منابع مشابه
Incipient Motion of Sediment Particles over Loose
New experimentals work were conducted to study the effects of sediment deposits’ thickness on the incipient motion of particles in a rigid rectangular channel. The results show that the deposits’ thickness significantly affects the channel’s ability to erode the sediment deposits. New equations were derived taking into account the effects of deposits’ thickness.
متن کاملAdhesive loose packings of small particles
Wenwei Liu, Shuiqing Li1∗, Adrian Baule, Hernán A. Makse3† Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Department of Thermal Engineering, Tsinghua University, Beijing 100084, China School of Mathematical Sciences, Queen Mary University of London, Mile End Road, London E1 4NS, UK Levich Institute and Physics Department, City College of New York, New York 10...
متن کاملAdhesive loose packings of small dry particles.
We explore adhesive loose packings of small dry spherical particles of micrometer size using 3D discrete-element simulations with adhesive contact mechanics and statistical ensemble theory. A dimensionless adhesion parameter (Ad) successfully combines the effects of particle velocities, sizes and the work of adhesion, identifying a universal regime of adhesive packings for Ad > 1. The structura...
متن کاملSurvey of Pesticide Residues in Loose Particles on Hardscape Surfaces
Loose particles on impervious surfaces are an important carrier to transfer pesticides into residential runoff water and subsequently contribute to contamination of urban streams and estuaries by urban-use pesticides. However, data regarding levels of pesticide contamination in the runoff-transferable dusts are scarce and their runoff potential and toxicity impacts to urban watersheds still rem...
متن کاملPainful Hips In Children
The clinical challenge in paediatric hip pain is to distinguish urgent conditions such as infection of the hip joint from the more common irritable hip. Transient synovitis is one of the most common causes in children over 3 years of age but it has similar early symptoms to septic arthritis. This article offers a guide to assessment, an overview of common causes, and clarity around which childr...
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ژورنال
عنوان ژورنال: The Journal of Bone and Joint Surgery. British volume
سال: 1993
ISSN: 0301-620X,2044-5377
DOI: 10.1302/0301-620x.75b1.8421019