• 한국ITS학회:학술대회논문집
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• 한국ITS학회 2002년도 제1회 정기총회 및 학술대회
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• pp.157-160
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• 2002

• 한국철도학회:학술대회논문집
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• 한국철도학회 2006년도 춘계학술대회 논문집
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• pp.636-641
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• 2006

• 한국ITS학회 논문지
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• 제15권6호
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• pp.62-70
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• 2016

중앙버스전용차로 근측(Near-side)정류장의 경우 버스교통량이 많아지면 정류장 내에서 신호대기를 하는 차량이 발생하게 되고, 이로 인해 정차면에 진입하지 못하고 신호를 대기하는 차량이 발생하는 비효율이 발생하게 된다. 본 연구는 이러한 현상을 해소하기 위하여 근측버스정류장과 신호교차로의 적정 이격거리를 산정하는 방법을 제시하고자 한다. 기존의 포아송 모형에서 승하차시간을 승하차시간과 신호대기시간의 합으로 변형하여 정차면과 이격거리를 동시에 산정하도록 제시하였다. 또한 이격거리 증가에 따라 신호대기시간이 변화하는 현상을 미시시뮬레이션으로 모사하였다. 마지막으로 이격거리에 따라 변경되는 신호대기시간을 반영하기 위한 반복 알고리즘을 제시하여 적정 이격거리를 산정하도록 제시하였다. 제시된 알고리즘을 적용하여 교통량 수준에 따른 중앙버스전용차로 근측정류장의 적정 이격거리를 제시하였다.

• 한국도로학회논문집
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• 제18권6호
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• pp.69-76
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• 2016

OBJECTIVES : The objective of this study is to propose a capacity analysis methodology for riverside bike-exclusive roads. METHODS : Three steps were performed to develop a methodology to estimate bikeway capacity. First, we reviewed previous studies on the vehicle-road capacity analysis and proposed their applicability to bikeways. Second, two assumptions were made based on the traffic flow characteristics of bikeways: (1) the capacitated state in bikeways occur within a bicycle platoon, and (2) a bicycle platoon consists of more than three bicycles running in close proximity. In addition, it is assumed that the mean time headway of a bicycle platoon represents the characteristics of the platoon. The normality of the mean-time headway of a bicycle platoon calculated using the central limit theorem leads to the development of a method that estimates the riverside bikeway capacity using data collected from two different riverside bike-exclusive roads (Han-river and Anyangcheon). We used a location-fixed video camera to record videos of running bicycles and wrote a special-purpose software program to code the time-headway data from the videos. RESULTS : Time headways from 189 bicycle platoons were analyzed. The estimated mean-time headway of the capacitated bicycle flow is 1.01 s, from which the capacity of the bikeway is found to be 3578 vehicles/h. CONCLUSIONS : The proposed method that estimates bikeway capacity could be applicable to the analysis of short-range congested area rather than planning the number of lanes. In other words, it determines the sections that are temporarily highly congested and proposes appropriate strategies to mitigate the congestion.

• 한국콘텐츠학회논문지
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• 제20권6호
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• pp.640-652
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• 2020

본 연구는 사회복지 조직의 자원개발이 중요하게 부각되는 현 시점에서 장애인 거주시설의 자원개발 현황을 파악하여 자원개발 활성화에 필요한 지원방안을 제시하였다. 구체적으로 전국에 소재한 장애인 거주시설 255개소를 대상으로 자원개발 현황과 욕구에 관한 서베이 조사를 실시하였고, 자원개발의 필요성과 지원 방안에 대한 심층적인 의견을 듣고자 초점집단면접을 진행하였다. 조사 결과, 장애인 거주시설은 자원개발의 50% 이상을 개인 기부에 의존하고 있었으며, 전담인력 유무에 따라 자원개발 계획과 이행 성과에 차이가 발생하는 것으로 나타났다. 또한 지인 추천 등 직접적인 요청 중심의 자원개발 방식이 제한되어 있었으며, 전담인력 부재, 자원개발 관련 지식 및 기술 부족, 지역사회 내 시설에 대한 관심 부재 등의 어려움 겪고 있는 것으로 나타났다. 이를 기반으로 본 연구는 전담인력 배치, 다양한 자원개발 방식 도입, 투명성과 신뢰성을 기반으로 한 자원개발, 자원개발에 대한 단계적 전문교육 체계 마련 등의 발전방안을 제안하였다.

• 한국항만경제학회지
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• 제24권4호
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• pp.283-311
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• 2008

새만금 신항만은, 1996년 전국신항만 개발계획에 포함시켰고, 1998년 "새만금 신항만 기본 및 실시설계"까지 마친 후, 2008년 9월 10일에 발표한 광역경제권 사회간접자본(SOC)분야 선도 프로젝트에 새만금 신항만 개발이 선정 되었다. 이에 따라 새만금 신항을 차별화된 항만으로 특화개발하는 방안과 신규물동량을 추정하였다. 또한 새만금 신항과 배후지의 식품가공무역단지와 해외농업개발을 통해 확보된 식품원료와 연계된다면 시너가 효과 창출이 가능할 것이다. 새만금 신항을 식품전용항만으로 개발했을 국가전략상 식량안보를 해결할 수 있고, 동북아 식품생산 및 유통 허브로 자리 잡을 수 있을 것이며, 신선농산물의 보관 중계지로서 먹을거리 변화추세에 아주 적합한 항만개발이 될 것이다. 따라서 새만금 신항을 식품전용항만으로 개발하면 차별화된 경쟁력우위의 항만으로 발전할 수 있을 것이다.

• 한국문헌정보학회지
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• 제40권1호
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• pp.163-194
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• 2006

이 연구의 목적은 남북 저작물교류 활성화로 인해 제기되고 있는 남북한 저작물에 대한 저작권 보호문제를 도서관 등에서의 저작권의 제한 상황 하에서 북한저작물의 저작권을 보호함과 동시에 북한자료 이용 활성화 방안을 모색하기 위한 것이다. 이를 위해 북한 저작권법의 주요 내용과 도서관에서 자료이용에 관한 저작권 제한 관련 규정을 베른협약과 남북한의 저작권법 중심으로 고찰하였다. 현재까지의 남북한 저작권에 관한 연구가 남한에서의 북한저작물 출판 및 배포 유통문제에 따른 저작권 보호에 초점이 맞추어져 왔다. 그러나 이 연구는 북한자료를 연구 조사 목적으로 활용할 수 있도록 지원 창구 역할을 해 온 북한자료센터 등 국내 특수자료 취급기관에서 북한자료 이용 시 도서관 면책 규정에 따른 북한저작물 보호와 이용자의 원활한 정보이용을 위한 다양한 해결 방안을 제시하고 있다.

• 한국산업융합학회 논문집
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• 제14권2호
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• pp.45-52
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• 2011

Since the most exclusive machines of the modern industries which require the nano precision rates are evolved from the machine tools, the design of the stable machine tool structure is very critical. Exclusive machines for the modern industries such as semiconductor, solar cell and LED have surface machining processes which are similar to the face cutting and grinding of conventional machine tools. This study was initiated to stabilize a milling machine structure and further to help design those exclusive machines which have similar machining mechanisms. The vibrations inherent to the machine tool structures hurt the precision machining as well as damage the longevity of the structures. There have been numerous researches in order to suppress the vibrations of machine tool structures using the extra modules such as actuators and dampers. In this paper, the dynamic properties are analyzed to obtain the natural frequencies and mode shapes of a machine tool structure which reflect the main reasons of the biggest vibrations under the given operating conditions. And the feasibility of improving the stability of the structure without using any additional apparatus has been investigated with minor design changes. The result of the study shows that simple changes based on proper system identification can considerably improve the stability of the machine tool structure.

• Ocean and Polar Research
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• 제26권4호
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• pp.669-678
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• 2004

Coastal states are adopting maritime boundary delimitation as their primary maritime policy because maritime jurisdiction directly relates to vast economic interest. This becomes specially important and sensitive when complex maritime boundary issues are involved between neighboring coastal states. China has not actively carried out nor declared maritime boundary delimitation until recently with any country except Agreement between China and Viet Nam on the demarcation of the territorial water, the exclusive economic zones and the continental shelf of China and Vet Nam in the Gulf of Tonkin on 25 December 2000 (hereinafter, the Gulf of Tonkin Agreement). The principles that governs maritime boundary delimitation are to consider primarily an agreement between States concerned, however, if no agreement can be reached, all relevant circumstances are considered to achieve an equity between concerned States. Relevant circumstances are length of coastline, form of coastline, existence and position of island or islands, speciality of geology/topography, and factor of economy and deffnce. Factors which sinologists are considering in regard to continental shelf delimitation of the Yellow Sea are as follows; i) geographical factor, ii) geological factor, iii) topographical factor, iv) environment and ecological (factor, v) historic interest, and vi) social and economic interest. The 'Gulf of Tonkin Agreement' is completed by basically applying the principle of delimitation according to median line which seems that China has adopted the maritime boundary delimitation principle of 'half and half' which was the intention of chinese government. At the same time, China recognized Viet Nam's dominion and sovereign right over the partial exclusive economic zone and the continental shelf of Dao Bach Long Vi in Gulf of Tonkin. This case can be considered as an example of mutual concession or compromise in delimiting maritime boundary for states of concerned.

• Nutrition Research and Practice
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• 제4권3호
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• pp.222-228
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• 2010

Breastfeeding is an unequalled way of providing ideal food for the infants. The benefits of breastfeeding practices to infants and mothers are well documented. However, information on breastfeeding practices and its effect on body mass index (BMI) of mothers are scarce, particularly in Ekiti State of Nigeria. Therefore, the present study is designed to assess breastfeeding practices and its association with BMI of mothers. A descriptive and cross-sectional study was conducted among breastfeeding mothers that attended postnatal clinic of the state specialist hospitals and maternity centers in the study location. The specialist hospital and two-third of the nine maternity centers were purposively selected because of their health facilities and personnel. The mother-child pairs (200 respondents) were randomly selected from the study locations. Information on demographic characteristic, socio-economic parameters, nutritional knowledge of breastfeeding and dietary intakes of mothers were collected using questionnaires. BMI of mothers was determined as described by World Health Organization. Age distribution of mothers was between 25-34 years; and almost half of respondents had good educational background and were engaged in different occupations. The respondent monthly income ranged between = N = 3500 - 26000 ($26.92 - $200); and their dietary intakes varied between starchy and protein-based food. The result also showed that the respondent consumed enough nutrients to meet up the recommended daily allowance for protein, carbohydrate, fat, zinc, magnesium, sodium and phosphorous requirements. The BMI classifications showed that over three-fifth of respondents were normal, while the remaining were underweight (6%) and overweight/obese (26.5%). Also, large proportion of respondents engaged in exclusive breastfeeding and with good knowledge of breastfeeding practices. Statistically, exclusive breastfeeding practices had no correlation between the BMI and frequency of breastfeeding. The study, therefore, concluded that mothers had good knowledge of breastfeeding practice; and that there was no association between breastfeeding practices and BMI.