Astec International Limited

Nanjing University of Technology

Nanjing Genscript Biotech Co., Ltd.

Jiangsu Green River Environmental Technology Co., Ltd.

Legend Biotech Ireland Limited

Lin Wang

Wing Ling Cheng

Zhe Wang

Jun Wang

Chuan-Chu Chou

Hao Zhang

Hong Qian

Qiuchuan Zhuang

Xiaohu Fan

Piotr Markowski

Pingyan Wang

Jiaying Hao

Huai Gang Jiang

Hong Fei Bu

Jian Wang

Feng Chuan Gao

Xuehong Gu

Chun Zhang

Gang Tao

Lu Yu

Lei Yang

Dan Zhao

Xian He

Cell separation instrument

Provided is a method for preparing a defect-free DDR molecular sieve membrane. Sigma-1 molecular sieve is used as an inducing seed crystal to prepare and obtain a continuous and compact DDR molecular sieve membrane on the surface of a porous ceramic support. An ozone atmosphere or an external field assisted technology is used to remove a template in the pores of the molecular sieve membrane at a low temperature. The invention avoids the formation of intercrystal defects and cracks, an activated DDR molecular sieve membrane has a good selectivity for separating CO2, and the membrane preparation time is significantly reduced.

Method for preparing defect-free DDR molecular sieve membrane

A variable-diameter reinforcing cage for an anchor rod or pile foundation, comprising an axial rod (), a plurality of vertical bars (), at least two circular fixators () and several groups of ribs () which correspond to the circular fixators (). The circular fixators () are all sleeved on the axial rod (); one end of the ribs () is movably connected to the position of the vertical bars () at the same height, and the other end of the ribs () is movably connected to the circular fixators (); annular hoops () are arranged on the periphery of the vertical bars () to serve as circles of latitude; fixing points are formed on the annular hoops () and the vertical bars (); and the annular hoops () are annular spiral spring hoops of an elastic material or flexible steel wires.

Variable-diameter reinforcing cage for anchor rod or pile foundation

Multi-level power converters are disclosed. In one embodiment, a multi-level power converter includes an input for receiving an input voltage and a converter output for providing a variable output voltage. The multi-level power converter includes a plurality of switching circuits. Each switching circuit is connected to the input in parallel with each other switching circuit. Each switching circuit includes an output. Each switching circuit is selectively operable to couple its output to the input voltage or a reference voltage. The multi-level power converter includes a parallel multi-winding autotransformer (PMA). The PMA includes a plurality of windings and a magnetic core having a plurality of magnetically connected columns. Each winding is positioned around a different one of the columns and has a beginning and an end. The output of each switching circuit is coupled to the beginning of a different winding. The end of each winding is connected to the converter output in parallel with each other winding.

Multi-level parallel power converters

Multi-winding magnetic structures and methods of making multi-winding magnetic structures are disclosed. In one embodiment, a multi-winding magnetic structure includes a core constructed of a magnetic material and a plurality of windings. The core includes a core top, a core bottom, and a plurality of columns. The core top has an exterior edge defining a shape of the core top. A central section of the core top has a substantially constant thickness that defines a thickness of the core top. The core bottom is beneath the core top and has an exterior edge defining a shape of the core bottom. A central section of the core bottom has a substantially constant thickness that defines a thickness of the core bottom. The thickness of one of the core bottom and the core top decreases from an edge of its central section to its exterior edge. The plurality of columns extends from the core bottom to the core top and the plurality of windings are wound around the columns.

Coil winding and coil arrangement for multi-winding magnetic structures

Core and coil construction for multi-winding magnetic structures

A regulator comprising a linear regulator. The linear regulator may comprise a preamplifier, a first radio frequency (RF) transistor and a second radio frequency (RF) transistor. An output of the preamplifier stage may be provided to a biasing terminal of the first RF transistor and a biasing terminal of the second RF transistor. Also, the first and second RF transistors may be electrically connected in series between a positive supply voltage and a negative supply voltage.

Linear regulator with RF transistors and a bias adjustment circuit

A circuit for use with a power amplifier that amplifies an input signal. The circuit may comprise an amplitude correction circuit and an open-loop switching regulator. The amplitude correction circuit may be configured to generate a corrected envelope signal from an input envelope signal that represents an envelope of the input signal. The open-loop switching regulator may be connected to the amplitude correction circuit and may be for powering the power amplifier based on the corrected envelope signal. According to various embodiments, the corrected envelope signal generated by the amplitude correction circuit is a function of the input envelope signal and an error voltage of the open-loop switching regulator.

Power supply providing ultrafast modulation of output voltage

A method for detecting a performance degradation of a capacitor in a power converter is disclosed. The method includes monitoring a voltage across the capacitor, detecting the performance degradation of the capacitor based on the monitored voltage, and generating a warning signal after detecting the performance degradation of the capacitor. A power converter is including at least one capacitor and a processor operably coupled to the at least one capacitor for monitoring a voltage across the at least one capacitor is also disclosed. The processor is configured for detecting a performance degradation of the capacitor based, at least in part, on the monitored voltage, and for generating a warning signal after detecting the performance degradation of the at least one capacitor.

Health monitoring for power converter capacitors

A power converter including a processor, at least one component whose health in the power converter will degrade over time, and at least one alarm is disclosed. The processor is configured for monitoring the health of the component over time, and for activating the alarm when the monitored health of the component reaches a threshold level.

Power converter with degraded component alarm

A power converter including a processor and at least one component whose health in the power converter will degrade over time is disclosed. The processor is configured for monitoring the health of the component over time, and for generating a warning signal when the monitored health of the component reaches a threshold level. A method for monitoring the health of at least one component in a power converter is also disclosed. The method includes monitoring at least one performance characteristic of the power converter. The performance characteristic represents the health of the component. The method further includes comparing the monitored performance characteristic with stored data to determine whether the health of the component has reached a predetermined level, and generating a warning signal after determining the health of the component has reached the predetermined level.

Health monitoring for power converter components

Growing community of inventors

Nanjing, China

Lin Wang