54results about How to "Amplified equalization" patented technology

Pressure equalization between upper and lower surfaces of PV modules of an array of PV modules can be enhanced in several ways. Air gaps opening into the air volume, defined between the PV modules and the support surface, should be provided between adjacent PV modules and along the periphery of the array. The ratio of this air volume to the total area of the air gaps should be minimized. Peripheral wind deflectors should be used to minimize aerodynamic drag forces on the PV modules. The time to equalize pressure between the upper and lower surfaces of the PV modules should be maintained below, for example, 10-20 milliseconds. The displacement created by wind gusts should be limited to, for example, 2-5 millimeters or less. For inclined PV modules, rear air deflectors are advised for each PV module and side air deflectors are advised for the periphery of the array.

Joint equalization and decoding techniques to eliminate the division operations in the Frequency domain Equalizer (FEQ) of an Orthogonal Frequency Division Modulation (OFDM) receiver by incorporating the magnitude of the channel impulse response estimates into the decision metrics in the decoder. This includes methods for both hard-decision symbol-by-symbol detection and soft-decision decoding using the Viterbi algorithm. Further, Channel State Information (CSI) is incorporated to improve the performance of the receiver. The disclosure also introduces a computationally efficient bit-by-bit piecewise approximation technique incorporating CSI to implement decoder decision metrics. Finally, an efficient implementation technique for multiple receiver antennae using Maximum Ratio Combining (MRC) and Viterbi decoding with CSI is disclosed.

A digital broadcast transmitting and receiving system and a signal processing method thereof that improves the receiving performance of the system. A digital broadcast transmitter includes a randomizer to receive and randomize a data stream into a specified position of which stuff bytes are inserted, a replacement sequence generator to generate known data including a predefined sequence, a stuff-byte exchange unit to insert the known data into the specified position of the data stream into which stuff bytes are inserted, an encoder to encode the data stream output from the stuff-byte exchange unit for an error correction, and a transmission unit to modulate the encoded data stream, RF-convert the modulated data stream and transmit the RF-converted data. The digital broadcast receiving performance is improved even in an inferior multi-path channel by detecting the known data from the received transmission and using the known data for synchronization and equalization in a digital broadcast receiver.

A method of using a minimal surface or a minimal skeleton to make a heat exchanger component is provided. The method comprises the steps of generating a stereolithography file from design data, slicing the stereolithography file into two-dimensional patterns, repeating the two-dimensional patterns sequentially to produce a three-dimensional minimal surface component or minimal skeleton component, and depositing at least one layer of a material having a high thermal conductivity onto a top surface of a base, wherein the deposited material forms either a three-dimensional minimal surface component or a three-dimensional minimal skeleton component. Also provided are the heat exchanger components made by the embodiments of the method using either minimal surfaces or minimal skeletons.

A method of using a minimal surface or a minimal skeleton to make a heat exchanger component is provided. The method comprises the steps of generating a stereolithography file from design data, slicing the stereolithography file into two-dimensional patterns, repeating the two-dimensional patterns sequentially to produce a three-dimensional minimal surface component or minimal skeleton component, and depositing at least one layer of a material having a high thermal conductivity onto a top surface of a base, wherein the deposited material forms either a three-dimensional minimal surface component or a three-dimensional minimal skeleton component. Also provided are the heat exchanger components made by the embodiments of the method using either minimal surfaces or minimal skeletons.

The invention provides a defocus blurred image definition detecting method based on edge strength weight. The defocus blurred image definition detecting method comprises the following steps: firstly, pre-processing an input image, correcting brightness and a contrast ratio through a histogram equalization method, performing Wiener filtering processing on constant power addition noises in a digital camera system, and respectively processing impulse noises and Gaussian noises through a median filter and a Gaussian filter; then, adopting four direction edge gradient operators to detect gradient of each pixel point, eliminating interferences of local bright dark points and isolated noise points according to the detected gradient size, and further processing the residual pixels; comparing direction gradient of the residual pixels with a set threshold value, distinguishing strong edge pixels with relatively large edge gradient values and weak edge pixels with relatively small boundary vicinity gradient values, and respectively endowing different weights; finally, adding up maximum gradient square of all pixels to obtain a definition detected value of the whole image.

A sealing assembly for a cable to apparatus interconnection formed bya plurality of shells adapted to mate together, surrounding the interconnection within an interconnection space. When mated together, the shells forming openings for the cable and the apparatus at an apparatus end and a cable end, respectively. A gasket mounted to each shell along a mating surface between the shells and along the openings environmentally seals the interconnection space. A locking rib projecting inward from the shell(s) may be applied to rotationally interlock a coupling nut of the interconnection with the sealing assembly. In a two shell embodiment, a locking band positioned around an outer diameter of the mated together shells with an end to end retaining means may be used to secure the shells together. Alternatively, if three shells are used, the shells may be hinged together and a retaining means applied to join the unhinged ends together.

Pressure equalization between upper and lower surfaces of PV modules of an array of PV modules can be enhanced in several ways. Air gaps opening into the air volume, defined between the PV modules and the support surface, should be provided between adjacent PV modules and along the periphery of the array. The ratio of this air volume to the total area of the air gaps should be minimized. Peripheral wind deflectors should be used to minimize aerodynamic drag forces on the PV modules. The time to equalize pressure between the upper and lower surfaces of the PV modules should be maintained below, for example, 10-20 milliseconds. The displacement created by wind gusts should be limited to, for example, 2-5 millimeters or less. For inclined PV modules, rear air deflectors are advised for each PV module and side air deflectors are advised for the periphery of the array.

The invention provides a primer set for simultaneously detecting mutation of a plurality of regions of two or more exons of one or more cancer drive genes in a sample on the basis of multiplex PCR (polymerase chain reaction) and high-flux sequencing techniques, a kit comprising the primer set, and a method for amplifying the cancer drive gene or detecting the cancer drive gene by using the primer set and / or kit. The mutation detection result can be used for instructing cancer clinic medication, auxiliary diagnosis or prognosis judgment on certain cancers.

This invention relates to a method for rapidly detecting lily virus by multiplex RT-PCR. The method comprises: (1) synthesizing three pairs of primers of lily symptomless virus (LSV), lily mottle virus (LMoV) and Cucumber mosaic virus (CMV) sequences, and optimizing the concentrations, amplification temperatures, amplification time and cycle time; (2) introducing the three pairs of primers to a same reaction system, and performing PCR reaction. The method can detect CMV, LSV and LmoV simultaneously, and has such advantages as rapid detection, high accuracy, high efficiency, high sensitivity, high specificity.

The invention belongs to the technical field of human nucleic acid in vitro detection, and specifically relates to a PCR (polymerase chain reaction) amplification system for genotyping of three SNP (single-nucleotide polymorphism) loci related to human folic acid metabolism and a detection kit. A complex PCR amplification system comprising three SNP loci and three sample molecular marker sites is firstly designed, the three SNP loci adopt allele-specific primers, the three molecular marker sites adopt length polymorphic primers, and the primers are mutually compatible and can react in the same PCR amplification system. The detection kit comprises a primer composition container, a PCR reaction mother solution container, and a PCR auxiliary solution container, wherein the primer composition container comprises a primer SEQ ID No. 1 to SEQ ID No. 15 composition stock solution. In the case of DNA-free extraction, the three SNP loci are simultaneously amplified and typed by a PCR reaction, so that the cost, manpower and time can be obviously saved, and the working efficiency can be improved.

In a gas mixing system for producing high-precision, continuous streams of mixed gas consisting of a plurality of individually metered gas components, with an individual gas line including a pressure reducing element and, if desired, a precision pressure regulator for each gas component, precision is further improved by providing that each gas line lead to a separate valve which is timed by electronic control means, the valves being connected at the input side via a jointly vented system of lines for pressure equalization, and communicating at the output side via a mixed gas line with a mixing chamber downstream thereof.

A method of monitoring pore pressure, comprises the steps of:(a) providing downhole in a well a sealable container,(b) sealing in the container a sample of fluid at a baseline pressure and a sample of a formation having an initial pore pressure,(c) measuring the change in pressure of the fluid sample, the pressure of the fluid sample and the pore pressure of the formation sample sealed in the container tending to equalize over time, and(d) estimating the initial pore pressure relative to the baseline pressure from the measured change in fluid sample pressure.

The invention provides a DNA amplification method. The DNA amplification method is characterized by comprising the step that a T7 promoter sequence is added to the target DNA tail end. According to the DNA amplification method, amplification can be conducted on DNA smaller than one nanogram or even a single cell genome DNA on the basis of trace DNA; relatively even amplification is achieved through the target DNA containing the T7 promoter sequence; an error produced in the amplification process can be effectively removed.

The invention discloses a service method, a device, a system, a certificate terminal and a medium for conveniently obtaining certificates. The method comprises the following steps: obtaining the identity information of a certificate obtaining person; Judging whether the business application of the card handler is the first application for the certificate according to the identity information of the card handler, if so, sending the video examination request of the card handler to the background service equipment, if not, performing subsequent business application operation; When receiving the consent instruction sent by the background service equipment, accepting the video audit of the card handler; After completing the video audit of the licensing personnel, sending the instructions by thebackground service equipment are received, and if the instructions sent by the background service equipment are the approval application instructions, carrying out the subsequent business applicationoperation. The invention can realize the interconnection of the intelligent certificate handling terminal and the background service equipment, cooperate to realize the seamless connection of the face-to-face meeting and the auditing link, and ensure that the whole business process and the result can comply with the law and be foolproof.

Low inductance power modules for ultra-fast wide-bandgap semiconductor power switching devices are disclosed. Conductive tracks define power buses for a switching topology, e.g. comprising GaN E-HEMTs, with power terminals extending from the power buses through the housing to provide a heatsink-to-busbar distance which meets creepage and clearance requirements. Low-profile, low-inductance terminals for gate and source-sense connections extend from contact areas located adjacent each power switching device to provide for a low inductance gate drive loop, for high di / dt switching. The gate driver board is mounted on the low-profile terminals, inside or outside of the housing, with decoupling capacitors provided on the driver board. For paralleled switches, additional terminals, which are referred to as dynamic performance pins, are provided to the power buses. These pins are configured to provide a low inductance path for high-frequency current and balance inductances of the power commutation loops for each switch.

A synchronous semiconductor memory device has a read data bus for transferring data from a memory cell array to a read amplifier, and a write data bus for transferring data from a write driver to the memory cell array. To control equalization of the read and write data buses, an internal control clock signal is driven to a first level in delayed synchronization with an external clock signal, to a second level in synchronization with the external clock signal at the end of write operations, and to the second level in synchronization with a read amplifier control signal during read operations. The read and write data bus equalization times can therefore be separately optimized, enabling the memory to operate at a higher clock frequency than if the internal control clock signal were to be generated in the same way during both read and write operations.

The invention belongs to the technical filed of human nucleic acid in-vitro detection, and more specifically relates to a gene typing detection kit for human 13,18 and 21 chromosome 20 STR locus. According to the invention, a composite PCR amplification system for gene typing on 20 STR locus distributed on human 13, 18 and 21 chromosome is designed, and wherein a PCR amplification primer group is SEQ ID No.1-SEQ ID No. 40. The gene typing detection kit comprises a primer combination container and a PCR reaction mother liquor container; and the primer combination container comprises primer SEQ ID No.1-SEQ ID No. 40 composition storage liquid. In the invention, single tube amplification on 20 STR locus is carried out, STR locus in each fluorescence channel and different fluorescence channels have equal amplification, a typing graph is good; cost, manpower and time can be obviously saved, and work efficiency is increased.

A synchronous semiconductor memory device has a read data bus for transferring data from a memory cell array to a read amplifier, and a write data bus for transferring data from a write driver to the memory cell array. To control equalization of the read and write data buses, an internal control clock signal is driven to a first level in delayed synchronization with an external clock signal, to a second level in synchronization with the external clock signal at the end of write operations, and to the second level in synchronization with a read amplifier control signal during read operations. The read and write data bus equalization times can therefore be separately optimized, enabling the memory to operate at a higher clock frequency than if the internal control clock signal were to be generated in the same way during both read and write operations.

The invention discloses a porcine bocavirus detection and parting enrichment multiple PCR rapid diagnostic kit, namely an enrichment multiple PCR rapid diagnostic kit for simultaneous detection of all known porcine bocavirus genotypes. The kit comprises a PCR solution, a standard substance and a reference substance. A kit body is provided with container holes for containing a PCR solution tube, a PBoV G1 virus standard substance tube, a PBoV G2 virus standard substance tube, a PBoV G3 virus standard substance tube, a positive reference substance tube, a negative reference substance tube and a primer tube respectively. Through one PCR, whether a sample to be detected is a porcine bocavirus or not and which genotype of PBoV G1, PBoV G2 and PBoV G3 the sample to be detected belongs to can be quickly identified. The kit is high in specificity and sensitivity, easy, convenient and fast to use, and suitable for rapid detection and classified studies on the porcine bocavirus in clinics and scientific research, and has high application value.

A digital broadcasting transmission / reception system having an improved receiving performance and a signal processing method thereof. The transmission system includes a FEC encoder encoding an incoming signal according to a certain FEC scheme, a sync insertion unit inserting a sync into the encoded signal, a hidden pilot insertion unit inserting a hidden pilot into the sync-inserted signal, a pilot insertion unit inserting a pilot tone into the hidden-pilot-inserted signal, a pulse shaping filter pulse-shaping the pilot-tone-inserted signal with a certain roll-off factor, and a RF unit transmitting the pulse-shaped signal through a transmission channel band. Performances of equalization and synchronization acquirement can be enhanced in multipath conditions by utilizing the transmission system containing the hidden pilot.

The invention belongs to the technical field of human nucleic acid in vitro detection, in particular to a genetic typing detection kit for 23 genetic site on human No.5, No.19, No.21 and X / Y chromosomes. The genetic typing detection kit is characterized in that: a composite PCR (Polymerase Chain Reaction) amplification system for performing genetic typing on 23 genetic site distributed on the human No.5, No.19, No.21 and X / Y chromosomes is provided; PCR amplification primer group is shown as SEQ ID No.1- SEQ ID No.53; the genetic typing detection kit comprises a primer composition container and a PCR reaction mother liquor container; the primer composition container comprises a primer SEQ ID No.1- SEQ ID No.53 composition stock solution. By adopting genetic typing detection kit, the single-tube amplification for 23 genetic site, genetic site amplification balance in each fluorescent channel and different fluorescent channels, good typing spectrum are realized, the cost, labor force andtime are saved remarkably, and the working efficiency is improved.

The invention discloses an entry and exit full-service integrated intelligent certificate handling terminal and a service processing method. The terminal includes a machine case, a first input / outputdevice, a second input / output device, a photographing device, a certificate endorsement device and a control device. The machine case is provided with a certificate handling acceptance area and a certificate endorsement area. The first input / output device is disposed in the certificate handling acceptance area, the certificate handling acceptance area is disposed in the certificate endorsement area, and the certificate endorsement area is provided with a certificate endorsement inlet and outlet. The photographing device, the certificate endorsement device and the control device are disposed inthe machine case. The control device is connected with the first input / output device, the second input / output device, the photographing device and the certificate endorsement device. According to theentry and exit full-service integrated intelligent certificate handling terminal, the certificate handling acceptance area and the certificate endorsement area are marked out on the machine case, andparallel processing of multiple services can be achieved, thereby effectively implementing personnel diversion.

The invention relates to a method and kit for analyzing the ploidy of unicellular sex chromosomes quickly. According to the method, primers, as shown in SEQ ID NO.1-6, for X chromosome, Y chromosome and chromosome 21 respectively are adopted for preamplification of trace DNA from a single cell firstly, then nested primers as shown in SEQ ID NO.7-12 are adopted for real-time fluorescent quantitative PCR to obtain the DNA content values K and L of X chromosome and Y chromosome relative to the internal reference, a male standard substance, a female standard substance and a negative control group are arranged at the same time, and finally the values of K / L, K / K [female standard], L / L[female standard], K / K [male standard] and / or L / L[male standard] are calculated and the ploidy of the sex chromosomes of a sample to be tested is obtained. The method has the advantages of being high in accuracy, short in time and low in cost when used for analyzing the ploidy of the unicellular sex chromosomes and is helpful for clinical genetic diagnosis.

The invention belongs to the technical field of in-vitro human nucleic acid detection, and particularly relates to a human chromosome 15q11-13 genetic variation detection kit and application thereof.A multiplex PCR amplification system for simultaneously amplifying 16 STR loci distributed on a human chromosome 15 is firstly designed, and a PCR amplification primer set is as follows: SEQ ID No.1-SEQ ID No.32; a genotyping detection kit comprises a primer composition container and a PCR reaction mother solution container; the primer composition container contains a composition stock solution ofprimers SEQ ID No. 1-SEQ ID No. 32. Single-tube amplification of the 16 STR loci is achieved, the STR loci in each fluorescence channel and in different fluorescence channels are amplified in a balanced manner, and a typing pattern is good; in addition, the cost, the manpower and the time can be significantly reduced, and the working efficiency can be improved.

The invention involves biomedical field, particularly involves the detecting method and agent of the human leukocyte antigen genotyping. The method comprises the steps of: designing and synthesizing a set of probe by selecting the main variability region of three sites of HLA-A, -B, -DRB1 with most abundant polymorphism in human leukocyte antigen gene complexes, covalent-linking the probe to the fluorescent microspheres vector surface, each different fluorescent microspheres coupling a probe, balanced-mixing probes with different fluorescent microspheres to compose the liquid gene chip. The invention carries out balanced amplification of a number of gene fragments, the probe hybrids with target gene fragments in liquid environment, which has more hybridization efficiency compared with liquid-solid phase hybridization of traditional gene chip. In addition, the hybridization can be carried out in the ordinary 96-well plates, facilitates the pipetting operation with the use of multi-channel pipetting gun, the whole hybridization is convenient, rapid, which can effectively carry out high-throughput gene-typing.

The invention provides a single-cell whole genome amplification system and method based on microfluidic electrospray. The system includes a microfluidic chip and an alternate-current power supply module, wherein the microfluidic chip is provided with a sample flow channel used for injecting a discrete phase and a continuous phase, the alternate-current power supply module is used for applying alternate-current power to a sample solution in the sample flow channel, and the sample solution in the sample flow channel generates liquid drops under the action of electric field force and liquid force, and the drops are broken into ultra-small droplets under the pulling action of an alternate-current electric field within a certain distance. The microfluidic chip can be used for generating the ultra-small droplets by means of electrospray, and the accuracy of sequencing is improved.