• Proceedings of the Korean Society for Agricultural Machinery Conference
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• 1993.10a
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• pp.896-905
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• 1993

Thin-layers of wheat and barley are dried at near-ambient temperatures(3.5$^{\circ}C$ -5$0^{\circ}C$) in order to obtain the intrinsic drying data. The well established apparatus was modified to enable it to record all the sample weight data in still air by using a purpose -built automatically controlled sliding valve. The air could be diverted in less than 0.5seconds and a 7 second period was required to attain a steady weight reading. With this apparatus, very smooth drying curves were obtained. The data of sample weight , drying temperature and dew point temperature wee recorded continuously . The drying process was terminated when the moisture content change in 24 hours was less than 0.004 d.b. This was achieved by drying a sample for about a week . The final points were recorded as the dynamic equilibrium moisture content(EMC). The drying data were than fitted to the exponential Newton model and the dynamic EMC data were fitted to the Modified-Chung-Pfost Model . All the fitted parameters are given and comparison is made with previous published data. The comparisons who that the current drying constants are lower than the previous data, the dynamic EMC data obtained for wheat and barely agree with the previous data. The results show that to obtain the drying constant in the exponential Newton model, adequate drying time is necessary.

• Journal of Korean Society of Environmental Engineers
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• v.22 no.3
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• pp.505-510
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• 2000

In this study the effects of pre-chlorination on the coagulation of water which contain Microcystis aeruginosa. were investigated on the laboratory scale. We prepared the sample of $10^5cell/mL$ Microcystis aeruginosa and then applied 0.2, 1.0, 10 mg-Cl/L chlorine on the sample After reaction period(1 minute and 1 hour), each sample was coagulated. As a result, after 0.4 mg-Al/L coagulant dose, turbidities of all samples were below 2 mg-Kaolin/L. Turbidity was not affected by chlorine dose. As the dose of chlorine was increased, the residual aluminum was decreased, but result of $UV_{254}$ was adverse.

• Journal of Global Scholars of Marketing Science
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• v.17 no.4
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• pp.175-199
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• 2007

The linear regression method was used to model the relationship among a set of perceptions regarding to the importance of physical exercise and the perceived value of physical exercise (as a leisure activity) for aging baby boomers. In terms of a pilot study, we developed two alternative models tested at two different convenience samples. The first sample consisted of 82 aging baby boomers aged 55.65 (sample 1) and the second one consisted of 458 citizens aged 18.45 (sample 2). Through this research approach, we intended to lead to a better understanding of perceived value of physical exercise in the sporting goods marketing context for aging baby boomers. We addressed the core research themes of our study using a convenience survey. Data was collected by means of face to face interviews during the seven week period. The research results showed that the "model 2" better predicts perceived value of physical exercise as a leisure activity for aging baby boomers. We believe that the final findings of our research try can recognize the differences in buying behaviors between aging baby boomers and other target markets and advance marketers of sporting goods strategic tries regarding to consumer strategy management at a store level.

• The Korean Journal of Applied Statistics
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• v.22 no.5
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• pp.1047-1057
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• 2009

The nonparametric bivariate two-sample test of Bennett (1967) is extended to the multivariate k sample test. This test has been easily modified for a monotone trend among k samples. Often in applications it is important to consider a set of multivariate response variables simultaneously, rather than individually, and also important to consider testing k samples altogether. Different approaches of estimating the null covariance matrices of the test statistics resulted in the same limiting form. The multivariate k sample test is applied to the non-normal data of a randomized trial conducted for a period of four weeks in mental hospitals. The purpose of the trial is to compare the efficacy of three different interventions for a relief of the frequently occurring problems of constipation, caused as a side effect of antipsychotic drugs during hospitalization. The bowel movement status of patient for a week is summarized into a single severity score, and severity scores of four weeks comprise a four-dimensional multivariate variable. It is desirable with this trial data to consider a multivariate testing among k samples.

• Korean Journal of Human Ecology
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• v.1 no.1
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• pp.27-55
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• 1992

The Purpose of this study was to examine the predictive capacity of mother's perception of the family environment (cohesion, expressiveness, conflict, mother's psychosocial competence) for children's social competence. The hypotheses of this reserch were 1) There will be significant positive relationships among mother's cohesion, expressiveness, and mother's psychosocial competence. 2) There will be significant negative relationships between mother's conflict and measures of children's social competence. 3) There will not be a significant relationships between SES and measures of children's social competence. 4) There will be significant relationships between children's gender and measures of children's social competence. The subjects of this study were 133 family of mother-child. The period of research was from Aug. 20, 1990 to Feb. 29, 1992. Correlations, t-test, F-test, and multiple regression analyses were conducted to determine the relationships among variables and measures of total sample, daughter sample, and son sample. The results of this study appeared as follow: 1. Family environment (cohesion, expressiveness, and conflict) and mother's psychosocial competence were related to children's social competence. 2. There were negative relationship between mother's conflict and daughter's social competence. 3. Daughters had the higher social competence than sons. 4. Socioeconomic status(perceived by mother) of family was not related to children's social competence. 5. Sociodemographic variables affecting to children's competence were mother's school career, mother's age, mother's religion.

• Journal of The Korea Institute of Healthcare Architecture
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• v.3 no.4
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• pp.59-68
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• 1997

This study is intended to review the Nucleus System of standard hospitals in U.K. The research is focused on the theoretical background, contents of Nucleus System, and the operational problems through the survey of sample hospitals. The contents of research include the development history of standardization, outlines, aimes, advantages, the data of Nucleus system, and the study-visits of sample hospitals. The conclusion could be summarized as follows ; 1) The form of standard hospitals is compact and low-rise the major movements are horizontal. The standard plans of the functional dpartments are unified as cruciform with $15m{\times}15m$ module. 2) The Nulceus System has been developed. The hospitals have 3 stories maximum and courtyards for natural light & ventilation. 3) The advantages of Nucleus System includes reduction of design & construction period, the buildability due to the repetitive construction, and the running cost. And the disadvantages are mentioned as the lack of storage, staff accomodation, pantry, and sanitary facilities. 4) Sample hospitals provide human scale, possibilities of growth & change, and curing environment from art decoration & artificial lake. 5) In case of Korean situation, even the minimum standardization such as hospital design guidelines should be developed in near future.

• The Journal of Asian Finance, Economics and Business
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• v.8 no.5
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• pp.179-188
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• 2021

The purpose of this study is to examine the level of aggressive tax planning (ATP) among companies listed in the Access, Certainty, Efficiency (ACE) Market of Bursa Malaysia. On top of that, this study also investigates the relationship between company characteristics, ethnicity, and ATP. This study uses a balanced pooled sample of 105 firm years-observations for the period from 2014 to 2018. These samples were selected to provide new insight into this market and to explore the attitude of small firms toward ATP in Malaysia. The data was retrieved from DataStream and the downloaded annual reports. The finding shows that profitability and financial distress have a significant relationship with ATP. Other variables including size, capital intensity, inventory intensity, leverage, and ethnicity, were not determinants of ATP. The result in this study may assist the reader in understanding the nature of companies in the ACE market, particularly on its behavior toward tax planning. A strict requirement is needed to be adopted in the sample selection process, thus limiting the sample size. Further, since the previous study focused on large companies, the discussion of this paper will provide new insight into the nature of tax planning within the small- and medium-sized companies in Malaysia.

• The Journal of Asian Finance, Economics and Business
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• v.8 no.3
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• pp.717-729
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• 2021

This paper examines the efficacy of the default risk factor in an emerging market context using the Fama-French five-factor model. Our aim is to test whether the Fama-French five-factor model augmented with a default risk factor improves the predictability of returns of portfolios sorted on the firm's characteristics as well as on industry. The default risk factor is constructed by estimating the probability of default using a hybrid version of dynamic panel probit and artificial neural network (ANN) to proxy default risk. This study also provides evidence on the temporal stability of risk premiums obtained using the Fama-MacBeth approach. Using a sample of 3,806 firm-year observations on non-financial listed companies of Pakistan over 2006-2015 we found that the augmented model performed better when tested across size-investment-default sorted portfolios. The investment factor contains some default-related information, but default risk is independently priced and bears a significantly positive risk premium. The risk premiums are also found temporally stable over the full sample and more recent sample period 2010-2015 as evidence by the Fama-MacBeth regressions. The finding suggests that the default risk factor is not a useless factor and due to mispricing, default risk anomaly prevails in the Pakistani equity market.

• Journal of muscle and joint health
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• v.30 no.3
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• pp.263-272
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• 2023

Purpose: The aim of this study was to provide a scientific basis for shelf life and re-establish the shelf life in a hospital environment by investigating the validity periods of various packaging materials. Methods: We selected six departments to store sterilized items, prepared 482 sterilized items, and stored them for 12 months. Each sample was tested using a microbiological culture in the laboratory every two weeks. When the result was positive, the sample was considered contaminated. The temperature and relative humidity were measured using an automatic control system to investigate the storage environment during the study period. Results: Except for two samples, which were positive in the 22nd and 28th weeks, 480 samples were negative. The temperature and relative humidity of the sample storage area were measured every week. The annual average temperature was 23.6±1.6℃, and the mean relative humidity was 35.1±15.2%. The cabinets used in this study were the two-open and four-closed types. Conclusion: This study confirmed the validity of the expiration date in a hospital environment. Based on the results, the nonwoven fabric remained sterile for more than nine months. No case of contamination of the paper-plastic pouch packaging was observed, owing to the microbial culture for two months.

• Journal of Korean Medicine Rehabilitation
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• v.18 no.1
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• pp.125-140
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• 2008

Objectives : The purpose of this study was to investigate the effect of Progressive Muscle Relaxation(PMR) on stress and muscle relaxation in healthy people. Methods : Sample group of 14 healthy subjects had been treated by progressive muscle relaxation for 10 days. Control group of 14 healthy subjects were not treated during the same period. Outcomes were assessed by Meridian-Electromyograph(MEMG), Heart Rate Variability(HRV), Stress Reaction Inventory(SRI). Results : The contraction and fatigue of erector spinae muscle by MEMG had decreased significantly in Sample group. There was no significant difference between two groups in the HRV and SRI. Conclusions : Further studies analysing PMR effect on stress and muscle relaxation are needed.