Results 61 to 70 of about 114,535 (299)

Performance Analysis of Abradable Coating Systems for Aircraft Gas Turbines

Advanced Engineering Materials, EarlyView.
Three CoNiCrAlY/YSZ/MgAl2O4 abradable liner configurations on a nickel‐superalloy are evaluated by thermal‐gradient cycling and incursion tests. Laser ablation of the bondcoat and/or Y2O3‐stabilized ZrO2 (YSZ) intermediate layer increases mechanical interlocking and bonding for thick topcoats.
Hanna Heyl, Daniel Emil Mack, Martin Tandler, Susanne Schrüfer, Robert Vaßen   +4 more
wiley   +1 more source

Incorporation of Selenium into Sol–Gel‐Derived Bioactive Glass: Influence on Glass Structure, Bioactivity, and its Selective Cytotoxicity

Advanced Engineering Materials, EarlyView.
Selenium was incorporated into a sol–gel‐derived bioactive glass to enable sustained therapeutic ion release. The selenium‐containing glass preserved bioactivity while selectively inducing cytotoxicity in osteosarcoma cells and maintaining osteoblastic viability.
Breno Rocha Barrioni, Thalita Marcolan Valverde, Talita Martins, Guilherme Mattos Jardim Costa, Alfredo Miranda de Goes, Marcello Rosa Dumont, Eduardo Henrique Martins Nunes, Marivalda de Magalhães Pereira   +7 more
wiley   +1 more source

Mechanized and irrigated coffee cultivation promotes physical subsurface constraints in Oxisols [PDF]

Revista Brasileira de Ciência do Solo
Soils of the Cerrados (Brazilian Savanna) are deep, well-structured, and well-drained, with flat to gently undulating terrain that favors mechanization for coffee cultivation. However, these soils are susceptible to compaction. This study aimed to assess
Katherine Martinez Escobar, Laís Maria Rodrigues Silva, Keise Duarte Bacelar de Morais, Júlio César Lima Neves, Teogenes Senna de Oliveira   +4 more
doaj   +1 more source

Solid‐State Diffusion and Intermetallic Phase Formation in Roll‐Bonded Mg–Zn Composites With Kirigami‐Patterned Inlay

Advanced Engineering Materials, EarlyView.
Mg–Zn composites with a thickness of 0.21 mm were fabricated using roll bonding of a kirigami‐patterned Mg alloy inlay within a Zn matrix. Thermal activation following this process led to the formation of tailored intermetallic structures, which provided the composite with enhanced flexural strength.
Yaroslav Frolov, Oleksandr Bobukh, Christian Klose, Florian Nürnberger, Hans Jürgen Maier   +4 more
wiley   +1 more source

Impact of Poultry Manure and NPK Fertilizer On Soil Physical Properties and Growth and Yield of Carrot

Journal of Horticultural Research, 2017
A field experiment was conducted in the forest-savanna transition zone of Nigeria from May to July 2014 and September to November 2015 to determine the impacts of poultry manure (PM) and NPK fertilizer on soil physical properties, and growth and yield of
Agbede Taiwo Michael, Adekiya Aruna Olasekan, Eifediyi Ehiokhilen Kevin   +2 more
doaj   +1 more source

Evaluation of Internal Adaptation and Degree of Porosity of Total Crowns After Cementation

Journal of Health Sciences, 2020
AbstractThe present study evaluated the marginal fit, the internal filling volume and the degree of porosity in cemented metallic total crowns. Then, 12 metal crowns cast in titanium (Ti) were made on bovine teeth with total preparations and 90° shoulder terminal line.
Larissa Dolfini Alexandrino, Edwin Fernando Ruiz Contreras, Avacir Casanova Andrello, Giovani De Oliveira Corrêa   +3 more
openaire   +2 more sources

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

Advanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares, Nadège Bouchonneau, Christian Jochum, Donald Radford   +3 more
wiley   +1 more source

Total Porosity Measured for Shale Gas Reservoir Samples: A Case from the Lower Silurian Longmaxi Formation in Southeast Chongqing, China

, 2018
Measuring total porosity in shale gas reservoir samples remains a challenge because of the fine-grained texture, low porosity, ultra-low permeability, and high content of organic matter (OM) and clay mineral.
Yiwen Ju, Shuangfang Lu, Fangwen Chen, Hongqin Zhao, Xue Ding   +4 more
core   +1 more source

Alterações de alguns atributos físicos e das frações húmicas de um Nitossolo vermelho na sucessão milheto-soja em sistema plantio direto Changes in some physical properties and in humic fractions of a Nitosol cropped with a millet - soybean succession under no-tillage

Revista Brasileira de Ciência do Solo, 2008
No Estado de São Paulo, restrições do regime de chuvas no período de outono-inverno e temperaturas elevadas limitam a produção e a manutenção de cobertura no solo, tornando importante estudar alternativas para a implantação eficaz do Sistema Plantio ...
Sandro Roberto Brancalião, Maria Helena Moraes   +1 more
doaj   +1 more source

Porosity and Water Saturation Estimation for Shale Reservoirs: An Example from Goldwyer Formation Shale, Canning Basin, Western Australia

Energies, 2020
Porosity and water saturation are the most critical and fundamental parameters for accurate estimation of gas content in the shale reservoirs. However, their determination is very challenging due to the direct influence of kerogen and clay content on the
Muhammad Atif Iqbal, Reza Rezaee
doaj   +1 more source