نتایج جستجو برای: thermal dynamics

تعداد نتایج: 646040  

2003
Shigeo Maruyama Yuki Taniguchi Yasushi Shibuta

We have been studying the heat conduction along a single-walled carbon nanotube (SWNT) by the molecular dynamics method [1-3] with the simplified form [4] of Tersoff-Brenner bond order potential [5]. Our preliminary results showed that thermal conductivity was strongly dependent on the nanotube length for realistic length scale for device applications [2, 3]. Furthermore, we have reported the d...

Journal: :Applied optics 2015
Sonia Melle Oscar G Calderón Ana Egatz-Gómez E Cabrera-Granado F Carreño M A Antón

We experimentally study the temporal dynamics of amplitude-modulated laser beams propagating through a water dispersion of graphene oxide sheets in a fiber-to-fiber U-bench. Nonlinear refraction induced in the sample by thermal effects leads to both phase reversing of the transmitted signals and dynamic hysteresis in the input-output power curves. A theoretical model including beam propagation ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1382

‏‎the main purpose of this research was to:1.develop a coking model for thermal cracking of naphtha.2.study coke inhibition methods using different coke inhibitors.developing a coking model in naphtha cracking reactors requires a suitable model of the thermal cracking reactor based on a reliable kinetic model.to obtain reliable results all these models shall be solved simultaneously.for this pu...

2013
Ludovic Berthier Jorge Kurchan

The glass transition, extensively studied in dense fluids, polymers or colloids, corresponds to a marked evolution of equilibrium transport coefficients on a modest change of control parameter, such as temperature or pressure. A similar phenomenology is found in many systems evolving far from equilibrium, such as driven granular media, active and living matter. Although many theories compete to...

1997
H. Fujisaki S. Sano K. Nakagawa

The global phase structure of the D = 10 heterotic thermal string ensemble is studied through the infrared behaviour of the one-loop dual symmetric cosmological constant in proper reference to the thermal duality symmetry as well as the thermal stability of modular invariance within the general framework of the thermofield dynamics.

Journal: :Ecological applications : a publication of the Ecological Society of America 2009
Marissa L Baskett Steven D Gaines Roger M Nisbet

Given climate change, thermal stress-related mass coral-bleaching events present one of the greatest anthropogenic threats to coral reefs. While corals and their symbiotic algae may respond to future temperatures through genetic adaptation and shifts in community compositions, the climate may change too rapidly for coral response. To test this potential for response, here we develop a model of ...

Journal: :Molecular bioSystems 2016
Julian D Hegemann Christopher D Fage Shaozhou Zhu Klaus Harms Francesco Saverio Di Leva Ettore Novellino Luciana Marinelli Mohamed A Marahiel

Lasso peptides are fascinating natural products with a unique structural fold that can exhibit tremendous thermal stability. Here, we investigate factors responsible for the thermal stability of caulosegnin II. By employing X-ray crystallography, mutational analysis and molecular dynamics simulations, the ring residue proline 8 was proven to be crucial for thermal stability.

1997
S. Sano K. Nakagawa

The thermofield dynamics of the D = 10 heterotic thermal string theory is exemplified at any finite temperature through the infrared behaviour of the one-loop cosmological constant in proper reference to the thermal duality symmetry in association with the global phase structure of the thermal string ensemble.

2006
A. J. H. McGaughey M. I. Hussein E. S. Landry G. M. Hulbert

To elucidate the three-way relationship among a crystal’s structure, its phonon dispersion characteristics, and its thermal conductivity, an analysis is conducted on layered diatomic Lennard-Jones crystals with various mass ratios. Lattice dynamics theory and molecular dynamics simulations are used to predict the phonon dispersion curves and the thermal conductivity. The layered structure gener...

2006
Shigeo MARUYAMA Yasuhiro IGARASHI Yuki TANIGUCHI Junichiro SHIOMI

Heat transfer of single-walled carbon nanotubes (SWNTs) in practical situations is investigated using molecular dynamics (MD) simulations. Attenuation of the expected high thermal conductivity was simulated by mixing C isotope impurities to SWNTs or binding two SWNTs with different chirality with a junction structure in between. The heat transfer through the junction can be expressed with the t...

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