Increasing observational evidence supports a picture for a close link among AGN phenomenum, star-formation processes and galaxy formation. Since the physical phenomena related to the onset of both AGN and star formation are very likely characterized by a strong far infrared (FIR) emission it becomes mandatory to investigate the FIR energy domain. However, because of their faintness in the FIR e...

To determine the effect of far-infrared (FIR) irradiation on the antioxidant activities of sesame meal, half of sesame seeds were FIR-irradiated and then oil was extracted from the seeds. The resulting defatted sesame meal (DSM) was extracted with methanol, and the antioxidant activities of methanolic extract were determined. FIR irradiation of sesame seeds for 30 min increased the total phenol...

Abstract: The large group delay of the high order FIR filters is unacceptable in some applications. Therefore, recently, how to reduce the group delay of FIR filters has been studied intensively. To reduce the ringing in the time domain and to maximize the stopband attenuation, it is useful to design FIR filters with maximally flat characteristics in the passband and transmission zeros in the s...

The fir engraver, Scolyfus venrralis LeC., attacks white fir, Abies condor (Gord. and Glend.) Lindl., and other true firs, Abies spp., in western North America. The biology, attack behavior, and ecology of this bark beetle were recently summarized by Berryman and Ferrell(1988). During the summer flight season, the attacking beetles bore into the cambial zone of fir boles, introducing a pathogen...

In drug-safety study, the measurements of QT intervals require to have a level of precision to detect small druginduced prolongation (~ 5 msec). This paper discusses a modified approach of ∏-shaped FIR Filter to optimize the quality of signal and improve the stability of QT/QTc interval measurements.The proposed filter is designed to have a time-dependent frequency characteristic based on pre-d...

We propose a novel approach for designing a low power datapath in wireless communication systems. Especially, we focus on the digital FIR filter. Our proposed approach can reduce the power consumption and the circuit area of the digital FIR filter by optimizing the bitwidth of the each filter coefficient with keeping the filter calculation accuracy. At first, we formulate the constraints about ...

We investigate the local correlation betwen the 1.4 GHz radio continuum and 60 μm far-infrared (FIR) emission within the Large Magellanic Cloud (LMC) on spatial scales between 0.05 and 1.5 kpc. On scales below ∼1 kpc, the radio-FIR correlation is clearly better than the correlation of the cold gas tracers with either the radio or the FIR emission. For the LMC as a whole, there is a tight correl...

This paper proposes a new design of a computationally efficient FIR filters with wide passband and sharp transition, where generalized sampling kernels are introduced and utilized along with the IFIR filter structure. In particular, the proposed filter design approach provides a closed-form solution for filter coefficients, yielding a practical design procedure for linear-phase sharp FIR digita...

Sharp FIR filters have very high implementation complexities. This is even more so for sharp 2-D FIR filters. In this paper, we introduce a new efficient approach for the synthesis of sharp diamond-shaped 2-D FIR filters using the frequency response masking technique. The design procedure as well as the parameters for the minimum complexity design are presented. A design example is also include...