• Title/Summary/Keyword: Knowledge Structure

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Estimation of Displacement Responses Using the Wavelet Decomposition Signal (웨이블릿 분해신호를 이용한 변위응답의 추정)

  • Jung, Beom-Seok;Kim, Nam-Sik;Kook, Seung-Kyu
    • Journal of the Korea Concrete Institute
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    • v.18 no.3 s.93
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    • pp.347-354
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    • 2006
  • In this paper we have attempted to bring the wavelet transform theory to the dynamic response conversion algorithm. This algorithm is proposed for the problem of estimating the displacement data by defining the transformed responses. In this algerian, the displacement response can be obtained from the measured acceleration records by integration without requiring the knowledge of the initial velocity and displacement information. The advantage of the wavelet transform over either a pure spectral or temporal decomposition of the signal is that the pertinent signals features can be characterized in the time-frequency plane. In the response conversion procedure using the wavelet decomposition signals, not only the static component can be extracted, but also the dynamic displacement component can be separated by the structural mode from the identified displacement response. The applicability of the technique is tested by an example problem using the real bridge's superstructure under several cases of moving load. If the reliability of the identified responses is ensured, it is expected that the proposed method for estimating the impact factor can be useful in the bridge's dynamic test. This method can be useful in those practical cases when the direct measurement of the displacement is difficult as in the dynamic studies of huge structure.

A Study on the Establishment of Economic Activity Participation for the Elderly through Work for the Elderly (노인 일자리사업을 통한 노인경제 활동 참여의 구축 방안 연구)

  • Jeong, Kyoung-Ja
    • Industry Promotion Research
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    • v.5 no.1
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    • pp.89-98
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    • 2020
  • This study is to find ways to build economic participation for the elderly through job projects to help the elderly live a pleasant life. The results of this study are as follows. First, the relevant laws must be overhauled. To this end, jobs targeting the elderly should be selected first, and legal procedures should be prepared in the government. Second, they should extend the retirement age and support senior employment businesses. The extension of the retirement age believes that a resumption of the wage structure is inevitable in order to increase employment for senior citizens. It is also desirable to implement policies such as giving tax benefits to companies that employ older people more than a certain percentage of them. Third, there should be self-help efforts by the elderly. Three factors are essential to keep the work of old age pleasant and faithful. In other words, it is important to always learn new knowledge and hone one's ability in order to do a rewarding job of living without health and some economic stability. In conclusion, measures to establish economic participation for the elderly through the work-seeker project will require, among other things, a sufficient extension of the retirement age to allow the elderly to engage in their jobs, while overhauling the system, including legal maintenance.

Study on Sensibility of Knit by Structural Design Patterns (편성조직에 따른 니트패턴의 패션감성 연구)

  • Ko, Soon-Young;Park, Myung-Ja
    • Journal of the Korea Fashion and Costume Design Association
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    • v.10 no.3
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    • pp.1-13
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    • 2008
  • The purpose of this research is to study the cause of obstruction in various knit pattern structures by understanding the needs of the customers, and to develop knitted fabric goods that satisfy the individual taste of consumers and that reflecting the latest fashions. Actual conditions of the manufacturer's designing processes must be examined. In addition, a comparison analysis of fashion sensibilities and preferences between producers and consumers had been made in order to study developing knit pattern structures. Questionnaires and interviews had been used as research methods. The research involved two groups: one group consisted of 57 producers, which included designers, programmers, and merchandisers working for a knit manufacturer in Seoul, while the other group consisted of 74 consumers, which included students with knitted fabric design as their major and those who have working knowledge of knitted fabrics. For a more accurate evaluation, 28 out of 150 patterns have been selected through a preliminary study conducted by 24 designers. On the 28 knit patterns, a sensibility evaluation had been made through the use of the sense of sight and sense of touch, which was followed by a frequency analysis, cluster analysis, and t-test using SPSS 12.0. The results are as follows: the fashion sensibility evaluation on knit patterns showed that structures, such as racking II or lace II, are typically elegant ('elegance'), while structures, such as links I or racking I, are typically 'active.' Furthermore, a 'country' image was displayed in structures such as cable I, cable II, and miss II. Links I appeared as 'sophisticated'. Miss I and milano were said to have 'modem' images. Lace II was regarded as 'ethnic', while racking II was said to have a 'romantic' image. 2:1 rib and milano were generally thought to be manly ('manish'). The fashion sensibility scale for each knit pattern has been made based on the above results. Based on producer and consumer responses, the sensibility evaluation on knit pattern structures showed that the two groups had similar preferences in knit pattern structures. Therefore, the fashion sensibility scale developed in this study can be used as a basic data for structure development when designing knitted fabric goods.

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Electrochemical Characteristics of Li3V2(PO4)3 Negative Electrode as a Function of Crystallinity (결정화도에 따른 Li3V2(PO4)3 음극의 전기화학적 특성)

  • Ku, Jun-Whan;Park, Kyung-Jin;Ryu, Ji-Heon;Oh, Seung-Mo
    • Journal of the Korean Electrochemical Society
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    • v.15 no.1
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    • pp.27-34
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    • 2012
  • $Li_3V_2(PO_4)_3$/carbon composite materials are synthesized from a sucrose-containing precursor. Amorphous $Li_3V_2(PO_4)_3/C$ (a-LVP/C) and crystalline $Li_3V_2(PO_4)_3/C$ (c-LVP/C) are obtained by calcining at $600^{\circ}C$ and $800^{\circ}C$, respectrively, and electrochemical performance as the negative electrode for lithium secondary batteries is compared for two samples. The a-LVP electrode shows much larger reversible capacity than c-LVP, which is ascribed to the spatial $Li^+$ channels and flexible structure of amorphous material. In addition, this electrode shows an excellent rate capability, which can be accounted for by the facilitated $Li^+$ diffusion through the defect sites. The sloping voltage profile is another advantageous feature for easy SOC (state of charge) estimation.

A Study on Empowerment Process of the Disabled - Focused on Experience of 'Pre-Adulthood' - (장애인의 임파워먼트 과정에 관한 연구 - 성인기 이전의 경험을 중심으로 -)

  • Kim, Mi-Ok;Kim, Hee-Sung;Lee, Min-Young
    • Korean Journal of Social Welfare
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    • v.57 no.1
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    • pp.31-60
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    • 2005
  • This study was performed to analyze empowerment process of the disabled. Participants were 11 disabled college students and they were individually face-to-face in-depth interviewed until data were saturated. This study used the grounded theory approach based on Strauss and Corbin(1998). With the qualitative constant comparative analysis, 105 concepts, 22 subcategories, and 12 categories were generated. In the axial coding, a paradigm model was proposed as follows: The central phenomenon of the empowerment process of the disabled adolescents was 'Rising from the Limits'. The causal conditions were 'Just living' and 'realizing disabilities'. The contextual conditions were 'Being excluded', 'But wishing', and 'Breaking down'. The intervening conditions were 'Without giving up' and 'Taking support'. The action/interaction strategies were 'Grasping own lifestyle' and 'Being proactive'. The consequences were 'Acquiring the self-control', 'Getting generosity', and 'Participating in society'. In the selective coding, the core category was 'to live together stately with grasping own lifestyle pro-actively as the disabled'. Based on the core category, three types and 4 stages of the empowerment process of the disabled adolescents were found. The types were 'Social change oriented type', 'Self-development oriented type', and 'Passive effort oriented type' and the stages took 'Isolation stage', 'Rising stage', 'Mastering stage' and 'Stately being together stage'. In particular, this process had the circulation structure of which these 4 stages are not terminated, and developed and repeated. In conclusion, these results convey to us the understanding and knowledge about empowerment process of the disabled as their healthy -whole and unique- development process. And some implications and suggestions for the social work services and theories about the disabled focusing on the pre-adulthood period.

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A Qualitative Study on the the Meaning of Community Participation among Sexual Minorities (성소수자의 커뮤니티 참여 의미에 대한 연구 - Giorgi 현상학적 방법론을 중심으로 -)

  • Son, So Yeon;Lee, Jie Ha
    • Korean Journal of Social Welfare
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    • v.68 no.2
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    • pp.233-256
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    • 2016
  • This study aims to illustrate the essence of meaning through sexual minorities' participant experiences in a sexual minority community. This research intends to explore essential meaning structure revealed in sexual minorities' reasons for joining a sexual minority community and in their experience in community activities. The study participants were 8 sexual minorities, and data was collected by in-depth interview. Data analysis was described using Giorgi's analysis methodology in phenomenological research method. As a result, the sexual minorities' participation was consisted of 13 meaning units, 6 derived topics, and 3 essential topics, which were 'An unquenchable thirst', 'Another world called oasis', and 'Real estrangement' Moreover, based on the essential topics, the study participants' common meaning of essence was analyzed as 'spiritual diaspora'. Sexual minority communities shall contribute to developments of own organizations through mutual compensations by vitalizing exchanges with other communities based on this study. Also, the communities should the variety in sexual minorities to allow various people's participation. People's awareness on sexual minorities must be transformed so that closed communities can change. Comprehensive knowledge on sexual minorities should be distributed in the social welfare fields so that sexual minorities may search solutions on issues through various access not limited to certain communities.

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Development of the Atomated Prediction System for Seasonal Tropical Cyclone Activity over the Western North Pacific and its Evaluation for Early Predictability (북서태평양 태풍 진로의 계절예측시스템 자동화 구축 및 조기 예측성의 검증)

  • Jin, Chun-Sil;Ho, Chang-Hoi;Park, Doo-Sun R.;Choi, Woosuk;Kim, Dasol;Lee, Jong-Ho;Chang, Ki-Ho;Kang, Ki-Ryong
    • Atmosphere
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    • v.24 no.1
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    • pp.123-130
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    • 2014
  • The automated prediction system for seasonal tropical cyclone (TC) activity is established at the National Typhoon Center of the Korea Meteorological Administration (KMA) to provide effective operation and control of the system for user who lacks knowledge of the system. For automation of the system, two procedures which include subjective decisions by user are performed in advance, and their output data are provided as input data. To provide the capability to understand the operational processes for operational user, the input and output data are summarized with each process, and the directory structure is reconstructed following KMA's standard. We introduce a user interface using namelist input parameters to effectively control operational conditions which is fixed or should be manually set in the previous version of the prediction system. To operationally use early prediction which become available through the automation, its performances are evaluated according to initial condition dates. As a result, high correlations between the observed and predicted TC counts are kept for all track clusters even though advancing the initial condition date from May to January.

Strengthening the Instruction-Assessment Alignment: Development of Items for Essay-Type Assessment Based on the Achievement Standards (수업과 평가 일체화를 위한 성취기준 중심 가정과 서술형 평가 문항개발 연구)

  • Yang, Ji Sun;Lee, Gyeong Suk
    • Journal of Korean Home Economics Education Association
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    • v.32 no.3
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    • pp.135-159
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    • 2020
  • The purpose of this study was to develop items of an essay response assessment that could align with the instructions and assessments in the high school home economics curriculum. The contents of the study were as follows. First, to establish an assessment plan, 14 achievement standards were analyzed in the assessment area, and the elements of the questions were developed including the content elements of a total of 29 questions. Second, to develop the assessment tools, preliminary questions suited to the structure of essay questions were developed, and the method of presenting data and scoring criteria to be utilized in the questions was selected. Third, to prepare the answers and the scoring criteria tables, the answers to the sample questions for each score were prepared in form of a scoring criteria table, and the objectives of the assessment, the scoring items, and the scores for each item were reviewed. Fourth, the developed questions and answers were revised and supplemented by teachers of the professional learning community through preliminary and mutual review on the components of the questions, the embodiment of the assessment objectives, the implementation of the assessment intent, and the grading. This study can be used as a foundational study for the development of essay-type questions and scoring criteria in essay assessment in the field of education. Furthermore, the results of this study could help teachers enhance their learners' ability to apply knowledge in the future.

In silico Design of Discontinuous Peptides Representative of B and T-cell Epitopes from HER2-ECD as Potential Novel Cancer Peptide Vaccines

  • Manijeh, Mahdavi;Mehrnaz, Keyhanfar;Violaine, Moreau;Hassan, Mohabatkar;Abbas, Jafarian;Mohammad, Rabbani
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.10
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    • pp.5973-5981
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    • 2013
  • At present, the most common cause of cancer-related death in women is breast cancer. In a large proportion of breast cancers, there is the overexpression of human epidermal growth factor receptor 2 (HER2). This receptor is a 185 KDa growth factor glycoprotein, also known as the first tumor-associated antigen for different types of breast cancers. Moreover, HER2 is an appropriate cell-surface specific antigen for passive immunotherapy, which relies on the repeated application of monoclonal antibodies that are transferred to the patient. However, vaccination is preferable because it would stimulate a patient's own immune system to actively respond to a disease. In the current study, several bioinformatics tools were used for designing synthetic peptide vaccines. PEPOP was used to predict peptides from HER2 ECD subdomain III in the form of discontinuous-continuous B-cell epitopes. Then, T-cell epitope prediction web servers MHCPred, SYFPEITHI, HLA peptide motif search, Propred, and SVMHC were used to identify class-I and II MHC peptides. In this way, PEPOP selected 12 discontinuous peptides from the 3D structure of the HER2 ECD subdomain III. Furthermore, T-cell epitope prediction analyses identified four peptides containing the segments 77 (384-391) and 99 (495-503) for both B and T-cell epitopes. This work is the only study to our knowledge focusing on design of in silico potential novel cancer peptide vaccines of the HER2 ECD subdomain III that contain epitopes for both B and T-cells. These findings based on bioinformatics analyses may be used in vaccine design and cancer therapy; saving time and minimizing the number of tests needed to select the best possible epitopes.

A Study on the Problems of the Doctrine of Utmost Good Faith in English Marine Insurance Law (영국(英國) 해상보험법(海上保險法)에서 최대선의원칙(最大善意原則)의 문제점(問題點)에 관한 고찰(考察))

  • Shin, Gun-Hoon
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
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    • v.14
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    • pp.103-152
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    • 2000
  • English contract law has traditionally taken the view that it is not the duty of the parties to a contract to give information voluntarily to each other. In English law, one of the principal distinctions between insurance contract law and general contract law is the existence of the doctrine of utmost good faith in insurance law. The doctrine gives rise to a variety of duties, some of which apply before formation of the contract while others apply post-formation. This article is, therefore, designed to analyse the overall structure and problems of the doctrine of utmost good faith in English marine insurance law. The results of analysis are as following : First, the requirement of utmost good faith in marine insurance law arises from the fact that many of the relevant circumstances are within the exclusive knowledge of the assured and it is impossible for the insurer to obtain the facts to make a appropriate calculation of the risk that he is asked to assume without this information. Secondly, the duty of utmost good faith provided in MIA 1906, s. 17 has the nature as a bilateral or reciprocal, overriding and absolute duty. Thirdly, the Court of Appeal in Skandia held that breach of the pre-formation duty of utmost good faith did not sound in damages since the duty did not arise out of an implied contractual term and the breach did not constitute a tort. Instead, the Court of Appeal held that the duty was an extra-contractual duty imposed by law in the form of a contingent condition precedent to the enforceability of the contract. Fourthly, the scope of the duty of utmost good faith is closely related to the test of materiality and the assured is required to disclose only material circumstances subject to MIA 1906, s. 18(1) and 20(1). The test of materiality, which had caused a great deal of debate in English courts over 30 years, was finally settled by the House of Lords in Pan Atlantic and the House of Lords rejected the 'decisive influence' test and the 'increased risk' test, and the decision of the House of Lords is thought to accept the 'mere influence' test in subsequent case by the Court of Appeal. Fifthly, the insurer is, in order to avoid contract, required to provide proof that he is induced to enter into the contract by reason of the non-disclosure or misrepresentation of the assured. Sixthly, the duty of utmost good faith is, in principle, terminated before contract is concluded, but it is undoubtful that the provision under MIA 1906, s. 17 is wide enough to include the post-formation duty. The post-formation duty is, however, based upon the terms of marine insurance contract, and the duty lies entirely outside s. 17. Finally, MIA 1906, s. 17 provides expressly for the remedy of avoidance of the contract for breach of the duty. This means rescission or retrospective avoidance of the entire contract, and the remedy is based upon a fairly crude 'all-or-nothing' approach. What is needed in English marine insurance law is to introduce a more sophiscated or proportionate remedy.

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