• 한국지능시스템학회:학술대회논문집
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• 한국퍼지및지능시스템학회 2004년도 추계학술대회 학술발표 논문집 제14권 제2호
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• pp.515-520
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• 2004

In this paper, a passive telemetry RF capacitive humidity sensor system using a RLSE(Recursive Least Square Estimation) technique is proposed. To overcome these trouble problems such as a power limitation and a estimation complexity that the general passive telemetry sensor system including It chip has, the principle of inductive coupling was applied to the modeling of a passive telemetry RF capacitive humidity sensor system and its capacitance was estimatedd by the RLSE algorithm. Specially, by introducing the optimal forgetting factor, we showed that the accuracy of its estimation was improved even in the time varying system and also the convergence time was reduced.

• 산업경영시스템학회지
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• 제22권50호
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• pp.1-9
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• 1999

The purpose of this study is to establish a basis for assessing construct validity of measures used in organizational research. The classic Campbell and Fiske's(1959) criteria are found to be lacking in their assumptions, diagnostic information, and power. The inherent confounding of measurement error with systematic trait and method effects is a severe limitation for a proper interpretation of convergent and discriminant validity. The confirmatory factor analysis(CFA) approach overcomes most of the limitations found in Campbell and Fiske's(1959) method. However, the CFA approach confounds random error with unique variance specific to a measure. The second-order confirmatory factor analysis(SOCFA) was shown to harbor rather restrictive assumptions and is unlikely to be met in practice. The first-order, multiple-informant, multiple-item(FOMIMI) model is a viable option, but it may also be of limited use because of the large number measures.

• 한국공간구조학회논문집
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• 제17권1호
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• pp.41-47
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• 2017

Structures of steel frame buildings getting vary depending on the development of construction technology. Fire-resistant steel beams and Columns accredited by accreditation bodies from the performance of various fire-resistant coating is applied to the current pillar method is most H-beams. H-beam has been proposed a non-load test specifications in the relevant regulations, its scope of accreditation to be granted without limitation of size H-beams from the performance of the test specification. However, in the case of the rectangular steel structure is to check its performance and to a separate one of the receive acknowledge and so take advantage of the cross-sectional shape factor in this study to test the performance of the fire-resistant structure proposed for standard test specimen.

• 한국측량학회지
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• 제19권1호
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• pp.27-37
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• 2001

강우나 물의 유출에 의한 토양침식은 농업 생산성을 떨어뜨리고 목초지를 손상시키며, 물의 흐름을 방해하는 등의 각종 환경적인 문제를 야기시키고 있다. 환경에 대한 관심이 고조되는 시점에서 토양침식이 매우 중요한 위치를 차지하고 있지만 아직은 체계적인 자료의 정리와 분석이 이루어지지 못하고 있는 실정이다. 본 연구는 최근 부각되고 있는 GSIS를 활용하여 토양침식을 예측하는 모형에 입력되는 인자를 추출하는 기법을 제시하는 것으로 침식모형에는 ANSWER, WEPP RUSLE 등 여러 가지가 있으나 본 연구에서는 GSIS 자료와의 연계가 용이하면서 유역에 대한 일반적인 토양침식을 예측할 수 있는 RUSLE 침식모형을 사용하였다. RUSLE 입력인자에는 강우침식인자 R, 토양침식인자 K, 침식사면의 길이인자 L, 침식사면의 경사인자 S, 식생피복인자 C 그리고 경작인자 P로 구성되어 있다. RUSLE 입력인자 중 L과 S인자 추출에 사용되었던 기존의 식은 대부분 농업지역에 적용된 식으로 유역에 적용시 한계가 있기 때문에 본 연구에서는 GSIS 자료를 통해 격자별로 유역에 적용 가능한 수정된 경험식을 활용하였다. 또한 격자형 RUSLE인자를 유역추출 알고리즘을 이용하여 유역별로 분석함으로서 유역별 RUSLE인자의 최소값, 최대값, 평균 그리고 표준편차를 계산할 수 있었다.

• 한국조리학회지
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• 제11권1호
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• pp.119-134
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• 2005

This thesis studied the factor of participation motives and the degree of satisfaction of the participants in culinary skill competitions and their effectiveness. In addition, this thesis has an aim to offer profitable materials on the basis of demonstrative analysis emphasizing the study on how many factors of satisfaction should be motivated by participation effect. This thesis restricted cookers within those who had participated in a cooking contest so that it could possibly measure the motive of participation and satisfaction. This thesis investigated 115 cookers by questionnaires, of which 102 available materials were used for statistical processing to perform this study. As for the periodical interval, this thesis was performed from Feb 14, 2005 to Feb 21, 2005. First, from the motive of participation, 13 variables are analyzed into 3 factors such as the factor of social recognition, the factor of speciality, and the factor of self-development & self- realization. The factor of speciality, and the factor of self-development & self-realization. The factor as a motive of participating in skill competition affects effectiveness meaningfully. Second, total three factors were extracted from the degree of satisfaction which consisted of 13 variables. They included the psychological satisfaction and satisfaction with the judges in competitions. One limitation of this study is that the population of the survey was limited to those who had participated in a contest. Thus, the findings of this study may not be generalizable for other cases. It is clear that further research is needed to collect more in-dept data from other similar competitions as a effort to extend its application to other studies.

• 경영과정보연구
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• 제7권
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• pp.141-168
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• 2001

The causes that the transparency of Korean accounting information was rated low, a short supply of faithful and transparent accounting information from the limitation of external audit environment must be pointed out. Purpose of the external audit is a expression of the auditors about that financial statements an enterprise made public were appropriately drew up in accordance with the corporate accounting principles from important point of view. Analysis of the audit opinion and so fourth according to 6,541 individual audit reports and introduced to the bill securities forward committee as a subject of external audit according to the raw of corporation external audit show that considerable change to the contents of audit report. This show as it is that uncertainty of future that is now being faced by our enterprise, because corporation which present audit reports since 1997 because of enterprise dishonor and contents of existence probability as a continued enterprise following to general economic crisis after 1998 occupy important position in special matters of audit report. Also, increase in special matters is due to application of the corporate accounting principles revised on December 11, 1998. In 1999, audit opinion under limitation(limitation, incongruity and rejecting opinion) increased greatly according to existence doubt as a continued enterprise, and this is the consequence of strengthening audit to the continues enterprise because of limited enterprise dishonor according to the stagnancy of business activities after 1997. Now financial supervisory service put in effect electromagnetic public announcement system about a project report of listed corporation (including an audit report) keeping pace with a documentary public announcement system as first phase since 1999 and expand to the unlisted corporation from 2000. As electromagnetic public announcement of public announcement documents including audit documents of external audit subject get a duty, approach of external user to the accounting information will be easier. Fixation of this system will make deep and wide analysis to the audit opinion, and this will draw up a plan to reconsider confidence of accounting information.

• 대한간호학회지
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• 제36권7호
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• pp.1215-1223
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• 2006

Purpose: This study was done to understand elderly women within a community who have used lots of drugs. Method: Data was collected through in-depth interviews with four elderly women from April 2001 to February 2002. Data was analyzed by Giorgi's phenomenological method(2000). Results: The components in common with drug usage of elderly women were as follows: 'Awareness of the limitation of physical strength and uncertainty of life', 'Dread of a crisis situation occurring', 'Attachment and dependency on drugs', 'Expectation of a comfortable life and death', 'Prevention of family burden', and 'Pursuit of psychological comfort'. The general structure of experiences was as follows: causal factors were 'Awareness of uncertainty and limitation', 'dread of a crisis situation occurring' the results factor was 'Attachment and dependency on drugs' and the facilitating factors were 'Expectation of a comfortable life and death', 'Prevention of family burden', and 'Pursuit of psychological comfort'. The causal relation was cyclic. This structure showed a realistic adaptation pattern. Conclusion: This study contributed to provide fundamental data for nursing interventions for health promotion and promoting quality of life in elderly women by increasing understanding of the experiences of drugs use.

• 한국국방경영분석학회지
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• 제36권2호
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• pp.11-24
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• 2010

네트워크 중심전(NCW) 및 효과중심작전(EBO)으로 대표되는 현대 및 미래전에서 포병의 신속하고 정확한 정밀타격능력은 전쟁 승패의 중요한 요인으로 작용될 것이다. 본 연구는 대화력전 및 화력지원간 실제 운용되는 환경 중 갱도포병과 같이 타격제한시간이 있는 포병 표적처리에 관한 연구로 여러 가지 제한사항들을 모형 화하여 표적할당 및 사격순서를 동시에 결정하는 문제이다. 본 연구에서는 시간제약이 있는 포병 표적처리문제에서 사격 제한시간을 만족하면서, 총 사격시간을 최소화하는 수리모형과 유전자 알고리즘을 제시하였다. 소형 문제를 이용한 축소실험으로 본 연구에서 제안하는 수리모형과 유전자 알고리즘의 타당성을 입증하였으며, 대형 문제를 이용한 확대실험에서 유전자 알고리즘으로 근사 최적해를 산출하였다.

• Archives of Pharmacal Research
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• 제29권3호
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• pp.249-255
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• 2006

Ability of iron acquisition of pathogenic microorganisms functions as a virulence factor. Candida albicans, a fungal pathogen that requires iron for growth, is susceptible to growth retardation by high-affinity iron binding proteins such as transferrin. Recently, we reported that C. albicans could utilize the heme as a part of heme-containing proteins dissociated by heme oxygenase, CaHMX1. In search of another pathway that C. albicans can use to bypass the growth regulation produced by iron limitation, this present study examined utilization of non-candidal siderophores such as Desferal and rhodotorulic acid (RA) for acquisition of inorganic iron by the fungus. C. albicans secreting no siderophores was cultured in iron-free (pretreated with apotransferrin for 24 h) (culture medium). Once growth of the yeast reached stasis from iron starvation, a siderophore was added to the culture media. Results showed that cultures containing apotransferrin within a dialysis membrane recovered growth to the level of untreated controls, whereas C. albicans yeast cells in direct contact with soluble iron-free (apo) transferrin recovered growth only partially. When static growth from iron limitation was reached, the addition of siderophore-apotransferrin complex to culture medium also permitted the yeast to recover growth from apotransferrin growth regulation. All the data show that C. albicans can utilize the non-candidal siderophores for iron acquisition under transferrin regulation as can pathogenic bacteria.

• 한국초전도ㆍ저온공학회논문지
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• 제19권2호
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• pp.29-32
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• 2017

The use of electronic devices such as mobile phones and tablet PCs has increased of late. However, the power which is supplied through wires has a limitation of the free use of devices and portability. Magnetic-resonance wireless power transfer (WPT) can achieve increased transfer distance and efficiency compared to the existing electromagnetic inductive coupling. A superconducting coil can be applied to increase the efficiency and distance of magnetic-resonance WPT. As superconducting coils have lower resistance than copper coils, they can increase the quality factor (Q-factor) and can overcome the limitations of magnetic-resonance WPT. In this study, copper coils were made from ordinary copper under the same condition as the superconducting coils for a comparison experiment. Superconducting coils use liquid nitrogen to keep the critical temperature. As there is a difference of medium between liquid nitrogen and air, liquid nitrogen was also used in the normal conductor coil to compare the experiment with under the same condition. It was confirmed that superconducting coils have a lower reflection-coefficient($S_{11}$) than the normal conductor coils.