Results 61 to 70 of about 417,536 (415)

Influence of Specific Ball‐Milling Energy on Mechanical and Corrosion Properties of Zn–0.2 Graphene Nanoplatelet Composites

Advanced Engineering Materials, EarlyView.
In this study, the effect of specific ball‐milling energy (SBME) on the mechanical and corrosion properties of graphene nanoplatelets (GNPs) Zn matrix composites is presented. GNPs are uniformly dispersed in the Zn powder mixtures at the optimal SBME of 32.82 kJ g−1.
Humayun Kabir, Khurram Munir, Cuie Wen, Yuncang Li   +3 more
wiley   +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

Spatial statistics of atmospheric particulate matter in China [PDF]

published in Atmospheric Environment, 2016, 134:162-167, 2018
In this paper, the spatial dynamics of the atmospheric particulate matters (resp. PM$_{10}$ and PM$_{2.5}$) are studied using turbulence methodologies. It is found experimentally that the spatial correlation function $\rho(r)$ shows a log-law on the mesoscale range, i.e., $50\le r\le 500\,{km}$, with an experimental scaling exponent $\beta=0.45$.
arxiv   +1 more source

Nanoparticle‐Coated X2CrNiMo17‐12‐2 Powder for Additive Manufacturing – Part I: Surface, Flowability, and Optical Properties of SiC, Si, and Si3N4 Coated Metal Powders

Advanced Engineering Materials, EarlyView.
Herein, silicon‐based nanoparticle coatings on X2CrNiMo17‐12‐2 metal powder are presented. The coating process scale, process parameters, nanoparticle size (65–200 nm) as well as the coating amount are discussed regarding powder properties. The surface roughness affects the flowability, while reflectance depends on the coating material and surface ...
Arne Lüddecke, Nick Hantke, Harald Zetzener, Jan T. Sehrt, Arno Kwade   +4 more
wiley   +1 more source

Impact of Diesel Engine Exhaust Gases on Environmental Pollution and Human Health

Promet (Zagreb), 2004
Fine particles that can be found in the exhaust gases of dieselengines and have a diameter of 2. 5 !Jl1l and ultra-fine particlesof 0.1 !Jl1l in diameter are mainly products of the combustionprocess.
Ivan Mavrin, Damir Knežević, Ivo Jurić   +2 more
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

Evolution of ozone, particulates, and aerosol direct radiative forcing in the vicinity of Houston using a fully coupled meteorology‐chemistry‐aerosol model

, 2006
[1] A new fully coupled meteorology-chemistry-aerosol model is used to simulate the urban- to regional-scale variations in trace gases, particulates, and aerosol direct radiative forcing in the vicinity of Houston over a 5 day summer period.
J. Fast, W. Gustafson, R. Easter, R. Zaveri, J. Barnard, E. Chapman, G. Grell, S. Peckham   +7 more
semanticscholar   +1 more source

Mesenchymal Stem Cells‐Derived Extracellular Vesicles Mimetics as Osteoinductive Mediators for Bone Healing

Advanced Functional Materials, EarlyView.
Mesenchymal stem cell‐derived nanoghosts (MSC‐NGs) mimic naturally secreted extracellular vesicles (MSC‐EVs) in structure and physicochemical properties but can be synthesized at more translatable yields. As osteogenic agents, MSC‐NGs demonstrate superior outcomes compared to MSC‐EVs.
Antoine Karoichan, Ling Li, Celine J. Agnes, Bettina M. Willie, Maryam Tabrizian   +4 more
wiley   +1 more source

Role of Pressure and Expansion on the Degradation in Solid‐State Silicon Batteries: Implementing Electrochemistry in Particle Dynamics

Advanced Functional Materials, EarlyView.
A simulation technique for assessing both the fabrication and operation of a solid‐state Si battery is demonstrated by integrating particle dynamics with mass/charge transport. Although, the fabrication pressure (Pfab) increased the inter‐particle contacts and reduced the concentration (ηconc) and Li‐ion (ηLi+) overpotentials during discharging, it ...
Magnus So, Takeru Yano, Agnesia Permatasari, Van Lap Nguyen, Gen Inoue   +4 more
wiley   +1 more source

Apparatus for sampling particulates in gases [PDF]

, 1973
A device for sampling particulates in gases is described. The device is used to obtain samples of the upper atmosphere. The equipment used a common source of gas pressure to provide the driving gas of an air ejector pump.
Wood, R. C.
core   +1 more source