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| 1 | 多尺度空洞卷积的无人机影像目标检测方法显示文摘无人机作为一种新型遥感传感器,越来越多地被应用在医疗、交通、环境监测、灾害预警、动物保护以及军事等领域。由于无人机飞行器飞行高度差异大、采集影像视角可变、飞行速度快,因此无人机影像上的目标具有尺度变化大、分布差异明显、背景复杂、存在大量遮挡等特点,这为无人机影像目标检测带来了一定的困难。针对此,提出一种多尺度空洞卷积的无人机影像目标检测方法,在现有的目标检测算法的基础上,增加多尺度的空洞卷积模块,加大视野感知域,提高网络对无人机影像中的目标分布情况、尺寸差异等特点的学习能力,进一步提升网络对无人机影像中多尺度、复杂背景下的目标的检测精度。实验结果表明,所提出的算法在不增加网络参数的情况下,提升了无人机影像上目标检测的精确度和召回率,具有一定的有效性和鲁棒性。 | 张瑞倩 邵振峰 Aleksei Portnov 汪家明 | 2020 | 武汉大学学报(信息科学版)2020,45,6: | 20 |
| 2 | Icariin prevents bone loss by inhibiting bone resorption and stabilizing bone biological apatite in a hindlimb suspension rodent model显示文摘microgravity 导致的骨头损失是对在长期的 spaceflight 的人的一个实质的障碍。最近的研究表明了 icariin (集成通信适配器) 能在绝经后的女人和 ovariectomized 老鼠稀释骨质疏松症。然而,集成通信适配器是否能免于导致 microgravity 的骨头损失,仍然保持未知。在这研究,一个 hindlimb 暂停啮齿类动物模型上的集成通信适配器的效果被调查。Two-month-old 女 Wistar 老鼠是与集成通信适配器推迟并且对待的 hindlimb (25mg ??? ?? ?? ??? ??????? 牆 ?? 搠 ? 渠癯 ? 氠灩杯湥獥獩吗?? | Jin-peng He Xiu Feng Ju-fang Wang Wen-gui Shi He Li Sergei Danilchenko Aleksei Kalinkevich Mykhailo Zhovner | 2018 | Acta Pharmacologica Sinica2018,39,11: | 11 |
| 3 | Serological Evidence of Bat SARS-Related Coronavirus Infection in Humans,China显示文摘Dear Editor,Severe acute respiratory syndrome coronavirus(SARSCo V)is the causative agent of the 2002–2003 SARS pandemic,which resulted in more than 8000 human infections worldwide and an approximately 10%fatality rate(Ksiazek et al.2003;Peiris et al.2004).The virus infects both upper airway and alveolar epithelial cells,resulting in mild to severe lung injury in | Ning Wang Shi-Yue Li Xing-Lou Yang Hui-Min Huang Yu-Ji Zhang Hua Guo ,Chu-Ming Luo Maureen Miller Guangjian Zhu Aleksei A. Chmura Emily Hagan Ji-Hua Zhou Yun-Zhi Zhang Lin-Fa Wang Peter Daszak Zheng-Li Shi | 2018 | Virologica Sinica2018,33,1: | 8 |
| 4 | 长江口近岸地区抗生素抗性基因与微生物群落分布特征显示文摘由于抗生素的大量使用,环境中微生物对抗生素的抗性不断增加,抗生素抗性基因(ARGs)问题越来越严重,严重威胁生态安全和人类健康.为研究长江口近岸地区水体和底泥沉积物中的ARGs和微生物群落的分布特征,通过野外调查采集了8个站点的水样和沉积物样本,对2种磺胺类抗性基因(sul1、sul2)、6种四环素类抗性基因(tetM、tetC、tetX、tetA、tetO、tetQ)、1种整合子基因intI1、16S rRNA基因和微生物群落进行检测分析.结果表明,长江口近岸地区10种抗性基因的检出率为100%.其中,整合子基因intI1和水样中多种ARGs呈显著正相关关系.变形菌门(Proteobacteria)和拟杆菌门(Bacteroidota)是长江口近岸地区水环境中的优势菌门;Chloroplast为水体中的主要菌属,Chloroplast和Nitrospira为沉积物中的主要菌属.在水体中,硝化螺旋菌门(Nitrospirota)是4种四环素类抗性基因(tetX、tetA、tetO和tetQ)共同的潜在宿主;在沉积物中,Sva0485是sul1和intI1的共同潜在宿主.微生物群落的分布是长江口近岸地区ARGs迁移转化的重要影响因素. | 徐秋鸿 刘曙光 娄厦 Larisa Dorzhievna Radnaeva Elena Nikitina Makhinov Aleksei Nikolavich Araruna José Tavares 金宇辰 李鑫 | 2023 | 环境科学2023,44,1: | 8 |
| 5 | Generalized equation for calculating rock cutting efficiency by pulsed water jets显示文摘One of the promising methods for rock cutting technology is the use of high-speed water jets.In order to improve the cutting capacity of water jets without increasing the hydraulic power of equipment,pulsed water jets are basically used to increase the rock cutting efficiency.However,there are no mature recommendations for selection of rational parameters,and the relationship between indicators of rock cutting efficiency and parameters of pulsed water jet is still not established.In this context,we aimed at developing a generalized equation for calculating rock cutting efficiency,in which all the major parameters in consideration of rock cutting process are included.Then,a calibration of the rational parameters of rock cutting by pulsed water jets was conducted.The results are likely helpful for increasing productivity and reducing energy consumption. | Andrey Polyakov Aleksandr Zhabin Eugene Averin Aleksey Polyakov | 2019 | Journal of Rock Mechanics and Geotechnical Engineering2019,11,4: | 6 |
| 6 | Synergistic effect of combination of surfactant and oxide powder on enhancement of gas hydrates nucleation显示文摘In the present work we studied the induction periods of hydrate formation of natural gas in pure water, aqueous solutions of surfactants, and in the presence of surfactant together with aluminum oxide nanopowder, the activity of which as hydrate formation inducer was studied previously. Sodium dodecyl sulfate(SDS) or neonol AF-9-12 were used as the surfactants. It was demonstrated that the addition of either surfactants or aluminum oxide powder under our experimental conditions causes a decrease in the induction period of hydrate formation from ~105 min for pure water to 30–35 min for water with additives. In the case of the simultaneous presence of surfactants and aluminum oxide powder in the system, induction period decreased to ~20 min. So, the synergistic effect of the combination of surfactant and oxide powder on gas hydrate nucleation was demonstrated. Possible reasons of this effect have been discussed. | Anatoliy N.Nesterov Aleksey M.Reshetnikov Andrey Yu.Manakov Tatyana P.Adamova | 2017 | Journal of Energy Chemistry2017,26,4: | 5 |
| 7 | Transcriptome-wide reprogramming of N^6-methyladenosine modification by the mouse microbiome显示文摘Dear Editor, Microbiome affects many aspects of human health and disease and elicits a wide range of host responses including remarkable epigenetic changes such as DNA methylation,histone modification and non-coding RNA expression.A still poorly explored area of microbiome-host interaction is the response of host RNA modification.N^6-methyladenosine (m^6A)is the most abundant mRNA modification in mammalian cells,occurring at -3 modified adenosine residues per transcript. | Xiaoyun Wang Yan Li Wenjun Chen Hailing Shi A.Murat Eren Aleksey Morozov Chuan He Guan-Zheng Luo Tao Pan | 2019 | Cell Research2019,29,2: | 4 |
| 8 | Rational design and synthesis of noble-metal nanoframes for catalytic and photonic applications显示文摘Nanoframes are unique for their 3D,highly open architecture.When made of noble metals,they are atractive for use as heterogeneous catalysts because of their large speciic surface areas,high densities of catalytically active sites and low vulnerability toward sintering.hey promise to enhance the catalytic activity and durability while reducing the material loading and cost.For nanoframes composed of Au and/or Ag,they also exhibit highly tunable plasmonic properties similar to those of nanorods.his article presents a brief account of recent progress in the design,synthesis and utilization of noble-metal nanoframes.We start with a discussion of the synthetic strategies,including those involving site-selected deposition and etching,as well as dealloying of both hollow and solid nanocrystals.We then highlight some of the applications enabled by noble-metal nanoframes.Finally,we discuss the challenges and trends with regard to future development. | Xue Wang Aleksey Ruditskiy Younan Xia | 2016 | National Science Review2016,3,4: | 4 |
| 9 | Ultrafast Stretched-Pulse Fiber Laser Mode-Locked by Carbon Nanotubes显示文摘Ultrafast fiber sources having short pulses, broad bandwidth, high energy, and low amplitude fluctuations have widespread applications. Stretched-pulse fiber lasers, incorporating segments of normal and anomalous dispersion fibers, are a preferred means to generate such pulses. We realize a stretched-pulse fiber laser based on a nanotube saturable absorber, with 113 fs pulses, 33.5 nm spectral width and ~0.07% amplitude fluctuation, outperforming current nanotube-based designs. | Zhipei Sun Tawfique Hasan Fengqiu Wang Aleksey G.Rozhin Ian H.White Andrea C.Ferrari | 2010 | Nano Research2010,3,6: | 4 |
| 10 | Genes associated with testicular germ cell tumors and testicular dysgenesis in patients with testicular microlithiasis显示文摘阴囊的 microlithiasis (TM ) 是阴囊的 dysgenesis 症候群(TDS ) 的症状之一。TM 作为阴囊的细菌房间肿瘤(TGCT ) 的一个增进知识的标记特别地有趣。工具包 ligand 基因( KITLG ), BCL2 对手/杀手 1 ( BAK1 ),并且表明对手 4 的 sprouty RTK ( SPRY4 ),基因与 TGCT 的高风险被联系骨头形态基因的蛋白质 7 基因( BMP7 ),转变生长因素贝它受体 3 基因( TGFBR3 ),并且 homeobox D 簇基因( HOXD )与 TDS 有关。使用的聚合酶链反应限制碎片长度多型性( PCR-RFLP )分析,我们为 KITLG 调查了等位基因和遗传型频率( rs995030 , rs1508595 ), SPRY4 ( rs4624820 , rs6897876 ), BAK1 ( rs210138 ), BMP7 ( rs388286 ), TGFBR3 ( rs12082710 ),并且在 142 个 TGCT 病人, 137 个 TM 病人,和 153 个肥沃的人(控制组)的 HOXD ( rs17198432 )。我们在 TM 在 KITLG GG_rs995030 遗传型发现了重要差别(P = 0.01 ) 并且 TGCT 病人(P = 0.0005 ) 与控制相比。我们也揭示了在 KITLG_rs1508595 和 TM 之间的强壮的协会(G 等位基因, P = 0.003;GG 遗传型, P = 0.01 ) 并且在 KITLG_rs1508595 和 TGCT 之间(G 等位基因, P = 0.0001;GG 遗传型, P = 0.0007 ) 。而且,在在 TGCT 组和控制之间的 BMP7_rs388286 有重要差别(T 等位基因, P = 0.00004;TT 遗传型, P = 0.00006 ) 并且在 TM 组和控制之间(T 等位基因, P = 0.04 ) 。HOXD 也与 TGCT 表明了一个强壮的协会(rs17198432 A 等位基因, P = 0.0001;AA 遗传型, P = 0.001 ) 。而且,重要差别在 BAK1_rs210138 G 等位基因在 TGCT 组和控制之间被发现(P = 0.03 ) 并且 GG 遗传型(P = 0.01 ) 。KITLG 和 BMP7 基因,与 TGCT 的发展联系了,可能也与 TM 有关。在摘要, KITLG GG_rs995030, GG_rs1508595, BMP7 TT_rs388286, HOXD AA_rs17198432,和 BAK1 GG_rs210138,遗传型与 TGCT 开发的高风险被联系。 | Ilya S Dantsev Evgeniy V Ivkin Aleksey A Tryakin Dmitriy N Godlevski Oleg Yu Latyshev Victoriya V Rudenko Dmitry S Mikhaylenko Vyacheslav B Chernykh Elena A Volodko Aleksey B Okulov Oleg B Loran Marina V Nemtsova | 2018 | Asian Journal of Andrology2018,20,6: | 4 |
| 11 | Pancreatitis, Pancreatic, and Thyroid Cancer With Glucagon-Like Peptide-1–Based Therapies显示文摘 | Michael Elashoff Aleksey V. Matveyenko Belinda Gier Robert Elashoff Peter C. Butler | 2011 | Gastroenterology2011,,1: | 3 |
| 12 | Photonic gas sensors exploiting directly the optical properties of hybrid carbon nanotube localized surface plasmon structures显示文摘Weinvestigate the modification of the optical properties of carbon nanotubes(CNTs)resulting from a chemical reaction triggered by the presence of a specific compound(gaseous carbon dioxide(CO_(2)))and show this mechanism has important consequences for chemical sensing.CNTs have attracted significant research interest because they can be functionalized for a particular chemical,yielding a specific physical response which suggests many potential applications in the fields of nanotechnology and sensing.So far,however,utilizing their optical properties for this purpose has proven to be challenging.We demonstrate the use of localized surface plasmons generated on a nanostructured thin film,resembling a large array of nano-wires,to detect changes in the optical properties of the CNTs.Chemical selectivity is demonstrated using CO_(2) in gaseous form at room temperature.The demonstrated methodology results additionally in a new,electrically passive,optical sensing configuration that opens up the possibilities of using CNTs as sensors in hazardous/explosive environments. | Thomas Allsop Raz Arif Ron Neal Kyriacos Kalli Vojtěch Kundrát Aleksey Rozhin Phil Culverhouse David J Webb | 2016 | Light(Science & Applications)2016,5,1: | 3 |
| 13 | 基于薄片增益介质的皮秒激光再生放大器研究显示文摘近年来,超快激光器已成为激光精密制造的主力光源。为进一步提高激光加工效率和加工能力,需获得更高平均功率、更大单脉冲能量的超短脉冲激光器。本文基于自研的单薄片模块和串接的双薄片模块分别搭建了一套皮秒薄片激光再生放大器,其中基于单薄片模块的再生放大器采用脉宽小于10 ps的种子源,最终获得平均功率44.2 W、脉冲宽度9.3 ps、单脉冲能量220μJ的脉冲激光输出,放大器效率约为13.4%。基于串接的双薄片模块的再生放大器采用脉宽800 ps的种子源,在重复频率200 kHz时获得了126 W的激光输出,在重复频率100 kHz时,实现最大输出单脉冲能量为0.96 mJ。考虑到放大的自发辐射的影响,对单薄片结构再生放大器的动力学过程进行了理论建模,得到和实验相符的结果。更进一步的仿真计算和实验表明较低的单程增益使得薄片再生放大器的光光效率受腔内损耗影响较大,降低腔内损耗是实现高效率薄片再生放大器的关键之一。 | 董静 陈涵天 王海林 贾贤石 朱广志 Aleksei Kozlov 朱晓 | 2021 | 光学学报2021,41,14: | 3 |
| 14 | Maximum likelihood estimation of mixed C-vines with application to exchange rates显示文摘 | Czado Claudia Schepsmeier Ulf Min Aleksey | 2012 | EN2012,,3: | 3 |
| 15 | Fabrication and performance evaluation of novel transparent ceramics RE:Tb_(3)Ga_(5)O_(12)(RE=Pr,Tm,Dy)toward magneto-optical application显示文摘Transparent ceramics are at the heart of modern magneto-optical materials providing promising opportunities for Faraday isolators.1.0 at%RE:Tb3Ga5O12(rare earth(RE)=Pr,Tm,Dy)transparent ceramics were successfully prepared by air sintering and sequential HIP technique using the coprecipitated powders as the raw material.All the powders have shown to be a pure cubic terbium gallium garnet(TGG)phase and exhibit good dispersion.Additionally,a change could not be observed in particle shape with the different doped ions.After the two-step sintering,all the obtained ceramics have good optical quality,and the in-line transmittances at 1070 nm are higher than 80%.Moreover,no secondary phase can be detected from the microstructures.However,the pores which remain entrapped in the ceramics can be noted.The Verdet constant of ceramic samples is optimized by RE doping,and the Verdet constant at 632.8 nm is about−143 rad·T^(−1)·m^(−1),which is about 5%higher than that of TGG ceramics.Finally,the thermo-optical properties of 1.0 at%RE:TGG transparent ceramics are compared.The annealed TGG ceramic showed the best thermo-optical properties,and the thermally induced depolarization of 1.0 at%Ce:TGG and 1.0 at%Tm:TGG was inferior to that of annealed TGG ceramic. | Xiaoying Li Ilya LSnetkov Aleksey Yakovlev Qiang Liu Xin Liu Ziyu Liu Penghui Chen Danyang Zhu Lexiang Wu Zhaoxiang Yang Tengfei Xie Haohong Chen Oleg Palashov Jiang Li | 2021 | Journal of Advanced Ceramics2021,10,2: | 3 |
| 16 | Observation of chaotic polarization attractors from a graphene mode locked soliton fiber laser显示文摘We have demonstrated an all-fiber passively mode locked erbium-doped fiber laser(EDFL) based on graphene–polyvinyl-alcohol film. By watchfully adjusting the polarization controller, two different polarization attractors, including polarization locked vector solitons and a circular attractor, can be observed. This is first time, to the best of our knowledge, to explore the dynamics polarization attractors exhibited by a vector soliton generated from an EDFL based on graphene. | 赵畅 黄千千 Mohammed Al Araimi Aleksey Rozhin Sergey Sergeyev 牟成博 | 2019 | Chinese Optics Letters2019,17,2: | 2 |
| 17 | Dissociation behavior of “dry water” C_3H_8 hydrate below ice point:Effect of phase state of unreacted residual water on a mechanism of gas hydrates dissociation显示文摘The results on a dissociation behavior of propane hydrates prepared from 'dry water' and contained unreacted residual water in the form of ice inclusions or supercooled liquid water(water solution of gas) were presented for temperatures below 273 K.The temperature ramping or pressure release method was used for the dissociation of propane hydrate samples.It was found that the mechanism of gas hydrate dissociation at temperatures below 273 K depended on the phase state of unreacted water in the hydrate sample.Gas hydrates dissociated into ice and gas if the ice inclusions were in the hydrate sample.The samples of propane hydrates with inclusions of unreacted supercooled water only(without ice inclusions) dissociated into supercooled water and gas below the pressure of the supercooled water-hydrate-gas metastable equilibrium. | Andrey O Drachuk Vladimir P Melnikov Nadezhda S Molokitina Anatoliy N Nesterov Lev S Podenko Aleksey M Reshetnikov Andrey Yu Manakov | 2015 | Journal of Energy Chemistry2015,24,3: | 2 |
| 18 | Potential use of magnesium industrial waste for synthesis of Li and Mg co-doped LiMn_(2)O_(4)nanoparticles as cathode material for Li-ion batteries:Effect of sintering temperature显示文摘Potential advantages of active electrode nanomaterials have led to development of high energy and power density lithium-ion(Li-ion)batteries.However,under increasing demand for critical resources such as lithium and cobalt,it is necessary to use abundant raw materials,which can be obtained from industrial waste.In this work,purified Mg(OH)_(2)from waste generated in the production of Li2CO3 with natural brines from the Salar de Atacama(Chile)is used as a doping agent for synthesis of LiMn_(2)O_(4)(LMO)spinel octahedral nanoparticles co-doped with excess Li and Mg.Crystallization of a pure cubic spinel phase(Fd3m)takes place at 500℃and sintering temperature effect at 580 and 750℃,thus the elemental composition and the structural,morphological,and electrochemical properties are studied in detail.Optimum electrochemical performance at room temperature is obtained for Li_(1.03)Mg_(0.05)Mn_(1.92)O_(4)spinel sintered at 750℃with an initial discharge capacity of 121.3 mAh·g^(-1)and capacity retention of 94.0%after 100 cycles at C/3.A locally ordered spinel structure is obtained at 750℃,and doping with Mg^(2+)improves structural rigidity.Synergy between both effects resulted in a high Li^(+)diffusion rate(1.29×10^(-9)cm^(2)·s^(-1))significantly improving cycling performance at elevated C-rates in 50℃. | Aleksei Llusco Luis Rojas Svetlana Ushak Mario Grageda | 2022 | Nano Research2022,15,5: | 2 |
| 19 | 用Morfik Fx编写适合于多种设备平台的应用实例显示文摘目前移动平台应用正当时,最近在处理生态信息和数据时,设想需要在同一IP或者域名资源访问服务器时,系统能够检测到访问的硬件平台,例如判别是电脑访问还是手机访问,然后再根据不同的平台显示适合与该平台相适应的页面内容,如果检测到是电脑平台,则显示较宽而内容丰富的页面,如果是移动(手机)平台则显示适合于手机平台的页面和内容,就这个功能一般编程工具还是有一定难度的。经过一番研究和分析,最终在Morfik编程工具的帮助下得以实现。结合本单位生态学野外实习基地的网络数据服务的实现来介绍该功能的实现过程。 | 闫海忠 Aleksey Babchenko | 2017 | 电脑编程技巧与维护2017,,3: | 2 |
| 20 | Extramedullary Hematopoiesis Generates Ly-6Chigh Monocytes That Infiltrate Atherosclerotic Lesions显示文摘 | Clinton S. Robbins Aleksey Chudnovskiy Philipp J. Rauch Jose-Luiz Figueiredo Yoshiko Iwamoto Rostic Gorbatov Martin Etzrodt Georg F. Weber Takuya Ueno Nico van Rooijen Mary Jo Mulligan-Kehoe Peter Libby Matthias Nahrendorf Mikael J. Pittet Ralph Weisslede | 2012 | Circulation2012,,2: | 2 |