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Full-Text Articles in Engineering
Fast And Accurate Proton Computed Tomography Image Reconstruction For Applications In Proton Therapy, Scott Penfold, R. W. Schulte, V. Bashkirov, Anatoly B. Rosenfeld
Fast And Accurate Proton Computed Tomography Image Reconstruction For Applications In Proton Therapy, Scott Penfold, R. W. Schulte, V. Bashkirov, Anatoly B. Rosenfeld
Faculty of Engineering - Papers (Archive)
Proton computed tomography has been suggested as a means for maximizing the potential benefits of proton radiation therapy. By measuring individual proton energy losses after traversing an object and predicting paths of maximum likelihood through the image space, relative stopping power maps can be generated for treatment planning and image guidance. However, the processes of proton interaction with the imaged object lead to a number of challenges in the image reconstruction procedure. In this work we describe our approach to obtaining accurate relative stopping power maps in the shortest amount of time.
Superconducting Magnetic Energy Storage Systems For Power System Applications, Danny Soetanto, K.W.E Cheng
Superconducting Magnetic Energy Storage Systems For Power System Applications, Danny Soetanto, K.W.E Cheng
Faculty of Engineering - Papers (Archive)
Advancement in both superconducting technologies and power electronics led to High Temperature Superconducting Magnetic Energy Storage Systems (SMES) having some excellent performances for use in power systems, such as rapid response (millisecond), high power (multi-MW), high efficiency, and four- quadrant control. This paper provides a review on SMES applications to power systems.
Applications Of Hydraulic Properties Models On Microscopic Flow In Unsaturated Porous Media, Thidarat Bunsri, Muttucumaru Sivakumar, Dharmappa Hagare
Applications Of Hydraulic Properties Models On Microscopic Flow In Unsaturated Porous Media, Thidarat Bunsri, Muttucumaru Sivakumar, Dharmappa Hagare
Faculty of Engineering - Papers (Archive)
Several existing equations for solving the non-linear soil-hydraulic properties are introduced and validated to field and laboratory measured data. Models for non-linear hydraulic properties of unsaturated porous media arise from statistical and mathematical fit through the measured data and they can be expressed in forms of unsaturated permeability versus either pressure head or volumetric moisture content. This paper presents the difference models: Gardner, Knuze et al., Haverkamp et al., van Genuchten and Saxton et al. for calculation of hydraulic properties coefficients, typicallyunsaturated permeability. The accurate and computational efficiency of these five existing models are evaluated for a series of study …
Mre Properties Under Shear And Squeeze Modes And Applications, Kristin Popp, Matthias Kroger, Weihua Li, Xianzhou Zhang, Prabuono B. Kosasih
Mre Properties Under Shear And Squeeze Modes And Applications, Kristin Popp, Matthias Kroger, Weihua Li, Xianzhou Zhang, Prabuono B. Kosasih
Faculty of Engineering - Papers (Archive)
Magnetorheological elastomers (MREs) are smart materials whose mechanical properties, like their modulus and elasticity, can be controlled by an external magnetic field. This feature has resulted in a number of novel applications, such as adaptive tuned dynamic vibration absorbers for suppressing unwanted vibrations over a wide frequency range. MRE-based devices operate in different modes, such as shear mode and squeeze mode; however, the study of mechanical performances of MREs under squeeze mode is very rare. This article aims to investigate MRE performances under both shear and squeeze modes. Experimental studies and simulations were conducted to analyze the MR effect in …
Evaluation Of Silicon Detectors With Integrated Jfet For Biomedical Applications, Mitra Safavi-Naeini, D. Franklin, Michael L. Lerch, Marco Petasecca, Giorgio U. Pignatel, Mark I. Reinhard, G. F. Dalla Betta, N. Zorzi, Anatoly B. Rosenfeld
Evaluation Of Silicon Detectors With Integrated Jfet For Biomedical Applications, Mitra Safavi-Naeini, D. Franklin, Michael L. Lerch, Marco Petasecca, Giorgio U. Pignatel, Mark I. Reinhard, G. F. Dalla Betta, N. Zorzi, Anatoly B. Rosenfeld
Faculty of Engineering - Papers (Archive)
This paper presents initial results from electrical, spectroscopic and ion beam induced charge (IBIC) characterisation of a novel silicon PIN detector, featuring an on-chip n -channel JFET and matched feedback capacitor integrated on its p-side (frontside). This structure reduces electronic noise by minimising stray capacitance and enables highly efficient optical coupling between the detector back-side and scintillator, providing a fill factor of close to 100%. The detector is specifically designed for use in high resolution gamma cameras, where a pixellated scintillator crystal is directly coupled to an array of silicon photodetectors. The on-chip JFET is matched with the photodiode …