Download or read book X Ray and Electron Probe Analysis in Biomedical Research written by K. M. Earle and published by Springer. This book was released on 2013-12-11 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book X ray and Electron Probe Analysis in Biomedical Research written by Kenneth Martin Earle and published by . This book was released on 1969 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Microautoradiography and Electron Probe Analysis written by U. Lüttge and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 245 pages. Available in PDF, EPUB and Kindle. Book excerpt: In biological literature, several definitions of quantitative autoradio graphy are given. The term is defined as either the determination and com parison of the density of silver grains above various structures or under varying conditions, or the determination of absolute quantities of radio activity. In both these cases, photometric measurement serves for more rapid and more exact evaluation of grain densities than would be possible by visual counting of the grains. The equipment generally used for the photometric measurement of silver grains consists of a microscope, a photocell, an electronic amplifier system and a display unit. Grains can be made accessible to photometric evaluation by various kinds of microscopic illumination: 1. Substage bright-field illumination. 2. Substage dark-field illumination. 3. Incident dark-field illumination. 4. Vertical bright-field illumination. With all these types of illumination, the relationship between the luminous flux I absorbed by the film, scattered into the objective and reflected or diffracted, and the flux 10 which is not affected by the film is used as a measure of grain density. Since these are differential measurements, the light beam I transmitted by the film is in itself a measure of grain density if the luminous flux 10 incident on the grains is kept constant. This approach has been used in a large number of measuring setups.

Download or read book Symposium on X Ray and Electron Probe Analysis written by and published by . This book was released on 1964 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Principles and Practice of X Ray Spectrometric Analysis written by E.P. Bertin and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 1098 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the first edition of this book was published early in 1970, three major developments have occurred in the field of x-ray spectrochemical analysis. First, wavelength-dispersive spectrometry, in 1970 already securely established among instrumental analytical methods, has matured. Highly sophisticated, miniaturized, modular, solid-state circuitry has replaced elec tron-tube circuitry in the readout system. Computers are now widely used to program and control fully automated spectrometers and to store, process, and compute analytical concentrations directly and immediately from ac cumulated count data. Matrix effects have largely yielded to mathematical treatment. The problems associated with the ultralong-wavelength region have been largely surmounted. Indirect (association) methods have extended the applicability of x-ray spectrometry to the entire periodic table and even to certain classes of compounds. Modern commercial, computerized, auto matic, simultaneous x-ray spectrometers can index up to 60 specimens in turn into the measurement position and for each collect count data for up to 30 elements and read out the analytical results in 1--4 min-all corrected for absorption-enhancement and particle-size or surface-texture effects and wholly unattended. Sample preparation has long been the time-limiting step in x-ray spectrochemical analysis. Second, energy-dispersive spectrometry, in 1970 only beginning to assume its place among instrumental analytical methods, has undergone phenomenal development and application and, some believe, may supplant wavelength spectrometry for most applications in the foreseeable future.

Download or read book Research Grants Index written by National Institutes of Health (U.S.). Division of Research Grants and published by . This book was released on 1975 with total page 1224 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research Awards Index written by and published by . This book was released on 1989 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1975 with total page 1058 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biomedical Index to PHS supported Research written by and published by . This book was released on 1990 with total page 1060 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Current Catalog written by National Library of Medicine (U.S.) and published by . This book was released on with total page 936 pages. Available in PDF, EPUB and Kindle. Book excerpt: First multi-year cumulation covers six years: 1965-70.

Download or read book Proceedings in Print written by and published by . This book was released on 1972 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Principles and Techniques of Scanning Electron Microscopy written by M. A. Hayat and published by John Wiley & Sons. This book was released on 1974 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Referral Guidelines for Funding Components of PHS written by and published by . This book was released on 1990 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biomedical Research Technology Resources written by Research Resources Information Center and published by . This book was released on 1984 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book ASTM Special Technical Publication written by and published by . This book was released on 1964 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biomedical Research Technology Resources written by and published by . This book was released on 1984 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cumulated Index Medicus written by and published by . This book was released on 1991 with total page 1484 pages. Available in PDF, EPUB and Kindle. Book excerpt: