• 과학기술정책
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• 제16권1호통권157호
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• pp.64-71
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• 2006

Fabrication, falsification, plagiarism (so-called FFP), and other unethical acts damage the trust of public in science and scientists. Scientific communities, governments and research institutions should take the appropriate countermeasures. With the increasing visibility and importance of problem, funding agencies and policy-makers find that they must have a better understanding of this phenomenon, and take steps to prevent it. Science is often said as a borderless activity. In these days, many scientific misconduct cases have been emerging almost simultaneously and worldwide. Thus, the immediate actions should be taken internationally as well as nationally. From these points of view, we, Japan, proposed a new international joint-study at OECD Global Science Forum in February 2006, and the proposal was approved with supports by many countries including Korea. OECD would seek an international perspective to address this worldwide problem, bringing together the representatives of science communities, publishers, funding agencies, and policy makers, and exchanging their experiences.

• 대한가정학회지
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• 제36권12호
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• pp.145-160
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• 1998

The purpose of the study were two fokls: to investigate causes of wife abuse through both husbands and wives as the research subject and through ecological perspective as a theoretical framework. Data were collected using self-reporting questionnaires distributed to 400 couples in Seoul and Taegu. 280 questionnaires were used in the final analysis. The major findings of the study were summarized in the following. First, the percentage of samples who reported one or more instances of acts in each scale was 84.3%(236 couples). They reported having been a vicitm of abuse by their partners at least one instance in the preceding 12 months. Secondly, the hierarchical and stepwise regression yielded the result that wife abuse behavior by husbands was influenced by husband's microsytem(e.g.job stress, marital satisfaction, education level and occupation) and organism variables(e.g. husband's perceptions about the violence level of mass media, childhood observation of parental violence, childhood experience of the battering). These variables accounted for 38% of variance of wife abuse behavior among Korean husbands.

• 한국전기전자재료학회논문지
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• 제16권12S호
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• pp.1210-1216
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• 2003

Recently, as the road capacity reaches the limit and environmental problems becomes serious, there is gradually increased a need for railroad vehicles that are environment-friendly and have time regularity, reliability, and safety. Accordingly, in addition to conventional railroad vehicles, lots of vehicles are being newly developed. We developed the hardware and software of the measurement system for on-line test and evaluation of korean high speed train. The software controls the hardware of the measurement system and acts as interface between users and the system hardware. In this paper, practical experiment are performed to verify mechanical performance of motor and main transformer for Korean high speed rail. The experimental test carried out by using new temperature measurement method and verify the temperature performance of motor and transformer is verified.

• 반도체디스플레이기술학회지
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• 제6권2호
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• pp.35-40
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• 2007

An integrated material removal model considering thermal, chemical and contact mechanical effects in CMP process is proposed. These effects are highly coupled together in the current modeling effort. The contact mechanics is employed in the model incorporated with the heat transfer and chemical reaction mechanisms. The mechanical abrasion actions happening due to the mechanical contacts between the wafer and abrasive particles in the slurry and between the wafer and pad asperities cause friction and consequently generate heats, which mainly acts as the heat source accelerating chemical reaction(s) between the wafer and slurry chemical(s). The proposed model may be a help in understanding multi-physical interactions in CMP process occurring among the wafer, pad and various consumables such as slurry.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1997년도 하계학술대회 논문집 A
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• pp.171-173
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• 1997

This paper presents analysis of the radial force density in brushless DC motor of which distribution is not uniform in the axial direction. The analysis considering 3D shape of teeth and overhang is not only important but essential to calculate the radial force density that acts on the teeth of stator, because it is frequent source of vibration and changes at the end of teeth. For the analysis, a new 3D equivalent magnetic circuit network method taking into account movement of the rotor without remesh is proposed. The radial force density is calculated by Maxwell stress tensor and analyzed by discrete Fourier transform.

• 영어어문교육
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• 제13권2호
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• pp.177-200
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• 2007

The language socialization approach states that novices are socialized into cultural norms through participating in routine, repeated interactional acts and sequences (e.g., Ochs & Schieffelin, 1984; Ochs, 1988; Schieffelin & Ochs, 1986a; 1986b; Watson-Gegeo & Gegeo, 1986). One of the cultural norms or dominant epistemological orientations in American culture is the tendency to avoid the overt display of power asymmetry in novice-expert relationship (Ochs & Schieffelin, 1984). This study examines how this cultural preference is reflected and encoded in ESL teachers' use of routine discourse patterns in corrective sequences. Eight hours of ESL classes taught by three Caucasian teachers born and educated in the U.S. were analyzed for the study. The analysis showed that the cultural tendency in question is keyed and indexed in the teacher's routine corrective discourse patterns in the form of various questioning, elicitation, and mitigation practices. Findings support that teachers' routine classroom discourse practices represent their cultural ideologies and transfer these cultural predispositions to second language learners and that they possibly socialize the learners into the target language-oriented beliefs.

• 대한화학회지
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• 제57권6호
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• pp.672-676
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• 2013

The corrosion inhibition nature of Ginger affinale extract for the corrosion of mild steel in 0.5N $H_2SO_4$ was investigated using weight loss, electrochemical impedance and potentiodynamic polarization methods. The results revealed that Ginger affinale extract acts as a good corrosion inhibitor in 0.5N $H_2SO_4$ medium. The inhibition efficiency increased with an increase in inhibitor concentration. The inhibition could be attributed to the adsorption of the inhibitor on the steel surface.

• 대한화학회지
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• 제18권1호
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• pp.8-11
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• 1974

물함량 50% 이하의 아세토니트릴-물 혼합용매내에서의 염화벤젠술포닐의 $p-H, p-NO_2, p-Br, p-OCH_3$, 치환체들의 가용매분해를 반응속도론적으로 연구한 결과 Hammett 도시는 concave한 곡선들이나 $S-N2$성격이 압도적이었으며 물은 친핵제 뿐만 아니라 general base로도 작용하고 있음을 알았다.

• 한국수정란이식학회지
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• 제24권4호
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• pp.237-247
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• 2009

Melatonin (N-acetyl-5-methoxytryptamine) is the major neurohormone secreted during the night by the vertebrate pineal gland. The circadian pattern of pineal melatonin secretion is related to the biological clock within the suprachiasmatic nucleus (SCN) of the hypothalamus in mammals. The SCN coordinates the body's rhythms to the environmental light-dark cycle in response to light perceived by the retina, which acts mainly on retinal ganglion cells that contain the photopigment melanopsin. Calbindin-D9k (CaBP-9k) is a member of the S100 family of intracellular calcium- binding proteins, and in this review, we discuss the involvement of melatonin and CaBP-9k with respect to calcium homeostasis and apoptotic cell death. In future studies, we hope to provide important information on the roles played by CaBP-9k in cell signal transduction, cell proliferation, and $Ca^{2+}$ homeostasis in vivo and in vitro.

• 한국수학교육학회지시리즈D:수학교육연구
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• 제14권4호
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• pp.333-345
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• 2010

This study focuses on student engagement in Chinese middle school mathematics classrooms. By the recording and quantitative analysis on video case, this study explored the main acts and time of student engagement. The data showed that among the student engagements: (1) Students' responses to teacher's question occurred most frequently; (2) Collective responses were much more than the individual responses; (3) Students' responses and classroom practice spent the longest time; (4) The most frequent student engagements occurred in the aspects of classroom practice; and (5) Students rarely asked a question to teachers. The study also suggested that teacher's effective guidance could improve the level of student engagement and the content of classroom practice is very important to the quality of student engagement.