Results 81 to 90 of about 163,982 (274)

Influência dos aditivos de consolidação sobre as propriedades termomecânicas da matriz de concretos de projeção Influence of setting additives on the thermomechanical properties of wet shotcrete refractory castables' matrix

Cerâmica, 2004
A projeção a úmido de concretos refratários consiste na aplicação do material na forma de um jato de "spray" sobre uma superfície, resultando numa elevada taxa de instalação e eficiente compactação do material.
Y. A. Marques, D. Vasques Filho, R. G. Pileggi, V. C. Pandolfelli   +3 more
doaj   +1 more source

STUDY ON UTILIZING FLY ASH FOR CASTABLE REFRACTORY

, 2017
Fly ash could be utilized as alumina and silica sources material. It could be treated by the following processes of demagnetisation, sinterization, grinding, mixing with crushed bricks as well as fired cement to create acid based on castable refractory ...
AZIZ, MUCHTAR, ARDHA, I GUSTI NGURAH
core  

Detection of focal impaired awareness seizures using a biometric shirt

Epilepsia Open, EarlyView.
Abstract Objective In recent years, seizure detection using wearable technology has gained significant attention in research. Most studies, however, have focused on detecting generalized or focal to bilateral tonic–clonic seizures. This study evaluates the feasibility of using a biometric shirt to detect focal impaired awareness seizures (FIAS) by ...
Jérôme St‐Jean, Oumayma Gharbi, Dènahin Hinnoutondji Toffa, Thi Phuoc Yen Tran, Manon Robert, Dang Khoa Nguyen, Elie Bou Assi   +6 more
wiley   +1 more source

Propriedades termo-mecânicas de concretos refratários ligados por sílica coloidal Thermo-mechanical properties of colloidal silica-containing castable

Cerâmica, 2007
Os cimentos de aluminatos de cálcio (CAC) são os ligantes hidráulicos mais utilizados em concretos refratários. No entanto, a presença de CaO em sua composição pode limitar seu uso em elevadas temperaturas nos sistemas Al2O3-SiO2 e Al2O3-MgO.
M. R. Ismael, F. A. O. Valenzuela, L. A. Polito, V. C. Pandolfelli   +3 more
doaj   +1 more source

Modal characterization of crack network development in an MgO containing refractory castable

, 2023
International audienceDamage due to MgO hydration in castables has been studied by bar resonance and recently by Digital Image Correlation (DIC). The hydration reaction kinetics was studied via principal component analyses (PCA) applied to DIC results of
Vargas, Rafael, Hild, François, Canto, Rodrigo, Bresciani, Sciuti, Vinicius, Fiocco   +3 more
core   +1 more source

Flexible photocatalytic materials: From substrate engineering to multi‐field synergistic enhancement

FlexMat, EarlyView.
This review examines flexible photocatalytic systems, covering substrate evolution from polymers to biomass, fabrication methods like electrospinning, and key mechanical and optoelectrochemical metrics under deformation. Enhancement strategies are critically discussed, followed by applications in energy conversion, environmental remediation, and ...
Weiqi Wang, Xinrong Zhang, Jing Zhao, Songcan Wang   +3 more
wiley   +1 more source

The effect of aggregate aspect ratio and temperature on the fracture toughness of a low cement refractory concrete

Materials Research, 2003
This work investigated the influence of the aggregate's aspect ratio on the fracture behavior of a low cement aluminum silicate refractory castable treated at two different temperatures (110 °C and 1000 °C).
Laura Brum Prata, Walter Libardi, João Baptista Baldo   +2 more
doaj   +1 more source

Determinants of Early Renal Function Recovery After TIPS in Patients With Portal Hypertension

The Kaohsiung Journal of Medical Sciences, EarlyView.
ABSTRACT Renal dysfunction frequently occurs in patients with portal hypertension and is linked to unfavorable clinical outcomes. Transjugular intrahepatic portosystemic shunt (TIPS) has the potential to enhance renal perfusion through portal decompression; however, factors predicting early improvement in renal function remain insufficiently defined ...
Meng Jia, Yang Luo, Zhao‐Yang Tan, Xiao‐Ling Zhou, Xi‐You Zhang, Jing‐Ying Sun, Ye Du   +6 more
wiley   +1 more source

Microstructural X-Ray Computed Tomography Investigation of the Defect Evolution in Refractory Castings Based on Andalusite

Ceramics
X-ray computed tomography (XRT) has gradually established its position as a non-destructive and, therefore, reproducible three-dimensional (3D) investigation technique, allowing for material- and geometry-independent applications.
Anita Razavi, Vanessa Hopp, Dominik Hahn, Almuth Sax, Peter Quirmbach   +4 more
doaj   +1 more source

Resistência à erosão de concretos refratários de alta alumina nanoligados Erosion resistance of nanobonded high-alumina refractory castables

Cerâmica, 2011
A avaliação do emprego de concretos refratários nanoligados em aplicações onde ocorre desgaste por erosão é de importante interesse devido aos estudos recentes que indicam esta rota como uma alternativa à substituição do cimento de aluminato de cálcio ...
V. A. A. dos Santos, E. Prestes, J. Medeiros, J. L. B. Veiga, V. C. Pandolfelli   +4 more
doaj   +1 more source