نتایج جستجو برای: tube material

تعداد نتایج: 455415  

جبرئیلی, مهناز, سلیمی, شمسی, سید رسولی, الهه, قوجا زاده, مرتضی,

  Abstract   Background & Aim: Premature infants experience painful procedures during care and treatment. Nurses should reduce short and long-term effects of pain caused by diagnostic and therapeutic procedures. The aim of this study was to determine the swaddling effect on pain of nasogastric tube insertion in preterm infants.   Material & Methods: It was a cross-over ran...

2002
Pierrick BOURGEAT Fabrice MERIAUDEAU

The topic of this research is to the study the feasibility of a machine vision prototype for the control of metallic tubes (used in water pomp). Nine different kinds of defects located everywhere on the tube have to be detected: The defects are: on the top: little hollows, bumps, and excesses of material on the body: horizontal bumps, vertical bumps, vertical scratches and finally on the bottom...

2015
Christiane Schotten Dorota Plaza Simone Manzini Steven P. Nolan Steven V. Ley Duncan L. Browne Alexei Lapkin

The direct chemical conversion of cocoa butter triglycerides, a material available as a postmanufacture waste stream from the food industry, to 1-decene by way of ethenolysis is reported. The conversion of the raw waste material was made possible by use of 1 mol % of the [RuCl2(iBu-phoban)2(3-phenylindenyl)] catalyst. The process has been investigated in both batch and flow conditions, where th...

Journal: :Journal of the Royal Society, Interface 2014
Darshil U Shah Fritz Vollrath David Porter John Stires Dimitri D Deheyn

The housing tube material of the marine worm Chaetopterus sp. exhibits thermal stability up to 250°C, similar to other biological materials such as mulberry silkworm cocoons. Interestingly, however, dynamic mechanical thermal analysis conducted in both air and water elucidated the lack of a glass transition in the organic tube wall material. In fact, the viscoelastic properties of the anhydrous...

2014
Adeleke Adesina Guhan Rammohan Rebecca Jeanmonod

Percutaneous enteral feeding tubes are placed about 250,000 times each year in the United States. Although they are relatively safe, their placement may be complicated by perforation, infection, bleeding, vomiting, dislodgment, and obstruction. There have been numerous reports of antegrade migration of gastrojejunostomy (G-J) tubes. We report a case of G-J tube regurgitation following protracte...

2010
Dharmendra TRIPATHI

The investigation is to explore the transportation of a viscoelastic fluid with fractional second grade model by peristalsis through a cylindrical tube under the assumptions of long wavelength and low Reynolds number. Analytical solution of problem is obtained by using Caputo’s definition. It is assumed that the crosssection of the tube varies sinusoidally along the length of tube. The effects ...

2017
Muhammed Beşir Öztürk Seda Asrufoğlu Barutca Elif Seda Keskin Bekir Atik

The parotid duct can be damaged in traumatic injuries and surgical interventions. Early diagnosis and treatment of a duct injury is of great importance because complications such as sialocele and salivary gland fistula may develop if the duct is not surgically repaired. We think the cuff of an intubation tube is an ideal material in parotid duct repair, because of its technical characteristics,...

Increasing material’s strength is of particular importance. Improving material’s mechanical properties such as strength could reduce the size and weight of the structure. The size and weight of the structure are among the effective parameters in design. Since the past a variety of methods have been developed to increase the strength of metals that are capable of increasing metals’ strength to a...

2009
M. M. Rahman

This paper presents the application of finite element method (FEM) to analyze the tube temperature distribution in a water tube boiler. Two-dimensional (2-D) finite element models are developed where the axi-symmetric triangular elements for the cross section area along the water tube are applied in computer software namely MSC Patran-Nastran. The analysis of the temperature distribution for ev...

2005
ROBERT D. PRUSCH

1. The K and Cl~ levels and osmotic concentration of the tube feet fluid in intact starfish (Asterias forbesi) are higher than that in the external sea water or perivisceral (coelomic) fluid. 2. The increase in K+ in the fluid in the tube feet lumen is brought about by the active secretion of K+ by the tube feet epithelium. 3. No exchange of material from the external environment with the more ...

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