environment such as full of high energy rays and extreme temperature environment. [2][3][4][5][6][7] For example, radiation harden transistors are necessary for ICs applied in the space and nuclear energy industries. [5][6][7] Recently, cryogenic electronics have received more and more attentions along with the rising of quantum computing and space exploration, in which low-temperature stable operation is even more important than performance of the integrated circuits. [8] Specifically, readout and control circuitry should be monolithic integrated with the quantum processor, which means that they are supposed to operate at low temperature. [9] Therefore, ICs with excellent temperature stability are always demanded to reduce the system noise and ensure accuracy in the control and readout of the qubits. [10] However, it is a big challenge to realize temperature stable ICs since the channel conductance is extremely sensitive to temperature in the semiconductor-based transistors owing to strong temperature dependent carrier scattering and thermal excitation. [11] Carbon nanotube has been considered as a promising channel material to construct high-performance CMOS FETs for the future electronics because of its ultra-thin body, extremely high carrier mobility and symmetric band structure. [12][13][14][15] The development of CNT electronics is strongly dependent on material, and high semiconducting purity and high density aligned CNT arrays with wafer-scale uniformity are the ideal materials for high-performance CNT FETs and ICs. [13,14] However, the most mature CNT material for electronics is solution-derived randomly oriented CNT film which exhibits high semiconducting purity up to 99.9999% and uniformity across large area. [17] Large scale or high-performance ICs have been demonstrated based on randomly oriented CNT film. [18][19][20] However, FETs and ICs built on network CNT film cannot reach the predicted performance due to the random orientation distribution of CNTs, and then are not possible to compete with Si CMOS ICs on performance. [21] An effective way to make network CNT film-based electronics available is to explore the special performances potentially applied in special fields, for example, radiation harden, [22] flexible electronics, [23] cryogenic electronics and so on. Compared with silicon-based FETs, the CNT FETs are more suitable to operate at extreme temperature owing to the Cryogenic electronics are attracting more and more attentions owing to the rising of space exploration and quantum computing, in which lowtemperature stable operation is even more concerned than performance of the integrated circuits (ICs). As a promising semiconducting material, carbon nanotube (CNT) has been extensively explored on its low-temperature transport characteristics, but the cryogenic electronics application of CNT transistors and ICs has seldom been demonstrated. In this work, the lowtemperature operation of field-effect transistors (FETs) and ICs built on solution-derived high semiconducting purity randomly orie...

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A continuous stirred tank reactor (CSTR), modelled by two nonlinear ordinary equations with two manipulable inputs, is on-line identified and controlled using neural networks. The enhanced leamhg algorithm introduced in [5], is used for training the neural network. The multivariable nonlinear controller is derived from a LJAPNOW function, which can ensure that the whole system be globally asymptotically stable at both the stable stationary points and the unstable stationary points. An inverse model of the CSTR, which is on-line built with neural network, serves as the predictor of the control variables. The temperature and concentration in CSTR can be maintained stable around the setting values in spite of the disturbances of the inlet concentration and inlet temperature of the reactants.

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