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Aiming at the problem of the poor execution efficiency and coarse grain monitoring, a host security monitoring system is designed and implemented in this paper, which rewrites the system service scheduler with setting the hook function in the kernel and conducts the fine grain monitoring with setting the policy in the user layer. This system has advantages such as the good execution efficiency, the...
This article describes the toxic, flammable software and hardware design methods of gases wireless monitoring network nodes based on sensor array. By collecting signals with gases sensors and receiving and emitting data with wireless sensors network, we can measure the gas concentrations. We describe the toxic and flammable gas concentration measuring circuit and illustrate the theory. We choose the...
Richard Cantillion first proposed that entrepreneurs raise the efficiency of economic resources from a low level to a high one. Entrepreneurship is a set of special entrepreneur skills (including spirits and skills), especially the abilities of innovating, taking business risks, undertaking pressures, and etc. Because of the complexity, the innovativeness, and the impossibility of direct acquisition...
The computer network represented by Internet breaks through time and space limits and regional obstacles of traditional communication modes and makes a wider communication become very easy. And meanwhile, the continuous introduction of network interconnection devices with high performance, high reliability and low cost, such as gateway, router, repeater and network interface chip, etc, also makes...
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