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Journal of Water Resource and Protection 2010年第4期

作者： vasil Simeonov Pavlina Simeonova Stefan Tsakovski vasil Lovchinov

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饲料作物改良的生物学技术

草原与草坪 1986年第2期 25-28页

作者： Indra K.vasil 杨福囤丁文广

引言在减数分裂、杂交授粉或受精作用的同时,通过遗传基因的重新组合可以使自然界的植物得到改良和进化。由于严格的自然障碍使杂交受精作用只能在亲缘关系最近的种间进行,所以这种基因重组也就受到了严格的限制。因此,重要而很有用的... 详细信息

引言在减数分裂、杂交授粉或受精作用的同时,通过遗传基因的重新组合可以使自然界的植物得到改良和进化。由于严格的自然障碍使杂交受精作用只能在亲缘关系最近的种间进行,所以这种基因重组也就受到了严格的限制。因此,重要而很有用的基因一般从一个种不可能转移到另一个种上。从农民开

关键词：原生质体愈伤组织创伤组织胚胎发生作物改良

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禾本科植物离体再生的研究进展

世界科学 1991年第2期 29-31页

作者： P.Ozias-Akins I.K.vasil 张蓓

通过培养细胞再生植株是植物生物工程的一个重要组成部分.禾本科植物的细胞和原生质体培养再生植株的发展,以及基因的转化,给遗传基因调控和改进粮食植物提供了机会.

关键词：禾本科植物细胞基因调控 DNA 愈伤组织创伤组织再生植株原生质体融合细胞融合

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一种新型的范德普尔同步振荡器

电讯技术 1984年第5期 73-82页

作者： vasil UZVNOGLU 陈正良尤婉贞马德荣

1927年以来,在文献中对范德普尔(Van dcr pol)振荡器已作过讨论和分析。在这些论述中,把高度非线性网络线性化成具有典型传输特性的放大器。本文介绍一种新型范德普尔振荡器(SO)的实验结果。这种振荡器是工作在非线性状态完成线性信号处... 详细信息

1927年以来,在文献中对范德普尔(Van dcr pol)振荡器已作过讨论和分析。在这些论述中,把高度非线性网络线性化成具有典型传输特性的放大器。本文介绍一种新型范德普尔振荡器(SO)的实验结果。这种振荡器是工作在非线性状态完成线性信号处理,如象同步和跟踪。这类振荡器具有选择性高(优于60dB/倍频程),同步带内相位线性和由于输入信号降低而能保持输出信噪比不变的自适性。在信噪比低到-10dB能实现同步,并能获得30dB的信噪比改善和几百KHz的同步带宽。

关键词：锁相环同步振荡器载波恢复网络

The Cost of Financial Stability in Times of Crisis： The Case of Bulgaria

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Journal of Sociology Study 2013年第8期3卷 573-579页

作者： vasil Stefanov Petkov University of National and World Economy Bulgaria

The global economic turmoil from 2008 inflicted permanent damage to EU economies and its impact is still strong. To address the problems and cope with the crisis, governments were forced to conduct anti‐cyclical policies in different forms. In most countries, this resulted in a widening budget deficit and mounting government debt. Then, a raft of measures to deal with fiscal instability followed, which, however, restricted growth and had high economic and social costs. Bulgaria was among the EU Member States that turned fiscal discipline into a priority and was one of the few to manage, at least seemingly, to achieve satisfying results. The benefits that the country reaped are indisputable but the price it had to pay was too high. Many private sector companies faced insolvency, unemployment hit record highs, and important structural reforms were delayed.

关键词：保加利亚不稳定欧盟成员国金融全球经济社会成本私营公司永久性

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陀思妥耶夫斯基世界观中美的问题

北方工业大学学报 2023年第2期35卷 102-111页

作者：瓦西里·瓦西里耶维奇·津科夫斯基张百春(译) 北京师范大学哲学学院北京100080

在陀思妥耶夫斯基的世界观中,美的问题占有重要的地位。他对美的思考尽管不够系统,但不乏真知灼见,如“美拯救世界”的论断,这是其美学思想的顶峰。陀思妥耶夫斯基美学思想里包含一个矛盾:一方面,陀思妥耶夫斯基坚信“美拯救世界”(有... 详细信息

在陀思妥耶夫斯基的世界观中,美的问题占有重要的地位。他对美的思考尽管不够系统,但不乏真知灼见,如“美拯救世界”的论断,这是其美学思想的顶峰。陀思妥耶夫斯基美学思想里包含一个矛盾:一方面,陀思妥耶夫斯基坚信“美拯救世界”(有美学乌托邦成分);另一方面,他也意识到美的悲剧性,现实世界里的美自身需要拯救,因为美遭到人性中恶的破坏。美的悲剧和自然主义导致陀思妥耶夫斯基早年的美学乌托邦的破灭。

关键词：陀思妥耶夫斯基美乌托邦恶拯救自然主义

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Binuclear and Hexanuclear Ti(Ⅳ) Complexes Supported by [OOOO]^(4–)-type Ligand for Preparing Disentangled UHMWPE

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Chinese Journal of Polymer Science 2019年第5期37卷 471-477页

作者： Vladislav A.Tuskaev Svetlana Ch.Gagieva Dmitry A.Kurmaev Viktor G.vasil'ev Nikolay A.Kolosov Sergey V.Zubkevich Elena S.Mikhaylik Evgenii K.Golubev Galina G.Nikiforova Pavel A.Zhizhko Olga A.Serenko Boris M.Bulychev Department of Chemistry M.V.Lomonosov Moscow State University A.N.Nesmeyanov Institute of Organoelement Compounds Russian Academy of Sciences Enikolopov Institute of Synthetic Polymer Materials Russian Academy of Sciences

Binuclear and hexanuclear titanium complexes stabilized by tetradentate [OOOO]^(4–)-type ligand were active in ethylene polymerization in the presence of Et2 AlCl/Bu2 Mg binary co-catalyst, giving high molecular weight polyethylene. The binuclear complex showed significantly higher catalytic activity and thermal stability in comparison to mononuclear analogue. Ultra high molecular weight polyethylene(UHMWPE) samples were processed by a solid-state uniaxial deformation into high-strength(up to 2.5 GPa) and highmodulus(over 100 GPa) oriented film tapes, which indirectly indicates a low degree of entanglements between the macromolecular chains.

关键词： Binuclear catalysts Titanium Ethylene Ziegler-Natta polymerization UHMWPE

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Study of Caspian Goby Neogobius sp. Karyotype Flexibility from Several Biotops

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Journal of Life Sciences 2014年第5期8卷 442-446页

作者： Aithazha Bigaliev Saidina Kobegenova Viktor vasil'ev Elena vasil'eva Aiman Imentai Ashan Shametov Department of Molecular Biology and Genetics Al-Farabi Kazakh National University Almaty BOX 050040 Kazakhstan IPEE (Institute of Ecology and Evolution) Russian Academy of Sciences Russia Zoological Museum Moscow State University Moscow Russia

The karyotype of Caspian goby was studied, which has been identified as Caspian bighead goby - Neogobius gorlap before. The results of cytogenetic analyses have shown that the diploid set of goby varies from 38 to 40 chromosomes, which is different from bighead goby (2n = 43-46). We assumed that Caspian goby has independence as a species.

关键词：染色体核型虾虎鱼里海细胞遗传学分析 SP 活性二倍体物种

Intemational Competitiveness of Export-oriented Industries in Bulgaria

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Chinese Business Review 2014年第1期13卷 1-18页

作者： Antoaneta Vassileva vasil Petkov Paskal Zhelev University of National and World Economy Sofia Bulgaria

Synthesis,structure and magnetic properties of Sm_(1.2)Ho_(0.8)Fe_(17)Hx(X=0;4.4)

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Journal of Rare Earths 2021年第9期39卷 1089-1094页

作者： S.V.Veselova M.A.Paukov I.S.Tereshina V.N.Verbetsky K.V.Zakharov D.I.Gorbunov A.N.VasiPev Faculty of Physics M.V.Lomonosov Moscow State UniversityMoscow 119991Russia Nuclear Fuel Cycle Department.Centrum Vyzkumu Rez Hlavni 130Husinec-Rez 25068.Czech Republic Immanuel Kant Baltic Federal University Kaliningrad 236004Russia Faculty of Mathematics and Physics Charles UniversityPrague 12116Czech Republic Hochfeld-Magnetlabor Dresden(HLD-EMFL) Helmholtz-Zentrum Dresden-RossendorfDresden 07328Germany f National Research South Ural State UniversityChelyabinsk 454080Russia

Intermetallic compounds based on rare-earth metals and iron are by far the most promising materials for permanent mag *** this work,the multicomponent compound Sm_(1.2)Ho_(0.8)Fe_(17)was prepared by in duction *** hydride Sm_(1.2)Ho_(0.8)Fe_(17)H_(4.4)with a high hydrogen content was obtained by direct hydrogenation of the intermetallic *** rhombohedral Th2Zn17-type of structure(space group R3^(-)m)is inhere nt to parent compound and hydride as *** effect of hydrogenation on the magneric properties of Sm_(1.2)Ho_(0.8)Fe_(17)was *** temperature of the hydride Sm_(1.2)Ho_(0.8)-Fe_(17)H_(4.4)is higher than that of parent compound by△Tc=138 *** hydrogen embedded in Sm_(1.2)Ho_(0.8)Fe_(17)crystal lattice in creases the saturation magnetization(σs)at T=300 K,but does not significantly affect%at T=4.2 *** ferrimagnetic structure is retained in magnetic fields up to 58 T in the parent compound,while,in the hydride,there is a spin-reorie ntatio n phase transitio n observed at 55 *** is found that the parameter of the in tersublattice exchange interaction decreases significantly in the hydride Sm_(1.2)Ho_(0.8)Fe_(17)Hg_(4.4)(and in the nitride Sm_(1.2)Ho_(0.8)Fe_(17)N_(2.4))which is associated with boosting of the unit-cell volume and distances between magnetic ions.

关键词： Intermetallic compound Hydride Crystal structure Magnetization Magnetic phase transition Exchange interaction

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