Results 41 to 50 of about 7,601,055 (365)
Metals, 2020 This contribution reports the effects of an ultrasonic-vibration assisted ball burnishing process on the topological descriptors of nickel-based alloy Udimet®720. This material is of high interest for the transportation industry, and specifically for the
Ramón Jerez-Mesa +3 more
doaj +1 more source
Surface states of topological insulators [PDF]
Physical Review B, 2012 We develop an effective bulk model with a topological boundary condition to study the surface states of topological insulators. We find that the Dirac point energy, the band curvature and the spin texture of surface states are crystal face-dependent. For a given face on a sphere, the Dirac point energy is determined by the bulk physics that breaks p-h ...
Kane, Charles L +2 more
openaire +4 more sources
FRACTAL STRUCTURE OF TITANIUM NITRITE DEPOSITED ON STAINLESS STEEL SUBSTRATE
Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2014 On the basis of images obtained using scanning tunneling microscope, it was shown that the fractal dimension can be considered as some universal surface characteristic of the titanium nitrite, deposited on stainless steel.
Yu..V. Brylkin
doaj +1 more source
Electrically Tunable Quantum Spin Hall State in Topological Crystalline Insulator Thin films [PDF]
, 2015 Based on a combination of $k \cdot p$ theory, band topology analysis and electronic structure calculations, we predict the (111) thin films of the SnTe class of three-dimensional (3D) topological crystalline insulators realize the quantum spin Hall phase
Fu, Liang, Liu, Junwei
core +2 more sources
On the topology of untrapped surfaces [PDF]
Classical and Quantum Gravity, 2009 Recently a simple proof of the generalizations of Hawking's black hole topology theorem and its application to topological black holes for higher dimensional ($n\geq 4$) spacetimes was given \cite{rnew}. By applying the associated new line of argument it is proven here that strictly stable untrapped surfaces do possess exactly the same topological ...
openaire +4 more sources
RELATION BETWEEN FRACTAL DIMENSION AND SURFACE ROUGHNESS FOR THE COPPER SAMPLES [PDF]
Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2013 Microscopic characteristics of copper surfaces with different roughness were produced using scanning tunnel microscope and fractal analysis.
Yu.V. Brylkin, A.L. Kusov
doaj
Multi-legged adaptable crawler capable of maintaining a constant pose locomotion over rugged terrain
Nihon Kikai Gakkai ronbunshu, 2018 In this paper, we introduce practical design and hardware implementation issues of an adaptable crawler mechanism for a mobile robot, enabling it to maintaining its constant desired pose when moving.
Shu TAKAIRA +2 more
doaj +1 more source
The change of Fermi surface topology in Bi2Sr2CaCu2O8 with doping [PDF]
, 2005 We report the observation of a change in Fermi surface topology of Bi2Sr2CaCu2O8 with doping. By collecting high statistics ARPES data from moderately and highly overdoped samples and dividing the data by the Fermi function, we answer a long standing ...
A. Kaminski +11 more
core +2 more sources
Applied Sciences, 2019 In the present study, nickel phosphorous alloys (Ni-P) and Ni-P/ silicon carbide (SiC) nanocomposite coatings were deposited by electrodeposition on steel substrates in order for their microstructural properties to be assessed while using SEM, XRD, and ...
K. Tsongas +8 more
semanticscholar +1 more source
The Topology of Surface Singularities [PDF]
, 2020 We consider a reduced complex surface germ (X, p). We do not assume that X is normal at p, and so, the singular locus ( Σ, p) of (X, p) could be one dimensional. This text is devoted to the description of the topology of (X, p). By the conic structure theorem (see Milnor, Singular Points of Complex Hypersurfaces, Annals of Mathematical Studies 61 (1968)
openaire +2 more sources