ORGANIC

Comparative Performance analysis of Selected Working Fluids in a low temperature organic RankineCycle forWasteHeatrecoveryApplication. The global imperative to improve energy efficiency necessitates the effective recovery of low- gradewast heat,achallengeperfectlyaddressedbytheorganicRankineCycle (ORC)technology. This project undertakes a comprehensive comparative analysis of selected candidate organic
working fluids – including Ethanol, Toluene, Cyclopentane, R245fa, R1233zd(E) and R152a, drawn fromthe categories ofdry,wet andisentropic fluids,withina low temperatureORCsystem designed for industrial waste heat recovery. The primary goal isto identify the optimal fluid that maximizesthermodynamic performance under a specified heatsource temperature (e.g 206 0Cto 123.70C). A thermodynamic model was developed to simulate the cycle’s performance. The selected fluids areevaluatedagainstkeymetricssuchasnetworkandthermal efficiency. Initial simulation results reveal significant variability in cycle performance, depending on the fluid’s criticaltemperature,boilingpointandcondensationtemperatures andpressures. The findings provide a data driven basisforselecting aworking fluid that not only achieves higher power generation but also minimizes system’s complexity and investment cost, thereby acceleratingthedeploymentofsustainablelowtemperaturewasteheatrecoverysystems

This experiment was conducted to investigate the residual effects of organic amendments on soil fertility and properties following sweet corn cultivation in tropical agroecosystems. Continuous sweet corn farming without adequate organic amendment often leads to soil degradation, nutrient depletion, compaction, and reduced biological activity. The use of organic amendments such as compost, manure, and crop residues help counter these effects by improving soil chemical, physical, and biological conditions. These benefits such as nutrient release, enhanced soil structure, and increased microbial activity extend beyond the initial cropping cycle, making them particularly valuable in resource- limited farming systems. Residues from organic amendments contribute to sustained soil fertility, better crop yields, and reduced reliance on synthetic fertilizers. They enhance water-holding capacity, promote root development and improve soil resilience against drought and erosion.These improvements not only benefit subsequent crops but also reduce production costs and support environmental conservation through carbon sequestration and lower greenhouse gas emissions. In conclusion, incorporating organic amendments into soil management offers both economic and ecological advantages for long-term agricultural productivity.

Nature has provided humans with medicine, shelter, food, clothing, fragrances, and transportation throughout history. The D3 organic® supplement's antidepressant and anxiolytic properties are assessed. Antidepressants and anxiolytics were tested in the forced swim, tail suspension, and elevated plus maze. Twenty-five 20–30 gram mice were divided into five groups of five. Group 1 received 10 ml/kg distilled water, Groups 2, 3, and 4 received 50, 100, and 200 mg/kg D3 organic® supplement extract, and Group 5 received 20 mg/kg oral fluoxetine. After receiving D3 and fluoxetine, mice were placed in an unbreakable transparent cylinder filled with water at 25°C for one hour. Animal immobility was measured after 5 minutes of swimming. Twenty 20–30 gram mice were randomly assigned to five four-animal groups. Group 1 received distilled water (10 ml/kg), groups 2–4 D3 organic® supplement extract (50, 100, and 200 mg/kg), and group 5 diazepam. The animals spent five minutes in the central maze an hour after receiving D3 organic® supplement extracts and diazepam. The number of entries and open arms time were recorded. In the forced swimming and tail suspension test, D3 organic® supplement extract (100 and 200 mg/kg) and fluoxetine (20 mg/kg) reduced immobility time compared to the control (p<0.05). Diazepam (10 mg/kg) and D3 organic® supplement extract (100 and 200 mg/kg) increased time spent and percentage time spent in the open arm compared to the control (p<0.05). D3 Organic® Supplement has anxiolytic and antidepressant properties.