• 제목/요약/키워드: Manpower distribution

검색결과 128건 처리시간 0.026초

운항 해역별 자율운항선박 원격운항 상황 발생 확률 추산 시뮬레이션 모델 (Autonomous Ship's Remote Operation Situation Occurrence Probability Estimation Model based on Navigation Areas)

  • 황태웅;황태민;이다인;박혜인;윤익현
    • 해양환경안전학회지
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    • 제29권7호
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    • pp.910-914
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    • 2023
  • 4차 산업혁명의 도래로 인한 기술혁신은 자율운항선박을 중심으로 해상 운송분야까지 활발한 발전을 불러왔다. 특히, 현재의 선원이 직접 운항하는 방식인 유인선박 사이에서 운항하게 될 자율운항선박은 자율도에 따라 원격제어를 통해 운항을 수행하며, 육상에서 이를 제어할 원격운항자에 대한 관심 또한 늘어나고 있다. 하지만 아직 원격운항자가 개입이 필요한 상황이 동시에 발생하는 등을 고려한 원격운항자 최소 인력 요구사항에 대한 연구는 부족한 상황이다. 본 연구는 특정 해역 구간의 누적된 항적데이터를 활용하여 선박간에 발생할 수 있는 조우상황에서 원격운항자의 개입이 필요한 상황을 정의하고, 해당 구간을 특정 규모의 자율운항선박 선대로 운항하였을 때, 원격운항자의 개입이 동시에 필요한 상황이 얼마나 발생하는지를 시뮬레이션을 통해 확인하였다. 연구의 결과는 향후 실제 자율운항선박 선대를 운행할 원격운항센터의 원격운항자의 적정인력 배치 등의 계획 또는 정책 수립에 활용될 기초 자료로 활용될 것으로 기대한다.

평균 관객 수 10분위를 활용한 감독, 제작자, 배우 흥행성과 분석 (Performance Analysis of Directors, Producers, Main Actors in Korean Movie Industry using Deciles Distribution (2004-2017))

  • 김정호;김재성
    • 한국콘텐츠학회논문지
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    • 제18권10호
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    • pp.78-98
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    • 2018
  • 2004년~2017년 8월까지 국내에 개봉된, 다양성 영화를 제외한 순수 국산 상업 극영화 855편만을 대상으로 하여 이들 영화의 감독, 제작자, 주연배우, 흥행성적을 조사하여 각각의 변수들에 대한 10분위 분석을 시행하였다. 다양성을 제외한 극영화 855편을 만드는 데에는, 감독은 509명, 제작자는 696명, 주연배우는 785여 명이 참여하였다. 프로야구 등 스포츠에는 많은 통계적 분석이 활용되고 있다. 승률, 점유율, 타율, 출루율, 도루성공률, 장타율, 삼진, 비율, 볼넷 비율, 홈런 비율 등이 스포츠 경기 결과를 예측하고, 프로선수들의 평가지표로 다뤄지고, 선수들의 연봉 협상의 참고자료가 되고 있다. 스포츠 경기처럼 우연이 많이 존재하는 영화 흥행에서도 영화의 퀄리티를 결정짓는, 창의력이 있어야 하는 인력들 즉 제작자, 감독, 주연배우 등의 평가에 10분위를 활용하여, 이들의 성과를 예측하거나 공헌도를 평가하는 데에 참고자료가 될 수는 없는지를 탐색하고자 한다. 본 연구에서는 대본 즉 시나리오에 대해서는 제작자, 배우, 감독이 선택하는 안목과 경륜을 통한 간접평가만을 담고 있다. 향후 시나리오 내러티브 분석의 정량화, 창작 인력의 성장과 쇠퇴를 볼 수 있는 시계열 분석, 창작 인력 간의 상호작용을 보는 네트워크 분석이 요구된다.

의과대학 졸업 10년 후 활동의사의 출신대학별 근무지역과 지역별 출신대학 분포 (Distribution of active physicians and their working areas after 10 years of graduation)

  • 유승흠;손태용;오현주
    • Journal of Preventive Medicine and Public Health
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    • 제29권3호
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    • pp.429-437
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    • 1996
  • The geographical distribution of active physicians who graduated from medical schools before 1985 were studied. Those who had emigrated, hold non-medical jobs, are in the military service, or work as public health physicians and resident staff were excluded from the study. A total of 27,728 physicians were analyzed. Our studies have shown a relationship between the location of the medical schools from the which the physicians have graduated and the geographical regions in which they practice. A statistically significant number of physicians are working near the medical colleges from which they have graduated. That is, those who had graduated from medical schools located in the southern area of the country are presently working in the same region. This relationship was shown to be especially significant for older physicians and female doctors, who work around the area of the medical colleges from which they graduated.

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Power Distribution Network Modeling using Block-based Approach

  • Chew, Li Wern
    • 마이크로전자및패키징학회지
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    • 제20권4호
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    • pp.75-79
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    • 2013
  • A power distribution network (PDN) is a network that provides connection between the voltage source supply and the power/ground terminals of a microprocessor chip. It consists of a voltage regulator module, a printed circuit board, a package substrate, a microprocessor chip as well as decoupling capacitors. For power integrity analysis, the board and package layouts have to be transformed into an electrical network of resistor, inductor and capacitor components which may be expressed using the S-parameters models. This modeling process generally takes from several hours up to a few days for a complete board or package layout. When the board and package layouts change, they need to be re-extracted and the S-parameters models also need to be re-generated for power integrity assessment. This not only consumes a lot of resources such as time and manpower, the task of PDN modeling is also tedious and mundane. In this paper, a block-based PDN modeling is proposed. Here, the board or package layout is partitioned into sub-blocks and each of them is modeled independently. In the event of a change in power rails routing, only the affected sub-blocks will be reextracted and re-modeled. Simulation results show that the proposed block-based PDN modeling not only can save at least 75% of processing time but it can, at the same time, keep the modeling accuracy on par with the traditional PDN modeling methodology.

양호겸직교사의 배치근거 및 분포양상 (A study on the distribution basis and aspect of teachers holding additional school health)

  • 이정임
    • 한국학교보건학회지
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    • 제2권1호
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    • pp.58-90
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    • 1989
  • This study was attempted to contribute to the development of school health by providing the basic data about the distribution basis and distribution aspect of teachers holding additional school health that are in charge of school health business in parimary schools, middle schools and high schools without any nurse-teacher. This study analyzed literatures about the history, related laws, organization and professional manpower of school health. The emphasis was set on the distribution basis of theachers holding additional school health. The results of this study are as following: 1. The school health of the world dates to the late 18th century in Europe where was free supplying with food for poor children. The school health of Korea orginated from smallpox vaccination which was executed with appearance of modern schools in the late 19th century. 2. The related laws of school health began as a part of Education Law with was constituted in 1949. By the School Health Law constituted in 1967 and the enforcement ordinance of School Health made firm the legal basis of school health. 3. The administrative organs of school health are the Ministry of Education in center and each Board of Education in cities and provinces. For the first time in 1979, the department of school health was established in the organization of the Ministry of Education. And at about the same time of establishment of the department of school health, health section was established in the department of social physical-training in locality. 4. In the manpower of school health which was presented in the related statute of school health, there are the ward chief of education, the superintendent of educational affair, of cities and districts, the mayors, the governors of provinces, the school managers, the principals, the school doctors, the school pharmacists, and the nurse-teachers, including teachers holding additional school health as the practical manpower of school health. 5. In order to get some information on distribution aspect of teachers additional school health, this study made up a questionnaire from August 3 to August 11, 1988. The subjects of this study were 212 leachers who took part in the yearly training for teachers holding additional school health from Kyunggi province, Chungbuk province and Jeonbuk province. The results of the questionnaire are as following: 1. The distribution percentages of teachers holding additional school health according to each Board of Education wich schools are subject to, are as following:70.1% (Kyunggi), 76.5% (Chungbuk), and 81.4% (Jeonbuk). There was a significant difference. The distribution percentages of teachers holding additional school health according to the school levels of 3 provinces are as following: 74.1% (Primary schools), 77.8% (Middle schools), 76.7% (High schools). There were little significant differences. 2. The distribution according to the general characteristics of the subject schools: There were 64.2 percent of primary schools and 35.8 percent of middle schools among 212 schools. 91. 5 percent of schools were located in districts. Public schools formed 55.7% and then national schools were higher in percentage than private schools. 58.5 percent of schools had 1-9 classes, 64.6 percent of schools had 101-500 students, and 90 percents of schools had 1-20 teachers. In considering student sex, the coed school showed the high distribution percentage (Primary schools : 100%, Middle schools: 81.6%). 3. The distribution according to the characteristics of teachers holding additional school health: 93.3 percent of teachers were female, and more than 60 percent of teachers were 20-29 years old. As the age got higher, the percentage became lower. There were little significant differences by marital status. In considering their educational status, 86.8 percent of teachers in primary schools were from teacher's colleges, and 64.5 percent of teachers in middle schools were from education colleges. In considering teaching career, 46.7 percent of teachers had teaching career of less than 2 years. 73.6 percent of teachers had held additional school health for less than one year. More than 80 percent of teachers had participated in the training one time or twice. More than 70 percent of teachers had 1-2 additional jobs except for the school health business. The motivation to hold additional school health is most caused by mandatory order, which accounts for more than 80.0 percent. In considering interesting degree concerning school health, lukewarm answer is the highest of 62.7 percent, followed by affirmative answer of 23.6 percent. In considering their contentment degree respecting additional school health job, "discontent or very discontent"is the highest of 47.6 percent. As a descontent reason of additional school health job, overwork is the highest factor of 37.9 percent. Among addiitional school health job, the most difficult affair is nursing service to be 34.0 percent, followed by health education of 31.6 percent. It testify the need of professional. The source of knowledge about school health has been acquired from masscommunication or private health experience, which account for as much as 56.1 percent. It shows seriousness of lack of professionalism. With regard to neccessity of school health experts, 95.8 percent represents absolute need. With above consideration of study results, I propose as follows : 1. I propose that the authorities concerned unify and improve statute respecting current school health which has not been steadfastly supporting school health business by ambiguity of expression and dualization. 2. I propose that the authorities concerned give the school manager, school staffs and parents of students educational chance with which they can acknowledge the importance of school health and in which they can participate as well as set up alternative policy plan to be albe to vitalize school health committee. 3. I propose that administrative organization practicable to taking totally charge of school health business is established within the Ministry of Education. 4. I propose that the authorities concerned back up and cooperate in an attempt by make school health better and desirable toward development by way of appointing qualitied health teachers on the basis of legally regular teacher staffs.

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SENTINEL-2 위성영상을 이용한 조림 특성 조사: 세미양오름를 통한 사례 연구 (Characterization of Tree Composition using Images from SENTINEL-2: A Case Study with Semiyang Oreum)

  • 정용석;윤성욱;허성;김윤석;안진현;한경덕
    • 한국환경과학회지
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    • 제31권9호
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    • pp.735-741
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    • 2022
  • Global warming affects forests and their ecology. Diversity in the forest is a buffer that reduces the damage due to global warming. Mixed forests are ecologically more valuable as versatile habitats and are effective in preventing landslides. In Korea, most forests were created by simple afforestation with trees of evergreen species. Typically, evergreen trees are shallow-rooted, and deciduous trees are deep-rooted. Mixed forest tree roots grip the soil effectively, which reduces the occurrence of landslides. Therefore, improving the distribution of tree types is essential to reduce damage due to global warming. For this improvement, the investigation of tree types of the forest is needed. However, determining the tree type distribution of forests that are spread over wide areas is labor-intensive and time-consuming. This study suggests effective methods for determining the distribution of tree types in a forest that is spread across a relatively wide area. Using normalized difference vegetation index and RGB images from unmanned aerial vehicles, each evergreen and deciduous tree, and grassland area can be distinguished. The distinguished image determines the distribution of tree type. This method is effective compared to directly determining the tree type distribution in the forest by the use of manpower. The data from these methods could be applied to plan a mixed forest or to prepare for future damage due to global warming.

테일러스 역의 방향성 및 형태 분포에 대한 연구 - 강원도 정선군 북평읍 숙암리 지내 사면을 중심으로 - (A study on Orientation and Morphology of clasts in Rockfall Talus in the Sukam area, Bukpyoung-eup, Gangwon-do, South Korea)

  • 김승현;구호본;백용
    • 한국지반공학회:학술대회논문집
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    • 한국지반공학회 2003년도 봄 학술발표회 논문집
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    • pp.469-474
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    • 2003
  • Talus topography is that rock clasts that is weathered is accumulated dropping in steep slope to action of gravity. Rock fall talus is formed by the accumulation of rock debris falling as individual particles from a cliff. If the collapse is produced in talus slope, it will be possible the loss of manpower and country. Despite correct access about talus is required, domestic research was scientific access about talus short. The aim of the present study is to review and compare fabric data derived from rock fall talus about orientation, distribution and morphology in Sukam area. These deposits tend to have approximately equal amounts of clasts oriented parallel and perpendicular to the dip direction of the slope. And, platy-shaped clasts dominate the proximal and intermediate parts of the talus, whereas blocky-shaped clasts is more common in the distal part.

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Study on Flow Analysis of Three-Dimensional Screw Propeller With Respect to Rotational Speed Variable

  • Moon, Byung-Young;Sun, Min-Young;Lee, Ki-Yeol
    • 한국해양공학회지
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    • 제28권6호
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    • pp.500-507
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    • 2014
  • This study aimed at conducting a flow analysis of the pressure distribution, discharge flow rate, and consequent thrust force according to the rotational speed of a three-dimensional screw propeller, and then investigating the effect of the rotational speed on the characteristics of the screw propeller by varying the relevant speed (3200, 2400, 1600, 800 rpm). In particular, the computational domain was considered by the analysis in the blades and outlet chamber, using boundary conditions. The difference between the minimum and maximum pressures was 5.5 MPa under the given conditions. The discharge flow rate at this pressure difference was on the level of 1956.67 kg/s, as a thrust force of 47083.7 T(N) was obtained. This study showed that the discharge flow rate linearly increased with the rotational speed, proportional to the RPM, while the thrust force was gradually and steadily increased with the relevant speed. In addition, it was proved that the occurrence of cavitation under the given conditions was closely related to the decrease in the durability of the screw propeller because the thrust force depends on the speed.

실시간 해상교통정보 분석모듈 개발 (Development of Real Time Analysis Module for Marine Traffic Information)

  • 이근실;문성배;전승환
    • 한국항해항만학회:학술대회논문집
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    • 한국항해항만학회 2004년도 춘계학술대회 논문집
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    • pp.141-144
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    • 2004
  • 선박의 안전한 입출항을 도모하고 해양사고를 방지하기 위한 항로표지는 연안수역에서의 해상교통류 조사를 통하여 설치 및 관리되어왔다. 지금까지 이러한 조사는 포터블 소형 레이더를 이용한 목시관측과 현장방문 및 설문조사 등을 통한 후처리방식에 의해 수행되어 왔기 때문에, 많은 인력과 경제적 비용이 소요되었다. 본 연구에서는 레이더영상을 PC카메라를 동하여 획득 개인용 컴퓨터에 저장하고, 아울러 관측대상 선박에 관한 정보를 사용자가 입력함으로서 관측선박의 항적 등의 정보가 DB화되어, 실시간으로 통과척수, 속력분포, 밀도분포 등의 해상교통류 분석 통을 처리할 수 있는 모듈을 개발하였다.

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지역별 치위생(학)과 학생 및 활동 치과위생사 분포의 추세 분석 (Analysis of distribution trend among students of dental hygiene departments and active hygienists by region)

  • 김영석;정윤숙;김은경
    • 한국치위생학회지
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    • 제23권4호
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    • pp.235-243
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    • 2023
  • Objectives: This study compared the number of graduates in each region for the past 6 years and the number of dental hygienists working in dental clinics by region to evaluate the trend of dental hygienists moving to work areas after graduation. Methods: Health care big data open system_medical manpower statistics, resident population and household status data by year, and education statistics service were used to calculate the number of dentists and dental hygienists, admission status by region, number of dental hygienists per 100,000 population, number of dental hygienists per number of dentists, and distribution of dental hygienists by region. Results: Although the number of active dental hygienists increased in the metropolitan area, the ratio of dental hygienists to dentists did not improve significantly. In addition, the number of students enrolled in provincial universities decreased, and there were fewer active dental hygienists than graduates in provincial areas. Conclusions: Although the number of active dental hygienists increased due to increase in the number of dental hygiene departments, it was found that rural areas did not have a significant impact on the availability of dental hygienists as the graduates moved to the metropolitan area.