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.

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.

국산 및 수입대두의 발효품질의 변화에 관한 연구

허윤행,윤정의,채수규,이수한 서울보건대학 1995 서울보건대학 부설 한국보건과학연구소 논문집 Vol.2 No.1

우수균주로 제조한 코지를 이용하여 대두의 발효에 따른 품질의 특성을 연구하기 위하여 6개 지역에서 수집한 대두와 수입의 것을 시료로 하여 발효경과에 따른 이화학적 분석의 결과는 다음과 같다. 1. 시료(국산) 대두의 화학적 조성에서 조단백질은 40.6∼41.8%(시료1∼3,5,6)이고 조지방은 19.7∼21.3%(시료 1∼3, 5, 6)으로, 시료7(수입대두)의 39%와 19%보다 높았다. 2. 발효 60일의 amino-N는 0.85∼1.19%(시료 1∼3,5,6)와 0.75%(시료 7)으로, 환원당은 16.41∼17.95%(시료 1∼3,5,6)와 16.54%(시료7)로 나타났다. 발효성의 증가는 시료 1∼3, 5, 6 이 시료 7보다 높았고, 시료4(0.71%-15.92%)가 가장 낮았다. 3. 발효 60일에서 국산대두의 아미노산의 함량은 16.51∼20.84g/100g(시료 1∼3, 5, 6)이 16.19g/100g(수입대두의 시료 7)보다 높았고, 시료 4(14.88g/100g)가 가장 낮았다. 4. 60일 발효에서 필수아미노산 함량은 5.76∼4.47g/100g(시료 1∼3, 5, 6)이 4.36g/100g(시료 7)에 비해서 높았고, 시료 4(3.72g/100g), 시료 5(4.34g/100g)이 낮은 수치를 나타냈다. In order to study on the fermentable quality during soybean fermentation with koji made by each three excellent strains which collected from KCCM(Korean Culture Center of Microorganisms) KCTC(Korean Collection For Type Cultures) and Korean soybean and other from imported. The obtained physicochemical result during fermentation with 7 samples for 60days were summerized as follows; 1. For the chemical composition of raw soybean sample the content of crude protein 40.6~41.8%(sample 1∼3, 5, 6) crude fat 19.7~21.3%(sample 1∼3, 5, 6) were higer amount than each other content of 39% and 19% in sample 7, imported. 2. When the fermentation proceeded for 60 days period, the content of amino-N 0.85∼1.19%(S-1∼3, 5, 6) and that is 0.75%(S-7 imported) while reducing sugar content 16.41∼17.95% (S-1∼3, 5. 6) and 16.54%(S-7) amount were higher than that in case of sample 7 and that of sample 4 content(each other 0.71% and 15.92%) was lowest. 3. The content of amino acid for fermentation 60days period, 16.51∼20.84g/100g(S-1∼3. 5, 6) was higher than that 16.19g/100g(S-7) amount and in case of sample 4 (14.88g/100g) was lowest. 4. The content of essential amino acid 5.76∼4.47g/100g(S-1∼3, 6) was higher than 4.36g/100g(S-7) and sample 4(3.72g/100g) and sample 5(4.34g/100g) was lower ammount.

한국사상(韓國思想) 문학(文學) : 18세기~19세기 민족문학의 정체성 연구 -18世紀 실학파의 문학을 중심으로-

윤경수 ( Kyeong Soo Yun ) 한국사상문화학회 2014 韓國思想과 文化 Vol.71 No.-

민족문학이란 한 나라의 민족성이 왕조사이거나 외세의 정치적 권력이나 또는 외국문학의 모방을 배제한 순수한 민족적 특성이 내재한 문학이라 할 수 있다. 여기에 민족문학은 정체성이 함유되니, 민족이 지니고 있는 변하지 않는 본질의 존재가 작가의 개성과 관계되어 민족성이 나타난다. 조선후기인 18세기에 들어와서는 실학파의 시가 등장하였는데 그 중에 연암 박지원과 다산 정약용의 시로 인해 중국 시 모방에서 환골탈태(換骨奪胎)했다. 특히 연암의 제자 4대가들에 의해 한시는 한시다운 조선의 시가 탄생하게 되었고, 다산의 한시는 중국 한시의 시어를 우리말로 바꿔서 지었다. 18세기~19세기에는 실학자의 실사구시(實事求是)의 학풍과 실학파 문인에 의한 영향으로 시조 가사 창극 민요 고소설이 완연히 다른 근대성에 부응하는 작품이 탄생되었다. 특히 18세기~19세기 영정시대는 민족문학의 기점이라고 하는 논문이 건국대학교 명예교수 김일근 교수에 의해 처음으로 발표되었다. 그 후 문학평론가인 김윤식 김현 최일수 등에 의해 근대문학이 기점을 18세게~19세기 영정시대로 주장하는 저술이 발행하여 이들의 학설도 아울러 소개한다. National literature can be identified as a literature containing the pure national identity excluding the influences of a kingdom’s political propagandas, foreign political authority and the copy of foreign literatures. In addition, national literature contains the identity. Therefore, the national characteristics appear with the authors’ personality related to the unchangeable substances of the people. In the eighteenth century of the late Joseon period, Shilhak(Practical learning) poetry appeared. Among them, Yeonam Park Ji-won and Dasan Jeong Yak-yong successfully escaped the copy of Chinese poetry and developed the unique style. Especially, four successors of Yeonam created the style of Koreanized Asian poetry and Dasan wrote his own Asian poetry by translating Chinese expressions into Korean language. As the impact of the Shilhak scholars of the eighteenth and nineteenth century emphasizing practicality of the Neo-Confucianism, the modernity in literature clearly established in poem, Gasa, drama, creative folk songs and novels. Based on this development, Kim Il-geun, an emeritus professor of Kunkuk University, wrote an research article that the Yeongjo and Jeongjo period of Joseon was the turning point of the establishment of national literature. Later on, literary critics like Kim Yun-sik, Kim Hyeon, Choi Il-soo and others adopted this idea and this study introduces this studies.

한국사상(韓國思想)[문학(文學)] : 『임진록』의 작가의식과 민족의식 고찰 ―민족의식의 자각을 중심으로―

윤경수 ( Gyeong Soo Yun ) 한국사상문화학회 2012 韓國思想과 文化 Vol.63 No.-

『임진록』은 16세기 임진전쟁이 반발하기 전 후의 조정과 왜적의 실상을 알려주는 군담소설이다. 당시 당파간의 갈등은 국가의 이익보다 사리사욕이 앞서 자신이 소속하고 있는 당을 먼저 챙겼다. 이율곡은 임진전쟁이 일어 날 것을 예견하여 10만 양병 설을 주장 했지만 당시조정은 아랑곳하지 인했다. 또 풍신수길(도요토미 히데요시)의 국서(國書)에는 왜국이 명나라를 치겠다는 명분을 내세워 조선을 통과할 길을 빌리자고 요청하자는 내용이었지만 거절하였다. 당시 통신서는 서인(西人) 황윤길과 동인 김성일이다. 선조는 이들에게 풍신수길의 인물됨에 대해 물었다. 황윤길은 풍신수길에 대해. 범상하지 인물로 미구에 전쟁이 일어날 것을 선조에게 아뢰었다. 동인(東人) 김성일은 풍신수길에 대해 눈은 미물인 쥐와 같이 생겨 전쟁을 일으킬 위인이 못된다고 보고했다. 좌의정 유성룡이 김성일에게 전쟁이 일어나면 어떻게 하려고 그런 말을 하느냐고 하니, 김성일이 누가 그런 줄 모르고 말한 것은 아니라고 했다. 당시 선조는 신하들 간에 당쟁이 극도로 심화되어 국정의 안위문제를 올바로 파악하지 못하고 동인(東人)들 보고에 따라 전쟁준비에 힘쓰지 안했다. 조정은 당시상황을 무사안일로 대처해 왜적은 그 기회를 틈타 부산에 상륙하여 파죽지세로 서울을 19일 만에 함락시켜 선조는 의주에 몽진하게 되었다. 왜적은 조중연합군(朝中聯合軍)에 의해 조선에서 물러났지만. 7년에 걸치는 임진전쟁의 피해는 16세기를 기준으로 할 때 역사상 미증유의 큰 손실의 참화(慘禍)를 입었다. 임진전쟁이 끝난 후에는 백성들의 의식이 달라졌다. 전쟁 당시에는 조선군이 왜군에게 열세를 면하지 못했지만 이순신이 해전에서 23전 23승과 사명대사의 승군이 왜적을 물리쳤고, 의병이 활약상을 내용으로 통쾌한 승리를 내용으로 한 『임진록』이 출판되어 인구에 회자되었다. 오늘에 전하는 『임진록』의 이본(異本)이 120여종에 이르고 있고, 일제 강점기에는 금서로 지정된 것으로 보면 400년 이상을 애독하여 온 것을 이해할 수 있게 된다. 『임진록』이 쓰인 것은 전쟁이 끝난 직후라고 할 수 있다. 작가들은 전장의 피해가 엄청나게 컸던 것으로 인하여 실의에 빠진 사람들에게 희망과 용기를 돋구어주기 위해 전승을 내용으로 쓴 것이다. 흔히 『임진록』은 일부사람들과 학자에 따라 정신적으로 승리한 픽션을 내용으로 한 복수문학이라 했다. 대체로 한문본은 역사계열인 관계로 허구인 내용도 겸했지만 한글본과 비교할 때 논픽션의 경향을 띄고, 한글본은 허구적인 픽션이 한문본 보다 심한 편이다. 『임진록』은 작가의식과 민족의식이 집단적 무의식을 내용으로 하여 실의에 빠진 사람들에게 희망과 광명을 주는 용기를 북돋아 주었다. 그 저력은 다른 데 있는 것이 아니고 단군신화의 동굴모티프가 수용되어 민족의 정서가 영합된 것으로 볼 수 있다. 임진전쟁은 작가들의 의식과 민족의식을 자각케 하였다. 이로 인해여 『임진록』은 작가들에 의해 420년이 지난 오늘에도 읽혀지고 영상매체로써 활용하게 되어 민족의 정서로 승화시켜 놓았다는 것을. 이해하게 된다. 더구나 작가들은 민족의식의 서린 정서를 집단적 무의식적으로 수용하여 단군신화를 형상화한 것에서 문학적 가치와 의의를 지니게 한다. 필자는 『임진록』을 분석하는 일환으로 서구학설을 인용하고 도표를 삽입 시킨 것을 밝힌다. Imjinrok is a war novel reflecting the condition of 16th century Joseon about the court and Japanese before and after the Japanese invasion. During this time, Joseon officials in the central government were loyal to their factions before the country for their personal interests. For this reason, the court did not pay attention when Yi Yulgok insisted the development of 100,000 military forces based on his prediction of possible Japanese invasion. Toyotomi Hideyoshi``s official letter to grant the passage to attack Ming through Korean land was refused. At this time envoys were Hwang Yun-gil of Western-ban and Kim Seong-il of Eastern-ban. Seonjo asked about the personality of Toyotomi Hideyoshi. Hwang responded that he was not ordinary man and capable of starting a war. On the other hand, Kim told the king Hideyoshi looked like rat and had no ability to start a war. When Left-Councilor Yu Seong-ryong pointed out to Kim, he would be responsible when the war broke. Kim responded that he understood the consequences. At the time of intense conflict among the factions, Seonjo accept the recommendation of Eastern-ban and did not pay attention to the preparation for a possible war. Japan took advantage of the situation and quickly took over Seoul in 19 days after landing in Busan. Seonjo fled to Uiju. Japan retreated by the allied forces of Joseon and Ming, but 7 years of war brought chaos and the casualties were incomparable to the standard of 16th century. After the war, people``s consciousness changed. Although Joseon military forces suffered throughout the war, Admiral Yi Sun-sin owned all 23 naval battles and Samyeong Great Monk``s forces defeated Japanese forces. Also many righteous armies brought outstanding victories against Japanese troops. They became the frame of Imjinrok and it was published and became popular. Today, there are over 120 versions of the book and Japan ban this book during the Japanese occupation. For 400 years people loved to read Imjinrok. It was published just after the war of Japanese invasion. Author(s) tried to provide the hope and courage to the people who suffered from the war. That is why they wrote the stories of victories. Some people including scholars consider Imjinrok is a revenge literature with fictions of victories. Chinese version including some fictions and Korean versions have more fiction in character. Imjinrok encouraged hopeless people for hope and liberation with the authors`` professionalism and national consciousness. In fact the foundation came from the cave-motif of the Dangun Mythology with national consciousness. Japanese Invasion awakened the authors`` professionalism and national consciousness. This is why the book is still wide read and became visual materials as the reflection of national consciousness after 420 years of the publication. Also its materialization of Dangun Mythology gives the literary significance. This study uses Western thoughts and tables to analyze the Imjinrok.

전격성 경과를 취한 만성 호산구성 폐렴 환자 1예

윤호상,진춘조,유광하,이상엽,이수인,정상만,김선두,이순제,이길도,전혜정 건국대학교 의과학연구소 2000 건국의과학학술지 Vol.10 No.-

Chronic eosinophilic pneumonia(CEP) is a rare disease of unknown etiology characterized by chronic infiltration of the lung with eosinophils. It presents with profound systemic symptoms comprising fever, night sweats, weight loss, dyspnea and blood eosinophilia with nonsegmental air-space consolidation confined to the outer third of the lung, the "photographic negative of pulmonary edema". Histopathologic features of chronic eosinophilic pneumonia are intraalveolar and interstitial infiltrations with eosinophils, histiocytes, giant cells, scattered lymphocytes and plasma cells. Glucocorticoid therapy cause prompt resolution of symptoms as well as disappearans of blood eosinophils, elevated serum Ig E levels and the roentgenographic lesions. Infrequent radiographic findings include nodular infiltrates, consolidations, cavitations, atelectasis and pleural effusions. Deaths from CEP although rare, have been reported, but the majorities of CEP have benign courses and do not need a therapy with ventilator. We report a case of chronic eosinophilic pneumonia, which had a sudden course associated with diffuse pneumonic consolidations on the both lung and bilateral pleural effusion.

페니토인을 복용중인 젊은 간질환자에서 발생한 대퇴골 골절

하윤석,김광수 고신대학교 의과대학 2009 고신대학교 의과대학 학술지 Vol.24 No.1

Background and purpose: The use of antiepileptic drugs for a long period is a known risk factor for bone loss and pathological fracture. An increased risk of fractures due to long-term treatment with antiepileptics has been attributed to the alterations in the levels of circulating calcium, calcitropic hormones and high homocysteine levels. The purpose is of this study to report bone fracture in an epileptic patient on chronic use of phenytoin may be associated with lower BMD (bone mineral density) and high plasma concentration of homocysteine. Case: We report a case of a 35 year old young male who had been on phenytoin for 31 years presenting with a pathological femur fracture and frequent complex partial seizures. The plasma homocysteine level was increased as much as 15.93 μmol/L. BMD of the lumbar spine and femur head were low. MRI of the thigh showed fibrodysplasia with cystic degeneration and pathologic fracture in the right proximal femur. Conclusion: A patient on chronic use of phenytoin has alterations in bone metabolism characterized by lower BMD of the lumbar spine and femur and high plasma concentration of homocysteine. An increased risk of bone fracture in an epileptic patient may be associated with osteoporosis and high homocysteine.

토양 과습 조건하에서 수수의 생육특성

윤민헌,권수정,주영환,최주영,우선희 忠北大學校 農業科學硏究所 2021 農業科學硏究 Vol.37 No.2

본문참고

난소암에서 CA125의 임상적 의의

윤병일,김수녕,손인숙,유연웅,최원석 건국대학교 의과학연구소 2000 건국의과학학술지 Vol.10 No.-

The concentration of the tumor marker CA125 in serum from patients with ovarian tumor was measured to define the usefulness of them in differentiating malignant ovarian tumor from benign ovarian mass. In the study of 105 patients with gynecologic neoplasm, of whom 38 were myoma uteri, 42 benign ovarian tumor, and 25 ovarian cancer, the level of serum CA125 were measured. CA125 was greater than 35 U/ml in 2.6% of myoma uteri, in 2.4% of benign ovarian tumors and 68.0% of ovarian cancers. Using a cut-off level of 35 U/ml, the results can be characterized by a 68.0% of sensitivity and 97.5% of specificity in detecting an ovarian cancer. Among 25 patients with ovarian cancer, 11 of 14 (78.6%) patients with serous cystadenocarcinoma, 4 of 6 (66.7%) patients with mucinous cystadenocarcinoma and 2 of 5 (40.0%) patients with endometrioid carcinoma had CA125 values greater than 35 U/ml. In relation to a higher tumor stage, there was an increasing incidence of elevated levels of CA125. As a result, it is likely that the measurement of CA125 is useful for early diagnosis of ovarian cancer.

방광 크롬친화세포종과 동반된 배뇨후 벼락두통

하윤석,강성진,허소영,이지현,김민정,김종국,김광수 고신대학교 의과대학 2009 고신대학교 의과대학 학술지 Vol.24 No.1

Thunderclap headache is a hyperacute, severe headache that is so named because the pain strikes suddenly and severely, and is sometimes a sign of a medical emergency. We report a case of pheochromocytoma in the urinary bladder in a 48-year-old woman who presented with recurrent thunderclap headache after voiding and exercise. So we think thunderclap headache during or immediately after micturition may be an important diagnostic clue of bladder pheochromocytoma.