This paper demonstrates the optimization of resistance spot welding on different connections galvanized steel sheets and low carbon steels. The zinc coating will have an effect to reduce ability in process. practical Taguchi experimental technics were used by implemented adequately optimize input factors, namely squeezing time, current, time holding time. Statistical software analysis variance ...

Abbreviations used in this paper: ANOVA, analysis of variance; ChrgA, chromogranin A; CM, membrane capacitance; Cpx, complexin; dko, double ko; EB, exocytotic burst; ko, knockout; MDis, median distance; NMJ, neuromuscular junction; NP, nitrophenyl; rms, root–mean–square; RRP, readily releasable pool; SR, sustained rate; SRP, slowly releasable pool; SybII, synaptobrevinII; Syt, synaptotagmin; wt...

Two promising technologies have been developed to improve image acquisition, namely high dynamic range (HDR) and multispectral imaging. In HDR imaging, several RGB images acquired with different exposures are combined into one image with greater dynamic range. This reduces saturated and underexposed image areas and improves the signal-to-noise ratio (SNR) of the image. On the other hand, multis...

Determination of optimal conditions of machining parameters is important to reduce the production cost and achieve the desired surface quality. This paper investigates the influence of cutting parameters on surface roughness and natural frequency in turning of aluminum alloy AA2024. The experiments were performed at the lathe machine using two different cutting tools made of AISI 5140 and carbi...

In speaker recognition systems based on VQ, normally each speaker is assigned a codebook, and the classification is done by means of the a distortion distance of the utterance computed by means of each codebook. In [1] we proposed a system which instead of having a codebook for each speaker, had only one codebook for all the speakers, and for each speaker one histogram. This histogram was the o...

Spectral analysis on the symmetric group Sn calls for computing projections of functions deened on Sn and its homogeneous spaces, onto invariant subspaces. In particular, for the analysis of partially ranked data, the appropriate homogeneous spaces are given as quotients by Young subgroups. Here the naive character theoretic approach to computing projections requires O(n n!) operations. In this...

Abstract The paper considers the methods of direct numerical investigation behaviour dynamical systems explosive type under influence random noise. Dynamical are described by a system nonstationary ordinary differential equations (ODE). dynamics system, taking into account noise, is stochastic (SODE). provides an overview modern algorithms based on modifications Runge – Kutta integration method...

We showed in Part I of this paper [1] that the estimation of the white-phase noise level of a sampled signal may be achieved with variances even if the sampling frequency is far lower than the high cut-off frequency. In Part II, the effects of spectral aliasing for the different types of noise are reviewed. The responses of the Allan variance and the modified Allan variance for high-frequency n...