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Shahan, Michael R., and William Randolph Reed. "The design of a laboratory apparatus to simulate the dust generated by longwall shield advances." International Journal of Coal Science & Technology 6, no. 4 (2019): 577–85. http://dx.doi.org/10.1007/s40789-019-00273-4.
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Abstract A laboratory apparatus (shield dust simulator) was designed and constructed to simulate the dust generated during the advance of longwall hydraulic roof supports, or shields. The objective of the study was to develop a tool that could be used to test the hypothesis that foam applied to a mine roof prior to a shield advance could be used to reduce the respirable dust generated during shield advances. This paper will outline the design parameters for the development of the system, as well as describe baseline testing of coal and limestone dust. Results show that the average instantaneous respirable dust concentrated during simulated shield advance. Confidence intervals were calculated from the instantaneous respirable dust data to determine the repeatability of the data produced by the device.
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Siqueira de Carvalho, Ricardo, Pankaj Kumar Sen, Yaswanth Nag Velaga, Lucas Feksa Ramos, and Luciane Neves Canha. "Communication System Design for an Advanced Metering Infrastructure." Sensors 18, no. 11 (2018): 3734. http://dx.doi.org/10.3390/s18113734.
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This paper primarily deals with the design of an Information and Control Technology (ICT) network for an advanced metering infrastructure (AMI) on the IEEE 34 node radial distribution network. The application is comprised of 330 smart meters deployed in the low voltage system and 33 data concentrators in the medium voltage system. A power line carrier (PLC) communication system design is developed and simulated in Network Simulator 3 (NS-3). The simulation result is validated by comparing the communication network performance with the minimum performance requirements for AMI. The network delay of a single data frame is calculated and compared with the simulation delay. The design methodology proposed in this article may be used for other smart grid applications. The secondary goal is to provide AMI network traffic based on the IEC Std. 61968 and a discussion on whether or not AMI could possibly be a source of big data on the future power grid.
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Doğan, Atakan, Mustafa Müjdat Atanak, Safai Tandoğan, Reha Oğuz Altuğ, and Hakan Güray Şenel. "DGridSim: a multi-model discrete-event simulator for real-time data grid systems." SIMULATION 90, no. 11 (2014): 1209–30. http://dx.doi.org/10.1177/0037549714545415.
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Data grid systems are utilized to share, manage, and process large data sets. On the other hand, an increasing number of applications with real-time constraints arise in several disciplines of science and engineering. The performance of a data grid system for real-time applications is highly dependent on the underlying job scheduling, data scheduling, and data replication algorithms and advance reservation mechanism. Thus, in the literature, there are numerous studies that propose solutions to the job/data scheduling, data replication, and advance reservation problems. In these studies, a number of simulators, emulators, or test beds have been used to evaluate the proposed algorithms. Furthermore, these simulators/emulators usually adopt fixed-grid models, which in turn dictate specific job/data scheduling and data replication mechanisms. In the literature, there is no unified framework for modeling grid systems with different architectures, which can allow researchers to develop new grid system models and evaluate them in a flexible manner. This paper presents a unique framework for modeling real-time data grid systems that attempts to unify a large class of job scheduling, data scheduling, and data replication algorithms based on several system services. Then, in order to enable the development of these algorithms under different system models, DGridSim is realized to be a multi-model discrete-event simulator, and its capabilities are exemplified by means of a set of simulation results. The main contribution of the research is DGridSim, which can model and simulate a variety of different data grid system models by means of several system services and their interactions.
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Grandi, Gerardo, Rodolfo Ferrer, and Tamer Bahadir. "APPLICATION OF STUDSVIK’S CMS5 CODE SYSTEM TO ACCIDENT TOLERANT FUEL CORE DESIGN AND ANALYSIS." EPJ Web of Conferences 247 (2021): 02020. http://dx.doi.org/10.1051/epjconf/202124702020.
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The possible deployment of Accident Tolerant Fuels (ATF) for currently-operating Light Water Reactors (LWR) has prompted interest in the use of Studsvik’s CMS5 code system to support the analysis of such advanced ATF core designs. Various ATF concepts have been proposed; for example, uranium silicide (U3Si2) fuel, together with iron-based (FeCrAl) cladding. The purpose of this work is to showcase the application of the CMS5 code system, which includes the CASMO5 advanced lattice physics code and the SIMULATE5 three-dimensional nodal simulator, to the analysis of a U3Si2/FeCrAl ATF concept. Given that the CMS5 code system was designed from inception to enable the analysis of advanced core designs, only minor changes to the CASMO5 lattice physics code and SIMULATE5 core simulator are necessary. The current CASMO5 586 energy-group nuclear data library provides all the necessary data to support the generation of homogenized data for downstream use by SIMULATE5 for ATF. The SIMULATE5 nodal code, which features a simplified fuel pin model, requires updating various thermophysical properties corresponding to the U3Si2/SiC ATF fuel and the gaseous conductance models. An equilibrium core for the Integral Inherently Safe (I2S) LWR design developed by the Georgia Institute of Technology was selected. The results of the CMS5 simulation were compared with those in the literature and were found to be in good agreement, giving us confidence that the CMS5 package can be used in the modeling of LWR systems with ATF technology.
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Minakawa, T., J. Sugawara, Y. Ichikawa, K. Suzuki, T. Narita, and K. Dan. "New Advanced Training Simulator Design for Power System Operations." IFAC Proceedings Volumes 21, no. 11 (1988): 509–15. http://dx.doi.org/10.1016/s1474-6670(17)53787-8.
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Hosman, R., S. Advani, and N. Haeck. "Integrated design of flight simulator motion cueing systems." Aeronautical Journal 109, no. 1091 (2005): 1–12. http://dx.doi.org/10.1017/s000192400000049x.
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Abstract An advanced design process applicable to the specification of flight simulator cueing systems is presented in this paper. This process is based on the analysis of the pilot-vehicle control loop by using a pilot model incorporating both visual and vestibular feedback, and the aircraft dynamics. After substituting the model for the simulated aircraft, the analysis tools are used to adjust the washout filter parameters with the goal of restoring pilot control behaviour. This process allows the specification of the motion cueing algorithm. Then, based on flight files representative of the operational flight envelope, the required motion system space is determined. The motion-base geometry is established based on practical limitations, as well as criteria for the stability of the platform with respect to singular conditions. With this process the characteristics of the aircraft, the tasks to be simulated, and the missions themselves are taken into account in defining the simulator motion cueing system.
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He, Feng, Hai Bo Wu, Huan Li, and Yi Ming Li. "Parameter Matching and Simulation for Powertrain System of Pure Electric City Bus." Advanced Materials Research 977 (June 2014): 218–21. http://dx.doi.org/10.4028/www.scientific.net/amr.977.218.
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Powertrain system of pure electric city bus is composed mainly of battery, motor and transmission, it decide practically the acceleration performance of pure electric city bus. The method and principle of parameters design for dynamic system of pure electric city bus was investigated in this paper. Based on parameter matching for electromotor, cells and driveline, a performance simulation model was developed utilizing the dynamic simulation software of advanced vehicle simulator. The acceleration performance of pure electric city bus was simulated in CYC_ECE_EUDC drive cycle. Simulation result indicates that the acceleration performances of pure electric bus and maximum mileage were satisfied to the design requirement. Description that pure electric city bus powertrain system and simulation model were reasonably.
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Bouali, Hamid, Bachir Benhala, and Mohammed Guerbaoui. "Multi-objective optimization of CMOS low noise amplifier through nature-inspired swarm intelligence." Bulletin of Electrical Engineering and Informatics 12, no. 5 (2023): 2824–36. http://dx.doi.org/10.11591/eei.v12i5.5512.
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This paper presents the application of two swarm intelligence techniques, multi-objective artificial bee colony (MOABC) and multi-objective particle swarm optimization (MOPSO), to the optimal design of a complementary metal oxide semiconductor (CMOS) low noise amplifier (LNA) cascode with inductive source degeneration. The aim is to achieve a balanced trade-off between voltage gain and noise figure. The optimized LNA circuit operates at 2.4 GHz with a 1.8 V power supply and is implemented in a 180 nm CMOS process. Both optimization algorithms were implemented in MATLAB and evaluated using the ZDT1, ZDT2, and ZDT3 test functions. The optimized designs were then simulated using the advance design system (ADS) simulator. The results showed that the MOABC and MOPSO techniques are practical and effective in optimizing LNA design, resulting in better performance than previously published works, with a gain of 21.2 dB and a noise figure of 0.848 dB.
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Chindhi, Pradeep, Rajani Hiriyur, and Geeta Kalkhambkar. "A 2.45 GHz high gain radio frequency energy harvesting system in the Internet of Thing applications." International Journal of Experimental Research and Review 31, Spl Volume (2023): 108–18. http://dx.doi.org/10.52756/10.52756/ijerr.2023.v31spl.011.
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To power dedicated ultra-low-power Internet of Things (IoT) devices, high-voltage electric power must be converted to low voltage, which causes losses. Radio Frequency (RF) energy harvesting allows for scavenging ultra-low RF power from nearby RF sources. This paper proposes a single-band RF Energy Harvesting System (RFEHS) for the self-sustainable IoT application. The proposed Square Microstrip Patch Antenna (SMPA) is designed, simulated, and verified using Mentor Graphics software simulations and Computer Simulation Technology Microwave Studio (CST MWS) 3D electromagnetic simulator. For the design and simulation of the rectenna (Antenna + Rectifier), Advance Design System (ADS) is used. The SMPA is fabricated on Rogers RT5880 substrate material having a dielectric constant of 2.2 and a substrate thickness of 2.5 mm. The SMPA peak gain and directivity of 6.81 dBi and 7.24 dBi, respectively, are recorded. The proposed SMPA has an approximately omnidirectional radiation pattern at 2.45 GHz. The SMPA is tested on Vector Network Analyzer (VNA) to validate simulated CST MWS Mentor Graphics results. A single-stage voltage multiplier circuit has been analyzed and discussed using vendor-defined (Murata) library components. The rectenna has a maximum RF to DC conversion efficiency of 65.17% and a DC output voltage of 3.4 V at 10 dBm RF input power and load resistance, R= 3 kΩ. A Transmission Line (TL) equivalent model is derived for the proposed SMPA.
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Benedict, Knud, Sandro Fischer, Michael Gluch, et al. "Innovative Fast Time Simulation Tools for Briefing / Debriefing in Advanced Ship Handling Simulator Training and Ship Operation." Transactions on Maritime Science 6, no. 1 (2017): 24–38. http://dx.doi.org/10.7225/toms.v06.n01.003.
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The innovative “Simulation-Augmented Manoeuvring Design, Monitoring & Control” system (SAMMON) based on Fast Time Simulation (FTS) technology was developed at the Institute for Innovative Ship Simulation and Maritime Systems (ISSIMS) of the Maritime Simulation Centre Warnemuende MSCW. The system consists of software modules for (a) Manoeuvring Design & Planning, (b) Monitoring & Control based on Multiple Dynamic Prediction and (c) Trial & Training. It is based on complex ship dynamic models for rudder, thruster or engine manoeuvre simulation under different environmental conditions. It is an effective tool for lecturing and demonstrating ship's motion characteristics, as well as for ship handling simulator training. It allows the trainee to immediately see the results of the actual rudder, engine or thruster commands, without having to wait for the real-time response of the vessel. The Maritime Simulation Centre of AIDA Cruises at Rostock/Germany and the CSMART Center for Simulator Maritime Training of Carnival Corporation at Almere/NL have some experience with the use of this new technology to improve simulator training in Advanced Ship Handling Training courses. Examples of its application in briefing/debriefing and introductory lectures for simulator exercises specifically for typical cruise ships with Twin-Screw and Rudder systems will be presented in the paper and at the conference.
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Bhoi, Sourav Kumar, Sanjaya Kumar Panda, Chittaranjan Mallick, and Kalyan Kumar Jena. "Impact of road architecture and design on performance of city-based VANETs." Open Computer Science 11, no. 1 (2021): 423–36. http://dx.doi.org/10.1515/comp-2020-0217.
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Abstract Vehicular communication is the communication between the vehicles to provide intelligent transportation systems (ITSs) services to the end users. It is the most advance and emerging wireless technology in ad hoc network. On the other hand, construction of roads has a great impact in forwarding the data to the destination. As vehicles are moving with high speeds, the architecture of roads can change the performance of routing and data forwarding in the vehicular ad hoc network (VANET). If the construction of the roads in a city area is planned with intelligent junctions, flyovers, multilane, etc., then the performance of the system increases. In this paper, we have analyzed the impact of road elements like intersections, flyovers, multilane, buildings, hills, etc., on VANET routing and find solutions for the problems related to the performance of the system. We also simulate the impact of these elements in VANET routing and analyzed the performance using OMNeT++ network simulator and SUMO traffic simulator. The performance is studied by comparing standard GSR and GPSR position-based routing protocols.
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Hudec, Premysl, and Viktor Adler. "On the Testing of Advanced Automotive Radar Sensors by Means of Target Simulators." Sensors 20, no. 9 (2020): 2714. http://dx.doi.org/10.3390/s20092714.
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The rapid development and wide commercial implementation of automotive radar sensors are strengthening the already considerable interest in matching radar target simulators. Such simulators boast promising results when used for both essential functional inspections of active sensors and the high-speed testing of numerous traffic scenarios while examining complex reactions of automobile electronic systems. For these purposes, advanced versions of target simulators enabling a generation of multiple targets moving at different velocities and ranges are required. The design, practical implementation and system programming of advanced sensor simulator setups require a detailed analytical description concerning all important technical aspects. An abundance of detailed information on the behavior and parameters of automotive radar sensors can be found in the references, but similar knowledge on sensor simulator setups is lacking. This article presents detailed analyses of the all-important RF parameters, where special attention is paid to phase noise, and its analytical description takes into account an even greater number of simulated targets. The derived analytical formulas enable both an optimal setup implementation and system programming of a wide range of practical testing procedures.
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Al-Mumen, Haider, and Ahmed Abdulkadhim Hamad. "Design and characterization of an RF reused energy system for nano-devices." Bulletin of Electrical Engineering and Informatics 11, no. 5 (2022): 2595–602. http://dx.doi.org/10.11591/eei.v11i5.4321.
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In this work a simple, high conversion efficiency, and high output voltage energy harvesting device was designed and simulated. The harvesting device consists of microstrip antennas, matching and rectifier circuits. Both mono patch and array antennas are designed to be operated at 5.8 GHz. The simulation work was implemented using central standard time (CST) studio. Results showed an accepted return loss and high gain. To more elevate the device gain and then to obtain greater output energy, an array of microstrip antennas was designed. To convert the radio frequency (RF) energy to dc output voltage, a rectifier, which consists of a voltage doubter and schottky diodes was designed using advanced design system (ADS) simulator. Furthermore, to achieve 50 Ω impedance, a matching circuit was designed by adjusting the microstrip line patterns. The output voltage of the device was 6.2 V at input power 20 dBm and 560 Ω load resistance.
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Pusch, Manuel, Daniel Ossmann, and Tamás Luspay. "Structured Control Design for a Highly Flexible Flutter Demonstrator." Aerospace 6, no. 3 (2019): 27. http://dx.doi.org/10.3390/aerospace6030027.
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The model-based flight control system design for a highly flexible flutter demonstrator, developed in the European FLEXOP project, is presented. The flight control system includes a baseline controller to operate the aircraft fully autonomously and a flutter suppression controller to stabilize the unstable aeroelastic modes and extend the aircraft’s operational range. The baseline control system features a classical cascade flight control structure with scheduled control loops to augment the lateral and longitudinal axis of the aircraft. The flutter suppression controller uses an advanced blending technique to blend the flutter relevant sensor and actuator signals. These blends decouple the unstable modes and individually control them by scheduled single loop controllers. For the tuning of the free parameters in the defined controller structures, a model-based approach solving multi-objective, non-linear optimization problems is used. The developed control system, including baseline and flutter control algorithms, is verified in an extensive simulation campaign using a high fidelity simulator. The simulator is embedded in MATLAB and a features non-linear model of the aircraft dynamics itself and detailed sensor and actuator descriptions.
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Grant, L. G. "Application of State of the Art Simulation Technology to Railway Driver Training." Proceedings of the Institution of Mechanical Engineers, Part D: Transport Engineering 200, no. 3 (1986): 159–65. http://dx.doi.org/10.1243/pime_proc_1986_200_177_02.
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Recent advances in computer and visual system design have made locomotive driver training by simulator a viable proposition. This paper discusses the design objectives of such a simulator and describes recent experience in this area.
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Bulatova, Anastasia E., Denis A. Evsevichev, Oksana V. Maksimova, and Mikhail K. Samokhvalov. "PROGRAM DEVELOPMENT FOR DESIGNING SIMULATORS OF ADVANCED FLIGHT ELECTRONIC SUPPORT SYSTEMS." Автоматизация Процессов Управления 62, no. 4 (2020): 131–39. http://dx.doi.org/10.35752/1991-2927-2020-4-62-131-139.
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The main radio equipment used by aviation specialists are communication, radar and radio navigation systems. Training of students in these areas is a complex task that requires significant efforts of lecturer. The article proposes a concept of simulator designing that are supposed to be adopted in the educational process of civil aviation institutions based on hybrid approach to the virtual simulators designing. Such concept was applied in the development of methodology for designing of simulators for flight electronic support, which involves solving the problem of selective structural synthesis. The problem of selective structural synthesis of design solutions is described using a morphological tree and implies finding the graph edge that ensures meeting a set of rules with the constraints specified in the process of specification drawing up, which is replenished by the developer-user. Due to random nature, the structural optimization method implies a sequential search for possible options. A computer-aided system of simulator designing for flight electronic support systems was developed based on the methodology. The development of a computer-aided system of simulator designing for radio communications, radar and navigation equipment makes it possible to provide effective training of future pilots and air traffic control officers.
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Gao, Yuan, Yin Sun, Chun Hui Zhou, Xin Su, Xi Bin Xu, and Shi Dong Zhou. "Accelerating the 3GPP LTE System Level Simulation with NVidia CUDA." Applied Mechanics and Materials 58-60 (June 2011): 1596–601. http://dx.doi.org/10.4028/www.scientific.net/amm.58-60.1596.
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With the rapid progress of standardization of 3GPP’s LTE (Long Term Evolution) and LTE-Advanced, many research attentions have been focused on the link level evaluations of the 3GPP LTE systems, so as to demonstrate the rationality of novel transmission techniques. Different from theoretical studies, incorporating novel transmission techniques in to the LTE communication systems may affect many parts of the systems, such as signaling process, reference signal design, feedback link design, and compatibility, etc. Link level studies might be too simple to evaluate the benefits of these novel techniques to the entire system. On the other hand, system level simulation concentrates on the performance of the entire network with tens of cells and hundreds to thousands of users. It is possible to illustrate the actual performance of a LTE system by simulations designed from a system standpoint. Since the simulated system is quite large, one can understand the speed of simulation is very important for system level simulation platform. In this paper, we propose a design of Matlab-based 3GPP LTE system level simulator, which makes use of parallel computing techniques supported by NVidia GeForce GTX 260 graphic card. Our simulation experience shows that the simulation time reduces by nearly 1/3 after employing parallel computing techniques.
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Peng, Aoran, John Ostrander, Noriana Radwan, Elizabeth Starkey, Scarlett Miller, and Jason Moore. "Low-Cost Haptic Force Needle Insertion Simulator With Advanced Personalized Learning System." Proceedings of the International Symposium on Human Factors and Ergonomics in Health Care 10, no. 1 (2021): 114–20. http://dx.doi.org/10.1177/2327857921101113.
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Although needle insertion remains a crucial part of medicine practice, there still exists a gap between theoretical knowledge and real-world practice with live patients. To help bridge this gap, the Low-Cost Needle Insertion Simulator, or the LCNIS, is developed to assist students in gaining more confidence through simulated practice. It does so first through its physical design, which include a physical needle insertion device that can give the feeling of puncturing through multiple layers of human flesh. Its user-interface then provides a variety of simulation options as well as performance feedback that can aid in the improvement of student skills. With these key features, the LCNIS hopes to give students a cheap and yet realistic way of practicing needle insertion without the stress and pressure associated with performing on patients. This study hopes to (1) learn about the current needle insertion education as well as gather feedback on the LCNIS prototype, and (2) use this information to construct a more effective user interface for the LCNIS.
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Wippelhauser, András, András Edelmayer, and László Bokor. "A Declarative Application Framework for Evaluating Advanced V2X-Based ADAS Solutions." Applied Sciences 13, no. 3 (2023): 1392. http://dx.doi.org/10.3390/app13031392.
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Application of Vehicular Ad Hoc Networks (VANETs) aims to help in the solution of some problems that have arisen in road transportation systems via short-range, low-latency mobile communication. The application of V2X (Vehicle-to-Everything) communication technologies to the next generation of Advanced Driver Assistance Systems (ADAS) is essential to the extension of the operational design domain (ODD) of the systems to provide safe, secure, and efficient automated driving solutions. Due to the safety-critical nature of the problem, the large-scale testing of V2X enabled ADAS solutions to evaluate and measure the anticipated quality and functionality of the experimental system is of great significance. This article proposes a novel ADAS application prototyping framework, using declarative programming, built on top of the popular Artery/OMNeT++ simulator. The framework is capable of simulating V2X-enabled ADAS applications using accurate network simulation and realistic simulated traffic on real-world maps. The solution features XML descriptions for application specification. The sensor model of Artery is used to provide information to applications. By using the simulator, one can conclude the performance of the applications and discover locations, circumstances and design patterns, where design limits should apply.
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Deshours, Frédérique, Anne-Laure Billabert, Catherine Algani, Fabrice Blache, Christian Rumelhard, and Georges Alquié. "A 40 Gbps electro-absorption modulator integrated laser modeling method for optical transmitter in ultra-wide band radio-over-fiber systems." International Journal of Microwave and Wireless Technologies 1, no. 6 (2009): 511–19. http://dx.doi.org/10.1017/s1759078709990791.
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The great interest of optical fiber links in communicating systems especially in ultra-wide band (UWB) communications has grown up in the last decade and requires co-simulation for mixed circuits design exploiting both optical and microwave domains. In this paper, we report an original modeling method of an electro-absorption modulator associated with a distributed-feedback laser to simulate an optical transmitter of an UWB over fiber system. Large signal optoelectronic device models can be developed and implemented in a high-frequency simulator, such as advanced design system-Ptolemy to analyze the performances of fiber radio links and study the impact of the transmitter characteristics. This specific simulation way, taking into account precisely electrical characteristics of both electrical and optical circuits, links two different frequency domains by coupling electrical and optical modules in the same system simulator. Therefore, a complete simulation of an UWB multi-band orthogonal frequency division multiplexing signal transmission over fiber with an external modulator is investigated.
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Long, Hao, and Yi-Nung Chung. "Design of the Nonlinear Structure Adaptive Model Inversion Flight Control System." Journal of Robotics and Mechatronics 28, no. 6 (2016): 928–35. http://dx.doi.org/10.20965/jrm.2016.p0928.
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[abstFig src='/00280006/17.jpg' width='300' text='Design of the nonlinear SAMI flight control system' ] The advanced aircraft has those technological characteristics: stealth, supersonic cruise, super maneuverability, multi-target attack, multi-role, high load, long range cruise, integrated avionics, short takeoffs and vertical landings. These characteristics need multi-subsystem integration in the advanced aircraft. In order to meet the need of advance aircraft, the nonlinear control system is necessary. In this paper, the nonlinear structure adaptive model inversion system was first used for the nonlinear control problem of super-maneuver aircraft. The sufficient and necessary condition of the control law was analyzed. Finally the results of the height-angle maneuver simulation show that the designed control system has good performance.
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Cheong, B. L., R. D. Palmer, and M. Xue. "A Time Series Weather Radar Simulator Based on High-Resolution Atmospheric Models." Journal of Atmospheric and Oceanic Technology 25, no. 2 (2008): 230–43. http://dx.doi.org/10.1175/2007jtecha923.1.
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Abstract A three-dimensional radar simulator capable of generating simulated raw time series data for a weather radar has been designed and implemented. The characteristics of the radar signals (amplitude, phase) are derived from the atmospheric fields from a high-resolution numerical weather model, although actual measured fields could be used. A field of thousands of scatterers is populated within the field of view of the virtual radar. Reflectivity characteristics of the targets are determined from well-known parameterization schemes. Doppler characteristics are derived by forcing the discrete scatterers to move with the three-dimensional wind field. Conventional moment-generating radar simulators use atmospheric conditions and a set of weighting functions to produce theoretical moment maps, which allow for the study of radar characteristics and limitations given particular configurations. In contrast to these radar simulators, the algorithm presented here is capable of producing sample-to-sample time series data that are collected by a radar system of virtually any design. Thus, this new radar simulator allows for the test and analysis of advanced topics, such as phased array antennas, clutter mitigation schemes, waveform design studies, and spectral-based methods. Limited examples exemplifying the usefulness and flexibility of the simulator will be provided.
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Kim, Nam Hee, Hung Yu Ling, Zhaoming Xie, and Michiel van de Panne. "Flexible Motion Optimization with Modulated Assistive Forces." Proceedings of the ACM on Computer Graphics and Interactive Techniques 4, no. 3 (2021): 1–25. http://dx.doi.org/10.1145/3480144.
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Animated motions should be simple to direct while also being plausible. We present a flexible keyframe-based character animation system that generates plausible simulated motions for both physically-feasible and physically-infeasible motion specifications. We introduce a novel control parameterization, optimizing over internal actions, external assistive-force modulation, and keyframe timing. Our method allows for emergent behaviors between keyframes, does not require advance knowledge of contacts or exact motion timing, supports the creation of physically impossible motions, and allows for near-interactive motion creation. The use of a shooting method allows for the use of any black-box simulator. We present results for a variety of 2D and 3D characters and motions, using sparse and dense keyframes. We compare our control parameterization scheme against other possible approaches for incorporating external assistive forces.
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Li, Yong Xiang, and Jin Hai Zhang. "Research on Mathematical Modeling of Ship Simulation System." Applied Mechanics and Materials 299 (February 2013): 64–67. http://dx.doi.org/10.4028/www.scientific.net/amm.299.64.
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With the rapid development of science and technology, mathematical models more and more present in modern production, work and social activities. Must be established to control the production process of mathematical models, use this model on design and calculation of control devices accordingly in order to achieve effective process control. Ship handling Simulator as an advanced teaching method applied in the teaching and training of crews sailing in China have a long history. By driving simulation of ship navigation, training students to train and ship very similar environment.
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Zahraa Khazal Rashad. "Design and Implementation of Smart Homes Using IoT and Cisco Packet Tracer." International Journal of Scientific Research in Science and Technology 12, no. 2 (2025): 221–30. https://doi.org/10.32628/ijsrst25122215.
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This article explores the implementation of smart homes using the Internet of Things (IoT) through Cisco Packet Tracer 7.0. It discusses the design and configuration of smart networks that integrate home automation, security, and intelligent vision technologies. The article addresses the application of Packet Tracer in the setup and configuration of complex smart networks as part of smart home systems, including appliances, security systems, and intelligent vision technologies. The implementation outcome simulates the concept of smart homes supporting various automation systems and demonstrates Packet Tracer’s feasibility as a powerful tool for designing and installing smart home systems. The Packet Tracer simulator provides a variety of IoT devices that allow for quicker and easier design and implementation of a smart home system before it is implemented in actual environments. It provides the ability to combine wireless networks, sensors, and monitoring or tracking devices for increased system integration and pervasive security and control within home settings. Automation is done effortlessly using pre-defined control rules for all devices that are connected and without the necessity of complex programming skills, making systems safer and more efficient. Such outcomes advance the vision of smart and integrated smart homes, and show how cutting-edge technologies can help make lives better and create a safe and comfortable environment.
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LONGO, FRANCESCO, MARINA MASSEI, and LETIZIA NICOLETTI. "AN APPLICATION OF MODELING AND SIMULATION TO SUPPORT INDUSTRIAL PLANTS DESIGN." International Journal of Modeling, Simulation, and Scientific Computing 03, no. 01 (2012): 1240001. http://dx.doi.org/10.1142/s1793962312400016.
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The focus of the research work presented in this article is the design of an industrial plant devoted to produce different types of hazelnuts-based products. The industrial plant design is initially based on a traditional approach (production process flow charts analysis and plant layout study) and it is then supported by a simulation model mainly used to investigate the system behavior in different operative scenarios. The industrial plant simulation model (called HAZIMUT, HAZelnuts Industrial plant design and management based on advanced simulation Models Utilization) recreates the entire hazelnuts production process (based on nine different production lines). The HAZIMUT simulation model is used to evaluate the effects — caused by multiple changes in the production lines capacities — on multiple performance measures based on machines levels utilization, work in process and production system productivity. The simulation results show how variations in production lines capacities generate an over-reaction of the system with major changes in some of the performance measures therefore stressing the importance to use the HAZIMUT simulator to tune the system correctly to improve the overall plant performances.
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GRANÀ, Anna, Elżbieta MACIOSZEK, and Maria Luisa TUMMINELLO. "SIMULATION-BASED PERFORMANCE EVALUATION FOR SMART ROAD SYSTEMS." Scientific Journal of Silesian University of Technology. Series Transport 127 (June 1, 2025): 87–101. https://doi.org/10.20858/sjsutst.2025.127.6.
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With the growing integration of smart technologies in transportation, the study of roundabout operational efficiency and safety remains a pertinent research area. This paper presents a novel method for evaluating roundabout performance using simulation-based techniques. By analysing two roundabout case studies in Aimsun, the study explores the implications of increasing market penetration of cooperative, connected, and autonomous vehicles on traffic dynamics. The study involves processing geometric and traffic data, categorizing entry lane types, developing benchmark capacity functions, processing micro-simulator input data, and conducting sensitivity analysis for model calibration. The findings advance roundabout design and management in smart road systems and offer insights into the intersection of roundabout research and smart mobility solutions.
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Kuperman, Gilbert G., and Denise L. Wilson. "The Design of a Tactical Situation Display." Proceedings of the Human Factors Society Annual Meeting 32, no. 2 (1988): 111–15. http://dx.doi.org/10.1177/154193128803200224.
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This research and development effort was directed to the design and proof-of-concept demonstration of a dynamic tactical situation display (TSD) applicable to an advanced conceptual bomber crew system. The TSD provides a primary source of mission pacing and situational awareness information in the Strategic Avionics Battle-Management Evaluation and Research (SABER) exploratory development simulator at the Human Engineering Division of the Armstrong Aerospace Medical Research Laboratory. Four levels of situational awareness information are supported by SABER: (1) conventional paper products, (2) digitized (softcopy) versions of these hardcopy materials, (3) dynamic graphic representation of horizontal situation, and (4) horizontal situation display with digital terrain elevation and cultural feature underlay. The TSD described in this paper is being applied in the SABER simulation facility to support research directed to the optimization of the bomber crew system in the context of future mission requirements.
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Radu, Valentin, Diana Dranga, Catalin Dumitrescu, Alina Iuliana Tabirca, and Maria Cristina Stefan. "Generative AI Assertions in UVM-Based System Verilog Functional Verification." Systems 12, no. 10 (2024): 390. http://dx.doi.org/10.3390/systems12100390.
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This paper investigates the potential of leveraging artificial intelligence to automate and optimize the verification process, particularly in generating System Verilog assertions for an Advance Peripheral Bus verification environment using Universal Verification Methodology. Generative artificial intelligence, such as ChatGPT, demonstrated its ability to produce accurate and valuable assertions by employing text-based prompts and image-fed inputs, significantly reducing the required manual effort. This research presents a way of generating System Verilog assertions using the ChatGPT prompt, presenting an image to the Large Language Models, and requesting the assertions needed for the respective protocol. This approach shows the potential for artificial intelligence to revolutionize functional verification by automating complex tasks, ultimately ensuring faster and more reliable System-on-Chip development. The assertions generated by the Large Language Models are integrated into an existing Advance Peripheral Bus verification environment. This process involves running the assertions on a free EDA Playground platform with all three simulators (Cadence Incisive, Mentor Questa, and Synopsys Verilog Compiler Simulator). The main conclusions are that using ChatGPT-4.0 for generating System Verilog assertions significantly reduces the time and effort required for functional verification, demonstrating its potential to enhance efficiency and accuracy in verifying complex System-on-Chip designs.
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Rocha, Elenise Martins, Giancarlo Medeiros Pereira, and Diego Augusto de Jesus Pacheco. "The role of the predictive gamification to increase the sales performance: a novel business approach." Journal of Business & Industrial Marketing 35, no. 5 (2019): 817–33. http://dx.doi.org/10.1108/jbim-01-2019-0005.
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Purpose This paper aims to examine the impact of predictive gamification, through a sales simulator game, as a strategy to minimize sales problems in organizations. Design/methodology/approach This empirical study was executed in a large global company that produces and markets footwear for B2B and B2C markets. The company operates in more than 18 countries and adopts the gamification to train 7,600 sellers and 10,052 professionals directly linked to the sales area. The methodology adopted followed a qualitative and exploratory approach based on an in-depth case study analysis. Findings Results indicated that the use of predictive gamification allowed mitigating future problems, in average, four months in advance of the arrival of the new products at the points of sale. The main findings included improvement in sales arguments, product knowledge and sales closure. The company assigns the results to the implementation of the gamification and the possibility to simulate the evaluation of the level of readiness of the sales force resources. For this, the following three primary variables emerged: adequate definition of training content, analysis of the learning process and simulation of store reality. Research limitations/implications The authors introduced to the sales training literature the concept of predictive gamification. The predictive gamification allows anticipating and reducing future problems before the arrival of the new products in the market, improving the argument of sales, the knowledge about the products and the ratio of sales conversion of stores. Practical implications First, the content design of gamification needs to be carefully projected before the simulator development, considering the target audience and its particularities. Second, the construction of evaluation activities needs to consider contexts, actions and results. Third, monitoring the paths taken by the seller in the simulator environment is requisite. Fourth, the analysis of the results of vendor responses in the simulator environment can be obtained through learning management system reports. Fifth, the development of game simulators with advanced technologies may be done with low investment. Originality/value The findings have implications for the field vis-à-vis three main research gaps identified in the literature discussing gamification in sales training. First, the authors identified best practices from the application of gamification in sales training. Second, they showed the sales qualification processes, which can be improved by applying gamification. Third, they presented strategies of use of gamification as an approach allied to the training of sales professionals to generate enhanced sales results.
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Kazemi, Maryam, Saeedeh Lotfi, Hesam Siahkamari, and Mahmood Mohammadpanah. "UWB Bandpass Filter with Ultra-wide Stopband based on Ring Resonator." Frequenz 72, no. 5-6 (2018): 245–52. http://dx.doi.org/10.1515/freq-2016-0312.
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AbstractAn ultra-wideband (UWB) bandpass filter with ultra-wide stopband based on a rectangular ring resonator is presented. The filter is designed for the operational frequency band from 4.10 GHz to 10.80 GHz with an ultra-wide stopband from 11.23 GHz to 40 GHz. The even and odd equivalent circuits are used to achieve a suitable analysis of the proposed filter performance. To verify the design and analysis, the proposed bandpass filter is simulated using full-wave EM simulator Advanced Design System and fabricated on a 20mil thick Rogers_RO4003 substrate with relative permittivity of 3.38 and a loss tangent of 0.0021. The proposed filter behavior is investigated and simulation results are in good agreement with measurement results.
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AMASAKA, KAKURO. "HIGHLY RELIABLE CAE MODEL, THE KEY TO STRATEGIC DEVELOPMENT OF ADVANCED TDS." Journal of Advanced Manufacturing Systems 06, no. 02 (2007): 159–76. http://dx.doi.org/10.1142/s0219686707000930.
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In recent years, the advanced manufacturing industry is engaging in a "global production strategy — for simultaneous achievement of QCD". A close look at the development designing and production process stage reveals an excessive repetition of "experiment, prototyping, and evaluation" that prevents the "scale-up effect" generated in the bridging stage between prototyping, experiment, evaluation, and mass production. Consequently, what is urgently needed, is innovation to promote the advance from the conventional evaluation-based development, that uses the prototyping and experiment process which had long supported highly reliable designing, to a CAE prediction-based designing process. To accomplish this, a new development designing technique was established, the "Highly Reliable CAE Model. This is the key to strategic promotion of the "Total Integrated Development Design model — Advanced TDS" which utilizes the core element of the "Total Development System, TDS" of "New JIT". In an effort to realize this, the author has proposed the "high quality assurance model for super short period development designing, a "Highly Reliable CAE Numerical Simulation" and demonstrated its effectiveness. As an application example, a simulation technology was developed for molding urethane foam and it was implemented as the "Production of CAE Software for Molding Automotive Seat Pads — Urethane Foam Molding Simulator".
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Carelli, Mario, Lawrence Conway, Milorad Dzodzo, et al. "The SPES3 Experimental Facility Design for the IRIS Reactor Simulation." Science and Technology of Nuclear Installations 2009 (2009): 1–12. http://dx.doi.org/10.1155/2009/579430.
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IRIS is an advanced integral pressurized water reactor, developed by an international consortium led by Westinghouse. The licensing process requires the execution of integral and separate effect tests on a properly scaled reactor simulator for reactor concept, safety system verification, and code assessment. Within the framework of an Italian R&D program on Nuclear Fission, managed by ENEA and supported by the Ministry of Economic Development, the SPES3 facility is under design and will be built and operated at SIET laboratories. SPES3 simulates the primary, secondary, and containment systems of IRIS with 1 : 100 volume scale, full elevation, and prototypical thermal-hydraulic conditions. The simulation of the facility with the RELAP5 code and the execution of the tests will provide a reliable tool for data extrapolation and safety analyses of the final IRIS design. This paper summarises the main design steps of the SPES3 integral test facility, underlying choices and phases that lead to the final design.
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Neha Singh, Mrs. "TANK SIMULATOR." International Scientific Journal of Engineering and Management 04, no. 06 (2025): 1–9. https://doi.org/10.55041/isjem03952.
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Abstract - The Tank Simulator project focuses on the development of a virtual model that accurately replicates the behavior, control, and logistics of a fuel or cargo tanker system. The aim is to simulate real-world operational conditions such as load balancing, fluid dynamics, navigation, and safety protocols in a controlled digital environment. This simulation provides an efficient platform for testing strategies in transportation, distribution, and risk mitigation without the need for physical deployment. Using advanced simulation tools and physics engines, the model replicates: 1. Fluid movement within tanker compartments under various acceleration and deceleration conditions. 2. Navigation and maneuvering dynamics in constrained or open environments. 3. Load management and real-time stability monitoring 4. Emergency handling protocols for leaks, overflows, or fire scenarios. This simulation model serves as a training, planning, and validation tool for engineers, operators, and researchers. It helps optimize design, improve safety measures, and reduce costs associated with physical testing. The Simulation Tanker project is particularly relevant in sectors like oil and gas, logistics, maritime operations, and industrial safety engineering.
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Alfatti, F., C. Annicchiarico, and R. Capitani. "Vehicle stability controller HiL validation on static simulator." IOP Conference Series: Materials Science and Engineering 1214, no. 1 (2022): 012044. http://dx.doi.org/10.1088/1757-899x/1214/1/012044.
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Abstract In the automotive world, Hardware in the Loop (HiL) methodologies are used to speed up the design and calibration process of the various mechatronics components installed on the vehicle. Installing production parts on advanced driving simulator enables the performance assessment in realistic scenarios, including a test driver earlier in the design process. The scope of this work is to evaluate the effect of ABS and ESC system, replicating their influence on the steering wheel. A brake by wire production system has been installed on a static simulator, equipped with a EPSiL steering bench, capable of accurately replicate tie-rod forces on a production steering unit. Full brake, sine steer maneuvers have been carried out both on real vehicle and on virtual environment. The system showed its capabilities of replicating the same functionalities of the real vehicle, extending the static simulator potentialities to support the activities on calibration and test of vehicle systems.
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Yao, Yao, Oliver Carsten, and Daryl Hibberd. "Predicting Compliance with Speed Limits using Speed Limit Credibility Perception and Risk Perception Data." Transportation Research Record: Journal of the Transportation Research Board 2674, no. 9 (2020): 450–61. http://dx.doi.org/10.1177/0361198120929696.
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The link between attitudes and behavior shows that driving behavior can be predicted by personal characteristics and individual attitudes, as has been shown in previous research. This study aimed to predict the level of compliance with speed limits by individual drivers by using attitudes data including speed limit credibility perception and risk perception on eight rural single carriageway layouts. This study investigated how the road layout and roadside environment affect speed limit credibility perception and risk perception, and investigated which machine learning algorithm can be used to predict driving behavior based on experimental evidence. This study was carried out in a well-controlled experimental design by using a questionnaire and a driving simulator. The simulated road environment only considered rural single carriageway which has higher risk factors than other road types. The results show that a boosted decision tree algorithm can establish a driving behavior model based on drivers’ credibility perception and risk perception. This result can be used to predict driving behavior in advance for in-vehicle warning system design.
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Yang, Xuan Huai, Yu Ping Huo, Qing Tian, Xiu E. Zhang, and Feng Gao. "Design and Development of HLA-Based Operation-Maintenance Integration Training Simulation System." Applied Mechanics and Materials 672-674 (October 2014): 1022–26. http://dx.doi.org/10.4028/www.scientific.net/amm.672-674.1022.
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To meet the new training requirement caused by the changing of grid management mode, a training simulation system that fits to the new mode is proposed in this paper. Based on the HLA platform, an integrated simulation framework which could coordinate different simulation modules is designed. Moreover, the key technologies of information exchanging mode, simulation time advance strategy, data filtering strategy and substation OM scene simulation are described, especially focused on the realization. At last, an application is presented, it indicates that the system is more realistic and more suitable for training the operation maintenance staff.
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Liu, Hui, and Li Wen Guan. "Dynamic Modeling of a High-Dynamic Flight Simulator." Applied Mechanics and Materials 687-691 (November 2014): 610–15. http://dx.doi.org/10.4028/www.scientific.net/amm.687-691.610.
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High-dynamic flight simulator (HDFS), using a centrifuge as its motion base, is a machine utilized for simulating the acceleration environment associated with modern advanced tactical aircrafts. This paper models the HDFS as a robotic system with three rotational degrees of freedom. The forward and inverse dynamic formulations are carried out by the recursive Newton-Euler approach. The driving torques acting on the joints are determined on the basis of the inverse dynamic formulation. The formulation has been implemented in two numerical simulation examples, which are used for calculating the maximum torques of actuators and simulating the time-histories of kinematic and dynamic parameters of pure trapezoid Gz-load command profiles, respectively. The simulation results can be applied to the design of the control system. The dynamic modeling approach presented in this paper can also be generalized to some similar devices.
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Jones, Peter H., and David W. Biers. "Relative Contribution of Training and Interface Design to Mental Model Assimilation." Proceedings of the Human Factors Society Annual Meeting 36, no. 4 (1992): 453–57. http://dx.doi.org/10.1177/154193129203600440.
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The purpose of the study was to determine the relative efficacy of training (advance organizers) and interface design in the formation of a mental model of a menu-oriented data base management system. The study employed a 2 × 5 factorial between-subjects design with two levels of Menu Interface (Data vs. Task) and 5 levels of Advance Organizers (None, Functional Job Description, Spatial Menu Map, Data Menu Map, Task Menu Map). Subjects engaged in a series of tasks which simulated the operation of a video store. Results indicated that the task-oriented menu interface resulted in less task completion time, fewer errors, and greater lexical model assimilation than did the data-oriented menu interface. There were no significant differences in these same measures as a function of advance organizer condition (training). This suggests that the actual interface itself may have more to do with the formation of a mental model and that some interface designs lead to better assimilation of the system model than do others. The failure to obtain an effect of advance organizers was attributed to lack of use of the training material, task and interface simplicity, and subject familiarity with the task domain.
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Tomažič, Simon, Igor Škrjanc, Goran Andonovski, and Vito Logar. "The Development of Simulation and Optimisation Tools with an Intuitive User Interface to Improve the Operation of Electric Arc Furnaces." Machines 12, no. 8 (2024): 508. http://dx.doi.org/10.3390/machines12080508.
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The paper presents a novel decision support system designed to improve the efficiency and effectiveness of decision-making for electric arc furnace (EAF) operators. The system integrates two primary tools: the EAF Simulator, which is based on advanced mechanistic models, and the EAF Optimiser, which uses data-driven models trained on historical data. These tools enable the simulation and optimisation of furnace settings in real time and provide operators with important insights. A key objective was to develop a user-friendly interface with the Siemens Insights Hub Cloud Service and Node-RED that enables interactive management and support. The interface allows operators to analyse and compare past and simulated batches by adjusting the input data and parameters, resulting in improved optimisation and reduced costs. In addition, the system focuses on the collection and pre-processing of input data for the simulator and optimiser and uses Message Queuing Telemetry Transport (MQTT)communication between the user interfaces and models to ensure seamless data exchange. The EAF Simulator uses a comprehensive mathematical model to simulate the complex dynamics of heat and mass transfer, while the EAF Optimiser uses a fuzzy logic-based approach to predict optimal energy consumption. The integration with Siemens Edge Streaming Analytics ensures robust data collection and real-time responsiveness. The dual-interface design improves user accessibility and operational flexibility. This system has significant potential to reduce energy consumption by up to 10% and melting times by up to 15%, improving the efficiency and sustainability of the entire process.
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Sanquist, Thomas F., and Yushi Fujita. "Protocol Analysis and Action Classification in the Evaluation of an Advanced Annunciator System Design." Proceedings of the Human Factors Society Annual Meeting 33, no. 16 (1989): 1064–67. http://dx.doi.org/10.1177/154193128903301606.
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The use of protocol analysis and behavioral classification for evaluating advanced display concepts is described. Three experienced nuclear power plant operators solved problems in a full-scale simulator which employed an alarm suppression logic in the annunciator display. Verbal protocols and behavioral actions were collected as operators solved the problems, and were compared with protocols in which the alarm suppression logic was not used. The results indicated that more observations of discrete values and more control actions were made in the condition employing the alarm suppression scheme, suggesting more effective diagnosis and control with this type of man-machine interface.
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Zhang, Zijian, and Yangyang Dong. "Safety Ensurence Research on the Regenerative Braking System of Electric Vehicle." International Journal of Pattern Recognition and Artificial Intelligence 33, no. 04 (2019): 1959014. http://dx.doi.org/10.1142/s0218001419590146.
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The safety problem is the primary factor that should be viewed in the regenerative braking system design of vehicles. To ensure braking safety and battery safety of the electrical vehicles (EVs) a regenerative braking system contain us two fuzzy logic controllers is designed in the paper. In the system, one controller includes slip coefficient, vehicle speed and the driver’s brake requirement to ensure braking security and the other takes battery State of Charge (SOC) and temperature as inputs to assure battery safety. Then, two proportional coefficients [Formula: see text] and [Formula: see text] satisfying the safety needs are introduced into the braking system. At last, the simulation model is established in the simulation software-ADVISOR (ADvanced VehIcle SimulatOR). Through simulation, the results verify that more energy can be regenerated from braking under the conditions of ensuring braking and batteries safety.
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Narne, Rajendraprasad, and P. C. Panda. "PSS with SVC Damping Controllers Coordinated Design and Real-Time Implementation in Multi-Machine Power System Using Advanced Adaptive PSO." International Journal of Emerging Electric Power Systems 14, no. 5 (2013): 487–98. http://dx.doi.org/10.1515/ijeeps-2013-0049.
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Abstract This article proposed coordinated tuning and real-time implementation of power system stabilizer (PSS) with static var compensator (SVC) in multi-machine power system. The design of proposed coordinated damping controller is formulated as an optimization problem, and the controller gains are optimized instantaneously using advanced adaptive particle swarm optimization. Here, PSS with SVC installed in multi-machine system is examined. The coordinated tuning among the damping controllers is performed on the non-linear power system dynamic model. Finally, the proposed coordinated controller performance is discussed with time-domain simulations. Different loading conditions are employed on the test system to test the robustness of proposed coordinate controller, and the simulation results are compared with four different control schemes. To validate the proposed controller, the test power system is also implemented on real-time (OPAL-RT) simulator, and acceptable results are reported for its verifications.
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Li, Jun Hua, Hong Wei Quan, and Xiu Yin Xue. "Analysis and Design of Simulation System for Passive Acoustic Senor Network." Applied Mechanics and Materials 533 (February 2014): 214–17. http://dx.doi.org/10.4028/www.scientific.net/amm.533.214.
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The simulation system for passive acoustic sensor network is an important part of information fusion system. Its main function is to simulate the detection process of acoustic sensor network and produce the simulation data which is needed for testing and evaluating the target tracking algorithms. For implementation of simulation system, the target motion model and the measurement model of passive acoustic sensor must be built, and a scenario will be defined in advance when it is running. This paper discussed the passive acoustic sensor network model and gave an information fusion system structure for passive acoustic sensor network. Then the basic principle of target detection for acoustic sensor is stated. Finally, we illustrated the operation process of a simulation system for passive acoustic sensor network.
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Baek, Seung-Mook, Suchul Nam, Jiyoung Song, Jaegul Lee, Taekyun Kim, and Jeonghoon Shin. "Design of Advanced Voltage Management System Including Manual Operation Mode via Real-Time Digital Simulator." IEEE Transactions on Industry Applications 49, no. 4 (2013): 1817–26. http://dx.doi.org/10.1109/tia.2013.2257971.
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Chen, Cui, Xi Ping Xu, Li Xin Li, Yi Guo Ji, Shu Chen Xiao, and Tian Zhao. "Design and Research of Hardware-in-the Loop Platform of Infrared Seeker Based on Lab-VIEW." Advanced Materials Research 926-930 (May 2014): 3497–500. http://dx.doi.org/10.4028/www.scientific.net/amr.926-930.3497.
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With the development of infrared missile guidance system fleetly, the simulation plays more and more important role in the integrated testing of infrared missile guidance system, because it is a key technology to shorten manufacture period and to advance efficiency-cost ratio. This paper designs hardware-in-the-loop simulation platform of infrared guidance system, including: the simulation modeling of kinematics equation of characteristics, the generation technology of target background and antagonistic, the key technology design of hardware and software are researched thoroughly about signal resting, their constructions are discussed in detail.
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Xiong, Zhuang, Hua Wen Zhou, and Jia Yue Ren. "The Design and Application of Aircraft Flight Stimulation and Visualization Based on HLA." Applied Mechanics and Materials 543-547 (March 2014): 3472–75. http://dx.doi.org/10.4028/www.scientific.net/amm.543-547.3472.
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Aircraft training simulator has integrated combat training ability not only needs to simulate the aircraft flight and radar, inertial navigation and avionics equipment, but also to generate realistic battlefield environment and visual effects, and to simulate the interaction between the system and the complex interaction. In the realization of the simulator, using HLA/RTI as its architecture and the supporting platform, make the device emulator is to achieve interoperability, can improve the system's flexibility and scalability. [ The target and the electromagnetic reflection characteristics of ground data and radar detection model based on the dynamic radar image generation. The blackboard model is based on the virtual machine technology, which is easy to modify and evolution of CGF system. [Combat aircraft is the main weapon platform in modern war, and aircrew training level is an important factor which affects the combat effectiveness of an aircraft. Research on the domestic and abroad aircrew training methods and training methods with simulate system, develops advanced technology, which can achieve close to actual combat to training effect and save a lot of training funds.
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Li, Jianying, Lingbing Kong, Heng Liang, Weidong Li, and Saad Aldosary. "Enhancing Electro-Hydraulic Load Simulator Performance Through Variable Arm Length and Particle Swarm-Optimized Controllers." Journal of Nanoelectronics and Optoelectronics 18, no. 9 (2023): 1085–99. http://dx.doi.org/10.1166/jno.2023.3490.
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This study presents a novel approach to improve the loading characteristics of an electro-hydraulic load simulator by introducing a variable arm length mechanism and employing advanced control strategies rooted in Particle Swarm Optimization (PSO). The design enhancements focus on optimizing the physical connection between the steering gear system and the load system, resulting in an electro-hydraulic load simulator equipped with adjustable arm length. Through a meticulous analysis of the ideal pivot position for the rocker lever, a fuzzy Proportional-Integral-Derivative (PID) controller based on PSO has been developed for the steering gear system. In recognition of the PSO algorithm’s susceptibility to local optima convergence, a fuzzy PID controller employing Single-Particle Random Search (SSPSO) has also been devised for the load system. To assess the effectiveness of this innovative hardware configuration and controller implementation in mitigating over-suppression, comprehensive joint simulation experiments were conducted. The results unequivocally indicate that the incorporation of the variable arm length structure, along with the PSO-based fuzzy PID controller optimized using binding factors, substantially enhances the dynamic loading performance of the electro-hydraulic load simulator. This enhancement translates into superior loading accuracy and overall performance metrics, establishing this research as a valuable reference for future investigations in this field.
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Shantona, Shanjida, Pran Kanai Saha, and Md. Tawfiq Amin. "Design and Analysis of Impulse Radio (IR) Based UWB Transmitter with Antenna." MIST INTERNATIONAL JOURNAL OF SCIENCE AND TECHNOLOGY 10 (December 29, 2022): 01–09. http://dx.doi.org/10.47981/j.mijst.10(03)2022.337(01-09).
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The use of ultra-wideband (UWB) in target detection, radar and wireless connectivity, specifically in the medical world, has attracted a lot of attention. The concept that the IR-UWB system does not necessarily require carrier signals is one of its most appealing features. IR-UWB can transmit information using short Gaussian monocycle pulses. In light of these advantages, this paper proposes a novel UWB transmitter system which consists of UWB signal generating circuits and UWB antenna, which work together to create entire UWB transmitter. It is based on impulses and has a simple architecture with low power consumption. The proposed transmitter is realized in Cadence tools with 90nm CMOS technology and proposed UWB antenna is simulated using Advanced Design System (ADS) simulator software. In addition, the transmitter circuit and the antenna are co-simulated using ADS software. The illustrated UWB transmitter uses a low-power supply and generates pulse amplitude with pulse duration of for the Gaussian monocycle pulse. Due to its increased output voltage swing and reduced power consumption when comparing to other circuits, the proposed architecture is functional and suitable for use in short-range wireless networks and medical applications.
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Mohammed, BENDAOUD, KAMECHE Samir, and OUSLIMANI Achour. "The dynamics analysis of the two-stage chaotic Colpitts oscillator for secure communication systems." All Sciences Abstracts 1, no. 1 (2023): 2. http://dx.doi.org/10.59287/as-abstracts.531.
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This abstract presents a novel study of the two-stage chaotic Colpitts oscillator which is intended to secure communication systems. This study is divided into two important parts, the first one is to solve the mathematical model of the studied chaotic oscillator under Matlab simulator using the fourth-order Runge-Kutta method, where the results show that this model goes through many different behaviors to reach the chaotic one (doubling of periods), which is obtained in the case where the value of g is greater than 1.5. The second part of this work consists on the simulation of the oscillator circuit under Advanced Design System simulator adopting the BFG520 bipolar junction transistor, and this is for the purpose of verifying the obtained mathematical results, as well as to study the frequency properties of this circuit. Based on the results of this electrical simulation, it has been demonstrated that the two-stage Colpitts oscillator is capable to generate chaotic oscillations in the range of (0.9 to 5.6 GHz).