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Composite materials and especially those made from pre-impregnated (prepreg) material are widely used in the aerospace industry. To achieve the tight assembly dimensional tolerances required, manufacturers rely on additional manufacturing steps like shimming or machining, which generate extra waste, which are time-consuming and expensive. Prepreg sheets come naturally with fiber and resin volume content variability that leads manufacturers to guarantee cured ply thicknesses within a typical +/−5% margin of their nominal values. For thick laminates, this can equate to a thickness variability of as much as a few millimeter. To solve the issue, it is proposed to twin in situ laser measurements of the uncured prepreg thickness with numerical simulations of the laminate autoclave consolidation and cure process and to adjust the number of additional sacrificial plies in the laminate based on the model predictions. This reduces the need for expensive and time-consuming trial and error approaches, extra machining operations, and results in the production of a part with high accuracy dimensions. Data for IM7/8552 and IM7/977-3 are presented to demonstrate the potential of the method to reach an almost exact target thickness for flat panels.

Introduction: Evidence-based teaching and learning strategies should underpin any educational activity. This is particularly important for interprofessional education (IPE) activities, where there is an expectation that healthcare professions are taught using best available evidence. There is a research–practice gap that this review aims to address by using the current evidence to develop recommendations regarding optimal design components to better inform faculty who design IPE. Methods: A five-stage scoping review was conducted. Methodological characteristics and IPE design components of primary and review studies were extracted. Three important components of design—participants (level and stage of progression, discipline type and number, group size and ratios), learning constructs (theories, frameworks, learning objectives) and learning approaches (exchange, observation, action, simulation and practice)—were reviewed to develop recommendations regarding effective design. Results: A total of 41 papers were eligible for inclusion, 24 primary and 17 review studies. The primary studies were predominantly descriptive case studies with 31 disciplines involved in IPE activities across the studies. There was inconsistent reporting of learning constructs utilised in design, and the most reported learning approach was exchange. There was significant variability in the aims and design of the 17 review studies, ranging from systematic reviews to realist reviews, with the number of included studies ranging from six to 104. Conclusions: There was a lack of detailed reporting regarding design components, which limits the evidence base to inform IPE design. Reported components from the primary studies were augmented by findings from the review studies and the wider literature, which enabled the development of recommendations to assist faculty in the design of IPE programs and activities.

Introduction Implementation of interprofessional education (IPE) is recognised as challenging, and well-designed programs can have differing levels of success depending on implementation quality. The aim of this review was to summarise the evidence for implementation of IPE, and identify challenges and key lessons to guide faculty in IPE implementation. Methods Five stage scoping review of methodological characteristics, implementation components, challenges and key lessons in primary studies in IPE. Thematic analysis using a framework of micro (teaching), meso (institutional), and macro (systemic) level education factors was used to synthesise challenges and key lessons. Results Twenty-seven primary studies were included in this review. Studies were predominantly descriptive in design and implementation components inconsistently reported. IPE was mostly integrated into curricula, optional, involved group learning, and used combinations of interactive and didactic approaches. Micro level implementation factors (socialisation issues, learning context, and faculty development), meso level implementation factors (leadership and resources, administrative processes), and macro level implementation factors (education system, government policies, social and cultural values) were extrapolated. Sustainability was identified as an additional factor in IPE implementation. Conclusion Lack of complete detailed reporting limits evidence of IPE implementation, however, this review highlighted challenges and yielded key lessons to guide faculty in the implementation of IPE.

Magnetic Resonance Imaging (MRI) is widely used in medical diagnostics. Sampling of MRI data on Cartesian grids allows efficient computation of the Inverse Discrete Fourier Transform for image reconstruction using the Inverse Fast Fourier Transform (IFFT) algorithm. Though the use of Cartesian trajectories simplifies the IFFT computation, non-Cartesian trajectories have been shown to provide better image resolution with lower scan times. To improve the processing time of MRI image reconstruction for these optimized non-Cartesian trajectories using a Non-uniform Fast Fourier Transform (NuFFT) algorithm, dedicated accelerators are required. We present an FPGA-based MRI solution to implement NuFFT for image reconstruction. The solution is based on the design of an efficient custom accelerator on FPGA using OpenCL, and covers all the phases necessary to reconstruct an image with high accuracy, starting from raw scan data. The architecture can be easily extendable to tackle 3D imaging, and k-space properties have been analyzed to reduce the number of samples processed, achieving satisfactory reconstruction accuracy while positively impacting processing time. Our solution achieves a marked improvement over previously published FPGA- and CPU-based implementations and, due to its scalability, it is suitable for the image sizes common in MRI acquisitions.

This paper proposes an efficient architecture (InvArch) for computing matrix inversion using Gauss-Jordan Elimination method. The proposed architecture exploits parallelism through pipelined floating-point computational units and reduces the number of floating-point multiplication units required compared with the existing pipelined implementations. The reduction in multiplication units results in over 80% reduction in hardware for floating point computation units. The architecture performs in-place inversion and provides scalability across the rows and columns. Hardware efficiency is achieved by reaping benefit from regularity in computation and better utilization of pipelined computational resources. Multiple rows are normalized within an iteration of Gauss-Jordan algorithm that allows reduction in number of floating-point multiplication units in the elimination step. In addition to implementing the architecture, an analytical performance model is also developed for InvArch and some related works. InvArch achieves performance comparable to reference architectures in terms of clock cycles and throughput while using significantly less hardware resources.

Range Migration Algorithm (RMA) is one of the most practiced frequency domain based algorithms for Synthetic Aperture Radar (SAR) image reconstruction. While computationally more intensive than Polar Format Algorithm (PFA), it has superior image reconstruction for large squint angles. Due to the real-time nature of SAR imaging-related tasks, it is desired to have faster hardware implementations of reconstruction algorithms. In this paper we study FPGA-based implementation of the RMA algorithm using a novel pipelined Non-uniform FFT (NuFFT) module that optimizes its operation by exploiting the order in which samples are presented. We demonstrate that we can achieve processing speed of over 600 Msps (Mega Samples per Second) for the implemented RMA algorithm using the FPGA.