• 제목/요약/키워드: Factorial experiment

검색결과 511건 처리시간 0.023초

EFFLUENT FROM RUSITEC INOCULATED WITH RUMEN LIQUOR OR COW FAECES AS SOURCES OF MICRO-ORGANISMS FOR IN VITRO DIGESTION OF FORAGES

  • Akhter, S.;Owen, E.;Hossain, M.M.
    • Asian-Australasian Journal of Animal Sciences
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    • 제9권4호
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    • pp.375-379
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    • 1996
  • The experiment investigated the possibility of using effluent from RUSITEC (rumen simulation technique) inoculated with rumen liquor or cow faeces as sources of micro-organisms for in vitro digestion of forages. Nine forages ${\times}3$ sources of inoculum were used in a factorial arrangement of treatments. Rumen liquor was collected from fistulated sheep and faeces was collected from cows. The RUSITEC apparatus consisted of 4 vessels, 2 vessels were charged with faecal liquor and 2 with rumen liquor. On the 8th day of the experiment RUSITEC effluent were collected to use in in vitro studies. In vitro OMD (g/kg) values using three sources of inoculum (fresh rumen liquor, RUSITEC effluent from rumen liquor or cow faeces) were statistically significant (p < 0.001). The regression relationships between OMD using fresh rumen liquor and RUSITEC effluent were highly significant ($R^2>0.90$). The results suggest that RUSITEC effluent either from rumen liquor or cow faeces can be used as a source of micro-organisms for in vitro digestion of forages.

지리산 국립공원 아고산대 황폐나지의 식생복원공법 개발 (Rehabilitation Measures for Disturbed Subalpine Meadows in Chirisan National Park, Republic of Korea)

  • 오구균;우보명;김동완
    • 한국환경생태학회지
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    • 제11권1호
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    • pp.37-45
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    • 1997
  • 지리산국립공원 노고단 지역에 분포하는 아고산대 초원지역은 급증한 이용객들에 의해 훼손되고 있다. 교란된 아고산대 초원지역의 복원공법을 개발하기 위한 기초연구로서, 이 지역에 시비처리, 식생도입처리, 멀칭처리를 각각 2수준으로 한 2*2*2 요인 실험을 표토가 유실된 10% 경사지와 표토가 잔존하는 40% 경사지에 실시하였다. 그 결과, 부지조건에 관계없이 야생풀포기심기가 파종보다 식생활착에 있어 더 효율적이었고 시비처리는 출현개체수와 피복도 증가에 통계적 유의성을 나타냈다. 반면 식생활착에 미치는 멀칭재료간 효과는 유의성이 없었다. 한편 척박지의 선구수종으로 추정되는 개쑥부쟁이는 직접파종에도 높은 활착율을 보였다.

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흡입성능 향상을 위한 복합가공기용 복합헤드 설계 (Design of Composite Head for Compound Processing Machine on the Improved Suction Performance)

  • 김성;최영석;김효영;김태곤;이석우;김진혁
    • 한국수소및신에너지학회논문집
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    • 제31권1호
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    • pp.144-150
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    • 2020
  • This paper presents a numerical study on the design of composite head geometry used for compound processing machine. In order to achieve an optimum composite head geometry and to explain the interactions between the different geometric configurations, three dimensional computational fluid dynamics and design of experiment methods have been applied. From the 2k factorial design results, the most important design variable was found and the performance of the composite head was improved compared to the reference model.

화장품 광고이미지와 자아이미지의 일치성이 소비자 태도에 미치는 영향 (The Effects of the Congruence between Cosmetic Advertising Image and Self-Image on Consumer Attitudes)

  • 최정선;전중옥
    • 대한가정학회지
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    • 제46권7호
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    • pp.35-45
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    • 2008
  • For the highly involved and emotional product, such as cosmetic product, the consumer focuses on the information about the symbolic meaning of a product. As a continuum, cosmetic advertising frequently requires a celebrity and/or cue since it provides identification between customer and cosmetic. Although many studies have examined the effectiveness of the congruence between brand image and self-image, there are little research regarding the congruence between advertising image and self image. The objective of this study is to examine the attitudinal effectiveness of the congruence between cosmetic advertising image and self-image. For the experiment, 2(ad type: rational vs emotional) factorial designs were performed. A total of 240 undergraduate female students participated in the experiment. The results of the study are as follows. First, the congruence had a significantly positive influence on advertising attitude, but not on brand attitude. Second, the type of cosmetic advertising caused differences in attitudinal persuasiveness affected by the congruence.

뷰티브랜드 확장상황에서 희석효과 -전형성에 기초한 브랜드 확장 시 모브랜드의 지식이 전이 되었는가?- (The Effect of Dilution on Beauty Brand Extension Situation -Was Parent Brand's Knowledge Transferred to Brand Extension by Typicality?-)

  • 최정선;전중옥
    • 한국의류학회지
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    • 제35권1호
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    • pp.63-76
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    • 2011
  • The potential for brand dilution occurs when new brands merge with an identical image of a parent brand. Despite the significant attention regarding the effects of dilution on brand extension, there is limited research on brand dilution in the beauty industry. This study analyzes the effect of the typicality of extensional type on brand attitude or purchase intention for potential dilution toward beauty brand extension. In addition, we examine the moderating effect of knowledge transfer when customers evaluate the typicality of the extensional type for potential dilution toward beauty brand extensions. For the experiment, 4 description type factorial designs were performed. A total of 219 students participated in the experiment who had experience of visiting a beauty salon. The results are as follows. First, there are significant independent and interaction effects between the typicality and extensional type that reveals differential influences on the attitude or purchase intentions toward extended beauty brands. Second, the knowledge of the parent brand is transferred to extended brands. Third, there is a significant moderating effect of knowledge transfer, as customers evaluate the typicality of the extensional type for the potential dilution toward beauty brand extension. This study provides some theoretical and practical perspectives with some limitations.

뷰티브랜드 확장 시 확장유형의 유사성과 브랜드적합성이 브랜드태도에 미치는 영향 (The Effects of Similarity and Brand Fit of Extension Type on Beauty Brand Attitude)

  • 최정선;전중옥
    • 한국의류학회지
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    • 제33권8호
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    • pp.1293-1305
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    • 2009
  • Despite the attention regarding the effects of brand extension, there is limited research focused on brand extension in the beauty industry. This study discusses whether the similarity of extensional types and brand fit has any effect on the brand attitude toward beauty brand extension. This study examines the changes in the brand attitude and finds the effect of the similarity of extensional types and brand fits on brand attitude toward beauty brand extension. In the experiment, 4 description type factorial designs were performed. A total of 114 females participated in the experiment that had an experience of visiting a beauty salon. The results are as follows. First, the similarity of an extensional product-type has a positive effect on attitude toward parent beauty brand, while the similarity of extensional service-type does not. Second, there are significant independent and interaction effects between similarity and brand fit, which reveal differential influences on attitudes toward an extended beauty brand. Attitudes toward parent and extended beauty brands were affected by the similarity of extensional types and brand fit.

개더스커트 형상프로포션의 3차원적 해석 (Three-Dimensional Analysis of the Shapes of Gathered Skirts)

  • 이명희;정희경
    • 한국의류학회지
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    • 제30권11호
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    • pp.1598-1607
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    • 2006
  • The purpose of this study was to analyze the proportion of gathered skirts using a three-dimensional measurement system. And in this experiment, we have attempted to accumulate three-dimensional data of wearing model and find out adequate methods for analyzing shape of clothes. The experimental design consists of two factorial designs. We established three different kinds of fabrics, ratio of gathers. The measurement tool for three-dimensional model was whole body 3D scanner(Exima-WBS2H). Analysis program used in experiment is RapidForm 2004 PP1 and Pattern Design 2000. Data analysis utilizes SPSS WIN 10.0 Package. As the results show, there were different effect of gather and proportion of shapes among the measurements of width, thickness and areas made by different lines of vision in cross-sectional silhouette. And there were difference shapes of section area at each part of gathered skirts between vertical-outline silhouette and vortical-plane silhouette made by gathering conditions. And also the cross-sectional silhouettes and vertical silhouettes were related to shape of clothes.

Effects of Oxidative Stress on Growth Performance, Nutrient Digestibilities and Activities of Antioxidative Enzymes of Weanling Pigs

  • Yuan, Shi-bin;Chen, Dai-wen;Zhang, Ke-ying;Yu, Bing
    • Asian-Australasian Journal of Animal Sciences
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    • 제20권10호
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    • pp.1600-1605
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    • 2007
  • This study was undertaken to investigate the effects of oxidative stress on growth performance, nutrient digestibilities and activities of antioxidant enzymes of weanling pigs. In the experiment, 24 male $Landrance{\times}Yorkshire $weanling pigs were allotted to three groups of 8 animals each. Pigs were fed individually. According to a single factorial arrangement, pigs received diets with 5% of either fresh (group 1 and group 3) or oxidized fish oil (peroxide value was 786.50 meq $O_2/kg$ before inclusion in the diet, group 2). At the beginning of the experiment, pigs in group 3 received an intraperitoneal injection of diquat at 12 mg/kg of body weight. The trial lasted for 26 d. A metabolism test was carried out during the last 4 days of the second week. The results showed that feeding diets containing oxidized fish oil or injection with diquat depressed the growth performance and nutrient digestibilities of weanling pigs, decreased activities of antioxidant enzymes and increased concentration of malondialdehyde in plasma and liver. Intraperitoneal injection of diquat would induce more serious oxidative stress than oral intake of oxidized fish oil in the diet. In conclusion, administration of oxidized fish oil or diquat could induce oxidative stress in weanling pigs, and oxidative stress could depress growth performance and impact anti-oxidative ability of young pigs.

Characterization of Low-temperature SU-8 Negative Photoresist Processing for MEMS Applications

  • May Gary S.;Han, Seung-Soo;Hong, Sang-Jeen
    • Transactions on Electrical and Electronic Materials
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    • 제6권4호
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    • pp.135-139
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    • 2005
  • In this paper, negative SU-8 photoresist processed at low temperature is characterized in terms of delamination. Based on a $3^3$ factorial designed experiment, 27 samples are fabricated, and the degree of delamination is measured for each. In addition, nine samples are fabricated for the purpose of verification. Employing the. neural network modeling technique, a process model is established, and response surfaces are generated to investigate degree of delamination associated with three process parameters: post exposure bake (PEB) temperature, PEB time, and exposure energy. From the response surfaces generated, two significant parameters associated with delamination are identified, and their effects on delamination are analyzed. Higher PEB temperature at a fixed PEB time results in a greater degree of delamination. In addition, a higher dose of exposure energy lowers the temperature at which the delamination begins and also results in a larger degree of delamination. These results identify acceptable ranges of the three process variables to avoid delamination of SU-8 film, which in turn might lead to potential defects in MEMS device fabrication.

INTERACTIVE INFLUENCE OF DIETARY PROTEIN AND LIPID IN LACTATION

  • Park, C.S.;Choi, Y.J.;Fisher, G.R.;Erickson, G.M.
    • Asian-Australasian Journal of Animal Sciences
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    • 제1권1호
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    • pp.7-12
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    • 1988
  • Twenty cows, by order of calving, were used in a completely randomized $2{\times}2$ factorial experiment. Variables were tow protein levels (14 and 18% crude protein) and concentration of fat (2 and 6% ether extract) in diets. Fat addition, via unprocessed whole sunflower seed, insured forage utilization in diets to meet energy requirement of cows. A total of 36 wks of lactation was subdivided into three 12-wk stages of lactation. Net energy lactation was set at 1.72, 1.57 and 1.42 Mcal/kg for each stage. Higher protein diets improved the efficiency of energy (FCM/net energy intake) which was particularly noted for diets containing high fat (85.7%). However, diets with low protein-high fat resulted in the lowest efficiency (67.7%). No difference in milk yield and butterfat was due to different levels and combinations of protein and lipid in diets. High protein diets depressed blood cholesterol and glucose compared to low-protein counterparts. Relative decline in milk production was slower for lower fat diets than for higher fat groups, especially mid to later stage of lactation. Results of this experiment tend to support our thesis on the synergistic effect of dietary protein and energy (lipid) upon efficiency of lactation.