Utilização de alvos codificados do tipo ARUCO na automação do processo de calibração de câmaras

This paper presents a proposal for the automation of the camera calibration process, locating and measuring image points in coded targets with sub-pixel precision. This automatic technique helps minimize localization errors, regardless of camera orientation and image scale. To develop this technique, several types of coded targets were analyzed and the ARUCO type was chosen due to its simplicity, ability to represent up to 1024 different targets and availability of source code implemented with the OpenCV library. ARUCO targets were generated and two calibration sheets were assembled to be used for the acquisition of images for camera calibration. The developed software can locate targets in the acquired images and it automatically extracts the coordinates of the four corners with sub-pixel accuracy. Experiments were conducted with real data showing that the targets are correctly identified unless excessive noise or fragmentation occurs mainly in the outer target square. The results with the calibration of a low cost camera showed that the process works and that the measurement accuracy of the corners achieves sub-pixel precision.

Aplicação de um modelo numérico na otimização de fornos alimentícios usando o OpenFOAM®

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Effect of community-based physical exercise interventions carried out in primary helath care on plasma inflammatory biomarkers and cardiorespiratory fitness

Pós-graduação em Ciências da Motricidade - IBRC

Efeitos de três modalidades de atividade física na capacidade funcional de idosos

The aim of this study was to analyze and compare the effects of three types of physical activity: general physical activity, dance and weight training, in functional capacity in elderly. The sample included 94 seniors with a mean age of 64.06 ± 7.38 years, who participated in PROFIT. For the evaluation we used the battery of test from AAHPERD, which checks the levels of flexibility, coordination, agility and dynamic balance, strength endurance and general endurance before and after four months of intervention. The results indicated a maintained in the levels of functional components. The participants general physical activity group had better results on the components: strength endurance, agility and dynamic balance. It can be concluded that the practice of regular physical activity and systematized, regardless of the type may have a positive influence on the functional performance of elderly and can preserve their independence and autonomy.

Comportamento de genótipos de cana-deaçúcar com irrigação de salvamento em Goianésia-GO

Pós-graduação em Agronomia (Genética e Melhoramento de Plantas) - FCAV

Modulação autonômica, pressão arterial, aptidão funcional e qualidade de vida em mulheres com hipertensão arterial submetidas a um programa de Hatha Yoga

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Efeitos da vibração, do plano de oscilação e de uma sessão de uso da haste vibratória sobre o controle postural de mulheres idosas

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Nanocompósitos de biocelulose e seu uso

A presente invenção refere-se ao desenvolvimento de um nanocompósito de biocelulose e dietilditiocarbamato (CB-DETC) que é formado por uma matriz polimérica de celulose bacteriana com nanofibras revestidas com derivados de dietilditiocarbamato no preparo de um biocurativo para o controle de Leishmaniose Tegumentar. As principais propriedades observadas nesse biocompósito são a sua flexibilidade, fácil aplicação em lesões cutâneas, capacidade leishmanicida, ausência de toxicidade e liberação sustentada do composto ativo, reduzindo a necessidade de troca do curativo.

Uso de experimentos, confeccionados com materiais alternativos, no processo de ensino e aprendizagem de Física: Lei de Hooke

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

The briefing in paleodesign: selection and arrangement of data for the reconstruction of Paleovertebrates

Representing visually the external appearance of an extinct animal requires, for a reasonably reliable and expressive reconstitution, a good compilation and arrangement of the scientific conclusions on the fossil findings. It is proposed in this work an initial model of a briefing to be applied in a paleodesign process of a paleovertebrate. Briefing can be understood as a gathering of all necessary data to perform a project. We point out what must be known about the relevant structures in order to access all the data and the importance of such information. It is expected that the present briefing suggested might be faced with flexibility, serving as a facilitating interface of the relation between paleoartists and paleontologists.

Perfil antropométrico, aptidão motora e aeróbia de jogadores de futebol profissionais e juniores de Trinidad e Tobago

There is little information on Caribbean soccer players. Thus, the aim this study was to descriptive and to compare the anthropometric, motor and aerobic fitness profile between Trinidad and Tobago team professional and junior soccer players. Twenty six soccer players were evaluated (14 professional and 12 junior): anthropometric (height, body mass, BMI, body fat percent), flexibility (sit and reach), velocity (30 m), explosive strength (horizontal and vertical jump), anaerobic power (maximum, mean and minimum power, index of fatigue) and maximum aerobic power. Student Test-t to independent sample was used in statistical analyzes, considering 5% of significance (p<0,05). Results of professional and junior players were, respectively: height (180,6 ± 8,1; 175,0 ± 6,9 cm), body mass (77,1 ± 7,5; 70,6 ± 8,7 kg); BMI (23,6 ± 1,5 / 23,0 ± 1,6 kgm 2 ); body fat (11,9 ± 1,7; 11,6 ± 1,2 %); sitting and reaching (24,9 ± 10,3; 24,9 ± 7,7 cm); velocity (30 m) (4,61 ± 0,14; 4,66 ± 0,15 s); horizontal jump (263,4 ± 14,9; 239,7 ± 12,1 cm); vertical jump (58,7 ± 4,3; 54,6 ± 6,6 cm); maximum power (7,9 ± 0,9; 6,6 ± 0,8 w∙kg-1 ); mean power (6,5 ± 0,7; 5,4 ± 0,9 w∙kg-1 ); minimum power (5,3 ± 0,7; 4,3 ± 1,1 w∙kg-1 ); index of fatigue (33,0 ± 7,9; 34,8 ± 12,8 %); aerobic power (55,0 ± 3,2; 57,2 ± 4,8 ml∙kg-1 ∙min-1 ). Professional players presented higher horizontal jump and maximum, mean and minimum anaerobic power in comparing to the junior players. The highest values of power tests for the lower limbs may be relationship to the longer time of practice in the modality of professional players, which can also indicate a higher level of specialization, which gives priority to the training of power (force and velocity).

As diretrizes curriculares para os cursos de Educação Física no Brasil: uma breve revisão cronológica e análise desse processo sobre as implicações para a formação profissional

The law of Guidelines and Bases for National Education-LDB established the need to ensure at Universities a greater flexibility in the Organization of courses and careers, taking into account the heterogeneity of prior education and training, as well as the expectations and interests of students. Since the deployment of the first courses of Physical Education in Brazil, in the 30 's decade, the formation was only in Degree Course. On a pioneer way, resolution CFE 031987 allowed the Universities could organise their own pedagogical projects and curriculum, allowing even the Bachelor Course contemplating the dynamics of the evolution of the area and encouraging a change in attitudes of professionals. The Bachelor Course, with an offer of disciplines to other areas higher than education, openness also allowed to research, promoting an increasing interaction of the Physical Education with other professions od health. Physical education stands out as interareas instrument in the promotion of health and quality of life of the population. With the regulation of the Profession through the law No. 9696/98, grows the discussion around the definition of professional delimitations in this close relationship with other areas. With the need for a reformulation in teaching projects, Degree and Bachelor Courses, express the new curricular guidelines and resolutions of the MEC, as well as the professional delimitations by CONFEF for each formation. Given these aspects, the objective of the present study was to describe the chronology of such facts and a expose a critical opinion of the authors about the course and consequences of this process.

Análise da viabilidade do uso de biogás gerado a partir de dejetos bovinos em microturbinas para fins de geração, cogeração e trigeração de energia

The use of digesters has become an important alternative for the proper disposal of organic agricultural wastes, serving as a solution to some environmental and health problems. Furthermore, the process of digestion provides commercially valuable by products such as biogas and bio fertilizer. The generation of biogas from agricultural waste, and its use in power generation systems has aroused great interest in rural areas because it enables supply in whole or in large part the energy demand of ownership by reducing production costs. The advent of technology has brought new forms of energy conversion of biogas, as the use of micro turbines specifies to be fuelled with biogas derived from the decomposition of organic matter in digesters, since it has a low level of methane in its composition, and high degree of impurities such as hydrogen sulphide, which are harmful to equipment and reduce the calorific value of biogas. The use of micro turbines behind other advantages like low emissions, great fuel flexibility and low maintenance. This paper presents an analysis of the feasibility of using biogas generated from cattle manure in micro turbines to generate electricity. Behind also an assessment of the energy potential that each animal has on various uses of biogas, and forms of energy recovery from the exhaust gases of the micro turbine. Also conducts an evaluation of the energy savings that the use of biogas aggregates properties.

Controle flexível para conversores monofásicos conectados a sistemas elétricos distorcidos de baixa tensão

This paper presents a technique to add flexibility in the control of power electronic converters. The power converter can function as an active power filter, as a local power source interface or perform both functions i. e. mitigate current disturbances and inject power into the grid simultaneously, configuring it as a multifunctional device. The main goal is to extract the full capability of the grid connected power electronic converter to achieve maximum benefits. To achieve this goal, the orthogonal current decomposition of the Conservative Power Theory is used. Each orthogonal current component is weighted by means of different compensation factors (k_i), which are set instantaneously and independently, in any percentage by means of the load performance factors (λ_i), providing an online flexibility in relation to compensation objectives. Finally, to validate the effectiveness and performance the proposed approach, simulations and experimental results are presented.

Ensino da história e cultura afro-brasileira por meio do atletismo: contribuições de um curso de extensão à distância para professores de educação física

Pós-graduação em Desenvolvimento Humano e Tecnologias - IBRC