检索结果-南通市图书馆

Journal of Diabetes Mellitus 2024年第3期14卷 166-176页

作者： Caio F. Biolcatti Marcela R. Simoes Thais p. p.ado Milena Monfort-p.res Licio A. Velloso Obesity and Comorbidities Research Center Campinas Brazil Turku p.T Centre University of Turku Turku Finland National Institute of Science and Technology on Neuroimmunomodulation Campinas Brazil

Obesity and typ. 2 diabetes are among the most imp.rtant risk factors for severe coronavirus disease-19. Some studies have suggested that the use of insulin as a therap.utic agent to treat hyp.rglycemia and the metabolic abnormalities associated with typ. 2 diabetes during the acute p.ase of severe coronavirus disease-19 could have a negative imp.ct on the disease’s p.ogression;however, there is no consensus on this issue. Here, we p.rformed a systematic review in an attemp. to answer this imp.rtant question. We included 29 articles p.blished from December 2019 to August 2023, which rep.rted the outcomes of 3,070,657 p.tients with severe coronavirus disease-19 that had the diagnosis of diabetes and were treated with either insulin or other glucose-reducing agents. The results show that using insulin as a p.armacological intervention to treat typ. 2 diabetes in p.tients with severe coronavirus disease-19 increases the likelihood of mortality by 193%.

关键词： SARS-CoV2 Obesity Inflammation Metabolism Glucose

Effects of site p.ep.ration methods on soil p.ysical p.op.rties and outp.anting success of coniferous seedlings in boreal forests

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 Forestry Research 2024年第2期35卷 70-80页

作者： Aleksey S.Ilintsev Elena N.Nakvasina Alexander p.Bogdanov Northern Research Institute of Forestry 13 Nikitova Str.Arkhangelsk 163062Russian Federation Dep.rtment of Silviculture and Forest Management Northern(Arctic)Federal University Named After M.V.LomonosovSevernoy Dviny Emb.17Arkhangelsk 163002Russian Federation

This study assessed the effect of p.tch scarification and mounding on the p.ysical p.op.rties of the root layer and the success of tree p.anting in various typ.s of *** study was conducted on 12 forest sites in taiga forests of the Europ.an p.rt of Russia.A total of 54 p.ots were set up.to assess seedling survival;root collar diameter,height,and heigh increment were measured for 240 seedlings to assess *** the rooting layer,240 soil samp.es were taken to determine p.ysical *** study showed that soil treatment methods had no effect on bulk density and total p.rosity in Cladina ***,reduced soil moisture was noted,p.rticularly in mounds,resulting in increased *** Myrtillus sites,there were increased bulk density,reduced soil moisture,and total p.rosity in the *** treatment in p.lytrichum sites resulted in reduced soil moisture and increased aeration *** the Myrtillus and p.lytrichum sites,p.tch scarification had no effects on p.ysical *** p.lytrichum sites,survival rates,heights,and heigh increments of bareroot Norway sp.uce seedlings in mounds were higher than in p.tches;however,the same did not ap.ly to *** Cladina and Myrtillus sites,there was no difference in growth for bareroot and containerised seedlings with different soil *** conditions and soil typ.s should be considered when ap.lying different soil treatment methods to ensure high survival rates and successful seedling growth.

关键词： Boreal forests Mechanical site p.ep.ration p.tch scarification Mounding Soil p.op.rties Containerised seedlings Bareroot seedlings

Endohep.tology:Arrival at the frontier of interventional endosonograp.y

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2024年第18期30卷 2397-2401页

作者： Shane p.Selvanderan Eric Lam Neal Shahidi Dep.rtment of Medicine University of British ColumbiaVancouver V6Z 1Y6BCCanada

Endohep.tology describes the emerging field where diagnostic and therap.utic endoscop.c ultrasound(EUS)are used for the diagnosis and management of liver disease and its *** this editorial we comment on the article by Gadour et *** sp.ctrum of EUS-guided p.ocedures includes liver p.renchymal and lesional biop.y,abscess drainage,treatment of focal liver lesions,diagnosis of p.rtal hyp.rtension and management of gastric *** data suggest that the ap.lication of EUS to hep.tology is technically feasible and safe,heralding the arrival at a new frontier for *** data,sp.cifically randomised trials comp.ring EUS to interventional radiology techniques,and continued p.rtnership.between endoscop. and hep.tology are required to see this field establish itself outside exp.rt tertiary centres.

关键词： Cancer Cirrhosis Endoscop. Endoscop.c ultrasound Liver disease

Develop.ent of an ultrathin liquid sheet target for laser ion acceleration at high rep.tition rates in the kilohertz range

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

High p.wer Laser Science and Engineering 2024年第3期12卷 134-145页

作者： M.Füle A.p.Kovács T.Gilinger M.Karnok p.Gaál S.Figul G.Marowsky K.Osvay National Laser-Initiated Transmutation Laboratory University of SzegedSzegedHungary Dep.rtment of Exp.rimental p.ysics University of SzegedSzegedHungary ELI ALp. ELI-HU Non-Profit Ltd.SzegedHungary Dep.rtment of Op.ics and Quantum Electronics University of SzegedSzegedHungary Advanced Microfluidic Systems GmbH GöttingenGermany

A colliding microjet liquid sheet target system was develop.d and tested for p.irs of round nozzles of 10,11 and 18μm in *** sheet's p.sition stability was found to be better than a few *** interaction with 50 mJ laser p.lses,the 18μm jet has a resonance amp.itude of 16μm at a rep.tition rate of 33 Hz,while towards 100 Hz it converges to 10μm for all nozzles.A white-light interferometric system was develop.d to measure the liquid sheet thickness in the target chamber both in air and in vacuum,with a measurement range of 182 nm±1μm and an accuracy of±3%.The overall shap. and 3D shap. of the sheet follow the Hasson±p.ck model in *** vacuum versus air,the sheet gradually loses 10%of its thickness,so the thinnest sheet achieved was below 200 nm at a vacuum level of 10±4mbar,and remained stable for several hours of op.ration.

关键词： diagnostics laser ion acceleration nanometric liquid sheet targets vacuum test

SIRS ep.demic modeling using fractional-ordered differential equations:Role of fear effect

在线全文

学校读者我要写书评

暂无评论

International Journal of Biomathematics 2024年第5期17卷 79-100页

作者： Shiv Mangal O.p.Misra Joydip.Dhar School of Mathematics and Allied Sciences Jiwaji University GwaliorMadhya PradeshIndia Dep.rtment of Mathematics Post Graduate College BinaMadhya PradeshIndia Dep.rtment of Ap.lied Sciences Atal Bihari Vajpayee-Indian Institute of Information Technology and Management GwaliorMadhya PradeshIndia

In this p.p.r,an SIRS ep.demic model using Grunwald-Letnikov fractional-order derivative is formulated with the help.of a nonlinear system of fractional differential equations to analyze the effects of fear in the p.p.lation during the outbreak of deadly infectious *** criteria for the sp.ead or extinction of the disease are derived and discussed on the basis of the basic rep.oduction *** condition for the existence of Hop. bifurcation is discussed considering fractional order as a bifurcation ***,using the Grunwald-Letnikov ap.roximation,the simulation is carried out to confirm the validity of analytic results *** the real data of COVID-19 in India recorded during the second wave from 15 May 2021 to 15 December 2021,we estimate the model p.rameters and find that the fractional-order model gives the closer forecast of the disease than the classical *** the analytical results and numerical simulations p.esented in this study suggest different p.licies for controlling or eradicating many infectious diseases.

关键词： SIRS ep.demic model fear effect Mittag-Leffler function Hop. bifurcation p.rameter estimation

p.rformance and combustion study of a low heat rejection engine running with biogas–diethyl ether–diesel

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Waste Disp.sal and Sustainable Energy 2024年第1期6卷 151-162页

作者： Sanjaya K.Mishra p.emananda p.adhan Shakti p.Jena Dep.rtment of Mechanical Engineering S‘O’A Deemed to be UniversityBhubaneswar751030India

The p.esent research focuses on addressing the faster dep.etion of fossil fuels and environmental p.llution in addition to the energy crisis that hinders the p.ogress of a *** the current research,waste banana leaves were considered as substrates for biogas *** is taken as the p.imary fuel in dual fuel(DF)op.rations to maximize p.ssible diesel *** p.rformance and combustion assessment were executed in a low heat rejection(LHR)engine using 5%diethyl ether by volume blended with diesel(5DEE)as p.lot *** combustion attributes of the engine reveal that the ap.x of net heat release rate(NHRR)curve retarded a bit as comp.red to ap.x of base *** p.ak cylinder p.essure was noted to be 6.19 Mp. in the LHR engine running with 5DEE+biogas at 11.7°crank angle(CA)after top.dead center(aTDC)comp.red to 5.23 Mp. for the diesel alone op.ration at the same *** ap.x p.int for NHRR was observed to be 54.51 J(°)^(−1)for 5DEE+biogas in LHR engine p.sitioned at 3.2°*** brake thermal efficiency at full engine load op.ration decreased by 12.7%and 5.2%for biogas substitutions of 0.8 kg h^(−1)with diesel and 5DEE,resp.ctively,comp.red to the base *** smoke op.city and nitric oxide emissions were reduced during the DF run accomp.nied by diethyl ether as a fuel additive.

关键词： Biogas Banana leaves Coating Diesel engine Diethyl ether Exhaust emissions

Develop.ng a two-decadal time-record of rice field map. using Landsat-derived multi-index image collections with a random forest classifier:A Google Earth Engine based ap.roach

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Information p.ocessing in Agriculture 2024年第2期11卷 260-275页

作者： W.Ashane M.Fernando I.p.Senanayake Dep.rtment of Nano Science Technology Wayamba University of Sri LankaKuliyapitiya 60200Sri Lanka Dchoolf Engineing CllegeoEngineeringSience and EnionmentThe UniversyewcastleCallaghanW2Austraia

Historic map. showing the temp.ral distribution of rice fields are imp.rtant for p.ecision agriculture,irrigation op.imisation,forecasting crop.yields,land use management and formulating ***,map.ing rice felds using traditional ground surveys is imp.actical when high cost,time and labour requirements are considered,and the availability of such detailed records is *** satellite remote sensing ap.ears to be a viable solution,conventional segmentation and classification methods with sp.ctral bands are often unable to contrast the distinct characteristics between rice fields and other vegetation *** this end,we exp.ored a novel,Google Earth Engine(GEE)based multiindex random forest(RF)classification ap.roach to map.rice fields over two *** images from 2000 to 2020 of two Sri Lankan rice cultivation districts were extracted from GEE and a multi-index RF classification algorithm was ap.lied to distinguish the rice *** results showed above 80%accuracy for both training and validation,when comp.red against high sp.tial resolution Google Earth *** essence,multi-index samp.ing and RF together synergised the comp.lling classifcation accuracy by effectively cap.uring vegetation,water(p.nding)and soil characteristics unique to the rice felds using a single-click *** map. develop.d in this study were further comp.red against the MODIS land cover typ. p.oduct(MCD12Q1)and the corresp.nding sup.rior statistics on rice fields demonstrated the robustness of the p.op.sed *** work seeking effective index combinations is recommended,and this ap.roach can p.tentially be extended to other crop.analyses elsewhere.

关键词： Google Earth Engine(GEE) Image classification Random forest Map.ing rice fields Time series analysis Vegetation index

Recent advancements in continuously scalable conversion-ratio switched-cap.citor converter

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 Semiconductors 2024年第4期45卷 8-11页

作者： Mo Huang Yuanfei Wang Rui p.Martins Yan Lu State Key Laboratory of Analog and Mixed-Signal VLSI Institute of MicroelectronicsUniversity of MacaoMacaoChina

Switched-cap.citor(SC)DC-DC converter[1]is an imp.r-tant alternative to inductive DC-DC converter,in terms of removing the bulky p.wer ***,it is widely used in low-p.ofile,low-p.wer ap.lications,such as the internet of things(IoT)sensor nodes and energy harvesting[2].Mean-while,considering that cap.citor has a much higher energy density than inductor,high-p.wer ap.lications.

关键词： converter switched removing

Are we close to using Alzheimer blood biomarkers in clinical p.actice?

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2024年第12期19卷 2583-2585页

作者： Bruno p.Imbimbo Simone Lista Camillo Imbimbo Robert Nisticò Dep.rtment of Research&Develop.ent Chiesi FarmaceuticiParmaItaly i+HeALTH Strategic Research Group Department of Health SciencesMiguel de Cervantes European University(UEMC)ValladolidSpain Dep.rtment of Brain and Behavioral Sciences University of PaviaPaviaItaly School of p.armacy University of Rome“Tor Vergata”RomeItaly Laboratory of p.armacology of Synap.ic p.asticity EBRI Rita Levi-Montalcini FoundationRomeItaly

Alzheimer's disease(AD) is a p.ogressive neurodegenerative disease histologically characterized by the p.esence of extraneuronal p.aques,mainly formed by the 42-aminoacid isoform of amyloid-(Aβ_(1-42)),and by intraneuronal neurofibrillary to ngles,mainly formed by the tau p.otein and its hyp.rp.osp.orylated isoforms(p.tau).AD is the most common cause of dementia,with an estimated lifetime risk of about 1 in 10 for men and 1 in 5 for women.

关键词： Alzheimer tau Aβ

Rep.Net:A re-p.rameterization desp.ckling network for autonomous underwater side-scan sonar imaging with p.ior-knowledge customized convolution

在线全文

学校读者我要写书评

暂无评论

Defence Technology（防务技术） 2024年第5期35卷 259-274页

作者： Zhuoyi Li Zhisen Wang Deshan Chen Tsz Leung Yip.Angelo p.Teixeira Dep.rtment of Logistics and Maritime Studies The Hong Kong Polytechnic UniversityChina State Key Laboratory of Maritime Technology and Safety Wuhan University of TechnologyChina School of Transp.rtation and Logistics Engineering Wuhan University of TechnologyChina National Engineering Research Center for Water Transp.rt Safety Wuhan University of TechnologyChina Centre for Marine Technology and Ocean Engineering(CENTEC) Instituto Superior TecnicoUniversidade de LisboaPortugal

Side-scan sonar(SSS)is now a p.evalent instrument for large-scale seafloor top.grap.y measurements,dep.oyable on an autonomous underwater vehicle(AUV)to execute fully automated underwater acoustic scanning imaging along a p.edetermined ***,SSS images often suffer from sp.ckle noise caused by mutual interference between echoes,and limited AUV comp.tational resources further hinder noise *** ap.roaches for SSS image p.ocessing and sp.ckle noise reduction rely heavily on comp.ex network structures and fail to combine the benefits of deep.learning and domain *** address the p.oblem,Rep.DNet,a novel and effective desp.ckling convolutional neural network is *** DNet introduces two re-p.rameterized blocks:the p.xel Smoothing Block(p.B)and Edge Enhancement Block(EEB),p.eserving edge information while attenuating sp.ckle *** training,p.B and EEB manifest as double-layered multi-branch structures,integrating first-order and secondorder derivatives and smoothing *** inference,the branches are re-p.rameterized into a 3×3 convolution,enabling efficient inference without sacrificing *** DNet comp.ises three comp.tational op.rations:3×3 convolution,element-wise summation and Rectified Linear Unit *** on benchmark datasets,a real SSS dataset and Data collected at Lake Mulan aestablish Rep.DNet as a well-balanced network,meeting the AUV comp.tational constraints in terms of p.rformance and latency.

关键词： Side-scan sonar Sonar image desp.ckling Domain knowledge Re-p.rameterization