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As machine-learning models become larger and more complex, they require faster and more energy-efficient hardware to perform computations. Conventional digital computers are struggling to keep up.
Engineers working to miniaturize optical systems for modern electronics have seen great success when it comes to the most familiar components, the lenses and optical sensors. It’s been more challengin...
Nanocellulose for Energy Storage Systems: Beyond the Limits of Synthetic Materials
bacterial cellulose cellulose nanocrystals cellulose nanofibrils energy storage systems nanocellulose
2024/3/8
The ongoing surge in demand for high-performance energy storage systems inspires the relentless pursuit of advanced materials and structures. Components of energy storage systems are generally based o...
Entering the Fast Lane—MXene Electrodes Push Charging Rate Limits in Energy Storage
Entering the Fast Lane MXene Electrodes Charging Rate Limits Energy Storage
2017/7/24
Can you imagine fully charging your cell phone in just a few seconds? Researchers in Drexel University’s College of Engineering can, and they took a big step toward making it a reality with their rece...
FROM DAGUERREOTYPES TO DIGITAL AUTOMATIC PHOTOGRAMMETRY. APPLICATIONS AND LIMITS FOR THE BUILT HERITAGE PROJECT
Photogrammetry photography conservation restoration
2017/6/20
This paper will describe the evolutionary stages that shaped and built, over the time, a robust and solid relationship between ‘indirect survey methods’ and knowledge of the ‘architectural matter’, ai...
Persistent Scatterer Interferometry: potential and limits
Remote Sensing Satellite Detection Deformation Validation
2016/1/25
This paper is focused on Persistent Scatterer Interferometry (PSI), the most advanced class of differential interferometric Synthetic
Aperture Radar techniques (DInSAR). The paper only refers to the...
POTENTIAL AND LIMITS OF AIRBORNE REMOTE SENSING DATA FOR EXTRACTION OF FRACTIONAL CANOPY COVER AND FOREST STANDS AND DETECTION OF TREE SPECIES
Forestry Ecosystem LIDAR Modelling DEM/DTM Aerial High resolution Multisensor
2015/12/29
This study presents a methodology for derivation of fractional canopy cover, detection of main tree species, and extraction of forest stands using logistic regression, airborne remote sensing data and...
Finding ultimate limits of performance for hybrid electric vehicles
Fuel nonlinear convex optimization large linear programming
2015/8/11
We formulate the problem of optimizing fuel efficiency as a nonlinear convex optimization problem. This convex problem is then accurately approximated as a large linear program. As a result, we comput...
Exploring the Limits of Shock-free Transonic Airfoil Design
Exploring Limits Shock-free Transonic Airfoil Design
2015/7/2
In this study the limits of shock-free transonic airfoil design are explored via computa tional uid dynamics and shape optimization. Using an inviscid ow solver coupled with the adjoint method for sha...
AERODYNAMIC SHAPE OPTIMIZATION:EXPLORING THE LIMITS OF DESIGN
AERODYNAMIC SHAPE OPTIMIZATION EXPLORING LIMITS DESIGN
2015/7/2
This paper discusses the role that computational fluid dynamics (CFD) plays in the design of aircraft. An overview of the design process is provided, covering some of the typical decisions that ...
Nominal Signal Deformations:Limits on GPS Range Accuracy
Nominal Signal Deformations GPS Range Accuracy
2015/6/26
Satellite-based navigation requires precise knowledge of the structure of the transmitted signals. For GPS, accurate knowledge of the shape of the ranging codes is required to ensure no biases are int...
On the Fundamental Limits of Adaptive Sensing
sparse signal estimation adaptive sensing compressed sensing support recovery information bounds hypothesis tests
2015/6/17
Suppose we can sequentially acquire arbitrary linear measurements of an n-dimensional vector x resulting in the linear model y = Ax + z, where z represents measurement noise. If the signal is known to...
APPLICATION AND LIMITS OF STANDARD SOFTWARE FOR 3D-MODEL BASED VISUALISATION, EXTENSION STRATEGIES, ESSENTIAL PROPRIETARY APPLICATIONS
Standard Software Visualisation Application Limits Extension 3D-Model
2015/5/19
This document delivers insight into the creation of 3d-visualisations based on survey and planning data using standard hard- and software. It shows possibilities to extend standard software and demons...
Software Techniques to Reduce the Energy Consumption of Low-Power Devices at the Limits of Digital Abstractions
embedded systems energy low-power rfid security storage
2014/12/18
My thesis explores the effectiveness of software techniques that bend digital abstractions in order to allow embedded systems to do more with less energy. Recent years have witnessed a proliferation o...
Ultimate Limits of Effective Area and Attenuation for High Data Rate Fibers
Fiber design fabrication Fiber characterization
2015/5/25
High data rate telecommunication networks operating at 100 Gb/s require low loss fibers with very large effective areas to mitigate nonlinearities. The state of the art fiber technologies needed to ac...