• Journal of Korean Medical classics
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• v.18 no.3 s.30
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• pp.95-105
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• 2005

통과대설기적외과의적급기내용적연구(通過對薛己的外科醫籍及其內容的硏究), 득출이하결론(得出以下結論): 1. 설기소저외과의적중최조편찬적시(薛己所著外科醫籍中最早編纂的時)${\lceil}$외과심법(外科心法)${\lrcorner}$(1528년(年)), 지후편찬적차서시(之後編纂的次序是)${\ulcorner}$외과발휘(外科發揮)${\lrcorner}$(1528년(年)), ${\ulcorner}$외과경험방(外科經驗方)${\lrcorner}$(1528년(年)), ${\ulcorner}$외과추요(外科樞要)${\lrcorner}$(1545년(年)), ${\ulcorner}$여양기요${\lrcorner}$(1554년(年)). 2. 설기개변이왕양의수증처방적악습(薛己改變以往瘍醫隨症處方的惡習), 파변증론치인용도료외과임상상(把辨證論治引用到了外科臨床上). 3. 재망진방면불근중시료국부적진찰(在望診方面不僅重視了局部的診察), 이차중시관찰전신적상태(而且重視觀察全身的狀態); 환중시료사진합참(還重視了四診合參), 우기중시료망진화절진(尤其重視了望診和切診). 4. 재치료방면령활지운용료소통(在治療方面靈活地運用了疏通), 발산(發散). 화해(和解), 보탁(補托), 온보등방법(溫補等方法), 이차환사용료침(而且還使用了針), 폄, 구(灸), 위등외치법(慰等外治法). 5. 설기소저적(薛己所著的)${\ulcorner}$여양기요${\lrcorner}$시일부조기간행적미풍병전저(是一部早期刊行的麻風病專著).

• Computational Structural Engineering
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• v.3 no.1
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• pp.83-95
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• 1990

Many structural optimization problems are solved by numerical algorithms since these are complicated and nonlinear. To provide a wider base and popular it to structual design optimization, reliable, accurate and superlinearly convergent nonlinear programming algorithm with active-set strategy have been developed. One of these is RQP(recursive quadratic programming method). This algorithm has several parameters and its performance is influenced by variations of these key parameters. Therefore, an RQP algorithm is selected to enhance its numerical performances by choosing proper parameters. The paper persents these influences on its numerical performance. For comparison of performances, a structural design software for minimum weight of truss subjected to displacement, stress, and lower and upper bounds on design variables is also implemented.

• School Mathematics
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• v.9 no.1
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• pp.119-139
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• 2007

The purpose of this study is to analyze students' misconception in the teaming of the conic sections with the cognitive and pedagogical point of view. The conics sections is very important concept in the high school geometry. High school students approach the conic sections only with algebraic perspective or analytic geometry perspective. So they have various misconception in the conic sections. To achieve the purpose of this study, the research on the following questions is conducted: First, what types of misconceptions do the students have in the loaming of conic sections? Second, what types of errors appear in the problem-solving process related to the conic sections? With the preliminary research, the testing worksheet and the student interviews, the cause of error and the misconception of conic sections were analyzed: First, students lacked the experience in the constructing and manipulating of the conic sections. Second, students didn't link the process of constructing and the application of conic sections with the equation of tangent line of the conic sections. The conclusion of this study ls: First, students should have the experience to manipulate and construct the conic sections to understand mathematical formula instead of rote memorization. Second, as the process of mathematising about the conic sections, students should use the dynamic geometry and the process of constructing in learning conic sections. And the process of constructing should be linked with the equation of tangent line of the conic sections. Third, the mathematical misconception is not the conception to be corrected but the basic conception to be developed toward the precise one.

• Journal of the Korea Computer Graphics Society
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• v.19 no.1
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• pp.21-25
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• 2013

In this paper, we consider a physics-based 2D flight simulation game where users can easily control realistic flight of a vehicle equipped with two thrusters that allow vertical takeoff and vertical landing. The flight vehicle can be manipulated by directly controlling the thrusting force at each thruster using a pair of analog input devices such as joysticks. However, it might require too much practice to make aerobatic flying solely with this kind of control. We propose a set of fly-by-wire methods that provide easy-to-use, intuitive control of a VTVL vehicle. Based on PD controllers, the proposed methods allow users to specify the velocity or position of the vehicle directly. Furthermore, they are easy to understand and simple to implement. We expect that the proposed vehicle model and control mechanism could be used in various 2D games.

• Korean Journal of Culture and Social Issue
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• v.22 no.3
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• pp.363-385
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• 2016

As the role of volunteers in disaster settings has been growing overtime, the present study was aimed to understand voluntary disaster workers with their burnout pattern and examine group differences in their secondary traumatic stress and world assumptions. Total of 70 voluntary workers who served for recovery from Sewol ferry disaster participated in this study. Using cluster analysis, we identified three distinct cluster groups on the basis of three burnout subscale scores(emotional exhaustion, personal accomplishment, depersonalization): Group 1 was characterized by the highest score on personal accomplishment and low levels of emotional exhaustion and depersonalization. Group 2 scored the highest on emotional exhaustion and depersonalization, and relatively high on personal accomplishment. Group 3 was characterized by the lowest scores on three subscales. Results from χ² tests showed that groups differed significantly on types and the period of support activities. Analysis of variance was conducted to identify further group differences. The results indicated that Group 2 scored the highest on secondary traumatic stress, while Group 1 scored the highest on worthiness of the self. Finally, the clinical implications and limitations of these results as well as suggestions for further research were discussed.

• The Journal of Korean Academy of Sensory Integration
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• v.21 no.3
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• pp.13-26
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• 2023

Objective : The purpose of this study is to examine the impact of maternal risk factors for adverse childhood experiences on children's emotional and physical abuse and neglect as well as parenting stress. Methods : This is a secondary data analysis study utilizing raw data from the 2017 National Survey of Child and Family Life Experiences. A total of 1,937 mothers with at least one adverse childhood experience were categorized into low-risk (1-3), moderate-risk (4-6), and high-risk (7 or more) groups to examine the differences in children's emotional and physical abuse and neglect and parenting stress and identify the influencing factors through regression analysis. Results : Maternal adverse childhood experiences were 50.4% in the low-risk group, 39.8% in the medium-risk group, and 9.7% in the high-risk group. Child emotional abuse was 45.0%, child physical abuse was 13.2%, child neglect was 3.5%, and parenting stress was 2.13 (±0.61) on average. Adverse childhood experiences were significantly more likely to be associated with emotional and physical abuse, neglect, and parenting stress in the medium- and high-risk groups than in the low-risk group. The regression analysis showed that the model explained 35% of child emotional abuse, 25% of child physical abuse, 19% of child neglect, and 16% of parenting stress. Conclusion : The higher the risk of adverse childhood experiences of parents, the more their children experience emotional abuse, physical abuse, child neglect, and parenting stress.

• Tuberculosis and Respiratory Diseases
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• v.58 no.1
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• pp.73-77
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• 2005

Lemierre syndrome is characterized by an acute oropharyngeal infection with secondary septic thrombophlebitis of the internal jugular vein and frequent metastatic infections such as septic pulmonary emboli and suppurative arthritis. In the preantibiotic era, this condition generally had a fatal outcome. The presentation is so distinctive that a clinical diagnosis is possible in most cases, and a cure is expected with the appropriate therapy in the majority of patients. We present a case report of Lemierre syndrome with a review of the relevant literature.

• Journal of Korean Medical classics
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• v.21 no.2
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• pp.193-200
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• 2008

재전통의학이론상일반운용'토법'적주요목표이병인화병위양종분류인식하거적(在전統의학理논上一般운用'吐法'的主要目표以病因和病位양종分류인식下去的). 관우병인의미착직접토출격상(관于病因意味着직接吐出膈上), 위완적담음숙식지인착오적섭식지유독지물(胃脘的痰음宿食지因錯오的섭食之有毒之物), 관우병위가이설(관于病位可以설), '기고자(其高者), 인이월지'적'기고자'시지상완(因而越之'的'其高者'是指上脘), 격상적유형실사(膈上的有形실邪). 장자화재 "유문사친"상설"일토지중(장子和在"儒門事親"上설"一吐之中), 변태무궁(변태无궁), 루용루험(屢用屢험), 이지불의(以지不疑)", 몰구완격담식혹비교고적병위(沒拘脘膈痰食或比較高的病位). 이차통과흔다임상경험(而且通과흔多임床경험), '토법(吐法)'능취득료타개현부이발산피부적청양(能取得了打개玄府而발散皮부的淸양), 타개하초(打개下焦), 천착장중적옹체(穿着腸中的壅滯), 통조수도(通조水道), 단절수지상원(단絶水之上源), 접통울체(接通울滯), 피상행진기(被上行진기), 접통관객(接通관객), 교류상하적(交流上下的) 음양(陰陽), 교제심신(交제心신), 조절병교제수화(조절병交제水火), 창달기기(창달기기), 접통경락혈맥등적성효(接通경絡血맥等的成效). 인차타확장료'토법'적치료범위(因此他擴장了'吐法'的治료范圍). 본논문관우장씨적'토법'(本논文관于장氏的'吐法'), 개념(槪念), 방법급종류(方法及종류), 규율(규律), 통토적치료기전(通吐的治료기전), 금기(禁忌), 조선적방면래진행정리(조宣的方面래진行整理), 보고(報告).

• Journal of Gifted/Talented Education
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• v.21 no.2
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• pp.269-286
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• 2011

The purpose of this thesis is to examine difficulties students face in the inquiry activities of quadratic surface throughout mathematically gifted students' analogical inference and the influence of Cabri 3D in students' inquiry activities. For this examination, students' inquiry activities were observed, data of inferring quadratic surface process was analyzed, and students were interviewed in the middle of and at the end of their activities. The result of this thesis is as following: First, students had difficulties to come up with quadratic surfaced graph in the inquiry activity of quadratic surface and express the standard type equation. Secondly, students had difficulties confirming the process of inferred quadratic surface. Especially, students struggled finding out the difference between the inferred quadratic surface and the existing quadratic surface and the cause of it. Thirdly, applying Cabri 3D helped students to think of quadratic surface graph, however, since it could not express the quadratic surface graph in a perfect form, it is hard to say that Cabri 3D is helpful in the process of confirming students' inferred quadratic surface.

• Journal of Convergence for Information Technology
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• v.11 no.8
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• pp.42-52
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• 2021

This study was conducted to identify the influence of the discrimination experienced in daily life and social isolation on depression among older adults living in the community. This study was a secondary analysis of the data of 2017 Living Profiles of Older Adults Survey. The participants was a representative sample among the older adults 65 years and older. Data from 10,041 older adults were analyzed for this study. Hierarchical logistic regression analyses were used. When the discrimination experiences was added in model 1, the likelihood of being depressed was 1.95(1.60-2.36) times higher for those who experienced discrimination comparing with those who didn't experienced discrimination. When the social isolation was added in model 2, the likelihood of being depressed was 1.89(1.55-2.30) times higher in those who experienced discrimination. In addition, as the number of close friends, neighbors, and acquaintances decreased by one, the likelihood of being depressed increased by 1.14 times. Those who were isolated from family, friends, neighbors and acquaintances were 3.90 times more likely to be depressed. Therefore, social efforts are needed to reduce the experience of discrimination. Maintaining a social network or creating a new network will contribute to lowering the level of depression in older adults who have experienced discrimination.