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排序方式: 共有424条查询结果,搜索用时 15 毫秒
81.
I. Aruna B.R. Mehta L.K. Malhotra S.M. Shivaprasad 《Advanced functional materials》2005,15(1):131-137
Gadolinium nanoparticles, deposited via an inert gas evaporation method, show improved stability towards oxidation and it is therefore possible to carry out an ex‐situ investigation on “bare” Gd nanoparticles, i.e., in the absence of a protective Pd layer, for the first time. A size‐induced structural transformation from hexagonal close packing to the higher‐symmetry face‐centered cubic structure is observed. The important observation of hydrogen–Gd‐nanoparticle interaction at room temperature and atmospheric pressure, without a Pd catalytic layer, makes Gd nanoparticles a potential candidate for hydrogen‐sensing, switching, and storage applications. 相似文献
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83.
AbstractThe physicochemical properties of metal oxide nanoparticles can be significantly improved by doping. MgO and Zn2+ doped MgO (Zn:MgO) offers potential applications in photonic devices falling in the UV and visible region. In the present paper, sol gel method was employed to synthesize pure and Zn2+ doped MgO nanoparticles. XRD pattern inferred the crystalline nature of material and also the slight change in peak due to the dopant. FESEM showed the formation of nanoparticles with almost same shapes and dimensions with little agglomeration. Optical properties were studied by using UV-Vis and PL techniques. Doping of Zn2+ in MgO nanoparticles was verified by EDS. 相似文献
84.
85.
Agrawal Suchitra Tiwari Aruna Naik Prathamesh Srivastava Arjun 《Applied Intelligence》2021,51(11):7625-7646
Applied Intelligence - The main aim of multimodal optimization problems (MMOPs) is to find and deal with multiple optimal solutions using an objective function. MMOPs perform the exploration and... 相似文献
86.
Journal of Computer Virology and Hacking Techniques - Scrapers are automated programs that mechanically traverse the website and steal the data from websites. According to numerous web traffic... 相似文献
87.
Pandey Bishwajeet Pandey Nisha Kaur Amanpreet Akbar Hussain D. M. Das Bhagwan Tomar Geetam S. 《Wireless Personal Communications》2019,106(4):1813-1826
Wireless Personal Communications - FIR Filter always remains in linear phase with the help of symmetric coefficient. This feature makes it ideal for phase-sensitive applications like data... 相似文献
88.
Muthu Vignesh Vellayappan Arunpandian Balaji Aruna Priyadarshini Subramanian Agnes Aruna John Saravana Kumar Jaganathan Selvakumar Murugesan Hemanth Mohandas Eko Supriyanto Mustafa Yusof 《Science and Technology of Advanced Materials》2015,16(3)
Cardiovascular disease claims millions of lives every year throughout the world. Biomaterials are used widely for the treatment of this fatal disease. With the advent of nanotechnology, the use of nanocomposites has become almost inevitable in the field of biomaterials. The versatile properties of nanocomposites, such as improved durability and biocompatibility, make them an ideal choice for various biomedical applications. Among the various nanocomposites, polyhedral oligomeric silsesquioxane-poly(carbonate-urea)urethane, bacterial cellulose with polyvinyl alcohol, carbon nanotubes, graphene oxide and nano-hydroxyapatite nanocomposites have gained popularity as putative choices for biomaterials in cardiovascular applications owing to their superior properties. In this review, various studies performed utilizing these nanocomposites for improving the mechanical strength, anti-calcification potential and hemocompatibility of heart valves are reviewed and summarized. The primary motive of this work is to shed light on the emerging nanocomposites for heart valve applications. Furthermore, we aim to promote the prospects of these nanocomposites in the campaign against cardiovascular diseases. 相似文献
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90.
Ramya Iyer S.K. Tomar T. Uma Maheswari Rameshwar Singh 《International Dairy Journal》2010,20(3):133-141
Streptococcus thermophilus has “Generally Recognized as Safe” status and is extensively used for the manufacture of several important fermented dairy foods, including yoghurt and some cheese varieties (Swiss, Limburger, Brick). S. thermophilus also has a number of functional activities such as production of extracellular polysaccharides, bacteriocins and vitamins. In addition, it also has potential as a probiotic, as demonstrated by various health effects, transient survival, and moderate adherence in the gastrointestinal tract. Therefore, the natural diversity among S. thermophilus strains with respect to their capacity to produce different metabolites has the potential to be exploited beyond fermentation for lactic acid production. 相似文献