Results 21 to 30 of about 26,227 (254)

Hybrid Solar Cell/Triboelectric Nanogenerator Based on Stable Two‐Dimensional Covalent Organic Frameworks

Advanced Functional Materials, EarlyView.
This study highlights the integration of stable two‐dimensional covalent organic framework (COF) films as photoactive layers in hybrid nanoenergy devices. The results demonstrate their capacity to generate electricity under both sunny and rainy conditions, showcasing versatility and resilience.
Joab D. Guerrero, Susana Ramos‐Terrón, Salvador R. G. Balestra, José M. Malagón, David Aparicio, Lucia Velasco, Asterios Charisiadis, Dooshaye Moonshiram, Margarita Darder, Pilar Aranda, Bernd Wicklein, Gustavo de Miguel, Javier Pérez‐Carvajal, Eva M. García‐Frutos   +13 more
wiley   +1 more source

Spontaneous Helical Alignment of Smooth Muscle Cells to Form a Medial Layer for Engineered Microvasculature

Advanced Healthcare Materials, EarlyView.
Spontaneous helical alignment of smooth muscle cells is induced within resistance‐vessel‐sized channels patterned within a hydrogel. The extent of the cells’ orientation angle is dependent on the presence and composition of ECM proteins lining the channel wall and cell seeding density.
Victoria D. Vest, Katherine J. Young, Isabella K. Holtz, Mark Mc Veigh, James D. West, Leon M. Bellan   +5 more
wiley   +1 more source

EFFECT OF NEAR-SURFACE MOUNTED BARS ON THE STRUCTURAL BEHAVIOR OF ONE-WAY RC SLAB

Mağallaẗ Al-kūfaẗ Al-handasiyyaẗ, 2021
The present research paper deals with the finite element modelling of continuous one-way reinforced concrete (RC) slabs strengthened by near surface mounted (NSM) bars under static loads.
Hayder H. Kamonna, Douaa J. Abd Al-Sada
doaj   +1 more source

RETROFITTING PERFORMANCE OF REINFORCED CONCRETE ONE WAY SLAB

Jurnal Teknologi, 2016
Cracks in concrete structure have always been a big threat on the strength of the concrete. Crack is one of the common deterioration observed in reinforced concrete beams and slabs. Concrete cracking is a random process, highly variable and influenced by many factors.
Norliyati Mohd Amin, Nur Aqilah Aziz, Ilya Joohari, Anizahyati Alisibramulisi   +3 more
openaire   +1 more source

Spiro‐Phenothiazine Hole‐Transporting Materials: Unlocking Stability and Scalability in Perovskite Solar Cells

Advanced Materials, EarlyView.
Fluorene‐functionalized spiro‐phenothiazine (PTZ‐Fl) exhibits strong Li+ affinity and thermal stability, enabling a PCE of 25.75% in small‐area cells and 22.07% in 25 cm2 modules. Under ISOS‐L3 conditions, PTZ‐Flbased devices retain over 80% efficiency after 1000 hours, demonstrating superior stability and scalability compared to spiro‐OMeTAD for next ...
Javier Urieta‐Mora, Seung Ju Choi, Jaeki Jeong, Silvia Orecchio, Inés García‐Benito, Manuel Pérez‐Escribano, Joaquín Calbo, Likai Zheng, Minseop Byun, Seyeong Song, Gi‐Hwan Kim, Shaik M. Zakeeruddin, Seog‐Young Yoon, Yimhyun Jo, Agustín Molina‐Ontoria, Enrique Ortí, Nazario Martín, Michael Grätzel   +17 more
wiley   +1 more source

Structural Behavior of Reinforced Reactive Powder Concrete One-Way Slab

Diyala Journal of Engineering Sciences
Reactive powder concrete (RPC) is a new kind of concrete technique that has been enhanced and improved in recent decades which showing superior performance on structural systems. This paper shows experimental research to study the structural performance
Tahseen Ali Madhloom, Murtada A. Ismael
doaj   +1 more source

Mixed‐Metal Promotion in a Manganese‐Molybdenum Oxynitride as Catalyst to Integrate C─C and C─N Coupling Reactions for the Direct Synthesis of Acetonitrile from Syngas and Ammonia

Advanced Materials, EarlyView.
Transition metal oxy/carbo‐nitrides show great promise as catalysts for sustainable processes. A Mn‐Mo mixed‐metal oxynitride attains remarkable performance for the direct synthesis of acetonitrile, an important commodity chemical, via sequential C─N and C─C coupling from syngas (C1) and ammonia (N1) feedstocks.
M. Elena Martínez‐Monje, Wilson Henao, Tania Rodenas, Patricia Concepción, Virginia Pérez Dieste, Alexander Missyul, Giovanni Agostini, Gonzalo Prieto   +7 more
wiley   +1 more source

EFFECT OF TYPE AND POSITION OF CONSTRUCTION JOINT ON BEHAVIOR AND CAPACITY OF REINFORCED CONCRETE ONE WAY SLABS

Journal of Engineering and Sustainable Development, 2019
This work involves experimental study for the effect of construction joint on behavior of R.C. one way slabs. Eight slabs of 1000×450×70 mm were tested.
Ra'id Fadhil Abbas, Wisam Hulail Sultan   +1 more
doaj  

Two-Way Flexural Behavior of Donut-Type Voided Slabs

International Journal of Concrete Structures and Materials, 2018
Voided slab systems were developed using segmented void formers such as spherical or oval plastic balls for two-way slab applications. This type of slab is expected to behave like a general two-way reinforced concrete slab because it has segmented voids,
Joo-Hong Chung, Hyung-Suk Jung, Baek-il Bae, Chang-Sik Choi, Hyun-Ki Choi   +4 more
doaj   +1 more source

Exploring Analytical Hierarchy Process for Multicriteria Assessment of Reinforced Concrete Slabs

Applied Sciences, 2023
The decision regarding which slab type should be used in a building is generally made by the structural engineer, considering structural efficiency and compatibility with the architectural design, as well as the costs related to the amount of material ...
Ítalo Linhares Salomão, Placido Rogério Pinheiro   +1 more
doaj   +1 more source