-
51.发明申请公开(公告)号：US20210325294A1
公开(公告)日：2021-10-21
申请号：US16850381
申请日：2020-04-16
发明人： Jianlin LUO , Zuquan JIN , Xueqing ZHU , Jigang ZHANG
摘要： A carbon nanotube (CNT) assembled thin film modified steel wire array electrode, a preparation method and application thereof. The array electrode includes: a surface of a steel wire is negatively modified, and the surface of the steel wire is assembled with a plurality of layers of CNT thin films; one end of the steel wire is welded to a conductor, and a welding position between the steel wire and the conductor is wrapped with an insulating heat shrinkable tube; and the insulating template and the steel wire are encapsulated and cured by using an epoxy resin. The preparation method of the array electrode of the invention mainly includes the following steps: first, performing negative modification on a steel wire, then, assembling CNT thin films on the steel wire, and preparing the modified array steel wire into the CNT assembled thin film modified steel wire array electrode.
-
公开(公告)号：US11099150B1
公开(公告)日：2021-08-24
申请号：US17051781
申请日：2019-08-30
申请人： QINGDAO UNIVERSITY
发明人： Rijun Gui , Yujiao Sun , Hui Jin , Xiaowen Jiang
IPC分类号： G01N27/327 , G01N27/30 , G01N27/48 , C12Q1/6825 , C12Q1/6886 , B05D1/00
摘要： A method for preparing a ratiometric electrochemical miR3123 aptasensor based on a copper-based metal-organic framework (Cu-MOF) composite doped with black phosphorus nanosheets (BPNSs) and thionine (TH) is provided. TH/Cu-MOF is prepared by reacting TH with Cu-MOF precursor, and BPNSs/TH/Cu-MOF is prepared by drop coating the BPNSs and drop coated onto an electrode. A ferrocene (Fc)-labeled single-stranded DNA aptamer is adsorbed on the BPNSs to prepare aptamer-BPNSs/TH/Cu-MOF. Target molecule miR3123 is bonded with the single-stranded DNA aptamer Fc-DNA, Fc-DNA is forced to escape from the BPNSs. Electrochemical signals of Fc are, therefore, weakened while TH signals are slightly affected. The ratiometric electrochemical miR3123 aptasensor is constructed by fitting a linear relationship between peak current intensity ratios IFc/ITH and concentrations of the miR3123.
-
53.发明授权公开(公告)号：US11047818B2
公开(公告)日：2021-06-29
申请号：US16672540
申请日：2019-11-04
发明人： Changhe Li , Min Yang , Runze Li , Yanbin Zhang , Xianpeng Zhang , Heju Ji , Yali Hou , Naiqing Zhang , Qidong Wu
摘要： The present invention discloses an integrated online measurement system for thermophysical property parameters of nanofluid cutting fluid, consisting of a gas path system, a fluid path system, a nanofluid thermal conductivity measurement device, a measurement device for a convective heat transfer coefficient and a nanofluid/workpiece heat partition ratio of the nanofluid cutting fluid, and a grinding force and grinding temperature measurement device or a milling force and milling temperature measurement device; the nanofluid thermal conductivity measurement device is located in the fluid path system; the gas path system provides pressure for the nanofluid in the fluid path system, two nozzles lead out from the fluid path system, and the nanofluid gas spray ejected by the nozzle I is sprayed onto the surface of a workpiece I to form the measurement device for the nanofluid convective heat transfer coefficient and the nanofluid/workpiece heat partition ratio; and the nanofluid gas spray ejected by the nozzle II is sprayed onto the surface of a workpiece II to form the grinding force and grinding temperature measurement device.
-
54.发明申请公开(公告)号：US20210164811A1
公开(公告)日：2021-06-03
申请号：US17019950
申请日：2020-09-14
发明人： Sen LIANG , Yunpeng YAN , Guanghe WANG , Gongxian YANG
摘要： Two photoelectric circuit sets each have a light source, two light switches, optical fibers, photoelectric sensor and computer. The light source emits visible light to the first switch, which is continuously deflected and reflected by a torsional micro-mirror. The light respectively irradiates each of the optical fibers in a composite material optical fiber prepreg layer. If the material is normal, the optical fiber is not damaged, the visible light passes through the optical fiber and irradiates the second switch, and is continuously deflected and reflected by a second torsional micro-mirror, the light irradiates the photoelectric sensor. The sensor outputs an electric signal to the computer. If the material is damaged, the optical fiber here is damaged, another corresponding optical fiber path at an intersection point is also damaged without electric signal output. The computer gives breaking position coordinates at the intersection point of two paths of optical fiber arrays.
-
公开(公告)号：US20210126553A1
公开(公告)日：2021-04-29
申请号：US16622282
申请日：2018-12-06
申请人： Qingdao University
发明人： Daolian CHEN
IPC分类号： H02M7/5387 , H02J7/00 , H02J7/35
摘要： A single-stage three-phase high-gain boost-type three-port integrated inverter includes a center-tapped energy storage inductor, a three-phase inverter bridge and a three-phase filter, which are successively connected in cascade. A drain terminal and a source terminal of the energy storage switch are respectively connected to the center tap of the energy storage inductor and the negative electrode of an input DC power source. A battery charge/discharge switch unit is connected between a positive electrode of the input DC power source, a positive electrode of a battery and two ends of the center-tapped energy storage inductor. The inverter has three ports, an input port, an output port, and an energy storage port. The inverter has three modes which are the input power supply supplies power to the output load and the battery, the input power supply and battery supply power to the output load, and the battery supplies power to the load.
-
公开(公告)号：US20210102900A1
公开(公告)日：2021-04-08
申请号：US16607911
申请日：2018-11-26
申请人： QINGDAO UNIVERSITY
发明人： Zonghua WANG , Huixin ZHANG , Yang LIU
IPC分类号： G01N21/76 , G01N33/543 , G01N33/551 , C09K11/07 , B01J31/22 , G01N27/30 , G01N27/327
摘要： An electrogenerated chemiluminescence (ECL) probe is based on trititanium dicarbide two-dimensional (2D) metal carbide catalyzed luminol and a preparation method. The biosensor includes the probe and the electrode of the biosensor, wherein the probe includes the Ti3C2 MXenes nanosheets, a linker molecule and a bio-recognition molecule 1; the Ti3C2 MXenes nanosheets are linked with the linker molecule by electrostatic adsorption; the linker molecule is linked with the bio-recognition molecule 1 by an amide group, contains a primary or secondary amine group, and presents positive potential in water; the bio-recognition molecule 1 is a single-stranded DNA sequence 1 having a carboxyl group at the 5′ end, and a CD63 protein on exosomes is recognized by the single-stranded DNA sequence 1. It was found for the first time that Ti3C2 MXenes can improve the ECL signal of luminol, the Ti3C2 MXenes could be applicable to the ECL probe.
-
公开(公告)号：US10962076B2
公开(公告)日：2021-03-30
申请号：US16985179
申请日：2020-08-04
发明人： Chunwei Zhang , Hao Wang
IPC分类号： F16F7/10
摘要： An active rotary inertia driver system includes an output support, a drive assembly and a rotary inertia plate. The output support includes a partition plate and a housing. The partition plate is fixed on an inner wall of the housing, and the housing is connected with a controlled structure. One end of the drive assembly is fixed on the housing and connected to one end of an output shaft. The other end of the drive assembly is fixed on the partition plate. The other end of the output shaft extends out of the housing and connected to the rotary inertia plate. The rotary inertia plate is a disc or a ring with a preset mass.
-
公开(公告)号：US10954663B2
公开(公告)日：2021-03-23
申请号：US16977108
申请日：2019-09-30
发明人： Ben Mou , Wanqiu Zhou , Peng Feng , Bingcheng Yan
摘要： A cylindrical sleeve-type steel-wood composite joint includes fiberglass reinforced panel (FRP) cylindrical wood columns, X-shaped wood beams, a key connecting component, arc connecting pieces and splicing outer ring plates. The key connecting component consists of upper and lower cylindrical steel sleeve plates, a connecting sleeve, a cylindrical solid wood and filling wood blocks. The FRP cylindrical wood columns are connected to the key connecting component and are inserted into the key connecting component through the cylindrical steel sleeve plates and penetrative steel bars. The X-shaped wood beams are connected to the key connecting component through the arc connecting pieces, and the splicing outer ring plates are fixed with bolts to realize combination and connection. By adoption of the design of the connecting sleeve, the joint has a high bearing capacity, vertical force transfer is guaranteed, operation is easy, and assembly is fast.
-
公开(公告)号：US10954643B2
公开(公告)日：2021-03-23
申请号：US16937509
申请日：2020-07-23
发明人： Chunwei Zhang , Hao Wang
摘要： An energy-supply rotary inertia driver system for an offshore platform includes an annular fixed plate, an active control module, a wind power generation module and a solar power generation module. The system can monitor a motion state of the offshore platform in real time, and can generate a force through the active control module if necessary to apply a force torque of the offshore platform to further achieve the vibration suppression. Moreover, when the offshore platform is under normal operation, the system can act as an energy supply device via wind and solar power generation to feed electric energy to the active control module and other electrical equipment on the offshore platform when needed.
-
公开(公告)号：US10907343B1
公开(公告)日：2021-02-02
申请号：US16977089
申请日：2019-09-30
发明人： Ben Mou , Fei Zhao , Peng Feng , Qiyun Qiao , Bingcheng Yan
摘要： A prefabricated steel-wood composite joint includes square pipe columns, steel-wood composite beams, and a beam-column connecting assembly for connecting the square pipe columns and the steel-wood composite beams. Each square pipe column includes connecting corner columns and connecting side plates. Each steel-wood composite beam includes a top flange, a bottom flange and wood webs for connecting the top flange and the bottom flange. The beam-column connecting assembly is a central column connecting assembly or a corner column connecting assembly. By a special structural design, the composite joint realizes effective beam-column connection without a welded connection and a bolted connection and has tenacity and good seismic performance. The components of the composite joint can be prefabricated in a factory, are high in precision and are assembled on site, so that construction is easy and convenient, procedures are simplified, and the construction period is effectively shortened.
-
-
-
-
-
-
-
-
-
搜索结果
380 条记录 (耗时 0.024 秒)
