Crystallization of molecular systems from solution: phase diagrams, supersaturation and other basic concepts

2014 ◽  
Vol 43 (7) ◽  
pp. 2286-2300 ◽  
Author(s):  
Gérard Coquerel
Keyword(s):  
Phase Diagrams ◽  
Solution Phase ◽  
Molecular Systems ◽  
Basic Concepts ◽  
And Control

Crystallization reactions are depicted using pathways in phase diagrams. This approach used is rational both in seeding and control of the process.

scholarly journals Thermochromic aggregation-induced dual phosphorescence via temperature-dependent sp3-linked donor-acceptor electronic coupling

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Tao Wang ◽  
Zhubin Hu ◽  
Xiancheng Nie ◽  
Linkun Huang ◽  
Miao Hui ◽  
...  
Keyword(s):  
Excited State ◽  
Room Temperature ◽  
Electronic Coupling ◽  
Temperature Dependent ◽  
Molecular Systems ◽  
Donor And Acceptor ◽  
Theoretical Investigations ◽  
Donor Acceptor ◽  
And Control ◽  
Two Temperature

AbstractAggregation-induced emission (AIE) has proven to be a viable strategy to achieve highly efficient room temperature phosphorescence (RTP) in bulk by restricting molecular motions. Here, we show that by utilizing triphenylamine (TPA) as an electronic donor that connects to an acceptor via an sp3 linker, six TPA-based AIE-active RTP luminophores were obtained. Distinct dual phosphorescence bands emitting from largely localized donor and acceptor triplet emitting states could be recorded at lowered temperatures; at room temperature, only a merged RTP band is present. Theoretical investigations reveal that the two temperature-dependent phosphorescence bands both originate from local/global minima from the lowest triplet excited state (T1). The reported molecular construct serves as an intermediary case between a fully conjugated donor-acceptor system and a donor/acceptor binary mix, which may provide important clues on the design and control of high-freedom molecular systems with complex excited-state dynamics.

Molecular Systems Biology and Control

2005 ◽  
Vol 11 (4-5) ◽  
pp. 396-435 ◽  
Author(s):  
Eduardo D. Sontag
Keyword(s):  
Systems Biology ◽  
Molecular Systems ◽  
And Control

Development of a Web-Based Educational Platform to Interact with Remote Mobile Robots

2011 ◽  
pp. 46-65
Author(s):  
Luis Payá ◽  
Oscar Reinoso ◽  
David Úbeda ◽  
Luis M. Jiménez ◽  
José M. Marín
Keyword(s):  
Computer Vision ◽  
Mobile Robots ◽  
Web Based ◽  
Engineering Studies ◽  
Remote Laboratories ◽  
Motivation Interaction ◽  
Basic Concepts ◽  
Basic Features ◽  
And Control ◽  
And Robotics

In this chapter the authors approach the problem that hand-on experiments may present in engineering studies and how Internet has become a powerful tool to improve the students’ motivation, interaction and degree of learning. Also, the authors address some challenges that must be taken into account in order to improve the effectiveness of the remote laboratories. They have implemented an interactive tool so that students can monitor and control the evolution of a team of mobile robots through Internet. This platform is designed for a subject whose contents are computer vision and robotics, and it allows students to learn and practice the basic concepts on those fields and their relationship. In this chapter they present the architecture and basic features of the platform and the experiences collected during the use of it.

scholarly journals Analysis and control of max-plus linear discrete-event systems: An introduction

2019 ◽  
Vol 30 (1) ◽  
pp. 25-54 ◽  
Author(s):  
Bart De Schutter ◽  
Ton van den Boom ◽  
Jia Xu ◽  
Samira S. Farahani
Keyword(s):  
Model Predictive Control ◽  
Linear Systems ◽  
Predictive Control ◽  
Discrete Event Systems ◽  
Discrete Event ◽  
Specific Class ◽  
Event Systems ◽  
Basic Concepts ◽  
And Control

AbstractThe objective of this paper is to provide a concise introduction to the max-plus algebra and to max-plus linear discrete-event systems. We present the basic concepts of the max-plus algebra and explain how it can be used to model a specific class of discrete-event systems with synchronization but no concurrency. Such systems are called max-plus linear discrete-event systems because they can be described by a model that is “linear” in the max-plus algebra. We discuss some key properties of the max-plus algebra and indicate how these properties can be used to analyze the behavior of max-plus linear discrete-event systems. Next, some control approaches for max-plus linear discrete-event systems, including residuation-based control and model predictive control, are presented briefly. Finally, we discuss some extensions of the max-plus algebra and of max-plus linear systems.

scholarly journals Enzyme-free nucleic acid dynamical systems

2017 ◽  
Author(s):  
Niranjan Srinivas ◽  
James Parkin ◽  
Georg Seelig ◽  
Erik Winfree ◽  
David Soloveichik
Keyword(s):  
Dynamical Systems ◽  
Programming Languages ◽  
Regulatory Networks ◽  
Molecular Mechanisms ◽  
Complex Dynamics ◽  
Molecular Systems ◽  
Synthetic Dna ◽  
Molecular Programming ◽  
And Control ◽  
Dna Components

Chemistries exhibiting complex dynamics—from inorganic oscillators to gene regulatory networks—have been long known but either cannot be reprogrammed at will, or rely on the sophisticated chemistry underlying the central dogma. Can simpler molecular mechanisms, designed from scratch, exhibit the same range of behaviors? Abstract coupled chemical reactions have been proposed as a programming language for complex dynamics, along with their systematic implementation using short synthetic DNA molecules. We developed this technology for dynamical systems, identifying critical design principles and codifying them into a compiler automating the design process. Using this approach, we built an oscillator containing only DNA components, establishing that Watson-Crick base pairing interactions alone suffice for arbitrarily complex dynamics. Our results argue that autonomous molecular systems that interact with and control their chemical environment can be designed via molecular programming languages.

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