نتایج جستجو برای: crystallinity index
تعداد نتایج: 401720 فیلتر نتایج به سال:
A medical physicist in the United States, Cho Zang-Hee, who pioneered the proton emission tomography (pet) scanner, had his curiosity aroused 6 years ago, when he injured his back and found almost instant relief with acupuncture treatment. So he started carrying out experiments with functional magnetic resonance imaging (fmri) on the usual human guinea-pigs -volunteer medical students. He flash...
2 Crystallinity of Electrochemically Assembled Platinum Nanowires 3 Alexander Nerowski,† Markus Poetschke,† Ulrich Wiesenhütter, Jürgen Nicolai, Ulana Cikalova, 4 Arezoo Dianat,† Artur Erbe, Jörg Opitz, Manfred Bobeth,† Larysa Baraban,*,† 5 and Gianaurelio Cuniberti†,‡ 6 †Institute for Materials Science and Max Bergmann Center of Biomaterials and ‡Center for Advancing Electronics Dresden, Dresd...
Al-PTFE (Al-polytetrafluoroethene) is an important kind of Reactive Material (RM), however only limited importance was placed to the effect of crystallinity of PTFE on the mechanical and reactive behavior. This paper investigated the influence of crystallinity on the compression behavior of Al-PTFE at strain rates range from 10−2 to 3 × 103 s−1. Two kinds of samples were prepared by different s...
Electrospun one dimensional (1D) and two dimensional (2D) carbon based polymer nanocomposites are studied in order to determine the effect provided by the two differently structured nanofillers on crystallinity and thermo-mechanical properties of the nanofibres. The nanomaterials studied are pristine carbon nanotubes, oxidised carbon nanotubes, reduced graphene oxide and graphene oxide. Functio...
The main objective of this work is supporting the use sustainable solutions for management and reuse agricultural waste from cereal harvest, such as oats, barley, triticale, making sheets artisan paper, innovating process with different proportions cellulose obtained straw residues. physical mechanical properties showed that basis weight (66–96 g/m2), thickness (19–300 μm), burst strength (68.9...
Trachybasalt scoria from a cinder cone near the Mexican volcanic front contain phenocrysts of olivine with chromite inclusions, apatite, augite and hornblende, with microphenocrysts of plagioclase. The water-saturated phase relations reproduce the phenocryst assemblage between 1040 C and 970 C with water contents of between 2 5 and 4 5%(50---150MPa).The absence of biotite phenocrysts in the sco...
OBJECTIVE The physicochemical properties of hydroxyapatite (HA) granules were observed to affect the biological behavior of graft materials. The aim of this work was to analyze the tissue response of two HA granules with different crystallinity and Ca/P ratio in vivo. MATERIAL AND METHODS The HA granules were produced in the Biomaterials Laboratory (COPPE/UFRJ). The testing materials were HA ...
Samples from two type of polyethylene, with low and high density, had been subjected to three different initial processing. The samples were heated to 170 oC and then cooled by different cooling rating in air, in mold (10 oC/min cooling rate) and in 0.0 oC water. Following this step, each sample irradiated by 10 MeV electron beam. The gel content of the samples, which is a measure of interchain...
Present paper examines the effect of acid type and hydrolysis conditions on morphology, size, yield and crystallinity of produced cellulose nanocrystal (CNC). Cellulose obtained from waste office paper was hydrolyzed under the same conditions by Maleic acid (MA) and Sulfuric Acid (SA) in separate treatments. Also this cellulose was hydrolyzed under different timing and temperature by MA and SA...
Organic-inorganic perovskite (CH3NH3PbI3), due to an appropriate energy gap to absorb sunlight, is used as an absorbent layer in third generation solar cells. Crystallinity of light absorbing layer plays an important role in the performance of perovskite solar cells and substrate plays an important role on crystallinity of light absorbing layer. In superstructure solar cells, alumina (aluminum ...
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