• 제목/요약/키워드: experiment training

검색결과 1,039건 처리시간 0.027초

역동적 시각-운동 통합 훈련이 시지각 처리 속도에 미치는 영향 (The Effect of Dynamic Visual-Motor Integration Training on the Visual Perception Reaction Velocity)

  • 송민옥;이은실;박성호
    • 대한통합의학회지
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    • 제3권4호
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    • pp.37-42
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    • 2015
  • Purpose: This study was conducted to test the impact of The Dynamic Visual-Motor integration training has effect on the visual perception reaction velocity. Dynavision were used to measure data from the participating 24 students(K college). Method : The participants were the 24 students of 'K' College in Busan in there twenties. They were divided into the The Dynamic Visual-Motor integration training group and the control group. To know if the Dynamic Visual-Motor integration training has effect on the visual perception reaction velocity, the Dynamic Visual-Motor integration training was implemented triweekly for 4 weeks. In Dynamic Visual-Motor integration training the ball should be grasped with one hand and threw by an arm. Only the balls threw beyond the objective point were counted. The visual perception reaction velocity and the number of response were measured before and after experiment by Dynavision. Result : Firstly, the visual perception reaction velocity was increased in Dynamic Visual-Motor integration training group compared with control group. Secondly, the number of response was also increased in Dynamic Visual-Motor integration training group compared with control group. Conclusion : As a result of The Dynamic Visual-Motor integration training has an effect on the visual perception reaction velocity and the number of response. The Dynamic Visual-Motor integration training seems to be effective for cerebral apoplexy patient who has visual perceptional disability or cerebral palsy child in training for visual perceptional development or daily living activities development. Study participated by more detailed and practical patients in hospital is needed.

PRODUCTION RESPONSES OF CROSSBRED HOLSTEIN MILKING COWS FED UREA-TREATED RICE STRAW AT THREE DIFFERENT FIBER LEVELS

  • Promma, S.;Jeenklum, P.;Indratula, T.
    • Asian-Australasian Journal of Animal Sciences
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    • 제6권4호
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    • pp.509-514
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    • 1993
  • The experiment was conducted to determine the effect of different fiber levels on milk production of crossbred Holstein milking cows fed urea-treated rice straw (UTS) as a roughage. Eight cows were allotted into 2 squares of 4 cows each with 4 treatments by a balanced design. The treatments were 17%, 22%, and 24% crude fiber (CF) diets and Thai feeding system (free choice of roughage and 1 kg of concentrates/2 kg of milk) as a control. Body weight change was not significantly different among the treatments during the experiment. Milk production (4% FCM) and milk protein content wee not different among the treatments, but milk fat content was low in the 17% CF group and high in the control group. Cows fed the 17% CF diet consumed less UTS and more concentrates than the others, and consequently total DM intake was not different among the treatments. The feed conversion ratio was significantly higher in the control. Feed cost per kg milk was lowest in the control and highest in the 17% CF diet. The fiber content of the diet would be more than 17%, preferably 22-24% for normally producing Thai crossbred Holstein cows when the UTS was fed as a main roughage source.

초등학교 과학 실험에서의 안전사고 최소화 방안 (The Suggestions for the Minimization of Safety Accidents in the Primary Science Experiments)

  • 권치순;최은선
    • 대한지구과학교육학회지
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    • 제2권1호
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    • pp.13-22
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    • 2009
  • This study examined the dangerous elements in primary science textbooks and had some suggestions for the minimization of safety accidents in the science class experiments. The research results are as follows: 1) The rate of accident in the primary science experiments was not high, but potential for the outbreak of safety accidents was always present. 2) it is necessary to include safety contents on science textbooks. The survey revealed that only 18 percent of safety education materials include on science textbooks. 3) It will be desirable for science experiment lessons to include safety education materials for safety experiments. This could also help the students develop the right recognition and attitude regarding safety. 4) There was lack of safety devices those were required to be kept at science labs. The survey showed that about 20 percent of the schools had the experimental clothing. 5) Safety training is often conducted in an overly simplified manner, and no special time is allocated to it. In conclusion, to improve the problems pertaining to school safety accident, courses on safety training are essential as textbooks and teachers. Constant and systematic instructions on safety should be done in order to prevent potential safety accidents.

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과학적 전투발전을 위한 전투실험 발전 방향 (A direction of warfighting experiments for a scientific combat Development)

  • 정춘일;이명우
    • 안보군사학연구
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    • 통권5호
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    • pp.351-392
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    • 2007
  • Combat Development is process of studying and developing concept, doctrine, weapon systems, organization and training for the improvement of combat capability to be ready present and future warfare. The combat development domain consists of 6 fields Doctrine, Organization, Material, Training, Personnel, and Facilities. The cornerstones of combat development are "How to prepare" and "How to fight" in the future warfare. ROK- TRADOC(Republic of Korea Army Training and Doctrine Command) has implemented combat development that applies CBRS (Concept-Based Requirements System) and "Vision - Capstone concept - operating and functional concept - FOC(Future Operational Capabilities) Requirements". To prepare for the possibility or new types or wars in the future, the creation of new concept and system is essential. Though verification with various instruments, combat power can be secured and exhibited. Combat development by empirical mind estimation means that is no longer relevant.To prepare combat development based on scientific analysis, there is a need for powerful engineering analysis and verification, in order to prepare for uncertain and diverse future battlefield environments. In this thesis, warfighting experiment is essential ways and means to pursue the scientific combat development ; investigated tendency of combat development environment, and analyzed diversification aspects of possible future warfare. In conclusion, concept of campaign experiment and role is the conerstone of scientific combat development; and lays out the roadmap of all affecting components to its development.

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기능적 전기 자극이 뇌졸중 환자의 균형과 보행에 미치는 영향 (The Effects of FES on Balance and Gait Ability in Patients of Stroke Patients)

  • 홍종윤;이효정
    • 대한통합의학회지
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    • 제7권2호
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    • pp.95-109
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    • 2019
  • Purpose : This study was conducted to evaluate the effects of FES with abdominal muscle contraction before virtual reality training on balance and gait ability in patients of stroke patients. Methods : The subjects were 30 stroke patients who satisfied the selection criteria. They were randomly assigned to a group receiving functional electrical stimulation with a virtual reality training program (the experiment group, n=15) and placebo functional electrical stimulation with a virtual reality training program (the control group, n=15). The program consisted of three 30-min sessions per week for six weeks. The timed up and go test (TUG), the BT4, the G-WALK were used to estimate subjects' balance, gait before and after the program. For the experiment group, the functional electrical stimulation was applied to the external oblique and the rectus abdominis, For the control group, the same program and the placebo functional electrical stimulation were applied. Results : There were significant improvements in the subscales of the balance and gait ability test of those who participated in the functional electrical stimulation, while the control group showed no significant changes. Conclusion : Therefore, functional electrical stimulation with virtual reality effectively improved the balance and gait ability in patients with chronic stroke.

Prediction of plasma etching using genetic-algorithm controlled backpropagation neural network

  • Kim, Sung-Mo;Kim, Byung-Whan
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 2003년도 ICCAS
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    • pp.1305-1308
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    • 2003
  • A new technique is presented to construct a predictive model of plasma etch process. This was accomplished by combining a backpropagation neural network (BPNN) and a genetic algorithm (GA). The predictive model constructed in this way is referred to as a GA-BPNN. The GA played a role of controlling training factors simultaneously. The training factors to be optimized are the hidden neuron, training tolerance, initial weight magnitude, and two gradients of bipolar sigmoid and linear functions. Each etch response was optimized separately. The proposed scheme was evaluated with a set of experimental plasma etch data. The etch process was characterized by a $2^3$ full factorial experiment. The etch responses modeled are aluminum (A1) etch rate, silica profile angle, A1 selectivity, and dc bias. Additional test data were prepared to evaluate model appropriateness. The GA-BPNN was compared to a conventional BPNN. Compared to the BPNN, the GA-BPNN demonstrated an improvement of more than 20% for all etch responses. The improvement was significant in the case of A1 etch rate.

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Damping-off Disease in Mulberry Seedlings and Its Management

  • Naik, V.Nishitha;Sharma, D.D.;Chowdary, N.B.;Mala, V.R.
    • International Journal of Industrial Entomology and Biomaterials
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    • 제8권2호
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    • pp.201-205
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    • 2004
  • During the routine survey, the mortality of mulberry seedlings was noticed due to damping-off disease. The disease recognized by rotting of emerged seedlings near the soil line (just below the soil level) resulting in collapse of the seedlings. Two fungi were isolated from affected samples and identified as Alternaria alternata (Fr.) Keissler and Fusarium solani (Mart.) Sacc. Both the fungi were found to be responsible in causing pre and post emergence damping-off of seedlings in mulberry. For management of the disease, an experiment was conducted using fungicides. These fungicides were applied as seed treatment; soil drenching and foliar spray alone and in combination. Among the different treatments, integration of seed treatment and soil application of Dithane M-45 (Mancozeb 75% WP) + Bavistin (Carbendazim 50% WP) followed by foliar spray of these fungicides (after 35 days of sowing) resulted in better survivability of seedlings (93.3 %) on $90^th$ day and controlled the pre and post emergence damping off by 100 and 89.5%, respectively over the check.

심상 훈련이 정상성인의 균형에 미치는 효과 (Effects of mental practice on the balance of healthy adults)

  • 김명권;차현규
    • 한국콘텐츠학회:학술대회논문집
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    • 한국콘텐츠학회 2016년도 춘계 종합학술대회 논문집
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    • pp.265-266
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    • 2016
  • This study aimed to examine the effects of mental practice on normal persons' balance ability. Thirty subjects that participated in the experiment were randomly assigned to an experimental group of 15 subjects and a control group of 15 subjects. Both the experimental group and the control group underwent balance training conducted in a sitting position on a gym ball for 20 minutes per time, five times per week for four weeks and the experimental group additionally underwent mental practice for 10 minutes before balance training. After the intervention, balance measuring equipment (Good Balance, Metitur, Finland) was used to quantitatively measure balance ability. Significant differences in the post-training gains in variable of Medial-lateral, Index of balance function, Time were observed between the experimental group and the control group (p<0.05). Both Application of mental practice with balance training aimed at improving balance ability is considered to have positive effect.

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시간압력 상황에서 인지양식과 학습맥락이 시각변별의 기술습득과 전이에 미치는 효과 (Effects of Cognitive Style and Training Context on Visual Discrimination Skill Acquisition and Transfer under Time Pressure)

  • 박정민;김신우;이지선;손영우;한광희
    • 감성과학
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    • 제6권3호
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    • pp.63-72
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    • 2003
  • 본 연구는 시간압력이 주어진 상황에서 개인의 고유한 인지특성인 인지양식과 과제의 난이도에 따른 학습맥락이 시각변별과제의 기술습득과 전이에 어떠한 영향을 주는지 알아보고자 하였다. 자극은 다각형 비교과제를 이용하였으며, 실험은 스크린 세션, 훈련 세션 그리고 전이 세션으로 구성되었다. 스크린 세션에서는 참가자를 인지양식(분석적-전체적)에 따라 구분하였으며, 훈련 세션에서는 학습맥락의 구분을 위해 과제의 난이도를 어려운 조건과 쉬운 조건으로 나누었다. 전이 세션에서는 모든 피험자가 새로운 난이도의 다각형을 비교하였다. 훈련 세션과 전이 세션에서는 시간압력의 효과를 보기 위해, 1.5초가 지나면 자극이 사라지게 하였다. 전 세션에 걸쳐 정확도와 반응시간을 측정하였다 실험결과, 분석적 처리자는 훈련 세션 동안 전체적 처리자와 같은 수준의 빠른 반응을 보이나, 훈련이 지속될수록 반응시간의 기울기가 증가하였다. 이러한 결과는 분석적 처리자가 자극의 세부특징들을 일 대 일로 비교하는 원래의 처리스타일로 회귀했음을 의미한다. 반면, 분석적 처리를 유도하는 어려운 학습맥락에서 훈련한 전체적 처리자의 경우, 전이 세션의 초기블록에서 반응시간의 증가를 보였다. 이것은 전체적 처리자가 어려운 학습맥락에 의해 분석적 전략을 개발했다는 것을 의미한다. 이러한 결과들을 통해 시간압력 상황에서도 개인의 인지양식의 차이가 인지전략의 개발 및 기술습득에 영향을 미치는 것을 확인할 수 있다.

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스마트 러닝 시스템을 활용한 수학 문제 풀이 맥락에서 메타인지 훈련의 효과 (The Effects of Metacognitive Training in Math Problem Solving Using Smart Learning System)

  • 김성태;강현민
    • 문화기술의 융합
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    • 제8권1호
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    • pp.441-452
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    • 2022
  • 학습 환경에서 메타인지를 활용한 훈련은 1990년대부터 꾸준히 연구되어온 주제 중 하나다. 메타인지는 크게 선언적 메타인지 지식과 절차적 메타인지 지식 (메타인지 기술)로 나누어 볼 수 있고 이에 따라 메타인지 훈련 역시 두 메타인지 지식 중 하나에 초점을 맞추어 연구가 이루어졌다. 본 연구에서는 메타인지 기술의 훈련이 수학 문제 풀이 맥락에서 어떤 역할을 하는지 살펴보고자 하였다. 구체적으로 학습자는 정해진 시간 안에 여러 난이도의 문제가 섞인 수학 문제들을 푸는 시험 맥락에서 문제 난이도 예측, 풀이시간 예측, 정답 여부 예측을 실시하였으며 이를 총5주간에 걸쳐 5회 반복하였다. 분석 결과, 훈련 전보다 훈련 후에 세 가지 예측 지표 모두에서 유의한 차이가 있는 것으로 나타났으며 훈련을 통해 학습자의 문제 풀이 전략에 도움을 줄 수 있다는 사실을 밝혔다. 또한 메타인지 훈련을 실시하지 않고 동일한 학습 과정을 진행한 조건과 시험불안 정도의 차이가 있는지 분석하였다. 그 결과, 훈련을 실시한 조건의 학습자가 5주차에 더 적은 정서 불안과 관계 불안을 보고한 것을 알 수 있었다. 메타인지 기술 훈련을 통한 이러한 효과는 학습자의 시험 상황에 필요한 학습 전략 향상에 도움이 될 것으로 예상된다.