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Programmed cell death (PCD) occurs in the anther during in vivo micro-spore/pollen development. The first hallmarks are detected in the tapetum at meiosis and consist in progressive degeneration of organelles such as mitochondria, as well as DNA degradation into multiple of 180 kpb fragments. This phenomenon radially extends in the anther sporophytic tissues and finally affects microspore/pollen at...
Drowsiness detection system is based on identifying suitable driver-related and/or vehicle related variables that are correlated to the drivers level of drowsiness. International statistics shows that a large number of road accidents are caused by driver fatigue. Therefore, a system that can help to increase vigilance of the driver and make him alert from fatigue state by issuing timely warning could...
The determination of actual fillet and contact stresses during a mesh cycle of a gear drive is very difficult since these are depends on load shared by a pair during a mesh cycle. As the mesh stiffness differs at different contact points along the path of contact, it significantly affects the load sharing ratio (LSR) between the simultaneously meshed contact pairs. The present research work concentrates...
Parametric studies using numerical simulations are being performed to assess the performance capabilities and limits of active neutron interrogation for detecting shielded highly enriched uranium (HEU). Varying the shield material, HEU mass, HEU depth inside the shield, and interrogating neutron source energy, the simulations account for both neutron and photon emission signatures from the HEU with...
As the high-frequency capabilities of CMOS improve through scaling (Dambrine et al., 2005), increasing efforts have been carried out during the past years to evaluate the potential of CMOS technologies to address millimeter wave (MMW) applications. The 7 GHz unlicensed bandwidth around 60 GHz and 77 GHz vehicular radar one have focused many attention. In addition this paper demonstrates for the first...
Today, measurement of 65 nm CMOS technology demonstrates Ft around 200 GHz and Fmax higher than 250 GHz as stated in G. Dambrine et al. (2005), which are clearly comparable to advanced commercially available 100 nm III-V HEMT or state-of-the-art SiGe HBT based in P. Chevalier et al. (2004). This increase allows new millimeter wave (MMW) applications on silicon. One of the success keys is then the...
Many algorithms have been designed to visualize binary trees efficiently with respect to a quality measure. While each algorithm is suitable for drawing particular categories of binary trees, an effort to compile these algorithms to maximize the quality of drawings has not been realized. Our first step is to create a system that determines the type of a binary tree and then selects an algorithm to...
Among the numerous incoming new wireless standards, ultra wideband (UWB) systems are very attracting since they are able to transmit data over a wide spectrum of frequency bands with very low power and high data rates. The frequency band extends from 3.1 to 10.6 GHz. Consequently, parasitic capacitance and substrate losses will remain key parameters to achieve system requirement. In this work, the...
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