해암(海巖) 김형규(金亨奎) 선생 연보

김형규 서울대학교 국어교육과 2011 先淸語文 Vol.39 No.-

공비증류에 의한 MEK - 물 - 톨루엔 혼합물로부터 MEK 분리에 관한 이론적 연구

김형규,김성훈,한춘,나병기,송형근 한국화학공학회 1996 NICE Vol.14 No.3

PSC I형 거더 실물 모형체 실험을 통한 동적거동특성 분석의 실용적 모델링 기법 연구

김형규,장일영 한국구조물진단유지관리공학회 2018 한국구조물진단유지관리공학회 논문집 Vol.22 No.6

교량 구조물 거동의 건전성 평가는 하중재하-처짐의 정적특성과 충격계수와 고유진동수 등의 동적특성으로 평가하는 것이 일반적이며, 이를 수치해석적 방법으로 비교 분석하는 것이 합리적인 방법이라 할 수 있다. 사용하중에 대한 거동은 탄성영역에서 이루어지므로 실물 구조체와 수치해석의 결과는 일체성을 보이지만, 동적특성의 경우 특히, 진동학적 분석에 있어서는 구조물의 기하형상과 사용재료의 이질성 에 기인하여 실물 구조체의 결과와 다소 차이를 보인다. 이러한 오차를 수렴시키기 위하여 본 연구는 실물 모형체의 실험결과를 바탕으로 다양한 수치해석적 모델을 제시하고 그 예민도를 분석함으로써, 교량 구조물 평가를 위한 실용적인 모델링 기법을 도출하여 안정적인 예비 해석 결과를 제공하는데 그 목적이 있다. 프리스트레스트 콘크리트 구조물의 긴장재를 환산단면으로 치환한 모델을 기반으로 긴장재의 탄성적 특성을 반영한 모델과 수정된 탄성계수를 적용한 모델의 고유진동수가 실물 모형체의 그것과 가장 유사한 결과를 얻을 수 있었다. The integrity assessment of the bridge behavior is generalized by field data of a static load-deformation curve and dynamic properties such as impact factors and natural frequencies. Evaluating it with numerical analysis is a reasonable method. The results of the mockup test and the numerical analysis are corresponded with each other since the behavior of service load proceeds in elastic region. In case of the dynamic behavior of structure, especially for the analysis of vibration, the result of the mockup test differs from the result of numerical analysis a little due to the geometric shape and non-homogeneous materials. In order to converge on these tolerances, this study suggested several numerical models, analyzed the sensitivity and finally offered a practical modeling method for the estimation of bridge on the basis of the result of mockup test. Based on the model substituted concrete section for strands section, the natural frequency of the model composed with axial stiffness of strands or the model applied the modified modulus of elasticity was closest with the result of the mockup test.

Angiotensin II 와 Angiotensin Converting Enztme inhibitor 의 투여가 Procollagen a1 ( 5 ) 유전자 발현에 미치는 효과

김형규,조상경,김상욱,차대룡,조원용,임천규 대한신장학회 1998 춘계학술대회 초록집 Vol.1998 No.-

실험적 급성 허혈성 신부전에서 칼슘 길항제의 투여가 신기능과 뇨 Prostaglandin E2 의 배설에 미치는 영향

김형규,조원용,이규백,노정우,구자룡,권현민,변현주 대한내과학회 1991 대한내과학회지 Vol.40 No.5

It has been proposed that calcium entry from the external medium increases intracellular free calcium to toxic levels during ischemic acute renal failure (ARF) thereby converting cellular injury from a potentially reversible to an irreversible state. Because verapamil impedes calcium entrance into cells via voltage-dependent slow calcium channels, it has been suggested that this agent may block calcium entry into the kidney cells. This study was designed to determine whether systemic verapamil pretreatment protects renal function in experimental ischemic ARF in cats and whether verapamil influences prostaglandin, a compensatory system for an acute insult of kidney. For these purpose, creatinine clearance and urinary PGE2 were measured in 18 cats before and after ischemia. The experimental animals were divided into 3 groups. Group I (n=6) was ischemic ARF model by renal artery clamping for 60 minutes. Group II (n=5) was ischemic ARF with systemic verapamil pretreatment (5 μg/kg/min), and Group III (n=7) was the same as Group II with nonsteroidal antiinflammatory drug pretreatment (20 μg/kg/min). The results were as follows: 1) In Group I, creatinine clearance was 10.79±7.19 before clamping and decreased to 2.09±1.70ml/min/ kg, in Group II, 3.41±1.56 to 0.12±0.05ml/min/kg; and in Group III, 6.30±5.50 to 0.80±0.70ml/min/kg. 2) Creatinine clearance decreased significantly in Group II (96±2%) compared with Group I (61±30%). 3) Urine PGE2 in the preischemic period of Group I was 346±175, Group II; 159±102, Group III; 137±91 ng/ ml increased to Group I 355±114, Group II; 471±346, Group III; 355±114 ng/ml in postischemic period. Urine PGE2 excretion was relatively low in Group II and Group III, compared with Group I but not significant statistically. From these findings, it was suggested that systemic verapamil pretreatment exerts no protective effect to ischemic ARF and that it may compromise the compensatory mechanism of the prostaglandin system in ischemic ARF.

지식 정보화 사회와 인간자본

김형규 한국미래연구학회 1996 미래의한국과세계 Vol.3 No.1

실험적 급성 허혈성(虛血性) 신부전(腎不全)에서 Ca++-ATPase 의 발현양상과 칼슘길항제의 효과

김형규,조원용,최태승,변현주,신종인,이규백 대한내과학회 1991 대한내과학회지 Vol.41 No.1

Calcium has been implicated as a primary pathogenetic mediator of cellular injury under conditions of oxygen and substrate deprivation in the kidney such as ischemic acute renal failure (ARF). However, the role of Ca^(++)-ATPase in ischemic ARF, one of the important intracellular calcium regulation machineries participating in calcium ion translocation is unclear. The authors evaluated the changes of Ca+-ATPase before and after renal ischemia. The experimental animals, cats, were divided into 3 groups. Group I (n=6) was ischemic ARF model by renal artery clamp for 60 minutes, Group II (n=5) was ischemic ARF with a verapamil pretreatment (5 ㎍/kg/ min), systemically, and Group III (n = 7) was the same as Group II but with nonsteroidal antiinflammatory drug pretreatment. The results were as followings: 1) In Group I, creatinine clearance was 10.79±7.19 ml/min/kg before clamp and decreased to 2.09±1.70 ml/min/kg, and Group II, 3.41±1.56 to 0.12±0.05 ml/min/kg, and in Group III, 6.8±5.6 to 0.8±0.7ml/min/kg, respectively. 2) Creatinine clearance decreased significantly in Group II, 96±2% compared with Group I, 61±30%. A reduction of creatinine clearance in Group III was 84±11%, not different significantly from the other groups. 3) A Ca^(++)-ATPase of renal tubular cell in the preischemic period was almost negative. The luminal and posterobasal surface of the proxima1 tubule showed slightly increased Ca^(++)-ATPase activities in the postischemic period but the difference of location and activity of Ca^(++)-ATPase among each group was not significant. These results suggested that Ca^(++)-ATPase was activated after ischemia to compensate for ischemic insults resulting in increased intracellular calcium. There were no benefits to protecing renal function from ischemia and therefore no effects on the location and activity of Ca^(++)-ATPase by systemic pretreatment of verapamil for ischemic ARF.

민주화와 통일을 위한 경제개혁과 경제윤리의 재정립

김형규 한국민주시민교육학회 1998 민주시민교육논총 Vol.3 No.1

CMIP5 기후 모형에서 나타나는 북극 겨울철 대기 변동성과 UTLS 한랭 편차의 상관관계

김형규,김주완 한국기상학회 2018 한국기상학회 학술대회 논문집 Vol.2018 No.10

난연제와 실리콘 화합물로 구성된 콘크리트 구조용 내화보드의 열 특성 비교 연구

김형규,김진광,장판기,김병철,김찬우,장일영 한국방재학회 2016 한국방재학회논문집 Vol.16 No.2

콘크리트 구조물에 화재 발생할 시 구조물 내부의 온도가 최고 1400oC까지 이르러 콘크리트의 특성상 폭렬현상이 발생할 수 있으며, 주철근의 온도가 높아져 구조적 안정성 및 내구성 저하 등의 치명적인 피해가 발생할 수 있다. 본 연구에서는 실리콘 화합물을 베이스로 하여 난연제를 첨가한 내화보드를 이용하여 화재 발생 시 구조물의 안정성 및 내구성, 내화성능 확보의 가능성을 확인하고자 하였다. 이를 위해 실리콘 화합물에 ATH, MDH, MC의 난연제를 25~40 wt%까지의 중량비 변화를 주어 제작한 시험편으로 열 특성 분석및 내화성능 분석을 수행하였다. 그 결과 내화보드로써 콘크리트 구조물에 적용 시 구조물의 안정성, 내구성, 내화성능의 확보가 가능함을 확인 할 수 있었다. The internal temperature of the structure during a fire in the concrete structure reaches up to 1400?. The characteristic of concrete is likely to cause explosion phenomenon, the temperature of main reinforcement can cause serious damage such as increased structural stability and durability decrease. In this study, the stability and durability of the structure in the event of a fire using a fire-resistant board, the addition of a flame retardant to a silicone compound as a base, was to determine the possibility of fire resistance obtained. To this end, the silicone compound ATH, MDH, MC was analyzed thermal characteristics and flame retardant to the analysis of the sample by changing imparted to weight of the 25~ 40%. As a result, when a fire-resistant board applied to a concrete structure, it can be secured its stablity, endurance, and fire-resistance.