• 한국전산유체공학회:학술대회논문집
• /
• 한국전산유체공학회 2006년도 PARALLEL CFD 2006
• /
• pp.121-125
• /
• 2006

CFD has been used in aircraft development and broaden its influence in various fields of industries. This paper briefly introduces the historical trends of computing system, the overview of CFD applications in Korean Supersonic Trainer Development Program and the demand for CFD software in industry points of view.

• 한국컴퓨터정보학회논문지
• /
• 제20권12호
• /
• pp.115-120
• /
• 2015

This paper is a study on applications providing information related to infant care. It classifies various mobile contents into a few types, compares and contrasts them. Also it analyzes the latest trend of the contents and the strengths of newest applications or app. books. Through the analysis, this study suggests an infant care application which provides information efficiently. It causes useful that people in need can gather information conveniently through this application. Furthermore, it offers opportunities to contribute to the society.

• 한국정보시스템학회지:정보시스템연구
• /
• 제4권
• /
• pp.181-209
• /
• 1995

As the effective use of information has gained greater attention over the decade, various conventional AI techniques have been applied to develop expert systems for business applications. Case-based reasoning (CBR) makes data more accessible by organizing it as a set of examples from past experience that can be generalized and applied to current problems. This paper illustrates basic concepts of CBR and addresses the system discussed in this paper can provide a basis for building more flexible and adaptable expert systems for business applications.

• Journal of International Society for Simulation Surgery
• /
• 제1권2호
• /
• pp.62-66
• /
• 2014

Image registration is the process for finding the correct geometrical transformation that brings one image in precise spatial correspondence with another image. There are limitations on the visualization of simple overlay between two different modality images because two different modality images have different anatomical information, resolution, and viewpoint. In this paper, various image registration methods and their applications are introduced. With the recent advance of medical imaging device, image registration is used actively in diagnosis support, treatment planning, surgery guidance and monitoring the disease progression.

• 한국세라믹학회지
• /
• 제49권6호
• /
• pp.561-565
• /
• 2012

Due to their unique combination of properties, Si-based ceramics, such as silicon carbide (SiC), silicon nitride ($Si_3N_4$) and silicon oxide ($SiO_2$ as fused silica), have a range of industrial applications in fields such as the chemical industry, aluminum manufacturing, oil and gas production and solar cell production. For each materials group, examples of typical applications from various industry sectors are presented while taking into account the property fingerprint.

• 대한원격탐사학회지
• /
• 제16권2호
• /
• pp.189-198
• /
• 2000

This study introduces the CEOS (Committee for Earth Obseuing Satellites) standard format structure that is applicable to image formats of Earth observation systems, and describes several important parameters for post-process applications, especially in precise SAR geocoding and terrain correction application. ERS and RADARSAT were chosen as a representative case and the meaning and usage of various fields in LEADER file were investigated in detail from the viewpoint of SAR geocoding and terrain correction applications.

• 한국정보통신학회:학술대회논문집
• /
• 한국정보통신학회 2022년도 춘계학술대회
• /
• pp.552-553
• /
• 2022

Key technologies of Fourth Industrial Revolution and their innovative applications are expected to bring another technological revolution going forward. The present study takes a close look at the Internet of Things (IoT) among the key technologies of the Fourth Industrial Revolution. In particular, sensor devices, which serve as the core of IoT-based application systems, are analyzed. This study also examines various applications and solutions using IoT-based systems.

• Journal of Construction Engineering and Project Management
• /
• 제6권2호
• /
• pp.30-39
• /
• 2016

This research presents the development of a self-governing mobile robot navigation system for indoor construction applications. This self-governing robot navigation system integrated robot control units, various positioning techniques including a dead-reckoning system, a UWB platform and motion sensors, with a BIM path planner solution. Various algorithms and error correction methods have been tested for all the employed sensors and other components to improve the positioning and navigation capability of the system. The research demonstrated that the path planner utilizing a BIM model as a navigation site map could effectively extract an efficient path for the robot, and could be executed in a real-time application for construction environments. Several navigation strategies with a mobile robot were tested with various combinations of localization sensors including wheel encoders, sonar/infrared/thermal proximity sensors, motion sensors, a digital compass, and UWB. The system successfully demonstrated the ability to plan an efficient path for robot's movement and properly navigate through the planned path to reach the specified destination in a complex indoor construction site. The findings can be adopted to several potential construction or manufacturing applications such as robotic material delivery, inspection, and onsite security.

• Membrane and Water Treatment
• /
• 제2권4호
• /
• pp.207-223
• /
• 2011

Supported Liquid Membranes (SLMs) have been widely studied as feasible alternative to traditional processes for separation and purification of various chemicals both from aqueous and organic matrices. This technique offers various advantages like active transport, possibility to use expensive extractants, high selectivity, low energy requirements and minimization of chemical additives. SLMs are not yet used at large scale in industrial applications, because of the low stability. In the present paper, after a brief overview of the state of the art of SLM technology the facilitated transport mechanisms of SLM based separation is described, also introducing the small and the big carrousel models, which are employed for transport modeling. The main operating parameters (selectivity, flux and permeability) are introduced. The problems related to system stabilization are also discussed, giving particular attention to the influence of membrane materials (solid membrane support and organic liquid membrane (LM) phase). Various approaches proposed in literature to enhance SLM stability are also reviewed. Modification of the solid membrane support, creating an additional layer on membrane surface, which acts as a barrier to LM phase loss, increases system stability, but the membrane permeability, and then the flux, decrease. Stagnant Sandwich Liquid Membrane (SSwLM), an implementation of the SLM system, results in both high flux and stability compared to SLM. Finally, possible large scale applications of SLMs are also reviewed, evidencing that if the LM separation process is opportunely carried out (no production of byproducts), it can be considered as a green process.

• 한국표면공학회:학술대회논문집
• /
• 한국표면공학회 2012년도 춘계학술발표회 논문집
• /
• pp.141-142
• /
• 2012

Recently, surface texturing by atmospheric laser processing has been received lots of attention to improve the tribological performance of various surfaces and this laser texturing of surfaces could be considered in a large extent to improve tribological performance of PVD coated surface. Surface texturing could be performed by various manufacturing techniques such as indentation with hard materials, ion etching, abrasive jet machining, lithography, and Laser Surface Texturing (LST). Out of all these techniques, however it is generally accepted that laser surface texturing (LST) by atmospheric laser processing offers the most promising process as LST is very fast, environmentally-friendly, easy to control the shape and size of the microdimples. In this work various preliminary experimental results from the laser texturing on the PVD-coated steel substrate will be presented. Our results indicated that laser texturing definitely affect the tribological performance of the surfaces and the size as well as pattern type of laser texturing are one of the key factors. From the wear tests against an alumina counterpart ball at room temperature under oil-lubricated condition, laser surface texturing on the CrZrSiN films reduced the friction coefficients by approximately more than 5 times in the case of narrow patterned surfaces.