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QCD sum rule study of J^(P)=1^(±)exotic states with two heavy quarks in the molecular picture

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Chinese Physics C 2024年第6期48卷 31-37页

作者： T.M.aliev S.Bilmis M.Savcı Department of Physics Middle East Technical UniversityAnkara06800Turkey TUBITAK ULAKBIM Ankara06510Turkey

In this study,the spectroscopic parameters of exotic molecular states composed of mesons containing two heavy quarks(scalar-axial and pseudoscalar-axial meson combinations)are investigated within the QCD sum *** findings reveal that molecular states containing charm quarks do not form bound states,whereas states with b-quarks can form exotic molecular *** observation has significant implications for understanding the structure of these exotic states.

关键词： QCD sum rules exotic mesons molecular states

DETECTOR BASED APPROACH IN HIGH BRIGHTNESS LED MEASUREMENTS

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DETECTOR BASED APPROACH IN HIGH BRIGHTNESS LED MEASUREMENTS

Photonuclear reactions on stable isotopes of selenium at bremsstrahlung end-point energies of 10-23 MeV

26th Session of the CIE

作者： aliev eugeny Anikin Peter Azyzyan Henry Shishov Alexander Stakharny Sergey Stolyarevskaya Raisa ACOL TECHNOLOGIES S.A.

Being one of the focal points of light and engineering research of the 21century,LED measurements is a very relevant subject *** performance measurements and lack of unified standards continue to represent a challenge for the LED *** an in-house LED and Chip Research & Diagnostic Laboratory,company is able to ensure the compliance of the developed products with the international standards in the field of photometry and radiometry and conducts an independent research of its own focusing on the major industry LED measurement challenges,selective results of which are shared in this presentation based on the findings of the research conducted by ACOL Technologies LED and Chip Research & Diagnostic Laboratory and tackles a number of questions related to the methods of measurements,instruments and their calibration,results of measurements of LED applications on the basis of absolute detector-based photometry and radiometry and relative spectrum measurements.

关键词： Photometric head spectral responsivity spectral distribution of irradiance colour correction factor lumen-equivalent

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Chinese Physics C 2024年第2期48卷 91-103页

作者： F.A.Rasulova N.V.Aksenov S.I.Alekseev R.A.aliev S.S.Belyshev I.Chuprakov N.Yu.Fursova A.S.Madumarov J.H.Khushvaktov A.A.Kuznetsov B.S.Yuldashev Joint Institute for Nuclear Research DubnaRussia Institute of Nuclear Physics of the Academy of Sciences of the Republic of Uzbekistan TashkentUzbekistan Faculty of Chemistry of Lomonosov Moscow State University MoscowRussia National Research Center"Kurchatov Institute" MoscowRussia Skobeltsyn Institute of Nuclear Physics of Lomonosov Moscow State University MoscowRussia Faculty of Physics of Lomonosov Moscow State University MoscowRussia Institute of Nuclear Physics AlmatyRepublic of Kazakhstan

In this study,experiments were performed at bremsstrahlung end-point energies of 10-23 MeV with the beam from the MT-25 microtron using theγ-activation *** experimental values of relative yields were compared with theoretical results obtained on the basis of TALYS with the standard parameters and the combined model of photonucleon *** isospin splitting in the combined model of photonucleon reactions allows describing experimental data on reactions with proton escape in the energy range from 10 to 23 ***,taking into account isospin splitting is necessary for a correct description of the decay of the giant dipole resonance.

关键词： bremsstrahlung photon cross section isospin splitting giant dipole resonance

Analyzing the ZnO and CH_(3)NH_(3)PbI_(3) as Emitter Layer for Silicon Based Heterojunction Solar Cells

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Computers, Materials & Continua 2023年第1期74卷 575-590页

作者： Jasurbek Gulomov Oussama Accouche Rayimjon aliev Marc AZAB Irodakhon Gulomova Renewable Energy Source Laboratory Andijan State UniversityUzbekistan College of Engineering and Technology American University of the Middle EastKuwait

Today,it has become an important task to modify existing traditional silicon-based solar cell factory to produce high-efficiency silicon-based heterojunction solar cells,at a lower ***,the aim of this paper is to analyze CH_(3)NH_(3)PbI_(3) and ZnO materials as an emitter layer for p-type silicon wafer-based heterojunction solar ***_(3)NH_(3)PbI_(3) and ZnO can be synthesized using the cheap Sol-Gel method and can form n-type *** propose to combine these two materials since CH_(3)NH_(3)PbI_(3) is a great light absorber and ZnO has an optimal complex refractive index which can be used as antireflection *** photoelectric parameters of n-CH_(3)NH_(3)PbI_(3)/p-Si,n-ZnO/p-Si,and n-Si/p-Si solar cells have been studied in the range of 20–200 nm of emitter layer *** has been found that the short circuit current for CH_(3)NH_(3)PbI_(3)/p-Si and n-ZnO/p-Si solar cells is almost the same when the emitter layer thickness is in the range of 20–100 ***,when the emitter layer thickness is greater than 100 nm,the short circuit current of CH_(3)NH_(3)PbI_(3)/p-Si exceeds that of n-ZnO/*** optimal emitter layer thickness for n-CH_(3)NH_(3)PbI_(3)/p-Si and n-ZnO/p-Si was found equal to 80 *** this value,the short-circuit current and the fill factor were estimated around 18.27 mA/cm^(2) and 0.77 for n-CH_(3)NH_(3)PbI_(3)/p-Si and 18.06 mA/cm^(2) and 0.73 for n-ZnO/*** show that the efficiency of n-CH_(3)NH_(3)PbI_(3)/p-Si and n-ZnO/p-Si solar cells with an emitter layer thickness of 80 nm are 1.314 and 1.298 times greater than efficiency of traditional n-Si/p-Si for the same *** findings will help perovskites materials to be more appealing in the PV industry and accelerate their development to become a viable alternative in the renewable energy sector.

关键词： Solar cell CH_(3)NH_(3)PbI_(3) ZnO silicon heterojunction simulation

On the Gauss-Weierstrass Summability of Multiple Trigonometric Series at μ-smoothness Points

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Acta Mathematica Sinica,English Series 2011年第4期27卷 741-746页

作者： Sinem SEZER Ilham A. aliev Department of Mathematics Akdeniz University 07058 Antalya Turkey

The notion of μ-smoothness points of periodic functions of several variables is introduced and the rate of convergence of the Gauss-Weierstrass means of relevant Fourier series at these points is investigated.

关键词： Multiple Fourier series Fourier transform Gauss-Weierstrass summability modulus ofcontinuity

Efficacy and safety of COVID-19 vaccination in patients with cirrhosis

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World Journal of Hepatology 2022年第7期14卷 1470-1479页

作者： Vladimir Ivashkin Albina Ismailova Ksenia Dmitrieva Roman Maslennikov Maria Zharkova Salekh aliev Vyacheslav Bakhitov Vadim Marcinkevich Department of Internal Medicine Gastroenterology and HepatologySechenov UniversityMoscow 119435Russia Department of Internal Diseases Consultative and Diagnostic Center№2 of Department of HealthMoscow 107764Russia Administration Consultative and Diagnostic Center№2 of Department of HealthMoscow 107764Russia The First Hospital Surgery Department Pirogov Russian National Research Medical UniversityMoscow 117997Russia

BACKGROUND The clinical efficacy and safety of vaccination against novel coronavirus disease 2019(COVID-19)in patients with cirrhosis have not been evaluated *** To evaluate the clinical efficacy and safety of vaccination against COVID-19 in patients with *** This was a retrospective cohort study of patients with *** first cohort included patients vaccinated with Gam-COVID-Vac(Sputnik V);the second one consisted of unvaccinated *** The study included 89 vaccinated patients and 148 unvaccinated *** were 4 cases of COVID-19 in the vaccinated group and 24 cases in the unvaccinated group(P=0.035).No severe cases of COVID-19 were revealed in the vaccinated group,while there were 12 ones in the unvaccinated group(P=0.012)with 10 deaths detected(P=0.012).The vaccine efficacy was 69.5%(95%confidence interval[CI]:18.5%-94.4%)against symptomatic cases of COVID-19,100%(95%CI:25.1%-100.0%)against severe cases,and 100%(95%CI:1.6%-100.0%)against death associated with *** efficacy of full vaccination with revaccination against symptomatic cases of COVID-19 was 88.3%(95%CI:48.0%-99.6%).The overall mortality rate was higher in the unvaccinated group than in the vaccinated group(17.1%vs 3.0%;P=0.001).Higher Child-Turcotte-Pugh class cirrhosis(hazard ratio[HR]=4.13,95%CI:1.82-9.35)and higher age(HR=1.08,95%CI:1.04-1.15)were independent predictors of overall mortality,while vaccination had a protective effect(HR=0.09,95%CI:0.01-0.76).There was no significant difference in liver-related mortality(P=0.135)or the incidence of liver decompensation(P=0.077),bleeding esophageal varices(P=0.397),and vascular events(P=0.651)between the two groups of *** Vaccination against COVID-19 in patients with cirrhosis is effective and safe.

关键词： Coronavirus Vaccination Revaccination Booster SARS-CoV-2 Sputnik V

Supercritical CO_2: Properties and Technological Applications-A Review

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Journal of Thermal Science 2019年第3期28卷 394-430页

作者： NIKOLAI Polikhronidi RABIYAT Batyrova ASLAN aliev ILMUTDIN Abdulagatov Thermodynamics of Fluids and Critical Phenomena Institute of Physics of the Dagestan Scientific Center of the Russian Academy of Sciences Mountain Botanical Garden of the Dagestan Scientific Center of the Russian Academy of Sciences Thermophysics Division Geothermal Research Institute of the Russian Academy of Sciences Physical Chemistry Department Dagestan State University

The main goal of the present paper is to assess the available information so as to obtain a general procedure for dealing with the critical enhancement of the thermodynamic and transport properties of supercritical CO_2 and CO_2 containing binary mixtures for practical and scientific applications. The present review provides comprehensive analysis of the thermodynamic and transport properties of supercritical carbon dioxide and CO_2 containing binary mixtures(experiment and theory) and their various technological and scientific applications in different natural and industrial processes. The available information for the thermodynamic and transport properties(experiment and theory) enhancement(anomaly) of supercritical carbon dioxide and SC CO_2 + solute mixtures is comprehensively reviewed. The effect of long-range order parameter fluctuations on the thermodynamic and transport properties of supercritical fluids(SC CO_2) will be discussed. Simplified scaling type equation based on mode-coupling theory of critical dynamics with two critical amplitudes and one cutoff wave number as fluid-specific parameters was used to accurately predict of the transport properties of supercritical carbon dioxide. The recommended values of the specific parameters(asymptotic critical amplitudes) of the carbon dioxide for practical(prediction of the thermodynamic and transport properties of the supercritical CO_2 for technological applications) and scientific use were provided. The role of the critical line shapes of the carbon dioxide containing binary mixture(SC CO_2+solvent) in determination of the critical behavior of the mixture near the critical point of pure supercritical solvent(CO_2) is discussed. Krichevskii parameter concept for a description of thermodynamic behavior of dilute near-critical SC CO_2+solute mixtures is also discussed. The structural and thermodynamic properties of the carbon dioxide containing binary mixtures near the critical point of pure solvent(CO_2) are d

关键词： carbon dioxide critical point equation of state supercritical fluid thermodynamic properties transport properties

Indentation fracture toughness of single-crystal Bi2Te3 topological insulators

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Nano Research 2016年第4期9卷 1032-1042页

作者： Caterina Lamuta Anna Cupolillo Antonio Politano Ziya S. aliev Mahammad B. Babanly Evgueni V. Chulkov Leonardo Pagnotta Department of Mechanical Energy and Management Engineering University ofCalabria Ponte P Bucci Cuba 44C 87036 Rende Italy Department of Physics University of Calabria Ponte P Bucci Cuba 31 C 87036 Rende Italy Institute of Catalysis and Inorganic Chemistry ANAS AZ1143 Baku Azerbaijian Institute of Physics ANAS AZ1143 Baku Azerbaijian Donostia International Physics Center (DIPC) Paseo de Manuel Lardizabal 4 20018 San Sebastian/Donostia Spain Departamento de Fisica de Materiales Universidad del Pals Vasco Apartado 1072 20080 San Sebastidn/Donostia Spain Centro de Fisica de Materiales CFM-Materials Physics Center MPC Centro Mixto CSIC-UPV/EHU Paseo de Manuel Lardizabal 5 20018 San Sebastion/Donostia Spain Saint Petersburg State University 198504 Saint Petersburg Russian Federation Tomsk State University 634050 Tomsk Russian Federation

Bismuth teUuride （Bi2Te3） is one of the most important commercial thermoelectric materials. In recent years, the discovery of topologically protected surface states in Bi chalcogenides has paved the way for their application in nanoelectronics. Determination of the fracture toughness plays a crucial role for the potential application of topological insulators in flexible electronics and nanoelectro- mechanical devices. Using depth-sensing nanoindentation tests, we investigated for the first time the fracture toughness of bulk single crystals of Bi2Te3 topological insulators, grown using the Bridgmantockbarger method. Our results highlight one of the possible pitfalls of the technology based on topological insulators.

关键词： topological insulators bismuth telluride (Bi2Te3) fracture toughness nanoindentation

Water Productivity of Poplar and Paulownia on Two Sites in Kyrgyzstan, Central Asia

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Journal of Water Resource and Protection 2021年第4期13卷 293-308页

作者： Niels Thevs Clara Baier Kumar aliev World Agroforestry Central Asia Office Bishkek Kyrgyzstan Gesellschaft für Internationale Zusammenarbeit (GIZ) Bonn Germany Sachsen-Leinen e.V. Markkleeberg Germany

As Central Asia is a region with wide spread water scarcity as a result of excessive irrigation of agriculture, land use changes deserve research about potential impacts on the already strained water resources. Poplars have a long tradition as agroforestry tree across Central Asia, while paulownia is new to the region, but has been gaining extreme attention as a potential plantation and/or agroforestry tree. Therefore, the water productivity of those two tree species is investigated here on 3-year-old trees, in order to provide insights in how far the newly introduced Paulownia could put additional strain on water resources compared to paulownia. Poplar (P. deltoides × nigra) increased the stem biomass by 5.4 kg at an average water consumption of 4.18 l/d (water productivity 6.79 g/l). Paulownia’s (Paulownia tomentosa × fortunei) stem biomass grew by 4.81 kg at 2.36 l/d in average (water productivity 11.9 g/l). Expanding paulownia would not exert more pressure on Central Asia’s water resources than an expansion of poplar.

关键词： Fast-Growing Trees Water Consumption Sap Flow Central Asia Semi-Arid Climate