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81.
82.
Arthur T. Gill 《History of Photography》2013,37(2):173-174
Abstract ‘The good is oft interred with their bones.’ Much of what has been written of William Henry Fox Talbot has done him meagre justice: criticism for patenting his inventions, accusations that he patented the ideas of others, denigration of the importance of his discoveries. Though acknowledged as a scientist, his place as an artistic worker in the medium he invented has not been appreciated. 相似文献
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This paper describes the construction of a decision system to be used by judges who is about to pass sentence in murder cases. Classification models of murder cases based on fuzzy neural network with random weights and fuzzy neural network with Genetic Algorithm based weights are designed. A simulation program in C++ has been deliberated and developed for analyzing the consequences. Results show that the fuzzy neural networks increase the rate of convergence in comparison with conventional neural networks with backpropagation algorithm. That the fuzzy neural networks for classification of murder cases using Trapezoidal Membership Function outperform Lagrange Interpolation and Gaussian Membership Function is also reported. Comparative studies are carried out for a number of networks and configurations. 相似文献
86.
Mohammadreza Kosari Uzma Anjum Shibo Xi Alvin M. H. Lim Abdul Majeed Seayad Emmanuel A. J. Raj Sergey M. Kozlov Armando Borgna Hua Chun Zeng 《Advanced functional materials》2021,31(47):2102896
Beyond the catalytic activity of nanocatalysts, the support with architectural design and explicit boundary could also promote the overall performance through improving the diffusion process, highlighting additional support for the morphology-dependent activity. To delineate this, herein, a novel mazelike-reactor framework, namely multi-voids mesoporous silica sphere (MVmSiO2), is carved through a top-down approach by endowing core-shell porosity premade Stöber SiO2 spheres. The precisely-engineered MVmSiO2 with peripheral one-dimensional pores in the shell and interconnecting compartmented voids in the core region is simulated to prove combined hierarchical and structural superiority over its analogous counterparts. Supported with CuZn-based alloys, mazelike MVmSiO2 nanoreactor experimentally demonstrated its expected workability in model gas-phase CO2 hydrogenation reaction where enhanced CO2 activity, good methanol yield, and more importantly, a prolonged stable performance are realized. While tuning the nanoreactor composition besides morphology optimization could further increase the catalytic performance, it is accentuated that the morphological architecture of support further boosts the reaction performance apart from comprehensive compositional optimization. In addition to the found morphological restraints and size-confinement effects imposed by MVmSiO2, active sites of catalysts are also investigated by exploring the size difference of the confined CuZn alloy nanoparticles in CO2 hydrogenation employing both in-situ experimental characterizations and density functional theory calculations. 相似文献
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E. Ashlyn Kirupa A. Moses Ezhil Raj C. Ravidhas 《Journal of Materials Science: Materials in Electronics》2016,27(9):8991-8995
Copper aluminium oxide (CuAlO2) of well ordered crystalline films were deposited on to glass substrates with Cu/Al ratio r = 0.8 at the substrate temperatures of 250, 300, 350, 400 and 450 °C. Films which were characterized had a thickness of the order of few micrometers. Films deposited at the optimized deposition temperature (450 °C) revealed well-crystalline CuAlO2 phase with XRD peak at 2θ = 31.7° corresponds to (006) reflection. The peak positions of the core level XPS spectra, confirm the presence of delafossite CuAlO2 phase. The optical transmission of 80 % has been observed in the visible spectrum. The obtained band gap energy is 4.1 eV. From the observed results it was evidenced that the substrate temperature has strong influence on the structural and optical properties of the spray pyrolysed copper aluminium oxide films. 相似文献
89.
Joel. L. Plawsky William N. Gill Ravi S. Achanta 《Journal of Materials Science: Materials in Electronics》2012,23(1):48-55
Copper solubility in low-k dielectrics has been shown to be a major factor in decreasing the useful lifetime of an interconnect.
A number of groups have shown experimentally that increased surface oxygen concentration, increased moisture content in the
dielectric, and an increase in interfacial copper concentration from chemical–mechanical polishing all contribute to accelerated
failure. Here, we assumed that all these processes led to an increase in the solubility of metal at the SiO2/metal. We systematically varied the value of the interfacial solubility, Ce over a wide range and showed that the solubility strongly affects the distribution of copper and the local electric field
within the dielectric. This changes the mechanism by which failure occurs from one where copper must penetrate all the way
through the dielectric to one where copper penetration is limited to a thin layer near the surface. The solubility levels
required to alter the failure mechanism, 1026–1027 atoms/m3, are within the realm of possibility and have been reported in the context of fabricating Cu-SiO2 resistive switching elements for memory applications. 相似文献
90.
Vanitha Gnanasoundran Edwin Fernando M Senthil Kumar Raj Kumar Thiruma Valavan Chandra Mohan Noor Mohammed Srinivasa Prasad 《Hemodialysis international. International Symposium on Home Hemodialysis》2014,18(4):835-838
Chryseobacterium meningosepticum is an uncommon human pathogen, which is an inhabitant of soil and water. It should be included in the list of suspected nosocomial infections, especially in patients with immunocompromised status. C. meningosepticum infections are not common but are clinically important because the organism is naturally resistant to multiple antibiotics. We report a case where the bacterium was isolated from the pleural fluid from a chronic kidney disease patient on hemodialysis, who developed pneumonia with complicated parapneumonic effusion. To the best of our knowedge, this is the first case where C. meningosepticum is isolated from the pleural effusion, from India. 相似文献