A New Control Technique for Multilevel Cascaded H-Bridge Inverters

Multi cell converters are one of the alternative topologies for medium-voltage industrial drives. For an application modulation (PWM) rectifier as front end Multi level cascaded H-bridge (CHB) converters have been presented as a good solution for high-power applications. The choice of single-phase PWM rectifiers for the input of the cells results in a reduced number of power switches and a simpler input transformer than the three phase equivalent. However, its control is not as straightforward. In this paper, the steady-state power balance in the cells of a single-phase two-cell CHB is studied. The ability to receive active power network or to deliver active power to the grid in each cell is analyzed according to the DC-link voltage and the desired output AC voltage value. Simulation results are shown to validate the presented analysis

Single Phase Inverter Topology with A Voltages Topology Chain-Connected Energy Store

MIC focus mainly on single-phase power systems (e.g., 240V), and are often limited to collecting power activities. In this way, the converter must transmit the normal power and part of the power switch time by multiplying the flow line, while it will always be forced into the PV module. This indicates the movement of energy as opposed to the unit time of the PV range, and the location hidden between the curves indicating the ground strength required for inverter storage. To display this exchange by switching, a three-port frame can be used. The use of energy storage in a double line that doubles the power difference means separating existing plans. This introduces another Geography that puts a barrier to keeping the size in alignment associated with the square of the line connector. This facility provides free electrical volume control, accurate exchange of all semiconductor devices, and dual finished network work

Effect of paclobutrazol and sucrose on in vitro cormel formation in gladiolus

Studies with excised shoots of six gladiolus cultivars viz., Bellariana, Blue Moon, Cream White, Friendship, Her Majesty and Top Brass indicated that paclobutrazol enhanced early cormel initiation and development. The interaction between paclobutrazol and sucrose was significant for cormel size. Supplementation of 10 mg L–1 paclobutrazol and 120 g L–1 sucrose to Murashige and Skoog’s medium favored formation of bigger cormels. Among the cultivars response to exogenous sucrose supplementation varied significantly and absence of paclobutrazol produced longer leaves, roots and smaller cormels

Influence of in vitro preconditioning of citrus microshoots with paclobutrazol on ex vitro survival

The influence of the in vitro conditioning and rooting of the microcuttings in different basal media viz., Murashige and Skoog and Gamborg supplemented with various concentrations of paclobutrazol (0.25-4.0 mg/1) on their in vivo establishment and growth was investigated using four citrus species viz., C. reticulata Blanco (Khasi Mandarin), C. volkameriana Ten, and Pasq, C. reshni Tanaka (Cleopatra Mandarin), and C. nobilis X C. deliciosa Tenure (Kinnow). The inclusion of paclobutrazol in the medium had a significant influence on in vivo growth especially in relation to height. Paclobutrazol reduced the stem and root growth but at 0.75 and 1.0 mg/1 more persistent leaves and new leaves on established plants were recorded. Stomata of leaves cultured in medium supplemented with paclobutrazol showed smaller stomatal apertures. Among the species, Kinnow and C. volkameriana showed the maximum leaf area. The optimum concentration of paclobutrazol for maximum establishment was found to be 1 mg/1 paclobutrazol (94.6% to 97.2 %) in all the species

High-throughput multiplex microsatellite marker assay for detection and quantification of adulteration in Basmati rice (Oryza sativa)

Basmati rice is a very special type of aromatic rice known world-wide for its extra long grains and pleasant and distinct aroma. Traditional Basmati rice cultivars, confined to Indo-Gangetic regions of the Indian subcontinent, are often reported to be adulterated with crossbred Basmati varieties and long-grain non-Basmati varieties in the export market. At present, there is no commercial scale technology to reliably detect adulteration. We report here a CE-based multiplex microsatellite marker assay for detection as well as quantification of adulteration in Basmati rice samples. The single-tube assay multiplexes eight microsatellite loci to generate variety-specific allele profiles that can detect adulteration from 1% upwards. The protocol also incorporates a quantitative-competitive PCR-based analysis for quantification of adulteration. Accuracy of quantification has been shown to be ±1.5%. The experiments used to develop and validate the methodology are described

Investigation of anti-arthritic potential of Acacia torta (roxb.) craib

Background: Acacia torta (Roxb.) Craib, traditionally used in respiratory, circulatory, digestive, musculo-skeletal, skin diseases etc., Numerous plants of this genus have been used in folk medicine to treat stomach pain, cough, diarrhoea, piles, sore-throat; as astringent, antipyretic, antimicrobial, antimalarial, antiviral, anti-oxidant and as anti-hypertensive. Hence, the present study was aimed to investigate the anti‐arthritic potential of Acacia Torta (Roxb.) Craib, since, systematic study of this plant has not been carried out.Methods: Ethanol and water were used to prepare stem extract by soxhlet extraction method. The extract is evaluated by using Freund’s complete adjuvant induced arthritis in albino wistar rats at the dose of 100mg/kg/p.o. and 400mg/kg/p.o. and indomethacin at 10mg/kg were used for the study.Results: The hydro alcoholic extract of the stem Acacia torta (Roxb.) Craib in crude form contains phytoconstituents like saponins, tannins, steroids, and triterpenes. The reference standard, Indomethacin at the dose of 10 mg/kg showed significant inhibition of paw edema by 71.61% (P <0.001), as compared to the vehicle control. Treatment with the hydro alcoholic extract of stem Acacia Torta at doses of 100 and 400 mg/kg caused significant inhibition of paw edema by 59.26% (P <0.001) and 69.14% (P <0.001) respectively, was observed on 21st day, as compared to the vehicle control.Conclusions: The data obtained from the present study indicated that several factors may contribute to the anti-inflammatory and anti-arthritic activity of hydro alcohol extract of the stem Acacia torta (Roxb.) Craib. adjuvant induced arthritis showed inhibition of prostaglandin synthesis might be the major mechanism by which the hydro alcoholic extract of the stem Acacia torta (Roxb.) Craib exerts anti-inflammatory and arthritic activity