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신현호,윤상옥,김신,황인준,Shin, Hyunho,Yoon, Sang-Ok,Kim, Shin,Hwang, Injoon 한국세라믹학회 2013 한국세라믹학회지 Vol.50 No.3
The effect of a $WO_3$ or $Ga_2O_3$ addition on the densification, phase evolution, optical reflectance, and elastic and dielectric properties of $Y_2O_3$-doped AlN ceramics sintered at $1800^{\circ}C$ for 3 h is investigated. The investigated compositions of the additives are 4.5 wt% $Y_2O_3$ (YA), 3.5 wt% $Y_2O_3$-1.0 wt% $Ga_2O_3$ (YGA), and 3.5 wt% $Y_2O_3$-1.0 wt% $WO_3$ (YWA). $YAlO_3$ and $Y_4Al_2O_9$ form as the secondary phases in all of the investigated compositions, whereas $W_2B$ appears additionally in the YWA. In the YGA, Ga is detected in the AlN grains, indicating that the dissolution of $Ga_2O_3$ into the AlN lattice occurs. The addition of $WO_3$ blackens the specimen more significantly than that of $Ga_2O_3$ does. In all of the investigated specimens, the linear shrinkage and the apparent density are above 20 percent and in the range of 3.34-3.37 $g/cm^3$, respectively. The elastic modulus, Poisson's ratio, the dielectric constant, and the dielectric loss are in the ranges of 335-368 GPa, 0.146-0.237, 8.60-8.63, $2.65-3.95{\times}10^{-3}$, respectively. The sinterability and the properties of $Y_2O_3$-doped AlN ceramics are not much altered by the addition of $WO_3$ or $Ga_2O_3$.
파이프 이음부가 단동온실 구조성능에 미치는 영향: 실대형 실험적 및 해석적 연구
신현호,류희룡,유인호,조명환,서태철,김승유,최만권,Shin, Hyun Ho,Ryu, Hee Ryong,Yu, In Ho,Cho, Myeong Whan,Seo, Tae Cheol,Kim, Seung Yu,Choi, Man Kwon 한국생물환경조절학회 2021 생물환경조절학회지 Vol.30 No.4
This study was conducted in 8.2m wide single-span greenhouse to investigate the effect of presence or absence of rafter steel pipe joint and foundation conditions on greenhouse structural performance. Structural performance was evaluated by static loading test using the structural performance evaluation system for single-span greenhouse. The measured displacement was compared with the predicted result by numerical analysis. The displacement of each measurement location showed a significant difference regardless of the conditions of the foundation and presence or absence of rafter steel pipe joint. Compared to the hinge conditions, the difference in structural performance of the greenhouse in the fixed conditions was seen to be relatively large. The difference in structural performance according to presence or absence of rafter steel pipe joints, the lateral stiffness of the joint was 8.1% greater. 본 연구에서는 원예특작시설 내재해형 규격서에 등록되어 있는 폭이 넓은 단동온실(10-단동-5형)을 대상으로 기초의 경계조건과 서까래 강관의 이음 유무에 대해 실물 크기 실험을 실시하고 그 결과를 수치해석 결과와 비교하여 이음부가 있을 때 구조성능 차이에 대해 알아보았다. 각 측정 위치별 변위를 실험에서 측정한 값과 수치해석으로 예측한 값을 비교한 결과에서는 기초의 조건 및 서까래 강관 이음 유무에 상관없이 모두 상당한 차이를 보였고, 힌지 조건 보다 고정 조건이 상대적으로 차이가 컸다. 그리고 모든 절점을 강접합으로 가정하고 구조해석한 결과를 구조실험과 비교한 결과에서는 힌지조건이 고정조건 보다 잘 일치하였지만 해석값이 실험값 보다 크게 나타났다. 수치해석은 모든 절점을 강접합으로 가정했기 때문에 실제 성능과 달랐다. 따라서 현재 모든 절점을 강접합으로 가정하고 온실을 설계를 하면 과소설계될 우려가 있어 앞으로 신뢰성 높은 온실 설계를 위해서는 서까래와 도리가 교차하는 교차부 성능 특성을 고려한 구조해석 기술 개발이 이루어져야 할 것으로 판단된다.
신현호 ( Hyun-ho¸ Shin ) 현대영미어문학회 1993 현대영미어문학 Vol.11 No.-
Dylan Thomas was in a rather peculiar position among the contemporary poets. Pound, Eliot, Yeats and Auden all represent an intellectualization of the poetic world or an implied view of poetry as social achievement. On the other hand, Thomas takes an attitude of antithetical movement such as William Blake. Thomas’ whole interest was in the self-exploration. He, casting light on the dark interior of the self, tried to discover himself. His poetry explores the subject of birth and death, creation and destruction in terms of primitivism, pantheism and finally love of man, accepting and celebrating the tragic human condition. In his early poetry based upon the “womb and tomb” motif, he attempted to overcome the fear of death by firmly believing the coexistence of birth and death. What Thomas found to symbolize this belief was the womb where birth and death seems to coexist. And he considered death as a part of nature’s process. His poetry of the middle period shows a greater involvement with others, as “A Refusal to Mourn the Death” and “After the funeral”, he does not deny the death of all things, including himself, but in anticipating this necessary destruction within poems and by participating in it, Thomas can overcome the fear of death. And the final period, characterized by longer, narrative poems like “Fern Hill” or “Poem in October” is one of acceptance of humanity and the tragic condition of man, or a movement toward affirmation and a conditional consent to the presence of death in life. Though Thomas dealt with the familiar theme to us, he dealt with it in a strange, surprising way. His originality and worthiness lies in the technique rather than themes. In talking of the change of technique, Thomas’s idiosyncratic language in his early poem is the reflection both of joy in playing with words and of a necessity to express the ineffable unity of the universe. While Thomas’ middle period shows a greater concern with the specifics of eternal reality displaced the primary vision, so that in the later poems ultimate realities are approached through nature and daily life instead of visionary imagery.
신현호,김철수,김창욱,장순남,성완,장동환,강석원,최석홍,Shin, Hyun-Ho,Kim, Chool-Soo,Kim, Chang-Wook,Chang, Soon-Nam,Sung, Wan,Chang, Dong-Hwan,Kang, Suk-Won,Choi, Suk-Hong 한국세라믹학회 1998 한국세라믹학회지 Vol.35 No.1
Mullitization in a multicomponent oxide system(alumina-kaolin-quartz-feldspar-talc) was studied as a function of sintering temperature from 1200 to 1500$^{\circ}C$ based upon a quantitative X-ray diffraction analysis. In the present study mullite grew as wiskers and its formation reaction showed characteristic there stages as follows In the first stage(1255-1295$^{\circ}C$) an appreciable mullitization(nucleation) occurred while corun-dum dissolution into glass (increasing glass content ) limited the rate of the reaction. At 1295-1335$^{\circ}C$ (second state) the reaction was significantly enhanced with a considerable glass consumption and with no appreciable change in corundum content. Finally (above 1335$^{\circ}C$) the reaction rate was attenuated re-markably with an apparent decrease in glass consumption rate. The impingement of mullite whiskers by oth-er whiskers and crystals was speculated to cause mullite growth in thickness direction with a slow growth rate resulting in the diminished reaction rate in the final stage.
현행법상 의료분쟁에 있어서 당사자 신청의 소송 대체 분쟁해결제도
신현호(Hyun Ho Shin),백경희(Kyung Hee Baek) 서울대학교 법학평론 편집위원회 2012 법학평론 Vol.3 No.-
의료사고 피해구조 및 의료분쟁 조정 등에 관한 법률을 통하여 신설된 한국의료분쟁조정중재원은 의료분쟁이 해결되기까지 소요되는 시간을 단축하여 신속하고 공정한 해결을 도모하고, 궁극적으로 국민의 생명권과 건강권을 보장하고 의사에게도 안정적인 진료환경을 조성하고자 함에 그 목적이 있다. 한국의료분쟁조정중재원의 분쟁해결제도도 ADR(Alternative Dispute Resolution)의 한 형태로 이해될 수 있는데, 우리나라에는 기존에도 유사한 제도가 현행법의 테두리 내에서 시행되어 왔고 현재에도 시행되고 있다. 그렇기 때문에 한국의료분쟁조정중재원의 제도적 필요성에 대하여 의문을 품거나 제도의 통합 등의 개선을 요구하는 측면도 존재한다. 본고에서는 ‘의료분쟁’의 개념이 무엇인지 정립하면서, 의료분쟁에서 소송 외의 분쟁해결수단이 필요하기 때문에 생성되어 온 현행법상의 제도들의 개요를 점검하고, 의료사고 피해구조 및 분쟁조정 등에 관한 법률에 의한 조정 및 중재제도 및 한국의료분쟁조정중재원의 조직적 구조 등을 개관하기로 한다. 이를 통하여 현 체제 내에서 궁극적으로 한국의료분쟁조정중재원이 실효성과 공정성을 보완하기 위한 방안과 예상되는 문제점은 무엇인지에 관하여 검토하고자 한다. The newly created Korea Medical Dispute Mediation and Arbitration Agency (KMDMAA) based on Medical Malpractice Damage’s Relief and Mediation for Medical Dispute Resolution has its purpose that promotes the rapid and fair resolution of medical dispute, and finally guarantees the right to life and health of people and provides doctors the stable medical environment. Mediation for Medical Dispute Resolution of KMDMAA is understood as ADR(Alternative Dispute Resolution) and a similar system in our country exists and has been enforced within the current legal boundaries. Thus, there is the doubt about the institutional need for KMDMAA or the demand for systemic integration and improvement. In this article, I establish the concept of ‘medical dispute’ and inspect the current legal institution for dispute resolution exception to lawsuit, and overview medical malpractice damage’s relief and mediation for medical dispute resolution and the systematic organization of KMDMAA. Furthermore, I review the remedy for complementing the effectiveness and fairness of KMDMAA and the expected problems.
신현호(Hyun Ho Shin),강훈(Hoon Kang),윤성호(Sungho Yun),김용찬(Yongchan Kim) 대한기계학회 2018 대한기계학회 춘추학술대회 Vol.2018 No.12
Recently, there has been a growing interest in mini-channels owing to their high heat transfer coefficients and compact sizes. To enhance the performance of mini-channels, different fin arrays have been studied widely. However, there have been a few studies comparing the performance of fin geometries. In this study, a comparative study of plate fins, pin fins, oblique fins is performed by using computational fluid dynamics. Mini-channels with pin fins shows the highest heat dissipation performances, and mini-channels with oblique fins shows the lowest pressure drop results.