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Magazine

Atomically Thin Heat Shield Protects Electronic Devices

  • Magazine Article
  • TBMG-35266
Published 2019-10-01 by Tech Briefs Media Group in United States

Excess heat given off by smartphones, laptops, and other electronic devices contributes to malfunctions and, in extreme cases, can even cause lithium batteries to explode. To guard against issues, engineers often insert glass, plastic, or layers of air as insulation to prevent heat-generating components like microprocessors from causing damage.

Counter IED System

  • Magazine Article
  • TBMG-35356
Published 2019-10-01 by Tech Briefs Media Group in United States

Netline Communications Technologies Ltd. Tel Aviv, Israel

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Q&A

Automotive Engineering: October 2019

  • Magazine Article
  • 19AUTP10_16
Published 2019-10-01 by SAE International in United States

Swamy Kotagiri is Magna's chief technology officer and head of the company's Power & Vision segment. Automotive Engineering contributor Sebastian Blanco spoke with him at the 2019 opening of Magna Electronics' new manufacturing facility near Holly, Michigan. There, the company will be consolidating production lines to make and fully test around 12 million automotive-grade cameras a year. Some highlights of our conversation:

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Thin Nylon Films for Transparent Electronic Devices

  • Magazine Article
  • TBMG-35255
Published 2019-10-01 by Tech Briefs Media Group in United States

Very thin nylon films were created that can be used in electronic memory components. The films are several hundreds of times thinner than a human hair and could be used in bendable electronic devices or for electronics in clothing.

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Aircraft Electrical Installations

AE-8A Elec Wiring and Fiber Optic Interconnect Sys Install
  • Aerospace Standard
  • ARP4404C
  • Current
Published 2019-09-19 by SAE International in United States
It is the purpose of this document to present design recommendations that will provide a basis for satisfactory and safe electrical installations in transport aircraft. This document is not intended to be a complete electrical installation design handbook. However, the requirements for safety extend so thoroughly throughout the electric systems that few areas of the installation are untouched by the document. It is recognized that individual circumstances may alter the details of any design. It is, therefore, important that this document not be considered mandatory but be used as a guide to good electrical application and installation design. Transport aircraft electric systems have rapidly increased in importance over a number of years until they are now used for many functions necessary to the successful operation of the aircraft. An ever increasing number of these functions are critical to the safety of the aircraft and its occupants. The greatly increased power available in electric systems is another factor in aircraft safety. These considerations make it essential that aircraft electrical design practices be carefully considered from the…
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Acceleration Resistant HiK Heat Spreader

Aerospace & Defense Technology: September 2019

  • Magazine Article
  • 19AERP09_04
Published 2019-09-01 by SAE International in United States

As electronic technologies advance in defense and aerospace applications, heat fluxes are becoming larger and more centralized[1,2]. In order to meet the performance specifications of new technologies, thermal solutions must also advance. The push for more capable thermal technologies is evident with the U.S. Air Force Research Laboratory (AFRL) signing an agreement with private companies and contractors for the development of innovative vapor cooling technologies capable of handling high heat fluxes[2].

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Wiring Aerospace Vehicle

AE-8A Elec Wiring and Fiber Optic Interconnect Sys Install
  • Aerospace Standard
  • AS50881G
  • Current
Published 2019-08-06 by SAE International in United States
This specification covers all aspects in Electrical Wiring Interconnection Systems (EWIS) from the selection through installation of wiring and wiring devices and optical cabling and termination devices used in aerospace vehicles. Aerospace vehicles include manned and unmanned airplanes, helicopters, lighter-than-air vehicles, missiles, and external pods.
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Visualizing Motion of Water Molecules for Liquid-Based Electronics

  • Magazine Article
  • TBMG-34892
Published 2019-08-01 by Tech Briefs Media Group in United States

A high-resolution inelastic x-ray scattering technique was used to measure the strong bond involving a hydrogen atom sandwiched between two oxygen atoms. This hydrogen bond is a quantum-mechanical phenomenon responsible for various properties of water, including viscosity, that determine a liquid's resistance to flow or to change shape.

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Nominal High-Altitude Electromagnetic Pulse (HEMP) Waveforms

Aerospace & Defense Technology: August 2019

  • Magazine Article
  • 19AERP08_08
Published 2019-08-01 by SAE International in United States

Calculating the characteristics of high-altitude electromagnetic pulses created by the detonation of a nuclear device.

Even before the Trinity nuclear test in July of 1945, physicists predicted a transient electromagnetic signal would be caused by high-energy photons released from the detonation interacting with the air around the detonation. Predictions of these signals were difficult to make due to the complexity of the physics unleashed by the detonation.

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S400 Copper Media Interface Characteristics Over Extended Distances

AS-1A Avionic Networks Committee
  • Aerospace Standard
  • AS5643/1A
  • Current
Published 2019-07-09 by SAE International in United States
This SAE Aerospace Standard (AS) establishes guidelines for the use of IEEE-1394-2008 Beta (formerly IEEE-1394b) as a data bus network in military and aerospace vehicles. It encompasses the data bus cable and its interface electronics for a system utilizing S400 over copper medium over extended lengths. This document contains extensions/restrictions to “off-the-shelf” IEEE-1394 standards, and assumes that the reader already has a working knowledge of IEEE-1394. This document does not identify specific environmental requirements (electromagnetic compatibility, temperature, vibration, etc.); such requirements will be vehicle-specific and even LRU-specific. However, the hardware requirements and examples contained herein do address many of the environmental conditions that military and aerospace vehicles may experience. One should refer to the appropriate sections of MIL-STD-461E for their particular LRU, and utilize handbooks such as MIL-HDBK-454A and MIL-HDBK-5400 for guidance. This document is referred to as a “slash sheet” and accompanies the AS5643B base standard.
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