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Journal articles on the topic 'Natural surface water'

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1

Chatterjee, Deb Shankar, V. Saritha V.Saritha, and NV Srikanth Vuppala. "Modeling and Optimization of Natural Coagulant for Surface Water Treatment." International Journal of Scientific Research 3, no. 5 (2012): 1–3. http://dx.doi.org/10.15373/22778179/may2014/201.

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2

Fraley, Jill. "Water, Water, Everywhere: Surface Water Liability." Michigan Journal of Environmental & Administrative Law, no. 5.1 (2015): 73. http://dx.doi.org/10.36640/mjeal.5.1.water.

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By 2030 the U.S. will lose around $520 billion annually from its gross domestic product due to flooding. New risks resulting from climate change arise not only from swelling rivers and lakes, but also from stormwater runoff. According to the World Bank, coastal cities risk flooding more from their poor management of surface water than they do from rising sea levels. Surface water liability governs when a landowner is responsible for diverting the flow of water to a neighboring parcel of land. Steep increases in urban flooding will make surface water an enormous source of litigation in the comi
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3

Vaišis, Vaidotas, Eglė Anužytė, Dainius Paliulis, and Jolita Bradulienė. "MODIFICATION OF NATURAL OIL SORBENT FOR IMPROVEMENT OF HYDROPHOBICITY." Journal of Environmental Engineering and Landscape Management 30, no. 1 (2022): 226–33. http://dx.doi.org/10.3846/jeelm.2022.16958.

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A sorbent made of natural materials (moss) was selected for the sorption of diesel from the surface of the water. The sorbent was modified to increase its hydrophobic–oleophilic characteristics. Typical natural organic sorbent from moss was selected and modified in three different ways: processed with hot water (80 °C and 100 °C), mercerized and coated with oil–water (10% and 50%). Water, diesel sorption capacity, and oil retention tests were performed. Tests showed that simple treatment with hot water and alkali can change surface properties and improve sorption capacity. Modification with ho
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4

Kumar, Navneet, and Jaywant H. Arakeri. "Natural Convection Driven Evaporation from a Water Surface." Procedia IUTAM 15 (2015): 108–15. http://dx.doi.org/10.1016/j.piutam.2015.04.016.

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5

McMartin, Dena W., John V. Headley, Duane A. Friesen, Kerry M. Peru, and Jon A. Gillies. "Photolysis of Naphthenic Acids in Natural Surface Water." Journal of Environmental Science and Health, Part A 39, no. 6 (2004): 1361–83. http://dx.doi.org/10.1081/ese-120037839.

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6

Adenaya, Adenike, Michaela Haack, Christian Stolle, Oliver Wurl, and Mariana Ribas-Ribas. "Effects of Natural and Artificial Surfactants on Diffusive Boundary Dynamics and Oxygen Exchanges across the Air–Water Interface." Oceans 2, no. 4 (2021): 752–71. http://dx.doi.org/10.3390/oceans2040043.

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Comparing measurements of the natural sea surface microlayer (SML) and artificial surface films made of Triton-X-100 and oleyl alcohol can provide a fundamental understanding of diffusive gas fluxes across the air–water boundary layers less than 1 mm thick. We investigated the impacts of artificial films on the concentration gradients and diffusion of oxygen (O2) across the SML, the thickness of the diffusive boundary layer (DBL), and the surface tension levels of natural seawater and deionized water. Natural and artificial films led to approximately 78 and 81% reductions in O2 concentration a
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7

Wang, Zhuoqin, Jianan Kong, Qixiang Zhou, and Xinjia Chen. "Natural Superhydrophobic Surfaces and Application." Journal of Physics: Conference Series 2390, no. 1 (2022): 012115. http://dx.doi.org/10.1088/1742-6596/2390/1/012115.

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Abstract Superhydrophobicity refers to the phenomenon that the contact angle of various low surface tension water droplets on the solid surface is greater than 150°. Over the past few years, people have paid more attentions in the superhydrophobic surfaces’ design and application. The superhydrophobic surfaces are meaningful for basic research and various practical applications, such as self-cleaning, drag reduction, lubrication, and more. This paper summarizes the recent advances and developments in superhydrophobic surfaces systematically. Furthermore, in this work, the authors focus on the
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8

Iurchenko, Valentyna, and Oksana Melnikova. "Use of Natural Zeolite to Improve Quality and Environmental Safety of Natural Surface Waters and Waste Surface Waters." Key Engineering Materials 925 (July 11, 2022): 135–41. http://dx.doi.org/10.4028/p-uk5c75.

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Natural zeolites are materials which, due to the peculiarities of their crystal structure and high adsorption and ion exchange properties, have wide prospects for use in technologies of adsorption purification of aquatic environments. The paper presents the results of laboratory research in dynamic and static conditions of sorption properties of natural zeolite, which is currently used for purification of natural water from suspended solids in industrial water treatment plants. The sorption capacity of different fractions of this zeolite to ammonium nitrogen, fluorides and petroleum products h
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9

Zhu, Ya Guang, Pei Zhen Xu, Qiu Yi Li, and Chuan Li. "Influence of Water Repellent Surface Impregnation on Water Absorption Properties of Recycled Aggregate Concrete." Applied Mechanics and Materials 71-78 (July 2011): 5011–14. http://dx.doi.org/10.4028/www.scientific.net/amm.71-78.5011.

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This paper aimed to investigate the influence of using silane surface water repellent treatment on the capillary water absorption properties of recycled aggregate concrete. In this study, two types of coarse aggregate, natural aggregates and recycled aggregates were used, and the surface water repellent treatment of concrete was produced by brushing 100g/m2 and 200g/m2 of paste. It was found that the silane impregnation depth of recycled concrete was deeper than that of natural concrete, and the surface treatment was more effective in the improvement of capillary water absorption properties of
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10

Gavrilin, Sergey N. "Temperature gradient of the natural water surface thermal radiation." E3S Web of Conferences 457 (2023): 02006. http://dx.doi.org/10.1051/e3sconf/202345702006.

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The dependence of the thermal radiation of natural water on its kinetic temperature in the temperature range of 7-70 degrees Celsius was experimentally investigated. The measurements were carried out on an experimental installation FPK-11 with a thermocouple as a receiver of integral thermal radiation. The measurements were carried out outdoors at an ambient temperature of about zero degrees Celsius. The water temperature was measured by a contact thermometer immersed in the water column. In the temperature range of 28-40 degrees Celsius, a decrease in the thermal radiation of water was reveal
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11

Golosov, S. D., I. S. Zverev, and A. Yu Terzhevik. "Parameterization of Water Transparency in Natural Water Bodies." Водные ресурсы 50, no. 5 (2023): 613–21. http://dx.doi.org/10.31857/s0321059623600163.

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A new parameterization is presented to describe the space and time variations of Secchi depth depending on the integral phytoplankton biomass and surface water temperature. The parameterization was verified against field data in lakes with different types of physiographic and chemical–biological characteristics—from deep oligotrophic northern regions of Lake Ladoga to shallow hypereutrophic Pskovskoe Lake. The results of verification show that the new parameterization can be used for solving a wide range of either hydrothermodynamic or hydrobiological problems. In particular, in the simulation
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12

Starke, P., P. Göbel, and W. G. Coldewey. "Urban evaporation rates for water-permeable pavements." Water Science and Technology 62, no. 5 (2010): 1161–69. http://dx.doi.org/10.2166/wst.2010.390.

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In urban areas the natural water balance is disturbed. Infiltration and evaporation are reduced, resulting in a high surface runoff and a typical city climate, which can lead to floods and damages. Water-permeable pavements have a high infiltration rate that reduces surface runoff by increasing the groundwater recharge. The high water retention capacity of the street body of up to 51 l/m2 and its connection via pores to the surface lead to higher evaporation rates than impermeable surfaces. A comparison of these two kinds of pavements shows a 16% increase in evaporation levels of water-permeab
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13

Babanin, Alexander, Miguel Onorato, and Luigi Cavaleri. "On Natural Modulational Bandwidth of Deep-Water Surface Waves." Fluids 4, no. 2 (2019): 67. http://dx.doi.org/10.3390/fluids4020067.

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We suggest that there exists a natural bandwidth of wave trains, including trains of wind-generated waves with a continuous spectrum, determined by their steepness. Based on laboratory experiments with monochromatic waves, we show that, if no side-band perturbations are imposed, the ratio between the wave steepness and bandwidth is restricted to certain limits. These limits are consistent with field observations of narrow-banded wind-wave spectra if a characteristic width of the spectral peak and average steepness are used. The role of the wind in such modulation is also discussed.
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14

Barhalescu, Mihaela Luminita, Tudor-Cristian Petrescu, and Adrian Sabau. "THIN NICKEL LAYER BEHAVIOUR IN NATURAL SEA WATER." International Journal of Modern Manufacturing Technologies 14, no. 3 (2022): 16–20. http://dx.doi.org/10.54684/ijmmt.2022.14.3.16.

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Various methods were used, in order to protect the material base; the study subject has been put under various conditions and were thus implemented in an attempt to prolong the operating life and to require less maintenance and replacement of parts. Pulsed laser deposition method was used to cover a S 235 carbon steel sample with a thin nickel film, using laser ablation and thus obtaining a protective layer, offering increased corrosion resistance. S 235 carbon steel samples were covered on a single face with thin films. The material used for laser ablation is nickel. The samples were immersed
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15

Frenkel, Val S., Alexey G. Pervov, Alexey P. Andrianov, and Vladimir A. Golovesov. "Investigation of antiscalant dosing influence on scaling process in reverse osmosis facilities and membrane surface adsorption." Vestnik MGSU, no. 6 (June 2019): 722–33. http://dx.doi.org/10.22227/1997-0935.2019.6.722-733.

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Introduction. Understanding of crystal growth mechanism enables to develop efficient tools to control scaling and improve the process of treatment using membranes and increasing the amount of filtrate output. This investigation is aimed at studying an antiscalant behaviour in reverse osmosis (RO) process when treating ground water. Experimental dependences of calcium carbonate scaling efficiency on antiscalant dosage were found. Rates of adsorption on crystal surface of scaling deposit and on membrane surfaces were compared. Dependences of rates of inhibitor adsorption on crystal surface versu
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16

Ma, Pingsha. "Review of directional liquid transport on surfaces with different structures." Theoretical and Natural Science 18, no. 1 (2023): 71–75. http://dx.doi.org/10.54254/2753-8818/18/20230322.

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Directional liquid transport has many cutting-edge applications, such as fog collection, agricultural drip irrigation, biochemical microreactors, water harvesting, non-powered micro-drug delivery, thin-film lubrication etc. There are many surfaces or linear structures in the natural systems can occur directional transport of water. In this paper, two bionic structures inspired by natural structures and two artificially fabricated surface structures are presented and their flow laws and mechanical mechanisms are described. Thereby, it is analysed that surface-driven external forces, such as the
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17

Korshin, G. V., J. F. Ferguson, and M. E. Rock. "Influence of natural organic matter on the morphology of corroding copper surface." Proceedings, annual meeting, Electron Microscopy Society of America 52 (1994): 678–79. http://dx.doi.org/10.1017/s0424820100171122.

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Natural organic matter (NOM) is a ubiquitous and important component of natural waters. Polymeric species related to humus found in soils constitute the major part of NOM. NOM is of major importance for the speciation of metals in waters but its effects on metal corrosion are little known. The influence of NOM on the morphology of corroding copper surfaces is discussed in this communication. The studies were performed for copper coupons exposed for 7 weeks to waters supporting an intense localized corrosion attack called pitting. Two types of waters were used: highly mineralized water at pH cl
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18

Salvador, Daniel, Maria Filomena Caeiro, Joana Aguilar, Maria João Benoliel, and Célia Neto. "Deteção de vírus entéricos em amostras de água natural superficial e de água para consumo humano." Águas e Resíduos, no. 7 (June 5, 2020): 5–14. http://dx.doi.org/10.22181/aer.2020.0701.

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19

Feng, Limin, Yang Yu, Huiwang Gao, and Xiaohong Yao. "Surface water formation on the natural surface under supersaturation: from local water balance to air pollutant deposition." Air Quality, Atmosphere & Health 13, no. 12 (2020): 1477–85. http://dx.doi.org/10.1007/s11869-020-00901-y.

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20

Ciufu, Alina Georgiana, Cristian Eugen Raducanu, Oana Cristina Parvulescu, Doinita Roxana Cioroiu, and Tanase Dobre. "Natural Wool for Removal of Oil Spills from Water Surface." Revista de Chimie 70, no. 11 (2019): 3977–80. http://dx.doi.org/10.37358/rc.19.11.7685.

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Romanian Merino wool was tested as a natural sorbent for oil spill cleanup. Rebco crude oil placed in distilled water was used as an oily water model. Experiments of batch sorption were performed under various conditions. The effects of process factors, i.e., initial density of packed bed sorbent (0.05-0.99 g/cm3), initial volume ratio of oil and water (0.25 and 0.14 cm3/cm3), and contact surface between adsorbent and oily water, on wool sorption capacity (6.4-11.8 g/g) were evaluated. Experimental data were fitted using pseudo-first order rate and pseudo-second order rate models.
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21

Myina, O. M., and I. S. Myina. "Thermodynamic Entropy: A Natural Metric for Landcover Classification." Asian Journal of Research in Agriculture and Forestry 9, no. 4 (2023): 91–109. http://dx.doi.org/10.9734/ajraf/2023/v9i4237.

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Most landcover (LC) studies employ physical characteristics involving spectral reflectance. This study employs the concept of energy and entropy for LC classification. Satellite imageries from Landsat-8, the Operational Land Imager (OLI) and the Thermal Infra-Red Sensor (TIRS) captured at 100 m for three years (2013, 2015 and 2017) and resampled to a spatial resolution of 30 m for multispectral measurements were acquired. The normalized difference vegetation index (NDVI) of the study area was computed for both the wet (September/October) and dry (March) seasons of years 2013, 2015 and 2017, re
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22

Burgoon, Peter S., Robert H. Kadlec, and Mike Henderson. "Treatment of Potato Processing Wastewater with Engineered Natural Systems." Water Science and Technology 40, no. 3 (1999): 211–15. http://dx.doi.org/10.2166/wst.1999.0164.

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A full-scale integrated natural system has been used to treat high strength potato processing water for 2 years. The integrated natural system consists of free water surface and vertical flow wetlands, and a facultative storage lagoon. Influent wastewater averages 2800 mg/L COD, 150 mg/L TN and 350 mg/L TSS. Approximately 5300 m3/d of wastewater flows through the treatment system annually. The treatment objective is a 53% reduction in total nitrogen. The wastewater application permit requires an annual nitrogen load of 500 kg/ha yr on 213 hectares of land used to grow alfalfa and other fodder
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23

Zikirova, Komila Ya, and Ugloy B. Tursunboeva. "THE ROLE OF GAT TECHNOLOGIES IN THE STUDY OF SURFACE WATER BODIES IN JIZZAKH REGION." Journal of Geography and Natural Resources 02, no. 01 (2022): 121–29. http://dx.doi.org/10.37547/supsci-jgnr-02-01-17.

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24

Aelion, C. Marjorie, Melissa R. Engle, and Hongbo Ma. "Use ofNNatural Abundance and N Species Concentrations to Assess N-Cycling in Constructed and Natural Coastal Wetlands." Applied and Environmental Soil Science 2010 (2010): 1–9. http://dx.doi.org/10.1155/2010/371259.

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Natural abundance of N stable isotopes used in combination with concentrations may be useful indicators of N-cycling in wetlands. Concentrations andNsignatures ofNO3−,NH4+, and sediment organic nitrogen (SON) were measured in two impacted coastal golf course retention ponds and two natural marshes. LimitedNO3−was detected in natural site surface water or pore water, but both isotopic signature and concentrations ofNO3−in surface water of impacted sites indicated anthropogenic inputs. In natural sites,NH4+concentrations were greatest in deeper pore water and least in surface water, suggesting d
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25

Haryono, M. B., K. W. Y. Lin, K. K. S. Thant, K. Subannajui, and T. Waritanant. "Fast Fabrication of Superhydrophobic Copper Alloy Fabricated by Commercial Fiber Laser-1062 nm and Stability of Superhydrophobic Surface." Journal of Physics: Conference Series 2696, no. 1 (2024): 012001. http://dx.doi.org/10.1088/1742-6596/2696/1/012001.

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Abstract We present a fast, straightforward fabrication method to produce stable superhydrophobic copper alloy surfaces. The technique consists of irradiating copper with a fiber laser and then coating the surface with ethanol. The laser ablation generates surface morphology on the copper surfaces, such as line and grid patterns. We can modify the wetting properties and surface morphology by changing the step size. We assessed the change of the water contact angle on the raw surface, laser-based textures after natural aging, and laser-based textures post-low annealing. After that, we measured
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26

Maeng, S. K., S. K. Sharma, A. Magic-Knezev, and G. Amy. "Fate of effluent organic matter (EfOM) and natural organic matter (NOM) through riverbank filtration." Water Science and Technology 57, no. 12 (2008): 1999–2007. http://dx.doi.org/10.2166/wst.2008.613.

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Understanding the fate of effluent organic matter (EfOM) and natural organic matter (NOM) through riverbank filtration is essential to assess the impact of wastewater effluent on the post treatment requirements of riverbank filtrates. Furthermore, their fate during drinking water treatment can significantly determine the process design. The objective of this study was to characterise bulk organic matter which consists of EfOM and NOM during riverbank filtration using a suite of innovative analytical tools. Wastewater effluent-derived surface water and surface water were used as source waters i
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Kuchkarov, Akmaljon, Olmosbek Mamatov, Nodir Juraboev, Zafar Obidjonov, Nodira Muzaffarova, and Shoxrux Qosimov. "Modelling solar water desalination system using natural convection." E3S Web of Conferences 508 (2024): 02004. http://dx.doi.org/10.1051/e3sconf/202450802004.

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In recent times, solar energy has emerged as one of the most promising energy sources. Numerous scholars and researchers are exploring various applications of solar energy. This presented work focused on solar water desalination system to evaluate its thermal performance in natural convection mode. Three-dimensional Computational fluid dynamics CFD model is built in Comsol Multiphysics 6.1. Numerical model simulations have been carried out by using Heat transfer in Solid &Fluid and Laminar flow interfaces. The surface temperature varies between 19.5℃ and 102℃ while the velocity magnitude w
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28

Foday, Edward Hingha, Taiwo Sesay, Emmanuel Bartholomew Koroma, et al. "Biotemplate Replication of Novel Mangifera indica Leaf (MIL) for Atmospheric Water Harvesting: Intrinsic Surface Wettability and Collection Efficiency." Biomimetics 7, no. 4 (2022): 147. http://dx.doi.org/10.3390/biomimetics7040147.

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Water shortage has become a global crisis that has posed and still poses a serious threat to the human race, especially in developing countries. Harvesting moisture from the atmosphere is a viable approach to easing the world water crisis due to its ubiquitous nature. Inspired by nature, biotemplate surfaces have been given considerable attention in recent years though these surfaces still suffer from intrinsic trade-offs making replication more challenging. In the design of artificial surfaces, maximizing their full potential and benefits as that of the natural surface is difficult. Here, we
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Zhao, Zikun, Huanwei Li, Xiaoyan Song, and Wenyi Sun. "Dynamic Monitoring of Surface Water Bodies and Their Influencing Factors in the Yellow River Basin." Remote Sensing 15, no. 21 (2023): 5157. http://dx.doi.org/10.3390/rs15215157.

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Surface water bodies exhibit dynamic characteristics, undergoing variations in size, shape, and flow patterns over time due to numerous natural and human factors. The monitoring of spatial-temporal changes in surface water bodies is crucial for the sustainable development and efficient utilization of water resources. In this study, Landsat series images on the Google Earth Engine (GEE) platform, along with the HydroLAKES and China Reservoir datasets, were utilized to establish an extraction process for surface water bodies from 1986 to 2021 in the Yellow River Basin (YRB). The study aims to in
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30

Turcotte, Patrice, and Christian Gagnon. "Transformation of Engineered Copper Oxide Nanoparticles in Surface Waters." Journal of Xenobiotics 14, no. 4 (2024): 1406–14. http://dx.doi.org/10.3390/jox14040078.

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Copper oxide nanoparticles (CuO-NPs) are widely used for their catalytic properties, conductive capacity, and innovations in the fields of superconductors, alloys, and solar energy sensors. To better understand the impact of water chemistry on the stability of CuO nanoparticles, a series of measurements were carried out on nanoparticles suspended in pure water, natural water, and water enriched with natural organic matter fulvic acid (FA). ICP-MS characterization in single-particle mode (SP-ICP-MS) was performed to determine the stability or transformation of nanoparticles in contrasting water
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31

Wang, Xiao Xiang, Lei Xie, Cheng Luo, and Ri Zhi Wang. "Natural Nacre Coatings on Titanium Implant Grown by Fresh Water Bivalve Shell." Key Engineering Materials 309-311 (May 2006): 743–46. http://dx.doi.org/10.4028/www.scientific.net/kem.309-311.743.

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Titanium dental implant screws were implanted into the pearl sacs of a fresh water bivalve (hyriopsis cumingii Lea) by replacing the pearls. After 45 days of cultivation, the implant surfaces were deposited with a nacre coating with iridescent luster. The coating was about 200-600 µm in thickness and composed of a laminated nacreous layer and a transitional non-laminated layer that consisted mainly of vaterite and calcite polymorphs of calcium carbonate. The transitional layer was around 2-10 µm thick in the convex and flat region of the implant surface and could form close contact with titani
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Wang, Yong, Shanlong Lu, Feng Zi, et al. "Artificial and Natural Water Bodies Change in China, 2000–2020." Water 14, no. 11 (2022): 1756. http://dx.doi.org/10.3390/w14111756.

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Artificial and natural water bodies, such as reservoirs, ponds, rivers and lakes, are important components of water-related ecosystems; they are also important indicators of the impact of human activities and climate change on surface water resources. However, due to the global and regional lack of artificial and natural water bodies data sets, understanding of the changes in water-related ecosystems under the dual impact of human activities and climate change is limited and scientific and effective protection and restoration actions are restricted. In this paper, artificial and natural water
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33

Joshi, Yogendra, and Benjamin Gebhart. "Transition of transient vertical natural-convection flows in water." Journal of Fluid Mechanics 179 (June 1987): 407–38. http://dx.doi.org/10.1017/s0022112087001599.

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Experimental results and interpretations are given for transient natural convection adjacent to a suddenly heated flat vertical surface in quiescent water. The 1.24 m high surface resulted in laminar, transition and turbulent regimes downstream, in transients and in steady state, over a wide range of surface-energy input rates. Flows were visualized and velocity and temperature measurements made at various downstream locations, after imposing a uniform internal-energy generation rate within the very thin surface. Upflow development from quiescence to steady state was found to depend strongly o
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Yu, He Ping, Zong Qiang Zeng, Hong Chao Liu, and Yong Yue Luo. "Surface Modification of Natural Rubber Latex Film Using Photocrosslinkable Chitosan." Advanced Materials Research 482-484 (February 2012): 824–29. http://dx.doi.org/10.4028/www.scientific.net/amr.482-484.824.

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Surface modifications of natural rubber latex films were carried out to improve the hydrophilicity by UV-induced immobilization of water-soluble butyryl derivative of chitosan using the photosensitive hetero-bifunctional crosslinking reagent, 4-azidobenzoic acid. The effects of the concentration of modified chitosan solution and UV irradiation time on the water contact angle values of natural rubber latex films were studied. ATR-FTIR analyses confirmed that the O-butylrylchitosan molecules were covalently bonded onto the surface of natural rubber latex film. The water contact angle value of na
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35

Lei, Baojie, Kim Myung-Soo, and Nurjahan. "Prediction of the Impact of Land Usage Changes on Water Pollution in Public Space Planning with Machine Learning." Mathematical Problems in Engineering 2022 (May 29, 2022): 1–9. http://dx.doi.org/10.1155/2022/6276909.

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In urban public space planning, changes in land use, structure, and construction impact the urban environment to a certain degree. Land usage changes the urban surface water environment by impacting it through numerous ways. This paper studies about prediction of land use changes on surface water pollution in public space planning. This paper analyzes the characteristics of land use changes in public space planning from the quantitative characteristics of land use types, land use structure characteristics, and land usage degree in different years. The protection of natural resources is importa
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Li, Xuan, and John J. Lenhart. "Aggregation and Dissolution of Silver Nanoparticles in Natural Surface Water." Environmental Science & Technology 46, no. 10 (2012): 5378–86. http://dx.doi.org/10.1021/es204531y.

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37

Thurman, E. M. "Surface and colloid chemistry in natural waters and water treatment." Chemical Geology 95, no. 3-4 (1992): 362–63. http://dx.doi.org/10.1016/0009-2541(92)90023-x.

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38

Thakur, V. K., A. S. Singha, and M. K. Thakur. "Surface Modification of Natural Polymers to Impart Low Water Absorbency." International Journal of Polymer Analysis and Characterization 17, no. 2 (2012): 133–43. http://dx.doi.org/10.1080/1023666x.2012.640455.

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39

Chaplina, T. O., and V. P. Pakhnenko. "Peculiarities of surface water purification from hydrocarbons using natural sorbents." Theoretical and Applied Ecology, no. 4 (2022): 38–44. http://dx.doi.org/10.25750/1995-4301-2022-4-038-044.

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40

Lei, Bingbing, Bin Wang, Mingli Zhang, Zhixiong Zhou, Guang Li, and Guodong Yue. "Thermal-Moisture Dynamics at Different Underlying Surfaces in Permafrost Regions of the Central Tibetan Plateau by considering the Effect of Rainfall." Geofluids 2022 (July 28, 2022): 1–16. http://dx.doi.org/10.1155/2022/2230372.

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The Qinghai-Tibetan Plateau (QTP) has undergone an increase in rainfall and a drastic alteration in the moisture-heat regime in active layers and engineering. To investigate the water and heat responses of natural ground and engineering to rainfall, the differences in energy on the ground surface and the thermal-moisture dynamics of different permafrost underlying surfaces were discussed. Based on the meteorological data in 2013 observed at the Beiluhe observation station, three types of underlying surfaces (i.e., natural ground, asphalt pavement, and gravel pavement) were selected to compare
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41

Haines, Keith, and Chris Old. "Diagnosing Natural Variability of North Atlantic Water Masses in HadCM3." Journal of Climate 18, no. 12 (2005): 1925–41. http://dx.doi.org/10.1175/jcli3348.1.

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Abstract A study of thermally driven water mass transformations over 100 yr in the ocean component of the Third Hadley Centre Coupled Ocean–Atmosphere General Circulation Model (HadCM3) is presented. The processes of surface-forced transformations, subduction and mixing, both above and below the winter mixed layer base, are quantified. Subtropical Mode Waters are formed by surface heat fluxes and subducted at more or less the same rate. However, Labrador Seawater and Nordic Seawater classes (the other main subduction classes) are primarily formed by mixing within the mixed layer with very litt
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42

Pechkina, Yulia, Elena Shinkaruk, Roman Kolesnikov, Aleksandr Krasnenko, and Elena Agbalyan. "The quality of surface water in Salekhard." E3S Web of Conferences 265 (2021): 05005. http://dx.doi.org/10.1051/e3sconf/202126505005.

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The work includes the natural waters’ quality control within the precincts of Salekhard. Shaytanka River, Poluy River and Lebyazhye Lake were discovered. By waters’ quality control was used pollution index. The work is done in terms of Scientific work (NIR) “Assessment of the health risk of the population of the Yamalo-Nenets Autonomous District in connection with the impact of chemical environmental factors”.
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43

Stabnikova, Olena, Viktor Stabnikov, Andriy Marinin, Maris Klavins, Linards Klavins, and Ashok Vaseashta. "Microbial Life on the Surface of Microplastics in Natural Waters." Applied Sciences 11, no. 24 (2021): 11692. http://dx.doi.org/10.3390/app112411692.

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Major water-polluting microplastics (for example, polyethylene, polypropylene and others) have lower density than water. Therefore, they are concentrated in the neustonic layer near the water-air interface altogether with dissolved or colloidal natural organic matter, hydrophobic cells and spores of bacteria. This can cause environmental and public health problems because the floating micro- and nanoparticles of plastics could be coated with biofilm of hydrophobic and often putative pathogenic bacteria. Biofilm-coated microplastics are more attractive for consumption by aquatic animals than pu
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44

Wang, Jingxuan, Jiyu Gan, Chen Zhang, Wenqian Hong, and Feiyang Jiang. "Natural and biomimetic superhydrophobic surface: Review of the manufacturing techniques." Applied and Computational Engineering 7, no. 1 (2023): 464–77. http://dx.doi.org/10.54254/2755-2721/7/20230406.

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Nature has produced many materials, things, and processes at all scales, from the large to the tiny. The newly growing area of biomimicry enables the development of materials, tools, and techniques with desired features by mimicking biology or nature. Consequently, the traits of animals, plants, and insects in nature have drawn much attention. Because of its surface roughness and epicuticular waxes, the lotus leaf, for instance, has a superhydrophobic surface. These surfaces feature a water-repellent effect and high and low-contact angle hysteresis. This essay briefly introduces the theoretica
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45

Safarov, R. Z., G. E. Mendybayeva, and E. H. Mendybaev. "Analysis and assessment of surface water quality in the Ilek river basin." BULLETIN of the L.N. Gumilyov Eurasian National University. Chemistry. Geography. Ecology Series 140, no. 3 (2022): 55–63. http://dx.doi.org/10.32523/2616-6771-2022-140-3-55-63.

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The article is devoted to the study of hydrochemical indicators of surface waters of the Ilek River and large tributaries. The study was conducted based on the results of expeditionary observations in 2020-2021. Surface water samples were taken at key sites for chemical analysis of constituents. The scientific article describes natural and technogenic factors influencing the geosystems of the Ilek river basin. The paper reveals the dependence of surface water pollution on the impact of external technogenic factors. The study showed a direct dependence of surface water on the industry. In the u
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46

Zobkov, Mikhail. "AUTOMATIC WATER OBJECTS CLASSIFICATION AND NATURAL WATER QUALITY ASSESSMENT." Environment. Technology. Resources. Proceedings of the International Scientific and Practical Conference 2 (August 3, 2015): 56. http://dx.doi.org/10.17770/etr2009vol2.1038.

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Assessment of water quality and classification of water object plays significant role in an environmental and ecology study. Water quality evaluation by hydrochemical parameters is fairly difficult and required a long period of time. Automatic expert system was created to solve this problem. Automatization of objects classification and quality assessment for humus zone based on Karelian water bodies research data are presented in this study. Automation algorithms of the surface water geochemical classification based on the principal chemical transactions was obtained during research. Classific
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47

Litynska, Marta. "MICROPLASTICS IN NATURAL WATER: SOURCES AND DETERMINATION." WATER AND WATER PURIFICATION TECHNOLOGIES. SCIENTIFIC AND TECHNICAL NEWS 34, no. 3 (2023): 3–9. http://dx.doi.org/10.20535/2218-930032022277748.

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The paper is devoted for origin of microplastics in aquatic environment and possible methods of characterization and analysis. According to US National Oceanic and Atmospheric Administration, microplastics are synthetic organic polymer particles with a size less than 5 mm. Microplastics pollution is a significant ecological problem in the world. A lot of surface waters are significantly polluted by various types of microplastics. These pollutants were found in rivers, lakes, oceans, sediments, wastewater, drinking water and bottled water. But in Ukraine microplastic problem of surface water do
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48

Teisala, Hannu, Mikko Tuominen, and Jurkka Kuusipalo. "Adhesion Mechanism of Water Droplets on Hierarchically Rough Superhydrophobic Rose Petal Surface." Journal of Nanomaterials 2011 (2011): 1–6. http://dx.doi.org/10.1155/2011/818707.

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Extremely hydrophobic surfaces, on which water droplets sit in a spherical shape leaving air entrapped into the roughness of the solid, are often called superhydrophobic. Hierarchically rough superhydrophobic surfaces that possess submicron scale fine structures combined with micron scale structures are generally more hydrophobic, and water droplet adhesion to those surfaces is lower in comparison with surfaces possessing purely micrometric structures. In other words, usually a fine structure on a superhydrophobic surface reduces liquid-solid contact area and water droplet adhesion. Here we sh
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Malyshkina, E. S., E. I. Vyalkova, and E. Yu Osipova. "WATER PURIFICATION WITH NATURAL SORBENTS." Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta. JOURNAL of Construction and Architecture, no. 1 (February 27, 2019): 188–200. http://dx.doi.org/10.31675/1607-1859-2019-21-1-188-200.

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Industrial waste can be considered as technological and economical raw materials in related industries, and their disposal in compliance with environmental legislation can be environmentally efficient. Nowadays, researchers search for an effective but relatively cheap absorption material to extract various contaminants from water. Of great greatest interest are the industrial waste that can be used in wastewater treatment technology as a secondary raw material. As a rule, active coals are used in drinking water systems and deep wastewater treatment. In the Tyumen region, this type of sorbent i
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Maguire, R. J. "The Importance of Pesticide Volatilization from the Surface Microlayer of Natural Waters after Aerial Spraying." Water Science and Technology 25, no. 11 (1992): 111–16. http://dx.doi.org/10.2166/wst.1992.0281.

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Fenitrothion [O,O-dimethyl O-(p-nitro-m-tolyl) phosphorothionate] and deltamethrin [(S)-α-cyano-3-phenoxybenzyl (lR,3R)-cis-2,2-dimethyl-3-(2,2-dibromovinyl)cyclopropanecarboxylate]in formulations sprayed on the surface of natural water in the laboratory disappeared from water far faster than formulations injected below the surface of the water. Half-lives of disappearance from surface-sprayed water were less than 2.5 h, compared to 5 - 60 d for disappearance from subsurface-injected water. Analyses of air filters showed that the disappearance from surface-sprayed samples was due to volatiliza
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