This paper compares the preceding study on the development of evaluation indicator for ATOs for mechanics and vocational ability evaluation system implemented by the Ministry of Employment and Labor to support various vocational training. This paper also examines the systems for the protection and possible options of the consumer through disclosed notification and evaluation cases such as the traffic service evaluation system in the aviation sector. By extension, in order to ensure quality management and enhanced capability of flight schools, this paper aims to present a methodology for introducing an evaluation model certified by ATOs for pilots that emerges from comparing the preceding study on various vocational training applied with the CIPP evaluation model of Stufflebeam and the procedures for the designation of ATOs for pilots and follow-up management thereon in Korea, dividing it into four stages, which are the preparation stage, screening stage, designation stage and management stage, and applying the items and performance indicators to be carried out at each stage.

A corrugated steel plate wall (CSPW) system is advantageous to secure the strength and stiffness required for lateral force resistance because of its high out-of-plane stability. It can also stably dissipate large amounts of energy even after peak strength. In this paper, a preliminary study has been carried out to use the CSPW system in the seismic retrofit of existing reinforced concrete (RC) moment frame buildings. The seismic performance for an example building was evaluated, and then a step-by-step retrofit design procedure for the CSPW was proposed. An equivalent analytical model of the CSPW was also introduced for a practical analysis of the retrofitted building, and the strengthening effect was finally evaluated based on the results of nonlinear analysis.

본 연구는 2016년부터 2019년까지 3년에 걸쳐 수행 된 파라과이 KOPIA 센터의 참깨 시범마을 사업의 경영성과와 투자타당성을 분석하기 위한 목적으로 수행되었다. 시범사업 참여농가는 1,172천~2,928천Gs/ha의 수익이 증가하는 것으로 나타났으며, 가구 기준으로 산출할 경우 연간 760$ 이상의 소득 증가가 발생하는 것으로 분석되었다. 시범사업 투자의 타당성에 대한 평가지표로 활용된 B/C Ratio는 1.52로 분석되어 경제적 타당성이 있는 것으로 평가되었다. 시범사업에 참여한 농가들의 만족도를 7점 척도로 분석한 결과 시범사업의 전반적인 만족도, 소득증가에 대한 만족도, 수량증가에 대한 만족도 모든 항목에 대해서 만족함, 매우 만족함에 응답하였다. 계속 참여의향 역시 매우 높은 것으로 나타났으며, 종자의 균일성에 대한 만족도가 6.9점으로 가장 높았다. 성공적으로 평가되는 파라과이 KOPIA센터의 참깨 시범마을 사업의 성공요인은 첫째, 적합품목의 선택, 둘째, 현지 적응 신품종의 선발 및 보급, 셋째, 수동파종기, 배무식 분무기, 공동경운을 도입하여 생산성을 향상하고, 노동력을 절감, 넷째, 적정시비량, 윤작체계, 친환경 엽면시비 등의 재배교육을 통해 농약과 비료비는 절감하고, 수확량 증가와 품질향상을 도모한 것 등이다. 특히, 수익성이 떨어지고 있는 목화의 대체품목이며, 생산 증가에도 가격하락 위험이 적은 수출품목인 참깨를 선발한 부분과, 단기간에 이루어지기 어려운 현지적합 품종을 선발했다는 점, 수동파종기와 배무식 분무기, 녹비작물, 지렁이액비 등 저소득 농업인이 지속적으로 수용 가능한 기술이 보급되었다는 점을 높이 평가할 수 있다.

최근 국내에서 발생한 경주지진 및 포항지진이 도심지 및 원자력발전소 주변에서 발생함에 따라 인근 주요 구조시스 템에 피해를 발생시킨 바 있다. 이에 따라, 본 연구는 원전 배관계통의 지진 거동 특성을 실험 및 해석적으로 규명하고, 이를 바탕으로 내진성능을 평가하는 연구를 수행하는 것을 목적으로 한다. 이를 위하여, 원전 배관계통을 대상으로 한 진동대 시험 결과를 바탕으로 배관 수치해석 모델을 수립하고 이를 시험 결과를 통하여 검증한다. 또한, 이러한 검증된 수치해석모델을 기반으로 배관계통의 내진성능을 평가한다. 수치해석 모델 검증 결과, 수립된 수치모델의 고유진동수, 감쇠비 및 변위 응답이 진동 대시험 결과와 유사한 것으로 나타났다. 이러한 검증된 수치모델을 바탕으로 평가된 내진성능 값은 기존 원전 배관의 내진성능 값의 범위와 비교적 유사한 값으로 평가되었다. 이는 설계기준지진을 크게 상회하는 값이지만, 원전 주요 기기 임을 감안할 때 추가적인 내진성능 상향이 확보되면 원전 지진 안전성 향상에 많은 기여를 할 수 있을 것으로 판단된다. 본 연구의 결과는 추후 원전 배관계통 내진성능평가를 위한 정량적인 자료로 활용이 가능할 것으로 판단된다.

In this research, a simulation program is developed in order to investigate non steady-state cornering performance of 6WD/6WS special-purpose vehicles. 6WD vehicles are believed to have good performance on off-the-road maneuvering and to have fail-safe capabilities. But the cornering performances of 6WS vehicles are not well understood in the related literature. In this study, 6WD/6WS vehicles are modeled as a 18 DOF system which includes non-linear vehicle dynamics, tire models, and kinematic effects. Then the vehicle model is constructed into a simulation program using the MATLAB/SIMULINK so that input/output and vehicle parameters can be changed easily with the modulated approach. Cornering performance of the 6WS vehicle is analyzed for brake steering and pivoting, respectively. Simulation results show that cornering performance depends on the middle-wheel steering as well as front/rear wheel steering. In addition, a new 6WS control law is proposed in order to minimize the sideslip angle. Lane change simulation results demonstrate the advantage of 6WS vehicles with the proposed control law.

이 연구의 목적은 인공신경망 기법을 이용하여 사면의 내진 성능을 비교적 정확하면서도 효율적으로 예측하는 모델을 도 출하는데 있다. 사면의 내진 성능은 지진입력 및 사면모델의 무작위성 및 불확실성으로 인하여 정량화하기 쉽지 않다. 이러한 배경 아래 사면에 대한 확률론적 지진 취약도 분석이 몇몇 연구자에 의해 수행되었고, 이를 기반으로 다중 선형회귀분석 을 통하여 사면 내진성능에 대한 닫힌식이 제안된 바 있다. 그러나 전통적인 통계학적 선형회귀분석은 다양한 조건의 사면과 이에 따른 내진 성능 사이의 비선형적 관계를 정확하게 표현하지 못하는 한계를 보였다. 이에 따라 본 연구에서는 이러한 문제점을 극복하고자 인공신경망 기법을 사면 내진성능 예측 모델을 생성하는데 적용하였다. 도출된 모델의 유효성은 기존 의 다중 선형 및 다중 비선형 회귀분석을 통한 모델과 비교하여 검증하였다. 결과적으로 이전 연구의 전통적인 통계학적 회귀 분석을 통한 모델과 비교 결과, 기본적으로 인공신경망 기법을 통하여 도출된 모델이 사면의 내진성능을 예측하는데 있어 우수한 성능을 보여주었다. 이러한 정확도 높은 모델은 향후 확률에 기반한 사면의 지진취약도 지도를 개발하고, 주요 구 조물의 인근 사면으로 인한 리스크를 효과적으로 평가하는데 활용될 수 있을 것이라 기대된다.

PURPOSES: This study aimed to evaluate the performance of a model developed for road surface temperature change pattern in reflecting specific road characteristics. Three types of road sections were considered, namely, basic, tunnel, and soundproof tunnel. METHODS: A thermal mapping system was employed to collect actual road surface temperature and locational data of the survey vehicle. Data collection was conducted 12 times from 05:30 am to 06:30 am on the test route, which is an uninterrupted flow facility. A total of 9010 road surface temperature data were collected, and half of these were selected based on a random selection process. The other half was used to evaluate the performance of the model. The model used herein is based on machine learning algorithms. The mean absolute error (MAE) was used to evaluate the accuracy of the estimation performance of the model. RESULTS: The MAE was calculated to determine the difference between the estimated and the actual road surface temperature. A MAE of 0.48℃ was generated for the overall test route. The basic section obtained the smallest error whereas that of the tunnel was relatively high. CONCLUSIONS: The road surface temperature change is closely related to the air temperature. The process of data pre-processing is very important to improve the estimation accuracy of the model. Lastly, it was difficult to determine the influence of the data collection date on the estimation of the road surface temperature change pattern due to the same weather conditions.

Introduction This research was conducted in order to examine the influence of corporate innovation such as product innovation and profit model innovation towards sustainable competitive advantage and marketing performance. In B2B, the two biggest concerns of a manufacturing company are to provide products suitable for customer's business and to secure profitability of company business. Especially in an age when customer needs are diverse, companies need a lot of investment and effort to differentiate their products. Even though it is doubtful whether products that achieve such differentiation can achieve successful business results. Unless it is a monopoly, there are limitations in satisfying individualized and customized market trends and diverse customer needs with the technology and product competitiveness of companies alone. Therefore, corporate innovation requires a comprehensive approach in terms of product innovation and business model innovation. And product innovation and continuous profit model innovation for improving the company's profit is a very important factor. In order to achieve these two core values, the company conducts efficient operations internally to continuously develop products that meet customer needs and to conduct close customer relationship management to maintain a firm brand position in the market. Therefore, this study is designed to investigate how the innovation efforts of companies in B2B affect the sustainable competitive advantage development and market performance. Unlike previous researches on corporate innovation which included product innovation, this study included profit model innovation as corporate innovation to investigate the effects of profit model innovation on the actual marketing performance of firms. In addition, it is distinguished from the existing customer-oriented competitive advantage study (Porter, 1985) by studying the effects of sustainable competitive advantage on market performance by defining and applying sustainable competitive advantage variables from the perspective of internal marketing efforts. Theoretical Development Firms' needs and efforts for technological innovation and product innovation are very important for sustainable growth through securing economic benefits of firms (Hauser et al., 2006, Dave et al., 2013). In order to achieve competitive advantage (low cost, product differentiation), companies pursued technological innovation and product innovation through R & D investment. However, in terms of providing a total solution that satisfies the needs of various customers in the global competitive environment and improving the profitability of the company, it is difficult to explain the innovation area of the company only by technological innovation and product innovation. Therefore, in this study, it defines the corporate innovation including the business model innovation such as profit model from the perspective of the system operation to the innovation area of the company according to the claim that the business model mediates the firm and business performance (Markides, 2006; Baden -Fuller & Haefliger, 2013). And using sustainable competitive advantage in terms of product leadership, operational excellence, and customer intimacy, this study analyzes the effects of these firm innovations on the sustainable competitive advantage and business performance. Corporate innovation is broadly categorized into three categories: process innovation, product innovation, and operational management innovation (Lee et al., 2013). And the Oslo manual classifies them as product innovation, process innovation, marketing innovation, and organizational innovation (OECD, 2005). In the past, where product-centered markets and external competition were stable, changes in product technology made business models largely changeable, so corporate innovation could be described as technological innovation and product innovation. However, the development of advanced technologies such as information and communication technology (ICT) requires that the field of corporate innovation activities be analyzed from a new business model perspective. This is because existing product innovation, process innovation, marketing innovation, and organizational innovation are insufficient to explain the birth and change of new business types occurring in the same industry. In addition, we can find examples of business model innovation as a type of corporate innovation in existing studies (Christensen, 1997; Christensen and Raynor, 2003; Markides, 2006; Taylor et al., 2012). Therefore, this study reflects these changes and includes business model innovation such as profit model as a type of corporate innovation. In addition, Porter (1985)'s traditional competitive strategy (low cost, product differentiation) has limitations in evaluating the impact of corporate innovation and analyzing its relationship with business performance. In order to compensate for this, we introduce three main variables: product leadership, operational excellence, and customer intimacy, which can segment the value domain of sustainable competitive advantage and measure strategic performance capability, as a sustainable competitive advantage (Treacy and Wiersema, 1995). Research Design In previous researches, it has focused on technological innovation and product innovation to achieve the competitive advantage of product for better business performance in competitive market. However, these studies do not adequately suggest corporate innovation direction for corporate’s sustainable growth in complex and evolving business environment. Therefore, this study redefines the domain of corporate innovation and sustainable competitive advantage and then analyzes the effect of corporate innovation and sustainable competitive advantage on business performance. The hypothesis to be analyzed through the research model is as follows: H1. Product innovation has a positive impact on sustainable competitive advantage. H2. Profit model innovation in Business model has a positive impact on sustainable competitive advantage. H3. Sustainable competitive advantage has a positive impact on marketing performance. H4. Product innovation has a positive impact on marketing performance. H5. Profit model innovation in Business model has a positive impact on marketing performance. <Figure 1 research model> To analyze this hypothesis, it surveyed 300 machinery manufacturing companies producing intermediate goods in Korea through questionnaires with 5 point Likert scale. And the results were analyzed using SPSS (ver. 24.0) and AMOS (ver. 24.0). Result and Conclusion The findings show that profit model innovation of business model has a positive effect on the sustainable competitive advantage. However, product innovation has only a positive effect on product leadership of sustainable competitive advantage. And the sustainable competitive advantage has had a positive impact on market performance. Profit model innovation of business model also has an impact on market performance but product innovation has not a positive effect on market performance. It is meaningful that the company has confirmed the importance of the profit model innovation as well as the existing product innovation as the corporate innovation direction to pursue continuously. A practical implication of this study is that rapid technological advances, market changes, and globalization, as Bashir and Verma (2017) argue, should change profit model of a business model in order to maintain a sustainable competitive advantage in B2B of manufacturing industry. In order to maintain a sustainable competitive advantage, business model innovation with a clear profit model is highly needed as a new management strategy for the future. The theoretical implication of this study is that the existing studies on corporate innovation are focused on technology innovation, and the effect of product innovation on business performance is relatively small. In particular, empirical studies on the effect of business profit model innovation on marketing performance were not enough. Therefore, it can be said that the fact that product innovation and business profit model innovation have an influence on market performance expands empirical research.

Introduction Service quality is becoming an important business factor even in the business-to-business markets. Actually, the various service factors such as technical level, lead time and after-sales service play the role as the important factors regarding decision making on purchasing other than price in the trade of B2B market. Most researches that measure the service quality in service field have focused on B2C consumer goods and the limited number of researches are only being carried out regarding the service quality in B2B area. Initial studies in B2B borrowed the service quality scale that was made mainly based on consumer goods (Gounaris 2005) by partially using the measure of SERVQUAL that was developed and collected by Parasuraman et al. (1988). In this study, we tried to investigate two main objectives: (1) develop the measurement scale to facilitate assessments of B-to-B service quality and (2) investigate the structural model which deals with the relation between the service quality and B2B relationship performance. Considering that most previous researches about service quality were conducted in the business-to-consumer area, this study conceptualizes the various quality aspects of service that are considered in B2B market and proposes our research model which is the detailed quality measurement scale of B2B service. We developed a measurement scale called B-SERVQUAL for B2B service quality and tested research hypotheses and structural model. Conceptual background This study carried out the comparative analysis against the measured items of previous researches and the contents acquired from the qualitative research. Various different measuring items and aspects related with service quality evaluation can be drawn out through the in-depth interview with companies’ purchasing staffs. To develop items for B2B service quality scale, we followed the procedure proposed by Churchill(1979), and Gerbing and Anderson(1988). First, in-depth interview with purchasing staffs was performed regarding transaction experience with B2B service providers. As proposed by Homburg and Garbe(1999), B2B service was classified into professional service that is provided by service expert company and industrial service that is provided by manufacturer of machine equipment. The responders were instructed to answer some important factors required to evaluate service providing company and items for current service provider to improve. After performing the pre-test with the filtered measuring items, the scale of service quality specialized for B2B service was developed after checking reliability and validity of measurement items. Based on such results of pre-test, we finally carried out the survey of respondents of B2B companies. Our final scales to measure the service quality were composed of 5 factors with 19 items such as economic quality, technical quality, process quality, empathy quality and convenience quality. We determined to call this scale ‘B-SERVQUAL’. Research design We developed research hypotheses and proposed our research model to analyze the effects of service quality on relationship performance in B-to-B market. To verify the sets of hypotheses and study model, we conducted questionnaire survey, targeting the personnel in purchase departments of public corporation and in the field of distribution/logistics, financial services, construction, manufacturing (electricity / machine, textile leather, food). A total of 250 questionnaires were distributed directly or through mail and 230 responses were used for the final analysis. Result and conclusion Through the confirmatory factor analysis, reliability and validity of the study constructs were verified. By using the structural equation model, research hypotheses were tested and most research hypotheses were statistically significant and accepted. The final research model also showed the statistical significance with the goodness-of-fit indices. We found that service quality has a positive effect on relationship bonding, indicating that the superior service quality of service providers leads relationship bonding with buyers. Five dimensions considered in this study bring not only structural bond but also the social bond that refers to the emotional bonding. Relationship bonding has a positive effect on commitment. Relationship commitment appeared to be an important factor that has a positive effect on relationship performance, which demonstrates the reduction of management cost through commitment. This study reflected the economic and convenience aspects of services that haven’t been highlighted in the previous studies in the business marketing area. This study has academic implications in that it reflected the economic aspects of services, which have been dealt with conceptually by some scholars such as profitability, productivity, and cost. From the viewpoint of B2B service providers, the B-SERVQUAL proposed in this study will be helpful guide for B2B marketers to specifically identify the customers’ needs and manage their service quality in the business market.

인사고과의 목적은 직무 수행을 통해 나타나는 구성원들의 능력과 성과를 공정하게 측정하고, 그 결과 를 반영함으로써 인적자원관리의 효율성을 높이는 데 있다. 따라서 인사고과는 구성원들의 성과를 관리 하고, 조직에서 기대하는 바람직한 태도와 행동을 향상시키는 도구로서 활용되어야 한다. 이에 본 연구는 사회교환이론과 확장-구축이론의 관점에서, 인사고과 공정성에 대한 인식의 확장이 구성원의 태도와 행동에 미치는 영향에 대해 고찰하였다. 또한 이러한 관계를 설명하는 매개역할로서 개인의 정서적 안녕에 주목하였고, 진성리더십을 통해 리더가 지닌 진정성의 확장이 가져오는 조절효과를 규명하였다. 본 연구의 실증분석을 위해 직장인 301명의 설문조사 자료를 사용하여 통계 분석을 실시하였다. 분석 결과에서 인사고과 공정성과 이타적 행동 간의 관계에서 정서적 안녕은 부분매개 역할을 하는 것으로 나타났으며 진성리더십의 경우, 높은 수준일수록 인사고과 공정성에 대한 정서적 안녕의 정적인 영향이 강화되는 것으로 나타났다. 또한 진성리더십이 높은 수준일수록, 인사고과 공정성과 이타적 행동 간의 관 계에 대한 정서적 안녕의 정적인 간접효과가 강화되는 것으로 나타났다. 이러한 분석결과를 토대로, 프로세스 요인으로서 구성원들의 정서적 안녕이 지닌 역할과 더불어 진성리더십에 의한 조절역할에 대한 경영학적 시사점을 제시하였다.

역전기투석전지는 염수-기수의 농도차이를 원동력으로 이온교환막의 선택성에 의해 양이온과 음이온을 서로 반대방향으로 이동시켜 전력을 생산한다. 이상적인 이온교환막의 경우 35 g/L과 0.5 g/L 농도의 염수와 기수를 흘려 보냈을 때, 약 0.1 V의 전압 출력을 가진다. 본 연구에서는 역전기투석 스택전지의 출력특성에 영향을 주는 인자로서 막저항, 염수와 기수의 전기전도도, 막 이동수, 막 면적, 유로 두께 및 메쉬의 개방면적비, 스택수 등을 고려하여 수치모사를 수행하였다. 스택전지 내 유로에서 발생하는 누설전류 및 내부저항을 고려한 등 가회로모델을 수립하였고, 상용 이온교환막으로 제작된 스택전지 실험결과로부터 개방전압, 단락전류밀도, 최대전력밀도와 같은 중요 전지특성에 대하여 수치 모사의 정합성을 확인하였다.

This paper aims to reveal the effects of the K- turbulence model on the performance analysis of battery cooling system for electric vehicle. The maximum temperature, the difference of temperature, and temperature distributions on the battery module were compared with and without K- turbulence model under the different flow rate. It can be expected that the maximum temperature of K- turbulence model is corrected by using the average error rate without the result of K- turbulence model.