• 한국미생물·생명공학회지
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• 제49권3호
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• pp.425-431
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• 2021

The use of big data may facilitate the recognition and interpretation of causal relationships between disease occurrence and climatic variables. Considering the immense contribution of rhinoviruses in causing respiratory infections, in this study, we examined the effects of various climatic variables on the seasonal epidemiology of rhinovirus infections in the temperate climate of Cheonan, Korea. Trends in rhinovirus detection were analyzed based on 9,010 tests performed between January 1, 2012, and December 31, 2018, at Dankook University Hospital, Cheonan, Korea. Seasonal patterns of rhinovirus detection frequency were compared with the local climatic variables for the same period. Rhinovirus infection was the highest in children under 10 years of age, and climatic variables influenced the infection rate. Temperature, wind chill temperature, humidity, and particulate matter significantly affected rhinovirus detection. Temperature and wind chill temperature were higher on days on which rhinovirus infection was detected than on which it was not. Conversely, particulate matter was lower on days on which rhinovirus was detected. Atmospheric pressure and particulate matter showed a negative relationship with rhinovirus detection, whereas temperature, wind chill temperature, and humidity showed a positive relationship. Rhinovirus infection was significantly related to climatic factors such as temperature, wind chill temperature, atmospheric pressure, humidity, and particulate matter. To the best of our knowledge, this is the first study to find a relationship between daily temperatures/wind chill temperatures and rhinovirus infection over an extended period.

• 한국식품영양과학회지
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• 제26권6호
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• pp.1221-1227
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• 1997

To measure nutritional components and physical quality of Wanja-jeon(Korean pan fried meat balls)was investigated during storage in a simulated hospital cook/chill foodservice system. The Wanja-jeon was cooked and stored for 4 weeks in chill conditions of 2 and 7$^{\circ}C$ and then reheated in the microwave oven. Moisture, protein, and fat contents were decreased little during 4 weeks storage at 2 and 7$^{\circ}C$. Total unsaturated fatty acids(TUFA) and polyunsaturated fatty acids(PUFA) increased slightly at 7$^{\circ}C$ storage. Total free amino acid contents were reduced after 4 weeks of storage, while total amino acids were affected little during chilled storage. However, volatile basic nitrogen(VBN) increased during the 4 weeks storage from 11.2mg%, immediately after cooking, to 14.1~14.2mg%. After reheating, thiobarbituric acid(TBA) value increased more significantly to 0.19 and 0.20.

• 한국통신학회:학술대회논문집
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• 한국통신학회 1996년도 추계종합학술발표회 논문집
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• pp.603-606
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• 1996

• 국제 전기통신 표준화 소식
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• 통권30호
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• pp.195-226
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• 1993

본기고서는 객체지향 CHILL을 설계하기 위한 하나의 작업으로써 중복 기능의 다양한 측면들을 간략하게 나태내고자 한다.

• 한국포장학회지
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• 제20권2호
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• pp.59-63
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• 2014

단감을 저온피해 정도에 따라 저온저장하여 품질변화를 조사하였다. 중량감모율은 모든 처리구간에 큰 차이는 없었지만, 저온피해 정도와 저장기간이 길어질수록 모든 처리구에서 중량감소를 보였다. 경도의 경우는 단감의 품질을 좌우하는 중요한 요소로 저온피해가 길어질수록 경도가 낮아지면서 연화가 빨리 진행되었다. 정상과는 25.5 N에서 큰 변화는 없었다. 반면에 저온피해 1일과는 26.7 N에서 점점 낮아져 18.2 N까지 낮아졌으며, 저온피해 3일과는 16.1 N에서 12.22 N으로, 저온피해 5일과는 10.8 N에서 5.8 N까지 낮아졌다. 가용성 고형물 함량과 총산함량은 처리구간에 유의적인 차이는 없었다. 에틸렌은 정상과보다 2배의 에틸렌을 생성하였다. 저온피해가 심해질수록 에틸렌의 발생량은 증가하였고, 경도변화와도 관련됨을 알 수 있었다.

• ETRI Journal
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• 제18권4호
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• pp.265-286
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• 1997

This paper presents a new software development environment that supports an integrated methodology for covering all phases of software development and gives integrated methods with tools for ITUT (Telecommunication Standardization Section of the International Telecommunication Union) languages. The design of the environment to improve software productivity and quality is based on five main concepts: 1) formal specifications based on SDL (Specification and Description Language) and MSC (Message Sequence Charts) in the design phase, 2) verification and validation of those designs by tools, 3) automatic code generation and a safe separate compilation scheme based on CHILL (CCITT High-Level Language) to facilitate programming-in-the-many and programming-in-the-large. 4) debugging of distributed real-time concurrent CHILL programs, and 5) simulation of application software for integrated testing on the host machine based on CHILL. The application results of the environment compared with other approaches show that the productivity is increased by 19 % because of decreasing implementation and testing cost, and the quality is increased by 83 % because of the formal specifications with its static and dynamic checking facilities.

• 한국주조공학회지
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• 제20권6호
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• pp.400-406
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• 2000

Computer simulation for the predictions of casting defects is very important to produce high quality castings with less cost. Complicate shaped Al solenoid housing part was selected to be cold chamber die cast and a numerical simulation technique was applied for the optimization of the chill vent position and gating. A first design led to insufficient central flow. This flow left the last filled areas falling into the inner portion of the part. And last filled area did not fit the chill vent position. So these resulted in a high possibility of air entrapment in the casting and the design was not proper for the part. The design was improved by using a proper gating system, a more chill vent and proper overflow positions. New design provided a homogenous mold filling pattern and the last filled areas that being located at the overflow and chill vent. Casting plan which produce good quality solenoid housing part was established by using the computer simulation.

• 한국정보처리학회논문지
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• 제4권8호
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• pp.1987-1994
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• 1997

ATM 교환기 소프트웨어 품질 특성은 신뢰성이 높고 기능성, 확장성 및 유지 보수성이 조아야만 한다. 소프트웨어의 개발 과정이나 설계 후에 이러한 품질 특성이 만족되었는지의 여부를 평가하고 검증하는 테스팅 도구들은 많이 개발되어 왔으나 ATM 관련 소프트웨어의 품질 평가 도구는 기능성에서 뒤떨어지고 품질면에서도 부적합하다. 본 논문에서는 CHILL 언어로 작성된 ATM 교환기 소프트웨어를 대상으로 이를 평가하기 위한 테스팅 분석자료, 디버깅 및 유지 보수 정보를 제공하는 정적 도구를 설계하여 구현한다. 이 도구는 입력 프로그램에 대한 높은 가시성을 제공하여 병렬 프로세싱에 관한 정보를 통계표와 그래프로 나타내는 특성을 갖는다.

• 사상체질의학회지
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• 제28권4호
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• pp.372-380
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• 2016

Objectives We report a case which is based on Sasang constitutional Medicine for Soyangsangpungjeung of Soyangin who has chill and fever. Methods We have treated a Soyangin patient that had chill and fever which was diagnosed as Soyangsangpungjeung. We prescribed oriental medicine therapy focused on herbal medicine for that physical symptoms. The improvement of that symptoms was evaluated. Results After using oriental medicine therapy, patient's physical symptoms were improved. Conclusions This case study showed an efficient result of using oriental medicine therapy, especially herbal medicine in Soyangsangpungjeung of Soyangin.

• International Journal of Naval Architecture and Ocean Engineering
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• 제11권1호
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• pp.462-473
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• 2019

The effects of the location and dimension of the gate, location, and volume of the feeder, application of a chill, chill volume, and heating method of the feeder with respect to the effect of the mold-designing technologies on the defect status of the products are described. It is possible to increase the solidification time of the feeder by heating feeder. Furthermore, the pressure generated from the feeder is imposed on a product, and this decreases the generation of shrinkage porosities. In this study, two types of gating and feeding systems had been proposed: the bottom L-type junctions and the top L-type junctions. Additionally, solidification behaviors, such as solidification time, shrinkage porosities, weight percentage of chill system to product, hot spot, and solidification time ratio (=Solidification time of feeder/solidification time of product), are extensively analyzed by using commercial casting simulation software. Based on the solidification behaviors, reasonable mold design, feeding system, critical feeder heating temperature, and solidification time ratios are proposed in the sand casting process for the fabrication of carrier housing in order to reduce the casting defects and to increase the recovery rate.