• 제목/요약/키워드: recording period

검색결과 244건 처리시간 0.029초

방범용 CCTV의 검거효과에 관한 연구 (A Study on the arrest effect of CCTV for crime prevention)

  • 박호정
    • 융합보안논문지
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    • 제14권6_2호
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    • pp.25-33
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    • 2014
  • CCTV는 인적이 드문 장소에서 거리의 눈으로 작용하여 추후 증거로 활용될 수 있으므로 범죄검거측면에서도 효율적으로 작용할 수 있는 도구라고 평가할 수 있다. 대다수 범죄가 과학적인 방법을 사용하여 지능적으로 은밀하게 이뤄지며, 범행이 매우 흉포한 경우가 많아지고 있다. 점점 지능화 은밀화되는 범죄양상에 비추어 범죄현장의 녹화장면을 포착하는 CCTV의 특성상 증거자료 획득 및 범인의 발견 체포가 용이하다는 장점으로 그 필요성이 점점 커지고 있다. 그러나 CCTV중 화질의 사양이 낮거나 야간녹화가 어려운 경우가 많아 더 높은 화질로 개선이 필요하고 야간녹화가 가능하여야 범죄에 대한 단서나 증거로서 유용하게 활용할 수 있다. 또한 방범용 CCTV의 통합 관제시스템 구축을 통하여 용이하게 증거를 획득할 수가 있고 보존기간을 연장하여야 CCTV가 증거자료로서 효력을 발휘할 수가 있다고 본다.

남강댐 유역의 네 가지 하천유량자료 확장방법 비교 및 평가 (Evaluation and Comparison of Four Streamflow Record Extension Techniques for Namgang Dam Basin)

  • 김경훈;정강영;윤종수;천세억
    • 한국물환경학회지
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    • 제30권1호
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    • pp.60-67
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    • 2014
  • In this study, four methods for calculation of continuous daily flow was suggested using short-term or partial recording station of streamflow including missing data. Using these methods, standard flows at the outlet of unit/small basins for the management of total maximum daily loads (TMDLs) in Namgang dam basin were estimated from full-period flow duration curve (FDC). Four methods of extension are described, and their properties are explored. The methods are regression (REG), regression plus noise (RPN), and maintenance of variance extension types 1 and 2 (MOVE.1, MOVE.2). In these methods, the continuous daily flow was calculated using extension equation based on correlation analysis, after conducting the correlation analysis between historic record of streamflow and long-term recording station (a base station). Finally the best optimal method was selected as the MOVE.2, and the standard flows in the abundant, ordinary, low and drought flow estimated from FDC was evaluated using MOVE.2 in unit/small basins.

Effects of scaling and root planing with or without a local drug delivery system on the gingival crevicular fluid leptin level in chronic periodontitis patients: a clinico-biochemical study

  • Meharwade, Vinayak Venkoosa;Gayathri, Gunjiganur Vemanaradhya;Mehta, Dhoom Singh
    • Journal of Periodontal and Implant Science
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    • 제44권3호
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    • pp.118-125
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    • 2014
  • Purpose: The present split mouth study evaluates the effect of nonsurgical periodontal treatment on the gingival crevicular fluid (GCF) leptin level in chronic periodontitis. Methods: Ninety sites from 30 nonobese chronic periodontitis patients were selected and divided as follows: group I, 30 healthy sites receiving no treatment; group II, 30 periodontitis sites receiving scaling and root planing (SRP); and group III, 30 periodontitis sites receiving SRP with tetracycline local drug delivery. At baseline, after GCF sampling and clinical parameter recording, the assigned treatment was performed for the study groups. During recall visits, GCF sampling followed by clinical parameter recording was done for groups II and III. Results: Reductions in the probing depth and the clinical attachment level (CAL) were highly significant at different time intervals (except between day 0 and 45) in both groups II and III. Upon comparison, group III showed significant gain in CAL between day 0 and 15 and between day 0 and 45. After treatment, the reduction in the GCF leptin level was more significant in group III than in group II at day 15 but re-elevated almost to the pretreatment levels at day 45. Conclusions: Nonsurgical periodontal therapies were not effective in maintaining stable reduction in the GCF leptin level during the study period.

Future Directions of Pharmacovigilance Studies Using Electronic Medical Recording and Human Genetic Databases

  • Choi, Young Hee;Han, Chang Yeob;Kim, Kwi Suk;Kim, Sang Geon
    • Toxicological Research
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    • 제35권4호
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    • pp.319-330
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    • 2019
  • Adverse drug reactions (ADRs) constitute key factors in determining successful medication therapy in clinical situations. Integrative analysis of electronic medical record (EMR) data and use of proper analytical tools are requisite to conduct retrospective surveillance of clinical decisions on medications. Thus, we suggest that electronic medical recording and human genetic databases are considered together in future directions of pharmacovigilance. We analyzed EMR-based ADR studies indexed on PubMed during the period from 2005 to 2017 and retrospectively acquired 1161 (29.6%) articles describing drug-induced adverse reactions (e.g., liver, kidney, nervous system, immune system, and inflammatory responses). Of them, only 102 (8.79%) articles contained useful information to detect or predict ADRs in the context of clinical medication alerts. Since insufficiency of EMR datasets and their improper analyses may provide false warnings on clinical decision, efforts should be made to overcome possible problems on data-mining, analysis, statistics, and standardization. Thus, we address the characteristics and limitations on retrospective EMR database studies in hospital settings. Since gene expression and genetic variations among individuals impact ADRs, pharmacokinetics, and pharmacodynamics, appropriate paths for pharmacovigilance may be optimized using suitable databases available in public domain (e.g., genome-wide association studies (GWAS), non-coding RNAs, microRNAs, proteomics, and genetic variations), novel targets, and biomarkers. These efforts with new validated biomarker analyses would be of help to repurpose clinical and translational research infrastructure and ultimately future personalized therapy considering ADRs.

미계측 결측 강수자료 보완 방법의 비교 (A Comparison of the Methods for Estimating the Missing Precipitation Values Ungauged)

  • 유주환;최용준;정관수
    • 한국수자원학회:학술대회논문집
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    • 한국수자원학회 2009년도 학술발표회 초록집
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    • pp.1427-1430
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    • 2009
  • The amount and the continuity of the precipitation data used in a hydrological analysis may exert a big influence on the reliability of the analysis. It is a fundamental process to estimate the missing data caused by such as a breakdown of the rainfall recording machine or to expand a short period of rainfall data. In this study the eight methods widely used as methods for estimating are compared. The data used in this research is the annual precipitation amount during 17 years at the Cheolwon station including an ungauged period of 15 years and its five surrounding stations. By use of this certified method the ungauged precipitation values at the Cheolweon station is estimated and the areal average of annual precipitation for 32 years at the Han River basin is calculated.

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자가정렬형 나노구조 Co-22%Cr합금 박막의 기판온도에 따른 미세 도메인 구호 (Magnetic Domain Structures with Substrate Temperatures in Co-22%Cr Alloy Thin Films)

  • 송오성
    • 한국자기학회지
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    • 제11권5호
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    • pp.184-188
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    • 2001
  • DC-스퍼터를 이용하여 기판온도를 실온과 20$0^{\circ}C$로 변화시켜 , 균일한 내부구조를 갖는 구조와 결정립내부에 미세한 자가정렬나노구조(SONS)를 갖는 Co-22%Cr 합금 박막을 각각 제조하고 이들의 미세구조와 도메인구조를 투과전자현미경(TEM)과 자기력현미경(MFM)을 이용하여 확인하였다. Co가 먼저 부식되도록 조치하고 관찰한 투과전자현미경 결과, 실온에서 제작된 박막의 경우에는 결정립 내부가 균일한 조성을 보인 반면, 기판온도가 20$0^{\circ}C$인 Co-22%Cr합금 박막은 결정립 내부에 SONS를 형성하여 판상의 미세 Co-과잉상을 가지는 특이한 미세구조를 가지는 것을 확인하였다. 자기력현미경에 의해 확인된 결과, SONS가 없는 시편(기판온도를 실온으로 유지한 경우)은 주기 5000 정도의 미로형 도메인(domains)이 생겼다. 미로형 도메인은 결정간의 교환에너지가 큰 경우 발생하는 구조로서 고밀도 자기기록이 불리할 것이 예상되었다. 이와 비교해서 SONS가 생성된 (기판온도를 20$0^{\circ}C$로 유지한 경우)시편은 주기 500 정도의 매우 미세한 구형 도메인을 보였다. 미세구형 도메인은 각 도메인간의 교환에너지가 작아 열적 변화에도 데이터가 안정하므로 고밀도 기록에 유리하다고 예상되었다.

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형제그룹 감각통합치료가 전반적 발달장애 아동의 사회적 상호작용에 미치는 효과 (Effect of the Brotherhood Group Sensory Integration Intervention to Social Interaction of the Children With Pervasive Developmental Disorders)

  • 박지훈;김수경
    • 대한감각통합치료학회지
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    • 제10권1호
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    • pp.21-31
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    • 2012
  • 목적 : 본 연구는 형제그룹 감각통합치료가 전반적 발달장애 아동의 사회적 상호작용에 미치는 효과에 대해서 알아보고자 한다. 연구방법 : 전반적 발달장애 진단을 받은 만 7~8세 아동 2명을 대상으로 2011년 7월부터 9월까지 총 8주간 형제그룹 감각통합치료를 실시하였다. 개별실험연구방법(single subject research design) 중 A-B-A' 설계를 사용하였으며, 기초선 A 3회기, 중재기 B 16회기, 기초선 A' 3회기로 총 22회기를 적용하였다. 사회적 상호작용의 질은 기초선 A와 A'기간에 ESI(Evaluation Social Interaction)를 통하여 측정하였다. 사회적 상호작용의 빈도는 기초선 기간에는 중재가 없는 상태에서 측정하였으며, 중재기간에는 매 중재 후 10분간의 자유놀이를 비디오로 촬영하여 등간기록법(interval recording)을 통해 측정하였다. 결과 : 대상 아동 모두에게서 중재 후 사회적 상호작용의 질은 통계적으로 유의한 향상을 보였다. 또한 매 회기 중재 후 실시한 자유놀이에서 대상 아동 모두 기초선 A의 평균과 2표준편차 밴드 이상인 값들이 두 개 이상 연속으로 나타나 사회적 상호작용의 빈도에서도 통계적으로 유의한 변화가 나타났다. 결론 : 형제그룹 감각통합치료가 전반적 발달장애 아동의 사회적 상호작용에 긍정적인 효과가 있음을 확인하였다. 따라서 임상에서 전반적 발달장애 아동에게 사회적 상호작용 향상을 위한 치료방법으로써 형제그룹 감각통합치료를 효과적으로 적용할 수 있을 것이다.

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고려말에서 조선중기까지의 구결자료에 관한 서지학적 연구 (A bibliographical study of the 'kukyeul system' in Korean language from Koryo to Chosun dynasty)

  • 남권희
    • 한국도서관정보학회지
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    • 제27권
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    • pp.485-572
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    • 1997
  • The purpose of this study is to investigate the textual and physical bibliography of these books that were printed from Koryo to Chosun Dynasty and written by the Kukyul system. This study is concerned with the Kukyul written in the transformed Chinese characters which representing their sino-Korean sound values only. The Kukyul is the Korean function word inserted to a written Chinese sentence for an easier understanding of the meaning by the Koreans. Until the present, most of these studies on the Kukyul are mainly concerned with the Korean linguistic characters. But this mentions to present the basic bibliographical information in order to presume the written period of the Kukyul system. 2The analysis of each book is made in the respect of: 1) historical aspect of the book 2) physical form and publishing date 3) transcription period of the Kukyul 4) the category of presenting Kukyul 5) historical change of transcribing Kukyul system The results of the study are as follows : First, the Kukyul system was divided into Sokdok and Sundok Kukyul according to the translation and recording format. Second, the Sokdok Kukyul is a kind of writing system for translated Chinese into Korean. Third, the Sundok Kukyul was frequently used Buddhist publications from later Koryo Dynasty to Middle Chosun period. Fourth, through the analysis of physical bibliography for that books, we rearrange the chronological oder of Sokdok Kukyul system as Hwaum-kyung, Hwaum-kyungSo, Kumkwngmyu ngkyung, Kuyeukinwang-kyung, Yukasajiron. Fifth, the characters of Sundok Kukyul systems were gradually decreased from eighty numbers to fifty numbers. This change is caused by the unification trends of sound value in morphological aspect.

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개화기(開化期) 서울에서 양식적 건축 요소를 차용한 절충적 한옥(韓屋)의 입면에 관한 연구 (A Study of Hybrid Characteristics in Architectural Elevations Seoul, between 1876 and 1905)

  • 김정인
    • 한국주거학회논문집
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    • 제26권3호
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    • pp.11-24
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    • 2015
  • There have not been many debates on the subject of Korean architecture during the transformative period of Gae Wha Gi (開化期: Enlightenment Period of Korea), when Western-style buildings first appeared in Seoul. This study begins by finding and recording those buildings in Seoul that show the gradual adoption and appropriation of Western architectural elements at the turn of the 20th century. By exploring the confluence of two different architectural styles, this paper attempts to look carefully at the hybrid conditions that resulted from encounters between the Koreans and the Westerners in the late 19th and early 20th century. Beginning with discovering the first products of the Western architectural influence in Seoul, this study explores the uneasy co-existence between the traditional Korean architectural style, and the Western architectural style. This co-existence ultimately bred new building techniques, and interior layouts; the appearance of these hybrid buildings illustrate the gradual transition from the traditional way, in which users modified, combined and appropriated various elements from both styles. Analyzing historical documents and photos, this study tries to capture a detailed image of the period when the influence of the Western architecture had an unavoidable impact and brought change to the traditional architecture of Korea.

사육기간에 따른 오리사 내 오리 생산성 분포도 조사 (Investigation of Duck Production Distribution in Duck Housing As a Function of Breeding Period)

  • 최인학
    • 한국환경과학회지
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    • 제30권3호
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    • pp.289-293
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    • 2021
  • This study was conducted to investigate the distribution of duck production in duck housing as a function of the breeding period. The items in duck production distribution included body weight, feed intake, feed conversion ratio, and average duck production. All data were based on eight cycles (June and December, 2017; February, June, August, September, and November, 2018; February, 2019) at Farm Site 1 through 7. The most optimal results in the duck production distribution were observed at Site 1 for weight gain, feed intake, and feed efficiency. This could be explained by the fact that Site 1 was well managed in environmental improvement and sustainability. Based on these data, selective alternatives to improve duck production in duck farms are recommended as follows: first, proper management and recording of litter used as a flooring material are required, and second, continuous management such as temperature, relative humidity and ventilation is needed. Lastly, it is necessary to change duck facilities by introducing environmental management techniques. Furthermore, efforts to improve the overall facilities and management of duck breeding farms through additional field studies are needed in the future.