• Title/Summary/Keyword: Multiple Connection

Search Result 462, Processing Time 0.025 seconds

Development of Numerical Analysis Model for the Behavior Analysis of Bolted Connection (볼트 접합부의 거동 해석을 위한 수치해석 모델 개발)

  • Kim, Gwang-Chul
    • Journal of the Korean Wood Science and Technology
    • /
    • v.35 no.3
    • /
    • pp.1-9
    • /
    • 2007
  • To analyze the behavior of multiple bolted connection with analytical method, there was a major problem in terms of the number of bolt as two. Multiple bolted connection is wrong in other way, that is impossible to analyze the behavior of connection with various types. So the numerical analysis model was developed to analyze the behavior of connection with various types, and to overcome the limitation of number of bolt. The optimum values for analysis the behavior of multiple bolted connection with numerical methods were obtained as, r=0.35, Kx=137.5, and Ky=257.4. The numerical analysis method was developed in this study showed high efficiency for the existing methods in the behavior analysis of connection.

Splinted and non-splinted implant-supported restorations : prosthetic considerations for restoring multiple adjacent teeth (Splinted or Non-splinted: 다수의 인접한 치아 결손부 수복을 위한 임플란트 보철)

  • Yoon, Hyung-In
    • The Journal of the Korean dental association
    • /
    • v.54 no.3
    • /
    • pp.198-205
    • /
    • 2016
  • The purpose of this paper was to investigate the significance of splinted and non-splinted implant-supported restorations with an internal connection for multiple consecutively missing teeth. Upon examination of the effects of fixture-abutment connection, the distribution of occlusal load was favorable in splinted implant-prosthesis with an external connection, but effect of strain distribution was not significant in splinted implant-prosthesis with an internal connection. In splinted implant-prostheses for short implants, strain distribution was not affected by the method of retention. For cement-retained prostheses, the effect of strain distribution due to splinting was not significant. In clinical studies, non-splinted prostheses with an internal connection for multiple consecutively missing teeth showed high survival rate, mild marginal bone loss, and stable periodontal condition. However, failure to achieve optimal proximal contact between single-unit prostheses may lead to food impaction, and veneer fracture may be inevitable when the framework provides inadequate support in the proximal region. In conclusion, splinted implant-prosthesis is not an indication in all cases, and clinical consideration of its use should be based on the patient's oral condition, such as location and number of implants, formation of proximal contact, canine guidance, existence of parafunctional habit, and oral hygiene, when multiple consecutively missing teeth are replaced by internal connection type implant.

  • PDF

A Study on Safe Permanent Joint Type Multiple Socket-Outlets Development without Soldering Crimped Connection (안전형 비납땜 틀고정 영구 접속형 멀티콘센트 개발에 관한 연구)

  • Cho, Won-Seok;Lee, Wi-Ro
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
    • /
    • v.29 no.12
    • /
    • pp.47-54
    • /
    • 2015
  • Normally, multiple socket-outlet is manufactured with soldered, welded permanent connection (termination). Because this procedure is very non-environmental and requires many labor forces, many companies skip this process. To solve this these problems, this research had to design permanent joint type multiple socket-outlet, develop safer multiple socket-outlet than is sold in markets. Progressing this research, we took 3 steps. First, we had to design device for fixing a frame suitable for multiple socket-outlet. Second, this multiple socket-outlet must pass fundamental standards through international standard (IEC 60884-1) and Korean standard (K 60884-1) tests. Third, it had to pass both several mechanical and electrical tests which is more strict than fundamental standards and vibration and impact tests following KS standards for enhancing its safety. After finishing 3 steps, we could obtain objective and fair data, develop environmental permanent joint type multiple socket-outlet without soldering crimped connection.

Time Division Multiplexing Algorithm for Multiple Connection of Bluetooth Devices (Bluetooth 장치의 다중 접속을 위한 시분할 접속 알고리즘)

  • Cho, Kyoung-Woo;Jeon, Min-Ho;Oh, Chang-Heon
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
    • /
    • 2013.05a
    • /
    • pp.578-580
    • /
    • 2013
  • Recently, personal mobile devices increased according to the rise of smart devices. Thus the all smart devices load with a bluetooth of standard specifications. However, it is deficiency to service using multiple connection of bluetooth device connection limit. Also bluetooth have other problem. bluetooth can't data communication until all device connection. In this paper, we proposed multi-connect algorithm based on TDM using AT command to overcome the problems above. As a result, it is confirmed that the real-time connectivity and data transmission between multiple devices is possible.

  • PDF

Design and Implementation of PFC and THD Reduction System for CFL Mulitple Connection (다중접속 CFL용 PFC 및 THD 감소 시스템의 설계 및 구현)

  • 박종연;조호찬;최원호
    • Proceedings of the IEEK Conference
    • /
    • 2002.06e
    • /
    • pp.67-70
    • /
    • 2002
  • In this paper, we have researched a Automatic Power Factor Correction and THD reduction System for the multiple connection of CFL. Also in this paper, the power factor has been researched for the design of CFL, found the reason why the power factor is low and THD is too high. This paper has designed the PFC System for the multiple connection of CFL, and then we have increased the power factor and reduced the total harmonic distortion, by implementing them.

  • PDF

Large Area Plasma Characteristics using Internal Linear ICP (Inductively Coupled Plasma) Source for the FPD processing

  • Kim, Kyong-Nam;Lim, Jong-Hyeuk;Yeom, Geun-Young
    • 한국정보디스플레이학회:학술대회논문집
    • /
    • 2006.08a
    • /
    • pp.544-547
    • /
    • 2006
  • In this study, the characteristics of large area internal linear ICP sources of $1,020mm{\times}920mm$ (substrate area is $880mm{\times}660mm$) were investigated using a multiple linear antennas with U-type parallel connection. Using the multiple linear antennas with U-type parallel connection, a high plasma density of $2{\times}10^{11}/cm^3$ and a high power transfer efficiency of about 88% could be obtained at 5kW of RF power and with 20mTorr Ar. A low plasma potential of less than 26V and a low electron temperature of $2.6{\sim}3.2eV$ could be also obtained. The measured plasma uniformity on the substrate size of 4th generation $(880mm{\times}660mm)$ was about 4%, therefore, it is believed that the multiple linear antennas with U-type parallel connection can be successfully applicable to the large area flat panel display processing.

  • PDF

Transmission Rate Control in Heterogeneous Wireless Networks Using Multiple Connections (이기종 무선 네트워크에서 다중연결을 이용한 전송률 제어)

  • Jeong, Hyeon-Jin;Choi, Seung-Sik
    • The Journal of Korean Institute of Communications and Information Sciences
    • /
    • v.37B no.11
    • /
    • pp.993-1003
    • /
    • 2012
  • In this paper, we propose a method that wireless mobile nodes can obtain high throughput in heterogeneous wireless networks using multiple connections and it has low packet loses under handover situation. Currently, a mobile node exchanges data with server for one network connection. The proposed method can use high throughput because it doesn't only use one network(WLAN, 3G, etc.) but also use multiple wireless networks. When mobile nodes move to area to use multiple connection, mobile nodes request heterogeneous wireless networks using multiple connections message from the server and the server transmit packets using multiple connections. Also, this method doesn't disconnect previous networks, so packets losses are decreased. Using the NS-2 simulation, we verify that the propose method enhances throughput.

Multiple Network-on-Chip Model for High Performance Neural Network

  • Dong, Yiping;Li, Ce;Lin, Zhen;Watanabe, Takahiro
    • JSTS:Journal of Semiconductor Technology and Science
    • /
    • v.10 no.1
    • /
    • pp.28-36
    • /
    • 2010
  • Hardware implementation methods for Artificial Neural Network (ANN) have been researched for a long time to achieve high performance. We have proposed a Network on Chip (NoC) for ANN, and this architecture can reduce communication load and increase performance when an implemented ANN is small. In this paper, a multiple NoC models are proposed for ANN, which can implement both a small size ANN and a large size one. The simulation result shows that the proposed multiple NoC models can reduce communication load, increase system performance of connection-per-second (CPS), and reduce system running time compared with the existing hardware ANN. Furthermore, this architecture is reconfigurable and reparable. It can be used to implement different applications of ANN.

Analysis of Connection Errors by Students' Field Independence-Dependence in Learning Chemistry Concepts with Multiple External Representations (다중 표상을 활용한 화학 개념 학습에서 학생들의 장독립성-장의존성에 따른 연계 오류 분석)

  • Kang, Hun-Sik;Lee, Jong-Hyun;Noh, Tae-Hee
    • Journal of The Korean Association For Science Education
    • /
    • v.28 no.5
    • /
    • pp.471-481
    • /
    • 2008
  • This study investigated connecting errors by students' field independence-dependence in learning chemistry concepts with multiple external representations in current science textbooks. Seventh graders (N=196) at a middle school were assigned to the BL and CL groups, which were respectively taught "Boyle's Law" and "Charles's Law." A field independence-dependence test was administered. After learning the target concept with text and picture emphasizing the particulate nature of matter, a connecting test was also administered. Five types of connecting errors were identified: Insufficient connection, misconnection, rash connection, impossible connection, and failing to connect. 'Failing to connect,' 'Misconnection,' and 'Rash connection' were found to be the frequent types of connecting errors regardless of the target concepts. The frequencies and percentages of the types of connecting errors were not significantly different between the field independent and field dependent students. Educational implications of these findings are discussed.

ATM Switch Connection Control with Multiple Switch (다중 스위치에 의한 ATM 스위치 연결 제어)

  • 최광옥;권택근
    • Proceedings of the Korean Information Science Society Conference
    • /
    • 1999.10c
    • /
    • pp.396-398
    • /
    • 1999
  • 단일 망으로 다양한 서비스를 제공하기 위하여 하나의 스위치에서 다수의 제어소프트웨어를 지원해야 한다. 이를 위하여 스위치의 제어 인터페이스를 표준화하려는 시도가 활발하다. 본 논문에서는 다수의 스위치를 단일 제어기로 제어하는 ATM 연결 제어 방법을 제안한다. 본 논문에서 제안하는 방법으로 제어망과 트랜스포트 망을 분리함으로써 유연한 망의 구성이 가능해지고, 병렬 스위치 제어를 통하여 시그널링의 효율을 꾀할 수 있다. 이를 위하여 단일 스위치를 통한 복합 연결 (compound connection)에 대하여 단일 제어 인터페이스를 통한 제어가 가능한 원소 연결(atomic connection)로의 변환 모델 등을 제시한다.

  • PDF