Results 51 to 60 of about 41,793 (216)

Influences of Under-Track Foundation Diseases on Track System

Buildings
In order to study the influence of the under-track foundation disease on the track system, based on the CRTS II slab ballastless track in ABAQUS, this paper analyzes the influence of the overall temperature, temperature gradient, CA mortar layer ...
Jinbao Yao, Xiaoteng Sun, Zhikun Song, Yueyue Chen   +3 more
doaj   +1 more source

Elementary characterization of samples of Portland cement, natural gypsum and phosphogypsum mortars from Brazil

Brazilian Journal of Radiation Sciences, 2019
Portland cement, the basic ingredient of concrete and is manufactured by crushing, milling and proportioning limestone, sand, clay, iron ore and secondary materials such as shells, chalk or marl combined with shale slate or blast furnace slag, fly ash ...
Danielle Cristine Narloch, Sergei Anatolyevich Paschuk, Janine Nicolosi Corrêa, Juliana Machado Casali, Wellington Mazer, Catarina Alzira Montenegro Peddis Torres, Alessandro Luiz de Lara, Gustavo Macioski, Allan Felipe Nunes Perna   +8 more
doaj   +1 more source

Engineering Na‐Rich P2‐Type Layered Oxides Through Li/Ti Dual Doping for Oxygen Redox Activation and Superior Structural Stability

Advanced Energy Materials, EarlyView.
P2‐type sodium layered oxides have potential for high‐voltage operation but suffer from structural instability and capacity fading. This work demonstrates that synergistic Li and Ti co‐doping enhances sodium inventory, suppresses detrimental phase transitions, and activates reversible lattice oxygen redox.
Rishika Jakhar, Shrestha Ghosh, Adesh Rohan Mishra, Shristi Pradhan, Debalina Sarkar, Yuanlong Bill Zheng, Zengqing Zhuo, Tianyi Li, Lu Ma, Minghao Zhang, Shyue Ping Ong, Matthew Li, Leeann Sun, Prabhat Thapliyal, Jing Wang, Abhik Banerjee, Ying Shirley Meng   +16 more
wiley   +1 more source

Decoupling Chemical and Mechanical Contributions to Capacity Fading in Ni‐Rich Cathodes for Sulfide‐Based All‐Solid‐State Batteries

Advanced Energy Materials, EarlyView.
Ni‐rich cathodes in sulfide‐based ASSBs undergo intertwined (electro)chemical and mechanical degradation. Here, a new diagnostic framework is presented to decouple each contribution by partitioning capacity fading into charge and discharge fading.
Jangwhan Seok, Chanyou Chung, Hyunbeom Lee, Subin Ahn, Seongeun Lee, Sangbin Park, Sunhyun Hwang, Jaeyoung Kim, Jeonghyun Seo, Sungwoo Noh, Juyeong Seong, Sangheon Lee, Won‐Sub Yoon   +12 more
wiley   +1 more source

Assessment of industrial wastes in mortar layers deposited on stainless steel sheets of sinks Avaliação de resíduos industriais em camadas de argamassas depositadas sobre chapas de aço inoxidável de pias

Cerâmica, 2004
This work deals with the properties of alternative mortars destined to strengthen metal sheets of sinks. The performance of these mortars was compared to that of a basic mortar made of cement, sand, and water, named standard mortar (SM).
E. Gemelli, S. Lourenci, M. V. Folgueras, N. H. Almeida Camargo   +3 more
doaj   +1 more source

Electrochemical and Thermal Interplay in Blended Cathodes for All Solid‐State Batteries

Advanced Energy Materials, EarlyView.
This work analyzes blended LFP‐NMC cathodes for all solid state batteries, revealing their balanced rate performance and enhanced thermal properties. Operando X‐ray diffraction studies uncovered lithiation gradients and asymmetric charging effects due to kinetic limitations.
Simon Si Ming Ji, Zhuo Li, Abhinand Ayyaswamy, Sascha Kremer, Shintaro Inaba, Ana G. Claus, Dayoung Jun, Se Hwan Park, Moonseong Kim, Bairav S. Vishnugopi, Hui Zhong, Sanjit Ghose, Michael Drakopoulos, Nghia T. Vo, Zhong Zhong, Jürgen Janek, Partha P. Mukherjee, Kelsey B. Hatzell   +17 more
wiley   +1 more source

A Cementless Binder Based on High-Calcium Fly Ash, Silica Fume, and the Complex Additive Ca(NO₃)₂ + MgCl₂: Phase Composition, Hydration, and Strength

Buildings
This study aimed to comprehensively investigate the properties of a binder based on high-calcium fly ash and silica fume with a complex additive consisting of calcium nitrate and magnesium chloride.
Yurii Barabanshchikov, Kseniia Usanova
doaj   +1 more source

Multifunctional Matrix‐Activated Electrodes Enabling Efficient Proton Transport and Durable Low‐Pt Operation for High‐Temperature Proton Exchange Membrane Fuel Cells

Advanced Energy Materials, EarlyView.
This work introduces a CeHP‐enabled multifunctional matrix‐activated electrode (MME) for high‐temperature PEM fuel cells, forming an electrochemically and mechanically functional matrix within the catalyst layer. The design increases peak power density by 38% and reduces voltage decay by 62% at 240 °C, while using only 40% of the Pt loading of a ...
Gyeongseok Gwak, Sunjin Park, Joonbyum Kim, Hena Lee, Jihyeon Ok, Chae Young Lee, JunHwa Kwon, Jong Geun Seong, Sung Pil Yoon, Suk‐Woo Nam, Hansung Kim, Katie Heeyum Lim, So Young Lee   +12 more
wiley   +1 more source

Structure and Spectroscopic Characterisation of Phenanthroline‐Based Iodobismuthate(III) Complexes Utilised for Raw Acoustic Signal Classification

Advanced Intelligent Discovery, EarlyView.
Memristors based on trimethylsulfonium (phenanthroline)tetraiodobismuthate have been utilised as a nonlinear node in a delayed feedback reservoir. This system allowed an efficient classification of acoustic signals, namely differentiation of vocalisation of the brushtail possum (Trichosurus vulpecula).
Ewelina Cechosz, Gisya Abdi, Andrzej Sławek, Marlena Gryl, Konrad Szaciłowski   +4 more
wiley   +1 more source

Effect of the Electrochemical Migration of Colloidal Nano-SiO2 on the Durability Performance of Hardened Cement Mortar

International Journal of Electrochemical Science, 2015
Colloidal nano-silica was used as a superficial treatment in cement mortar sample by electrochemical migration under an electric field. An electric circuit was configured in order to perform direct current through a hardened mortar sample and to force ...
I. Díaz-Peña, R. Gonzalez-Lopez, M. Sanchez, M.C. Alonso, A. Zaldivar-Cadena, J. Hernández-Sandoval, A.M. Guzmán   +6 more
doaj   +1 more source