Results 91 to 100 of about 371,344 (316)

Intrinsic Coordination Architecture Governing Selectivity Divergence Between Extended and Single‐Site Electrocatalysts

open access: yesAdvanced Materials, EarlyView.
Catalyst coordination acts as a loaded dice biasing reaction selectivity. Single‐atom site catalysts lock intermediates in exposed configurations, enabling continued hydrogenation and favoring oxygen‐retaining products. In contrast, extended metal surfaces fully coordinate and shield reactive centers, promoting deoxygenation pathways. This work reveals
Chengyi Zhang, Ziyun Wang
wiley   +1 more source

Thermal studies on recycled aggregate concrete modified with carbonated and bio-deposited recycled aggregates

open access: yesEngineering and Applied Science Research, 2023
Several research studies have been conducted to investigate the hardened and durability characteristics of the normal aggregate concrete (NAC) and recycled aggregate concrete (RAC).
Jagan Sivamani, Thiyaneswaran Periasamy
doaj  

Stabilisation and solidification of contaminated soil using cement and sugarcane bagasse ash (SCBA) [PDF]

open access: yes, 2018
Soil that is contaminated with heavy metals has become a major issue worldwide. However, proper remediation techniques such as stabilisation/solidification (S/S) method can be employed and is capable of controlling these heavy metals.
Mohammad Azmi, Mohamad Azim
core  

Cell Adhesion by Design: Engineering Tissue Culture Scaffolds With Adhesion Cues

open access: yesAdvanced Materials Interfaces, EarlyView.
ABSTRACT In scaffold‐based tissue engineering, the matrix should provide adequate adhesion cues for cell attachment, spreading, and function. Given the multitude of adhesion receptors and the diversity of scaffolds, there are many approaches to render scaffolds adhesive, even though they are not all equivalent.
Dalia Dranseike   +3 more
wiley   +1 more source

Reliability-based Criterion for Maximum Reinforcement Ratio of Reinforced Concrete Beam Sections

open access: yesJournal of King Saud University: Engineering Sciences, 2000
This paper presents a reliability-based approach for the maximum reinforcement ratio of reinforced concrete flexural members. The study was based on sensitivity analysis of beams at their flexural limit state.
Abdulrahim Arafah
doaj   +1 more source

Compressive and tensile strength of reinforced сoncrete with basalt fiber [PDF]

open access: yes, 2015
Досліджено міцність цементного каменю, дисперсно армованого базальтовою фіброю. Виготовлено дослідні зразки з різним об’ємним умістом фібри. Проведено експериментальні дослідження з метою встановлення впливу об’ємного вмісту фібри на міцність за розтягу ...
Ivantyshyn, N.   +4 more
core  

Degradation Mechanisms in PEM Water Electrolysis: Diagnosis and Impact

open access: yesAdvanced Materials Technologies, EarlyView.
This review provides an analysis of degradation mechanisms in proton electrolyte membrane water electrolyzers (PEMWE), focusing on all key components. It discusses diagnostic and measurement techniques for evaluating degradation, less‐studied mechanisms, and an expert survey.
Annik Bernhardt   +11 more
wiley   +1 more source

Analysis of the Utilization of Air-Cooled Blast Furnace Slag as Industrial Waste Aggregates in Self-Compacting Concrete [PDF]

open access: yes, 2019
In this work, the effects of replacing the aggregates of self-compacting concrete by air-cooled blast furnace slag have been analysed. Different mixes have been manufactured by substituting the fine and coarse natural aggregates by air-cooled blast ...
Cifuentes-Bulté, Héctor   +4 more
core  

Highly Anisotropic Quasi‐Direct Organic Metal Halide Hybrids: A Platform for Polarization‐Sensitive Optoelectronics

open access: yesAdvanced Materials Technologies, EarlyView.
One‐dimensional C4N2H14PbBr4 is shown to have a quasi‐direct electronic band structure and strongly anisotropic transport with polarized broadband emission. A GW/Bethe–Salpeter excited‐state force formalism, supported by polarized Raman and temperature‐dependent photoluminescence, identifies low–frequency Pb–Br phonons that drive ultrafast exciton self‐
Rijan Karkee   +7 more
wiley   +1 more source

Prediction of concrete compressive strength using support vector machine regression and non-destructive testing

open access: yesCase Studies in Construction Materials
Performance assessment of existing building structures, especially concrete compressive strength assessment, is a crucial aspect of engineering construction for most industrialized countries. Non-destructive testing (NDT) techniques are commonly employed
Wanmao Zhang, Dunwen Liu, Kunpeng Cao
doaj   +1 more source

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