Results 131 to 140 of about 73,716 (295)

Sustainable Electrochemical Synthesis of High‐Quality MXenes: Mechanistic Insights, Applications, Challenges, and Technological Prospects

open access: yesAdvanced Functional Materials, EarlyView.
Electrochemical etching provides an eco‐friendly alternative to hazardous HF methods for MXene production. This approach facilitates the selective isolation of the A‐layer from MAX phases with tunable surface terminations. Controlling voltage, electrolytes, temperature, and duration enables the optimal structural integrity. Nevertheless, existing scale
Jagdeep Singh   +4 more
wiley   +1 more source

High resolution seismic and ground penetrating radar-geophysical profiling of a thermokarst lake in the western Lena Delta, Northern Siberia

open access: yes, 2002
High resolution seismic and ground-penetrating radar (GPR) have been acquired over Lake Nikolay in the western Lena Delta (Siberia) in order to study the uppermost basin fill and the bordering frozen margins. GPR measurements were completed on the frozen
Dix, J.K.   +7 more
core   +1 more source

A Fully Human Engineered Bone Niche With Endogenous Osteoclastogenesis Reveals Osteoclast‐Dependent Osteomimicry in Prostate Cancer Cells

open access: yesAdvanced Healthcare Materials, EarlyView.
A human 3D bone niche integrating osteoblasts and osteoclasts enables co‐culture with prostate cancer cell lines and patient‐derived organoids. The engineered niche (i) models aspects of reciprocal phenotypic regulation between osteoblasts and cancer cells, (ii) captures osteoclast‐enhanced osteomimicry in tumor cells, and (iii) establishes a ...
Andrea Mazzoleni   +7 more
wiley   +1 more source

Some issues related to impulse testing of gaseous insulation with synthetic air

open access: yes, 2019
Impulse testing procedures are commonly used for various investigation of high- voltage insulation. Especially for introduction of new type of electrical insulation, like ecofriendly gases alternative to SF6, the statistical behavior of breakdown voltage
Benešová, Zdeňka   +5 more
core  

Dynamic Testing of a Hybrid-Propellant Water-Breathing Ram Rocket in Underwater Cruise Conditions

open access: yesJournal of Marine Science and Engineering
High-speed submerged marine vehicles, such as torpedoes, traveling at velocities of an order of 100 m/s and above, require powerful propulsion to overcome the tremendous hydrodynamic drag.
Sagi Dinisman   +2 more
doaj   +1 more source

Development of advanced technology for high voltage transformer winding condition control based on probing impulse of nanosecond duration

open access: yes, 2018
The paper deals with the experimental research of the pulsed method of transformer winding control in comparison with FRA technology. A new approach to winding condition control technology is described. The proposed method is based on short (compared with a typical pulsed technology) probe pulse and front pulse durations.
Lavrinovich, A. V.   +1 more
openaire   +1 more source

Integrated Visible Light and Oxidant Protection Through Multifunctional Sunscreens

open access: yesAdvanced Healthcare Materials, EarlyView.
High‐energy visible radiation (HEVR), although less energetic than UV light, penetrates deeper into the skin and contributes to photoaging, pigmentation disorders, and oxidative stress. The development of new HEVR‐targeted filters, therefore, represents not only a scientific challenge but also a pressing public health and cosmetic industry need.
Beatriz Peñín   +3 more
wiley   +1 more source

Natural Biomaterials for Osteochondral Repair: From Source to Strategy

open access: yesAdvanced Healthcare Materials, EarlyView.
Biological origin‐guided overview of natural biomaterials and therapeutic strategies for osteochondral tissue engineering. The circular diagram categorizes representative materials and strategies into plant/algae‐derived, microbial‐derived, animal‐derived, and human‐derived sources, centered on an osteochondral defect repair model.
Hengyu Liu   +5 more
wiley   +1 more source

Breakdown performance of backfill materials under impulse and ac voltage conditions [PDF]

open access: yes, 2012
Earthing means the connection of equipment through a conductor to ground. The soil is composed by many materials, which can be good or poor conductors of electricity. The earth as a whole is considered as a good conductor of electricity.
Mileo, Vanessa Carolina Laverde
core  

Engineered AuNPs/fMWCNT Nanocomposite Electrodes for High‐Sensitivity Methylglyoxal Sensing in Saliva and Sweat for Non‐Invasive Diabetes Monitoring

open access: yesAdvanced Healthcare Materials, EarlyView.
An AuNPs/fMWCNT nanocomposite‐modified screen‐printed carbon electrode was engineered via sequential electrodeposition and integrated into a 3D‐printed microfluidic platform for ultrasensitive methylglyoxal detection. The non‐invasive sensing platform enables rapid analysis in saliva and sweat, highlighting strong potential for wearable point‐of‐care ...
Ahadul Amin Soshi   +3 more
wiley   +1 more source

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