Results 171 to 180 of about 10,801,644 (213)

Inelastic Tangential Stiffness for 2‐D Frames

Journal of Structural Engineering, 1983
A general instantaneous or tangential stiffness matrix for a plane frame member is presented. Expressions in the form of integral equations are developed for members having axial forces and arbitrary material properties, distributed loads and moment-axial force-curvature relations.
Tai‐Yan Kam, Edwin C. Rossow, Ross B. Corotis   +2 more
openaire   +1 more source

Deep Learning for Automated Occlusion Edge Detection in RGB-D Frames

Journal of Signal Processing Systems, 2016
Occlusion edges correspond to range discontinuity in a scene from the point of view of the observer. Detection of occlusion edges is an important prerequisite for many machine vision and mobile robotic tasks. Although they can be extracted from range data, extracting them from images and videos would be extremely beneficial.
Soumik Sarkar, Vivek Venugopalan, Kishore K. Reddy, Julian Ryde, Navdeep Jaitly, Michael Giering   +5 more
openaire   +1 more source

3-D Frame Vibrations by Consistent Mass Matrix

Journal of the Structural Division, 1973
In the present work, the consistent mass matrix of a component beam of a three-dimensional frame is presented. The frequencies of the example shown are calculated with the consistent mass matrix and compared with the results obtained with the two previous methods.
Fernando Venancio-Filho, Fernando Iguti
openaire   +1 more source

RELIABILITY EVALUATIONS OF 3-D FRAME SUBJECTED TO NON-STATIONARY EARTHQUAKE

Journal of Sound and Vibration, 2003
The objective of the present work is to evaluate the integrated reliability of multistoried space frame subjected to random earthquake. The stochastic ground motion is described by fully non-stationary sigma-oscillatory model. The stochastic dynamic analysis is performed in the frequency domain to obtain the power spectral density function of random ...
Chaudhuri, A, Chakraborty, S
openaire   +1 more source

Relative Effectiveness of D-Frame Dip Nets, Quatrefoil Light Traps, and Towed Ichthyoplankton Nets for Larval Muskellunge

North American Journal of Fisheries Management, 2021
Abstract Muskellunge Esox masquinongy are large, predatory game fish whose association with shallow, complex habitats is well documented, particularly during early life stages. Despite this association, relatively little guidance exists regarding effective sampling of Muskellunge larvae and previous efforts to sample larval Muskellunge ...
Jared E. Krebs, Ethan J. Brandt, Daniel J. Dembkowski, Daniel A. Isermann   +3 more
openaire   +1 more source

Fusion of angiography and intravascular ultrasound in vivo: establishing the absolute 3-D frame orientation

IEEE Transactions on Biomedical Engineering, 1999
Data fusion of biplane angiography and intravascular ultrasound (IVUS) facilitates geometrically correct reconstruction of coronary vessels. The locations of IVUS frames along the catheter pullback trajectory can be identified, however the IVUS image orientations remain ambiguous. An automated approach to determination of correct IVUS image orientation
Andreas Wahle, Guido P. M. Prause, Clemens von Birgelen, Raimund Erbel, Milan Sonka   +4 more
openaire   +2 more sources

Dynamic Analysis of a 3-D Frame-Membrane Lunar Structure Subjected to Impact

Earth & Space 2008, 2008
A three-dimensional (3-D) frame-membrane structure covered with regolith shielding and pressurized internally has been proposed as a possible lunar habitat. This paper presents results from the dynamic impact analysis of the structure using nonlinear (large deformation) finite element technique.
Ramesh B. Malla, Damayanti Chaudhuri
openaire   +1 more source

Coarse to fine global RGB-D frames registration for precise indoor 3D model reconstruction

2017 International Conference on Localization and GNSS (ICL-GNSS), 2017
The conventional approach to register two or more RGB-D frames produced from low cost depth sensors, such as KINECT and Structure Sensor, applies SIFT matched points between color images along with corresponding depth from the depth images. This is known as RGB-D SLAM.
Walid Darwish, Wenbin Li 0010, Shengjun Tang, Wu Chen 0001   +3 more
openaire   +1 more source

d-Frames as algebraic duals of bitopological spaces

2017
Achim Jung and Drew Moshier developed a Stone-type duality theory for bitopological spaces, amongst others, as a practical tool for solving a particular problem in the theory of stably compact spaces. By doing so they discovered that the duality of bitopological spaces and their algebraic counterparts, called d-frames, covers several of the known ...
openaire   +2 more sources

Reliability Analysis of Nonlinear 3-D Frames with PR Connections by SFEM

1994
An efficient stochastic finite element-based procedure is proposed for the reliability analysis of three-dimensional frames with partially restrained (PR) connections. The method is based on the Advanced First-Order Second-Moment reliability analysis procedure. The Richard model is used to describe the flexible behavior of connections.
Liwei Gao, Achintya Haldar
openaire   +1 more source