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We demonstrated a real-time shift-invariant VanderLugt correlator (VLC). The VLC was implemented with a 37 microm thick bis-triarylamine side-chain polymer matrix photorefractive (PR) polymer composite operating at 532 nm wavelength. Correlation selectivity was enhanced by real-time edge enhancement. The advantage of the VLC is that its architecture allows(More)
A 54-year-old woman presented with a large bladder mass and left hydroureteronephrosis. At radical cystectomy (with ileal loop urinary diversion), an unresectable left obturator mass was found. Combination chemotherapy postoperatively resulted in significant shrinkage, and she underwent excision of the residual mass. No residual cancer was seen. The patient(More)
OBJECTIVE To develop a ureteric retrieval net with advantages over existing stone retrieval methods. MATERIALS AND METHODS In vitro experimental trials comparing the ureteric retrieval net with Dormia baskets were performed with porcine ureters and artificial calculi placed in a proximal or distal position. RESULTS For removing a single, large stone (9(More)
Joint contact forces measured with instrumented knee implants have not only revealed general patterns of joint loading but also showed individual variations that could be due to differences in anatomy and joint kinematics. Musculoskeletal human models for dynamic simulation have been utilized to understand body kinetics including joint moments, muscle(More)
PURPOSE Anatomical landmarks and bony features are frequently used in biomechanical and surgical applications. The purpose of this study was to develop a local region matching-based anatomical landmark prediction method. METHODS A reference femur model with anatomical landmarks and a surface division map was prepared. Initial registration between the(More)
We have developed a ureteric stent with features designed to facilitate active expulsion of ureteric stone fragments. Its unique characteristics include a helix-like ridge along a thin central core; the superior edge of the ridge is bevelled caudally and the inferior is concave. The ridge's outer edge is smooth and hydrophilic. As the stent is moved in(More)
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