Results 41 to 50 of about 74,891 (110)

Preparation of CuO-Bi₂O₃-MgO/SiO₂ Spherical Catalyst and Its Formaldehyde Acetylenation Performance

Crystals
A spherical CuO-Bi2O3-MgO/SiO2 catalyst was prepared using the coprecipitation-gel method. The study investigated the influence of the MgO/SiO2 ratio on the catalyst structure and the activity of the catalyst in the preparation of 1,4-butanediol from ...
Xiang-Yu Wang, Gang Guan, Hao Tao, Jun-Jian Su, Ping Luo, Feng-Yun Ma, Xiao-Ding Li   +6 more
doaj   +1 more source

Alkenone stable carbon isotopes, planktic foraminfera stable carbon isotopes, alkenone unsaturation indices and calculated sea surface temperatures and atmospheric pCO2 for ODP Site 165-999

, 2013
Temperature reconstructions indicate that the Pliocene was ~3 °C warmer globally than today, and several recent reconstructions of Pliocene atmospheric CO2 indicate that it was above pre-industrial levels and similar to those likely to be seen this ...
Schmidt, Daniela N, Daniela N Schmidt (6959528), Marcus P S Badger (6960125), Richard D Pancost (6960131), Mackensen, Andreas, Badger, Marcus P S, Pancost, Richard D, Andreas Mackensen (6959975)   +7 more
core   +1 more source

Determination of the ²⁰⁷Pb Chemical Shift Tensor in Crocoite, PbCrO₄, Using Single-Crystal NMR Spectroscopy

Crystals
The full chemical shift tensor of 207Pb (spin I=1/2) in the natural mineral crocoite, PbCrO4, has been determined using single-crystal NMR spectroscopy at room temperature.
Sebastian Kläger, Otto E. O. Zeman, Thomas Bräuniger   +2 more
doaj   +1 more source

INVESTIGATION OF EXCITED STATES OF ODD-ODD NUCLEI OF *999*996Rh AND *999*998Rh IN (p, n gamma ) REACTION

, 1995
Data about properties of low-laying states of *999*996Rh and *999*998Rh have been used for the comparison with calculations on the statistic theory of Khauzer - Feshbakh.
Sitnikova, Irina Vladimirovna
core  

Dictionaries [999] النهاية فى غريب الحديث

, 2022
Dictionaries. This manuscript is now IO Islamic 1498 in the India Office collections. [metadata: Otto Loth, A Catalogue of the Arabic Manuscripts in the Library of the India Office, (volume 1), no. 999 here with further notations and hyperlinks]. 999.
IBN AL-ATHÎR JAZARÎ
core   +1 more source

Discovery of a new zinc oxide semiconductor: 21R polytype

Structural Dynamics
Zinc oxide (ZnO) is a notable semiconductor with a range of interesting electronic and optical properties. Polytypic behavior of crystal structures can strongly affect the properties of materials, especially in ZnO.
Matej Fonović, Jelena Zagorac, Maria Čebela, Dragana Jordanov, Dejan Zagorac   +4 more
doaj   +1 more source

Finalist - 999 Park

, 2018
999 Park by Julia wang was one of the five finalists in the 2018 Yale Law Library short story ...
Wang, Julia
core  

SimLex-999 for Dutch [PDF]

Word embeddings revolutionised natural language processing by effectively representing words as dense vectors. Although many datasets exist to evaluate English embeddings, few cater to Dutch. We developed a Dutch variant of the SimLex-999 word similarity
Brans, L., Bloem, J.; id_orcid
core   +2 more sources

Simultaneous mapping of the ultrafast time and fluence dependence of the laser-induced insulator-to-metal transition in magnetite

Structural Dynamics
Pump-probe methods are a ubiquitous tool in the field of ultrafast dynamic measurements. In recent years, x-ray free-electron laser experiments have gained importance due to their ability to probe with high chemical selectivity and at atomic length ...
J. O. Schunck, P. S. Miedema, R. Y. Engel, S. Dziarzhytski, G. Brenner, N. Ekanayake, C.-F. Chang, P. Bougiatioti, F. Döring, B. Rösner, C. David, C. Schüßler-Langeheine, M. Beye   +12 more
doaj   +1 more source

Mg20.66Al12.24Zn20.04

IUCrData
The title single-crystal (icosamagnesium dodecaaluminium icosazinc), was obtained during the synthesis of an Mg–Al–Zn alloy at high pressure and temperature. It crystallizes in space group Im3 (No.
Jingchao Yu, Yibo Liu, Huizi Liu, Bin Wen, Lifeng Zhang, Changzeng Fan   +5 more
doaj   +1 more source