Surgical preparation is enhanced by the availability of computer-generated three-dimensional models that allow surgeons to explore the surgical field in various projections prior to an actual operation. In fact, with adequate computed tomography images, an entire operation can be simulated beforehand so that surgeons can plan the safest and most effective approach and be prepared to avoid or ov...

Computer Integrated Construction (CIC) is a target state for construction computing characterised by extensive digital information flows between computer applications. Fully developed CIC requires an infrastructure of data structuring and transfer standards, digitised construction information services, changing patterns of organising projects etc. The creation of such an infrastructure is curre...

For the real-time computation of computer-generated holograms (CGHs), various accelerated algorithms have been actively investigated. This paper proposes a novel concept of sparse computation of polygon CGH, which is inspired by an observation of the sparsity in the angular spectrum of a unit triangular polygon and present the accelerated algorithm using the intrinsic sparsity in the polygon CG...

We have developed a new computer algorithm for determining the backbone resonance assignments for biopolymers. The approach we have taken, relative hypothesis prioritization, is implemented as a Lua program interfaced to the recently developed computer-aided resonance assignment (CARA) program. Our program can work with virtually any spectrum type, and is especially good with NOESY data. The re...

The quantum computer (QC) algorithm by Peter Shor [2] for factorization of integers is studied. The quantum nature of a QC makes its outcome random. The output probability distribution is investigated and the chances of a successful operation is determined.

High dose rate brachytherapy (HDR) using 192Ir sources is well accepted as an important treatment option and thus requires an accurate dosimetry standard. However, a dosimetry standard for the direct measurement of the absolute dose to water for this particular source type is currently not available. An improved standard for the absorbed dose to water based on Fricke dosimetry of HDR 192Ir brac...

This paper describes a specific Distributed Display Environment (DDE) developed for a Computer-Assisted Surgery (CAS) system. A mini LCD screen is used to display surgical guidance information. The resulting DDE is described according to a multimodal viewpoint. Author

The purpose of this paper is to describe a feasibility prototype of a Computer-Aided Instruction (CAI) system, developed for mining engineering students and mine and safety personnel to teach the complex interrelationships between a mine ventilation system and a mine fire. The system employs an artificial intelligence technique to increase students' involvement in the learning process of "inter...

Purpose. Following limb conserving surgery for bone or soft tissue sarcoma, patients may require post-operative radiotherapy to minimise the risk of local recurrence. In such circumstances the metal prosthesis reduces the dose in its shadow by approximately 10% when using opposed fields. We describe a technique to boost the underdosed area to overcome this problem.Patients or subjects. Seven se...