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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

Hydrocarbon Raw Materials:New Technologies

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地学前缘 2009年第S1期16卷 135-136页

作者： evgeny Tropnikov Olga Kotova Institute of Geology of Komi SC UB of RAS

Recently the increased interest to the researches of natural organic substance is ***,the organic substance is the basic natural generator and source of carbon-containing resources;secondly,it is the defining factor o... 详细信息

关键词： hydrocarbon raw diamond-like carbon laser radiation

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碳相及相关纳米结构的分类(英文)

新型炭材料 2013年第4期28卷 273-283页

作者： evgeny A Belenkov Vladimir A Greshnyakov Chelyabinsk State University Bratiev Kashirinih 129 Chelyabinsk 454001 Russia

介绍了一种基于材料中的化学键和原子的近邻原子数基础上的碳相及其相关纳米结构的分类新方法。该分类方法不仅可以描述已有碳结构,还可用于预测新的碳物相和结构。通过连接、原子叠加、以及已有结构转变可以获得新结构。使用这种方法... 详细信息

介绍了一种基于材料中的化学键和原子的近邻原子数基础上的碳相及其相关纳米结构的分类新方法。该分类方法不仅可以描述已有碳结构,还可用于预测新的碳物相和结构。通过连接、原子叠加、以及已有结构转变可以获得新结构。使用这种方法可以用来预测金刚石晶系,发现了由原子放置在的等同位置处的30种类金刚石结构,其中18种结构为首次预测所得。

关键词：金刚石类金刚石炭富勒烯石墨纳米管

Characterization of the thermal conductivity of La0.95r0.05CoO3 thermoelectric oxide nanofibers

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Nano Research 2014年第8期7卷 1224-1231页

作者： Weihe Xu evgeny Nazaretski Ming Lu Hamid Hadim Yong Shi Brookhaven National Lab Upton NY 11973 USA Department of Mechanical Engineering Stevens Institute of Technology Hoboken N J 07030 USA

Thermoelectric oxide nanofibers prepared by electrospinning are expected to have reduced thermal conductivity when compared to bulk samples. Measurements of nanofibers＇ thermal conductivity is challenging since it involves sophisticated sample preparation methods. In this work, we present a novel method suitable for measurements of thermal conductivity of a single nanofiber. A microelectro- mechanical （MEMS） device has been designed and fabricated to perform thermal conductivity measurements on a single nanofiber. A special Si template was designed to collect and transfer individual nanofibers onto a MEMS device. Pt was deposited by a focused ion beam to reduce the effective length of a prepared nanofiber. La0.95r0.05CoO3 nanofibers with diameters of 140 run and 290 run were studied and characterized using this approach at room temperature. Measured thermal conductivities yielded values of 0.7W-m 1-K-1 and 2.1 W.m-I＇K-1, respectively. Our measurements in La0.95r0.05CoO3 nanofibers confirmed that a decrease of linear dimensions has a profound effect on its thermal conductivity.

关键词： heat transfer thermal conductivity nanoscale MEMS thermoelectric

Analysis and Forecasting of the Life Cycle Labor Cost of Aircraft Development

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Analysis and Forecasting of the Life Cycle Labor Cost of Air...

作者： evgeny Maslennikov 上海交通大学

学位级别：硕士

The thesis aims to develop a model for an integrated calculation of the labor intensity and approbation of the methodology for calculating the labor intensity of *** study's main result was the construction of an algorithm and the development of an experimental model for an enlarged calculation of the labor intensity for the manufacture of an *** algorithm for calculating the labor intensity is a solution for managing the cost of an aircraft product,where there is a need to determine the labor intensity at all stages of design: conceptual,draft design(when choosing the leading structural and technological solutions),and detailed design when there is still no complete set of drawings and a complex technical process,but there are only specific initial data characterizing the ***,start-up aviation companies do not have a model for an integrated calculation of labor intensity at all design ***,this study can form the basis of the company's methodological base.

关键词： life cycle cost research and development labor intensity competitiveness assessment

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

The Effect of Self-nucleation on Isothermal Crystallization Kinetics of Poly(butylene succinate)(PBS) Investigated by Differential Fast Scanning Calorimetry

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Chinese Journal of Polymer Science 2017年第8期35卷 1009-1019页

作者： Jing Jiang evgeny Zhuravlev Wen-bing Hu Christoph Schick 周东山 Department of Polymer Science and Engineering School of Chemistry and Chemical EngineeringState Key Laboratory of Coordination ChemistryNanjing University Nanjing 210023 China University of Rostock Institute of Physics Wismarsche Strasse 43-45 18051 Rostock Germany School of Physical Science and Technology Xinjiang Key Laboratory and Phase Transitions and Microstructures in Condensed MattersYili Normal University Yining 835000 China

Differential fast scanning calorimetry（DFSC） was employed on the study of self-nucleation behavior of poly（butylene succinate）（PBS）.The ultra-fast cooling ability of DFSC allows investigating the effect of self-nucleation on the isothermal crystallization kinetics over a wide temperature *** half-time,instead of crystallization peak temperature,was used to describe the self-nucleation behavior,and the self-nucleation domain for the samples crystallized at different temperatures was *** to the competition between homogenous nucleation and self-nuclei,the effect of self-nucleation was less pronounced at high supercooling than that for the sample isothermally crystallized at higher *** efficiency scale to judge the efficiency of nucleating agents from the crystallization half-time was also introduced in this work.

关键词： nucleation calorimetry crystallized isothermal kinetics homogenous crystalline succinate heating melting

Modeling and Utilization of Biomass-to-syngas for Industrial Multi-energy Systems

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CSEE Journal of Power and Energy Systems 2021年第5期7卷 932-942页

作者： Kuan Zhang Bin Zhou Qiuwei Wu Yijia Cao Nian Liu Nikolai Voropai evgeny Barakhtenko College of Electrical and Information Engineering Hunan UniversityChangsha 410082China Center for Electric Power and Energy.Department of Electrical Engineering.Technical University of Denmark.Kgs.Lynghy 28(M)Denmark. State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources North China Electric Power UniversityBeijing 102206China. Melentiev Energy Systems Institute of Siberian Branch of the Russian Academy of Sciences IrkutskRussia.

Excessive consumption of fossil fuels in the industry sector has caused hij»h operating costs and severe environmental pollution,advocating a cost-effective and sustainable substitute for fossil fuels.I'his paper proposes an enhanced utilization mechanism of biomass-to-syngas(B2S)to provide various types of steam flows in industrial multi-energy systems(MESs).In this mechanism,the available generations from renewable energy sources(RESs)can be harvested to assist in the biomass gasification in a B2S gasifier for enhancing the syngas yield and its calorific value.A thermodynamic interaction model for B2S is formulated to capture gasification temperature dynamics under high-temperature steam injections and optimally control the thermochemical behaviors of biomass drying,pyrolysis,and gasification.A B2S based energy hub framework with its multienergy coupling matrix is formulated for mapping the input hiomass-wind-solar energy into electricity,syngas,and various types of’steam carriers to satisfy industrial energy cieniands.A hierarchical multi-timeframe dispatch scheme is developed for the energy-efficient conversion and utilization of multi-energy carriers to minimize the system operation *** studies are implemented to demonstrate the superior performance of the proposed methodology on system operational economy and sustainability.

关键词： Biomass energy microgrid multi-energy systems renewable energy sources syngas

In-plane ferroelectric tunnel junctions based on 2D α-In_(2)Se_(3)/ semiconductor heterostructures

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npj Computational Materials 2023年第1期9卷 2286-2292页

作者： Zifang Liu Pengfei Hou Lizhong Sun evgeny Y.Tsymbal Jie Jiang Qiong Yang Hunan Provincial Key Laboratory of Thin Film Materials and Devices School of Materials Science and EngineeringXiangtan UniversityXiangtan 411105 HunanChina Department of Physics and Astronomy University of NebraskaLincolnNE 68588USA

Ferroelectric tunnel junctions(FTJs)have great potential for application in high-density non-volatile ***,α-In_(2)Se_(3) was found to exhibit robust in-plane and out-of-plane ferroelectric polarizations at a monolayer thickness,which is ideal to serve as a ferroelectric component in miniaturized electronic *** this work,we design two-dimensional van der Waals heterostructures composed of anα-In_(2)Se_(3) ferroelectric and a hexagonal IV–VI semiconductor and propose an in-plane FTJ based on these *** first-principles calculations show that the electronic band structure of the designed heterostructures can be switched between insulating and metallic states by ferroelectric *** demonstrate that the in-plane FTJ exhibits two distinct transport regimes,tunneling and metallic,for OFF and ON states,respectively,leading to a giant tunneling electroresistance effect with the OFF/ON resistance ratio exceeding 1×*** results provide a promising approach for the high-density ferroelectric memory based on the 2D ferroelectric/semiconductor heterostructures.

关键词： ferroelectric plane tunneling