• 상하수도학회지
• /
• 제25권1호
• /
• pp.75-84
• /
• 2011

This study was conducted to provide a basic information for the establishment of operation and treatment processes in sewer system of Nakdong river basin to minimize the overall pollutants loading to water body. Sewage flowrates were regularly measured and monitored at various sampling points of newly-built separated sewer system located in G City GA sites. To assess the inflow sewage flowrate, various calculating methods such as water-use evaluation, average-minimum daily flow quality evaluation, minimum daily flow evaluation, night water-use evaluation were used. Average I/Is were calculated except water-use evaluation. Average I/Is were found to be 6.5 $m^{3}/d$, 3.5 $m^{3}/d$, 7.7 $m^{3}/d$ at GA-1, GA-2, GA-3 points respectively. I/I ratios of three areas were found to be 4.8 %, 2.0 % and 2.7 % respectively and were obviously lower than those of the other separated sewer systems as shown in the previous studies.

• 무역학회지
• /
• 제47권4호
• /
• pp.161-176
• /
• 2022

Most companies are achieving economic benefits by producing products in the form of bi-national products, but there are also negative consequences such as reduced brand power, so strategic bi-national product planning and branding is essential. In order to actively reflect these practical needs, this study conducted a comprehensive and easy-to-generalize evaluation of Bi-national products that has been somewhat underdeveloped in previous studies. To this end, the selection and evaluation criteria of the products to be investigated were differentiated. This is to classify the products by place of use and the purpose of use so that the majority of bi-national products can be included, and then use the combination to derive the specific products to be evaluated for bi-national products. The evaluation of the product identified the phenomenon of psychological conflict among consumers due to the country of origin discrepancy at the level of decreasing brand authenticity. The above research design is an evaluation method that can encompass bi-national products as a whole, rather than an evaluation of a specific product or product line that is mainly reported in previous studies, and it is also very easy to apply to practice because it allows us to more carefully identify changes in psychological attitudes.

• Journal of Dairy Science and Biotechnology
• /
• 제38권2호
• /
• pp.99-111
• /
• 2020

Probiotics are actively being studied for their efficacious anticancer, anticholesterol, and antidiabetic properties. As novel probiotic strains are being developed continuously, new strain-specific safety issues may be reported. Therefore, a procedure for the safety evaluation of probiotic strains is needed. In this study, we investigated the current status of domestic and foreign guidelines for the evaluation of safety of probiotics and suggested a general probiotic safety evaluation process. In other countries, the guidelines for probiotic evaluation are provided and managed separately. However, in Korea, general guidelines are provided regarding the use of functional ingredients, and specific guidelines for the use of probiotics are lacking. A review step based on the characteristics of the probiotics has been introduced in the procedure for safety evaluation of probiotics. Additionally, it has been suggested that the safety evaluation process should consider the results of the functional and genomic analysis for strain identification. Moreover, the factors to be evaluated are presented separately for the notified and non-notified strains. The suggested evaluation procedure may ensure the safety of probiotics, thereby promoting enhanced utilization of probiotics as functional products.

• 정보화연구
• /
• 제11권2호
• /
• pp.225-233
• /
• 2014

오디오 산업은 프리미엄 산업으로써 나날이 발전 하고 있다. 입체 음향 시스템에 관한 연구는 많이 진행 되고 있다. 하지만 Audio database, algorithm, evaluation, metadata scheme 이 모두 각각 이루어지고 있다. 하나의 시스템에서 만들어진 audio 알고리즘을 평가 하고, 저장 할 수 있다면 입체 음향 오디오 연구 발전에 도움이 될 것이다. 그래서 이 논문 에서는 실감형 3D 오디오의 알고리즘을 시스템 적으로 평가 할 수 있는 Database Architecture 제안 하고, 이 Database system 구현을 위하여 XML metadata scheme를 정의 하였다. 본 논문에서는 새로운 오디오 평가 DB를 제시하고, 이를 체계적으로 구현하기 위한 설계를 제시하고자 한다.

• 대한전기학회:학술대회논문집
• /
• 대한전기학회 1998년도 하계학술대회 논문집 C
• /
• pp.1150-1152
• /
• 1998

Recently, our electric industry confronts a structural change and high competiveness environment in the course of deregulation. Rapid growth in electricity demand, financial need for new power plant construction, and envionmental problems have led to search for more efficient energy production and energy conservation techmologies. Especially, residential and commercial buildings consumes 40% of electricity demands and building energies are increasing more and more in Korea. The purpose of this paper is to analyze the electricity use of commercial buildings by end-use. Also, we will use it as a basic informations of DSM potential evaluation and evaluation process based on different approach by sector and type of potential.

• 한국항해항만학회:학술대회논문집
• /
• 한국항해항만학회 2016년도 춘계학술대회
• /
• pp.103-105
• /
• 2016

신(2015) 등이 발표한 선박 당직 중 스마트폰 사용이 당직수행에 미치는 영향에 관한 선행연구에서 설문조사를 통해 선박에서 스마트폰을 사용할 수 있는 환경(항해 중 36%)이 마련되었음을 확인하였고, 항해사들의 위험도 조사 설문에서 스마트폰 사용이 사용 전보다 약 2배 위험하다고 분석되었다. 본 연구는 일정기간 항해사로 승선 경험을 가진 자들을 실험 대상자로 시뮬레이션을 실시하여 해상교통안전진단상 선박 조종 시뮬레이션 평가 분석 항목인 선박의 근접도 평가, 선박의 제어도 평가, 조종자의 주관적 평가를 기초로 스마트폰의 사용이 항행안전에 미치는 위험도를 평가하였다. 또한 스마트폰 사용 유무에 따른 위험 상황 인지 시간을 측정하여 스마트폰의 위험성을 정량적으로 나타내었다.

• 서비스연구
• /
• 제11권4호
• /
• pp.67-76
• /
• 2021

코로나펜데믹의 영향으로 비대면 서비스에 대한 개발의 속도가 빨라지면서, 스마트러닝의 중요도가 커지고 있다. 본 연구는 스마트러닝 시스템의 이용만족도를 평가하는 필요성에 따라서 학습장애 중재 서비스(www.basic-edu.net)의 사용성 평가 결과를 중심으로 평가에 이용된 변수 간의 인과관계를 활용하는 이용만족도 평가모형에 관한 것이다. 이를 위해서 스마트러닝과 학습장애 중재 서비스, www.basic-edu.net, 학습장애 중재 시스템의 사용성 평가, 이용만족도 평가모형에 관한 이론적 연구를 진행하였고, 그 결과에 기반을 두어 스마트러닝 시스템의 이용만족도 평가모형에 관한 가설을 제시하였다. 실험방식은 전국의 40명의 학생과 학부모를 대상으로 www.basic-edu.net 서비스를 이용하게 한 후 그에 대한 사용성 평가를 받았고, 이 데이터를 활용하여 이용편의성, 흥미성, 자가학습성, 이용만족도라는 4가지 변수를 기반으로 회귀분석을 활용하여 가설의 검증을 시도하였다. 가설의 검증 결과 H1~H4까지의 모든 가설들의 인과관계는 그 관계가 유의미한 것으로 나타났다.

• Asian Pacific Journal of Cancer Prevention
• /
• 제14권6호
• /
• pp.3455-3459
• /
• 2013

Background: Smoking and smokeless tobacco use are almost always initiated and established during adolescence. More than 80% of adult smokers begin smoking before 18 years of age. The main objective of the present study is to assess the feasibility of preventing adolescent tobacco use with the help of a specially designed tobacco control program. Materials and Methods: A cross sectional survey on tobacco use and related health effects was conducted using a structured questionnaire in 13 randomly selected schools in Kannur district of Kerala. These students were followed for a period of one academic year with multiple spaced interventions such as anti-tobacco awareness classes, formation of anti-tobacco task forces, inter-school competitions, supplying IEC (information, education and communication) materials and providing a handbook on tobacco control for school personnel. Final evaluation was at the end of one year. Results: There were 4,144 school children who participated in the first phase of the study. The prevalence of tobacco smoking and chewing habits were 9.85% and 2.24% respectively. Ninety-one percent had parental advice against tobacco use and only 3.79% expressed desire for future tobacco use. The final evaluation witnessed a sharp decline in the current tobacco use as 4.68%. We observed a statistically significant difference towards the future use of tobacco (p<0.001) and awareness about the ill effects of passive smoking (p<0.001) among boys and girls. Further a significantly increased knowledge was observed among boys compared to girls about tobacco and oral cancer (p=0.046). Conclusions: The comprehensive school based tobacco control project significantly reduced the tobacco use pattern in the target population. School tobacco projects incorporating frequent follow ups and multiple interventions appear more effective than projects with single intervention.

• 한국IT서비스학회지
• /
• 제7권4호
• /
• pp.151-165
• /
• 2008

This study suggests the organization-level standard(model and process) for quality evaluation of information systems(IS) in non-use organizations despite international standards(ISO/IEC 9126 and ISO/IEC 14598) and national standards(KS X 9126 and KS X 14598) related to quality evaluation of IS. The standard in this study is composed of quality evaluation processes, a quality model, and quality metrics. The weights of the attributes and the sub-attributes in the quality model were calculated by an analytic hierarchy process(AHP). The minimum level and the target level of each metrics were determined by brainstorming of the committee. Furthermore, the case study for the investigation of the applicability and the usability of the suggested organizational standard in the real IS development project was performed. For gaining significant benefits of the standard, both the diffusion and the experience accumulation by its continuous use are needed.

• Geomechanics and Engineering
• /
• 제29권3호
• /
• pp.369-376
• /
• 2022

Accurately evaluating and predicting the performance of facilities is a key task in establishing a maintenance strategy for facilities. The importance of performance evaluation is becoming more pronounced, especially when the aging of facilities requires a huge budget. In this study, performance assessment models were developed for road and railway tunnels. Delphi analysis was performed to identify sub-elements necessary to evaluate the performance of a tunnel. The relative importance of the evaluation factors was derived from the AHP analysis. The correlation analysis was performed between each assessment factor and the final result to verify the significance of the model. For the correlation analysis, the survey data measured through precision safety diagnosis in tunnels in use was applied. The cost effectiveness analysis was also conducted according to the scenarios with different composition of performance factors in order to improve the practical applicability of the evaluation model developed in this study.