• The KIPS Transactions:PartA
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• v.12A no.6 s.96
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• pp.499-506
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• 2005

Recently, Hyper-Star network HS(m,k) which improves the network cost of hypercube has been proposed. In this paper, we show that the bisection width of regular Hyper-Star network HS(2n,n) is maximum (2n-2,n-1). Using the concept of container, we also show that k-wide diameter of HS(2n,n) is less than dist(u,v)+4, and the fault diameter is less than D(HS(2n,n))+2, where dist(u,v) is the shortest path length between any two nodes u and v in HS(2n,n), and D(HS(2n,n)) is its diameter.

• Proceedings of the Korean Information Science Society Conference
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• 2001.04a
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• pp.742-744
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• 2001

이 논문은 n-차원 스타 그래프 S$_{n}$, n$\geq$4에서 정점과 에지 고장의 수가 n-3 이하일 때, 임의의 두 고장이 아닌 정점 사이에 길이가 두 정점의 색이 같으면 n!-2f$_{v}$ -2 이상이고, 색이 다르면 n!-2f$_{v}$ -1 이상인 경로가 존재함을 보인다. 여기서 f$_{v}$ 는 고장인 정점의 수이다. 이 결과를 이용하면 고장의 수가 n-3이하일 때, 임의의 고장이 아닌 에지를 지나는 길이 n!-2f$_{v}$ 이상인 사이클을 설계할 수 있다.

• Journal of the Korean Institute of Telematics and Electronics C
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• v.35C no.6
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• pp.1-8
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• 1998

In this paper, we designed a low power 8bit ELM adder with static CMOS and hybrid logic styles on a chip. The designed 8bit ELM adder with both logic styles was fabricated in a 0.8$\mu\textrm{m}$ single-poly double-metal, LG CMOS process and tested. Hybrid logic style consists of CCPL(Combinative Complementary Pass-transistor Logic), Wang's XOR gate and static CMOS for critical path which determines the speed of ELM adder. As a result of chip test, the ELM adder with hybrid logic style is superior to the one with static CMOS by 9.29% in power consumption, 14.9% in delay time and 22.8% in PDP(Power Delay Product) at 5.0V supply voltage, respectively.

• The KIPS Transactions:PartA
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• v.17A no.1
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• pp.1-8
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• 2010

The fault diameter is one of the important measures for transmission rate and reliability of interconnection network. H.-O. Lee et al.[Parallel paths in folded hyper-star graph, Journal of KIPS, Vol.6, No.7, pp.1756-1769, 1999] suggested the node-disjoint paths of FHS (2n,n), and proved that the fault diameter of FHS(2n,n) is less than 2n-1. In this paper, we suggest an advanced node-disjoint paths of FHS(2n,n). We also prove that the wide diameter of FHS(2n,n) is dist(U,V)+4, and the fault diameter of FHS(2n,n) is less than n+2.

• 한국벤처창업학회:학술대회논문집
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• 2022.11a
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• pp.187-191
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• 2022

최근 기초화장품 트렌드로 클린 화장품, 비건 화장품 등이 브랜드별로 새롭게 출시되고 시장내 성장하고 있다. 한동안 화장품의 성분에 대한 관심과 영향이 커지면서 기능성화장품, 코스메슈티컬화장품, 더마화장품들이 신뢰를 얻고 인기가 있던 가운데, 효능 외의 요소를 소구하는 브랜드와 제품에 대한 관심이 커지고 있는 중이다. 본 연구는 이러한 변화에 있어 소비자의 라이프스타일과 소비가치의 상관관계가 영향이 있을 것으로 보고 이를 분석하고자 한다. 또한 ESG가 강조되는 사회 분위기 속에 클린 화장품 또는 비건 화장품의 소비가 일종의 자기표현의 욕구를 충족시켜주는 역할로써의 관계가 있는지도 알아보고자 한다. 따라서 기초 화장품을 사용하는 소비자들을 대상으로 라이프스타일과 자기표현욕구가 비건화장품 구매의도에 미치는 영향 및 소비가치를 매개변수로 하여 라이프스타일과 자기표현욕구와 구매의도 간의 영향을 살펴하고자 한다. 독립변수는 라이프스타일의 하위변수인 외모관리 지향형, 질적건강추구형으로 구분하였고, 자기표현욕구를 사용하였다. 설문조사는 대학생, 직장인, 주부등 20대부터 40대까지 연령층을 대상으로 진행하여 실증분석에 사용할 예정이다. SPSS v22.0을 사용하여 3단계 매개모형을 기반으로 회기분석할 예정이다.

• Therapeutic Science for Rehabilitation
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• v.13 no.2
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• pp.69-84
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• 2024

Objective : This study aimed to categorize the lifestyles of older adults into two types - healthy and unhealthy, and use machine learning to identify the personal values that influence these lifestyles. Methods : This cross-sectional study targeting middle-aged and older adults (55 years and above) living in local communities in South Korea. Data were collected from 300 participants through online surveys. Lifestyle types were dichotomized by the Yonsei Lifestyle Profile (YLP)-Active, Balanced, Connected, and Diverse (ABCD) responses using latent profile analysis. Personal value information was collected using YLP-Values (YLP-V) and analyzed using machine learning to identify the relative importance of personal values on lifestyle types. Results : The lifestyle of older adults was categorized into healthy (48.87%) and unhealthy (51.13%). These two types showed the most significant difference in social relationship characteristics. Among the machine learning models used in this study, the support vector machine showed the highest classification performance, achieving 96% accuracy and 95% area under the receiver operating characteristic (ROC) curve. The model indicated that individuals who prioritized a healthy diet, sought health information, and engaged in hobbies or cultural activities were more likely to have a healthy lifestyle. Conclusion : This study suggests the need to encourage the expansion of social networks among older adults. Furthermore, it highlights the necessity to comprehensively intervene in individuals' perceptions and values that primarily influence lifestyle adherence.

• Proceedings of the Korean Information Science Society Conference
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• 2004.10a
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• pp.58-60
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• 2004

최근에 하이퍼큐브의 망비용을 개선한 하이퍼-스타 연결망이 제안되었다. 본 논문에서는 하이퍼-스타 연결망 HS(2n, n)의 container를 이용하여 k-wide diameter가 dist(u, v)＋4이하임과 HS(2n, n)의 고장지름이 D(HS(2n, n))＋2 이하임을 보인다.

• Food Engineering Progress
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• v.13 no.4
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• pp.243-250
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• 2009

Pravastatin sodium, competitive inhibitors of HMG-CoA(3-hydroxy-3-methylglutaryl coenzyme A) reductase, is produced from the culture broth of Streptomyces carbophilus KCCM 10370, The production of Pravastatin sodium was increased about 45 fold compared to wild type by UV mutation. Production of Pravastatin was also improved by continuous feeding of Compactin sodium to 24% and bioconversion ratio was also increased to 4.3% by intermittent addition. In main culture, concentration of Compactin sodium was kept less than 0.1%(w/v) under continuous feeding of Compactin sodium then product was 0.49% and bioconversion was 70%. After finishing the fermentation, Pravastatin was purified by various chromatographies such as Diaion HP20 resin column, Partition, and ODS(Octa-Decylsilyl Silicagel) resin column with a final yield of 70~72% and over 99.7% purity. The IR, UV, and NMR study of the purified Pravastatin sodium showed the same pattern as that of EP(European Pharmacopoeia).

• The Journal of the Korea Contents Association
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• v.8 no.10
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• pp.278-286
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• 2008

This study's purpose is to offer to basic data in each professional soccer team's spectator marketing strategy through researching the influence of spectators' life style on the appeal of professional soccer. This study's survey is target 500 spectators who were present at the professional soccer championship game in 2007 at Seongnam Stadium. Data analysis was done on 484 spectators's questionnaires using SPSS V. 12.0. To analyze materials the frequency, correlations, and regression analysis were used as statistic analysis techniques. The conclusion based on above study method and the result of material analysis are here below. First, the influence of spectator's life-style on the loyalty(action loyalty, attitude loyalty)of professional soccer. Second, the influence of spectator's life style on the appeal(field factor, game circumstance factor, spectating expense factor, promotion factor, entertainment factor, player factor)of professional soccer.

• Journal of Korean Ophthalmic Optics Society
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• v.20 no.2
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• pp.83-92
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• 2015

Purpose: This study was performed to offer some more effective marketing strategies for optical shops on a basis of analyses of what lifestyles influence most on 'store selection' and 'recommendation intention' and of what properties of 'store selection' influence most on 'recommendation intention'. Methods: Questionnaire surveys were conducted from the customers who visited the optical shops in Seoul and northern Gyeonggi-do region from January 1 to June 30, 2014. It was analyzed via utilizing SPSS v.20.0 statistical package program. Results: The results in lifestyle-factors which influence on store selection were arranged in order as follows: 'stability oriented', 'goal oriented', 'cultural activity oriented'. And the results in value-factors which influence on 'recommendation intention' were arranged in order as follows: 'stability oriented', 'health oriented'. The most positive factor for 'recommendation intention' was revealed as 'dealing with customers' among several factors of 'store selection'. Conclusions: Today's marketing activities for customers should be suited for different lifestyles of customers. Customers who have 'stability oriented', 'goal oriented', and 'cultural activity oriented' lifestyles tend to select optical shops in consideration of 21 items when selecting an optical shop. Customers who have 'stability oriented', and 'health oriented' lifestyles have positive influences related to 'recommendation intention'. Also, it is likely for customers to recommend optical shops to others when the factor 'dealing with customers' meets their expectations.