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The experience of land cover change detection by satellite data

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Frontiers of Earth Science 2012年第2期6卷 140-146页

作者： Lev SPIVAK Irina VITKOVSKAYA madina BATYRBAYEVA Alexey TEREKHOV The Institute of Space Research National Centre of Space Research and Technology of the Republic of Kazakhstan Almaty 050010 Kazakhstan

Sigificant dependence from climate and anthropogenic influences characterize ecological systems of Kazakhstan. As result of the geographical location of the republic and ecological situation vegetative degradation sites exist throughout the territory of Kazakhstan. The major process of desertification takes place in the arid and semi-arid areas. To allocate spots of stable degradation of vegetation, the transition zone was first identified. Productivity of vegetation in transfer zone is slightly dependent on climate conditions. Multi-year digital maps of vegetation index were generated with NOAA satellite images. According to the result, the territory of the republic was zoned by means of vegetation productivity criterion. All the arable lands in Kazakhstan are in the risky agriculture zone. Estimation of the productivity of agricultural lands is highly important in the context of risky agriculture, where natural factors, such as wind and water erosion, can significantly change land quality in a relatively short time period. We used an integrated vegetation index to indicate land degradation measures to assess the inter-annual features in the response of vegetation to variations in climate conditions from low- resolution satellite data for all of Kazakhstan. This analysis allowed a better understanding of the spatial and temporal variations of land degradation in the country.

关键词： remote sensing NOAA land cover changes,vegetation indexes

Research on Demand Response Strategy in Integrated Energy System

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Research on Demand Response Strategy in Integrated Energy Sy...

作者： Toiymbekova madina 华北电力大学(北京)

学位级别：硕士

The main objective of this research is a demonstration the efficiency of demand response strategy in integrated energy system（IES）.To obtain desired research results,an integrated energy system（combined electricity,heat and gas）for an example of a real agglomeration has been *** options are possible when using the IES to optimize or plan the power supply of one ***,the problem arises of selection the most optimal option for power supply in the existing ***,a mathematical model for choosing an optimal power supply option for a given agglomeration（taking into account existing energy sources,heat,electric and gas networks,level of load consumption,etc.）was *** to this model and the results of calculations,the optimal power supply option was selected using real statistical data of load and price changes in considered energy *** option provides the implementation of distributed generation（DG）*** optimal loading of selected DG units the mathematical model and calculation methodology have been *** model allows optimizing the usage of DG units and minimizing the discounted costs of selected power supply option that makes this option more *** response approach in thesis is considered from developed bi-level optimization problem:maximization of retailer’s profit and minimization of consumers’*** of the demand response strategy on the part of the retailer and the consumer allows to create a more accurate mathematical model that takes into account many uncertainties of the electricity market,as well as to demonstrate the effectiveness of DR from both the consumer and the retailer *** efficiency of demand response strategy is shown on the simulated demand response model and calculated results of real consumer’s load *** on the obtained results,the efficiency of demand response strategy to the optimal developed IES for a given agglomera

关键词：集成能源系统需求响应分布式发电机组燃气网络最佳电源供应

The Impact of Monetary Policy on the Banks’ Risk-Taking in Russia in the Period 2000-2016

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The Impact of Monetary Policy on the Banks’ Risk-Taking in ...

作者： madina ORYSKHAN 浙江工商大学

学位级别：硕士

在一个经营良好的银行业货币概念框架内,只有通过实施灵活的中央银行货币政策,才能有效地发展现代市场经济。俄联邦中央银行的系统性决定了对货币供应量的管制,从而使其能够控制通货膨胀和经济增长过程的管理,从而影响到国际收支的平衡... 详细信息

在一个经营良好的银行业货币概念框架内,只有通过实施灵活的中央银行货币政策,才能有效地发展现代市场经济。俄联邦中央银行的系统性决定了对货币供应量的管制,从而使其能够控制通货膨胀和经济增长过程的管理,从而影响到国际收支的平衡。在俄现行立法框架内选择国家经济的货币和信贷监管方法和措施方面,CBR拥有最广泛的权力和完全独立性。对于俄罗斯的货币政策,利率和再融资利率是其关键机制。由于这些关键保证金利率的波动,CBR对商业银行的风险承担行为产生了影响。本研究通过使用2000-2016年期间50家主要的俄罗斯国内银行风险处理事项的银行数据,考察了货币政策对银行风险承担能力的影响程度。主要研究表明,扩张性货币政策通过较低的再融资率向商业银行提供更多的资金来增加其资源,从而鼓励它们扩大其资本化和盈利能力,反过来又会扩大银行承担风险的欲望。此外,通过HP滤波器应用的替代模型得出的结果表明,不同货币政策的周期性行为对银行的借贷意愿有不同的影响,而扩张性货币政策代理服务的关键平滑作用与银行的风险指标高度相关。当利率长时间过低时,货币政策鼓励增加风险承担,在上升期内,可以改变银行的风险感知。最后,着重阐述了俄罗斯银行贷款行为的所有制结构,我们的研究结果表明国有银行的贷款质量较低,且国有银行的风险违约率高于私营分支银行。目前对俄罗斯联邦的持续制裁导致商业机构的减少,尽管银行部门拥有所有权结构,却高度依赖货币政策法规。通过广义估计值来衡量货币政策变量对这些银行欲望风险的影响程度。

关键词：货币政策商业银行银行承担风险广义矩估计

Ensemble Approach Combining Deep Residual Networks and BiGRU with Attention Mechanism for Classification of Heart Arrhythmias

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Computers, Materials & Continua 2024年第7期80卷 341-359页

作者： Batyrkhan Omarov Meirzhan Baikuvekov Daniyar Sultan Nurzhan Mukazhanov madina Suleimenova Maigul Zhekambayeva Department of Information Systems Al-Farabi Kazakh National UniversityAlmaty050040Kazakhstan Department of Mathematical and Computer Modeling International Information Technology UniversityAlmaty050040Kazakhstan Department of Software Engineering Satbayev UniversityAlmaty050013Kazakhstan

This research introduces an innovative ensemble approach,combining Deep Residual Networks(ResNets)and Bidirectional Gated Recurrent Units(BiGRU),augmented with an Attention Mechanism,for the classification of heart *** escalating prevalence of cardiovascular diseases necessitates advanced diagnostic tools to enhance accuracy and *** model leverages the deep hierarchical feature extraction capabilities of ResNets,which are adept at identifying intricate patterns within electrocardiogram(ECG)data,while BiGRU layers capture the temporal dynamics essential for understanding the sequential nature of ECG *** integration of an Attention Mechanism refines the model’s focus on critical segments of ECG data,ensuring a nuanced analysis that highlights the most informative features for arrhythmia *** on a comprehensive dataset of 12-lead ECG recordings,our ensemble model demonstrates superior performance in distinguishing between various types of arrhythmias,with an accuracy of 98.4%,a precision of 98.1%,a recall of 98%,and an F-score of 98%.This novel combination of convolutional and recurrent neural networks,supplemented by attention-driven mechanisms,advances automated ECG analysis,contributing significantly to healthcare’s machine learning applications and presenting a step forward in developing non-invasive,efficient,and reliable tools for early diagnosis and management of heart diseases.

关键词： CNN BiGRU ensemble deep learning ECG arrhythmia heart disease

From food waste to high-capacity hard carbon for rechargeable sodium-ion batteries

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Carbon Resources Conversion 2024年第3期7卷 66-73页

作者： madina Kalibek Lunara Rakhymbay Zhanar Zhakiyeva Zhumabay Bakenov Seung-Taek Myung Aishuak Konarov Department of Chemical and Materials Engineering School of Engineering and Digital SciencesNazarbayev University53 Kabanbay Batyr Ave.AstanaKazakhstan Hybrid Materials Research Center Department of Nanotechnology and Advanced Materials EngineeringSejong Battery InstituteSejong UniversitySeoul 05006South Korea

In this study,we introduce a straightforward and effective approach to produce P-doped hard carbon using coffee grounds as the precursor,with H_(3)PO_(4)serving as the doping *** varying the concentrations of H_(3)PO_(4)(1 M,2 M,and 3 M),we aimed to determine the optimal doping level for maximizing the incorporation of phosphorus ions into the carbon *** investigation revealed that using 2 M of H_(3)PO_(4)as the dopant material for hard carbon led to promising electrochemical performance when employed as an anode material for sodium-ion *** P-doped hard carbon,carbonized at 1300℃,exhibited an impressive reversible capacity of 341 mAh g^(-1) at a current density of 20 mA g^(-1),with an initial Coulombic efficiency(ICE)of 83%.This outstanding electrochemical performance of P-doped hard carbon can be attributed to its unique properties,including a porous agglomerated structure,a significant interlayer spacing,and the formation of C-P bonds.

关键词： Coffee waste Hard carbon Phosphorus doping Sodium-ion batteries

《马丁·伊登》中杰克·伦敦的生态社会主义思想研究

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《马丁·伊登》中杰克·伦敦的生态社会主义思想研究

作者： madina 南京理工大学

学位级别：硕士

杰克·伦敦是19世纪末20世纪初美国文坛的杰出代表。他的一生虽然短暂,但他将自己的一生奉献于写作并活跃于各类社会活动之中。他是一名作家、一名新闻工作者、还是一位社交专家。作为杰克·伦敦的代表作之一,《马丁 ·伊登》讲述了一... 详细信息

杰克·伦敦是19世纪末20世纪初美国文坛的杰出代表。他的一生虽然短暂,但他将自己的一生奉献于写作并活跃于各类社会活动之中。他是一名作家、一名新闻工作者、还是一位社交专家。作为杰克·伦敦的代表作之一,《马丁 ·伊登》讲述了一位艺术家成长的心路历程。在小说中,伊登拒绝社会主义的观点,斥之为"奴隶中的道德",相反,他秉持着以人为本的观点,这也是生态社会主义的核心观念之一。这个观点结合资本主义和社会主义,与本质一致且注重于发展的本质。本篇论文拟借助大卫·佩珀的生态社会主义理论分析《马丁·伊登》中主人公的生活经历,以此来揭示杰克·伦敦的社会生态主义思想,以此警示当代社会。论文第一章主要探讨《马丁 ·伊登》中的以人为本思想。据大卫·佩珀所述,生态社会主义是一种以人为本的理论,在这部小说中,马丁是一个从工人阶级家庭中出身的水手,一个强壮且朴实的体力劳动者。然后,一位名叫罗丝的富家小姐看中了他真诚、坚毅的品质,两人坠入爱河,爱情创造了奇迹,马丁踏上了自学之路并且提升自己的思想高度。凭借自己坚强的性格和意志,马丁最终成为了一名蜚声文坛的作家。本章将从马丁·伊登的品质、他对罗丝的爱以及文中所涵盖的艺术方面研究,探讨文中蕴含的人文主义思想。论文第二章从讲述社会主义的好处入手,并讲述了其在经济中所起的作用。因作者不满于自身成功,伦敦意图将《马丁·伊登》中将主人公设计成一个出身贫穷但却满怀豪情和决心,不断追求教育和文学声誉的海员,以此来抨击主观和自我的观念。在小说中,马丁·伊登的政治观就是社会主义和资本主义观念的结合,这与佩珀的生态化的社会主义观念相吻合。在本章中,马丁·伊登的政治观点和对于贫穷的概念将被详细分析。论文第三章讨论人与自然的和谐。水具有一个普遍的象征意义,即纯洁和富饶,这样的观点在文中呈现出来。文中还提到在马丁淹没在海里,却在海里找到了不一样的平静。

关键词：生态社会主义人与自然社会主义资本主义马丁伊登贫穷海洋

Some Indicators of the Water Regime in Some Varieties Belonging to the Monarda didyma L. Genus in the Conditions of Tashkent (Uzbekistan)

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American Journal of Plant Sciences 2024年第5期15卷 374-386页

作者： Mamadalieva Vakhobjon Kizi madina Rakhimova Tashkhanim Physiology of Plant and Botany Department Biology Faculty National University of Uzbekistan named after Mirzo Ulugbek Tashkent Uzbekistan Institute of Botany of the Academy of Sciences of the Republic of Uzbekistan Tashkent Uzbekistan

In this article, the names of 3 varieties of Monarda didyma L., which are considered to be introduced species, some indicators of the water regime in the climatic conditions of Uzbekistan: the amount of water in the leaves, water deficit, water storage capacity were studied in spring and summer, and seasonal changes were determined. According to these indicators of the water regime, the studied varieties belong to the labile water regime, high green mass (centner), seed yield (how many grams), resistance to diseases and pests have been determined, which shows that it is promising for introduction in the conditions of our republic. Therefore, it is recommended to breed these varieties in the foothills and hilly regions of Uzbekistan, where the amount of precipitation is more than 400 - 500 mm.

关键词： Uzbekistan Tashkent Monarda didyma Bergama Jar-Ptitsa Cambridge Scarlet Water Regime Water Quantity Water Shortage Water Storage Capacity Labile

国际石油价格波动对哈萨克斯坦经济的影响研究

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国际石油价格波动对哈萨克斯坦经济的影响研究

作者： Tussupbayeva madina 上海外国语大学

学位级别：硕士

哈萨克斯坦作为中亚地区富含石油资源的国家,一方面面临着工业化成果巩固需要石油经济的支撑,另一方面基于宏观经济均衡的考量也需要反思石油经济单一经济结构的转型问题。无论是基于哪个视角,认真分析国际石油价格波动对哈萨克斯坦的... 详细信息

哈萨克斯坦作为中亚地区富含石油资源的国家,一方面面临着工业化成果巩固需要石油经济的支撑,另一方面基于宏观经济均衡的考量也需要反思石油经济单一经济结构的转型问题。无论是基于哪个视角,认真分析国际石油价格波动对哈萨克斯坦的经济影响是必须要面对的一个过程。对于学术界对“国际石油价格波动”对“哈萨克斯坦经济”影响的研究述评主要可以从“国际石油价格波动对宏观经济影响的传导机制”、“国际石油价格波动对宏观经济的影响”、“国际石油价格波动对哈萨克斯坦经济的主要影响”这样三个层面开展分析。基于一定的规范分析,本研究运用向量自回归模型(VAR模型)对1996-2016年阶段的国际石油价格波动对于哈萨克斯坦GDP总量、进出口总值、社会失业率等的主要影响进行了分析。研究结果表明:国际石油价格的波动对于哈萨克斯坦GDP的波动具有显著的正相关影响:国际石油价格的波动对于哈萨克斯坦的进出口贸易总值的波动具有显著的正相关影响。

关键词：国际石油价格哈萨克斯坦经济影响机制实证分析

CypA Regulates AIP4-Mediated M1 Ubiquitination of Influenza A Virus

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Virologica Sinica 2018年第5期33卷 440-448页

作者： madina Mahesutihan Weinan Zheng Liang Cui Yun Li Pengtao Jiao Wenxian Yang Wei Liu Jing Li Wenhui Fan Limin Yang Wenjun Liu Lei Sun CAS Key Laboratory of Pathogenic Microbiology and Immunology Institute of MicrobiologyChinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources and Laboratory of Animal Infectious Diseases College of Animal Sciences and Veterinary MedicineGuangxi UniversityNanning 530004China College of Life Sciences Henan Agricultural UniversityZhengzhou 450002China

Cyclophilin A (CypA) is a peptidyl-prolyl cis/trans isomerase that interacts with the matrix protein (M1) of influenza A virus (IAV) and restricts virus replication by regulating the ubiquitin–proteasome-mediated degradation of M1. However,the mechanism by which CypA regulates M1 ubiquitination remains unknown. In this study, we reported that E3 ubiquitin ligase AIP4 promoted K48-linked ubiquitination of M1 at K102 and K104, and accelerated ubiquitin–proteasome-mediated degradation of M1. The recombinant IAV with mutant M1 (K102 R/K104 R) could not be rescued, suggesting that the ubiquitination of M1 at K102/K104 was essential for IAV replication. Furthermore, CypA inhibited AIP4-mediated M1 ubiquitination by impairing the interaction between AIP4 and M1. More importantly, both the mutations of M1 (K102 R/K104 R) and CypA inhibited the nuclear export of M1, indicating that CypA regulates the cellular localization of M1 via inhibition of AIP4-mediated M1 ubiquitination at K102 and K104, which results in the reduced replication of ***, our findings reveal a novel ubiquitination-based mechanism by which CypA regulates the replication of IAV.

关键词： Influenza A virus (IAV) Ubiquitination Cyclophilin A (CypA) AIP4 M1