• 제목/요약/키워드: Socket program

Search Result 43, Processing Time 0.026 seconds

Nonlinear finite element analysis of loading transferred from column to socket base

  • Anil, Ozgur;Uyaroglu, Burak
    • Computers and Concrete
    • /
    • v.11 no.5
    • /
    • pp.475-492
    • /
    • 2013
  • Since the beginning of the 90 s, depending on the growth of the industrial sector in Turkey, factory constructions have been increased. The cost of precast concrete buildings is lower than the steel ones for this reason the precast structural systems are used more. Precast concrete structural elements are mostly as strong as not to have damage in the earthquake but weakness of connections between elements causes unexpected damages of structure during earthquake. When looking at the previous researches, it can be seen that there is a lack of studies about socket type base connections although there were many experimental and analytical studies about the connections of precast structural elements. The aim of this study is to investigate the stress transfer mechanism between column and the socket base wall with finite element method. For the finite element analysis ANSYS software was used. A finite element model was created which is the simulation of experimental research executed by Canha et al. (2009) under vertical and horizontal forces. Results of experimental research and finite element analysis were compared to create a successful simulation of experimental program. After determining the acceptable parameters, models of socket bases were created. Model dimensions were chosen according to square section column sizes 400, 450, 500, 550 and 600 mm which were mostly used in industrial buildings. As a result of this study, stress distribution at center section of the socket base models were observed and it is found that stress distribution affects triangular at the half of socket bottom and top.

Implementation of Web Based Multi-Axis Force Control & Monitoring Systems for an intelligent robot (지능형 로봇을 위한 웹 기반 다축 힘 제어 및 감시시스템 구현)

  • Lee, Hyun-Chul;Nam, Hyun-Do;Kang, Chul-Goo
    • Proceedings of the KIEE Conference
    • /
    • 2004.11c
    • /
    • pp.33-35
    • /
    • 2004
  • In this paper, web based monitoring systems are implemented for multi-axis force control systems of an intelligent robot. Linux operating systems are ported to an embedded system which Include a Xscale processor to implement a web based monitoring system. A device driver is developed to receive data from multi-axis force sensors of intelligent robots. To control this device driver, a socket program for Labview is also developed.

  • PDF

Histologic effects of intentional-socket-assisted orthodontic movement in rabbits

  • Yu, Ji-Yeon;Lee, Won;Park, Jae Hyun;Bayome, Mohamed;Kim, Yong;Kook, Yoon-Ah
    • The korean journal of orthodontics
    • /
    • v.42 no.4
    • /
    • pp.207-217
    • /
    • 2012
  • Objective: This study aimed to evaluate the effect of an intentionally created socket on bone remodeling with orthodontic tooth movement in rabbits. Methods: Eighteen male rabbits weighing 3.8 - 4.25 kg were used. An 8-mm deep and 2-mm wide socket was drilled in the bone 1 mm mesial to the right mandibular first premolar. The left first premolar was extracted to serve as an extraction socket. A traction force of 100 cN was applied to the right first premolar and left second premolar. Sections were obtained at the middle third of the moving tooth for both the drilled and extraction sockets and evaluated with hematoxylin and eosin staining and immunohistochemical analyses. The amount of tooth movement and tartrate-resistant acid phosphatase (TRAP)-positive cell count were compared between the 2 groups using the Mann-Whitney U test. Results: At week 2, the distance of tooth movement was significantly higher in the intentional socket group (p < 0.05) than in the extraction socket group. The number of TRAP-positive cells decreased in week 2 but increased in week 3 (p < 0.05). However, there were no significant differences between the groups. Furthermore, results of transforming growth factor (TGF)-${\beta}$ staining revealed no significant differences. Conclusions: The intentional socket group showed greater distance of tooth movement than did the extraction socket group at week 2. Osteoclast counts and results of immunohistochemical analyses suggested elevated bone remodeling in both the groups. Thus, osteotomy may be an effective modality for enhancing tooth movement in orthodontic treatment.

Internet cafe management program using socket and thread (Socket, Thread를 이용한 PC방 관리 프로그램 설계 및 구현)

  • Yoon, Kyung-Seob;Kim, Hyun-Woo;Kang, Min-Uk
    • Proceedings of the Korean Society of Computer Information Conference
    • /
    • 2012.07a
    • /
    • pp.279-280
    • /
    • 2012
  • PC방은 긴 역사를 가지고 있지는 않지만 꾸준히 많은 사람들이 이용하고 있으며 PC방의 수도 꾸준히 늘어나 포화상태에 이르게 되었다. 다른 업종과 달리 반짝하고 사라지는 업종이 아니기 때문에 관리자는 지속적으로 고객, 상품 등을 관리해야 할 필요가 있고, 고객의 요청이 생겼을 때 빠르고 신속하게 처리해주어야 한다. 본 논문에서는 PC방 관리시스템을 관리자가 운영함에 있어 소켓(Socket)과 스레드(Thread)를 이용하여 실시간으로 고객의 정보를 확인하고 신속하게 처리 할 수 있도록 하며, 매출현황 데이터를 참고하여 미래의 운영 계획을 세움에 있어 도움을 줄 수 있도록 하였다.

  • PDF

A Development of Web-based Remote monitoring and control system using Java (Java를 이용한 웹 기반 원격 감시제어시스템 개발)

  • Park, Jong-Jin
    • Journal of the Korea Computer Industry Society
    • /
    • v.8 no.1
    • /
    • pp.41-48
    • /
    • 2007
  • In this paper, a example of a development of web-based remote monitoring and control system using Java technology on TCP/IP is proposed. We implemented Client/Server socket programs using Java Socket class, and applied those to a greenhouse made from LEGO blocks and made web-based greenhouse remote monitoring and control system. Implemented System transferred states of greenhouse to client programs, and control signals from client program were transferred to Server. Greenhouse model was controlled well by the system.

  • PDF

Development of a Client/Server Socket Program using Remote Measurement of Digital Water Meters (상수도 원격 검침 데이터 송수신 위한 Client/Server 소켓 프로그램 개발)

  • Ayurzana, Odgerel;Park, Yong-Man; Kwon, Jong-Won;Kim, Hie-Sik
    • Proceedings of the KIEE Conference
    • /
    • 2006.04a
    • /
    • pp.153-155
    • /
    • 2006
  • An automatic remote water measurement system was developed. This system sends automatic remote measured and collected water meters data automatically from the transmitter with CDMA modem through SK-Telecom network The water meter data are received through LAH TCP/IP and displayed as test file on IE(Internet Explorer) window. The existing water meters of mechanical type have so many problems to measure data. The person must visit the location of each water meters and write down the data records manually. In this system the RF module has attached each water meter Client/Server programs are developed by network socket programming.

  • PDF

Implementation of Ethernet-Based High-Speed Data Communication for Multi-core DSP (멀티 코어 DSP를 위한 이더넷 기반 고속 데이터 통신 구현)

  • Nguyen, Dung Huy;Choi, Joon-Young
    • IEMEK Journal of Embedded Systems and Applications
    • /
    • v.17 no.3
    • /
    • pp.185-190
    • /
    • 2022
  • We propose a high speed data communication method for motor drive systems with fast control cycle in order to collect state variables of motor control without degrading control performance. Ethernet is chosen for communication device, and multi-core DSP architecture is exploited for communication processing load distribution. The communication program including network protocol stack and motor control program are assigned to two separate cores, and data between two cores are exchanged using interrupt-based inter-process communication mechanism, which enables to achieve a high-speed communication performance without degrading the motor control performance. The performance of developed communication method is demonstrated by real experiments using TCP, UDP and Raw Socket protocols in an experimental setup consisting of TI's TMS320F28388D motor control card and MS Windows PC.

Development of the Automated Ultrasonic Testing System for Inspection of the flaw in the Socket Weldment (소켓 용접부 결함 검사용 초음파 자동 검사 장비 개발)

  • Lee, Jeong-Ki;Park, Moon-Ho;Park, Ki-Sung;Lee, Jae-Ho;Lim, Sung-Jin
    • Journal of the Korean Society for Nondestructive Testing
    • /
    • v.24 no.3
    • /
    • pp.275-281
    • /
    • 2004
  • Socket weldment used to change the flow direction of fluid nay have flaws such as lack of fusion and cracks. Liquid penetrant testing or Radiography testing have been applied as NDT methods for flaw detection of the socket weldment. But it is difficult to detect the flaw inside of the socket weldment with these methods. In order to inspect the flaws inside the socket weldment, a ultrasonic testing method is established and a ultrasonic transducer and automated ultrasonic testing system are developed for the inspection. The automated ultrasonic testing system is based on the portable personal computer and operated by the program based Windows 98 or 2000. The system has a pulser/receiver, 100MHz high speed A/D board, and basic functions of ultrasonic flaw detector using the program. For the automated testing, motion controller board of ISA interface type is developed to control the 4-axis scanner and a real time iC-scan image of the automated testing is displayed on the monitor. A flaws with the size of less than 1mm in depth are evaluated smaller than its actual site in the testing, but the flaws larger than 1mm appear larger than its actual size on the contrary. This tendency is shown to be increasing as the flaw size increases. h reliable and objective testing results are obtained with the developed system, so that it is expected that it can contribute to safety management and detection of repair position of pipe lines of nuclear power plants and chemical plants.

Radiologic study of the healing process of the extracted socket of beagle dogs using cone beam CT (Cone beam CT를 이용한 비글견 발치창 치유과정에 대한 방사선학적 연구)

  • Choi, Dong-Hoon;Lee, Wan;Kim, De-Sok;Lee, Byung-Do
    • Imaging Science in Dentistry
    • /
    • v.39 no.1
    • /
    • pp.19-25
    • /
    • 2009
  • Purpose: To longitudinally observe the healing process of extracted socket and the alterations of the residual ridge in healthy adult dogs using cone beam CT (CBCT). Materials and Methods: The mandibular premolars of two beagle dogs were removed and the extraction sites were covered with the gingival tissue. CBCTs (3D X-ray CT scanner, Alphard vega, Asahi Co.) were taken at baseline and at 1 week interval for 12 weeks. Radiographic density of extracted wounds was measured on normalized images with a custom-made image analysis program. The amount of alveolar crestal resorption after the teeth extraction was measured with a reformatted three-dimensional image using CBCT. Bony healing pattern of extracted wound of each group was also longitudinally observed and analyzed. Results: Dimensional changes occurred during the first 6 weeks following the extraction of dogs' mandibular premolars. The reduction of the height of residual ridge was more pronounced at the buccal than at the lingual aspect of the extraction socket. Radiographic density of extracted wounds increased by week 4, but the change in density stabilized after week 6. New bone formation was observed at the floor and the peripheral side of extracted socket from week 1. The entrance of extracted socket was sealed by a hard-tissue bridge at week 5. Conclusion: The healing process of extracted wound involved a series of events including new bone formation and residual ridge resorption.

  • PDF

A study on the receiving rate of the data of the hybrid communication system using data transfer methods for controller system of navigational aids (데이터 전송방식에 따른 항로표지 관리용 하이브리드 통신 시스템의 수신율 분석에 관한 연구)

  • Jeon, Joong Sung
    • Journal of Advanced Marine Engineering and Technology
    • /
    • v.38 no.1
    • /
    • pp.78-85
    • /
    • 2014
  • The Mu-communication board supported by hybrid communication is designed with Cortex M3, which is a low power energy consumption 32-bit microcontroller. The Cortex M3 microcontroller has UART(Universal asynchronous receiver/transmitter) ports which can set appropriately using the command line interpreter (CLI) program with each port. URAT ports are used for hybrid communication modems, GPS modules, etc. When the socket type was compared with the short message service type, the socket type was proven to be better. By improving the receiving performance in the control and management system of the AtoN, data loss was minimized. During the testing of the socket and SMS, data was collected from each buoy for 12 hours every 1 minute and the receiving rate of the data was found to be more than 98.58 % and 99.42 % respectively.