Specializing in physics

The modelling of traffic flow using methods and models from physics has a long history. In recent years especially cellular automata models have allowed for large-scale simulations of large traffic networks faster than real time. On the other hand, these systems are interesting for physicists since they allow to observe genuine nonequilibrium effects. Here the current status of cellular automata models for traffic flow is reviewed with special emphasis on nonequilibrium effects (e.g. phase transitions) induced by on- and off-ramps.

23p nguyenhaisu 07-08-2015 62 4   Download

The calculations showed that the results are comparable to the best MOFs for the hydrogen storage up to date. The results also elucidated that the gravimetric hydrogen uptakes depend on the special surface area and pore volume of the MIL-88s. These important structural features, if properly improved, lead to an increase in the capability of hydrogen storage in MIL-88s.

30p extraenglish 26-05-2021 12 3   Download

The study affirms that both physical factors and neighbourhood factors largely and significantly influence housing formation patterns in the international borders. Therefore, there is need for Nigeria government most specially to take cognizance of these important factors when formulating or developing her housing development plan.

15p lucastanguyen 01-06-2020 17 3   Download

Composite materials have gained traction in the world today and are becoming of common use in industrial and specialized applications in general due to their flexible nature that involves mixing through layers or matrixes the components of various substances and therefore, a percentage of each substance’s physical properties.

12p lucastanguyen 01-06-2020 44 2   Download

Specifically, the science of physics to the laws of natural movement, from a macroscopic (particles that make up matter) to larger scales (planets, galaxies and the universe). In English, from physics (physics) is derived from Greek φύσις (phusis) means natural and φυσικός (phusikos) is of the nature. The main object of study now include physical matter, energy, space and time.

7p phalinh14 07-08-2011 58 3   Download

Collection of research reports best universities honored author. Two. Le Van Dung, a number average convergence theorem for two index array of random elements in Banach spaces with integrable conditions are ... Science (in Latin Scientia, meaning "knowledge "or" understanding ") is the efforts to implement the invention, and increased knowledge of the human understanding of how the operation of the physical world around them.

10p phalinh14 07-08-2011 66 4   Download

Physics has an important role in our life. Without physics and the work of physicists, our modern life would not exist. Using physics, people created machines, instruments and some different divices from the crudest to the most modern aspect. Techology is developed more rapidly, more modern day by day. Moreover, all other natural sciences- example chemistry, biology, medicinedepend upon physics for the foundations of their knowledge.

17p tieulaubau 21-06-2011 87 5   Download

This thesis presents time-resolved measurements of the spin evolution of transient carrier populations in III-V quantum wells. Non-equilibrium distributions of spin polarisation were photoexcited and probed with picosecond laser pulses in three samples; a high mobility modulation n-doped sample containing a single GaAs/AlGaAs quantum well, an In0.11Ga0.89As/GaAs sample containing three quantum wells and, a multi-period GaAs/AlGaAs narrow quantum well sample.

157p tieulaubau 21-06-2011 84 7   Download

Infrared radiation is a type of electronmagnetic radiation (a wave with electricity) . The wave is longer than light which humans can see and shorter than microwaves. • The name means "below red". The word "Infrared" is from the Latin infra ("below") and red, which has the longest wave for light.

10p tieulaubau 21-06-2011 44 3   Download

Spheroidal wave functions are special functions in mathematical physics which have found many important and practical applications in science and engineering where the prolate or the oblate spheroidal coordinate system is used. In the evaluation of electromagnetic (EM) fields in spheroidal structures, spheroidal wave functions are frequently encountered, especially when boundary value problems in spheroidal structures are solved using full-wave analysis.

11p tienvovan 11-09-2010 84 9   Download

To move signals of that frequency around efficiently within my transmitting station needed what can only be described as plumbing transmission lines made out of thin copper pipes and ceramic insulators—the alternative being expensive, specially constructed, but very high loss, coaxial cable. Yet here we are twenty years later happily shoving similar frequencies down twisted pairs without really thinking about the physics involved! Three factors about radio frequency signals are very important in understanding our problem:...

4p qd-tek 28-04-2010 94 2   Download