检索结果-南通市图书馆

在线全文

学校读者我要写书评

暂无评论

基于近场动力学微分算子的热传导模型

基于近场动力学微分算子的热传导模型

Unraveling the routes to distant metastases in colorectal cancer:Tumor deposits and lymph node metastases as the gateway

2018年全国固体力学学术会议

作者：顾鑫章青 erdogan madenci 河海大学力学与材料学院 Department of Aerospace and Mechanical Engineering University of Arizona

本文首先回顾了热传导分析的键型(bond-based)和状态型(state-based)近场动力学(peridynamics,PD)模型,随后基于近场动力学微分算子(peridynamic differential operator,PDDO),构建了更具一般性的键型近场动力学热传导模型。近场动力学... 详细信息

本文首先回顾了热传导分析的键型(bond-based)和状态型(state-based)近场动力学(peridynamics,PD)模型,随后基于近场动力学微分算子(peridynamic differential operator,PDDO),构建了更具一般性的键型近场动力学热传导模型。近场动力学微分算子的本质功能是:在局部空间域或时间域上,定义物质点任意阶局部导数的非局部积分形式表达,将任意常/偏微分方程可转化为对应积分方程,从而在数学概念上避免了不连续处导数不存在的奇异性问题。本文详细推导了基于三维完整对称球形近场范围的、二维圆形近场范围的和一维线段近场范围的二阶微分算子,进而采用非局部积分型微分算子取代传统热传导方程中的局部空间导数,从而建立新的键型近场动力学热传导模型。该建模过程类似于非常规状态型近场动力学,而得到的积分型热传导方程与现有键型近场动力学热传导模型一致;选取合适影响函数,新的近场动力学热传导模型能够退化为任意现有近场动力学热传导模型。此外,新的键型近场动力学热传导模型不需要率定微观热传导系数,而直接使用物质宏观热传导系数。模拟分析了混合热边界条件下,完好或含裂纹结构的一维、二维和三维热传导问题,证明了近场动力学热传导模型具有非局部性和能够处理含非连续结构的热传导问题。

关键词：近场动力学微分算子热传导热扩散非局部模型

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Cancer Communications 2024年第10期44卷 1209-1213页

作者： Nelleke Pietronella Maria Brouwer Ayse Selcen Oguz erdogan Shannon van Vliet Natasja Rutgers Nikki Knijn Gesina van Lijnschoten Jessica Juliana Tan Johannes Hendrik Willem de Wilt Niek Hugen Gina Brown Femke Simmer Iris Dionne Nagtegaal Department of Pathology Radboud University Medical CenterNijmegenGelderlandThe Netherlands Department of Pathology PathologyDNAArnhemGelderlandThe Netherlands Department of Pathology Eurofins/Laboratoria voor Pathologie en Medische Microbiologie NederlandEindhovenNoord-BrabantThe Netherlands GI Cancer Imaging Research Unit The Royal Marsden HospitalSuttonLondonUnited Kingdom Department of Surgery Radboud University Medical CenterNijmegenGelderlandThe Netherlands Department of Surgery Netherlands Cancer InstituteAmsterdamNoord-HollandThe Netherlands Department of Surgery Rijnstate HospitalArnhemGelderlandThe Netherlands Imperial College London Hammersmith Campus LondonLondonUnited Kingdom

Currently,lymph node metastases(LNM)are seen as the gateway to distant metastases in CRC and play a crucial role in the Tumor Node Metastasis(TNM)staging system[1,2].Tumor deposits(TD)have been identified as another histological feature with a strong prognostic impact but are currently only deemed clinically relevant in the absence of LNM[2,3].TD are clusters of tumor cells in the fat surrounding the bowel and are often associated with nerves,vessels and lymphatic tissue,giving the cancer cells access to multiple routes of spread[4].

关键词： metastases cancer gateway

Fatigue life prediction of solder joints in electronic packages with ANSYS

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

Dynamics and cytokinic regulation of immune cell infiltration in genetically engineered mouse models of pancreatic cancer dictate the sensitivity to immunotherapy

2003年

作者： madenci erdogan.

来源：畅想之星图书光盘版（南... 评论

在线全文

畅想之星图书光盘版（南通市图书馆镜像）

学校读者我要写书评

暂无评论

Cancer Communications 2024年第1期44卷 178-182页

作者： Okan Safak Shenghan Wang Carmen Mota Reyes Ibrahim Halil Gürcinar Sergey Tokalov Nedim Can Cevik Kivanc Görgülü Bengi Su Yilmaz Emre erdogan Linhan Ye Qiaolin Li Elif Arik Sever SamedÖzer Güldal Süyen Helmut Friess Güralp Onur Ceyhan Rouzanna Istvanffy Hana Algül Ihsan Ekin Demir Department of Surgery Klinikum rechts der IsarTechnical University of MunichSchool of MedicineMunichBavariaGermany Department of General Surgery HPB-UnitSchool of MedicineAcibadem Mehmet Ali Aydinlar UniversityIstanbulIstanbulTurkey Comprehensive Cancer Center München Klinikum rechts der IsarTechnical University of MunichSchool of MedicineMunichBavariaGermany Department of Hematology Oncology and Tumor ImmunologyCharitéUniversity Medicine BerlinCampus Virchow ClinicBerlinBerlinGermany Graduate School of Health Sciences Acibadem Mehmet Ali Aydinlar UniversityIstanbulIstanbulTurkey Department of Physiology Acibadem Mehmet Ali Aydinlar UniversityIstanbulIstanbulTurkey Else Kröner Clinician Scientist Professorship for Translational Pancreatic Surgery MunichGermany Neural Influences in Cancer(NIC)International Research Consortium MunichGermany

Dear Editor,Targeting the immune compartment in pancreatic duc-tal adenocarcinoma(PDAC)holds promise for prognostic improvement,yet our knowledge on the spatial and tem-poral dynamics and the molecular modulators of t... 详细信息

关键词： immune adenocarcinoma immunotherapy

ON SPECTRAL PROPERTIES OF A NEW OPERATOR OVER SEQUENCE SPACES c AND c_0

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

Acta Mathematica Scientia 2014年第5期34卷 1481-1494页

作者： Ezgi erdogan Vatan KARAKAYA Department of Mathematics Marmara UniversityKad?ky Department of Mathematical Engineering Y?ld?z Technical University

In this work, we classify and calculate spectra such as point spectrum, continuous spectrum and residual spectrum over sequences spaces？∞, c and c0 according to a new matrix operator W which is obtained by matrix pr... 详细信息

关键词： spectrum of an operator matrix transformation sequence space

A methodology for lining design of circular mine shafts in different rock masses

在线全文

学校读者我要写书评

暂无评论

International Journal of Mining Science and Technology 2016年第5期26卷 761-768页

作者： Ozturk Hasan Guler erdogan Mining Engineering Department Middle East Technical University

In this study, the finite element numerical modelling of 2D shaft sections in a Hoek–Brown medium are carried out in a non-hydrostatic stress state in an attempt to predict pressures developing around mine shafts. An iterative process of applying support pressure until observing no failure zone around the shaft is used to simulate the required lining support pressure for different shaft models. Later, regression analysis is carried out to find a generic shaft pressure equation representing the rock mass and the stress state. Finally, the developed pressure equation which shows a good agreement with a case study is used in elastic ‘‘thick-walled cylinder" equation to calculate the lining thickness required to prevent the development of a failure zone around the shaft. At the end of the study, a user-friendly object-oriented computer program ‘‘Shaft 2D" is developed to simplify the rigorous shaft lining thickness calculation process.

关键词： Lining thickness Shaft support Shaft Non-hydrostatic stress

Physical and Mechanical Properties of PP Composites based on Different Types of Lignocellulosic Fillers

在线全文

学校读者我要写书评

暂无评论

Journal of Wuhan University of Technology(Materials Science) 2018年第6期33卷 1298-1307页

作者： Selcuk erdogan Umit HUNER Trakya University Faculty of Engineering Department of Mechanical Engineering

The presents preparation and characterization of different types of lignocellulosic fillers(pine wood sawdust/walnut shell flour/black rice husk powder) reinforced polypropylene composites were presented. The effect of MAPP as coupling agent(4 wt%) on the physical and mechanical properties was also investigated. Polypropylene composites were prepared at different rates of filler/matrix(wt%) by using extrusion(for melt blending) and hot compression molding process. Maximum values of tensile and flexural strength were obtained as 26.1 and 43.4 MPa, respectively, whereas the elongation at break value was 4.11% at 10% pine wood sawdust reinforced PP. Tensile and flexural modulus of composites reached the maximum values as 3855 and 3633 MPa with the composite of 30% walnut shell flour reinforced PP. Characterization of composites was carried out by using tensile test, flexural test, FT-IR, and SEM.

关键词： natural filler water absorption FTIR polypropylene MAPP

NOTES ON THE SPECTRAL PROPERTIES OF THE WEIGHTED MEAN DIFFERENCE OPERATOR G(u,v;?) OVER THE SEQUENCE SPACE ?_1

在线全文

学校读者我要写书评

暂无评论

Acta Mathematica Scientia 2016年第2期36卷 477-486页

作者： Vatan KARAKAYA Ezgi erdogan Department of Mathematical Engineering Yzldiz Technical UniversityDavutpasaIstanbulTurkey Department of Mathematics Marmara UniversityKadikoyIstanbulTurkey

In the study by Baliarsingh and Dutta [Internat. ***., Vol.2014（2014）, Article ID 786437], the authors computed the spectrum and the fine spectrum of the product operator G （u, v; A） over the sequence space e1. The product operator G （u, v; △） over l1 is defined by （G（u,v;△）x）k=^k∑i=0ukvi（xi- xi-1） with xk = 0 for all k 〈 0, where x = （xk）∈e1,and u and v axe either constant or strictly decreasing sequences of positive real numbers satisfying certain conditions. In this article we give some improvements of the computation of the spectrum of the operator G （u, v; △） on the sequence space gl.

关键词： Spectrum of an operator weighted mean difference operator sequence space

Microtextural Characteristics and Origin of Dolomites in the Tepearasi Formation, SW of Beysehir-Konya, Turkey

在线全文

学校读者我要写书评

暂无评论

Acta Geologica Sinica(English Edition) 2002年第1期76卷 100-109页

作者： erdogan TEKIN Ali SARI Department of Geological Engineering Faculty of Engineering Ankara UniversityTandogan Ankara 06100 TurkeyDepartment of Geological Engineering Faculty of Engineering Ankara UniversityTandogan Ankara 06100 Turkey

The Tepearasi Formation of the autochthonous Geyikdagi Group in the CentralTauride Belt, SE of Beysehir, is Dogger in age and consists dominantly of massive limestones andgreyish dolomites occurring within the middle to upper sections. The total thickness of thedolomitic levels ranges from 100-300 m and laterally extends 500-700 m. Three types of dolomite weredistinguished through petrographic analyses: homogeneous, mottled (saddle-crystalline) andjoint-filling dolomite, which were interpreted to have formed in two different stages, earlydiagenetic and late diagenetic. The homogeneous dolomite of the early diagenetic stage islight-coloured and monotonous-textured and shows the form of a dolosparite mosaic. The mottleddolomite formed in the late diagenetic stage is light- to dark-coloured and coarsely granularidiomorphic. The other type of late diagenetic dolomite, described as the joint-filling type,presents a crystal growth pattern from the joint walls towards the centre of the joint space. It isassociated with coarse calcite crystals as well as primary dolomite crystal clasts which were formedin the early diagenetic stage. In addition to these characteristics, cataclastic texture indicatingthe influence of tectonism is also observed. Microtexture-oriented scanning electron microscopy(SEM) studies indicate that mottled dolomites show zonal structures and contain secondarydissolution vugs. SEM studies also revealed the existence of some remains (calcite, clay etc.) injoint-filling dolomites. Analyses by energy dispersive spectrometry (EDS) indicate the existence ofclay minerals (likely to be illite) in the pores of dolomite. Isotope studies conducted to shedlight onto the origin of the dolomites of the Tepearasi Formation yielded the results of delta^18O=-2.48 to - 3.87 per thousand and delta^13C=0.93 to l.12 per thousand for the early diagenetichomogeneous dolomites. Mottled and joint-filling type dolomites of the late diagenetic stage, on theother hand, gave the r

关键词： Tepearasi dolomites microtextural characteristics dolomitization models