Lessons learned
The Influence of Damping on Vibration Induced by High-Speed Trains
... Although, slab-track solutions may offer certain advantages to the traditional ballasted tracks, in Portugal only ballasted lines are present and therefore this study is solely concerned with them. In this paper, full 3D ...
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Towards an integrated technology management across the rail supply chain extended to society: Building the case study on high-speed trains
... the high- speed train (HS) in the 70’ and latter maglev in the 80’ 5 that happened the technology breakthrough from the steel and heavy vehicles, running at low speed with high levels of ...
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Ground Vibrations Induced by High-Speed Trains in Regions with Sudden Foundation Stiffness Change
... This paper concerns with excessive ground and track vibrations induced by high speed trains, when crossing regions with abrupt changes in vertical stiffness of the track and/or subsoil. These ...
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Analysis and mitigation of vibrations induced by the passage of high-speed trains in nearby buildings
... The problem of vibrations induced by moving vehicles is divided into three stages: a generation stage, in which the vehicle interacts with the track; a propagation stage, in which the fo[r] ...
Transverse Vibrations in Beams Supported by a Piece-Wise Homogeneous Visco-Elastic Foundation
... The paper is organized in the following way. In Section 2 the motivation for the methodology adopted is given, governing equations are presented and simplifying assumptions are stated. For the sake of simplicity ...
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Power Aware & High Speed Booth Multiplier based on Adiabatic Logic
... In the adiabatic switching approach, the circuit energies are conserved rather than dissipated as heat. Depending on the application and the system requirements, this approach can sometimes be used to reduce the power ...
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A High Speed Programmable Ring Oscillator Using InGaZnO Thin-Film Transistors
... better speed compared to RO reported in ...provide high speed of operation and almost rail-to-rail output swing, with single gate transistors whose mobility is around .../V.s. Speed can be ...
PERFORMANCE OF SPRAY NOZZLES IN LAND APPLICATIONS WITH HIGH SPEED
... The experiment was conducted at the Igreja Velha Farm in Tibagi city – state of Paraná (PR), Brazil, in soybean commercial farming, cultivar BRS 284 sown at a space of 0.45m x 0.08m in January 2011. The area used ...
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High Speed Area Efficient 8-point FFT using Vedic Multiplier
... A 4-bit adder, 4-bit ripple carry adder, 2*2 Vedic multiplier, 4-bit binary multiplier, 4-bit multiplier using 4-bit adder and 4-bit multiplier using ripple carry adder have been proposed in this paper and implementation ...
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A Ka-Band CMOS Voltage Controlled Oscillator for High Speed Wireless Communication
... In convention, the millimeter wave radio circuits are implemented in Gallium Arsenide (GaAs) or Silicon Germanium (SiGe) technologies [1-4]; but those technologies are not easy to integrate with baseband circuits and ...
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High Speed Boosted Cmos Differential Logic for Ripple Carry Adders
... a high speed boosted CMOS differential logic which is applicable in Ripple Carry ...switching speed by boosting the gate-source voltage of transistors along timing critical signal ...
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Multiple-color optical activation, silencing, and desynchronization of neural activity, with single-spike temporal resolution.
... We first created a fusion protein comprising the mammalian codon-optimized form of N. pharaonis halorhodopsin (Halo), with EGFP added in-frame at the C-terminus for ease of visualization (see Methods for details). When ...
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Design and Performance Analysis of Hybrid Adders for High Speed Arithmetic Circuit
... As delay is the major issue to determine the characteristics of the design, our one main goal was to reduce the delay. The values of delay obtained for different Vdd values of 0.8V, 1.8V and 3V. To make the comparison ...
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Modeling of Multilayer Transmission Lines for High-Speed Digital Interconnects
... We provided the results of FEM in two- dimensional asymmetric coupled microstrips and four-line symmetric coupled microstrips with a two- layer substrates. The results of capacitance matrices for self and mutual ...
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Solidification microstructure of M2 high speed steel by different casting technologies
... of strong carbide-forming elements in it, such as vanadium, molybdenum and tungsten (Table 2). In addition, the fiber-like carbides have round and curved profiles with high curvature, which remarkably improves the ...
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Built-in self test of high speed analog-to-digital converters
... These limitations can be minimized by improving the sizing of the circuits, by enhancements in the circuit topologies, and by careful layouts. Also, some of these limitations are more severe than others. For example, the ...
A new high speed low power performance of 8- bit parallel multiplier-accumulator using modified radix-2 booth encoded algorithm
... proposed high speed low power multiplier adopting the new SPST implementing ...30% speed improvement and 22% power reduction in the modified booth encoder when compared with the conventional tree ...
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A Quantitative Analysis of Pulsed Signals Emitted by Wild Bottlenose Dolphins.
... click trains, Creaks and ...both high fre- quencies and fine-scale time resolution [8], the observed differences in multiple temporal cues may enable the distinction between different vocal units, even if ...
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Magali Leonel1 ; Taila Santos de Freitas1 ; Martha Maria Mischan2
... low speed and high feed moisture ...The high moisture content in the feed might act as a lubricant and reduce the melt viscosity during extrusion leading to high breakdown viscosity ...
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A Built-In Self-Test Technique for High Speed Analog-to-Digital Converters
... generate high frequency sinusoidal and clock signals and, on the digital side, to employ straightforward digital signal processing (DSP) techniques to dynamically and function- ally test high speed ...
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