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Coefficient of Restitution of Wet Tennis Balls [PDF]
International Scholastic Journal of Science, 2014 The coefficient of restitution of a damp tennis ball is of interest to tennis players. Using a spray bottle, water was added to a tennis ball and the mass of water on the wet ball was determined. The ball was then dropped from a fixed height of 0.86 m.
Eugene Jang, Tony Kim
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Ecotoxicology and Environmental Safety, 2023 Peri-urban vegetable field plays an essential role in providing vegetables for local residents. Because of its particularity, it is affected by both industrial and agricultural activities which have led to the accumulations of heavy metal in soil. So far,
Nai-Wen Hu +8 more
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Environmental Research LettersRecent years were characterized by an increase in spatially co-occurring hot, wet or dry extreme events around the globe. In this study we analyze data from multi-model climate projections to analyze the occurrence of spatially compounding events and ...
Bianca Biess +3 more
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Influencia de la molienda en la energía superficial de fritas para esmaltes
Boletín de la Sociedad Española de Cerámica y Vidrio, 2013 In this work has been studied the influence of the milling process of two ceramic frits used in the ceramic tile industry. Both glass frits were of similar chemical composition changing SiO2 by 5% of B2O3 and both of them were water or dry milled.
Tamayo, A. +3 more
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Chain-length dependent ultrasonic degradation of perfluoroalkyl substances
Chemical Engineering Journal Advances, 2023 Per- and polyfluoroalkyl substances (PFAS) have been found all over the world and are particularly persistent, potentially carcinogenic, and bioaccumulative in the environment.
Takshak Shende +2 more
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Langmuir, 2016 This feature article provides an overview of wetting phenomena. Much of the analysis done on wetting in the last 100 years assumes that the phenomena are determined by molecular interactions within the interfacial area between the liquid and solid. However, there is now ample evidence that wetting is controlled by interactions in the vicinity of the ...
openaire +2 more sources
A Review of Age-related Macular Degeneration and Current Concepts in Management
TNOA Journal of Ophthalmic Science and ResearchAge-related macular degeneration (AMD) is a prevalent and progressive retinal disease that affects a substantial number of elderly individuals worldwide.
Sahebaan Sethi
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Ecotoxicology and Environmental Safety, 2021 To date, although there are many studies investigating the toxicity of heavy metal to plant, little research exists in the seasonal freeze-thaw (FT) regions where FT cycles often happen during the plant growing process.
Quan-Ying Wang +6 more
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Influence of 3D-printing conditions on physical properties of hydrogel objects
Mechanical Engineering Journal, 2018 In this paper, we present the relationship between printing parameters of a 3D gel printer "Soft and Wet Intelligent Matter-Easy Realizer (SWIM-ER)" and mechanical properties of the fabricated gel objects by SWIM-ER.
Takafumi OTA +8 more
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Journal of Fungi, 2022 The hostile environment of mine tailings contains unique microbial life capable of bioleaching. The metagenomic analysis of such an environment provides an in-depth understanding of the microbial life and its potential, especially in biomining operations.
Rosina Nkuna +2 more
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