• Information Systems Review
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• v.5 no.1
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• pp.113-127
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• 2003

In recent studies, there has been much interest in knowledge sharing between the company and customer. Yet, there is little empirical work on the impact of the factors on CRM performances. The purpose of this study is empirically analyzing the effects of organizational factors of knowledge management, CRM system factors, and trust on CRM performances. The findings indicate that 3 factors (knowledge-oriented organizational culture/characteristic, technical systems, trust) are significantly related to CRM performances. However, the relationships between other factors (knowledge-oriented leadership, knowledge-oriented strategy, education & reward) and CRM performances are not significant.

• 한국태양에너지학회:학술대회논문집
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• 2008.04a
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• pp.330-335
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• 2008

This research aims to investigate the standards and the performances of domestic and foreign windows for and apartment house and to present fundamental data for selecting the optimum window at the step of designing an apartment house. To compare the performances of domestic and foreign windows it is selected 5 major window companies in and 3 major window companies in Japan, and investigated window structure, material, type of opening and closing, window glass and the performances of windows for an apartment house-closing and opening force, repeated closing and opening, thermal resistance, sound transmission loss, air tightness, water tightness, wind resistance. The result of a comparative analysis show that the average thermal resistance of Korean window is higher than Japan's but the average sound transmission loss and water tightness of Korean window is lower than Japan's and the rest of the performances is similar.

• 제어로봇시스템학회:학술대회논문집
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• 2005.06a
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• pp.1351-1354
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• 2005

Recently, as the feasibility study shows that trans-Korea railway and trans-continental railway are advantageous, interest in high speed railway system is increasing. Because railway vehicle is environment-friendly and safe compared with airplane and ship, its market-sharing increases gradually. Korean High Speed Train has been developed by KRRI for last 7 years to satisfy the need. Korean High Speed Train (350km/h), composed of 2 power cars, 2 motorized car and 3 trailer cars, has been developed and is under trial test. To verify the design requirements for the functions and traction performances of the train, KRRI (Korea Railroad Research Institute) decided to evaluate traction performances of the train during trial test. For this purpose, torque, velocity, voltage and current must be measured. KRRI has developed a measurement system that can measure vast and various signals effectively. In this paper, we introduce traction performances of Korean High Speed Train. The traction measurement items are focused on the verification of motor block performances. Motor block consists of 2 motors. By this test, we verified traction performances of Korean High Speed Train

• Asian-Australasian Journal of Animal Sciences
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• v.7 no.4
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• pp.563-570
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• 1994

Fifty-one Thai Native (TN) and Anglo-Nubian (AN) $\times$ TN does were studied. The purpose of the study was to investigate the reproductive performances of different goat genotypes grazing improved pasture with or without supplementary feeding. The feeding regimes were: 1. no concentrate supplement (T1), 2. supplemented for 15 days before mating and 45 days during mating period (T2), 3. supplemented from 15 days before mating to 42 days after kidding (T3) and 4. supplemented for 30 days before kidding, followed by 42 days after kidding. Cross-bred does tended to have higher conception rates, kidding opportunities and higher multiple birth rates than TN does. However, these differences were not statistically significant (p>0.05), and concentrate supplementation under the various regimes did not increase reproductive performance. TN kids had significantly (p<0.01) lower birth weights and lower weights at 3, 6 and 12 weeks of age than those of the cross-bred kids. However, there was no significant difference between the genotypes in growth rate (g/d or $g/kg^{75}/d$) of kids during these periods. Supplementary feeding did not significantly affect either kid birth weight or weight gain in the first 6 weeks after birth and during this period supplementary adequate in both quantity and quality, substantial reproductive performances were achieved from both TN and AN $\times$ TN does without concentrate supplementation.

• Journal of Korea Technology Innovation Society
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• v.11 no.4
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• pp.431-449
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• 2008

I analyzed the relationships among motives, strategies, and performances of the university-initiated R&D activities in the Information Technology Research Center(ITRC) Projects. I suggested a research model and 3 hypothesis about them through analysis of a lot of literatures. And I also made an empirical test on the hypothesis through statistical methods. The data which were used in this analysis were gathered through a questionnaire survey to the head of R&D projects in the ITRCs. I would make several useful suggestions to the head of university's ITRCs and the policy makers. Firstly, the type of university's R&D strategy were influenced from several motives such as technology development and acquisition, co-utilizations of research facilities, and utilization and rearing of the expertise. Secondly, to select an optimal type of R&D strategy, the university should considered the efficient methods which were related to forecasting market size of new product and new technology, and to using the useful information on technology development, and to securing the expertise. Thirdly, the researcher and manager of ITRCs had to recognize the correct forecast of future market size of new product and new technology and a useful information about technology development, as the most important factors in improving performances of R&D projects. Lastly, They had to make an effort of getting the efficient methods to secure the expertise, research facilities, and rational compensation system.

• Asian-Australasian Journal of Animal Sciences
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• v.19 no.1
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• pp.26-30
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• 2006

The study was undertaken to investigate the validity of milk urea concentration as an index of the reproductive performances in crossbred Karan-Fries (Holstein Friesian${\times}$Tharparkar) cows under farm condition. Milk urea was analysed in noon milk samples (1200 to 1300 h) to interrelate with the interval from parturition to first service, number of insemination per conception, first service conception rate and service period. Milk progesterone (P4) was analysed in noon milk samples on the day 1, 10, 20 and 30 post insemination to study the effect of milk urea concentration on early embryonic mortality. The interval from parturition to first service was found significantly (p<0.01) higher ($77.2{\pm}5.5$ days) when milk urea concentration was ${\geq}63.4mg/dl$. The average milk urea concentrations (mg/dl) were found $42.1{\pm}2.5$, $47.9{\pm}1.5$ and $50.3{\pm}3.1$, respectively in cows that conceived at $1^{st}$, $2^{nd}$ and $3^{rd}$ insemination. However, the variation was not statistically significant. The first insemination conception rate was found significantly (p<0.05) higher (68.8%) when milk urea level was ${\leq}32.4mg/dl$. The service period was found significantly (p<0.05) higher ($125.4{\pm}8.8$ days) when milk urea concentration was ${\geq}45.1mg/dl$. The milk P4 level indicated that the cows, those were detected as non-pregnant on day 60 post insemination were initially pregnant but the pregnancy was terminated sometime during the day 30 to 60 post insemination. The study indicates that the milk urea values may be used as an index of reproductive performances in dairy herd when individual animals are not being monitored for nutritional status. The altered milk urea values may be utilised by the farmers as ready reference to rectify the protein and energy nutrition in cows to achieve the better reproductive performances in herd.

• Korea Journal of Hospital Management
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• v.6 no.2
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• pp.86-114
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• 2001

As the environment related to hospital operation has changed very competitively in recent years, a need to reform the hospital management is ever growing. For that reason, it has become more urgent and strategically important for us to diagnose the organizational culture of the hospitals and to make efforts to change them towards more performance- and customers-oriented one. So far, there have been many studies done on the hospital organizations. However, this research distinctively attempts to base itself on the competing values approach in studying the organizational culture and empirically examine how different profiles of the organizational culture may have an impact on the organizational performances in hospital organizations. The results of this study has showed several interesting findings and posed the discussions to be dealt with. First, most hospitals selected for this research are characterized by the inner-oriented culture with more focused on 'hierarchy' and 'relationship-oriented' culture rather than on 'reform' and 'work-oriented' one. And the strong 'hierarchy-oriented' culture is a very general phenomenon in the sample hospitals. From these findings, we can inference that despite the recent efforts of most Korean hospitals for organizational change and innovation they still have long distance way to go. In addition, another important implications of this research has come from the analysis of the relationships between the cultural profiles and organizational performances. For this purpose, this research has conducted a series of cluster analysis and identified four distinct cultural profiles from the sample organizations. Several major findings are as follows. First, with respect to the dependent variable of 'job satisfaction' perceived by the nurses working in the sample hospitals, we found that the balance of competing organizational values had more positive impact on the job satisfaction. This result confirms the hypothesis of competing values model on the organizational performances. However, such result was not replicated on the other dependent variable, 'patients' satisfaction'. The reasons for these results and other discussions including the limitations of this study are suggested.

• Proceedings of the Korean Society of Crop Science Conference
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• 2022.10a
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• pp.199-199
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• 2022

• Proceedings of the Korean Society of Crop Science Conference
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• 2022.04a
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• pp.116-116
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• 2022

• International Journal of Naval Architecture and Ocean Engineering
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• v.11 no.2
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• pp.883-898
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• 2019

This paper employs computational tools to predict power increase (or speed loss) and propulsion performances in waves of KVLCC2. Two-phase unsteady Reynolds averaged Navier-Stokes equations have been solved using finite volume method; and a realizable k-ε model has been applied for the turbulent closure. The free-surface is obtained by solving a VOF equation. Sliding mesh method is applied to simulate the flow around an operating propeller. Towing and self-propulsion computations in calm water are carried out to obtain the towing force, propeller rotating speed, thrust and torque at the self-propulsion point. Towing computations in waves are performed to obtain the added resistance. The regular short head waves of λ/LPP = 0.6 with 4 wave steepness of H/λ = 0.007, 0.017, 0.023 and 0.033 are taken into account. Four methods to predict speed-power relationship in waves are discussed; Taylor expansion, direct powering, load variation, resistance and thrust identity methods. In the load variation method, the revised ITTC-78 method based on the 'thrust identity' is utilized to predict propulsive performances in full scale. The propulsion performances in waves including propeller rotating speed, thrust, torque, thrust deduction and wake fraction, propeller advance coefficient, hull, propeller open water, relative rotative and propulsive efficiencies, and delivered power are investigated.