The use of FPGAs for cryptographic applications is highly attractive for a variety of reasons but at the same time there are many open issues related to the general security of FPGAs. This contribution attempts to provide a state-of-the-art description of this topic. First, the advantages of reconfigurable hardware for cryptographic applications are discussed from a systems perspective. Second, potential security ProBLEms of FPGAs are described in detail, followed by a proposal of a some countermeasure. Third, a list of open research ProBLEms is provided. Even though there have been many contributions dealing with the algorithmic aspects of cryptographic schemes implemented on FPGAs, this contribution appears to be the first comprehensive treatment of system and security aspects.
标签： cryptographic applications attractive for
上传时间： 2013-12-07
上传用户：zhuimenghuadie
This book provides the reader with the basics in radio engineering, the techniques needed to generate, control, detect, and use radio waves. The text approaches the relevant ProBLEms both from the electromagnetic theory based on Maxwell抯 equations and from the circuit theory based on Kirchoff and Ohm抯 laws. Brief introductions to the electromagnetic theory as well as to the circuit theory are provided. Besides passive transmission lines and components, active RF circuits are also addressed.
标签： the engineering techniques provides
上传时间： 2014-01-17
上传用户：rocketrevenge
As a general rule, PhD students and their supervisors tend to focus primarily, or even exclusively, on the content of the research that will go into the doctoral thesis. Other issues are often taken for granted: how to organize your work, give a presentation, work in a team, cope with your supervisor, and how to effectively manage your time.When asked, former PhD students usually claim that the general experience of being a graduate student, which includes learning how to solve complex ProBLEms and work well with others, was of greater value to their careers than the actual topic of their thesis.
标签： exclusively supervisors primarily students
上传时间： 2013-12-16
上传用户：qlpqlq
Altera provides a number of reference designs that show efficient solutions for common design ProBLEms. Altera® reference designs can be used to develop new solutions and innovative products, improve your understanding of Altera product capabilities, as well as help reduce your design time. The use of Altera’s reference designs is governed by, and subject to, the terms and conditions of the Altera Hardware Reference Design License Agreement.
标签： efficient reference solutions provides
上传时间： 2014-01-25
上传用户：asdfasdfd
FP + OOP = Haskell. The programming language Haskell adds object-oriented functionality (using a concept known as type classes ) to a pure functional programming framework. This paper describes these extensions and analyzes its accomplishments as well as some ProBLEms.
标签： Haskell object-oriented functionality programming
上传时间： 2014-09-02
上传用户：zhenyushaw
We introduce a sub-cell WENO reconstruction method to evaluate spatial derivatives in the high-order ADER scheme. The basic idea in our reconstruction is to use only r stencils to reconstruct the point-wise values of solutions and spatial derivatives for the 2r-1 th order ADER scheme in one dimension, while in two dimensions, the dimension-by-dimension sub-cell reconstruction approach for spatial derivatives is employed. Compared with the original ADER scheme of Toro and Titarev (2002) [2] that uses the direct derivatives of reconstructed polynomials for solutions to evaluate spatial derivatives, our method not only reduces greatly the computational costs of the ADER scheme on a given mesh, but also avoids possible numerical oscillations near discontinuities, as demonstrated by a number of one- and two-dimensional numerical tests. All these tests show that the 5th-order ADER scheme based on our sub-cell reconstruction method achieves the desired accuracy, and is essentially non-oscillatory and computationally cheaper for ProBLEms with discontinuities.
标签： 高精度格式
上传时间： 2016-01-13
上传用户：ccsdcczd
Combinatorial Preconditioners and Multilevel Solvers for ProBLEms in Computer Vision and Image Processing
标签： image processing
上传时间： 2016-03-28
上传用户：hzcloudy
Lithium–sulfur batteries are a promising energy-storage technology due to their relatively low cost and high theoretical energy density. However, one of their major technical ProBLEms is the shuttling of soluble polysulfides between electrodes, resulting in rapid capacity fading. Here, we present a metal–organic framework (MOF)-based battery separator to mitigate the shuttling problem. We show that the MOF-based separator acts as an ionic sieve in lithium–sulfur batteries, which selectively sieves Li+ ions while e ciently suppressing undesired polysulfides migrating to the anode side. When a sulfur-containing mesoporous carbon material (approximately 70 wt% sulfur content) is used as a cathode composite without elaborate synthesis or surface modification, a lithium–sulfur battery with a MOF-based separator exhibits a low capacity decay rate (0.019% per cycle over 1,500 cycles). Moreover, there is almost no capacity fading after the initial 100 cycles. Our approach demonstrates the potential for MOF-based materials as separators for energy-storage applications.
上传时间： 2017-11-23
上传用户：653357637
In this paper we present a classifier called bi-density twin support vector machines (BDTWSVMs) for data classification. In the training stage, BDTWSVMs first compute the relative density degrees for all training points using the intra-class graph whose weights are determined by a local scaling heuristic strategy, then optimize a pair of nonparallel hyperplanes through two smaller sized support vector machine (SVM)-typed ProBLEms. In the prediction stage, BDTWSVMs assign to the class label depending on the kernel density degree-based distances from each test point to the two hyperplanes. BDTWSVMs not only inherit good properties from twin support vector machines (TWSVMs) but also give good description for data points. The experimental results on toy as well as publicly available datasets indicate that BDTWSVMs compare favorably with classical SVMs and TWSVMs in terms of generalization
标签： recognition Bi-density machines support pattern vector twin for
上传时间： 2019-06-09
上传用户：lyaiqing
Bulletin of the American Mathematical Society Volume 49 issue 1 1943 [doi 10.1090_s0002-9904-1943-07818-4] Courant, R. -- Variational methods for the solution of ProBLEms of equilibrium and vibratio
上传时间： 2020-05-10
上传用户：蓝天自由
