Relevant Magnetic Parameters and Heavy Metals from ...

The vertical distribution of sediments reveals a recent anthropogenic influence, possibly, belonging to the last 20-40 years. Four out of all the magnetic parameters (magnetic susceptibility, anhysteric remanent magnetisation, S-ratio and κ ARM/κ) were chosen in order to investigate their relationship with contents of heavy metals.

Combination of magnetic parameters and heavy metals to ...

Combination of magnetic parameters and heavy metals to discriminate soil-contamination sources in Yinchuan--a typical oasis city of Northwestern China. Dunsheng Xia Key Laboratory of West China's Environmental System (Ministry of Education), Lanzhou University of China, Lanzhou 730000, China.

Correlation patterns between magnetic parameters and …

The potential use of environmental magnetism to investigate heavy metal pollution was investigated by analyzing sediment samples from a short sediment core (Z07) from the Yellow River Estuary. The heavy metal concentrations and speciation, grain sizes, and magnetic properties were determined, and correlations between the parameters were identified.

The Basics of Permanent Magnet Motor Operations

• the permeance P of the magnetic circuit determines the operating point of the permanent magnet: air gap thickness parallel the direction of flux in inches: magnetic reluctance factor - typically 1.1 - 1.5: magnet thickness parallel the direction of flux in inches: magnetic flux leakage g m F g F m P ℜ ℜ⋅ ⋅ =

Relating Magnetic Parameters to Heavy Metal …

Relating Magnetic Parameters to Heavy Metal Concentrations and Environmental Factors at Formosa Mine Superfund Site, Douglas County, OR Upton, T. L. Abstract. Advances in the field of environmental magnetism have led to exciting new applications for this field. Magnetic minerals are ubiquitous in the environment and tend to have an affinity for ...

The relationship between magnetic parameters and heavy ...

Relevant Magnetic parameters and heavy metals from relatively polluted stream sediments—vertical and longitudinal distribution along a cross-city stream in Buenos Aires Province, Argentina. Chaparro. Stud Geophys Geod 2004 Show 10 more references (10 of 47) Citations & impact . Impact metrics.

The Physics of Polarization - High Altitude Observatory

magnetic waves which is connected with the trasversality character, with respect to the direction of propagation, of ... Stokes parameters of the entrance beam, S' has a similar meaning for the exit beam, and M is a 4x4 matrix given by . Polarization and optical devices IV

Magnetic evidence for heavy metal pollution of topsoil in ...

Relationship between magnetic parameters and heavy element contents of arable soil around Meishan steel mill, Nanjing. Sci China Ser D, 39(9): 1304–1312 (in Chinese) Google Scholar Hanesch M, Scholger R (2002). Mapping of heavy metal loadings in soils by means of magnetic susceptibility measurements.

Giant magnetic Grüneisen parameters in nearly ...

The size of the volume magnetostriction in paramagnetic systems determines a magnetic Grüneisen parameter in analogy to the usual thermal Grüneisen parameter. Both nearly ferromagnetic and heavy-fermion systems show magnetic Grüneisen parameters up to 2 orders of magnitude larger than for normal metals. The thermal Grüneisen parameter in nearly magnetic …

Effects of physicochemical properties on heavy metal ...

The obtained results of magnetic parameters with the physicochemical parameters in sediments showed that its value decreases in grain size. The heavy metal analysis with physicochemical parameters indicated that the increase in metal concentration leads to raise of percentage of sediment texture values.

Magnetic properties of the layered heavy-fermion ...

We report the magnetic properties of the layered heavy-fermion antiferromagnet ${mat{CePdGa}}_{6}$ and their evolution upon tuning with the application of magnetic field and pressure. ${mat{CePdGa}}_{6}$ orders antiferromagnetically below ${T}_{mat{N}}$ = 5.2 K, where there is evidence for heavy-fermion behavior from an enhanced Sommerfeld …

Combination of magnetic parameters and heavy metals to ...

Moreover, in recent years the use of magnetic parameters as proxies for quantifying or semi-quantifying the concentrations of certain contaminants, such as heavy metals in street dusts, and in atmospheric particles and soils, has also been demonstrated (Shu et al., 2001, Kim et al., 2007, Kim et al., 2009, Hu et al., 2008, Canbay et al., 2010 ...

The relationship between magnetic parameters and heavy ...

The relationship between magnetic parameters and heavy metal contents of indoor dust in e-waste recycling impacted area, Southeast China Sci Total Environ. 2012 Sep 1;433:302-8. doi: 10.1016/j.scitotenv.2012.06.067. Epub 2012 Jul 15. Authors Zongmin Zhu 1 ...

Magnetic properties as indicators of heavy metals ...

Summary. This paper deals with the magnetic properties [magnetic susceptibility, saturation isothermal remanent magnetization (SIRM), magnetomineralogicl parameters], the contents of heavy metals (Fe, Mn, Cd, Cr, Cu, Pb and Zn) and their mutual relationship in the urban topsoils of Luoyang, China.

The relationship between magnetic parameters and heavy ...

The results of basic magnetic parameters, including χ, χ fd %, SRIM and S-ratio, are showed in Table 1.The values of χ in the dust ranged from 101 to 636 × 10 − 8 m 3 kg − 1 with a mean of 329 × 10 − 8 m 3 kg − 1, which were notably lower than the values of coal fly ash (579 × 10 − 8 m 3 kg − 1 for lignite and 3506 × 10 − 8 m 3 kg − 1 for hard coal) (Magiera et al., 2011 ...

Environmental magnetic parameter characteristics as ...

Environmental magnetic parameter characteristics as indicators of heavy metal pollution in the surface sediments off the Zhoushan Islands in the East China Sea. ... can well explain the sources of terrigenous sediment. Therefore, the environmental magnetic parameters in the continental shelf area can be used as a precursor for geochemical ...

Magnetovolume effects and magnetic Grüneisen …

Magnetic Grüneisen parameters deduced from magnetostriction data attain giant size in both nearly-ferromagnetic and in heavy-fermion systems, but their relation to thermal Grüneisen parameters shows striking differences, which correlate with the relative size of susceptibility and specific heat. As expected theoretically when electron correlations are taken into account, a …

Magnetic investigation of heavy metals contamination in ...

4.3 Magnetic parameters as indicators of heavy metals contamination in urban soils. Generally, magnetic measurements as a tool for evaluating pollutions are based on two reasons. First, the magnetic parameters (e.g. magnetic susceptibility) of soils are greater than its corresponding background.

Environmental magnetic parameter characteristics as ...

SPSS version 17.0 software is used for the statistical analysis of the data. The correlation analysis between heavy metal elements and magnetic parameters and between major elements and magnetic parameters were conducted using a Pearson correlation, and the level of significance was set at p < 0.01 (two-tailed). 3. Results and discussion3.1.

Magnetic properties as indicators of heavy metals ...

The potential use of environmental magnetism to investigate heavy metal pollution was investigated by analyzing sediment samples from a short sediment core (Z07) from the Yellow River Estuary. The heavy metal concentrations and speciation, grain sizes, and magnetic properties were determined, and correlations between the parameters were identified.

Correlation patterns between magnetic parameters and …

Correlations between magnetic parameters and heavy metal concentrations. High χ fd % and χ ARM-20mT values were found for unit I of core Z07 (before 2003; Fig. 2), indicating that very fine nano-sized superparamagnetic and single domain magnetic particles made strong contributions to the magnetic properties (Wang et al., 2019).

Relationship between magnetic parameters and heavy …

Magnetic parameters and element contents were determined in core NJ008 collected from the uppermost ca. 40 cm in a steel company in southwest Nanjing. The results showed that magnetic susceptibility (χ), saturation isothermal remanent magnetization (SIRM) and anhysteretic remanent magnetization (ARM) were enhanced in the uppermost 20 cm, with a …

Transformer Design & Design Parameters

use of non-magnetic inserts, magnetic shunts, e.t.c, •selection of winding type (low temperature rise - use of CTC, short-circuit withstand) Transformer Consulting Services Inc. Transformer Design: Low Voltage (LV)