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Emitter clogging, a phenomenon commonly seen in reclaimed wastewater drip irrigation systems, is a severe obstacle to the wide applications and popularization of the irrigation technology. Some experiments showed that the emitter clogging was tightly related to biofilms formation attached to the irrigation system. In this paper, two types of wastewaters(More)
Drip irrigation is the most effective and reliable method for reclaimed wastewater irrigation. Emitter clogging is the major problem for extending the drip irrigation technology. The existence of suspended particulates in irrigation water is the main reason for the emitter clogging. However, the reclaimed wastewater quality is extremely complex, and there(More)
This paper presents a 5 bit charge-redistribution phase domain ADC (PhADC) implemented in 0.18 μm CMOS technology for low power FSK/PSK demodulation. An IQ-assisted conversion algorithm is proposed to avoid the need for an accurate linear combination of in-phase (I) and quadrature (Q) signals with various scaling factors in a conventional(More)
The aim of this brief is to point out the importance of co-designing electrically-short antenna-electronics interfaces as a way to improve the system performance. This can be achieved if both the antenna and electronic circuit designer have a common optimization target. In this brief, the co-design principles are presented for antenna systems in the(More)
A phase-domain analog-to-digital converter (PhADC) is a promising alternative to a pair of amplitude-domain in-phase and quadrature (IQ) ADCs for low power FSK/PSK demodulation, but the fundamental benefits and limitations of the PhADC over the IQ ADC have not been precisely quantified as yet. In this paper, analytical methods are proposed to(More)
In order to dramatically reduce the size of energy harvesting sensor nodes, it's necessary for a receiver to share the same antenna with an energy harvester. However, the standard 50Ω power matched interface is only designed for the connection of the antenna and the LNA, rather than taking into account the presence of the energy harvester. This paper(More)
An analytical method is introduced in the paper for the static characteristics of the cylindrical-spherical joint surfaces, based on fundamental parameters of the joint, and which has validated by the comparison between a case study and experimental results. The results show that this method is correct and feasible.
Based on the comprehensive energy band structure of the strained-silicon and solving the 2D Poisson equation of the potential distribution in the channel, an analytical threshold voltage model of the strained surrounding-gate nMOSFET is developed. The dependence of the threshold voltage on the gate length, channel doping concentration and Ge content of the(More)
The aim of this brief is to point out the importance of codesigning electrically short antenna-electronics interfaces as a way to improve the system performance. This can be achieved if both the antenna and electronic circuit designer have a common optimization target. In this brief, the codesign principles are presented for antenna systems in the receiving(More)