Results 101 to 110 of about 7,795 (299)

Slight Truncation Changes in Iron Oxide Nanocubes Strongly Affect Their Magnetic Properties

Advanced Functional Materials, EarlyView.
Subtle variations in nanoparticle morphology can lead to significant changes in functional properties. An automated shape‐fitting method captures minor differences in corner truncation between iron oxide nanocubes of similar sizes synthesized under identical conditions, revealing pronounced disparities in their magnetic and hyperthermia behavior ...
Kingsley Poon, Raúl López‐Martín, Verner Håkonsen, Nader Yaacoub, Francisco J. Terán, Alberto López Ortega, Jose A. De Toro, Gurvinder Singh   +7 more
wiley   +1 more source

Triple-Mode Cavity Bandpass Filter on Doublet With Controllable Transmission Zeros

IEEE Access, 2017
On the basis of doublet and its properties, a class of multiple-mode narrow band bandpasss filter is designed and fabricated by simultaneously exploiting the three resonant modes in a single rectangular cavity: TE101, TE011, and TM110 modes.
Zai-Cheng Guo, Sai-Wai Wong, Jing-Yu Lin, Lei Zhu, Qing-Xin Chu, Qingfeng Zhang, Yang Yang   +6 more
doaj   +1 more source

Exploring Curvature Effects in Direct‐Written 3D Curved Hollow Magnetic Nanoshells

Advanced Functional Materials, EarlyView.
Fabricated by a hybrid FEBID/CVD method, 3D PtC/Co3Fe core–shell heterostructures with engineered curvature and shell thickness exhibit complex reversal modes with axially symmetric N'eel‐type domain walls. XMCD‐PEEM combined with full‐scale micromagnetic simulations reveal how curvature and thickness govern the domain wall energy landscape and shape ...
Oleksii M. Volkov, Fabrizio Porrati, Florian Kronast, Riccardo Hertel, Pavlo Makushko, Olha Bezsmertna, Alexander Kuprava, Mohamad‐Assaad Mawass, Sven Barth, Michael Huth, Denys Makarov   +10 more
wiley   +1 more source

Characterization and computation of transmission zeros of singular multivariable systems

, 1990
Presented is a state-space characterization of transmission zeros of \u27singular\u27 linear multivariable system models (E, A, B, C, D), where E is a singular matrix.
Gu, Guoxiang, Misra, Pradeep, Van Dooren, Paul   +2 more
core  

Polarizable Vanadium Dipoles Promote Water Dissociation on Vanadium‐Based Metal Organic Framework

Advanced Functional Materials, EarlyView.
The polarization of unpaired V 3d electrons weakens the H─O bond to improve water dissociation by the dual Vδ+:O─H and Pλ−:H─O coupling hydrogen bonds formation and relaxation. P@V‐MOF electrocatalyst shows low overpotentials (94 mV in acid, 178 mV in neutral, and 77 mV in alkaline solutions) with excellent stability for effective overall water ...
Xinjuan Liu, Jun Xu, Minmin Fan, Jingcheng Xu, Mengyuan Li, Yun Gong, Weiwei Yang, Lei Li, Yong Zhou, Deqiang Zhao, Yuhua Xue, Xingtao Xu, Chang Q. Sun, Liming Dai   +13 more
wiley   +1 more source

Design of Multi-standard Single/Tri/Quint-Wideband Asymmetric Step Impedance Resonator Filters With Adjustable Transmission Zeros [PDF]

, 2019
This paper presents an original Asymmetric Stepped-Impedance Resonator (ASIR) filter combined with meander coupled-line structures and enabling the realisation of finite transmission zeros and the implementation of multi-band bandpass filters.
Mustafa S. Bakr, Tu, Yuxiang X., Bakr, M.S., Al-Yasir, Yasir I.A., Yasir I.A. Al-Yasir, Parchin, Naser Ojaroudi, Abd?Alhameed, Raed A., Tu, Yuxiang, Yuxiang Tu, Ojaroudi Parchin, Naser, Mshwat, Widad A., Bakr, MS, James M. Noras, Al-Yasir, Y, Asharaa, A, Widad A. Mshwat, Naser Ojaroudi Parchin, Asharaa, Abdalfettah S., Abd-Alhameed, R, Noras, JM, Raed A. Abd-Alhameed, Tu, Y, Parchin, NO, Abdalfettah S. Asharaa, Bakr, Mustafa S., Abd-Alhameed, Raed, Al?Yasir, Yasir I.A., Mshwat, W, Noras, James M., Mshwat, Widad F.A.G.A.   +29 more
core   +1 more source

Liquid Phase Transmission Electron Microscopy: A Window into the Early Stages of Complex Material Formation

Advanced Functional Materials, EarlyView.
Liquid‐phase transmission electron microscopy enables direct observation of nucleation and growth processes in solution. This review is dedicated to the remembrance of Helmut Cölfen and highlights recent studies on complex materials—oxides, biominerals, organic–inorganic crystals—which were central to his research activity. It summarizes key milestones,
Charles Sidhoum, Vinavadini Ramnarain, Nathaly Ortiz Peña, Dris Ihiawakrim, Clément Sanchez, Ovidiu Ersen   +5 more
wiley   +1 more source

Enhanced Terahertz Thermoelectricity Via Engineered Van Hove Singularities and Nernst Effect in Moiré Superlattices

Advanced Functional Materials, EarlyView.
Moiré band engineering in graphene/hexagonal boron nitride–based superlattices unlocks van Hove singularities (VHSs) for terahertz (THz) optoelectronics. Tuning the Fermi level near these singularities, associated with secondary neutrality points (SNPs), enhances the photothermoelectric response.
Leonid Elesin, Arthur L. Shilov, Subhajit Jana, Ilya Mazurenko, Pierre A. Pantaleon, Mikhail Kashchenko, Nikita Krivovichev, Viacheslav Dremov, Igor Gayduchenko, Takashi Taniguchi, Kenji Watanabe, Yibo Wang, Kostya S. Novoselov, Dmitry A. Svintsov, Grigory Goltsman, Elena I. Titova, Denis A. Bandurin   +16 more
wiley   +1 more source

3D FSS with multiple transmission zeros and pseudo elliptic response

, 2019
The three-dimensional frequency selective surface (3D FSS) with band reject multiple transmission zeros and pseudo-elliptic response is designed from two-dimensional (2D) periodic array of shielded micro strip lines to realize wide out-of–band radio wave
Bimal Raj Dutta, Chhaya Dalela, Dutta, Bimal Raj, Dalela, Chhaya, Binod Kumar Kanaujia, Kanaujia, Binod Kumar   +5 more
core   +1 more source

Super High-Selectivity Fifth-Order Bandpass Filter with Twelve Transmission Zeros [PDF]

Radioengineering, 2018
A fifth-order bandpass filter (BPF) with super high selectivity using three pairs of coupled lines and two open stubs is proposed. Twelve transmission zeros (TZs) from 0 to 2f_0 (f_0 denotes center frequency of the passband) and five transmission poles ...
Y.-J. Cai, F.-Y. Zhang, K.-D. Xu, D.-H. Li   +3 more
doaj