NETWORK SYSTEM AND METHOD FOR DETERMINING NETWORK PATH

Provided is a network system and a method for determining a network path, the network system including a plurality of extension units, each containing dualized basic units and dualized extension Ethernet modules, a first ring network connected by a first basic unit and a plurality of first extension Ethernet modules, and a second ring network connected by a second basic unit and a plurality of second extension Ethernet modules, wherein the first extension Ethernet module or the second extension Ethernet module transmits or receives data along a network path determined by judging, by the first extension Ethernet module or the second extension Ethernet module, if the first ring network is connected to the second extension Ethernet module using an intrinsic number of each extension Ethernet module. 1. A network system , the system comprising: a plurality of extension units , each containing a dualized basic unit and a dualized extension Ethernet module; a first ring network connected by a first basic unit and a plurality of first extension Ethernet modules; and a second ring network connected by a second basic unit and a plurality of second extension Ethernet modules , wherein the first extension Ethernet module transmits or receives data along a network path determined by judging , by the first extension Ethernet module , if the first ring network is connected to the second extension Ethernet module using an intrinsic number of each extension Ethernet module.2. The network system of claim 1 , wherein the first extension Ethernet module determines as a single ring network in which the first ring network and the second ring network are connected claim 1 , if the first ring network and the second extension Ethernet module are connected.3. The network system of claim 1 , wherein the first extension Ethernet module determines as a dual (dualized) ring network in which the first ring network and the second ring network are mutually dependent claim 1 , if the first ring ...

TORQUE CONTROL BOLT FOR HOSE CLAMP

Disclosed is a torque control bolt for a hose clamp, which is configured to transmit a torque from a tool to a fastening bolt of a hose clamp to induce the fastening of the hose clamp, and then to be ruptured to prevent the transmission of torque exceeding a set value so as to prevent the damage of the hose clamp and the hose. The control bolt includes: a rupture bolt with a fastening body to transmit the torque from the tool to a head of the fastening bolt; a coupling unit formed on the head and the rupture bolt and configured to keep the coupling force between the head and the rupture bolt; and a rupture section formed on the rupture bolt and configured to prevent the torque from the tool from being transmitted to the fastening bolt when the torque exceeds the set value. 1. A torque control bolt for a hose clamp , which is configured to transmit a torque from a tool to a fastening bolt of a hose clamp to induce the normal fastening of the hose clamp , and then to be ruptured to prevent the transmission of torque exceeding a set value so as to prevent the damage of the hose clamp and the hose , the control bolt comprising:a rupture bolt with a fastening body to transmit the torque from the tool to a head of the fastening bolt;a coupling unit formed on the head and the rupture bolt and configured to keep the coupling force between the head and the rupture bolt, wherein the coupling unit comprises a male coupler that protrudes from the center of the inner end of the bolt body of the rupture bolt toward the fastening bolt, and a female coupler formed concavely at the center of the head of the fastening bolt to accommodate the male coupler; anda rupture section formed on the rupture bolt and configured to prevent the torque from the tool from being transmitted to the fastening bolt when the torque exceeds the set value, wherein the rupture section comprises a notch formed at a boundary position between the bolt body and the male coupler, and a rupture guide recess ...

LONG CHAIN-BRANCHED ETHYLENE-ALPHA OLEFIN COPOLYMER

The present invention relates to an ethylene-alpha olefin copolymer comprising long chain branches (LCB), while having a narrow molecular weight distribution. The ethylene-alpha olefin copolymer can be prepared by a continuous solution polymerization process using an activated catalyst composition containing a Group 4 transition metal compound having a monocyclopentadienyl ligand, to which a quinoline amino group is introduced. 1. An ethylene 1-butene copolymer havinga) a molecular weight distribution (Mw/Mn) of 1.5 or above and less than 3.5 (1.5≦Mw/Mn<3.5);b) 3 to 5 long chain branches per 1000 carbons along the copolymer main chain; andc) a density of 0.863 to 0.865 g/cc.6. The ethylene 1-butene copolymer according to claim 2 , wherein the catalyst composition comprising the transition metal compound of Formula 1 further comprises one or more of cocatalyst compounds represented by the following Formulae 5 to 7.{'br': None, 'i': 'a', '—[Al(R16)-O]\u2003\u2003[Formula 5]'} {'br': None, 'sub': '3', 'D(R17)\u2003\u2003[Formula 6]'}, 'wherein R16 is each independently selected from the group consisting of a halogen radical, a hydrocarbyl radical having 1 to 20 carbon atoms, and a hydrocarbyl radical having 1 to 20 carbon atoms which is substituted with halogen, a is an integer of 2 or more;'}wherein D is aluminum or boron; {'br': None, 'sup': +', '−', '+[ZA', '−, 'sub': 4', '4, '[L-H][ZA] or [L]]\u2003\u2003[Formula 7]'}, 'R17 is each independently selected from the group consisting of a halogen radical, a hydrocarbyl radical having 1 to 20 carbon atoms, and a hydrocarbyl radical having 1 to 20 carbon atoms which is substituted with halogen;'}wherein L is cationic Lewis acid;H is a hydrogen atom;Z is an element of Group 13 selected from B, Al, Ga, In and Tl; andA is each independently an aryl radical having 6 to 20 carbon atoms, or an alkyl radical having 1 to 20 carbon atoms, wherein at least one hydrogen atom in said aryl radical and alkyl radical is substituted ...

LONG CHAIN-BRANCHED ETHYLENE-ALPHA OLEFIN COPOLYMER

The present invention relates to an ethylene-alpha olefin copolymer comprising long chain branches (LCB), while having a narrow molecular weight distribution. The ethylene-alpha olefin copolymer can be prepared by a continuous solution polymerization process using an activated catalyst composition containing a Group 4 transition metal compound having a monocyclopentadienyl ligand, to which a quinoline amino group is introduced. 1. An ethylene-butene copolymer havinga) a molecular weight distribution (Mw/Mn) of 1.5 or above and less than 3.5 (1.5≦Mw/Mn<3.5);b) 3 to 5 long chain branches per 1000 carbons along the copolymer main chain; andc) a weight-average molecular weight of 50,000 or above and less than 1,000,000.6. The ethylene-butene copolymer according to claim 2 , wherein the catalyst composition comprising the transition metal compound of Formula 1 further comprises one or more of cocatalyst compounds represented by the following Formulae 5 to 7.{'br': None, 'i': 'a', '—[Al(R16)-O]-\u2003\u2003[Formula 5]'} {'br': None, 'sub': '3', 'D(R17)\u2003\u2003[Formula 6]'}, 'wherein R16 is each independently selected from the group consisting of a halogen radical, a hydrocarbyl radical having 1 to 20 carbon atoms, and a hydrocarbyl radical having 1 to 20 carbon atoms which is substituted with halogen, a is an integer of 2 or more;'}wherein D is aluminum or boron; {'br': None, 'sup': +', '−', '+[ZA', {'sub2': '4'}, '−, 'sub': '4', '[L-H][ZA] or [L]]\u2003\u2003[Formula 7]'}, 'R17 is each independently selected from the group consisting of a halogen radical, a hydrocarbyl radical having 1 to 20 carbon atoms, and a hydrocarbyl radical having 1 to 20 carbon atoms which is substituted with halogen;'}wherein L is cationic Lewis acid;H is a hydrogen atom;Z is an element of Group 13 selected from B, Al, Ga, In and Tl; andA is each independently an aryl radical having 6 to 20 carbon atoms, or an alkyl radical having 1 to 20 carbon atoms, wherein at least one hydrogen atom in ...

Polypropylene-based resin composition and automobile parts using the same

The present invention provides a polypropylene-based resin composition, which comprises of a) a polypropylene; b) an ethylene 1-octene copolymer in which r 1 r 2 <1 (herein, r 1 =k 11 /k 12 , r 2 =k 22 /k 21 , k 11 is a growth reaction rate constant when ethylene is added to a growth chain in which an end active site is ethylene, k 12 is a growth reaction rate constant when octene is added to a growth chain in which an end active site is ethylene, k 22 is a growth reaction rate constant when octene is added to a growth chain in which an end active site is octene, and k 21 is a growth reaction rate constant when ethylene is added to a growth chain in which an end active site is octene); and c) an inorganic filling agent, and a part for vehicles manufactured by using the same.

Acoustic output device and control method thereof

An acoustic output device and a control method thereof are provided. The acoustic output device includes: at least one first speaker configured to output a first sound range; a plurality of second speakers configured to output a second sound range that is different from the first sound range; a first crossover circuit connected to the first speaker and one of the plurality of second speakers; a second crossover circuit connected to the first speaker and another of the plurality of second speakers; and a processor configured to control the first and second crossover circuits to provide acoustic signals to the first speaker and the plurality of second speakers, wherein a frequency band of an acoustic signal provided to the first speaker connected to the first crossover circuit is at least partially different from a frequency band of an acoustic signal provided to the first speaker connected to the second of crossover circuit, and wherein a frequency band of an acoustic signal provided to the one of the plurality of second speakers connected to the second crossover circuit is at least partially different from a frequency band of an acoustic signal provided to the other of the plurality of second speakers connected to the second of crossover circuit.

SOUND GENERATING APPARATUS AND ELECTRONIC APPARATUS INCLUDING THE SAME

A sound generating apparatus is provided for expanding a mid-range of a slit-firing type speaker system. The sound generating apparatus includes a vibrator, a body part which encloses the vibrator, a path through which the generated sound is transmitted, and a slit formed in a length direction of the body part connected to an end portion of the path and configured to emit the sound. 1. A sound generating apparatus , comprising:a vibrator configured to generate sound by making a diaphragm vibrate through reciprocal motion of a voice coil; anda body part in which the vibrator is disposed, the body part comprising a path formed therein through which the sound generated by the vibrator passes and a slit connected to an end portion of the path, the slit configured to emit the sound generated by the vibrator, andwherein the slit is formed in a length direction of the body part.2. The sound generating apparatus as claimed in claim 1 , wherein the vibrator includes a mid-range sound generator and a high-range sound generator claim 1 , andthe mid-range sound generator includes at least one of a rectangular speaker or an elliptical speaker.3. The sound generating apparatus as claimed in claim 2 , wherein the high-range sound generator is a tweeter.4. The sound generating apparatus as claimed in claim 1 , wherein a shape of the body part is a rectangular shape or an elliptical shape.5. The sound generating apparatus as claimed in claim 1 , wherein the body part is formed so that an area of the slit is maximized and a volume of the path is minimized under a condition in which an intensity of the sound generated in the vibrator is constant.6. The sound generating apparatus as claimed in claim 5 , wherein the volume of the path and the area of the slit are modeled based on a Helmholtz resonator.7. The sound generating apparatus as claimed in claim 1 , wherein the vibrator is formed in one side of the path claim 1 , and an end portion of the vibrator is formed to protrude outward ...

TIE CLAMP

A tie clamp includes: a clamp body formed by bending an elastic metal material having a relatively long length as compared to the width thereof in a circular shape; a male restrainer and a female restrainer formed at the opposite end sides of the clamp body to restrain an object to be restrained; and an ear formed on each of the male restrainer and the female restrainer so that a tool can be used to reduce the diameter of the clamp body to turn the clamp body into a restraint state. 1. A tie clamp comprising:a clamp body formed by bending an elastic metal material having a relatively long length as compared to the width thereof in a circular shape;a male restrainer and a female restrainer formed at the opposite end sides of the clamp body to restrain an object to be restrained; andan ear formed on each of the male restrainer and the female restrainer so that a tool can be used to reduce the diameter of the clamp body to turn the clamp body into a restraint state,wherein the male restrainer comprises an insertion extension having a width smaller than that of the clamp body and extending from the right end clamp body, and one or more upper catch steps formed on the insertion extension to protrude upward, andthe female restrainer comprises a tunnel-shaped guide configured to accommodate the insertion extension at the left end of the clamp body, and a lower catch step formed in the guide to be engaged with the upper catch steps in an intercrossed form so that the insertion extension is prevented from being released.2. The tie clamp as claimed in claim 1 , further comprising:a support that is formed at the left end side of the clamp body to allow the right end portion of the clamp body to be positioned thereon and has a wide width portion configured to allow the clamp body to entirely wrap the outer circumferential surface of the object and to guide the insertion extension to be inserted into the female restrainer.3. The tie clamp as claimed in claim 1 , wherein the ...

LOUDSPEAKER

A loudspeaker includes an enclosure including a resonance chamber and an acoustic emission aperture for communication of the resonance chamber with the outside, and a plurality of speaker units including a first speaker unit arranged in a first direction and a second speaker unit arranged in a second direction, and the plurality of speakers being accommodated in the enclosure in a non-coaxial arrangement. Front slit spaces of the plurality of speaker units are in communication with the resonance chamber. 1. A loudspeaker comprising:an enclosure including a resonance chamber and a main acoustic emission aperture for communication of the resonance chamber outside the enclosure; anda plurality of speaker units, each speaker unit comprising a speaker, the plurality of speaker units including a first speaker unit arranged in a first direction and a second speaker unit arranged in a second direction, the plurality of speaker units being accommodated in the enclosure in a non-coaxial arrangement,wherein front slit spaces of the plurality of speaker units are in communication with the resonance chamber.2. The loudspeaker of claim 1 , wherein the plurality of speaker units are arranged in a non-coaxial force-moment compensation arrangement.3. The loudspeaker of claim 1 , wherein the enclosure comprises:a first baffle in which the first speaker unit is disposed; anda second baffle in which the second speaker unit is disposed,wherein the first baffle and the second baffle form a step with respect to each other in the first direction.4. The loudspeaker of claim 1 , further comprising a duct configured to connect the resonance chamber to the main acoustic emission aperture.5. The loudspeaker of claim 1 , further comprising a passive radiator installed in the main acoustic emission aperture.6. The loudspeaker of claim 1 , further comprising an attenuator arranged in a plurality of communication apertures connecting the front slit spaces and the resonance chamber and configured to ...

Sound output apparatus, display apparatus and method for controlling the same

A sound output apparatus, a display apparatus and a method for controlling the same are provided. The sound output apparatus includes a housing; and at least one speaker provided on a side of the housing, wherein the housing includes an accommodation portion provided with an insertion groove to which the at least one speaker is inserted and mounted, wherein the at least one speaker includes a sound generator configured to generate a sound; and a guide tube that has a cross sectional area that changes from a first end of the guide tube to a second end of the guide tube, and wherein the guide tube receives the generated sound via the first end, and the guide tube includes an outer surface having a plurality of radiation apertures arranged in at least one row.

Audio output apparatus capable of outputting multi channel audio and display apparatus applying the same

According to an exemplary embodiment, a display apparatus includes: a display device configured to display a video data; and a plurality of integrated speakers configured to output a plurality of audio signals in a low-pitched tone band and a middle and high-pitched tone band. The plurality of integrated speakers may each include: a woofer speaker configured to output a first audio signal of the audio signals in the low-pitched tone band; and at least one front speaker which is adjacent to the woofer speaker and configured to output a second audio signal of the audio signals in the middle and high-pitched tone band.

METHOD AND APPARATUS FOR OUTPUTTING SOUND THROUGH SPEAKER

An apparatus including a first speaker configured to output higher-frequency sound from among sound of a channel via at least one slit, and a second speaker configured to output lower-frequency sound from among the sound of the channel via at least one other slit. The at least one slit may have a thickness that is less than a wavelength of sound emitted. 1. A speaker apparatus comprising:a first speaker configured to output higher-frequency sound from among sound of a channel via at least one slit; anda second speaker configured to output lower-frequency sound from among the sound of the channel via at least one other slit.2. The speaker apparatus of claim 1 , wherein each slit has a thickness that is less than a wavelength of sound emitted.3. The speaker apparatus of claim 1 , wherein the first speaker and the second speaker are further configured to output sound of different channels claim 1 , respectively claim 1 , according to each location of the first and second speakers.4. The speaker apparatus of claim 1 , further comprising a sensor configured to sense a position of a user claim 1 ,wherein the first and second speakers are configured to output sound by being moved according to the sensed position of the user, or the apparatus is configured to output sound via a slit that is adjacent to the sensed position of the user.5. The speaker apparatus of claim 1 , further comprising a display for displaying an image claim 1 ,wherein the first and second speakers are configured to output sound related to the displayed image.6. The speaker apparatus of claim 5 , further comprising a flat panel speaker configured to output sound at a location on the image displayed on the display at which the sound is generated using bending waves.7. The speaker apparatus of claim 6 , wherein the flat panel speaker is configured to output a haptic effect using the bending waves.8. The speaker apparatus of claim 1 , further comprising at least two plates that are configured to slide in a ...

PLANAR MAGNET SPEAKER

A planar magnet speaker with excellent sound reproduction in a low frequency range and capable of providing a plurality of input controls includes a first magnet member, a second magnet member, a membrane including at least one wire formed between the first magnet member and the second magnet member, and a support frame. 1. A planar magnet speaker comprising:a first magnet member comprising a plurality of first magnets, the plurality of first magnets being concentrically disposed;a second magnet member spaced apart from the first magnet member and comprising a plurality of second magnets, the plurality of second magnets being concentrically disposed; anda membrane provided between the first magnet member and the second magnet member and comprising one or more wires,wherein the membrane is configured to generate sound according to a signal applied to the one or more wires.2. The planar magnet speaker of claim 1 , wherein the first magnet member is formed on a first plane claim 1 , andwherein the second magnet member is formed on a second plane, which is parallel to the first plane, and is spaced apart from the first magnet member.3. The planar magnet speaker of claim 1 , further comprising a support frame configured to support the first magnet member claim 1 , the second magnet member claim 1 , and the membrane.4. The planar magnet speaker of claim 1 , wherein each of the plurality of first magnets are arranged at regular intervals from one another.5. The planar magnet speaker of claim 1 , wherein the second magnet member is symmetrically arranged with respect to the first magnet member.6. The planar magnet speaker of claim 1 ,wherein the plurality of first magnets are arranged to have alternate polarities, andwherein the plurality of second magnets are arranged to form a repulsion magnetic field with the plurality of first magnets.7. The planar magnet speaker of claim 1 , wherein signals having different phases are applied to the one or more wires.8. The planar ...

AUDIO OUTPUT APPARATUS CAPABLE OF OUTPUTTING MULTI CHANNEL AUDIO AND DISPLAY APPARATUS APPLYING THE SAME

A display apparatus includes a display device configured to display a video data; and a plurality of integrated speakers configured to output at least one audio signal in a low-pitched tone band and at least one audio signal in a middle and high-pitched tone band. The plurality of integrated speakers may each include: a woofer speaker configured to output a first audio signal among the at least one audio signal in the low-pitched tone band; and at least one front speaker that is adjacent to the woofer speaker and configured to output a second audio signal among the at least one audio signal in the middle and high-pitched tone band. 1. A display apparatus , comprising:a display device configured to display video data; anda plurality of integrated speakers configured to output at least one audio signal in a low-pitched tone band and at least one audio signal in a middle and high-pitched tone band, a woofer speaker configured to output a first audio signal among the at least one audio signal in the low-pitched tone band; and', 'at least one front speaker that is adjacent to the woofer speaker and is configured to output a second audio signal among the at least one audio signal in the middle and high-pitched tone band., 'wherein each integrated speaker among the plurality of integrated speakers comprises2. The display apparatus as claimed in claim 1 , wherein the plurality of integrated speakers are disposed in an end area of the display apparatus andwherein the first audio signal and the second audio signal are directed downward.3. The display apparatus as claimed in claim 1 , wherein a first front speaker among the at least one front speaker included in a first integrated speaker among the plurality of integrated speakers is configured to output a left audio signal of a left channel as the second audio signal claim 1 , andwherein a second front speaker among the at least one front speaker included in a second integrated speaker among the plurality of integrated ...

THREE-DIMENSIONAL SOUND REPRODUCTION METHOD AND DEVICE

According to an aspect of an embodiment, a stereophonic sound reproduction apparatus includes: an input unit for receiving an acoustic signal; a control unit for acquiring an output acoustic signal for generating a virtual sound source for the received acoustic signal; and an output unit for outputting the acquired output acoustic signal by using a front speaker and a side speaker, wherein the control unit generates an attenuation signal that is a signal for attenuating or cancelling an inflow acoustic signal to be directly transferred to an audience in the output acoustic signal output from the side speaker, and the generated output acoustic signal includes the attenuation signal. 1. A stereophonic sound reproduction apparatus comprising:an input unit configured to receive an acoustic signal;a control unit configured to acquire an output acoustic signal for generating a virtual sound source for the received acoustic signal; andan output unit configured to output the acquired output acoustic signal by using a front speaker and a side speaker,wherein the control unit is further configured to generates an attenuation signal that is a signal for attenuating or cancelling an inflow acoustic signal to be directly transferred to an audience in the output acoustic signal output from the side speaker, andthe output acoustic signal output from the front speaker comprises the attenuation signal.2. The stereophonic sound reproduction apparatus of claim 1 , wherein the side speaker comprises a left speaker and a right speaker claim 1 ,the control unit is further configured to generate at least one of a first attenuation signal for attenuating or cancelling, at a location of the audience, a left inflow acoustic signal to be directly transferred to the audience without being reflected from a left wall in an output acoustic signal output from the left speaker and a second attenuation signal for attenuating or cancelling, at the location of the audience, a right inflow acoustic ...

Process For Preparation Of Olefin Polymers

The present invention relates to a preparation method of olefin polymers using a catalyst composition containing a transition metal compound. In detail, the present invention provides a preparation method of olefin polymer using a catalyst composition comprising a transition metal compound, wherein the preparation method comprises introducing a scavenger to a continuous solution polymerization reactor in a specific range of amount to give the olefin polymer with good productivity.

Process for preparation of olefin polymers

The present invention relates to a preparation method of olefin polymers using a catalyst composition containing a transition metal compound. In detail, the present invention provides a preparation method of olefin polymer using a catalyst composition comprising a transition metal compound, wherein the preparation method comprises introducing a scavenger to a continuous solution polymerization reactor in a specific range of amount to give the olefin polymer with good productivity.

Metallic ink, and method for forming of electrode using the same and substrate

Disclosed is a metallic ink, a method of forming electrodes using the metallic ink, and a substrate using the metallic ink. The metallic ink comprises at least one oxide selected from metal oxide nanoparticles and partially polycondensated metal oxides having a size of 100 nm or less, and metal nanoparticles having a size of 100 nm or less. The oxides and the metal nanoparticles are dispersed as isolated ultrafine particles in solvent. The method comprises patterning the ink using an inkjet printer to form a conductive wire. The substrate is produced through the method. It is thereby possible to conduct patterning using an inkjet printer, and adhesive power to substrates is improved. The metallic ink is useful to produce electrodes of various panels, such as PDPs.

Ethylene α-olefin copolymer

The present invention relates to an ethylene α-olefin copolymer having a narrower molecular weight distribution, and a uniform distribution of comonomer. The ethylene α-olefin copolymer according to the present invention has a uniform comonomer distribution and exhibits a lower density in the same comonomer content, unlike conventional ethylene copolymers having a random or blocky comonomer distribution.

Long chain-branched ethylene-alpha olefin copolymer

The present invention relates to an ethylene-alpha olefin copolymer comprising long chain branches (LCB), while having a narrow molecular weight distribution. The ethylene-alpha olefin copolymer can be prepared by a continuous solution polymerization process using an activated catalyst composition containing a Group 4 transition metal compound having a monocyclopentadienyl ligand, to which a quinoline amino group is introduced.

Long chain-branched ethylene-alpha olefin copolymer

The present invention relates to an ethylene-alpha olefin copolymer comprising long chain branches (LCB), while having a narrow molecular weight distribution. The ethylene-alpha olefin copolymer can be prepared by a continuous solution polymerization process using an activated catalyst composition containing a Group 4 transition metal compound having a monocyclopentadienyl ligand, to which a quinoline amino group is introduced.

Long chain-branched ethylene-alpha olefin copolymer

The present invention relates to an ethylene-alpha olefin copolymer comprising long chain branches (LCB), while having a narrow molecular weight distribution. The ethylene-alpha olefin copolymer can be prepared by a continuous solution polymerization process using an activated catalyst composition containing a Group 4 transition metal compound having a monocyclopentadienyl ligand, to which a quinoline amino group is introduced.

Long chain-branched ethylene-alpha olefin copolymer

The present invention relates to an ethylene-alpha olefin copolymer comprising long chain branches (LCB), while having a narrow molecular weight distribution. The ethylene-alpha olefin copolymer can be prepared by a continuous solution polymerization process using an activated catalyst composition containing a Group 4 transition metal compound having a monocyclopentadienyl ligand, to which a quinoline amino group is introduced.

Long chain-branched ethylene-alpha olefin copolymer

Long chain-branched ethylene-alpha olefin copolymer

The present invention relates to an ethylene-alpha olefin copolymer comprising long chain branches (LCB), while having a narrow molecular weight distribution. The ethylene-alpha olefin copolymer can be prepared by a continuous solution polymerization process using an activated catalyst composition containing a Group 4 transition metal compound having a monocy-clopentadienyl ligand, to which a quinoline amino group is introduced.

Method and apparatus for outputting sound through speaker

An apparatus including a first speaker configured to output higher-frequency sound from among sound of a channel via at least one slit, and a second speaker configured to output lower-frequency sound from among the sound of the channel via at least one other slit. The at least one slit may have a thickness that is less than a wavelength of sound emitted.

Switching device of dual-port ethernet system

Long chain-branched ethylene-1-butene copolymer

Method for producing filter used in gas generating apparatus of car airbag

The present invention relates to a filter used in a gas generating apparatus of a car airbag. The car airbag is equipped with a gas generating apparatus for generating high temperature and high pressure, in which gunpowder is exploded by ignition of an igniter, by which a gas generating agent is burned. By combustion of a gas generating agent, a high temperature and high pressure gas is generated, which should be cooled down to be suitable for expansion of an airbag while impurities contained in the gas are removed. The present invention relates to a filter prepared by sintering a perforate plate with metal powder prepared by processing machining chips to meet the foregoing requirements. The filter according to the present invention is prepared by preparing a perforated plate in a cylinder form by uniformly forming holes of 1 to 8 mm on a metal plate using a frame mold and rolling up the plate, preparing metal powder of 20 to 50 mesh by processing machining chips, placing the perforated plate in a molder and vibration packing the metal powder to be uniformly distributed, and sintering the metal powder at 1000 to 1350°C for 15 to 120 minutes.

Multilayer polymer electroluminescent device comprising water-soluble polymer layer containing cations and method for fabricating the same

A polymer electroluminescent device is provided. The device includes an anode, a light-emitting layer, a cation-containing water-soluble polymer layer and a cathode formed in this order on a substrate wherein the cation-containing water-soluble polymer layer is formed by wet coating. The cation-containing water-soluble polymer layer as a secondary thin film layer is not dissolved in a solvent for the formation of the underlying light-emitting layer to prevent intermixing between the two layers, thereby enabling the formation of a multilayer structure by wet coating. In addition, the cation-containing water-soluble polymer layer attracts electrons injection from the cathode by an attractive Coulomb force to effectively increase the mobility of the electrons while blocking high-mobility holes from the anode at an interface between the light-emitting layer and the water-soluble layer. Further provided is a method for fabricating the electroluminescent device.

Motor-driven jumping apparatus

The object of this invention is to provide a motor-driven jumping apparatus having a two-cycle engine. In this apparatus, the two-cycle engine (100) compresses, ignites and explodes a gas mixture by the weight of a user, thus generating an expansion force for repeatedly and regularly bounding on a support surface. This jumping apparatus has a cylinder (110) with a piston (120). A piston rod (130) extends from the piston (120) to the outside of the cylinder (110), and is normally biased downward by a compression coil spring (132). A suction unit (140), an exhaust unit (150) and an ignition unit (160) are provided on the cylinder (110) for sucking, exhausting and igniting the gas mixture during operation of the two-cycle engine (100). A frame (200) is integrated with the cylinder (110), and has both a handle (210) and a foothold (220) for allowing a user to ride and control the jumping apparatus.

Loudspeaker

A loudspeaker includes an enclosure (10) including a resonance chamber (90) and an acoustic emission aperture (20) for communication of the resonance chamber (90) with the outside, and a plurality of speaker units (31-34) including a first speaker unit (30a) arranged in a first direction and a second speaker unit (30b) arranged in a second direction, and the plurality of speaker units (31-34) being accommodated in the enclosure (10) in a non-coaxial arrangement. Front slit spaces (51-54) of the plurality of speaker units (31-34) are in communication with the resonance chamber (90).

Metallic ink, and method for forming of electrode using the same and substrate

Disclosed is a metallic ink, a method of forming electrodes using the metallic ink, and a substrate using the metallic ink. The metallic ink comprises at least one oxide selected from metal oxide nanoparticles and partially polycondensated metal oxides having a size of 100 nm or less, and metal nanoparticles having a size of 100 nm or less. The oxides and the metal nanoparticles are dispersed as isolated ultrafine particles in solvent. The method comprises patterning the ink using an inkjet printer to form a conductive wire. The substrate is produced through the method. It is thereby possible to conduct patterning using an inkjet printer, and adhesive power to substrates is improved. The metallic ink is useful to produce electrodes of various panels, such as PDPs.

Copper alloys for integrated circuit leads

The invention provides copper-nickel alloy having high strength and high conductivity for lead conductor materials and/or lead frames for transistors, integrated circuits, and the like. The alloy comprises copper and from 0.05 to 3.0% by weight nickel; from 0.01 to 1.0% by weight silicon; and from 0.01 to 0.1% by weight phosphorus. In a preferred embodiment 0.01 to 3% by weight % of iron is also added. An improved method is provided for fabricating the alloy according to a specific series and sequence of steps, including steps at specific conditions and for specific times, for providing precipitation hardening.

Metallic Ink, and Method for Forming of Electrode Using the Same and Substrate

Disclosed is a metallic ink, a method of forming electrodes using the metallic ink, and a substrate using the metallic ink. The metallic ink comprises at least one oxide selected from metal oxide nanoparticles and partially polycondensated metal oxides having a size of 100 nm or less, and metal nanoparticles having a size of 100 nm or less. The oxides and the metal nanoparticles are dispersed as isolated ultrafine particles in solvent. The method comprises patterning the ink using an inkjet printer to form a conductive wire. The substrate is produced through the method. It is thereby possible to conduct patterning using an inkjet printer, and adhesive power to substrates is improved. The metallic ink is useful to produce electrodes of various panels, such as PDPs.

System and method of operating a memory device

Método para produzir polímero de etileno prevendo e controlando a densidade do polímero de etileno em tempo real usando analisador on-line

método para produzir polímero de etileno prevendo e controlando a densidade do polímero de etileno em tempo real usando analisador on-line. a presente invenção refere-se a um método para produzir polímero de etileno prevendo e controlando a densidade do polímero de etileno em tempo real usando analisador on-line. especificamente, a presente invenção refere-se a um método para produzir um polímero tendo uma propriedade desejada medindo propriedades, tais como a densidade de um polímero e um teor de substâncias não reagidas em tempo real on-line em um sistema de reator de polimerização e controlando um teor de matérias-primas injetadas na polimerização a partir daí.

Method for producing ethylene polymer predicting and controlling the density of ethylene polymer in real time using on-line analyzer

The present invention relates to a method for producing ethylene polymer predicting and controlling the density of ethylene polymer in real time using on-ling analyzer. Specifically, the present invention relates to a method for producing a polymer having a desired property by measuring properties such as the density of a polymer and a content of unreacted substances in real time on-line in a polymerization reactor system and controlling a content of raw materials injected into polymerization therefrom.

Method for producing ethylene polymer predicting and controlling the density of ethylene polymer in real time using on-line analyzer

The present invention relates to a method for producing ethylene polymer predicting and controlling the density of ethylene polymer in real time using on-ling analyzer. Specifically, the present invention relates to a method for producing a polymer having a desired property by measuring properties such as the density of a polymer and a content of unreacted substances in real time on-line in a polymerization reactor system and controlling a content of raw materials injected into polymerization therefrom.

Method for generating artificial intelligence model for process control, process control system based on artificial intelligence model, and reactor comprising same

The present invention relates to a method for generating an artificial intelligence model for process control, a process control system based on the artificial intelligence model, and a reactor comprising same, the process control system comprising: an artificial intelligence control model unit (100) including a data storage unit (110) for storing a plurality of pieces of preset reactor process data, a data correction unit (120) for generating training data by removing abnormal values from the stored reactor process data, and a data derivation unit (130) trained with the generated training data so as to derive an optimal reactor input condition for satisfying a reactor operation condition and the physical property value of a product resulting from the reactor; an input unit (200), which obtains data including a reactor target operation condition and a target physical property value of the product resulting from the reactor, so as to provide the data to the artificial intelligence control model unit (100), an optimal reactor input condition for satisfying the reactor target operation condition and the target physical property value of the product, and which controls input into the reactor under the optimal reactor input condition.

Semiconductor memory devices

A semiconductor memory device comprises a substrate, a first conductive line extending in a first direction on the substrate, a second conductive line extending in a second direction on the first conductive line, a memory cell between the first and the second conductive lines, and a spacer covering a part of a side wall of the memory cell, wherein the memory cell includes a first electrode connected to the first conductive line, a second electrode connected to the second conductive line, and an information storage pattern between the first and second electrodes, wherein the spacer covers a side wall of the information storage pattern and a side wall of the second electrode, but not side walls of the first electrode, and the first electrode is wider than the information storage pattern at a portion on which the first electrode and the information storage pattern contact to each other.

Audio output apparatus capable of outputting multi channel audio and display apparatus applying the same

According to an exemplary embodiment, a display apparatus includes: a display device configured to display a video data; and a plurality of integrated speakers configured to output a plurality of audio signals in a low-pitched tone band and a middle and high-pitched tone band. The plurality of integrated speakers may each include: a woofer speaker configured to output a first audio signal of the audio signals in the low-pitched tone band; and at least one front speaker which is adjacent to the woofer speaker and configured to output a second audio signal of the audio signals in the middle and high-pitched tone band.

マルチチャネルのオーディオ出力が可能なオーディオ出力装置及びそれを適用したディスプレイ装置。

【課題】マルチチャネルのオーディオ出力が可能なオーディオ出力装置及びそれを適用したディスプレイ装置を改善すること。【解決手段】本発明に係るディスプレイ装置は、映像データをディスプレイするディスプレイ部と、低音帯域及び中高音帯域のオーディオ信号を出力する複数の一体型スピーカとを含み、複数の一体型スピーカのそれぞれは、低音帯域のオーディオ信号を出力するウーファスピーカと、ウーファスピーカに隣接して中高音帯域のオーディオ信号を出力する少なくとも１つの前面スピーカとを含む。それにより、本発明は、単一のスピーカを介してマルチチャネルのオーディオ信号を出力することにより、ユーザの聴取位置及びディスプレイ装置と後壁の間の距離によらず低域損失のない高音質の音響を提供することができる。【選択図】 図６

Audio output apparatus capable of outputting multi channel audio and display apparatus applying the same

A display apparatus includes a display device configured to display a video data; and a plurality of integrated speakers configured to output at least one audio signal in a low-pitched tone band and at least one audio signal in a middle and high-pitched tone band. The plurality of integrated speakers may each include: a woofer speaker configured to output a first audio signal among the at least one audio signal in the low-pitched tone band; and at least one front speaker that is adjacent to the woofer speaker and configured to output a second audio signal among the at least one audio signal in the middle and high-pitched tone band.

Environment-friendly paste for electrode of solar cell and solar cell using the same

System and method of pulse generation

Transition metal compound, catalyst composition including the same, and method for preparing olefin polymer using the same

Provided are a transition metal compound, a catalyst composition including the same, and a method for preparing an olefin polymer using the same. The transition metal compound of the present invention in which a specific functional group is introduced to a specific position has high solubility and catalytic activity, and in the method for preparing an olefin polymer using the transition metal compound, an olefin polymer having excellent physical properties may be easily prepared by a simple process.

Method and apparatus of obtaining position of stationary target

Provided are a method and device for obtaining a position of a stationary target. The method of obtaining a position of a stationary target may include generating a fusion track based on data collected from a radar and data collected from a camera, determining whether the fusion track is in a stationary state, in response to the fusion track being in the stationary state, collecting radar points associated with the fusion track, and obtaining a center point of the stationary target based on the collected radar points.

Planar magnet speaker

A planar magnet speaker with excellent sound reproduction in a low frequency range and capable of providing a plurality of input controls includes a first magnet member, a second magnet member, a membrane including at least one wire formed between the first magnet member and the second magnet member, and a support frame.

Planar magnet speaker

Method for producing ethylene polymer predicting and controlling the density of ethylene polymer in real time using on-line analyzer

The present invention relates to a method for producing ethylene polymer predicting and controlling the density of ethylene polymer in real time using on-ling analyzer. Specifically, the present invention relates to a method for producing a polymer having a desired property by measuring properties such as the density of a polymer and a content of unreacted substances in real time on-line in a polymerization reactor system and controlling a content of raw materials injected into polymerization therefrom.

Sound output apparatus, display apparatus and method for controlling the same

A sound output apparatus, a display apparatus and a method for controlling the same are provided. The sound output apparatus includes a housing; and at least one speaker provided on a side of the housing, wherein the housing includes an accommodation portion provided with an insertion groove to which the at least one speaker is inserted and mounted, wherein the at least one speaker includes a sound generator configured to generate a sound; and a guide tube that has a cross sectional area that changes from a first end of the guide tube to a second end of the guide tube, and wherein the guide tube receives the generated sound via the first end, and the guide tube includes an outer surface having a plurality of radiation apertures arranged in at least one row.

Sound output apparatus, display apparatus and method for controlling the same

Audio output apparatus capable of outputting multi channel audio and display apparatus applying the same

Environment-friendly paste for electrode of solar cell and solar cell using the same

Transition metal compound, catalyst composition including the same, and method for preparing olefin polymer using the same

Provided are a transition metal compound, a catalyst composition including the same, and a method for preparing an olefin polymer using the same. The transition metal compound of the present invention in which a specific functional group is introduced to a specific position has high solubility and catalytic activity, and in the method for preparing an olefin polymer using the transition metal compound, an olefin polymer having excellent physical properties may be easily prepared by a simple process.

Verfahren und vorrichtung zum ermitteln einer position eines stationären ziels

Die vorliegende Offenbarung betrifft ein Verfahren und eine Vorrichtung zum Ermitteln einer Position eines stationären Ziels. Das Verfahren zum Ermitteln einer Position eines stationären Ziels, gemäß einer Ausführungsform der vorliegenden Offenbarung, kann umfassen: Erstellen einer Fusionsspur basierend auf von Radar und Kamera erfassten Daten; Bestimmen, ob die Fusionsspur stationär ist; als Reaktion darauf, dass die Fusionsspur stationär ist, Sammeln von Radarpunkten über die Fusionsspur; und Ermitteln eines Mittelpunkts (center point) des stationären Ziels basierend auf den gesammelten Radarpunkten.

静止したターゲットの位置を取得する方法及び装置

【課題】本開示は、静止したターゲットの位置を取得する方法及び装置に関する。【解決手段】本開示の一実施形態による静止したターゲットの位置を取得する方法は、レーダー及びカメラから収集されたデータに基づいてフュージョントラックを生成し、前記フュージョントラックが静止状態であるか否かを決定し、前記フュージョントラックが静止状態であることに応答して、前記フュージョントラックに関するレーダーポイントを収集し、前記収集されたレーダーポイントに基づいてターゲットの中心点（ｃｅｎｔｅｒ ｐｏｉｎｔ）を取得することを含んでもよい。【選択図】図９

Planar magnet speaker

A planar magnet speaker with excellent sound reproduction in a low frequency range and capable of providing a plurality of input controls includes a first magnet member, a second magnet member, a membrane including at least one wire formed between the first magnet member and the second magnet member, and a support frame.

Planar magnet speaker

Acoustic output device and control method thereof

An acoustic output device and a control method thereof are provided. The acoustic output device includes: at least one first speaker configured to output a first sound range; a plurality of second speakers configured to output a second sound range that is different from the first sound range; a first crossover circuit connected to the first speaker and one of the plurality of second speakers; a second crossover circuit connected to the first speaker and another of the plurality of second speakers; and a processor configured to control the first and second crossover circuits to provide acoustic signals to the first speaker and the plurality of second speakers, wherein a frequency band of an acoustic signal provided to the first speaker connected to the first crossover circuit is at least partially different from a frequency band of an acoustic signal provided to the first speaker connected to the second of crossover circuit, and wherein a frequency band of an acoustic signal provided to the one of the plurality of second speakers connected to the second crossover circuit is at least partially different from a frequency band of an acoustic signal provided to the other of the plurality of second speakers connected to the second of crossover circuit.

Method and apparatus for outputting sound through speaker

An apparatus including a first speaker configured to output higher-frequency sound from among sound of a channel via at least one slit, and a second speaker configured to output lower-frequency sound from among the sound of the channel via at least one other slit. The at least one slit may have a thickness that is less than a wavelength of sound emitted.

Method for generating artificial intelligence model for process control, process control system based on artificial intelligence model, and reactor comprising same

The present invention relates to a method for generating an artificial intelligence model for process control, a process control system based on the artificial intelligence model, and a reactor comprising same, the present invention may easily derive an optimal reactor input condition for achieving the target operation condition of the reactor and the target physical property value of the product by using the AI model.

Method for generating artificial intelligence model for process control, process control system based on artificial intelligence model, and reactor comprising same

The present invention relates to a method for generating an artificial intelligence model for process control, a process control system based on the artificial intelligence model, and a reactor comprising same, the process control system comprising: an artificial intelligence control model unit (100) including a data storage unit (110) for storing a plurality of pieces of preset reactor process data, a data correction unit (120) for generating training data by removing abnormal values from the stored reactor process data, and a data derivation unit (130) trained with the generated training data so as to derive an optimal reactor input condition for satisfying a reactor operation condition and the physical property value of a product resulting from the reactor; an input unit (200), which obtains data including a reactor target operation condition and a target physical property value of the product resulting from the reactor, so as to provide the data to the artificial intelligence control model unit (100); and an output unit (300) which receives, from the artificial intelligence control model unit (100), an optimal reactor input condition for satisfying the reactor target operation condition and the target physical property value of the product, and which controls input into the reactor under the optimal reactor input condition.

Loudspeaker

A loudspeaker includes an enclosure including a resonance chamber and an acoustic emission aperture for communication of the resonance chamber with the outside, and a plurality of speaker units including a first speaker unit arranged in a first direction and a second speaker unit arranged in a second direction, and the plurality of speakers being accommodated in the enclosure in a non-coaxial arrangement. Front slit spaces of the plurality of speaker units are in communication with the resonance chamber.

Sound generating apparatus and electronic apparatus including the same

A sound generating apparatus is provided for expanding a mid-range of a slit-firing type speaker system. The sound generating apparatus includes a vibrator, a body part which encloses the vibrator, a path through which the generated sound is transmitted, and a slit formed in a length direction of the body part connected to an end portion of the path and configured to emit the sound.