Results 41 to 50 of about 51,527 (265)

Receptor‐Free Identification of Toxic Gases Enabled by Hygroscopic Aqueous Salt Films

open access: yesAdvanced Functional Materials, EarlyView.
Water as a gas sensor coating sounds impossible—until it stops evaporating. Here, hygroscopic salt solutions (LiCl, LiBr, H3PO4) form non‐drying aqueous films on CNT chemiresistors under ambient air. Gases partition into these liquid layers, sometimes transforming into water, and generate salt‐specific resistance fingerprints across a four‐channel ...
Seongwoo Lee   +5 more
wiley   +1 more source

Fluvial navigation and molitary engincering in Spain, 16th-17th centuries. From Pérez de Oliva y Antonelli to Leonardo Torriani y Luis Carduchi

open access: yesAnales de Historia del Arte, 2007
Really it would be paper’s engineering, because in practice only been accoplished a minimal, but we have in this documents importants testimonies of artitic culture in the Spain of Habsburg, and the fundamental works of the engineers of his service, from
Diego Suárez Quevedo
doaj  

Mechanisms of Degradation in Li‐Ion Batteries Under Low Temperature Exposures

open access: yesAdvanced Functional Materials, EarlyView.
Low‐temperature exposures, or freeze‐thaw cycles, are observed to significantly accelerate the degradation of Li‐ion batteries. A combination of electrolyte phase separation and mechanochemical stress leads to reversible and irreversible performance losses.
Mihir Ojha   +12 more
wiley   +1 more source

Microfluidic Nano‐Assembly of Red‐Blood‐Cell (RBC) Lipids and Components for Engineering Extracellular Vesicles

open access: yesAdvanced Healthcare Materials, EarlyView.
Engineered red blood cell‐derived extracellular vesicles (eRBCEVs) are synthesized via controlled microfluidic assembly from native RBC lipids, enabling tunable encapsulation of proteins, nucleic acids, nanoparticles, and viral vectors. The platform demonstrates reproducible nanoscale architecture, preserved membrane composition, and functional cargo ...
Chiranth K. Nagaraj   +23 more
wiley   +1 more source

Arte e ciência na Amazônia no século XVIII: o Prospecto da Vila de Cametá

open access: yesCaiana: Revista de Historia del Arte y Cultura Visual, 2014
With the aim of analyzing the iconography and the maps of the Philosophical Journey (1783-1792) led by Alexandre Rodrigues Ferreira, this work follows an excursion to the Rio Tocantins in the captaincy of the Grão-Pará, realized in January 1784, when the
Ermelinda Moutinho Pataca
doaj  

Airlift Maintenance and Sustainment: The Indirect Costs

open access: yesAerospace, 2020
This article aims to present and discuss a set of technical matters affecting the maintenance and sustainment cost of military transport aircraft (airlifters). An overview of the military aviation technical support system is provided, in conjunction with
Kyriakos I. Kourousis
doaj   +1 more source

Topology‐Orchestrated Multi‐physical Energy Control in Turtle Shell‐Inspired Metamaterials

open access: yesAdvanced Materials, EarlyView.
A turtle shell‐inspired lattice metamaterial efficiently manages acoustic, fluid‐thermal, and mechanical energy flows simultaneously. The unique hybrid‐coupling architecture achieves superior sound attenuation via pore‐cavity resonance, facilitates effective airflow transport, and maximizes mechanical energy absorption through multistage cell ...
Xi Wang   +3 more
wiley   +1 more source

INTEGRATED DIDACTIC DESIGN MODEL FOR ENGINEER OFFICERS' TRAINING: INSIGHTS FROM INTERNATIONAL EXPERIENCE [PDF]

open access: yesJournal of Defense Resources Management
The training of military engineering personnel is mainly carried out on the basis of military institutes, universities and academies. In addition to the specialty, military higher education institutions are aimed at instilling and developing strategic ...
Amil DADASHOV
doaj   +1 more source

Military Gymnasium in Irkutsk

open access: yesПроект Байкал, 2021
The article presents the results of the qualification work “Renovation of the territory of Irkutsk Higher Military Aviation Engineering School with the development of a fragment of the military gymnasium complex in Irkutsk”. The historical context, urban
Анастасия Синькова   +1 more
doaj   +1 more source

Ti3C2Tx MXene/Silver Composite Foams For Lightweight, High‐Performance Electromagnetic Interference Shielding and Joule Heating

open access: yesAdvanced Materials Interfaces, EarlyView.
Ultrathin MXene/EMF composite foams achieve a specific shielding efficiency of 749.6 dB.dB·cm3$\mathrm{dB}\cdot {\mathrm{cm}}^{3}$/g, while the silver‐enhanced MXene/Ag/EMF reaches 81.4 dB shielding effectiveness at just 1.0 mm thickness. Both composites exhibit rapid Joule heating, retain stability up to 250∘C$^\circ{\rm C}$, and withstand 1000 ...
Abdullah A. Mahmood   +7 more
wiley   +1 more source

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