Determination of appearance potentials by the critical slope method

Vacuum ◽  
1965 ◽  
Vol 15 (2) ◽  
pp. 87
Keyword(s):  
1964 ◽  
Vol 41 (9) ◽  
pp. 2947-2948 ◽  
Author(s):  
Ariel F. Barfield ◽  
Austin L. Wahrhaftig
Keyword(s):  

1987 ◽  
Vol 113 (2) ◽  
pp. 182-184
Author(s):  
Waldemar Hachich ◽  
Mario Rui Feliciani ◽  
Evandro de Avila Gimenes
Keyword(s):  

1972 ◽  
Vol 50 (8) ◽  
pp. 1144-1148 ◽  
Author(s):  
A. O. Gübeli ◽  
P. A. Côté

The slope method has been applied to the determination of the cumulative formation constants of [Formula: see text] and Ag(OH)CN− and to the measure of the solubility product of AgCN, in 1 M NaClO4, at 25 °C.


1960 ◽  
Vol 13 (2) ◽  
pp. 347 ◽  
Author(s):  
TH Blewitt ◽  
RR Coltman ◽  
CE Klabunde

Activation energies for the annealing of copper and aluminium following reactor bombardment near 4 OK have been measured in the range from 10 to 40 OK. Both the change in slope method and the isothermal technique method were utilized with the assumption that a constant activation energy existed. Computations of the number of jumps involved from the measured activation energy result in an impossibly small number. It is obvious that the method for determination of the activation energies is not applicable, probably because of the non-uniqueness of the activation energy.


Geophysics ◽  
1977 ◽  
Vol 42 (7) ◽  
pp. 1462-1467 ◽  
Author(s):  
Jay Gopal Saha

The error in depth determination due to the thin plate approximation of a two‐dimensional vertical fault is investigated by the maximum slope method and the traditional [Formula: see text] method. We show here that although the gravity curves for thin and thick faults are not greatly different, faults with large throws have significant percentage errors in the depth to the central plane which warrant attention in precision interpretation. When the ratio of the throw of the fault to its mid‐depth varies from 1.5 to 1.9, the percentage error in depth increases from 10 to more than 16 percent. The maximum slope method for determination of depth gives larger percentage errors compared to [Formula: see text] measures. When the fault throw is large, a gradient method may be used to find the principal parameters of a two‐dimensional vertical fault. The method is theoretically free from any ambiguity and has other advantages which may facilitate precise interpretation. The thin plate approximation should be avoided in such cases.


2019 ◽  
Vol 48 (No. 9) ◽  
pp. 408-414
Author(s):  
S. Navrátil ◽  
A. Skoupý

The paper deals with the determination of sliding resistance at dragging timber by horse and with the calculation of critical slope inclination in situations of threatening spontaneous movement of timber. These are reasons why the horse should not be used in such conditions. Different conditions of skidding trail surface are considered in winter and summer periods of the year. Sliding resistance was determined by using an original methodology in which the acting forces are measured by strain gauges directly at the timber dragging by horse. It was found out that the coefficient of sliding resistance cannot be determined as one concrete figure but rather as an interval of values since it is considerably variable with the character of terrain and character of the surface of dragged log. This is why the critical slope inclination should be determined in a certain interval, too, in order to include the measure of acceptable risk. The measure of acceptable risk is defined by using an auxiliary coefficient of safety whose value should range in the interval from 0.5 to 1.0 as a value indirectly proportional to the magnitude of sliding resistance coefficient.


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