Tag: Rare

Rare Earths As a Probe of Environment and Electron-Phonon Interaction in Optical Materials


Free Download Rosanna Capelletti, "Rare Earths As a Probe of Environment and Electron-Phonon Interaction in Optical Materials"
English | ISBN: 1606921371 | 2009 | 79 pages | PDF | 5 MB
The rare earth electronic transitions, widely exploited for optical applications, occur within the shielded 4f shell and originate very sharp absorption (or emission) lines in spectra of crystals measured at low temperatures. This work covers a spectral region as wide as 75-25000 cm-1 at a resolution as fine as 0.01 cm-1.

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The Rare Earths Era Strategic Metals Dependency & World Order


Free Download The Rare Earths Era: Strategic Metals Dependency & World Order by Juan Manuel Chomon
English | February 15, 2024 | ISBN: 1949762890 | 273 pages | MOBI | 0.76 Mb
The Rare Earths Era: Strategic Metals Dependency & World Order addresses the centrality of 17 rare metallic elements necessary to the manufacture of a vast panoply of products developed through modern technology and in use worldwide—from smartphones, televisions, computers, and medical scanners to components of the most modern weapons systems in Western arsenals. Rare earths are hence crucial to strategic planning, whether for business, combating climate change, warfare, or ascendancy in world order.

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Rare Earth Elements A New Approach to the Nexus of Supply, Demand and Use Exemplified along the Use of Neodymium in Permanent


Free Download Rare Earth Elements: A New Approach to the Nexus of Supply, Demand and Use: Exemplified along the Use of Neodymium in Permanent Magnets By Volker Zepf (auth.)
2013 | 157 Pages | ISBN: 3642354572 | PDF | 5 MB
This thesis deals with Rare Earth Elements (REE), especially with neodymium used in permanent magnets, from a very scientific basis by providing basic research data. Despite the fact that REE are newsworthy and very important elements for a considerable bandwidth of todays’ technologies, accompanied by the monopolistic supply-situation and Chinese politics, there are inexplicable data discrepancies about REE which have been recognized frequently but usually have not been addressed accordingly. So this analysis started with the hypothesis that the four application areas, namely computer hard disk drives (HDD), mobile phones, wind turbines and e-mobility (automotive traction), account for about 80% of the global annual neodymium-demand. The research methodology was a laboratory analysis of the composition of used magnets for HDDs and mobile phones and a literature and official report analysis of wind turbine and automotive neodymium use. The result was amazing and the hypothesis had to be withdrawn as these four areas only account for about 20% of neodymium use. This result raises some questions concerning actual use and thus potential recycling options.

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The War in South Pacific Rare Photographs From Wartime Archives (Images of War)


Free Download The War in South Pacific: Rare Photographs From Wartime Archives (Images of War) by Jon Diamond
English | April 15, 2017 | ISBN: 1473870615 | 176 pages | PDF | 69 Mb
The Japanese invaded the Solomon Islands in May 1942 and in July began construction of a large airfield on Guadalcanal. In February 1943, after an epic six-month struggle, they were expelled from the island and it became a staging base for U.S. Admiral William F. Halsey and his South Pacific force. Commanding a powerful force of Navy, Marine Corps, and Army assets as well as land-and carrier-based aircraft, Halsey’s mission was to neutralize the Japanese presence in the South Pacific before moving on to Japan itself. As explained and depicted in this fascinating book, the campaign was eventually successful but only after some of the bitterest fighting of World War II. The fanatical opposition called for extreme measures from U.S., British, and Australian land, sea, and air forces. With detailed narrative and captions, the many archival photographs in The War in the South Pacific make for a superb record of this legendary conflict.

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Electronic Structure of Rare-Earth Nickelates from First-Principles


Free Download Electronic Structure of Rare-Earth Nickelates from First-Principles by Harrison LaBollita
English | PDF EPUB (True) | 2024 | 109 Pages | ISBN : 3031715470 | 40 MB
This thesis demonstrates the value of theoretical approaches in the discovery of new superconducting materials. It reports a detailed study of the recently discovered nickel-oxide (nickelate) superconductors using multiple first-principles computational tools, from density functional theory to dynamical mean field theory. In the context of superconductivity, discoveries have generally been linked to serendipitous experimental discovery; this thesis reports some of the few examples of predictions of new superconductors that have later been realized in practice, a prime example of the significance of the methodology it expounds. Overall, it represents a seminal systematic work in the electronic structure theory of the emergent field of nickelate superconductivity.

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The Tech Ecosystem Silicon Valley’s Rare Birds


Free Download The Tech Ecosystem: Silicon Valley’s Rare Birds by Sung hun Kwag, Claude 3.5 Sonnet, Perplexity Perplexity
English | August 5, 2024 | ISBN: N/A | ASIN: B0DC9RX6SD | 152 pages | EPUB | 0.97 Mb
Explore the whimsical and insightful world of Silicon Valley through "The Tech Ecosystem: Silicon Valley’s Rare Birds." This book offers a unique exploration of the tech industry’s vibrant ecosystem, comparing companies and their unique cultures to various bird species.

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AnalogXAi Trident Series 80B (Rare) Vintage Mixing Desk Profiles (JSONGENOMEBYOD)


Free Download AnalogXAi Trident Series 80B (Rare) Vintage Mixing Desk Profiles (JSON/GENOME/BYOD) | 1.94 MB
The Trident Series 80B Desk is an iconic analog mixing console renowned for its exceptional sound quality and classic design. Developed by Trident Audio Developments in the late 1970s, the Series 80B quickly became a staple in professional recording studios around the world.

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