• Title/Summary/Keyword: Qualitative Method

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Part Similarity Assessment Method Based on Hierarchical Feature Decomposition: Part 2 - Using Negative Feature Decomposition (계층적 특징형상 정보에 기반한 부품 유사성 평가 방법: Part 2 - 절삭가공 특징형상 분할방식 이용)

  • 김용세;강병구;정용희
    • Korean Journal of Computational Design and Engineering
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    • v.9 no.1
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    • pp.51-61
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    • 2004
  • Mechanical parts are often grouped into part families based on the similarity of their shapes, to support efficient manufacturing process planning and design modification. The 2-part sequence papers present similarity assessment techniques to support part family classification for machined parts. These exploit the multiple feature decompositions obtained by the feature recognition method using convex decomposition. Convex decomposition provides a hierarchical volumetric representation of a part, organized in an outside-in hierarchy. It provides local accessibility directions, which supports abstract and qualitative similarity assessment. It is converted to a Form Feature Decomposition (FFD), which represents a part using form features intrinsic to the shape of the part. This supports abstract and qualitative similarity assessment using positive feature volumes.. FFD is converted to Negative Feature Decomposition (NFD), which represents a part as a base component and negative machining features. This supports a detailed, quantitative similarity assessment technique that measures the similarity between machined parts and associated machining processes implied by two parts' NFDs. Features of the NFD are organized into branch groups to capture the NFD hierarchy and feature interrelations. Branch groups of two parts' NFDs are matched to obtain pairs, and then features within each pair of branch groups are compared, exploiting feature type, size, machining direction, and other information relevant to machining processes. This paper, the second one of the two companion papers, describes the similarity assessment method using NFD.

Developing a University-Community Partnership Model Integrating Research and Intervention to Improve Food Decisions in Families and Communities

  • Gillespie, Ardyth H.
    • Korean Journal of Community Nutrition
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    • v.3 no.1
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    • pp.120-132
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    • 1998
  • A major goal of the Community Plant Food Project is to develop partnerships between the Cornell Community Nutrition Program and Community-based organizations, including Cooperative Extension. A core principle behind this work is integrating research and intervention. Based on our work in Rochester, New York, we have developed a process and principles for effective partnerships. This new paradigm what we call the University-Community Partnership Model is a team effort that builds on the experiential literature in the fields of communication, leadership, community and team development, sociology, and participatory research and action. We have applied this model both to increase our understanding of Family Food Decision-making and to develop programs for families. In this project, we have used a variety of qualitative methods to understand food decisions from the perspectives of families and community stakeholders, including a group method for analyzing our qualitative interview data. For our survey of families, we developed the Enhanced Response Method, an approach for improving the validity and reliability of community surveys with families and, at the same time, building relationships with families and other stakeholders in the community for integrated and sustainable interventions. Because the knowledge we develop through the partnership and the interventions we seek to implement are products of the process, we are constantly seeking to refine this knowledge and to adapt emerging interventions through an ongoing evaluation process we call the Continuous Improvement Method.

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Pharmacological Screening of Dikamali Resin Extract

  • Sridhar, S.K.;Ramachandran, S.;Anbalagan, N.;Leonard, J. Thomas;Joanofarc, J.;Kumar, S. Sadish
    • Natural Product Sciences
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    • v.9 no.1
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    • pp.10-12
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    • 2003
  • In the present study, dikamali resin (obtained from the leaf buds and the young shoots of Gardenia gummifera Linn.) was extracted with diethyl ether and the extract was vacuum dried. Qualitative tests confirmed the presence of flavonoids and free phenolic compounds in the extract. The antioxidant property (qualitative) of the extract was performed by TLC method $({\beta}-carotene-linoleate method)$. The $LD_{50}$ of the extract was found to be 2227 mg/kg by Karber's arithmetic method. The extract was screened for analgesic, anti-inflammatory, antipyretic (100, 200 and 400 mg/kg) and anthelmintic (0.1,0.2 and 0.5%w/v) activities by standard methods. The extract exhibited antioxidant property and prevented oxidation of ${\beta}-carotene$. The extract exhibited significant graded dose response for analgesic, anti-inflammatory, antipyretic and anthelmintic activities. The extract caused the death of earthworms in all experimental concentration whereas the standard drug (piperazine) only effected paralysis. The present study proved the claims of dikamali resin mentioned in the Indian system of medicine.

The Analysis of the Effects of Hanliu Phenomenon on the Chinese Young Generation′s Fashion Style (한류(韓流) 현상에 중국 신세대 패션에 미친 영향 분석)

  • 김재은;박길순
    • Journal of the Korean Society of Clothing and Textiles
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    • v.28 no.1
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    • pp.154-164
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    • 2004
  • The purpose of this theses is to review Hanliu phenomenon, a kind of social and cultural phenomenon, in China around A. D. 2000 in the view of the culture-diffusion theory, and analyze its effect to the fashion style of the new young generation of China. In this theses, Hanliu phenomenon means the enthusiasm of Asian people for Korean mass cultures such as Korean dramas, pop songs and fashions from late 1990's. This research adopts two kinds of methods for analyzing Hanliu phenomenon: a qualitative research method and a quantitative one. As a qualitative research method, we analyzed Hanliu phenomenon with several sources of documentaries and audio-visual materials on it. As a quantitative research method, we conducted a survey of about 100 university students in Beijing for how they feel of korean culture and fashions. The Hanliu phenomenon leads to the popularity of Korean products and the general Korean cultures. Also, it affected the Chinese young generation so much that the Korean fashion becomes popular among them. Its effects to the fashion styles of Chinese youths can be summarized in three factors as follows. Firstly, the fashions of Korean entertainers such as H.O.T hair style and Hip-hop fashion style are widely imitated. Secondly, the preference of Korean fashion products has been widely increased. The number of stores dealing with Korean fashion products has been increased. Finally, Korean culture and products have actively been imitated in China according to the increased popularity of Korean fashion products.

A Model of Factors Affecting Entrepreneurial Intention among Information Technology Students in Vietnam

  • VUONG, Bui Nhat;PHUONG, Nguyen Ngoc Duy;HUAN, Dao Duy;QUAN, Tran Nhu
    • The Journal of Asian Finance, Economics and Business
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    • v.7 no.8
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    • pp.461-472
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    • 2020
  • In recent decades, the research field of entrepreneurship phenomenon has significantly increased in both quantity and sophistication. In Vietnam, paradoxically, while creating a new business venture has become a tendency, the interest in studying entrepreneurs seems not to be thoroughly investigated. This research aims to evaluate the factors that affect the entrepreneurial intention of information technology (IT) students in Vietnam. The authors make use of mixed methods including both quantitative research method and qualitative research method. The qualitative research method is employed to identify meanings, confirmations, adjustments, and compliments for concept-measurement variables in the conceptual model. Quantitative research is conducted from a sample of 424 IT senior students across many universities in Vietnam. Questionnaires have been sent to students to evaluate the measurement scale and appropriateness of the research model. Results from multiple regression highlighted five independent variables affecting the dependent variable, the entrepreneurial intention, in a descending order as following: entrepreneurial educational environment, personal characteristics, perception of feasibility, entrepreneurial supports, and financial accessibility. In addition, this research has proved that the variable attitudes towards entrepreneurship partially mediated among the interrelationship of the aforementioned variables. From this research, the authors make some recommendations to enhance entrepreneurial intentions of IT students in Vietnam.

Production Rules Based on the Rule-Based Model for Grinding Trouble-shooting (연삭가공 트러블슈팅을 위한 룰베이스 룰의 구성)

  • Lee, Jae-Kyung;Kim, Gun-Hoi;Song, Ji-Bok
    • Journal of the Korean Society for Precision Engineering
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    • v.17 no.8
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    • pp.106-112
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    • 2000
  • Cognition and control of grinding trouble occurring during the grinding process are classified into a quantitative knowledge which depends on experimental data and qualitative knowledge which relies on skiful engineers. grinding operations include a large number of functional parameters since there are several ways of coping with ginding trouble. One is the qualitative method which depends on empirical knowledge utilizing the skilful experts from the workshop the other is the quantitative method which utilizes the experimental data obtained by sensor. But they are all difficult to accomplish from the grinding trouble-shooting system The reason is that grinding troubles are not accomplish from the grinding trouble-shooting system,. The rason is that grinding troubles are not easily controlled in the quantitative method and therefore trouble-shooting has mainly relied on the knoledge of skiful engineers. Thus there is an important issue of how a grinding touble-shooting system can be designed and what knowledge is utilized among the large amount of grinding trouble information. In this paper basic strategy to develop the grinding database by taking rule-based model which is strongly depended upon experience and intuition is described.

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On the Use of the Linguistic Fuzzy Approaches in the Selection of Liquid Levelmeters for Nuclear Energy Facilities (원자력설비용 수위측정기 선정시 언어 모호집합론적 접근법 사용)

  • Ghyym, Seong-Ho
    • Proceedings of the Korea Society for Energy Engineering kosee Conference
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    • 1999.11a
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    • pp.119-124
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    • 1999
  • A selection methodology of liquid levelmeters, especially, level sensors in non-nuclear category, to be installed in nuclear energy facilities is developed using linguistic fuzzy approaches such as fully-linguistic and semi-linguistic methods. Depending on defuzzification techniques, the linguistic fuzzy methodology leads to either linguistic (exactly, fully-linguistic) or cardinal (i.e., semi-linguistic) evaluation. For the linguistic method, for each alternative, fuzzy preference index is converted to linguistic utility value by means of a similarity measure determining the degree of similarity between fuzzy index and linguistic ratings. For the cardinal method, the index is translated to cardinal overall utility value. According to these values, alternatives of interest are linguistically or numerically evaluated and a suitable alternative can be selected. Under given selection criteria, the suitable selections out of some liquid levelmeters for nuclear facilities are dealt with using the linguistic fuzzy methodology proposed. Then, linguistic fuzzy evaluation results are compared with qualitative result available in the literature. It is found that as to a suitable option the linguistic fuzzy selection is in agreement with the qualitative selection. Additionally, the comparative study shows that the fully-linguistic method using adequate scale system facilitates linguistic interpretation regarding evaluation results.

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Exposure to Workplace Violence and Coping in Nurses (간호사의 직장 내 폭력상황 대처경험)

  • Kim, HyunSu;Yun, HeeJang;Kwak, EunMi
    • The Journal of the Convergence on Culture Technology
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    • v.4 no.4
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    • pp.233-240
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    • 2018
  • The purpose of this study is to clarify the essence and meaning of coping strategies of nurses by deeply understanding the violence situations coped by nurses from the viewpoint of nurses. Fourteen nurses who understood and agreed on the meaning and purpose of the study participated in the study. There were 7 female and 7 male genders. The analysis of this study was carried out by the phenomenological method of qualitative research method. The results of this study revealed that there are five categories. The results of this study can be used as basic data to prevent the violence situation by improving the environment of the nurse who is exposed to the violent situation by providing coping methods to the nurses experiencing the violent situation.

Assessment Factors for Seismic Performance of Multi-block Stone Pagodas (적층 석탑의 내진성능 평가요소)

  • Kim, Namhee;Koo, In Yeong;Hong, Sung-Gul
    • Journal of the Earthquake Engineering Society of Korea
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    • v.23 no.1
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    • pp.19-29
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    • 2019
  • Recent earthquakes in Korea caused some damages to stone pagodas and thereby awakened the importance of earthquake preparedness. Korean stone pagodas which have been built with very creative style of material use and construction method are worthy of world heritage. Each stone pagoda consists of three parts: top; body; and base. However each tower is uniquely defined by its own features, which makes it more difficult to generalize the seismic assessment method for stone pagodas. This study has focused on qualitative preliminary evaluation of stone pagodas that enables us to compare the relative seismic performance across major aspects among many various Korean pagodas. Specifically an analytical model for multi-block stone pagodas is to be proposed upon the investigation of structural characteristics of stone pagoda and their dynamic behavior. A strategy for seismic evaluation of heritage stone pagodas is to be established and major evaluation factors appropriate for the qualitative evaluation are identified. The evaluation factors for overall seismic resisting behavior of stone pagodas are selected based on the dynamic motions of a rigid block and its limit state. Numerical simulation analysis using discrete element method is performed to analyze the sensitivity of each factor to earthquake and discuss some effects on seismic performance.

Discretization Method for Continuous Data using Wasserstein Distance (Wasserstein 거리를 이용한 연속형 변수 이산화 기법)

  • Ha, Sang-won;Kim, Han-joon
    • Database Research
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    • v.34 no.3
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    • pp.159-169
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    • 2018
  • Discretization of continuous variables intended to improve the performance of various algorithms such as data mining by transforming quantitative variables into qualitative variables. If we use appropriate discretization techniques for data, we can expect not only better performance of classification algorithms, but also accurate and concise interpretation of results and speed improvements. Various discretization techniques have been studied up to now, and however there is still demand of research on discretization studies. In this paper, we propose a new discretization technique to set the cut-point using Wasserstein distance with considering the distribution of continuous variable values with classes of data. We show the superiority of the proposed method through the performance comparison between the proposed method and the existing proven methods.