Formulas for intrinsic noise evaluation in oscillatory genetic networks

In China, noise pollution from substations in urban areas is becoming more and more serious. An annoyance evaluation of the noise emitted by urban substations is presented. First, the subjective evaluation is conducted on the noise samples from urban substations via the semantic differential method. Subsequently, according to the typical characteristics of urban substation noise, 14 acoustical metrics are used to describe the noise samples for objective evaluation. Then the correlation analysis and regression analysis between the objective and subjective evaluation results are carried out. Finally, a regression model for urban substation noise evaluation is established. Practical application shows that the regression model can correctly predict the subjective annoyance of urban substation noise.

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Exponential sensitivity of noise-driven switching in genetic networks

Physical Biology ◽

10.1088/1478-3975/5/2/026005 ◽

2008 ◽

Vol 5 (2) ◽

pp. 026005 ◽

Cited By ~ 46

Author(s):

Pankaj Mehta ◽

Ranjan Mukhopadhyay ◽

Ned S Wingreen

Keyword(s):

Genetic Networks

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Optimization of a Shock Absorber Design Using Model-Based Approach

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.452-453.1351 ◽

2012 ◽

Vol 452-453 ◽

pp. 1351-1355 ◽

Cited By ~ 1

Author(s):

Grzegorz Wszołek ◽

Piotr Czop ◽

Dawid Jakubowski ◽

Damian Slawik

Keyword(s):

Automotive Industry ◽

Shock Absorber ◽

Flow Characteristic ◽

Optimization Method ◽

Design Parameters ◽

Coupled Models ◽

Model Based ◽

Noise Evaluation ◽

Optimal Values ◽

Application Scope

The aim of this paper is to demonstrate a possibility to optimize a shock absorber design to minimize level of vibrations with the use of model-based approach. The paper introduces a proposal of an optimization method that allows to choose the optimal values of the design parameters using a shock absorber model to minimize the level of vibrations. A model-based approach is considered to obtain the optimal pressure-flow characteristic by simulations conducted with the use of coupled models, including the damper and the servo-hydraulic tester model. The presence of the tester model is required due to high non-linear coupling of the tested object (damper) and the tester itself to be used for noise evaluation. This kind of evaluation is used in the automotive industry to investigate dampers, as an alternative to vehicle-level tests. The paper provides numerical experimental case studies to show application scope of the proposed method

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