Results 51 to 60 of about 9,114,126 (253)

Dicationic Ion‐Pair Doping Enables Stable and High‐Performing Conducting Polymers for Organic Thermoelectrics

Advanced Science, EarlyView.
TAB–2TFSI enables efficient ion‐pair doping across a wide range of conjugated polymers, where the strongly oxidizing TAB core drives charge transfer, and the TFSI counterions promote favorable ionic compensation. This dicationic dopant promotes uniform dopant distribution, improves structural order, and increases carrier delocalization, establishing a ...
Juhyung Park, Shubhradip Guchait, Tanmay Sinha, Cynthia Verduyckt, Vijitha Ignatious, Tzu‐Yi Yu, Heyi Xia, Altynay Kaidarova, Michael Ng, Siebe Detavernier, Martin Rosenthal, Maristella Alessio, Daniel Escudero, Guy Koeckelberghs, Francisco Molina‐Lopez   +14 more
wiley   +1 more source

Site factors and stand conditions associated with Persian oak decline in Zagros mountain forests

Forest Systems, 2018
Aim of study: Drought and stand structure are major and interconnected drivers of forest dynamics. Water shortage and tree-to-tree competition may interact under the current climate change scenario, increasing tree mortality.
Ahmad Hosseini, Seyed M. Hosseini, Juan C. Linares   +2 more
doaj   +1 more source

Deciphering the Crystallinity‐Dependent Sensitivity of Charge Injection in n‐Channel Organic Transistors: Reliable Characterization and Optimized Performance

Advanced Science, EarlyView.
Precise characterization of n‐type organic semiconductors necessitates decoupling interfacial constraints from intrinsic charge transport. This work reveals that disordered polymers are particularly vulnerable to contact‐limited bottlenecks compared to their crystalline counterparts.
Walid Boukhili, Chan Zhang, Jianeng Ma, Changwoo Yu, Chee Leong Tan, Huabin Sun, Zhihao Yu, Guangan Yang, Xiang Wan, Li Zhu, Yong Xu, Liyang Yu, Ruipeng Li, Seung‐Hoon Lee, Zhuping Fei, Dongyoon Khim   +15 more
wiley   +1 more source

Abundance and size structure of planktonic protist communities in a Neotropical floodplain: effects of top-down and bottom-up controls

Acta Limnologica Brasiliensia, 2017
: Aim: We aimed to assess the influence of bottom-up and top-down control mechanisms on the abundance and size structure of protist communities (heterotrophic flagellates and ciliates). We formulated the following hypothesis: bottom-up control mechanisms,
Bianca Ramos de Meira, Fernando Miranda Lansac-Tôha, Bianca Trevizan Segovia, Felipe Rafael de Oliveira, Paulo Roberto Bressan Buosi, Susicley Jati, Luzia Cleide Rodrigues, Fábio Amodêo Lansac-Tôha, Luiz Felipe Machado Velho   +8 more
doaj   +1 more source

Neuromorphic Optical Tracking and Imaging of Randomly Moving Targets Through Dynamic Dense Scattering Media

Advanced Science, EarlyView.
Vision begins not with images but with change: the retina fires only when something moves, handing the brain a stream of spikes. A neuromorphic imaging system adopts the same strategy—an event sensor that sees like the retina, a spiking network that thinks like the brain—to track and reconstruct fully randomly moving targets through tissue (phantom ...
Ning Zhang, Arto Nurmikko
wiley   +1 more source

Effects of groundwater fluctuations on the distribution and population structure of two cyprinid fishes in a desert spring complex

Journal of Freshwater Ecology, 2019
Relationships between groundwater levels, surface water levels, and the distribution and habitat use of two cyprinid fishes, Least Chub (Iotichthys phlegethontis) and Utah Chub (Gila atraria), were examined at a spring complex in the Snake Valley of the ...
Mark C. Grover
doaj   +1 more source

Architecting Phase‐Selective Interlayers for Stable SiOx Lithium Storage via Dual‐Function Design

Advanced Science, EarlyView.
Silicon anodes offer high capacity but suffer severe volume expansion. Silicon monoxide (SiO) buffers expansion, yet uncontrolled lithiation irreversibly consumes lithium as Li2O and oxygen‐rich silicates. Here, we design a layered SiOx featuring a phase‐selective conductive interfacial interlayer (PSCII), i.e., a Li4SiO4‐rich, ion‐accessible ...
Zhenfei Chang, Wei Dong, Yingguang Zhang, Hangchen Qu, Yifei Wang, Xiaolong Zhao, Chu Wang, Ming Dong, Huizhi Wang, Jin Xuan, Yug Joshi, Dennis Y.C. Leung, Wending Pan   +12 more
wiley   +1 more source

Testing the relationship between microbiome composition and flux of carbon and nutrients in Caribbean coral reef sponges

Microbiome, 2019
Background Sponges are important suspension-feeding members of reef communities, with the collective capacity to overturn the entire water column on shallow Caribbean reefs every day.
Shelby E. Gantt, Steven E. McMurray, Amber D. Stubler, Christopher M. Finelli, Joseph R. Pawlik, Patrick M. Erwin   +5 more
doaj   +1 more source

Diverging Liquid–Liquid Phase Separation Behavior of Different Recombinant Major Ampullate Spidroins

Advanced Science, EarlyView.
Fibers spun from the MaSp1‐derivative as well as MaSp1‐MaSp2‐mixtures provide a deeper insight into the assembly process of the spidroins and how hierarchical architectures of spider silk fibers could be achieved. ABSTRACT Spider silk fibers show exceptional mechanical properties, based on their underlying spider silk proteins (spidroins) as well as a ...
Tim Schiller, Cheryl Hayashi, Thomas R. Scheibel   +2 more
wiley   +1 more source

Connectivity determines the capability of sparse neural network quantum states

Machine Learning: Science and Technology
The lottery ticket hypothesis (LTH) posits that within overparametrized neural networks, there exist sparse subnetworks that are capable of matching the performance of the original model when trained in isolation from the original initialization.
Brandon Barton, Juan Carrasquilla, Christopher Roth, Agnes Valenti   +3 more
doaj   +1 more source