Results 51 to 60 of about 5,262,176 (245)

Preferential Interfacial Engineering of Hydrogels via Interdigitated Nanoparticle Assembly

open access: yesAdvanced Functional Materials, EarlyView.
Robust surface functionalization of hydrogel surfaces is performed via interdigitated metal nanoparticle assembly, inducing strong affinity with the hydrogel matrix. The partially exposed nanoparticle domains act as interfacial nanobridges that mediate both chemical and physical bonding with diverse materials, including small molecules, fluorous ...
Hyeonjin Kim   +11 more
wiley   +1 more source

RITUAL POTTERY FROM THE DJEDKARE ISESI PYRAMID COMPLEX IN SOUTH SAQQARA

open access: yesInternational Journal of Multidisciplinary Studies in Heritage Research
This paper aims to study and analyze a collection of pottery jars discovered in the area called "T.G" within the pyramid complex of King Djedkare Isesi at Saqqara, dating to the Third Intermediate Period.
Nagwa Rashad   +3 more
doaj   +1 more source

Designing Vanadium‐Based Oxide Electrocatalysts for Water Splitting: Experimental and Mechanistic Insights with Machine Learning

open access: yesAdvanced Functional Materials, EarlyView.
This review establishes structure‐property‐mechanism relationships across six modification strategies for V‐based oxide water‐splitting electrocatalysts: lattice engineering, heteroatom doping, interface engineering, carbon‐based hybridization, morphology engineering, and surface reconstruction and pre‐catalyst design, where dissolution is reframed as ...
Youness El Issmaeli   +4 more
wiley   +1 more source

Ligand Assisted Epitaxial Growth of CsPbBr3 Microcrystal Resonators With Record ‐Low Lasing Thresholds

open access: yesAdvanced Functional Materials, EarlyView.
Solution‐based ligand‐assisted epitaxial growth (LAEG) yields high‐quality CsPbBr3 microcrystals on different substrates with superior morphology, passivated surfaces, and high photoluminescence quantum yield. These robust micro‐resonators achieve record‐low room‐temperature lasing thresholds of 7.2 kW·cm−2 and maintain operational stability up to 90 ...
Shuyu Zhou   +19 more
wiley   +1 more source

3D‐Printed Gradient Shape‐Memory Strain Sensors With Rewritable Gauge Factors

open access: yesAdvanced Functional Materials, EarlyView.
A 3D‐printed shape‐memory strain sensor combines thermomechanical programming with gradient architectural design. Preset strain rewrites the gauge factor (GF), while the gradient geometry amplifies the response through strain redistribution. Reprogrammable sensitivity enables the same sensor to detect weak pulse signals and monitor large‐amplitude ...
Xuan Zhang   +10 more
wiley   +1 more source

Power Pylon Reconstruction Based on Abstract Template Structures Using Airborne LiDAR Data

open access: yesRemote Sensing, 2019
As an important power facility for transmission corridors, automatic three-dimensional (3D) reconstruction of the pylon plays an important role in the development of smart grid.
Shichao Chen   +10 more
doaj   +1 more source

Cryptographic Puzzles and Complex Systems

open access: yes, 2021
A puzzle lies behind password authentication (PA) and blockchain proof of work (PoW). A cryptographic hash function is commonly used to implement them. The potential problem with secure hash functions is their complexity and rigidity.
Vuckovac, Rade
core   +1 more source

Advances in 3D Bioprinting for Breast Cancer Modeling: Tumor Microenvironment, Metastasis, and Drug Screening

open access: yesAdvanced Healthcare Materials, EarlyView.
Three‐dimensional bioprinting transforms breast cancer modeling from simple constructs into spatially organized, multicellular, perfused, and patient‐derived platforms. This review shows how bioinks, cellular composition, architecture, and flow govern tumor behavior and drug response, while revealing why complexity alone is insufficient without ...
Mustafa Nakipoglu   +7 more
wiley   +1 more source

An Efficient Pyramid Transformer Network for Cross-View Geo-Localization in Complex Terrains

open access: yesDrones
Unmanned aerial vehicle (UAV) self-localization in complex environments is critical when global navigation satellite systems (GNSSs) are unreliable. Existing datasets, often limited to low-altitude urban scenes, hinder generalization.
Chengjie Ju   +3 more
doaj   +1 more source

A case for social enterprise: At the bottom of the top of the pyramid [PDF]

open access: yes, 2010
The bottom of the pyramid (BoP) approach popularised by Prahalad and Hart (2002), calls for the engagement of business with the bottom segment of the global income pyramid, and has attracted considerable attention and debate.
Brueckner, M.   +6 more
core  

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