• Journal of Korean Institute of Industrial Engineers
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• v.32 no.2
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• pp.74-81
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• 2006

In this paper, we deal with the separation of data by concurrently determined, piecewise nonlinear discriminant functions. Toward the end, we develop a new $l_1$-distance norm error metric and cast the problem as a mixed 0-1 integer and linear programming (MILP) model. Given a finite number of discriminant functions as an input, the proposed model considers the synergy as well as the individual role of the functions involved and implements a simplest nonlinear decision surface that best separates the data on hand. Hence, exploiting powerful MILP solvers, the model efficiently analyzes any given data set for its piecewise nonlinear separability. The classification of four sets of artificial data demonstrates the aforementioned strength of the proposed model. Classification results on five machine learning benchmark databases prove that the data separation via the proposed MILP model is an effective supervised learning methodology that compares quite favorably to well-established learning methodologies.

• BMB Reports
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• v.49 no.10
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• pp.572-577
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• 2016

The short gastrulation (sog) shadow enhancer directs early and late sog expression in the neurogenic ectoderm and the ventral midline of the developing Drosophila embryo, respectively. Here, evidence is presented that the sog primary enhancer also has both activities, with the late enhancer activity dependent on the early activity. Computational analyses showed that the sog primary enhancer contains five Dorsal (Dl)-, four Zelda (Zld)-, three Bicoid (Bcd)-, and no Single-minded (Sim)-binding sites. In contrast to many ventral midline enhancers, the primary enhancer can direct lacZ expression in the ventral midline as well as in the neurogenic ectoderm without a canonical Simbinding site. Intriguingly, the impaired transcriptional synergy between Dl and either Zld or Bcd led to aberrant and abolished lacZ expression in the neurogenic ectoderm and in the ventral midline, respectively. These findings suggest that the two enhancer activities of the sog primary enhancer are functionally consolidated and geographically inseparable.

• Asia pacific journal of information systems
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• v.14 no.4
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• pp.123-145
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• 2004

This paper empirically and longitudinally examines relationships among corporate strategy, competitive advantage of information technology (CAIT), and organizational performance. This research replicates the research done in 1997 and compares the results to observe any noticeable changes. Research results confirm that information technology provides several traits of strategic advantages such as efficiency, threat, functionality, preemptiveness, and synergy and significantly contributes to corporate performance both in 1997 and 2004. The findings reinforce the accepted belief that alignment between corporate strategy and CAIT is critical for firms to attain sustainable competitive advantage, subsequently enhances corporate performance and competitive position against rivals, potential entrants, substitutes, suppliers, and buyers. Research results of 2004 show stronger relationships among corporate strategy, competitive advantage of information technology, and organizational performance than research results of 1997.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2009.01a
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• pp.632-637
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• 2009

Recently Renku (Haikai no Renga) is getting popular as well as Haiku in Japan. It was built up by Basho Matsuo, who was the most famous Haiku poet. It is said that Kyoshi Takahama proposed the name of "Renku" to distinguish it from "Renga" and "Haiku" in 1904. Renku meetings are held like Haiku ones regularly now in each place, and in several universities, they conduct a class exercise of Renku continuously. It is very important for plural persons to work together cooperatively. Poetry, Tanka, Haiku and Renku are usually composed of only letters. It sometimes happens that we add pictures to make them more attractive and to aim at synergy by collaboration (letters and pictures). However, the study to produce 3DCG animations of Renku has not been reported very much. Sowe studied to produce 3DCG animations work based on the rule of Renku and its evaluation.

• Journal of Distribution Research
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• v.9 no.1
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• pp.1-24
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• 2004

As the dot-com companies realize the importance of the traditional business operations such as product distribution and sourcing, the task of balancing business strategy and operations between electronic commerce and"bricks St mortar"channels is an ongoing challenge. However, there are no generic recipes for formulating business strategy that optimally bridges the physical and virtual operations. In order to provide some guidelines, this study examines the big 3 retailers in Korea, and their"clicks ＆ mortar"strategy, assessing how the activities of each channel are integrated to achieve the synergy effect. This study analyzes the differences in the pattern of integration among the three retailers and traces the causes of those differences. It also figures out the relationship between the degree of integration and performance variables such as growth and cost. Finally. it defines the essential constraints on the process of integration along with managerial implications.

• Archives of design research
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• v.21
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• pp.207-217
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• 1997

Mixed Use Area (Multifaceted Integration) is getting increasingly demanded since it has several merits such as preventing CBD from being emptied during night time, making daily life comfortable and utilizing the land more efficiently. However, the characteristic of Mixed Use Area -as advantages of it-, which is that it combines residence, retail, office, cultural, entertainment facilities altogether could be regarded as a weakness when it is viewed from each functions' original purposes such as residential and retail areas'. Accordingly, it is needed to do basic research and develop design guidelines of the Mixed Use Area to prepare its another take-off. The purpose of this research is to study theoretical background of Mixed Use Area's birth, understand its status quo by examining examples overseas and presented possible standardized ways of developing it.

• Journal of Korean Society for Quality Management
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• v.29 no.4
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• pp.133-152
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• 2001

In order to have competitive advantage for the business firms, companies need to raise competitiveness through the effective distribution and practical use of management resources along with strategic management of integration of existing management systems such as quality and business environment. Upon resulting of questionnaires to expert group, it is definite to have an integration of quality and environment system for the better efficiency of firms, and also recommended to have either a mixture of two systems or build up new integration system through uniform of two systems. The effects of the integrated system can be summarized as an increase of company image, efficiency of system operation, simplification of system management, synergy effects on the integration.

• 한국공간정보시스템학회:학술대회논문집
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• 1999.06a
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• pp.217-228
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• 1999

최근 범국가적인 GIS구축사업을 위한 효율적인 지형공간정보취득기법에 대한 요구가 날로 증가하고 있다. 이는 HW, SW 및 데이터로 구성되는 GIS구축에서 지형자료가 차지하는 비중과 이의 취득에 필요한 노력이 매우 중요함을 반증하고 있다. 이에 부응하여 국내에서도 재래식측량기법의 자동화/현대화에서부터 GPS측량기술의 도입, Airborne-항공사진측량기법의 개발 및 고해상도위성영상의 활용방안에 이르기까지 새로운 측량기술에 대한 다양한 연구와 기술축적을 서두르고 있는 실정이다. 그러나 위의 어떠한 측량기법도 단독으로는 정확도, 신속성, 경제성, 현재성 등 GIS 자료취득의 모든 요구조건을 만족하는 Total Solution이 되지 못하고 있다. 따라서 본 연구에서는 매핑과 GIS-자료취득에 활용되고 있는 여러 가지 항공측량기술의 현황과 장단점을 살펴보았다. 또한 위성에 의한 위치결정시스템인 GPS와 관성항행장치인 INS를 결합하여 항공측량 분야에 필요한 센서의 위치와 회전각을 결정하므로서 시너지(Synergy)효과를 높이는 기법을 소개한다.

• Korean Journal of Microbiology
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• v.39 no.4
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• pp.293-295
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• 2003

Total 70 isolates of Escherichia coli obtained from pigs were studied. Forty four isolates had $\textregistered$-hemolytic activity which was heat labile. Minimum inhibitory concentration test indicated that 40 isolates (57.1%), 15 isolates (21.4%), 23 isolates (32.9%), and 5 isolates (7.1%) were resistant to ampicillin, cephalothin, gentamicin, and norfloxacin, respectively. None of them were extended spectrum $\textregistered$-lactamases (ESBLs) producer when the double disk synergy test (DDST) was performed.

• Proceedings of the Korea Society for Energy Engineering kosee Conference
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• 1995.05a
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• pp.158-162
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• 1995

Synergistic effects of mixed solvents, especially with mixtures of CS$_2$ with electron donor solvents, in inducing desired structural changes in coals were studied by solvent swelling techniques in addition to differential scanning calorimetric analyses. Mixed solvents exhibit significant synergistic efficacy in swelling the coal structure of medium bituminous rank. This synergy effect appears to be physical origin that is closely related to matching solubility parameters. Since the swollen coal structure can be obtained by mixed solvents with CS$_2$ at room temperature instead of high temperature, many possible technological pathways for economical utilization of coal might be sought.