Results 81 to 90 of about 1,402 (251)

Damage‐Free Passivation of Ambipolar OECTs with Fluoropolymer Film for Enhanced Performance and Stability Toward Reliable Biosignal Processing

open access: yesAdvanced Science, EarlyView.
A damage‐free iCVD fluoropolymer passivation strategy is introduced for ambipolar vertical OECTs. Vapor‐phase infiltration and thermal annealing induce nanoscale phase separation in the OMIEC channel, enhancing overall device performance. A single‐channel bipolar event‐driven spiking encoder is also demonstrated for electrocardiogram signal encoding ...
Junyeong Yang   +7 more
wiley   +1 more source

Covalent Organic Framework Colloids With Core‐Shell Donor/Acceptor Architecture and Ultralong‐Lived Charge‐Separated States

open access: yesAngewandte Chemie, EarlyView.
Uniform core‐shell colloidal particles of Covalent Organic Frameworks (COFs) are synthesized by a seeded growth of electron‐acceptor COF shells on electron‐donor COF cores. The resulting p‐n heterojunction enables efficient separation of photogenerated charges, which persist for minutes. These core‐shell COFs show efficient CO2 photoreduction to CO and
Ting Yu   +8 more
wiley   +2 more sources

The World of Wars: Risky Systems – A second-order observation of future wars

open access: yesNordicum-Mediterraneum, 2014
The world of the future will not be one without wars. The many hopes we have about a future peace governed by a more or less confederal state will not make wars obsolete.
Gorm Harste
doaj  

VISION OF MULTIPOLARITY IN RUSSIA AND CHINA AND INTERNATIONAL CHALLEANGES

open access: yesСравнительная политика, 2015
Throughout the last two decades the creation of a multipolar world was proclaimed more than once in bilateral documents signed by Russia and China. Meanwhile, even studies of scholars from those two countries testify that unipolarity remains in the ...
V. Ya. Portyakov
doaj   +1 more source

Minimal obstructions for polarity, monopolarity, unipolarity and $(s,1)$-polarity in generalizations of cographs

open access: yes, 2022
It is known that every hereditary property can be characterized by finitely many minimal obstructions when restricted to either the class of cographs or the class of $P_4$-reducible graphs.
Contreras-Mendoza, Fernando Esteban   +1 more
core  

A Very‐High Frequency Solution‐Processed Organic Field‐Effect Transistor With Improved Voltage‐Normalized Frequency of Transition

open access: yesAdvanced Science, EarlyView.
Increasing the frequency at which organic electronics operate while limiting the operation voltage is key to enabling future sustainable wireless applications. This work shows p‐type organic field‐effect transistors based on a molecularly doped, small molecule/polymer blend (C8‐BTBT:C16IDT‐BT), fabricated via direct‐writing and solution‐processing ...
Tommaso Losi   +8 more
wiley   +1 more source

Explaining Superpower Strategic Behavior under Unipolarity: The Post-Cold War American Foreign Policy and the Trump Presidency

open access: yes, 2020
Tek kutuplu sistemlerde süper gücün stratejik davranışındaki değişikliklerin nedeni nedir? Soğuk Savaş sonrası Amerikan dış politika davranışındaki değişim ve süreklilik nasıl açıklanabilir?
Yalçın, Hasan Basri, İlhan, Bekir
core   +1 more source

Ab Initio Thermoelectric Transport Calculations of Alloyed Half‐Heuslers

open access: yesAdvanced Science, EarlyView.
The effect of alloying on the electronic transport of half‐Heusler thermoelectric materials is explored using a fully ab initio approach. A novel method is developed that combines calculations of alloyed supercells with Boltzmann transport, considering the full energy and momentum dependent scattering processes from first principles extracted ...
Ankit Kumar   +2 more
wiley   +1 more source

Unipolarity and the transformation of transatlantic security relations (1990-2003)

open access: yes, 2023
Bu çalışma, transatlantik güvenlik ilişkilerinin Sovyet tehdidinin ortadan kalkmasına ve Avrupalı NATO müttefiklerinin otonom bir savunma ve güvenlik yapılanmasına gitmelerine rağmen varlığını güçlenerek devam ettirmesini, sistemik bir yaklaşım ele ...
Akçam, Zekeriya
core  

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