منابع مشابه
Some Impurities of Vended Milks
Through the courtesy of a colleague, it has been possible to examine some 240 samples of Bristol milk collected under good conditions.
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The changes in the optical transparency of PbTe monolayers induced by post-evaporation heat treatment are described. The monolayers are typically a few microns in thickness and heat treatment reduces the carrier density from about 1018 (n-type) per cm3 to 1 0 1 7 per cm3 : the source material is 1019 (p-type) per cm3. The process seems to involve the diffusion of 0 2 at a reaction rate equivale...
متن کاملThe elastic modulii of evaporated C60 films
Surface acoustic wave (SAW) pulscs cvcrc cxcitctl in C60 films on a variety of substratcs using pulscs from Excimcr lasers for cxcitation. An optical beam deflection technique and polymer elcctrct transduccrs tvcrc utilizcd to detect the propagation of the SAW pulsc with high spatial and tcmporal resolution, allowing an accuracy of bcttcr than O.lfl/o for SAW velocity mcasuremcnts. With this te...
متن کاملAnnealing Effects on Opto-electronic Properties of Thermally-evaporated ITO/Ag/ITO Multilayered Films for Use in Color Filter Electrodes
The effects of post-deposition annealing on optical and electrical properties of thermallyevaporated ITO/Ag/ITO films have been investigated. The thickness of ITO, Ag and ITO films in the multilayered structure was constant at 50, 10 and 40 nm. The multilayered films were deposited on glass substrate without intentional substrate heating. A significant variation in resistivity and transparency ...
متن کاملThe evolution of the nutrient composition of mammalian milks.
1. In mammals, nutrient allocation during lactation is a critical component of maternal care as milk intake promotes juvenile growth and survival, and hence maternal and offspring fitness. 2. Milk composition varies widely across mammals and is hypothesized to have arisen via selection pressures associated with environment, diet and life history. These hypotheses have been proposed based on obs...
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 1930
ISSN: 0022-0302
DOI: 10.3168/jds.s0022-0302(30)93500-x