• 디지털융복합연구
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• 제18권4호
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• pp.177-191
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• 2020

본 연구는 프랜차이즈 경영자의 사적 효용 동기에서 비롯된 자기과시적 성향이 기업의 원가행태에 어떠한 영향을 미치고 있는지를 검정하고자 하였다. 연구 문제를 해결하기 위해 국내 프랜차이즈 경영자의 자기과시적 성향에 대한 대용치를 개발하고 이들 특성 변수를 그룹화하여 그룹별 독립변수가 영업비용인 종속변수에 미치는 영향을 다중회귀모형을 이용하여 비교·분석하였다. 연구 결과, 프랜차이즈 경영자의 자기과시적 성향은 매출 감소 시 영업비용의 하방경직성을 강화시키게 되고, 자기과시적 성향이 커질수록 하방경직성은 더욱 강화되어 나타났다. 본 연구는 기존 연구에서 수행되지 않았던 프랜차이즈 경영자의 갑질 행위 등의 자기과시적 성향에 대한 대용치를 개발하여 향후 프랜차이즈 경영자에 대한 연구를 강화하고, 기업의 영업비용에 미치는 경영자의 자기과시적 속성의 영향을 확인함으로써 예비창업자, 가맹점주, 투자자 등의 프랜차이즈 이해관계자에게 유용한 정보를 제공할 것이다.

• 현장농수산연구지
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• 제25권4호
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• pp.67-77
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• 2024

This study analyzed the profitability and diagnosed business performance of fruit and vegetable (cherry tomatoes, tomatoes, strawberries, cucumbers) businesses targeting young farmers participating in the youth business incubation center of A Smart Farm Innovation Valley. The purpose of this is to provide basic data for decision-making by prospective young entrepreneurs. As a result of the analysis, Smart Farm Innovation Valley had the advantage of having a fixed rental fee. As a result, it was analyzed that various costs such as depreciation of large farm equipment, depreciation of farming facilities, repair and maintenance costs, land rent, floating capital service cost, fixed capital service cost, and land capital service cost are being reduced. However, excessive input of labor, water, electricity, other materials, and fertilizer costs was being made. Guidance to reduce these costs is expected to make a significant contribution to expanding the influx of young farmers.

• 대한영양사협회학술지
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• 제9권1호
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• pp.32-39
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• 2003

Although medical nutrition therapy (MNT) is considered as a cornerstone of medical treatment for hypercholesterolemia, few studies have evaluated medical and economical outcome of MNT. This study was conducted to identify whether MNT administered by registered dieticians could lead to a beneficial clinical and cost outcome in persons with hypercholesterolemia. A prospective clinical trial was carried out at outpatient clinics, which involved an initial visit with a dietitian followed by another visit at first 4 weeks during the 6 weeks study periods. Thirty-nine subjects took part in a 6 weeks nutrition intervention program. Clinical and economical outcomes were compared before and after MNT. Medical nutrition therapy lowered total serum cholesterol level 6.1% (P<0.05), low-density lipoprotein cholesterol (LDL-C) 9.4% (P<0.05) and high-density lipoprotein cholesterol (HDL-C) 3.0% (P<0.05). The cost-effective ratio was ￦ 1,520/cholesterol mg/dl and ￦ 1,441/LDL-cholesterol mg/dl, respectively. After dietitian's intervention, lipid drug eligibility was obviated in 16 of 39(41%) subjects. The cost savings from the avoidance of lipid medications was ￦ 151,107 per patient annually. In conclusion, it is suggested that provision of systemic intensive nutritional care for persons with hypercholesterolemia has significant effects on serum cholesterol reduction and clinical cost savings.

• Archives of Plastic Surgery
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• 제46권4호
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• pp.303-310
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• 2019

Background Prosthetic hands with a myoelectric interface have recently received interest within the broader category of hand prostheses, but their high cost is a major barrier to use. Modern three-dimensional (3D) printing technology has enabled more widespread development and cost-effectiveness in the field of prostheses. The objective of the present study was to evaluate the clinical impact of a low-cost 3D-printed myoelectric-interface prosthetic hand on patients' daily life. Methods A prospective review of all upper-arm transradial amputation amputees who used 3D-printed myoelectric interface prostheses (Mark V) between January 2016 and August 2017 was conducted. The functional outcomes of prosthesis usage over a 3-month follow-up period were measured using a validated method (Orthotics Prosthetics User Survey-Upper Extremity Functional Status [OPUS-UEFS]). In addition, the correlation between the length of the amputated radius and changes in OPUS-UEFS scores was analyzed. Results Ten patients were included in the study. After use of the 3D-printed myoelectric single electromyography channel prosthesis for 3 months, the average OPUS-UEFS score significantly increased from 45.50 to 60.10. The Spearman correlation coefficient (r) of the correlation between radius length and OPUS-UEFS at the 3rd month of prosthetic use was 0.815. Conclusions This low-cost 3D-printed myoelectric-interface prosthetic hand with a single reliable myoelectrical signal shows the potential to positively impact amputees' quality of life through daily usage. The emergence of a low-cost 3D-printed myoelectric prosthesis could lead to new market trends, with such a device gaining popularity via reduced production costs and increased market demand.

• 전기학회논문지
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• 제62권10호
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• pp.1390-1396
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• 2013

The paper estimated the reasonable market price of lead-acid battery energy storage system (BESS) intended for demand management of electricity customers. As time-of-use (TOU) tariffs have extended to a larger number of customers and gaps in the peak and off-peak rates have gradually risen, deployment of BESS has been highly needed. However, immature engineering techniques, lack of field experiences and high initial investment cost have been barriers to opening up ESS markets. This paper assessed electricity cost that BESS operation could save for customers and, based on the possible cost savings, estimated reasonable prices at which BESSs could become a more prospective option for demand management of customers. Battery scheduling was optimized to maximize the electricity cost savings that BESS would possibly achieve under TOU tariffs conditions. Basic economic factors such as payback period and return on investment were calculated to determine reasonable market prices. Actual load data of 12 industrial customers were used for case studies.

• 한국주거학회논문집
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• 제26권4호
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• pp.11-21
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• 2015

Due to the mass production of housing in Korea, homogeneous current housing may fail to represent residents' preferences, especially for the elderly. The purpose of this study is to identify the preferred properties of consumers for accessible housing and to examine whether cluster analysis can identify groups of residents with similar accessible housing preferences. Using a conjoint method, prospective users can jointly consider all accessible attributes, with cost attributes suggested by this study. Four categories (accessibility, safety, convenience, cost), 7 attributes (clear width, level difference, installation of grab bars, installation of elevators: only for single house type, non slippery floor materials, safety alarms, service control devices, cost) and 2 levels for each attribute were chosen. A total of 374 questionnaires were collected through a questionnaire survey method. This study employed ratings-based Conjoint analysis and the respondents ranked each card, which consisted of a set of accessible housing attributes. The data were analyzed using SPSS 16.0. The findings of this study have identified 3-4 clusters for each housing sub market. Each cluster has a different combination of socio-demographic characteristics and residential characteristics, and showed the relative importance or preference values for each accessible attribute of the segmentation. For the single housing, one group of people strongly preferred installation of elevator. The results suggested that better customization of housing could be more appealing to the different clusters of residents, providing accessible housing with cost limitations.

• 한국의료질향상학회지
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• 제7권2호
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• pp.168-179
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• 2000

Background : Economic evaluation of clinical pharmacokinetic consultation services for theophylline, which is being widely used recently, is considered in patients for both proper care and cost efficiency. Mathods : This is a cost-benefit analysis of clinical pharmacokinetic consultation service for theophylline. Trial groups were chosen from 2 general hospitals which was performing clinical pharmacokinetic consultation- services in 1998. Control group was chosen from another one general hospital. The analysis includes 25 patients (sample patients) for trial group and 17 patients for control group. Results : On the basis of incremental analysis, it is estimated that the total (direct and indirect) annual costs of the clinical, pharmacokinetic services of theophylline for the patients in the trial group was about \65 million, whereas total annual benefits from those services was estimated to be about \551 million. The net benefits incurred to the sample patients, thus calculated, was about \485 million per year. In the analysis, we assumed that indirect benefits accruing to those services were non-existent. If that amount was included, the estimated net benefits would be much greater than the calculated one. Conclusion : We found that clinical pharmacokinetic consultation services for theophylline could produce more marginal benefits than marginal costs by those services from the social point of view. More controlled prospective trial in the future would be helpful for affirmation of the results of this study.

• Journal of Power Electronics
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• 제4권1호
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• pp.18-27
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• 2004

The output storage capacitor of the PFC converters is commonly designed for the selected hold-up time or the allowed output ripple voltage percentage. Nevertheless, this output capacitor is a main contribution factor to the PFC system stability. Moreover, seeking for a minimum output storage capacitor that assures the PFC desired operation under all condition, and providing the advantage of a small size and low cost is the main interesting target for engineering. Therefore, in this issue the design steps of the PFC converter have been discussed depending on three choices, output ripple, hold-up time, and stability. It is cleared that any design must take the minimum required storage capacitor for stability prospective as step-l in deign, then apply for any other specification like hold-up time or ripple percentage.

• Clinical and Experimental Pediatrics
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• 제51권10호
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• pp.1038-1041
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• 2008

Aminoglycosides are frequently used antibiotics in children. The multiple daily dosing (MDD) in infants and children is twice or three times daily depending on age. Recent studies in adults have shown that once daily dosing (ODD) maximizes the bactericidal activity and might minimize the toxicity of antibiotics. So, I reviewed many studies about efficacy, toxicity and cost effectiveness of ODD of aminoglycosides in children. Most studies suggest that ODD compared with MDD of aminoglycosides is theoretically more efficacious and has no higher toxicity in infants and children. But, the total number of patients included in the studies is not large. Multi-center, controlled prospective studies are required in larger numbers of infants and children to determine the efficacy and safety of the ODD regimen in children before ODD of aminoglycosides can be recommended for routine use.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2004년도 추계학술대회 논문집 Vol.17
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• pp.199-202
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• 2004

NFGM(Nano-Floating Gate Memory) is a very prospective candidate memory for the next generation with MRAM, PRAM, PoRAM. Among these memory devices for the next generation, NFGM has a lot of merits such as a simple low cost fabrication process, improved retention time, lower operating voltages, high speed program/erase time and so on. Therefore, many intensive researches for NFGM have been performed to improve device performance and reliability, which depends on the ability to control particle size, size distribution, crystallity, areal particle density and tunneling oxide quality. In this paper, we investigate the researches for NFGM up to recently.