Rogers Corporation

Jiangsu University

Commscope Technologies LLC

Sichuan University

Nanjing Develop Advanced Manufacturing Co., Ltd.

Soochow University

State Grid Jiangsu Electric Power Company

Sichuan Sunfor Light Co., Ltd

Jiangyin Changdian Advanced Packaging Co., Ltd

Freescale Semiconductor,inc.

Chinese Academy of Sciences

Andrew Corporation

Outdoor Wireless Networks LLC

Jiangsu University of Science and Technology

Nari Technology Co., Ltd.

Li Zhang

Yajie Chen

Yujun Zhang

Xiaoyong Zhu

Xiaolei Liu

Yao Ha

Changhua Chen

Jin Liu

Hong Zhang

Ming Zhang

Yang He

Weimin Li

Dong Chen

Jinhui Chen

Li Quan

Zheng Dong

Qingyong Chen

Bojiang Chen

Zhixin Qiu

Zhiming Lai

Zhengmao Xu

Hao Chen

Kun Zhao

Xiaoyu Zhang

Jian Zhang

JianPing Wu

Ronald Joseph Brandau

Shawn P Williams

Lining Sun

Hongjie Zhang

Jianfeng Ren

Wenxian Tang

Chao Zhang

Lei Xu

Dongming Li

Haifeng Li

Robert C Daigle

Xiao Lu

Jing Zhang

Mulan Huang

Mingyang Chen

Lin Liu

Jijun Yin

Chengyu Li

Michael S White

Jianyu Luo

Yuanyao Zhou

Xiaoming Xu

Qing Chen

Xueming Li

Cheng Li

Hong Xu

Qiang Zhang

Yong Xia

Ning Wang

Kaiming Luo

Yan Xiao

Yunsong Yan

Shumei Yu

Shaolong Kuang

Zheng Wu

Yaohong Li

Haifeng Xia

Ting Zhou

Chengliang Wang

Hongxing Wang

Weiguo Fu

Jiajia Cao

Yi Mo

Honghu Li

Yujun Lu

Yonggao Ge

Feng Xue

Bangjun Wang

Guodong Cao

Xiaorong Wang

Haidong Chen

Fengfeng Zhang

Mingyang Liu

Kui Yu

Qiyu Yu

Tingting Zhu

Min Fu

Junxia Qian

Qicai Chen

Hongwei Shen

Jinzhong Li

Tingwei Pei

Zhao Zhang

Pipi Liu

Fanzhang Li

Wenle Wu

Andi Lin

Tian'an Liao

Ze Sun

Jintai Li

Lingjun He

Ziyang Huang

Leijun Song

Xiaolei Zhang

A board-to-board connector for wireless communication devices connects first and second circuit boards. The circuit board connector includes: a radio frequency coaxial cable; and a first interface and a second interface respectively connected to two opposing ends of the radio frequency coaxial cable, wherein each of the first interface and the second interface includes a housing, the housing includes a hollow main body part and a flange part located at a first end of the main body part, the main body part receives one end of the radio frequency coaxial cable at a second end opposite to the first end, the flange part is provided with one or more protruding portions, a protruding portion of the first interface is configured to connect the first interface to the first circuit board, and a protruding portion of the second interface is configured to connect the second interface to the second circuit board.

Internal printed circuit board-to-printed circuit board connector for wireless communication device

The present disclosure provides a permanent-magnet fault-tolerant in-wheel motor based on an active sensorless strategy and drive and design methods thereof. The present disclosure proposes the permanent-magnet fault-tolerant in-wheel motor drive system based on an active sensorless strategy by considering sensorless operation performance in advance in a motor design stage. The present disclosure adopts fractional-slot concentrated windings, and ingeniously arranges alternating poles, a multi-layer magnetic barrier, and auxiliary permanent magnets, thus improving a sensorless operation accuracy of the motor while ensuring fault tolerance of the motor. The present disclosure proposes a frequency-band-adaptive secondary harmonic suppression strategy at a control layer to suppress an influence of a secondary salient harmonic on position observation and improve dynamic response performance of a system.

Permanent-magnet fault-tolerant in-wheel motor based on active sensorless strategy and drive and design methods thereof

Stackable storage units

A unified open-circuit fault-tolerant control method for a vector control (VC) drive system and a direct torque control (DTC) drive system of a five-phase permanent magnet fault-tolerant motor are provided. The control method adopts a unified open-circuit fault-tolerant control strategy. The unified open-circuit fault-tolerant control strategy includes: obtaining a predetermined torque, obtaining predetermined direct-axis and quadrature-axis voltages, analyzing a fault-tolerant mechanism to obtain fault-tolerant currents, obtaining winding phase voltages in a fault mode based on the fault-tolerant mechanism, and obtaining fault-tolerant voltages based on a back-electromagnetic force (EMF). The unified open-circuit fault-tolerant control strategy suitable for the VC drive system and the DTC drive system is proposed based on chaotic pulse width modulation (CPWM). The control method essentially reveals the fault-tolerant mechanism, and solves the problem of variable and complicated fault-tolerant control schemes corresponding to various basic control algorithms.

Unified open-circuit fault-tolerant control method for vector control drive system and direct torque control drive system of five-phase permanent magnet fault tolerant motor

Stackable storage unit

A verification method of an allelopathic inhibition mechanism based on ecological stoichiometric equilibrium interference is disclosed. By taking ecological stoichiometric characteristics and growth characteristics ofunder an equilibrium state as a control, a relative coefficient of variation (RCv) is used to characterize an interference intensity of different intensities of allelopathic stress on ecological stoichiometric equilibrium of theand an inhibitory intensity of different intensities of allelopathic stress on growth of the. Then, through correlation analysis among parameters including the intensity of the allelopathic stress, the ecological stoichiometric equilibrium interference, and growth inhibition, a method is provided to verify whether a new mechanism of allelopathic inhibition based on the ecological stoichiometric equilibrium interference exists.

Verification method of allelopathic inhibition mechanism based on ecological stoichiometric equilibrium interference

Described herein is a nanocrystalline ferrite having the formula NiMCoFeO, wherein M is at least one of Zn, Mg, Cu, or Mn, x is 0.01 to 0.8, y is 0.01 to 0.8, and z is &#x2212;0.5 to 0.5, and wherein the nanocrystalline ferrite has an average grain size of 5 to 100 nm. A method of forming the nanocrystalline ferrite can comprise high energy ball milling.

Nanocrystalline cobalt doped nickel ferrite particles, method of manufacture, and uses thereof

A magnetic field coupling analysis and modulation method for a field-modulated permanent magnet motor based on a harmonic group is provided. The method includes: if a permanent magnet excitation source includes an outer surface-mounted permanent magnet and an intermediate permanent magnet and an armature magnetic source is an outer armature winding, acquiring a normal flux density component of an outer air-gap magnetic field of the motor; if the permanent magnet excitation source includes an inner surface-mounted permanent magnet and the intermediate permanent magnet and the armature magnetic source is an inner armature winding, acquiring a coupled flux density component of the outer air-gap magnetic field; calculating a coupling effect ratio, a harmonic characteristic factor, and a harmonic coupling efficiency in sequence from an air-gap flux density; determining positive and negative coupled harmonics according to the harmonic coupling efficiency; and establishing positive and negative coupled harmonic groups respectively.

Magnetic field coupling analysis and modulation method for field-modulated permanent magnet motor based on harmonic group

In an aspect, a CoZ ferrite has the formula: (BaSr)CoMFeO. M is at least one of Mo, Ir, or Ru. The variable x can be 0 to 0.8, or 0.1 to 0.8. The variable y can be 0 to 0.8, or 0.01 to 0.8. The variable z can be &#x2212;2 to 2. The CoZ ferrite can have an average grain size of 5 to 100 nanometers, or 30 to 80, or 10 to 40 nanometers as measured using at least one of transmission electron microscopy, field emission scanning electron microscopy, or x-ray diffraction.

Z-type hexaferrite having a nanocrystalline structure

A multilayer film includes a substrate; a first magnetic layer disposed on the substrate and a second magnetic layer disposed on the first magnetic layer. The first magnetic layer includes FeNBM, wherein M is Si, Ta, Zr, Ti, Co, or a combination thereof. The second magnetic layer includes FeNor FeNTa. The multilayer magnetic film has, over a frequency range of 50 MHz to 10 GHz, a magnetic permeability of greater than or equal to 1800 over a selected frequency band in the frequency range; a magnetic loss tangent of less than or equal to 0.3 over a selected frequency band in the frequency range; and a cutoff frequency of greater than or equal to 1 GHz, or greater than or equal to 2 GHz.

High frequency magnetic films, method of manufacture, and uses thereof

A magnetic fiber comprises a core comprising a spinel ferrite of formula MeMFeO, wherein Me is Mg, Mn, Fe, Co, Ni, Cu, Zn, or a combination thereof, x=0 to 0.25, and y=1.5 to 2.5, wherein the core is solid or at least partially hollow; and a shell at least partially surrounding the core, and comprising a MeMFealloy, wherein when the core is solid with Me=Ni and x=0 the magnetic fiber has a diameter of greater than 0.3 micrometer. A magneto-dielectric material having a magnetic loss tangent of less than or equal to 0.03 at 1 GHz comprises a polymer matrix; and a plurality of the magnetic fibers.

Magneto-dielectric materials, methods of making, and uses thereof

A grain-oriented M-type hexagonal ferrite has the formula MeFeO, and a dopant effective to provide planar magnetic anisotropy and magnetization in a c-plane, or a cone anisotropy, in the hexagonal crystallographic structure wherein Me is Sr, Baor Pb, and wherein greater than 30%, preferably greater than 80%, of c-axes of the ferrite grains are aligned perpendicular to the c-plane.

Textured planar m-type hexagonal ferrites and methods of use thereof

In an aspect, a composition comprises a plurality of magnetic particles. The magnetic particles each independently comprise a nickel ferrite core having the formula NiMPeO, wherein M is at least one of Zn, Mg, Co, Cu, Al, Mn, or Cr; x is 0 to 0.95, and y=&#x2212;0.5 to 0.5; and an iron nickel shell at least partially surrounding the core, wherein the iron nickel shell comprises iron, nickel, and optionally M. In another aspect, a method of forming the magnetic particles comprises heat treating a plurality of nickel ferrite particles in a hydrogen atmosphere to form the plurality of magnetic particles having the iron nickel shell on the nickel ferrite core. In yet another aspect, a composite can comprise the magnetic particles and a polymer.

Magnetic particles, methods of making, and uses thereof

The present invention relates to a boot and connector assembly. The boot has a through hole passing therethrough and a boot body enclosing the through hole, the boot body comprising: a neck sealing portion presenting a substantially cylindrical shape, wherein the neck sealing portion has an inner diameter maintained substantially constant; a body portion located at the proximal side of the neck sealing portion and presenting a generally cylindrical shape, wherein the body portion has an inner diameter and an outer diameter that are both greater than the inner diameter and the outer diameter of the neck sealing portion; and a gap passing portion connecting the neck sealing portion to the body portion and having a substantially frustoconical shape, wherein the gap passing portion has an inner diameter gradually increasing from the inner diameter of the neck sealing portion to the inner diameter of the body portion, and an outer diameter gradually increasing from the outer diameter of the neck sealing portion to the outer diameter of the body portion. The boot of the present disclosure effectively solves the problem that the boot interferes with other components so that the boot is unable to extend to the antenna panel when the mounting space is small, and also has the advantages of simple to manufacture, convenient to mount and high efficiency.

Boot sealing a cable connector

A joint locking mechanism of a passive robotic arm includes: an output assembly, including a joint output shaft, and a friction disk fixed to the joint output shaft; a braking assembly, including a threaded shaft arranged coaxially with the joint output shaft, a threaded sleeve threaded to the threaded shaft, a rotary disk connected fixedly to the threaded shaft, an end cap rotatable relative to the rotary disk, and a scroll spring generating a rotational force on the threaded shaft. The scroll spring has one end connected fixedly to the end cap and the other end connected to the rotary disk or the threaded shaft. The threaded sleeve is abutted tightly against the friction disk.

Joint locking mechanism of passive robotic arm

Growing community of inventors

Jiangsu, China

Li Zhang