Search results for "ComputerApplications_COMPUTERSINOTHERSYSTEMS"

showing 10 items of 254 documents

Adaptive Control of a Gas Turbine Engine for Axial Compressor Faults

1996

An adaptive control system for a gas turbine engine which diagnoses conditions of axial compressor faults is proposed and analyzed. Nonlinear models of the gas turbine, neural networks and genetic algorithms are used in this research. The adaptive control system minimizes the reduction in gas turbine performance deriving from non-destructive faults. In the absence of faults, the system automatically performs the optimization of the engine between overhauls. Improvements concern the definition of adaptive control with faults in progress, and the real-time optimization of the engine during its operative life between overhauls. Simulation results of the suggested control system are also discus…

Gas turbinesNonlinear systemEngineeringAdaptive controlAxial compressorArtificial neural networkbusiness.industryControl theoryControl systemComputerApplications_COMPUTERSINOTHERSYSTEMSbusinessReduction (mathematics)Gas compressorVolume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; General
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A Realistic Model to Support Rescue Operations After an Earthquake via UAVs

2022

In this paper, we consider the problem of completely flying over an area just hit by an earthquake with a fleet of Unmanned Aerial Vehicles (UAVs) to opportunely direct rescue teams. The cooperation between UAVs ensures that the search for possible survivors can be faster and more effective than the solutions currently implemented by civil protection. To study this scenario, we introduce the Cover by Multitrips with Priorities (CMP) problem, which tries to keep into account all the main real-life issues connected to the flight and coordination of the UAVs. We conduct a theoretical study to estimate the best number of UAVs and additional batteries, to give indications to the organization tha…

General Computer ScienceUnmanned aerial vehicle networksUAV routing problemGeneral EngineeringBattery-aware cycle covering; UAV routing problem; Unmanned aerial vehicle networksGeneral Materials ScienceComputerApplications_COMPUTERSINOTHERSYSTEMSElectrical engineering. Electronics. Nuclear engineeringSettore MAT/09 - Ricerca OperativaElectrical and Electronic Engineeringbattery-aware cycle coveringTK1-9971IEEE Access
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Joint Resource Allocation and UAV Scheduling With Ground Radio Station Sleeping

2021

Applications of Unmanned aerial vehicles (UAVs) have advanced rapidly in recent years. The UAVs are used for a variety of applications, including surveillance, disaster management, precision agriculture, weather forecasting, etc. In near future, the growing number of UAV applications would necessitate densification of UAV infrastructure (ground radio station (GRS) and ground control station (GCS)) at the expense of increased energy consumption for UAV communications. Maximizing the energy efficiency of this UAV infrastructure is important. Motivated by this, we propose joint resource allocation and UAV scheduling with GRS sleeping (GRSS). Further, we propose the use of coordinated multi-poi…

General Computer Scienceground control station (GCS)Computer sciencebusiness.industryground radio station sleeping (GRSS)Real-time computingGeneral EngineeringComputerApplications_COMPUTERSINOTHERSYSTEMSGround control stationThroughputEnergy consumptionnon-orthogonal multiple access (NOMA)TK1-9971Scheduling (computing)VDP::Teknologi: 500unmanned aerial vehicle (UAV)Coordinated multi-point (CoMP)Resource allocationGeneral Materials ScienceResource managementElectrical engineering. Electronics. Nuclear engineeringbusinessRadio broadcastingEfficient energy useIEEE Access
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A general framework for collecting and analysing the tracking data of cruise passengers at the destination

2016

Cruise passengers’ behaviour at the destination is a rather poorly investigated phenomenon. The single exit/entry point and the relatively brief visiting time, which characterize cruise passengers’ experience at their destinations, make the use of GPS technology particularly suitable for the analysis of such a relevant phenomenon. The aim of this research is to propose a general framework for collecting and analysing GPS tracking data relating to cruise passengers’ behaviour at their destination. The main prerequisites and research stages for the implementation of surveys on cruise passengers will be described and a set of tools and measures for the analysis of GPS tracking data will be pro…

GeneralLiterature_INTRODUCTORYANDSURVEYComputer scienceGeography Planning and DevelopmentCruisesurvey methodComputerApplications_COMPUTERSINOTHERSYSTEMSDestinationsSet (abstract data type)Transport engineeringSurvey methodology0502 economics and businessTracking datacruise tourismSettore SECS-S/05 - Statistica SocialeConsumer behaviourbusiness.industry05 social sciencesAdvertisingEntry pointGPS tracking dataTourism Leisure and Hospitality ManagementComputerApplications_GENERALGlobal Positioning System050211 marketingspatial analysibusinesstourist mobility050212 sport leisure & tourismCurrent Issues in Tourism
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Creating Value – From Corporate Governance to Total Shareholders Return. An Overview

2016

Abstract The term “value” can be interpreted in a subjective way, depending about what we refer at. Usually the firm's value is related to the financial performance: profitability, cash flow, liquidity, solvability, etc. A corporation can create and in some cases reduce value for its stakeholders. Also, a corporation can create value for the stakeholders by simply creating jobs, paying taxes and help the population to improve their financial situation. The aim of the paper is to describe the process of value creation starting with corporate governance, continuing with stakeholders’ expectations and finishing with shareholders requests.

HF5001-6182Social Psychologyvalue creationcorporate governanceEconomics Econometrics and Finance (miscellaneous)Populationtotal shareholders returnComputerApplications_COMPUTERSINOTHERSYSTEMSAccountingEconomic Value AddedstakeholdersShareholder0502 economics and businessBusinesseducationFinanceeducation.field_of_studybusiness.industryCorporate governance05 social sciencesBusiness Management and Accounting (miscellaneous)050211 marketingProfitability indexCash flowBusinessCorporate communicationValue (mathematics)050203 business & managementStudies in Business and Economics
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Hazards That Can Affect CNC Machine Tools during Operation—An AHP Approach

2020

CNC (computer numerically controlled) machine tools are highly advanced technological systems, used to machine parts by means of metal cutting processes. Their structure and kinematics are very complex, involving accurate coordinated motions on three to five axes. Operating CNC machine tools is a complicated process, which can easily be affected by errors. Nowadays, safety systems and devices are developed in order to make this process safer and more user friendly. Modern CNC controllers are designed to deal with obvious sources of hazards, such as overloads (by means of various sensor systems) and collisions (by checking the NC code syntax and simulating it on the machine). However, despit…

Hazard (logic)0209 industrial biotechnologyinaccurate setuplcsh:Industrial safety. Industrial accident preventionbusiness.product_categoryProcess (engineering)Computer scienceanalytic hierarchy process (AHP)Analytic hierarchy processSystem safetyComputerApplications_COMPUTERSINOTHERSYSTEMS02 engineering and technology03 medical and health sciences020901 industrial engineering & automation0302 clinical medicineMachininglcsh:T55-55.3Safety Risk Reliability and Qualitymachine toolslcsh:R5-920User FriendlyPublic Health Environmental and Occupational Healthsimulation030210 environmental & occupational healthReliability engineeringMachine tooloperationNumerical controlcomputer numerical control (CNC)lcsh:Medicine (General)businessSafety ResearchhazardsSafety
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Impact of portable device restrictions on IEEE 802.16 performance

2008

IEEE 802.16 is a good alternative for fast wireless connection in the next generation portable information devices (PID). However it was not originally designed for portable devices, but mobility was added later to the specification. This means that the lack of resources on portable devices might have a significant impact on which IEEE 802.16 features should be chosen and how they should be used. Proper usage of ARQ can increase the IEEE 802.16 performance but it can also require much resources from PIDs. In this paper we focus on how ARQ features are affected by limited resources on PID and how much the limitations affect on the performance.

IEEE 802business.industryWireless networkComputer scienceBroadband networksAutomatic repeat requestComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKSComputerApplications_COMPUTERSINOTHERSYSTEMSWiMAXBase stationEmbedded systemWirelessMobile telephonybusinessComputer networkPORTABLE-POLYTRONIC 2008 - 2nd IEEE International Interdisciplinary Conference on Portable Information Devices and the 2008 7th IEEE Conference on Polymers and Adhesives in Microelectronics and Photonics
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"Table 7" of "Studies of QCD in e+ e- --> hadrons at E(cm) = 130-GeV and 136-GeV."

2000

Distribution of Thrust.

InclusiveSingle Differential Cross SectionComputingMethodologies_SIMULATIONANDMODELINGDSIG/DTHRUSTE+ E- ScatteringComputingMilieux_COMPUTERSANDEDUCATIONComputerApplications_COMPUTERSINOTHERSYSTEMSE+ E- --> CHARGED XComputerSystemsOrganization_PROCESSORARCHITECTURES300.0
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Robot Retrofitting by Using LinuxCNC Complemented with Arduino/RaspberryPI

2020

The use of robots for any manufacturing process is present in almost every industry nowadays. Nevertheless, automating the manufacturing process has always been a challenge for every one of them due to costs and complexity of adding this kind of automation. Acquiring robotic equipment in a concentrated market where the vendors have locked-in their clients can be expensive. In addition to this, the development of intern-factory made solutions has a very steep learning curve and it is not easily achievable. Due to these barriers small and medium size players can’t easily jump into this revolution.

Industry 4.0business.industryComputer scienceLearning curveArduinoJumpLinuxCNCRetrofittingRobotComputerApplications_COMPUTERSINOTHERSYSTEMSbusinessAutomationManufacturing engineering
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Towards semantic-based RSS merging

2009

Merging information can be of key importance in several XML-based applications. For instance, merging the RSS news from different sources and providers can be beneficial for end-users (journalists, economists, etc.) in various scenarios. In this work, we address this issue and mainly explore the relatedness relationships between RSS entities/ elements. To validate our approach, we also provide a set of experimental tests showing satisfactory results. © 2009 Springer-Verlag Berlin Heidelberg

Information retrievalComputer sciencecomputer.internet_protocolRSSINF/01 - INFORMATICAComputerApplications_COMPUTERSINOTHERSYSTEMScomputer.file_formatSet (abstract data type)Semantic similarityArtificial IntelligenceKey (cryptography)Document Object ModelcomputerXML
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