A Study on the Miniaturization of a Protective Device for the Micro Smart Grid Simulator

Yun‑Seok Ko,Kyung Ryu,Min‑Soo Oh,Hyuk‑Sik Yoon 대한전기학회 2020 Journal of Electrical Engineering & Technology Vol.15 No.1

In this paper, a miniaturization methodology of protective devices (PDs) was proposed which plays a key role in evaluating the efectiveness of the developed protection and control algorithms in the micro smart grid simulator. The micro PD was designed to have the rated voltage of 19 V and the breaking current of 20 A, and was designed in a multi-layered hardware structure to satisfy the size of 13×13 cm2 . Also, the micro PD was designed in a multifunctional structure to allow one micro PD to perform all the functions of the circuit breaker, recloser and switches on the micro smart grid simulator to enhance the efciency of development. Finally, it was verifed that the developed micro PD can be applied as protective devices of the micro smart grid simulator by showing that it operates correctly according to the predetermined operation sequence for the test scenarios on the built test system.

八味元이 Streptozotocin 糖尿病에 미치는 影響

김희경,문정숙,박귀영,이다미,이은영,장윤경,황미경 曉星女子大學校 藥學大學 學生會 1988 曉星藥誌 Vol.4 No.-

Streptozotocin was injected to rats and rabbits to induce the experimental diabetes mellitus and Palmiwon was administrated to observe the changes of blood sugar, body weight, and serum Zn, Ca, Mg level in order to find out the effect of diabetic tratment by experimental method. And thus, the result was as follows: 1. The blood sugar level of diabetic rat was decreased after administration of Palmiwon. 2. Body weight of diabetic rat was moderately decreased after administratin of Palmiwon. 3. The less streptozotocin, 30 mg/kg, don't easily induce diabetes mellitus in rabbits. We did not find the changes of blood sugar, serum Zn, Ca, Mg level in the rabbits injected by streptozotocin, 30mg/kg of body weight.

말본의 씨가름으로 본 세가지 학설

김윤경 연세대학교 대학원 1962 延世論叢 Vol.1 No.1

The $quot;analytical$quot; school, led by Chu Si-gyong, separates content words from function words: 너희는 하느님의 온전하심과 같이 너희도 온전하여라.* The scholars of this school includes: Ch'oe Kwang-ok, Yu Kil-chun, Kim Hui-sang, Kim Tu-bong, An Hwak, Yi Kyu-yong, Kim Won-u, Yi P'il-su, Yi Kyu-bang, Kim Chin-ho, Kang Mae, Yi Sang-ch'un, Yi Yong-wol, Yi Wang-ung, Pak Snag-jun, Pak sung-bin, Sim Ui-rin, Hong Ki-mum, and Kim Yun-gyong. Another school represented by Ch'oe Hyon-baem while agreeing with the first school in seoarating content words from function words, treats conjugated variants of a verb, and an adjective, as sord units: 붉은 꽃이 웃는 모양과 같이 곱게 피었다. Known as the $quot;elective$quot; school, this group includes: Pak 'Ch'ang-hae, Kim Kun-su, Pak T'ae-yun, Yi In-mo, chong In-sung, and Yi Hui-sung. A third school of opinion is $quot;synthetic$quot; with Chong Yol-mo as its principal proponent. This school conceives of combinations of content words and function words as word units. i.e., what is considered separate by the other two schools is treated as word units: 검은 소가 푸른 풀을 뜯어 먹습니다. Representative scholars of the synthetic school are: Chang Ha-il, Sung-nyong, and Kim MIn-su. In this thesis I submit evidence in terms of the peculiarities of Korean and its historical development to justify the position of the analytical school. * Solid underlining indicates word units; broken underlining indicates function words.

Periapical multilocular osteoporotic bone marrow defect

Jung, Yun-Hoa,Cho, Bong-Hae,Nah, Kyung-Soo 대한구강악안면방사선학회 2005 Imaging Science in Dentistry Vol.35 No.4

A case of osteoporotic bone marrow defect, which appeared as a well-defined multilocular radiolucency overlapping the roots of mandibular right second molar, was reported. On periapical radiograph, a daughter cyst-like radiolucency was seen at the anterior margin of the lesion making it difficult to rule out odontogenic keratocyst.

식품 기준·규격의 합리적 관리 ·운영에 관한 연구(Ⅰ) : 두부,식용유지, 전분의 분말상 원료에 관하여 Powdered marerials of Tofu, Edible oil, Starch

김희연,홍진환,박혜경,한상배,박종석,이은주,이정성,송경희,최은희,최영준,소경아,성영제,이주엽 식품의약품안전청 2000 식품의약품안전청 연보 Vol.4 No.-

본 연구는 분말상 원료(전분, 대두분)의 저장유통시 품질변화를 건전성과 안전성 측면에서 검토하여 식품의 기준 ·규격 설정f.」 합지적으로 반영하고자 하였다. 전분과 패두분의 이물을 검사하고, 2종 대두분(중국산, 미국산)을 ?0일간 IS'c와 30t에 저장하면서 성상, 수분, 산가, 과산화물가, 지방산 조성,아플라톡신 BB의 생성여부를 분석하였다. 중국산 대두분 30'』 저장군에서 50일 이후 곰팡이가 발생한 것 이외에 모든 시료에서 양호한 성상을 나타내었고, 전분과 대두닥 모든 시료에서 이물은 검출되지 않았다. 산가는 중국산과 미국산 시료간에 편차를 보여 증국산 30"C, 50일 저장시료에서 약 10배끙도 증가하였고, 과산화물가는 저장 90일후 15'E 저장군은 약 2.3배, 30'c 저장군은 3배정도 증가하였다. 대두분의 주요 지방산은 linoleic acidf18. 2), oleic acid(18 : 1), palmitic acid(16 : 0)이었으며, 3개월 저장에 따른 지방산 함량의 변화는 미미하였다. 아플라톡신 B₁은 모든 시료에서 검출되지 않았다. The objective of this study was to investigate auality changes of type raw materials(starch, soy flour) during various storage conditions. Starchflour(source of China, U.S.A) were slfred under two temperature(15'C, 30'c) forSensory evaluation, (o.reign material test, moisture content, acid value, peroxide ualue,composition, aflatorin Bi were analyzed. China soy flour(stor·ed 30'f) was contaminated by fungj on 50 days. Except for soy flour contardnated by fungi, sensory characteristics were not changed and foreign mater;als were notdetected. Acid value of China soy flour(stored at 30'C, 90 days) was about 10 times higherlevel before storage and acid value was more influenced by source(China, USA). Peroxide valuewas in proportion with the storage period slightly. The major fatty acid of soy flour waslinoleic acid(18 . 2), an(3 the change of fatty acid composition was not observed. Aflatoxlrl Blwas not detected.

Organized Stromal Nodule in Cavernous Hemangioma of Liver

Kang, Yun-Kyung 白中央醫療院 2005 仁濟醫學 Vol.26 No.1

목적: 저자는 간의 해면혈관종 내에서 관찰되는 기질화결절의 본질과 발생기전을 병리학적 분석을 통해 알아내고자 하였다. 방법 및 재료: 외과적으로 절제된 해면혈관종 33례에 대한 육안 및 현미경 검사와 함께, Masson's trichrome 염색 등을 시행하였으며 통계학적 분석을 시행하였다. 결과: 33례의 해면혈관종 중 여자가 17례, 남자가 16례였으며, 평균나이는 49.7세였고, 종양의 크기는 평균 7.5cm 였다. 기질화결절이 발견된 예는 26례(78.8%)였고, 1개의 혈관종 당 평균 3.5개의 결절을 가지고 있었으며, 개개 혈관종내에서 가장 큰 결절의 크기는 평균 2.7cm 였다. 이들 결절은 육안적으로 1형: 황색 단면과 불규칙한 변연을 가진 결절 (15례, 57.7%) 이거나, 2형: 회백색의 둥글거나 난원형의 경계가 좋은 점액섬유성 (9례, 34.6%), 또는 3형: 전체 혈관종을 대체하는 단단한 섬유성 결절 (2례, 7.7%) 이었다. 현미경적으로 23례(88.5%) 에서 기질화된 혈전의 결절화 소견이 관찰되었고, 8례(30.8%) 에서는 중심부에 혈관벽의 유리질화된 비후와 이에 의한 내강의 폐쇄를 동반하고 있었으며, 6례(23.1%)에서 출혈성 경색이 관찰되었고, 3례(11.5%) 에서는 비후된 혈관에 의해 결절이 형성되는 양상이었다. 통계적으로 기질화결절이 있었던 종양의 평균 크기는 8.8cm로 기질화결절이 없는 종양의 평균크기 3.0cm에 비해 유의하게 컸다(P<0.01). 결절의 크기는 종양의 크기 및 출혈성 경색의 존재와 유의한 관련성을 보였다(P<0.05). 결절의 육안형에 따라 1형에서 3형으로 가면서 환자의 나이는 증가하였고, 혈관종의 크기는 감소하였으며 이는 통계적으로 유의하였다(P<0.05). 결론: 간의 해면혈관종에 출현하는 기질화결절은 종양의 크기에 비례하여 생기며 주로 혈류의 정체에 의한 혈전에 의해 발생하고 있었으며, 혈관벽의 비후에 의한 내강의 폐쇄와 경색이 이의 형성에 관여하였다. 결절의 병리학적 유형에 따라 환자의 나이 및 종양의 크기와의 관련성이 있어, 이들 결절이 혈관종의 퇴행성 변화와 관련하여 순차적으로 변화할 가능성을 시사하였다.

심근 허혈-재관류 백서 모델에서 mitogen-activated protein kinase 활성화에 대한 α-lipoic acid의 효과

김연경,박은미,최준호,윤경호,유남진,이은미,김남호,정진원,김민선,박병림,오석규 圓光大學校 醫科學硏究所 2006 圓光醫科學 Vol.21 No.1

응급구조사 수습 과정에 대한 고찰

정경임,황정연 대한응급의학회 1993 대한응급의학회지 Vol.4 No.2

We performed this study to evaluate the efficacy of Emergency Medical Technician Education in a designated Facility. This article is the statistical analysis of which the results were obtained from the first trial of Emergency Medical Technician Training program by EMS instructor at Emergency Department, Wallace Memorial Baptist hospital in Pusan from Jun 28 to July 10, 1993. The results were as follow : 1) On sexual distribution of students, male was 57.6% and female was 42.4%. On age distribution, between 30-39 year-old age was 64.7% average age was 33.5 year-old. 2) The geographic distribution of their address was 57.6% in Pusan, the remainders in Kyung-nam, Kyung-buk, and Che-ju in order. 3) The average bed size of the hospital in which they served was 375 beds. 4) The students working in Emergency Room was 42.4%, the other was 57.6%. 5) There were 53.3% students who have the license for nurse-aid and 46.7% registered nurses. 6) The period of students clinical experience was for 101.8 months (about 8 years) in average, and their career in emergency room was for 38.1 months(about 3 years). 7) In the lecture, 91.1% of the students answered that they were content with the lecture qualities or that it was sufficient to learn. In learning the skills, 73.5% of the students replied they were content with the quality to teach the skills or it was sufficient one. Especially male students as a nurse-aid had the better results for the acquisition of the skills than the female registred nurse. 8) 57.6% answered their lecture time was short, 42.1% was proper. Most students were satisfied with the time length of their curriculum, but 26.5% of the students wanted to have more than 12 weeks of education couse. Most of them replied the proper size of the class must be below 20 students per class. 9) They answered the lectural time per a learning item was plenty in 72.0% of the students, not in 28.0%, and skill acquisition time per a learning item was appropriate for 41.4% of the participants, not for 58.6%. They answered the education materials were plenty in 85.3% and not in 11.8%. 10) The written tests showed normal distribution curve through the 4th written test and the results of the final written examination was 98.5 points in average. 11) There was very high correlation(co-efficient : 0.6234) between the 3rd and 4th written test and relatively high correlation between the 3rd and final test and between 4th written test and the skill tests. 12) The female students got the higher points than the male in the written test, but no significant differences of the points in the skill testing according to the participants sex. 13) The registered nurses made the better points in the written test compared to the nurse-aids, but statistically there was no significant difference in the skill testing. To develop better education program for EMT the counterplans on the basis of above results can be established as belows. 1) It will be necessary to ensure professional people who aquired the sufficient training and experience for emergency treatment and to look for legal basis. 2) The sufficient training for EMT is wanted and both starting education and continuing education needs to be focused. 3) The education program for EMT has to be varied according to its charateristics of qualification. 4) the special education program for lecturer for EMT is needed. 5) Each Medical and Education organization should work on the entire education course achieve its standardization of time length, content, methods and level. 6) The positive attitude of government is needed to solve the problems which happen with the current system of Emergency Medicine. It will be necessary to stipulate the items relevant to Emergency Medicine in the law.

억제대 적용지침 개발을 통한 불필요한 억제대 적용율 감소활동

곽경선,김성은,배은경,이은숙,이은혜,최윤정,이윤경 한국의료QA학회 2009 한국의료질향상학회지 Vol.15 No.2

문제: 억제대 적용에 대한구체적 적용지침 없이 의례적으로 억제대를사용함으로 인해 환자들의 신체적 또는 정신적 안전을 위협할 수 있다. 목적: 완전 진정상태 이거나 근력이 약하여 발관능력이 없는 환자에 대한 예방적 적용, 바빠서 환자를볼수 없 는경우, 간호사본인의 판단이 없이 타인의 요구에 따르는등의 불필요한 억제대 적용이 증가하는 원인을 파악하여 중환자실의 특수성에 맞는 억제대 적용및 제거 지침을 마련하고자 한다. 의료기관: 인천광역시에 소재한 의과대학 소속병원의 집중치료실 개선효과: 억제대 적용에 대한중환자실 간호사에게 미치는 영향을 보면 태도 정도 p=0.09(p<0.1), 올바른 수행 능력은 p= 0.005 (p <0.0히로통계적으로유의한것으로 나타났다. 지식 정도 p=0.172(p<0.05) 통계적으로 유의 하지는 않지만 모든항목이 개선 활동전 에 비해 2,3차 개선 활동후에 향상한 것으로 나타났다. 개선활동전에 8.1%였던 간호 기록, 0.7%였던 간호중재, 0%였던 의사처방율이 3차 개선 활동 후 3가지 모두 100% 달성되었다. 이는 억제대 적용율 갑소 및 부적절한 억제대 적용율은 유의하게 감소하였다. 교훈: 중환자실 간호사의 억제대 적용에 대한태도, 지식, 올바른 간호 수행 능력은 지속적으로 재평가 되어지고, 교육내용은좀더 나은 간호제공을 위하여 개발 되어져야 할 것이다. 억제대 적용 기준과 제거 기준을 Check List 하여 객관성의 유지를 위한 개선 활동은계속적으로 Feedback 되어야 할 것이다.

응급구조사 수습 과정에 대한 고찰

정경임,황정연 침례병원 1994 浸禮病院學術誌 Vol.11 No.