Current Journal of Applied Science and Technology <p style="text-align: justify;"><strong>Current Journal of Applied Science and Technology (ISSN:&nbsp;2457-1024)</strong> is dedicated to publish research papers, reviews, case studies and short communications from all disciplines of science and technology. By not excluding papers on the basis of subject area, CJAST facilitates the research and wishes to publish papers as long as they are technically correct and scientifically motivated.</p> SCIENCEDOMAIN international en-US Current Journal of Applied Science and Technology 2457-1024 Design and Fabrication of Manually Operated Paddy Weeder <p>A manual type operated weeder was designed and developed at the workshop of the Department of Farm Machinery and Power at BCKV, Nadia district, West Bengal, India. This Study was conducted to know the design features of manually operated weeders for paddy weeding. The weeder was made of locally available materials to reduce the cost of weeding. The weeder was tested at the experimental field of the Department of Farm Machinery and Power to evaluate its functional and economical parameters. The travel speed of this type weeder is 1.3 km/h. The weeding efficiency of weeder was found 65.6% to 74.2%. The average field capacity of the weeder was observed as 0.013 ha/h.</p> <p>The field efficiency of this type weeder was found as 81.2%. The plant damage of this weeder was found as 2.96%. Operating cost of this type weeder is Rs. 3557.3/ha. Therefore, designed of this type weeder is the best in terms of cost of operation and it is more economical compared to other weeding operation.</p> Bibek Ishore J. P. Gupta ##submission.copyrightStatement## 2022-06-23 2022-06-23 9 20 10.9734/cjast/2022/v41i2031745 Technical Parameters of the Cana-Atchia Lateritic Aggregate for Its Use in Road Engineering in Southern Benin <p><strong>Aims: </strong>To determine the technical parameters sought in road engineering of the lateritic aggregate of Atchia village in the Arrondissement of Cana, Commune of Zogbodomey.</p> <p><strong>Study Design:</strong> To valorize the lateritic aggregate of Cana-Atchia in the construction of roads in Benin.</p> <p><strong>Place and Duration of Study:</strong> Colas Benin Entreprise Laboratory and Laboratory of Energetic and Applied Mechanic, Polytechnic School of Abomey-Calavi, University of Abomey-Calavi, Abomey-Calavi, between January 2021 and March 2022.</p> <p><strong>Methodology:</strong> Thus, with the help of classical road material characterization tests, the values of technical road engineering parameters are determined on prepared specimens.</p> <p><strong>Results:</strong> The different results obtained are the percentage of passings at the 80 µm sieve (13%), the liquidity limit (32.67%), the plasticity index (13.67%), the dry density obtained at the Proctor optimum (2.28t/m<sup>3</sup>), the CBR index (106%) and the swelling index (0.04%). In the Proctor test, the water content at the OPM is evaluated at 8.20%. Similarly, studies have shown that the lateritic gravel of Cana-Atchia has a natural water content of 3.5% and an organic matter content of 0.75%.</p> <p><strong>Conclusion:</strong> From this study, it appears that the lateritic aggregate of Cana-Atchia has very good technical parameters sought in road engineering, with regard to the technical specifications of the CEBTP guides of 1984 and 2019.</p> Kocouvi Agapi Houanou Kpomagbé Serge Dossou Abalo P’kla Vincent Prodjinonto Constant Euloge Adjagboni Emmanuel Olodo ##submission.copyrightStatement## 2022-06-24 2022-06-24 21 33 10.9734/cjast/2022/v41i2031746 Effect of Processing Methods on the Nutritional Composition of Ripe Pumpkin Fruit <p>This research was carried out to assess processing methods on the nutritional composition of ripe pumpkin (<em>C</em>. <em>moschata</em>). Thermal processing (steam blanching and drying) was used to prepare pulp and powder. Pumpkin slices of treatment T<sub>6</sub> were steam blanched for 4 minutes, soaked in potassium metabisulfite (KMS) for 15 minutes and awarded the highest overall acceptability score (8.79) by panellists were used for the preparation of pulp and powder. A significant difference was observed in moisture content between fresh, pulp and powder i.e. 88.14 %, 88.93 % and 6.12 % respectively. The heat-sensitive nutrients (ascorbic acid and β-carotene) were significantly decreased after processing to a pulp (13.88 mg/ 100 g) and powder (10.77 mg/ 100 g) in comparison to fresh fruit (15.81 mg/ 100 g). The ash, crude fibre, fat, protein, total soluble solids, titratable acidity, total carbohydrate, energy, reducing sugars and total sugars significantly increased in powder as compared to fresh and pulp due to moisture content difference. The colour was recorded to be (L* 36.83, a* 4.44, b* 40.13), (L* 0.19, a* 8.12, b* 9.60) and (L* 7.41, a* 1.23, b* 12.83) for fresh, pulp and powder, respectively. The chroma (C*) analyzed was 40.37, 12.57 and 12.89, respectively while hue angle (h<sup> o</sup>) was 83.69, 49.77 and 84.52, respectively while the browning index (BI) was 0.75, -0.43 and 0.35 for fruit, pulp and powder respectively. Several value-added products such as pumpkin concentrate, jam, juice, syrup, chutney, confectioneries, bakery products, ready to cook instant food premixes as well as reconstituted products and weaning foods with improved vitamin A content and minerals can be prepared from ripe pumpkin pulp and powder.</p> Caresma Chuwa Anju K. Dhiman Deepika Kathuria ##submission.copyrightStatement## 2022-06-25 2022-06-25 47 56 10.9734/cjast/2022/v41i2031748 Review on Impacts of Energy Factors on Real Estate Values <p><strong>Introduction:</strong> Real estate valuation is an issue of particular concern. It depends on many factors such as economic social and physical factors. The energy is one of the important factor, which affects the real estate value. In property appraisal, the energy can be considered as a price-setting factor in market price of real estate. Then, it is so difficult for real estate appraiser to determine why property price differ and how much this difference can be attributed to particular distinguishing features such as energy.</p> <p>Many studies have exanimated the effects of various factors on real estate value such as transportation, location, conditions, houses features, pollution. However, the energy is not much analyzed as factor of real estate value despite it great role in real estate value determination. This paper seeks to fill that void by examining the effects of energy on property values: power tower, power lines, energy transformation plants.</p> <p><strong>Methods:</strong> The study is engaged in a legal doctrinal analysis of law and scientific research findings. It analyses decisions from courts and tribunals related to the impacts of energy on property prices in order to establish their views of energy factor in determining real estate values and who bears the responsibility of property appreciation or depreciation.</p> <p><strong>Results:</strong> the paper highlights many aspects related to energy as value factor of real estate, it can be used to assess the market price and determine the influence of energy factor may have on the property final market value.</p> <p><strong>Discussions:</strong> This research informs property appraisers of the energy importance in real estate appreciation and increasing value. However, in few cases, the energy could decrease the property value specially properties near or below high voltage line power or transformations plants if the risk is shared and approved.</p> Mohamed Farhaoui Pr. Chahid Slimani ##submission.copyrightStatement## 2022-06-23 2022-06-23 1 8 10.9734/cjast/2022/v41i2031744 Controlled Release of Nutrients for Soil Productivity- A Review <p>The nutrient release from conventional chemical fertilizers to the soil are lost continuously through leaching, runoff, volatilisation, denitrification etc and also most of the time they do not satisfy the plant requirements without the continuous application. These issues have caused economic loss as well as environmental pollution due to hazardous emissions and water eutrophication. Controlled release of nutrients through the application of slow/controlled release fertilizers and nanofertilizers are possible solutions, which provides their nutrients according to the requirement of crops. Release of nutrients from controlled release fertilizers are delayed by means of coating the soluble fertilizer core with porous semipermeable membrane. A variety of coating materials are developed for the preparation of controlled release fertilizers. The longevity of controlled release fertilizers (CRFs) depends upon the thickness of coating, temperature and moisture content. Nano technology is an emerging field, which also produce nanofertilizers based on CRFs are used for the increment of active fertilizer material in the field, as they present large surface area for the release of required nutrients to the plant in a controlled manner. Controlled release of nutrients has profound influence on soil properties and yield parameters of crops. The use of controlled release fertilizers (CRFs) starts to evolve as a promising direction offering an excellent means to improve management of nutrient application and by this reducing significantly environmental threats while maintaining high crop yields of good quality. Controlled release fertilizers allow the release of nutrients to be better matched with the life cycle of the plant.</p> M. R. Rehana R. Gladis Biju Joseph ##submission.copyrightStatement## 2022-06-25 2022-06-25 34 46 10.9734/cjast/2022/v41i2031747