检索结果-南通市图书馆

Effects of moisture damage on asphalt mixtures

Journal of Traffic and Transportation Engineering(English Edition) 2020年第5期7卷 600-628页

作者： Hend Ali omar Nur Izzi MdYusoff Muhammad Mubaraki Halil Ceylan Department of Civil Engineering University of TripoliTripoliLibya Department of Civil Engineering Universiti Kebangsaan MalaysiaBangi 43600Malaysia Faculty of Engineering Jazan UniversityJazanKingdom of Saudi Arabia Department of Civil Construction and Environmental EngineeringIowa State UniversityAmesIA 50011USA

The reduction in the ability of bitumen to bond with the aggregate surface due to the infiltration of moisture has been recognised for years, and this deterioration phenomenon is called moisture damage. In general, the loss of bonding between bitumen and aggregate shortens the service life of the top layer of the pavement. Many investigations have been conducted to understand the mechanisms of moisture damage due to the loss of bonding strength between bitumen and aggregate and to find ways to improve and strengthen the bond to mitigate the effect of moisture. This paper reviews the extensive literature on the loss of bitumen-aggregate bonding strength due to moisture damage in asphalt *** general description of the theories and mechanisms that explain the effect of the thermodynamic, chemical, physical and mechanical characteristics of the bitumen and aggregate on the bonding phenomenon are discussed in this paper. In addition, the causes of and contributing factors to moisture damage and methods to improve the bond between bitumen and aggregates are also discussed. Moreover, a description of the test methods that can be used to evaluate moisture damage in poorly bonded and compacted mixtures are also presented. Special attention is given to a well-known method, known as the pulloff test, which has been successfully used to evaluate aggregate-binder bond strength, both for laboratory and in-situ tests. This includes the test methods, the factors that affect the bonding strength results and their correlation with other test method. A review of the failure mode of bitumen under the pull-off loading test is discussed in the final section of this paper.

关键词： Road engineering Bitumen Aggregate Asphalt mixture Moisture damage

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

Fibroblast activation protein (FAP) as a prognostic biomarker in multiple tumors and its therapeutic potential in head and neck squamous cell carcinoma

引用

Oncology Research 2024年第8期32卷 1323-1334页

作者： RUIFANG LI XINRONG NAN MING LI omar RAHHAL School of Stomatology Shanxi Medical UniversityTaiyuan030001China Department of Stomatology The First Hospital of Shanxi Medical UniversityTaiyuan030001China Department of Oral and Maxillofacial Surgery Xiangya Stomatology HospitalCentral South UniversityChangsha410005China

Background:Fibroblast activation protein(FAP),a cell surface serine protease,plays roles in tumor invasion and immune ***,there is currently no pan-cancer analysis of ***:We aimed to assess the pan-cancer expression proﬁle of FAP,its molecular function,and its potential role in head and neck squamous cell carcinoma(HNSC).Methods:We analyzed gene expression,survival status,immune inﬁltration,and molecular functional pathways of FAP in The Cancer Genome Atlas(TCGA)and Genotype Tissue Expression(GTEx)***,to elucidate the role of FAP in HNSC,we performed proliferation,migration,and invasion assays post-FAP overexpression or ***:FAP expression was elevated in nine tumor types and was associated with poor survival in eight of *** the context of immune inﬁltration,FAP expression negatively correlated with CD8+T-cell inﬁltration inﬁve tumor types and positively with regulatory T-cell inﬁltration in four tumor *** enrichment analysis highlighted FAP’s involvement in the PI3K-Akt signaling *** HNSC cells,FAP overexpression activated the PI3K-Akt pathway,promoting tumor proliferation,migration,and ***,FAP knockdown showed inhibitory ***:Our study unveils the association of FAP with poor tumor prognosis across multiple cancers and highlights its potential as a therapeutic target in HNSC.

关键词： FAP Head and neck squamous cell carcinoma Cancer Prognosis Tumor microenvironment Molecular function

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

Particle Collisions in a Lumped Particle Model

引用

Communications in Computational Physics 2011年第9期10卷 823-843页

作者： omar al-Khayat Are Magnus Bruaset Hans Petter Langtangen Computational Geosciences CBCSimula Research LaboratoryP.O.Box 134NO-1325 LysakerNorway Department of Informatics University of OsloP.O.Box 1080BlindernNO-0316 OsloNorway Center for Biomedical Computing Simula Research LaboratoryP.O.Box 134NO-1325 LysakerNorway

This paper presents an extension of the lumped particle model in[1]to include the effects of particle *** lumped particle model is a flexible framework for the modeling of particle laden flows,that takes into account fundamental features,including advection,diffusion and dispersion of the *** this paper,we transform a binary collision model and concepts from kinetic theory into a collision procedure for the lumped particle *** apply this new collision procedure to investigate numerically the role of particle collisions in the hindered settling *** hindered settling effect is characterized by an increase in the effective drag coefficient CD that influences each particle in the *** coefficient is given by CD=(1−φ)−nC∗D,whereφis the volume fraction of particles,C∗D is the drag coefficient for a single particle,and n≃4.67 for creeping *** obtain an approximation for CD/C∗D by calculating the effective work done by collisions,and comparing that to the work done by the drag *** our numerical experiments,we observe a minimal value of n=***,by allowing high energy dissipation,an approximation for the classical value for creeping flow,n=4.7,is *** also obtain high values for n,up to n=6.5,which is consistent with recent physical experiments on the sedimentation of sand grains.

关键词： Lumped particle model particle collision hindered settling

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

Dual Branches of MHD Three-Dimensional Rotating Flow of Hybrid Nanofluid on Nonlinear Shrinking Sheet

引用

Computers, Materials & Continua 2021年第1期66卷 127-139页

作者： Liaquat Ali Lund Zurni omar Ilyas Khan El-Sayed MSherif School of Quantitative Sciences Universiti Utara MalaysiaSintokKedah06010Malaysia KCAET Khairpur Mir’s Sindh Agriculture UniversityTandojamSindh70060Pakistan Faculty of Mathematics and Statistics Ton Duc Thang UniversityHo Chi Minh CityVietnam Center of Excellence for Research in Engineering Materials King Saud UniversityAl-Riyadh11421Saudi Arabia Electrochemistry and Corrosion Laboratory Department of Physical ChemistryNational Research CentreDokkiCairo12622Egypt

In this study,magnetohydrodynamic(MHD)three-dimensional(3D)flow of alumina(Al2O3)and copper(Cu)nanoparticles of an electrically conducting incompressible fluid in a rotating frame has been *** shrinking surface generates the flow that also has been *** single-phase(i.e.,Tiwari and Das)model is implemented for the hybrid nanofluid transport *** for alumina and copper nanomaterials in the water base fluid are *** layer approximations are used to reduce governing partial differential(PDEs)system into the system of the ordinary differential equations(ODEs).The three-stage Lobatto IIIa method in bvp4c solver is applied for solutions of the governing *** results have been shown to examine how velocity and temperature fields are influenced by various applied *** has been found that there are two branches for certain values of the suction/injection parameter b:The rise in copper volumetric concentration improved the velocity of hybrid nanofluid in the upper *** heat transfer rate improved for the case of hybrid nanofluid as compared to the viscous fluid and simple nanofluid.

关键词： Nonlinear surface viscous dissipation MHD Hybrid nanofluid two branches

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

Selecting Best Software Vulnerability Scanner Using Intuitionistic Fuzzy Set TOPSIS

引用

Computers, Materials & Continua 2022年第8期72卷 3613-3629页

作者： Navneet Bhatt Jasmine Kaur Adarsh Anand omar H.Alhazmi Anil Surendra Modi School of Commerce Narsee Monjee Institute of Management StudiesDeemed to be UniversityMumbai400056India Department of Operational Research Faculty of Mathematical SciencesUniversity of DelhiDelhi110007India Department of Computer Science Taibah UniversityMedina30001Saudi Arabia

Software developers endeavor to build their products with the least number of *** this,many vulnerabilities are detected in software that threatens its *** automated software i.e.,vulnerability scanners,are available in the market which helps detect and manage vulnerabilities in a computer,application,or a ***,the choice of an appropriate vulnerability scanner is crucial to ensure efficient vulnerability *** current work serves a dual purpose,first,to identify the key factors which affect the vulnerability discovery process in a *** second,is to rank the popular vulnerability scanners based on the identified *** will aid the firm in determining the best scanner for them considering multiple *** multi-criterion decision making based ranking approach has been discussed using the Intuitionistic Fuzzy set(IFS)and Technique for Order of Preference by Similarity to Ideal Solution(TOPSIS)to rank the various *** IFS TOPSIS,the opinion of a whole group could be simultaneously considered in the vulnerability scanner *** this study,five popular vulnerability scanners,namely,Nessus,Fsecure Radar,Greenbone,Qualys,and Nexpose have been *** inputs of industry specialists i.e.,people who deal in software security and vulnerability management process have been taken for the ranking *** the proposed methodology,a hierarchical classification of the various vulnerability scanners could be *** clear enumeration of the steps allows for easy adaptability of the model to varied *** study will help product developers become aware of the needs of the market and design better *** from the user’s point of view,it will help the system administrators in deciding which scanner to deploy depending on the company’s needs and *** current work is the first to use a Multi Criterion Group Decision Making technique in vulnerability scanner selection.

关键词： Intuitionistic fuzzy set group decision making multi-criteria decision making(MCDM) ranking algorithm software security TOPSIS vulnerability vulnerability scanners

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

T-cell/histiocyte-rich large B-cell lymphoma in a child:A case report and review of literature

引用

World Journal of Clinical Cases 2018年第6期6卷 121-126页

作者： Chapman Wei Chaplin Wei omar Alhalabi Lei Chen George Washington University School of Medicine and Health Sciences at Washington St. George’s University School of Medicine Division of Cancer Medicine The University of Texas MD Anderson Cancer Center at Houston Department of Pathology and Laboratory Medicine University of Texas Mc Govern Medical School at Houston

T-cell/histiocyte-rich large B-cell lymphoma is uncommon in children population. There were few cases reported in the literature with wide range clinical presentations including advanced stage, and more involvement of liver, spleen and bone marrow. Head and neck lymphadenopathy tends to present in younger children. We report a case of 10-year-old boy who initially presented intermittent fever, headaches and neck lymphadenopathy. Subsequently, he developed diffuse lymphadenopathy and hepatosplenomegaly. T-cell/histiocyte-rich large B-cell lymphoma was diagnosed on a cervical lymph node biopsy. Cervical lymphadenopathy in this age group is most commonly reactive or nonmalignant processes. Lymphoma is much less frequent; mainly are non-Hodgkin lymphomas. However, a subset of large B-cell lymphoma called T-cell/histiocyte-rich B-cell lymphoma is rare in children.

关键词： Pediatric T-cell/histiocyte-rich large B-cell lymphoma Head and neck lymphadenopathy

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

A Novel Method for Thermoelectric Generator Based on Neural Network

引用

Computers, Materials & Continua 2022年第10期73卷 2115-2133页

作者： Mohammad Saraireh A.M.Maqableh Manar Jaradat omar A.Saraereh Mechanical Engineering Department Faculty of EngineeringMutah UniversityKarak61710Jordan Electromechanical Engineering Department Luminus Technical University CollegeAmman11118Jordan Department of Computer Engineering Faculty of EngineeringThe Hashemite UniversityZarqa13133Jordan Department of Electrical Engineering Faculty of EngineeringThe Hashemite UniversityZarqa13133Jordan

The growing need for renewable energy and zero carbon dioxide emissions has fueled the development of thermoelectric generators with improved power generating *** with the endeavor to develop thermoelectric materials with greater figures of merit,the geometrical and structural optimization of thermoelectric generators is equally critical for maximum power output and *** energy strategies that are constantly updated are a viable option for addressing the global energy issue while also protecting the *** have been significant focuses on the development of thermoelectric modules for a range of solar,automotive,military,and aerospace applications in recent years due to various advantages including as low vibration,great reliability and durability,and the absence of moving *** order to enhance the system performance of the thermoelectric generator,an artificial neural network(ANN)based algorithm is ***,to achieve high efficiency and system stability,a buck converter is designed and *** and experimental findings demonstrate that the suggested method is viable and available,and that it is almost similar to the real value in the steady state with the least power losses,making it ideal for vehicle exhaust thermoelectric generator ***,the proposed hybrid algorithm has a high reference value for the development of a dependable and efficient car exhaust thermoelectric generating system.

关键词： Thermoelectric system thermodynamics electromechanics rotational factors neural networks

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

An Optimal Framework for Alzheimer’s Disease Diagnosis

引用

Intelligent Automation & Soft Computing 2023年第7期37卷 165-177页

作者： Amer Alsaraira Samer Alabed Eyad Hamad omar Saraereh Biomedical Engineering Department School of Applied Medical SciencesGerman Jordanian UniversityAmman11180Jordan Department of Electrical Engineering Faculty of EngineeringThe Hashemite UniversityZarqa13133Jordan

Alzheimer’s disease(AD)is a kind of progressive dementia that is frequently accompanied by brain *** the use of the morpho-logical characteristics of MRI brain scans,this paper proposed a method for diagnosing moderate cognitive impairment(MCI)and *** anatom-ical features of 818 subjects were calculated using the FreeSurfer software,and the data were taken from the ADNI *** features were first removed from the dataset after being preprocessed with an age correction algorithm using linear regression to estimate the effects of normal *** these preprocessed characteristics,the extreme learning machine served as a classifier for the diagnosis of AD and *** determining accuracy,sensitivity,specificity,and area under the curve,ten-fold cross validation was *** accuracy of AD diagnosis was 87.62 percent on average after 100 runs,while the area under curve was 94.25 *** sensitivity of the MCI diagnosis was 83.88 percent,while the accuracy was 73.38 *** age correction can help diagnose MCI more *** outcomes showed that the proposed strategy for diagnosing AD and MCI was more effective than existing methods.

关键词： Biomedical engineering healthcare machine learning cognition

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

Ultrastructural Study of Limb Bud Development in Green Turtles Chelonia mydas

引用

Asian Herpetological Research 2012年第1期3卷 69-78页

作者： Nawal AL-MUKHAINI Taher BA-omar Ibrahim MAHMOUD Human and Clinical Anatomy Department College of Medicine and Health SciencesSultan Qaboos University Biology Department College of ScienceSultan Qaboos University

Morphological changes during the embryonic development of limbs of the green turtle,Chelonia mydas,were studied during the entire period of incubation,using transmission and scanning electron microscopy(TEM and SEM). Limb buds were first observed at Stage 2. At that stage,the tip was covered with an apical ectodermal ridge(AER) which began to regress at Stage 6. Associated with AER was the presence of the mesenchymal cells which,consequently,differentiated into muscles,cartilage and bones. The gross features of the skeletal development appeared as a condensation of the cartilaginous structures in the proximal distal region of the limbs. The primordial digits were gradually enclosed by hard keratinized webbed skin. The increase in rate of ossification and skin pigmentation was correlated with the growth of the limbs. The development of the limbs was closely related to the transitional appearance of mucus secretion from the epidermis.

关键词： green turtle Chelonia mydas turtle embryology limb bud development ultrastructure

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

Structural, electronic, and optical studies of chalcogenides stannite Cu2CdSnX4（X=S, Se, and Te）: insights from the DFT study

引用

Optoelectronics Letters 2025年第2期 69-76页

作者： Jamal GUERROUM Mohamed AL-HATTAB Lhoucine MOUDOU Khalid RAHMANI Youssef LACHTIOUI omar BAJJOU Laboratory of Engineering in Chemistry and Physics of Matter Faculty of Sciences and Technics Sultan Moulay Slimane University Ecole Normale Supérieure Mohammed V University in Rabat College of Graduate Studies University of South Africa

In this paper,we have calculated the structural,electronic,and optical properties of chalcogenide stannite Cu2CdSnX4（X=S,Se,Te） *** calculations are based on the density functional theory （DFT） method and are performed using the Cambridge sequential total energy package （CASTEP） code included in the Biovia Material Studio 20 *** optical properties have been studied in a domain that extends energetically from 10 meV to 40 *** results show that Cu2CdSnX4（X=S,Se,Te） stannite exhibits absorption in the visible region,the refractive index decreases with increasing energy,and the refractive index values are n=3.2,3.73 and 3.75 for Cu2CdSnS4,Cu2CdSnSe4and Cu2CdSnTe4,*** show also high conductivity,which implies that this material is promising for solar *** results argue in favor of the use of these materials in various potential *** density of state,band structures,and structural properties of Cu2CdSnX4（X=S,Se,and Te） stannite are also studied in this work.

关键词：

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

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：