Abstract: A non-limit multi-function viscoelastic support structure group, relating to a field of aerospace structural design, includes a basic structure, a supported structure and multiple viscoelastic support structure units. The multiple viscoelastic support structure units form a circular discontinuous group and are arranged between the basic structure and the supported structure. The viscoelastic support structure units are connected with the basic structure and the supported structure respectively in ways of pre-pressing and surface contact, and no fixed constrained relationship exists. The present invention absorbs a vibration energy through a viscoelastic effect of own structural material and forms a spring-oscillator vibration attenuation system with the supported structure.

Abstract: A reagent kit used for detecting gastrin-17, a preparation method, and a detection method for the reagent kit. The reagent kit comprises component A and component B, wherein component A is a first anti-gastrin-17 antibody marked with a trace marker or coated on magnetic spheres, and component B is a second gastrin-17 antibody or gastrin-17 coated on magnetic spheres or marked with a trace marker. Either one of component A and component B is marked with the trace marker, and the other one is coated on the magnetic spheres. The first gastrin-17 antibody and gastrin-17 binding site is different from the second gastrin-17 antibody and gastrin-17 binding site. The method using a double antibody sandwich method or a competition method to detect gastrin-17 accurately and sensitively measures the amount of gastrin-17 in a sample.

Abstract: An experimental system for laser beam measurement and steering control, and relates to the technical field of optical, mechanical and electronic integration experimental systems. It includes: a high-precision optical mirror, a piezoelectric micro-actuator, a vibration exciter, a signal collection subsystem, a laser emitter, a beam splitter mirror, a fast steering mirror, a mechanical vibration isolation air bearing table, an optical vibration isolation air bearing table, a data processing and analyzing subsystem, and data transmission lines and power supply lines between subsystems and components. It uses a deflection angle of the laser beam as a control variation, can not only precisely measure the deflection angle of the laser beam, but also inhibit vibration of the high-precision optical mirror by using the piezoelectric micro-actuator and directly adjust the steering of the emitted laser beam by using the fast steering mirror, thereby improving precision of beam steering control.

Abstract: Embodiments of the present invention provide a frequency offset detection method and apparatus. The frequency offset detection method in the present invention includes: calibrating a frequency offset of a clock signal output by a local crystal oscillator of a network element device, and performing frequency offset detection on a tracked reference clock signal by using the calibrated clock signal output by the local crystal oscillator. The embodiments of the present invention solve a problem in the prior art that a detection result for a frequency offset of a reference clock signal is inaccurate because of an existence of a frequency offset of a local crystal oscillator and a parameter drift caused by aging, thereby improving detection precision without replacing hardware.

Abstract: The present disclosure provides a method and a system for updating an in-vehicle navigation map, an in-vehicle navigation device, and a mobile terminal. The method includes: establishing a connection with a mobile terminal; sending a configuration file of the in-vehicle navigation map to the mobile terminal via the connection, in which the configuration file includes regions and versions of map data corresponding to the regions; receiving latest map data sent by the mobile terminal, and updating the map data of regions corresponding to the latest map data, in which the latest map data is obtained by the mobile terminal according to the configuration file.

Abstract: Embodiments of the present invention provide a frequency offset detection method and apparatus. The frequency offset detection method in the present invention includes: calibrating a frequency offset of a clock signal output by a local crystal oscillator of a network element device, and performing frequency offset detection on a tracked reference clock signal by using the calibrated clock signal output by the local crystal oscillator. The embodiments of the present invention solve a problem in the prior art that a detection result for a frequency offset of a reference clock signal is inaccurate because of an existence of a frequency offset of a local crystal oscillator and a parameter drift caused by aging, thereby improving detection precision without replacing hardware.

Abstract: The present disclosure provides a method and a system for updating an in-vehicle navigation map, an in-vehicle navigation device, and a mobile terminal. The method includes: establishing a connection with a mobile terminal; sending a configuration file of the in-vehicle navigation map to the mobile terminal via the connection, in which the configuration file includes regions and versions of map data corresponding to the regions; receiving latest map data sent by the mobile terminal, and updating the map data of regions corresponding to the latest map data, in which the latest map data is obtained by the mobile terminal according to the configuration file.

Abstract: A dual phase-locked loop (PLL) circuit includes a phase/frequency detector, a charge pump, a frequency tuning circuit and an N divider. The frequency tuning circuit includes a coarse-tuning circuit, for coarse-tuning an output frequency of the dual PLL circuit to approximate a target frequency; a fine-tuning circuit, for fine-tuning the output frequency of the dual PLL circuit to the target frequency; and a current control oscillator (CCO), for generating an output signal of the dual PLL circuit. The output frequency of the output signal is equal to the target frequency.

Abstract: The invention of automatic online defective elements checking and removing device relates to flexographic printing presses. Between a first vacuum conveying platform and a second vacuum and separating-conveying platform on the top of a mobile frame is provided a defective elements remover including a defective removing air ejector operated by a valve, which receives output signal from the online computerized visual QC station at the flexographic printing press and a receiver for carrying the ejected elements away from the platforms. Under the mobile frame is provided a vacuum pump and vacuum distribution tube connected each other with steel wire enforced hose and a ball valve is used to adjust the vacuum in order to prevent the printed labels from drifting on the conveyor belts. Both of the platforms are separately driven by motors and via toothed belts.

Abstract: An impacting head using in an impact testing device comprises a substrate made of aluminum or aluminum alloy and a rubber head made of polyurethane resin, the substrate and the rubber head are bonded together by adhesive layer mainly containing epoxy resin. The impacting head has low cost and a long service life. Furthermore, the impacting head produces a display of trapezoidal waves following impact tests which meets the requirements of the IEC 60068-2-27 2008 standard.

Abstract: A shock and impact testing device includes a shock and impact module and a control module. The shock and impact module includes a base, a platform, an elastic cushion positioned on the base, an elastic impact pad positioned on the platform facing the cushion, and a lifting structure connected to the platform to drive the platform to rise and then release the platform to allow the platform to fall down until the impact pad hits the cushion. The control module includes an interface configured for inputting impact parameters, a converting unit and a control unit. The converting unit calculates corresponding testing parameters according to the impact parameters. The control module controls the lifting structure to drive the platform to rise according to the testing parameters.

Abstract: An automated remote water quality monitoring system with wireless communication capability and the method thereof is provided. A water quality monitoring system is provided, including: a plurality of monitoring apparatuses, each of which has a radio communication module transmitting at least one environmental parameter; a server receiving the at least one environmental parameter via a base station; and a gateway being one selected from a group consisting of the plurality of monitoring apparatuses, being geographically the closest one to the base station, receiving the at least one environmental parameter and transmitting the at least one environmental parameter to the base station.

Abstract: A shock and impact testing device includes a shock and impact module and a control module. The shock and impact module includes a platform, an air cylinder having a rod, an impact head positioned on the platform aligning with the rod, and a lifting structure connected to the platform to drive the platform to rise and then release the platform to allow the platform to fall down freely until the impact head hits the rod. The control module calculates a pressure of the air cylinder and a height difference between the impact head and the rod, and controls the lifting structure to drive the platform to rise to a height difference between the impact head and the rod meets the calculated height difference and adjusting a pressure of the air cylinder to meet the calculated pressure.

Abstract: An automated remote water quality monitoring system with wireless communication capability and the method thereof is provided. A water quality monitoring system is provided, including: a plurality of monitoring apparatuses, each of which has a radio communication module transmitting at least one environmental parameter; a server receiving the at least one environmental parameter via a base station; and a gateway being one selected from a group consisting of the plurality of monitoring apparatuses, being geographically the closest one to the base station, receiving the at least one environmental parameter and transmitting the at least one environmental parameter to the base station.

Abstract: A dual phase-locked loop (PLL) circuit includes a phase/frequency detector, a charge pump, a frequency tuning circuit and an N divider. The frequency tuning circuit includes a coarse-tuning circuit, for coarse-tuning an output frequency of the dual PLL circuit to approximate a target frequency; a fine-tuning circuit, for fine-tuning the output frequency of the dual PLL circuit to the target frequency; and a current control oscillator (CCO), for generating an output signal of the dual PLL circuit. The output frequency of the output signal is equal to the target frequency.

Abstract: A toilet flushing water controlling device is used in conjunction with a reservoir and comprises a funnel part, forming a lower part of the reservoir and having a lower end with an outlet, a sealing ball for closing the outlet, placed in the reservoir, and a flushing device for displacing the sealing ball from the outlet so as to release flushing water from the reservoir. Thereby developing of germs is prevented flushing water is saved.

Abstract: A binding device for pulling tight a belt comprises a first ratchet wheel and a second ratchet wheel, each having a plurality of mounting openings, a roll, having a plurality of roll sectors that are respectively mounted in the mounting openings of the first and second ratchet wheels, of which at least one roll sector is removable, a lever, connected with the first ratchet wheel, a frame, connected with the second ratchet wheel; an upper blocking assembly, mounted on the lever, blocking the first ratchet wheel from turning, and a lower blocking assembly, mounted on the lever, blocking the second ratchet wheel from turning. Due to removability of one of the roll sectors, the belt is easily mounted and dismounted, and a wide range of applications is provided for.

Abstract: A binding device for pulling tight a belt comprises a first ratchet wheel and a second ratchet wheel, each having a plurality of mounting openings, a roll, having a plurality of roll sectors that are respectively mounted in the mounting openings of the first and second ratchet wheels, of which at least one roll sector is removable, a lever, connected with the first ratchet wheel, a frame, connected with the second ratchet wheel; an upper blocking assembly, mounted on the lever, blocking the first ratchet wheel from turning, and a lower blocking assembly, mounted on the lever, blocking the second ratchet wheel from turning. Due to removability of one of the roll sectors, the belt is easily mounted and dismounted, and a wide range of applications is provided for.

Abstract: The present invention is based on the findings that BACE2, a homolog of ?-secretase BACE, is able to stimulate processing of APP in a non-amyloidogenic pathway, thereby suppressing the level of A?. Accordingly, the present invention provides methods and means for the identification and use of modulators of this unique activity of BACE2 to suppress A? production. The compounds identified using the methods and means provided herein may be used as potential candidates for the treatment of Alzheimer's disease and other neurological diseases.

Abstract: A device and method are described that apply 1-D and 2-D discrete cosine transforms (DCT) and inverse discrete cosine transforms (IDCT) to sets of input data, typically 8×8 or 16×16 matricies of coefficients. One device includes input lines, logic to pre-add input values and generate operands and one or more adder networks that effectively carry out the multiplication operations required to apply a DCT/IDCT transform. The device may apply a 1-D transform twice to accomplish a 2-D transform. Alternatively, the device may either include successive stages of logic for the second 1-D transform or it may send data transformed once back through the same logic to pre-add and adder networks for the second 1-D transform. Calculations may be carried out after Booth encoding of operands. The processing may be split between producing vp, a vector of sums of output values, and producing vn, a vector of differences of output values, which vectors may be recombined to produce an output vector v.