Results 21 to 30 of about 10,624 (269)

Biophysical studies of modified PVC sheet based on sunflower oil for antistatic and blood bags applications

Scientific Reports
In this work, the surface of polyvinyl chloride PVC sheet was modified by blending it with sunflower seed oil SSO to obtain PVC sheet/SSO films of ratios 100/0, 90/10, 80/20, 70/30, 60/40, and 50/50 (v/v)% using the solution casting method.
Shimaa Farag Hamieda, Abeer Reffaee, Mona Saied   +2 more
doaj   +1 more source

Enhanced Thermal Conductivity and Dielectric Properties of Iron Oxide/Polyethylene Nanocomposites Induced by a Magnetic Field

Scientific Reports, 2017
Iron Oxide (Fe3O4) nanoparticles were deposited on the surface of low density polyethylene (LDPE) particles by solvothermal method. A magnetic field was introduced to the preparation of Fe3O4/LDPE composites, and the influences of the magnetic field on ...
Qingguo Chi, Tao Ma, Jiufeng Dong, Yang Cui, Yue Zhang, Changhai Zhang, Shichong Xu, Xuan Wang, Qingquan Lei   +8 more
doaj   +1 more source

An Ultralight High-Directivity Ceramic Composite Lens Antenna for 220–330 GHz

IEEE Access, 2021
This work presents the characterization of Lithium molybdenum oxide (Li2MoO4, LMO) hollow glass microspheres (HGMS) ceramic composite from 0.1 to 1 THz and an associated bullet shaped lens used with WR3.4 for 220-330 GHz band.
Mikko Kokkonen, Ali Ghavidel, Nuutti Tervo, Mikko Nelo, Sami Myllymaki, Heli Jantunen   +5 more
doaj   +1 more source

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur, Faruk Kaya, Bora Derin, Mustafa Lütfi Öveçoğlu, Ju Li, Duygu Ağaoğulları   +5 more
wiley   +1 more source

Investigating charge trapping in ferroelectric thin films through transient measurements

Frontiers in Nanotechnology, 2022
A measurement technique is presented to quantify the polarization loss in ferroelectric thin films as a function of delay time during the first 100s after switching. This technique can be used to investigate charge trapping in ferroelectric thin films by
Suzanne Lancaster, Patrick D. Lomenzo, Moritz Engl, Bohan Xu, Thomas Mikolajick, Thomas Mikolajick, Uwe Schroeder, Stefan Slesazeck   +7 more
doaj   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source

Radioprotective potential of pomegranate peel extract against gamma irradiation-induced hazards

Bulletin of the National Research Centre
Background While gamma irradiation’s damaging biological effects are well-established, the natural radioprotective agents from agricultural waste remain an underexplored area of significant potential.
Shimaa Farag Hamieda, Mona Saied, K. N. Abd-El-Nour, Amal I. Hassan   +3 more
doaj   +1 more source

Interfacial 2D Montmorillonite Nanocoatings Enable Sandwiched Polymer Nanocomposites to Exhibit Ultrahigh Capacitive Energy Storage Performance at Elevated Temperatures

Advanced Science, 2022
Polymer dielectrics are essential for advanced electrical and electronic power systems due to their ultrafast charge–discharge rate. However, a long‐standing challenge is to maintain their dielectric performance at high temperatures.
Yifei Wang, Zongze Li, Thomas J. Moran, Luis A. Ortiz, Chao Wu, Antigoni C. Konstantinou, Hiep Nguyen, Jierui Zhou, Jindong Huo, Kerry Davis‐Amendola, Peinan Zhou, Bryan D. Huey, Yang Cao   +12 more
doaj   +1 more source

Karl Popper and the Mechanisms of Hydrogen Embrittlement

Advanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

Improved direct current electrical properties of XLPE modified by graftable antioxidant and crosslinking coagent at a wide temperature range

High Voltage
To enhance the DC electrical performance of cross‐linked polyethylene (XLPE), the graftable antioxidant methacrylic acid 2‐hydroxy‐3‐(4‐anilinoanilino) propyl ester (GA), which contains carbonyl and amino groups, and the crosslinking coagent ...
Xu Yang, Hong Zhao, Chengcheng Zhang, Chunyang Li, Xindong Zhao, Jiaming Yang, Xuan Wang   +6 more
doaj   +1 more source