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Wyszukujesz frazę "Singh, Y." wg kryterium: Wszystkie pola

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    Wyświetlanie 1-11 z 11
    Tytuł:
    Estimation of leaf area in wheat using linear measurements.
    Autorzy:
    Chanda, S.V.
    Singh, Y.D
    Powiązania:
    https://bibliotekanauki.pl/articles/2198850.pdf
    Data publikacji:
    2002-12-22
    Wydawca:
    Instytut Hodowli i Aklimatyzacji Roślin
    Opis:
    In order to find a rapid, reliable method for estimating leaf area in wheat, field experiments were conducted with three wheat (Triticum aestivum L.) cultivars viz. Sonera, Lok-1 and Raj-1555. On the basis of correlation and regression analyses, the product of length and maximum width (LW) was found to be the best independent variable for determining the leaf area. The Y intercept had little affect on leaf area calculation and hence leaf area in wheat can be calculated by the simple equation Y = 0.75 LW. During the entire growth period leaf area and leaf dry weight was closely correlated but the logarithmic equation fitted better than the linear equation. Leaf area and total plant weight did not show any significant linear correlation.
    Źródło:
    Plant Breeding and Seed Science; 2002, 46, 2; 75-79
    1429-3862
    2083-599X
    Pojawia się w:
    Plant Breeding and Seed Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Relationship between water content and grain weight in developing wheat grains.
    Autorzy:
    Chanda, S. V.
    Singh, Y.D.
    Powiązania:
    https://bibliotekanauki.pl/articles/2198878.pdf
    Data publikacji:
    2002-06-23
    Wydawca:
    Instytut Hodowli i Aklimatyzacji Roślin
    Tematy:
    grain growth analysis
    water content
    biphasic regression analysis
    Triticum aestivum
    Opis:
    Grains from basal (4th), central (8th) and apical (12th) spikelets of a wheat (Triticum aestivum L.) cultivar Lok-1 were investigated for their fresh weight, dry weight and water content. Each spikelet had 3 grains and so in all 9 grains were analyzed. Grain dry weight data was fitted to polynomial equations and biphasic linear regression analysis. The experiments described here indicated that grains having maximum water content had maximum grain weight and vice versa. Maximum water content and maximum grain weight showed a highly significant linear correlation (P < 0.001). It is suggested that in genetic manipulation in wheat, maximum water content can be a used as a reliable criterion to help in selection for final grain weight.
    Źródło:
    Plant Breeding and Seed Science; 2002, 46, 1; 55-60
    1429-3862
    2083-599X
    Pojawia się w:
    Plant Breeding and Seed Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Source-sink relationships and grain weight at different positions within wheat spike.
    Autorzy:
    Chanda, S.V.
    Singh, Y.D.
    Powiązania:
    https://bibliotekanauki.pl/articles/2198848.pdf
    Data publikacji:
    2002-12-22
    Wydawca:
    Instytut Hodowli i Aklimatyzacji Roślin
    Tematy:
    grain growth rate
    grain filling duration
    source-sink
    Triticum aestivum
    Opis:
    The response in growth and final weight of grains from basal, middle and apical spikelets to increases in assimilate availability was studied by modifying source-sink relationships during the grain growth period in a wheat cultivar Lok-1. The source-sink relationship was altered in 1500 plants by removing spikelets in various positions i.e. either apical, middle or basal spikelets were pinched off on the day of anthesis. The final grain weight, grain growth rate and grain filling period (duration) was significantly affected by increasing the source capacity per grain by trimming i.e. removing some spikelets. The final grain weight was positively significantly correlated with grain growth rate while it was significantly but inversely correlated with grain filling duration. A clear effect of position of grain in spikelet and its (spikelet) position on the spike could be visualized. The results imply that there is a possibility that the availability of photosynthates is limiting and does not fully satisfy grain growth requirements. It is suggested that in this cultivar during post-anthesis period, grain yield is source limited.
    Źródło:
    Plant Breeding and Seed Science; 2002, 46, 2; 67-73
    1429-3862
    2083-599X
    Pojawia się w:
    Plant Breeding and Seed Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Towards use of dijkstra algorithm for optimal navigation of an unmanned surface vehicle in a real-time marine environment with results from artificial potential field
    Autorzy:
    Singh, Y.
    Sharma, S.
    Sutton, R.
    Hatton, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/116058.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    autonomous vehicles
    dijkstra’s algorithm
    Unmanned Surface Vehicle (USV)
    port of portsmouth
    Artificial Path Planning (APF)
    Artificial Potential Field
    real-time marine environment
    optimal navigation
    Opis:
    The growing need of ocean surveying and exploration for scientific and industrial application has led to the requirement of routing strategies for ocean vehicles which are optimal in nature. Most of the op-timal path planning for marine vehicles had been conducted offline in a self-made environment. This paper takes into account a practical marine environment, i.e. Portsmouth Harbour, for finding an optimal path in terms of computational time between source and end points on a real time map for an USV. The current study makes use of a grid map generated from original and uses a Dijkstra algorithm to find the shortest path for a single USV. In order to benchmark the study, a path planning study using a well-known local path planning method artificial path planning (APF) has been conducted in a real time marine environment and effectiveness is measured in terms of path length and computational time.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2018, 12, 1; 125-131
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of flowering time and fruiting pattern on yield components of three cotton genotypes.
    Autorzy:
    Rabadia, V. S.
    Thaker, V.S.
    Singh, Y.D.
    Powiązania:
    https://bibliotekanauki.pl/articles/2199021.pdf
    Data publikacji:
    2006-06-22
    Wydawca:
    Instytut Hodowli i Aklimatyzacji Roślin
    Tematy:
    active boll load
    cotton
    dry matter partitioning
    flowering time
    fruiting pattern
    yield components
    Opis:
    Cotton genotypes H-6, H-4 (Gossypium hirsutum L.) and V797 (Gossypium herbaceum L.) were analyzed for fruiting pattern (i.e. distribution of flowers, numbers of bolls and its dry weight on different branches) and percent (%) dry matter partitioning into the different components of the boll (seed, fiber and boll wall). Percent distribution of flowers, bolls and dry weight within the plant varied distinctly among the genotypes studied. In higher yielding genotypes (H-4 and H-6), during the initial stage of plant growth for about 10 days, 60-80% of dry matter was partitioned into boll wall and decreased up to 12-15% as the boll developed (nearly 45 days). Contrary to this, seed and fiber accumulated dry matter during development (60-75%). Abscission rate increased with an increase in boll load in all three genotypes and it was significantly higher in the lower yielding variety, V797. A reduction in boll and seed number, seed and fiber dry weight was observed with the progress in the season and was significantly higher in V797 as compared to H-4 and H-6.
    Źródło:
    Plant Breeding and Seed Science; 2006, 53; 17-26
    1429-3862
    2083-599X
    Pojawia się w:
    Plant Breeding and Seed Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Physiological and biochemical changes associated with sink development in cotton seeds. I. Glycosidases and water content.
    Autorzy:
    Rabadia, V.S.
    Thaker, V.S.
    Singh, Y.D
    Powiązania:
    https://bibliotekanauki.pl/articles/2198879.pdf
    Data publikacji:
    2002-06-23
    Wydawca:
    Instytut Hodowli i Aklimatyzacji Roślin
    Tematy:
    cotton
    glycosidases
    seed
    sink development
    water content
    Opis:
    Three cotton genotypes (Gossypium hirsutum L. H-4, H-6, G. herbaceum V797) varying in their final seed weight were analyzed for the growth and glycosidases activity. Five glycosidases, viz., a-b-galactosidases, a-b-glucosidases and a-mannosidases were estimated in cytoplasmic and wall-bound fractions. Data on dry weight and water content were fitted to polynomial equations and third degree polynomial equation was best-fit. Rate of dry matter accumulation showed closed relationship with water content in all three genotypes. The values for correlation coefficient {r= 0.956(H-4), r= 0.892(H-6) and r= 0.983 (V797)}, were statistically significant. No correlation between ionically wall-bound glycosidases and sink development was observed. In cytoplasmic fraction, the activities were higher during latter phase of dry matter accumulation. Probable role of these enzymes in mobilization of storage products during seed development is discussed.
    Źródło:
    Plant Breeding and Seed Science; 2002, 46, 1; 71-78
    1429-3862
    2083-599X
    Pojawia się w:
    Plant Breeding and Seed Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Study of low temperature inactivation of spores using microwave excited air plasma
    Autorzy:
    Nagatsu, M.
    Singh, M. K.
    Zhao, Y.
    Fujioka, Y.
    Ogino, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/385185.pdf
    Data publikacji:
    2009
    Wydawca:
    Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
    Tematy:
    plasma sterilization
    low temperature plasma
    microwave plasma
    air plasma
    VUV
    radicals
    Opis:
    In the present study, we investigated the inactivation characteristics and contribution of different inactivating factors generated in a low temperature and low pressure nitrogen, oxygen and air-simulated plasma for the inactivation of Geobacillus stearothermophilus spores. We used three optical filters i.e. thin quartz (lambda>180 nm), lithium fluorine (LiF, lambda>120 nm) and Pyrex glass (lambda>300 nm) plates to identify the most efficient wavelength range. The effect of optical radiations alone was studied through placing a small isolated and evacuated chamber with spore sample inside the plasma chamber.
    Źródło:
    Journal of Automation Mobile Robotics and Intelligent Systems; 2009, 3, 4; 108-111
    1897-8649
    2080-2145
    Pojawia się w:
    Journal of Automation Mobile Robotics and Intelligent Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Sensitivity enhancement of metamaterial-based surface plasmon resonance biosensor for near infrared
    Autorzy:
    Pal, S.
    Prajapati, Y. K.
    Saini, J. P.
    Singh, V.
    Powiązania:
    https://bibliotekanauki.pl/articles/173477.pdf
    Data publikacji:
    2016
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    metamaterials
    sensor sensitivity
    reflectance
    evanescent field
    Opis:
    The present study investigates the angular response and sensitivity of a surface plasmon resonance biosensor with metamaterial, by taking the advantage of the remarkable property of metamaterials. The proposed biosensor numerically shows that silver with a metamaterial layer enhances the sensitivity. The thickness of metamaterial and silver layer has been optimized. On comparing these results with a conventional surface plasmon resonance biosensor, it is observed that the sensitivity of the proposed biosensor is improved by introducing the metamaterial. The proposed biosensor has a sensitivity 6.3124 times higher than that of the conventional surface plasmon resonance sensor.
    Źródło:
    Optica Applicata; 2016, 46, 1; 131-143
    0078-5466
    1899-7015
    Pojawia się w:
    Optica Applicata
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    New Control Algorithms for Three-Phase Four-Wire Unified Power Quality Conditioner - a simulation study
    Autorzy:
    Pal, Y.
    Swarup, A.
    Singh, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/262781.pdf
    Data publikacji:
    2013
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
    Tematy:
    UPQC
    power quality improvement
    source neutral current
    mitigation
    load balancing
    voltage harmonics
    current harmonics
    Opis:
    In this paper, some new control algorithms are proposed for a three-phase four-wire Unified Power Quality Conditioner. These control algorithms are based on the combination of Unit Vector Template Generation (UVTG) with Power Balance Theory (PBT), single phase d-q theory, Synchronous Current Detection (CSD) technique, and I CosΦ theory. The performance of each control algorithm of UPQC is evaluated in terms of power factor correction, load balancing and source neutral current mitigation, and voltage and current harmonic mitigation. The performance of proposed control algorithms are compared with synchronous reference frame (SRF) based control algorithm. In each proposed control scheme of the three-phase four-wire UPQC, the current/voltage control is applied over the fundamental supply currents/ load voltages instead of fast changing APFs currents/ voltages, thereby reducing the effects of computational delay. Moreover, the load neutral or shunt APF neutral currents are not sensed hence the required current sensors are reduced. MATLAB/ Simulink based simulations are obtained, which support the functionality of the UPQC.
    Źródło:
    Electrical Power Quality and Utilisation. Journal; 2013, 16, 1; 1-10
    1896-4672
    Pojawia się w:
    Electrical Power Quality and Utilisation. Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Economically viable synthesis of Fe3O4 nanoparticles and their characterization
    Autorzy:
    Srivastava, V.
    Singh, P. K.
    Weng, C. H.
    Sharma, Y. C.
    Powiązania:
    https://bibliotekanauki.pl/articles/778707.pdf
    Data publikacji:
    2011
    Wydawca:
    Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
    Tematy:
    nanożelazo
    żelazo
    synteza
    współstrącanie
    charakterystyka
    pH zpc
    nano iron
    synthesis
    coprecipitation
    characterization
    Opis:
    Nano iron oxide particles (Fe3O4) were synthesized by coprecipitation of Fe2+ and Fe3+ by ammonia solution in the aqueous phase. Various instrumentation methods such as X ray Diffractometry (XRD), Transmission Electron Microscopy (TEM), Fourier Transform Infrared (FTIR) spectroscopy, Brunauer-Emmett-Teller (BET) and Vibrating Sample Magnetometery (VSM) were used to characterize the properties of nanoparticles. The size of the nanoparticles was measured and was found to be between 10 to 15 nm. The value of saturation magnetization of the nanoparticles was found to be 55.26 emu/g. The BET surface area of nano iron oxide particles measured to be 86.55 m2/g.
    Źródło:
    Polish Journal of Chemical Technology; 2011, 13, 2; 1-5
    1509-8117
    1899-4741
    Pojawia się w:
    Polish Journal of Chemical Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A comprehensive review on a less explored medicinally important plant Justicia betonica L.
    Autorzy:
    Manokari, M.
    Latha, R.
    Priyadharshini, S.
    Cokul, Raj M.
    Beniwal, Puneet
    Manjunatha, Reddy Y.
    Rajput, Bharat Singh
    Shekhawat, Mahipal S.
    Powiązania:
    https://bibliotekanauki.pl/articles/1066209.pdf
    Data publikacji:
    2019
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Biological activities
    Chemical constituents
    Folk medicine
    Justicia betonica
    White shrimp
    Opis:
    Justicia betonica L., family Acanthaceae is a widely used traditional folk medicinal herb. It is a unique source of jusbetonin and the leaves yield bluish purple dye. Traditionally, the plant is used to cure constipation, diarrhea, malaria, orchitis, pain, snake bite, stomach ache, vomiting etc. The whole plant possess significant biologically active principles like steroids, triterpenoids, alkaloids, saponins, glycosides, carbohydrates, gum and mucilage, proteins, fixed oils and fat, phenolics and tannins. It is reported to exhibit antiviral, antioxidant, anti-inflammatory, analgesic and antimalarial activities. The intention of the study was to endow an overview of the ethnomedicinal properties, phytochemistry and related pharmacological applications of J. betonica, and to make an authenticated evidence base for further research on this important medicinal plant.
    Źródło:
    World Scientific News; 2019, 131; 110-122
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-11 z 11

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