자기통제 피드백이 배구 언드핸드 토스의 수행과 학습에 미치는 영향

한남익,박종태,표내숙,박철용 釜山大學校 附設 體育科學硏究所 1998 體育科學硏究所 論文集 Vol.14 No.-

The purpose of this study was to investigate where a feedback(self-controlled) schedule controlled by learner would be a more effective means of delivering feedback than any predetermined feedback schedule. Subjects(n=60) were randomly assigned to one of five conditions : Control condition, 50% relative frequency feedback condition, bandwidth feedback condition, self-controlled performance feedback condition, and yoked control condition. Experiment was designed to determine the optimal feedback condition for performance and learning of underhand toss. In experiments, subjects performed 50 acquisition and two retention trials blocks were analyzed with two experimental conditions to which they had been assigned. Data obtained from all subjects in five acquisition and two retention trials blocks were analyzed with two separate analyses of variance for each of four error scores. Analysis performed on the acquisition trials were a 5×5(condition ×trial block) analysis of variance(ANOVA) with repeated measures on the second factor. The retention trials were analyzed in a 5 ×2(condition ×trial block) analysis of variance with repeated measures on the second factor. Dependent measures were absolute error(AE), and variable error(VE). In conclusion, it should be stressed that the results of this study do support the guidance hypothesis of feedback and these findings showed that self-controlled subjects tend to produce improvements in the learning of underhand toss.

초경공구를 사용한 Ti-6Al-4V 타이타늄 합금의 절삭가공시 공구마멸과 절삭특성에 관한 연구

김남용,홍우표,이동주 한국공작기계학회 2000 한국공작기계학회 추계학술대회논문집 Vol.2000 No.-

The machinability of Ti-6A1-4V titanium alloy and tool wear behavior when machining Ti-6A1-4V titanium alloy was studied to understand the machining characteristics. this material is one of the strong candidate materials present and future aerospace or medical applications. Nowadays their usage has already been broaden to everyday's commercial applications such as golf club heads, finger rings and many decorative items. Anticipating the general use of this material and development of the titanium alloys in domestic facilities, the review and the study of the machining parameters for those alloys are deemed necessary. this study is concentrated to the machining parameters of the Ti-6A1-4V alloy due to their dominant position in the production of titanium alloys.

폴리머 콘크리트를 이용한 전기,통신관련 제품 개발에 관한 연구

김남호,김광호,한욱표 강원대학교 석재복합신소재제품연구센터 1996 석재연 논문집 Vol.1 No.-

본 연구에서는 고성능의 폴리머 콘크리트를 이용하여 현재 콘크리트나 강재로 만들어져 있어 내구성 및 시공에 문제가 있는 전기, 통신 설비제품을 새롭게 개발하고자 개발타당성을 검토하였다. 폴리머 콘크리트가 전기, 통신설비의 측면에서 갖는 장점은 높은 절연성, 불투수성, 내구성, 사용의 용이성 등이 이점이라고 하겠다. 본 연구에서 조사 연구한 바로는 전기, 통신설비와 관련한 기존 콘크리트 구조물의 대부분을 대체할 수 있으리라 여겨지며 특히 전기 설비에서 필요로 하는 애자, 금구등과 같은 절연체의 대체가 유망하리라 여겨진다. In this research works, we considered and verified the feasibility for developments of the electric and telecommunication equipments using polymer concrete, which have some demerits until now because of using concrete or steel. In the view points of developmetns of electric and telecommunication equipments, polymer concrete has some advantages, such as high insulating characteristics, high strength, convenience for handling. Therefore, polymer concrete can replace most of all the electric and telecommunication equipments made by conventional concrete, especially it can be a promising material for high voltage insulator in electrical power industry.

양궁선수와 연식정구선수의 선택반응시간 비교 실험

한남익,표내숙,문규진 釜山大學校 師範大學 1995 교사교육연구 Vol.31 No.-

The aim of this study was to investigate how the simple stimuli-response (1-choice) and the choice stimuli-response (2-choice, 4-choice) make an influence on Reaction Time (RT) of the Athletes. Subjects were 8 Athletes (Archery : 4, Soft tennis : 4). Lab Activities Manual with Software were used as an experimental device. Thirty reaction time trials will be administered. On each trial, four circles will be presented on the computer monitor.The subject task is to depress the appropriate key (DFJK) as quickly as possible when the stimuli is illuminated. The experimental data were analysied by Regression and Paired t-test through SPSS/PC+. The experimental results were as followed. The RT increaces by nearly an equal amount each time the number of alternative is doubled(1 to 2 to 4). The relationship between the choice RT and the Logarithm to the base two of the number of stimulus alternative should be so linear. The RT values of Soft-tennis ball group are shown on the faster on the choice stimuli-response than Archery group(P<.05).

결과지식과 상대빈도에 관한 이론적 연구

한남익,표내숙 釜山大學校 附設 體育科學硏究所 1997 體育科學硏究所 論文集 Vol.12 No.-

To overcome the negative effects of too frequent feedback, researchers have explored several different schedules for reducing the frequency of augmented feedback, among them summary feedback, average feedback and bandwidth feedback. Summary feedback involves withholding feedback from subjects until the last trial in a block is completed, and then presenting feedback about each trial. A variation of this method called average feedback presents subject with only the means of the trial block. The bandwidth feedback refer to a range of correctness related to performance and is the type of feedback used "naturally" by those who provide augmented feedback to others(such as teachers and therapists). Summary feedback, average feedback and bandwidth feedback have similar effects on learning, and these schedules are more effective them every-trial feedback. During acquisition, the performance of the average, summary and bandwidth feedback generally was poorer the every-trial feedback. However if the take being learned is measured by performance on the retention tests, after any temporary effects of the feedback manipulations during practice have dissipated.

볼 엔드밀 가공시의 절삭특성에 관한 고찰

홍남표,김병희 江原大學校 産業技術硏究所 1997 産業技術硏究 Vol.17 No.-

This paper deals with the study on the cutting characteristics in ball endmilling process. First of all, the effects of the geometric cutting conditions such as the cutting conditions such as the cutting speed, feedrates and the path interval on the surface integrity were evaluated by the analytical and the experimental approaches. Secondly, the cutting mechanism model was developed to predict the cutting mechanism model was developed to predict the cutting force accurately. Prediction of cutting force make it possible to predict the shape error, estimate system stability and build the reliable adaptive control system. A large amount of experimental set are performed to show the validities of the proposed theories and to investigate the effect of cutting geometry such as rubbing effects, burr effects and etc.

심리적 불응기(PRP)에 대한 이론적 연구

한남익,표내숙,조영제 釜山大學校 師範大學 1995 교사교육연구 Vol.30 No.-

Psychological Refractory Period is the delay in the response to the second of two closely spaced stimuli. This important phenomenon was discovered by Telford(1931), who named it the Psychological Refractory Period. A widely accepted theory to account for the PRP is the Single Channel theory. The Single Channel Theory proposed that subject can attend to only one decision process at a time. Another important result in studies of refractoriness is the effect of the inter-stimulus interval and number of alternatives on delay. PRP which is related with the characteristic feature of reaction capacity at the time of human's information transaction is very important for some human's activity which is requring rapid human response. Whenever training of discountinuous reaction or new information for the correction of reaction is necessary, the effect of PRP appears with a rapid and continuous system. A theoritical study on PRP is one of the themes which can most appropriately the success of feint.

三寶寺刹의 造景樹木 植栽現況에 관한 硏究

金南喆,洪光杓 동국대학교 사찰조경연구소 1992 寺刹造景硏究 Vol.1 No.-

This study was to analyze the planting status of woody landcape plants of three-treasure temples in Korea, Tongdo-sa, Haein-sa, Songgwang-sa, with the purpose to provide the fundamental informations which can be used to the landscape architecture of traditional or morden temple. The results obtained are as following ; 1. Landscape woody plants species of three temples was 92 species. Tongdo-sa had 58 species, 52 species in Songgwang-sa, 51 species in Haein-sa each. 2. The same species among these temples was 21 species. 3. The rate of the native species to the introduced species was 8:2.

발화기구의 정량적 해석을 위한 재현 실험 : 1차년도 전기화재 재현 Reconstruction for Electrical Fire

박남규,김상현,김진표,김윤희,문병선,조영진 內務部 國立科學搜査硏究所 2001 國立 科學 搜査 硏究所 年報 Vol.33 No.-

한국 중등교사의 교육이데올로기에 관한 조사 연구

이남표 漢陽大學校 師範大學 1986 論文集 Vol.- No.4

This study was designed to construct and standardize a Korean-version of the Educational Ideologies Inventory, originally developed by William F. O'Neill with his permission to do so. A preliminary inventory was administered to a total of 210 college students majoring in education by asking to rate a 5-point Likert-type scale. Following the procedures in item-analysis for discriminative levels and internal consistency, a total of 72 items were selected for the Korean-version of the Inventory, assigning 12 items were as per 6 categories, namely, Fundamentalism, Intellectualism, Conservatism, Liberalism, Liberationism and Anarchism. The revised Inventory was administered to a total of 423 secondary school teachers, serving as a stratified representative sample from 4 schools each in the provinces and Seoul city. Results reveal that 1) the male teachers tend to be more conservative than the teachers of opposite sex, while the reverse trend was observed as for the progressive trend, 2) the younger the age, the more progressive, and the elder, the more conservative trend was observed, 3) the longer in duration of service, the more conservative, and 4) the higher the socio-economic status, the more conservative trend was observed, 5) no significant difference in educational ideologies was found between the birth place and the principal place of service, 6) teachers serving in the rural area tend to be more conservative, and finally 7) there was no significant difference in educational ideologies between the teachers in the public and private institutions.