Results 111 to 120 of about 106,789 (300)

A New Correlation Between GRB X-Ray Flares And The Prompt Emission

, 2013
From a sample of GRBs detected by the $Fermi$ and $Swift$ missions, we have extracted the minimum variability time scales for temporal structures in the light curves associated with the prompt emission and X-ray flares.
Dhuga, K. S., MacLachlan, G. A., Parke, W. C., Shenoy, A., Sonbas, E.   +4 more
core   +1 more source

Natural South African iron‐rich sand as a functional catalyst in hybrid photocatalytic wet peroxide oxidation technology for the degradation of methyl orange dye pollutant

The Canadian Journal of Chemical Engineering, EarlyView.
This research explored South African iron‐rich sand (SAIRS) as a natural catalyst for light‐mediated wet peroxide oxidation of methyl orange dye in wastewater and at an optimized of conditions of 3500 mg/L catalyst dose, 6 mM H2O2, and pH 2.5, SAIRS achieved 94% methyl orange degradation within 90 min under visible light.
Aaliyah Ebrahim, Stephen Sunday Emmanuel, Alicia Levana Dorling, Shepherd M. Tichapondwa   +3 more
wiley   +1 more source

Green and sustainable synthesis of magnetite from copper slag via citrate complexation for methylene blue dye removal from water

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study proposes a novel, green, and sustainable method for synthesizing magnetic iron oxides from metallurgical copper slag (CS), leveraging its iron content as a valuable resource. Iron was extracted via acid leaching using edible citric acid (ECA), forming a citrate–iron complex (CSL), which was subsequently thermally decomposed at 300°C
Melisa Portilla‐Sangabriel, Karen Valencia García, Tania‐Ariadna García‐Mejía, Agileo Hernández‐Gordillo, Rosa‐María Ramírez‐Zamora   +4 more
wiley   +1 more source

The Effect of Electrolyte pH and Impurities on the Stability of Electrolytic Bicarbonate Conversion

ChemSusChem, Volume 18, Issue 6, March 15, 2025.
The performance of bicarbonate electrolysis is largely controlled by the electrolyte inlet pH, the distance between the membrane and electrode, and the impurities present in the electrolyte. By complexing trace metal ions with ethylenediaminetetraacetic acid (EDTA), stability can significantly be improved and longer term operation can be achieved ...
Iris Burgers, Jón Jónasson, Earl Goetheer, Ruud Kortlever   +3 more
wiley   +1 more source

RILIEVO E VISUALIZZAZIONE 3D DI DATI DIAGNOSTICI CON STRUMENTI OPEN SOURCE IL CASO DELLA TOMBA DELLA SCIMMIA A CHIUSI

Archeomatica, 2014
This paper aims to demonstrate the usefulness of digital reconstructions in the visualization and interpretation of analytical data obtained in science conservation projects.
Cristina Giancristofaro, Luciano Marras, Vincenzo Palleschi   +2 more
doaj  

GEOCHEMICAL CHARACTERISATION OF SOIL USING XRF: IMPLICATION FOR GEOTECHNICAL PROPERTIES

e-Zbornik. Elektronički Zbornik Radova Građevinskog Fakulteta
This study investigates the geochemical and geotechnical properties of soils from Uwelu, Benin City, Nigeria (6.3861°N, 5.5827°E, 107 m altitude), to assess their engineering relevance.
David Idiata, Ngozi Kayode - Ojo, Ehizonomhen Okonofua   +2 more
doaj   +1 more source

Engineering the Lattice and Electronic Configurations of N‐Rich‐CoMoCN by Mo Doping and N Enrichment for Enhanced Water Splitting

EcoEnergy, EarlyView.
This study design Mo‐doped and N‐rich‐CoMoCN bimetal for bi‐functionally efficient overall water splitting catalysts by constructing an active site and engineering the interfacial Co6Mo6C2/Co heterojunction in a N‐doped porous carbon matrix and study on the performance of catalyst for electrocatalytic.
Huimin Yang, Yue Xiao, Zhuo Wang, Mingfang Zhang, Haimei Xu, Yunzhao Fan, Chao Feng, Qingcheng Hu, Chunhua Yuan, Yang Fu, Lingfeng Zhu, Songbo Li, Tianyi Ma   +12 more
wiley   +1 more source

Engineering Nanoclay Edges to Construct Effective Polysulfide‐Trapping Interface for Markedly Enhanced Electrochemical Energy Storage

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A capsule‐shaped silicate clay (H‐ATP‐N2) rich in protonated edge hydroxyl groups (‐OH2+) is synthesized through a two‐step process involving microwave‐assisted acid treatment and N2 plasma etching to fibrous natural attapulgite. The H‐ATP‐N2 host inhibits the shuttle effect owing to the dominant adsorption mechanism–Lewis acid–base interaction between
Hongjie Xu, Chenggong Zheng, Xiaofeng Zhu, Yalu Li, Zhongzheng Yang, Xiao Wang, Yuping Tong, Xi Chen, Yangyu Liu, Shilin Zhang, Junhua Hu, Guosheng Shao   +11 more
wiley   +1 more source

Redistributing Cobalt and Tungsten From WC–Co Soft Scrap Toward Sustainable Cathode and Coating Materials for Lithium‐Ion Batteries

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A sustainable upcycling strategy transforms tungsten carbide–cobalt (WC–Co) soft scrap into high‐performance cathode materials. Recycled Co with trace nickel (Ni) is resynthesized into stabilized LiCoO2 with superior high‐voltage durability, while the recovered tungsten is further utilized as tungsten trioxide to enhance Ni‐rich cathode interfaces ...
Seulgi Kim, Kyoung Sun Kim, Young‐Sang Yu, Ingyu Choi, Seungo Jeong, Eun‐Jung Shin, Seung‐Hyun Kim, Sung‐Hak Jo, Seung‐Ho Yu, Hyungsub Kim, Dongju Lee   +10 more
wiley   +1 more source

Nanofiber PVA‐Based Membranes Incorporating Functionalized Spanish Broom Derivatives for Sustainable Water Purification

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study investigates Spanish broom (Spartium junceum) as a renewable source for electrospun composite membranes in sustainable water purification. MCC and biochar were functionalized with eco‐friendly precursors and nanomaterials (i.e., HNT, β‐CDs) to develop hybrid PVA nanofiber composites.
Giulia Rando, Silvia Sfameni, Jozefien Geltmeyer, Alessandra Palella, Lorenzo Spadaro, Alberto Riminucci, Karen De Clerck, Maria Rosaria Plutino   +7 more
wiley   +1 more source