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Model-based Experimental Design in Electrochemistry
The following thesis applies an experimental design framework to investigate properties
of electron transfer kinetics and homogeneous catalytic reactions. The approach is
model-based and the classical Butler-Volmer description is chosen to describe the
fundamental electrochemical reaction at a conductive interface. The methodology
focuses on two significant design variables: the applied potential at the electrode and
mass transport mode induced by physical arrangement.
An important problem in electrochemistry is the recovery of model parameters from
output current measurements. In this work, the identifiability function is proposed
as a measure of correspondence between the parameters and output variable. Under
diffusion-limit conditions, plain Monte Carlo optimization shows that the function is
globally non-identifiable, or equivalently the correspondence is generally non-unique.
However by selecting linear voltammetry as the applied potential, the primary parameters in the Butler-Volmer description are theoretically recovered from a single set
of data. The result is accomplished via applications of Sobol ranking to reduce the
parameter set and a sensitivity equation to inverse these parameters.
The use of hydrodynamic tools for investigating electron transfer reactions is next
considered. The work initially focuses on the rotating disk and its generalization - the
rocking disk mechanism. A numerical framework is developed to analyze the latter,
most notably the derivation of a Levich-like expression for the limiting current. The
results are then used to compute corresponding identifiability functions for each of
the above configurations. Potential effectiveness of each device in recovering kinetic
parameters are straightforwardly evaluated by comparing the functional values. Furthermore, another hydrodynamic device - the rotating drum, which is highly suitable
for viscous and resistive solvents, is theoretically analyzed. Combined with previous
results, this rotating drum configuration shows promising potential as an alternative
tool to traditional electrode arrangement.
The final chapter illustrates the combination of modulated input signal and appro-
priate mass transport regimes to express electro-catalytic effects. An AC voltammetry
technique plays an important role in this approach and is discussed step-by-step from
simple redox reaction to the complete EC′ catalytic mechanism. A general algorithm
based on forward and inverse Fourier transform functions for extracting harmonic
currents from the total current is presented. The catalytic effect is evaluated and
compared for three cases: macro, micro electrodes under diffusion control condition
and in micro fluidic environments. Experimental data are also included to support
the simulated design results
Physics of Ionic Conduction in Narrow Biological and Artificial Channels
The book reprints a set of important scientific papers applying physics and mathematics to address the problem of selective ionic conduction in narrow water-filled channels and pores. It is a long-standing problem, and an extremely important one. Life in all its forms depends on ion channels and, furthermore, the technological applications of artificial ion channels are already widespread and growing rapidly. They include desalination, DNA sequencing, energy harvesting, molecular sensors, fuel cells, batteries, personalised medicine, and drug design. Further applications are to be anticipated.The book will be helpful to researchers and technologists already working in the area, or planning to enter it. It gives detailed descriptions of a diversity of modern approaches, and shows how they can be particularly effective and mutually reinforcing when used together. It not only provides a snapshot of current cutting-edge scientific activity in the area, but also offers indications of how the subject is likely to evolve in the future
Corrosion and Degradation of Materials
Studies on the corrosion and degradation of materials play a decisive role in the novel design and development of corrosion-resistant materials, the selection of materials used in harsh environments in designed lifespans, the invention of corrosion control methods and procedures (e.g., coatings, inhibitors), and the safety assessment and prediction of materials (i.e., modelling). These studies cover a wide range of research fields, including the calculation of thermodynamics, the characterization of microstructures, the investigation of mechanical and corrosion properties, the creation of corrosion coatings or inhibitors, and the establishment of corrosion modelling. This Special Issue is devoted to these types of studies, which facilitate the understanding of the corrosion fundamentals of materials in service, the development of corrosion coatings or methods, improving their durability, and eventually decreasing corrosion loss
ESSE 2017. Proceedings of the International Conference on Environmental Science and Sustainable Energy
Environmental science is an interdisciplinary academic field that integrates physical-, biological-, and information sciences to study and solve environmental problems. ESSE - The International Conference on Environmental Science and Sustainable Energy provides a platform for experts, professionals, and researchers to share updated information and stimulate the communication with each other. In 2017 it was held in Suzhou, China June 23-25, 2017
Microscopy and Analysis
Microscopes represent tools of the utmost importance for a wide range of disciplines. Without them, it would have been impossible to stand where we stand today in terms of understanding the structure and functions of organelles and cells, tissue composition and metabolism, or the causes behind various pathologies and their progression. Our knowledge on basic and advanced materials is also intimately intertwined to the realm of microscopy, and progress in key fields of micro- and nanotechnologies critically depends on high-resolution imaging systems. This volume includes a series of chapters that address highly significant scientific subjects from diverse areas of microscopy and analysis. Authoritative voices in their fields present in this volume their work or review recent trends, concepts, and applications, in a manner that is accessible to a broad readership audience from both within and outside their specialist area
Engineering Dynamics and Life Sciences
From Preface:
This is the fourteenth time when the conference “Dynamical Systems: Theory
and Applications” gathers a numerous group of outstanding scientists and engineers, who
deal with widely understood problems of theoretical and applied dynamics.
Organization of the conference would not have been possible without a great effort of
the staff of the Department of Automation, Biomechanics and Mechatronics. The patronage
over the conference has been taken by the Committee of Mechanics of the Polish Academy
of Sciences and Ministry of Science and Higher Education of Poland.
It is a great pleasure that our invitation has been accepted by recording in the history
of our conference number of people, including good colleagues and friends as well as a large
group of researchers and scientists, who decided to participate in the conference for the
first time. With proud and satisfaction we welcomed over 180 persons from 31 countries all
over the world. They decided to share the results of their research and many years
experiences in a discipline of dynamical systems by submitting many very interesting
papers.
This year, the DSTA Conference Proceedings were split into three volumes entitled
“Dynamical Systems” with respective subtitles: Vibration, Control and Stability of Dynamical
Systems; Mathematical and Numerical Aspects of Dynamical System Analysis and
Engineering Dynamics and Life Sciences. Additionally, there will be also published two
volumes of Springer Proceedings in Mathematics and Statistics entitled “Dynamical Systems
in Theoretical Perspective” and “Dynamical Systems in Applications”
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