The UHECR-FR0 Radio Galaxy Connection: A Multi-Messenger Study of Energy Spectra/Composition Emission and Intergalactic Magnetic Field Propagation

This study investigates low luminosity Fanaroff-Riley Type 0 (FR0) radio galaxies as a potentially significant source of ultra-high energy cosmic rays (UHECRs). Due to their much higher prevalence in the local universe compared to more powerful radio galaxies (about five times more than FR-1s), FR0s may provide a substantial fraction of the total UHECR energy density. To determine the nucleon composition and energy spectrum of UHECRs emitted by FR0 sources, simulation results from CRPropa3 are fit to Pierre Auger Observatory data. The resulting emission spectral indices, rigidity cutoffs, and nucleon fractions are compared to recent Auger results. The FR0 simulations include the approximately isotropic distribution of FR0 galaxies and various intergalactic magnetic field configurations (including random and structured fields) and predict the fluxes of secondary photons and neutrinos produced during UHECR propagation through cosmic photon backgrounds. This comprehensive simulation allows for investigating the properties of the FR0 sources using observational multi-messenger data.Comment: PoS 444 (38th ICRC) 151

Композиционные особенности и печатные проблемы двухкомпонентных маркировочных красок

Досліджено визначальні чинники стабільності друкарсько-технологічних властивостей двокомпонентних маркувальний фарб на епоксидній основі. Запропоновано науковий підхід до проблеми надання друкарсько-технологічних властивостей епоксидним лакофарбовим системам, що складаються з нетрадиційних для звичайних друкарських фарб компонентів.There were investigated determination factors of printing technological stability of two-component epoxy based marking inks. Scientific approach to the problem of impart the printing technological properties to epoxy non-traditional ink systems are suggested.Исследованы определяющие факторы стабильности печатно-технологических свойств двухкомпонентных маркировочных красок на эпоксидной основе. Предложен научный подход к проблеме придания печатно-технологических свойств эпоксидным лакокрасочным системам, состоящим из нетрадиционных для обычных печатных красок компонентов

Increasing the Service Life of Marine Transport Using Heat-Resistant Polymer Nanocomposites

This paper presents the technological aspects of increasing the thermal stability of polymers, with epoxy binder used to form the polymer materials. Polyethylene polyamine was used to crosslink the epoxy binder. To ensure the thermal stability of the polymer, nanodispersed condensed carbon with a dispersion of 10–16 nm was used. The research into nanocomposites under the influence of elevated temperatures was carried out using the “Thermoscan-2” derivatograph. Complex studies of thermophysical properties were carried out, according to the results of which the optimal content of nanofiller (0.050 pts.wt.) was determined. At the same time, this particular polymer was characterized by the following properties: temperature of the beginning of mass loss—T0 = 624.9 K; final temperature of mass loss—Tf = 718.7 K; relative mass loss—εm = 60.3%. Research into the activation energy of thermal destruction was performed to determine the resistance to the destruction of chemical bonds. It was proved that the maximum value of activation energy (170.1 kJ/mol) is characterized by nanocomposites with a content of nanodispersed condensed carbon of 0.050 pts.wt., which indicates the thermal stability of the polymer.</jats:p

Факторы, влияющие на исходы острой пневмонии

80 patients with acute pneumonia were complexly examined when they were admitted to, and discharged from, a hospitai as well as 6—12 months later. The outcomes into chronic non-specific pulmonary diseases were reveaied in 25% of cases. Analysis of the examination resuits made it possible to ascertain the following risk factors of the acute pneumonia transition into chronic non-specific pulmonary diseases: severe or delayed course of disease; presence of Streptococcus or Escherichia coli in the sputum; lingering and massive antibacterial therapy; such symptoms of incomplete recovery on the moment of a patient discharge from a hospital as cough, non-specific showings of inflammation in biochemical blood analysis, roentgenographically revealed changes, external  respiration disorder; reduction of pulmonary blood flow when patients were admitted to, and especially when they were discharged from, a hospital; adaptive stress reaction; chronic alcoholic intoxication. The following factors contribute to favor outcomes: physiotherapy, exercise therapy, medicines improving microcirculation; normal function of external respiration and normal pulmonary blood flow as well as adaptive training reaction when discharging from a hospital. Patients with risk factors of pneumonia transition into chronic non-specific pulmonary diseases require particular attention when making a decision on discharging and during the subsequent medical supervision.Проведено комплексное обследование 80 больных острой пневмонией (ОП) при поступлении, выписке из стационара и через 6— 12 месяцев после госпитализации. Исходы в хронические неспецифические заболевания легких (ХНЗЛ) наблюдались в 25% случаев. Анализ результатов обследования позволил установить следующие факторы риска перехода ОП в ХНЗЛ: тяжелое и затяжное течение заболевания; выделение из мокроты кишечной палочки или стрептококка; длительная массивная антибактериальная терапия; такие признаки неполного выздоровления при выписке из стационара, как кашель, неспецифические показатели воспаления, выявляемые при биохимическом исследовании крови, рентгенологически определяемые изменения, нарушение функции внешнего дыхания; снижение легочного кровотока при поступлении и особенно при выписке из стационара; адаптационная реакция стресса; хроническая алкогольная интоксикация. Благоприятным исходам способствует включение в комплексную терапию ФТЛ, ЛФК, средств, улучшающих микроциркуляцию; отсутствие изменений функции внешнего дыхания и легочного кровотока, а также адаптационная реакция тренировки при выписке из стационара. К группе больных ОП, имеющих факторы риска по переходу в ХНЗЛ, следует относиться особенно внимательно при решении вопроса о выписке и при дальнейшем диспансерном наблюдении

Ингибиторы отложений солей жесткости и коррозии для водооборотных систем охлаждения

It has been found that organophosphates are more efficient as inhibitors for calcium and magnesium carbonate formation and corrosion, whereas polyacrylic acid and its sulphonic modified derivatives act as stabilizers of carbonate dispersion. The binary mixture of organophosphate and polyacrylate demonstrates high efficiency of inhibiting action. The reagent mode and the complex cooling water treatment program at the Mineral Wax Plant have been developed, reducing the water consumption significantly.В результате исследований установлено, что органофосфаты более эффективны как ингибиторы процессов образования карбонатов кальция и магния и коррозии, в то время как полиакриловая кислота и ее сульфомодифицированные производные стабилизируют дисперсию карбонатов. Высокую эффективность ингибирующего действия в отношении солеотложений и коррозии проявляет бинарная смесь органофосфата и полиакрилата.На основе полученных результатов разработан реагентный режим и комплексная программа стабилизационной обработки оборотной воды на предприятии «Завод горного воска», благодаря чему коэффициент упаривания в открытом водооборотном цикле увеличен и уменьшен расход воды на подпитку и сброс

Progress in Monte Carlo design and optimization of the Cherenkov Telescope Array

The Cherenkov Telescope Array (CTA) will be an instrument covering a wide energy range in very-high-energy (VHE) gamma rays. CTA will include several types of telescopes, in order to optimize the performance over the whole energy range. Both large-scale Monte Carlo (MC) simulations of CTA super-sets (including many different possible CTA layouts as sub-sets) and smaller-scale simulations dedicated to individual aspects were carried out and are on-going. We summarize results of the prior round of large-scale simulations, show where the design has now evolved beyond the conservative assumptions of the prior round and present first results from the on-going new round of MC simulations.Comment: 4 pages, 5 figures. In Proceedings of the 33rd International Cosmic Ray Conference (ICRC2013), Rio de Janeiro (Brazil). All CTA contributions at arXiv:1307.223

Measurement of the e+e−→K+K−π+π−e^+e^- \to K^+K^-\pi^+\pi^- cross section with the CMD-3 detector at the VEPP-2000 collider

The process $e^+e^- \to K^+K^-\pi^+\pi^-$ has been studied in the center-of-mass energy range from 1500 to 2000\,MeV using a data sample of 23 pb$^{-1}$ collected with the CMD-3 detector at the VEPP-2000 $e^+e^-$ collider. Using about 24000 selected events, the $e^+e^- \to K^+K^-\pi^+\pi^-$ cross section has been measured with a systematic uncertainty decreasing from 11.7\% at 1500-1600\,MeV to 6.1\% above 1800\,MeV. A preliminary study of $K^+K^-\pi^+\pi^-$ production dynamics has been performed

Study of the process e+e−→ppˉe^+e^-\to p\bar{p} in the c.m. energy range from threshold to 2 GeV with the CMD-3 detector

Using a data sample of 6.8 pb$^{-1}$ collected with the CMD-3 detector at the VEPP-2000 $e^+e^-$ collider we select about 2700 events of the $e^+e^- \to p\bar{p}$ process and measure its cross section at 12 energy ponts with about 6\% systematic uncertainty. From the angular distribution of produced nucleons we obtain the ratio $|G_{E}/G_{M}| = 1.49 \pm 0.23 \pm 0.30$

Detection of the BL Lac object 1ES1426+428 in the Very High Energy gamma-ray band by the CAT Telescope from 1998-2000

The BL Lac Object 1ES 1426+428, at a red-shift of z=0.129, has been monitored by the CAT telescope from February 1998 to June 2000. The accumulation of 26 hours of observations shows a gamma-ray signal of 321 events above 250 GeV at 5.2 standard deviations, determined using data analysis cuts adapted to a weak, steep-spectrum source. The source emission has an average flux of Phi_diff(400 GeV) = 6.73 +/- 1.27stat +/- 1.45syst x 10^-11 /cm^-2/s/TeV, and a very steep spectrum, with a differential spectral index of gamma = -3.60 +/- 0.57 which can be refined to gamma = -3.66 +/- 0.41 using a higher flux data subset. If, as expected from its broad-band properties, the Very High Energy emission is hard at the source, these observations support a strong absorption effect of gamma-rays by the Intergalactic Infrared field.Comment: 4 pages, 3 figures, accepted for publication in A&A Letter