353: Comparative analysis of two- versus three-dimensional sonography for nuchal translucency (NT) measurement

2013 ◽  
Vol 208 (1) ◽  
pp. S156
Author(s):  
Adeeb Khalifeh ◽  
Fergal Malone ◽  
Antonella Lavelanet ◽  
Dimitri Chamchad ◽  
Andrew Gerson
Keyword(s):  
Comparative Analysis ◽  
Three Dimensional ◽  
Nuchal Translucency

Comparative Analysis of Two- Versus Three-Dimensional Sonography for Nuchal Translucency Measurement

2015 ◽  
Vol 33 (05) ◽  
pp. 486-489
Author(s):  
Stuart Weiner ◽  
Vincenzo Berghella ◽  
Steven Scott ◽  
Andrew Gerson ◽  
Adeeb Khalifeh
Keyword(s):  
Comparative Analysis ◽  
Three Dimensional ◽  
Nuchal Translucency ◽  
Nuchal Translucency Measurement

Comparative Analysis of Several Construction Scheme of a Large-Sized Tie-Arch Aqueduct

2011 ◽  
Vol 94-96 ◽  
pp. 2350-2354
Author(s):  
Shu Zhong Lei ◽  
Zhong Xin Wang ◽  
Jian Ting Xu ◽  
Chi Peng Liu
Keyword(s):  
Comparative Analysis ◽  
Prestressed Concrete ◽  
Three Dimensional ◽  
Stability Control ◽  
River Diversion ◽  
Finite Element Program ◽  
Dimensional Finite Element ◽  
Element Program ◽  
Stress And Deformation ◽  
Three Dimensional Finite Element

An aqueduct of larger-span prestressed concrete arch structure for river diversion project is located in coastal areas, and raises difficult questions on deformation and stability control of the construction process due to greater wind load and poor soil. Due to the limited width of bracket erection, this paper put forward five possible construction schemes, and does the comparative analysis using three-dimensional finite element program, and gets the economic and reasonable one. Finally conduct a pressure test after the bracket erection, and verify the analysis results using measured stress and deformation data.

scholarly journals On The Parameters of Geometric Constraints for Cracked Plates under Tension – Three-Dimensional Problems

2017 ◽  
Vol 22 (4) ◽  
pp. 901-919 ◽  
Author(s):  
M. Graba
Keyword(s):  
Fracture Toughness ◽  
Comparative Analysis ◽  
Crack Front ◽  
External Load ◽  
Three Dimensional ◽  
Geometric Constraints ◽  
Numerical Calculations ◽  
Cracked Plates ◽  
The Relationship ◽  
Actual Fracture

Abstract This paper provides a comparative analysis of selected parameters of the geometric constraints for cracked plates subjected to tension. The results of three-dimensional numerical calculations were used to assess the distribution of these parameters around the crack front and their changes along the crack front. The study also involved considering the influence of the external load on the averaged values of the parameters of the geometric constraints as well as the relationship between the material constants and the level of the geometric constraints contributing to the actual fracture toughness for certain geometries.

How to Eliminate Machining Marks on the Surface of Impeller Blades by CimatronE CAM

2014 ◽  
Vol 628 ◽  
pp. 205-208
Author(s):  
Gui Jie Fan
Keyword(s):  
Comparative Analysis ◽  
Three Dimensional ◽  
Numerical Control ◽  
Surface Structures ◽  
Curved Surface ◽  
Finish Machining ◽  
Cad Cam ◽  
Machining Strategies ◽  
Cam Software ◽  
Control Tool

The impeller blades are hard to machine for its complex and curved surface structures. It is almost impossible to manufacture the blades by manual programming on Numerical Control Tool. Now, the program almost is completed by the three-dimensional CAD/ CAM software, such as UG, Pro/Engineer, CimatronE which have a lot of machining strategies suitable for a wide variety of parts. However, the result is not perfect if you choose improper strategies. Even more, machining marks will be left on the parts’ surface. This paper takes the impeller for an example and gives the solutions for eliminating machining marks left on the impeller blades’ surface through a comparative analysis on the 3-axis finish machining strategies in CimatronE.

Detection of Jarcho-Levin syndrome at 12 weeks' gestation by nuchal translucency screening and three-dimensional ultrasound

10.1002/pd.67 ◽  
2001 ◽  
Vol 21 (5) ◽  
pp. 390-394 ◽  
Author(s):  
Andrew D. Hull ◽  
Gina James ◽  
Dolores H. Pretorius
Keyword(s):  
Three Dimensional ◽  
Nuchal Translucency
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