• Title/Summary/Keyword: Order of growth

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Effect of Beef Growth Type on Cooking Loss, Tenderness, and Chemical Composition of Pasture- or Feedlot-developed Steers

  • Brown, A.H.;Camfield, P.K.;Rowe, C.W.;Rakes, L.Y.;Pohlman, F.W.;Johnson, Z.B.;Tabler, G.T.;Sandelin, B.A.
    • Asian-Australasian Journal of Animal Sciences
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    • v.20 no.11
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    • pp.1746-1753
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    • 2007
  • Steers (n = 335) of known genetic background from four fundamentally different growth types were subjected to two production systems to study differences in cooking loss (CL), tenderness, and chemical composition. Growth types were animals with genetic potential for large mature weight-late maturing (LL), intermediate mature weight-late maturing (IL), intermediate mature weight -early maturing (IE), and small mature weight-early maturing (SE). Each year, in a nine-year study, calves of each growth type were weaned and five steers of each growth type were developed on pasture or feedlot and harvested at approximately 20 and 14 mo of age, respectively. Data collected were CL and Warner-Bratzler shear force (WBS) for the Longissimus dorsi (LM), Psoas major (PS), and Quadriceps femoris (QF) muscles. Chemical composition was also determined from the right fore- and hindquarter. Data were analyzed using least squares analysis of variance for unequal subclass numbers. The beef growth $type{\times}production$ system interaction was significant for CL and WBS of the LM and ash in the lean trim of the forequarter. Growth types of LL and IL had greater (p<0.05) mean percentage CL in the PS and QF muscles than did IE and SE steers. Growth type LL had the highest (p<0.05) mean for both moisture and protein in the fore- and hindquarters; while SE had the lowest numerical mean value for moisture and protein in the fore- and hindquarters. Shear force of the PS did not differ (p>0.05) among steers of the four growth types. Increasing challenges to the cattle feeding industry may dictate that pasture development play a larger role in future production regimes. Producers should strive to match genetic growth type with available resources in order to remain viable and continue producing a quality product.

Hot-filament 플라즈마화학기상증착법 이용하여 DLC층 위에 탄소나노튜브의 선택적 배열

  • Lee, Su-In;Hong, Byeong-Yu
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2009.11a
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    • pp.239-239
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    • 2009
  • As we note the electric properties of carbon nanotube, we need to generate carbon nanotubes vertically. Generally, metal catalysts are used to synthesis carbon nanotubes. But through using DLC, dense patricles could be gotten easily. Compare to the case of using metal catalysts, the case of using DLC can conduct vertical grwoth of CNTs easily. In this paper, we changed growth temperature (550, 650, $7500^{\circ}C$) and growth time (3, 6, 9 min) in order to confirm synthesize vertical growth of CNTs on substrates.

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Growth studies of chromium thin films using real-time spectroscopic ellipsometry (실시간 분광 엘립소미트리를 이용한 크롬 박막의 성장연구)

  • 이용달;정지용;방경윤;오혜근;안일신
    • Journal of the Korean Vacuum Society
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    • v.8 no.3B
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    • pp.327-332
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    • 1999
  • High speed real-time spectroscopic ellipsometry was employed in order to characterize the growth of chromium thin film. This instrument can collect 512 points of {$\Delta$(hv), $\Psi$(hv)} spectra from 1.3 to 4.5 eV with acquisition and repetition rates of 20 msec or less. When this instrument was integrated into the chromium thin film growth, we could obtain not only the information on film properties but also the details of the processes. We deduced the growth rates and the evolution of the optical properties of chromium thin films under several preparation conditions. We also demonstrated the contamination process of chromium thin films caused by air exposure.

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Effects of Temperature and Salinity on Early Development, Survival and Growth Rate in Seabass, Lateolabrax Japonicus (농어, Lateolabrax Japonicus의 초기 발달, 성장 및 생존율에 미치는 수온과 염분의 영향)

  • 한형균;강덕영;허성범;김성원
    • Journal of Aquaculture
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    • v.14 no.1
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    • pp.17-27
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    • 2001
  • Effects of temperature (10, 12, 14, 16, 18 and 2$0^{\circ}C$) and salinity (22.0, 24.5, 27.0, 29.5, 32.0 and 34.5 ppt) were studied on incubation period, hatching success, survival and growth of alevin and juvenile seabass, L. japonicus. Embryonic development was accelerated with increasing temperature but it was not influenced by salinity. Hatching success was the highest at 14$^{\circ}C$ and 34.5 ppt. Higher temperature also accelerated the development of mouth opening, absorption of yolk and oil globules, and alevin growth. Survival of the 5-day old Juvenile was accelerated in the following order : 14<16<18<20<12$^{\circ}C$. Rearing experiment of the juvenile for 30-day indicated the faster growth at 13, 20 and 27 ppt than at 34 ppt.

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Development of Rant Resources for the Control of Environmental Pollution - $CO_2$ Absorption and Growth Response to $CO_2$ in Kenaf(Hibiscus cannabinus L.) - (환경정화 자원식물 개발 - 양마의 $CO_2$ 흡수 및 생육반응 -)

  • Yoon, Seong-Tak
    • Korean Journal of Organic Agriculture
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    • v.11 no.4
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    • pp.103-115
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    • 2003
  • In order to investigate the possibility for use to control environmental pollution, Kenaf(Hibiscus cannabinus L.) was used to obtain information of their growth and $CO_2$ response under different temperatures and $CO_2$ concentration. The highest percentage of germination and aboveground dry mass of Kenaf were found at 30$^{\circ}C$ and 35$^{\circ}C$ by 89.0% and 3.2g, respectively under different temperatures. The amount of $CO_2$ absorption and aboveground dry mass production of Kenaf were higher than those of maize during the whole growing period and the last sampling of aboveground dry mass of Kenaf and maize were 252.9g and 200.8g, respectively. The highest plant height was found at 400ppm by 131.0cm and the next was in the order of 600ppm by 1293cm, and 800ppm by 108.8cm. Leaf area was higher in the order of 400ppm > 600ppm > 800ppm, whereas leaf dry mass was in the order of 800ppm > 600ppm > 400ppm under different $CO_2$ concentration, showing that leaf became thicker as $CO_2$ concentration was increased. Days from seeding to flowering became shorter by 13 days in 35/25$^{\circ}C$ compared with 25/15$^{\circ}C$ between two temperature regimes and they also became shorter as $CO_2$ concentration was increased. Aboveground dry mass was higher in 35/25$^{\circ}C$ than that of 25/15$^{\circ}C$ between two temperature regimes. while it was increased in the order of 800ppm > 600ppm > 400ppm as CO2 concentration was increased. Temporal changes of leaf dry mass during growth period showed no difference between $CO_2$ concentration in 25/15$^{\circ}C$ , but the highest of it was found at 800ppm in 35/25$^{\circ}C$. The highest temporaI increase of root dry mass was found at 800ppm in 25/15$^{\circ}C$, but 35/25$^{\circ}C$ showed no difference between different $CO_2$ concentration.

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A Study on the Analysis of Fatigue-fractured Surface of Aluminium for Aircraft (항공기용 Al의 피로파면 분석에 관한 연구)

  • Joo, Won-Kyung;Kwun, Yong-Gu;Bae, Sung-In;Song, Jung-Il
    • Proceedings of the KSME Conference
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    • 2007.05a
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    • pp.274-278
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    • 2007
  • The purpose of this study is to analyze the important loads related with crack-growth in aircraft. Al Alloys mainly used in aircraft are Al2024 and Al7075 in Duralumin. In random fatigue loading, it has been understood crack-growth characteristic using fractured surface photograph by SEM. In order to obtained CTOD, we measured a crack size in wing frame part. As a result of fatigue experiment that accumulating plenty of fatigue loadings, we find more cracks than that produces in the same fatigue loading. The important loads relating to crack-growth was found in the largest strain cycle. Applying strain block in fatigue experiment, it is actually loading in connection of aircraft. In conclusion, These results can be used for preventing an accident owing fatigue-fracture in aircraft.

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Effect of Plant growth regulators on flowering in Camellia species. (식물생장조절제 처리가 동백의 화성에 미치는 영향)

  • SeonHaLee
    • Korean Journal of Plant Resources
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    • v.1 no.1
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    • pp.48-52
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    • 1988
  • In order to examine the effect of growth regulators on flower bud formation and anthesis, various growth regulators were applied during the initiation and growthstages of flower bud development in Camellia. The inhibitor CCC increased flowerbud formation. But gibberellin had a strong suppressing effect of flower budformation while it stimulated elongatien of shoots. On the other hand, gibberellinpromoted the growth of flower buds and hastened anthesis, while other growthregulators had no effect.

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Effects of the special media on the mycelium growth in Agaricus campestris (몇가지 식물이 Agaricus campestris 균사의 생장에 미치는 영향(예보))

  • 이덕봉
    • Journal of Plant Biology
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    • v.12 no.2
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    • pp.1-6
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    • 1969
  • Effects of the special media on the mycelium growth in Agaricus campestris were studied. The results might be summarized as follows: 1. The mycelium growth fo Agaricus campestris were scarecely stimulated on the Peptone basal medium which was added 0.5gr. of Peptone and Dextrose basal medium which was added 1.5gr. of dextrose during the culture for 144 hours. 2. The mycelium of Agaricus campestris on the media which was added the several kinds of vegetable extracts showed a considerable growth for 144 hours. The order is as follows; Carrot-basal medium(4ml./100ml.)>Tomato-basal medium(2ml./100ml.)>Spinach-basal medium(3ml./100ml.). However, the spinach-basal medium among these three media were no significant difference.

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Analysis of latent growth model using repeated measures ANOVA in the data from KYPS (청소년패널자료 분석에서의 반복측정분산분석을 활용한 잠재성장모형)

  • Lee, Hwa-Jung;Kang, Suk-Bok
    • Journal of the Korean Data and Information Science Society
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    • v.24 no.6
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    • pp.1409-1419
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    • 2013
  • We analyzed the data from KYPS using the latent growth model which has been widely studied as an analysis method of longitudinal data. In this study, we applied repeated measures ANOVA to unconditional model in order for faster decision of the unconditional model of the latent growth model. Also, we compared the six-type models, the quadratic model and the model of which repeated measures ANOVA is applied.

Improving Adherence to Growth Hormone (GH) Therapy via EasypodTM May Help Maximize the Treatment Outcome

  • Choi, Hae-Jeong
    • Journal of mucopolysaccharidosis and rare diseases
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    • v.1 no.1
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    • pp.19-22
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    • 2015
  • In Growth Hormone (GH) therapy, suboptimal adherence is a common problem, reaching up to 82%, and there is a need for interventions to improve adherence and to maximize patients' growth potential eventually. Current studies have demonstrated the association between the rate of non-adherence and reduced height velocity. In order to maximize patients' potential to grow, an auto-injecting/recording device, such as $easypod^{TM}$, may help improve adherence and optimize the treatment effects of GH therapy. The use of $easypod^{TM}$ has contributed to high adherence rates: 87.5% and 93% in Bozzola et al.'s study and the $Easypod^{TM}$ Connect Observational study (ECOS), respectively. Improvement of adherence by $easypod^{TM}$ may lead to higher growth rates of patients receiving GH therapy. Additionally, patients' positive acceptability of $easypod^{TM}$ suggests $easypod^{TM}$ is a preferred device by patients for better adherence.