Search results for " Architecture"
showing 10 items of 2595 documents
Automated Integration and Communication Synthesis of Reconfigurable MPSoC Platform
2007
The communication synthesis is the main problematic in the multiprocessor system-on-chip (MPSoC). To resolve this problem, several methodologies can be used. These methodologies require automated methods to specify, generate and optimize the hardware, software, and the architectural interfaces between them. In this paper, we present a methodology flow for hardware-software communication synthesis for multiprocessor system-on-chip platform which are dedicated to streaming applications. Our methodology consists of high level architecture communication synthesis from functional description of the MPSoC design. The solution that we propose consists in synthesizing a custom bus architecture for …
Too many passwords? How understanding our memory can increase password memorability
2018
Abstract Passwords are the most common authentication mechanism, that are only increasing with time. Previous research suggests that users cannot remember multiple passwords. Therefore, users adopt insecure password practices, such as password reuse in response to their perceived memory limitations. The critical question not currently examined is whether users’ memory capabilities for password recall are actually related to having a poor memory. This issue is imperative: if insecure password practices result from having a poor memory, then future password research and practice should focus on increasing the memorability of passwords. If, on the other hand, the problem is not solely related …
Improving Password Memorability, While Not Inconveniencing the User
2019
Abstract Passwords are the most frequently used authentication mechanism. However, due to increased password numbers, there has been an increase in insecure password behaviors (e.g., password reuse). Therefore, new and innovative ways are needed to increase password memorability and security. Typically, users are asked to input their passwords once in order to access the system, and twice to verify the password, when they create a new account. But what if users were asked to input their passwords three or four times when they create new accounts? In this study, three groups of participants were asked to verify their passwords once (control group), twice, and three times (two experimental gr…
Influence of structure on the tissue dynamics of the human soleus muscle observed in MRI studies during isometric contractions.
2006
This article investigates how the internal structure of muscle and its relationship with tendon and even skeletal structures influence the translation of muscle fiber contractions into movement of a limb. Reconstructions of the anatomy of the human soleus muscle from the Visible Human Dataset (available from the National Library of Medicine), magnetic resonance images (MRI), and cadaver studies revealed a complex 3D connective tissue structure populated with pennate muscle fibers. The posterior aponeurosis and the median septum of the soleus form the insertion of the muscle and are continuous with the Achilles tendon. The distal extremities of the pennate muscle fibers attach to these struc…
Earth in ancient Sicilian architecture / La terra cruda nelle costruzioni della Sicilia antica
2011
Il patrimonio archeologico siciliano, notoriamente fra i più ricchi del territorio nazionale, fornisce importanti testimonianze degli impieghi remoti della terra cruda, mentre le architetture più recenti custodiscono forme di impiego poco appariscenti e meno note a confronto con altre Regioni italiane. La Sicilia offre un campo di osservazione privilegiato per gli impieghi antichi della terra cruda a fini costruttivi innanzitutto perché custodisce numerosi reperti, risalenti ad epoche che vanno dalla preistoria all’età romana e che sono riferibili a tipologie costruttive varie. La principale caratteristica che si può riscontrare, sia nelle più remote origini che nelle successive evoluzioni,…
Earth as a building material between past and future / Terra cruda nelle costruzioni tra passato e futuro
2011
Nel tema della terra cruda spesso ricorre una sorta di dualismo tra passato e futuro: da un lato, il patrimonio architettonico in crudo costruito sin dall’antichità più remota costituisce un campo di indagine rilevante per il valore documentario e per gli specifici problemi di conservazione. Dall’altro, la terra cruda è posta come valida alternativa per le costruzioni di oggi, all’interno di una diffusa tendenza verso la sostenibilità. Tanto la necessità di conservare meglio le testimonianze del passato quanto l’istanza di gravare meno possibile sull’ambiente con nuovi edifici, portano ad una sola certezza: la centralità della conoscenza. Dopo decenni di studi, si può affermare che non manc…
A still to be explored heritage: stone and earthen architecture in Sicily / Un patrimonio ancora da esplorare: architettura in pietra e terra in Sici…
2011
Gli impieghi a fini costruttivi della terra cruda, che pure nelle civiltà mediterranee hanno trovato espressioni consistenti e talvolta ancora vegete, proprio in Sicilia non hanno avuto riconosciuto sinora un ruolo significativo nel pur ricchissimo patrimonio culturale dell’isola. Tuttavia, oggi sembra acquisita la consapevolezza che questo materiale costruttivo è stato usato anche in Sicilia, costituendo un campo di indagine che merita di essere ancora esplorato, non solo in ambito archeologico. Lo stato dell’arte evidenzia discontinuità rispetto alle tradizioni costruttive in crudo attestate dai ritrovamenti archeologici. Il contributo approfondisce altri impieghi della terra (murature in…
Psychoacoustic Annoyance Implementation With Wireless Acoustic Sensor Networks for Monitoring in Smart Cities
2020
Soundscape standard (ISO 12913) is mainly oriented to describe the psychoacoustic annoyance (PA) due to the perceived sound in different environments. The evaluation of this annoyance is commonly based on the Zwicker and Fastl model that defines several components related to this subjective annoyance, such as loudness, sharpness, roughness, and fluctuation strength. But due to their complexity, these components are difficult to be calculated on small board computers (SBCs) in real time in order to enable a wireless acoustic sensor network for PA monitoring. In this article, we describe the necessary procedures to implement the complete psychoacoustic model by Zwicker and Fastl in a precise …
5G IoT System for Real-Time Psycho-Acoustic Soundscape Monitoring in Smart Cities With Dynamic Computational Offloading to the Edge
2021
Environmental noise monitoring for smart cities need to be as much efficient as possible in order to mitigate its significant impact in the health of their inhabitants. 5G Internet of Things (IoT) systems offer a big opportunity to offload the computation from the sensor nodes, since it provides a series of new concepts for dynamic computing that the previous technologies did not offer. In this article, a complete 5G IoT system for psycho-acoustic monitoring has been designed and implemented using different options for offloading computation to different parts of the system. This offloading has been done by developing different functional splittings of the psycho-acoustic metrics algorithms…
Bill2d - a software package for classical two-dimensional Hamiltonian systems
2015
Abstract We present Bill2d , a modern and efficient C++ package for classical simulations of two-dimensional Hamiltonian systems. Bill2d can be used for various billiard and diffusion problems with one or more charged particles with interactions, different external potentials, an external magnetic field, periodic and open boundaries, etc. The software package can also calculate many key quantities in complex systems such as Poincare sections, survival probabilities, and diffusion coefficients. While aiming at a large class of applicable systems, the code also strives for ease-of-use, efficiency, and modularity for the implementation of additional features. The package comes along with a use…