Modeling and Characterization of Rotary Electrohydrostatic Actuators

2015 ◽  
Vol 138 (1) ◽  
Author(s):  
Renato Galluzzi ◽  
Nicola Amati ◽  
Andrea Tonoli

Electrohydrostatic actuators are increasingly finding applications in different fields due to their numerous advantages with respect to electromechanical and conventional hydraulic systems. To understand their behavior, potentialities, limitations, and design aspects, the present paper deals with the modeling of such devices. The discussed phenomena are experimentally validated through the stationary and dynamic characterization tests of a rotary electrohydrostatic prototype. Results emphasize the role of mechanical and hydraulic dissipative effects and the fluid bulk modulus.

Biochemistry ◽  
2001 ◽  
Vol 40 (43) ◽  
pp. 12782-12794 ◽  
Author(s):  
Shih-Che Sue ◽  
Harold C. Jarrell ◽  
Jean-Robert Brisson ◽  
Wen-guey Wu

2022 ◽  
Vol 14 (4) ◽  
pp. 866-882
Author(s):  
D. R. Gilmutdinov

In this paper, we will try to give a dynamic characterization of the object and the subject of Modern theology among the Tatar Muslims on the exemplar of the theological views of ‘Abdunnasīr Qursavi (1776–1812), Shihabutdin Marjani (1818–1889) and Murad Ramzi (1854–1934) (and partly of their contemporaries). The incognizability of the Creator and the faith as “a thing-in-itself” transformed Tatar Religious Epistemology into the cognition of more defi nite realities. Agnosticism in the question of God’s attributes led to the anthropocentric features of theological worldviews. The above-mentioned chain of theologians demonstrates not only the continuity of the Tatar Theology, but also refl ects the dynamics of the evolution of the attitude towards the madhhabs and towards the role of an individual, the specifi cs of the Naqshbandi-Mujaddidiya Sufi brotherhood, as well as the Ottoman ‘usul fi qh’ in the modernization period of the early XVIII century. In general, the works of Qursavi constitute a certain system of views that can be considered as a certain cornerstone, the so-called ‘starting point’ of Tatar School of Theology.


Author(s):  
L. T. Germinario

Understanding the role of metal cluster composition in determining catalytic selectivity and activity is of major interest in heterogeneous catalysis. The electron microscope is well established as a powerful tool for ultrastructural and compositional characterization of support and catalyst. Because the spatial resolution of x-ray microanalysis is defined by the smallest beam diameter into which the required number of electrons can be focused, the dedicated STEM with FEG is the instrument of choice. The main sources of errors in energy dispersive x-ray analysis (EDS) are: (1) beam-induced changes in specimen composition, (2) specimen drift, (3) instrumental factors which produce background radiation, and (4) basic statistical limitations which result in the detection of a finite number of x-ray photons. Digital beam techniques have been described for supported single-element metal clusters with spatial resolutions of about 10 nm. However, the detection of spurious characteristic x-rays away from catalyst particles produced images requiring several image processing steps.


Author(s):  
Natalia Carolina Petrillo

ResumenEn el presente trabajo se intentará mostrar que la fenomenología no conduce a una postura solipsista. Para ello, se caracterizará en qué consiste el solipsismo. Luego, se intentará refutar a lo que se ha de llamar “solipsismo metafísico” y “solipsismo gnoseológico”, con el objetivo principal de poner de manifiesto el fundamento de motivación para la salida de la ficción solipsista.Palabras claves:Phenomenology – solipsim – empatía - HusserlAbstractWith the aim of showing that phenomenology does not lead in solipsism, I will first attempt a characterization of it. Then, I will attempt a refutation of the so-called “metaphysical” and “epistemological” solipsisms. Finally, the nature and role of Husserl´s solipsistic fiction is examined, and the grounds that motivate the overcoming of this standpoint are disclosed.key wordsFenomenología – solipsismo - empathy – Husserl


2020 ◽  
Vol 11 (1) ◽  
pp. 144-148
Author(s):  
Liuba Zlatkova ◽  

The report describes the steps for creating a musical tale by children in the art studios of „Art Workshop“, Shumen. These studios are led by students volunteers related to the arts from pedagogical department of Shumen University, and are realized in time for optional activities in the school where the child studies. The stages of creating a complete product with the help of different arts are traced – from the birth of the idea; the creation of a fairy tale plot by the children; the characterization of the fairy-tale characters; dressing them in movement, song and speech; creating sets and costumes and creating a finished product to present on stage. The role of parents as a link and a necessary helper for children and leaders is also considered, as well as the positive psychological effects that this cooperation creates.


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