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AMA, Agricultural Mechanization in Asia, Africa and Latin America

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.

Submission Deadline
16 Aug 2022 (Vol - 53 , Issue- 08 )
Upcoming Publication
31 Aug 2022 (Vol - 53 , Issue 08 )

Aim and Scope :

AMA, Agricultural Mechanization in Asia, Africa and Latin America

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:

Azerbaijan Medical Journal Gongcheng Kexue Yu Jishu/Advanced Engineering Science Zhonghua er bi yan hou tou jing wai ke za zhi = Chinese journal of otorhinolaryngology head and neck surgery Interventional Pulmonology
Agricultural and Biological Sciences
Electrical Engineering and Telecommunication
Electronic Engineering
Computer Science & Engineering
Civil and architectural engineering
Mechanical and Materials Engineering
Transportation Engineering
Industrial Engineering
Industrial and Commercial Design
Information Engineering
Chemical Engineering
Food Engineering

Minimizing gearbox cost for Three-stage Bevel Helical Gearboxes

Paper ID- AMA-04-09-2021-10680

The current article aims to determine the optimum partial gear ratios of three-stage bevel helical gearboxes which can minimize the gearbox cost. Twelve main process parameters are adopted to examine their effects on u1 and u2. A plan of simulation experiment is conducted to serve for finding regression model. It is revealed that the total gearbox ratio parameter, ug, has the biggest effect on both response u1 and u2 when compared to those of others. Moreover, the predicted values given by regression model are significantly consisted of experiments.


Paper ID- AMA-03-09-2021-10679

Agricultural tools and machines (Mechanization) have an important and strategic role in achieving agricultural development goals in order to accelerate the achievement of national food self-sufficiency and the main strategic commodities in meeting the needs of food and animal feed. The problem is, not all maize production is of good quality according to animal feed and industry standards. This is what deserves attention, the quality of maize production increases so that it is able to meet domestic demand and opens up opportunities for export. For this reason, a study is needed to analyze the effectiveness of the use and utilization with an evaluation approach of the mechanization assistance program provided by farmers. The results of the study showed that 60% of maize farmers thought that the assistance was able to increase the production and productivity of agricultural products. The results of interviews with maize farmers showed that the estimated increase in maize production ranged from 20 - 40% from the previous one. Maize Shiller assistance is still not evenly distributed, even though this machinery is very helpful for farmers in overcoming post-harvest maize problems. The limited number of reliable technical personnel at the village level is a problem in itself. For this reason, the budget for increasing the number of maize Shillers, mentoring and training in the use of agricultural machinery needs to be increased, so that the distribution of agricultural machinery is evenly distributed and farmers who receive direct training can easily use mechanization on their own agricultural land.

Greenhouse gas sequestration in a microalgae culture with different nutrition regimes

Paper ID- AMA-03-09-2021-10678

A culture of the microalgae Scenedesmus sp. in a pilot closed raceway photo bioreactor (CRPB), with flue gas injection from a diesel engine was implemented. Two different nutritional medium, Z-8 and EPA were used to feed the culture growth that was monitored in terms of total and partial biomass productivity, carbon fixation and oil production during nine days. The system was sequentially sampled measuring the gas flow and concentration of the injected CO2, the amount of biomass harvested and the concentration of CO2 in the degassing flow. In addition, the pH was measured in the culture to assess the amount of CO2 instantaneously dissolved. The results at the steady state, showed a carbon fixation efficiency ranging between 21.6 % and 44.9 %, and that the Z-8 medium was clearly better than the EPA in terms of CO2 capture and therefore biomass and oil production. A continuous increasing of oil content in microalgae biomass up to 6.6 % dry basis, with maximum oil production rate of 2.27 g m-3d-1 was observed, with a maximum rate of biomass production of 44.97 g m-3d-1 and a maximum carbon capture rate of 2.27 g m-3d-1 was achieved with the culture medium Z-8.


Paper ID- AMA-03-09-2021-10677

A belt conveyor type dryer was developed to reduce the moisture content of dehulled tamarind fruit to an optimized level for deseeding and hence reduce the wastage of fruits. The dehulled tamarind fruit was dried under three different temperatures (50, 60, & 70oC) with the combination of three different airflow rates (0.5, 1.0 & 1.5 m/s) and three different feed rates (5, 7.5 & 10 kg/h). The selected variables were optimized using statistical analysis to develop the prototype dryer. The optimized temperature, airflow rate and feed rate were 60oC, 1.5 m/s and 5 kg/h, respectively. The drying models were used for analyzing the drying kinetics of dehulled tamarind fruit under different temperature conditions. The highest coefficient of determination of 0.99 and reduced Chi square of 0.0001 favoring the optimized drying condition was obtained for the Midilli model. The color change of dehulled tamarind fruit during drying were measured by Hunter color meter. The most preferable color was obtained at 60oC drying temperature and the corresponding L*, a* and b* values were 49.5 ± 2.6, 2.9 ± 1.1 and 11.5 ±1.4, respectively.


Paper ID- AMA-02-09-2021-10671

Jackfruit (Artocarpus heterophyllus) is a large species in Moraceae family which is commonly found in Mekong delta of Vietnam. The demand of jackfruit products is presently increased for domestic consumption and processed export purposes. Nevertheless, breeding materials of jackfruit are insufficient since the identification of breeding material is mainly based on morphological characteristics. The effective applications of molecular markers to evaluate the genetic diversity of plants for enhancing the accuracy of plant breeding have been reported in different plants. In this study, two molecular markers namely RAPD and ISSR were applied to investigate the genetic variation of 20 jackfruit accessions collected in Mekong delta provinces in Southern Vietnam. The obtained results showed that both RAPD and ISSR markers produced a high number of polymorphic bands ranging from 8 to 12 and 3 to 8 bands, respectively. Based on the PIC values, the primers used by both markers are highly informative which are 0.69 or higher. The similarity coefficients are variable, ranged from 0.40-0.80 and from 0.41 to 0.81 for RAPD and ISSR, respectively. The phylogenetic analysis showed that collected jackfruit accessions were classed in different clusters with coefficient index varying from 0.52 to 0.87 suggesting the large variation in genetic composition of the jackfruit population in Vietnam. The findings could be potential to employ in future classification, conservation and development of this plant in the region.