• 무역학회지
• /
• 제43권2호
• /
• pp.107-125
• /
• 2018

본 연구는 수출 중소기업을 대상으로 개방형혁신과 제휴 유형이 수출성과에 영향을 미치는 경로를 분석하였다. 기존 연구에 따라 개방형혁신은 기술흡수형혁신과 기술활용형혁신으로 나누었다. 제휴 유형은 마케팅과 기술 제휴로 나누었다. 수출성과를 포함하여 5개 잠재변인 간에 6개의 가설을 설정하였다. 수출활동을 전개하는 중소기업 202개를 표본으로 실증분석을 시행하였다. 분석결과 기술흡수형혁신은 마케팅 제휴와 기술 제휴에 모두 유의한 영향을 주었다. 반면 기술활용형혁신은 기술 제휴에만 유의한 효과를 보였다. 제휴 유형은 수출성과에 모두 긍정적 영향을 보여주었다. 이로써 한국 중소기업의 수출활동에 개방형 혁신과 유통경로 확보 등에 필요한 마케팅 제휴의 관계를 활성화해야 함을 시사점으로 제시했다.

• 조명전기설비학회논문지
• /
• 제24권2호
• /
• pp.27-32
• /
• 2010

본 논문은 반도체 공정에 사용되는 고속 EFEM(Equipment Front End Module) 장치의 새로운 성능평가시스템을 제안한다. 다관절 로봇으로 구성된 EFEM은 실리콘 웨이퍼 또는 포토마스크를 클린 스토리지 캐리어와 각종 계측 및 테스팅 시스템 사이를 이동시키는 반도체 자동화의 핵심장치이다. 성능평가 시스템 개발을 위한 이론과 실험적인 연구가 수행되었고, 그 결과는 고속 EFEM 장치의 성능 평가시스템이 적합함을 입증한다. 특히, WTO/TBT(Technical Barhers to Trade) 협정 및 PL(Product Liability)법에 대처하는데 매우 효과적이다.

• 무역학회지
• /
• 제42권5호
• /
• pp.93-112
• /
• 2017

본 연구는 수출 중소기업의 FTA 정보학습의 역할을 실증분석하는데 목적을 두었다. 이에 중소기업 수출성과 경로에서 FTA 정보학습의 조절효과를 포함한 통합적 모형을 구축했다. 중소기업의 현지화 전략, 제품혁신 역량, FTA 정보학습의 관계를 수출성과에 연계하여 수출 중소기업 195개를 대상으로 실증분석을 시행했다. 구조방정식모형을 사용하여 경로분석을 시행했으며, 조절효과를 포함한 6개 가설을 검정했다. 분석결과 중소기업의 현지화 전략은 제품혁신 역량에 긍정적 영향을 주었다. 반면 FTA 정보학습은 유의한 결과를 보여주지 못했다. 수출성과 선행요인으로 제품혁신 역량과 FTA 정보학습은 모두 유의한 결과를 보여주었다. 조절효과의 경우 현지화 전략과 FTA 정보학습은 제품혁신 역량에 유의한 조절효과를 나타내지 못했다. 반면 제품혁신 역량과 FTA 정보학습은 중소기업 수출성과에 유의한 영향을 미치는 것으로 나타났다.

• Journal of Korea Trade
• /
• 제25권6호
• /
• pp.57-77
• /
• 2021

Purpose - International strategic alliance has been regarded as a strategic decision made by firms' managerial problems and ensure performance growth. From the perspective of the proactive behavior for changing strategies in a global market, this study aims to identify whether performance feedback influences firms' decisions to pursue strategic alliances. This study examines the effects of performance feedback on performance when firms use strategic alliances. Design/methodology - To analyze the impact of performance feedback on forming an international strategic alliance, this study adopt the concept of performance feedback to develop a research model and our hypotheses. Thus, this study used a two-stage least squares unbalanced panel data analysis with random effects. This study is based on 24,543 observations from Korean manufacturing firms from 2007 to 2016. Findings - The results show that firms pursue the formation of strategic alliances more actively, if their past financial and R&D performance are lower than their aspiration level, based on the result of performance feedback. An in split sample analysis for examining the effect of a firm's technology sophistication based on the OECD's classification, negative innovation performance discrepancy has positive effects on the probability of international alliance in high-tech and medium-high-tech industries. Financial performance also improves when a firm decides to form a strategic alliance based on the results of performance feedback. Originality/value - This research extends recent efforts to better understand the effect of performance feedback on firms' performance when they use strategic alliances. These findings suggest that the CEOs and managers of firms should consider the performance feedback perspective when deciding to pursue a strategic alliance to improve performance. In other words, the decision-makers in a firm must analyze and consider various complex variables inside and outside the firm and expand such subjects of examination to more complex and dynamic factors.

• 한국건설관리학회논문집
• /
• 제22권1호
• /
• pp.106-115
• /
• 2021

이미지를 이용해 공종을 분류하는 작업은 건설 관리와 공정 관리와 같은 더욱 복잡한 어플리케이션에서 중요한 역할을 수행할 수 있다. 하지만, 공사 현장에서 수집한 이미지들은 항상 깨끗하지 않을 수 있고, 이와 같이 문제가 있는 이미지들은 이미지 분류기의 성능에 부정적인 타격을 입힐 수 있다. 이러한 가능성은 공종을 판별하는 시스템을 보조할 수 있는 데이터나 방법의 필요성을 부각한다. 본 연구에서 우리는 공종의 선·후행 관계를 이용해 이미지 분류기를 보조하여 공종을 판별하는 시스템의 성능을 높이는 방법을 제시한다. 그리고 제시하는 방법이 공종 판별의 성능을 향상시킬 수 있다는 것을 보인다. 특히, 이미지 판별기의 성능이 좋지 않을때 더욱 드라마틱한 성능의 향상을 경험할 수 있다는 것을 알 수 있었다.

• The Journal of Asian Finance, Economics and Business
• /
• 제9권10호
• /
• pp.159-168
• /
• 2022

The time series of foreign trade turnover is complex and variable and contains linear and nonlinear information. This paper proposes preprocessing the dataset by the EMD algorithm and combining the linear prediction advantage of the SARIMA model with the nonlinear prediction advantage of the EMD-LSTM model to construct the SARIMA-EMD-LSTM hybrid model by the weight assignment method. The forecast performance of the single models is compared with that of the hybrid models by using MAPE and RMSE metrics. Furthermore, it is confirmed that the weight assignment approach can benefit from the hybrid models. The results show that the SARIMA model can capture the fluctuation pattern of the time series, but it cannot effectively predict the sudden drop in foreign trade turnover caused by special reasons and has the lowest accuracy in long-term forecasting. The EMD-LSTM model successfully resolves the hysteresis phenomenon and has the highest forecast accuracy of all models, with a MAPE of 7.4304%. Therefore, it can be effectively used to forecast the Sino-Russia foreign trade turnover time series post-epidemic. Hybrid models cannot take advantage of SARIMA linear and LSTM nonlinear forecasting, so weight assignment is not the best method to construct hybrid models.

• Management Science and Financial Engineering
• /
• 제22권1호
• /
• pp.21-26
• /
• 2016

We analyze how firms' global production activities affect their inventory supply and financial performance in regards to its production location. For the analysis, we use information on global production quantities of 3,076 Korean multinational firms that operate business in Europe and Asia through foreign direct investment (FDI) from 2006 to 2013. Our estimation results show that an increase in global production ratio, measured by global production/total production, decreases inventory supply and financial performance of firms that produce in European countries, while it decreases financial performance of firms that produce in Asian countries. Although our results indicate that global production decreases financial performance of firms that produce in Europe and Asia, we find that its negative effects on financial performance are different based on the market demand uncertainty.

• The Journal of Asian Finance, Economics and Business
• /
• 제7권8호
• /
• pp.723-733
• /
• 2020

The study investigates the effects of online instructional facilitator's qualities on student performance of online class activities. The study explores the roles of instructional facilitators who may influence student performance of online class activities and their academic achievement. The study employs a set of aggregated data from 1,362 subjects and 10 facilitators who participated in multiple online classes. The results of independent samples t-test reveal that the student performance in online classes has no association with facilitators' educational background or academic degree, as well as demographic characteristics, student evaluation records and instructional achievement. The results of multiple regression analysis show that the facilitator engagement has a positive relation to the enhancement of student interaction, reading discussion messages, and the quality of discussion messages in online discussions. The results of correlation analysis show that the facilitator engagement has a positive impact on both increasing the number of reading discussion messages and enhancing the quality of discussion messages. The facilitator engagement increases the quantity of reading discussion postings and enhances the quality of discussion messages, which would be a substantial contribution to student performance by facilitators. The findings suggest that student performance and academic achievement in online classes are not independent of facilitator engagement.

• 기술경영경제학회:학술대회논문집
• /
• 기술경영경제학회 1996년도 제10회 동계학술발표회 논문집
• /
• pp.154-178
• /
• 1996

This paper applies the technology-gap trade theory to explaining radical changes in the competitive positions of countries in world machine tool markets over the last three decades. It develops the notion that the innovation gaps in machine tools among countries led to the inter-country differences in the competitive performance in the sector as well as in its user sectors. Since competitive advantage largely depends on a capability to improve, create and apply technology to market competition, a higher innovative performance in one country than another is closely related to a higher innovative performance. A higher innovative performance in machine tools is also associated with a higher competitive performance of the large areas of its user sectors, due to sectoral interdependences and externalities generated by machine tool innovations. The results of empirical investigation through a panel data analysis show that the international gaps in machine tool innovations appeared to have a positive significant relationship with the differences in the export performance of both the machine tool sector and its user sector across countries.

• 오토저널
• /
• 제13권1호
• /
• pp.35-45
• /
• 1991

A linear quarter model of a vehicle suspension system is built and simulated. Especially the so-called sensitivity analysis is conducted in order to show its applicability to design problems, and sensitivity function is determined in the frequency domain. The change of frequency response function is predicted, which depends on the design parameter variation and the property is verified by computer simulation. Typical performance measures, namely, sprung mass acceleration, suspension deflection, and tire deflection are examined. The vehicle model is analyzed for ist performance sensitivity as a function of the system's feedback gains. The variable feedback gains are selected as the spring and damping coefficients. Frequency response, RMS response, and performance index of the performance evaluation variables are considered and three-dimensional and contour plots of response surfaces are formed to examine output sensitivity to suspension feedback. Performance trade-offs over the entire frequency spectrum are identified from the FRF, and that between ride quality and handling characteristics are examined from the RMS responses.