Results 81 to 90 of about 30,437 (345)

Electronic scanning of 2-channel monopulse patterns Patent [PDF]

, 1970
Monopulse scanning network for scanning volumetric antenna ...
Schmidt, R. F.
core   +1 more source

Tunable negative permeability in a three-dimensional superconducting metamaterial [PDF]

, 2015
We report on highly tunable radio frequency (rf) characteristics of a low-loss and compact three dimensional (3D) metamaterial made of superconducting thin film spiral resonators. The rf transmission spectrum of a single element of the metamaterial shows
Anlage, Steven M., Kurter, C., Lan, T., Sarytchev, L.   +3 more
core   +3 more sources

2D Magnetic and Topological Quantum Materials and Devices for Ultralow Power Spintronics

Advanced Functional Materials, EarlyView.
2D magnets and topological quantum materials enable ultralow‐power spintronics by combining robust magnetic order with symmetry‐protected, Berry‐curvature‐driven transport. Fundamentals of 2D anisotropy and spin‐orbit‐coupling induced band inversion are linked to scalable growth and vdW stacking.
Brahmdutta Dixit, Yifei Yang, Shawn Li, Yu‐Chia Chen, Qi Jia, Jian‐Ping Wang   +5 more
wiley   +1 more source

A Warp in Progress : H I and Radio Continuum Observations of the Spiral NGC 3145 [PDF]

, 2015
Date of Acceptance: 16/06/2015We present VLA H I and 6 cm radio continuum observations of the spiral NGC 3145 and H I observations of its two companions, NGC 3143 and PGC 029578.
Banfi M., Bruce G. Elmegreen, Calzetti D., Condon J. J., Curtis Struck, de Vaucouleurs G., Debra M. Elmegreen, Elias Brinks, Kamphuis J. J., Kaufman M., Kim W.-T., Kim W.-T., La Vigne M. A., Lee W.-K., Lee W.-K., Leroy A. K., Martini P., Michele Kaufman, Sandage A., Sandage A., Shetty R., Skrutskie M. F., Struck C., Zaritsky D.   +23 more
core   +3 more sources

4D‐Printed Magneto‐Plasmonic Microrobots for Programmable Spatiotemporal De‐Icing

Advanced Functional Materials, EarlyView.
A 4D‐printing strategy is introduced to achieve programmable de‐icing devices. By aligning gold–magnetite nanofillers within a photosensitive resin, the printed structures exhibit dual magnetic and plasmonic functionalities, enabling precise spatio‐temporal ice removal through thermoplasmonic effects.
Amélie Pérot, Andrea Cosola, Eléonore Aïdonidis, Jérôme Fresnais, Clément Sanchez, Philippe Belleville, Giancarlo Rizza, Marco Faustini   +7 more
wiley   +1 more source

A Study on a Miniaturized Planar Spiral Antenna for Partial Discharge Detection in GIS

MATEC Web of Conferences, 2015
Ultra-high frequency (UHF) detection method can effectively detect the signals of partial discharge (PD) in electrical equipment. Hence the authors designed a sensor of miniaturized planar spiral antenna for detecting PD in gas insulated substations ...
Wang Yongqiang, Li Jianfang, Li Changyuan, Ouyang Baolong, Zheng Zhihong   +4 more
doaj   +1 more source

Parallel 3D Bioprinting on SLIPS‐Microarrays

Advanced Functional Materials, EarlyView.
This work introduces the first truly parallel 3D bioprinting method, enabling both the simultaneous fabrication of hundreds of cell laden hydrogel 3D structures and their HTS in individual liquid compartments. By integrating Digital Light Processing (DLP) stereolithography with functional micropatterns, the platform decouples printing time from array ...
Julius von Padberg, Julian A. Serna, Maike Schliephake, Pavel A. Levkin   +3 more
wiley   +1 more source

POSSIBILITIES OF INCREASING THE ENERGY OF RADIO LINES FOR CONTROLLING DRONES

Information and Telecommunication Sciences
Background. The creation of an antenna system consisting of two spiral structures for the 2,4 GHz and 5,8 GHz frequency bands is caused by practical needs determined by the results of using drones to monitor the environment.
Олег Бердников, Юрій Гічко, Сергій Мазор, Тетяна Храновська   +3 more
doaj   +1 more source

Strategies for Loading and Releasing Peptide Therapeutics in Biodegradable Carriers

Advanced Functional Materials, EarlyView.
A biodegradable carrier‐based peptide delivery system is a powerful treatment platform for diverse diseases, owing to its superior therapeutic efficacy and low toxicity. This review examines the conventional peptide‐loaded carrier fabrication process and its current limitations.
Wookyoung Jang, Ki Wan Bong
wiley   +1 more source

Mathematical models of cylindrical spiral antenna

Физика волновых процессов и радиотехнические системы, 2013
In this article the cylindrical spiral antenna with a linear winding pitch that is placed over the perfectly conductive surface is considered. It was shown that with such statement this problem of currents distribution in a spiral is reduced to a solving
V.A. Neganov, D.P. Tabakov
doaj