• Asia pacific journal of information systems
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• 제21권2호
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• pp.59-87
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• 2011

These days, firms are focusing on the improvement of relationships with business partners. The supply chain integrations are taking critical role in improving the relationships with business partners. In accordance with the development of the IT technology, it became possible for firms not only to integrate inner parts of the organization, but also to integrate the company with other organizations in the supply chain. Therefore, in e-Biz environments, it is imperative for firms to strengthen the core capacity through the supply chain, and to precisely determine the components of the determinants of e-Business integration which impact the firm performance. This study analyzed determinants that have impacts on e-business integration in e-business capacity perspectives in competitive environments. This study based on the premise that the resources and capacities that Grant(1991) and Hart(1995) emphasized do not directly influence the corporate performance. This study focused on the fact that corporate must create core competencies based on these capacities to establish competitive edge. Therefore, this study model analyzed to find out which e-Biz competencies are needed to integrate e-Biz according to competitive environment elements. This study designed to empirically analyze the impact of the e-Biz competencies to the e-Biz integration and to the corporate performance. Independent variables of this study-IT management, partner management, e-Biz knowledge, e-Biz establishment and proliferation, process innovation-are selected based on precedent studies on e-Biz competencies. We selected intermediate variables to verify that e-Biz competencies do not have direct impact on the corporate performance, but have impact on the e-Biz integration, which is intermediate effect. That is to verify that if the components of supply chain improve the integration level using e-Biz competencies, the overall supply chain performances will improve. Dependent variables are selected to verify that e-Biz integration has impacts on corporate performances. This study used factor analysis, path analysis, moderating effect analysis as statistical tests. First, we used exploratory factor analysis and confirmatory factor analysis to analyze reliability and validity. Because e-Biz competencies are presented variously by preceding studies, we used SPSS16.0 to verify if survey questionnaire used by theoretical backgrounds is properly composed. Second, we tested the property of structure model by AMOS. We did path analysis using AMOS16.0 to test structure that is composed of e-Biz competencies and e-Biz integration. Last, we tested moderating effects of measure factors. We analyzed 163 domestic companies to find out many significant suggestive points. First, relationship improvement capacity, e-business knowledge sharing capacity with business partners, and process innovation capacity are adopted as determinants of differentiation and competitive edges against competing firms. Second, e-business knowledge sharing capacity, and process innovation capacity are analyzed as the determinants of e-business integration in the firm which demand fluctuation in the market is high. On the other hand, among the determinants that require capturing ideas on new products, and strengthening the technological power, process innovation capacity are adopted as the determinants. These results provide us the foundation that the determinants that we have analyzed can impact the supply chain integration strategies which take into account the competitive environments.

• 한국실내디자인학회논문집
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• 제20권3호
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• pp.206-214
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• 2011

The premise of this study is that an ultimate objective in planning an exhibition space is visitors' experiences created by a result of their first-hand experiences and responses within an exhibition space, and this result can be recognized in the visitors' movement. Thus, the exhibition layout that can directly affects viewers' main line of flow and movement patterns was examined vis--vis a mutually complementary relation in a triangular composition with the structure of exhibition space and the exhibition contents. This study, with the subjects of standing exhibit halls of Gwacheon National Science Museum, Daejeon National Science Museum, and Tokyo National Museum of Emerging Science and Innovation, analyzed 'the correlation between the configuration of the exhibition area and the visitors' movement. The targeted subjects were analyzed from the perspectives of type of architectural space and organization of the exhibition method, and the purpose of this study was to find a spatial evidence to predict the spectator movement formed within the exhibition halls of science museums. The main indicators used are: Based on the investigation/analysis as described above, the following conclusion could be drawn. Diversity of exhibition environment and spectator movement: besides the two big categories of the types of architectural space and types of exhibition method, the construction of vertical circulation and size and shape of the exhibition space, distribution characteristics of exhibition medium, organization of symbolic space and such other diverse organizations and combinations of exhibition environment are implied to have the capability to alter the scope and degree of predicting spectator movement. As an example, the types of architectural space comprising the wide-area viewing circulation was found to be able to change the system of planar circulation according to the composition of vertical circulation. Along with this, it was implied that the format of architectural space influences the form of the exhibition space, and may also act as a factor directly influencing the diversity and arrangement of the exhibition methods. That is, the spatial elements comprising the exhibition environment acts inter-complexly, and exhibits characteristics of limiting or controlling spectator movement.

• 한국의류학회지
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• 제48권2호
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• pp.312-327
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• 2024

In this study, a rehabilitation 3D printed wearable device was developed by combining an assembly-type robot hand and an integral-type robot hand through fused deposition 3D printing manufacturing with various hardness TPU (Thermoplastic Polyurethane) filaments. The hardware configuration of the robot hand includes a controller designed with four motors, one small servo motor, and a circuit board. In the case of the assembly-type robot hand model, a 3D printed robot hand was assembled using samples printed with TPU of hardness 87A and 95A. It was observed that TPU with a hardness of 95A was suitable for use due to shape stability. For the integrated-type robot hand model, the external sample using TPU of hardness 95A could be modified through a cutting method, and the hardware configuration is the same as the assembly-type. The system structure of the 3D printed robot hand was improved from an individual control method to a simultaneous transmission method.Furthermore, the system architecture of an integrated 3D printed robotic hand rehabilitation device and the application of the rehabilitation device were developed.

• 디자인학연구
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• 제11권1호
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• pp.209-218
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• 1998

뉴 미디어를 비롯한 신문지상과 TV에서 날마다 쏟아있고 있는 정보의 확산은 점차로 소비자의 의식을 새로운 가치관으로 이끌어가고 있으며 또 소비적 성향을 그 제품이 주는 실용성이나 경제성이라는 가치보다는 감성적 욕구로서의 기호 가치로서 제품의 가치를 인식하게 하고 있다. 가치관과 의식의 변화는 디자인에 많은 변화를 초래했는데 그 변화를 살펴보면 획일적이고 일방적이었던 모던 시대의 디자인에서 다의적이고 다중 적으로, 상품 소비에서 기호 소비 또는 이미지 소비로 물건의 외면 성, 현시성에 대립되는‘상품의 내면화’를 추구하게 되었으며, 유행 위주의 대중 소비에서 개성 중심의 개인 소비 성향으로서 변화이다. 이것은 기호 소비자의‘디자인 의미 해독’범위가 다양해지고 있음을 의미한다. 기호는 담론(discourse)을 옮기는 커뮤니케이션의 형태이며 담론은 의미 생성자와 의미소비자간의 커뮤니케이션에 관한 것을 말한다. 이 논문에서는 담론으로서의 기호 표현을 살펴보는 첫 단계로 광고의 기호 표현을 통해 직접적 표현의 경우, 은유적 표현의 경우로 나누어 생각해 보았다. 그리고 그 중 포스트모던의 성향을 표현하기에 적합하다고 판단되는 은유적 기호 표현에 대해서 좀더 깊이 있게 분석해 보고자하였다.

• 정보학연구
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• 제1권1호
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• pp.85-101
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• 1998

21세기를 눈앞에 둔 지금, 기업의 경영자들은 예전과는 다른 새로운 차원의 다양한 도전에 직면하고 있다. 이러한 도전들 중에서 가장 중요한 것은 아마도 세계화(Globalization), 또는 국제화의 추세일 것이다. 이처럼 국경을 초월한 글로벌 시대를 맞이하여 기업은 세계 곳곳에 존재하는 인적, 물적자원, 자금 및 정보 등의 다양한 경영자원을 통합하여 기업 활동에서 새로운 부가가치를 창출해야만 생존이 가능하게 이르렀다. 정보시스템과 전략, 구조에 대한 기존의 연구를 살펴보면, 전략과 조직구조, 정보시스템과 전략, 그리고 정보시스템과 조직의 관계는 각각 단편적으로 연구되어 왔으나, 이들 세 요소를 하나로 묶는 연구는 그리 많지 않았다. 그러므로 한 걸음 더 나아가 정보시스템의 활용을 통한 세계화 전략과 이에 적합한 조직의 구현이라는 주제는 지금까지 그다지 많은 관심을 받지 못하였다. 이처럼 조직의 세계화 구현을 위한 정보시스템과 조직, 전략과의 연계라는 주제에 대해 깊이 있는 연구가 이루어지지 못한 이유는, 국제 경영학을 연구하는 학자들이 이 분야를 지나치게 기술적인 문제로 인식하고 있었기 때문이고, 다른 한편으로는 학자들의 관심이 국가 지향적으로 편중되어 있어서 글로벌 정보시스템이라는 주제를 회피하려는 경향을 가지고 있었기 때문이다. 이러한 배경으로 본 연구에서는 먼저 조직들의 다국적 기업의 전략, 조직구조 및 정보시스템의 성황적 적합성을 알아보기 위하여 글로벌 기업의 전략과 조직구조 그리고 정보시스템에 대한 문헌을 조사하였다. 그리고 기존 문헌 연구를 토대로 각각의 변수에 대한 분류 형태를 제시하고, 이들 3가지 변수들의 연계에 대한 이론적인 연구의 기초를 마련하였다. 또한 이 세 가지 변수들 간의 연계와 적합성이 과연 기업의 성과에 긍정적으로 작용하는지를 알아 보기 위하여, 변수들을 해외 거점에 대한 본사의 통제 정도라는 기준으로 재분류하여 다국적 기업의 구조, 전략, 그리고 정보시스템의 상황적 적합성에 관한 연구모형을 만들고 그에 따른 가설을 설정하였다.

• Progress in Superconductivity
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• 제4권2호
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• pp.180-183
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• 2003

We evaluated the effect of alloying-element additions to Ag sheath on thermal conductivity of Bi-2223 superconductor tapes. In order to evaluate the effect of sheath alloys and their configuration on the properties of tape, various combinations of Ag and Ag alloys were selected as inner and outer sheath. Thermal conductivity of the tapes was measured by using thermal integral method at 10∼120 K. It is observed that the presence of alloying-elements such as Mg, Sb, and Au in Ag sheath results in decreased thermal conductivity at low temperature. Specifically, the thermal conductivity of AgMg, AgSb, and AgAu at 40 K were 411.4, 142.3, and 109.7 W/(m·K), respectively, which is about 2∼9 times lower than that of Ag (1004.6 W/(m·K)). In addition, the thermal conductivity of alloy-sheathed tape was significantly dependent on their values of constituent sheath materials.

• 공학교육연구
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• 제16권6호
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• pp.52-57
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• 2013

In this paper, the evaluation system in order to achieve the program education objectives of Accreditaion Board for engineering education of Korea, analyze the educational objectives evaluation tool case studies of programs that are run by each university, the program educational objectives to match the actual situation of university I have developed a distinction between questions the evaluation and assessment system. Configuration, execution, measurement, analysis, is a five-step mooring, the evaluation tool, is a graduate research you are currently using the most in Korea, the employer survey, education target assessment model of the program, employment trends of graduates, I decided to graduate focus group interviews. Distinction between questions, the evaluation also developed a questionnaire to derive the important keywords of education for each objectives. Improvement evaluation tool, the evaluation criteria is required, the University is preparing evaluate (NGR) in South Korea engineering education certification next regularly, requires research on semantic analysis of the results of measurement of the educational goals of the program in the future some.

• Smart Structures and Systems
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• 제5권6호
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• pp.663-679
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• 2009

The use of Micro-Electro-Mechanical Systems (MEMS) accelerometers in geotechnical instrumentation is relatively new but on the rise. This paper describes a new MEMS-based system for in situ deformation and vibration monitoring. The system has been developed in an effort to combine recent advances in the miniaturization of sensors and electronics with an established wireless infrastructure for on-line geotechnical monitoring. The concept is based on triaxial MEMS accelerometer measurements of static acceleration (angles relative to gravity) and dynamic accelerations. The dynamic acceleration sensitivity range provides signals proportional to vibration during earthquakes or construction activities. This MEMS-based in-place inclinometer system utilizes the measurements to obtain three-dimensional (3D) ground acceleration and permanent deformation profiles up to a depth of one hundred meters. Each sensor array or group of arrays can be connected to a wireless earth station to enable real-time monitoring as well as remote sensor configuration. This paper provides a technical assessment of MEMS-based in-place inclinometer systems for geotechnical instrumentation applications by reviewing the sensor characteristics and providing small- and full-scale laboratory calibration tests. A description and validation of recorded field data from an instrumented unstable slope in California is also presented.

• Current Optics and Photonics
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• 제6권6호
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• pp.627-633
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• 2022

To realize uniform side pumping of solar lasers and improve their output power, a solar concentrating system based on off-axis parabolic mirrors is proposed. Four identical off-axis parabolic mirrors with focal length of 1,000 mm are toroidally arranged as the primary concentrator. Four two-dimensional compound parabolic concentrators (2D-CPCs) are designed as a secondary concentrator to further compress the focused spot induced by the parabolic mirrors, and the focused light is then homogenized by four rectangular diffusers and provides uniform pumping for a laser-crystal rod to achieve solar laser emission. Simulation results show that the solar power received by the laser rod, uniformity of the light spot, and output power of the solar laser are 7,872.7 W, 98%, and 351.8 W respectively. This uniform pumping configuration and concentrator design thus provide a new means for developing high-power side-pumped solid-state solar lasers.

• 전력전자학회논문지
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• 제26권3호
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• pp.176-182
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• 2021

This research proposes a high-frequency circuit that can accurately predict the differential mode noise of single-phase inverters at the circuit design stage. Proposed single-phase inverter high frequency circuit in the work is a form in which harmonic impedance components are added to the basic single-phase inverter circuit configuration. For accurate noise prediction, parasitic components present in each part of the differential noise path were extracted. Impedance was extracted using a network analyzer and Q3D in the measurement range of 150 kHz to 30 MHz. A high-frequency circuit model was completed by applying the measured values. Simulations and experiments were conducted to confirm the validity of the high-frequency circuit. As a result, we were able to predict the resonance point of the differential mode voltage extracted as an experimental value with a high-frequency circuit model within an approximately 10% error. Through this outcome, we could verify that differential mode noise can be accurately predicted using the proposed model of the high-frequency circuit without a separate test bench for noise measurement.