• Title/Summary/Keyword: presents

Search Result 35,700, Processing Time 0.049 seconds

A Multi-Module Three-Loop Controlled Boost Converter for Distributed Power Applications (삼중 루우프 제어방식을 채택한 분산형 전력시스템을 위한 멀티 모듈 승압형 컨버터)

  • Choi, Byung-Cho;Han, Dong-Hoon
    • Proceedings of the KIEE Conference
    • /
    • 1998.11a
    • /
    • pp.373-377
    • /
    • 1998
  • This paper presents the control design of a three-module boost converter with a two-stage output filter. An advanced three-loop control scheme is employed to the control design in order to obtain good dynamic performance of the converter at the presence of the secondary filter stage. The paper presents the control design, dynamic analysis and performance improvement with the three-loop control.

  • PDF

The Research Study on Increase of Railway Competitive pouter (철도의 경쟁력제고를 위한 조사연구)

  • 이용상;권용장
    • Proceedings of the KSR Conference
    • /
    • 1999.11a
    • /
    • pp.54-64
    • /
    • 1999
  • This paper presents a validity of improving core competence of railway industries based on data. The Competitive power of railway largely depends on the quality of railway service and operating systems. Customer life presents itself in a large variety of settlement patterns. As a result of this paper, we will get the opportunities to reduce the dissatisfaction of customer and improve the stability of train operation.

  • PDF

Abandoned Landfills in Indonesia and Their Problems

  • Ling, Marisa Mei;Park, Jun-Boum
    • Journal of Soil and Groundwater Environment
    • /
    • v.14 no.4
    • /
    • pp.1-9
    • /
    • 2009
  • This paper presents current condition of landfills in Indonesia and the problems exist. It also presents a review of study on abandoned landfill in Bandung, West Java where the actual problems can be seen and an insight to the solutions were developed.

MODELLING THE CONTRIBUTION OF KNOWLEDGE MANAGEMENT TOWARDS ACHIEVING ORGANISATIONAL BUSINESS OBJECTIVES

  • Le Chen;Sherif Mohamed
    • International conference on construction engineering and project management
    • /
    • 2005.10a
    • /
    • pp.714-718
    • /
    • 2005
  • Knowledge management (KM) continues to receive mounting interest within the construction industry due to its potential to offer solutions for organisations seeking competitive advantage. This paper presents a KM input-process-output conceptual model comprising unique and well-defined theoretical constructs representing KM practices and their internal and external determinants in the context of construction. The paper also presents the underlying principles used in operationally defining each construct using extant KM literature, and offers a number of testable hypotheses that capture the inter-relationships between the identified constructs.

  • PDF

MULTIFACTOR MODELLING IN CONSTRUCTION MANAGEMENT

  • Leszek Janusz;Oleg Kaplinski
    • International conference on construction engineering and project management
    • /
    • 2005.10a
    • /
    • pp.633-637
    • /
    • 2005
  • The paper presents a multifactor modelling of construction processes. There are three phases of the proposed extended procedure. Tools for these phases from chronometric test to verifying of the assumed model are indicated. Apart from the classic verification activities the method of artificial neural networks has been successfully applied. The paper presents the usage of these tools to model the process of assembly of structural corrugated steel plate structures.

  • PDF

Role of Social Media in Online Radicalization: Literature Review and Research Agenda

  • Tanu Shree;Sumeet Gupta
    • Asia pacific journal of information systems
    • /
    • v.29 no.2
    • /
    • pp.268-282
    • /
    • 2019
  • This study attempts to synthesize the literature on radicalization and examine the role of social media in promoting radicalization. The study is based on the review of prominent studies on radicalization in both offline and online settings. The study builds upon the literature in offline settings on radicalisation and presents a research agenda for radicalization in online settings. The study also presents a model of radicalization delineating the role of social media.

${\ll}$소문(素問).천원기대론(天元紀大論)${\gg}$ 에 대한 연구(硏究)

  • Park Gyeong;Geum Gyeong-Su;Kim Nam-Su;Yuk Sang-Won
    • Journal of Korean Medical classics
    • /
    • v.13 no.1
    • /
    • pp.102-116
    • /
    • 2000
  • In Cheon Won Gi Dae Ron(天元紀大論), Cheon(大) means Nature, Won(元) means sources, Gi(紀) is Gang Gi(綱紀) that means rules or regulations, so Cheon Won Gi(天元紀) means sources and rules of change that make Nature phenomenons. This volume treats of cause that weather change of Nature caused by, and its general rules, and presents fundamental notions and systems of measuring of 'Five elements' evolutions and Six kinds of natural factors(五運六氣)'. So named Cheon Won Gi Dae Ron(天元紀大論). This article of the research on the Cheon Won Gi Dae Ron(天元紀大論) can be divided into 3 chapters. Chapter 1 presents a theory that the principle of changes of creations' birth, groth and extinction is complished by sympathizing with Hyeong(形) of Ji(地) and Gi(氣) of Cheon(大) by rules of movement of O Un Yum Yang(五運陰陽). Chapter 2 presents theories that Tae Heo(太虛) makes Won Gi(元氣), and this Won Gi(元氣) makes the change of creations' birth, groth and extinction, and movement of O Un(五運) controls creation of nature. And treats of that 'excessive and short(太過不及)' that is made by a quality of Gi(氣) and ups and dons of Hyeong(形) controls weather of year. In Chapter 3, Cheon O Ji Yuk(天五地六) regard six and five as Yong(用). And A Cycle that movment that sympathizing with O Un(五運) and Yuk Gi(六氣) is Il Gi(一氣) as 30 years, and Il Ju(一周) as 60 years. And presents that O Un(五運) and Yuk Gi(六氣) that Gan Ji(干支) control.

  • PDF

An Experimental Study on Fatigue Behavior in Welded SM45C Steel Rod (SM45C 환봉 용접재의 피로거동에 관한 실험적 연구)

  • Lee, Yong-Bok;Jung, Jae-Keun
    • Transactions of the Korean Society of Mechanical Engineers A
    • /
    • v.32 no.6
    • /
    • pp.519-525
    • /
    • 2008
  • For this study, SM45C steel rods using generally for power transmission shafts and machine components was selected and welded by butt-GMAW method. And then it was studied about estimation of fatigue strength and the region of infinite life by Haigh diagram using Goodman's equation. Fatigue strength in weld zone presents highly in order of the boundary between deposited metal zone and heat affected zone, deposited metal zone, heat affected zone. This result agrees with distribution of hardness in weld zone. Fatigue strength in base metal zone presents highly compared with weld zone in low cycles between $10^4$ cycles and $10^6$cycles, but it presents the lowest fatigue strength on the order of heat affected zone in the vicinity of $10^6$cycles. It is the result that the first high compressive residual stress distributed by drawing process of the steel rods is released and the base metal is softened by alternating stresses. The region of infinite life by Haigh diagram presents highly in order of the boundary between deposited metal zone and heat affected zone, deposited metal zone, heat affected zone. From this results, it is demanded that the stress for safety design of machine components using SM45C butt-welded steel rods must be selected in the region of the lowest infinite life of heat affected zone.

A Study on the costume Styles of Femme Fatale in Film Noir - focused on < Double Indemnity(1944) > - (필름 느와르에 나타난 팜므 파탈의 복식유형 연구 - <이중배상(1944)>을 중심으로 -)

  • Kim, Hye-Jeong
    • Journal of Fashion Business
    • /
    • v.15 no.4
    • /
    • pp.1-15
    • /
    • 2011
  • Femme Fatale in Film Noir is a wicked woman character who seduces the male partner to a ruin. In the film, the dress style is of extreme importance for the personality creation of the character as well as the development of the plot. With this background, I have looked over the Femme Fatale dress style that appears in the movie . First, it expresses Femme Fatale which stresses the feminine trait by a dress style with enlarged chest and hip parts and long, slim silhouette with tight waist and knee line. Second, the Femme Fatale with pretended purity presents narcissistic satisfaction like a saint virgin by wearing a neck-high one-piece dress embellished with frills, but the use of mirror represents self-alienation and the vanity of purity. Third, the Femme Fatale with its military dress style presents authoritative sternness which leads seduced male into ruin with its destructive power. Fourth, wearing jersey type or knitted wear that sticks to the body presents sensual Femme Fatale. Fifth, the tulle, chiffon, and white handkerchief used for the creation of grotesque Femme Fatale represents harmlessness and prohibition of immoral behavior, and the black gloves, pillbox, and the number on the tulle present her uneasy psychological state from the fear of being discovered after murdering her husband. On the other hand, the see-through tulle presents alluring sensual beauty. Sixth, the combination of the dialogue in the final sequence and drapery type as in Greek goddess represents the saint virgin of salvation who acknowledges her own fault and returns to her purity again. In addition, accessories and others made from shining material represent hidden conspiracy through simple dress and contradictory dynamics, and shoes embellished with bonbon, etc represent sexual implications in connection with male.

A FREQUENCY DOMAIN RAW SIGNAL SIMULATOR FOR SAR

  • Kwak Sunghee;Kim Moon-Gyu;Shin Dongseok;Shin Jae-Min
    • Proceedings of the KSRS Conference
    • /
    • 2005.10a
    • /
    • pp.530-533
    • /
    • 2005
  • A raw signal simulator for synthetic aperture radar (SAR) is a useful tool for the design and implementation of SAR system. Also, in order to analyze and verify the developed SAR processor, the raw signal simulator is required. Moreover, there is the need for a test system to help designing new SAR sensors and mission of SAR system. The derived parameters of the SAR simulator also help to generate accurate SAR processing algorithms. Although the ultimate purpose of this research is to presents a general purpose SAR simulator, this paper presents a SAR simulator in frequency domain at the first step. The proposed simulator generates the raw signal by changing various simulation parameters such as antenna parameters, modulation parameters, and sampling parameters. It also uses the statistics from an actual SAR image to imitate actual physical scattering. This paper introduces the procedures and parameters of the simulator, and presents the simulation results. Experiments have been conducted by comparing the simulated raw data with original raw SAR image. In addition, the simulated raw data have been verified through commercial SAR processing software.

  • PDF