Results 121 to 130 of about 435,841 (322)
Monitorierung der Zerkleinerung des Gesteinsmassivs beim mechanisierten Treiben mit Vollschnittmaschinen [PDF]
Acta Montanistica Slovaca, 2001 Zusammenfassung: Monitorierung der Zerkleinerung im Prozess des mechanisierten Treibens der gesteine wurde ermöglicht, die Festigkeit Charakteristiken der Gesteinsmassivs zu identifizieren.
Sekula Félix, Grexová Slávka
doaj
Vergleich der Klimarelevanz ökologischer und konventioneller Landbewirtschaftung [PDF]
, 1994 Die Charakterisierung der mit den Begriffen "Ökologischer" und "Konventioneller" Landbau bezeichneten Wirtschaftsweise bleibt ebenso wie der Vergleich dieser landwirtschaftlichen Produktionssysteme auf den für die Studie notwendigen Rahmen begrenzt ...
Haas, Guido, Köpke, Ulrich
core
Transforming Coal Waste into Surface‐Engineered Carbons for Lithium–Sulfur Batteries
Batteries &Supercaps, EarlyView.Coal waste is transformed into surface‐engineered porous carbons that suppress polysulfide shuttling and boost Li–S battery performance. Slow redox kinetics and polysulfide shuttling hinder the practical deployment of lithium–sulfur (Li–S) batteries.
Jibril Abdulsalam +4 more
wiley +1 more source
Biofuels, Bioproducts and Biorefining, EarlyView.Abstract The vision of using microalgae to obtain organic chemicals in a carbon‐neutral manner is intriguing. It promises to produce various substances including biofuels by photosynthesis, without competing with agricultural land. Processes have been established whereby microalgae undergo a growth phase followed by a stress phase, which induces lipid ...
Samira Reuscher +2 more
wiley +1 more source
Photochemistry of Aromatic N‐Oxides in Water Probed by Time‐Resolved X‐ray Absorption Spectroscopy
Chemistry – A European Journal, EarlyView.Time‐resolved XAS at the nitrogen and oxygen K‐edges is applied to the photorearrangement of two N‐oxides in water. Pyridine N‐oxide rapidly forms the oxaziridine isomer. Pyridazine N‐oxide undergoes ring opening to the diazo compound, without any evidence of intermediates.
Maximilian Paradiz Domínguez +3 more
wiley +1 more source
Mid‐Infrared Spectroscopy and Machine Learning for Chlorogenic Acid Quantification in Coffee
Chemie Ingenieur Technik, EarlyView.Chlorogenic acid (CGA) concentration in coffee was predicted using mid‐infrared (MIR) spectroscopy and a machine learning approach. Forty‐four roasting stages (140–220 °C) plus a green coffee control were analyzed. A multilayer perceptron regressor, trained on preprocessed MIR data, outperformed traditional peak analysis, enabling accurate and ...
Deborah Herdt +6 more
wiley +1 more source
Energy Balancing of Electrochemical Alternatives to the Solvay Process
Chemie Ingenieur Technik, EarlyView.To overcome the CaCl2 and CO2 emissions custom to the conventional Solvay process in soda ash production, electrochemically based alternatives were investigated. In particular, the mass‐ and energy balances for chlor‐alkali electrolysis and bipolar electrodialysis‐based processes are discussed comprehensively in the presented work.
Tom Wenzel +3 more
wiley +1 more source
A Short‐Cut Design Approach to Evaluate Reboiler Designs in Vapor Recompression Scenarios
Chemie Ingenieur Technik, EarlyView.A short‐cut model framework that incorporates mechanical vapor recompression (MVR) requirements into reboiler design is presented, which is particularly beneficial during early process development with limited data or initial feasibility assessments.
Franziska Lais +2 more
wiley +1 more source
Valence-change bipolar resistive switching devices based on ErMnO3 polymorphs
Communications MaterialsMemristive devices, which emulate the synaptic behavior of biological systems, are at the forefront of next-generation memory and neuromorphic computing technologies.
Rong Wu +5 more
doaj +1 more source