Применение современных информационных технологий при прогнозировании расхода воздуха для помещений здания

A special attention has been paid lately to creation of the required microclimate in buildings being used for various purposes. In order to create normal air environment in buildings it is necessary to develop forecasting models with the purpose of periodic regulation of air consumption which is supplied to the buildings according to parameters of external climate and character of the work to be carried out in these rooms.The paper considers possibilities to apply modern information technologies for forecasting air consumption. The proposed model allows to create a qualitative air regime in the rooms with due account of power saving.В последнее время уделяется особое внимание созданию требуемого микроклимата в зданиях различного назначения. Для создания нормальной воздушной среды в зданиях необходимо разработать прогнозные модели с целью периодического регулирования расхода воздуха, подаваемого в помещения, в зависимости от параметров наружного климата и характера выполняемой работы в этих помещениях.Рассматриваются возможности применения современных информационных технологий для прогнозирования расхода воздуха. Предложенная методика позволяет создать в помещениях качественный воздушный режим с учетом энергосбережения

Structure, bonding and morphology of hydrothermally synthesised xonotlite

The authors have systematically investigated the role of synthesis conditions upon the structure and morphology of xonotlite. Starting with a mechanochemically prepared, semicrystalline phase with Ca/Si=1, the authors have prepared a series of xonotlite samples hydrothermally, at temperatures between 200 and 250 degrees C. Analysis in each case was by X-ray photoelectron spectroscopy, environmental scanning electron microscopy and X-ray diffraction. The authors’ use of a much lower water/solid ratio has indirectly confirmed the ‘through solution’ mechanism of xonotlite formation, where silicate dissolution is a key precursor of xonotlite formation. Concerning the role of temperature, too low a temperature (~200 degrees C) fails to yield xonotlite or leads to increased number of structural defects in the silicate chains of xonotlite and too high a temperature (>250 degrees C) leads to degradation of the xonotlite structure, through leaching of interchain calcium. Synthesis duration meanwhile leads to increased silicate polymerisation due to diminishing of the defects in the silicate chains and more perfect crystal morphologies

EPR spectra of a GdMnO3 thin film on a SrTiO3 substrate

Electron paramagnetic resonance (EPR) spectra of a GdMnO3/SrTiO3 thin film in the X band have been measured in the temperature interval from 200 to 450 K. Signals from two types of paramagnetic centers have been observed in the spectra. The first paramagnetic center is a subsystem of Gd3+ ions, in the EPR spectrum of which the fine structure lines are resolved below 350 K. The second paramagnetic center is a system of manganese and gadolinium ions, in the EPR spectrum of which an exchange-narrowed line is observed with the width ΔH several times less than the width ΔH of an exchange-narrowed line observed in the GdMnO3 single crystal. Unusual magnetic properties are due to the mismatch of the lattice parameters of the GdMnO3 thin film and the SrTiO3 substrate. © 2013 Pleiades Publishing, Inc

Electron paramagnetic resonance studies of GdMnO 3 single crystal and thin film deposited onto a LaAlO 3 substrate

Electronic paramagnetic resonance (EPR) spectra of a GdMnO 3 single crystal and GdMnO 3/LaAlO 3 thin film have been measured at X- and Q-band frequencies in the temperature range from 4. 2 to 300 K. It is found that the EPR spectrum of a GdMnO 3 single crystal consists of only one broad exchange-narrowed line. Unusual magnetism is observed at the interface between the GdMnO 3 thin film and LaAlO 3 substrate, where it is possible to see the fine structure of the EPR spectrum for a Gd 3+ ion. The parameters characterizing the fine structure related to the Gd 3+ ion in the GdMnO 3 film deposited onto the LaAlO 3 substrate are determined. © 2012 Pleiades Publishing, Ltd

Ancient genomic time transect from the Central Asian Steppe unravels the history of the Scythians

The Scythians were a multitude of horse-warrior nomad cultures dwelling in the Eurasian steppe during the first millennium BCE. Because of the lack of first-hand written records, little is known about the origins and relations among the different cultures. To address these questions, we produced genome-wide data for 111 ancient individuals retrieved from 39 archaeological sites from the first millennia BCE and CE across the Central Asian Steppe. We uncovered major admixture events in the Late Bronze Age forming the genetic substratum for two main Iron Age gene-pools emerging around the Altai and the Urals respectively. Their demise was mirrored by new genetic turnovers, linked to the spread of the eastern nomad empires in the first centuries CE. Compared to the high genetic heterogeneity of the past, the homogenization of the present-day Kazakhs gene pool is notable, likely a result of 400 years of strict exogamous social rules.Introduction Results - The IA transition in the Kazakh Steppe - Admixture modeling of IA steppe populations - Post-IA genetic turnovers in the Kazakh Steppe - Dating ancient admixture - Present-day Kazakhs Discussion Material and methods - Radiocarbon dating - DNA extraction, library preparations, and sequencing - Modern DNA genotyping and quality controls - Ancient DNA data processing -- Raw data -- Authentication and contamination estimate -- Genotyping -- Sex determination -- Genetic relatedness estimation - Uniparental haplogroup assignment - Population structure analyses - Individual labeling and population grouping criteria - F-statistics and ancestry modeling - Admixture dating - CHROMOPAINTER and fineSTRUCTURE analyse

Temperature features of the EPR spectrum of GdMnO3: Single crystal and thin film GdMnO3/LaAlO3

Electron paramagnetic resonance (EPR) spectra of GdMnO3 single crystal and GdMnO3/LaAlO3 thin film are measured at Q-band frequency in the temperature range of 4.2 to 300 K. The temperature dependence of parameters of the spin Hamiltonian corresponding to the monoclinic symmetry of such paramagnetic centers as Gd3+ ions in the GdMnO 3/LaAlO3 film is determined. © 2013 Allerton Press, Inc

ГАРМОНИЯ ЗДОРОВЬЯ, КРАСОТЫ И АРОМАТНОГО ЖГУЧЕГО ВКУСА

Vegetables are considered essential for well-balanced diets since they supply vitamins, minerals, dietary fiber, and chemicals. Thechilli pepper fruits (Capsicum spp.), like many other vegetable crops, are a source of important biological components – the macro-, microelements and antioxidants. In this regard, the chilli pepper can be included in the category of dietetic foods.The most cultivated in Russia chilli pepper varieties belong to the Capsicum annuum L. At present, in the world and in Russia huge number of varieties are selected, with different color, shape and hot and pungent taste of the fruits with a high content of carotenoids, capsaicinoids and ascorbic acid. These varieties belong to the species C. chinense, C. frutescens, C. baccatum and C. pubescens. The fruits of these forms and products of their processing are suitable for industrial applications and are the basis of many sauces, pastes, ketchups, and ingredients, which is used in food, pharmaceutical, confectionery, alcoholic beverage, military and other industries. Chilli peppers, in addition to nutritional value, are ideal for ornamental horticulture, because of the compactness or vice versa weeping form of the stems, suspended like bells and differently colored like a rainbow, fruits, colorful combinations color of leaves and fruits. You can use them and direct planting in the ground, and as a potting culture in balconies, loggias, winter gardens, in combination with other plants.Увеличение разнообразия овощной продукции и улучшения ее качества является результатом постоянной селекции на биохимические признаки. Одной из наиболее витаминной овощной продукции является перец рода Capsicum. В настоящее время он широко распространен по всему миру. Плоды перца используют не только как пищу или пряность, но и как терапевтическое и профилактическое средство. Большинство выращиваемых в России сортов перца острого относятся к виду Capsicum annuum L. В настоящее время, как в мире, так и в России, создано и широко распространено огромное число сортов с различной окраской, формой и очень острым и жгучим вкусом плодов, высоким содержанием каротиноидов, капсаициноидов и аскорбиновой кислоты. Эти сорта относятся как к вышеназванному виду, так и C. chinense, C. frutescens, C. baccatum и C.pubescens. Плоды этих форм и продукты их переработки пригодны для промышленного применения, и являются основой многих соусов, паст, кетчупов, и ингредиентов, которые используют в пищевой, фармакологической, кондитерской, ликероводочной, военной и др. отраслей промышленности. Перцы чилли, кроме питательной ценности, идеально подходят для декоративного садоводства, их можно использовать и прямой посадкой в грунт, и как горшечную культуру на балконах, лоджиях, патио, зимних садах в сочетании с другими растениями. Дано описание сортов острого перца: Жаркий сезон, Жгучий король (Capsicum chinense Jacq.); Эврика, Рождественский букет (Capsicum frutescens L.)

Nature of the Dirac gap modulation and surface magnetic interaction in axion antiferromagnetic topological insulator MnBi2Te4A

Modification of the gap at the Dirac point (DP) in axion antiferromagnetic topological insulator MnBi2Te4 and its electronic and spin structure have been studied by angle- and spin-resolved photoemission spectroscopy (ARPES) under laser excitation at various temperatures (9-35 K), light polarizations and photon energies. We have distinguished both large (60-70 meV) and reduced (< 20 meV) gaps at the DP in the ARPES dispersions, which remain open above the Neel temperature (T-N = 24.5 K). We propose that the gap above T-N remains open due to a short-range magnetic field generated by chiral spin fluctuations. Spin-resolved ARPES, XMCD and circular dichroism ARPES measurements show a surface ferromagnetic ordering for the "large gap" sample and apparently significantly reduced effective magnetic moment for the "reduced gap" sample. These observations can be explained by a shift of the Dirac cone (DC) state localization towards the second Mn layer due to structural disturbance and surface relaxation effects, where DC state is influenced by compensated opposite magnetic moments. As we have shown by means of ab-initio calculations surface structural modification can result in a significant modulation of the DP gap.The authors acknowledge support by the Saint Petersburg State University (Grant No. 51126254), Russian Science Foundation (Grant No. 18-12-00062 in part of the photoemission measurements and Grant No. 18-12-00169 in part of the electronic band structure calculations) and by Russian Foundation of Basic Researches (Grants Nos. 18-52-06009 and 20-32-70179) and Science Development Foundation under the President of the Republic of Azerbaijan (Grant No. EI F-BGM-4-RFTF1/2017-21/04/1-M-02). A. Kimura was financially supported by KAKENHI (Grants No. 17H06138, No. 17H06152, and No. 18H03683). S.V.E. and E.V.C. acknowledge support by the Fundamental Research Program of the State Academies of Sciences (line of research III.23.2.9). The authors kindly acknowledge the HiSOR staff and A. Harasawa at ISSP for technical support and help with the experiment. The ARPES measurements at HiSOR were performed with the approval of the Proposal Assessing Committee (Proposal Numbers: 18BG027 and 19AG048). XAS and XMCD measurements were performed at BL23SU of SPring-8 (Proposal Nos. 2018A3842 and 2018B3842) under the Shared Use Program of JAEA Facilities (Proposal Nos. 2018A-E25 and 2018B-E24) with the approval of Nanotechnology Platform project supported by MEXT, Japan (Proposal Nos. A-18-AE-0020 and A-18-AE-0042). M. M. Otrokov acknowledges the support by Spanish Ministerio de Ciencia e Innovacion (Grant no. PID2019-103910GB-I00). K. Yaji was financially supported by KAKENHI (Grants No. 18K03484)

One-step isolation and biochemical characterization of a highlyactive plant PSII monomeric core

We describe a one-step detergent solubilization protocol for isolating a highly active form of Photosystem II (PSII) from Pisum sativum L. Detailed characterization of the preparation showed that the complex was a monomer having no light harvesting proteins attached. This core reaction centre complex had, however, a range of low molecular mass intrinsic proteins as well as the chlorophyll binding proteins CP43 and CP47 and the reaction centre proteins D1 and D2. Of particular note was the presence of a stoichiometric level of PsbW, a low molecular weight protein not present in PSII of cyanobacteria. Despite the high oxygen evolution rate, the core complex did not retain the PsbQ extrinsic protein although there was close to a full complement of PsbO and PsbR and partial level of PsbP. However, reconstitution of PsbP and PsbPQ was possible. The presence of PsbP in absence of LHCII and other chlorophyll a/b binding proteins confirms that LHCII proteins are not a strict requirement for the assembly of this extrinsic polypeptide to the PSII core in contrast with the conclusion of Caffarri et al. (2009)