منابع مشابه
Disturbing the Black Hole
I describe some examples in support of the conjecture that the horizon area of a near equilibrium black hole is an adiabatic invariant. These include a Schwarzschild black hole perturbed by quasistatic scalar fields (which may be minimally or nonminimally coupled to curvature), a Kerr black under the influence of scalar radiation at the superradiance treshold, and a Reissner–Nordström black hol...
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Inviscid spatially compact vortices (such as the Rankine vortex) have discrete Kelvin modes. For these modes, the critical radius, at which the rotation frequency of the wave matches the angular velocity of the fluid, lies outside the vortex core. When such a vortex is not perfectly compact, but has a weak vorticity distribution beyond the core, these Kelvin disturbances are singular at the cri...
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cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...
Perception of disturbing sounds
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The strain-specific modifier Ssm1 is responsible for the straindependent methylation of particular E. coli gpt-containing transgenic sequences.Here,we identifySsm1as theKRAB-zinc finger (ZF) gene 2610305D13Rik located ondistal chromosome4.Ssm1b is amember of a gene family with an unusual array of three ZFs. Ssm1 family members in C57BL/6 (B6) and DBA/2 (D2) mice have various amino acid changes ...
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ژورنال
عنوان ژورنال: Economic and social changes: facts, trends, forecast / Экономические и социальные перемены: факты, тенденции, прогноз
سال: 2018
ISSN: 2307-0331,2312-9824
DOI: 10.15838/esc.2018.3.57.1