24 research outputs found

    MEM Based Hand Gesture Controlled Wireless Robot

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    The robustness of MEMS based Gesture Controlled Robot is a kind of robot that can be by our hand gestures rather than an ordinary old switches or keypad. In Future there is a chance of making robots that can interact with humans in a natural manner. Hence our target interest is with hand motion-based gesture interfaces. An innovative Formula for gesture recognition is developed for identifying the distinct action signs made through hand movement. A MEMS Sensor was used to carry out this and also an Ultrasonic sensor for convinced operation. In order to full-fill our requirement a program has been written and executed using amicrocontroller system. Upon noticing the results of experimentation proves that our gesture formula is very competent and it’s also enhanced the natural way of intelligence and also assembled in a simple hardware circuit

    Search for gravitational waves from Scorpius X-1 in the second Advanced LIGO observing run with an improved hidden Markov model

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    We present results from a semicoherent search for continuous gravitational waves from the low-mass x-ray binary Scorpius X-1, using a hidden Markov model (HMM) to track spin wandering. This search improves on previous HMM-based searches of LIGO data by using an improved frequency domain matched filter, the J-statistic, and by analyzing data from Advanced LIGO's second observing run. In the frequency range searched, from 60 to 650 Hz, we find no evidence of gravitational radiation. At 194.6 Hz, the most sensitive search frequency, we report an upper limit on gravitational wave strain (at 95% confidence) of h095%=3.47×10-25 when marginalizing over source inclination angle. This is the most sensitive search for Scorpius X-1, to date, that is specifically designed to be robust in the presence of spin wandering. © 2019 American Physical Society

    Erratum: "A Gravitational-wave Measurement of the Hubble Constant Following the Second Observing Run of Advanced LIGO and Virgo" (2021, ApJ, 909, 218)

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    Not AvailableRhizome rot of turmeric caused by Pythium aphanidermatum is a major threat to turmeric-cultivating areas of India. This study intends to evaluate the performance of fluorescent pseudomonads against Rhizome rot disease and understand the resistance mechanism in Turmeric plants. Fluorescent pseudomonads were screened against Pythium aphanidermatum using dual culture. Selected strains were evaluated for the performance of growth promoting attributes and the presence of antibiotic genes through PCR analysis. Strain FP7 recorded the maximum percent inhibition of P. aphanidermatum under in vitro conditions. Strains FP7 and TPF54 both increased plant growth in turmeric plants in vitro. Strain FP7 alone contained all the evaluated antibiotic biosynthetic genes. Talc and liquid-based formulations were prepared with effective strain and tested for its biocontrol activities under both glasshouse and field conditions. Enzymatic activities of the induced defense enzymes such as PO, PPO, PAL, CAT and SOD were estimated and subjected to spectrophotometric analysis. A combination of rhizome dip and soil drench of FP7 liquid formulation treatment remarkably recorded the minimum disease incidence, higher defense enzymes, maximum plant growth and yield under glasshouse and field conditions. Application of strain FP7 increased the defense molecules, plant growth and yield in turmeric plants thereby reducing the incidence of rhizome rot disease. Moreover, this study has the potential to be adopted for sustainable and eco-friendly turmeric productionNot Availabl

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    Not AvailableIn the present study, efforts were made to understand the resistant mechanism mediated by biocontrol agents in tomato plants against Helicoverpa armigera. Defense enzymes viz. peroxidase, phenylalanine ammonia-lyase, polyphenol oxidase, catalase, super oxide dismutase were analysed by Polyacrylamide Gel Electrophoresis (PAGE). SDS-PAGE was used for studying the protein profile as well as Western Blotting for chitinase. Application of a mixture of B. subtilis and B. bassiana significantly enhanced the defense-related enzymes. The results showed higher induction of PO and PPO in plants treated with combination of B2 + EPC8 than the plants treated with individual strains, chemical and untreated controls. In addition, B2 + EPC8 combination showed a greater accumulation of CAT and SOD which plays a vital role in induced resistance. Western blot analysis of chitinase revealed the induction chitinase isoform (29 KDa) in tomato plants treated with a mixture of B2 + EPC8 strains against fruit borer pest. The combined application of bioformulation also increased the accumulation of phenol as well as the defence related proteins in tomato plants. Moreover, the outcome of the present study has a potential to be used for sustainable and eco-friendly tomato production.Not Availabl

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    Not AvailableThe genetic diversity of fluorescent pseudomonads associated with the turmeric (Curcuma longa L.) rhizosphere of Tamil Nadu, India was analyzed. Selected isolates were identified by ITS sequence analysis. Based on 16S rRNA sequence similarity, the isolates were identified as Pseudomonas fluorescens, P. stutzeri and Pseudomonas sp. The genetic variability and relationship among 15 fluorescent pseudomonads were analysed using 15 Random Amplified Polymorphic DNA (RAPD) and 13 Inter-Simple Sequence Repeat (ISSR) markers. Results revealed that ISSR markers were more efficient than the RAPD assay with regards to polymorphism detection. Also, total amplicons, the average number of polymorphic loci per primer, average polymorphic information content (PIC), marker index (MI) values and effective multiplex ratio (EMR) were more for ISSR than for RAPD. The similarity coefficients of fluorescent pseudomonads based on RAPD and ISSR markers ranged from 50.00 to 75.00 and 49.00 to 85.00 per cent respectively. Overall, we concluded that ISSR was found to be better than RAPD in assessing genetic diversity among fluorescent pseudomonads.Not Availabl

    MEM Based Hand Gesture Controlled Wireless Robot

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    The robustness of MEMS based Gesture Controlled Robot is a kind of robot that can be by our hand gestures rather than an ordinary old switches or keypad. In Future there is a chance of making robots that can interact with humans in a natural manner. Hence our target interest is with hand motion-based gesture interfaces. An innovative Formula for gesture recognition is developed for identifying the distinct action signs made through hand movement. A MEMS Sensor was used to carry out this and also an Ultrasonic sensor for convinced operation. In order to full-fill our requirement a program has been written and executed using amicrocontroller system. Upon noticing the results of experimentation proves that our gesture formula is very competent and it’s also enhanced the natural way of intelligence and also assembled in a simple hardware circuit

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    Not AvailableTurmeric rhizome rot is a devastating disease posting the major threat to turmeric cultivation. Plant growthpromoting rhizobacteria (PGPR) Pseudomonas fluorescens strain FP7 was found to exhibit disease reduction and plant growth promotional activity in various crop plants in our previous studies. In this study, efforts were made to evaluate the efficacy of P. fluorescens (FP7) bioformulations against rhizome rot disease in turmeric plants. Among the FP7 bioformulations tested, a combination of rhizome dip and soil drench of FP7 liquid formulation recorded the minimum disease incidence under glasshouse (19.00%) and field conditions (10.18% and 13.29% in the trial I and trial II respectively). Furthermore, the 2D-PAGE analysis was performed to elucidate the molecular responses of tripartite interaction between host-pathogen-bioagent through protein profiling. A total of 12 differentially expressed proteins were identified and mass spectrometry (MS) analysis revealed that proteins such as tryptophan synthase beta subunit-like, phosphoglycerate kinase, cellulose synthase 6 isoform, ATP synthase subunit beta, cysteine-rich peptide, ribosomal protein S3, clathrin assembly protein and disease resistance protein RPP13-like were found to be differentially regulated. The differentially expressed proteins during tripartite interaction might be directly or indirectly involved in disease resistance in turmeric plants. This study provides an initial insight into the molecular mechanism of tripartite interaction between host-pathogen - bioagent in turmeric plantsNot Availabl

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