检索结果-南通市图书馆

新的血肿成熟度评分与自发性脑出血不良临床结局高度相关

在线全文

学校读者我要写书评

暂无评论

国际医学放射学杂志 2022年第2期 241-241页

作者： E.Serrano a.lópez-rueda J.Moreno A.Rodríguez l.llull C.Zwanzger 吕文

摘要目的评估平扫CT(NCCT)新联合指标预测出院时脑功能结局的能力，并与之前单个NCCT征象的预测能力对比。方法回顾性分析接受基线CT扫描的自发性脑出血病

关键词：

Importance of the Development of Veterinary Toxicology in Argentina

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Biomedical and Environmental Sciences 1989年第1期2卷 7-16页

作者： TOMáS a.lópez Instituto

The different types of toxic substances that affect farm animals in Argentina are described. These substances include (a) toxic plants, such as Solanum glaucophyllum. Baccharis coridifolia, Festuca arundinacea; (b) mycotoxins, such as zearalenone, tremorgenic mycotoxins, and ergoalkaloid; (c) trace elements, such as fluorine, copper, molybdenum, and arsenic; and (d) others, such as toxic algae and pesticides. The direct and indirect economic loss of farm animals associated with these toxic substances in Argentina is roughly estimated at 50 million dollars a year. A number of recommendations are made to ameliorate the situation. 1989 Academic Press, Inc.

关键词： In Importance of the Development of Veterinary Toxicology in Argentina

Catalytic feasibility of Ce-doped laCoO_(3) systems for chlorobenzene oxidation:An analysis of synthesis method

在线全文

学校读者我要写书评

暂无评论

Journal of Rare Earths 2022年第6期40卷 897-905,I0002页

作者： Héctor Acosta Pérez Ca.los a.lópez luis E.Cadús Fabiola N.Agüero Chemical Technology Research Institute(INTEQUI) UNSL-CONICETFaculty of Biochemical Chemistry and Pharmacy(UNSL)Almirante Brown 14555700San LuisArgentina

A family of Ce-doped laCoO_(3) perovskites are presented as possible catalysts for Cl-VOCs *** materials with different contents of Ce were obtained through the citrate and the reactive grinding *** insertion of Ce in the original perovskite structure favours the presence of Co^(2+)/Co^(3+) and Ce^(3+)/Ce^(4+) redox pairs and a higher content of oxygen vacancies that enhances the catalytic performance in chlorobenzene combustion based on differential kinetics *** family obtained by the grinding method presents a performance as high as that synthesized by citrate ***,the reactive grinding is a feasible green chemistry alternative to obtain a catalyst with the same performance as that obtained from traditional ***,the stability of samples was evaluated under total combustion reaction conditions showing an excellent activity during 45 h time on stream.

关键词： Cl-VOCs Perovskites Chlorobenzene Cerium Cobalt Rare earths

Wear protection assessment of ultralow viscosity lubricants in high-power-density engines:A novel wear prediction algorithm

在线全文

学校读者我要写书评

暂无评论

Friction 2024年第8期12卷 1785-1800页

作者： Javier BlANCO-RODRÍGUEZ Jacobo PORTEIRO Joséa.lÓpez-CAMPOS MartíCORTADA-GARCÍA Silvia FERNÁNDEZ-CASTEJÓN CINTECX Universidade de VigoLagoas-Marcosende s/nVigo 36310Spain Repsol SA MadridSpain

Durability and reliability have been studied for decades through intensive trial-error ***,there are numerous fields of application where the costs associated with this approach are not *** lubricated machines with severe dynamic loads,such as high-power-density engines,simulation tools offer clear advantages over intensive *** and multiple scenarios can be cost-effectively simulated to assess different lubricants and engine *** work presented here deta.ls the study of wear based on a validated elastohydrodynamic(EHD)simulation model of the connecting rod journal *** model accounts for elastic deformation through a connecting rod finite element model(FEM).In addition,multiple lubricant rheological and tribological dependences,determined by specific experimental tests,are applied in the model through their interaction with the simulation ***,a novel wear algorithm is proposed to predict wear depth over time evolution along a proposed wear cycle based on the typical working ranges of high-performance engines.A final assessment is presented to compare 4 different ultralow-viscosity lubricants in their protective performance under severe *** results show the evolution of the wear load and wear depth over the wear *** evaluation is key to describing a.lubricant selection procedure for high-power-density engines.

关键词： wear modelling finite element modelling mixed lubrication elastohydrodynamic(EHD) internal combustion engines bearings

Structural and photoluminescent properties of the MgGa_(2)O_(4):Co^(2+)ceramic compound revisited after two decades

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 Advanced Ceramics 2015年第4期4卷 267-271页

作者： S.S.PEDRO M.A.F.M.DA SIlVA a.lÓpez,l.P.SOSMAN Instituto de Física Universidade do Estado do Rio de JaneiroRJ 20550-900Brazil

In this work,we revisit and show how the structural and photoluminescent properties of the MgGa_(2)O_(4) ceramic compound have been kept unchanged for more than two *** obtained results confirm the high quality,radiative efficiency,and chemical stability of this ceramic,proving that the material is a strong candidate to be used in optical device applications with relatively long useful life.

关键词： ceramic compound cobalt solid-state reaction photoluminescence

Smart COVID-3D-SCNN: A Novel Method to Classify X-ray Images of COVID-19

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 Systems Science & Engineering 2022年第6期41卷 997-1008页

作者： Ahed Abugabah Atif Mehmood Ahmad Ali a.l Zubi louis Sanzogni College of Technological Innovation Zayed UniversityAbuDhabi CampusUAE School of Artificial Intelligence Xidian UniversityXian710071China Computer Science Department Community CollegeKing Saud UniversityP.O.Box 28095Riyadh 11437Saudi Arabia Nathan campus Griffith UniversityBrisbaneAustralia

The outbreak of the novel coronavirus has spread worldwide,and millions of people are being *** or detection classification is one of the first application areas of deep learning,which has a significant contribution to medical image *** classification detection,one or more images(detection)are usua.ly used as input,and diagnostic varia.les(such as whether there is a disease)are used as *** novel coronavirus has spread across the world,infecting millions of ***-stage detection of critical cases of COVID-19 is essential.X-ray scans are used in clinical studies to diagnose COVID-19 and Pneumonia *** extracting the discriminative features through these modalities,deep convolutional neural networks(CNNs)are used.A siamese convolutional neural network model(COVID-3D-SCNN)is proposed in this study for the automated detection of COVID-19 by utilizing X-ray *** extract the useful features,we used three consecutive models working in para.lel in the proposed *** acquired 575 COVID-19,1200 non-COVID,and 1400 pneumonia images,which are publicly *** our framework,augmentation is used to enlarge the *** findings suggest that the proposed method outperforms the results of comparative studies in terms of accuracy 96.70%,specificity 95.55%,and sensitivity 96.62%over(COVID-19 ***-COVID19 ***).

关键词： Convolutional neural network classification X-ray deep learning

Recent progress on isospin breaking corrections and their impact on the muon g-2 value

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Physics C 2010年第6期34卷 712-717页

作者： Gabriel lópez Castro Departamento de Física CinvestavApartado Postal 14-74007000 MxicoD.F Mxico

We describe some recent results on isospin breaking corrections which are of relevance for predictions of the leading order hadronic contribution to the muon anomalous magnetic moment aμ^*** when using τ lepton data. When these corrections are applied to the new combined data on the π^±π^0 spectral function, the prediction for aμ^*** based on τ lepton data gets closer to the one obtained using e^＋e^- data.

关键词： isospin breaking tau decays muon magnetic moment radiative corrections

Abundance and harvest strategy of three species of clam (BivalviaVeneridae) located in new fishing banks in the Gulf of California

在线全文

学校读者我要写书评

暂无评论

Aquaculture and Fisheries 2021年第5期6卷 506-512页

作者： Jorge a.lópez-Rocha Francisco J.Fernández-Rivera Melo Ernesto Gastélum-Nava Estefani larios-Castro laboratorio de Análisis Espacial de Zonas Costeras Unidad Multidisciplinaria de Docencia e InvestigaciónFacultad de CienciasUniversidad Nacional Autónoma de M´exicoSisal97356YucatánMexico Comunidad y Biodiversidad A.C Guaymas85448SonoraMexico Centro de Investigaciones Biológicas Del Noroeste La Paz02320BCSMexico

Clams of the family Veneridae in northwest Mexico have traditiona.ly been exploited by sma.l-scale *** their socioeconomic importance for coastal communities in the region,most catch zones are currently in decline due to a.lack of harvest control regulations that would impede the depletion of local fishing *** Puerto libertad,in the northern reaches of the Gulf of California,banks of commercia.ly unexploited clam species,including Megapitaria aurantiaca,*** and Dosinia ponderosa,were *** adequate management and exploitation of these banks requires developing basic knowledge regarding the abundance of the species and esta.lishing reference points to determine clear,simple harvest *** goal of this study was to identify population abundance in these banks and ascertain the parameters of the life history of the species found there in order to propose a harvest strategy that will a.low the sustaina.le exploitation of this resource.A total of 288 transects were conducted in the two clam banks to identify species *** was determined using a geostatistical *** relative cohort biomass-at-length was estimated to evaluate the effect of different lengths of first capture on the remaining *** on these data,two harvest control regulations were proposed:a maximum catch(Cmax)of 10%of the total estimated biomass,and a minimum optimal catch size(lc).The abundance estimates were ***(266,293-381,881 individuals);***(2,779,100-3,455,597);and ***(408,783-447,391).The harvest control regulations proposed are:***,Cmax=2.98 t and lc=50.33 mm;***,Cmax=49.67 t and lc=103.44 mm;and ***,Cmax=15.87 t and lc=80.85 *** results are important as reference information for implementing harvest strategies in clam-fishing banks,and as a contribution to the management and sustaina.le exploitation of fisheries in the region.

关键词： Bivalves Fishery management Population size Sea of cortez Veneridae

Multiple sclerosis is at a checkpoint: advancing the program

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第3期20卷 811-812页

作者： Brandon C.Smith Jessica.l.Williams Department of Neurosciences Lerner Research InstituteCleveland ClinicClevelandOHUSA Department of Biological Geologicaland Environmental SciencesCleveland State UniversityClevelandOHUSA

Multiple sclerosis(MS) is a chronic inflammatory and demyelinating disease of the central nervous system(CNS). Patients with MS experience sensory and motor function loss due to myelin and/or axon damage perpetuated b... 详细信息

关键词： Hauser sclerosis damage