• Journal of KIBIM
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• v.8 no.2
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• pp.29-40
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• 2018

Recently, the free-form buildings are continuously increasing in the world. However, due to the shortage of experience and technology in the project of the free-form buildings, problems such as increase of construction cost, increase of air and deterioration of construction quality are occurring. In this study, data on the 27 free-form projects in Korea and abroad using digital fabrication were collected through the journals, reports, articles, and websites of the institutes and case studies were conducted based on the collected data. Based on the following case analysis, we conducted evaluation of case data analysis based on the knowledge domain specified in PMBOK. Evaluation of case data analysis shows that the application of digital fabrication is divided into positive and negative effects for each knowledge area in the free-form building project. Using the results of the analysis, we can confirm the knowledge field showing the positive effect on the free-form building project by using digital fabrication. However, the data scale of the project using the digital fabrication is not realized at present and research is insufficient. In Korea, a small number of specialists were interviewed and verified because experts do not exist much in korea. Therefore, this study is expected to suggest the necessity of applying digital fabrication in the free-form building projects in the construction industry.

• Journal of Acupuncture Research
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• v.21 no.5
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• pp.249-256
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• 2004

Objectives : Wilson's disease is an autosomal recessive abnormality in the hepatic excretion of copper that results in toxic accumulation of the metal in liver, brain, and other organs. The purpose of this case study is to show a case with Wilson's disease treated with acupuncture therapy. Methods : We experienced a 17 year old male patient with a Wilson's disease whose main symptoms are neurological symptoms, such as spasticity, quadripleia and dysphagia. The patient was treated with acupuncture therapy for 3 weeks. Results : Spasticity was assessed by the modified Ashworth scale in an every week. 1. Lt. elbow, wrist and ankle joint improved Gr.III to Gr.II. 2. Rt. each joints and Lt. knee joint seemed to improve a little but no grade changed. Conclusions : This study is just one case and the period of acupuncture therapy is short, which make this case study less sufficient to decide the effect of acupuncture therapy. However, in this case study, acupuncture therapy seems somewhat effective to neurological symptoms of Wilson's disease, such as spasticity and quadriplegia. We suggest that oriental medicine should be studied to cure Wilson's disease from now on.

• Journal of Environmental Impact Assessment
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• v.9 no.3
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• pp.203-214
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• 2000

Health risk assessment is applied to streamlining LCA(Life Cycle Assessment) using Monte carlo simulation for probabilistic/stochastic exposure and risk distribution analysis caused by data variability and uncertainty. A case study was carried out to find benefits of this application. BTC(Benzene, Trichloroethylene, Carbon tetrachloride mixture alias) personal exposure cases were assumed as production worker(in workplace), manager(in office) and business man(outdoor). These cases were different from occupational retention time and exposure concentration for BTC consumption pattern. The result of cancer risk in these 3 scenario cases were estimated as $1.72E-4{\pm}1.2E+0$(production worker; case A), $9.62E-5{\pm}1.44E-5$(manger; case B), $6.90E-5{\pm}1.16E+0$(business man; case C), respectively. Portions of over acceptable risk 1.00E-4(assumed standard) were 99.85%, 38.89% and 0.61%, respectively. Estimated BTC risk was log-normal pattern, but some of distributions did not have any formal patterns. Except first impact factor(BTC emission quantity), sensitivity analysis showed that main effective factor was retention time in their occupational exposure sites. This case study is a good example to cover that LCA with probabilistic risk analysis tool can supply various significant information such as statistical distribution including personal/environmental exposure level, daily time activity pattern and individual susceptibility. Further research is needed for investigating real data of these input variables and personal exposure concentration and application of this study methodology.

• The Journal of the Korea Contents Association
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• v.19 no.1
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• pp.278-292
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• 2019

The purpose of this study is to provide a suggestion to improve speciality and job performance of social work case management using importance-performance-analysis(IPA). A quantitative research design was used and data were collected from 209 social workers who are in charge of case manager job at Ulsan metropolitan area. Study participants were asked the recognition of importance-job competence and need for supervision-experience of social work case management job description on the NCS(9 competency units, 33 competency units). Descriptive analysis and IPA were performed. This study found the need for intensified job competence of 'building external operating systems' and 'development of resource linkage systems'. Also, it is necessary to provide intensive supervision for 'building an external and internal operating system.' Based on the results, future direction of intensified job performance for socla work case management was discussed.

• Journal of the Korean housing association
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• v.16 no.4
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• pp.29-35
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• 2005

The present study was compared and discussed with focus on the evaluation for the Importance Level of Design Elements and the Case Study Designing with respect to Environmental-Friendly Apartment Housing. It was examined that there were some differences between the result of Importance Level and the suggested details from Case Study. From the result of Importance Level, evaluation was highly given on the planned principles regarding effective utilization of landuse, ecological principle and reflection of varities, while from the result of Case Study on the planned principles regarding health of residents and amenity. Accordingly the present development method and the fundamental understanding on Environmental -Fiendly Apartment housing should be changed on the basis of the results as above.

• Proceedings of the KSR Conference
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• 2011.10a
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• pp.1624-1630
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• 2011

Currently the train operating environment to affect track irregularity is changed rapidly such as speed-up, linear improvement and rolling stack upgrade. The recent track maintenance criteria of track irregularity was quoted from past Japan's, and the needs of revision of criteria are increased because of the rapid change in train operating environment. In case of enhance the track irregularity criteria, it secure driving safety and riding comfort but maintenance cost are increase. And also decrease ballast durability by frequent corrective work. In case of mitigate the criteria, it decrease driving safety and riding comfort, but save the maintenance cost. The study for enacting rational criteria did not carry out so far. In this study, survey the domestic and international track irregularity and case study for track irregularity inspection results and maintenance history for guideline of enacting irregularity criteria study.

• Journal of the Ergonomics Society of Korea
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• v.31 no.1
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• pp.197-202
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• 2012

Objective: The aim of this study is to introduce activities for job stress management in shipbuilding industry. Background: Recently, workers are exposed many job stress like workload, interpersonal conflict while management condition of company changes day by day. Particularly, shipbuilding industry has poor environment which aggravating the stress to the workers. So managing job stress may be more important. Method: The method of this study is to investigate preventive actions of job stress in "S" shipbuilding company. Results: This study through case of "S" shipbuilding company introduce activities of prevention of job stress including identification of level of job stress, managing of psychological clinic, training of worker and manager. Conclusion: In order to manage the job stress in the workplace, 1) The total management system based on the concern of the management in the workplace has to be constructed. 2) Computerized system for operation of total management system has to be constructed. 3) New employees need training for Job Stress. Application: Through this case study, I hope to help prevention activities of job stress in the workplace.

• Journal of Institute of Control, Robotics and Systems
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• v.13 no.11
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• pp.1128-1136
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• 2007

This paper presents an application study of a model predictive control based commercial package PCTP to real chemical processes. The first case study concerns a product purity control of a splitter process which distillates styrene from undesired component ethyl-benzene produced from ethyl-benzene dehydrogenation reaction. The second case study is about a temperature control of ethyl-benzene dehydrogenation reactor and an excess oxygen control of the fired heater. Optimum control structure for MPC application is developed for each case study. The application results show a significant improvement in control performance and stability.

• Journal of the Korea Institute of Building Construction
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• v.2 no.2
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• pp.157-164
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• 2002

In this study, attempts to analyze the case study of production design were carried out through: 1) exploration of the factors influencing the interface between architectural and production design phases; 2)application of precast technologies. Building design and construction planning in Japan may be characterized by ample use of Production Design which extends over the whole projects phases. Taking a composite construction system for apartment buildings which allow for alternative combination of different technologies as a case study object, three projects have been chosen to analyze actual process of determining product sub-system and their specification. And the expectancies of this paper are that it can be used as efficient data for improvement of system to systematize Constructability(Buildability) in korea.

• Korean Management Science Review
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• v.15 no.2
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• pp.91-108
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• 1998

Recently ERP(Enterprise Resource Planning) package has been on of important issues in developing information systems in many Korean companies. The main objectives of this study are to analyse the case of implementing ERP system in Samsung Display Devices Co. which is rated to be successful, and to derive significant implications for effective ERP implementation. First, this study focused on showing the detailed roadmap of performing ERP implementation project which largely consists of 5 stages(planning and organizing, visioning. process redesign and mapping, testing and arrangement, and installation and roll-out to overseas subsidiaries), and explaining key activities in each stage. Second, the performance of this project was evaluated on the basis of both process-centered critieria and result-centered ones. Finally, this study intended to discuss and explicate the bottlenecks and the critical success factors in implementing this project. The findings of this case study are thought not only to be useful as a practical guideline in carrying out ERP implementation project but also to provide significant basis for constructing the theoretical framework of effective ERP implementation.