A dynamic monitoring and identifying system of Fe2O3 series gas sensors for the research of electronic nose is introduced. The system has 6 channels to input 0~2.5V voltage signals, measures system temperature, makes thermoregulation for sensor with hardware and has LCD screen and voice function. The heating circuit using TL494 chip and PWM mode is realized. Offline and online identification is realized. The hardware design is based on 16 bits MSP430F149 microcontroller. The software design for digital acquisition and identification based on Windows operating system is compiled by Visual Basic 6.0. The test results show that friendly interface, simple operation, accurate data, reliability and stability are obtained. The real-time monitoring for all of the sensors in aerometry or identification can be realized by BP ANN.

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To aim at the differences in the ingredients which should be considered when different cooperative partners are chosen in virtual supply chain, the evaluation index system of upstream cooperative partner, downstream cooperative partner and logistics enterprise in networked virtual supply chain are established. Based on the differences of constructive technologies of traditional supply chain, the cooperative partner selection mode of networked virtual supply chain is established. The application of AHP in cooperative partner selection of virtual supply chain is researched. The dynamic construction mechanism of networked virtual supply chain is put forward to deal with all kinds of exceptions in the supply chain execution.

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While improving people's production, collecting, organizing, transmitting and using information way of knowledge, it is a mechanism of information service too, Structure and service have changed enormously, how to combine some advanced information technologies in the management and service applied to the library, Promote the routine with the technology , change the library and understand the traditional mode, devoted to building and regarding navigating in knowledge as the development environment which serves the idea , no longer only confine to offering documents in storage to readers, Offer usable documents on all networks, help teaching and scientific research to be meanings in which this subject explores.

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While improving people ' s production, collecting, organizing, transmitting and using information way of knowledge, it is a mechanism of information service too, Structure and service have changed enormously, how to combine some advanced information technologies in the management and service applied to the library, Promote the routine with the technology , change the library and understand the traditional mode, devoted to building and regarding navigating in knowledge as the development environment which serves the idea , no longer only confine to offering document s in storage to readers, Offer usable document s on all networks, help teaching and scientific research to be meanings in which this subject explores.

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The excited-state intramolecular proton transfer tautomerism reaction of 6-methyl-4-hydroxy pyri-midine monomers and dimmers was investigated by the ab initio method with the self-consistent reaction field with Tomas's polarized continuum mode and CIS theories at HF level on the basis of 6-311+G* and 6-31G basis set. By studying the potential energy surface, it was found that the monomer's ground-state proton transfer process together with the excited-state proton transfer process is a molecular system of four energy level, but dimmers were not, which can be used to explain the fact that UV-visible absorption and fluorescence spectra of monomer and dimers all corresponded to quinoid.

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There was, to be sure, in the Renaissance an uncanny and glittering reawakening of the classical ideal, of the noble mode of evaluating all things; Rome itself, oppressed by the new superimposed Judaized Rome that presented the aspect of an ecumenical synagogue and was called the "church," stirred like one awakened from seeming death: but Judea immediately triumphed again, thanks to that thoroughly plebeian ressentiment movement called the Reformation, and to that which was bound to arise from it, the restoration of the church—the restoration too of the ancient sepulchral repose of classical Rome.

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Such a mode of thinking and value goes against the basic regularity that defines human beings as human beings. Human beings are first of all a cultural species, and then they can be regarded as a moral species existing and evolving on earth. It is the humanistic view proposed by the school of ecological ethics that goes for non-anthropocentrism by fully considering the relationship ...

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