• 한국전기전자재료학회논문지
• /
• 제18권9호
• /
• pp.851-855
• /
• 2005

We investigated the unbalanced characteristics of the superconducting fault current limiters (SFCLs) based on YBCO thin films with a single line-to-ground fault. When a single line-to-ground fault occurred, the short circuit current of a fault phase increased about 6 times of transport currents after the fault onset but was effectively limited to the designed current level within 2 ms by the resistance development of the SFCL. The fault currents of the sound phases almost did not change because of their direct grounding system. The unbalanced rates of a fault phase were distributed from 6.4 to 1.4. It was found that the unbalanced rates of currents were noticeably improved within one cycle after the fault onset. We calculated the zero phase currents for a single line-to-ground fault using the balanced component analysis. The positive sequence resistance was reduced remarkably right after the fault onset but eventually approached the balanced positive resistance component prior to the system fault. This means that the system reaches almost the three-phase balanced state in about 60 ms after the fault onset at the three-phase system.

• Biomolecules & Therapeutics
• /
• 제30권4호
• /
• pp.309-319
• /
• 2022

Metabolic bone diseases are serious health issues worldwide, since several million individuals over the age of 50 are at risk of bone damage and should be worried about their bone health. One in every two women and one in every four men will break a bone during their lifetime due to a metabolic bone disease. Early detection, raising bone health awareness, and maintaining a balanced healthy diet may reduce the risk of skeletal fractures caused by metabolic bone diseases. This review compiles information on the most common metabolic bone diseases (osteoporosis, primary hyperparathyroidism, osteomalacia, and fluorosis disease) seen in the global population, including their symptoms, mechanisms, and causes, as well as discussing their prevention and the development of new drugs for treatment. A large amount of research literature suggests that balanced nutrition and balanced periodic supplementation of calcium, phosphate, and vitamin D can improve re-absorption and the regrowth of bones, and inhibit the formation of skeletal fractures, except in the case of hereditary bone diseases. Meanwhile, new and improved drug formulations, such as raloxifene, teriparatide, sclerostin, denosumab, and abaloparatide, have been successfully developed and administered as treatments for metabolic bone diseases, while others (romososumab and odanacatib) are in various stages of clinical trials.

• 디지털융복합연구
• /
• 제12권8호
• /
• pp.35-47
• /
• 2014

카지노 관련 정책에 대한 정성적인 방법으로 한 주민의식 분석으로 기대도, 지지도, 적정도, 인지도, 참여도, 기여도, 수혜도를 분석한 주요 결과는 다음과 같다. 첫째, 카지노 관련 정책에 대한 재정지원 및 규제완화혜택 인식도(인지도 III)가 가장 높고, 수혜도와 기여도 II 순으로 높게 나타났다. 이 결과 지금까지 폐광지역 진흥정책에 대해 관심 있게 지켜보았으나 그 효과는 기대에 못 미치는 것으로 나타났다. 현재 추진하고 있는 2단계 사업과 폐광개발기금을 대체산업육성자금으로 활용하는 방안이 주민의 요구로 판단된다. 둘째, 카지노 관련 정책에 대한 비교 평가에서 진흥 정책 인지도와 지역발전 기여도, 참여도와 지역발전 기여도, 수혜도와 지역발전 기여도, 폐광지역진흥정책 참여도와 지역균형발전 기여도, 수혜도와 지역균형발전 기여도 등의 관계를 분석한 결과 모든 관계 사이에 관련성이 존재하는 것으로 분석되었다.

• 한국식생활문화학회지
• /
• 제11권3호
• /
• pp.349-357
• /
• 1996

Infanthood is a crucial period when mental and emotional developments take place along with physical growth. Adequate supply of nutrition is essential during this period and there is an urgent need for proper education and guidance on balanced nutrition. Therefore, this study tried to set the direction for developing baby food by investigating the conditions of weaning status and mothers perspectives on weaning. According to the result of this study, the average period when interviewees began weaning of their infants is 4.1 months and finishing period of weaning is 14.2 months on average. The frequency of consuming commercial weaning food is once a week. As high as 88.4% and the fruit juice was mainly used as the starting weaning food. The consumtion rate, more than once a day, is as high as 60%, they use commercial weaning food for convenience, especially when they are out. The 65% of surveyed group show rather dissatisfactory view about the commercial weaning food, and wanted improvements and changes. Interviewees wanted to obtain the information on baby food sold in the market and how to prepare baby food through technical literatures, and they frequently relied on commercial baby food due to its convenience. The most desired type of baby food was semi-solid paste in a disposable package that can be stored at room temperature.

• 대한인간공학회지
• /
• 제27권2호
• /
• pp.25-37
• /
• 2008

The purpose of this research is to understand the physiological characteristics of muscular men between the ages of 20 and 34 years who are distinct from the general population due to their muscular development, and to categorize them according to upper body somatotypes. This research was conducted in order to provide basic data necessary for developing clothing products for muscular men. The research method and results were as follows: the "Sheldon's" and "Heath-Carter" somatotype classification methods were carried out at sports centers, the Athletic College, and military bases in Seoul and Gyeonggi province. Excluding the 32 subjects that did not have a balanced mesomorph, ectomorphic mesomorph or mesomorph-ectomorph, research on the remaining 168 subjects was used in the data analysis. 2. We used the following factor analysis: factor 1 for torso size; factor 2 for upper-arm, armpit, and chest breath size; and 3. The upper body was categorized into four (4) types, and their individual characteristics were as follows: Type 1 had the most developed arms, shoulders, chest muscles, and the shortest height. These subjects had an average of 191 somatotype points and could be classified as a balanced mesomorph. The heights and the lengths of Type 2 were short. They had slim physical structures, averaged 182 somatype points, and could be classified as an ectomorphic mesomorph. somatotype points and were classified as a balanced mesomorph. The heights and the lengths of Type 4 were long. They had slim physical structures, averaged 164 somatotype points, and were classified as a balanced mesomorph-ectomorph. 4. After carrying out a discriminant analysis to validate the categories of muscular men's upper bodies, we concluded that our model had an accuracy rating of 98.1%.

• 보건행정학회지
• /
• 제16권3호
• /
• pp.52-69
• /
• 2006

Researchers indicates several issues as to performance evaluation methods for public health centers. Firstly, health centers are passively involved in the evaluation process, the performance indicators are activity-oriented, and mostly unrealistic. Balanced Scorecard is one of the methods for evaluating organizational performance, which is utilized at current in many industries including public sector. The purposes of this study is to apply balanced scorecard approach to a public health center and to develop performance indicators as well as their vision and strategies. For developing performance indicators, researchers selected K City Public Health Center and implemented brainstorming with members of health promotion team. Through team process they suggested goals, strategies and several indicators they considered proper to accomplish their shared vision. And then appropriateness of the indicators were evaluated by professional researchers in health promotion field for consensus building by email questionnaire. Based on survey and professional consensus meeting, 11 performance indicators were tailored in four perspectives as well as 6 strategies and 10 strategic goals, which are steps for accomplishing shared vision of health promotion team. For details, refer to the paper. Most members of health promotion team were satisfied with the indicators. However issues such as low level of recognition and familiarity with a new concept of BSC, and cultural resistance to strategic approach in public organizations should be addressed for future application and dissemination of BSC technique to public health organizations.

• 한국건설관리학회:학술대회논문집
• /
• 한국건설관리학회 2002년도 학술대회지
• /
• pp.27-34
• /
• 2002

정보와 지식의 활용 제고는 건설기업에게도 중요한 경영목표의 하나이며 이러한 내외부 경영환경의 변화는 전통적인 재무제표에 의한 기업의 성과평가만으로는 그 다양한 경영성과를 평가하는데 한계를 가지게 되었다. 이러한 기업의 다양한 내외부 경영성과를 평가하기 위해서는 기업의 핵심역량에 대한 새로운 성과평가의 모델이 요구되고 있다. 그러므로 전통적인 재무적 평가지표에 더하여 고객지표, 학습과 성장지표, 내부프로세스지표의 4개 평가지표를 종합적으로 포함하는 균형성과지표인 BSC(Balanced Score Cards)개념을 건설기업에 적용하여 건설기업의 특성에 맞는 새로운 성과평가모델을 제시하고자 하였다. 이를 위하여 국내외 건설기업의 비전과 전략을 분석하여 전략적 특성의 공통점을 건설기업의 특성으로 먼저 파악한 뒤, 건설기업의 경영목표에 대한 성과관리의 측면에서 건설기업의 경영환경에 맞는 성과평가의 모델을 개발하고 성과평가지표들의 사례를 제시하였다.

• 한국문헌정보학회지
• /
• 제50권3호
• /
• pp.533-563
• /
• 2016

본 연구는 대학도서관진흥법에 따른 대학도서관 운영평가를 실시하기 위한 평가요소와 평가체계안을 개발하는 데에 그 목적이 있다. 이를 위해 대학도서관 내 외부의 전문가, 실무자 등 다양한 이해관계자들을 대상으로 심층면담, 설문조사, 공청회, 토론 등을 실시하여, 합의를 바탕으로 연구를 진행하였다. 평가항목 구성안은 균형성과표(Balanced Scorecard)에 기반을 두고 개발되었으며, 대학도서관 운영 전반에 걸친 요소와 성과에 대한 균형 잡힌 관점을 제공하였다. 제안된 대학도서관 운영평가안이 도서관의 가용 자원이 목표달성 활동을 위해 사용되고 있는지를 검토하게 함으로써 대학도서관 발전에 기여할 수 있기를 기대한다.

• 전력전자학회논문지
• /
• 제18권1호
• /
• pp.72-83
• /
• 2013

The paper proposes a new multilevel variable output voltage AC/DC Converter for power supply of power amplifiers used in underwater acoustic sensors. The proposed multilevel variable output voltage AC/DC Converter is composed of two parts. One as the input section is the high efficiency phase-shifted PWM full bridge DC-DC converter to get multiport power sources. The other as the output section is composed of two flying-capacitor 3-level DC-DC converters and a diode bridge circuit to get fast-response and multilevel variable output voltage for an envelope amplifier. Also the paper suggests the detailed circuit topology and design guideline of multilevel variable output voltage AC/DC converter. It also proposes the power balanced control method between 3-level converters and the voltage balanced algorithm for flying capacitors. Its characteristics should be verified by the detailed simulation results. It is anticipated that the proposed converter will be used very well for power amplifiers used in underwater acoustic sensors.

• 한국컴퓨터정보학회논문지
• /
• 제17권6호
• /
• pp.191-199
• /
• 2012

본 연구는 공공부문에 있어 행정의 효율적인 운영과 관리를 위해 구축되고 있는 지방자치단체의 BSC 통합 성과 관리시스템의 성과지표들을 물리적 자산관리와 인적자산관리, 관계적 자산관리와 같은 세 가지 정보기술 자산관리 관점으로 분류하여, 조직이 효율적인 성과달성을 위해 관리하려고 하는 지표들 중에 존재하는 정보기술 관리능력을 통하여, 각각의 자산관리가 조직의 내부프로세스 효율성 향상과 조직의 성과라고 할 수 있는 시민만족도에 미치는 영향을 분석하고자 하였다. 또한, 비즈니스 프로세스 수준의 성과에 대한 정보기술의 영향을 검토하기 위하여 세 가지 자산관리가 시민만족도에 직접적인 영향을 주기 보다는 내부 프로세스 효율성을 통해 시민만족도에 영향을 미치는지에 대한 매개효과를 분석하고자 하였다. 이를 위해, 지자체 S시의 성과관리 지표 138개를 대상으로 관련된 지표를 추출하여 정보기술 자산관리의 세 가지 관점에서 재분류하였으며, 이들을 정보기술 자산관리 측정을 위한 하위 측정변수로 사용하였다.