The Experts below are selected from a list of 183 Experts worldwide ranked by ideXlab platform
Xiang Deng - One of the best experts on this subject based on the ideXlab platform.
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Hardware Design of Tuber Electrical Resistance Tomography System Based on the Soil Impedance Test and Analysis
MATEC Web of Conferences, 2016Co-Authors: Xiang Deng, Zili Jiang, Yu TangAbstract:The hardware design of Tuber electrical resistance tomography (TERT) system is one of the key research problems of TERT data acquisition system. The TERT system can be applied to the Tuber growth process monitoring in agriculture, i.e., the TERT data acquisition system can realize the real imaging of Tuber Plants in soil. In TERT system, the imaging Tuber and soil multiphase medium is quite complexity. So, the impedance test and analysis of soil multiphase medium is very important to the design of sensitive array sensor subsystem and signals processing circuits. In the paper, the soil impedance test experimental is described and the results are analysed. The data acquisition hardware system is designed based on the result of soil medium impedance test and analysis. In the hardware design, the switch control chip ADG508, the instrumentation amplifier AD620 and programmable amplifier AD526 are employed. In the meantime, the phase locked loop technique for signal demodulation is introduced. The initial data collection is given and discussed under the conditions of existing Plant Tuber and no existing Plant Tuber. Conclusions of the hardware design of TERT system are presented.
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Research on Excitation & Measurement Strategy of Tuber Electrical Resistance Tomography System
Applied Mechanics and Materials, 2014Co-Authors: Xiang Deng, Zhao Dong, Lu ChenAbstract:The non-invasion electrical process tomography of Plant Tuber or root is a new research field in the accurate cultivation of Plants. Tuber Electrical Resistance Tomography (TERT) is aimed to extend the application of the technology into agriculture, which can help improving and breeding new varieties of the crops. This paper mainly studies excitation & measurement strategy. Especially the influences on distribution of sensitive field brought by the width and numbers of the array electrodes in the soil environment are analyzed. Besides, the relationship between the electrical conductivity and the measured boundary voltages is also discussed.
Lu Chen - One of the best experts on this subject based on the ideXlab platform.
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Research on Excitation & Measurement Strategy of Tuber Electrical Resistance Tomography System
Applied Mechanics and Materials, 2014Co-Authors: Xiang Deng, Zhao Dong, Lu ChenAbstract:The non-invasion electrical process tomography of Plant Tuber or root is a new research field in the accurate cultivation of Plants. Tuber Electrical Resistance Tomography (TERT) is aimed to extend the application of the technology into agriculture, which can help improving and breeding new varieties of the crops. This paper mainly studies excitation & measurement strategy. Especially the influences on distribution of sensitive field brought by the width and numbers of the array electrodes in the soil environment are analyzed. Besides, the relationship between the electrical conductivity and the measured boundary voltages is also discussed.
Yu Tang - One of the best experts on this subject based on the ideXlab platform.
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Hardware Design of Tuber Electrical Resistance Tomography System Based on the Soil Impedance Test and Analysis
MATEC Web of Conferences, 2016Co-Authors: Xiang Deng, Zili Jiang, Yu TangAbstract:The hardware design of Tuber electrical resistance tomography (TERT) system is one of the key research problems of TERT data acquisition system. The TERT system can be applied to the Tuber growth process monitoring in agriculture, i.e., the TERT data acquisition system can realize the real imaging of Tuber Plants in soil. In TERT system, the imaging Tuber and soil multiphase medium is quite complexity. So, the impedance test and analysis of soil multiphase medium is very important to the design of sensitive array sensor subsystem and signals processing circuits. In the paper, the soil impedance test experimental is described and the results are analysed. The data acquisition hardware system is designed based on the result of soil medium impedance test and analysis. In the hardware design, the switch control chip ADG508, the instrumentation amplifier AD620 and programmable amplifier AD526 are employed. In the meantime, the phase locked loop technique for signal demodulation is introduced. The initial data collection is given and discussed under the conditions of existing Plant Tuber and no existing Plant Tuber. Conclusions of the hardware design of TERT system are presented.
Jiwan P. Palta - One of the best experts on this subject based on the ideXlab platform.
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qtl mapping of potato chip color and Tuber traits within an autotetraploid family
Molecular Breeding, 2017Co-Authors: Kyle Rak, Paul C. Bethke, Jiwan P. PaltaAbstract:Cultivated potato (Solanum Tuberosum L.) is a highly heterozygous autotetraploid crop species, and this creates challenges for traditional line development and molecular breeding. Recent availability of a single-nucleotide polymorphism (SNP) array with 8303 features and software packages for linkage and association mapping in autotetraploid species present new opportunities for the identification of genomic regions that contribute to high-value traits in cultivated potato. A biparental tetraploid potato population was evaluated across three field seasons and storage trials in order to identify quantitative trait loci (QTL) for multiple Tuber traits including fried chip color after 5.5–7.2 °C storage. Tetra-allelic dosage information was used to construct a genetic linkage map that covered 1041 cM and contained 2095 SNP markers with a median marker interval of 0.4 cM. A total of 41 QTL were identified for flower color, Tuber yield, Tuber number per Plant, Tuber weight, Tuber size, and chip color after various storage regimes. Moderate effect QTL for chip color at 3 months were identified that co-localized with candidate genes vacuolar invertase (VInv), invertase inhibitor (INH2), and apoplastic invertase (Inv ap -b). A separate QTL for chip color after 6 months of storage was identified in the short arm of chromosome 2, and this locus may contribute to variation in senescent sweetening resistance. QTL for Tuber weight, length, and width co-localized with a known QTL for Plant maturity on chromosome 5. Genome-wide association mapping using a polyploid model detected the Tuber size QTL and identified a number of candidate SNPs, but was unable to detect markers significantly associated with chip color.
Zhao Dong - One of the best experts on this subject based on the ideXlab platform.
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Research on Excitation & Measurement Strategy of Tuber Electrical Resistance Tomography System
Applied Mechanics and Materials, 2014Co-Authors: Xiang Deng, Zhao Dong, Lu ChenAbstract:The non-invasion electrical process tomography of Plant Tuber or root is a new research field in the accurate cultivation of Plants. Tuber Electrical Resistance Tomography (TERT) is aimed to extend the application of the technology into agriculture, which can help improving and breeding new varieties of the crops. This paper mainly studies excitation & measurement strategy. Especially the influences on distribution of sensitive field brought by the width and numbers of the array electrodes in the soil environment are analyzed. Besides, the relationship between the electrical conductivity and the measured boundary voltages is also discussed.