• Journal of Advanced Marine Engineering and Technology
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• 제33권6호
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• pp.843-851
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• 2009

Much work has already been done to control and regulate the worldwide problems caused by climate change, particularly the issues on greenhouse gas (GHG) emissions. Carbon dioxide ($CO_2$), having the highest form of concentration among GHGs composed around 1.0 billion tons of emission, and comprises about 98% of the total emissions from the shipping industry. Korean trade mainly rely on the sea transportation. Korean ship tonnages that was brought about by shipbuilders all over the country, continues to grow annually due to the prevailing demands on goods or material supplies and depicting only a small part of the global maritime activity. Nowadays, new build ships coming from the Korean Shipbuilders are being optimized by hull, structure and appendages design, The operational capability of the propulsion and auxiliary machineries in its maximum capacity to achieve the highest possible efficiencies for energy and onboard power use to mitigate $CO_2$ emissions are continually being done through the help of research and development. In this paper, the energy efficiency design index and anboard power capacity of Korean new build ships have been analyzed with response to data collected by ship types, and its respective fuel consumption in relation to $CO_2$ emission results. In response to climate change convention outcome proposals, the best way for the new build ships to become energy efficient is by lowering its operational speed thru adopting the state of the art diesel propulsion engines, patronizing the best sailing practice to lower the transportation cost on the different sea trade routes also helps in $CO_2$ mitigation.

• 대한전자공학회논문지SD
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• 제38권4호
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• pp.251-265
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• 2001

반도체 소자가 소형화 되면서 소자의 신뢰성을 유지하고 전력 소모를 줄이기 위해 기가-비트 DRAM의 동작 전압은 1.5V 이하로 줄어들 것으로 기대된다. 따라서 기가-비트 DRAM을 구현하기 위해 저전압 회로 설계 기술이 요구된다. 이 연구에서는 지금까지 발표된 저전압 DRAM 회로 설계 기술에 대한 조사결과를 기술하였고, 기가-비트 DRAM을 위해 4가지 종류의 저전압 회로 설계 기술을 새로이 제안하였다. 이 4가지 저전압 회로 설계 기술은 subthreshold 누설 전류를 줄이는 계층적 negative-voltage word-line 구동기, two-phase VBB(Back-Bias Voltage) 발생기, two-phase VPP(Boosted Voltage) 발생기와 밴드갭 기준전압 발생기에 대한 것인데, 이에 대한 테스트 칩의 측정 결과와 SPICE 시뮬레이션 결과를 제시하였다.

• 디자인학연구
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• 16호
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• pp.17-25
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• 1996

, \l!ernatives in multi dimensional decision prohlems generally possess numerous attrihutes by which they can be describ('d and compared, The ('\';dllation factors include all attributes that have Ic\'(']s specified by quantitative and qualitativc objectil'l'S, Howev'('f since qualitative factors arc difficul! to quantify as num('ral estimates, these factors have tended to bl' ignored without regard for their importance to human contrnl. In this study, the author adapted :j ('va]uation methods with critrria which have qualitative and qualitative attributes: the Intuitive Evaluation ~1cthods the Accumulativc' Evaluation Model the Benchmarking Evaluation Methods, and studied the corrC'iation between them, The results show that Ill(' :j Mrthods have reciprocal relationships under reliability (r=O, (XX)]] In order to removl' obstacles of desi!;n ev'aluation ( lots of timl' l'llnsumption, constr;lints of placc" difficulties of hu!;!' data procc'ssin!;), it is necessary to be developed a new ('va]uation syst('rn which could prov'idc' effective rat in!; of desi!;n v'alm's 10 make value judw'rnents, , \l!ernatives in multi dimensional decision prohlems generally possess numerous attrihutes by which they can be describ('d and compared, The ('\';dllation factors include all attributes that have Ic\'(']s specified by quantitative and qualitativc objectil'l'S, Howev'('f since qualitative factors arc difficul! to quantify as num('ral estimates, these factors have tended to bl' ignored without regard for their importance to human contrnl. In this study, the author adapted :j ('va]uation methods with critrria which have qualitative and qualitative attributes: the Intuitive Evaluation ~1cthods the Accumulativc' Evaluation Model the Benchmarking Evaluation Methods, and studied the corrC'iation between them, The results show that Ill(' :j Mrthods have reciprocal relationships under reliability (r=O, (XX)]] In order to removl' obstacles of desi!;n ev'aluation ( lots of timl' l'llnsumption, constr;lints of placc" difficulties of hu!;!' data procc'ssin!;), it is necessary to be developed a new ('va]uation syst('rn which could prov'idc' effective rat in!; of desi!;n v'alm's 10 make value judw'rnents,alm's 10 make value judw'rnents,

• 디지털콘텐츠학회 논문지
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• 제15권2호
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• pp.155-165
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• 2014

본 연구는 기업의 경영자 교육 효율 재고를 위해 학습태도 모형을 실증하는 연구이다. 이를 위해 연구자는 긍정심리학을 기반으로 분류된 학습자의 성격강점과 학습 친화력 강화와 학습태도 개선의 인과 관계를 검증하였다. 최근 기업들은 온 오프라인 경영자 재교육을 통해 기업의 생산성을 높이려고 시도하고 있다. 연구자는 디자인과 경영분야 교과목을 접목하여 학습태도에 미치는 영향요인을 확인하고, 경영자 교육에 함의를 논의하고자 하였다. 분석결과에 따르면, 첫째, 온라인과 오프라인 수업은 공히 학습자 성격강점이 친화력강화에 정(+)의 영향을 미치는 것으로 확인되었다. 둘째, 친화력강화도 온라인과 오프라인 수업학습태도 개선에 정(+)의 영향을 미치는 것으로 확인되었다. 셋째, 온라인과 오프라인 수업은 모두 학습자 성격강점이 학습태도 개선에 직접적으로 유의미한 영향을 주지 못하였으며, 따라서 친화력 강화 변인이 매개변수 역할을 함을 확인할 수 있었다.

• Wind and Structures
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• 제10권3호
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• pp.287-300
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• 2007

Wind action is a factor of fundamental importance in the structural design of light or slender constructions. Codes for structural design usually assume that the incident mean wind velocity is parallel to the ground, which constitutes a valid simplification for frequent winds caused by meteorological phenomena such as Extratropical Storms (EPS) or Tropical Storms. Wind effects due to other phenomena, such as thunderstorms, and its combination with EPS winds in so-called squall lines, are simply neglected. In this paper a model that describes the three-dimensional wind velocity field originated from a downburst in a thunderstorm (TS) is proposed. The model is based on a semi empirical representation of an axially-symmetrical flow line pattern that describes a stationary field, modulated by a function that accounts for the evolution of the wind velocity with time. The model allows the generation of a spatially and temporally variable velocity field, which also includes a fluctuating component of the velocity. All parameters employed in the model are related to meteorological variables, which are susceptible of statistical assessment. A background wind is also considered, in order to account for the translational velocity of the thunderstorm, normally due to local wind conditions. When the translation of the TS is caused by an EPS, a squall line is produced, causing the highest wind velocities associated with TS events. The resulting vertical velocity profiles were also studied and compared with existing models, such as the profiles proposed by Vicroy, et al. (1992) and Wood and Kwok (1998). The present model predicts horizontal velocity profiles that depend on the distance to the storm center, effect not considered by previous models, although the various proposals are globally compatible. The model can be applied in any region of interest, once the relevant meteorological variables are known, to simulate the excitation due to TS winds in the design of transmission lines, long-span crossings, cable-stayed bridges, towers or similar structures.

• 복식문화연구
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• 제28권4호
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• pp.508-526
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• 2020

This study has established a fashion illustration education plan using the contour drawing that fosters observational ability and enables creative drawing. This study developed two illustration curriculum proposals consisting of 15 weeks, combining literature and case studies. The researchers organized a step-by-step teaching plan that utilizes contour drawing according to the three stages of fashion illustration classes: foundation courses, general courses, and intensive courses. When the contour drawing is used at the beginning stage of the foundation courses of fashion illustration, it can be used as a technique to reduce the fear of students about practical skills, induce interest in illustration, and cultivate observation ability about objects. In general process, it is combined with various tools and coloring materials to strengthen expression power, and it is possible to produce detailed expressions and illustrations about human body and clothing. In intensive courses, it is expanded to the production of creative works with new aesthetics through digital techniques and mixed materials. As such, the contour drawing is expanded in various ways according to the learning contents and goals of each step, and is flexibly adjusted according to the learning content. Contour drawing has the effect of acquiring observation and expression ability, and it is analyzed as a technique that enables the production of creative illustration of students.

• 디지털산업정보학회논문지
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• 제11권3호
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• pp.99-112
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• 2015

Digital imaging technology has advanced beyond the limits of the multimedia industry IT convergence, and to develop a complex industry, particularly in the field of object recognition, face smart-phones associated with various Application technology are being actively researched. Recently, face recognition technology is evolving into an intelligent object recognition through image recognition technology, detection technology, the detection object recognition through image recognition processing techniques applied technology is applied to the IP camera through the 3D image object recognition technology Face Recognition been actively studied. In this paper, we first look at the essential human factor, technical factors and trends about the technology of the human object recognition based SPFACS(Smile Progress Facial Action Coding System)study measures the smile detection technology recognizes multi-faceted object recognition. Study Method: 1)Human cognitive skills necessary to analyze the 3D object imaging system was designed. 2)3D object recognition, face detection parameter identification and optimal measurement method using the AAM algorithm inside the proposals and 3)Face recognition objects (Face recognition Technology) to apply the result to the recognition of the person's teeth area detecting expression recognition demonstrated by the effect of extracting the feature points.

• 유통과학연구
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• 제12권10호
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• pp.29-35
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• 2014

Purpose - This study highlights the inter-dependence between business and society. Various business strategies like Corporate Philanthropy and CSR (Corporate Social Responsibility) are introduced to establish better relationship between business and society. Research Design, Data, and Methodology - This study presents a research model clarifying the role of Creating Shared Value (CSV) and its influence on overall corporate performance. Further, we reveal the mediating role of corporate trust generated by various mechanisms of economic and social values, leading to enhanced corporate performance. Results - The proposed research model addresses five different proposals indicating that, by incorporating CSV approaches, organizations can create both business and social values. These values help positively influence corporate trust, ultimately facilitating improvements in overall corporate performance. Conclusions - CSV is currently in its early stage; it is difficult to gather meaningful data to measure its performance. However, this study seeks to connect CSV with other important factors such as corporate trust. The proposed model can be a starting point for a more empirical and formal conceptualization of CSV along with other important links.

• 한국통신학회논문지
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• 제19권4호
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• pp.633-638
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• 1994

고정 길이의 패킷 전송 구조로 이루어진 ATM은 B-ISDN을 실현할 수 있는 방식으로 주목되고 있으며, 패킷 길이가 고정되어 있기 때문에 사용자에게 다양한 서비스의 제공의 가능할 수 있다. 본 논문에서는 CBR 트래픽과 버스티 트래픽의 두가지 트래픽원이 유한 크기의 버퍼를 갖는 ATM 다중화기에 가해진 경우의 큐잉 시스템을 분석한다. 다중화기의 성능 측정을 위한 간단하고 반복적인 셀 손실률의 계산식을 유도하고 수치 계산 예를 통해 셀 손실률의 특성을 검토한다. 이러한 연구의 결과들은 ATM 다중화 시스템의 버퍼 설정에 관한 문제와 성능 분석에 도움이 될 수 있을 것이다.

• 한국조경학회지
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• 제31권5호
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• pp.121-129
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• 2003

The purpose of this research was to discuss pending taste of the Journal of the Korean Institute of Landscape Architecture(KILA). Two subjects were discussed; one was the role of KILA as a supporter of landscape research, and the other was the role of KILA as a safeguard for its members. The results of this research were as follows. To support landscape research, several proposals were suggested. It is necessary for the development of landscape architecture for us to share some pages of our journal for essays which deal with current landscape issues, in order to introduce advanced overseas landscape trends or landscape techniques. For the field of landscape construction and landscape management, it is necessary to prepare a column of technical notes which introduce new techniques of landscape construction and management. For the field of landscape design, a larger seperate volume must be prepared with color printing. It is an efficient way to cooperate with other institutions that have the same member as KILA. To safeguard KILA members, it is important to maintain our status as a registered journal of Korea Research Foundation and to publish an international journal. For prospective young researchers, publication of an english journal is under consultation with the Japanese Institution of Landscape Architecture and the Chinese Institution of Landscape Architecture. The publication of an international land-scape journal to be recorded in the ISI journal in the near future will promote the research abilities of KILA members.