Results 91 to 100 of about 3,034 (213)

Effect of Nanoparticles Type and Content on the Antimicrobial Activity of Magnetoelectric Polymer‐Based Composites

open access: yesMacromolecular Bioscience, EarlyView.
Magnetoelectric P(VDF‐TrFE) nanocomposites containing CFO or Fe3O4 nanoparticles were developed to generate electroactive microenvironments under magnetic stimulation. At 1 Hz, particularly with 20% CFO, strong antimicrobial effects were observed against E. coli and S. aureus. This approach highlights the potential of magnetically activated surfaces to
Joana Moreira   +6 more
wiley   +1 more source

Additive Manufacturing of Cobalt Iron Oxide‐Based Photopolymer Resin Magnetoactive Polymer Composites Through Stereolithography

open access: yesMacromolecular Materials and Engineering, EarlyView.
In this study, novel resin/cobalt iron oxide magnetic actuation polymer composites (MAPCs) are synthesized and optimized for stereolithography (SLA)‐based 3D printing. Printing parameters are tuned for dimensional accuracy and print quality. Comprehensive physicochemical, mechanical, and magnetic characterization identifies the optimal formulation ...
Ambreen Afridi   +2 more
wiley   +1 more source

Novel Pressure Control Equipment for High Speed EMUs

open access: yes, 2012
Different from the common active or passive pressure protection devices, novel pressure control equipment for high speed EMUs adopted dual-motor driving device with both active and passive pressure protection functions to implement pressure control inside saloon.
openaire   +1 more source

High-Speed EMUs: Characteristics of Technological Development and Trends

open access: yesEngineering, 2020
Hongwei Zhao   +2 more
openaire   +2 more sources

Key Technology Design of Variable Gauge Running System for 400 km/h High-speed EMU

open access: yes机车电传动, 2020
In order to adapt to different gauge sizes, based on the wheel set structure of the traditional EMU, the key technology design of the 400 km/h high-speed EMU variable gauge running system was carried out, including the clearance design of wheel and axle,
Dianmai ZHOU   +4 more
doaj  

Arsonic Acid Functional Polymers Enable Stabilization of Iron Oxide Nanoparticles in Aqueous Solution

open access: yesMacromolecular Rapid Communications, EarlyView.
Arsonic acid containing diblock copolymers are developed to incorporate arsonic acid moieties for surface anchoring to IONPs, along with water soluble PEG blocks to impart colloidal stability in aqueous environments. The resulting polymer‐coated IONPs are evaluated for stability in physiological media and cytocompatibility.
Nhu Thao Huynh   +10 more
wiley   +1 more source

Traction System Design of High Speed Test EMUs

open access: yes, 2012
The traction system of test EMUs used for performance and high speed test was based on asynchronous AC motor and satisfied with EN standard. Technical parameter design on system structure and critical components of the traction system were analyzed and verified, which validated had good performance and satisfied the highest level requirements.
openaire   +1 more source

Topology Optimization Design of High-Speed EMU Car Body Structure

open access: yesChengshi guidao jiaotong yanjiu
ObjectiveCar body structure is the core load-bearing component of a high-speed EMU (Electric Multiple Unit). The rationality of its design directly affects various performance indicators of the train, such as operational safety, operational efficiency ...
Qingbin YU   +4 more
doaj   +1 more source

Bimetallic M2B Boride Nanoparticles: A Robust and Recyclable Platform for Dehydration‐Driven Condensation of Aldehydes

open access: yesChemistryOpen, EarlyView.
Metal borides (MBs) emerge as a versatile class of nanomaterials, featuring high stability and bifunctional Lewis‐acidic/basic active sites. Despite these properties, their applications in CN bond formation are less explored. Herein, we report the first systematic use of M2B‐type boride nanoparticles as efficient and magnetically recoverable catalysts
Akram Ashouri   +6 more
wiley   +1 more source

Engaging the public in plant science: Communication facilitators and barriers of scaling up a citizen science campaign

open access: yesPeople and Nature, EarlyView.
Abstract Volunteers have been involved in nature observations for decades through citizen science initiatives, providing large data sets as well as problem identification that allow a more complete understanding of many natural phenomena. Although communication is a core component in citizen science, the key factors that determine its effectiveness in ...
Kristiina Gibson   +18 more
wiley   +1 more source

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