检索结果-南通市图书馆

Features of the long-term transformation of the Krasnodar reservoir,near the mouth of the Kuban River,Russia

Journal of Geographical Sciences 2021年第12期31卷 1895-1904页

作者： POGORELOV Anatoly LAGUTA Andrey KISELEV Evgeny LIPILIN dmitry Kuban State University Krasnodar 350040Russia Aerogematica LLC Krasnodar 350063Russia Kuban State Agrarian University Named after I.T.Trubilin Krasnodar 350044Russia Tuapse Branch of the Russian State Hydrometeorological University Krasnodar RegionTuapse 352800Russia

The article considers the long-term(1941-2018)transformation of the Krasnodar valley reservoir,the largest in the North *** main functions of the Krasnodar reservoir are irrigation of rice systems and flood protection of land in the Krasnodar reservoir region and the Republic of *** to topographic maps,Landsat satellite images(1974-2018)and field observations(2016-2018),four stages of transformation of the floodplain reservoir are *** selected stages are characterized by both natural causes(the transformation of the filling deltas into the extended deltas,etc.)and man-made causes(runoff diversions in the delta areas,etc.).The key factor of transformation is the formation of deltas of rivers flowing into the *** of the selected stages,against the background of a gradual reduction in the area and volume of the reservoir,is characterized by the peculiarities of the formation of river deltas with the formation of genetically homogeneous sections of delta *** the period of operation of the reservoir,the delta of the main Kuban River moved up to 32.4 km and took away an area of 35.4 km^(2) of the *** the formation of the deltas of the Kuban and Belaya rivers,a bridge was formed on the Krasnodar *** evolution of the delta regions led to the division of the reservoir into two autonomous *** total area of the delta regions was 85.9 km^(2) by 2018,i.e.,21% of the initial area of the *** transformation of the Krasnodar reservoir leads to a decrease in its regulated volume and gradual degradation.

关键词： Krasnodar reservoir sedimentation siltation transformation delta formation Landsat

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Fast Revealing of Mode Ranks of Tensor in Canonical Form

引用

Numerical Mathematics(Theory,Methods and Applications) 2009年第4期2卷 439-444页

作者： dmitry V.Savostyanov Institute of Numerical Mathematics Russian Academy of Sciences

Considering the problem of mode ranks revealing of d-dimensional array (tensor) given in canonical form,we propose fast algorithm based on cross approximation of Gram matrices of unfoldings.

关键词： Multidimensional array canonical decomposition Tucker approximation fast recompression.

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Towards high-performance tubular-type protonic ceramic electrolysis cells with all-Ni-based functional electrodes

引用

Journal of Energy Chemistry 2020年第1期29卷 65-74,I0003页

作者： Artem Tarutin Anna Kasyanova Julia Lyagaeva Gennady Vdovin dmitry Medvedev Laboratory of Electrochemical Devices Based on Solid Oxide Proton Electrolytes Institute of High Temperature ElectrochemistryYekaterinburg 620137Russia Ural Federal University Yekaterinburg 620002Russia

Protonic ceramic electrolysis cells(PCECs),which permit high-temperature electrolysis of water,exhibit various advantages over conventional solid oxide electrolysis cells(SOECs),including cost-effectiveness and the potential to operate at low-/intermediate-temperature ranges with high performance and *** many efforts have been made in recent years to improve the electrochemical characteristics of PCECs,certain challenges involved in scaling them up remain *** the present work,we present a twin approach of combining the tape-calendering method with all-Ni-based functional electrodes with the aim of fabricating a tubular-designed PCEC having an enlarged electrode area(4.6 cm^2).This cell,based on a 25μm-thick BaCe0.5Zr0.3Dy0.2O3-δ proton-conducting electrolyte,a nickelbased cermet and a Pr1.95Ba0.05NiO4+δ oxygen electrode,demonstrates a high hydrogen production rate(19 m L min^-1 at 600℃),which surpasses the majority of results reported for traditional button-or planar-type *** findings increase the scope for scaling up solid oxide electrochemical cells and maintaining their operability at reducing temperatures.

关键词： Steam electrolysis Hydrogen production PCECs Proton-conducting electrolytes Ln2NiO4

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Current approaches to the management of patients with cirrhotic ascites

引用

World Journal of Gastroenterology 2019年第28期25卷 3738-3752页

作者： dmitry Victorovich Garbuzenko Nikolay Olegovich Arefyev Department of Faculty Surgery South Ural State Medical University Chelyabinsk 454092 Russia Department of Pathological Anatomy and Forensic Medicine South Ural State Medical University Chelyabinsk 454092 Russia

This review describes current approaches to the management of patients with cirrhotic ascites in relation to the severity of its clinical manifestations. The PubMed database, the Google Scholar retrieval system, the Cochrane Database of Systematic Reviews, and the reference lists from related articles were used to search for relevant publications. Articles corresponding to the aim of the review were selected for 1991-2018 using the keywords:“liver cirrhosis,”“portal hypertension,”“ascites,”“pathogenesis,”“diagnostics,” and “treatment.” Uncomplicated and refractory ascites in patients with cirrhosis were the inclusion criteria. The literature analysis has shown that despite the achievements of modern hepatology, the presence of ascites is associated with poor prognosis and high mortality. The key to successful management of patients with ascites may be the stratification of the risk of an adverse outcome and personalized therapy. Pathogenetically based approach to the choice of pharmacotherapy and optimization of minimally invasive methods of treatment may improve the quality of life and increase the survival rate of this category of patients.

关键词： Liver cirrhosis Ascites Diuretics Large volume paracentesis Peritoneovenous shunting Transjugular intrahepatic portosystemic shunting

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Therapeutic possibilities of gut microbiota modulation in acute decompensation of liver cirrhosis

引用

World Journal of Hepatology 2023年第4期15卷 525-537页

作者： dmitry Victorovich Garbuzenko Department of Faculty Surgery South Ural State Medical UniversityChelyabinsk 454080Russia

The formation of liver cirrhosis(LC) is an unfavorable event in the natural history of chronic liver diseases and with the development of portal hypertension and/or impaired liver function can cause a fatal outcome. Decompensation of LC is considered the most important stratification variable for the risk of death. It is currently postulated that decompensation of LC occurs through an acute(including acute-on-chronic liver failure) and non-acute pathway. Acute decompensation of LC is accompanied by the development of life-threatening complications, characterized by an unfavorable prognosis and high *** in understanding the underlying molecular mechanisms has led to the search for new interventions, drugs, and biological substances that can affect key links in the pathogenesis of acute decompensation in LC, for example the impaired gut-liver axis and associated systemic inflammation. Given that particular alterations in the composition and function of gut microbiota play a crucial role here, the study of the therapeutic possibilities of its modulation has emerged as one of the top concerns in modern hepatology. This review summarized the investigations that describe the theoretical foundations and therapeutic potential of gut microbiota modulation in acute decompensation of LC. Despite the encouraging preliminary data, the majority of the suggested strategies have only been tested in animal models or in preliminary clinical trials;additional multicenter randomized controlled trials must demonstrate their efficacy in larger patient populations.

关键词： Liver cirrhosis Acute decompensation Pathogenesis Therapy Gut microbiota Modulation

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Methods for recording the time profile of single ultrashort pulses of electron beams and discharge currents in real-time mode

引用

High Voltage 2016年第1期1卷 43-51页

作者： Victor F.Tarasenko dmitry V.Rybka Institute of High Current Electronics Siberian Branch Russian Academy of SciencesTomsk 634055Russia

The collectors for measuring the time profile of a current pulse of the runaway electron beam that are generatedunder atmospheric pressure are described. An analysis of changes in pulse shape depending on the bandwidth of theregistration path with a temporal resolution of up to 20 ps was performed. It is shown that the electron beam detectedbehind small-diameter diaphragms has a complex structure, which depends on the parameters of the gas diode. Thereis a design of the current shunts with a temporal resolution of up to 100 ps in this study. Measurement techniques ofvoltage pulses with subnanosecond and nanosecond duration are briefly described.

关键词： ultrashort pulse recording

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Verification of Hypertorus Communication Grids by Infinite Petri Nets and Process Algebra

引用

IEEE/CAA Journal of Automatica Sinica 2019年第3期6卷 733-742页

作者： dmitry A.Zaitsev Tatiana R.Shmeleva Jan Friso Groote IEEE the Vistula University the A.S. Popov Odessa National Academy of Telecommunications the Eindhoven University of Technology

A model of a hypertorus communication grid has been constructed in the form of an infinite Petri net. A grid cell represents either a packet switching device or a bioplast cell. A parametric expression is obtained to allow a finite specification of an infinite Petri net. To prove properties of an ideal communication protocol, we derive an infinite Diophantine system of equations from it, which is subsequently solved. Then we present the programs htgen and ht-mcrl2-gen, developed in the C language, which generate Petri net and process algebra models of a hypertorus with a given number of dimensions and grid size. These are the inputs for the respective modeling tools Tina and mCRL2, which provide model visualization, step simulation, state space generation and reduction, and structural analysis techniques. Benchmarks to compare the two approaches are obtained. An ad-hoc induction-like technique on invariants,obtained for a series of generated models, allows the calculation of a solution of the Diophantine system in a parametric *** is proven that the basic solutions of the infinite system have been found and that the infinite Petri net is bounded and conservative. Some remarks regarding liveness and liveness enforcing techniques are also presented.

关键词： Computing grid conservativeness deadlock hypertorus infinite Petri nets process algebra systems biology

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

FUS/TLS forms cytoplasmic aggregates,inhibits cell growth and interacts with TDP-43 in a yeast model of amyotrophic lateral sclerosis

引用

Protein & Cell 2011年第3期2卷 223-236页

作者： dmitry Kryndushkin Reed B.Wickner Frank Shewmaker Laboratory of Biochemistry and Genetics National Institute of Diabetes Digestive and Kidney DiseasesNational Institutes of HealthBethesdaMD 20892USA Department of Pharmacology Uniformed Services University of the Health SciencesBethesdaMD 20814USA

Amyotrophic lateral sclerosis(ALS)is a fatal disease characterized by the premature loss of motor *** the underlying cellular mechanisms of neuron degeneration are unknown,the cytoplasmic aggregation of several proteins is associated with sporadic and familial forms of the *** wild-type and mutant forms of the RNA-binding proteins FUS and TDP-43 accumulate in cytoplasmic inclusions in the neurons of ALS *** is not known if these so-called proteinopathies are due to a loss of function or a gain of toxicity resulting from the formation of cytoplasmic *** we present a model of FUS toxicity using the yeast Saccharomyces cerevisiae in which toxicity is associated with greater expression and accumulation of FUS in cytoplasmic *** find that FUS and TDP-43 have a high propensity for co-aggregation,unlike the aggregation patterns of several other aggregation-prone ***,the biophysical properties of FUS aggregates in yeast are distinctly different from many amyloidogenic proteins,suggesting they are not composed of amyloid.

关键词： amyotrophic lateral sclerosis(ALS) fused in sarcoma(FUS) TLS proteinopathy yeast

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Combination of Instrumented Nanoindentation and Scanning Probe Microscopy for Adequate Mechanical Surface Testing

引用

Journal of Materials Science & Technology 2009年第1期25卷 63-68页

作者： Enrico Tam Mikhail Petrzhik dmitry Shtansky Marie-Paule Delplancke-Ogletree Université Libre de Bruxelles Moscow State Institute of Steel and Alloys

The elastic indentation modulus and hardness of standard bulk materials and advanced thin films were determined by using the nanoindentation technique followed by the Oliver- Pharr post-treatment. After measurements with different loading/unloading schemes on chemically polished bulk titanium a substantial decrease of both modulus and hardness vs an increasing loading time was found. Then, hard nanostructured TiBN and TiCrBN thin films deposited by magnetron sputtering （using multiphase targets） on substrates of high roughness （sintered hard metal） and low roughness （silicon） were studied. Experimental modulus and hardness characterized by using two different nanoindenter tools were within the limits of standard deviation. However, a strong effect of roughness on the spread of the experimental values was observed and it was found that hardness and elastic indentation modulus obeyed a Gaussian distribution. The experimental data were discussed together with scanning probe microscopy （SPM） images of typical imprints taken after the nanoindentation tests and the local topographyls strong correlation with the results of nanoindentation was described.

关键词： Nanoindentation Thin films Coatings Scanning probe microscopy

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Leucine-rich repeat-containing G protein-coupled receptor 5 marks different cancer stem cell compartments in human Caco-2 and LoVo colon cancer lines

引用

World Journal of Gastroenterology 2021年第15期27卷 1578-1594页

作者： Samah Abdulaali Alharbi dmitry A Ovchinnikov Ernst Wolvetang Physiology Department College of MedicineUmm Al-Qura UniversityMakkah 24231Saudi Arabia Department of Stem Cell Engineering Group Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandBrisbane 4072QLDAustralia Australian Institute for Bioengineering and Nanotechnology The University of QueenslandBrisbane 4072QLDAustralia

BACKGROUND Colon cancer cell lines are widely used for research and for the screening of drugs that specifically target the stem cell compartment of colon *** was reported that colon cancer carcinoma specimens contain a subset of leucine-rich repeatcontaining G protein-coupled receptor 5(LGR5)-expressing stem cells,these socalled“tumour-initiating”cells,reminiscent in their properties of the normal intestinal stem cells(ISCs),may explain the apparent heterogeneity of colon cancer cell ***,colon cancer is initiated by aberrant Wnt signaling in ISCs known to express high levels of ***,in vivo reports demonstrate the clonal expansion of intestinal adenomas from a single LGR5-expressing *** To investigate whether colon cancer cell lines contain cancer stem cells and to characterize these putative cancer stem *** A portable fluorescent reporter construct based on a conserved fragment of the LGR5 promoter was used to isolate the cell compartments expressing different levels of LGR5 in two widely used colon cancer cell lines(Caco-2 and LoVo).These cells were then characterized according to their proliferation capacity,gene expression signatures of ISC markers,and their tumorigenic properties in vivo and in *** The data revealed that the LGR5 reporter can be used to identify and isolate a classical intestinal crypt stem cell-like population from the Caco-2,but not from the LoVo,cell lines,in which the cancer stem cell population is more akin to B lymphoma Moloney murine leukemia virus insertion region 1 homolog(+4 crypt)stem *** sub-population within Caco-2 cells exhibits an intestinal cancer stem cell gene expression signature and can both self-renew and generate differentiated LGR5 negative *** data also show that cells expressing high levels of LGR5/enhanced yellow fluorescent protein(EYFP)from this cell line exhibit tumorigenic-like properties in vivo and in *** contrast,cell compartments of LoVo th

关键词： Colorectal cancer Colon cancer cell lines Intestinal stem cell Cancer stem cell Leucine-rich repeat-containing G protein-coupled receptor 5 Heterogenicity

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：