• Journal of Korean Medicine Rehabilitation
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• v.21 no.4
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• pp.77-86
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• 2011

Objectives: This study aims to evaluate domestic clinical studies related to the exercise program targeting farmers. Methods: Five Korean databases were seamed for prospective clinical trials of exercise program targeting farmers from 2001 to August, 2011. Only studies conducted in Korean language were searched. Results: Thirteen clinical studies were included among 3374 studies searched. Six were observational studies, four were non-randomized controlled trials, and three were randomized controlled trials. All of included studies reported favorable effects of exercise group compared to baseline of controlled group. Conclusions: We found various mistake in the applications of statistical methodologies in the studies of exercise program targeting farmers. It is necessary for more randomized controlled trials to evaluate effect of exercise program target farmers.

• Journal of the Ergonomics Society of Korea
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• v.32 no.5
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• pp.459-467
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• 2013

Objective: The aim of this study is to review the studies on job rotation with various points of view and to classify the studies considering the approach methods. Background: Various work interventions were carried in order to prevent the work-related musculoskeletal disorders(WMSDs) and job rotation was considered as one of the simple and effective methods. Method: Previous studies were systematically collected with the combination of keywords such as job, task, rotation, allocation, line balancing, etc. Collected studies were classified into three categories: field study, laboratory study and optimization approach study. Results: Field studies showed that most studies focused on the evaluation of the factors causing the musculoskeletal disorder. Moreover, the effect of job rotation could be hard to identify because it required a long-period close observation. Laboratory studies covered only simple aspects of tasks or movements. Optimization approach studies showed the systematic approach to establish the job rotation scheme though many limitation and assumptions were adopted. Conclusion: This study collected and classified the previous studies on job rotation and presented the different approaches across various research areas. Application: The results of this study could help the practitioner and ergonomist how to establish the job rotation scheme.

• Journal of the Korea Safety Management & Science
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• v.6 no.3
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• pp.303-309
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• 2004

Many system devices for fluoroscopic and general X-ray studies in diagnostic radiographic system have been being changed from analog mode to digital mode. In addition, among diagnostic imaging and radiologic examinations, fluoroscopic studies that requires functional diagnosis is being widely used. The video recording method of fluoroscopic studies has been useful in functional image diagnosis and dynamic image observation, but the utility of its image quality is being reduced because of limitation in setting play segments of the video player, inconvenience of play, difficulties in preserving reproduced images, the change of image quality, etc. In order to complement these shortages, it is necessary to facilitate access to patient diagnosis information such as storing, editing and sharing functional diagnosis images in response to the trend of the digitalization of digital radiographic & fluoroscopic system(DRF). Thus this study designed and implemented a device of storing functional dynamic images real time using a computer rather than existing video recording, aiming at contribution to functional image diagnosis.

• Journal of Korean Medical Ki-Gong Academy
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• v.7 no.1
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• pp.1-29
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• 2003

Research studies of Qigong therapy for cure for the past 20 years were reviewed from three different categories: clinical study on human patients, in-vitro study of abnormal cells, and in-vivo study of abnormal cell with Qigong therapy, in an attempt to understand the role Qigong therapy plays in many kinds of disease. There is a lot of evidence suggesting that Qigong therapy has an inhibitory effect on abnormal cell growth, both in vitro and in vivo studies, as well as in clinical observation (often there was room for improvement in these studies and some studies require replication in order to verify their findings). Qigong therapy is an area that is often neglected by mainstream medicine and research, and it should be seriously examined and considered as an important supplement to conventional treatment.

• The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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• v.29 no.1
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• pp.131-144
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• 2016

Objective : This study is to review the effect of herbal medicines on treatment of Allergic Rhinitis in animal models reported in Korean domestic journals.Methods : The Databases(NDSL, Koreantk, OASIS, KISS) are searched with terms as Allergic Rhinitis. among them, only animal study reports were reviewed. Animal model, intervention, and observation methods of measuring indicators were extracted.Results : 27 articles were reviewed. All studies used OVA to induce Allergic Rhinitis. 7 studies used simple herbal medicines, 20 studies used complex herbal medicines, To evaluate the effect of the Herbal medicines, 23 studies used immunological examination, 18 studies used histological examination, 16 studies used hematologic examination, 3 studies used macroscopy The evidences of 5 studies is insufficient to show that Herbal medicines are effective for treatment of Allergic Rhinitis.

• The Journal of Korean Academy of Prosthodontics
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• v.8 no.1
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• pp.42-47
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• 1968

The purpose of this study was to determine the gingival response to the various restorations for 3 weeks, 5 weeks and 8 weeks respectively after they had been inserted in 36 tooth of 3 dogs. The histopathological observation was also performed to evaluate the effect of the various restorations on gingival tissue. They included gold, copper and nickel-chrome alloy. The following findings were obtained. 1. The gingivae adjacent to the well adapted and polished restorations and their margins with a level of gingival crest were grossly and histopathologically found no specific changes. 2. The gingive adjacent to the ill fitting and unpolished restorations and their margins with subgingival extension of 1 to 1.5mm were not grossly found any changes. 3. There were no obvious difference in gingival response among the various alloys in histopathological observation.

• Journal of Families and Better Life
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• v.10 no.1 s.19
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• pp.1-13
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• 1992

The purpose of this study was to validate the Elementary HOME(Home Observation for Measurement of the Environment) with korean elementary children. Subjects were 536 mothers 1st-5th graders in the elementary schools in the Seoul. Pearson's r, pearcentage(%), phi($\phi$/), Cronbach's $\alpha$/ ware conducted for the statistical analysis. The major findings were as follows. 1) The item pass rate(percentage) were ranged 16~98. 2) The discriminant coefficients($\phi$/) of the item were ranged 0.06~0.58. 3) The reliability coefficients of the scale were that the split-falf was 0.84, and Cronbach's $\alpha$/ was 0.88. Considering the length of the scale, these reliability estimates appear to be at an acceptable level 4) The factor analysis and the correlations between HOME and SES indices and children's school schievement to test construct validity were conducted to test construct validity. Eight factors were extracted from the factor analysis and coefficients(r) were ranged 0.16~0.45 and -0.08~0.37.

• Journal of the Korean Society of Manufacturing Technology Engineers
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• v.9 no.5
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• pp.144-149
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• 2000

The demands for robotic and automatic system are continually increasing in manufacturing fields. There have been many studies to monitor and predict the system, but they have mainly focused upon measuring cutting force, and current of motor spindle, and upon using acoustic sensor, etc. In this study, time series sequence of cutting force was acquired by taking advantage of piezoelectric type tool dynamometer. Radial cutting force was obtained from it and was available for useful observation data. The parameter was estimated using PAA(parameter adaptation algorithm) from observation data. ARMA(auto regressive moving average) model was selected for system model and second order was decided according to parameter estimation. Uncorrelation test was also carried out to verify convergence of parameter.

• Journal of Advanced Research in Ocean Engineering
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• v.1 no.3
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• pp.186-197
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• 2015

In summer 2010, field measurements of local ice loads were carried out in the Arctic Ocean using the Korean first icebreaking research vessel, ARAON. In some previous studies by the authors, several investigations for the data measured at 2010 including the relationship between the measuring points and ice loads, the possibility for observation of higher ice load and the relationship between the ship speed and ice loads were reported. During 10 days in August 2013, new field measurements were performed in similar waters of the Arctic Ocean using the same vessel, ARAON. The aim of this study is to investigate the statistical properties of 2013 measurements and compare results by two periods.

• Atmosphere
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• v.14 no.3
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• pp.41-54
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• 2004

In this study, a brief overview on a WMO/WWRP program - The Observing System Research and Predictability Experiment (THORPEX) and discussions on perspectives and potential benefits of Asian countries are provided. THORPEX is aimed at accelerating improvements in the accuracy of 1 to 14-day high-impact weather forecasts with research objectives of: 1) predictability and dynamical processes; 2) observing systems; 3) data assimilation and observing strategies; and 4) societal and economic applications. Direct benefits of Asian countries from THORPEX include improvement of: 1) forecast skills in global models, which exerts positive impact on mesoscale forecasts; 2) typhoon forecasts through dropwindsonde observations; and 3) forecast skills for high-impact weather systems via increased observations in neighboring countries. Various indirect benefits for scientific researches are also discussed. Extensive adaptive observation studies are recommended for all high-impact weather systems coming into the Korean peninsula, and enhancement of observations in the highly sensitive regions for the forecast error growth is required to improve forecast skills in the peninsula, possibly through international collaborations with neighboring countries.