Sun Pleasure Company Limited

Nuctech Company Limited

Other

Tsinghua University

Beihang University

University of Science and Technology Beijing

Lei Zheng

Vincent W S Lau

Zhiqiang Chen

Yuanjing Li

Ziran Zhao

Wanlong Wu

Wenguo Liu

Yinong Liu

Wenbo Du

Jieqing Yang

Xin Zhao

Yingkang Jin

Bin Sang

Xianbin Cao

Robert C Meck

Xilei Luo

Liang Xu

Zongjun Shen

Yumeng Li

Jie Zheng

Hongliang Liu

Jian Dong

Lingbo Qiao

Biyue Li

Jianyuan Chen

Yakun Zhao

Ye Meng

A vacuum solution and aging treatment process for improving high-temperature plasticity of GH4738 rings includes: heating a GH4738 ring to 1020&#xb0; C. to 1030&#xb0; C. in a vacuum environment; injecting nitrogen; subjecting the GH4738 ring to aging treatment at 740&#xb0; C. to 750&#xb0; C.; and taking out and air-cooling the GH4738 ring. The method realizes the uniform distribution of the intragranular &#x3b3;' precipitates and the intergranular MCcarbides in the GH4738 ring after heat treatment. The elongation and area reduction of the alloy ring stretched at 540&#xb0; C. after heat treatment are 30% and 34% respectively, which are 25% and 36% higher than those before process optimization respectively; and that at 760&#xb0; C. are 49% and 70% respectively, which are 32% and 27% higher than those before process optimization respectively. The index requirements can be fully met. This process is applicable to GH4738 rings, which have a high requirement on high-temperature plasticity after heat treatment.

Vacuum solution and aging treatment process for improving high-temperature plasticity of GH4738 rings

The disclosure provides a dynamic recovery method and system for UAVs and storage medium. On the basis of obtaining the environmental information of UAVs, combined with different factors such as the following task quantity of each UAV, the distance from the current position of each UAV to the recovery point, current performance of each UAV, total cost function is constructed, and optimization is carried out through improved particle swarm optimization algorithm. Then on the premise of the lowest recovery cost, the priority of each UAV is obtained. For the ordered UAV, the route to the recovery point is determined. At the same time, it is necessary to consider conflict resolution of UAVs when encountering obstacles in the flight process, as well as the possible failure in line recovery. At this time, it is necessary to reorder some hovering UAVs to ensure flight safety of UAVs and robustness of the algorithm.

Dynamic recovery method and system for UAVs and storage medium

Provided are flight conflict resolution method and apparatus based on ultimatum game theory. The method includes: obtaining a first priority of a first aircraft and a second priority of a second aircraft when it is determined that a minimum distance between the first aircraft and the second aircraft within a preset time period is less than a preset distance; determining a first angle and a second angle of the first aircraft and a fourth angle and a fifth angle of the second aircraft according to the first priority, the second priority, and a preset limiting deflection angle; determining a third angle of the first aircraft and a sixth angle of the second aircraft; determining a first deflection angle of the first aircraft and a second deflection angle of the second aircraft according to the first and second priorities, the first, second, third, fourth, fifth and sixth angles.

Flight conflict resolution method and apparatus based on ultimatum game theory

Provided is a spiral finned condenser. The spiral finned condenser includes a condensing pipe and a fin. The fin is spirally wound on a surface of the condensing pipe. The condensing pipe forms a cubie structure by a plurality of turns and bends. The condenser further includes a fixing bracket which is clamped and fixed on the condensing pipe.

Spiral finned condenser

There is provided a wideband patch antenna and an antenna array. The antenna includes a dielectric substrate of a rectangle shape, a radiation patch formed on a top surface of the dielectric substrate, a coupling patch formed on the top surface of the dielectric substrate and extending from a side of the dielectric substrate to a position from the radiation patch by a distance, a metal support arranged on the lower surface of the dielectric substrate and extending from the edge of the lower surface of the dielectric substrate downward to the ground, a layer of air having a predetermined thickness being formed between the lower surface of the dielectric substrate and the ground. According to the embodiments, it is possible to improve the directivity of the wideband microstrip antenna while maintaining its small size.

Wideband microstrip antennas and antenna arrays

One aspect of the invention includes an apparatus that simultaneously displays the video input and supplementary information, having a video overlay device, and a network management module, a removable storage device and a display device coupled to the video overlay device. The network management module includes a computer or a cloud server for uploading, via network, and controlling supplementary information. The video overlay device includes a central processing unit, and a video input processing unit, a video output processing unit and local memory coupled to the central processing unit. Under a control of the central processing unit, the supplementary information is obtained from the network management module, an email sent from the network management module, or removable storage devices, and is subsequently stored in the local memory, processed and displayed in a display device.

Method of and apparatus for simultaneously displaying video input along with supplementary information

Portable energy storage and distribution device

An electrical charging system includes a charging socket and a standby battery product. The charging socket has a socket casing, and a power input interface on the socket casing and electrically connected to a first conductive contact that extends above the socket casing. The standby battery product has a battery casing with a battery housed inside the battery casing, the battery casing further including a conductive pin and a second conductive contact, with the conductive pin and second conductive contact electrically connected to the battery. When the battery casing is placed on top of the socket casing, the conductive pin is aligned with, and contacts, the first conductive contact, creating a charging path that is defined by the power input interface (which receives external power), the first conductive contact of the socket casing, the conductive pin of the battery casing, and the electricity storage unit of the battery product.

Standby battery product and stackable charging system thereof

A circuit to generate a sweep frequency signal that includes a reference frequency source to generate a reference frequency signal, a first frequency combination circuit coupled to the reference frequency source, and operative to generate a sweep frequency signal in a first frequency band based on the reference frequency signal, a second frequency combination circuit coupled to the reference frequency source, and operative to generate a sweep frequency signal in a second frequency band different from the first frequency band based on the reference frequency signal, a multiple-level switch coupled to outputs of the first frequency combination circuit and the second frequency combination circuit, and a control circuit controlling the first and second frequency combination circuits and the multiple-level switch to output the sweep frequency signal in the first frequency band and the sweep frequency signal in the second frequency band at an output of the multiple-level switch alternately.

Circuits for generating sweep frequency signal

A power supply has a generally rectangular housing that has a length of about 11 inches and a width of about 8.5 inches, with a thickness of less than 5.2 cm. A rechargeable battery is housed inside the housing, and a power bay is provided on the housing and coupled to the battery inside the housing.

Portable power supply

There is provided a waveguide horn array, a method for forming the waveguide horn array, and an antenna system. The array includes a rectangular metal plate which is processed to have a cross section comprised of a plurality of rectangular holes arranged in the length direction of the rectangular metal plate, the lower part of each hole being formed as a rectangular waveguide, and the upper part of each hole being formed as a horn; and a groove extending in the direction along which the plurality of holes are arranged and having a predetermined depth, which is formed at two sides of the holes on the top surface of the rectangular metal plate. According to the embodiments, it is possible to maintain the good properties of the antenna in terms of bandwidth and directivity, while enhancing the isolation between the transmitting antenna and the receiving antenna in the system.

Waveguide horn arrays, methods for forming the same and antenna systems

Portable battery

A portable wireless charging system is incorporated inside a carrying device that has a plurality of walls and an interior. The portable wireless charging system has a transmitter positioned at a first fixed location at an inner surface of one of the walls, a mobile power supply positioned adjacent the transmitter and electrically coupled to the transmitter, and a receiver positioned at a second fixed location at an outer surface of the one of walls, with the second fixed location aligned with the first fixed location. A barrier is positioned between the transmitter and the receiver, and a first pocket positioned at the outer surface about the second fixed location. A portable device that includes a battery to be charged can be retained inside the first pocket to be charged.

Portable wireless charging system

Growing community of inventors

Beijing, China

Lei Zheng