A significant quantity of hydrocarbons remains in the reservoir after production using primary and secondary techniques. Traditional recovery techniques produce about 33 % of the original oil in place. However, the utilization of chemicals such as surfactants and polymers facilitate the additional recovery of one‐third of this oil. Researchers are currently aiming at mixing surfactant and nanoparticles for their potential applications in petroleum industry. In this work, authors claimed to be the first to study usage of synthesized Mesoporous Silica Nanoparticles (MSN) with Sodium Dodecyl Sulphate (SDS) surfactant to understand its applicability in Chemical Enhanced Oil Recovery through evaluation of the surface tension & Interfacial tension, surfactant adsorption, contact angle, and core flooding experiments. Surface tension studies revealed a synergistic interaction between MSN and anionic surfactant molecules. With the introduction of 2500 ppm of anionic surfactant, the surface tension of deionized water reduces to 34.5 mN/m from 72.4 mN/m. The surface tension of the mixture was further lowered by ∼9.8 % with the addition of 300 ppm MSN. The Interfacial Tension results also showed the same trend. When 300 ppm of MSN was introduced, then IFT values decreases from 8.13 mN/m to 3.91 mN/m at 2500 ppm of anionic surfactant. Contact angle measurements after MSN injection went from 77.98° for SDS (2500 ppm) to 73.36°, 66.54°, and 41.95° for 100, 200, and 300 ppm of MSN, respectively. This demonstrates that the shift toward water‐wet behavior increased along with the MSN concentration. Additionally, adding 300 ppm of MSN lowered surfactant adsorption by ∼80 % at a surfactant concentration of 2500 ppm. Up to 72.27 % of the OOIP could be recovered using the chemical slug made of SDS surfactant, polymer, and MSN. The research data suggests that the MSN can increase the effectiveness of the chemical injection approach, which can be used to recover more oil.

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A field experiment was conducted at the potato research station, Mainpat, Surguja (C.G.) during Rabi season 2021-22 with a view to study the “Study of shed net cultivation compared to open field on yield of potato varieties (Solanum tuberosum L.)”. The field experiment was carried out in split plot design with three replications. The soil of experimental field was sandy clay soil. The investigation, There were the recommended dose of fertilizer NPK kg ha-1 was applied at different concentrations in potato with two production system (Main plot) i.e., P1- Open field and P2- Shed net house and four potato varieties (Subplot) i.e., V1-KufriKhyati, V2-Kufri Lalit, V3-KufriChipsona- 3, and V4- True Potato Seed (F2C2) which were interaction effect of potato. The yield attributes of potato i.e. number of tubers plant-1, fresh weight of tubers plant-1 (g), tuberization efficiency (tuber: haulm), grade wise tuber yield i.e.<50g, 50-100 g &>100 g, total tuber yield and haulm yield of potato were significantly superior in shade net house growing system (P2) with Kufri Lalit (V2) variety. On the basis of above findings, among the different production system P2(Shed net house) followed by P1 (Open field) showed the best result for all the parameters. Amongst the different verity V2 (Kufri Lalit) followed by V3 (Kufri Chipsona-3) recorded best result for all the parameters. However, interaction effect of variety with production system P2V2(Shed net house and Kufri Lalit) followed by P2V3(Shed net house and Kufri Chipsona-3) noticed best result for all the treatments of yield parameter.

Renewable energy sources have become increasingly important as conventional sources deplete. This project involves a gym machine that harnesses power from human users to function both as an exercise machine and power generator. The machine's reciprocating motion is converted into rotary motion using a flywheel arrangement, which is then increased via a gear box, allowing for the generation of electrical energy using an alternator. The power generated through this pull-up/pull-down method is highly efficient, as 95% of the exerted effort is converted into energy. This system serves two purposes by creating resistance in the movement of the forearm and simultaneously generating power from this motion. This project is a creative and innovative way to utilize renewable energy sources while also promoting exercise and physical fitness.

The experiment was conducted at Narendra Deva University of Agriculture and Technology's Main Experiment Station, Department of Vegetable Science, Narendra Nagar (Kumarganj), ayodhya (U.P.), during the Rabi season of 2016–17. The soil in the experimental field has a sandy loam texture. Four replications of a Randomized Block Study were applied to seven treatments. The experimental findings showed that the use of RDF 100 kg P2O5 per ha was found better with respect to promotion of growth, yield and quality parameters of potato. The maximum value on growth characters were also recorded T7 -RDF kg P2O5 ha-1 is better as compare to (T5-90 kg P2O5 ha-1 and T6-120 kg P2O5 ha-1) using in potato variety Kufri Khyati. It was found significantly superior over rest of all the treatments. An application of treatment T7 -RDF 100 kg P2O5 ha-1 in was found to be most effective total phosphorus uptake by plant and tuber (24.31kg h-1) and available phosphorus (13.50 kg h-1). The tuber and plant content of phosphorus was found T7 (.280 %) and (0.156%) and dry matter (18.10%) tuber and (10.86%) in plant for highest tubers yield (388.79 q per ha) and maximum net return Rs. 139062 as benefit cost ratio 1.47 on this dose of phosphorus in the years investigation.