Results 111 to 120 of about 63,183 (273)

The development of contactless payment market in Poland and in the world

Copernican Journal of Finance & Accounting, 2013
The aim of the article is to assess factors that stimulate cashless payment organizations to introduction of contactless payment onto market, as well as the barrier for the development of this innovation.
Janusz Kunkowski
doaj   +1 more source

Programmable Multifunctional Bistable Structures for Energy Transfer and Dissipation

Advanced Science, EarlyView.
Utilizing the energy conversion characteristics of asymmetric bistable beams, this study develops a programmable multifunctional system composed of multiple bistable beams for energy transfer and dissipation. The high energy density enables the system to demonstrate potential in transient scenarios such as target delivery and shock absorption ...
Xin Na, Jincong Zhang, Zhicheng Chen, Venkatarao Selamneni, Haotian Chen, Hadi Heidari, Morteza Amjadi   +6 more
wiley   +1 more source

Early detection of deteriorating patients in general wards through continuous contactless vital signs monitoring

Frontiers in Medical Technology
ObjectiveTo assess the efficacy of continuous contactless vital signs monitoring with an automated Early Warning System (EWS) in detecting clinical deterioration among patients in general wards.MethodsA prospective observational cohort study was ...
Ambuj Yadav, Himanshu Dandu, Gaurav Parchani, Kumar Chokalingam, Pooja Kadambi, Rajesh Mishra, Ahsina Jahan, Jean-Louis Teboul, Jos M. Latour   +8 more
doaj   +1 more source

Forward and inverse problems in fundamental and applied magnetohydrodynamics

, 2012
This Minireview summarizes the recent efforts to solve forward and inverse problems as they occur in different branches of fundamental and applied magnetohydrodynamics. As for the forward problem, the main focus is on the numerical treatment of induction
Giesecke, Andre, Stefani, Frank, Wondrak, Thomas, Xu, Mingtian   +3 more
core   +1 more source

Transmission of Radio‐Frequency Waves and Nuclear Magnetic Resonance in Lanthanum Superhydrides

Advanced Science, EarlyView.
1H NMR and radio‐frequency transmission measurements of lanthanum superhydrides at 165 GPa reveals a transition at 260–280 K by a strong suppression of the signal intensity, significant changes in NMR spectra, including a dramatic decrease of the relaxation rate 1/T1T, and pronounced shielding effect, which may have a superconducting nature.
Dmitrii V. Semenok, Florian Bärtl, Di Zhou, Toni Helm, Sven Luther, Joachim Wosnitza, Ivan A. Troyan, Viktor V. Struzhkin, Hannes Kühne   +8 more
wiley   +1 more source

Recent Advances in Laser‐Induced Graphene‐Based Gas Sensors: From Sensing Mechanisms to Biomedical Applications

Advanced Science, EarlyView.
Laser‐induced graphene (LIG) provides a scalable, laser‐direct‐written route to porous graphene architecture with tunable chemistry and defect density. Through heterojunction engineering, catalytic functionalization, and intrinsic self‐heating, LIG achieves highly sensitive and selective detection of NOX, NH3, H2, and humidity, supporting next ...
Md Abu Sayeed Biswas, Ankan Dutta, Shuvendu Das, Abu Musa Abdullah, Wanqing Zhang, Fatema Tuz Zohra, Huanyu Cheng   +6 more
wiley   +1 more source

Non‐Equilibrium Synthesis Methods to Create Metastable and High‐Entropy Nanomaterials

Advanced Science, EarlyView.
ABSTRACT Stabilizing multiple elements within a single phase enables the creation of advanced materials with exceptional properties arising from their complex composition. However, under equilibrium conditions, the Hume–Rothery rules impose strict limitations on solid‐state miscibility, restricting combinations of elements with mismatched crystal ...
Shuo Liu, Chaochao Dun, Jeffrey J. Urban, Mark T. Swihart   +3 more
wiley   +1 more source

Solution‐Processed Organic Photovoltaics: Fabrication Advances and Challenges

Advanced Science, EarlyView.
This review highlights recent advances in organic photovoltaic (OPV) device fabrication, emphasizing how material selection, interface engineering, and scalable processing techniques shape device performance. It discusses progress in photoactive and charge transport layers, electrode optimization, and large‐area manufacturing, offering insights into ...
Kerui Liu, Chenyujie Zhu, Yuanyuan Jiang, Feng Liu, Xiaozhang Zhu   +4 more
wiley   +1 more source

Contactless: the next payment wave? [PDF]

This article explores the evolution of contactless payments, whose use will likely increase and could have an important impact on the payments landscape.
Terri Bradford
core  

Liquid Metals in Radio Frequency Applications: A Review of Physics, Manufacturing, and Emerging Technologies

Advanced Electronic Materials, EarlyView.
This paper reviews the physics of liquid metals in RF devices, including the influence of mechanical strain on resonance as well as fabrication methods and strategies for designing tunable and strain‐tolerant inductors, capacitors, and antennas.
Md Saifur Rahman, William J. Scheideler
wiley   +1 more source