Systematic explorations of new compounds in the La(3+)-V(4+)/V(5+)-iodate system led to three new lanthanum(III) vanadium iodates, namely, LaVO(IO(3))(5), LaV(2)O(6)(IO(3)), and LaVO(2)(IO(3))(4).H(2)O. LaVO(IO(3))(5) is isostructural with LaTiO(IO(3))(5) and its structure contains a 0D [VO(IO(3))(5)](3-) anionic unit composed of one VO(6) octahedron linked to five IO(3)(-) groups. Such 0D anio...

We used the ideal observer (IO) and IO with model mismatch (IO-MM) applied in the projection domain and an anthropomorphic channelized Hotelling observer (CHO) applied to reconstructed images to optimize the acquisition energy window width and to evaluate various scatter compensation methods in the context of a myocardial perfusion single-photon emission computed tomography (SPECT) defect detec...

Iron-based catalysts are widely used in water treatment and environmental remediation due to their abundant content nature ability activate persulfate at room temperature. Here, eggshell biochar-loaded natural iron slag (IO@ESBC) was successfully synthesized remove tetracycline hydrochloride (TCH) by activated persulfate. The morphology, structure chemical composition of IO@ESBC were systematic...

This paper presents our preliminary implementations of parallel IO routines in Chapel, a high-productivity parallel language for large-scale systems. The IO functions are implemented using standard Chapel features, taking POSIX as the IO middleware layer and Lustre as the target parallel file system. In this work, we focus on the Chapel Block data distribution, for which we propose different al...

Parallel IO (PIO) support for larger scale computing is becoming more important as application developers better understand its importance in reducing overall execution time by avoiding IO overheads. This situation has been made more critical as processor speed and overall system size has increased at a far greater rate than sequential IO performance. Systems such as MPI_Connect and PACX-MPI al...

in this paper, we try to use modeling based on singular perturbation theory, in order to control satellite attitude during the wide rolling angle maneuvering through nonlinear h∞ control strategy. differential equations describing dynamics of the satellite are presented first, and by choosing the appropriate dynamic model for actuators and based on the standard singular perturbation model, the ...

This paper describes the analysis of form, function and distribution third person object clitic pronouns in corpus PRESEEA-Medellín, aims to widen knowledge pronouns’ morphosyntactic variation different Spanish varieties. Our findings show that selection forms lo(s), la(s) le(s) is determined by case, gender number, independently animate/inanimate or continuous/discontinuous nature referent, wh...

This paper focuses on evaluation of the effectiveness of optimization at various layers of the IO path, such as the file system, the device driver scheduler, and the disk drive itself. IO performance is enhanced via effective block allocation at the file system, request merging and reordering at the device driver, and additional complex request reordering at the disk drive. Our measurements sho...