• Nuclear Engineering and Technology
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• 제4권3호
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• pp.181-185
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• 1972

원자로의 전달함수의 측정 data의 처리를 위하여 digital bandpass filter 방법을 고안하였다. 이 방법에 의한 처리는 외부잡음을 제거하는데 대단히 유효하다는 것이 판명되었다. 이 방법에 의한 계산 코드를 작성하였으며 계산기를 사용하여 수치휠러 의 주파수반응 및 수치처리를 삼각파형과 구형파형에 대하여 계산하였으며 그결과를 표시하였다. 이 방법의 오차와 제한사항에 대하여서도 언급하였다.

• 대한심미치과학회지
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• 제31권2호
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• pp.64-74
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• 2022

최근 치과 임상 영역에 디지털이 접목되면서 디지털을 활용한 임상 진료가 점차 일반화되어가고 있다. 현재까지의 디지털 치과진료는 구강스캔 등의 자료채득, 가이드를 활용한 수술, CAD CAM을 사용한 보철물 제작 등의 직접적인 부분에 다소 집중된 감이 있으나, 치과 진료의 시작인 진단 및 치료계획 수립 단계에서도 디지털의 활용은 큰 효용을 가지고 있다. 이번 증례에서는 전치부 수복을 위해 내원한 환자에게 구치부를 포함한 상악 전체의 수복을 이해시키고, 교합고경을 재설정하여 수복하는 과정의 가이드라인으로 사용한 digital mockup의 활용 예를 보고하고자 한다.

• 한국염색가공학회지
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• 제19권4호
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• pp.1-9
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• 2007

In recent years, the application of digital textile printing has increased. The benefits of using this method include the ease of sampling and the production of printed textiles. However, the production process of digital textile printing differs from that of conventional printing. For successful digital textile printing by ink-jet technology, the pretreatment of fabrics is very important in order to overcome the following problems. Low viscosity ink can spread easily on the textile surface leading to poor resolution. As a result, the combination of ink and pretreatment chemicals is still impractical and consequently most fabrics used in digital textile printing will require a pre treated coating in order to prevent the ink colours from bleeding on the fabric. Research presented in this paper shows some preliminary attempts to establish the relationship between the pre treatment and the digital textile printing quality. Various cotton fabrics were treated with pre treatment agents including ingredients like thickener, alkali and humectant, and then ink spread effect and colour yield of printed fabrics by reactive ink were analysed by using an optical microscope and K/S value. The results show that digital textile printing quality on cotton fabrics can be optimized with appropriate pre treatments.

• 말소리와 음성과학
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• 제14권4호
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• pp.57-66
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• 2022

본 연구는 '디지털 치료제'의 정의를 확인하기 위해 이와 관련된 연구들을 통해 확인해보고, 디지털 치료제의 개발 동향을 국내 수준에서 조사해 보았다. 그리고 2015년 이후 연구 자료를 대상으로 디지털 치료제가 의사소통장애 분야에서 언어장애와 말장애 대상자들 중 어떤 장애 분야에 적용된 연구가 진행되어 왔는지 그리고 어떠한 기술이 적용된 연구가 이루어 왔는가 역시 분석해 보았다. 그 결과 디지털 치료제는 소프트웨어라는 점, 예방·관리·치료하기 위해 환자에게 적용되는 소프트웨어적인 치료제이며 근거 기반 치료를 제공하는 소프트웨어로 정의할 수 있다. 디지털 치료제와 관련해서 엄청난 투자를 진행하고 있고 이와 더불어 관련된 연구도 지속적으로 증가하고 있음을 확인할 수 있었다. 다음으로 의사소통장애 대상자에게 디지털 치료제를 적용한 2015년 연구 사례를 분석한 결과 언어장애에 해당하는 연구가 전체 22편 중에서 17편으로 주를 이루었고, 말장애 분야 연구, 일반아동을 대상으로 한 연구, 전문가를 대상으로 한 연구가 있었다. 디지털 치료제에 적용될 수 있는 다양한 기술 중 가장 많이 적용된 기술은 가상현실과 증강현실이었다. 가상현실보다는 증강현실을 적용한 연구가 대부분이었음을 확인할 수 있었고 AI를 적용한 연구도 있었다. 그리고 디지털 치료제의 적용 후 효과는 대부분 긍정적으로 나타났고, 디지털 치료제 개발과 관련해서 대부분은 콘텐츠 개발에 중점을 두고 있으나 한 편의 연구는 앱 개발을 위해 진행된 연구다. 향후 연구에서는 보다 다양한 의사소통장애 대상자에게 적용 가능한 소프트웨어를 개발하고 보다 광범위한 기술을 적용한 연구들이 꾸준히 이루어지고 이러한 분야에 대한 정부의 적극적인 지원도 이루어지기를 기대해 본다.

• 한국의류산업학회지
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• 제15권5호
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• pp.808-814
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• 2013

In this study, The mixture of three kinds of pre-treatment agents, Carboxymethyl cellulose sodium salt(CMC), Sodium alginate and Dextrin, have been prepared for the better coloration of digital textile printing. To get sharpness of outline during digital printing process, the optimal formulation is the CMC and Sodium alginate mixture 1:1 ratio by volume. Cyan, Yellow, and Black colours are excellent on the Sodium alginate mixtures. But, Magenta is excellent in the CMC and Dextrin mixture. Sharpness and printability are closely related to viscosity of the mixture. The most optimal sharpness of outline achieved with a consideration of coloring, and field operations account for production when the viscosity of the mixed pre-treatment agent approximately is 10~13 cSt. Change in shade and staining of wash fastness for all the treated samples with the mixtures rated 4-5 grade. Both dry rubbing fastness to shade change and staining are good in the treated samples, whereas wet rubbing fastness rated 2-3 grade. To improve wet rubbing fastness, the Sodium alginate and Dextrine mixture, which rated 3-4 grade for Black color, is applicable. With exception of 3 rating to black color, Light fastness is 4 rating for the remaining three colors in the regardless of treatment condition and mixing of the pre-treatment agent. Dry cleaning fastness of all samples are also 4-5 rating.

• 대한치과의사협회지
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• 제52권1호
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• pp.17-26
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• 2014

Computerized 3D virtual dental models are currently available, and their use has started to improve treatment outcomes. The accuracy of digital models has been demonstrated by many studies and various intra-oral scanners are innovated for short scanning time and high precision. Recently, a digital model was combined with a high technology computer-driven system, which was developed for the application of a digital set-up and indirect bonding of lingual attachments. In this section, virtual treatment planning using a virtual set-up program is be introduced, and the clinical applications and accuracy of computer-generated indirect bonding are discussed.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2003년도 ICCAS
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• pp.1757-1762
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• 2003

With distribution industrial control system, the use of low cost to achieve a highly reliable and safe system in real time distributed embedded application is proposed. This developed intelligent node is based on two microcontrollers, one for the execution of the application code, also as master controller for ensuring the real time control & the logic operation with PLD and other for communication task and the easy control execution, i.e., I/O digital input, digital output and interrupting. This paper also presents where the case NCS (Networked control system) with LonTalk protocol is applied for the filtration process control system of a small water treatment plant.

• 한국조명전기설비학회:학술대회논문집
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• 한국조명전기설비학회 2004년도 춘계학술대회 논문집
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• pp.404-411
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• 2004

With distribution industrial control system, the use of low cost to achieve a highly reliable and safe system in real time distributed embedded application is proposed. This developed intelligent node is based on two microcontrollers, one for the execution of the application code, also as master controller for ensuring the real time control & the logic operation with CPLD and other for communication task and the easy control execution, i.e., I/O digital input, digital output and interrupting. This paper also presents where the case NCS (Networked control system) with LonTalk protocol is applied for the filtration process control system of a small water treatment plant.

• 한국조명전기설비학회:학술대회논문집
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• 한국조명전기설비학회 2003년도 학술대회논문집
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• pp.243-249
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• 2003

With distribution industrial control system, the use of tow cost to achieve a highly reliable and safe system in real time distributed embedded application is proposed. This developed intelligent node is based on two microcontrollers, one for the execution of the application code, also as master controller for ensuring the real time control & the logic operation with PLD and other for communication task and the easy control execution, i.e., I/O digital input, digital output and interrupting. This paper also presents where the case NCS(Networked control system) with LonTalk protocol is applied for the filtration process control system of a small water treatment plant.

• 패션비즈니스
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• 제15권5호
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• pp.43-54
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• 2011

Digital Textile Printing(DTP) is appropriate for quick response system(QRS) and is closely connected with high value added fashion industry. Fashion products of high price are mainly silk and cotton. For high quality DTP products, it is important to optimize the parameters of media, pre and after-treatment, ink, printer, etc. DTP for these two fiber materials is also accompanied certainly with steaming as after-treatment process for coloration. Role of steam is like water in exhaustion dyeing. Steam can diffuse dye or ink in printing paste to fiber. Quality of DTP products depend on after-treatment processes such as steaming, washing, drying. Current production amount of DTP is smaller than one of conventional textile printing. However conventional after-treatment system has been using so far. This is mismatched with DTP in terms of process efficiency, spot work of small lot, quality control. In this study, continuous after-treatment system has been suitably designed for DTP that washing and drying are available after steaming. So, It is possible to improve efficiency of DTP process. Especially, the effects of after-treatment process, such as temperature of heat drum, steaming time on printability, color difference, color fastness were examined. Two types of samples(cotton knit and silk fabrics) were used. The results were obtained as follows : First, there is no a wide difference between the K/S values of cotton and silk treated with continuous after-treatment system and those of sample treated with conventional printing after-treatment method. So it is more effective to use the continuous after-treatment system than conventional printing after-treatment system in case of the daily throughput of 1,000 yards below. Second, after continuous after-treatment for DTP, K/S values were increased and lightness($L^*$) values were decreased. ${\Delta}E$ values were below 2.3. Third, DTP samples treated with continuous after-treatment system were tested for fastness(washing, light, rubbing). Grades of fastness(washing, light, rubbing) were above 3 grade.