Shandong University

Qingdao Eastsoft Communication Technology Co., Ltd.

Shanghai Haier Integrated Circuit Co., Ltd.

China University of Petroleum

Qingdao Daneng Environmental Protection Equipment Co., Ltd.

Qingda Low Carbon Green Hydrogen Industrial Technology Research Institute (Qingdao) Co., Ltd.

Shanghai Eastsoft Microelectronics Co., Ltd.

Rui Wang

Song Pan

Jian Cui

Yajun Hu

Jun Yuan

Yong Wang

Min Wang

Chunyuan Ma

Jingcai Chang

Shengyu Feng

Guangsheng Chen

Xian Shi

Jiahao Zhang

Lianhai Zhang

Yingjie Liu

Dengxu Wang

Zhuo Li

Dianshi Xiao

Shusheng Li

Jinglan Hong

A pore pressure prediction method for fine-grained hybrid sedimentary rock based on variable P-wave velocity includes: carrying out a P-wave velocity test of rock under different effective stresses, determining a function form of the relationship between acoustic velocity and effective stress, fitting the parameters in the function by optimization, and establishing an evaluation model of effective stress influence term by lithology. According to the measured formation pressure data and the effective stress influence term model, the acoustic velocity background value is deduced, the logging curve is preferred, and the acoustic velocity background value logging evaluation model is established. According to the logging curves of DT and DEN, combined with the lithology identification results, the acoustic velocity background value is calculated, and then the effective stress of the formation is obtained, and then the pore pressure is determined according to the overburden pressure.

Pore pressure prediction method and system for fine-grained hybrid sedimentary rock based on variable p-wave velocity

A system and method deliver fluidized powder based on flue gas carrying waste slag and instant cooling steel slag. A first flue gas pipeline receives pressurized CO-rich flue gas and in fluid communication with a fluidization air pipeline, a pressurization air pipeline and a supplementary air pipeline respectively and through them enters an upper discharge bin; a second flue gas pipeline receives the pressurized CO-rich flue gas and in fluid communication with a gas-gas mixer, a dense phase discharge guide pipe first end extends into the upper discharge bin and receives high-pressure dense phase gas-powder flow of CO-rich flue gas, and a dense phase discharge guide pipe second end is connected to the gas-gas mixer; a variable-pitch twin screw sealed conveyor discharge end extends into an upper discharge bin internal space, and is provided with an upwardly inclined gas-blocking segment.

System and method for delivering fluidized powder based on flue gas carrying waste slag and instant cooling steel slag

A preparation method of functional silanes comprises: substance A and substance B are added in a three-necked bottle and a certain amount of solvent is added; the resultant mixture is stirred for 0.5-24 h in the presence of catalyst under an atmosphere of argon, resulting in the crude product; after removing the remaining solvent and catalyst, the residual product is purified by chromatographic column to obtain functional silanes; the substance A is an alkene-containing silane and the substance B is an alcohol; functional silanes with various structures can be prepared, and their structures can be controlled by regulating the ratio of substance A and substance B, thereby providing ideas for the preparation of different silanes and the structural design of silane coupling agents.

Preparation method of functional silanes

A receiving circuit, a transmitting circuit, a micro-controller, and a method for power line carrier communication. The receiving circuit includes: an analog amplifier, a receiving filter, an analog-to-digital converter, a digital mixer, a digital filter, and a digital demodulator connected successively. The transmitting circuit includes: a digital modulator, a gain controller, a digital-to-analog converter, a transmitting filter, and a transmitting amplifier connected successively. The micro-controller includes a central processor and the receiving circuit or the transmitting circuit. The method for power line carrier communication can be implemented based on the receiving circuit or the micro-controller. The receiving circuit, the transmitting circuit, the micro-controller, and the method for power line carrier communication provided by present invention solve the defect of supporting only one modulation or demodulation mode in a conventional power line carrier communication system, and can process a power line carrier signal in different modulation or demodulation modes.

Receiving circuit, transmitting circuit, micro-controller and method for power line carrier communication

The present invention provides a micro-controller, a processing method and device for power line carrier signal reception, where the method includes: an analog mixer mixes received power line carrier signals, an analog filter filters the mixed power line carrier signals, an analog-to-digital converter converts the filtered signals, a digital mixer mixes converted signals, a digital filter filters the mixed signals and a digital demodulator demodulates the filtered signals to obtain base band data. The present invention also provides a corresponding device and a micro-controller including the device. The technical solution of the present invention can modulate the carrier signals of any frequency to a fixed frequency through two-stage frequency mixing, so that demodulation of power line carrier signals with any frequency is possible.

Micro-controller, processing method and device for power line carrier signal reception

Growing community of inventors

Qingdao, China

Rui Wang