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Defence Technology（防务技术） 2017年第3期13卷 177-187页

作者： vladimir Cech Jiri Jevicky Department of Weapons and Ammunition University of Defence Oprox Inc. Department of Mathematics and Physics University of Defence

Projectile trajectories calculated under non-standard conditions are considered to be perturbed. The tools utilized for the analysis of perturbed trajectories are weighting factor functions(WFFs) which are a special kind of sensitivity functions. WFFs are used for calculation of meteo ballistic elements mB(ballistic wind wB, virtual temperature tB, pressure pB, density rB, speed of sound a) as well. An effect of weapon system parameters can be incorporated into calculations through the reference height of *** are also calculated from WFFs. Methods based on RHT are far more effective than traditional methods that use weighting factors *** have found that the existing theory of RHT has several shortcomings due to we created an improved theory of generalized RHT which represent a special sensitivity parameters of dynamical systems. Using this theory will improve methods for designing firing tables, fire control systems algorithms, and meteo message generation algorithms.

关键词：灵敏度函数气象要素弹道风特征动力系统理论消防控制系统加权因子生成算法

Rationally connected varieties -On a conjecture of Mumford

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Science China Mathematics 2017年第6期60卷 1019-1028页

作者： LAZIC vladimir PETERNELL Thomas Mathematisches Institut Universitat Bonn Bonn 53115 Germany Mathematisches Institut Universitat Bayreuth Bayreuth 95440 Germany

We establish a conjecture of Mumford characterizing rationally connected complex projective manifolds in several cases.

关键词： rationally connected varieties Mumford conjecture non vanishing conjecture abundance

Store-operated calcium entry in neuroglia

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Neuroscience Bulletin 2014年第1期30卷 125-133页

作者： Alexei Verkhratsky vladimir Parpura Faculty of Life Sciences The University of Manchester Achucarro Center for Neuroscience IKERBASQUE Basque Foundation for Science 48011 Bilbao Spain and Department of Neurosciences University of the Basque Country UPV/EHU Department of Neurobiology Center for Glial Biology in Medicine Atomic Force Microscopy & Nanotechnology aboratories Civitan International Research Center Evelyn F. McKnight Brain Institute University of Alabama Department of Biotechnology University or Rijeka

Neuroglial cells are homeostatic neural cells. Generally, they are electrically non-excitable and their activation is associated with the generation of complex intracellular Ca^2＋ signals that define the ＂Ca^2＋ excitability＂ of glia. In mammalian glial cells the major source of Ca^2＋ for this excitability is the lumen of the endoplasmic reticulum （ER）, which is ultimately （re）filled from the extracellular space. This occurs via store-operated Ca^2＋ entry （SOCE） which is supported by a specific signaling system connecting the ER with plasmalemmal Ca^2＋ entry. Here, emptying of the ER Ca^2＋ store is necessary and sufficient for the activation of SOCE, and without Ca^2＋ influx via SOCE the ER store cannot be refilled. The molecular arrangements underlying SOCE are relatively complex and include plasmalemmal channels, ER Ca^2＋ sensors, such as stromal interaction molecule, and possibly ER Ca^2＋ pumps （of the SERCA type）. There are at least two sets of plasmalemmal channels mediating SOCE, the Ca2＊-release activated channels, Orai, and transient receptor potential （TRP） channels. The molecular identity of neuroglial SOCE has not been yet identified unequivocally. However, it seems that Orai is predominantly expressed in microglia, whereas astrocytes and oligodendrocytes rely more on TRP channels to produce SOCE. In physiological conditions the SOCE pathway is instrumental for the sustained phase of the Ca^2＋ signal observed following stimulation of metabotropic receptors on glial cells.

关键词： calcium signaling astrocyte oligodendrocyte microglia store-operated calcium entry TRP STIM Orai

Ecology and social behavior of the social vole Microtus socialis: A generalized review

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Current Zoology 2023年第6期69卷 775-783页

作者： vladimir S.Gromov A.N.Severtsov Institute of Ecology and Evolution Leninsky prosp.33Moscow 119071Russia

The present review is a compilation of the published data on the ecology and social behavior of the social *** studies provide evidence that these voles live in family groups consisting of 1 adult male,1 or 2 breeding females,and their offspring(1 or 2 litters).The social vole is capable of year-round reproduction,but in arid regions,the voles demonstrate seasonality in *** mating system of this species may be defined as behavioral monogamy.A typical feature of the space use system is territoriality characterized by a locus-dependent dominance in relationships between neighboring breeding pairs as well as family *** family group social organization may be defined as consistent relationships without a dominant *** voles are cooperative in defending their territories,constructing burrows,digging underground tunnels,maintaining nests,and raising *** appears to enhance the survival of family groups of this species under the extreme climaticconditionsof Central Asia.

关键词： ecology family-group lifestyle mating system reproduction social organization social vole

Fragmentation model for large L/D (Length over Diameter) explosive fragmentation warheads

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Defence Technology（防务技术） 2017年第4期13卷 300-309页

作者： vladimir M. Gold US Army RDECOM-ARDEC Attn: RDAR-MEE-F Picatinny Arsenal NJ 07806-5000 USA

New advanced numerical computer model enabling accurate simulation of fragmentation parameters of large Length over Diameter(L/D)explosively driven metal shells has been developed and *** newly developed large L/D multi-region model links three-dimensional axisymmetric high strain high strain-rate hydrocode analyses with the conventional set of Picatinny Arsenal FRAGmentation(PAFRAG)simulation *** standard PAFRAG modeling technique is based on the Mott's theory of break-up of idealized cylindrical"ring-bombs",in which the length of the average fragment is a function of the radius and velocity of the shell at the moment of break-up,and the mechanical properties of the *** the newly developed multi-region model,each of the shell region,the break-up is assumed to occur instantaneously,whereas the entire shell is modeled to fragment at multiple times,according to the number of the regions *** to PAFRAG methodology,the required input for both the natural and the controlled fragmentation models including the geometry and the velocity of the shell at moment of break-up had been provided from the hydrocode analyses and validated with available experimental *** newly developed large L/D multi-region PAFRAG model has been shown to accurately reproduce available experimental fragmentation data.

关键词： Explosive fragmentation modeling Natural fragmentation Mott model PAFRAG Fragmentation warhead lethality performance

The Impact of magnetic water treatment on salt distribution in a large unsaturated soil column

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International Soil and Water Conservation Research 2017年第4期5卷 253-257页

作者： vladimir Zlotopolski United Research Labs San MarcosCAUSA

The use of saline water for crop production leads to soil ***-treated water(MTW)has been used for many years and has shown promise in leaching some ions from *** the same time,results have been inconsistent and somewhat *** this study,we used large unsaturated columns(diameter 15 cm and length 90 cm)to determine:1)salt distributions at depths of up to 90 cm after adding magnetically-treated,saline water to soil;2)whether MTW could reduce the rate of accumulation of salts(measured by EC)in soil,and;3)whether MTW could increase the leaching effect of soluble salts below root zones compared to *** soil tested had a lower salt content compared to the water,a real-world scenario often faced when farmers elect to switch from higher-cost municipal water sources to ground water sources that have a higher saline *** indicated that the rate of salt accumulation was greater in the control group at the 30–60 cm *** the same time,the salt content at the 90 cm depth was greater in the MTW *** results have shown that MTW changes the distribution of salts between soil layers reducing their content in the upper layers which are more important for agriculture.

关键词： Magnetic water treatment Agriculture Soil Irrigation water

Method and portable facility for measurement of trace element concentration in prostate fluid samples using radionuclideinduced energy-dispersive X-ray fluorescent analysis

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Nuclear Science and Techniques 2016年第6期27卷 93-100页

作者： vladimir Zaichick Sofia Zaichick German Davydov Radionuclide Diagnostics Department Medical Radiological Research Centre Department of Medicine College of Medicine at ChicagoUniversity of Illinois

A facility and method for109 Cd radionuclide-induced energy-dispersive X-ray fluorescent(EDXRF) were developed to determine the Fe,Zn,Br,Rb,and Sr concentrations in the specimens of human prostatic *** of expressed prostatic fluid were obtained from 51 men(mean age 51 years,range 18–82 years) with apparently normal prostates using standard rectal massage *** values(M ± SEL) for concentration of trace elements(mg L^(-1)) in human prostate fluid were:Fe 9.04 ±1.21,Zn 573 ± 35,Br 3.58 ± 0.59,Rb 1.10 ± 0.08,and Sr B *** was shown that the results of trace element analysis in the micro-samples(20 l L) are sufficiently representative for assessment of the Fe,Zn,Br,and Rb concentration in the prostate *** facility for109 Cd radionuclide-induced EDXRF is comparatively compact and can be located in close proximity to the site of carrying out the massage *** means of Zn and Rb concentration obtained for prostate fluid agree well with median of reported *** the first time,the Fe and Br concentrations,as well as the upper limit of the Sr concentration,were determined in the human prostate fluid.

关键词：能量色散X射线荧光分析放射性核素元素浓度便携式设备前列腺测定样品诱导

Electron cooling experiments in CSR

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Science China(Physics,Mechanics & Astronomy) 2011年第S2期54卷 274-278页

作者： PARKHOMCHUK Vasily REVA vladimir Budker Institute of Nuclear Physics

The six species heavy ion beam was accumulated with the help of electron cooling in the main ring of Cooler Storage Ring of Heavy Ion Research Facility in Lanzhou (HIRFL-CSR). The ion beam accumulation dependence on the parameters of cooler was investigated experimentally. The 400 MeV/u 12C6+ and 200 MeV/u 129Xe54+ were stored and cooled in the experimental ring CSRe, and the cooling force was measured in different conditions.

关键词： heavy ion beam beam accumulation electron cooling cooling force

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阿兰都城蔑怯思与蒙古征战考

西域研究 2024年第1期 110-126页

作者：弗拉其米尔·费奥多罗维奇·米诺尔斯基芮传明上海社会科学院历史研究所

13世纪,蒙古人对欧亚草原地区和东欧进行了所谓的“西征”。本文周密地考证了被蒙古军摧毁的阿兰人/阿速人(即奥赛梯人)的都城蔑怯思的方位。其主要资料来自志费尼和拉施德丁的相关记载,同时也包括其他中世纪史家的著述。本文不仅得出... 详细信息

13世纪,蒙古人对欧亚草原地区和东欧进行了所谓的“西征”。本文周密地考证了被蒙古军摧毁的阿兰人/阿速人(即奥赛梯人)的都城蔑怯思的方位。其主要资料来自志费尼和拉施德丁的相关记载,同时也包括其他中世纪史家的著述。本文不仅得出了“蔑怯思位于高加索山北麓主水道捷列克河之支流松佳河畔”的推论,而且还对志费尼、拉施德丁有关蒙古西征的史料作了详细考释,从而为“草原丝路”的研究提供了有价值的参考资料。

关键词：志费尼拉施德丁蒙古西征蔑怯思高加索山

Quantifying the actual sediment load flux into Lake Baikal:A case study of the main tributary——The Selenga River(Russia)

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International Journal of Sediment Research 2022年第2期37卷 238-247页

作者： Tatiana Potemkina vladimir Potemkin Limnological Institute of the Siberian Branch of Russian Academy of Sciences

The significant reduction of sediment load flux into Lake Baikal from its main tributary-the Selenga River began in the mid-1970 s,and can be explained by climate change and socio-economic *** analysis was done of changes in hydro-meteorological parameters(water discharge,sediment load,air temperature,and precipitation) and their tendencies over periods of 1946-1975(baseline) and1976-2017(warming).Changes in natural processes and human activity were negligible during the baseline *** the warming period,against the background of an increase in temperature,the water discharge had a slight decreasing trend(-13%) whereas the sediment load has significantly decreased(-53%) these are consist with the precipitation change(-9.4%).Analysis of hydro-climatic data using statistical methods showed that in the warming period the greatest reduction in river sediment runoff occurred in the interval *** this period the sediment load was 768 × 10～3 t/yr,which is less than the average value during the warming period-1048 × 10～3 t/*** sedimentation in the Selenga River delta,the actual sediment load flux from the Selenga River into Lake Baikal amounted to 515 × 10～3 t/yr,which is three times less than the average multiyear value 1535 × 10～3 t/yr for observation period(1946-2017).

关键词： Sediment load Climate change Human activity Selenga River Lake Baikal