Results 61 to 70 of about 768,027 (297)

Additive Manufacturing of NiTi Shape Memory Alloys for Elastocaloric Applications: A Review

open access: yesAdvanced Functional Materials, EarlyView.
Additive manufacturing enables complex NiTi architectures that overcome key limitations in elastocaloric refrigeration, including poor heat transfer and high mechanical work input. This review surveys recent advances in LPBF‐ and DED‐fabricated NiTi shape memory alloys for elastocaloric applications, highlighting process–structure–performance ...
Ignatius Andre Setiawan   +7 more
wiley   +1 more source

Villa Cardilio (Torres Novas, Santarém): una revisión desde la Numismática

open access: yesPortugália, 2017
The archaeological excavations carried out in the Roman villa of Villa Cardilio (Torres Novas, Santarém) have uncovered numerous numismatic findings. The study of these coins and other archaeological objects (ceramics, amphorae, glass, etc.) allows us ...
Noé Conejo Delgado
doaj   +1 more source

Flipping quantum coins [PDF]

open access: yes, 2009
Coin flipping is a cryptographic primitive in which two distrustful parties wish to generate a random bit in order to choose between two alternatives. This task is impossible to realize when it relies solely on the asynchronous exchange of classical bits:
A Ambainis   +20 more
core   +2 more sources

Enhanced Li‐Ion Battery Performance with Hybrid MXene/GnR Electrodes: Heterojunctions and Engineered Architectures Supported by DFT Mechanistic Studies for Improved Rate Performance, Stability & Capacity

open access: yesAdvanced Functional Materials, EarlyView.
Lithium‐ion batteries (LIBs) remain central to energy storage but suffer from slow ion transport and degradation. Here, we present a binder‐free Ti3C2Tx MXene/GnR hybrid electrode with a porous 3D architecture formed via freeze casting. The structure enhances conductivity, ion transport, and stability, delivering 401 mAh/g, ∼97% efficiency, and 92 ...
Sara Mohseni Taromsari   +10 more
wiley   +1 more source

Pseudo Random Coins Show More Heads Than Tails

open access: yes, 2004
Tossing a coin is the most elementary Monte Carlo experiment. In a computer the coin is replaced by a pseudo random number generator. It can be shown analytically and by exact enumerations that popular random number generators are not capable of ...
Bauke, Heiko, Mertens, Stephan
core   +1 more source

Shape‐Controlled Guanine Self‐Assemblies for Stable and Fast‐Ion Solid–Electrolyte Interphases in Sustainable Li Metal Batteries

open access: yesAdvanced Functional Materials, EarlyView.
The shape of guanine self‐assemblies is tuned by introducing alkyl (G8), fluoroalkyl (G8f), and oligoether (G8g) side chains into the G moiety. The scanning tunneling microscopy results and calculations show that the presence and type of the side chain strongly affect the G self‐assembly network.
So‐Huei Kang   +9 more
wiley   +1 more source

qBitcoin: A Peer-to-Peer Quantum Cash System

open access: yes, 2017
A decentralized online quantum cash system, called qBitcoin, is given. We design the system which has great benefits of quantization in the following sense.
A Einstein   +14 more
core   +1 more source

One- and two-dimensional quantum walks in arrays of optical traps [PDF]

open access: yes, 2005
We propose a novel implementation of discrete time quantum walks for a neutral atom in an array of optical microtraps or an optical lattice. We analyze a one-dimensional walk in position space, with the coin, the additional qubit degree of freedom that ...
A. M. Childs   +13 more
core   +3 more sources

Regionally Localized Electrolyte Engineering via UV Crosslinking for Stable Ether–Carbonate Lithium Metal Batteries

open access: yesAdvanced Functional Materials, EarlyView.
This work introduces a regionally localized electrolyte (RLE) that spatially separates ether‐ and carbonate‐based functions to stabilize both Li metal and high‐voltage cathodes. An immobilized ether‐rich layer directs Li+ transport, activates LiNO3 locally, and forms a uniform LiF‐rich SEI, enabling lower overpotential, uniform deposition, and long ...
Eunbin Lim   +4 more
wiley   +1 more source

A Middle Persian Inscription from Persepolis [PDF]

open access: yesIranian Journal of Archaeological Studies, 2013
This article deciphers and analyzes a  previously unknown Sassanian mint location represented by the inscription WLČ., based on the analysis of a Middle Persian inscription found in Persepolis, and on the linguistic changes that occurred during the ...
Maryam Ansari
doaj   +1 more source

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