نتایج جستجو برای: hygroscopic expansion

تعداد نتایج: 142448  

Journal: :Langmuir : the ACS journal of surfaces and colloids 2014
Devon Bridgeman Javier Corral Ashley Quach Xiaojun Xian Erica Forzani

Using supported ionic-liquid membrane (SILM)-inspired methodologies, we have synthesized, characterized, and developed a humidity sensor by coating a liquid composite material onto a hygroscopic, porous substrate. Similar to pH paper, the sensor responds to the environment's relative humidity and changes color accordingly. The humidity indicator is prepared by casting a few microliters of low-t...

2016
Fuyong Yan De-Hua Han

Although there is no assumption of pore geometry in derivation of Gassmann’s equation, the pore geometry is in close relation with hygroscopic water content and pore fluid communication between the micropores and the macropores. The hygroscopic water content in common reservoir rocks is small, and its effect on elastic properties is ignored in the Gassmann theory. However, the volume of hygrosc...

Journal: :Infectious Diseases in Obstetrics and Gynecology 1998
J U Hibbard A Shashoua C Adamczyk M Ismail

OBJECTIVE To study the effectiveness and morbidity of adding hygroscopic cervical dilators to prostaglandin gel for cervical ripening and labor induction. STUDY DESIGN Patients of at least 34 weeks' gestation with a medical indication for induction of labor and with a modified Bishop score of 5 or less were randomized to receive either prostaglandin gel or prostaglandin gel with hygroscopic c...

2016
Jing Yuan Lingbing Bu Xingyou Huang Haiyang Gao Robert W. Talbot

To investigate the particulate characteristics of a haze episode, data from two ceilometers with wavelengths of 532 nm and 910 nm, respectively, were studied intensively. By combining the data from the ceilometers with data from a sounding balloon, an automatic meteorological station, and a Grimm 180 PM instrument, analyses of the haze process of a short haze event were performed. The results s...

2011
A. Bougiatioti A. Nenes C. Fountoukis N. Kalivitis S. N. Pandis N. Mihalopoulos

We present size-segregated measurements of cloud condensation nucleus (CCN) activity of aged aerosol sampled at Finokalia, Crete, during the Finokalia Aerosol Measurement Experiment of summer 2007 (FAME07). From analysis of the data, hygroscopicity and activation kinetics distributions are derived. The CCN are found to be highly hygroscopic, (expressed by a sizeand timeaveraged hygroscopicity p...

2009
I. Riipinen H. E. Manninen

Measurements on the composition of nanometersized atmospheric particles are the key to understand which vapors participate in the secondary aerosol formation processes. Knowledge on these processes is crucial in assessing the climatic effects of secondary aerosol formation. We present data of >2 nm particle concentrations and their water-affinity measured with the Condensation Particle Counter ...

2016
Wendy Stone Otini Kroukamp Darren R. Korber Jennifer McKelvie Gideon M. Wolfaardt

The human environment is predominantly not aqueous, and microbes are ubiquitous at the surface-air interfaces with which we interact. Yet microbial studies at surface-air interfaces are largely survival-oriented, whilst microbial metabolism has overwhelmingly been investigated from the perspective of liquid saturation. This study explored microbial survival and metabolism under desiccation, par...

Journal: :Chemistry Journal of Moldova 2018

2016
Piyaphong Panpisut Saad Liaqat Eleni Zacharaki Wendy Xia Haralampos Petridis Anne Margaret Young

PURPOSE This study developed light cured dental composites with added monocalcium phosphate monohydrate (MCPM), tristrontium phosphate (TSrP) and antimicrobial polylysine (PLS). The aim was to produce composites that have enhanced water sorption induced expansion, can promote apatite precipitation and release polylysine. MATERIALS AND METHODS Experimental composite formulations consisted of l...

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