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公开(公告)号：US11498769B2
公开(公告)日：2022-11-15
申请号：US17761977
申请日：2019-11-19
Inventor： Juan Huang , Lairong Yin , Tao Ling , Le Xiao , Jinxing Wang , Yuyang Peng , Peng Xu , Minhui Chen
Abstract: The invention employs a folding arm conveyor that rotates horizontally. The folding arm conveyor is mainly composed of an undercarriage mounted on the ground of a stockyard, a tower body mounted on the undercarriage, a balance arm, a conveying arm, a tower top, and other main components, wherein the balance arm, the conveying arm, and the tower top are mounted on the tower body. The conveying arm is provided with two portal frames (I) and (II) and an unloading trolley. The tower body is provided with a gyration apparatus and a hopper. The balance arm is provided with a balance trolley. The folding arm conveyor can rotate horizontally, and the conveying arm can be folded and retraced by controlling the wind rope by the windlass, so that the folding arm conveyor can be prevented from colliding with other devices or buildings during the rotation.
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52.发明授权公开(公告)号：US11486101B1
公开(公告)日：2022-11-01
申请号：US17867426
申请日：2022-07-18
Inventor： Hanyun Liu , Yan Han , Peng Hu , Chunsheng Cai , Na Mao , Ying Luo , Lidong Wang , Lian Shen , Baixiang Chen
IPC: E01D19/00 , F16F15/027
Abstract: Disclosed is a control method of an airbag-type intelligent control device for vortex-induced vibration of bridges. The airbag-type intelligent control device for vortex-induced vibration (VIV) of bridges includes a control system, which comprises a monitoring device and a control workstation; the monitoring device is used to detect the wind speed and direction near the bridge and the vibration state of the bridge; the control workstation is connected to the monitoring device. The VIV order of bridges is determined based on the detected wind speed, wind direction, and the vibration state of the bridge. The airbag system is mounted on both sides of the bridge and connected to the control workstation; according to the obtained VIV order, the sectional shape parameters of the airbag system are determined, and the airbag system is regulated to have the appropriate sectional shape.
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公开(公告)号：US20220341873A1
公开(公告)日：2022-10-27
申请号：US17413629
申请日：2019-08-16
Inventor： Bo Liang , Zhengchun Liu , Jianlong Zheng
Abstract: Disclosed is a design reference value quantification method for a modifier dosage of modified asphalt. A curve of unsaturation degree of the modified asphalt as a function of the modifier dosage is plotted, in which the unsaturation degree of a series of modified asphalts is determined by potentiometric titration; further, an inflection point of the unsaturation degree of the modified asphalt as a function of the modifier dosage in the asphalt is obtained by data fitting and analysis, and a reference value of the dosage of the modifier added in the process design of the modified asphalt is established.
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公开(公告)号：US20220065808A1
公开(公告)日：2022-03-03
申请号：US17271164
申请日：2020-08-24
Inventor： Zhong CAO , Junyi HE , Qin ZHU , Chu LIU , Saifei FENG , Huiying HU , Donghong YU
IPC: G01N27/327 , G01N27/48 , C01B32/174
Abstract: A method for a selective detection of L-tryptophan (L-Trp) using formaldehyde as a medium is disclosed. The method includes preparation of a copper sulfide nanosheets-chitosan/acidified functionalized multi-wall carbon nanotubes (CuS NS-CS/F-MWCNTs) composite material, preparation of a composite film-modified electrode CuS NS-CS/F-MWCNTs/GCE, and a detection of the L-Trp. Since oxidation peaks of L-Trp and L-tyrosine (L-Tyr) overlap and are difficult to separate, the present invention provides a method for a highly selective detection of L-Trp through the Pictet-Spengler reaction of formaldehyde (HCHO) with L-Trp, in which the oxidation peak potential of L-Trp is shifted to 0.82 V and the oxidation peak potential of L-Tyr is 0.63 V, thereby effectively avoiding the interference of L-Tyr. The CuS NS-CS/F-MWCNTs/GCE is applied to detect L-Trp in the formaldehyde medium without any interference from L-Tyr or other amino acids with 50-fold concentrations.
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公开(公告)号：US20210334431A1
公开(公告)日：2021-10-28
申请号：US16492949
申请日：2019-04-24
Inventor： Lei Wang , Lizhao Dai , Jianren Zhang , Xuhui Zhang , Yafei Ma
Abstract: The present invention provides a method for predicting prestress loss after concrete cracking along strand. Corrosion-induced cracking is modeled by the thick-wall cylinder theory, the expansive pressure is evaluated with the residual tensile stress by cracked concrete and confining stress by un-cracked concrete during concrete cracking process. Considering the effect of strand corrosion, the bond strength of corroded strand is evaluated from the contributions of adhesion stress, confinement stress and expansive pressure. A method for prestress loss in corroded pre-tensioned concrete member is proposed with the strain compatibility and force equilibrium equations, incorporating the coupling effects of concrete cracking and bond degradation. The present invention proposes a method for predicting the prestress loss after concrete cracking along strand, which can incorporate the coupling effects of concrete cracking and bond degradation. It has a great significance to evaluate the prestress loss in existing pre-tensioned concrete beams.
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Patent Agency Ranking
公开(公告)号：US20210268626A1
公开(公告)日：2021-09-02
申请号：US17321394
申请日：2021-05-14
Inventor： Cong MAO , Lairong YIN , Yujie ZHONG , Yongle HU , Yuanqiang LUO , Weidong TANG , Peihao CAI , Mingjun ZHANG , Yifeng JIANG , Aiming TANG
IPC: B24D5/02
Abstract: An orderly-micro-grooved PCD grinding wheel includes a wheel hub, a polycrystalline diamond (PCD) film, a number of micro-grinding units and a number of microgrooves. The PCD film is deposited on an outer circumferential surface of the wheel hub. The PCD film is processed by a water-jet guided laser device to form the microgrooves with high depth-width ratio and micro-grinding units with positive rake angles on the entire outer circumferential surface of the PCD film. An axial length of each micro-grinding unit and an axial length of each microgroove are equal to a thickness of the grinding wheel, respectively. The microgrooves are spaced apart by the micro-grinding units.
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公开(公告)号：US11079353B2
公开(公告)日：2021-08-03
申请号：US16955797
申请日：2019-08-24
Inventor： Zhong Cao , Yuyu Peng , Chen Liu , Ling Tang , Qin Zhu , Min Jin , Jinglin He , Zhongliang Xiao
IPC: G01N27/414
Abstract: A method and a sensor for detecting L-cysteine based on a 3,3′-dithiobis (1-propanesulfonate)-mercury composite membrane are provided. The method includes: implanting a p-well and an N-type substrate on field effect transistor substrate, constructing a source electrode and a drain electrode at the p-well, constructing a silicon dioxide layer on the substrate, plating an aluminum-copper alloy layer, a chromium-palladium alloy layer, and a gold film layer on a polysilicon gate substrate, constructing a silicon nitride layer on the substrate and the silicon dioxide layer; extending a gate part; preparing an ethanol solution of disodium 3,3′-dithiobis (1-propanesulfonate), cleaning and soaking gate gold electrode in the solution, followed by soaking in an ethanol solution of mercuric nitrate, and then washing the gate gold electrode; connecting electrode interfaces, inserting the electrode into PBS, and connecting power interfaces to a stabilized voltage supply, connecting a signal output interface to a multimeter.
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公开(公告)号：US20210129092A1
公开(公告)日：2021-05-06
申请号：US17088058
申请日：2020-11-03
Inventor： Cong Mao , Zhikang Zhang , Yongle Hu , Jian Zhang , Mingjun Zhang , Kun Tang , Weidong Tang , Linfeng Xiao
Abstract: An anti-agglomeration device for a nanofluid includes a support module, a motion module, a photoacoustic conversion module and a control module. The support module includes a frame and screws and is configured to support the photoacoustic conversion module and the motion module. The photoacoustic conversion module includes a nanosecond laser, a first clamp, a lens, a silica optical fiber, a second clamp, gold nanoparticles and a container and is configured to realize photoacoustic conversion to generate ultrasonic waves. The motion module includes a servo motor, a dovetailed rail, a guide screw, a fixed plate, a slider and a deep groove ball bearing. The motion module is configured to support the photoacoustic conversion module and realize the combined motions of the photoacoustic conversion module. The control module includes a support plate and a CCD camera and is configured to control the motion module in real time.
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公开(公告)号：US20210123093A1
公开(公告)日：2021-04-29
申请号：US17258932
申请日：2019-08-24
Inventor： Zhong CAO , Jia YANG , Chen LIU , Zhongliang XIAO , Dan LI , Ling ZHANG , Yuyang ZHANG , Jiaxin LI
IPC: C12Q1/6809 , G01N27/26
Abstract: A method and a sensor for detecting L-cystine are disclosed. The method is implemented by assembling a sodium 3,3′-dithiodipropane sulfonate (SPS) membrane on a surface of Au membrane layer of an Au electrode and using an extended gate of field effect transistor (FET) and in-situ signal amplification of the FET to detect L-cystine sensitively. The polyanion of the SPS membrane adsorbs and binds a positively charged target L-cystine through electrostatic interaction, thus forming an electric double layer structure to generate a membrane potential identifying a monovalent organic ammonium ion. The sensor includes the FET, wherein a gate-extended gold electrode is arranged on the FET, and the SPS membrane is assembled on the surface of the Au membrane layer of the gate-extended gold electrode. The sensor has an excellent Nernst response to L-cystine.
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公开(公告)号：US20210122573A1
公开(公告)日：2021-04-29
申请号：US17139563
申请日：2020-12-31
Inventor： Lairong YIin , Yang Liu , Juan Huang , Shuo Cai , Peng Xu , Lin Hu , Le Xiao , Long Huang
IPC: B65G15/26
Abstract: Disclosed a large-span bulk material conveying system, including a folding arm conveyor and a dike-striding elevation-type feeding conveying device. The folding arm conveyor is mainly composed of an undercarriage mounted on the ground of a stockyard, a tower body mounted on the undercarriage and provided with a gyration apparatus and a hopper, a balance arm provided with a balance trolley, a conveying arm provided with a portal frame I, a portal frame II and an unloading trolley, a tower top and other main components, wherein the balance arm, the conveying arm and the tower top are mounted on the tower body. The folding arm conveyor can rotate horizontally, and the conveying arm can be folded and retracted by controlling the wire rope by the windlass, so that the folding arm conveyor can be prevented from colliding with other devices or buildings during the rotation.
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