기업규모와 연구개발투자에 관한 연구 ( 경제학문헌연보 주제분류 : O3 , O4 , E0 )

양준모,유승훈,이대식,지성권 ( Joon Mo Yang,Seung Hoon Yoo,Dae Sik Lee,Sung Kwon Chi ) 한국경제학회 1998 經濟學硏究 Vol.46 No.2

본 연구는 국가혁신체제의 효율화를 위한 선행과제로서 기업규모와 연구개발투자의 상호연관관계를 이론적으로 규명하고자 한다. 金秉汶(1992), 김종일 (1995), 李丙基(1992), 張眞圭 · 金基國(1993), 張眞圭 ·安斗鉉(1992) 등의 실증적 분석을 통하여 대체로 입증된 경험적 사실들을 이론적 모형을 통하여 설명하고자 한다. 이러한 경험적 사실에 대하여 Cohen · Klepper(1996)는 연구개발투자의 비용분담이론을 바탕으로 접근하고 있으나 본 연구에서는 기업의 내생적 선택이론을 바탕으로 접근하고 있다. 본 연구에서는 기업의 규모와 연구개발투자는 대체로 비례하며, 연구개발투자가 커짐에 따라서 그 생산성이 작아지는가의 여부는 기술여건 등 여러 조건 에 의하여 결정된다는 것을 밝혔다. 또한 동태모형을 통하여 경기변동과 연구개발투자, 연구개발 의 생산성, 그리고 총요소생산성 등의 관계를 규명하였다.

사람 손의 지연발광 특성

양준모,최준호,소광섭,임우택,이한상,채승병,윤세열,이경일,신은석,최선미,Yang, Joon-Mo,Choi, Chun-Ho,Soh, Kwang-Sup,Lim, Woo-Taek,Lee, Han-Sang,Chae, Seung-Byung,Yoon, Se-Yeol,Lee, Kyung-Il,Shin, Eun-Seok,Choi, Sun-Mi 한국광학회 2006 한국광학회지 Vol.17 No.1

6명 피험자의 손바닥과 손등의 일정 영역에 대해 광조사 시간과 파장을 변인으로 하여 빛을 조사한 후 되방출 되는 지연발광을 PMT를 검출기로 한 지연발광 검출장치를 이용하여 시간영역(time domain) 상에서 측정하였다. 광조사 시간을 바꾸어가며 지연발광 특성을 조사한 결과 광조사 시간에는 뚜렷한 의존성을 찾을 수 없었으나 각 피험자마다 지연발광의 세기, 지속시간 등에 있어서 다른 감쇄 특성을 보였다. 그리고 조사광의 파장(색깔)을 350${\~}$450 nm, 450${\~}$550 nm, 550${\~}$650 nm 세 영역으로 나누어 측정한 결과 350${\~}$450 nm영역에서는 강한 지연발광을 보였으나 나머지 영역에서의 지연발광은 상대적으로 미약함을 알 수 있었다. 사람 피부에서의 지연발광 현상은 피험자의 피부조직의 생리상태(활성산소의 농도)와 밀접한 관련이 있을 것으로 예상되며 인체피부 조직의 생리상태를 비침습적으로 진단할 수 있는 새로운 방법이 될 수 있음을 시사한다. Delayed luminescence from human hands after illumination by light at different wavelength bands was studied. A delayed luminescence measurement system equipped with photomultiplier tube (PMT), fiber optics and automatic mechanical shutter system was developed. Three spectrum band-pass filters, fer which transmissions are on 350${\~}$450 nm, 450${\~}$550 nm and 550${\~}$650 nm, were used to select irradiation wavelength, and 150W metal-halide lamp was used as an illumination source. Six volunteers put their palms (dorsa) onto the measurement system, and after light illumination, delayed luminescence were measured for 10 minutes. The results show that delayed luminescence after shorter wavelength illumination was higher than that a(ter longer wavelength one. These results indicate the existence of accepters in human skin which can be excited at short wavelengths. Furthermore, each subjects showed different delayed luminescence curve patterns. Reactive oxygen species (ROS) are known to have important roles on delayed luminescence, and this research suggests that ROS concentration can be measured noninvasively with optical methods.

Finn Chamber Occlusion 과 Histometry 를 사용한 수종 스테로이드제의 표피 위축에 대한 관찰

천영일(Young Il Chun),양준모(Joon Mo Yang),서명수(Myoung Soo Suh),은희철(Hee Chul Eun),이유신(Yoo Shin Lee) 대한피부과학회 1986 大韓皮膚科學會誌 Vol.24 No.5

The aim of this stud y was to compare the epidermal thinning properties of four corticosteroid ointments applied under occlusion, using histology and histometry. The results were surnmerized as follows: 1.The stratum corneurn was dramatically thinned, appearing as a wispy layer of horny cells as apposed to the norrnal basket-weave configuration. this effect was prominent at sites treated with clobestasol propionate, fluocinonide, and fluocinolone acetonide. 2. With the histometry, visible epidermal thickness wa.s markedly reduced. This effect w is prominent in the following ascending order: fluocinolone acetonide, fluocienonide, clobestasol-17-propionate. Hydrocortisone was the least atrophogenic. 3. Clohestasol-17-propionate and fluocinonide caused significant flattening of der- mo-epidermal junction, Fluocinolone acetonide and hydrocortisone caused less pronounced cbanges. 4. Marked capillary dilation af papilly dermis is caused by clobestasol-17-propionate, fluocinonide and fluocinolone acetonide.

근대건축물 보전 계획 방법에 관한 연구

양준모(Yang Joon-Mo),심우갑(Shim Woo-Gab) 대한건축학회 2007 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.27 No.1

Since the Registered Cultural Properties System has been enforced, conservation of domestic modem architecture has been actively evolved. This study aims to propose methods to improve the uses of modern architecture by reinterpreting and redeveloping them to comply to the contemporary era, which is the most positive conservation method. Therefore, with the aim to find practicable conservation methods, processes to establish conservation strategies and specifications, based on evaluations on their historicity, possible use of space, and value of preserved elements have been analyzed. Buildings located in Seoul and of over 50 years have been chosen for analysis. Analysis shows that the time in which conservation plans for the buildings are established can be categorized as either 'primary period', 'historical period', 'final developing period' and 'eclectic choice', and becomes the critical deciding factor in the selection of conservation method. The methods are as follows; 1) reaction between facade and the enlarged & remodeled space, composed of 'Juxtaposition' and 'insertion'. 2) 'primary preservation' and 'removing & reconstruction' for interior spaces. 3) enlargement in either 'horizontal extension', 'vertical extension', 'inter-reconstruction', and 'underground development'.

自然法과 國際法

梁俊模(Joon Mo YANG) 대한국제법학회 1982 國際法學會論叢 Vol.27 No.1

復刊辭

梁俊模(Yang Joon Mo) 한국법학원 1972 저스티스 Vol.10 No.1

접촉 피부염의 역학적 연구

양준모(Joon Mo Yang),이유신(Yoo Shin Lee) 대한피부과학회 1983 대한피부과학회지 Vol.21 No.2

Numerous studies on epidemiological aspects of contact dermatitis have been published in recent years since the introduction of a standardized method of patch test. We have performed the patch test on patients with contact dermatitis and on patients with other forms of dermatitis, A total of 153 patients were tested in this study between January 198l and August 1982. We have routinely attached 29 Hollister's standard batteries and 0. l% Tego, which is a commonly used antiseptic in our hospital, to the patients back. The tapes used were Leukotape and Finn chamber. Forty-eight hours after the tape had been attached, the patches were removed and read. The second reading was taken 24 or 48 hours after the patch had been removed. According to the results of this study, the most common allergens were cinnamic alcohol (11. 1%), ammoniated mercuric chloride (10. 5%), nickel sulfate (9. 2%), hydroxycitronellal(6. 5%), paraben mix(5. 9%), mercaptobenzothiazole(5. 9%) and thimerosal(5. 9%). In conclusion, cosmetics, metals, medicaments and rubber compounds were found to be the most common etiologic agents of contact dermatitis in this studyBackground and possible explanation of these rusults were discussed and a comparison was made between this report and others.

지급결제시스템 참여기관 수의 증가와 참여방식이 결제시스템에 미치는 영향

양준모 ( Joon-mo Yang ) 한국지급결제학회 2008 지급결제학회지 Vol.2 No.1

본 연구에서 의태분석을 통해 지급결제시스템의 특징과 지급결제시스템 참여기관 수의 증가와 참여방식이 결제시스템에 미치는 영향을 분석하였다. 분석결과 다음과 같은 결론을 얻었다. 첫째, 차액결제시스템은 총액결제시스템보다 유동성을 절약하는 효율적 시스템이다. 둘째, 차액결제시스템은 전염효과에 취약하며, 이를 방지하기 위해서는 중앙은행의 유동성 공급 등 안정성 보강조치가 대단히 중요하다. 셋째, 지급결제시스템의 비대칭적 계층화는 현행의 결제시스템보다 유동성 위험을 크게 증가시킨다. 넷째, 기존의 지급결제시장에서 참가금융기관들이 증가하면 그 만큼 결제시스템의 불확실성은 증가한다. 이러한 분석결과는 향후 지급결제시스템의 참여기관이 증가할 때, 결제시스템 안정을 위하여 참여방식과 참여자의 신용 등의 조건들이 매우 중요한 역할을 할 수 있다는 점을 시사하고 있다. The paper studied the relationship between the number of the participants and the stability across the different payment and settlement systems. In order to attain a concrete implication of the newly changed condition and qualification for participating the payment and settlement system, the paper performed the simulation analyses of the different systems. First of all, the simulation shows that the net payment system is more efficient but more likely to be contagious than the real time gross payment system. Moreover, the asymmetric tier structure tends to increase the possibility of the system collapse. Finally, as the number of participants increases, the uncertainty of the system increases. As a conclusion, the paper argues that both the way of participating in the net payment system and the number of the participants are very important factors in determining the stability of the payment and settlement system.

REM 증후군

양준모(Joon Mo Yang),김규한(Kyu Han Kim),김선훈(Seon Hoon Kim),이유신(Yoo Shin Lee) 대한피부과학회 1983 대한피부과학회지 Vol.21 No.5

We present a case which seems identical to REM(Reticular Erythematous Mucinosis) syndrome in 26 year-old male. The lesion was initiated about 2 years ago and waxed and waned. The clinical findings were localized, grouped, erythematous papules and vesicles on the anterior middle chest with intermittent mild itching. Histopathology showed normal epidermis, extensive mucin deposition, telangiectasia and mild perivascular round cell infiltrations on the upper dermis. The mucin was stainable with alcian blue at pH 2. 5, but was not stained by either PAS or mucicarmine. Skin lesions were not responded to the oral steroid, but improved slowly after topical application of 5% para-aminobenzoic acid in ethanol for 9 months. The lesion does not recur until present time.

Quaternium - 15 접촉피부염

양준모(Joon Mo Yang),은희철(Hee Chul Eun),이유신(Yoo Shin Lee) 대한피부과학회 1983 대한피부과학회지 Vol.21 No.5

Quaternium-15 (Dowicil 200) which is a water-soluble antimicrobial agent and a formaldehyde releaser is widely being used as a preservative in cosmetics and medicaments these days. However, there are scanty reports about it in the Korean literature. Recently, we have experienced two cases of Quaternium-15 contact dermatitis probably related with their cosmetics and topical medicament, respectively. We report our cases with the patch test results.