• Journal of applied mathematics & informatics
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• 제42권4호
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• pp.739-748
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• 2024

The intention of this paper is to acquaint domination, total domination on bipolar intuitionistic fuzzy graphs. Subsequently for bipolar intuitionistic fuzzy graphs the domination number and the total domination number are defined. Consequently we proved necessary and sufficient condition for a d-set to be minimal d-set, bounds for domination number and equality conditions for domination number and order.

• 융합정보논문지
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• 제10권12호
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• pp.91-99
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• 2020

본 연구의 목적은 정보보안 정책 인식, 정보보안 관여성, 준수 의도성이 정보보안 행동에 미치는 영향력을 분석하는 것이다. 연구 방법은 보상 차원과 공정성 차원의 교차설계로 구성되었고, 조직적인 차원의 정책이 개인의 의사결정 수준에서 발생하는 정보처리 단계를 통해 정보보안 준수의도로 나타나는 과정에 주안점을 두었다. 연구 결과, 보상 차원은 준수 의도성에 유의미한 영향을 미치고 있었으며, 심리적 조건의 영향력이 물질적 조건보다 더 큰 것으로 나타났다. 공정성 차원은 정보보안 정책 인식, 정보보안 관여성, 정보보안 행동에 유의미한 영향을 미치고 있었으며, 형평성 조건의 영향력이 동등성 조건보다 더 큰 것으로 나타났다. 결과적으로 도출한 결과 모형은 측정변인으로 재구성된 복합 매개모형으로 확인되었고, 개인과 조직의 문화적 환경에 의한 시너지 관점에서 필요한 연구 방향을 논의하였다.

• 대한가정학회지
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• 제51권1호
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• pp.1-16
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• 2013

The purpose of this study is to examine the relative influence of various characteristics that affect the happiness and family strength of pre-elderly and the elderly. This study also shows the differences between the two age groups. The National Survey of Korean Families has been done by the Ministry of Equality and Family on 2010. Respondents selected from national survey were 1016 pre-elderly and 629 elderly. The results of this study are as follows; first, 66% of the respondents chose health as the condition is being the important elements of their happiness following money, work (job), children, spouse and family life. Second, the group of people considering work and health as important elements of their happiness is happiest, but the group considering money and health as the important elements of their happiness feels a lower level of happiness. Third, the pre-elderly chose health as the most important condition, but the elderly chose subjective economic condition, among the factors affecting family strength. Fourth, family strength affects most on in regard to the happiness of pre-elderly and the elderly. Next, the more they are financially stable, physically healthier and living in rural areas, they feel the happier they feel. Based on the results of this study, further studies are needed to determine components of family strength that both pre-elderly and the elderly consider as important elements of their happiness. Support programs for the elderly without a spouse will increase the well-being of the elderly.

• Journal of Mechanical Science and Technology
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• 제16권8호
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• pp.1102-1108
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• 2002

In this study, a topological design sensitivity of the ai. bearing surface (ABS) is suggested by using an adjoint variable method. The discrete form of the generalized lubrication equation based on a control volume formulation is used as a compatible condition. A residual function of the slider is considered as an equality constraint function, which represents the slider in equilibrium. The slider thickness parameters at all grid cells are chosen as design variables since they are the topological parameters determining the ABS shape. Then, a complicated adjoint variable equation is formulated to directly handle the highly nonlinear and asymmetric coefficient matrix and vector in the discrete system equation of air-lubricated slider bearings. An alternating direction implicit (ADI) scheme is utilized for the numerical calculation. This is an efficient iterative solver to solve large-scale problem in special band storage. Then, a computer program is developed and applied to a slider model of a sophisticated shape. The simulation results of design sensitivity analysis (DSA) are directly compared with those of FDM at the randomly selected grid cells to show the effectiveness of the proposed approach. The overall distribution of DSA results are reported, clearly showing the region on the ABS where special attention should be given during the manufacturing process.

• 한국식품조리과학회지
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• 제10권4호
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• pp.315-321
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• 1994

The addition of green tea to kimchi making for extanding the optimum edible period was studied. The equality and sensory characteristics of green tea added kimchi were evaluated. The acidity, lactic acid and acetic acid contents of green tea added kimchi showed lower than that of control kimchi but reducing sugar and vitamin C contents was higher. The duration of optimum edible periods of green tea added kimchi lasted two more weeks. While the optimum pH of kimchi for eating lasted, the sensory pannel score for sour taste of green tea added kimchi was lower than that of control but the scores for overall quality and hardness were higher. Especially, the sour taste score between two groups were significantly different(p<0.05). There was no differences in texture determined by Penetrometer between green tea added kimchi and control kimchi until the fermentation reached the optimal condition for eating. After that period, the degree of degradation of texture was much delayed in green tea added kimchi.

• 대한기계학회논문집A
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• 제24권6호
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• pp.1616-1623
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• 2000

A diaphragm spring is an important component of a clutch assembly, characteristics of which depends largely on that of a diaphragm spring. A diaphragm spring is subject to high stress concentration in driving condition, which frequently causes cracks and fracture around finger area. In this paper, behavior of a diaphragm spring is analysed by finite element method to calculate sensitivity of design parameters, which is used to perform optimal design of diaphragm spring shape. As an object function, hoop stresses are taken and minimized to improve durability. Characteristics of the diaphragm is used as equality constraint to maintain the original design purpose and sequential linear programming(SLP) is utilized as an optimization tool. With optimized design, it is verified that concentrated stress is decreased maintaining release load characteristic.

• 대한한의학원전학회지
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• 제24권6호
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• pp.111-124
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• 2011

The objectives of this study are to look into the grammatical characteristics and find misinterpretations on the translation books. 1. Sentences characteristics 1) Lots of ellipses of grammatical parts can be found such as conjunction, postposition, particle, Coverb, and focus on the parts which has practical meaning such as noun, pronoun, verb, adjective in the sentences. 2) Some predicates are skipped in the later phrases which has contradictive concepts against them of former phrases. 3) Pure Korean word order is exposed especially in complement. 2. Translation fallacy 1) There is fallacy in the sentences omitted paratactic conjunction as follows (1) mistranslation based on the wrong concept of the context between equal relation and subordinate relation. (2) failure on setting up the period, (3) misunderstanding equal relation as cause relation. 2) Some singular phrases, which are condition relation, were analyzed as plural phrases in the sentences omitted connection conjunction. 3) Ellipses of postposition obstruct understanding the difference between modifier and modificand in some sentences. 4) Some cause relation phrases were translated as equality relation due to lack of recognition of ellipsis of coverbs.

• 한국자동차공학회논문집
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• 제3권6호
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• pp.96-111
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• 1995

A bellows is a component installed in the automobile exhaust system to reduce the impact from an engine. It's stiffness has a great influence on the natural frequency of the system. Therefore, it must be designed to keep the specified stiffness that requires in the system. This study present the finite element analysis of U-typed bellows using a curved conical frustum element and the shape optimal design with specified stiffness. The finite element analysis is verified by comparing with the experimental results. In the shape optimal design, the weight is considered as the cost function. The specified stiffness from the system design is transformed to equality constraints. The formulation has inequality constraints imposed on the fatigue limit, the natural frequencies, the buckling load and the manufacturing conditions. A procedure for shape optimization adopts a thickness, a corrugation radius, and a length of annular plate as optimal design variables. The external loading conditions include the axial and lateral loads with a boundary condition fixed at an end of the bellows. The recursive quadratic programming algorithm is selected to solve the problem. The result are compared with the existing bellows, and the characteristics of the bellows is investigated through the optimal design process. The optimized shape of the bellows are expected to give quite a good guideline to the practical design.

• 가정과삶의질연구
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• 제1권2호
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• pp.107-125
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• 1983

This study aimed to clarify the attitude toward marriage, mate selection and sexual consciousness of japanese unmarried women students whom are believed in drastic change in a overall social value system and norm due to the introduction of western civilization, so as to provide some information of the same subject of our young women in similar situation. Survey was carried out for 177 unmarried Japanese women students of 3 Universities located in Osaka prefecture situation. Data were collected by means of Questionnaire and analyzed by SPSS BATCH SYSTEM. Result are as follows; 1) Pattern of mate selection- An increasing tendency of love match is recognized 2) Attitude to marriage-94.0% of correspondences want to marry and proper age of marriage, they think, is between 22-25 years. 3) Love-marriage relation- most correspondences answered that love is a prior condition for marriage, however, 32.8% of correspondences think, love can be built after the marriage. 4) Dating- most correspondences want free dating, however, they fell that they are lacking for opportunity and they are not confident in the selection of proper mate. 5) Premarital sexual intercourse-most correspondences show a very generous attitude toward premarital sexual intercourse if they are in love and this attitude becomes more remarkable among love match makers. 6) Equality of sexes-most correspondences answered that as women are different in physiological function from men, distinctive social roles of both sexes and the inequality of sexes are inevitable.

• 대한기계학회논문집A
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• 제20권12호
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• pp.3871-3882
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• 1996

In this paper, a closed-form formulation for inverse kinematics of robot manipulators with kinematic redundancy under the constrained environment has been derived using the Kuhn-Tucker condition, the extended Lagrange multiplier method and the working set method. The proposed algorithm satisfies the necessaryand sufficient conditions for optimization subject to equality and inequality constraints. In addition, computationally efficient kinematic control methods have been proposed using differential kinemetics and gradient projection mehtod. The effectiveness of the proposed methods has been demonstrated with a 4-dof planar robot, and then a 7-dof spatial robot as a practical application to the nozzle dam task in the Nuclear Power Plant.