نتایج جستجو برای: λ red disruption system
تعداد نتایج: 2432055 فیلتر نتایج به سال:
In the recent years, laser ablation in liquid has become an increasingly important technique for the fabrication of NPs. this paper reports our recent studies on the generation of ZnO NPs by ablation of metal targets in aqueous environments using Q-switch Nd-YAG laser (λ=532nm) immersed in NaOH (0.1M). The Surface topography studied by atomic force microscopy revealed wider size distributio...
Energy development of decaying isotropic turbulence in a 3-D periodic cube with non-rotating or rotating frames of reference is studied through direct numerical simulation using GPU accelerated lattice Boltzmann method. The initial turbulence is isotropic, generated in spectral space with prescribed energy spectrum E(κ)~κm in a range between κmin and ...
An autonomous surface vehicle instrumented with optical and acoustical sensors was deployed in Kane’ohe Bay, HI, U.S.A., to provide high-resolution, in situ observations of coral reef reflectancewithminimal human presence. The data represented awide range in bottom type, water depth, and illumination and supported more thorough investigations of remote sensing methods for identifying and mappin...
1. Understanding the role of predation in shaping the dynamics of animal communities is a fundamental issue in ecological research. Nevertheless, the complex nature of predator-prey interactions often prevents researchers from modelling them explicitly. 2. By using periodic Leslie-Usher matrices and a simulation approach together with parameters obtained from long-term field projects, we recons...
In the present study, two-phase nanofluid flow in a three-dimensional system is modeled over a stretching infinite solar plate and the heat transfer analysis is performed for this problem. The governing equations are presented based on previous studies and the suitable solution method is recommended due to infinite boundary condition in the problem. Keller Box Method (KBM) using the Maple 1...
We have developed a selective upconversion switching method for the ratiometric fluorescence detection of nitrite using upconversion nanoparticles (UCNPs) and an efficient nitrite reaction. The green emission (λ(em) = 539 nm) of NaYF4:Yb(3+),Er(3+) nanoparticles can be selectively quenched by the neutral red (NR) dye due to the spectral overlap between the emission at 539 nm and the absorption ...
We discuss the following problem: given φ ∈ L2(R) and a sequence Λ ⊂ R, is it possible that the system of translates {φ(x − λ)}λ∈Λ spans the whole space, and how sparse the spectrum Λ might be? 1. Systems of translates 1.1. Let a function φ ∈ L(R) and a discrete sequence Λ ⊂ R be given. We are interested to know if the system of translates {φ(x− λ)}λ∈Λ (1.1) is complete in L(R), that is, if the...
During host injury, Pseudomonas aeruginosa can be cued to express a lethal phenotype within the intestinal tract reservoir-a hostile, nutrient scarce environment depleted of inorganic phosphate. Here we determined if phosphate depletion activates a lethal phenotype in P. aeruginosa during intestinal colonization. To test this, we allowed Caenorhabditis elegans to feed on lawns of P. aeruginosa ...
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