检索结果-南通市图书馆

A Systematic Approach for Exploring Underground Environment Using LiDAR-Based System

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computer Modeling in Engineering & Sciences 2023年第9期136卷 2321-2344页

作者： Tareq Alhmiedat Ashraf M.Marei Saleh Albelwi anas bushnag Wassim Messoudi Abdelrahman Osman Elfaki Industrial Innovation&Robotics Center University of TabukTabuk71491Saudi Arabia Faculty of Computers&Information Technology University of TabukTabuk71491Saudi Arabia

Agricultural projects in different parts of the world depend on underground water ***,there have been many unfortunate incidents inwhich children have died in abandoned *** topographical information for these wells is a prerequisite to protecting people from the dangers of falling into them,especially since most of these wells become buried over *** solutions have been developed recently,most with the aimof exploring these well ***,these systems suffer fromseveral limitations,including high complexity,large size,or *** paper focuses on the development of a smart exploration unit that is able to investigate underground well areas,build a 3D map,search for persons and animals,and determine the levels of oxygen and other *** exploration unit has been implemented and validated through several experiments using various experiment *** results proved the efficiency of the developed exploration unit,in terms of 3D modeling,searching,communication,and measuring the level of *** average accuracy of the 3D modeling function is approximately 95.5%.A benchmark has been presented for comparing our results with related works,and the comparison has proven the contributions and novelty of the proposed system’s results.

关键词： Well exploration lidar scanning 3Dmodelling rescue

Pervasive Attentive Neural Network for Intelligent Image Classification Based on N-CDE’s

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2024年第4期79卷 1137-1156页

作者： anas W.Abulfaraj Department of Information Systems Faculty of Computing and Information TechnologyKing Abdulaziz UniversityRabigh21911Saudi Arabia

The utilization of visual attention enhances the performance of image classification *** attentionbased models have demonstrated notable performance,but many of these models exhibit reduced accuracy when confronted with inter-class and intra-class similarities and ***-Controlled Differential Equations(N-CDE’s)and Neural Ordinary Differential Equations(NODE’s)are extensively utilized within this ***’s possesses the capacity to effectively illustrate both inter-class and intra-class similarities and differences with enhanced *** this end,an attentive neural network has been proposed to generate attention maps,which uses two different types of N-CDE’s,one for adopting hidden layers and the other to generate attention *** distinct attention techniques are implemented including time-wise attention,also referred to as bottom N-CDE’s;and element-wise attention,called topN-CDE’***,a trainingmethodology is proposed to guarantee that the training problem is sufficiently *** classification tasks including fine-grained visual classification andmulti-label classification,are utilized to evaluate the *** proposedmethodology is employed on five publicly available datasets,including CUB-200-2011,ImageNet-1K,PASCAL VOC 2007,PASCAL VOC 2012,and MS *** obtained visualizations have demonstrated that N-CDE’s are better appropriate for attention-based activities in comparison to conventional NODE’s.

关键词： Differential equations neural-controlled DE image classification attention maps N-CDE’s

Towards vehicle electrification:A mathematical prediction of battery electric vehicle ownership growth,the case of Turkey

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Green Energy and Intelligent Transportation 2024年第4期3卷 39-43页

作者： anas Alatawneh Duha Ghunaim Budapest University of Technology and Economics 1111 BudapestMűegyetem rkp.3Hungary Bahcesehir University34349 BeşiktaşİstanbulYıldızÇırağan Cd.Türkiye

Many countries are relying on electric vehicles to achieve their future greenhouse gas reduction targets;thus,they are setting regulations to force car manufacturers to a complete shift into producing fully electric vehicles,which will significantly influence the adoption rates of electric *** research investigates the temporal evolution of battery electric vehicle(BEV)ownership growth in Turkey,drawing insights from both historical and current *** employing and optimizing the Gompertz model,we provide a year-by-year projection of BEV ownership rates,aiding in exploring the anticipated timeline for BEV market *** findings indicate that the introduction of BEVs into the Turkish motorization market is poised to push further market saturation by approximately 15 years,to occur in around 2095 as opposed to ***,our analysis underscores the rapid growth pace in BEV ownership compared to the ownership of internal combustion engine vehicles(ICEVs).The main aim of this research is to provide Turkish policymakers and transport planners with solid insights into how the vehicle market will perform in the short and long run,allowing them to prepare a smooth transition from traditional vehicles to BEVs.

关键词： Electric vehicles Gompertz Forecasting Adoption Diffusion

Computational Fluid Dynamics Approach for Predicting Pipeline Response to Various Blast Scenarios: A Numerical Modeling Study

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computer Modeling in Engineering & Sciences 2024年第9期140卷 2747-2777页

作者： Farman Saifi Mohd Javaid Abid Haleem S.M.anas Department of Mechanical Engineering Jamia Millia Islamia(A Central University)New Delhi110025India Department of Civil Engineering Jamia Millia Islamia(A Central University)New Delhi110025India

Recent industrial explosions globally have intensified the focus in mechanical engineering on designing infras-tructure systems and networks capable of withstanding blast *** centered on high-profile facilities such as embassies and petrochemical plants,this concern now extends to a wider array of infrastructures and *** and scholars increasingly prioritize structural safety against explosions,particularly to prevent disproportionate collapse and damage to nearby *** has further amplified the reliance on oil and gas pipelines,making them vital for urban life and prime targets for terrorist ***,there is a growing imperative for computational engineering solutions to tackle blast loading on pipelines and mitigate associated risks to avert *** this study,an empty pipe model was successfully validated under contact blast conditions using Abaqus software,a powerful tool in mechanical engineering for simulating blast effects on buried *** a Eulerian-Lagrangian computational fluid dynamics approach,the investigation extended to above-surface and below-surface blasts at standoff distances of 25 and 50 *** descriptions in the numerical model relied on Abaqus’default mechanical *** analysis revealed varying pipe performance,with deformation decreasing as explosion-to-pipe distance *** explosion’s location relative to the pipe surface notably influenced deformation levels,a key finding highlighted in the ***,quantitative findings indicated varying ratios of plastic dissipation energy(PDE)for different blast scenarios compared to the contact blast(P0).Specifically,P1(25 mm subsurface blast)and P2(50 mm subsurface blast)showed approximately 24.07%and 14.77%of P0’s PDE,respectively,while P3(25 mm above-surface blast)and P4(50 mm above-surface blast)exhibited lower PDE values,accounting for about 18.08%and 9.67%of P0’s PDE,***

关键词： Blast loading computational fluid dynamics computer modeling pipe networks response prediction structural safety

Iris Recognition Based on Multilevel Thresholding Technique and Modified Fuzzy c-Means Algorithm

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 on Artificial Intelligence 2022年第4期4卷 201-214页

作者： Slim Ben Chaabane Rafika Harrabi anas bushnag Hassene Seddik Computer Engineering Department Faculty of Computers and Information TechnologyUniversity of TabukTabuk47512Saudi Arabia Department of Electrical Engineering University of TunisCEREPENSIT 5 AvTaha Hussein1008TunisTunisia

Biometrics represents the technology for measuring the characteristics of the human *** authentication currently allows for secure,easy,and fast access by recognizing a person based on facial,voice,and fingerprint *** authentication is one of the essential biometric methods for identifying a *** authentication type has become popular in research and practical *** the face and hands,the iris is an internal organ,protected and therefore less likely to be ***,the number of helpful information collected from the iris is much greater than the other biometric human *** work proposes a new iris identification model based on a multilevel thresholding technique and modified Fuzzy cmeans *** multilevel thresholding technique extracts the iris from its surroundings,such as specular reflections,eyelashes,pupils,and *** the other hand,the modified Fuzzy c-means is used to combine and classify the most useful statistical features to maximize the accuracy of the collected ***,having the most optimal iris *** proposed model results are validated using True Success Rate(TSR)and compared to other existing *** results show how effective the combination of the two stages of the proposed model is:the Otsu method and modified Fuzzy c-means for the 400 tested images representing 40 people.

关键词： Biometric authentication recognition iris recognition statistical features feature extraction fuzzy c-means TSR sensitivity classification

Pulmonary Edema and Pleural Effusion Detection Using Efficient Net-V1-B4 Architecture and AdamW Optimizer from Chest X-Rays Images

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2024年第7期80卷 1055-1073页

作者： anas AbuKaraki Tawfi Alrawashdeh Sumaya Abusaleh Malek Zakarya Alksasbeh Bilal Alqudah Khalid Alemerien Hamzah Alshamaseen Faculty of Information Technology Al-Hussein Bin Talal UniversityMa’an71111Jordan College of Information and Communications Technology(ICT) Tafila Technical UniversityTafila66110Jordan IOTISTIC Solutions Company Amman11185Jordan

This paper presents a novelmulticlass systemdesigned to detect pleural effusion and pulmonary edema on chest Xray images,addressing the critical need for early detection in healthcare.A new comprehensive dataset was formed by combining 28,309 samples from the ChestX-ray14,PadChest,and CheXpert databases,with 10,287,6022,and 12,000 samples representing Pleural Effusion,Pulmonary Edema,and Normal cases,***,the preprocessing step involves applying the Contrast Limited Adaptive Histogram Equalization(CLAHE)method to boost the local contrast of the X-ray samples,then resizing the images to 380×380 dimensions,followed by using the data augmentation *** classification task employs a deep learning model based on the EfficientNet-V1-B4 architecture and is trained using the AdamW *** proposed multiclass system achieved an accuracy(ACC)of 98.3%,recall of 98.3%,precision of 98.7%,and F1-score of 98.7%.Moreover,the robustness of the model was revealed by the Receiver Operating Characteristic(ROC)analysis,which demonstrated an Area Under the Curve(AUC)of 1.00 for edema and normal cases and 0.99 for *** experimental results demonstrate the superiority of the proposedmulti-class system,which has the potential to assist clinicians in timely and accurate diagnosis,leading to improved patient ***,ablation-CAM visualization at the last convolutional layer portrayed further enhanced diagnostic capabilities with heat maps on X-ray images,which will aid clinicians in interpreting and localizing abnormalities more effectively.

关键词： Image classification decision support system EfficientNet-V1-B4 AdamW optimizer pulmonary edema pleural effusion chest X-rays

Does Smoking Weaken the Immune System: A Narrative Review

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Health 2024年第6期16卷 553-560页

作者： anas Malik Radif Alubaidi Nevada USA

Smoking has a complex impact on the immune system, affecting both innate and adaptive immunity. It can exacerbate pathogenic immune responses and attenuate defensive immunity, leading to a higher susceptibility to infections and certain diseases. The chemicals in cigarette smoke, such as nicotine and carbon monoxide, can alter immune cell functions and inflammatory responses. Smoking can also have long-term effects on the immune system, with some changes persisting even after quitting [1]. According to a Penn Medicine Physician, the Medical Oncologist Dr. David Porter, “People who are smokers tend to get sicker from infections”, “It may be that smoking impacts the immune system’s ability to respond appropriately”. Thus, such individuals within smoking exposure history might be considered as immunocompromised due to the altered and weakened immune system. Cigarette smoking is a prevalent habit with far-reaching health implications. Among its many adverse effects, smoking significantly alters the immune system’s functionality [1].

关键词： Smoking Immunity Immune System Immunocompromised E-Cigarettes Hookahs

Nonlinear Study on the Mechanical Performance of Built-Up Cold-Formed Steel Concrete-Filled Columns under Compression

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computer Modeling in Engineering & Sciences 2024年第6期139卷 3435-3465页

作者： Oulfa Harrat Yazid Hadidane S.M.anas Nadhim Hamah Sor Ahmed Farouk Deifalla Paul O.Awoyera Nadia Gouider Civil Engineering Laboratory Faculty of TechnologyDepartment of Civil EngineeringBadji Mokhtar-Annaba UniversityP.O.Box 12Annaba23000Algeria Department of Civil Engineering Faculty of Engineering and TechnologyJamia Millia Islamia(A Central University)New Delhi110025India Civil Engineering Department University of GarmianKalar46021Iraq Department of Civil Engineering Harran UniversitySanliurfa63510Turkey Structural Engineering and Construction Management Department Future University in EgyptNew Cairo11835Egypt Department of Civil Engineering Covenant UniversityOta112233Nigeria

Given their numerous functional and architectural benefits,such as improved bearing capacity and increased resistance to elastic instability modes,cold-formed steel(CFS)built-up sections have become increasingly developed and used in recent years,particularly in the construction *** paper presents an analytical and numerical study of assembled CFS two single channel-shaped columns with different slenderness and configurations(backto-back,face-to-face,and box).These columns were joined by double-row rivets for the back-to-back and box configurations,whereas they were welded together for the face-to-face *** built-up columns were filled with ordinary concrete of good *** element models were applied,using ABAQUS software,to assess mechanical performance and study the influence of assembly techniques on the behavior of cold-formed columns under axial *** approaches based on Eurocode 3 and Eurocode 4 recommendations for un-filled and concrete-filled columns respectively were followed for the numerical analysis,and concrete confinement effects were also considered per American Concrete Institute(ACI)standards for face-to-face and box *** obtained results indicated a good correlation between the numerical results and the proposed analytical methodology which did not exceed 8%.The failure modes showed that the columns failed due to instabilities such as local and global buckling.

关键词： Cold-formed steel built-up sections slenderness rivets welded axial compression analytical approaches confinement buckling

Complexity of the Contexts:Features of Private Tutoring and Units for Comparison in the GCC Countries of the Middle East

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

ECNU Review of Education 2024年第1期7卷 42-65页

作者： Mark Bray anas Hajar East China Normal University&The University of Hong Kong Nazarbayev University

Purpose:Private supplementary tutoringwidely known as shadow education because of the ways in which it mimics regular schooling-is increasingly visible across the *** Middle East is no exception,though the phenomenon has received relatively little attention in the English-language *** article maps some key features of shadow education,identifying ways in which contextual forces have shaped ***/Approach/Methods:The article focuses on patterns across and within the six members of the Gulf Cooperation Council(GCC),namely Bahrain,Kuwait,Oman,Qatar,Saudi Arabia,and the United Arab *** draws on literature in both Arabic and English and shows the value of multipleunits of ***:Private tutoring has a long history as a significant phenomenon in some GCC countries,but in others developed more *** governments have had active policies to dampen the phenomenon,but with little *** in the complex dynamics include social,economic andcultural ***:The article assembles literature from around the region,noting both commonalities and diversities among GCC *** contributes to the global literature by providing the regional mapping from this specific part of the world and by showing comparisons with other world regions.

关键词： Cultural forces Gulf Cooperation Council Middle East policies private tutoring shadow education