• Title/Summary/Keyword: Video-tape

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Behavioural Characteristics of Walleye Pollack Theragra chalcogramma by Acoustic Sound Conditioning (음향 순치에 의한 명태의 행동 특성)

  • 박용석
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.32 no.4
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    • pp.331-339
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    • 1996
  • It is most important to understand the behaviour of fish in case of the betterment of the current fishing gear and methods or the development of the conditioning by acoustic sound in marine ranching. This investigation has been attempted to provide for the prediction of the response action of fish to acoustic sound. The experimental fish was conditioned with sound and bait. As the acoustic sound for stimulus, the pure tone of sine waveform at the frequency of 200Hz was used. This pure tone was determined from previous investigation about hearing ability of walleye pollock Theragra chalcogramma. The fork length of walleye pollock used in this experiment was 385~450mm. The conditioning proceeding was recorded in the video tape recorder. Frequency of appearance in the feeding area was analyzed with computer and video tape recorder. The position of fish was tracked using the mouse cursor and picture mixed on the superimpose board. The response of conditioned fish to sound stimulus was appeared in the 8th day firstly. The conditioned fish remembered the stimulus sound for 4 days. Average frequency of appearance in the feeding area during the 30 seconds sound projection or 1 minute after the sound stimulus was 51%, and was higher than before it.

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Orientations and Execution of Beginning Secondary Science Teachers' Teaching Practices: Motivating and Understanding Students (초임 중등 과학 교사의 교수활동에 대한 지향과 실행: 동기 유발과 학생 이해를 중심으로)

  • Kwon, Hong-Jin;Kim, Chan-Jong;Choe, Seung-Urn
    • Journal of the Korean earth science society
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    • v.27 no.3
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    • pp.289-301
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    • 2006
  • The purpose of this study is to investigate beginning secondary science teachers' teaching practices in terms of motivating and understanding students. Six first-year teachers participated in this study. Data were collected by classroom observations and structured interviews. Instructional materials used during the class were also collected to understand teaching practice. Lessons observed were video-tape recorded and the teachers were interviewed. Video- and audio-tape recording were transcribed. The framework, developed by Knowles Project Team of Michigan State University, was adopted and revised according to Korean classroom context and employed as an analytical tool for teaching practices. The beginning secondary science teachers intention ranged from 'Managing Work' to 'School Science.' No teachers revealed 'Reform Science Teaching' orientation. For the execution of science lessons, one teacher with 'Managing Work' orientation showed 'expert' level of execution, but the others executed at a 'novice' level. Beginning science teachers need to be guided and informed about 'Reform Science Teaching' for motivating and understanding students to develop professionally.

Vision-based Real-time Velocity Detection Method (비젼 베이스 실시간 속도 검출 방법)

  • Kim Beom-Seok;Park Sung-Il;Ko Young-Hyuk
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2006.05a
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    • pp.301-304
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    • 2006
  • As is different from formerly used fixing camera method in this paper, proposed method that can measure the speed of vehicles and logarithm of vehicles in video. Vehicles that proposed method runs with 50km/h, 80km/h, 90km/h's the speed recording on Video Tape beginning point and time of reaching point draw, and calculated 47.57km/h, 81.20km/h, the 90.00km/h speed by time and distance, the tracking cars and the velocity detection in video with the 'begin-line mark' and the 'end-line mark' processing.

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Design of Learning Achievement Evaluation Module of Intelligent Computer Assisted Instruction with Various Fuzzy Environment (다양한 퍼지 환경을 갖는 지능형 교수 시스템의 학습 성취도 평가 모듈 설계)

  • Won Sung-Hyun
    • Management & Information Systems Review
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    • v.2
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    • pp.311-334
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    • 1998
  • By decreasing in CPU price and development of computer assembling technology, personal computer fake a good chance to accelerate its supply. Recently, as being introduced new computing technology so called multi media, teaming assist system which is based on single media such as studying book, cassette tape, video tape, or something else is rapidly being replaced by new assist education system based on multi media in which it is operated by the personal computer. In the computer assist education system, there is an evaluation module which appraise learner's study level into the next study strategy. At the view of this point, this part is very important. In this part, there are some factors like Importance, complexity, or difficulty which commonly include fuzzy factors in our surrounding. But until now, we are still out of the level to handle the evaluation module adequately among the some studies. In this study, we would like to suggest a new module that evaluate learning achievement of ICAI which have a variety of fuzzy environment. We combine Independent fuzzy environment like importance, complexity, difficulty into making total evaluation of learner's achievement. By the result, with expressing by linguistic form, this study can provide the theoretical basis in which we will be able to carry out sentence toward evaluation among elementary school.

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A Low-Cost Approach for Path Programming of Terrestrial Drones on a Construction Site

  • Kim, Jeffrey;Craig, James
    • International conference on construction engineering and project management
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    • 2022.06a
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    • pp.319-327
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    • 2022
  • Robots for construction sites, although not deeply widespread, are finding applications in the duties of project monitoring, material movement, documentation, security, and simple repetitive construction-related tasks. A significant shortcoming in the use of robots is the complexity involved in programming and re-programming an automation routine. Robotic programming is not an expected skill set of the traditional construction industry professional. Therefore, this research seeks to deliver a low-cost approach toward re-programming that does not involve a programmer's skill set. The researchers in this study examined an approach toward programming a terrestrial-based drone so that it follows a taped path. By doing so, if an alternative path is required, programmers would not be needed to re-program any part of the automated routine. Changing the path of the drone simply requires removing the tape and placing a different path - ideally simplifying the process and quickly allowing practitioners to implement a new automated routine. Python programming scripts were used with a DJI Robomaster EP Core drone, and a terrain navigation assessment was conducted. The study examined the pass/fail rates for a series of trial run over different terrains. The analysis of this data along with video recording for each trial run allowed the researchers to conclude that the accuracy of the tape follow technique was predictable on each of the terrain surfaces. The accuracy and predictability inform a non-coding construction practitioner of the optimal placement of the taped path. This paper further presents limitations and suggestions for some possible extended research options for this study.

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Video Server with Optical Mass Storage (광주크박스 저장장치에 기반한 비디오 서버)

  • Lee, Jong-Min;Cha, Ho-Jung;Oh, Jae-Hak;Park, Byung-Joon
    • Journal of KIISE:Computer Systems and Theory
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    • v.29 no.6
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    • pp.318-330
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    • 2002
  • This paper discusses the design and implementation of a video server which uses tertiary device, such as magneto-optical jukebox or tape library, as a source of media archiving. In order to handle the tertiary device in the framework of disk-based stream service model, a sophisticated streaming model is required for server and it should consider the device-specific performance characteristics of tertiary storage. We have carefully designed the streaming mechanism for server whose key functionalities include stream scheduling, disk caching and admission control. The proposed system has been implemented on Windows 2000 platform which is equipped with a magneto-optical jukebox. The design principles of the server are validated with the experiments and the performance characteristics is analyzed.

A Study on the Aquisition and Use of Videorecordings in Digital Age - concerning for the public libraries in Pusan - (디지털 시대의 비디오자료 수집과 이용에 관한 연구 -부산지역 공공도서관을 중심으로-)

  • Kim Young-Kyu
    • Journal of Korean Library and Information Science Society
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    • v.30 no.2
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    • pp.199-233
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    • 1999
  • The purpose of this study is to activate the videorecordings in public libraries. The method of activation is to analysis of data which collected through questionnaire from respondent libraries. The results of the study are as follows : 1. The budget of videorecordings is absolutely short. 2 The acquisition policy of videorecordings is not planned because of short budget and little standard selection tool. 3. Most of public libraries wanted to exchange and use of videorecordings through interlibrary loan. 4. The subject of collected videorecordings was almost oriented to the education and motion pictures. 5. Specialized collection policy of public libraries in Pusan is not considered in videorecordings selection. 6. 87 percent of public libraries are not circulate videorecordings to the end-user. 7. Group watching planning of videorecordings in public libraries was done by monthly. 8. 70 percent of public libraries was not perform user reaction survey after watching. 9. 13 percent of public libraries has done the video tape recording of TV programming. 10. Most of public libraries had not a video to introduce themselves and user also had not a plan to create a video. 11. Most of public libraries recognized the copyright law but they wanted to reproduct the videorecordings for user with permission of authors.

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ESP : A DVR File Format for Enhanced Recording and Searching (ESP : 녹화 및 검색 기능 향상을 위한 DVR전용 파일 포맷)

  • Park, Jae-Kyung;Yang, Seung-Min
    • The KIPS Transactions:PartB
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    • v.16B no.1
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    • pp.25-34
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    • 2009
  • DVR(Digital Video Recorder) system stores video inputs in compressed digital formats and retrieve them. DVR system has several advantages over traditional analog tape recorder system which are (1) improved real-time monitoring, recording and searching capability, and (2) other capabilities such as watermarking and remote monitoring through network. AVI format is the most popular format used for DVR systems. However, AVI format has drawbacks in recording and searching due to structural problem. Some vendors develop and use their own format, do not open the format to the public. In this paper, ESP format is proposed. ESP format solves the drawbacks of AVI format, and the advantages of AVI format apply to ESP format. Moreover, ESP format provides multistream recording/replay and event-recording. In result, ESP format enchances functionality of recording and searching in DVR system.

Development of an Efficacy Expectation Promoting Program for the Management of Menopause and its Effect (폐경관리를 위한 효능기대증진 프로그램 개발과 그 효과에 관한 연구)

  • Song, Ae-Ri
    • Women's Health Nursing
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    • v.4 no.3
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    • pp.348-364
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    • 1998
  • The two objectives of this study were 1) to develop an efficacy expectation promoting program for the management of menopause based on the self-efficacy theory of Bandura(1977), and 2) to investigate the effects of the efficacy expectation promoting program for the management of menopause. The first phase was to development an efficacy expectation promoting program through video tape. A telephone coaching program served as a follow-up to the efficacy expectation promoting program which provided encouragement and support to the subjects. The second phase was the experimental stage. This experimentation was conducted to determine whether an efficacy expectation promoting program based on theory of Bandura would increase the self-efficacy and the management of menopause. Results : The video which we developed consisted of 2 parts. Part one discussed the symptoms and the management of menopause. Part two reflected the vicarious step-by-step success of middle-aged women's menopause management. The telephone coaching program served as a follow up to the efficacy expectation promoting program and provided encouragement and support to the subjects. The total length of the video is 50 minutes. The hypotheses stated in phase two were supported by following results : In the two experimental groups consisting of the natural and artificial menopause groups both demonstrated significant increase in their general and concrete self-efficacy scores. In the experimental groups, both the objective and subjective menopause management scores increased n the natural and artificial menopause experimental groups. In conclusion, it was found that an efficacy expectation promoting program was an effective nursing intervention for increasing self-efficacy and management of menopause.

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A Water Model Study on Molten Metal Flow in Die Cavity of Die Casting (다이캐스트 주물의 금형공동내에서 탕류에 관한 수모델적 연구)

  • Kim, Myung-Jae;Choi, Hee-Ho;Cho, Nam-Don
    • Journal of Korea Foundry Society
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    • v.14 no.6
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    • pp.576-589
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    • 1994
  • Water modeling experiments and computer simulation for the predictions of defects of die castings are very important to produce high quality castings with less cost. The relation between the variable air vent system and the characteristics of the fluid flow in the die cavity is studied by using water modeling tests, which give ideas on reasonable designing of die cavity, vent arrangement and gating system. In order to test the water modeling, injection is done by using water containing NaCl. Flow behaviors in cavities are visualized by high speed camera and video tape recorder, and local filling time is measured with electrode sensors. Special attention is paid to the configuration of die cavity. Simulated results by computer are examined and compared with the results of water modeling experiments. There are close correlations between the simulated results and water modeling ones.

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