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Open Journal of geology 2013年第7期3卷 404-409页

作者： Boris Dyachkov Natalya Zimanovskaya indira Mataibayeva D. Serikbayev East Kazakhstan State Technical University Ust-Kamenogorsk City Kazakhstan

In the article the features of the formation and metallogeny of the geological structures of great Altai (Rudny Altai, Kalba-Narym, Western Kalba and Jarma-Saur) which are included into the system of the Central Asian mobile belt are considered. The characteristic of the main types of rare metal minefields of the Kalba-Narymsky belt genetically connected with the Perm granitoid magmatism of the post-conflict orogenny stage of activization is given. The rhythmical and pulsation model of pegmatitovy ore formation in the conditions of the half-closed magmatic system, reflecting the phasic development of mineral complexes from graphic and oligoclase-microcline (barren) to microcline-albite and albite-spodumene ore (Ta, Nb, Be, Li, Sn, etc.) is developed. On the basis of the revealed criteria of ore formation recommendations about the direction of the further researches are made.

关键词： Rare Metals Pegmatite Albitite-greisen Metasomatits Kalba-Narym Belt East Kazakhstan

The Role of Clouds in global Radiation Changes Measured in Israel during the Last Sixty Years

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American Journal of Climate Change 2019年第1期8卷 61-76页

作者： indira Paudel Shabtai Cohen gerald Stanhill Department of Environmental Physics and Irrigation Institute of Soil Water and Environmental Sciences Rishon Le Zion Israel Department of Forestry and Natural Resources Purdue University IN USA

An analysis of global radiation measurements and fractional cloud cover observations made in the Israel Meteorological Service’s network of climate stations demonstrated a significant decrease in the transmittance of solar radiation through the atmosphere during the last 60 years. The major cause was the reduced transparency of clouds. Under completely overcast skies with complete cloud cover transmission in the industrialized central coastal region decreased from 0.41 in the mid-20th century to 0.21 in the first decade of the 21st century. Under cloudless skies the reduction in the transmission of global radiation was less, from 0.79 to 0.71, and not statistically significant. Similar but somewhat smaller changes were observed in the less industrialized central hill region. Multi-linear analysis showed that since 1970, 61% of the measured decline in global radiation was attributable to changes in fractional cloud cover but only 2% to the marked increase in local fuel combustion;there was no statistically significant interaction between the two parameters.

关键词： Cloud Transmission Fractional Cloud Cover Dimming and Brightening Direct and Indirect Aerosol Effects Fossil Fuel Combustion

Carbon Dots-Doped Electrospun Fibers for Simultaneous Metal Ion Detection and Adsorption of Dyes

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Advanced Fiber Materials 2020年第6期2卷 302-313页

作者： Mário César A.de Oliveira Elisângela g.de L.Oliveira indira C.B.Pires Iuri C.M.Candido Nikifor Rakov Helinando P.de Oliveira Yutao Xing glauco S.Maciel Institute of Materials Science Universidade Federal do Vale do São FranciscoJuazeiroBA 48920-310Brazil Instituto de Física Universidade Federal FluminenseNiteróiRJ 24210-346Brazil

The required treatment and monitoring of contaminants in wastewater reinforces the development of low-cost adsorbents/chemosensors,introducing advantages relative to the detection/removal of toxic metals and ***,it is reported a two-step process of fabrication of fluorescent carbon dots via the hydrothermal treatment of amino acids for the following encapsulation in electrospun *** prominent anionic behavior of electrospun fibers of Eudragit L100 was explored for adsorption of cationic dyes(methylene blue and crystal violet)-with the prevailing electrostatic interaction of parts being favored by the formation of monolayers on the surface of *** the other hand,the controlled release of carbon dots(CDs)from fibers to the reactor can be explored for a second application:the nitrogen ligands from released glycine-based carbon dots can be explored to indicate the presence of metal ions in aqueous *** experiment resulted in a quenching in the fluorescence of the CDs in order of 90%in the emission of particles in the response of the presence of Fe^(3+) ions,characterizing a promising perspective for this experimental system.

关键词： Fluorescence Ferric ion detection Electrospinning Carbon nanostructure

Theoretical Analysis of Mass Transfer with Chemical Reaction Using Absorption of Carbon Dioxide into Phenyl glycidyl Ether Solution

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Applied Mathematics 2012年第10期3卷 1179-1186页

作者： Muthukaruppan Subramaniam indira Krishnaperumal Rajendran Lakshmanan Department of Mathematics The Madura College Madurai-625011 Tamil Nadu India District Institute of Education and Training Pudukkottai Tamil Nadu India

Theoretical analysis corresponding to the diffusion and reaction kinetics in a chemical reaction between carbon dioxide and phenyl glycidyl ether solution is presented. Analytical expressions pertaining to the concentration of carbon dioxide (CO2), phenyl glycidyl ether solution (PgE) and flux are obtained in terms of reaction rate constants. In this paper, a powerful analytical method, called the Adomian decomposition method (ADM) is used to obtain approximate analytical solutions for nonlinear differential equations. Furthermore, in this work the numerical simulation of the problem is also reported using Scilab/Matlab program. An agreement between analytical and numerical results is noted.

关键词： Carbon Dioxide Phenyl glycidyl Ether Solution Nonlinear Differential Equations Adomian Decomposition Method Boundary Value Problems

俄罗斯的经济战略：吉尔吉斯斯坦北约军事基地“玛纳斯”的案例研究

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俄罗斯的经济战略：吉尔吉斯斯坦北约军事基地“玛纳斯”的案例研...

作者： Kydyralieva indira 吉林大学

学位级别：硕士

自1991年独立以来,吉尔吉斯斯坦开始寻求本国在世界政治结构中的位置。就此而言,吉尔吉斯斯坦的重要任务在于其多元化的对外关系。对一个年轻的领土面积不大的国家而言,最事宜的就是多方位的对外政策。吉尔吉斯斯坦的多方位对外政策在... 详细信息

自1991年独立以来,吉尔吉斯斯坦开始寻求本国在世界政治结构中的位置。就此而言,吉尔吉斯斯坦的重要任务在于其多元化的对外关系。对一个年轻的领土面积不大的国家而言,最事宜的就是多方位的对外政策。吉尔吉斯斯坦的多方位对外政策在于它与所有大国合作但没有建立起一个清晰的外交战略并由此维护自己的国家利益。在其独立后的25年内,吉尔吉斯斯坦的外交政策已经经历了实质性的转变,这种转变不仅受其国家利益转变的影响,而且受到与大国交往方式转变的影响。在这个基础上,从国家复杂的相互依赖角度来考察吉尔吉斯斯坦的外交政策是较为恰当的,在本文的案例中作者考察其与美国和俄罗斯的关系。在本文的简介中,我将简要介绍一下吉尔吉斯斯坦重要的政治历史事件,国内的发展和政治事件导致了其对外政策的转变,并且说明本文研究的意义、方法、文献综述与理论框架。第一章,本文分析和比较了由国内因素决定的吉尔吉斯斯坦不同总统执政时期的政治理论。第一任总统是阿斯卡·阿卡耶夫,他在吉尔吉斯斯坦与西方的合作中扮演了重要的角色。吉尔吉斯斯坦通过与美国的合作,不仅获得了财政支持,而且美国为其政治体系的民主化和经济自由化提供了很大的帮助。吉尔吉斯斯坦同时与地区大国俄罗斯建立了良好的关系。在他的任期内,吉尔吉斯斯坦是苏联解体后建立的国家中第一个加入国际组织的。他第一个提出建立“小国家需要大朋友”的多方位对外政策。他的继任者库尔曼别克·巴基耶夫也对两强实行同样的外交政策,但是他开始将国家作为均衡俄罗斯和美国的工具。新的临时政府宣布坚持多方位的外交政策,现任总统阿尔马兹别克·阿坦巴耶夫在与地区大国俄罗斯的交往中也采用了多方位的外交政策。第二章,本文分析了吉尔吉斯斯坦针对西方超级大国美国和地区大国俄罗斯的外交政策,以及美俄两国在中亚的竞赛如何影响吉尔吉斯斯坦的外交政策。吉尔吉斯斯坦的外交转型是从“9.11”恐怖袭击后美国宣布打击恐怖主义开始的。因为靠近阿富汗,吉尔吉斯斯坦在地缘政治上显得更为重要,因此北约决定建立军事空军基地。“玛纳斯”空军基地和非官方的格西空军基地是美国在“玛纳斯国际机场”的军事部署,靠近吉尔吉斯斯坦的首都,主要由美国空中力量控制。这个基地建立于2001年12月,目的是为了支持美国在阿富汗打击恐怖主义的军事行动。这个基地同时也集结了其它国家的驻阿富汗维和部队,也是美国军事人员进出阿富汗的中转站。美国在此地区的军事基地让俄罗斯感受到威胁。俄罗斯建议根据SCTO协议开放俄罗斯在吉尔吉斯斯坦的军事基地,比什凯克同意了俄罗斯这一建议。这个在坎特的军事基地,在离吉尔吉斯斯坦首都比什凯克20公里远的一个小镇,在集体安全条约组织的支持下建立并快速的发展。由此俄罗斯开始它的政治战略,制衡美国在此地区的影响,并且准备逐渐将美国挤出“影响区”。吉尔吉斯斯坦政府与美国建立了密切的关系,同时与俄罗斯保持了良好的关系。这样的联系帮助了吉尔吉斯斯坦既能够依靠俄罗斯,又不至于太过于依赖它,由此维护了吉尔吉斯斯坦的主权。这也对吉尔吉斯斯坦的经济发展也十分有利,与美国的良好关系为吉尔吉斯斯坦的经济带来了新的投资机会,空军基地也成为吉尔吉斯斯坦政府重要的税收来源。吉尔吉斯斯坦的政治诉求,即在美俄两国的安全经济关系网络寻求平衡,使其成为一个特别的研究案例。吉尔吉斯斯坦作为一个小国,在国内有着两个相互竞争大国的军事基地,并且相距20公里。许多学者疑问,吉尔吉斯斯坦能维持这样模糊不清的外交政策多长时间。2010年公民投票后,吉尔吉斯斯坦成为了代议制共和政体国家。通过和平的选举手段,总统阿尔马兹别克·阿坦巴耶夫上台。在第三章中,作者说明了吉尔吉斯斯坦政府在确认其外部和地区伙伴—俄罗斯中做出了历史突破,加入了欧亚关税联盟,而且吉尔吉斯斯坦议会投票通过在2014年关闭美国转接中心。这意味着吉尔吉斯斯坦放弃了实行了多年的多方位外交政策。为什么吉尔吉斯斯坦选择放弃2001-2012年实行的多方位外交政策,在2013年转而决定与俄罗斯结盟?与美国相比,俄罗斯能给吉尔吉斯斯坦带来什么?吉尔吉斯斯坦新领导人做出这一决定的政治、经济和社会原因是什么?官方对关闭美国军事基地的解释是,吉尔吉斯斯坦政府对本国安全的考虑,为了防止吉尔吉斯斯坦被美国的敌国攻击。但许多分析家和政治家都认为这是俄罗斯通过经济手段对吉尔吉斯斯坦政府决策造成的压力和影响的结果。俄罗斯的经济战略开始于巴基耶夫当政时期,试图关闭玛纳斯军事基地的第一次尝试。在2009年巴基耶夫出访俄罗斯会见俄罗斯总统德米特里·梅德韦杰夫。在这次总统会谈后的记者会中俄罗斯总统宣布对吉尔吉斯斯坦给予3亿美元的外交援助,并在未来对康巴尔水疗院的电站建设进行投资。吉尔吉斯斯坦领导人宣布关闭美国军事基地。俄罗斯给予的援助和关闭美军事基地这两者之间很明显有所联系。但是在巴基耶夫与美国政府的会谈后,租金从1700

关键词：吉尔吉斯斯坦的外交政策北约的"Manas"空军基地经济的治国大计俄罗斯联邦吉尔吉斯斯坦共和国美利坚合众国遗弃不结盟外交政策金融援助

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埋地天然气管线的地震损伤与易损性评估

埋地天然气管线的地震损伤与易损性评估

作者： Yergaliyeva indira（丽娃）哈尔滨工业大学

学位级别：硕士

生命线是人类生活和城市必需的基础设施体系，它通常用于输送污水、燃料、能源、信息、石油和天然气等城市居民的必需品。因此，避免震区的管道系统出现严重破坏对各个国家的防震减灾决策均非常重要。鉴于此，本文针对天然气管网系统开... 详细信息

生命线是人类生活和城市必需的基础设施体系，它通常用于输送污水、燃料、能源、信息、石油和天然气等城市居民的必需品。因此，避免震区的管道系统出现严重破坏对各个国家的防震减灾决策均非常重要。鉴于此，本文针对天然气管网系统开展了地震破坏和易损性评估。本文针对阿拉木图地区开展详细的研究和数据收集。采用ABAQUS软件从静力和动力两个方面研究地管道在地震作用下的反应，在分析过程中进行了土壤和管道相互作用的三维模型的简化，考虑了管道-土相互作用，考虑了影响静态和地震荷载作用下连续管道的因素，包括：载荷材料、直径、边界条件、土壤特性等因素。本文用位于哈萨克斯坦的天然气管道在8级地震作用下的反应分析对本文所建立的天然气管网有限元模型进行了验证。进一步运用地震易损性理论，给出了天然气管网的地震易损性曲线，并对管网的概率地震安全进行了评估。研究发现：对于天然气管道，最可能的损伤将发生在带铰链边界条件的粘土中，铰链边界条件取决于其他类型的土壤。

关键词：埋地天然气管道地震损伤地震易损性地震波的传播

Ameliorative effect of alkaloid extract of Cyclea peltata(Poir.) Hook.f.& ***(ACP) on APAP/CC1_4 induced liver toxicity in Wistar rats and in vitro free radical scavenging property

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Asian Pacific Journal of Tropical Biomedicine 2014年第2期4卷 143-151页

作者： Varghese Jancy Shine Panikamparambil gopalakrishnan Latha Somasckharan Nair Rajam Suja gangadharan indira Anuja gopan Raj Sreedharan Nair Rajasekharan Division of Ethnomedicine and Ethnopharmacology Jawaharlal Nehru Tropical Botanic Garden and Research Institute(JNTBGRI)TrivandrumKerala 695562India Deparment of Chemistry Sree Narayana CollegePunalurKollam- 691305KeralaIndia

Objective:To evaluate the hepatoprotective and antioxidant properties of alkaloid extract of Cyclea peltata(***) against paracetamol/carbon tetra chloride induced liver damage in Wistar ***:In viro paracetamol/carbon tetrachloride induced liver damage in Wistar rats,in vitro free radical scavenging studies,HPTLC estimation of letrandrine and direct analysis in real timemass spectrometry of alkaloid extract of *** were used for the ***:The results showed that pretreatment with alkaloid extract of *** caused significant reduction of serum glutamate pyruvate transaminase,serum glutamate oxaloacetate transaminase,serum alkaline phosphatase,serum cholesterol,liver malondialdehyde *** reduced glutathione,catalase,superoxide dismutase levels in liver were increased with alkaloid extract of *** *** results were almost comparable to silymarin and normal *** studies also substantiated the biochemical *** in vitro hydroxyl,superoxide and DPPH scavenging study of alkaloid extract of C. peltata showed significant free radical scavenging ***:The hepatoprotective property of alkaloid extract of *** against paracetamol/carbon tetrachloride may be due the synergistic action of alkaloids especially tetrandrine,fangchinoline through free radical scavenging and thus preventing oxidative stress.

关键词： Tetrandrine glutathione Catalase Superoxide dismutase Hydroxyl Malondialdehyde

The first laboratory-confirmed neonatal Mpox infection in Sri Lanka

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Infectious Medicine

Infectious Medicine 2023年第3期2卷 237-240页

作者： Thulani Thivanshika Pattiyakumbura Denagama Vitharanage Rishan geeth Ruwan Jinadari Maduwanthi Munasinghe gamage Don Diluk Chathuranga Janaki indira Abeynayake Department of Virology Medical Research InstituteNo-527Dr Danister De Silva MawathaColombo 08Colombo 00800Sri Lanka

In 2022-2023,a global outbreak of Mpox was reported especially in nonendemic *** report the first laboratory-confirmed neonatal case of Mpox infection complicated by bronchopneumonia in Sri Lanka.

关键词： Mpox Neonatal case of Mpox infection Sri Lanka global outbreak 2022-2023

Effect of Cyclodextrin Complexation on the Aqueous Solubility of Diazepam and Nitrazepam:Phase-Solubility Analysis,Thermodynamic Properties

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American Journal of Analytical Chemistry 2012年第12期3卷 811-819页

作者： Jasmina Hadziabdic Alisa Elezovic Ognjenka Rahic indira Mujezin Department of Pharmaceutical Technology Faculty of PharmacyUniversity of SarajevoSarajevoBosnia and Herzegovina

The solubility enhancement of diazepam and nitrazepam in water was analyzed depending on temperature and amount of α-cyclodextrin ( α-CD), β-cyclodextrin (β-CD) and 2-hydroxypropyl-β-cyclodextrin (2-HP-β-CD). The interactions of drug-cyclodextrin in solution were investigated by the phase-solubility analysis. Diazepam (nitrazepam) content in aqueous complexation medium was analyzed UV spectrophotometrically. Classical solubility data were used to derive apparent stability constants (K1:1) which were used to derive thermodynamic parameters for the diazepam (nitrazepam)-cyclodextrin complexes. Since all phase solubility plots were of AL–types, and calculated Slopes after linear regression analysis were found to be less than 1, it could be assumed that stoichiometry of the formed binary systems was 1:1. According to the calculated K1:1 values, the stability of the complexes of diazepam and nitrazepam with a-CD, β-CD and 2-HP-β-CD varies as follows: 2-HP-β-CD > β-CD > β-CD. The a-CD has higher affinity for dissolving nitrazepam compared to diazepam. While all parameters lead to an improvement in solubility, the largest effect was obtained for guest-host complexation with 2-HP-β-CD. The solubility of diazepam and nitrazepam in water increased 93.02 times and 64.23 times, respectively, in the presence of 40% (w/w) 2-HP-β-CD, at 25°C. Solubility data for diazepam and nitrazepam in aqueous 2-HP-b-CD were used to derive thermodynamic parameters, Δg° at 298 K = –14.43 kJ·mol–1, ΔH° = 0.79 kJ·mol–1, ΔS° at 298 K = 51.17 J·mol–1·K–1 and Δg° at 298 K = –13.43 kJ·mol–1, ΔH° = 2.38 kJ·mol–1, ΔS° at 298 K = 53.01 J·mol–1·K–1, respectively. Formation of inclusion complexes substantially increases the water solubility of diazepam and nitrazepam. Diazepam and nitrazepam dissolution thermodynamics in aqueous 2-HP-β-CD were characterized by spontaneous and endothermic dissolution and hydrophobic interactions.

关键词： Diazepam Nitrazepam Phase-Solubility Analysis Thermodynamic Parameters