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| 1 | Chronic hepatitis B in pregnant women: Current trends and approaches显示文摘Chronic hepatitis B(CHB)is a significant public health problem worldwide.The aim of the present review is to summarize the actual trends in the management of CHB in pregnant women.The prevalence of hepatitis B virus(HBV)infection in pregnant women is usually comparable to that in the general population in the corresponding geographic area.All women have to be screened for hepatitis B surface antigen(HBsAg)during pregnancy.Additional examinations of pregnant women with CHB may include maternal hepatitis B e antigen,HBV viral load,alanine aminotransferase level,and HBsAg level.The management of pregnancy depends on the phase of the HBV infection,which has to be determined before pregnancy.In women of childbearing age with CHB,antiviral therapy can pursue two main goals:Treatment of active CHB,and vertical transmission prevention.During pregnancy,tenofovir is the drug of choice in both cases.A combination of hepatitis B immunoglobulin and vaccine against hepatitis B should be administered within the first 12 h to all infants born to mothers with CHB.In such cases,there are no contraindications to breastfeeding. | Maria Belopolskaya Viktor Avrutin Olga Kalinina Alexander Dmitriev Denis Gusev | 2021 | World Journal of Gastroenterology2021，27，23： | 15 |
| 2 | 月面冯·卡门撞击坑的着陆选址和科学探测目标浅析显示文摘冯·卡门(Von Kármán)撞击坑位于月球背面南极-艾肯(South Pole-Aitken,SPA)盆地中部,是中国'嫦娥4号'计划的优先级较高的探测目标。对该撞击坑的着陆和探测,有助于揭示月球形成和演化的一些关键问题,在月球科学研究中具有重大的意义。论文概要总结了冯·卡门撞击坑的研究意义和科学价值:结合LRO卫星LOLA数据、Clementine UV-VIS数据、GRAIL数据、'嫦娥2号'卫星CELMS等数据,简要分析了冯·卡门撞击坑的地形、成分、深部结构和亮温分布等特征及其科学意义:结合这些研究成果和前人对冯·卡门撞击坑的研究期望,提出了3个预选着陆区和可能的科学发现。 | 孟治国 李翠 平劲松 黄倩 蔡占川 Alexander Gusev | 2018 | 深空探测学报2018，5，1： | 6 |
| 3 | Influence of(FeO+Ti O_2) abundance on the microwave thermal emissions of lunar regolith显示文摘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. | MENG Zhi Guo YANG Guo Dong PING Jin Song CAI Zhan Chuan Alexander GUSEV Edward M.OSEI | 2016 | Science China Earth Sciences2016，59，7： | 4 |
| 4 | 基于CELMS数据的月球东海微波辐射特性研究显示文摘根据月壤(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。 | 孟治国 平劲松 Alexander GUSEV 蔡占川 陈思 | 2014 | 深空探测学报2014，1，3： | 3 |
| 5 | 双层结构月球的自由天平动与受迫天平动显示文摘根据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。 | 李文潇 Alexander GUSEV 平劲松 张同杰 | 2014 | 深空探测学报2014，1，3： | 2 |
| 6 | Lunar project ILOM:application of the analytical theory of Lunar physical libration for the simulation of star observations显示文摘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 2017.One 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 arcsec.At 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 star.Rotation 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 catalogues.On average,for each moment of observation in the field of view of the telescope(1°) there are approximately 20-25 stars.Analyses 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 Earth.During one Lunar 'day' equal 237 terrestrial days,a star moves on a spiral.However,depending on a longitude of a star,these spirals can be untwisted or twisted.In the latter case a star can describe a loop in the sky of the Moon during the period of supervision.Such 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). | PETROVA Nataliya GUSEV Alexander PING JinSong IVANOVA Tamara HANADA Hideo KAWANO Nobuyuki SU XiaoLi | 2012 | Science China(Physics,Mechanics & Astronomy)2012，55，5： | 1 |
| 7 | An SVD-based grayscale image quality measure for local and global assessment显示文摘 | Aleksandr Shnayderman Alexander Gusev Ahmet M Es- kicioglu | 2006 | IEEE Transactions on Image Processing2006，15，2： | 1 |
| 8 | Uptake and accumulation of multiwalled carbon nanotubes change the morphometric and biochemical characteristics of Onobrychis arenaria seedlings显示文摘我们学习了设计 nanomaterial Taunit 的效果,包含 multiwalled 碳 nanotubes (MWCNT ) ,在 Onobrychis arenaria 幼苗的生长上并且调查了是否影响了植物举起并且积累 MWCNT。我们发现 100 g/mL 和 Taunit 的 1000 g/mL 刺激了根和茎的生长,并且在植物的这些部分提高了 peroxidase 活动。显微镜学研究在根和暴露于 Taunit 的幼苗的叶纸巾显示出 MWCNT 的存在,建议 MWCNT 有一个能力渗透细胞墙,在根和 translocate 积累到叶子。因此 O 的幼苗上的 MWCNT 的刺激效果。arenaria 可以与主要举起被联系,由植物根的 MWCNT 的累积由 translocation 列在后面到另外的植物纸巾。 | Elena SMIRNOVA Alexander GUSEV Olga ZAYTSEVA Olga SHEINA Alexey TKACHEV Elena KUZNETSOVA Elena LAZAREVA Galina ONISHCHENKO Alexey FEOFANOV Mikhail KIRPICHNIKOV | 2012 | Frontiers of Chemical Science and Engineering2012，6，2： | 1 |
| 9 | An SVD-based grayscale image quality mea sure for local and global assessment显示文摘 | Aleksandr Shnayderman Alexander Gusev Ahmet M Eskicioglu | 2006 | IEEE Transac- tions on Image Processing2006，15，2： | 1 |
| 10 | 基于“嫦娥2号”CELMS数据的冯·卡门撞击坑微波辐射特性显示文摘冯·卡门(Von Kármán)撞击坑位于月球背面的SPA盆地西北部,切穿了浅层月壳,具有异常的矿物成分分布。基于微波辐射计数据的月壤微波辐射特性分析,对月球热演化和岩浆演化研究具有重要的参考价值。本研究基于'嫦娥2号'卫星微波辐射计数据,采用时角分析、双线性插值方法,生成了研究区域的亮温(T_B)图和亮温差(dT_B)图像;结合Arcgis软件,叠加地质图,并结合成分、地形图,研究了Von Kármán撞击坑微波辐射特性。研究结果表明:研究区北部出现高T_B异常,初步判定为下垫面温度较高;研究区南部出现与钛铁矿(FeO+TiO_2)含量分布相对应的亮温表现;结合研究区的微波辐射特性,重新进行了冯·卡门撞击坑地质解译;根据冯·卡门撞击坑的亮温表现,建议北部为着陆区重点选择区,其次为南部和西部。 | 胡硕 孟治国 朱蕴哲 连懿 李翠 GUSEV Alexander | 2018 | 深空探测学报2018，5，1： | 1 |
| 11 | Retrieving volume FeO and TiO_2 abundances of lunar regolith with CE-2 CELMS data using BPNN method显示文摘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 network.Thereafter, 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(<1.5 wt.%) basalts are the most spatially abundant, and the surfaces with TiO_2> 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. | Cai Liu Hong-Yan Sun Zhi-Guo Meng Yong-Chun Zheng Yu Lu Zhan-Chuan Cai Jin-Song Ping Alexander Gusev Shuo Hu | 2019 | Research in Astronomy and Astrophysics2019，19，5： | 1 |
| 12 | (FeO+TiO_2)含量对月壤微波热辐射的影响显示文摘(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. | 孟治国 杨国东 平劲松 蔡占川 Alexander GUSEV Edward M.OSEI | 2016 | 中国科学:地球科学2016，46，5： | 1 |
| 13 | 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显示文摘嫦娥三、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. | 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 | 2023 | 中国科学:物理学、力学、天文学2023，53，3： | 0 |
| 14 | 多层月球模型的自转动力学与着陆探测显示文摘着重于寻找月核证据并将月核模型引入月球天平动理论中,探讨如何将多种空间探测技术应用于毫角秒精度的月球天平动观测,进而测定液态和固态月核参量。通过讨论多层月球的月球物理参数、流体核的几何与动力学椭率、松散黏滞的月幔,可获得月球相关详细信息与参量,这些参量对评估多层结构的月球自由天平动很重要。物理天平动的解析理论还可应用于未来多种月球工作中,期望在近代月球科学研究基础上能有进一步发展。 | Alexander GUSEV 孟治国 平劲松 Natalia PETROVA Hideo HANADA 李文潇 | 2014 | 深空探测学报2014，1，3： | 0 |
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