Adaptation to split-field wedge prism spectacles.

1969 ◽  
Vol 80 (1) ◽  
pp. 125-132 ◽  
Author(s):  
Herbert L. Pick ◽  
John C. Hay ◽  
Richard Martin
Keyword(s):  
Wedge Prism ◽  
Split Field

Three-dimensional dose accumulation in pseudo-split-field IMRT and brachytherapy for locally advanced cervical cancer

Brachytherapy ◽  
2015 ◽  
Vol 14 (4) ◽  
pp. 481-489 ◽  
Author(s):  
Baozhou Sun ◽  
Deshan Yang ◽  
Jackie Esthappan ◽  
Jose Garcia-Ramirez ◽  
Samantha Price ◽  
...  
Keyword(s):  
Cervical Cancer ◽  
Locally Advanced ◽  
Three Dimensional ◽  
Advanced Cervical Cancer ◽  
Dose Accumulation ◽  
Locally Advanced Cervical Cancer ◽  
Split Field

The Split-Field PML Absorbing Boundary Condition for the Unconditionally Stable Node-Based LOD-RPIM Method

2018 ◽  
Vol 17 (10) ◽  
pp. 1920-1924
Author(s):  
Junfeng Wang ◽  
Zhizhang Chen ◽  
Jingcheng Liang ◽  
Yang Wu ◽  
Cheng Peng ◽  
...  
Keyword(s):  
Boundary Condition ◽  
Absorbing Boundary Condition ◽  
Stable Node ◽  
Absorbing Boundary ◽  
Unconditionally Stable ◽  
Split Field

Finite element analysis on the assembly of circular wedge prism

2006 ◽  
Author(s):  
Anhu Li ◽  
Jianfeng Sun ◽  
Yongjian Zhu ◽  
Liren Liu
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Element Analysis ◽  
Wedge Prism

Quality evaluations on wide FOV wedge prism endoscope

2007 ◽  
pp. 3095-3098 ◽  
Author(s):  
Keri Kim ◽  
Kiyoshi Matsumiya ◽  
Ken Masamune ◽  
Takeyoshi Dohi
Keyword(s):  
Wedge Prism ◽  
Wide Fov

scholarly journals Determining Girard Form Class in Central Hardwoods

1997 ◽  
Vol 14 (4) ◽  
pp. 202-206 ◽  
Author(s):  
John C. Rennie ◽  
Jack D. Leake
Keyword(s):  
Direct Measurement ◽  
Accurate Determination ◽  
Tree Form ◽  
Form Class ◽  
Wide Range ◽  
Close Proximity ◽  
Wedge Prism ◽  
The Cost ◽  
Volume Estimates

Abstract Girard form class is widely used to describe tree form. Tree volume estimates change about 3% per unit change of Girard form class (Mesavage and Girard 1946). Hardwoods growing in close proximity have been observed to have a wide range in Girard form class. Accurate determination of Girard form class can therefore be important in getting accurate estimates of hardwood timber volume. However, the cost of estimating Girard form class for every tree being measured in the stand would be prohibitively expensive. Thus, estimation of average Girard form class for a stand is considered here. Three instruments used to estimate Girard form class—a Wheeler pentaprism optical caliper, a wedge prism, and a Spiegel relaskop—were compared to direct measurement. Number of sample trees to achieve desired half-widths of the confidence interval of ±1 and ±1 1/2 units of Girard form class was calculated for each method. Direct measurement requires the fewest trees to achieve the desired results. However, it requires considerably more time per tree than any of the instruments tested. The Wheeler pentaprism requires only a few more trees than direct measurement, and considerably fewer trees than either the wedge prism or the Spiegel relaskop. Use of all three instruments is hindered when understory vegetation obscures the top of the first log. North. J. Appl. For. 14(4):202-206.

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