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Investigation of Cavitation in NaCl Solutions in a Sonochemical Reactor Using the Foil Test Method

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Fluid Dynamics & Materials Processing 2024年第5期20卷 1093-1102页

作者： Michael Kuchinskiy Tatyana Lyubimova Konstantin Rybkin anastasiia Sadovnikova Vasiliy Galishevskiy Institute of Continuous Media Mechanics UB RAS Perm614013Russia Faculty of Physics Perm State UniversityPerm614068Russia

Ultrasonic baths and sonochemical reactors are widely used in industrial applications dealing with surface cleaningand chemical synthesis. The processes of erosion, cleaning and structuring of the surface can be typically controlledby changing relevant influential parameters. In particular, in this work, we experimentally investigate theeffect of NaCl concentration (0–5.5 mol/L) on the erosion of an aluminum foil under ultrasonic exposure at afrequency of 28 kHz. Special attention is paid to the determination of cavitation zones and their visualizationusing heat maps. It is found that at low NaCl concentration (0.3 mol/L), the foil destruction rate is higher thanin distilled water. At higher concentrations of salt, cavitation takes place mainly in the upper part of the container.

关键词： Ultrasound NaCl solution foil test cavitation activity

A bird's-eye overview of molecular mechanisms regulating feed intake in chickens—with mammalian comparisons

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Animal Nutrition 2024年第2期17卷 61-74页

作者： anastasiia R.Volyanskaya Ilya R.Akberdin Mikhail A.Kulyashov Ivan S.Yevshin Michael N.Romanov Elena I.Shagimardanova Oleg A.Gusev Fedor A.Kolpakov Department of Natural Sciences Novosibirsk State University Biosoft.Ru Ltd. Sirius University of Science and Technology School of Biosciences University of Kent L.K.Ernst Federal Research Centre for Animal Husbandry Regulatory Genomics Research Center Institute of Fundamental Medicine and BiologyKazan Federal University Life Improvement By Future Technologies (LIFT) Center Intractable Disease Research Center Juntendo University

In recent decades, a lot of research has been conducted to explore poultry feeding behavior. However, up to now, the processes behind poultry feeding behavior remain poorly understood. The review generalizes modern expertise about the hormonal regulation of feeding behavior in chickens, focusing on signaling pathways mediated by insulin, leptin, and ghrelin and regulatory pathways with a cross-reference to mammals. This overview also summarizes state-of-the-art research devoted to hypothalamic neuropeptides that control feed intake and are prime candidates for predictors of feeding *** analysis of the signaling pathways that mediate the feed intake regulation allowed us to conclude that there are major differences in the processes by which hormones influence specific neuropeptides and their contrasting roles in feed intake control between two vertebrate clades.

关键词： Chicken Feed intake Hypothalamus Neuropeptide Signaling pathway Hormone

Determining the Source Time Function Using the Modified Matrix Method

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Journal of Earth Science 2016年第6期27卷 1054-1059页

作者： anastasiia Pavlova Carpatian Branch of Subbotin Institute of Geophysics of NAS of Ukraine Lviv 79060 Ukraine

The modified matrix method of construction of wavefield on the free surface of an anisotropic medium is proposed. The earthquake source represented by a randomly oriented force or a seismic moment tensor is placed on an arbitrary boundary of a layered anisotropic medium. The theory of the matrix propagator in a homogeneous anisotropic medium by introducing a ＂wave propagator＂ is presented. It is shown that the matrix propagator can be represented by a ＂wave propagator＂ in each layer for anisotropic layered medium. The matrix propagator P（z, z0=0） acts on the free surface of the layered medium and generates stress-displacement vector at depth z. The displacement field on the free surface of an anisotropic medium is obtained from the received system of equations considering the radiation condition and that the free surface is stressless. The new method determining source time function in anisotropic medium for three different types of seismic source is validated.

关键词： matrix method seismic tensor synthetic seismograms.

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Large-scale genome-wide SNP analysis reveals the rugged(and ragged)landscape of global ancestry,phylogeny,and demographic history in chicken breeds

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2024年第4期25卷 324-340页

作者： Natalia V.DEMENTIEVA Yuri S.SHCHERBAKOV Olga I.STANISHEVSKAYA Anatoly B.VAKHRAMEEV Tatiana A.LARKINA Artem P.DYSIN Olga A.NIKOLAEVA Anna E.RYABOVA anastasiia I.AZOVTSEVA Olga V.MITROFANOVA Grigoriy K.PEGLIVANYAN Natalia R.REINBACH Darren K.GRIFFIN Michael N.ROMANOV Russian Research Institute of Farm Animal Genetics and Breeding-Branch of the L.K.Ernst Federal Research Centre for Animal Husbandry.Pushkin St.Petersburg196601Russia School of Biosciences University of KentCanterburyCT27NJUK L.K.Ernst Federal Research Center for Animal Husbandry DubrovitsyPodolskMoscow Oblast142132Russia

The worldwide chicken gene pool encompasses a remarkable,but shrinking,number of divergently selected breeds of diverse *** study was a large-scale genome-wide analysis of the landscape of the complex molecular architecture,genetic variability,and detailed structure among 49 *** populations represent a significant sample of the world's chicken breeds from Europe(Russia,Czech Republic,France,Spain,UK,etc.),Asia(China),North America(USA),and Oceania(Australia).Based on the results of breed genotyping using the Illumina 60K single nucleotide polymorphism(SNP)chip,a bioinformatic analysis was carried *** included the calculation of heterozygosity/homozygosity statistics,inbreeding coefficients,and effective population *** also included assessment of linkage disequilibrium and construction of phylogenetic *** multidimensional scaling,principal component analysis,and ADMIXTURE-assisted global ancestry analysis,we explored the genetic structure of populations and subpopulations in each *** overall 49-population phylogeny analysis was also performed,and a refined evolutionary model of chicken breed formation was proposed,which included egg,meat,dual-purpose types,and ambiguous *** a large-scale survey of genetic resources in poultry farming using modern genomic methods is of great interest both from the viewpoint of a general understanding of the genetics of the domestic chicken and for the further development of genomic technologies and approaches in poultry *** general,whole genome SNP genotyping of promising chicken breeds from the worldwide gene pool will promote the further development of modern genomic science as applied to poultry.

关键词： Chicken genome diversity Single nucleotide polymorphism(SNP)analysis Gene pool Global ancestry Phylogeny Demographic history

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A case of vitiligo after COVID-19 vaccination: a possible role of thymic dysfunction

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2023年第12期24卷 1141-1150页

作者： Denis KUZNETSOV Oleg KALYUZHIN Andrey MIRONOV Valery NESCHISLIAEV anastasiia KUZNETSOVA G.N.Gabrichevsky Scientific and Research Institute of Epidemiology and Microbiology Moscow 125212Russia I.M.Sechenov First Moscow State Medical University Moscow 119991Russia Perm State Pharmaceutical Academy Perm 614990Russia

During the coronavirus disease 2019(COVID-19)pandemic,vaccines help control the spread of *** date,47 vaccines have been approved,with another 227 candidates in various stages of *** the short period of time since the beginning of their use,evidence has begun to emerge of complications following vaccination in the form of the development or exacerbation of a number of pathological conditions(Block et al.,2022;Haseeb et al.,2022).For example,a population-based study in France identified 1612 cases of myocarditis and 1613 cases of pericarditis requiring hospital treatment within five months of vaccination(le Vu et al.,2022).

关键词： vaccination vaccines

Understanding the Contribution of Innovation to Growth:The Case of China

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Understanding the Contribution of Innovation to Growth:The C...

作者： anastasiia Kovaleva 华东师范大学

学位级别：硕士

2011年以来,中国国内生产总值（GDP）增速不断放缓,为了保持经济持续发展,中国就必须培育有利于增长和提高生产率的创新驱动力。众所周知,中国政府正在制定新的科技进步目标,致力于使创新成为经济增长的主要动力。然而,现在说创新战略... 详细信息

2011年以来,中国国内生产总值（GDP）增速不断放缓,为了保持经济持续发展,中国就必须培育有利于增长和提高生产率的创新驱动力。众所周知,中国政府正在制定新的科技进步目标,致力于使创新成为经济增长的主要动力。然而,现在说创新战略已经产生了令人满意的结果还为时过早。本文旨在确定中国创新发展的制约因素。通过对中国经济增长历程、创新的历史作用、对当今中国经济创新程度的评估以及对关键创新政策领域的深入阐述,本文对上述制约因素进行了研究,并回答了为什么创新的增强不会导致中国经济更高的增长率。研究发现,贸易和外商直接投资的限制、过于依赖实验发展并以牺牲基础研究为代价、倾向于限制国内市场竞争、缺乏自下而上的企业规划、缺乏具有分析思维能力的熟练工人、不够成熟的知识产权环境对充分发挥中国的创新潜力、实现创新驱动的经济增长构成了重大障碍。

关键词：中国经济增长创新

Development of E-commerce in China and in Russia

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Development of E-commerce in China and in Russia

作者： anastasiia Kameneva 华东师范大学

学位级别：硕士

中俄合作源远流长,两国不仅是邻国,也是战略和经济伙伴。考虑到制裁局势和与欧洲的不稳定关系,中国对俄罗斯是非常重要的伙伴。俄罗斯和中国在不同层面的项目中进行合作,例如金砖国家,亚太经合组织,上海合作组织等。中国是俄罗斯最大的... 详细信息

中俄合作源远流长,两国不仅是邻国,也是战略和经济伙伴。考虑到制裁局势和与欧洲的不稳定关系,中国对俄罗斯是非常重要的伙伴。俄罗斯和中国在不同层面的项目中进行合作,例如金砖国家,亚太经合组织,上海合作组织等。中国是俄罗斯最大的贸易伙伴。中俄两国是两国关系发展历史悠久的国家。俄罗斯和中国在很多领域进行合作,但他们在政治合作方面大多关系密切,两国领导人每年都有很多会议。两个国家是战略合作伙伴,这个对电子商务合作创造了一个明显的平台。各国之间电子商务的快速发展证明了它们的政治接近程度。这种合作的另一个原因是来自欧洲和美国的反俄罗斯制裁。由于欧洲和美国对俄罗斯实施制裁,其目的是破坏俄罗斯经济的稳定,俄罗斯开始寻求其他发展方式。在俄罗斯的一边,欧洲有制裁,不想合作,另一方面是中国,这个国家愿意与俄罗斯合作和投资。Aliexpress于2010年进入俄罗斯市场,但仅在2013年(首次实施制裁的年份)越来越多人开始使用它,俄罗斯客户选择中国网店作为永久购物平台。电子商务在两国都发展得非常快,跨境电子商务在其中发挥着巨大作用。在物流方面,各国就交货条款达成协议,建立仓库,处理支付系统。阿里巴巴已经在俄罗斯成立了第一家总部,并推出了***。电子商务增加了俄罗斯在国际市场的参与。在线购物和销售比传统贸易,文件交换,交易,汇款更快更容易。电子商务允许公司进入不同的市场。只需几个工人就可以在上线创建一家小公司,而不需要租用办公室,电子商务减少了小公司的扩张,甚至危机对他们的影响也更小。电子商务为普通人开辟了新的视野,他们可以在家里购物,而且通常商品和服务在网上都比较便宜。进行互联网交易的公司通常更灵活,能够更快地对市场中的不同变化做出反应,更像是使用新的创新项目。由于大量的互联网用户,俄罗斯电子商务市场潜力巨大。欧洲的制裁帮俄罗斯与中国深化电子商务合作,是起到了有益的作用。中国商品更便宜,这是一个好兆头,因为俄罗斯消费者对价格很敏感,中国商店有更多的选择。但是电子商务也存在缺点,例如不同地区和国家(俄罗斯未发展得很好)的基础设施发展水平不同,电子商务参与者的识别,不信任就好像没有任何实际情况一样双方之间的联系(优先支付货到付款),互联网仍然是一个不安全的贸易场所。俄罗斯电子商务参与者试图保护内部电子贸易的尝试。为了更好的合作,两国需要促进多渠道发展,包括促进知名跨境电子商务平台的增长和发展,增加销售,配套和物流能力,按顺序发展跨境电子商务服务业为跨境电子商务企业提供存储,物流,快递,海关和金融服务。两个国家需要改善运输和物流系统,扩大运输途径(航空货运,混合客货运输和邮政运输),为俄罗斯的跨境企业和海外仓库区建设边境仓库区。在服务领域,俄罗斯和中国需要更多地建设跨境电子商务服务平台,以便为企业创建快速的物流渠道,建设海外服务平台,升级国内服务平台,鼓励银行和支付机构为跨境电子商务业务开辟服务,以满足国内外企业和个人的支付需求。俄罗斯经济目前处于停滞状态。尽管如此,该国的电子商务市场仍在不断扩大和发展。非专业人士肯定俄罗斯电子商务市场远未被国内和国际参与者挖掘和获得重大机遇,但是需要付出巨大的努力和谨慎,因为在俄罗斯建立成功的在线业务需要时间,能力了解文化特征和市场以及提供本地化体验的能力。在中国和俄罗斯的情况下,电子商务是一种政治经济现象,不仅是由于当今世界的全球化,也是由于中俄关系和合作的发展,电子商务是其深厚合作的证据。并有理由加深它。俄罗斯和中国在电子商务领域的合作面临很多问题,为了解决这些问题,俄罗斯需要制定法规和行动来控制这个领域,俄罗斯也需要发展其基础设施和物流系统,中国可以投资它在俄罗斯建造仓库,以便更方便,更快捷地交付货物。论文的结构如下。第一章介绍电子商务及其历史背景。第二章研究在俄罗斯和中国的电子商务发展。第三章考察中俄在电子商务领域的合作情况,包括这一合作的历史背景和概况、电子商务体系结构、中俄电子商务发展概况,展示了两国所面临的益处和不足。

关键词：电子商务俄罗斯中国合作网上贸易跨境电子商务

Global photometric analysis of Galactic HII regions

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Research in Astronomy and Astrophysics 2018年第8期18卷 21-28页

作者： anastasiia Topchieva Dmitri Wiebe Maria S.Kirsanova Institute of Astronomy Russian Academy of SciencesMoscow 119017Russia Ural Federal University 19 Mira Str.EkaterinburgRussia

Total infrared fluxes are estimated for 99 HII regions around massive stars. The following wavebands have been used for the analysis： 8 and 24 μm, based on data from the Spitzer Space Telescope （IRAC and MIPS, respectively）; 70, 160, 250, 350 and 500 μm, based on data from the Herschel Space Observatory （PACS and SPIRE）. The estimated fluxes are used to evaluate the polycyclic aromatic hy- drocarbon （PAH） mass fraction （qPAH） and the intensity of ultraviolet emission in the studied objects. It is shown that the PAH mass fraction, qPAH, is much lower in these objects than the average Galactic value, implying effective destruction of aromatic particles in HII regions. Estimated radiation field inten- sities （U） are close to those derived for extragalactic HII complexes. Color indices [F24/F8], [F70/F24], [F160/F24] and [F160/F70] are compared to criteria proposed to distinguish between regions of ionized hydrogen and planetary nebulae. Also, we relate our results to analogous color indices for extragalactic complexes of ionized hydrogen.

关键词： ISM bubbles - (ISM) HII regions - ISM lines and bands

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Development of E-commerce in the PRC at the Perspective of International Trade under the Belt and Road Initiative

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Development of E-commerce in the PRC at the Perspective of I...

作者： anastasiia Dolnikova 上海财经大学

学位级别：硕士

To date,the Internet has become an integral part of our lives,influencing not only our private lives but also world trade and economic ***,ecommerce with the development of the Internet and the availability of devices,which can be used to complete online transactions,has now became a rapidly developing and progressive form of trade *** 2008,the development of e-commerce has been unprecedented in *** the framework of this study,the process of formation of e-commerce as a new form of trade and economic relations is considered,the role of e-commerce in China's foreign trade activity is analyzed,and a study of the geographical distribution of e-commerce in China is conducted on the example of trade and economic relations with partner countries within the framework of the *** study aims to determine whether the infrastructure development of the countries participating in the One Belt,One Road initiative,namely the development of Internet technology,telecommunications and transport logistics,has an impact on the development of China's cross-border e-commerce *** the study,we get some valuable insights to promote the development of e-commercial economy,to foster the growth of international trade.

关键词： e-commerce Internet foreign trade cross-border trade China Belt and Road Initiative(BRI)