Results 31 to 40 of about 7,273 (215)

Embedded Direct Ink Writing of Thermoset and Elastomeric Polymers via Frontal Polymerization

Advanced Functional Materials, EarlyView.
Embedded frontal polymerization direct ink writing (FP‐DIW) combines frontal ring‐opening metathesis polymerization with embedded 3D printing to decouple deposition from curing. A yield‐stress support bath stabilizes low‐viscosity inks, while on‐demand thermal initiation enables controlled front propagation. This approach expands the accessible feature
Mohammad Tanver Hossain, Yun Seong Kim, Pallab Layak, Pranav Krishnan, Young bum Lee, Minjiang Zhu, Shubh Singh, Philippe H. Geubelle, Paul V. Braun, Jeffery W. Baur, Nancy R. Sottos, Sameh H. Tawfick, Randy H. Ewoldt   +12 more
wiley   +1 more source

Orthogonal Genetic Algorithm for Planar Thinned Array Designs

International Journal of Antennas and Propagation, 2012
An orthogonal genetic algorithm (OGA) is applied to optimize the planar thinned array with a minimum peak sidelobe level. The method is a genetic algorithm based on orthogonal design.
Li Zhang, Yong-Chang Jiao, Bo Chen, Hong Li   +3 more
doaj   +1 more source

Architecture‐Driven Functional Coupling in Vertically Aligned Nanocomposites

Advanced Functional Materials, EarlyView.
Vertically aligned nanocomposites define a growth‐engineered architecture in which vertical interfaces, strain fields, defect pathways, and phase connectivity are created simultaneously. This review shows how these architectural features couple ferroic, optical, ionic, electrochemical, and device responses, establishing design rules and open challenges
Md Shatil Islam‐Shanto, Javier Zamudio‐García, Abraham Sánchez‐Caballero, David Marrero‐López, Vincenzo Esposito   +4 more
wiley   +1 more source

Research on the Scattering Characteristics and the RCS Reduction of Circularly Polarized Microstrip Antenna

International Journal of Antennas and Propagation, 2013
Based on the study of the radiation and scattering of the circularly polarized (CP) antenna, a novel radar cross-section (RCS) reduction technique is proposed for CP antenna in this paper.
W. Jiang, T. Hong, S. X. Gong
doaj   +1 more source

Ground‐State Charge‐Transfer Doping in Donor–Acceptor Semiconducting Polymers

Advanced Functional Materials, EarlyView.
This work demonstrates controlled ground‐state charge‐transfer complex formation (GS‐CTC) and doping in a series of diketopyrrolopyrrole‐based donor–acceptor semiconducting polymers paired with a π‐conjugated penta‐t‐butylpentacyanopentabenzo[25]annulene “cyanostar” macrocycle. Complementary experimental techniques show how subtle molecular, electronic,
Tanner L. Smith, Akshay N. Shah, Tanya A. Balandin, Michel De Keersmaecker, Paramasivam Mahalingam, Debapriya Gupta, Siqi Yu, Eui Hyun Suh, Pushkar Dalal, Erin L. Ratcliff, Scott P. O. Danielsen, Tse Nga Ng, Amar H. Flood, Jason D. Azoulay   +13 more
wiley   +1 more source

Chemical Strategies for Multistimuli Responsive Dynamic Covalent Materials in Regenerative Medicine

Advanced Healthcare Materials, EarlyView.
Multistimuli responsive dynamic covalent materials integrate reversible chemistry with the complex chemical, mechanical, and biochemical cues of regenerative environments. This review highlights chemical strategies based on orthogonal dynamic bonds, multicomponent networks, and hierarchical architectures to regulate mechanics, degradation, and ...
Saurabh Joshi, Matthew B. Baker, Dominik Schauenburg   +2 more
wiley   +1 more source

Differentially-Fed, Wideband Dual-Polarized Filtering Antenna With Novel Feeding Structure for 5G Sub-6 GHz Base Station Applications

IEEE Access, 2019
In this paper, a differentially fed, wideband dual-polarized patch antenna with filtering response is proposed. A novel E-shaped feeding structure with one end shorted to the ground is proposed to excite a square patch antenna, and an extra resonant mode
Yapeng Li, Zhipeng Zhao, Zhaoyang Tang, Yingzeng Yin   +3 more
doaj   +1 more source

Microfluidic Engineering of Microgels: A Review of Emerging Technologies, Materials, Fabrication Strategies, and Applications

Advanced Healthcare Materials, EarlyView.
Recent advances in microfluidic technologies for microgel fabrication are critically reviewed, highlighting the capabilities and limitations of major microfluidic platforms and discussing how platform design, material selection, and crosslinking strategies influence microgel architecture and functionality. Current challenges and future opportunities in
Afshin Abrishamkar, Laura Neely, Cynthia Pham, Nada Ibrahim, Alexis Larios‐Cervantes, Ben A. Kertesz, Todd Hoare   +6 more
wiley   +1 more source

Design of a Planar Transmission Line Balun Based on Novel Phase Inverter

IEEE Access, 2020
In this paper, a planar ultrawideband (UWB) transmission line balun based on a novel phase inverter is proposed, which consists of three coaxial connector to double-sided parallel-strip line (DSPSL) transitions, a two-section Wilkinson divider, and a ...
Ya-Qing Yu, Wen Jiang, Lv Qin, Hao-Yu Shao, Shu-Xi Gong   +4 more
doaj   +1 more source

VHF/UHF Miniaturized Ferrite-EBG Composited Choke Structures

IEEE Access, 2021
Parasitic currents on the sheaths of the coaxial cables will deteriorate the performance of the antenna, so the choke structures are needed. While a-quarter-wavelength choke sheaths at VHF and UHF are very long, miniaturized ferrite-EBG composited choke ...
Dongjie Qin, Baohua Sun
doaj   +1 more source