Results 91 to 100 of about 899,165 (255)

1H NMR plasma metabolomic profiling of ovarian quiescence in energy balanced postpartum dairy cows

Veterinary Quarterly, 2018
Background: As the milk production of dairy cows increases, the reproductive capacity gradually declines. Ovarian quiescence has become one of the concerns of the dairy industry. Objective: To explore the different plasma metabolite levels between estrus
Jiang Zhang, Gang Wang, Chang Zhao, Yunlong Bai, Shi Shu, Ziling Fan, Cheng Xia   +6 more
doaj   +1 more source

Revisiting $^{63}$Cu NMR evidence for charge order in superconducting La$_{1.885}$Sr$_{0.115}$CuO$_4$

, 2017
The presence of charge and spin stripe order in the La2CuO4-based family of superconductors continues to lead to new insight on the unusual ground state properties of high Tc cuprates.
Acton, A. W., Arsenault, A., Fujita, M., He, W., Imai, T., Lee, D., Lee, Y. S., Takahashi, S. K.   +7 more
core   +1 more source

Exploring Pb‐Chelation Chemistry in the Crystallization Dynamics of Halide Perovskites

Advanced Functional Materials, EarlyView.
A mechanism of how Pb‐chelation chemistry governs coordination geometry and initial nucleation behavior at the precursor level of halide perovskite, by regulating the deprotonation state of a chelating additive, is elucidated. This allows for innovative reaction‐system design principles that promote coherent growth while suppressing defect formation in
Byeong Jun Kim, Inseo Cho, Jung Geon Son, Yifan Yu, Gunhee Kim, Eunseo Shin, Seyeon Eom, Minsub Um, Subeom Shin, Hyungju Ahn, Dong Suk Kim, Hochan Song, Hyosung Choi, Jonghee Yang   +13 more
wiley   +1 more source

One- and two-dimensional N-qubit systems in capacitively coupled quantum dots

, 2001
Coulomb blockade effects in capacitively coupled quantum dots can be utilized for constructing an N-qubit system with antiferromagnetic Ising interactions.
A. Barenco, B. E. Kane, B. Hoefflinger, C. H. Bennett, C. Livermore, D. Loss, D. P. DiVincenzo, D. P. DiVincenzo, D. V. Averin, G. Springholz, J. E. Mooij, L. A. Openov, L. Guo, L. M. K. Vandersypen, L. Viola, N. B. Zhitenev, N. Linden, P. Zanardi, R. Landauer, R. Landauer, R. R. Ernst, S. Lloyd, S. Lloyd, S. Tiwari, T. Fujisawa, T. H. Oosterkamp, T. Tanamoto, Tetsufumi Tanamoto, Y. Makhlin, Y. Nakamura   +29 more
core   +1 more source

Facile Preparation of Carbon Membranes Derived from a Fluorenyl‐Containing Polyimine for Selective Hydrogen Separation

Advanced Functional Materials, EarlyView.
A fluorenyl‐containing polyimine is introduced as a simple, scalable precursor for high‐performance carbon membranes. The precursor's intrinsic kinked structure enables defect‐free membrane formation with enhanced hydrogen permeance and excellent ideal selectivities for key industrial gas pairs (H2/N2, H2/CH4, and H2/CO2), offering a practical route ...
Clara Coiana, Christos Pantazidis, Ankita Mandal, Maarten Bransen, Fausto Gallucci, Željko Tomović   +5 more
wiley   +1 more source

K-Based Geopolymer from metakaolin: roles of K/Al ratio and water or steam Curing at different temperatures

Materiales de Construccion, 2016
K-based geopolymer binder was prepared by reacting metakaolin with alkaline solutions having different potassium contents and by water curing at room temperature and 80 °C as well as steam curing at 150 and 180 °C. The phase formation, microstructure and
A. Tawfik, F. Abd El-Raoof, H. Katsuki, K. J.D. MacKenzie, S. Komarneni   +4 more
doaj   +1 more source

First Principles NMR Study of Fluorapatite under Pressure

, 2012
NMR is the technique of election to probe the local properties of materials. Herein we present the results of density functional theory (DFT) \textit{ab initio} calculations of the NMR parameters for fluorapatite (FAp), a calcium orthophosphate mineral ...
Astala, Barbara Pavan, Bengtsson, Braun, Calderin, Chappell, Charpentier, Cheeseman, Comodi, Comodi, Davide Ceresoli, De Leeuw, De Leeuw, Ditchfield, Dorozhkin, Dupree, Gervais, Giannozzi, Harris, Harris, Keith, Kutzelnigg, Laurencin, Le Roux, LeGeros, Liang, Lin, Louis-Achille, Mackenzie, Marco Fornari, Mary M.J. Tecklenburg, Mason, Matsos, Matsukage, Mauri, Momma, Parr, Peeters, Perdew, Peroos, Pickard, Pourpoint, Profeta, Raghavan, Rakovan, Rosin-Grget, Rulis, Sahai, Sardar, Schindler, Shannon, Sudarsan, Tamm, Tribble, Wang, Wellman, Wentzcovitch, Williams, Wong, Wu, Xu, Zahn, Zheng   +62 more
core   +1 more source

NMR Studies of Metalloproteins [PDF]

, 2011
Metalloproteins represent a large share of the proteomes, with the intrinsic metal ions providing catalytic, regulatory, and structural roles critical to protein functions. Structural characterization of metalloproteins and identification of metal coordination features including numbers and types of ligands and metal-ligand geometry, and mapping the ...
Sun, H, Li, H
openaire   +4 more sources

Self‐Adaptive Anhydrous Passivation Mitigates Open‐Circuit Voltage Loss in Pb‐Sn Mixed Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
In this report, a self‐adaptive anhydrous passivation strategy is introduced by incorporating trimellitic anhydride (TMAH) into the perovskite precursor. In situ hydrolysis of TMAH yields trimellitic acid (TMA); ‐C═O/‐COO− groups of TMAH/TMA form a chelate with undercoordinated Pb2+/Sn2+, regulate nucleation, promote (100) orientation, passivate ...
Md. Ataur Rahman, Md. Abdul Karim, Md. Emrul Kayesh, Siliang Cao, Shamim Ahmmed, Kiyoto Matsuishi, Ashraful Islam   +6 more
wiley   +1 more source

Low temperature MQ NMR dynamics in dipolar ordered state

, 2013
We investigate analytically and numerically the Multiple Quantum (MQ) NMR dynamics in dipolar ordered spin systems of nuclear spins 1/2 at a low temperatures. We suggest two different methods of MQ NMR.
Furman, G. B., Meerovich, V. M., Sokolovsky, V. L.   +2 more
core   +1 more source