Results 121 to 130 of about 2,041,624 (304)

Development of dark disk model of positron anomaly origin

open access: yes, 2018
Dark disk model could be a remedy for dark matter (DM) explanation of positron anomaly (PA) in cosmic rays (CR). The main difficulty in PA explanation relates to cosmic gamma-radiation which is inevitably produced in DM annihilation or decay leading to ...
Belotsky, K. M.   +2 more
core   +1 more source

Fabrication of Multifunctional FeSi Gyroid Lattice Composites via Additive Manufacturing and Polymer Infiltration

open access: yesAdvanced Engineering Materials, EarlyView.
A two‐step approach combining laser powder bed fusion of FeSi electrical steel with Bakelite infiltration enables the fabrication of multifunctional gyroid lattice composites. The resulting structures exhibit high strength, magnetic anisotropy, and complete polymer infiltration, demonstrating a simple and scalable route toward lightweight, mechanically
Angelo F. Andreoli   +9 more
wiley   +1 more source

Influence of Sample Preparation and Processing Procedures on the Thermal Diffusivity of MgO‐C Refractories

open access: yesAdvanced Engineering Materials, EarlyView.
The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan   +4 more
wiley   +1 more source

Photoswitchable Conductive Metal–Organic Frameworks

open access: yesAdvanced Functional Materials, EarlyView.
A conductive material where the conductivity can be modulated remotely by irradiation with light is presented. It is based on films of conductive metal–organic framework type Cu3(HHTP)2 with embedded photochromic molecules such as azobenzene, diarylethene, spiropyran, and hexaarylbiimidazole in the pores.
Yidong Liu   +5 more
wiley   +1 more source

Déficit estatural nas crianças brasileiras: relação com condições sócio-ambientais e estado nutricional materno

open access: yesCadernos de Saúde Pública
O presente estudo investigou a relação entre o déficit estatural (DE) de crianças e o estado nutricional (EN) de suas mães e suas condições sócio-ambientais, numa amostra probabilística da população brasileira em 1989.
Elyne M. Engstrom, Luiz A. Anjos
doaj  

Różnice fluktuacji, dynamiki i dymorfizmu płciowego cech somatycznych, typu budowy i otłuszczenia dzieci i młodzieży w wieku od 4 do 18 lat

open access: yesJournal of Education, Health and Sport, 2015
Mrozkowiak Mirosław, Jazdończyk Paulina. Różnice fluktuacji, dynamiki i dymorfizmu płciowego cech somatycznych, typu budowy i otłuszczenia dzieci i młodzieży w wieku od 4 do 18 lat = Fluctuation, dynamics, sexual dimorphism, somatic features, body types
Mirosław Mrozkowiak   +1 more
doaj  

The role of body height as a co-factor of excess weight in Switzerland. [PDF]

open access: yesAm J Hum Biol, 2022
Rickenbacher M   +7 more
europepmc   +1 more source

Ideal Molecular Sieving with a Dense MOF for Helium Upgrading with Highly Diffusion Selective Mixed Matrix Membranes

open access: yesAdvanced Functional Materials, EarlyView.
The separation of Helium gas from natural gas is challenging but highly important. MIL‐116(Ga), a “non‐porous” metal–organic framework is used as a molecular sieve to separate He from CH4. Druse‐like MIL‐116(Ga) particles are integrated into polysulfone mixed matrix membranes.
Ayisha Komal   +10 more
wiley   +1 more source

Fluktuacja dynamiki i dymorfizm płciowy cech somatycznych, typu budowy i otłuszczenia ciała dzieci i młodzieży w wieku od 4 do 18 lat środowiska wiejskiego regionu warmińsko-mazurskiego

open access: yesJournal of Education, Health and Sport, 2015
Mrozkowiak Mirosław. Fluktuacja dynamiki i dymorfizm płciowy cech somatycznych, typu budowy i otłuszczenia ciała dzieci i młodzieży w wieku od 4 do 18 lat środowiska wiejskiego regionu warmińsko-mazurskiego = Fluctuation of dynamics and sexual ...
Mirosław Mrozkowiak
doaj  

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