• Title/Summary/Keyword: scientific research process

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Eye Perception Difference Between the Conservative and the Liberal : Verification of Personal Tendency using Eye-tracking Machine

  • Kwon, Mahnwoo
    • Journal of Korea Multimedia Society
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    • v.24 no.8
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    • pp.1171-1177
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    • 2021
  • Measuring and evaluation of audience's visual message perception are crucial process for scientific production of visual content. This study tried to evaluate the difference of viewer's awareness of visual object depends on his or her inherent characteristics like conservatism using an eye tracker system. Especially, this experiment tested research questions about positive correlation between conservatism and peoples' eye movements following the sound visual messages. 57 subjects participated in the test. Two different groups were exposed to two visual elements representing 'the conservative' and 'the liberal'. The results showed that people tended to have different way of seeing visual objects according to their inherent characteristics. Also by comparing the gaze time at the object and area of interest(AOI) in visual, this study is able to verify the existence of 'positive way of seeing' and 'negative way of seeing'. The two different ways of seeing have their own trail of eye movement.

Photocurrent Characteristics of Gate/Body-Tied MOSFET-Type Photodetector with High Sensitivity

  • Jang, Juneyoung;Choi, Pyung;Lyu, Hong-Kun;Shin, Jang-Kyoo
    • Journal of Sensor Science and Technology
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    • v.31 no.1
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    • pp.1-5
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    • 2022
  • In this paper, the photocurrent characteristics of gate/body-tied (GBT) metal-oxide semiconductor field-effect transistor (MOSFET)-type photodetector with high sensitivity in the 408 nm - 941 nm range are presented. High sensitivity is important for photodetectors, which are used in several scientific and industrial applications. Owing to its inherent amplifying characteristics, the GBT MOSFET-type photodetector exhibits high sensitivity. The presented GBT MOSFET-type photodetector was designed and fabricated via a standard 0.18 ㎛ complementary metal-oxide-semiconductor (CMOS) process, and its characteristics were analyzed. The photodetector was analyzed with respect to its width to length (W/L) ratio, bias voltage, and incident-light wavelength. It was confirmed experimentally that the presented GBT MOSFET-type photodetector has over 100 times higher sensitivity than a PN-junction photodiode with the same area in the 408 nm - 941 nm range.

A Conceptual Approach to Evaluating the Reliability of a Climate Change Adaptation System

  • Park, ChangKeun;Cho, Dongin
    • Asian Journal of Innovation and Policy
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    • v.9 no.1
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    • pp.36-55
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    • 2020
  • Climate change is one of the most discussed issues in international for a today. Evaluating the effect of climate change at a regional level and setting up an appropriate policy to address the issues associated with climate change require a proper evaluation process on the climate change and adaptation projects already implemented. Although various evaluation approaches to climate change adaptation programs have been proposed, it is rare to find a proper systematic approach to evaluating the reliability of those climate change adaptation programs. In the current situation regarding the system to evaluate climate change adaptation programs, the purpose of this study is to suggest a theoretical and standardized evaluation system on the reliability of climate change adaptation schemes. The new approach suggested in this paper will be appropriate when requiring a confidence level for adaptation programs that are specially localized and categorized. Using various quantitative and qualitative evaluation methods with the inherent reality mechanism, we provide a conceptual framework to measure the reliability of climate change adaptation programs with a flexible adjustment process. With the proposed framework, it is possible to provide the level of confidence on the results collected from the evaluation systems and construct a standardized, system-wide assessment procedure toward climate change adaptation policies. By applying this approach based on scientific evidence on the reliability of climate change adaptation policies, appropriate and efficient climate change adaptation programs will be properly designed for and implemented in Korea.

Research about the Evaluation Index of Agricultural Sightseeing Garden Landscape Resources based on AHP

  • YU, Lan-ling;PIAO, Yong-ji;JIANG, Dao-zhu;Jo, Hyunju
    • Journal of Environmental Science International
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    • v.25 no.4
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    • pp.483-490
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    • 2016
  • On the basis of conducting a comprehensive investigation to agricultural sightseeing garden landscape resources, we established a evaluation index system of agricultural sightseeing garden landscape resources. From the perspective of experts, comparing the importance of all levels indicators, we obtained the weights of landscape resources evaluation index through using the Analytic Hierarchy Process. The result showed that the descending order of the weights of influence of agricultural sightseeing garden nineteen evaluation index is: reach ability (0.128), safety (0.083), location (0.078), participatory (0.076), cultural value (0.058), ecological conditions (0.057), scenic beauty (0.0505), environmental quality (0.051), featured properties (0.0501), environmental tolerance (0.048), reputation (0.047), environmental capacity (0.045), humanize (0.041), spots configuration (0.034), applicable travel period (0.033), scientific value (0.032), art value (0.031), holistic (0.03), suitability (0.027), it can provide a framework and basis for the planning, management, protection and exploitation of agricultural sightseeing garden landscape resources.

The Role and Importance of Gesture in Science Exploration (과학 탐구에서 몸짓의 역할과 중요성)

  • Han Jae young;Choi Jung hoon;Shin Young Joo;Son Jeong woo;Cha Jeong Ho;Hong Jun Euy
    • Journal of Korean Elementary Science Education
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    • v.25 no.1
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    • pp.51-58
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    • 2006
  • The language and the gestures of a teacher, generally, have a great influence on the effect of a lesson. This is because subject content is transferred to students by teachers' language and gestures. In the science lessons which focus on experiments, the language and gestures of both students and teachers will help the learning of scientific content. However, the role of gestures, despite its importance, has rarely been investigated in science education research. The role of gestures of students and teachers is a much needed area of study. This study investigated the gestures observed in the experimental process performed by students who participated in a science exploration activity. Students' gestures play an essential role in the successful performance of the experiment. and they could function as a process of solving the contradictory situation. In addition, the demonstration and the communication of gestures should be performed very cautiously. There were a number of implications for the long-standing problem of the relation between the understanding of science concepts and the performance of experiments.

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An Analysis for the Educational Training Program of Seoul Fire Academy through AHP (AHP를 이용한 서울특별시소방학교 교육훈련프로그램 분석)

  • Kim, Jin Keun;Park, Chan Seok
    • Journal of the Korea Safety Management & Science
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    • v.16 no.3
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    • pp.121-132
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    • 2014
  • In recent years, the surroundings of Fire have rapidly changed and citizens need for Fire have been demanding very high. Under these situations, in order for satisfaction to all these demands, Seoul Metropolitan Government Fire Academy(SFA) have only to improve its educational training program as the fire educational training center in Korea. The purpose of this study is to scrutinize current educational training program of SFA and measure the relative weight among the hierarchy of disaster management(prevention and mitigation-preparedness-response-recovery) by using the Analytic Hierarchy Process(AHP). The result of this study presents that how many hours must be allocated and set the educational training program with scientific and systematic way of AHP compared the current program of SFA in 2013. And This study is applied to increase access and comprehension about the AHP and will be able to present guideline for the selection of optimal the educational training of SFA to serve Seoul citizens the best Fire services.

Vibration Analysis of a Nanosatellite for Microgravity Science Missions (마이크로중력 과학 임무 수행용 초소형 위성의 진동 해석)

  • Kim, Jin-Hyuk;Jang, Jung-Ik;Park, Seul-Hyun
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.18 no.12
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    • pp.104-110
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    • 2019
  • A nanosatellite designed by the Korea Microgravity Science Laboratory (KMSL) is currently under development. The KMSL nanosatellite is designed to perform two different scientific missions in space. To successfully complete missions, a variety of tests must be conducted to verify the performance of the designed satellite before launch. As part of the qualification test campaign, the KMSL nanosatellite underwent high level vibrational tests (to comply with Falcon 9 qualification level) to demonstrate the integrity of the system. The purpose of this study is to demonstrate that the primary structure and all electronic and mechanical components can withstand the vibrations and the loads experienced during the launch period. To this end, the KMSL nanosatellite was exposed to static and dynamic loads and various types of vibrations that are inevitably produced during the space vehicle launch period. The vibration test results clearly demonstrated that all avionics and mechanical components can withstand the vibrations and the loads applied to the KMSL nanosatellite's body through a Pico-satellite Orbital Deployer (POD).

Trends in Child Sexual Abuse Literature -Articles Published from 2000 to 2008- (아동성학대 연구 경향 -2000~2008에 발표된 국내외 주요 학술지 논문을 중심으로-)

  • Yoon, Hye-Mee
    • Journal of the Korean Society of Child Welfare
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    • no.32
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    • pp.129-160
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    • 2010
  • This paper provides a review of research in the area of child(hood) sexual abuse. Particularly, the paper focuses on understanding the direction of research trends in Korea on this topic by evaluating the methodological changes, diversity of topics, and factors associated with research participants. The systemic, comprehensive review includes 28 articles in 14 primary Korean Journals and 261 articles in "Child Abuse and Neglect" and "Child Maltreatment" published from 2000 to 2008. Foci of the reviewing process were; (1) Do the transition of research methods follow scientific saturation? (2) What are the main subject areas of the field? (3)Who are the research participants and from where were they recruited? The review finds that overall, the number of CSA studies fluctuated in early 2000, but remained stable which means that academic interests have remained along with the social concern. The Korean CSA studies are imbalanced in terms of scientific saturation. Studies with theoretical methods are short in numbers, but there is a rapidly growing number of research using qualitative approaches. The review also highlights that most quantitative research utilized cross-sectional survey methodology. The major research themes that were most frequently found were studies on factors associated with CSA and evaluation of treatment modalities. However, research on perpetrators and measurement scale development were rather rare. In the CA&N and CM articles, study participants are frequently recruited from mental health clinics or related social agencies. Korean samples usually come from schools than communities and young children and their mothers seem to be excessively represented. Balanced research efforts are strongly suggested.

Exploring the Possibilities of Character Education in Various Interaction-based Mentor Program: Focusing on "Becoming a Science Teacher" Activity (다양한 상호작용 기반의 멘토멘티 프로그램에서 나타난 인성 교육 가능성 탐색 -"과학 선생님 되어보기" 활동을 중심으로-)

  • Kim, Sunhee;Shin, Donghee
    • Journal of The Korean Association For Science Education
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    • v.39 no.1
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    • pp.13-33
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    • 2019
  • The purpose of this study is to clarify the possibility of the character education and the concrete implementation process in the field of science education in accordance with the social demand for character education. Based on this purpose, the researchers tried to understand the specific character elements appearing in various science learning situations and to understand the qualities of each specific character elements that can be emphasized through science learning and the aspect of expression process in related learning situations. The researchers selected 11 students from the 7th and 8th graders in Seoul and developed and applied the 'Become a Science Teacher' mentor program in 2014 and 2015. Data collection was conducted through class recordings, mentor teachers' and assistant teacher's journal, artifacts, student journals, student portfolios, class listeners' essays for science class and analyzed qualitative data collected through constant comparison method. According to the result, we extracted 11 character elements and reorganized them into 16 specific character elements revealed in various learning situations based on the relationship between each character elements. The results of the study are eight specific character elements that can be emphasized through science learning and related learning situations. The eight specific character elements are 'responsibility for teaching behavior due to hierarchy of scientific knowledge structure, communication for forming scientific concept, empathic concern based on science learning experience, cooperation for promoting rationality of inquiry method, positive perception of scientific endeavor, respect for scientists' attitudes toward research, confidence in future scientific research, persistence in trial and error'. Based on the results of this study, we proposed the research methods of character in the field of science education in the future.

Priority Setting for Occupational Cancer Prevention

  • Peters, Cheryl E.;Palmer, Alison L.;Telfer, Joanne;Ge, Calvin B.;Hall, Amy L.;Davies, Hugh W.;Pahwa, Manisha;Demers, Paul A.
    • Safety and Health at Work
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    • v.9 no.2
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    • pp.133-139
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    • 2018
  • Background: Selecting priority occupational carcinogens is important for cancer prevention efforts; however, standardized selection methods are not available. The objective of this paper was to describe the methods used by CAREX Canada in 2015 to establish priorities for preventing occupational cancer, with a focus on exposure estimation and descriptive profiles. Methods: Four criteria were used in an expert assessment process to guide carcinogen prioritization: (1) the likelihood of presence and/or use in Canadian workplaces; (2) toxicity of the substance (strength of evidence for carcinogenicity and other health effects); (3) feasibility of producing a carcinogen profile and/or an occupational estimate; and (4) special interest from the public/scientific community. Carcinogens were ranked as high, medium or low priority based on specific conditions regarding these criteria, and stakeholder input was incorporated. Priorities were set separately for the creation of new carcinogen profiles and for new occupational exposure estimates. Results: Overall, 246 agents were reviewed for inclusion in the occupational priorities list. For carcinogen profile generation, 103 were prioritized (11 high, 33 medium, and 59 low priority), and 36 carcinogens were deemed priorities for occupational exposure estimation (13 high, 17 medium, and 6 low priority). Conclusion: Prioritizing and ranking occupational carcinogens is required for a variety of purposes, including research, resource allocation at different jurisdictional levels, calculations of occupational cancer burden, and planning of CAREX-type projects in different countries. This paper outlines how this process was achieved in Canada; this may provide a model for other countries and jurisdictions as a part of occupational cancer prevention efforts.