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Theory and calculation of fabric strength
Fibre Chemistry, 2011A theory of biaxial stretching of fabric taking account of the extensibility of the warp and weft threads and the structural changes occurring in the fabric during deformation is presented. The problem of calculating the loads arising in a fabric undergoing stretching is solved for a fabric with prescribed structure and density over the warp and weft ...
V. P. Shcherbakov +3 more
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Calculation of Strength and Other Properties
1986A necessary condition for quality control, as well as for the correct calculation of the specifications of gas-filled materials (including polymeric foams), is a rigorous quantitative evaluation of the apparent density distribution over the bulk.
Fjodor A. Shutov +2 more
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Calculation of the Strength of Combined Filaments
Fibre Chemistry, 2014This article examines how the strength of a finished combined filament is affected by the interaction between its rod-shaped component and its twisting component. It is argued that it is important to optimize the number of twists. The character of the changes which take place in the filament’s geometric parameters during tensile loading is also ...
E. V. Blagushina +2 more
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Calculation of the strength of spherical covers
Chemical and Petroleum Engineering, 1968The manufacture of spherical covers, extensively used in chemical engineering, is simple; for the same thickness they are 30% lighter in weight than elliptical covers. Apart from that, the use of spherical covers improves the appearance of apparatus. The theoretical investigations on the strength of spherical covers are well known [I].
A. S. Obukhov +3 more
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On the calculation of phosphorescence oscillator strength
Monatshefte f�r Chemie, 1980It is pointed out that one of the two commonly used expressions for calculating the oscillator strength of phosphorescence transitions is incomplete. By using the adequate transition operator, a correction term is added to one of the two expressions which then become analytically equivalent up to second order in the fine structure constant.
Robert Wolff, Franz Mark
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Calculations of the strength of the polyethylene molecule
Journal of Polymer Science: Polymer Physics Edition, 1973AbstractA theoretical determination of the elastic modulus, the breaking strength, and breaking strain is made for a single infinitely long molecule of polyethylene (CH2)∞. These results are compared with those of a similar calculation on a molecule of polyethylene with a side chain attached.
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Remarks on the Calculation of Bond Strengths
The Journal of Chemical Physics, 1939The hypothesis that predissociation as evidenced by sudden broadening of the rotation lines in an absorption spectrum may be used to establish the strength of the bond involved in the associated photochemical act is re-examined. It is shown to lead to incorrect conclusions in the few cases where its use seemed applicable. New values are derived for the
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, 2023 Nomographs for Calculation of Field Strength
IETE Journal of Research, 1969A method of calculating skywave field strength in tropical region was developed in the Research Department, All India Radio. This is based on results of ionospheric absorption and field strength measurement conducted by the department. In order to enable easy estimating of skywave field strength by this method at any distance, for any mode of ...
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