检索结果-南通市图书馆

Numerical Analysis of Bacterial Meningitis Stochastic Delayed epidemic Model through Computational Methods

Computer Modeling in engineering & Scie.ce. 2024年第10期141卷 311-329页

作者： Umar Shafique mohamed Mahyoub Al-Shamiri Ali Raza emad Fadhal Muhammad Rafiq Nauman Ahmed Department of Mathematics National College of Business Administration and EconomicsLahore54660Pakistan Department of Mathematics Applied CollegeMahayl AssirKing Khalid UniversityAbha62529Saudi Arabia Department of physical Scie.ce. The University of ChenabGujrat50700Pakistan Department of Mathematics&Statistics College of ScienceKing Faisal UniversityP.O.Box 400Al-Ahsa31982Saudi Arabia Department of Computer Scie.ce.and Mathematics Lebanese American UniversityBeirut1102-2801Lebanon Department of Mathematics Faculty of Science and TechnologyUniversity of Central PunjabLahore54000Pakistan Department of Mathematics and Statistics University of LahoreLahore54000Pakistan

Based on theWorld Health Organization(WHO),Meningitis is a severe infection of the meninges,the membranes covering the brain and spinal *** is a devastating disease and remains a significant public health *** study investigates a bacterial meningitis model through deterministic and stochastic ***-compartment population dynamics explain the concept,particularly the susceptible population,carrier,infected,and *** model predicts the nonnegative equilibrium points and reproduction number,i.e.,the Meningitis-Free equilibrium(MFe),and Meningitis-existing equilibrium(Mee).For the stochastic version of the existing deterministicmodel,the twomethodologies studied are transition probabilities and non-parametric ***,positivity,boundedness,extinction,and disease persiste.ce.are studiedrigorouslywiththe helpofwell-known *** and nonstandard techniques such as eulerMaruyama,stochastic euler,stochastic Runge Kutta,and stochastic nonstandard finite differe.ce.in the sense of delay have been presented for computational analysis of the stochastic ***,standard methods fail to restore the biological properties of the model,so the stochastic nonstandard finite differe.ce.approximation is offered as an efficient,low-cost,and independent of time step *** addition,the converge.ce.local,and global stability around the equilibria of the nonstandard computational method is studied by assuming the perturbation effect is *** simulations and comparison of the methods are presented to support the theoretical results and for the best visualization of results.

关键词： Bacterial Meningitis disease stochastic delayed model stability analysis extinction and persistence computational methods

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Comparative analysis of microstructure,mechanical,and corrosion properties of biodegradable Mg-3Y alloy prepared by selective laser melting and spark plasma sintering

引用

Journal of Magnesium and Alloys 2024年第4期12卷 1496-1510页

作者： p.minárik M.Zemková S.Šašek J.Dittrich M.Knapek F.Lukáˇc D.Koutný J.Jaroš R.Král Faculty of Mathematics and physics Charles UniversityKe Karlovu 5Praha 12116Czech Republic Research centre University ofŽilinaUniverzitná8215/1Žilina 01026Slovakia Institute of plasma physics of the Czech Academy of Scie.ce. Za Slovankou 1782/318200 Praha 8Czech Republic Institute of Machine and Industrial Design Brno University of TechnologyTechnická2896/2Brno 61669Czech Republic

This work explored possibilities of biodegradable magnesium alloy Mg-3Y preparation by two modern powder metallurgy techniques–spark plasma sintering(SpS)and selective laser melting(SLM).The powder material was consolidated by both methods utilising optimised parameters,which led to very low porosity(∼0.3%)in the SLM material and unmeasurably low porosity in the SpS *** main aim of the study was the thorough microstructure characterisation and interrelation between the microstructure and the functional properties,such as mechanical strength,deformability,and corrosion *** materials showed comparable strength of∼110 Mpa in tension and compression and relatively good deformability of∼9%and∼21%for the SLM and SpS materials,*** corrosion resistance of the SpS material in 0.1 M NaCl solution was superior to the SLM one and comparable to the conventional extruded *** digital image correlation during loading and the cross-section analysis of the corrosion layers revealed that the residual porosity and large strained grains have the dominant negative effect on the functional properties of the SLM *** the other hand,one of the primary outcomes of this study is that the SpS consolidation method is very effective in the preparation of the W3 biodegradable alloy,resulting in material with convenient mechanical and degradation properties that might find practical applications.

关键词： Magnesium Yttrium powder metallurgy Microstructure Mechanical strength Corrosion resistance

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

prediction of Geopolymer Concrete Compressive Strength Using Convolutional Neural Networks

引用

Computer Modeling in engineering & Scie.ce. 2024年第5期139卷 1455-1486页

作者： Kolli Ramujee pooja Sadula Golla Madhu Sandeep Kautish Abdulaziz S.Almazyad Guojiang Xiong Ali Wagdy mohamed Department of Civil engineering VNR Vignana Jyothi Institute of Engineering and TechnologyHyderabadTelangana500090India Department of Information Technology VNR Vignana Jyothi Institute of Engineering and TechnologyHyderabadTelangana500090India Department of Computer Science LBEF Campus(Asia Pacific University of Technology&InnovationMalaysia)Kathmandu44600Nepal Department of Computer engineering College of Computer and Information SciencesKing Saud UniversityP.O.Box 51178Riyadh11543Saudi Arabia Guizhou Key Laboratory of Intelligent Technology in power System College of Electrical EngineeringGuizhou UniversityGuiyang550025China Operations Research Department Faculty of Graduate Studies for Statistical ResearchCairo UniversityGiza12613Egypt Applied Scie.ce.Research center Applied Science Private UniversityAmmanJordan

Geopolymer concrete emerges as a promising avenue for sustainable development and offers an effective solution to environmental *** attributes as a non-toxic,low-carbon,and economical substitute for conventional cement concrete,coupled with its elevated compressive strength and reduced shrinkage properties,position it as a pivotal material for diverse applications spanning from architectural structures to transportation *** this context,this study sets out the task of using machine learning(ML)algorithms to increase the accuracy and interpretability of predicting the compressive strength of geopolymer concrete in the civil engineering *** achieve this goal,a new approach using convolutional neural networks(CNNs)has been *** study focuses on creating a comprehensive dataset consisting of compositional and strength parameters of 162 geopolymer concrete mixes,all containing Class F fly *** selection of optimal input parameters is guided by two distinct *** first criterion leverages insights garnered from previous research on the influe.ce.of individual features on compressive *** second criterion scrutinizes the impact of these features within the model’s predictive *** to enhancing the CNN model’s performance is the meticulous determination of the optimal *** a systematic trial-and-error process,the study ascertains the ideal number of epochs for data division and the optimal value of k for k-fold cross-validation—a technique vital to the model’s *** model’s predictive prowess is rigorously assessed via a suite of performance metrics and comprehensive score ***,the model’s adaptability is gauged by integrating a secondary dataset into its predictive framework,facilitating a comparative evaluation against conventional prediction *** unravel the intricacies of the CNN model’s learning trajectory,a loss plot is deployed to elucidate its learning rat

关键词： Class F fly ash compressive strength geopolymer concrete prediction deep learning convolutional neural network

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

effects of soil metal(loid)s pollution on microbial activities and environmental risks in an abandoned chemical smelting site

引用

Journal of environmental Scie.ce. 2024年第9期143卷 60-70页

作者： Hao Li Jun Yao Jianli Liu Ning min Geoffrey Sunahara Dongyang Men Robert Duran School of Water Resources and environment Research Center of Environmental Science and EngineeringChina University of Geosciences(Beijing)Beijing 100083China Department of Natural Resource Scie.ce. McGill University21111Lakeshore DriveSte-Anne-de-BellevueQuebecH9X 3V9Canada equipe environnement et Microbiologie MELODY groupUniversitéde Pau et des Pays de l’AdourE2S-UPPAIPREM UMR CNRS 5254BP 115564013 Pau CedexFrance

Abandoned chemical smelting sites containing toxic substances can seriously threaten and pose a risk to the surrounding ecological *** samples were collected from different depths(0 to 13 m)and analyzed for metal(loid)s content and fractionation,as well as microbial *** potential ecological risk indices for the different soil depths(ordered from high to low)were:1 m(D-1)>surface(S-0)>5 m(D-5)>13 m(D-13)>9 m(D-9),ranging between 1840.65-13,089.62,and representing extremely high environmental risks,of which Cd(and probably not arsenic)contributed to the highest environmental risk.A modified combined pollution risk index(MCR)combining total content and mobile proportion of metal(loid)s,and relative toxicities,was used to evaluate the degree of contamination and potential environmental *** the near-surface samples(S-0 and D-1 layers),the MCR considered that As,Cd,pb,Sb,and Zn achieved high and alarming degrees of contamination,whereas Fe,Mn,and Ti were negligible or low to moderate pollution *** microcalorimetry and enzymatic activity measurements of contaminated soil samples were used to assess the microbial metabolic activity *** analysis elucidated the relationship between metal(loid)s exchangeable fraction or content and microbial activity characteristics(pe microbial metabolic activity in the D-1 layer was low presumably due to heavy metal *** activity indicators and microcalorimetric growth rate(k)measurements were considered sensitive indicators to reflect the soil microbial activities in abandoned chemical smelting sites.

关键词： Abandoned chemical smelting sites Microbial activities Modified combined pollution risk Microcalorimetry enzymatic activities

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Fecal microbiota transplantation:whole grain highland barley improves glucose metabolism by changing gut microbiota

引用

Food Scie.ce.and Human Wellness 2024年第4期13卷 2014-2024页

作者： Xin Ren Fulong Zhang min Zhang Yuan Fang Zenglong Chen Meili Huan Beijing Advanced Innovation center for Food Nutrition and Human Health Beijing Engineering and Technology Research Center of Food AdditivesNational Grain Industry Highland Barley Deep Processing Technology Innovation CenterBeijing Technology and Business UniversityBeijing 100048China State Key Laboratory of Integrated Management of pest Insects and Rodents Institute of ZoologyChinese Academy of SciencesBeijing 100101China COFCO Nutrition and Health Research Institute Beijing 102209China

Highland barley(HB)is a high-altitude.ce.eal with rich nutritional components and potential health *** clarify its hypoglycemic effect and mechanism,we investigated the effect of whole grain HB and fecal microbiota transplantation(FMT)on glucose metabolism and gut microbiota in high-fat diet and streptozotocin(HFD/STZ)-induced diabetic *** results showed that HB(40%)significantly decreased fasting blood glucose and the area under the glucose tolerance curve,significantly increased insulin secretion and improved insulin resistance in HFD/STZ-induced diabetic mice(ppid indices were also significantly alleviated after 12 weeks of 40%HB intervention(peneficial bacteria,such as Bifidobacterium and Akkermansia,were significantly enriched in the gut of diabetic mice after whole grain HB ***,the results of further FMT experiments verified that the fecal microbiota after the 40%HB intervention not only significantly increased the relative abundance of Bifidobacterium and Akkermansia but also effectively improved glucose metabolism and alleviated the inflammatory state in HFD/STZ-induced diabetic ***,our study confirmed the bridge role of gut microbiota in improving glucose metabolism of whole grain HB,which could promote the development of precision nutrition.

关键词： Highland barley Diabetes Glucose metabolism Gut microbiota Fecal bacteria transplantation

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

On the Waring-Goldbach problem for one cube and nine biquadrates

引用

Frontiers of Mathematics in China 2024年第4期19卷 229-246页

作者： Jinjiang LI min ZHANG School of Science China University of Mining and Technology(Beijing)Beijing 100083China School of Applied Science Beijing Information Science and Technology UniversityBeijing 100192China

Let N be a sufficiently large *** this paper,it is proved that with at most O(N17/18+ε)e.ce.tions,all positive integers satisfying some necessary congrue.ce.conditions up to N can be represented in the form p_(1)^(3)+p_(2)^(4)+p_(3)^(4)+p_(5)^(4)+p_(6)^(4)+p_(7)^(4)+p_(8)^(4)+p_(9)^(4)+p_(10)^(4),where p1,p2,…,p_(10)are prime numbers.

关键词： Waring-Goldbach problem Hardy-Littlewood method e.ce.tional set

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Novel energy recovery from an integrated municipal solid waste and leachate treatment system

引用

Waste Disposal and Sustainable energy 2024年第1期6卷 53-61页

作者： Siti Salwa Khamis Hadi purwanto Hamzah Mohd Salleh Alya Naili Rozhan mohamed Abdur Rahman Mahammadsalman Warimani Noor Alam Faculty of engineering International Islamic University MalaysiaJalan Gombak53100Kuala LumpurMalaysia Department of engineering Management Universitas Internasional Semen IndonesiaGresikIndonesia Halalan Thayyiban Research centre Sultan Sharif Ali Islamic UniversityBandar Seri BegawanBrunei Department of Mechanical engineering P.A.College of EngineeringMangaloreKarnataka574153India Department of Mechanical engineering Malaysia-Japan International Institute of TechnologyUniversity of Technology Malaysia54100Kuala LumpurMalaysia

population growth,waste generation,and massive waste mismanagement have led to environmental *** of municipal solid waste(MSW)requires an efficient and sustainable integrated *** integrated thermal processing of MSW is one of the best waste management *** this study,energy analysis of MSW is carried out based on the material and energy balance of 2000 kg wet MSW,which contains 50%*** the leachate is removed,the dry MSW is sent for carbon content enhancement in carbonization to produce MSW-based ***,the combustion of MSW-based char provided high heat and syngas to be used in a hydrothermal process for MSW leachate *** result shows that the char fuel of MSW produces a sufficient amount of energy,13501.29 MJ(84.55%),in the form of synthetic gas by-product,which has a big potential as an energy *** novelty of the proposed integrated thermal system is to produce 84.55%synthetic gas by-product,which is used for electricity production,cooking,food,and heat energy for industrial *** proposed applications of this paper offer insightful information for policymaking regarding novel MSW techniques,which are economical,energy-efficient,and environmentally ***,it increases the effectiveness of MSW utilization.

关键词： energy Carbonization Hydrothermal Municipal solid waste Integrated system

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

establishing delivery route-dependent safety and efficacy of living biodrug mesenchymal stem cells in heart failure patients

引用

World Journal of Cardiology 2024年第6期16卷 339-354页

作者： Muhammad Candragupta Jihwaprani Idris Sula mohamed Ahmed Charbat Khawaja Husnain Haider Basic Scie.ce. SRCAl Bukayriyah 52736AlQaseemSaudi Arabia

BACKGROUND Mesenchymal stem cells(MSCs)as living biopharmaceuticals with unique properties,i.e.,stemness,viability,phenotypes,paracrine activity,etc.,need to be administered such that they reach the target site,maintaining these properties unchanged and are retained at the injury site to participate in the repair *** of delivery(RoD)remains one of the critical determinants of safety and *** study elucidates the safety and effectiveness of different RoDs of MSC treatment in heart failure(HF)based on phase II randomized clinical trials(RCTs).We hypothesize that the RoD modulates the safety and efficacy of MSCbased therapy and determines the outcome of the *** To investigate the effect of RoD of MSCs on safety and efficacy in HF *** RCTs were retrieved from six *** endpoints included mortality and serious adverse events(SAes),while efficacy outcomes encompassed changes in left ventricular ejection fraction(LVeF),6-minute walk distance(6MWD),and pro-B-type natriuretic peptide(pro-BNp).Subgroup analyses on RoD were performed for all study *** Twelve RCTs were ***,MSC therapy demonstrated a significant decrease in mortality[relative risk(RR):0.55,95%confide.ce.interval(95%CI):0.33-0.92,p=0.02]compared to control,while SAe outcomes showed no significant differe.ce.RR:0.84,95%CI:0.66-1.05,p=0.11).RoD subgroup analysis revealed a significant differe.ce.in SAe among the transendocardial(TeSI)injection subgroup(RR=0.71,95%CI:0.54-0.95,p=0.04).The pooled weighted mean differe.ce.WMD)demonstrated an overall significant improvement of LVeF by 2.44%(WMD:2.44%,95%CI:0.80-4.29,p value≤0.001),with only intracoronary(IC)subgroup showing significant improvement(WMD:7.26%,95%CI:5.61-8.92,p≤0.001).Furthermore,the IC delivery route significantly improved 6MWD by 115 m(WMD=114.99 m,95%CI:91.48-138.50),*** biochemical efficacy outcomes,only the IC subgroup showed a significant reduction in pro-

关键词： Clinical trial Heart failure Mesenchymal stem cells Living biodrug Meta-analysis Stem cells Systematic review

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Does wet-cupping therapy improve repeated sprint ability,pe.ce.ved wellness,and rating of pe.ce.ved exertion in young active males?

引用

Sports Medicine and Health Science 2024年第4期6卷 378-384页

作者： Ismail Dergaa Amine Ghram mohamed Romdhani Amine Souissi Achraf Ammar Ramadan abde.moez Farahat mohamed Saifeddin Fessi Khadijeh Irandoust Morteza Taheri Tasnim Masmoudi mohamed Amine Dergaa Nizar Souissi Omar Hammouda Katja Weiss Karim Chamari Helmi Ben Saad Beat Knechtle primary Health Care Corporation(pHCC) DohaP.O.Box 26555Qatar Research Unit physical Activity Sportand HealthUR18JS01National Observatory of SportTunis 1003Tunisia High Institute of Sport and physical education University of SfaxSfaxTunisia Department of Cardiac Rehabilitation Heart HospitalHamad Medical CorporationDohaQatar Universite de Sousse Faculte de Medecine de SousseHopital Farhat HACHEDLaboratoire de Recherche(Insuffisance CardiaqueLR12SP09)SousseTunisia Healthy Living for pandemic event protection(HL-pIVOT)Network ChicagoILUSA Interdisciplinary Laboratory in Neuroscie.ce. Physiology and Psychology:Physical ActivityHealth and LearningUFR STAPSUPLParis Nanterre UniversityNanterreFrance Department of Training and Movement Science Institute of Sport ScienceJohannes Gutenberg-University Mainz55128 MainzGermany Research Laboratory Molecular Bases of Human PathologyLR19ES13Faculty of Medicine of SfaxUniversity of SfaxSfax 3029Tunisia Faculty of Medicine Kafrelsheikh UniversityKafrelsheikh33511Egypt Department of Behavioral and Cognitive Scie.ce. in Sport Faculty of Sport Sciences and HealthUniversity of TehranIran University of Sousse Farhat HACHED HospitalForensic ServiceSousseTunisia Medbase St.Gallen Am Vadianplatz St.GallenSwitzerland Aspetar Orthopaedic and Sports Medicine HospitalFIFA Medical Centre of ExcellenceDohaP.O.Box 29222Qatar Institute of primary Care University of ZurichZurichSwitzerland

Wet-cupping therapy(WCT)is one of the oldest known medical techniques,used as a traditional and complementary therapy with a wide application all around the world for general *** on the effects of WCT on sports performance are sparse and ***,we aimed to explore the effects of WCT on repeated sprint ability,wellness,and exertion in young active ***-nine active adult males(age:[28±5]years;body height[177±8]cm;body mass:[79±7]kg;body mass index:[25.4±1.8]kg/m^(2))were selected for the *** participants performed a running-based sprint test on two separate occasions(Control and post-WCT).WCT was performed 24 h before the testing *** completed the Hooper questionnaire to assess their well-being(i.e.,sleep,stress,fatigue,and soreness)before each *** rating of pe.ce.ved exertion(Rpe)was collected after each testing session.A higher maximum power(peffect size[eS]=0.6),mean power(peS=0.5)and minimum power(peS=0.6)were recorded post-WCT as compared to Control session along with a better pe.ce.ved sleep(peS=0.85).pe.ce.ved stress(peS=0.6)and Rpe(peS=1.1)were lower during the post-WCT compared to the Control *** present findings demonstrated that WCT moderately enhanced repeated sprint ability and had positive effects on pe.ce.ved sleep,stress,and *** may be an effective ergogenic aid to improve repeated sprint ability and general wellbeing in young adult *** large-scale multicentric clinical studies are paramount to confirm the results of our study.

关键词： Alternative medicine Complementary medicine Hijama Short-term maximal performance Sports medicine

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Clinical effect of spleen aminopeptide on improving liver function damage and immune function in children with infant hepatitis syndrome

引用

World Journal of Gastrointestinal Surgery 2024年第6期16卷 1742-1748页

作者： Xiao-Qing Fang Tian Gan Lie-min Wang Department of pediatrics General Hospital of Central Theater Command of PLAWuhan 430061Hubei ProvinceChina Department of pharmacy The First People’s Hospital of Jiangxia DistrictWuhan 430200Hubei ProvinceChina Department of Neonatal Central Hospital of EnshiEnshi 445000Hubei ProvinceChina

BACKGROUND Infant hepatitis syndrome(IHS)is a clinical syndrome in infants less than one year of age with generalized skin jaundice,abnormal liver function,and hepato-megaly due to various etiologies such as *** To investigate the effect of IHS patients,after treatment with arsphenamine-based peptides,on patients'liver function damage and immune *** Of 110 patients with IHS treated in our hospital from January 2019 to January 2021 were grouped according to the randomized residual grouping method,with 5 cases in each group shed due to transfer,***,50 cases remained in each *** control group was treated with reduced glutathione,and the treat-ment group was treated with sesquiterpene peptide based on the control *** and compare the differe.ce. in indicators after *** The comparison of serum total bilirubin,direct bilirubin,and serum alanine transferase after treatment was significantly different and lower in the treatment group than in the control group(pe comparison of CD4+,CD3+,CD4+/CD8+after treatment was significantly different and higher in the treatment group than in the control group,and the comparison was statist-ically significant(pe complication of the two groups showed that the rash,cough and sputum,elevated platelets,and gastrointestinal reactions in the treatment group were significantly lower than those in the control group,and the differe.ce. were statistically significant by test(pe comparative study of IHS treated with arsphenamine combined with reduced glutathione is more effective.

关键词： Infant hepatitis syndrome Splenamin Reduced glutathione Liver function Immune function Complication

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：