• Title/Summary/Keyword: cost evaluation items

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Evaluation of the mental and physical health status of university woman students using the Cornell Medical Index (CMI에 의한 여대생의 건강문제 평가)

  • 모경빈
    • Journal of Korean Academy of Nursing
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    • v.12 no.2
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    • pp.45-56
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    • 1982
  • This study was carried out during the month of september 1982 to analyse and evaluate of the mental and physical health status of University woman students using the Cornell Medical index. The purpose of the study was to provide basic data required by the University health program for planning related health need of woman students. The study sample is consisted of 486 students living in the dormitory enrolled for the fall semester 1982 in a Women's University in Seoul. The instrument used for the collection of data was an abridged version of a modified Cornell Medical Index. The questionarre includes 35 items related to physical health complaints and 22 items related to mental health complaints. The data was treated by a computer(SPSS) using one way analysis, and The Fishers' ratio and Chi-square test at the 5% level were also adjusted for the test for statistical significance. The interpretation of this study is limited due to the sample which was restricted to one University and not randomly selected. The followings are the results of the foundings so far achieved. 1. More than 60% of the Woman students have physical health problems in digestive system, cardiovascular system, nervous system, respiratory system, and musculo skeletal system in the order named. 2. More than 50% of the woman students have mental problems because of anger inadequacy sensitivity tension, depression and anxiety in the order named. 3. There were no statistically significant differences among woman students in mental and physical health problems caused by year groups, major groups, growing regional groups. 4. There were significant differences caused by the number of brothers and sisters in the aspect of appealing mental and physical problems. 5. There were significant differences caused by the rate of satisfaction in the living cost, and the lower the rate of the satisfaction in the living cost goes, the higher tile frequency rate of the appealing mental and physical health problems is. 6. There were significant differences caused by the rate of satisfaction of the living in the aspect of appealing mental and physical health problems. There fore, the lower the rate of the satisfaction of the living goes, the higher the frequency rate of the appealing mental and physical health problems is, and the more the complaints are, the more frequent the appealing of the problems of digestive system, circulating system and fatigue is.

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An Experimental Study on the Construction Performances and Economical Evaluation of the Self-compacting Concrete by Cementitious Materials (결합재에 따른 자기충전 콘크리트의 시공성 및 경제성 평가에 관한 실험적 연구)

  • Kwon, Yeong-Ho
    • Journal of the Korea Concrete Institute
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    • v.29 no.3
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    • pp.315-322
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    • 2017
  • The purpose of this study is to investigate experimentally the construction performances and economical evaluation of the self-compacting concrete in actual site work after selecting the optimum mix proportions according to cementitious materials. Slag cement type of 46.5% slag powder and belite cement of 51.4% $C_2S$ content, lime stone powder as binders are selected for site experiment including water cement ratio. Also, test items for optimum mix proportion are as followings ; (1) Slump flow, 500 mm reaching time, V-type flowing time and U-box height (2) Setting time, bleeding, shortening depth and adiabatic temperature rising (3) Mixing time in plant (4) Concrete quantity and cost, quality control in actual concrete work. As test results, (4) Optimum water-cement ratio ; Slag cement type 41.0% and belite cement 51.0% (2) Setting time and bleeding finishing time of slag cement are faster, bleeding content of slag cement is higher, shortening depth and adiabatic temperature rising of belite cement type are lower (3) Optimum mixing time in batcher plant is 75 seconds and concrete productive capacity is about $100{\sim}110m^3/hr$. (4) Belite cement type is lower than slag cement type in material cost 14.0%, and concrete quantity in actual concreting work save 3.3% in case of belite cement type. Therefore, self-compacting concrete of belite cement type is definitely superior to that of slag cement type in various test items without compressive strength development.

An Efficient Estimation of Place Brand Image Power Based on Text Mining Technology (텍스트마이닝 기반의 효율적인 장소 브랜드 이미지 강도 측정 방법)

  • Choi, Sukjae;Jeon, Jongshik;Subrata, Biswas;Kwon, Ohbyung
    • Journal of Intelligence and Information Systems
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    • v.21 no.2
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    • pp.113-129
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    • 2015
  • Location branding is a very important income making activity, by giving special meanings to a specific location while producing identity and communal value which are based around the understanding of a place's location branding concept methodology. Many other areas, such as marketing, architecture, and city construction, exert an influence creating an impressive brand image. A place brand which shows great recognition to both native people of S. Korea and foreigners creates significant economic effects. There has been research on creating a strategically and detailed place brand image, and the representative research has been carried out by Anholt who surveyed two million people from 50 different countries. However, the investigation, including survey research, required a great deal of effort from the workforce and required significant expense. As a result, there is a need to make more affordable, objective and effective research methods. The purpose of this paper is to find a way to measure the intensity of the image of the brand objective and at a low cost through text mining purposes. The proposed method extracts the keyword and the factors constructing the location brand image from the related web documents. In this way, we can measure the brand image intensity of the specific location. The performance of the proposed methodology was verified through comparison with Anholt's 50 city image consistency index ranking around the world. Four methods are applied to the test. First, RNADOM method artificially ranks the cities included in the experiment. HUMAN method firstly makes a questionnaire and selects 9 volunteers who are well acquainted with brand management and at the same time cities to evaluate. Then they are requested to rank the cities and compared with the Anholt's evaluation results. TM method applies the proposed method to evaluate the cities with all evaluation criteria. TM-LEARN, which is the extended method of TM, selects significant evaluation items from the items in every criterion. Then the method evaluates the cities with all selected evaluation criteria. RMSE is used to as a metric to compare the evaluation results. Experimental results suggested by this paper's methodology are as follows: Firstly, compared to the evaluation method that targets ordinary people, this method appeared to be more accurate. Secondly, compared to the traditional survey method, the time and the cost are much less because in this research we used automated means. Thirdly, this proposed methodology is very timely because it can be evaluated from time to time. Fourthly, compared to Anholt's method which evaluated only for an already specified city, this proposed methodology is applicable to any location. Finally, this proposed methodology has a relatively high objectivity because our research was conducted based on open source data. As a result, our city image evaluation text mining approach has found validity in terms of accuracy, cost-effectiveness, timeliness, scalability, and reliability. The proposed method provides managers with clear guidelines regarding brand management in public and private sectors. As public sectors such as local officers, the proposed method could be used to formulate strategies and enhance the image of their places in an efficient manner. Rather than conducting heavy questionnaires, the local officers could monitor the current place image very shortly a priori, than may make decisions to go over the formal place image test only if the evaluation results from the proposed method are not ordinary no matter what the results indicate opportunity or threat to the place. Moreover, with co-using the morphological analysis, extracting meaningful facets of place brand from text, sentiment analysis and more with the proposed method, marketing strategy planners or civil engineering professionals may obtain deeper and more abundant insights for better place rand images. In the future, a prototype system will be implemented to show the feasibility of the idea proposed in this paper.

Analysis of IT Service Quality Elements Using Text Sentiment Analysis (텍스트 감정분석을 이용한 IT 서비스 품질요소 분석)

  • Kim, Hong Sam;Kim, Chong Su
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.43 no.4
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    • pp.33-40
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    • 2020
  • In order to satisfy customers, it is important to identify the quality elements that affect customers' satisfaction. The Kano model has been widely used in identifying multi-dimensional quality attributes in this purpose. However, the model suffers from various shortcomings and limitations, especially those related to survey practices such as the data amount, reply attitude and cost. In this research, a model based on the text sentiment analysis is proposed, which aims to substitute the survey-based data gathering process of Kano models with sentiment analysis. In this model, from the set of opinion text, quality elements for the research are extracted using the morpheme analysis. The opinions' polarity attributes are evaluated using text sentiment analysis, and those polarity text items are transformed into equivalent Kano survey questions. Replies for the transformed survey questions are generated based on the total score of the original data. Then, the question-reply set is analyzed using both the original Kano evaluation method and the satisfaction index method. The proposed research model has been tested using a large amount of data of public IT service project evaluations. The result shows that it can replace the existing practice and it promises advantages in terms of quality and cost of data gathering. The authors hope that the proposed model of this research may serve as a new quality analysis model for a wide range of areas.

Operating model for A Value-For-Money evaluation of BTL Projects for Educational Facilities (교육시설 BTL 사업의 투자가치 평가를 위한 운영비 모형 구축)

  • Son, Ki-Young;Kim, Jang-Young;Kook, Dong-Hoon;Kim, Sun-Kuk
    • Korean Journal of Construction Engineering and Management
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    • v.7 no.6
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    • pp.141-150
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    • 2006
  • As the law on the private sector investment in social infrastructure was amended in January of 2005, the government is aggressively promoting BTL projects but many trials and errors and problems are occurring. Especially, the Value-For-Money evaluation conducted by the responsible agencies to judge the appropriateness of the project found there was a conspicuous difference between the computed cost and the final contract sum. Accordingly, this study is aimed to grasp the problems in the current Value-For-Money evaluation and to improve it in order to proceed with BTL projects efficiently. To achieve this, through a relative comparison to the final contract sum, a clear standard for the items of Value-For-Money evaluation was presented and thus, a model that can ensure accuracy in computing the Value-For-Money was established so that a delay in negotiations can be avoided. If the Value-For-Money evaluation established in this study is used in assessing the appropriateness of unit prices for BTL projects for education facilities, a reasonable result can be expected to be drawn in selection and negotiations with contractors, and maintenance and Post-Operation-Evaluation(POE) of education facilities as well.

A Study on Competency Evaluation Checklist of Design Phase VE Team (설계VE팀의 역량평가 체크리스트에 관한 연구)

  • Seo, Ha-Na;Lee, Hak-Ki
    • Korean Journal of Construction Engineering and Management
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    • v.9 no.4
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    • pp.154-162
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    • 2008
  • Ministry of construction and transportation has been enforcing extensionally design phase VE(Value Engineering) to the construction costing more than 10 billion won, an importance of design phase VE accordingly is raising to get rid of a waste of cost and noneffective factors previously in construction projects. Although there are legal supports and technical effects, an effect about an introduction of design phase VE can not be applied properly because of several problems at the process. So, in this study, present competency factors of design phase VE to highly raise the output through organizing an effective team at the beginning stage of design phase VE. Find out 29 competency factors through characteristics of design VE team for the check list, classify by team knowledge, team work skill, and team attitude. Get an efficiency regarding importance and find out Competency Evaluation items of design VE team, present a Competency Evaluation plan for indicating an objective standard to Competency Evaluation by measuring relative importance as to each Competency Evaluation item.

A Study on the Shape of Efficient Retroreflective Articles (고효율 재귀 반사체 형상에 관한 연구)

  • So, Bum-Sik;Jung, Yoong-Ho;Lee, Deug-Woo
    • Journal of the Korean Society for Precision Engineering
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    • v.19 no.2
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    • pp.160-170
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    • 2002
  • Retroreflective article is different from other reflecting objects as it returns the incidence ray to the near of its source. This characteristic makes the retroreflectors have many applications in reflective highway signs, reflective vests, and other safety-relaxed items. These articles may have various shapes. However, the quantitative evaluation of performance for the best shape of retroreflector needs much time and cost for manufacturing prototypes and for performance experiments. In this work, we have developed a program for simulating the trace of ray entered into a retroreflective element, in order to determine the optimal shape of retro-reflection. We have also proposed new performance criterion of retroreflective articles, which can confide the range of incidence angle, instead of the criterion with the merely retroreflective strength.

An Analytic Network Process(ANP) Study on the Evaluation of Software Development Methods for Maintainability (유지보수성 목표하의 소프트웨어 개발방법 평가에 관한 실증연구 : ANP 기법을 중심으로)

  • Yoon, Min-Suk;Lee, Young;Sung, Sam-Kyung
    • Journal of the Korean Operations Research and Management Science Society
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    • v.24 no.4
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    • pp.141-156
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    • 1999
  • Recently expanded and enhanced software system inevitably demands serious managerial considerations on its maintenance cost. This study proposes a systematic and thorough assessment model for software development methods to the end of maintainability, incorporation ISO 9126 quality standards-based criteria. The Analytic Network Process (ANP) is employed in our model to find the effect of any dependency among the items of the criteria and the alternative methods. This study then applies the model empirically in order to evaluate the efficacies of the Structured Method and the Objected-Oriented Method. At first, this study performs the test on the existence and direction of any dependency under the three types of assumptions, and then determines the relative dominance of the two methods.

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Estimation of a Product Replacement Ratio During the Warranty Period for a Warranty Analysis (보증분석을 위한 품질보증 기간 중 제품 교체율 추정 사례 연구)

  • Ahn, Hae-Il
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.35 no.2
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    • pp.71-79
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    • 2012
  • In this paper, an evaluation of a product replacement ratio of irreparable items to the normally working ones is performed with a view to a warranty analysis. It is demonstrated that the replacement ratio during the warranty period can be estimated from the field data collected during the period of operation, and one can provide the management with a useful information regarding the appropriateness for the warranty period, which is vital to the product marketing strategy. Although warranty data usually take the form of multiply right censored interval data, the conventional reliability analysis method seems to be good enough as in this case. More sophisticated method such as warranty cost analysis and 2-dimensional warranty analysis is yet desired.

Fatigue Durability Analysis and Evaluation for Straighted Type Exhaust System of Automobile (자동차용 직선화 배기시스템의 피로내구 해석 및 평가)

  • Park Sejong;Suh Hocheol
    • Transactions of the Korean Society of Automotive Engineers
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    • v.13 no.1
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    • pp.147-152
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    • 2005
  • The exhaust system of automobile is faced with random or spectrum types of fatigue loads during usage life and so needs to be closely estimated for quality and performance to have enough certainty on design endurance lift during preliminary design process. Structural operation conditions, operation load history, property of material and manufacturing process etc. should be considered by performing experiment approach. Using the software program for predicting fatigue life quickly and exactly in preliminary design stage saves plenty of time and cost generated by fatigue tests. In this paper, fatigue life prediction was performed on the basis of fatigue analysis using MSC/FATIGUE and load data from field test and the life of development items was estimated and compared through the results.