Results 81 to 90 of about 182,979 (366)

Role of Histidine‐Containing Peptoids in Accelerating the Kinetics of Calcite Growth

open access: yesAdvanced Functional Materials, EarlyView.
Amphiphilic histidine‐containing peptoids mimic carbonic anhydrase (CA) to accelerate calcite step growth. In the presence of Zn2+, they promote the deprotonation of HCO3−, the desolvation of Ca2+, and the reorganization of interfacial hydration layers, thereby reducing the activation barrier for calcite growth.
Mingyi Zhang   +5 more
wiley   +1 more source

Investigation on damage evaluation index with ductility factor based on simulation analysis for loading test of piping support structure

open access: yesMechanical Engineering Journal
The importance of seismic probabilistic risk assessment has drawn considerable attention for improving the seismic safety of nuclear facilities against earthquakes that exceed the design input ground motion.
Yukihiko OKUDA   +3 more
doaj   +1 more source

Some Comments on the Entropy-Based Criteria for Piping

open access: yesEntropy, 2015
This paper is an extension of previous work which characterises soil behaviours using the grading entropy diagram. The present work looks at the piping process in granular soils, by considering some new data from flood-protection dikes.
Emöke Imre   +6 more
doaj   +1 more source

Residual stress characterization of single and triple-pass autogenously welded stainless steel pipes [PDF]

open access: yes, 2016
Using neutron diffraction the components of the residual stress field have been determined in the region near a mid-length groove in two identical austenitic stainless pipes in which weld beads had been laid down.
Aloraier   +26 more
core   +3 more sources

Injectable Dual‐Network Hydrogel System for Osteochondral Repair Combining Immunomodulation, Mechanical Adaptability, and Enhanced Tissue Integration

open access: yesAdvanced Functional Materials, EarlyView.
A UV‐triggered injectable dual‐network hydrogel is reported as the first application of bletilla striata polysaccharide (BSP) in osteochondral repair. By integrating methacrylamide‐modified BSP and nitrobenzaldehyde‐functionalized hyaluronic acid, the system achieves immunomodulation, mechanical reinforcement, and dynamic tissue adhesion, thereby ...
Jiaming Cui   +10 more
wiley   +1 more source

Dense Nanofibrillar Collagen–Silica Hybrids with High Strength and ECM‐Mimetic Tissue Integration

open access: yesAdvanced Functional Materials, EarlyView.
Dense nanofibrillar collagen–silica hybrids are engineered by synchronizing collagen fibrillogenesis with silica condensation, producing printable scaffolds that unexpectedly approach native extracellular matrix organization and strength. These cell‐free constructs guide endogenous cell‐infiltration, enable localized matrix remodeling, and integrate ...
Norein Norein   +7 more
wiley   +1 more source

Dual‐Ligand Metal‐Organic Frameworks via In Situ Amidoxime Engineering for Selective Ion Separation

open access: yesAdvanced Functional Materials, EarlyView.
Inspired by microbial ion‐trapping mechanisms, a mild and universal strategy is developed to construct highly porous amidoxime‐functionalized MOFs. DFT calculations and molecular force measurements reveal that the dual‐ligand amidoxime configuration significantly strengthens Ga(III) affinity.
Zhifang Lv   +9 more
wiley   +1 more source

Performance optimization of aeroengine piping system: State of the art and challenges

open access: yesPropulsion and Power Research
Performance characterization and optimization of aeroengine piping systems are critical for ensuring high-reliability operation. The inherent structural complexity of piping systems, combined with excitation forces from non-uniform flow fields, induces ...
Cheng-Wei Fei   +4 more
doaj   +1 more source

Piping and tubing technology: A compilation [PDF]

open access: yes
Piping and tubing techniques which have potential industrial use are presented in summary ...

core   +1 more source

Bioinspired Polypeptide Dendrimer‐Modified Thin‐Film Composite Membranes for Selective Lithium‐Magnesium Separation with DFT Insights

open access: yesAdvanced Functional Materials, EarlyView.
We fabricated a biomimetic dendrimer‐modified thin‐film nanocomposite membrane with a coordination‐assisted ion‐selective interface. pH‐responsive polypeptide sites preferentially bind Mg2+ and promote Li+ permeation, as predicted by density functional theory calculations of metal‐ligand interactions.
Mehrasa Yassari   +7 more
wiley   +1 more source

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