a watching system in a graph $g=(v, e)$ is a set $w={omega_{1}, omega_{2}, cdots, omega_{k}}$, where $omega_{i}=(v_{i}, z_{i}), v_{i}in v$ and $z_{i}$ is a subset of closed neighborhood of $v_{i}$ such that the sets $l_{w}(v)={omega_{i}: vin omega_{i}}$ are non-empty and distinct, for any $vin v$. in this paper, we study the watching systems of line graph $k_{n}$ which is called triangular grap...

صلاخلا ـ ة : ُّ دعتُ ل ثم ةيعيبطلا تاغللا ةجلاعم تاقيبطت نم ديدعلل ايساسأ انوكم ةيعوضوملا ةئزجتلا قيبطت تامولعملا عاجرتساو صوصنلا صيخلت . نم فدهلا وه ثحبلا اذ ه قت و مي ةيعوضوملا ة ئزجتلا تا يمزراوخ ة يلاعف ضوملا دودحلا ى لع فرعتلا يف ة يبرعلا صوصنلا لخاد ةيعو . م تو قايس لا اذ ه يف ة فلتخم رداصم نم ةيبرع صوصن ةسمخ لخاد اهنوظحلاي يتلا ةركفلا وأ عوضوملا تاريغت ىلع فرعتلل ةيبرعلا ةغللا ءارق نم ة...

This paper presents a two-dimensional Computational Fluid Dynamics (CFD) analysis on the effect of gurney flap NACA 4312 airfoil in subsonic flow. These numerical simulations were conducted for heights 1.5%, 1.75%, 2% and 3% chord length at fixed Reynold Number, Re (5×105) different angle attack (0o ~16o). ANSYS Fluent commercial software was used to conduct these simulations. The flow consider...

The surface heat flux response to underlying sea surface temperature (SST) anomalies (the surface heat flux feedback) is estimated using 42 yr (1956–97) of ship-derived monthly turbulent heat fluxes and 17 yr (1984–2000) of satellite-derived monthly radiative fluxes over the global oceans for individual seasons. Net surface heat flux feedback is generally negative (i.e., a damping of the underl...

This study examines variations in high cloud properties and relative humidity (RH) with sea surface temperature (SST) over tropical oceans (30°N–30°S) using spaceborne lidar microwave radiometer observations. The mean values the tropics indicate that middle-tropospheric RH increases, covers decrease altitudes rise SST. These signatures are consistent hypotheses proposed literature. analysis of ...

Calcium channel subtypes in adult rat and frog sensory neuron somata, acutely isolated from dorsal root ganglia (DRG neurons), were studied using Bay K 8644, nimodipine, and omega-conotoxin GVIA (omega-CgTx) as specific probes. The DRG neurons varied in diameter 15-60 microns (rat) and 20-80 microns (frog). Bay K 8644 produced a large increase in calcium currents of small-diameter rat DRG neuro...

Somatostatin (somatotropin release-inhibiting factor [SRIF]) is known to modulate the excitability of retinal ganglion cells, but the membrane mechanisms responsible and the extent to which intracellular calcium signaling is affected have not been determined. We show that somatostatin receptor subtype 4 (sst(4)) is expressed specifically in rat ganglion cells and that the generation of repetiti...

We study the resonance contributions for kaon pair originating from intermediate states $\rho(770,1450,1700)$ and $\omega(782,1420,1650)$ three-body hadronic decays $B\to K\bar K h$ in perturbative QCD approach, where $h=(\pi, K)$. The branching fractions of virtual $K\bar K$ Breit-Wigner formula tails $\rho(770)$ $\omega(782)$ which have been ignored experimental theoretical studies these are ...

We report a general method of Bayesian estimation that uses prior measurements to improve the signal-to-noise ratio of parametric images computed from dynamic PET scanning. In our method, the ordinary weighted least squares cost function is augmented by a penalty term to yield Phi(K,S)=minK{(C-f(K))(T)Omega(C)(-1)(C-f(K))+SPhi(K,S=0)(K-K;)(T)Omega(K)(-1)(K-K;)}, where C is a PET concentration h...

The combination of active and passive microwave sensors on board the Tropical Rainfall Measuring Mission (TRMM) satellite have been used to construct observationally constrained databases of precipitation profiles for use in passive microwave rainfall retrieval algorithms over oceans. The method uses a very conservative approach that begins with the operational TRMM precipitation radar algorith...