Results 51 to 60 of about 223,485 (301)

Coordinated Architectural and Chemical Reinforcement in the Crushing Mandible of a Soldier Termite

open access: yesAdvanced Functional Materials, EarlyView.
The crushing mandible of a soldier termite withstands substantial biting loads despite lacking mineral. Its cuticle is partitioned: convex teeth pair hardness and zinc enrichment with aligned chitin fibers for contact durability, while stiffer concave regions between teeth carry bending loads.
Andrew Tran Nguyen   +16 more
wiley   +1 more source

A normalised seawater strontium isotope curve: possible implications for Neoproterozoic-Cambrian weathering rates and the further oxygenation of the Earth [PDF]

open access: yes, 2007
The strontium isotope composition of seawater is strongly influenced on geological time scales by changes in the rates of continental weathering relative to ocean crust alteration.
Shields, GA, Shields, G. A.
core  

Prediksi Kuat Tekan Beton Agregat Recycled Campuran Air Laut dengan Schmidt Rebound Hammer Test

open access: yesRekayasa Sipil, 2023
Nowadays, using recyled aggregate and seawater as replacing natural aggregate and freshwater in mixing have been main priority to be a new concrete construction material.
Lusman Sulaiman   +3 more
doaj   +1 more source

Circularly Polarized Electroluminescence and Spin‐Polarized Carrier Transport in Chiral‐Doped Polymer Films

open access: yesAdvanced Functional Materials, EarlyView.
Chiral dopants induce supramolecular chirality in an achiral polymer (PFO), generating spin‐polarized carriers via the chiral‐induced spin selectivity (CISS) and suggesting a possible contribution of Spin‐polarized carrier transport to circularly polarized electroluminescence (CPEL).
Kazuyuki Asahi   +4 more
wiley   +1 more source

Pilot scale study of chlorination-induced transport property changes of a seawater reverse osmosis membrane [PDF]

open access: yes, 2013
A pilot-scale study was performed to assess variations of reverse osmosis (RO) membrane water permeance (A) and salt retention (Robs) induced by chlorination and to compare them with those observed at the lab-scale. A chlorination protocol was adapted to
Causserand, Christel   +3 more
core   +1 more source

Global trends of seawater desalination research: An AI-assisted bibliometric analysis during 2019–2024

open access: yesDesalination and Water Treatment
As the global water crisis intensifies, the significance of seawater desalination has become increasingly apparent. This study employed a bibliometric analysis of scholarly publications and patent applications from 2019 to 2024 to identify recent ...
Song Hanwen   +5 more
doaj   +1 more source

Biodegradable 3D‐Printable and Coatable Antifouling Composites for Marine Applications

open access: yesAdvanced Functional Materials, EarlyView.
Marine biofouling damages submerged surfaces and raises greenhouse gas emissions. Biodegradable antifouling biocomposites were developed by hot‐mixing beeswax, Tween 80, and calcium stearate or stearic acid. Adjusting the component ratio enables processing via hot‐pressing, 3D‐printing, or dip‐coating.
Gabriele Corigliano   +17 more
wiley   +1 more source

Identification of the risk factors in concentrated seawater from seawater desalination process

open access: yesGongye shui chuli
Based on the whole desalination process, this paper reviewed the source and fate of risk factors in concentrated seawater including salinity, temperature, chemicals used for pretreatment, chemicals required in desalination process, by-products, corrosion
FENG Xuemin   +6 more
doaj   +1 more source

Fractionation of 226Ra and Ba in the Upper North Pacific Ocean

open access: yesFrontiers in Marine Science, 2022
Investigations conducted during the GEOSECS program concluded that radium-226 (T1/2 = 1602 y) and barium are tightly correlated in waters above 2500 m in the Atlantic, Pacific and Antarctic Oceans, with a fairly uniform 226Ra/Ba ratio of 2.3 ± 0.2 dpm ...
Pieter van Beek   +7 more
doaj   +1 more source

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

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