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MIBA Spezial – Nr. 112 2017 [GER] (.PDF) Magazines & Newspapers 249. Requirements: Any PDF reader, 27 MB Overview: German magazine devoted to. Jaguar 3 In 1 Flat Panel Television Mount Solution Manual.

() Antireflection coatings are essential for various optics in microscopy, lithography, laser Antireflection coatings are essential for various optics in microscopy, lithography, laser processing and everyday products such as eyeglass lenses, cameras, etc. Advances in coating technologies enable more performant optics. This work demonstrates antireflection coatings by atomic layer deposition with nearly identical optical function along the surface of steeply curved lenses. The reflectance was reduced from approximately 4% to an average of 0.3% in the 400 nm to 750 nm spectral range.

Abstract: For the purpose of improving the working reliability of the blisk (integrally-bladed disk) under severe environment, a passive vibration reduction method by depositing a hard coating on both sides of blades is developed and then investigated systematically. Firstly, an analytical model of the blisk-deposited hard coating is taken into account. Secondly, by using the Oberst beam theory and axial symmetry property, the composite hard-coated blade is equivalent to a special homogeneous blade possessing the equivalent material parameters. Then, energy equations of the blisk with hard-coated blades are derived by using the complex-valued modulus, and then substituted into the Lagrange equations. Additionally, eigenvalue equations of the blisk with hard-coated blades are acquired by taking advantage of Rayleigh-Ritz method, and its natural characteristics are obtained subsequently. Further, the frequency response functions of the blisk with hard-coated blades are formulated by using proportional damping to achieve its damping matrix.

Finally, a stainless-steel blisk with deposited NiCoCrAlY + YSZ hard coating on both sides of the blades is chosen as the study case to conduct numerical calculations, and the results are compared with those obtained by experimental tests in terms of natural frequencies and mode shapes. The variation of natural frequencies, modal loss factors and frequency response functions of the blisk generated by hard coating are studied, respectively, and the influence of the coating thickness on the damping capacity are further discussed. Abstract: Strawberry packaging based on four different chitosan–poly(vinylalcohol) blend films with chitosan contents of 0 wt%, 20 wt%, 25 wt%, and 30 wt% was tested. The samples were stored at 18 ± 2 °C and 60% ± 5% relative humidity for six days. Strawberry quality was evaluated during and after storage. Strawberries packaged using these films showed significant differences in weight loss and firmness, decay percentage, titratable acidity, total soluble solids, and ascorbic acid content when compared to non-packaged strawberries. The 25 wt% bilayer film showed the best performance in terms of delaying changes in strawberries.