Abstract: An anti-fatigue and safety control method for ultra-long life service structures under extreme environment, comprising: judge the fatigue fracture mode in the long life stage of the service structure; according to the interaction principle of defect-matrix, obtain the internal defect induced fatigue cracking mechanism in ultra-high cycle regime under the service environment; considering the environmental factors, clarify the internal defect-matrix-environment interaction mechanism under service conditions and obtain the environmental weakening coefficient; considering the environmental factors, establish a fatigue life prediction model based on defect-load-life correlation under service conditions in ultra-high cycle regime; the process parameters of material metallurgy and manufacturing, design parameters of structural strength, structural service stress and environmental parameters are regulated based on the concept of integrated design/manufacturing.

Abstract: The present invention provides a removable input tray to be used in an image forming device, such as a printer. The input tray includes a front wall with a sloped surface for sheet separation, an opening in the front wall, and a retractor pivotally mounted in the opening. The retractor is movable between a stopping position and a retracted position, the stopping position provides a stop to the leading edge of a stack of media sheets when the stack is being inserted into the input tray, and the retracted position is triggered when the input tray is fully inserted into the image forming device.

Abstract: High resistivity chromium silicide coatings that are chemically, physically, and electrically stable at high temperatures are provided. The coatings are applied to substrates, optionally over a barrier layer of dielectric. The coatings are deposited in a magnetron sputtering process involving sputtering of a CrSi.sub.2 target in the presence of a gaseous mixture that includes nitrogen. The coatings so provided typically have resistivities on the order of 100 to 20,000 ohms per square. The degree of nitrogen incorporation varies with the thickness of the chromium silicide to give selected ranges of stable products.

Abstract: The invention relates to a radiation curable coating which provides superior abrasion and chemical resistance and excellent adhesion properties. The coating is produced by radiation curing. A first monomer selected from the group consisting of triacrylates and tetracrylate mixed with a second monomer having an N-vinyl imido group, preferably an N-vinyl lactam, such as vinyl pyrrolidone or vinyl caprolactam. The monomer mixture is substantially oligomer-free and if the radiation is ultraviolet light, a photoinitiator, preferably p-phenoxydichloro acetophenone or dimethoxyphenyl acetophenone, is included in the mixture.

Abstract: A radiation curable coating comprising;A. an oligomer of Formula I: ##STR1## wherein: R.sup.1 is hydrogen or methyl;Y is a divalent urethane residue;B. an acrylic ultra-violet light absorber of Formula IV: ##STR2## wherein R.sup.4 is alkyl or hydroxy alkylene. Preferably the coating composition contains a vinyl monomer copolymerizable with the oligomer. The process for curing the coating is also disclosed.

Abstract: A coating composition comprising;A. an oligomer of Formula I: ##STR1## wherein: R.sup.1 is hydrogen or methyl;R.sup.2 is lower alkylene;R.sup.3 is aliphatic or cycloaliphatic;X is --O-- or --NH--;n is an integer from 2 to 50 inclusive;B. n-vinyl-2-pyrrolidone;C. an acrylic acid ester having a boiling point of at least 200.degree. C at 760 mm Hg.