Results 51 to 60 of about 18,891 (257)

Efficient Management of Egg Shell and Conch Shell Wastes by Utilization as Bio Fillers in Eco Friendly Gypsum Mortar

open access: yesInternational Journal of Engineering and Advanced Technology, 2019
The efficient waste management and recovery of waste materials are the most important goals of sustainable environmental development. The egg shells and conch shells are solid wastes being deposited in enormous amount which creates large disposal problem.
Vivek S, Sophia M
openaire   +1 more source

Excitation‐Selective Hydrochromic Upconversion in Zero‐Dimensional Metal Halides

open access: yesAdvanced Science, EarlyView.
Excitation wavelength dictates whether moisture speaks. In zero‐dimensional metal halides, the same humidity leaves the upconversion emission unchanged under 980 nm excitation yet triggers a distinct green‐to‐red shift under 1550 nm. This excitation‐selective hydrochromism, governed by the absorption at each wavelength, enables stimulus‐dependent ...
Joo Hyeong Han   +6 more
wiley   +1 more source

Semi‐Artificial Photosynthesis Enables Light‐Driven Biomanufacturing in Non‐Photosynthetic Bacteria

open access: yesAdvanced Science, EarlyView.
A non‐invasive strategy exploits endogenous H2S metabolism in B. subtilis to drive in situ CdS biomineralization, enabling tight bio‐abiotic contact without genetic modification. Light harvested by the biomineralized nanoparticles powers NADPH regeneration, elevating 2’‐fucosyllactose and surfactin titres two‐ to three‐fold.
Jie Zheng   +8 more
wiley   +1 more source

Synergistic Optimization of Cathode Composite Architecture and Stack Pressure for High‐Performance All‐Solid‐State Chloride‐Ion Batteries

open access: yesAdvanced Energy Materials, EarlyView.
Composite cathode engineering and stack pressure co‐optimization enable a high‐performance all‐solid‐state chloride‐ion battery based on a VOCl/CsSn₀.₉In₀.₀₆₇Cl3/In architecture, delivering 169 mAh g−1 with 500‐cycle durability. Electrode‐resolved impedance tracking via distribution of relaxation times revealed progressive interphase and charge ...
Soutam Panja   +7 more
wiley   +1 more source

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

open access: yesAdvanced 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   +12 more
wiley   +1 more source

Laboratory and On-Site Tests for Rapid Runway Repair

open access: yesApplied Sciences, 2017
The attention to rapid pavement repair has grown fast in recent decades: this topic is strategic for the airport management process for civil purposes and peacekeeping missions.
Federico Leonelli   +6 more
doaj   +1 more source

Decoupling Thermodynamic and Kinetic Moisture Instability Reveals a Critical Humidity Threshold for Sodium Thiophosphate Solid Electrolyte

open access: yesAdvanced Energy Materials, EarlyView.
A quantitative exposure‐heat treatment framework identifies a critical humidity threshold (15%RH) and heat treatment temperature (80°C) that governs the recoverability of air‐exposed Na3PS4, revealing the decoupled thermodynamic and kinetic contributions to its moisture stability.
Boling Liu   +10 more
wiley   +1 more source

Effects of Green Mussel Shells (Perna viridis) and Chitosan Extracted from Milkfish (Chanos chanos) Scales on the Compressive Strength of Mortar and Concrete

open access: yesResources
It is estimated that in the construction industry, cement production contributes to 7% of global CO2 emissions. Because of this, alternative materials, including biological resources and wastes, are being explored to determine their viability as ...
Bernardo Lejano   +5 more
doaj   +1 more source

Sustainable and cost-effective cement-based composite utilizing calcined Iraqi date palm frond waste ash [PDF]

open access: yesEngineering and Technology Journal
Ecological implications posed by the cement industry, biomass ashes, and agricultural waste are growing with emerging concerns. Hence, this paper analyzes and evaluates the characterization of Iraqi date palm frond waste ash (PFWA) and its potential ...
Laith Mahmmod, Waleed Abbas
doaj   +1 more source

Thixotropy Management in PVA Fiber-Reinforced Mortars for 3D Printing Applications

open access: yes
Three-dimensional printing (3DP) has attracted growing attention in the construction industry due to labor shortages and the need for greater efficiency. However, there have been only a few previous studies focused on mixture design strategies that address the thixotropy of fiber-reinforced mortars for 3DP.
Shoma Uehara   +4 more
openaire   +1 more source

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