Results 141 to 150 of about 6,511,310 (294)

Problems of teaching analytical chemistry according to the results of the student olympiad [PDF]

, 1998
Problems of theoretical training of students of technological institutes in analytical chemistry connected with the shortening of analytical chemistry curricula are discussed on the basis of the results of the All-Russian Student Olympiad.
Sopin V., Safina Y., Garmonov S., Budnikov G.   +3 more
core  

Machine Learning‐Supported Analysis for Predicting and Visualizing Nonlinear Relationships Between Material Properties in Electroplated Chromium Layers

Advanced Engineering Materials, EarlyView.
This study applies machine learning regression to predict chromium layer thickness in decorative trivalent chromium electroplating, using 441 experiments from laboratory‐scale (1L) and pilot‐scale (14L) setups. Tree‐based models, particularly CatBoost, outperformed linear regression by capturing nonlinear parameter interactions (R2$R^2$ up to 0.77 ...
Christoph Baumer, Christopher Mai, Luca Eisentraut, Andreas Bund, Ricardo Buettner   +4 more
wiley   +1 more source

Analytical Chemistry

, 1973
ill.;403hal ...
Analytical
core  

Green chemometric approach for the simultaneous estimation of bupivacaine and meloxicam

Discover Chemistry
A chemometric-assisted UV–Vis spectrophotometric method was developed and validated for the simultaneous determination of bupivacaine (BUP) and meloxicam (MEL) in bulk drug substances and laboratory-synthesized mixtures.
Shantilal Padhiyar, Bhanubhai N. Suhagia, Jenee R. Christian, Tejal G. Soni   +3 more
doaj   +1 more source

Comparison of Triply Periodic Minimal Surface Energy Absorbers Under Uniaxial Compressive Loading

Advanced Engineering Materials, EarlyView.
This study investigates LCD 3D printed Triply Periodic Minimal Surface (TPMS) structures as mechanical energy absorbers. By comparing various base designs and layered combinations under uniaxial compression, it identifies that a Diamond‐Gyroid sandwich structure offers superior performance.
Sergej Grednev, Noah‐Lean Roschlaub, Anne Jung   +2 more
wiley   +1 more source

Analytical Chemistry

, 1983
ill.;2507hal ...
Analytical
core  

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

Chemometric and learning-based multivariate models for quantifying a challenging quaternary mixture of bupropion, dextromethorphan, and their related impurities by UV-Vis spectrophotometry

BMC Chemistry
This study presents a robust, green, sustainable and time-efficient approach for the simultaneous determination of Bupropion HCl (BUP) and Dextromethorphan HBr (DEX) along with their related impurities 3-Chlorobenzoic acid and N, N-Dimethylaniline ...
Shrouk E. Algmaal, Shereen A. Boltia, Yasser S. El Saharty, Nermine S. Ghoniem   +3 more
doaj   +1 more source

Multipurpose chromatographic method for concurrent stability study of metformin, dapagliflozin, and glimepiride using integrated principles of RGB12 and white analytical chemistry

Future Journal of Pharmaceutical Sciences
Abstract Background The research develops a novel multipurpose chromatographic method for concurrent stability analysis of metformin hydrochloride (MH), dapagliflozin propanediol monohydrate (DPM), and glimepiride (GP).
Pintu Prajapati, Unnati Rana, Veerashakar Pulusu, Anzarul Haque, Sarfaraz Ahmad, Shailesh Shah   +5 more
openaire   +1 more source

OntOMat: Toward Ontology‐Based Product and Process Design Engineering and Optimization Solutions Fueling Circular Value Chains

Advanced Engineering Materials, EarlyView.
The OntOMat ontology establishes a structured framework for polymer matrix fiber reinforced composite materials, integrating manufacturing processes, characterization methods, and multiscale design through the VDI/VDE 3682 formalized process description standard.
Nicolas Christ, Jörg Hohe, Martin Kördel, Michael Giese, Niklas Toffert, Christian Seidel, Olaf Rehme, Patrik Schneider, Oliver Focke, Elie Abi Aoun, Claas Falldorf, Beñat Gutierrez, Alexandra Kühn, Sven Torstrick-von der Lieth, Christoph Herden, Erik Johannsen, Jan‐Uwe R. Schmidt, Felix Winkelmann, Andreas Schott, Daniel Schott   +19 more
wiley   +1 more source