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Analysis of Content Validity and Case Studies of Responses to Scientific Questions on Qualification Examination for High School Graduation (고졸검정고시 과학 문항 타당도와 문항 반응 사례 분석)

  • MOON, Sungchae
    • Journal of Fisheries and Marine Sciences Education
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    • v.29 no.1
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    • pp.64-79
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    • 2017
  • This study was to evaluate the suitability of scientific questions as qualification examination for high school graduation by content validity and item response with three examinees and two preliminary examinees. As a result, scientific questions were concentrated on two units of six units of total, and application appeared to be lacking problem area by 8% compared to understanding and application. Examinees and preliminary examinees chose correct answers most by hap or guess, sometimes by experience or common sense, and the least by scientific concept. In addition, they could chose correct answers by hap or guess because there were words that implied the correct answer in questions and answers, or because they could compared and/or analyzed questions and answers. With these results, two proposals were suggested as follows; (1) scientific questions of qualification examination for high school graduation should measure basic scientific literacy. (2) specific criteria for science literacy in qualification examination for high school graduation should be set.

3-Dimensional Sensor Array Shape Calibration in Near Field Environment (근거리 환경에서의 3차원 배열센서 형상 보정 기법)

  • Ryu, Chang-Soo;Eoh, Soo-Hae;Kang, Hyun-Koo;Rhyoo, Sang-Wook
    • Journal of the Korean Society of Industry Convergence
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    • v.6 no.4
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    • pp.361-366
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    • 2003
  • Most sensor array signal processing methods for multiple source localization require knowledge of the correct shape of array(the correct positions of sensors that consist array), because sensor position uncertainty can severely degrade the performance of array signal processing. In particular, it is assumed that the correct positions of the sensors are known, but the known positions may not represent the true sensor positions. Various algorithms have been proposed for 2-D sensor array shape calibration in far field environment. However, they are not available in near field. In this paper, 3-D sensor array shape calibration algorithm is proposed, which is available in near field.

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The Effects of Correct Implementation of Six Sigma Practices on Customer Focus Performance, Quality Performance and Business Performance (식스시그마의 올바른 실행이 고객관점 성과, 품질성과 및 사업성과에 미치는 영향)

  • Yoon, Jae-Hong
    • Korean Management Science Review
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    • v.30 no.1
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    • pp.59-72
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    • 2013
  • This research has seven factors such as top management leadership, belt system operation, implementation of systematic methods, adequate project performance measurement, customer focus performance, quality performance and business performance. Those are critical to correct implementation of Six Sigma. I set seven hypotheses which represented the relationships among the seven factors, gathered questionnaires and analyzed the data. Top management leadership affected positively the adequate project performance measurement and the belt system operation, The belt system operation affected the implementation of systematic methods positively and it also affected the adequate project performance measurement. It affected positively the customer focus performance, the quality performance and the business performance, respectively.

Polar-Natural Distance and Curve Reconstruction

  • Kim, Hyoung-Seok;Kim, Ho-Sook
    • International Journal of Contents
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    • v.11 no.2
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    • pp.9-14
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    • 2015
  • We propose a new distance measure between 2-dimensional points to provide a total order for an entire point set and to reflect the correct geometric meaning of the naturalness of the point ordering. In general, there is no total order for 2-dimensional point sets, so curve reconstruction algorithms do not solve the self-intersection problem because the distance used in the previous methods is the Euclidean distance. A natural distance based on Brownian motion was previously proposed to solve the self-intersection problem. However, the distance reflects the wrong geometric meaning of the naturalness. In this paper, we correct the disadvantage of the natural distance by introducing a polar-natural distance, and we also propose a new curve reconstruction algorithm that is based on the polar-natural distance. Our experiments show that the new distance adequately reflects the correct geometric meaning, so non-simple curve reconstruction can be solved.

Design of High-Speed Dynamic CMOS PLA (고속 다이나믹 CMOS PLA의 설계)

  • 김윤홍;임인칠
    • Journal of the Korean Institute of Telematics and Electronics B
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    • v.28B no.11
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    • pp.859-865
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    • 1991
  • The paper proposes a design of high-speed dynamic CMOS PLA (Programmable Logic Array) which performs stable circuit operation. The race problem which nay occur in a NOR-NOR implementation of PLA is free in the proposed dynamic CMOS PLA by delaying time between the clocks to the AND- and to the OR-planes. The delay element has the same structure as the product line of the longest delay in the AND p`ane. Therefore it is unnecessary to design the delay element or to calculate correct delay time. The correct delay generated by the delay element makes the dynamic CMOS PLA to perform correct and stable circuit operation. Theproposed dynamic CMOS PLA has few variation of switching delay with the increasing number of inputs or outputs in PLA. It is verified by SPICE circuit simulation that the proposed dynamic CMOS PLA has the better performance over existing dynamic CMOS PLA's.

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The Effects of Listening Comprehension and Decoding Skills on Spelling Achievement of EFL Freshman Students

  • Al-Jarf, Reima Sado
    • English Language & Literature Teaching
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    • v.11 no.2
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    • pp.35-50
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    • 2005
  • Thirty six EFL freshman students at the College of Languages and Translation, King Saud University, Riyadh, Saudi Arabia were given a dictation, a listening comprehension test and a decoding test. The purpose of the study was to find out whether EFL freshmen students' spelling ability correlates with their listening comprehension and decoding skills. Data analysis showed that the typical EFL freshman student misspelled 41.5% of the words on the dictation, gave 49.5% correct responses on the listening comprehension test, and 52% correct responses on the decoding test. The median and mean scores showed that the subjects' spelling, listening and decoding achievement is low, which implied that the subjects were having spelling, listening comprehension and decoding difficulties. The students' spelling errors and correct listening comprehension and decoding responses revealed strong correlations between spelling ability, listening comprehension and decoding skills. This means that good spelling ability in EFL is related to good listening comprehension and good decoding skills. The better the listening comprehension and decoding abilities, the fewer the spelling errors. When listening comprehension and decoding skills are poor, spelling ability is also poor. Recommendations for spelling, listening and decoding instruction are given.

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Reasons for Adopting Weak Opinions in Islamic Jurisprudence

  • Alharthy, Meshal Qabbas
    • International Journal of Computer Science & Network Security
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    • v.22 no.8
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    • pp.323-327
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    • 2022
  • The field of this study is in Islamic jurisprudence. Taking the preferred saying is contrary to the original, and takes it if necessity or need arises. There are reasons for adopting the preferred saying that were mentioned in this research so that the mufti and jurist know when to take the preferred saying, and when to act with the most correct saying. The origin is the work of the jurist and mufti by saying the most correct. If the necessity or the need that prompted the mufti to take the preferred saying ceases, then he returns to work with the most correct saying, and gives it precedence over the most preferred opinion. The researcher recommends that this topic be given more attention from researchers, and that it is taken care of in jurisprudential developments; So that the embarrassment of the nation is lifted, and the jurists clarify the legal ruling on emerging issues.

Procedure for the correct placement of Long-Thread Short-Thread couplers in mechanical connections of reinforcing bars

  • Enrique Hernandez-Montes;Fouzia Larbi-Chaht;Mohamed Mouli;Lahouari Mammar;Sadek Mahdjouba;Ahmed M. Mohamed;Abdelkader Medjahed;Ahmed Messaoud-Djebara;Luisa Maria Gil-Martin
    • Advances in concrete construction
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    • v.16 no.2
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    • pp.91-96
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    • 2023
  • The present work provides a new solution to both the correct execution and quality control of straight thread couplers for reinforcing bars under monotonic loading conditions. A random survey on already constructed couplers together with a new mechanical model, adjusted with an experimental campaign, led us to present this new procedure in reinforced concrete construction. Formulation and methodology for a correct placement of straight thread couplers is presented.

Effects of Self-Administered Interview on Correct Recall and Memory Protection in the Situation of Delay and Misinformation (시간 지연과 오정보 제시 상황에서 초기 자기기입식 면담(SAI)이 정확 회상과 기억 보호에 미치는 영향)

  • Ham, Keunsoo;Kim, Yeaseul;Kim, Kipyung;Jeong, Hojin
    • Korean Journal of Forensic Psychology
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    • v.11 no.1
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    • pp.1-20
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    • 2020
  • Witnesses will be exposed to a variety of misinformation after the witnessing of the event and state at the scene of the investigation after the delay period. This study was conducted to promote correct recall reporting without being affected by factors that against correct recall. Self-Administered Interview(SAI) is known to obtain eyewitness accounts quickly and accurately. Therefore, we performed a SAI to see if it reported more information than the control group that did not perform the SAI. Also, it also performed that correct information was maintained without being affected by misinformation and delay. Eighty-eight participants were asked to perform SAI or game after showing a video of mock crime. Misinformation was presented in the first or second session to see if it affected recall. An analysis of responses from the final test conducted in the second session by participants showed that groups that conducted SAI after a four-week delay reported more correct information than control groups, while there was no difference between incorrect- and confabulation information. In particular, the timing of presenting misinformation did not affect the amount of recall. This suggests that conducting the SAI immediately after witnessing the event protects correct information even after four weeks. Finally, the significance and limitations of this study, and subsequent studies were discussed.

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An Exploratory Study on ChatGPT's Performance to Answer to Police-related Traffic Laws: Using the Driver's License Test and the Road Traffic Accident Appraiser (ChatGPT의 경찰 관련 교통법규 응답 능력에 대한 탐색적 연구 - 운전면허 학과시험과 도로교통사고감정사 1차 시험을 대상으로 -)

  • Sang-yub Lee
    • Journal of Digital Policy
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    • v.2 no.4
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    • pp.1-10
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    • 2023
  • This study conducted preliminary study to identify effective ways to use ChatGPT in traffic policing by analyzing ChatGPT's responses to the driver's license test and the road traffic accident appraiser test. I collected ChatGPT responses for the driver's license test item pool and the road traffic accident appraiser test using the OpenAI API with Python code for 30 iterative experiments, and analyzed the percentage of correct answers by test, year, section, and consistency. First, the average correct answer rate for the driver's license test and the for road traffic accident appraisers test was 44.60% and 35.45%, respectively, which was lower than the pass criteria, and the correct answer rate after 2022 was lower than the average correct answer rate. Second, the percentage of correct answers by section ranged from 29.69% to 56.80%, showing a significant difference. Third, it consistently produced the same response more than 95% of the time when the answer was correct. To effectively utilize ChatGPT, it is necessary to have user expertise, evaluation data and analysis methods, design a quality traffic law corpus and periodic learning.