Results 91 to 100 of about 44,768 (308)

Low‐Carbon Poly(3‐vinyl‐N‐methylphenothiazine) Electrode Formulation Using PEDOT:PSS (poly(3,4‐ethylenedioxythiophene):poly(styrene sulfonate)) for Lithium‐Based Energy Storage

Advanced Energy and Sustainability Research, EarlyView.
Organic electrode materials typically suffer from low electronic conductivity, requiring large amounts of carbon additives. Herein, a conducting polymer, PEDOT:PSS, is introduced as a partial replacement for carbon black, reducing the carbon content to 15 wt%.
Sathiya Priya Panjalingam, Philipp Penert, Birgit Esser, Martin Winter, Peter Bieker   +4 more
wiley   +1 more source

Recovery of critically endangered Nassau grouper (Epinephelus striatus) in the Cayman Islands following targeted conservation actions. [PDF]

, 2020
Many large-bodied marine fishes that form spawning aggregations, such as the Nassau grouper (Epinephelus striatus), have suffered regional overfishing due to exploitation during spawning.
Bush, Phillippe, Heppell, Scott A, Johnson, Bradley C, McCoy, Croy, Pattengill-Semmens, Christy V, Semmens, Brice X, Waterhouse, Lynn   +6 more
core   +1 more source

Dynamics of a modified Leslie-Gower predator-prey model with Allee effect on the prey and a generalist predator [PDF]

, 2020
Claudio Arancibia–Ibarra, Jos
openalex   +1 more source

Exploring the World of Double Nanohoops

Angewandte Chemie International Edition, EarlyView.
As two conjugated nanohoops covalently linked by a central unit, double nanohoops are a relatively new class of strained nanocarbons with different properties to single nanohoops. This review gives an overview of all reported double nanohoops, categorizing their structures, syntheses, and discussing properties and applications. Creativity and synthetic
Luisa Rzesny, Philipp Seitz, Birgit Esser   +2 more
wiley   +1 more source

Allee effects limit coral fertilization success

Proceedings of the National Academy of Sciences
Coral populations are being progressively thinned by climate change, which elevates the risk of reproductive failure from Allee effects during fertilization. Studies have shown that fertilization success improves during more intense and synchronized spawning, but the local dependence of fertilization on coral density remains unknown in ...
Peter J. Mumby, Greta Sartori, Elizabeth Buccheri, Cinzia Alessi, Hannah Allan, Christopher Doropoulos, Geraldine Rengiil, Gerard Ricardo   +7 more
openaire   +2 more sources

A dynamical trichotomy for structured populations experiencing positive density-dependence in stochastic environments

, 2017
Positive density-dependence occurs when individuals experience increased survivorship, growth, or reproduction with increased population densities. Mechanisms leading to these positive relationships include mate limitation, saturating predation risk, and
B Dennis, B Dennis, DP Hardin, F Courchamp, F Courchamp, G Roth, G Roth, H Caswell, I Scheuring, J Gascoigne, JAJ Metz, JC Gascoigne, JFC Kingman, L Arnold, L Assas, M Benaïm, MA McCarthy, SJ Schreiber, SN Evans   +18 more
core   +1 more source

Discrete Element Method Modeling of an Extrusion Process with Recirculation for Dry Manufacturing of Lithium‐Ion Battery Electrodes

Batteries &Supercaps, EarlyView.
On a digitized laboratory extruder, discrete element method modelling is studied, considering two classes of particles representing aggregates of 1) active material and 2) binder and carbon material is studied. Various extrusion scenarios leading to the formation of filaments devoted to the 3D printing of lithium‐ion battery electrodes are studied. The
Pei Sun, Paul Vigneaux, Alejandro A. Franco   +2 more
wiley   +1 more source

Dynamics of prey–predator model with strong and weak Allee effect in the prey with gestation delay

Nonlinear Analysis, 2020
This study proposes two prey–predator models with strong and weak Allee effects in prey population with Crowley–Martin functional response. Further, gestation delay of the predator population is introduced in both the models. We discussed the boundedness,
Ankit Kumar, Balram Dubey
doaj   +1 more source

Transforming Coal Waste into Surface‐Engineered Carbons for Lithium–Sulfur Batteries

Batteries &Supercaps, EarlyView.
Coal waste is transformed into surface‐engineered porous carbons that suppress polysulfide shuttling and boost Li–S battery performance. Slow redox kinetics and polysulfide shuttling hinder the practical deployment of lithium–sulfur (Li–S) batteries.
Jibril Abdulsalam, Alexander Kempf, Magdalena Graczyk‐Zajac, Anke Weidenkaff, Ralf Riedel   +4 more
wiley   +1 more source

Patience, Fish Wars, rarity value & Allee effects [PDF]

, 2007
In a Small Fish War two agents interacting on a body of water have essentially two options: they can fish with restraint or without. Fishing with restraint is not harmful; fishing without yields a higher immediate catch, but may induce lower future ...
Joosten, Reinoud
core