PROCEDURE AND SYSTEM FOR CLAY/TONE DETECTION

TRANSMISSION OF TONUS FORMATIONS IN A NETWORK

High-performance welding wire for hidden arc welding of pipeline steel

A high-performance welding wire for the hidden arc welding of pipeline steel contains C (0.05-0.12 Wt.%), Si (0.005-0.1 wt.%), Mn (1.2-1.9 wt.%), Ni (0.1-0.5 wt.%), Cr (0.1-0.5 wt.%), Ti (0.04-0.12 wt.%) and B (0.062-0.012 wt.%) and is used in conjunction with alkaline sintering flux. Its welded seam has high tension strength (higher than 590 MPa), impact work greater than 150 J, hardness lower than 240 Hv and low contents of S and P. It is suitable for the pipeline to deliver H2S contained wet netural gas.

Method and system for tone detection

A method and system for tone detection is described. The method includes receiving a series of frames having a signal containing a tone and locating a first frame in the series of frames in which there is at least a partial tone. The signal energy of the first frame in which there is at least a partial tone may then be compared to the signal energy of a full tone frame or compared to the signal energy of a frame subsequent to the first frame in the series of frames. A start time of the tone in the signal may then be determined based on the comparison of the signal energies of the first frame and the full tone frame or subsequent frame. An end time of the tone in the signal may be determined by locating a last frame in the series of frames in which there is at least a partial tone and comparing the signal energy of the last frame in which there is at least a partial tone to the signal energy of a full tone frame or the signal energy of a frame preceding the last frame in the series of frames ...

LATENCY MANAGEMENT FOR A NETWORK

High-strength and high-toughness automatic submerged arc welding wire with weathering resistance

The invention relates to a high-strength and high-toughness automatic submerged arc welding wire with weathering resistance and mainly aims at overcoming disadvantages of poor atmospheric corrosion resistance, high production cost and the like of the existing submerged arc welding materials. In term of technical measures, the welding wire is made from the following chemical components by weight percent: C: 0.05-0.12, Si: 0.01-0.10, Mn: 1.50-2.1. S: not more than 0.015, P: not more than 0.020, Ni: 0.20-0.60, Cr: 0.20-0.50, Cu: 0.25-0.50, Ti: 0.05-0.16, B: 0.002-0.010, Als: 0.001-0.015, Fe and other unavoidable impurities. The welding wire is matched with a basic sintered flux for welding, a weld joint has excellent atmospheric corrosion resistance and comprehensive mechanical properties, and a deposited metal at a weld seam has tensile strength up to 560MPa and ballistic work up to 107J at -40 DEG C and up to 87J at -50 DEG C.

Hydraulic hoist machine hydraulic cylinder's locking device

The utility model belongs to the technical field of the hydraulic hoist machine technique and specifically relates to a be used for hydraulic hoist machine hydraulic cylinder's locking device, this locking device of includes: locking lever, locking lever one end are provided with the shaft shoulder, the other end and hydraulic cylinder's piston rod fixed, the opening has been seted up to clamping block, clamping block, and the opening is the first through -hole and the second through -hole of intercommunication each other, and the locking lever passes the opening of clamping block, and when the locking lever was located first through -hole, the shaft shoulder can pass the clamping block, and when the locking lever was located the second through -hole, the shaft shoulder can't pass the clamping block, the utility model discloses a hydraulic hoist machine hydraulic cylinder's locking device is through control the reciprocating of clamping block, realizes the unblock state and the switching ...

Mass spectrometer receiving cup adjusting mechanism

The invention belongs to the technical field of analytical instruments, and particularly relates to a mass spectrometer receiving cup adjusting mechanism. The device comprises a motor module, a lower fixing plate, an upper fixing plate, a first side supporting plate, a second side supporting plate, a first L-shaped connecting rod and a first receiving cup, the structure of the lower fixing plate is the same as that of an upper positioning plate, a plurality of motor module assembling holes are formed in the lower fixing plate, and the motor module is installed on the lower fixing plate through the motor module assembling holes; pin holes and side supporting plate assembling holes are formed in the edge of the lower fixing plate, and the first side supporting plate and the second side supporting plate are fixedly connected with the lower fixing plate through pins; the receiving cup I is mounted on the L-shaped connecting rod I; the first L-shaped connecting rod is installed on the motor ...

LATENZMANAGEMENT FÜR EIN NETZWERK

Low-alloy high-strength and high-toughness submerged-arc welding electrode

Data transport between a media gateway and server

A system and method for reducing latency includes receiving at a gateway time division multiplexed data from multiple sender devices, the time division multiplexed data including payloads. The method also includes a generated packet that includes the payloads from the received time division multiplexed data from the multiple sender devices. The method also includes indicating in the generated packet a destination indication associated with at least some of the payloads of the received time division multiplexed data and forwarding the generated packet to a media server.

Deslagging and dephosphorizing method of electric stove

The invention relates to a deslagging and dephosphorizing method of an electric stove, which adopts the following public technical scheme: slagging; deslagging for the first time; smelting by blowing oxygen, starting to deslag when the temperature of molten steel increases to 1500-1510 DEG C, and controlling the weight percentage of phosphorus to decrease to be not more than 0.015 percent; slagging for the second time; deslagging for the second time, i.e. starting to deslag for the second time when the temperature of molten steel increases to 1520-1550 DEG C, and controlling the weight percentage of the phosphorus to decrease to be not more than 0.010 percent; slagging for the third time; deslagging for the third time, and controlling the weight percentage of the phosphorus to decrease tobe not more than 0.005 percent; slagging for the fourth time; and preserving heat by blowing oxygen, adopting steel and slag residual operation with a tapping amount accounting for 85-90 percent of the ...

微钛硼高韧性气体保护焊丝

... 本发明涉及一种微钛硼高韧性气体保护焊丝，其化学成份重量百分比为：C 0.03～0.10、Mn 1.00～1.80、Si 0.20～1.00、Ni 0.50～1.40、Ti0.10～0.20、B 0.002～0.010、S≤0.10、P≤0.20、余量为Fe及其它不可避免的夹杂。本发明的焊丝采用混合气体(80％Ar+20％CO#-[2])保护焊时，焊缝金属的抗拉强度≥580MPa，-30℃冲击功A#-[kv]≥80J，焊丝具有良好的工艺性能，适应于全位置焊接。本发明的焊丝适用于600MPa级低合金高强钢、工程机械、铁路桥梁、海洋设施、高压容器、油气输送管线等大型重要结构的气体保护电弧焊。 ...

High intensity steel gas shielded welding technique method

The invention relates to a gas shielded welding technological method of high strength steel, which comprises the following technological steps: (1) a gas shielded welding joint is cut with a dual-V dissymmetrical divided edge at the angle of 60 degrees and the blunted edge of 2mm; (2) welding wires with the nominal strength of 700MPa are adopted for welding and have the tensile strength of a deposited metal of Rm more than or equal to 700MPa; (3) the mixed gas-shielded welding with 20 percent of CO2 plus 80 percent of Ar and argon-rich gas is adopted and no preheating is required before the welding and no heat treatment is carried out after welding; (4) the chemical composition of the welding wires adopted by weight percentage is that: C is 0.04 to 0.12, Si is 0.40 to 0.80, Mn is 1.40 to 2.0, P is less than or equal to 0.020, S is less than or equal to 0.015, Ni is 0.40 to 1.0, Cr is 0.20 to 0.50, Ti is 0.06 to 0.20, Cu is 0.30 to 0.50, B is 0.002 to 0.0079, Als is less than or equal to ...

Communicating tone information in a network

A method and apparatus to communicate tones is described.

Communicating tone information in a network

A method and apparatus to communicate tones is described.

Thick steel plate with excellent low-temperature toughness and Rm structure of 630MPa grade and production method of thick steel plates

The invention discloses a thick steel plate with excellent low-temperature toughness and Rm structure of 630MPa grade. The thick steel plate comprises the following components in percentage by weight: 0.04-0.08 percent of C, 0.10-0.25 percent of Si, 1.00-1.50 percent of Mn, less than or equal to 0.020 percent of P, less than or equal to 0.010 percent of S, 0.20-0.60 percent of Cu, 0.15-0.35 percent of Ni, 0.20-0.40 percent of Mo, 0.032-0.090 percent of Nb, 0.008-0.030 percent of Ti and less than or equal to 0.060 percent of Als. The method comprises the following production steps: smelting, performing continuous casting to obtain the billet, and heating the casting blank; performing hot rolling; and cooling according to the temperature sections. According to the thick steel plates and the production method disclosed by the invention, the KV2 at the temperature of 40 DEG C below zero is more than or equal to 200J, the tensile strength Rm is between 630 and 780MPa, the yield ratio ReL/Rm ...

Latency management for a network

Atomization technology-based light-cured rapid prototyping product surface roughness reducing method

The invention discloses an atomization technology-based light-cured rapid prototyping product surface roughness reducing method. The method adopting a liquid wax emulsion as a raw material comprises the following steps: heating the material, and atomizing to form uniform atomization environment in an atomization box; placing a light-cured rapid prototyping product in the atomization box, and uniformly coating the internal and external cavity surfaces of the light-cured rapid prototyping product with the atomized wax emulsion for a certain time, taking out he light-cured rapid prototyping product, heating the light-cured rapid prototyping product in an oven, and drying to remove water in the emulsion to form an extremely thin coating on the internal and external cavity surfaces of the light-cured rapid prototyping product. The coating can eliminate a step effect generated through a light curing rapid molding technology and reduce the surface roughness of the light-cured rapid prototyping ...

Method for preparing original membrane dispersed ester by adopting micro-channel continuous flow reactor

The invention discloses a method for preparing protomembrane bulk ester by adopting a microchannel continuous flow reactor, which comprises the following steps: mixing and preheating salicylate and isophorone alcohol, then introducing the mixture and an ester exchange catalyst into the microchannel continuous flow reactor for reaction, and after the reaction is completed, carrying out post-treatment to obtain the protomembrane bulk ester, the micro-channel continuous flow reactor comprises one or N reaction units which are connected in series, and each reaction unit is formed by connecting a micro-channel reactor and a falling film evaporator in series. The method has the advantages of mild reaction conditions, few by-products generated in the reaction, high reaction selectivity and realization of continuous production.

CONFERENCE SERVER DYNAMICALLY DETERMINING INFORMATION STREAMS TO BE RECEIVED BY A CONFERENCE BRIDGE

Making method of surface double-walled hollow turbine blade

The invention discloses a making method of a surface double-walled hollow turbine blade, and belongs to the technical field of rapid casting. The method comprises the following steps: designing and preparing negative resin of a double-walled hollow turbine blade containing impact openings, and separately preparing a resin outer wall corresponding to a double-walled cooling channel, and resin prototype; making the ceramic core of the double-walled cooling channel through a compression molding technology, inlaying the ceramic core in the resin prototype, and respectively assembling the resin prototype with the outer wall and the resin shell to make resin prototype containing the ceramic core; making a ceramic mold blank containing the ceramic core through a gel injection molding technology, freeze-drying, carrying out degreasing pre-burning, and post-processing a ceramic mold; and making a turbine blade through a casting technology, and carrying out laser or electric spark processing to obtain ...

COMMUNICATING TONE INFORMATION IN A NETWORK

High-strengeh and high-toughness submerged-arc welding wire

Method for guiding north for equipment to be tested by using turntable capable of guiding north

The invention relates to a method for guiding north for equipment to be tested by using a turntable capable of guiding north, which belongs to the technical field of inertial testing. The method comprises the steps of: obtaining a north-orienting reference by using a three-axis testing turntable, and controlling an outer frame of the turntable to rotate horizontally by a control mechanism to point to south and north; installing equipment to be tested on a flat plate of an inner frame of the turntable in the north-orienting direction approximately, and rotating a middle frame of the turntable to rotate vertically by 90 degrees by the control mechanism to ensures that the top surface of the equipment to be tested faces to the west; installing a quadrant on the upper surface of the equipment to be tested by connecting pieces; reading the angle indicated by the quadrant after the reading of the quadrant is stable; rotating the inner frame of the turntable in a reversed direction by the control ...

Process chamber, base level monitoring method and control device

The invention provides a process chamber, a base level monitoring method and a control device. The process chamber comprises a base, a bell jar, at least two distance measuring sensors and a control device, the base is positioned in the bell jar; the upper surface of the base is circular; the at least two distance measuring sensors are arranged above the base and are positioned outside the bell jar; the at least two distance measuring sensors are located on the same horizontal plane, the projection positions of the at least two distance measuring sensors on the base are distributed around the circle center of the base, and the distances to the circle center of the base are the same; the at least two distance measuring sensors are used for measuring a plurality of distances from the distance measuring sensors to the base in the vertical direction in the process that the base rotates for at least one circle, and sending the plurality of distances to the control device; the control device ...

Preparation method of low-temperature sintering nano-sized magnesium titanate powder

The invention discloses a preparation method of low-temperature sintering nano-sized magnesium titanate powder, comprising the following steps of: dissolving a magnesium compound into absolute ethyl alcohol; then adding and dissolving a proper quantity of boric acid, lithium nitrate and ammonium metavanadate in the absolute ethyl alcohol, and meanwhile, dissolving a titanium compound into acetic acid; mixing the above two solutions and simultaneously adding a proper quantity of surfactant; after the above mixed solution is evenly stirred, putting the solution into water bath to obtain gel; drying the gel; and calcining at the temperature of 600-1000 DEG C to obtain the magnesium titanate powder disclosed in the invention. The method has simple process, and a low-temperature sintering accessory ingredient precursor is introduced into the solution of magnesium and titanium compound, so that an accessory ingredient component is evenly mixed with a magnesium titanate matrix component at the ...

Manual welding method used for pressure container steel thick plates with tensile strength larger than or equal to 610 MPa

The invention relates to a manual welding method used for pressure container steel thick plates with the tensile strength larger than or equal to 610 MPa. The mechanical properties of base materials are as follows: Rm >= 610 MPa, ReL >= 490 MPa, the elongation A >= 17%, and -40 DEG C KV2 >=54J; the base materials are equal thick plates with the thickness of 28 mm and equal thick plates with the thickness of 44 mm, and the equal thick plates are butt-welded; according to the welding material, the Rm of welding rods is not lower than 610 MPa, and the diameter phi of the welding rods is 4.0 mm; a groove is a double-faced V-shaped symmetric groove, the angle of the groove is 55 degrees, and the length of the truncated edge is 3 mm; preheating is not performed before welding, and thermal treatment is not performed after welding; according to the welding parameters, the current ranges from 170 A to 185 A, the voltage ranges from 27 V to 28 V, the speed ranges from 16 cm/min to 17 cm/min, the ...

High-toughness gas protective welding wire for low alloy high-strength steel

Deslagging and dephosphorizing method of electric stove

The invention relates to a deslagging and dephosphorizing method of an electric stove, which adopts the following public technical scheme: slagging; deslagging for the first time; smelting by blowing oxygen, starting to deslag when the temperature of molten steel increases to 1500-1510 DEG C, and controlling the weight percentage of phosphorus to decrease to be not more than 0.015 percent; slagging for the second time; deslagging for the second time, i.e. starting to deslag for the second time when the temperature of molten steel increases to 1520-1550 DEG C, and controlling the weight percentage of the phosphorus to decrease to be not more than 0.010 percent; slagging for the third time; deslagging for the third time, and controlling the weight percentage of the phosphorus to decrease to be not more than 0.005 percent; slagging for the fourth time; and preserving heat by blowing oxygen, adopting steel and slag residual operation with a tapping amount accounting for 85-90 percent of the ...

METHOD AND SYSTEM FOR TONE DETECTION

A method and system for tone detection is described. The method includes receiving a series of frames having a signal containing a tone and locating a first frame in the series of frames in which there is at least a partial tone. The signal energy of the first frame in which there is at least a partial tone may then be compared to the signal energy of a full tone frame or compared to the signal energy of a frame subsequent to the first frame in the series of frames. A start time of the tone in the signal may then be determined based on the comparison of the signal energies of the first frame and the full tone frame or subsequent frame. An end time of the tone in the signal may be determined by locating a last frame in the series of frames in which there is at least a partial tone and comparing the signal energy of the last frame in which there is at least a partial tone to the signal energy of a full tone frame or the signal energy of a frame preceding the last frame in the series of frames ...

High-toughness gas protective welding wire for low alloy high-strength steel

The chemical composition of high-toughness gas shielded welding wire for low alloy high-strength steel contains (wt%): C 0.05-0.12, Mn 1.20-2.00, Ni 0.60-1.60, Si 0.30-1.20, Cu 0.10-0.50, Cu 0.10-0.60, Ti 0.10-0.20, B 0.02-0.010, S is less than or equal to 0.10, P is less than or equal to 0.20 and the rest is Fe and inevitable impurity elements. When said welding wire is used to make mixed gas (80% Ar+20% Co2) shielded arc welding the weld metal tensile strength is 700-800 MPa, and the persuccion power at -30 deg.C Akv is greater than or equal to 80J. Said invented with is applicable to gas shielded arc welding for 700 MPa low-alloy high-strength steel, and possesses good technological performance and is suitable for welding all positions.

360-degree high-altitude shooting pan-tilt camera mounted on tower crane

The invention relates to the technical field of construction monitoring, in particular to a 360-degree high-altitude shooting cradle head camera mounted on a tower crane, which comprises a high-definition camera, a mechanical arm assembly is arranged at the upper end of the high-definition camera, and the high-definition camera is mounted at a specified position on the tower crane through the mechanical arm assembly. The mechanical arm assembly is operated to drive the high-definition camera on the lower portion to swing left and right and rotate by 360 degrees, and all-directional and dead-corner-free shooting of a construction site is achieved.

Submerged-arc butt welding method for engineering structure steel with Rm larger than or equal to 650 MPa

Disclosed is a submerged-arc butt welding method for engineering structure steel with Rm larger than or equal to 650 MPa. The method includes the steps that the mechanical property of a base material is ensured, wherein Rm is larger than or equal to 650 MPa, ReL is larger than or equal to 585 MPa, the elongation A is larger than or equal to 18%, and the impact energy at -60 DEG C KV2 is larger than or equal to 69J; thick steel plates of which the thicknesses are 16 mm, 20 mm and the like are in butt welding; matched welding sticks are determined, wherein the Rm is not less than 690 MPa, the diameter is 4.0 mm, and soldering flux is CHF105; the submerged-arc welding groove type is ensured, and a double-faced V-type asymmetric groove is achieved, wherein the groove angle is 70 degrees and the truncated edge is 4.0 mm; the welding process conditions are determined, wherein welding is carried out continuously in a multi-layer and multi-channel mode under the situations that current is 500-600 ...

Preparation method of biuret polyisocyanate

The present invention relates to a biuret polyisocyanate preparation method, which comprises: providing a water-absorbent resin, and allowing the water-absorbent resin to absorb water until the water-absorbent resin is saturated, the strength of the water-absorbent resin is greater than or equal to 2000 N/kg, the water absorption rate of the water-absorbent resin is 2000 g/g, the water-absorbent resin can release absorbed water molecules under an acidic strip, and the water molecule release speed is 0.10 g/(g.h)-0.15 g/(g.h); mixing the saturated water-absorbent resin with a diisocyanate monomer and an acid catalyst to form a reaction system, and reacting to obtain a reactant; and the biuret polyisocyanate is separated from a reactant. The saturated water-absorbent resin is adopted to release water molecules as required in the reaction process to participate in synthesis of biuret polyisocyanate, generation of polyurea by-products can be inhibited, then the reaction selectivity is improved ...

Multi-chamber reactor for preparing sulfur hexafluoride and usage method of multi-chamber reactor

The invention discloses a multi-chamber reactor for preparing sulfur hexafluoride, and a usage method of the multi-chamber reactor. A reaction zone of the multi-chamber reactor is divided into an upper part and a lower part, the lower part is a liquid phase chamber, the upper part is divided into at least two reaction chambers by a partition, a channel is left between the partition and the bottom of the multi-chamber reactor, each reaction chamber is provided with a fluorine inlet and a sulfur hexafluoride outlet, a charging zone is communicated with all the reaction chambers through the channel between the partition and the bottom of the multi-chamber reactor, a temperature control device is arranged on the upper part of the multi-chamber reactor, and a sulfur heater is arranged at the bottom of the multi-chamber reactor. According to production or overhauling demand, any one or more reaction chambers can be closed or opened. The multi-chamber reactor is easy for the technology to control ...

Construction method with silo sliding formwork operating platform as top cover plate formwork supporting system

The invention provides a construction method with a silo sliding formwork operating platform as a top cover plate formwork supporting system and belongs to the construction and installation field. The construction method comprises performing designing and checking calculation on the silo sliding formwork operating platform; producing the silo sliding formwork operating platform; embedding steel bracket embedded parts into cylinder wall concrete; embedding hanging rings into the cylinder wall concrete; descending the silo sliding formwork operating platform to the design elevation; welding a steel bracket; installing the silo sliding formwork operating platform; installing formwork vertical bars; installing the formwork system; removing the formwork. According to the construction method with the silo sliding formwork operating platform as the top cover plate formwork supporting system, the labor intensity can be reduced, the construction progress can be accelerated, the construction period ...

Method for improving position accuracy of mold core of integrated type ceramic mold

The invention discloses a method for improving the position accuracy of a mold core of an integrated type ceramic mold, and belongs to the field of rapid costing based on stereo-lithography technologies. The method comprises the steps that (1) three-dimensional software is utilized to design a resin mold, and a resin mold prototype with a positioning hole is manufactured by utilizing a stereo-lithography method; (2) a ceramic fiber or a ceramic bar penetrates into the positioning hole according needs; (3) ceramic slurry is poured into the resin mold prototype of turbine blades through a gel casting method to obtain a mold blank; (4) vacuum freeze drying and sintering are carried out on the mold blank to obtain the integrated type ceramic mold of the turbine blades. The position accuracy of the mold core of the integrated type ceramic mold can be effectively improved through the vertically through or non-through mold core, and the method is reasonable in design, is easy and convenient to ...

ÜBERTRAGUNG VON TONINFORMATIONEN IN EINEM NETZWERK

Submerged arc welding method of bridge steel of different intensity scale

The invention discloses a hidden arc welding method for bridge steel at different levels of strength, which adopts two steel types with different tensile strengths, namely 510-550MPa and 570-650MPa as the subject of hidden arc welding; an X-type asymmetric divided edge is adopted as the divided edge of hidden arc welding; the adopted steel types are 14MnNbq steel and WNQ5709 steel; the yield strength ReL of the 14MnNb steel is 370-415MPa, the tensile strength Rm thereof is 510-550MPa, the unit extension A thereof is 20-35%, and the -40 DEG C AKV impact energy thereof is 120-290J; the yield strength Rel of the WNQ570 steel is 420-560MPa, the tensile strength Rm thereof is 570-650MPa, the unit extension A thereof is 18-27%, and the -40 DEG C AKV impact energy thereof is 120-270J; the thickness of steel plates is 32-60mm; the angle of the divided edge is 60 DEG; and the length of the truncated edge is 6mm. The hidden arc welding method meet the requirements for using the key hidden arc welding ...

Lake and river water area inspection method, device, equipment and medium

The invention discloses a lake and river water area inspection method, device, equipment and medium, and the method comprises the steps: determining an inspection range of a target water area to be inspected, and determining an inspection route of flight inspection equipment according to the inspection range; controlling the flying inspection equipment to fly along the inspection route, and controlling the flying inspection equipment to collect image data of the target water area to be inspected on the inspection route in the flying process; in the process of collecting the image data, carrying out image recognition on the image data, and screening out a water area abnormal image in the image data; the water area abnormal image and the geographic position data carried by the water area abnormal image are sent to a target terminal, and the target terminal is used for displaying the water area abnormal image and the geographic position data to a worker so that the worker can process the abnormal ...

High-strength bridge steel Q500qE thick plate gas protection butt welding method

A high-strength bridge steel Q500qE thick plate gas protection butt welding method includes: butt welding bridge steel of uniform thickness of 50mm and 60mm; continuously welding under the condition that current is 280-290A, voltage is 27-28V, speed is 28-27cm/min, linear energy is 16-18kj/cm, rich argon is used as protective gas, and temperature between layers is controlled to be not larger than 210 DEG C until weld joints are filled; wherein the mechanical property of base material is characterized in that Rm>/=650MPa, ReL>/=500MPa, ductility A>/=18%, and ballistic impact -40-degre CKV2>/=120J; the tensile strength of a matched welding wire is not lower than 650MPa, and the diameter phi of the welding wire is 1.2mm; a groove is a double-sided V-shaped symmetrical groove, the angle of the groove is 60 degrees, and the truncated edge of the groove is 1mm. The butt welding method is excellent in welding process performance, simple to operate, efficient, energy saving, and suitable for being ...

Method for controlling sintering creep of integral type hollow turbine blade ceramic casting mould cores

The invention discloses a method for controlling sintering creep of integral type hollow turbine blade ceramic casting mould cores. The method includes the following step that an initial ceramic casting mould die is drawn with the bottom face of a turbine blade as a reference plane; an initial ceramic casting mould is prepared according to the initial ceramic casting mould die; the orientation relative to the horizontal plane of the initial ceramic casting mould in a hearth serves as the initial casting mould orientation; a U-shaped mould core of the whole set of mould cores under the initial casting mould orientation is selected as the optimized object; the gravity center of the U-shaped mould core and face centers of two end faces serve as end points to form a spatial triangle; the plane where the spatial triangle is located is recorded as a gravity center face, the gravity center face is made to be perpendicular to the horizontal plane through changing the orientation of the initial ...

Thick steel plate buried arc welding method for high-strength bridge

The invention relates to a submerged arc welding butt welding technique for high intensity bridge steels, which is used for solving problems at present that in the submerged arc welding butt welding of making large span bridge structures by the bridge steels with low alloy and high intensity, the bridge steels need to be heat treated and back-gouged after being welded. The measure is as following: the method of the invention includes that the bridge steels with the tensile strength of 570MPa to 650MPa and the thickness of 36 to 60mm are used; the matched welding material meet the requirements that the tensile strength of welding wires is 600MPa, the diameter Phi of the welding wires is 5.0mm, the welding flux is SJ105Q; a submerged arc welding groove adopts a double-sided V shape asymmetrical groove, the groove angle is 60 degrees, the blunted edge is 6mm; the flame before the welding is preheated to 80 DEG C to 100 DEG C; the welding parameter includes that the welding current is 680A ...

High-strength and high-toughness automatic submerged arc welding wire with weathering resistance

The invention relates to a high-strength and high-toughness automatic submerged arc welding wire with weathering resistance and mainly aims at overcoming disadvantages of poor atmospheric corrosion resistance, high production cost and the like of the existing submerged arc welding materials. In term of technical measures, the welding wire is made from the following chemical components by weight percent: C: 0.05-0.12, Si: 0.01-0.10, Mn: 1.50-2.1. S: not more than 0.015, P: not more than 0.020, Ni: 0.20-0.60, Cr: 0.20-0.50, Cu: 0.25-0.50, Ti: 0.05-0.16, B: 0.002-0.010, Als: 0.001-0.015, Fe and other unavoidable impurities. The welding wire is matched with a basic sintered flux for welding, a weld joint has excellent atmospheric corrosion resistance and comprehensive mechanical properties, and a deposited metal at a weld seam has tensile strength up to 560MPa and ballistic work up to 107J at -40 DEG C and up to 87J at -50 DEG C.

Steel for flux-cored wire jacket and manufacturing method thereof

The invention relates to steel for a flux-cored wire jacket and a manufacturing method thereof. The steel solves the problem that the existing steel has bad component matching degree with the flux core, more impurity element content, low elongation percentage and low welding wire deposited metal obdurability, and easily produces strip breakage, and the like. The measure is as follows: the steel comprises chemical constituents according to the weight percentage: 0.012-0.038% of C, 0.003-0.009% of Si, 0.20-0.29% of Mn, 0.015-0.05% of Cu, 0.015-0.19% of Al, 0.001-0.005% of Re, less than or equalto 0.01% of P, less than or equal to 0.008% of S, less than or equal of 0.002% of N, the rest of Fe and unavoidable impurities. The manufacturing method is as follows: carrying out melting proceduressuch as hot metal desulfurization, converter blowing, RH vacuum treatment and the like on steel ball components which are continuously cast and form a briquette; and then carrying out hot rolling andreeling ...

High intensity bridge steel manual welding technique method

The invention provides a manual welding process method of high strength bridge steel. The manual welding process method comprises the steps as follows: (1) the bridge steel with the tensile strength of 570-650MPa and the thickness of 32-60mm is taken as a base material for welding; the matching welding materials are as follows: the tensile strength of a manual electrode is 590-650MPa and the diameter Phi of the electrode is 4.0mm; (2) a groove is an X-shaped symmetrical groove and the groove angle is 60 degrees, the root face is 2mm; (3) the welding process parameters are as follows: the welding current is 165-170A, the welding voltage is 26-25V, the welding speed is 17-15cm/min, the weld line energy is 15-17kJ/cm and the baking system of the electrode is 350 DEG C multiplied by 1h; (4) the manual welding adopts continuous multilayer and multipass welding, the interlayer temperature is controlled within 100-150 DEG C. The manual welding process method of the invention is characterized by ...

Communicating tone information in a network

A method and apparatus to communicate tones is described.

Disc type wind driven generator

A disc type wind driven generator comprises a generator body, the lower end face of the generator body is connected with a supporting column, one side end of the generator body is connected with fan blades through a rotating shaft, a containing cavity is formed in the generator body, the upper portion of the interior of the containing cavity is connected with a containing shell, and the interior of the generator body is connected with a pushing mechanism. A motor is started to drive a rotating body to rotate, a gear is driven by the rotating body to be meshed with a first rack and a second rack, stress of the first rack and the second rack is transmitted to a first connecting plate and a second connecting plate, the first connecting plate and the second connecting plate drive a first supporting plate and a second supporting plate to move towards the two sides, and the first supporting plate and the second supporting plate slide on a sliding rail; the first supporting plate and the second ...

Method and system for tone detection

Steel for flux-cored wire jacket and manufacturing method thereof

The invention relates to steel for a flux-cored wire jacket and a manufacturing method thereof. The steel solves the problem that the existing steel has bad component matching degree with the flux core, more impurity element content, low elongation percentage and low welding wire deposited metal obdurability, and easily produces strip breakage, and the like. The measure is as follows: the steel comprises chemical constituents according to the weight percentage: 0.012-0.038% of C, 0.003-0.009% of Si, 0.20-0.29% of Mn, 0.015-0.05% of Cu, 0.015-0.19% of Al, 0.001-0.005% of Re, less than or equal to 0.01% of P, less than or equal to 0.008% of S, less than or equal of 0.002% of N, the rest of Fe and unavoidable impurities. The manufacturing method is as follows: carrying out melting procedures such as hot metal desulfurization, converter blowing, RH vacuum treatment and the like on steel ball components which are continuously cast and form a briquette; and then carrying out hot rolling and reeling ...

High-strength Q500qE bridge steel thick plate submerged-arc welding method

A high-strength Q500qE bridge steel thick plate submerged-arc welding method includes the steps: applicable mechanical properties of base plates include ReL not smaller than 500MPa, Rm not smaller than 650MPa, elongation A not smaller than 18%, and -40oCKV2 impact power not smaller than 120J; thick plates are combined by welding under equal thickness of 50mm and 60mm, preheating is not performed before welding, and heat treatment is not performed after welding; submerged-arc welding grooves are double-side U-shaped symmetric grooves at 60-degree angle, root face R of each grove is 7mm; tensile strength of submerged-arc welding rods is not lower than 610MPa, the diameter phi of the submerged-arc welding rods is 5.0mm, and the submerged-arc welding rods are used with sintered flux SJ101Q; welding process parameters include current 630A, voltage about 31V, speed 34cm/min, energy input 35kJ/cm, and flux baking system 350 DEG C*1h; multi-layer multiple welding is performed continuously, and ...

Walking planetary reducer of mining excavator

The invention provides a walking planetary reducer of a mining excavator, which relates to a mining excavator. The invention solves the problems of low carrying capacity and inconvenient maintenance of the walking planetary reducer in the prior art. The invention is characterized in that a first-level input gear shaft is meshed with a gear, the gear is connected with a second-level sun shaft by adopting a spline, a second-level planetary wheel and a second-level internal gear ring are driven to be meshed by the second-level sun shaft, the second-level sun shaft is used for driving a second-level planetary frame to integrally rotate through the connection of the second-level planetary wheel and a pin shaft (1), the second-level planetary frame is connected with a third-level sun shaft in a tooth mode, a third-level planetary wheel and a third-level internal gear ring are driven to be meshed by the third-level sun shaft, the third-level sun shaft is used for driving a third-level planetary ...

Low-alloy high-strength and high-toughness submerged-arc welding electrode

The chemical composition (wt.%) of low alloy high strength high toughness submerged-arc welding wire contains C 0.06-0.12, Mn 1.20-1.80, Si 0.02-0.06, Ni 0.20-0.50, Ti 0.10-0.16, B 0.006-0.01 the rest Fe and unavoidable S and P. The invented welding wire is medium manganese low silicon micro alloyed submerged arc welding wire, after welding, the weld joint possesses high strength and low temp. impact toughness, no preheating is required before welding and no heat treatment is required after welding the technological performance of welding is good, it can be used in the welding of bridge, petroeum pipeline, large type pressure container etc.

Multi-path screen projection method, multi-path screen projection device and display equipment

The invention relates to a multi-path screen projection method, a multi-path screen projection device and display equipment, and is applied to the technical field of screen projection, and the method comprises the following steps: in response to a plurality of received screen projection requests, determining a screen projection protocol corresponding to each screen projection request; determining a multi-frequency multi-connection screen projection mode based on a screen projection protocol corresponding to each screen projection request; determining that the wireless network WiFi module has loaded a target driving program corresponding to the multi-frequency multi-connection screen projection mode, so that a plurality of interfaces corresponding to the target driving program can work normally, and each interface corresponds to a communication frequency band; receiving screen projection data corresponding to the plurality of screen projection requests through each communication frequency ...

High-strength bridge steel-gas protective welding method

The invention discloses a gas-shielded welding method for high-strength bridge steel, which comprises the following steps: (1) the high-strength bridge steel with the tensile strength of between 570 and 650MPa and the thickness of 50 millimeters is adopted, a matched welding material is adopted, wherein the tensile strength of a welding wire is between 570 and 660MPa, and the diameter of the welding wire is 1.2 millimeters; (2) a gas-shielded welding groove adopts a double V-shaped symmetrical groove, the angle of the groove is 60 DEG, and the truncated edge is 2 millimeters; (3) the welding process specification is as follows: the welding current is between 250 and 270 amperes, the welding voltage is between 23 and 27 volts, the welding speed is between 30 and 29 centmeters/minute, the welding heat input is between 12 and 15kJ/cm, the argon-rich mixed gas metal arc welding with 20 percent of CO2 and 80 percent of Ar is adopted, the flow of gas is between 18 and 20 liters/minute, no preheating ...

Clock drift compensation method for remote communications

A system may include a buffer, a local clock, and a processor. The buffer may store and output received media information. The local clock may control a rate at which the buffer outputs stored media information. The processor may determine a number of mean time differences between the local clock and a remote clock at a corresponding number of different times. The processor may also detect whether the local clock has drifted relative to the remote clock based on the number of mean time differences, and the processor may adjust the local clock if the local clock has drifted.

CO2 gas protection welding process of 800 MPa high-strength steel

The invention discloses a CO2 gas protection welding process of 800 MPa high-strength steel. The CO2 protection welding process is characterized by comprising the following steps of: (1) machining a joint: machining an X-shaped groove on the joint; (2) using a solid welding wire with the diameter of 1.2 mm and the tensile strength of 800 MPa, wherein the solid welding wire comprises the following chemical components in percentage by weight: 0.04-0.10% of C, 0.30-0.80% of Si, 1.30-2.0% of Mn, 0.40-1.0% of Ni, 0.20-0.50% of Cr, 0.20-0.60% of Mo, 0.30-0.80% of Cu, 0.05-0.20% of Ti, 0.002-0.010% of B, less than and equal to 0.020% of P, less than and equal to 0.015% of S, less than and equal to 0.03% of Als, and the balance of Fe and inevitable impurities; (3) setting a welding mode: adopting CO2 gas protection welding and a DC power supply opposition method; and (4) welding: carrying out one-side welding with back formation on a first welding line, and then carrying out multilayer multipass ...

Thick steel plate buried arc welding method for high-strength bridge

The invention relates to a submerged arc welding butt welding technique for high intensity bridge steels, which is used for solving problems at present that in the submerged arc welding butt welding of making large span bridge structures by the bridge steels with low alloy and high intensity, the bridge steels need to be heat treated and back-gouged after being welded. The measure is as following: the method of the invention includes that the bridge steels with the tensile strength of 570MPa to 650MPa and the thickness of 36 to 60mm are used; the matched welding material meet the requirementsthat the tensile strength of welding wires is 600MPa, the diameter Phi of the welding wires is 5.0mm, the welding flux is SJ105Q; a submerged arc welding groove adopts a double-sided V shape asymmetrical groove, the groove angle is 60 degrees, the blunted edge is 6mm; the flame before the welding is preheated to 80 DEG C to 100 DEG C; the welding parameter includes that the welding current is 680A to ...

Communicating tone information in a network

Hot auxiliary material extrusion direct-writing 3D printing method for continuous fiber reinforced ceramic

The invention relates to a continuous fiber reinforced ceramic thermal auxiliary material extrusion direct-writing molding 3D printing method, which comprises the following steps: (1) preparing thermoplastic ceramic ink with the melting temperature of 75-90 DEG C, and injecting the thermoplastic ceramic ink into a heatable direct-writing molding charging barrel; (2) heating the heatable direct-writing forming charging barrel to a specified temperature, enabling the ceramic ink to be in a molten state, supplying the ceramic ink to a coaxial nozzle by an extrusion system, fully combining the ceramic ink with continuous fibers, co-extruding into filaments, and stacking layer by layer to form a continuous fiber reinforced ceramic composite material preform; and (3) degreasing, vacuum impregnating and sintering the continuous fiber reinforced ceramic composite material preform to obtain the continuous fiber reinforced ceramic matrix composite material. According to the preparation method, the ...

Optimizing buffer latency in a streamed packet delivery session

A method of optimizing the buffer latency in a streaming application for delivering streamed packets over a network. The packet delays are dynamically recorded for forming a histogram of the frequencies of occurrence associated with each delay. The histogram is updated plural times during a single session. A optimal latency is obtained from the updated histogram at which the packet loss percentage is within a predetermined amount and the optimal latency is less than a allowable maximum delay required by the application. The size of the buffer is thus adjusted.

Communicating Tone Information in a Network

A method and apparatus to communicate tones is described. 1. A method to communicate tones , comprising:receiving information representing a tone;creating a first packet having a first portion of said information;sending said first packet to a receiver;creating a second packet having said first portion and a second portion of said information; andsending said second packet to said receiver.2. The method of claim 1 , wherein said information represents a dual tone multi-frequency digit.3. The method of claim 1 , wherein creating said first packet and said second packet is accomplished in accordance with RFC 2833.4. The method of claim 1 , wherein sending said first packet and said second packet is accomplished in accordance with the RTP protocol.5. The method of claim 1 , wherein said information represents a name for said tone.6. The method of claim 1 , wherein said information represents a frequency for said tone.7. A method to communicate tones claim 1 , comprising:receiving a first packet having a first portion of information representing a tone; andreceiving a second packet having said first portion and a second portion of said information.8. The method of claim 7 , further comprising reproducing said tone using said first and second portions.9. The method of claim 7 , wherein said information represents a dual tone multi-frequency digit.10. The method of claim 7 , wherein said first packet and said second packet are created in accordance with RFC 2833.11. The method of claim 7 , wherein said first packet and said second packet are received in accordance with the RTP protocol.12. The method of claim 7 , wherein said information represents a name for said tone.13. The method of claim 7 , wherein said information represents a frequency for said tone.14. A method to communicate tones claim 7 , comprising:receiving information representing a tone;creating a first packet having a first portion of said information;sending said first packet to a receiver;creating a ...

High strength high tenacity high weather resistant gas protecting welding wire

The invention relates to a kind of high strength, high tenacity, high withering, and air protecting welding thread. It can avoid mismatching of present welding material, especially poor quality of prevent gas erode. The technique is flowing: first the chemical component is : C:0.04~0.12; Si:0.40~0.80; Mn:1.40~2.0;Píœ0.020;S0.015;Ni:0.40~1.0;Cr:0.20~0.50;Ti:0.06~0.20;Cu:0.30~0.50;B:0.002~0.0079;Alsíœ0.02; a little Fe and other unavoidable impurities. The welding thread is protected by mix gas that is made of percent 80 Ar and percent 20 CO2. The thread head is better in gas eroding proof and mechanism. The tensile strength of the welding slot is as high as 735MPa. And AKv(-0.4íµ) of it is 182 J, AKv(-0.6íµ) of it is 173íµ. The thread is suited to gas protecting welding for important part of railroad, bridge, pipe and so on.

Microtitanium-boron high-toughness gas protective welding stick

The present invention relates to a micro titanium-boron high-toughness gas shielded welding wire, its chemical components (wt.%) are: C 0.03-0.10, Mn 1.00-1.80, Si 0.20-1.00, Ni 0.50-1.40, Ti 0.10-0.20, B 0.002-0.010, S less than or equal to 0.10, P less than or equal to 0.20 and the rest being Fe and other unavoidable impurity. When the welding wire is used to make protective welding by adoptingmixed gas (80% Ar+20% CO2), the wield metal tensile strength is greater than or equal to 580 Mpa, -30 deg.C impact work Akv is greater than or equal to 80J, and it adapts to all-position welding. This invented welding wire possesses excellent processing property, and is suitable for gas protective arc welding of large-type structures of 600 MPa level low-alloy high strength steel, engineering machine, railway bridge, marine installation, high-pressure container and oil-gas transmission pipeline, etc.

Manufacturing method of hollow turbine blade provided with impact hole structure

The invention relates to a manufacturing method of a hollow turbine blade provided with an impact hole structure. The method comprises the steps of firstly, preparing a plurality of aluminum oxide ceramic mold cores corresponding to a plurality of main cooling channels in the hollow turbine blade; after that, preparing an impact hole core between every two adjacent aluminum oxide ceramic mold cores, wherein a molybdenum wire is arranged in the center of each impact hole core, and a ceramic layer is arranged on the surface of each impact hole core; assembling the impact hole cores and the plurality of aluminum oxide ceramic mold cores in a combining way, putting the assembled product into a wax mould of the hollow turbine blade; injecting wax into a mold cavity of the wax mould, separating the wax mould after the wax is solidified, and spraying ceramic slurry onto the surface of a wax model to prepare a ceramic mold shell; melting the wax, and carrying out calcination to prepare a ceramic ...

Prediction method for efficiency of welded joint by 550-850MaPa gas shielded welding

The invention relates to a forecasting method for 550 to 850MPa gas shield welding weld strength, which comprises the following steps of: (1) selecting welding materials, and obtaining chemical compositions of the welding seam when the welding materials are welded on a specified steel plate; (2) designing welding procedure; and (3) calculating. The method refers to a plurality of formulas, proposes the relationship between the gas shield welding seam acicular ferrite proportion FA% and the welding wire carbon equivalent CE, and comes up with a forecasting method for the weld strength of 550 to 850MPa medium heavy steel plates. The method carries out a great deal of tests based on the actual situations of scientific research and verifies that the weld strength forecasting method has higheraccuracy and is successfully used for guiding the welding wire research and development and the establishment of welding procedure, so as to achieve good results, significantly reduce the cost for research ...

Optical functional film

The invention belongs to the technical field of optical films, and relates to an optical functional film. In order to solve the problem that the brightness level visual angle of an existing liquid crystal display is small, the invention provides the optical functional film. The optical function film sequentially comprises a release layer, a bonding layer, a base material layer, an optical structure layer and a filling layer. The optical structure layer enables light to be refracted, so that the visual angle is increased. The surface of the filling layer is provided with a fluctuating structure. The optical functional film can be externally attached to the outer side of a screen of liquid crystal display equipment and is used for overcoming the defect that the horizontal or vertical brightness visual angle of the existing liquid crystal display equipment is narrow (small). Furthermore, due to low color cast value view angle curve fluctuation, the subjective feeling of the liquid crystal ...

Water vapor barrier film and preparation method thereof

The invention relates to the technical field of water vapor barrier for display, in particular to a water vapor barrier film and a preparation method thereof. In order to solve the problem of accelerated aging damage to a display material caused by water vapor in a humid environment and ultraviolet rays in sunlight, the invention provides the water vapor barrier film and the preparation method thereof. The barrier film structurally comprises an anti-ultraviolet layer, a transition layer, a barrier layer and a base material layer from top to bottom. The water vapor barrier film has the functions of blocking high-grade water vapor and absorbing part of ultraviolet rays, and the purposes of blocking water vapor in the environment and stopping part of ultraviolet rays are achieved.

Method and system for tone detection

Tone detection includes receiving a series of frames having a signal containing a tone and locating a first frame in the series of frames in which there is at least a partial, tone. The signal energy of the first frame may then be compared to the signal energy of a full tone frame or compared to the signal energy of a frame. A start time of the tone in the signal may then be determined. An end time of the tone in the signal may be determined by locating a last frame in the series of frames. The duration of the tone signal may be determined based on the determined start time and end time of the tone in the signal.

Communicating tone information in a network

Multi-conference stream mixing

A system, an apparatus, and a method for mixing multiple conferencing streams using a single mixer.

Buried arc welding method for high-strength T shaped contact of bridge steel

The invention mainly provides a welding method which utilizes a submerged arc-welding technology to weld a large-span high-strength bridge steel T-shaped joint by using matched materials without preheating before welding or heat treatment after welding. The technical measures are that the bridge steel with 570-650MPa of tensile strength and 32-50mm of thickness is adopted; the matched materials comprise the welding wires with 5.0mm of diameter and SJ105Q type welding flux. Mechanical properties of welding wire deposited metal are that: Rel is equal to 470MPa, Rm is equal to 580MPa, A is equal to 29 percent, Z is equal to 73 percent, and AKV (-40 DEG C) is equal to 172J. The T-shaped joint groove of a submerged arc-welder adopts double-faced single V-shaped symmetric groove with 55 degrees of groove angle and 6mm of root face. The welding technological parameters are that welding current is 620-650A, welding voltage is 29-31V, welding speed is 32-34cm/min, welding line energy is 32-36J/cm ...

High-strength-level Q500qE bridge steel manual welding method

A high-strength-level Q500qE bridge steel manual welding method includes the steps that according to the mechanical properties of base material, ReL >= 500 MPa, Rm >= 650 MPa, the elongation A >= 18%, and -40 DEG C KV2 impact energy >= 120J; thick plates are combined to be 50 mm or 60 mm thick equally to be subjected to manual butt welding, preheating is not performed before the welding, and thermal treatment is not performed after the welding; the groove is a double-faced V-shaped symmetrical groove, the angle of the groove is 60 degrees, and the truncated edge is 2 mm long; welding materials are matched, the strength of welding rods is not lower than 650 MPa, and the diameter phi is 5.0 mm; according to the welding technology, the current is 175 A, the voltage is 27 V, the speed is 16 cm/min, the linear energy is 17 kj/cm, and the baking conditions of the welding rods are 350 DEG C * 1 h; continuous welding is performed on multiple layers in multiple ways, and the interlayer temperature ...

Gas-shielded welding wire for welding high-strength steel

Clock drift compensation method for remote communications

A system may include a buffer, a local clock, and a processor. The buffer may store and output received media information. The local clock may control a rate at which the buffer outputs stored media information. The processor may determine a number of mean time differences between the local clock and a remote clock at a corresponding number of different times. The processor may also detect whether the local clock has drifted relative to the remote clock based on the number of mean time differences, and the processor may adjust the local clock if the local clock has drifted.

Gas-protection welding wire with low alloy and high strength

The invention provides a gas-protection welding wire with low alloy and high strength, comprising the following chemical components in percentage by weight: 0.06%-0.12% of C, 0.30%-0.60% of Si, 1.40%-2.00% of Mn, not more than 0.025% of P, not more than 0.015% of S, 0.30%-0.70% of Cr, 1.0%-1.6% of Ni, 0.28%-0.5% of W, 0.25%-0.50% of Cu, 0.05%-0.15% of Re and the balance of Fe and inevitable impurities. The welding wire has the advantages of favorable welding state of the obtained welding line and thermal-treated toughness, lower cost than that of the traditional welding wire in the same strength level, higher cost performance and strong practicality.

Closed Faraday receiving cup structure

The invention belongs to the technical field of mass spectrometers, and particularly relates to a closed Faraday receiving cup structure. The device comprises a T-shaped ceramic piece, a square ceramic pad, a shielding box, a graphite cup, a slit piece, a positioning ceramic piece, a positioning ceramic column, a suppression grid, a first ceramic tube and a second ceramic tube, a step is arranged in the shielding box, a step is arranged on the side edge of the bottom of the step, and the suppression grid is installed on the step; the side edge of the shielding box is provided with a slit sheet; the graphite cup is installed at the bottom of the shielding box through a T-shaped ceramic piece, and a square ceramic pad is arranged between the graphite cup and the shielding box. A positioning ceramic chip is mounted on the upper surface of the graphite cup, and a positioning ceramic column is arranged on the positioning ceramic chip; a first lead hole and a second lead hole are formed in the ...

High-strength and high-toughness submerged-arc welding wire

The submerged arc welding wire has chemical components in weight percentage of: C 0.05-0.10, Mn 1.60-2.10, Si less than 0.10, Ni 0.30-0.50. Mo 0.20-0.50 and Ti 0.08-0.15. It is used in conjunction with SJ101 flux, and the welding seam metal has tensile strength of 600-700 MPa and impact toughness at -40 deg.c Akv not smaller than 60J and wide line energy suitability range. It has still high strength and toughness after stress eliminating treatment. It is suitable for the submerged arc welding in pressure container, engineering machine, pressure steel pipe, ship, marine platform, bridge, etc.of low alloy steel with corresponding strength.

Additive manufacturing method of silicon carbide ceramic matrix composite material structure/functional part

The invention discloses an additive manufacturing method of a silicon carbide ceramic matrix composite material structure/functional part, which comprises the following steps: weighing silicon carbide, carbon fibers and silica powder, carrying out vacuum drying, carrying out chemical vapor deposition treatment on the carbon fibers to form amorphous carbon on the surface of the carbon fibers, carrying out chemical vapor deposition treatment on the silicon carbide to form a silicon film on the surface of the silicon carbide, uniformly mixing the silica powder, the carbon fibers and the silicon carbide to obtain mixed powder, setting forming parameters and a scanning strategy, outputting the structure/functional part model in an STL format, importing the structure/functional part model into selective laser melting forming equipment, introducing the mixed powder into the selective laser melting forming equipment, and carrying out structure/functional part forming in the atmosphere of shielding ...

High-strength bridge steel-gas protective welding method

The invention discloses a gas-shielded welding method for high-strength bridge steel, which comprises the following steps: (1) the high-strength bridge steel with the tensile strength of between 570 and 650MPa and the thickness of 50 millimeters is adopted, a matched welding material is adopted, wherein the tensile strength of a welding wire is 570-660MPa, and the diameter of the welding wire is 1.2 mm; (2) a gas-shielded welding groove adopts a double V-shaped symmetrical groove, the angle of the groove is 60 DEG, and the truncated edge is 2 millimeters; (3) the welding process specification is as follows: the welding current is 23-27 A, the welding voltage is 23-27 V, the welding speed is 30-29 cm/m, the welding heat input is 12-15 kJ/cm, the argon-rich mixed gas metal arc welding with 20 percent of CO2 and 80 percent of Ar is adopted, the flow of gas is 18-20 L/min, no preheating is performed before welding, and no heat treatment is performed after the welding; and (4) the gas-shielded ...

Anode for electrolysis fluorine preparation

The invention discloses an anode for electrolysis fluorine preparation. The anode for electrolysis fluorine preparation is composed of an anode plate (1), a hanging bracket (2), a flexible conductive material (4) and a clamping plate (3), wherein the conductive material is arranged between the carbon fiber anode plate and the hanging bracket; the clamping plate fixes the carbon fiber anode plate and the flexible conductive material on the hanging bracket through bolts; the flexible conductive material is one or more of sliver foil, a nickel or copper coating, and a graphite gasket; the anode plate is made of carbon fiber material or carbon fiber reinforced carbonaceous material. As the conductive material resistant to fluorine or hydrogen fluoride corrosion is additionally arranged between the hanging bracket and the anode, conductivity between the anode and the hanging bracket is increased, resistance of a contact surface is reduced, the heat amount is reduced, and the phenomenon of burning ...

Distribution transformer three phase current dynamic balance device

Distribution transformer three phase current dynamic balance device. The utility model relates to a middle and low voltage electric current balancing unit especially relates to a three phase current developments balancing unit. The automatic realization balances the low pressure supply network, and the expansibility is strong, the reliability is high, the dynamic compensation precision high. Including modular unit, electric current acquisition unit, remote communications unit and human -computer interaction unit. Modular unit connects in parallel in electric wire netting common connecting point, modular unit includes LCL wave filter, dc -to -ac converter, drive circuit and central controller. Central controller, drive circuit, dc -to -ac converter and LCL wave filter connect gradually. Real -time supervision reflects load condition in real time comprehensively, and the in time accurate feeds back to central controller with the electric current condition, and central controller can in real ...

Method for infecting embryo with lentivirus

The invention provides a method for infecting an embryo with the lentivirus by injecting the lentivirus suspension into the embryo egg space in the 2 embryo cell stage. The study proves that the higher embryo survival rate, the higher embryo development rate and the higher embryo positive rate can be obtained obviously by injecting the lentivirus into the embryo egg space in the 2 embryo cell stage with the auxiliary Piezo method than in the 1 embryo cell stage. The method for infecting the embryo with the lentivirus has high efficiency and low cost and can be widely popularized and applied to the experimental study and the embryo engineering.

Conference server dynamically determining information streams to be received by a conference bridge

Distance measuring instrument for urban and rural planning

The invention discloses a distance measuring instrument for urban and rural planning, and relates to the technical field of urban and rural planning design, a measuring machine is arranged at the top end of measuring equipment, the bottom of the measuring machine is connected to the top surface of a balance assembly, a supporting assembly is connected below the balance assembly, a balance plate is arranged at the top end of the balance assembly, and the bottom surface of the balance plate is connected to the top surface of a stress rod; the outer walls of the limiting blocks are connected between the inner walls of the sleeves, and the bottom surfaces of the sleeves are connected to the top surface of the rotating disc. The supporting legs are driven by the rotating gears to expand outwards or contract inwards, so that when the supporting legs are used outdoors, the stability is high; and meanwhile, the rotating shaft is connected with a driving block installed at the front end of the telescopic ...

Fluorocarbon reaction automatic safety control system and use method thereof

The invention discloses a fluorocarbon reaction automatic safety control system and a use method thereof. The fluorocarbon reaction automatic safety control system comprises a fluorocarbon reaction system and a reaction safety control system. The fluorocarbon reaction system comprises a reactor, a fluorine gas inlet pipe is connected with the top of the reactor, a control valve is arranged on a pipeline, a carbon tetrafluoride gas outlet pipe and an escape pipe are connected with the bottom of the reactor, a control valve is arranged on the pipeline, the reactor is provided with a temperature sensor and a refrigerant jacket, and a refrigerant outlet pipe is provided with a flow sensor; the reaction safety control system comprises a high-temperature alarm chain parking program and a low-flow alarm chain parking program, the high-temperature alarm chain parking program can set a high-temperature alarm value and a high-temperature chain value respectively, and the low-flow alarm chain parking ...

Submerged-arc welding process for welding steel plate with thicknesses larger than 40mm without back gouging

The invention discloses a submerged-arc welding process for welding a steel plate with a thickness larger than 40mm without back gouging. According to the submerged-arc welding process, the steel plate produced through TMCP or microalloying serves as the base material; the shape of a groove is a double-Y-shaped arc chamfer, one end of the arc is perpendicular to a truncated edge, and the other end of the arc is tangent with a groove edge; the diameter of the matched welding wire is 3.0mm-5.0mm; welding parameters include that weld heat input of a first weld joint on the front surface is 15-25J/cm, weld heat input of a first weld joint on the back surface is 40-50J/cm under the conditions without back gouging, and vertical dislocation of truncated edges of two steel plates is not larger than 1.5mm; other procedures are performed according to the conventional submerged-arc welding mode. By means of the submerged-arc welding process, formation of the weld joints is good, no back gouging on ...

Optical functional film capable of improving visual angle of liquid crystal display equipment

The invention belongs to the technical field of optical thin films, and relates to an optical functional film. In order to solve the problem that the visual angle of an existing liquid crystal display is small, the invention provides the optical functional film. The optical functional film sequentially comprises a base material layer, an optical structure layer, a filling bonding layer and a release layer, the refractive index N1 of the optical structure layer is larger than the refractive index N3 of the bonding layer. The surface of the optical structure layer is provided with a plurality of identical microstructures, and the cross section of each microstructure is an isosceles trapezoid. A diffusion layer is arranged on the other surface (lower surface) of the base material layer and comprises an adhesive and scattering particles. The optical functional film can be externally attached to the outer side of a screen of the liquid crystal display equipment to improve the visual angle, has ...

Clock difference compensation for a network

A method and apparatus to perform clock compensation for a jitter buffer are described.

High intensity bridge steel manual welding technique method

The invention provides a manual welding process method of high strength bridge steel. The manual welding process method comprises the steps as follows: (1) the bridge steel with the tensile strength of 570-650MPa and the thickness of 32-60mm is taken as a base material for welding; the matching welding materials are as follows: the tensile strength of a manual electrode is 590-650MPa and the diameter Phi of the electrode is 4.0mm; (2) a groove is an X-shaped symmetrical groove and the groove angle is 60 degrees, the root face is 2mm; (3) the welding process parameters are as follows: the welding current is 165-170A, the welding voltage is 26-25V, the welding speed is 17-15cm/min, the weld line energy is 15-17kJ/cm and the baking system of the electrode is 350 DEG C multiplied by 1h; (4) the manual welding adopts continuous multilayer and multipass welding, the interlayer temperature is controlled within 100-150 DEG C. The manual welding process method of the invention is characterizedby ...

Gas-protection welding wire with low alloy and high strength

The invention provides a gas-protection welding wire with low alloy and high strength, comprising the following chemical components in percentage by weight: 0.06%-0.12% of C, 0.30%-0.60% of Si, 1.40%-2.00% of Mn, not more than 0.025% of P, not more than 0.015% of S, 0.30%-0.70% of Cr, 1.0%-1.6% of Ni, 0.28%-0.5% of W, 0.25%-0.50% of Cu, 0.05%-0.15% of Re and the balance of Fe and inevitable impurities. The welding wire has the advantages of favorable welding state of the obtained welding line and thermal-treated toughness, lower cost than that of the traditional welding wire in the same strength level, higher cost performance and strong practicality.

Latency management for a network

A buffer receives packets of data, and places them in appropriate locations such that they are read out after varying delays. Late arriving packets are assigned a negative delay, and if too many packets are late arriving, the system begins reading out the late arriving packets from a different location in storage, rather than allowing such late arriving packets to be lost.

Automobile sun shield wire harness connector fixing structure

The utility model relates to an automobile sun visor wire harness connector fixing structure which comprises a sun visor body (1), a shaft rod (2) is installed on the sun visor body (1) in a penetrating mode, a wire harness (3) is installed in the shaft rod (2) in a penetrating mode, the end portion of the wire harness (3) is connected with a connector (4), a sun visor fixing support (5) is arranged at the end portion of the shaft rod (2), and the connector (4) is arranged on the sun visor fixing support (5). A clamping structure (6) is arranged on the sun shield fixing support (5), and the connector (4) is clamped on the clamping structure (6). According to the automobile sun shield wire harness connector fixing structure, the clamping structure is additionally arranged on the sun shield fixing support, and the connector is clamped on the sun shield fixing support, so that abnormal sound generated when an automobile bumps can be effectively prevented.

Buried arc welding method for high-strength T shaped contact of bridge steel

The invention mainly solves a submerged arc-welding technology and a welding method of a large-span high-strength bridge steel T-shaped joint by using matched materials without preheating before welding or heat treatment after welding. The technical measures are that the bridge steel with 570-650MPa of tensile strength and 32-50mm of thickness is adopted; the matched materials comprise the welding wires with 5.0mm of diameter and SJ105Q type welding flux. Mechanical properties of welding wire deposited metal are that: Rel is equal to 470MPa, Rm is equal to 580MPa, A is equal to 29 percent, Z is equal to 73 percent, and AKV (-40 centigrade) is equal to 172J. The T-shaped joint groove of a submerged arc-welder adopts double-faced single V-shaped symmetric groove with 55 degrees of groove angle and 6mm of root face. The welding technological parameters are that welding current is 620-650A, welding voltage is 29-31V, welding speed is 32-34cm/min, welding line energy is 32-36J/cm, and welding ...

Supporting plate and display device

In the supporting plate and the display device, the supporting plate is used for supporting a flexible display module, the supporting plate comprises a bending area, the bending area comprises a plurality of hollowed-out patterns arranged in an array mode, a connecting part is arranged between every two adjacent hollowed-out patterns in the same row, and the connecting parts in at least three adjacent rows are arranged in a staggered mode in the column direction.

Submerged arc welding method of bridge steel of different intensity scale

The invention discloses a hidden arc welding method for bridge steel at different levels of strength, which adopts two steel types with different tensile strengths, namely 510-550MPa and 570-650MPa as the subject of hidden arc welding; an X-type asymmetric divided edge is adopted as the divided edge of hidden arc welding; the adopted steel types are 14MnNbq steel and WNQ5709 steel; the yield strength ReL of the 14MnNb steel is 370-415MPa, the tensile strength Rm thereof is 510-550MPa, the unit extension A thereof is 20-35%, and the -40 DEG C AKV impact energy thereof is 120-290J; the yield strength Rel of the WNQ570 steel is 420-560MPa, the tensile strength Rm thereof is 570-650MPa, the unit extension A thereof is 18-27%, and the -40 DEG C AKV impact energy thereof is 120-270J; the thickness of steel plates is 32-60mm; the angle of the divided edge is 60 DEG; and the length of the truncated edge is 6mm. The hidden arc welding method meet the requirements for using the key hidden arc welding ...

High-performance welding wire for hidden arc welding of pipeline steel

Method for guiding north for equipment to be tested by using turntable capable of guiding north

The invention relates to a method for guiding north for equipment to be tested by using a turntable capable of guiding north, which belongs to the technical field of inertial testing. The method comprises the steps of: obtaining a north-orienting reference by using a three-axis testing turntable, and controlling an outer frame of the turntable to rotate horizontally by a control mechanism to point to south and north; installing equipment to be tested on a flat plate of an inner frame of the turntable in the north-orienting direction approximately, and rotating a middle frame of the turntable to rotate vertically by 90 degrees by the control mechanism to ensures that the top surface of the equipment to be tested faces to the west; installing a quadrant on the upper surface of the equipmentto be tested by connecting pieces; reading the angle indicated by the quadrant after the reading of the quadrant is stable; rotating the inner frame of the turntable in a reversed direction by the control ...

Online recycling system for Fischer-Tropsch wax powder production dust

The utility model discloses an online recycling system for Fischer-Tropsch wax powder production dust. The device comprises a dust hood, a centrifugal fan, a wax powder dust removal cloth bag, a wax powder collecting barrel, a pneumatic conveying pipeline and a dust remover, the dust suction hood is arranged at the position, where dust is generated, of a production line and a packaging line. The dust hood is connected with a wax powder dust removal cloth bag, a wax powder collecting barrel is installed at the bottom of the wax powder dust removal cloth bag, the bottom of the wax powder collecting barrel is connected to a pneumatic conveying pipeline through a collecting pipeline, the pneumatic conveying pipeline is connected with a dust remover, and the dust remover is connected to a finished product packaging line. The included angle between the material collecting pipeline and the pneumatic conveying pipeline is smaller than 30 degrees. The system is reasonable in design, reduces thedust ...

APPARATUS AND METHOD FOR ADDING NODES TO A COMPUTING CLUSTER

Embodiments of apparatuses and methods for scaling up cluster nodes are described. In some embodiments, an apparatus may include a detector to detect hardware information of a node to be added to a domain of a computing cluster and a domain application configurator to generate a delta domain template for the node from a common domain template of the computing cluster and information of the domain. In some embodiments, the delta domain template may include information to provision applications required by the domain to the node. Other embodiments may be described and/or claimed. 124.-. (canceled)25. An apparatus , comprising:a detector to detect hardware information of a node to be added to a domain of a computing cluster; anda domain application configurator, coupled to the detector, to generate a delta domain template for the node from a common domain template of the computing cluster and information of the domain, the delta domain template to include information to provision a plurality of applications to the node, the plurality of applications to be offered by nodes of the domain.26125. The apparatus according to claim () , further comprising:a partition configurator, coupled to the detector, to determine a partition plan with a plurality of partitions based on the hardware information, wherein the partition configurator is to determine a partition of the plurality of partitions to install the plurality of applications.27226. The apparatus according to claim () , wherein the computing cluster is a Hadoop cluster , wherein the common domain template includes setup information for a Hadoop distributed file system , and wherein the partition configurator is to determine another partition of the plurality of partitions to install the Hadoop distributed file system.28125. The apparatus according to claim () , further comprising:a provisioning configurator, coupled to the domain application configurator, to facilitate the node to install and configure the plurality of ...

Selecting discard packets in receiver for voice over packet network

A method includes receiving a voice signal in the form of a sequence of data packets, detecting a marker bit in a header of one of the received packets, selecting at least one received packet in response to the detected marker bit, and dropping the selected at least one packet. Other embodiments are described and claimed.

Latency management for a network

A buffer (104) receives packets of data, and places them in appropriate locations (201-218) such that they are read out after varying delays. Late arriving packets are assigned a negative delay, and if too many packets are late arriving, the system begins reading out the late arriving packets from a different location in storage, rather than allowing such late arriving packets to be lost.

Latency management for a network

Clock difference compensation for a network

A method and apparatus to perform clock compensation for a jitter buffer are described.

Communicating tone information in a network

Communicating tone information in a network

Multi-conference stream mixing

A system, an apparatus, and a method for mixing multiple conferencing streams using a single mixer.

System for electrocatalytic conversion of carbon oxides to multicarbon products using a stationary catholyte layer and related process

An electroreduction system for converting carbon oxides selected from CO, CO 2 or any mixture thereof into multicarbon (C 2+ ) products, the system comprising a cathodic compartment having a reactant inlet and comprising a cathode, the cathode comprising a catalyst layer that is contactable with a catholyte solution; an anodic compartment having a product outlet to release the C 2+ products, the anodic compartment comprising an anode and being configured to accommodate a flowing anolyte solution; and a bipolar membrane being positioned between the cathodic compartment and the anodic compartment, the bipolar membrane comprising an interfacial layer defined between a cation-exchange layer and a anion-exchange layer; wherein the cathodic compartment is configured to accommodate a stationary catholyte layer between the catalyst layer of the cathode and the CEL, the stationary catholyte layer comprising the catholyte solution..

Data transport between a media gateway and a media server

A system and method for reducing latency includes receiving at a gateway time division multiplexed data from multiple sender devices (12a-12d), the time division multiplexed data including payloads (36a, 42a, 48a). The method aso includes a generated packet (50) that includes the payloads (36, 42, 48) from the received time division multiplexed date from the multiple sender devices(12a-12d). The method also includes indicating in the generated packet a destination indication (58, 60, 62) associated with at least some of the payloads of the received time division multiplexed data and forwarding the generated packet to a media server.

Communicating tone information in a network

A method and apparatus to communicate tones is described.

Wireless communication mapping apparatus, systems, and methods

Apparatus and systems, as well as methods and articles, may operate to generate a system coverage map from a plurality of geosystemic data points, as well as to change wireless system operational parameters responsive to various parameters associated with the plurality of geosystemic data points.

Method and system for tone detection

A method and system for tone detection is described. The method includes receiving a series of frames having a signal containing a tone and locating a first frame in the series of frames in which there is at least a partial tone. The signal energy of the first frame in which there is at least a partial tone may then be compared to the signal energy of a full tone frame or compared to the signal energy of a frame subsequent to the first frame in the series of frames. A start time of the tone in the signal may then be determined based on the comparison of the signal energies of the first frame and the full tone frame or subsequent frame. An end time of the tone in the signal may be determined by locating a last frame in the series of frames in which there is at least a partial tone and comparing the signal energy of the last frame in which there is at least a partial tone to the signal energy of a full tone frame or the signal energy of a frame preceding the last frame in the series of frames. The duration of the tone signal may be determined based on the determined start time and end time of the tone in the signal.

Use of a porous recycling layer for co2 electroreduction to multicarbon products with high conversion efficiency

Multilayer cathodes for the electrochemical reduction of carbon dioxide as well as membrane electrode assemblies and bipolar membrane electrode assemblies comprising the multilayer cathodes are described. More particularly, the multilayer cathodes for the electrochemical reduction of carbon dioxide comprise a gas diffusion layer, a cathode catalyst layer disposed on the gas diffusion layer, and a permeable carbon dioxide regeneration layer comprising an anion exchange ionomer disposed on the cathode catalyst layer. The uses of the multilayer cathodes, the membrane electrode assemblies and the bipolar membrane electrode assemblies for the production of multicarbon products as well as their processes of manufacturing are also described. Finally, also described are methods for electrochemical production of a multicarbon product using the multilayer cathodes, the membrane electrode assemblies and the bipolar membrane electrode assemblies.

Methods and apparatus for detecting signaling tones in telephony data signal

In some embodiments, a method includes storing a telephony signal data frame in a buffer, detecting a characteristic of a subsequent telephony signal data frame, and determining wheather to analyze the stored telephony signal data frame based at least in part on a result of the detecting of the characteristic of the subsequent telephony signal data frame.

Latenzmanagement für ein netzwerk

Verfahren und system zur tondetektion

Übertragung von toninformationen in einem netzwerk

Use of a porous recycling layer for co2 electroreduction to multicarbon products with high conversion efficiency

Multilayer cathodes for the electrochemical reduction of carbon dioxide as well as membrane electrode assemblies and bipolar membrane electrode assemblies comprising the multilayer cathodes are described. More particularly, the multilayer cathodes for the electrochemical reduction of carbon dioxide comprise a gas diffusion layer, a cathode catalyst layer disposed on the gas diffusion layer, and a permeable carbon dioxide regeneration layer comprising an anion exchange ionomer disposed on the cathode catalyst layer. The uses of the multilayer cathodes, the membrane electrode assemblies and the bipolar membrane electrode assemblies for the production of multicarbon products as well as their processes of manufacturing are also described. Finally, also described are methods for electrochemical production of a multicarbon product using the multilayer cathodes, the membrane electrode assemblies and the bipolar membrane electrode assemblies.

A modified catalyst for operating electrochemical carbon dioxide reduction in a non-alkali acidic medium and related techniques

The disclosure relates to a carbon dioxide reduction catalyst for sustaining electroreduction of carbon dioxide into carbon products in a non-alkali acidic medium, the CO 2 R catalyst comprising: a catalytic layer being electrically conductive and comprising a metal catalyst favouring CO 2 R reactions, and an ionic layer being ionically conductive and deposited onto the catalytic layer, the ionic layer comprising an ionomer, with the ionomer comprising a cationic functional group being covalently bonded to a polymeric backbone of the ionomer and adsorbed on the surface of the catalytic layer.

System for electrocatalytic conversion of carbon oxides to multicarbon products using a stationary catholyte layer and related process

An electroreduction system for converting carbon oxides selected from CO, CO 2 or any mixture thereof into multicarbon (C 2+ ) products, the system comprising a cathodic compartment having a reactant inlet and comprising a cathode, the cathode comprising a catalyst layer that is contactable with a catholyte solution; an anodic compartment having a product outlet to release the C 2+ products, the anodic compartment comprising an anode and being configured to accommodate a flowing anolyte solution; and a bipolar membrane being positioned between the cathodic compartment and the anodic compartment, the bipolar membrane comprising an interfacial layer defined between a cation-exchange layer and a anion-exchange layer; wherein the cathodic compartment is configured to accommodate a stationary catholyte layer between the catalyst layer of the cathode and the CEL, the stationary catholyte layer comprising the catholyte solution..

Clock drift compensation method for remote communications

A system may include a buffer, a local clock, and a processor. The buffer may store and output received media information. The local clock may control a rate at which the buffer outputs stored media information. The processor may determine a number of mean time differences between the local clock and a remote clock at a corresponding number of different times. The processor may also detect whether the local clock has drifted relative to the remote clock based on the number of mean time differences, and the processor may adjust the local clock if the local clock has drifted.

System for electrocatalytic conversion of carbon oxides to multicarbon products using a stationary catholyte layer and related process

An electroreduction system for converting carbon oxides selected from CO, CO2 or any mixture thereof into multicarbon (C2+) products, the system comprising a cathodic compartment having a reactant inlet and comprising a cathode, the cathode comprising a catalyst layer that is contactable with a catholyte solution; an anodic compartment having a product outlet to release the C2+ products, the anodic compartment comprising an anode and being configured to accommodate a flowing anolyte solution; and a bipolar membrane being positioned between the cathodic compartment and the anodic compartment, the bipolar membrane comprising an interfacial layer defined between a cation-exchange layer and a anion-exchange layer; wherein the cathodic compartment is configured to accommodate a stationary catholyte layer between the catalyst layer of the cathode and the CEL, the stationary catholyte layer comprising the catholyte solution..

Optical functional thin film

An optical functional thin film, sequentially comprising a release layer (05), a bonding layer (04), a substrate layer (01), an optical structure layer (02) and a filling layer (03). The optical structure layer (02) refracts light to increase a viewing angle. A surface of the filling layer (03) is provided with a fluctuating structure. The optical functional thin film can be used for being externally attached to the outer side of a screen of a liquid crystal display device, and is used for alleviating the defect of horizontal or vertical brightness viewing angles of existing liquid crystal display devices being narrow (small); and the fluctuation of a color cast value viewing angle curve is relatively low, such that the subjective feeling during the use of the liquid crystal display device to which the optical functional thin film is attached is better.

System for electrocatalytic conversion of carbon oxides to multicarbon products using a stationary catholyte layer and related process

An electroreduction system for converting carbon oxides selected from CO, CO2 or any mixture thereof into multicarbon (C2+) products. the system comprising a cathodic compartment having a reactant inlet and comprising a cathode, the cathode comprising a catalyst layer that is contactable with a catholyte solution; an anodic compartment having a product outlet to release the C2+ products, the anodic compartment comprising an anode and being configured to accommodate a flowing anolyte solution; and a bipolar membrane being positioned between the cathodic compartment and the anodic compartment, the bipolar membrane comprising an interfacial layer defined between a cation-exchange layer and a anion-exchange layer, wherein the cathodic compartment is configured to accommodate a stationary catholyte layer between the catalyst layer of the cathode and the CEL, the stationary catholyte layer comprising the catholyte solution.

Method, apparatus and system for client-based distributed PBX for enterprise telephony

A device includes a processor and a memory connected to the processor. The processor operates to execute a public branch exchange (PBX) processes in the memory that interact together to provide a distributed PBX platform.

Support plate and display device

A support plate ( 001 ) and a display device including the support plate ( 001 ) are provided. The support plate ( 001 ) is used for supporting a flexible display module ( 002 ). The support plate ( 001 ) includes a bending area (BA). The bending area (BA) includes a plurality of hollowed-out patterns ( 101 ) arranged in an array. A connecting portion ( 102 ) is arranged between two adjacent hollowed-out patterns ( 101 ) in the same row. The connecting portions ( 102 ) in at least three adjacent rows are staggered in a column direction, which is beneficial for uniform distribution of bending stress.