submitted by KonnoFel 26 minutes ago
The number of applications using high frame rate imaging in combustion research has grown rapidly in recent years. Enabled by continuous improvements in laser power, a wide range of diagnostics have been developed to measure velocity, species concentration, and temperature. Growing attention is f...
submitted by chakks 26 minutes ago
We report a sub-picosecond photoresponse and THz transient generation of GaAs single-crystal mesoscopic platelets excited by femtosecond optical pulses. Our structures were fabricated by a top-down technique, by patterning an epitaxial, 500-nm-thick GaAs film grown on top of an AlAs sacrificial l...
submitted by WhammaPak 26 minutes ago
Based on the extended Huygens–Fresnel principle and the unified theory of coherence and polarization of light, we investigate the propagation properties of a radially polarized beam through turbulent ocean. Analytic formulae for the spectral density, the spectral degree of polarization, and the...
submitted by DravenTre 26 minutes ago
We present comprehensive studies on cavity parameter dependencies of the mode beat frequencies of external-cavity semiconductor lasers realized by quantum dot- and quantum cascade-active gain media. The observed deviation of the mode beat frequency dependence on cavity length from a simple one-ov...
submitted by BraylMic 36 minutes ago
The bactericidal effect of silver nanoparticles (SNP) has lead to their application in several products mainly in the medicine field. This study analyzed the distribution, accumulation, and toxicity in principal organs of Wistar rats exposed to SNP suspensions by oral administration. Two sizes of...
submitted by bdobolas 36 minutes ago
SrTiO3–TiO2 heterojunction thin-film nanotube arrays (SNTs, the average inner diameter is about 50 nm) was fabricated via electrochemical anodization followed by a hydrothermal treatment. The photo-to-current conversion properties and the photoelectrochemical performance for cathodic protectio...
submitted by kochrchi 36 minutes ago
Magnetic Fe nanoparticles were fabricated using a magnetron–sputtering-based gas-phase condensation method, and they have an average size of 20 nm. The Fe nanoparticles were modified by 3-aminopropyltriethoxy silane, and were subsequently activated by glutaraldehyde, and then amino modified DN...
submitted by monto72 57 minutes ago
In the oil industry, scale inhibitor (SI) squeeze treatment is an established method to prevent deposition of inorganic scales in the wellbore and near wellbore formation. Most scale inhibitor chemicals are water soluble and therefore typically deployed as an aqueous solution. However, most carbo...
submitted by ormbrajo 57 minutes ago
Porosity sensitivity is an important index for determining the spacing of the neutron porosity tool, and optimized spacing can improve formation porosity resolution. Based on the neutron flux formula obtained through a double-group approach, we study the variations of fast-neutron slowing-down le...
submitted by eyoda86 1 hour ago
Since the days of the technology's conception, concerns have been voiced over potential supply constraints of Tellurium that could limit the large-scale deployment of the Cadmium Telluride (CdTe) solar photovoltaic technology. Because any potential supply-demand imbalance created by a Tellurium c...
submitted by renlianfeng 1 hour ago
Adsorption states of size-selected Pt7 clusters soft-landed on an Al2O3/NiAl(110) were investigated using scanning tunneling microscopy and spectroscopy at 300 K. Pt7 clusters lay flat on the surface with a planar structure and were preferentially adsorbed on domain boundaries (DBs) of the Al2O3 ...
submitted by glozil 1 hour ago
In this work, we have considered the flat FRW model of the universe in (n + 2) dimension filled with dark matter (perfect fluid with negligible pressure) and the modified Chaplygin gas (MCG) type dark energy. We present the Hubble parameter in terms of the observable parameters Ωm0, Ωx0 and H0 ...
submitted by LaynLuci 1 hour ago
We generalize a recently introduced quantum model of a nonlinear oscillator to arbitrary dimensions. In our realization of the model we impose hyperspherical symmetry, which allows for separation of variables in the governing equation. We obtain the discrete spectrum in closed form, as well as th...
submitted by cheikwa 1 hour ago
The structure of the Λ 10 Be and Λ 10 B with of an α + α + Λ + N four-body model cluster model is studied. The two-body ΛN interaction is adjusted so as to reproduce reproduce the 0 + - 1 + splitting of Λ 4 H. Also a phenomenological ΛN charge symme...
submitted by 23456 2 hours ago
Mixed metal oxides pigments of TiO2.ZnO, 2TiO2.ZnO, Zn2TiO4, MgTiO3, CaTiO3, TiO2.ZnO.MgO, and TiO2.ZnO.SrO were synthesized from corresponding oxides or carbonates at high temperature. The obtained metal mixed oxides were characterized by means of X-fray diffraction analysis, measurement of part...