Search results
Results from the WOW.Com Content Network
Free files can be moved to the Wikimedia Commons Subcategories. This category has the following 6 subcategories, out of 6 total. ... CDN, Library of Congress images ...
British Library Over a million images, taken mostly from illustrations in 17th, 18th and 19th Century books, released into the public domain, as announced on the British Library blog. Metadata about the images and the books from which they come is also available for download on Github. Pixnio – A large collection of high resolution public ...
Free content from Federal Research ... Images from the Library of Congress (6 C, 99 F) L. Librarians at the Library of Congress ... National Digital Library Program;
The National Digital Library was created through bipartisan support in the United States Congress. Initially publicly funded with $15 million over five years, a public-private partnership of entrepreneurs and philanthropists led to more than $45 million in private sponsorship from 1994 through 2000.
More than 50 years ago, MSI was introduced using secondary ion mass spectrometry (SIMS) to study semiconductor surfaces by Castaing and Slodzian. [5] However, it was the pioneering work of Richard Caprioli and colleagues in the late 1990s, demonstrating how matrix-assisted laser desorption/ionization (MALDI) could be applied to visualize large biomolecules (as proteins and lipids) in cells and ...
Artstor Digital Library: Associated Press. AP Images; Bridgeman Art Library: California Digital Library: California State University, Northridge, Oviatt Library Digital Collections Camera Press: Chicago Daily News (1902–1933), collection of over 55,000 images on glass plate negatives Corbis Images: Depositphotos: Stock Images: 164,000,000 ...
A mass spectrum is a histogram plot of intensity vs. mass-to-charge ratio (m/z) in a chemical sample, [1] usually acquired using an instrument called a mass spectrometer. Not all mass spectra of a given substance are the same; for example, some mass spectrometers break the analyte molecules into fragments; others observe the intact molecular ...
NIST Mass Spectral Search v.3.0 Commercial Program: This software contains the NIST/EPA/NIH Mass Spectral Library of electron ionization (EI) and the NIST Tandem Library of product-ion mass spectra in a searchable database. Additional features include the NIST MS Interpreter Program and AMDIS.