The Relationship of Theophylline Release with Tablet Surface Area and Aspect Ratio from a New Matrix Tablet Formulation

1988 ◽  
Vol 14 (15-17) ◽  
pp. 2377-2385 ◽  
Author(s):  
David J Trigger ◽  
Peter J Davies ◽  
Malcolm S. Parker
Keyword(s):  
Aspect Ratio ◽  
Surface Area ◽  
Tablet Formulation ◽  
Matrix Tablet ◽  
Relationship Of ◽  
The Relationship

Tire Treadwear — A Comprehensive Evaluation of the Factors: Generic Type, Aspect Ratio, Tread Pattern, and Tread Composition Part I: Introduction and Details on the Organization of the Program

1986 ◽  
Vol 14 (4) ◽  
pp. 201-218 ◽  
Author(s):  
A. G. Veith
Keyword(s):  
Aspect Ratio ◽  
Comprehensive Evaluation ◽  
Test Method ◽  
Interactive Effects ◽  
Data Analyses ◽  
Main Effect ◽  
Systematic Determination ◽  
Relationship Of ◽  
The Relationship

Abstract This four-part series of papers addresses the problem of systematic determination of the influence of several tire factors on tire treadwear. Both the main effect of each factor and some of their interactive effects are included. The program was also structured to evaluate the influence of some external-to-tire conditions on the relationship of tire factors to treadwear. Part I describes the experimental design used to evaluate the effects on treadwear of generic tire type, aspect ratio, tread pattern (groove or void level), type of pattern (straight rib or block), and tread compound. Construction procedures and precautions used to obtain a valid and functional test method are included. Two guiding principles to be used in the data analyses of Parts II and III are discussed. These are the fractional groove and void concept, to characterize tread pattern geometry, and a demonstration of the equivalence of wear rate for identical compounds on whole tread or multi-section tread tires.

scholarly journals The relationship of left ventricular function to infarct surface area and volume

2009 ◽  
Vol 11 (S1) ◽  
Author(s):  
Al-Hakim Ramsey ◽  
Michael C Fishbein ◽  
Thomas O'Donnell ◽  
James Sayre ◽  
Kalyanam Shivkumar ◽  
...  
Keyword(s):  
Left Ventricular Function ◽  
Ventricular Function ◽  
Surface Area ◽  
Left Ventricular ◽  
Relationship Of ◽  
The Relationship ◽  
Area And Volume

Influence of Geometric Effects on the Aspect Ratio Optimization of Axial Turbine Bladings

1978 ◽  
Author(s):  
D. Rist
Keyword(s):  
Aspect Ratio ◽  
Absolute Size ◽  
Axial Turbine ◽  
Flow Channels ◽  
Best Value ◽  
Loss Coefficients ◽  
Relationship Of ◽  
The Relationship ◽  
Ratio Optimization ◽  
Geometric Effects

In order to illustrate optimization possibilities, the cooled axial turbine stage has been investigated regarding aerothermodynamics. Aims of the study are: (a) to estimate the range of the aspect ratio in which the aerothermodynamic efficiency, under comparable conditions, is not less than 0.2 percent under the best value in order to acquire tolerances for the best possible blading design when considering other design and aspects; (b) to acquire the relationship of the turbine loss coefficients and efficiencies to the absolute size of the flow channels, i.e. (also) to the hot gas flowrate. This is important for fair comparison of smaller and larger machines as well as for realistic judgments and prognosis pertaining especially to small units.

scholarly journals The Effect of Building Aspect Ratio on Energy Efficiency: A Case Study for Multi-Unit Residential Buildings in Canada

2021 ◽  
Author(s):  
Philip McKeen ◽  
Alan S. Fung
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Aspect Ratio ◽  
Surface Area ◽  
Energy Efficient ◽  
Residential Buildings ◽  
Building Area ◽  
The Relationship

This paper examines the energy consumption of varying aspect ratio in multi-unit residential buildings in Canadian cities. The aspect ratio of a building is one of the most important determinants of energy efficiency. It defines the building surface area by which heat is transferred between the interior and exterior environment. It also defines the amount of building area that is subject to solar gain. The extent to which this can be beneficial or detrimental depends on the aspect ratio and climate. This paper evaluates the relationship between the geometry of buildings and location to identify a design vernacular for energy-efficient designs across Canada.

The Relationship of the External Surface Area of Birds to Skin Surface Area and Body Mass

1978 ◽  
Vol 76 (1) ◽  
pp. 185-189 ◽  
Author(s):  
GLENN E. WALSBERG
Keyword(s):  
Heat Transfer ◽  
Surface Area ◽  
Body Mass ◽  
External Surface ◽  
Bird Species ◽  
Skin Surface ◽  
External Surface Area ◽  
Relationship Of ◽  
The Relationship

Data from 12 bird species reveal that skin surface area averages 23 % larger than the external surface area of the plumage. Use of skin surface area instead of the area of the external plumage surface may produce large errors in heat-transfer analyses.

scholarly journals Oxygen Consumption and Cell Size. A Comparison of the Rate of Oxygen Consumption of Diploid and Triploid Prepupae of Drosophila Melanogaster Meigen

1953 ◽  
Vol 30 (4) ◽  
pp. 475-491 ◽  
Author(s):  
C. ELLENBY
Keyword(s):  
Body Weight ◽  
Drosophila Melanogaster ◽  
Oxygen Consumption ◽  
Body Size ◽  
Surface Area ◽  
Cell Size ◽  
Rate Of Oxygen Consumption ◽  
The Mean ◽  
Relationship Of ◽  
The Relationship

1. The oxygen consumption and surface area of individual diploid and triploid prepupae of Drosophila melanogaster have been measured, the cells of triploid animals being larger. 2. The mean weights for the types examined are different but their ranges overlap almost completely. By covariance analysis it is shown that, after adjustment for difference in body size, there are no differences in the rates of oxygen consumption. It is concluded that, for these animals, cell size has no influence on the rate of oxygen consumption. 3. The relationships between body weight, surface area, and oxygen consumption have been further investigated. It is shown that, despite the greater inaccuracy of the method by which surface area is determined, oxygen consumption can be predicted more accurately from surface area than from body weight. 4. The results are discussed in relation to an earlier investigation of the oxygen consumption of other genotypes (Ellenby, 1945 a, b). Possible technical causes of certain differences between the two series of results in the relationship of oxygen consumption and body weight are explored; it is concluded, however, that they are almost certainly due to differences, not necessarily genetical, between the animals used in the two series.

Sign in / Sign up

Export Citation Format

Share Document