Condensed Matter

1401 Submissions

[4] viXra:1401.0202 [pdf] submitted on 2014-01-27 18:59:05

D(H)-Cluster Langevin Code and Some Calculated Results

Authors: Akito Takahashi, Daniel Rocha
Comments: Pages.

A PC code based on the quantum mechanical Langevin equation to simulate dynamic motion of deuterium (or hydrogen) cluster with three dimensional symmetry has been developed for studying very fast condensation or oscillation behavior in time-step of 0.001 as (1.0E-21 second) for overall time interval of several fs to 500 fs. Some numerical results are typically shown for two cases of condensation behavior; 1) reaching to ground state oscillations as for D(H)2+ ion molecule, dμd muonic molecule, 3D+ ionic molecule, 6D/OSC and others, and 2) making fast collapse to get in the strong/weak nuclear interaction range of d-d (or p-p) inter-nuclear distance as for 4D(H)/TSC, 6D(H)/Rhombic-dodecahedron, 8D(H)/Rhombic-dodecahedron and 20D(H)/Rhombic-triacontahedron. Keywords: PC code, D(H)-cluster dynamics, ground state oscillation, fast collapse, 4D(H)/TSC, 6D(H)-Rhombic-dodecahedron, larger clusters, nuclear interaction, simulation of cold fusion
Category: Condensed Matter

[3] viXra:1401.0098 [pdf] replaced on 2014-01-18 05:25:23

Further Insight Relative to Cavity Radiation: A Thought Experiment Refuting Kirchhoff's Law

Authors: Pierre-Marie Robitaille
Comments: 3 Pages. As published on January 18th, 2014 - Progress in Physics, 2014, 10(1), 38-40.

Kirchhoff's law of thermal emission demands that all cavities contain blackbody, or normal, radiation which is dependent solely on the temperature and the frequency of observation, while remaining independent of the nature of the enclosure. For over 150 years, this law has stood as a great pillar for those who believe that gaseous stars could emit a blackbody spectrum. However, it is well-known that, under laboratory conditions, gases emit in bands and cannot produce a thermal spectrum. Furthermore, all laboratory blackbodies are constructed from nearly ideal absorbers. This fact strongly opposes the validity of Kirchhoff's formulation. Clearly, if Kirchhoff had been correct, then laboratory blackbodies could be constructed of any arbitrary material. Through the use of two cavities in temperature equilibrium with one another, a thought experiment is presented herein which soundly refutes Kirchhoff's law of thermal emission.
Category: Condensed Matter

[2] viXra:1401.0069 [pdf] submitted on 2014-01-09 06:45:54

Microwave-Assisted Synthesis and Characterization of Perovskite Oxides

Authors: Jesus Prado-Gonjal, Rainer Schmidt, Emilio Morán
Comments: 27 Pages.

The use of microwave irradiation is a promising alternative heat source for the synthesis of inorganic materials such as perovskite oxides. The method offers massive energy and time savings as compared to the traditional ceramic method. In this work we review the basic principles of the microwave heating mechanism based on interactions between dipoles in the material and the electromagnetic microwave. Furthermore, we comment on and classify all different sub-types of microwave synthesis such as solid-state microwave and microwave assisted hydrothermal synthesis. In the experimental part of this work we present a large range of materials that were synthesized in our laboratories by one of the microwave techniques, where such materials include superconducting, ferromagnetic, ferroelectric, dielectric and multiferroic perovskite systems.
Category: Condensed Matter

[1] viXra:1401.0049 [pdf] replaced on 2014-01-14 12:08:59

Bose-Einstein Condensate and Gravitational Shielding

Authors: Fran De Aquino
Comments: 3 Pages.

In this work we show that when possible transform some types of substance into a Bose-Einstein condensate at room temperature, which exists long enough to be used in practice then will be possible to use these substances in order to create efficient Gravitational Shieldings.
Category: Condensed Matter