There have been a variety of efforts demonstrating the use of solid freeform fabrication (SFF) for prosthetic socket fabrication though there has been little effort in leveraging the strengths of the technology. SFF encompasses a class of technologies that can create three dimensional objects directly from a geometric database without specific tooling or human intervention. A real strength of S...

It was shown [ 21 that any SFF can be decomposed in this manner. Thus, F(x) is an SFF if, and only if, it can be expressed as the sum of four functions in the form of the above equation. Additional SFF studies are reported in refs. [ 3-51. Another issue that has been recently investigated is the fractional Fourier transform [ 6-91. Two distinct definitions of the fractional Fourier transform ha...

Shape from focus (SFF) is a technique to estimate the depth and 3D shape of an object from a sequence of images obtained at different focus settings. In this paper, the SFF is presented as a combinatorial optimization problem. The proposed algorithm tries to find the combination of pixel frames which produces maximum focus measure computed over pixels lying on those frames. To reduce the high c...

Abstract We study the SYK 2 model of N Majorana fermions with random quadratic interactions through a detailed spectral analysis and by coupling to two- four-point sources. In particular, we define generalized form factor (SFF) level spacing distribution function generalizing from partition generating function. For = 2, obtain an exact solution SFF. It exhibits qualitatively similar behavior hi...

SFF processes have demonstrated the ability to produce parts with locally controlled composition. In the limit, processes such as 3D Printing can create parts with composition control on the length scale of 100 microns. To exploit this potential, new methods to model, exchange, and process parts with local composition need to be developed. An approach to modeling a part’s geometry, topology, an...

Current observational evidence suggests that the star formation rate (SFR) efficiency of neutral atomic hydrogen gas measured in damped Lyα systems (DLAs) at ~ z 3 is more than 10 times lower than predicted by the Kennicutt–Schmidt (KS) relation. To understand the origin of this deficit, and to investigate possible evolution with redshift and galaxy properties, we measure the SFR efficiency of ...

We discuss the imprints left by a cosmological evolution of the star formation rate (SFR) on the evolution of X-ray luminosities LX of normal galaxies, using the scheme proposed by White and Ghosh (1998, WG98), wherein the evolution of LX of a galaxy is driven by the evolution of its X-ray binary population. As indicated in WG98, the profile of LX with redshift can both serve as a diagnostic pr...

0262-8856/$ see front matter 2009 Elsevier B.V. A doi:10.1016/j.imavis.2009.10.005 * Corresponding author. Tel.: +82 629702392; fax: E-mail addresses: [email protected] (M.T. Mahmood) Shape from focus (SFF) is one of the optical passive methods for three dimensional (3D) shape recovery of an object from its two dimensional (2D) images. The focus measure plays important role in SFF algorithms. Mo...

PURPOSE Nursing facilities that are determined to have a greater number of quality problems, more serious problems than average, and a demonstrated pattern of quality problems are included in the Special Focus Facility (SFF) initiative. The purpose of this research was to provide descriptive information on these SFFs and to examine the quality characteristics of these facilities. DESIGN AND M...

Male to female gender identity disorder (MTF/GID) is a rare condition. Such patients tend complain that their speaking fundamental frequency (SFF) does not fit because it too low. Type 4 thyroplasty (TP4) conversely increases the pitch of SFF as tension vocal fold tightened causing become high-pitched. While life-threatening for with MTF/GID, can cause substantial worry and stress. TP4 therefor...