Relevant bibliographies by topics / Pneumatic control Computer simulation

Academic literature on the topic 'Pneumatic control Computer simulation'

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Published: 10 December 2022
Last updated: 29 January 2023

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Journal articles on the topic "Pneumatic control Computer simulation"

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Vujičić, Vojislav, Snežana Dragićević, Milan Marjanović, Dragana Ocokoljić, Marko Popović, and Ivan Milićević. "Laboratory electro-pneumatic motion control setup." IMK-14 - Istrazivanje i razvoj 26, no. 3 (2020): 75–80. http://dx.doi.org/10.5937/imk2003075v.

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Studying the dynamic behaviour of objects or systems in response to conditions cannot always be easily or safely applied in real life. Computer simulations in engineering are very important as it solves real-world problems safely and efficiently. It provides an important method of analysis which is easily verified, communicated, and understood. Across industries and disciplines, simulation modelling provides valuable solutions by giving clear insights into complex systems. A system presented in this paper is a pneumatic sheet metal bending laboratory setup. An electro-pneumatic motion control of this system is modelled and simulated in FluidSim software. This system is also physically built using main pneumatic and electrical components with PLC. Described laboratory setup in this paper was used in the education of students and significant enchantment in the understanding of how similar systems work was noticed.
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Кabyshev, A. M., V. V. Khmara, and M. P. Maslakov. "Development and computer based simulation of pneumatic conveying control system." IOP Conference Series: Earth and Environmental Science 194 (November 15, 2018): 022049. http://dx.doi.org/10.1088/1755-1315/194/2/022049.

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Akagi, Tetsuya, Shujiro Dohta, and Hisashi Matsushita. "Analysis of an Opto-Pneumatic Control System and Improvement of its Control Performance." Journal of Robotics and Mechatronics 11, no. 4 (August 20, 1999): 251–57. http://dx.doi.org/10.20965/jrm.1999.p0251.

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This paper describes an analysis of an opto-pneumatic control system and an improvement of control performance of the system. The opto-pneumatic system consists of an optical servo valve, a pneumatic cylinder and a cart. First, we built an analytical model of the system considering a nonlinear friction where exists in sliding parts. And we confirmed the validity of the proposed model by comparing theoretical results with experimental results of the characteristics of optical servo valve and cart position control. Then, we applied a sliding mode control scheme compensating a steady-state disturbance to multi- position control and follow-up control of a cart. By computer simulation, we confirmed that the control performance of opto-pneumatic control system was improved by using this control scheme.
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Tang, J., and G. Walker. "Variable Structure Control of a Pneumatic Actuator." Journal of Dynamic Systems, Measurement, and Control 117, no. 1 (March 1, 1995): 88–92. http://dx.doi.org/10.1115/1.2798526.

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In an effort to overcome the nonlinerities associated with a pneumatic system the variable structure control (VSC) technique has been employed to control the position of a pneumatic actuator. To accomplish this a model of a pneumatic actuator was developed to allow the control systems to be studied via simulations. The results from the simulations indicated that the VSC technique can position the actuator rapidly, via first-order trajectory, in response to a step input. An experimental study of the VSC control system was then performed. These experiments verified the simulation work, and demonstrated that inherent system delays and the quantisation of the control signals can cause and uncontrollable oscillatory behaviour; stability limits were established for three of the system parameters. It was also found, that the actuator could be placed within ±5 mm of the desired position.
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PARKHOMENKO, S. G., and G. G. PARKHOMENKO. "SIMULATION OF AUTOMATIC CONTROL SYSTEMS OF TILLAGE UNITS." Traktory i sel hozmashiny 84, no. 1 (January 15, 2017): 22–31. http://dx.doi.org/10.17816/0321-4443-66258.

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The studies were performed to improve workflow of hydraulic automatic control systems of the tillage units. Tillage quality should not deteriorate. Working bodies of tillage machines have to be moved automatically. Automated devices can be separated into two groups: direct and indirect action. It is preferable to indirect action. The article presents analysis of automatic devices used into tillage machines. Automatic control systems can be hydraulic, electro-hydraulic and pneumatic. Mechanical systems are not effective. Hydraulic systems are cheaper electric and pneumatic. They provide best of energy and quality indicators of technological process of tillage. Automatic control systems are uses draft forces, hitch position, depth of the implement, speed, acceleration and other sensors. Method of computer modeling and optimization of hydraulic automatic control systems of tillage units was developed. Results of computer modeling of hydraulic automatic control systems help to select direction of improving quality and energy indicators of technological process of tillage. Optimized combine implement depth and draft control system of arable unit allow reducing deviation the draft force of the plow; deviation of the depth of plowing is equal to or smaller than agro-technical requirements. Deviation of the draft force was decreased to 13.5 % for deviation specific soil resistance - 20 %, depth of plowing - 0.21 m, deviation of the depth of plowing - 0.019 m (9 %). Deviation of the depth of plowing may be decreased to 0.010 m (4,8 %), but deviation of the draft force shell be increased up to 16.2%. Optimized hydraulic automatic control system of garden tiller with a trapezoidal mechanism leaves smaller untreated soil area from 1.37-1.46 times.
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Chung, Jae H., and Changhoon Kim. "Modeling and control of a new robotic deburring system." Robotica 24, no. 2 (October 31, 2005): 229–37. http://dx.doi.org/10.1017/s0263574705002067.

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This paper discusses the modeling and control of a robotic manipulator with a new deburring tool, which integrates two pneumatic actuators to take advantage of a double cutting action. A coordination control method is developed by decomposing the robotic deburring system into two subsystems; the arm and the deburring tool. A decentralized control approach is pursued, in which suitable controllers were designed for the two subsystems in the coordination scheme. In simulation, three different tool configurations are considered: rigid, single pneumatic and integrated pneumatic tools. A comparative study is performed to investigate the deburring performance of the deburring arm with the different tools. Simulation results show that the developed robotic deburring system significantly improves the accuracy of the deburring operation.
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Ghinea, M., M. Agud, and M. Bodog. "Simulation of Pneumatic Systems Using Automation StudioTM Software Platform." International Journal of Simulation Modelling 19, no. 4 (December 5, 2020): 655–66. http://dx.doi.org/10.2507/ijsimm19-4-541.

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Nowadays, more and more industrial applications use pneumatic systems instead of hydraulic, electrical or mixed systems. This article presents the applicability of pneumatic engines for compressed air vehicles (CAV) from the perspective of their simulation on the Automation Studio software platform. It is desired to use the mechanical work produced by only pneumatic cylinders taken over by a mechanical system that transforms the linear motion into a rotational one, this helping to propel the CAV. A feature of this engine is the limited quantity of compressed air at disposal (a reservoir). Also, the most efficient operation of the pneumatic cylinders is studied to achieve the operation with low consumption of compressed air, thus leading to increased performances. The current simulation was run without the use of specific electric/electronic equipment (PLC /PACs). Therefore, the pneumatic devices had assured the command and control of the system.
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Heidari, Mohammad, and Hadi Homaei. "Quadratic Optimal Regulator Design of a Pneumatic Control Valve." Modelling and Simulation in Engineering 2013 (2013): 1–8. http://dx.doi.org/10.1155/2013/862190.

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Pneumatic control valves are still the most used devices in the process industries, due to their low cost and simplicity. This paper presents a regulator for pneumatic control valves using pole-placement method, optimal control, full-order state observer, and minimum-order state observer and their responses will be compared with each other. Bondgraph method has been used to model the control valve. Simulation results have been made for four models of regulator. The results show that minimum overshoot and settling time are achieved using optimal regulator of pneumatic valve.
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Sanada, Kazushi, and Yuki Akiyama. "Power-Assist Chair Using Pneumatic Actuator." International Journal of Automation Technology 5, no. 4 (July 5, 2011): 502–7. http://dx.doi.org/10.20965/ijat.2011.p0502.

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The power-assist chair we propose helps the user stand from a sitting position in the chair and sit down. The pneumatic cylinder pushes the seat up. The seat angle is detected by a rotary potentiometer and force acting on the user’s foot is measured by a force sensor. These signals are input to a computer and cylinder pressure is controlled so the seat simulates a spring. We also propose the concept of motion-sensing control based on real-time modification of a nominal seatangle pattern that, in turn, is based on the difference between a nominal pattern and the actual pattern of the foot force. A pneumatic simulation model was built to ensure power-assist chair use motion-sensing control. Experiment and simulation confirmed that the power-assist chair’s motion-sensing control operated as intended.
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Gorce, P., and M. Guihard. "Joint Impedance Pneumatic Control for Multilink Systems." Journal of Dynamic Systems, Measurement, and Control 121, no. 2 (June 1, 1999): 293–97. http://dx.doi.org/10.1115/1.2802468.

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In this paper, we propose a general controller for complex tasks such as coordination or manipulation for grasping systems or dynamic gaits for legged robots. Moreover, this controller is adapted to pneumatic actuated structures. The aim is then to ensure a dynamic tracking of position and force for systems which may interact with the environment or cooperate with each other. For that, we propose a nonlinear controller based on a computed torque method taking into account the actuator and the mechanical models. The originality lays in the consideration of impedance behaviour at each joint during free and constrained tasks. It leads to continuous control laws between contact and non-contact phases. The asymptotic stability is ensured using Popov criteria. The application proposed is the control of one pneumatic leg of a biped robot. We present a dynamic model of the leg and chosen trajectories. Simulation results of this new controller are presented, leading to a good behaviour of the leg during a whole walking cycle at relatively high velocities.
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Dissertations / Theses on the topic "Pneumatic control Computer simulation"

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Mehmood, Adeel. "Modeling, simulation and robust control of an electro-pneumatic actuator for a variable geometry turbocharger." Phd thesis, Université de Technologie de Belfort-Montbeliard, 2012. http://tel.archives-ouvertes.fr/tel-00827445.

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The choice of technology for automotive actuators is driven by the need of high power to size ratio. In general, electro-pneumatic actuators are preferred for application around the engine as they are compact, powerful and require simple controlling devices. Specially, Variable Geometry Turbochargers (VGTs) are almost always controlled with electro-pneumatic actuators. This is a challenging application because the VGT is an important part of the engine air path and the latter is responsible for intake and exhaust air quality and exhaust emissions control. With government regulations on vehicle pollutant emissions getting stringent by the year, VGT control requirements have also increased. These regulations and requirements can only be fulfilled with precise dynamic control of the VGT through its actuator. The demands on actuator control include robustness against uncertainty in operating conditions, fast and smooth positioning without vibration, limited number of measurements. Added constraints such as nonlinear dynamic behavior of the actuator, friction and varying aerodynamic forces in the VGT render classical control methods ineffective. These are the main problems that form the core of this thesis.In this work, we have addressed the above mentioned problems, using model based control complemented with robust control methods to overcome operational uncertainties and parametric variations. In the first step, a detailed physical model of an electro-pneumatic actuator has been developed; taking into account the nonlinear characteristics originating from air compressibility and friction. Means to compensate for aerodynamic force have been studied and implemented in the next step. These include model parametric adaptation and one dimensional CFD (Computational Fluid Dynamics) modeling. The complete model has been experimentally validated and a sensitivity analysis has been conducted to identify the parameters which have the greatest impact upon the actuator's behavior. The detailed simulation model has then been simplified to make it suitable for control purposes while keeping its essential behavioral characteristics (i.e. transients and dynamics). Next, robust controllers have been developed around the model for the control objective of accurate actuator positioning in presence of operational uncertainty. An important constraint in commercial actuators is that they provide output feedback only, as they are only equipped with low-cost position sensors. This hurdle has been overcome by introducing observers in the control loop, which estimate other system states from the output feedback. The estimation and control algorithms have been validated in simulation and experimentally on diesel engine test benches.
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Wang, Zheng. "The design and implementation of a computer-controlled pneumatic device to replace the deadweight in standard exercise equipment." Thesis, Cape Peninsula University of Technology, 2007. http://hdl.handle.net/20.500.11838/1384.

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Thesis (MTech (Information Technology))--Cape Peninsula University of Technology, 2007
The increasingly sedentary lifestyle of the past 30 years has contributed to declining health. Consequently, exercise is vital for good health maintenance. The global Health and Fitness Industry repeatedly indicates the need for optimally managed exercise with accurate information feedback. Compared to other industries, the fitness industry is lagging behind in incorporating Information Technology into its operations. On the other hand, the most current exercise equipment impose fixed-trajectory exercise on users with the dominance of static equipment designs. These exercise equipment are normally deadweight-based equipment. In deadweight-based exercise equipment, the weights generally can be changed only when the equipment is inactive. Therefore, a more novel exercise environment is required for current exercisers in the fitness industry. This thesis explores to develop a computer-controlled pneumatic dynamic resistance exercise equipment with onboard data management. This new technology optimises exercise effectiveness for users. Exercisers will have advanced diagnostic capacity, and will capture user data which can be manipulated into meaningful information for use by Health and Fitness Industry stakeholders. This thesis will explore all the key concepts about computer-controlled equipment. The key concepts to be investigated will include FX (force-displacement) control technology, pneumatic system control, fail-safe mechanics, and Graphical User Interface design. The primary aim of the project is to replicate and enhance the functionality, performance, and sensation of deadweight-based equipment. A further aim of the project is to investigate the feasibility of designing a compact retrofit-able pneumatic unit to replace the deadweights of existing standard exercise equipment. The computer control will be implemented on a "National Instruments PXI" computer featuring Data Acquisition and Control (DAQAC) capacity, and the software will be implemented using "LabVIEW 7.0', which is a graphic object-oriented computer language developed to facilitate hardware I software communications.
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Solomon, Luiza. "Learning and flow control in optimistic simulation." Thesis, McGill University, 2002. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=29475.

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This thesis has two main contributions. The first contribution is the development of a modular, easy-to-use Time Warp simulation engine targeted towards distributed-memory environments. The second contribution is the analysis and experimental verification of the performance of the flow control algorithm proposed by Choe in a distributed-memory environment.
The Time Warp simulation engine TWSIM provides our laboratory with a research medium for Time Warp simulations in a distributed-memory environment such as a network of workstations. The modular design of TWSIM allows for easy integration of any new simulation application and for fast testing of optimizations and improvements to the Time Warp mechanism. Its compact size and object-oriented implementation using the C++ programming language result in a short learning curve for future users and developers.
The flow control algorithm proposed by Choe was implemented and analyzed with the aid of the TWSIM simulation engine. The algorithm makes use of stochastic learning automata to balance simulations loads by continuously regulating the flow of events between processors during the course of the simulation. Three different load metrics are considered: memory usage, virtual time, and a space-time product of the first two metrics. The algorithm was tested with two different simulation applications: a queuing network simulation and a Personal Communication Services (PCS) simulation. Results show that the flow control algorithm reduces the memory usage; the number of rollbacks and the number of antievents at the expense of the simulation time. As well, it becomes apparent that the behaviour of the flow control algorithm is not a consequence of learning.
Finally, we discuss a number of approaches to learning and flow control using the outlines of the flow control algorithm, and we consider the extent of the performance improvement to be expected from memory-based schemes for limiting Time Warp optimism in a distributed-memory environment.
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Zhang, Yang. "Study of central control actions in computer simulation." Thesis, University of Ottawa (Canada), 2001. http://hdl.handle.net/10393/6456.

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The Canadian government identified the reliability of public urban transit systems and the improvement of customer services as a priority. Therefore, in 1997, Transport Canada and the Regional Municipality of Ottawa-Carleton have set up a project called the "Bus Priority System Project" to enhance the capabilities of the existing OPSSIM simulation model in order to satisfy these requirements. The enhancement of the simulation model would allow for the training of controllers, as well as for the evaluation of new control strategies. This thesis describes a part of the project. It works on the design, research, investigation and implementation of a Central Control Action Module, and on the design and implementation of a user-friendly Run Time Bus Progress Screen. A brief user guide describing how to use these new features is also included in the thesis for the benefit of potential users. In the conclusion, overviews for future research are identified.
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Chen, Lule. "Study of bus control strategies by computer simulation." Thesis, University of Ottawa (Canada), 1994. http://hdl.handle.net/10393/6654.

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In this thesis, a simulation model used to simulate the running of buses on a single route, OC Transpo route 95, is studied. The model is implemented on a platform different from its original design at the University of Ottawa, and validation experiments are performed. For the most part, the model seems valid, although some additional calibration is recommended. New headway-based bus control strategies are presented and compared with other known control strategies. The statistical analysis and comparisons of those control strategies are based on the testing results obtained from the simulation model. The new headway control policies (called "Message Board" and "hybrid" policies) are shown to provide better service reliability in terms of less variable headway for the high-frequency route 95. Finally, a prototype of a knowledge-based system for real-time bus control purposes is developed and tested on the simulation model. The prototype is shown to be an interesting alternative for real-time bus control: it can effectively interface with the simulation model and perform real-time service control. This prototype will be a building block in the development of a more complete knowledge-based system capable of implementing more complex real-time service control policies in the hope of providing assistance to human controllers.
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Cruz, Eva Brunilda. "Simulation of computer control strategies for column flotation." Thesis, Virginia Tech, 1994. http://hdl.handle.net/10919/46104.

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System identification techniques were applied to obtain mathematical expressions relating column flotation operating parameters. The empirical data were derived by making individual step changes in tailings rate, wash water rate, feed rate, frother addition and air rates, while measuring the pulp level and air holdup responses. The dynamic behavior of the flotation column is also analyzed for the conditions at which the tests were perfonned. After converting these mathematical equations into continuous and discrete transfer function matrices, several control algorithms were simulated on this column flotation empirical representation. Suggestions are provided to deal with the complexities of the process when designing a control scheme.
Master of Science
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Guerriero, Brian A. "Haptic control and operator-guided gait coordination of a pneumatic hexapedal rescue robot." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/24626.

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Chen, Yang. "Modeling, Control, and Design Study of Balanced Pneumatic Suspension for Improved Roll Stability in Heavy Trucks." Diss., Virginia Tech, 2017. http://hdl.handle.net/10919/95168.

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This research investigates a novel arrangement to pneumatic suspensions that are commonly used in heavy trucks, toward providing a dynamically balanced system that resists body roll and provides added roll stability to the vehicle. The new suspension, referred to as "balanced suspension," is implemented by retrofitting a conventional pneumatic suspension with two leveling valves and a symmetric plumbing arrangement to provide a balanced airflow and air pressure in the airsprings. This new design contributes to a balanced force distribution among the axles, which enables the suspension to maintain the body in a leveled position both statically and dynamically. This is in contrast to conventional heavy truck pneumatic suspensions that are mainly adjusted quasi-statically to level the body in response to load variations. The main objectives of the research are to discover and analyze the effects of various pneumatic components on the suspension dynamic response and numerically study the benefits of the pneumatically balanced suspension system. A pneumatic suspension model is established to capture the details of airsprings, leveling valves, check valves, pipes, and air tank based on the laws of fluid mechanics and thermodynamics. Experiments are designed and conducted to help determine and verify the modeling parameters and components. Co-simulation technique is applied to establish a multi-domain model that couples highly non-linear fluid dynamics of the pneumatic suspension with complex multi-body dynamics of an articulated vehicle. The model is used to extensively study effects of pneumatic balanced control of the suspensions on the tractor and trailer combination dynamics. The simulations indicate that the dual leveling valve arrangement of the balanced suspension provides better adjustments to the body roll by charging the airsprings on the jounce side, while purging air from the rebound side. Such an adjustment allows maintaining a larger difference in suspension force from side to side, which resists the vehicle sway and levels the truck body during cornering. Additionally, the balanced suspension better equalizes the front and rear drive axle air pressures, for a better dynamic load sharing and pitch control. It is evident from the simulation results that the balanced suspension increases roll stiffness without affecting vertical stiffness, and thereby it can serve as an anti-roll bar that results in a more stable body roll during steering maneuvers. Moreover, the Failure Mode and Effects Analysis (FMEA) study suggests that when one side of the balanced suspension fails, the other side acts to compensate for the failure. On the other hand, if the trailer is also equipped with dual leveling valves, such an arrangement will bring an additional stabilizing effect to the vehicle in case of the tractor suspension failure. The overall research results presented show that significant improvements on vehicle roll dynamics and suspension dynamic responsiveness can be achieved from the balanced suspension system.
PHD
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Vincent, Robert Durham. "Detection, simulation and control in models of epilepsy." Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=18684.

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We investigate the application of machine learning methods for the detection and control of seizure-like behavior in in vitro models of epilepsy. This research will form the basis for a new class of adaptive neurostimulation devices for the treatment of drug-resistant cases of epilepsy in humans. There are many technical obstacles to creating an adaptive control algorithm for these devices. At present, science has an incomplete understanding of the mechanisms and dynamics underlying both epilepsy and its treatments. This is reflected both in the long-standing problem of the detection or prediction of seizures and in the lack of clear criteria for optimizing an adaptive control algorithm. As in many medical problems, clinical data is sparse, expensive, and highly variable. We address the detection of epileptic states using boosted ensemble methods with a set of simple frequency spectrum features derived from electrophysiological recordings. While typical boosting methods are not designed for use with time series data, we present a recurrent boosting method that improves classification accuracy in our application domain. We also present an implementation of a biologically plausible model of epileptic neural tissue using a network of integrate and fire neurons with partially stochastic inputs and two time scales of refractory behavior. Finally, we train a reinforcement learning agent to control the dynamics of this network, reducing the occurrence of seizure-like events. This agent is intended to be a component of a closed-loop electrical stimulation device with a set of sensors and an adaptive stimulation strategy.
Nous étudions l'application des méthodes d'apprentissage automatique pour la détection et le contrôle d'activité semblable à une crise convulsive dans les modèles d'épilepsie in vitro. Cette recherche formera la base d'une nouvelle classe de dispositifs de neurostimulation auto-adaptatifs pour le traitement des patients qui ne répondent pas aux drogues antiépileptiques. Il y a beaucoup d'obstacles techniques pour créer un algorithme adaptatif pour ces dispositifs. Actuellement, la science n'a pas encore expliqué entièrement les mécanismes définissant l'épilepsie et ses traitements. Ceci est important à deux niveaux: Pour le problème de la détection ou de la prévision des crises, et pour établir des critères clairs pour optimiser un algorithme de contrôle adaptatif. Comme beaucoup de problèmes médicaux, les données cliniques sont rares, chères, et fortement variables. Nous adressons la détection des états épileptiques en utilisant les méthodes “boosting” avec un groupe de traits simples de spectre de fréquences dérivés des enregistrements électrophysiologiques. Tandis que les méthodes boosting typiques n'ont pas été conçues pour utiliser l'information disponible avec des données de séries chronologiques, nous présentons une méthode boosting récurrente qui améliore le taux de classification dans notre domaine d'application. Nous présentons également une exécution d'un modèle biologiquement plausible d'un système neural épileptique employant un réseau de neurones intègre-et tire ayant les signals d'entrées partiellement stochastiques et ayant deux échelles de temps de comportement réfractaire. En conclusion, nous formons un agent d'apprentissage par renforcement pour réduire l'occurrence d'activité semblable à une crise. Cet agent est prévu pour être une composante d'un dispositif en boucle fermée de stimulation électrique ayant un ensemble de capteurs et un algorithme adaptatif.
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Malchano, Matthew David 1980. "Biologically-plausible six-legged running : control and simulation." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/29695.

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Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2003.
Includes bibliographical references (p. 63-66).
This thesis presents a controller which produces a stable, dynamic 1.4 meter per second run in a simulated twelve degree of freedom six-legged robot. The algorithm is relatively simple; it consists of only a few hand-tuned feedback loops and is defined by a total of 13 parameters. The control utilizes no vestibular-type inputs to actively control orientation. Evidence from perturbation, robustness, motion analysis, and parameter sensitivity tests indicate a high degree of stability in the simulated gait. The control approach generates a run with an aerial phase, utilizes force information to signal aerial phase leg retraction, has a forward running velocity determined by a single parameter, and couples stance and swing legs using angular momentum information. Both the hypotheses behind the control and the resulting gait are argued to be plausible models of biological locomotion.
by Matthew David Malchano.
M.Eng.
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Books on the topic "Pneumatic control Computer simulation"

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M, Allbeck Jan, and Badler Norman I, eds. Virtual crowds: Methods, simulation, and control. San Rafael, Calif. (1537 Fourth Street, San Rafael, CA 94901 USA): Morgan & Claypool Publishers, 2008.

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Smillie, David George. Simulation of the performance of a hydro-pneumatic truck suspension. Dublin: University College Dublin, 1998.

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Eyman, Earl D. Modeling, simulation, andcontrol. St. Paul, MN: West Pub. Co., 1988.

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Zhou, Huamin. Computer modeling for injection molding: Simulation, optimization, and control. Hoboken, N.J: Wiley, 2013.

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Wei, Li. Grafische Simulation und Kollisionsvermeidung von Robotern. Braunschweig: Vieweg, 1992.

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Sunan, Huang. Applied Predictive Control. London: Springer London, 2002.

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Cacciabue, Pietro Carlo. Modelling and Simulation of Human Behaviour in System Control. London: Springer London, 1998.

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O, Beale Guy, and Chicatelli S. P. 1964-, eds. Digital simulation of dynamic systems: A control theory approach. Englewood Cliffs, NJ: PTR Prentice Hall, 1994.

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Shinskey, F. Greg. Simulating process control loops using BASIC. Research Triangle Park, N.C: Instrument Society of America, 1989.

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Shinskey, F. Greg. Simulating process control loops using BASIC. Research Triangle Park, N.C: Instrument Society of America, 1990.

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Book chapters on the topic "Pneumatic control Computer simulation"

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Garcia, Carlos A., Jose E. Naranjo, Edison Alvarez-M., and Marcelo V. Garcia. "Training Virtual Environment for Teaching Simulation and Control of Pneumatic Systems." In Lecture Notes in Computer Science, 91–104. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-25965-5_8.

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Oltedal, G. "Simulation of a Pneumatic Wave-Power Buoy with Phase Control." In Hydrodynamics of Ocean Wave-Energy Utilization, 303–13. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-82666-5_26.

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Tóthová, Mária, Ján Pitel’, and Alexander Hošovský. "Simulation of Hybrid Fuzzy Adaptive Control of Pneumatic Muscle Actuator." In Advances in Intelligent Systems and Computing, 239–46. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-18503-3_24.

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Prinz, Astrid A., and Scott L. Hooper. "Computer Simulation-Power and Peril." In Neurobiology of Motor Control, 107–33. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2017. http://dx.doi.org/10.1002/9781118873397.ch5.

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Hollingsworth, Joseph E. "Toward Formalizing Control System Simulation Software." In Studies in Computer Science, 213–20. Boston, MA: Springer US, 1994. http://dx.doi.org/10.1007/978-1-4615-1791-7_14.

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De Carolis, B., G. Cozzolongo, S. Pizzutilo, and V. L. Plantamura. "Agent-Based Home Simulation and Control." In Lecture Notes in Computer Science, 404–12. Berlin, Heidelberg: Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/11425274_42.

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Larkin, Eugene, Aleksandr Privalov, and Tatiana Akimenko. "Swarm Unit Digital Control System Simulation." In Lecture Notes in Computer Science, 3–12. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-78743-1_1.

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Kowalski, S. J., and A. Rybicki. "Computer Simulation of Drying Optimal Control." In Porous Media: Theory and Experiments, 227–38. Dordrecht: Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-011-4579-4_14.

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liu, Huran. "The Computer Simulation for the Pneumatic Motor with Planetary Drive of Bevel Gear." In Advanced Research on Computer Education, Simulation and Modeling, 312–17. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-21802-6_50.

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Zhengyong, Duan, Peng Yong, and Wu Heng. "Optimization and Control Researches into the Cooling System of Pneumatic Disc Brake." In Communications in Computer and Information Science, 644–52. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-23220-6_82.

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Conference papers on the topic "Pneumatic control Computer simulation"

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Kratschun, Filipp, David van Bebber, and Hubertus Murrenhoff. "One Dimensional Transient Pneumatic System Simulation." In ASME/BATH 2017 Symposium on Fluid Power and Motion Control. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/fpmc2017-4228.

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The increase of system dynamic within the area of pneumatics requires sophisticated numerical methods to determine the systems’ performance. Cycle durations in the range of just a few milliseconds and below violate the assumption of a stationary process. State of the art pneumatic calculations are built upon this assumption and, therefore, gas dynamic solvers have to be used to predict the systems’ behavior accurately. In general it is possible to calculate several flow parameters for transient gaseous flows using computational fluid dynamics (CFD) software, but despite increasing processing power of modern computers, solving particular problems is yet time-consuming. A simulation of a few milliseconds results in a computational time of several hours which makes the design of a highly dynamic pneumatic system lengthy. This paper presents a one dimensional transient numerical model which is capable of computing a transient pneumatic system’s performance time-efficiently yet retaining the accuracy of a CFD simulation. It allows to determine flow parameters, e.g., density, pressure and velocity, within transient gaseous flows including discontinuities. In particular the proposed model depicts an approach to calculate transient flows with discontinuous flow curvature. Such jumps naturally occur in pneumatic systems within hose connectors or valves. Numerical results are compared to a CFD parameter study to verify the one dimensional simulation.
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Oguntosin, Victoria, Slawomir J. Nasuto, and Yoshikatsu Hayashi. "Embedded Fuzzy Logic Controller for Positive and Negative Pressure Control in Pneumatic Soft Robots." In 2017 UKSim-AMSS 19th International Conference on Computer Modelling & Simulation (UKSim). IEEE, 2017. http://dx.doi.org/10.1109/uksim.2017.41.

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Wang, Bo, Tao Wang, Wei Fan, and Yu Wang. "Study of Pneumatic Force Servo System for Resistance Spot Welding." In ASME 2014 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/detc2014-34807.

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The purpose of this paper is to develop a pneumatic servo drive mechanism, which is the basis of high performance pneumatic servo gun for resistance spot welding. In order to increase the output force and reduce costs, booster cylinder and high speed solenoid valve are included in the system. In this paper, a mathematical model of the pneumatic force servo system is derived. Pulse-Width-Modulation control scheme is given to control the solenoid valves. Computer simulation results and experimental results show that the designed pneumatic servo force system has a good performance, which verifies the feasibility of the designed scheme.
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Taghizadeh, Sasan, Brian Surgenor, and Mohammed Abu-Mallouh. "Control of a Pneumatic Gantry Robot With Adaptive Neural Network Compensation." In ASME 2010 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/detc2010-28239.

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In a previous paper, the application of a pneumatic gantry robot to contour tracking was examined. A hybrid controller was structured to control the contact force and the tangential velocity, simultaneously. Performance was found to be limited by system lag and Coulomb friction. A neural network (NN) compensator was subsequently developed to counter both effects. Simulation results for straight and curved edge workpieces demonstrated the effectiveness of the NN compensator. This paper validates the results experimentally, highlights the tuning issues associated with an adaptive NN compensator, and confirms the capabilities of a pneumatic gantry robot.
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Sanchez-Solar, Sergio-Daniel, Edgar-Alejandro Rivas-Araiza, Efren Gorrostieta-Hurtado, and Juan-Manuel Ramos-Arreguin. "Simulation of a two DOF pneumatic manipulator robot using control based on back propagation neural network." In 2017 International Conference on Electronics, Communications and Computers (CONIELECOMP). IEEE, 2017. http://dx.doi.org/10.1109/conielecomp.2017.7891825.

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Lyu, Naesung, Amane Shimura, and Kazuhiro Saitou. "Optimal Tolerance Allocation of Automotive Pneumatic Control Valves Based on Product and Process Simulations." In ASME 2006 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/detc2006-99592.

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This paper discusses a computational method for optimally allocating dimensional tolerances for an automotive pneumatic control valve. Due to the large production volume, costly tight tolerances should be allocated only to the dimensions that have high influence to the quality. Given a parametric geometry of a valve, the problem is posed as a multi-objective optimization with respect to product quality and production cost. The product quality is defined as 1) the deviation from the nominal valve design in the linearity of valve stroke and fluidic force, and 2) the difference in fluidic force with and without cavitation. These quality measures are estimated by using Monte Carlo simulation on a Radial-Basis Function Network (RBFN) trained with computational fluid dynamics (CFD) simulation of the valve operation. The production cost is estimated by the tolerance-cost relationship obtained from the discrete event simulations of valve production process. A multi-objective genetic algorithm is utilized to generate Pareto optimal tolerance allocations with respect to these objectives, and alternative tolerance allocations are proposed considering the trade-offs among multiple objectives.
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Abu-Mallouh, Mohammed, and Brian Surgenor. "Hybrid Force/Velocity Control of a Pneumatic Gantry Robot for Contour Tracking: Tuning and Model Validation." In ASME 2007 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/detc2007-34291.

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The paper examines hybrid force/velocity control of a pneumatic gantry robot for contour tracking. Both experimental and simulation results are presented. The control system is structured to control the contact force and the tangential velocity simultaneously. Controller tuning and model validation results are given for a fixed gain PI-based hybrid force/velocity controller. A simple yet effective model is presented in sufficient detail such that other researchers can perform their own simulations to investigate the utility of their own controller designs. The model is used to demonstrate the negative effects of Coulomb friction. Future work will focus on friction compensation techniques to improve performance.
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Qin, Gang, Jinglai Wu, Yunqing Zhang, and Liping Chen. "Multidisciplinary Co-Simulation of All-Terrain Crane With the Hydro-Pneumatic Suspension and Multi-Bridges Steering System." In ASME 2010 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/detc2010-28195.

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Hydro-pneumatic suspension and multi-bridges steering system, which can meet the demands of ride comfort and steering maneuverability of the crane by their excellent nonlinear stiffness and damping characteristics and innovative control technology in their electro-hydraulic rear axle steering system, is used for construction industry vehicles widely. Such systems have great influences on controllability, steering stability, driving comfort and safety of a vehicle. Such a complex system includes mechanical multi-body, hydraulic, and control components which are influenced each other. However, few previous works concerned the coupling effects from multidisciplinary view, in general just single domain detail model are built and studied. This paper presents a detailed 5 axle all-terrain crane with hydro-pneumatic suspension and multi-bridges steering system consisting of the mechanical parts of suspension and steering multi-body model with ADAMS, suspension and steering hydraulic model that contain cylinder, control valve, and hydraulic pipes, etc., and the control strategy are built with AMESim software. A co-simulation is carried out to study the handling and stability of the vehicle affected by the hydro-pneumatic suspension and electro-hydraulic steering system. Some typical handling maneuvers, such as cornering steering releasing test and pylon slalom course of test are carried out by co-simulation to evaluate the control strategy of the steering and hydro-pneumatic suspension performance numerically. Comparisons between measured data and simulation results validate the correctness of the model.
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Hu, Xudong, Ying Chen, Zuchao Zhu, and Chuanyu Wu. "Trajectory Tracking of a Pneumatic Robot and Its Application in Tele-Calligraphy." In ASME 2005 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/detc2005-84627.

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Pneumatic devices is widely used in industry mainly in the state of open-loop control. In this paper, a pneumatic robot has been implemented in which pneumatic servo control is used to build a close-loop control system. An analytical model of an optimal state-feedback + PI is derived mathematically to describe the current design of the pneumatic robot. Based on this model, its control strategy and simulation are presented. The results show that the optimal state-feedback + PI model can satisfy the requirements of trajectory tracking of the pneumatic robot. A tele-calligraphy system, which can mimic a Chinese calligraphy, is built to test the trajectory tracking characteristics. The experimental results confirm that the pneumatic device can track the trajectory accurately.
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Bangaru, Mohan, and Saravanakumar Devaraj. "Energy Efficiency Analysis of Interconnected Pneumatic Cylinders Servo Positioning System." In ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-50196.

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Pneumatic systems exhibits many advantages including high speed and better efficiency. Servo pneumatic system enables the pneumatic system to be employed in varying position applications such as robots. There will be always a compromise between the speed and allowable overshoot in determining the parameters of the system based on the applications. In present research, a system comprising of two pneumatic cylinders attached to each other is used. A small cylinder which is used to for fine adjustments in accuracy is mounted on the rod end of the large cylinder which travels the coarse movement. This system reduces the overshoot of the system without much reduction in speed. Mathematical model of the system comprising of motion dynamics, pressure and temperature dynamics inside cylinder chambers and mass flow variation in the valves are derived from the physical laws and recent literature information. Based on the mathematical model, a simulation model of the system is created in the Matlab-Simulink software. A fuzzy based control system has been designed for servo position control of the system. The simulation model is validated using the experimental results. The energy efficiency of the system is computed from the overall power developed in the system and cumulative air power supplied to the system. The analysis of the dynamics of the system while tracking a sinusoidal signal is taken as a task for analyzing the energy efficiency of the system. The energy efficiency of the system has been analyzed for various sizes of cylinders, various supply pressure levels to both the cylinders in the system and various applied loads to the system. To reduce the number of experiments to be conducted, a Taguchi based design of experiments is carried out. A statistical analysis has been made for analyzing the variation of energy efficiency with the above parameters. From the study, external load affects the energy efficiency in a considerable way which has 54.39% of the overall contribution. The second dominant factor on influencing energy efficiency is supply pressure to cylinder A which has the contribution of 23.65%.
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Reports on the topic "Pneumatic control Computer simulation"

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Kettering, B., and P. Van Arsdall. Integrated computer control system startup simulation. Office of Scientific and Technical Information (OSTI), February 1998. http://dx.doi.org/10.2172/8307.

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Kettering, B., and P. Van Arsdall. Integrated computer control system status monitor simulation. Office of Scientific and Technical Information (OSTI), September 1998. http://dx.doi.org/10.2172/8308.

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Van Arsdall, P., and C. E. Annese. Integrated computer control system countdown status messages simulation. Office of Scientific and Technical Information (OSTI), October 1998. http://dx.doi.org/10.2172/8047.

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Middlebrooks, Sam E., John P. Jones, and Patrick H. Henry. The Compass Paradigm for the Systematic Evaluation of U.S. Army Command and Control Systems Using Neural Network and Discrete Event Computer Simulation. Fort Belvoir, VA: Defense Technical Information Center, November 2005. http://dx.doi.org/10.21236/ada450646.

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Bobashev, Georgiy, John Holloway, Eric Solano, and Boris Gutkin. A Control Theory Model of Smoking. RTI Press, June 2017. http://dx.doi.org/10.3768/rtipress.2017.op.0040.1706.

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We present a heuristic control theory model that describes smoking under restricted and unrestricted access to cigarettes. The model is based on the allostasis theory and uses a formal representation of a multiscale opponent process. The model simulates smoking behavior of an individual and produces both short-term (“loading up” after not smoking for a while) and long-term smoking patterns (e.g., gradual transition from a few cigarettes to one pack a day). By introducing a formal representation of withdrawal- and craving-like processes, the model produces gradual increases over time in withdrawal- and craving-like signals associated with abstinence and shows that after 3 months of abstinence, craving disappears. The model was programmed as a computer application allowing users to select simulation scenarios. The application links images of brain regions that are activated during the binge/intoxication, withdrawal, or craving with corresponding simulated states. The model was calibrated to represent smoking patterns described in peer-reviewed literature; however, it is generic enough to be adapted to other drugs, including cocaine and opioids. Although the model does not mechanistically describe specific neurobiological processes, it can be useful in prevention and treatment practices as an illustration of drug-using behaviors and expected dynamics of withdrawal and craving during abstinence.
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Tarko, Andrew P., Mario A. Romero, Vamsi Krishna Bandaru, and Cristhian Lizarazo. TScan–Stationary LiDAR for Traffic and Safety Applications: Vehicle Interpretation and Tracking. Purdue University, 2022. http://dx.doi.org/10.5703/1288284317402.

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To improve traffic performance and safety, the ability to measure traffic accurately and effectively, including motorists and other vulnerable road users, at road intersections is needed. A past study conducted by the Center for Road Safety has demonstrated that it is feasible to detect and track various types of road users using a LiDAR-based system called TScan. This project aimed to progress towards a real-world implementation of TScan by building two trailer-based prototypes with full end-user documentation. The previously developed detection and tracking algorithms have been modified and converted from the research code to its implementational version written in the C++ programming language. Two trailer-based TScan units have been built. The design of the prototype was iterated multiple times to account for component placement, ease of maintenance, etc. The expansion of the TScan system from a one single-sensor unit to multiple units with multiple LiDAR sensors necessitated transforming all the measurements into a common spatial and temporal reference frame. Engineering applications for performing traffic counts, analyzing speeds at intersections, and visualizing pedestrian presence data were developed. The limitations of the existing SSAM for traffic conflicts analysis with computer simulation prompted the research team to develop and implement their own traffic conflicts detection and analysis technique that is applicable to real-world data. Efficient use of the development system requires proper training of its end users. An INDOT-CRS collaborative process was developed and its execution planned to gradually transfer the two TScan prototypes to INDOT’s full control. This period will be also an opportunity for collecting feedback from the end user and making limited modifications to the system and documentation as needed.
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Floyd, Jason, and Daniel Madrzykowski. Analysis of a Near Miss in a Garden Apartment Fire – Georgia 2022. UL's Fire Safety Research Institute, October 2022. http://dx.doi.org/10.54206/102376/rsfd6862.

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On February 9, 2022, Cobb County Fire and Emergency Services responded to a fire in a ground floor unit in a garden apartment building. At arrival, the fire was a post-flashover fire in a bedroom. Initial fire control was attempted by an interior fire attack team which was unable to quickly locate the fire. Exterior suppression through the bedroom window was started prior to discovery of the fire by the interior team. Shortly after fire discovery by the internal team, a mayday was called. Four firefighters from the interior fire attack team received first and second degree burns. This report analyzes photographic, video, and written documentation from the incident to evaluate the timeline of the incident and to assess the fire conditions present. Computer modeling using the Fire Dynamics Simulator (FDS) was performed to provide further insight into the fire conditions and the impact of decisions and actions on the fire ground. Additionally, data from a full scale fire test of a similar fire in a similar structure was used to provide additional insight. Four FDS simulations were performed in support of the analysis. These included a simulation of the event as it unfolded and three simulations looking at the impact of alternate tactics which included: initial exterior attack prior to entry, the use of a smoke curtain to protect the building exit path, and interior only attack. FDS simulations provided insight on the heat present in the apartment during the fire and the impact of the interior and exterior suppression on conditions inside the apartment. Full scale test data of a similar fire showed similar behavior to the FDS predictions and gives credence to the FDS results. Results of the analysis suggest that injuries resulted from the length of time the interior attack team was present inside the apartment before actions were taken to reduce the severity of the fire. Six contributing factors were identified including size-up, communication and accountability, delayed exterior attack, lack of entry hall protection, the apartment layout and construction, thermal imager use, and mayday procedures and training. The last contributing factor was a positive contribution that helped avoid more serious injuries. Based on the contributing factors, five recommendations were made that include improved size-up, exterior fire control to prevent exterior spread, protection of exit pathways, basing fire ground tactics on known information, and recognizing when a change in tactics is needed.
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Rafaeli, Ada, Russell Jurenka, and Chris Sander. Molecular characterisation of PBAN-receptors: a basis for the development and screening of antagonists against Pheromone biosynthesis in moth pest species. United States Department of Agriculture, January 2008. http://dx.doi.org/10.32747/2008.7695862.bard.

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The original objectives of the approved proposal included: (a) The determination of species- and tissue-specificity of the PBAN-R; (b) the elucidation of the role of juvenile hormone in gene regulation of the PBAN-R; (c) the identificationof the ligand binding domains in the PBAN-R and (d) the development of efficient screening assays in order to screen potential antagonists that will block the PBAN-R. Background to the topic: Moths constitute one of the major groups of pest insects in agriculture and their reproductive behavior is dependent on chemical communication. Sex-pheromone blends are utilised by a variety of moth species to attract conspecific mates. In most of the moth species sex-pheromone biosynthesis is under circadian control by the neurohormone, PBAN (pheromone-biosynthesis-activating neuropeptide). In order to devise ideal strategies for mating disruption/prevention, we proposed to study the interactions between PBAN and its membrane-bound receptor in order to devise potential antagonists. Major conclusions: Within the framework of the planned objectives we have confirmed the similarities between the two Helicoverpa species: armigera and zea. Receptor sequences of the two Helicoverpa spp. are 98% identical with most changes taking place in the C-terminal. Our findings indicate that PBAN or PBAN-like receptors are also present in the neural tissues and may represent a neurotransmitter-like function for PBAN-like peptides. Surprisingly the gene encoding the PBAN-receptor was also present in the male homologous tissue, but it is absent at the protein level. The presence of the receptor (at the gene- and protein-levels), and the subsequent pheromonotropic activity are age-dependent and up-regulated by Juvenile Hormone in pharate females but down-regulated by Juvenile Hormone in adult females. Lower levels of pheromonotropic activity were observed when challenged with pyrokinin-like peptides than with HezPBAN as ligand. A model of the 3D structure of the receptor was created using the X-ray structure of rhodopsin as a template after sequence alignment of the HezPBAN-R with several other GPCRs and computer simulated docking with the model predicted putative binding sites. Using in silico mutagenesis the predicted docking model was validated with experimental data obtained from expressed chimera receptors in Sf9 cells created by exchanging between the three extracellular loops of the HezPBAN-R and the Drosophila Pyrokinin-R (CG9918). The chimera receptors also indicated that the 3ʳᵈ extracellular loop is important for recognition of PBAN or Diapause hormone ligands. Implications: The project has successfully completed all the objectives and we are now in a position to be able to design and screen potential antagonists for pheromone production. The successful docking simulation-experiments encourage the use of in silico experiments for initial (high-throughput) screening of potential antagonists. However, the differential responses between the expressed receptor (Sf9 cells) and the endogenous receptor (pheromone glands) emphasize the importance of assaying lead compounds using several alternative bioassays (at the cellular, tissue and organism levels). The surprising discovery of the presence of the gene encoding the PBAN-R in the male homologous tissue, but its absence at the protein level, launches opportunities for studying molecular regulation pathways and the evolution of these GPCRs. Overall this research will advance research towards the goal of finding antagonists for this important class of receptors that might encompass a variety of essential insect functions.
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