Browsing by Subject "Gravitation"
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Automatic steering control of unmanned vehicles
(2000)The problem of robust automatic steering of an autonomous unmanned vehicle is studied. The problem is solved using a robust PD feedback controller feeding back the path error and the front steering angle. The design goal ... 
Black hole search and exploration in unoriented tori with synchronous scattered finite automata
(2012)We consider the problem of locating a black hole in a synchronous, anonymous, and unoriented torus network using mobile agents. A black hole is a harmful network node that destroys any agent visiting it without leaving any ... 
Black hole search with finite automata scattered in a synchronous torus
(2011)We consider the problem of locating a black hole in synchronous anonymous networks using finite state agents. A black hole is a harmful node in the network that destroys any agent visiting that node without leaving any ... 
Dangerous graphs
(2019)Anomalies and faults are inevitable in computer networks, today more than ever before. This is due to the large scale and dynamic nature of the networks used to process big data and to the everincreasing number of adhoc ... 
Direct numerical simulation of particleladen turbulent channel flows with two and fourway coupling effects: Budgets of Reynolds stress and streamwise enstrophy
(2016)The budgets of the Reynolds stress and streamwise enstrophy are evaluated through direct numerical simulations for the turbulent particleladen flow in a vertical channel with momentum exchange between the two phases. The ... 
The Effect of Flexible Vegetation in Gravity Currents with Large Salinity in Composite Cross Section
(2022)In this study experiments in a laboratory tank to examine the effect of bed with vegetation on the motion of gravity currents between fresh and salt water with high salinity were performed. The shape of the tank was composite ... 
The effect of gravitational acceleration in the streaming potential on the surface of a planetary body and in orbit around it
(2015)A corrected gravitational acceleration has been used for the study of the electric streaming potential. The acceleration has been corrected for the oblateness of a spherical body, as well as the rotational velocity of the ... 
The effect of switching the order of experimental teaching in the study of simple gravity pendulum  A study with junior highschool learners
(2017)The present study focuses on the educational value of lab work while teaching and learning Physics. Specifically, it investigates and compares the learning outcomes between three different experimental groups, in the study ... 
The effect of switching the order of experimental teaching in the study of simple gravity pendulum  A study with junior highschool learners
(2017)The present study focuses on the educational value of lab work while teaching and learning Physics. Specifically, it investigates and compares the learning outcomes between three different experimental groups, in the study ... 
Einstein and Møller EnergyMomentum Complexes for a New Regular Black Hole Solution with a Nonlinear Electrodynamics Source
(2016)A study about the energy and momentum distributions of a new charged regular black hole solution with a nonlinear electrodynamics source is presented. The energy and momentum are calculated using the Einstein and Møller ... 
EnergyMomentum for a Charged Nonsingular Black Hole Solution with a Nonlinear Mass Function
(2017)The energymomentum of a new fourdimensional, charged, spherically symmetric, and nonsingular black hole solution constructed in the context of general relativity coupled to a theory of nonlinear electrodynamics is ... 
Gravity currents with large salinity in a gravel bed valley: an experimental study
(2022)In the current study experiments in a valley (a composite crosssectional tank consisting of a rectangular upper cross section and a lower trapezoidal) were performed. The purpose of this research is to study the gravel ... 
A gravitybased threedimensional compass in the mouse brain
(2020)Gravity sensing provides a robust verticality signal for threedimensional navigation. Head direction cells in the mammalian limbic system implement an allocentric neuronal compass. Here we show that headdirection cells ... 
High prevalence of hypohydration in occupations with heat stress  Perspectives for performance in combined cognitive and motor tasks
(2018)Purpose: To evaluate the prevalence of dehydration in occupational settings and contextualize findings to effects on performance in cognitively dominated tasks, simple and complex motor tasks during moderate and high heat ... 
The influence of different types of permeable bed (Flexible vegetation and inflexible rod bundle) in gravity currents
(2017)In this study, experiments were performed in a laboratory tank to investigate the effect of a permeable bed (flexible or inflexible) on the movement of gravity currents. The vegetation in the bed of the laboratory tank was ... 
Localization of EnergyMomentum for a Black Hole Spacetime Geometry with Constant Topological Euler Density
(2018)The evaluation of the energymomentum distribution for a new fourdimensional, spherically symmetric, static and charged black hole spacetime geometry with constant nonzero topological Euler density is performed by using ... 
Multi  Objective robust control for 4WS cars
(2000)The problem of robust regional stabilization with simultaneous robust triangular decoupling (RRSRTD) for a four wheel steering car (4WS) is studied. First the robust triangular technique is applied to the 4WS car in order ... 
Particle motion around charged black holes in generalized dilatonaxion gravity
(2018)The behaviour of massive and massless test particles around asymptotically flat and spherically symmetric, charged black holes in the context of generalized dilatonaxion gravity in four dimensions is studied. All the ... 
Rainfed cultivation with supplemental irrigation modelling on seed yield and oil of Coriandrum sativum L. using precision agriculture and GIS moisture mapping
(2021)The aim of the present study was to determine the effects of rainfed and supplemental irrigation, and sowing period (SP) treatments on coriander (Coriandrum sativum L) yield, essential oil content and umbel heights by ... 
Tight bounds for scattered black hole search in a ring
(2011)We study the problem of locating a particularly dangerous node, the socalled black hole in a synchronous anonymous ring network with mobile agents. A black hole destroys all mobile agents visiting that node without leaving ...