AMA, Agricultural Mechanization in Asia, Africa and Latin America (AMA) (issn: 00845841) is a peer reviewed journal first published online after indexing scopus in 1982. AMA is published by Farm Machinery Industrial Research Corp and Shin-Norinsha Co. AMA publishes every subjects of general engineering and agricultural engineering. Shenyang Jianzhu Daxue Xuebao (Ziran Kexue Ban)/Journal of Shenyang Jianzhu University (Natural Science) General Medicine (ISSN:1311-1817) Chinese Journal of Evidence-Based Medicine Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation Lizi Jiaohuan Yu Xifu/Ion Exchange and Adsorption
AMA, Agricultural Mechanization in Asia, Africa and Latin America (ISSN: 00845841) is a peer-reviewed journal. The journal covers Agricultural and Biological Sciences and all sort of engineering topic. the journal's scopes are in the following fields but not limited to:
A self-propelled potato digger for small landholders was developed and evaluated. The developed prototype comprises of power transmission unit, digging unit, and separating/collecting unit of the self-propelled potato digger designed to address the needs of the hilly area. All the components were connected to a central support structure via nut bolts and welding, which was powered by a diesel engine (6.71 kW). The developed potato digger was evaluated at different machine and performance parameters. For all the treatment combinations, the maximum digging efficiency (95.37 percent) and the lowest damage percentage (3.24 percent) were observed at a treatment combination of forward speed of 2 kmh-1, rake angle of 260, and vibrating frequency of 900 rpm.
This work aims to improve the technical and economic performance of the ATESTA dryer by including a device with forced convection. This innovation aims to increase the quality of the dried mango and the dryer’s efficiency. For this purpose, a technical diagnosis of the ATESTA natural convection dryer has been carried out. The results of the technical diagnosis combined with a Functional Analysis (FA) and a Multicriteria Analysis (MCA) enabled the sizing of the device with forced convection integrated into the ventilation circuit. This new device comprises an air extractor, a potentiometer, and installation support. The performances of the ATESTA dryer with integrated forced convection compared to those of the ATESTA dryer with natural convection show a net improvement of 68 to 100% of the quality of the dried mangoes of 1st choice, a reduction of 40% of the drying time, of 34% of the consumption of butane gas; a 40% saving of the energy cost. Drying trials with the improved ATESTA gas dryer will be carried out on other tropical products (pineapple, papaya, etc.) to meet the needs of food processors in the West African sub-region.
The field experiment was conducted at Agricultural College and Research Institute, Madurai at kharif 2021 to evaluate the effect of different nursery technique on root characters of different redgram crop varieties. The experiment was laid out in Factorial Randomized Block Design (FRBD) and replicated thrice. The first factor comprised of three different nursery techniques such as portray nursery, mat nursery and polybag nursery and the second factor comprised of 7 redgram varieties of different duration such as short duration (APK 1 and VBN 3), medium duration (Co (Rg) 7) and long duration (ICPH 2671, ICP 7035, ICPH 2740 and Co 8). The experiment concluded that, in all redgram varieties polybag nursery achieved the highest root length, root volume, root nodules and root shoot ratio at (30.80 cm, 0.71 cc, 14.35 and 1.39). This will improve the growth and development of redgram crop.
Floral characters of rose cultivar Minu Pearle influenced in varied degree by studied temperature related weather variables. Correlation between floral characters and weather parameters studied with 6 different phenological stages (P1- bending to FBE, P2- FBE to SR, P3- SR to full bloom, P4- bending to SR, P5- FBE to full bloom and P6- bending to full bloom). Among the characters studied, all the characters negatively correlated with all the temperature related weather variables, except accumulated diurnal variation of temperature at all the phenological stages. Improvement in floral characters was observed with wider day and night temperature along with higher number of bright sun shine hours during the peak flowering stage (December to January).
In manufacturing operations, oil performs a significant function in reducing friction and wear among interacting surfaces at varying velocities, loads as well as temperature. Hydrocarbon oil is considered the core origin for lube oils, although this base has been limited in its use as it is a principal cause of pollution. This research focused on identifying a biodegradable base-oil lubricant that possesses a stable coefficient of friction and viscosity with temperature. Friction analysis was conducted, employing a pin on disk tribotester with a fixed load of 10 N and varying sliding speeds of 0.06 m/s to 0.34 m/s. Oil viscosity analysis was also carried out at room temperature using a rotary viscometer. The tests were performed on canola oil and paraffin oil lubricants. The results of the test indicated that the viscosity of canola oil was more efficient than paraffin oil. The non-dimensional characteristic number according to the Stribeck curve revealed an elasto-hydrodynamic lubrication regime with canola oil lubrication. In comparing both lubricants, the friction efficiency demonstrated by canola oil and paraffin oil did not differ greatly. However, the friction for canola oil was observed to decrease more than for paraffin oil at an elevated sliding speed. The tests confirmed that canola oil was potent in minimizing coefficient of friction of SCM 440 bodies interacting with one another as well as acted upon by load and speed.