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Formation of a Rapidly Rotating Classical Be-star in a Massive Close Binary system

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Research in Astronomy and Astrophysics 2024年第1期24卷 44-50页

作者： evgeny staritsin K.A.Barkhatova Kourovka Astronomical Observatory B.N.Yeltsin Ural Federal Universitypr.Lenina 51Ekaterinburg 620000Russia

This paper investigates the spin-up of a mass-accreting star in a close binary system passing through the first stage of mass exchange in the Hertzsprung gap. Inside an accreting star, angular momentum is carried by meridional circulation and shear turbulence. The circulation carries part of the angular momentum of the accreted layers to the accretor's surface. The greater the rate of arrival of angular momentum in the accretor is, the greater this part. It is assumed that this part of the angular momentum can be removed by the disk further from the accretor. If the angular momentum in the matter entering the accretor is more than half the Keplerian value, then the angular momentum obtained by the accretor during mass exchange stage does not depend on the rate of arrival of angular momentum. The accretor may have the characteristics of a Be-star immediately after the end of mass exchange.

关键词： (stars:)binaries(including multiple):close stars:emission-line Be stars:early-type stars:rotation

Elucidating elusive quaternary selenide EuCeCuse3:synthesis,crystal structure,properties and theoretical studies

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Journal of Rare Earths 2024年第1期42卷 163-171,I0006页

作者： Maxim V.Grigoriev Anna V.Ruseikina Maxim s.Molokeev Vladimir A.Chernyshev Aleksandr s.Aleksandrovsky Alexander s.Krylov svetlana N.Krylova Nikolai P.shestakov Dmitriy A.Velikanov Alexander A.Garmonov Alexey V.Matigorov evgeny A.Ostapchuk Thomas schleid Damir A.safin Laboratory of Theory and Optimization of Chemical and Technological Processes University of TyumenVolodarskogo Str.6625003TyumenRussian Federation Kirensky Institute of Physics Federal Research Center KSC SB RASAkademgorodok 50 Bld.38660036KrasnoyarskRussian Federation Department of Physics Far Eastern State Transport UniversitySerysheva Str.47680021KrasnoyarskRussian Federation Institute of Natural sciences and Mathematics Ural Federal University Named After the First President of Russia B.N.YeltsinMira Str.19620002EkaterinburgRussian Federation Department of Photonics and Laser Technology Siberian Federal UniversitySvobodnii Ave.79660079KrasnoyarskRussian Federation Institute of Physics and Technology University of TyumenVolodarskogo Str.6625003 TyumenRussian Federation Institute for Inorganic Chemistry University of StuttgartPfaffenwaldring 55D-70569StuttgartGermany scientific and Educational and Innovation Center for Chemical and Pharmaceutical Technologies Ural Federal University named after the First President of Russia B.N.YeltsinMira Str.19620002 EkaterinburgRussian Federation University of Tyumen Volodarskogo Str.6625003TyumenRussian Federation

We report on the novel heterometallic quaternary selenide EuCeCuse3,the fabrication of which has been a challenge until this *** structure of the reported selenide was elucidated from the powder X-ray diffraction data,which revealed the formation of EuCeCuse3with excellent yield(96.7%)accompanied with a minor fraction of Cese2(3.3%),and was best solved in orthorhombic space group Pnma with the BaLaCus3structural ***,the crystal structure of the title compound completes the row of the heterometallic quaternary selenides EuRECuse3(RE=La,Pr,Nd,sm,Eu,Gd,Tb,Dy,Ho,Er,Tm,Yb,Lu,Y),of which the cerium-based derivative exclusively belongs to the BaLaCus3structural *** distortion of the Cuse4polyhedron was compared for the whole series of EuRECuse3compounds using theτ4-descriptor for four coordinated ions,which revealed the highest degree of distortion for the Ce3+-containing selenide,followed by the La3+-based ***,the crystallographic and geometrical parameters of the reported selenide were discussed in comparison to the Ce3+-based sulfides srCeCus3and *** initio calculations of the crystal structure,a phonon spectrum and elastic constants for the crystal of EuCeCuse3were also *** types and wavenumbers of fundame ntal modes were determined and the involvement of ions participating in the phonon modes was *** experimental IR spectrum of the reported selenide was interpreted and found to be in agreement with the calculated *** experimental direct band gap of EuCeCuse3was measured to be 1.36 eV that is consistent with the concept of its origin due to interband transitions between orbitals emerging mainly from 4f(valence band)and 5d(conduction band)levels of the Eu2+*** dependence of the Young’s modulus on the direction demonstrates the anisotropy of the elastic properties,while the Vickers hardness for EuCeCuse3was calculated to be 5.2 ***,the title compound is paramagnetic above 4 K.

关键词： Quaternary selenide synthesis Crystal structure Ab initio calculations Magnetic measurements spectroscopy

GOx@Fe_(3)O_(4)-HNTs微囊反应器的构筑及多酶级联催化性能

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高等学校化学学报 2024年第1期45卷 72-83页

作者：黄雨晴刘妍张宏丽林森孙仕勇 GOLUBEV evgeny 吕瑞 KOTOVA Olga KOTOVA Elena 西南科技大学环境与资源学院固体废物处理与资源化教育部重点实验室绵阳621010 西南科技大学非金属矿产地质及其开发利用四川省高等学校重点实验室绵阳621010 俄罗斯科学院乌拉尔分院科米科学中心地质研究所瑟克特夫卡尔167982俄罗斯圣彼得堡国立矿业大学圣彼得堡199106俄罗斯

细胞内或细胞间的微空间使得生物体内的各种酶促反应能够高效有序地进行.基于此,本文结合天然酶-纳米酶二者的优势,构筑了一种模拟体内酶促级联反应的微囊反应器.首先,以天然硅铝酸盐矿物埃洛石纳米管(HNTs)为载体,在其表面原位生成具... 详细信息

细胞内或细胞间的微空间使得生物体内的各种酶促反应能够高效有序地进行.基于此,本文结合天然酶-纳米酶二者的优势,构筑了一种模拟体内酶促级联反应的微囊反应器.首先,以天然硅铝酸盐矿物埃洛石纳米管(HNTs)为载体,在其表面原位生成具有类辣根过氧化物酶活性的四氧化三铁(Fe3O4);随后,将其作为囊壁材料封装天然葡萄糖氧化酶(GOx),构筑GOx@Fe3O4-HNTs微囊反应器.当向体系中加入葡萄糖时,微囊反应器内的GOx先将葡萄糖转化为葡萄糖酸和过氧化氢(H_(2)O_(2)),之后H_(2)O_(2)继续被囊壁中的Fe_(3)O_(4)催化转化为羟基自由基,触发底物3,3',5,5'-四甲基联苯胺(TMB)显色.其中,Fe_(3)O_(4)-HNTs作为囊壁材料不仅使囊内GOx免受外界环境干扰,还可与GOx构建级联催化反应体系,这种酶-纳米酶微囊化级联体系具有比天然酶系统更优异的催化性能和反应稳定性.此外,因磁性Fe_(3)O_(4)的参与,材料还具有可回收性和重复使用性.这种酶-纳米酶复合微囊反应器为模拟生物体内限域环境下的多酶反应体系提供了新方法,同时为后续生物分析与仿生催化领域的进一步研究奠定了基础.

关键词：纳米酶微囊反应器埃洛石纳米管葡萄糖氧化酶级联反应

Evaluation of embankment foundation creep in conditions of deep bedding of roof in permafrost soils

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Research in Cold and Arid Regions 2013年第5期5卷 534-539页

作者： evgeny ashpiz Lev Khrustalev Department of Track and Track Facilities Moscow State University of Railway Department of Geology Lenynskie goryLomonosow Moscow State University

Railroad operating experience in permafrost conditions has shown that deformations of embankments on thawing foun- dations last for a long time. After an initial period of heat settlement due to permafrost degradation, the determining factor is the plastic flow of seasonal thawed soils of the foundation upper layer under the embankment. This paper provides a method to evaluate these deformations, and calculation examples using data from line sections of the Chum-Labytnangi Railway in northwestern Russia. It also discusses several methods of embankment stabilization, including the use of ver- tical thermosiphons.

关键词： permafrost railway plastic flow embankment stabilization methods thermosiphons

白海附近解除火车限速的铁路路基振动诊断和物理建模（英文）

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长安大学学报（自然科学版） 2017年第4期37卷 34-40页

作者： evgeny s.ashpiz ANDREY A ZAYTsEV 沙皇尼古拉斯二世莫斯科国立铁路工程大学莫斯科州莫斯科127994

在俄罗斯北方铁路货运线路沿线路堤上开展了一系列针对软弱地基(泥炭土和黏土)的研究,包括原型振动诊断、物理建模以及计算路堤变形和加固类型变化等。利用离心模型试验对木桩加固泥炭土地基的性能进行了评价,并将其结果与未进行加固处... 详细信息

在俄罗斯北方铁路货运线路沿线路堤上开展了一系列针对软弱地基(泥炭土和黏土)的研究,包括原型振动诊断、物理建模以及计算路堤变形和加固类型变化等。利用离心模型试验对木桩加固泥炭土地基的性能进行了评价,并将其结果与未进行加固处理的路堤模型进行了对比。以Obozerskaya-Malenga线(俄罗斯北部阿尔汉格尔斯克和摩尔曼斯克地区)上的路堤作为路堤原型开展研究;在MIIT中,采用数值计算方法开展地基稳定性、弹性沉降、最终沉降分析,并采用专用软件确定路基稳定性的影响因素和系数。研究结果表明:未进行加固处理的路基建模失效是由路堤顶部承载能力的减小和固定在模型右侧超载的位移所导致的。根据泥炭土地基基础的隆起(路堤模型的每一侧),其变形有接近路堤模型坡脚的变化趋势,在此情况下最大沉降量超过15mm。原型振动监测的结果决定了对路堤采取的进一步措施为:根据主要标准,对于其中被记录的非稳定状态路堤,建议进行详细的调查和路基加固工程。

关键词：路基工程软弱地基泥炭土物理模型振动诊断稳定性

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对技术封建主义理性的批判

外国语文 2024年第2期40卷 98-120页

作者：叶夫根尼·莫罗佐夫蒋林(译) 《新共和》杂志社美国华盛顿特区四川外国语大学外国语文研究中心重庆400031

随着硅谷和华尔街的食利者大亨从用户和债务人那里榨取非生产性财富,人们认为数字资本主义正在催生一个“新封建主义”时代的到来。本文反驳了这种观点,通过分析具有里程碑意义的布伦纳论战,从封建主义逻辑和哈贝马斯的“再封建化”概... 详细信息

随着硅谷和华尔街的食利者大亨从用户和债务人那里榨取非生产性财富,人们认为数字资本主义正在催生一个“新封建主义”时代的到来。本文反驳了这种观点,通过分析具有里程碑意义的布伦纳论战,从封建主义逻辑和哈贝马斯的“再封建化”概念入手,剖析了原始积累中剥削、征用、掠夺的资本主义本质,指出与施加在资本家身上的系统性压力所导致的“创新式积累”不同,哈维的“剥夺式积累”已成为新时代积累的主导形式;文章认为现代金融被剥夺逻辑和寄生逻辑所取代,资本家通过对知识产权和无形资产——包括数据持有的控制,成为完全寄生于大众创造力而无需直接参与生产过程的食利者;数据的兴起催生了庞大的数字经济,谷歌、脸书等数字巨头通过用户、数据和广告之间的关联掠夺了全球大量的剩余价值。文章对祖博夫的“监视资本主义”提出了质疑,认为它缺乏激进的政治议程,无法把握非资本主义数字经济在未来的运作方式;文章同时批判了技术封建主义的分析框架将国家排除在外的做法,指出其忽略了美国在硅谷崛起为全球技术经济霸主的过程中所扮演的重要角色。

关键词：数字资本主义新封建主义数字经济科技公司

Percutaneous interventions in elderly patients with atrial fibrillation： leftatrial ablation and left atrial appendage occlusion

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Journal of Geriatric Cardiology 2017年第9期14卷 541-546页

作者： evgeny N Mikhaylov Tamas szili-Torok Dmitry s Lebedev Arrhythmia Department Almazov National Medical Research Centre Saint-Petersburg Russia Neuromodulation Laboratory Almazov National Medical Research Centre Saint-Petersburg Russia Electrophysiology Unit Cardiology Department Erasmus Medical Center Rotterdam the Netherlands

Heart rhythm disturbances become of special importancewhen patients reach a senior age. Atrial fibrillation （AF） isthe most prevalent arrhythmia among the old age groups,and its impact on morbidity and mortality becomes of para-mount significance. In this population, AF is responsible forsignificant amount of thromboembolic cerebrovascularevents, especially for disabling and fatal strokes, Follow-ing announcement of the special issue of the Journal of Geri-atric Cardiology devoted to heart rhythm disorders in theelderly, a number of submissions have been received withAF as the major topic of authors＇ researches.

关键词： Atrial fibrillation Ablation Efficacy Left atrial appendage Occlusion safety The elderly

Cardiac resynchronization in the elderly is beneficial, but could we implant our devices in old patients safer？

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Journal of Geriatric Cardiology 2016年第3期13卷 277-278页

作者： evgeny N Mikhaylov Dmitry s Lebedev Arrhythmia Department Almazov Federal North-West Medical Research Centre Saint-Petersburg Russia Neuromodulation Unit Almazov Federal North-West Medical Research Centre Saint-Petersburg Russia

We read with interest the article by Olechowski, et aL recently published in the Journal of Geriatric Cardiology. The results of this retrospective analysis of patients under- going cardiac resynchronization therapy （CRT） device implantation are in line with previous reports, suggesting that resynchronization therapy in the elderly is feasible and may lead to significant improvement of cardiac function and clinical status.

关键词： Cardiac resynchronization therapy Implantable cardioverter-defibrillator Pneumothorax

Discrimination of ventricular tachycardia and localization of its exit site using surface electrocardiography

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Journal of Geriatric Cardiology 2019年第4期16卷 362-377页

作者： Heber Ivan Condori Leandro Dmitry s Lebedev evgeny N Mikhaylov Lang G.F. department of Internal Medicine Pavlov First Saint Petersburg State Medical UniversitySaint-PetersburgRussia Almazov National Medical Research Centre Saint-PetersburgRussia Department of Medical and Biotechnology systems First Electrotechnical UniversitySaint-PetersburgRussia

Differential diagnosis of supraventricular tachycardia (sVT) and ventricular tachycardia (VT) is of paramount importance for appropriate patient management. several diagnostic algorithms for discrimination of VT and sVT based on surface electrocardiogram (ECG) analysis have been proposed. Following established diagnosis of VT,a specific origination tachycardia site can be supposed according to QRs complex characteristics. This review aims to cover comprehensive and comparative description of the main VT diagnostic algorithms and to present ECG characteristics which permit to suggest the most common VT origination sites.

关键词： Arrhythmias Electrocardiogram supraventricular Tachycardia Ventricular