检索结果-南通市图书馆

On complete convergence in Marcinkiewicz-Zygmund type SLLN for random variables

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Applied Mathematics(A Journal of Chinese Universities) 2021年第3期36卷 342-353页

作者： anna Kuczmaszewska YAN Ji-gao Department of Applied Mathematics Lublin University of TechnologyNadbystrzycka 38 D20-618 LublinPoland School of Mathematical Sciences Soochow UniversitySuzhou 215006China

We consider a generalization of Baum-Katz theorem for random variables satisfying some cover ***,we get the results for many dependent structures,such as END,ϱ^(*)mixing,ϱ^(-)mixing andφ-mixing,etc.

关键词： complete convergence Marcinkiewicz-Zygmund type SLLN weakly mean bounded

Biological and clinical aspects of HPV-related cancers

在线全文

学校读者我要写书评

暂无评论

Cancer Biology & Medicine 2020年第4期17卷 864-878页

作者： Klaudia anna Szymonowicz Junjie Chen Department of Experimental Radiation Oncology The University of Texas MD Anderson Cancer CenterHoustonTX 77030USA

Cancer-related diseases represent the second overall cause of death *** papilloma virus(HPV)is an infectious agent which is mainly sexually transmitted and may lead to HPV-associated cancers in both men and *** all cervical cancers are HPV-associated,however,an increasing number of head and neck cancers(HNCs),especially oropharyngeal cancer,can be linked to HPV ***,anogenital cancers,including vaginal,vulvar,penial,and anal cancers,represent a subset of HPVrelated *** testing and prevention of cervical cancer have significantly improved over past decades,anogenital cancers remain more difficult to *** clinical trials including patients with HPV-related cancers focus on finding proper testing for all HPV-associated cancers as well as improve the currently applied *** HPV viral oncoproteins,E6 and E7,lead to degradation of,respectively,p53 and pRb resulting in entering the S phase without G1 *** high-risk HPV viral oncogenes alter numerous cellular processes,including DNA repair,angiogenesis,and/or apoptosis,which eventually result in ***,a comprehensive analysis of gene expression and alteration among a panel of DNA double strand breaks(DSB)repair genes in HPV-negative and HPV-positive HNC cancers reveals differences pointing to HPV-dependent modifications of DNA repair processes in these *** this review,we discuss the current knowledge regarding HPV-related cancers,current screening,and treatment options as well as DNA damage response-related biological aspects of the HPV infection and clinical trials.

关键词： Human papillomavirus(HPV) cervical cancer HNC DNA repair clinical trials cancer statistics

在线全文

学校读者我要写书评

暂无评论

地中海的宁静 EKONIKA莫斯科旗舰店

室内设计与装修 2025年第1期 58-63页

作者：无 anna Lvovskaia Boris Lvovskiy Fedor Goreglyad Maria Romanova Vasilii Portnyagin Nikita Subbotin(摄影) 秋落(编译) DA bureau 不详 Landon Studio

EKONIKA是俄罗斯最大的鞋类连锁店之一,已上市30多年。在过去的5年里,该品牌发生了重大变化,变得更加现代化,面向更年轻的受众。这些变化需要改变连锁店的视觉形象,这也是设计师工作的难点。作为EKONIKA鞋类和配饰连锁店品牌重塑的一部... 详细信息

EKONIKA是俄罗斯最大的鞋类连锁店之一,已上市30多年。在过去的5年里,该品牌发生了重大变化,变得更加现代化,面向更年轻的受众。这些变化需要改变连锁店的视觉形象,这也是设计师工作的难点。作为EKONIKA鞋类和配饰连锁店品牌重塑的一部分,设计师为该品牌的展厅开发了全新的视觉解决方案。

关键词：品牌重塑连锁店视觉形象地中海鞋类旗舰店俄罗斯 EK

WNT/β-catenin signaling in hepatocellular carcinoma:The aberrant activation,pathogenic roles,and therapeutic opportunities

在线全文

学校读者我要写书评

暂无评论

Genes & Diseases 2024年第2期11卷 727-746页

作者： anna Gajos-Michniewicz Malgorzata Czyz Department of Molecular Biology of Cancer Medical University of LodzLodz 92-215Poland

Hepatocellular carcinoma(HCC)is a liver cancer,highly heterogeneous both at the histopathological and molecular *** arises from hepatocytes as the result of the accumulation of numerous genomic alterations in various signaling pathways,including canonical WNT/β-catenin,AKT/mTOR,MAPK pathways as well as signaling associated with telomere maintenance,p53/cell cycle regulation,epigenetic modifiers,and oxidative *** role of WNT/β-catenin signaling in liver homeostasis and regeneration is well established,whereas in development and progression of HCC is extensively ***,we review recent advances in our understanding of how WNT/β-catenin signaling facilitates the HCC development,acquisition of stemness features,metastasis,and resistance to *** outline genetic and epigenetic alterations that lead to activated WNT/β-catenin signaling in *** discuss the pivotal roles of CTNNB1 mutations,aberrantly expressed non-coding RNAs and complexity of crosstalk between WNT/β-catenin signaling and other signaling pathways as challenging or advantageous aspects of therapy development and molecular stratification of HCC patients for treatment.

关键词： Cancer stem cells CTNNB1 mutations Liver cancer Non-coding RNA Tumor heterogeneity

Mold Filling and Prevention of Gas Entrapment in High-pressure Die-casting

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Materials Science & Technology 2008年第1期24卷 139-140页

作者： Itsuo Ohnaka Akira sugiyama Takashi Ikeda Hideyuki Yasuda Department of Entrepreneur Engineering/ieSolution Osaka Sangyo University Daito-shi 574-8530Japan Trois Corp. Japan Osaka University Japan

This paper presents some results of direct observation of mold filling in a specially designed die-casting by X-ray diffraction, including comparison with numerical simulation. Based on such work the authors discuss h... 详细信息

关键词： Direct observation Mold filling High-pressure die-casting Computer simulation Gas entrapment

Key changes across valley floors in mountain areas affected by different levels of human impact: a case study of the Ochotnica river catchment in the Polish Carpathians

在线全文

学校读者我要写书评

暂无评论

Journal of Mountain Science 2024年第11期21卷 3567-3583页

作者： Agata GOŁĄB anna MICHNO Doctoral School of Exact and Natural Sciences Jagiellonian UniversityProf.St.Łojasiewicza St 11Cracow 30348Poland Faculty of Geography and Geology Jagiellonian UniveristyGronostajowa St 3Cracow 30387Poland

The goal of this paper was to present knowledge on changes in the morphodynamic structure of the Ochotnica River(Polish Carpathians)and transformations within its active river zone since the end of the 19th *** study used a set of archival and contemporary cartographic materials and the results of three-fold field mapping of the morphodynamic structure of the *** and indirect human interference with the natural environment of the catchment and the fluvial system was taken into account in the *** of changes in the morphodynamic structure of the Ochotnica and its active river zone since the end of the 19th century indicated significant changes in the development trend of the *** contemporary structure of the Ochotnica is more complex than in the *** has been a fragmentation of the riverbed into sections with different morphodynamic *** proportion of erosive sections has increased,which explains the reduced in the width of the active river zone of the *** average width of the active river zone of the river between 1861 and 2022 has changed from 80 m to 18 *** impact has been identified as the main reason for the changes in the morphodynamic structure of the riverbed and its active river ***,only the unregulated sect ion is characterised by free lateral migration of the riverbed and the widest active river zone(~28 m).

关键词： Active river zone Channel changes Mountain river Human impact

TUNED MECHANICAL PROPERTIES ACHIEVED BY VARYING POLYMER STRUCTURE-KNOWLEDGE THAT GENERATES NEW MATERIALS FOR TISSUE ENGINEERING

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Journal of Polymer Science 2007年第2期25卷 113-118页

作者： anna Finne Wistrand Ann-Christine Albertsson Department of Fiber and Polymer Technology Royal Institute of TechnologyStockholmSweden

By changing both the monomer composition and the polymer structure, we have varied the mechanical properties of resorbable polymers. The polymers were synthesized by ring-opening polymerization using L-lactide （LLA）, ε-caprolactone （εCL）, trimethylene carbonate （TMC） and 1,5-dioxepan-2-one （DXO） as monomers. Well-defined triblock copolymers, microblock copolymers and networks have been evaluated, and comparisons between them show that it is possible to tune the mechanical properties. Triblock copolymers with an amorphous middle block of poly（1,5-dioxepan-2- one）（PDXO） and semi-crystalline end-blocks of poly（ε-caprolactone）（PCL） were stronger and had a higher strain at break than triblock copolymers with poly（L-lactide）（PLLA） as end-blocks. Polymers with both DXO and TMC in the amorphous middle-block and PLLA as end-blocks showed a lower stress at break, but the material gained elasticity, a property which is very valuable in tissue engineering. Mechanical properties of networks, synthesized by a novel method, containing PDXO and PCL are also presented. Although it is difficult to compare them with the uncross-linked polymers, this is an additional way to modify and widen the properties.

关键词： Degradable polymer Tuneable mechanical properties Molecular architecture Block copolymers Networks.

Surface coal mine permit application for successful reclamation, semi-arid shortgrass prairie （Wyoming, USA）

在线全文

学校读者我要写书评

暂无评论

International Journal of Coal Science & Technology 2018年第1期5卷 8-17页

作者： anna Krzyszowska Waitkus Environmental Consulting 80 Eagle Nest LaramieWY 82070 USA

Approximately 40% of USA coal originates in an ecologically sensitive area of semi-arid shortgrass prairie in Wyoming. Before a surface coal mine can begin operation in the USA, it must secure a mining permit and comply with regulations and performance standards under the USA Surface Mining Control and Reclamation Act （SMCRA）, other federal environmental acts, and state programs. The Wyoming Department of Environmental Quality （WDEQ）/Land Quality Division （LQD） administers Wyoming＇s coal regulatory program. The permit application and bonding process for the largest surface coal mine permit in the USA, North Antelope Rochelle Mine （NARM） located in short grassland prairie in the northeast Wyoming, is discussed. The permit application process begins with the collection of baseline environ- mental data that characterizes premining conditions of the permit area. The permit application includes adjudication information, baseline information, mine and operation plans, and reclamation plans. Fulfillment of permit commitments and requirements of rules and regulations are inspected monthly by the LQD＇ s representative in the field. Before a mine permit is issued, the mine operator must submit a reclamation bond to secure the performance of reclamation obligations that is later revised annually. In Wyoming, four reclamation bond release phases indicate the completion of various stages of the reclamatikon process. NARM＇s specific bond release verification cirteria, performance standards, and field verificatoins of bond release phases are discussed. The Bond Release Geodatabase （a GIS/GPS approach） was developed for this mine to monitor progress in meeting criteria and performance standards for incremental bond release. The Bond Release Geodatabase significantly reduces the time needed to track bond release progress, reach agreement between operator and regulator, and improve the state inspector＇s ability to assess reclamation adequacy and progress.

关键词： Surface coal mine permitting Bonding Reclamation GIS/GPS geodatabase USA rules and regulations Inspections

Simulation of mass balance behavior in a large-scale circulating fluidized bed reactor

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Particuology 2016年第2期14卷 51-58页

作者： Artur Blaszczuk anna Zylka Jacek Leszczynski Czestochowa University of Technology Institute of Advanced Energy Technologies Dabrowskiego 73 42-200 Czestochowa Poland AGH University Science and Technology Faculty of Energy and Fuels Department of Hydrogen Energy Mickiewicza 30 30-059 Cracow Poland

We determine using a compound model the influence of the mass of granular matter on the behavior of a supercritical circulating fluidized bed （CFB） reactor. Population balance enables a stationary-regime modeling of the mass flow of granular matter inside a CFB unit in a large-scale. The simulation includes some important dynamic processes of gas-particle flows in fluidized bed such as attrition, fragmenta- tion, elutriation, and fuel combustion. Numerical calculations with full boiler loading were performed of operational parameters such as furnace temperature, furnace pressure, feeding materials mass flows, and excess air ratio. Furthermore, three bed inventory masses were adopted as experimental variables in the simulation model of mass balance. This approach enables a sensitivity study of mass flows of granular matter inside a CFB facility. Some computational results from this population balance model obtained for a supercritical CFB reactor are presented that show consistency with the operational data for large-scale CFB units.

关键词： Bed inventory mass Mass flow of solids Circulating fluidized bed Population mass balance mode Sensitivity analysis