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Lunar project ILOM:application of the analytical theory of Lunar physical libration for the simulation of star observations

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Science China(Physics,Mechanics & Astronomy) 2012年第5期55卷 888-891页

作者： PETROVA Nataliya gusev alexander PING JinSong IVANOVA Tamara HANADA Hideo KAWANO Nobuyuki SU XiaoLi Department of Astronomy Kazan State UniversityKazan 420008Russia Department of Computer Sciences Kazan State Power Engineering UniversityKazan 420008Russia National Astronomical Observatory Chinese Academy of SciencesBeijing 100020China Institute of Applied Astronomy Sankt-Petersburg 195251Russia National Astronomical Observatory of Japan NICTMizusawa 023-0861Japan Shanghai Astronomical Observatory Chinese Academy of SciencesShanghai 200030China

This study briefly describes the targets and problems of the future Japanese project In situ Lunar Orientation Measurement(ILOM),which is planned for the year *** of the important parts of the project is to place a small optical telescope on the Lunar surface with the purpose to detect the Lunar physical libration with unprecedented accuracy 0.001 *** the present stage of research the computer simulation of future observations is going on,aiming to determine the moments of transition of a star through the first meridian and the polar distance of the *** of the Moon is being calculated under the analytical theory developed in the frame of a theme of the grant.A list of stars brighter than 12 m,whose coordinates are close to the Lunar precession pole motion,was constructed on the basis of several star *** average,for each moment of observation in the field of view of the telescope(1°) there are approximately 20-25 *** of simulated stellar tracks observable from the Lunar surface(in a polar zone) reveal the significant difference from daily parallels of stars in comparison with the *** one Lunar "day" equal 237 terrestrial days,a star moves on a ***,depending on a longitude of a star,these spirals can be untwisted or *** the latter case a star can describe a loop in the sky of the Moon during the period of *** an unusual astrometric phenomenon combined with the slow rotation of the Moon is compared with the Earth and the fast precession motion of the Lunar pole(in comparison with the precession motion of a terrestrial pole).

关键词： ILOM Lunar physical libration telescope

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Influence of(FeO+Ti O_2) abundance on the microwave thermal emissions of lunar regolith

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Science China Earth Sciences 2016年第7期59卷 1498-1507页

作者： MENG Zhi Guo YANG Guo Dong PING Jin Song CAI Zhan Chuan alexander gusev Edward M.OSEI College of Geoexploration Science and Technology Jilin University Key Laboratory of Planetary Sciences Chinese Academy of Sciences Key Laboratory of Lunar and Planetary Exploration Chinese Academy of Sciences Faculty of Information Technology Macao University of Science and Technology Institute of Geology Kazan Federal University Department of Geomatic Engineering Kwame Nkrumah University of Science and Technology

One of the essential controls on the microwave thermal emissions(MTE) of the lunar regolith is the abundance of Fe O and TiO_2, known as the(Fe O+Ti O_2) abundance(FTA). In this paper, a radiative transfer simulation is employed first to study the change in the brightness temperature(T_B) with FTA under a range of frequencies and surface temperatures. Then, we analyze the influence of FTA on the MTE of the lunar regolith using microwave sounder(CELMS) data from the Chang'E-2 lunar orbiter, Clementine UV-VIS data, and lunar samples recovered from the Apollo and Surveyor projects. We conclude that:(1) FTA strongly influences the MTE of the lunar regolith, but it is not the decisive control, and(2) FTA decreases slightly with depth. This research plays an essential role in appropriately inverting CELMS data to obtain lunar regolith parameters.

关键词： Lunar regolith Microwave thermal emission Radiative transfer simulation (FeO+TiO2) abundance CELMS data

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Multiscale wood micromechanics and size effects study via nanoindentation

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生物质资源与工程(英文) 2023年第3期8卷 246-264页

作者： Yuri I.Golovin alexander A.gusev Dmitry Yu.Golovin Sergey M.Matveev alexander I.Tyrin alexander A.Samodurov Viktor V.Korenkov Inna A.Vasyukova Maria A.Yunack Institute“Nanotechnology and Nanomaterials” G.R.Derzhavin Tambov State University392000 TambovRussia Department of Chemical Enzymology School of ChemistryLomonosov Moscow State University119991 MoscowRussia Research and Educational Center«Sustainable Development of the Forest Complex» Voronezh State Forestry University Named after G.F.Morozov394087 VoronezhRussia Department of Functional Nanosystems and High-Temperature Materials National University of Science and Technology“MISIS”119991 MoscowRussia

Wood as a material is a natural composite with a complex hierarchically arranged *** scale levels of wood structure contribute to its macroscopic mechanical *** nature of such characteristics and deformation modes differs radically at different scale *** macroscopic properties are well studied,and the relevant information can be easily found in the ***,the knowledge of the deformation mechanisms at the mesoscopic level corresponding to the cellular structure of early and late wood layers of annual growth rings is *** hinders building the comprehensive multiscale model of how wood mechanical properties are *** paper described the results of scanning of mechanical properties of softwood and hardwood samples,such as common pine,small-leaf lime,and pedunculate oak,by means of nanoindentation(NI).The NI technique allows varying the size of deformed region within a wide range by altering maximal load(P max)applied to the indenter so that one can re-peatedly and non-destructively test wood structural components at different scale levels on the same sample without changing the technique or *** was discovered that the effective microhardness(H eff)and Young’s modulus(E eff)decreased manifold with P max growing from 0.2 to 2000 *** drop in H effwas observed when the locally deformed region grew,and re-sulting from P max increase generally follows the rule similar to the Hall-Petch relation for yield stress,strength,and hardness initially established for metals and alloys,though obviously in those cases the underlying internal mechanisms are quite *** nature and micromechanisms of such size effect(SE)in wood revealed using NI were discussed in this *** P max<0.2 mN,the deformed area under the pyramidal Berckovich indenter was much smaller than the cell wall ***,in this case,NI measured the internal mechanical properties of the cell wall material as long as free boundaries impact

关键词： Nano/microhardness Scanning nanoindentation Annual growth ring Early and late wood Dendrochronology

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Retrieving volume FeO and TiO_2 abundances of lunar regolith with CE-2 CELMS data using BPNN method

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Research in Astronomy and Astrophysics 2019年第5期19卷 31-42页

作者： Cai Liu Hong-Yan Sun Zhi-Guo Meng Yong-Chun Zheng Yu Lu Zhan-Chuan Cai Jin-Song Ping alexander gusev Shuo Hu College of Geoexploration Science and Technology Jilin University State Key Laboratory of Lunar and Planetary Sciences Macao University of Science and Technology Key Laboratory of Lunar and Deep Space Exploration National Astronomical Observatories Chinese Academy of Sciences School of Geography and Ocean Science Nanjing University Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application Institute of Geology Kazan Federal University

The volume FeO and TiO_2 abundances(FTAs) of lunar regolith can be more important for understanding the geological evolution of the Moon compared to the optical and gamma-ray results. In this paper, the volume FTAs are retrieved with microwave sounder(CELMS) data from the Chang'E-2 satellite using the back propagation neural network(BPNN) method. Firstly, a three-layered BPNN network with five-dimensional input is constructed by taking nonlinearity into account. Then, the brightness temperature(TB) and surface slope are set as the inputs and the volume FTAs are set as the outputs of the BPNN ***, the BPNN network is trained with the corresponding parameters collected from Apollo, Luna,and Surveyor missions. Finally, the volume FTAs are retrieved with the trained BPNN network using the four-channel TBderived from the CELMS data and the surface slope estimated from Lunar Orbiter Laser Altimeter(LOLA) data. The rationality of the retrieved FTAs is verified by comparing with the Clementine UV-VIS results and Lunar Prospector(LP) GRS results. The retrieved volume FTAs enable us to re-evaluate the geological features of the lunar surface. Several important results are as follows. Firstly, very-low-Ti( 5 wt.% constitute less than 10% of the maria. Also, two linear relationships occur between the FeO abundance(FA) and the TiO_2 abundance before and after the threshold, 16 wt.% for FA. Secondly, a new perspective on mare volcanism is derived with the volume FTAs in several important mare basins, although this conclusion should be verified with more sources of data. Thirdly, FTAs in the lunar regolith change with depth to the uppermost surface,and the change is complex over the lunar surface. Finally, the distribution of volume FTAs hints that the highlands crust is probably homogeneous, at least in terms of the microwave thermophysical parameters.

关键词： planetary systems Moon evolution imaging spectroscopy data analysis

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Uptake and accumulation of multiwalled carbon nanotubes change the morphometric and biochemical characteristics of Onobrychis arenaria seedlings

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Frontiers of Chemical Science and Engineering 2012年第2期6卷 132-138页

作者： Elena SMIRNOVA alexander gusev Olga ZAYTSEVA Olga SHEINA Alexey TKACHEV Elena KUZNETSOVA Elena LAZAREVA Galina ONISHCHENKO Alexey FEOFANOV Mikhail KIRPICHNIKOV Biology Faculty Lomonosov Moscow State University Moscow 119991 Russia Derzhavin Tambov State University Tambov 392000 Russia Siberian Institute of Plants Physiology and Biochemistry Siberian Branch Russian Academy of Sciences Irkutsk 664033 Russia NanoTechCenter Ltd. Tambov 392000 Russia Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry Russian Academy of Sciences Moscow 117997 Russia

We have studied the effect of the engineered nanomaterial Taunit, containing multiwalled carbon nano- tubes （MWCNTs）, on the growth of Onobrychis arenaria seedlings and investigated whether affected plants uptake and accumulate MWCNTs. We found that 100 gg/mL and 1000 lag/mL of Taunit stimulated the growth of roots and stems, and enhanced the peroxidase activity in these parts of plants. Microscopy studies showed the presence of MWCNTs in the root and leaf tissues of seedlings exposed to Taunit, suggesting that MWCNTs have a capacity to penetrate the cell walls, accumulate in roots and translocate to the leaves. Thus the stimulating effect of MWCNTs on seedlings of O. arenaria may be associated with the primary uptake and accumulation of MWCNTs by plant roots followed by translocation to the other plant tissues.

关键词： multiwalled carbon nanotubes plants electron microscopy

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Some Mass Migration Underground Found in Beijing Area

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Journal of Geoscience and Environment Protection 2014年第3期2卷 99-107页

作者： Zheng Xin Li Jin Song Ping Yong Zhang Yang alexander gusev 1Key Laboratory of Lunar and Deep Space National Astronomical Observatories Chinese Academy of Sciences Beijing China 2Center of Astrodynamic Research Shanghai Astronomical Observatory Chinese Academy of Sciences Shanghai China Key Laboratory of Lunar and Deep Space National Astronomical Observatories Chinese Academy of Sciences Beijing China

The relationship between the change of a local gravity field and the mass migration underground is discussed by means of using a point-source disturbed body as a substitute for the mass migration underground. Some significant local gravity field changes in Beijing area have been found, from which the three parameters of the disturbed bodies, location, depth and mass, have been derived successfully from the observations of a gravimetric network. In order to determine the depth of a body, a new approach is suggested in which the gravity change difference is used instead of the gravity change itself. The mass of a disturbing body has been estimated properly. Astronomical PZT is suggested for this kind of survey. The results provide us a picture of the underground mass migration with which the gravity changes on the ground surface may be interpreted in a better way. This additional information may be useful in seismological studies.

关键词： Component Underground Mass Migration Gravity Field Earthquake PZT

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(FeO+TiO_2)含量对月壤微波热辐射的影响

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中国科学：地球科学 2016年第5期46卷 720-729页

作者：孟治国杨国东平劲松蔡占川 alexander gusev Edward M.OSEI 吉林大学地球探测科学与技术学院长春130026 中国科学院行星科学重点实验室上海200030 中国科学院月球与行星科学重点实验室北京100012 澳门科技大学资讯科技学院澳门999078 Institute of Geology Kazan Federal University Department of Geomatic Engineering Kwame Nkrumah University of Science and Technology

(Fe O+Ti O_2)含量(FTA)是月壤微波热辐射(MTE)的重要影响因素之一.文章首先基于辐射传输方程,数值模拟研究了不同频率、不同月表温度条件下FTA对MTE的影响.然后,结合Clementine卫星UV-VIS数据及Apollo和Surveyor计划样品得到的FTA资料... 详细信息

(Fe O+Ti O_2)含量(FTA)是月壤微波热辐射(MTE)的重要影响因素之一.文章首先基于辐射传输方程,数值模拟研究了不同频率、不同月表温度条件下FTA对MTE的影响.然后,结合Clementine卫星UV-VIS数据及Apollo和Surveyor计划样品得到的FTA资料,基于嫦娥2号卫星微波辐射计(CELMS)数据,系统分析了FTA对月壤MTE的影响.结果表明:(1)FTA是同一纬度方向上MTE的重要影响因素,但不是月壤MTE的决定性因素;(2)FTA随月壤深度的增加而略有下降.研究结果对基于嫦娥系列卫星CELMS数据的月壤参数反演具有重要意义.

关键词：月壤微波热辐射辐射传输模拟 (FeO+TiO2)含量 CELMS数据

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基于CELMS数据的月球东海微波辐射特性研究

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深空探测学报 2014年第3期1卷 214-219页

作者：孟治国平劲松 alexander gusev 蔡占川陈思吉林大学地球探测科学与技术学院长春130026 中国科学院国家天文台月球与深空探测重点实验室北京100012 Geology Institute Kazan Federal University 澳门科技大学资讯科技学院

根据月壤(FeO+TiO2)含量数据和"嫦娥2号"卫星CELMS数据,对月球东海地区微波辐射特性进行了研究。结果表明,在东海内部(FeO+TiO2)含量较高的地区,其正午和午夜时刻的亮温值都比较高,亮温差值也比较大,但亮温及亮温差值的分布随频率变化... 详细信息

根据月壤(FeO+TiO2)含量数据和"嫦娥2号"卫星CELMS数据,对月球东海地区微波辐射特性进行了研究。结果表明,在东海内部(FeO+TiO2)含量较高的地区,其正午和午夜时刻的亮温值都比较高,亮温差值也比较大,但亮温及亮温差值的分布随频率变化呈现不均匀性;Maunder撞击坑的(FeO+TiO2)含量较低,但其低频和高频亮温及亮温差值的表现正好相反;区域F(约10°S/106°W)、G(约5°S/104°W)和以(13°S/103°W)为中心的区域的微波辐射存在明显异常。这些区域的微波辐射特性对研究东海地区的形成演化过程具有重要意义。

关键词：东海微波辐射 CELMS数据

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嫦娥五号等着陆区的月壤微波热辐射特性及地质意义分析

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中国科学：物理学、力学、天文学 2023年第3期53卷 101-117页

作者：孟治国唐天琦董学纲常文清邹猛张洪波王明常蔡占川平劲松郑永春张渊智 gusev alexander 吉林大学地球探测科学与技术学院长春130026 澳门科技大学月球与行星科学国家重点实验室中国澳门999078 吉林大学工程仿生教育部重点实验室长春130022 中国科学院国家天文台北京100101 中国科学院大学天文与空间科学学院北京100049 喀山联邦大学地质学院喀山420008俄罗斯

嫦娥三、四和五号的原位月壤探测为基于嫦娥一、二号卫星微波辐射计数据的月球科学研究提供了重要参考.本文基于嫦娥二号卫星微波辐射计数据,生成了着陆区亮温图;为了消除亮温随纬度变化的影响,突出亮温与月壤成分之间的关系,定义和制... 详细信息

嫦娥三、四和五号的原位月壤探测为基于嫦娥一、二号卫星微波辐射计数据的月球科学研究提供了重要参考.本文基于嫦娥二号卫星微波辐射计数据,生成了着陆区亮温图;为了消除亮温随纬度变化的影响,突出亮温与月壤成分之间的关系,定义和制作了规则亮温图和亮温差图;基于Kaguya MI数据,制作了研究区氧化亚铁、氧化钛、单斜辉石和橄榄石含量图;结合原位月壤探测成果,系统分析了嫦娥三、四和五号着陆区月壤的微波热辐射特性.主要研究发现包括以下三点:(1)嫦娥五号着陆区具有稳定的亮温表现,表明该地区月壤成分随深度的变化不明显,可以作为微波热辐射异常研究的重要参考;(2)嫦娥三号着陆区微波数据探测范围内月壤存在分层结构,以低频数据为代表的深层、以高频数据探测为代表的浅层和以可见光成果为代表的表层,成分变化很大;(3)在嫦娥四号着陆区发现并提出了微波冷异常的存在,并初步分析了微波冷异常的成因机制.研究发现,微波辐射计数据可用于月海玄武岩的识别,可以为深化未来的月海岩浆演化研究提供重要的科学参考.

关键词：嫦娥计划月壤原位探测微波辐射计微波热辐射特性岩浆演化微波冷异常

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双层结构月球的自由天平动与受迫天平动

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深空探测学报 2014年第3期1卷 205-209页

作者：李文潇 alexander gusev 平劲松张同杰北京师范大学天文系北京100875 中国科学院国家天文台月球与深空探测重点实验室北京10001 俄罗斯喀山联邦大学喀山420008

根据JPL/NASA发布的月球行星历表DE430/LE430提供的月球物理参数,计算了月球主转动惯量;使用刚体月球转动微分方程获得的月球物理天平动解析关系式,计算了不同分层模型的月球自由天平动三个模式的频率及周期,比较并讨论了不同的解析结果... 详细信息

根据JPL/NASA发布的月球行星历表DE430/LE430提供的月球物理参数,计算了月球主转动惯量;使用刚体月球转动微分方程获得的月球物理天平动解析关系式,计算了不同分层模型的月球自由天平动三个模式的频率及周期,比较并讨论了不同的解析结果;在此基础上,评估了月球受迫天平动一个模式的幅度。

关键词：月球天平动解析方法频率及周期幅值

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