Restorer

The development of hybrid rice holds great potential for increasing yields, but there are limitations on how hybrid rice seed can be produced. Exploiting rice male sterility genes is one way to facilitate hybrid seed production, but high yield and vigor in a hybrid depend on heterosis resulting from the genetic diversity of the male and female parents. The objective of this research was to create greater genetic diversity in male sterile, or A lines, maintainer lines, or B lines, and restorer lines, or R lines, for hybrid seed production by inducing mutations using gamma radiation. New A and R lines were created by exposing CP304 hybrid rice to acute gamma irradiation at doses of 0, 100, 200 and 300 Gy. New B lines were developed by taking the F1 generation of crosses between three B lines (IR68886B, IR68888B and IR68899B) and an R line (SPR90119R) and exposing the plants at the booting stage to chronic gamma irradiation at a dose of 416 Gy at the Nuclear Technology Research Center,...

To restore the load voltage, Dynamic Voltage Restorer (DVR), which is installed between the supply and a sensitive load, should inject voltage and active power from DVR to the distribution system during voltage sag. Due to the limit of energy storage capacity of DC link, it is necessary the minimize energy injection from DVR. In this paper the techniques of the supply voltage sag compensation in a distribution feeder are presented. In addition, a concept of inter-line dynamic voltage restorer (IDVR) that two DVRs in two different voltage distribution system are connected to a common DC link capacitor is proposed. One of these two DVR (low voltage) operates in voltage sag compensation mode and a novel control technique uses to inject minimum energy from DC link capacitor to low voltage distribution system. The other DVRs (medium voltage) controls the voltage of DC link capacitor so that energy flows from medium voltage distribution system to the DC link capacitor. Simulation results ...

General and specific combining ability effects were estimated from a 5 line × 8 tester crosses to explore the genetic behavior of CMS and restorers in rice. The variance for GCA and SCA showed predominance of non-additive gene action for all the ten morpho-physiological traits. The estimates of GCA effects revealed that none of the parent was general combiner for all the traits in desired direction. Gan46A and BR827R were good general combiners for higher grain yield coupled with earliness, and IR46R and BR168R was good general combiner for grain yield and lateness in maturity. Good x poor general combiners (Gan46A × Gui99R) for grain yield produced the best specific cross for higher grain yield coupled with earliness, longer panicle, panicles/plant, filled grains/panicle and less sterility (%). Additive × additive, additive × dominance and dominance × dominance gene interactions were involved in deriving good specific cross for grain yield.DOI: http://dx.doi.org/10.3329/bjpbg.v20i1...

Interline Dynamic Voltage Restorer (IDVR) is an optimum solution to compensate voltage sag in multiple lines. The IDVR consisting of two or more DVRs connected to different feeders in a power system sharing a common DC link energy. This paper presents the hardware implementation of novel bidirectional voltage sag compensation by the IDVR in multiple feeders at same instance. A two line feeder power system with IDVR installed is considered. The IDVR is implemented using two VSI with filter. The control system of IDVR is developed using DSPACE.

The power distributing system based on DVR is integrated by Super conducting Fault Current Limiter gives a viable solution to attain the stabilization of voltage magnitudes where the sensitive load and voltage sag effects are minimized. Over different compensation devices, the vastly recognized multi-use dynamic voltage restorer is integrated with superconducting fault current limiter to get improved features for power quality. In this paper, novel DVR integrated with SFCL was developed effectively to improve the bus voltage as well as to suppress the fault current. It is observed that the capacity of proposed DVR along with SFCL is decreased with increased voltage at the bus when compared with single DVR method. The cost also less for this proposed method than the single DVR system. It is also observed that output power compensated and also total harmonic distortions can be reduced in this proposed method. In the proposed system by adopting the tool like MAT LAB / SIMULINK the disadvantages of single DVR method like using inverter for three level voltage source, high rating of filters, poor efficiency with respect to system performance etc., are resolved with improvised power along with reduction in total harmonic distortions.

Abstract: this document seeks to describe and collect the treatments carried out in the barn of Lamas de Abade. The reason for the work and its transfer is due to the works of the AVE on its arrival in Santiago de Compostela. The work carried out consisted of a diagnosis and assessment of the state of conservation, cleaning and disassembly-reassembly of all the preserved parts. Damaged elements were also renewed.

Interline Dynamic Voltage Restorer (IDVR) is an optimum solution to compensate voltage sag in multiple lines. The IDVR consisting of two or more DVRs connected to different feeders in a power system sharing a common DC link energy. This paper presents the hardware implementation of novel bidirectional voltage sag compensation by the IDVR in multiple feeders at same instance. A two line feeder power system with IDVR installed is considered. The IDVR is implemented using two VSI with filter. The control system of IDVR is developed using DSPACE.