185 research outputs found
Instrument ofthe work breakdown accounting in the high-tech production
At present, in mechanical engineering there is a tendency of small-scale production due to the peculiarities and requirements of the market. At the same time, machine-building enterprises have to account the costs of produced products accurately (both for the state defense order and for the open market). The problem of the product labor intensity calculation becomes urgent, as it is used as a basis for of the product full cost calculation. Taking into account the technology changes, equipment, peculiarities of production program formation (small or medium series), using the existing approaches, work norms manuals becomes impossible. The investigation presents an improved algorithm for the work norm calculating using for the main workers in the high-tech production. A feature of the proposed approach is taking into account the share of passive observation during the technological operations in conditions of small-scale production in the conditions of the high-tech production. The article presents the results of the proposed method testing. The approbation was realized at the industrial enterprise in the conditions of the small-scale production. Proposed algorithm for work norms calculation can be used in automation of labor rationing at the industrial enterprise. © Published under licence by IOP Publishing Ltd
Polymorphism of thrombophilia genes in children with stage V CKD
The article presents the results of a study of genetic polymorphisms associated with the risk of thrombophilia in children aged 1 to 17 years who were hospitalized in the department of nephrology of the Regional children's clinical hospital (Yekaterinburg) in 2020 with chronic kidney disease stage 5 (CKD Stage 5) for hemodialysisВ статье представлены результаты исследования генетических полиморфизмов, ассоциированных с риском тромбофилии, у детей от 1 года до 17 лет, госпитализированных в отделение нефрологии ГАУЗ СО «Областная детская клиническая больница» (г. Екатеринбург) в 2020 году с хронической болезнью почек 5 стадии (ХБП 5 стадии) для проведения гемодиализ
Precision measurements of of the proton and the deuteron with 6 GeV electrons
The inclusive polarized structure functions of the proton and deuteron, g1p
and g1d, were measured with high statistical precision using polarized 6 GeV
electrons incident on a polarized ammonia target in Hall B at Jefferson
Laboratory. Electrons scattered at lab angles between 18 and 45 degrees were
detected using the CEBAF Large Acceptance Spectrometer (CLAS). For the usual
DIS kinematics, Q^2>1 GeV^2 and the final-state invariant mass W>2 GeV, the
ratio of polarized to unpolarized structure functions g1/F1 is found to be
nearly independent of Q^2 at fixed x. Significant resonant structure is
apparent at values of W up to 2.3 GeV. In the framework of perturbative QCD,
the high-W results can be used to better constrain the polarization of quarks
and gluons in the nucleon, as well as high-twist contributions
Measurement of Exclusive Electroproduction Structure Functions and their Relationship to Transversity GPDs
Exclusive electroproduction at a beam energy of 5.75 GeV has been
measured with the Jefferson Lab CLAS spectrometer. Differential cross sections
were measured at more than 1800 kinematic values in , , , and
, in the range from 1.0 to 4.6 GeV,\ up to 2 GeV,
and from 0.1 to 0.58. Structure functions and were extracted as functions of for each of
17 combinations of and . The data were compared directly with two
handbag-based calculations including both longitudinal and transversity GPDs.
Inclusion of only longitudinal GPDs very strongly underestimates and fails to account for and ,
while inclusion of transversity GPDs brings the calculations into substantially
better agreement with the data. There is very strong sensitivity to the
relative contributions of nucleon helicity flip and helicity non-flip
processes. The results confirm that exclusive electroproduction offers
direct experimental access to the transversity GPDs.Comment: 6 pages, 2 figure
Measurement of the neutron F2 structure function via spectator tagging with CLAS
We report on the first measurement of the F2 structure function of the
neutron from semi-inclusive scattering of electrons from deuterium, with
low-momentum protons detected in the backward hemisphere. Restricting the
momentum of the spectator protons to < 100 MeV and their angles to < 100
degrees relative to the momentum transfer allows an interpretation of the
process in terms of scattering from nearly on-shell neutrons. The F2n data
collected cover the nucleon resonance and deep-inelastic regions over a wide
range of Bjorken x for 0.65 < Q2 < 4.52 GeV2, with uncertainties from nuclear
corrections estimated to be less than a few percent. These measurements provide
the first determination of the neutron to proton structure function ratio
F2n/F2p at 0.2 < x < 0.8 with little uncertainty due to nuclear effects.Comment: 6 pages, 3 page
Transverse Polarization of in Photoproduction on a Hydrogen Target in CLAS
Experimental results on the hyperon transverse polarization
in photoproduction on a hydrogen target using the CLAS detector at Jefferson
laboratory are presented. The was reconstructed in the
exclusive reaction via the
decay mode. The was reconstructed in the
invariant mass of two oppositely charged pions with the identified in
the missing mass of the detected final state. Experimental data
were collected in the photon energy range = 1.0-3.5 GeV
( range 1.66-2.73 GeV). We observe a large negative polarization of
up to 95%. As the mechanism of transverse polarization of hyperons produced in
unpolarized photoproduction experiments is still not well understood, these
results will help to distinguish between different theoretical models on
hyperon production and provide valuable information for the searches of missing
baryon resonances.Comment: pages 1
The epidemiology of the chronic kidney disease in children of the Sverdlovsk region
This article is devoted to the study of the structure of chronic kidney disease incidence in children admitted to the nephrology department of the State Autonomous Healthcare Institution of the Sverdlovsk Region "Regional Children's Clinical Hospital" (GAUZ SO ODKB) for the period 2018-2019 years. The data about the epidemiology of the disease, its major etiological factors, disease stage, presence of complications and associated diseases.Данная статья посвящена исследованиюструктуры заболеваемости хронической болезни почек у детей, госпитализированных в нефрологическое отделение государственное автономное учреждение здравоохранения свердловской области "Областнаядетскаяклиническаябольница" (ГАУЗ СО ОДКБ) за период 2018-2019 годов. Приведены данные об эпидемиологии заболевания, его основных этиологических факторах, стадий болезни, наличия осложнений и сопутствующих заболеваний
Measurement of the nuclear multiplicity ratio for hadronization at CLAS
The influence of cold nuclear matter on lepto-production of hadrons in
semi-inclusive deep inelastic scattering is measured using the CLAS detector in
Hall B at Jefferson Lab and a 5.014 GeV electron beam. We report the
multiplicity ratios for targets of C, Fe, and Pb relative to deuterium as a
function of the fractional virtual photon energy transferred to the
and the transverse momentum squared of the . We find that the
multiplicity ratios for are reduced in the nuclear medium at high
and low , with a trend for the transverse momentum to be
broadened in the nucleus for large .Comment: Submitted to Phys. Lett.
- …