Search results for "Cryptography"
showing 10 items of 657 documents
Embedded Model Control and dynamic simulation
2006
Embedded model control (EMC) is and end-to-end control technology addressed to industrial engineers and centered on the embedded model, a stylized discrete-time state equation of the whole plant, including environment, communication and computing resources. The embedded model, which is the core of the control unit, is derived and validated from a fine model of the plant which is implemented as a simulator code. The latter acts as a faithful and friendly test-bench where assessing control units before they are loaded into target processor. The paper illustrates the requirements and architecture of the EMC simulator under continuous improvement. A case study closes the paper.
Overload breakdown in models for photosynthesis
2015
In many models of the Calvin cycle of photosynthesis it is observed that there are solutions where concentrations of key substances belonging to the cycle tend to zero at late times, a phenomenon known as overload breakdown. In this paper we prove theorems about the existence and non-existence of solutions of this type and obtain information on which concentrations tend to zero when overload breakdown occurs. As a starting point we take a model of Pettersson and Ryde-Pettersson which seems to be prone to overload breakdown and a modification of it due to Poolman which was intended to avoid this effect.
"Table 1" of "Study of $e^+e^- \rightarrow p\bar{p}$ in the vicinity of $\psi(3770)$"
2014
Summary of results at center-of-mass energies from 3.65 to 3.90 GeV. N(SIG) is the number of E+ E- --> P P events; EPSILON is the detection efficiency; L is the integrated luminosity; (1 + DELTA)(DRESSED) is the initial state radiation correction factor without the vacuum polarization correction; and SIG(OBS), SIG(DRESSED) and SIG(BORN) are the observed cross section, the dressed cross section and the Born cross section, respectively.
"Table 1" of "Search for single top production in e+ e- collisions at s**(1/2) = 189-GeV - 202-GeV."
2000
SIG(C=LEPT) and SIG(C=HADR) are the cross sections upper limits evaluated for leptonic and hadronic decay modes of the W-boson, while SIG(C=COMB) are the values obtained by combining the leptonic and hadronic W-boson decay channels. All cross sections values are obtained under assumption of BR(TQ --> W+ BQ) = 100 %.
Key advantages of the leverage points perspective to shape human-nature relations
2021
This perspective paper synthesises the special issue 'Human-nature connectedness as a leverage point for sustainability transformation'. Based on the articles in this special issue, we aim to foster the operationalisation of the leverage points perspective to shape human-nature relations to enable sustainability transformations. Specifically, we draw on four key advantages of the leverage points perspective: (i) the explicit recognition of deep leverage points; (ii) the ability to examine the interactions between shallow and deep system changes; (iii) the combination of causal and teleological modes of research; and (iv) the ability to function as a methodological boundary object. The contr…
El papel de la formalización y la confianza organizacional como antecedentes de ambidestreza: una investigación sobre la industria agroalimentaria or…
2020
This article investigates the influence of specific key organizational factors (i.e., enabling formalization, coercive formalization, and trust) as antecedents of ambidexterity. Moreover, we propose a new way of operationalizing ambidexterity, under a holistic vision, including the synergies between exploration and exploitation. The study has been developed in the Spanish organic agro-food industry; a total of 239 usable responses were received from two respondents from each company—the general manager and the quality manager. The findings show that enabling formalization and organizational trust are positively related to ambidexterity, but contrary to our predictions, we found no evidence …
Open innovation: A real option to restore value to the biopharmaceutical R&D
2014
Abstract The pharmaceutical landscape has changed, and new business models, based on alliances, are increasingly being adopted in this industry. Biotechnology advances have pushed this development, and pooling complementary resources coming from incumbents and newcomers is a key skill to succeed: these are the premises for a quick spread of the open innovation (OI) paradigm in this industry. RD to achieve this goal the authors propose a closed-form model that is easy to implement, to evaluate the OI initiative for selecting an optimal RD i.e. licensing-in or not) and the self-financing policy. The proposed model can be easily implemented into a spreadsheet, and the inputs needed to run it a…
Design and Implementation of Deep Learning Based Contactless Authentication System Using Hand Gestures
2021
Hand gestures based sign language digits have several contactless applications. Applications include communication for impaired people, such as elderly and disabled people, health-care applications, automotive user interfaces, and security and surveillance. This work presents the design and implementation of a complete end-to-end deep learning based edge computing system that can verify a user contactlessly using &lsquo
Teoría de la educación : revista interuniversitaria
2017
En el campo de la educación nos encontramos actualmente con dos importantes requerimientos, sólidamente fundamentados, para introducir la Educación para la Sostenibilidad y la Educación en Derechos Humanos. Se trata, en efecto, de dos áreas educativas prioritarias, a las que UNESCO ha dedicado sendos decenios. Es preciso reconocer, sin embargo, la escasa conexión entre ambas, así como su insuficiente presencia en el sistema educativo, muy particularmente en el nivel universitario. Nuestro propósito en este trabajo es, precisamente, mostrar que, contrariamente a lo que, en general, se ha venido considerando, ambos campos de conocimiento y actividad social están estrechamente vinculados y deb…
Remote diagnosis and control of wheelchair electrical drive systems
2005
A new Diagnostic and Protective System (DPS) suitable for wheelchair electrical drive applications has been prepared. Such a system is able to perform both monitoring and long-distance transmission of key signals that are used as pre-fault and fault indicators. The system, moreover, may detect several anomalous working conditions by means of reliable diagnosis procedures and carries out actions to protect the electrical drive and to drive the disabled people in safe conditions. In particular the design, the realization and the performance analysis of the new dedicated diagnostic system, which exploits a programmable logic controller (PLC) as DRS hardware, are described and discussed. The ef…