과전류 경고 회로용 변류기의 자기포화 특성을 고려한 최적 설계

김선종,박의종,김용재,Kim, Sun-Jong,Park, Eui-Jong,Kim, Yong-Jae 한국전자통신학회 2015 한국전자통신학회 논문지 Vol.10 No.7

본 논문은 과전류 경고회로의 신호를 나타내는 변류기를 설계하기 위해 관통형 변류기의 특성을 분석하고 손실을 고려한 최적 설계를 수행하였다. 관통형 변류기 코어의 크기는 2차측의 코일 턴수에 따라 결정된다. 우리는 코어에 코일을 감는 턴수에 따라 다르게 나타나는 전류 파형을 분석하였으며, 변류기 코어의 자속포화에 의한 비정현적인 파형을 개선하고자 2차측 코일 턴수와 부하저항과의 관계를 확인하였다. 또 코어의 외경은 유지하면서 내경 및 적층을 변화시켜 정밀도 개선 및 최적설계를 하였고, 이를 통하여 과전류 경고회로의 동작에 필요한 전류 값을 도출하였다. In this paper, we analyzed characteristic of window type current transformer and we performed the optimal design consider to the loss; in order to design the current transformer figured signal of overcurrent warning circuit. The core size of window type current transformer was determined by the secondary coil turns. We analyzed current waveform, which is appeared by the number of coil turns on the core, we made sure the relation of secondary coil turns and load resistance in order to improve the non-sinusoidal wave by the flux saturation of the current transformer core. Additionally, we did improvement of the accuracy and optimal design through the transformation of the inner diameter and the stack length when the outer diameter of core is sustaining.

고분자 사슬연장제를 이용한 폴리유산 / 폴리부틸렌 아디페이트테레프탈레이트 복합필름의 제조 및 특성 분석

김선종,조현승,이재환,유명제,엄유준,박수일,Kim, Sun-jong,Cho, Hyun-seung,Lee, Jae-hwan,You, Myung-je,Um, Yoo-Jun,Park, Su-il 한국포장학회 2017 한국포장학회지 Vol.23 No.2

고분자 사슬연장제(Chain extender)를 적정 함량별로 넣어 PLA와 PBAT 생분해성 복합 필름을 제조하였으며 제조된 필름의 기계적 특성 및 열적 특성을 분석하였다. 고분자 사슬연장제인 $Joncryl^{(R)}$과 헥사메틸렌 디이시소시아네이트(HDI, Hexamethylene Diisocyanate)를 각각 단일로 넣었을 경우, 고분자 사슬연장제의 함량 증가에 따라 인장강도(Tensile strength)가 함량에 비례하여 소폭 증가하는 영향을 주는 것으로 나타났으나, 연신율에 있어서는 비례적인 차이를 나타내지 않았다. 하지만 두 종류의 사슬연장제를 적정비율로 같이 넣어 압출한 결과 인장강도가 40 MPa에 이르는 것으로 나타나 대조구의 인장강도 25 MPa보다 약 15 MPa 정도 증가하여 강도개선의 효과가 있는것으로 나타났으며 연신율의 경우 대조구보다 개선된 것으로 나타났다. Poly lactic acid(PLA) and poly butylene adipate-co-terephthalate(PBAT) film was prepared using a twin extruder. PLA (25%) and PBAT (75%) were mixed with various ratio of chain extenders, such as $Joncryl^{(R)}$ and hexamethylene diisocyanate(HDI) to improve the mechanical and thermal properties of produced bio composite films. Tensile strengths of films were steadily increased with increasing ratio of chain extender. The tensile strength of control films was about 25 MPa, and the tensile strength of films with combined chain extenders was above 40 MPa. The films with $Joncryl^{(R)}$ resulted in improved tensile strength, while the film with HDI alone showed improved percent elongation at break. By adding chain extenders into PLA/PBAT resin, the cold crystallization temperature (Tcc) and decomposition temperature (Td) of the produced bio composite films increased. It revealed that the addition of two types of chain extenders was efficient way to get PLA/PBAT film with improved strength and elongation.

전신질환자 구강외과 소수술시의 주의사항 -골다공증약 복용환자 수술 포함-

김선종,김명래,Kim, Sun-Jong,Kim, Myung-Rae 대한치과의사협회 2010 대한치과의사협회지 Vol.48 No.7

Dental surgical procedures are potentially stress-inducing to not only patients but clinicians especially in case of medically compromised patients. The body response to dental stress involves the cardiovascular, respiratory and the endocrine system. To minimize the stress to the medically compromised patients, the stress reduction protocols should be established. The protocols include (1) Recognize the patient's degree of medical risk (2) Medical consultation before dental therapy (3) Schedule the patient's appointment in the morning (4) Monitor and record preoperative, perioperative and postoperative vital signs (5) Intra-venous sedation during surgical procedures (6) Adequate pain control during therapy (7) Short length of appointment time (8) Contact the patients on the same day. Two cases of Bisphosphonate-related osteonecrosis of the jaws were analyzed. There were 2 women, and the mean age was 70 years (range, 64~74 years). both are medically compromised, with steroids. Both patients were taking an oral bisphosphonate for several years. BRONJ is defined as an area of exposed bone of more than 8 weeks - duration in a patient taking a bisphosphonate for bone disease. Bisphosphonates have been widely prescribed over the last decade for a range of bone diseases, mainly intravenously for bone cancers and orally for osteoporosis. Although it is still controversial as to precisely how the bisphosphonates work, generally it is accepted that they prevent osteoclast action, with consequent cessation of osteoblast activity, so that the bone turnover is markedly reduced or ceased. The aim of this study is to informed the clinicians how to prepare and recognize in case of the BRONJ with medically compromised patients.

섬유강화형 복합레진전장관의 변연적합도 및 변연누출에 관한 연구

김선종,신상완,한중석,서규원,Kim, Sun-Jong,Shin, Sang-Wan,Han, Jung-Suk,Suh, Kyu-Won 대한치과보철학회 2000 대한치과보철학회지 Vol.38 No.5

As Fiber-reinforced composite restorations cannot be made without leaving a marginal gap, luting cements play a pivotal role in sealing the margins as a prevention against margnal leakage. A recently introduced adhesive resin cement system is claimed to adhere chemically, as well as mechanically, to tooth substances, dental alloys and porcelain. But when considering the clinical variation conventional cementation using Zinc Phosphate and Glass-Ionomer can be requested. A vitro study was undertaken to compare microleakage and marginal fitness of Fiber-reinforced composite crowns(Targis/Vectris) depending upon luting cements. Fifty non-carious human premolar teeth were randomly divided into five experimental groups of 10 teeth each and luted with five luting cements. ($Bistite\;II^(R),\;Super-bond^(R),\;Variolink\;II^(R)$), Zinc phosphate and Glass-Ionomer cement) After 24 hours of being luted, all specimens were thermocycled 300 times through water bath of $5^{\circ}C\;and\;55^{\circ}C$ in each bath, then the quality of the marginal fitness was measured by the Digital Microscope and marginal leakage was characterized using Dye Penetration technique and the Digital Microscope The results were as follows : 1. The mean values of marginal fit were Bistite II($46.78{\mu}m$), Variolink II($56.25{\mu}m$), Super-Bond($56.78{\mu}m$), Glass-Ionomer($99.21{\mu}m$), Zinc Phosphate($109.49{\mu}m$) indicated a statistically significant difference at p<0.001. 2. The mean microleakage values of tooth-cement interface, restoration-cement interface were increased in the order of Variolink II, Bistite II, Super-Bond, Glass-Ionomer, Zinc Phosphate 3. Crowns luted with resin cement (Bistite II, Super-Bond, Variolink II, etc) exhibited less marginal gap and marginal leakage than those luted with conventional Glass-Ionomer and Zinc Phosphate cement. 4. The results indicated that all five luting systems yielded comparable and acceptable marginal fit.

표면처리가 다른 5종 임플랜트의 안정성에 관한 연구

김선종,신상완,정성민,류재준,Kim Sun-Jong,Shin Sang-Wan,Jung Sung-Min,Ryu Jae-Jun 대한치과보철학회 2005 대한치과보철학회지 Vol.43 No.1

Purpose. The purpose of this study was to compare the effects of various surface treatments by measuring resonance frequency and histomorphometric analyses. Material and methods. In 5 adult dogs, the mandibular premolar were extracted. Six months later, 30 screw titanium implants (Dentium Co., Seoul, Korea) 6mm in length and 3.4mm in diameter, were placed in the mandibles of 5 dogs. Implants were divided into five groups following to surface treatment methods ; Group 1 is machined controls, Group 2 is sandblasted with large grit and acid-etched (SLA), Group 3 is anodized (Autoelectric Co., Korea, 660Hz, Duty10), Group 4 is hydroxyapatite(HA) coated by ion beam assisted deposition(E-beam), Group 5 is hydroxyapatite(HA) coated with Sol-gel coating process. Resonance frequency was measured implant placement immediately, and 3, 6 weeks and 10 weeks of healing perods. With the animal subject's sacrifice 10 weeks after implantation, implants were removed on bloc and histologic and computer-based histomorphometric analyses were performed. Histomorphometric analysis involved quantification of the entire bone to metal contact around the implants. Statistical analyses were performed using the SPSS for Windows (ver. 9.0 SPSS Inc.) Statistical differences were considered significant at P<0.05. Results. The results were as follows : 1) In five groups, mean value of resonance frequency analysis(RFA) were highest in group 5 (Sol-gel implant) at implantation and those of group 4 (E-beam)was highest at 10 weeks . but there was no correlation between surface treatments and RFA. 2) In all surface treatment groups, the RFA values of implants decreased until 3 weeks and increased to 10 weeks. 3) The percentage of direct bone-to-implant contact (BIC) had statistical significance between five groups in cancellous bone, (P<0.05) the percentage of bone density inside the thread had no statistical significance between five groups. (P>0.05) 4) There was a significant difference between cortical bone and cancellous bone in BIC. (P<0.05) and bone density. (P<0.05) 5) There was a correlation between the RFA value of implants at 10 weeks and BIC in cancellous bone, and between the RFA value of implants at 10 weeks and bone density in cortical bone. (P<0.05). Conclusions. These results indicate that surface treatment does not affect the implant stability in case of good bone quality.

향기요법이 통증을 주소증으로 입원한 환자의 수면장애에 미치는 영향

박수곤 ( Soo Gon Park ),양미성 ( Mi Sung Yang ),김오영 ( Oh Young Kim ),조희근 ( Hee Guen Jo ),최진봉 ( Jin Bong Choi ),김선종 ( Sun Jong Kim ),설재욱 ( Jae Uk Sul ) 한방재활의학과학회 2010 한방재활의학과학회지 Vol.20 No.4

Objectives :The purpose of this study is to investigate the effects of aroma therapy on sleep disorder patients with musculoskeletal pain. Methods :The 44 patients were divided into 2 groups: Experimental group(Exp. group) was treated with aroma therapy and control group was treated except aroma therapy. To evaluate the efficiency of aroma therapy, the Korean sleep scale A(Jin-Joo Oh, Mi-Soon Song, Sin-Mi Kim. 1998) and visual analogue scale(VAS) were applied before treatment and after 5 days treatment. Results :1. The Experimental group has improved statistical significance in sleep disorder score as compare to the control group. 2. The improvement of sleep disorder score of Exp.group has difference according to impression. 3. The improvement of sleep disorder has an effect on pain decrease. Conclusions :Aroma therapy has effects of improvement on sleep disorder with musculoskeletal pain.

성결 법전의 땅

김선종(Sun-Jong Kim) 한국신학정보연구원 2011 Canon&Culture Vol.5 No.1

지금까지 구약신학에서 땅의 개념과 기능에 대한 연구는 주로 신명기 및 신명기 역사서를 중심으로 이루어져 왔다. 우리가 성결 법전에 나타난 땅을 이 법전의 신학적 틀 안에서 이해할 때, 신명기와는 사뭇 다른 모습을 가지고 있는 것을 발견하게 된다. 신명기 및 신명기 역사서에서 땅은 이스라엘 백성이 정복해야 할 대상이라면, 반대로 성결 법전에서 땅은 스스로 거주민을 받아들이고 내어 쫓는다. 독자들은 이처럼 이스라엘 땅의 개념에 대해 존재하는 명백한 차이에 직면하여 전통적인 역사비평 가설에 대해 재고할 것을 요청받는다. 최근 성결 법전의 땅에 대한 연구에서, 땅은 하나님과 인간 사이의 매개물로서, 인격화되어 상징적인 의미를 갖는 것으로 여겨졌다. 그러나 우리가 성결 법전 본문에 나타난 땅이 행하는 기능을 살펴볼 때, 이 법전의 저자는 땅을 독립된 인격체로서 이스라엘 역사를 이끌어가는 주체로 드러내고 있다. 나지르로서, 또한 하나님의 성소로서 이스라엘 땅은 자신이 창조된 당시 부여받은 정결함을 유지해야 하며, 그렇지 않을 경우 하나님의 벌을 받고 자신의 거주민을 내어 쫓음으로 황폐화 된다. 이러한 성결 법전에 나타난 땅의 개념은 우선 이 법전을 낳은 제사장 문서의 창조신학에 근거하고 있다. 동시에 생명을 지니고 더 나아가 다른 생명을 잉태하는 어머니로서의 땅은 이스라엘 백성의 민중 신앙의 중요한 단면을 보여준다. 땅이 생명을 지니고 있고 하나의 독립된 인격을 지니고 있다는 성결 법전의 언설을 단지 문학적이고 상징적인 표현 양식으로 이해할 때, 우리는 또다시 인간 중심적으로 성서를 해석하는 우를 범하게 된다. 성결 법전이 보여주는 땅에 대한 신학은 하나님의 피조세계를 지배하고 이용하려는 현대인들에게 땅이 지니고 있는 생명의 권리와 땅에 대한 경외를 회복할 것을 요청한다. Until now in the Old Testament theology, the study on the concept and function of the land has been made mainly in the domain of Deuteronomy and the Deuteronomistic Historiography. When we understand the land in the framework of the Holiness Code, we see that there are quite different aspects between the concept of the land in the Holiness Code and that of Deuteronomy. While Deuteronomy and the Deuteronomistic Historiography define the land as the object of Israel’s conquest, in the Holiness Code it is the land that accepts and expels the people. This obvious difference that exists between two law codes requires the reader to reconsider the hypothesis of the traditional historical criticism. Recent studies on the land of the Holiness Code interpret the land as a mediator between God and humankind and as a personified being having symbolic meaning. However, the examination on the function of the land in the Holiness Code reveals that the author of this law code describes the land as an independent person and a subject which drives the history of Israel. As Nazirite and as the sanctuary of God, the land of Israel should maintain its purity given at the time of creation. If not, it is punished by its Creator and devastated by spewing its residents. The concept of the land in the Holiness Code is based upon the creation theology of the priestly code that has produced the first law code. At the same time, the aspect of the land as the mother who bears the life and conceives another lives reflects the popular faith of Israelite people. When we consider the discourse of the Holiness Code on the land having a life and person as a simply literary and symbolic expression, we make a mistake to interpret the biblical passages anthropocentrically. The theology of the land in the Holiness Code demands modern people, who want to dominate and exploit the created world by God, to restore the right of the land and to respect other creatures.

소규모 웹 응용을 위한 클라이언트 측 자바스크립트 프레임워크의 구축

김선종(Sun-Jong Kim),김희천(Hee-Chern Kim) 한국정보기술학회 2016 한국정보기술학회논문지 Vol.14 No.3

When increasing user requests for web service cause the lack of server resources, it is difficult for the server to provide services. However, if small IT companies install more server computers to solve this situation, they will face not only additional server costs but also license problem for using web application server. So we need a new effective method to handle more user requests on existing servers with restricted resources. In this paper, we suggest and implement a web-based application system architecture deploying a JavaScript framework on client-side browser which replaces the function of a web application server. We conduct experiments for performance evaluation to show the usefulness of our result compared with a general server-based counterpart. The experimental results show that our implementation can serve more concurrent users under the same server condition without speed loss from the user’s point of view.

성결법전의 땅

김선종(Sun-Jong Kim) 한국신학정보연구원 2010 성서학 학술세미나 Vol.2012 No.10

지금까지 구약신학에서 땅의 개념과 기능에 대한 연구는 주로 신명기 및 신명기 역사서를 중심으로 이루어져 왔다. 우리가 성결법전에 나타난 땅을 이 법전의 신학적 틀 안에서 이해할때, 신명기와는 사뭇 다른 모습을 가지고 있는 것을 발견하게 된다. 신명기 및 신명기 역사서에서 땅은 이스라엘 백성이 정복해야 할 대상이라면, 반대로 성결법전에서 땅은 스스로 거주민을 받아들이고 내어 쫓는다. 독자들은 이처럼 이스라엘 땅의 개념에 대해 존재하는 명백한 차이에 직면하여 전통적인 역사비평 가설에 대해 재고할 것을 요청받는다. 최근 성결법전의 땅에 대한 연구에서, 땅은 하나님과 인간 사이의 매개물로서, 인격화되어 상징적인 의미를 갖는 것으로 여겨졌다. 그러나, 우리가 성결법전 본문에 나타난 땅이 행하는 기능을 살펴볼 때, 이 법전의 저자는 땅을 독립된 인격체로서 이스라엘 역사를 이끌어 가는 주체로 드러내고 있다. 나지르로서, 또한 하나님의 성소로서 이스라엘 땅은 자신이 창조된 당시 부여받은 정결함을 유지해야 하며, 그렇지 않을 경우 하나님의 벌을 받고 자신의 거주민을 내어 쫓음으로 황폐화 된다. 이러한 성결법전에 나타난 땅의 개념은 우선 이 법전을 낳은 제사장 문서의 창조신학에 근거하고 있다. 동시에 생명을 지니고 더 나아가 다른 생명을 잉태하는 어머니로서의 땅은 이스라엘 백성의 민중신앙의 중요한 단면을 보여준다. 땅이 생명을 지니고 있고 하나의 독립된 인격을 지니고 있다는 성결법전의 언설을 단지 문학적이고 상징적인 표현양식으로 이해할 때, 우리는 또다시 인간중심적으로 성서를 해석하는 우를 범하게 된다. 성결법전이 보여주는 땅에 대한 신학은 하나님의 피조세계를 지배하고 이용하려는 현대인들에게 땅이 지니고 있는 생명의 권리와 땅에 대한 경외를 회복할 것을 요청한다. Until now in the Old Testament theology, the study on the concept and function of the land has been made mainly in the domain of Deuteronomy and the Deuteronomistic Historiography. When we understand the land in the framework of the Holiness Code, we see that there are quite different aspects between the concept of the land in the Holiness Code and that of Deuteronomy. While Deuteronomy and the Deuteronomistic Historiography define the land as the object of Israel’s conquest, in the Holiness Code it is the land that accepts and expels the people. This obvious difference that exists between two law codes requires the reader to reconsider the hypothesis of the traditional historical criticism. Recent studies on the land of the Holiness Code interpret the land as a mediator between God and humankind and as a personified being having symbolic meaning. However, the examination on the function of the land in the Holiness Code reveals that the author of this law code describes the land as an independent person and a subject which drives the history of Israel. As Nazirite and as the sanctuary of God, the land of Israel should maintain its purity given at the time of creation. If not, it is punished by its Creator and devastated by spewing its residents. The concept of the land in the Holiness Code is based upon the creation theology of the priestly code that has produced the first law code. At the same time, the aspect of the land as the mother who bears the life and conceives another lives reflects the popular faith of Israelite people. When we consider the discourse of the Holiness Code on the land having a life and person as a simply literary and symbolic expression, we make a mistake to interpret the biblical passages anthropocentrically. The theology of the land in the Holiness Code demands modern people, who want to dominate and exploit the created world by God, to restore the right of the land and to respect other creatures.

Bible: Les récits fondateurs : (S. Bloch, F. Boyer, Montrouge: Bayard, 2016)

김선종(Sun-Jong Kim) 대한성서공회 2021 성경원문연구 Vol.- No.48

Published in 2016 by Bayard Culture, Bible: les récits fondateurs is an illustrated Bible rewritten by a general writer and designed by an illustrator. This Bible comes from the ambition to create a Bible that readers have never seen, read, or heard before. This Bible mainly contains illustrations with minimal writing. The greatest feature of this Bible is to show the process of producing the website and to introduce questions and answers by experts. As a media Bible, Bible: les récits fondateurs aims to promote the biblical message from children to adults and from beginners to believers. We live in a multimedia age today. Even without the fourth industrial revolution mentioned, the civilization will change rapidly in the future. The existing literal Bible would not be able to excite young people who are changing too quickly. It would be difficult to satisfy them. In fact, the media Bible, produced in an illustration and video form, is not a new Bible made in a new culture. Already for early Christians, the Bible was not just a written Bible, but a Bible that was made to be listened to in narrations and looked at in paintings. In this regard, the media Bible restores the ideology of the time when the Bible was produced. Therefore, it seems that Bible: les récits fondateurs comes from not only this motivation but also a deeper theological dimension. Faith is not just an intellectual acknowledgment or confession. Through the healing of emotions, a complete person must be created. In order to produce a media Bible, we need the infrastructure of writers, illustrators, voice actors, broadcasters, animators, and artists. And it should be based on healthy commentaries from biblical scholars. This work is possible when the Christian culture is established to some extent. Religion should not remain as a ghetto within the walls of religious people. It is necessary to communicate with the secular culture to make the biblical message be delivered to the general public more easily.