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RISS 인기검색어
- 검색키워드
- 저자 : ( Mohammod Ali ) (검색결과 73 건)
- 무료
- 기관 내 무료
- 유료
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Development of a Plum (Japanese Apricot) Seed Remover for Multipurpose Plum Flesh Processing
Ali, Mohammod,Park, Seong-Jin,Akhter, Tangina,Kim, Gwang-Shim,Yang, KyuWon,Seonwoo, Hoon,Kim, Hyuck-Joo Korean Society for Agricultural Machinery 2017 바이오시스템공학 Vol.42 No.4
Purpose: Japanese Apricot, a type of plum, has various medicinal and economical applications. Plums are quite popular worldwide, but their deseeding remains a serious impediment to their processing. Therefore, a plum (Japanese Apricot) seed remover (PSR) was developed that can use various types of cutters according to the purpose of the plum processing, and its performance was evaluated. Methods: The proposed PSR, which allows multipurpose cutters, namely, zero-, two-, and four-blade cutters, to be installed, was first designed and manufactured. To identify appropriate parameters related to the cutting pressure, plums were harvested from three regions during three harvesting periods, and their geometrical and mechanical properties were measured. After application of the parameters related to the cutting pressure, a performance test was carried out on both fresh and frozen plums by identifying the ratios of the flesh recovery, seed recovery, seed breakage, deseeding efficiency, and machine efficiency. Results: The results show that, using the proper calculation of the processing parameters, 100% deseeding efficiency was facilitated regardless of the type of cutter used. However, in the case of a four-blade cutter, there are significant differences in the flesh recovery ratio according to the plum setting angle. Between the fresh and frozen plums, all cutters showed a significantly better flesh recovery ratio for the case of fresh plums. Conclusions: This machine will advance the plum processing technology, and eventually help the plum industry flourish.
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Development of a Plum Seed Remover for Multipurpose Plum Flesh Processing
( Mohammod Ali ),( Seong-jin Park ),( Seong-yoon Cho ),( Jong-ho Lee ),( Tangina Akhter ),( Kyu-won Yang ),( Gwang-shim Kim ),( Hyuck-joo Kim ) 한국농업기계학회 2017 한국농업기계학회 학술발표논문집 Vol.22 No.2
Plum (Prunus mume) has various medicinal and economical applications. Nowadays, the plums are very popular in South Korea as well as over the world, but extracting of plum seed remain a serious impediment in their processing. Therefore, we developed a plum seed remover (PSR) with capacity of 80 kg · h<sup>-1</sup> which can use various types of cutters according to the purpose of plum processing and evaluated its performances. At first, the PSR in which multipurpose cutters- zero, two, and four-blade cutters can be installed was designed and manufactured. For identifying appropriate parameters related to cutting pressure, plums were harvested from three regions with three harvesting periods and their geometrical and mechanical properties were measured. After the application of the parameters related to cutting pressure, the performance test was carried out to both fresh and frozen plums by identifying the ratios of flesh recovery, seed recovery, seed breakage, deseeding efficiency, and machine efficiency. Evaluation was done by conducting experiment set different angle of positions (0°, 15°, 45°, 90° and 180°). The testing results of the PSR showed that 100% deseeding efficiency was facilitated regardless of the types of cutters. However, in case of four-blade cutter, there are significant differences in flesh recovery ratio according to the plum setting angle. The developed PSR was recorded about 80% average flesh recovery for fresh plum and about 70% flesh recovery for frozen plum. As a result, between fresh and frozen plums, all cutters showed significantly better flesh recovery ratio for the case of fresh plums. As compared to traditional plum seed separator developed PSR reducing manual labor and saving operating time and increasing machine productivity. Finally, this machine will advance the plum processing technology, and eventually flourish the plum industry.
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ALI MOHAMMOD,이예슬,Chowdhury Milon,KHAN NADEEM ALI,Swe Khine Myat,Rasool Kamal,Kabir Md Shaha Nur,이대현,정선옥 한국농업기계학회 2021 바이오시스템공학 Vol.46 No.1
Purpose Overturning and high vibration levels are major causes of agricultural farm fatalities and mechanical troubles during operation. This study assessed the stability angles of a self-propelled 1-row Chinese cabbage harvester and measured the vibration levels for safety under different conditions. Methods The stability of the Chinese cabbage harvester was investigated using computational methods, and the vibration levels were measured on off-road and field conditions. The three-dimensional model of the Chinese cabbage harvester was designed and simulated to evaluate the static stability angles employing commercial software. The relationship between vehicle and deformable soil was calculated using the empirical models. The critical angles and the climbing ability of the developed harvester were examined under loaded and unloaded conditions. The vibration exposures were measured on the cabbage conveyor and the power transmission part in static, off-road, and field operation conditions under various speeds and slopes. Results The stability simulation results showed the minimum lateral stability angles of the harvester were pointed on the loaded condition compared to the unloaded condition. The maximum sideways overturning angle of the Chinese cabbage harvester was recorded as 32° at 150° ground angle and 30° at 270° ground angle, from the moving directions clockwise, for unloaded and loaded conditions. The high levels of vibration were measured at 0.19, 1.64, and 1.38 m/s2 for static, off-road, and field conditions at high speeds among X-, Y-, and Z-axis directions, respectively. Besides, the considerable vector sum (Av) exposures were calculated 1.54, 2.14, and 2.48 m/s2 at 0.3, 0.6, and 0.9 m/s forward speeds on the cabbage conveyor part. Conclusion The concept and guidelines of this research could help to protect operators from safety risks and expose vibration characteristics during farm operations of the self-propelled Chinese cabbage harvester prototype.
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Development of a Plum (Japanese Apricot) Seed Remover for Multipurpose Plum Flesh Processing
( Mohammod Ali ),( Seong-jin Park ),( Tangina Akhter ),( Gwang-shim Kim ),( Kyuwon Yang ),( Hoon Seonwoo ),( Hyuck-joo Kim ) 한국농업기계학회 2017 바이오시스템공학 Vol.42 No.4
Purpose: Japanese Apricot, a type of plum, has various medicinal and economical applications. Plums are quite popular worldwide, but their deseeding remains a serious impediment to their processing. Therefore, a plum (Japanese Apricot) seed remover (PSR) was developed that can use various types of cutters according to the purpose of the plum processing, and its performance was evaluated. Methods: The proposed PSR, which allows multipurpose cutters, namely, zero-, two-, and four-blade cutters, to be installed, was first designed and manufactured. To identify appropriate parameters related to the cutting pressure, plums were harvested from three regions during three harvesting periods, and their geometrical and mechanical properties were measured. After application of the parameters related to the cutting pressure, a performance test was carried out on both fresh and frozen plums by identifying the ratios of the flesh recovery, seed recovery, seed breakage, deseeding efficiency, and machine efficiency. Results: The results show that, using the proper calculation of the processing parameters, 100% deseeding efficiency was facilitated regardless of the type of cutter used. However, in the case of a four-blade cutter, there are significant differences in the flesh recovery ratio according to the plum setting angle. Between the fresh and frozen plums, all cutters showed a significantly better flesh recovery ratio for the case of fresh plums. Conclusions: This machine will advance the plum processing technology, and eventually help the plum industry flourish.
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Mohammod Ali,Bok Seok Kim,Seong-Jin Park,김혁주 경상국립대학교 농업생명과학연구원 2019 농업생명과학연구 Vol.53 No.2
The Eurytoma maslovskii conduces the unexpected plum dropping. It stayed overwinter insidethe pits of the dropped plums and able to oviposit on plum surface when the diameter of theplums are over 16 mm prior to endocarp hardening. To control this harmful pests is too muchessential to plum orchard. Therefore, the plum seed crusher (PSC) was designed and developedaccording to the purpose of perishing the pests through destroying the dropped plums. The rocksand the weeds were removed from the plum orchard prior to the test. Manually operated plumseed crusher picked-up the dropped plums from the ground and crushed them. The performanceof PSC was evaluated by applying 2.5 and 3.0 km/h travelling speeds, and controlling the gaps;18, and 28 mm intervals between plum pick-up discs. The test result showed the plum pick-uprate was 98±2.0%, and 92±5.3% with the machine travelling speed of 3.0 km/h in laboratory. Further, it changed to 95±8.7%, and 93±5.8% when the travelling speed was used 2.5 km/h. Inboth cases of test plum pick-up discs were maintained 18 mm, and 28 mm gap intervals,respectively. Furthermore, in field conditions, pursuing to similar gap intervals, the plum pick-uprate was 94±4.0%, and 92±2.0% with the speed of 3.0 km/h albeit it showed 92±4.0%, and90±3.5% when the speed was decreased to 2.5 km/h. The maximum plum pick-up rate wasfound at 18 mm disc intervals with 3.0 km/h travelling speeds. The crushing teeth were selected8 mm in height by repeated test to destroy the plum seeds. The result showed 100% crushingefficiency was facilitated to entire tests at 280 RPM crushing speeds regardless of plum sizesand shapes. This machine is preferred for the farmers to control the damage of plums bypreventing the propagation of the identified pests.
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Development of a sandy soil water content monitoring system for greenhouses using Internet of Things
Mohammod Ali,Md Razob Ali,Md Ashrafuzzaman Gulandaz,Md Asrakul Haque,Md Sazzadul Kabir,Sun-Ok Chung 사단법인 한국정밀농업학회 2023 정밀농업과학기술지 Vol.5 No.3
Precision water management is crucial for greenhouse agriculture to maximize crop yields in sandy soil. Due to the low water holding capacity, it is necessary to monitor the water movement in different depths of sandy soil to ensure effective irrigation. Therefore, this study aimed to develop a data acquisition (DAQ) system for sandy soil water content monitoring in an experimental soil bin inside a greenhouse, utilizing the capabilities of the Internet of Things (IoT). A drip irrigation system was implemented, arranged in four pipelines, spaced 60 cm apart, with drippers placed at 30 cm intervals along the pipeline. The overall system was installed in a sandy soil testing bin. A DAQ system was comprised of three basic units: sensor interfacing and circuit board, programming and sensor data acquisition, and data storage and monitoring. A microprocessor was used by interfacing a set of soil water content sensors, ambient temperature, and humidity sensors. The water content sensors were placed in the soil at different depths of 10, 20, 30, 40, and 50 cm, respectively. A microcontroller was used to collect and send the sensor data to monitor and store in memory. During the test, the maximum and minimum average of soil water content, ambient temperature, and humidity values were observed at 33.91±2.5 to 26.95±1.3%, 21.39±2.1 to 42.84±1.7°C, and 48.73±2.3 to 99.90±0.3%, respectively. The water content percentages were varied at different depths of sandy soil due to low water holding capacity. The developed automatic DAQ system would help with remote monitoring and control of greenhouse irrigation, considering the different crop characteristics and environmental conditions.
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ALI MOHAMMOD,이예슬,Md. Shaha Nur Kabir,강태경,이상희,정선옥 한국농업기계학회 2019 바이오시스템공학 Vol.44 No.4
Purpose A tractor-mounted cabbage collection system is under development to improve the mechanization rate of dryland crop production. The design of the cabbage-transportation part of a tractor-mounted Chinese cabbage collector is crucial for minimizing cabbage losses and for effective operation. Investigation of the effects of design parameters is useful to provide guidelines to fabricate the mechanism efficiently. Therefore, the present study aimed to conduct kinematic analysis of the cabbagetransportation part for optimum design of the Chinese cabbage collector. Methods The conceptual design of the Chinese cabbage collector mainly consists of the cabbage transportation, packaging, and unloading parts. Kinematic analysis of the cabbage-transportation part was conducted to investigate the effects of link lengths on the position, velocity, and acceleration of the mechanism. The performance of the cabbage-transportation part was simulated using a commercial software. The simulations were carried out using several cabbage sizes, cabbage transfer speeds, and link sizes at different locations on the cabbage-transportation part. The kinematic modeling and analytical procedure of the cabbagetransportation part were analyzed using mathematical models. Results The successful transfer of cabbage through the conveyor belt was influenced by the width of the cabbage-transportation part, cabbage size, and feeding speed. Consequently, some combinations of link lengths were not acceptable to convey the cabbages with the increase in the width of the transportation part. On the contrary, interferences between the links occurred with the decrease in the width of the transportation part. The simulated results showed that greater transferring speeds of cabbage increased the kinematic values, causing damage to the cabbages. The recommended and effective cabbage transferring speed, the length of the link, and the width of the transportation part were found to be 0.2 m/s, 190 to 200 mm, and 500 to 600 mm, respectively. Conclusion This study is useful for the design of an efficient cabbage-transportation part, and suitable improvements to the fabrication of the Chinese cabbage collector prototype.
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