We present high-speed long term photometric observations from 1992 to 1996 (UBVRI), as well as recently obtained (1997) spectrophotometric and high resolution spectroscopic studies of the bright galactic supersoft X-ray source RX J0019.8 +2156. Our photometry reveals a highly variable object. The shortest observed quasi-periodic variations are humps with a period of ≈1.8 h. The timings of the m...

The evolution of solitonic waves traveling in slightly different directions is analysed in the framework of the Kadomtsev-Petviashvili equation. Nonlinear interactions of solitonic waves generally lead to phase shifts of the counterparts. If the amplitudes of the interacting solitons, the angle between their crests and the water depth are specifically balanced, interactions result in particular...

Traffic simulation models play a major role in allowing traffic engineers to assess complex situations such as U-turn section. Such help proposing solutions and alternative scenarios without committing too many expensive resources this are necessary implement strategies the field. Simulation can significantly improve quality of road network planning design urban areas.  According filed obs...

The charge distribution in atoms with closed electron shells is spherically symmetric, whereas atoms with partially filled shells can form covalent bonds with pointed lobes of increased charge density. Covalent bonding in the bulk can also affect surface atoms, leading to four tiny humps spaced by less than 100 picometers in the charge density of adatoms on a (001) tungsten surface. We imaged t...

An absolute total cross section (TCS) for electron scattering from phosphine (PH3) molecules was obtained in a linear transmission experiment at energies ranging from low (0.5 eV) to intermediate (370 eV). The dominant behaviour of the TCS energy function is a very pronounced low-energy enhancement with two distinct resonant-like humps peaked at around 2.4 and 6 eV. Above 10 eV the TCS is a rat...

telemedicine has changed the way of health care. it is an indispensable tool in the hands of doctors to accelerate and facilitate the process of data interchange. wireless networks consist of small nodes with communications capabilities. development of wireless networks of telemedicine system is highly demanded since these networks promise a wide range of potential applications. in this paper t...

The heterogeneous traffic conditions in India is making things more complicated urban areas. Traffic accidents are increasing at an alarming rate due to the rapid growth of motor vehicles past few years. number drop only sites where speed restriction techniques implemented for different vehicle categories, especially locations like approaches level crossings, negotiation points sharp curves, to...