Results 151 to 160 of about 206,840 (257)

One chemistry, many pathways: Comparing carbon-negative cement, enhanced weathering, and ocean alkalinity enhancement. [PDF]

iScience
Cheng CH, Chornkrathok S, Redfern SAT.
europepmc   +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

Core formation resolves Earth's siderophile excess without a late veneer. [PDF]

Sci Adv
Blanchard I, Siebert J, Calvo L, Lobanov SS, Pinchon C, Kubik E, Wilke M, Schreiber A, Bonino V, Guyot F, Petitgirard S, Parisiades P, Guignot N.   +12 more
europepmc   +1 more source

Magnetic Supraparticles as Identifiers in Single‐Layer Lithium‐Ion Battery Pouch Cells

ChemSusChem, Volume 18, Issue 6, March 15, 2025.
As an alternative to externally applied optical identifiers, magnetic supraparticles (SPs) can be used for contactless identification of lithium‐ion battery pouch cells via magnetic particle spectroscopy. This study validated the integration and detection of magnetic markers in three model scenarios.
Sara Li Deuso, Simon Ziegler, Daniel Weber, Felix Breuer, Daniel Haddad, Stephan Müssig, Andreas Flegler, Guinevere A. Giffin, Karl Mandel   +8 more
wiley   +1 more source

Effect of Waste Calcareous Opoka Rock on the Rheological, Physical, and Durability Properties of Thin-Layer Renders for External Thermal Insulation Composite Systems. [PDF]

Materials (Basel)
Barnat-Hunek D, Grzegorczyk-Frańczak M, Robaczyński N, Puch W.   +3 more
europepmc   +1 more source

Perceived importance and didactic difficulty of chemistry education: Insights from Czech teachers

The Curriculum Journal, EarlyView.
Abstract This empirical study examines how chemistry teachers in lower and upper secondary schools in the Czech Republic evaluate the content of the chemistry curriculum, focussing on its perceived importance and didactic difficulty. Based on a quantitative survey (N = 146), the study provides insight into the pedagogical content knowledge of ...
Jitka Lorenzová, Blanka Jirkovská, Martin Čapek Adamec, Jan Havlík, Petr Holzhauser, Daniela Nováková, Karel Němejc   +6 more
wiley   +1 more source

Pulpotomy of deciduous molars with deep caries using three different hydraulic calcium silicate cements: a short-term pilot randomized controlled split-mouth study. [PDF]

Clin Oral Investig
Urmann U, Schenke IM, Hiller KA, Buchalla W, Bekes K, Widbiller M, Schenke F, Cieplik F, Scholz KJ.   +8 more
europepmc   +1 more source

Study on the composite fracture characteristics of filling and reinforcing cracked rock mass after high temperature damage

Deep Underground Science and Engineering, EarlyView.
Cement infill shares compressive and shear stresses during loading, while interfacial friction hinders crack propagation and reduces stress concentration, improving the rock's load‐bearing capacity. Failure modes vary with crack inclination. Unfilled specimens show four modes.
Shihao Yuan, Qiang Sun, Jianjun Hu, Liwei Zhang, Jishi Geng   +4 more
wiley   +1 more source

Effect of Activator Modulus on the Performance, Reaction Products, and Microstructure of Biomass Power Plant Ash-Based Alkali-Activated Binders. [PDF]

ACS Omega
Zhao S, Chen Y, Ma T, Xia M.
europepmc   +1 more source

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

Deep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu, Tao Li, Ruiqi Yuan, Yue Li, Bingni Wu, Bo Liu, Zhengding Deng, Galindo Rubén, Fausto Molina‐Gómez   +8 more
wiley   +1 more source