Small - Scale Model 을 이용한 보강토 옹벽(擁壁)의 거동 해석

최영근,최기봉,신방웅 충북대학교 건설기술연구소 1990 建設技術論文集 Vol.9 No.1

This thesis was carried out experimental research a mechanical characteristics of the reinforced earth retaining wall using the small-scale model design and construction method through an experimental research about the reinforced earth retaining wall in the laboratory. It was investigated about problems occuring the application of the existing design theory in the design of the reinforced earth retaining wall. The Reinforcing strips were made of the aluminium foil strip instead of the geosynthetics and placed at 10 and 15㎝ in the horizental and vertical directions, respectively, and tensile strain was measured by the strain gages of the each strip, and the lateral movement of the skin element was observed and traced the failure phenomena by the dial gage. This thesis was compared with the observed data to the existing research result of the reinforced earth retaining wall. In result an important factor affecting the stability of the reinforced earth retaining wall was the friction force between soil and soil, soil and reinforcing strips, the strength of the strips. The observed maximum tensile stress of the strip by the experiments did not coincide with the theoretical Rankine's failure surface wupposing the straight line and we know that the more internal friction of a sand backfill is large, stability of retaining wall is larger.

비전과 현실 사이에서 기독교대학 정체성 추구에 관한 연구 - 미국 데이비슨대학(Davidson College)의사례를 중심으로 -

최영근 한국대학선교학회 2018 대학과 선교 Vol.38 No.-

이 논문은 미국 장로교가 설립한 데이비슨대학의 사례 연구를 통해 미국 고등교육의 발전과정 가운데 설립초기의 이상과 변화된 현실 사이에서 기독 교 정체성을 추구하는 기독교대학의 변화과정과 대응방식을 연구하였다. 데이비슨대학은 대외적 위기와 도전에 응답하여 초창기 교단직영의 보수적 장로교대학에서 벗어나 일반화, 전문화된 대학환경 속에서 학문의 수월성을 추구하며 명문대학으로 발전하면서도, 장로교의 뿌리와 보편적(에큐메니 칼) 기독교의 정체성을 유지하며 신앙과 학문의 조화를 추구하고 있다는 점에서 주목할 만하다. 이 논문은 데이비슨대학이 이상과 현실 사이에서 취한 중간적 입장이 학문적 수월성과 기독교 정체성을 동시에 추구하려는 기독교대학의 현실적 대안임을 인정하면서도, 언제든지 세속화로 움직일 수 있는 유동성의 위험을 지적하였다. 결론적으로 이 논문은 기독교대학이 현 실의 도전 앞에서 기독교적 정체성을 지켜 나가기 위해서, 무엇보다 이상을 현실을 위한 비전으로 제시하며 대학구성원들의 공감과 협력을 이끌어내고, 차별화된 연구와 교육과 봉사로 고등교육에 기여하면서, 사회적 요구와 기 독교공동체의 필요에 응답하는 사명을 수행하는 부단한 노력이 필요하다고 주장하였고, 이를 위해 이사회, 총장, 교목, 교수들의 역할의 중요성을 강조 하였다. This paper investigated a case of Davidson College established by Presbyterian Church in the U.S.A. to delve into how a Christian college has changed in and sought for the Christian identity between the founding ideals and the surrounding realities. Davidson College in a specialized, pro- fessionalized learning environment confronted crises and challenges from outside and developed into a prestigious college while pursuing academic excellence. It is noteworthy that Davidson has preserved the Presbyterian ties and ecumenical Christian identity seeking harmony between faith and reason whereas avoiding an earlier narrow denominational identity as a theologically conservative Presbyterian. This paper argued that the Davidson’s middle way between a religiously committed and a generally scholarly college would be one of the most realistic countermeasures for a Christian college seeking the Christian identity and academic excellence at the same time even thought it would be vulnerable to a shift towards the more secularized positions. Consequently, a successful Christian university should get the constituency to feel sympathy and cooperate with the Christian identity as the vision for the realities to make the distinctive con- tribution to higher education and meet the social needs and guide the Christian community with the distinguished research, education, and service. Leadership of the university from the board of trustees, president, chaplain, and professor should play a decisive role in making the difference.

논리언어의 병렬처리에 관한 연구

최영근 光云大學校 1986 論文集 Vol.15 No.-

A model for parallel execution of logic program is presented. It is based on the idea of representing logic programs as AND/OR trees. Especially in AND process, subgoal scheduling is crucial. Subgoal Scheduling must reorder the subgoals, so that the number of bound variables may be increased and cluster, the mutually disjoint set of subgoals, can be executed parallel in AND Process.

柔道選手의 筋力과 反應時間과의 相關關係에 關한 硏究(Ⅰ) : 中ㆍ高, 大學選手를 中心으로

崔永根,李成國 경희대학교 체육대학 한국체육과학연구소 1980 體育學論文集 Vol.8 No.-

Judo a personal fisticuff game, and a composite physical functions are required for the game. Making resedrch of the physical functions of middle school, high school, and collegiate players through measuring muscular strength and its reaction time reharded as important to the judo phayers, we came to the following conclusion; 1. The muscular strength of the fiuger, the back, and the abdomen of the collegiate players were learned to he superior to those of middle and high school ones, but grasping power, the muscular strength of the arms and the limb of high school players were learned to he superior to the middle school and collegiate ones. 2. In comparison of the hand's reaction time upon the light and the sound, it was learned for the collegiate players to be the best in the reaction time upon the light of the hand, and for high school phayers to be the best in its reaction time upon the sound. And high school players were learned to be faster in the reaction time upon the light and the sound of both the hand and the limb. 3. In the correlation between musoular strength and the reaction time, it was learned for the reaction time upon the light of middle school players to be sure to be in correlation to the physical strength of the fivger (the left and right), the arms (the left and right), and the limb (the left and right) and for the reaction time upon the sound to be in slight correlation to the muscular strength of the fingers (the left and right), and the limb (the right), and the arms (the left and right). If was learned for the reaction time upon the light of high school players not to be in correlation to any one of all the muscular streughth mentioned above, and for their reaction time upon the sound to be in slight correlation to the muscular strength of the finger (the right), the arms (the left and right), and the limbs (the left and right), and grasping power (theright), Meanwhile it was learned for the reaction time upon the light of the collegiate players to be in correlation to the muscular strength of the fingers (the left and right), the limbs (the left and right), and grasping power (the left and right).

Lazy/eager evaluation을 이용한 functional 언어의 효율적 처리에 관한 연구

최영근 光云大學校 1986 論文集 Vol.15 No.-

Functional programming language has no explicit evaluation method. If functional program is evaluated by lazy evaluation, quasi-parallelism can be achieved. But this evaluation method can't exploit parallelism fully on multiprocessor architecture. Thus, in order to exploit implicit parallelism in functional language, lazy evaluation as well as eager evaluation should be used. This paper shows lazy/eager evaluation mechanism is function programs execution and its implementation.

모델검사기를 이용한 병렬프로그램의 자동검증 방법

최영근 光云大學校 1990 論文集 Vol.19 No.-

Temporal logic is classified into LTTL, BTTL, FBTTL, and FTTL. Each type of temporal logic has its own automatic verification method of different time complexity. In this paper, UMC which can verify temporal formula automatically irrespective of types of temporal logic is designed and implemented. Especially, UMC applies automata theory, rather than conventional method, to verification of LTTL's formula in order to improve the efficiency of model checking. Also, in UMC, every formula is partitioned into subformulas, so that the most efficient model checking method for each subformula is applied.

특집: 2020년 기독교문화연구소/인돈학술원 주관 신앙과 학문포럼 발표문

최영근 한남대학교 기독교문화연구소 2021 기독교문화연구 Vol.24 No.-

자발성 대뇌 심부 혈종에 대한 뇌정위적 조기 천자흡인제거술 및 UROKINASE 관류에 의한 치료 결과

최영근,함인석,성주경,황성규,박연묵,김승래 대한신경외과학회 1995 Journal of Korean neurosurgical society Vol.24 No.3

C-T guided stereotactic early burr hole aspirations performed on 106 spontaneous deep intracerebral hematoma patients in the Department of Neurosurgery. Kuungpook University Hospital, between January 1992 and December 1993. For average five days following the operation, continual urokinase(UK) irrigation was done for complete removal of the remaining hematoma. Of the patients, 73 who were operated on within three days of bleeding ictus were chosen for analyses and evaluation by factors believed to affect the final results.. Eighty six percent was found to have hypertension as its cause. The hematoma was removed completely in 13.7% of all the patients on post operation 1st day and 45% within 7 days by urokinase irrigation. The site of hematoma in thalamocapsulo-lenticular area showed a father poor remission rate compared with those in other locations along with a higher mortality rate. By comparison between the time of admission and discharge, the state of consciousness of patients showed much improvement with 440% of the number of alert patients on discharge : motor function also showed significant improvement with 450% good patients number. In case of poor state of consciousness or motor function on admission, the mortality rate was higher. Rebleeding after aspiration was found in 6.8% and in all the cases except one the operation was done within 24 hours of bleeding, which resulted in poor postoperative outcome without improvement. Pneumonia was most common complication during admission followed by hydrocephalus. Mortality rate was 8.2%, most of which result from direct brain damage through bleeding. This surgical method is simple, safe and efficient in treating spontaneous deep intracerebral hematoma with no significant outcome difference when compared with early craniotomy.

한국 프로야구 경기결과에 관한 통계적 연구

최영근,김형문,Choi, Young-Gun,Kim, Hyoung-Moon 한국통계학회 2011 응용통계연구 Vol.24 No.5

There are a variety of methods to model game results and many methods exist for the case of paired comparison data. Among them, the Bradley-Terry model is the most widely used to derive a latent preference scale from paired comparison data. It has been applied in a variety of fields in psychology and related disciplines. We applied this model to the data of Korean Baseball League. It shows that the loglinear Bradley-Terry model of defensive rate and save is optimal in terms of AIC. Also some categorical characteristics, such as east team and west team, existence of golden glove winning players, team(s) with seasonal pitching leader, and team(s) with home advantage, influenced the game result significantly. As a result, the suggested models can be further utilized to predict future game results. 경기의 결과를 모형 화하는 것은 다양한 방법을 통하여 이루어져 왔다. 특히 두 개의 팀만이 경기를 하는 경우에는 더욱 다양한 방법이 제안되었다. 그 중에서 Bradley-Terry 모형은 짝지어진 자료로부터 선호하는 크기의 특성을 얻을 수 있는 가장 넓게 사용되어지고 있는 모형이다. Bradley-Terry 모형은 스포츠 경기결과의 분석과 심리학에 관련된 분야들에서 다양하게 적용되어진다. 본 연구자는 한국 프로야구 자료에 Bradley-Terry 모형을 적용하였다. 그 결과 연속형 공변량의 경우 평균자책점과 세이브를 포함하는 모형이 최적으로 나타났고 관심의 대상이 되는 몇 가지 범주형 분석의 결과 동군과 서군, 골든글러브, 다승왕, 그리고 홈경기의 이점이 승부에 영향을 주는 것으로 나타났다. 하지만 이들의 조합은 단순히 연속형 변수만을 포함한 모형이 분석 결과 더 적절한 것으로 고려되어졌다. 제안된 모형은 경기의 승패를 예측하는 데도 유용하게 사용될 수 있다. 한 예로 한국시리즈에서 우승할 확률들의 순서가 2008년도의 결과와 정확히 일치하였다.

경 후두과 극 측방접근법으로 치료한 추골동맥의 해리성 동맥류

최영근,백민우,공성택,최창락 대한신경외과학회 1996 Journal of Korean neurosurgical society Vol.25 No.1

We expierenced two cases of intradural verteral artery dissecting aneurysms. The presenting symptom was subarachnoid hemorrhage in one case and ischemic symptom in the other. The preoperative angiographic findings typically showed fusiform dilatation and proximal and/or distal narrowing of the affected artery. In one case the vertebral artery was clipped distal to the PICA and in the other case trapping was performed through the extreme lateral transcondylar approaches. This approach permits a control of the aneurysm through the direct view of whole length of the vertebral artery, lower cranial nerves and ventral brain stem. In order to obtain ample view and to save the lower cranial nerves and perforating vessels, jugular tubercle should be sufficiently drilled out. Postoperitive neurorlogical outcomes were favorable except mild hoarseness for some period if trapping case.