نتایج جستجو برای: nano nitrogen

تعداد نتایج: 168578  

2017
Richard C Petersen

A breakthrough has been discovered in pathology chemistry related to increasing molecular structure that can interfere with oxygen diffusion through cell membranes. Free radicals can crosslink unsaturated low-viscosity fatty acid oils by chain-growth polymerization into more viscous liquids and even solids. Free radicals are released by mitochondria in response to intermittent hypoxia that can ...

2014
Todd A. Egerton Ryan E. Morse Harold G. Marshall Margaret R. Mulholland

Algal blooms are dynamic phenomena, often attributed to environmental parameters that vary on short timescales (e.g., hours to days). Phytoplankton monitoring programs are largely designed to examine long-term trends and interannual variability. In order to better understand and evaluate the relationships between water quality variables and the genesis of algal blooms, daily samples were collec...

2018
Waheed Khan Qun Wang Xin Jin

We report the first results of functional properties of nitrogenized silver-permalloy thin films deposited on polyethylene terephthalic ester {PETE (C10H₈O₄)n} flexible substrates by magnetron sputtering. These new soft magnetic thin films have magnetization that is comparable to pure Ni81Fe19 permalloy films. Two target compositions (Ni76Fe19Ag₅ and Ni72Fe18Ag10) were used to study the effect ...

Journal: :Journal of Soil Sciences and Agricultural Engineering (Print) 2021

A laboratory incubation experiment in a closed dynamic air flow system was conducted for 30 days to estimate the volatilization loss of NH3-N from 0, 1, 2 and 3% Nano-ZnO coated urea treated soil. The volatilized soil chambers collected titrated every 48 hours. Another carried out study effect coating with on inorganic nitrogen (NH4-N NO3-N) content soils at 2, 4, 8, 14 21 period. two experimen...

Mahmoud Mirzaei

The electronic and structural properties of pristine and carbon doped (C-doped) boron nitride nano-ribbons(BNNRs) have been studied employing density functional theory (DFT) calculations. Total energies, gapenergies, dipole moments, and quadrupole coupling constants (qcc) have been calculated in the optimizedstructures of the investigated BNNRs. The results indicated that the stability and gap ...

Journal: :Surface & Coatings Technology 2022

In this study, we investigated the microstructural evolution, surface hardening and general corrosion properties of a precipitation-strengthened Inconel 718 Ni-superalloy after triode-plasma nitriding (TPN) at low treatment temperatures 400–450 °C (i.e. thermodynamic paraequilibrium conditions) high temperature 700 °C. At temperatures, apart from formation nitrogen-expanded austenite (? N ) hig...

Journal: :Frontiers of Physics in China 2023

The nitrogen-vacancy (NV) center in diamond has been developed as a promising platform for quantum sensing, especially magnetic field measurements the nano-tesla range with nano-meter resolution. Optical spin readout performance direct effect on signal-to-noise ratio (SNR) of experiments. In this work, we introduce an online optimization method to customize laser waveform readout. Both simulati...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه مازندران - دانشکده شیمی 1393

ترکیب نانومتخلخل sba-15 دوپه شده با pd (pd-sba-15) به روش مستقیم سنتز شد. pd-sba-15 سنتزی توسط روش های طیف بینی پراش اشعه x (xrd)، میکروسکوپی الکترون روبشی (sem)، طیف بینی پراکنش انرژی (eds) و تکنیک bet مورد مطالعه قرار گرفت. ایزوترم واجذب گاز نیتروژن، اندازه تخلخل pd-sba-15 را کمتر از nm10 نشان داد. همچنین وجود pd توسط طیف بینی پراکنش انرژی تأیید گردید. به منظور مطالعه خواص الکتروکاتالیتیکیpd-...

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