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This paper introduces a system for chaotic traffic control; the proposed system is a simple, sophisticated and robust version of the Intelligent Traffic Light Flow Control System Using Wireless Sensors Networks proposed by Khalil M. et al. The proposed system adopts a simple approach by adding more Traffic Sensing Nodes [TSN] and distributing them in a matrix layout covering the road bed. In addition...
The tailsitter aircraft merges the endurance and speed of fixed-wing aircraft with the flexibility and VTOL abilities of rotorcraft. Because of the requirement to be functional at a full range of attitudes, quaternions are typically employed to calculate attitude error. Attitude control is then accomplished by using the vector component of the error quaternion to drive flight control surfaces. This...
This paper presents dynamic surface control for longitudinal dynamics of a generic hypersonic flight vehicle in presence of unknown dynamics. For the attitude subsystem, the minimal-learning-parameter technique is combined with dynamic surface design. The uniform ultimate boundedness stability is guaranteed via Small-gain Theorem. The singularity problem is removed and the simpler adaptive algorithm...
We introduce a developmental stage of multi-tentacle MAV (micro air vehicle) platform. It is based on a four rotary wing aerial platform such as a quadrotor system and three of 4 DOF (degree of freedom) tentacles attached at the bottom of it. Unlikely mobile manipulating research which focuses more on the stability and control of manipulators and floating platform, a multi-tentacle system presented...
Variable universe fuzzy control based on intelligent control technology is proposed in this paper for the hypersonic flight process of nearspace vehicle (NSV) with severe changes of aero-dynamic parameters and susceptibility on the external disturbances. And the contraction-expansion factor of the fuzzy control is given to modify the scale of universe and reduce the computational cost. By adopting...
Traffic simulations are being increasingly utilized as transportation systems have become more complex and congested. However, most simulation models have limitations in overcapacity demand conditions. When traffic in a congested area "fills" the available roadway space additional traffic demand may never be allowed to enter the network. The intent of this paper is to explore one possible...
Information dissemination applications (e.g. weather, news, advertisements, traffic, and so on) are among the most promising ones for vehicular networks. However, disseminating information to all vehicles in vehicular networks is not a trivial task because of their specific characteristics like high dynamic topology and different density values along time and space. The proposals found in literature...
Applications of Virtual and Augmented Reality with a focus in the welfare of society are becoming recurrent and there are many advantages on doing this. An important concern is the good formation of citizens for life in society, especially when such improvement can help mitigate accidents, and consequently save lives. Therefore, the aim of this article is to describe the development of a system to...
A static dial-a-ride problem with time windows is investigated, without wait while carrying passengers and maximum ride time constraints as the service quality. A parallel insertion heuristic based on the spatial and temporal aspects is presented. The proposed algorithm firstly sorts the requests based on the earliest pickup time and decentralization index alternately and initializes the routes with...
The existing intelligent intersection management solutions try to leverage global positioning, wireless communications, in-vehicle sensing and computation technologies to enable autonomous vehicles to drive through the non-signal urban intersections safely and efficiently. Control policy as the brain of the whole system has a direct impact on system performance. This paper proposes a reservation-based...
Unreached communities require access to fundamental social services such as healthcare, education, learning and purchasing opportunities to improve their economic sustainability. Unreached communities are characterized by informal and unsafe transport. Villagers have to travel long distances to urban centres to attain social services. In this article, we introduce an Information Communication Technology...
This paper investigates the energy efficiency of base station sleep scheduling strategies in 1-D infrastructure-based wireless communication networks formed by vehicles traveling on a highway. In certain scenarios, vehicular speeds and locations can be measured with a high degree of accuracy, and this information can be exploited to reduce the energy consumption of base stations. This paper considers...
The purpose of this paper is to highlight the utility of publicly released urban data-sets and, more specifically, to detail how our analysis was undertaken and to demonstrate the interesting insights regarding vehicular traffic that can be gained from this analysis. This paper uses a data-set provided by Dublin City Council from their Travel-time Reporting and Integrated Performance System (TRIPS)...
Millimeterwave band is a promising candidate for 5th generation wireless access technology to deliver peak and cell-edge data rates of the order of 10 Gbps and 100 Mbps, respectively, and to meet the future capacity demands. The main advantages of the millimeterwave band are availability of large blocks of contiguous bandwidth and the opportunity of using large antenna arrays composed of very small...
Daily, vehicles in transit in a city and during their trajectories encounter other vehicles. The regularity of these encounters is influenced by several elements, such as: vehicle's speed, destinations, traffic conditions, and the period of the day. It is possible to justify these elements by road conditions and the driver's behavior. People have routines and similar behaviors, which strongly impact...
Transportation industry is the most dynamic components of any society. In the twenty-first century, with the growth of technology and the widespread use of the Internet and the emergence of e-commerce and e-business interaction and active transportation industry deserves to have a wide range of electronic services to the transportation community to take advantage of the investors of the new and varied...
Solar and electric vehicles offer a sustainable future for the automotive industry and demonstration events offer realistic conditions to test and demonstrate the technology involved. We produced a four wheel solar car “Arrow1” by adopting a variety of appropriate technologies. These include the use of a lead-free solder alloy (Sn-Cu-Ni-Ge) in connections of the electric circuit boards of controllers,...
Autonomous Underwater Vehicles (AUVs) are Unmanned Underwater Vehicles (UUVs) that are able to function without direct control from a human operator. Consequently, they have a wide range of applications from scientific research of the oceans to military applications such as maritime surveillance. However, there is now the demand for AUVs to be operated within a multi-vehicle scenario to allow large...
This study utilizes high-throughput screening to examine human retinal progenitor cell migration in response to biomaterial and chemokine stimuli. Degenerative diseases of the retina impact millions of people worldwide each year, with no known cure available to date. Implantation of retinal progenitor cells in animal models has shown considerable promise but is limited by extremely low (<5%) levels...
Roadway illumination is a vital component of safety while driving during the night. There are regulations in place to ensure all publicly maintained roads are properly lit, but the validation process is too time consuming, costly, and dangerous for adequate data collection studies. This work is aimed toward remedying this problem by creating an Advanced Lighting Measurement System (ALMS) capable of...
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