• East Asian mathematical journal
• /
• 제21권1호
• /
• pp.65-76
• /
• 2005

In this paper the concept of semi-compatibility has been introduced in Menger space and it has been applied to prove results on existence of unique common fixed point of four self maps satisfying an implicit relation. It results in a generalization of Banach contraction principle established by Sehgal and Bharucha-Reid in [8] All the result presented in this paper are new.

• International Journal of Fuzzy Logic and Intelligent Systems
• /
• 제10권3호
• /
• pp.194-199
• /
• 2010

In this paper, we give definitions of compatible mappings of type(I) and (II) in intuitionistic fuzzy metric space and obtain common fixed point theorem and example under the conditions of compatible mappings of type(I) and (II) in complete intuitionistic fuzzy metric space. Our research generalize, extend and improve the results given by many authors.

• 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
• /
• 제18권4호
• /
• pp.7-16
• /
• 2012

Purpose : The purpose of this study is to look into the change of area and space organization percentage of wards in main general hospitals in Busan and Gyeongnam. Method : Patient area, nursing area, service area, training area, common area were classified for functional space organization. Patient area was reclassified to bedroom and comfort area, and common area was reclassified into vertical circulation, horizontal circulation and facility area. Also, method of area calculation was chosen standard to wall center-lines following building act 911 and functional space area of each hospital was estimated and comparatively analyzed. Result : For hospitals completed before 2000, area ratio by functional space for patient area, nursing area, service area and common area showed 53.6%, 10.2%, 0.8%, and 35.3% respectively. For hospitals completed after 2000, area ratio by functional space for patient area, nursing area, service space, and common area showed 49.2%, 12.6%, 1.1%, and 37.2% respectively. Implications : Through this study, change of percentage of space organization of main general hospitals in Busan Gyeongnam can be understood. Also because most studies on area organization of general hospital wards were focused on the capital area, this study provides basic material for future studies related to area of general hospital wards in Busan Gyeongnam.

• 한국실내디자인학회:학술대회논문집
• /
• 한국실내디자인학회 2003년도 춘계학술발표대회 논문집
• /
• pp.54-58
• /
• 2003

The purpose of this study is to clarify the daily living activities of the elderly with dementia and user oriented spatial needs of the staff in the common space of nursing home in Japan. Data was taken from six units of the 2 skilled facilities. The results revealed as follows; 4 types of elderly activities were founded, and physical environmental characteristics affected residents' space usage. And it was perceived like as living oriented space, social interaction space, facility space, staff oriented space. Conclusively it was suggested to plan dining space as semi-private space, day corner as semi-public space.

• 한국주거학회논문집
• /
• 제27권4호
• /
• pp.67-76
• /
• 2016

The purpose of the study was to identify user' satisfaction about universal design in public service center that will be needed for helping planning and design the public service center. This study conducted a questionnaire survey targeting visitor in five district's public service center in Gwangju metropolitan city. A total of 253 responses were analyzed for identifying the level of satisfaction about universal design in public service center. The study also analyzed of the respondents depending on their demographic characteristics. The features of universal design were categorized into supportive design, communicability, safety-oriented design and accessible design, and total 25 specific items were included in the evaluation. Most of the respondents were satisfied with the waiting space, however they showed a lower level of satisfaction toward the information materials space. Those with a higher education attainment tended to be associated with stronger satisfaction with common space and information materials space. Groups with a lower age were more likely to be satisfied with common space and public service space. Also female tended to show a stronger degree of satisfaction with common space than male. The findings from this study should provide a guideline for planning and design the public service center.

• Journal of Power Electronics
• /
• 제13권4호
• /
• pp.647-655
• /
• 2013

In this paper, an approach to reduce the common-mode voltage and to eliminate narrow pulse for implemented AC-DC matrix converters is presented. An improved space vector modulation (SVM) strategy is developed by replacing the zero space vectors with suitable pairs of active ones. Further, while considering the commutation time, the probability of narrow pulse in the conventional and proposed SVM methods are derived and compared. The advantages of the proposed scheme include: a 50% reduction in the peak value of the common-mode voltage; improved input and output performances; a reduction in the switching loss by a reduced number of switching commutations and a simplified implementation via software. Experimental results are presented to demonstrate the correctness of the theoretical analysis, as well as the feasibility of the proposed strategy.

• Journal of applied mathematics & informatics
• /
• 제26권3_4호
• /
• pp.785-791
• /
• 2008

In this paper, we give a generalized contractive type condition for a pair of self maps of a metric space and analyze the existence of common fixed points for these maps of a metric space.

• 한국수학교육학회지시리즈B:순수및응용수학
• /
• 제18권3호
• /
• pp.255-260
• /
• 2011

In this paper, we define the intuitionistic fuzzy contraction, and obtain some fixed point theorem using common property(E.A.) and weakly compatibility in intuitionistic fuzzy metric space.

• 충청수학회지
• /
• 제28권1호
• /
• pp.13-28
• /
• 2015

In this paper, we use two mappings satisfying certain expansive conditions to construct convergent sequences in complex valued metric spaces, and then we prove that the limits of the convergent sequences are the points of coincidence or common fixed points for the two mappings. The main theorems in this paper are the generalizations and improvements of the corresponding results in real metric spaces, cone metric spaces and topological vector space-valued cone metric spaces.

• 대한수학회논문집
• /
• 제32권1호
• /
• pp.65-74
• /
• 2017

In this paper, we establish a unique common fixed point theorem for T-contraction of two self maps on generalized cone b-metric spaces with solid cone. The result of this paper improves and generalizes several well-known results in the literature. Two examples are also given to support the result.