Model and Experimental Study of Giant Magnetostrictive Power Generation

Wang, Z. H.; Wang, B. W.; Yi, Yu; Wang, M. W.; Wang, Y. B.; Weng, Ling

doi:10.1142/s0217979210064952

Cited by 2 publications

(1 citation statement)

References 5 publications

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“…The most effective pollen for the female parents came from trees with a distance of 15-45 m (Figure 4). Moreover, wind direction significantly affects pollination [25]. In line with this view, the receivable pollens of female parent came mainly from the southern direction associated with the dominant wind in the pollination season of P. koraiensis.…”

Section: Spread Of Effective Pollenmentioning

confidence: 56%

Mode of pollen spread in clonal seed orchard of Pinus koraiensis

Feng¹,

Sui²,

Chen³

et al. 2010

JBPC

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The patterns of effective pollen dispersal and the relationships between pollen dispersal and genetic composition in Pinus koraiensis are still unclear. Hence, we investigated the mode of pollen dispersal of P. koraiensis in a clonal seed orchard in Lushuihe Forestry Bureau, Jilin Province, using SSR molecular markers tech-nique and the method of maximum likelihood. A total of 13 pairs of nuclear microsatellites po-lymorphic primers were used in the paternity analysis. We analyzed 100 progenies and 150 paternities. A total of 56 alleles were detected in 13 loci with 3-6 alleles (4.3 alleles in average) in a single locus. The primers of SsrPt_ctg7170 and SsrPt_ctg5333 had the maximum (6) and the minimum (3) alleles, respectively. The averaged values of observed heterozygosity, expected heterozygosity and polymorphism information content of experimental groups were 0.648, 0.601 and 0.533, respectively. The mating dis-tance of P. koraiensis followed an approximately normal distribution. The most effective pollen for the female parent came from male parent trees 15-45 m away with an average mating dis-tance of 32.60 m and the longest of 67.88 m. The pollen source of offspring was not random but greatly affected by the wind direction during the pollination season of P. koraiensis. These re-sults have important implications for seed or-chard design to improve the genetic quality of seeds and seed production

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Section: Spread Of Effective Pollenmentioning

confidence: 56%

Mode of pollen spread in clonal seed orchard of Pinus koraiensis

Feng¹,

Sui²,

Chen³

et al. 2010

JBPC

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Magnetostrictive iron–gallium alloy harvester with efficient two-mode AC–DC converting technology for effective vibration energy harvesting

et al. 2020

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A magnetostrictive vibration energy harvester based on an iron–gallium alloy composite cantilever beam is developed, and its capability is optimized from the aspects of bias magnetic field and the number of active layers. To solve the issue of low and irregular output voltage, it designs a converter suitable for a low-power harvester to make full use of the generated electric energy. A set of AC–DC converters with two working modes is designed by using the multiple voltage rectification method, which is able to directly drive low power load or store energy to supply power to higher power load. Through theoretical simulation and experiment, the converter’s characteristics, such as rectifier and filter characteristics, energy storage, and release process are systematically studied and tested. 1 V AC output voltage of the harvester is able to be converted into 5 V DC voltage after being processed by the converter. The proposed harvester provides an excellent vibration harvesting capacity that the AC normalized power density (power density per volume and acceleration) reaches 7.4 mW/(cm3/g). The harvesting system with the two-mode converter has achieved a high normalized DC output power vs AC input voltage of 630 µW/V. We have applied the harvester and converter for a low power electronic meter, which can work normally and display the time, temperature, and humidity in the laboratory. In addition, we have also applied the harvesting system for a higher power (1.2 W) electric fan with a universal serial bus (USB) port. After battery charging and IP5306 voltage boosting, the harvester meets the normal operation requirements of an electric fan with a USB port and it is able to operate normally.

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Model and Experimental Study of Giant Magnetostrictive Power Generation

Cited by 2 publications

References 5 publications

Mode of pollen spread in clonal seed orchard of Pinus koraiensis

Mode of pollen spread in clonal seed orchard of Pinus koraiensis

Magnetostrictive iron–gallium alloy harvester with efficient two-mode AC–DC converting technology for effective vibration energy harvesting

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