Search results for "500"
showing 10 items of 3244 documents
Integrative strategy formation process and the management of complex work - a microorganizational analisys
2010
The goal of this study is to analyse how the strategy formation process takes place; studying the relevance of the integrative perspective and the use of the variables rationality, involvement and vision; Verifying the relationship between an integrative strategy formation process and the management of work and the consequences of this relationship in terms of performance, identifying the causes for a better fit; Also, verify the propositions that have been formulated and looking for new variables that could affect the relationship between strategic process and work management. It has been adopted a qualitative methodology through a study case. After the case analysis it has been identified…
Scenario-based Serious Game to Teach about Healthcare
2019
Author's accepted manuscript (postprint). © 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. Available from 29/10/2021. In this paper, we explore the concept of a scenario-based serious game for healthcare solutions. The complexity of the interactions and the multitude of actors is captured in a scenario, which is then played with the help of an additional game pl…
Creating stable Floquet–Weyl semimetals by laser-driving of 3D Dirac materials
2017
Nature Communications 8, 13940 (2017). doi:10.1038/ncomms13940
Simple Lossless Inductive Snubbers-Assisted Series Load Resonant Inverter Operating under ZCS-PDM Scheme for High-Frequency Induction Heating Fixed R…
2022
This paper presents a high-frequency pulse-density-modulated (PDM) soft-switching series load resonant inverter for use in induction heating (IH) fixed roller applications, which is used in copy and printing machines. The proposed simple high-frequency resonant inverter uses an asymmetrical pulse pattern PDM control scheme to achieve complete zero-current soft-switching commutations over a wide output range of input power regulation. Additionally, when the printer toner requires operation in very light load conditions, this causes difficulty in achieving zero-voltage or zero-current soft-switching operations in the IH high-frequency resonant inverters with pulse frequency modulation or puls…
Development of a Novel Object Detection System Based on Synthetic Data Generated from Unreal Game Engine
2022
This paper presents a novel approach to training a real-world object detection system based on synthetic data utilizing state-of-the-art technologies. Training an object detection system can be challenging and time-consuming as machine learning requires substantial volumes of training data with associated metadata. Synthetic data can solve this by providing unlimited desired training data with automatic generation. However, the main challenge is creating a balanced dataset that closes the reality gap and generalizes well when deployed in the real world. A state-of-the-art game engine, Unreal Engine 4, was used to approach the challenge of generating a photorealistic dataset for deep learnin…
Interaction-induced spin polarization in quantum dots.
2010
The electronic states of lateral many electron quantum dots in high magnetic fields are analyzed in terms of energy and spin. In a regime with two Landau levels in the dot, several Coulomb blockade peaks are measured. A zig-zag pattern is found as it is known from the Fock-Darwin spectrum. However, only data from Landau level 0 show the typical spin-induced bimodality, whereas features from Landau level 1 cannot be explained with the Fock-Darwin picture. Instead, by including the interaction effects within spin-density-functional theory a good agreement between experiment and theory is obtained. The absence of bimodality on Landau level 1 is found to be due to strong spin polarization.
Duques, princesas y arzobispos: la fecha de redacción de Virtud, pobreza y mujer, de Lope de Vega
2021
En este artículo se aportan las razones oportunas para considerar que la comedia 'Virtud, pobreza y mujer', de Lope de Vega, se escribió a comienzos de 1616, frente a la opinión mayoritaria de la crítica, que hasta ahora se había inclinado por fecharla en un periodo comprendido entre 1612 y 1615. Los indicios a este respecto se encuentran en el segundo acto de la obra: se trata de una serie de referencias a circunstancias concretas, fechables todas ellas en 1616, ligadas a personajes del momento, tales como el arzobispo Pedro González de Mendoza y Silva (1571-1639), la princesa - y futura reina - Isabel de Borbón (1602-1644) y, finalmente, Jorge de Cárdenas y Manrique (ca. 1592-1644), cuart…
The Role of the Internet in Overcoming Information Barriers: Implications for Exporting SMEs of the East African Community
2012
Small and medium-sized enterprises play a significant role in the East African Community, contributing highly to the national income and employing a significant number of people. Exportation provides a great opportunity for these enterprises to expand their businesses and improve their performance. However, they encounter a number of information- related barriers before and during exportation. Based on literature, this paper identifies these barriers and discusses how the internet could be used to reduce them. Based on the internet, international business and small business literature, the paper provides propositions and develops a model that will be useful for future studies in this area.
A Trajectory-Driven 3D Non-Stationary mm-Wave MIMO Channel Model for a Single Moving Point Scatterer
2021
This paper proposes a new non-stationary three-dimensional (3D) channel model for a physical millimeter wave (mm-Wave) multiple-input multiple-output (MIMO) channel. This MIMO channel model is driven by the trajectory of a moving point scatterer, which allows us to investigate the impact of a single moving point scatterer on the propagation characteristics in an indoor environment. Starting from the time-variant (TV) channel transfer function, the temporal behavior of the proposed non-stationary channel model has been analyzed by studying the TV micro-Doppler characteristics and the TV mean Doppler shift. The proposed channel model has been validated by measurements performed in an indoor e…
WiWeHAR: Multimodal Human Activity Recognition Using Wi-Fi and Wearable Sensing Modalities
2020
Robust and accurate human activity recognition (HAR) systems are essential to many human-centric services within active assisted living and healthcare facilities. Traditional HAR systems mostly leverage a single sensing modality (e.g., either wearable, vision, or radio frequency sensing) combined with machine learning techniques to recognize human activities. Such unimodal HAR systems do not cope well with real-time changes in the environment. To overcome this limitation, new HAR systems that incorporate multiple sensing modalities are needed. Multiple diverse sensors can provide more accurate and complete information resulting in better recognition of the performed activities. This article…