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 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 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.

The invention relates to a fluid dynamic bearing system having at least one stationary part and one rotating part that form a bearing gap filled with bearing fluid between the opposing bearing surfaces, at least one end of the bearing gap being open and sealed against the environment by a sealing means, pumping grooves being provided on at least two spatially separated bearing surfaces to generate hydrodynamic pressure and at least one supply volume connected to the bearing gap being available for the bearing fluid. The distinctive feature of the invention is that the sealing means are formed by pumping grooves that are disposed at the open end of the bearing gap on at least one of the bearing parts and designed in such a way that they generate a pumping action on the bearing fluid directed towards the interior of the bearing and, as a result, create a dynamic seal for the open end of the bearing. The bearing system itself is designed as a compact unit preferably consisting of only three parts.

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.

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.

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 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 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 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.