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71.
Heavy ion fusion cross sections and compound nucleus average spin values obtained from distribution of fusion barriers are
discussed. Various shapes of distribution functions are studied using a truncated Gaussian distribution function (TGD). It
is shown that fusion cross section and average spin values are less sensitive to different parametrization of TGD function,
whereas the second derivative of the product of energy and fusion cross sections (w.r.t. energy), obtained from the corresponding
TGD functions are significantly different depending on the shape of the barrier distribution function. It is also shown byχ
2 analysis of fusion cross section data that some systems favour a narrow Gaussian distribution function whereas others, for
which the vibrational and rotational collective states are less important, favour a flat barrier distribution. A physical
interpretation of the dynamical process that gives rise to different barrier distribution is given in the framework of microscopic
coupled channel calculations. 相似文献
72.
73.
Chetan Chanmal Meenal Deo Abhimanyu Rana Jyoti Jog Satishchandra Ogale 《Solid State Communications》2011,151(21):1612-1615
A nanocomposite comprising of multiwalled carbon nanotubes (MWCNT) embedded in ferroelectric Poly(vinylidene fluoride) PVDF polymer matrix is examined for electric field induced transport modulation. The pulsed laser deposition (PLD) grown thin films of the nanocomposite with different MWCNT content were characterized. When used as a channel layer in a field effect transistor configuration, a strong electric field modulation of the transport was realized just below the percolation threshold. We believe that this nanocomposite non-percolating channel concept can provide several opportunities for FET devices for organic electronics. 相似文献
74.
Manoj Kumar Neha Sikri Sulekha Chahal Jitender Sharma Bhavna Sharma Poonam Yadav Monika Bhardwaj Divya Vashishth Pooja Kadyan Sudhir Kumar Kataria Sunita Dalal 《Molecules (Basel, Switzerland)》2021,26(13)
Urease is an enzyme that plays a significant role in the hydrolysis of urea into carbonic acid and ammonia via the carbamic acid formation. The resultant increase in pH leads to the onset of various pathologies such as gastric cancer, urolithiasis, hepatic coma, hepatic encephalopathy, duodenal ulcers and peptic ulcers. Urease inhibitors can reduce the urea hydrolysis rate and development of various diseases. The Cinnamomum genus is used in a large number of traditional medicines. It is well established that stem bark of Cinnamomum cassia exhibits antiulcerogenic potential. The present study evaluated the inhibitory effect of seven extracts of Cinnamomum camphora, Cinnamomum verum and two pure compounds Camphene and Cuminaldehyde on urease enzyme. Kinetic studies of potential inhibitors were carried out. Methanol extract (IC50 980 µg/mL) of C. camphora and a monoterpene Camphene (IC50 0.147 µg/mL) possess significant inhibitory activity. The Lineweaver Burk plot analysis suggested the competitive inhibition by methanol extract, hexane fraction and Camphene. The Gas Chromatography-Mass Spectroscopy (GC–MS) analysis of hexane fraction revealed the contribution of various terpenes. The present study targets terpenes as a new class of inhibitors that have potential therapeutic value for further development as novel drugs. 相似文献