97 research outputs found

    A framework-based wind forecasting to assess wind potential with improved grey wolf optimization and support vector regression

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    Wind energy is one of the most promising alternates of fossil fuels because of its abundant availability, low cost, and pollution-free attributes. Wind potential estimation, wind forecasting, and effective wind-energy management are the critical factors in planning and managing wind farms connected to wind-pooling substations. Hence, this study proposes a hybrid framework-based approach for wind-resource estimation and forecasting, namely IGWO-SVR (improved grey wolf optimization method (IGWO)-support vector regression (SVR)) for a real-time power pooling substation. The wind resource assessment and behavioral wind analysis has been carried out with the proposed IGWO-SVR optimization method for hourly, daily, monthly, and annual cases using 40 years of ERA (European Center for Medium-Range Weather Forecast reanalysis) data along with the impact of the El Niño effect. First, wind reassessment is carried out considering the impact of El Niño, wind speed, power, pressure, and temperature of the selected site Radhapuram substation in Tamilnadu, India and reported extensively. In addition, statistical analysis and wind distribution fitting are performed to demonstrate the seasonal effect. Then the proposed model is adopted for wind speed forecasting based on the dataset. From the results, the proposed model offered the best assessment report and predicted the wind behavior with greater accuracy using evaluation metrics, namely root mean square error (RMSE), mean absolute error (MAE), and mean squared error (MSE). For short-term wind speed, power, and El Niño forecasting, IGWO-SVR optimization effectively outperforms other existing models. This method can be adapted effectively in any potential locations for wind resource assessment and forecasting needs for better renewable energy management by power utilities

    Mission India for Transforming Agriculture (MITrA)

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    Humankind’s biggest challenge in the 21st century is to ensure food and nutritional security for the growing population and improved livelihoods for smallholder farmers. World population is estimated to swell to 9.3 billion by 2050. India has to feed 1.4 billion people by 2025 and water demand for food production will increase dramatically. This challenge becomes increasingly acute in light of the depleting water resources (5177 m3 in 1951 to 1545 m3 in 2011), degrading land and increasingly variable weather associated with climate change. The Ministry of Agriculture & Farmers Welfare, Government of India has taken a novel initiative to transform agriculture in India as part of the Digital India program by transforming the rural economy and creating skilled jobs in rural areas. The Government of India has initiated various innovative schemes to enhance food production and to mitigate impacts of climate change. At the request of the Prime Minister’s Office, Government of India, to prepare a long-term strategy to increase economic opportunities for rural families in India, the International Crops Research Institute for the Semi-Arid Tropics (ICRISAT)1 has prepared a set of six strategy papers: 1) Pulses2 2) PMKSY3) Soil Mapping4) Agri Markets5) Crop Insurance6 and 6) Digital Agriculture. The draft versions, based on the PMO request, were discussed with the Ministry of Agriculture & Farmers Welfare, Government of India7 and its senior officers made detailed suggestions to refine and strengthen these papers. This summary, elaborated in the following sections and the set of strategy papers, attached separately, incorporate the suggestions made by the Ministry officials and other leading sector-specialists from India

    Isotope dilution with high pressure asher acid digestion for the determination of platinum group elements in chromitite from katpal chromite mine in the Sukinda Ultramafic Complex, Eastern India

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    Chromitite samples were collected from a core from the Katpal chromite mine of Sukinda chromite field for characterization of mineralogy especially the platinum group minerals (PGM). Isotope dilution with High Pressure Asher (HPA-ID) technique has been used in this study to evaluate its ability to determine compositions from small quantities of sample (two grams of sample). Enrichment of Iridium group of platinum elements (IPGE) (Ir ~ 1717 ng/g; Ru ~ 20 ng/g) at depth of ~ 35-80 m in the investigated core suggests the presence of a strong potential zone for IPGE mineralization. The obtained data suggests similarities with the ‘Reef-type’ mineralization

    Potential Phytopharmacy and Food Applications of Capsicum spp.: A Comprehensive Review

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    Capsicum genus (Solanaceae) is native to the Americas. Today, it is an important agricultural crop cultivated around the world, not only due to its economic importance, but also for the nutritional value of the fruits. Among their phytochemical constituents, capsaicinoids are characteristic and responsible of the pungency of sharp-tasting cultivars. Moreover, Capsicum and capsaicinoids (mainly, capsaicin) have been largely studied because of their health benefits. Thus, this study reviews the scientific knowledge about Capsicum spp. and their phytochemicals against cancer, diabetes, gastrointestinal diseases, pain, and metabolic syndrome, as well as their antioxidant and antimicrobial activity. These bioactivities can be the basis of the formulation of functional ingredients and natural preservatives containing Capsicum extracts or isolated compounds

    Management information needs for groundwater irrigation within a large canal system

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    In Sowerwine, J.; Shivakoti, G.; Pradhan, U.; Shukla, A.; Ostrom, E. (Eds.), From farmers' fields to data fields and back: A Synthesis of Participatory Information Systems for Irrigation and Other Resources: Proceedings of an International Workshop held at the Institute of Agriculture and Animal Science, Rampur, Nepal, 21-26 March 1993. Colombo, Sri Lanka: IIMI; Rampur, Nepal: IAA

    Rethinking rehabilitation: socio-ecology of tanks and water harvesting in Rajasthan. Prepared for the IWMI-TATA Water Policy Research Program Annual Partners' Meet, 2002

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    In the arid and semi-arid Indian state of Rajasthan, tanks and ponds have been a mainstay of rural communities for centuries. This paper assesses a rehabilitation strategy proposed for 1200 large tanks. It argues that treating tanks only as flow irrigation systems is very likely to result in a flawed strategy. As the experience of NGOs work shows, Rajasthan?s tanks belong more to the watershed development domain than to the irrigation domain and a strategy that views tanks as multi-use socio-ecological constructs, and which recognizes varied stakeholder groups is more likely to enhance the social value of tanks

    Types of irrigation management transfer in India

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    Paper presented at Voices From the Commons, the 6th Conference of the International Association for the Study of Common Property, Berkeley, California, USA, 5-8 June 199
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