Results 41 to 50 of about 1,392,797 (339)

Pollution, mortality and optimal environmental policy [PDF]

open access: yes, 2012
We study an overlapping generations economy in which environmental degradation results from economic activity and affects agents' uncertain lifetimes. Life expectancy depends positively on economic activity and negatively on the stock of pollution.
Goenka, A., Jafarey, S., Pouliot, W.
core  

Environmental pollution - parasitic pollution

open access: yesSustainable use and protection of animal world in the context of climate change, 2021
The paper presents the danger caused by environmental pollution (water, soil, vegetables, fruits, animal and plant products) with parasitic elements eliminated and spread by humans and animals, as well as the importance of conducting research in this field. An important role is also played by the high level of infestation, with various parasitic agents,
openaire   +1 more source

Understanding bio‐based polymers: A study of origins, properties, biodegradation and their impact on health and the environment

open access: yesFEBS Open Bio, EarlyView.
This review provides an overview of bio‐based polymer sources, their unique functional properties and their environmental impact, and addresses their role as sustainable alternatives. It discusses end‐of‐life options, including composting and anaerobic digestion for renewable energy.
Sabina Kolbl Repinc   +8 more
wiley   +1 more source

Thresholds in aridity and soil carbon-to-nitrogen ratio govern the accumulation of soil microbial residues

open access: yesCommunications Earth & Environment, 2021
Aridity, soil nutrient stoichiometry and bulk carbon content are reliable predictors of microbial residue accumulation in soil carbon pools, according to a meta-analysis of amino sugar concentrations in grasslands, woodlands and forests.
Zhiguo Hao   +10 more
doaj   +1 more source

Reducing environmental pollution caused by construction plant [PDF]

open access: yes, 2001
Quantifiable data produced in a national report by the Environment Agency of England and Wales entitled ‘Water pollution incidents in England and Wales 1997’ and published by the Stationery Office in 1998, identifies that of over 3,723 substantiated ...
Jackson, F, Morledge, R
core   +1 more source

Aerosols and environmental pollution

open access: yesNaturwissenschaften, 2009
The number of publications on atmospheric aerosols has dramatically increased in recent years. This review, predominantly from a European perspective, summarizes the current state of knowledge of the role played by aerosols in environmental pollution and, in addition, highlights gaps in our current knowledge.
Λαζαριδης Μιχαλης(http://users.isc.tuc.gr/~mlazaridis)   +2 more
openaire   +4 more sources

Mitigation of Cracks in High‐Performance Nickel‐Based Superalloys in Powder Bed Fusion Laser Beam of Metals Using a Metal Matrix Composite Approach

open access: yesAdvanced Engineering Materials, EarlyView.
High‐performance nickel‐based superalloys are often not processible in additive manufacturing (AM) due to hot cracking. The findings in this manuscript propose an efficient method to mitigate cracking and enhance mechanical properties of these alloys by producing a metal matrix composite, contributing to the material and process perspective of the AM ...
Klaus Büßenschütt   +3 more
wiley   +1 more source

Laboratory‐Scale Procedure for Evaluating the Flux Efficiency on Melt Cleanliness and Tensile Properties of Recycled Aluminum Alloys

open access: yesAdvanced Engineering Materials, EarlyView.
A laboratory‐scale procedure is developed to evaluate the efficiency of melt‐cleaning and drossing fluxes during aluminium alloy recycling, studying their effects on melt cleanliness and tensile properties of secondary foundry alloys. This work provides a practical tool for foundries and aluminium refiners to assess the efficiency of salt fluxes in ...
Veronica Milani, Giulio Timelli
wiley   +1 more source

Numerical Model and Experimental Validation of Composite Metal Foam in Protecting Carbon Steel Against Puncture

open access: yesAdvanced Engineering Materials, EarlyView.
The puncture prevention and energy absorption performance of composite metal foam (CMF) are studied experimentally and numerically for hazardous materials transportation protection. The numerical model implementing air within the CMF (nonhomogeneous model using fluid cavity technique) predicts puncture more accurately compared to the homogeneous CMF ...
Aman Kaushik, Afsaneh Rabiei
wiley   +1 more source

Reactive aldehyde chemistry explains the missing source of hydroxyl radicals

open access: yesNature Communications
Hydroxyl radicals (OH) determine the tropospheric self-cleansing capacity, thus regulating air quality and climate. However, the state-of-the-art mechanisms still underestimate OH at low nitrogen oxide and high volatile organic compound regimes even ...
Xinping Yang   +17 more
doaj   +1 more source

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