期刊文献+
共找到102篇文章
< 1 2 6 >
每页显示 20 50 100
Evaluation of Information Technology Implementation for Business Goal Improvement under Process Functionality in Economic Development
1
作者 Sk ayub Al Wahid Nur Mohammad +2 位作者 Rakibul Islam Md. Habibullah Faisal Md. Sohel Rana 《Journal of Data Analysis and Information Processing》 2024年第2期304-317,共14页
Improving organizational performance can be achieved through business process redesign (BPR). When it comes to modern work practices, organizations must often redesign their processes to keep up. This is where enterpr... Improving organizational performance can be achieved through business process redesign (BPR). When it comes to modern work practices, organizations must often redesign their processes to keep up. This is where enterprise software comes in, offering a common data infrastructure that enables different parts of the organization to access all necessary financial data. The architecture of network accounting business process is divided into three layers. The core layer lies in the enterprise LAN that it can integrate six business processes information into one unity of financial information and non-financial information, including purchasing, inventory, production, sales, finance and customer service, and it can generate flexibly a variety of accounting statements to meet fully the information users’ demands by providing more complete and more valuable related information. The second layer lies in Intranet among enterprises based on the core layer that it can support the link of business processes and the inter-sharing of information among node enterprises of SCM and other external enterprises. The third layer lies in Internet based on the second layer that it can fit society, enterprise and individual together, the specific lays the solid foundation of business collaboration, remote management, online management and centralized management. The operating mechanisms of the network accounting business processes are as follows. When the business event occurs, the probe can get the event information in real-time and the result is stored in the database. Meanwhile, the drive controller can control the business events in real-time by gaining control criteria and standards from database. In case the standard is exceeded, the event is not allowed to occur. Enterprise’ business staff or external personnel can output automatically the required results through report tools if they had the reading authority. Supported the information system and optimizing processes, the managers can directly use the business event information, 展开更多
关键词 ISMS OKC EA EAF EAP
下载PDF
Study on Licker-In and Flat Speeds of Carding Machine and Its Effects on Quality of Cotton Spinning Process 被引量:1
2
作者 Md. Mominul Motin ayub Nabi Khan Md. Obaidur Rahman 《Journal of Textile Science and Technology》 2023年第3期198-214,共17页
Spinning has a significant influence on all textile processes. Combinations of all the capital equipment display the process’ critical condition. By transforming unprocessed fibers into carded sliver and yarn, the ca... Spinning has a significant influence on all textile processes. Combinations of all the capital equipment display the process’ critical condition. By transforming unprocessed fibers into carded sliver and yarn, the carding machine serves a critical role in the textile industry. The carding machine’s licker-in and flat speeds are crucial operational factors that have a big influence on the finished goods’ quality. The purpose of this study is to examine the link between licker-in and flat speeds and how they affect the yarn and carded sliver quality. A thorough experimental examination on a carding machine was carried out to accomplish this. The carded sliver and yarn produced after experimenting with different licker-in and flat speed combinations were assessed for important quality factors including evenness, strength, and flaws. To account for changes in material qualities and machine settings, the study also took into consideration the impact of various fiber kinds and processing circumstances. The findings of the investigation showed a direct relationship between the quality of the carded sliver and yarn and the licker-in and flat speeds. Within a limited range, greater licker-in speeds were shown to increase carding efficiency and decrease fiber tangling. On the other hand, extremely high speeds led to more fiber breakage and neps. Higher flat speeds, on the other hand, helped to enhance fiber alignment, which increased the evenness and strength of the carded sliver and yarn. Additionally, it was discovered that the ideal blend of licker-in and flat rates varied based on the fiber type and processing circumstances. When being carded, various fibers displayed distinctive behaviors that necessitated adjusting the operating settings in order to provide the necessary quality results. The study also determined the crucial speed ratios between the licker-in and flat speeds that reduced fiber breakage and increased the caliber of the finished goods. The results of this study offer useful information for textil 展开更多
关键词 Spinning Process Carding Machine Yarn Count FLAT Licker-In Sliver Hank
下载PDF
Incidence of Haematoma Formation in Relation to Smoking in Abdominoplasty Cases
3
作者 Dalal Al Mansoori Anood Alqaydi +6 位作者 Shamsa Alameri Medhat Emil Ibrahim Al Marzooqi Aysha Al Naqbi Muhammad Tariq ayub Dalia Medhat Habib Omar Alameri 《Modern Plastic Surgery》 2023年第1期32-40,共9页
Objective: This study aims at assessing the relation between smoking and the incidence of haematoma formation in abdominoplasty surgery cases. Patients and Methods: This is a 4 years retrospective study involving the ... Objective: This study aims at assessing the relation between smoking and the incidence of haematoma formation in abdominoplasty surgery cases. Patients and Methods: This is a 4 years retrospective study involving the patients who underwent abdominoplasty surgery between the period of May 2015 and April 2019 in Zayed Military Hospital, Abu Dhabi, United Arab of Emirates. The incidence of haematoma formation was assessed in relation to tobacco use in these patients. Results: 164 patients met the inclusion criteria of the study. 35 patients were smokers (21.3%) and 129 patients were non-smokers (78.7%). The mean age was 38.4 (21 - 59 years). The mean BMI was 27 kg/m<sup>2</sup> (21.4 - 34.7 kg/m<sup>2</sup>) and the mean hospital stay was 6.5 days (4 - 19). 23 patients in the study developed haematoma (14%). 11 of them had surgical evacuation of the haematoma (6.7%) while the rest were aspirated in the out-patient clinic. Out of the 23 patients who developed haematoma, 17 patients were smokers and 6 were non-smokers. The incidence of haematoma among smokers was 48.6% (17 out of 35 cases) while its incidence among nonsmokers was 4.7% (6 out of 129 cases) showing a clear relationship between smoking and hematoma formation (p Conclusion: Our study shows a direct relationship between smoking and haematoma formation in abdominoplasty cases. Cessation of smoking during the perioperative period is required before embarking on such a procedure. 展开更多
关键词 HAEMATOMA SMOKING Abdominoplasty Surgery Tobacco Use
下载PDF
Study on the Presence of Filament Yarn in Jamdani Saree in Bangladesh
4
作者 Engr. Mohammed Rubaiyat Chowdhury Engr. ayub Nabi Khan Rahat Hossain 《Journal of Textile Science and Technology》 2023年第4期253-257,共5页
Jamdani weaving is one of the oldest heredities of Bangladesh. From the beginning 100% cotton yarn was used to produce high quality jamdani saree. The weavers were the finest with weaving skills. Higher yarn count yar... Jamdani weaving is one of the oldest heredities of Bangladesh. From the beginning 100% cotton yarn was used to produce high quality jamdani saree. The weavers were the finest with weaving skills. Higher yarn count yarns were used to weave the jamdani saree. In course of time at present manmade fibres are also used to produce jamdani saree. The use of filament yarn may have eased the manufacturing difficulties, but the jamdani saree is missing its originality without 100% cotton. In this project, random jamdani saree sample was collected to identify the fibre composition. Samples of filament were also collected from the manufacturer and tested. It was evident that instead of cotton yarn in warp and weft silk and polyester filament yarn were used. 展开更多
关键词 Jamdani SUSTAINABILITY Muslin and Filament Yarn
下载PDF
Incidence of Haematoma in Post Bariatric Abdominoplasty Cases
5
作者 Anoud Al Qaydi Dalal Al Mansoori +7 位作者 Medhat Emil Shamsa Alameri Aysha Al Naqbi Ibrahim Al Marzooqi Abdulla Tareq Al Hassani Muhammad Tariq ayub Dalia Medhat Habib Omar Alameri 《Modern Plastic Surgery》 2023年第3期74-84,共11页
Objective: This study aims at assessing the incidence of haematoma formation in abdominoplasty cases who had previous bariatric surgery and in those who did not have bariatric surgery before. Patients and Methods: Thi... Objective: This study aims at assessing the incidence of haematoma formation in abdominoplasty cases who had previous bariatric surgery and in those who did not have bariatric surgery before. Patients and Methods: This is a 4 years retrospective study involving patients who underwent abdominoplasty surgery between the period of July 2015 and June 2019. The incidence of haematoma formation was assessed in relation to history of previous bariatric surgery in these patients. Results: 164 patients met the inclusion criteria of the study;46 of them were males and 118 were females. The mean age of the patients included in the study was 38.6 (21 - 60 years). The mean BMI was 27 kg/m<sup>2</sup> (21.4 - 34.7 Kg/m<sup>2</sup>). The mean hospital stay was 6.6 days (4 - 19 days). 107 patients had history of previous bariatric surgery performed and 57 had not. 21 patients developed haematoma (12.8%). 16 of the patients who had haematoma had previous bariatric surgery done (15% of post bariatric surgery cases) while 5 patients developed haematoma with no history of previous bariatric surgery (8.8%). Sixteen male patients out of the 46 male patients in the study developed postoperative haematoma (34.8% of the male patients) while only 5 of the 118 female patients developed postoperative haematoma (4.2% of the female patients) which shows a significant difference in haematoma formation when comparing males to females in general (p Conclusion: Our study shows that the incidence of post abdominoplasty haematoma formation is significantly higher in male patients who had bariatric surgery before when compared to those who had not (p < 0.05). The incidence was higher in males when compared to females (p < 0.001) indicating that males with previous history of bariatric surgery have the highest chance of developing haematoma formation. Combining liposuction of the lower flanks, plication of the recti muscles or both to the abdominoplasty procedure did not result significantly in an increased risk of haematoma formation. 展开更多
关键词 HAEMATOMA Abdominoplasty Surgery Postbariatric Surgery LIPOSUCTION Plication Recti Muscles
下载PDF
Study on Licker-In and Flat Speeds of Carding Machine and Its Effects on Quality of Cotton Spinning Process
6
作者 Md. Mominul Motin ayub Nabi Khan Md. Obaidur Rahman 《Journal of Flow Control, Measurement & Visualization》 2023年第3期198-214,共17页
Spinning has a significant influence on all textile processes. Combinations of all the capital equipment display the process’ critical condition. By transforming unprocessed fibers into carded sliver and yarn, the ca... Spinning has a significant influence on all textile processes. Combinations of all the capital equipment display the process’ critical condition. By transforming unprocessed fibers into carded sliver and yarn, the carding machine serves a critical role in the textile industry. The carding machine’s licker-in and flat speeds are crucial operational factors that have a big influence on the finished goods’ quality. The purpose of this study is to examine the link between licker-in and flat speeds and how they affect the yarn and carded sliver quality. A thorough experimental examination on a carding machine was carried out to accomplish this. The carded sliver and yarn produced after experimenting with different licker-in and flat speed combinations were assessed for important quality factors including evenness, strength, and flaws. To account for changes in material qualities and machine settings, the study also took into consideration the impact of various fiber kinds and processing circumstances. The findings of the investigation showed a direct relationship between the quality of the carded sliver and yarn and the licker-in and flat speeds. Within a limited range, greater licker-in speeds were shown to increase carding efficiency and decrease fiber tangling. On the other hand, extremely high speeds led to more fiber breakage and neps. Higher flat speeds, on the other hand, helped to enhance fiber alignment, which increased the evenness and strength of the carded sliver and yarn. Additionally, it was discovered that the ideal blend of licker-in and flat rates varied based on the fiber type and processing circumstances. When being carded, various fibers displayed distinctive behaviors that necessitated adjusting the operating settings in order to provide the necessary quality results. The study also determined the crucial speed ratios between the licker-in and flat speeds that reduced fiber breakage and increased the caliber of the finished goods. The results of this study offer useful information for textil 展开更多
关键词 Spinning Process Carding Machine Yarn Count FLAT Licker-In Sliver Hank
下载PDF
Fentanyl and xylazine crisis:Crafting coherent strategies for opioid overdose prevention
7
作者 Lakshit Jain Jasleen Kaur +4 位作者 Shahana ayub Danya Ansari Rizwan Ahmed Abdul Qadir Dada Saeed Ahmed 《World Journal of Psychiatry》 SCIE 2024年第6期760-766,共7页
The United States is in the throes of a severe opioid overdose epidemic,primarily fueled by the pervasive use of fentanyl and the emerging threat of xylazine,a veterinary sedative often mixed with fentanyl.The high po... The United States is in the throes of a severe opioid overdose epidemic,primarily fueled by the pervasive use of fentanyl and the emerging threat of xylazine,a veterinary sedative often mixed with fentanyl.The high potency and long duration of fentanyl is compounded by the added risks from xylazine,heightening the lethal danger faced by opioid users.Measures such as enhanced surveillance,public awareness campaigns,and the distribution of fentanylxylazine test kits,and naloxone have been undertaken to mitigate this crisis.Fentanyl-related overdose deaths persist despite these efforts,partly due to inconsistent policies across states and resistance towards adopting harm reduction strategies.A multifaceted approach is imperative in effectively combating the opioid overdose epidemic.This approach should include expansion of treatment access,broadening the availability of medications for opioid use disorder,implementation of harm reduction strategies,and enaction of legislative reforms and diminishing stigma associated with opioid use disorder. 展开更多
关键词 FENTANYL XYLAZINE Opioid overdose EPIDEMIC Opioid use disorder BUPRENORPHINE Medications for opioid use disorder
下载PDF
Exploring Multi-Task Learning for Forecasting Energy-Cost Resource Allocation in IoT-Cloud Systems
8
作者 Mohammad Aldossary Hatem A.Alharbi Nasir ayub 《Computers, Materials & Continua》 SCIE EI 2024年第6期4603-4620,共18页
Cloud computing has become increasingly popular due to its capacity to perform computations without relying on physical infrastructure,thereby revolutionizing computer processes.However,the rising energy consumption i... Cloud computing has become increasingly popular due to its capacity to perform computations without relying on physical infrastructure,thereby revolutionizing computer processes.However,the rising energy consumption in cloud centers poses a significant challenge,especially with the escalating energy costs.This paper tackles this issue by introducing efficient solutions for data placement and node management,with a clear emphasis on the crucial role of the Internet of Things(IoT)throughout the research process.The IoT assumes a pivotal role in this study by actively collecting real-time data from various sensors strategically positioned in and around data centers.These sensors continuously monitor vital parameters such as energy usage and temperature,thereby providing a comprehensive dataset for analysis.The data generated by the IoT is seamlessly integrated into the Hybrid TCN-GRU-NBeat(NGT)model,enabling a dynamic and accurate representation of the current state of the data center environment.Through the incorporation of the Seagull Optimization Algorithm(SOA),the NGT model optimizes storage migration strategies based on the latest information provided by IoT sensors.The model is trained using 80%of the available dataset and subsequently tested on the remaining 20%.The results demonstrate the effectiveness of the proposed approach,with a Mean Squared Error(MSE)of 5.33%and a Mean Absolute Error(MAE)of 2.83%,accurately estimating power prices and leading to an average reduction of 23.88%in power costs.Furthermore,the integration of IoT data significantly enhances the accuracy of the NGT model,outperforming benchmark algorithms such as DenseNet,Support Vector Machine(SVM),Decision Trees,and AlexNet.The NGT model achieves an impressive accuracy rate of 97.9%,surpassing the rates of 87%,83%,80%,and 79%,respectively,for the benchmark algorithms.These findings underscore the effectiveness of the proposed method in optimizing energy efficiency and enhancing the predictive capabilities of cloud computing systems.The IoT 展开更多
关键词 Cloud computing energy efficiency data center optimization internet of things(IoT) hybrid models
下载PDF
A Systematic Literature Review of Machine Learning and Deep Learning Approaches for Spectral Image Classification in Agricultural Applications Using Aerial Photography
9
作者 Usman Khan Muhammad Khalid Khan +4 位作者 Muhammad ayub Latif Muhammad Naveed Muhammad Mansoor Alam Salman A.Khan Mazliham Mohd Su’ud 《Computers, Materials & Continua》 SCIE EI 2024年第3期2967-3000,共34页
Recently,there has been a notable surge of interest in scientific research regarding spectral images.The potential of these images to revolutionize the digital photography industry,like aerial photography through Unma... Recently,there has been a notable surge of interest in scientific research regarding spectral images.The potential of these images to revolutionize the digital photography industry,like aerial photography through Unmanned Aerial Vehicles(UAVs),has captured considerable attention.One encouraging aspect is their combination with machine learning and deep learning algorithms,which have demonstrated remarkable outcomes in image classification.As a result of this powerful amalgamation,the adoption of spectral images has experienced exponential growth across various domains,with agriculture being one of the prominent beneficiaries.This paper presents an extensive survey encompassing multispectral and hyperspectral images,focusing on their applications for classification challenges in diverse agricultural areas,including plants,grains,fruits,and vegetables.By meticulously examining primary studies,we delve into the specific agricultural domains where multispectral and hyperspectral images have found practical use.Additionally,our attention is directed towards utilizing machine learning techniques for effectively classifying hyperspectral images within the agricultural context.The findings of our investigation reveal that deep learning and support vector machines have emerged as widely employed methods for hyperspectral image classification in agriculture.Nevertheless,we also shed light on the various issues and limitations of working with spectral images.This comprehensive analysis aims to provide valuable insights into the current state of spectral imaging in agriculture and its potential for future advancements. 展开更多
关键词 Machine learning deep learning unmanned aerial vehicles multi-spectral images image recognition object detection hyperspectral images aerial photography
下载PDF
Etiology of fulminant hepatic failure:experience from a tertiary hospital in Bangladesh 被引量:5
10
作者 Mamun-Al Mahtab Salimur Rahman +2 位作者 Mobin Khan ayub Al Mamun Shahrin Afroz 《Hepatobiliary & Pancreatic Diseases International》 SCIE CAS 2008年第2期161-164,共4页
BACKGROUND: Fulminant hepatic failure (FHF) is not uncommon in our clinical practice in Bangladesh. There was a rise in acute hepatitis E virus (HEV) in Bangladesh after the 2004 floods. At that time, most of the coun... BACKGROUND: Fulminant hepatic failure (FHF) is not uncommon in our clinical practice in Bangladesh. There was a rise in acute hepatitis E virus (HEV) in Bangladesh after the 2004 floods. At that time, most of the country was under water for more than a month, leading to sewage contamination of the water supply. The aim of this study was to investigate the etiology of FHF in Bangladesh. METHODS: In this retrospective study, 23 patients with FHF who presented with severe impairment of hepato- cellular function (i.e. encephalopathy, coagulopathy and jaundice) within 6 months of onset of symptoms were included. There were 17 men and 6 women, aged from 18 to 32 years. Four of the women were pregnant. Patients were tested for markers for common hepatotrophic viruses. A relevant history was taken and the Patient Record Book of the Unit was reviewed. RESULTS: 56.52% patients (13/23) had HEV infection, and all were anti-HEV IgM-positive tested by ELISA. HBV infection was detected in 34.78% patients (8/23), all of whom were tested positive for either HBsAg or anti-HBs IgM by ELISA. 8.7% patients (2/23) had a positive history for intake of alcohol and/or drugs. CONCLUSIONS: Acute HEV infection is the leading cause of FHF in Bangladesh. Sewage contamination of the water supply following floods contributes to a higher incidence of HEV infection. HBV infection is also important. 展开更多
关键词 hepatitis E virus fulminant hepatic failure FLOOD
下载PDF
Provoking Buying Behaviors Amid Crises:Unfolding the Underlying Mechanisms of Psychological Impairments
11
作者 Muhammad Waleed ayub Ghouri Guofeng Wang +2 位作者 Muhammad Ali Hussain Zhisheng Li Tachia Chin 《International Journal of Mental Health Promotion》 2024年第4期279-292,共14页
Crises in the past have caused devastating,long-lasting impacts on the global economy.The after-effects always bring some dynamic and rigorous challenges for businesses and governments.Such challenges have always been... Crises in the past have caused devastating,long-lasting impacts on the global economy.The after-effects always bring some dynamic and rigorous challenges for businesses and governments.Such challenges have always been a point of discussion for scholars.The recent COVID-19 pandemic emaciated the global economy,leaving everyone mired in uncertainty,fear,and psychological impairments.One of the headwind features utilized by consumers during pandemic was panic buying(PB),which must be explored in various contexts for policymakers and practitioners.To address this gap,this study deployed a moderated mediation mechanism,integrating the health belief model(HBM)and competitive arousal theory(CAT)to excavate the notions underlying PB with the intrusion of evolved real-time psychological disorders:intolerance of uncertainty(IU)and cyberchondria(CYC).The study was conducted as a natural experiment in a South Asian developing economy using online surveys.It found that health beliefs—perceived severity(PSV)and perceived susceptibility(PSC)—positively impact perceived arousal(PA),which causes PB,and that PA has a sturdy mediator role.Moreover,in the relationship between health beliefs and arousal,the different psychological disorders were found to have significant moderating roles The study findings can help mitigate risk uncertainties and panic situations and thus contribute to consumers’wellbeing. 展开更多
关键词 Panic buying health belief model mental health competitive arousal theory intolerance of uncertainty cyberchondria
下载PDF
Effects of partial slip on flow of a third grade fluid 被引量:6
12
作者 S. Asghar M. Mudassar Gulzar M. ayub 《Acta Mechanica Sinica》 SCIE EI CAS CSCD 2006年第5期393-396,共4页
This paper is an analytical study of the rotating flow of a third grade fluid past a porous plate with partial slip effects. It serves as a flow model for the study of polymers. The analytic solution has been determin... This paper is an analytical study of the rotating flow of a third grade fluid past a porous plate with partial slip effects. It serves as a flow model for the study of polymers. The analytic solution has been determined using homotopy analysis method (HAM). 展开更多
关键词 Partial-slip Non-Newtonian fluid Analytic solution Homotopy analysis method
下载PDF
A native herbaceous community exerts a strong allelopathic effect on the woody range-expander Betula fruticosa
13
作者 Lichao Wang ayub M.O.Oduor Yanjie Liu 《Journal of Plant Ecology》 SCIE CSCD 2024年第4期131-140,共10页
Biological invasions by alien and range-expanding native plant species can suppress native plants through allelopathy.However,the homeland security hypothesis suggests that some native plants can resist invasion by pr... Biological invasions by alien and range-expanding native plant species can suppress native plants through allelopathy.However,the homeland security hypothesis suggests that some native plants can resist invasion by producing allelopathic compounds that inhibit the growth of invasive plants.Most research has focused on allelopathic interactions between individual native and invasive plant species,with less emphasis on how allelopathy helps entire native communities resist invasions.Additionally,limited knowledge exists about allelopathic interactions between range-expanding native species and recipient native communities,and their influence on invasion success.To bridge this knowledge gap,we conducted two greenhouse competition experiments to test reciprocal allelopathic effects between a native woody range-expanding species,Betula fruticosa,and a community of four native herbaceous species(Sanguisorba officinalis,Gentiana manshurica,Sium suave and Deyeuxia angustifolia)in China.We assessed whether B.fruticosa and the native community differed in their competitive effects and responses,and whether these were influenced by activated carbon,which neutralizes allelochemicals in the soil.Activated carbon reduced the suppressive effects of the native community on the above-ground biomass of B.fruticosa,which indicates that the native community exerted a strong allelopathic effect on B.fruticosa.In contrast,activated carbon only marginally enhanced the suppressive effects of B.fruticosa on the native community,which indicates that allelopathy is not the primary mechanism by which B.fruticosa exerts its suppression.Overall,these findings support the homeland security hypothesis and suggest that biotic resistance from the native herbaceous community may limit the invasion success of the woody range-expander B.fruticosa. 展开更多
关键词 ALLELOCHEMICALS competition ENCROACHMENT global change NON-NATIVE shrub
原文传递
基于金属氢化物高温蓄热的氢热耦合传递机理 被引量:2
14
作者 刘洋 Iqra ayub +2 位作者 杨福胜 吴震 张早校 《化工学报》 EI CAS CSCD 北大核心 2021年第9期4607-4615,共9页
目前大多数可再生能源如太阳能具有间歇性和不稳定性的问题,因此高效蓄热技术成为了发展太阳能的一个关键途径。金属氢化物高温蓄热技术作为热化学蓄热中最有前途的方法之一,受到了人们的广泛关注。为了实现金属氢化物高温蓄热技术的工... 目前大多数可再生能源如太阳能具有间歇性和不稳定性的问题,因此高效蓄热技术成为了发展太阳能的一个关键途径。金属氢化物高温蓄热技术作为热化学蓄热中最有前途的方法之一,受到了人们的广泛关注。为了实现金属氢化物高温蓄热技术的工程应用,明确其氢热耦合传递机理至关重要。本研究采用数值模拟的方法,通过建立反应器的多物理场耦合模型,讨论了不同时刻下床层内部参数的分布,得到了反应锋面的形成和移动机理以及非均匀反应的形成机理;此外,结合反应器内部氢压、接触热阻和床层热阻的变化规律,明确了不同阶段下金属氢化物高温蓄热技术的控制环节;最后,依据金属氢化物高温蓄热技术的工程应用挑战,提出了相应的研究策略。 展开更多
关键词 太阳能 金属氢化物 高温蓄热 传递 反应器 数值模拟
下载PDF
Hybrid Algorithm-Driven Smart Logistics Optimization in IoT-Based Cyber-Physical Systems
15
作者 Abdulwahab Ali Almazroi Nasir ayub 《Computers, Materials & Continua》 SCIE EI 2023年第12期3921-3942,共22页
Effectively managing complex logistics data is essential for development sustainability and growth,especially in optimizing distribution routes.This article addresses the limitations of current logistics path optimiza... Effectively managing complex logistics data is essential for development sustainability and growth,especially in optimizing distribution routes.This article addresses the limitations of current logistics path optimization methods,such as inefficiencies and high operational costs.To overcome these drawbacks,we introduce the Hybrid Firefly-Spotted Hyena Optimization(HFSHO)algorithm,a novel approach that combines the rapid exploration and global search abilities of the Firefly Algorithm(FO)with the localized search and region-exploitation skills of the Spotted Hyena Optimization Algorithm(SHO).HFSHO aims to improve logistics path optimization and reduce operational costs.The algorithm’s effectiveness is systematically assessed through rigorous comparative analyses with established algorithms like the Ant Colony Algorithm(ACO),Cuckoo Search Algorithm(CSA)and Jaya Algo-rithm(JA).The evaluation also employs benchmarking methodologies using standardized function sets covering diverse objective functions,including Schwefel’s,Rastrigin,Ackley,Sphere and the ZDT and DTLZ Function suite.HFSHO outperforms these algorithms,achieving a minimum path distance of 546 units,highlighting its prowess in logistics path optimization.This comprehensive evaluation authenticates HFSHO’s exceptional performance across various logistic optimization scenarios.These findings emphasize the critical significance of selecting an appropriate algorithm for logistics path navigation,with HFSHO emerging as an efficient choice.Through the synergistic use of FO and SHO,HFSHO achieves a 15%improvement in convergence,heightened operational efficiency and substantial cost reductions in logistics operations.It presents a promising solution for optimizing logistics paths,offering logistics planners and decision-makers valuable insights and contributing substantively to sustainable sectoral growth. 展开更多
关键词 Hybrid optimization internet of things intelligent transport system optimal path finding smart logistics traffic congestion supply chain
下载PDF
Potentially harmful metals,and health risk evaluation in groundwater of Mardan,Pakistan:Application of geostatistical approach and geographic information system 被引量:4
16
作者 Abdur Rashid Muhammad ayub +7 位作者 Asif Javed Sardar Khan Xubo Gao Chengcheng Li Zahid Ullah Tariq Sardar Juma Muhammad Shahla Nazneen 《Geoscience Frontiers》 SCIE CAS CSCD 2021年第3期597-608,共12页
This study investigates the values of pH,total dissolved solids(TDS),elevation,oxidative reduction potential(ORP),temperature,and depth,while the concentrations of Br,and potentially harmful metals(PHMs)such as Cr,Ni,... This study investigates the values of pH,total dissolved solids(TDS),elevation,oxidative reduction potential(ORP),temperature,and depth,while the concentrations of Br,and potentially harmful metals(PHMs)such as Cr,Ni,Cd,Mn,Cu,Pb,Co,Zn,and Fe in the groundwater samples.Moreover,geographic information system(GIS),XLSTAT,and IBM SPSS Statistics 20 software were used for spatial distribution modeling,principal component analysis(PCA),cluster analysis(CA),and Quantile-Quantile(Q-Q)plotting to determine groundwater pollution sources,similarity index,and normal distribution reference line for the selected parameters.The mean values of pH,TDS,elevation,ORP,temperature,depth,and Br were 7.2,322 mg/L,364 m,188 mV,29.6℃,70 m,0.20 mg/L,and PHMs like Cr,Ni,Cd,Mn,Cu,Pb,Co,Zn,and Fe were 0.38,0.26,0.08,0.27,0.36,0.22,0.04,0.43 and 0.86 mg/L,respectively.PHMs including Cr(89%),Cd(43%),Mn(23%),Pb(79%),Co(20%),and Fe(91%)exceeded the guideline values set by the world health organization(WHO).The significant R^(2)values of PCA for selected parameters were also determined(0.62,0.67,0.78,0.73,0.60,0.87,-0.50,0.69,0.70,0.74,-0.50,0.70,0.67,0.79,0.59,and-0.55,respectively).PCA revealed three geochemical processes such as geogenic,anthropogenic,and reducing conditions.The mineral phases of Cd(OH)_(2),Fe(OH)_(3),FeOOH,Mn_(3)O_(4),Fe_(2)O_(3),MnOOH,Pb(OH)_(2),Mn(OH)_(2),MnO_(2),and Zn(OH)_(2)(-3.7,3.75,9.7,-5.8,8.9,-3.6,2.2,-4.6,-7.7,-0.9,and 0.003,respectively)showed super-saturation and under-saturation conditions.Health risk assessment(HRA)values for PHMs were also calculated and the values of hazard quotient(HQ),and hazard indices(HI)for the entire study area were increased in the following order:Cd>Ni>Cu>Pb>Mn>Zn>Cr.Relatively higher HQ and HI values of Ni,Cd,Pb,and Cu were greater than one showing unsuitability of groundwater for domestic,agriculture,and drinking purposes.The long-term ingestion of groundwater could also cause severe health concerns such as kidney,brain dysfunction,liver,stomach problems,and even cancer. 展开更多
关键词 GROUNDWATER Potential harmful metals Health risk indices Cluster analysis Mineral phases
下载PDF
Application of Vortex Generators to Remove Heat Trapped in Closed Channels
17
作者 Alim Al ayub Ahmed Salim Oudah Mezan +6 位作者 Binyamin Murtadha Doghiam Abdullah Elena Tesleva Linar G.Akhmetov Rustem Zalilov Mustafa M.Kadhim Abduladheem Turki Jalil 《Fluid Dynamics & Materials Processing》 EI 2023年第1期15-24,共10页
The utilization of vortex generators to increase heat transfer from cylinders installed inside a duct is investigated.In particular,a channel containing eight cylinders with volumetric heat sources is considered for d... The utilization of vortex generators to increase heat transfer from cylinders installed inside a duct is investigated.In particular,a channel containing eight cylinders with volumetric heat sources is considered for different values of the Reynolds number.The effective possibility to use vortex generators with different sizes to increase heat transfer and,consequently,reduce the surface temperature of the cylinders is examined.Also,the amount of pressure drop inside the channel due to the presence of vortex generators is considered and compared with the cases without vortex generators.The results show that although the addition of generators increases the pressure drop,it strongly contributes to increase the heat transfer coefficient inside the duct(up to 80–90%). 展开更多
关键词 Vortex generators heat trapped temperature of hot surfaces heat transfer
下载PDF
Correlation of umbilical cord blood pH,base deficit,and lactate levels with outcomes of hypoxic newborns:A prospective study
18
作者 Sumbul Qamar Mohd ayub Ansari +1 位作者 J.N.Mohapatra Sana Salim Khan 《Journal of Acute Disease》 2023年第3期114-120,共7页
Objective:To determine the association of the three umbilical cord blood parameters:umbilical cord pH,base deficit,and lactate levels,with neonatal outcomes.Methods:This prospective observational study was conducted f... Objective:To determine the association of the three umbilical cord blood parameters:umbilical cord pH,base deficit,and lactate levels,with neonatal outcomes.Methods:This prospective observational study was conducted from April 2021 to September 2022 with 100 term and late preterm(>35 weeks)neonates whose umbilical cord blood pH was<7.10,Apgar score was<7 at 1 min,and required positive pressure ventilation.Umbilical cord blood was assessed for pH,base deficit,and blood lactate levels.The neonatal outcomes of neonatal intensive care unit admission,Apgar score at 1 min,and Apgar score at 5 min were assessed.Results:The mean of umbilical cord blood pH was 7.04±0.07,mean base deficit was(−9.3±3.9)mmol/L,and mean lactate levels were(6.51±2.29)mmol/L.Neonatal intensive care unit(NICU)admission was needed in 78(78%)neonates.The mean NICU stay length was(2.4±2.2)days ranging from 0 to 12 days with a median of 2 days.Univariate analysis showed no significant difference in cord blood pH(P=0.736)and base deficit(P=0.393)between neonates without NICU admission and neonates who required NICU admission,but lactate level was significantly higher in neonates who required NICU admission(P<0.001).There was no significant difference in cord blood pH(P=0.400)and base deficit(P>0.999)between neonates with Apgar scores 4-7 at 1 min and neonates with Apgar scores<4,but lactate level was significantly higher in neonates with Apgar scores<4 at 1 min(P<0.001).Conclusions:Umbilical cord blood pH,base deficit,and lactate levels are useful novel markers showing a significant correlation with neonatal intensive care unit admission and adverse neonatal morbidities among hypoxic newborns.Overall,lactate was a better predictor of adverse neonatal outcomes as compared to umbilical cord blood pH and base deficit. 展开更多
关键词 Base deficit Hypoxia LACTATE NEONATES OUTCOMES
下载PDF
Impulsive Noise Cancellation in OFDM System Using Low Density Parity Check
19
作者 Attia Irum Abdul Muiz Fayyaz +6 位作者 Sara ayub Mudassar Raza Majed Alhaisoni Muhammad Attique Khan Abdullah Alqahtani Heebum Kim Byeong-Gwon Kang 《Computer Systems Science & Engineering》 SCIE EI 2023年第7期1265-1276,共12页
An effective communication application necessitates the cancellation of Impulsive Noise(IN)from Orthogonal Frequency Division Multiplexing(OFDM),which is widely used for wireless applications due to its higher data ra... An effective communication application necessitates the cancellation of Impulsive Noise(IN)from Orthogonal Frequency Division Multiplexing(OFDM),which is widely used for wireless applications due to its higher data rate and greater spectral efficiency.The OFDM system is typically corrupted by Impulsive Noise,which is an unwanted short-duration pulse with random amplitude and duration.Impulsive noise is created by humans and has non-Gaussian characteristics,causing problems in communication systems such as high capacity loss and poor error rate performance.Several techniques have been introduced in the literature to solve this type of problem,but they still have many issues that affect the performance of the presented methods.As a result,developing a new hybridization-based method is critical for accurate method performance.In this paper,we present a hybrid of a state space adaptive filter and an information coding technique for cancelling impulsive noise from OFDM.The proposed method is also compared to Least Mean Square(LMS),Normalized Least Mean Square(NLMS),and Recursive Least Square(RLS)adaptive filters.It has also been tested using the binary phase-shift keyed(BPSK),four quadrature amplitude modulation(QAM),sixteen QAM,and thirty-two QAM modulation techniques.Bit error Rate(BER)simulations are used to evaluate system performance,and improved performance is obtained.Furthermore,the proposed method is more effective than recent methods. 展开更多
关键词 Impulsive noise adaptive filter OFDM NLMS RLS
下载PDF
Power Scheduling with Max User Comfort in Smart Home:Performance Analysis and Tradeoffs
20
作者 Muhammad Irfan Ch.Anwar Ul Hassan +7 位作者 Faisal Althobiani Nasir ayub Raja Jalees Ul Hussen Khan Emad Ismat Ghandourah Majid A.Almas Saleh Mohammed Ghonaim V.R.Shamji Saifur Rahman 《Computer Systems Science & Engineering》 SCIE EI 2023年第8期1723-1740,共18页
The smart grid has enabled users to control their home energy more effectively and efficiently.A home energy management system(HEM)is a challenging task because this requires the most effective scheduling of intellige... The smart grid has enabled users to control their home energy more effectively and efficiently.A home energy management system(HEM)is a challenging task because this requires the most effective scheduling of intelligent home appliances to save energy.Here,we presented a meta-heuristic-based HEM system that integrates the Greywolf Algorithm(GWA)and Harmony Search Algorithms(HSA).Moreover,a fusion initiated on HSA and GWA operators is used to optimize energy intake.Furthermore,many knapsacks are being utilized to ensure that peak-hour load usage for electricity customers does not surpass a certain edge.Hybridization has proven beneficial in achieving numerous objectives simultaneously,decreasing the peak-to-average ratio and power prices.Widespread MATLAB simulations are cast-off to evaluate the routine of the anticipated method,Harmony GWA(HGWA).The simulations are for a multifamily housing complex outfitted with various cool gadgets.The simulation results indicate that GWA functions better regarding cost savings than HSA.In reputes of PAR,HSA is significantly more effective than GWA.The suggested method reduces costs for single and ten-house construction by up to 2200.3 PKR,as opposed to 503.4 in GWA,398.10 in HSA and 640.3 in HGWA.The suggested approach performed better than HSA and GWA in PAR reduction.For single-family homes in HGWA,GWA and HSA,the reduction in PAR is 45.79%,21.92%and 20.54%,respectively.The hybrid approach,however,performs better than the currently used nature-inspired techniques in terms of Cost and PAR. 展开更多
关键词 Metaheuristics techniques artificial intelligence energy management data analytics smart grid smart home
下载PDF
上一页 1 2 6 下一页 到第
使用帮助 返回顶部