The present work aims at reducing the friction of rubber soles sliding on ceramic floorings. Fitting bored cylindrical protrusions with different diameters on rubber soles was proposed. Experiments were carried out to evaluate the performance of the proposed protrusions in increasing friction coefficient at dry and contaminated floorings. It was found that, at dry sliding, friction coefficient ...

many experimental studies have been conducted on development of the scour hole as a result of vertical jet impaction. research has shown that aeration of the nappe flow in the model is much weaker than that in the prototype. therefore, the influence of aeration on scour holes needs further study. experimental investigation of the effects of air entrainment and tail water depth on the scour hole...

The correct outgrowth of axons is essential for the development and regeneration of nervous systems. Axon growth is primarily driven by microtubules. Key regulators of microtubules in this context are the spectraplakins, a family of evolutionarily conserved actin-microtubule linkers. Loss of function of the mouse spectraplakin ACF7 or of its close Drosophila homolog Short stop/Shot similarly ca...

There is increasing concern that birds in terrestrial ecosystems may be exposed to spent lead shot. Evidence exists that upland birds, particularly mourning doves (Zenaida macroura), ingest spent lead shot and that raptors ingest lead shot by consuming wounded game. Mortality, neurological dysfunction, immune suppression, and reproductive impairment are documented effects of exposure to lead in...

Sex hormones and their receptors play critical roles in the development and progression of the breast and prostate cancers. Here we report that a novel type of transfer RNA (tRNA)-derived small RNA, termed Sex HOrmone-dependent TRNA-derived RNAs (SHOT-RNAs), are specifically and abundantly expressed in estrogen receptor (ER)-positive breast cancer and androgen receptor (AR)-positive prostate ca...

Title of dissertation: SEARCHING FOR ENTANGLED ELECTRON SPIN STATES WITH SHOT NOISE DETECTION Yuanzhen Chen, Doctor of Philosophy, 2005 Dissertation directed by: Richard A. Webb Department of Physics We report experimental research into the possibility of using shot noise measurements to detect the entangled states of electron spins. The study is part of the effort towards the demonstration of ...

A video shot is defined as a continuously imaged temporal segment of a video. Since the semantic content of a video is largely based on its production (imaging) process, the complete segmentation of a video into shots is a fundamental first step for most kinds of semantic video processing tasks. Here we present a classification of shot boundary detection algorithms, including those that deal wi...

We propose an accurate close-up shot detection method with parallel distributed processing. Straightforward approaches that divide a video into multiple fixed length partitions are not accurate because the partition boundaries terminate events before they actually end. To solve this problem, our method alters the shot based partitions to ensure complete coverage. Our method offers 2 processes f...

Shot peening (SP), as one of the severe plastic deformation (SPD) methods is employed for surface modification of the engineering components by improving the metallurgical and mechanical properties. Furthermore artificial neural network (ANN) has been widely used in different science and engineering problems for predicting and optimizing in the last decade. In the present study, effects of conv...