중요한 생태계로서 습지는 막대한 직접적인 경제적 이익을 가져다줄 뿐만 아니라 확실한 생태학적·사회적 가치를 가지고 있다. 습지의 고유한 생태적 서비스기능과 사회·경제적 가치는 국가 및 세계적 생태환경 안보와 사회적 지속가능성을 보장하는 중요한 전략적 자원일 뿐 아니라 인류의 생존 및 발전과 관련된 다양한 제품과 서비스를 제공할 것으로 기대된다. 본 연구는 중국 하북성 소재 형수호 습지를 연구 대상으로 습지의 생태계 서비스기능을 객관적이고 다층적으로 논의한 것이다. 본 연구에서는 시장가치법, 여행비용법, 성과참조법, 그림자공학법, 탄소세법 그리고 생태가치법 등 다양한 생태계서비스에 대한 가치평가 방법을 채택함으로써 균형적인 습지의 물질 생산가치, 수자원 공급가치, 레저 관광가치, 과학연구 교육가치, 홍수조절 가치, 수질정화 가치, CO2흡수와 O2배출 가치 그리고 생물서식지 가치를 평가하였다. 또한 내재가치 측면에서는 조건부 가치평가법을 사용하여 응답자의 지불의사에 미치는 영향을 분석하였다. 연구 결과를 개괄하면 형수호 습지의 내재가치는 사용가치보다 컸는바 이는 간접사용가치가 직접사용가치보다 크다는 것을 시사하는 것으로 습지의 생태서비스기능이 물질생산 등의 경제적 가치를 상회하고 있음을 반증한다. 본 연구 결과가 형수호 습지생태계의 서비스 가치를 정확히 진단하고, 이를 바탕으로 향후 지속가능한 방법으로 습지를 보호 개발하는 데 기초자료로 활용되기를 기대한다.

PURPOSES : Recently, increasing number of local governments are introducing on-demand public transportation service in real time to improve the management efficiency of public transportation. In preparation for the autonomous driving era, the “autonomous public transportation mobility on-demand service in real time” is being developed in the public transportation sector to introduce on-demand public transportation. For this service to become the public transportation of the future, it must receive publicity. Therefore, in this study, indicators were selected to evaluate the publicity of the autonomous public transportation mobility on-demand service in real time, and a survey was conducted among the general public to examine the validity of the indicators. METHODS : To secure the publicity of on-demand public transportation in real time, the goal of the service was first set. Second, the keywords of the service were analyzed to define the publicity requirements of this service. Based on the analyzed keywords and definition of publicity, service indicator types were classified, and the indicators were defined by type. A user satisfaction survey was conducted on the final selected indicators to improve the degree of completion of indicator development. The user survey was conducted by presenting selected publicity indicators to respondents responding on a five-point scale to determine whether each indicator could satisfactorily evaluate publicity. RESULTS : When examining various previous research cases and the contents required for autonomous public transportation mobility on-demand service in real time, the required items of publicity indicators were found to be “safety” in terms of “autonomous driving” and “convenience” in terms of “demand response.” Publicity indicators were developed according to these three items. Thirty-one indicators were developed, and a satisfaction survey was conducted on the general public for each indicator. In the survey, most of the indicators scored 3.5 points or higher, indicating that the indicators were generally well defined. Users gave the highest score to “fairness” among the three items, and “reasonable fairness” was found to be a necessary item as a publicity indicator. CONCLUSIONS : In this study, evaluation indicators were selected to secure the publicity of autonomous public transportation mobility on-demand service in real time, and a satisfaction survey was conducted for each indicator. Most of the indicators showed a score of 3.5 or higher, indicating that they were generally well defined. However, this study has a limitation in that it surveys the general population. In future, experts should be included in the survey to increase the degree of completeness of the public indicators.

동물 화분매개는 대부분 벌과 파리 등의 곤충에 의해서 이루어지는 매우 중요한 생태계 서비스 중 하나이다. 농업생산성의 유지와 영양분의 안정적 공급은 인류 복지의 근간이 된다. 이 연구는 한국 농업에서 화분매개가 식량 생산 증진에 미치는 기능을 평가하였다. 2015년 농업총조사, 농촌진흥청 농업 소득자료집, 기타 시장가격 자료 등의 농작물 재배와 생산액에 대한 자료에 화분매개 의존도를 반영하였다. 12개의 식량작물, 19개 과수, 18개 노지 채소와 13개 시설 채소 그리고 9개의 특용작물 등 71개 작물을 대상으로 한 분석에서, 전체 작물의 화분매개 의존도는 평균 29.2%이었으며, 식량작물이 가장 낮은 7.5%로 나타났다. 화분매개 의존량은 전체 농작물의 17.8%이었으며 그 경제적 가치는 6조 8.5천억원 (65.1-71.9천억원)으로 추정되었다. 화분매개 의존 생산량은 시설 과채류에서 49.2%로 가장 높았고 과수가 42%, 특용작물이 35.9%를 차지하 였다. 본 연구를 통해 곤충 화분매개는 한국 농업 생산에서 핵심적 과정이며 식량-영양안보적 관점에서 보호증진해야 하는 과정임이 분명해졌다. 농업에서 화분매개자를 보호하고 화분매개서비스를 강화할 수 있는 관리 전략으로 병해충-화분매개 통합관리(IPPM)개념과 추진 전략에 대하여 추가적으로 논의하였다.

This study examined the dietary habits and nutrition quotient (NQ) scores according to leftover food during school meal services among middle school students in the Gyeonggi region. A survey on the dietary habits was conducted among 405 male and female middle school students located in Seongnam City, Gyeonggi Province. The amount of leftover food in the school meals was surveyed using the visual method through a questionnaire over two days. The survey was conducted from July 8, 2019, to July 12, 2019. After calculating the average total leftovers of each student over the two days, they were categorized into the following three groups: the top third was the large leftover group. The middle third was the medium leftover group, and the lower third was the small leftover group. The characteristics of the groups that had leftovers were analyzed. Female, normal-weight, and underweight students accounted for a greater proportion of the large leftover group than male, overweight, and obese students. The rates of selective eating and compliance with new food intake were significantly lower in the large leftover group than in the small leftover group. A comparison of the nutrition quotient for the adolescent (NQ-A) scores of each group revealed significantly lower scores of the large leftover group for all factors (balance, moderation, food diversity, practice, and environment) than the small leftover group. Therefore, there are statistically significant differences in the dietary habits, nutritional quality, and eating behaviors of middle school students that are associated with the amount of leftover food during school meals.

본 연구에서는 어린이집 급식실 실내공기와 급식테이블 및 조리종사자 손의 미생물학적 안전성을 평가하고자 하였다. 본 실험에서 사용된 재료는 어린이집 조리 종사자 24명의 손과 어린이집 18곳의 급식테이블 및 93곳의 실내공기를 실험대상으로 하였다. 조리 종사자 손의 미생물 채취는 Glove juice법, 급식테이블의 표면 미생물 채취는 Swab 법에 따라 채취하였다. 어린이집 실내공기의 미생물 오염도는 자연 방치법에 따라 실험하였다. 조리 종사자 손의 일반세균 오염도는 평균 5.8±1.9 log CFU/hand로 나타났고, 대장균군 오염도는 평균 4.0±2.4 log CFU/hand로 나타났다. 급식테이블의 일반세균 오염도는 평균 4.3±3.0 log CFU/100 cm2 로 나타났고, 대장균군 오염도는 평균 2.6±3.3 log CFU/ 100 cm2로 나타났다. 어린이집 조리 종사자 손과 급식테이 블에서 B. cereus가 각각 2건씩 검출되었다. 실내공기 중 일반세균수 오염도는 평균 28±7.2 CFU/plate, 대장균군 오염도는 평균 3.1±2.9 CFU/plate로 나타났다. 또한, 실내공기 중 B. cereus 오염도는 평균 1.7±0.2 CFU/plate, S. aureus 오염도는 평균 1.6±0.5 CFU/plate로 나타났다. 이러한 결과를 종합해 볼 때, 어린이집 급식테이블 표면에 존재하는 미생물 오염도를 감소시키기 위한 식사 전 소독이 필요한 것으로 판단되었다. 또한, 실내공기 중 미생물 오염도 저감화를 위해 주기적인 환기와 급식 관계자들의 위생모, 마스크 및 위생복 등의 청결관리가 필요한 것으로 판단되었다.

Advances in information technology, communication and network technology are radically facilitating digital convergences as the integration of human, equipment, and space in the current industry 4.0 era. In industry 4.0 environment, the vast amount of information with networked computing technology can be simultaneously accessible even in limited physical space. Two main benefit points out of these information are the convenience and efficiency in their online transactions either buying things online or selling online. Even though there exist so many benefits that information technology can create for the people doing business over the internet there is a critical problem to be answered. In spite of many such advantages, however, online transactions have many dysfunctions such as personal information leakage, account hacking, and cybercrime. Without preparing the appropriate protection methods or schema people reluctantly use the transaction or would find some other partners with enhanced information security environment. In this paper we suggested a novel selection criteria that can be used to evaluate the reliable means of authentication against the expected risks under on-going IoT based environment. Our selection criteria consists of 4 steps. The first step is services and risk identification step. The second step is evaluation of risk occurrence step. The third step includes the evaluation of the extent of damage. And the final step is the assessment of the level of risk. With the help of the above 4 step-approach people can systematically identify potential risks hiding in the online transactions and effectively avoid by taking appropriate counter actions

Attitude and ability of frontline employees in customer interaction influence company reputation. Since respective theory is scarce, this paper – based on a qualitative interview study – presents an examination of the status quo of the topic in luxury watch retail. Theories of service quality, identity and impression management are briefly addressed.

The main focus of the current article is to introduce and apply an evaluation model to an rNSET program for non-native speaking English teachers. The rationale behind why an rNSET program evaluation should make use of a synthesized approach to look at diverse variables from a balanced perspective is provided. While using the model as a guideline, this article explores the way quality drivers in an intensive teacher education program are interconnected to affect program quality. What/why/how the case study foreign teacher educator does needs to be examined through teacher trainees' perceptions and reactions, who better know context variables in their own classrooms. It turned out that the trainer's teaching quality was affected a lso by the socio-cultural variables within and beyond his classroom area. [n addition, it was revealed that discrepancies between stakeholders' beliefs and practices could lower the program quality as well. The article illustrates the process of how quality drivers and context variables affect each other to determine program quality and warrants more attention from ELT evaluators.

This paper describes an evaluation of the in-service structural performance of a glass fiber-reinforced polymer (GFRP) slab bridge. This first all-GFRP slab bridge was installed in Korea on May 2002. The GFRP slab bridge is a simply supported, its length is 10.0 m, and is designed to carry two-lane traffic and has an overall width of 8.0m. The GFRP slab bridge is a sandwich structure with a corrugated core, fabricated by hand lay-up process with E-glass fibers and vinyl ester resins. The assessment of in-service performance for the GFRP slab bridge in 2004, 2011 includes a field load testing identical to that performed in 2002. The assessment indicates that the GFRP slab bridge has no structural problems and is structurally performing well in-service as expected.

The research discussed in this paper was conducted to evaluate an intensive English teacher training program (IETTP) and to consider implications for in-service English teacher education. Data was gathered from a variety of sources including trainees’ self-evaluation of their teaching and English language proficiency, feedback on sessions of the program, interviews, and documents. The analysis of the gathered data revealed that the trainees perceived their teaching improved. The comparison of the pre- and post-tests of language skills showed that the level of the trainees’ English language significantly improved. The trainees’ feedback on the program and the trainers revealed that they were satisfied with the course components, and with the trainers’ enthusiasm, materials, motivation and demonstrations. It was also found that the program management was process-focused; the evaluation was conducted on a regular basis and the results were fed back into the program. The findings of the program evaluation supported the conclusion that the trainees benefitted from the programs and that the goals of the training program were achieved at a satisfactory level in most areas. The findings provide guidelines for the further development of IETTPs, and implications for policy-making on English teacher education.

The present evaluation research was conducted to provide program decision makers with judgements about the intensive in-service teacher training (INSET) program"s worth or merits in relation to important criteria. It also purports to provide program staffs with useful information in improving their INSET programs. Setting boundaries and analyzing the context were followed by the procedure of identifying and selecting the evaluation questions and criteria. The overview of recent developments in English language teacher training provided the underlying principle for setting the criteria for evaluation. The criteria were used to describe the characteristics of a successful language teacher training program or implementation. They included features such as goals, curriculum, personnel, and support. Using the specified checklist, evaluation was carried out on the current intensive English language teacher training courses. Information on each area of the checklist was collected from available sources, analyzed and interpreted qualitatively as well as quantitatively. From the findings of the present evaluation study, some implications are drawn for making policies on INSET, for improving the teacher training programs under investigation, and for establishing and operating similar INSET programs.

The purpose of this study was to analyze evaluation variables of service quality of Korean restaurant especially focused on cold noodle restaurants(CNR). The data were analyzed about customer’s expectation of food service quality, service quality was improved by employee’s service in restaurant and employee education in the focus on CNR. The survey was carried out 423 customers and 50 employees in Seoul and Kyunggi province. All statistical data analyses were conducted using the Statistical Package for the Social Science(SPSS version 10.0). The consumer’s evaluation score of service quality were significantly different by consumer’s characteristics. The well planned service at CNR must be developed according to consumer variables such as sex and age group. The evaluation score of service quality were not significantly different by seasonal variation and consumer’s menu selection. The evaluation score of service qualities in CNR were significantly different between customer variables with employees variables. All of the evaluation points of service quality in employees were significantly higher than customers. This result was show that well-trained employees were important factors in consumer satisfaction. Through the employee education program, consumer oriented service mind mort be to developed in employees and employees’ recognition about the importance of service increased the satisfaction of customer using CNR.

It is very important to delivery timely and safely items in logistics. So, the home delivery service system is introduced by many enterprises. Also, the beginning in 1990's, the rapid increase of automobile increased logistics cost and led to road stagnation. So, the railway transportation use in logistics can be considered. The railway transportation in home delivery service system can overcome the limit of transportation by land. This study evaluate railway transportation in home delivery service system by economical efficiency and timeliness.

염해에 노출된 콘크리트 구조물의 내구수명을 정량적으로 평가하기 위해서는 사용 배합을 통하여 확산계수를 평가하고 이를 이용한 염화물 침투 해석이 필요하다. 본 연구에서는 비말대에 노출된 콘크리트 구조물에 대하여 촉진 확산계수를 NT BUILD 492 및 ASTM 1202를 통하여 평가하였으며, 기존의 연구를 이용하여 겉보기 확산계수를 도출하였다. 사용배합의 특성과 가장 보수적인 조건인 임계 염화물량과 표면 염화물량을 고려하였으며, Life 365 ver.2 프로그램을 이용하여 외벽 및 기둥구조의 내구수명을 평가하였다. 10년 및 15년의 Built-up period의 변화에 대해서는 내구수명은 큰 차이를 보이지 않았으며. 슬래그를 사용한 두 개의 배합에서는 높은 시간의존성 지수와 낮은 초기 염화물 확산계수로 인해 75년 이상의 높은 내구수명이 확보되었다.

본 논문은 모바일 RPG게임 내 인앱 결제 서비스 이용자들에 대한 사용성 평가를 통해 향후 국내 모바일 RPG게임 개발자 및 기획자들에게 업데이트 및 개발에 필요한 자료를 모색하고 제안하는 데 그 목적을 두었다. 모바일 게임 '리니지M'의 인 앱 결제 서비스를 주로 이용하는 이용자들을 대상으로 정량적 평가를 위한 사용성 평가를 실시했다. 사용성 평가를 위한 도구로는 피터모빌(Peter Morville)이 정의한 'The User Experience Honeycomb'를 기준으로 설계한 설문지를 통해 설문조사를 하였다. 이러한 통계결과를 접근성, 가치성, 신뢰성, 매력성, 사용성 총 5가지 측면으로 나누어 분석하였고, 이를 통하여 새로운 모바일 RPG게임 개발에 도움을 줄 것으로 기대한다.

This paper evaluated service life in a RC continuos beam with 2 spans considering loading condition, cold joint, and substitution ratio of GGBFS. Based on the previous test results for 91 and 365 days, changing ratio of diffusion coefficients with applied stress are normalized considering substitution of GGBFS and cold joint. For evaluation of service life in RC continuous beam with 2 spans, non-linear analytical model is adopted. The reduction of service life with cold joint and loading condition should be considered in maintenance even if GGBFS which shows excellent resistance to chloride ingress is used for the RC structures.

콘크리트 구조물은 경제적이고 내구적인 구조물이지만 철근부식에 따라 성능이 내구적, 구조적 저하하게 된다. 최근들어 내구성설계가 도입되고 있는데, 콘크리트 구조물의 내구수명은 해수에 같이 노출되더라도, 국부적인 노출환경과 설계방법에 따라 다르게 평가된다. 본 연구는 3.5년∼4.5년 해수에 노출된 4개의 RC 교각을 대상으로 실태조사를 수행하여 25개의 콘크리트 코어를 채취하였으며, 전염화물을 평가하여 표면염화물량 및 겉보기 확산계수를 도출하였다. Fick's 2nd Law를 기본으로 한 결정론적 방법과 임계확률을 고려한 확률론적인 방법을 수행하여 내구수명을 각각 평가하고 분석하였다. 확률론적인 방법은 보수적으로 평가되었으며, 같은 구조물이라 하더라도 간만대 및 40.0 m 이상의 비말대에서는 비교적 낮은 내구수명이 평가되었다. 본 연구에서는 코어채취높이에 따른 염화물 거동 분석과 내구성 설계방법의 현시점에서의 한계성이 분석되었다.

Concrete represents the mostly widespread structural material for construction of buildings due to its mechanical properties such as durability, variability and availability of resources. But, cement production is associated with large energy consumption and consequently with high CO2 emissions. This paper analyzed the amount of CO2 emissions in various concrete mix design on the viewpoint of service life periods using Korean LCI DB.

강교의 정확한 피로균열의 발생원인 또는 교량의 피로안전성을 검토하기 위해서는 적합한 응력이력 측정이 요구된다. 그러나 실제 현장에서의 응력이력 측정은 현장 여건과 경제성, 작업성 등의 이유로 1개소의 스트레인게이지를 설치하여 계측을 실시한다. 이는 특정 구조물의 실제 치수와 게이지 길이 용접부 응력집중 등의 영향을 고려하지 못하고, 구조 모델링을 통한 응력해석에도 많은 어려움이 있다. 그러므로 본 연구에서는 용접단부에 다수의 게이지 설치, 최소 길이 게이지 사용, 설치 위치 등의 개선된 방법을 적용하여 용접단부와 스트레인게이지 설치 거리에 따른 변형률 진폭에 대한 상관식을 도출하고 국제용접협회 (IIW)의 제안식과 비교하였다. 또한 적합한 피로등급 상세범주 선정을 통해 공용중인 교량의 피로손상도 평가 및 잔존수명을 예측하고 분석하였다. 그 결과 피로균열 발생빈도가 높은 부재파악, 용접단부와 게이지 설치 거리에 따른 변형률의 정량적 파악으로 정확한 피로손상도 평가 및 잔존수명 예측이 가능하므로 향후 교량의 응력이력계측 시 개선된 방법을 적용해야 할 것이다.