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Profiling and geographical distribution of seed oil content of sunflower in Ukraine

Oil Crop Science 2023年第2期8卷 111-120页

作者： vasyl petrenko Andriy Topalov Liudmyla Khudolii Yuliia Honcharuk Valeria Bondar Department of Grain Technologies Institute of Food Resources NAASKyivUkraine Department of Computerized Control Systems of the Admiral Makarov National University of Shipbuilding MykolaivUkraine Department of Application Acceptance Institute of Plant Variety ExaminationKyivUkraine Scientific Secretary Institute of Horticulture NAAS KyivUkraine Department of Ecology National University of Life and Environmental SciencesKyivUkraine

The sunflower has the potential to be a highly competitive crop owing to its diversity market and the valuable oil it ***,the amount of sunflower seed oil-a key factor for the crushing industry-is affected by genotype and environment,which sometimes is difficult to *** paper analyzes the theoretical principles of sunflower growth in Ukraine,highlights the current trends in the sowing of this crop,the influence of climatic factors of the environment on the prospects of the oilseed sunflower *** results of the research are presented for 3 years(2014-2016),during the authors conducted a grain quality observatory at the regional level,taking into account the climatic conditions of sunflower growth in different natural zones of Ukraine(from 45to 51north latitude and from 22to 37east longitude).Additionally,the research includes the coefficient of significance of the deviation from long-term climatic indicators,which makes it possible to forecast sunflower yield in the *** analyzed data was obtained from the commercial fields with a minimum area of 40 ha in all Ukrainian regions except Crimea peninsula,Donetsk and Luhansk *** results obtained in research show the great diversity of oil content index as per both latitude and longitude *** we consider the entire country,this survey shows that the seed oil content can change dramatically from year to year:e.g.47.5%in one year versus 45.7%in another ***,these changes have a completely different dynamic with a gradual decrease in seed oil content in the southern part of the *** main goal of the research was to identify the best sunflower growing areas in Ukraine according to the oil content index.

关键词： Sunflower seeds Oil content Longitude Latitude Location

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δ相诱导GH4169合金楔横轧心部缺陷形成机理

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材料科学与工艺 2024年

作者：甘洪岩程明刘家旭宋鸿武 Vladimir petrenko 张士宏沈阳职业技术学院中国科学院金属研究所白俄罗斯科学院物理技术研究所

楔横轧工艺中常见的心部缺陷问题限制了该工艺在航空航天领域的发展。针对此问题，以GH4169合金楔横轧件为实验对象，采用OM、SEM对轧件的微观组织进行表征，并在轧制前预析出不同含量的δ相，探讨δ相含量对心部缺陷形成的影响。同时... 详细信息

楔横轧工艺中常见的心部缺陷问题限制了该工艺在航空航天领域的发展。针对此问题，以GH4169合金楔横轧件为实验对象，采用OM、SEM对轧件的微观组织进行表征，并在轧制前预析出不同含量的δ相，探讨δ相含量对心部缺陷形成的影响。同时，借助有限元数值模拟软件对楔横轧过程中轧件的金属流动、应力、应变等演化规律进行分析。结果表明：楔横轧成形过程中预析出的短小片层状δ相会发生球化行为，转变成短棒状和颗粒状δ相。其中，完全球化的δ相对轧件心部缺陷无明显影响，而未完全球化的片层状δ相在楔横轧过程中因为轴向拉应力和周向剪切应力的共同作用易成为心部裂纹源，导致轧件心部出现缺陷。此外，在分析金属流动规律时发现，轧件心部的金属在径向有异常流动的趋势，且存在异常流动临界半径。

关键词： GH4169合金楔横轧心部缺陷 δ相临界半径

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Artificial enhancement of sturgeon stock in freshwater reservoirs:A case study on sterlet Acipenser ruthenus of the Kama reservoir

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Aquaculture and Fisheries 2024年第2期9卷 287-294页

作者： Pavel B.Mikheev Semyon N.Kazarinov Alla G.Melnikova Stanislav V.Ponosov Nikolai G.petrenko Andrei I.Nikiforov Alexey Yu Puzik Olga N.Elchenkova Perm State National Research University Perm614990Russia Khabarovsk Branch of the Federal State Budget Scientific Institution“Russian Federal Research Institute of Fisheries and Oceanography”“KhabarovskNIRO” Khabarovsk680038Russia Perm Branch of the Federal State Budget Scientific Institution“Russian Federal Research Institute of Fisheries and Oceanography”“PermNIRO” Perm614991Russia Federal State Budget Scientific Institution“Russian Federal Research Institute of Fisheries and Oceanography”“VNIRO” Moscow117454Russia Moscow State Institute of International Relations(University)of the Ministry for Foreign Affairs of Russia“MGIMO” Moscow117454Russia Department of State Control Supervision and Protection of Aquatic Biological Resources for Perm KraiMiddle-Volga Regional Office of the Federal Fishery AgencyPerm614990Russia

The paper presents the results of the sterlet sturgeon Acipenser ruthenus reintroduction into the Kama Reservoir(Perm Krai,Russia)by sterlet fry from hatcheries into the reservoir since *** effectiveness of hatchery releases was evaluated by monitoring gillnet sampling *** results showed that the species was reported throughout entire Kama Reservoir,which contrasts with 1988-1994 data,when the species was registered only at the upper part of the reservoir near the Kama River *** highest number and biomass values of catch per unit effort(CPUE)of the sterlet were found in submerged river channels-the deepest habitats with flow conditions which are close to the ecological requirements of the *** distribution of the sterlet within the channel biotopes of the reservoir is defined by reduced *** biggest individuals and the widest size range of the sterlet were typical for the upper area of the reservoir and Chusovskoy Bay,which have the greatest *** smallest sizes were typical for fish from catches near the dam of the reservoir,which is consistent with the published data on the distribution of sterlet in reservoir *** presented results may indicate the artificial formation of the sterlet stock in the Kama Reservoir maintained by hatchery *** revealed distribution of the sterlet in the reservoir determines the direction of further research on natural reproduction and thus formation of an artificially formed ***,future studies are required to assess the possibility of hybridization of the sterlet of artificial origin with natural populations of the species,since the low genetic diversity of the sterlet released into the Kama Reservoir which can lead to irreversible loss of genetic individuality of the natural stocks of the species in the catchment of upper course of the Kama River.

关键词： Sterlet Acipenser ruthenus Kama reservoir Hatchery releases CPUE Artificial stock formation

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Novel evaluation method for metal workability during cross wedge rolling process

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Advances in Manufacturing 2021年第3期9卷 473-481页

作者： Ming Cheng Ming-Jie Shi petrenko Vladimir Rui-Xue Wang Shi-Hong Zhang Institute of Metal Research(IMR) Chinese Academy of Sciences(CAS)Shenyang110016People’s Republic of China School of Materials Science and Engineering University of Science and Technology of ChinaHefei230026People’s Republic of China Physical-Technical Institute of the National Academy of Sciences of Belarus 220141MinskBelarus

This study presents a novel method using a disk-like sample to assess the workability of metal during the cross wedge rolling(CWR)*** this method,we can quantitatively evaluate the moment destruction which occurs at the center of the sample during *** this study,45 steel was selected to demonstrate the proposed ***,we designed a model for the tools and sample,conducted finite element simulations to analyze the distribution regulations of metal flow,stress,and strain,and evaluated the relationship between the damage and moving distance of the tool during the forming ***,we obtained the optimal deformation temperature range,rolling speed,and geometry parameters for the ***,experiments were conducted from 20℃ to 1200℃ to verify the accuracy of the developed *** was demonstrated that the model was significantly accurate in accessing the workability of 45 steel in the CWR *** proposed method could be generalized to investigate the CWR process for other materials,such as aluminum alloys,superalloys,titanium alloys,etc.

关键词： Cross wedge rolling(CWR) 45 steel Workability Damage Finite element simulation

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Phenomena at three-phase electroslag remelting

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China Foundry 2021年第6期18卷 557-564页

作者： Zhong-li Liu Lev Medovar Ganna Stovpchenko Volodymyr petrenko Artem Sybir Yev.Volchenkov Yantai University Yantai 264005ShandongChina E.O.Paton Electric Welding Institute Kyiv 03180Ukraine National metallurgical academy of Ukraine Dnipro 49600Ukraine

The electroslag remelting(ESR)process is widely used to produce high-quality ingots and billets for high-alloyed steels and *** the single-phase and three-phase alternating current diagram with bifilar and monofilar connection are in use for heavy ingot *** numerical simulation of the three-phase bifilar circuit for the 120 t three-phase bifilar six-electrode ESR furnace at different variants of electric connection was presented and *** the bifilar diagram of power supply,the geometrical location of electrodes in a mould holds critical importance for performances:the close location of bifilar pair electrodes provides the highest heat productivity,but the equidistant location of electrodes gives a much more uniform heat *** monofilar mulit-electrode diagram of three-phase connection without phase shift shows the most uniform distribution of potential and heat generation as well as a favorable magnetic field that makes this kind the most promising for providing a high quality of heavy ingots.

关键词： electroslag remelting three-phase circuit bifilar monofilar simulation heavy ingot

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Method for Calculating Cartesian Coordinates of Operator’s Arm Joints for Anthropomorphic Manipulator Master⁃Slave Control Using Exoskeleton

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Journal of Harbin Institute of Technology(New Series) 2021年第5期28卷 38-46页

作者： Viacheslav petrenko Fariza Tebueva Vladimir Antonov Mikhail Gurchinsky Nikolay Svistunov Institute of Information Technologies and Telecommunications North-Caucasus Federal UniversityStavropol 355009Russian Federation

The main goal of the work is to increase the accuracy of the anthropomorphic manipulator master⁃slave teleoperation by calculating the coordinates of the operator’s arm *** master device is an exoskeleton worn on the operator’s arm,and the slave device is an anthropomorphic manipulator.A method based on the solution of the forward kinematics and empirical simplifications is proposed in this *** position of the nodal points of the exoskeleton was calculated by solving the direct kinematics *** coordinates of the operator’s arm joints,which were rigidly connected to the exoskeleton nodal points,were calculated *** the operator’s arm elbow joint,which was flexibly connected to the exoskeleton,an empirical relation was *** simplified the calculation of the elbow joint *** experiment showed a decrease in the mismatch between the operator’s arm angles and the manipulator joint angles from 20.7°to 2.9°.The proposed method increases the convenience of the master⁃slave control.

关键词： robotics anthropomorphic manipulator exoskeleton motion capture teleoperation

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Modeling of cold-temperate tree Pinus koraiensis (Pinaceae) distribution in the Asia-Pacific region: Climate change impact

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Forest Ecosystems 2022年第2期9卷 160-167页

作者： Tatyana Y.petrenko Kirill A.Korznikov Dmitry E.Kislov Nadezhda G.Belyaeva Pavel V.Krestov Botanical Garden-Institute FEB RAS Makovskogo St.142Vladivostok690024Russia Institute of Geography RAS Staromonetniy 24-4Moscow119017Russia

Background:Pinus koraiensis Siebold&Zucc.(Korean pine)is a key species of the mixed cold temperate forests of Northeast *** climate change can significantly worsen the quality of *** habitats and therefore lead to a large-scale structural and functional transformation of the East Asian mixed *** built a species distribution model(SDM)for *** using the random forest classifier–a versatile machine learning al-gorithm,to discover overlap areas of potential species occurrence in the climate condition of the Last Glacial Maximum(~21,000 year before present)and in the projected future climates(2070 year),from which possible permanent refugia for *** were ***:Using the random forest supervised learning algorithm,we developed models of the modern distribution of *** in accordance with the five selected bioclimatic variables(Kira’s warmth and coldness indices,the index of continentality,the rain precipitation index,and the snow precipitation index).In addition to current climatic conditions,we performed this analysis for the climate of the Last Glacial Maximum and for the future projected climate(2070)under scenarios RCP2.6 and *** the predictors,the rain index appears to be the most *** land area estimates with high suitability for *** was 303,785 km 2 under current climatic conditions,586,499 km 2 for the Last Glacial Maximum,and 337,573 km^(2) for the future(2070)period under the RCP2.6 scenario,and 397,764 km^(2) under the RCP8.5 ***:Most of the potential range of *** during the Last Glacial Maximum was located outside the current distribution area of the *** climatically suitable *** habitats will likely disappear in the western part of its modern *** the southern part of the range,which includes glacial refugia,the areas of continuous distribution of the *** populations since the end of the Pleistocene are expected to

关键词： Climate change Bioclimatic modeling Species distribution model Korean pine Northeast Asia

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GH4169合金楔横轧微观组织演变及动态再结晶机制

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稀有金属材料与工程 2019年第11期48卷 3556-3562页

作者：甘洪岩程明宋鸿武陈岩张士宏 Vladimir petrenko 中国科学院金属研究所辽宁沈阳110016 中国科学技术大学辽宁沈阳110016 白俄罗斯科学院物理技术研究所白俄罗斯明斯克220141

采用金相显微镜和电子背散射衍射(EBSD)技术分析了楔横轧制备的GH4169合金轧件的微观组织演变和动态再结晶机制;利用数值分析方法获得了楔横轧过程中等效应变、应变速率和温度的相互关系和变化规律,并探讨对楔横轧GH4169合金动态再结晶... 详细信息

采用金相显微镜和电子背散射衍射(EBSD)技术分析了楔横轧制备的GH4169合金轧件的微观组织演变和动态再结晶机制;利用数值分析方法获得了楔横轧过程中等效应变、应变速率和温度的相互关系和变化规律,并探讨对楔横轧GH4169合金动态再结晶的影响。结果表明,楔横轧的变形特点是导致GH4169合金组织均匀和动态再结晶机制不同的主要原因,较大的断面收缩率有利于组织均匀化;轧件表面以非连续动态再结晶机制为主,而心部以连续动态再结晶机制为主。

关键词： GH4169合金楔横轧微观组织动态再结晶

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面向难变形材料精密成形的板式楔横轧机研究

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中国机械工程 2022年第2期33卷 209-216页

作者：师明杰程明张士宏 VLADIMIR petrenko GRAZHINA Valerievna Kozhevnikova 中国科学院金属研究所师昌绪先进材料创新中心沈阳110016 中国科学技术大学材料科学与工程学院沈阳110016 白俄罗斯科学院物理技术研究所明斯克220141白俄罗斯

为满足楔横轧工艺研究的需要,推动板式楔横轧机在我国的应用与发展,中国科学院金属研究所与白俄罗斯科学院物理技术研究所共同开展了高精度板式楔横轧机(IM500)的研制工作。IM500轧机采用卧式水平结构和液压驱动的单板可动设计方案,由... 详细信息

为满足楔横轧工艺研究的需要,推动板式楔横轧机在我国的应用与发展,中国科学院金属研究所与白俄罗斯科学院物理技术研究所共同开展了高精度板式楔横轧机(IM500)的研制工作。IM500轧机采用卧式水平结构和液压驱动的单板可动设计方案,由主体机械结构、液压站、电控柜三部分组成。在主体机械结构方案设计过程中,采用有限元模拟方法进行同步校核优化。在IM500轧机上,分别采用45钢、GH4169、TC11三种材料进行楔横轧实验。结果表明该轧机具有轧件尺寸精度高、维护和更换零部件方便、自动化程度高等突出优点。

关键词：难变形材料高精度板式楔横轧机液压驱动有限元模拟

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Poriferan chitin as a template for hydrothermal zirconia deposition

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Frontiers of Materials Science 2013年第3期7卷 248-260页

作者： Marcin WYSOKOWSKI Mykhaylo MOTYLENKO Vasilii V. BAZHENOV Dawid STAWSKI lroslav petrenko Andre EHRLICH Thomas BEHM Zoran KLJAJIC Allison L. STELLING Teofil JESIONOWSKI Hermann EHRLICH Institute of Chemical Technology and Engineering Poznan University of Technology 60965 Poznan Poland Institute of Materials Science TU Bergakademie Freiberg D-09599 Freiberg Germany Institute of Experimental Physics TU Bergakademie Freiberg 09599 Freiberg Germany Department of Commodity and Material Sciences and Textile Metrology Technical University of Lodz 90924 Lodz Poland Institut fur Eisenund Stahltechnologie TU Bergakademie Freiberg 09599 Freiberg Germany Institute of Mineralogy TU Bergakademie Freiberg 09599 Freiberg Germany Institute of Marine Biology University of Montenegro 85330 Kotor Montenegro Department of Mechanical Engineering and Materials Science Duke University 27708 Durham NC USA

Chitin is a thermostable biopolymer found in various inorganic-organic skeletal structures of numerous invertebrates including sponges （Porifera）. The occurrence of chitin within calcium- and silica-based biominerals in organisms living in extreme natural conditions has inspired development of new （extreme biomimetic） synthesis route of chitin-based hybrid materials in vitro. Here, we show for the first time that 3D-a-chitin scaffolds isolated from skeletons of the marine sponge Aplysina aerophoba can be effectively mineralized under hydrothermal conditions （150℃） using ammonium zirconium（IV） carbonate as a precursor of zirconia. Obtained chitin-ZrO2 hybrid materials were characterized by FT-IR, SEM, HRTEM, as well as light and confocal laser microscopy. We suggest that formation of chitin-ZrO2 hybrids occurs due to hydrogen bonds between chitin and ZrO2.

关键词： chitin biocomposite zirconia hydrothermal synthesis ammonium zirco-nium carbonate

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