Results 61 to 70 of about 202,313 (303)

Thermodynamic Exercises for the Kinetically Controlled Hydrogenation of Carvone

Chemistry
Carvone belongs to the chemical family of terpenoids and is the main component of various plant oils. Carvone and its hydrogenated products are used in the flavouring and food industries.
Artemiy A. Samarov, Sergey V. Vostrikov, Aleksandr P. Glotov, Sergey P. Verevkin   +3 more
doaj   +1 more source

The vapour-pressure curve [PDF]

Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1941
By an extension of Mayer’s theory of condensation, exact equations are derived for the vapour pressure and the condensation volume of the gas in terms of the virial coefficients on the one hand and the free energy of the condensed phase on the other. The formula for the vapour pressure reduces in first approximation to Stem’s vapour-pressure equation.
openaire   +2 more sources

Low‐Cost, Large‐Scale Nanoporous Metals by Mechanical Alloying, Oxide Reduction, and Dealloying of Powders

Advanced Engineering Materials, EarlyView.
Powder metal processing provides scalable advantages in nanoporous (np) metal development. Mechanical alloying is used to produce unique precursors for hybrid nanopore formation by oxide reduction and dealloying. As demonstrated in np Ag, this approach improves process efficiency while promoting smaller ligaments and larger pores, both of which are ...
Mark A. Atwater, Oliver A. Fowler
wiley   +1 more source

Historical water vapour measurements at Hohenpeissenberg observatory demonstrate long term change

Meteorologische Zeitschrift, 2014
Historical psychrometric water vapour measurements (1841–1867) from Hohenpeissenberg were found to have an acceptable data quality. The mean frequency distribution of daily averages shows a characteristic shift to a higher level in the transition from ...
Peter Winkler
doaj   +1 more source

Retrieval of characteristic parameters for water vapour transmittance in the development of ground-based sun–sky radiometric measurements of columnar water vapour [PDF]

Atmospheric Measurement Techniques, 2014
Sun–sky radiometers are instruments created for aerosol study, but they can measure in the water vapour absorption band allowing the estimation of columnar water vapour in clear sky simultaneously with aerosol characteristics, with high temporal ...
M. Campanelli, T. Nakajima, P. Khatri, T. Takamura, A. Uchiyama, V. Estelles, G. L. Liberti, V. Malvestuto   +7 more
doaj   +1 more source

Nearest-Neighbour and Non-Nearest-Neighbour Non-Covalent Interactions between Substituents in the Aromatic Systems: Experimental and Theoretical Investigation of Functionally Substituted Benzophenones

Molecules, 2022
Benzophenone derivatives exhibit not only biological activity but also act as photo initiator and UV blocker. We carried out experimental and theoretical thermochemical studies of hydroxy- and methoxy-substituted benzophenones.
Artemiy A. Samarov, Stanislav O. Kondratev, Sergey P. Verevkin   +2 more
doaj   +1 more source

SAFT-γ force field for the simulation of molecular fluids: 4. A single-site coarse-grained model of water applicable over a wide temperature range [PDF]

, 2014
In this work, we develop coarse-grained (CG) force fields for water, where the effective CG intermolecular interactions between particles are estimated from an accurate description of the macroscopic experimental vapour-liquid equilibria data by means of
Avendaño, C, Avendaño, C, Jackson, G, Lafitte, T, Lafitte, T, Lobanova, O, Müller, EA   +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

Improving efficiency of vapour phase soldering ovens with pressure and temperature-based process monitoring

Case Studies in Thermal Engineering
During vapour phase reflow soldering used in electronics manufacturing, the process control of ovens is usually based on temperature measurements, which can be insufficient due to the saturation differences in the temperature and the vapour concentration.
Gergő Havellant, Balázs Illés, David Bušek, Attila Géczy   +3 more
doaj   +1 more source

Field Evaluation of Polymer Capacitive Humidity Sensors for Bowen Ratio Energy Balance Flux Measurements

Sensors, 2010
The possibility of reliable, reasonably accurate and relatively inexpensive estimates of sensible heat and latent energy fluxes was investigated using a commercial combination thin-film polymer capacitive relative humidity and adjacent temperature sensor
Michael J. Savage
doaj   +1 more source