检索结果-南通市图书馆

Research 2024年第2期2024卷 55-79页

作者： Yang Yang Lee Zaini abdul Halim Mohd Nadhir ab Wahab Tarik Adnan Almohamad School of Electrical and Electronic Engineering Universiti Sains MalaysiaNibong Tebal 14300 Penang Malaysia School of Computer Sciences Universiti Sains MalaysiaGelugor11800 PenangMalaysia Electrical-Electronics Engineering Department Faculty of EngineeringKarabuk University78050 KarabukTurkiye

Stochastic computing(SC)has a substantial amount of study on application-specific integrated circuit(ASIC)design for artificial intelligence(AI)edge computing,especially the convolutional neural network(CNN)***,SC has little to no optimization on field-programmable gate array(FPGA).Scaling up the ASIC logic without FPGA-oriented designs is inefficient,while aggregating thousands of bitstreams is still challenging in the conventional *** research has reinvented several FPGA-efficient 8-bit SC CNN computing architectures,i.e.,SC multiplexer multiply-accumulate,multiply-accumulate function generator,and binary rectified linear unit,and successfully scaled and implemented a fully parallel CNN model on Kintex7 *** proposed SC hardware only compromises 0.14%accuracy compared to binary computing on the handwriting Modified National Institute of Standards and Technology classification task and achieved at least 99.72%energy saving per image feedforward and 31?more data throughput than modern *** to SC,early decision termination pushed the performance baseline exponentially with minimum accuracy loss,making SC CNN extremely lucrative for AI edge computing but limited to classification *** SC's inherent noise heavily penalizes CNN regression performance,rendering SC unsuitable for regression tasks.

关键词： hardware Highly rendering

Introduction to the Special Issue on Computer-Aided Uncertainty Modeling and Reliability Evaluation for Complex Engineering Structures

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10期141卷 1-5页

作者： Debiao Meng abílio Manuel Pinho de Jesus Zeng Meng School of Mechanical and Electrical Engineering University of Electronic Science and Technology of ChinaChengdu611731China INEGI Faculty of EngineeringUniversity of PortoPorto4200-465Portugal School of Civil Engineering Hefei University of TechnologyHefei230009China

1 Summary With the advancement of science and technology,complex engineering structures are widely used in extreme environments[1].In equipment service,many uncertainty factors significantly affect safety and reliability[2–5].Therefore,ensuring high reliability of structures has become an important research direction in engineering *** the same time,the importance of equipment health management of complex engineering structures is becoming increasingly prominent[6–8].Computer-aided uncertainty modeling and reliability assessment have become key tools,and finite element simulation and algorithmic innovation play a key role in the reliability analysis of complex equipment[9,10].These techniques can accurately simulate stress and damage accumulation under various operating environments,providing engineers with important decision support and optimization solutions.

关键词： extreme Reliability environments

Rotating effects on the photoionization cross-section of a 2D quantum ring

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Communications in Theoretical Physics 2024年第10期 153-159页

作者： Carlos Magno o Pereira Frankbelson dos S Azevedo Luís Fernando C Pereira Edilberto o Silva Departamento de Física Universidade Federal do Maranh?o

In this article, we investigate the nonrelativistic quantum motion of a charged particle within a rotating frame, taking into account the Aharonov–Bohm(ab) effect and a uniform magnetic field. our analysis entails the derivation of the equation of motion and the corresponding radial equation to describe the system. Solving the resulting radial equation enables us to determine the eigenvalues and eigenfunctions, providing a clear expression for the energy levels. Furthermore,our numerical analysis highlights the substantial influence of rotation on both energy levels and optical properties. Specifically, we evaluate the photoionization cross-section with and without the effects of rotation. To elucidate the impact of rotation on the photoionization process of the system, we present graphics that offer an appealing visualization of the intrinsic nature of the physics involved.

关键词：

Influence of Continental Atmospheric Forcing on the Decadal Variability of the West African Monsoon

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Atmospheric and Climate Sciences 2024年第1期14卷 1-28页

作者： Adjoua Moïse Landry Famien Sandrine Djakouré Bi Tra Jean Claude Youan Serge Janicot abé Delfin ochou Arona Diedhiou Département des Sciences et Techniques Université Alassane Ouattara de Bouaké Bouaké C&#244te d’Ivoire LASMES-UFR SSMT Université Félix Houphou&#235t Boigny d’Abidjan Abidjan C&#244te d’Ivoire LSS-UFR SSMT Université Félix Houphou&#235t Boigny d’Abidjan Abidjan C&#244te d’Ivoire Laboratoire d’océanographie et du Climat: Expérimentations et Approches Numériques Sorbonne Université IRD CNRS MNHN Paris France Université Grenoble Alpes IRD CNRS Grenoble INP IGE Grenoble France UFHB-IRD Joint International Laboratory of Research on NEXUS Climate Water Energy and Agriculture and Development of Cli-mate Services African Centre of Excellence CCBAD (Climate Change Biodiversity and Sustainable Agriculture) Université Félix Houphou&#235t-Boigny Abidjan C&#244te D’Ivoire

The West African Monsoon (WAM) is characterized by strong decadal and multi-decadal variability and the impacts can be catastrophic for the local populations. one of the factors put forward to explain this variability involves the role of atmospheric dynamics, linked in particular to the Saharan Heat Low (SHL). This article addresses this question by comparing the sets of preindustrial control and historical simulation data from climate models carried out in the framework of the CMIP5 project and observations data over the 20th century. Through multivariate statistical analyses, it was established that decadal modes of ocean variability and decadal variability of Saharan atmospheric dynamics significantly influence decadal variability of monsoon precipitation. These results also suggest the existence of external anthropogenic forcing, which is superimposed on the decadal natural variability inducing an intensification of the signal in the historical simulations compared to preindustrial control simulations. We have also shown that decadal rainfall variability in the Sahel, once the influence of oceanic modes has been eliminated, appears to be driven mainly by the activity of the Arabian Heat Low (AHL) in the central Sahel, and by the structure of the meridional temperature gradient over the inter-tropical Atlantic in the western Sahel.

关键词： Influence of Continental Atmospheric Forcing on the Decadal Variability of the West African Monsoon

Associations between physical activity levels and ATPase inhibitory factor 1 concentrations in older adults

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 Sport and Health Science 2024年第3期13卷 409-418页

作者： Jérémy Raffin Yves Rolland Annelise Genoux Guillaume Combes Mikael Croyal Bertrand Perret Sophie Guyonnet Bruno Vellas Laurent o.Martinez Philipe de Souto Barreto For the MAPT/DSA Group Institut du Vieillissement Gérontopôle de ToulouseCentre Hospitalo-Universitaire de ToulouseToulouse 31000France Centre d'Epidémiologie et de Recherche en Santédes Populations UnitéMixte de Recherche 1295Institut National de la Santéet de la Recherche MédicaleUniversitéToulouse-III-Paul-SabatierToulouse 31000France LimitAging Team Institut des Maladies Métaboliques et CardiovasculairesUnitéMixte de Recherche 1297Institut National de la Santéet de la Recherche MédicaleUniversitéToulouse III-Paul SabatierToulouse 31432France Service de Biochimie Pôle de biologieHôpital de PurpanCentre Hospitalo-Universitaire de ToulouseToulouse 31300France L'Institut du Thorax Institut National de la Santéet de la Recherche MédicaleCentre National de la Recherche ScientifiqueCentre Hospitalo-Universitaire de NantesNantes UniversitéNantes 44000France BioCore US16Structure Fédérative de Recherche BonamyInstitut National de la Santéet de la Recherche MédicaleCentre National de la Recherche ScientifiqueCentre Hospitalo-Universitaire de NantesNantes UniversitéNantes 44000France Plate-forme de spectrométrie de masse Centre de Recherche en Nutrition HumaineOuestNantes 44000France 不详

Background:Adenosine triphosphatase inhibitory factor 1(IF1)is a key protein involved in energy ***1 has been linked to various agerelated diseases,although its relationship with physical activity(PA)remains ***,the apolipoprotein A-I(apoA-I),a PA-modulated lipoprotein,could play a role in this relationship because it shares a binding site with IF1 on the cell-surface ATP *** examined here the associations between chronic PA and plasma IF1 concentrations among older adults,and we investigated whether apoA-I mediated these ***:In the present work,1096 healthy adults(63.8%females)aged 70 years and over who were involved in the Multidomain Alzheimer Prevention Trial study were ***1 plasma concentrations(square root of ng/mL)were measured at the 1-year visit of the Multidomain Alzheimer Prevention Trial,while PA levels(square root of metabolic equivalent task min/week)were assessed using questionnaires administered each year from baseline to the 3-year *** linear regressions were performed to investigate the associations between the first-year mean PA levels and IF1 *** analyses were conducted to examine whether apoA-I mediated these *** linear regressions were carried out to investigate whether the 1-year visit IF1 concentrations predicted subsequent changes in ***:Multiple linear regressions indicated that first-year mean PA levels were positively associated with IF1 concentrations(B=0.021;SE=0.010;p=0.043).Mediation analyses revealed that about 37.7%of this relationship was mediated by apoA-I(B_(ab)=0.008;SE=0.004;p=0.023).Longitudinal investigations demonstrated that higher concentrations of IF1 at the 1-year visit predicted a faster decline in PA levels over the subsequent 2 years(time×IF1:B=0.148;SE=0.066;p=0.025).Conclusion:This study demonstrates that regular PA is associated with plasma IF1 concentrations,and it suggests that apoA-I partly med

关键词： Aging Apolipoprotein Bioenergetics Exerkine Mitochondria

维普期刊数据库

Complications of Corticosteroid Therapy in Rheumatological Practice in Guinea

在线全文

学校读者我要写书评

暂无评论

open Journal of Rheumatology and Autoimmune Diseases 2024年第3期14卷 108-117页

作者： Aly Badra Kamissoko Eve Urielle Amenan Ledjou Mamadou Lamine Diallo abèni Faouzyath Yaya Mohamed Mouhoudhoiri Yasser aboubacar Sidiki Condé Souleymane Camara Marie Traoré ab.oulaye Barry Moriba Touré Kaba Condé owonayo oniankitan Department of Rheumatology Ignace Deen University Hospital Conakry Guinea Department of Rheumatology Cocody University Hospital Abidjan Cte dIvoire Department of Rheumatology Sylvanus Olympio University Hospital Lom Togo

Introduction: Corticosteroid therapy used in rheumatology is effective but can lead to complications. The objective was to describe the complications of corticosteroid therapy in rheumatological practice at Ignace Deen University Hospital (Conakry). Methods: Cross-sectional study from July 1, 2022 to March 31, 2023. All patients who had been diagnosed with a rheumatological disease and who had received corticosteroid therapy were included. Results: of the 1489 patients suffering from rheumatological diseases, 238 (15.9%) had received corticosteroid therapy. The average age of the patients was 48.5 ± 17.16 years with a female predominance (70.5%). The main indications for corticosteroid therapy were lower back pain due to probable disco-radicular impingement (35.8%) followed by rheumatoid arthritis (21.9%). The predominant method of administration was infiltration (56.9%). The average dosage was 24.2 ± 13.5 mg prednisone equivalent (range: 5 mg and 40 mg). Complications were present in 26 patients (10.9%) such as muscle cramps (3.8%), hypocalcemia (3.4%), edema of the lower limbs (3%), stimulation of appetite and weight gain (3%), high blood pressure (2.5%), hyperglycemia (2.5%). The occurrence of complications was associated with the high dose of corticosteroid (p = 0.014) and long-term use (p = 0.000). Conclusion: Corticosteroid therapy used in 15.9% of consultations in the rheumatology department of Ignace Deen University Hospital led to 10.9% of complications. These complications were related to the dose and duration of corticosteroid therapy.

关键词： Corticosteroids Complications Guinea

How completely are randomized controlled trials of non-pharmacological interventions following concussion reported? A systematic 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

Journal of Sport and Health Science 2024年第4期13卷 537-547页

作者： Jacqueline Josee van Ierssel olivia Galea Kirsten Holte Caroline Luszawski Elizabeth Jenkins Jennifer o’Neil Carolyn A Emery Rebekah Mannix Kathryn Schneider Keith owen Yeates Roger Zemek Children’s Hospital of Eastern ontario Research Institute OttawaON K1H 8L1Canada The Centre for Health Activity and Rehabilitation ResearchUniversity of OtagoDunedin 9016New Zealand Sport Injury Prevention Research Centre Faculty of KinesiologyUniversity of CalgaryCalgaryAB T2N 1N4Canada Alberta Children’s Hospital Research Institute University of Calgary CalgaryAB T2N 1N4Canada Hotchkiss Brain Institute University of CalgaryCalgaryAB T2N 4N1Canada Department of Psychology University of CalgaryCalgaryAB T2N 1N4Canada g Faculty of MedicineUniversity of OttawaOttawaON K1H 8M5Canada School of Rehabilitation Sciences University of OttawaOttawaON K1H 8M5Canada Bruyere Research Institute OttawaON K1N 5C8Canada Departments of Pediatrics and Emergency Medicine Harvard Medical SchoolBostonMA 02115USA Departments of Pediatrics and Emergency Medicine University of OttawaOttawaON K1H 8M5Canada

Purpose:The study aimed to examine the reporting completeness of randomized controlled trials(RCTs)of non-pharmacological interventions following ***:We searched MEDLINE,Embase,PsycInfo,CINAHL,and Web of Science up to May *** reviewers independently screened studies and assessed reporting completeness using the Template for Intervention Description and Replication(TIDieR),Consensus on Exercise Reporting Template(CERT),and international Consensus on Therapeutic Exercise aNd Training(i-CoNTENT)*** information was sought my study authors where reporting was *** of bias(RoB)was assessed with the Cochrane RoB-2 *** examining non-pharmacological interventions following ***:We included 89 RCTs(n=53 high RoB)examining 11 different interventions for concussion:sub-symptom threshold aerobic exercise,cervicovestibular therapy,physical/cognitive rest,vision therapy,education,psychotherapy,hyperbaric oxygen therapy,transcranial magnetic stimulation,blue light therapy,osteopathic manipulation,and head/neck *** scores were:TIDieR 9/12(75%;interquartile range(IQR)=5;range:5-12),CERT 17/19(89%;IQR=2;range:10-19),and i-CoNTENT 6/7(86%;IQR=1;range:5-7).Percentage of studies completely reporting all items was TIDieR 35%(31/89),CERT 24%(5/21),and i-CoNTENT 10%(2/21).Studies were more completely reported after publication of TIDieR(t_(87)=2.08;p=0.04)and CERT(t_(19)=2.72;p=0.01).Reporting completeness was not strongly associated with journal impact factor(TIDieR:rs=0.27;p=0.01;CERT:r_(s)=-0.44;p=0.06;i-CoNTENT:r_(s)=-0.17;p=0.48)or RoB(TIDieR:rs=0.11;p=0.31;CERT:rs=0.04;p=0.86;i-CoNTENT:rs=0.12;p=0.60).Conclusion:RCTs of non-pharmacological interventions following concussion demonstrate moderate to good reporting completeness,but are often missing key components,particularly modifications,motivational strategies,and qualified *** completeness improved after TIDieR and CERT publication,but p

关键词： Concussion Intervention Randomized controlled trial Systematic review

维普期刊数据库

Role of malaria induced oxidative stress on anaemia in pregnancy

在线全文

学校读者我要写书评

暂无评论

Asian Pacific Journal of Tropical Medicine 2010年第3期3卷 211-214页

作者： Akanbi oM odaibo ab.olatoregun R Ademowo ab Department of Environmental Biology and Fisheries Faculty of ScienceAdekunle Ajasin University Department of Zoology Parasitology UnitUniversity of Ibadan Institute of Advanced Medical Research and Training College of MedicineUniversity of Ibadan

objective:To assess the role of oxidative stress on anaemia in ***:Blood samples were collected from pregnant and non-pregnant women who came for antenatal clinic and medical check at Comprehensive Health Center,Akungba-Akoko and Iwaro General Hospital in Akoko Area of ondo State,*** and thin blood films were prepared and used for malaria parasite *** level was determined by colorimetric method using Drabkin’s *** status was determined using malondiadelhyde level as an indicator of lipid peroxidation,while ascorbic acid and reduced glutathione levels were measured by standard spectrophotometric ***:Mean parasite density was significantly higher in pregnant women than non-pregnant women(Poglobin level was significantly reduced in malaria positive pregnant and non-pregnant women than malaria negative(8.3-10.0 g/dL)(Poxidative status indicated that malondialdehyde(MDA) was significantly increased in pregnant[(2.5±0.7) nmol/mL]than non-pregnant women[(1.8±0.1) nmol/mL] (Poxide dismutase(SoD) levels were significantly reduced in pregnant than non-pregnant women(Porrelation between Hb and MDA levels in pregnant women *** correlation was observed between the mean MDA level and parasite density(r = 0.53).The Hb level decreased as the parasite density and MDA level increased in pregnant ***:This study shows that oxidative stress, caused by malaria infection could be part of the contributing factors responsible for anaemia in pregnancy.

关键词： Pregnancy Anaemia oxidative stress Malaria Primigravidae Malondialdehyde(MDA) Superoxide dismutase(SoD)

Physiotherapy Management of Rheumatic Diseases

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

open Journal of Rheumatology and Autoimmune Diseases 2024年第1期14卷 37-47页

作者： Aly Badra Kamissoko ab.oulaye Barry Mamadou Lamine Diallo Boutros Cosme Nato abdel Amide Gbadamassi Marie Traore abèni Faouzyath Yaya Facely Traore Paul Eloundou Sory Diane Matènè Komara Halimatou Barry Moriba Toure Moriba Toure Kaba Conde owonayo oniankitan Department of Rheumatology Ignace Deen University Hospital Conakry Guinea Department of Rheumatology Sylvanus Olympio University Hospital Lome Togo Faculty of Medicine and Pharmaceutical Sciences University of Douala Douala Cameroon

Introduction: Physiotherapy is an integral part of the non-drug treatment strategy for rheumatological conditions. The evidence for its effects is not formal. The objective was to evaluate the impact of physiotherapy in the management of rheumatological disorders. Methods: 6-month case-control study (December 15, 2021 to June 20, 2022) at Ignace Deen University Hospital (Conakry). Patients with rheumatological disease who received drug therapy and physiotherapy were included in the case group. Age- and sex-matched controls had rheumatological conditions, treated without physiotherapy. The evaluation questionnaires were used: WoMAC (osteoarthritis), EIFEL (low back pain), NDI (neck pain), SPADI (shoulder). Patients with heart failure, respiratory failure and/or skin infection were not included. Results: We collected 773 patients (389 cases and 384 controls) with a mean age of 53.8 years ± 12.2 with female predominance (56.8%). Patients were mainly followed for osteoarthritis (65.2%). Rheumatological conditions managed were knee-based (119;30.6%), lumbar spine (220;56.6%), shoulders (27;6.9%) and cervical spine (23;5.9%). For an average duration of 53.4 ± 12.2 minutes per session, patients had benefited from a median of 19 physiotherapy sessions. After 3 months, the baseline mean VAS of 6/10 improved to 2.2 ± 1.6 for cases and 5.7 ± 1.2 for controls. Functional capacity was improved (WoMAC: 41.8 ± 22.7 vs. 18.3 ± 7.3). The satisfaction of patients treated with physiotherapy was 20 times higher than in controls. Conclusion: Physiotherapy performed in the management of rheumatological conditions significantly reduced pain and improved functional capacity.

关键词： Rheumatological Disease Physiotherapy WoMAC Guinea

A comparison of electromigration failure of metal lines with fracture mechanics

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Acta Mechanica Sinica 2012年第3期28卷 774-781页

作者： Hiroyuki abé Mikio Muraoka Kazuhiko Sasagawa Masumi Saka Tohoku University Sendai 980-8579Japan Department of Mechanical Engineering Akita UniversityTegatagakuen-machi 1-1Akita 010-8502Japan Department of Intelligent Machines and System Engineering Hirosaki UniversityBunkyo-cho 3Hirosaki 036-8561Japan Department of Nanomechanics Tohoku UniversityAoba 6-6-01AramakiAoba-kuSendai 980-8579Japan

Atoms constructing an interconnecting metal line in a semiconductor device are transported by electron flow in high density. This phenomenon is called electromigration, which may cause the line failure. In order to characterize the electromigration failure, a comparison study is carded out with some typical phenomena treated by fracture mechanics for thin and large structures. An example of thin structures, which have been treated by fracture mechanics, is silica opti- cal fibers for communication systems. The damage growth in a metal line by electromigration is characterized in compar- ison with the crack growth in a silica optical fiber subjected to static fatigue. Also a brief comparison is made between the electromigration failure and some fracture phenomena in large structures.

关键词： Electromigration failure. Interconnecting line Comparison Fracture mechanics

维普期刊数据库