The Characteristic-Resistance Method for Grounded Semi-Infinite Grids

1981 ◽  
Vol 12 (1) ◽  
pp. 115-138 ◽  
Author(s):  
A. H. Zemanian
Keyword(s):  
Resistance Method ◽  
Infinite Grids ◽  
Characteristic Resistance

Total Tire Energy Loss Comparison by the Whole Tire Hysteresis and the Rolling Resistance Methods

1995 ◽  
Vol 23 (4) ◽  
pp. 256-265 ◽  
Author(s):  
P. S. Pillai
Keyword(s):  
Energy Loss ◽  
Rolling Resistance ◽  
Hysteresis Loss ◽  
Basic Premise ◽  
Resistance Method

Abstract Energy loss per hour in a tire traveling at 80 km/h was obtained for a number of tires of different sizes and makes from the respective whole tire hysteresis loss of each tire. This loss value was then compared to the corresponding rolling loss obtained from the 1.7 m dynamometer rolling resistance method. The two methods agreed, indicating that the basic premise of the rolling resistance hysteresis ratio relation is valid.

Extended electric power sources

2018 ◽  
Author(s):  
T.A. Konev ◽  
V.A. Kuzmin ◽  
E. Yu. Mutovina ◽  
R.D. Puzhaykin ◽  
Vladimir Salomatov
Keyword(s):  
Electric Power ◽  
Electric Current ◽  
Load Resistance ◽  
Active Power ◽  
Operating Voltage ◽  
Power Sources ◽  
Distributed Parameters ◽  
Analytical Expressions ◽  
Characteristic Resistance ◽  
Length Effects

Chemical sources of current are investigated as lines with distributed parameters. Analytical expressions are obtained for the voltage and active power values of the source at different distances from the beginning of the cell as well as dependences of the working voltage and active power on the source length. Effects of a reduction in the operating voltage and active power are due to the flow of electric current along the source during operation. The magnitude of these effects depends not only on the length of the source, but also on the ratio of characteristic resistance to the load resistance.<br>

scholarly journals Anion Conductance of Frog Muscle Membranes: One Channel, Two Kinds of pH Dependence

1973 ◽  
Vol 62 (3) ◽  
pp. 324-353 ◽  
Author(s):  
J. W. Woodbury ◽  
P. R. Miles
Keyword(s):  
Transmembrane Potential ◽  
Dissociation Constants ◽  
Ph Dependence ◽  
Complete Sequence ◽  
Minimum Size ◽  
Bathing Solution ◽  
Zinc Ions ◽  
Membrane Conductances ◽  
Anion Conductance ◽  
Characteristic Resistance

Anion conductance and permeability sequences were obtained for frog skeletal muscle membranes from the changes in characteristic resistance and transmembrane potential after the replacement of one anion by another in the bathing solution. Permeability and conductance sequences are the same. The conductance sequence at pH = 7.4 is Cl- Br- &gt; NO3- &gt; I- &gt; trichloroacetate ≥ benzoate &gt; valerate &gt; butyrate &gt; proprionate &gt; formate &gt; acetate ≥ lactate &gt; benzenesulfonate ≥ isethionate &gt; methylsulfonate &gt; glutamate ≥ cysteate. The anions are divided into two classes: (a) Chloride-like anions (Cl- through trichloroacetate) have membrane conductances that decrease as pH decreases. The last six members of the complete sequence are also chloride like. (b) Benzoate-like anions (benzoate through acetate) have conductances that increase as pH decreases. At pH = 6.7 zinc ions block Cl- and benzoate conductances with inhibitory dissociation constants of 0.12 and 0.16 mM, respectively. Chloride-like and benzoate-like anions probably use the same channels. The minimum size of the channel aperture is estimated as 5.5 x 6.5 Å from the dimensions of the largest permeating anions. A simple model of the channel qualitatively explains chloride-like and benzoate-like conductance sequences and their dependence on pH.

Study on the Aging Degree of Historical Silk by the Surface Resistance Method

2021 ◽  
Vol 57 (5) ◽  
pp. 408-416
Author(s):  
Hailiang Yang ◽  
Hailing Zheng ◽  
Liling Jia ◽  
Na Chen ◽  
Yang Zhou
Keyword(s):  
Surface Resistance ◽  
Resistance Method

Corrosion Measuring Probes for Marine Applications

CORROSION ◽  
1961 ◽  
Vol 17 (10) ◽  
pp. 485t-491t ◽  
Author(s):  
DAVID ROLLER ◽  
WILLARD R. SCOTT ◽  
HERMAN S. PREISER ◽  
FRANK E. COOK
Keyword(s):  
Electrical Resistance ◽  
Structural Members ◽  
Condenser Tube ◽  
Exterior Surface ◽  
Preliminary Testing ◽  
Resistance Method ◽  
Service Testing ◽  
Inlet Tube ◽  
Actual Operation ◽  
Marine Applications

Abstract This paper describes the design, fabrication and preliminary testing of several types of corrosion measuring probes developed for use on maritime vessels. The probes are part of a system utilizing the electrical resistance method for continuously monitoring corrosion during actual operation. One type of probe to be described is intended for monitoring corrosion on either the exterior surface of the hull or interior structural members in large compartment. Another probe has been developed for measuring condenser tube inlet (tube end) corrosion. A third probe has been developed for measuring corrosion in crevices and pipe lines. Both laboratory and simulated service testing has been carried out. Results of these tests and the effectiveness of the probes in measuring corrosive conditions on ships are discussed. 2.4.2

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