scholarly journals Crucial role of sidewalls in velocity distributions in quasi-two-dimensional granular gases

2004 ◽  
Vol 70 (4) ◽  
Author(s):  
J. S. van Zon ◽  
J. Kreft ◽  
Daniel I. Goldman ◽  
D. Miracle ◽  
J. B. Swift ◽  
...  
Keyword(s):  
Crucial Role ◽  
Granular Gases ◽  
Two Dimensional

MODELS OF FREE COOLING GRANULAR GASES

2001 ◽  
Vol 04 (04) ◽  
pp. 321-331 ◽  
Author(s):  
UMBERTO MARINI BETTOLO MARCONI ◽  
ANDREA BALDASSARRI ◽  
ANDREA PUGLISI
Keyword(s):  
Kinetic Energy ◽  
Lattice Model ◽  
Topological Defects ◽  
Total Momentum ◽  
Granular Gases ◽  
Two Dimensional ◽  
Spatial Structures ◽  
Free Evolution ◽  
Free Cooling

We consider the free evolution of systems of granular particles whose dynamics is characterized by a collision rule which preserves the total momentum, but dissipates the kinetic energy. Starting from an inelastic version of a minimal model proposed by Ulam for a gas of Maxwell molecules, we introduce a new lattice model aimed at investigating the role of dynamical correlations and the onset of spatial order induced by the inelasticity of the interactions. We study, in one- and two-dimensional cases, the velocity distribution, the decay of the energy, the formation of spatial structures and topological defects. Finally, we relate our findings to other models known in other fields.

The Role of Covalent and Metallic Radii in Covalent Metallic Superlattices and Two-Dimensional Isoelectronic Alloys

1987 ◽  
Vol 102 ◽  
Author(s):  
Raphael Tsu
Keyword(s):  
Electrical Properties ◽  
Crucial Role ◽  
Two Dimensional ◽  
Ionic Radii ◽  
Wide Range ◽  
Ordered Layers

ABSTRACTCovalent metallic superlattices and isoelectronic alloys consist of ordered layers of, for example, Si/AlP, Ge/GaAs, and Si/Sb,etc. Depending on design, wide range of electrical properties can result. The covalent, metallic and ionic radii play a crucial role in the stoichiometry of epitaxial systems.

scholarly journals Synchronization of flexible sheets

2011 ◽  
Vol 674 ◽  
pp. 163-173 ◽  
Author(s):  
GWYNN J. ELFRING ◽  
ERIC LAUGA
Keyword(s):  
Energy Dissipation ◽  
Symmetry Breaking ◽  
Crucial Role ◽  
Physical Mechanism ◽  
Fluid Layer ◽  
Two Dimensional ◽  
Dimensional Model ◽  
Close Proximity ◽  
Two Dimensional Model

When swimming in close proximity, some microorganisms such as spermatozoa synchronize their flagella. Previous work on swimming sheets showed that such synchronization requires a geometrical asymmetry in the flagellar waveforms. Here we inquire about a physical mechanism responsible for such symmetry breaking in nature. Using a two-dimensional model, we demonstrate that flexible sheets with symmetric internal forcing deform when interacting with each other via a thin fluid layer in such a way as to systematically break the overall waveform symmetry, thereby always evolving to an in-phase conformation where energy dissipation is minimized. This dynamics is shown to be mathematically equivalent to that obtained for prescribed waveforms in viscoelastic fluids, emphasizing the crucial role of elasticity in symmetry breaking and synchronization.

Epitaxial YBa2Cu3O7-8 films : Crucial role of growth-induced linear defects in microwave properties

2001 ◽  
Vol 11 (PR11) ◽  
pp. Pr11-47-Pr11-52
Author(s):  
V. M. Pan ◽  
V. S. Flis ◽  
V. A. Komashko ◽  
O. G. Plys ◽  
C. G. Tretiatchenko ◽  
...  
Keyword(s):  
Crucial Role ◽  
Microwave Properties ◽  
Linear Defects

ANALISIS YURIDIS PUTUSAN PENGADILAN NEGERI BLORA TENTANG DUALISME KEPENGURUSAN YAYASAN PENDIDIKAN ISLAM KARTAYUDA YANG AKTA PENDIRIANNYA DIBUAT OLEH DAN DIHADAPAN NOTARIS (Studi Kasus Putusan Perkara PN Blora No. 34/Pdt.G/2015/PN.Bla)

Jurnal Akta ◽  
2017 ◽  
Vol 4 (3) ◽  
pp. 463
Author(s):  
Muslim Ansori ◽  
Akhmad Khisni
Keyword(s):  
Private Schools ◽  
Education System ◽  
Crucial Role ◽  
The State ◽  
Educational Institutions ◽  
Legal Entity ◽  
Non Profit ◽  
The Right

With the enactment of the Education System Act no 20 of 2003 (better known as the Sisdiknas Act), the State has determined that educational institutions should have a legal umbrella in the form of a legal entity, or better known as the Legal Entity Education. As a non-profit organization, the Foundation is the right legal entity that becomes a place for educational institutions, especially private schools. Therefore, of course, Notary has a very crucial role in making notary deed in the form of establishment and deed of change, such as example how in making the right basic budget and not multi interpresatasi for stake holders in the foundation. Therefore, the role of function and authority of the organ of the foundation must be clearly stated in the articles of association, so as not to cause a dispute in the future.KEYWORDS: Notaries, Foundation, Organ Foundation,

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