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Journal of Power and Energy Engineering 2013年第5期1卷 95-100页

作者： Huaneng Su Sivakumar Pasupathi Bernard Bladergroen vladimir Linkov Bruno g. Pollet HySA Systems Competence Centre South African Institute for Advanced Materials Chemistry University of the Western Cape Private Bag X17 Bellville 7535 South Africa

Different types of ABPBI (poly(2,5-benzimidazole)) membranes and polymer binders were evaluated to investigate the performance of MEAs for high temperature proton exchange membrane fuel cell (HT-PEMFC). The properties of the prepared MEAs were evaluated and analyzed by polarization curve, electrochemistry impedance spectroscopy (EIS), cyclic voltammetry (CV) and durability test. The results showed that MEA with modified ABPBI membrane (AM) has satisfactory performance and durability for fuel cell application. Compare to conventional PBI or Nafion binders, polytetrafluoroethylene (PTFE) and polyvinylidene difluoride (PVDF) are more attractive as binders in the catalyst layer (CL) of gas diffusion electrode (gDE) for HT-PEMFC.

关键词： High Temperature Proton Exchange Membrane Fuel Cell ABPBI (Poly(2 5-Benzimidazole)) Polymer Binders gas Diffusion Electrode Membrane Electrode Assembly

Climate change evidence in tree growth and stand productivity at the upper treeline ecotone in the Polar Ural Mountains

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Forest Ecosystems 2020年第1期7卷 76-91页

作者： Nadezhda M.Devi vladimir V.Kukarskih Аrina A.galimova Valeriy S.Mazepa Andrey A.grigoriev Institute of Plant and Animal Ecology Ural BranchRussian Academy of Sciences8 Marta202/3Ekaterinburg 620144Russia

Background:Recent warming is affecting species composition and species areal distribution of many ***,although most treeline studies have estimated the rates of forest expansion into tundra,still little is known about the long-term dynamic of stand productivity at the forest-tundra ***,we make use of tree-ring data from 350 larch(Larix sibirica Ledeb.)and spruce(Picea obovata Ledeb.)sampled along the singular altitudinal treeline ecotone at the Polar Urals to assess the dynamic of stand establishment and productivity,and link the results with meteorological observations to identify the main environmental ***:The analysis of stand instalment indicated that more than 90%of the living trees appeared after *** this period,the stand became denser and moved 50m upward,while in recent decades the trees of both species grew *** maximum afforestation occurred in the last decades of the twentieth century,and the large number of encountered saplings indicates that the forest is still *** upward shift coincided with a slight increase of May-August and nearly doubling of September-April precipitation while the increase in growth matched with an early growth season warming(June+0.27°C per decade since 1901).This increase in radial growth combined with the stand densification led to a 6-90 times increase of biomass since ***:Tree-ring based twentieth century reconstruction at the treeline ecotone shows an ongoing forest densification and expansion accompanied by an increased *** changes are driven by climate change mechanism,whereby the leading factors are the significant increase in May-June temperatures and precipitation during the dormant *** of phytomass accumulation mechanisms within treeline ecotone is valuable for improving our understanding of carbon dynamics and the overall climate balance in current treeline ecosystems and for predicting how these will be altered by global ch

关键词： Polar Urals Treeline Productivity Climate change Radial growth Recruitment Larch Spruce

Element selection for functional materials discovery by integrated machine learning of elemental contributions to properties

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npj Computational Materials 2023年第1期9卷 639-648页

作者： Andrij Vasylenko Dmytro Antypov vladimir V.gusev Michael W.gaultois Matthew S.Dyer Matthew J.Rosseinsky Department of Chemistry University of LiverpoolCrown StreetLiverpool L697ZDUnited Kingdom Department of Computer Science University of LiverpoolAshton StreetLiverpool L693BXUnited Kingdom

The unique nature of constituent chemical elements gives rise to fundamental differences in *** materials based on their phase fields,defined as sets of constituent elements,before specific differences emerge due to composition and structure can reduce combinatorial complexity and accelerate screening,exploiting the distinction from composition-level *** and evaluation of novelty of materials classes align with the experimental challenge of identifying new areas of *** address this,we present PhaseSelect,an end-to-end machine learning model that combines representation,classification,regression and novelty ranking of phase *** leverages elemental characteristics derived from computational and experimental materials data and employs attention mechanisms to reflect the individual element contributions when evaluating functional performance of phase *** demonstrate this approach for high-temperature superconductivity,high-temperature magnetism,and targeted bandgap energy applications,showcasing its versatility and potential for accelerating materials exploration.

关键词： materials phase elements

Pediatric gNAO1 encephalopathies:from molecular etiology of the disease to drug discovery

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Neural Regeneration Research 2023年第10期18卷 2188-2189页

作者： vladimir L.Katanaev Jana Valnohova Denis N.Silachev Yonika A.Larasati Alexey Koval Translational Research Centre in Oncohaematology Department of Cell Physiology and MetabolismFaculty of MedicineUniversity of GenevaGenevaSwitzerland Institute of Life Sciences and Biomedicine Far Eastern Federal UniversityVladivostokRussia Department of Functional Biochemistry of Biopolymers A.N.Belozersky Research Institute of Physico-Chemical BiologyMoscow State UniversityMoscowRussia

gao is the major g protein in neurons,where it transduces signals from numerous g proteincoupled receptors(gPCRs)such as D2 dopamine,μ-opioid,M2 muscarinic,or α2-adrenergic *** 2013,the first mutations in gNAO1,the gene encoding gao,were described in pediatric patients with encephalopathies(Nakamura et al.,2013),suffering from movementdisorders,epileptic seizures。

关键词： encephalo opioid

Studies of ultrasonic dehydration efficiency

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2011年第4期12卷 247-254页

作者： vladimir N. KHMELEV Andrey V. SHALUNOV Roman V. BARSUKOV Denis S. ABRAMENKO Andrey N. LEBEDEV Biysk Technological Institute (Branch) Altai State Technical University

The aim of this investigation was to define the effectiveness of non-contact drying using ultrasonic vibrations. Disk radiators were used for carrying out experiments, and a special drying chamber was designed to provide resonant amplification of ultrasonic vibrations (from 130 to 150 dB). Drying of ginseng and other vegetables demonstrated that the application of ultrasonic vibrations reduced power inputs by 20% in comparison with convective drying. It also led to a decrease of 6% in final moisture content, if the duration of drying was constant. The level of intensification of ultrasonic drying was high (up to 50 g for 1 kg of drying material), which helped to lower the temperature of the drying agent and improve the quality of the dried products.

关键词： Drying Ultrasound Vibration system Drying chamber Processing (treatment) of agricultural products

Effects of differently polarized microwave radiation on the microscopic structure of the nuclei in human fibroblasts

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2010年第10期11卷 801-805页

作者： Yuriy g.SHCKORBATOV vladimir N.PASIUgA Elena I.gONCHARUK Tatiana Ph.PETRENKO Valentin A.gRABINA Nicolay N.KOLCHIgIN Dmitry D.IVANCHENKO Victor N.BYKOV Oleksandr M.DUMIN Kharkiv National University Institute for Problems of Cryobiology and Cryomedicine of the National Academy of Sciences of Ukraine

To investigate the influence of microwave radiation on the human fibroblast nuclei,the effects of three variants of electromagnetic wave polarization,linear and left-handed and right-handed elliptically polarized,were *** conditions were:frequency(f) 36.65 gHz,power density(P) at the surface of exposed object 1,10,30,and 100 μW/cm2,exposure time 10 *** fibroblasts growing in a monolayer on a cover slide were exposed to microwave electromagnetic *** layer of medium that covered cells during microwave exposure was about 1 mm *** were stained immediately after irradiation by 2%(w/v) orcein solution in 45%(w/v) acetic *** were made at room temperature(25 °C),and control cell samples were processed in the same *** assessed heterochromatin granule quantity(HgQ) at 600× *** irradiation at the intensity of 1 μW/cm2 produced no effect,and irradiation at the intensities of 10 and 100 μW/cm2 induced an increase in *** intense irradiation induced more chromatin *** right-handed elliptically polarized radiation revealed more biological activity than the left-handed polarized one.

关键词： Human cells Chromatin Heterochromatin Electromagnetic field Elliptical polarization

MIL-101固载磷钨酸催化氧气氧化脱硫性能

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化工学报 2016年第S1期67卷 283-288页

作者：丁建伟王睿于美青 Korchak vladimir 山东大学环境科学与工程学院山东济南250199 俄罗斯科学院西蒙诺夫化学物理研究所莫斯科119991

采用一步包覆法成功地将磷钨酸(HPW)固载到多金属有机骨架MIL-101中,将其作为催化剂,氧气(O2)作为氧化剂,用于催化氧化模拟油品的脱硫实验。系统地研究了氧气流速、反应温度、硫含量对脱硫效率的影响,筛选出最佳反应条件,同时考察了空... 详细信息

采用一步包覆法成功地将磷钨酸(HPW)固载到多金属有机骨架MIL-101中,将其作为催化剂,氧气(O2)作为氧化剂,用于催化氧化模拟油品的脱硫实验。系统地研究了氧气流速、反应温度、硫含量对脱硫效率的影响,筛选出最佳反应条件,同时考察了空气作为氧化剂用于油品脱硫的可行性。结果表明,当初始硫含量为350μg·g^(-1),氧气流速为90ml·min^(-1),反应温度为75℃,催化剂用量占模拟油品质量的1%,反应时间60min,二苯并噻吩(DBT)的转化率可达74%。此外,通过重复利用实验证明催化剂有良好的再生活性。

关键词：氧化脱硫催化磷钨酸金属有机骨架氧气再生

H_3PW_(12)O_(40)/CNTs吸附-分解NO_x及微波作用效果

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高等学校化学学报 2012年第8期33卷 1826-1834页

作者：张学杨程琳杨烽王睿 Korchak vladimir 山东大学环境科学与工程学院济南250100 山东大学化学化工学院济南250100 北京大学化学与分子工程学院北京100871 俄罗斯科学院西蒙诺夫化学物理研究所多相催化实验室莫斯科119991

将碳纳米管(CNTs)载体分别经混酸与硝酸蒸气预处理并在不同温度下煅烧,然后分别采用浸渍法及机械研磨法负载磷钨酸(HPW),制备出HPW/CNTs催化剂,对比考察了上述催化剂对NOx的吸附与分解效果.在空速为10000 h-1、吸附温度为200℃的条件下,... 详细信息

将碳纳米管(CNTs)载体分别经混酸与硝酸蒸气预处理并在不同温度下煅烧,然后分别采用浸渍法及机械研磨法负载磷钨酸(HPW),制备出HPW/CNTs催化剂,对比考察了上述催化剂对NOx的吸附与分解效果.在空速为10000 h-1、吸附温度为200℃的条件下,用0.5 g催化剂对1696 mg/m3的NOx进行吸附实验,结果表明,以硝酸蒸气预处理且经300℃煅烧后的CNTs为载体,采用机械研磨负载法制备的催化剂HPW/CNTs对NOx的吸附率与吸附能力最高,分别为54%与16.6 mg NOx/(g.h).对吸附NOx后的催化剂体系进行了催化分解NOx的程序升温脱附-质谱(TPD-MS)研究,结果表明,所吸附的NOx在快速升温过程中发生分解,在此过程中有氧产生,分解产物包括N2,O2及N2O.采用电阻炉快速加热与微波辐射2种方式分别对吸附的NOx进行催化分解,结果表明,微波功率为700 W时,NOx分解为N2的收率为33.3%,高于电阻炉以150℃/min快速升温的N2收率.使用过的催化剂通水蒸气后可实现再生,对再生后的催化剂进行循环使用研究,结果表明,再生后的催化剂吸附与催化分解NOx的性能未有明显下降.

关键词：氮氧化物磷钨酸碳纳米管微波辐射吸附-分解

Mathematical Models of Receptivity of a Robot and a Human to Education

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Intelligent Control and Automation 2014年第3期5卷 97-101页

作者： Oleg g. Pensky vladimir O. Michailov Kirill V. Chernikov Perm State University Perm Russia

The paper gives general definitions of the mathematical theory of emotional robots able to forget older information. A formalized concept of relative receptivity of the robot to education is introduced. An algorithm of a voice training program for public speakers described in the paper is based on the theory of emotional robots. Also the paper presents a method of estimation of a coefficient of human emotional memory and estimation of a relative receptivity of a robot and a human to education;the method is based on application of the voice training program.

关键词： Robot Robot’s Education Receptivity to Education Memory Emotions of Robots