Results 61 to 70 of about 3,408,578 (301)

Disentangling Bulk and Surface Contributions to Charge and Discharge Fading in High‐Voltage LiCoO2

open access: yesAdvanced Functional Materials, EarlyView.
High‐voltage operation of LiCoO2 accelerates capacity fading through bulk and surface degradation. By introducing a LiTaO3 coating to selectively suppress surface degradation, bulk and surface contributions to charge and discharge fading are decoupled.
Hyungjoon Moon   +6 more
wiley   +1 more source

Chitin‐Derived Carbon‐Metal Functional Materials

open access: yesAdvanced Functional Materials, EarlyView.
Functional carbon materials are synthesized from combination of biopolymer (chitin) and iron precursors. The resultant material exhibits superior surface area and adsorptive properties compared to carbon materials synthesized directly from pure chitin.
Herry Fang   +7 more
wiley   +1 more source

Melanin's Role in Balancing Mechanical Strength and Reproductive Output in Environmentally Stressed Fungal Spores

open access: yesAdvanced Functional Materials, EarlyView.
Melanin content directly controls fungal spore mechanical properties, with pigmented spores achieving rupture forces two orders of magnitude higher than hyaline spores. Environmental stress drives this quantity‐quality tradeoff; stressed species invest energy in melanin‐reinforced, mechanically superior thick‐walled, super‐hydrophobic spores, while ...
Atul Agrawal, Steven E. Naleway
wiley   +1 more source

Stone inventory of the site complex “Koksharovsky Hill sanctuary — Yuryinskoe settlement” (based on materials of excavations in 2013 and 2015) [PDF]

open access: yesВестник археологии, антропологии и этнографии
The article presents detailed statistical, typological and mineralogical characteristics of stone products from the “Koksharovsky Hill sanctuary — Yuryinskoe settlement” complex of sites derived from the excavations of A.F.
Serikov Yu.B.
doaj   +1 more source

Autonomous Multi‐Objective Nanoscale Characterization of Combinatorial (Al, Sc, B)N Films Reveals Composition‐Dependent Ferroelectric Regimes

open access: yesAdvanced Functional Materials, EarlyView.
Autonomous scanning probe microscopy and multi‐objective Bayesian optimization navigate a ternary (Al,Sc,B)N combinatorial library. Registered photoluminescence, electron‐probe compositional mapping, and X‐ray diffraction connect local electromechanical function to defect‐sensitive emission, composition, and crystal structure.
Yu Liu   +12 more
wiley   +1 more source

Bronze Age Burials of the East Manych Mound Groups Containing Stone Implements

open access: yesOriental Studies, 2018
The article discusses the results of the archaeological survey of burials of the East Manych mound groups containing stone implements. Within the mound groups, 329 barrows containing 1 541 burials with 1 329 ones, i. e.
E. Burataev, M. Ochir-Goyaeva, E. Kekeev
doaj   +1 more source

A Holistic Platform Approach for Developing Robust Pulmonary mRNA Delivery: Integrating Novel Phenolic Acid‐Derived Ionizable Lipids and Device Engineering

open access: yesAdvanced Functional Materials, EarlyView.
An integrated pulmonary mRNA delivery platform combining novel biodegradable syringic acid‐derived ionizable lipids, design‐of‐experiments formulation optimization, and vibrating‐mesh nebulizer engineering enabled stable aerosolization and efficient lung delivery.
Neha Kaushal   +21 more
wiley   +1 more source

Middle Stone Age social connectivity: Can stone tools indicate the transmission of cultural ideas?

open access: yesSouth African Journal of Science
Humans are unique in their ability to build complex social networks that foster cooperation, knowledge sharing and innovation. Evidence from the African Middle Stone Age provides some of the earliest signs of these connections, alongside increasingly ...
Precious Chiwara-Maenzanise   +2 more
doaj   +1 more source

R. S. Gabyashev’s Role in the Study of the Neolithic in the Volga-Kama Region

open access: yesПоволжская археология, 2013
The works by R.S. Gabyashev characterizing the Neolithic cultures of the Volga-Kama region with their combed and stroke-ornamented ceramics are analyzed in the article.
Lychagina Evgeniia L
doaj   +1 more source

Globalisation of Stone Tools and Beginnings of Mechanical Processing of Polymers [PDF]

open access: yes
Based on research on influence of rubber and plastics on globalization, an interesting question arose: can we define the first globalization way of material culture? Manufacturing of first stone tools can be seen at the site of Gona, Ethiopia (dated to 2,
Igor Catic   +2 more
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