The Current-Voltage Relationships Due to Transit-Time Effects in an Intrinsic Semiconductor

1975 ◽  
Vol 12 (1) ◽  
pp. 37-43
Author(s):  
Y. W. Lam
Keyword(s):  
Transit Time ◽  
General Equation ◽  
Practical Importance ◽  
Small Signal ◽  
Time Effects ◽  
Saturation Velocity ◽  
Intrinsic Semiconductor ◽  
Current Voltage ◽  
Terminal Voltage ◽  
Special Case

The analysis is based on the small-signal theory whereby all variables are linearized to a d.c. component and an a.c. component at the fundamental frequency. A general equation is then obtained for the a.c. terminal voltage in terms of the a.c. current and transit time. A special case of practical importance is also considered in which the electric field throughout the semiconductor is sufficiently high so that carriers move at their saturation velocity.

Transit-time effects in saturated absorption resonances

1986 ◽  
Vol 47 (12) ◽  
pp. 2025-2039 ◽  
Author(s):  
A. Titov ◽  
Yu. Malyshev ◽  
Yu. Rastorguev
Keyword(s):  
Transit Time ◽  
Time Effects ◽  
Saturated Absorption

scholarly journals SKUTKI PRAWNE ORZECZEŃ TRYBUNAŁU KONSTYTUCYJNEGO W UJĘCIU CZASOWYM

2017 ◽  
Vol 3 (2) ◽  
pp. 313
Author(s):  
Roman Trzaskowski
Keyword(s):  
Supreme Court ◽  
Practical Importance ◽  
Civil Law ◽  
Main Question ◽  
Time Effects ◽  
Area Of Interest ◽  
Retroactive Effect ◽  
The Supreme Court ◽  
Constitutional Tribunal ◽  
The Common

Effects of Constitutional Tribunal’s Judgments in the Time PerspectiveSummaryThe problem of the time effects of the Constitutional Tribunal’s rulings remain within the area of interest of both constitutional and civil law scholars. It is widely discussed because of its enormous practical importance: more and more often the common courts and the Supreme Court have to deal with the laws which have been declared unconstitutional.The main question is whether the courts should apply the unconstitutional law while deciding on a case in which legally significant events had taken place before the law was declared null and void.The Polish Constitution does not give a clear answer to this question. The most important provisions seem to be contradictory, which makes it possible to use them as arguments for opposing positions.The scholars’ opinions differ significantly: some of them, followed by the Supreme Court, accept the so-called „retrospective” effect (the unconstitutional law cannot by applied), the others, together with the Constitutional Tribunal, take the opposite view. A few try to find a compromise.The proposition presented in this paper is to be classified as belonging to the third group.Indeed it seems that there is a need for a flexible approach. The time effects of a ruling shall be expressly stated by the Constitutional Tribunal. When the Tribunal fails to do so, the common courts have to asses themselves the rulings’ effects, being guided, among other things, by the principles of the civil law. There are strong arguments that the Constitution seems to favor the retroactive effect, yet it is not decisive. There are certainly situations, where a prospecitve effect shall be accepted: ultimately it is a question of balancing different constitutional and civil law values. 

Isochronous anharmonic oscillations

1998 ◽  
Vol 76 (8) ◽  
pp. 645-657 ◽  
Author(s):  
Pirooz Mohazzabi
Keyword(s):  
General Equation ◽  
Vertical Plane ◽  
One Dimensional ◽  
One To One ◽  
Anharmonic Oscillations ◽  
Special Case

The problem of a particle oscillating without friction on a curve in a vertical plane (referred to as a vertical curve) is addressed. It is shown that there are infinitely many asymmetric concave vertical curves on which oscillations of a particle remain isochronous. The general equation of these curves is derived, and a one-to-one correspondence between these curves and one-dimensional potentials is established. The results are compared with the existing literature, and an interesting nontrivial special case is discussed. Some issues regarding interpretation of the results in the context of action and angle variables are also addressed. PACS No. 03.20

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