A general method for sensitivity analysis of plane mechanism

Meccanica ◽  
1974 ◽  
Vol 9 (3) ◽  
pp. 214-221
Author(s):  
Aleramo Lucifredi
Keyword(s):  
Sensitivity Analysis ◽  
General Method

A new way to visualize and report structural and data uncertainty in stock assessments

2020 ◽  
Vol 77 (8) ◽  
pp. 1275-1280
Author(s):  
Jason Cope ◽  
Vladlena Gertseva
Keyword(s):  
Sensitivity Analysis ◽  
Alternative Model ◽  
Reference Model ◽  
Stock Assessment ◽  
Assessment Model ◽  
Data Uncertainty ◽  
Model Comparisons ◽  
Modelling Framework ◽  
Stock Assessments ◽  
General Method

We present a visual and tabular representation of fisheries stock assessment model outputs to rapidly examine and effectively communicate sensitivity analysis results from numerous alternative model comparisons. This approach uses multiple output metrics to identify which alternative stock assessment model configurations relative to the reference model deserve further attention when quantifying intermodel uncertainty. An accompanying table of likelihood components, parameters, and model-derived quantities highlights where major changes exist compared with the reference model. The general method is applicable to any stock assessment and should aid in model behavior diagnosis and communicating uncertainty to managers. Specific examples and code are provided for the Stock Synthesis modelling framework.

Minimum Sensitivity Design of Planar Kinematic Systems

1990 ◽  
Author(s):  
Umesh R. Patil ◽  
Prakash Krishnaswami
Keyword(s):  
Sensitivity Analysis ◽  
Nonlinear Programming ◽  
Function Method ◽  
Element Formulation ◽  
Penalty Function Method ◽  
Nonlinear Programming Problem ◽  
Kinematic System ◽  
Minimum Sensitivity ◽  
Robust System ◽  
General Method

Abstract In designing a kinematic system, it is desirable to ensure that the performance of the system is relatively insensitive to small changes in the nominal design, since this will result in a more robust system that can be manufactured economically with looser tolerances. A general method for minimizing the sensitivity of such systems is developed in this paper. The approach is based on the idea of converting the minimum sensitivity design problem into a nonlinear programming problem which is then solved using an exterior penalty function method. The constrained multi-element formulation is used for kinematic analysis and sensitivity analysis is performed using a direct differentation technique. The resulting algorithm is general enough to handle any planar kinematic system. The proposed method has been implemented in a computer program which has been tested on some sample problems. The results provide convincing proof of the power and feasibility of this method.

scholarly journals A general method for elicitation, imputation, and sensitivity analysis for incomplete repeated binary data

2020 ◽  
Vol 39 (22) ◽  
pp. 2921-2935
Author(s):  
Daniel Tompsett ◽  
Stephen Sutton ◽  
Shaun R. Seaman ◽  
Ian R. White
Keyword(s):  
Sensitivity Analysis ◽  
Binary Data ◽  
General Method

scholarly journals Information-theoretic sensitivity analysis: a general method for credit assignment in complex networks

2007 ◽  
Vol 5 (19) ◽  
pp. 223-235 ◽  
Author(s):  
Niklas Lüdtke ◽  
Stefano Panzeri ◽  
Martin Brown ◽  
David S Broomhead ◽  
Joshua Knowles ◽  
...  
Keyword(s):  
Sensitivity Analysis ◽  
Mutual Information ◽  
Complex Networks ◽  
Communication Channel ◽  
Credit Assignment ◽  
Major Question ◽  
Information Theoretic ◽  
Main Effect ◽  
General Method ◽  
Inputs And Outputs

Most systems can be represented as networks that couple a series of nodes to each other via one or more edges, with typically unknown equations governing their quantitative behaviour. A major question then pertains to the importance of each of the elements that act as system inputs in determining the output(s). We show that any such system can be treated as a ‘communication channel’ for which the associations between inputs and outputs can be quantified via a decomposition of their mutual information into different components characterizing the main effect of individual inputs and their interactions. Unlike variance-based approaches, our novel methodology can easily accommodate correlated inputs.

A General Method for Spectrometer Design in the Scoff Approximation

1976 ◽  
Vol 34 ◽  
pp. 538-539
Author(s):  
J. R. Fields
Keyword(s):  
Electron Microscope ◽  
Transmission Electron Microscope ◽  
Energy Analysis ◽  
Incident Beam ◽  
Scanning Transmission Electron Microscope ◽  
Chemical Identification ◽  
Scanning Transmission Electron ◽  
Transmission Electron ◽  
Scanning Transmission ◽  
General Method

The energy analysis of electrons scattered by a specimen in a scanning transmission electron microscope can improve contrast as well as aid in chemical identification. In so far as energy analysis is useful, one would like to be able to design a spectrometer which is tailored to his particular needs. In our own case, we require a spectrometer which will accept a parallel incident beam and which will focus the electrons in both the median and perpendicular planes. In addition, since we intend to follow the spectrometer by a detector array rather than a single energy selecting slit, we need as great a dispersion as possible. Therefore, we would like to follow our spectrometer by a magnifying lens. Consequently, the line along which electrons of varying energy are dispersed must be normal to the direction of the central ray at the spectrometer exit.

Phase behavior of cationic and anionic surfactants at low concentrations

1992 ◽  
Vol 50 (1) ◽  
pp. 694-695
Author(s):  
E. Naranjo
Keyword(s):  
Phase Behavior ◽  
Structural Characterization ◽  
Dynamic Systems ◽  
Anionic Surfactants ◽  
Intermolecular Forces ◽  
Stable Form ◽  
Surfactant Mixtures ◽  
Low Concentrations ◽  
Cationic And Anionic Surfactants ◽  
General Method

Equilibrium vesicles, those which are the stable form of aggregation and form spontaneously on mixing surfactant with water, have never been demonstrated in single component bilayers and only rarely in lipid or surfactant mixtures. Designing a simple and general method for producing spontaneous and stable vesicles depends on a better understanding of the thermodynamics of aggregation, the interplay of intermolecular forces in surfactants, and an efficient way of doing structural characterization in dynamic systems.

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