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تعداد نتایج: 302295 فیلتر نتایج به سال:
A technique combining PCR and restriction fragment length polymorphism analysis was used to generate specific DNA fragment patterns from spore extracts of arbuscular mycorrhizal fungi. With the universal primers ITS1 and ITS4, DNA fragments were amplified from species of Scutellospora and Gigaspora that were approximately 500 bp long. The apparent lengths of the corresponding fragments from Glo...
Understanding the molecular parameters that regulate cross-species transmission and host adaptation of potential pathogens is crucial to control emerging infectious disease. Although microbial pathotype diversity is conventionally associated with gene gain or loss, the role of pathoadaptive nonsynonymous single-nucleotide polymorphisms (nsSNPs) has not been systematically evaluated. Here, our g...
The envelope removal method has the advantage of suppressing background spectrum and expanding weak absorption characteristic information. However, for second-class water bodies with a relatively complex quality, there are few studies on inversion chlorophyll (Chl-a) concentration in that consider spectral characteristics. In addition, current research Chl-a was carried out under condition samp...
We study a quantum thermal engine model for which the heat transfer law is determined by Einstein's theory of radiation. The working substance of the quantum engine is assumed to be a two-level quantum system of which the constituent particles obey Maxwell-Boltzmann (MB), Fermi-Dirac (FD), or Bose-Einstein (BE) distributions, respectively, at equilibrium. The thermal efficiency and its bounds a...
This work presents the synthesis of carbon nanofibers and diamond-like carbons by oxygen-acetylene burner method. Acetylene was used as a source, metallic films sprayed on silicon substrates were catalyst. The morphological structural properties obtained nanomaterials studied scanning electron microscopy Raman spectroscopy. influence duration gas concentration ratio structure formation deposite...
http://dx.doi.org/10.1016/j.pmatsci.2016.05.001 0079-6425/ 2016 Elsevier Ltd. All rights reserved. ⇑ Corresponding author at: Department of Materials Science and Engineering, University of Connecticut, Storrs, CT 06269, USA. E-mail address: [email protected] (R. Ramprasad). Tran Doan Huan , Steve Boggs , Gilbert Teyssedre , Christian Laurent , Miko Cakmak , Sanat Kumar , Rampi Ramprasad...
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