Results 71 to 80 of about 42,471 (271)
Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT The growing impacts of climate change and energy scarcity demand environmentally sustainable refrigeration solutions. This study investigates eco‐friendly refrigerants (R152a, R290 and R600a) and their optimized ternary mixture as alternatives to R134a. Four blend compositions were analysed using experimental testing and REFPROP 10.0 modelling
M. Periyasamy, P. Senthilkumar
wiley +1 more source
Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT Ag–Fe bimetallic nanoparticles (alloy and core–shell structures) were synthesized using Grewia optiva leaf extract through a green, phytochemical‐mediated approach. The effects of pH, temperature, extract concentration, and Ag:Fe molar ratio on nanoparticle formation were systematically optimized, enabling size‐controlled and morphologically ...
Sehrish Asad +6 more
wiley +1 more source
Computational screening of MXene-based catalysts for chlorinated hydrocarbons removal
JPhys MaterialsChlorinated hydrocarbons, widely used in industrial applications, pose significant environmental and health risks due to their persistence and toxicity. Conventional remediation methods often face efficiency limitations, necessitating the exploration of ...
Miroslav Kolos, František Karlický
doaj +1 more source
Acta Agriculturae Slovenica, 2000 In the period 1996 – 1998, 348 samples of different plants (potato, grapes, maize, apples, carrots, lettuce, cabbage) were collected directly from their growth places.
Gregor UREK, Ana GREGORČIČ
doaj +1 more source
Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT Biomass energy plays a critical role in alleviating environmental pressures. However, its relatively high content of alkali metals (especially for potassium) would cause ash‐related issues during combustion. To mitigate these issues, the potassium migration behaviors during chestnut shell (CS) conversion and the modification mechanisms of ...
Meijie Zhou +6 more
wiley +1 more source
Environmental Behavior, Sources, and Effects of Chlorinated Polycyclic Aromatic Hydrocarbons
The Scientific World Journal, 2007 The environmental sources and behaviors of chlorinated 2- to 5-ring polycyclic aromatic hydrocarbons (ClPAHs). ClPAHs are ubiquitous contaminants found in urban air, vehicle exhaust gas, snow, tap water, and sediments.
Takeshi Ohura
doaj +1 more source
Engineering, 2019 Volatile components in diamonds, associated garnet (pyrope), and olivine from two extremely rare xenoliths of diamondiferous peridotites recovered from the Udachnaya kimberlite pipe in Yakutia, Russia, were analyzed by gas chromatography–mass ...
Nikolay V. Sobolev +3 more
doaj +1 more source
Investigation of Metal and Organic Contaminant Distributions and Sedimentation Rates in Backwater Lakes along the Illinois River [PDF]
, 2008 Systematic sub-sampling of sediment cores in sections of uniform thickness is necessary in order to evaluate historic changes in sediment quality, to determine the vertical extent of contamination, and to measure sedimentation rates.
Cahill, Richard A. +2 more
core
Mandible composition and properties in two selected praying mantises (Insecta, Mantodea)
The Anatomical Record, EarlyView.Abstract Insects process their food with their cuticle‐based mouthparts. These feeding structures reflect their diversity and can, in some cases, showcase adaptations in material composition, mechanical properties, and shape to suit their specific dietary preferences.
Malo Roze +3 more
wiley +1 more source
Shellfish Tissue Monitoring in Piscataqua Region Estuaries 2010 and 2011 [PDF]
, 2013 Conducted by a committee of Canadian and US government and university scientists, Gulfwatch examines the effects of decades of development and industrialization on the water quality of the Gulf as it relates to human health primarily through assessing ...
Trowbridge, Philip R., Wood, Matthew A.
core +2 more sources