Eaton Corporation

Tongji University

3m Innovative Properties Company

Hunan Sanyou Environmental Technology Co., Ltd

Other

Chinese Academy of Sciences

Eaton Intelligent Power Limited

Georgia Tech Research Corporation

Semiconductor Manufacturing International (shanghai) Corporation

Easton Corporation

Semiconductor Manufacturing Intl. (beijing) Corp.

Thyssenkrup Presta Shanghai Co., Ltd.

Semiconductor Manufacturing Lntl. (shanghai) Corp.

Corning Research & Development Corporation

Thyssenkrupp Presta Shanghai Co., Ltd.

Bin Lu

Thomas G Habetler

Santosh Kumar Sharma

Ting Yan

Charles John Luebke

Steven Andrew Dimino

Xiaohu Dai

Ronald Gordon Harley

Pinjia Zhang

Xiaoli Chai

Yi Yang

Prachi Suresh Zambare

Mayura Arun Madane

Jun Wang

Peter J Theisen

Zhiyong Xu

Wei Zhou

Liang Du

Dan Hou

Hongbo Han

Jing Yi

Boran Wu

Yue Mou

Steven John Fredette

Bin Yu

Joseph Charles Zuercher

Robert Yanniello

Yi Liu

Pierre Bonvallat

Michael P Nowak

Thomas M Ruchti

Jiong Chen

Wei Xiong

Huijuan Cheng

Yahan Hua

Lei Ye

Dongxiao Wu

Yingyu Wang

Qing Liu

Zheng Zhou

Haiwen Cai

Jingwen Zhong

Peiyou Xiong

Zhiping Kuang

John Charles Merrison

Scott K Becker

Jian Wei

Qing Ye

Zhaoyong Wang

Yifeng Cui

Yingliang Peng

Sen Liu

Ying Ma

Ronghui Qu

Xiuzhong Wang

Eric Jon Olsson

Peiyou Xion

A distributed fiber-optic acoustic sensing system and a signal processing method. The distributed fiber-optic acoustic sensing system is based on a high spatial resolution distributed fiber-optic acoustic sensor. The interval between adjacent sensing units is centimeter or millimeter level. Through specific digital signal processing, signal enhancement can be realized, noise in the system and environment are suppressed, at the same time, problems such as interference fading is solved, and the sensor signal-to-noise ratio of subunits can be increased by two to three orders of magnitude. Each subunit can serve as an independent high-sensitivity sensor for sensing. The multiple subunits can form one or more new sensor arrays. The azimuth estimation and spatial orientation of signal sources can be realized by the array signal processing method.

Distributed fiber-optic acoustic sensing system and signal processing method using the same

Sofa

The present invention relates to microbial carriers for wastewater treatment, and in particular, relates to an organic composite powder carrier and its application for strengthening biological denitrification in municipal wastewater treatment. The organic composite powder carrier is compounded by a microbial carrier with a relatively large equivalent particle size and an organic alternative carbon source in the form of ultrafine powder. The composite powder carrier in the present invention includes a dedicated organic alternative carbon source, such as polyhydroxyalkanoates (PHA). The organic alternative carbon source can exclude the competitive relationship between microorganisms to ensure that denitrifying bacteria exclusively obtain electron donors required for denitrification. The composite powder carrier strengthens biological denitrification in municipal wastewater treatment, significantly improves denitrification efficiency, realizes deep biological purification of wastewater and ensures that the subject effluent complies with the strictest domestic discharge standards.

Organic composite powder carrier and application thereof in enhanced biological denitrification of municipal wastewater treatment

A recovery system of composite powder carrier in HPB municipal wastewater treatment includes a biochemical tank and a concentration tank. The composite powder carrier is added to the biochemical tank for biochemically treating on the wastewater. The mixed liquid is then made to flow into the concentration tank. The supernatant obtained after filtration is then discharged. The concentrated sludge is returned to the biochemical tank, and the excess concentrated sludge is transported to a separator. The separator separates the substances with large specific gravity from those having smaller specific gravity, and the substances with large specific gravity are recycled to the biochemical tank for reuse. Matter having smaller specific gravity is discharged. The separator can be used to separate the composite powder carriers for recycling, which improves the utilization rate of the composite powder carriers and reduces the operation cost of the HPB technology for wastewater treatment.

Recovery system of composite powder carrier in HPB municipal wastewater treatment

A method for enhancing biochemical water treatment by a powder carrier includes: (i) screening the powder carrier by removing impurities to obtain a screened powder carrier; (ii) dissolving the screened powder carrier by stirring to prepare a slurry, enabling the screened powder carrier to completely absorb moisture to obtain a soaked powder carrier slurry; (iii) adjusting the pH value and adding the soaked powder carrier slurry into a bioreactor or a biological reaction structure; (iv) distributing the soaked powder carrier slurry uniformly through a hydraulic agitation; (v) loading a microorganism on the inner pore and wrapping on the surface of the soaked powder carrier slurry to obtain powder-loaded biological floccules; (vi) settling the powder-loaded biological floccules in a sedimentation zone and separating the powder carrier from the microorganism for reuse.

Method for enhancing biochemical water treatment by powder carrier

The present invention discloses a filtering device used for removing impurities in a mixture of biological diatomite, which relates to the technical field of sewage treatment. This device includes a plurality of deflectors evenly distributed in multiple layers in the vertical direction. Each deflector includes a shell and a top plate. There is a filter unit symmetrically arranged on the left and right sides of each deflector. The top of the shell is covered with a top plate hinged with the depressed plate. The bottom of the shell is provided with water inlets which communicate with the shunt pipe, and the upper parts of the left and right side walls of the shell are provided with overflow ports. The shell also has a plurality of diversion folding plates located below the overflow ports and vertically staggered and distributed on the left and right side walls. The filter unit includes an inclined water guiding groove and a filtering plate.

Filtering device for removing impurities in a mixture of biological diatomite

An apparatus for connecting an electric machine and a worm for an electric power steering system, including an electric machine, an electric machine shaft connected to the electric machine, and a worm. An end of the electric machine shaft is provided with a first mounting flange, and an end of the worm is provided with a second mounting flange. The apparatus includes at least one disk between the first mounting flange of the electric machine shaft and the second mounting flange of the worm. The apparatus for connecting an electric machine and a worm for an electric power steering system provided in the present invention is structurally simple, and at the same time transfers electric machine torque with high efficiency, and can effectively compensate for radial deviation and axial deviation between the electric machine shaft and a worm shaft.

Motor and worm connection device for electric power steering system

A method identifies electric load types of a plurality of different electric loads. The method includes providing a support vector machine load feature database of a plurality of different electric load types; sensing a voltage signal and a current signal for each of the different electric loads; determining a load feature vector including at least six steady-state features with a processor from the sensed voltage signal and the sensed current signal; and identifying one of the different electric load types by relating the load feature vector including the at least six steady-state features to the support vector machine load feature database.

System and method for electric load identification and classification employing support vector machine

The present disclosure relates to semiconductors and low dropout regulator (LDO) circuits. A LDO circuit may include first and second adjustment pipes and first and second error amplifiers. When an output voltage outputted by the output end of the LDO circuit is smaller than a reference voltage, the first error amplifier controls the first adjustment pipe to be turned on, and the second error amplifier controls the second adjustment pipe to be turned off. Alternative, when the output voltage is greater than the reference voltage, the first error amplifier controls the first adjustment pipe to be turned off, and the second error amplifier controls the second adjustment pipe to be turned on.

Low dropout regulator (LDO) circuit

A semiconductor device includes a P-type substrate, and an N-well in the P-type substrate. A first N+ diffusion region is located in the P-type substrate, and a first P+ diffusion region is located in the N-well. A second P+ diffusion region is located across a boundary between the P-type substrate and the N-well. A first gate electrode overlies the N-well between the first P+ diffusion regions and the second P+ diffusion region. A second gate electrode overlies the P-type substrate between the second P+ diffusion region and the first N+ diffusion region. The first P+ diffusion region, the N-well, the P-type substrate, and the first N+ diffusion region form an SCR (Silicon-Controlled rectifier) device. The first P+ diffusion region, the second P+ diffusion region, and the first gate electrode form a PMOS transistor. The second P+ diffusion region, the first N+ diffusion region, and the second gate electrode form a gated diode.

Semiconductor device and an electronic apparatus

A system and method for detecting cavitation in pumps for fixed and variable supply frequency applications is disclosed. The system includes a controller having a processor programmed to repeatedly receive real-time operating current data from a motor driving a pump, generate a current frequency spectrum from the current data, and analyze current data within a pair of signature frequency bands of the current frequency spectrum. The processor is further programmed to repeatedly determine fault signatures as a function of the current data within the pair of signature frequency bands, repeatedly determine fault indices based on the fault signatures and a dynamic reference signature, compare the fault indices to a reference index, and identify a cavitation condition in a pump based on a comparison between the reference index and a current fault index.

System and method of detecting cavitation in pumps

A system and method for determining electric motor efficiency includes a monitoring system having a processor programmed to determine efficiency of an electric motor under load while the electric motor is online. The determination of motor efficiency is independent of a rotor speed measurement. Further, the efficiency is based on a determination of stator winding resistance, an input voltage, and an input current. The determination of the stator winding resistance occurs while the electric motor under load is online.

System and method to determine electric motor efficiency using an equivalent circuit

A system and method for controlling an AC motor drive includes a control system programmed with an algorithm configured to optimize operation of the motor drive. Specifically, the control system is programmed to input an initial voltage-frequency command to the drive. The initial voltage-frequency command includes a voltage reference and a frequency reference corresponding to an operating point of an initial voltage/frequency (V/Hz) curve. The control system monitors a real-time output of the drive, modifies the voltage reference based on the real-time output of the drive, and transmits a modified voltage-frequency command to the drive. The modified voltage-frequency command corresponds to an operating point of a modified V/Hz curve defined by the modified voltage reference and the initial V/Hz curve.

System and method of dynamic regulation of real power to a load

A system and method for determining rotor speed of an AC induction machine is disclosed. The system is programmed to estimate a rotor speed of the induction machine according to a linear speed estimation algorithm and based on name plate information (NPI) of the induction machine and parameters of the AC induction machine during operation thereof. The rotor speed estimation system is also programmed to estimate a rotor speed of the AC induction machine according to a frequency-domain signal processing algorithm and determine if the rotor speed estimated thereby is valid. If the rotor speed estimated by the frequency-domain signal processing algorithm is valid, then a tuned rotor speed of the AC induction machine is estimated according to the linear speed estimation algorithm and based, in part, on the rotor speed estimated by the frequency-domain signal processing algorithm.

System and method of speed detection in an AC induction machine

A multi-standard compatible electric vehicle supply equipment includes a plurality of different electric vehicle connectors each of which corresponds to one of a plurality of different electric vehicle standards. A power converter inputs alternating current power and includes an output to output direct current power. A circuit is structured to selectively electrically connect a source of alternating current power to a number of the electric vehicle connectors, selectively electrically connect the output of the power converter to a selected one of the different electric vehicle connectors, employ a plurality of different communication protocols for the different electric vehicle connectors, detect connectivity of one of the different electric vehicle connectors with an electric vehicle and responsively select one of a plurality of different charging modes, and communicate with the electric vehicle through the selected one of the different electric vehicle connectors.

Multi-standard, alternating current or direct current compatible electric vehicle supply equipment

Growing community of inventors

Shanghai, China

Bin Lu