• Environmental and Resource Economics Review
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• v.16 no.1
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• pp.99-127
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• 2007

When the margin between available capacity and demand is thin in a liberalized electricity market, prices rise steeply and system reliability is threatened. The principal response to these circumstances is often an assumption that price spikes and electricity shortages are the result of a failure to build sufficient new supplying facilities. It is, of course, often the case that additional investments in generation and network facilities would improve reliability, and such investments are often needed. But focusing on additional generation and transmission facilities for restoring balance to the grid overlooks the essential fact that reliability is a function of the relationship between supply and demand, imposing unnecessary costs on electric system. When the relationship is out of balance, the search for solutions must consider not only investments supply-side resources but also cost-effective demand-side resources such as accelerated load management, efficiency measures, and price-responsive load programs. Integrating demand resources into electricity markets can add enormous value to the electric system, widening the capacity margin, lowering costs and enhancing system reliability at the same time. This paper studies several challenges now facing electricity markets: demand-side management-especially, economic effects of demand response, potential reliability problems, market and system operation, CBP market improvements and so on. The paper concludes with a series of policy recommendations in five areas: (i) The Effects of efficient improvement to incorporate demand responses and demand-side resources into modem electricity markets, (ii) Fosteing price based demand response and (iii) improving incentive based demand response, (iv) strengthen demand response analysis and valuation, (v) integrating demand response into resource planning and adopting enabling technologies.

• Journal of Agricultural Extension & Community Development
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• v.9 no.2
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• pp.233-245
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• 2002

The demand for green tourism has increased in Korea. The increasing demand for green tourism caused is by reduction of working hours and longing for rural life. Moreover, many view amenity regarded as a good resource of green tourism. Amenity is however an abstract and complex idea. Even though many people were interested in amenity, the movement or practice of amenity in Korea was still as its in infancy stage. This paper was an exploratory study of amenity and paving the way for further studies on amenity in Korea. The objectives of this study were 1) to explore the philosophical background, origin and history, and classification of amenity, 2) and decide on future course of using amenity for rural viability.

• Journal of Korean Academy of Nursing
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• v.28 no.4
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• pp.1027-1035
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• 1998

The purpose of this study is to develop the first domestic professional hospice educational program. We investigated the present condition of Korean hospice education and analyzed the prerequisite need for a dedicated hospice course in the professional education process. Research was conducted between June and November 1996 for nursing professors teaching at each nursing education institute to find out how much hospice is being discussed and by whom, in which course it is being discussed, and also to find out the contents that needed to be included in the professional education process. From a total of 49 colleges(29 three year colleges, 20 four year colleges) out of 99, 162 nursing professors replied, the collection rate was 49.5%. The conclusions are as follows ; 1. The present condition of the hospice nursing education. 1) Whether hospice is included in the education program. \circled1 89.65% of 3 year colleges and 90% of 4 year colleges included hospice education in their education program. \circled2 In graduate studies three schools included hospice in their program and three schools expressed their plans to include hospice education 2) Hospice related education were commonly discussed in adult nursing(26.3%), fundamental nursing(22.8%), and psychiatric nursing(20.2%). In 3 year colleges its commonly discussed in the first and second year and in 4 year colleges it is taught in the second and third year. 3) Hospice related theory/practical education hours were averages of 6.5/7.0 hrs in 3 year colleges and 14.2/11.3 hrs in 4 year colleges. 4) The majority of professors in charge of hospice education were in the following order adult nursing, psychiatric nursing, and fundamental nursing. 5) The courses that are thought to be adequate to manage hospice related education were adult nursing(29.3%), community health nursing(21.7%) and the desired method of education was the method currently being used (36.5%). 2. The demand for hospice nursing education. 1) Over 70% demanded professional hospice education program, the highest demand was for the value and meaning of life followed by the role and qualification of the hospice team and the mental maintenance of a dying patient. 25 categories showed over 90% demand. 2) The highest demand was for the value and meaning of life (98.2%) and the lowest demand were for danjeon breathing(71.0%)and acupuncture(71.0%). 3) Other contents that need to be discussed in the professional hospice education program were hospice nursing, the attitude and reaction of death, bereavement care, and the prospects of hospice.

• Journal of Institute of Control, Robotics and Systems
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• v.6 no.8
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• pp.623-628
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• 2000

Video-on-demand system in which users can request any video through the network at any time is made possible by rapid increase in network bandwidth and capacity of the media server. However true video-on-demand system cannot support all requests since bandwidth requirement is still too demanding. Therefore efficient bandwidth reduction algorithm is necessary. both the piggybacking method and the batching method are novel solutions that can provide more logical number of streams than the physical system can support. Of course each of them has its pros and cons. hence piggybacking with batching-by-size can take advantage of both the schemes. Some parameters such as the size of batch and the size of the catch-up window should be adjusted and order to maximize the bandwidth reduction for piggybacking with batching-by-size method. One of the most important parameters is decided optimally in this paper. Simulation shows that the optimized parameter can achieve considerable reductionand consequently remarkable enhancement in performance.

• International journal of advanced smart convergence
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• v.1 no.2
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• pp.59-63
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• 2012

The mVoIP service is the technology which focuses on the wireless data service as the IP network having the transmission rate of 100 Mbps classes on the high-speed middle of movement through the WiFi, WiBro and 3G mobile radio communication network, and etc. and is developed. Since 2010, the mVoIP (mobile VoIP) service shows the rapid growth due to 4G-LTE service seriously disclosed from July with the Smart phone and 2,011 it begins to be rapidly popularized. In this research, additionally the mVoIP service industry activation plan is presented with the trends of technology development including the chip-set/module/terminal, etc. based upon local and foreign market trend searchlight through the market demand analysis. The mVoIP service downloads App to the mobile apparatus and or can provide the service as the software through the WiFi network. Therefore, the change which is large in the products development aspect is to be have no. Expected to is being provided as the added service in the case of 4G-LTE as a matter of course, the service deployment where it is based on the market principle and demand needs is needed.

• Journal of Korean Society of Transportation
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• v.25 no.4
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• pp.99-108
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• 2007

This paper presents an elastic demand stochastic user equilibrium traffic assignment that could not be easily tackled. The elastic demand coupled with a travel performance function is known to converge to a supply-demand equilibrium, where a stochastic user equilibrium (SUE) is obtained. SUE is the state in which all equivalent path costs are equal, and thus no user can reduce his perceived travel cost. The elastic demand SUE traffic assignment can be formulated based on a dynamic system, which is a means of describing how one state develops into another state over the course of time. Traditionally it has been used for control engineering, but it is also useful for transportation problems in that it can describe time-variant traffic movements. Through the Lyapunov Function Theorem, the author proves that the model has a stable solution and confirms it with a numerical example.

• English Language & Literature Teaching
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• v.17 no.4
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• pp.75-95
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• 2011

The purpose of this study was to evaluate a group activity, reciprocal peer tutoring (RPT), in order to investigate advantages and challenges of RPT in promoting cooperative and collaborative learning environment for EFL University reading instruction. The participants in this study were 89 students taking an English reading course at a Korean university. RPT is a learning strategy whereby learners help each other and learn by teaching. This program was supported by a Vygotskyan perspective which assumes that learners gain mastery and develop cognitive skills through social interaction with more proficient others and their environment. This study relied particularly on participant perceptions through questionnaire survey and Anonymous Online class Report of the course. This study showed various advantages for tutors such as learning through teaching and becoming more autonomous and responsible for their own learning. Non-threatening and highly motivating learning atmosphere are parts of benefits for tutees. Other advantages for tutees included improved level of academic self-confidence, and motivation. This study also revealed several drawbacks associated with the problem of inaccuracy in students' production and students' demand for more direct teacher role. (182 words).

• Journal of the Korean Society for Library and Information Science
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• v.46 no.3
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• pp.79-102
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• 2012

Higher educational institutions face an increasing demand for developing a renewed set of competencies of college students who will live in the knowledge-based society. However, relatively little is known about what constitutes the core competencies that college students need to develop and how we can improve them. Nine categories of core competencies required for college graduates were drawn from the previous research and examples of core competencies developed by other institutions. They are analytic thinking skills, problem-solving skills, communicating skills, collaborative working skills, and etc. A reading guidance course for strengthening core competencies, developed based on the teaching and learning methods was adapted to students of LIS for one semester. Implications of these and related findings are discussed.

• Journal of Family Resource Management and Policy Review
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• v.18 no.2
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• pp.37-54
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• 2014

This study investigates fathers' demands for fathering education. Data from eight married, working men was collected through in-depth interviews. The interviews were intended to examine their father-role, working life, balance between work and family, and demand for the educational programs for fathers with particular regard to the themes, contents, and arrangement strategies they desire of the programs. The results show that fathers have a high demand for learning detailed methods of childrearing such as how to effectively sooth and play with their child(ren). Further, it was discovered that job flexibility is the major variable that determines a man's satisfaction with his parental role. Various information about possible arrangements of fathering education was collected from the interview data, such as desired themes, number of sessions, size of the educational program, volunteer role of participants, and focus of the course (e.g., many indicated interest in focusing on gender equality). This study reveals that greater detail, more effective contents, and efficient managerial strategies are required in fathering education in order to impart broader perspectives and knowledge about how to enhance the relationship between father and child(ren).

• Culinary science and hospitality research
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• v.3
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• pp.23-40
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• 1997

This study has been made on the basis of the theoretical model of Beeker's time allocation concerning housewives' advance into society-- a primary cause for enlargint the scope of our food service market and developing the food service industry as a whole. The primary purpose of this study is to clarify the close relationship between housewives' activities in the course of allocating their time and the demand for the food service through Beeker's theory of“Total income and Total price”, analyzing the information obtained through the questionaires sent to the housewives in metropolitan areas. The result of the questionaires shows that the demand of food service is closely related to women's market activities. Yet it has become clear that the demand for food service correlates with housewives' allocation of time in terms of sharing profits. As a result, it is true that the increase in housewives' income per hour has brought about the increase of the term of employment and the decrease in their cooking time, thus greatly increasing the opportunities to dine out. In order words, the increase of housewives' income and the decrease in their cooking time have come to make a great contribution to shortening the time needed to take care of family matters while increasing the demand for eating out, or food service. And it is also clear that the common practice to dine out is derived from the reduction in our domestic duties, indicating the choice of social division of labour, but is needs to be noted that the gradual increase in women's income is sure to have exerted a considerable influence on this practice of eating out.