First law of thermodynamics and Friedmann-like equations in braneworld cosmology

Xian-Hui Ge

doi:10.1016/j.physletb.2007.05.055

First law of thermodynamics and Friedmann-like equations in braneworld cosmology

Physics Letters B ◽

10.1016/j.physletb.2007.05.055 ◽

2007 ◽

Vol 651 (1) ◽

pp. 49-53 ◽

Cited By ~ 48

Author(s):

Xian-Hui Ge

Keyword(s):

Braneworld Cosmology ◽

First Law Of Thermodynamics

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FIRST LAW OF THERMODYNAMICS

A-to-Z Guide to Thermodynamics Heat and Mass Transfer and Fluids Engineering ◽

10.1615/atoz.f.firlawofthe ◽

2006 ◽

Vol f ◽

Keyword(s):

First Law Of Thermodynamics

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Conservation of Energy Readings on the Origins of the First Law of Thermodynamics. Part I

Educación Química ◽

10.22201/fq.18708404e.2008.2.25806 ◽

2011 ◽

Vol 19 (2) ◽

pp. 159 ◽

Cited By ~ 1

Author(s):

Jaime Wisniak

Keyword(s):

Conservation Of Energy ◽

First Law Of Thermodynamics

Los conceptos de masa, movimiento y energía han ocupado la atención de filósofos y científicos desde tiempos ancestrales. Aun cuando hubo muchos que creían que la masa y la energía se conservaban, debieron pasar muchos años hasta que la primera ley de la termodinámica adquiriera su forma actual. La ley de conservación de la energía es uno de los principios fundamentales del mundo físico como lo entendemos hoy. Negar la posibilidad del movimiento perpetuo le coloca un límite superior a la utilización de la energía y a la eficiencia termodinámica de un proceso.

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Application of the First Law of Thermodynamics to Piston Engines

Russian Engineering Research ◽

10.3103/s1068798x20070114 ◽

2020 ◽

Vol 40 (7) ◽

pp. 527-530

Author(s):

A. F. Dorokhov ◽

P. A. Dorokhov

Keyword(s):

First Law Of Thermodynamics

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Dynamic Characteristic Analysis of New Pneumatic Bending Joint

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.271-272.1742 ◽

2012 ◽

Vol 271-272 ◽

pp. 1742-1749

Author(s):

Peng Cheng Huang ◽

Qing Hua Yang ◽

Guan Jun Bao ◽

Li Bin Zhang

Keyword(s):

Response Time ◽

Dynamic Characteristic ◽

Simulation Analysis ◽

Characteristic Analysis ◽

Pneumatic Actuators ◽

Bending Performance ◽

First Law Of Thermodynamics ◽

Existing Problems ◽

Joint Damping ◽

New Type

Aimed at existing problems on the bending performance of pneumatic bending joint, a new type of pneumatic bending joint is proposed in this paper. Double flexible pneumatic actuators are used as actuating drivers. Based on the first law of thermodynamics and the joint dynamic equation, the angle dynamic model is established and analyzed. Moreover simplified model is proposed. Meanwhile, its dynamic characteristic is analyzed through simulation analysis. The simulation suggests the following results: in the gas-filled phase, the joint’s pressure response time is about 10ms; while it is about 60ms in the gas-escape phase; and the angle response time of joint is 10 to 20ms. When the joint damping coefficient is increasing, this value will also increase.

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