International Business Machines Corporation

Petrochina Company Limited

Microsoft Technology Licensing, LLC

China University of Petroleum

Boe Technology Group Co., Ltd.

Beijing Baidu Netcom Science Technology Co., Ltd

Beijing Boe Sensor Technology Co., Ltd.

China University of Mining and Technology (CUMT)

University of Science and Technology Beijing

Institute of Pharmacology and Toxicology Academy of Military Medical Sciences Pla China

China University of Geosciences (beijing)

Research Institute of Petroleum Exploration & Development

Science and Technology Research Institute Ltd., Petro China

He H Liu

Zhong Xian Li

Hua Fang Tan

Shao Chun Li

Steven M Kagan

Kathryn Allyn Bassin

Susan Eileen Skrabanek

Jian Ding

Sheng Huang

Howard M Hess

Jun Zhu

Li Wang

Caili Dai

Jianming Li

Guang Zhao

Mingwei Zhao

Yining Wu

Susan E Smith

Xiaodan Liu

Xiaoqi Wang

Yongpeng Sun

Xu Jin

Alastair Wolman

Jing Zhao

Yongguang Zhang

Yang Gao

Kun Tan

Yao Liang Chen

Liang Sun

Stefan Saroiu

Bao Zhang

Chao Ma

Himanshu Raj

Jiansong Zhang

Zhifeng Zhang

Jia Zhong Wu

Jian Deng

Kuang Hu

Jiangang Deng

DaFei Shi

Hang Jiao

Xiaohan Pei

Qinghai Yang

Fuchao Sun

Lichen Zheng

Chao Px Li

Xitong Wang

Jing Wang

Xin Wang

Chao Li

Zheng Chen

Feng Qu

Xiao Ling Chen

Chuncheng Che

Krishna Chaitanya Ratakonda

Fan Yang

Wei Liu

Shuo Wang

Zhe Chen

Yan Lu

Yan Huang

Heng Wang

Haocheng Jia

Liu Yang

Jiang Yi Liu

Yi Ding

Qing You

Naomi Meiko Mitsumori

Wei Zhu

Shuo Yang

Chunnan Feng

Patrick Leo Glenski

Hao Guo

Yunnan Jin

Liang Guo

Ming Yue

Yifei Liu

Weiyao Zhu

Haoyang Zhang

Bohua Zhong

Lin Li

Zhiyong Song

Wenxue Ma

Yunfeng Liu

Debin Kong

Qing Yu Pei

Xinhua He

Mingwei Gao

Baoshan Guan

Sihui Bao

Ji Fang

Bingbing Li

Qinglin Shu

Zi Wen Zhang

Xuepeng Wu

Zhongliang Xu

Yongguang Wang

Faliang Dai

Zenglin Wang

Aishan Li

A vehicle frame and a vehicle are provided. The vehicle frame includes the vehicle frame includes a frame body and an antenna device, and the frame body includes a plurality of supporting beams fixedly connected and is further provided with a protection part; and the antenna device is mounted on the frame body, and the protection part is disposed outside the antenna device, to block the antenna device from an object in an external environment.

Vehicle frame and vehicle

The present disclosure provides a phase shifter, an antenna and an electronic device, and belongs to the field of communication technology. The phase shifter includes a plurality of phase shifting units, a first power division network and a second power division network; each phase shifting unit includes a first transmission structure and a second transmission structure; the first power division network includes a first feeding port and a plurality of second feeding ports; the second power division network includes a third feeding port and a plurality of fourth feeding ports; and the first transmission structure of the phase shifting unit is electrically connected to one second feeding port; the second transmission structure of the phase shifting unit is electrically connected to one fourth feeding port.

Phase shifter, antenna and electronic device

An antenna includes a first substrate and a second substrate oppositely arranged; the first substrate includes: a first dielectric substrate having a first surface and a second surface oppositely arranged; a reference electrode layer on the first surface; at least one first radiation part on the second surface and having an orthographic projection on the first dielectric substrate at least partially overlapping that of the reference electrode layer; and at least one feeding structure on the second surface, electrically connected to the first radiation part, and having an orthographic projection on the first dielectric substrate at least partially overlapping that of the reference electrode layer; the second substrate includes: a second dielectric substrate opposite to the second surface; and at least one second radiation part on the second dielectric substrate, and each having an orthographic projection on the first surface within that of one first radiation part.

Antenna and communication system

A device and a method for evaluating damage of high-temperature and high-humidity gas to a surrounding rock porous structure are provided. The device includes a rock sample clamper, a temperature control device, a pressurizing device, a gas mixing injection device, a CT scanning device and a low-temperature nitrogen adsorption device. By simulating the gas rock reaction under the conditions of in-situ temp., pressure and gas, using CT scanning device to visually monitor and analyze the reaction condition of gas and tunnel surrounding rock and the change condition of porous structure, and using low-temperature nitrogen adsorption test to obtain porous structure parameters change condition before and after reaction of gas and tunnel surrounding rock, and the damage evaluation index of the porous structure is established.

Device and method for evaluating damage to surrounding rock porous structure due to high-temperature and high-humidity gas

Integrated mounted frame for an unmanned vehicle

A preparation method of a nanotube hierarchically structured lithium titanate includes the steps of: S1. dispersing a titanium source into an aqueous solution containing lithium hydroxide and hydrogen peroxide and stirring to obtain a mixed solution; S2. subjecting the mixed solution obtained in step S1 to a reaction by heating to obtain a precursor having a nanowire-like structure; S3. subjecting the precursor having a nanowire-like structure obtained in step S2 to separation and drying; S4. subjecting the precursor having a nanowire-like structure after separation and drying to a low-temperature annealing treatment; S5. subjecting the precursor having a nanowire-like structure after the low-temperature annealing treatment to a liquid thermal reaction to obtain the nanotube hierarchically structured lithium titanate. The method includes a simple process and easily controllable process parameters, and may be easily scaled-up for industrial production.

Preparation method of a nanotube hierarchically structured lithium titanate and use and product thereof

A process for preparing a titanic acid salt, titanic acid, and titanium oxide having a controllable particle size and a hierarchical structure, wherein the process includes the steps of: preparing a titanium-containing peroxo-complex solution; adding a basic metal compound to the titanium-containing peroxo-complex solution to form a mixture solution; adding one of polyvinyl alcohol, hydroxypropyl methyl cellulose, and polyethylene glycol to the mixture solution to form a precursor dispersion; and subjecting the precursor dispersion to a solvothermal reaction to obtain the titanic acid salt having a hierarchical structure. The process for preparing a titanic acid salt, titanic acid, and titanium oxide having a controllable particle size and a hierarchical structure, can not only realize the regulation of morphology and particle diameter of constituent units in the hierarchical structure, but also can achieve the regulation of particle size in the hierarchical structure.

Process for preparing titanic acid salt, titanic acid, and titanium oxide having controllable particle size and hierarchical structure

The present invention provides a linear porous lithium titanate material, preparation and product thereof. The material comprises a lithium titanate material having a crystal phase which is a spinel type, wherein the lithium titanate material has a linear structure having an aspect ratio of greater than 10, and the linear lithium titanate material has a porous structure; wherein the linear porous lithium titanate material has a structure composed of a plurality of particles having an oriented growth direction. The material has a long-axis structure which facilitates the effective migration of electrons, a porous structure which facilitates the rapid intercalation and deintercalation process of lithium ions, sodium ions or potassium ions, and a large specific surface area which facilitates the contact area between the electrolyte solution and the electrodes and reduces the current density, thus is excellent in a rapid charge-discharge performance of the battery.

Linear porous lithium titanate material, preparation and product thereof

A simulation method for flow field of multi-stage fracturing on horizontal well in tight oil reservoir is provided. The tight oil reservoir comprises multiple horizontal wells with multi-stage fracturing, and for any horizontal well of the multiple horizontal wells, the method comprises: establishing a seepage mathematical model involving threshold pressure gradient according to reservoir physical property data and production data of the horizontal well, and determining formation pressure distribution of the horizontal well after multi-stage fracturing production according to the seepage mathematical model; determining formation pressure field distribution of the horizontal well after multi-stage fracturing production according to the formation pressure distribution and basing on principle of complex potential superposition; and establishing a criterion for identifying effective producing range of the horizontal well according to the formation pressure field distribution, and determining flow field range of the horizontal well according to the criterion.

Simulation method for flow field of multi-stage fracturing on horizontal well in tight oil reservoir

Technologies pertaining to limiting access to secret data through utilization of sensor-based constraints are described herein. A sensor-based constraint is a constraint that can only be satisfied by predefined readings that may be output by at least one sensor on a mobile computing device. If the sensor on the mobile computing device outputs a reading that satisfies the sensor-based constraint, secret data is provided to a requesting application. Otherwise, the requesting application is prevented from accessing the secret data.

Sealing secret data with a policy that includes a sensor-based constraint

A CO-sensitive fracturing and displacement fluid contains a surfactant, an auxiliary agent, water, and CO, wherein COis liquid and/or supercritical CO. The CO-sensitive fracturing and displacement fluid provided by the invention does not flow back after completion of fracturing construction, and the gel breaking fluid displacement is carried out after soak for a period of time to improve the tight oil recovery ratio. The CO-sensitive fracturing and displacement fluid exerts the 'one-agent multi-purpose' function of sand carrying, COenergization and oil displacement, surfactant imbibition and oil discharge of a fracturing-displacement system in different development and production stages, and achieves the dual goals of expanding the utilization degree of tight oil and improving the displacement efficiency of the tight oil, which can effectively reduce costs and achieve the goal of unified, highly efficient and green development of oil and gas fields.

CO-sensitive fracturing and displacement fluid and method of making the same and method for fracturing and displacement of tight oil reservoir

Methods of code conversion are provided. Aspects include obtaining a first code point from a source data string in a first character encoding, wherein the source data string is to be converted to a target data string in a second character encoding. A target code point corresponding to the first code point is looked up in a map table, wherein the target code point is in the second character encoding. It is determined whether the first code point is a first combining character in response to receiving a lookup failure generated from the looking up operation. A combination unit having the first combining character and a base character next to the first combining character in the source data string is identified in response to determining that the first code point is the first combining character. The combination unit is converted to a substitute character in the target data string.

Code conversion

A method includes generating a test model based on at least one of test group dependencies and test group constraints and generating a resource base. The method includes generating a cost model and generating a resource allocation plan based on the test model, the resource base, and the cost model.

System and method for resource modeling and simulation in test planning

A method, computer program product, and system is disclosed for generating an Interactive Voice Response (IVR) system tree. A plurality of IVR system options from the IVR system are received. A first set of selections of the IVR system options are received from the user. A second set of selections of the IVR system are received, comprising at least a second set of subtrees. In response to identifying a plurality of subtrees of the second set of subtrees that are associated with the root node, the identified plurality of subtrees are mapped to the option tree. An IVR combination tree is generated. A visualization IVR combination tree is generated for display, in response to receiving a second user request for access to the IVR system. A target service associated with a user input selection of at least one end node of the visualized IVR combination tree is accessed.

End user experience via distributed option tree generation

The present invention relates to the fracturing field, and discloses a water solution, a clean fracturing fluid, and a method for fracturing reservoir. The water solution contains organic acid amidopropyl dimethylamine, an additive, and water, wherein, the additive is at least one of salicylate, cis-butenedioic acid, o-phthalic acid, dodecyl sulfonate, p-toluene sulfonate, and benzoate. The water solution has high carbon dioxide response performance, a clean fracturing fluid that contains the water solution has superior cyclic utilization performance, and the fracturing fluid can solve the problems of conventional fracturing fluids used in fracturing stimulation of oil and gas reservoirs, including incomplete gel breaking, severe damages to the reservoir, and severe contamination of flow-back fluid, etc.

Water solution, clean fracturing fluid and method for fracturing reservoir

Growing community of inventors

Guangzhou, China

He H Liu