This paper presents an energy efficient successive-approximation register (SAR) analog-to-digital converter (ADC) for low-power applications. To improve the overall energy-efficiency, a skipping-window technique is used to bypass corresponding conversion steps when input falls in window indicated by time-domain comparator, which can provide not only polarity of input, but also amount informatio...

In practice, there are several applications in which logistics service providers determine the time windows at customers, for example, parcel delivery, retail, and repair services. These companies face uncertain travel times that have to be taken into account when determining routes prior departure. The objective of proposed robust vehicle routing problem with window assignments (RVRP-TWA) is s...

We study the connection between STFT multipliers A1⊗mg1,g2 having windows g1,g2, symbols a(x,ω)=(1⊗m)(x,ω)=m(ω), (x,ω)∈R2d, and Fourier Tm2 with symbol m2 on Rd. find sufficient necessary conditions m,m2 g1,g2 for equality Tm2=A1⊗mg1,g2. For m=m2 former holds only particular choices of window functions in modulation spaces, whereas it never occurs realm Lebesgue spaces. In general, multiplier A...

Ischemic stroke is a major cause of morbidity and mortality for which the only approved treatment in the acute setting is intravenous thrombolysis. The efficacy and safety of recombinant tissue plasminogen activator (rt-PA) have been firmly established within 3 h of symptom onset; however, few patients are eligible for treatment in this time window. Expanding the time for treatment has been cha...

introduction: the purpose of this study was to compare the setting time and post-setting solubility, flow, film thickness and dimensional changes of ah26 root canal sealer with ah26-antibiotic combination. materials and methods: this study was performed according to british standard bs 6876 (2001) which tests the physicochemical properties of endodontic sealers. three samples of each of tested ...