ADC12종 합금 다이캐스팅 주물의 응고 조직 및 기계적 성질에 미치는 개량 첨가제의 영향

김윤기 국민대학교 1997 국내석사

참오동나무재의 흰개미 저항성 및 내후성 평가

김윤기 강원대학교 일반대학원 2018 국내석사

본 연구에서는 국내산 목재 자원의 이용을 확대하고자 국내산 속성 수종인 참오동나무재(Paulownia tometosa [Thunb.] Steud.)의 흰개미 저항성 및 내후성을 평가하였다. 참오동나무재의 흰개미 저항성 및 내후성 검토를 위해 국내산 속성 수종인 은사시나무재(Populus tomentiglandulosa T. Lee)와 주요 유용 수종인 소나무재(Pinus densiflora Siebold & Zucc.)를 비교하였다. 또한 최근 목재 재질 개량방법으로 많이 사용되는 열처리 목재의 흰개미 저항성 및 내후성을 함께 분석하여 비교하였다. 세 수종의 목재를 각각 160°C, 180°C, 200°C, 220°C에서 2시간 동안 열처리 하여, 비(非)열처리재와 함께 연구에 사용하였다. 공시재료의 열처리에 의한 재색변화, 밀도변화, 중량감소율, 상대결정화도, 추출물 함량의 변화를 비교 하였고, 흰개미를 이용한 흰개미 저항성과 목재 부후균을 이용한 내후성을 평가하였다. 흰개미는 강원도 춘천시 학곡리 인근 야산에서 군락 전체를 채집하였고, 실험에는 활력이 높은 성충 일개미만을 사용하였다. 흰개미 저항성 시험(ASTM D 3345, 2017) 전․후의 중량감소율, 사충률, 목재 조직의 변화를 관찰하여 비교하였다. 내후성 평가(KS F 2213, 2014)에 사용된 공시균은 갈색부후균( Fomitopsis palustris)과 백색부후균(Trametes versicolor)을 사용하였고 부후균 폭로기간은 50일로 하였다. 부후균 폭로 50일 이후의 중량감소율과 목재조직의 변화를 분석하여 내후성을 평가하였다. 세 수종의 열처리에 의한 재색변화는 CIE-L*a*b*법을 기준으로 △E*값을 산출하여 N.B.S.의 색차 구분으로 비교한 결과 참오동나무재는 180°C 열처리 이후 상당한(appreciable) 재색변화를 나타내었고 은사시나무재와 소나무재는 160°C 열처리부터 상당한(appreciable) 재색변화를 나타내었다. 열처리에 따른 세 수종의 중량감소율은 참오동나무재가 가장 컸고 소나무재가 가장 작았다. 열처리 전․후의 추출물 용출량 또한 참오동나무재가 가장 많았다. ASTM D 3345(2017)은 따라 세 수종의 육안적 흰개미 저항성 평가 결과 비열처리 참오동나무재와 160°C 열처리재는 10(sound)등급으로 흰개미에 대한 상당한 저항성이 있다고 나타났다. 하지만 180°C 열처리 이후에는 저항성이 현저히 감소하여 육안적 흰개미 저항성 등급이 4(heavy)으로 낮아졌고 220°C 열처리재는 저항성이 전혀 없는 0(failure)등급으로 나타났다. 흰개미에 의한 참오동나무재의 질량감소율 또한 비열처리재와 160°C열처리재는 세 수종 중 가장 낮았지만, 180°C 열처리 이후 급격히 감소하였다. 참오동나무 비열처리재와 160°C 열처리재의 흰개미 사충률도 세 수종 중 가장 높았다. 비열처리 소나무재의 육안적 저항성 평가 결과는 9(light attack)에 해당하였다. 소나무재는 열처리 온도가 증가함에 따라 흰개미에 대한 저항성도 감소하였으며 220°C열처리재는 0(failure)등급으로 흰개미에 대한 저항성이 거의 없는 것으로 나타났다. 비열처리 은사시나무재의 육안적 흰개미 저항성 등급은 7(moderate attack)에 해당하였고 열처리 온도의 변화가 흰개미 저항성에 미치는 영향은 미비했다. 내후성 평가를 위해 갈색부후균과 백색부후균에 50일간 폭로된 세 수종의 시편들의 중량감소율은 갈색부후균에 폭로된 시편들이 백색부후균에 폭로된 시편보다 높게 나타났다. 세 수종 목재 시편 모두 열처리 온도가 증가 할수록 중량감소율을 감소하였고, 220°C에서는 부후균에 의한 중량감소울이 1% 미만이었다. 은사시나무재가 부후균에 의한 중량감소율이 가장 높았으며, 비열처리 참오동나무재와 소나무재는 중량감소율은 10% 미만으로 ASTM D 2017(2005)에 따라 상당한 내후성(highly resistance)을 갖는 것으로 나타났다. 본 연구결과, 참오동나무재는 흰개미와 부후균에 대한 상당한 저항성을 나타냈다. 하지만 열처리로 인해 흰개미와 부후균에 대한 저항성이 감소하였으며, 특히 180°C를 기점으로 크게 감소하였다. Termite and decay resistance of Paulownia tomentosa wood were investigated ,in this study. The resistances of Paulownia wood were compared with Suwon silver poplar and Korean red pine. The effects of heat treatment on the termite and decay resistances of the three wood species were also analyzed and compared.  Paulownia wood and Poplar wood were collected from the research forest of Kangwon National University and Pine wood was provided from the National Institute of Forest Science, Korea. Three wood species were treated at 160°C, 180°C, 200°C and 220°C in electric furnace for 2 hours. The changes of color, density, mass loss, relative crystallinity, and extractives were investigated before and after heat treatment. Termites(Reticulitermes speratus) were collected in the mountains near Hagokri, Chuncheon city, Gangwondo, and only the vitality workers were used. Mass loss, mortality, and cell structure were examined before and after the termite test by ASTM D 3345. The fungi test using brown-rot(Fomitopsis palustris) and white-rot fungi(Trametes versicolor) was carried out according to KS F 2213 and the exposure period of the fungi was 50 days. After fungi test, mass loss and the change of wood cell structure were analyzed.  Paulownia wood showed a significant ΔE* change after heat treatment above 180°C. However pine wood showed significant change from 160℃. Mass loss of the three wood species by heat treatment was the highest in the Paulownia wood and the lowest in the pine wood. The amount of extractives before and after the heat treatment was also highest in the Paulownia wood. Paulownia wood without heat treatment showed great resistance to termites. However, the resistance decreased remarkably by heat treatment above 180°C. Mass loss of Paulownia wood was rapidly increased with heat treatment above 180°C. Mortality after termite test using paulownia wood was also decreased in the temperature of above 180°C. Korean red pine wood showed the highest mass loss among the three wood species. Heat-treated pine wood and poplar wood showed not significant difference in mortality and mass loss. Decay resistance of the three wood species decreased with increasing heat treatment temperature. Mass loss of the three wood species exposed to fungi decreased with increasing heat treatment temperature. Brown-rot fungi caused higher mass loss than white-rot fungi in the three wood species. Paulownia wood showed lower mass loss than pine and poplar wood by fungi. In this study, it is revealed that Paulownia wood has high resistances to termite and decay. However, the resistances to termite and fungi of Paulownia wood decreased by heat treatment.

李濟馬 四象哲學의 倫理論 硏究

김윤기 韓國學中央硏究院 2005 국내박사

The purpose of this dissertation is to reveal the ethical theory of Lee Je-ma as it appears in his sasang constitutional philosophy (四象 哲學). Lee Je-ma (1837-1900) was a sasang philosopher as well as a medical doctor of sasang constitution in late Joseon (朝鮮). He divided people into four different categories based on observed characteristics: He classified people with large lungs and small liver as taeyangin (太陽人, a person with large yang), those with large spleens and small kidney as soyangin (少陽人, a person with little yang), those with large liver and small lungs as taeeumin (太陰人, a person with large yin), and those with large kidney and small spleens as soeumin (少陰人, a person with little yin). Research on Lee Je-ma to date has been conducted mainly for the purpose of treating patients in the medical field. Research on his philosophy is necessary because his entire sasang is based on this philosophy. Thus, the formation of Lee Je-ma's sasang constitutional philosophy and its fundamental structure has been analyzed in this dissertation, and the ultimate ideal moral human being and ethical society he pursued is also presented. Moreover, his significant claim that the contents of moral education must be differentiated according to the type of people from a moral educational viewpoint is linked to today's education. Chapter 2 analyzes the background ofthe formation of Lee Je-ma's sasang constitution. His sasang constitutional philosophy is based on a new interpretation of the Four Books (Analects of Confucius論語, The Works of Mencius 孟子, The Great Learning 大學, and Doctrine of the Mean 中庸). The Neo-Confucian framework that sequentiallky links the theory of the principle and material force (理氣論) ?the theory on the nature of the mind (心性論) ? the theory of self-cultivation (修養論) is revised to the theory of the viscera (臟腑論) ? the theory on the nature of the mind (心性論) ? the theory of self-cultivation (修養 論). Unlike the then-existing system of thought based on the study of the principle of human nature (性理學) in which the nature of the mind is supposed to have been assigned by Heaven, this philosophy emphasizes the autonomy of human existence in particular by locating the source from the viscera within one's own body. Chapter 3 contains analysis of the basic concepts of the four types of man that form the sasangconstitutional philosophy. The four types are broadly divided into two levels. The basic elements forming the four types of an individual are affairs (事), the mind (心), the body (身), and objects (物), and further, these four types are distinguished according to the size (large or small) of lungs, spleens, liver, and kidney. These four types of people are classified ad taeyangin (太陽 人), soyangin (少陽人), taeeumin (太陰人), and soeumin (少陰人). Lee Je-ma also interpreted nature (性) and the Heavenly mandate (命) differently from the study of the principle of human nature of his time. In the study of the principle of human nature, nature is what is awarded to man by Heaven and the mandate is what is awarded by Heaven. But to Lee Je-ma, nature is a commonelement such as Heaven while the mandate is the individual element such as individual people. Thus, Lee Je-ma was able to emphasize the autonomy of mankind by considering nature and the mandate both as properties of human beings. The theory of good and evil (善惡) and the theory of knowledge and practice (知行)that are central to ethics are examined in Chapter 4. Further investigation is conducted on ethical grounds for argument on sasang constitutional philosophy with emphasis on the theory of justification. First, Lee Je-ma considered the source of good and evil (non-good) to originate from selfishness (私心), greed (慾 心), arrogance (放心), and disinterest (逸心). These four emotions, which are considered improper in the study of the principle of human nature, are acknowledged. Lee Je-ma was of the opinion that the mind itself is not the issue but rather that the mind can be good or non-good, depending on the object of the mind and the attendant result. Lee Je-ma linked this philosophy to health in such a way that practicing good is considered medicinal and practicing non-good is considered bad for the health.Thus, the causes of illness are being envious of those who are wise and capable (the greatest evil in the world), and medicinal is to like those who are wise and to takepleasure in benevolence (the greatest good in the world). On the theory of knowledge and practice, Lee Je-ma equated morality with knowledge and practice morality that is realized through nature and the mandate is knowledge and practice, and accumulating knowledge and practice is morality. Thus, one will automatically become a sage when knowledge and practice are perseveringly cultivated. Knowledge and practice that form morality is like the basis of human existence. The reasoning for morals that builds a person's character also arises from knowledge and practice. The grounds for justification of the theory as advocated by Lee Je-ma as to why one should be moral is that moral actions lead naturally to a good life. In other words, good deedsnot only bring psychological satisfaction and stability but also make living a long and healthy life possible by keeping the body healthy. The phrase "lead naturally to a good life" (命數自美) mentioned here by Lee Je-ma does not mean "living a long life without dying prematurely" but "living a self-satisfied life." Chapter 5 reviews desirable and undesirable characteristics of mankind as proposed by the sasang constitutional philosophy. Lee Je-ma suggested that certain types of people who are classified according to the state of their viscera are more gullible toward undesirable human characteristics. Thus, diverse ways to overcome such diversely undesirable human characteristics must be applied as well. Confucianism of the time did not differentiate between individuals in its advocacy of cultivating ideal human beingsdespite the fact that it did acknowledge the differences in dispositions of people; it only discussed the difference in the ability to practice good based on the Heavenly disposition awarded to mankind. Lee Je-ma, however, considered that one could become a moral person through maintaining equilibrium on nature and emotions of joy, anger, sorrow, and pleasure and not through the practice of persistently reverent attitude and the investigation of the principle (居敬窮理). Manifestations of nature and emotions also differ between individuals, and thus, Lee Je-ma viewed that the list of items to be taught to individuals must differ according to the individual as well. Moral education of today which emphasizes virtue education or character education concentrates on the items to be taught but overlooks the fact that the items taught must be tailored to suit individual needs. Therefore, we can say that customized education is Lee Je-ma's contribution to the methodology of education. There are many problems inherent in the aptitude-oriented educational system of today that has kept pace with the era of unlimited competition. In particular, the subject of ethics should emphasize righteous and behavioral aspects as well as moral knowledge. This is because the type of human being a person ultimately becomes and his/her behavior can be separated from intelligence by forming, educating, and carrying out moral character. Maintaining a equilibrium(中和) in terms of joy, anger, sorrow, and pleasure as suggested by Lee Je-ma is equivalent to a person of the virtuous character of humanity, righteousness, propriety, and wisdom (仁義禮智). There is a great possibility of cultivating calculating people through currently prevailing moral education centered on logical principles such as western justice rather than cultivating people of virtuous characters. A calculating person will put the pursuit of his/her personal happiness first in comparison to a communal life an alternative solution to this problem may be the maintenance of benevolence, righteousness, propriety, and knowledgethrough a balanced state of nature and emotions as presented by Lee Je-ma. 본 연구의 목적은 이제마 사상의 본질을 철학적 측면에서 규명하여 그의 윤리론을 밝힌 다음 도덕교육적 의미를 찾는데 있다. 그동안 이제마는 의학자로 알려져 철학적 연구가 제대로 이루어지지 않았다. 흔히 이제마는 사상의학의 창시자로 알려져 있으나 그의 의학사상은 사상철학을 바탕으로 이루어지고 있다. 무엇보다 희노애락과 같은 성정의 조화를 통해 도덕적으로 바람직한 모습과 육체적으로 건강한 모습을 달성할 수 있다고 주장하는 이제마는 기존의 유학자와는 다른 도덕철학자라고 할 수 있다. 이제마를 의학자이기 전에 도덕철학자로 여겨야 하는 이유는 그의 사상을 통해 나타난 윤리론을 보면 분명하게 드러난다. 이제마는 도덕과 건강을 동일한 맥락에서 파악하여 도덕적으로 행동하면 자연스럽게 건강해질 수 있다고 말하고 있다. 따라서 도덕적 삶은 약이 되고, 비도덕적 삶은 병을 유발한다고 봤다. 이러한 이제마의 도덕 정당화 방식은 플라톤이나 유학에서 말하는 고원한 이상주의나 형이상학보다 설득력을 갖는다. 또한 오늘날 사회계약설과 같은 더 큰 손해를 입지 않기 위해 도덕을 지키는 것과도 다르다. 플라톤이 지적하고 있듯이 기게스의 반지와 같은 절대적 권력이나 탁월한 능력을 가진 사람은 다른 사람의 감시나 보복을 입을 염려가 없기 때문에 얼마든지 비도덕적 행동을 하게 된다. 이러한 지적처럼 오늘날 사회 지도층의 부도덕이 줄어들지 않는 것에는 자신들의 부도덕한 행동은 탄로 나지 않을 것이라는 낙관론과 함께 부도덕한 행동이 탄로 나더라도 감히 처벌하지 못할 것이라는 초법적 사고에도 원인도 있다. 날로 흉폭화해지고 개인주의화 되어가는 현대사회를 바람직한 방향으로 이끌어 갈 일차적 책임을 지고 있는 도덕교과가 그동안 경쟁에 익숙하고 목표달성만을 추구하는 입시 교육에서 큰 힘을 발휘하지 못한 것이 사실이다. 이러한 반성에서 근래 유덕한 인격인을 양성하기 위한 덕 교육이 강조되고 있으나 이 역시 여러 문제점을 안고 있다. 특히 오늘날 덕 교육은 너무 많은 덕목을 제시함으로 덕 교육 본래의 유덕한 인격인 양성보다는 각 상황에 적합한 갈아 끼우기식 덕목 교육으로 전락할 위험에 직면해 있다. 이러한 위기를 극복하기 위한 대안으로 본 논문은 포괄적 덕목으로 이제마의 사덕을 통해 도덕적 인간을 육성하고자 한다. 아울러 도덕교육의 3대 구성 요소를 도덕적 정의, 도덕적 지식, 도덕적 행동이라고 한다면 오늘날 지식 영역과 행동 영역은 어느 정도 강조되고 있지만 정의 영역의 교육은 미흡한 것이 사실이다. 도덕적 행동을 하기 위해서는 도덕적 지식을 통한 판단이 우선되어야 하고, 도덕 판단은 도덕적 감정을 통한 공감이 우선되어야 하기에 정의(情意) 교육이 무엇보다 중요하다고 할 수 있는데 이러한 교육이 이루어지지 않음으로 불완전한 도덕교육이 되고 있다. 이러한 반성에서 본 논문은 이제마가 도덕적 인간이 되기 위해 무엇보다 희노애락의 감정 조화를 강조한다는 점을 중점적으로 검토 한다. 본 논문에서 논의하고 있는 이제마의 도덕 교육론은 그의 윤리론을 기반으로 하고 있는바 선악론과 지행론, 도덕정당화론을 축으로 이제마의 윤리론을 검토한다. 또한 그의 윤리론이 표출되는 사상철학은 사상(四象)을 핵심 개념으로 이루어지는데, 이를 개인을 구성하는 요소로서 사상과 전체적 인간들을 구분하는 사상인으로 나누어 볼 수 있다. 조선사상사를 통해 그 누구보다도 독창적이었던 이제마의 사상은 기존의 성리학과는 두 갈래 방식에서 다른 길로 나가고 있다. 하나는 내용면에 있어서 주희식의 해석을 취하고 있지 않다는 점이다. 비록 조선이라는 지리적, 시대적 울타리를 벗어나지 못하는 한계로 인해 유학의 정수인 사서를 자신의 이론적 바탕으로 삼고 있지만, 주자학과는 완전히 다른 해석을 하고 있다. 예컨대 욕심을 긍정한다든지 성과 명을 보편자와 개별자 또는 정신적 요소와 육체적 요소로 삼아 새로운 세계관을 구축하고 있다. 다른 하나는 이론 체계의 구성을 주자처럼 삼원(이기-심성-수양)체계를 취하고 있으나, 그 출발점을 이기론이 아니라 장부론에 둠으로서 장부-심성-수양의 체계를 구성하고 있다는 점이다. 이제마는 이러한 장부론으로부터 자신의 철학 근거를 삼기에 심성론과 수양론에 있어서도 새로운 방식으로 기존과 달라지게 된다. 이처럼 이제마는 자신의 철학 근거를 인간 내부의 장부에 둠으로서 우주론적 문제보다 인간의 문제에 국한하여 논의를 전개하는 특징을 가진다. 본 논문은 이상의 내용으로 구성된 이제마 철학사상을 검토함으로서 그의 철학사상을 전체적으로 분석하여 윤리론을 밝히고 나아가 오늘날 도덕교육에 조금이라도 일조하고자 하는 의도에서 출발하고 있다.

PIV/PLIF 기법에 의한 회전교반기 유도장의 속도/농도 동시측정

김윤기 부산대학교 대학원 2003 국내석사

Mixing is most widely observed phenomena in nature and it is also important for food industry, department of chemistry, and so on. Effective mixing in stirred tank make good product and high productivity in many cases. But quantitive data about its behavior in stirred tank is rare. In this experiment a study on simultaneous measurement of flow pattern in stirred tank using PIV/PLIF is carried out. Instantaneous velocity fields and corresponding concentration fields is acquired. Through statistical processing some mixing characteristic- two time scale, ring vortex- in stirred tank has been identified. It is noted that baffle in stirred tank can progress mixing efficiency. In case of baffle attached experiment, there exist several vortex disturbing inactive region, and this make flow more complex, boundless streamlines.

칼만필터와 보행 상태 추정 알고리즘을 이용한 저가형 보행자관성항법 시스템

김윤기 부산대학교 대학원 2013 국내석사

This paper proposes a height estimation scheme for a low-cost Pedestrian Dead-Reckoning(PDR) System using Kalman Filter(KF) and Walk Condition Estimation Algorithm(WSEA). In general, GPS(Global Positioning System) has been widely used to estimate the position of pedestrians or vehicles. However, there are a lot of places that the GPS does not working in real environments, For example, the position information in commercial GPS products does not accurately updated in indoor building or tunnel. In this paper, we propose a height estimation scheme for Inertial Measurement Unit(IMU)-based PDR system in indoor buildings. Basically, we utilize a barometer to estimate height position of pedestrian. In addition, we design a KF and a WSEA to minimize the estimation error due to the barometer. The proposed algorithm has been tested in a real test bed. The experimental results show that the proposed algorithm mitigate the estimation error.

Variable Fidelity Optimization of Film Cooling Hole Arrangements on High Pressure Turbine Considering Conjugate Heat Transfer

김윤기 서울대학교 대학원 2017 국내석사

Conjugate heat transfer (CHT) should be taken into account when analyzing heat transfer in high pressure turbine (HPT) to improve the accuracy of the simulation because film cooling is used to reduce the convective heat transfer into the blade and temperature potential which drives conduction by coolant film extracted from holes. However, Research of film cooling hole array optimization have been conducted under the adiabatic condition due to high computation burden in CHT analysis. Moreover, optimization considering CHT has been restrictively attempted on relatively simple problem such as single hole shape optimization problem. In this study, film cooling hole arrangement is optimized by considering CHT effects. In an effort to reduce computation load, EI-based efficient global optimization (EGO) algorithm coupled with hierarchical Kriging (HK) model is implemented. There, however, have been still several ambiguities to be clarified when applying the HK model to hole array optimization problem for practical utilization. The first is the existence of optimal high to low fidelity sample ratio to reduce the computational cost. The second is whether the HK model can produce converged result irrespective of the different high-to-low fidelity sample ratio. All the analyses of the ambiguity-clarification are conducted under the adiabatic condition. As a result, HK model not only produce the consistent and reliable optimization result but also reduce the CPU time at the similar level, 40%, irrespective of the different high-to-low fidelity sample ratios. Based on the adiabatic analysis-based optimization results, CHT-based optimization is conducted with 3-level HK model. Computation time decreases by 76.45% compared to CHT-only optimization. Furthermore, the film cooling hole arrangement shows substantially different configuration from adiabatic analysis-based optimization results. Specifically, although the second array shape is similar to the adiabatic result, the third hole arrangement has curvature towards the leading edge like a parabola. This resultant hole array configuration is shown to be the best combination of inner cooling components and film cooling hole locations, which make the inner and outer coolant cover the nozzle surface as much as possible. The detailed reasons why the hole arrangements are determined are discussed by investigating the pressure, velocity contours, and streamlines. As a result, the nozzle surface temperature decreases by 49.64 K and average overall film cooling effectiveness (ϕ) increases by 0.058 compared to those of baseline. The method used in this study is promising in terms of handling highly-nonlinear or high-computing required problems.

초등학교 교원 교내연수체제의 현황과 문제 분석

김윤기 충북대학교 교육대학원 2000 국내석사

Relationships between MgO Manufacturing Conditions and AC PDP Lifetime : MgO 제작 조건과 AC PDP 수명시간의 상관관계

김윤기 부산대학교 대학원 2001 국내석사

(An) Ergonomics Study on Improving Accessibility of Washing Machines for People with Disabilities

김윤기 서울대학교 대학원 2019 국내석사

고령자 및 장애인의 인구가 세계적으로 증가함에 따라 모든 사람들의 일상 및 사회 활동에 동등한 기회를 제공하는 것이 중요해지고 있다. 그에 따라 연령이나 장애 여부에 관계 없이 제품을 동일하게 사용하기 위해 제품과 환경의 접근성을 향상하는 연구가 활발하게 이루어지고 있다. 그러나 고령자와 장애인 인구가 증가함에도 불구하고 인체 측정 데이터를 분석하여 접근 가능한 가전 제품의 설계를 제공하는 연구는 제한적이다. 특히 척수장애인들은 가전 제품과의 상호 작용에서 낮은 독립성을 보인다. 따라서, 본 연구에서는 고령자와 시각, 청각, 척수 장애인을 대상으로 세탁기 사용의 접근성 향상을 위한 가이드라인을 제안하였다. 연구 1에서는 설문 조사 및 인터뷰를 통해 시각장애, 청각장애, 척수장애인과 고령자를 대상으로 선호하는 제품 컨트롤 유형 및 디자인을 분석하였으며, 세탁기 사용시의 주요 이슈에 대해 분석하였다. 연구 2에서는 척수 장애인을 대상으로 인체 측정 데이터를 분석하여 척수장애인의 세탁기 사용의 접근성 향상을 위한 최적의 세탁기 규격을 파악하였다. 또한, 기존의 세탁기가 척수 장애인의 인체 특성을 수용하는지 식별하기 위하여 기존 세탁기와 규격과 제시된 식을 분석하여 미스매치를 파악하였다. More than 200 million people face difficulties in daily activities due to disability and aging. As the number of elderly people grows worldwide, it is becoming increasingly important for everyone to have equal opportunities in everyday and social activities. Despite the increasing statistics of the disabled and elderly population, limited research has been done to provide an accessible design by analyzing anthropometric data. This study identifies the usage issues on preferred control types on washing machines for people with disabilities; visual impairment, hearing impairment, spinal cord injury, elderlies, and analyze the anthropometric characteristics of people with spinal cord injuries and identify optimal accessible measurements for washing machine design. The purpose of this research is to propose a design guideline on washing machines for people with disabilities. Surveys and interviews were conducted with participants with visual impairment, hearing impairment, spinal cord injuries, and elderlies to analyze the preferred product control types and designs. From the interview of washing machine usage, participants with spinal cord injuries showed a significant difference compared to other groups as they have a limited range of movement due to the wheelchair and their physical difficulties. Thus, anthropometric data of people on a wheelchair are used to formulate equations for washing machine measurements that are optimally accessible for people with spinal cord injuries. The formulas were used for finding the anthropometric mismatch of five existing washing machines, in order to identify how the current washing machines accommodate anthropometric characteristics of people with spinal cord injuries. From the results of preferred control types and optimal washing machine measurements, possible design considerations for accessible washing machines are proposed in this research.

癌患者의 死亡年齡 分布에 관한 硏究

김윤기 朝鮮大學校 大學院 1988 국내박사

This study was tried t o review the trend of death rate due to the neoplasms, epidemilogical pattern of the cause-unknown and incurable diseases and also to analyze the distribution of age- at- death from malignant neoplasms and to rule out the characteristics in age of the deaths due to them. The materials of causes of death statistics made in 1986 were utilized . The proportions of death caused by malignant neoplasms by age groups were apllied to the probabilities of death from 1978- 79 by abridging life table in order to observe the picture of age distribution based on stationary population. The major findings were as follow: 1. In 1986 about 254,000 deaths were supposed to have died in Korea , based on the population projected by 1985 population. and of them 231,940 (about 91% ) deaths were registered during the period limited legally , however, all of the registered deaths could not be used for the analysis of cause of death. Thus, only 84.6% in males and 79.9% in females of the registered deaths could be classified into the international classification of cause of death. 2. Among the classifiable deaths 19,996 ( 17.4% ) of males and 11,378 (14.8%) of females were due to malignant neoplasms, and these rates were slightly lower than those in Japen and in U.S.A. 3. Malignant neoplasms of stomach was 35% among all of neoplasms in Korean people. The second malignant neoplasms was that of liver which is 26.2% in males and 14.1% in females. 4. According to the probabilities of deaths from life table , in 0-4 and 20-39 years of age the probabilities of death due to malignant neoplasms in females were higher than those in males and in the other age groups probabilities in the males were higher than those in thee females. 5. Among the 100,000 birth cohort of each sex 16,700 persons of the males and 10,927 persons of the females were died malignant neoplasms ( i . e., 16.7% of male and 10.9 % of female at brith were expected to die from the disease ) 6. Conditional probabilities of the survivors who were expected to die malignant neoplasms to the life table survivors were about 0.57 in males and 0.11 in females until they were 50 years of age. 7. Age specific distribution functions showed the highest at 65- 70 years of age in males ( 4.1% ) and at 70-74 years of age in females(3.1%) 8 . Accumulative distribution function to cause of death due to malignant neoplasms in females were higher than in males until they were 55-59 years of age.