• 한국정보처리학회논문지
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• 제2권1호
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• pp.75-80
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• 1995

이 논문에서는 데이타 통신에서 발생되는 오류를 정정하기 위해 많이 사용되고 있는 RS 부호의 3항 기약다항식에서 새로운 Trace연산 알고리즘에 대해 고찰한다. 이 방법은 기존의 방법에 비해 Trace을 간단한 연산으로 구할 수 있다. 이 새로운 알고리 즘은 복잡한 연산을 피함으로써 연산시간을 줄일 수 있고, 복호화 과정을 간략히 할 수 있어서, 같은 정도의 데이터 신뢰도를 얻는데 효과되는 노력을 감소시킬 수 있다. 새로운 Trace 연산 알고리즘과 기존의 Trace 정의에 따른 방법은 SUN SPARC2 workstation상에서 C-언어로 구현한 결과를 비교, 분석하였다.

• 전자공학회논문지B
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• 제32B권6호
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• pp.849-861
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• 1995

In this paper, a new trace driven simulation algorithm is proposed to evaluate the bus traffic and the miss ration of the various sector cache memories, which have various sub-block sizes and block sizes and associativities and number of sets, with a single pass through an address trace. Trace-driven simulaton is usually used as a method for performance evaluation of sector cache memories, but it spends a lot of simulation time for simulating the diverse cache configurations with a long address trace. The proposed algorithm shortens the simulation time by evaluating the performance of the various sector cache configurations. which have various sub-block sizes and block sizes and associativities and number of sets , with a single pass through an address trace. Our simulation results show that the run times of the proposed simulation algorithm can be considerably reduced than those of existing simulation algorithms, when the proposed algorithm is miplemented in C language and the address traces obtained from the various sample programs are used as a input of trace-driven simulation.

• 한국안광학회지
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• 제15권1호
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• pp.99-104
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• 2010

목적: 아산지역에서 일부 초등학생들을 대상으로 자동안굴절계를 이용한 굴절검사 값과 조절마비제를 사용하지 않고 iTrace로 조절력을 배제하여 굴절력을 측정한 값을 비교하고자 하였다. 방법: 2009년 9월부터 12월까지 12~13세 42안을 대상으로 현성굴절상태에서 자동 안굴절계를 이용한 자동굴절검사와 iTrace를 이용한 굴절검사를 실시하였다. iTrace를 이용한 굴절검사는 원거리(5 m 이상)와 근거리(눈 앞 30cm)를 주시하도록 한 후 측정하였다. 모든 측정치는 등가구면 굴절력으로 나타냈고, 굴절이상의 정도에 따라 그룹 1(-0.50D < ~ < +1.00D)과 2(-0.50D 이하)로 분류하였다. 결과: 자동굴절검사, iTrace를 이용해서 측정한 원거리 및 근거리 주시시의 평균 등가구면 굴절력은 각각 1.08${\pm}$0.77D, -0.29${\pm}$0.95D와 2.34${\pm}$0.67D였다(p<0.001). 대상자의 52.4%에서 원거리 주시시 보다 자동굴절검사의 결과는 근시인 0.50D~-1.00D로 측정되었다. 그룹 l과 2에도 검사방법 간의 평균 등가구면 굴절력은 자동굴정검사로 측정한 값이 원거리 주시시의 측정치에 비해 두 그룹 모두 통계적으로 유의하게 근시방향으로 측정되었다. 결론: 자동굴절검사와 5m 이상의 원거리용 응시한 후 iTrace로 측정한 굴절검사의 굴절력은 0.79${\pm}$0.34D의 차이를 보여 자동굴절검사 값이 통계적으로 유의하게 감소된 굴절력을 나타냈다.

• 충청수학회지
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• 제33권2호
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• pp.301-305
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• 2020

Logarithmic fractional Sobolev trace inequalities are derived as a generalization of the results in [6, 9].

• Asian-Australasian Journal of Animal Sciences
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• 제23권11호
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• pp.1527-1534
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• 2010

Trace minerals such as zinc, copper, and manganese are essential cofactors for hundreds of cellular enzymes and transcription factors in all animal species, and thus participate in a wide variety of biochemical processes. Immune development and response, tissue and bone development and integrity, protection against oxidative stress, and cellular growth and division are just a few examples. Deficiencies in trace minerals can lead to deficits in any of these processes, as well as reductions in growth performance. As such, most animal diets are supplemented with inorganic and/or organic forms of trace minerals. Inorganic trace minerals (ITM) such as sulfates and oxides form the bulk of trace mineral supplementation, but these forms of minerals are well known to be prone to dietary antagonisms. Feeding high-quality chelated trace minerals or other classes of organic trace minerals (OTM) can provide the animal with more bioavailable forms of the minerals. Interestingly, many, if not most, published experiments show little or no difference in the bioavailability of OTMs versus ITMs. In some cases, it appears that there truly is no difference. However, real differences in bioavailability can be masked if source comparisons are not made on the linear portion of the dose-response curve. When highly bioavailable chelated minerals are fed, they will better supply the biochemical systems of the cells of the animal, leading to a wide variety of benefits in both poultry and swine. Indeed, the use of certain chelated trace minerals has been shown to enhance mineral uptake, and improve the immune response, oxidative stress management, and tissue and bone development and strength. Furthermore, the higher bioavailability of these trace minerals allows the producer to achieve similar or improved performance, at reduced levels of trace mineral inclusion.

• 대한예방한의학회지
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• 제4권2호
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• pp.25-56
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• 2000

Trace element are involved in enzymatic activities, immunological reactions. physiological mechanisms. Deficiency in some trace elements, such as iron and iodine. is still an important health problem, The role of trace elements deficiency is suspected in various clinical situations and is now confirmed by well designed supplementation studies. However, the importance of trace elements as chinese herbal constituents is not sufficiently appreciated by the oriental medical profession, although in recent years a significant increase of new finding on their essential character in chinese herbal medicine occurred. It is well known that herbal medicine contains a variety of trace elements which would show therapeutic effects with active components in herbal medicine . In china, recent work showed some positive correlation between trace element and traditional chinese medicine (TCM) in terms of therapeutic effects even if their role in therapeutic effects is still obscure. In korea, not much attention has been on the therapeutic importance of trace element contained in herbal medicine Here, the therapeutic effects of trace element in TCM were reviewed and summarized. 1. Iron, copper, zinc and manganese are mainly contained in TCM. In addtion, chromium, magnesium, molybdenum, nickel, alminium, cobalt, arsenic and selenium has been studied for their therapeutic effects 2. Zinc, is decreased in patients who have deficiency of kindney(腎虛) and chronic disease. Fe is decreased in patients who have deficiency of blood(血虛). However copper is increased in patients who have chronic disease and hepatic disease.3 Iron concentration is high in herbs used for tonifying and nourishing yin or blood(補陰補血藥) Zinc concentration is high also in herb used for tonifying kidiney and vital essence(補腎補精藥). In addition. copper concentration Is high in herb used for replenishing qi(補氣藥) 4 In herbal drugs, the therapeutic substances in TCM are not only organic but also inorganic. It seems that trace elements would be one of components in herb for its therapeutic effects. This indicates that therapeutic effects of TCM should be extended not only to herb itself, bur also to trace elements contained in herb.

• 한국지하수토양환경학회지:지하수토양환경
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• 제23권5호
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• pp.37-44
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• 2018

Soil trace elements and their bioaccumulation in agricultural products have attracted widespread concerns, yet the crop uptake characteristics of trace elements in different soil-plants systems have been rarely investigated. Experiments were carried out to investigate the effect of soil properties on trace element concentrations in cabbage and radish. Soil pH and total organic matter were major factors influencing trace elements transfer from soil to vegetables. Inclusion of other soil properties in the stepwise regression analysis improved the regression models for predicting trace element concentrations. Consideration of other soil properties should be taken into account for more precise prediction of trace element concentrations in the two vegetables, which could help quantitatively evaluate the ecologic risk of toxic trace elements accumulation in crops.

• Asian-Australasian Journal of Animal Sciences
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• 제15권9호
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• pp.1312-1318
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• 2002

A feeding trial using sows and their neonates was conducted to determine the effects of source and level of organic trace mineral supplementation on reproductive performance of sows and the subsequent performance of their neonates through 2 wk post weaning. A total of 16 gestating sows ($Landrace{\times}$Yorkshire) in parities 2 to 4 were randomly assigned to 4 dietary treatments following a $2{\times}2$ factorial arrangement in a completely randomized design. One of the two factors evaluated the effect of the source (inorganic vs organic), and the second factor evaluated the effect of the level (low vs high) of trace minerals added to the diet. The trace mineral premixes were formulated to provide a low concentration of trace minerals (50 ppm Fe/87.5 ppm Fe, 17.5 ppm Cu/85 ppm Cu, 45 ppm Zn/60 ppm Zn, and 20 ppm Mn/17.5 ppm Mn), and a high concentration of trace minerals (100 ppm Fe/175 ppm Fe, 35 ppm Cu/170 ppm Cu, 90 ppm Zn/120 ppm Zn, 40 ppm Mn/35 ppm Mn), when included at 0.20% in sows'/weaned pigs' diets, respectively. The total number born, total born alive and weaned, and the average neonate weight at birth were affected neither by the dietary source nor by the level of trace minerals (p>0.05), but an interaction effect (p<0.05) between the source and level of trace minerals was observed on the average weight at weaning. The neonates from sows fed the low level of organic trace minerals gained weight at an equal rate compared with those farrowed by sows fed the high level of inorganic trace minerals. Sows fed the organic trace minerals nursed their young with milk higher in Fe and Zn (p<0.05) compared with those fed diets with inorganic trace minerals. Consequently, the weaned pigs receiving the organic form of trace minerals tended to grow at a faster rate, consumed less feed and tended to utilize their feed more efficiently (p<0.10). It was further observed that the organic trace minerals significantly increased (p<0.05) Fe contents in the liver and serum, and Zn in the serum and bone. In conclusion, sows and neonates fed the organic minerals at low level showed similar performance compared with those fed the inorganic minerals at high level as specified in this study.

• 한국콘텐츠학회논문지
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• 제11권9호
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• pp.76-84
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• 2011

본 논문에서는 인터랙티브 미디어 작품 제작에 적용 가능한 개념을 제안하고 개념이 적용된 미디어 아트작품에 대한 사용자 경험과 그것에 대한 결과물을 통해 개념의 타당성과 그 가능성을 시험해보고자 한다. 이를 위해 사용자 인터랙션 흔적을 아날로그와 디지털 형태로 남기도록 하는 '에이디-트레이스(AD-Trace)'라는 개념을 세우고, 이를 적용한 다양한 인터랙티브 미디어 아트 작품 창작을 시도하였다. 에이디-트레이스는 디자인 요소로서 '아날로그 흔적(Analogue Trace)', '디지털 흔적(Digital Trace)', 그리고 두 요소를 연결하면서 사용자의 인터랙션을 유도하여 보다 의미 있는 흔적을 남길 수 있도록 지원하는 '인터랙션 메타포(Interaction Metaphor)'를 갖는다. 이 세 가지 요소는 본 연구자의 세 개 작품인 '에이디-피디(AD-PD)', '에이디-스타(AD-Star)', 그리고 '에이디-맵(AD-Map)'에서 각 작품의 콘셉트에 맞게 디자인 되었으며, 사용자 참여 후 얻어진 결과물을 통해 에이디-트레이스가 가질 수 있는 특성을 분석하였다.

• 한국정보통신학회논문지
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• 제12권6호
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• pp.1095-1100
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• 2008

이 논문에서는 곤충 발자국의 패턴을 인식하기 위해, 인식의 기본 단위인 세그먼트를 자동 추출하는 기법과 Trace transform을 이용하여 발자국 인식에 필요한 특징을 추출하는 기법을 제안하였다. Trace transform 방법을 이용하면 패턴의 이동, 회전, 반사에 불변하는 특징 값을 얻을 수 있다. 이러한 특징 값들은 곤충 발자국과 같이 다양한 변형이 존재하는 패턴을 인식하는 데에 적합하다. 특징 값을 도출하기 위한 첫 번째 단계로는 추출된 세그먼트에 대한 Trace transform을 통해 새로운 Trace 이미지를 생성시킨다. 그런 다음, 병렬로 표현되는 trace-line을 따라 특성 함수에 의해 특징들이 일차적으로 도출되고, 또 다시 도출된 특징들은 diametric, circus 단계의 함수를 거치면서 새로운 특징값으로 재구성된다. 2가지 서로 다른 곤충의 발자국 패턴을 이용하여 실험한 결과 곤충 발자국의 이동, 회전, 반사에 관계없이 인식에 적합한 특징 값들이 추출됨을 확인할 수 있었다.