Evaluation of the Mechanical and Environmental Properties of Self-Compacting Mortars with Raw Harbour Dredging Sediments (SCMs)

Author(s):  
N. Philippe Ouedraogo ◽  
Frédéric Becquart ◽  
Mahfoud Benzerzour ◽  
Nor-Edine Abriak
Author(s):  
K.G. Abdulminev ◽  
◽  
A.I. Kolyshkina ◽  
V.R. Tukaev ◽  
O.A. Vorobyova ◽  
...  

2020 ◽  
Vol 5 (4) ◽  
pp. 223-229
Author(s):  
Yuliia Slyva ◽  
◽  
Oleksiy Verenikin ◽  

The research on the development of an innovative formula of a synthetic detergent with improved environmental properties, which meet the environmental standard of SOU OEM 08.002.12.065:2016 "Detergents and cleaning products. Environmental criteria for life cycle assessment" is carried out. The accumulated theoretical and practical experience is generalized, the general scheme of designing and development of new goods taking into account features of detergents with the improved ecological characteristics is created.


2019 ◽  
Vol 18 (8) ◽  
pp. 1781-1788
Author(s):  
Vladana N. Rajakovic-Ognjanovic ◽  
Milica Karanac ◽  
Jasna Smolar ◽  
Ana Petkovsek ◽  
Maja Dolic ◽  
...  

Author(s):  
Michael Gochfeld ◽  
Robert Laumbach

Building on the principles of toxicology, this chapter describes chemicals by structure, source, use, mechanism of action, environmental properties, and target organ. Major advances in toxic effects include more detailed understanding of the mechanisms by which toxic chemicals damage receptors at the subcellular, cellular, and organ level. The chapter describes properties of various types of inorganic and organic chemicals and their adverse health effects. It discusses asphyxiants, such as carbon monoxide and hydrogen sulfide; heavy metals, such as lead, mercury, and cadmium; organic solvents, such as benzene and trichlorethylene; pesticides, including chlorinated hydrocarbons and organophosphates; and a variety of other toxic chemicals to which people are exposed in the home, community, or workplace environment. Several cases are presented to illustrate various concepts concerning chemical hazards in occupational and environmental health.


Author(s):  
J. Donald Hughes

This chapter deals with ancient warfare and the environment. Hunting was often been considered as a form of warfare, and art frequently portrayed humans in battle with animals. Armed conflict had its direct influences on the environment. Along with damage to settled agriculture, warfare had affected other lands such as pastures, brush lands, and forests. It is noted that birds, pigs, bears, rodents, snakes, bees, wasps, scorpions, beetles, assassin bugs, and jellyfish have been employed as weaponized animals in ancient warfare, which, in the Mediterranean area and Near East, had vital environmental properties. The direct effects of battle have been shown by ancient historians, but just as important were the influences of the military-oriented organization of societies on the natural environment and resources.


2016 ◽  
Vol 129 ◽  
pp. 35-39 ◽  
Author(s):  
Ruben Snellings ◽  
Özlem Cizer ◽  
Liesbeth Horckmans ◽  
Paweł T. Durdziński ◽  
Philippe Dierckx ◽  
...  

2021 ◽  
Author(s):  
David Dellong ◽  
Florent Le Courtois ◽  
Jean-Michel Boutonnier ◽  
Bazile G. Kinda

<p>Maps of underwater noise generated by shipping activity became a useful tool to support international regulations on marine environments. They are used to infer the risk of impact on biodiversity. Maps are performed by 1) computing the emitted noise levels from ships, 2) propagating the acoustic signal in the environment and 3) using localized measurements to validate the results. Because of mismatches in environmental data and a limited number of measurements, noise maps remain highly uncertain.</p><p>In this work, the uncertainty of the noise maps is investigated through the potential complexity of soundscape. The acoustic signal at each receiving cell is computed from the convolution of the source of the ships by the transmission losses of the environment. Complexity is mapped by computing Shannon's entropy of the transmission losses for each receiver. High entropy areas only reflect high shipping densities and favorable acoustic propagation properties of the local environment. Low entropy areas reflect: low shipping density and/or poor acoustic propagation properties. An area with high shipping densities and poor acoustic propagation properties will still have low entropy values.</p><p>Entropy maps allow classifying areas depending on their environmental features. Thus, scenarios of uncertainty are defined. Results highlight the necessity to consider the diversity of the environmental properties in support of the production of noise maps. The methodology could help in optimizing spatial and temporal resolution of map computations, as well as optimizing acoustic monitoring strategies.</p>


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