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High Resolution Spectroscopy of Halo Stars in the Near Uv and Blue Region I. Spectra in the Wavelength Region 3550-5000 A

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Chinese Journal of Astronomy and Astrophysics 2006年第5期6卷 579-587页

作者： v. G. Klochkova Gang Zhao S. v. ermakov v. e. Panchuk National Astronomical Observatories Chinese Academy of Sciences Beijing 100012 Special Astrophysical Observatory Russian Academy of Sciences Nighnij Arkhyz 369167Karachai-Cherkessia Russia

An atlas of high resolution （R = 60 000） CCD-spectra in the wavelength range 3500-5000A is presented for four objects in metallicity range -3.0 〈 [Fe/H] 〈 -0.6, temperature range 4750 〈 Teff 〈 5900K, and surface gravity range 1.6 〈 Igg 〈 5.0. We describe the calibration of the stellar atmospheric parameters using Alonso＇s formula based on the method of infrared flux and outline the determination of the abundances of a total number of 25 chemical elements. An analysis of the abundance determination errors for different chemical elements is carried out, and a method is provided for the observations and reduction of spectral material. Properties of the method of producing an atlas of spectra and line identifications are described.

关键词： stars halo stars - stars G, K-type - stars spectra - stars Uv-spectra

CHeMICAL MODULATION OF PHOTODYNAMIC INJURY OF GLIAL CeLLS

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Journal of Innovative Optical Health Sciences 2011年第4期4卷 429-435页

作者： M.A.KOMANDIROv e.A.KNYAZevA Y.P.FeDOReNKO M.v.RUDKOvSKII e.v.BeReZHNAYA v.D.KOvALevA A.B.UZDeNSKY Department of Biophysics and Biocybernetics Institute of Neurocybernetics Southern Federal University 194/1 Stachky Avenue Rostov-on-Don344090Russia

Photodynamic therapy based on photogeneration of cytotoxic singlet oxygen and following oxidative stress is currently used in neuro-oncology for destruction of brain ***,along with a tumor,it damages healthy neurons and glial *** studied the involvement of the glutamate-related signaling pathway in photodynamic damage to normal glial cells in the crayfish stretch *** model object consists of a single neuron surrounded by glial *** was photosensitized with alumophthalocyanine Photosens and irradiated by the diode laser(670 nm).Application of enzyme inhibitors and ion channels modulators showed that exogenous L-glutamate decreased photoinduced apoptosis of crayfish glial *** natural neuroglial mediator N-acetylaspartylglutamate,which releases glutamate after splitting by glutamate carboxypeptidase II,also inhibited photoinduced *** of glutamate carboxypeptidase II,oppositely,enhanced glial *** confirmed the antiapoptotic activity of *** agonist NMDA or inhibitor of NMDA receptors MK801 did not influence photodynamic death of glial cells,i.e.,these receptors did not participate in glial *** of metabotropic glutamate receptors mGluRI with AP-3 reduced PDT-induced apoptosis of glial ***,chemical modifiers of various signaling processes can modulate photoinduced necrosis or apoptosis of glial cells and thus modify efficiency of photodynamic therapy.

关键词： Glia necrosis apoptosis glutamate

estimate of parameters changing of the Lymantria dispar artificial population in different environmental conditions using the quasispecies model

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International Journal of Modeling, Simulation, and Scientific Computing 2020年第5期11卷 226-236页

作者： A.v.Sedelnikov e.S.Khnyryova Samara National Research University 34Moskowskoe ShosseSamara 443086Russia

This paper gives an interpretation of the quasispecies concept for an experiment of growing the Lymantria dispar artificial *** changes estimate in the population parameters for a significant change in environmental conditions at the stage of hatching caterpillars from the eggs was *** numerical and two random parameters were used for quantitative *** characterize the development of individuals of the population at this *** parameter changes significance was verified with using statistical *** results obtained do not contradict the quasispecies *** use of fuzzy sets describes the transition from one quasispecies to another at a significant change in environmental conditions.

关键词： Quasispecies evolution Lymantria dispar artificial population population development parameters fuzzy sets

Design of Online vitals Monitor by Integrating Big Data and IoT

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Computer Systems Science & engineering 2023年第3期44卷 2469-2487页

作者： e.Afreen Banu v.Rajamani Department of Computer Science engineering Vel Tech Multitech Dr.Rangarajan Dr.Sakunthala Engineering CollegeChennai600062India Department of electronics&Communication engineering Vel Tech Multitech Dr.Rangarajan Dr.Sakunthala Engineering CollegeChennai600062India

In this work,we design a multisensory IoT-based online vitals monitor(hereinafter referred to as the vITALS)to sense four bedside physiological parameters including pulse(heart)rate,body temperature,blood pressure,and periph-eral oxygen ***,the proposed system constantly transfers these signals to the analytics system which aids in enhancing diagnostics at an earlier stage as well as monitoring after *** core hardware of the vITALS includes commercial off-the-shelf sensing devices/medical equipment,a powerful microcontroller,a reliable wireless communication module,and a big data analytics *** extracts human vital signs in a pre-programmed interval of 30 min and sends them to big data analytics system through the WiFi module for further *** use Apache Kafka(to gather live data streams from connected sen-sors),Apache Spark(to categorize the patient vitals and notify the medical pro-fessionals while identifying abnormalities in physiological parameters),Hadoop Distributed File System(HDFS)(to archive data streams for further analysis and long-term storage),Spark SQL,Hive and Matplotlib(to support caregivers to access/visualize appropriate information from collected data streams and to explore/understand the health status of the individuals).In addition,we develop a mobile application to send statistical graphs to doctors and patients to enable them to monitor health conditions *** proposed system is implemented on three patients for 7 days to check the effectiveness of sensing,data processing,and data transmission *** validate the system accuracy,we compare the data values collected from established sensors with the measured readouts using a commercial healthcare monitor,the Welch Allyn®Spot *** pro-posed system provides improved care solutions,especially for those whose access to care services is limited.

关键词： Big data analytics blood pressure body temperature physiological parameters pulse rate sensors SPo2

双台子河口国家自然保护区红海滩景观退化机制研究

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环境污染与防治 2009年第1期31卷 17-20页

作者：台培东苏丹刘延斌李培军白国华刘子昌 verkhozina v A 中国科学院沈阳应用生态研究所辽宁沈阳110016 辽宁省环境科学研究院辽宁沈阳110031 辽宁省流域污染控制重点实验室辽宁沈阳110031 双台子河口国家自然保护区管委会辽宁盘锦124100 俄罗斯科学院西伯利亚分院闵诺格拉多夫地质化学研究所伊尔库茨克市664033

双台子河口国家自然保护区的红海滩景观由生长在潮间带的天然翅碱篷(Suaeda heteroptera)群落形成,是世界上数量最大的黑嘴鸥(Larus saundersi)的觅食和繁殖场所。近年来,由于翅碱篷群落大面积萎缩,黑嘴鸥数量急剧减少。通过现场监测和... 详细信息

双台子河口国家自然保护区的红海滩景观由生长在潮间带的天然翅碱篷(Suaeda heteroptera)群落形成,是世界上数量最大的黑嘴鸥(Larus saundersi)的觅食和繁殖场所。近年来,由于翅碱篷群落大面积萎缩,黑嘴鸥数量急剧减少。通过现场监测和实验模拟,对潮间带翅碱蓬群落的生态学特性和红海滩景观退化机制进行了研究。潮间带翅碱篷是一种非常特殊的植物群落,只生长在特定标高的有周期性潮汐作用的滩涂上,过高或过低均不能生长。潮汐是保证翅碱篷在高盐度潮间带正常生长的重要自然力,可以及时洗脱翅碱篷排出体外的大量盐分,避免盐分结晶形成盐鞘使植物受害死亡。研究发现,潮间带翅碱篷群落退化的原因是由于滩涂因泥沙沉积抬升,潮位降低造成的,而拦海坝的修筑是导致滩涂快速升高的直接原因。采取必要的工程措施,翅碱篷群落是可以人工恢复的。

关键词：翅碱蓬红海滩群落退化机制

Influence of Zr and Mn additions on microstructure and properties of Mg-2.5wt%Cu-Xwt%Zn(X=2.5,5 and 6.5)alloys

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International Journal of Minerals,Metallurgy and Materials 2022年第9期29卷 1733-1745页

作者： A.v.Koltygin v.e.Bazhenov I.v.Plisetskaya v.A.Bautin A.I.Bazlov N.Y.Tabachkova O.O.voropaeva A.A.Komissarov v.D.Belov Foundry Department National University of Science and Technology(MISiS)Moscow 119049Russia Department of Metallurgy Steel New Production Technologies and Protection of MetalsNational University of Science and Technology(MISiS)Moscow 119049Russia Laboratory of Advanced Green Materials National University of Science and Technology(MISiS)Moscow 119049Russia Department of Materials Science of Semiconductors and Dielectrics National University of Science and Technology(MISiS)Moscow 119049Russia Fianit Laboratory(Laser Materials and Technology Research Center at GPI) Prokhorov General Physics Institute RASMoscow 119991Russia Laboratory of Hybrid Nanostructured Materials National University of Science and Technology(MISiS)Moscow 119049Russia Laboratory of Medical Bioresorption and Bioresistance Moscow State University of Medicine and DentistryMoscow 127473Russia

This work studied the effects of adding Zr and Mn in amounts less than 1wt%on the microstructure,mechanical properties,casting properties,and corrosion resistance of Mg-Zn-Cu alloys containing 2.5wt%Cu and 2.5wt%-6.5wt%*** hardness and electrical conductivity measurements were used to find an optimal heat treatment schedule with the best mechanical *** has been established that Zr significantly increases the yield strength of the alloys due to a strong grain refinement ***,the presence of Mn and Zr has a detrimental effect on alloy’s elongation at *** was shown that the precipitation of the Mg_(2)Cu cathodic phase in the alloy structure negatively affects the corrosion ***,the addition of Mn decreases the corrosion rate of the investigated *** best combination of the mechanical,casting,and corrosion properties were achieved in the alloys containing 2.5wt%Cu and 5wt%***,the Mn or Zr addition can improve the properties of the alloys;for example,the addition of Mn or Zr increases the fluidity of the alloys.

关键词： magnesium alloy Mg-Zn-Cu casting alloy Mn addition Zr addition

Accretivity of the General Second Order Linear Differential Operator

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Acta Mathematica Sinica,english Series 2019年第6期35卷 832-852页

作者： v.G.MAZ'YA I.e.veRBITSKY Department of Mathematics Linkoping University SE-581 83 Linkoping Sweden RUDN University 6 Miklukho-Maklay St. Moscow 117198 Russia Department of Mathematics University of Missouri Columbia Missouri 65211 USA

For the general second order linear differential operator ■ with complex-valued distributional coefficients a_(jk), b_j, and c in an open set Ω ? R^n(n ≥ 1), we present conditions which ensure that-L^0 is accretive... 详细信息

关键词： Accretive differential operators complex-valued coefficients Schr?dinger operator form boundedness

LIve IMAGING OF eARLY DeveLOPMeNTAL PROCeSSeS IN MAMMALIAN eMBRYOS WITH OPTICAL COHeReNCe TOMOGRAPHY

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Journal of Innovative Optical Health Sciences 2009年第3期2卷 253-259页

作者： KIRILL v.LARIN IRINA v.LARINA MICHAeL LIeBLING MARY e.DICKINSON Department of Biomedical engineering University of Houston HoustonTXUSA Department of Molecular Physiology and Biophysics Baylor College of Medicine HoustonTXUSA Department of electrical and Computer engineering University of California Santa BarbaraCAUSA

early embryonic imaging of cardiovascular development in mammalian models requires a methodthat can penetrate through and distinguish the many tissue layers with high spatial and temporalresolution. In this paper we evaluate the capability of Optical Coherence Tomography (OCT)technique for structural 3D embryonic imaging in mouse embryos at different stages of thedevelopmental process ranging from 7.5 dpc up to 10.5 dpc. Obtained results suggest that thecollected data is suitable for quantitative and qualitative measurements to assess cardiovascularfunction in mouse models, which is likely to expand our knowledge of the complexity of theembryonic heart, and its development into an adult heart.

关键词： Optical Coherence Tomography non-invasive mouse embryos cardiovascular function.

Arsenic contamination of groundwater:A global synopsis with focus on the Indian Peninsula

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Geoscience Frontiers 2021年第3期12卷 1-18页

作者： e.Shaji M.Santosh K.v.Sarath Pranav Prakash v.Deepchand B.v.Divya Department of Geology University of KeralaKariavattom CampusTrivandrum 695581India School of earth Sciences and Resources China University of Geosciences(Beijing)29 Xueyuan RoadBeijing 100083China Department of earth Science University of AdelaideAdelaideSA 5005Australia

More than 2.5 billion people on the globe rely on groundwater for drinking and providing high-quality drinking water has become one of the major challenges of human *** groundwater is considered as safe,high concentrations of heavy metals like arsenic(As)can pose potential human health concerns and *** this paper,we present an overview of the current scenario of arsenic contamination of groundwater in various countries across the globe with an emphasis on the Indian *** several newly affected regions reported during the last decade,a significant increase has been observed in the global scenario of arsenic *** is estimated that nearly 108 countries are affected by arsenic contamination in groundwater with concentration beyond maximum permissible limit of 10 ppb recommended by the World Health *** highest among these are from Asia(32)and europe(31),followed by regions like Africa(20),North America(11),South America(9)and Australia(4).More than 230 million people worldwide,which include 180 million from Asia,are at risk of arsenic *** Asian countries,Bangladesh,India,Pakistan,China,Nepal,vietnam,Burma,Thailand and Cambodia,are the most *** India,20 states and 4 Union Territories have so far been affected by arsenic contamination in *** attempt to evaluate the correlation between arsenic poisoning and aquifer type shows that the groundwater extracted from unconsolidated sedimentary aquifers,particularly those which are located within the younger orogenic belts of the world,are the worst *** than 90%of arsenic pollution is inferred to be *** infer that alluvial sediments are the major source for arsenic contamination in groundwater and we postulate a strong relation with plate tectonic processes,mountain building,erosion and *** consumption of arsenic-contaminated groundwater results in severe health issues like skin,lung,kidney and bladder ca

关键词： Arsenic contamination Groundwater Indo-Gangetic alluvium Orogenic belts Global tectonics Asia