• 제목/요약/키워드: Made-Public Information

검색결과 793건 처리시간 0.027초

Graph Database Solution for Higher Order Spatial Statistics in the Era of Big Data

  • Sabiu, Cristiano G.;Kim, Juhan
    • 천문학회보
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    • 제44권1호
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    • pp.79.1-79.1
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    • 2019
  • We present an algorithm for the fast computation of the general N-point spatial correlation functions of any discrete point set embedded within an Euclidean space of ${\mathbb{R}}n$. Utilizing the concepts of kd-trees and graph databases, we describe how to count all possible N-tuples in binned configurations within a given length scale, e.g. all pairs of points or all triplets of points with side lengths < rmax. Through benchmarking we show the computational advantage of our new graph-based algorithm over more traditional methods. We show that all 3-point configurations up to and beyond the Baryon Acoustic Oscillation scale (~200 Mpc in physical units) can be performed on current Sloan Digital Sky Survey (SDSS) data in reasonable time. Finally we present the first measurements of the 4-point correlation function of ~0.5 million SDSS galaxies over the redshift range 0.43< z <0.7. We present the publicly available code GRAMSCI (GRAph Made Statistics for Cosmological Information; bitbucket.org/csabiu/gramsci), under a GNU General Public License.

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라돈의 영향과 관리 (Effects of radon and its management)

  • 조승연;김선홍;김민준
    • 실내환경 및 냄새 학회지
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    • 제16권4호
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    • pp.297-307
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    • 2017
  • As radon is a naturally occurring radioactive gas that can cause lung cancer and is classified as a Group 1 carcinogen, it is essential for the public to be aware of what radon is, and how to manage radon. Therefore, general information on radon, as well as its health risks, measurement methods, mitigation methods and suggestions for its management are addressed in this article. Over the last one to two decades, a number of wide-ranging studies on radon measurement and mitigation have been conducted in Korea, and the results of each study are comparable to the research achievements of other developed countries. For this reason, it is time to systematically establish a well-made Korean radon management organization.

디지털 이미지의 조형적 특성 연구: NFT 예술작품을 중심으로 (A Study on Formative Characteristics of Digital Images: Focused on NFT Arts)

  • 김혜성
    • Journal of Information Technology Applications and Management
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    • 제29권2호
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    • pp.1-15
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    • 2022
  • Image has more power in the 21st century than ever before. With the advance in technology and media, image is either made or received more easily and promptly using digital technology. Because of that, it has been hard for digital images to gain value as a work of art. But after NFT technology was developed and then applied to digital images, we have come to distinguish the original from the copy of it. People are trying various ways to allow digital images to be acknowledged as art, and changing the nature of digital images that makes new paradigms in the history of art. Through NFT artworks rising as a new style, this paper analyzed and investigated the new properties and changing characteristics of digital images in order to anticipate the characteristics of artworks that the public produces, enjoys, and consumes. This study is grounded on experimental analysis methods, and this author expects that it can contribute to figuring out which kinds of visual culture and artworks digital image is influencing currently from various perspectives.

우리나라 보건소장의 근무특성에 관한 연구 (A Study on Service Characteristics of Directors of Health Centers in Korea)

  • 유재원;문옥륜;이상이;김철웅;이상구
    • Journal of Preventive Medicine and Public Health
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    • 제31권4호
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    • pp.786-800
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    • 1998
  • This study has attempted to show general characteristics of health centre directors who have served the post of directorship during the last 40 years. Of 3,000 such health centre directors, information on about 2,500 directors was collected. While average length of service for health center directors has increased, that of vacancy period has decreased. Rural areas have a shorter average length of service than the urban area. Rural areas have twice longer length of vacancy period per health center. Kangwon-do has the longest average length of vacancy period since 1980(2.79 months/year), and Daejeon has the shortest length of vacancy period(0.21 months/year). Chung-buk has no physician directors. The civil servant's rank for the directorship has promoted from the fifth level to the fourth level since 1990. A comparison between the physician director & non-physician director was made as follows : first, the proportion of physician directors had maintained rather high before 1980 s; 62.5% in 1963, 78.3% in 1970, 70.4% in 1980. It decreased to 44.1% in 1990 and 47.6% in 1997. Instead, non-physician directors has abruptly increased since 1980s (12.4% in 1980, 55.4% in 1990 and 50.8% in 1997). Second, physician directors mainly locate in the urban area(58.0% in 1997), but non-physician directors mainly in the rural area(67.2% in 1997). Third, since 1980, the average length of service for physician directors and for non-physician directors has become similar. Fourth, the mean age of physician directors is 45.1 years, and that of non-physician directors 55.7 years. The latter is 10 years older than the former.

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대인공포증의 치료를 위한 가상 연설 시뮬레이터의 실험적 제작 (Construction of Virtual Public Speaking Simulator for Treatment of Social Phobia)

  • 구정훈;장동표;신민보;조항준;안희범;조백환;김인영;김선일
    • 대한의용생체공학회:의공학회지
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    • 제21권6호
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    • pp.615-621
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    • 2000
  • 대인공포증은 사람과의 대면을 무서워하여 그 상황을 회피하는 증상을 말한다. 이 공포증을 치료하기 위해서는 약물치료방법과 인지·행동 치료방법이 주로 사용되었다. 이런 기존의 방법들은 치료 효율이 떨어지며, 치료시 어려움이 있다는 단점을 가지고 있다. 최근에는 기존의 치료방법의 단점을 극복하기 위해 많은 연구에서 가상현실을 정신치료에 적용하고 있다. 가상환경은 환자에게 적절한 자극을 제공하여 환자로 하여금 공포감을 느끼도록 하고, 환자는 이러한 공포상황에 체계적으로 노출됨으로써 공포증을 극복할 수 있게 된다. 본 연구에서는 개인용 컴퓨터를 기반으로 가상 연설 시뮬레이터를 개발하여 대인공포증 치료에 이용하고자 한다. 가상 연설 시뮬레이터를 구성하기 위해 위치센서, 머리 부착형 디스플레이장치와 사운드 시스템을 사용하였고, 치료를 위한 가상환경은 가상청중 8명이 있는 세미나실을 배경으로 구성하였다. 또한 가상현실 정신치료에서 중요한 요소로 작용하는 몰입감을 높이기 위해 머리 부착형 디스플레이 장치에 위치센서를 부착함으로써 환자의 머리이동이 가상환경에 적용되도록 하였고, 여기에 삼차원 사운드를 적용함으로써 목소리나 박수소리 등 여러 가지 소리들이 사실적으로 느껴지도록 하였다. 또한 가상청중이 환자의 발표내용에 맞게 여러 가지 행동과 표정을 변하게 하였다. 본 연구에서 개발한 가상연설 시뮬레이터는 경제적이고 안전한 정신치료에 이용되는 것에 목적이 있으며, 앞으로의 임상실험을 통한 몰입과 공포유발 인자 및 치료효과의 에 관한 정보를 얻고, 이를 시뮬레이터에 계속 적용하는 연구가 필요할 것이다.

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서울올림픽대회 기간중 스포츠의료 이용에 관한 분석 (Analysis of Sports Medical Care Utilization during the 24th Seoul Olympic Games)

  • 유승흠;손명세;이영두;박은철;김춘배
    • Journal of Preventive Medicine and Public Health
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    • 제22권1호
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    • pp.136-145
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    • 1989
  • This study made a descriptive analysis of the cumulative amount and rate of sports medical care utilization during the 24th Seoul Olympic Games by the participating athletes, officials, etc. The sports medical care utilization was a component of the total medical care use and was basically caused by the prevention and treatment of sports injuries. The analytic data were derived from the Olympic Health Management Information System(OHMIS) of the SLOOC and the Korea Athlete Trainer Association(KATA). These were analyzed according to the quantity of physician visits and the utilization rate, which was the amount of utilization divided by the total number of participating persons. The results were as follows: Firstly, the sports medical care utilization by the persons participating in the Seoul Olympics amounted to 17.9% of the total medical care utilization. The venue medical services utilization accounted for 54.7% of the total physician visits, which was larger than the village medical center's utilization. The number of physician visits per hundred persons during the 2 week period in the venue clinic was 3.03 and that of the village medical center was 2.51, therefore, the total was 5.54. Secondly, athletes accounted for 82.3% and officials 12.2% in the sports medical care utilization by participants. These results were because athletes, who were directly related to the games, called extremely often on the physicians. The utilization rate of sports medical care by athletes was 34.29. Thirdly, the sports medical demand according to type of therapy could be ranked from high to low in the following order: sports massage, thermal therapy, and electrical stimulation treatment, etc. The department of physical therapy in the village medical center was used a great deal. Fourthly, the trend of daily sports medical care utilization by the athletes showed a bell shape centering around the opening day of the Seoul Olympic Games. The utilization rate of athletes was 2.3; however, that of officials was 0.6. Lastly, the sports medical demand was calculated according to the continents, and Central America, Africa and Middle-East Asia proved to have a higher rate of sports medical care utilization than the more powerful and industrialized continent or regions.

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한국 기록관리와 '거버넌스'에 대한 역사적 접근 (A Historical Approach to the Development of Democracy and the Archival Society in Korea)

  • 오항녕
    • 기록학연구
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    • 제11호
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    • pp.15-40
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    • 2005
  • 'Governance' is a subject that is widely discussed these days in the government and the academic world. I think that the new concept, 'governance', is a strategy to develop the democracy of the society in its institutional and functional aspects. When we are going to discuss about governance, public records and their relationships, without understanding the meaning of 'public' in Korea, we cannot expect to discuss the matter precisely. It is said that Korean public service sectors are awash with authoritarianism and unreasonableness, and that they are at the center of seething corruption and bribe scandals. It is the legacy that the regimes adopted in the aftermath of the Japanese colonial rule for 35 years. The colonial legacy included not simply the practice of the Japanese colony, but also people who had collaborated the Japanese. The American military government and Rhee, Sung-Man regime also appointed the same officials to government posts. As was the same case in other areas including economy, press, education, politics, law, etc. In this point of view, "Righting historical wrongs", a controversial issue now in Korea, aims at establishing the right relationships between an individual and the public, and eventually laying the foundation of democracy for future generation, a procedure of achieving good governance. Apparently, Korea has made progress in developing democracy, as well as in reforming the government policy and organization. Many independent commissions are performing the projects instead of the government institutions that mandated to do the job, but has not played their roles. The e-government projects in Korea was launched in 2001 by the former administration. However, the confusion of records-management after the promulgation of the act is the result of the lack of strategy and the inconsistency of the vision. Good record-keeping supports effective, transparent and accountable government. Accountability is a key element of good governance. It is a recognized fact that without information, there is no guidance for decision-making, and accountability. Thus without records, there is no accountability for the decisions of actions. Transparency means that the decisions taken and their enforcement are carried out based on led-out rules and regulations. When both accountability and transparency are non-existent, good governance is bound to fail. Archival institutions have to give an attention to inner-governance because of the new trend of archival practice, namely 'macro-appraisal'. This 'macro-appraisal' is a kind of a functions-based approach. However, macro-appraisal focuses not just on function, but on the three-way interaction of function, structure and citizen, which combined reflect the functioning of the state within civil society, that is to say, its governance. In conclusion, the public and democracy are major challenges in the Korean society. The so-called good governance requires good record management. In this respect, records managers are in the front line of instituting good governance, and achieving better public and democracy for future generation, a procedure of achieving good governance.

기업인수목적회사(SPAC) 제도 도입의 효과 (Introduction of SPAC and It's Effects)

  • 이호선
    • 경영과정보연구
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    • 제33권2호
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    • pp.263-279
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    • 2014
  • 기업인수목적회사(SPAC)는 기업합병만을 목적으로 하는 페이퍼 컴퍼니로 우회상장을 대신하여 투자자를 보호하려는 목적으로 2009년 우리 증시에 처음 도입되었다. 이후 2013년까지 국내 증시에 상장된 1기 SPAC은 총 22개로 이중 10개가 합병에 성공하였고, 나머지 12개는 기업합병을 하지 못하고 상장폐지되었다. SPAC의 상장에 앞서 공모규모는 약 200~300억원 정도였으며, 상장 초기 일부 SPAC은 주가 급등락을 겪기도 하였으나, 평균적으로 상장 이후 1년 시점에는 주가가 모집가격을 하회하다가 2년 시점에서는 모집가격 근처로 회복되는 패턴을 보였다. 기업합병에 성공한 SPAC의 경우 합병공시 이전 25일간의 공시효과를 살펴보면 누적평균초과수익률(CAAR)이 2.94%로 유의하게 나타났으며, 주주총회 전 25일부터 이후 20일까지의 CAAR도 10.60%로 유의한 주주 부의 증가를 나타냈다. 1기 SPAC을 통해 볼 때 SPAC에 대한 과다한 규제가 SPAC시장의 활성화를 저해한 측면이 있으며, 향후 SPAC의 활성화를 위해서는 이러한 규제들을 완화할 필요성이 있다.

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도서관정책 추진을 위한 행정체계 조직화 방안에 관한 연구 (A Study on the Method of Organizing the Public Administration System for Library Policy Implementation)

  • 조현양;이재원
    • 한국도서관정보학회지
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    • 제36권4호
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    • pp.115-132
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    • 2005
  • 도서관의 기능은 단순히 문화유산의 보고 및 문화발전에만 있는 것이 아니라 평생학습과 인적자원개발이라는 종합적 기능을 포괄한다. 교육인적자원부는 과거의 교육부와는 달리 인적자원과 지적자원을 종합 개발$\cdot$관리하는 법적인 기반과 리더쉽을 확보하고 있다. 도서관이 인적자원개발과 평생학습의 거점으로 발전하려면 리더쉽을 발휘할 수 있는 교육인적자원부로 도서관정책을 일원화할 필요성이 있다. 국가인적자원개발 정책을 총괄 조정하는 교육인적자원부에서 도서관업무를 직접 관장함으로써 체계적인 도서관정책 집행이 가능하며, 도서관 간 협력이 용이할 뿐 아니라. 국가 및 지역 인적자원개발 정책과 연계가 가능할 것이다.

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NTRUEncrypt에 대한 단일 파형 기반 전력 분석 (Single Trace Side Channel Analysis on NTRUEncrypt Implementation)

  • 안수정;김수리;진성현;김한빛;김희석;홍석희
    • 정보보호학회논문지
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    • 제28권5호
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    • pp.1089-1098
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    • 2018
  • 양자 컴퓨터의 개발이 가시화됨에 따라 RSA, Elliptic Curve Cryptosytem과 같은 암호 시스템을 대체할 수 있는 포스트 양자 암호에 대한 연구가 활발히 진행되고 있다. 하지만 이러한 포스트 양자 암호조차도 실 환경에서 구동될 때 발생할 수 있는 부채널 분석에 대한 취약점을 반드시 고려해야만 한다. 본 논문에서는 NIST 포스트 양자 암호 표준 공모에 제출된 NTRU 구현 소스인 NTRUEncrypt에 대한 새로운 부채널 분석 기법을 제안한다. 기존에 제안되었던 부채널 분석 방법은 많은 수의 파형을 이용하였지만 제안하는 분석 기술은 단일 파형을 이용한 분석 방법으로 공개키 암호 시스템에 실질적으로 적용이 가능하다. 또한 본 논문에서는 제안하는 분석 기술에 안전성을 제공할 수 있는 새로운 대응 기술을 제안한다. 이 대응 기법은 과거 NTRU 부채널 분석 기법에도 안전할 뿐만 아니라 기존의 NIST에 제출된 코드보다 더 효율적 구현이 가능한 알고리즘을 제안한다.