External forces are introduced herein, which may disturb the stable equilibrium and cause the body to tumble. The paper also introduces the concept of the coefficient of the stable equilibrium and proposes a formula for its calculation. Finally, a formula is set up to obtain the maximum value ...
A body immersed in a supersaturated fluid like carbonated water can accumulate a dynamic field of bubbles upon its surface. If the body is mobile, the attached bubbles can lift it upward against gravity, but a fluid-air interface can clean the surface of
Nevertheless, the definition based on the conservation property of the phonon collision operator has also a physical meaning and can be regarded as a measure of how fast the system is trying to approach the equilibrium. The plan of the paper is the following. In Section 2, the kinetic model...
AMPK has been reported to facilitate hypoxic pulmonary vasoconstriction but, paradoxically, its deficiency precipitates pulmonary hypertension. Here we show that AMPK-α1/α2 deficiency in smooth muscles promotes persistent pulmonary hypertension of the new-born. Accordingly, dual AMPK-α1/α2 deletion ...
Drilling operations tend to interfere with the temporary stress equilibriums that occur in the subsurface. By removing a relatively narrow diameter column of rock, which contributed to some extent to supporting multi-direction subsurface loads, drilling fundamentally alters the stress field around the ...
Without the foreign TDS sources, TDS can usually reflect the strength of water-rock equilibrium. The larger TDS, the more frequent exchange of δ18O and the larger drifting scope are. As indicated in Fig. 7b, the abundance of δ18O value happens along with the increasing strontium (as Sr...
The Dapai Fe polymetallic deposit in the SFDB is a typical example of Makeng-type Fe deposits but also has regional significance, whereby the stratified skarn Fe orebodies have overprinted the stratabound Pb–Zn–Cu mineralization followed by final fissure-filling by vein-disseminated Mo ...
[#paragraph3]The punctuated equilibrium hypothesis attempts to explain a curious feature of the fossil record—one that has been familiar to paleontologists for more than a century but has usually been ignored. Many species appear to remain unchanged in the fossil record for millions of years—a ...
A Kumar,B Ishwar 摘要: In this paper we have examined the linear stability of triangular equilibrium points in the photogravitational restricted three body problem when both primaries are triaxial rigid bodies, the bigger one an oblate spheroid and source of radiation. The orbits about the ...
The human body generally has more degrees of freedom than necessary for generating a given movement. According to the motor abundance principle, this redundancy is beneficial as it provides the central nervous system with flexibility and robustness for the generation of movements. Under the hypothesis...