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이병호,박찬일,이준모,Lee, Byung-Ho,Park, Chan-Il,Lee, Jun-Mo 대한미세수술학회 2011 Archives of reconstructive microsurgery Vol.20 No.1
Purpose: To evaluate the effect of intermittent bleeding method in the distal phalanx replantation. Materials and Methods: From January 2007 through June 2009, authors have replanted 117 cases of distal phalangeal amputation in adults at Soo Hospital and Chonbuk National University Hospital. Cases of zone II were 60 cases and zone III 57 according to Allen classification. Male to female ratio was 8.7:1.3. The most common cause was machinery injury in the factory, 98 cases(83.8%), next one was belt injury of the machine, 11 cases(9.4%) and others, 8(6.8%). At least one digital artery and digital nerve were anastomosed under the operating microscope, but vein was impossible to anastomosis as unable to find out in the zone II and III. After anastomosis of one or more digital arteries and nerves, heparine(6,000-10,000 units) was kept to intravenous injection for 24 hours and at the same time fish mouth incision in 2-3 millimeter diameter was made in the distal radial and ulnar margin of the replanted distal phanlanx. From the first 30 minutes to an hour after replantation, incision site was swabbed with heparinized cotton ball for 5 minutes in every 30 to 40 minutes to make sure perfusion for 24 hours, every an hour at the second day, every two hours at the postoperative third to fifth day. Results: 92 cases(78.6%) was completely survived at average postoperative third week follow-up and satisfied with preservation of the finger nail, digit length, good range of motion of the distal interphalangeal joint and acceptable sensibility at average 1.2 years follow-up. Conclusions: Intermittant bleeding method in replantation of crushed distal phalanx impossible to anastomosis of vein at zone II and III of Allen classification was regarded as one of the notable salvage procedure.
이병호,최경식,Lee, Byeong-Ho,Choe, Gyeong-Sik 한국정보디스플레이학회 2002 인포메이션 디스플레이 Vol.3 No.3
본 소고에서는 개인용 휴대 전화나 PDA, 캠코더, 디지털카메라, 소형 PC나 휴대용 PC 등에 적용할 수 있는 소형 반사형 액정 디스플레이 시스템과 전면 광원 장치에 관한 기술들을 논의 하였다. 반사형 액정 디스플레이 시스템은 가볍고 얇으며, 저 비용으로 낮은 전력소모를 얻을 수 있다는 장점을 가지고, 고휘도화와 높은 콘트라스트, 넓은 시야각등을 목표로 많은 연구들이 진행되고 있다. 이러한 반사형 액정 디스플레이 시스템의 문제점들과 이를 해결하기 위해 제안된 주요 방법들을 소개하였고, 국내외 관련 연구 동향에 대해 기술하였다. 또한 전면 광원 장치용 도광판을 설계하기 위한 기법과 설계 결과를 제시하였다.
이병호,Lee, Byung-Ho 대한기계학회 1978 대한기계학회논문집 Vol.2 No.3
An acoustical rating for the occupied hall of our National Theatre is presented for symphony orchestra and opera by theoretical estimation of various acoustical qualities from the basis of measured reverberation times in its vacant stste. The result is that by serious poverty of liveness a romantic music, typical symphony orchestra and even classical music are very difficult to be performed and only a baroque music is scarcely allowable to be performed in this hall. As for opera, wagnerians are difficult and italians are performable to some extent. Some discussions are given for which defects are more serious in this hall and some possible accustical corrections are also suggested for its better performance.
집적 영상(Integral photography) 기술을 이용한 3차원 디스플레이
이병호,Lee, Byeong-Ho 한국정보디스플레이학회 2002 인포메이션 디스플레이 Vol.3 No.2
본 논문에서는 무안경식 3차원 디스플레이 기술 중 최근 주목 받고 있는 집적 영상 기술에 관하여 논의한다. 초기 집적 영상 기술의 문제점들과 이를 해결하기 위해 제안된 주요 방법들을 소개하고, 최근 해외 및 국내의 관련 연구 동향에 관하여 기술한다.
이병호,서정일,Lee, Byung-Ho,Suh, Jung-Il 대한설비공학회 1981 설비저널 Vol.10 No.1
In this paper, a new performance equation of bath tubs has been derived, which is very characteristically illuminating and in good agreement with experiments : $$T=T_{\infty}+(T_0-T_{\infty})e-\frac{k(A'_f+A_0)}{Mc_{P{\Delta}x}t$$, where $T_{\infty}$ is the temperature of the bathroom, $T_0$ that of the bathwater at t=0, k the overall heat conductivity of the tub- wall, $A'_f$ the equivalent surface area to the wall, $A_0$ the submerged area of the tub-wall, M mass of the bath-water, $C_p$ the specific heat of the bathwater and ${\Delta}x$ the thickness of the tub-wall. Here the equivalent-free surface area is written as $$A'_f=mA_f,\;m=const.(1-{\phi})^{0.88}$$ : where m is a numerical factor which is determined by a simple experiment and some calculation, {\phi}$ the relative humidity and $A_f$ the real free-surface area. From this study, it has been clarified that cooling of bath-water is mainly due to mass-transfer through evaporation from the free surface and conductive heat loss through the tub-wall is minor, which rather gaily mock at common sense. The effect of keeping bathwater warn by increase of the tub-wall thickness is also analyzed by a new idea of the thickness gain factor.