Results 51 to 60 of about 163,398 (287)

Laser‐Welded Cellulose‐Carbon Nanotube Nanocomposites as a 3D Scaffold of Si Anodes for High‐Performance Lithium‐Ion Batteries

open access: yesAdvanced Functional Materials, EarlyView.
A Si anode comprising entangled networks of cellulose and SWCNT (C‐CNT) nanocomposites as an anode electrode for a high‐performance LIB is realized by fully utilizing the generated microstructure of a novel conductive 3D scaffold via a low‐temperature and eco‐friendly process. Additionally, localized heating via photo‐thermal conversion can be utilized
Boeun Ryu   +5 more
wiley   +1 more source

Renormalization in open quantum field theory. Part I. Scalar field theory

open access: yesJournal of High Energy Physics, 2017
While the notion of open quantum systems is itself old, most of the existing studies deal with quantum mechanical systems rather than quantum field theories.
Avinash Baidya   +3 more
doaj   +1 more source

Using a Public Value Management theory to identify features of citizen-centric e-governance in Namibia

open access: yesSouth African Journal of Information Management, 2023
Background: The utilisation of e-government by citizens in Africa remains limited due to resource constraints and various socioeconomic challenges. Nevertheless, Namibia, for example, has shown a strong interest in adopting and implementing e-government,
Karin A. Fröhlich   +3 more
doaj   +1 more source

Ultrastable Photoactive Halide Perovskite Nanocrystal‐Sensitized SnO2 Nanorods for Room‐Temperature NO2 Detection

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT Metal oxide (MOx)‐based NO2 gas sensors typically require high temperatures or ultraviolet light, limiting their practical use. To enable visible‐light activation at room temperature, efficient and stable photosensitizers should be integrated with nanostructured MOx hosts.
Yeonji Yuk   +10 more
wiley   +1 more source

eEnabled internet distribution for small and medium sized hotels: the case of hospitality SMEs in Athens [PDF]

open access: yes, 2008
Advances in information and communications technologies (ICTs) have strategic implications for a wide range of industries. Tourism and hospitality have dramatically changed by the ICTs and the Internet and gradually emerge as the leading industry on ...
Buhalis, Dimitrios, Kaldis, Konstantina
core  

Unveiling Multidimensional Physicochemical Design Principles for Tissue Processing Hydrogels

open access: yesAdvanced Functional Materials, EarlyView.
This study establishes a materials‐based design framework for polymer hydrogels in tissue clearing, linking physicochemical properties to performance in tissue processing, labeling, and imaging. By analyzing rheology, swelling, porosity, antibody diffusion, mechanical performance, and thermochemical stability across platforms, this work provides a ...
Sangjae Kim   +8 more
wiley   +1 more source

Alignment dynamics in eGovernment: behind the scenes of local governments [PDF]

open access: yes, 2012
Local governments are increasingly swamped by the endless possibilities that arise from information and communication technologies. They are challenged to incorporate ICTs in their daily processess and strive to thus become more efficient and effective ...
Boudry, Elke, Verdegem, Pieter
core   +1 more source

Pixelation‐Free, Monolithic Iontronic Pressure Sensors Enabling Large‐Area Simultaneous Pressure and Position Recognition via Machine Learning

open access: yesAdvanced Functional Materials, EarlyView.
A pixelation‐free, monolithic iontronic pressure sensor enables simultaneous pressure and position sensing over large areas. AC‐driven ion release generates spatially varying impedance pathways depending on the pressure. Machine learning algorithms effectively decouple overlapping pressure–position signals from the multichannel outputs, achieving high ...
Juhui Kim   +10 more
wiley   +1 more source

Influence phase of a dS observer. Part I. Scalar exchange

open access: yesJournal of High Energy Physics
Inspired by real-time computations in AdS black holes, we propose a method to obtain the influence phase of a cosmological observer by calculating the on-shell action on a doubled spacetime geometry.
R. Loganayagam, Omkar Shetye
doaj   +1 more source

Households’ ICT access and educational vulnerability of children in Ghana

open access: yesCogent Social Sciences, 2019
Education is said to be a basic human right, and central to unlocking human capabilities. However, Sub-Sahara Africa (SSA) has the highest number of children out of school and learning disadvantages.
Alhassan Abdul-Wakeel Karakara   +1 more
doaj   +1 more source

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