• 한국축산시설환경학회지
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• 제16권1호
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• pp.29-40
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• 2010

본 연구에서는 동물복지형 축산물의 경제적 가치를 국내외의 선행연구를 통하여 알아보고자 하였다. 이 연구를 위하여 국내 외에서 발간된 다양한 연구결과를 참고하였다. 분석결과 국내 외 모두 이 분야에 대한 연구가 그리 활발하지 않다는 점을 발견하였다. 분석은 소고기, 돼지고기, 닭고기, 칠면조고기 등의 육류와 계란에 대한 소비자들의 의식조사가 주를 이루고 있었다. 여기에 사용된 데이터는 설문조사를 통한 데이터가 주를 이루고 있었으며, Lexis-Nexis databases, 소고기, 돼지고기, 가금육, 비육류 식품에 대한 분기별 소비량과 소비자가격, 그리고 경매실험을 통한 데이터 등이 사용되었다. 한편, 분석모형으로는 Random parameters logit and latent c1ass model, WTP 분석, Roterdam model, Pearson's Chi test, Mann-Whitney U-test, Kruskal-Wallis test, structural equation model, 회귀분석, Target-costing, 그리고 conjoint 분석 등이 사용되었다.

• 항공우주의학회지
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• 제31권2호
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• pp.45-50
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• 2021

Background: Obesity is a major public health problem that is causally related to serious medical conditions. In this study, the public health implications of obesity based on body mass index (BMI) with anthropometric measures among adults in the Republic of Korea and Japan in 2019 were compared. Methods: A simple cross-section, nationally representative of the raw data from the National Health and Nutrition Examination Survey in 2019 between Korea and Japan were used. We analyzed the data of those categorized as obese with a BMI of ≥25 kg/m² according to the World Health Organization Expert Consultation. Results: The average values of BMI based on body height and body weight among males and females in Korea were 24.6±0.08 and 23.3±0.09, respectively; those in Japan were 23.9±0.08 and 22.6±0.08, respectively. The measured anthropometric values were obviously higher in Korean than in Japan (P<0.01). The prevalence rates (PRs) of obesity by sex in Korea were 41.4% among males and 27.3% females; those in Japan were 32.5% among males and 22.0% among females. The statistically significant results showed that the total obesity rate was higher in males than in females in both countries (P<0.01). The PRs of obesity in Korea were 41.4% in males and 27.3% in females; those in Japan were 32.5% in males and 22.0% in females. The statistically significantly PR of total obesity among Korean adults was greater than that among Japanese adults (P<0.01). Conclusion: The PR of obesity in Korea relative to that in Japan showed a gradually increasing trend. Obesity is a major problem, especially in the pilot group. Reducing the prevalence of obesity among pilots is important for reducing in-flight medical incapacitation and ensuring flight safety. Obesity management is necessary to prevent obesity-related diseases and promote pilot health.

• 대한임상검사과학회지
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• 제52권2호
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• pp.91-97
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• 2020

비타민 D 검사의 표준화는 전 세계적으로 계속되고 있으며, 결과의 정확성을 향상시키기 위해 많은 노력을 기울였다. 본 연구의 목적은 외부 품질 평가(EQA) 프로그램을 이용하여 비타민 D 검사의 시그마 메트릭스 값을 분석하는 것이다. 시그마 메트릭스는 검사기관에서 수행한 정량적 시험에 사용되며, 분석결과는 품질 측면에서 객관적으로 시각화할 수 있다. 이 분석은 약 300개의 검사기관이 참여한 가운데, CAP의 외부정도관리 프로그램인 2019년 정확도 기반 비타민 D (ABVD) 조사 결과를 이용하여 수행하였다. CDC 표준검사기관에서 얻어진 표준 값 6개의 서로 다른 농도에서는 시그마 메트릭 값이 각각 1.00, 1.85, 2.42, 1.01, 1.54 및 0.78로 분석되었다. 평균 1.43 시그마 메트릭 값을 보여주었다. 특히, 검체 ABVD-16, 17의 결과값에서의 양성 편향은 비타민 D 측정을 위한 표준검사법인 액체크로마토그래피 탠덤 질량 분석(LC-MS/MS)에 대해서만 나타났다. 차이의 원인은 다양한 비타민 D 대사산물에 대한 다양한 교차 반응으로 설명된다. 검사 기관은 전반적인 성능을 개선해야 한다.

• Journal of Radiation Protection and Research
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• 제48권2호
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• pp.59-67
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• 2023

Background: This study aims to reevaluate natural radiation exposure, following up on our previous study conducted in 2019, and to assess the associated risk of lung cancer to the public residing in the gold mining areas of Betare-Oya, east Cameroon, and its vicinity. Materials and Methods: Gamma-ray spectra collected using a 7.62 cm×7.62 cm in NaI(Tl) scintillation spectrometer during a car-borne survey, in situ measurements and laboratory measurements performed in previous studies were used to determine the outdoor absorbed dose rate in air to evaluate the annual external dose inhaled by the public. For determining internal exposure, radon gas concentrations were measured and used to estimate the inhalation dose while considering the inhalation of radon and its decay products. Results and Discussion: The mean value of the laboratory-measured outdoor gamma dose rate was 47 nGy/hr, which agrees with our previous results (44 nGy/hr) recorded through direct measurements (in situ and car-borne survey). The resulting annual external dose (0.29±0.09 mSv/yr) obtained is similar to that of the previous study (0.33±0.03 mSv/yr). The total inhalation dose resulting from radon isotopes and their decay products ranged between 1.96 and 9.63 mSv/yr with an arithmetic mean of 3.95±1.65 mSv/yr. The resulting excess lung cancer risk was estimated; it ranged from 62 to 216 excess deaths per million persons per year (MPY), 81 to 243 excess deaths per MPY, or 135 excess deaths per MPY, based on whether risk factors reported by the U.S. Environmental Protection Agency, United Nations Scientific Committee on the effects of Atomic Radiation, or International Commission on Radiological Protection were used, respectively. These values are more than double the world average values reported by the same agencies. Conclusion: There is an elevated level of risk of lung cancer from indoor radon in locations close to the Betare-Oya gold mining region in east Cameroon. Therefore, educating the public on the harmful effects of radon exposure and considering some remedial actions for protection against radon and its progenies is necessary.

• 지능정보연구
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• 제19권2호
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• pp.39-54
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• 2013

전자상거래의 폭발적 증가는 소비자에게 더 유리한 많은 구매 선택의 기회를 제공한다. 이러한 상황에서 자신의 구매의사결정에 대한 확신이 부족한 소비자들은 의사결정 절차를 간소화하고 효과적인 의사결정을 위해 추천을 받아들인다. 온라인 상점의 상품추천시스템은 일대일 마케팅의 대표적 실현수단으로써의 가치를 인정받고 있다. 그러나 사용자의 기호를 제대로 반영하지 못하는 추천시스템은 사용자의 실망과 시간낭비를 발생시킨다. 본 연구에서는 정확한 사용자의 기호 반영을 통한 추천기법의 정교화를 위해 데이터마이닝과 다중모형조합기법을 이용한 상품추천시스템 모형을 제안하고자 한다. 본 연구에서 제안하는 모형은 크게 두 개의 단계로 이루어져 있으며, 첫 번째 단계에서는 상품군 별 우량고객 선정 규칙을 도출하기 위해서 로지스틱 회귀분석 모형, 의사결정나무 모형, 인공신경망 모형을 구축한 후 다중모형조합기법인 Bagging과 Bumping의 개념을 이용하여 세 가지 모형의 결과를 조합한다. 두 번째 단계에서는 상품군 별 연관관계에 관한 규칙을 추출하기 위하여 장바구니분석을 활용한다. 상기의 두 단계를 통하여 상품군 별로 구매가능성이 높은 우량고객을 선정하여 그 고객에게 관심을 가질만한 같은 상품군 또는 다른 상품군 내의 다른 상품을 추천하게 된다. 제안하는 상품추천시스템은 실제 운영 중인 온라인 상점인 'I아트샵'의 데이터를 이용하여 프로토타입을 구축하였고 실제 소비자에 대한 적용가능성을 확인하였다. 제안하는 모형의 유용성을 검증하기 위하여 제안 상품추천시스템의 추천과 임의 추천을 통한 추천의 결과를 사용자에게 제시하고 제안된 추천에 대한 만족도를 조사한 후 대응표본 T검정을 수행하였으며, 그 결과 사용자의 만족도를 유의하게 향상시키는 것으로 나타났다.

• 한국소성가공학회:학술대회논문집
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• 한국소성가공학회 2007년도 춘계학술대회 논문집
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• pp.149-154
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• 2007

The zinc prosphate film treatments used to lubricating treatment of mostly cold forging processes. But there are several problems happened to lubricating treatment process such as happening harmful environment on person, complex lubrication processing occurring in energy and time consumption, eco-destructive and chemical by-product generation, the needs of waste disposal etc. As a result, a water-soluble lubricant was developed to replace the perfect or some of the zinc prosphate film in the world. In order to solve these problems, this study evaluated the performance of the typical water-soluble. In this study, for these requirement inquiry of two part. First, about possibility of replace zinc phosphate lubricant, quantitatively evaluation developed of water-soluble lubricant for cold forging vs zinc phosphate lubricant. Second, About optimization of coating Process use to equipment with practicable automatic coating Process. The performance evaluation of these lubricants was conducted using the double cup extrusion test and spike forging test. With the use of the commercial FE code DEFORM, friction factor calibration curves, i.e. cup height ratio vs. punch stroke and spike height vs. punch stroke, were established for different friction factor values. By matching the cup height ratio and the punch stroke and spike height vs. punch stroke from experiment to that obtained from FE simulations, the friction factor of the lubricants was determined. Survey of comparative analysis use to SEM that sprayed lubricant surface structure of grain shape and characteristic of lubricant performance based on grain shape and deformed lubricant surface expansion. As a result, developed lubricant were found to perform comparable to or better than zinc phosphate. And thought this result, innovatively cope with generated problem of existing lubrication process.

• 가정과삶의질연구
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• 제27권4호
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• pp.141-160
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• 2009

Recently, some policies for reducing standby power, which has quite an effect on electricity consumption, have been employed all over the world. This study surveys the present condition of standby power for major electric home appliances during three years and analyzes the result of technical development reducing standby power. It presents how the industry paid attention to applying the technique of reducing standby power to electric appliances and how it affects the product's energy efficiency. We survey the standby power's change for six items, which were selected from the major electric appliances available on the market. It analyzes the difference of standby power consumption between appliances with a standby power reducing technique and those without during the latest three years. The amount of the average standby power is also compared. The comparison data confirms that the industry's effort and application of reducing standby power contribution has contributed to increasing an appliance's energy efficiency. This study restricted the analyzed items to six appliances, which has been a low volunteered involvement in the standby power reducing program. It is important for reducing standby power consumption of appliances because it contributes to saving electric energy at home and abroad. The development of the standby power reducing technique is needed for more appliances. Along with the development of the standby power reducing technique in the industrial field, it also necessary for consumers to enlarge their understanding of standby power reduction for economic, social, and environmental values.

• 한국의류산업학회지
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• 제17권4호
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• pp.561-573
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• 2015

The influence of tourists on the retail market in Korea continues to grow, and China has become the largest outbound-spending nation in the world. Korea's retail industry must comprehend the sophisticated consumption behavior of Chinese tourists. Hence, we explored how the experiential value of shopping in Korea affected Chinese tourists' satisfaction levels regarding stores and products. Findings from this study suggest entertainment and escapism mediate the effect of experiential value on consumer attitudes toward products and stores. This research was conducted with Chinese female tourists who shopped in Korea during their latest visit to this country. CFA and SEM were implemented using AMOS 20.0. The analysis of survey data produced interesting results. Visual appeal, crowding, and service excellence had positive impacts on entertainment, and they had a positive influence on both store satisfaction and product satisfaction. Regarding escapism, crowding and economic benefits had positive impacts, whereas visual appeal and service excellence had no effects. Results showed that escapism had a negative influence on attitudes toward both products and stores. To be clear, escapism refers to the status of absorption by which consumers are highly occupied with pleasant feelings, therefore, shopping when the motive of escapism is high is likely to be less rational and more impulsive. In this study, the diverse roles of different emotions associated with entertainment and escapism in the context of tourism shopping were identified. The findings provide practical implications for developing retail strategies and highlight the importance of the experiential values of shopping for tourists.

• 한국융합학회논문지
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• 제8권11호
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• pp.279-285
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• 2017

본 연구는 문화체육관광부의 기초조사인 평가문항을 지표로 하여 조사 되었으며, 여러 연구학자들의 선행연구들을 토대로 가설을 설정하여 대나무 축제에 참여한 방문객을 대상으로 현장 설문조사를 실시하였다. 연구결과, 요인분석을 통해 축제서비스품질요인으로 행사장 시설(하드웨어), 홍보 및 안내, 프로그램의 3가지 요인이 추출하여 연구되었다. 연구 결과 홍보 및 안내 .463 으로 가장 큰 영향을 가지고 있음을 확인되었다. 또한 행사프로그램은 .446로 축제의 재방문의도에 영향이 크고, 긍정적 추천에도 영향을 가지고 있다고 조사되었다. 축제 만족도가 재방문과 추천에 미치는 영향결과 베타(${\beta}$)값을 조사한 결과 재방문 .584, 추천 .651으로 상관관계가 있는 것으로 나타냈다. 그동안 세계대나무 박람회와 담양의 축제를 통해 지속되어야 할 요인들을 제시해 보고, 재방문하는 방문객 니즈를 파악하고 담양의 관광서비스 4차 산업과 친환경산업과 융 복합연구에 시사점을 제시하고자 한다.

• 한국임상약학회지
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• 제17권1호
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• pp.19-32
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• 2007

Objectives : It is necessary to monitor consumption of drugs in order to enhance promote appropriate use of drugs. Defined Daily Dose(DDD) of World Health Organization(WHO) has been used for evaluating the amount of medicine use. However, DDD of some drugs must be determined for drugs in Korea which are not listed by WHO. Our formulary follows ourself classification and DDD of some drugs must be determined since they exist only in Korea. This study was aimed to determine DDD value using RAND Appropriateness Methods and evaluate the amount of antibiotics use using DDD value. Methods : J01 antibiotics of WHO anatomical therapeutic chemical(ATC) classification were extracted from drug formulary. Antibiotics list without DDD was identified to determine their DDD with comprehensive review of references and recommendation of experts. defined. Review of reference was executed. of Expert panels were comprised of clinical pharmacist and clinical doctors. Modified Delphi Method was applied by survey and consensus meeting. Amount of antibiotic use was calculated by DDD/1000 inhabitants/day in the national level using health insurance claim data. Results : The result of 1 round, DDD values of 28 ingredients were determined from the first round of consensus meeting. With 2nd round meeting, 3 ingredients were deleted and DDD of 17 ingredients were decided. Analysis of antibiotic use in health insurance claim data showed 22.97 DDD/1000 inhabitants/day in 2003 year. Conclusion : This study can contribute to the establishment of DDD assignment and thus quantifying drug uses.