147results about How to "Strong transmission ability" patented technology

The invention discloses a luminescent material of a series of fluorene derivatives. A structure of the material is as shown in formula I. The material as shown in formula I is easily dissolved in an organic solvent, is good in heat stability and can be used to prepare a luminescent device in a way of fluid manufacturing procedures such as printing, instilling, coating and printing. An organic electroluminescent device prepared by coating the material has the characteristics that the power efficiency is good, the material utilization rate is high, the manufacturing cost of an OLED device is greatly decreased, and the material synthesis and purification method is simply suitable for mass production, so that the luminescent material is an ideal choice of the organic electroluminescent device luminescent material. Utilizing the organic electroluminescent diode material as a main body material or a doping material in a luminescent layer or independently as a luminescent material or a hole transmission material or an electron transmission material also falls within a protection scope (see the specification).

The invention discloses a base station based air pressure relative measurement method for calculating a precise elevation. The method uses a known elevation value and an air pressure measurement value of a wireless communication network base station and an air pressure measurement value of a point to be measured to calculate the elevation of the point to be measured. In particular, the base station of ground mobile communication network is installed with an air pressure measuring sensor as a relative measurement station. A base station transmission link is used to transfer the measured data to a user; the user terminal is provided with an air pressure sensor chip to measure air pressure value of the terminal, so as to facilitate calculation of a relative elevation of the terminal to an installation location of the base station air pressure sensor by utilizing the corresponding relationship between elevation and air pressure value. Similarly, if temperature values of the base station and the terminal are known, the two temperature measurement values can be used to correct the relationship between elevation and air pressure value to further improve conversion accuracy of elevation calculation. The elevation calculation value of the method of the invention can be substituted into various positioning measurement equations to further improve accuracy of three-dimensional positioning solution of the measurement equations.

The ultrasonic well logging instrument includes well instrument subsystem for sending ultrasonic pulse signal, receiving well wall reflected ultrasonic signal and converting it into electric pulse signal and performing the amplification, filtering and conversion; ground instrument subsystem for providing the well instrument subsystem with proper electric energy, generating sync pulse, receiving the signal from the well instrument subsystem, amplifying and converting the received signal and acquiring correlated data; and computer subsystem connected to the ground instrument subsystem via data lines for comprehensive data acquisition and processing. The present invention is suitable for measurement in small bore well bore with small specific weight slurry, great bore deep well, well bore with great specific weight slurry and well of industrial water.

The invention provides a novel vegetation shallow trench and a method for processing runoff rainwater by using the novel vegetation shallow trench. The novel vegetation shallow trench comprises a vegetation layer and a shallow trench, wherein the shallow trench comprises a shallow trench bottom (1) and a slope (2), and an infiltration / drainage pipe (3) is buried in the shallow trench bottom (1). When surface runoff rainwater (9) enters the shallow trench and flows along the slope, the runoff can be purified through retention, filtering of vegetation (7), absorption and permeation, a part of runoff rainwater accumulated at the shallow trench bottom (1) enters a filter material layer surrounding the infiltration / drainage pipe (3) through infiltration effect, and the filtered runoff rainwater is drained into a receiving water body or other processing facilities through the infiltration / drainage pipe (3). Since the infiltration / drainage pipe (3) is designed at the shallow trench bottom, the novel vegetation shallow trench is remarkably improved in transmission, filtering and infiltration capabilities, has the advantages of small floor space, compact structure and strong contaminant blockage capability, and thus is applicable to a rainwater runoff pollution control system for high-density areas of a city.

An integrated multi-band antenna comprises a first conductor, a second conductor, at least one inductor member, an extension conductor, and a grounding plane. The first conductor and a first branch of the second conductor form a first coupling region. The inductor member is arranged near the first branch. The extension conductor is arranged near a second branch of the second conductor and extends therefrom to form a terminal. The terminal and first conductor form a second coupling region. The first and second coupling regions are arranged on opposite sides of the first conductor. The second branch connects to the grounding plane. The present invention adopts a design incorporating the capacitive coupling of the conductors and the choke of the inductor member, integrates the standard frequency bands of the low-frequency and high-frequency systems of the digital TV to achieve a miniaturized digital TV antenna spanning a wide range of frequency bands.

An elevator includes an elevator car and a counterweight; a first roping between the elevator car and counterweight and including at least one rope; a second roping between the elevator car and counterweight and including at least one rope; and a rope wheel arrangement, having at least one rope wheel, around which the at least one rope of the second roping passes. The longitudinal force transmission capability of the at least one rope of the second roping is based essentially on non-metallic fibers and is a belt-like rope having at least one contoured side provided with guide rib(s) and / or guide groove(s) oriented in the longitudinal direction of the rope, the side being fitted to pass against a contoured circumference of a rope wheel of the rope wheel arrangement, the circumference being provided with guide rib(s) and / or guide groove(s) so as to form a counterpart for the contoured side of the rope.

The invention relates to a cascading semiconductor thermoelectric power generation device cooled by liquid metal, comprising a cascading semiconductor thermoelectric power generation module and a liquid metal radiator positioned at one side of the module, wherein the liquid metal radiator comprises heat conduction plain films directly touching with the low-temperature end of the power generation module and an electromagnetic pump installed in a conduit in the substrate of the electromagnetic pump. The electromagnetic pump is composed of a pair of permanent magnetic sheets laid on the upper surface and the lower surface of the substrate of the electromagnetic pump and a pair of electrode plates installed on the two opposite walls of the conduit in the substrate of the electromagnetic pump. The planes of the electrode plates are vertical to the planes of the permanent magnetic sheets, and the lead wires of the electrode plates are electrically connected with batteries. Flowing liquid metal are filled in the hollow channels in the communicated heat conduction plain films, the conduit in the substrate of the electromagnetic pump and the hollow channel in the heat dissipation substrate of the fin-type radiator. The power generation device is a self-maintenance adaptive type high-efficiency low-grade thermal power generation device without a moving part and has the advantages of simple structure, high reliability, convenient maintenance, low noise, energy saving and environmental protection.

The invention provides an arylamine compound and an organic luminescent device thereof, and relates to the technical field of organic photoelectric materials. The arylamine compound is obtained by connecting substituted or un-substituted carbazole, benzothiophene and a thick derivative of benzofuran onto an arylamine main body, so that with cavity transmission ability is relatively strong, good thermal stability is good, good film-forming property is good and synthesis is simple and easy easy-to to-operate synthesis. The arylamine compound can be applied to the organic luminescent device as acovering layer of or a cavity transmission layer, so that the problem that carrier transmission in the organic luminescent device is unstable and light out-coupling efficiency is low in the organic luminescent device can be effectively solved; and the organic luminescent device has the advantages of being high in luminescent efficiency and long in service life.

The invention provides a pump-driven two-phase circuit device for heat dissipation of a high heat flux electronic device. Heat is collected and transported by using an endothermic process in evaporation and an exothermic process in condensation during a circulation flow process of a working medium. An evaporator for the circuit device comprises micro-channels and fins. In an area of high heat flux, the micro-channels are used to dissipate heat and increase a heat transfer coefficient of a partial area, while in an area of low heat flux, the fins are used. Due to great area difference between the micro-channel area and the fin area in the evaporator, when the working medium in the micro-channels enters the fin area, volume quickly expands and temperature of the working medium reduces, so as to help heat dissipation of the device in the fin area. By using different structures and with little resources, heat dissipation problems of devices with different powers are solved. The pump-driven two-phase circuit device for heat dissipation of the high heat flux electronic device can adapt to heat dissipation of electronic devices with different heat flux densities and can satisfy working requirements of electronic devices with a heat flux density of 50 W / cm<2> or above.

Embodiments of the invention disclose a USB Type-C interface conversion module and system and a transmission connection establishing method. A data signal and a clock signal of a DDC of an HDMI source end are directly output through a crossbar switch, so that the communication with upstream and downstream HDMI equipment can be realized through a direct connection manner, and the instantaneity and reliability of DDC communication are improved; and through intersection, the transmission channel exchange of the data signal and the clock signal of the DDC is realized, and the matching of a port when the insertion direction of the port is different from the insertion direction of a USB Type-C interface is realized. Moreover, through the USB Type-C interface conversion system, conversion of other videos is not required, so that transmission between traditional HDMI equipment can be realized, and higher transmission speed and stronger transmission ability are provided.

The invention provides an all-inorganic perovskite solar cell prepared based on continuous spin-coating, a preparation method of the solar cell and an application of the solar cell. Particularly, electron transport materials are deposited on FTO (functional test objective) or ITO (indium tin oxide) conductive glass to form a uniform mesoporous film, continuous spin-coating of precursor solution ofperovskite materials to form a perovskite layer with excellent crystallinity, and finally, back electrode materials are deposited to assemble the all-inorganic perovskite solar cell. The interface energy level structure of the electron transport materials and the perovskite layer is optimized, and the photoelectric conversion efficiency and stability of the cell are improved. Besides, the solar cell has the advantages of simple preparation method, no hole transport layer, low cost and large improvement space.

The invention discloses a mine video image compression and transmission method. The mine video image compression and transmission method uses a lossless image compression and processing algorithm based on compressed sensing for achieving down hole video signal compressed sampling sparse representation and algorithm reconstruction, compressing video data produced by a video capture end, sending compressed video data to a video receiving end through a wireless interface, decompressing the received video data through the video receiving end and outputting decompressed video data to a display device. The invention further discloses a mine video image compression and transmission apparatus. The apparatus uses a wireless transmission mode, is high in image compression processing and transmission capability, meets specific mine use environment and safety requirements, is applicable to video surveillance and moving object monitoring in a coal mine down hole wireless network environment, effectively improves the down hole video image compression processing and transmission capability, and ensures video signal real-time transmission in mine WSN (Wireless Sensor Network) and Zigbee wireless network environments.

The invention discloses a wideband access system based on an HFC (Hybrid Fiber Coaxial) network, comprising a front-end access system, the HFC network and a terminal access system. The wideband access system is characterized in that the front-end system is provided with a cable forwarder modem termination system (CFMTS) and a channel dispatch controller (CDC); the terminal access system is provided with a cable forwarder modem (CFM) and a transmission multimedia to a user terminal, wherein the CFMTS is connected with an IP (Internet Protocol) backbone network; a mixer, an optical transmitter, a photoelectric converting node, an upper frequency converter, an optical receiver and an uplink allocator are arranged between the CFMTS and the CMF. By improving a network structure, network equipment and the network wideband allocation of the traditional structure, the wideband of an uplink channel is enlarged, the uplink noise brought by an access cable can be blocked off and the transmission capability of the network can be enhanced. The wideband access system provides the function of multiplexing and de-multiplexing video streams of the uplink channel and the downlink channel, ensures the mixed transmission of uplink data, voice and video and meets the requirement of three-network integration while the traditional simulation television, an edge quadrature amplitude modulator (EQAM), a set top box and other equipment are ensured to normally work.

The invention relates to a preparation method of one-dimensional metal molybdenum oxide nanobelt / graphene composite semiconductor material. According to the preparation method, graphene oxide and Na2MoO4.2H2O are used as raw material, and the molybdenum oxide nanobelt / graphene composite material is prepared through a one-step hydrothermal method. According to the preparation method, the technology is simple, the controllability is high, the preparation period is short, the yield is high, the cost is low, and the defects of poor repeatability and unsteady performance in traditional preparation of molybdenum oxide nanobelt / graphene composite material can be overcome. Moreover, according to the invention, the ultrasonically dispersed molybdenum oxide nanobelt / graphene composite material is spread on an interdigital electrode through a simple method, sequentially, a hydrogen-sensitive element with excellent performance is prepared, the response time of the hydrogen-sensitive element to low-concentration hydrogen of 1000ppm (0.1%, volume fraction) hydrogen at room temperature is only 10.6s, and the sensitivity of the hydrogen-sensitive element to low-concentration hydrogen of 1000ppm (0.1%, volume fraction) hydrogen at room temperature is about 95%, so that the hydrogen-sensitive element has the advantages of high sensitivity, quick response and short reply time.

The invention relates to a perovskite photoelectric detector based on a composite electron transport layer. The perovskite photoelectric detector structurally comprises a substrate, a conductive anode, a hole transport layer, a perovskite photoactive layer, a composite electron transport layer, a hole barrier layer and a metal cathode from bottom to top sequentially, wherein the composite electrontransport layer is formed by a mixture of PCBM and gelatin; and the composite electron transport layer comprises 0.1%-6% by mass of gelatin and the balance PCBM. With the adoption of the composite electron transport layer doped with a bioactive material, namely, gelatin, the surface topography of an original PCBM electron transport layer is improved, so that an original mesoporous interface becomes uniform and compact, the device has better water oxygen resistance and anti-ultraviolet capability, the stability of the perovskite photoelectric detector is improved, and the working life is prolonged; besides, the carrier transport capability of the electron transport layer is improved, leakage current in work of devices is reduced, dark current is substantially reduced, and finally, the detection performance of the perovskite photoelectric detector is improved.

The invention pertains to a data transmission method in the optical network communication technology. The invention organically combines optical circuit switching (OCS) and optical burst switching (OBS) based on the original physical topological network, reserves wavelength in each physical link to establish an overflow transmission light path, transmits the discarded data packets of the original OBS due to booking collision into the light path to transmit continuously, accordingly resolving the problem of packet loss due to one time booking collision; most of the data packets in the network operation adopts an OCS mode transmission, and adopts an OBS mode overflow transmission light path to transmit the data packets to destination nodes when the data conveying capacity has a high a burst performance; and can switch back to the OCS mode transmission when the OCS light path is smooth, accordingly can flexibly adjust the transmission modes according to the current state of network and significantly reduce the packet loss rate. The present invention thus not only has high efficiency of OCS but also has flexibility of OBS, and has features of strong transmission capability and adaptability to burst data streams, rapid network transmission, high reliability, no additional optical devices and the like.

The invention discloses a load balancing system and method based on RDMA network card erasure code unloading. The system mainly comprises a sending end module and a receiving end module, the sending end module and the receiving end module are respectively connected with an RDMA network card, and the two RDMA network cards are connected through a plurality of available network transmission paths, wherein the sending end module is used for partitioning data to be sent, calling an erasure code calculation unloading function of the RDMA network cards to carry out erasure code calculation, selecting one of the plurality of available paths for each data block to be sent after coding is completed, and sending the selected data block to be sent, and the receiving end module is used for receiving part of the data blocks through the RDMA network card, calling an erasure code calculation unloading function of the RDMA network card to decode the data blocks, and restoring the original sending datablocks. By utilizing the system, the asymmetry in the data center network can be well handled, the flow in the data center network topology can be balanced as much as possible, and the system and themethod play an important role in improving the sub-bandwidth and the network utilization rate of the data center network and reducing the flow completion time.

The invention discloses a triphenylamine substituted-vinyl modified phenanthroimidazole compound, a preparation method thereof and an application of the compound as an electroluminescent device. The structural general formula of the compound is shown in a formula (I), wherein R is hydrogen or phenyl. According to the invention, excellent characteristics of phenanthroimidazole materials and triphenylamine substituted-vinyl are adopted, meanwhile, a donor and a receptor are connected through the vinyl, and the pi electron ionization region can be effectively improved, so that carrier injection and transmission are more balanced, then fluorescence quantum efficiency is improved, and high-fluorescence quantum efficiency of a solid-state thin film under an aggregation state is achieved; and meanwhile, blue-green light can be efficiently emitted in an organic solvent, and organic luminescent small molecules with good carrier transmission capability and high fluorescence quantum yield under aaggregation state are synthesized. The compound provided by the invention can be used as a luminescent material to be widely applied to organic luminescent devices, in particular to the stable and efficient organic electroluminescent devices.

The invention discloses a pure electric drive unmanned coal pusher. The pure electric drive unmanned coal pusher is used for carrying out stacking work of coal in a coal yard, a UWB positioning module, a UWB positioning base station and a central control room control system are mounted in the coal yard, the pure electric drive unmanned coal pusher comprises an unmanned coal pusher body, an angle sensor, a UWB positioning label, a laser module detection device, a monitoring camera and an ultrasonic radar, the unmanned coal pusher body is provided with a motor driving system, the efficiency of atransmission system is improved, noise generated during running is reduced, due to the variable frequency function, adjustment of motor rotating speed is convenient, a transmission with the giant size is reduced, precise control over the coal pusher speed and power can be achieved, the technical foundation is provided for unmanned driving of the coal pusher, and the unmanned driving safety and reliability can be effectively improved.

A method, a computer-readable medium, and an apparatus may be a base station configured to receive packets from a plurality of User Equipments (UEs), combine a subset of the packets from the plurality of UEs into a combined packet, and broadcast the combined packet from the base station. In some aspects, a UE may be configured to receive a combined packet in a broadcast from a base station, attempt to decode a plurality of packets combined in the combined packet, and transmit an indication to the base station indicating at least one packet in the combined packet for retransmission. In some aspects, a UE may be configured to generate a packet for relay from a base station, and transmit the packet to the base station with an indication indicating whether the base station should broadcast the packet as a single packet along with broadcasting the packet in a combined packet.

A sensor device for a tire, having enhanced transmission capability without disturbing the assembly of a rim to the tire. With itself installed in the tire, the sensor device detects information inside the tire and transmits the result to the outside. The sensor device has a case for receiving an electronic component and an antenna electrically connected to the electronic component and extended to the outside of the case. The fore-end portion of the antenna is made to be displaceable outwardly in the tire radial direction by centrifugal force generated in the rotation of the tire.

The invention discloses a digital FM broadcast based clock synchronization method. The method comprises that an FM broadcast receiver receives radio data broadcast signals broadcast by an FM broadcast transmitter which is synchronized with standard time; the FM broadcast receiver obtains time synchronization signals in the radio data broadcast signals by demodulation; the FM broadcast receiver obtains local time information of the received time synchronization signals; and according to local position information, the time synchronization signals and local time information of the FM broadcast receiver, time and frequency of a local clock of the FM broadcast receiver are synchronized. The invention also discloses the FM broadcast receiver. Thus, clock of a pseudo-satellite system or a pseudo-satellite similar system is synchronized via FM broadcast, the FM broadcast transmitter transmits standard time to the corresponding FM broadcast receiver via the FM frequency range, and the technical problem that clock synchronization of the pseudo-satellite system or the pseudo-satellite similar system relies on satellite navigation excessively is solved.

The invention relates to the technical field of composite material preparation, in particular to a SiOC composite negative electrode material for assembling a lithium ion battery negative electrode and a preparation method of the SiOC composite negative electrode material. The preparation method comprises the steps of firstly, obtaining porous SiOC ceramic powder by preparation of wood powder andsolid polysiloxane; secondly, combining the porous SiOC ceramic powder with graphene oxide; and thirdly, preparing a porous SiOC / graphene composite material by employing a thermal reduction method. Aporous template comes from the wood powder and also can come from bagasse, straw, tobacco stalk and the like, and the problem of waste recycling can be solved; moreover, a large amount of negative charges exist on a surface of graphene oxide, a graphene oxide / SiOC composite material with an ordered structure can be formed, and a porous-passage composite negative electrode material can be obtainedafter thermal reduction; and by the porous structure of the composite material, the volume change of SiOC during the charge-discharge process of a lithium ion battery can be reduced, meanwhile, the conductivity of the composite material is improved, and the defects of irreversible capacity loss and voltage lagging of SiOC can be effectively overcome.

The invention discloses an OLED (Organic Light Emitting Diode) device working under a low voltage, which comprises a charge transport layer. The charge transport layer comprises an electronic transport layer and a hole transport layer; the charge transport layer is formed by a plurality of layers of structures comprising a charge compounding interface and a charge separation interface; the thickness of each layer of structure in all layers of structures of the charge transport layer is less than the coulomb capture radius of charges. According to the OLED device working under the low voltage, which is disclosed by the invention, the charge transport layer adopts a plurality of layers of structures; the charge compounding interface and the charge separation interface are formed among all the layers of structures; and between the charge compounding interface and the charge separation interface, due to the action of a coulomb force of the charges, the transport capacity of the charges is very strong, so that charge transport is promoted. In the OLED device working under the low voltage, which is disclosed by the invention, the charge transport layer has very high charge transfer rate (1*10<-3> to 1*10<-1>cm / Vs) and the working voltage of the device can be effectively reduced.

An elevator includes a hoistway, an elevator car and a counterweight vertically movable in the hoistway, a drive machine including a drive sheave, a roping including one or more ropes between the elevator car and the counterweight and passing around the drive sheave and suspending the elevator car and the counterweight. The drive sheave is positioned in the hoistway space between a hoistway wall and the vertical projection of the car, the drive sheave rotation plane being at least substantially parallel to the hoistway wall. The rope(s) is / are belt-like, each including at least one force transmission parts for transmitting force in the longitudinal direction of the rope, which force transmission part is made of composite material including reinforcing fibers in a polymer matrix. The reinforcing fibers are carbon fibers, and the force transmission part has width larger than thickness thereof as measured in width-direction of the rope.

The invention provides an organic electro-luminescent material and an organic light emitting device thereof, relating to the technical field of organic photoelectric materials. The organic electro-luminescent material contains fluorene that is different from common 9, 9-diphenylfluorene or 9, 9-dimethylfluorene. The compound of the invention has a smaller conjugate scope, and has a higher tripletstate energy level and relatively higher carrier transport capacity. Due to induction of a rigid structure, glass transition temperature of a compound is improved effectively. The organic electro-luminescent material can be applied to organic light emitting devices, and is particularly used as a main material in a light emitting layer, so that technical problems such as low light emitting efficiency, high drive voltage and other poor light emitting performance of the organic photoelectric materials in the prior art are solved, the lowest drive voltage is 3.6V, and the light emitting efficiencyreaches 40.6cd / A.

An organic electroluminescent component comprises a conductive anode substrate, and a hole injection layer, a hole transmission layer, a luminescent layer, an electron transmission layer and a cathode which are sequentially laminated on an anode layer of the conductive anode substrate, wherein the hole injection layer comprises a first hole injection auxiliary layer laminated on the anode layer and a second hole injection auxiliary layer laminated on the first hole injection auxiliary layer; the first hole injection auxiliary layer is made of copper oxide, cuprous oxide, copper fluoride or cuprous fluoride; the second hole injection auxiliary layer is made of nickel oxide. The organic electroluminescent component uses two hole injection auxiliary layers, so that the hole injection efficiency is improved and further the luminescent efficiency of the organic electroluminescent component is improved. The invention further provides a manufacturing method of the organic electroluminescent component.

The invention relates to an imidazole spiro-containing compound and an application thereof. The compound has a structural general formula represented by chemical formula (1). The compound has the advantages of good stability, high luminous efficiency, long service life, and simplicity in synthesis.

The invention discloses a train management system. The train management system comprises vehicle-mounted equipment, an aerostat, a base station, a satellite and a dispatching center, wherein the vehicle-mounted equipment is used for acquiring train data information, establishing a communication connection with one of three types communication equipment of a aerostat, a base station and a satelliteaccording to the priority from high to low, and sending train data information to communication equipment for establishing communication connection; the aerostat, the base station and the satellite are used for receiving train data information and sending the train data information to the dispatching center; and the dispatching center is used for receiving the train data information and sending the train management information to the communication equipment for establishing communication connection according to the train data information, so that the communication equipment which is in communication connection can send the train management information to the vehicle-mounted equipment. The system comprises three types of communication equipment, namely the aerostat, the base station and the satellite, the vehicle-mounted equipment is preferentially connected with the high-priority communication equipment to transmit train data information, so that the information transmission stabilityis improved, and the safety of the train is guaranteed.