464 resources related to Electromagnetic spectrum
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IEEE International Conference on Plasma Science (ICOPS) is an annual conference coordinated by the Plasma Science and Application Committee (PSAC) of the IEEE Nuclear & Plasma Sciences Society.
The Conference focuses on all aspects of instrumentation and measurement science andtechnology research development and applications. The list of program topics includes but isnot limited to: Measurement Science & Education, Measurement Systems, Measurement DataAcquisition, Measurements of Physical Quantities, and Measurement Applications.
INTERMAG is the premier conference on all aspects of applied magnetism and provides a range of oral and poster presentations, invited talks and symposia, a tutorial session, and exhibits reviewing the latest developments in magnetism.
The conference program will consist of plenary lectures, symposia, workshops andinvitedsessions of the latest significant findings and developments in all the major fields ofbiomedical engineering.Submitted papers will be peer reviewed. Accepted high quality paperswill be presented in oral and postersessions, will appear in the Conference Proceedings and willbe indexed in PubMed/MEDLINE & IEEE Xplore
Science, technology and applications spanning the millimeter-waves, terahertz and infrared spectral regions
The IEEE Aerospace and Electronic Systems Magazine publishes articles concerned with the various aspects of systems for space, air, ocean, or ground environments.
Experimental and theoretical advances in antennas including design and development, and in the propagation of electromagnetic waves including scattering, diffraction and interaction with continuous media; and applications pertinent to antennas and propagation, such as remote sensing, applied optics, and millimeter and submillimeter wave techniques.
Contains articles on the applications and other relevant technology. Electronic applications include analog and digital circuits employing thin films and active devices such as Josephson junctions. Power applications include magnet design as well asmotors, generators, and power transmission
Broadcast technology, including devices, equipment, techniques, and systems related to broadcast technology, including the production, distribution, transmission, and propagation aspects.
IEEE Communications Magazine was the number three most-cited journal in telecommunications and the number eighteen cited journal in electrical and electronics engineering in 2004, according to the annual Journal Citation Report (2004 edition) published by the Institute for Scientific Information. Read more at http://www.ieee.org/products/citations.html. This magazine covers all areas of communications such as lightwave telecommunications, high-speed data communications, personal communications ...
IEEE Potentials, 2008
This article talks about the electromagnetic spectrum.
IEEE Transactions on Applied Superconductivity, 1999
We report a new RF resonator that operates at high frequency (HF, 3-30 MHz) of electromagnetic spectrum. The resonator is fabricated on a double-sided HTS (YBCO) thin film on a single 2" LAO substrate. The resonator is of smaller size and has a higher Q-value than conventional copper resonators. At temperatures below 77 K the Q-value of the resonator is ...
2007 International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, 2007
A dynamic distributed ship electromagnetic spectrum management system model based on multi-agent system (MAS) was presented in this article. The proposed system model was comprised of five kinds of agent: data-collector agent, device-operator agent, analyze-expert agent, decision-maker agent and require/command agent. Through the cooperation of agents, the system could solve spectrum apportionment for the formation of ships automatically. A well- ...
IRE Transactions on Broadcast Transmission Systems, 1957
The Television Allocations Study Organization was established, at the request of the Federal Communications Commission, by five of the major associations in the television industry. The objective of TASO is to make a thorough study of the engineering factors affecting the allocation of channels for television broadcasting. To carry out this task, six engineering panels have been formed. Each is ...
Proceedings of the Second Joint 24th Annual Conference and the Annual Fall Meeting of the Biomedical Engineering Society] [Engineering in Medicine and Biology, 2002
Over the last decade advances in laser and semiconductor technology has allowed us to investigate the terahertz region of the electromagnetic spectrum as a potential tool for medical imaging. The terahertz frequency range covers the far infrared wavelengths and is sensitive to librational and vibrational modes of molecules. Terahertz radiation is nonionizing and is not highly scattered like visible and ...
IMS 2012 Microapps - Practical Electromagnetic Modeling of Parallel Plate Capacitors at High Frequency
IMS 2011 Microapps - Quickwave Electromagnetic Software with CAD Input and GPU Processing
A Global Engineering Challenge
IMS 2012 Microapps - Fully Integrating 3D Electromagnetic (EM) Simulation into Circuit Simulation
Spectrum 50th Anniversary: Susan Hassler
Part 2 of 3: Workshop on 5G Technologies for Tactical and First Responder Networks
Life Sciences: Surface Enhanced Raman Spectroscopy, and more
Wireless Trends at CES 2013
Founders War Stories
Robo Surgeons - IEEE Spectrum Report
Is This NFC's Breakout Year? CES 2013
Penetrating Conductors - EMC Society Demo
Trends in In-Vehicle Technology: CES 2013
Lighting the Way: Optical Sensors in the Life Sciences
Ciena Corp - IEEE Spectrum Emerging Technology Award, 2019 IEEE Honors Ceremony
Trends in Digital Health Gadgets: CES 2013
CES 2008: Ford and Microsoft Show Off Voice-Activated Sync
Trends in Tablets: CES 2013
IMS 2015: Evolution of Maxwells Theory of Electromagnetism
This article talks about the electromagnetic spectrum.
We report a new RF resonator that operates at high frequency (HF, 3-30 MHz) of electromagnetic spectrum. The resonator is fabricated on a double-sided HTS (YBCO) thin film on a single 2" LAO substrate. The resonator is of smaller size and has a higher Q-value than conventional copper resonators. At temperatures below 77 K the Q-value of the resonator is above 40,000. A 3-pole filter is made by using 3 of this resonator which demonstrates a low insertion loss. This report will discuss the design, fabrication, RF characteristics (return and insertion loss), and the Q-value of the devices in detail. The simulated model of the RF characteristics of the devices will also be given.
A dynamic distributed ship electromagnetic spectrum management system model based on multi-agent system (MAS) was presented in this article. The proposed system model was comprised of five kinds of agent: data-collector agent, device-operator agent, analyze-expert agent, decision-maker agent and require/command agent. Through the cooperation of agents, the system could solve spectrum apportionment for the formation of ships automatically. A well- organized central-plan with hierarchical management architecture was implemented by grading the agents into flagship and the other ships' decision- maker agents groups. It satisfies the distributed and dynamic requirement of ship formation in combined operation.
The Television Allocations Study Organization was established, at the request of the Federal Communications Commission, by five of the major associations in the television industry. The objective of TASO is to make a thorough study of the engineering factors affecting the allocation of channels for television broadcasting. To carry out this task, six engineering panels have been formed. Each is working on a specific phase of the overall problem -- (1) transmitting equipment, (2) receiving equipment, (3) field tests, (4) wave propagation, (5) analysis and theory, and (6) levels of television picture quality. A total of 174 engineers from 92 organizations from all branches of the television industry are serving on TASO panels. The work of the panels is progressing rapidly and it is expected that significant results in the form of reports for the use of the FCC and the television industry will be forthcoming by the middle of next year.
Over the last decade advances in laser and semiconductor technology has allowed us to investigate the terahertz region of the electromagnetic spectrum as a potential tool for medical imaging. The terahertz frequency range covers the far infrared wavelengths and is sensitive to librational and vibrational modes of molecules. Terahertz radiation is nonionizing and is not highly scattered like visible and near infrared light. Terahertz pulse imaging has already demonstrated it effectiveness in vivo and by differentiating between tissue types in particular, benign and malignant tissue in vitro.
Rock-forming minerals comprise the bulk of the rocks found at the surface of the Earth. These include, amongst others, quartz, feldspars, pyroxenes, micas and carbonates, all of which possess diagnostic emission features in the thermal-infrared portion of the electromagnetic spectrum. Using established emission spectra libraries we sought to map the distribution of these minerals using aerial remotely-sensed data centered on Daylight Pass, an alluvial wash dissecting the Grapevine Mountains to the northwest and the Funeral Mountains to the southeast, both of which effectively form the northeast perimeter of Death Valley. An abundance of Late Proterozoic and Cambrian sedimentary beds of dolomite, siltstone and sandstones, in addition to low- to moderate-grade metamorphic rocks form the bulk geology of the area of study, which is largely devoid of vegetation. Thermal-infrared spatially enhanced broadband array spectrograph system (SEBASS) hyperspectral image data was collected at Daylight Pass in mid-July of 2007. Standard reflectance hyperspectral processing techniques were implemented to reduce data dimensionality and, by referencing the emission spectra of both library and laboratory-measured ground specimens, we were able to successfully map the distribution of dominant rock-forming minerals in the form of outcrops and weathering products with a high degree of confidence.
Summary form only given. With the turn of the century came a worldwide resurgence in interest in all things THz - review papers were written, popular press articles published, and numerous technology reviews held. To that end, the author had the opportunity, a few years ago, to co-chair a review on the state of compact THz source technology for the DoD. THz was taken in the review as covering the classical submillimeter frequency band from 300 GHz to 3 THz, with source technologies in the general 100 μW to 1W average power range being the primary focus.During the preparation of the final report it became apparent to the author that a rudimentary analysis of applications and device physics was needed to help put the THz technical pursuit into proper context to help elucidate, as it might be, the opportunities and challenges of working in this demanding region of the electromagnetic spectrum. The main results and conclusions of the study will be presented in this talk.
We have demonstrated that it is possible to use quasicrystals to make circuit with add-drop filter characteristics We employed the Ammann-Beenker tiling as a base to model a photonic quasicrystal lattice of dielectric rods with /spl epsiv/=10. This structure possesses a complete photonic band gap in TM polarization. We discuss advantages and disadvantages of employing photonic quasicrystal as a resonance add-drop filter with respect to the more conventional photonic crystal based filters.
There exist several methods for sensing electric fields at the lowest end of the electromagnetic spectrum. The best known method perhaps is the one related to sensors whose sensing electrodes are in steady movement. The operation of DC field sensors is due to the movement of their sensing electrodes, which enables coupling of the sensor to the field sources in spite of the fact that the sources are DC ones. We show that the operation of most of the DC sensors is made explicable by appreciating that their electrodes movement creates a time varying coupling capacitance in their Thevenin equivalent. It is further shown that the latter Thevenin circuit, which possesses a DC source, can be converted to another Thevenin equivalent with an AC source. It enables a much simpler evaluation. The electrode movement in some of the sensors is directly responsible for introducing an AC component in their Thevenin source without relying on the capacitance variation.
The present communication reports an investigation of a new kind of VCSEL with the operating wavelength at 850 nm of the electromagnetic spectrum. The efficacy of the device lies in that the oxide layer is introduced in order to achieve a better confinement of light in the central portion of the device. Further, the introduction of the low-doped DBR layers near the spacers, and the barrier reduction layers in the DBRs finally present much better efficiency of the device. Simulations have been performed for the analyses of several features of the proposed VCSEL in respect of the different controlling parameters for the device, e.g. the intensity, power and current distributions, gain response, output intensity profile, slope efficiency etc
This project provides recommended practices for the prediction and practical determination of safe distances from radio and radar transmitting antennas when using electric initiators to remotely detonate an explosive charge. Specifically, this document includes mathematical formulas, tables, and charts that allow the user to determine safe distances from RF transmitters with spectrum bands from 0.5 MHz to 300 GHz, including ...
Nanomaterials - Postdoctoral Researcher
Lawrence Livermore National Laboratory