Results for "Uthman Baroudi"

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Iterative Clustering for Energy-Efficient Large-Scale Tracking SystemsFeb 08 2019A new technique is presented to design energy-efficient large-scale tracking systems based on mobile clustering. The new technique optimizes the formation of mobile clusters to minimize energy consumption in large-scale tracking systems. This technique ... More
A Framework for Autonomous Robot Deployment with Perfect Demand Satisfaction using Virtual ForcesFeb 08 2019In many applications, robots autonomous deployment is preferable and sometimes it is the only affordable solution. To address this issue, virtual force (VF) is one of the prominent approaches to performing multirobot deployment autonomously. However, ... More
Optimum Bi-level Hierarchical Clustering for Wireless Mobile Tracking SystemsFeb 08 2019A novel technique is proposed to optimize energy efficiency for wireless networks based on hierarchical mobile clustering. The new bi-level clustering technique minimizes mutual interference and energy consumption in large-scale tracking systems used ... More
Pipeline Leak Detection Systems and Data Fusion: A SurveyFeb 08 2019The pipeline leakage problem is very challenging and critical issue. Solving this problem will save the nation a lot of money, resources and more importantly, it will save the environment. This paper discusses the state-of-the-art of leak detection systems ... More
Cloud-Based Autonomous Indoor Navigation: A Case StudyFeb 21 2019In this case study, we design, integrate and implement a cloud-enabled autonomous robotic navigation system. The system has the following features: map generation and robot coordination via cloud service and video streaming to allow online monitoring ... More
A thermo-mechanical explanation for the topology of crack patterns observed on the surface of charred wood and particle fibreboardApr 04 2016In the assessment of wood charring, it was believed for a long time that physicochemical processes were responsible for the creation of cracking patterns on the wood surface. This implied no possibility of rigorous explanations for this topology. In this ... More
A thermo-mechanical explanation for the topology of crack patterns observed on the surface of charred wood and particle fibreboardApr 04 2016Nov 04 2016In the assessment of wood charring, it was believed for a long time that physicochemical processes were responsible for the creation of cracking patterns on the charring wood surface. This implied no possibility to rigorously explain the crack topology. ... More
Dynamics of viscous coalescing droplets in a saturated vapor phaseDec 21 2015The dynamics of two liquid droplets coalescing in their saturated vapor phase are investigated by Lattice Boltzmann numerical simulations. Attention is paid to the effect of the vapor phase on the formation and growth dynamics of the liquid bridge in ... More
The symmetry and light stuffing of Ho2Ti2O7, Er2Ti2O7 and Yb2Ti2O7 characterized by synchrotron X-ray diffractionApr 22 2015The Ho2Ti2O7, Er2Ti2O7 and Yb2Ti2O7 pyrochlores were studied by synchrotron X-ray diffraction to determine whether the (002) peak, forbidden in the pyrochlore space group Fd-3m but observed in single crystal neutron scattering measurements, is present ... More
Superconducting NbRuB derived through the fragment formalismFeb 24 2015We employ the chemical fragment formalism to perform a targeted superconductor search in the Nb-Ru-B system, yielding the orthorhombic metal-rich boride NbRuB, which displays BCS-like superconductivity with a Tc = 3.1 K. NbRuB is derived from the chemical ... More
Superconductivity in the Niobium-rich compound Nb5Se4Dec 14 2015The niobium rich selenide compound Nb5Se4 was synthesized at ambient pressure by high-temperature solid-state reaction in a sealed Ta tube. Resistivity and heat capacity measurements reveal that this compound is superconducting, with a T_c = 1.85K. The ... More
Synthesis, crystal structure, and magnetic properties of RE3Sb3Mg2O14 (RE=La, Pr, Sm, Eu, Tb, Ho): new 2D Kagome materialsJan 25 2016Jan 27 2016We present the crystal structures and magnetic properties of RE3Sb3Mg2O14 (La3Sb3Mg2O14, Pr3Sb3Mg2O14, Sm3Sb3Mg2O14, Eu3Sb3Mg2O14, Tb3Sb3Mg2O14, and Ho3Sb3Mg2O14), a family of novel materials based on a perfect geometry 2D rare earth Kagome lattice. Structure ... More
Gene autoregulation via intronic microRNAs and its functionsJun 11 2012Background: MicroRNAs, post-transcriptional repressors of gene expression, play a pivotal role in gene regulatory networks. They are involved in core cellular processes and their dysregulation is associated to a broad range of human diseases. This paper ... More
A combination of transcriptional and microRNA regulation improves the stability of the relative concentrations of target genesJul 12 2013It is well known that, under suitable conditions, microRNAs are able to fine tune the relative concentration of their targets to any desired value. We show that this function is particularly effective when one of the targets is a Transcription Factor ... More
Magneto-elastic induced vibronic bound state in the spin ice pyrochlore Ho$_2$Ti$_2$O$_7$May 22 2018The single ion physics of Ho$_2$Ti$_2$O$_7$ is well-understood to produce strong Ising anisotropy, which is an essential ingredient to its low-temperature spin ice state. We present inelastic neutron scattering measurements on Ho$_2$Ti$_2$O$_7$ that reveal ... More
Structure and Properties of α-NaFeO2-type Ternary Sodium IridatesDec 04 2013The synthesis, structure, and elementary magnetic and electronic properties are reported for layered compounds of the type Na3-xMIr2O6 and Na3-xM2IrO6, where M is a transition metal from the 3d series (M=Zn, Cu, Ni, Co, Fe and Mn). The rhombohedral structures, ... More