Results 41 to 50 of about 484,955 (341)

Enzymatic degradation of biopolymers in amorphous and molten states: mechanisms and applications

FEBS Open Bio, EarlyView.
This review explains how polymer morphology and thermal state shape enzymatic degradation pathways, comparing amorphous and molten biopolymer structures. By integrating structure–reactivity principles with insights from thermodynamics and enzyme engineering, it highlights mechanisms that enable efficient polymer breakdown.
Anđela Pustak, Aleksandra Maršavelski
wiley   +1 more source

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

FEBS 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, Blaž Stres, Mirica Karlovits, Igor Karlovits, Petra Jerič, Ondrej Panák, Anja Verbič, Blaž Likozar, Uroš Novak   +8 more
wiley   +1 more source

An Analytical Approach to Contaminant Transport with Spatially and Temporally Dependent Dispersion in a Heterogeneous Porous Medium

Cumhuriyet Science Journal, 2023
This study presents an analytical solution to the one-dimensional advection-dispersion equation (ADE) for a semi-infinite heterogeneous aquifer system with space and time-dependent groundwater velocity and dispersion coefficient.
Sujata Kushwaha, Raja Ram Yadav, Lav Kush Kumar, Joy Roy   +3 more
doaj   +1 more source

Diffusion of a passive scalar by convective flows under parametric disorder

, 2008
We study transport of a weakly diffusive pollutant (a passive scalar) by thermoconvective flow in a fluid-saturated horizontal porous layer heated from below under frozen parametric disorder.
Bensoussan A, Denis S Goldobin, Elizaveta V Shklyaeva, Frisch U, Goldobin D S, Lifshitz I M, Mazzino A, Schöpf W   +7 more
core   +1 more source

Assurance of guaranteed atmosphere air quality for a point emission source [PDF]

, 2019
Purpose. To solve the task of assessing the components of the guaranteed atmosphere air quality PMPj, PMP depending the maximum pollutant concentrations for a point source of emissions at the stage of designing in various industries (mining ...
Demydenko, A, Falko, V, Polishchuk, A, Polishchuk, S   +3 more
core   +1 more source

Geometric Optimization and Mechanical Performance Enhancement of Auxetic Structures for High‐Impact Applications Through Fused Deposition Modeling

Advanced Engineering Materials, EarlyView.
This study explores the mechanical performance of three auxetic structures, identifying a re‐entrant‐star hybrid as the most effective for impact absorption. Finite element simulations and experiments demonstrate significant gains in energy absorption and flexural strength after geometric optimization. This study investigates the mechanical performance
Malik Hassan, Manjusri Misra, Alexander Bardelcik, Stefano Gregori, Amar K. Mohanty   +4 more
wiley   +1 more source

Transcriptional Analysis Revealing the Improvement of ε-Poly-L-lysine Production from Intracellular ROS Elevation after Botrytis cinerea Induction

Journal of Fungi
Gray mold, caused by Botrytis cinerea, poses significant threats to various crops, while it can be remarkably inhibited by ε-poly-L-lysine (ε-PL). A previous study found that B.
Chen Zhang, Zhanyang Zhang, Ya Cheng, Ni Ni, Siyu Tong, Wangbao Da, Chunyan Liu, Qiran Diao, Ziyan Chen, Bingyue Xin, Huawei Zeng, Xin Zeng, Dayong Xu   +12 more
doaj   +1 more source

Urban air pollution dispersion model [PDF]

, 1972
Three-dimensional integrated puff model simulates smoke plume dispersion processes and estimates pollutant concentration during periods of low wind speed.
Robert, J. J.
core   +1 more source

Trace Nickel Activated Biphasic Core‐CuOii/Shell‐CuOi Secondary Microspheres Enable Room Temperature Parts‐Per‐Trillion‐Level NO2 Detection

Advanced Engineering Materials, EarlyView.
An idea of designing novel sensors is proposed by creating appropriate Schottky barriers and vacancies between isomorphous Core‐CuOii/ Shell‐CuOi secondary microspheres and enhancing catalytic and spill‐over effects, and electronegativity via spontaneous biphasic separation, self‐assembly, and trace‐Ni‐doping.
Bala Ismail Adamu, Peipei Chen, Shafia Mukhtar Ibrahim, Mukhtar Lawan Adam, Attia Falak, Mokhotjwa Simon Dhlamini, Hanfu Wang, Lingxiang Jiang, Weiguo Chu   +8 more
wiley   +1 more source

The Harmful Impacts of Microplastics in the Marine Environment- A Review [PDF]

محیط زیست و مهندسی آب, 2018
Microplastics as emerging and unfamiliar contaminants have been considered by researchers during the last decades. These small particles and fragments, typically have a size less than 5 mm and could penetrate into the marine environments by different ...
Ali Bahri, Hosnie Ghaemi, Aziz Abdolahi, Mohammad Mehdi Doaie   +3 more
doaj   +1 more source