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Rice U graphene composite may keep wings, blades and transmission lines ice-free; Joule heating

2016-01-25 19:55:36| Green Car Congress

Tags: lines transmission heating rice

 

Accuracy Of DTF Measurements On New Spools Of Transmission Line

2016-01-25 15:41:41| rfglobalnet Downloads

With proper consideration and technique, DTF measurements of raw spools of cable can be made accurately enough in the field to identify handling damage with a reasonable uncertainty bound. This complements the other specification based measurements already done on the spools using frequency domain data. It is important to note that the same cannot be said for DTF testing of complete antenna systems. In this circumstance the frequency limiting aspects of the system and the ambiguity in the load termination (antenna) make pass/fail testing of components in the entire system problematic. This white paper discusses the best course of action to take for making baseline measurements for future comparison, and provides measurement examples.

Tags: line accuracy transmission measurements

 
 

Achromatic Lenses offer 500-1,100 nm broadband transmission.

2016-01-25 14:31:05| Industrial Newsroom - All News for Today

Consisting of 2 optical components cemented together to form doublet, TECHSPEC® YAG-BBAR Coated Achromatic Lenses provide alternative to air-spaced focusing doublets. Lenses are available in 12 models with diameters from 6.25–25 mm and focal lengths from 12.5–200 mm. With surface quality of 40-20, units are optimized for less than 0.25% absolute reflectivity at 532 nm and 1,064 nm. Lenses can be used to focus Nd:YAG lasers and correct on-axis spherical and chromatic aberrations.

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Sturgeon Electric Completes 500-kV Transmission Project for BPA

2016-01-22 17:07:00| Transmission & Distribution World

MYR Group subsidiary Sturgeon Electric Company, Inc. successfully completed construction of the Central Ferry-Lower Monumental Transmission Line Project read more

Tags: project electric transmission completes

 

Let There Be LiFi: Data Transmission at Speed of Light

2016-01-22 04:21:23| Wireless - Topix.net

An Easter egg left in Apples iOS 9.1 firmware spotlights a new data transmission technology 14 times faster than WiGig using something in every home. On New Year's Eve, a 19-year-old novice developer, Chase Fromm, tweeted a screenshot of iOS 9.1 firmware code that includes the text: 'LiFiCapability' that has Apple devotees beaming with anticipation that their iPhone may be able to download seasons of their favorite shows in the time it takles to download a movie.

Tags: of data light speed

 

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