• Title/Summary/Keyword: Common Mode

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Power-flow Independent Modeling of Vehicle Powertrain (Power-flow에 독립적인 파워트레인 모델링)

  • 최기영;이승종
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2001.04a
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    • pp.267-270
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    • 2001
  • A lot of efforts have been made to analyze the performance of the vehicle equipped with automatic transmission through simulation. It might be necessary to understand the different types of transmissions, i.e., different power flows, for different models. If there is a module that can be applied to different types of automatic transmission, it could be helpful to transmission-related engineers. This study has started up from this idea. The common bond graph has been obtained from several types of the automatic transmission. The overall generalized equations and kinematic constraint equations have been derived using virtual power sources on common bond graph. They are used to derive state equations and constraints. These equations have been applied as an application to the vehicle equipped with two simple planetary gear set type of Ravigneaux gear type automatic transmission. The state equation, kinematic constraints, and dynamic constraints have been derived in every gear and shift operation using overall generalized equations and kinematic constraint equations. Simulations for constraint speed running, standing-start running, rolling-start running, and LA-4 mode have been conducted to analyze the performance of the vehicle powertrain using GVPS(Generalized Vehicle Powertrain Simulation) program wit pull down menus.

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Optimal Scheduling of Multi-product Batch Process for Common Intermediate Storage Policy; A Model for Batch Process Automation (다품종용 회분식 공정에서의 중간 저장 탱크 공유를 위한 최적 생산계획 ; 회분식 조업의 자동화 모델)

  • 정재학;이인범;양대륙;장근수
    • 제어로봇시스템학회:학술대회논문집
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    • 1992.10a
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    • pp.303-308
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    • 1992
  • In this study, we propose a shared storage system which is more efficient policy than MIS(Mixed Intermediate Storage) policy for relatively rare storage system and can be called CIS(Common Intermediate Storage) policy. Using this strategy, we develop a new completion time algorithm and apply it to two kinds of optimal or near optimal scheduling method; combinatorial search and simulated annealing method. We also extend this strategy to other storage policy, for example MIS policy, with PLC(Programmable Logic Controller) logic and on/off action of electronic valves. It thus can be accepted as a basic form of FMS(Flexible Manufacturing System) for operating various storage policies. Finally we suggest the interlocking block to compansate for the shortcoming of CIS policy, i.e, complication of operation and safety, resulting in a basic batch process automation mode.

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Development of Medium-Duty Diesel Engine with CP3.3 Common Rail - Concept Study and Initial Experimental Work (커먼레일 중형 디젤엔진의 개념설계 및 초기 시험개발)

  • 김만영;허행표;김창일;최규훈
    • Transactions of the Korean Society of Automotive Engineers
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    • v.11 no.2
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    • pp.69-74
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    • 2003
  • An experimental feasibility study of the E3.9 engine with CP3.3 and EDC7C was conducted to understand the initial performance and the possibility for EURO-III regulation. ID cycle simulation for concept study was conducted using the BOOST. Also, some basic investigations through such various parameters as injection timing and rail pressure have been carried out to find the feasibility on EURO-III ESC mode. Based on the results, the feasibility of the E3.9 engine for EURO-III characteristics such as performance, emissions, and fuel economy was demonstrated.

On the Male Organs of Rhodymeniales (홍조 Rhodymeniales의 웅성생식기관에 관한 연구)

  • 이인규
    • Journal of Plant Biology
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    • v.12 no.4
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    • pp.1-8
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    • 1969
  • According to the mode of development of antheridia and antheridial mother cells, the antheridium formation of Rhodymeniales is divided into two types. I. Separate Type; Antheridial mother cells are separate one another. Antheridia and the mother cell are surrounded by the common wall. The superficial gelatinous wall covering antheridial sori disappears during the antheridium formation. Spermatia are comparatively large. Halosaccion saccatum, H. firmum, Rhodymenia palmata and Rh. marginicrassa. II. Seriate Type; Antheridial mother cells, originated from the same epidermal cell, are seriate one another with a pit-connection. Antheridia and the mother cell do not have the common wall. The superficial gelatinous wall remains during the antheridium formation. Spermatia are comparatively small. Rhodymenia intricata, Rh. pertusa, Chrysymenia wrightii, Lomentaria hakodatensis, L. catenata, Binghamia californica and Champia parvula.

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A syudy of Algorithm using the method of HLMF and NCD on the 'Lak-seo nine palace' (HLMF 및 NCD 기법을 적용한 낙서구궁의 Algorithm에 관한 연구)

  • Han, Doung-Soo;Cho, Sung-Je
    • The Journal of Korea Institute of Information, Electronics, and Communication Technology
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    • v.4 no.2
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    • pp.141-151
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    • 2011
  • This paper aim at producing a Digital Modeling of the science of divination using a study of a new method with a mathematical function on "Lak-seo nine palace". For that goal, we must study a new law of moving forward and a new common difference on 'Lak-seo nine place'. We call this "the method of HLMF and NCD". Therefore, When drawing up 'a plan of Lak-seo nine palace', we will provide convenience in the field, so we don't make it by handwrite, but will produce it by a digital mode.

Transflective liquid crystal display with single cell gap and simple structure

  • Kim, Mi-Young;Lim, Young-Jin;Jeong, Eun;Chin, Mi-Hyung;Kim, Jin-Ho;Srivastava, Anoop Kumar;Lee, Seung-Hee
    • 한국정보디스플레이학회:학술대회논문집
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    • 2008.10a
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    • pp.340-343
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    • 2008
  • This work reports the simple fabrication of the single cell gap transflective liquid crystal display (LCD) using wire grid polarizer. The nano sized wire grid polarizer was patterned on common electrode itself, on the reflective part of FFS (Fringe field switching) mode whereas the common electrode was unpatterned at transmissive part. However, this structure didn't show single gamma curve, so we further improved the device by patterning the common electrode at transmissive part. As a result, V-T curve of proposed structure shows single gamma curve. Such a device structure is free from in-cell retarder, compensation film and reflector and furthermore it is very thin and easy to fabricate.

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A Study on the Dancing&Music Various Kinds of Entertainer's Costumes of Ancient China(4-3) -Focusing on the West Dancer & musicians's Costumes of Dang Dynasty- (중국의 무악.백희 연예인 복식에 관한 연구(4-3) - 당대의 사역 무악인 복식을 중심으로 -)

  • 임영미
    • Journal of the Korean Society of Costume
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    • v.47
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    • pp.19-32
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    • 1999
  • The results from the consideration of this are as follows. 1. Dan dynasty has been 10-parts dancer and musician group for courtesy ceremonial meetings of ancient china. 2. Except ceremonial dance and music common dance and musics performed it in front of common peaples meetings. 3. After unification of Dang dynasty many commercial men and artist come frome western of China threfore influenced their costume habbits and behabiers from royal families costumes and common peaples costume without concern of that one's social position. 4. As the people who lived in thewest areas of old china there characterestics of the costumes are open breast jacked breast laped long skirt long scarf long boots narrow sleeve jackets patterend textilles(for womens) round neck narrow sleeved one-pies dress belt, long boots. patterend textiles(for mens). 5. Dancer's Costumes mode are as follows: 1) For females : high hair style, Twin 'high hair style. jewrery decorated hat bird's hair decorated cap. ribons. 2) For mens: Bok-doo. Hokongdu 6. Except traditional old china dancer dress they have many interested dancer dress for instance dang dynasty's 'Ye-sang woo yui dnace' dancer dress is very elegant and interested hip level jacket has peacoak wing shaped sleeves and long skirt has try angles shape attached apron this dancer dress begins wi-jin nam·book-dynasty. 7. Men dancer dress is just head cap bok doo long narrow sleeved one-pies dress.

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Diminishing Procedural Boundaries in International Arbitration

  • Pareek, Abha
    • Journal of Arbitration Studies
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    • v.23 no.4
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    • pp.123-138
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    • 2013
  • The surge of cross border trade and transactions has seen international arbitration fast emerging as the preferred mode of dispute resolution. This phenomenon is especially remarkable in the Asian region. The Singapore International Arbitration Centre ("SIAC") aspires to contribute to this growth as one of the leading arbitral institutions. The objective of this article is to provide an insight into the key features of SIAC Rules. This article has been divided into two parts; the first part discusses how the SIAC Rules are helpful in building bridges in international arbitration between the common law and civil law systems. We have attempted to throw light on how the SIAC Rules may be tailored by the parties to bring about a harmonization in the common law and civil law practices in the conduct of the arbitration proceedings. In the second part of the article, we discuss the two most popular procedures introduced in the SIAC Rules in 2010 i.e. 'Emergency Arbitration' and 'Expedited procedures'. The emergency arbitration provisions enable a party to obtain order(s)/award for urgent interim relief(s) upon commencement of arbitral proceedings but pending the constitution of the main Tribunal. The expedited Procedure provisions give parties the option of having their disputes determined in six (6) months from the date of the constitution of the tribunal.

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A New Counting Scheme for MBS in WiBro (WiBro MBS상에서의 새로운 Counting Scheme)

  • Sung, Nag-Bum;Kim, Kyung-Tae;Youn, Hee-Yong
    • The KIPS Transactions:PartC
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    • v.15C no.4
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    • pp.263-272
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    • 2008
  • Recently, WiBro has been developed to efficiently support real-time broadcasting with wireless system. MBS (Multicast Broadcast Service) based on WiBro has numerous applications such as DMB. Since the current MBS uses only common channel managed by scheduling, it cannot effectively support many users at the same time. This paper proposes a new counting scheme with which the channel mode can be properly switched between common channel and dedicated channel. It thus allows efficient use of limited radio resource in WiBro for the MBS.

Design and Efficiency Analysis 48V-12V Converter using Gate Driver Integrated GaN Module (게이트 드라이버가 집적된 GaN 모듈을 이용한 48V-12V 컨버터의 설계 및 효율 분석)

  • Kim, Jongwan;Choe, Jung-Muk;Alabdrabalnabi, Yousef;Lai, Jih-Sheng Jason
    • The Transactions of the Korean Institute of Power Electronics
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    • v.24 no.3
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    • pp.201-206
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    • 2019
  • This study presents the design and experimental result of a GaN-based DC-DC converter with an integrated gate driver. The GaN device is attractive to power electronic applications due to its superior device performance. However, the switching loss of a GaN-based power converter is susceptible to the common source inductance, and converter efficiency is severely degraded with a large loop inductance. The objective of this study is to achieve high-efficiency power conversion and the highest power density using a multiphase integrated half-bridge GaN solution with minimized loop inductance. Before designing the converter, several GaN and Si devices were compared and loss analysis was conducted. Moreover, the impact of common source inductance from layout parasitic inductance was carefully investigated. Experimental test was conducted in buck mode operation at 48 -12 V, and results showed a peak efficiency of 97.8%.