Speech Articulation Assessment Using Dynamic Magnetic Resonance Imaging Techniques
- S. R. Ventura; M. J. M. Vasconcelos; D. R. Freitas; I. M. Ramos; João Manuel R. S.Tavares
Magnetic Resonance Imaging (MRI) has been successfully applied on real-time analysis of the articulators during speech production along the whole vocal tract, with good signal-to-noise ratio and without ionizing effects. Because speech dynamic events need a minimal sampling rate, an improvement on the temporal resolution of MRI systems is demanded. Our aim is to describe a dynamic MRI technique to acquire and assess the main articulatory events during the production of some European Portuguese utterances. Hence, novel perceptions for dynamic MRI technique using a 3.0 Tesla System are presented in order to study the shape of the vocal tract during...
Alinhamento de Imagem no Espaço e no Tempo para aplicações Biomédicas
Simple and Fast Shape Based Image Retrieval
Content Based Image Retrieval (CBIR) is a challenging and active topic of research. This paper focuses on the shape of the represented objects as the main criterion in respect to evaluate the relevance of the retrieval results. There are several shape descriptors described in the literature, which are reported to achieve good results. However some of them are not obvious to implement or are computationally demanding. In this paper we propose a simple and fast to compute set of features to achieve shape based image retrieval. We conducted retrieval experiments on the MPEG-7 Core Experiment CE-Shape-1 test set and the...
Image Segmentation Algorithms on Female Pelvic Ultrasound Images
The processing and analysis of structures presented in images has been one of the areas of Computational Vision with greater potential and applicability. The main goal of the researchers of this area has been the development of new computational methodologies to study the behaviour of structures in images. The mentioned image-based analysis is very important in many domains. For example, in Medicine, the information obtained by the proposed automatic analysis is crucial to understand the functioning and the behaviour of organs, and thus to assist medical doctors. A faithful simulation of organs is extremely important to improve the accuracy of...
Computational algorithms for the segmentation of the human ear
- E.M. Barroso; Zhen Ma; João Manuel R. S. Tavares; Maria Fernanda Gentil Costa
The main goal of this project is to identify an efficient segmentation algorithm for each anatomic structure of the ear. Therefore, in this paper, it is presented and analyzed computational algorithms that have been used to segment structures in images, especially of the human ear in Computed Tomography (CT) images.
Image Segmentation Algorithms and their use on Doppler Images
This paper aims to make a review on current segmentation algorithms used for medical images. Image segmentation algorithms can be classified according to their methodologies, namely the ones based on thresholds, clustering, and deformable models. Each type of algorithms is discussed as well as their main application fields identified; additionally, the advantages and disadvantages of each type are pointed out. Experiments that apply the algorithms to segment Doppler images are presented to further evaluate their behaviour.
Identification of Foliar Diseases in Cotton Crop
- A. A. Bernardes; J. G. Rogeri; N. Marranghello; A. S. Pereira; A. F. Araujo; João Manuel R. S. Tavares
The pathogens manifestation in plantations are the largest cause of damage in several cultivars, which may cause increase of prices and loss of crop quality. This paper presents a method for automatic classification of cotton diseases through feature extraction of leaf symptoms from digital images. Wavelet transform energy has been used for feature extraction while Support Vector Machine has been used for classification. Five situations have been diagnosed, namely: Healthy crop, Ramularia disease, Bacterial Blight, Ascochyta Blight, and unspecified disease.
A busca de um novo modelo de gestão para a ciência, tecnologia e inovação na política do MCT (1995-2002)
- Alexandre Veronese
reforma do Estado; reforma administrativa de 1995; gestão em ciência e tecnologia; política científica e tecnológica.
Retorno a la inversión en la cooperación científica tecnológica: nuevas exigencias en la relación ciencia-sociedad en Colombia
- Myriam Sánchez Mejia
Cooperación científica y tecnológica, retorno de la inversión, ciencia y sociedad.
El estado actual de la ciencia económica y las mentiras inocentes
- Jorge Alberto López Arévalo; Óscar Peláez Herreros; Bruno Sovilla Sogne
Ciencias Económicas, Cambios tecnológicos, Enseñanza.
CONVERGENCIA TECNOLÓGICA COMO MOVIMIENTO INTRA E INTERSOCIAL: LAS PARADOJAS DE LOS PROCESOS DE INSERCIÓN DE LAS TIC EN LA EDUCACIÓN.
- Márcia Lopes Reis
Convergencia tecnológica, tecnología, ciencia, política pública de la educación.
Managing perishability in production-distribution planning : a discussion and review
- P. Amorim; H. Meyr; Bernardo Almada Lobo; C. Almeder
Managing perishability may represent a remarkable problem in supply chain management of a varied set of industries. In fact, perishability can influence, for example, productivity or customer service and it may happen to occur in one or more processes throughout the supply chain. In this paper a review on planning models that handle perishability issues in production and
distribution is conducted. The contribution of this paper is three-fold. First, a new framework for classifying perishability models based on multiple process
features is presented. Second, it draws the community attention to the importance of managing perishability in many different industries’ supply chains by...
Reseña de "El cuerpo transformado. Cyborgs y nuestra descendencia tecnológica en la realidad y en la ciencia ficción" de YEHYA, NAIEF
- Carlos Vladimir Zambrano
LA GESTIÓN COMERCIAL EN LAS ENTIDADES DE CIENCIA E INNOVACIÓN TECNOLÓGICA
- Rebeca E. Conde-García; José Joaquín Tristá-Moncada; Graciela Castellanos-Pallerols; Norma Hernández-Rodríguez
Gestión, comercialización, transferencia de tecnología.
ESTRATEGIA PARA LA GESTIÓN DE PROYECTOS DE COOPERACIÓN INTERNACIONAL EN UNA ENTIDAD DE CIENCIA E INNOVACIÓN TECNOLÓGICA
- Yilian Rodríguez-Clavijo; Liliana Gómez-Luna; Mónica Berenguer-Ungaro
Gestión de proyectos, estrategia, cooperación internacional.
CIÊNCIAS NO NONO ANO DO ENSINO FUNDAMENTAL: DA DISCIPLINARIDADE À ALFABETIZAÇÃO CIENTÍFICA E TECNOLÓGICA
- Tathiane Milaré; José de Pinho Alves Filho
Ensino de Ciências, Alfabetização Científica e Tecnológica, Nono Ano.
REVISÃO CRÍTICA ÀS ABORDAGENS A PARQUES TECNOLÓGICOS: ALTERNATIVAS INTERPRETATIVAS ÀS EXPERIÊNCIAS BRASILEIRAS RECENTES
- Conceição Aparecida Vedovello; Valéria Maria Martins Judice; Anne-Marie Dalaunay Maculan
Parques tecnológicos, Inovação tecnológica, Ciência e tecnologia.
A construção do Espaço Ibero-americano do Conhecimento, os estudos sobre ciência, tecnologia e sociedade e a política científica e tecnológica
- Renato Dagnino
Estudos sobre Ciência, Tecnologia e Sociedade, Política Científica e Tecnológica, Ibero-américa, Brasil, Argentina
A Comparison of Shear Mechanisms for the Prediction of Ductile Failure under Low Stress Triaxiality
NUMERICAL INTEGRATION ALGORITHM OF A NEW MODEL FOR
METAL PLASTICITY AND FRACTURE INCLUDING PRESSURE AND
LODE ANGLE DEPENDENCE
- L. Malcher; F. M. Andrade Pires; J.M.A. César de Sá; F.X.C. Andrade