• 대한예방의학회:학술대회논문집
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• 대한예방의학회 2002년도 제54차 추계 학술대회 연제집
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• pp.226-226
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• 2002

• 대한약학회:학술대회논문집
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• 대한약학회 2003년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.2-2
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• pp.71.2-72
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• 2003

This presentation is to enhance the pharmacist's role in Over-The-Counter(OTC) drug selection and patient counseling for diversification of pharmacy management after the separation of prescribing and dispensing practice in Korea. Self-medication by OTC drugs may be viewed as one element of the broader self-care treatment. The patient may use a OTC drug to manage a minor ailment, a process that may be supported by counseling from a pharmacist. Pharmacists involved in self-medication decisions have a greater involvement with patients and an enhanced professional role. (omitted)

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2006년도 6th International Meeting on Information Display
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• pp.1235-1238
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• 2006

One-Drop-Filling (ODF) process is an advanced vacuum filling process in LCoS manufacture line. The merits not only increase the throughput of liquid crystal filling process but also reduce the number of equipments. Studying application of ODF process in LCoS panel manufacturing is the purpose of is this article. The accuracy of liquid crystal drop size, the stability of seal dispensing and the nozzle size etc. In the tiny panel manufacture are more important than those factors in normal panel manufacture.

• 대한의용생체공학회:의공학회지
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• 제39권5호
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• pp.188-207
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• 2018

Recently, three-dimensional (3D) printing of biological tissues and organ has become an attractive interdisciplinary research topic that combines a broad range of fields including engineering, biomaterials science, cell biology, physics, and medicine. The 3D bioprinting can be used to produce complex tissue engineering scaffolds based on computer designs obtained from patient-specific anatomical data. It is a powerful tool for building structures by printing cells together with matrix materials and biochemical factors in spatially predefined positions within confined 3D structures. In the field of the 3D bioprinting, three major categories of the 3D bioprinting include the stereolithography-based, inkjet-based, and dispensing-based bioprinting. Some of them have made significant process. Each technique has its own advantages and limitations. Compared with non-biological printing, the 3D bioprinting should consider additional complexities: biocompatibility, degradability of printing materials, cell types, cell growth, cell viability, and cell proliferation factors. Numerous 3D bioprinting technologies have been proposed, and some of them have been making great progress in printing several tissues including multilayered skin, cartilaginous structures, bone, vasculature even heart and liver. This review summarizes basic principles and key aspects of some frequently utilized printing technologies, and introduces current challenges, and prospects in the 3D bioprinting.

• 한국전산유체공학회:학술대회논문집
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• 한국전산유체공학회 2003년도 The Fifth Asian Computational Fluid Dynamics Conference
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• pp.113-115
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• 2003

Droplet impinging into a cavity at micro-scale is one of important fluidic issues for microfabrications, e.g. bio-chip applications and inkjet deposition processes in the PLED panel manufacturing. The droplets generally dispensing from an inkjet head, which contains an array of nozzles, have a volume in several picoliters, while each nozzle jets the droplets into cavities with micron-meter size located on substrates. Due to measurement difficulties at micro-scale, the numerical simulation could serve as an efficient and preliminary way to evaluate the micro-sized droplet impinging behavior into a cavity. The micro-fluidic flow is computed by solving the three-dimensional Navier-Stokes equations through a finite volume discretization. The droplet front is predicted by a volume-of-fluid approach, in which the surface tension is modeled as a function of the fluid concentration. This paper discusses the influence of fluid properties, such as surface tension and fluid viscosity, on micro-fluidic characteristics at different jetting speeds in the deposition process via the proposed numerical approach.

• 한국기계가공학회지
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• 제13권2호
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• pp.8-14
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• 2014

Many kinds of robots and machines have been developed to replace human laborin industrial and medical fields, as well as domestic life. In these applications, the device sneed to obtain environmental data using diverse sensors. Among such sensors, the tactile sensor is important because of its ability to get information regarding surface texture and force through the use of mechanical contact. In this research, a simple tactile sensor was developed using the direct writing of pressure sensitive material and layered fabrication of photocurable material. The body of the sensor was fabricated using layered fabrication, and pressure sensitive materials were dispensed between the layers using direct writing. We examined the line fabrication characteristics of the pressure sensitive material according to nozzle dispensing conditions. A simple $4{\times}4$ array flexible tactile sensor was successfully fabricated using the proposed process.

• 한국가스학회지
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• 제20권4호
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• pp.15-24
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• 2016

반도체 산업에서 많은 종류의 화학물질 사용으로 인한 독성물질 누출과 화학물질간의 혼화에 따른 화재 폭발 등에 의한 화학사고의 위험성이 증가하고 있다. 화학물질의 혼화에 따른 반응성을 평가하는데 실험적 방법이 가장 신뢰성 있지만, 모든 화학물질을 실험을 통하여 평가하는 것은 시간적, 비용적인 제한이 있다. 본 연구에서는 반도체 산업에서 주로 사용되는 공정가스의 위험성 추정하기 위해 미국 NOAA(National Oceanic and Atmospheric Administration)과 EPA에서 개발한 CRW(Chemical Reactivity Worksheet) 3.0 프로그램을 사용하여 공정가스의 반응성을 고찰하였다. 이들 연구 결과는 반도체산업의 공정가스의 혼화성에 따른 반응성 정보와 저장캐비닛의 가스 실린더 보관에 관한 KOSHA 기술지침 작성에 필요한 기초자료를 제시하고자 하였다.

• 반도체디스플레이기술학회지
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• 제8권1호
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• pp.1-5
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• 2009

Typically, single-wafer wet etching is done by dispensing chemical onto the front and back side of spin wafer. The wafer is fixed by a number of chuck pins, which obstruct the chemical flow and would result in the incomplete removal of the remaining film, which can become a source of contamination in the next process. In this paper, we introduce a novel design of wafer chuck, in which chuck pins are groupped into two and each group of pins fixes the substrate alternatively. Two groups of chuck pins fix the high-speed spin substrate with non contact method using a magnetic material. The actual process has been executed to observe the effectiveness of this new wafer chuck. It was found that the new wafer chuck performed better than the conventional wafer chuck for removing the remaining film from the bevel and edge side of substrate.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2009년도 추계학술대회 논문집
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• pp.177-177
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• 2009

We examine the process to enhance the productivity of the thin-film transistor-addressed liquid-crystal display (TFT LCD) panels with the objective of optimizing the relation between the Type of color PR dispense nozzle and the amount of dispensing of color PR consumption, directly affecting a spectroscopic analysis. Most manufacturers of the panels have been utilizing a spin-type coater. We show that we successfully optimize the spectral values by controlling the color PR dispense type(Static dispense or Dynamic dispense) and the amount of color PR. From this study, we accomplished to decrease 43% in color PR consumption and to decrease 30% in color PR Stained, to decrease 30% rework rate.

• Journal of Welding and Joining
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• 제24권2호
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• pp.57-63
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• 2006

In this study, the curing kinetics and thermal degradation of underfill were investigated using differential scanning calorimetry (DSC) and thermo gravimetry analysis (TGA). The mechanical and thermal properties of underfill were characterized using dynamic mechanical analysis (DMA) and thermo-mechanical analysis (TMA). Also, we presented on underfill dispensing process using Prostar tool. The non-isothermal DSC scans at various heating rates, the exothermic reaction peak became narrower with increasing the heating rate. The thermal degradation of underfill was composed of two processes, which involved chemical reactions between the degrading polymer and oxygen from the air atmosphere. The results of fluidity phenomena were simulated using Star CD program, the fluidity of the underfills with lower viscosity was faster.