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Materials Sciences and Applications 2011年第4期2卷 270-275页

作者： Ivan A. Stadniy Viktoriia V. Konovalova Yuriy M. Samchenko Ganna A. Pobigay anatoliy F. Burban Zoya R. Ulberg 不详

Electrolyte hydrogels are perspective materials for applications in electrochemical devices, which work at ambient temperatures. In this work, hydrogel sulpho-modified membranes were formed by radical co-polymerization of sodium styrensulphonate and potassium sulphopropyl acrylate with acrylamide and acrylonitrile. The hydrogel membranes were obtained in the form of thin films. Properties of the membranes were studied by thermogravimetry, mass-spectrometry and IR-spectrometry. The prepared membranes were thermally stable up to 70°C - 90°C, and showed ion exchange capacity and swelling coefficients sufficient for use as ion-exchange or proton-conducting membranes.

关键词： Copolymer Hydrogels Polyelectrolyte Membranes Acrylamide Swelling Ion Exchange Capacity Thermogravimetry

A scenario for high accuracy τ mass measurement at BEPC-Ⅱ

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Chinese Physics C 2012年第7期36卷 573-577页

作者： M. N. Achasov V. E. Blinov 蔡啸傅成栋 F. A. Harris Q. Liu 莫晓虎 N. Yu. Muchnoi I. B. nikolaev 秦庆 A. G. Shamov K. Yu. Todyshev 王贻芳张建勇 Budker Institute of Nuclear Physics Siberian Branch of the Russian Academy of Sciences11 Lavrentyev Novosibirsk 630090 Russia Institute of High Energy Physics Chinese Academy of Sciences University of Hawaii HonoluluHI 96822 USA

Scenarios for the τ mass measurement at the upgraded Beijing Electron-Positron Collider （BEPC- II ） are studied. A nested minimization procedure is used to optimize the data taking plan. It is found that by using five energy points with the total integrated luminosity of 100 pb-1, the τ mass can be determined with a statistical error of 50 keV.

关键词： τ mass scan optimization uncertainty

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地震预报短期试验场

地震地质译丛

地震地质译丛 1986年第5期 52-54页

作者： A. V. nikolaev 林惠曦

短期试验场,或我们所说的"震中试验场",实际上是设置了各种地下或地面观测点的一个小区域。在这些观测点,配备了各种地球物理观测手段,如拾震器、重力基准点、测量标志塔等等。这种灵活机动的观测工作有如下优点:使用一套仪器即可对几... 详细信息

短期试验场,或我们所说的"震中试验场",实际上是设置了各种地下或地面观测点的一个小区域。在这些观测点,配备了各种地球物理观测手段,如拾震器、重力基准点、测量标志塔等等。这种灵活机动的观测工作有如下优点:使用一套仪器即可对几个场地进行监测;观测场的维持费很低;一旦强震发生,或做出临震预报都可立即投入观测。但也存在资料不连续,需不断地更换观测场地,反复拆装仪器等不足之处。观测数据中断会使资料不全,对于这种不足可通过计算地震发生次数与时间序列的相关系数来估算。通过中亚的一个试验场的调查,得出了约27年之久的时序资料。年发生地震的

关键词：试验场地震预报震中区

Synthesis of ZnO nanorods for piezoelectric resonators and sensors

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Journal of Advanced Dielectrics 2022年第1期12卷 24-30页

作者： A.L.nikolaev M.A.Kazmina N.V.Lyanguzov K.G.Abdulvakhidov E.M.Kaidashev Research and Education Center“Materials”Don State Technical University No.1 Gagarin sq. Rostov-on-Don344000Russia Vorovich Mathematics Mechanics and Computer Sciences Institute Southern Federal University No.200/1 Stachki Str.Rostov-on-Don 344090Russia Southern Research Center RAS No.41 Chehova Str.Rostov-on-Don344006Russia The Smart Materials Research Institute Southern Federal University No.178/24 Sladkova Str.Rostov-on-Don 344090Russia

Efficiency of the piezoelectric chemisensors may be considerably enhanced by use of zinc oxide nanorods as sensing *** nanorod arrays being good piezoelectric materials possess large surface area,which provides extra benefits for chemisorption and *** oriented nanorod arrays are typically prepared onto highly crystalline substrates,whereas the nanorods growth onto metal contacts meets significant technological *** this paper,we report on carbothermal,electrochemical,and hydrothermal techniques of ZnO nanorod arrays synthesis on metal *** optical and structural properties of the obtained nanorods were studied using scanning electron microscopy,X-ray diffraction(XRD),Raman spectroscopy,and lumi-nescence spectroscopy.A reliable technique was developed for obtaining ohmic contact with the grown nanorods.I-U curves of prepared contact were *** synthesis made it possible to obtain the most crystallinely perfect,homogeneous,and dense arrays of nanorods and control the concentration of point defects by changing the synthesis parameters over a wide *** electrochemical synthesis demonstrated excellent results for synthesis of ZnO nanorods on the surface of resonator electrodes.

关键词： Hydrothermal synthesis electrochemical synthesis carbothermal synthesis upper contact ZnO nanorods

Estimation of Mercury Intake from Consumption of Fish and Seafood in Russia

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Food and Nutrition Sciences 2016年第7期7卷 516-523页

作者： anatoliy V. Gorbunov Boris V. Ermolaev Sergey M. Lyapunov Olga I. Okina Sergey S. Pavlov Marina V. Frontasyeva Geological Institute Russian Academy of Sciences Moscow Russia Joint Institute for Nuclear Research Dubna Russia

Data on the mercury concentration in freshwater and marine fish and seafood on the territory of Russia are presented. The level and pattern of the fish and seafood consumption in various regions of Russia are found from the analysis of open statistics. Regions with the maximum and minimum consumption of fish products are established. Mercury intake from these products in a human organism is calculated. It is shown that at the current level and pattern of the diet in Russia fish cannot be a source of high mercury concentrations in a human organism.

关键词： Mercury Marine and Freshwater Fish Seafood Consumption Level Human Organism Intake

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非线性地震学问题

地球物理学进展 1988年第4期 54-58页

作者： Aleksei V.nikolaev 林邦佐

近年来在现场进行的地震激发实验结果揭示出三种不同类型的非线性效应,它们是:应力场时变引起的波速时变;较小形变(ε1×ε2≈10-12)时的地震波干涉;应力场的幔变化对应真实地质介质地震活动的地震振动,即地震发射过程的参数的强烈影响... 详细信息

近年来在现场进行的地震激发实验结果揭示出三种不同类型的非线性效应,它们是:应力场时变引起的波速时变;较小形变(ε1×ε2≈10-12)时的地震波干涉;应力场的幔变化对应真实地质介质地震活动的地震振动,即地震发射过程的参数的强烈影响。产生正弦信号的地震可控震源以及高灵敏度窄频带记录仪器的使用给详细研究非线性效应提供了新机会。这两种工具为在种种地质条件和波传播情况下研究非线性效应开辟了十分广阔的新的可能性。这些结果改变了我们关于非线性效应仅对强震波传播起明显作用的观点,即使很弱的但可检测的非线性效应也能够用于研究介质结构和地球动力学过程,用于地震勘探和油气探测。

关键词：地震地震学地球科学可控震源地震波干涉

Influence of Geological Factor on Indoor Radon Concentrations in Dwelling of Queretaro,Mexico

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Open Journal of Geology 2014年第12期4卷 627-635页

作者： Rocio García Martínez anatoliy Kotsarenko Roman Pérez Enriquez Jose Antonio López Cruz Abeyro Svetlana Koshevaya Jesús Efrén Ospina Norena Centro de Ciencias de la Atmósfera Universidad Nacional Autónoma de MéxicoCiudad UniversitariaMéxico CityMéxico Universidad Autónoma del Carmen(UNACAR) Facultad de IngenieríaCiudad del CarmenMéxico Centro de Geociencias Universidad Nacional Autónoma de MéxicoCampus JuriquillaQuerétaroMéxico CIICAp Autonomous University of State Morelos(UAEM)CuernavacaMéxico Programa de Investigación de Cambio Climático Universidad Nacional Autónoma de MéxicoCiudad UniversitariaMéxico CityMéxico

In this study, radon-222 concentrations were measured within 34 houses distributed in the northern, southern, and central areas of the city of Querétaro in 2007. The objective of this study was to establish the spatial distribution of radon with respect to geological faults and its relation to certain environmental variables. For each sampling site, the radon-222 concentration was analyzed as a function of various climate variables, relative humidity, temperature, and atmospheric pressure, in addition to the ventilation of the house and distance of each site from any geological faults in the area. A multivariate statistical technique was used to analyze these variables based on two components. For component 1, the relative humidity and temperature had the greatest weight, 0.677 and 0.492, respectively, while for component 2, the greatest weights corresponded to radon and the temperature with 0.693 and 0.609, respectively. The average radon concentration across the entire sampling period was 38.92 Bq/m3, the minimum detected value was 6.01 Bq/m3?for site 91GAG0607, and the maximum detected value was 225.95 Bq/m3?for site 91CAM20907. This last value is outside the standards permitted by the Environmental Protection Agency of the United Stated, which is 148 Bq/m3?for indoor environments. With respect to geological faults and their relationship to radon-222, the concentrations for the sampling sites had no relationship to the closeness or distance to these faults.

关键词： Indoor Radon Geology Building Characteristics and Seasonal Variations

俄罗斯萨哈(雅库特)共和国中部热喀斯特湖成因及发育规律

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黑龙江大学工程学报 2021年第2期12卷 1-6页

作者：张晓红 Anatoly N.nikolaev Alexey I.Kolmogorov 戴长雷东北联邦大学自然科学学院俄罗斯雅库茨克677000 黑龙江大学寒区地下水研究所哈尔滨150080 黑龙江大学中俄寒区水文和水利工程联合实验室哈尔滨150080 黑龙江大学水利电力学院哈尔滨150080

在全球不断变暖的大环境下,中国冻土区受气候影响而产生的各类结构性变化已经对人类生活产生相应的负面影响,而位于俄罗斯西伯利亚地区的萨哈(雅库特)共和国面临同样的问题,热喀斯特湖的发育对研究区内的领土开发、农耕地开垦、畜牧业... 详细信息

在全球不断变暖的大环境下,中国冻土区受气候影响而产生的各类结构性变化已经对人类生活产生相应的负面影响,而位于俄罗斯西伯利亚地区的萨哈(雅库特)共和国面临同样的问题,热喀斯特湖的发育对研究区内的领土开发、农耕地开垦、畜牧业等均已产生破坏性影响。借鉴俄罗斯对冻土的丰富研究,为我国相关研究提供思路。通过梳理相关资料,总结出雅库特地区具有强大陆性气候,冬季寒冷漫长,年际温差大等气候特征。该地冻土区主要由于年气温上升,活跃层厚度增加,导致土壤下陷,最终形成热喀斯特湖地貌(又称阿拉斯)。该地区有发育缓慢,无序分布,受地质结构影响较大以及分布地区广等发育特点。

关键词：热喀斯特湖阿拉斯成因发育规律萨哈(雅库特)共和国

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Multiple Ionization of Metal Ions in SMIS 75

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Chinese Physics C 2007年第S1期31卷 159-161页

作者： A.V.Vodopyanov S.V.Golubev V.I.Khizhnyak D.A.Mansfeld A.G.nikolaev E.M.Oks G.Yu.Yushkov Institute of Applied Physics Russian Academy of SciencesNizhny NovgorodRussia High Current Electronics Institute Russian Academy of SciencesTomskRussia

A Simple Mirror Ion Source with 75GHz pumping(SMIS 75)has been *** confinement system is a mirror trap with magnetic field in the plug up to 5T,variable length 15—20cm and mirror ratio 3—*** plasma of metal ions is injected into the trap by a special vacuum arc *** heating is performed by the microwave radiation of a gyrotron(the frequency of 75GHz,power up to 200kW,pulse duration up to 150μs).The results of the experiment have demonstrated substantial multiple ionization of metal *** a metal with high melting temperature(Pt),heating shifts the average ion charge from Pt^(2+) up to Pt^(7+).Maximum stripped observed ion is Pt^(10+).Total current of ion beam is about 300mA.

关键词： EGR discharge plasma multicharge ions refractory metals

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World Class Elite Breaststrokers Downward Kick EMG Muscle Activity of the Gluteus Maximus, Quadriceps Femoris, Hamstring, Gastrocnemius Medialis, Rectus Abdominal, and Erector Spinae

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Psychology Research 2024年第2期14卷 64-69页

作者： Takahisa Ide William F.Johnson Sadafumi Takise Noriko Inada Hiromasa Fujimori Takeharu Fujimori Emi Moronuki Ai Soma Kazuki Watanabe Asahi Nagahata Iryna Glavnyk Mark nikolaev Bogdan Plavin Osaka University of Health and Sport Sciences OsakaJapan Grand Canyon University Phoenix Phoenix Swim Club Paradise ValleyUSA Texas A&M University Corpus Corpus ChristiUSA Miki House TokyoJapan Valparaiso University ValparaisoUSA

This study analyzed the difference between using a downward breaststroke kick and a horizontal breaststroke kick in a sample of world class elite *** compared average muscle activity of the gluteus maximus,quadriceps femoris(vastus medialis and rectus femoris),hamstring/long head of the biceps femoris,gastrocnemius medialis,rectus abdominal,and erector spinae when using the downward breaststroke kick *** find that when this sample of swimmers utilized the downward breaststroke kick,max speed and velocity per stroke increased,measured by 12,788 EMG samples,where the results are highly correlated to duration of the aerodynamic buoyant force in breaststroke kick *** increases in performance observed from measuring the world class elite swimmers is highly correlated to the duration of the kick aerodynamic buoyant *** this sample of elite swimmers,the longer a swimmer demonstrates a buoyant force breaststroke kick,the lower the time in a 100 breaststroke.

关键词： swimming breaststroke downward kick EMG imagination world class elite swimmers