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| 1 | Physical modeling and visualization of soil liquefaction under high confining stress显示文摘The mechanisms of seismically-induced liquefaction of granular soils under high confining stresses are still not fully understood. Evaluation of these mechanisms is generally based on extrapolation of observed behavior at shallow depths.Three centrifuge model tests were conducted at RPI's experimental facility to investigate the effects of confining stresses on the dynamic response ora deep horizontal deposit of saturated sand. Liquefaction was observed at high confining stresses in each of the tests. A system identification procedure was used to estimate the associated shear strain and stress time histories.These histories revealed a response marked by shear strength degradation and dilative patterns. The recorded accelerations and pore pressures were employed to generate visual animations of the models. These visualizations revealed a liquefaction front traveling downward and leading to large shear strains and isolation of upper soil layers. | Lenart González Tarek Abdoun Mourad Zeghal Vivian Kallou Michael K. Sharp | 2005 | Earthquake Engineering and Engineering Vibration2005，4，1： | 4 |
| 2 | Identification and imaging of soil and soil-pile deformation in the presence of liquefaction显示文摘A simple identification technique is developed to visualize the dynamic deformation mechanisms of centrifuge models of saturated soil and soil-pile systems using the measurements provided by sparsely distributed sensors. Cross-correlation analyses are employed first to assess the variation of shear wave velocity profile with time as soil experiences stiffness reduction and degradation during dynamic excitations. The corresponding time-dependent modal configurations are determined using the finite-element technique. These configurations are used along with recorded motions to evaluate optimal time histories of displacement and strain fields based on a spectral motion reconstruction. Visualizations of the response of infinite slope and soil-pile centrifuge models revealed salient and complex multi-dimensional deformation patterns, especially at high pore pressure ratios. The developed technique provides an effective tool to visualize and analyze the dynamic response of centrifuge, shake-table and field soil systems. | M. Zeghal P. V. Kallou C. Oskay T. Abdoun M. K. Sharp | 2006 | Earthquake Engineering and Engineering Vibration2006，5，2： | 3 |
| 3 | Dimethoate Induced Oxidative Damage and Histopathological Changes in lung of Adult rats:Modulatory Effects of Selenium and/or Vitamin E显示文摘Objective To determine the efficiency of selenium and/or vitamin E to alleviate lung oxidative damage induced by dimethoate,an organophosphorus compound.Methods Adult Wistar rats were exposed during 30 days either to dimethoate (0.2 g/L of drinking water),dimethoate+selenium (0.5 mg/kg of diet),dimethoate+vitamin E (100 mg/kg of diet),or dimethoate+selenium+vitamin E.Results Exposure to dimethoate caused oxidative stress in lung evidenced by an increase of malondialdehyde,protein carbonyl groups and advanced oxidation protein products.An increase in glutathione peroxidase,superoxide dismutase,catalase and a decrease in acetylcholinesterase and butyrylcholinesterase activities,glutathione,non-protein thiols and vitamins C levels were observed.Histopathological changes in lung tissue were noted as emphysema,hemorrhages and hemosiderin deposits.Co-administration of selenium or vitamin E to the diet of dimethoate treated rats ameliorated the biochemical parameters as well as histological impairments.The joint effect of these elements was more powerful in antagonizing dimethoate-induced lung oxidative damage.Conclusion We concluded that selenium and vitamin E ameliorated the toxic effects of this pesticide in lung tissue suggesting their role as potential antioxidants. | Ibtissem Ben AMARA Nejla SOUDANI Afef TROUDI Ahmed HAKIM Khaled Mounir ZEGHAL Tahia BOUDAWARA Najiba ZEGHAL | 2012 | Biomedical and Environmental Sciences2012，25，3： | 2 |
| 4 | The Effect of the 2007/2008 Financial Crisis on Enterprise Risk Management Disclosure of Top US Banks显示文摘 | Daniel Zeghal Meriem El Aoun | 2016 | Journal of Modern Accounting and Auditing2016，12，1： | 2 |
| 5 | Free radicals and antioxidants: physiology, human pathology and therapeutic aspects (part II) 显示文摘 | Sahnoun Z Jamoussi K Zeghal K M | 1998 | Therapie1998，53，4： | 1 |
| 6 | Mechanism of Liquefaction Response in Sand Silt Dynamic Centrifuge Tests 显示文摘 | Zeghal M Elgamal A Zeng X Arulmoli K | 1999 | Soil Dynamics and Earthquake Engineering1999，18，1： | 1 |
| 7 | Antidiabetic effect of flax and pumpkin seed mixture powder: effect on hyperlipidemia and antioxidant status in alloxan diabetic rats显示文摘 | Mohamed Makni Hamadi Fetoui Nabil K. Gargouri El Mouldi Garoui Najiba Zeghal | 2011 | Journal of Diabetes and Its Complications2011，，5： | 1 |
| 8 | The Pricing of Audit Services: Further Evidence from the Canadian Market 显示文摘 | Anderson T Zeghal D | 1994 | Accounting and Business Research1994，24，95： | 1 |
| 9 | Financial Reporting of Small Business Entities in Canada显示文摘 | Michael Maingot and Daniel Zeghal | 2006 | Journal of Small Business Management2006，，4： | 1 |
| 10 | Cobalt chloride induces hepatotoxicity in adult rats and their suckling pups显示文摘 | El Mouldi Garoui Hamadi Fetoui Fatma Ayadi Makni Tahia Boudawara Najiba Zeghal | 2009 | Experimental and Toxicologic Pathology2009，，1： | 1 |
| 11 | Effect of fluoride on thyroid function and cerebellar development in mice显示文摘 | Trabelsi M Guermazi F Zeghal N | 2001 | Fluoride2001，34，： | 1 |
| 12 | Analysis of site liquefaction using earthquake records显示文摘 | Zeghal M Elgamal A W | 1994 | Journal of Geotechnical Engineering Division:ASCE1994，120，6： | 1 |
| 13 | Interaction brain- lungs 显示文摘 | Abdennour L Zeghal C Dbme M | 2012 | Ann Fr Anesth Reanim2012，31，6： | 1 |
| 14 | Protective effects of selenium on methimazole nephrotoxicity in adult rats and their offspring显示文摘 | Ibtissem Ben Amara Afef Troudi Elmouldi Garoui Ahmed Hakim Tahia Boudawara Khaled Mounir Zeghal Najiba Zeghal | 2010 | Experimental and Toxicologic Pathology2010，，6： | 1 |
| 15 | Evaluation of lowstrain site characteristics using the Lotung seismic array显示文摘 | Elgamal A W Zeghal M Tang H T | 1995 | Journal of Geotechnical Engineering Division:ASCE1995，121，4： | 1 |
| 16 | Prognosis of delivery from a scared uterus:123 cases显示文摘 | Ben Brahim F Zeghal D Mahjoub S | 2008 | Tunis Med2008，86，11： | 1 |
| 17 | Simple control strategies of methanol dosing for post-denitrification显示文摘 | Puznava N Zeghal S Redder E | 1998 | Water Sci Technol1998，38，3： | 1 |
| 18 | Financial Reporting of Small Business Entities in Canada显示文摘 | Michael Maingot Daniel Zeghal | | 0，，： | 1 |
| 19 | A micro-mechanical investigation of the dynamic response and liquefaction of saturated granular soils显示文摘 | U. El Shamy M. Zeghal | 2007 | Soil Dynamics and Earthquake Engineering2007，，8： | 1 |
| 20 | Liquefaction of saturated loose and cemented granular soils显示文摘 | M. Zeghal U. El Shamy | 2007 | Powder Technology2007，，2： | 1 |
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