Search results for: Eduardo Tovar

Items from 1 to 20 out of 76 results

article

All‐around management of a fungal isolate obtained from cheese spoilage as an environmental source: Direct approach from an undergrad student to a biotechnological characterization

Eugenia Guadalupe Ortiz Lechuga, Omar Eduardo Tovar Herrera, Katiushka Arévalo Niño

Biochemistry and Molecular Biology Education > 47 > 6 > 681 - 688

In this work, we present the results of an undergrad student from the perspective of its first approach as a principal researcher in a project. In order to gain practical experience, one of the options for students that have interest in pursuing a postgraduate program corresponds to a research stay in a laboratory of their selected field conducting a project for a period of 6 months. In this particular...

article

Uneven memory regulation for scheduling IMA applications on multi-core platforms

Muhammad Ali Awan, Pedro F. Souto, Benny Akesson, Konstantinos Bletsas, more

Real-Time Systems > 2019 > 55 > 2 > 248-292

The adoption of multi-cores for mixed-criticality systems has fueled research on techniques for providing scheduling isolation guarantees to applications of different criticalities. These are especially hard to provide in the presence of contention in shared resources of the system, such as buses and DRAMs. The state-of-the-art Single-Core Equivalence (SCE) framework improves timing isolation by enforcing...

article

Active flow control using dense wireless sensor and actuator networks

Ramiro Sámano, Julio Viana, Nelson Ferreira, João Loureiro, more

Microprocessors and Microsystems > 2018 > 61 > C > 279-295

This paper describes the design of an active flow control (AFC) system for aeronautics applications based on dense wireless sensor and actuator networks (WSANs). The objective of this AFC system is to track gradients of pressure (or wall shear stress) across the surface of the fuselage of commercial aircraft. This collected information is used to activate a set of actuators that will attempt to reduce...

article

An industrial view on the common academic understanding of mixed-criticality systems

Alexandre Esper, Geoffrey Nelissen, Vincent Nélis, Eduardo Tovar

Real-Time Systems > 2018 > 54 > 3 > 745-795

With the rapid evolution of commercial hardware platforms, in most application domains, the industry has shown a growing interest in integrating and running independently-developed applications of different “criticalities” in the same multi-core platform, with the objective of improving the performance/cost ratio of the system. Such integrated systems are commonly referred to as mixed-criticality...

chapter

Formal Verification of AADL Models Using UPPAAL

Fernando Silvano Goncalves, David Pereira, Eduardo Tovar, Leandro Buss Becker

2017 VII Brazilian Symposium on Computing Systems Engineering (SBESC) > 117 - 124

2017 VII Brazilian Symposium on Computing Systems Engineering (SBESC)

Cyber-Physical Systems (CPS) are known to be highly complex systems which can be applied to a variety of different environments, covering both civil and military application domains. As CPS are typically complex systems, its design process requires strong guarantees that the specified functional and non-functional properties are satisfied on the designed application. Model-Driven Engineering (MDE)...

article

Dual mode for vehicular platoon safety: Simulation and formal verification

Oussama Karoui, Mohamed Khalgui, Anis Koubâa, Emna Guerfala, more

Information Sciences > 2017 > 402 > C > 216-232

In order to cope with uncertainties in a platoon, this paper proposes a reconfigurable multi-agent architecture to address the platoon safety problem by handling two modes: the normal mode and the degraded mode. At this stage of research, the normal mode is characterized by the interaction between agents over a Vehicle-to-Vehicle (V2V) communication network while the degraded mode simply involves...

article

Guest editorial: special issue on embedded and real-time computing systems and applications

Chang-Gun Lee, Eduardo Tovar, Chenyang Lu

Real-Time Systems > 2017 > 53 > 6 > 855-856

chapter

Real-time dense wired sensor network based on traffic shaping

Joao Loureiro, Raghuraman Rangarajan, Borislav Nikolic, Leandro Indrusiak, more

2017 IEEE 23rd International Conference on Embedded and Real-Time Computing Systems and Applications (RTCSA) > 1 - 10

2017 IEEE 23rd International Conference on Embedded and Real-Time Computing Systems and Applications (RTCSA)

XDense is a novel wired 2D-mesh grid sensor network system for application scenarios that benefit from densely deployed sensing (e.g. thousands of sensors per square meter). It was conceived for closed-loop cyber-physical systems (CPS) that require real-time actuation, like active flow control (AFC) on aircraft wing surfaces. XDense communication and distributed processing capabilities are designed...

article

Simple screening protocol for identification of potential mycoremediation tools for the elimination of polycyclic aromatic hydrocarbons and phenols from hyperalkalophile industrial effluents

Ramón Alberto Batista-García, Vaidyanathan Vinoth Kumar, Arielle Ariste, Omar Eduardo Tovar-Herrera, more

Journal of Environmental Management > 2017 > 198 > P2 > 1-11

A number of fungal strains belonging to the ascomycota, basidiomycota and zygomycota genera were subjected to an in vitro screening regime to assess their ligninolytic activity potential, with a view to their potential use in mycoremediation-based strategies to remove phenolic compounds and polycyclic aromatic hydrocarbons (PAHs) from industrial wastewaters. All six basidiomycetes completely decolorized...

chapter

PELE: Power efficient legitimate eavesdropping via jamming in UAV communications

Xiaoming Wang, Kai Li, Salil S. Kanhere, Demin Li, more

2017 13th International Wireless Communications and Mobile Computing Conference (IWCMC) > 402 - 408

2017 13th International Wireless Communications and Mobile Computing Conference (IWCMC)

We consider a wireless information surveillance in UAV network, where a legitimate unmanned aerial vehicle (UAV) proactively eavesdrops communication between two suspicious UAVs. However, challenges arise due to lossy airborne channels and limited power of the UAV. In this paper, we study an emerging legitimate eavesdropping paradigm that the legitimate UAV improves the eavesdropping performance via...

chapter

Worst-case bound analysis for the time-critical MAC behaviors of IEEE 802.15.4e

Harrison Kurunathan, Ricardo Severino, Anis Koubaa, Eduardo Tovar

2017 IEEE 13th International Workshop on Factory Communication Systems (WFCS) > 1 - 9

2017 IEEE 13th International Workshop on Factory Communication Systems (WFCS)

With an advancement towards the paradigm of Internet of Things (IoT), in which every device will be interconnected and communicating with each other, the field of wireless sensor networks has helped to resolve an ever-growing demand in meeting deadlines and reducing power consumption. Among several standards that provide support for IoT, the recently published IEEE 802.15.4e protocol is specifically...

article

Distribution, genetic diversity and potential spatiotemporal scale of alien gene flow in crop wild relatives of rice (Oryza spp.) in Colombia

Evert Thomas, Eduardo Tovar, Carolina Villafañe, José Leonardo Bocanegra, more

Rice > 2017 > 10 > 1 > 1-16

Background Crop wild relatives (CWRs) of rice hold important traits that can contribute to enhancing the ability of cultivated rice (Oryza sativa and O. glaberrima) to produce higher yields, cope with the effects of climate change, and resist attacks of pests and diseases, among others. However, the genetic resources of these species remain dramatically understudied, putting at risk their future availability...

chapter

A service-oriented Cloud-based management system for the Internet-of-Drones

Anis Koubaa, Basit Qureshi, Mohamed-Foued Sriti, Yasir Javed, more

2017 IEEE International Conference on Autonomous Robot Systems and Competitions (ICARSC) > 329 - 335

2017 IEEE International Conference on Autonomous Robot Systems and Competitions (ICARSC)

Deploying drones over the Cloud is an emerging research area motivated by the emergence of Cloud Robotics and the Internet-of-Drones (IoD) paradigms. This paper contributes to IoD and to the deployment of drones over the cloud. It presents, Dronemap Planner, an innovative service-oriented cloud based drone management system that provides access to drones through web services (SOAP and REST), schedule...

chapter

Integrating the calculation of preemption and persistence related cache overhead

Syed Aftab Rashid, Geoffrey Nelissen, Eduardo Tovar

2016 IEEE Real-Time Systems Symposium (RTSS) > 366

2016 IEEE Real-Time Systems Symposium (RTSS)

chapter

Network diversity multiple access in Rayleigh fading correlated channels with imperfect channel and collision multiplicity estimation

Ramiro Robles, Eduardo Tovar, Mauricio Lara, Aldo Orozco, more

2016 24th Telecommunications Forum (TELFOR) > 1 - 4

2016 24th Telecommunications Forum (TELFOR)

Network diversity multiple access or NDMA is the family of algorithms with the highest potential throughput in the literature of signal-processing-assisted random access. NDMA uses the concept of protocol-induced retransmissions to create an adaptive source of physical (PHY) layer diversity. This adaptive diversity is used to resolve packet collisions (via signal separation) without the explicit need...

article

Cyber-physical systems clouds: A survey

Rihab Chaâri, Fatma Ellouze, Anis Koubâa, Basit Qureshi, more

Computer Networks > 2016 > 108 > C > 260-278

Cyber-Physical Systems (CPSs) represent systems where computations are tightly coupled with the physical world, meaning that physical data is the core component that drives computation. Industrial automation systems, wireless sensor networks, mobile robots and vehicular networks are just a sample of cyber-physical systems. Typically, CPSs have limited computation and storage capabilities due to their...

chapter

Active flow control for aerospace operations by means of a dense wireless sensor and actuator network

Ramiro Samano-Robles, Joao Loureiro, Eduardo Tovar, Julio Viana, more

2016 IEEE 21st International Conference on Emerging Technologies and Factory Automation (ETFA) > 1 - 4

2016 IEEE 21st International Conference on Emerging Technologies and Factory Automation (ETFA)

This paper presents the design of an active flow control (AFC) system for commercial aircraft based on a dense wired/wireless sensor and actuator network. The goal is to track gradients of pressure across the surface of the fuselage of commercial aircraft. This collected information will be used to activate a set of actuators that will attempt to reduce the skin drag effect produced by the separation...

chapter

The DEWI high-level architecture: Wireless sensor networks in industrial applications

Ramiro Samano-Robles, Tomas Nordstrom, Salvador Santonja, Werner Rom, more

2016 Eleventh International Conference on Digital Information Management (ICDIM) > 274 - 280

2016 Eleventh International Conference on Digital Information Management (ICDIM)

This paper presents the high-level architecture (HLA) of the research project DEWI (dependable embedded wireless infrastructure). The objective of this HLA is to serve as a reference for the development of industrial wireless sensor and actuator networks (WSANs) based on the concept of the DEWI Bubble. The DEWI Bubble is defined here as a high-level abstraction of an industrial WSAN with enhanced...

chapter

Wireless avionics intra-communications: Current trends and design issues

Ramiro Samano-Robles, Eduardo Tovar, Joao Cintra, Andre Rocha

2016 Eleventh International Conference on Digital Information Management (ICDIM) > 266 - 273

2016 Eleventh International Conference on Digital Information Management (ICDIM)

Wireless technology is expanding to areas previously reluctant to the use of this type of technology. In the aeronautics industry, wireless has recently gained preference for on-board systems that conventionally used only cables. Recent interference and reliability studies with state-of-the-art standards suggest the feasibility of a relatively new research area that has been called wireless avionics...

article

A Pycnoporus sanguineus laccase for denim bleaching and its comparison with an enzymatic commercial formulation

María Magdalena Iracheta-Cárdenas, Mario A. Rocha-Peña, Luis J. Galán-Wong, Katiushka Arévalo-Niño, more

Journal of Environmental Management > 2016 > 177 > C > 93-100

A laccase from the basidiomycete Pycnoporus sanguineus strain RVAN5 was evaluated for its ability to decolorize synthetic dyes and denim bleaching. Dye color reduction and denim bleaching were monitored at different dye concentrations and incubation times. Dye decolorization by Pycnoporus sanguineus fungal crude extract (FCE) ranged from 80 to 96% within 2–4 h at 25–65 °C. Comparable results were...

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INFONA - science communication portal

Search results for: Eduardo Tovar

All‐around management of a fungal isolate obtained from cheese spoilage as an environmental source: Direct approach from an undergrad student to a biotechnological characterization

Uneven memory regulation for scheduling IMA applications on multi-core platforms

Active flow control using dense wireless sensor and actuator networks

An industrial view on the common academic understanding of mixed-criticality systems

Formal Verification of AADL Models Using UPPAAL

Dual mode for vehicular platoon safety: Simulation and formal verification

Guest editorial: special issue on embedded and real-time computing systems and applications

Real-time dense wired sensor network based on traffic shaping

Simple screening protocol for identification of potential mycoremediation tools for the elimination of polycyclic aromatic hydrocarbons and phenols from hyperalkalophile industrial effluents

PELE: Power efficient legitimate eavesdropping via jamming in UAV communications

Worst-case bound analysis for the time-critical MAC behaviors of IEEE 802.15.4e

Distribution, genetic diversity and potential spatiotemporal scale of alien gene flow in crop wild relatives of rice (Oryza spp.) in Colombia

A service-oriented Cloud-based management system for the Internet-of-Drones

Integrating the calculation of preemption and persistence related cache overhead

Network diversity multiple access in Rayleigh fading correlated channels with imperfect channel and collision multiplicity estimation

Cyber-physical systems clouds: A survey

Active flow control for aerospace operations by means of a dense wireless sensor and actuator network

The DEWI high-level architecture: Wireless sensor networks in industrial applications

Wireless avionics intra-communications: Current trends and design issues

A Pycnoporus sanguineus laccase for denim bleaching and its comparison with an enzymatic commercial formulation

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