In this contribution, a configurational mechanics framework is elaborated to assess the applicability of atomistic forces in fracture crystalline lattices. To end, an analytical interatomic potential reformulated terms material positions occupied by atoms participating two- and three-body interactions. It demonstrated that such satisfies requirements invariances i.e., translational, rotational ...

OBJECTIVE This study aimed to investigate the effects of enrichment resources (a perch, dustbath, and nest) layout in furnished laying-hen cages (FC) on exterior quality of eggs. METHODS One hundred and sixty-eight (168) Hy-Line Brown laying hens at 16 weeks of age were randomly distributed to four treatments: small furnished cages (SFC), medium furnished cages type I (MFC-I), medium furnishe...

Fatigue pre-cracked four-point bend specimens of a rolled AZ31 Mg alloy are loaded asymmetrically and their mixed-mode (I II) fracture behaviour is contrasted with pre-notched samples. In-situ mapping displacement strain fields performed through optical imaging coupled digital image correlation analysis. The surface morphology the deformed microstructure also studied. toughness Jc for both type...

http://dx.doi.org/10.1016/j.anbehav.2016.01.011 0003-3472/© 2016 The Association for the Study of A Tool-assisted percussion is an ancient feature of human technology. Tool-assisted percussion is not uniquely human; chimpanzees, Pan troglodytes, longtailed macaques, Macaca fascicularis aurea, and capuchin monkeys (Sapajus spp.) use stone tools to crack open encased foods. The knowledge of how t...

Grain feeding often causes a decrease in ruminal pH, and experiments were conducted to define the role of pH in regulating the acetate to propionate ratio and production of CH4. Cows that were fed 90% concentrate had lower ruminal pH values (6.22 vs. 6.86), higher VFA concentrations (85 vs. 68 mM), and lower acetate to propionate ratios (2.24 vs. 4.12) than did cows that were fed forage only. W...

Fatigue damage caused by cyclic loading is a major concern in engineering applications. Cracks propagated can lead to catastrophic failure, which have severe consequences safety-critical systems. The main objective of the paper investigate residual strength cracked plate considering fatigue crack propagation under loading. In this study, model proposed study difference compressive and tensile w...