手机（M5)

Wet coupling transmission test device of concrete heat

... 本实用新型属于土木工程领域，公开了一种混凝土热湿耦合传输试验装置，包括，温湿度传感器、容器、恒温水浴锅、恒温恒湿箱、饱和盐溶液、防水绝热层，温湿度传感器预埋于待测混凝土试件中，装有饱和盐溶液的容器的容器口处放置了待测混凝土试件后以隔离容器内部与外界，防水绝热层用于包覆待测混凝土试件侧面，恒温水浴锅外部包覆绝热层后放置在恒温恒湿箱中，放置待测混凝土试件的容器位于恒温水浴锅中，待测混凝土试件底面暴露于容器内部，顶面暴露于恒温恒湿箱中。本实用新型装置加工制作简单且试验方法操作便捷，对研究由于混凝土热湿耦合特性带来的混凝土碳化、氯盐侵蚀等问题具有重要意义。 ...

Method, system and device for controlling color of LED and method for controlling color of LED by wireless earphone

The invention discloses an LED color control method, system and device and a wireless earphone LED color control method, and the method comprises the steps: a terminal obtains a target picture provided by a user, and carries out the color clustering and extraction processing of the target picture, and obtains an extracted color; selecting the closest display color to obtain the color capable of being displayed by the wireless earphone; processing the color capable of being displayed by the wireless earphone through a preset color selection model to obtain an optimal color display scheme; and the terminal sends the optimal display color scheme to the wireless earphone, and controls an LED lamp bead module of the wireless earphone to display a corresponding color. Through the method, the system and the device provided by the invention, a user can select colors according to own preferences, and the color reflecting the theme color of the photo can be obtained through an algorithm in the photo ...

Fiber-based insulation paper aging detection method, apparatus and device, and storage medium

The invention discloses a fiber-based insulation paper aging detection method, device and equipment and a storage medium, and the method comprises the steps: determining insulation oil soaked with insulation paper in an oil-immersed transformer, the insulation oil containing cellulose formed by the aging of the insulation paper; detecting a first average refractive index of the cellulose in the amorphous state in the insulating oil; detecting a second average refractive index of an I beta crystal in the cellulose in the insulating oil; calculating a third average refractive index of the cellulose according to the first average refractive index and the second average refractive index; and generating the aging degree of the insulation paper according to the third average refractive index. According to the embodiment, the aging degree of the insulation paper is evaluated according to the refractive index of the cellulose in the insulation oil, shutdown of an oil-immersed transformer is not ...

High-voltage circuit breaker energy storage test device

The invention provides a high-voltage circuit breaker energy storage test device, and belongs to the technical field of high-voltage circuit breaker detection. Comprising a power supply circuit and a control circuit, the power supply circuit is connected with a power supply terminal through an energy storage contactor, and the power supply terminal is used for connecting an energy storage motor of a to-be-tested breaker; each power supply wiring terminal is correspondingly provided with a control circuit so as to control the energy storage motor, each control circuit comprises a first pole, a second pole and a change-over switch, a movable contact of the change-over switch is connected with the first pole, and an automatic terminal is connected with the second pole through a normally open contact of a limiting relay and a coil of a corresponding energy storage contactor; the manual end is connected with the second pole through a self-reset switch and a coil of the corresponding energy storage ...

Environment-friendly and energy-saving high-density circuit board production process

The invention discloses a production process of an environment-friendly and energy-saving high-density circuit board. The production process comprises the following steps: step 1, copper layer wiring; step 2, laminating the core plate; step 3, drilling the core board; step 4, removing the protective layer; step 5, ultrasonic cleaning; step 6, drying operation; in the third step, gas needed by plasma is mixed gas of Ar and O2, and the specific mixing ratio is (2-4): 96. Compared with an existing high-density circuit board production process, the method has the advantages that micropores are manufactured in a plasma hole etching mode, the problems that traditional drilling precision is not high and pollution is serious are solved, and the method conforms to the currently advocated energy-saving and environment-friendly production concept; according to the method, the oxidation film is electroplated on the core plate, so that the etching efficiency is improved, repeated etching is not needed ...

Packaging bottle collecting mechanism and quality detection equipment with same

The invention provides a packaging bottle collecting mechanism and quality detection equipment with the packaging bottle collecting mechanism, the packaging bottle collecting mechanism comprises a guide rail, a grabbing assembly, an overturning assembly and a collecting table, the grabbing assembly is slidably connected to the guide rail, and the grabbing assembly comprises a driver, a fixing base and a plurality of suction cups; the overturning assembly comprises an overturning motor, an overturning support and a guide base. The material collecting table is arranged on one side of the overturning assembly and located at the discharging end of the channel. The quality detection equipment comprises a rack, a conveying assembly, a lifting mechanism, a plurality of camera modules and the packaging bottle receiving mechanism, wherein the conveying assembly is used for conveying the packaging bottles; the lifting mechanism is arranged at the bottom of the conveying assembly and comprises a lifting ...

Electronic control relay for intelligent manufacturing equipment

The invention relates to the technical field of electronic control relays, and discloses an electronic control relay for intelligent manufacturing equipment, which comprises a relay main body, the back surface of the relay main body is fixedly connected with a sliding block, one side of the sliding block is provided with a fixed seat, and one side of the sliding block is provided with a first limiting groove. According to the electronic control relay for the intelligent manufacturing equipment, through the arrangement of a protruding piece, a movable block and a shifting rod, when the electronic control relay is used, the relay body and an electric meter can be conveniently connected and disconnected through the arrangement of the protruding piece and a first electrode plate, and a wire can be limited and fixed through the arrangement of a movable rod and a pressing block; the effects that the equipment can be maintained without using tools and the equipment is relatively simple and convenient ...

New energy vehicle fault management method and system

The invention discloses a new energy vehicle fault management method and system, and the method comprises the steps: actively obtaining a fault recognized by a controller of a target vehicle every first preset time, and transmitting the fault; judging whether the detection condition corresponding to the fault is activated or not according to the fault, and if the detection condition corresponding to the fault is activated, sending the state of the fault; the method comprises the following steps: receiving a fault state, timing after the fault state is received, comparing timing time with calibration values in a fault anti-shake parameter table, evaluating the fault state according to a comparison result, and sending an evaluation result, the calibration values comprising a fault confirmation anti-shake calibration value and a fault recovery anti-shake calibration value; and obtaining a fault response measure corresponding to the evaluation result from a fault response table according to ...

High-efficiency printed circuit board production process

The invention discloses a high-efficiency printed circuit board production process, which comprises the following steps of: 1, modularizing a production process; 2, constructing a material management system; 3, confirming an optimal material management scheme; step 4, constructing a process optimization system; 5, producing a circuit board; step 6, process optimization; the specific method for generating the multiple AGV routes comprises the steps that map information is input into different route planning algorithms to obtain the multiple AGV routes, and the map information comprises production island information and storage location information; according to the invention, material transfer is planned through the material management system, and time loss in the transfer process is reduced, so that the production efficiency is improved; defective products are analyzed through the process optimization system, process parameters are automatically optimized, and a good optimization effect ...

Video collection processing method, system and device and readable storage medium

The invention discloses a video collection processing method, system and device and a readable storage medium, and the method comprises the steps: extracting a video at a current time period, and intercepting at least two to-be-processed images; identifying based on a pet identification model to obtain whether a pet is contained or not, and if yes, marking; judging whether the pet in the to-be-processed image has biological characteristics or not based on the specific position; if yes, the movement direction of the pet in the next time period is obtained through the actual position information of the pet at the current moment and the change speed of pet operation, the operation speed and the rotation angle of the image acquisition device are adjusted, and real-time tracking shooting is conducted on the pet; obtaining the number of pets, the running distance of each pet and the area of the pet, and determining the wonderful score of the video in each time period; and carrying out sorting ...

Method and device for detecting perpendicularity of offshore wind generating set based on sight line driving

The invention provides an offshore wind generating set perpendicularity detection method and device based on sight line driving, and relates to the technical field of wind driven generator perpendicularity detection, and the method comprises the steps: obtaining observation data of a fan tower; importing the observation data into data three-dimensional laser point cloud processing software to obtain a semi-integer tower point cloud, and carrying out denoising and homogenization processing on the tower point cloud to obtain point cloud data of the fan tower; slicing the point cloud data at equal intervals, and extracting geometric center coordinates of the circle center; and calculating the verticality of the fan tower according to the geometric center coordinate of the circle center. According to the method, the three-dimensional laser scanning technology is utilized, mass point cloud data can be rapidly, continuously and automatically obtained without contacting the target, the high-precision ...

Sugar-based insulation paper aging detection method, device and equipment and storage medium

The invention discloses a sugar-based insulation paper aging detection method, device and equipment and a storage medium, and the method comprises the steps: detecting the sugar concentration of insulation oil in an oil-immersed transformer, the insulation paper being soaked in the insulation oil; calculating the total content of furfural and sugar in the insulating oil according to the concentration of sugar; detecting the concentration of furfural in the insulating oil in the oil-immersed transformer; removing the interference of furfural in the total content according to the concentration of furfural in the insulating oil to obtain the independent content of sugar; generating the aging degree of the insulation paper according to the independent content of the sugar. According to the embodiment, the aging degree of the insulation paper is evaluated according to the content of sugar in the insulation oil, shutdown of an oil-immersed transformer is not depended on, local power failure of ...

Nicotinamide stress resistant escherichia coli and application thereof

The invention provides nicotinamide stress resistant escherichia coli and application thereof, and belongs to the technical field of microbial engineering. The strain is Escherichia coli AE74, and is preserved in the China Center for Type Culture Collection on December 23, 2022, and the preservation number is CCTCC NO: M 20222059. The strain resistant to nicotinamide (NAM) stress has excellent nicotinamide resistance and high nicotinamide mononucleotide (NMN) yield, on one hand, the strain AE74 has higher NMN yield compared with an original strain under the non-nicotinamide stress condition, on the other hand, the strain AE74 overcomes the problem that the NAM tolerance of the original strain is low, and the NAM tolerance of the original strain is improved. The high survival rate and the high NMN yield can still be kept under the high NAM concentration, and the novel high-NMN-yield strain suitable for industrial production is provided.

Manufacturing method of composite stirrup grid framework

The manufacturing method comprises the steps that S1, the outer surface of a steel wire is coated with a fiber reinforced composite material layer, and transverse stirrups and longitudinal stirrups are manufactured; s2, the transverse stirrups and the longitudinal stirrups are vertically and alternately woven into grids; s3, the grids are subjected to curing forming; and S4, the cured grids surround the stress longitudinal bars by a circle and are fixed. The advantages of light weight, high strength and good corrosion resistance of the ribs made of the fiber reinforced composite materials are fully utilized, the ribs are alternately woven into the grids and finally fixed with the stress longitudinal ribs to form the framework, the material utilization rate is increased, the composite material can be used in a highly corrosive environment, and meanwhile the composite material has the advantages of being simple in production and manufacturing process, low in cost and the like. And factory-like ...

Light-emitting control method and device of wireless earphone, terminal and wireless earphone

The invention discloses a light-emitting control method and device of a wireless earphone, a terminal and the wireless earphone. The method comprises the steps that the terminal receives input of a user; the terminal determines the lighting effect mode of the wireless earphone connected with the terminal according to the input of the user; the terminal determines the color of the lighting effect according to the input of the user; the terminal generates a light control signal of the wireless earphone according to the mode of the lighting effect and the color of the lighting effect; and the terminal sends the light control signal to the wireless earphone to control the wireless earphone to work in a lighting effect mode, and light with a lighting effect color is lightened. According to the invention, the terminal can carry out personalized customization on the mode, the brightness and the color of the lighting effect of the wireless earphone according to the input of the user, so that the ...

Escherichia coli resistant to nicotinamide mononucleotide stress and application thereof

The invention provides escherichia coli resisting nicotinamide mononucleotide stress and application thereof, and belongs to the technical field of microbial engineering. The strain is Escherichia coli ME59, and is preserved in the China Center for Type Culture Collection on December 23, 2022, and the preservation number is CCTCC NO: M 20222060. The strain resistant to nicotinamide mononucleotide (NMN) stress has excellent NMN resistance and high NMN yield, on one hand, under the non-nicotinamide mononucleotide stress condition, the strain ME59 has higher NMN yield compared with an original strain, on the other hand, the strain ME59 overcomes the problem that the NMN tolerance of the original strain is low, and the strain ME59 has good application prospects. The high survival rate and the high NMN yield can still be kept under the high NMN concentration, and the high-yield NMN engineering strain is provided.

Method, system and device for detecting remaining food in pet food bowl and readable storage medium

The invention discloses a pet food bowl remaining food detection method, system and device and a readable storage medium. The method comprises the following steps: cutting and marking each food bowl food picture of a food bowl image data set to obtain a food bowl region data set; performing gray processing on the food bowl area picture to form a gray feature data set; obtaining the maximum area, the median area and the minimum area corresponding to the gray features in the gray image of the food bowl area; identifying the to-be-detected food bowl grain picture based on a food bowl surplus grain detection model to obtain the position and the corresponding area of the surplus grain in the food bowl; the corresponding areas are compared to judge the state of the food in the food bowl, and if the area is close to the minimum area or is the minimum area, it is judged that no food exists. By means of the method, the remaining condition of the remaining food in the food bowl can be rapidly known ...

Device and method for measuring torsional moment of movable cable of whole photoelectric turret

The invention discloses a photoelectric turret complete machine movable cable torsional moment measuring device, the system device comprises a vertical linear motion assembly, a horizontal tension test assembly and a non-telescopic stay wire, the vertical linear motion assembly is used to drive a tension test system to move vertically, and the position of the tension test system aligned with the height of a photoelectric turntable is adjusted to measure the torsional moment of the photoelectric turret complete machine movable cable. A photoelectric turret is manually rotated to a limit position, then one end of a non-telescopic stay wire is connected with a hook of a high-precision digital tension meter, and an adhesive ribbon fixing seat at one end of the stay wire is adhered to the surface of the top of the photoelectric turret. When the photoelectric turret rotates to a limit position, torsional deformation of cables on the left side and the right side in the photoelectric turret is ...

Recombinant escherichia coli for producing NMN and application thereof

The invention discloses recombinant escherichia coli for producing NMN and application of the recombinant escherichia coli, and belongs to the technical field of genetic engineering and biological engineering. According to the invention, nicotinamide phosphoribosyltransferase NAMPT as shown in SEQ ID NO.1, PRPP synthase BaPRS as shown in SEQ ID NO.2 and transporter BMpnuC as shown in SEQ ID NO.3 are expressed in escherichia coli, and a pncC gene, a ushA gene, an nadR gene and a purR gene are knocked out, so that the accumulation amount of NMN in escherichia coli cells is increased. In addition, by optimizing fermentation conditions, NMN can be efficiently accumulated outside cells, 20 g/L or above of NMN can be obtained under a 5L fermentation system, and the method has wide application prospects in the fields of food, medicine, cosmetics, feed, textiles and the like.

Method for activating SMA for multiple times in SMA reinforcing steel beam

The invention discloses a method for activating SMA for multiple times in SMA reinforcement of a steel beam, and belongs to the technical field of constructional engineering.The method comprises the steps that firstly, a strain gauge is installed at the bottom of the midspan of the reinforced steel beam, and a heating device is installed on the SMA; a load is applied to the reinforced steel beam, and the change value of the strain gauge at the bottom of the loaded steel beam is measured according to the loading condition of the reinforced steel beam in the above steps; the SMA is activated by heating through a heating device according to the change condition of the obtained change value of the strain gauge; and repeatedly executing the steps to realize multiple times of activation. According to the method, the characteristic that the SMA can be excited for multiple times to generate recovery stress is utilized, the structure is monitored and evaluated in real time in the whole life cycle ...

Insulation paper aging detection method based on decomposition product and related device

The invention discloses an insulation paper aging detection method based on decomposition products and a related device. The method comprises the following steps: determining at least two decomposition products decomposed due to aging of insulation paper in insulation oil of an oil-immersed transformer; respectively constructing objective functions for all decomposition products under an aging model of the same structure, wherein the objective functions represent the relationship between the index values of the decomposition products in the insulating oil and the aging time of the insulating paper; detecting an index value of each decomposition product in the insulating oil; for each decomposition product, substituting the index value into a target function to calculate the aging time of the insulation paper, and taking the aging time as reference aging time; and fusing the reference aging time corresponding to all decomposition products into the target aging time of the insulation paper ...

Method for calculating fatigue life of rusted steel plate based on three-dimensional point cloud

The invention discloses a method for calculating the fatigue life of a rusted steel plate based on three-dimensional point clouds, and belongs to the technical field of material corrosion.The method comprises the steps that the surface point clouds of a rusted test piece are scanned, the real point clouds are interpolated into a corrosion depth matrix, and a basic crack finite element analysis model without considering the corrosion influence is established in advance; and assigning the corrosion depth matrix to a model surface node to obtain a finite element model with a real corrosion morphology, further calculating a stress intensity factor around a crack, determining a crack development direction, and performing fatigue life prediction by using a Paris related formula. And the model generation method is simple, and the basic crack model can be repeatedly utilized, so that the practical value is relatively high.

New energy vehicle fault management method and system

The invention discloses a new energy automobile fault management method and system. The method specifically comprises the following steps that fault information recognized by all controllers of a whole automobile is collected; setting a fault information latch condition, performing latch control on the flag bit of the fault information, keeping the flag bit of the output fault information unchanged after the latch condition is activated, and changing the flag bit of the output fault information along with the change of the flag bit of the input fault information when the latch condition is not activated; according to the method, fault information is detected, fault response measures corresponding to the fault information are set, and the corresponding fault response measures are triggered according to the flag bit state of the fault information. Respectively setting fault confirmation anti-shake time and fault recovery anti-shake time for the fault information so as to confirm a flag bit ...

Preparation method of graphene aluminum composite material

The invention relates to the field of preparation of graphene-aluminum composite materials, in particular to a preparation method of a graphene-aluminum composite material, which comprises the following steps of: 1, heating and melting an industrial pure aluminum block ingot to 720 DEG C by adopting a preparation device, and stirring an aluminum melt by adopting the preparation device; 2, then, self-made graphene-Cu is continuously added; according to the preparation equipment disclosed by the invention, by arranging the first adjusting mechanism and the second adjusting mechanism, when the temperature of a melt is reduced to be DEG C and the resistance of the stirrers is obviously increased, the first stirrer and the second stirrer rotate and rise, and meanwhile, under the action of the second adjusting mechanism, second stirring blades shrink along the surfaces of the first stirring blades; and meanwhile, the upper stirrer and the lower stirrer continue to stir the molten liquid which ...

Processing method of conductive graphene material

A shearing mechanism comprises a connecting arm and a pressing plate, the connecting arm is fixedly connected to a fixing block, a second rotating groove is formed in one side of the connecting arm, a first rotating rod is rotationally connected into the second rotating groove, a cross rod is fixedly connected to the first rotating rod, and a cutting mechanism is fixedly connected to the cross rod. The first rotating rod is connected with the support through a connecting mechanism, and the connecting mechanism is connected with a fixing plate through a downward pressing mechanism. According to the graphene material machining device, the fixing plate descends by pressing the transverse rod under the action of the connecting mechanism and the downward pressing mechanism, a graphene material is pressed and limited through a pressing plate, and meanwhile, the graphene material is fixed through the fixing plate; and under the action of a pressure spring, a vertical rod and a through hole, the ...

Processing technology for preparing graphene

The invention relates to the technical field of graphene preparation, in particular to a processing technology for preparing graphene, which comprises the following steps: step 1, adding raw materials for preparing graphene into mixing equipment, starting the mixing equipment to rotate slowly, and stirring the raw materials in the mixing equipment; step 2, in the stirring and mixing process, cooling and stirring the raw materials inside through mixing equipment; when raw materials need to be cooled, cooling water is introduced into the annular cylinder from one liquid inlet pipe through an external cooling compressor and enters the rotating shaft and the inner cavity along the annular cylinder, and the raw materials in the mixing cylinder are conveniently cooled and mixed by introducing the cooling water into the inner cavity; and water flow in the inner cavity can be discharged from the position of the rotating shaft on the right side, circulating flowing of cooling water is facilitated ...