检索结果-南通市图书馆

Selective and Adaptive Incremental Transfer Learning with Multiple Datasets for Machine Fault Diagnosis

在线全文

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2024年第1期78卷 1363-1379页

作者： Kwok Tai Chui brij b.gupta Varsha Arya Miguel Torres-ruiz School of Science and Technology Hong Kong Metropolitan UniversityHong Kong999077China Department of Computer Science and Information Engineering Asia UniversityTaichung41354Taiwan Center for Advanced Information Technology Kyung Hee UniversitySeoul02447Korea Symbiosis Centre for Information Technology Symbiosis International UniversityPuneMaharashtra411042India Department of Electrical and Computer Engineering Lebanese American UniversityBeirut1102Lebanon School of Computing Skyline University CollegeSharjah1797United Arab Emirates Department of business Administration Asia UniversityTaichung41354Taiwan Center for Interdisciplinary research University of Petroleum and Energy StudiesDehradun248007India Department of Computer Science&Engineering Chandigarh UniversityChandigarh160036India Centro de Investigación en Computación Instituto Politécnico NacionalUPALM-ZacatencoMexico City07320Mexico

The visions of Industry 4.0 and 5.0 have reinforced the industrial *** have also made artificial intelligence incorporated as a major *** machine faults has become a solid foundation for automatically recognizing machine failure,and thus timely maintenance can ensure safe *** learning is a promising solution that can enhance the machine fault diagnosis model by borrowing pre-trained knowledge from the source model and applying it to the target model,which typically involves two *** response to the availability of multiple datasets,this paper proposes using selective and adaptive incremental transfer learning(SA-ITL),which fuses three algorithms,namely,the hybrid selective algorithm,the transferability enhancement algorithm,and the incremental transfer learning *** is a selective algorithm that enables selecting and ordering appropriate datasets for transfer learning and selecting useful knowledge to avoid negative *** algorithm also adaptively adjusts the portion of training data to balance the learning rate and training *** proposed algorithm is evaluated and analyzed using ten benchmark *** with other algorithms from existing works,SA-ITL improves the accuracy of all *** studies present the accuracy enhancements of the SA-ITL,including the hybrid selective algorithm(1.22%-3.82%),transferability enhancement algorithm(1.91%-4.15%),and incremental transfer learning algorithm(0.605%-2.68%).These also show the benefits of enhancing the target model with heterogeneous image datasets that widen the range of domain selection between source and target domains.

关键词： Deep learning incremental learning machine fault diagnosis negative transfer transfer learning

On dry machining of AZ31b magnesium alloy using textured cutting tool inserts

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 of Magnesium and Alloys 2024年第4期12卷 1608-1618页

作者： Shailendra Pawanr Kapil gupta Department of Mechanical and Industrial Engineering Technology University of JohannesburgDoornfontein CampusJohannesburg 2028 South Africa

Magnesium alloys have many advantages as lightweight materials for engineering applications,especially in the fields of automotive and *** undergo extensive cutting or machining while making products out of *** cutting,a sustainable machining method,causes more friction and adhesion at the tool-chip *** of the promising solutions to this problem is cutting tool surface texturing,which can reduce tool wear and friction in dry cutting and improve machining *** paper aims to investigate the impact of dimple textures(made on the flank face of cutting inserts)on tool wear and chip morphology in the dry machining of AZ31b magnesium *** results show that the cutting speed was the most significant factor affecting tool flank wear,followed by feed rate and cutting *** tool wear mechanism was examined using scanning electron microscope(SEM)images and energy dispersive X-ray spectroscopy(EDS)analysis reports,which showed that at low cutting speed,the main wear mechanism was abrasion,while at high speed,it was *** chips are discontinuous at low cutting speeds,while continuous at high cutting *** dimple textured flank face cutting tools facilitate the dry machining of AZ31b magnesium alloy and contribute to ecological benefits.

关键词： Magnesium alloy Dry machining Textured tools Flank wear Sustainability

Comparative study of thulium fiber laser versus holmium:yttrium-aluminum-garnet laser for ureteric stone management with semi-rigid ureteroscopy: A prospective, single-center study

在线全文

学校读者我要写书评

暂无评论

Asian Journal of Urology 2024年第3期11卷 460-465页

作者： Ankit gupta Arvind P.Ganpule Ankush Puri Abhishek G.Singh ravindra b.Sabnis Mahesh r.Desai Muljibhai Patel Urological Hospital NadiadGujaratIndia

Objective:To compare the efficacy and safety of thulium fiber laser(TFL)and holmium:yttrium-aluminum-garnet(Ho:YAG)laser for ureteric stone management with semi-rigid ***:In a prospective study from January 2020 to December 2021,we compared 40 patients in each group who underwent semi-rigid ureteroscopic lithotripsy with TFL and that with Ho:YAG *** volume,stone density,stone fragmentation rates,total lasing time,total operative time,endoscopic vision,retropulsion and stone free rates were analyzed in both groups and ***:Mean stone volume was comparable in the TFL group and the Ho:YAG laser group(282.45[standard deviation,SD 139.79]mm3 vs.279.49[SD 312.52]mm3;p=0.964).Mean stone density was also comparable in the TFL group and the Ho:YAG laser group(1135.30[SD 317.04]Hounsfield unit vs.1131.75[SD 283.03]Hounsfield unit;p=0.959).The mean stone fragmentation rates calculated as stone volume divided by lasing time were 25.85(SD 10.61)mm3/min and 21.37(SD 14.13)mm3/min in the TFL group and the Ho:YAG laser group,respectively(p=0.113).The mean total lasing time(10.15[SD]4.69 min vs.11.43[SD 4.56]min;p=0.222),mean operative time(25.13[SD 9.51]min vs.25.54[SD 10.32]min;p=0.866),and mean total hospital stay(2.62[SD 0.77]days vs.2.61[SD 0.84]days;p=0.893)were comparable in the TFL group and in the Ho:YAG *** vision was better and retropulsion was less in the TFL *** stone-free rate at 1 month postoperatively was slightly better in the TFL group(100%vs.90%;p=0.095).

关键词： Laser Stone Urolithiasis Thulium Holmium

LSTM based Neural Network Model for Anomaly Event Detection in Care-Independent Smart Homes

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 2689-2706页

作者： brij b.gupta Akshat Gaurav razaz Waheeb Attar Varsha Arya Ahmed Alhomoud Kwok Tai Chui Department of Computer Science and Information Engineering Asia UniversityTaichung413TaiwanChina Symbiosis Centre for Information Technology(SCIT) Symbiosis International UniversityPune411057India Center for Interdisciplinary research University of Petroleum and Energy Studies(UPES)Dehradun248007India Computer Engineering Ronin InstituteMontclairNJ 07043USA Management Department College of Business AdministrationPrincess Nourah bint Abdulrahman UniversityP.O.Box 84428Riyadh11671Saudi Arabia Department of business Administration Asia UniversityTaichung413TaiwanChina Department of Electrical and Computer Engineering Lebanese American UniversityBeirut1102Lebanon Department of Computer Sciences Faculty of Computing and Information TechnologyNorthern Border UniversityRafha91911Saudi Arabia School of Science and Technology Hong Kong Metropolitan University(HKMU)Hong KongChina

This study introduces a long-short-term memory(LSTM)-based neural network model developed for detecting anomaly events in care-independent smart homes,focusing on the critical application of elderly fall *** balances the dataset using the Synthetic Minority Over-sampling Technique(SMOTE),effectively neutralizing bias to address the challenge of unbalanced datasets prevalent in time-series classification *** proposed LSTM model is trained on the enriched dataset,capturing the temporal dependencies essential for anomaly *** model demonstrated a significant improvement in anomaly detection,with an accuracy of 84%.The results,detailed in the comprehensive classification and confusion matrices,showed the model’s proficiency in distinguishing between normal activities and *** study contributes to the advancement of smart home safety,presenting a robust framework for real-time anomaly monitoring.

关键词： LSTM neural networks anomaly detection smart home health-care elderly fall prevention

Neuroprotective effects of resveratrol on retinal ganglion cells in glaucoma in rodents: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

Animal Models and Experimental Medicine 2024年第3期7卷 195-207页

作者： Maryam Golmohammadi Seyed Arash Aghaei Meibodi Sulieman Ibraheem Shelash Al-Hawary Jitendra gupta Ibrohim b.Sapaev Mazin A.A.Najm Marim Alwave Mozhgan Nazifi Mohammadreza rahmani Mohammad Yasin Zamanian Gervason Moriasi School of Medicine Shahid Beheshti University of Medical SciencesTehranIran Department of business Administration Business SchoolAl al-Bayt UniversityMafraqJordan Institute of Pharmaceutical research GLA UniversityMathuraIndia Tashkent Institute of Irrigation and Agricultural Mechanization Engineers TashkentUzbekistan New Uzbekistan University TashkentUzbekistan Pharmaceutical Chemistry Department College of PharmacyAl-Ayen UniversityThi-QarIraq Medical Technical College Al-Farahidi UniversityBaghdadIraq Department of Neurology Hamadan University of Medical SciencesHamadanIran Physiology-Pharmacology research Center Research Institute of Basic Medical SciencesRafsanjan University of Medical SciencesRafsanjanIran Department of Physiology and Pharmacology School of MedicineRafsanjan University of Medical SciencesRafsanjanIran Neurophysiology research Center Hamadan University of Medical SciencesHamadanIran Department of Pharmacology and Toxicology School of PharmacyHamadan University of Medical SciencesHamadanIran Department of Medical biochemistry School of MedicineCollege of Health SciencesMount Kenya UniversityThikaKenya

Glaucoma,an irreversible optic neuropathy,primarily affects retinal ganglion cells(rGC)and causes vision loss and *** damage to rGCs in glaucoma occurs by various mechanisms,including elevated intraocular pressure,oxidative stress,inflammation,and other neurodegenerative *** the disease progresses,the loss of rGCs leads to vision ***,protecting rGCs from damage and promoting their survival are important goals in managing *** this regard,resveratrol(rES),a polyphenolic phytoalexin,exerts antioxidant effects and slows down the evolution and progression of *** present review shows that rES plays a protective role in rGCs in cases of ischemic injury and hypoxia as well as in Erbb2 protein expression in the ***,rES plays protective roles in rGCs by promoting cell growth,reducing apoptosis,and decreasing oxidative stress in H_(2)O_(2)-exposed *** was also found to inhibit oxidative stress damage in rGCs and suppress the activation of mitogen-activated protein kinase signaling *** could alleviate retinal function impairment by suppressing the hypoxia-i nducible factor-1 alpha/vascular endothelial growth factor and p38/p53 axes while stimulating the PI3K/Akt ***,rES might exert potential therapeutic effects for managing glaucoma by protecting rGCs from damage and promoting their survival.

关键词： glaucoma ischemic-reperfusion injury oxidative stress resveratrol retinal ganglion cells

Microstructural, wettability, and corrosion behaviour of TiO_(2) thin film sputtered on aluminium

在线全文

学校读者我要写书评

暂无评论

Journal of Central South University 2024年第7期31卷 2210-2224页

作者： rajeev VErMA Vijay KUMAr Saurabh KANGO Amindra KHILLA rajeev gupta Department of Industrial and Production Engineering Dr B R Ambedkar National Institute of Technology JalandharJalandhar-144008PunjabIndia Department of Mechanical Engineering Dr B R Ambedkar National Institute of Technology JalandharJalandhar-144008PunjabIndia Department of Physics School of EngineeringUniversity of Petroleum&Energy StudiesDehradun 248007UttarakhandIndia

The study investigated the application of radiofrequency(rF)-sputtered TiO2 coatings at various temperatures to enhance the hydrophobicity and corrosion resistance of Al6061 *** research aimed to establish a correlation between the coating process and the resulting surface *** roughness and wettability were quantified with a surface profilometer and ***,chemical boiling and salt spray corrosion tests were conducted to evaluate any topographical changes during these *** analysis further involved the use of field-emission scanning electron microscopy(FESEM),energy-dispersive spectroscopy(EDS),and X-ray diffraction(XrD)techniques to characterize the deposited *** findings indicated that the TiO2 coating applied at 500℃exhibited the highest water contact angle and superior corrosion resistance compared to other *** characterization confirmed that this specific TiO_(2) coating at 500℃ effectively delays corrosion due to its hydrophobic behavior,making it durable for industrial applications.

关键词： aluminium TiO_(2) coating radiofrequency-sputtering hydrophobic corrosion

Efficacy of stromal vascular fraction for knee osteoarthritis:A prospective,single-centre,non-randomized study with 2 years follow-up

在线全文

学校读者我要写书评

暂无评论

World Journal of Orthopedics 2024年第5期15卷 457-468页

作者： Madhan Jeyaraman Naveen Jeyaraman Tarun Jayakumar Swaminathan ramasubramanian rajni ranjan Saurabh Kumar Jha Ashim gupta Department of Orthopaedics ACS Medical College and HospitalDr MGR Educational and Research InstituteChennaiTamil Nadu 600077India Department of biotechnology School of Engineering and TechnologySharda UniversityGreater NoidaUttar Pradesh 201310India Department of Orthopaedics and regenerative Medicine South Texas Orthopaedic Research InstituteLaredoTX 78045United States Department of Orthopaedics KIMS-Sunshine HospitalHyderabadTelangana 500032India Department of Orthopaedics Government Medical CollegeOmandurar Government EstateChennaiTamil Nadu 600002India Department of Orthopaedics School of Medical Sciences and ResearchSharda UniversityGreater NoidaUttar Pradesh 201306India Department of Zoology Kalindi CollegeUniversity of DelhiNew Delhi 110008India Department of Orthopaedics and regenerative Medicine Regenerative OrthopaedicsNoida 201301Uttar PradeshIndia Department of Orthopaedics and regenerative Medicine Future BiologicsLawrencevilleGA 30043United States Department of Orthopaedics and regenerative Medicine BioIntegrateLawrencevilleGA 30043United States

bACKGrOUND Current osteoarthritis(OA)treatments focus on symptom relief without addressing the underlying disease *** regenerative medicine,current treatments have *** regenerative medicine,more research is needed for intra-articular stromal vascular fraction(SVF)injections in OA,including dosage optimization,long-term efficacy,safety,comparisons with other treatments,and mechanism *** To compare the efficacy of intra-articular SVF with corticosteroid(ICS)injections in patients with primary knee *** The study included 50 patients with Kellgren-Lawrence grades II and III *** were randomly assigned(1:1)to receive either a single intra-articular SVF injection(group A)or a single intra-articular ICS(triamcinolone)(group b)*** were followed up at 1,3,6,12,and 24 *** analog score(VAS)and International Knee Documentation Committee(IKDC)scores were administered before the procedure and at all *** safety of SVF in terms of adverse and severe adverse events was *** analysis was performed with SPSS Version 26.0,IbM Corp,Chicago,IL,United *** both groups had similar demographics and baseline clinical ***-up showed minor patient loss,resulting in 23 and 24 in groups A and b *** A experienced a notable reduction in pain,with VAS scores decreasing from 7.7 to 2.4 over 24 months,compared to a minor reduction from 7.8 to 6.2 in Group *** difference in pain reduction in group A was statistically significant from the third month ***,Group A showed significant improvements in knee functionality,with IKDC scores rising from 33.4 to 83.10,whereas Group b saw a modest increase from 36.7 to *** improvement in Group A was statistically significant from 6 months and maintained through 24 *** Our study demonstrated that intra-articular administration of SVF can lead to reduced pain and improved knee function in pa

关键词： Knee osteoarthritis Adipose tissue Stromal vascular fraction regenerative medicine Orthobiologics

Molecular mechanisms of aflatoxin neurotoxicity and potential neuroprotective agents

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Food Science and Human Wellness 2024年第5期13卷 2445-2455页

作者： Chongshan Dai Erjie Tian Hui Li Subhajit Das gupta Zhihui Hao Zhanhui Wang Tony Velkov Jianzhong Shen National Key Laboratory of Veterinary Public Health and Safety Beijing Key Laboratory of Detection Technology for Animal-Derived Food SafetyCollege of Veterinary MedicineChina Agricultural UniversityBeijing 100193China Guangdong Laboratory for Lingnan Modern Agriculture Guangzhou 510642China College of Animal Science and Technology Henan University of Science and TechnologyLuoyang 471023China beijing Key Laboratory of Diagnostic and Traceability Technologies for Food Poisoning Beijing Center for Disease Prevention and ControlBeijing 100013China Department of Internal Medicine University of Texas Southwestern Medical CenterDallas 75230USA Monash biomedicine Discovery Institute Department of PharmacologyMonash UniversityVictoria 3800Australia

Aflatoxins(AFTs)represent one of the most notorious classes of deadly mycotoxins produced by certain fungi that are found on agricultural *** are highly toxic to mammals and are known to cause a series of detrimental effects,including neuro-,hepato-,nephron-,and *** this original review we summarize the mechanisms of aflatoxin-induced neurotoxicity and the clinical potential of novel neuroprotective *** b1(AFb1)is the most toxic congener among the 21 identified *** studies have shown that food borne exposure to AFb1 and/or its metabolites often leads to fatal neurotoxicity in animals and *** studies indicated that AFb1 exposure could induce abnormal behavioral changes,including anxiety,lethargy disorders,depression-like behavior,cognitive,learning and memory defects,and decreased feeding ***,AFb1 exposure has been associated with lipid peroxidation,ablation of non-enzymatic and enzymatic antioxidant defense systems and decreased neurotransmitter ***1 exposure has also been shown to induce DNA damage,apoptosis,pyroptosis,and mitochondrial dysfunction in the brain *** signaling pathways,including gasdermin D,toll like receptor 2(TLr2),TLr4,Akt,NF-κb,ErK/MAPK,protein kinase C(PKC),and mitochondrial apoptotic pathways have been shown to participate in AFb1-induced neuronal or astrocyte cell *** these pathways by small molecules(e.g.,quercetin,curcumin,and gallic acid,and dimethyl fumarate),Chinese herbal extracts(e.g.,Artichoke leaf extract,Chelidonium majus ethanolic extract,pumpkin extract,and Crocus sativus ***),and probiotic supplements could effectively improve AFb1-induced neurobehavioral abnormalities and *** date,the precise molecular mechanisms of AFb1-induced neurotoxicity and potential neuroprotective agents remain *** the present review,the clinical manifestations,molecular mechanisms,and potential neuroprotective agents of AFb1

关键词： Aflatoxin b1(AFb1) Neurotoxicity Molecular mechanisms Chemical preventions

同方期刊数据库

User Perspective of Misplaced PPIUCD and Factors resulting in PPIUCD removal: Qualitative Pilot Study

在线全文

学校读者我要写书评

暂无评论

Open Journal of Epidemiology 2024年第3期14卷 517-532页

作者： A. G. radhika rashmi gupta Pooja Kashyap ravleen bakshi Department of Obstetrics and Gynecology University College of Medical Sciences & Guru Teg Bahadur Hospital Dilshad Garden Delhi India GTb Hospital Delhi India Indian Council of Medical research Delhi India

Objective: The aim of the current study was to assess the impact of operative interventions for misplaced device among women who opted for PPIIUCD and the evaluation of reasons for PPIUCD removal within the follow up period of two years. Design: A descriptive exploratory study was conducted over three months among fourteen PPIUCD acceptors at a tertiary care health facility in Delhi, India. Face-to-face & telephonic in-depth interviews were conducted with a selected sample of PPIUCD acceptors who had later opted for its removal. results: Participants (n = 14) aged 24 – 40 exhibited generally positive attitudes towards PPIUCDs indicating an indicate an understanding of the importance of PPIUCD in preventing unintended pregnancies. Menstrual disturbance and misplaced IUCD were major reasons for removal. despite their own experience necessitating the removal of IUCD, positive experience by other family members (mothers in law) in this study helped to keep the confidence on the contraceptive. Themes included (a) general experience of PPIUCD use (b) Health Facility accessed for removal of IUCD (c) Would she recommend it to others? (d) preferred contraceptive after removal of IUCD. Conclusion: Misplaced IUCD, missing thread, menstrual irregularities, and pain are all associated with PPIUCD and are important reasons for dissatisfaction. Appropriate, timely and supportive individualized care that address knowledge gaps, societal perceptions, and healthcare system challenges would certainly help in reducing dissatisfaction due to PPIUCD and thereby the removal rates.

关键词： Postpartum Intrauterine Device PPIUCD LArC Long Acting reversible Contraception Postpartum Family Planning Contraception