Abstract In the present work, electrodeposition of Zn–Ni alloy from Sulfate bath was carried out in presence a novel brightener (CG), condensation product Cysteine Hydrochloride and Glutaraldehyde. The corrosion studies were using Electrochemical Impedance spectroscopy Potentiostatic techniques. They confirmed an increase resistance protection ability bright zinc–nickel coatings. Surface morpho...

introduction the mahour exploration area is a polymetallic system containing copper, zinc and silver. the mineralization can be seen in two forms of veins and disseminations. this area is structurally within the lut block, west of deh-salm village. recent exploration work and studies carried out by geologists on this volcanic-plutonic area of lut demonstate its importance indicating new reserve...

Spin-coating technique is employed to deposit nanostructured zinc oxide (ZnO) doping aluminium (Al) on p-Si substrate. Atomic forces microscopy (AFM), X-ray diffraction (XRD), ultraviolet–visible (UV–Vis) and scanning electron microscopies (SEM) are utilized investigate the influence of annealing temperature in range 200 600°C morphological, optical, structural topographical characteristics Al ...

We study two reservation deposit policies for a service rm to increase its revenue through higher capacity utilization. First, under the no deposit policy, the rm requires no reservation deposit and imposes no no show penalty. Anticipating potential no shows, a rm may overbook; hence, there is no guarantee that the reserved service will be provided under the no deposit policy. On the contrary, ...

The superiority of formol-ether concentration over the well known zinc sulphate flotation method was demonstrated by Ritchie, Pan, and Hunter (1952). In the latter method the heavier ova (Schistosoma, Fasciola) fail to rise to the surface; with formol-ether, a sedimentation technique, all parasites go to the bottom. The increased yield of positive findings with all types of faecal parasites, th...

Native lead, a rare mineral, occurs in a late-stage vein in the world’s largest lead – zinc – silver deposit, at Broken Hill, Australia. The lead-bearing vein consists mainly of laumontite, quartz, biotite and muscovite, together with minor amounts of lead, galena, sphalerite, molybdenite, and rare allanite-(Ce). Three types of fluid inclusions have been identified: two-phase brine inclusions l...

We have identified a novel zinc finger-containing transcription factor, called Osterix (Osx), that is specifically expressed in all developing bones. In Osx null mice, no bone formation occurs. In endochondral skeletal elements of Osx null mice, mesenchymal cells, together with osteoclasts and blood vessels, invade the mineralized cartilage matrix. However, the mesenchymal cells do not deposit ...

A method for rapid screening of photocatalysts employing a form of scanning electrochemical microscopy (SECM) is described. A piezoelectric dispenser was used to deposit arrays composed of approximately 300-microm-size photocatalyst spots with different compositions onto conducting glass, fluorine-doped tin oxide substrate. The scanning tip of the SECM was replaced by a fiber optic connected to...

Langmuir–Blodgett (LB) technique has been used to deposit composite multilayers of poly(3-octylthiophene) with cadmium arachidate (POT-CdA), zinc arachidate (POT-ZnA) and copper arachidate (POT-CuA). These composite multilayers were used as precursors to develop the respective semiconducting CdS, ZnS and Cu2S nanoclusters in the POT-arachidic acid (POT-AA) matrix. The formation of sulphide nano...