Zobrazeno 1 - 10
of 316
pro vyhledávání: '"Wolfgang W. Schmahl"'
Autor:
Michael Ambarita, Devit Ardiansyah, Wolfgang W. Schmahl, Yustina M. Pusparizkita, Rifky Ismail, J. Jamari, Athanasius P. Bayuseno
Publikováno v:
Case Studies in Chemical and Environmental Engineering, Vol 9, Iss , Pp 100715- (2024)
This study investigated the recycling of solid waste residues from rock asphalt extraction via 5-h calcination at 900 °C and indirect carbon mineralization. The calcined powder was first dissolved at 60 °C in 2 M CH3COOH, carbonized in NH4HCO3, and
Externí odkaz:
https://doaj.org/article/83dbccec091e4ddd9e55d0e8af84f7aa
Publikováno v:
Crystals, Vol 14, Iss 7, p 649 (2024)
Chamid bivalves are marine organisms that live in high-energy environments and are cemented to hard substrates. To avoid shell damage, the organisms form thick, densely ornamented shells. Shell material consists of aragonite, and the ornamentation ma
Externí odkaz:
https://doaj.org/article/51d7b01ef2044e2ab9c047b64079cdb7
Autor:
Antonio G. Checa, Fátima Linares, Christian Grenier, Erika Griesshaber, Alejandro B. Rodríguez-Navarro, Wolfgang W. Schmahl
Publikováno v:
iScience, Vol 24, Iss 11, Pp 103288- (2021)
Summary: The shell of the cephalopod Argonauta consists of two layers of fibers that elongate perpendicular to the shell surfaces. Fibers have a high-Mg calcitic core sheathed by thin organic membranes (>100 nm) and configurate a polygonal network in
Externí odkaz:
https://doaj.org/article/98ef3f59022544ce94d3750a31b5514e
Autor:
Gaia Crippa, Erika Griesshaber, Antonio G. Checa, Elizabeth M. Harper, Maria Simonet Roda, Wolfgang W. Schmahl
Publikováno v:
Data in Brief, Vol 33, Iss , Pp 106547- (2020)
Here, we provide the dataset associated with the research article “Orientation patterns of aragonitic crossed-lamellar, fibrous prismatic and myostracal microstructures of modern Glycymeris shells” [1]. Based on several tools (SEM, EBSD, laser co
Externí odkaz:
https://doaj.org/article/452a03f642af4d80a7781f4cb023cae4
Autor:
Laura A. Casella, María del Mar Simonet Roda, Lucia Angiolini, Andreas Ziegler, Wolfgang W. Schmahl, Uwe Brand, Erika Griesshaber
Publikováno v:
Data in Brief, Vol 19, Iss , Pp 299-311 (2018)
The present data in brief article provides additional data and information to our research article “Micro- and nanostructures reflect the degree of diagenetic alteration in modern and fossil brachiopod shell calcite: a multi-analytical screening ap
Externí odkaz:
https://doaj.org/article/38d73b62781740bf8c938d3422dbeeee
Autor:
Isabella Kappel, Sebastian Böcklein, SoHyun Park, Michael Wharmby, Gerhard Mestl, Wolfgang W. Schmahl
Publikováno v:
Catalysts, Vol 11, Iss 11, p 1325 (2021)
This study presents information about crystal imperfections in the main phase of industrial vanadium phosphorous oxide catalysts that are used to catalyze the oxidation of n-butane to maleic anhydride, being an important intermediate in the chemical
Externí odkaz:
https://doaj.org/article/0609b91a68ad46af8fa22447608f17ea
Publikováno v:
Crystals, Vol 11, Iss 3, p 299 (2021)
Triggered by geochemical cycles, large-scale terrestrial processes and evolution, a tremendous biodiversity evolved over the geological record and produced proto- and metazoa with biomineralized hard tissue, characterized by unique structural designs
Externí odkaz:
https://doaj.org/article/27bde1fd63124d618d58acf058f0efe9
Publikováno v:
Crystals, Vol 10, Iss 10, p 859 (2020)
This systematic investigation of bioapatite, the mineral component of human bone, aims to characterize its crystallographic state, including lattice parameters and average crystallite size, and correlate these values with respect to anatomical positi
Externí odkaz:
https://doaj.org/article/ffe5abe134a84b7fb73406a0c59fd923
Autor:
Sergiu Amarie, Paul Zaslansky, Yusuke Kajihara, Erika Griesshaber, Wolfgang W. Schmahl, Fritz Keilmann
Publikováno v:
Beilstein Journal of Nanotechnology, Vol 3, Iss 1, Pp 312-323 (2012)
Methods for imaging of nanocomposites based on X-ray, electron, tunneling or force microscopy provide information about the shapes of nanoparticles; however, all of these methods fail on chemical recognition. Neither do they allow local identificatio
Externí odkaz:
https://doaj.org/article/30263c283f8d4090b1c591f5d4bc5203
Autor:
Martina Greiner, Lurdes Férnandez-Díaz, Erika Griesshaber, Moritz N. Zenkert, Xiaofei Yin, Andreas Ziegler, Sabino Veintemillas-Verdaguer, Wolfgang W. Schmahl
Publikováno v:
Minerals, Vol 8, Iss 8, p 315 (2018)
We present results of bioaragonite to apatite conversion in bivalve, coral and cuttlebone skeletons, biological hard materials distinguished by specific microstructures, skeletal densities, original porosities and biopolymer contents. The most profou
Externí odkaz:
https://doaj.org/article/51f1141f14254a628ac4ffdc680b07d8