Results 51 to 60 of about 531,079 (147)

Biventricular Mechanical Circulatory Support Does Not Prevent Delayed Myocardial Ventricular Rupture following Myocardial Infarction

open access: yesCase Reports in Cardiology, 2013
Cardiogenic shock and myocardial rupture can complicate an acute myocardial infarction (AMI). A case is reported in which a 58-year-old male with an acute inferior myocardial infarction required placement of biventricular assist device for hemodynamic ...
Yazhini Ravi   +4 more
doaj   +1 more source

Calculation of electrical impedance of oscillating piezoceramic disk in the area of high frequencies

open access: yesТехнічна інженерія, 2020
The relevance of the use of various functional elements of piezoelectronics in power and information systems is due primarily to their high reliability. As a result of research of mathematical model of the real device it is possible to define a specific ...
K.V. Bazilo   +3 more
doaj   +1 more source

Work in Progress: Enabling robot device discovery through robot device descriptions [PDF]

open access: yesarXiv, 2013
There is no dearth of new robots that provide both generalized and customized platforms for learning and research. Unfortunately as we attempt to adapt existing software components, we are faced with an explosion of device drivers that interface each hardware platform with existing frameworks.
arxiv  

Merging automatic differentiation and the adjoint method for photonic inverse design [PDF]

open access: yesarXiv, 2023
Optimizing shapes and topology of physical devices is crucial for both scientific and technological advancements, given its wide-ranging implications across numerous industries and research areas. Innovations in shape and topology optimization have been seen across a wide range of fields, notably structural mechanics, fluid mechanics, and photonics ...
arxiv  

On Dynamic Stability of a Nonlinear Aeroelastic System

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2018
A nonlinear mathematical model of a device related to vibratory technology is considered. The device is intended for the intensification of technological processes, for example, the mixing process. The action of such devices is based on the vibrations of
P. A. Velmisov, A. V. Ankilov
doaj   +1 more source

On the Modeling of Hysteretic Oscillations of Mechanical Systems [PDF]

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки, 2015
The paper considers nonstationary vibrations of mechanical systems with hysteretic dampers. To describe the hysteresis, a phenomenological approach is suggested, which is demonstrated on the problem of forced vibrations produced by the antigalloping ...
A.N. Danilin
doaj  

Development of an ADL assistance apparatus for upper limbs and evaluation of muscle and cerebral activity of the user

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2014
This assistance apparatus for upper limbs was developed for patients who can control their fingers but they cannot lift up their arms themselves, for example myopathy and hemiplegic patients.
Eiichirou TANAKA   +3 more
doaj   +1 more source

Experimental data for a flow control valve

open access: yesData in Brief, 2019
Experimental data presented in this paper include the flow measurements through cylindrical orifices and the discharge behavior of Mechanical Choked Orifice Plate, MCOP.
P. Rezazadeh   +2 more
doaj  

Decomposition method in the study load-loading forestry manipulator mechanism mathematical model [PDF]

open access: yesBIO Web of Conferences
In this article a new hydrokinematic diagram of the boom lifting mechanism with an energy recuperation system in starting and braking modes is presented.
Uskov Vladimir   +2 more
doaj   +1 more source

A differential memristive synapse circuit for on-line learning in neuromorphic computing systems [PDF]

open access: yes, 2017
Spike-based learning with memristive devices in neuromorphic computing architectures typically uses learning circuits that require overlapping pulses from pre- and post-synaptic nodes. This imposes severe constraints on the length of the pulses transmitted in the network, and on the network's throughput.
arxiv   +1 more source

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