EXPRESS ANALYSIS OF TRIETHOXYSILANE AND TETRAETHOXYSILANE USING THE RAMAN SPECTROSCOPY METHOD FOR OPTIMIZATION OF THE TECHNOLOGICAL PROCESS OF MONOSILANE SYNTHESIS

A technique for the express analysis of the products of technological processes is described, which was developed using the Raman spectroscopy method. The analysis of the Raman spectra includes the interpretation of the spectral bands, taking into account the values of the characteristic frequencies of the vibrational spectra of organic compounds, as well as the determination of the integral intensities of the corresponding spectral ranges. By example of the real time control procedure for the technological process of monosilane synthesis, the express analysis of tetraethoxysilane, which is a by-product of this technological process, is carried out. Significant advantages of using the express analysis method are demonstrated, which provide control over the normal course of the technological process and obtaining results that allow making adjustments to the process flow diagram in order to optimize it.

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Real-Time Public Transport Operations: Library of Control Strategies

Transportation Research Record Journal of the Transportation Research Board ◽

10.3141/2647-04 ◽

2017 ◽

Vol 2647 (1) ◽

pp. 26-32 ◽

Cited By ~ 4

Author(s):

Mahmood Mahmoodi Nesheli ◽

Avishai (Avi) Ceder

Keyword(s):

Real Time ◽

Public Transport ◽

Large Scale ◽

Real Life ◽

Small Scale ◽

Control Procedure ◽

Service Reliability ◽

Real Time Control ◽

Time Control ◽

Control Actions

Modern public transport (PT) operations have evolved into a complex multimodal system in which small-scale disorder can propagate. Large-scale disruptions to passengers and PT agencies result. Various studies have been developed to model PT control at the operational level; however, the main downside of possible real-time control actions is the lack of intelligent modeling and a systematic process that can activate such actions immediately. This study presents a real-time control procedure to increase service reliability and to improve successful coordinated transfers in a complex PT system. The developed method aims at minimizing total travel time for passengers and reducing the uncertainty of meetings between PT vehicles. A library of operational tactics is first built to serve as a basis of the real-time decision-making process. The methodology developed is applied to a real-life case study in Auckland, New Zealand. The results showed improvements in system performance and confirmed the use of real-time control actions to maintain reliable PT service.

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Modelling and Control of Mechatronics Lines Served by Complex Autonomous Systems

Sensors ◽

10.3390/s19153266 ◽

2019 ◽

Vol 19 (15) ◽

pp. 3266 ◽

Cited By ~ 3

Author(s):

Dragomir ◽

Mincă ◽

Dragomir ◽

Filipescu

Keyword(s):

Petri Nets ◽

Real Time ◽

Autonomous Systems ◽

The Other ◽

Added Value ◽

Control Procedure ◽

Real Time Control ◽

Planning And Scheduling ◽

Time Control ◽

Wide Range

The aim of this paper is to reverse an assembly line, to be able to perform disassembly, using two complex autonomous systems (CASs). The disassembly is functioning only in case of quality default identified in the final product. The CASs are wheeled mobile robots (WMRs) equipped with robotic manipulators (RMs), working in parallel or collaboratively. The reversible assembly/disassembly mechatronics line (A/DML) assisted by CASs has a specific typology and is modelled by specialized hybrid instruments belonging to the Petri nets class, precisely synchronized hybrid Petri nets (SHPN). The need of this type of models is justified by the necessity of collaboration between the A/DML and CASs, both having characteristics and physical constraints that should be considered and to make all systems compatible. Firstly, the paper proposes the planning and scheduling of tasks necessary in modelling stage as well as in real time control. Secondly, two different approaches are proposed, related to CASs collaboration: a parallel approach with two CASs have simultaneous actions: one is equipped with robotic manipulator, used for manipulation, and the other is used for transporting. This approach is correlated with industrial A/D manufacturing lines where have to transport and handle weights in a wide range of variation. The other is a collaborative approach, A/DML is served by two CASs used for manipulation and transporting, both having simultaneous movements, following their own trajectories. One will assist the disassembly in even, while the other in odd workstations. The added value of this second approach consists in the optimization of a complete disassembly cycle. Thirdly, it is proposed in the paper the real time control of mechatronics line served by CASs working in parallel, based on the SHPN model. The novelty of the control procedure consists in the use of the synchronization signals, in absence of the visual servoing systems, for a precise positioning of the CASs serving the reversible mechatronics line.

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Real-time control of microreactors by Raman spectroscopy

10.1117/12.682536 ◽

2006 ◽

Author(s):

Chetan Shende ◽

Paul Maksymiuk ◽

Frank Inscore ◽

Stuart Farquharson

Keyword(s):

Raman Spectroscopy ◽

Real Time ◽

Real Time Control ◽

Time Control

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A ROS-Based Energy Management System for a Prototype Fuel Cell Hybrid Vehicle

Energies ◽

10.3390/en14071964 ◽

2021 ◽

Vol 14 (7) ◽

pp. 1964

Author(s):

Savvas Piperidis ◽

Iason Chrysomallis ◽

Stavros Georgakopoulos ◽

Nikolaos Ghionis ◽

Lefteris Doitsidis ◽

...

Keyword(s):

Operating System ◽

Energy Management ◽

Internal Combustion Engines ◽

Control Procedure ◽

Combustion Engines ◽

Real Time Control ◽

Energy Management Systems ◽

Time Control ◽

Fuel Cell Hybrid Vehicle ◽

Message System

The automotive industry has been rapidly transforming and moving further from internal combustion engines, towards hybrid or electric vehicles. A key component for the successful adoption of the aforementioned approach is their Energy Management Systems (EMSs). In the proposed work, we describe in detail a custom EMS, with unique characteristics, which was developed and installed in a hydrogen-powered prototype vehicle. The development of the EMS was based on off-the-shelf components and the adoption of a Robot Operating System (ROS), a meta-operating system developed for robotic-oriented applications. Our approach offers soft real-time control and the ability to organize the controller of the EMS as a straightforward and comprehensive message system that provides the necessary inter-process communication at the core of the EMS control procedure. We describe in detail the software-based implementation and validate our approach through experimental results obtained while the prototype was racing in a low-energy consumption competition.

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A Real Time Control Architecture for Continuously Managing Patients in a Care Unit

Methods of Information in Medicine ◽

10.1055/s-0038-1634619 ◽

1995 ◽

Vol 34 (05) ◽

pp. 475-488

Author(s):

B. Seroussi ◽

J. F. Boisvieux ◽

V. Morice

Keyword(s):

Real Time ◽

Linear Time ◽

Treatment Plan ◽

Control Architecture ◽

Real Time Control ◽

Time Representation ◽

Time Control ◽

Continuous Support ◽

Definition Of ◽

Computerized System

Abstract:The monitoring and treatment of patients in a care unit is a complex task in which even the most experienced clinicians can make errors. A hemato-oncology department in which patients undergo chemotherapy asked for a computerized system able to provide intelligent and continuous support in this task. One issue in building such a system is the definition of a control architecture able to manage, in real time, a treatment plan containing prescriptions and protocols in which temporal constraints are expressed in various ways, that is, which supervises the treatment, including controlling the timely execution of prescriptions and suggesting modifications to the plan according to the patient’s evolving condition. The system to solve these issues, called SEPIA, has to manage the dynamic, processes involved in patient care. Its role is to generate, in real time, commands for the patient’s care (execution of tests, administration of drugs) from a plan, and to monitor the patient’s state so that it may propose actions updating the plan. The necessity of an explicit time representation is shown. We propose using a linear time structure towards the past, with precise and absolute dates, open towards the future, and with imprecise and relative dates. Temporal relative scales are introduced to facilitate knowledge representation and access.

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