منابع مشابه
New geometry for TCP: severe plastic deformation of tubes
Since tubes are widely used for different industrial applications, processing of tubes by the Severe Plastic Deformation (SPD) method has been the target of different attempts. Among these attempts, development of SPD processes for tubes based on Equal Channel Angular Pressing (ECAP) has been more successful. As an illustration, Tube Channel Pressing (TCP) has been presented as an attractive SP...
متن کاملContact resistance of quantum tubes
We consider the conductance of a quantum tube connected to a metallic contact. The number of angular momentum states that the tube can support depends on the strength of the radial confinement. We calculate the transmission coefficients which yield the conductance via the Landauer formula, and discuss the relation of our results to armchair carbon nanotubes embedded in a metal. For Al and Au co...
متن کاملComparison of digoxin concentration in plastic serum tubes with clot activator and heparinized plasma tubes
INTRODUCTION Sample type recommended by the manufacturer for the digoxin Abbott assay is either serum collected in glass tubes or plasma (sodium heparin, lithium heparin, citrate, EDTA or oxalate as anticoagulant) collected in plastic tubes. In our hospital samples are collected in plastic tubes. Our hypothesis was that the serum sample collected in plastic serum tube can be used interchangeabl...
متن کاملPerformance of chemically modified plastic blood collection tubes.
OBJECTIVE The objective of this study was to compare newly-modified and aged chemoPET tubes, which contain no problematic surfactants, with commercially available serum blood collection tubes (BCTs) for use in analysis of cortisol, total triiodothyronine (TT3), total thyroxine (TT4), and routine clinical chemistry analytes in serum from apparently healthy volunteers and pooled quality control (...
متن کاملSuitability of plastic collection tubes for cyclosporine measurements.
together with the results of the low ferritin patients of the previously mentioned anemic cohort (five men and eight women). In the group with ferritin values below the reference interval (,25 mg/L), 5 out of 11 men had CDTect values $20 units/L and 8 out of 18 women had CDTect values $26 units/L. Therefore, a disproportionate number of high CDTect values were observed in anemic and nonanemic p...
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ژورنال
عنوان ژورنال: Netherlands Journal of Agricultural Science
سال: 1967
ISSN: 0028-2928
DOI: 10.18174/njas.v15i3.17436