Results 41 to 50 of about 2,178,396 (255)

Laser‐Induced Graphene from Waste Almond Shells

open access: yesAdvanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova   +9 more
wiley   +1 more source

X‐Functionality–Driven Photocatalytic Hydrogen Evolution in 2D 4‐X‐PEA2SnI4 Perovskites

open access: yesAdvanced Functional Materials, EarlyView.
We report a water‐based synthesis of 2D 4‐X‐PEA2SnI4 perovskite microcrystals with prominent photocatalytic (PC) activity for H2 production. The synergy between organic functionalization and HI‐derived iodide scavenges holes suppress octahedral distortion, and favor electron accumulation, enabling a PC H2 evolution ∼20 µmol·g−1 and long‐term stability ...
Taeyeon Kim   +21 more
wiley   +1 more source

Light‐Induced Field‐Tunneling Synapses in Solution‐Processed Van Der Waals Heterostructures for Scalable, Retina‐Inspired Optical Sensing

open access: yesAdvanced Functional Materials, EarlyView.
A scalable, solution‐processed WSe2/ZrO2‐x van der Waals heterostructure realizes a light‐induced field‐tunneling synapse (LIFTS) that activates exclusively under bright illumination, emulating the photopic adaptation of the human retina at the device level.
Kijeong Nam   +10 more
wiley   +1 more source

Industrial Property and Investment in the Research in the Business Sector – Comparative Study Czech Republic and Poland [PDF]

open access: yesEastern European Journal of Regional Studies, 2021
The authors analyzed data on the topic with using descriptive statistics method for answers five research questions which are in line with the aim of the article.
Andrea TOMÁŠKOVÁ, Roman ŚMIETAŃSKI
doaj  

Anisotropic Phonon Dynamics and Directional Transport in Actinide Van der Waals Semiconductor Uranium Triselenide

open access: yesAdvanced Functional Materials, EarlyView.
USe3 is introduced as an actinide van der Waals semiconductor that mirrors the quasi‐one‐dimensional physics of transition‐metal trichalcogenides. Polarization‐resolved Raman spectroscopy on exfoliated flakes maps strong in‐plane phonon anisotropy and strain‐tunable mode shifts.
Aljoscha Söll   +17 more
wiley   +1 more source

A policy fiasco: The institutional (non-)reform of Czech public employment services in 2011

open access: yesCentral European Journal of Public Policy, 2015
The article deals with an institutional reform of public employment services implemented in the Czech Republic in 2011. By merging social benefits administration with employment services into the newly established Labour Office of the Czech Republic, the
Kotrusová Miriam, Výborná Klára
doaj   +1 more source

Stosunki czesko-ormiańskie

open access: yesLehahayer, 2020
Czech-Armenians relations: a brief historical survey Armenian studies in Czech Republic became more widely known to Czech public in recent years. Following up the long tradition of Oriental studies ingeneral, a newly re-established research centre was ...
Petra Košťálová
doaj   +1 more source

Acetoacetates Derived From Vegetable Oils: A Platform for Tailor‐Made Vinylogous Urethane Foams

open access: yesAdvanced Functional Materials, EarlyView.
A renewable vegetable oil is converted into acetoacetate‐functionalized precursors for the preparation of catalyst‐free vinylogous urethane foams. Room‐temperature foaming with n‐pentane generates lightweight cellular materials, while the choice of amine enables control over foam structure and mechanical properties.
Krzysztof Polaczek   +8 more
wiley   +1 more source

Fiscal reform and corporate governance in the Czech Republic [PDF]

open access: yes
The Czech Republic became a Member State of the European Union in May 2004. Under the EU legislation, prior to adopting the euro the Czech Republic must therefore be an EU Member State and must have fulfilled the Maastricht convergence criteria.
Szarowska, Irena
core  

Hydrophilic Polymers Enable Gastrointestinal Transit Monitoring by Fluorine‐19 Magnetic Resonance Imaging

open access: yesAdvanced Healthcare Materials, EarlyView.
Hydrophilic fluorinated copolymers dissolve in chyme and give a strong, single 19F signal, unlike phase‐separating perfluorocarbons. Combined 1H‐19F MRI tracks their whole‐gut transit non‐invasively and without ionizing radiation. In rats, the tracers move through the gastrointestinal tract, resist resorption, and are well tolerated, a proof‐of‐concept
Ondřej Groborz   +13 more
wiley   +1 more source

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