• Journal of the Korea Institute of Building Construction
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• v.10 no.1
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• pp.81-89
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• 2010

Since 2004, the government has changedthe cost estimate system to one of an actual cost basis in order to calculate the optimum construction cost by reflecting changes in circumstance on the construction site in a timely manner. Currently, this is being applied to public construction work forover a billion won of actual cost data in estimation by contract unit cost. However, directly reflecting actual cost, which for large-sized construction work was originally an average unit cost, to a small building, entails the application of a low discount rate for the cost of materials, labor, etc. and therefore can frequently give rise to cases in which the actual cost of work performed exceeds the contract sum, which in turn causes problems such as decreased revenues, bad effectson business operation, productivity, etc. Therefore, to apply actual cost to small-sized construction work (less than a billion won), there should be a plan to modify unit cost in a manner that can reflect project scale, etc. in order to resolve the problem of unit cost application of actual cost to small-building construction projects. The unit cost modification model for proper actual construction cost in small-scale construction projects developed by this study will help to increase the relevant productivity and proper gain, preventing the aggravation of business operations. Organizations placing orders are also expected to be able to secure a more realistic construction cost in arranging the budget.

• Journal of Cadastre & Land InformatiX
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• v.50 no.1
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• pp.47-62
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• 2020

As demands and applications of spatial information increase, different aspects of quality management have been raised as an important issue. This study suggests a quality management method for consumer-oriented spatial information, providing the consumer satisfaction. As opposed to the demands mentioned, less attention has been paid on the quality for the spatial information. So far, most of spatial information producers have kept their own independent quality management system and standard. Because of this unconscious response, it has been difficult to reflect the consumer's various and flexible demands from the silo structure of the quality management systems and regulations. The explosive increase of spatial information products creates quality-related problems such as limited time and budget for the consumer-oriented quality management. To solve these problems this study suggests to use a minimum number of the basic spatial information products which can guarantee better qualities when other products are combined. Because each of the spatial information product can include several other sub-products inside, it can have intrinsic characteristics such as geographic accuracy relationships between the products when combined and a hierarchical structure in each product in terms of the quality management mentioned. To prove the usability of the model, a case of the National Spatial Data Infrastructure Center is used because the Center collects and distributes an enormous amount of spatial information to the public and private sector.

• Journal of Families and Better Life
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• v.28 no.6
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• pp.35-46
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• 2010

The purpose of the study was to identify the potential buyers' consciousness of single-family housing to provide useful data to help future single-family housing supplies in Ulsan. The study selected residents in Ulsan, who were over twenty and had an interest in living in a single-family housing. A survey was conducted from September 11, 2008 to September 25, 2008. The sample consisted of 364 persons who are currently live in Ulsan metropolitan area. The results are as following. About two thirds of the sample had the desire to live in a single-family housing. Moving into a single-family housing had financial preparation as the greatest issue. When moving into a single-family housing, the convenience of the residential district was the greatest consideration, whether or not it is a green environment, pollution level, etc. The potential buyers valued environment-friendly features and also had a very strong desire to own their own house. Many of them wanted to design and build their own single-family housing within a budget of 100-200 million KRW. In terms of the location, there was a higher preference for the riverside or lakeside rural areas outside the city. In terms of size, the preference was less than $330m^2$, which includes $99-132m^2$ for residential. When considering a single-family housing the direction was the most important feature, along with eco-friendly and safer materials and equipments. When building the single-family housing the potential buyers considered the community spaces first with a preference for having three bedrooms and two bathrooms. For the exterior, they wanted a unique shape of roof and there were high preferences for brown and beige colors. In terms of housing complexes, the potential buyers preferred individual unit types over complexes. If they preferred housing complexes, they wanted the cluster form complex with about 10-30 units. The complex also required a park-like setting with a guard system, which shows that convenience and safety were the most important features. In terms of complex management, they considered environmental management as the most important feature. The potential buyers were willing to pay belw 200,000 KRW, which showed their desire to minimize financial burdens.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.26 no.3
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• pp.83-100
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• 2015

This paper aims to survey the supply status and demand of the scientific & technological information among the 1,059 small enterprises demanding the support in Busan, Ulsan and Gyeongsangnam-do which have been supported by the Branch of KISTI and to propose the approaches to improve the scientific & technological information system. As the results of this research, Busan, Ulsan and Gyeongsangnam-do have very poor business and R&D environment to the extent that 96.3% of businesses was small business (medium business only for 3.7%) and 31% of total small & medium-cized businesses has less than 10 R&D workers. Small & medium-sized businesses which have demanded the information to KISTI account for only 0.2% in average for 3 years. The information demand types are market trend (26.8%), industrial property right (22.1%), business proposal (19.9%), item exploration (16.8%) and quality certification (8.4%). The supplied informations include scientific and technological data survey, market survey, translation and information application seminar. The business achievements from the information supply include 379 cases in technological development improvement and launch of products, 88 cases in technology certifications and 414 cases in patents and utility design application and registration. By the analysis results, the small and medium-sized businesses have difficulties in using R&D information by themselves. Thus, it's proposed to establish the science and technology information center in southeastern region and develop the information advisors specialized in local specialty industry categories. It's also proposed to expand the manpower and budget of KISTI concerning the information support for small & medium-sized businesses.

• Research in Community and Public Health Nursing
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• v.6 no.2
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• pp.259-274
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• 1995

The study is to grasp the problems related to operation of Maternity clinic of public health centers in seoul and needs for public health of community in relation to consumers and providers in order to improve efficiency of community public health for mothers and children. Four pregnancy woman, who receive medical care at the maternity clinic of M public health centers in seoul and understand the purpose of this study, and one nurse who works at the were the objects of this field study. Participating observation and intensive interviews were conducted to collect data. All of them were performed as necessary from time to time since December, 1994, and not during a specific period. Through an data analysis in the order of sector analysis and classification analysis, the data were classified into specific patterns and the results are the following; 1. All of the subjects were using both private hospitals and public clinics, but managing activities prior to delivery were not carried out in accordence with theories for those activities. 2. The subjects showed two types of response to utilizing maternity clinic. they answered that the advantages of the clinic were 'short waiting time for medical treatment', 'medical treatment by female doctors' and 'economical benefit.' Meanwhile, they gave negative response to the problems of 'non-implementation of delivery' 'uncleanness and insufficient facilities', 'limited time of treatment', 'lack of expertise' and 'want of public health education for materity.' 3. Problems related to operation of maternity clinic were 'lack of experts', 'irrational facility structure' and 'absolutely lack budget'. In terms of the status of managing the subjects, 'programs only aimed at attaining the central-government-assigned objects' and 'limited management before and after delivery by non-implementing delivery' were pointed out to be problems. Regarding public health education before delivery and PR relations, 'superficial public health education for maternity' and 'absence of PR programs' were named. In planning and evaluation, 'absence of autonomous planning and evaluation by the clinic itself' was a major problem in operating the clinic. 4. 'Substantial health education and PR', 'supplementation of facilities and eqipment', 'development' and supply of demanded service by the subjects', 'implementation of autonomous programs', and 'reinforcement of supplementary education' were presented as alternatives for efficient opration of maternity clinics.

• Journal of the Korea Convergence Society
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• v.8 no.6
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• pp.55-64
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• 2017

The research study focuses to analyze the result of the military personnel medical examination and identify the medical conditions of military individuals. The results of this study are as follows. First of all, for the general features of research subjects, there are 60 people who are 39-year-old or less and 60 people in the age of 40-year-old or over of the total 120 research subjects. Secondly, as a result of canonical correlation analysis in between their ages/body mass index(BMI) and the outcomes of medical examination, it derived 3 canonical functions. 2 of the functions out of the 3 demonstrated statistical significance. The research has conjured meaningful results which include that the holistic diagnosis and treatment system for the military officers needs additional enhancement. Also the medical examination is in desperate need of expansion in test items and the associated budget planning should be evaluated in government organizations related to welfare policy.

• Journal of Intelligence and Information Systems
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• v.15 no.2
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• pp.15-31
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• 2009

The next generation IT environment is expected to be an open computing environment based on Grid computing technologies, which allow users to access to any type of computing resources through networks. The open computing environment has benefits in aspects of resource utilization, collaboration, flexibility and cost reduction. Due to the variation in performance of open computing resources, however, resource allocation simply based on users' budget and time constraints often fails to meet the Service Level Agreement(SLA). This paper proposes the Mean-Absolute Deviation(MAD) portfolio optimization approach, in which service brokers consider the uncertainty of performance of resources, and compose resource portfolios that minimize the uncertainty. In order to investigate the effect of this approach, we simulate an open computing environment with varying uncertainty levels, users' constraints, and brokers' optimization strategies. The simulation result concludes threefolds. First, the MAD portfolio optimization improves the success ratio of delivering the required performance to users. Second, the success ratio depends on the accuracy in predicting the variability of performance. Thirdly, the measured variability can also help service brokers expand their service to cost-critical users by discounting the access cost of open computing resources.

• 대한공업교육학회지
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• v.33 no.1
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• pp.44-66
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• 2008

As the way to intensify vocational education, the places to learn and work merge into one educational system and teaching-learning methods that were pointed at lecturer level are adjusted to learners level. However, the current education environment of vocational highschool doesn't keep up with a new teaching and learning paradigm due to the lack of government-level support and the lecturer level education as well. In this paper, we present a novel learner-leading e-Learning teaching & learning contents framework that intensifying self leading education. In this framework, we concern the ability of self leading, space perception and lesson preparation, preferences of multimedia, scholastic aptitude level and achievement level of students in vocational highschool. Moreover, with following the protocol of the suggested model, we generate a new e-learning contents applying to the subject "Introduction to industry". Especially, to perform better quality of contents, we have survey the whole content of the subject and assorted part of it that would work best with learner-leading e-Learning teaching and learning contents. As we tentatively apply e-learning contents to students in vocational highschool, 79% of them replied that contents brought advantages to get school accomplishment, whereas 19% of students answered in negative that contents wasn't helpful than we've expected. Therefore, the statistical results probe that the e-learning contents we proposed show positive effect, and we analyzed the reasons that deteriorate the effects of contents as shortage of budget and copyright limitation.

• Korean Journal of Construction Engineering and Management
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• v.21 no.4
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• pp.38-49
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• 2020

As the quality of life has been improving, people are getting higher interest and higher expectation for safety. However, the accident rate at the construction site is still high. Therefore, it is urgent to secure the safety at the construction work. Due to the nature of the construction industry, construction sites are directly exposed to the external environment. The possibility of accident occurrence is increased due to various factors such as the always variable processes, the diversity of manpower input, the increase in vulnerable class, and the danger of construction equipment..Particularly, the disasters occurring at the small- or medium-sized construction sites (budget ≤ 12 billion KRW) account for 88.9% of the total disasters at construction sites (73.4% for casualty). It was due to the lack of management caused by the absence of supervisors and insufficient safety measures. Moreover, it is difficult for the small- or medium-sized construction sites to apply basic safety measures such as safety education and safety facility installation by themselves in order to prevent disasters because they don't have sufficient safety organizations. It is because they have relatively less safety personnel and poorer technology system than large-sized construction sites. Therefore, in order to reduce accidents in construction, it is necessary to prevent accidents at the small- and medium-sized construction sites. From this point of view, the objectives of this study were to identify the key risk items causing accidents frequently by analyzing the accidents at construction sites and identifying problems associated with safety management, and to secure the safety at the small- and medium-sized construction sites.

• Journal of agriculture & life science
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• v.46 no.1
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• pp.195-206
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• 2012

This study is about an analysis of surplus solar energy by important greenhouse types as well as setting temperature different by using Typical Meteorological Year data which was secured in order to provide basic data for designing an optimum thermal storage system to accumulate surplus solar energy generating in greenhouses during the daytime. Depending on the setting temperatures of $15{\sim}19^{\circ}C$ for greenhouse heating during day and night, surplus heat amounts were varied at the rate of about $0.2{\sim}6.9%/4^{\circ}C$ with some variations according to the greenhouse types and regions. On the other hand, the variations of supplemental heat requirements were about $29.7{\sim}50.0%/4^{\circ}C$. Depending on the setting temperatures for greenhouse ventilations(low $25{\sim}29^{\circ}C$ and high $27{\sim}31^{\circ}C$), surplus heat amounts were varied at the rate of about $-9.9{\sim}-35.6%/4^{\circ}C$ in auto-type greenhouse. But in single-type greenhouses, they were about $-5.1{\sim}-13.4%/4^{\circ}C$. There were not significant changes in supplemental heat amounts depending on setting temperatures of ventilation for both greenhouse types and regions.