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      • KCI등재

        조선후기에 "카메라 옵스큐라"로 초상화를 그렸다 -정조 시절 정약용의 증언과 이명기의 초상화법을 중심으로

        이태호 ( Tae Ho Lee ) 다산학술문화재단 2005 다산학 Vol.- No.6

        Tasan put camera obscura which is a perspective of the pin-hole camera to the test and testimony in 1987, and there is a possibility of using in the portrait paintings drawn by Lee Myunggi. The fact that Lee drew portrait paintings using camera obscura would be just a hypothesis until the real documents come out. However the portrait paintings made by Lee having a expression of a three-dimentional effect on corrugation, taking a pose exposed hands, and handling oblique lines on the floor similar to perspective, have a new change by something external. At a guess the thing changed Lee`s art of drawing would be the influence of camera obscura coming from China. Especially at Yu Unho painting made in 1789 there is a phrase that YongCheJangHwal(容體長闊) ShiWonShinGamIlBan(視元身減一半) which it means the reduction ratio of a portrait. Making the recuction ratio of a portrait clear and the beauty of form show the certain fact of using camera obscura. Needless to say, by Tasan`s testimony we can be proud that camera obscura was used in the late Chosun. There are little cases on the evidence or document using camera obscura in the 16th to 19th centuries Western painting history. In this point, the thing which Tasan tested camera obscura and the portraits by it drew, is very valuable in the world scientific history and the painting history. In a way, Tasan and Lee`s test and testimony were very important, as the entering 19th century their achievements remained obscure. Choi Hangi, Lee Kyugyong, and others partly tested optical instruments, but realism of paintings rapidly declined. Lee`s portraits are simple and plain in comparison with Western portraits taking well lighting. But In Lee`s portraits are worth well seeing the using of camera obscura. In the view of exposing the truth of the object, the exploiting on the stereography suitable for our face and clothing is brilliant artistry. So Lee`s portraits can be a good classical example having realism and modernity in the late Chosun cultural history.

      • 세계 5개국에서 생산된 황색종 잎담배의 주요 향기성분 비교

        이태호,신경은,이재현,이은석,한병석,임흥빈,Lee Tae-Ho,Shin Kyung-Eun,Lee Jae-Hyun,Lee Eun-Sung,Han Byung-Seuk,Lim Heung-Bin 한국연초학회 2004 한국연초학회지 Vol.26 No.2

        The present study was carried out to compare the composition of major essential oil components in the flue-cured tobacco produced by Korea, America, China, Brazil and Zimbabwe. Above 100 essential oil components were separated by GC and major 18 components of them, known to be important contributors to flue-cured tobacco flavor and smoke taste, were identified by GC/MS. Neophytadiene was major in quantities in the oils mostly and its composition in flue-cured tobacco produced by Korea, America, Zimbabwe, Brazil, and Unnam and Yenji region of China was 26.82\%,\;25.17\%,\;26.50\%,\;16.92\%,\;and\;18.75\%\;and\;14.87\%$, respectively. Megastigmatrienone, one of the major tobacco carotenoid degradation products was contained above $10\%$ in the oils of flue-cured tobacco produced by Korea and America, but, it was comprised about $5.66\%$ to 8.00 in Brazil, Zimbabwe, and Unnam and Yenji region of China. Damascenone is important to the aroma of tobacco as a crotenoid degradation products. Its amount in the oils was $3.31\%\;in\;Brazil,\;3.13\%\;in\;America,\;2.57\%\;in\;Zimbabwe,\;2.54%$ in Yenji of China, $2.00\%$ in Korea and $1.85\%$ in Unnam of China. These results can furnish the basic information capable of evaluating the quality value of flue-cured tobacco produced by various nations.

      • KCI등재

        CoDisplay : 대형 디스플레이 장치를 활용하기 위한 VNC 기반회의도구

        이태호,박지혜,이기훈,이명준,Lee, Tae-Ho,Park, Ji-Hye,Lee, Ki-Hoon,Lee, Myung-Joon 한국정보통신학회 2009 한국정보통신학회논문지 Vol.13 No.8

        최근 대형 디스플레이 장치를 활용한 의사전달행위가 보편화되고 있다. 따라서 효과적인 의사전달을 지원할 수 있도록 대형 디스플레이 장치를 효율적으로 공유하는 것이 바람직하다. VNC(Virtual Network Computing)는 데스크톱 공유 도구로서 다른 지역에 위치한 컴퓨터로 데스크톱 화면을 전송할 수 있다. 또한 VNC를 이용하여 두 명 이상의 사용자가 동시에 같은 데스크톱 화면을 사용할 수 있다. 그러나 현재 VNC가 지원하는 기능만으로 대형 디스플레이 장치를 효율적으로 공유하는 것은 어려운 일이다. 본 논문에서는 VNC를 이용하여 대형 디스플레이 장치를 공유하는 회의도구인 CoDisplay 개발에 대하여 기술한다. 회의 참가자들은 네트워크 주소를 이용하여 대형 디스플레이 장치에 접속하며 자신의 데스크톱 화면을 내장된 VNC를 이용하여 전송한다. 또한 여러 데스크톱 화면을 배열하고 전환하는 기능을 통하여 대형 디스플레이 장치를 효과적으로 공유할 수 있다. Since wide display devices have recently become popular for communication activity, it is desirable for effective communication to share those displays in an efficient way. VNC(Virtual Network Computing) is a desktop sharing software, which transmits the desktop screen and the related events to other computers on different places. So, through VNC, it is possible for more than two users to share the same desktop screen at the same time. But it is very cumbersome to share wide display devices through the functions currently supported by VNC. In this paper, we describe the development of CoDisplay which is a VNC-based conference tool for efficient sharing of a wide display device. Conference participants connect to the wide display device through the associated network address, and transmit their desktop screen to the device. The control functions for the participants support the division of the display screen for multiple desktop screens and the switchover of desktop screens.

      • KCI등재

        소결온도에 따른 (Na<sub>0.465</sub>K<sub>0.465</sub>Bi<sub>0.07</sub>)(Nb<sub>0.93</sub>Ti<sub>0.07</sub>)O<sub>3</sub>-0.08MnO<sub>2</sub> 세라믹스의 구조적, 전기적 특성

        이태호,여진호,이성갑,Lee, Tae-Ho,Yeo, Jin-Ho,Lee, Sung-Gap 한국전기전자재료학회 2012 전기전자재료학회논문지 Vol.25 No.7

        In this study, lead-free $(Na_{0.465}K_{0.465}Bi_{0.07})(Nb_{0.93}Ti_{0.07})O_3-0.08MnO_2$ ceramics were fabricated by conventional mixed oxide method. Structural and electrical properties of lead-free $(Na_{0.465}K_{0.465}Bi_{0.07})(Nb_{0.93}Ti_{0.07})O_3-0.08MnO_2$ ceramics with the variation of sintering temperature were investigated. As results of x-ray diffraction analysis, all specimens showed a typical polycrystalline perovskite structure without presence of the second phase. Sintered density increased with an increases of sintering temperature and the specimen sintered at $1,020^{\circ}C$ showed the maximum value of 4.5 $g/cm^3$. The average grain size of the $(Na_{0.465}K_{0.465}Bi_{0.07})(Nb_{0.93}Ti_{0.07})O_3-0.08MnO_2$ specimen sintered at $1,020^{\circ}C$ is about 0.83 ${\mu}m$. Electromechanical coupling factor, relative dielectric constant and dielectric loss of $(Na_{0.465}K_{0.465}Bi_{0.07})(Nb_{0.93}Ti_{0.07})O_3-0.08MnO_2$ specimens sintered at $1,020^{\circ}C$ were 0.252, 741 and 0.043% respectively.

      • KCI등재

        비냉각형 적외선 센서로 응용하기 위한 반도성 YBa<sub>2</sub>Cu<sub>3</sub>O<sub>6+x</sub> 박막의 열처리 온도에 따른 구조적 전기적 특성

        이태호,이성갑,여진호,정혜린,Lee, Tae-Ho,Lee, Sung-Gap,Yeo, Jin-Ho,Jung, Hye-Rin 한국전기전자재료학회 2013 전기전자재료학회논문지 Vol.26 No.10

        YBCO thin films on $SiO_2$/Si substrate were fabricated by spin-coaing of an alkoxide-derived precursor and heat treatment. The structural and electrical properties of the YBCO films were investigated as functions of annealing temperature at $600{\sim}800^{\circ}C$. Although YBCO single phase was not synthesized, dense films of YBCO matrix phase and minor second phases have been successfully fabricated at the annealing temperatures of $650{\sim}800^{\circ}C$. Thickness and temperature coefficient of resistance (TCR) of YBCO thin films with annealing temperature of $750^{\circ}C$ were 0.31 ${\mu}m$ and $-2.92%/^{\circ}C$, respectively.

      • SCOPUSKCI등재

        발살바동 동맥류 파열의 임상적 고찰

        이태호,이동원,조준용,현명철,이상범,Lee, Tae Ho,Lee, Dong Won,Cho, Joon Yong,Hyun, Myung Chul,Lee, Sang Bum 대한소아청소년과학회 2006 Clinical and Experimental Pediatrics (CEP) Vol.49 No.3

        목 적 : 발살바동 동맥류는 선천성으로 발생하며 비교적 드문 질환이나 파열시 급성 심부전으로 진행되어 사망할 수 있으므로 수술만이 유일한 치료방법이다. 이에 저자는 지난 14년간 발살 바동 동맥류 파열로 수술을 받은 환자들을 대상으로 임상적 특징 및 수술 결과에 대하여 알아보고자 하였다. 방 법 : 이번 연구는 1990년 1월부터 2004년 2월까지 경북대학교병원에서 발살바동 동맥류 파열로 진단 받은 17명의 환자를 대상으로 임상증상, 이학적 소견, 과거병력, 동반 심질환 유무, 수술소견 및 장기적인 예후에 대하여 조사하였다. 결 과 : 남자가 13례, 여자가 4례 였으며, 평균연령은 $30{\pm}12.5$세(10-59세)였다. 술전 시행한 초음파 검사상 동반된 심질환으로는 심실 중격 결손이 8례(모두 이중연관 동맥하 결손), 대동맥 폐쇄부전이 11례에서 관찰되었다. 수술 소견상 누공의 위치는 우관상 동맥동-우심실 13례, 우관상 동맥동-우심방 1례, 비관상동맥동-우심실 2례 그리고 비관상 동맥동-우심방이 1례였으며, 심실 중격 결손이 14례에서 관찰되었으며, 모두 이중연관 동맥하결손이었다. 수술방법은 13례에서 첩포봉합, 4례에서 단순봉합을 실시하였으며, 대동맥판막 치환술은 4례, 대동맥판막 성형술은 2례에서 시행되었다. 수술로 인한 사망은 한 례도 없었으며, 추적 관찰기간($40{\pm}49$개월) 중 심질환으로 사망한 례도 없었다. 결 론 : 발살바동 동맥류는 많은 환자에서 심실 중격 결손, 특히 이중연관 동맥하 결손을 동반하므로, 심초음파 검사를 시행할 때 이 결손을 찾기 위해 세밀한 주의가 필요하다. 나아가서 크기가 작은 이중연관 동맥하 심실 중격 결손의 치료 방침도 재조명할 필요가 있을 것이다. Purpose : Aneurysms of sinus valsalva are rare anormalies thought to be primarily congenital in origin, progressing into death by acute heart failure in cases of rupture. Surgical correction is the only method of treatment. With these clinical implications, we reviewed the clinical characteristics and surgical results of patients with ruptured sinus of valsalva aneurysm. Methods : Between January 1991 and February 2004, 17 patients with ruptured sinus of valsalva aneurysm were retrospectively reviewed for their clinical symptoms, physical findings, past history, coexistent cardiac anormalies, surgical results, and mid-term prognosis. Results : The 17 patients included 13 men and four women, with a mean age of 30 years(10-59 years). Preoperatively accompanying cardiac anormalies were ventricular septal defect(VSD, eight cases of doubly committed juxta-arterial VSD) and aortic insufficiency(11 cases). During operations, patterns of fistulous tracts were found to be right colonary sinus-right ventricle in 13 patients, right coronary sinus-right atrium in one, noncoronary sinus - right ventricle in two, noncoronary sinus - right atrium in one, and VSD was noticed in 14 patients(all were doubly committed juxta-arterial in type). The defects were closed with a patch in 13 patients, without a patch in four, with concommitant aortic valve replacement in four and with aortic valvuloplasty in two. There were no mortalities during operations or the mid-term follow-up periods($40{\pm}49$ months). Conclusion : Because, at least in Orientals, VSD(especially doubly committed juxta-arterial) was accompanied in large numbers of patients with aneurysms of sinus valsalva, preoperative evaluations of this congenital heart disease should be made very careful. And we may need to revise the algorithm of treatment policy in small sized doubly committed juxta-arterial VSD.

      • SCOPUSKCI등재

        실리콘 질화막을 이용한 X-ray Lithography마스크용 박막물질의 개발

        이태호,정창영,이규한,이승윤,안진호,Lee, Tae-Ho,Jeong, Chang-Yeong,Lee, Gyu-Han,Lee, Seung-Yun,An, Jin-Ho 한국재료학회 1997 한국재료학회지 Vol.7 No.5

        본 연구에서는 LPCVD, PECVD, ECR plasma CVD방법을 이용하여 x선 노광 공정용 마스크의 투과막재료로써의 실리콘질화막의 증착과 그의 물성에 관하여 실험하였다. X선 노광 마스크용 투과막의 재질로써 요구되는 적정인장응력에 가지는 증착조건으로 실리콘질화막을 1$\mu\textrm{m}$정도의 두께로 증착하였으며 이 조건에서의 물성을 SIMS, XPS, ESR, AFM, spectrophoto-metry를 이용하여 비교 분석하였다. ECR plasma CVD방법으로 얻은 실리콘 질화막은 화학양론적 조성(Si/N=0.75)에 근접하는 막을 얻을 수 있었으며 표면 평활도와 가시광투과도가 가장 우수한 결과를 얻었다. 저온 증착법인 PECVD로 얻은 막은 Si/N비가 약 0.86정도이고 산소와 수소의 불순물함량이 가장 높게 나타났다. SiH$_{2}$CI$_{2}$를 이용한 LPCVD막의 경우는 Si-rich조성을 가지지만 수소 불순물의 함량이 가장 작게 나타났고 표면거칠기는 가장 나쁘게 나타났다. 그러나 위의 방법으로 얻은 실리콘 질화막의 최대 가시광투과도는 633nm파장에서 모두 90%이상의 값을 나타내었고, 또한 표면 평활도도 0.64-2.6nm(rms)로 현재 연구되고 있는 다른 X선 투과막재료보다 월등히 우수한 결과를 보였다.

      • KCI등재

        과공정 Al-Si 합금에서 초정 미세화 및 공정 Si 의 개량화에 관한 연구

        이태호,임성철,김정호,이창희,윤의박 ( Tae Ho Lee,Sung Chul Lim,Jeong Ho Kim Chang Hee Lee,Eui Pak Yoon ) 한국주조공학회 1996 한국주조공학회지 Vol.16 No.4

        N/A Hypereutectic Al-Si alloys have many advantages such as excellent wear resistance, high ratio of strength to density, good castability (esp. fluidity) and elevated strength. However, in casting process, the segregation of coarse primary Si and flake eutectic Si decrease mechanical properties. In this study, using AlCuP refiner and Sr modifier, it is intended to obtain simultaneous effects of refinement of primary Si and modification of eutectic Si in hypereutectic Al-Si alloys, to measure hydrogen gas contents and to evaluate mechanical properties. Experimental results show that in the case of simultaneous effect of refinement of primary Si and modification of eutectic Si, two step addition that modifier is added into melt after refiner addition at 750℃ is more effective than simultaneous addition of modifier and refiner at 750℃ in terms of microstructure and hydrogen gas control. All mechanical properties tested were found to be improved by refinement of primary Si and modification of eutectic Si.

      • KCI등재후보

        요각통 환자에 대한 Bee Venom과 Sweet Bee Venom의 효능 비교 연구

        이태호,황희상,장소영,차정호,정기훈,노정두,이은용,Lee, Tae-Ho,Hwang, Hee-Sang,Chang, So-Young,Cha, Jung-Ho,Jung, Ki-Hoon,Roh, Jeong-Du,Lee , Eun-Young 대한약침학회 2007 Journal of pharmacopuncture Vol.10 No.3

        Objective The aim of this study is to investigate if Sweet Bee Venom therapy has the equal effect in comparison with Bee Venom Therapy on Low back pain with Radiation pain. Methods Clinical studies were done 24 patients who were treated low back pain with radiation pain to Dept. of Acupuncture & Moxibusition, of Oriental Medicine Se-Myung University from April 1, 2007 to September 30, 2007. Subjects were randomly divided into two groups ; Bee Venom treated group(Group A, n=10), Sweet Bee Venom treatred group(Group B, n=14). In Bee Venom treated group(Group A), we treated patients with dry needle acupuncture and Bee Venom therapy. In Sweet Bee Venom treatred group(Group B), we treated patients with dry needle acupuncture and Sweet Bee Venom therapy. All process of treatment were performed by double blinding method. To estimate the efficacy of controlling pain. we checked Visual Analog Scale(VAS). For evaluating functional change of patients, Straight Leg Raising Test(S.L.R.T) was measured. Results 1. In controlling pain, Sweet Bee Venom treatred group(Group B) had similar ability in comparison with Bee Venom treated group(Group A). 2. In promoting function, Sweet Bee Venom treatred group(Group B) had similar ability in comparison with Bee Venom treated group(Group A). Conclusions It may be equal effects as compared with using Bee Venom to treat low back pain with radiation pain using Sweet Bee Venom. We can try to treat other disease known to have effect with Bee Venom.

      • KCI등재

        다발성 신경병증 및 근병증으로 추정되는 환자의 치료 2례에 대한 증례보고

        이태호,황희상,장소영,차정호,정기훈,이은용,Lee, Tae-Ho,Hwang, Hee-Sang,Chang, So-Young,Cha, Jung-Ho,Jung, Ki-Hoon,Lee, Eun-Young 척추신경추나의학회 2007 척추신경추나의학회지 Vol.2 No.1

        '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 9시까지 원문보기가 가능합니다.

        Objective : Poly neuropathy is disease that reveals musle relaxation or sensory disorder, and Myopathy is disease that reveals musle weakness, wasting, pain. These diseases occur in the lower or upper limbs. This is the clinical report about Poly neuropathy or Myopathy estimated patients. Method : Patients were treated by acupuncture, herb medicine, bee venom herbal-acupuncture, moxibustion. We evaluated the improvement of symptoms with ROM(Range of Motion) and MCR(Medical Research Council) standard. Result : Symptoms that patients have at admission improved and disappered gradually with oriental medicine therapy. Observing the change of ROM and MCR standard, they indicated us improvement of disease. Conclusion : We achived a desirable result from treatment of peripheral neuropathy or myopathy estimated patients. However, further studies are required to prove the effect of oriental medicine treatment.

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