Results 71 to 80 of about 718 (157)

Multistage converter with reduced switch voltage stress and diode current stress

IET Power Electronics, Volume 17, Issue 5, Page 618-639, 8 April 2024.
In this research work, a new power circuit is proposed by modifying the circuitry of C‐MSI converter. The proposed power circuit is developed to achieve low switch voltage stress, low diode current stress, low cost, and high efficiency compared to C‐MSI converter.
M. S. Bhaskar, Umashankar Subramaniam, Dhafer Almakhles, Sivakumar Selvam, M. Muhibbullah   +4 more
wiley   +1 more source

Caracterização de um solo salinizado em área irrigada da região Semiárida

Revista Verde de Agroecologia e Desenvolvimento Sustentável, 2015
A expansão das áreas irrigadas no semiárido acarreta sérios problemas de degradação dos solos, principalmente de salinização, reduzindo a capacidade produtiva das culturas. A compreensão de aspectos pedológicos é fundamental durante o manejo dessas áreas.
A. F. M. Vital, R. V. Santos, J. A. Lopes, T. Muraoka   +3 more
doaj   +1 more source

Breaking Boundaries with Ceramic Matrix Composites: A Comprehensive Overview of Materials, Manufacturing Techniques, Transformative Applications, Recent Advancements, and Future Prospects

Advances in Materials Science and Engineering, Volume 2024, Issue 1, 2024.
Ceramic matrix composites (CMCs) are a category of advanced materials which have gained significant interest recently due to their remarkable mechanical and thermal characteristics. These composites are composed of ceramic fibers, particles, or other types of ceramics incorporated in a ceramic matrix and have shown the capability to be implemented in ...
Adib Bin Rashid, Mahima Haque, S. M. Mohaimenul Islam, K. M. Rafi Uddin Labib, Pavel Chowdhury, Rajesh Kannan A   +5 more
wiley   +1 more source

Saturated hydraulic conductivity and steady-state infiltration rate database for Brazilian soils [PDF]

Revista Brasileira de Ciência do Solo
Soil saturated hydraulic conductivity (Ksat) and steady-state infiltration rate (SSIR) are essential and necessary soil properties for different geoscience applications.
Marta Vasconcelos Ottoni, Wenceslau Geraldes Teixeira, Aline Mari Huf dos Reis, Letícia Guimarães Pimentel, Luciana Rodrigues Souza, Jackson Adriano Albuquerque, Valdinar Ferreira Melo, Karina Maria Vieira Cavalieri-Polizeli, José Miguel Reichert, João Herbert Moreira Viana, Ademir Fontana, Lucas de Castro Medrado, Glenio Guimarães Santos, Luís Gustavo Henriques do Amaral, Lúcia Helena Cunha dos Anjos, José Coelho de Araújo Filho, Silvio Barge Bhering, Gabrielle Fernandes de Brito, Pedro Gomes de Campos do Valle, Pablo Nieto Campos, Adriana Monteiro da Costa, Jean Dalmo de Oliveira Marques, Alba Leonor da Silva Martins, Michele Bruna de Souza do Nascimento, Norberto Cornejo Noronha, Ricardo Duarte de Oliveira, Jeane Cruz Portela, Milson Evaldo Serafim, Marlen Barros e Silva, Sueli Rodrigues, Wilk Sampaio de Almeida, Margareth Lopes de Moraes, Nilton Curi   +32 more
doaj   +1 more source

ALTERAÇÕES NOS ATRIBUTOS QUÍMICOS DO SOLO PELO USO E MANEJO EM LATOSSOLO NA AMAZÔNIA

, 2017
The proper soil use and management are essential for a sustainable production, thus the pursuit for systems that minimize damages to the environment and improve soil fertility is continuous.
Marcos Rodrigues, F. H. Rabêlo, H. Castro, Delmonte Roborero, M. Carvalho, C. Roque   +5 more
semanticscholar   +1 more source

Performance Evaluation of Control Strategies for Autonomous Quadrotors: A Review

Complexity, Volume 2024, Issue 1, 2024.
The recent progress in the fields of sensor miniaturization, light materials, automatic control, and battery management systems has opened up new opportunities for low‐cost unmanned aerial vehicles (UAVs), such as quadrotors. In fact, quadrotors have transitioned from a primarily military application to being widely used almost everywhere.
Hamid Hassani, Anass Mansouri, Ali Ahaitouf, Xiaoping Liu   +3 more
wiley   +1 more source

APLICAÇÃO DA PROPOSTA DE ORDEM DOS ANTROPOSSOLOS NO BAIRRO DO GANCHINHO - CURITIBA/PR

Revista Brasileira de Cartografia, 2018
O avanço da urbanização e a interferência humana nas paisagens ocasionam alterações substanciais nos solos, os quais passam a apresentar características distintas dos solos remanescentes.
Luciano Augusto Mysczak, Eduardo Vedor de Paula   +1 more
doaj  

Angle-dependent SIBC model of metamaterial in conformal FDTD method

, 2022
To control the diffraction of a target illuminated by a radar wave, one technique is to consider metamaterials. Simulating their behaviour can be complex especially when they are applied as thin heterogeneous layers on the surface of the target.
Gaucher, Samuel, Guiffaut, Christophe, Reineix, Alain, Cessenat, Olivier   +3 more
openaire   +1 more source

Classificação de horizontes diagnósticos em níveis hierárquicos inferiores com base nas frações húmicas

Revista Brasileira de Ciência do Solo, 2011
Com desenvolvimento da classificação dos solos até o quarto nível categórico do Sistema Brasileiro de Classificação de Solos SiBCS, busca-se a elaboração e padronização de propostas para a classificação dos solos no quinto e sexto níveis categóricos ...
Ademir Fontana, Marcos Gervasio Pereira, Lúcia Helena Cunha dos Anjos, Vinicius de Melo Benites   +3 more
doaj   +1 more source

Characterization and classification of soils in the Taquari river basin - Pantanal region, state of Mato Grosso do Sul, Brazil

Revista Brasileira de Ciência do Solo, 2012
Among the soils in the Mato Grosso do Sul, stand out in the Pantanal biome, the Spodosols. Despite being recorded in considerable extensions, few studies aiming to characterize and classify these soils were performed.
Jolimar Antonio Schiavo, Antonino Hypólito Dias Neto, Marcos Gervasio Pereira, Jean Sérgio Rosset, Mateus Luiz Secretti, Luiz Carlos Ruiz Pessenda   +5 more
doaj   +1 more source