GSLXY version 1.0; a prototype program to draw cross sections and plot plan views from drill hole data on an X, Y, coordinate system using an IBM PC (or compatible) microcomputer, digitizer and plotter

1988 ◽  
Author(s):  
Gary I. Selner ◽  
Richard B. Taylor
Keyword(s):  
Coordinate System ◽  
Cross Sections ◽  
Drill Hole ◽  
Ibm Pc

Arthroscopic Coracoclavicular Ligament Reconstruction Using a Synthetic Polycaprolactone-Based Polyurethane Urea Tendon Graft: A Report of 5 Cases

2018 ◽  
Vol 25 (3) ◽  
pp. 224-229 ◽  
Author(s):  
Juha O. Ranne ◽  
Terho U. Kainonen ◽  
Lasse L. Lempainen ◽  
Jussi A. Kosola ◽  
Sami A. Kajander ◽  
...  
Keyword(s):  
Cross Sections ◽  
Ligament Reconstruction ◽  
Constant Score ◽  
Practical Method ◽  
Drill Hole ◽  
Tendon Graft ◽  
Simple Shoulder Test ◽  
Coracoclavicular Ligament Reconstruction ◽  
The Mean

Background. Several techniques have been introduced to treat acromioclavicular (AC) separation using the semitendinosus tendon as a graft for coracoclavicular (CC) ligament reconstruction. However, the tendon may have been used previously or the patient may not want it harvested. Hence, synthetic tendon transfers have become increasingly popular. Methods. Five patients with chronic AC separations were treated. A synthetic polyurethane urea tendon graft (Artelon Tissue Reinforcement [ATR]) was chosen for its ability to partially transform into connective tissue. The patient follow-up period lasted 45 to 60 months. Results. The mean preoperative Constant Score increased from 64.8 to 100 postoperatively. The mean preoperative Simple Shoulder Test increased from 7.2 to 12 postoperatively. The mean postoperative increase of the CC distance was 1.5 mm. The mean expansion of the clavicular drill hole from the original was 2.1 mm. According to the postoperative magnetic resonance imaging, the grafts had healed well and the cross-sections of the grafts were up to 10.5 mm between the coracoid and the clavicle. Discussion. The synthetic ATR tendon strip was a practical method for reconstructing a torn CC ligament complex. The ATR graft appears promising for future CC ligament reconstructions.

Origin of the Piché Structural Complex and implications for the early evolution of the Archean crustal-scale Cadillac – Larder Lake Fault Zone, Canada

2018 ◽  
Vol 55 (8) ◽  
pp. 905-922 ◽  
Author(s):  
Pierre Bedeaux ◽  
Lucie Mathieu ◽  
Pierre Pilote ◽  
Silvain Rafini ◽  
Réal Daigneault
Keyword(s):  
Fault Zone ◽  
Cross Sections ◽  
Volcanic Rocks ◽  
Sedimentary Basins ◽  
Drill Hole ◽  
Gold Deposits ◽  
Ductile Deformation ◽  
Chemical Compositions ◽  
Abitibi Subprovince ◽  
Felsic Volcanic

The Piché Structural Complex (PSC) extends over 150 km within the Cadillac – Larder Lake Fault Zone (CLLFZ), a gold-endowed, east-trending, and high-strain corridor located along the southern edge of the Archean Abitibi Subprovince. The PSC consists of discontinuous units of volcanic rocks (<1 km thick) that host multiple gold deposits. It is spatially associated with molasse-type Timiskaming sedimentary basins. This study describes and interprets the origin of structures and lithologies within the poorly understood PSC to unravel the tectonic evolution of the CLLFZ. Field mapping, chemical analyses, as well as interpretations of cross-sections from drill-hole data, were used to interpret the geometry and structure of the PSC. The PSC is subdivided into six homogeneous fault-bounded segments or slivers. These slivers consist mostly of ultramafic to intermediate volcanic rocks and include some felsic volcanic flows and intrusions. Volcanic facies, chemical compositions, and isotopic ages confirm that these slivers are derived from the early volcanic units of the southern Abitibi greenstone belt, which are located north of the CLLFZ. Cross-cutting relationships between volcanic rocks of the PSC and the Timiskaming-aged intrusions suggest that the slivers were inserted into the CLLFZ during the early stages of the accretion-related deformation (<2686 Ma) and prior to Timiskaming sedimentation and ductile deformation (>2676 Ma). The abundant ultramafic rocks located within the CLLFZ may have focused strain, thereby facilitating the nucleation of the fault as well as the displacements along this crustal-scale structure.

scholarly journals The geological framework for Hvideklint, south-east Denmark, using glaciodynamic sequence stratigraphy

2021 ◽  
Vol 47 ◽  
Author(s):  
Stig A. Schack Pedersen ◽  
Peter Gravesen
Keyword(s):  
Sea Level ◽  
Sequence Stratigraphy ◽  
Cross Section ◽  
Cross Sections ◽  
Drill Hole ◽  
Balanced Cross Section ◽  
Geological Cross Section ◽  
Thrust Sheets ◽  
Practical Model ◽  
Complex Architecture

Glaciodynamic sequence stratigraphy provides a practical model for grouping and classifying complex geological data to aid interpretation of past climatic and environmental development in Quaternary successions. The principles of glaciodynamic sequence stratigraphy are applied here to summarise the complex glacial geological framework of Hvideklint on the island of Møn, south-east Denmark. The framework of the superimposed deformed Hvideklint is presented in a reconstructed geological cross-section of Hvideklint. For the construction of the architecture of the glaciotectonic complex, the interpretation of structures below sea level was based on a detailed new survey of the cliff section combined with construction of successive approximation balanced cross-sections. The new description is supported by drill hole data from the Jupiter database. Where chalk is not glaciotectonically deformed, the constructed depth to the top-chalk-surface is generally located about 30 m below sea level. In Hvideklint, thrust sheets with chalk are exposed 20 m above sea level, and the balanced cross-section constructions indicate that the décollement surface for a Hvideklint glaciotectonic complex is located about 80 m below sea level. Between the décollement level and the top of the complex, two or more thrust-fault flat-levels and connecting ramps add to the complex architecture of Hvideklint.

scholarly journals Electron-Impact Dissociation of Vibrationally-Excited Molecular Hydrogen into Neutral Fragments

Atoms ◽  
2019 ◽  
Vol 7 (3) ◽  
pp. 75 ◽  
Author(s):  
Liam Scarlett ◽  
Jeremy Savage ◽  
Dmitry Fursa ◽  
Mark Zammit ◽  
Igor Bray
Keyword(s):  
Coordinate System ◽  
Electron Impact ◽  
Cross Sections ◽  
Vibrational Level ◽  
Molecular Hydrogen ◽  
Vibrationally Excited ◽  
Close Coupling ◽  
Spherical Coordinate ◽  
Electron Impact Dissociation ◽  
D 72

We present convergent close-coupling (CCC) calculations of electron-impact dissociation of vibrationally-excited molecular hydrogen into neutral fragments. This work follows from our previous results for dissociation of molecular hydrogen in the ground vibrational level [Scarlett et al., Eur. Phys. J. D 72, 34 (2018)], which were obtained from calculations performed in a spherical coordinate system. The present calculations, performed utilizing a spheroidal formulation of the molecular CCC method, reproduce the previous dissociation cross sections for the ground vibrational level, while allowing the extension to scattering on excited levels.

Path Planning for Spatial Robots With Multiple Spherical and Cylindrical Obstacles Inside the Workspace

1992 ◽  
Author(s):  
Menq-Dar Shieh ◽  
Carl Crane ◽  
Joseph Duffy
Keyword(s):  
Path Planning ◽  
Coordinate System ◽  
Inclination Angle ◽  
Cross Sections ◽  
Computation Time ◽  
End Effector

Abstract Algorithms which can rapidly generate collision free paths for the end effector tip of a spatial 4R manipulator with multiple spherical or cylindrical obstacles inside the workspace have been successfully developed. The algorithms are based on the geometry of the manipulator workspace. The problem of guiding the spatial 4R manipulator while avoiding the obstacles is reduced to that of moving a point and at the same time avoiding rectangles in a Inclination Angle Coordinate System (IACS). The complexity of the path planning is reduced from the 3D case to the 2D case in the IACS, and the speed of generating the collision free paths is improved significantly without losing the characteristics of 3D path planning. The algorithms have been successfully implemented in a Silicon Graphics 4D-70GT workstation to verify the results. The computation time for generating 10 collision free paths with 7 spherical obstacles or 10 cylindrical obstacles inside the workspace is 1 or 2 seconds. Also, the algorithms, which are designed as interactive programs, are modified to guide a spatial T3586 robot around pipes with circular cross sections.

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