눈의 苛性「소다」傷의 治療에 關한 實驗的硏究

梁在雄 中央醫學社 1963 中央醫學 Vol.5 No.2

There have been no definitely reliable means of treating alkali burns of the eye in the past. Herewith, the present investigation was undertaken to establish the most ideal and app: op date therapeutic regimens for alkali burns of the eye experimentally induced in the rabbits. The rabbits were anesthetized with pentobarbital sodium (30mg/kg; I. V.) and 2 ml. of 1/10 N. NaOH solution was applied locally to the eye for 5 minutes. The eye was then irrigated with, unless stated otherwise, normal saline for 5 minutes. Immediately following the production of the burn, the following therapeutic measures were applied for a period of up to 8 weeks:. A. Non-s argicaI treatment: 48 animals were subdivided into the following 4 groups:, a) Control group: No therapeutic measure was applied. b) Cortisone group: One or two drops of 0.5% cortisone acetate suspension was instilled every 2 hrs during the daytime and 1.5% cortisone acetate ointment was locally applied at night. . c) Acetic acid group: 1% acetic acid was used to irrigate the eye for 15 minutes. In this group, the washout with normal saline was omitted. d) Ammonium tartrate group: One or two drops , of 10% neutral ammonium tart-rate solution was instilled 4 times a day. B. Surgical treatment: 54 animals were subdivided into the following 3 groups. a) Control group: No treatment was gbien. b) Homograft group: The homograft was performed on the palpebral conjunctiva and on the bulbar conjunctiva alone or with the upper part of the cornea. Having performed the homograft operation 1% atropine sulfate ointment and 0.5% oxytetracycline ophthalmic ointment were applied locally twice a day. c) Heterograft group: Human amniotic membrane was used for this group and the transplantation was performed on the bulbar conjunctiva. The amniotic membrane was stored in a refrigerator (4°C) for 16―24 hrs prior to the operation. The postoperative care as described for the previous group was also given. Following these treatments, the , eye was enucleated at scheduled time intervals and were fixed in 10% formaline solution before the histological sections were made. These sections were stained with hematoxyline and eosin. The degree of healing was judged by stological examination. A) Non- surgical group: Severe inflammatory reaction and marked postinflaminatory result such as pseudopterygium and symblepharon was formed in the control group. Cortisone was most effective in minimizing the inflammatory reaction and also in resulting sequelae such as neovascularization into cornea and symblepharon. Newly formed vessels in cornea was faint, short in length and much less in number than other groups. The onset of vascularization in cornea was slightly delayed. Fibrous scar formation of subconjunctival tissue and symblepharon was less significant than other groups. Corneal reepithelization was not delayed or interfered by local treatment with cortisone. Neutralization with 1% acetic acid solution was not effective but rather harmfulthan control group. Neutral ammonium tartrate solution did not help the clearance of corneal opacity and consequently brought similar results with control group. B) Surgical group: Regardless of the site of transplantation, the homograft with the conjunctival mucous membrane after removal of the traumatized necrotic tissue worked excellently for minimizing reaction and reducing the resulting sequelae. Symblepharon was little or none. Pseudopterygium was not seen in these groups, although it was common in the nonsurgically treated groups. The homograft on the palpebral conjunctiva or on the bulbar conjunctiva and the upper part of cornea caused a marked fibrous scaring and extensive neovascularization of the cornea. Transplantation to a portion of the bulbar conjunctiva was most effective in minimizing the inflammatory reaction, fibrous scar formation, and neovascularizion of the cornea. The amniotic membrane had a marked tendency to shrink after the transplantation. This is a serious handicap as compared with the homograft using the conjunctiva. However, this membrane took well after the transplantation . and the host conjunctival epithelium grew over this membrane. This minimized the reaction and resulting. sequelae. Amniotic membrane can be used as a substitute for the homograft with relatively, good results. judging from these results, in the non-surgical group, the ideal treatment for the alkali burn with NaOH is the immediate, thorough washing with water or saline solution and applicationof cortisone. Results of surgically treated group were much. better than non-surgically treated group, but these groups did not work satisfactorily in clearing the corneal opacity. It is probably due to a severe primary damage of the corneal tissue by alkali.

청도 크로바농장의 수박재배방법

양재웅 慶北大學校 農業開發大學院 1998 最高農業經營者課程 論文集 Vol.4 No.-

Strip 육성용접에 의한 Clad 판재의 제조공정 및 미세조직에 관한 연구

양재웅 대진대학교 1996 大眞論叢 Vol.4 No.-

I designed the overlay welding machine for strip cladding and tried to seek the conditions of optimum manufacturing process and study the microstructures of the wear-resistance and the anti-corrosive clad plate. The overlay welding was performed by a autogeneous submerged arc welder equipped with cooling and JIG system to minimize the dilution of cladding metal and prevent the distortion of mild steel used as a base plate. Cladding metals were overlayed by single or double layer depositions onto the base plate with 9mm and 40mm thickness to form over 3mm deposit thickness by using each different strip electrodes (high Cr stainless strip and austenitic stainless strip) and agglomerated medium alloyed fluxes. First of all, I determined the optimum manufacturing conditions for strip cladding through the modified experimental modelling. Second, Investigation has been made through the chemical analysis, the microscope observation and the microvickers hardness tester to examine the changes of compositions, the crack susceptibility of weld metal and those of microstructure and hardness from interface to surface according to variables of welding process.

레스토랑 이용자의 착석 행태에 관한 연구

양재웅 중앙대학교 대학원 건축미술학과 1992 建美論叢 Vol.2 No.-

색채 계획

양재웅 중앙대학교 대학원 건축미술학과 1991 建美論叢 Vol.1 No.-

한국 창호에 관한 연구

양재웅 중앙대학교 대학원 건축미술학과 1991 建美論叢 Vol.1 No.-

고온 반사로 내의 온도분포에 관한 연구

양재웅 대진대학교 첨단소재연구소 2000 첨단소재연구소논문집 Vol.3 No.-

Rapid thermal furnace in which heating elements are IR(Infra-red) lamps is known as the good efficient heating furnace with a rapid heating and cooling, a good reliability and stability in service and a wide uniform zone at high temperature, thereby improving the value in use at severe atmosphere. These furnaces utilize 100% of the radiant heat emmitted by the lamps and thus are able to reach the high temperature in a much shorter period of time than the resistant heating furnaces. The heating elements are securely mounted on standard flanges in the curved reflection mirror coated by gold. It is important to know the temperature profiles and uniform zone on reaction tube in rapid thermal furnace as a basic data because there are many variables of heating sources such as conduction, convection, radiation and reflection. At this research, prepared furnace was tested by the thermocouples to investigate the thermal distribution through the reaction tube and compared in use of blackbody with in use of only lamp.

點狀表層角膜炎

梁在雄 大韓眼科學會 1963 大韓眼科學會雜誌 Vol.4 No.1

주짓수 스파링 시 포지션과 라운드진행에 따른 혈중 젖산농도 및 상체 활동근의 압통역치 변화

양재웅,윤철,고성식,김기홍 대한무도학회 2020 대한무도학회지 Vol.22 No.2

본 연구의 목적은 주짓수 토너먼트 시합을 가정하여 고강도 스파링을 실시하여 각 라운드별 직후와 24,48,72시간 후 혈중젖산농도를 측정해 피로수준과 회복경향을 알아보고, 선정한 상체근육 9부위의 통증정도를 파악하고자 하였다. 연구대상은 전국 주짓수 대회 참가·경력자 20명을 표집, 2집단으로 각각 10명씩 무선 배정하였으며, 휴대용 젖산측정 / 압통측정 장비를 이용하여 각 변인을 측정하였다. 이원분산분석에 따른 사후비교 결과, 첫째, 스파링 시 젖산농도수준은 시기별에는 유의한 차이가 나타났고, 포지션과 시기별 간 상호작용에서는 유의한 차가 나타나지는 않았으나, 상위포지션집단에서 젖산이 높게 나타나는 경향을 보였다. 둘째, 압통척도는 라운드 전과 비교하여 4라운드 직후와 24, 48, 72시간 후에 유의한 차를 보였으며(p<.05), 포지션과 시기별 압통역치 간 상호작용에서삼두근(p<.05), 이두근(p<.05), 전완굴근(p<.05), 복직근(p<.001)은 유의한 차이를 나타내었다. 이상의 결과, 상위포지션에서 각 라운드 후와 시기별로 젖산농도 수준이 높게 나타났고, 9부위의 근육들 중삼두근, 이두근, 전완굴근, 복직근의 사용이 하위포지션에 비해 많은 것으로 나타났다. 따라서 고강도 불완전 휴식형태 트레이닝을 통한 높은 젖산수준에서의 운동수행력 증가는 주짓수 수련자들의경기력 향상에 도움을 줄 것이라고 사료된다. The purpose of this study was to investigate the fatigue level and recovery tendency of blood lactic acid concentration after 24, 48, 72 hours and after each round, and to investigate the pain level of the upper body muscle 9 selected by the high intensity sparring on the assumption of the Jujitsu tournament.,The subjects of this study were 20 participants and 20 experienced participants in the national jujitsu competition, and 10 participants were randomly assigned to each group. Each variable was measured using portable lactic acid measurement / pressure pain measurement equipment. As a result of post-comparison according to two-way ANOVA, first, the level of lactic acid in sparring showed a significant difference by period, and there was no significant difference in interaction between position and period, but the Top position group showed a tendency to show high lactic acid due to repeated use of Upper extremity small muscles. Second, the pressure pain threshold showed a significant difference after 4 rounds, 24, 48, 72 hours, compared to before round (p<.05). there was a significant difference in the triceps (p<.05), biceps (p<.05), Wrist flexor (p<.05) and rectus abdominis(p<.001). The results showed the increase of exercise performance ability at lactic acid through high intensity incomplete resting type of training will helpful to improve jiu jitsu performance.

葡萄膜炎(內因性)의 治療

梁在雄 大韓眼科學會 1962 大韓眼科學會雜誌 Vol.3 No.1