40 results about "Carrier rate" patented technology

The invention discloses a method for obtaining sogatella furcifera carrying SRBSDV (southern rice black-streaked dwarf virus) and an application sogatella furcifera. The method for obtaining the sogatella furcifera carrying the SRBSDV, comprises the following steps of: feeding the sogatella furcifera by utilizing rice infecting the SRBSDV or cryopreserved rice diseased plant so that the sogatella furcifera obtains the SRBSDV, transferring the infected sogatella furcifera to a healthy rice to be fed till passing through a circulation period of virus, and detecting the sogatella furcifera by utilizing an RT-PCR (reverse transcription-polymerase chain reaction) technology and a serology method to obtain the sogatella furcifera carrying the SRBSDV, wherein the carrier rate of the sogatella furcifera can reach more than 50% through a manual feeding manner based on the experiment. Through utilizing the method for obtaining the sogatella furcifera carrying the SRBSDV, the obtained sogatella furcifera carrying the SRBSDV can be applied to screening of SRBSDV-resisting monoclonal antibody to carry out a rice inoculation experiment to identify the resistance of the rice, screen disease-resistant variety and provide a service of the breeding for disease resistance. The invention can be further applied to researching mutual relation between the SRBSDV and a vector insect sogatella furcifera and provides powerful theoretical evidence for prevention and treatment on the viruses.

The invention provides a broadband satellite channel simulator with a variable channel model. The broadband satellite channel simulator comprises an analog-signal conversion module, an input signal amplitude adjustment module, a channel delay simulation module, a channel fading simulation module, a channel noise simulation module, an output signal amplitude adjustment module, a digital-analog conversion module and an upper computer control module. According to the channel simulator, problems of narrow input bandwidth, low carrier rate, delayed channel model parameter updating and poor input and output port extensibility of the existing channel simulator can be solved; and physical simulation and communication system verification of all kinds of broadband satellite communication programs can be supported effectively.

A carrier management module in a carrier management system with a first application and a second application is configured to broker carrier rating requests from the second application to the first application through an event interface. The carrier, management module also loads carrier rate modules, programmed to rate items for carriers, so that both applications can call rating routines in the carrier rate modules to rate an item for the associated carrier. Specifically, the carrier management module accesses a system registry of supported carriers to determine whether to dispatch an event to the first application to rate an item for a carrier not supported by the carrier rate module.

A mail processing system that includes dimensional rating capability that provides true length support for carrier rates to prevent improper classification of mail pieces. The mail processing system determines a first dimension, parallel to the path of travel, and a second dimension, transverse to the path of travel, of a mail piece. The first dimension and second dimension are compared to each other to determine which is greater. The greater of the two dimensions is assigned to be the length of the mail piece, regardless of the orientation of the mail piece. The format of the mail piece is then determined based on a comparison of the assigned length and assigned width dimensions to maximum dimensions specified by a format table. Based on the determined format of the mail piece, a delivery fee is then calculated, and an indicium can be generated for the mail piece.

A liquid cargo ship collision experiment apparatus is characterized by including a pool, which is provided with a hit ship model and a hitting ship model inside, wherein the hit ship model is fixed inthe pool through a mooring rope, and a liquid cargo warehouse is arranged inside the hit ship model; the hitting ship model includes separate ship bows, a main ship body and a guide disc, the separate ship bows and the main ship body being connected through bolts; and a pressure sensor and a displacement sensor are arranged in the pool. The beneficial effects are that through a reasonable structural design and a reasonable program design, the hitting ship model is adjustable in tonnage, hitting angle, hitting speed and liquid cargo liquid carrier rate, so the liquid cargo ship collision experiment apparatus can be really applied to the liquid carrier ship manufacturing field, enables a conventional collision research method to be optimized and can improve accuracy of a model experiment.

The invention provides an adaptive transmission method for a broadband satellite communication system. The method comprises the following steps: allocating carrier and time slot resources according to the receiving capacity and the channel conditions of a target terminal, determining a downlink frame structure, extracting to-be-sent business data, framing and sending the business data, then, realizing receiving synchronization by a ground target terminal through a synchronous time slot, analyzing a signaling time slot to obtain a starting business time slot sequence number, an ending business time slot sequence number, a carrier rate, a modulation mode, an encoding mode and a data length, and finally, analyzing a corresponding business time slot according to the carrier rate, the modulation mode, the encoding mode and the data length to obtain transmission data to complete adaptive transmission. Compared with the prior art, a download variable carrier rate transmission method is used to adaptively and dynamically adjust the carrier rate according to the receiving capacity and the channel conditions of the target terminal, so that the problems that fixed carrier transmission is difficult to meet the transmission demands of different target terminals and that the resource utilization rate is low are solved.

The invention discloses a liquid tank sloshing experiment integration device, which is characterized by comprising a control system, a liquid tank, a water inlet system, a water outlet system, and a data acquisition device, wherein the liquid tank is arranged above a motion platform; and the control system is respectively connected with the water inlet system, the water outlet system, the data acquisition device and the motion platform. According to the liquid tank sloshing experiment device with a compact structure, convenient assembly and disassembly, reliable connection, stable operation, strong practicability and realized integration, a motor system, the water inlet and outlet system, the data acquisition device and a high-speed camera are controlled through a single chip microcomputer, motion of three degrees of freedom of the liquid tank is controlled through the motor system, different carrier rates of the liquid tank are controlled through the water inlet and outlet system, pressure and wave heights at different positions are recorded through the data acquisition system, each process is coordinated for operation, the integrated experiment is realized, and as the water inlet and outlet system is connected with an underwater reservoir, circulating water use is realized, and the device is green.

The invention relates to an IV (current-voltage) characteristic simulation test method of a solar cell or solar cell module, which comprises the steps of: 1, optical simulation: figuring out a photon-generated carrier rate; 2, semiconductor element simulation: constructing microunits of the solar cell or solar cell module to obtain J-V characteristic of the microunits; and 3, circuit simulation: serially connecting a plurality of voltage control current sources G to form a simulation circuit of the whole solar cell or module by a resistor Rf and a resistor Rb by using the microunits as the voltage control current sources G, carrying out voltage scanning between a main grid test point and a back electrode of the simulation circuit and tracting for recording a current to obtain the I-V characteristic of the whole solar cell or solar cell module. According to the invention, the complexity of the IV characteristic simulation of the solar cell or solar cell module is effectively solved, and the IV characteristic of the solar cell or solar cell module is tested simply and rapidly.

The invention provides an organic electroluminescent device, a preparation method thereof and a display device, belongs to the field of display technology, and can solve the problems that a present organic electroluminescent device is low in luminescence efficiency and short in service life due to different injection rates of electrons and cavities. The organic electroluminescent device comprises an anode layer, a cathode layer and a luminescent layer between the anode layer and the cathode layer; and the organic electroluminescent device also comprises a carrier rate adjusting layer, and the carrier rate adjusting layer is arranged between the cathode and/or anode layer and the luminescent layer, and is used to adjust the injection rate of carriers.

The invention discloses a dynamic carrier configuration method and an on-board processing system for spray wave beam satellite communication. Firstly, based on an MF-TDMA (multiple frequency time division multiple access) system, the number of carriers and carrier rate are dynamically changed according to user requirements, and time and frequency resources are more flexibly distributed. A transmission frame format suitable for spray wave beam access is given according to communication characteristics of spray wave beams, different carrier configuration modes are adopted at different time slots, and the comprehensive efficiency of spray wave beam service access is improved. Secondly, a dynamic shunt circuit suitable for on-board implementation is given according to the dynamic carrier configuration modes of the spray wave beams and a transmission frame structure, and the system particularly comprises a multilevel shunt processing basic unit, a multi-channel selection and data formattingmodule and a multi-channel digital frequency conversion filtering module. The shunt method can effectively adapt to change of the carrier configuration modes at different time slots, implementation processes are simple, fewer resources are consumed, and the method is applicable to space-borne application.

A method of designing a multi-channel micro-electrical stimulation structure with an equivalent current source that works with an adiabatic baseband based on direct-carrier energy extraction matches with a baseband circuitry designed for energy recovery with the equivalent current source. A controllable pulse width modulation signal at the operating rate near to the carrier rate is used to implement the charge accumulation for the stimulation resolution on the time sequence axis. The design of equivalent current source may reduce the defects caused by a general D/A converter for full-scale stimulation resolution. Further, the adiabatic design is applied, so the redundant power consumption caused at the higher clock rate is minimized and, due to the switching current in the baseband circuitry significantly decreasing, only one voltage regulator circuit is required for the operation of analog and digital circuits that is imbedded into a chip, thereby more design cost being reduced.

The invention discloses a data superframe generation method of an adaptive transmission channel, wherein the data superframe generation method is particularly suitable for actual demodulation application of the adaptive transmission channel with variable frame rate. According to the data superframe generation method, through a technical solution of storing mode information of each information frame of a next data superframe and a starting frame number and an ending frame number which correspond with the same mode information frame in the current signaling frame and adding the frame header and the information frame of a next carrier after the information frame which corresponds with the current carrier rate is assembled when the carrier rate changes, real-time and accurate demodulation and decoding of an adaptive transmission channel with variable frame rate can be realized.

An electronic scale integrally formed within the housing of a piece of office equipment increases a user's work space in a home or business environment. The piece of equipment may be a personal computer or one of its peripheral devices. A mailing system automatically computes postal and/or private carrier rates for items of mail based on weight signals derived from the electronic scale. Since the scale is integrated into the computer, all mailing tasks are performed at a user's desk using the least space possible. The system is performed in accordance with a computer program which steps a user through the postage-computing method using one or more interactive display screens.

The embodiment of the invention provides a resource pool management system and a signal processing method, the filters of links share a computation resource and buffer resource based on the resource pool, so the resource pool management system can be adapted to not only different application scenarios of each carriers rate (bandwidth) in times of supporting mixed modes but also different application scenarios of filtering order of each filter in times of supporting mixed modes, and the resources of the filters can be distributed according to need; each level of filters supporting the mixed mode system shares a multiplier adder and buffer resource, and the unification of resources in one resource pool for dispatching is realized, leading to the maximization of resource utilization; the resource pool management system and the processing method support the parametric configuration, such as the preceding and last stages of links, link parameters and carrier rate, etc., and leads to a higher parametric degree of the carrier structure, and besides, the resource utilization rate is highest and the scalability of the system is improved.

The invention discloses a method for testing and calculation of a satellite communication earth station power reference value. A system transmitting power is affected by factors in multiple aspects such as geographical coverage characteristics of a satellite forwarder, geographical positions of both sides of communication, station size, weather conditions and carrier rates. Especially in an FDMA-DAMA system, control and adjustment of the transmitting power carried out by the system becomes more complex due to characteristics such as dynamic nature and real-time performance of resource allocation. Mainly by designing an improved method of normalized relative power reference value calculation, the method for testing and calculation of the satellite communication earth station power referencevalue greatly reduces the testing amount, enables the test to be more convenient, is wider in application scope as distinguishing of station type is unnecessary, can improve the degree of automationof the satellite communication system and realizes the purpose of rapid networking.

The invention proposes a QPSK baseband recovery system resistant to a large frequency offset, and is used for solving the technical problem that a carrier is locked slowly or cannot be locked when thefrequency offset of an existing system is large. The QPSK baseband recovery system comprises a data sampling module, a carrier rate pre-estimation module, a switch selection module, a low-speed baseband recovery module, a carrier locking detection module, a high-speed baseband recovery module and a timing synchronization judgment output module; the data sampling module receives and samples a modulation signal; the carrier rate pre-estimation module roughly estimates the modulation signal carrier frequency; the low-speed baseband recovery module based on a closed loop and the high-speed baseband recovery module based on an open loop perform baseband data recovery on the sampled data under the control of the switch selection module; the carrier locking detection module detects whether a local carrier of the low-speed baseband recovery module is locked or not; and the timing synchronization decision output module performs timing synchronization and hard decision on the recovered basebanddata to obtain final demodulation data. According to the QPSK baseband recovery system resistant to the large frequency offset provided by the invention, the baseband recovery speed is high and the bit error rate is low.

The invention discloses a method and a device for service establishment. The method comprises that according to a feedback condition of radio carrier establishment information by user equipment (UE), a radio network controller (RNC) determines that service establishment of the UE is failed. A reestablishment method is determined by the RNC according to the feedback condition and the radio carrier establishment information is secondarily sent to the UE. According to the method and the device, when the RNC determines that the service establishment of the UE is failed, the reestablishment method is determined by the RNC according to the feedback condition of the UE, the radio carrier establishment information is secondarily sent to the UE according to the reestablishment method and the service is established so that the problem that in relative technology, service establishment is low in success rate, service establishment carrier rate is improved and user experience is improved.

The invention provides a propagation method of sweet potato seedlings, which belongs to the technical field of rapid propagation. The method comprises the following steps: (1) transplanting the sweetpotato detoxification test-tube seedlings into a greenhouse, culturing the sweet potato detoxification test-tube seedlings for one to seven days, and obtaining a rapid propagation parent plant; (2) when a second new leaf grows on the parent plant, removing the top, performing the rapid propagation culture for 40 to 50 days, and obtaining the rapid propagation seedlings; (3) cutting the rapid propagation seedlings obtained in step (2) into primary rapid propagation seedlings, wherein each primary rapid propagation seedling is a rapid propagation seedling stem comprising one leaf; and (4) performing the cutting culture for the primary rapid propagation seedlings obtained in step (3), and obtaining the propagated sweet potato seedlings. By adopting the propagation method of the invention, thesurvival rate of the propagated sweet potato seedlings is 95.7 to 97.9 percent, the propagation multiplication is 660 to 750, and the virus carrier rate is reduced by 63 to 71 percent.

The image recorder has a carrier section to carry a continuous medium (12) to store images recorded by an image recording section with a given tensile force and at a given speed, a cutting section (20) having a cutting roller (30) and an anvil roller (34) that are arranged in opposition to each other to allow the continuous medium (12) to be cut while rotating at a fixed rotation speed, a carrier section (17) having a pair of nip rollers (18) for carrying while sandwiching the recording medium (12) toward the cutting section (20) and a pair of guiding rollers (22) that are arranged among a pair of nip rollers (18) and the cutting section (20) to guide while sandwiching the recording medium (12) to the cutting section (20), and a control section (25), which performs a control that temporarily stops or decelerates a pair of guiding rollers (22) to temporarily decrease a carrier rate of the recording medium (12) to the cutting section (20), and that guides the recording medium (12) to be able to be cut into a short-cut paper (131) shorter than a normal paper, and starts or accelerates the guiding rollers (22) in a later given timing to guide the recording medium (12) to be able to be cut into a long-cut paper (132) longer than a normal paper.

The invention discloses a resource allocation method with a dynamically-variable modulation coding mode for an MF-TDMA (Multi-Frequency Time Division Multiple Access) satellite communication system. The technical scheme of the method comprises the following three steps: firstly, allocating different link applications to different carriers according to the traffic of each link application; secondly, continuously adjusting the modulation coding mode of each link application to increase the overall system capacity, and determining a time slot needing to be allocated to each link application according to a carrier rate and the modulation coding mode allocated for each link application; lastly, allocating a specific time slot for each link application in the channel structure of the MF-TDMA satellite communication system by adopting a Best-Fit algorithm to finish the entire resource allocation process. Compared with the prior art, the method has the advantages that the system capacity is increased, and the reject rate of the link applications is reduced. Therefore, the resource allocation method has wide application prospects in various current MF-TDMA satellite communication systems.