نتایج جستجو برای: state phase transformation

تعداد نتایج: 1586823  

Journal: :Automatica 2008
Jian-Xin Xu Deqing Huang

In this work, an initial state iterative learning control (ILC) approach is proposed for final state control of motion systems. ILC is applied to learn the desired initial states in the presence of system uncertainties. Four cases are considered where the initial position or speed are manipulated variables and final displacement or speed are controlled variables. Since the control task is speci...

2012
W. Siemons G. J. MacDougall A. A. Aczel J. L. Zarestky M. D. Biegalski S. Liang E. Dagotto S. E. Nagler H. M. Christen

Related Articles Enhanced ferromagnetism and glassy state in phase separated La0.95Sr0.05MnO3+δ J. Appl. Phys. 112, 103907 (2012) Hard ferromagnetism in melt-spun Hf2Co11B alloys Appl. Phys. Lett. 101, 202401 (2012) Magnetic field driven transition from an antiferromagnetic ground state to a ferrimagnetic state in Rb0.19Ba0.3Mn1.1[Fe(CN)6]·0.48H2O Prussian blue analogue J. Appl. Phys. 112, 0939...

2016
Liqiang Wang Cong Wang Lai-Chang Zhang Liangyu Chen Weijie Lu Di Zhang

NiTi wires were brazed together via eutectic reaction between NiTi and Nb powder deposited at the wire contact region. Phase transformation and deformation behavior of the NiTi-Nb eutectic microstructure were investigated using transmission electron microscopy (TEM) and cyclic loading-unloading tests. Results show that R phase and B19' martensite transformation are induced by plastic deformatio...

2005
M. Bejger

We present approximate formulae describing the changes in neutron star parameters caused by the first-order phase transition to an “exotic” state (pion or kaon condensate, quark matter) resulting in formation of a mixed-phase core. The analytical formulae for the changes in radius, moment of inertia and the amount of energy released during the core-quake are derived using the theory of linear r...

2006
Zhidong Xie Thomas G. Sharp

1. Introduction High-pressure minerals, produced by shock metamorphism, are common in and around melt veins in highly shocked chondrites [1-8]. These minerals either crystallized from silicate melt in the shock-vein or formed by solid-state transformed from host-rock fragments entrained in the melt or along shock-vein margins [3]. The study of these high pressure minerals can give us a better u...

Journal: :Physical review letters 2000
Chomaz Duflot Gulminelli

In this paper we study a microcanonical lattice gas model with a constrained average volume. We show that the caloric curve explicitly depends on the considered transformation of the volume with the excitation energy and so does not bear direct information on the characteristics of the phase transition. Conversely, partial energy fluctuations are demonstrated to be a direct measure of the equat...

Journal: :Administrative law and process 2020

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان فارس - دانشکده علوم پایه 1389

در این تحقیق یک روش استخراج فاز جامد ساده، حساس و مطمئن برای استخراج، پیش تغلیظ و اندازه گیری سریع و آسان مقادیر بسیار کم مس وسرب با استفاده از? - آلومینای پوشانده شده با سدیم دودسیل سولفات اصلاح شده با لیگاند بیس (2- هیدروکسی استوفنون)- 1و6 هگزان دی ایمین پیشنهاد گردید. اثر پارامترهای مختلف از جمله ph، مقدار لیگاند، مقدار ? - آلومینا و سدیم دودسیل سولفات، نوع، غلظت و حجم شوینده، ضریب تغلیظ، تک...

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