To investigate the complex dynamics and chaos control in airlines' price competition, the dynamic price competition model of airlines with duopoly is established by using the theory of bifurcation of dynamical sys...
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ISBN:
(纸本)9781479915064;9781479915088
To investigate the complex dynamics and chaos control in airlines' price competition, the dynamic price competition model of airlines with duopoly is established by using the theory of bifurcation of dynamical systems, and the existence and stability of equilibrium points of this model are discussed. The complex dynamics of this model in different market parameters are shown though numerical simulation. The simulation results show that the speed of price adjustment has an obvious impact on the stability of model. Compared with the equilibrium average profits, all airlines' average profits are decreased obviously when chaos is occurred. The dynamic price competition model of airlines can return to stable state from chaotic state by delayed feedback chaos control method while suitable controlling factor is chosen. The analysis and results in this paper are interesting in mathematics and economics.
In this paper, firstly, two new operations of the intuitionistic fuzzy sets in a crisp approximation space are introduced. Using the new operations, some information lost problems in the computation of the rough set t...
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ISBN:
(纸本)9783642549243;9783642549236
In this paper, firstly, two new operations of the intuitionistic fuzzy sets in a crisp approximation space are introduced. Using the new operations, some information lost problems in the computation of the rough set theory will be solved. Secondly, the parameters-related roughness measure of the intuitionistic fuzzy sets in a crisp approximation space is defined, and with the help of the two new proposed operations, we discuss the bounds about the parameters-related roughness measures of the union and intersection of the intuitionistic fuzzy sets in a crisp approximation space, respectively, which will be helpful to avoid unnecessary time and space in computation. Finally, we discuss the results and consider further work.
Restriction and selection criteria of inertial guidance sensors and system for a small recoverable capsule from onboard a hypersonic, atmospheric reentering rocket vehicle have attracted a specific research on the ree...
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ISBN:
(纸本)9783037857335
Restriction and selection criteria of inertial guidance sensors and system for a small recoverable capsule from onboard a hypersonic, atmospheric reentering rocket vehicle have attracted a specific research on the reentry design and challenges, with emphasize on the overall cost reduction and an optimal balance between the performances and costs under the given exploitation constraints. A simplified method for attitude control is derived that shows an easy accommodation in the capsule, given its high mass constraints, and convenient applicability for the class of small payloads under investigation. The palled experiments and investigating methodology is shown, as the result of the ORVEAL contract research team of ADDA-Association Dedicated to Development in Astronautics research organization, under the sponsorship of Romanian UEFISCDI authority for scientific research.
The proceedings contain 30 papers. The special focus in this conference is on Mobile computing, Applications, and Services. The topics include: Lowering the barrier for crowdsensing application development;towards use...
ISBN:
(纸本)9783319054513
The proceedings contain 30 papers. The special focus in this conference is on Mobile computing, Applications, and Services. The topics include: Lowering the barrier for crowdsensing application development;towards user interface components for dashboard applications on smartphones;user-centric quality of experience measurement;online reviews as first class artifacts in mobile app development;a swipe gesture-based system for exploring urban environments for the visually impaired;smartphone interactions change for different intimacy contexts;geometric layout analysis in a wearable reading device for the blind and visually impaired;a wearable computer interaction device;intelligent energy-efficient triggering of geolocation fix acquisitions based on transitions between activity recognition states;fine-grained activity recognition of pedestrians travelling by subway;reconciling cloud and mobile computing using activity-based predictive caching;towards smartphone-based assessment of burnout;an improvement of NFC-SEC with signed exchanges for an e-prescription-based application;passive user authentication through micro-behavior modeling of soft keyboard interaction;a study of graphical password for mobile devices;a cloudlet-based proximal discovery service for machine-to-machine applications;designing human computation games to update street views;relaxation training through respiratory biofeedback in a mobile casual game;using low-power sensors to enhance interaction on wristwatches and bracelets;towards unsupervised remote therapy for individuals with aphasia;create your own mobile application for data collection in the cloud;a privacy-preserving contactless transport service for NFC smartphones and an approach for using mobile devices in industrial safety-critical embedded systems.
In this paper, in allusion to the problems that space-time block code with complex signals cannot achieve full transmitting rate when the transmit antennas are more than two, based on the quasi-orthogonal space-time b...
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ISBN:
(纸本)9783642549243;9783642549236
In this paper, in allusion to the problems that space-time block code with complex signals cannot achieve full transmitting rate when the transmit antennas are more than two, based on the quasi-orthogonal space-time block coding scheme with beamforming, we present a novel method of quasi-orthogonal space-time block code with feedback information, which is designed by aiming at the maximum instantaneous signal-to-noise ratio gain for compensating the performance degradation, to overcome the multi-user access interference of the previous quasi-orthogonal space-time block coding and obtain full diversity gain and maximum coding rate at the same time. The simulation results demonstrate that the proposed closed-loop beamforming scheme can obviously improve the performance of the system without increasing the decoding complexity in the meantime.
In this paper, the Brushless DC motor (BLDCM) and reducer are used to drive each axis of three-axis turntable. In real-time servo controlsystems, the position loop parameters are designated by the software CME2, and ...
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The existing path selection scheme in ieee 802.11s for wireless mesh networks is Hybrid Wireless Mesh Protocol (HWMP). The main routing metric of HWMP is called airtime metric, which is dependent on packet error rate ...
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ISBN:
(纸本)9781479915064;9781479915088
The existing path selection scheme in ieee 802.11s for wireless mesh networks is Hybrid Wireless Mesh Protocol (HWMP). The main routing metric of HWMP is called airtime metric, which is dependent on packet error rate and transmission bitrate. HWMP does not take energy efficiency into consideration despite its importance for mobile nodes and other nodes which are battery driven. In our proposed energy-efficient HWMP (eHWMP) scheme, in addition to airtime metric, we incorporate per-hop delay and residual energy into the routing metric in order to increase energy efficiency without jeopardizing end-to-end delay performance. Preliminary simulation results show that eHWMP achieves our objective by increasing network lifetime without causing significant effects on end-to-end delay and throughput as compared to the traditional HWMP.
A simulation system on information flow is designed to emulate the data communication on the RS-485 bus, the 1553B bus and the Ethernet bus. This simulation system has a high requirement for the extendibility, and it ...
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The present paper presents the ongoing research undertaken as a research experiment, called HERMES, inside Echord european integrated project framework. The goal of the HERMES experiment is to study, analyze and final...
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Bring Your Own Device (BYOD) security is the way to protect organization's network against Variety of threats which come through mobile devices and access channels. This research paper explains the implementation ...
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ISBN:
(纸本)9781479915064;9781479915088
Bring Your Own Device (BYOD) security is the way to protect organization's network against Variety of threats which come through mobile devices and access channels. This research paper explains the implementation of BYOD security solution in higher education institution in Oman This security solution will help to protect the network data from unauthorized access, as well as, controlling unmanaged devices which are smartphones and mobile devices. This research will follow these steps starting with literature review, data collection, analysis, design the network structure with suggested solution and implementation for BYOD security solutions. As well as, monitoring the network performance with the implanted solutions to keep track if traffic flow with high availability and security. This research paper will help to facilitate the work to the network users through allowing BYOD as well as increase the network availability, ability and security through 802.1x, CA and RADius.
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