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Return-Oriented Programming (ROP) is a technique which leverages the instruction gadgets in existing libraries/executables to construct Turing complete programs. However, ROP attack is usually composed with gadgets which are ending in ret instruction without the corresponding call instruction. Based on this fact, several defense mechanisms have been(More)
To ensure the security of the footbridge, its sympathetic vibration character needs usually to be controled. In this paper, the dynamic vibration model is built with concentrated load method, finite element method is used for qualitative analysis of the footbridge. By the bridge mode simulation the relationships between the sympathetic vibration and the(More)
Professor GAO Yuchun is considered as the key successor of GAO's academic school of acupuncture and moxibustion in Yanzhao region. Professor GAO's clinical experience of, "sequential acupuncture" is introduced in details in this article. In Professor GAO's opinions, appropriate acupuncture sequence is the key to satisfactory clinical effects during(More)
OBJECTIVE A skin-potential variation (SPV) insensitive dry electrode is developed to remove the interference of SPV. METHODS Based on a conventional microneedles array-based electrode, a layer of Parylene membrane is coated at the root of microneedles to insulate the electrode from the corneum layer. Only tips of the needles are exposed to make it can(More)
An eight-class SSVEP-based BCI system was designed and demonstrated in this study. To minimize the complexity of the traditional equipment and operation, only one work electrode was used. The work electrode was fabricated in our laboratory and designed as a claw-like structure with a diameter of 15 mm, featuring 8 small fingers of 4mm length and 2 mm(More)