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Towards an anatomical modeling pipeline for simulation and accurate navigation for brain and spine surgery 49

Towards an anatomical modeling pipeline for simulation and a...

49th Summer Computer simulation Conference, SCSC 2017, Part of the 2017 Summer simulation Multi-Conference, SummerSim 2017

作者： Audette, Michel A. Rashid, Tanweer Ghosh, Shrabani Patel, Nirmal Sultana, Sharmin Department of Modeling Simulation and Visualization Engineering Old Dominion University 4700 Elkhorn Avenue NorfolkVA United States

ISBN: (纸本)9781510838284

This paper summarizes work underway on neurosurgery simulation and navigation, emphasizing anatomical modeling techniques and clinical requirements for simulation. We describe innovations that center on patient-specific anatomical modeling of the brain, including skull base anatomy, and spine. In general, we advocate a model-based approach to segmentation that leverages digital atlases of the anatomy, as well as a discrete deformable contour or surface model which can be deformed to fit patient image data. Furthermore, we proceed in a manner that represents several tissue boundaries at once, whereby a voxelbased functional atlas is expressed as a deformable 2-Simplex multi-surface model. Our research has also endowed the 2-Simplex multi-surface model with shape statistics and shared faces. We also describe innovations on deformable 1-Simplex 3D contour models that have been applied to identifying the intracranial portion of cranial nerves. Innovations on the clinical requirements front relate to the development of neurosurgical ontologies. © 2017 Society for modeling & simulation International (SCS).

关键词： Tissue

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Proposed unified discrete event simulation content roadmap for M&S curricula

Proposed unified discrete event simulation content roadmap f...

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2017 Winter simulation Conference, WSC 2017

作者： Leathrum, James F. Mielke, Roland R. Collins, Andrew J. Audette, Michel A. Department of Modeling Simulation and Visualization Engineering Old Dominion University 1300 Engineering and Computational Sciences Building NorfolkVA23529 United States

ISBN: (纸本)9781538634288

This paper presents a new educational roadmap for teaching discrete event system (DES) simulation software design. This roadmap represents the hierarchical structure and inter-relationships characterizing the worldviews of DES simulation, namely, event scheduling and process interaction. The roadmap was developed from the authors' experience while teaching DES simulation to both undergraduate and graduate students, spanning several years. The roadmap's development was motivated by the need to strive for greater completeness as well as fewer inconsistencies in the material curriculum. The commonality between the worldviews is highlighted in striving for a uniform approach. The intent of this paper is to provide other educators a foundation for their own DES simulation course development. A simple example is used to illustrate the worldviews within the roadmap. © 2017 IEEE.

关键词： Curricula

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Impact of connected vehicles on mitigating secondary crash risk

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International Journal of Transportation Science and Technology 2017年第3期6卷 196-207页

作者： Yang, Hong Wang, Zhenyu Xie, Kun Department of Modeling Simulation & Visualization Engineering Old Dominion University Norfolk 23529 VA United States Department of Civil & Natural Resources Engineering University of Canterbury Christchurch New Zealand

Reducing the risk of secondary crashes is a key goal for effective traffic incident management. However, only few countermeasures have been established in practices to achieve the goal. This is mainly due to the stochastic nature of both primary and secondary crashes. Given the emerging connected vehicle (CV) technologies, it is highly likely that CVs will soon be able to communicate with each other through the ad-hoc wireless vehicular network. Information sharing among vehicles is deemed to change traffic operations and allow motorists for more proactive actions. Motorists who receive safety messages can be motivated to approach queues and incident sites with more caution. As a result of the improved situational awareness, the risk of secondary crashes is expected to be reduced. To examine whether this expectation is achievable or not, this study aims to assess the impact of connectivity on the risk of secondary crashes. A simulation-based modeling framework that enables vehicle-to-vehicle communication module was developed. Since crashes cannot be directly simulated in micro-simulation, the use of surrogate safety measures was proposed to capture vehicular conflicts as a proxy for secondary crash risk upstream of a primary crash site. An experimental study was conducted based on the developed simulation modeling framework. The results show that the use of connected vehicles can be a viable way to reduce the risk of secondary crashes. Their impact is expected to change with an increasing market penetration of connected vehicles. © 2017 Tongji University and Tongji University Press

关键词： Connected vehicles Secondary crashes simulation Traffic conflict Vehicle-to-vehicle communication

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Daejeon16 NN interaction

arXiv

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arXiv 2019年

作者： Kim, Y. Shin, I.J. Shirokov, A.M. Sosonkina, M. Maris, P. Vary, J.P. Rare Isotope Science Project Institute for Basic Science Daejeon34047 Korea Republic of Skobeltsyn Institute of Nuclear Physics Moscow State University Moscow119991 Russia Department of Physics Pacific National University Khabarovsk680035 Russia Department of Modeling Simulation and Visualization Engineering Old Dominion University NorfolkVA23529 United States Department of Physics and Astronomy Iowa State University AmesIA50011 United States

We have developed a realistic nucleon-nucleon (NN) interaction, dubbed Daejeon16. We start from a SRG (similarity renormalization group) evolved chiral N3LO interaction. We then apply PETs (phase-equivalent transformations) to the SRG-evolved interaction. It turned out that the obtained in such a way Daejeon16 NN interaction provides a good description of various observables in light nuclei without NNN forces. In this contribution, we present our new results for some selected nuclei using the ab initio no-core shell model (NCSM) with the Daejeon16 interaction. One of the interesting results is that the ab initio NCSM with Daejeon16 clearly demonstrates the phenomenon of parity inversion in 11Be, i. e., the ground state in 11Be has the spin-parity 1/2+ in experiments contrary to the expectation from the conventional shell model. Copyright © 2019, The Authors. All rights reserved.

关键词： Statistical mechanics

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TOWARDS AN ANATOMICAL modeling PIPELINE FOR simulation AND ACCURATE NAVIGATION FOR BRAIN AND SPINE SURGERY 17

TOWARDS AN ANATOMICAL MODELING PIPELINE FOR SIMULATION AND A...

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simulation Multiconference

作者： Michel A. Audette Tanweer Rashid Shrabani Ghosh Nirmal Patel Sharmin Sultana Department of Modeling Simulation and Visualization Engineering Old Dominion University

ISBN: (纸本)9781510838284

This paper summarizes work underway on neurosurgery simulation and navigation, emphasizing anatomical modeling techniques and clinical requirements for simulation. We describe innovations that center on patient-specific anatomical modeling of the brain, including skull base anatomy, and spine. In general, we advocate a model-based approach to segmentation that leverages digital atlases of the anatomy, as well as a discrete deformable contour or surface model which can be deformed to fit patient image data. Furthermore, we proceed in a manner that represents several tissue boundaries at once, whereby a voxel-based functional atlas is expressed as a deformable 2-Simplex multi-surface model. Our research has also endowed the 2-Simplex multi-surface model with shape statistics and shared faces. We also describe innovations on deformable 1-Simplex 3D contour models that have been applied to identifying the intracranial portion of cranial nerves. Innovations on the clinical requirements front relate to the development of neurosurgical ontologies.

关键词： Surgery simulation Meshing Segmentation Intra-operative tissue shift Therapy planning engaging Cerebrum simulating Technological Innovations surface modeling navigation Anatomic Models pipeline WWOX gene image data Anatomy atlas modeling Skull Base

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AN AGENT-BASED simulation OF THE IMPACT OF YOGIC BREATHING ADOPTION 17

AN AGENT-BASED SIMULATION OF THE IMPACT OF YOGIC BREATHING A...

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simulation Multiconference

作者： Saturnina Nisperos Sonali Kakde Frederic McKenzie Department of Modeling Simulation & Visualization Engineering Old Dominion University

ISBN: (纸本)9781510838284

Stress can impose negative impact on the health and well-being of a person. People who do not have tools to manage their stress are more likely to acquire cardiovascular disease (CVD) - the leading cause of death in the USA. For affected individuals, it not only implies health risks but also increased medical expenditures which can lead to financial issues - the top stressor in the USA. Research studies reveal that yoga reduces the stress perceived and modulates stress response systems. In this study, an agent-based model was developed to simulate the impact of adopting a yogic breathing technique, particularly on managing stress, preventing CVD and reducing the associated medical expenses. The simulation results show that people who practice SKY have generally lower and normal SBP, BMI and stress levels while those who don't, have generally higher levels and fall into the high-risk category.

关键词： Agent-based model Cardiovascular disease Yogic breathing technique Cardiovascular Diseases Agent-Based modeling respiration Cause of Death stresses Stress (mechanics) Stress Persons simulating sky Yoga Stress intensity Health hazards Stressing Adoption

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Evaluating effects of application based and automatic energy saving strategies on NWChem 25

Evaluating effects of application based and automatic energy...

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25th High Performance Computing Symposium, HPC 2017, Part of the 2017 Spring simulation Multi-Conference, SpringSim 2017

作者： Sundriyal, Vaibhav Fought, Ellie Sosonkina, Masha Windus, Theresa L. Department of Modeling Simulation and Visualization Engineering Old Dominion University NorfolkVA23529 United States Department of Chemistry Iowa State University AmesIA50010 United States

ISBN: (纸本)9781510838222

High-performance application developers are becoming increasingly aware of effects of the increasing energy consumption on the costs and reliability of modern computing systems. A traditional way to achieve energy savings is by changing the processor frequency dynamically during application execution. Several techniques have been proposed in the past at application, library, and transparent level. In this work, the effect of two such techniques, at application and transparent levels, are evaluated in terms of their effects on the execution time and energy consumption for different algorithms in the quantum chemistry package NWChem. Experimental results depict that there is no clear winner between the two methods since the transparent-level makes decisions without intimate knowledge of the application while the strategy based solely on application does not take into the account the platform characteristics at the runtime. Hence, it is argued that the best strategy would be a hybrid of the two levels. ©2017 Society for modeling & simulation International (SCS).

关键词： Energy utilization

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Hurricane Evacuation modeling Using Behavior Models and Scenario-Driven Agent-based simulations

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Procedia Computer Science 2018年 130卷 836-843页

作者： Yuan Zhu Kun Xie Kaan Ozbay Hong Yang New York University C2SMART Center (A Tier USDOT UTC) 6 Metrotech Center Brooklyn NY 11201 USA Old Dominion University Department of Modeling Simulation & Visualization Engineering 4700 Elkhorn Ave Norfolk VA 23529 USA University of Canterbury Department of Civil and Natural Resources Engineering 20 Kirkwood Ave Christchurch 8041 New Zealand

Transportation modeling and simulation play an important role in the planning and management of emergency evacuation. It is often indispensable for the preparedness and timely response to extreme events occurring in highly populated areas. Reliable and robust agent-based evacuation models are of great importance to support evacuation decision making. Nevertheless, these models rely on numerous hypothetical causal relationships between the evacuation behavior and a variety of factors including socio-economic characteristics and storm intensity. Understanding the impacts of these factors on evacuation behaviors (e.g., destination and route choices) is crucial in preparing optimal evacuation plans. This paper aims to contribute to the literature by integrating well-calibrated behavior models with an agent-based evacuation simulation model in the context of hurricane evacuation. Specifically, discrete choice models were developed to estimate the evacuation behaviors based on large-scale survey data in Northern New Jersey. Monte-Carlo Markov Chain (MCMC) sampling method was used to estimate evacuation propensity and destination choices for the whole population. Finally, evacuation of over a million residents in the study area was simulated using agent-based simulation built in MATSim. The agent-based modeling framework proposed in this paper provides an integrated methodology for evacuation simulation with specific consideration of agents’ behaviors. The simulation results need to be further validated and verified using real-world evacuation data.

关键词： Hurricane evacuation demand modeling agent-based simulation MATSim

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Proposed unified discrete event simulation content roadmap for M&S curricula 17

Proposed unified discrete event simulation content roadmap f...

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simulation Winter Conference

作者： James F. Leathrum Roland R. Mielke Andrew J. Collins Michel A. Audette Department of Modeling Simulation and Visualization Engineering Old Dominion University Norfolk VA USA

ISBN: (纸本)9781538634271

关键词： Software Markov processes Petri nets Flowcharts Algorithms

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EVALUATING EFFECTS OF APPLICATION BASED AND AUTOMATIC ENERGY SAVING STRATEGIES ON NWCHEM 17

EVALUATING EFFECTS OF APPLICATION BASED AND AUTOMATIC ENERGY...

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simulation Multiconference

作者： Vaibhav Sundriyal Masha Sosonkina Ellie Fought Theresa L. Windus Department of Modeling Simulation and Visualization Engineering Old Dominion University Department of Chemistry Iowa State University

ISBN: (纸本)9781510838222

关键词： DVFS Energy Power NWChem Oversubscription energy saving Energy sources Platform Characteristics energy consumption execution time AUTOMATIC Power (Psychology) Hyalin

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