BACKGROUND Ingestion of sand can cause colic, diarrhoea and weight loss in horses, but these signs are unspecific and can have many other causes. The amount of sand that induces disease may vary between individuals. To avoid over-diagnosing, it is important to determine the amount of sand that can be found in horses without clinical signs of gastrointestinal disease. The aim of this study was t...

This paper describes a centrifuge study undertaken to investigate how sand gradation affects the system-level performance of embankments subjected strong shaking. Current analysis and design practices are primarily based on knowledge from case history records liquefaction, with majority those sites consisting clean, poorly graded sands. The narrow range characteristics represented in database p...

   The main purpose of the present investigation is to analyze more comprehensively the size-dependent nonlinear free vibration response of multilayer functionally graded graphene platelet-reinforced composite (GPLRC) nanobeams. As a consequence, both of the hardening stiffness and softening stiffness of size effect are taken into consideration by implementation of the nonlocal str...

Isotropic compression tests were conducted on a series of gap-graded mixtures carbonate sand (CS) from the South China Sea and fine crushed quartz silt. The purpose these is to expl...

Many sedimentary rocks are formed by migration of sand ripples. Thin layers of coarse and fine sand are present in these rocks, and understanding how layers in sandstone are created has been a longstanding question. Here, we propose a mechanism for the origin of the most common layered sedimentary structures such as inverse graded climbing ripple lamination and cross-stratification patterns. Th...

this paper presents a model for prediction of the mechanical behavior of sand-gravel mixtures using generalized plasticity and critical state concepts. proposed model is based on the difference between critical state lines of sand and sand-gravel mixture in e-lnp' plane. a generalized plasticity model is considered as the base model for sandy soil. its state parameter, dilation rate and ha...

In this research, mechanical buckling of rectangular plates of functionally graded materials (FGMs) is considered. Equilibrium and stability equations of a FGM rectangular plate under uniform in-plane compression are derived. For isotropic materials, convergent buckling loads have been presented for non-uniformly compressed rectangular plates based on a rigorous superposition fourier solution f...

Aggregations of Oreaster reticulatus (L.) in a large sand patch amid an offshore seagrass bed (Syringodium filiforme) off St. Croix (US Virgin Islands) were characterized by protracted fronts of high density (2-7 individuals m-2). Fronts mlgrated across the sand patch at approximately 7 m d-l and were refracted and deflected at the grassbed border. Intensive microphagous feeding effected a 2-fo...

Today we need faster devices with high voltage and high switching frequency capability, generally used Silicon-based devices are not able to meet these requirements as they need costly cooling systems, so we need much faster devices like Wide band-gap based semiconductors. These devices have superior physical properties that offer multiple advantages like lower intrinsic carrier concentration ,...