• 반도체디스플레이기술학회지
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• 제5권4호
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• pp.17-22
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• 2006

In the manufacturing processes of semiconductor, test process is important for quality of products. In the manufacturing process of dynamic memory, memory test is more important. So, automatic test equipment(ATE) is used necessarily. But, according to increase of speed of dynamic memory operation, the rapid test equipment is needed. Impedance matching between ATE and dynamic memory is expected to be an important problem for making a rapid test equipment over 1Gbps. According to increase of speed, inner impedance of ATE also works on important parameter for test. This paper is about the method that is for impedance matching of inner impedance and coaxial cable occurring in manufacturing of ATE. We proved effects of inner impedance by electric theory and verified the method of impedance matching using computer simulation.

• 한국전자통신학회논문지
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• 제15권3호
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• pp.389-396
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• 2020

좋은 품질의 제품을 얻기 위해서는 제품 자체에 대한 품질 적합성 검사 이전에 생산 및 시험 관련 설비에 대한 적절한 검증이 반드시 선행되어야 한다. 다양한 생산 및 시험 관련 설비 중에서도 ATE는 오늘날 자동차산업, 항공·우주산업, 반도체산업과 같은 민간분야 뿐만 아니라, 방위산업의 군수품 생산 및 성능시험에도 활발히 사용되고 있다. 본 논문은 다양한 방법을 활용하여 군용 FM 무전기 세트의 자동시험장비 인 ATS에 대해 체계적으로 설계 적합성 검증을 실시 한 결과를 다루고 있으며, 군수품 ATE에 대한 설계 적합성 검증 절차가 명문화 되어있지 않은 현 시점에 좋은 참고자료가 될 것으로 기대된다.

• 한국환경보건학회지
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• 제35권1호
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• pp.45-52
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• 2009

In recent years, pharmaceuticals in the aquatic environment have become a matter of increasing public concern. Environmental risk assessment (ERA), including an exposure assessment, is considered the best scientifically based approach for evaluating the potential effects of pharmaceuticals on ecosystems. Computerized exposure models constitute an important tool in predicting environmental exposures of pharmaceuticals. This paper presents the applicability of an exposure model by comparing measured data of selected pharmaceuticals with predicted environmental concentrations from an exposure model. $PhATE^{TM}$ (Pharmaceutical Assessment and Transport Evaluation) model developed by the Pharmaceutical Research and Manufacturers of America (PhRMA) was adapted to run simulations for the Keum River. A set of 7 pharmaceuticals of high production in Korea was modeled. The PECs generated by the $PhATE^{TM}$ model that were then compared to the measured concentrations. The $PhATE^{TM}$ model predicted concentrations for 7 pharmaceuticals including acetaminophen, acetylsalicylic acid, erythromycin, ibuprofen, lincomycin, mefenamic acid, and naproxen were in good agreement with actual measured concentrations, which demonstrated the utility of $PhATE^{TM}$ as a predictive tool. In conclusion, $PhATE^{TM}$, although it does not intend to accurately represent reality, could be utilized for rapid predictions of the environmental concentrations of pharmaceuticals.

• Journal of Nutrition and Health
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• 제31권6호
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• pp.1006-1013
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• 1998

The present study was conducted to investigate the effect of different levels of ethanol ingestion on 131ate metabolism and plasma homocysteine concentration in Sprague-Dawley male rats receiving 0, 10, 30% of their caloric intake as ethanol for S weeks. Diets containing 10% ethanol had no effect on plasma and red blood cell(rbc) 131a1e. However, in rats fed a 30% ethanol diet, rbc folate increased and plasma 131ate decreased significantly, In the rats maintained first on a 30% ethanol diet for S weeks and then on a control diet for 2 weeks, the levels of plasma and rbc f31ate were normalized by withdrawal of ethanol. Urinary fo1ate excretion increased markedly in rats fed 10% and 30% ethanol diets and decreased to 51% of controls by withdrawal of ethanol. Plasma homocysteine concentration increased significantly in rats fed a 30% ethanol diet. The results suggest that chronic ingestion of ethanol increased urinary 131ate excretion markedly, which may decrease plasma 131ate and deplete liver folate.

• 대한지역사회영양학회지
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• 제6권5호
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• pp.789-797
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• 2001

This study was conducted to find the differences in food consumption frequency of the middle aged(male 20, female 50) and the elderly(male 15, female 15) living in Chonju in December, 1998 according to food habits, smoking, alcohol drinking and exercising habit, health status, and the levels of nutrition knowledge and attitude store. The foods frequently consumed among the subjects were kimchi(15.4/week), mixed rice(11.5/week), rice(7.6/week), vegetables in soup, jjigae and jorim(5.0/week), mandarins and oranges(5.e/week), and seasoned laver(4.3/week). There were several factors influencing food consumption patterns. These were age, regularity of meal times, the status of smoking, alcohol drinking and exercising, and the level of nutrition attitude. The elderly ate cooked rice more frequently, while the middle aged ate fish, especially blue fishes more frequently. The middle aged who had breakfast regularly ate milk and milk products, legumes and fruits frequently. Those who smoked seemed to eat less cereals and starches and fats, while those who didn't smoke ate more sugars. The alcohol drinking group also ate less fats and the exorcising group ate almost all of food groups frequently. The status of health showed to be related with food consumption patterns. The normal group in hemoglobin ate eggs more frequently than the anemia group and the high risk group in blood pressure ate almost all of food groups more frequently. The high level group for nutrition attitude score chose vegetables, fruits, and milk and milk products more frequently than the other groups. On the other hand, low level group for nutrition attitude score was apt to eat ramyun, ham-sausage, and carbonated beverages more frequently. Therefore, nutrition education to improve the food habits find to change nutrition attitude is necessary to promote health status anti mole attention should be taken to the high risk group in blood pressure to guide proper food and nutrition intakes.

• Nutrition Research and Practice
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• 제16권3호
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• pp.379-391
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• 2022

BACKGROUND/OBJECTIVES: We investigated the associations between eating away from home (EAFH) and overweight and obesity among Ugandan adults using the 2014 Uganda non-communicable disease risk factor survey. SUBJECTS/METHODS: In total, 3,025 participants aged 18-69 years were included in the analysis. The frequency of EAFH was assessed by asking participants the number of meals eaten per week that were not prepared at a home. EAFH frequency was categorized as; less than once/week, 1-2 times/week, or ≥ 3 times/week. Logistic regression was used to evaluate the associations between overweight, obesity, and EAFH. We also tested whether sex and age modified these associations. RESULTS: Participants that ate away from home ≥ 3 times/week were 2.13 times more likely to be obese than those that ate away from home less than once/week (odds ratio [OR], 2.13; 95% confidence interval [CI], 1.28-3.54). However, when the analysis was stratified by sex, women that ate away from home ≥ 3 times/week were 42% less likely to be overweight than those that ate away from home less than once/week (OR, 0.58; 95% CI, 0.36-0.94). Men that ate away from home ≥ 3 times a week were 3.89 times and 2.23 times more likely to be obese and overweight, respectively, than those that ate away from home less than once/week (obesity: OR, 3.89; 95% CI, 1.50-10.09; overweight: OR, 2.23; 95% CI, 1.42-3.51). Age-stratified analysis showed that among participants aged 31-50 years, those that ate away from home ≥ 3 times a week were 3.53 times more likely to be obese than those that ate away from home less than once/week (OR, 3.53; 95% CI, 1.69-7.37). CONCLUSIONS: Frequent EAFH was positively associated with overweight and obesity among men, and obesity among young/middle-aged adults, but negatively associated with overweight in women. Nutritional interventions for obesity reduction in Uganda should include strategies aimed at reducing the frequency of eating meals prepared away from home, and specifically target men and young/middle-aged adults.

• 한국컴퓨터정보학회논문지
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• 제23권3호
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• pp.9-16
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• 2018

In this paper, I purpose one of the development methods for portable Automatic field Test Equipment(ATE) with VME form factor. Almost portable ATE have not used to standards form factor and they are connected by mechanical non-rigid general connectors and wire harnesses among the components. Furthermore, it is hard to reuse developed board. So, it decreases to reusability of developed board and it is hard to maintenance of ATE. Even those things have weakness for vibration and drop test especially in portable ATE. The XK9A1 ATE using VME form factor has environmental reliability through vibration, drop, temperature test. It consists of 5 developed board called the control board, the wire & wireless communication board, the power supply board, the load board and the mother board. It is connected by two wire harnesses between mother board and extern circular connectors. The control board send the data and address to other board though each 16-bit data and 20-bit address line. You can develop the function board what you want to using those data & address line when it comes to needing other function board.

• 한국전자파학회논문지
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• 제15권8호
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• pp.744-751
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• 2004

본 논문에서는 RF소자들의 테스트시 비용 절감을 극대화 할 수 있는 저가형 고속 RF 자동화 테스트 시스템(Automatic Test Equipment, ATE)의 제작에 관하여 다루어진다. 제작된 RF ATE는 고속의 스위칭 시간과 고정밀 디지타이저를 포함한 16개의 독립적인 RF 입출력 단자를 갖고 있으며 산업 표준인 VXI(Versus module eXtensions for Instrument)와 GPIB(General Purpose Interface Bus) 인터페이스를 사용하여 구성된다. 또한 소자의 생산효율을 극대화하기 위하여 동시에 4개의 소자를 테스트할 수 있도록 시스템이 구성된다. 마지막으로 현재 가격 경쟁이 상당히 심한 소자 중 하나인 RF 전력증폭모듈올, 제작된 RF ATE를 이용하여 테스트를 진행하여 시스템 성능을 검증한다.

• 대한지역사회영양학회지
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• 제17권3호
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• pp.280-289
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• 2012

The objective of this research was to explore the influences of 'having a meal with someone' on individuals' eating pattern. Eating is not a simple matter of energy intake but also serves to anchor daily routines being cultivated by people and society. This study was conducted using a cross-sectional eating behavior survey of university students (N = 893, 380 men, 513 women) aged 20 to 24 years. Results were analyzed and presented as frequencies, means and ${\chi}^2$-test with SPSS 14.0. Differences in dietary habits by commensality and solo-eating were observed; Students who ate alone, spent 15 min for a meal and ate convenience food items when they didn't feel hungry. Compared to students who ate alone, those who ate together with someone spent 30 min for a meal and ate more amount of food. Eighty percent of respondents ate more various menus in commensality than solo-eating. They felt lonely when they ate alone and preferred to eat together. In conclusion, university students start to decide and select their own meals by themselves after junior and high school food services which are fixed with regard to menu and the amount. Dietary habits of Koreans rapidly changed concomitant with social changes over the past half century. Governments and health experts recognize that unbalanced meals cause lifestyle-related diseases, in particular obesity. Our research findings will contribute to more comprehensive efficient nutrition education programs in order to prevent obesity and other lifestyle-related diseases in early stages of adulthood.

• 생약학회지
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• 제28권3호
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• pp.149-155
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• 1997

Antaeum(ATE) has been used as a prescription for threatened abortion, associated with pregnancy in traditional medicine. Because gravida could be administered ATE for a long period, its administration might cause a harmful effect on fetus and gravida during the pregnancy. This study aimed to determine whether exposure to ATE caused mutagenicity or hepatotoxicity during the pregnant period. For mutagenicity test of ATE, Salmonella typhimurium and Bacillus subtilis were used as indications for DNA damage. In the Ames test, Samonella typhimurium TA98 and TA100 were used for mutagenicity testing, and the number of histidine revertants was measured. In Rec-assay, Bacillus subtilis H $17(Rec^+)$ and $M-45(Rec^-)$ strains were used to clarify the DNA damage property. In the SOS umu test, Salmonella typhimurium TA15335 containing plasmid pSK1002 was used as a tester strain, and we monitored the levels of umu operon expression by measuring the ${\beta}-galactosidase$ activity. From the tested results, ATE did not show DNA damage and mutagenicity. On the other hand, hepatotoxicity of ATE to female ICR mice was monitored by the measurements of s-GOT, s-GPT and LDH activities after oral feeding for 15 days. ATE did not show significant change of s-GOT, s-GPT and LDH activities in mice sera.