Results 81 to 90 of about 1,230,762 (259)

Self‐Assembled Crystalline Peptoid Nanomaterials as Metal‐Free Enzyme Mimics for Enhanced Carbon Dioxide Hydration and Precipitation

open access: yesAdvanced Functional Materials, EarlyView.
Inspired by metal‐free carbonic anhydrases (CAs) that achieve efficient catalysis without metal cofactors, we herein report a sequence‐defined supramolecular peptoid platform that mimics metal‐free CAs and exhibits hydrolytic activity via a supramolecular assembly‐mediated proton‐transfer mechanism.
Progyateg Chakma   +8 more
wiley   +1 more source

Annual report (Online); Division of Mineral Resources Management annual report

open access: yes
Annual; Description based on: 2004; title from PDF cover (viewed Dec. 12, 2006).; Ohio Department of Natural Resources, Division of Mineral Resources Management is a result of the merger of Ohio Department of Natural Resources, Division of Mines and ...
Ohio. Division of Mineral Resources Management.
core   +1 more source

Phytochemical and mineral content in leaves, stem and bark of Pterocarpus santalinoides (nturukpa) from Afikpo, Ebonyi State, Nigeria

open access: yesJournal of Applied Sciences and Environmental Management, 2018
The study assessed the phytochemical and mineral content in leaves, stem and bark of Pterocarpus santalinoides sampled from three (3) stands at Itim Autonomous Community in Afikpo, Ebonyi State.
P.C. Ogbonna, M.C. Idumah
doaj   +1 more source

Unique Role of Microstructure of a Bioimplant Zinc Alloy and Protein Content of Simulated Body Fluid in Corrosion and Fracture

open access: yesAdvanced Functional Materials, EarlyView.
BSA addition to physiological solutions enhances resistance of a Zn alloy to stress corrosion cracking (SCC) but reduces its corrosion resistance. Extended surface characterization explains the contrasting influences on corrosion and SCC. Unexpectedly, the alloy suffers transgranular SCC (TGSCC), despite extensive grain boundary precipitation. Thorough
RK Singh Raman   +9 more
wiley   +1 more source

A Procedure for Assessing Heavy Mineral Resources Potential

open access: yes, 1990
Supplies of placer heavy minerals, such as ilmenite, rutile, zircon, and monazite, are anticipated to be in short supply by early in the next century. The depletion of conventional onshore deposits coupled with the declaration of the Exclusive Economic ...
Berquist, C. R.   +2 more
core   +1 more source

Heavy Mineral Concentrations In Sediments Of The Virginia Inner Continental Shelf

open access: yes, 1990
The Virginia Division of Mineral Resources and the Virginia Institute of Marine Science investigated the occurrence of heavy minerals in the offshore sediments of Virginia.
Berquist, C. R.   +2 more
core  

Mechanics of Telson Ridges in Mantis Shrimp for Impact Analysis and Implications for Bioinspired Elastic Shell Designs

open access: yesAdvanced Functional Materials, EarlyView.
The mantis shrimp telson reveals how ridged biological shields control deformation under impact. Inspired by this architecture, telson‐inspired ridged curved shells transform ridge geometry and macroscopic curvature into bidirectional snap‐through, tunable stiffness, and enhanced hysteretic energy dissipation for multifunctional architected materials ...
Phani Saketh Dasika   +5 more
wiley   +1 more source

Beyond Thin Film Limits—Superhard and Hydrogen‐Free Amorphous Carbon Coatings With Over 100 µm Thickness

open access: yesAdvanced Functional Materials, EarlyView.
For the first time, an extreme‐thick laser‐arc PVD ta‐C (DLC) coating exceeding 100 µm is demonstrated, opening up new possibilities for ultra‐high load bearing capacity. This superhard amorphous carbon architecture combines >50% sp3 bonding, robust adhesion and self‐supporting performance, shielding substrates from plastic flow under extreme contact ...
Martin Zawischa   +3 more
wiley   +1 more source

MINERAL CONTENT OF SOME CRUSTACEANS AND MOLLUSCS IN TURKIYE AND RISK ASSESSMENTS FOR PUBLIC HEALTH

open access: yesScientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry
This study examined the mineral and heavy metal content of nine different seafood sold in retail markets in Türkiye. Frozen ring squid, frozen Chilie mussel meat, frozen clam meat, frozen shrimp meat, frozen octopus, fresh Mediterranean mussel, frozen ...
DERYA C. GENCER , DEMET KOCATEPE
doaj  

A Nutritional Survey of Commercially Available Grass-Finished Beef

open access: yesMeat and Muscle Biology, 2019
Consumer interest in the source of their food, its environmental footprint, and the impact of diet on health has supported the growth of the grass-finished beef (GFB) industry.
Chad A. Bitler   +5 more
doaj   +2 more sources

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