• 제목/요약/키워드: Evaluations

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General Formulas for Explicit Evaluations of Ramanujan's Cubic Continued Fraction

  • Naika, Megadahalli Sidda Naika Mahadeva;Maheshkumar, Mugur Chinna Swamy;Bairy, Kurady Sushan
    • Kyungpook Mathematical Journal
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    • 제49권3호
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    • pp.435-450
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    • 2009
  • On page 366 of his lost notebook [15], Ramanujan recorded a cubic continued fraction and several theorems analogous to Rogers-Ramanujan's continued fractions. In this paper, we derive several general formulas for explicit evaluations of Ramanujan's cubic continued fraction, several reciprocity theorems, two formulas connecting V (q) and V ($q^3$) and also establish some explicit evaluations using the values of remarkable product of theta-function.

의료기관 대상 평가통합 및 효율화 방안 (Integration and Efficiency Strategies of Evaluations for Medical Institutions)

  • 김경숙
    • 한국의료질향상학회지
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    • 제24권1호
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    • pp.30-39
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    • 2018
  • Objectives: In Korea, there are many kinds of evaluations for medical institutions. However, evaluations are increasingly burdensome for medical institutions because evaluation agencies, evaluation timing, and evaluation methods are different. The purpose of this study is to improve the efficiency of evaluation for medical institutions and ultimately to provide quality medical services to patients. Methods: In this study, 2,310 indicators of 19 kinds of evaluation for medical institutions were analyzed. Results: 1,424 indicators were available for on-site surveys and 886 indicators were not available for on-site surveys. There were 4 kinds of evaluation that can be integrated in total, 12 kinds of evaluation that can be integrated partially, and 3 kinds of evaluation that need to maintain the current evaluation system. Conclusion: In order to provide patient-centered quality medical services through reduction of burden due to the evaluation for medical institutions, it is necessary to deeply discuss the efficiency of evaluation integration and result utilization.

구조계의 신뢰도해석을 위한 개선된 기법 (Improved Methods for Reliability Evaluations of Structural Systems)

  • 류정수;윤정방
    • 한국전산구조공학회:학술대회논문집
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    • 한국전산구조공학회 1992년도 봄 학술발표회 논문집
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    • pp.51-57
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    • 1992
  • The primary objective of this study is the development of second moment methods for the efficient reliability evaluations of structural systems. Two methods are presented. One is the improved first order reliability method (IFORM), and the other is the modified probabilistic network evaluation technique (MPNET). For the purpose of verifying the proposed methods, example analyses are carried out on several cases with two failure modes, a plane frame structure involving three failure modes and simplified parallel member models for fatigue reliability evaluations of offshore structures. Numerical results indicate that the effectiveness of the proposed methods over the conventional ones (i.e., the FORM and the PNET) increases very significantly as the number of failure modes of the system increases.

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Pre and Post Evaluations on IT Platform Migration to Open Systems

  • Shim, Seon-Young;Kim, Eun-Jin
    • Journal of Information Technology Applications and Management
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    • 제15권3호
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    • pp.1-25
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    • 2008
  • IT platform migration to open systems (IPMO) bears a great deal of risk over all the associated processes, in terms of a major IT investment. Hence it requires empirical data and references for decision making. Although there have been a number of published papers encouraging or discouraging IPMO, the studies that deliver useful empirical evidence for IPMO decisions are rare. The obvious first step to resolve this problem would be to gain lessons from the organizations who experienced IPMO. Based on the Delphi study, we examine both the pre and post evaluations on IPMO benefits and risks and analyze the underlying reasons of different evaluations from different stages. Our results identify the most important factor the organizations should seriously consider, and which factor is easy to neglect at the ex-ante appraisal stage.

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Quick Evaluation of Spacecraft Orbit Maneuver Using Small Sets of Real-time GPS Navigation Solutions

  • Lee, Byoung-Sun;Lee, Ho-Jin;Lee, Seong-Pal;Kim, Jong-Ah;Park, Hae-Jin
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 2000년도 제15차 학술회의논문집
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    • pp.458-458
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    • 2000
  • Quick evaluations of two in-plane orbit maneuvers using small see of real-time CPS navigation solutions were peformed lot the KOMPSAT-1 spacecraft operation. Real-time GPS navigation solutions of the KOMPSAT-1 were collected during the Korean Ground Station(KGS) pass. Only a few sets of position and velocity data after completion of the thruster firing were used for the quick maneuver evaluations. The results were used for antenna pointing data predictions for the next station contact. Normal orbit maneuver evaluations using large see of playback GPS navigation solutions were also performed and the result were compared with the quick evaluation results.

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석유화학 플랜트 배관계의 응력 및 진동 평가와 적용에 관한 연구 (A Study on Stress and Vibration Evaluations and Application of Piping System in Petrochemical Plant)

  • 민선규;최명진;장승호
    • 한국공작기계학회논문집
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    • 제11권3호
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    • pp.110-116
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    • 2002
  • Here are shown on stress and vibration evaluations and application of piping system in petrochemical plant with and actual example. While stress evaluation by thermal growth has no argument on the calculated results, vibrational evaluations have some different results in accordance with the evaluation methods. In case of the static stress evaluation the ASME B3l.3 code defines 7000 cycles of fatigue lift: in operating the piping system with a design condition. However, the method of vibrational evaluation on piping systems in petrochemical plants has not been established clearly, yet. In this stuffy, it is purposed to present the requirement of a vibrational evaluation method for petrochemical plant piping system, with an actual application.

Lactococcus lactis ATCC 11454로 처리한 냉장 돼지고기 등심의 미생물, pH 및 관능평가 (Microbiological, PH and Sensory Evaluations of Refrigerated Pork Loins Treated with Lactococcus lactis ATCC l1454)

  • 김창렬;김광현;이재일
    • 한국식품영양학회지
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    • 제14권2호
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    • pp.126-131
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    • 2001
  • Microbiological, pH and sensory evaluations of pork loins treated with lactic acid cultures (Lactococcus lactis subsp. lactis ATCC 11454 grown in 10% milk solids) during storage at 4$^{\circ}C$ were assessed. Pork loins were immersed in solutions containing 3.96 log units, 4.10 log units, or 4.23 log units of individual lactic acid cultures for 2 min. Pork loins treated with lactic acid cultures had a inhibitory effect (P<0.05) on the growth of aerobic palate counts during storage of 3 days at 4$^{\circ}C$. Pork loins treated with lactic acid cultures during storage of 3 days at 4$^{\circ}C$ significantly (P<0.05) decreased pH values compared to those of controls. Sensory evaluations for odor and appearance of pork loins treated with lactic acid cultures during storage of 9 days at 4$^{\circ}C$ were a "liked less" to "typical" category compared to those of controls.

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대학 수업평가의 개념모형 개발 (A Study on Developing a Conceptual Model of Course Evaluation in University)

  • 이은화
    • 수산해양교육연구
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    • 제18권3호
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    • pp.314-328
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    • 2006
  • The purpose of this study is to establish a conceptual model of the course evaluations. in University. This paper has examined the course evaluations according to the levels, purposes, objects, and methods of them. And this paper has been classified for a conceptual model of the course evaluation. As the result of this analysis, four dimensions of course evaluation have been found. First, formative and summative evaluation have been found. The purposes of formative evaluation were improving quality of courses and collecting information for improvement of curriculum. The purposes of summative evaluation were offering informations on faculty staffing and improving of learning outcomes. Second, the levels of course evaluation were classified into university-level, professor-level, and student-level. Third, the objects of course evaluation were classified into analysis, design, development, implementation, and evaluation. Forth, the methods of course evaluation were classified into questionnaire, observation, interview, and content analysis. As a result of this analysis, 120 types of course evaluations have been found.

Recording and interpretation of ocular movements: saccades, smooth pursuit, and optokinetic nystagmus

  • Jin-Ju Kang;Sun-Uk Lee;Jae-Myung Kim;Sun-Young Oh
    • Annals of Clinical Neurophysiology
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    • 제25권2호
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    • pp.55-65
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    • 2023
  • The ultimate role of ocular movements is to keep the image of an object within the fovea and thereby prevent image slippage on the retina. Accurate evaluations of eye movements provide very useful information for understanding the functions of the oculomotor system and determining abnormalities therein. Such evaluations also play an important role in enabling accurate diagnoses by identifying the location of lesions and discriminating from other diseases. There are various types of ocular movements, and this article focuses on saccades, fast eye movements, smooth pursuit, and slow eye movements, which are the most important types of eye movements used in evaluations performed in clinical practice.

당파적 유권자는 정부의 국정 운영에 대해 어떻게 문책하는가?: 정부의 국정 운영 평가와 정부 신뢰, 그리고 당파적 책임 귀속 (How Partisan Voters Dispense Reward and Punishment for Government Performance: The Influence of Partisan Blame Attribution on Trust in Government)

  • 성예진;길정아
    • 의정연구
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    • 제27권1호
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    • pp.79-115
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    • 2021
  • 정부의 국정 운영에 대한 유권자들의 부정적인 평가는 정부 신뢰를 낮춤으로써, 이들이 정부에 대해 문책을 하는 의미를 지닌다. 따라서 정부 신뢰는 대의 정부의 정치적 책임성을 제고하는 기능을 한다. 그러나 국정 운영의 주체가 실질적으로 정당 정부라는 점, 따라서 정부 신뢰가 담고 있는 당파적 속성을 고려할 때, 본 연구는 유권자들의 국정 운영 평가가 정부 신뢰를 낮추는 영향력이 정당일체감에 의해 차별적으로 나타날 것을 경험적으로 검증한다. 응답자가 인식하는 정치/사회 갈등 수준이 높을수록, 정부 정책 평가가 부정적일수록, 경제 상황 평가가 부정적일수록 정부에 대한 신뢰가 낮아지는 가운데, 여당인 더불어민주당 지지자에게서는 이러한 영향력이 미미하였으나, 제1야당인 미래통합당 지지자들에게서는 그 영향력이 가장 명확하게 나타났다. 본 연구의 결과는 정부에 대한 유권자들의 신뢰와 불신의 대립이 정부의 국정 수행에 대한 평가보다 오히려 유권자들의 정치적 선호에 근거하여 발현되고 있음을 보여준다. 또한, 이는 정부 신뢰가 가지는 문책의 기능이 왜곡됨으로써 정부가 정치적 책임성을 제고할 유인이 약화될 수 있음을 시사한다.