Energy growth rate in smoothly oscillating billiards

2011 ◽  
Vol 83 (4) ◽  
Author(s):  
Kushal Shah
Keyword(s):  
Growth Rate ◽  
Energy Growth

scholarly journals Miles Theory Revisited with Constant Vorticity in Water of Infinite Depth

2020 ◽  
Vol 8 (8) ◽  
pp. 623
Author(s):  
Christian Kharif ◽  
Malek Abid
Keyword(s):  
Growth Rate ◽  
Wave Energy ◽  
Wind Wave ◽  
Wind Waves ◽  
Infinite Depth ◽  
Energy Growth ◽  
Constant Vorticity ◽  
Generation Of Wind Waves ◽  
Amplitude Growth

The generation of wind waves at the surface of a pre-existing underlying vertically sheared water flow of constant vorticity is considered. Emphasis is put on the role of the vorticity in water on wind-wave generation. The amplitude growth rate increases with the vorticity except for quite old waves. A limit to the wave energy growth is found in the case of negative vorticity, corresponding to the vanishing of the growth rate.

scholarly journals Numerical Research on Energy Evolution in Granite under Different Confining Pressures Using Otsu’s Digital Image Processing and PFC2D

Symmetry ◽  
2019 ◽  
Vol 11 (2) ◽  
pp. 131 ◽  
Author(s):  
Yubao Zhang ◽  
Tongbin Zhao ◽  
Yanchun Yin ◽  
Yunliang Tan ◽  
Yue Qiu
Keyword(s):  
Image Processing ◽  
Growth Rate ◽  
Digital Image Processing ◽  
Digital Image ◽  
Strain Energy ◽  
Confining Pressure ◽  
Energy Evolution ◽  
Energy Accumulation ◽  
Energy Growth ◽  
Confining Pressures

Research on energy accumulation and releasing in the rock plays a key role on revealing its failure mechanism. This paper establishes a microscopic structure model of granite using Otsu digital image processing (DIP) technology and particle flow code software (PFC2D). A series of numerical compression tests under different confining pressures were conducted to investigate the macro and micro characteristics of energy evolution in granite. The results showed that the energy evolution of granite is divided into three stages: stable accumulation, slow dissipation, and rapid release. With increasing confining pressure, the strain energy accumulation ratio decreased exponentially and the peak value of strain energy increased linearly. It was found that the energy accumulation speed in the pre-peak stage increased as a linear function, while the energy release speed in the post-peak stage decreased as an exponential function. In addition, the feldspar is the main microstructure which played a major part in accumulating energy in granite. However, the unit mineral energy of mica particles was bigger than that of feldspar and quartz. When subjected to increasing confining pressure, the feldspar’s total energy growth rate was fastest. Meanwhile, the mica’s unit energy growth rate was fastest.

scholarly journals Maximum Energy Growth Rate in Dilute Quantum Gases

2021 ◽  
Vol 126 (24) ◽  
Author(s):  
Ran Qi ◽  
Zheyu Shi ◽  
Hui Zhai
Keyword(s):  
Growth Rate ◽  
Maximum Energy ◽  
Quantum Gases ◽  
Energy Growth

scholarly journals Subsitusi Protein Hewani dengan Tepung Kedelai dan Khamir Laut untuk Pakan Patin (Pangasius sp.) dan Kerapu Tikus (Cromileptes altivelis)

2006 ◽  
Vol 8 (2) ◽  
pp. 169
Author(s):  
Mivida Febriani
Keyword(s):  
Growth Rate ◽  
Soybean Meal ◽  
Protein Digestibility ◽  
Conversion Ratio ◽  
Animal Protein ◽  
Feed Conversion ◽  
Marine Yeast ◽  
Energy Growth ◽  
Randomized Design ◽  
Completely Randomized Design

The objective of this research was to know protein and energy digestibilities of marine yeast, as substitution for soybean meal in the ration of patin (Pangasius sp.) and humpback grouper (Cromileptes altivelis).This experiment used completely randomized design with four treatments in triplicates. The treatments were R1 (100% animal protein); R2 (90% animal protein+10% soybean meal); R3 (90% animal protein+5% soybean meal+5% marine yeast); and R4 (90% animal protein+10% marine yeast). The digestibility of protein in ration of patin was significantly different (P<0.01). Marine yeast in patin ration also improved the growth rate (P<0.05). Substitution soybean meal with marine yeast in ration of patin was not influence the energy digestibility and feed conversion ratio (FCR) (P>0.05). Rations with 5 and 10% of marine yeast improved energy and protein digestibility, growth rate and decreased the FCR. Digestibilities of protein and energy, growth rate and FCR in humpback grouper were significantly different (P<0.01) among treatments. Marine yeast in ration of humpback grouper increased digestibilities of protein and energy. However, substitution of animal protein with soybean meal and marine yeast decreased growth rate and improve FRC in humpback grouper.

THE INFLUENCE OF FEED ENERGY LEVEL ON GROWTH AND CARCASS TRAITS IN BULLS OF TWO BREED TYPES

1984 ◽  
Vol 64 (2) ◽  
pp. 323-332 ◽  
Author(s):  
M. A. PRICE ◽  
SARAH BUTSON ◽  
M. MAKARECHIAN
Keyword(s):  
Growth Rate ◽  
Energy Level ◽  
Key Words ◽  
Feed Efficiency ◽  
High Energy ◽  
The Other ◽  
Carcass Weight ◽  
Energy Growth ◽  
Fat Thickness ◽  
Similar Growth

A serial slaughter experiment is described using 48 yearling bulls: 24 Hereford crossbred (HX) and 24 Beef synthetic (SY). Twelve bulls of each breed type were fed a high-energy, mainly grain diet (Hi) and the other 12 a pelleted alfalfa diet (Lo). The two breed types showed similar growth rate and feed efficiency, yet at constant carcass weight (375.2 kg) the HX were fatter (44.2 vs. 37.2 kg) and had less muscle (110.3 vs. 116.8 kg) in the dissected side than the SY. The Hi diet resulted in greater growth rate (1.46 vs. 1.06 kg/day) and feed efficiency (9.5 vs. 12.7 kg/kg), in both breed types, than the Lo diet and resulted in a greater rate of fat thickness accumulation (P = 0.001). At constant carcass weight (375.2 kg), the Hi diet gave more fat (46.9 vs. 34.5 kg) and less msucle (109.0 vs. 118.0 kg) and bone (24.6 vs. 28.0 kg) in the dissected side than the Lo diet in both breed types. It is concluded that biological type and diet can be manipulated independently to produce optimum carcass grades at various carcass weights. Key words: Fatness, feed energy, growth, carcass, bulls, beef production

scholarly journals Total Energy Growth Rate of Rolling Bearing due to Faults during Run-Up

2013 ◽  
Vol 5 ◽  
pp. 502051 ◽  
Author(s):  
Zhongqiu Wang ◽  
Zhencai Zhu ◽  
Wei Li ◽  
Guoan Chen ◽  
Gongbo Zhou
Keyword(s):  
Growth Rate ◽  
Total Energy ◽  
Rolling Bearing ◽  
Energy Growth ◽  
Run Up

The threshold energy for atom displacement in fcc metals

1990 ◽  
Vol 48 (4) ◽  
pp. 530-531
Author(s):  
Wilfried Sigle ◽  
Matthias Hohenstein ◽  
Alfred Seeger
Keyword(s):  
Growth Rate ◽  
Elevated Temperatures ◽  
Threshold Energy ◽  
Dislocation Loops ◽  
Absolute Minimum ◽  
Voltage Electron ◽  
Atom Displacement ◽  
Electron Microscopes ◽  
Fcc Metal

Prolonged electron irradiation of metals at elevated temperatures usually leads to the formation of large interstitial-type dislocation loops. The growth rate of the loops is proportional to the total cross-section for atom displacement,which is implicitly connected with the threshold energy for atom displacement, Ed . Thus, by measuring the growth rate as a function of the electron energy and the orientation of the specimen with respect to the electron beam, the anisotropy of Ed can be determined rather precisely. We have performed such experiments in situ in high-voltage electron microscopes on Ag and Au at 473K as a function of the orientation and on Au as a function of temperature at several fixed orientations.Whereas in Ag minima of Ed are found close to <100>,<110>, and <210> (13-18eV), (Fig.1) atom displacement in Au requires least energy along <100>(15-19eV) (Fig.2). Au is thus the first fcc metal in which the absolute minimum of the threshold energy has been established not to lie in or close to the <110> direction.

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