Results 11 to 20 of about 166,770 (342)

Investigation of the Uniformity of Gel Shrinkage by Imaging Tracer Particles Using X‐Ray Microtomography

open access: yesAdvanced Engineering Materials, EarlyView., 2023
A novel method for tracking structural changes in gels using widely accessible microcomputed tomography is presented and validated for various hydro‐, alco‐, and aerogels. The core idea of the method is to track positions of micrometer‐sized tracer particles entrapped in the gel and relate them to the density of the gel network.
Anja Hajnal   +3 more
wiley   +1 more source

Niche separation and weak interactions in the high tidal zone of saltmarsh‐mangrove mixing communities

open access: yesEcology and Evolution, 2021
Saltmarsh‐mangrove ecotones occur at the boundary of the natural geographic distribution of mangroves and salt marshes. Climate warming and species invasion can also drive the formation of saltmarsh‐mangrove mixing communities.
Patrick Ndayambaje   +6 more
doaj   +1 more source

Pollution and Pollution Control [PDF]

open access: yesProceedings of Fall Meeting of the Society of Petroleum Engineers of AIME, 1969
Pollution - the very word brings to mind in each of us a variety of abuses that man has perpetrated on his fellow man. lie has fouled the air, polluted streams and lakes and made vast dumping grounds out of once scenic areas. Water is impossible to destroy.
openaire   +2 more sources

Preparation and adsorption properties of magnetic chitosan/sludge biochar composites for removal of Cu2+ ions

open access: yesScientific Reports, 2023
The magnetic chitosan/sludge biochar composite adsorbent was prepared using chitosan, Fe3O4, and sludge biochar as raw materials. The composite adsorbent was able to achieve rapid solid–liquid separation under an applied magnetic field.
Meng Zhang   +4 more
doaj   +1 more source

Carbon sources of benthic fauna in temperate lakes across multiple trophic states [PDF]

open access: yesBiogeosciences, 2021
Previous studies have shown that microbially produced methane can be a dominant carbon source of lacustrine sedimentary macrofauna in eutrophic lakes, most likely through grazing on methane-oxidizing bacteria.
A. Fiskal   +12 more
doaj   +1 more source

Novel Regression and Least Square Support Vector Machine Learning Technique for Air Pollution Forecasting [PDF]

open access: yes, 2023
Air pollution is the origination of particulate matter, chemicals, or biological substances that brings pain to either humans or other living creatures or instigates discomfort to the natural habitat and the airspace. Hence, air pollution remains one of the paramount environmental issues as far as metropolitan cities are concerned.
arxiv   +1 more source

Air pollution: the "classical" pollutants. [PDF]

open access: yesBMJ, 1981
Few disasters can have led to such great good as the four-day London "smog" of December 1952. Though its extreme concentrations of smoke and sulphur dioxide appear to have caused up to 4000 extra deaths,1 it provided the impetus for the Clean Air Act 1956.
openaire   +5 more sources

Impacts of Sulfuric Acid on the Stability and Separation Performance of Polymeric PVDF-Based Membranes at Mild and High Concentrations: An Experimental Study

open access: yesMembranes, 2020
This study investigated the effects of an aqueous acidic solution at typical concentrations on polymeric polyvinylidene fluoride (PVDF)-based membranes.
Kayode H. Lasisi   +5 more
doaj   +1 more source

Sorting states of environmental DNA: Effects of isolation method and water matrix on the recovery of membrane‐bound, dissolved, and adsorbed states of eDNA

open access: yesEnvironmental DNA, 2023
Environmental DNA (eDNA) once shed can exist in numerous states with varying behaviors including degradation rates and transport potential. In this study, we consider three states of eDNA: (1) a membrane‐bound state referring to DNA enveloped in a ...
Anish Kirtane   +2 more
doaj   +1 more source

Water-soluble and Water-dispersible Polymers Used in Commercial Agricultural Formulations: Inventory of Polymers and Perspective on their Environmental Fate

open access: yesCHIMIA, 2023
Agricultural formulations contain water-soluble and water-dispersible polymers (WSPs and WDPs) to increase the application efficiency of the active ingredients (e.g. pesticides and fertilizers).
Kevin Kleemann, Michael Sander
doaj   +1 more source

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