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8篇 您的检索式:作者名="Mario Martinelli"
    题名 作者 年代 出处 被引量
1Validation of material point method for soil fluidisation analysis显示文摘The main aim of this paper is to describe and analyse the modelling of vertical column tests that undergo fluidisation by the application of a hydraulic gradient.A recent advancement of the material point method(MPM),allows studying both stationary and non-stationary fluid flow while interacting with the solid phase.The fluidisation initiation and post-fluidisation processes of the soil will be investigated with an advanced MPM formulation(Double Point)in which the behavior of the solid and the liquid phase is evaluated separately,assigning to each of them a set of material points(MPs).The result of these simulations are compared to analytic solutions and measurements from laboratory experiments.This work is used as a benchmark test for the MPM double point formulation in the Anura3D software and to verify the feasibility of the software for possible future engineering applications.Marco Bolognin Mario Martinelli Klaas J.Bakker Sebastiaan N.Jonkman 2017Journal of Hydrodynamics2017,29,3:2
2All-optical switching in phase-shifted fiber Bragg grating 显示文摘 Marco Chinello Mario Martinelli 2000IEEE Photonics Technology Letters2000,12,1:1
3All-Optical Switching in Phase-Shifted Fiber Bmgg Grating 显示文摘ANDREA Melloni MARCO Chinellro MARIO Martinelli 2000IEEE Photonics Technology Letters2000,12,1:1
4N -Hydroxyindole-based inhibitors of lactate dehydrogenase against cancer cell proliferation显示文摘Carlotta Granchi Sarabindu Roy Alessio De Simone Irene Salvetti Tiziano Tuccinardi Adriano Martinelli Marco Macchia Mario Lanza Laura Betti Gino Giannaccini Antonio Lucacchini Elisa Giovannetti Rocco Sciarrillo Godefridus J. Peters Filippo Minutolo 2011European Journal of Medicinal Chemistry2011,,11:1
5Optical Network Survivability: Protection Techniques in the WDM Layer显示文摘Guido Maier Achille Pattavina Simone De Patre Mario Martinelli 2002Photonic Network Communications (-)2002,,3:1
6Hepatitis E in hemodialysis and kidney transplant patients in south-east Italy显示文摘AIM:To investigate the serovirological prevalence and clinical features of hepatitis E virus(HEV) infection in end-stage renal failure patients and in the healthy population.METHODS:HEV infection is a viral disease that can cause sporadic and epidemic hepatitis.Previous studies unexpectedly showed a high prevalence of HEV antibodies in immunosuppressed subjects,including hemodialysis(HD)patients and patients who had undergone kidney transplant.A cohort/case-control study was carried out from January 2012 to August 2013 in two hospitals in southern Italy(Foggia and S.Giovanni Rotondo,Apulia).The seroprevalence of HEV was determined in 801 subjects;231 HD patients,120 renal transplant recipients,and450 health individuals.All HD patients and the recipients of renal transplants were attending the Departments of Nephrology and Dialysis at two hospitals located in Southern Italy,and were included progressively in this study.Serum samples were tested for HEV antibodies(Ig G/Ig M);in the case of positivity they were confirmed by a Western blot assay and were also tested for HEV-RNA,and the HEV genotypes were determined.RESULTS:A total of 30/801(3.7%)patients were positive for anti-HEV Ig(Ig G and/or Ig M)and by Western blot.The healthy population presented with a prevalence of 2.7%,HD patients had a prevalence of 6.0%,and transplant recipients had a prevalence of 3.3%.The overall combined HEV-positive prevalence in the two groups with chronic renal failure was 5.1%.The rates of exposure to HEV(positivity of HEV-Ig G/M in the early samples)were lower in the healthy controls,but the difference among the three groups was not statistically significant(P>0.05).Positivity for anti-HEV/Ig M was detected in 4/30(13.33%)anti-HEV Ig positive individuals,in 2/14 HD patients,in1/4 transplant individuals,and in 1/12 of the healthy population.The relative risk of being HEV-Ig M-positive was significantly higher among transplant recipients compared to the other two groups(OR=65.4,95%CI:7.2-592.7,P<0.001),but the subjects with HEV-Ig M positivity were numerically too few to calculate a significant difference.No patient presented with chronic hepatitis from HEV infection alone.CONCLUSION:This study indicated a higher,but not significant,circulation of HEV in hemodialysis patients vs the healthy population.Chronic hepatitis due to the HEV virus was not observed.Gaetano Scotto Filippo Aucella Giuseppe Grandaliano Domenico Martinelli Mario Querques Antonio Gesuete Barbara Infante Paolo Delli Carri Salvatore Massa Giovanna Salatino Fabio Bulla Vincenzina Fazio 2015World Journal of Gastroenterology2015,21,11:1
7NOTE COMPLEMENTARI SU Orotrechus schwienbacheri GROTTOLO E MARTINELLI,1991(Coleoptera Carabidae Trechinae)DEL MASSICCIO DEL MONTE CAVALLO(Prealpi Venete)MARIO GROTTOLO ARRIGO MARTINELLI 1993Natural Disaster Reduction in China1993,,1:0
8MPM simulations of dam-break floods显示文摘Owing to its ability of modelling large deformations and the ease of dealing with moving boundary conditions,the material point method is gaining popularity in geotechnical engineering applications.In this paper,this promising Lagrangian method is applied to hydrodynamic problems to further explore its potential.The collapse of water columns with different initial aspect ratios is simulated by the material point method.In order to test the accuracy and stability of the material point method,simulations are first validated using experimental data and results of mature numerical models.Then,the model is used to ascertain the critical aspect ratio for the widely-used shallow water equations to give satisfactory approximation.From the comparisons between the simulations based on the material point method and the shallow water equations,the critical aspect ratio for the suitable use of the shallow water equations is found to be 1.Xuanyu Zhao Dongfang Liang Mario Martinelli 2017Journal of Hydrodynamics2017,29,3:0
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