• Asian Pacific Journal of Cancer Prevention
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• 제17권2호
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• pp.473-478
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• 2016

Hepatocellular cancer is a very common cause of cancer related deaths worldwide. Only 30-40% of patients present with early-stage disease open to curative treatments, such as resection or transplantation, while others can only undergo local therapies or palliative care. Various trans-arterial approaches have been used for treatment of hepatocellular carcinoma in patients who need a down-staging to liver transplantation, and who are not candidates for transplantation or radiofrequency ablation. Transarterial chemoembolization (TACE), transarterial embolization (TAE), drug-eluting beads, and radioembolization have been used for locoregional control, and have been shown to prolong the overall survival when compared with supportive care. In this review, we discuss patient selection, pre- and post-procedure imaging, techniques, safety, and clinical outcomes related to these therapies. Newer advances with future directions in various fields related to trans-arterial therapies are also discussed.

• 대한가정학회지
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• 제18권2호
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• pp.57-62
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• 1980

This paper is a review of articles selected from Journal of Home economics (1973~1979) with the purpose of studying new direction of home economics in america. Regarding the future of home economics in America. Regarding the future of home economics, the following points were important : 1) Top priorities for future directions in home economics were developed at the 11th Lake Placid Conference and published in "Home Economics New Directions 11" (May 1975). 2) A new definition of home economics by University of Arizona students described the uniqueness of home economics clearly, and in easily understandable terms. 3) A human ecosystem model which depicts human beings existing I interaction with the total environment was found to be a new approch to the concept of home economics. 4) A proposal was made for offering home economics courses to students in professional human service fields. Some of the problems of home economics which need to be solved: 1) The emphasis on specialization in a major field has made home economics just a collection of specialities. 2) The change of the designation "home economics" to other lables by some institutions has brought confusion. 3) Inadequate supply of competent faculty is the cause of inactive home economics research. 4) Teaching sex defined roles is outdated. The above findings give insights to Korean home economics which is faced with a variety of problems in a rapidly changing society.

• 한국실천공학교육학회논문지
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• 제4권1호
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• pp.119-131
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• 2012

본 연구에서는 미국의 그린직업훈련체계 및 정책동향을 연방정부 및 주정부 차원에서 분석하고, 다양한 그린스킬 수요에 대응한 수준별 훈련프로그램체계와 관련 사례들을 조사하였다. 이러한 조사 분석에 기반 하여 우리나라 신성장동력분야의 향후 인력양성 정책방향을 다각도에서 제시하였다. 신성장동력분야는 우리나라의 경쟁력을 제고시킬 고부가가치 산업이지만, 첨단 기술력이 요구되고 투자 위험성이 크며 신속한 시장대응이 필요하기 때문에 적절한 인력공급체계를 갖추기 어려운 실정이다. 따라서 본 연구결과가 정부 인력양성정책의 문제점을 찾고 개선방안을 모색하는데 도움이 될 것으로 기대한다.

• Geomechanics and Engineering
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• 제14권1호
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• pp.51-60
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• 2018

The foundations are classified into shallow and deep, which have important differences: in terms of geometry, the behavior of the soil, its structural functionality, and its constructive systems. The shallow foundations may be of various types according to their function; isolated footings, combined footings, strip footings, and slabs foundation. The isolated footings are of the type rectangular, square and circular. The combined footing may be rectangular, trapezoidal or T-shaped in plan. This paper presents a new model for T-shaped combined footings to obtain the most economical contact surface on the soil (optimal dimensioning) to support an axial load and moment in two directions to each column. The new model considers the soil real pressure, i.e., the pressure varies linearly. The classical model uses the technique of test and error, i.e., a dimension is proposed, and subsequently, the equation of the biaxial bending is used to obtain the stresses acting on each vertex of the T-shaped combined footing, which must meet the conditions following: The minimum stress should be equal or greater than zero, and maximum stress must be equal or less than the allowable capacity that can withstand the soil. To illustrate the validity of the new model, numerical examples are presented to obtain the minimum area of the contact surface on the soil for T-shaped combined footings subjected to an axial load and moments in two directions applied to each column.

• Journal of Computing Science and Engineering
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• 제9권3호
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• pp.119-133
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• 2015

While cloud computing is gaining popularity, diverse security and privacy issues are emerging that hinder the rapid adoption of this new computing paradigm. And the development of defensive solutions is lagging behind. To ensure a secure and trustworthy cloud environment it is essential to identify the limitations of existing solutions and envision directions for future research. In this paper, we have surveyed critical security and privacy challenges in cloud computing, categorized diverse existing solutions, compared their strengths and limitations, and envisioned future research directions.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2006년도 제37회 하계학술대회 논문집 D
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• pp.1830-1831
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• 2006

In this paper, the search is conducted along each of the coordinate directions for finding the minimum. If $e_i$ is the unit vector along the coordinate direction i, we determine the value a, minimizing f(a)= $f(x+ae_i)$, where a is a real number. A move is made to the new point $x+a_ie_i$ at the end of the search along the direction i. In an n dimensional problem, we define the search along all the directions as one stage. The function value at the end of the stage is compared to the value at the beginning of the stage in establishing the convergence. The gradient appears to be zero at point. We can safeguard this by introducing an acceleration step of one additional step along the pattern direction developed by moves along the coordinate directions.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2000년도 ITC-CSCC -2
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• pp.839-842
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• 2000

A new and modified neural network model Is proposed for CT image reconstruction from four projection directions only. The model uses the Resilient Back-Propagation (Rprop) algorithm, which is derived from the original Back-Propagation, for adaptation of its weights. In addition to the error in projection directions of the image being reconstructed, the proposed network makes use of errors in pixels between an image which passed the median filter and the reconstructed one. Improved reconstruction was obtained, and the proposed method was found to be very effective in CT image reconstruction when the given number of projection directions is very limited.

• 한국문헌정보학회지
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• 제35권3호
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• pp.135-150
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• 2001

컨텐츠의 디지털화가 급속히 진화하는 세계적 추세에서 한국학 자료의 체계적 정리와 디지털화는 매우 시급한 과제이다. 본 연구에서는 국내외 한국학 관련 사이트를 바탕으로 각 사이트에서 제공하는 서비스를 조사, 분석하여 문제점을 제시하였다. 또한 이러한 문제점과 분석을 통해 디지털한국학센터의 구축 및 연구 방향을 모색하였다.

• International Journal of Computer Science & Network Security
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• 제22권11호
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• pp.303-307
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• 2022

The purpose of the study is to determine the key aspects of the problems of employment of the population and the directions of their state regulation in war conditions. Employment policy involves a system of measures to create conditions for a more complete use of the potential of labor and business activity of the able-bodied population, linking this activity through taking into account the specifics of group interests with the tasks and guidelines for socio-economic development. But in the conditions of war, this problem acquires a new relevance. For the study, a number of theoretical methods of analysis were used. Based on the results of the study, the key aspects of the problems of employment of the population and the directions of their state regulation in war conditions were identified.

• Toxicological Research
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• 제19권3호
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• pp.247-257
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• 2003

Medicine is undergoing a revolution in the understanding of the mechanisms through which disease processes develop. The advent of genetics and molecular biology to oncology not only is providing surrogate predictors of therapy response and survival which are forming the basis for selection among established treatment options, but is providing targets for new directions in therapy as well. Molecular modification of somatic cells for the purposes of protecting the normal cells from the toxicity of cancer chemotherapy, for the sensitization of the tumor cells to therapy and use of conditionally replicating viral vector have been new directions of cancer treatment which have reached the clinical arena. Advances in molecular pharmacology and vector design summarized in this paper may provide solutions to some of the existing problems in the technology of gene transfer therapy. Continued basic research into the biological basis of human disease, systemic studies of the application of these discoveries to therapy and the improvement of vector for gene delivery all combined may result in advances in this important field of therapy over the next few years.