scholarly journals Biomonitoring of atmospheric particulate pollution via chemical composition and magnetic properties of roadside tree leaves

2018 ◽  
Vol 25 (26) ◽  
pp. 25994-26004 ◽  
Author(s):  
Fatemeh Kardel ◽  
Karen Wuyts ◽  
Karolien De Wael ◽  
Roeland Samson
Keyword(s):  
Magnetic Properties ◽  
Chemical Composition ◽  
Tree Leaves ◽  
Atmospheric Particulate ◽  
Particulate Pollution

Biomonitoring of traffic air pollution in Rome using magnetic properties of tree leaves

2003 ◽  
Vol 37 (21) ◽  
pp. 2967-2977 ◽  
Author(s):  
Eva Moreno ◽  
Leonardo Sagnotti ◽  
Jaume Dinarès-Turell ◽  
Aldo Winkler ◽  
Antonio Cascella
Keyword(s):  
Air Pollution ◽  
Magnetic Properties ◽  
Tree Leaves

scholarly journals Optimization of Magnetic Properties of Magnetic Microwires by Post-Processing

Processes ◽  
2020 ◽  
Vol 8 (8) ◽  
pp. 1006
Author(s):  
Valentina Zhukova ◽  
Paula Corte-Leon ◽  
Lorena González-Legarreta ◽  
Ahmed Talaat ◽  
Juan Maria Blanco ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Chemical Composition ◽  
Hysteresis Loops ◽  
Structural Features ◽  
Post Processing ◽  
Soft Magnetic ◽  
Magnetic Microwires ◽  
Prepared State ◽  
Induced Magnetic Anisotropy ◽  
Selection Of

The influence of post-processing conditions on the magnetic properties of amorphous and nanocrystalline microwires has been thoroughly analyzed, paying attention to the influence of magnetoelastic, induced and magnetocrystalline anisotropies on the hysteresis loops of Fe-, Ni-, and Co-rich microwires. We showed that magnetic properties of glass-coated microwires can be tuned by the selection of appropriate chemical composition and geometry in as-prepared state or further considerably modified by appropriate post-processing, which consists of either annealing or glass-coated removal. Furthermore, stress-annealing or Joule heating can further effectively modify the magnetic properties of amorphous magnetic microwires owing to induced magnetic anisotropy. Devitrification of microwires can be useful for either magnetic softening or magnetic hardening of the microwires. Depending on the chemical composition of the metallic nucleus and on structural features (grain size, precipitating phases), nanocrystalline microwires can exhibit either soft magnetic properties or semi-hard magnetic properties. We demonstrated that the microwires with coercivities from 1 A/m to 40 kA/m can be prepared.

The washout effects of rainfall on atmospheric particulate pollution in two Chinese cities

2016 ◽  
Vol 215 ◽  
pp. 195-202 ◽  
Author(s):  
Ling-Chuan Guo ◽  
Yonghui Zhang ◽  
Hualiang Lin ◽  
Weilin Zeng ◽  
Tao Liu ◽  
...  
Keyword(s):  
Atmospheric Particulate ◽  
Chinese Cities ◽  
Particulate Pollution

Impact of thermal oxidation on chemical composition and magnetic properties of iron nanoparticles

2018 ◽  
Vol 458 ◽  
pp. 346-354 ◽  
Author(s):  
Marcin Krajewski ◽  
Katarzyna Brzozka ◽  
Mateusz Tokarczyk ◽  
Grzegorz Kowalski ◽  
Sabina Lewinska ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Chemical Composition ◽  
Thermal Oxidation ◽  
Iron Nanoparticles

Effect of Ba Strate Addition on Magnetic Properties of Ba-System W-Type Ferrite Magnets

2007 ◽  
Vol 534-536 ◽  
pp. 1305-1308
Author(s):  
Hiroshi Yamamoto ◽  
Hiroaki Nishio ◽  
Yoshihito Sawayama
Keyword(s):  
Magnetic Properties ◽  
Chemical Composition ◽  
Physical Properties ◽  
Optimum Conditions ◽  
Nitrogen Gas ◽  
Lattice Constants ◽  
Typical Sample ◽  
Gas Atmosphere ◽  
Drying Condition ◽  
Sintering Condition

Experiment was carried out to investigate the effect of Ba Stearate as a reducing agent on the magnetic and physical properties of anisotropic BaFe2-W type ferrite magnets. It was found that the magnetic properties of BaO･8.5Fe2O3 were improved by adding 0.3 wt% of Ba Stearate, 0.5 wt% of SiO2, and 0.5 wt% of CaO together. The optimum conditions for making magnets were as follows; chemical composition: Ba1.029Ca0.127Si0.097C0.053Fe2+ 2.456Fe3+ 15.392O27, semisintering condition: 1350 °C×4.0 h in nitrogen gas atmosphere, drying condition: 180 °C×2.0 h in air, sintering condition: 1160 °C×1.5 h in nitrogen gas atmosphere. Magnetic and physical properties of a typical sample were Jm = 0.46 T, Jr = 0.43 T, HcJ = 182.3 kA/m, HcB = 177.2 kA/m, (BH)max = 33.8 kJ/m3, TC = 495 °C and KA = 2.65×105 J/m3 and HA = 1332 kA/m. The lattice constants of this compound were a = 5.883×10-10 m, c = 32.92×10-10 m, and c/a = 5.596.

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