Bcd Semiconductor Manufacturing Limited

Shanghai University

Shanghai Sim-bcd Semiconductor Manufacturing Co., Ltd.

Bcd Semiconductor Manufacturing Co., Ltd.

Cinkate Pharmaceutical Intermediates Co., Ltd.

Shanghai Institute of Nutrition and Health, Academy of Sciences

Cinakate Pharm Tech (shanghai) Co., Ltd.

Basf Coatings Gmbh

Cinkate Pharm Tech (shanghai) Co., Ltd.

Na Liu

Hong Li

Jianhua Duan

Xuegang Ren

Siyuan Xu

Yajiang Zhu

Yan Peng

Ming Wang

Zeqiang Chen

Yan Tang

Lihui Zhao

Dan Zhang

Zhimin Hu

Fei Xiao

Bin Rong

Yuanyuan Liu

Ziheng Chen

Mushtaq Patel

Song Yu

Chao Deng

Lixia Bao

Zhepeng Wei

Dianzhen Yu

Yufeng Zhou

Shrirang Hindalekar

Yuling Wang

Aibo Wu

Huiyu Yuan

Kewei Zhang

Dongqiang Hu

Tao Yue

Rahul Mulay

Ling Yu Sui

Qin Yuan Chen

The present disclosure provides a magnetic dressing and a preparation method and use thereof, belonging to the technical field of pharmaceutical preparations. The magnetic dressing includes a magnetic layer, a drug-loading layer, and a protective layer that are stacked in sequence, where the magnetic layer includes polyvinyl alcohol, gluten, and iron particles. In the present disclosure, a swallowed magnetic dressing is controlled by an external magnetic field, and the magnetic dressing is moved to a pathological position by changing a direction of the external magnetic field; after the external magnetic field is removed, the magnetic dressing changes from a ring to a sheet, thereby completing attachment of an entire lesion surface to complete treatment by autonomous drug release.

Magnetic dressing and preparation method and use thereof

The present invention provides a method for preparing a pyrrolopyrimidine compound and application thereof. Specifically, the present invention provides a compound represented by formula I or pharmaceutically-acceptable salts thereof, a pharmaceutical composition containing the compound or its salts, and a method for preparing the pharmaceutical composition and an application of the pharmaceutical composition as an immunosuppressive drug. 

Substituted pyrrolo[2,3-d]pyrimidines as janus kinase inhibitors

The present invention relates to a-derived selenium nanoparticles foliar fertilizer which reduces crop fungal diseases and toxin contamination. For the first time, a new type of agricultural composition was disclosed, which is mainly obtained by mixingculture with selenite, which has a good fungistatic effect. The inventors also screened and obtained astrain with excellent effect. After fermentation, mixed with selenite and post-processed, the obtained product had a significant effect on resisting harmful fungus and improving disease resistance of the plant.

Trichoderma-derived selenium nanoparticles foliar fertilizer for reducing crop fungal diseases and toxin contamination

A driver circuit for an LED (light-emitting diode) lamp includes a transformer having a primary winding and a secondary winding, a dimmer circuit coupled to a power source for varying an input voltage to the primary winding, and an output rectifying circuit coupled to the secondary winding for providing an output current to the LED lamp. The driver circuit also includes a controller coupled to the dimmer circuit to receive an average input voltage signal (DIM) from the dimmer circuit. The controller is configured to vary the output current according to the average input voltage.

Circuit and method for driving LED lamp with a dimmer

An SMPS received a rectified periodic input line voltage and is configure to provide a regulated output. A power switch has a constant turn-on time in a given cycle of the rectified periodic input line voltage. A maximum value of the envelope of peak currents through the power switch is determined and is compared with a reference value, and the power switch turn-on time in the next cycle is adjusted accordingly. The output of the power supply is regulated to a target output value, and the current is in phase with the periodic input line voltage, resulting in a high power factor. No sampling of the line voltage is needed to maintain the high power factor. A controller chip can have as few as five pins. Alternatively, a seven-pin controller chip can have two external resistors for selecting operations in either Boundary Conduction Mode (BCM) or Discontinuous Conduction Mode (DCM).

High power-factor control circuit and power supply

A switching mode power supply (SMPS) includes a rectifying device configured for converting a periodically varying input AC (alternating current) voltage into a DC (direct current) voltage, and a transformer including a primary winding, a secondary winding, and an auxiliary winding. The primary winding is coupled to the rectifying device. An input capacitor is coupled to the rectifying device and the primary winding of the transformer. A first power switch is coupled to the input capacitor. A control circuit is coupled to the first power switch and is configured to control the first power switch based on a phase or amplitude of the input AC voltage. By controlling the charging and discharging of the input capacitor, power is provided to the primary winding during a longer portion of the AC input voltage cycle, allowing the rectifier device to have a larger conduction angle to increase a power factor (PF).

Circuits and methods for increasing power factor of switch mode power supply

A switch-mode power supply (SMPS) includes a transformer having a primary winding coupled to a power switch, a secondary winding for providing an output of the power supply, and a controller. The controller includes a first input terminal for receiving a current sensing signal related to a current in the primary winding, a second input terminal for receiving a feedback signal related to a current in the secondary winding, and an output terminal for providing a control signal to turn on and off the power switch. When the feedback signal is higher than a first reference voltage, the controller is configured to cause the SMPS to maintain a constant output current at a first current magnitude. When the feedback signal is lower than the first reference voltage, the controller is configured to cause the SMPS to provide a second output current at a second current magnitude higher than the first current magnitude.

Control circuit and system for switch mode power supply

A system for driving an LED (light-emitting diode) lamp includes a dimmer circuit coupled to a line input voltage for varying a magnitude of an input voltage and a transformer having a primary winding, a secondary winding, and one or more auxiliary windings, the primary winding coupled to the dimmer circuit. The system also includes an output rectifying circuit coupled to the secondary winding for providing an output current to the LED lamp and a power switch coupled to the primary winding for controlling a current flow in the primary winding. The system further includes a controller having a comparator and a capacitor for providing a control signal to control the power switch for regulating the output current. The controller coupled to the dimmer circuit for receiving an average input voltage signal from the dimmer circuit, wherein the control signal is characterized by a duty cycle that is determined by a ratio of a charging current to a discharging current of the capacitor, and the ratio is related to the average input voltage signal from the dimmer circuit.

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Shanghai, China

Na Liu