We present a comprehensive study of epitaxially grown and As-coated GaAs(100) surfaces as a function of As desorption temperature and background pressure. We have used low-energy electron diffraction to determine surface reconstruction, and core-level and valence-band soft-x-ray photoemission spectroscopy to perform chemical and electronic characterization of these surfaces. We find gradual cha...

The source of Enterobacteriaceae on meats was shown to be associated with the meat-handling work surfaces in two packing plants studies. A total of 2,343 Enterobacteriaceae were isolated and identified from meat samples and work surfaces at the packing plants and at the retail facilities. Escherichia coli biotype I and Serratia liquefaciens were detected at all stages of meat handling, indicati...

OBJECTIVE To evaluate the disinfectant effectiveness of alcohol 70% (w/v) using friction, without previous cleaning, on work surfaces, as a concurrent disinfecting procedure in Health Services. METHOD An experimental, randomized and single-blinded laboratory study was undertaken. The samples were enamelled surfaces, intentionally contaminated with Serratia marcescens microorganisms ATCC 14756...

This paper presents a molecular simulation study of the interactions of a protein (lysozyme) with self-assembled monolayers (SAMs) of mannitol and sorbitol terminated alkanethiols in the presence of explicit water molecules and ions. The all-atom simulations were performed to calculate the force generated on the protein as a function of its distance above the SAM surfaces. The structural and dy...

Visual inspection of material’s surface quality is an important quality determining step in industries dealing with surfaces as the prime feature of their product, for instance, plywood, metal, tiles, glass ware and many more. Primarily surfaces are inspected for smoothness and roughness quality. However, defects may arise in form of cracks, spots, holes, presence of excess material, flatness a...

Wear is a complicated phenomenon caused by the relative movement of two contacting surfaces compressed together by a normal force. Prediction of the wear, in most cases, requires various experiments and microstructural characterization of the contacting surfaces. Mathematical models based on physical concepts could provide considerable help in understanding the physical behavior and hence the p...

Wear is a complicated phenomenon caused by the relative movement of two contacting surfaces compressed together by a normal force. Prediction of the wear, in most cases, requires various experiments and microstructural characterization of the contacting surfaces. Mathematical models based on physical concepts could provide considerable help in understanding the physical behavior and hence the p...

Starting from the experimental data referring to the main parameters of the fracture surfaces of some 300-grade maraging steel reported by the classical work published in Nature 308, 721– 722 1984 , this work studied a the multifractal scaling by the main parameters of the slit islands of fracture surfaces produced by a uniaxial tensile loading and b the dependence of the impact energy to fract...

We consider random topologies of surfaces generated by cubic interactions. Such surfaces arise in various contexts in 2-dimensional quantum gravity and as worldsheets of string theory. Our results are most conveniently expressed in terms of a parameter h = n/2+χ, where n is the number of interaction vertices and χ is the Euler characteristic of the surface. Simulations and results for similar m...

An adhesive is a material used for holding two surfaces together. An adhesive must wet the surfaces, hold fast to the surfaces, develop strength after it has been applied, and remain Stable. In this work we work on aerospace application, for that application we used material as SS304 and used Adhesive as EA-E30HV.We used specimen size as 130*30*1.95mm. We used different overlap length and overl...