1,634 research outputs found

    A virtually ample field that is not ample

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    A field KK is called ample if for every geometrically integral KK-variety VV with a smooth KK-point, V(K)V(K) is Zariski-dense in VV. A field KK is virtually ample if some finite extension of KK is ample. We prove that there exists a virtually ample field that is not ample

    Optimisation Of Processing Parameters Of Resin System In Development Of Adf Radome Fairings For Tu-142m Aircraft

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    This report highlights the optimization processing parameters for the resin system used in the fabrication of radomes for the TU-142 M aircraft . The radomes were fabricated using the standardised RIT process developed in-house with optimized parameters

    DESIGN AND IMPLEMENTATION OF SMART SENSING PLATFORM FOR ROVER-BACK CANSAT USING CORTEX-M3

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    In this study, a CanSat with capability of returning back to target is designed amd implemented. The CanSat is controlled by a state-of-the-art MBED 32-bit microcontroller. A Zigbee Based Smart Sensing Platform for Monitoring Environmental Parameters has been designed and developed. The smart weather station consists cortext-M3 based measuring units which collect the value of the temperature, relative humidity, pressure and sunlight. These units send their data wireless to a central station, which collects the data, stores and displays them into a database. The facility of adding a few more sensors and a few more stations has been provided. The main components are the pressure, ultrasonic, gps sensors and the 2.4 GHZ transmitter. The mission is planned for two stages which are flight back to the target by a paraglider and rovering on the ground on wheels. The process will be monitored on the ground sation via the GoogleEarth software. The electronics&hardware design and the control algorithm is discussed in depth in this paper

    Study of the variations of superior cerebellar artery in human cadavers

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    Background: Superior Cerebellar Artery (SCA) arises just caudal to the bifurcation of basilar artery. The artery may be exposed in various neurosurgical procedures pertaining to the basilar apex, cerebellopontine angle, clivus etc. With the recent advances in neuroradiology and microvascular surgeries, the knowledge of the anatomical variations becomes very important for the neurosurgeons to perform the operations safely and successfully. Aim of current study was to study the morphometry and anatomical variations of the proximal segment of SCA (i.e. from its origin to its first bifurcation).Methods:150 SCAs were studied by gross dissection of 75 formalin embalmed brains obtained from the department of anatomy Mysore medical college and MVJ medical college over a period of 5 years.  Results:Variations like duplication in the origin was seen in 23.3%, triplication in 2% of SCAs, and abnormal origin from Posterior Cerebellar Artery (PCA) in 25.3% were noted. Other variations like tortuous course & fenestration of SCA were found. The distance from the origin of SCA to PCA ranged between 0.7-4.5 mm. The length from SCA origin to its bifurcation ranged from 6-23 mm. Outer diameter of SCA trunk at its origin varied from 1.2-2.8 mm. The outer diameter of the Basilar Artery (BA) at the basilar apex ranged between 3.2-6 mm.Conclusion:The presence of variations can alter the plan of surgical and radiological procedures. The knowledge of such variations and anomalies along with potential clinical manifestations is of paramount importance primarily for neurosurgeons and neuroradiologists.
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