نتایج جستجو برای: ambient condition
تعداد نتایج: 363045 فیلتر نتایج به سال:
We report the unique growth of nanofibers in silica and borosilicate glass using femtosecond laser radiation at 8 MHz repetition rate and a pulse width of 214 fs in air at atmospheric pressure. The nanofibers are grown perpendicular to the substrate surface from the molten material in laser-drilled microvias where they intertwine and bundle up above the surface. The fibers are few tens of nanom...
A facile and highly reproducible room temperature, open atmosphere synthesis of cesium lead halide perovskite nanocrystals of six different morphologies is reported just by varying the solvent, ligand and reaction time. Sequential evolution of the quantum dots, nanoplates and nanobars in one medium and nanocubes, nanorods and nanowires in another medium is demonstrated. These perovskite nanopar...
in this thesis, first the notion of weak mutual associativity (w.m.a.) and the necessary and sufficient condition for a $(l,gamma)$-associated hypersemigroup $(h, ast)$ derived from some family of $lesssim$-preordered semigroups to be a hypergroup, are given. second, by proving the fact that the concrete categories, semihypergroups and hypergroups have not free objects we will introduce t...
dental anxiety is defined as an abnormal fearing or dread toward preventive or therapeutic visits by a dentist and unreasonable anxiety against dental procedures. it is estimated that dental anxiety affects one-third of the general population. its physical and cognitive symptoms may result in behavioral issues such as avoidance of early dental visits that troubles both patient and dentist. in o...
The combination of emulsified diesel and low temperature combustion (LTC) technology has great potential in reducing engine emissions. A visualization study on the spray and combustion characteristics of water emulsified diesel was conducted experimentally in a constant volume chamber under conventional and LTC conditions. The effects of ambient temperature on the evaporation, ignition and comb...
We consider a game between two polluting firms and an inspection agency, which can inspect ambient pollution levels before inspecting individual firms, but without committing itself to announced inspection probabilities. Without ambient inspections, we have a unique equilibrium. With ambient inspections, we obtain several equilibria, depending on the relative values of the environmental cost of...
We provide estimates on the volume of tubular neighbourhoods around a subvariety Σ of real projective space, intersected with a disk of radius σ. The bounds are in terms of σ, the dimension of the ambient space, and the degree of equations defining Σ. We use these bounds to obtain smoothed analysis estimates for some conic condition numbers.
Occupied valence electronic structures in the neutral and the anionic forms of aqueous acetic acid and their pH dependence under ambient condition are identified for the first time exploiting the site-selectivity of resonant X-ray emission spectroscopy (XES) in combination with calculation based on density functional theory (DFT).
A commercially available detergent was found to be an effective reducing as well as stabilizing agent for the synthesis of differently shaped gold nanoparticles in an aqueous solution at an ambient condition and the as-prepared gold nanoparticles behave as an efficient catalyst for the reduction reaction of 4-nitrophenol at room temperature.
Introduction: Ambient temperature is considered as a factor affecting on the body's metabolism, So that increase or decrease ambient temperature to the range thermoneutral zone (TNZ) (This temperature is 20.3°C to 23°C for covered people) lead to body metabolic changes, and maybe effective on the increase or reduce the prevalence of obesity. Our aim of this study was to review ...
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