• Title/Summary/Keyword: diversified system

Search Result 452, Processing Time 0.021 seconds

Detection and Management of Misbehaving Node in Tactical Ad-Hoc Networks (전술 Ad-hoc 네트워크에서의 비정상행위 노드 탐지 및 관리)

  • Jang, Beom-Geun;Lee, Soo-Jin
    • Journal of the Korea Institute of Military Science and Technology
    • /
    • v.12 no.3
    • /
    • pp.333-343
    • /
    • 2009
  • Tactical Information Communication Network(TICN) is a concept-type integrated Military Communication system that enables precise command control and decision making by unifying the diversified military communication network and conveying diverse range of battle field information on real-time, at right place at right time. TICN is designed to advance into high speed, large capacity, long distance wireless relay transmission. To support mobility in battlefield environments, the application of Ad-hoc networking technology to its wireless communication has been examined. Ad-hoc network is consist of mobile nodes and nodes in the network depends on the cooperation of other nodes for forwarding of packets. In this context, some non-cooperating nodes may delay forwarding of packets or drop the packets. This may hamper the network as a whole and disrupt communication between the cooperating nodes. To solve this problem, we present a solution with a Node Weight Management Server(NWMS), which manages each node's weight according to its behavior in local area. When the NWMS detects misbehaving node, it increases the node's weight. If the node's weight exceeds a predefined threshold then the NWMS broadcasts the node's information into network to isolate the misbehaving node from the network. These mechanisms show that they are highly effective and can reliably detect a multitude of misbehaving node.

Current States of Sibling Researches in America (미국 동기관계연구의 최근동향 - 기본인식과 접근방법-)

  • 박영애
    • Journal of Families and Better Life
    • /
    • v.8 no.2
    • /
    • pp.147-162
    • /
    • 1990
  • The purpose of this review is to establish a groundwork for building a more comprehensive conceptual framework within which various aspects of sibling relations and factor related to sibling behaviors con be explained and integrated. Descriptions of the trends and shifts in sibling studies are made in terms of their themes, variables, basic perceptions and general approaches, and analyzes of current state of sibling researches are made with relation to the conceptual aspects of the studies, namely, their standpoints on the issues of sibling variations, the sources of variations, and basic units of analysis, their reliance or emphasis on different methods, and their interests in the mediation processes. It is recognized that research variables have been successively differentiated and used in diversified manners and family ecology and systems theory viewpoints have been incorporated into the understanding of sibling relations. A triad in its full meaning, rather than a dyad or a partial trial, is proposed as a unit of analysis in order for the researchers to be able to examine and describe the true interactional aspects of family relations involving sibling relations. The concepts of coexistence and interaction are proposed as key concepts os that the inconsistencies in findings, differing viewpoints, contradicting conceptions , and contrasting approaches can be interpreted and integrated into a unified system of theories on siblings. The coexistence of similarities and differences in reality. the inevitability of interaction between individual variables and environmental variables and between within-family environmental factors and our-of-family environmental factors, and the need for the joint use of intrafamilial and extrafamilial approach are acknowledged. Attention is also drawn to the mechanism characteristics and the directionality of the mediating processes of mediating variables between a variable and its effects.

  • PDF

A Study on Actual Condition and Efficiency of Evacuation Facility in Multiplex Available Premises (다중이용업소의 피난설비 관련 실태조사 및 효율성에 관한 연구)

  • Park, Jae-Sung;Yoon, Myong-O;Park, Jong-Tae
    • Fire Science and Engineering
    • /
    • v.22 no.2
    • /
    • pp.97-103
    • /
    • 2008
  • As multiplex available premises become more complex and diversified due to increasing social and individual demands, the evacuation safety gradually deteriorates exhibiting functional difficulties even in ordinary fires. Considering the limitations of passive evacuation systems such as evacuation stairs and corridors, an evacuation facility must be designed, installed, and maintained the way that it remains fully functional and efficient when fire breaks out. This study tries to identify the issues of evacuation facilities and devise how to improve them by investigating the evacuation facility efficiencies of multiplex available premises and conducting a survey on fire safety attitude.

A Study on S.I.P(Shop Identity Program) Design method Task in Multi-used Shopping Complex. (복합상업공간의 점포 정위화 전략의 디자인 방법에 관한 연구)

  • 하재경
    • Journal of Korean Society of Industrial and Systems Engineering
    • /
    • v.19 no.37
    • /
    • pp.127-136
    • /
    • 1996
  • Due to the development of technology, urbanization, industrialization, etd. at modern times, even the individual view of value has changed in variety. That means the change of each consumcer's life-style and even that of propensity to consume. In that regard, the modern, commercial space became to be increasingly included to specialization and complication. Such specialization and complication of the commercial space can be thought to be a positive response of enterprises to satisfy the needs or desire of consumers who become diversified. In this study, some new models in the method of the planning and designing of the S.I.P(Shop Identity Program). intended to research into as follows ; - As the background of the advent of the multi-used shopping complex, changes in consumer life-style and propensity to consume according to social and economical changes were intended to be studied through various statistical data literature. - For the study of the characteristics, constituent conditions, and planning operation of the future multi used shopping complex in the marketing aspect of enterprises, it was intended to study centered on the theory of consumer behavior and that of retail marketing. - In the process of the spatial design of the multi-used shopping complex, it was tried that a designing process to materialize a target of the discrimination and orderly arrangement of stores be progressed. In the process of materializing a target based on both corporate image and 'brand' image in designing.

  • PDF

A Study on the Distribution of Ladies' Apparel Manufacturing Companies (국내 여성기성복 유통실태 분석 -제조업체를 중심으로 -)

  • Song Kyung Sook;Rim Sook Ja
    • Journal of the Korean Society of Clothing and Textiles
    • /
    • v.13 no.4
    • /
    • pp.330-338
    • /
    • 1989
  • The Korean apparel manufacturing industry started to meet domestic demands which had depended on importation in 1950s, growing into one of the export-oriented industries with several Five-Year Economic Development Plans. In spite of the development, inefficient organization of distribution of apparel manufacturing industry which connects production with consumption impedes further development of the industry. This study aims at suggesting desirable distribution system of ladies' apparel, the core of the fashion industry. This researcher interviewed those who are concerned in twenty-eight ladies' apparel manufacturing compaines, analyzing the current state of distribution in the industry and the problems. The results are as follows; 1. Forty-five percent of ladies' apparel is distributed through department stores. Therefore, the department stores need to assume their roles in sales and try to improve the condition and to train professional buyers. 2. The sales network is concentrated on the five biggest cities such as Seoul, Pusan, Taegu, Taechon, and Kwangju, prompting the need to be diversified. 3, Tke existing distribution forms distribution systems have many irrational factors which are aggravnting the rate of goods in stock. 4. The manufacturing companies do not implement studies on distribution. The companies should try to establish clear concepts on production and distribution on their own for better planning skills. 5. Computerized systems need to manage the procedures ranging from ordering, distribution, sales to inventory.

  • PDF

Patent Keyword Analysis for Forecasting Emerging Technology : GHG Technology (부상기술 예측을 위한 특허키워드정보분석에 관한 연구 - GHG 기술 중심으로)

  • Choe, Do Han;Kim, Gab Jo;Park, Sang Sung;Jang, Dong Sik
    • Journal of Korea Society of Digital Industry and Information Management
    • /
    • v.9 no.2
    • /
    • pp.139-149
    • /
    • 2013
  • As the importance of technology forecasting while countries and companies manage the R&D project is growing bigger, the methodology of technology forecasting has been diversified. One of the forecasting method is patent analysis. This research proposes quick forecasting process of emerging technology based on keyword approach using text mining. The forecasting process is following: First, the term-document matrix is extracted from patent documents by using text mining. Second, emerging technology keyword are extracted by analyzing the importance of word from utilizing mean values and standard deviation values of the term and the emerging trend of word discovered from time series information of the term. Next, association between terms is measured by using cosine similarity. finally, the keyword of emerging technology is selected in consequence of the synthesized result and we forecast the emerging technology according to the results. The technology forecasting process described in this paper can be applied to developing computerized technology forecasting system integrated with various results of other patent analysis for decision maker of company and country.

A Study on the Organization of Ryu Gen in at Aai Toku Ji temple in Japan. (일본 대덕사의 용원완정원의 조직성에 관한 연구)

  • 안계복
    • Journal of the Korean Institute of Landscape Architecture
    • /
    • v.24 no.3
    • /
    • pp.5-13
    • /
    • 1996
  • This study is about to prove one factor among many ones that contribute to the formation of the Japanese Garden's pattren. It is believed by this study that distinguished Japanese Garden's pattren are made possible by an organized ability of the japaneses traditional landscape artists who had ability to develope a diversified forms of applications within the organized framework. To verify this assumption, the study has chosen Ryu Gen In, temple garden that is considered to determine the pattren of Japanese Garden best with a new concept ; Organization. The results of this analysis show as follows : 1. Ryu Gen In, consists of a series of building and five-small gardens, is largely organized by the union of two geometric formations : concave and convex. Each garden as a sub-organization is further organixed with a series of tree-branch typed structure. 2. The five-small gardens are formed jinto a whole system by connecting each one with floor. This connection makes a timely organization. 3. Each small garden is further organized alloted roles, namely, depends upon whether they play a major or minor role. 4. It is believed that sands and moss play a cotrolling role to conbine the elements into one within each unit of small garden. 5. It is found that figured sands, moss, sands and moss, or shrubs are used as means of organization to connect the small group elements within each small gardens. 6. It is considered that buildings and mud-walls are used as means of separation between Ryu Gen In and an outer world, and betwen small gardens.

  • PDF

Making Packets from Animation Gestures -Based on the Effort Element of LMA- (애니메이션 제스처의 패킷화 -LMA의 Effort 요소를 기반으로-)

  • Lee, Mi-Young;Hong, Soo-Hyeon;Kim, Jae-Ho
    • The Journal of the Korea Contents Association
    • /
    • v.11 no.3
    • /
    • pp.179-189
    • /
    • 2011
  • Gesture is one of the means for non-linguistic communication which can be expressed by human characters in animations. High drawing ability and profound knowledge about gestures are both required for animators to achieve efficient gesture expressions. However, diversified profound techniques are needed to master this knowledge which makes it very difficult for common animation drawers. In this paper, characteristics for each gesture are analyzed based on Laban Movement Analysis and gesture classification by making gesture packets. This research is of notable significance in providing animators with high efficient gesture expression techniques and developing automatic gesture-generating system.

Principles and Skills of Organic Crop Production with special regards to Germany (유기작물재배의 이론 및 핵심기술 -독일을 중심으로-)

  • 손상목
    • Korean Journal of Organic Agriculture
    • /
    • v.9 no.4
    • /
    • pp.71-93
    • /
    • 2001
  • Within the paper, an overview of organic farming in Europe countries is given and the Principle and skills of organic agriculture is shortly reported with special regard to Germany. The overview information on European organic forming is covered such as \circled1 development of organic farming, \circled2organic farming organizations, \circled3standards and certification, \circled4implementation of EU council regulation, \circled5state support, \circled6implementation of Agenda 2000, \circled7training and education, \circled8advisory service and research situation. In the paper the principle and skills for organic farming which are practiced actually in the German organic farms is also reported. How to maintain and increase the fertility and microbiological activity of the soil by \circled1cultivation of legumes, green manures or deep-rooting crops in multi-annual rotation system, \circled2incorporation in the soil organic material, by-products from livestock farming is one of the major principle to organic crop production. Pest and diseases and weeds are controlled by any one, or a combination of the following measure ; \circled1choice of appropriate species and varieties, \circled2appropriate rotation programs, \circled3mechanical cultivation, \circled4protection of natural enemies of pests through provision of favourable habitat and ecological buffer zone, \circled5diversified ecosystems, \circled6flame weeding, \circled7natural enemies, \circled8bio-dynamic preparations, \circled9mulching and mowing, \circled10grazing of animals, ⑪mechanical controls, ⑫steam sterilization.

  • PDF

Effect of Nonionic Surfactant Solutions on Wetting and Absorbancy of PET Fabric 1. Mixtures and Dilutions of Span 20 and Tween 20 (비이온계 계면활성제 수용액이 PET직물의 습윤특성에 미치는 영향 제1보 : Span 20과 Tween 20의 혼합계와 희석계)

  • 김천희
    • Journal of the Korean Society of Clothing and Textiles
    • /
    • v.27 no.9_10
    • /
    • pp.1153-1159
    • /
    • 2003
  • The effects of changing aqueous solution properties by nonionic surfactants on wetting behavior and water retention properies of hydrophobic PET (polyethylene terephthalate) fabric were reported. The aqueous solution properties were diversified by mixing and diluting two nonionic surfactants, i.e., sorbitan monolaurate (Span 20) and polyoxyethylene(20) sorbitan monolaurate (Tween 20). The surface wetting properties ($cos{\theta}$) of PET fabric were greatly improved by adding $10^{-1}g/dl$ Tween 20 and further improved by mixing Span 20 to the system. The water retention properties (W) of PET fabric were also greatly increased by addition of $10^{-1}g/dl$ Tween 20. In diluted surfactant systems, the $cos{\theta}'s$ were increased with decreasing surface tension of aqueous liquids. The ratios of aqueous liquid retained in the pore structure to liquid retention capacity (W/H) were also increased with decreasing surface tension, however, W/H values were dramatically increased right after critical micelle concentration (cmc). The existence of micelles was important for the retention of aqueous liquids in the fabric. The critical surface tension of PET fabric used was found to be 28.7dyne/cm.