EN: Automatic total stations are the most developed classical surveying instruments at the moment. Automatic total stations can significantly simplify the work of an operator. In some cases ...measurements can even be carried out without the presence of an operator, as the total station is completely automated. The paperdescribes different tests for the determination of accuracy in use, efficiency and robustness of the total stations systems with higher levels of automation. The chosen test procedures simulate the situation on the field and facilitate an objective assessment of systems efficiency.SI: Avtomatski elektronski tahimetri so trenutno najvišja razvojna stopnja klasičnih geodetskih instrumentov. Vgrajena sodobna tehnologija bistveno poenostavi delo operaterja za instrumentom, včasih je mogoče izvajati meritve tudi brez njegove prisotnosti, saj je delovanje tahimetra popolnoma avtomatizirano. Prispevek opisuje preizkus praktične natančnosti, učinkovitosti in robustnosti sistemov z višjimi stopnjami avtomatizacije elektronskih tahimetrov. Opisani testni primeri so izbrani tako, da simulirajo situacije naterenu in omogočajo objektivno presojo učinkovitosti sistemov.
Automatic total stations are the most developed classical surveying instruments at the moment. Automatic total stations significantly reduce the work of an operator. In some cases measurements can be ...carried out without the presence of an operator, because the station is completely automated. Paper describes the tachymeter and its development. The motives and technical bases for the development of higher degrees of automation of total stations and general characteristics of automatic systems of total stations are described.
The Huize surperlarge lead-zinc deposit is a typical deposit in the Sichuan-Yunnan-Guizhou Zn-Pb polymetallic mineralization zone, and sphalerite is the main ore minerals, which can divided into ...three metallogenic stages. Sphalerite of early metallogenic stage with dark brown, black brown colour, has higher content of silver, germanium and thallium. Sphalerite's colour of middle metallogenic stage is brown and light brown, with higher content of indium. Whereas sphalerite of later metallogenic stage with higher content of gallium, and its colour is light brown, rosiness, pale yellow, even achromaticity. Cadmium is significantly enriched in sphalerite of different metallogenic stages. By the study of trace element geochemistry of sphalerite, the Huize lead-zinc deposit is different from the typical MVT type deposits, which indicate that the Huize lead-zinc deposit formed in a special environment, and is not a typical MVT type deposit.
There is a series of Cenozoic alkali-rich porphyries along Jinshajiang river-Ailaoshan fracture belt in western Yunnan province. Quartzic calcite peritecticum, pegmatitic xenolith of quartz-albite, ...pure quartz peritecticum that includes glass inclusions and iron-rich melt xenoliths, associated with Mafic-ultramafic deep xenoliths, have been discovered in the alkali-rich porphyries. Fluid inclusion studies show that the generation of pure quartz peritecticum, Quartzic calcite peritecticum and pegmatitic xenolith of quartz-albite is bounded with immiscibility, which is caused by continuous decompressing of CO 2 - rich fluid. The paragenetic relationship, which glass inclusions were associated with H 2 O-NaCl inclusions and CO 2 inclusions, indicates that inclusions have been trapped with immiscibility of melt and fluid. Geochemistry of REE and trace element research exhibites that fluid came from enriched mantle. Reversed abnormality of Zr, Hf in pure quartz peritecticum and iron-rich melt xenoliths showed the special peritecticum(xenoliths) are products which mantle fluid(melt or fluid) generated through immiscibility of decompression in upwelling. Meanwhile, it indicates a potential truth, which melt transforms to fluid for mantle fluid which was upwelling to crust.
The trace elements, such as Ba, Sr, and Rb, were systematically used to decipher the differentiation process of the Jurassic and Cretaceous granitic rocks of South Korea. From Ba, Sr, and Rb ...relationships of the Cretaceous granitic rocks in both Kyongsang basin and Ogcheon zone, it is suggested that the Cretaceous granitic rocks were mainly formed by fractional crystallization of parental magmas. Quartz diorite (Jindong granite) in the Kyongsang basin has the chemistry of crystallized melts, as opposed to cumulate-like chemistry. While, granodiorite, adamellite, and granite (Bulgugsa granite, masanite, hypersolvus granite, and Cretaceous granitic rocks in the Ogcheon zone) have the chemistry between crystallized melts and cumulus crystals. This fact suggests that perfect separation of cumulus crystals from intermediate and felsic melts is unlikely, and some trapped intercumulus melt may be anticipated.
Background Mepolizumab, a monoclonal anti–IL-5 antibody, is an effective corticosteroid-sparing agent for patients with Fip1-like 1/platelet-derived growth factor receptor α fusion (F/P)–negative ...hypereosinophilic syndrome (HES). Lymphocytic variant hypereosinophilic syndrome (L-HES) is characterized by marked overproduction of IL-5 by dysregulated T cells. Objective To determine whether patients with L-HES respond to mepolizumab in terms of corticosteroid tapering and eosinophil depletion to the same extent as corticosteroid-responsive F/P-negative patients with HES and a normal T-cell profile. Methods Patients enrolled in the mepolizumab trial were evaluated for L-HES on the basis of T-cell phenotyping and T-cell receptor gene rearrangement patterns, and their serum thymus-and-activation-regulated chemokine (TARC) levels were measured. Response to treatment was compared in patient subgroups based on results of these analyses. Results Lymphocytic variant HES was diagnosed in 13 of 63 patients with HES with complete T-cell assessments. The ability to taper corticosteroids on mepolizumab was similar in patients with L-HES and those with a normal T-cell profile, although a lower proportion of patients with L-HES maintained eosinophil levels below 600/μL. Increased serum TARC levels (>1000 pg/mL) had no significant impact on the ability to reduce corticosteroid doses, but a lower proportion of patients with elevated TARC achieved eosinophil control on mepolizumab. Conclusion Mepolizumab is an effective corticosteroid-sparing agent for patients with L-HES. In some cases however, eosinophil levels remain above 600/μL, suggesting incomplete neutralization of overproduced IL-5 or involvement of other eosinophilopoietic factors.
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