Two new rare-earth dicyanamides, namely, Tb[N(CN)2]3‚2H2O and Eu[N(CN)2]3‚2H2O, have been prepared by ion exchange in aqueous solution, followed by evaporation of the solvent at room temperature. The structures of both compounds have been solved and refined from single-crystal and powder X-ray diffraction data, respectively. The two compounds are isostructural and are built up from irregular qu...

Results of magnetization and high-field electron spin resonance (ESR) studies of the new spin-1 Haldane-chain material [Ni(C2H8N2)2NO2] (BF4) (NENB) are reported. A definite signature of the Haldane state in NENB was obtained. From the analysis of the frequency–field dependence of magnetic excitations in NENB, the spin-Hamiltonian parameters were calculated, yielding 1/kB = 17.4 K, g‖ = 2.14, D...

This study investigated the effects of hearing impairment and auditory vs. auditory-visual perception of lexical tone by native Thai hearing impaired listeners: Hearing Impaired with Hearing Aids (HI+HA), Hearing Impaired without Hearing Aids (HIHA), and Normal Hearing (NH). Adults’ discrimination of the 5 Thai tones was investigated in auditory-visual (AV), auditoryonly (AO), and visual-only (...

Speech recognition in reverberant environments is still a challenge problem. In this paper, we first investigated the reverberation effect on subband temporal envelopes by using the modulation transfer function (MTF). Based on the investigation, we proposed an algorithm which normalizes the subband temporal modulation spectrum (TMS) to reduce the diffusion effect of the reverberation. During th...

In the subband coding of images, directionality of image features has thus far been exploited very little. The proposed subband coding scheme utilizes orientation of local image features to avoid the highly objectionable Gibbs-like phenomena observed at reconstructed image edges with conventional subband schemes at low bit rates, At comparable bit rates, the subjective image quality obtained by...

the present study investigates the accumulation of vanadium, iron, and nickel in different depths of soil in collection sites of oil sludge, in masjed soleyman oil and gas exploitation company, located in choob sorkh region. to conduct the research, four sampling points have been selected at the mentioned site, with one sampling point chosen outside the site, as the clean area. soil sampling ha...

yusuf ibn mohammad ibn yusuf heravi, commonly known as “hakim yosefi” and “molana ibn yusuf”, son of mohammad yosefi, was a 10th century ah physician. it seems he was a native from khaf, khorasan which studied in mā varā al-nahr and leaved in harat. since of he fear of sorkh kolahan, he moved to india with his father. his works are important from that he poetry to facilitate medicine subjects. ...

This paper presents design methods for boundary filters for the processing of finite-length signals. In particular, it is shown how vanishing moments can be imposed during the design. Applications are found in segmentation-based audio and shape-adaptive image compression.

Regulatory policy in telecommunications is desperately in need of mid-level theory. There is widespread consensus that regulators should try to promote competition. There is also bitter contention about what this implies for particular industry battles. For example, an industry observer declared, “Competition should be the policy. And code that enables competition should be the rule.” He then w...