The effect of (a huge number of) pumping holes on beam dynamics and stability, described in terms of coupling impedances, is a fundamental issue and has been carefully investigated, both theoretically [1] and experimentally [2]. With the exception of a few very simple pipe geometris, for which the modal expansion of the electromagnetic field is available, beam coupling impedances can be only co...

Some of the challenges being faced by the petroleum development industry worldwide are low-cost and more efficient well completion, water-shutoff, other types of zonal isolation, etc. Successfully addressing these issues, solid expandable tubulars (SETs) are finding increasing use for enhanced oil recovery from difficult or damaged wells. All SET applications revolve around cold expansion of th...

Spatially regulated transcription of the pipe gene in ventral cells of the Drosophila ovary follicle cell epithelium is a key event that specifies progeny embryo dorsal-ventral (DV) polarity. pipe encodes ten putative protein isoforms, all of which exhibit similarity to vertebrate glycosaminoglycan-modifying enzymes. Expression of one of the isoforms, Pipe-ST2, in follicle cells has previously ...

In the development process of a certain CHINA VI proprietary brand car model, there exists problem intermittent “dada” sound in cockpit during idling. After investigation, it’s determined that air pulse noise generated when canister purge solenoid valve is working, it transmitted to panels through pipeline, and then cockpit, which would cause sound. By adding expansion chamber desorption pipe d...

One way of attenuating broad band noise that propagates through ducts or pipe systems is to use one or more reactive-type acoustic components, each of which is specifically designed for optimal performance at a particular frequency range. This paper uses the transfer matrix method for predicting the transmission loss (TL) of a system with resonators connected to the main duct and a side branch ...

As a new type of pipe, bimetallic composite pipe is widely used in various industries the chemical industry, because its internal and external tubes use different metals, so it can cope with variety working conditions. At present, application field mostly inner strong outer weak this has not been studied accordingly. In paper, theory expansion derived, complete set methods related parameter cal...

This paper presents a model for predicting pressure losses in foams of various expansions and pressures, in pipes of any given diameter, once the foam behavior has been characterized at a single expansion and pressure. The model incorporates a modified form of the power-law viscosity model of foam, which is obtained through the method of volume equalization. Since apparent wall slip contributes...

Abstract—A steam power plant is housed with various types of equipments like boiler, turbine, heat exchanger etc. These equipments are mainly connected with piping systems. Such a piping layout design depends mainly on stress analysis and flexibility. It will vary with respect to pipe geometrical properties, pressure, temperature, and supports. The present paper is to analyze the presence and e...

The Oregon Health & Science University submission to the TREC 2007 Genomics Track approached the entity list question answering task using a modular object oriented system framework. A system object coordinates a collection of processing objects into a pipe that constructs a set of queries, retrieves passage, and then processes those passages into a final output answer set. Using the framework ...