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CASH FLOW FORECASTING IN CONSTRUCTION PROJECT (건설공사에서의 현금흐름 예측)

  • Park Hyung-Keun
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • autumn
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    • pp.35-41
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    • 2002
  • This research introduces the development of a project-level cash flow forecasting model in construction stage based on the planned earned value and the cost from a general contractors view on a jobsite. Most previous models have been developed to assist contractors in their pre-tendering or planning stage cash flow forecasts. The critical key to cash flow forecasting at the project level is how to build a cash-out model. The basic concept is to use moving weights of cost categories in a budget over project duration. The cost categories are classified to compile resources with almost the same time lags that are based on contracting payment conditions and credit times given by suppliers or venders. For cash-in, net planned monthly-earned values are simply transferred to the cash-in forecast, to be applied there with billing time and retention money. Validation of the model involves applying data from on-going 4 projects in progress for 12 months. Based on the results of the comparative analyses through the simulation of the proposed model and the existing models, the proposed model is more accurate, flexible and simpler than traditional models to the employee of construction jobsite who is not oriented financial knowledge.

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Nutritional Survey for Working Females at a Factory (사업장(事業場) 근로여자(勤勞女子)의 영양실태(營養實態)에 관(關)한 연구(硏究))

  • Cho, Mi-Ja
    • Journal of Nutrition and Health
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    • v.2 no.4
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    • pp.143-153
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    • 1969
  • For the purpose of the better dietary management and to emphasize of importance in nutrition education for 949 woman workers at the dormitory of wig factory in Seoul, the nutritional survey was conducted for seven days from August 13 th to 20 th of 1969. The survey included food and nutrient intakes, physical measurement, clinical findings and biochemical measurement were conducted for the randomly sampled 44 subjects. According to the survey results, their heights was under the standard and the 82% of the total subjects was the age ranges from 16 years to 20 years old. Their daily menu was not planned properly and the concept of 5 basic food groups was not utilized in their menu planning. The balanced meal should be emphasized in this factory. Calories and protein intakes are low compared with the recommended allowance and especially animal protein intake is low. Fat intake is only 8.8 grams for capita per day. Vitamins and minerals intake are also low. Clinical and biochemical survey indicated various vitamin deficiencies and anemia which is mostly due to the iron insufficiency.

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The Assessment of the Landscape Planning Phases by Importance-Performance Analysis - Focused on the Landscape Planning of Development Sites - (중요도-성취도 분석에 의한 경관계획 작성 단계별 평가 - 개발대상지 경관계획을 중심으로 -)

  • Joo, Shin-Ha;Baek, Woon-Hae;Shin, Ji-Hoon;Mok, Jeong-Hun
    • Journal of the Korean Institute of Landscape Architecture
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    • v.36 no.4
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    • pp.74-82
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    • 2008
  • The purpose of this study is to reflect on the results of the assessment and analysis of landscape planning projects according to planning phases in a landscape planning system based on landscape law. An assessment of the importance and performance of landscape planning elements by planning phases was studied by statistically descriptive analysis, variation analysis, statistical t-test and importance-performance analysis. As a result of the evaluation, the performance of existing landscape planning projects is 3.813 and the importance of planning elements is 5.648. This means that in spite of the importance of landscape planning elements, the performance of existing landscape planning projects is not sufficient to cover the importance of landscape planning elements. In addition, 'site landscape survey' and 'landscape design guideline' sections are not sufficient when they are compared to 'landscape concept plan' and 'landscape basic plan' to complete the landscape planning projects required by landscape law. It means also that the landscape survey and landscape design guidelines should be complementarily practiced in order to increase the effectiveness of landscape planning projects. As the research is practiced by survey methods on landscape planning projects which are only new development sites, the results cannot represent all types of landscape planning projects. Nevertheless, the results can be applied to new landscape planning at new development sites or old cities to increase effectiveness.

Survey on Consumer Perceptions of the Sensory Quality Attributes of Apple (사과의 품질결정을 위한 소비자 인식 조사)

  • Cho, Sun-Duk;Kim, Dong-Man;Kim, Gun-Hee
    • Food Science and Preservation
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    • v.15 no.6
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    • pp.810-815
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    • 2008
  • Improving quality is a very important component of maintaining competitiveness of agricultural products. However, evaluation of 'high quality' indicates it is a very abstract concept and independent of some quality attributes, leading to differences in the perception of quality. Thus, there is a pressing need to objectively define 'high quality' and to develop basic technologies for its measurement, for application in the production, storage and distribution of competitive agricultural products. To objectively quantify apple quality, a survey was conducted on consumer preferences and awareness of quality attributes including color, taste, flavor and shape. The survey questionnaire targeted male and female adults (463 persons) ranging in age from 20 to 59 years. The questionnaire was based on purchases made at a wholesale market (50.1%) or a traditional market (18.8%). The majority of purchases were as small packets (62.0%) or as individual pieces (20.5%). Apples of moderate size (fist size, 60.5%) were preferred over small (4.3%) or large (32.6%) apples. The questionnaire provided consumer data on external quality attributes including color, shape and variety. Taste attributes were evaluated in relation to the balance between sour and sweet taste, and flavors peculiar to apples.

Identifying the Subjects of Nutrition Education for Junior and Senior High School Students (중.고등학생 대상 영양교육 현황 분석을 통한 영양교육 주제 도출)

  • Kang Yeo-Hwa;Yang Il-Sun;Kim Hye-Young;Lee Hae-Young
    • Journal of Nutrition and Health
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    • v.37 no.10
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    • pp.938-945
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    • 2004
  • The purposes of this study were to survey the present situation of nutrition education in junior/senior high school, to analyze the difference between the favorite subjects on students and the existing subject done by dietitians on nutrition education, and then to identify the subjects of nutritional education for junior/senior high school students. Self-administered questionnaires were given to dietitians and students and 142 of the 200 dietitians (71.0%) and 479 of the 564 students (84.9%) responded to the questionnaire on the nutritional education. According to the survey results, 76.1 % of school dietitians currently were doing nutrition education for students while the other 23.9% didn't have such education programs even though they recognized the necessity strongly. The target of nutrition education was student rather than parents or teacher generally and the principal measuring method for nutrition education effect was change of plate waste and leftover'. It was found that significant difference in the collector and source of nutritional education information between junior and senior high school dietitians (p< .05) . About ninety-eight percentage of dietitians felt that nutrition education should keep pace with meal service and this meant that almost respondent recognized the necessity of nutrition education for students. Because the most serious one among operational problems of nutrition education program was lack of enough time owing to too many affairs as dietitian, junior and senior high schools should support so that dietitians would share enough time for nutrition education. And also, a gap was existed between actual and favorite subjects on nutrition education. Significant differences existed in the following subjects; 'basic concept of food and nutrition', 'disease and nutrition', 'food culture in the world', 'cooking and culinary art', 'food of the 24 divisions of the year in the lunar calendar', 'food waste and environmental issue', 'food habit and food behavior', 'exercise and nutrition' (p< .001) 'table manner', 'food and individual sanitation', 'recommended dietary allowance' (p < .01) and 'menu planning' (p< .05) .Finally, 24 subjects of nutritional education were selected based on the survey results. These subjects would be expected to be able to contribute the effective and interesting nutrition education program for junior and senior high school students.

Finding Frequent Itemsets based on Open Data Mining in Data Streams (데이터 스트림에서 개방 데이터 마이닝 기반의 빈발항목 탐색)

  • Chang, Joong-Hyuk;Lee, Won-Suk
    • The KIPS Transactions:PartD
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    • v.10D no.3
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    • pp.447-458
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    • 2003
  • The basic assumption of conventional data mining methodology is that the data set of a knowledge discovery process should be fixed and available before the process can proceed. Consequently, this assumption is valid only when the static knowledge embedded in a specific data set is the target of data mining. In addition, a conventional data mining method requires considerable computing time to produce the result of mining from a large data set. Due to these reasons, it is almost impossible to apply the mining method to a realtime analysis task in a data stream where a new transaction is continuously generated and the up-to-dated result of data mining including the newly generated transaction is needed as quickly as possible. In this paper, a new mining concept, open data mining in a data stream, is proposed for this purpose. In open data mining, whenever each transaction is newly generated, the updated mining result of whole transactions including the newly generated transactions is obtained instantly. In order to implement this mechanism efficiently, it is necessary to incorporate the delayed-insertion of newly identified information in recent transactions as well as the pruning of insignificant information in the mining result of past transactions. The proposed algorithm is analyzed through a series of experiments in order to identify the various characteristics of the proposed algorithm.

Legal Institutional Improvement Measures for Revitalization of Change in Building use Officetel to Lifestyle Lodging Industry (오피스텔의 생활형 숙박업 용도변경 활성화를 위한 제도적 개선방안 연구)

  • Ho, Han-Cheol;Song, Ho-Chang
    • The Journal of the Korea Contents Association
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    • v.14 no.1
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    • pp.455-465
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    • 2014
  • This study focuses on some institutional improvement for revitalization of change in building use of officetel to lifestyle lodging industry. First as analysis method, this study establishes a failure factor for change in building use of officetel to lifestyle lodging industry. Second, analyzes an urgent importance to improve it in aspect of a legal institution or management for revitalizing a change of building use of officetel to lifestyle lodging industry. As a result, a failure factor of change in building use from officetel to lifestyle lodging industry is deducted in 4 articles with 13 detailed index. As a result of AHP, 'existing contractor's 100% agreement condition' is the first place, 'commercial /semi-residential area in zoning' is the second place, 'relative cleanup zone' is the fourth place, 'late changes of building use by a complex licensing procedure' is the fifth place, 'operational risk of consignment' is the sixth place, 'deficiency in publicity of related institution' is the eighth place, 'lack of concept in lifestyle lodging industry of building code' is the ninth place, 'basic constructional condition such as parking lot sewage and fire protection system' is the tenth plce, 'installation of ventilation facility' is the eleventh place, 'installation of bathroom and shower room in each room' is the twelfth place, 'installation of kitchen facility' is the thirteenth place.

Integrated Broiler Production System - As a Means of Stabilizing Whole Industry with Particular Reference to U.S. Experience - (브로일러계열화 생산조직에 관한 고찰 - 미국의 예를 중심으로 -)

  • 박영인
    • Korean Journal of Poultry Science
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    • v.6 no.2
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    • pp.91-102
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    • 1979
  • The basic problem of the broiler industry is that of fluctuating prices, mainly thanks to unstable supply of and inelastic demand for products as usually indicated as a peculiarity of agricultural commodities. This particularly brings the producer to a great economic risk, because he has to sell products under the condition of pure competition, whereas others from whom he has to buy deal under the condition of oligopoly or even monopoly. Therefore, producers economic position is generally placed in the worst comparing others dealing with, which results in unbalanced economic status of elements involved in broiler operation and further obstruction of industry development as a whole. A certain type of business coordination to overcome such a problem should be measured in order to improve the efficiency of entire operation and thus assure the balanced industry development. The concept of the economic integration developed in modern business system had been adapted to U.S. poultry industry which became common later around the world as a means of stabilizing producers price and whole industry as well. There are two main typos of integration; horizontal and vertical The former refers to the general grouping of similar business units, eg. a hatchery tying with other hatchery, while the latter refers to the knitting together of two or more stages of economic activities, eg. tying together among units of hatching, fled milling, production, processing and marketing. By having the industry integrated, risk and uncertainty involved in various stages of operation could be diversified. The typo of integrating contract between producers and integrators include the share of profits, flat fee payment, feed conversion payment and salary basis. In the U.S., extensive changes in production, processing, and marketing during the last few decades have changed the thicken broiler industry from one of small, widely scattered farms to one that is largo, concentrated and efficient. More than 99 percent of all broilers produced are grown under contract and by integrated firms which vary in size of operation and complexity. About 84 percent of all production is concentrated in 10 States. Some of the other factors ;hat contributed to these choses arc costs, energy use, prices, processing, marketing and demand. No integrated broiler production system has yet been applied in Korea's poultry industry, thus all stages all broiler operation run independently seeking for its own profit. Consequently, producers price fluctuate very widely around the year even more than 50 percent in a few months. This also leads to disadvantages of material supplies, processors and distributors and enforce the industry unstable. The current economic environment in Korea seems that the time for broiler integration comes and as an ideal integrator, feed millers, food processors and producers group may be considered.

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Research on the Plan of Oriental Medical Participation in the Industrial Health (산업보건에의 한의학적 참여방안에 관한 연구)

  • Lee E.K.;Chong M.S.;Chun E.J.;Kim S.T.;Kang S.H.;Lee S.K.;Han J.M.;Kim S.C.;Yu T.S.;Jeung J.Y.;Song Y.S.;Lee K.N.
    • Journal of Society of Preventive Korean Medicine
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    • v.3 no.2
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    • pp.55-77
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    • 1999
  • Oriental Medical Service established foundation that Oriental medical clinic can take part in industrial health service by being specified industrial calamity medical treatment organ, but research which develope program that Oriental Medical Service approach on the occupational disease and industrial health only dealt in the Western Medical System was insufficient. So we studied on theoretical foundation and basic bearing about .program of oriental medical health examination in the workplace, it is based on explanation and assessment reformed by western medicine. We reached the conclusion as follows, 1. We must reconsider the concept that mind of Oriental medicine is preventive medicine, and assess positively result of social medicine. 2. Importance of industrial health is being enlarged in the category of health care. 3. Western medical health in including industrial health have faced much problems at this time, we can search by alternative proposal grafting on Oriental Medicine. 4. Oriental medical participation in the industrial health have various benefits at side satisfaction of workers, effect of prevention, efficiency of cost, and increasing rate of medical treatment and return to workplace of workers with industrial calamity. 5. We must consider Oriental Medical Health Examination as one way of health management program of workers, not as formality. 6. The advantage of Oriental Medical Health Examination can increase ability of individual health management in preventive medicine and the production in workers' health management.

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A Study on Forecasting for Ubiquitous Space with Analysis of Digital Technology Trends (디지털기술의 동향분석을 통한 유비쿼터스 공간의 미래예측에 관한 연구)

  • In, Chi-Ho;Yi, Soo-Hyun
    • Archives of design research
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    • v.19 no.5 s.67
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    • pp.323-334
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    • 2006
  • The continuous development of digital technology has actualized ubiquitous computing, and the environment of human life has come to face changes. Prediction of the future so that human life may be prepared can be very important. A number of predictions of ubiquitous space are presented, ranging from related professional research to mass media, However, proper analyses and understanding are required to understand ubiquitous space and apply it to design. This study seeks to understand ubiquitous space through analysis of the trend in digital technology from a new perspective, to research cases, and predict the future of ubiquitous space. Human, object, and environment have been set as basic factors as the subjects smoothly exchanges various types of information in the physical space, and the trend in digital technology is analyzed. From a human-oriented perspective, the background and development trend of digital technology has been analyzed under the theme of interaction and interlace. From an object-oriented perspective, an analysis was unfolded under the theme of products' evolvement from radios to robots. From an environment-focused perspective, an analysis has been carried out under the theme of situation recognition, intrinsic factors, and integration and connectivity. By applying the analytic results, the types of studies that predict the future of ubiquitous space and generate concepts have been classified and analyzed into three different types of studies for experiment, industry, and public. In this manner, ubiquitous space has been forecasted. This study seeks a systematic analysis of the understanding of the trends in digital technology and employs a case study of ubiquitous space based on systematic analysis. In consideration of all these, this study is expected to contribute to concept generation and development by designers.

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