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Thermodynamics (3,456 Books)


Thermodynamics is the science of energy conversion involving heat and other forms of energy, most notably mechanical work. It studies and interrelates the macroscopic variables, such as temperature, volume and pressure, which describe physical, thermodynamic systems.

 
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Estimation of Flow Velocity for a Debris Flow Via the Two-phase Fl...

By: Z. Zheng; Y. Gao; P. Xu; S. Guo

Description: Department of Applied Mathematics, School of Mathematics and Physics, University of Science and Technology Beijing, Beijing, 100083, China. The two-phase fluid model is applied in this study to calculate the steady velocity of a debris flow along a channel bed. By using the momentum equations of the solid and liquid phases in the debris flow together with an empirical formula to describe the interaction between two phases, the steady velocities of the so...

Ahmed, A. and Kakar, H.: Aid effort begins at scene of Afghan landslides, New York Times, 3 May 2014.; Anderson, T. B. and Jackson, R.: Fluid mechanical description of fluidized beds: equations of motion, Ind. Eng. Chem. Fundam., 6, 527–539, 1967.; Bagnold, R. A.: Experiments on a gravity-free dispersion of large solid spheres in a Newtonian fluid under shear, P. Roy. Soc. Lond. A, 225, 49–63, 1954.; Brunelli, S.: Trasporto solido annuo dei corsi d'acqua in funzione dell...

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Estimation of Flow Velocity for a Debris Flow Via the Two-phase Fl...

By: P. Xu; Y. Gao; Z. Zheng; S. Guo

Description: School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 100083, China. The two-phase fluid model is applied in this study to calculate the steady velocity of a debris flow along a channel bed. By using the momentum equations of the solid and liquid phases in the debris flow together with an empirical formula to describe the interaction between two phases, the steady velocities of the solid and liquid phases are obta...

Anderson, T. B. and Jackson, R.: Fluid mechanical description of fluidized beds: equations of motion, Ind. Eng. Chem. Fundam., 6, 527–539, 1967.; Bagnold, R. A.: Experiments on a gravity-free dispersion of large solid spheres in a Newtonian fluid under shear, Proc. R. Soc. Lond. Ser. A, 225, 49–63, 1954.; Brunelli, S.: Trasporto solido annuo dei corsi d'acqua in funzione delle loro caratteristiche idrologiche e morfologiche, Tesi di Laurea, Università degli Studi di Pado...

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Metrics of Hurricane-ocean Interaction: Vertically-integrated or V...

By: J. F. Price

Description: Woods Hole Oceanographic Institution, Woods Hole, Massachusetts 02543, USA. The ocean thermal field is often represented in hurricane-ocean interaction by a metric termed upper Ocean Heat Content (OHC), the vertical integral of ocean temperature in excess of 26°C. High values of OHC have proven useful for identifying ocean regions that are especially favorable for hurricane intensification. Nevertheless, it is argued here that a more direct and robust m...

Allen, J. S. , et al.: Physical oceanography of continental shelves, Rev. Geophys. Space Phys., 21(5), 1149–1181, 1983.; Bingham, F. M.: Physical response of the coastal ocean to Hurricane Isabel near landfall, Ocean Sci., 3, 159–171, 2007.; Bender, M. A., Ginis, I., and Kurihara, Y.: Numerical simulations of tropical cyclone-ocean interaction with a high resolution coupled model, J. Geophys. Res., 98, 23245–23263, 1993.; Bender, M., Ginis, I., Tuleya, R., Thomas, B., an...

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Transport Processes at Quartz–water Interfaces: Constraints from H...

By: J. Renner; N. Doltsinis; K. Klevakina; W. Adeagbo

Description: Institut für Geologie, Mineralogie und Geophysik, Ruhr-Universität Bochum, 44780 Bochum, Germany. We performed hydrothermal annealing experiments on quartzite samples at temperatures of 392 to 568 °C and fluid pressures of 63 to 399 MPa for up to 120 h, during which hydrothermal grooves developed on the free surfaces of the samples. An analysis of surface topology and groove characteristics with an atomic force microscope revealed a range of surface fea...

Bailey, G. L. J. and Watkins, H. C.: Surface tensions in the system solid copper-molten lead, Proc. Phys. Soc. B, 63, 350, 1950.; Adeagbo, W. A., Doltsinis, N. L., Klevakina, K., and Renner, J.: Transport processes at α-quartz–water interfaces: Insights from first-principles molecular dynamics simulations, Chem. Phys. Chem., 9, 994–1002, 2008.; Bickmore, B. R., Wheeler, J. C., Bates, B., Nagy, K. L., and Eggett, D. L.: Reaction pathways for quartz dissolution determined ...

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Georgia Cogeneration of Heat and Power Generation Methods of Exami...

By: K. McHedlidze
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Thermophysical Properties of Ethane

By: Daniel G. Friend

Technical Reference Publication

Excerpt: Need for This Correlation. Because ethane is both an industrially important fluid and the second member of the vitally interesting alkaline series, we have felt it necessary to examine the newly available thermophysical property data and to re-evaluate the older data to produce more useful and accurate correlations. We have studied the primary homologue, methane, in previous publications; this work reports a parallel study for ethane, and the form of the correla...

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Classical and Quantumchaos

By: Predrag Cvitanovi

Mathematics document containing theorems and formulas.

Excerpt: Averaging; Dynamical averaging; Evolution operators; Resume; and Exercises.

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Classical and Quantumchaos

By: Roberto Artuso

Physics Literature

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The Solubility of Nitrogen C1072And Air in Liquids

By: Rubin Battino

Technical Reference Publication

Introduction: In this review, we are concerned with the solubility of nitrogen and air in most liquids for which data are available and over all temperatures and pressures. The fluids considered include pure liquids, organic and inorganic solvents, mixtures, biological fluids, and miscellaneous fluids. We did not include molten salts, alloys, metals, glasses, and slags or polymeric materials. For the systems included, there is a considerable literature at elevated pressures.

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Evaluated Gas Phase Basicities and Proton Affinities Of

By: Sharon G. Lias

Technical Reference Publication

Introduction: The gas phase basicity and proton affinity of a molecule, M, are both defined in terms of the hypothetical reaction: The gas phase basicity is the negative of the free energy change associated with this reaction, while the proton affinity is the negative of the corresponding enthalpy change. Proton transfer reactions are of considerable importance in chemistry. Acid-base reactions have been studied extensively in solution for decades, but it is only in the ...

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Evaluation of Solubility Data Sf the System C02-H28 from 273 K to ...

By: Rosa Crovetto

Technical Reference Publication

Introduction: The solubility of C02 in H20 is of great importance in many different fields. At temperatures between 273 and 315 K it plays an essential role in biochemistry and biotechnology. At higher temperatures it becomes important to geo-chemistry, power plant water, chemistry, industrial steam water cycling, and engineering design. Also, a consistent set of evaluated data can be used as a test for predictions from nodes of aqueous solution...

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The Solubility of Some Sparingly Soluble Salts of Zinc and Cadmium

By: H. Lawrence Clever

Technical Reference Publication

Introduction: Argon plasmas are widely used for fundamental plasma spectroscopy studies as well as for numerous applications involving technical plasmas, such as gas lasers and spectrochemical investigations with inductively coupled plasmas (ICPs). Thus the requisite spectroscopic data for Ar I and 11-principally atomic transition probabilities and lifetimes of various energy levels-haves had been the subject of numerous investigations. Nevertheless...

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Nasa Langley Scientific and Technical Information Output2002: by S...

Description: This document contains information regarding topics such as Space Sciences (General), Lunar and Planetary Science and Exploration, and Category 93 Space Radiation...

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Temperature Dependence of Physical-Chemical Properties of Selected...

By: Wan-Ying Shiu

Technical Reference Publication

Introduction: It has long been recognized that key physical-chemical properties which control the fare of organic chemicals in the environment, especially in air-water systems, are: aqueous solubility, vapor pressure, and Henry's law constant or the air-water partition coefficient. Values of these properties are generally reported in the literature at ambient or standard temperatures of 20 or 25 C. Environmentally important temperatures, however, vary considerably, thus ...

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World Health Organization : Year 1996 ; World Health Organization,...

By: World Health Organization

Medical Reference Publication

INTRODUCTION In 1975, the WHO Expert Committee on Specifications for Pharmaceutical Preparations recommended General guidelines for the establishment, maintenance, and distribution of chemical reference subst&ces.l At that time these general guidelines were aimed at fostering greater collaboration and harmonization among various national and regional authorities who are responsible for collections of chemical reference substances. This concept is still relevant. The guid...

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Evaluated Gas Phase Basicities and Proton Affinities of Molecules ...

Technical Reference Publication

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The International System of Units

By: Barry N. Taylor

Physics Literature

Foreword: The International System of Units, universally abbreviated SI, is the modern metric system of measurement. Long the dominant system used in science, the SI is rapidly becoming the dominant measurement system used in international commerce. In recognition of this fact and the increasing global nature of the marketplace, the Omnibus Trade and Competitiveness Act of 1988, which changed the name of the National Bureau of Standards (NBS) to the National Institute of...

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