公开(公告)号：US11645354B2

公开(公告)日：2023-05-09

申请号：US17750027

申请日：2022-05-20

Applicant: XI'AN UNIVERSITY OF TECHNOLOGY

Inventor： Quan Quan ,  Shaoze Gao ,  Simin Yang ,  Rong Fan

IPC: G06F17/00 ,  G06F30/20 ,  G06F30/10

CPC classification number: G06F17/00 ,  G06F30/10 ,  G06F30/20

Abstract: The present invention discloses a determination method for a preferred habitat of fish and a terminal device, wherein the method comprises: acquiring parameter information of a water environment in which target fish is located, and establishing a 3D water environment model by utilizing the parameter information of the water environment; determining an ecological function of the target fish and constructing a bio-simulation model on the 3D water environment model by combining the ecological function; acquiring a movement locus of the target fish in the bio-simulation model and determining potential habitats of the target fish according to the movement locus; and determining the preferred habitat of the target fish from the potential habitats by utilizing a preference learning model based on a density accumulation method.

公开(公告)号：US11634333B2

公开(公告)日：2023-04-25

申请号：US16883657

申请日：2020-05-26

Applicant: Xi'an University of Technology

Inventor： Shufeng Li ,  Deng Pan ,  Xin Zhang ,  Lei Liu ,  Dongxu Hui

IPC: C01B35/04 ,  B33Y70/00

Abstract: This invention discloses a boron-containing titanium-based composite powder for 3D printing, consisting of 0.5%-2% by weight of titanium diboride and 98%-99.5% by weight of titanium sponge. The invention further discloses a method of preparing such composite powder, where the element boron is introduced to the titanium powder through rapid solidification, which significantly improves the solid solubility of boron in Ti, enabling the introduction of part of the boron into the titanium matrix to form supersaturated solid solutions. The reinforcement phase TiB in the boron-containing titanium-based composite powder prepared herein can be precisely controlled in grain size ranging from the nanometer scale to the micrometer scale through temperature or energy density, thereby preparing the titanium-based composite materials with different sizes of reinforcement phases to meet different mechanical requirements.

公开(公告)号：US20220317228A1

公开(公告)日：2022-10-06

申请号：US17842727

申请日：2022-06-16

Applicant: XI'AN UNIVERSITY OF TECHNOLOGY

Inventor： Xiaoli XI ,  Zhenzhu ZHAO ,  Jiangfan LIU ,  Jinsheng ZHANG ,  Yanning YUAN ,  Jiuxiang GAO ,  Chaofan TUO

IPC: G01S1/24 ,  G01S1/22

Abstract: Provided herein is a method for separating Loran sky and ground waves based on a Levenberg-Marquart algorithm, including: (1) collecting a plurality of Loran sky-ground wave signals followed by normalization to obtain a normalized signal; (2) preprocessing the normalized signal by inverse Fourier transform method to obtain an initialization parameter; (3) establishing a mathematical model for the Loran sky-ground wave signals in time domain; and (4) solving parameters of the mathematical model using the Levenberg-Marquart algorithm to separate the Loran sky and ground waves.

公开(公告)号：US11336492B2

公开(公告)日：2022-05-17

申请号：US16476879

申请日：2019-04-28

Applicant: Xi'an University of Technology

Inventor： Haipeng Ren ,  Junliang Yao ,  Chao Bai

IPC: H04L27/00

Abstract: a chaotic shape-forming and corresponding matched filter-based wireless communication method is provided, and the method includes that: 1) data to be transmitted is prepared; 2) chaotic shape-forming filter is performed on a digital symbol to be transmitted to generate a baseband signal; 3) the baseband signal is transmitted and transferred by use of a radio frequency component and transmitting antenna of a conventional wireless communication system; 4) a wireless signal is received by use of a conventional receiving antenna, and down-carrier process is performed on the received signal to obtain a received baseband signal; 5) matched filter is performed on the received baseband signal; 6) wireless channel estimation and multipath interference cancellation judgment threshold calculation are performed; and 7) sampling judgment is performed on an output signal of matched filter, symbol sampling is performed on the output signal of the matched filter in Step 5), and the sampled signal is judged by use of a judgment threshold calculated in Step 6) to obtain a decoded output signal.

公开(公告)号：US20200070418A1

公开(公告)日：2020-03-05

申请号：US16669602

申请日：2019-10-31

Applicant: Xi'an University of Technology

Inventor： Gengxiang WANG ,  Pengfei LI ,  Kaihe WEI

IPC: B29C64/245 ,  B29C64/209 ,  B29C64/227

Abstract: A variable-size fully-automatic 3D printing system based on a cylindrical coordinate system includes a base provided with a retractable work platform; the base is provided with a vertical support side plate on a side thereof; an upper end of the support side plate is connected to a top plate, and the top plate is located directly above the base; a lower side of the top plate is connected to a sleeve via a column seat; a lower end of the sleeve is provided with a protrusion; a lower end of the protrusion is connected with a cross beam; a lower side of the cross beam is provided with a ball screw a, one end of the ball screw a is connected to a power end of a first servo motor disposed at an outer end of the cross beam.

公开(公告)号：US20180254727A1

公开(公告)日：2018-09-06

申请号：US15756810

申请日：2016-02-04

Applicant: XI'AN UNIVERSITY OF TECHNOLOGY

Inventor： Hai-Peng REN

IPC: H02P21/00

CPC classification number: H02P21/001 ,  H02P21/00 ,  H02P21/50 ,  H02P27/08

Abstract: A method of realizing single direction chaotic rotation speed of permanent magnet synchronous motor is provided powered by a three-phase full-bridge inverter.

公开(公告)号：US09543462B2

公开(公告)日：2017-01-10

申请号：US15074512

申请日：2016-03-18

Applicant: Xi'an University of Technology ,  THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS

Inventor： Xinmei Wang ,  Sudip K. Mazumder ,  Wei Shi

IPC: H01L31/0352 ,  H01L31/119 ,  H01L27/144 ,  H01L23/482

CPC classification number: H01L31/119 ,  H01L23/4825 ,  H01L27/1443 ,  H01L31/035281 ,  Y02E10/50

Abstract: This present invention provides a novel photoconductive semiconductor switch (PCSS) comprising: a semi-insulating substrate, an anode formed on the upper surface of said semi-insulating substrate, a first n-type doped layer formed on the lower surface of said semi-insulating substrate, a p-type doped layer formed on said first n-type doped layer, a second n-type doped layer formed on said p-type doped layer, a cathode formed on said second n-type doped layer, several recesses facing towards said first n-type doped layer and vertically extending into a part of said first n-type doped layer, an insulating layer formed on said second n-type doped layer and on the walls and the bottoms of said recesses, a gate electrode consisting of two parts, one part of the which formed on said insulating layer on the walls and the bottoms of recesses, and the other part of the which formed on a part of the insulating layer on the second n-type doped layer for electrically connecting the part of the gate electrode on the recesses, wherein the cathode and the gate electrode are electrically isolated.

Abstract translation: 本发明提供了一种新型的光导半导体开关（PCSS），其包括：半绝缘基板，形成在所述半绝缘基板的上表面上的阳极，形成在所述半绝缘基板的下表面上的第一n型掺杂层， 绝缘衬底，形成在所述第一n型掺杂层上的p型掺杂层，形成在所述p型掺杂层上的第二n型掺杂层，形成在所述第二n型掺杂层上的阴极， 朝向所述第一n型掺杂层并且垂直延伸到所述第一n型掺杂层的一部分中的绝缘层，形成在所述第二n型掺杂层上以及所述凹部的壁和底部上的绝缘层， 的两部分，其一部分形成在所述绝缘层上的壁和凹部的底部上，而另一部分形成在第二n型掺杂层上的绝缘层的一部分上，用于电连接 一部分gat e电极，其中阴极和栅电极是电隔离的。

公开(公告)号：US20160276518A1

公开(公告)日：2016-09-22

申请号：US15074512

申请日：2016-03-18

Applicant: Xi'an University of Technology ,  THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS

Inventor： Xinmei WANG ,  Sudip K. MAZUMDER ,  Wei SHI

IPC: H01L31/119

CPC classification number: H01L31/119 ,  H01L23/4825 ,  H01L27/1443 ,  H01L31/035281 ,  Y02E10/50

Abstract: This present invention provides a novel photoconductive semiconductor switch (PCSS) comprising: a semi-insulating substrate, an anode formed on the upper surface of said semi-insulating substrate, a first n-type doped layer formed on the lower surface of said semi-insulating substrate, a p-type doped layer formed on said first n-type doped layer, a second n-type doped layer formed on said p-type doped layer, a cathode formed on said second n-type doped layer, several recesses facing towards said first n-type doped layer and vertically extending into a part of said first n-type doped layer, an insulating layer formed on said second n-type doped layer and on the walls and the bottoms of said recesses, a gate electrode consisting of two parts, one part of the which formed on said insulating layer on the walls and the bottoms of recesses, and the other part of the which formed on a part of the insulating layer on the second n-type doped layer for electrically connecting the part of the gate electrode on the recesses, wherein the cathode and the gate electrode are electrically isolated.

Abstract translation: 本发明提供了一种新型的光导半导体开关（PCSS），其包括：半绝缘基板，形成在所述半绝缘基板的上表面上的阳极，形成在所述半绝缘基板的下表面上的第一n型掺杂层， 绝缘衬底，形成在所述第一n型掺杂层上的p型掺杂层，形成在所述p型掺杂层上的第二n型掺杂层，形成在所述第二n型掺杂层上的阴极， 朝向所述第一n型掺杂层并且垂直延伸到所述第一n型掺杂层的一部分中的绝缘层，形成在所述第二n型掺杂层上以及所述凹部的壁和底部上的绝缘层， 的两部分，其一部分形成在所述绝缘层上的壁和凹部的底部上，而另一部分形成在第二n型掺杂层上的绝缘层的一部分上，用于电连接 一部分gat e电极，其中阴极和栅电极是电隔离的。