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- Researchers use ordinary camera flash to create graphene
- The production of graphene has just become a whole lot easier. Northwestern University scientists have demonstrated that graphite oxide can be converted instantly to graphene by exposing the material to a pulse of light from an ordinary camera flash. Laura J. Cote, Rodolfo Cruz-Silva, and Jiaxing Huang...
- Tags: Northwestern University, Camera, Graphene, Chris Jablonski
- Blog posts 2009-07-22
- Northwestern University Delivers Superior Service to Constituents and Improves Operational Efficiency
- Northwestern University wanted to improve operational efficiency to minimize increases in tuition and maintain the quality of academic programs and student services to meet student demands. The challenge was to ensure the highest levels of security and compliance. Northwestern University implemented Oracle's PeopleSoft Enterprise Human Capital Management and PeopleSoft Enterprise...
- Tags: Oracle Corp., Northwestern University, Recruitment & Selection, Human Capital, Human Resources, Workforce Management
- Case studies 2008-09-01
- Beijing Olympic logos written by nano pens
- Northwestern University NU researchers have used a new printing technique, called Polymer Pen Lithography PPL, to print 15,000 Beijing Olympic logos on one square centimeter. Besides this 'marketing' approach, the PPL technique is very innovative. It can write on three different length scales -- nanometer, micrometer and millimeter -- using...
- Tags: Technique, Northwestern University, Polymer, Pen, Polymer Pen Lithography, Productivity, Roland Piquepaille
- Blog posts 2008-08-15
- Testing new transistors in space
- Northwestern University researchers have developed new transistors which are currently tested on the International Space Station ISS to see how they react to cosmic radiation. These transistors, which are using a new kind of gate dielectric material called a self-assembled nanodielectric SAND, are exposed to radiation outside the ISS since...
- Tags: Silicon, Northwestern University, Transistor, Radiation, Semiconductors, Hardware, Roland Piquepaille
- Blog posts 2008-06-11
- Design and Implementation of a High-Performance Microprocessor Cache Compression Algorithm
- Researchers have proposed using hardware data compression units within the memory hierarchies of microprocessors in order to improve performance, energy efficiency, and functionality. However, most past work, and in particular work on cache compression, has made unsubstantiated assumptions about the performance, power consumption, and area overheads of the required compression...
- Tags: Algorithm, Performance, Data Compression, Northwestern University, High-performance, Hardware, Performance Management, Human Resources, Workforce Management
- White papers 2008-01-08
- Towards a High-Speed Router-Based Anomaly/Intrusion Detection System
- Traffic anomalies and attacks are commonplace in today's networks, and identifying them rapidly and accurately is critical for large networks. With the rapid growth of network bandwidth and fast emergence of new attacks/worms, existing network Intrusion Detection Systems IDS are insufficient for the following two reasons. First, they are mostly...
- Tags: Network, Northwestern University, Networking
- White papers 2008-01-01
- IDGraphs: Intrusion Detection and Analysis Using Histographs
- Traffic anomalies and attacks are commonplace in today's networks and identifying them rapidly and accurately is critical for large network operators. For a statistical Intrusion Detection System IDS, it is crucial to detect at the flow-level for accurate detection and mitigation. However, existing IDS systems offer only limited support for...
- Tags: Network, Northwestern University, Intrusion Detection System, Analysis, Anomaly, IDGraphs, Intrusion Detection, Network Security, Security, Networking
- White papers 2008-01-01
- A Reconfigurable Architecture for Network Intrusion Detection Using Principal Component Analysis
- This paper develops architecture for Principal Component Analysis PCA to be used as an outlier detection method for high-speed Network Intrusion Detection Systems NIDS. PCA is a common statistical method used in multivariate optimization problems in order to reduce the dimensionality of data while retaining a large fraction of the...
- Tags: Network, Northwestern University, Network Intrusion Detection, Analysis, Architecture, Principal Component Analysis, Intrusion Detection, Network Administration, Security, Networking
- White papers 2008-01-01
- A DoS Resilient Flow-Level Intrusion Detection Approach for High-Speed Networks
- Global-scale attacks like viruses and worms are increasing in frequency, severity and sophistication, making it critical to detect outbursts at routers/gateways instead of end hosts. This paper leverages data streaming techniques such as the reversible sketch to obtain HiFIND, a High-speed Flow-level Intrusion Detection system. In contrast to existing intrusion...
- Tags: Detection, DOS, Northwestern University, HiFIND, Intrusion Detection, Productivity, Cyberthreats, Routers & Switches, Security, Network Security, Networking
- White papers 2008-01-01
- Nanodisks used to encrypt information
- PhysOrg.com reports that U.S. researchers have used nanotechnology tricks to develop nanodisks which could be useful to create codes to encrypt information. This method, which conceptually is similar to barcodes, could be used for DNA tagging or tracking goods and people. Even if this looks interesting, the best part is...
- Tags: Researcher, Disk, DNA, Northeastern University, Strand, Northwestern University, Author, Biotechnology, Nanotechnology, Emerging Technologies, Roland Piquepaille
- Blog posts 2007-12-28
- Reverse Hashing for High-Speed Network Monitoring: Algorithms, Evaluation, and Applications
- A key function for network traffic monitoring and analysis is the ability to perform aggregate queries over multiple data streams. Change detection is an important primitive which can be extended to construct many aggregate queries. The recently proposed sketches are among the very few that can detect heavy changes online...
- Tags: Algorithm, Query, Northwestern University, Engineering, Networking
- White papers 2007-12-01
- New nanomaterials able to cover large areas
- Researchers at Northwestern University have developed a new nanomanufacturing technique which can be used to produce nanostructures measuring tens of square centimeters. This new technique, dubbed 'soft interference lithography' SIL, can lead to nanomaterials with optical properties mimicking some metamaterials in the natural world such as peacock feathers and butterfly...
- Tags: Technique, National Science Foundation, Researcher, Northwestern University, Property, Roland Piquepaille
- Blog posts 2007-09-12
- A Poisoning-Resilient TCP Stack
- The problem of large-scale TCP poisoning is treated: an attacker, who is able to monitor TCP packet headers in the network, can deny service to all flows traversing the monitoring point simply by injecting a single spoofed data or control packet into each of the flows. One of the entities...
- Tags: Northwestern University, TCP, Endpoint, Tcp/Ip, Networking, Security
- White papers 2007-08-18
- Classroom Model, Model Classroom: Computer-Supported Methodology for Investigating Collaborative-Learning Pedagogy
- The paper has been exploring the potential of agent-based modeling methodology for social-science research and, specifically, for illuminating theoretical complementarities of cognitive and socio-constructivist conceptualizations of learning. The current study advances the research by applying methodology to pedagogy research: It investigates individual and social factors underlying outcomes of implementing collaborative-inquiry...
- Tags: Northwestern University, Modeling, Computer, Research & Development, Real Estate, Business Operations
- White papers 2007-08-15
- A Fluid Analysis of a Utility-Based Wireless Scheduling Policy
- This paper considers packet scheduling for the downlink in a wireless network, where each packet's service preferences are captured by a utility function that depends on the total delay incurred. The goal is to schedule packet transmissions to maximize the total utility. In this setting, the paper examines a simple...
- Tags: Packet, Northwestern University, Analysis, Wi-Fi, Wireless, Engineering
- White papers 2007-05-08
- Pricing in the Shadow of Firm Turnover: ISPs During the 1990s
- This paper examines the relationship between changes in price levels and the evolution of the market for dial-up ISPs in the United States from November 1993 to January 1999. This was a period of much entry and exit and new product introduction. The paper shows that new firms enter the...
- Tags: Northwestern University, Internet Service Provider, Price, Pricing Strategy, Internet Service Providers (ISPs), Pricing, Marketing Research, Internet, Marketing
- White papers 2007-04-26
- Demonstration of a Tunable-Bandwidth White Light Interferometer Using Anomalous Dispersion in Atomic Vapor
- Off late, the design of a white-light-cavity has been proposed using negative dispersion in an intra-cavity medium to make the cavity resonate over a large range of frequencies and still maintain a high cavity build-up. This paper presents the first demonstration of this effect in a free-space cavity. The negative...
- Tags: Northwestern University, Dispersion
- White papers 2007-02-09
- An Application of Central Limit Theorem to Wide Area Network Service Level Agreement Analyses
- Managed Network Service Providers NSP supply the bandwidth, transport, equipment, and management services to connect disparate locations across the corporate enterprise. To ensure levels of quality for traffic transiting these networks, Service Level Agreements for latency, availability, and packet loss are included in the contractual arrangements between provider and customer....
- Tags: Northwestern University, Service Level Management, WANs, Business Services, Networking, It Operations, It service Management
- White papers 2006-11-09
- TV News just for you!
- With various technologies available today, you can design your own newspaper or your personal radio program. But now, scientists at Northwestern University want to design your personal TV newscast. News At Seven generates a virtual news show by collecting, editing and organizing news stories which are introduced to you by...
- Tags: News, Northwestern University
- Blog posts 2006-10-21
- Downlink Scheduling and Resource Allocation for OFDM Systems
- This paper considers scheduling and resource allocation for the downlink of a OFDM-based wireless network. During each time-slot the scheduling and resource allocation problem involves selecting a subset of users for transmission, determining the assignment of available subcarriers to selected users, and for each subcarrier determining the transmission power and...
- Tags: Resource Allocation, Northwestern University, Allocation, OFDM, Wireless
- White papers 2006-02-27
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