Zobrazeno 1 - 10
of 192
pro vyhledávání: '"Philip A. Singer"'
Autor:
Weishi Yuan, Jiaming Wang, Philip M. Singer, Rebecca W. Smaha, Jiajia Wen, Young S. Lee, Takashi Imai
Publikováno v:
npj Quantum Materials, Vol 7, Iss 1, Pp 1-10 (2022)
Abstract Kagome lattice Heisenberg antiferromagnets are known to be highly sensitive to perturbations caused by the structural disorder. NMR is a local probe ideally suited for investigating such disorder-induced effects, but in practice, large distr
Externí odkaz:
https://doaj.org/article/c564ac2435e444c6b74ea3aed7cdef7b
Autor:
Arjun Valiya Parambathu, Walter G. Chapman, George J. Hirasaki, Dilipkumar Asthagiri, Philip M. Singer
Publikováno v:
The Journal of Physical Chemistry Letters. 14:1059-1065
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::080013ea5f4d38b6ac2b48e06f921630
https://doi.org/10.1021/acs.jpclett.2c03699
https://doi.org/10.1021/acs.jpclett.2c03699
Autor:
Thiago J. Pinheiro dos Santos, Arjun Valiya Parambathu, Carla C. Fraenza, Casey Walsh, Steve G. Greenbaum, Walter G. Chapman, Dilip Asthagiri, Philip M. Singer
Publikováno v:
Physical Chemistry Chemical Physics. 24:27964-27975
Gadolinium-based contrast agents are key in clinical MRI for enhancing the longitudinal NMR relativity (r1) of hydrogen nuclei (1H) in water and improving the contrast among different tissues.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f09eb54082cfd595144735ad8576adee
https://doi.org/10.1039/d2cp04390d
https://doi.org/10.1039/d2cp04390d
Autor:
Yunke Liu, Xinglin Wang, Zeliang Chen, George J. Hirasaki, Harold J. Vinegar, Philip M. Singer
Publikováno v:
Petrophysics – The SPWLA Journal of Formation Evaluation and Reservoir Description. 62:244-264
Permeability estimation is crucial for formation evaluation, but faces challenges when used in low-permeability, unconventional formations. NMR well logging is often used to estimate formation permeability, but in many unconventional formations, the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7db62c345b7a1ad9797ef7a2a65d1a9
https://doi.org/10.30632/pjv62n3-2021a1
https://doi.org/10.30632/pjv62n3-2021a1
Autor:
Xinglin Wang, Ridhwan Zhafri Kamarul Bahrim, Philip M. Singer, Rouhi Farajzadeh, Chutian Bai, George J. Hirasaki, Mohammadreza Amirmoshiri, Raj Deo Tewari, Sibani Lisa Biswal, Sheena Xina Xie
Publikováno v:
Energy & Fuels. 35:7681-7692
One of the common challenges of applying foam for enhanced oil recovery is the foam instability in the presence of crude oil and nonwater-wet surfaces. In this experimental study, we systematically distinguish the effect of rock surface wettability f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a4dde3d0dd48d81fe99cb75ccda20c31
https://doi.org/10.1021/acs.energyfuels.0c04247
https://doi.org/10.1021/acs.energyfuels.0c04247
Autor:
Sean K. Takahashi, Jiaming Wang, Alexandre Arsenault, Takashi Imai, Mykola Abramchuk, Fazel Tafti, Philip M. Singer
Publikováno v:
Physical Review X, Vol 9, Iss 3, p 031047 (2019)
Magnetic moments arranged at the corners of a honeycomb lattice are predicted to form a novel state of matter, the Kitaev quantum spin liquid, under the influence of frustration effects between bond-dependent Ising interactions. Some layered honeycom
Externí odkaz:
https://doaj.org/article/9c36fb7ebb3e4ba39a984d967bf4aefa
Autor:
George J. Hirasaki, Arjun Valiya Parambathu, Lawrence B. Alemany, Thiago J. Pinheiro dos Santos, Yunke Liu, Dilip Asthagiri, Walter G. Chapman, Philip M. Singer
Publikováno v:
Physical Chemistry Chemical Physics. 23:20974-20984
Atomistic molecular dynamics simulations are used to predict 1H NMR T1 relaxation of water from paramagnetic Gd3+ ions in solution at 25 °C. Simulations of the T1 relaxivity dispersion function r1 computed from the Gd3+–1H dipole–dipole autocorr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2ea550d48132fbc0166e651805af6dd7
https://doi.org/10.1039/d1cp03356e
https://doi.org/10.1039/d1cp03356e
Publikováno v:
The Journal of Physical Chemistry B. 124:10802-10810
The intramolecular ¹H NMR dipole–dipole relaxation of molecular fluids has traditionally been interpreted within the Bloembergen–Purcell–Pound (BPP) theory of NMR intramolecular relaxation. The BPP theory draws upon Debye’s theory for descri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::724457d44519baaba0499f07c7193663
https://doi.org/10.1021/acs.jpcb.0c08078
https://doi.org/10.1021/acs.jpcb.0c08078
Autor:
Walter G. Chapman, Arjun Valiya Parambathu, George J. Hirasaki, Philip M. Singer, Dilipkumar Asthagiri
Publikováno v:
The Journal of Physical Chemistry B. 124:3801-3810
The mechanism behind the NMR surface-relaxation times (T1S,2S) and the large T1S/T2S ratio of light hydrocarbons confined in the nanopores of kerogen remains poorly understood and consequently has ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::765e55aeb5fd78bdc5f5bd4fe3855e62
https://doi.org/10.1021/acs.jpcb.0c00711
https://doi.org/10.1021/acs.jpcb.0c00711
We use single crystal $^{63}$Cu NMR techniques to revisit the early $^{63}$Cu NQR signature of charge order observed for La$_{1.875}$Ba$_{0.125}$CuO$_{4}$ ($T_{\text{c}} =4$~K) [A. W. Hunt et al., Phys. Rev. Lett. {\bf 82}, 4300 (1999)]. We show that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::19dbefaf443c2f391398cdd71e2529ae
http://arxiv.org/abs/2203.04217
http://arxiv.org/abs/2203.04217
