The effects of a third element, namely silver, copper, zinc, or antimony, on the microstructure and mechanical properties of eutectic tin-bismuth (Sn–Bi) solder were investigated. The investigation showed that, except for zinc, the addition of a trace amount of the third element improves the ductility of the Sn–Bi solder owing to the formation of a fine, homogeneous ternary eutectic microstruct...

of trypanosomiasis by intravenous injection of tartar emetic or other soluble salts of antimony, it has been found that though they quickly free the peripheral blood from trypanosomes, still the parasites remain in the internal organs. So far, therefore, the treatment of trypanosomiasis by means of intravenous injection of soluble salts of antimony has not been a permanent success. In kala-azar...

The paper reports on experimental modeling of the colloid system composition in natural groundwater. Iron hydroxide is found to be the main component of natural colloid systems. It is shown that silicon compounds and dissolved organic substances (DOS) stabilize iron hydroxide (III), forming a stable colloid system, and preclude coagulation. The presented results suggest that CaCl2 and AlCl3 ele...

Understanding colloid mobilization during transient flow in soil is important for addressing colloid and contaminant transport issues. While theoretical descriptions of colloid detachment exist for saturated systems, corresponding mechanisms of colloid mobilization during drainage and imbibition have not been considered in detail. In this work, theoretical force and torque analyses were perform...

A pentavalent antimony compound (Sdt. 561, solustibosan, antimony-v-hexonate, containing 20 mg. of antimony per c.cm. of solution) , that made a stable solution and could be given intramuscularly, was first introduced b) Prof. H. Schmidt, the pioneer worker on pent*1' valent antimony compounds. Kikuth and Schmidt (1938) found that this compound possessed a marked curative action in the le*,' ma...

Metals cannot be extracted by electrolysis of transition-metal sulfides because as liquids they are semiconductors, which exhibit high levels of electronic conduction and metal dissolution. Herein by introduction of a distinct secondary electrolyte, we reveal a high-throughput electro-desulfurization process that directly converts semiconducting molten stibnite (Sb2S3) into pure (99.9%) liquid ...

This study investigated the concentration/time dependent effects of nanosilver colloid on the motionparameters of the ejaculated ram spermatozoa in vitro. After incubation of sperm samples for 30, 60, 120 and 180 min in the presence of nanosilver colloid (0, 0.001, 0.01, 0.1, 1 and 10 ppm), the motion parameters were evaluated by computer assisted sperm analysis. There was a significant (P

Janus colloids propelled by light, e.g., thermophoretic particles, offer promising prospects as artificial microswimmers. However, their swimming behavior and its dependence on fluid properties and fluid-colloid interactions remain poorly understood. Here, we investigate the behavior of a thermophoretic Janus colloid in its own temperature gradient using numerical simulations. The dissipative p...

Surma is a traditional eye cosmetic and eye-cure of the Indo-Pakistan subcontinent. It is made from antimony suiphide and may contain lead as an accidental impurity remaining in antimony suiphide or as an intentional adulterant. Ingestion of lead through constant use of surma can pose a serious health hazard. This study is an attempt to assess the lead content of surma in forty separate samples...

can be considered cured and the antimony treatment discontinued. From time to time since the introduction of the treatment with the antimony tartrates various rules have been suggested for the course of treatment that is necessary to effect a cure; these rules have become more and more elastic and there is usually a very decided tendency towards prolongation of the course. Sir Leonard Rogers fi...