نتایج جستجو برای: water vapor permeability response surface

تعداد نتایج: 2060353  

2009
J. Cristóbal J. C. Jiménez-Muñoz J. A. Sobrino M. Ninyerola X. Pons

[1] Land surface temperature (LST) is involved in many land surface processes such as evapotranspiration, net radiation, or air temperature modeling. In this paper we present an improved methodology to retrieve LST from Landsat 4 TM, Landsat 5 TM, and Landsat 7 ETM+ using four atmospheric databases covering different water vapor ranges (from 0 to 8 g cm ) to build the LST retrieval models and u...

Journal: :Journal of Polymers and The Environment 2021

Pollution and destruction of the environment due to accumulation non-degradable plastics are some most important concerns in world. A significant amount this waste is related polymers used food packaging. Therefore, experts industry have been looking for suitable biodegradable alternatives synthetic polymers. Preparing biocompatible films based on starch a good choice. In study, various factors...

Journal: :Drug discoveries & therapeutics 2015
Yuko Wada Maki Kihara Mitsuru Nozawa Ken-Ichi Shimokawa Fumiyoshi Ishii

The physicochemical and pharmaceutical properties (pH, peel force, water-vapor permeability, and stretchability) of brand-name and generic ketoprofen products were evaluated and compared. The pHs of Mohrus as a brand-name product and Teikoku as a generic product were low (about 4). Among the other generic products, Patell and Nichi-Iko had a pH of about 4.3 while Frestol, Raynanon, BMD, and Tou...

2014
Kenneth G. Libbrecht

We examine ice crystal growth from water vapor at temperatures near the melting point, when surface premelting creates a quasiliquid layer at the solid/vapor interface. Recent ice growth measurements as a function of vapor supersaturation have demonstrated a substantial nucleation barrier on the basal surface at these temperatures, from which a molecular step energy can be extracted using class...

2016
Giuseppe Torri Zhiming Kuang

Moist patches are areas in the subcloud layer characterized by a positive water vapor anomaly compared to the environment and are considered important in triggering new convective cells. A correct understanding of the origin of the water vapor in these patches is, thus, essential to improving existing convective parameterizations. Recent studies have addressed this problem and have shown that c...

Journal: :Science 1990
J S Lewis D H Grinspoon

Several lines of evidence concerning the vertical abundance profile of water in the atmosphere of Venus lead to strikingly unusual distributions (the water vapor abundance decreases sharply in the immediately vicinity of the surface) or to serious conflicts in the profiles (different infrared bands suggest water abundances that are discrepant by a factor of 2.5 to 10). These data sets can be re...

2015
Konrad Maier Andreas Helwig Gerhard Müller Pascal Hille Martin Eickhoff

In this work the low temperature response of metal oxide semiconductor gas sensors is analyzed. Important characteristics of this low-temperature response are a pronounced selectivity to acid- and base-forming gases and a large disparity of response and recovery time constants which often leads to an integrator-type of gas response. We show that this kind of sensor performance is related to the...

Journal: :Journal of colloid and interface science 2015
Patricia B Weisensee Nitin K Neelakantan Kenneth S Suslick Anthony M Jacobi William P King

HYPOTHESIS Droplet wettability and mobility play an important role in dropwise condensation heat transfer. Heat exchangers and heat pipes operate at liquid-vapor saturation. We hypothesize that the wetting behavior of liquid water on microstructures surrounded by pure water vapor differs from that for water droplets in air. EXPERIMENTS The static and dynamic contact angles and contact angle h...

Journal: :The Journal of chemical physics 2014
Adam P Willard David Chandler

With molecular simulation for water and a tunable hydrophobic substrate, we apply the instantaneous interface construction [A. P. Willard and D. Chandler, "Instantaneous liquid interfaces," J. Phys. Chem. B 114, 1954-1958 (2010)] to examine the similarity between a water-vapor interface and a water-hydrophobic surface interface. We show that attractive interactions between a hydrophobic surface...

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