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| 1 | Simultaneous cloud point extractionand determination of Zn, Co, Ni and Pb by flame atomicabsorption spectrometry显示文摘 | DALLALI N ZAHEDI M M YAMINI Y A | 2007 | Scientia Iranica2007，14，8： | 1 |
| 2 | A review of calixarene applications in nuclear industries 显示文摘 | Mokhtari B Pourabdollah K Dallali N | 2011 | Journal of Radioanalvtical and Nuclear Chemistry2011，，287： | 1 |
| 3 | Germination, morpho-physiological and biochemical responses of coriander ( Coriandrum sativum L.) to zinc excess显示文摘 | Ahmed Marichali Sana Dallali Salwa Ouerghemmi Houcine Sebei Karim Hosni | 2014 | Industrial Crops & Products2014，，： | 1 |
| 4 | Nanocrystalline Growth Activation Energy of Zirconia Polymorphs Synthesized by Mechanochemical Technique显示文摘The synthesis of ZrO_2 by mechanochemical reaction using ZrCI_4 and CaO as raw materials and subsequent annealing of the products were investigated.The effect of thermal treatment on the structural evolution and morphological characteristics of the nanopowders was studied by X-ray diffractometry,Raman spectroscopy,transmission electron microscopy,scanning electron microscopy,differential thermal analysis and Rietveld refinement.The results showed that the average crystallite size of ZrO_2 was less than 100 nm up to around1100 ℃.The activation energy for ZrO_2 nanocrystallite growth during calcination was calculated to be about13,715 and 27,333 J/mol for tetragonal(t-ZrO_2) and monoclinic(m-ZrO_2) polymorphs,respectively.Mechanism of the nanocrystallite growth of the ZrO_2 polymorphs during annealing is primarily investigated. | Taghi Dallali Isfahani Jafar Javadpour Alireza Khav Massoud Goodarzi Hamid Reza Rezaie | 2014 | Journal of Materials Science & Technology2014，30，4： | 0 |
| 5 | On the use of positive feedback for improved torque control显示文摘This paper considers the torque control problem for robots with flexible joints driven by electrical actuators.It is shown that the achievable closed-loop tracking bandwidth using PI torque controllers may be limited due to transmission zeros introduced by the load dynamics.This limitation is overcome by using positive feedback from the load motion in unison with PI torque controllers.The positive feedback is given in terms of load velocity,acceleration and jerk.Stability conditions for designing decentralized PI torque controllers are derived in terms of Routh-Hurwitz criteria.Disturbance rejection properties of the closed system are characterized and an analysis is carried out investigating the use of approximate positive feedback by omitting acceleration and/or jerk signals.The results of this paper are illustrated for a two DoF(degrees of freedom)system.Experimental results for a one DoF system are also included. | Houman DALLALI Gustavo A.MEDRANO-CERDA Michele FOCCHI Thiago BOAVENTURA Marco FRIGERIO Claudio SEMINI Jonas BUCHLI Darwin G.CALDWELL | 2015 | Control Theory and Technology2015，13，3： | 0 |
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