Gamma 분포모델에 의한 하천유량의 Simulation에 관한 연구

이중석,이순택 한국수자원학회 1980 물과 미래(한국수자원학회지) Vol.13 No.4

본 연구는 Gamma 분포의 이론적 검토와 이의 수공학에의 적용, 즉 Gamma 분포의 적합성 및 Gamma 모델에 의한 하천유량의 Simulation에 대한 연구와 검토를 행하는데 그 목적을 두고 있다. 분석에 있어서 우리나라 주요하천(낙동강, 한강 및 금강)의 월유량자료를 사용하였으며 분석을 간단하게 하기 위하여 자료를 Modular coefficient로 변환시켰다. 먼저 이변수 Gamma 분포형에 대한 월류량에의 적합성을 검정하였으며 이로부터 Gamma 분포형과 Monto Carlo 기법을 기초로 한 Gamma 모델에 의하여 월류량의 Simulation을 행하였다. 그 결과 기록치와 매우 근접한 Simulation 자료를 얻을 수 있었다. The prupose of this study are the theoretical examination of Gamma distribution function and its application to hydraulic engineering, that is studying the simulation of monthly streamflow by the Gamma distribtution function model(Gamma Model) based on Monte Carlo technique. In the analysis, monthly streamflow data in the Nak Dong River, the Han River, and the Keum River were used and the data were changed to modular coefficient in order to make the analysis convenient. At first, the fitness of monthly streamflow to 2-Parameter Gamma distribution was tested by Chi-square and Kolmogrov-Smironov test, by which it was found the monthly streamflow were fit well to this Gamma distribution function. Then, the Gamma Model based on the Gamma distribution and Monte Carlo Method was used in the simulation of monthly streamflow, and simulateddata showed that all their stastical characteristics were preserved well in the simulation. Consequently, it can be concluded that the Gamma Model is suitable for the simulation of monthly streamflow series directly by using the Mote Carlo technique.

젊은이여, LS엠트론을 꿈꿔라

이중석 한국농업기계학회 2015 상주농업기계박람회 심포지엄 Vol.2015 No.-

同一化와 人性과의 關係에 對한 硏究

李重昔 淸州敎育大學校 1971 論文集 Vol.7 No.-

Identification is thought of as an interactional process between children and adults whereby a person's personality is modified to incorporate and conform with expectations, ideals, and imperatives held by members of the group to which he belongs. But today's situation is not the same as it used to be. Juveniles run utterly counter to adults in terms of values, ideals, thought, and perspectives. They think the present adults contribute too little to be reckoned with in shaping children for the future. The chronic discontinuity and contempt between older and younger generations has posed a grave threat to juvenile education and for quite some time has been the subject of controversy on whether to let young people identify with the older generation or not. Still worse, what adult phenomena and psychology do to the minds of children is considered to he planting meager personal impressions upon young men and converting them into the target of villification and discount. In a nutshell, the uneducational effect wrought by a range of disparities between generations is definitely more negative than positive. I) The Purpose This study attempted to seek the effectiveness of identification, especially negative-symbolic identification as today's subject of controversy. The specific objectives are: 1. To make clear how identification as a kind of socialization exerts formative influences upon personality development as an incentive factor. 2. To make clear the degree and correlation between identification (negative-symbolic identification) and personality traits-general activity, dominance, emotional stability, impulsiveness, masculinity, objectivity, reflectiveness, and sociability as classified in Dr. Chong Bum Mo's personality test. 3. To make clear how the negative-symbolic identification, overriding the positive realistic identification, exerts a detrimental influence upon the self-development of youth. 4. To make clear which factors determine the occurrence of identification, its pattern, change, degree, and presence or absence. 5. To understand the relation of a model's substitute selection and human development, and that of the model's childrearing styles and self-development. 1. A review was made of literature relevant to the study concerned. 2. Dr, Chong's personality test was administered to 200 students of ChongjuTeachers College as a measure of their Personality traits, These traits included general activity vs, nonactivity, sociability vs, unsociability, masculinity vs. feminity, emotional stability vs. unstability, dominance vs. submissiveness, impulsiveness vs, self-control, objectivity vs. subjectivity, and reflectiveness vs, frivolousness 3. These results were classified by percentile scores into high, middle, and low groups-100%-75%, 75%-25%, and 25%-0% respectively, 4. An identification test made by the researcher was administered in order to find out the student's general state of identification. This accompanied the personality test of Dr, Chong. The identification is composed of 35 items in all for examining the students' identification patterns and divers1ons and their influences, model's substitute patterns, model's childrearing styles, identification and achievement motives, identification and social status, plus identification and self-concept formation. 5. The above ratings of the two tests were correlated and compared with the use of x² and p (level of significance). Ⅳ) Results The following results were indicated: A) It was disclosed that the negative-symbolic identification, of the various identifications occupying the minds of youth, has a higher significant correlation with inter-personality traits listed above except a few traits beneath p>0.01: The correlation between the negative-symbolic identification and interpersonality traits was confirmed at a 1% level of significance, as shown below the order of x²scores: Level of significance(p) & x² of negative-positive identification Order Personality Traits x² Level of significance 1 Emotional Stability-Unstability 13.44 P<0.01 2 Sociability-Unsociability 13.03 P<0.01 3 Masculinity-Feminity 12.05 P<0.0l 4 Dominance-Submissiveness 11.97 P<0.01 5 Reflectiveness- Frivolousness 10.04 P<0.0l 6 Impulsiveness-Self control 8.75 0.02<P>0.01 7 Objectivity-Subjectivity 6.78 0.05<P>0.02 8 General activity-Nonactivity 4.12 0.20<P>0.10 Level of significance (p) & x² of symbolic-realistic identification Order Personality Traits x² Level of Significance 1 General activity-nontativity 21.82 P<0.01 2 Dominace-Submissiveness 20.35 P<0.01 3 Impulsiveness-Self control 16.11 P<0.01 4 Sociability-Unsociability 11.35 P<0.01 5 Emotional Stability-Unstability 9.86 P<0.01 6 Objectivity-Subjectivity 8.06 0.02<P>0.01 7 Masculinity-Feminity 7.42 0.05<P>0.02 8 Reflectiveness-Frivolousness 0.77 0.70<P>0.50 B) It was disclosed that the negative-positive identification and symbolic-realistic identification produced seriously wide disparities, nearing the widely separated upper and lower groups. The disparities were confirmed at a 26-3 difference between the upper and lower group's negative-positive identification and 22-10 in symbolic realistic identification. This is illustrated below: Mean & difference of negative-positive identification Class Negative M Positive M D Upper 54 51 3 Middle 52 37 15 Lower 58 32 26 Mean & difference of symbolic-realistic identification Class Symbolic M Realistic M D Upper 51 41 10 Middle 53 45 8 Lower 57 35 22 C) It was disclosed that the negative-symbolic identification exerts more definitely serious influences upon self-development than any other identification, overriding positive-realistic identification, This indicates the converse nature of negative-symbolic identification. The negative-symbolic identification patterns were confirmed at 85.4%, and 87.2% of response percentages, outstripping a diversity of other identifications as shown below: Response percentage of identification patterns Identification Pattern Response Percentage Secondary Reinforcemnt Identification 10.3 Dependency Identification 18.5 Status Power Envy Identification 27.3 Vicarious Reinforcement Identification 28.1 Symbolic Identification 85.4 Negative Identification 87.2 Similarity Identification 52.2

毘盧遮那佛의 名稱과 由來考

李重碩 한국불교학회 2001 韓國佛敎學 Vol.30 No.-

Essay on the names and origin of Vairocana

High-performance Stable N-type Indenofluorenedione Field-Effect Transistors

이중석,박영일,김범준,김범진,박종욱,조정호 한국고분자학회 2011 한국고분자학회 학술대회 연구논문 초록집 Vol.2011 No.2

Clark L.Hull의 演譯的 行動接近과 習慣族位階 形成에 關한 硏究

李重昔 청주교육대학교 1974 論文集 Vol.10 No.-

Clark L. Hull occupies a distinguished position in the contemporary Psychological theory. Noone else, perhaps with the exception of kurt Lewin, was so keenly devoted to the problems of scientiffic methodology. Few psychologists have had such a mastery of mathematics and formal logic as Hull had. Hull applied the language of mathematics to psychological theory in a manner used by no other psychologists. Whatever exists, Hull believed, exists in a certain quantity; whatever relationships have to be discovered by science, they have to be presented by mathematical equations. Hull discerned four research methods by science, they have to be presented by mathematical equation. Hull discerned four research methods, which deserves our educators' utomost concerns, leading to the discovery of scientific truth. ① The first method is simple, unplanned observation. ② The second is systematic, planned observation. ③ The third is the experimental testing of some specific and mutually nonrelated hypotheses. ④ The hypotheses come from Clark L. Hull occupies a distinguished position in the contemporary Psychological theory. Noone else, perhaps with the exception of kurt Lewin, was so keenly devoted to the problems of scientific methodology. Few psychologists have had such a mastery of mathematics and formal logic as Hull had. Hull applied the language of mathematics to psychological theory in a manner used by no other psychologists. Whatever exists, Hull believed, exists in a certain quantity; whatever relationships have to be discovered by science, they have to be presented by mathematical equations. Hull discerned four research methods by science, they have to be presented by mathematical equation. Hull discerned four research methods, which deserves our educators' utmost concerns, leading to the discovery of scientific truth. ① The first method is simple, unplanned observation. ② The second is systematic, planned observation. ③ The third is the experimental testing of some specific and mutually nonrelated hypotheses. ④ The hypotheses come from intuition or observation and are scrutinized by a carefully planned experimentation. Hull believed that the most fruitful one was the fourth method. Detailed for our reference, the hypothetice-deductive method is a three-step method of research that applies a rigorous deduction from a priori set principles. A system of definitions has to be introduced. Then a series of highly conceptualized postulates (tentatively stated laws) is proposed. From these definitions and postulates a series of detailed theorems is rigorously deduced. The totality of definitions, postulates, and theorems form a systematic and integrated theory. The advantage offered by a deductive method was apparent to Hull. As modern science gains its ground throughout all of spheres the life, mathematical and formal logical statements have unlimited generality. If psychology, in accordance with the behavioristic view, intends to become an objective science patterned after other natural science, the deductive-mathematical method seems to be the most appropriate one. Hull, kept his promise of transcendent truth(perceptible evidence). He was influenced by the moderate wing of logical positivism (David Hume's view on induction and causation and importance of logical analysis0 and by conventionalism (French mathematician and philosopher H. Poincar'e suggested that any system of postulates can be proposed, but it should be modified according to the results of empirical testing). During the period 1929-1953, research in the field of learning was heavily dominated by a long series of theoretical and experimental studies that in their wholeness involve the best example of the afore mentioned hypothetico-deductive system-making in psychology to appear during the first half of the century. Over a quater of a century, Hull developed several theories which varied in scope and addressed themselves to several different forms of learning. All his life Hull was modifying his learning theory in an effort to keep it in accord with the experimental evidence. He was stating hypothetical postulates and putting them to an experimental procedures, which were to prove or to disprove or to adjust his hypotheses in accordance with the observational evidence. As soon as the quantitative data obtained in experimentation became available, he transformed his postulated into quantitative statements. These statements quantified his theory construction. Of course, on this point Hull is open to criticism (not giving the particulars of such contention). His system is a behaviorism, and as such falls into the family of theories which also includes those of Watson, Guthrie. and Skinner. He formulated an objective quantitative theory of Neo-Behaviorism which is designated ds Deductive Behaviorism. Hull's theory is an S-R theory and consists of a chain of intervening variables bridging a logical gap from stimulus to response. To sum up, it will be convenient to consider the theory as consisting of five major clusters of variables, in order: habit formation, generalization and stimulus compounding, motivation(later Hull motivation theory will be argued), inhibition., and response evocation. Like Watson, Hull stressed conditioning as the basic learning process. His theoretical model was a Newtonian mechanism. He developed an intricate system of definitions, postulates, and theorems to bridge the gap from simple conditioning to more complex forms of learning. For example, in presenting his theory of learning, Hull stated, "Whenever a reaction(R) takes place in temporal contiguity with an afferent receptor impulse(S)resulting from the impact upon a receptor of a stimulus energy(S), and this conjunctions followed closely by the diminution in a need (and the associated diminution in the drive, D, and in the drive receptor discharge, ??), there will result and increment △(S→R), in the tendency for that stimulus on subsequent occasions to evoke that reaction within Hullian reinforcement, the stimulus and the response are not simultaneous; the stimulus precedes the response. Furthermore, learning does not take place with a single trial; it is stamped in through a process of repeated need or drive stimulus reduction. Thus, he thought of learning in terms of receptor-effector connections and of reinforcement in terms of need or drive stimulus reduction. He thought that learning occurs through biological adaptation of and organism to its environment in a way to promote survival. According to Hull, behavior involves an interaction between stimuli in the environment and the response which the organism makes to these stimuli through the medium of the nervous system in accordance with molar or macrocosmic or coarse grained behavioristic approach. (The molar approach deals with the organism as a whole, the molecular with the detailed, fine and exact elements of action of the nervous system. Molar is opposed to molecular; the latter would presumably deal with the action of the ultimate nerve cell, the protoplasmic molecules making up the neuron or the atoms constituting the molecule, or even the electrons, protons, neutrons, etc., constituting the atom). This interaction, which constitutes learning, involves fundamentally the biological adaptation of the organism to its environment. Influenced by Darwin's theory of survival, Hull maintained that it was necessary to think of the organism in a setting of organic evolution in which certain optimal conditions were essential for survival. Biological adaptation facilitiates survival. When, however, the conditions necessary for survival are less than optimal, a state of need arises within the individual. The function of behavior is to satisfy needs. A state of need operates upon an event or state designated as drive which is a state of lack-food privation, water privation, therm deviation from the optimum, tissue injury, the action of sex hormones in the organism that arouses activity and demands satisfaction or reducing, which serves the promotion of optimal conditions for survival. Under the pressure of needs and drives the organism undertakes adaptive actions. Thus drive is the motivating factor which stimulates to activity and impell the individual to make a response. Since drives bring out responses, they constitute the dynamics of behavior and thus are the bases for all behavior. The resulting action is goal-directed, the goal being the reduction of the drive, and the pattern of actions responses which lead to reduction of need become predominant or reinforced apparently, this is exactly what Thorndike had in mind with "stamping in" in the law effect. (Hull adopted Thorndike's law of effect, whereas Watson rejected it). This reduction of drive must occur in order that learning takes place. The central principle in Hull's theory is reinforcement, which refers to "any set of conditions which when appropriately employed, favors learning". It has the effect of reducing need; that is, it involves the strengthening of the process of interaction between stimuli and responses. Reinforcement is the key principle in learning since " learning takes place only when the action that is performed is reinforce or rewarded." whether or not a response will be repeated depends upon whether or not it has been rewarded. A stimulus which leads to a need-reducing action may become associated with another, originally neutral, stimulus. This is conditioning as described by Pavlov. Put in another words, Hull believes that no conditioning will take place unless there is need reduction. Reinforcement is need reducing, and conditioning takes place only when there is reinforcement. In Hull's frame of reference, "the conditioned reaction is a special case of law of effect." In Hull's theory a distinction has been made between primary and secondary reinforcement. Primary reinforcement refers to the reduction of the basic needs of the organism. Secondary reinforcement refers to stimuli originally neutral but which closely and consistently associated with the reduction of a primary need or satisfaction of a drive tends to acquire reinforcing properties in its own right. Hull also considered that reinforcement constitutes the primary condition for habit formation, acquisition, and development which is the central factor in learning. Through such higher-order conditioning many things and actions come to have value and can serve as reinforcers. Higher-order conditioning is conditioning based up on previous conditioning (originally neutral stimuli become closely associated with primary reinforcing stimuli and thereby become effective in reducing need and neutral stimuli acquire the power of acting as reinforcing agents.) Hull employed the term habit strength to refer to "how firmly a particular stimulus-response relationship has been established." Habit is the result of the occurrence of stimulus, response, and reinforcement in close temporal conjunction. Reinforcement brings about an increase in habit strength, and learning occurs when habit grows. Habit strength is determined by the frequency with which a certain response has been rewarded or followed by a reward. In summary, one feels that probably Hull's contribution to psychological theory was much greater than Hull's own theory could be. Psychologists may accept or reject this or that part of Hull's theory or even reject it entirely. Yet there is a deep feeling of respect and admiration for the house that Hull built. His theory is entrenched with numerous and ingenious experimeds conducted in most rigorous manner by himself and his brilliant friends, followers, and disciples, among them J.S. Brown, J. Dollard, C. I. Hovland, G. E. Kimble, N. E. Miller, H. O. Mowrer, K. W. spence, H. G. Yamaguchi (to mention only a few), and some of them assumed themselves a leading position in the contemporary theory of learning. Hull's way of reasoning is impeccable, his explanations are lucid, and his constant double-check of theory against empirical evidence invites emuluation, some questions still remain open, among them the question of the generality of his statements and of the general validity of his quantifcations and the most general problem of whether psychology should be studied in the manner in which Hull studied it.

敎育行政의 寄生倂發症勢 및 學校風土의 組織健康에 대한 分析

李重昔 淸州敎育大學校 1977 論文集 Vol.13 No.1

It is probably an exaggeration to say that the recent developments in educational administration constitute a revolution, but it is no exaggeration to say that the last or two decades have witnessed profound changes which seem to forecast more extensive developments in the near future. Much of the "new" in educational administration involves new knowledge which leads to new insights into administrative behavior with consequent hope for increasing the professional capability of school administrators to meet the challenges that lie ahead in our education. Some refer to the "revolution" in educational administration while others speak of a "new ferment" in it and still others discuss the status qo educational administration. The refore, it is almost impossible today to maintain a school in status quo forces for change in our society are so powerful and so pervasive that remaining static is nearly impossible. The chief school administrators, who constitutes the kernel parts of a school with teachers, and pupils, are in a unique position to block or facilitate the initiation of change. In another word, "a change in the school labeled as an innovation is in their grips. Kurt Lewin and his associates have contributed another significant theory concerning interpersonal behavior in organizations which is generally the approach that is widely associated with "group dynamics." Lewin posited that important determinants of organizational behaviors are (1) the characteristics of the individual, (2) the characteristics of the group, and (3) the cultural norms. Together, these determinants form a field of forces which change the climate and effectiveness of the organization to be discussed here. The development of the social systems view of organizational behavior-beginning with Mayo and Roethlisberger's Western Electric researches in the 1930's and continuing through the work of Getzels in the late 1950's-has underscored the intimate interrelationship between the individual person and the organization and has pointed up the importance of role in the organization. And Lewin's stress on the importance of the individual's participation in decisions which affect him has aided the development of a concept with which names such as Argyri's immoturity-maturity theory McGregor's Theory, Y. X and theory, Maslow's hierarchy of needs theory, and Herzberg's motivation-hygiene theory. are associated. Essentially, this concept is that organizational behavior is strongly affected by the administrator's influence and the need for the individual to control himself. Thus, the trend is not only away from the arbitrary, coercive, autocratic exercise of power, but toward more effective, personal involvement-as reflected in organizational behavior. There is obviously a quid pro quo relationship between the role-player and the organization, the maintenance of which can be thought of as a state of equilibrium between the needs of the organization (nomothetic) and those of the individual. As long as this state of equilibrium exists, the relationship will presumably be satisfactory, enduring, and relatively productive. Lonsdale explains three useful terms-(1) Homoeostasis, (2) Feedback, and (3) Entropy as an indicator of the state of equilibrium existing between the organization and its external environment. Warren Bennis also provides a succinct listing of the "human problems confronting contemporary organization-(1) Integration, (2) Social influence, (3) Collaboration, (4) Adaptation, and (5) revitalization. Chris Argyris uses the concept of organizational effectiveness similarly to Miles and Benni's use of organizational health. Argyris contends that organization effectiveness hinges on an organizations's ability to accomplish three essentials-(1) Achieve its goals. (2) Maintain itself internally, and (3) Adapt to its environment. Miles uses 10 dimensions to describe organization health as followings-(1) Goal focus. (2) Communication adequacy, (3) Optimal power equalization. (4) Resources utilization. (5) cohesiveness, (6) Morale, (7) Autonomy, (8) Innovativeness, (9) Adaptation, and (10) problem-solving adequacy. This researcher tried to overhaul the organizational climate and health of korean school by the use of the above-mentioned dimensions of organizational heath listed by Miles. Accordingly, The most important possible concern focus is that we should deal with matters such as leadership, organizational climate, decision making, change in an organizational setting confronting our school. and etc. In the future school organization will undoubtedly be needed, staffed, and organized around a "climate of beliefs with regard to effective human behavior in organizations which will make the more responsive both to internal and external pressures. This climate of beliefs, or system of values, will include the following, as described by Bennis: 1. Full and free communication, regardless of rank and power. 2. Reliance on consensus, rather than on the more customary forms of coercion or compromise, to resolve conflict. 3. The idea that influence is based o technical competence and knowledge, rather than on the vagaries of personal whim or prerogatives of power. 4. An atmosphere that permits and even encourages emotional expression, as well as task-oriented acts. 5. A basically human bias, one which accepts the inevitability of conflict between the organization and the individual, but which is at the same time willing to consider such conflicts on rational grounds. Taking these viewpoints into account let us take a look at our beliefs to which the adherents of the "new" in educational administration would tend to subcribe: 1) Administration is comprised of specialized knowledge skills, and understandings which are different from the activities being administered. 2) The practice of administration, in the new sense, is based on a realistic view of organizations as they actually exist. 3) the scientific foundations of the "new administration" are in the behavioral science. 4) Change is ineluctable in educational administration, and innovation is urgently needed.

성견 치주 골결손부에서의 수종의 차단막에 의한 치주조직 재생 효과;조직계측학적 메타 분석

이중석,임현창,채경준,정의원,김창성,이용근,조규성,채중규,김종관,최성호,Lee, Jung-Seok,Lim, Hyun-Chang,Chae, Gyung-Joon,Jung, Ui-Won,Kim, Chang-Sung,Lee, Yong-Keun,Cho, Kyoo-Sung,Chai, Jung-Kiu,Kim, Chong-Kwan,Choi, Seong-Ho 대한치주과학회 2007 Journal of Periodontal & Implant Science Vol.37 No.3

Various periodontal barrier membranes used in many clinical and experimental fields, and many recent studies of membranes have reported good results. To improve clinical results, selection of barrier membranes is an important factor. So, we need not only to evaluate various barrier mem-branes, but also to understand the property of barrier membranes appropriate to defect characteristics. For this purpose, this study reviewed available literature, evaluated comparable experimental models, and compared various barrier membranes. From above mentioned methods, the following conclusions are deduced. 1. In i-wall periodontal defect models, new bone formation showed a consistent result, almost 30% of the defect size. New cementum formations measured mostly 40% of the defect size, but showed more variations than new bone formations. This seems to be resulted form difference in experimental methods, so standardization in experimental methods is needed for future studies. 2. Application PLGA barrier membrane to periodontal defect demonstrated improved healing in new bone and new cementum. 3. There was a minimal periodontal regeneration with calcium sulfate barrier membrane only. But, there was better healing pattern in combination of calcium sulfate membrane with bone graft material, such as DFDBA, 4. There was no significant difference between the experimental group that used chitosan mem-brane only and the control group. But, in combination with bone graft material for space maintanence, periodontal regeneration was improved. Overall, Space maintenance is a critical factor for Guided tissue regeneration using barrier membranes. Also, a barrier membrane itself that has difficulty in maintaining space, achieved better result when used with graft material.

A new unified modeling of acoustically-coupled multilayers by (us,uW) displacement formulation based poroelastic transfer matrix

이중석 대한기계학회 2015 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.29 No.2

This paper is devoted to propose a new unified modeling technique to efficiently present acoustically-coupled multilayers consisting ofair, elastic and poroelastic layers. The present work is motivated by a need for more efficient modeling in multilayer design optimization,such as topology optimization. A poroelastic transfer matrix derived from Biot’s theory is employed for a unified modeling of multilayers. The existing unified modeling approaches were derived by the field variables of the solid- and fluid-phase displacements. In this work,the solid-phase displacement (us) and a compound form (uW) of the solid- and fluid-phase displacements are used as the generalized coordinatesto develop a new unified modeling technique. When the alternative formulation is used, the physics of wave propagation inmultilayers can be better explained. Moreover, it also allows the macroscopic material coefficients to be directly controlled for the designoptimization applications compared with the existing unified modeling techniques.

제21대 국회의 ‘일하는 국회법’ 주요내용

이중석 한국의회발전연구회 2020 의정연구 Vol.26 No.2