Results 61 to 70 of about 2,477,472 (284)

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

Rock physics model for deep coal-bed methane reservoir based on equivalent medium theory: A case study of Carboniferous-Permian in Eastern Ordos Basin

open access: yesOpen Geosciences
The deep coal-bed methane (CBM) resources represented by the Benxi Formation in the Eastern Ordos Basin have enormous potential and have achieved industrial breakthroughs in recent years.
Zhang Bing, Zhang Haifeng, Pan Fuyou
doaj   +1 more source

Electrochemical Pathways for Nitrate Conversion to Ammonia: From Environmental Challenges to Ammonia Economy

open access: yesAdvanced Functional Materials, EarlyView.
This perspective presents recent advances in electrocatalytic nitrate reduction, focusing on reaction mechanisms, catalyst design, and electrolyzer configurations. Key challenges in selectivity, stability, and practical wastewater treatment are highlighted, while future directions for advancing sustainable ammonia synthesis and nitrate remediation are ...
Xintong Li   +9 more
wiley   +1 more source

Little Rock Garden Club records

open access: yes, 1923
This collection contains organizational and financial records of the Little Rock Garden Club, including correspondence, board minutes, photographs, scrapbooks, and ...
Little Rock Garden Club (Little Rock, Ark.)
core   +1 more source

Karyotype depends on sperm head morphology in some amniote groups

open access: yesFrontiers in Genetics
The karyotype of an organism is the set of gross features that characterize the way the genome is packaged into separate chromosomes. It has been known for decades that different taxonomic groups often have distinct karyotypic features, but whether ...
Eric M. Kramer   +4 more
doaj   +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

Synthesis of Nickel-Based Nanoparticles by Pulsed Laser Ablation in Liquids: Correlations between Laser Beam Power, Size Distribution and Cavitation Bubble Lifetime

open access: yesMetals
Pulsed laser ablation in liquids (PLAL) is a colloidal synthesis technique attracting significant interest from the scientific community due to the quality of the nanoparticles being produced.
Atikur Rahman, Grégory Guisbiers
doaj   +1 more source

Seismic rock physics

open access: yesThe Leading Edge, 2017
Rock physics studies the relationship between physical and elastic properties of rocks and is the basis of quantitative seismic interpretation. It has arguably given exploration geophysicists a solid quantitative basis to their interpretation of seismic data.
openaire   +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

UA Little Rock Seminar in Public History (HIST 7391) files on the Greater Little Rock Chamber of Commerce, 1999

open access: yes, 1999
This collection contains the project report, interview transcripts, and audiocassette tapes from the University of Arkansas at Little Rock's Seminar in Public History's 1999 project, "Accomplishing Things Most People Think Just Happen: A History of the ...
University of Arkansas at Little Rock. Department of History.
core  

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