Results 51 to 60 of about 3,434 (238)

Tunable Negative Thermal Expansion in Fe/Cr‐Substituted Nd2Co17 Compounds via Magnetoelastic Coupling

open access: yesAdvanced Science, EarlyView.
This study achieves anisotropic thermal expansion tuning in Nd2(Co1‐xFex)17‐yCry compounds via a magnetoelastic strategy. Variable‐temperature synchrotron X‐ray diffraction reveals that increased Fe content induces switchable lattice responses. Compositional control reduces the volume expansion coefficient αV by 20% (x═0.7) and modulates TC (442–625 K),
Jiayuan Li   +8 more
wiley   +1 more source

Study of the atmospheric neutron radiation effects using compact laser-driven spallation neutron source

open access: yesPhysical Review Research
We propose a laboratory accelerated test method for study of the atmospheric neutron radiation effects by using a compact laser-driven spallation neutron source (LDSNS).
Z. B. Wu   +6 more
doaj   +1 more source

A PRELIMINARY REPORT ON COSMIC-RAYS AND BALLOON OBSERVATIONS BY THE 10TH JAPANESE ANTARCTIC RESEARCH EXPEDITION IN 1968-1970

open access: yesAntarctic Record, 1971
The 10th Japanese Antarctic Research Expedition carried out the following observations during the period of 1968-1970. The latitude dependence of cosmic-ray intensities was observed aboard the icebreaker FUJI along her route from Japan to Syowa Station ...
Koichi OGURA
doaj   +1 more source

New High‐Tc Charge‐Transfer Multiferroicity in the Quasi‐2D Antiferromagnet CrSbS3

open access: yesAdvanced Science, EarlyView.
ABSTRACT Low‐dimensional magnets, particularly 2D systems, offer a rich platform for realizing unconventional multiferroic mechanisms, especially when multiple polarization channels coexist. In the quasi‐2D antiferromagnet CrSbS3, which crystallizes in the centrosymmetric orthorhombic space group Pnma and orders magnetically at TN ≈ 90 K, two ...
Hung‐Cheng Wu   +17 more
wiley   +1 more source

REPORT OF COSMIC-RAY NEUTRON OBSERVATION IN THE 8TH JAPANESE ANTARCTIC RESEARCH EXPEDITION 1967-1968

open access: yesAntarctic Record, 1969
At Syowa Station, Antarctica, the cosmic-ray neutron observation was made, at the initial stage, with the IGY-type neutron monitor during the period from March 1960 to December 1961.
Yoshio ISHIDA, Masahiro KODAMA
doaj   +1 more source

Multiferroic‐Centric Materials and Systems Engineering for Battery Applications: An Insight Into Mechanisms, Strategies, and Characterizations

open access: yesAdvanced Science, EarlyView.
Multiferroic order parameters – polarization, magnetization, and ferroelastic strain – are positioned as dynamic design variables for batteries. Their mechanistic roles, practical tuning through fabrication and external fields, and ferroic‐resolved characterization routes are unified into a closed‐loop framework, revealing how coupled ferroic responses
Jiaqi Su   +13 more
wiley   +1 more source

Atmospheric electric field effects of cosmic rays detected in Mexico City [PDF]

open access: yesGeofísica Internacional, 2006
We studied the possible effects of atmospheric electric fields, generated in thunderstorms, on the cosmic ray intensity detected at the Earth’s surface by investigating the variations of the counting rates of the cosmic-ray nucleonic component, obtained ...
J. F. Valdés-Galicia, L. X. González
doaj  

Chemical element concentration of aerosol in the Dry Valleys area, South Victoria Land, Antarctica

open access: yesAntarctic Record, 1989
Atmospheric aerosols were collected at Vanda Station and the Lower Wright Hut in the Dry Valleys area, South Victoria Land, Antarctica, on a 110mm diameter Whatman No. 41 filter paper using a high volume air sampler with a handy type generator.
Shyu Nakaya   +3 more
doaj   +1 more source

Stress, strain, neutron transport and radiation effects in a full fusion tokamak device: A virtual MAST-U study [PDF]

open access: yesEPJ Web of Conferences
A finite-element method (FEM) model for the Mega-Ampere Spherical Tokamak - Upgrade (MAST-U) fusion tokamak has been developed to evaluate stress and deformations in the full device structure and to assess the stability of the whole tokamak with respect ...
Reali Luca   +9 more
doaj   +1 more source

Ultra‐Radiostable Covalent Conformationally Interlocked Networks Enabling a Universal Radiometal‐Labeling Platform for Cancer Radioembolization

open access: yesAdvanced Science, EarlyView.
Conjugated poly(imide dioxime)‐based microspheres establish a radiometal coordination‐driven conformational interlocked network with ultra‐high radiostability. This platform enables low‐temperature, multi‐radionuclide labeling for SPECT/PET/MRI imaging and radionuclide therapy. Mechanistic insights from EXAFS and DFT reveal enhanced stability, while in
Xiao Xu   +10 more
wiley   +1 more source

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