Bibliografías temáticas / Environmental magnetic

Literatura académica sobre el tema "Environmental magnetic"

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Publicado: 6 de septiembre de 2023

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Artículos de revistas sobre el tema "Environmental magnetic"

1

Keith, McLauchlan. "Are environmental magnetic fields dangerous?" Physics World 5, n.º 1 (enero de 1992): 41–45. http://dx.doi.org/10.1088/2058-7058/5/1/30.

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Zhu, Jiahua, Suying Wei, Minjiao Chen, Hongbo Gu, Sowjanya B. Rapole, Sameer Pallavkar, Thomas C. Ho, Jack Hopper y Zhanhu Guo. "Magnetic nanocomposites for environmental remediation". Advanced Powder Technology 24, n.º 2 (marzo de 2013): 459–67. http://dx.doi.org/10.1016/j.apt.2012.10.012.

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Juutilainen, J. "Environmental Health Criteria 69: Magnetic Fields". International Journal of Radiation Biology 54, n.º 3 (enero de 1988): 505. http://dx.doi.org/10.1080/09553008814551891.

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HU, Shouyun. "Environmental magnetic studies of lacustrine sediments". Chinese Science Bulletin 47, n.º 7 (2002): 613. http://dx.doi.org/10.1360/02tb9141.

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Snowball, I. "Mineral magnetic signatures of environmental change". GFF 118, sup004 (octubre de 1996): 70. http://dx.doi.org/10.1080/11035899609546361.

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Tiwow, Vistarani Arini, Meytij Jeanne Rampe y Sulistiawaty Sulistiawaty. "Suseptibilitas Magnetik dan Konsentrasi Logam Berat Sedimen Sungai Tallo di Makassar". JURNAL ILMIAH SAINS 22, n.º 1 (27 de abril de 2022): 60. http://dx.doi.org/10.35799/jis.v22i1.38681.

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Keberadaan Sungai Tallo sangat penting bagi industri dan masyarakat yang berada di daerah aliran sungai. Namun, aktivitas sosial-ekonomi tidak dibarengi dengan pengelolaan sampah yang bertanggung jawab. Dengan demikian, secara umum sungai tercemar oleh polutan seperti logam berat. Oleh karena itu, perlu dilakukan monitoring sebagai langkah pengendalian kualitas Sungai Tallo untuk menghindari kondisi yang semakin buruk. Tujuan penelitian ini yaitu untuk meningkatkan pemahaman tentang hubungan antara parameter magnetik dan kandungan logam berat pada sedimen Sungai Tallo. Metode yang digunakan adalah metode magnetik lingkungan menggunakan parameter suseptibilitas magnetik. Selanjutnya, dilakukan pengujian X-Ray Fluorescence (XRF) untuk mengetahui konsentrasi unsur logam berat. Hasil menunjukkan Suseptibilitas magnetic sedimen Sungai Tallo berkisar 47,7 sampai 968,7 × 10-8 m3/kg. Suseptibilitas magnetik berhasil mengidentifikasi kelimpahan logam berat pada Sungai Tallo. Fe memiliki konsentrasi yang lebih tinggi dibandingkan Cr, Mn, dan Zn. Korelasi antara unsur logam berat Fe, Mn, dan Zn dengan suseptibilitas magnetik diperoleh korelasi positif kuat dimana unsur logam berat berkontribusi terhadap suseptibilitas magnetik. Studi ini mendukung parameter magnetic seperti suseptibilitas magnetik dapat berpotensial digunakan sebagai indikator polusi logam berat pada Sungai Tallo.Kata kunci: Logam berat; magnetik lingkungan; suseptibilitas magnetikMagnetic Susceptibility and Heavy Metal Concentration of Tallo River Sediments in MakassarABSTRACTThe existence of the Tallo River is very important for industry and people living in the watershed. However, socio-economic activities are not accompanied by responsible waste management. Thus, rivers are generally polluted by pollutants such as heavy metals. Therefore, monitoring is necessary as a measure to control the quality of the Tallo River to avoid worsening conditions. The purpose of this study was to improve understanding of the relationship between magnetic parameters and heavy metal content in Tallo River sediments. The method used was the environmental magnetic method using magnetic susceptibility parameters. Furthermore, X-Ray Fluorescence (XRF) was tested to determine the concentration of heavy metal elements. The results showed that the magnetic susceptibility of the Tallo River sediments ranged from 47.7 to 968.7 × 10-8 m3/kg. Magnetic susceptibility identified the abundance of heavy metals in the Tallo River. Fe has a higher concentration than Cr, Mn, and Zn. The correlation between heavy metal elements Fe, Mn, and Zn with magnetic susceptibility showed a strong positive correlation where heavy metal elements contribute to magnetic susceptibility. This study supports magnetic parameters such as magnetic susceptibility that can potentially be used as an indicator of heavy metal pollution in the Tallo River.Keywords: Environmental magnetic; heavy metal; magnetic susceptibility
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Tiwow, Vistarani Arini, Meytij Jeanne Rampe y Sulistiawaty Sulistiawaty. "Suseptibilitas Magnetik dan Konsentrasi Logam Berat Sedimen Sungai Tallo di Makassar". JURNAL ILMIAH SAINS 22, n.º 1 (27 de abril de 2022): 60. http://dx.doi.org/10.35799/jis.v22i1.38681.

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Keberadaan Sungai Tallo sangat penting bagi industri dan masyarakat yang berada di daerah aliran sungai. Namun, aktivitas sosial-ekonomi tidak dibarengi dengan pengelolaan sampah yang bertanggung jawab. Dengan demikian, secara umum sungai tercemar oleh polutan seperti logam berat. Oleh karena itu, perlu dilakukan monitoring sebagai langkah pengendalian kualitas Sungai Tallo untuk menghindari kondisi yang semakin buruk. Tujuan penelitian ini yaitu untuk meningkatkan pemahaman tentang hubungan antara parameter magnetik dan kandungan logam berat pada sedimen Sungai Tallo. Metode yang digunakan adalah metode magnetik lingkungan menggunakan parameter suseptibilitas magnetik. Selanjutnya, dilakukan pengujian X-Ray Fluorescence (XRF) untuk mengetahui konsentrasi unsur logam berat. Hasil menunjukkan Suseptibilitas magnetic sedimen Sungai Tallo berkisar 47,7 sampai 968,7 × 10-8 m3/kg. Suseptibilitas magnetik berhasil mengidentifikasi kelimpahan logam berat pada Sungai Tallo. Fe memiliki konsentrasi yang lebih tinggi dibandingkan Cr, Mn, dan Zn. Korelasi antara unsur logam berat Fe, Mn, dan Zn dengan suseptibilitas magnetik diperoleh korelasi positif kuat dimana unsur logam berat berkontribusi terhadap suseptibilitas magnetik. Studi ini mendukung parameter magnetic seperti suseptibilitas magnetik dapat berpotensial digunakan sebagai indikator polusi logam berat pada Sungai Tallo.Kata kunci: Logam berat; magnetik lingkungan; suseptibilitas magnetikMagnetic Susceptibility and Heavy Metal Concentration of Tallo River Sediments in MakassarABSTRACTThe existence of the Tallo River is very important for industry and people living in the watershed. However, socio-economic activities are not accompanied by responsible waste management. Thus, rivers are generally polluted by pollutants such as heavy metals. Therefore, monitoring is necessary as a measure to control the quality of the Tallo River to avoid worsening conditions. The purpose of this study was to improve understanding of the relationship between magnetic parameters and heavy metal content in Tallo River sediments. The method used was the environmental magnetic method using magnetic susceptibility parameters. Furthermore, X-Ray Fluorescence (XRF) was tested to determine the concentration of heavy metal elements. The results showed that the magnetic susceptibility of the Tallo River sediments ranged from 47.7 to 968.7 × 10-8 m3/kg. Magnetic susceptibility identified the abundance of heavy metals in the Tallo River. Fe has a higher concentration than Cr, Mn, and Zn. The correlation between heavy metal elements Fe, Mn, and Zn with magnetic susceptibility showed a strong positive correlation where heavy metal elements contribute to magnetic susceptibility. This study supports magnetic parameters such as magnetic susceptibility that can potentially be used as an indicator of heavy metal pollution in the Tallo River.Keywords: Environmental magnetic; heavy metal; magnetic susceptibility
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Tiwow, Vistarani Arini, Meytij Jeanne Rampe y Sulistiawaty Sulistiawaty. "Suseptibilitas Magnetik dan Konsentrasi Logam Berat Sedimen Sungai Tallo di Makassar". JURNAL ILMIAH SAINS 22, n.º 1 (27 de abril de 2022): 60. http://dx.doi.org/10.35799/jis.v22i1.38681.

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Keberadaan Sungai Tallo sangat penting bagi industri dan masyarakat yang berada di daerah aliran sungai. Namun, aktivitas sosial-ekonomi tidak dibarengi dengan pengelolaan sampah yang bertanggung jawab. Dengan demikian, secara umum sungai tercemar oleh polutan seperti logam berat. Oleh karena itu, perlu dilakukan monitoring sebagai langkah pengendalian kualitas Sungai Tallo untuk menghindari kondisi yang semakin buruk. Tujuan penelitian ini yaitu untuk meningkatkan pemahaman tentang hubungan antara parameter magnetik dan kandungan logam berat pada sedimen Sungai Tallo. Metode yang digunakan adalah metode magnetik lingkungan menggunakan parameter suseptibilitas magnetik. Selanjutnya, dilakukan pengujian X-Ray Fluorescence (XRF) untuk mengetahui konsentrasi unsur logam berat. Hasil menunjukkan Suseptibilitas magnetic sedimen Sungai Tallo berkisar 47,7 sampai 968,7 × 10-8 m3/kg. Suseptibilitas magnetik berhasil mengidentifikasi kelimpahan logam berat pada Sungai Tallo. Fe memiliki konsentrasi yang lebih tinggi dibandingkan Cr, Mn, dan Zn. Korelasi antara unsur logam berat Fe, Mn, dan Zn dengan suseptibilitas magnetik diperoleh korelasi positif kuat dimana unsur logam berat berkontribusi terhadap suseptibilitas magnetik. Studi ini mendukung parameter magnetic seperti suseptibilitas magnetik dapat berpotensial digunakan sebagai indikator polusi logam berat pada Sungai Tallo.Kata kunci: Logam berat; magnetik lingkungan; suseptibilitas magnetikMagnetic Susceptibility and Heavy Metal Concentration of Tallo River Sediments in MakassarABSTRACTThe existence of the Tallo River is very important for industry and people living in the watershed. However, socio-economic activities are not accompanied by responsible waste management. Thus, rivers are generally polluted by pollutants such as heavy metals. Therefore, monitoring is necessary as a measure to control the quality of the Tallo River to avoid worsening conditions. The purpose of this study was to improve understanding of the relationship between magnetic parameters and heavy metal content in Tallo River sediments. The method used was the environmental magnetic method using magnetic susceptibility parameters. Furthermore, X-Ray Fluorescence (XRF) was tested to determine the concentration of heavy metal elements. The results showed that the magnetic susceptibility of the Tallo River sediments ranged from 47.7 to 968.7 × 10-8 m3/kg. Magnetic susceptibility identified the abundance of heavy metals in the Tallo River. Fe has a higher concentration than Cr, Mn, and Zn. The correlation between heavy metal elements Fe, Mn, and Zn with magnetic susceptibility showed a strong positive correlation where heavy metal elements contribute to magnetic susceptibility. This study supports magnetic parameters such as magnetic susceptibility that can potentially be used as an indicator of heavy metal pollution in the Tallo River.Keywords: Environmental magnetic; heavy metal; magnetic susceptibility
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9

Chaves, Thais de Oliveira, Raquel Dosciatti Bini, Verci Alves de Oliveira Junior, Andressa Domingos Polli, Adriana Garcia, Gustavo Sanguino Dias, Ivair Aparecido dos Santos, Paula Nunes de Oliveira, João Alencar Pamphile y Luiz Fernando Cotica. "Fungus-Based Magnetic Nanobiocomposites for Environmental Remediation". Magnetochemistry 8, n.º 11 (26 de octubre de 2022): 139. http://dx.doi.org/10.3390/magnetochemistry8110139.

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The use of a variety of microorganisms for the degradation of chemicals is a green solution to the problem of environmental pollution. In this work, fungi–magnetic nanoparticles were studied as systems with the potential to be applied in environmental remediation and pest control in agriculture. High food demand puts significant pressure on increasing the use of herbicides, insecticides, fungicides, pesticides, and fertilizers. The global problem of water pollution also demands new remediation solutions. As a sustainable alternative to commercial chemical products, nanobiocomposites were obtained from the interaction between the fungus M. anisopliae and two different types of magnetic nanoparticles. Fourier transform infrared spectroscopy, optical and electron microscopy, and energy dispersive spectroscopy were used to study the interaction between the fungus and nanoparticles, and the morphology of individual components and the final nanobiocomposites. Analyses show that the nanobiocomposites kept the same morphology as that of the fungus in natura. Magnetic measurements attest the magnetic properties of the nanobiocomposites. In summary, these nanobiocomposites possess both fungal and nanoparticle properties, i.e., nanobiocomposites were obtained with magnetic properties that provide a low-cost approach benefiting the environment (nanobiocomposites are retrievable) with more efficiency than that of the application of the fungus in natura.
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Crockford, R. H. y P. M. Fleming. "Environmental magnetism as a stream sediment tracer: an interpretation of the methodology and some case studies". Soil Research 36, n.º 1 (1998): 167. http://dx.doi.org/10.1071/s97040.

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A comprehensive sediment sampling program was undertaken in the upper Molonglo catchment in south-eastern New South Wales to determine if mineral magnetics could be used to estimate sidestream contribution at river confluences in this environment. Some 12 confluences were examined over 1400 km 2 in 2 major basins and over 2 contrasting geological types. Sediment samples were divided into 7 size classes and the following magnetic properties measured: magnetic susceptibility at 2 frequencies, isothermal remanent magnetisation at 3 flux densities, and anhysteristic remanent magnetisation. The sidestream inputs were calculated for each particle size class from the range of magnetic parameters. Significant discrepancies and differences appeared in the resultant sidestream inputs, and this paper outlines the conclusions as to the reliability of the different analytical procedures. It is shown that both the concentration and magnetic grain size of ferrimagnetic minerals in the sediments must be taken into account. Where the difference in magnetic grain size between the upstream and sidestream sediments is small, the use of parameter crossplots or bulked magnetic ratios is generally not appropriate. The use of mass (concentration) magnetic values may be better. The difference in the demands of the crossplots and mass values methods is that crossplots require a wide range of mass magnetic concentrations in each branch, with the upstream and sidestream sediments having different magnetic grain sizes, whereas the mass values procedure does best with a very limited (but different) range of concentrations at the upstream and sidestream branches, but similar magnetic grain sizes. This paper provides an extensive discussion of the estimation technique using different parameter combinations, and uses 3 contrasting confluences as case studies.
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Tesis sobre el tema "Environmental magnetic"

1

Owings, Paul C. "High Gradient Magnetic Separation of nanoscale magnetite". Thesis, Kansas State University, 2011. http://hdl.handle.net/2097/12020.

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Master of Science
Department of Civil Engineering
Alexander P. Mathews
Nanoscale magnetite is being examined for possible uses as an adsorbent of heavy metals and for the enhancement of water treatment processes such as stripping of trichloroethylene (TCE) from contaminated water supplies and wastewaters. Methods for recovering nanoscale magnetite must be developed before the particles can be used in water treatment processes. This is necessary because expelling high amounts of particles into the environment will be unacceptable and costly; if captured they can be reused; additionally, they could potentially cause environmental impacts due to their stability in an aqueous environment and possible toxicity. Nanoscale magnetite is superparamagnetic, so it has a high magnetic susceptibility, and hence it is very attracted to magnetized materials. Utilizing the magnetic properties of magnetite may be one possible means of separating the particles from a treatment process. High Gradient Magnetic Separation (HGMS) has been studied for the separation of micron and even tenths of a micron size particles, but there is little experimental data for HGMS of nanoscale magnetite. This research looks to filter nanoscale magnetite through a HGMS and determine the capture efficiency of the filter. Subsequently, the filter was backwashed to determine particle recover efficiencies. The flow rate was adjusted to determine the dependency of particle capture efficiency on cross sectional velocity through the filter. Additionally, particle loading was changed to better understand the correlation of particle loading with capture efficiency. Filtrations for nanoscale magnetite dispersed with sodium tripolyphosphate were also completed as well as filtrations of nanoscale magnetite coated with silica and magnetite silica composites. Experimental data in this research indicates that magnetite nanoparticles can be captured at 99.8% efficiency or higher in a well-designed filtration system. Capture efficiencies around 99.8% have been found for magnetite. The silica coated magnetite and magnetite silica composites were captured at efficiencies as high as 96.7% and 97.9%, respectively. The capture efficiency of the dispersed magnetite is lower than non-dispersed magnetite and most promising at relatively low fluid flow velocities and particle loadings. The maximum capture efficiency for dispersed magnetite particles was 90.3%. Both magnetite and dispersed magnetite were successfully recovered using backwash at pH of 10 to 11.
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Yates, Gillian. "Environmental magnetism applied to archaeology". Thesis, University of Liverpool, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.329625.

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Ying, Tung-Yu. "Novel environmental processes using electric and magnetic fields". Diss., Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/20156.

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Lees, Joan Anne. "Modelling the magnetic properties of natural and environmental materials". Thesis, Coventry University, 1994. http://curve.coventry.ac.uk/open/items/aa273a60-0c0d-a613-81b9-b95cc2ec3fdd/1.

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Magnetic properties have been used to characterize natural and environmental materials. An evaluation of magnetic properties, for the modelling of sources of materials and minerals, has been completed. A methodological framework has been developed for the application of magnetic techniques to studies involving the quantification of sources of materials and minerals in any environment. the framework includes the idntification of sources using magnetic reconnaissance and multi-variate statistical classification techniques. magnetic measurements used are susceptibility (both field and laboratory), remanence and magnetization measurements. the linear additivity of magnetic measurements, and classification and linear modelling techniques, ahve been tested using datea for artificial laboratory mixtures and hypothetical mixing experimentrs. The limitations of using magnetic properties with these statistical and mathematical techniques are defined. the famework allows for hte testing of suitabililty of manetic modelling techniques in any sourceing study.
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Egli, Ramon. "Environmental influences on the magnetic properties of lake sediments". Zürich : [s.n.], 2003. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=15090.

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Quboa, Kaydar Majeed. "Environmental electric and magnetic fields : measurements and communications implications". Thesis, University of Salford, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.258349.

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Lee, Seungwoo. "Development of magnetic composite photocatalytic particles for environmental applications". [Gainesville, Fla.] : University of Florida, 2004. http://purl.fcla.edu/fcla/etd/UFE0008266.

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Augé, Laurent J. (Laurent Jacques) 1980. "Structural magnetic induction dampers in buildings". Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/29332.

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Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2003.
Includes bibliographical references (leaf 49).
This thesis discusses the feasibility of structural magnetic induction dampers for dampening mechanical vibrations in buildings subjected to strong dynamic excitations. The concept of energy harvesting in various fields of engineering is first examined. Then it is applied to the design of magnetic induction dampers in buildings. Various implementations of these dampers are proposed and the related expected performances are estimated. Simulations on buildings modeled as discrete multiple-degree-of-freedom shear beams subjected to earthquakes quantify the results and allow for a comparison of the performances with nonisolated and base-isolated buildings. This study demonstrates the potential efficiency of such dampers for harvesting mechanical energy in buildings and encourages further developments on this topic.
by Laurent J. Auge.
M.Eng.
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Yu, L. "Environmental applications of mineral magnetic measurement : Towards a quantitative approach". Thesis, University of Liverpool, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234577.

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Crook, Nigel Paul. "The application of quantitative environmental magnetic measurements to sedimentary systems". Thesis, Manchester Metropolitan University, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.248812.

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Libros sobre el tema "Environmental magnetic"

1

Frank, Oldfield, ed. Environmental magnetism. London: Allen & Unwin, 1986.

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1939-, Heller Friedrich, ed. Environmental magnetism: Principles and applications of enviromagnetics. Amsterdam: Academic Press, 2003.

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A, Nanny Mark, Minear R. A y Leenheer J. A, eds. Nuclear magnetic resonance spectroscopy in environmental chemistry. New York: Oxford University Press, 1997.

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Environmental magnetic susceptibility: Using the Bartington MS2 system. Kenilworth: Chi Pub., 1994.

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Quboa, Kaydar Majeed. Environmental electric and magnetic fields: Measurements and communications implications. Salford: University of Salford, 1990.

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Programme, United Nations Environment y International Radiation Protection Association, eds. Magnetic fields health and safety guide. Geneva: World Health Organization, 1989.

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United States. Environmental Protection Agency. Office of Toxic Substances. Toxic chemical release inventory magnetic media submission instructions. Washington, D.C: U.S. Environmental Protection Agency, Office of Toxic Substances, 1991.

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NMR spectroscopy: A versatile tool for environmental research. Chichester, West Sussex: John Wiley & Sons Inc., 2014.

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Electric and magnetic fields: Invisible risks? Amsterdam, Netherlands: Gordon and Breach Publishers, 1996.

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Florida Electric and Magnetic Fields Science Advisory Panel. Report of the Florida Electric and Magnetic Fields Science Advisory Panel. [Tallahasse, Fla.?: s.n., 1987.

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Capítulos de libros sobre el tema "Environmental magnetic"

1

Knödel, Klaus. "Magnetic Methods". En Environmental Geology, 161–84. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-74671-3_6.

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Thompson, Roy y Frank Oldfield. "Natural magnetic minerals". En Environmental Magnetism, 13–20. Dordrecht: Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-011-8036-8_3.

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Thompson, Roy y Frank Oldfield. "Magnetic properties of solids". En Environmental Magnetism, 3–12. Dordrecht: Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-011-8036-8_2.

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Thompson, Roy y Frank Oldfield. "The Earth’s magnetic field". En Environmental Magnetism, 39–48. Dordrecht: Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-011-8036-8_5.

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Thompson, Roy y Frank Oldfield. "Techniques of magnetic measurements". En Environmental Magnetism, 49–64. Dordrecht: Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-011-8036-8_6.

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Lange, Gerhard, Ugur Yaramanci y Reinhard Meyer. "Surface Nuclear Magnetic Resonance". En Environmental Geology, 403–30. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-74671-3_12.

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Thompson, Roy y Frank Oldfield. "Magnetic minerals in the atmosphere". En Environmental Magnetism, 124–40. Dordrecht: Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-011-8036-8_11.

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Thompson, Roy y Frank Oldfield. "Magnetic properties of natural materials". En Environmental Magnetism, 21–38. Dordrecht: Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-011-8036-8_4.

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Thompson, Roy y Frank Oldfield. "Magnetic minerals and environmental systems". En Environmental Magnetism, 65–71. Dordrecht: Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-011-8036-8_7.

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Thompson, Roy y Frank Oldfield. "Magnetic minerals and fluvial processes". En Environmental Magnetism, 88–100. Dordrecht: Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-011-8036-8_9.

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Actas de conferencias sobre el tema "Environmental magnetic"

1

Guo, Zhanhu, Jiahua Zhu, Suying Wei y Thomas Ho. "Magnetic Nanocomposites for Environmental Remediation". En 5th Asian Particle Technology Symposium. Singapore: Research Publishing Services, 2012. http://dx.doi.org/10.3850/978-981-07-2518-1_133.

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Hirt, Ann M. "Magnetic methods applied to the material, life, and environmental sciences". En INTERNATIONAL CONFERENCE ON ELECTROMAGNETISM, ROCK MAGNETISM AND MAGNETIC MATERIAL (ICE-R3M) 2019. AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0015817.

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Folio, Les. "Computer Generated Holographic Magnetic Resonance". En International Conference On Environmental Systems. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1997. http://dx.doi.org/10.4271/972289.

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Anderson, Ken, Howard G. Levine y Karl Hasenstein. "Development of the Magnetic Field Apparatus". En International Conference On Environmental Systems. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2000. http://dx.doi.org/10.4271/2000-01-2475.

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Menshov, O., A. Sukhorada, R. Homenko y O. Kruglov. "Ultradetailed Environmental Magnetic Investigations in Ukraine". En Near Surface Geoscience 2012 – 18th European Meeting of Environmental and Engineering Geophysics. Netherlands: EAGE Publications BV, 2012. http://dx.doi.org/10.3997/2214-4609.20143416.

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"Magnetic Nanoparticle: Synthesis and Environmental Applications". En International Conference on Chemical, Civil and Environmental Engineering. International Institute of Chemical, Biological & Environmental Engineering, 2014. http://dx.doi.org/10.15242/iicbe.c1114009.

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Kim, J. G., C. M. Chun, J. H. Lee, Y. C. Cho y I. H. Nam. "Remediation of arsenic contaminated soil with high gradient magnetic separation". En ENVIRONMENTAL IMPACT 2016. Southampton UK: WIT Press, 2016. http://dx.doi.org/10.2495/eid160081.

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Pruksanubal, P. y S. Phoomvutthisarn. "Investigation of 2-layer Shield for Magnetic Shielding Considering Magnetic Hysteresis". En The 2006 4th Asia-Pacific Conference on Environmental Electromagnetics. IEEE, 2006. http://dx.doi.org/10.1109/ceem.2006.258027.

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Celozzi, S. y F. Garzia. "Magnetic field reduction by means of active shielding techniques". En Environmental Health Risk 2003. Southampton, UK: WIT Press, 2003. http://dx.doi.org/10.2495/ehr030091.

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Beard, Les P. "Magnetic Anomalies of Impact Craters at Low Magnetic Latitudes". En Symposium on the Application of Geophysics to Engineering and Environmental Problems 2012. Environment and Engineering Geophysical Society, 2012. http://dx.doi.org/10.4133/1.4721703.

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Informes sobre el tema "Environmental magnetic"

1

Gaulden, Patrick y Simona Hunyadi Murph. Hybrid Magnetic Core-Shell Nanophotocatalysts for Environmental Applications. Office of Scientific and Technical Information (OSTI), julio de 2016. http://dx.doi.org/10.2172/1281782.

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Krause, Thomas, Mehrdad Keshefi, Ross Underhill y Lynann Clapham. PR652-203801-R02 Magnetic Object Model for Large Standoff Magnetometry Measurement. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), septiembre de 2021. http://dx.doi.org/10.55274/r0012151.

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Resumen
Ferromagnetic pipeline steel may exhibit magnetization, even in the absence of applied magnetic fields, due to remnant fields or the presence of pipe wall stress. Remnant magnetization may be present from previous or existing exposure to a magnetic field, while pipe wall stress induced magnetization can result from line pressure, environmental stresses due to settling or geohazard conditions, and residual stresses due to nonuniform plastic deformation caused by manufacturing processes, installation or operating conditions. The local stress state of the pipeline may also be altered by corrosion or damage. The physical basis for magnetization in pipelines due to intrinsic and resident stresses is examined here using the magnetic object (MO) model. MOs are characterized as regions of relatively independent magnetic behaviour, typically about the size of a ferromagnetic steel grain, to which expressions for the magnetic energy of local domain structures can be applied. The lowest energy state for an MO is a flux-closed structure, but the presence of stress can modify the MO energy through inverse magnetostrictive effects on the domain structure and thereby, produce a state of magnetization. This magnetization may be altered by the introduction of additional stress sources including pressurization of the pipe, geological-environment effects, sources of magnetization that include the proximity of other ferromagnetic pipes, even those comprising sections of the same pipeline, and changes in the pipe structure that may be brought about by deformation, corrosion or cracking. This work shows that the fundamental building block of the MO, combined with considerations of overall changes in domain structure due to these factors, can be used to model the generation of magnetic fields measured outside of pipeline structures. This will have implications for understanding sources of pipeline magnetization that are passively measured above buried oil and gas pipelines with the objective of detecting anomalous conditions that may indicate compromised conditions for safe pipeline operation.
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DEFENSE NUCLEAR AGENCY WASHINGTON DC. Superconducting Magnetic Energy Storage (SMES-ETM) System. Environmental Impact Assessment Process Implementation Plan. Fort Belvoir, VA: Defense Technical Information Center, noviembre de 1989. http://dx.doi.org/10.21236/ada338872.

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Holdren, J. P., D. H. Berwald, R. J. Budnitz, J. G. Crocker, J. G. Delene, R. D. Endicott, M. S. Kazimi, R. A. Krakowski, B. G. Logan y K. R. Schultz. Report of the senior committee on environmental, safety, and economic aspects of magnetic fusion energy. Office of Scientific and Technical Information (OSTI), septiembre de 1989. http://dx.doi.org/10.2172/5006294.

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Bristow, Q. y C. J. Mwenifumbo. A new temperature, capacitive-resistivity, and magnetic-susceptibility borehole probe for mineral exploration, groundwater, and environmental applications. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2011. http://dx.doi.org/10.4095/289197.

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Holdren, J. P., D. H. Berwald, R. J. Budnitz, J. G. Crocker, J. G. Delene, R. D. Endicott, M. S. Kazimi, R. A. Krakowski, B. G. Logan y K. R. Schultz. Summary of the report of the Senior Committee on Environmental, Safety, and Economic Aspects of Magnetic Fusion Energy. Office of Scientific and Technical Information (OSTI), septiembre de 1987. http://dx.doi.org/10.2172/5867696.

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Li, Yaoguo, Richard Krahenbuhl, Todd Meglich, Doug Oldenburg, Len Pasion, Steve Billings, Remke van Dam y Bruce Harrison. Improving UXO Detection and Discrimination in Magnetic Environments. Fort Belvoir, VA: Defense Technical Information Center, mayo de 2010. http://dx.doi.org/10.21236/ada572266.

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Radoski, Henry. Determining the Magnetic Environment in Which Solar Activity Occurs. Fort Belvoir, VA: Defense Technical Information Center, junio de 1998. http://dx.doi.org/10.21236/ada383274.

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Vittitoe, C. Magnetic-field shielding of satellites from high-energy-electron environments. Office of Scientific and Technical Information (OSTI), mayo de 1990. http://dx.doi.org/10.2172/7002129.

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McGrath, P. MAGRAV - an interactive gravity/magnetic program for the UNIX environment. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1993. http://dx.doi.org/10.4095/192430.

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