Results 51 to 60 of about 98,604 (301)

Dual effects of leptin in perioperative gas exchange of morbidly obese patients [PDF]

, 2018
Leptin has shown positive effects on respiratory function in experimental settings. The role of leptin on perioperative respiratory function in morbidly obese patients has not been established.
Carron, Michele, Foletto, Mirto, Gabellini, Giulia, Ieppariello, Giovanna, Martelli, Gabriele, Ori, Carlo, Perissinotto, Egle   +6 more
core   +2 more sources

Planar Solid‐State Nanopores Toward Scalable Nanofluidic Integration Based on CMOS Technology

Advanced Engineering Materials, EarlyView.
We present a scalable silicon‐based fabrication strategy for planar solid‐state nanopores to enable their integration with complex nanofluidic systems. Prototype devices demonstrate normal voltage‐current characteristics, good noise performance, and appreciable streaming currents. Our CMOS‐compatible fabrication process offers precise geometric control
Ngan Hoang Pham, Chenyu Wen, Mohammad Hadi Khaksaran, Won‐Yong Lee, Javier Cruz, Klas Hjort, Dongping Wu, Shi‐Li Zhang   +7 more
wiley   +1 more source

Modification Mechanism of La-doped Ti/SnO2 Electrodes from a micro-perspective: Electrochemical Analysis Compared with Theoretical Calculations

International Journal of Electrochemical Science, 2017
Elemental doping can effectively improve the catalytic oxidation performance of titanium-based electrodes. To investigate the modification mechanism of La doping of Ti-based SnO2 electrodes, the electrochemical behaviour of the electrodes was tested ...
Qiang Bi, Juanqin Xue, Xiao Zhang, Wenzhong Guan, Yaowu Cui, Le Ju   +5 more
doaj   +1 more source

Process for making a noble metal on tin oxide catalyst [PDF]

, 1989
A quantity of reagent grade tin metal or compound, chloride-free, and high-surface-area silica spheres are placed in deionized water, followed by deaerating the mixture by boiling and adding an oxidizing agent, such as nitric acid.
Davis, Patricia, Miller, Irvin M., Upchurch, Billy T.   +2 more
core   +1 more source

Synthesis of sub-5 nm Co-doped SnO$_2$ nanoparticles and their structural, microstructural, optical and photocatalytic properties

, 2013
A swift chemical route to synthesize Co-doped SnO$_2$ nanopowders is described. Pure and highly stable Sn$_{1-x}$Co$_x$O$_{2-\delta}$ (0 $\le$ x $\le$ 0.15) crystalline nanoparticles were synthesized, with mean grain sizes < 5 nm and the dopant element ...
Cabrita, J., Dalui, S., Entradas, T., Monteiro, O. C., Nunes, M. R., Silvestre, A. J.   +5 more
core   +1 more source

RAMAN SCATTERING IN NANOSCALE TIN DIOXIDE

Photoelectronics, 2015
The Raman scattering spectra peculiarities are analyzed for nanosized samples of tin dioxide using the authors’ own research and the available literature. The presented results show the series of differences in RS spectra in the nanoobjects in comparison with the bulk material. The principle peculiarities comprise: the broadening of peaks, the spectra ‘
V. S. Grinevich, L. M. Filevska
openaire   +1 more source

Handbook of Establishing and Maintaining Oxygen‐Free Atmospheres

Advanced Engineering Materials, EarlyView.
This study presents a practical framework for creating oxygen‐free atmospheres at ambient pressure using silane‐doped inert gases. The results show that ultra‐low oxygen levels and strongly reduced water content can be achieved through controlled silane dosing, drying systems, and sensor monitoring.
Sascha Jan Zimmermann, René Gustus, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +3 more
wiley   +1 more source

Development of Conductive Coatings for Gas-Sensitive Tin Dioxide Film Layers [PDF]

Журнал нано- та електронної фізики, 2014
For large-scale application of gas sensors based on tin dioxide films it is necessary to reduce the cost of such devices. This is possible by using aluminum films as conductive coatings. Therefore, the influence of the operating conditions on the surface
G.S. Khrypunov, O.V. Pirohov, V.A. Novikov, R.V. Zaitsev, L.V. Zaitseva, A.L. Khrypunova   +5 more
doaj  

Sensing low concentrations of CO using flame-spray-made Pt/SnO2 nanoparticles [PDF]

, 2018
Tin dioxide nanoparticles of different sizes and platinum doping contents were synthesized in one step using the flame spray pyrolysis (FSP) technique. The particles were used to fabricate semiconducting gas sensors for low level CO detection, i.e.
Barsan, N., Grunwaldt, J.-D, Gurlo, A., Mädler, L., Pratsinis, S.E., Sahm, T., Weimar, U.   +6 more
core  

Effect of Oxygen Content on Surface and Subsurface Integrity During Turning of Ti–6Al–4V

Advanced Engineering Materials, EarlyView.
This study examines how oxygen content in the ambient atmosphere affects the surface and subsurface properties of Ti–6Al–4V during turning. Results show that oxygen does not influence surface roughness. However, machining in an extremely high vacuum‐adequate atmosphere increases surface hardness by up to 7.8% and induces compressive residual stresses ...
Benjamin Bergmann, Berend Denkena, Hilke Petersen, Florian Schaper   +3 more
wiley   +1 more source