• 한국의류학회지
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• 제38권3호
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• pp.404-414
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• 2014

This study investigates the dyeability and fastness of jacquard fabric for blind using low-melting flame retardant polyester. Two types of jacquard fabric were prepared with a low-melting flame retardant polyester and regular polyester. The low-melting flame retardant polyester has a sheath and a core. The core consists of flame retardant polyester and the sheath consists of low-melting polyester. Disperse red 50 (DR 50), disperse blue 56 (DB 56), disperse yellow (DY 54) of E-type dyes and disperse 92 (DR 92), disperse blue 60 (DB 60), disperse yellow (DY 79) of S-type dyes were used and dyed on jacquard fabrics dependent of dyeing temperature and time. The fastness, dye exhaustion, color strength (K/S value), and colorimetric properties of jacquard fabrics were evaluated. The dyeability of S-type dyes were higher than E-type dyes. The experiments indicated optimum dyeability that the dyeing temperature was $110^{\circ}C$ for E-type dyes and $120^{\circ}C$ for S-type dyes for 40 minutes. The fastness to washing and light were excellent at a 4-5 grade.

• 한국문헌정보학회지
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• 제43권2호
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• pp.277-298
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• 2009

한국학술진흥재단 기초학문자료센터(Korean Research Memory: KRM)의 기 구축된 인문사회 학술용어는 각 용어 및 연구 성과물간에 성립하는 의미관계의 분석을 통해 수요에 적합한 정보를 보다 효율적으로 탐색 활용할 수 있도록 연구성과물 메타데이터의 유기적 연동이 요구되었다. 본 연구에서는 첫째, 연구성과물의 핵심적 개념을 표현하는 주제 색인어로 구성된 인문사회 학술용어 온톨로지를 기반으로 각 해당 연구성과물 지식구조를 표현하는 개념모델를 정의하고, 둘째, 연구성과물 간에 성립하는 의미관계 정의를 통해, 연구성과물에 대응하는 연구자 정보수요를 분석하여 이에 맞춘 정보 탐색서비스 모델을 설계하였다. 셋째, 학술용어 온톨로지 및 연구성과물 DB의 유기적 연계통합 운영을 위한 기술적이고 관리적 체계 수립방안을 제시하였다.

• 한국방사선학회논문지
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• 제17권1호
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• pp.115-122
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• 2023

엉덩관절 고정기구는 골밀도 검사 및 미세골절, 관절염의 진단 시 내회전을 위한 중요 고정기구입니다. 이러한 고정기구는 벨크로를 사용하여 재현성 유지에 한계가 있습니다. 이에 본 연구에서는 개선된 엉덩관절 고정기구를 개발하여 유용성을 평가하였습니다. 방사선과 재학생 30 명을 대상으로 기존과 개선된 고정기구를 적용하여 자세잡이 소요시간과 의료영상을 통한 재현성을 평가하였습니다. 또한, 시간경과에 따른 변화도 평가하였습니다. 그 결과 기존 고정기구에 비해 개선된 고정기구는 자세잡이 시간은 약 32%의 감소를 보였으며, 재현성은 약 6.2 배 향상되었습니다. 시간경과에 따른 변화량은 자세잡이 시간은 기존 고정기구는 증가된 반면 개선된 고정기구는 감소되었으며, 재현성은 개선된 고정기구보다 기존 고정기구가 더 저하되었습니다. 이를 통해 개선된 고정기구의 사용을 통해 영상의 질 향상과 방사선사의 업무부담 감소가 나타났다고 할 수 있습니다.

• 한국방사선학회논문지
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• 제10권2호
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• pp.109-115
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• 2016

방사선학 영역에서의 디지털 영상 장치의 사용이 급격히 증가되고 있음에도 불구하고, 사용 장치에서의 최적 조사 조건 설정이 미흡한 실정이다. 본 연구에서는 디지털 방사선 장치의 촬영조건에 따른 피폭선량과 화질을 비교 평가하고자 하였다. 이에 CR, DR의 디지털 방사선 촬영장치를 이용하여 현재 사용하고 있는 촬영조건을 기준으로 각 5단계씩 조건을 변경시키면서 피폭선량을 측정하였으며, 획득한 영상은 의료영상전문가 20명에게 일본 결핵예방학회의 평가법을 준용하여 평가하였다. 그 결과, CR 시스템의 경우 기준 조건인 110 kVp, 3.2 mAs에서의 화질평가 86점 보다 120 kVp, 1.5~2.4 mAs에서 화질평가 91, 95.5점으로 보다 우수하게 나타났으며, 이 때 피폭선량 또한 기준 조건에서의 $105.11{\mu}Gy$ 보다 낮은 $61.3{\sim}98.4{\mu}Gy$로 평가되었다. DR 시스템 경우는 오히려 기준 조건인 125 kVp, 3.2 mAs에서의 화질평가 91점보다 관전압이 낮은 영역인 112 kVp, 2.4~3.2 mAs에서 97점, 98.6점 사이의 높은 화질평가 점수를 나타내었으며, 피폭선량 또한 기준 조건에서의 $93{\mu}Gy$ 보다 낮은 $61.5{\mu}Gy$, $77.2{\mu}Gy$로 평가되었다. 이러한 결과는 디지털 장치의 적절한 조사조건을 설정함으로써 동일한 화질의 영상에 대해 환자 피폭선량을 저감시킬 수 있음을 확인할 수 있었다.

• Journal of Advanced Marine Engineering and Technology
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• 제29권7호
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• pp.744-749
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• 2005

This paper describes the performance improvement of power control system of magnetron (MGT) for microwave oven. The MGT is used extensively in household microwave oven and industrial microwave heating devices, and is operated by 3.0[kV] $\∼$5.0[kV] dc high voltage. The proposed power supply is consisted of a bridge rectifier, step-up converter(SUC) and its controller, half bridge inverter(HBI) and its controller, and full wave double voltage rectifier(DVR). In the proposed system, a good power factor can be obtained by the SUC' switching method that the inductor current waveforms follows that of the rectified voltage, and a line input power can be controlled to a range of 17.5[$\%$] by duty ratio (DR) adjustment of the HBI.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2005년도 Proceedings of ISRS 2005
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• pp.778-784
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• 2005

Miniaturization of computing devices, and advances in wireless communication and positioning systems will create a wide and increasing range of database applications such as location-based services, tracking and transportation systems that has to deal with Moving Objects. Various types of queries could be posted to moving objects, including past, present and future queries. The key problem is how to model the location of moving objects and enable Database Management System (DBMS) to predict the future location of a moving object. It is obvious that there is a need for an innovative, generic, conceptually clean and application-independent approach for spatio-temporal handling data. This paper presents behavioral aspect of the spatio-temporal databases for managing and querying moving objects. Our objective is to impelement and extend the Spatial TAU (STAU) system developed by Dr.Pelekis that provides spatio-temporal functionality to an Object-Relational Database Management System to support modeling and querying moving objecs. The results of the impelementation are demonstrated in this paper.

• 한국경영과학회:학술대회논문집
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• 대한산업공학회/한국경영과학회 2000년도 춘계공동학술대회 논문집
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• pp.695-699
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• 2000

The success of quality management is depend on will of TOP and flexibility in the field. Moreover, the level of standardization of the company is the important index for activation of quality management and establishment of $\boxDr$Prevention Manufacturing Systems$\boxUl$. Six sigma, which is highlighted recently, totally certify the paradigm shift from Management by AFTER to management by BEFORE and regard as a scientific, statistic expression of management activity for understanding customer's needs correctly. So in this paper I introduce the Samsung Corning quality management system and all. sorts of related systems for process improvement receiving positively change of

• Applied Science and Convergence Technology
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• 제26권5호
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• pp.95-109
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• 2017

There are several contributions to the gas load of a system of which often the most important is outgassing. Adsorption occurs via two main processes, physisorption and chemisorption, and can be described using five (or six) classifying isotherms. Outgassing is the result of desorption of previously adsorbed molecules, bulk diffusion, permeation and vapourisation. Looking at the desorption rate, pumping speed and readsorption on surfaces, the net outgassing of the system can be calculated. There is significant variation in measured outgassing rates between different materials but also between published rates for the same materials, in part due to the number of different methods used to measure outgassing. This article aims to review the outgassing process, outgassing rates, measurement methods and techniques that can be used to reduce the outgassing of a system.

• 품질경영학회지
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• 제33권2호
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• pp.64-73
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• 2005

In this paper, we introduce MTS(Mahalanobis-Taguchi System) Method which is suggested Dr. Taguchi in later 1990. We apply MTS Method for Quality Competitive Appraisal System(QCAS) Model which is executived from 1997 by Agency for Technology and Standards, Ministry of Commerce, Industry and Energy(MOCIE). We can measure company Quality competitive by using MTS. MTS Measure can not be compared statistical sum by calculated QCAS. MTS can be possible distinct subtle which can not distinct using statistical sum. Also MTS Method can seek more strong effect factor among of many factor. If A Company use MTS Method, can find vital factor and level of destination.

• 대한상한금궤의학회지
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• 제13권1호
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• pp.111-119
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• 2021

Objectives: This case study aimed to report the effect of Sihogyejigungang-tang (SGGT) on headache with dyspepsia based on the disease pattern identification diagnostic system (DPIDS) based on the Shanghanlun provisions. Methods: According to the DPIDS based on the Shanghanlun provisions, the patient was diagnosed with Greater Yang Disease Chest Bind and treated with SGGT. The results of treatment were evaluated by a numerical rating scale (NRS), the Korean Headache Impact Test (KHIT-6), and change in clinical symptoms. Results: After administering SGGT for 160 days, the NRS improved from 9 to 1 and the KHIT-6 improved from 70 to 44. No serious treatment-related adverse events were reported. Conclusions: This study shows the effective treatment of headache with dyspepsia using SGGT based on the DPIDS based on the Shanghanlun provisions.