Abstract: A system for in-situ testing of mechanical properties of materials in static and dynamic load spectra, that includes: an Arcan biaxial clamping subsystem, a press-in test subsystem, a biaxial fatigue test subsystem, a biaxial pre-tension loading subsystem, a signal detection subsystem, and a support and adjustment subsystem. A combined guide mechanism in the Arcan biaxial clamping subsystem is rigidly connected to a guide mechanism support block, an x-direction three sensor base and a y-direction force sensor base in the support and adjustment subsystem by threaded connections, respectively. A laser transmitter, a voice coil motor and a laser receiver in the press-in test subsystem are rigidly connected to a two-degree-of-freedom electric moving platform for the laser transmitter, a two-degree-of-freedom electric moving platform for the voice coil motor and a two-degree-of-freedom electric moving platform for the laser receiver in the support and adjustment subsystem by threaded connections, respectively.

Abstract: The invention discloses a reservoir tail reverse regulation method for native fish protection, comprising the steps that firstly, a breeding habitat of native fishes at reservoir tail of a cascade hydroelectric dam is determined; secondly, breeding characteristics of migration native fishes are determined, and an ecological conservation project of a reach of the breeding habitat at reservoir tail is carried out; thirdly, the length of the reservoir tail of a downstream hydropower station of a cascade hydroelectric project in March to May is determined through a field investigation, and the maximum range of a natural river channel downstream of the upstream cascade power station is judged and finally, the flow state of the reach at reservoir tail is reversely regulated to achieve the goal of discharging water of the natural river channel at the reservoir tail and ensuring the natural flow state of the natural river channel.

Abstract: Automatically reserving a requested resource in real-time is provided. In response to posting a resource request message that includes a set of resource request criteria on a network, a set of resource availability options is received from a set of resource service providers via the network using a negotiation communication channel. The set of resource availability options received from the set of resource service providers is ranked based on an amount of matching between constraints of each respective resource availability option and the set of resource request criteria. The set of resource availability options is displayed by rank from a greatest amount to a least amount of matching in a resource negotiation table.

Abstract: A system for in-situ testing of mechanical properties of materials in static and dynamic load spectra, that includes: an Arcan biaxial clamping subsystem, a press-in test subsystem, a biaxial fatigue test subsystem, a biaxial pre-tension loading subsystem, a signal detection subsystem, and a support and adjustment subsystem. A combined guide mechanism in the Arcan biaxial clamping subsystem is rigidly connected to a guide mechanism support block, an x-direction force sensor base and a y-direction force sensor base in the support and adjustment subsystem by threaded connections, respectively. A laser transmitter, a voice coil motor and a laser receiver in the press-in test subsystem are rigidly connected to a two-degree-of-freedom electric moving platform for the laser transmitter, a two-degree-of-freedom electric moving platform for the voice coil motor and a two-degree-of-freedom electric moving platform for the laser receiver in the support and adjustment subsystem by threaded connections, respectively.

Abstract: The fully-automatic closed-loop detection method includes: comparing a SCD file of a to-be-tested substation with a device-type data template file, so as to determine whether configuration information about the to-be-tested substation is correct; when the configuration information about the to-be-tested substation is correct, parsing the SCD file of the to-be-tested substation and generating a SSD topological diagram of the to-be-tested substation; and acquiring a testing item from a predetermined testing item library in accordance with the SSD topological diagram of the to-be-tested substation, generating a testing scheme for the to-be-tested substation, performing a testing operation and outputting a testing result.

Abstract: A speckle laser device based on low time coherence and low spatial coherence, and a preparation method therefor. The speckle laser device comprises a radio frequency modulator (1), a laser device (2), a diffracting optical element (3) and a focusing lens (4) that are coaxially and sequentially disposed on a same optical platform. The diffracting optical element (3) is located in the emergent direction of the laser device (2), the radio frequency modulator (1) modulates the laser device (2), and laser (001) modulated by the radio frequency modulator (1) enters the diffracting optical element (3). Laser beams emerging from the diffracting optical element (3) are zero-coherent speckle laser beams (002), the laser beams (002) enter the focusing lens (4), and the laser emerging from the focusing lens (4) forms a focused speckle laser (003).

Abstract: Provided is a high-stability T cell receptor (TCR). The TCR comprises (i) the whole or a part of TCR? chain except a transmembrane domain thereof, and (ii) the whole or a part of TCR? chain except a transmembrane domain thereof, both the (i) and the (ii) comprising a functional variable domain and at least a part of a constant domain of a TCR chain. An artificial interchain disulfide bond links the constant domains of the TCR? and ? chains, and a Tm value of the T cell receptor is greater than or equal to 45° C.

Abstract: Automatically reserving a requested resource in real-time is provided. In response to posting a resource request message that includes a set of resource request criteria on a network, a set of resource availability options is received from a set of resource service providers via the network using a negotiation communication channel. The set of resource availability options received from the set of resource service providers is ranked based on an amount of matching between constraints of each respective resource availability option and the set of resource request criteria. The set of resource availability options is displayed by rank from a greatest amount to a least amount of matching in a resource negotiation table.

Abstract: A system for staring a large-scale power load in a micro grid comprises a PCC grid connection switch, a micro grid alternating-current bus, an active power filter (APF), an energy storage inverter, an energy storage battery, a current-limiting resistor R, contactors K1-K3, a time relay KT, a power supply relay board, a micro grid maser control system, a frequency converter rectifying circuit, a frequency converter filter circuit, and a frequency converter inverter circuit. There are the advantages: an output torque of a power load can be effectively improved by using a variable frequency starting apparatus, and a starting current is also small; the provided method can effectively reduce a harmonic current when a variable frequency starting apparatus starts a power load, the phenomenon that two power sources supply power on a direct-current side of the variable frequency starting apparatus at the same time is avoided, thereby improving the stability and the economy of a micro grid.

Abstract: A transformer internal composite defect fuzzy diagnosis method based on gas dissolved in oil, comprising: a step of acquiring monitoring data of volume concentrations of five types of monitored feature gas; a step of determining ratio codes; a step of modifying a three-ratio method; a step of fuzzifying a boundary range; a step of calculating probabilities of the ratio codes; a step of calculating a probability of occurrence of each defect fault; and finally obtaining a fault type of a transformer.

Abstract: A data transfer system is disclosed, which comprises a serial controller and a switch device. The switch device includes a first serial port, a second serial port, and a transferring unit. The first serial port and the second serial port are individually configured to transmit a first type signal to the transferring unit. The transferring unit selectively switches a transmission of the first type signal from either the first serial port or the second serial port to the serial controller. The first serial port and the second serial port are individually configured to transmit a second type signal to the serial controller, wherein the first type signal is faster than the second type signal in transmission rate.

Abstract: The present invention discloses a multi-rotor structure applied to an unmanned aerial vehicle, and belongs to the technical field of unmanned aerial vehicles. The unmanned aerial vehicle includes a fuselage, first rotors, second rotors and rotor shafts; and the multi-rotor structure includes first rotary connecting pieces and second rotary connecting pieces. The first rotary connecting piece includes a first motor and a first dismounting thread group, the first rotor is detachably connected with the first motor through the first dismounting thread group to achieve the mounting or dismounting between the first rotor and the first motor by rotating the first rotor; the second rotary connecting piece includes a second motor and a second dismounting thread group, and the second rotor is detachably connected with the second motor through the second dismounting thread group to achieve the mounting or dismounting between the second rotor and the second motor by rotating the second rotor.

Abstract: A system for staring a large-scale power load in a micro grid comprises a PCC grid connection switch, a micro grid alternating-current bus, an active power filter (APF), an energy storage inverter, an energy storage battery, a current-limiting resistor R, contactors K1-K3, a time relay KT, a power supply relay board, a micro grid maser control system, a frequency converter rectifying circuit, a frequency converter filter circuit, and a frequency converter inverter circuit. There are the advantages: an output torque of a power load can be effectively improved by using a variable frequency starting apparatus, and a starting current is also small; the provided method can effectively reduce a harmonic current when a variable frequency starting apparatus starts a power load, the phenomenon that two power sources supply power on a direct-current side of the variable frequency starting apparatus at the same time is avoided, thereby improving the stability and the economy of a micro grid.

Abstract: A reading apparatus suited for being inserted into a first electronic device or a second electronic device is disclosed. The first electronic device has a first interface receptacle. The second electronic device has a second interface receptacle. The reading apparatus has a first interface-module and a second interface-module. The first interface-module comprises a plurality of pins corresponding to the first interface receptacle and used to transmit a first interface signal. The pins comprise a plurality of first pins which are disposed on a top surface of a circuit board, and comprises a first positive-negative direction determining pin which is used to confirm whether the first interface-module is positively inserted or negatively inserted into and the first interface receptacle. The second interface-module comprises a plurality of conduction pad corresponding to the second interface receptacle and used to transmit a second interface signal.

Abstract: An electrical connector includes a connecting casing, a terminal assembly and a receiving member, in favor to attaching on a cable. Each rear end of a plurality of terminals of the terminal assembly protrude to a terminal carrier of the terminal assembly in furtherance to penetrate through the receiving member up till the terminals being exposed out of a rear-side socket of the connecting casing.

Abstract: A data transfer system is disclosed, which comprises a serial controller and a switch device. The switch device includes a first serial port, a second serial port, and a transferring unit. The first serial port and the second serial port are individually configured to transmit a first type signal to the transferring unit. The transferring unit selectively switches a transmission of the first type signal from either the first serial port or the second serial port to the serial controller. The first serial port and the second serial port are individually configured to transmit a second type signal to the serial controller, wherein the first type signal is faster than the second type signal in transmission rate.

Abstract: A server includes a Southbridge chipset, a USB port, a storage device, a baseboard management controller (BMC), and a switch. When the BMC is powered on and started, the BMC establishes communication between a USB device connected to the server and the BMC by uploading a driver of the USB device from the storage device to memory of the BMC. In response to receiving a firmware update command in relation to the BMC, the BMC disconnects an electrical connection between the USB port and the Southbridge chipset, and establishes an electrical connection between the USB port and the BMC using the switch. Then, the BMC reads updated firmware data from the USB device via the USB port, writes the updated firmware data into the memory, and updates the firmware of the BMC by writing the updated firmware data into the storage device.

Abstract: A method for calculating a primary time constant of a power grid. It comprises the steps of: establishing an electromechanical transient model of the power grid using the widely used power system analysis software package (PSASP) according to the actual power grid parameters and network topology; establishing an electromagnetic transient model under PASAP using the actual power grid parameters for a site which requires the calculation of the primary time constant of the power grid, and setting a ground short circuit fault at the site; obtaining a transient short circuit current of the short circuit point of the power grid using a hybrid simulation method of the electromechanical and electromagnetic transient models; filtering out a periodic component in the transient short circuit current to obtain a non-periodic component attenuated with time, and finding the attenuation time constant of the non-periodic component which is the primary time constant of the power grid.

Abstract: A BIOS circuit for a computer includes a baseboard management controller (BMC), a central processing unit (CPU), a main basic input-output system (BIOS) storage, and a subsidiary BIOS storage. Both the main BIOS storage and the subsidiary BIOS storage store programs for controlling the computer. The CPU executes the programs stored in the main BIOS storage to control the computer. When data of the programs stored in the main BIOS storage is missing or corrupted, the BMC copies data of the programs stored in the subsidiary BIOS storage to the main BIOS storage to recover the missing or corrupted data in the main BIOS storage.

Abstract: A server in communication with a remote control device and a display device includes a super input/output (SIO) microchip, a basic input/output system (BIOS), and a baseboard management controller (BMC). The SIO microchip outputs debugging commands and IPMI commands. The BMC includes a setting module, receiving module, and a transmitting module. The setting module sets the BIOS to establish communication between the BMC and the SIO microchip. The receiving module receives the IPMI commands or the debugging commands to debug errors of firmware pre-stored in the BMC. The transmitting module outputs the errors of the firmware to the remote control device or the display device via the SIO microchip.