• 문화기술의 융합
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• 제6권1호
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• pp.163-169
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• 2020

2025년 초고령 사회 진입이 예상되는 한국은 노인 중심의 사회가 될 것임을 시사하며(통계청, 2018), 노인들이 주로 이용하는 공공시설에 노인의 시각적 특성을 고려한 환경이 구성될 필요가 있다. 본 연구는 한국의 부산시에서 노인인구 비율이 가장 높은 지역에 위치한 근린공원의 환경색채를 Color Universal Design(CUD, CUD 권장색 세트 가이드북, 2013)에 근거하여 노인의 시각 특성을 고려한 환경인지 알아보는 것을 목적으로 한다. 부산시에 위치한 도보권 근린공원으로 5곳을 선정하여 분광측색기(Minolta CM-2600d)와 웹 컬러 조사로 환경색채를 측정하였으며, 측색범위는 바닥포장, 공공시설물(사인, 벤치, 화장실), 체육시설물로 한정하였다. 연구결과는 다음과 같다. 전반적으로 Y색상계열이 우세하게 나타났으며, 유사한 색상 사용과 명도, 채도가 비슷한 수치를 보였다. 이는 Color Universal Design(CUD, CUD 권장색 세트 가이드북, 2013) 이론에 근거하여 분석한 결과, 노인의 시각특성을 고려하지 않았다는 것을 시사하며 부산시에 위치한 근린공원은 시각특성을 배려한 환경색채가 미흡한 것으로 나타났다. 또한 본 연구는 노인의 색채 지각 및 인지 특성을 반영한 사회 환경 색채에 적용할 수 있는 기초연구로서 활동될 수 있을 것이다.

• 생명과학회지
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• 제8권2호
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• pp.216-225
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• 1998

Metal ion-induced and it’s regulatory genes were screened in virulent salmonella typhimurium UK1 and tested cross-regulation with various stresses. Using the techniqud of P22-MudJ(Km, lacZ)-directed lacZ operon fusion, LF40 cuiA::MudJ and Lf153 cuiD::MudJ which were induced by copper were selected. cuia and cuiD were determined anaerobic coper inducible and copper tolerance response gene, respectively. Also cuiA and cuiD locus were determined at 81 and 8min, respectively, on salmonella Genetic Map. The two regulators were identified as cuaR, and cudR, which controls cuiA and cuiD, respectively. cuaR, and cudR appeared as negative regulators because the expression of cuiA-lac-Z and cuiD-lacZ were increased. Copper adapted UK1 showed high resistance to H$_{2}$O$_{2}$, but cuiD did not. The product of the cudR locus was responsible for decreasing the tolerance to copper and H$_{2}$O$_{2}$. Furthemore cuiA and cuiD locus were found to be part of a regulon under the control of a trans-acting regulators, rpoS, oxyR and relA. Therefore, the results suggest CTR participate with oxidative stress on Salmonella.

• 동아시아식생활학회지
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• 제10권1호
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• pp.1-20
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• 2000

The purpose of this study was to survey the various kinds of cooked beef products focusing on "chim" (a steamed beef recipes) through historical literatures written from 1945 to 1997 in Korea. " Chim" was recorded 96 times in the references and could be classified into 3 groups based on major ingredients suchas the cud pouch, liver , spine , tongue, fleshes, beef, rib and tail, an could be classified into 14 groups based on minor ingredients such as vegetables fried beef in egg batter. tomatoes, callion and rice cake. Among the seventeen cooked recipe of " chim", "kalbi chim(rib) " was recorded most frequently and "satae chim(shank)" was the next. Though "yang chim(the cud pouch), salkogi chim(fleshes), sokalbi chim(rib) and sokori chim (tail) " has been sued until present day, salkogi chim subdivided into satae chim, udun chim, nubianisam chim, sosim chim in the middle twenty centuries. Ribs was most popular ingredient among the major ingredients such as the cud pouch, liver, spine, tongue, tail, fleshes. Decorating ingredients such as sukgi mushroom, minarichodae, pyoko mushroom, gingkonut also come into use subingredients or decorating ingredient in the 1990.nto use subingredients or decorating ingredient in the 1990.

• Asian-Australasian Journal of Animal Sciences
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• 제27권11호
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• pp.1584-1592
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• 2014

The objective was to evaluate the ingestive behavior of crossbred heifers finished on a Brachiaria brizantha cv. Marandu pasture receiving four levels of glycerin in their supplementation. Thirty-six crossbred heifers with average initial weight of $264.83{\pm}3.83kg$ and 20 months of age were distributed into a completely randomized design with four treatments and nine replications: control (0%), 4.82%, 10.12%, and 15.56% glycerin in the dry matter. The grazing time reduced linearly (p<0.05), whereas the time spent on activities like rumination, idleness, trough and total chewing time were quadratically affected (p<0.05). Bite rate and number of bites/day were quadratically influenced (p<0.05). The number of bites/swallowed cud and the number of bites/minute, however, increased linearly (p<0.05). Although the time spent on each cud and number of chews per cud were not affected (p>0.05).The number of rumination periods reduced linearly (p<0.05), whereas the number of grazing, idle and trough periods, and the times per grazing, idle, rumination and trough periods were quadratically affected (p<0.05). The feed and rumination efficiencies of the dry matter, non-fibrous carbohydrates, pasture dry matter and concentrate were quadratically affected (p>0.05) whereas the feed efficiency of neutral detergent fiber reduced linearly (p<0.05). Addition of glycerin in substitution of corn in supplements for animals managed on pastures does not influenced feed intake, but reduces the grazing time and increases the idle time. The supplementation also improves feed and rumination efficiencies.

• 대한수의사회지
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• 제30권4호
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• pp.207-213
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• 1994

For the establishment of goals of herd management in cows index of feeding's program, nutrional status, fertility, mastitis and foot lameness is mentioned, respectively. Status of he feeding's program is controlled by consistence of feces, cud chewing, ab

• 대한기계학회논문집B
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• 제24권9호
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• pp.1227-1238
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• 2000

This study examines the effects of the discretization schemes on numerical solutions of viscoelastic fluid flows. For this purpose, a temporally evolving mixing layer, a two-dimensional vortex pair interacting with a wall, and a turbulent channel flow are selected as the test cases. We adopt a fourth-order compact scheme (COM4) for polymeric stress derivatives in the momentum equations. For convective derivatives in the constitutive equations, the first-order upwind difference scheme (UD) and artificial diffusion scheme (AD), which are commonly used in the literature, show most stable and smooth solutions even for highly extensional flows. However, the stress fields are smeared too much and the flow fields are quite different from those obtained by higher-order upwind difference schemes for the same flow parameters. Among higher-order upwind difference schemes, a third-order compact upwind difference scheme (CUD3) shows most stable and accurate solutions. Therefore, a combination of CUD3 for the convective derivatives in the constitutive equations and COM4 for the polymeric stress derivatives in the momentum equations is recommended to be used for numerical simulation of highly extensional flows.

• 한국산업융합학회 논문집
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• 제8권4호
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• pp.221-226
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• 2005

This paper presents a hybrid method for recognizing the faces by using zero mean and principal component analysis. Zero mean is applied to reduce the 1st order statistics to data nonlinearities. PCA is also used to derive an orthonormal basis which directly leads to dimensionality reduction, and possibly to feature extraction of face image. The proposed method has been applied to the problems for recognizing the 20 face images(10 persons * 2 scenes) of 324*243 pixels from Yale face database. The 3 distances such as city-block, Euclidean, negative angle are used as measures when match the probe images to the nearest gallery images. The experimental results show that the proposed method has a superior recognition performances(speed, rate). The negative angle has been relatively achieved more an accurate similarity than city-block or Euclidean.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2005년도 춘계학술대회 논문집
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• pp.625-628
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• 2005

For precise micro-grooving and surface machining, ultrasonic cyclic elliptical cutting is proposed using two parallel piezoelectric actuators. The piezoelectric actuators are energized by sinusoidal voltages of varying phase which is essenstial to generating elliptical cutting. Experimental setup is composed of ultrasonic motor, single crystal diamond cutting tool, and precise motorized xyz stage. It is confirmed experimentally that the cutting performance, in terms of the cutting force, the burr formation, and the discontinuous chip formation is improved remarkably by applying ultrasonic elliptical vibration cutting.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2006년도 춘계학술대회 논문집
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• pp.191-192
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• 2006

In these days, various kinds of rapid prototyping processes are available, such as stereo-lithography apparatus(SLA), fused deposition modeling(FDM), selective laser sintering(SLS), 3 dimensional printing(3DP), and laminated object manufacturing(LOM). For detailed informations about mechanical properties of those parts, benchmark tests are carried out. SLS and EOS part has an advantage in compressive strength, SLA has in hardness, FDM part has in impact strength, and LOM part has an advantage in tensile strength and heat resistance. The change of building direction in layered manufacturing processes of FDM and LOM severely weakens the tensile and impact strength.

• 한국산업융합학회 논문집
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• 제7권1호
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• pp.41-46
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• 2004

This paper proposes a separation of mixed signals by using the robust independent component analysis(RICA) based on neural networks. RICA is based on the temporal correlations and the second order statistics of signal. This method e is applied for improving the analysis rate and speed in which the sources have very small or zero kurtosis. The proposed method has been applied for separating the 10 mixed finger prints of $256{\times}256$-pixel and the 4 mixed images of $512{\times}512$-pixel, respectively. The simulation results show that RICA has the separating rate and speed better than those using the conventional FP algorithm based on Newton method.