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RISS 인기검색어
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- 저자 : 신현호(Hyun Ho Shin) (검색결과 166 건)
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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.
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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.
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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.
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연동온실 내 위치별 일사량에 따른 토마토의 생육 및 수량 비교
신현호(Hyun Ho Shin),최만권(Man Kwon Choi),류희룡(Hee Ryong Ryu),조명환(Myeong Whan Cho),김진현(Jin Hyun Kim),서태철(Tae Cheol Seo),유인호(In Ho Yu),김승유(Seung Yu Kim),이충근(Choung Kuen Lee) (사)한국생물환경조절학회 2022 생물환경조절학회지 Vol.31 No.4
본 연구에서는 연동온실의 골조로 인한 내부 광 분포를 검토하기 위하여 위치별(중앙부 및 측면부) 일사량을 실측하고, 오전(08:30-12:30)과 오후(12:35-16:30)로 시간대를 구분하여 일사량, 광 투과율 및 일 적산일사량을 분석하였다. 또한 토마토의 생육 및 수확량을 위치별로 비교하였다. 오전일 때 중앙부와 측면부의 일사량은 각각 275.2W·m<SUP>-2</SUP>, 314.9W·m<SUP>-2</SUP>이고, 오후일 때는 각각 278.1W·m<SUP>-2</SUP>, 313.9W·m<SUP>-2</SUP>로 측면부 보다 중앙부가 오전은 12.6%, 오후는 11.4% 낮았고, 광 투과율과 일 적산일사량도 중앙부가 낮게 나타났다. 생육 특성에 있어서는 첫 번째 조사의 엽장과 엽폭을 제외하고는 조사 종료일까지 유의미한 차이가 없었다. 토마토의 최종 주당 평균수확량은 재배 위치에 따라 중앙부 4,828g, 측면부 4,851g으로 유의미한 차이는 없었고, 중앙부가 0.5% 적게 나타났다. 토마토의 광보상점은 60W·m<SUP>-2</SUP>이고 광포화점은 281W·m-2로 중앙부의 시간대별 일사량은 광보상점보다는 높고, 광포화점 보다는 낮으나 그 차이가 크지 않아 온실 내 위치에 따른 생육 및 수확량의 차이가 미미한 것으로 판단하였다. 향후 이 검토결과를 포함하여 온실을 설계할 때 광 환경을 고려한 설계를 위해 온실의 설치 방향, 위치 및 지붕 경사도 등에 따른 온실 내 광 분포 분석이 필요하다. To examine the distribution of internal solar radiation within various locations in multi-span greenhouses, the solar radiation, light transmittance, and accumulated radiation at the central and lateral sections were analyzed by dividing 8:30 to 12:30 in the morning and 12:35 to 16:30 in the afternoon. The growth and yield of tomatoes within these sections were also compared. In the morning, the solar radiation of the central section and the side section was 275.2 W·m<SUP>-2</SUP> and 314.9 W·m<SUP>-2</SUP>, while in the afternoon, it was 314.9 W·m<SUP>-2</SUP> and 313.9 W·m<SUP>-2</SUP>, respectively. The light transmittance and accumulated radiation were also low, confirming the low distribution of solar radiation in the central (connecting) section of the multi-span greenhouses. The growth survey revealed no significant difference. The final yield of tomatoes per plant was 4,828 g in the central section and 4,851 g in the lateral section, but there was no significant difference in the central section compared to the lateral section by 0.5%. However, the amount of solar radiation as per time in the central section is higher than the light compensation point, 60 W·m<SUP>-2</SUP>, and slightly lower than the light saturation point of tomatoes, i.e., 281 W·m<SUP>-2</SUP>. The results of this study can help in greenhouse design based on the insolation environment.
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PLD 법으로 제작한 In₂O₃-ZnO 박막의 광학적 및 전기적 특성
신현호(Hyun Ho Shin),한정우(Jung Woo Han),강성준(Seong Jun Kang),윤영섭(Yung Sup Yoon) 대한전자공학회 2008 電子工學會論文誌-SD (Semiconductor and devices) Vol.45 No.7
본 연구에서는 펄스 레이저 법으로 200 mTorr 의 산소 분압에서 기판 온도를 200 ℃ 에서 600 ℃ 까지 변화시켜 가며, quartz 기판 위에 In₂O₃-ZnO 박막을 제작하여 광학적 및 전기적 특성을 조사하였다. XRD 측정을 통해 In₂O₃-ZnO 박막이 다결정 상태인 것을 알 수 있었으며, 기판 온도가 500 ℃ 로 증가함에 따라 35.5° 부근의 In₂O₃(400) 피크는 감소한 반면 30.6°부근의 In2O3 (222) 피크는 증가했다. 박막의 표면을 AFM 으로 조사한 결과, round type 의 결정립들이 관찰되었으며 표면 거칠기 값은 500 ℃ 에서 제작한 박막에서 가장 낮은 값 (6.15 ㎚) 을 나타내었다. 모든 In₂O₃-ZnO 박막이 가시광 영역에서 평균 82 % 이상의 투과율을 보였다. 또, 500 ℃ 에서 제작한 In2O3-ZnO 박막에서 가장 높은 캐리어 농도 (2.46×10<SUP>20</SUP> ㎝<SUP>-3</SUP>) 값과 가장 낮은 비저항 (1.36×10<SUP>-3</SUP> Ω㎝) 값을 나타내었다. In this study, In₂O₃-ZnO thin films are prepared on quartz substrates by the pulsed laser deposition and their optical and electrical properties are investigated as the function of substrate temperatures (200 ~ 600 ℃) at the fixed oxygen pressure of 200 mTorr. The XRD measurement shows that polycrystalline In₂O₃-ZnO thin films are formed. In the XRD measurement, the intensity of the (400) In₂O₃ peak at 35.5° decreases and that of the (222) In₂O₃ peak at 30.6° increases with the increase substrate temperature up to 500 ℃. From the result of AFM measurement, the morphology of In₂O₃-ZnO thin films are observed as round-type grains. The lowest surface roughness (6.15 ㎚) is obtained for the In₂O₃-ZnO thin film fabricated at 500 ℃. The optical transmittance of In₂O₃-ZnO thin films are higher than 82 % in the visible region. The maximum carrier concentration of 2.46×10<SUP>20</SUP> ㎝<SUP>-3</SUP> and the minimum resistivity of 1.36×10<SUP>-3</SUP> Ω㎝ are obtained also for the In₂O₃-ZnO thin film fabricated at 500 ℃.
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도핑 농도와 열처리 온도에 따른 Al/doped ZnO 박막의 광학적 특성
신현호(Hyun-Ho Shin),강성준(Seong Jun Kang),윤영섭(Yung Sup Yoon) 대한전자공학회 2007 대한전자공학회 학술대회 Vol.2007 No.7
AZO thin films have been fabricated on quartz substrate with various Al doping concentrations and annealing temperatures by sol-gel method. The bset condition of (002) orientation and smooth surface (rms = 1.082 ㎚) is obtained for the AZO thin film doped with 1 mol % Al and annealed at 550 ℃. The optical transmittance of AZO thin films is higher than 80 % in the visible region. We observe that the energy band gap extends with increasing the Al doping concentration. This phenomenon is due to the Burstein-Moss effect.
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