نتایج جستجو برای: polyethylene pipes
تعداد نتایج: 38996 فیلتر نتایج به سال:
Water distribution networks comprised of underground reinforced concrete pipes deteriorate with time due to environmental conditions, such as chloride-induced corrosion and differential soil movements [1]. If the pipes in these networks are not periodically replaced, they will eventually fail. Strategies for replacement for these pipes depend on 1) the risks associated with failure of a water d...
Recently many plants' pipes and drains became old and many robots to inspect these pipes were developed in the past. Wired robots were put to practical use, but they had a heavy power supply and a signal wire. Therefore, new inspection robots using wireless radio communication system are considered useful for long complex pipes and long distance pipes including straight, vertical and bend line....
Single-wall fullerene nanotubes were converted from nearly endless, highly tangled ropes into short, open-ended pipes that behave as individual macromolecules. Raw nanotube material was purified in large batches, and the ropes were cut into 100- to 300-nanometer lengths. The resulting pieces formed a stable colloidal suspension in water with the help of surfactants. These suspensions permit a v...
Understanding soil-pipe interaction during cyclic axial displacement is essential for the design and evaluation of buried pipeline systems. This study introduces an efficient practical numerical approach using beam-spring-interface elements to simulate behaviour. Numerical predictions evolution shear normal stress distributions around pipe are validated against full-scale experimental results s...
The use of an automated net-hauling system using four polyethylene (PE) pipes is proposed in this study to increase the efficiency set net fishery. In system, are installed on seabed beneath a box chamber net. Compressed air injected into first pipe at slope and then other succession. fish cornered between fourth end performance from second evaluated numerical analysis, water tank tests, field ...
In this demo we present a first implementation of Semantic Web Pipes, a powerful tool to build RDF-based mashups. Semantic Web pipes are defined in XML and when executed they fetch RDF graphs on the Web, operate on them, and produce an RDF output which is itself accessible via a stable URL. Humans can also use pipes directly thanks to HTML wrapping of the pipe parameters and outputs. The implem...
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