Results 101 to 110 of about 314,995 (312)

IN4MER Biomaterial Ink: A Phosphorescent Biosensing Biomaterial Ink for Multiple Analytes (Glucose, Lactate, Oxygen) Measurements and Temperature Sensing Applications

open access: yesAdvanced Functional Materials, EarlyView.
Multianalyte, real‐time monitoring of bioprinted scaffolds remains challenging. Phosphorescence‐lifetime–based, optically responsive microparticles are embedded in diverse printable hydrogels (κ‐carrageenan, GelMA, PEGDA) to form biomaterial inks that report oxygen, glucose, lactate, and temperature.
Waqas Saleem   +11 more
wiley   +1 more source

Enhanced Terahertz Thermoelectricity Via Engineered Van Hove Singularities and Nernst Effect in Moiré Superlattices

open access: yesAdvanced Functional Materials, EarlyView.
Moiré band engineering in graphene/hexagonal boron nitride–based superlattices unlocks van Hove singularities (VHSs) for terahertz (THz) optoelectronics. Tuning the Fermi level near these singularities, associated with secondary neutrality points (SNPs), enhances the photothermoelectric response.
Leonid Elesin   +16 more
wiley   +1 more source

THE PLACE OF SOCIAL SECURITY IN THE SYSTEM OF NATIONAL SECURITY

open access: yesJournal of Learning on History and Social Sciences
Objective: This study examines social security as an integral component of national security, analyzing the interconnections between individual, societal, and state interests in ensuring social stability. Method: The research employs a systematic approach, integrating sociological analysis to assess contemporary threats emerging within societal ...
openaire   +1 more source

Strain‐Programmable Luminescent Adhesive Patch With Tartrazine‐Mediated Optical Skin Clearing for Photochemical Tissue Bonding

open access: yesAdvanced Functional Materials, EarlyView.
We propose a suture‐complementary approach that integrates optical skin clearing with a strain‐programmable luminescent adhesive patch. Hyaluronic acid promotes transdermal delivery of tartrazine to improve optical clearing and stabilizes its interaction with a photosensitizer. Optical clearing increases the penetration depth of visible light into skin,
Seong‐Jong Kim   +6 more
wiley   +1 more source

Restoring the Vision: Overcoming Gridlock to Reassert Congress's Role in Deliberating National Security (November 2017)

open access: yes, 2017
One of the early strokes of genius by the architects of the American system was entrusting to Congress the sacred duty of supporting and providing for our military.
McCain, John
core   +1 more source

Systemic Approach to Civil Protection in Poland

open access: yesSafety & Fire Technology, 2019
Aim: The primary goal of this study was to identify the civil protection system within the domain of Poland’s national security, to describe its mission and range of responsibilities, and to suggest what should be changed.
Grzegorz Sobolewski
doaj   +1 more source

Mechanical Behavior and Fracture Mechanisms of MXene/PVDF Nanocomponsites: In Situ Characterization and Multiscale Analysis

open access: yesAdvanced Functional Materials, EarlyView.
Multiscale experiments and modeling reveal how Ti3C2Tx MXene nanosheets reinforce PVDF nanocomposites. An optimal MXene loading (∼1 wt.%) nearly doubles tensile strength through efficient stress transfer, flake alignment, and crack‐deflection mechanisms, transforming ductile polymer behavior into a controlled multi‐stage fracture pathway which aligns ...
Bita Soltan Mohammadlou   +5 more
wiley   +1 more source

Distributed Timing and Triggering Control System [PDF]

open access: yes, 2012
This document is a slide show type presentation regarding the need and realization of a new control system for work at the Nevada National Security Site. Commercial products that met the need are identified, both hardware and software.
Bowen, T., Huerta, J. A.
core  

Logistics security in the system of countries national security

open access: yes, 2016
In the article was explored the development of theoretical foundations of national security of Ukraine. Was marked a significant increase of interest to its problem especially within its various dimensions: energetical, logistical, militarian. Revealed that one of the key aspects in the formation of national security in recent years gradually became ...
Krykavskyy, Yе.   +2 more
openaire   +1 more source

Regulated Ion‐Diffusion Hydrogels for Subtle and Multimodal Temperature‐Strain Sensing in Wound Monitoring

open access: yesAdvanced Functional Materials, EarlyView.
A soft, dual‐channel hydrogel patch enables simultaneous detection of wound temperature and strain by integrating ion‐diffusion‐mediated thermoelectric and resistive sensing. The conformal design maintains stable performance during motion, capturing subtle inflammatory and mechanical changes for continuous wound monitoring.
Yu Fang   +7 more
wiley   +1 more source

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