6,297 research outputs found
Corporation robots
Nowadays, various robots are built to perform multiple tasks. Multiple robots working
together to perform a single task becomes important. One of the key elements for multiple
robots to work together is the robot need to able to follow another robot. This project is
mainly concerned on the design and construction of the robots that can follow line. In this
project, focuses on building line following robots leader and slave. Both of these robots will
follow the line and carry load. A Single robot has a limitation on handle load capacity such as
cannot handle heavy load and cannot handle long size load. To overcome this limitation an
easier way is to have a groups of mobile robots working together to accomplish an aim that
no single robot can do alon
The Landau-Zener transition and the surface hopping method for the 2D Dirac equation for graphene
A Lagrangian surface hopping algorithm is implemented to study the two
dimensional massless Dirac equation for Graphene with an electrostatic
potential, in the semiclassical regime. In this problem, the crossing of the
energy levels of the system at Dirac points requires a particular treatment in
the algorithm in order to describe the quantum transition-- characterized by
the Landau-Zener probability-- between different energy levels. We first derive
the Landau-Zener probability for the underlying problem, then incorporate it
into the surface hopping algorithm. We also show that different asymptotic
models for this problem derived in [O. Morandi, F. Sch{\"u}rrer, J. Phys. A:
Math. Theor. 44 (2011)] may give different transition probabilities. We conduct
numerical experiments to compare the solutions to the Dirac equation, the
surface hopping algorithm, and the asymptotic models of [O. Morandi, F.
Sch{\"u}rrer, J. Phys. A: Math. Theor. 44 (2011)]
Adiabatic evolution of 1D shape resonances: an artificial interface conditions approach
Artificial interface conditions parametrized by a complex number
are introduced for 1D-Schr\"odinger operators. When this complex parameter
equals the parameter of the complex deformation which unveils
the shape resonances, the Hamiltonian becomes dissipative. This makes possible
an adiabatic theory for the time evolution of resonant states for arbitrarily
large time scales. The effect of the artificial interface conditions on the
important stationary quantities involved in quantum transport models is also
checked to be as small as wanted, in the polynomial scale as
, according to .Comment: 60 pages, 13 figure
Designing and Developing a Web-Based Post Graduate Application System for UUM
The internet technologies are rapidly increasing. The aim of the study is to design and
develop a Web-based Postgraduate Application System (WPAS) for Universiti Utara
Malaysia. The WPAS is a real-time application system which is free from traditional
document processing procedures. It provides a convenient graphics user interface
(GUI) for both student and admission department staff. It allows students to make self-apply
for their selected apply online, degree program, view application status, and
update application information time-to-time. It also allows administrator to manage
student account, offer of place and admission information. All of the services are
possible anywhere at any time
Visualisation and Metering of Two Phase Counter-gravity Slurry Flow using ERT
Two-phase slurry flow is encountered in many industries such as petroleum, mining and related industries. The abrasiveness of slurry and interaction of solid particles with the carrier liquid make slurry flow measurement one of the most challenging applications in multi-phase flow metering. This paper presents a new method of solid-liquid flow metering, in which the Electrical Resistance Tomography (ERT) is used in combination with a commercial Electromagnetic Flow Meter (EMF) to measure the volumetric flow rate of each phase. A set of experiments were carried out using a mixture of sand particles and tap water as slurry. Two different sand types (coarse and medium), with a particle size range of 53-2330 μm, were pumped through a 50 mm inner-diameter pipeline. The range of throughput solids concentration used in the experiments was 5%-10% and operated the transport velocity was 2-5 m/s. The effect of solids concentration and solids velocity on the measurement scheme is discussed. The measurement results are compared to that of Coriolis mass flow meter and discharge flow measurement system (flow diversion system). The accuracy of the measurement results is assessed and the performance of the applicability of the proposed method is highlighted
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