Fr. John Oliver reflects on forgiveness, and the energies of the heart.

Electromagnetic geophysics in Japan: a conference experience  British Geological Survey

Event Begins: Wednesday, November 13, 2024 12:00pm
Location: Off Campus Location
Organized By: Veteran and Military Services

Naval warfare was confined for centuries to surface combat and undersea clashes. In the 20th century, aerial warfare became the third domain, and shortly thereafter, the electromagnetic spectrum also appeared. When navies began to make use of the airwaves, they soon discovered those waves could also be exploited as a source of information about the opposing force, beginning the discipline of electronic intelligence (ELINT). Furthermore, navies learned the value of interrupting or corrupting the enemy’s communication signals that were transmitted in the “ether," leading to the method of fighting termed electronic warfare (EW).

In this book, Wildenberg cuts through the secrecy about this understandably mysterious domain of combat. He offers details on aircraft and methods and provides a layman’s set of definitions of terms. Wildenberg shares lessons learned from World War II skirmishes as well as clashes in the Korean and Vietnam Wars, while providing the audience with a foundational understanding of this complex form of combat in all its forms.

This book discloses rarely covered concepts and methods that will shape future conflict among great powers.

About the Author:
Thomas Wildenberg is an independent historian and scholar with special interests in aviators, naval aviation, and technological innovation in the military. He has written extensively about the U.S. Navy during the interwar period. His articles have appeared in several scholarly journals, including the Journal of Military History, American Neptune, Air Power History, and U.S. Naval Institute Proceedings. He is the author of several books on naval history covering such varied topics as replenishment at sea, the development of dive bombing, and the history of the torpedo in the U.S. Navy. His interest in the personalities of innovators has led to books on Admiral Joseph Mason Reeves, Billy Mitchel, Charles Stark Draper, and Howard Hughes. His latest work, “The Origins of Aegis,” has just been released by the Naval Institute Press.

Mr. Wildenberg served as a Ramsey Fellow at the National Air and Space Museum from 1999-2000. He is a recipient of the Arthur W. Radford Award for Excellence in Naval Aviation History (2012), the Surface Navy Association Literary Award (2005), and two John Laymen Awards from the North American Society for Oceanic History for best naval history (2013) and best biography (2003). He received the Air Force Historical Foundation's award for the best article in the 2009 volume of Air Power History, was awarded an honorable mention in the Ernest J. Eller Prize in Naval History (1994), and received the Edward S. Miller Naval War College Research Fellowship (1998).

ITU-T K.91 - Guide on electromagnetic fields and health

Radiofrequency electromagnetic field (RF-EMF) exposure levels from mobile and portable devices during different conditions of use

Electromagnetic compatibility requirements and measurement methods for wireline telecommunication network equipment

Guidance for assessment, evaluation and monitoring of human exposure to radio frequency electromagnetic fields

Monitoring of electromagnetic field levels

Electromagnetic field compliance assessments for 5G wireless networks

Electromagnetic compatibility requirements for power equipment in telecommunication facilities

Electromagnetic field strength inside and outside of electric vehicles using wireless power transfer technology

Electromagnetic compatibility requirements for DC power ports of telecommunication network equipment in frequencies below 150 kHz

Guide for the application of electromagnetic security requirements - Overview

Electromagnetic compatibility requirements and measurement methods for digital cellular mobile communication base station equipment

Electromagnetic field compliance assessments for 5G wireless networks

Electromagnetic compatibility requirements for electrical equipment in telecommunication facilities

Case studies of radio frequency- electromagnetic field (RF-EMF) assessment

Electromagnetic compatibility requirements for radio telecommunication equipment

Emission levels and test methods for wireline telecommunication networks to minimize electromagnetic disturbance of radio services

Immunity of home network devices to electromagnetic disturbances

Case studies of radio frequency- electromagnetic field (RF-EMF) assessment

Guidance for assessment, evaluation and monitoring of human exposure to radio frequency electromagnetic fields

Monitoring of electromagnetic field levels

Resolution 72 - (Rev. Geneva, 2022) - Measurement concerns related to human exposure to electromagnetic fields

Monitoring of electromagnetic field levels in Latin America

Location: Electronic Resource- 

A fact sheet about research on electric and magnetic fields and studies examining their potential connection with cancer.

IEEE / Institute of Electrical and Electronics Engineers Incorporated

The Lune can identify that your phone is receiving a call, not from a Bluetooth signal but from the wavelength of the phone’s GSM signal.

A portable, tabletop fluid sampling device simplifies spectral analysis to produce an accurate but inexpensive chromatic fingerprint for fluid samples. In one embodiment, the sampling device uses an array of variable wavelength LED emitters and photodiode detectors to measure Rayleigh scattering of electromagnetic energy from the fluid sample contained in a cuvette. Either the fluid itself, or particles suspended in the fluid can then be identified by performing spectral pattern matching to compare results of a spectral scan against a library of known spectra. A wide range of applications include substance identification, security screening, authentication, quality control, and medical diagnostics.

Disclosed herein are a graphite crucible for electromagnetic induction-based silicon melting and an apparatus for silicon melting/refining using the same, which performs a melting operation by a combination of indirect melting and direct melting. The crucible is formed of a graphite material and includes a cylindrical body having an open upper part through which a silicon raw material is charged into the crucible, and an outer wall surrounded by an induction coil, wherein a plurality of slits are vertically formed through the outer wall and an inner wall of the crucible such that an electromagnetic force created by an electric current flowing in the induction coil acts toward an inner center of the crucible to prevent a silicon melt from contacting the inner wall of the crucible.

A graphite crucible for electromagnetic induction-based silicon melting and an apparatus for silicon melting/refining using the same, which performs a melting operation by a combination of indirect melting and direct melting. The crucible is formed of a graphite material and includes a cylindrical body having an open upper part through which a silicon raw material is charged into the crucible, and an outer wall surround by an induction coil, wherein a plurality of first slits are vertically formed through the outer wall and an inner wall of the crucible, and a plurality of second slits are vertically formed from an edge of the disc-shaped bottom of the crucible toward a center of the bottom.

An electromagnetic induction melting furnace to control an average nominal diameter of the TiB2 cluster of the Al—Ti—B alloy includes a main body containing the melted alloy; and a multi-layer coil disposed on the main body, wherein a frequency of the alternative current of each coil of the multi-layer coil is different, and the alloy is heated by inducing a magnetic field generated by the alternative currents. The selection of the frequency and the changeable magnetic field may reduce the cohesion force between the TiB2 grains of the Al—Ti—B alloy to control the average nominal diameter of the TiB2 cluster.

An electromagnetic induction melting furnace to control an average nominal diameter of the TiC cluster of the Al—Ti—C alloy includes a main body containing the melted alloy; and a multi-layer coil disposed on the main body, wherein a frequency of the alternative current of each coil of the multi-layer coil is different, and the alloy is heated by inducing a magnetic field generated by the alternative currents. The selection of the frequency and the changeable magnetic field may reduce the cohesion force between the TiC grains of the Al—Ti—C alloy to control the average nominal diameter of the TiC cluster.

An electromagnetic interference (EMI) absorber includes an EMI conductive sheet having first and second portions, the first portion absorbing EMI from an EMI absorption target and the second portion for conducting EMI to an EMI discharge target, and an elastic member covered by the first portion.

An electromagnetic field measuring apparatus capable of measuring an electromagnetic field for a minuscule area in which electronic devices are densely packed with a high sensitivity is provided. In an electromagnetic field measuring apparatus according to the present invention, the amplitude level of signal light (pf) is adjusted by the analyzer (34) by adjusting its angle with respect to the plane of polarization of the signal light (pf) based on an amplitude level control signal (eb) supplied from the calculation control unit (40). An amplitude level control signal (eb) is supplied from the calculation control unit (40) to the analyzer (34) based on the spectrum (ea) of an electric signal (ed) measured by an RF spectrum analyzer (39). The amplitude level ration between the carrier and the sideband contained in the signal light (ph) incident on the optical receiver (38) is controlled to a fixed value.

An electromagnetic wave reverberation chamber includes: an electromagnetic wave absorbing apparatus installed in an intended space of the electromagnetic wave reverberation chamber for adjusting a reflection characteristic of an inside of the electromagnetic wave reverberation chamber, wherein the electromagnetic wave absorbing apparatus have an electromagnetic bandgap structure including a plurality of unit cells arranged periodically.

A system and method of identifying changes utilizing radio frequency polarization includes receiving a reflected and/or transmitted polarized radio frequency signal at a receiver, filtering, amplifying and conditioning the received signal, converting the received signal from an analog format to a digital format, processing the digital signal to elicit a polarization mode dispersion feature of the received signal, and comparing the polarization mode dispersion features to a known calibration to detect a change in a characteristic of the target object.

A first set of antibodies are bonded to a substrate, and are exposed to and bonded with target antigens. A second set of antibodies are bonded to nanoparticles, and the nanoparticle labeled antibodies are exposed to the targeted antigens. An electromagnetic write-head magnetizes the nanoparticles, and then a read-sensor detects the freshly magnetized nanoparticles. The substrate comprises a flexible film or a Peltier material to allow selective heating and cooling of the antigens and antibodies. Nanoparticles of different magnetic properties may be selectively paired with antibodies associated with different antigens to allow different antigens to be detected upon a single scan by the read-sensor.

An electromagnetic pump is provided, which includes a hollow tubular body extending along a longitudinal direction, a piston mounted so as to be able to move inside the hollow tubular body, a solenoid, supplied with alternating current and assembled around at least a portion of the body and a magnetic envelope surrounding at least a portion of the body. The presence of a magnet magnetized longitudinally in a predetermined direction and a magnetic envelope orienting and channeling flux lines created by the magnet either around the solenoid or directly inside themselves creates an oscillating magnetic force on the piston.

An electromagnetic system consists of an electric circuit comprising two solenoids wired in series, one mounted either side and proximate to a toroid. Voltage is applied across the toroid and the solenoids in a specific sequence which alters the inductance behavior of the system, resulting in an inductance gain and no mutual inductance between the toroid and the two solenoids.

Disclosed is a system for producing electromagnetic radiation with enhancement from a drift tube containing a cylindrical Smith-Purcell structure. The system includes a magnetically insulated linear oscillator. The oscillator includes a cylindrical resonant cavity having a traveling wave electron gun and a cooperating anode. The drift tube is formed of a hollow cylindrical conductive element that is positioned within a resonant cavity of the oscillator. The drift tube includes an inner surface and a pair of ends. The drift tube may be adapted such that the interaction between an electron beam, from the electron gun, passes through the inner space of the drift tube, and the internal grating, so as to produce RF radiation by the Smith-Purcell Effect. Spacing, face angle and shape of the grating, and the energy of the electron beam are determinants of the frequency of the RF radiation.

Disclosed embodiments include electromagnetic flow regulators for regulating flow of an electrically conductive fluid, systems for regulating flow of an electrically conductive fluid, methods of regulating flow of an electrically conductive fluid, nuclear fission reactors, systems for regulating flow of an electrically conductive reactor coolant, and methods of regulating flow of an electrically conductive reactor coolant in a nuclear fission reactor.