Results 51 to 60 of about 3,638 (258)

The Effect of Elevated Temperature on the Lightweight Aggregate Concrete

open access: yesKurdistan Journal of Applied Research, 2017
The use of lightweight concrete has become widely spread in concrete structures in the last years. Fire can be considered as a destructive hazard that attack concrete structures.
Rahel Khalid Ibrahim
doaj   +1 more source

Fresh Properties of Lightweight Concrete and Lightweight Self Compacting Concrete Produced with Pumice Aggregate

open access: yesEurasian Journal of Science and Engineering, 2020
Lightweight aggregates have long been used widely in construction worldwide. One of the most widely used lightweight aggregate in concrete construction is Pumice.
Baban Jamal Hamasalh   +2 more
doaj   +1 more source

Flexoelectricity in Photoconversion: Fundamentals, Materials, and Outlooks

open access: yesAdvanced Science, EarlyView.
Mechanical bending of a flexible cantilever induces a strain gradient in the photoactive material. The resulting flexoelectric field couples with photovoltaic and photoconductive effects, modulating charge generation, separation, and collection. A comparative analysis of oxide perovskites, halide perovskites, and two‐dimensional materials is presented,
Xiang Huang, Feng Li, Rongkun Zheng
wiley   +1 more source

Experimental Study on Performance Influencing Factors and Reasonable Mixture Ratio of Desert Sand Ceramsite Lightweight Aggregate Concrete

open access: yesAdvances in Civil Engineering, 2020
The utilization of desert sand for making ceramsite lightweight aggregate concrete is proposed to make full use of local natural resources in the development of a new type of lightweight and load-bearing wall material with good energy conservation, waste
Songlin Zhang   +3 more
doaj   +1 more source

Absorption of Broadband Low‐Frequency Sound Beyond the Thermodynamics Limit: An Acoustic Resonator With Magnetic Bearing

open access: yesAdvanced Science, EarlyView.
This work presents a magnetic‐bearing acoustic resonator that overcomes the thermodynamics limit of sound absorption. By introducing tunable negative stiffness, it achieves broadband low‐frequency absorption within a compact cavity, far exceeding the performance achievable by classic mass‐tuned designs.
Ying Hu   +5 more
wiley   +1 more source

Paraborg: Paramedic Cyborg Insects for In Situ Emergency Drug‐Delivery

open access: yesAdvanced Science, EarlyView.
This work introduces Paraborg, a human‐supervised paramedic cyborg‐insect platform that combines controllable locomotion, onboard imaging, and an auto‐injection mechanism for in situ drug‐delivery. By demonstrating reliable navigation, target stabilization, injector launch, and multi‐insect teamwork, the study extends cyborg insects from survivor ...
H. Nhan Le   +5 more
wiley   +1 more source

Effect of porosity on physical properties of lightweight cement composite with foamed glass aggregate

open access: yesITM Web of Conferences, 2017
This paper reports on a study of physical properties of lightweight cement composite. We investigate the possibility of replacing traditional aggregate with Granulated Ash Aggregate (GAA) and above all with Granulated Expanded Glass Aggregate (GEGA). For
Kurpińska Marzena, Ferenc Tomasz
doaj   +1 more source

Livestock Multi‐Omics Integration: A Systematic Framework From Statistical Association to Causal Interpretation

open access: yesAdvanced Science, EarlyView.
A three‐tier livestock multi‐omics framework resolves four typical analytical pitfalls. Moving from statistical association through machine learning preprocessing to triple‐modal causal inference, it converts omics results into genomic selection and gene editing strategies to achieve One Health, underpinned by multi‐omics data, multimodal sequencing ...
Jiying Wen   +5 more
wiley   +1 more source

Thermodynamics and Kinetics in Host Design for Dendrite‐Free Zinc Metal Anodes

open access: yesAdvanced Science, EarlyView.
This review comprehensively summarizes recent advances in host design strategies for high‐performance zinc metal anodes, and deeply elucidates their thermodynamic and kinetic design principles from the perspective of surface modification, interface engineering, and spatial confinement.
Peng Xiao Sun   +9 more
wiley   +1 more source

Frost-resistance prediction model for stress-damaged lightweight aggregate concrete based on BPNN: a comparative study

open access: yesMaterials Research Express
With the depletion of natural resources and the requirement of higher strength-weight ratio, lightweight aggregate concrete has attracted more and more attention because of its good thermal properties, fire resistance and seismic performance.
Chun Fu, Qiushi Zhang
doaj   +1 more source

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