Results 31 to 40 of about 108,704 (296)

Particules libres photons et particules « charge pure »

Journal de Physique et le Radium, 1937
L'auteur écrit les valeurs des principales grandeurs, énergie, moments, charge, etc..., attachées à une particule quelconque qui se meut dans le vide, en l'absence de champ exterieur, d'après les lois générales établies dans un article antérieur (Journal de Physique, 1936, 7, p. 347.). Les résultats sont appliqués au photon. On en déduit que ce dernier
openaire   +2 more sources

Composite Electrospun Fibers Containing Optimized B‐ and Cu‐Doped Bioactive Glass Sol‐Gel Particles for Potential Soft Tissue Engineering Applications

Advanced Engineering Materials, EarlyView.
This article describes the preparation and characterization of poly(ε‐caprolactone) electrospun composite fibers incorporating sol‐gel‐derived bioactive glass particles doped with B and Cu. Scanning electron microscopy, energy‐dispersive X‐ray spectroscopy, Fourier‐transform infrared spectroscopy, contact angle, acellular bioactivity, mechanical and ...
Elisa Piatti, Marta Miola, Liliana Liverani, Paolo Sartori, Enrica Verné, Aldo R. Boccaccini   +5 more
wiley   +1 more source

Differential Inflammatory Cytokine Elaboration in Serum from Brick Kiln Workers in Bhaktapur, Nepal

Diseases
Previous studies involving workers at brick kilns in the Kathmandu Valley of Nepal have investigated chronic exposure to hazardous levels of fine particulate matter (PM2.5) common in ambient and occupational environments.
Katrina L. Curtis, Ashley Chang, James D. Johnston, John D. Beard, Scott C. Collingwood, James D. LeCheminant, Neil E. Peterson, Andrew J. South, Clifton B. Farnsworth, Seshananda Sanjel, Benjamin T. Bikman, Juan A. Arroyo, Paul R. Reynolds   +12 more
doaj   +1 more source

Investigations on tensile fractography and wear characteristics of Al7075-Al2O3-SiC Hybrid Metal Matrix Composites routed through liquid metallurgical techniques

Fracture and Structural Integrity, 2021
The Al2O3-SiC reinforced Al7075 Metal Matrix Composite (MMCs) is fabricated through liquid metallurgical technique. Ceramic particulates were amalgamated into the aluminium alloy to achieve improved mechanical properties and wear resistance.
M. Ravikumar, H. N. Reddappa, R. Suresh, Y. S Ram Mohan, C. R. Nagaraja, E. R. Babu   +5 more
doaj   +1 more source

Micropleated Nanofibrous Filters for High‐Efficiency Submicron Aerosol Filtration: A Comparative Study with Chemical, Biological, Radiological, and Nuclear Gas Mask Filters

Advanced Engineering Materials, EarlyView.
This study presents micropleated filters manufactured by needleless electrospinning. Nanofibers are deposited onto uniaxially pre‐stretched substrates that contract upon release, forming densely packed micropleats. This architecture increases effective surface area without enlarging the filter size, achieving quality factors comparable to those of ...
Aleksandr Fadeev, Kevin Crown, Sean Kinahan, Gabriel Lucero, Hayden Stromsodt, Svetlana Romanova, Yury Salkovskiy   +6 more
wiley   +1 more source

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

Advanced 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, Laura Calderón‐Rodríguez, Oksana Smirnova, Eren Grossmann, Aparna Binu Varghese, Karen Marlenne Garcia Alvarez, Andreas Schneemann, Thomas Hoyer, Ralf Wyrwa, Felix Helmut Schacher, Alexander Knebel   +10 more
wiley   +1 more source

Diesel exhaust pollution: chemical monitoring and cytotoxicity assessment

AIMS Environmental Science, 2015
Diesel engines are a significant source of nitrogen oxides (NOx) and particulate matter (PM) which may cause adverse health effects on the cardiovascular and pulmonary systems.
Lucky Joeng, Shahnaz Bakand, Amanda Hayes   +2 more
doaj   +1 more source

3D (Bio) Printing Combined Fiber Fabrication Methods for Tissue Engineering Applications: Possibilities and Limitations

Advanced Functional Materials, EarlyView.
Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana, Indra Apsite, Leonid Ionov   +2 more
wiley   +1 more source

Relationships Among Atmospheric Suspended Particulates with Different Sizes: A Case Study of Chongqing City

Atmosphere
The current study predicts that there would be scaling relationships among atmospheric suspended particulate materials (PMs) with different diameters. Through sampling the particulate materials concentration over different types of land use in municipal ...
Yan Gui, Haiyang Wang
doaj   +1 more source

Stabilization of Bio-Oss® particulates using photocurable hydrogel to enhance bone regeneration by regulating macrophage polarization

Frontiers in Bioengineering and Biotechnology, 2023
Bone substitutes are widely used in maxillofacial and oral surgeries. However, in clinical practice, bone substitutes with various forms, including separated particulates, powders, and blocks, have exhibited poor handling properties and space maintenance
Jiajia Wang, Xuanyu Qi, Yuqi Zhou, Guifang Wang, Yuanmeng Yang, Ting Jiang, Lei Yu, Shaoyi Wang, Wenjie Zhang   +8 more
doaj   +1 more source