scholarly journals Control strategies and design guidelines for planar latch-less metamorphic robots based on analysis of dynamics

2007 ◽  
Author(s):  
Ashish Deshpande ◽  
Siddhartha S. Srinivasa ◽  
Padmanabhan Pillai
Keyword(s):  
Control Strategies ◽  
Design Guidelines ◽  
Metamorphic Robots ◽  
Analysis Of Dynamics

scholarly journals Application of State-of-the-Art Power Plant (SOAPP) Workstation for Combustion Turbine Emissions Control

1993 ◽  
Author(s):  
Philip A. Perry ◽  
James A. Van Laar ◽  
George Touchton ◽  
Stanley E. Pace
Keyword(s):  
Power Plant ◽  
Power Plants ◽  
State Of The Art ◽  
Control Strategies ◽  
Emission Control ◽  
Design Guidelines ◽  
Design And Technology ◽  
Development Effort ◽  
Advanced Technologies ◽  
Software Modules

The Electric Power Research Institute (EPRI) has been conducting a broad research and development effort over the last ten years to provide better designs and materials for fossil fuel power plants. To facilitate transferring this advanced design and technology knowledge to the power industry for the next generation of power plants, EPRI and Sargent & Lundy (S&L) are creating the State-of-the-Art Power Plant (SOAPP) Workstation. The SOAPP Workstation will be available to the industry as a powerful tool that can be used to screen advanced technologies for appropriateness to specific sites; obtain design guidelines for advanced technologies; and generate site-specific conceptual designs, including conceptual design drawings, heat balances, cost estimates, and schedules. The technology transfer components of this project are a series of individual software modules that will be integrated into the SOAPP Workstation. This paper discusses two software modules that have recently been developed for combustion turbine power plant emission control. The Combustion Turbine Nitrogen Oxides (NOx) Combustor Control Strategies technology module presents state-of-the-art technologies that are commercially available to reduce NOx emissions during combustion, including water injection, steam injection, and dry low NOx combustors. The second technology module, Combustion Turbine Postcombustion NOx/CO Control Strategies, examines selective catalytic reduction (SCR) and carbon monoxide (CO) oxidation technologies for reducing postcombustion NOx and CO emissions. These two technology modules, operating within the SOAPP Workstation, will allow appropriate decisions to be made concerning combustion turbine emission control.

Model-Based Control and Stability Analysis of Underactuated Autonomous Underwater Vehicles Via Singular Perturbations

2020 ◽  
Vol 15 (6) ◽  
Author(s):  
Ming Lei ◽  
Ye Li
Keyword(s):  
Stability Analysis ◽  
Time Scale ◽  
Control Strategies ◽  
Autonomous Underwater Vehicles ◽  
Path Following ◽  
Underwater Vehicles ◽  
Time Scale Separation ◽  
Independent Analysis ◽  
Effective Performance ◽  
Analysis Of Dynamics

Abstract This paper presents the control design and stability analysis for path-following of underactuated autonomous underwater vehicles (AUVs), with dynamics restricted to the horizontal plane. As illustration, the time-scale separation caused by different rates of numerous variables is exploited via a singular perturbation model formulation. On the basis of that, a time-scale decomposition method is used to decompose the full system into three-time scale subsystems. The three-time scale structure allows independent analysis of dynamics in each time scale. Therefore, control strategies are designed in each subsystem separately, leading to a reduction of control complexity and a relatively simple control law. This paper also demonstrates the asymptotic stability of the closed-loop system with a composite Lyapunov function candidate and provides alternative, simple but generic mathematical bounds on the singularly perturbed parameters. Finally, the simulation results are presented to illustrate the effective performance of proposed controller.

The impact of microbiological tools on mathematical modelling of biological wastewater treatment

1997 ◽  
Vol 36 (10) ◽  
pp. 97-108
Author(s):  
P. C. Pollard ◽  
E. v. Münch ◽  
P. A. Lant ◽  
P. F. Greenfield
Keyword(s):  
Wastewater Treatment ◽  
Mathematical Modelling ◽  
Waste Treatment ◽  
Control Strategies ◽  
Cost Effective ◽  
Design Guidelines ◽  
Biological Behaviour ◽  
Cost Effective Treatment ◽  
The Impact ◽  
Biological Waste Treatment

Biological systems are being used to treat an increasing range of complex wastes; domestic and industrial wastewaters containing nutrients and refractory organic compounds, soil sites and groundwater contaminated by organics, and organic solid residues. These treatment processes rely on micro-organisms and, more than ever before, must deliver higher quality outcomes at higher levels of reliability to protect the environment. At the same time, pressures to deliver cost-effective treatment have increased. The challenge for these biological treatment technologies and the associated engineering is to achieve the environmental and economic goals simultaneously. Mathematical modelling is an essential component in developing a detailed understanding of such processes, as well as design guidelines and suitable operating and control strategies. This paper provides a brief summary of the development of mathematical models for biological waste treatment systems, why they have become increasingly complex and how certain microbiological tools can provide the experimental means to validate more complex segregated and structured models of biological behaviour. With a number of specific modelling examples in the field of wastewater treatment, we illustrate the potential of these modern microbiological tools and their implications for gaining an improved understanding of biological waste treatment.

Adolescents' Use of Resource Control Strategies and Bullying Behaviors

2017 ◽  
Author(s):  
Kelly N. Clark ◽  
Nicole B. Dorio ◽  
Michelle K. Demaray ◽  
Christine K. Malecki
Keyword(s):  
Control Strategies ◽  
Resource Control ◽  
Bullying Behaviors

Can trust become a factor of economic growth? Dynamic changes in the level of trust of Russian youth

2020 ◽  
pp. 92-107 ◽  
Author(s):  
A. I. Bakhtigaraeva ◽  
A. A. Stavinskaya
Keyword(s):  
Institutional Environment ◽  
Negative Effects ◽  
Dynamic Changes ◽  
Generalized Trust ◽  
Level Of Education ◽  
Advantages And Disadvantages ◽  
The Future ◽  
Analysis Of Dynamics

The article considers the role of trust in the economy, the mechanisms of its accumulation and the possibility of using it as one of the growth factors in the future. The advantages and disadvantages of measuring the level of generalized trust using two alternative questions — about trusting people in general and trusting strangers — are analyzed. The results of the analysis of dynamics of the level of generalized trust among Russian youth, obtained within the study of the Institute for National Projects in 10 regions of Russia, are presented. It is shown that there are no significant changes in trust in people in general during the study at university. At the same time, the level of trust in strangers falls, which can negatively affect the level of trust in the country as a whole, and as a result have negative effects on the development of the economy in the future. Possible causes of the observed trends and the role of universities are discussed. Also the question about the connection between the level of education and generalized trust in countries with different quality of the institutional environment is raised.

Sign in / Sign up

Export Citation Format

Share Document