Results 91 to 100 of about 432,522 (240)

Organic alkalis as potential additives in hot water flooding for enhancing heavy oil recovery

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract Alkali–surfactant–polymer (ASP) flooding is a chemical enhanced oil recovery method; its working mechanisms include mobility control, wettability alteration, and in‐situ emulsification. However, conventional alkalis used in the ASP flooding could cause some serious issues, including scaling, formation damage, and pipe corrosion. In this study,
Xuan Du   +12 more
wiley   +1 more source

Common Trends, Common Cycles, and Price Relationships in the International Fiber Market - Evidence from a Seemingly Unrelated Structural Time Series [PDF]

open access: yes
This study shows that the stochastic process that governs price fluctuations in the international fiber market has transitory and permanent components. The results also indicate structural relationships between cotton price and wool price, wool price and
Fadiga, Mohamadou L., Misra, Sukant K.
core   +1 more source

Analytical Study of Lanolin as Potential Biomarker of Prehistoric Sheep‐Shearing Practice

open access: yesChemistry–Methods, EarlyView.
Lanolin, a complex wax found on sheep wool, accumulates on shearing tools, such as flint and obsidian blades, used since the Neolithic. This study explores lanolin's degradation patterns as a potential biomarker for prehistoric sheep‐shearing practices, employing micro‐Fourier transformed infrared spectroscopy, hyperspectral imaging, and gas ...
Claudia Adsuar Fuster   +8 more
wiley   +1 more source

Technical Efficiency of Australian Wool Production: Point and Confidence Interval Estimates [PDF]

open access: yes
A balanced panel of data is used to estimate technical efficiency, employing a fixed-effects stochastic frontier specification for wool producers in Australia. Both point estimates and confidence intervals for technical efficiency are reported.
Iain Fraser, William C. Horrace
core  

Metamer Mismatching Predicts Color Difference Ellipsoids

open access: yesColor Research &Application, EarlyView.
ABSTRACT It is well known that color‐discrimination thresholds vary throughout color space, as is easily observed from the familiar MacAdam ellipses plotted in chromaticity space. But why is this the case? Existing formulations of uniform color spaces (e.g., CIELAB, CIECAM02, CAM16‐UCS) and their associated color‐difference DE metrics are all models ...
Emitis Roshan, Brian Funt
wiley   +1 more source

The inner portrait: What does reflexivity in qualitative health professions education research look like?

open access: yes
Anatomical Sciences Education, EarlyView.
Gabrielle Brand   +2 more
wiley   +1 more source

The Support can Disguise the Catalytic Effect: The Case of Silver on Alumina in Plasma Ammonia Synthesis

open access: yesChemSusChem, EarlyView.
Support preparation can significantly impact the conversion in plasma catalytic experiments. Herein, two different discharges are studied: a dielectric barrier discharge and a nanosecond repetitively pulsed discharge, with different supports: alumina beads and laboratory‐made alumina monoliths, both loaded with silver.
Francesco Spadoni   +6 more
wiley   +1 more source

Closed‐Loop Recyclable Polyhexahydrotriazine Aerogels Utilizing N,N‐Dimethyl Lactamide as a Green Solvent

open access: yesChemSusChem, EarlyView.
The synthesis of chemically recyclable polyhexahydrotriazine (PHT) aerogels, using N,N‐dimethyl lactamide, a nontoxic, label‐free solvent, is presented. The PHT aerogels exhibit low bulk density, high porosity, excellent thermal insulation, pronounced thermal stability, and enhanced mechanical performance. Furthermore, PHT aerogels can be depolymerized
Chang‐Lin Wang   +3 more
wiley   +1 more source

Economic Evaluation of New Technologies and Promotions in the Australian Sheep and Wool Industries [PDF]

open access: yes
Knowledge about the size and distribution of returns from alternative broad types of R&D and promotion investments permit strategic-level decisions about resource allocation, both within and across research programs.
Mounter, Stuart W.
core   +1 more source

Simplified preparation of BaAl2O4‐ye ‐ y/C oxy‐electrides using Pechini approach for ammonia synthesis.

open access: yesChemSusChem, Accepted Article.
Electride based materials are among the most active catalysts for ammonia synthesis, with a strong potential for application in the development of green ammonia synthesis. However, their synthesis often requires complicated reaction conditions limiting their scalability.
Aissam Addou   +6 more
wiley   +1 more source

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