Results 211 to 220 of about 207,726 (268)
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Convergence analysis for an element-by-element finite element method
Computer Methods in Applied Mechanics and Engineering, 1995zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Li, Zhi Ping, Reed, M. B.
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The Chemical Educator, 2015
A laboratory exercise is described that involves the synthesis of acetylferrocene, analysis of its 1H NMR spectra, and of its C and H composition by elemental analysis (EA). The use of both NMR and EA demonstrates to the students the value of using elemental analysis to evaluate the full purity of a sample in comparison to NMR that assesses purity by ...
Ana Belén Ruiz Muelle +2 more
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A laboratory exercise is described that involves the synthesis of acetylferrocene, analysis of its 1H NMR spectra, and of its C and H composition by elemental analysis (EA). The use of both NMR and EA demonstrates to the students the value of using elemental analysis to evaluate the full purity of a sample in comparison to NMR that assesses purity by ...
Ana Belén Ruiz Muelle +2 more
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An Algorithm for Threshold Element Analysis
IEEE Transactions on Electronic Computers, 1965A majority or threshold element is a device with a finite number of inputs and a single output. The output, F n is a Boolean function of the n binary valued variables (x 1 , x 2 , ..., x n ) applied to the inputs. The analysis of a threshold element is the determination of the output Boolean function, F n when the input variables and their ...
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Elements of functional analysis
1976Let L be a linear space over a topological field K. Suppose that: 1. L is a topological group under addition; 2. the mapping \( K \times L \to L:\left( {\lambda ,x} \right) \to \lambda x \) is continuous in both variables.
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Finite-element analysis on a PC
IEEE Software, 1991The authors describe how they achieved mainframe performance by coding the Cosmos/M finite-element analysis system, a commercial product, for a PC enhanced with a parallel-processing board. The discussion covers design goals, algorithm design, implementation and debugging, performance optimization, and scalability. They focus on financial, algorithmic,
Jon Flower +3 more
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C2-CONTINUOUS ELEMENTS FOR BOUNDARY ELEMENT ANALYSIS
International Journal for Numerical Methods in Engineering, 1997A new kind of \(C^2\)-continuous elements is derived by linear blending of two consecutive second-order Overhauser elements, with the latter one being the quadratic blending of three quartic \(C^0\)-continuous elements. The numerical implementation by these new elements is given for the boundary integral equations employed in solution of boundary value
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Finite element analysis of machine elements
Engineering Computations, 1999This paper gives a review of the finite element techniques (FE) applied in the analysis and design of machine elements; bolts and screws, belts and chains, springs and dampers, brakes, gears, bearings, gaskets and seals are handled. The range of applications of finite elements on these subjects is extremely wide and cannot be presented in a single ...
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An analysis of some element-by-element techniques
Computer Methods in Applied Mechanics and Engineering, 1989The paper provides an analysis of some EBE preconditioners \(P_{EBE}\) originally introduced by \textit{T. J. R. Hughes}, \textit{I. Levit} and \textit{J. Winger} [ibid. 36, 241-354 (1983; Zbl 0487.73083)]. The EBE preconditioning effects are compared with those obtained by diagonal scaling.
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Analysis of food for toxic elements
Analytical and Bioanalytical Chemistry, 2007The levels of the toxic elements Al, As, Cd, Hg, Pb and Sn are routinely monitored in food to protect the consumer. Increasingly, the chemical forms of As and Hg are also monitored. Analyses are performed to enforce regulatory standards and to accumulate background levels for assessing long-term exposure.
Stephen G, Capar +2 more
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Statistical finite element analysis
2008 30th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2008A novel technique is introduced for tissue deformation and stress analysis. Compared to the conventional Finite Element method, this technique is orders of magnitude faster and yet still very accurate. The proposed technique uses preprocessed data obtained from FE analyses of a number of similar objects in a Statistical Shape Model framework as ...
Iman, Khalaji +2 more
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