Science Discovery

Volume 7, Issue 6, December 2019

  • Deep Learning Based Multi-user Interference Cancellation Technology

    Changyun Zhang

    Issue: Volume 7, Issue 6, December 2019
    Pages: 379-384
    Received: Nov. 04, 2019
    Accepted:
    Published: Dec. 09, 2019
    Downloads:
    Views:
    Abstract: In the paper, I proposed a neural network-based solution to multiple access interference under the Multi-antenna Input and Multi-antenna Output (MIMO) communication system. In a model of the uplink and downlink of the multiuser MIMO system. In cases of multiple access interference, each transmitter were designed with neural networks, after the tran... Show More
  • Research on Residential Quarters Based on the Concept of Sponge City

    Hu Jiayu, Li Manhua, Shu Yang

    Issue: Volume 7, Issue 6, December 2019
    Pages: 385-389
    Received: Nov. 02, 2019
    Accepted:
    Published: Dec. 09, 2019
    Downloads:
    Views:
    Abstract: In order to solve the increasingly serious water environment problem in China, the concept of Sponge City is gradually being applied to urban construction. As one of the carriers of the sponge city, the Sponge Community area has an important impact on the urban stormwater management work and plays a key role in urban construction. Compared with the... Show More
  • Fixed Boundary Vibration Measurement Method for Surface Tension of Membrane Structure

    Shen Hao, Xu Xiaochen, Chen Tao, Xu Zhihong

    Issue: Volume 7, Issue 6, December 2019
    Pages: 390-397
    Received: Nov. 02, 2019
    Accepted:
    Published: Dec. 09, 2019
    Downloads:
    Views:
    Abstract: At present, some methods for measuring the surface tension of membrane structure are applied to engineering practice. But there are some defects happened in the engineering practice. This paper proves the partial boundary of the fixed membrane surface. The natural vibration frequency of the membrane surface is only related to the membrane surface t... Show More
  • Analytic Hierarchy Process on the Selection of Industry Steel Structure System

    Wang Hao, Shen Yuekui

    Issue: Volume 7, Issue 6, December 2019
    Pages: 398-403
    Received: Nov. 03, 2019
    Accepted:
    Published: Dec. 09, 2019
    Downloads:
    Views:
    Abstract: This paper discuss the industry steel structure system. However, nowadays reinforced concrete structure which is widely used has the disadvantages of dead load, long construction time and high total cost of capital. It is urgent to find an alternative structure in the project, and the steel structure can solve this problem very well. Steel structur... Show More
  • Wind Load Simulation on Cylindrical Air-supported Structure

    Shen Yuekui, Wang Hao, Xin Jiali

    Issue: Volume 7, Issue 6, December 2019
    Pages: 404-408
    Received: Nov. 03, 2019
    Accepted:
    Published: Dec. 09, 2019
    Downloads:
    Views:
    Abstract: More and more air-supported structures are used. However,the current wind load shape coefficient can not match engineering design. The CFD technology is utilized to simulate the wind load pressure distribution of rigid half cylindrical shape used for air-supported structures frequently. The shape is found by finite element software ANSYS, and then ... Show More
  • Research on Housing Security System of Urban Old Community for Smart City

    Gao Hao, Shi Xingxi, Wang Xianghong

    Issue: Volume 7, Issue 6, December 2019
    Pages: 409-414
    Received: Nov. 04, 2019
    Accepted:
    Published: Dec. 09, 2019
    Downloads:
    Views:
    Abstract: In order to help solve the problem of the lag of information management in the old residential quarters of smart cities, this paper takes 42 old districts in a city as an example to collect housing data. Based on Baidu API, Java language programming, MySQL database and other modern information technology means, research and development meets The ol... Show More
  • End Effect in Uniaxial Compression Test of Marble

    Wu Zhichou, Zhang Ning, Wang Jiabo, Wang Shuo

    Issue: Volume 7, Issue 6, December 2019
    Pages: 415-418
    Received: Nov. 15, 2019
    Accepted:
    Published: Dec. 09, 2019
    Downloads:
    Views:
    Abstract: In order to reveal the influence of friction between loading plate and test piece on test strength, Alloy steel, polytetrafluoroethylene and rubber are used as cushion, Uniaxial compression tests of marble cubes under different end contact conditions were carried out. The test results show that, When the cushion is thick, the greater the cushion s... Show More
  • Research on the Control System of Intelligent Electric Assisted Knee Joint

    Li Feng, Wang Tianrun, Zhang Dedi, Liu Ning Ning

    Issue: Volume 7, Issue 6, December 2019
    Pages: 419-428
    Received: Nov. 03, 2019
    Accepted:
    Published: Dec. 09, 2019
    Downloads:
    Views:
    Abstract: Aiming at the problem that the traditional electric assisted knee joint is high cost, non-intelligent, cannot automatically adjust the assist strength, a new electric assisted knee joint control system was developed in this paper, which is divided into three parts: Android control terminal, prosthetic control module and prosthetic mechanical struct... Show More
  • Research on Automatic Detection Method of Railway Fastener Defects Based on Image Processing

    Qiu Yijin, Lv Zhaomin

    Issue: Volume 7, Issue 6, December 2019
    Pages: 429-435
    Received: Nov. 03, 2019
    Accepted:
    Published: Dec. 12, 2019
    Downloads:
    Views:
    Abstract: With the rapid development of rail transit, the detection requirements for the various components of the track line are getting higher and higher, and relying on manual detection has the disadvantages of high cost and low efficiency. Therefore, it is urgent to study the method of automatic detection of track lines.This paper is based on the develop... Show More
  • Study on Drilling Parameters Optimization of Aluminum Alloy-Steel Hybrid Drill Pipe

    Ni Hongjian, Tang Zhongmin

    Issue: Volume 7, Issue 6, December 2019
    Pages: 436-440
    Received: Nov. 15, 2019
    Accepted:
    Published: Dec. 12, 2019
    Downloads:
    Views:
    Abstract: With the increasing number of wells with complex operating conditions, the requirements for oil exploration equipment and technology are higher than ever before. Aluminum alloy drill pipe gradually receives good graces because of its light weight, high strength to mass ratio and strong corrosion resistance. This paper calculates different drillstri... Show More
  • Experimental Study and Simulation of Film Tension Measurement by Apex Method

    Jing Xuanxiang, Xu Zhihong

    Issue: Volume 7, Issue 6, December 2019
    Pages: 441-445
    Received: Nov. 06, 2019
    Accepted:
    Published: Dec. 26, 2019
    Downloads:
    Views:
    Abstract: In order to ensure the normal use of the tensioned membrane structure, it is necessary to effectively detect the tension applied to the tensioned membrane surface. In this paper, a top-projection membrane surface tension measuring instrument with fixed boundary was designed. During the measure process, the force and the apex displacement were measu... Show More
  • Design and Simulation of Cascade Fuzzy Control System for Boilers

    Guo Kai

    Issue: Volume 7, Issue 6, December 2019
    Pages: 446-452
    Received: Nov. 25, 2019
    Accepted:
    Published: Jan. 04, 2020
    Downloads:
    Views:
    Abstract: The control of boiler drum water level plays an important role in the automation control of boilers, the control effect directly affects the safety production of the boiler. In order to solve problems of non-linearity, instability and time-delay of boiler drum water level control system and difficulty in establishing accurate mathematical model, a ... Show More
  • Research on Institutional Affirmation Factor Based on Structural Equation Model

    Fan Jiangyan, Zhang Hongbing

    Issue: Volume 7, Issue 6, December 2019
    Pages: 453-457
    Received: Nov. 25, 2019
    Accepted:
    Published: Jan. 04, 2020
    Downloads:
    Views:
    Abstract: The affirmation of the country’s existing system by the nationals is the basic element and an important manifestation of national security. As an important force for safeguarding national security and social stability, the military's national defense education is far different from the locality in terms of breadth and depth, and its functional miss... Show More