• Journal of Korea Technology Innovation Society
• /
• v.14 no.1
• /
• pp.85-108
• /
• 2011

Under Ford system, corporations sought to maximize the economies of scale by raising the production efficiency. It aims to lower the production cost by increasing the quantity of output. But in the era of market flux and uncertainty, however, such strategies can no longer be sustained. Replacing the structures of Ford system, Toyota was able to accelerate the pace of process innovation and product innovation. Related to this innovation is JIT, new model development, modularization. The firm's reliance on flexible production technology provides opportunities to expand her production basis to foreign countries successfully. The main objective of this paper is to explore the contribution of process innovation to profit-capital ratio. The model is estimated using a time-series data of 18 years from 1990 to 2007 of auto production industry in korea. An Implication of this estimation shows that process innovation explains a significant portion of profit-capital ratio.

• Bulletin of the Korean Space Science Society
• /
• 2009.10a
• /
• pp.25.5-26
• /
• 2009

인류의 활동 무대가 우주공간으로 확대됨으로써 우주기상에 의한 피해를 최소화 할 수 있는 조치가 요구됨에 따라 우주기상에 대한 감시 및 예 경보 업무가 필요해 졌다. 미국은 이미 우주기상 감시와 예보의 필요성을 인식하고 해양대기청(NOAA), 미 공군(USAF), 항공우주국(NASA), 내무부(DOI), 에너지부(DOE), 과학재단(NSF)이 연합하여 1996년 국가우주기상 프로그램(National Space Weather Program)을 수립.추진하고 있다. 특히 정부연구 기관인 NOAA 산하 우주기상예보센터(Space Weather Prediction Center; SWPC)와 미 공군 기상국(AFWA)은 우주기상 자료 생산, 수집, 자료 센터 운용, 연구 지원 및 예 경보 업무를 공동으로 수행하고 있으며 관련 자료 및 정보의 교환 등 매우 밀접하게 상호협력하고 있다. 최근 정부는 과학기술 7대 중점투자 분야별 중점육성후보기술로서 우주감시체계개발기술을 포함한 국가과학기술기본계획(577전략)을 수립 발표하였으며, 대한민국 공군은 향후 우주군 창설을 목표로 우주전력 기반체계구축을 계획하고 있다. 국방부는 2012년 전시작전통제권 환수에 대비한 독자적인 작전지휘능력 확보가 필요한 상황이며, 미래의 한국군 독자적 네트웍 중심 전장(NCW: Network Central Warfare) 체계 구축을 위해서는 미 공군의 "우주기상작전센터"와 같은 우주기상 예 경보 체계 구축이 요구된다. 이 연구에서는 군의 독자적 우주작전능력 확보를 위한 우주기상 예 경보 체계 구축 방향을 제시하고자 사전기반 연구를 수행하였다. 그 내용으로 우주기상에 대한 개요 및 우주기상의 변화에 따른 국내외 영향을 조사하고 국내외 우주기상 예 경보 시스템을 소개하고자 한다. 또한, 미공군의 우주기상 활용 상태를 점검하여 한국 공군을 위한 우주기상 예 경보 체계 구축 및 인력과 기술 확보에 대한 방안을 제시하고자 한다.

• International Commerce and Information Review
• /
• v.15 no.4
• /
• pp.3-25
• /
• 2013

With the ever-changing medical tourist environment, the study has delved into issues ranging from judged value on medical tourist service quality and its effect on the service level and recurring rate of return visit through the quantitative analysis with the survey for a group of tourists from Japan, China, USA and the interview survey on medical specialist on tourists. Verifying the Hypothesis 1 reveals the assertion that quality of medical service for tourists has effected upon the functional value has proven to be true except the cases on responsiveness and accessibility. And the assumption that the quality of medical service for tourists has effected upon the emotional value has proven to be true except the case on accessibility. The paper has its limitation in that it is confined to medical tourists of small numbers of target countries, relatively short survey period. The study shall be followed by the further analysis on the factors for medical tourists' personal and societal effect

• Journal of the Korean Data and Information Science Society
• /
• v.27 no.4
• /
• pp.875-886
• /
• 2016

In this study, we investigate an influence of the China government's software support policy on the revenue of software export. In the analysis in the areas of technology development, manpower development, quality control and marketing reinforcement from 2008 to 2014, it has been found that the amounts of the policy influence and annual revenue of software export increase simultaneously, proving that the China government's support policy has a close relationship with the software export revenue. However, the annual ratio of the software export revenue to the gross software production revenue has decreased over the period, which indicates that the growth of software industry in China has been mainly driven by domestic market.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
• /
• v.10 no.6
• /
• pp.601-608
• /
• 2017

In the fourth industrial revolution, drones are an important element to lead the industry by converging with information technology. Drones are developing various technologies by combining with communication / navigation / traffic management technology, control and detection / avoidance technology, sensor technology, SW and application technology. However, there are various problems in order to settle the drone technology. In this paper, it will be examined the problems of application of drones through application fields of drones, domestic and foreign cases, and core technologies of drones. The growth of the drone market requires improvement of laws and institutions. This paper proposed security vulnerability, privacy and safety problem in wireless communication, and present technical and management problems for drone service in the Korean environment in particular.

• Journal of Information Technology and Architecture
• /
• v.9 no.1
• /
• pp.111-120
• /
• 2012

Many Countries are recently focued on building capability based military and operating for the defense budget efficiency and operational effectiveness. The EA not only defines enterprise scope but also identifies relation among them, manage change and complexity. Accordingly, this research aims to build architecture framework which can achieve alignment, integration and interoperability by developing it with output. Through this, architecture framework can be changed into force development and operation. And it can be used for construction of effective force and operation for NCO by applying mathematical model and method of force priority development based on developed capabilities-based architecture framework.

• Journal of the Korea Institute of Information Security & Cryptology
• /
• v.28 no.1
• /
• pp.73-83
• /
• 2018

There has been increasing interest from NIST and other companies in studying post-quantum cryptography in order to resist against quantum computers. Multivariate polynomial based, code based, lattice based, hash based digital signature, and isogeny based cryptosystems are one of the main categories in post quantum cryptography. Among these categories, isogeny based cryptosystem is known to have shortest key length. In this paper, we implemented Supersingular Isogeny Diffie-Hellman (SIDH) protocol efficiently on low-end mobile device. Considering the device's specification, we select supersingular curve on 523 bit prime field, and generate efficient isogeny computation tree. Our implementation of SIDH module is targeted for 32bit environment.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.19 no.11
• /
• pp.357-369
• /
• 2018

This paper aims at understanding the conceptual definition and the characteristics of happiness of korean university students. We analyzed the data using Hybrid model introduced by Schwartz-Barcott and Kim. The data was conducted from June, 2018 to July 2018. The participants in this study were 13 and an another part of the data was obtained from literatures regarding happiness of university students. We categorized Happiness of korean university students into eight attributes in four dimensions. In other words, The concept of happiness on korean university students is as follows: (i) Satisfaction of Individual's subjective, (ii) Satisfaction of Individual's objective, (iii) Achievement of goal, (iv) A positive cognition for the future, and (v) Relationship satisfaction from meaningful person, (vi) Physical and mental well-being of oneself and meaningful person, (vii) Satisfaction of everyday life, (viii) Satisfaction of college life. The major contribution from this paper is that we provide a guideline for establishing a strategy to reduce negative emotions and increase happiness of university students in korea by identifying the concept of Happiness on Korean university students. Based on this study, we recommend to develop an educational program to increase happiness of university students in korea.

• Journal of the Korea Convergence Society
• /
• v.10 no.3
• /
• pp.395-400
• /
• 2019

The Web environment of the frontend domain is increasingly competitive to preempt the new standard of presentation layer. N-Screen, a service that enables users to seamlessly use one content in various devices in Korea, is competing for market preemption by recognizing it as a core service of the future. In the cloud computing, N-screen is a typical service type. However, most of the frontend research required for groupware in enterprise environments has been limited to responsive web design for the web and native apps for mobile. Gradually, the need for MVC design patterns is increasingly widening in enterprise environments to overcome the cultural differences of companies and to support one source multi-use strategy supporting multiple devices and development productivity. Therefore, in this study, we will analyze and design JPetStore with hybrid application design based on Spring MVC, e-government standard framework environment of next generation web standard, and provide reference model of frontend hybrid apps design in future enterprise environment.

• Membrane Journal
• /
• v.29 no.1
• /
• pp.11-17
• /
• 2019

In the field of water treatment membranes, polymers are used together with ceramics as the most important materials. In this review, I tried to analyze the technology trends of polymer membrane materials based on commercial products. For this purpose, according to the types of water treatment membranes such as MF (Microfiltration), UF (Ultrafiltration) and NF (Nanofiltration), the trends of polymer membrane products were investigated by countries, materials, and companies. Through this, we were able to classify the types of materials that are mainly used for each type of membrane, and at the same time, identify the companies that are dominant in the market, and analyze which materials constitute the product portfolio. Based on these results, we have presented the characteristics of the material market according to each type of membrane, and proposed a technology development strategy to enter each market based on these characteristics.