The paper deals with calculation of the parameters of ceramic material from a set of destruction tests of ceramic heads of total hip joint endoprosthesis. The standard way of calculation of the material parameters consists in carrying out a set of 3 or 4 point bending tests of specimens cut out from parts of the ceramic material to be analysed. In case of ceramic heads, it is not possible to cu...

lithium disilicate nano-powders were synthesized via a mild condition hydrothermal reaction at 180 ºc for 48 and 72 h with a non stoichiometric1:2 li:si molar ratio in naoh aqueous solution using li2co3 and sio2.h2o as raw materials. the synthesized materials were characterized by powder x-ray diffraction (pxrd) technique and fourier transform infrared (ftir) spectroscopy. the xrd data showed t...

The methodology for calculating the total carriage depot warehouse space and optimal volume of inventory items stock in train “Uztemiryulyulovchi” (“Uzzheldorpass”) Joint Stock Company is presented. formulas determining costs placing receiving all orders, storing a certain period were defined. A logical data scheme that reflects main points, necessary to automate process goods materials was sug...

The article considers the semantics of English, German and Russian idioms representing communicative values, in particular: mutual understanding conflict. syntax semantic properties are analyzed contexts use, obtained from British National Corpus, Corpus Contemporary American Institute Language Mannheim, correlation dictionary actual meanings fixed expressions, specificity values different cult...

statement of the problem: optical properties of the composite resins, concerning their translucency and thickness, are affected by discolored tooth structure or inherent darkness of the oral cavity. purpose: this study aimed to compare the translucency parameter (tp) of five different composite resins in different thicknesses and to evaluate their masking ability in black backgrounds. materials...