• 제목/요약/키워드: jams

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반출입 예약을 통한 컨테이너 터미널의 서비스 수준 향상 (Vehicle Booking System for Container Terminal Operation Efficiency)

  • 신재영;박종원
    • 한국항해항만학회:학술대회논문집
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    • 한국항해항만학회 2015년도 추계학술대회
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    • pp.165-166
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    • 2015
  • 국제경기의 악화로 인한 항만물동량 감소 및 터미널의 무한경쟁체제 상황에서 컨테이너 터미널은 효율적으로 비용을 감소하는 방안을 마련하고 환경의 변화에 적응하는 역량을 강화하는 노력을 하고 있다. 화주와 선사는 높은 서비스수준을 원하며 터미널은 한정된 자원에서 터미널을 효율적으로 운영하려는 요구가 맞물려 컨테이너 터미널의 반출입시간의 조정 및 사전 예약제에 대한 공감대가 형성되고 있는 실정이다. 컨테이너 터미널의 반출입 예약제는 업무피크의 분산으로 터미널의 효율과 생산성 향상, 운송차량의 회전율 향상 및 교통체증 완화도 기대할 수 있다. 본 논문에서는 반출입예약제를 통한 컨테이너 터미널의 서비스 수준 향상에 관한 방안을 제시하고자 한다.

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자율주행 자동차 기술개발 동향 (Technological Development Trends for Self-driving Cars)

  • 김민준;장종욱
    • 한국정보통신학회:학술대회논문집
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    • 한국정보통신학회 2017년도 춘계학술대회
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    • pp.246-248
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    • 2017
  • 자율주행자동차는 자동차 스스로 주변 환경을 인식하여 위험을 판단하고 주행경로를 계획하여 운전자 주행조작을 최소화하며 스스로 안전주행이 가능한 인간 친화형 자동차를 말한다. 자율주행자동차가 필요한 이유는 한정된 도로 상에서의 교통체증을 감소와 탄소 저감을 목적으로 시작되었다. 이러한 관련 자율주행자동차 사업 추진은 자동차 업체의 기존 사업 유지 및 확대와 ICT 기업의 신규사업 창출과 진입효과를 기대 할 수 있다. 관련 인증기관은 자율주행자동차에 대한 법적과 제도적 기반 마련이 시급하다. 그럼으로써 소비자에게 새로운 서비스가 제공될 수 있을 것이다. 따라서 본 논문에서는 자율주행자동차에 대한 기술개발 동향을 소개한다.

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인도 종교복식의 상징성에 관한 연구 (A Study on the Symbolism of Religious Costume of India)

  • 권영실;조우현
    • 한국의류학회지
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    • 제21권4호
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    • pp.677-688
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    • 1997
  • The purpose of this study was to find out the symbolism of religious costume which has showed the religious belief system through costume practice and culture. Indian Religious costume each has its own mark was investigated in this study. In India, religion is a way of life. It is an integral part of the entire Indian tradition. The results were as follows; India's several main religions are Hinduism(About 80% of population) , Islam (About 11% of population) , Sikhism(less than 2% of population) , Jainism(less than 1% of population) , Buddhism(less than 1% of population) and Christianity(About 3% of population but excluding here) Religious faith system which symbolized Godhood, spiritualty, ascetics, restraint, chastity, sacred and dignity gave a certain shape to each color, ornaments, dressing and marking of religion costume. In connection with religion costumes, there were Hindu's Tika, sacred ash, long hair, knot and holy band (Yajnopavita) , Buddhist's kayysa and tonsures, Jams' no covering, Muslim's chador and skullcap, Sikh's turban (with no cutting hair) , comb, steel bracelet, drawers, sword or dagger. The characteristics, head especially of thebody and white in the colors were made much account for India religion costume. Traditional costume seems to be worn at the present times in India. But apparently these costume associated with religion costume because of Hindu more than 80% of population.

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롤 포밍 공정에서 컷팅 펀치 인선 각도가 제품 절단에 미치는 영향에 관한 연구 (A Study on the Effects of Products Section by Cutting Punch's Edge Angle during Roll Forming Process)

  • 정문수;김세환;이춘규
    • Design & Manufacturing
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    • 제10권2호
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    • pp.44-49
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    • 2016
  • The roll forming produces mass products using the continuous production process. Also we need the process that continuous long material or goods cutting into a desired length. Our study uses 3-D driving cutter and roll forming material as SPCC to investigate this. When we cut the material using the process of roll forming, the shear resistance is raised at the cutting punch's edge. The result is remained the trouble about burr and progressive deformation on the material. This study shows the method minimizing the above trouble. The material of punch was considering heat generated on the continuous production process. So we used the type of STD 61 for the material of punch and had the vacuum heat treatment for the surface hardness of HRC 53. The structure of the mold is designed with forming a double cam die at the upper punch and the both sides of central core. We conducted the experiment three times. In the result when had to make V-groove within the angle between 105 and 110 on the punch front end, we could get the minimum shear resistance on the punch front end. Also with the same condition we minimizes the material jams in the continuous production process.

VMS 표출형태별 운전자 주시시간 특성에 관한 연구 (A Study on Characteristics of Driver's Visual Time-varying on the Message Disply Form)

  • 김명수
    • 한국도로학회논문집
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    • 제15권1호
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    • pp.163-169
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    • 2013
  • PURPOSES: The urban traffic problems can be defined as general problems for smooth traffic flow including maintenance of mass transportation system according to suddenly increased population, traffic regulations for vehicles and pollution problem. As a method for solving traffic jams, one of the traffic problems of late, interest in Intelligent Traffic System(ITS) is increasing sharply, which is a system managing traffic demand by providing passers with information on traffic state of path and road conditions before they pass the road through ATIS, a field of ITS. METHODS: Variable message signs(VMS) is used on the roads as a method for providing information to promote smooth traffic flow and safety and prevent traffic accidents in advance by providing drivers with various information while driving. RESULTS: Recently, as ITS industry has been vitalized and technical factors of VMS have developed, various kinds of information is provided but the effect of VMS has not been maximized due to its limited type. CONCLUSIONS: Therefore, this study intends to provide methods for effective information transfer by analyzing driver's visual behavior characteristics for VMS and presenting a basis for maximizing VMS effect after considering read by expression type.

공간 네트워크 데이터베이스에서 공간 제약을 고려한 경로 내 최근접 질의처리 알고리즘 (In-Route Nearest Neighbor Query Processing Algorithm with Space-constraint in Spatial Network Databases)

  • 김용기;김아름;장재우
    • 한국공간정보시스템학회 논문지
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    • 제10권3호
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    • pp.19-30
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    • 2008
  • 최근 공간 네트워크 데이터베이스를 위한 질의처리 알고리즘에 관한 연구가 많은 관심을 받고 있으나, 경로-기반 질의에 대한 연구는 매우 미흡한 실정이다. 공간 네트워크 데이터베이스에서는 이동객체가 공간 네트워크상에서만 이동하기 때문에, 위치기반 서비스 및 텔레매틱스의 응용을 지원하기 위해 경로 내 최근접(In-Route Nearest Neighbor : IRNN) 질의와 같은 경로-기반 질의에 대한 효율적인 질의처리 알고리즘 연구가 필수적이다. 그러나 기존 경로 내 최근접 질의처리 알고리즘은 도로내의 병목현상을 반영하지 못하는 문제점이 존재한다. 따라서 본 논문에서는 공간제약을 고려한 경로 내 최근접 질의처리 알고리즘을 제안한다. 마지막으로, 기존 알고리즘과의 성능 비교를 통하여 제안하는 알고리즘이 우수함을 보인다.

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East Asian Journal of Business Economics and Development Strategy

  • KIM, Byoung-Goo;YOUN, Myoung-Kil
    • 연구윤리
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    • 제2권2호
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    • pp.17-20
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    • 2021
  • Purpose: This paper is to review and analyze development strategy of the East Asian Journal of Business Economics and to look at the previous and current changed publication system and process in order to step up the article quality of EAJBE. Research design, data and methodology: This study grasped the current status and strategy of this journal through literature review. In addition, through the case of EAJBE, the internationalization strategy and research ethics policy of this journal were analyzed. Results: EAJBE clarifies the copyright delegation procedure of the final publication paper. Regarding compliance with research ethics, Editor-in-Chief and Management Editor are completing research ethics training. From 2017 to the present, Editor-in-Chief and Management Editor have completed online ethics training and hold certificates of completion. Conclusions: EAJBE specifies the rules for exclusion of examination by the contributor and the examiner belonging to the same institution and actually operates in this way. Currently, by using the Jams system, the plagiarism verification procedure is operated using the thesis plagiarism prevention system. Finally, in order to strengthen research ethics standards, EAJBE is trying to establish and strengthen a verification system for each paper using the system of the Korea Research Foundation, not the previous foreign paid plagiarism system.

Traffic Emission Modelling Using LiDAR Derived Parameters and Integrated Geospatial Model

  • Azeez, Omer Saud;Pradhan, Biswajeet;Jena, Ratiranjan;Jung, Hyung-Sup;Ahmed, Ahmed Abdulkareem
    • 대한원격탐사학회지
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    • 제35권1호
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    • pp.137-149
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    • 2019
  • Traffic emissions are the main cause of environmental pollution in cities and respiratory problems amongst people. This study developed a model based on an integration of support vector regression (SVR) algorithm and geographic information system (GIS) to map traffic carbon monoxide (CO) concentrations and produce prediction maps from micro level to macro level at a particular time gap in a day in a very densely populated area (Utara-Selatan Expressway-NKVE, Kuala Lumpur, Malaysia). The proposed model comprised two models: the first model was implemented to estimate traffic CO concentrations using the SVR model, and the second model was applied to create prediction maps at different times a day using the GIS approach. The parameters for analysis were collected from field survey and remote sensing data sources such as very-high-resolution aerial photos and light detection and ranging point clouds. The correlation coefficient was 0.97, the mean absolute error was 1.401 ppm and the root mean square error was 2.45 ppm. The proposed models can be effectively implemented as decision-making tools to find a suitable solution for mitigating traffic jams near tollgates, highways and road networks.

Using Ultrasonography Measurements to Determine the Depth of the GB 21 Acupoint to Prevent Pneumothorax

  • Chen, Hsiao-Neng;Chang, Chau-Yi;Chen, Lian-Zen;Chang, Yu-Jun;Lin, Jaung-Geng
    • Journal of Acupuncture & Meridian Studies
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    • 제11권6호
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    • pp.355-360
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    • 2018
  • Introductions: Pneumothorax is the most frequent severe acupuncture-related adverse event occurring at the GB 21 acupoint. This study used ultrasonography (US) to measure the depth of the GB 21 acupoint in adults and assessed its applicability for ensuring safe acupuncture practices. Materials and methods: A US probe was used to measure the vertical depth from the skin to the pleural line of the apex of the lungs at the right and left GB 21 acupoints. The sex, age, body weight, height, and body mass index of each person were recorded. Student t test and generalized estimating equations were used for statistical analysis. Results: Sixty women and 41 men with a median age of 29 years were included in this study. The depth of GB 21 increased with body weight, height, and body mass index (p < 0.001). The mean depth of GB 21 in men (17.4 mm) was greater than that in women (14.6 mm; p < 0.001). The depth difference between the right and left shoulders was significant in men (p < 0.001) but not in women. Conclusions: US can be used to measure GB 21 acupoint depth. Further control studies on its use to ensure safe clinical practices, including preventing acupuncture-related pneumothorax, are warranted.

The Effects of Wet Cupping Therapy on the Blood Levels of Some Heavy Metals: A Pilot Study

  • Umar, Nafisa K.;Tursunbadalov, Sherali;Surgun, Serdar;Welcome, Menizibeya O.;Dane, Senol
    • Journal of Acupuncture & Meridian Studies
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    • 제11권6호
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    • pp.375-379
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    • 2018
  • Background and aim: Heavy metals have been recognized as toxins for centuries. Cupping therapy has been shown to aid in the excretion of accumulated fluids and toxins from the interstitial fluid. The aim of this study was to investigate the effects of wet cupping therapy on blood levels of heavy metals. Methods: Thirteen healthy male individuals [mean age ${\pm}$ standard deviation, $28.47{\pm}6.18$] participated in this study. Venous blood samples were collected 5 min before and 30 days after the wet cupping therapy. Five points of the posterior neck and bilateral perispinal areas of the neck and thoracic spine were selected for cupping therapy. The levels of aluminium (Al), zinc (Zn), and cadmium (Cd) were measured using an atomic absorption spectrophotometer. Results: The levels of heavy metals (Al, Zn, and Cd) after cupping therapy were significantly lower than the levels before therapy. Conclusions: These results suggest that wet cupping therapy has an excretory effect on the kidney. Wet cupping therapy may clear blood from excess heavy metals.