Abstract: Disclosed are an rBJ-VVL plasmid, a mutant strain of NADC34-like PRRSV-2 and a preparation method therefor and application thereof. Further disclosed is an NADC34-like PRRSV-2-specific vaccine. In the present disclosure, a modified strain rBJ-VVL with tropism for Marc-145 cells is obtained by precisely mutating an amino acid at positions 91/97/98 of GP2a; the modified virus constructed in the present disclosure can be propagated in Marc-145 cells, cause cytopathic effects and form plaques when inoculated into Marc-145 cells for serial passage; the resulting Marc-145 cell-passaged viruses have an extremely viral load, and a large number of new progeny viruses can be obtained in a short time; and the Marc-145-adapative modified strain cultured in the present disclosure is used to create a first NADC34-like PRRSV-2-specific vaccine.

Abstract: An electric surgical stapler with state display is provided, which includes a housing, an anastomosis bobbin, a jaw, a dynamic structure, a power supply structure, a control board, a state display screen, and an RF antenna. The dynamic structure, power supply structure, state display screen, and RF antenna are respectively electrically connected with the control board; the housing includes a display slot, an antenna slot, and a board slot. The state display screen is provided in the display slot, the RF antenna is provided in the antenna slot, the control board is provided in the board slot. The state display screen and RF antenna are arranged in parallel. In working state, the dynamic structure is controlled to drive the jaw to perform by the control board, thereby completing closing, firing, retraction and other operations, the state display screen synchronously displays an operation state and progress of the jaw.

Abstract: An electric surgical stapler with state display is provided, which includes a housing, an anastomosis bobbin, a jaw, a dynamic structure, a power supply structure, a control board, a state display screen, and an RF antenna. The dynamic structure, power supply structure, state display screen, and RF antenna are respectively electrically connected with the control board; the housing includes a display slot, an antenna slot, and a board slot. The state display screen is provided in the display slot, the RF antenna is provided in the antenna slot, the control board is provided in the board slot. The state display screen and RF antenna are arranged in parallel. In working state, the dynamic structure is controlled to drive the jaw to perform by the control board, thereby completing closing, firing, retraction and other operations, the state display screen synchronously displays an operation state and progress of the jaw.

Abstract: Disclosed herein are amide-substituted imidazo compounds and pharmaceutical compositions comprising at least one such novel benzoimidazoles, processes for the preparation thereof, and the method for using the same in therapy. In particular, disclosed herein are certain amide-substituted imidazo compounds that are useful for inhibiting indoleamine 2, 3-dioxygenase and for treating diseases or disorders mediated thereby.

Abstract: An input detection and protection circuit and an AC electronic ballast for HID lamps, including a power input circuit performing a first limitation to an input surge voltage and then performing a second limitation to a residual voltage from the first input surge voltage limitation; an input voltage acquisition circuit feeding back an input voltage to an MCU chip; a pull-in circuit for a relay connecting to a relay in the power input circuit; a PFC circuit, and an MCU chip controlling the PFC circuit to switch on and off according to voltage values input by the input voltage acquisition circuit, and controlling pull-in and drop-out of the relay through the pull-in circuit for the relay.

Abstract: An input detection and protection circuit and an AC electronic ballast for HID lamps, including a power input circuit performing a first limitation to an input surge voltage and then performing a second limitation to a residual voltage from the first input surge voltage limitation; an input voltage acquisition circuit feeding back an input voltage to an MCU chip; a pull-in circuit for a relay connecting to a relay in the power input circuit; a PFC circuit, and an MCU chip controlling the PFC circuit to switch on and off according to voltage values input by the input voltage acquisition circuit, and controlling pull-in and drop-out of the relay through the pull-in circuit for the relay.

Abstract: A method and apparatus provide a state observer control system 600 for a motor 106 that uses an extended Kalman filter 330 to predict initial rotor position and afterwards accurately predict rotor position and/or speed under variable types of loading conditions. A control system model 300 is generated that allows variable setting of an initial rotor position to generate estimated rotor position and speed as outputs. The control system model 300 includes an EKF (extended Kalman filter) estimator 330, speed controller 322, a current controller 324, and a variable load component 310. During operation, EKF estimator 330 estimates rotor speed 327 and position 333 based on reference voltages 402, 404 and currents 1325 generated by speed and current controllers 322, 324 and input from frame transformers 326, 328.

Abstract: A method and apparatus provide a state observer control system 600 for a motor 106 that uses an extended Kalman filter 330 to predict initial rotor position and afterwards accurately predict rotor position and/or speed under variable types of loading conditions. A control system model 300 is generated that allows variable setting of an initial rotor position to generate estimated rotor position and speed as outputs. The control system model 300 includes an EKF (extended Kalman filter) estimator 330, speed controller 322, a current controller 324, and a variable load component 310. During operation, EKF estimator 330 estimates rotor speed 327 and position 333 based on reference voltages 402, 404 and currents 1325 generated by speed and current controllers 322, 324 and input from frame transformers 326, 328.

Abstract: A midplane board of a high-density server has mounted to it eight processor cards having modified CPCI form factors, multiple hard drive cards and a KMV switch card, all networked together using redundant network control cards through network connections formed from a CPCI J2 bus. Power is supplied to the processor cards by redundant power supply cards through the CPCI J2 bus as well. The processor cards and power supply cards are mounted to the back side of the midplane board while the multiple hard drive cards, the KMV switch card and expansion cards are mounted to the front side of the midplane board. All cards are hot swappable and configured horizontally on the midplane board. Each processor card controls two expansion cards through the CPCI J1 bus passing through the midplane board. The processor card pinout is the mirror image of that of traditional CPCI front side processor cards.

Abstract: Improved telomerase activity assays are provided in which a ligation sequential reaction (LSR) or BrdUTP are used to identify a telomerase specific product. These assays are useful in diagnosing various cancers and determining the clinical prospects for cancer patients. In addition, the assays can be used to screen for substances that interfere with telomerase activity.