نتایج جستجو برای: micro stamping
تعداد نتایج: 116556 فیلتر نتایج به سال:
When backup operators have to handle giga bytes of information daily, they usually find the task hard enough to leave security aside. This paper consequently intends to focus on proving documents’ authenticity regarding both content and date. In the context of WORM technology, it proposes a media independent tamper evident system using original cryptographic hash function techniques and secure ...
Precise surface geometrical morphologies have been shown to improve cellular proliferation, adhesion, and functionality. It has been found that cells respond strongly to feature dimensions a fraction of their size. In this paper, soft lithography techniques were applied to microfabricate polydimethylsiloxane molds with precisely controlled micro-scale patterns. Three-dimensional polycaprolacton...
We describe a novel quadrotor micro air vehicle (MAV) system that is designed to use computer vision algorithms within the flight control loop. One main contribution is the integration of a powerful onboard computer which is a necessity for running state-of-the-art computer vision algorithms with real-time constraints. The system also features IMU-Vision synchronization by hardware time stampin...
Due to its moderate overhead and small quantization error, the time-stamping counter is currently the most precise time-measuring mechanism on Intel 80X86-based Platform. On the Pentium processors, we can simply use a conventional null benchmark to determine the time-stamping counter’s overhead accurately. Similarly, on the Pentium Pro processors, Intel also recommends the same method for measu...
This paper describes the results of a research activity conducted cooperatively by an academic and an industrial party. It presents a practical solution for and an experience in the implementation of time stamping services and their exposition to the Internet. We present the main state-of-the-art algorithms for time stamping applications, thoroughly discuss pros and cons of each technique, and ...
Nowadays, the Internet is indispensable when it comes to information dissemination. People rely on the Internet to inform themselves on current news events, as well as to verify facts. We, as a community, are quickly approaching an 'electronic information age' where the majority of information will be distributed electronically and tools to preserve this information will become essential. While...
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