Zobrazeno 1 - 10
of 1 769
pro vyhledávání: '"Proton spin crisis"'
Autor:
Shintaro Hattori, Takayo Moriuchi-Kawakami, Yoshiaki Urahama, Yuria Sekiguchi, Keiichi Fujimori, Ukyo Kuwaoka
Publikováno v:
BUNSEKI KAGAKU. 70:191-197
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::50394d7df452fffc3863bf3948fadefc
https://doi.org/10.2116/bunsekikagaku.70.191
https://doi.org/10.2116/bunsekikagaku.70.191
Autor:
Román Picazo-Frutos, Kirill F. Sheberstov, Bogdan A. Rodin, Konstantin L. Ivanov, James Eills, Dmitry Budker
Publikováno v:
Physical Chemistry Chemical Physics
The field of magnetic resonance imaging with hyperpolarized contrast agents is rapidly expanding, and parahydrogen-induced polarization (PHIP) is emerging as an inexpensive and easy-to-implement method for generating the required hyperpolarized biomo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9a496d1b4082dc57f8ce420a7ffc8fa0
https://doi.org/10.1039/d0cp06581a
https://doi.org/10.1039/d0cp06581a
Autor:
Emanuele R. Nocera, Jacob J. Ethier
Publikováno v:
Ethier, J J & Nocera, E R 2020, ' Parton distributions in nucleons and nuclei ', Annual Review of Nuclear and Particle Science, vol. 70, pp. 43-76 . https://doi.org/10.1146/annurev-nucl-011720-042725
Annual Review of Nuclear and Particle Science
Annual Review of Nuclear and Particle Science
We review the current status of Parton Distribution Function (PDF) determinations for unpolarized and longitudinally polarized protons and for unpolarized nuclei, which are probed by high-energy hadronic scattering in perturbative Quantum Chromodynam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3843aaf8d45fe68f9cda014e9ed1229b
https://doi.org/10.1146/annurev-nucl-011720-042725
https://doi.org/10.1146/annurev-nucl-011720-042725
Autor:
Teruo Kurai
Publikováno v:
Journal of Modern Physics. 11:741-765
We propose a new description of a nucleon as a pair of pions. The baryon number of our description of nucleon is not 1 but 0. However, this is probable because the proton spin crisis shows that the baryon spin cannot tell the number of composing quar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::911f4130a9ccf698e328ea26b7bda734
https://doi.org/10.4236/jmp.2020.115048
https://doi.org/10.4236/jmp.2020.115048
Autor:
Jae-Kwang Hwang
The relative force strengths of the Coulomb forces, gravitational forces, dark matter forces, weak forces and strong forces are compared for the dark matters, leptons, quarks, and normal matters (p and n baryons) in terms of the 3-D quantized space m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f8815c60fd1cae45e2d15cfdcbcfa281
https://doi.org/10.20944/preprints202102.0395.v2
https://doi.org/10.20944/preprints202102.0395.v2
Autor:
Jae-Kwang Hwang
Space-time evolution is briefly explained by using the 3-dimensional quantized space model (TQSM) based on the 4-dimensional (4-D) Euclidean space. The energy (E=cDtDV), charges (|q|= cDt) and absolute time (ct) are newly defined based on the 4-D Euc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4b18f68be580245b88a7eae3b40130c5
https://doi.org/10.20944/preprints202109.0467.v1
https://doi.org/10.20944/preprints202109.0467.v1
Publikováno v:
Scientific Reports
Scientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
Scientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
Over decades multidimensional NMR spectroscopy has become an indispensable tool for structure elucidation of natural products, peptides and medium sized to large proteins. Heteronuclear single quantum coherence (HSQC) spectroscopy is one of the work
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eef51e9f36a280208fb3f5b4b1dc4a94
https://pubmed.ncbi.nlm.nih.gov/34732770
https://pubmed.ncbi.nlm.nih.gov/34732770
Autor:
Jayasubba Reddy Yarava, Nathan A. Prisco, Lyndon Emsley, Bradley F. Chmelka, Brennan J. Walder, Federico M. Paruzzo
Publikováno v:
The Journal of Physical Chemistry Letters. 10:5064-5069
The study of hydration and crystallization processes involving inorganic oxides is often complicated by poor long-range order and the formation of heterogeneous domains or surface layers. In solid-state NMR, H-1-H-1 spin diffusion analyses can provid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::74a91d4c1216dd0a1375e71e6dde7592
https://doi.org/10.1021/acs.jpclett.9b01861
https://doi.org/10.1021/acs.jpclett.9b01861
Autor:
V. T. Lebedev, A. D. Belyaev, A. N. Artemiev, V. P. Sedov, M. V. Suyasova, Vladimir I. Chizhik, Alexandr V. Ievlev, Yu. V. Kulvelis
Publikováno v:
Applied Magnetic Resonance. 50:1163-1175
The nuclear magnetic resonance (NMR)-relaxation characteristics of protons in pure aqueous and buffer solutions of highly hydroxylated endofullerenols with paramagnetic gadolinium ions at ambient temperature have been studied. These systems were thor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5cdb882790ecfa789c61557a60d711d9
https://doi.org/10.1007/s00723-019-01139-3
https://doi.org/10.1007/s00723-019-01139-3
Autor:
Yohei Noda, Satoshi Koizumi
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 923:127-133
We have introduced a 7 T dynamic nuclear polarization apparatus for contrast variation neutron scattering experiments on iMATERIA spectrometer at the Materials and Life Science Facility at the J-PARC spallation neutron source. At 1.2 K and 6.7 T, we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e4d2e049508a839c1146f3b3e9bff67
https://doi.org/10.1016/j.nima.2019.01.051
https://doi.org/10.1016/j.nima.2019.01.051