Effect of Deuteration on the Diameter-Effect Curve of Liquid Nitromethane

2006 ◽  
Vol 110 (24) ◽  
pp. 7744-7748 ◽  
Author(s):  
Ray Engelke ◽  
Stephen A. Sheffield ◽  
Howard L. Stacy
Keyword(s):  
Effect Curve ◽  
Diameter Effect

STUDY OF THE PIPE DIAMETER EFFECT ON HORIZONTAL AIR-WATER TWO-PHASE FLOW

2017 ◽  
Author(s):  
Guilherme Gonçalves da Silva ◽  
Saon Vieira ◽  
Marcelo Souza de Castro ◽  
Felipe Jaloretto da Silva
Keyword(s):  
Two Phase Flow ◽  
Pipe Diameter ◽  
Phase Flow ◽  
Two Phase ◽  
Diameter Effect

The point of transition on the dose-effect curve as a reference point in the evaluation of in vitro toxicity data

2012 ◽  
Vol 32 (10) ◽  
pp. 843-849 ◽  
Author(s):  
Salomon Sand ◽  
Joakim Ringblom ◽  
Helen Håkansson ◽  
Mattias Öberg
Keyword(s):  
Reference Point ◽  
Dose Effect ◽  
In Vitro Toxicity ◽  
Toxicity Data ◽  
Effect Curve

Diameter effect of electrospun carbon fiber support for the catalysis of Pt nanoparticles in glucose oxidation

2016 ◽  
Vol 283 ◽  
pp. 304-312 ◽  
Author(s):  
Jyun-Sian Ye ◽  
Zhe-Ting Liu ◽  
Ching-Chang Lai ◽  
Chieh-Tsung Lo ◽  
Chien-Liang Lee
Keyword(s):  
Carbon Fiber ◽  
Glucose Oxidation ◽  
Pt Nanoparticles ◽  
Diameter Effect

Modelling effects of pile diameter

2016 ◽  
Vol 53 (1) ◽  
pp. 173-178 ◽  
Author(s):  
W.D. Liam Finn ◽  
J. Dowling
Keyword(s):  
Small Diameter ◽  
Field Tests ◽  
Technical Note ◽  
American Petroleum Institute ◽  
Finite Element Program ◽  
Model Soil ◽  
Pile Diameter ◽  
Element Program ◽  
Load Tests ◽  
Diameter Effect

The most commonly used program for the analysis of piles under static lateral loading is LPILE. The program uses the nonlinear Winkler springs recommended by the American Petroleum Institute (API) to model soil–pile interaction. The p–y (load–displacement) curves were developed from field tests, with pile diameters in the range 0.324–0.67 m. When these p–y curves are used to analyze load tests on piles with larger diameters, the computed load–deflection curves underestimate the stiffnesses of the test piles. This effect is referred to as the pile diameter effect. In this technical note, a very different approach is presented to evaluate the pile diameter effect. Both LPILE and a continuum-based finite element program VERSAT-P3D were calibrated to closely simulate the results of two lateral load tests on small-diameter piles at two different sites. VERSAT-P3D modelled the volume of the pile and LPILE did not. Each program was used to develop p–y curves for increasingly larger pile diameters up to 2.0 m. An important finding for practice is that there was no pile diameter effect for displacements up to 60 mm. LPILE can be used with confidence in practice in this displacement range. Thereafter, the load–deflection curves from LPILE became softer and the pile diameter effect became evident.

Formation of ssb, dsb, and Uracil in Monofilarly and Bifilarly Bromouracil-Substituted DNA Molecules

1992 ◽  
Vol 47 (3-4) ◽  
pp. 255-263
Author(s):  
Henning Menke ◽  
Wolfgang Köhnlein
Keyword(s):  
Cross Section ◽  
Cross Sections ◽  
Uv Light ◽  
Linear Part ◽  
Reversed Phase ◽  
Direct Production ◽  
Significant Difference ◽  
Effect Curve ◽  
The Cross

Abstract Bifilarly BU-substituted ColE 1 plasmid and monofilarly BU-substituted M 13 phage DNA were irradiated with UV light of 313 nm. Using agarose gel electrophoresis and “reversed phase” HPLC technique ssb, dsb induction and uracil formation, respectively, could be detected in the irradiated DNA in dependence on the UV fluence. The analysis of the strandbreaks in bifilar Col E1 DNA shows a significant part of directly induced dsb. Cross sections of ssb induction from 4.1 m2/J x 107 in 28%, 3.9 m2/J x 107 in 55% and 3.1 m2/J x 107 in 8 5 -9 0% BU-substituted DNA were calculated. The cross section for dsb induction was found to be 0.04 m2/J x 107, estimated from the linear part of the fluence effect curve. In monofilar M13 DNA a linear fluence effect curve for dsb induction was obtained. Excluding other than the direct production of dsb by using an in vitro approach for M13 DNA , the results strongly support the hypothesis that dsb can be induced by one photochem ical absorption event. The cross section for ssb was 3.8 m2/J x 107 and for dsb 0.05 m2/J x 107 in 41.5% monofilarly BU-substituted M13 DNA . The comparison of ssb, dsb, and uracil production in bifilar and monofilar DNA with similar BU substitution showed no significant difference between the two DNA systems (ColE 1, M 13), indicating that the location of BU molecules in one or in both DNA strands will not lead to a different number of lesions after UV313 exposure.

Airway epithelium modulates the responsiveness of porcine bronchial smooth muscle

1988 ◽  
Vol 65 (2) ◽  
pp. 721-727 ◽  
Author(s):  
K. Stuart-Smith ◽  
P. M. Vanhoutte
Keyword(s):  
Electrical Stimulation ◽  
Nerve Stimulation ◽  
Airway Epithelium ◽  
Maximal Response ◽  
Physiological Salt Solution ◽  
Bronchial Smooth Muscle ◽  
Peak Response ◽  
Rightward Shift ◽  
Effect Curve ◽  
Fifth Order

The effect of epithelium removal on the responses of porcine airways to exogenously applied agonists and nerve stimulation was examined. Paired rings of third- (segmental), fourth- and fifth-order (subsegmental) bronchi, with and without epithelium, were placed in organ chambers in physiological salt solution (95% O2-5% CO2, 37 degrees C). Removal of the epithelium caused a leftward shift in the concentration-effect curve for acetylcholine (3rd and 4th order). A similar shift occurred for histamine (3rd and 5th order). The relaxation to isoproterenol was reduced by epithelium removal in a similar fashion in the three orders. Removal of the epithelium reduced the maximal response to KCl (3rd and 4th order) and acetylcholine (5th order). The peak response to nerve stimulation showed a significant rightward shift in the absence of epithelium. In fifth-order bronchi, tissues with epithelium showed a significantly greater degree of fade of the response to sustained electrical stimulation. Thus both epithelium-derived relaxing and contracting factors may be released in porcine airways.

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