• 정보처리학회논문지:소프트웨어 및 데이터공학
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• 제6권8호
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• pp.379-384
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• 2017

현실 소프트웨어 비즈니스 환경에서 많은 벤처/중소기업의 소프트웨어의 사용 범위가 넓어지고 품질에 대한 검증이 요구되고 있다. 소프트웨어 품질 검증은 제품과 프로세스 품질이다. 그리고 현실에 맞게 전체 조직보다는 테스트 조직의 성숙도(Test Maturity Model)에 초점을 둔다. 하지만 기존 모델은 국내 벤처/중소기업에게 적용이 부적합한 부분이 존재한다. 이를 위해 테스트 성숙도 모델의 경량화를 제안한다. 우리의 경량 모델은 기존 테스트 성숙도 모델과 테스트 프로세스 개선(TPI Next) 모델을 기반으로 재정의된 모델이다. 하지만 대부분 모델은 성숙도 레벨을 정의하고, 레벨을 달성하기 위한 목표 및 세부 활동만 제공할 뿐이다. 평가단을 위한 평가 가이드 및 정형화된 평가 절차가 존재하지 않는다. 그렇기 때문에 심사위원과 기업이 정형화된 심사 과정 및 평가를 진행하기 어렵다. 본 논문은 경량화된 테스트 성숙도 모델의 평가 가이드를 제안한다. 평가를 위한 진단 절차를 정의와 평가 가이드, 그리고 평가 절차 및 절차별 활동과 산출물의 정의한다. 이 평가 가이드는 심사 위원에게는 정형화된 심사가 가능하게 하고, 자체 평가 가이드는 자체 테스트 조직에 심사 준비를 좀더 빠르고 바르게 진행하게 한다.

• The Korean Journal of Pain
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• 제29권4호
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• pp.255-261
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• 2016

Background: Thoracic epidural anesthesia is frequently used to maintain intraoperative and postoperative analgesia. Frequently, 3 ml of local anesthetic is used as a test dose, or for intermittent epidural injection. We assessed the extent of the spread of 3 ml of contrast medium in the thoracic epidural space and attempted to identify any correlating factors affecting the epidurography. Methods: A total of 70 patients were enrolled in the study, and thoracic epidural catheterizations were performed under fluoroscopic guidance. Using 3 ml of contrast medium, epidurography was evaluated to confirm the number of spinal segments covered by the contrast medium. Correlation analysis was performed between patient characteristics (sex, age, body mass index, weight, height, and location of catheter tip) and the extent of the contrast spread. Results: The mean number of vertebral segments evaluated by contrast medium was $7.9{\pm}2.2$ using 3 ml of contrast medium. The contrast spread in the cranial direction showed more extensive distribution than that in the caudal direction, with statistical significance (P < 0.01). Patient height demonstrated a negative correlation with the extent of distribution of contrast medium (r = -0.311, P < 0.05). Conclusions: Thoracic epidurography using 3 ml of contrast medium results in coverage of a mean of $7.9{\pm}2.2$ spinal segments, with more extensive cranial spread, and patient height showed a weak negative correlation with the distribution of contrast medium.

• 한국구조물진단유지관리공학회 논문집
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• 제19권1호
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• pp.13-22
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• 2015

본 연구에서는 기존 강도증진형 내진보강법의 단점을 보완 개선할 수 있는 새로운 개념의 내진보강법인 RCSF (Reinforced Concrete Steel Frame) 외부접합형 내진보강공법을 제안하였다. RCSF 보강법은 거주자가 거주가 가능하면서 내진보강 공사를 실시할 수가 있으며, 접합부 시공성이 탁월하며, 특히 필요 내진보강량 산정이 간편한 전형적인 강도증진형으로 전단파괴가 지배적인 비내진상세를 가지는 국내 중 저층 철근콘크리트 건물에는 내력확보가 용이한 내진보강공법이다. 본 연구에서 제안한 RCSF 외부접합형 공법의 유용성을 검증 할 목적으로 기존 중 저층 철근콘크리트 학교건물의 골조를 대상으로 유사동적실험을 실시하여 검증함과 동시에 내진보강효과를 검토하였다. 그 결과, 국내에서 발생 가능한 최대 지진규모 (300gal)에서 비보강 골조는 붕괴를 하였지만, RCSF 외부접합형 내진보강법으로 보강한 골조는 경미한 지진피해가 예상되었으며, 대규모 지진 (400, 500gal)을 상정한 경우에도 소규모 이하의 지진피해가 예상되어 본 연구에서 개발한 RCSF 내진보강법의 유효성이 검증되었다고 사료된다.

• 한국유체기계학회 논문집
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• 제14권3호
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• pp.23-27
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• 2011

Due to a roots type medium vacuum pump is operated in condition of $1{\sim}10^{-3}$ torr vacuum, it could be applied for production and process of industrial parts, such as precise processing, vaporization, enrichment, separation, casting, metaling, welding, transportation. Therefore, the demand of this pump is increasing nowadays in our industrial markets of semiconductor, electric, electronic, automobile, material, environmental and transporting industries. However, the pumps are almost imported, because the domestic pumps are inferior in fields of vacuum range as under $10^{-1}$torr, relevant techniques(design, fabrication, casting, test, etc.) to the imported ones. In this study, essential parts of the development pump are designed with using of CFD and 3D decodes, FEM for analysing strength and deformation, generated heat, vibration and noise control, and are casted with using of mechanochemistry techniques for decreasing of weights, increasing of heat resistances and abrasion durability of materials for pump caing and impellers especially. Besides, in order to achieve ultimate vacuum around $10^{-3}$torr, this pump is composed of 6 stages, among which 1st stage is operated separately from remained stages. Additionally, a test rig for prototype pumps(300$m^3/h$ and 2,500$m^3/h$) is designed and procured as to apply for multi-staged rootz type vacuum pump, with modification of the test method recommended by KS B 6314 "Positive-displacement oil-sealed rotary vacuum pumps".

• 임상간호연구
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• 제24권1호
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• pp.67-73
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• 2018

Purpose: This study was done to explore the relationship between expectations of the clinical ladder system (CLS), career commitment and turnover intention in nurses employed in small-medium sized hospitals. Methods: Participants were 154 nurses from 3 small-medium sized hospitals in Gyeonggi Province and Gwangju City. From February, 8 to April, 14, 2017, self-report questionnaires were collected and analyzed using frequency, t-test, ANOVA, $Scheff{\acute{e}}$ test, and Person correlation coefficients. Results: Of the participant nurses, 61% perceived the CLS as needed. The mean score for expectation of CLS, career commitment, and turnover intention on 5-point scale were 3.38, 3.17, 3.21, respectively. There were no significant differences in expectation of CLS according to general characteristics, but career commitment and turnover intention did show significant differences depending on age, position, type of work shift. Expectation of CLS correlated positively with career commitment (r=.23, p=.005), and career commitment correlated negatively with turnover intention (r=-.49, p<.001). Conclusion: The results of this study show that there is a need to adopt the clinical ladder system to improve career commitment.

• 한국유체기계학회 논문집
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• 제9권2호
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• pp.30-38
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• 2006

An aerodynamic design for centrifugal compressor which was applied to medium speed diesel engine has been done. First of all, exact compressor specifications must be defined by accurate engine system matching. This matching program has been developed. Using the meanline prediction method, geometric design and performance curves for compressor were established and verified by comparing three dimensional viscous CFD results. The deviation at the design point was about 2.3%. Combustor has been designed and manufactured for the performance test of medium speed diesel engine turbocharger. Fuel nozzle of combustor was designed and its characteristics was analyzed by PIV and PDPA test equipment. Through these results, spray characteristics were studied and flow coefficient equation was deduced.

• 한국가구학회지
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• 제18권1호
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• pp.13-19
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• 2007

The influences of coating on oak veneer overlaid Medium Density Fiberboard (MDF) were evaluated. The hardness of 9mm-MDF by hardness test were increased about 28% with coating on MDF and the more increased hardness of 31% with oak veneer overlaid MDF. The hardness of veneer overlaid MDF increased with increment of the veneer thickness and that of overlaid MDF showed the higher hardness compared to non-overlaid MDF. The optimum moisture content in terms of the hardness of panels MDF was in the range of 7% to 10% and the hardness was decreased with increasing of the moisture content. Any cracks were not overlaid coated on the MDF but the cracks were observed on the overlaid MDF after Soak under Vacuum Dry 10-cycle. The thicker veneer-overlaid MDF showed more cracks.

• 한국정보시스템학회지:정보시스템연구
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• 제24권4호
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• pp.1-19
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• 2015

Purpose Co-creation is a form of collaboration to create joint values with participation of diverse interested parties. It has been introduced by large companies at an early stage and due to changes in management environment, the scope of its concept has been expanding to the SMM(Small and Medium Manufactures). The objective of this study is to examine the impact of Co-creation on SMM's non-financial and financial performance. Design/methodology/approach Based on literature review, the research model was developed. To test this research model, we collected 188 questionnaires with SMM which utilized Co-creation and supplied parts to the companies. The t-test and ANOVA were employed for the analysis of data Findings The research result showed that the difference in business performance between the groups with much use of Co-creation and those with little use of Co-creation, there was significant difference in both non-financial and financial performance. In addition, non-financial and financial performance were different among four implementation behavior of Co-creation including Common value, Information share, Risk benefit, and Mutual benefit.

• Journal of Ginseng Research
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• 제10권2호
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• pp.200-208
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• 1986

It was attempted in this study to investigate the effect of ginseng saponin on several glycolytic enzymes of yeast cell and the following results were obtained. The amount of $CO_2$formed during the incubation of yeast cells in medium containing saponin fraction of Panax ginseng C.A. Meyer was greater than that of control cells and found that the $CO_2$ formation was greatest when the cells were grown in the medium containing 10$^{-3}$% of the saponin fraction, at which the uptake of inorganic phosphate and glucose consumption were also increased. Radioactivity study of several glycolytic intermediates of yeast cells cultured in the medium containing [U-$^{14}$C]-glucose showed that the radioactivity of fructose 6-phosphate of test cells was as much as 1.6times that of control group. On the other hand, the radioactivity of pyruvate of test cells was considerably decreased compared to control. Investigation of the effect of ginseng saponin on yeast hexokinase, phosphoglucose isomers, pyruvate kinase and perverted decarboxylase in vitro showed that the maximum activities of the above enzymes were observed when the concentration of ginseng saponin was 10-$^{-5}$% in the reaction mixture. It seemed that the ginseng saponin stimulated both glycolytic enzymes such as hexokinase, phosphoglucose isomers and perverted decarboxylase significantly.

• The Journal of Asian Finance, Economics and Business
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• 제9권7호
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• pp.123-133
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• 2022

This paper explores the key factors influencing the business performance of enterprises, specifically women-owned small and medium enterprises (SMEs) in Vietnam. The extant literature on factors affecting the business performance of women-owned SMEs in Vietnam is still quite scarce. The researchers used a self-administered questionnaire to achieve a sample of 265 female SME owners in Vietnam to find these factors. The obtained data was analyzed by using SPSS 20.0. Cronbach's α test and factor analysis have been carried out to test the reliability of data and validate the hypothesis. The results showed that these enterprises' performances had a significant positive relationship with the business management competencies of the directors of the business, quality of human resources, financial access, socio-cultural factors, and government policy. Also, the study showed no relationship between the enterprise's business network and business performance. The results suggest that female business owners should improve their business management capacity, focusing on training activities to improve the quality of human resources of enterprises. The Government needs policies to support small and medium enterprises in accessing financial and other resources and propagate to reduce gender stereotypes.