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国外畜牧学（猪与禽） 2024年第4期44卷 22-24页

作者：孟强(译) 王晓亮(校) 王晶晶(审) vladislav Vorotnikov 不详

随着全球气候变暖,农作物产量的变化导致饲料价格上涨,严重影响了家禽业。本文概述了气候变化对家禽业的持续影响以及欧洲家禽业面临的压力,提出可持续发展是关键,减轻气候变化的影响至关重要。

关键词：气候家禽业可持续发展

非洲最恐怖的生命禁区一百年里无人敢涉足的达洛尔

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环球人文地理 2024年第5期 96-103页

作者：李理 vladislav Radek Benot ArtushFoto Lina dinozzaver Michail mikhail cheremkin flickr

色彩绚丽的盐层让人称奇，强酸性的湖水腐蚀鞋子，车队时不时被袭击，还曾有游客被撕票……达洛尔深刻诠释了什么叫“越迷人的越危险”。达洛尔位于埃塞俄比亚东北角，被描述成一个鬼城。因为2005年之后，埃塞俄比亚中央统计局的人口报...

色彩绚丽的盐层让人称奇，强酸性的湖水腐蚀鞋子，车队时不时被袭击，还曾有游客被撕票……达洛尔深刻诠释了什么叫“越迷人的越危险”。达洛尔位于埃塞俄比亚东北角，被描述成一个鬼城。因为2005年之后，埃塞俄比亚中央统计局的人口报告中，就已没有此地区的人口数据。这里是世界上最遥远、最荒芜的地区之一，没有学校、没有商店，也没有公路，对外交通除了游客车队，就只有前往该地收集盐块的阿法尔人与骆驼。然而，这里的形势极不稳定，

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Central Asia—A Global Model for the Formation of Epigenetic Deposits in a Platform Sedimentary Cover

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Journal of Earth Science 2022年第2期33卷 278-288页

作者： Igor Pechenkin vladislav Petrov FSBI All-Russian Scientific-Research Institute of Mineral Resources MoscowRussia Institute of Geology of Ore Deposits Petrography Mineralogy and Geochemistry RAS MoscowRussia

Metallogenic specialization of sedimentary cover in Central Asia is determined by its tectonic setting that governs the hydrodynamic regime(exfiltrational or infiltrational)and as a consequence,the hydrogeochemical zonality(type of water and its gaseous and microcomponent composition).Hydrodynamic conditions(distribution of recharge and discharge areas)determine the direction of stratal water flow and location of mineralization resulted from the change in geochemical,thermodynamic,lithological,structural and other *** exfiltrational regime suggests a dependence of the epigenetic mineralization upon the distribution and degree of preservation of hydrocarbon ***,hydrocarbon matter serves as a reducing barrier and ore-concentrating factor during the formation of polymineral concentrations related to stratal oxidation *** supergene epigenetic ore-forming processes are induced by the interaction between the Earth’s sedimentary cover and *** rocks themselves commonly serve as a source of ore *** ore deposition zones on geochemical barriers and ore material source are often located significantly apart from each *** trend of these processes is determined by the position of ore-bearing depressions in large tectonic blocks.

关键词： Central Asia Kyzyl Kum Bukantau ore-forming systems epigenetic ore deposit geology

Interactive mobile equipment safety task-training in surface mining

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International Journal of Mining Science and Technology 2021年第4期31卷 743-751页

作者： Lazar Zujovic vladislav Kecojevic Dragan Bogunovic Department of Mining Engineering West Virginia UniversityMorgantown 26501USA North American Coal Corporation Farmington 87401USA

Improving the quality of equipment training for the Heavy Equipment Operators(HEO)is a critical task in improving safety and eliminating equipment-related injuries in *** of major responsibilities for the HEOs is proper machine *** miner safety training includes the use of hardcopy documents and video ***,modern mobile and computer technology offers tremendous potential to improve the training *** this study,we apply a 360-degree camera,opensource platform WordPress^(TM),and the software Unity3D in order to create materials and tools for the HEOs safety training to help trainees better understand the pre-shift safety machine *** computer-based safety task training developed in this research is tested and implemented at a surface mine in the southern United States.

关键词： Heavy equipment operators Safety task training 360-degree image/video Virtual reality

Evaluation of rope shovel operators in surface coal mining using a Multi-Attribute Decision-Making model

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International Journal of Mining Science and Technology 2014年第2期24卷 259-268页

作者： Vukotic Ivana Kecojevic vladislav Department of Mining Engineering West Virginia University

Rope shovels are used to dig and load materials in surface mines. One of the main factors that influence the production rate and energy consumption of rope shovels is the performance of the operator. This paper presents a method for evaluating rope shovel operators using the Multi-Attribute Decision-Making （MADM） model. Data used in this research were collected from an operating surface coal mine in the southern United States. The MADM model consists of attributes, their weights of importance, and alter- natives. Shovel operators are considered the alternatives, The energy consumption model was developed with multiple regression analysis, and its variables were included in the MADM model as attributes. Preferences with respect to min/max of the defined attributes were obtained with multi-objective opti- mization. Multi-objective optimization was conducted with the overall goal of minimizing energy con- sumption and maximizing production rate. Weights of importance of the attributes were determined by the Analytical Hierarchy Process （AHP）, The overall evaluation of operators was performed by one of the MADM models, i.e., PROMETHEE If. The research results presented here may be used by mining professionals to held evaluate the performance of rode shovel operators in surface mining.

关键词： Rope shovel Operator evaluation Production rate Energy consumption AHP

Age and chemical composition of the globular cluster NGC 6652

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Research in Astronomy and Astrophysics 2020年第8期20卷 252-260页

作者： Margarita Eugene Sharina vladislav Vladimirovich Shimansky Special Astrophysical Observatory Russian Academy of SciencesNizhnii Arkhyz369 l67Russia Kazan Federal University 18 Kremlyovskaya streetKazan420008Russia

We present the results of determination of the age,helium mass fraction(Y),metallicity([Fe/H]),and abundances of the elements C,N,O,Na,Mg,Ca,Ti,C and Mn for the Galactic globular cluster NGC *** use its medium-resolution integrated-light spectrum from the library of Schiavon and our population synthesis method to fulfill this *** select the evolutionary isochrone and stellar mass function for our analysis,which provide the best approximation to the shapes and intensities of the observed Balmer line *** determined elemental abundances,age and metallicity are characteristic of stellar populations in the Galactic Bulge.

关键词： globular clusters:general globular clusters:abundances globular clusters:individual:NGC 6652

Change in Grain-Size Composition of Lignite under Cyclic Freezing-Thawing and Wetting-Drying

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TRANSCRANIAL NEAR-INFRARED SPECTROSCOPY OF SMOKING BRAINS

Natural Resources（自然资源） 2024年第1期

作者： Natalia S. Batugina vladislav I. Fedorov

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Journal of Innovative Optical Health Sciences 2009年第3期2卷 227-234页

作者： OLIVIA PUCCI SANDER STEPANOV vladislav TORONOV Department of Physics Ryerson University 350 Victoria StreetTorontoONCanada M5B 2K3

We used a mobile wireless near-infrared sensor for the noninvasive recording of cerebral hemoglobin concentration changes during cigarette *** measurement included 5 min of rest,5 min of smoking imitation,and 5 min of actual *** observed significant effects of the tobacco smoking on temporal changes in the human brain at time scales ranging from 200 ms to about 1 *** most reproducible effects were an increase of the heartbeat rate and a decrease in the heartbeat power spectral density during *** but highly individual changes due to smoking were observed in temporal patterns of hemodynamic fluctuations in 5–50 s time *** have also found statistically significant slow increases in both oxy-and deoxy-hemoglobin concentrations during smoking.

关键词： Near-infrared spectroscopy hemoglobin brain smoking

Multi-Class Sentiment Analysis of Social Media Data with Machine Learning Algorithms

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Computers, Materials & Continua 2021年第10期69卷 913-930页

作者： Galimkair Mutanov vladislav Karyukin Zhanl Mamykova Al-Farabi Kazakh National University Almaty050040Kazakhstan

The volume of social media data on the Internet is constantly *** has created a substantial research field for data *** diversity of articles,posts,and comments on news websites and social networks astonishes ***,most researchers focus on posts on Twitter that have a specific format and length *** majority of them are written in the English *** relatively few works have paid attention to sentiment analysis in the Russian and Kazakh languages,this article thoroughly analyzes news posts in the Kazakhstan media *** amassed datasets include texts labeled according to three sentiment classes:positive,negative,and *** datasets are highly imbalanced,with a significant predominance of the positive *** resampling techniques(undersampling,oversampling,and synthetic minority oversampling(SMOTE))are used to resample the datasets to deal with this ***,the texts are vectorized with the TF-IDF metric and classified with seven machine learning(ML)algorithms:naïve Bayes,support vector machine,logistic regression,k-nearest neighbors,decision tree,random forest,and *** results reveal that oversampling and SMOTE with logistic regression,decision tree,and random forest achieve the best classification *** models are effectively employed in the developed social analytics platform.

关键词： Social media sentiment analysis imbalanced classes machine learning oversampling undersampling SMOTE russian Kazakh

Management of Control Impacts Based on Maximizing the Spread of Influence

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International Journal of Automation and computing 2019年第3期16卷 341-353页

作者： Alexander Tselykh vladislav Vasilev Larisa Tselykh Institute of Computer Technologies and Information Safety Southern Federal University.Rostov-on-Don 344006.Russia Department of Economics and Business Rostov State University of EconomicsRostov-on-Don 344002.Russia

The choice of fulcrums for control of socio-economic systems represented by direc ted weighted signed graphs is a topic of current *** article proposes a new method for identifying nodes of impact and influential nodes,which will provide a guaranteed positive system response over the growth *** task is posed as an optimization problem to maximize the ratio of the norms of the accumulated increments of the growth vector and the exogenous impact *** algorithm is reduced to solving a quadratic programming problem with nonlinear *** selection of the most effective vertices is based on the cumulative gains of the component projections onto the solution *** examples arc provided to illustrate the effectiveness of the proposed method.

关键词： Directed weighted graphs control impact spread of influence optimization algorithm growth model