In this study, piezoelectric based compressive type accelerometer has been de-signed by using PZT-5A ceramics with bellewasher spring. FEA analysis were carried out COMSOL. According to COMSOL simulation, reso-nance frequency is nearly 42500 Hz. Sensitivity of the designed sensors measured and compared each other. Frequency spectrum was between 100Hz-10 kHz. The effects piezodisk thickness, sti...

Supernova remnants(SNRs) are believed to be the primary location of the acceleration of Galactic cosmic rays, via diffusive shock (Fermi) acceleration. Despite considerable theoretical work the precise details are still unknown, in part because of the difficulty in directly observing nucleons that are accelerated to TeV energies in, and affect the structure of, the SNR shocks. However , for the...

On the basis of generalized theory of system design the behavior of the different design trajectories in the design phase space was analyzed. The problem of the initial point selection for the time-optimal algorithm construction was connected with the discovering of an additional acceleration effect of design process. This acceleration effect has been discovered by the analysis of various desig...

This paper analyses and compares the acceleration sensor: ADXL330, ADXL345, ADXL203, and points out that the acceleration sensor functions in sports management system. Sports management system is the main controller in motion process command each node controller through the sensor to collect the movement process of the ADXL system the human body each point in three coordinate axes acceleration ...

In the common model supernova shock-acceleration of cosmic rays there are two open questions: 1. where does the high energy cosmic rays below the knee (10 − 10 Gev) come from, and 2. are cosmic ray accelerated only at their origin or contineuosly during their residence in the Galaxy. We show that 105 eV light nuclei are probably accelerted by associations of supernovae. The ratio of the spectra...

A mechanism of ultra-high energy (UHE) cosmic ray acceleration in extragalactic radio sources at the interface between the relativistic jet and the ambient medium is discussed as a supplement to the shock acceleration in ‘hot spots’. Particles accelerated at the jet side boundary are expected to dominate at highest energies. The spectrum formation near the cut-off energy is modeled using the Mo...

In this paper, we describe work in progress on a methodology for the hardware-software codesign of the Xilinx Micro-Kernel (XMK), leveraging the Xilinx Platform Studio (XPS) [1]. Combined with the Microblaze [2] softprocessor and the XPS system design framework, XMK is an ideal target for hardware acceleration due its modular design and configurability. Our methodology will target FPGA devices ...