Results 81 to 90 of about 20,616 (293)

Unidirectional Evaporation‐Induced Tunable and Continuous Gradient Composite Structure for Absorption‐Dominant Electromagnetic Interference Shielding

Advanced Science, EarlyView.
A continuous conductivity gradient is formed in a porous MXene/melamine foam via directional evaporation, thereby improving impedance matching and enhancing electromagnetic attenuation. The resulting monolithic composite delivers absorption‐dominant EMI shielding with ultralow reflection, offering a simple route toward lightweight EMI shielding ...
Dawei Zhang, Yan Zhang, Baosong Li, Abdallah Kamal, Haider Butt, Kin Liao, Lianxi Zheng   +6 more
wiley   +1 more source

Slowing Down Water: Enhanced and Cation‐responsive MRI Contrast

Angewandte Chemie, EarlyView.
The controlled modification of mesoporous silica nanoparticle side walls with kosmotropic motifs supports an ability to reduce water diffusive mobility and dramatically increase MRI contrast to levels unprecedented for highly kinetically stable Gd‐DOTA configurations (both q = 1 and q = 0).
Connor M. Ellis, James P. Smith, Matthew F. Allen, Ferenc E. Mózes, Stephen Faulkner, Jason J. Davis   +5 more
wiley   +2 more sources

Dipolar and non‐dipolar dynamos in a thin shell geometry with implications for the magnetic field of Mercury [PDF]

Geophysical Research Letters, 2006
Dynamo action possibly working in the fluid core of Mercury is examined using numerical models in a thin spherical shell. Dipolar (DP) dynamos are obtained in the regime of columnar flows outside the tangent cylinder (TC), whereas non‐dipolar (NDP) dynamos dominated by the multipole components are found in the regime of flows both inside and outside ...
F.Takahashi, M. Matsushima
openaire   +1 more source

Plasmaspheric dynamics resulting from the hallowe'en 2003 geomagnetic storms [PDF]

, 2009
Cross-phase-derived plasma mass density trends during the Hallowe'en 2003 geomagnetic storms are presented for 38° magnetic latitude 63° (1.61 ≤ L ≤ 5.10), using data from the SAMNET (Subauroral Magnetometer Network), BGS (British Geological Survey), and
Zhang, T.L., Mann, I.R., Honary, Farideh, Kale, Z.C., Waters, C.L., Vellante, M.   +5 more
core  

Vibration energy harvesting using the Halbach array

, 2012
This paper studies the feasibility of vibration energy harvesting using a Halbach array. A Halbach array is a specific arrangement of permanent magnets that concentrates the magnetic field on one side of the array while cancelling the field to almost ...
Beeby, Steve, Zhu, Dibin, Harris, Nick, Tudor, John   +3 more
core   +1 more source

Bias‐Engineered Synthetic Antiferromagnets Hosting Sub‐20 nm Zero‐Field Skyrmions at Room Temperature

Advanced Science, EarlyView.
A fully compensated synthetic antiferromagnet (SAF) multilayer exhibits a uniform state at zero field, without skyrmions. We use a SAF bias system to provide RKKY‐mediated exchange bias to the SAF multilayer, promoting zero‐field skyrmion stabilization and polarity control.
Emily Darwin, Riccardo Tomasello, Reshma Peremadathil Pradeep, Mario Carpentieri, Giovanni Finocchio, Hans J. Hug   +5 more
wiley   +1 more source

CSAKD: Determining Absolute Ligand Affinities From 19F NMR Chemical Shift Anisotropy

Angewandte Chemie, EarlyView.
Affinity determination is crucial in drug discovery, yet remains difficult for weakly binding fragments. We introduce chemical shift anisotropy KD$K_{\text{D}}$ (CSAKD) by 19F$^{19}{\rm F}$ NMR relaxation experiments, a titration‐free method that requires no isotopic labeling.
Simon H. Rüdisser, Gabriela Stadler, Alvar D. Gossert   +2 more
wiley   +2 more sources

New Observations of the Strongly Magnetic O Star NGC 1624-2 Reveal Its Magnetic South Pole

The Astrophysical Journal
NGC 1624-2 has the strongest detected magnetic field of all known main-sequence O-type stars. Recent work reported that existing magnetospheric emission and longitudinal magnetic field measurements did not rule out a rotation period twice as long as the ...
S. Seadrow, V. Petit, D. Bohlender, A. David-Uraz, J. MacDonald, J. Maíz Apellániz, M. Oksala, M. Shultz, G. A. Wade   +8 more
doaj   +1 more source

Magnetic nanoparticles clustering effects on the temperature field in magnetic hyperthermia [PDF]

AIP Advances
Magnetic hyperthermia is a medical technique based on the generation of therapeutic heat by a magnetic nanoparticle (MNP) system in the presence of a high-frequency electromagnetic field.
Viorica Monica Moisiuc, Iordana Astefanoaei, Alexandru Stancu   +2 more
doaj   +1 more source

Elastocaloric-effect-induced adiabatic magnetization in paramagnetic salts due to the mutual interactions

Scientific Reports, 2021
The temperature change under adiabatic stress, i.e., the elastocaloric effect, is a well-understood phenomenon and of particular interest due to its potential application in alternative ways for refrigeration.
Lucas Squillante, Isys F. Mello, Antonio C. Seridonio, Mariano de Souza   +3 more
doaj   +1 more source