Nanoscale and Macroscale Effects of Mineral Deposition During Water Evaporation on Nanoporous Surfaces

2020 ◽  
Vol 12 (23) ◽  
pp. 26350-26359 ◽  
Author(s):  
Emma R. McClure ◽  
Van P. Carey
Keyword(s):  
Water Evaporation ◽  
Mineral Deposition ◽  
Nanoporous Surfaces

Nanoscale and Macroscale Effects of Mineral Deposition During Water Evaporation on Nanoporous Surfaces

2020 ◽  
Author(s):  
Emma R. McClure ◽  
Van P. Carey
Keyword(s):  
Heat Transfer ◽  
Hard Water ◽  
Spray Cooling ◽  
Copper Surface ◽  
Water Evaporation ◽  
Droplet Spreading ◽  
Mineral Deposition ◽  
Evaporation Heat ◽  
Industry Applications ◽  
And Performance

Abstract Recent studies have indicated that droplet evaporation heat transfer can be substantially enhanced by fabricating a thin nanoporous superhydrophilic layer on a metal substrate. Such surfaces have immense potential to improve spray cooling processes, however, little durability testing of the surfaces have been performed. In spray cooling applications, as water evaporates any impurities in the water will be deposited onto the surface. Primarily, this investigation serves to demonstrate how minerals in hard water deposit on the surface and interact with the ZnO nanopillars of the superhydrophilic surface. Quantifying the effects of mineral scale on droplet spreading and vaporization heat transfer on the surface is important in determining implementation requirements to advance the surface into industry applications. Micrographs of the surface demonstrate minerals deposit nonuniformly, and quickly fill the nanostructure. Despite a reduction in the extent of droplet spreading due to the mineral deposition, scaled surfaces still demonstrated improved thermal performance compared to the uncoated, smooth copper surface. Scale tended to build up on previously deposited scale leaving largely uncoated areas where droplets chose to preferentially spread resulting in a continued low contact angle. Maintaining these uncoated areas and reducing the contaminants present in the water will extend the life and performance of the nanostructured surface.

Effects of Hypophysectomy on the Occurrence and Calcifiability of Matrix Vesicles in the Epiphyseal Growth Plate of Immature Rats

1980 ◽  
Vol 38 ◽  
pp. 578-579
Author(s):  
S. I. Coleman ◽  
W. J. Dougherty
Keyword(s):  
Growth Plate ◽  
Matrix Vesicles ◽  
Epiphyseal Growth Plate ◽  
Hard Tissue ◽  
Hormonal Factors ◽  
Post Surgery ◽  
Mineral Deposition ◽  
Thin Sectioning ◽  
Integral Role ◽  
Cellular Secretion

In the cellular secretion theory of mineral deposition, extracellular matrix vesicles are believed to play an integral role in hard tissue mineralization (1). Membrane limited matrix vesicles arise from the plasma membrane of epiphyseal chondrocytes and tooth odontoblasts by a budding process (2, 3). Nutritional and hormonal factors have been postulated to play essential roles in mineral deposition and apparently have a direct effect on matrix vesicles of calcifying cartilage as concluded by Anderson and Sajdera (4). Immature (75-85 gm) Long-Evans hooded rats were hypophysectomized by the parapharyngeal approach and maintained fourteen (14) days post-surgery. At this time, the animals were anesthetized and perfusion fixed in cacodylate buffered 2.5% glutaraldehyde. The proximal tibias were quickly dissected out and split sagittally. One half was used for light microscopy (LM) and the other for electron microscopy (EM). The halves used for EM were cut into blocks approximately 1×3 mm. The tissue blocks were prepared for ultra-thin sectioning and transmission EM. The tissue was oriented so as to section through the epiphyseal growth plate from the zone of proliferating cartilage on down through the hypertrophic zone and into the initial trabecular bone. Sections were studied stained (double heavy metal) and unstained.

Kinetics of Water Evaporation from Emulsions

2005 ◽  
Vol 36 (5) ◽  
pp. 425-430 ◽  
Author(s):  
A. M. Pavlenko ◽  
B. I. Basok
Keyword(s):  
Water Evaporation ◽  
Kinetics Of

STUDYING THE PROCESS OF WATER EVAPORATION WITH OF CASTOR OIL IN ELECTRIC FIELD OF MULTI-ELECTRODE SYSTEMS

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
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Keyword(s):  
Electric Field ◽  
Castor Oil ◽  
Water Evaporation ◽  
Electrode Systems

Adhesive system with alpha-tricalcium phosphate addition for mineral deposition on caries-affected dentin

2021 ◽  
Vol 105 ◽  
pp. 102790
Author(s):  
Priscila Raquel Schiroky ◽  
Isadora Martini Garcia ◽  
Fernanda Coradini Noal ◽  
Vicente Castelo Branco Leitune ◽  
Fernando Borba de Araújo ◽  
...  
Keyword(s):  
Tricalcium Phosphate ◽  
Adhesive System ◽  
Mineral Deposition ◽  
Phosphate Addition

scholarly journals Identifying surface water evaporation loss of inland river basin based on evaporation enrichment model

2021 ◽  
Vol 35 (3) ◽  
Author(s):  
Zhigang Sun ◽  
Guofeng Zhu ◽  
Zhuanxia Zhang ◽  
Yuanxiao Xu ◽  
Leilei Yong ◽  
...  
Keyword(s):  
Surface Water ◽  
River Basin ◽  
Water Evaporation ◽  
Evaporation Loss ◽  
Inland River ◽  
Inland River Basin
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