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Natural Science is an international journal dedicated to the latest advancements in natural sciences. The goal of this journal is to provide a platform for scientists and academicians all over the world to promote, share, and discuss various new issues and developments in different areas of natural sciences. All manus…
H. R. Tamaddon-Jahromi, M. F. Webster, K. Walters
Recent numerical studies on pressure-drops in contraction flows have introduced a variety of constitutive models to compare and contrast the competing influences of extensional vis-cosity, normal stress and shear-thinning. Early work on pressure-drops employe…
Xiu-Min Gao, Ming-Yu Gao, Song Hu, Han-Ming Guo, Jian Wang, Song-Lin Zhuang
Focal shift of radially polarized Bessel-modu- lated Gaussian (QBG) beam by phase shifting is investigated theoretically by vector diffraction theory. The phase shifting distribution is the function of the radial coordinate. Calculation results show that inte…
Yuan-Bin Yu, Qing-Nian Wang, Hai-Tao Min, Peng-Yu Wang, Chun-Guang Hao
Dynamic Programming (DP) algorithm is used to find the optimal trajectories under Beijing cycle for the power management of synergic electric system (SES) which is composed of battery and super capacitor. Feasible rules are derived from analyzing the optimal…
D. Balasubramanian, R. Jayavel, P. Murugakoothan
A organic nonlinear optical material, L-alanine maleate (LALM) was synthesized. Bulk Single crystals of LALM have been grown by slow cooling method with a solution pH of 5. The solubility of L-alanine maleate has been deter-mined for various temperatures. Lar…
Jin-Ying Yang, Jian-Ren Lu, Hong-Yue Dang, Yan Li, Bao-Sheng Ge
Xylose is the second major fermentable sugar present in lignocellulosic hydrolysates, so its fermentation is essential for the economic con- version of lignocellulose to ethanol. However, the traditional ethanol production strain Sacch- aromyces cerevisiae do…
Jia-Hai Zhang, Yao-Qun Xu
Neural networks have been shown to be pow-erful tools for solving optimization problems. In this paper, we first retrospect Chen’s chaotic neural network and then propose several novel chaotic neural networks. Second, we plot the figures of the state bifurcat…
Li-Qun Wang, Yu-Huan Dun, Heng Tang, Tong-Zhang Wang
This paper describes a single fluidized bed by the two-step gasification of the working method, process and biomass and coal co-gasification by a certain proportion of the results of a typical run. The results show that the biomass gasifi-cation technology fo…
Pravin Singare, Ram Lokhande
The ion exchange resin Amberlite IRA-400 in iodide and bromide form where equilibrated separately with the respective labeled iodide and bromide ion solution of different concen-trations varying from 0.005M to 0.100M in the temperature range of 32.0 ºC to 48.…
Run Fang, Yin Lin, Xian-Su Cheng
Synthesis of two lignin derivatives, lignophenol and lignin-aminophenol, were presented in this article. The chemical structure and the func-tional groups of lignin derivatives were charac-terized through FT-IR analysis. The immobiliza-tion of three proteases…
Shu-Hong Jiao, Robert Goutte
Recent research has considered DNA an inter-esting medium for long-term and ultra compact information storage and a stegomedium for hid-den messages. Artificial components of DNA with encoded information can be added to the genome of living organisms, such as…
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Natural Science is an international journal dedicated to the latest advancements in natural sciences. The goal of this journal is to provide a platform for scientists and academicians all over the world to promote, share, and discuss various new issues and developments in different areas of natural sciences. All manus… All articles are open access under a CC BY 4.0 licence, with authors retaining copyright.
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