• 대한전기학회:학술대회논문집
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• 대한전기학회 2005년도 추계학술대회 논문집 전기설비전문위원
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• pp.103-106
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• 2005

A lot of R&D on the diagnosis of stator winding insolation for large rotating machines has been carried out since the 1970s. The on-line partial discharge measurement has proved to be an effective technique in the evaluation of the state of stator insulation in high voltage rotating machines. The purpose of this paper is to describe the method of the on-line partial discharge measurement on stator windings for hydro- generator with ceramic sensor and measuring system. We developed ceramic coupling sensor, partial discharge measuring system, terminal box and index parameters.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2003년도 하계학술대회 논문집 B
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• pp.738-740
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• 2003

A lot of R&D on the diagnosis of stator winding insulation for large rotating machines has been carried out since the 1970s. The on-line partial discharge measurement has proved to be an effective technique in the evaluation of the state of stator insulation in high voltage rotating machines. It is well known that if the discharge pulses propagate through the winding conductor, they are attenuated and delayed. In the present study, to investigate the attenuation and the time delay of discharge pulses through the winding conductor, a series of tests were conducted using a model coils and slot. Thus it could be concluded that while the high frequency pulse propagates in radiation or end-winding coupling modes, the low frequency one does in a series mode through the coil conductor.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2002년도 추계학술대회 논문집 전기물성,응용부문
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• pp.37-39
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• 2002

UHF method is very effective to diagnosis for partial discharge of GIS. In generally, inner UHF sensor can be attached on sheath cover of GIS under construction for periodic inspection. However, there is no inner UHF sensor for GIS of the domestic substation. We used the outer UHF sensor attached on spacer for GIS of existing substation. In this paper, we report the diagnosis result of partial discharge on 800kV GIS in domestic substation. From these results, we can find the quantity, reason and location of PD and certificate the performance of UHF method for partial discharge diagnosis of GIS.

• 셀메드
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• 제13권6호
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• pp.4.1-4.10
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• 2023

Background and objective: Cervicitis are an inflammatory condition of the cervix. This may be acute, chronic, active & specific or non-specific, which may cause various sign & symptoms. Abnormal vaginal discharge, lower abdominal pain, lower backache, post coital bleeding. If not treated timely it causes various complications viz PID, infertility, endometritis, ectopic pregnancy etc. Hence it has been decided to conduct a clinical trial for its management. Method: This study was an open observational study. The entire patients were allocated by considering the criteria of inclusion & exclusion. Marhame dakhilyun with roghane sausan is given 10 mg as ḥamūl at bed time, after menses for 21 days. All the patients were assessed by primary outcome of abnormal vaginal discharge, lower abdominal pain, lower backache, post coital bleeding & secondary outcomes of vaginal symptoms scale score (VSS) which score the vaginal discharge with QOL in cervicitis patients and vaginal analogue scale (VAS) for pain. Result: In this present study, marked improvement is observed in cervicitis. The mean ± SD of vaginal discharge before & after treatment is 2.57±0.050, 0.33±0.48 respectively which is highly significant with p value of<0.0001^**. VSS score before & after treatment is 21.27±6.12, 7.47±2.48 respectively with p<0.0001^** which is highly significant. VAS score used for LAB & LPA before & after treatment is 6.63±1.09, 1.90±1.29 respectively with p<0.0001^** which is highly significant. Interpretation & Conclusion: The study revealed that the formulation has been found effective in healing congestion, hypertrophied of the cervix and discharge and relieving the others associated symptoms of cervicitis. It is useful and provided immediate and effective treatment for cervicitis. Hence, the trial drug can be recommended for its management.

• 재활치료과학
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• 제9권2호
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• pp.55-71
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• 2020

목적 : 본 연구는 환자의 퇴원계획에 대한 작업치료사 개입의 필요성과 퇴원 스크리닝과 계획을 위해 고려되어야할 영역을 조사함으로써 효과적인 퇴원계획 실행을 위한 퇴원평가도구의 개발의 기초 자료를 제공하고자 실시되었다. 연구방법 : 연구 참여에 동의한 의료기관에서 근무하는 작업치료사 60명을 대상으로 온라인 설문 조사를 실시하였다. 설문 내용은 일반적 특성, 퇴원계획 현황, 퇴원평가와 퇴원계획 필요성, 총 36문항으로 구성되었다. 수집된 자료는 SPSS 20.0 프로그램을 이용하여 기술통계, 독립표본 티 검증, 일원배치분산분석, 사후검증은 쉐페 검증으로 분석하였다. 결과 : 퇴원계획과 준비에 대한 작업치료사의 역할과 퇴원평가도구의 필요성에 대한 인식은 높게 나타났으나, 작업치료사의 퇴원 관련 지식 및 정보 보유에 대한 인식 정도는 낮은 것으로 조사되었다. 퇴원계획중재 시 겪게 되는 어려움은 면담과 평가를 위한 적절한 수가의 부재, 퇴원계획을 위한 팀 접근의 부족, 퇴원계획을 위한 적절한 평가도구의 부재에 대한 응답이 높게 나타났다. 퇴원 시 평가의 필요성이 높은 영역은 낙상위험과 BADL수행으로 나타났으며, 평가의 필요성이 낮은 영역은 안녕감과 발병 전 기능수준으로 나타났다. 결론 : 본 연구를 통해 퇴원계획에 대한 작업치료사 개입의 필요성을 파악할 수 있었으며, 향후 효과적인 퇴원계획 실행을 위한 퇴원평가도구 개발의 기초자료가 될 것으로 사료된다.

• 물과 미래
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• 제15권3호
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• pp.49-55
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• 1982

본 연구는 중소하천유역에 있어서 미국토양보존전국(U.S. Soil conservation Service)의 SCS 방법과 $\Phi$-Index 방법과를 비교하면서 유효우량을 산정하고 또한 설계수문곡선의 첨두유량을 산정하는데 목적을 두고 있다. 낙동강 유역에 속한 신천유역은 UNESCO의 주관아래 국제수문 개발계획 대표시험유역으로 채택되었던 유역으로서 그 중요성이 크다고 생각하여 SCS 방법의 적용을 위하여 균양군의 분류에 따른 토지이용 및 처리 상태와 토양의 분류, 토양의 종류 등을 파악하여 유출수를 구하였다. 그리고 주요호우의 총우량일유효우량관계 자료에 의한 평균유출수와 비교해 본 결과 SCS 방법의 유출수가 적게 나타났으며, 신천유역의 5개 측소의 강우자료로부터 $\Phi$-Index 법에 의한 유효우량과도 비교하였다. 한편 설계수문곡선의 첨두유량은 SCS법, Chow법, Mockus법과 비교해 본 결과, SCS법의 무차원수문곡선과 Chow법이 실측에 의한 단위도의 첨두유량과 가까운 적합성을 보여주었다.

• 한국보건간호학회지
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• 제15권2호
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• pp.376-386
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• 2001

I. Background The problem of discharging patients from hospital have been well documented in the literature over the last 20 years. They included poor communication between hospital and community, inadequate notice of discharge, over-reliance on informal support and lack of statutory support, inattention to patients needs before leaving hospital, and wasted or duplicated visits by community nurses. Most patients discharged from hospital are able to return home with little or no support, while others will require a 'package of care' to support them back to good health. Patient with complex care needs, including the frail elderly and those with mental health problems, may require continuing care in special housing, residential, or nursing homes. With this population,effective discharge arrangement is needed and the study on this problem is urgent in Korea because the Medical Reform Project is on suspension of success. II. Results of the Study: 1. Discharge service needs assessed on 360 elderly patients who were hospitalized during the survey period at four university hospitals. Patients want to know the information on disease management after discharge. Follow-up telephone service is the most frequently checked service. 2. Multidisciplinary Discharge Planning is recommended at the hospital level to reduce the readmission and decrease the length of stay. 3. Further research is needed to validate and test the assumption of the solution which is developed in this research.

• 전기학회논문지
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• 제62권9호
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• pp.1297-1301
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• 2013

This paper analyzes of PD occurrence position through an analysis of the arrival time difference between the GIS partial discharge signal. Because of GIS (Gas Insulated Switchgear) is a facility very important power equipment and as part of the equipment that make up the power system, the stabilization of the power industry, which accounted for 88.5% share of GIS substation in the form of a substation is an important equipment for power supply. In the situation where we are gradually expanding the need for preventive diagnosis in order to improve the efficiency of equipment management and failure prevention for Preventive diagnosis. In this paper as a method for extracting pre-defect of failure of GIS Apply the average value method of calculating the 5 times each using a pulse of the first time of the second pulse (${\Delta}t$) with an oscilloscope generation position PD(Partial Discharge). the results of GIS internal inspection, the partial discharge of the actual the position of the partial discharge was confirmed with an accuracy of about 82% of positions. Arrival time difference in the most effective manner if the partial discharge of GIS internal occurs by applying the averaging method and TOA(Time of arrival) method, the partial discharge occurs you through the measurement and analysis of PD signal occurs was confirmed in the experiment are presented and diagnostic methods location tracking.

• 한국의료질향상학회지
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• 제9권1호
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• pp.18-32
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• 2002

Background : We developed a model for predicting premature discharge and identifying related factors. Methods : Prediction model was developed by data mining techniques. Basic data were collected from the total discharge data base of a university hospital in Chungnam Province during the period from July 1, 1999 to June 30, 2000. Results : 1. Among 22,873 patients, the number of patients discharged with usual discharge orders were 21,695 or 94.8%. The number of the prematurely discharged patients were 1,178 or 5.2%. 2. The primary reason for unusual discharge was transfer to other hospital. Move to a local hospital closer to their home and burdensome medical expenses were main reasons. 3. Predictability of each model was tested using the top 10 percent of patients with the highest probabilities of premature discharge. The neural network model was chosen as the most appropriate model for predicting prematurely discharged patients. 4. Ten percent of the total number of patients had been selected randomly to test the effectiveness of the neural network model. We have chosen the threshold of the neural network model as 0.7. The number of patients who were expected to discharge prematurely was 312. Among them, 241 had been discharged prematurely (77.2%). Conclusion : Of the several data mining techniques used, the neural network model was the most effective, It can be used to identify and manage the patients who are expected to discharge prematurely.

• 조명전기설비학회논문지
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• 제17권2호
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• pp.17-22
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• 2003

본 연구에서는 mP의 ADS 구동방식에서 초기화기간의 프라이밍 방전 특성에 대하여 실험적인 해석을 하였다. 방전에 의해 축적되는 벽전하의 총량과 벽전하가 축적되는 시간은 프라이밍 펄스의 폭과 무관하다. 또한 과잉 벽전하에 의한 자기소거 방전은 프라이밍 방전에 의한 벽전하량과 관계가 있으며 또한 프라이밍 방전에 의해 생성되는 공간전하와도 관계가 있다. 실험결과 프라이밍 펄스 폭은 8[$\mu\textrm{s}$], 전압은 163[V] 정도가 최적이다. 그리고 자기소거방전을 돕는 공간전하는 파라이밍 방전이 발생한 직후로부터 약 16[$\mu\textrm{s}$] 동안 존재한다. 그러므로 효과적인 초기화 과정을 위한 프라이밍 펄스의 폭은 16[$\mu\textrm{s}$] 이내가 적당하다.