Results 21 to 30 of about 95,114 (214)

MINERAIS CONTAMINANTES DO CAULIM DA MINA IPIXUNA, NO ESTADO DO PARÁ: CARACTERÍSTICAS E INTERFERÊNCIAS NO BENEFICIAMENTO MINERAL

Holos, 2014
A mina Ipixuna extrai caulim sedimentar e produz matéria-prima final para a indústria do papel. O minério varia devido a presença de minerais contaminantes.
Sydney Sabedot, RUBENS MÜLLER KAUTZMANN, CARLOS OTÁVIO PETTER, CARLOS HOFFMANN SAMPAIO   +3 more
doaj   +1 more source

Targeting Amastigote and Trypomastigote Phases: Multi‐Epitope Vaccine Strategy Against Trypanosoma cruzi

Biotechnology and Applied Biochemistry, Volume 73, Issue 5, Page 2457-2481, October 2026.
ABSTRACT Effective vaccines against Trypanosoma cruzi, the causative agent of Chagas disease, are urgently needed. Here, we report the design and in silico validation of a novel multiepitope vaccine construct targeting the key surface proteins ASP‐2 and gp82. Using a comprehensive immunoinformatics pipeline, we identified and selected 38 potent T‐cell (
Maria Karolaynne da Silva, Caio Patrício de Souza Sena, Davi Serradella Vieira, Magdi E. A. Zaki, Leow Chiuan Yee, Shahina Akter, Umberto Laino Fulco, Jonas Ivan Nobre Oliveira, João Firmino Rodrigues‐Neto   +8 more
wiley   +1 more source

Reproductive Biology and Growth Patterns of Pontoporia blainvillei (Artiodactyla, Pontoporiidae) From Santa Catarina State, Southern Brazil

Marine Mammal Science, Volume 42, Issue 4, October 2026.
ABSTRACT This study evaluated reproductive parameters and growth patterns of male and female franciscana dolphins, Pontoporia blainvillei, in Santa Catarina State, southern Brazil, between Franciscana Management Area (FMA) II and III. We analyzed ovarian and testicular characteristics, counted the tooth growth layer groups, and constructed growth ...
E. Cordeiro, R. L. Paitach, V. R. M. Conversani, G. Rogge‐Renner, P. V. Castilho, M. J. Cremer   +5 more
wiley   +1 more source

Testes de separação baseada em sensores com minério de ferro

Cadernos Cajuína
A separação baseada em sensores (ou SBS) apresenta-se como uma alternativa para a concentração de minérios granulados, utilizando sensores óticos e de transmissão por raios X (XRT) para discriminar partículas com base em diferenças de massa específica e
Maria Emília Fernandes Fonseca, Elenice Maria Schons Silva, André Carlos Silva   +2 more
doaj   +1 more source

Conversor Ca-cc Trifásico Bidirecional de Único Estágio com Correção de Fator de Potência e Isolado em Alta Frequência

Eletrônica de Potência, 2016
Este artigo apresenta o estudo e a implementação de um novo conversor CA- CC trifásico bidirecional de único estágio com correção de fator de potência e isolado em alta frequência.
Bruno Ricardo de Almeida, Demercil S. Oliveira Jr.   +1 more
doaj   +1 more source

Exploring the Use and Impact of Composite Materials in Robotics: A Systematic Review

Journal of Field Robotics, Volume 43, Issue 6, Page 4037-4060, September 2026.
ABSTRACT Lightweight and high‐strength materials are important in robotics, as structural design impacts efficiency, payload capacity, and energy consumption. Composite materials, with their superior stiffness‐to‐weight ratios and multifunctional properties, offer clear advantages over conventional metals and polymers.
Doglas Negri, Gabriela Wessling Oening, Felipe Augusto Carvalho de Faria, Sarah Maria Schroeder, Ricardo De Medeiros   +4 more
wiley   +1 more source

Biobased Polyurethane Films Based on Andiroba (Carapa guianensis) and Buriti (Mauritia flexuosa) Oil Polyols

Journal of Applied Polymer Science, Volume 143, Issue 30, August 10, 2026.
Polyurethane films were prepared from andiroba (Carapa guianensis) and buriti (Mauritia flexuosa) oil‐derived polyols, emphasizing their potential as bio‐based materials. UV–Vis analysis indicates the retention of carotenoid‐related chromophoric features within the polymer matrix.
João A. P. da Silva, Amanda L. Ferreira, Felipe F. C. Tavares, Chana M. da Silva, Cesar L. Petzhold, Nilo S. M. Cardozo   +5 more
wiley   +1 more source

Suspected lymphoid leukosis visceral lymphoma with intestinal and ovarian involvement in a chicken

Veterinary Record Case Reports, Volume 14, Issue 3, August 2026.
Abstract An adult hen from a small poultry flock was submitted for diagnostic investigation because of nonspecific clinical disease and suspected neoplasia. At necropsy, the bird had ascites, splenomegaly, severe intestinal adhesions, nodular intestinal lesions and ovarian masses. Histopathology revealed extensive infiltration of the intestinal mucosa,
Thomas Salles Dias, Taís da Silva Lopes Chagas, Davi Lemos Monteiro, Carlos Henrique Campello Costa, Aniesse Siva Aguiar, Dayse Lima da Costa Abreu   +5 more
wiley   +1 more source

Eocene to Miocene U‐Pb Geochronology Evolution of the Rio Grande Rise, Southwestern Atlantic: A Paleoceanographic Approach

Paleoceanography and Paleoclimatology, Volume 41, Issue 8, August 2026.
Abstract The Rio Grande Rise (RGR) is a major submarine feature in the South Atlantic that plays an important role in regional oceanographic dynamics. This study presents new U‐Pb geochronology of sedimentary rocks from the RGR, offering direct age constraints on carbonate and apatite embedded within Fe‐Mn crusts and associated foraminifera fossils ...
Giovanna Orletti Del Rey, Roberto Ventura Santos, Lucieth Cruz Vieira, Isabela Moreno Cordeiro Sousa, Antônio Cosme Del Rey, Guilherme de Oliveira Gonçalves, Elton Luiz Dantas, Paola Ferreira Barbosa, Eugênio Pires Frazão   +8 more
wiley   +1 more source

Co-processamento em cimenteira

, 2016
A imagem ilustra a realização de co-processamento, uma técnica de incorporação de resíduos sólidos aos fornos de fabricação de cimento. O co-processamento é uma destinação final ambientalmente adequada que resulta na destruição térmica dos resíduos ...
Vilhena, André, Compromisso Empresarial para Reciclagem (CEMPRE)   +1 more
core   +1 more source