• Title/Summary/Keyword: dispatching

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Design of Experiment and Analysis Method for the Integrated Logistics System Using Orthogonal Array (직교배열을 이용한 통합물류시스템의 실험 설계 및 분석방법)

  • Park, Youl-Kee;Um, In-Sup;Lee, Hong-Chul
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.12 no.12
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    • pp.5622-5632
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    • 2011
  • This paper presents the simulation design and analysis of Integrated Logistics System(ILS) which is operated by using the AGV(Automated Guided Vehicle). To maximize the operation performances of ILS with AGV, many parameters should be considered such as the number, velocity, and dispatching rule of AGV, part types, scheduling, and buffer sizes. We established the design of experiment in a way of Orthogonal Array in order to consider (1)maximizing the throughput; (2)maximizing the vehicle utilization; (3)minimizing the congestion; and (4)maximizing the Automated Storage and Retrieval System(AS/RS) utilization among various critical factors. Furthermore, we performed the optimization by using the simulation-based analysis and Evolution Strategy(ES). As a result, Orthogonal Array which is conducted far fewer than ES significantly saved not only the time but the same outcome when compared after validation test on the result from the two methods. Therefore, this approach ensures the confidence and provides better process for quick analysis by specifying exact experiment outcome even though it provides small number of experiment.

An Empirical Analysis of Influencing Factors toward Public Transportation Demand Considering Land Use Type Seoul Subway Station Area in Seoul (토지이용유형별 서울시 역세권 대중교통 이용수요 영향인자 실증분석)

  • Oh, Young Taek;Kim, Tae Ho;Park, Je Jin;Rho, Jeong Hyun
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.29 no.4D
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    • pp.467-472
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    • 2009
  • Even if Seoul City administration improved its public transportation service, transportation model share in seoul has not been increased. Subway user is also decreasing. Therefore, policy transition into TOD(Transit Oriented Development) should be applied in oder to enhance subway modal share. This paper develops a influencing model by using variables of transportation demand and supply. In addition, it provides major influencing factors for users in subway station area and level of transportation supply based on the analysis results. The results show that: first, cluster analysis presents that traffic pattern is proved to be different according to land use characteristics(residence, non-residence); second, main transportation variables such as transferring distance, the number of bus stop, the number of short distant bus lines, and the number of bicycle are more supplied in residential area compared to non-residential areas; third, the number of lines, bus dispatching interval, operating time, and distance between subway stations are more supplied in non-residential areas than residential areas. All in all, the results will be useful for providing priority of considerations in case of decision-making on public transportation policy in subway station area.

A Comprehensive Review of the Foreign Literature regarding Protest Crowd Counting (집회시위 참가인원 집계방식에 대한 선행연구 고찰 - 국외연구 분석 중심으로 -)

  • Kim, Hak-kyong
    • Korean Security Journal
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    • no.58
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    • pp.9-34
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    • 2019
  • The Korean Police Force is equipped with the dual responsibility to not only protect the constitutional right to protest, but also prevent potential disorder and misconduct might be caused by the abuse of such a right. To this end, the Korean national police employ the crowd counting methodology, termed 'Maximum Figure at Any One Time' with a view to dispatching the proportionate number of police officers to protest scenes for safety management. However, protest organizers rather take advantage of 'Cumulative Figure' methodology, the purpose of which being to publicize the wide recognition of success, noticeably by demonstrating that as many people as possible support for their cause or voice. Hence, different estimates generated by different methods have raised serious political issues in Korean society. Nevertheless, it is found out that there are only three existing academic studies in Korea regarding crowd counting methods, and they are mainly geared towards comparing the two methods, unfortunately without any attempt to analyze the foreign literature in details. Keeping the research gap in mind, the research conducts a comprehensive review of the foreign literature with relation to protest crowd counting methods. Derived from the review and analysis, the counting methods can be broadly categorized into the three models such as: 1) Grid/Density Model, 2) Moving Crowds Model, and 3) Electronic & Non-Image Model. In the end, the research provides brief explanations regarding specific research findings per each model, and further, suggests some policy implications for the development of more accurate crowd counting methodology at protests in Korea.

Coverage Patterns of the Internet News Media on the'US-Iraq War'and its Discourse Structure: With an emphasis of analysing time and discourse structure of the 'Oh My News' news items (인터넷 미디어의 '미국.이라크' 전쟁 보도 경향과 담론구조: <오마이뉴스>보도의 시간구조와 담론구조 분석을 중심으로)

  • Baek, Seon-Gi
    • Korean journal of communication and information
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    • v.33
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    • pp.115-167
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    • 2006
  • The purpose of this study was to investigate coverage patterns of the Korean internet news media on 'US-Iraq War' and its meaning and discourse structure. The internet news media was recently established and become a popular news media to compete with old news media in Korea. The author selected the 'Oh My News' as a representative internet news media for his analysis, and collected its news items from Mar. 20, 2003 to Dec. 17, 2003. on the basis of 4 different phases of the war. He analysed the whole of news items with various semiotic and discourse analytic methods, especially applying for Bell's concepts of time and discourse structure. As a result of this study, first of all, it was found that the 'Oh My News' tended to cover this war so different ways as the old news media did. It did not pay attention to the procedure of war, especially, battlefields, fighting between US and Iraq, damages and casualties. But, instead, it paid attention to many doubts about intention of US government and the President, Bush, dichotomous shift between pro-America and anti-America, rightness of dispatching Korean army into Iraq, etc. Secondly, it functioned as a kind of alternative media to speak up different voices comparing with those of old media. It tended to suggest different perspectives and opinions, while the old media tended to follow American perspectives and opinions. Thirdly, it became as a kind of new media setting agendas for this war in Korean society. It played a very important role for setting agendas for various issues related with this war. In conclusion, the internet news media has recently become a kind of new news media for suggesting alternative or different opinions, setting agendas, initiating discourses, etc., even though it still has may problems of becoming so called orthodox news media.

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An Analysis of Terrorism against Korea to Overseas and its Implications - Focusing on the companies advancing to overseas - (한국을 대상으로 한 국제테러리즘의 분석과 시사점 - 해외진출기업을 중심으로 -)

  • Chang, Suk-Heon;Lee, Dae-Sung
    • Korean Security Journal
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    • no.28
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    • pp.153-179
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    • 2011
  • Korea has been a victim of State supporting terrorism by North Korea even before international society realize the terrorism threats because of 9.11 in US. However, state supporting terrorism against South Korea by North Korea went along with East/West Cold War System by US and the Soviet Union. It is because socialism that Kim Il-sung who established a separate government in North Korea with the political, economic, social and military support of the Soviet Union selected as his political ideology justifies terrorism as the tool to complete the proletariat revolution. North Korea's state supporting terrorism is being operated systematically and efficiently by military of North Korea. It gives big worries to international society not only by performing terrorism against Korea but also by dispatching terrorists and exporting terrorism strategies to the third world countries. In this situation, terrorism against Korea has met a new transition point at 9${\cdot}$11 in US. As South Korea is confronting North Korea and the war has not ended but suspended, the alliance between US and Korea is more important than anything else. Because of this Korea decided to support the anti-terrorism wars against Afghanistan and Iraq of US and other western countries and send military force there. The preface of the anti-terrorism war has begun as such. On October 7, 2001, US and UK started to attack Afghanistan and Taleban government in Afghanistan was dethroned on December 7, 2001. US and western countries started a war against Iraq on March 20, 2003. On April 9, 2003 Baghdad, the capital of Iraq fell, and Saddam Hussein al-Majid al-Awja government was expelled. During the process, the terrorism threat against South Korea has expanded to Arab terrorists and terrorism organizations as well as North Korea. Consequently, although Korean government, scholars and working level public servants made discussions and tried to seek countermeasures, the damages are extending. Accordingly, terrorism against Korean companies in overseas after 9${\cdot}$11 were analyzed focusing on Nation, Region, Victimology, and Weapons used for the attacks. Especially, the trend of terrorism against the Korean companies in overseas was discussed by classifying them chronologically such as initiation and termination of anti-terrorism wars against Afghanistan and Iraq, and from the execution of Iraqi President, Saddam Hussein al-Majid al-Awja to December 2010. Through this, possible terrorism incidents after the execution of Osama bin Laden, the leader of Al-Qaeda, on May 2, 2011 were projected and proposals were made for the countermeasures.

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A Study on the concern and change of form and matter in medical conversation by writing (의학필담 형식과 내용의 상관성 및 변천에대한 연구 - '~ 록(錄)', '~ 의담(醫談)', '~ 필어(筆語)'를 중심으로 -)

  • Kim, Hyung-Tae
    • (The)Study of the Eastern Classic
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    • no.37
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    • pp.217-248
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    • 2009
  • 'Pil-dam-chang-su-jib'(collection of conversation by writing about poetry or sentences) which was remained in Japan through the dispatching of Tong-sin mission belong to the Joseon dynasty is a valuable historical records directly to verify sincere relationships with Korea and Japan in the past. At the center of the 'Pil-dam-chang-su-jib', a conversation of senators who was technocrat both countries at that time was not a little contained. Because they need to exchange information and opinions which they had been curious at an appointed hour, the most impending medical problems of that period had to be brought out in the senator's 'Pil-dam-chang-su-jib' and the value of material is high as much. If you examine the 'Pil-dam' records which was exchanged from senators to senators of both countries at that time, you can directly confirm the universality and difference of the medical science and medicine tradition of various East Asian countries. The purpose of a paper was in consolidation to a base of translation and investigation hereafter to consider the characters embodied in medical conversation in the first half of $18^{th}$ centuries. '~ Rok(錄)' can be an opportunity to organize the customs history through the studying an illness, medicines and a remedy. The necessity of the investigation about medical related conversation by writing is in this place. '~ Ui-dam(醫談)' is considering with the all factors above, the first half of 18th century's medical conversation materials are certificated remarkably valuable materials to the cultural history around the physician at that time. '~ Pil-ur(筆語)' is to use of questions and answers form gives presence and reality at the conversation by writing. So, conversation was let the readers to gain the feeling of movement. Also, the contents are substantially reflected the long history of Eastern medical and revealed medical science, treatment reality at that time. Not correspondent with normal collection of conversation by writing, the medical conversation by writing shows a special quality at rich material to confirm the technocrat's identity. The first half of $18^{th}$ century medical conversation by writing had been a foundation of the rational description system at the coming medical conversation to change the description system according to the envoy's coming situation.

Project of Improving Good Agriculture Practice and Income by Intergrated Agricultural Farming (미얀마 우수농산물 재배기술 전수사업)

  • Lee, Young-Cheul;Choi, Dong-Yong
    • Journal of Practical Agriculture & Fisheries Research
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    • v.16 no.1
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    • pp.193-206
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    • 2014
  • The objectives of the project are to increase farmers' income through GAP and to reduce the loss of agricultural produce, for which the Korean partner takes a role of transferring needed technologies to the project site. To accomplish the project plan, it is set to implement the project with six components: construction of buildings, installation of agricultural facilities, establishment of demonstration farms, dispatching experts, conducting training program in Korea and provision of equipments. The Project Management Committee and the Project Implementation Team are consisted of Korean experts and senior officials from Department of Agriculture, Myanmar that managed the project systematically to ensure the success of the project. The process of the project are; the ceremony of laying the foundation and commencing the construction of training center in April, 2012. The Ribbon Cutting Ceremony for the completion of GAP Training Center was successfully held under PMC (MOAI, GAPI/ARDC) arrangement in SAl, Naypyitaw on June 17, 2012. The Chairman of GAPI, Dr. Sang Mu Lee, Director General U Kyaw Win of DOA, officials and staff members from Korea and Myanmar, teachers and students from SAl attended the ceremony. The team carried out an inspection and fixing donors' plates on donated project machineries, agro-equipments, vehicles, computers and printer, furniture, tools and so forth. Demonstration farm for paddy rice, fruits and vegetables was laid out in April, 2012. Twenty nine Korean rice varieties and many Korean vegetable varieties were introduced into GAP Project farm to check the suitability of the varieties under Myanmar growing conditions. Paddy was cultivated three times in DAR and twice in SAl. In June 2012, vinyl houses were started to be constructed for raising seedlings and finished in December 2012. Fruit orchard for mango, longan and dragon fruit was established in June, 2012. Vegetables were grown until successful harvest and the harvested produce was used for panel testing and distribution in January 2013. Machineries for postharvest handling systems were imported in November 2012. Setting the washing line for vegetables were finished and the system as run for testing in June 2013. New water tanks, pine lines, pump house and electricity were set up in October 2013.

A Study on Baettaragi Performance in Northwestern Province of Korea (관서지방 배따라기 연행고(演行考))

  • Lim, Soojung
    • (The) Research of the performance art and culture
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    • no.23
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    • pp.105-158
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    • 2011
  • Due to the system of sending selected hyanggi(local entertaining woman) to the government office in Seoul after the abolition of the system of gyeonggi(entertaining woman in capital area) during the reign of King Injo(1595~1649), the kyobang-jeongjae(local dance performed for the provincial government office) had gotten into the court to be performed at the royal banquet as gungjung-jeongjae(court dance), one of which was seonyurak(dance of boating). It used to be performed for finale of the royal banquet in the late Joseon Dynasty and appeared in several uigwes(record for royal banquet) since its first appearance in the wonhaeng-eulmyo-jeongri-uigwe, documented in 1795, the 19th year of the reign of King Jeongjo. Considering that the yeoggi(female entertainer) responsible for the court dance, seonyurrak was the seonsanggi(selected entertaining woman from provinces) from the northwestern provincial villages such as Euiju, Ahnju, and Seongcheon etc., we can assume that the baettaragi, one of kyobang-jeongjaes whould have been getting into the court to become the seonyurrak as court dance. The baettaragi, kyobang-jeongjae of northwestern province that affected the development of the court dance, seonyurak was created as performance executed by entertaining women of kyobang(local supervisory office for entertaining women) on the basis of the fact that the envoy of Joseon dynasty to the Ming dynasty could not help but taking a sea route when Amaga Aisin Gurun had a grip on the northeastern area of China during the shift of power from Ming to Qing. There had been a lot of banquets for envoys in the northwestern province because of its geographical feature as gateway to trip to China and the baettaragi used to be performed by entertaining women belonged to local provincial office to consolate the sadness of separation with those who destined to depart to China and to hope for their safe return. The kyobang-jeongjae, baettaragi of northwestern province is recorded as performance with sorrowful song to put the pain of parting into work, according to many related documents. It puts together painted boats as props, the march of a couple of dancer dressed up as soldier with marching music called gochiak, the song and musical accompaniment before getting on boat, the dramatic expression of sailing, and the farewell song praying for safe return etc. It turns the situation of dispatching envoys for China by sea into performance with combination of music, song and dance. Created in this way, the kyobang-jeongjae, baettaragi had been performed at the various banquets for envoys departing for China and it affected the formation of court dance or gungjung-jeongjae called seonyurak through the activities of selected local entertaining women. It also exerted influence on other similar performance in provincial area because of the returning home of the selected local entertainers who finished their performance in Seoul and it had been performed with different variation at local banquet including locality in it.