The Characteristics and Effects of Anomalous Body on Magnetotelluric Tripper Responses

2018 ◽  
Vol 08 (03) ◽  
pp. 578-587
Author(s):  
雄 李
Keyword(s):  
2005 ◽  
Vol 35 (10) ◽  
pp. 1523-1532 ◽  
Author(s):  
MAURICIO SIERRA ◽  
DAWN BAKER ◽  
NICHOLAS MEDFORD ◽  
ANTHONY S. DAVID

Background. Depersonalization has long been considered a syndrome but there is poor agreement on its constituent symptoms.Method. In order to establish whether different symptoms of depersonalization represent the expression of a single or several underlying dimensions, an exploratory factor analysis on the Cambridge Depersonalization Scale (CDS) was carried out on 138 consecutive patients diagnosed with depersonalization disorder.Results. Four well determined factors accounting for 73·3% of the variance were extracted. These were labelled ‘Anomalous Body Experience’; ‘Emotional Numbing’; ‘Anomalous Subjective Recall’ and ‘Alienation from Surroundings’.Conclusions. Symptoms of depersonalization belong to distinct but related psychopathological domains.


2020 ◽  
Vol 94 (1) ◽  
pp. 10-26
Author(s):  
Jiwen TENG ◽  
Songying LI ◽  
Mingkui JIA ◽  
Jie LIAN ◽  
Honglei LIU ◽  
...  

PLoS ONE ◽  
2014 ◽  
Vol 9 (2) ◽  
pp. e89823 ◽  
Author(s):  
Matthias Michal ◽  
Bettina Reuchlein ◽  
Julia Adler ◽  
Iris Reiner ◽  
Manfred E. Beutel ◽  
...  

1882 ◽  
Vol 173 ◽  
pp. 1125-1168 ◽  

The researches described in the following pages, which were commenced in 1874, were suggested by observations made by Professor Clerk Maxwell and M. Fizeau. The former (‘Theory of Heat,’ p. 8), in discussing the effects of heat upon matter, writes: “The body generally expands (the only exception among solid bodies, as far as I am aware, is iodide of silver, which has been found to contract as the temperature rises).” The latter (‘Nouvelles observations relatives à l’Iodure d’Argent’), remarks: “Ce corps, en effet, paraît offrir l’exemple d’une inversion complète des phénomènes ordinaires de la dilatation par la chaleur, car son volume diminue trèscertainement pendant l’echauffement, et augmente pendant le refroidissement.” It was thought that results of interest might be obtained as to the molecular constitution of this anomalous body, by examining the effects of heat upon it at higher temperatures than those employed by Fizeau (which in no case exceeded 100° C.); also by forming compounds, or alloys, with it, and other bodies, and determining the effect of its presence upon the coefficients of expansion and the physical structure of such bodies.


2011 ◽  
Vol 18 (3) ◽  
pp. 228-236 ◽  
Author(s):  
Emily Lenton ◽  
Suzanne Fraser ◽  
David Moore ◽  
Carla Treloar
Keyword(s):  

Geophysics ◽  
1940 ◽  
Vol 5 (1) ◽  
pp. 22-30 ◽  
Author(s):  
J. W. Fisher

Based upon the fact that gravitational and magnetic anomalies are functions of the solid angle subtended at the point of measurement by the contours of the anomalous body, an electro‐magnetic model is described which permits direct measurement of the desired quantities in terms of mutual inductance. A model of the subsurface “structure” is made in the form of a coil in which the vertical spacing of the turns is kept constant and the shape of the helix conforms to the contours of the structure. A small search coil is then located at the point corresponding to that at which a gravimetric or magnetometric observation is desired. The mutual inductance between the search coil and the main coil is then measured and may be expressed in terms of the magnetic or gravity anomaly arising from the simulated structure. For magnetic anomalies the search coil is made as compact as possible whereas in the case of gravity anomalies the search coil is in the form of a long solenoid of small diameter, evenly wound along its length, in order to affect the integration necessary to measure the magnetic potential analogous to the desired gravitational quantity.


Geophysics ◽  
2017 ◽  
Vol 82 (3) ◽  
pp. EN51-EN66 ◽  
Author(s):  
Binbin Mi ◽  
Jianghai Xia ◽  
Chao Shen ◽  
Limin Wang ◽  
Yue Hu ◽  
...  

The multichannel analysis of surface wave (MASW) method has been effectively and widely used to determine near-surface shear-wave velocity. Horizontal resolution of the MASW method represents the minimum horizontal length of recognizable geologic anomalous bodies on a pseudo-2D S-wave velocity [Formula: see text] section. Accurately assessing the achievable lateral resolution is one of the main issues in lateral variation reconstruction using the MASW method. It is difficult to quantitatively estimate the horizontal resolution of the MASW method because of the many influencing factors, such as parameters of the observation system, the depth of an anomalous body, and the velocity contrast between the anomalous body and the surrounding rocks. We first analyzed the horizontal resolution of the MASW method based on numerical simulation experiments. According to different influencing factors of the horizontal resolution, we established different laterally heterogeneous models and observation systems and then simulated several synthetic multichannel records with a finite-difference method along a linear survey line using the roll-along acquisition mode. After the extraction of dispersion curves of Rayleigh waves and inversion for S-wave velocity profiles for each synthetic shot gather, a pseudo-2D S-wave velocity section can be generated by aligning the 1D S-wave velocity models. Ultimately, we evaluated the horizontal resolution capability of the MASW method on pseudo-2D [Formula: see text] maps. Our numerical investigation results and field data analysis indicate that [Formula: see text] values on the maps are not the same as the true [Formula: see text] values for structures whose lateral dimension is shorter than a receiver spread length and that anomalous bodies, which are larger and have high velocity contrast, are easier to distinguish on [Formula: see text] maps with a shorter receiver spread length. The horizontal resolution decreases with the increasing depth and is approximately one-half of the shortest Rayleigh wavelength that can penetrate to the depth.


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