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Expanded Porphyrin Exhibiting Off-Centered Out-of-Plane Coordination to Dysprosium

CCS Chemistry 2024年第7期6卷 1731-1738页

作者： Dmitry I.nazarov Jorge Labella Alexey V.Kuzmin Maxim A.Faraonov Evgenii n.ivanov Salavat S.Khasanov Tomas Torres Mikhail K.Islyaikin Dmitri V.Konarev Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry RAS 142432 Chernogolovka Department of Organic Chemistry Universidad Autonoma de Madrid28049 Madrid Institute of Solid-State Physics RAS 142432 Chernogolovka Research Institute of Macroheterocycles Ivanovo State University of Chemistry and Technology15300 Ivanovo G.A.Krestov Institute of Solution Chemistry of the Russian Academy of Sciences 153045 Ivanovo Institute for Advanced Research in Chemical Sciences Universidad Autonoma de Madrid28049 Madrid IMDEA-nanociencia 28049 Madrid

The complexation of high-spin lanthanides to porphyrinoids is a powerful strategy for the development of advanced molecular *** this context,the use of expanded porphyrinoids remains elusive since their coordination chemistry is challenging to ***,taking inspiration from on-surface chemistry,we explored the coordination of Dy^(3+)to a six-membered porphyrinoid,namely,the hemihexaphyrazine ***,we observed the selective formation of a mono-nuclear off-centered,out-of-plane H_(2)Hhp-Dy^(3+)complex when performing the complexation under reductive *** this reaction,the oxidation state of the macrocycle did not *** X-ray diffraction analysis,we found that the coordination number of Dy in this complex was *** macrocycle cocrystallized with decamethylcobaltocene(Cp_(2)^(*)Co)molecules,giving rise to a wellordered solid-state packing,governed byπ-π*** a result of this organization,a small magnetic coupling between the neighboring molecules was *** in all,this work provides key insights into the coordination of magnetically active metals with expanded porphyrinoids,thus motivating the development of advanced spintronic devices.

关键词： porphyrins dysprosium macrocycle coordination chemistry magnetism

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Liquid Liver Biopsy for Disease Diagnosis and Prognosis

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Journal of Clinical and Translational Hepatology 2023年第7期11卷 1520-1541页

作者： Desislava K.Tsoneva Martin n.ivanov Manlio Vinciguerra Department of Medical Genetics Medical University of VarnaVarnaBulgaria Department of Stem Cell Biology and Transplantology Research InstituteMedical University of VarnaVarnaBulgaria Department of Anatomy and Cell Biology Research InstituteMedical University of VarnaVarnaBulgaria Faculty of Health Liverpool John Moores UniversityLiverpoolUnited Kingdom

Liver diseases are a major burden worldwide,the scope of which is expected to further grow in the upcoming *** relevant liver dysfunction-related blood markers such as alanine aminotransferase and aspartate aminotransferase have limited ***,liver biopsy remains the gold standard for several liver-related pathologies,posing a risk of complication due to its invasive *** biopsy is a minimally invasive approach,which has shown substantial potential in the diagnosis,prognosis,and monitoring of liver diseases by detecting disease-associated particles such as proteins and RnA molecules in biological *** are the core components of the nucleosomes,regulating essential cellular processes,including gene expression and DnA *** cell death or activation of immune cells,histones are released in the extracellular space and can be detected in *** are stable in circulation,have a long half-life,and retain their post-translational ***,we provide an overview of the current research on histone-mediated liquid biopsy methods for liver diseases,with a focus on the most common detection methods.

关键词： Liquid biopsy,Histones nAFLD/MAFLD Chronic liver disease Hepatocellular carcinoma

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基于XeF(C-A)放大器的混合(固态/气态)超高功率飞秒激光系统(英文)

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光学精密工程 2011年第2期19卷 252-259页

作者： LOSEV V ALEKSEEV S ivanov n KOVALCHUK B MIKHEEVL MESYATS G PAnCHEnKO Yu PUCHIKIn A RATAKHIn n YASTREMSKY A Institute of High Current Electronics of Siberian Branch of Russian Academy of Sciences aveAkademichesky 2/3Tomsk 634055Russia Lebedev Physical Institute of Russian Academy of Sciences Leninsky Prospekt53119991 Russia

提出了基于前端发生器和终端放大器,使用光泵浦XeF（C-A）激活介质的太瓦级混合激光器（THL-100）系统。前端发生器由长532 nm的连续激光泵浦的钛宝石飞秒脉冲振荡器,脉冲展宽机构,532 nm的脉冲激光泵浦的再生多通道放大器,衍射光栅压... 详细信息

提出了基于前端发生器和终端放大器,使用光泵浦XeF（C-A）激活介质的太瓦级混合激光器（THL-100）系统。前端发生器由长532 nm的连续激光泵浦的钛宝石飞秒脉冲振荡器,脉冲展宽机构,532 nm的脉冲激光泵浦的再生多通道放大器,衍射光栅压缩器和二次谐波发生器（KDP）组成。其光束输出参数为：脉冲持续时间50 fs,二次谐波（475 nm）辐射能量5 mJ。前端发生器以10 Hz的单脉冲模式工作。XeF（C-A）放大器由双高压脉冲发生器（线性变压器）,爆炸式阴极发射真空二极管,电子束注入系统,充满Xe的气室转换器和激光单元组成。高压发生器包括12个变压器,每个变压器有8个电容（40 nF）和火花隙,电容可以充电至100 kV。真空二极管中的电子束参数为：总电流300 kA,峰值电压550kV,脉冲持续时间约150 ns。穿透金属箔片到达Xe转换器的6个100 cm×12 cm电子束的总能量为67 kJ。激光系统通过泵浦能量的级联处理导致Xe2＊的快速形成,并在（172±5）nm连续辐射。真空紫外辐射通过CaF2窗口辐射到含有XeF2蒸汽和氮气缓冲气体的激光单元中,使XeF2光解,形成XeF＊准分子。由真空紫外辐射泵浦的放大器激活介质长110 cm,直径为24 cm。文中通过数值模拟给出了输出参数和第一实验结果,根据XeF（C-A）放大器参数模型和增益测量结果,得到的输出能量高达23 J,这意味着50 fs脉冲的峰值功率高达4060 TW。

关键词：混合激光器 XeF(C—A)放大器飞秒脉冲宽度电子束紫外转换器

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放电脉冲重频准分子激光器在不同应用领域的发展现状(英文)

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中国光学 2011年第1期4卷 1-8页

作者： LOSEV V F PAnCHEnKO Yu n DUDAREV V V ivanov n G KOnOVALOV I n PAVLInSKY A V PUCHIKIn A V 俄罗斯科学院西伯利亚分院强电流研究所托木斯克634055

研究了脉冲宽度为25～40 ns的放电脉冲XeCl准分子激光器的工作参数。结果显示,激光器产生的脉冲能量为0.2～0.7 J,重复频率为100 Hz,表明在泵浦功率为2.8～3.3 MW/cm3时,激光器实现了2.6%的激光效率和3.8%的本征效率。

关键词：准分子激光器泵浦功率体放电预电离激光效率脉冲持续时间气体混合物

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THE COnTROL OF PARAMETERS OF SELECTIVE FLOTATIOn OF nOn-FERROUS METAL ORES On THE BASIS OF STUDY OF OXIDATIOn MECHAnISM OF SULPHIDE PULP COMPOnEnTS

THE CONTROL OF PARAMETERS OF SELECTIVE FLOTATION OF NON-FERR...

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The Third International Conference on Measurement and Control of Granular Materials

作者： Bocharov V.A. ivanov n.F. Agafonova G.S. Serebryannikov B.L. Gintsvetmet Institute 23Acad.Korolyov Str.129515MoscowRussia

Cyanides are the traditional and most effective supressors of sphalerite and pyrite using for a long time in selective flotation processes in Russia and abroad. in the last decades high toxic flotorea-

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Interaction between acoustic fields of the ambient noise and point surface source

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Chinese Journal of Acoustics 2010年第1期29卷 1-10页

作者： V.A. Shchurov J. R. Wu V. P Kouleshov H. S. Tkachenko n. ivanov V.I. II'ichev Pacific Oceanological Institute Far Eastern Branch Russian Academy of Sciences Russia Key Lab. of Underwater Acoustics Environment Institute of Acoustics Chinese Academy of Sciences Adm. G.I. nevel'skoy Marine State University 690059 50a Verkhneportovaya St. Vladivostok Russia

In measuring acoustic field vector properties either complete or partial cancellation between ambient noise energy flux and the oppositely directed one, radiated, for instance, by tone or noise-shaped point source can be found. In that case there is no matter coherent or incoherent fields interact. The phenomenon of interest is named compensation of opposing energy fluxes. The paper is focused on interaction between vertical component of the surface noise energy flux and that of bottom-reflected noise-shaped interfering signal from on-water source in the deep open ocean. Bottom-reflected weak broadband interfering signal measures the extent of resultant compensation. As the vertical projection of the signal energy flux makes the interference maximum, its power appears to be comparable to that of the surface noise and complete compensation takes place at a given frequency. Once it is the interference minimum, just partial compensation can be found. no compensation was observed for co-directional energy fluxes.

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高效催化剂核化能力的一种解释

高效催化剂核化能力的一种解释

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第28届中国气象学会年会

作者：苏正军 V.n.ivanov 关立友石爱丽中国气象科学研究院中国气象局人影中心

室内试验、数值模拟研究和有设计的外场综合试验是云降水物理和人工影响天气的三个重要支撑,在控制条件下对云雾和对催化剂的科学认识就直接关系到人工影响天气作业和试验的原理、催化方案设计和实施以及催化效果。碘化银焰剂是目前人... 详细信息

室内试验、数值模拟研究和有设计的外场综合试验是云降水物理和人工影响天气的三个重要支撑,在控制条件下对云雾和对催化剂的科学认识就直接关系到人工影响天气作业和试验的原理、催化方案设计和实施以及催化效果。碘化银焰剂是目前人工影响天气最主要的冷云催化剂类型,多年来我国的催化剂得到了长足的发展,成冰效率逐步提高,但是与国际先进水平并未进行过实质性的比较研究。在国家基金委项目支撑下,与世界人影强国俄罗斯开展联合研究,进行相同条件下两国碘化银催化剂的成冰性能对比研究。研究结果表明:我国目前人工影响天气外场实验和作业使用的碘化银焰剂成冰效率已经达到世界先进水平。同时,双方分别利用实验条件对碘化银成冰机理等特性、形态学和化学成分特性分析开展研究,取得一些非常有意义的结果。为认识目前我国冷云催化剂高效成冰性能的原因和进一步改进和优化配方提供有意义的指导方向。

关键词：碘化银核化能力电镜解释

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高效催化剂核化能力的一种解释

高效催化剂核化能力的一种解释

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第26届中国气象学会年会人工影响天气与大气物理学分会场

作者：苏正军 V. n. ivanov 关立友石爱丽中国气象科学研究院中国气象局人影中心

碘化银焰剂是目前人工影响天气最主要的冷云催化剂类型。利用电子显微镜,对焰剂产生颗粒的形态学和化学成分特性分析,进一步解释了目前我国冷云催化剂高效成冰性能的原因。

关键词：碘化银核化能力电镜解释

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Probing the Wave nature of Light-Matter Interaction

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World Journal of Condensed Matter Physics 2018年第2期8卷 62-89页

作者： D.E.Boone C.H.Jackson A.T.Swecker J.S.Hergenrather K.S.Wenger O.Kokhan B.Terzic I.Melnikov I.n.ivanov E.C.Stevens G.Scarel College of Integrated Science and Engineering James Madison UniversityHarrisonburgVirginiaUSA Department of Physics and Astronomy James Madison UniversityHarrisonburgVAUSA Department of Chemistry and Biochemistry James Madison UniversityHarrisonburgVAUSA Department of Physics Old Dominion UniversityNorfolkVAUSA Center for nanophase Materials Sciences Oak Ridge National LaboratoryOak RidgeTNUSA Department of Chemical and Biomolecular Engineering North Carolina State UniversityCentennial CampusRaleighNCUSA

The wave-particle duality of light is a controversial topic in modern physics. In this context, this work highlights the ability of the wave-nature of light on its own to account for the conservation of energy in light-matter interaction. Two simple fundamental properties of light as wave are involved: its period and its power P. The power P depends only on the amplitude of the wave’s electric and magnetic fields (Poynting’s vector), and can easily be measured with a power sensor for visible and infrared lasers. The advantage of such a wave-based approach is that it unveils unexpected effects of light’s power P capable of explaining numerous results published in current scientific literature, of correlating phenomena otherwise considered as disjointed, and of making predictions on ways to employ the electromagnetic (EM) waves which so far are unexplored. In this framework, this work focuses on determining the magnitude of the time interval that, coupled with light’s power P, establishes the energy conserved in the exchange of energy between light and matter. To reach this goal, capacitors were excited with visible and IR lasers at variable average power P. As the result of combining experimental measurements and simulations based on the law of conservation of energy, it was found that the product of the period of the light by its power P fixes the magnitude of the energy conserved in light’s interaction with the capacitors. This finding highlights that the energy exchanged is defined in the time interval equal to the period of the light’s wave. The validity of the finding is shown to hold in light’s interaction with matter in general, e.g. in the photoelectric effect with x-rays, in the transfer of electrons between energy levels in semiconducting interfaces of field effect transistors, in the activation of photosynthetic reactions, and in the generation of action potentials in retinal ganglion cells to enable vision in vertebrates. Finally, the validity of the find

关键词： Infrared Light-Matter Interaction Conservation Of Energy Wave Energy Harvesting

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Dirac operator on the sphere with attached wires

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Chinese Physics B 2016年第4期25卷 335-338页

作者： E n Grishanov D A Eremin D A ivanov I Yu Popov Ogarev Mordovia State University Bolshevistskaya Str. 68 Saransk Russia ITMO University Kroverkskiy pr. 49 St. Petersburg 197101 Russia

An explicitly solvable model for tunnelling of relativistic spinless particles through a sphere is suggested. The model operator is constructed by an operator extensions theory method from the orthogonal sum of the Dirac operators on a semi- axis and on the sphere. The transmission coefficient is obtained. The dependence of the transmission coefficient on the particle energy has a resonant character. One observes pairs of the Breit-Wigner and the Fano resonances. It correlates with the corresponding results for a non-relativistic particle.

关键词： Dirac operator nanostructure tunnelling solvable model

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