Results 291 to 300 of about 6,019,713 (343)

Silica aerogel films at ambient pressure

Journal of Non-Crystalline Solids, 1995
Abstract Silica films with refractive indices in the range of 1.006 – 1.036 (equivalent porosity 98.5–91%) have been prepared at ambient pressure by a process wherein organo-siloxane polymers are deposited on a silicon substrate by conventional dip-coating at 25°C and 0.85 bar (atmospheric pressure in Albuquerque) and heating to 450°C.
Sai S. Prakash, C.Jeffrey Brinker, Alan J. Hurd   +2 more
openaire   +1 more source

Catalytic Conversion of CO2 to Formate with Renewable Hydrogen Donors: An Ambient-Pressure and H2-Independent Strategy

ACS Catalysis, 2019
Catalytic conversion of CO2 via “transfer hydrogenation” using renewable non-H2 compounds (such as biomass-derived (poly)alcohols) to produce valuable energy-relevant chemicals, is a promising alternative strategy to the traditionally employed ...
Abhishek Kumar, Shrivats Semwal, J. Choudhury   +2 more
semanticscholar   +1 more source

Clamshell, by near-ambient pressure XPS

Surface Science Spectra, 2019
Near-ambient pressure x-ray photoelectron spectroscopy (NAP-XPS) is a less traditional form of XPS that allows samples to be analyzed at relatively high pressures, i.e., at greater than 2500 Pa. With NAP-XPS, XPS can probe moderately volatile liquids, biological samples, porous materials, and/or polymeric materials that outgas significantly.
Tuhin Roychowdhury, Stephan Bahr, Paul Dietrich, Michael Meyer, Andreas Thißen, Matthew R. Linford   +5 more
openaire   +1 more source

Synthesis of HgBa2Ca3Cu4Oy under ambient pressure

Physica C: Superconductivity and its Applications, 1996
Abstract The mercury-based oxide superconductor, HgBa 2 Ca 3 Cu 4 O y phases was synthesized by a controlled vapor/solid reaction technique using high-purity powders of HgO, BaO, CaO and CuO as starting materials. Two types of barsm, with different cation ratios of Hg:Ba:Ca:Cu=0:2:2:3 and 1:2:2:3, were heated in an evacuated quartz tube.
R. Usami, S. Adachi, M. Itoh, T. Tatsuki, A. Tokiwa-Yamamoto, K. Tanabe   +5 more
openaire   +1 more source

Experimental study on the burning rates of Ethanol-Gasoline blends pool fires under low ambient pressure

Fuel, 2019
Ethanol-Gasoline has been used as vehicles fuel in areas widely in world, especially in China with areas from plain to high altitude. The addition of ethanol in gasoline will change the physicochemical properties of pure fuels, and then affect the ...
P. Zhu, Zhenxiang Tao, Cong Li, Quanyi Liu, Q. Shao, Rui Yang, H. Q. Zhang   +6 more
semanticscholar   +1 more source

Splashing liquids with ambient gas pressure

SIGGRAPH Asia 2014 Technical Briefs, 2014
Splashing occurs when a liquid drop hits the solid or fluid surface at a high velocity. The drop after the impact spreads and forms a corona with a thickened rim, which first develops annular undulations and then breaks into secondary droplets. We have many chances to see splashes in our daily life, e.g., milk crown, splashing paint, and raindrops ...
Kazuhide Ueda, Issei Fujishiro
openaire   +1 more source

Cryofixation Without Pretreatment at Ambient Pressure

1987
Almost a century ago biological or medical objects were used in their frozen state in order to accelerate pathological diagnosis (immediate section) and to better maintain their chemical constitution (Altmann 1890). This alternative to chemical fixation gained in importance during the first half of this century due to the availability of liquefied air ...
Hellmuth Sitte, Ludwig Edelmann, Klaus Neumann   +2 more
openaire   +1 more source

Ambient pressure and single-bubble sonoluminescence

Physical Review E, 1998
We present a theoretical analysis of the influence of ambient pressure on single-bubble sonoluminescence (SBSL). By combining simulations of gas dynamics, mass diffusion theory, and stability analysis we find a narrow region of the parameter space where stable SBSL is possible.
Ljubinko Kondic, Chi Yuan, C. K. Chan
openaire   +1 more source

Polytetrafluoroethylene, by near-ambient pressure XPS

Surface Science Spectra, 2019
Near-ambient pressure–x-ray photoelectron spectroscopy (NAP-XPS) is a less traditional form of XPS that allows samples to be analyzed at relatively high pressures, i.e., at greater than 2500 Pa. With NAP-XPS, XPS can probe moderately volatile liquids, biological samples, porous materials, and/or polymeric materials that outgas significantly ...
Varun Jain, Stephan Bahr, Paul Dietrich, Michael Meyer, Andreas Thißen, Matthew R. Linford   +5 more
openaire   +1 more source

Ambient pressure carbonation curing of reinforced concrete for CO2 utilization and corrosion resistance

Journal of CO2 Utilization, 2022
Xia Xian, Duo Zhang, Han Lin, Y. Shao
semanticscholar   +1 more source