Modernization of the rotor low-pressure turbines of PT-135 series

В статье представлена модернизация ротора низкого давления турбин серии ПТ-135 производства ЗАО «УТЗ». Проанализированы работа турбины, дефекты ротора низкого давления, возникающие в процессе эксплуатации. Представлена методика расчета ротора на статическую прочность.The article presents the modernization of the low-pressure turbine rotor series PT-135 manufactured by JSC "Ural Turbine Works". Analyzed the work of the turbine low pressure rotor defects arising during operation. The technique of the rotor based on the static strength

A search for J^{PC}=1^{-+} exotic mesons in the pi- pi- pi+ and pi- pi0 pi0 systems

A partial wave analysis (PWA) of the pi-pi-pi+ and pi-pi0pi0 systems produced in the reaction pi- p -> (3pi)-p at 18 GeV/c was carried out using an isobar model assumption. This analysis is based on 3.0M pi-pi0pi0 events and 2.6M pi-pi-pi+ events and shows production of the a2(1320), pi2(1670) and \pi(1800) mesons. An earlier analysis of 250K pi-pi-pi+ events from the same experiment showed possible evidence for a J^{PC}=1^{-+}$ exotic meson with a mass of 1.6 GeV/c^2 decaying into rho pi. In this analysis of a higher statistics sample of the (3pi)- system in two charged modes we find no evidence of an exotic meson.Comment: 4 pages, 5 figures, added comment about the negative reflectivity exotic wave

Search for f1(1285)→π+π−π0f_1(1285) \to \pi^+\pi^-\pi^0 decay with VES detector

The isospin violating decay $f_1(1285)\to\pi^+\pi^-\pi^0$ has been studied at VES facility. This study is based at the statistics acquired in $\pi^- Be$ interactions at 27, 36.6 and 41 GeV/c in diffractive reaction $\pi^- N \to (f_1 \pi^-) N$. The $f_1(1285) \to \pi^+\pi^-\pi^0$ decay is observed. The ratio of decay probabilities $BR(f_1(1285) \to \pi^+\pi^-\pi^0)$ to $BR(f_1(1285) \to \eta \pi^+\pi^-) \cdot BR(\eta \to \gamma\gamma)$ is $\sim\:1.4$.Comment: 10 pages, 8 figures, presented at XII Conference on Hadron Spectroscop

APPLICATION OF AXIAL EXHAUST OF STEAM TURBINE FOR WASTE-TO-ENERGY PLANT

The paper presents the main results associated with steam turbine equipment, which is used in waste-to-energy plant. The article contains influence of the design of the exhaust on the efficiency of the steam turbine. Considered a number of technical solutions for exhaust of steam turbines of various manufacturers.В работе изложены проблемы связанные с паротурбинным оборудованием, которое используется на мусоросжигательных заводах. В работе проанализированы влияние конструкции выхлопного патрубка на эффективность работы паровой турбины. Рассмотрен ряд технических решений по выхлопным патрубкам паровых турбин различных производителей

Lymphocyte subpopulations of bone marrow of breast cancer patients

We have studied bone marrow lymphocytes subpopulations in 67 patients with breast cancer and 13 patients with benign processes in the mammary gland. Morphological study of the cellular composition of the bone marrow and immunological analysis of lymphocyte subpopulations have been done. Comparative characterization of lymphocyte subpopulations in the bone marrow of patients with breast cancer and benign breast diseases was done by flow cytometry. The gate of Mature lymphocytes (CD45++) studied subpopulations of T cells (CD3), b cells (CD19), NK cells (CD56+CD3–). Among T lymphocytes (CD3+) was studied TCRγδ and TCRαβ cells, a subpopulation of CD4, CD8, CD4+, CD25+ T-regulatory cells. Within В-lymphocytes (CD19+) was studied subpopulations CD10, CD38, CD5 lymphocytes. We revealed a significant increase of CD5+, CD38+ B-cells in patients with breast cancer compared to benign tumors. Index of maturation of erythrocytes was significantly higher in BC 0.96 in comparison with benign processes 0.92. When comparing immunological data with histological structure of the tumor in the group of breast cancer patients, it was noted that the percent of CD10+ B-lymphocytes was significantly higher in infiltrative ductal cancer in comparison to infiltrative lobular carcinoma (19.3 and 8.0 % accordingly; p = 0.024)