First discharge calculations are carried out to set release characteristics for the hazardous chemical (including depressurisation to ambient). Scenarios which may be modelled includes releases from vessels (leaks or catastrophic ruptures), short pipes or long pipes and releases of combustion products following a warehouse fire. Released considered include releases of sub-cooled liquid, superhe...

A finite-difference procedure is employed to predict the development of turbulent flow in curved pipes. The turbulence model used involves the solution of two differential equations, one for the kinetic energy of the turbulence and the other for its dissipation rate. The predicted total-velocity contours for the developing flow in a 180’ bend are compared with the experimental data. Predictions...

Abstract In modern industrial production, vision measurement systems are widely used for product quality inspection. Camera calibration is a crucial step in that directly affects the accuracy of results. However, practical applications, limited space and restricted movement targets present new challenges camera calibration. this paper, we propose method suitable with space. This only requires o...

The title compound, cis-[Re(C(12)H(24)O(4)P)Cl(2)O(C(18)H(15)P)], was prepared from the analogous trans isomer [Głowiak et al. (2000 ▶). Polyhedron, 19, 2667-2672] by a trans-cis isomerization reaction. The Re(V) atom adopts a distorted octa-hedral coordination geometry. Besides being coordinated by the oxide and the butano-late O atoms, the Re(V) atom is coordinated by a pair of chloride ligan...

In the title compound, [Re(C10H6NO2)(CO)3{As(C6H5)3}], the coordination environment of Re(I) is that of a distorted octa-hedron. Three coordination sites are occupied by three carbonyl groups in a facial arrangement and the remaining three sites by tri-phenyl-arsane and deprotonated quinaldic acid in As-mono- and N,O-bidentate fashions, respectively. In the crystal, the complexes are linked thr...

Alias Limited, market leader for piping isometric software, today announced the availability of I-View, a 3D pipe visualization tool. I-View is capable of handling single or multiple pipes from any 3D plant design system supporting ISOGEN. Even piping ® les from diå erent systems can be viewed as a single model. This new module now provides I-Sketch users with the ability to view pipes in true ...

A novel way of measuring a portion of the pipe’s crosssection Þlled with liquid (PPCSFWL) and ßow-rate of liquid through partially Þlled pipes, based on electromagnetic method, is proposed. The technique developed is valid for laminar ßow and cylindric pipes. The measuring method, based on nonlinear relationships between the PPCSFWL and the measured signals, is developed and utilizes an optimal...

background: based on recent studies, there are controversial reports on the ca-pacity of tissue cyst forming of toxoplasma gondii rh strain. in this study, the capac-ity was evaluated by in vivo and in vitro experiments. methods : rh strain was subcutaneously inoculated to ten wistar rats. after one month, their blood, brain, tongue and diaphragm were collected and evaluated by mat, pcr, pathol...

in the diesel engine exhaust gas recirculation (egr) components, valve and connecting pipes are the critical components and fails often during new engine development. these components are important for meeting nox emissions norms. therefore design of these components should remain robust. but the challenge in design is compact packaging of complete egr components on the engine consequently vibr...