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magnetic field receptor

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Journal Article
Published: 01 July 2001
European Journal of Mineralogy (2001) 13 (4): 659–669.
..., which makes this tissue likely to contain a magnetic-field receptor. In the upper-beak skin of homing pigeons, we localised high concentrations of Fe 3+ , which form distinct coherent elongated structures extending up to 200 μ in length. Rather than being randomly distributed over the tissue...
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Physical basis of the proposed <span class="search-highlight">receptor</span> mechanism: deformation of an SP clu...
Published: 01 July 2001
Fig. 4. Physical basis of the proposed receptor mechanism: deformation of an SP cluster by magnetic-field changes. In the absence of an external magnetic field, a cluster of SP particles assumes a spherical shape (top sketch). In an external field H 0 , the energetically most favourable shape
Journal Article
Published: 01 April 2000
Bulletin of the Seismological Society of America (2000) 90 (2): 312–323.
... conduit of magnetic field information to the brain, from magnetite-based receptors located in the frontal regions of the head ( Semm and Beason, 1990 ; Walker et al., 1997 ). More recently, lipophillic dyes and scanning laser confocal reflection microscopy have been used to identify some...
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Journal Article
Journal: The Leading Edge
Published: 01 September 2008
The Leading Edge (2008) 27 (9): 1098–1102.
... of the impulses perceived at the receptors.” Reproducible field recording, while a major improvement in the seismic art, was not the only unique aspect of the sonograph. It produced what today are called slant stacks. He called the process CDR for “controlled directional reception.” Rieber's CDR process...
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Journal Article
Published: 01 July 1950
Bulletin of the Seismological Society of America (1950) 40 (3): 217–231.
...-bronze hinge, and is immersed in a magnetic field averaging 1,700 gauss flux density. This mag- netic field is produced by a winding energized by 10 amperes at 6 volts. A similar field winding structure with an air-gap flux density of 1,700 gauss is also mounted on the steel chassis near the upper end...
Journal Article
Published: 01 March 2024
Geochemistry: Exploration, Environment, Analysis (2024) 24 (1): geochem2023-044.
...Yalong Zhou; Zhijuan Guo; Min Peng; Chengwen Wang; Hangxin Cheng Abstract The pollution risk of potentially toxic elements (PTEs) in soil is a common concern in the fields of environmental science and agriculture. The spatial distribution characteristics, pollution risk assessment and genetic...
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Journal Article
Journal: Elements
Published: 01 August 2023
Elements (2023) 19 (4): 234–238.
... magnetosomes allows them to sense the magnetic field and transfer the magnetic moment to their cell body. However, this stimulus needs to be coordinated with chemotactic receptors and flagella propulsion to deliver an effective magnetotactic behavior. Migratory animals have developed a complex...
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Journal Article
Journal: The Leading Edge
Published: 01 May 2008
The Leading Edge (2008) 27 (5): 613–618.
... and larger and larger magnets with oil damping. As sensitivity increased, so did magnet weight and geophone size. Some geophones became so heavy that field placement was physically demanding. The large size and weight of early geophones was largely unavoidable. Materials at the time had very low coercive...
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Journal Article
Published: 05 May 2022
The Canadian Mineralogist (2022) 60 (3): 543–554.
... in the Ouachita Mountains of Arkansas, including the Wilson Springs complex located in Garland County and the Magnet Cove complex in Hot Spring County. The Wilson Springs vanadium deposits were the first to be mined in the United States solely for vanadium. Four separate orebodies were discovered at Wilson...
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Journal Article
Published: 01 January 2012
American Mineralogist (2012) 97 (1): 128–133.
... as magneto receptors to orient themselves in the Earth’s magnetic field ( Gould 2008 ). Magnetite is also widely used commercially as a pigment for paints and in construction as an aggregate for high-density concrete, as well as in many other forms for diverse purposes (e.g., Hiergeist et al. 1999 ; Mayo...
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Journal Article
Published: 01 January 2006
Reviews in Mineralogy and Geochemistry (2006) 64 (1): 179–221.
... spectroscopy, electronic spins are excited by placing the sample in a magnetic field. Unpaired electrons will resonate at specific magnetic field strengths (termed hyperfine splitting-constants) between a state in which their spin is aligned parallel and antiparallel to the external magnetic field. The energy...
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Journal Article
Published: 07 February 2018
Seismological Research Letters (2018) 89 (2A): 345–355.
..., Veracruz, Mexico, inferred from gravity and magnetic data , J. Volcanol. Geoth. Res. 324 , 15 – 17 . Espíndola‐Castro V. H. 2009 . Modelos de velocidad cortical en México, utilizando funciones de receptor en las estaciones de la red nacional de banda ancha del SSN, México , Ph.D. Thesis...
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Journal Article
Published: 03 January 2003
Reviews in Mineralogy and Geochemistry (2003) 54 (1): 31–56.
... for magnetic field detection ( Lowenstam and Weiner 1989 ). There are several central techniques that are crucial to modern DNA biotechnology. These techniques are often used in combination as a strategy for extracting gene organizational information, for identifying specific genes that code for proteins...
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Journal Article
Journal: The Leading Edge
Published: 01 July 2017
The Leading Edge (2017) 36 (7): 598–603.
... flextensional shell. Figure 4 Conventional acoustic source (1350 in 3 ) compared with array of three AquaVib sources. The AquaVib vibrators have a “flextensional” design where an external shell is driven by a magnetostrictive driver. The driver is driven by a magnetic field and essentially has...
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Journal Article
Journal: Geophysics
Published: 23 August 2022
Geophysics (2022) 87 (5): E347–E358.
... magnetic and electric fields, stating that ∇ × e = − ∂ b ∂ t (1) and ∇ × h = j + j s + ∂ d ∂ t , (2) where e represents an electric field, h is the magnetic field, b is the magnetic induction vector, d is the dielectric...
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Journal Article
Published: 03 January 2003
Reviews in Mineralogy and Geochemistry (2003) 54 (1): 217–247.
... geomagnetic field lines while it swims (magnetotaxis). Cells are neither attracted nor pulled toward either geomagnetic pole. Dead cells, like living cells, align along geomagnetic field lines but do not move along them. Living cells behave like very small, self-propelled, magnetic compass needles ( Frankel...
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Journal Article
Published: 01 April 2005
Scottish Journal of Geology (2005) 41 (1): 69–79.
... saprolite development, such as is typical of much of tropical India or Africa ( Lloyd 1999 ). Approaches to the science of locating successful water supply boreholes in hard rock aquifers typically focus on the identification of fracture zones or lineaments, by means of field surveys and study of maps...
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Journal Article
Published: 14 September 2023
Quarterly Journal of Engineering Geology and Hydrogeology (2023) 56 (4): qjegh2023-049.
... fields). Furthermore, the fieldwork enabled the measurement of the width and depth of karst features, describing their geometry and their cross-cutting relationships at the surface outcrops. Thus, the field measurements required a compass clinometer, surveying tape and a GPS receptor. Geological maps...
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Journal Article
Published: 25 October 2017
Quarterly Journal of Engineering Geology and Hydrogeology (2017) 50 (4): 379–392.
... indicate the strike direction of the rocks and two major anomalies proved to be ‘bell-pits’’. (It should be noted that Gunn et al . (2008) also used field magnetic gradiometer surveys to corroborate the presence of shafts located using aerial infrared.) Table 1. Ground engineering applications...
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Journal Article
Published: 01 December 2017
Clays and Clay Minerals (2017) 65 (6): 378–386.
...Cheng Chen; Xiandong Liu; Yingchun Zhang; Chi Zhang; Xiancai Lu Abstract— In order to understand the microscopic properties of alkylammonium-intercalated vermiculites, molecular dynamics simulations employing the clayff-CVFF force field were performed to obtain the interlayer structures...
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