Results 21 to 30 of about 7,497,690 (312)

Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers

FEBS Letters, EarlyView.
Computer image of the Rosalind Franklin Rover of ESA's ExoMars mission. ExoMars is scheduled to land on planet Mars in Oxia Planum in 2029. This area represents an interesting spot to look for biosignatures. Investigations of ExoMars include measurement on molecular chirality. We show that chiral chloroalkanes, that have been identified on Mars, can be
Asma Merzougui, Agnes Banreti, Armelle L. Ernst, Guillaume Leseigneur, Uwe J. Meierhenrich   +4 more
wiley   +1 more source

Spatiotemporal fractional numerical simulation of sulfate contamination remediation in goaf water from the abandoned Ningwu coal mine

Shuiwen dizhi gongcheng dizhi
In response to the problem of sulfate contamination in the goaf water of the abandoned Ningwu coal mine, this study investigated the impact of different treatment measures on the migration and diffusion of pollutants, providing a scientific basis for ...
Fenggang DAI, Chongyao WANG, Aihua WEI, Fawang ZHANG, Yu LIU   +4 more
doaj   +1 more source

A Practical Noise2Noise Denoising Pipeline for High‐Throughput Raman Spectroscopy

Advanced Engineering Materials, EarlyView.
A lightweight and reproducible denoising pipeline for high‐throughput Raman spectroscopy is introduced, based on a 1D convolutional autoencoder trained with a Noise2Noise strategy. Using only repeated short‐exposure acquisitions, the method suppresses stochastic noise without reference spectra, enabling reliable spectral reconstruction while preserving
David Martin‐Calle, Cesar Alvarez‐Llamas, Vincent Motto‐Ros, Christophe Dujardin, Jérémie Margueritat, David Rodney   +5 more
wiley   +1 more source

Electrochemical Pathways for Nitrate Conversion to Ammonia: From Environmental Challenges to Ammonia Economy

Advanced Functional Materials, EarlyView.
This perspective presents recent advances in electrocatalytic nitrate reduction, focusing on reaction mechanisms, catalyst design, and electrolyzer configurations. Key challenges in selectivity, stability, and practical wastewater treatment are highlighted, while future directions for advancing sustainable ammonia synthesis and nitrate remediation are ...
Xintong Li, Yunpeng Zuo, Xiaoran Zhang, Jieqiong Shan, Kenneth Mei Yee Leung, Bin Liu, Peter Strasser, Adrian Fisher, Zonglong Zhu, Xin Wang   +9 more
wiley   +1 more source

Advanced MXene‐Based Multifunctional Nanoarchitecture Materials Engineered for Adsorptive Cleanup of Hazardous Radioactive Pollutants: A Comprehensive Critical Review

Advanced Materials Interfaces, EarlyView.
This work critically reviews MXenes as highly effective multifunctional nanomaterials for the adsorption of radio‐contaminants, demonstrating a remarkable adsorption capacity of up to 1376.75 mg/g and cyclic stability of 2–8 cycles, with complexation, electrostatic interactions, and the numerical strength of MXene active sites playing a key operational
Stephen Sunday Emmanuel, Shepherd M. Tichapondwa   +1 more
wiley   +1 more source

Source apportionment and ecological risk assessment of heavy metals in sediments of Dongping lake based on PCA-PMF model

Scientific Reports
Accurately characterizing the spatial distribution of heavy metals in lake surface sediments, analyzing their sources, and identifying potential ecological risks are important scientific supports for lake ecosystem management.
Kuanzhen Mao, Xinfeng Wang, Kaining Yu, Mingming Li, Yibing Wang, Ge Gao, Shitao Geng, Hongliang Song, Wenbin Ning, Hongyan An, Baizhong Yan   +10 more
doaj   +1 more source

Application of structural geology in the exploration for residual gem deposits of Sri Lanka [PDF]

Bulletin of the Geological Society of Finland, 1993
Geological investigations of some major gem-bearing areas of Sri Lanka have shown that the gem deposits are controlled by the geological structure. Corundum deposits are generally associated with axial plane areas of tight, doubly plunging synclinoria ...
D.P.J. Mendis, M.S. Rupasinghe, C.B. Dissanayake   +2 more
doaj   +1 more source

Low‐Pressure Plasma‐Based Wrinkling of PDMS and Machine Learning‐Driven Property Engineering

Advanced Materials Technologies, EarlyView.
Wrinkled surfaces are well‐suited for controlled surface deformations in the µm range. The key challenge is the relation between the resulting wrinkle features and the necessary process conditions. Machine learning techniques have solved the prediction and inverse design problems for various preparation conditions, opening a precisely controlled ...
Fabian Kopsch, Atmika Bhardwaj, Mirko Nitschke, Ilka Hermes, Andreas Fery, Anett Müller, Marco Werner, André Knapp   +7 more
wiley   +1 more source

Integrating Gravimetry and Spatial Analysis for Structural and Hydrogeological Characterization of the Northeast Tadla Plain Aquifer Complex, Morocco

Geographies
This study was conducted in the northeast of the Tadla plain, within the Beni Mellal-Khenifra region of Morocco. The primary objective is to elucidate the geometric and hydrogeological characteristics of this aquifer by analyzing and interpreting data ...
Salahddine Didi, Said El Boute, Soufiane Hajaj, Abdessamad Hilali, Amroumoussa Benmoussa, Said Bouhachm, Salah Lamine, Abdessamad Najine, Amina Wafik, Halima Soussi   +9 more
doaj   +1 more source

Structural Augmentation in Seismic Data for Fault Prediction

Applied Sciences, 2022
Fault interpretation tasks become more and more difficult as the complexity of seismic exploration increases, especially for ultra-deep seismic data. Recently, numerous researchers have utilized automatic interpretation techniques based on deep learning ...
Shenghou Wang, Xu Si, Zhongxian Cai, Yatong Cui   +3 more
doaj   +1 more source