Geometry, plane, solid, and spherical, in six books. To which is added, in an appendix, the theory of projection.

Mode of access: Internet.

Organizational maintenance repair parts and special tools lists for printer, projection, photographic EN-91B (NSN 6740-00-935-2938).

"September 1978."

Organizational maintenance manual : projection set, motion picture, sound AS-7A.

"30 August 1962."

Operator's manual : projection set, motion picture, sound AS-7A.

"27 August 1962."

Operator's manual : projection set, motion picture, sound AS-2(1).

"7 June 1960."

Operator's and organizational maintenance manual including repair parts and special tools lists : photographic projection printer EN-36B and EN-36B1.

"January 1969."

Indiana's economic resources and potential, a projection to 1970: highlights.

Mode of access: Internet.

Physical and optical properties of projection screens.

Cover title.

Generation of a 3D proximal femur shape from a single projection 2D radiographic image.

Summary Generalized Procrustes analysis and thin plate splines were employed to create an average 3D shape template of the proximal femur that was warped to the size and shape of a single 2D radiographic image of a subject. Mean absolute depth errors are comparable with previous approaches utilising multiple 2D input projections. Introduction Several approaches have been adopted to derive volumetric density (g cm-3) from a conventional 2D representation of areal bone mineral density (BMD, g cm-2). Such approaches have generally aimed at deriving an average depth across the areal projection rather than creating a formal 3D shape of the bone. Methods Generalized Procrustes analysis and thin plate splines were employed to create an average 3D shape template of the proximal femur that was subsequently warped to suit the size and shape of a single 2D radiographic image of a subject. CT scans of excised human femora, 18 and 24 scanned at pixel resolutions of 1.08 mm and 0.674 mm, respectively, were equally split into training (created 3D shape template) and test cohorts. Results The mean absolute depth errors of 3.4 mm and 1.73 mm, respectively, for the two CT pixel sizes are comparable with previous approaches based upon multiple 2D input projections. Conclusions This technique has the potential to derive volumetric density from BMD and to facilitate 3D finite element analysis for prediction of the mechanical integrity of the proximal femur. It may further be applied to other anatomical bone sites such as the distal radius and lumbar spine.