device for tensile testing of brittle materials

a small (100*210*191 mm) device is described for determining the ultimate strength of brittle metallic materials under uniaxial tensile load. the design features of this device ensure high measurement accuracy due to constantly uniaxial loading and strain vectors, the absence of stress concentration at the specimen ends and points of its ..

computer used to field test large t/gs

an automatic data-acquisition system is being used to conduct full-scale asme acceptance tests of large steam-turbine/generators the test program includes the instrumentation, interfacing hardware for analog-to-digital conversion, and transmission of data to a trailer-mounted computer, the software that controls the acquisition of the dat..

complex mechanisation and automation of production processes at the klimovskii engineering works

the klimovskii works produces around 80percent of the cotton weaving looms produced in the soviet union. the works is currently under reconstruction, and a number of projects aimed at improving productivity are described. a stepping conveyor line for assembly is available for the high-volume atpr loom: the machine shop is reorganised with..

leucocyte removal prior to study of erythrocyte deformability

positive-pressure and initial-flow-rate (hemorheometre) methods for the study of erythrocyte filtration through 5 mum diameter pores are highly sensitive to the presence of contaminating leucocytes in the erythrocyte test suspension. a prefiltration step, in which heparinised or edta-anticoagulated whole-blood was passed through a column ..

disturbance of the thermal vasomotor control system in raynaud's disease-a pilot study

the thermal vasomotor control of digital blood flow has been investigated in 34 subjects. seventeen were suffering from raynaud's phenomenon, ten were controls and seven were suffering from diseases thought to be connected with a malfunction of the sympathetic nervous system. digital blood flow was recorded in one hand while the contralat..

bioelectric properties and ion transport of airways excised from adult and fetal sheep

segments of fetal and maternal trachea, maternal bronchi from near-term sheep, and trachea and bronchi from nonpregnant adult sheep were excised and mounted as sheets in ussing chambers. the conductance (g) for each group of tissues was similar (=4 ms/cm/sup -2/): the short circuit current (i/sub sc/) ranged from 45-90 mua/cm/sup -2/. und..

encryption software

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insulating material for low voltage

the great development of plastics has been spurred by the lower production and material costs of plastics when compared to materials such as metal, wood, ceramics, wool and cotton. therefore, technopolymers have replaced traditional materials in their insulating role in low voltage electric equipment. such materials must withstand a serie..

mission accomplished (insurance software)

cotton states insurance co. combed the software market for a package that offers a complete integrated insurance agency automation system, one that will benefit both the agent and the home office. when they discovered that the product they needed simply did not exist, they decided to create their own. two years later they released 'partne..

international test conference 1985 proceedings. the future of test (cat. no.85ch2230-1)

the following topics are dealt with' test economics: test generation: input stimulus generation for built-in self-testing: systems testing: calibration and timing accuracy of test equipment: test technology in the university: automatic test program generation: nontraditional board testing: vlsi test systems: memory testing: design verific..