Results 31 to 40 of about 187,675 (250)

Synthesis of Bulk Superconducting LiNbO2 Crystals Through CaH2 Reduction

open access: yesAdvanced Materials, EarlyView.
CaH2 reduction reconstructively transforms insulating LiNbO3 single crystals into superconducting bulk LiNbO2 with a critical temperature of Tc = 14.4 K. Scanning electron microscopy reveals large‐volume, high‐yield phase conversion. Magnetization measurements demonstrate a robust ∼ 77% Meissner shielding fraction, establishing bulk superconductivity ...
Ryan Paxson   +19 more
wiley   +1 more source

ПОРІВНЯЛЬНЕ ДОСЛІДЖЕННЯ ТЕСТІВ ДЛЯ ОЦІНКИ СТАТИСТИЧНИХ ХАРАКТЕРИСТИК ГЕНЕРАТОРІВ ВИПАДКОВИХ ТА ПСЕВДОВИПАДКОВИХ ПОСЛІДОВНОСТЕЙ

open access: yesКібербезпека: освіта, наука, техніка
У світі інформаційної безпеки, комп'ютерної науки і криптографії питання статистичної безпеки згенерованих послідовностей є вельми важливим. Статистична безпека послідовностей відіграє важливу роль у наступних галузях: криптографія, комп'ютерна безпека ...
Олена Нємкова   +1 more
doaj   +1 more source

A Critical Call for Mechanistic Investigations of Metal‐Bacteria Interactions

open access: yesAdvanced Materials, EarlyView.
It is well established that the antibacterial properties of metals have tremendous importance for bioengineering applications. What is not as appreciated, however, is the reproducibility crisis in this field's vast literature. In this perspective, we highlight this reproducibility problem, discuss its sources, and suggest solutions towards focused ...
J. Rackwitz   +9 more
wiley   +1 more source

Synthesis of Ti2B2Clx MBenes in Molten Salts From Theoretical and Experimental Perspectives

open access: yesAdvanced Materials, EarlyView.
By integrating a theoretical framework with experiments, Ti2InB2 was selectively etched with ZnCl2 to produce a multilayer (ml) Ti2B2Clx MBene. The In atoms are completely removed, with simultaneous incorporation of chlorine surface terminations. in situ x‐ray diffraction indicates a direct biphasic transformation from Ti2InB2 to ml‐MBene, with no ...
Rodrigo M. Ronchi   +15 more
wiley   +1 more source

Physical Origin of Temperature Induced Activation Energy Switching in Electrically Conductive Cement

open access: yesAdvanced Science, EarlyView.
The temperature‐induced Arrhenius activation energy switching phenomenon of electrical conduction in electrically conductive cement originates from structural degradation within the biphasic ionic‐electronic conduction architecture and shows percolation‐governed characteristics: pore network opening dominates the low‐percolation regime with downward ...
Jiacheng Zhang   +7 more
wiley   +1 more source

Alignment of KAMI Index with Global Security Standards in Information Security Risk Maturity Evaluation

open access: yesCybernetics and Information Technologies
Various incidents of information security breaches in Indonesia in 2024, especially in government agencies, are very dangerous. Even the Temporary National Data Center (PDNS) Surabaya was paralyzed in public services.
Supriyanto Aji   +4 more
doaj   +1 more source

Ultra-broadband Kerr microcomb through soliton spectral translation

open access: yesNature Communications, 2021
Integrated optical frequency measurements, benefit from broadband on-chip frequency combs. Here the authors present a low-noise microcomb whose span extends from telecom to near-visible wavelengths.
Gregory Moille   +7 more
doaj   +1 more source

Machine Learning‐Assisted KCl‐CaCl2‐LiCl Electrolyte Design for Low‐Temperature, High‐Performance Calcium‐Based Liquid Metal Batteries

open access: yesAdvanced Science, EarlyView.
A machine learning‐assisted framework optimizes the KCl‐CaCl2‐LiCl ternary electrolyte. The optimized 13:35:52 mol% composition enables Ca‐based liquid metal batteries to operate stably at 480 °C, with >99.5% coulombic efficiency, ultralow self‐discharge, and excellent cycling stability, advancing low‐temperature large‐scale energy storage.
Xinglin Zhou   +3 more
wiley   +1 more source

ДВОРІВНЕВА КОНЦЕПЦІЯ ДЛЯ МОДЕЛЮВАННЯ ЄДИНОЇ ЗАВАДОСТІЙКОЇ ПЕРЕДАЧІ ЦИФРОВИХ ДАНИХ

open access: yesВісник Національного технічного університету "ХПÌ": Системний аналіз, управління та інформаційні технології
У статті формалізується, створюється та надається для розглядання концепція єдиного безпечного завадостійкого каналу передачі цифрових даних. У сучасній теорії та практиці з кібербезпеки існує набір рекомендацій по зниженню ризиків для організацій NIST ...
Vladyslav Sharov, Olena Nikulina
doaj   +1 more source

Network Transfer of Control Data: An Application of the NIST SMART DATA FLOW [PDF]

open access: yesJournal of Systemics, Cybernetics and Informatics, 2004
Pervasive Computing environments range from basic mobile point of sale terminal systems, to rich Smart Spaces with many devices and sensors such as lapel microphones, audio and video sensor arrays and multiple interactive PDA acting as electronic brief ...
Vincent Stanford   +2 more
doaj  

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