• 한국비블리아학회지
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• 제34권4호
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• pp.77-99
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• 2023

본 연구의 목적은 다문화 이용자 밀집지역에 있는 도서관의 장서와 대출데이터를 정량적으로 분석하여 이용자들의 소장장서에 대한 장서활용도를 살펴보고 이를 토대로 다문화 도서관을 위한 정책적 시사점을 제시하는데 있다. 안산다문화작은도서관을 대상으로 2016년부터 2022년까지 장서·대출 이용 데이터를 분석하였다. 연도별, 언어별, 주제별로 소장도서수, 대출수, 비중, 장서회전율과 이용계수를 산출하여 장서이용도를 파악하였다. 개별도서별 누적대출수를 기준으로 누적 합계를 산출하여 대출 분포와 장서이용율 추이를 살펴보았다. 다문화 장서의 평가와 장서활용도를 기반으로 증거 기반의 장서개발 지침에 활용할 근거를 제공하고 다문화 도서관을 위한 정책을 제안하였다.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2007년도 추계학술대회 논문집
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• pp.1574-1585
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• 2007

In the more and more continues traffic difficulty which comes to be serious it is for solve, in order to like this used plan for new town light train automatic fare collection system, the city development which is balance and the passenger whom it uses, in consequence of the fact that recently believer instruction, the automatic fare collection system the reverse which is convenient is used in the scripture season which is embossed with means it introduces it operates and a manpower with the scientific service control which leads the electric computer anger of passenger service improvement and accounting and statistical business it reduces, the use is convenient and the possibility facility of operating efficiently in rational plan in order to be, description below for the service automation equipment where the efficiency improves it is. Service automation equipment uses a scripture season to be the first boundary gate of the passenger, there must be a place where it uses a service automation facility and in order to be convenient, it considers the moving area and a wait of the reverse station passenger moving area and the space where, must secure the automatic fare collection system which it follows in automation of facility and the service operation of the reverse station which is ticket sale, the collection of tickets back the passenger is convenient and in order it will be able to use, must do and must consider, must arrange the efficient characteristic of the maintenance civil official services.

• 한국정밀공학회지
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• 제14권1호
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• pp.84-89
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• 1997

Recentely, a compact and small size air-cleaning Electrostatic Precipitator(ESP) is needed to develop for air conditioning devices. From Deutsch formula for ESP efficiency, collection efficiency is affected not only the structure of collection section but also the charge rate of dust. In terms of collection area, the most useful type is a scroll type ESP. In this work, we investigated experimentally aptimum design factor of scroll type ESP by application of Taguchi method. And we developed the scroll type ESP by using optimal condition of control factor.

• Advances in Computational Design
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• 제5권3호
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• pp.261-276
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• 2020

The reasonable layout of vacuum cleaner can effectively improve the collection efficiency of iron filings generated in the process of steel production. Therefore, in this study, the CFD-DEM coupling model and two-fluid model are used to calculate the iron filings collection efficiency of vacuum cleaner with different inclination/cross-sectional area, pressure drop and inlet angle. The results are as follows: The CFD-DEM coupling method can truly reflect the motion mode of iron filings in pneumatic conveying. Considering the instability and the decline of the growth rate of iron filings collection efficiency caused by high pressure drop, the layout of 75° inclination is suggested, and the optimal pressure drop is 100Pa. The optimal simulation results based on two-fluid model show that when the inlet angle and pressure drop are in the range of 45°~65° and 70Pa~100Pa, larger mass flow rate of iron filings can be obtained. It is hoped that the simulation results can offer some suggestion to the layout of vacuum cleaner in the rolling mill.

• 한국환경과학회지
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• 제25권1호
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• pp.127-134
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• 2016

This study is conducted to get current state of data collection and utilization of the trees damaged by pine wilt disease, and to efficiently collect and utilize of the trees damaged by the pine wilt disease and abandoned fumigation-treated trees at forecasts. The method to control pine wilt disease damaged area is mostly fumigation treatment system, and there is no collection and utilization of damaged trees because of absence of efficient collection system, lack of collection cost, and absence of policy, etc. A survey is conducted that asked about the satisfaction degree for the trees damaged by pine wilt disease collection and use divided into 6 topics. It was positively recognized that the need and problem of the trees damaged by pine wilt disease, and results and satisfaction of forestry mechanization while it was mostly negatively recognized that the policy satisfaction for prevention and collection, satisfaction of collection and use, collection and forestry mechanization, and satisfaction of foundation equipment for forestry mechanization, etc. As a result of path analysis, it is necessary to promote a high-tech forestry mechanization to improve satisfaction level of results and satisfaction of forestry mechanization for the trees damaged by pine wilt disease collection and utilization, it is also need to make an effort in various ways for improve satisfaction level of satisfaction of collection and utilization.

• 방사선산업학회지
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• 제11권3호
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• pp.157-165
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• 2017

In this paper, we calculate the light photons collection efficiency of large-volume plastic scintillation detector mainly used for radiation portal monitor (RPM). A Monte Carlo light photon transport code, DETECT2000, were used to quantitatively evaluate light collection efficiency of plastic scintillation detector. DETECT2000 calculated the placement of light collection efficiency based on the energy spectrum. We calculated the light collection efficiency relative to the position of the energy spectrum that proportional to the placement of the source. The $850{\times}285{\times}65mm^3$ size of polyvinyl toluene (PVT) scintillator was used for measurements. Through DETECT2000 simulation, the light collection efficiency of $5{\times}5$ arrays were calculated and verification was performed by comparing with experimentally measured. And then, the corrected MCNP simulation by applying the light collection efficiency in $21{\times}13$ arrays was compared and analyzed. Comparing the Monte Carlo simulation with measured results, it shows an average difference of 10.1% in $5{\times}5$ arrays. Particularly, about twice of the difference was found in the edge of first column, which coupled with PMT. In whole $5{\times}5$ array, the overall ratio was the same except for the first column. And then comparing the energy spectra of the $21{\times}13$ array with and without the light collection efficiency, it shows a difference of 6.69% in Compton edge area. The DETECT2000 based light collection efficiency simulation showed well agreement with the point source experiment. And comparing with measured energy spectra, we could compare the differences according to whether or not the light collection efficiency was applied. As a results, it is possible to increase the accuracy and reliability of Monte Carlo simulation results by pre-calculating the light collection efficiency according to the PVT geometry by using the DETECT2000.

• 한국작물학회:학술대회논문집
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• 한국작물학회 2019년도 춘계학술대회
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• pp.166-166
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• 2019

• 보존과학회지
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• 제37권5호
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• pp.440-450
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• 2021

수장고 및 전시 공간의 종합적 유해생물 관리를 위하여 실시간 온습도 센서 및 모듈을 이용한 환경 데이터 수집, 실내 부유 진균류 농도 및 곤충 유입 자료의 데이터 시각화를 부여 정림사지 박물관 유물 공간을 대상으로 실시하였다. 실시간 온습도 모니터링 시스템은 30분 단위로 측정 데이터를 수집하였으며 연동 애플리케이션을 통해 측정 데이터를 실시간으로 확인 가능하도록 하였다. 또한 측정된 온습도 데이터가 미리 설정한 범위를 초과하였을 경우, 푸시 알림을 담당자의 단말기로 전송하여 현황 정보를 제공함으로써 상시적 관리 체계를 구축하였다. 이를 통해 8월 중 유물 권장 온도 범위를 초과한 상황의 즉각적인 인지 및 조치가 가능하였다. 수장고 내부 공간에 따른 시기별 부유진균류 농도 데이터를 국립문화재연구소에서 제시한 생물학적 유해환경요인 권고기준(안) 기준으로 범례화하여 시각화한 결과, 수장고 1층과 2층 유물 공간 모두 위험 기준인 80 C.F.U./m³ 이하의 부유 진균류 농도가 유지되는 것이 확인되었다. 또한 곤충 유입 조사 결과, 수장고 내부에는 곤충이 포획되지 않았으며, 전시공간의 경우, 딱정그리마, 알락귀뚜라미, 알락꼽등이 등의 곤충이 포획되었다. 이를 바탕으로 구역별 포획 곤충의 개체 밀도에 따른 시각화를 실시한 결과, 곤충의 주요 유입 경로가 외부 출입구 및 화장실 구역임을 확인할 수 있었다.

• Spatial Information Research
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• 제9권1호
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• pp.15-30
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• 2001

본 연구는 공공성을 지닌 편익 서비스로 인식되고 있는 쓰레기 수거 서비스를 보다 효율적으로 공급하기 위해서 쓰레기 수거권역을 설정하고 설정된 권역내에서 수거차량의 순회경로계획을 분석하는데 목적을 두었다. 본 연구에서는 합리적이고 보다 과학적인 쓰레기의 수거체계를 수립하기 위해 가장 기본적인 자료가 되는 쓰레기 배출지점별 배출량을 추정하고, 쓰레기 수집구역을 구축하였다. 이를 토대로 하여 지역분할방법을 이용하여 수거권역을 설정하였고, 쓰레기를 수거하는 차량의 순회결로를 효율적으로 계획할 수 있는 경로선정 방법도 도입하였다. GIS를 기반으로 하는 수거권역의 설정은 행정동별로 이루어지고 있는 수거업무를 보다 효율적으로 수행할 수 있는 것으로 분석되었다. 또한 경로선정방법을 도입할 경우 공차회송비용을 줄이면서 최소의 비용으로 경로계획의 수립이 가능함을 보여주었다. E따라서 쓰레기 수거서비스 체계를 구축하는데 있어서 GIS를 기반으로 하는 지역분할방법과 경로선정방법을 도입한다면 보다 신속하고 효율적으로 서비스를 제공하는데 필요한 정보를 제공할 수 있을 것이다.

• 한국동물학회지
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• 제10권2호
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• pp.18-22
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• 1967

The routine entomological investigations were carried out in the areas of Kaejeon-Myon, OkkuGun, Cholla Pukdo province in 1964 and Sinchang-Myon, Asan Gun, Chungchong Namdo province in 1965, for the better understanding of the behavior of the anpheline mosquitoes especially of the population density , resting , feedign, and breeding habits. The results are as follows : 1. During the investigation , three species of anopheline mosquitoes were recorded ; Anopheles sinensis Wiedmann 1825, A, sineroides Yamada 1935, and A. yatsushiroensis Miyazaki 1951. A . yatsushiroensis Myiyasaki 1951, so far only recorded in Japan, was recorded for the first time in Korea in 1964 ; the site was Kaejong Myon, Okku Gun, Cholla Pukdo province. 2. Anopheles mosquitoes begin to appear from the middle of April and disappear in October. The date of mosquitoes collected by resting place collection in cow shed are three weeks ahead to the night time cow biting collection. 3. Resting places of anopheline mosquitoes are mainly in cow shed and outdoors which provides high humidity and shadow. 4. The population density of a. sinensis sows a peak in late June and early July in cow shed and by cow biting collection respectively, and another small peak in late August and early September. 5, . the biting activity at night is throughout the night from dusk to dawn, sharply decreasing just before dawn. The peak period was different in each months, 2100-2200 hours in June, 2300-2400 in July , 0300-0400 in August , and 2300-2400 in September. 6. The minimum temperature required for the mosquito's biting activity is 15 $^{\circ}C$ and the optimum is between 24-$25^{\circ}C$ : over $25^{\circ}C$ the activity is decreased. 7.A , sinensis appeared to be zoophilic in Sinchang area but 13 times anthrophophilic in Kaejong area than the former. 8. the light attraction of a. sinensis is significantly low in middle June and early August. The parous rate of A. sinensis caught by cow biting collection appeared higher after midnight (2400-0300 hours) with no relation to the peak period of biting activity by month.