检索结果-南通市图书馆

Intelligent Transmission Control for Efficient Operations in SDN

Computers, Materials & Continua 2022年第5期71卷 2807-2825页

作者： reem Alkanhel Abid Ali Faisal Jamil Muzammil Nawaz Faisal Mehmood Ammar Muthanna Department of Information Technology College of Computer and Information SciencesPrincess Nourah Bint Abdulrahman UniversityRiyadhSaudi Arabia Department of Computer Science University of Engineering and TechnologyTaxila47080Pakistan Department of Computer Science Govt.Akhtar Nawaz Khan(Shaheed)Degree College KTSHaripur22620Pakistan Department of Computer Engineering Jeju National UniversityJeju-siJeju Special Self-Governing Province63243Korea School of Information and Communication Engineering Zhengzhou UniversityChina Department of Telecommunication Networks and Data Transmission The Bonch-Bruevich Saint-Petersburg State University of Telecommunications193232Saint PetersburgRussia Peoples Friendship University of Russia(RUDN University)6 Miklukho-Maklaya St Moscow117198Russian Federation

Although the Software-Defined Network(SDN)is a well-controlled and efficient network but the complexity of open flow switches in SDN causes multiple *** solutions have been proposed so far for the prevention of errors and mistakes in it but yet,there is still no smooth transmission of pockets from source to destination specifically when irregular movements follow the destination host in SDN,the errors include packet loss,data compromise *** accuracy of packets received at their desired destination is possible if networks for pockets and hosts are monitored instead of analysis of network snapshot statistically for the state,as these approaches with open flow switches,discover bugs after their *** article proposes a design to achieve the said objective by defining the Intelligent Transmission Control Layer(ITCL)*** monitors all the connections of end hosts at their specific locations and performs necessary settlements when the connection state changes for one or multiple *** layer informs the controller regarding any state change at one period and controller collects information of end nodes reported via ***,updates flow tables accordingly to accommodate a location-change scenario with a routechange *** is organized on prototype-based implementation using the popular POX *** this paper,it has been discovered that ITCL produces efficient performance in the trafficking of packets and controlling different states of SDN for errors and packet loss.

关键词： Software-defined network ITCL POX open flow

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

Characterization of Unsaturated Polyester Filled with Waste Coconut Shells, Walnut Shells, and Carbon Fibers

引用

Fluid Dynamics & Materials Processing 2023年第10期19卷 2449-2469页

作者： Marwah Subhi Attallah reem Alaa Mohammed Ruaa Haitham Abdel-Rahim Department of Materials Engineering University of Technology-IraqBaghdadIraq

This study aims to evaluate the erosion behavior and the hardness of hybrid composites made of varying amounts of coconut shells,walnut shells,and carbonﬁbers dispersed in a polyester ***(L16)Taguchi experiments were used to determine the optimal combination of *** particular,an erosion device con-sisting of a motor with a constantﬂow rate of 45 L/min,a pump with a diameter of 40 mm,a nozzle with a dia-meter of 5 mm,and a tank made of“perspex glass”55 cm long,30 cm tall,and 25 cm wide was *** tests were conducted by varying the sample-to-nozzle distance,the pattern angle,and the sand particle *** results have revealed that the presence of 7.5%by weight of waste coconut shell,for conditions corresponding to 90°angle,sand size 425μm,stand distance 30 cm,gives the best wear resistance(3.04×10^(-5) g/g).Theﬁller content and sand particle size affect the erosive rate,with the angle playing a secondary *** distance between the sample and the nozzle has a weaker effect on erosive *** hardness results show that the models(UP-5%carbonﬁber-2.5-3.5-4.5-5.5-6.5-7.5 wt.%waste coconut shell)give the best values for prayer compared to the samples(UP-5 wt.%carbonﬁber-2.5-3.5-4.5-5.5-6.5-7.5 wt.%waste walnut shell).

关键词： Unsaturated polyester resin carbonﬁber waste coconut shell walnut shell erosive behavior Taguchi’s method L16

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 loop(Roux en Y) reconstruction with isolated gastric limb reduces delayed gastric emptying after pancreatico-duodenectomy

引用

World Journal of Gastrointestinal Surgery 2019年第2期11卷 93-100页

作者： Offir Ben-Ishay reem Abu Zhaya Yoram Kluger Surgical Oncology Unit Division of General Surgery Rambam Health Care Campus

BACKGROUND Single loop reconstruction(SLR) was routine in our institution for patients undergoing pancreatico-duodenectomy(PD). Roux-en Y reconstruction with an isolated gastric limb(RIGL) recently became the reconstruction of *** To evaluate the impact of RIGL on incidence and severity of delayed gastric emptying(DGE).METHODS This is a single institution, retrospective analysis of patients undergoing PD. All patients undergoing PD from July 2010 through December 2016 were included in the study. Outcome of RIGL were compared to SLR. Primary measure of outcome included incidence and severity of DGE. Secondary measures of outcome were overall complications and postoperative *** One hundred and seventy-nine patients were included in the study. Fifty-two had RIGL, 127 had SLR. Overall complication rate was 40.2%, patients in the RIGL group experienced lower rates of DGE(15.4% vs 59.1%, P = 0.001). Other patient related outcomes were also significantly reduced: day of nasogastric tube removal(3 vs 5, P < 0.001), regain of normal diet(8 vs 9, P < 0.001). On multivariate analysis RIGL was associated independently with reduced rates of DGE(P < 0.001, OR 0.14)CONCLUSION The current study shows that RIGL reduces the rate of DGE after PD. Further prospective randomized controlled trials are required to affirm the current data.

关键词： Pancreaticoduodenectomy Delayed gastric emptying Complications Roux en Y

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

Influence of nitrogen sources on growth and mycotoxin production by isolates of Pyrenophora tritici-repentis from wheat

引用

The Crop Journal 2016年第2期4卷 119-128页

作者： Noureddine Bouras Michael D.Holtz reem Aboukhaddour Stephen E.Strelkov Department of Agricultural Food and Nutritional Science410 Agriculture/Forestry CentreUniversity of Alberta Laboratoire de Biologie des Systemes Microbiens(LBSM) Ecole Normale Superieure de KoubaAlgiersAlgeria Departement de Biologie Faculte des Sciences de la Nature et de la Vie et Sciences de la TerreUniversite de Ghardaia Field Crop Development Centre Alberta Agriculture and Food

The fungus Pyrenophora tritici-repentis(Died.) Drechs. infects the leaves and kernels of wheat,causing tan spot and red smudge, respectively. Isolates of P. tritici-repentis have been reported to be both phytopathogenic and mycotoxigenic. This research investigates the influence of nitrogen sources on growth and production of mycotoxins by eight different isolates of P. tritici-repentis. A synthetic agar medium(SAM) was used with different nitrogen sources, both inorganic [(NH4Cl, NH4NO3and(NH4)2SO4)] and organic(L-alanine, L-histidine, and L-lysine), at a concentration of 37.5 mmol L-1. Individual isolates exhibited different growth rates that varied according to the nitrogen source added to the medium. The choice of nitrogen source also had a major effect on production of the mycotoxins emodin, catenarin and islandicin. The highest concentrations of emodin, 54.40 ± 4.46 μg g-1, 43.07 ± 23.39 μg g-1and28.91 ± 4.64 μg g-1of growth medium, were produced on the complex medium(V8-potato dextrose agar) by the isolates Alg-H2, 331-2 and TS93-71 B, respectively. A relatively high concentration of emodin also was produced by isolates Az35-5(28.29 ± 4.71 μg g-1of medium)and TS93-71B(27.03 ± 4.09 μg g-1of medium) on synthetic medium supplemented with L-alanine. The highest concentrations of catenarin(174.54 ± 14.46 μg g-1and 104.87 ±6.13 μg g-1of medium) were recorded for isolates TS93-71 B and Alg-H2 on synthetic medium supplemented with L-alanine and NH4 Cl, respectively. The highest concentration of islandicin(4.64 ± 0.36 μg g-1medium) was observed for isolate 331-2 in the presence of L-lysine. There was not a close relationship between mycelial growth and mycotoxin production by the fungal isolates. This is the first report on the influence of nitrogen sources on the production of mycotoxins by P. tritici-repentis.

关键词： Catenarin Emodin Islandicin Nitrogen source Tan spot Triticum aestivum

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

Static Analysis Techniques for Fixing Software Defects in MPI-Based Parallel Programs

引用

Computers, Materials & Continua 2024年第5期79卷 3139-3173页

作者： Norah Abdullah Al-Johany Sanaa Abdullah Sharaf Fathy Elbouraey Eassa reem Abdulaziz Alnanih Department of Computer Science Faculty of Computing and Information TechnologyKing Abdulaziz UniversityJeddah21589Saudi Arabia Software Engineering and Distributed System Research Group King Abdulaziz UniversityJeddah21589Saudi Arabia

The Message Passing Interface (MPI) is a widely accepted standard for parallel computing on distributed ***, MPI implementations can contain defects that impact the reliability and performance of parallelapplications. Detecting and correcting these defects is crucial, yet there is a lack of published models specificallydesigned for correctingMPI defects. To address this, we propose a model for detecting and correcting MPI defects(DC_MPI), which aims to detect and correct defects in various types of MPI communication, including blockingpoint-to-point (BPTP), nonblocking point-to-point (NBPTP), and collective communication (CC). The defectsaddressed by the DC_MPI model include illegal MPI calls, deadlocks (DL), race conditions (RC), and messagemismatches (MM). To assess the effectiveness of the DC_MPI model, we performed experiments on a datasetconsisting of 40 MPI codes. The results indicate that the model achieved a detection rate of 37 out of 40 codes,resulting in an overall detection accuracy of 92.5%. Additionally, the execution duration of the DC_MPI modelranged from 0.81 to 1.36 s. These findings show that the DC_MPI model is useful in detecting and correctingdefects in MPI implementations, thereby enhancing the reliability and performance of parallel applications. TheDC_MPImodel fills an important research gap and provides a valuable tool for improving the quality ofMPI-basedparallel computing systems.

关键词： High-performance computing parallel computing software engineering software defect message passing interface deadlock

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

Explainable, Domain-Adaptive, and Federated Artificial Intelligence in Medicine

引用

IEEE/CAA Journal of Automatica Sinica 2023年第4期10卷 859-876页

作者： Ahmad Chaddad Qizong Lu Jiali Li Yousef Katib reem Kateb Camel Tanougast Ahmed Bouridane Ahmed Abdulkadir School of Artificial intelligence Guilin Universiy of Electronic TechnologyGuilin 541004China Laboratory for Imagery Vision and Artificial IntelligenceEcole de Technologie SuperieureMontrealQuebec H3C 1K3Canada College of Medicine Taibah UniversityMadinah 42353Saudi Arabia College of Computer Science and Engineering Taibah UniversityMadinah 42353Saudi Arabia Laboratory of Design Optimization and Modeling SystemsUniversity of LorraineMetz 57070France Center for Data Analytics and Cybersecurity(CDAC) University of SharjahSharjah 27272United Arab Emirates Laboratoire de recherche en neuroimagerie Centre Hospitalier Universitaire VaudoisMont Paisible 161011LausanneSwitzerland

Artificial intelligence(AI)continues to transform data analysis in many *** in each domain is driven by a growing body of annotated data,increased computational resources,and technological *** medicine,the sensitivity of the data,the complexity of the tasks,the potentially high stakes,and a requirement of accountability give rise to a particular set of *** this review,we focus on three key methodological approaches that address some of the particular challenges in AI-driven medical decision making.1)Explainable AI aims to produce a human-interpretable justification for each *** models increase confidence if the results appear plausible and match the clinicians ***,the absence of a plausible explanation does not imply an inaccurate *** in highly non-linear,complex models that are tuned to maximize accuracy,such interpretable representations only reflect a small portion of the justification.2)Domain adaptation and transfer learning enable AI models to be trained and applied across multiple *** example,a classification task based on images acquired on different acquisition hardware.3)Federated learning enables learning large-scale models without exposing sensitive personal health *** centralized AI learning,where the centralized learning machine has access to the entire training data,the federated learning process iteratively updates models across multiple sites by exchanging only parameter updates,not personal health *** narrative review covers the basic concepts,highlights relevant corner-stone and stateof-the-art research in the field,and discusses perspectives.

关键词： Domain adaptation explainable artificial intelligence federated learning

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

Teleaudiology practice in COVID-19 pandemic in Egypt and Saudi Arabia

引用

Journal of Otology 2022年第2期17卷 78-83页

作者： reem Elbeltagy Eman H.Waly Huny M.Bakry Audiovestibular medicine Otorhinolaryngology DepartmentFaculty of MedicineZagazig UniversityEgypt Health Communication Sciences Department.College of Health and Rehabilitation Sciences Princess Nourah bint Abdulrahman UniversitySaudi Arabia Community Environmental and Occupational Medicine DepartmentFaculty of MedicineZagazig UniversityEgypt

Objective:To evaluate the audiologists’attitudes and practice towards teleaudiology,as well as to assess the audiological services provided in Egypt and Saudi Arabia during the COVID-19 ***:A cross sectional study was conducted among 112 audiologists who were recruited through convenience *** logistic regression was used to test the association between practice of tele audiology as a dependent variable and some independent ***:25.4%of the studied sample were practicing tele ***’age and attitude toward telemedicine were the independent predictors of tele audiology practice at p value≤***:The tele audiology practice is ***,raising the knowledge of audiologist about the great value of practicing tele audiology is very important,infrastructure,equipment,and technology especially telecommunication should be improved and facilitated for both audiologist and patients.

关键词： COVID-19 Telemedicine Audiology Egypt Saudi Arabia

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

Harnessing digital workflows for the understanding,promotion and participation in the conservation of heritage sites by meeting both ethical and technical challenges

引用

Built Heritage 2020年第1期4卷 56-73页

作者： Mario Santana Quintero reem Awad Luigi Barazzetti Carleton Immersive Media Studio Carleton University1125 Colonel by DriveOttawaON K1J 5B6Canada Department of Architecture Politecnico di MilanoPonzio 3120133 MilanoItaly

The current application of digital workflows for the understanding,promotion and participation in the conservation of heritage sites involves several technical challenges and should be governed by serious ethical *** consists of capturing(or mapping)the physical characteristics of character-defining elements that provide the significance of cultural heritage ***,the outcome of this work represents the cornerstone information serving for their conservation,whatever it uses actively for maintaining them or for ensuring a posterity record in case of *** records produced could guide the decision-making process at different levels by property owners,site managers,public officials,and conservators around the world,as well as to present historical knowledge and values of these *** documentation may also serve a broader purpose:over time,it becomes the primary means by which scholars and the public apprehends a site that has since changed radically or *** contribution is aimed at providing an overview of the potential application and threats of technology utilised by a heritage recording professional by addressing the need to develop ethical principles that can improve the heritage recording practice at large.

关键词： Documentation Recording Cultural heritage Best practice Ethical commitment Digital workflows

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

Room-temperature lasing from nanophotonic topological cavities

引用

Light(Science & Applications) 2020年第1期9卷 823-830页

作者： Daria Smirnova Aditya Tripathi Sergey Kruk Min-Soo Hwang Ha-reem Kim Hong-Gyu Park Yuri Kivshar Nonlinear Physics Center Research School of PhysicsAustralian National UniversityCanberraACT 2601Australia Institute of Applied Physics Russian Academy of ScienceNizhny Novgorod 603950Russia Department of Physics Indian Institute of TechnologyDelhi 110016India Department of Physics Korea UniversitySeoul 02841Republic of Korea

The study of topological phases of light underpins a promising paradigm for engineering disorder-immune compact photonic devices with unusual *** with an optical gain,topological photonic structures provide a novel platform for micro-and nanoscale lasers,which could benefit from nontrivial band topology and spatially localized gap ***,we propose and demonstrate experimentally active nanophotonic topological cavities incorporating Ⅲ-Ⅴ semiconductor quantum wells as a gain medium in the *** observe room-temperature lasing with a narrow spectrum,high coherence,and threshold *** emitted beam hosts a singularity encoded by a triade cavity mode that resides in the bandgap of two interfaced valley-Hall periodic photonic lattices with opposite parity *** findings make a step towards topologically controlled ultrasmall light sources with nontrivial radiation characteristics.

关键词： lasing singularity narrow

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

Overcoming scarring in the urethra: Challenges for tissue engineering

引用

Asian Journal of Urology 2018年第2期5卷 69-77页

作者： Abdulmuttalip Simsek reem Aldamanhori Christopher RChapple Sheila MacNeil Department of Urology Royal Hallamshire HospitalSheffieldUK Department of Materials Science&Engineering Kroto Research InstituteUniversity of SheffieldSheffieldUK

Urethral stricture disease is increasingly common occurring in about 1%of males over the age of *** stricture tissue is rich in myofibroblasts and multi-nucleated giant cells which are thought to be related to stricture formation and collagen *** increase in collagen is associated with the loss of the normal vasculature of the normal *** actual incidence differs based on worldwide populations,geography,and *** stricture aetiology,location,length and patient’s age and comorbidity are important in deciding the course of *** this review we aim to summarise the existing knowledge of the aetiology of urethral strictures,review current treatment regimens,and present the challenges of using tissue-engineered buccal mucosa(TEBM)to repair scarring of the *** asking this question we are also mindful that recurrent fibrosis occurs in other tissuesdhow can we learn from these other pathologies?

关键词： Urethral strictures Fibrosis Tissue-engineered buccal mucosa Augmentation urethroplasty

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：