Qingdao University of Technology

Hisense USA Corporation

Hisense International Co., Ltd.

Hisense Co., Ltd.

Qingdao Sisa Abrasives Co., Ltd.

Shenyang Hongyang Precision Ceramics Co., Ltd.

China University of Petroleum

Qingdao Agricultural University

Crrc Qingdao Sifang Rolling Stock Research Institute Co., Ltd. (cn)

Research Institute of Exploration and Development, Shengli Oilfield Branch, Sinopec

Qingdao Doublestar Tire Industrial Co., Ltd. (cn)

Hisense Laser Display Co., Ltd.

Crrc Qingdao Sifang Rolling Stock Research Institute Co., Ltd.

Zhen Wang

Changhe Li

Yanbin Zhang

Min Yang

Yali Hou

Huajun Cao

Bingheng Lu

Xin Cui

Han Zhai

Teng Gao

Naiqing Zhang

Xiaoming Wang

Qidong Wu

Mingzheng Liu

Mingcun Shi

Lei Han

Baoteng Huang

Xiaohong Ma

Xiangyang Ma

Jun Wang

Runze Li

Dabo Guo

Xin Zhang

Bo Chen

Lihua Ma

Guangzhong Lv

Yongpeng Ren

Gang Cao

Qingyu Meng

Xiaoduo Cui

Ying Wei

Lingjun Wang

Feng Zhang

Hongxia Wang

Xiaohong Li

Guiqin Sun

Xiaochao Dai

Xiuzhong Wang

Yucui Zhang

Fengzhou Wang

Baoda Xing

Jiansong Huang

Fangliang Zhang

Chuanbao Zhang

Shiwei Huang

Tongyu Yao

Zhongwei Wu

Chuanzhi Cui

Provided is a method for continuous detection of a miRNA by a metal-organic framework (MOF)-based nanozyme, including the following steps: step 1, conducting a duplex-specific nuclease (DSN)-assisted signal amplification strategy; and step 2, conducting the flow analysis on a target using a flow injection-batch method, and recording a differential pulse voltammetry (DPV) response of a biosensor in a batch mode; and step 3, in the flow mode, conducting competitive elution on a MOF/indium tin oxide (ITO) electrode with a complementary DNA (cDNA) as a mobile phase. In the present invention, a two-dimensional MOF-based nanozyme is simply synthesized by an ultrasonic method and then applied to a homogeneous electrochemical biosensor without a complicated electrode modification process, showing a continuous detection function, a high selectivity and a desirable sensitivity.

Homogeneous detection method for continuous detection of miRNA by metal-organic framework (MOF)-based nanozyme

The present invention relates to a powder dry-pressing molding device and method. The powder dry-pressing molding device includes a rack, the rack is provided with an first pressure mechanism, a workbench mechanism and a second pressure mechanism in sequence along an up-and-down direction, and one side of the workbench mechanism is provided with a scraping mechanism; the first pressure mechanism includes an upper slide block capable of moving up and down, and an upper punch is disposed at a bottom of the upper slide block; the workbench mechanism includes a middle mold seat, a workbench is fixed above the middle mold seat, a middle mold is disposed inside the middle mold seat, and a mandrel runs through the inside of the middle mold; the second pressure mechanism includes a lower slide block capable of moving up and down, a lower punch is fixed at the top end of the lower slide block, and the lower punch is capable of extending into a compacting space between the mandrel and the middle mold; and the scraping mechanism includes a pusher connected with a scraping driving mechanism and capable of moving along the workbench, the pusher is provided with a feeding channel capable of being communicated with the compacting space, and the feeding channel is capable of being communicated with a barrel disposed on the rack. The dry-pressing molding device of the present invention has a high degree of automation, can scrape the powder, and has a good processing effect.

Powder dry-pressing molding device and method

A production line of a CA abrasive, including: a belt mold, the belt mold being provided with a cavity; a transmission device, configured to drive the belt mold to run; a slurry coating mechanism, configured to coat a slurry on a surface and into the cavity of the belt mold; a slurry scraping mechanism, configured to scrap the slurry coated on the surface of the belt mold into the cavity; a drying mechanism, configured to dry the belt mold so that the slurry is dried and precipitated into abrasive grains; a separation mechanism, arranged below the drying mechanism and configured to shake down the abrasive grains in the cavity of the belt mold by vibrating; a sweeping mechanism, configured to sweep slurry fragments of the belt mold after separation; and a release agent coating mechanism, configured to spray a release agent to the swept belt mold.

Production line of CA abrasive

An alumina ceramic integrated hot press molding machine and working method thereof, including a pressing and hot pressing device fixed accordingly on a rack, a stirring device inside the hot pressing device, and a hot pressing mold above the hot pressing device; the pressing device enables one path of high-pressure air to act on the mold, and enables the other path to enter the hot pressing device, so the slurry flows into a cavity of the mold; the stirring device stirs the slurry inside the device, so alumina blanks are more evenly distributed therein; and temperature detection components for detecting the temperature of internal oil and the slurry at a slurry outlet are inside the hot pressing device, and the power of an electric heating device is adjusted and controlled in real time according to the temperature detected by the components, to achieve the purpose of accurate temperature control.

Alumina ceramic integrated hot press molding machine and working method thereof

The invention discloses a method for determining vertical well stratified fracturing crack length based on interlayer equilibrium development. According to the method, interlayer equilibrium development can be achieved by determining the crack length of fracturing of each layer in the condition that an oil well meets the productivity requirements. The method comprises the following steps: 1) a threshold pressure gradient of each layer is determined; 2) a relationship chart of the crack half-length xand the equivalent well diameter ris established; 3) daily oil production rate per unit thickness Qmeeting the production requirements is calculated; 4) the equivalent well diameter rof each layer is calculated according to the daily oil production rate Q; and 5) the crack half-length xof fracturing of each layer is calculated according to the equivalent well diameter rof each layer.

Method for determining vertical well stratified fracturing crack lengths based on interlayer equilibrium displacement

Trailer tire

A slurry scraping mechanism and an applying and scraping device used in an SG abrasive production process includes a scraping master support; a scraper, wherein the scraper is connected with the scraping master support through a suspension component such that the scraper is suspended, and a damping spring is arranged in the suspension component; and a torsion spring adjusting component, wherein the torsion spring adjusting component includes a plurality of torsion springs supported by a torsion spring support shaft, the torsion spring support shaft is fixed to the scraping master support, the torsion spring support shaft is movable up and down relative to the scraping master support, the torsion springs are clamped in a V-shaped plate, an end side of the V-shaped plate is connected with the scraping master support, and a side surface of the V-shaped plate is connected with the scraper.

Slurry scraping mechanism and applying and scraping device used in SG abrasive production process

The present application relate to a follow-up mechanism and a brake caliper unit for gauge-changeable bogie, the follow-up mechanism includes a follow-up connector, unlocking members that are located on two sides of the follow-up connector and movably connected to the follow-up connector, a transverse displacement recognition device movably connected to the unlocking members, a toothed locking and positioning device mounted on the follow-up connector, and at least two mutually parallel fixation members; the follow-up connector is in sliding fit with the fixation members, and sliders are fixedly connected at ends of the unlocking members; the toothed locking and positioning device is movably connected to the transverse displacement recognition device and fixation members, respectively; the brake caliper unit comprises a mounting bracket, the follow-up mechanism, and a brake actuator mounted on the mounting bracket, the follow-up mechanism is installed in cooperation with the brake actuator, and the fixation members are fixedly mounted on the mounting bracket. The present application can automatically recognize the orbit change of a train, the follow-up mechanism moves with a wheel by means of its stored elastic force and the unlocking members, and can self-locked at the target gauge position, thus realizing the change in position.

Follow-up mechanism and brake caliper unit for gauge-changeable bogie

Embodiments of the present disclosure disclose a method for adjusting color temperature and a device. The method comprises: acquiring a present light intensity parameter value of each of N primary colors of light emitted by a light source of a display device, determining a set light intensity parameter value of each of the N primary colors according to the present light intensity parameter value of each of the N primary colors and a pre-saved light intensity parameter value of each of the N primary colors, and respectively adjusting the light intensity of each of the N primary colors according to the set light intensity parameter value of the N primary colors.

Method for adjusting color temperature and device

The present disclosure provides a projection image correcting method and a projection apparatus. The method includes: receiving real-time brightness values of M sub-images in a current to-be-displayed image, the real-time brightness values being acquired by a plurality of sensors arranged on a reflector which is located opposite to a projection lens, and obtaining a brightness adjusting value of a j-th sub-image in the current to-be-displayed image according to the real-time brightness values of the M sub-images. Adjustment is made, in combination with brightness adjusting values obtained from the current image to be displayed, to brightness values of each sub-image in an image to be displayed after the current to-be-displayed image, thereby making brightness of displayed images uniform, and improving the projection image quality.

Projection image correcting method and projection apparatus

Growing community of inventors

Qingdao, China

Zhen Wang