|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Curcumin induces differentiation of embryonic stem cells through possible modulation of nitric oxide-cyclic GMP pathway显示文摘Curcumin,an active ingredient of dietary spice used in curry,has been shown to exhibit anti-oxidant,anti-inflammatory and anti-proliferative properties.Using EB directed differentiation protocol of H-9 human em-bryonic stem(ES)cells;we evaluated the effect of cur-cumin(0-20μmol/L)in enhancing such differentiation.Our results using real time PCR,western blotting and immunostaining demonstrated that curcumin signifi-cantly increased the gene expression and protein levels of cardiac specific transcription factor NKx2.5,cardiac troponin I,myosin heavy chain,and endothelial nitric oxide synthase during ES cell differentiation.Further-more,an NO donor enhanced the curcumin-mediated induction of NKx2.5 and other cardiac specific proteins.Incubation of cells with curcumin led to a dose depend-ent increase in intracellular nitrite to the same extent as giving an authentic NO donor.Functional assay for second messenger(s)cyclic AMP(cAMP)and cyclic GMP(cGMP)revealed that continuous presence of cur-cumin in differentiated cells induced a decrease in the baseline levels of cAMP but it significantly elevated baseline contents of cGMP.Curcumin addition to a cell free assay significantly suppressed cAMP and cGMP degradation in the extracts while long term treatment of intact cells with curcumin increased the rates of cAMP and cGMP degradation suggesting that this might be due to direct suppression of some cyclic nucleo-tide-degrading enzyme(phosphodiesterase)by curcu-min.These studies demonstrate that polyphenol curcu-min may be involved in differentiation of ES cells partly due to manipulation of nitric oxide signaling. | Kalpana Mujoo Lubov ENikonoff Vladislav G Sharin Nathan SBryan Alexander YKots Ferid Murad | 2012 | Protein & Cell2012，3，7： | 5 |
| 2 | Selection of overburden surface mining method in West Virginia by analytical hierarchy process显示文摘The broad objective of this research was to improve current surface mining practices and reduce negative environmental impact of overburden removal in West Virginia(WV).The specific objectives were to(i)compare conventional surface mining method(drilling,blasting,digging,and loading)to a surface miner(SM)method,and(ii)apply the analytical hierarchy process(AHP)to help select the optimal mining method based on production,cost and environmental criteria.The design and the procedures used in this research involve five interrelated modules:(i)rock properties of overburden in WV,(ii)drilling and blasting,(iii)digging and loading,(iv)SM method,and(v)comparative analysis and selection of the optimal mining method by AHP.Results of this research indicate that application of SM method would yield higher cost of overburden removal than conventional mining methods in rocks with a high unconfined compressive strength and abrasivity.A significant advantage of SM method,where applicable,is the elimination of the negative environmental impacts associated with blasting. | Timothy A.Nolan Vladislav Kecojevic | 2014 | International Journal of Coal Science & Technology2014，1，3： | 5 |
| 3 | 微观结构对MOCVD制备氧化铬涂层氢渗透性能的影响显示文摘利用金属有机化学气相沉积(MOCVD)在316L不锈钢表面分别制备了(110)择优取向和随机取向的氧化铬涂层。利用扫描电子显微镜(SEM)和X射线衍射分析(XRD)分别对涂层的显微结构和相结构进行了表征。采用气相氘渗透方法对涂层的氢渗透性能进行测试。结果表明,择优取向的氧化铬涂层氢渗透率为P=4.58×10^-6exp(-112688/RT)(mol·m^-1·s^-1·Pa^0.5),而随机取向的氧化铬涂层氢渗透率为P=1.20×10^-5exp(-102057/RT)(mol·m^-1·s^-1·Pa^0.5)。在873,923,973 K时,择优取向涂层的氢渗透阻挡因子(PRF)分别为38.2,21.1和13.1,而随机取向涂层的PRF仅为2.6,1.9和1.5。对涂层显微结构的分析表明,择优取向的氧化铬涂层晶粒规则排列,易于得到结构致密的涂层;而随机取向的涂层,晶粒排列杂乱无序,易在涂层中产生通孔等缺陷,使得涂层的氢渗透性能出现大幅降低。 | 何迪 李帅 刘晓鹏 Stolyarov Vladimir Leonidovich Pavel Stabnikov Vladislav Krisyuk | 2018 | 稀有金属2018，42，4： | 3 |
| 4 | Natural and Eco-Friendly Materials for Triboelectric Energy Harvesting显示文摘Triboelectric nanogenerators(TENGs)are promising electric energy harvesting devices as they can produce renewable clean energy using mechanical excitations from the environment.Several designs of triboelectric energy harvesters relying on biocompatible and eco-friendly natural materials have been introduced in recent years.Their ability to provide customizable self-powering for a wide range of applications,including biomedical devices,pressure and chemical sensors,and battery charging appliances,has been demonstrated.This review summarizes major advances already achieved in the field of triboelectric energy harvesting using biocompatible and eco-friendly natural materials.A rigorous,comparative,and critical analysis of preparation and testing methods is also presented.Electric power up to 14 mW was already achieved for the dry leaf/polyvinylidene fluoride-based TENG devices.These findings highlight the potential of eco-friendly self-powering systems and demonstrate the unique properties of the plants to generate electric energy for multiple applications. | Vladislav Slabov Svitlana Kopyl Marco PSoares dos Santos Andrei L.Kholkin | 2020 | Nano-Micro Letters2020，12，3： | 3 |
| 5 | Operational method for determining bottom hole pressure in mechanized oil producing wells,based on the application of multivariate regression analysis显示文摘One of the major tasks of monitoring production well operations is to determine bottom-hole flowing pressure.The overwhelming majority of wells in the Perm Krai are serviced using borehole pumps,which makes it difficult to take direct bottom-hole flowing pressure measurements.The bottomhole filtration pressure(BHFP)in these wells is very often determined by recalculating the parameters measured at the well mouth(annulus pressure,dynamic fluid level depth).The recalculation is done by procedures based on analytically determining the characteristics of the gas-liquid mixture in the wellbore,which is very inconsistent to perform due to the mixture's complex behavior.This article proposes an essentially different approach to BHFP measurements that relies on the mathematical processing of the findings of more than 4000 parallel mouth and deep investigations of the oil production wells of a large oil-production region.As a result,multivariate mathematical models are elaborated that allow reliably determining the BHFP of oil-production wells in operation. | Inna N.Ponomareva Vladislav I.Galkin Dmitriy A.Martyushev | 2021 | Petroleum Research2021，6，4： | 2 |
| 6 | Histologic and Imaging Features of Mural Nodules in Mucinous Pancreatic Cysts显示文摘 | Ning Zhong Lizhi Zhang Naoki Takahashi Vladislav Shalmiyev Marcia Irene Canto Jonathan E. Clain John C. Deutsch John DeWitt Mohamad A. Eloubeidi Ferga C. Gleeson Michael J. Levy Shawn Mallery Massimo Raimondo Elizabeth Rajan Tyler Stevens Mark Topazian | 2012 | Clinical Gastroenterology and Hepatology2012，，2： | 2 |
| 7 | Evaluation of rope shovel operators in surface coal mining using a Multi-Attribute Decision-Making model显示文摘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 alternatives. 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 optimization. Multi-objective optimization was conducted with the overall goal of minimizing energy consumption 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 II. The research results presented here may be used by mining professionals to help evaluate the performance of rope shovel operators in surface mining. | Vukotic Ivana Kecojevic Vladislav | 2014 | International Journal of Mining Science and Technology2014，24，2： | 2 |
| 8 | Microfracture Characterization in Sandstone Reservoirs:A Case Study from the Upper Triassic of Syria's Euphrates Graben显示文摘The Euphrates Graben is located in eastern Syria.The Upper Triassic Mulussa F Formation sandstones serve as the primary reservoir intervals in the majority of the graben fields.The study’s findings were based on core studies:petrographic examination of thin sections,scanning electron microscope(SEM),imaging of backscatter scanning electron microscope(BSE),X-ray microprobe examinations,and carbon-oxygen stable isotope analysis of microfracture-filling cements.Three of the most common types of microfracture found in the investigated sandstones are intragranular or intracrystalline microfractures,grain boundary or grain-edge microfractures,and transgranular(crossing grains)microfractures.Sandstone microfractures that are open and free of secondary mineralization improve sandstone storage and permeability.However,microfractures that are cemented and filled with secondary mineralization reduce storage and permeability.Common siderite and pyrite cements were identified within the microfractures and the nearby sandstone matrix.Larger anhedral or euhedral siderites are thought to form during shallow burial diagenesis,whereas poikilotopic siderites are thought to form during deep burial diagenesis.Poikilotopic pyrite is believed to be a diagenetic cement,which is attributed to the reduction of iron oxides present in the sediments in the presence of hydrocarbons.Microfractures reflect tectonic,overpressure,and diagenetic origins.Microfractures of tectonic origin are associated with folding and thrust activities over the Euphrates Graben area,and they were formed at the beginning of the Upper Triassic with siderite and pyrite cement equilibration temperatures of approximately 100–105℃,and they continued forming from the middle to the end of the Upper Triassic with cement equilibration temperatures of approximately 90–100℃in conjunction with the first phase of the Euphrates Graben.Microfractures related to diagenetic and overpressure processes are tension microfractures and were formed in compression settings during the Upper Triassic. | Ibrahem Yousef Vladimir Morozov Vladislav Sudakov Ilyas Idrisov | 2022 | Journal of Earth Science2022，33，4： | 2 |
| 9 | A new species of Crocodile Newt, genus Tylototriton(Amphibia, Caudata, Salamandridae) from the mountains of Kachin State, northern Myanmar显示文摘We describe a new species of the genus Tylototriton from Ingyin Taung Mt.,Mohnyin Township,Kachin State,Myanmar,based on morphological and molecular evidence.The new species is assigned to the subgenus Tylototriton s.str.and is clearly distinct from all known congeners by the following characters:medium body size;thin,long tail,lacking lateral grooves;rough skin;truncate snout;wide,protruding supratemporal bony ridges on head,beginning at anterior corner of orbit;weak,almost indistinct sagittal ridge;long,thin limbs,broadly overlapping when adpressed along body;distinct,wide,non-segmented vertebral ridge;13 or 14 rib nodules;brown to darkbrown background coloration with dull orange-brown to yellowish-brown markings on labial regions,parotoids,rib nodules,whole limbs,vent,and ventral tail ridge.We also briefly discuss biogeography and species diversity of the genus Tylototriton in Myanmar. | Than Zaw Paw Lay Parinya Pawangkhanant Vladislav A.Gorin Nikolay A.Poyarkov,Jr | 2019 | Zoological Research2019，40，3： | 2 |
| 10 | An aggregate model of a grid-connected, large-scale, offshore wind farm for power stability investigations—importance of windmill mechanical system显示文摘 | Vladislav Akhmatov Hans Knudsen | 2002 | International Journal of Electrical Power and Energy Systems2002，，9： | 2 |
| 11 | Hepatocyte IKKβ/NF-κB Inhibits Tumor Promotion and Progression by Preventing Oxidative Stress-Driven STAT3 Activation显示文摘 | Guobin He Guann-Yi Yu Vladislav Temkin Hisanobu Ogata Christian Kuntzen Toshiharu Sakurai Wolfgang Sieghart Markus Peck-Radosavljevic Hyam L. Leffert Michael Karin | 2010 | Cancer Cell2010，，3： | 2 |
| 12 | Nonlinear optical absorption properties of InP nanowires and applications as a saturable absorber显示文摘Indium phosphide(InP)nanowires(NWs)have attracted significant attention due to their exotic properties that are different from the bulk counterparts,and have been widely used for light generation,amplification,detection,modulation,and switching,etc.Here,high-quality InP NWs were directly grown on a quartz substrate by the Au-nanoparticle assisted vapor-liquid-solid method.We thoroughly studied their nonlinear optical absorption properties at 1.06μm by the open-aperture Z-scan method.Interestingly,a transition phenomenon from satu-rable absorption(SA)to reverse saturable absorption(RSA)was observed with the increase of the incident laser intensity.In the analysis,we found that the effective nonlinear absorption cofficient(βeff-10^2 cm/MW)under the SA process was 3 orders of magnitude larger than that during the RSA processes.Furthermore,the SA proper-ties of InP NWs were experimentally verified by using them as a saturable absorber for a passively Q-switched Nd:YVO4 solid-state laser at 1.06μm,where the shortest pulse width of 462 ns and largest single pulse energy of 1.32μJ were obtained.Moreover,the ultrafast carrier relaxation dynamics were basically studied,and the intraband and inter-band ultrafast carrier relaxation times of 8.1 and 63.8 ps,respectively,were measured by a degenerate pump-probe method with the probe laser of 800 nm.These results well demonstrate the nonlinear optical absorption properties,which show the excellent light manipulating capabilities of InP NWs and pave a way for their applications in ultrafast nanophotonic devices. | JUNTING LIU HONGKUN NIE BINGZHENG YAN KEJIAN YANG HE YANG VLADISLAV KHAYRUDINOV HARRI LIPSANEN BAITAO ZHANG JINGLIANG HE | 2020 | Photonics Research2020，8，6： | 2 |
| 13 | Binuclear and Hexanuclear Ti(Ⅳ) Complexes Supported by [OOOO]^(4–)-type Ligand for Preparing Disentangled UHMWPE显示文摘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. | 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 | 2019 | Chinese Journal of Polymer Science2019，37，5： | 2 |
| 14 | 健康婴儿的闪光视觉诱发电位检查(英文)显示文摘目的:评估健康婴儿的视觉诱发电位(VEP)。方法:选取34例神经系统及眼部均健康的、年龄为2-10月龄的婴儿,运用闪光VEP检查并比较双眼P3波潜伏期与振幅。结果:所有婴儿的P3波数据均被记录。其平均潜伏期为138-140ms,振幅为7-9μV。潜伏期不稳定。结论:病理状态下,婴儿的潜伏期或振幅可能不会出现变异。而由于视路和皮层的髓鞘发育会使其出现变异,应注意类似于P3波的皮层波或其他波出现。因此,使用闪光VEP检测年龄为1-3月龄的婴儿是不准确的。 | Vladislav Voitenkov Andrey Klimkin Natalia Skripchenko | 2016 | 国际眼科杂志2016，16，4： | 2 |
| 15 | Computational Study of Graphene- and Few Layer Graphene-Metal Composites Induced by Radiation显示文摘 | Arkady M. Ilyin Renata R. Nemkaeva Vladislav V. Kudrjashov | 2013 | 材料科学与工程(中英文B版)2013，3，3： | 2 |
| 16 | 相干激发的氮分子离子中的光子存留现象显示文摘在量子光学中,量子相干性是光信息处理和光场调控的核心.碱金属蒸汽,虽然存在很多缺点,但是由于其具有易激发、偶极跃迁强和相干时间长的优点被广泛用于量子光学研究中.本文提出并实验上展示了800 nm飞秒激光相干激发的N_(2)^(+)中的光子存留现象.由于量子相干性的存在,存留在系统中的光子将在飞秒激光离开后的几十皮秒时间内持续再辐射.由于再辐射的光子较弱,难以直接测量.本文提出通过延时注入一束1580 nm的飞秒激光读取存留光子的方案.其核心思想是借助延时注入的激光与存留光子的双光子吸收,进一步激发N_(2)^(+)产生强的329.3 nm辐射.研究者也表明了N_(2)^(+)激发态布居对于信号读取的重要作用.这一新发现揭示了N_(2)^(+)中量子相干调控的物理机制,打开了在远程大气中进行光学信息存储的前景.此外,以强场电离产生的分子离子为量子系统,有利于进一步探索光与物质相互作用的基本过程. | 姚金平 王珞珈 陈锦明 万悦芯 张志豪 张方波 乔玲玲 于书鹏 付博涛 赵增秀 吴成印 Vladislav VYakovlev 袁璐琦 陈险峰 程亚 | 2021 | Science Bulletin2021，66，15： | 2 |
| 17 | The roles of Galectin-3 in autoimmunity and tumor progression显示文摘 | Gordana Radosavljevic Vladislav Volarevic Ivan Jovanovic Marija Milovanovic Nada Pejnovic Nebojsa Arsenijevic Daniel Hsu Miodrag Lukic | 2012 | Immunologic Research2012，，1： | 2 |
| 18 | Relevance of miR-21 and miR-143 expression in tissue samples of colorectal carcinoma and its liver metastases显示文摘 | Vlastimil Kulda Martin Pesta Ondrej Topolcan Vaclav Liska Vladislav Treska Alan Sutnar Karel Rupert Marie Ludvikova Vaclav Babuska Lubos Holubec Radim Cerny | 2010 | Cancer Genetics and Cytogenetics2010，，： | 2 |
| 19 | Green fluorescent protein as a vital marker for non-destructive detection of transformation events in transgenic plants显示文摘 | Marek H Slavom R Vladislav C | 2006 | Plant Cell Tissue and Organ Culture2006，86，3： | 1 |
| 20 | Numeri- cal analysis of debond propagation in the single fibre fragmentation test 显示文摘 | Enrique G Vladislav M Federico P Janis V | 2009 | Composites Science and Tech nology2009，691，： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员