نتایج جستجو برای: methanol sensor
تعداد نتایج: 219195 فیلتر نتایج به سال:
Abstract A novel system for inline monitoring of ammonia (NH 3 ) suitable methanol is presented. An optical sensor with a response time t 90 33 s was combined tailor-made, 3D printed flow cell and allowed efficient measurements under continuous flow. The includes fluorescent indicator dye that physically immobilized into polyurethane hydrogel. protective layer made hydrophobic polyether sulfone...
A metamaterial-based resonator is presented in this paper for liquid-sensing applications. The designed sensor operates at millimetre-wave (mm-w) frequencies, and it can characterise the samples that may possess identical characteristics. This relies on extracted permittivity of structure characterisation samples, mainly liquids. requires a very small amount sensing used distinguishing oil, eth...
The photoactivity of methanol adsorbed on the anatase TiO2 (101) surface was studied by a combination of scanning tunneling microscopy (STM), temperature-programmed desorption (TPD), X-ray photoemission spectroscopy (XPS), and density functional theory (DFT) calculations. Isolated methanol molecules adsorbed at the anatase (101) surface show a negligible photoactivity. Two ways of methanol acti...
A conductometric microsensor for measuring methanol vapor was conceived, based on electrospun composite nanofibers of polyvinyl chloride (PVC) doped with nickel phthalocyanine (NiPc) deposited interdigitated electrodes (IDEs) as transducers. The nanofiber’s shape, structure, percent atomic content and thermal properties were studied. sensor showed good sensitivity (505µS.cm?1.(v/v)?1), low limi...
Wireless sensor networks are often located in areas where access to them is difficult or dangerous. Today, in wireless sensor networks, cluster-based routing protocols by dividing sensor nodes into distinct clusters and selecting local head-clusters to combine and send information of each cluster to the base station and balanced energy consumption by network nodes, get the best performance ...
Nanocomposites of SmFeO3/YFeO3 (1:0, 0.8:0.2, 0.6:0.4, 0.4:0.6, 0.2:0.8, and 0:1) with different molar proportions were prepared by the sol–gel method. The material’s properties characterized various test methods, such as scanning-electron microscopy (SEM) X-ray photoelectron-diffraction spectrometry (XPS). gas-sensing characteristics sensor tested in darkness under illumination using monochrom...
Methanol is the second most abundant volatile organic compound in the troposphere and plays a significant role in atmospheric chemistry. While there is consensus about the dominant role of living plants as the major source and the reaction with OH as the major sink of methanol, global methanol budgets diverge considerably in terms of source/sink estimates reflecting uncertainties in the approac...
We estimated kinetic parameters associated with methanol disposition in humans from data reported in the literature. Michaelis-Menten elimination parameters (Vmax = 115 mg/L/hr; Km = 460 mg/L) were selected for input into a semi-physiologic pharmacokinetic model. We used reported literature values for blood or urine methanol concentrations in humans and nonhuman primates after methanol inhalati...
Infrared spectroscopy is used to follow the chemical changes, as a function of temperature, after sequentially adsorbing trimethylaluminum (TMA) and methanol on hydroxylated alumina. Deuterium-labeled methanol is used to distinguish between the chemistry of methyl and methoxy species. To differentiate between methanol adsorbed on TMA-derived sites and on alumina, the adsorption of methanol is s...
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