Three-dimensional seismic imaging of the Costa Rica accretionary prism: Structural diversity in a small volume of the lower slope

1992 ◽  
Vol 97 (B4) ◽  
pp. 4439 ◽  
Author(s):  
Thomas H. Shipley ◽  
Kirk D. McIntosh ◽  
Eli A. Silver ◽  
Paul L. Stoffa
Keyword(s):  
Costa Rica ◽  
Small Volume ◽  
Seismic Imaging ◽  
Three Dimensional ◽  
Structural Diversity ◽  
Accretionary Prism ◽  
Lower Slope

Three-dimensional seismic imaging of the Costa Rica Accretionary Prism: Field program and migration examples

1991 ◽  
Vol 96 (B13) ◽  
pp. 21693-21712 ◽  
Author(s):  
Paul L. Stoffa ◽  
Thomas H. Shipley ◽  
Walter Kessinger ◽  
Donald F. Dean ◽  
Rigmor Elde ◽  
...  
Keyword(s):  
Costa Rica ◽  
Seismic Imaging ◽  
Three Dimensional ◽  
Accretionary Prism ◽  
And Migration

scholarly journals Three-Dimensional Structures of Carbohydrates and Where to Find Them

2020 ◽  
Vol 21 (20) ◽  
pp. 7702 ◽  
Author(s):  
Sofya I. Scherbinina ◽  
Philip V. Toukach
Keyword(s):  
Experimental Data ◽  
Molecular Modeling ◽  
Computational Methods ◽  
Three Dimensional ◽  
Structural Diversity ◽  
Structural Data ◽  
Structural Features ◽  
Data Validation ◽  
Data Generation ◽  
Efficient Treatment

Analysis and systematization of accumulated data on carbohydrate structural diversity is a subject of great interest for structural glycobiology. Despite being a challenging task, development of computational methods for efficient treatment and management of spatial (3D) structural features of carbohydrates breaks new ground in modern glycoscience. This review is dedicated to approaches of chemo- and glyco-informatics towards 3D structural data generation, deposition and processing in regard to carbohydrates and their derivatives. Databases, molecular modeling and experimental data validation services, and structure visualization facilities developed for last five years are reviewed.

Seafloor structural observations, Costa Rica Accretionary Prism

1996 ◽  
Vol 23 (8) ◽  
pp. 883-886 ◽  
Author(s):  
Brian G. McAdoo ◽  
Daniel L. Orange ◽  
Eli A. Silver ◽  
Kirk McIntosh ◽  
Lon Abbott ◽  
...  
Keyword(s):  
Costa Rica ◽  
Accretionary Prism

scholarly journals Three-dimensional seismic imaging of the Rye Patch geothermal reservoir

1999 ◽  
Author(s):  
M. Feighner ◽  
R. Gritto ◽  
T.M. Daley ◽  
H. Keers ◽  
E.L. Majer
Keyword(s):  
Seismic Imaging ◽  
Three Dimensional ◽  
Geothermal Reservoir

scholarly journals MEMS-Based Integrated Triaxial Electrochemical Seismometer

Micromachines ◽  
2021 ◽  
Vol 12 (10) ◽  
pp. 1156
Author(s):  
Wenjie Qi ◽  
Bowen Liu ◽  
Tian Liang ◽  
Jian Chen ◽  
Deyong Chen ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Ground Motion ◽  
Small Volume ◽  
Three Dimensional ◽  
Experimental Results ◽  
Good Prospect ◽  
High Symmetry ◽  
Noise Levels ◽  
Sensitivity Curves ◽  
Simulation Results

This paper presents a micro-electromechanical systems (MEMS)-based integrated triaxial electrochemical seismometer, which can detect three-dimensional vibration. By integrating three axes, the integrated triaxial electrochemical seismometer is characterized by small volume and high symmetry. The numerical simulation results inferred that the integrated triaxial electrochemical seismometer had excellent independence among three axes. Based on the experimental results, the integrated triaxial electrochemical seismometer had the advantage of small axial crosstalk and could detect vibration in arbitrary directions. Furthermore, compared with the uniaxial electrochemical seismometer, the integrated triaxial electrochemical seismometer had similar sensitivity curves ranging from 0.01 to 100 Hz. In terms of random ground motion response, high consistencies between the developed integrated triaxial electrochemical seismometer and the uniaxial electrochemical seismometer could be easily observed, which indicated that the developed integrated triaxial electrochemical seismometer produced comparable noise levels to those of the uniaxial electrochemical seismometer. These results validated the performance of the integrated triaxial electrochemical seismometer, which has a good prospect in the field of deep geophysical exploration and submarine seismic monitoring.

scholarly journals Topography and Three-Dimensional Structure Can Estimate Tree Diversity along a Tropical Elevational Gradient in Costa Rica

2018 ◽  
Vol 10 (4) ◽  
pp. 629 ◽  
Author(s):  
Chelsea Robinson ◽  
Sassan Saatchi ◽  
David Clark ◽  
Johanna Hurtado Astaiza ◽  
Anna Hubel ◽  
...  
Keyword(s):  
Costa Rica ◽  
Three Dimensional ◽  
Elevational Gradient ◽  
Tree Diversity ◽  
Dimensional Structure ◽  
Three Dimensional Structure

scholarly journals A comparative study between currently used methods and Small Volume-Cone Beam Tomography for surgical placement of mini implants

2014 ◽  
Vol 85 (3) ◽  
pp. 446-453 ◽  
Author(s):  
Melissa Landin ◽  
Aniket Jadhav ◽  
Sumit Yadav ◽  
Aditya Tadinada
Keyword(s):  
Small Volume ◽  
Preoperative Evaluation ◽  
Three Dimensional ◽  
Panoramic Radiograph ◽  
Imaging Modalities ◽  
Cone Beam ◽  
Root Structure ◽  
Mini Implants ◽  
Area Of Interest ◽  
Human Skulls

ABSTRACT Objective:  To compare the outcome of mini implant placement by four different methods: blind placement, a single periapical radiograph (PA), a single panoramic radiograph, and a small-volume cone-beam computed tomography (SV-CBCT). Our hypothesis was that SV-CBCT, with its high resolution, low radiation dose, and three-dimensional depiction of area of interest would yield superior diagnostic information in assessing the potential anchorage site compared to currently used methods that often result in undesired root perforations. Materials and Methods:  Potential mini implant sites of 20 dentate or partially dentate human skulls were imaged using three different imaging modalities: PA, panoramic radiograph, and SV-CBCT. Mini implants were placed in 10 maxillary and 10 mandibular randomized sites blindly and using each of the three imaging modalities. Large-volume CBCT scans done postoperatively were used to detect root perforation. Two oral radiologists analyzed the images for perforation of root structures at each site. Results:  There was significantly (P < .05) less root perforation with SV-CBCT when compared with other imaging modalities. Fifty-five percent of mini implants placed blindly, 60% of mini implants placed using PA, and 50% of mini implants placed using a panoramic radiograph perforated a root structure, whereas only 5% of mini implants placed using SV-CBCT perforated a root structure. Conclusions:  Preoperative evaluation of potential mini implant insertion sites using SV-CBCT aids in predictable placement and results in the least amount of root perforation.

Fluid expulsion from the Cascadia accretionary prism: evidence from porosity distribution, direct measurements, and GLORIA imagery

1991 ◽  
Vol 335 (1638) ◽  
pp. 331-340 ◽  
Keyword(s):  
Accretionary Prism ◽  
Pore Waters ◽  
Thrust Faulting ◽  
Porosity Reduction ◽  
Direct Measurements ◽  
Water Volumes ◽  
Lower Slope ◽  
Porosity Changes ◽  
Carbonate Deposits ◽  
Total Fluid

Fluid expulsion from the Cascadia accretionary prism off Oregon results from porosity reduction by compaction, and by cementation as methane-rich pore waters precipitate diagenetic carbonate deposits near the sediment-water interface. Porosity changes suggest that dewatering begins 5-6 km west of the base of the slope, in a proto-deformation zone, GLORIA imagery of surficial carbonate deposits confirms that fluid is actively expelled from this zone; there is no such evidence further west in Cascadia Basin. Within the uncertainties of the data, porosities do not decrease landward beneath the prism. This pattern is consistent with imbricate thrust faulting on the slope which provides the vertical load to induce compactive dewatering, and may physically import as much as 50% of the total fluid volume in the section. A simple vertical compaction model suggests that significant pore water volumes have been expelled from the lower slope, but at flux rates (10 -11 -10 -12 m 3 m -2 s -1 ) which are orders of magnitude less than those measured at individual vent sites (10 -6 m 3 m -2 s -1 ). Faulting clearly controls some fluid expulsion, but GLORIA data suggest that repeated local discharge, cementation, and abandonment lead to dispersed accumulations of diagenetic carbonate.

scholarly journals Structural Aspects of Phenylalanylation and Quality Control in Three Major Forms of Phenylalanyl-tRNA Synthetase

2010 ◽  
Vol 2010 ◽  
pp. 1-7 ◽  
Author(s):  
Liron Klipcan ◽  
Igal Finarov ◽  
Nina Moor ◽  
Mark G. Safro
Keyword(s):  
Quaternary Structure ◽  
Thermus Thermophilus ◽  
Three Dimensional ◽  
Structural Diversity ◽  
Structural Data ◽  
Trna Synthetase ◽  
Transfer Rnas ◽  
Trna Synthetases ◽  
Editing Activity ◽  
Structural Aspects

Aminoacyl-tRNA synthetases (aaRSs) are a canonical set of enzymes that specifically attach corresponding amino acids to their cognate transfer RNAs in the cytoplasm, mitochondria, and nucleus. The aaRSs display great differences in primary sequence, subunit size, and quaternary structure. Existence of three types of phenylalanyl-tRNA synthetase (PheRS)—bacterial (αβ)2, eukaryotic/archaeal cytosolic (αβ)2, and mitochondrial α—is a prominent example of structural diversity within the aaRSs family. Although archaeal/eukaryotic and bacterial PheRSs share common topology of the core domains and the B3/B4 interface, where editing activity of heterotetrameric PheRSs is localized, the detailed investigation of the three-dimensional structures from three kingdoms revealed significant variations in the local design of their synthetic and editing sites. Moreover, as might be expected from structural data eubacterial, Thermus thermophilus and human cytoplasmic PheRSs acquire different patterns of tRNAPhe anticodon recognition.

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