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966 Aktuelle Fachpublikationen zum Thema temperature

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[Report] Chirality density wave of the “hidden order” phase in URu2Si2

20.03.2015 | H.-H. Kung; R. E. Baumbach; E. D. Bauer; V. K. Thorsmølle; W.-L. Zhang; K. Haule; J. A. Mydosh; G. Blumberg, Science , 2015

A second-order phase transition in a physical system is associated with the emergence of an “order parameter” and a spontaneous symmetry breaking. The heavy fermion superconductor URu2Si2 has a “hidden order” (HO) phase below the temperature of 17.5 kelvin; the symmetry of the associated order ...

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Energies, Vol. 8, Pages 2197-2210: Experimental Analysis of Cool Traditional Solar Shading Systems for Residential Buildings

20.03.2015 | Pisello, Anna Laura, Energies, 2015

In recent years there has been a growing interest in the development and thermal-energy analysis of passive solutions for reducing building cooling needs and thus improving indoor thermal comfort conditions. In this view, several studies were carried out about cool roofs and cool coatings, ...

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[Report] Experimental ground-state combination differences of CH5+

20.03.2015 | Oskar Asvany; Koichi M. T. Yamada; Sandra Brünken; Alexey Potapov; Stephan Schlemmer, Science , 2015

Protonation of methane (CH4), a rather rigid molecule well described by quantum mechanics, produces CH5+, a prototypical floppy molecule that has eluded definitive spectroscopic description. Experimental measurement of high-resolution spectra of pure CH5+ samples poses a formidable challenge. By ...

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Dynamical evidence for causality between galactic cosmic rays and interannual variation in global temperature [Earth, Atmospheric, and Planetary Sciences]

17.03.2015 | Anastasios A. Tsonis; Ethan R. Deyle; Robert M. May; George Sugihara; Kyle Swanson; Joshua D. Verbeten; Geli Wang, Proceedings of the National Academy of Sciences current issue, 2015

As early as 1959, it was hypothesized that an indirect link between solar activity and climate could be mediated by mechanisms controlling the flux of galactic cosmic rays (CR) [Ney ER (1959) Nature 183:451–452]. Although the connection between CR and climate remains controversial, a significant ...

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Energies, Vol. 8, Pages 2097-2124: Thermo-Economic Evaluation of Organic Rankine Cycles for Geothermal Power Generation Using Zeotropic Mixtures

17.03.2015 | Heberle, Florian ; Brüggemann, Dieter, Energies, 2015

We present a thermo-economic evaluation of binary power plants based on the Organic Rankine Cycle (ORC) for geothermal power generation. The focus of this study is to analyse if an efficiency increase by using zeotropic mixtures as working fluid overcompensates additional requirements regarding ...

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Temperature Dependent Mechanical Property of PZT Film: An Investigation by Nanoindentation

13.03.2015 | Yingwei Li et al., PLoS ONE, 2015

by Yingwei Li, Shangming Feng, Wenping Wu, Faxin Li Load-depth curves of an unpoled Lead Zirconate Titanate (PZT) film composite as a function of temperature were measured by nanoindentation technique. Its reduce modulus and hardness were calculated by the typical Oliver-Pharr method. Then the ...

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Hurricane Risk Variability along the Gulf of Mexico Coastline

13.03.2015 | Jill C. Trepanier et al., PLoS ONE, 2015

by Jill C. Trepanier, Kelsey N. Ellis, Clay S. Tucker Hurricane risk characteristics are examined across the U. S. Gulf of Mexico coastline using a hexagonal tessellation. Using an extreme value model, parameters are collected representing the rate or λ (frequency), the scale or σ (range), and ...

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[Report] Coulomb crystallization of highly charged ions

13.03.2015 | L. Schmöger; O. O. Versolato; M. Schwarz; M. Kohnen; A. Windberger; B. Piest; S. Feuchtenbeiner; J. Pedregosa-Gutier ..., Science , 2015

Control over the motional degrees of freedom of atoms, ions, and molecules in a field-free environment enables unrivalled measurement accuracies but has yet to be applied to highly charged ions (HCIs), which are of particular interest to future atomic clock designs and searches for physics beyond ...

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Energies, Vol. 8, Pages 1917-1935: Heat Recovery from High Temperature Slags: A Review of Chemical Methods

12.03.2015 | Sun, Yongqi ; Zhang, Zuotai ; Liu, Lili ; Wang, Xidong, Energies, 2015

Waste heat recovery from high temperature slags represents the latest potential way to remarkably reduce the energy consumption and CO2 emissions of the steel industry. The molten slags, in the temperature range of 1723–1923 K, carry large amounts of high quality energy. However, the heat ...

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Energies, Vol. 8, Pages 1958-1974: Slit Wall and Heat Transfer Effect on the Taylor Vortex Flow

12.03.2015 | Liu, Dong ; Wang, Ying-Ze ; Shi, Wei-Dong ; Kim, Hyoung-Bum ; Tang, Ai-Kun, Energies, 2015

The Taylor vortex flow in the plain model with a constant temperature gradient effect was studied by experimental measurement, and the preliminary features of Taylor vortex flow affected by heat transfer process were obtained. This flow field in the plain model was also studied by numerical ...

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