The Action of Panels and Other Roof Elements on the Work of Saddle-Shape Suspended Cable Structures

2009 ◽  
Author(s):  
K.P. Oiger
Keyword(s):  
Cable Structures ◽  
Suspended Cable ◽  
Saddle Shape

scholarly journals Erratum for “Undersea Suspended Cable Structures”

1982 ◽  
Vol 108 (4) ◽  
pp. 957-957
Author(s):  
William J. Nordell ◽  
Dallas J. Meggitt
Keyword(s):  
Cable Structures ◽  
Suspended Cable

Undersea Suspended Cable Structures

1981 ◽  
Vol 107 (6) ◽  
pp. 1025-1040
Author(s):  
William J. Nordell ◽  
Dallas J. Meggitt
Keyword(s):  
Cable Structures ◽  
Suspended Cable

Quantitative analysis of mitral annulus morphology in aortic stenosis using real time 3-dimentional transesophageal echocardiography

2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
W Suzuki ◽  
Y Nakano ◽  
H Ohashi ◽  
H Ando ◽  
K Waseda ◽  
...  
Keyword(s):  
Mitral Valve ◽  
Aortic Stenosis ◽  
Transesophageal Echocardiography ◽  
Real Time ◽  
Mitral Annulus ◽  
Left Ventricular Ejection ◽  
Control Group ◽  
The Impact ◽  
The Relationship ◽  
Saddle Shape

Abstract Background Normal mitral annulus morphology is known to be saddle shape. There are a few reports regarding the relationship between flattening of the mitral annular saddle shape and mitral regurgitation. However, the relationship between aortic stenosis (AS) and mitral annulus morphology is unknown. Purpose To assess the impact of AS on mitral annular saddle shape using 3-dimentional transesophageal echocardiography. Methods A total of consecutive 83 subjects including 44 patients with severe AS (AS group) and 39 patients without AS (control group), who underwent real-time 3-dimentional transesophageal echocardiography of the mitral valve, were enrolled. The 3-dimentional geometry of the mitral annulus apparatus was evaluated by the parameters analyzed using dedicated quantification software such as anteroposterior diameter (APD), commissural width (CW), annular height (AH), mitral annulus (MA) area and annular height to commissural width ratio (AHCWR) as shown in Figure. We assessed the impact of severe AS on AHCWR, which is the key parameter showing flattening of the mitral annular saddle shape. These parameters were adjusted by body surface area (BSA). Exclusion criteria included left ventricular ejection fraction <50%, the presence of aortic regurgitation, mitral valve disease, pericardial or congenital diseases, endocarditis, cardiomyopathy, prior myocardial infarction, and paroxysmal or persistent atrial fibrillation. Results Comparisons of mitral valve geometry between AS group and control group are summarized in Table. AH/BSA and AHCWR were significantly lower in AS group compared with control group. Multiple linear regression analysis revealed severe AS to be a significant and independent predictor of lowering AHCWR (β=−0.39, t=−4.04, p<0.001) (adjusted with MA area, selected by stepwise analysis). Conclusions Severe AS might contribute to flattening of the mitral annular saddle shape, lead to the mitral annular structural remodeling. Assessment of the mitral annulus morphology might help evaluating severe AS. Mitral annulus 3-dimensional geometry Funding Acknowledgement Type of funding source: None

Effects of Flue Gas Inlet Structure on the Flow Field Characteristics of Multi-Stage Liquid Column Scrubber

2013 ◽  
Vol 773 ◽  
pp. 749-754
Author(s):  
Zhen Ya Duan ◽  
Fu Lin Zheng ◽  
Hui Ling Shi ◽  
Jun Mei Zhang
Keyword(s):  
Flow Field ◽  
Flue Gas ◽  
Static Pressure ◽  
Liquid Column ◽  
Liquid Distribution ◽  
Multi Stage ◽  
Flow Field Characteristics ◽  
Wall Flow ◽  
Two Peaks ◽  
Saddle Shape

In this paper, the numerical model of multi-stage liquid column scrubber was established. The flow field of liquid column scrubber with different inlet structure was respectively simulated by a commercial CFD code, Fluent. Considering the distribution characteristics of static pressure and velocity in the scrubber, this inlet type, single horizontal gas inlet with a notch at the bottom, is regarded as the most reasonable structure. On one hand, that structure has uniform distribution of static pressure. On the other hand, the velocity profile of its field presents saddle shape, i.e. the low central velocity exists between two peaks, which could contribute to weakening wall-flow phenomenon and obtaining uniform gas-liquid distribution.

scholarly journals A procedure for the static analysis of cable structures following elastic catenary theory

2014 ◽  
Vol 51 (7-8) ◽  
pp. 1521-1533 ◽  
Author(s):  
L. Greco ◽  
N. Impollonia ◽  
M. Cuomo
Keyword(s):  
Static Analysis ◽  
Cable Structures

Offline Programming for an Arc Welding Robot with Redundant DOF

2012 ◽  
Vol 184-185 ◽  
pp. 1623-1627 ◽  
Author(s):  
Huan Ming Chen ◽  
Zhou Ping Liu
Keyword(s):  
Arc Welding ◽  
Degrees Of Freedom ◽  
Motion Path ◽  
Welding Parameters ◽  
Programming System ◽  
Robot Controller ◽  
Offline Programming ◽  
Kinematics Simulation ◽  
Communication Module ◽  
Saddle Shape

To raise the programming efficiency of arc welding robots, the offline programming system was developed for a Motoman-UP20 robot with redundant degrees of freedom in VC++ integration environment. The system consists of kinematics analysis, motion simulation, welding trajectory plan, welding parameters plan and job file generating module. It can plan the motion path and posture of welding gun for saddle-shape seams, and display the workpiece on the interface synchronically. Job instructions can be made step by step, or generated automatically. Kinematics simulation module and communication module are integrated together, and job files can be exchanged between PC and robot controller via Ethernet to realize remote control.

General Solution of Suspended Cable Problems

1967 ◽  
Vol 93 (1) ◽  
pp. 1-26 ◽  
Author(s):  
Terence O’Brien
Keyword(s):  
General Solution ◽  
Suspended Cable

Marine Cable Structures

1980 ◽  
Vol 106 (12) ◽  
pp. 2391-2404
Author(s):  
Alain H. Peyrot
Keyword(s):  
Cable Structures ◽  
Marine Cable
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