TEMPERATURE BEHAVIOR OF THE ABSORPTION EDGE IN BI-IMPLANTED HONGAN SILICA GLASS

The effect of thermal and structural disorder on the electronic structure of glass silicon dioxide (Hongan Silica Glass) irradiated with 30 KeV bismuth ions Φ = 1× 1017 cm-2 is in-vestigated by the McPherson VuVAS 1000PL VUV spectrometer in the 120-500 nm wave-length range

Развитие российской системы инновационного образования в условиях глобализации

Development of global education under the conditions of globalization is seen as a challenge to Russian education, which affects the development of national educational system. The impact factor is determined by the measures of the government, regional authorities, scientific-pedagogical community, business sector and studying people. The growth of economic, technological and humanitarian significance of knowledge, high competition in the knowledge and technology market have resulted in significant changes in higher education. Currently, the universities deal with innovative development of enterprises, science and research, application of the results obtained; the universities define cultural and human development of society. Globalization has brought together all areas of society into the tangle where hierarchical system of development has been transformed into the system where the priority is either functional and tensor and various activities became either super-level and sublevel; the subsytems and their elements became a complicated structure of relations. This globalist system can be imagery described as a system where every man is for himself; every man is for all people; all people are for every man and all people are for all people. The education has become either the consumer of the products produced by other branches of social development and the supplier of its own services. Finally, it has been segregated into specific branch of society with economic laws and producing specific features. National education should aim at development of regional education systems that create advanced technologies in all the branches of economy, integrate into the world educational space and influence its development by means of suggesting its own models of innovative education. The authors see the system-based approach to education system, its relation to other social activities and its aims as one of the instrument for building the models of innovative education in Russia.Развитие мировой системы образования в условиях глобализации является вызовом для российской системы образования, что, безусловно, влияет на развитие национальной образовательной системы. Фактор этого воздействия будет во многом определяться действиями федерального центра, региональной властью, научно-педагогического сообщества, производственного сектора, людей, получающих образование.Рост экономического, технологического, гуманитарного значения знаний, усиление конкуренции на рынке знаний и технологий привели к значительным изменениям в высшей школе. Сегодня вузы включены в процесс инновационного развития предприятий, научно-исследовательскую и внедренческую работу полученных результатов, определяют культурный и гуманитарный вектор развития общества. В условиях глобализации все области деятельности общества взаимосвязаны настолько тесно, что иерархическая система направлений развития преобразовалась в структуру, где приоритет становится не только функциональным, но и тензорным, а разные виды деятельности выступают одновременно и надуровневыми, и подуровневыми, подсистемы и их элементы приобретают слож ную структуру связей. Можно образно назвать такую глобалистскую систему системой каждого за себя, каждого за всех, всех за каждого и всех за всех. Мировая система образования – и потребитель продуктов деятельности других отраслей развития общества, и поставщик своих услуг, она выделилась в самостоятельную отрасль деятельности общества с экономическими законами развития как производитель. Перед российской образовательной системой должны быть поставлены задачи по развитию региональных систем образования, способных обеспечить создание прорывных технологий во всех отраслях экономики; интеграции в мировое образовательное пространство и влиянию на его развитие с помощью моделей инновационного образования. В качестве одного из инструментов построения моделей инновационного образования предлагается системный подход к системе образования, ее связям с другими областями деятельности общества, а также к целям, стоящим перед образовательной системой России

ПРОДУКТЫ КЛАССИФИКАЦИИ И ТОНКОГО ГРОХОЧЕНИЯ ЗАМКНУТОГО ЦИКЛА ИЗМЕЛЬЧЕНИЯ МЕДНО-ЦИНКОВОЙ РУДЫ

The study covers the possibility to improve the quality of copper-zinc ore prior to its enriching using screens for hydraulic fine screening in closed grinding cycles. The paper presents the results obtained when studying the products of copper-zinc ore separation in the RWS 75 hydrocyclone and in the Kroosh ULS 1,5×0,6 screen. It was found that the use of screens (in contrast to hydrocyclones) for hydraulic fine screening in closed cycles for copper-zinc ore grinding will: 1) reduce the circulating load in closed grinding cycles and the circulation of fine size grades with the oversize product; 2) decrease potential overgrinding of ore minerals; 3) enhance the «quality» of enriched raw materials by increasing the mass fraction of size grades optimal for subsequent flotation, as well as by lowering the content of coarse size grades in the final product of the cycle and reducing the transition of copper into fine size grades. Исследована возможность повышения качества медно-цинковой руды перед обогащением при применении грохотов для тонкого гидравлического грохочения в замкнутых циклах измельчения. Приведены результаты изучения продуктов разделения медно-цинковой руды в гидроциклоне RWS 75 и грохоте Kroosh ULS 1,5×0,6. Установлено, что применение грохотов (по сравнению с гидроциклонами) для тонкого гидравлического грохочения в замкнутых циклах измельчения мед- но-цинковых руд позволит: снизить циркулирующую нагрузку в замкнутых циклах измельчения и циркуляцию тонких классов крупности с надрешетным продуктом; сократить потенциальное переизмельчение рудных минералов; повысить «качество» обогащаемого сырья путем увеличения массовой доли классов крупности, оптимальных для последующего флотационного обогащения, а также за счет уменьшения содержания крупных классов крупности в конечном продукте цикла и снижения перехода меди в тонкие классы крупности.

Spectroscopic characterization of atmospheric pressure um-jet plasma source

A radio frequency um-jet plasma source is studied using He/O2 mixture. This um-jet can be used for different applications as a source of chemical active species e.g. oxygen atoms, molecular metastables and ozone. Using absolutely-calibrated optical emission spectroscopy and numerical simulation, the gas temperature in active plasma region and plasma parameters (electron density and electron distribution function) are determined. Concentrations of oxygen atoms and ozone in the plasma channel and in the effluent of the plasma source are measured using emission and absorption spectroscopy. To interpret the measured spatial distributions, the steady-state species' concentrations are calculated using determined plasma parameters and gas temperature. At that the influence of the surface processes and gas flow regime on the loss of the active species in the plasma source are discussed. The measured spatial distributions of oxygen atom and ozone densities are compared with the simulated ones.Comment: 29 pages, 10 figure

A LOW-TEMPERATURE THERMOLUMINESCENCE OF FUNCTIONAL MATERIALS BASED ON ALKALI HALIDE CRYSTALS

Low-temperature thermoluminescence (TL), temperature dependences and spectra of lu-minescence upon band-to-band excitation were studied (T=6–380 K, E=1.2–6.2 eV), the ef-fect of radiation-induced shallow electron states on the optical properties is discussed.Работа выполнена при частичной поддержке международного проекта грантового финансирования Комитета науки МОН РК (ИРН АР08855672)

Multiplicity dependence of jet-like two-particle correlations in p-Pb collisions at sNN\sqrt{s_{NN}} = 5.02 TeV

Two-particle angular correlations between unidentified charged trigger and associated particles are measured by the ALICE detector in p-Pb collisions at a nucleon-nucleon centre-of-mass energy of 5.02 TeV. The transverse-momentum range 0.7 $< p_{\rm{T}, assoc} < p_{\rm{T}, trig} <$ 5.0 GeV/$c$ is examined, to include correlations induced by jets originating from low momen\-tum-transfer scatterings (minijets). The correlations expressed as associated yield per trigger particle are obtained in the pseudorapidity range $|\eta|<0.9$. The near-side long-range pseudorapidity correlations observed in high-multiplicity p-Pb collisions are subtracted from both near-side short-range and away-side correlations in order to remove the non-jet-like components. The yields in the jet-like peaks are found to be invariant with event multiplicity with the exception of events with low multiplicity. This invariance is consistent with the particles being produced via the incoherent fragmentation of multiple parton--parton scatterings, while the yield related to the previously observed ridge structures is not jet-related. The number of uncorrelated sources of particle production is found to increase linearly with multiplicity, suggesting no saturation of the number of multi-parton interactions even in the highest multiplicity p-Pb collisions. Further, the number scales in the intermediate multiplicity region with the number of binary nucleon-nucleon collisions estimated with a Glauber Monte-Carlo simulation.Comment: 23 pages, 6 captioned figures, 1 table, authors from page 17, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/161

Multi-particle azimuthal correlations in p-Pb and Pb-Pb collisions at the CERN Large Hadron Collider

Measurements of multi-particle azimuthal correlations (cumulants) for charged particles in p-Pb and Pb-Pb collisions are presented. They help address the question of whether there is evidence for global, flow-like, azimuthal correlations in the p-Pb system. Comparisons are made to measurements from the larger Pb-Pb system, where such evidence is established. In particular, the second harmonic two-particle cumulants are found to decrease with multiplicity, characteristic of a dominance of few-particle correlations in p-Pb collisions. However, when a $|\Delta \eta|$ gap is placed to suppress such correlations, the two-particle cumulants begin to rise at high-multiplicity, indicating the presence of global azimuthal correlations. The Pb-Pb values are higher than the p-Pb values at similar multiplicities. In both systems, the second harmonic four-particle cumulants exhibit a transition from positive to negative values when the multiplicity increases. The negative values allow for a measurement of $v_{2}\{4\}$ to be made, which is found to be higher in Pb-Pb collisions at similar multiplicities. The second harmonic six-particle cumulants are also found to be higher in Pb-Pb collisions. In Pb-Pb collisions, we generally find $v_{2}\{4\} \simeq v_{2}\{6\}\neq 0$ which is indicative of a Bessel-Gaussian function for the $v_{2}$ distribution. For very high-multiplicity Pb-Pb collisions, we observe that the four- and six-particle cumulants become consistent with 0. Finally, third harmonic two-particle cumulants in p-Pb and Pb-Pb are measured. These are found to be similar for overlapping multiplicities, when a $|\Delta\eta| > 1.4$ gap is placed.Comment: 25 pages, 11 captioned figures, 3 tables, authors from page 20, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/87

Charge separation relative to the reaction plane in Pb-Pb collisions at sNN=2.76\sqrt{s_{\rm NN}}= 2.76 TeV

Measurements of charge dependent azimuthal correlations with the ALICE detector at the LHC are reported for Pb-Pb collisions at $\sqrt{s_{\rm NN}} = 2.76$ TeV. Two- and three-particle charge-dependent azimuthal correlations in the pseudo-rapidity range $|\eta| < 0.8$ are presented as a function of the collision centrality, particle separation in pseudo-rapidity, and transverse momentum. A clear signal compatible with a charge-dependent separation relative to the reaction plane is observed, which shows little or no collision energy dependence when compared to measurements at RHIC energies. This provides a new insight for understanding the nature of the charge dependent azimuthal correlations observed at RHIC and LHC energies.Comment: 12 pages, 3 captioned figures, authors from page 2 to 6, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/286