In order to study the effect of calcium sulfate whiskers and carbonate on road performance asphalt mixtures, high temperature stability, low performance, change water two with different dosage levels mixture was obtained. The test results show that can improve stability within a certain level range, but has no obvious improvement effect, adding excessive will reduce performance. addition signif...

Seals with beaded whiskers-the majority of true seals (Phocids)-are able to trace even minute disturbance caused by prey fish in the ambient flow using only sensory input from their whiskers. The unique three-dimensional undulating morphology of seal whiskers has been associated with their capability of suppressing vortex-induced vibration and reducing drag. The exceptional hydrodynamic traits ...

Introduction: Enstatite whiskers (<10 µm length, <200 nm width) occur in chondritic-porous interplanetary dust particles (CP IDPs) [1], an Antarctic micrometeorite [2] and a comet 81P/Wild-2 sample [3]. The whiskers are typically elongated along the [100] axis and contain axial screw dislocations, while those in terrestrial rocks and meteorites are elongated along [001]. The unique crystal morp...

-We investigated alterations of the metabolic whisker map of barrel cortex after the removal of the follicles of left whiskers C1, C2 and C3 in adult albino mice. The quantitative autoradiographic [14C]deoxyglucose method was used to measure local cerebral metabolic rates for glucose in barrel cortex of mice two, four, eight, 64, 160 and 250 days after the lesion. Metabolic rates were measured ...

Observation of terrestrial mammals suggests that they can follow the wind (anemotaxis), but the sensory cues underlying this ability have not been studied. We identify a significant contribution to anemotaxis mediated by whiskers (vibrissae), a modality previously studied only in the context of direct tactile contact. Five rats trained on a five-alternative forced-choice airflow localization ta...

In many animal species, whiskers are an important sensory modality. Rats for example navigate, explore and recognize objects by actively whisking them, seals even use them to hunt in murky water. Whiskers also make an excellent model system for biologists due to their well defined anatomy. Recently, whiskers have also attracted an increasing interest by roboticists. We have built an artificial ...

By means of a computational model, we study the relation between two complementary views of gelation, rheological tests against the characterization of a network of consecutive particles. The model we propose consists of slender, plane, colloidal sized particles, which we name laths, which self-assemble into long ordered aggregates of several particles; called whiskers in the literature. Within...

During the synthesis of SiC, Si3N 4 and sialon whiskers by carbothermal reduction of SiO 2, a localized formation of amorphous phases or Si2N20 powders was observed beneath these whiskers. Because these whiskers were formed by the vapour/solid mechanism, the controlling gas phase was of primary importance to obtain whiskers of tailored morphology and chemistry. To elucidate the effect of the ga...

Title of Document: TIN WHISKER RISK ASSESSMENT STUDIES Tong Fang, Doctor of Philosophy, 2005 Directed By: Professor Michael G. Pecht Department of Mechanical Engineering As a result of the global transition to lead (Pb)-free electronics, pure tin and high tin lead-free alloys have been widely adopted by the electronics part manufacturers as the materials of terminal finishes. However, electrica...

Resin composites currently available are not suitable for use as large stress-bearing posterior restorations involving cusps due to their tendencies toward excessive fracture and wear. The glass fillers in composites provide only limited reinforcement because of the brittleness and low strength of glass. The aim of the present study was to reinforce dental resins with ceramic single-crystalline...