Results 71 to 80 of about 26,075,004 (255)

Dynamically Controlled Flight Altitudes in Robo-Pigeons via Locus Coeruleus Neurostimulation

open access: yesResearch
Robo-pigeons, a novel class of hybrid robotic systems developed using brain–computer interface technology, hold marked promise for search and rescue missions due to their superior load-bearing capacity and sustained flight performance.
Ke Fang   +7 more
doaj   +1 more source

The roots of coronal structure in the Sun's surface [PDF]

open access: yes, 1994
We have compared the structures seen on X-ray images obtained by a flight of the NIXT sounding rocket payload on July 11, 1991 with near-simultaneous photospheric and chromospheric structures and magnetic fields observed at Big Bear.
Golub, Leon, Wang, Haimin, Zirin, Harold
core  

On the structure of the Si(103) surface

open access: yes, 2007
Although (103) is a stable nominal orientation for both silicon and germanium, experimental observations revealed that in the case of silicon this surface remains disordered on an atomic scale even after careful annealing.
Chuang, F. C.   +2 more
core   +1 more source

Nanoarchitectured Structure and Surface Biofunctionality of Mesoporous Silica Nanoparticles

open access: yesAdvances in Materials, 2020
Mesoporous silica nanoparticles (MSNs), one of the important porous materials, have garnered interest owing to their highly attractive physicochemical features and advantageous morphological attributes.
R. Kankala   +10 more
semanticscholar   +1 more source

Exploring surface structures

open access: yeseLife
The surface layer of Sulfolobus acidocaldarius consists of a flexible but stable outer protein layer that interacts with an inner, membrane-bound protein.
openaire   +3 more sources

Experimental and Theoretical Evidence for Surface-Induced Carbon and Nitrogen Fractionation during Diamond Crystallization at High Temperatures and High Pressures

open access: yesCrystals, 2017
Isotopic and trace element variations within single diamond crystals are widely known from both natural stones and synthetic crystals. A number of processes can produce variations in carbon isotope composition and nitrogen abundance in the course of ...
Vadim N. Reutsky   +4 more
doaj   +1 more source

Depth resolved grazing incidence scattering from the solid-liquid interface

open access: yes, 2013
We have applied small angle scattering in grazing incidence beam geometry on a time-of-flight neutron instrument. Due to the broad wavelength distribution provided for a specific incident beam angle the penetration depth of the neutron beam is varied ...
A. J. C. Dennison   +6 more
core   +1 more source

C and S induces changes in the electronic and geometric structure of Pd(533) and Pd(320)

open access: yes, 2006
We have performed ab initio electronic structure calculations of C and S adsorption on two vicinal surfaces of Pd with different terrace geometry and width.
Blaha P Schwarz K Madsen G K H Kvasnicka D Luitz J   +4 more
core   +1 more source

Complex structure of a DT surface with $T^2$ topology [PDF]

open access: yes, 1996
A method of defining the complex structure(moduli) for dynamically triangulated(DT) surfaces with torus topology is proposed. Distribution of the moduli parameter is measured numerically and compared with the Liouville theory for the surface coupled to c
Kawai, H., Tsuda, N., Yukawa, T.
core   +2 more sources

Surface structural determination

open access: yes, 2001
Diffraction methods have provided the large majority of solved atomic-scale structures for both the bulk materials and their surfaces, mainly in the crystalline state. Crystallography by diffraction tends to filter out defects and focus on the periodic part of a structure.
openaire   +2 more sources

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