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Innovative Diagnostics and Treatment: Nanorobotics and Stem Cells 1st ed. 2017

丛书名： SpringerBriefs in Applied Sciences and Technology

2017年

作者： Tomasz Jadczyk Ewa Bryndza Tfaily Sachin Mishra Marek Jędrzejek Marta Bołoz Parasuraman Padmanabhan Wojciech Wojakowski Zdeněk Stárek Sylvain Martel Balázs Gulyás

ISBN: (数字)9789811045271

ISBN: (纸本)9789811045264

This book focuses on nanorobotic agents and stem cells for biomedical *** is intended for researchers and clinicians interested in innovative diagnostic and therapeutic strategies based on nanorobots and stem *** presents current advances in the field of molecular machines, which could be applied to generate novel therapeutic-diagnostic systems.

关键词： Biomedical engineering and Bioengineering Cancer Biology Cardiology Microsystems and MEMS Biomedical Research Biomaterials

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Red Lesion Detection Using Dynamic Shape Features for Diabetic Retinopathy Screening

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IEEE Transactions on Medical Imaging 2016年第4期35卷 1116-1126页

作者： Seoud, Lama Hurtut, Thomas Chelbi, Jihed Cheriet, Farida Langlois, J. M. Pierre Diagnos Inc. BrossardQCJ4Z 1A7 Canada Department of Computer and Software Engineering Polytechnique Montreal QCH3T 1J4 Canada

The development of an automatic telemedicine system for computer-aided screening and grading of diabetic retinopathy depends on reliable detection of retinal lesions in fundus images. In this paper, a novel method for automatic detection of both microaneurysms and hemorrhages in color fundus images is described and validated. The main contribution is a new set of shape features, called Dynamic Shape Features, that do not require precise segmentation of the regions to be classified. These features represent the evolution of the shape during image flooding and allow to discriminate between lesions and vessel segments. The method is validated per-lesion and per-image using six databases, four of which are publicly available. It proves to be robust with respect to variability in image resolution, quality and acquisition system. On the Retinopathy Online Challenge's database, the method achieves a FROC score of 0.420 which ranks it fourth. On the Messidor database, when detecting images with diabetic retinopathy, the proposed method achieves an area under the ROC curve of 0.899, comparable to the score of human experts, and it outperforms state-of-the-art approaches. © 2015 IEEE.

关键词： Database systems

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Virtual CPU State Detection and Execution Flow Analysis by Host Tracing

Virtual CPU State Detection and Execution Flow Analysis by H...

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IEEE International Conference on Big Data and Cloud Computing (BdCloud)

作者： Hani Nemati Michel R. Dagenais Department of Computer and Software Engineering Polytechnique Montreal Quebec Canada

ISBN: (纸本)9781509039371

Cloud computing offers to the end user the ability of accessing a pool of resources with the Pay as Use (PaU) model. By leveraging this technology, users can benefit from hardware virtualization for on-demand resource acquisition and rapid elasticity. However, there is no effective tool to analyze virtual hardware performance, especially when isolation between these virtual resources is not adequate. The existing tools need to access and trace the whole activity of the VM and host. However, in most cases, tracing the virtual machine (VM) is not possible because of security issues and the added overhead. Therefore, there is a need for a tool to troubleshoot unexpected behavior of VMs without internal access for tracing or debugging. In this paper, we propose a new method to study the state of CPUs inside VMs without internal access. Our tool can detect unexpected delays and their root causes. We developed a virtual CPU (vCPU) state analyser to detect the state of vCPUs along with the reason for being in that state. This approach relies on host tracing, thus adding less overhead to VMs as compared to existing approaches. Then we propose a new approach for profiling threads inside the VMs by host tracing. We implemented different views for the TraceCompass trace viewer to let the administrator visually track different threads and their states inside the VMs. Our tool can detect different problems such as overcommitment of resources.

关键词： Monitoring Virtual machining Virtual machine monitors Virtualization Cloud computing Linux

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Massive enhancement of scatter in UV exposed optical Fibers

Massive enhancement of scatter in UV exposed optical Fibers

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Specialty Optical Fibers, SOF 2016

作者： Parent, Francois Loranger, Sebastien Kadoury, Samuel Kashyap, Raman Department of Electrical Engineering Polytechnique Montreal 2900 Boul. Edouard-Montpetit MontrealQCH3T lJ4 Canada Department of Engineering Physics Polytechnique Montreal 2900 Boul. Edouard-Montpetit MontrealQCH3T lJ4 Canada Department of Computer and Software Engineering Polytechnique Montreal 2900 Boul. Edouard-Montpetit MontrealQCH3T lJ4 Canada

We demonstrate an enhancement of up to 40 dB in the optical scatter in 213nm wavelength UV-exposed optical fibers, allowing high-resolution shape, temperature and strain sensing.

ISBN: (纸本)9781943580149

We demonstrate an enhancement of up to 40 dB in the optical scatter in 213nm wavelength UV-exposed optical fibers, allowing high-resolution shape, temperature and strain sensing.

关键词： Optical fibers

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Tracking using Numerous Anchor Points

arXiv

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arXiv 2017年

作者： Chakravorty, Tanushri Bilodeau, Guillaume-Alexandre Granger, Éric LITIV Lab. Department of Computer and Software Engineering Polytechnique Montreal QuebecQCH3T1J4 Canada LIVIA École de technologie supérieure Université du Québec Montreal QuebecQCH3C1K3 Canada

In this paper, an online adaptive model-free tracker is proposed to track single objects in video sequences to deal with real-world tracking challenges like low-resolution, object deformation, occlusion and motion blur. The novelty lies in the construction of a strong appearance model that captures features from the initialized bounding box and then are assembled into anchor point features. These features memorize the global pattern of the object and have an internal star graph-like structure. These features are unique and flexible and helps tracking generic and deformable objects with no limitation on specific objects. In addition, the relevance of each feature is evaluated online using short-term consistency and long-term consistency. These parameters are adapted to retain consistent features that vote for the object location and that deal with outliers for long-term tracking scenarios. Additionally, voting in a Gaussian manner helps in tackling inherent noise of the tracking system and in accurate object localization. Furthermore, the proposed tracker uses pairwise distance measure to cope with scale variations and combines pixel-level binary features and global weighted color features for model update. Finally, experimental results on a visual tracking benchmark dataset are presented to demonstrate the effectiveness and competitiveness of the proposed tracker. Copyright © 2017, The Authors. All rights reserved.

关键词： Deformation

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UMAP 2016 posters, demos, and late-breaking results papers: Preface

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CEUR Workshop Proceedings 2016年 1618卷

作者： Dicheva, Darina Desmarais, Michel C. Department of Computer Science Winston-Salem State University Winston-SalemNC United States Computer and Software Engineering Polytechnique Montreal MontrealQC Canada

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Author Correction: Open-access quantitative MRI data of the spinal cord and reproducibility across participants, sites and manufacturers

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Scientific data 2021年第1期8卷 242页

作者： Julien Cohen-Adad Eva Alonso-Ortiz Mihael Abramovic Carina Arneitz Nicole Atcheson Laura Barlow Robert L Barry Markus Barth Marco Battiston Christian Büchel Matthew Budde Virginie Callot Anna J E Combes Benjamin De Leener Maxime Descoteaux Paulo Loureiro de Sousa Marek Dostál Julien Doyon Adam Dvorak Falk Eippert Karla R Epperson Kevin S Epperson Patrick Freund Jürgen Finsterbusch Alexandru Foias Michela Fratini Issei Fukunaga Claudia A M Gandini Wheeler-Kingshott Giancarlo Germani Guillaume Gilbert Federico Giove Charley Gros Francesco Grussu Akifumi Hagiwara Pierre-Gilles Henry Tomáš Horák Masaaki Hori James Joers Kouhei Kamiya Haleh Karbasforoushan Miloš Keřkovský Ali Khatibi Joo-Won Kim Nawal Kinany Hagen H Kitzler Shannon Kolind Yazhuo Kong Petr Kudlička Paul Kuntke Nyoman D Kurniawan Slawomir Kusmia René Labounek Maria Marcella Laganà Cornelia Laule Christine S Law Christophe Lenglet Tobias Leutritz Yaou Liu Sara Llufriu Sean Mackey Eloy Martinez-Heras Loan Mattera Igor Nestrasil Kristin P O'Grady Nico Papinutto Daniel Papp Deborah Pareto Todd B Parrish Anna Pichiecchio Ferran Prados Àlex Rovira Marc J Ruitenberg Rebecca S Samson Giovanni Savini Maryam Seif Alan C Seifert Alex K Smith Seth A Smith Zachary A Smith Elisabeth Solana Y Suzuki George Tackley Alexandra Tinnermann Jan Valošek Dimitri Van De Ville Marios C Yiannakas Kenneth A Weber Ii Nikolaus Weiskopf Richard G Wise Patrik O Wyss Junqian Xu NeuroPoly Lab Institute of Biomedical Engineering Polytechnique Montreal Montreal QC Canada. jcohen@polymtl.ca. Functional Neuroimaging Unit CRIUGM Université de Montréal Montreal QC Canada. jcohen@polymtl.ca. Mila - Quebec AI Institute Montreal QC Canada. jcohen@polymtl.ca. NeuroPoly Lab Institute of Biomedical Engineering Polytechnique Montreal Montreal QC Canada. Department of Radiology Swiss Paraplegic Centre Nottwil Switzerland. Centre for Advanced Imaging The University of Queensland Brisbane Australia. Department of Radiology University of British Columbia Vancouver BC Canada. Athinoula A. Martinos Center for Biomedical Imaging Department of Radiology Massachusetts General Hospital Charlestown MA USA. Department of Radiology Harvard Medical School Boston MA USA. Harvard-Massachusetts Institute of Technology Health Sciences & Technology Cambridge MA USA. School of Information Technology and Electrical Engineering The University of Queensland Brisbane Australia. NMR Research Unit Queen Square MS Centre UCL Queen Square Institute of Neurology Faculty of Brain Sciences University College London London UK. Department of Systems Neuroscience University Medical Center Hamburg-Eppendorf Hamburg Germany. Department of Neurosurgery Medical College of Wisconsin Milwaukee WI USA. Aix-Marseille Univ CNRS CRMBM Marseille France. APHM Hopital Universitaire Timone CEMEREM Marseille France. Vanderbilt University Institute of Imaging Science Vanderbilt University Medical Center Nashville TN USA. Department of Computer and Software Engineering Polytechnique Montreal Montreal Canada. CHU Sainte-Justine Research Centre Montreal QC Canada. Centre de Recherche CHUS CIMS Sherbrooke Canada. Sherbrooke Connectivity Imaging Lab (SCIL) Computer Science department Université de Sherbrooke Sherbrooke Canada. Université de Strasbourg CNRS ICube Strasbourg France. UHB - University Hospital Brno and Masaryk University Department of Radiology and Nuclear

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Enabling efficient tolerance analysis in silicon photonic integrated circuits

Enabling efficient tolerance analysis in silicon photonic in...

引用

Progress in Electromagnetic Research Symposium (PIERS)

作者： Mahdi Nikdast Gabriela Nicolescu Jelena Trajkovic Odile Liboiron-Ladouceur Computer and Software Engineering Department Polytechnique Montréal Canada Concordia University Montreal QC CA McGill University Montreal QC CA

ISBN: (纸本)9781509060948

Silicon photonic devices and integrated circuits are vulnerable to fabrication-induced process variations (a.k.a. fabrication non-uniformity). Designing silicon photonic integrated circuits (PICs) for wavelength-division multiplexing (WDM)-based applications requires a careful consideration of fabrication-induced process variations. While numerical simulations (e.g., FDTD) help predict a device's behaviour after its fabrication, applying such methods to large-scale PICs is not feasible as they impose an extremely high computation cost. In this work, we present a computationally efficient and yet accurate bottom-up approach to study the impact of fabrication-induced process variations on passive silicon photonic devices and integrated circuits. The bottom-up approach starts by studying the impact of process variations on the effective and group indices of strip waveguides (component level). Leveraging the analytical models at the component level, we evaluate the tolerance of microresonator (MR)-based add-drop filters and switches under different process variations (device level). We specifically consider the variations in the top silicon thickness and waveguide width. Compared with time-consuming numerical simulations, we demonstrate that our proposed method is highly efficient in terms of accuracy and computation time: an error rate smaller than 1% and a speed-up greater than 100× are achieved. Our study also involves the design, fabrication, and analysis of several identically-designed fabricated MRs, for which we evaluate the within-die variations and also quantify the resonance wavelength shifts. Moreover, we indicate a strong correlation among the resonance wavelengths of the MRs in proximity as well as those which are not in close proximity. Our proposed method helps evaluate the impact of process variations on the performance of large-scale PICs, determining power penalties required to trim/tune (e.g., thermal tuning) faulty devices in such systems.

关键词： Silicon photonics Integrated circuits Fabrication computers Numerical simulation Electromagnetic waveguides Electromagnetics

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Do Code Smells Impact the Effort of Different Maintenance Programming Activities?

Do Code Smells Impact the Effort of Different Maintenance Pr...

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IEEE International Conference on software Analysis, Evolution and Reengineering (SANER)

作者： Zéphyrin Soh Aiko Yamashita Foutse Khomh Yann-Gaël Guéhéneuc Department of Computer and Software Engineering Polytechnique de Montreal Department of Information Technology Oslo and Akershus University Oslo Norway

Empirical studies have shown so far that code smells have relatively low impact over maintenance effort at file level. We surmise that previous studies have found low effects of code smells because the effort considered is a "sheer-effort" that does not distinguish between the kinds of developers' activities. In our study, we investigate the effects of code smells at the activity level. Examples of activities are: reading, editing, searching, and navigating, which are performed independently over different files during maintenance. We conjecture that structural attributes represented in the form of different code smells do indeed have an effect on the effort for performing certain kinds of activities. To verify this conjecture, we revisit a previous study about the impact of code smell on maintenance effort, using the same dataset, but considering activity effort. Six professional developers were hired to perform three maintenance tasks on four functionally equivalent Java Systems. Each developer performs two maintenance tasks. During maintenance task, we monitor developers' logs. Then, we define an annotation schema to identify developers' activities and assess whether code smells affect different maintenance activities. Results show that different code smells affect differently activity effort. Yet, the size of the changes performed to solve the task impacts the effort of all activities more than code smells and file size. While code smells impact the editing and navigating effort more than file size, the file size impacts the reading and searching activities more than code smells. One major implication of these results is that if code smells indeed affect the effort of certain kinds of activities, it means that their effects are contingent on the type of maintenance task at hand, where some kinds of activities will become more predominant than others.

关键词： Maintenance engineering Navigation Java Programming software Companies software engineering

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Nanorobotic agents and their biomedical applications

SpringerBriefs in Applied Sciences and Technology

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SpringerBriefs in Applied Sciences and Technology 2017年第9789811045264期 37-61页

作者： Jadczyk, Tomasz Tfaily, Ewa Bryndza Mishra, Sachin Jędrzejek, Marek Boloz, Marta Padmanabhan, Parasuraman Wojakowski, Wojciech Stárek, Zdeněk Martel, Sylvain Gulyás, Balázs Third Division of Cardiology Medical University of Silesia Katowice Poland Department of Orthopaedic Surgery University of Illinois at Chicago ChicagoIL United States Lee Kong Chian School of Medicine Nanyang Technological University Singapore Singapore 1st Department of Internal Medicine/Cardioangiology International Clinical Research Center St. Anne’s University Hospital Brno Czech Republic NanoRobotics Laboratory Department of Computer and Software Engineering Institute of Biomedical Engineering Polytechnique Montréal MontrealQC Canada

ISBN: (纸本)9783319636696

Application of nanorobotic agents is one of the most-promising perspective for future development and progress in medicine. Molecular machines gain significant attention with an ultimate goal to create a theranostic platform interacting with biological system and being able to perform atomic-level tasks. Such concept requires advanced technological approach i.e. design and assembly techniques, in vivo real-time navigation system, sensing methods as well as data transfer. Currently, both artificial (carbon nanotubes) and biological (DNA, proteins, bacteria) components are investigated as a building blocks of nanobots. This chapter presents advancements in nanorobotic agents biomedical application. © 2017, The Author(s).

关键词： Medical nanotechnology

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