BMM for Long-Term Bridge Deterioration by Dynamic Structural Analysis System

2009 ◽  
Author(s):  
H. Alaylioglu ◽  
A. Alaylioglu
Keyword(s):  
Structural Analysis ◽  
Analysis System ◽  
Dynamic Structural Analysis

Dynamic structural analysis of connecting rod through adaptive mesh refinement for different materials

2018 ◽  
Vol 50 (04) ◽  
pp. 561-570
Author(s):  
I. A. QAZI ◽  
A. F. ABBASI ◽  
M. S. JAMALI ◽  
INTIZAR INTIZAR ◽  
A. TUNIO ◽  
...  
Keyword(s):  
Structural Analysis ◽  
Adaptive Mesh Refinement ◽  
Mesh Refinement ◽  
Adaptive Mesh ◽  
Connecting Rod ◽  
Dynamic Structural Analysis

A Minicomputer-Based Emission Spectrographic Analysis System Dependent on Scanning Microphotometry

1979 ◽  
Vol 33 (6) ◽  
pp. 604-612 ◽  
Author(s):  
Catharine P. Thomas
Keyword(s):  
Preliminary Data ◽  
Magnetic Tape ◽  
Data Bank ◽  
Spectrographic Analysis ◽  
Geologic Materials ◽  
Analytical Curve ◽  
Priority Scheme ◽  
Analysis System ◽  
Survey Analyses

A minicomputer-based, semiquantitative, emission spectrographic system was designed to perform survey analyses (64 elements per sample), on a wide variety of geologic materials rapidly (9 s per determination). The system can analyze as many as 40 000 samples per year, while maintaining long-term consistency of results, and can provide archival storage capability (photoplate, microfiche, data bank). The minicomputer's partitioned memory allows simultaneous execution of programs to acquire 92 000 sequential, digitized, transmittance-readings per spectrum from a precision scanning microphotometer in 70 s, and to reduce these data to the peak and background transmittances, the location, and a profile code of as many as 500 analytical lines. The plate emulsion is calibrated in 10 equal segments between 2300 and 4700 Å. Intensities and preliminary concentrations based on prestored analytical curve coefficients are calculated for each line. Corrections for spectral interferences are made, and final results are selected according to a predetermined priority scheme. A report form for every 10 samples is printed within 5 min after a plate is recorded. All the preliminary data are stored on magnetic tape for production of microfiche within 24 h. Spectra on a second plate can be scanned while analysis of the first plate is being performed.

scholarly journals The study of the impacts of ‘Running’ on the contact area of soles and maximal strength among elite middle distance runners

2017 ◽  
Vol 12 (1) ◽  
pp. 23-31 ◽  
Author(s):  
Ahmet Uzun ◽  
Latif Aydos ◽  
Metin Kaya ◽  
Mehmet Fatih Yuksel ◽  
Hacı Ahmet Pekel
Keyword(s):  
Contact Area ◽  
Middle Part ◽  
Control Group ◽  
Maximal Strength ◽  
Distance Runners ◽  
Male Athletes ◽  
Maximal Force ◽  
Analysis System ◽  
The Right

It is possible that running training for many years in athletics affects athletes' running patterns and sole structure. The main aim of this study is to examine the effect of maximal force applied to the floor area and contact area of the athletes with related to mid-distance training for athletics. 18 male athletes who represent Turkey on the International area and another 25 male volunteers who form the control group from the participants of the study. The sole pressure measurement of the participants was performed through the use of EMED-SF (Novel H, Munich, Germany) plantar pressure analysis system (pedobarographic analysis).  In the study, significant differences were found in heel medial, heel lateral, foot middle, 2nd, 3rd and 4th metatars heads and left foot 3rd, 4th, 5th finger in the contact area values of the right and left foot averages. Besides, significant differences were found in heel medial, middle part of feet, 2nd and 3rd metatars heads and 2nd, 3rd, 4th and 5th fingers in maximal force values. Athletes have pressed on sole of the feet more as a result of long-term training and as a consequence this pressure caused a change of the soles contact area and maximal strength. Also it can be said that they have used forefront part of soles more actively during running and walking.   Keywords: runner foot sole, contact area, middle distance, pedobarographic.

scholarly journals Dynamics in Fluids. Dynamic Structural Analysis of Supercritical Water.

2000 ◽  
Vol 10 (4) ◽  
pp. 283-289 ◽  
Author(s):  
Nobuyuki MATUBAYASI ◽  
Naoko NAKAO ◽  
Masaru NAKAHARA
Keyword(s):  
Structural Analysis ◽  
Supercritical Water ◽  
Dynamic Structural Analysis

Performance-Based Seismic Design

2012 ◽  
pp. 23-50 ◽  
Author(s):  
Oscar Möller ◽  
Marcelo Rubinstein ◽  
Fabián Savino ◽  
Ricardo O. Foschi
Keyword(s):  
Neural Networks ◽  
Structural Analysis ◽  
Earthquake Engineering ◽  
Optimization Algorithm ◽  
Limit State ◽  
Design Parameters ◽  
Total Cost ◽  
Operational Life ◽  
Performance Based Seismic Design ◽  
Dynamic Structural Analysis

An approach is presented to structural optimization for performance-based design in earthquake engineering. The objective is the minimization of the total cost, including repairing damage produced by future earthquakes, and satisfying minimum target reliabilities in three performance levels (operational, life safety, and collapse). The different aspects of the method are considered: a nonlinear dynamic structural analysis to obtain responses for a set of earthquake records, representing these responses with neural networks, formulating limit-state functions in terms of deformations and damage, calculating achieved reliabilities to verify constraint violations, and the development of a gradient-free optimization algorithm. Two examples illustrate the methodology: 1) a reinforced concrete portal for which the design parameters are member dimensions and steel reinforcement ratios, and 2) optimization of the mass at the cap of a pile, to meet target reliabilities for two levels of cap displacement. The objective of this latter example is to illustrate model effects on optimization, using two different hysteresis approaches.

scholarly journals Functional Measures of Grip Strength and Gait Remain Altered Long-Term in a Rat Model of Post-Traumatic Elbow Contracture

2019 ◽  
Vol 141 (7) ◽  
Author(s):  
Alex J. Reiter ◽  
Griffin J. Kivitz ◽  
Ryan M. Castile ◽  
Paul C. Cannon ◽  
Emily H. Lakes ◽  
...  
Keyword(s):  
Grip Strength ◽  
Joint Mechanics ◽  
Joint Function ◽  
Gait Patterns ◽  
Gait Parameters ◽  
Quantitative Understanding ◽  
Post Traumatic ◽  
Analysis System

Post-traumatic joint contracture (PTJC) is a debilitating condition, particularly in the elbow. Previously, we established an animal model of elbow PTJC quantifying passive postmortem joint mechanics and histological changes temporally. These results showed persistent motion loss similar to what is experienced in humans. Functional assessment of PTJC in our model was not previously considered; however, these measures would provide a clinically relevant measure and would further validate our model by demonstrating persistently altered joint function. To this end, a custom bilateral grip strength device was developed, and a recently established open-source gait analysis system was used to quantify forelimb function in our unilateral injury model. In vivo joint function was shown to be altered long-term and never fully recover. Specifically, forelimb strength in the injured limbs showed persistent deficits at all time points; additionally, gait patterns remained imbalanced and asymmetric throughout the study (although a few gait parameters did return to near normal levels). A quantitative understanding of these longitudinal, functional disabilities further strengthens the clinical relevance of our rat PTJC model enabling assessment of the effectiveness of future interventions aimed at reducing or preventing PTJC.

Sign in / Sign up

Export Citation Format

Share Document