Abstract The performance of grain combine harvesters is determined by three factors: threshing power, losses and fuel consumption. Loss can be reduced by separating processes and providing a suitable mathematical model for each of them by examining and measuring the factors influencing loss and optimizing their function. This model is then to be used for the purposes of controlling the system. An important process that has a significant impact on combine loss is the cleaning system. This study modelled and optimized the function of a cleaning system using response surface methodology (RSM). Feed rate, fan speed, and upper sieve opening were considered independent variables; the percentage of grain passage, content of materials-other-than-grains (MOG), and semi threshed cluster (s.t.c.) passing through the upper sieve were viewed as dependent variables. The results showed a significant effect of all three independent variables on the percentage of free grains with a probability level of 0.01. However, not all interactions were significant. Moreover, it was found that only mechanical factors had a significant effect on the percentage of s.t.c. passing, while fan speed and all interactions showed no significant effect. All three independent variables significantly affected the MOG content passing. An appropriate exponential model was found for all three dependent variables. Subsequently, the optimal conditions were determined for the maximum passage of free grains through the upper sieve and the minimum MOG at 3.33 kg·s−1 feed rate, 742 rpm fan speed, and an upper sieve with 10 mm openings with a desirability of 0.84, based on RSM modelling.
{"title":"Optimized Mathematical Model of a Grain Cleaning System Functioning in a Combine Harvester using Response Surface Methodology","authors":"Ali Mirzazadeh, S. Abdollahpour, Mehdi Hakimzadeh","doi":"10.2478/ata-2022-0004","DOIUrl":"https://doi.org/10.2478/ata-2022-0004","url":null,"abstract":"Abstract The performance of grain combine harvesters is determined by three factors: threshing power, losses and fuel consumption. Loss can be reduced by separating processes and providing a suitable mathematical model for each of them by examining and measuring the factors influencing loss and optimizing their function. This model is then to be used for the purposes of controlling the system. An important process that has a significant impact on combine loss is the cleaning system. This study modelled and optimized the function of a cleaning system using response surface methodology (RSM). Feed rate, fan speed, and upper sieve opening were considered independent variables; the percentage of grain passage, content of materials-other-than-grains (MOG), and semi threshed cluster (s.t.c.) passing through the upper sieve were viewed as dependent variables. The results showed a significant effect of all three independent variables on the percentage of free grains with a probability level of 0.01. However, not all interactions were significant. Moreover, it was found that only mechanical factors had a significant effect on the percentage of s.t.c. passing, while fan speed and all interactions showed no significant effect. All three independent variables significantly affected the MOG content passing. An appropriate exponential model was found for all three dependent variables. Subsequently, the optimal conditions were determined for the maximum passage of free grains through the upper sieve and the minimum MOG at 3.33 kg·s−1 feed rate, 742 rpm fan speed, and an upper sieve with 10 mm openings with a desirability of 0.84, based on RSM modelling.","PeriodicalId":43089,"journal":{"name":"Acta Technologica Agriculturae","volume":"25 1","pages":"20 - 26"},"PeriodicalIF":1.4,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41423167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
D. Hruby, L. Vacho, Ľ. Kubík, L. Tóth, Juraj Baláži, Patrik Kósa, Marián Kišev
Abstract This paper deals with the determination of the absolute errors of a small time of flight (ToF) distance sensor with respect to coloured surfaces at different illumination intensities. The aim was to determine the absolute error of the measured distance by the VL53L1X sensor when set to short-mode and long-mode at different illumination intensities: 10 lx and 350 lx depending on the coloured surface using regression analysis methods. The research was performed using 7 colour samples with different spectral colours determined according to the CIE Lab colour model. Based on the performed experiments, it was found that the error at different sensor settings, change of colour surface and different illumination intensity is approximated by a linear function only up to a certain measured distance. The process is influenced by proposed factors such as: illumination intensity, coloured surface with different illumination reflectance and signal-noise parameters of the tested sensor during the experiment.
{"title":"Characteristics of Distance Errors of Infrared Sensor Relation to Colour Surfaces","authors":"D. Hruby, L. Vacho, Ľ. Kubík, L. Tóth, Juraj Baláži, Patrik Kósa, Marián Kišev","doi":"10.2478/ata-2022-0007","DOIUrl":"https://doi.org/10.2478/ata-2022-0007","url":null,"abstract":"Abstract This paper deals with the determination of the absolute errors of a small time of flight (ToF) distance sensor with respect to coloured surfaces at different illumination intensities. The aim was to determine the absolute error of the measured distance by the VL53L1X sensor when set to short-mode and long-mode at different illumination intensities: 10 lx and 350 lx depending on the coloured surface using regression analysis methods. The research was performed using 7 colour samples with different spectral colours determined according to the CIE Lab colour model. Based on the performed experiments, it was found that the error at different sensor settings, change of colour surface and different illumination intensity is approximated by a linear function only up to a certain measured distance. The process is influenced by proposed factors such as: illumination intensity, coloured surface with different illumination reflectance and signal-noise parameters of the tested sensor during the experiment.","PeriodicalId":43089,"journal":{"name":"Acta Technologica Agriculturae","volume":"25 1","pages":"40 - 46"},"PeriodicalIF":1.4,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45535079","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract The paper presented examines the dynamics of wear of restored parts using different materials for the friction pair. The pair of crankshaft and sliding bearing largely determines the machine service life – although their overall wear index is less than 1%, it can still lead to a large number of failures and malfunctions. Vibrating arc overlaying in a shield of gas mixture of 60% argon and 40% carbon dioxide was used for restoring the surface of rollers. Subsequently, these were treated by heating with high-frequency current (HFC) and lowered to a hardness of 55±2 HRC and ground to the final size. It was found that the antifriction coating of plain bearings with electrochemical lead alloy ЕО92 showed excellent performance and insignificant wear in combination with reference material St45 and welded coating DUR500. In combination with electrochemical lead alloy ЕО92, the welded coating DUR500 showed a significantly higher wear on actuation compared to the reference material St45 at sliding friction. The relative wear resistance enhancement of crankshafts and bearings by restorative coatings represents an essential measure, as their service life can be prolonged by 20–50% in contrast to the new parts without restorative coatings.
{"title":"Abrasion Resistance of Restorative Coatings for Crankshafts and Bearings in Agricultural Machinery","authors":"P. Kangalov, M. Nikolov, I. Todorov","doi":"10.2478/ata-2022-0005","DOIUrl":"https://doi.org/10.2478/ata-2022-0005","url":null,"abstract":"Abstract The paper presented examines the dynamics of wear of restored parts using different materials for the friction pair. The pair of crankshaft and sliding bearing largely determines the machine service life – although their overall wear index is less than 1%, it can still lead to a large number of failures and malfunctions. Vibrating arc overlaying in a shield of gas mixture of 60% argon and 40% carbon dioxide was used for restoring the surface of rollers. Subsequently, these were treated by heating with high-frequency current (HFC) and lowered to a hardness of 55±2 HRC and ground to the final size. It was found that the antifriction coating of plain bearings with electrochemical lead alloy ЕО92 showed excellent performance and insignificant wear in combination with reference material St45 and welded coating DUR500. In combination with electrochemical lead alloy ЕО92, the welded coating DUR500 showed a significantly higher wear on actuation compared to the reference material St45 at sliding friction. The relative wear resistance enhancement of crankshafts and bearings by restorative coatings represents an essential measure, as their service life can be prolonged by 20–50% in contrast to the new parts without restorative coatings.","PeriodicalId":43089,"journal":{"name":"Acta Technologica Agriculturae","volume":"25 1","pages":"27 - 32"},"PeriodicalIF":1.4,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44797225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract Presented paper aimed to employ the near infrared spectroscopy (NIRS) as a rapid and simultaneous method for quality assessment of biochar samples made of agricultural waste materials (chatter bamboo; firewood; coconut shell). Spectral data were obtained in the wavelength range of 1000–2500 nm, while actual fixed carbon, volatile matter and ash contents were observed using standard chemical analysis. Moreover, prediction models were established using two different regression approaches: principal component regression and partial least square regression. Prediction performances were evaluated by assessment of several statistical indicators, such as correlation coefficient and ratio of prediction to deviation index. The results showed that PLS generated a better prediction performance with maximum r coefficient and RPD index – 0.89 and 2.26 for fixed carbon; 0.93 and 2.84 for volatile matter; 0.90 and 2.30 for ash content. Based on the results acquired, it can be concluded that NIRS is usable for the purposes of a rapid and simultaneous approach to biochar quality determination.
{"title":"Near Infrared Spectroscopy: Rapid and Simultaneous Approach to Predict the Fixed Carbon, Volatile Matter and Ash Contents in Biochar Produced from Agricultural Residues","authors":"A. A. Munawar, Devianti, P. Satriyo, S. A. Bahari","doi":"10.2478/ata-2022-0001","DOIUrl":"https://doi.org/10.2478/ata-2022-0001","url":null,"abstract":"Abstract Presented paper aimed to employ the near infrared spectroscopy (NIRS) as a rapid and simultaneous method for quality assessment of biochar samples made of agricultural waste materials (chatter bamboo; firewood; coconut shell). Spectral data were obtained in the wavelength range of 1000–2500 nm, while actual fixed carbon, volatile matter and ash contents were observed using standard chemical analysis. Moreover, prediction models were established using two different regression approaches: principal component regression and partial least square regression. Prediction performances were evaluated by assessment of several statistical indicators, such as correlation coefficient and ratio of prediction to deviation index. The results showed that PLS generated a better prediction performance with maximum r coefficient and RPD index – 0.89 and 2.26 for fixed carbon; 0.93 and 2.84 for volatile matter; 0.90 and 2.30 for ash content. Based on the results acquired, it can be concluded that NIRS is usable for the purposes of a rapid and simultaneous approach to biochar quality determination.","PeriodicalId":43089,"journal":{"name":"Acta Technologica Agriculturae","volume":"25 1","pages":"1 - 6"},"PeriodicalIF":1.4,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42104785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
V. Shcherbak, L. Ganushchak-Yefimenko, O. Nifatova, J. Kosiba, T. Holota, V. Yatsenko
Abstract The purpose of this study was to determine the possibility of practical use of the Hackathon Platform for ecological protection of the university biosystem to prevent a new outbreak of the COVID-19 pandemic. The COVID-19 pandemic significantly affects companies and population’s behaviour. The most significant change occurred in the attitude of companies to the environment from technical and technological points of view. To increase their production sustainability, these companies are looking at the possibilities of waste recovery through sustainable recycling, or recovery of waste as a source of secondary raw material. One of the simplest ways is to use agricultural waste for energy purposes, bringing bioenergy to the forefront as a new area of Industry 4.0. The ALARA model was used to assess the quality of six biosystem components (atmospheric air, water resources, soil layer, the level of land pollution with chemicals and littering by the unauthorized dumps; sufficient volume of green planting on the territory). This allowed the development of management decisions and environmental protection measures based on the system of calculated indicators of potential environmental damage for each of six biosystem components. The forecast of plan implementation: the quality of four from among six biosystem components (atmospheric air, water resources, soil layer, sufficient volume of green planting on the territory) will increase on average by 30–40%. A minor improvement in the quality of the other biosystem components (approx. by 10%) raises concerns about the high probability of a new outbreak of the COVID-19 pandemic.
{"title":"The Use of University Biosystem Environmental Protection Platform to Prevent a New Outbreak of the COVID-19 Pandemic","authors":"V. Shcherbak, L. Ganushchak-Yefimenko, O. Nifatova, J. Kosiba, T. Holota, V. Yatsenko","doi":"10.2478/ata-2022-0008","DOIUrl":"https://doi.org/10.2478/ata-2022-0008","url":null,"abstract":"Abstract The purpose of this study was to determine the possibility of practical use of the Hackathon Platform for ecological protection of the university biosystem to prevent a new outbreak of the COVID-19 pandemic. The COVID-19 pandemic significantly affects companies and population’s behaviour. The most significant change occurred in the attitude of companies to the environment from technical and technological points of view. To increase their production sustainability, these companies are looking at the possibilities of waste recovery through sustainable recycling, or recovery of waste as a source of secondary raw material. One of the simplest ways is to use agricultural waste for energy purposes, bringing bioenergy to the forefront as a new area of Industry 4.0. The ALARA model was used to assess the quality of six biosystem components (atmospheric air, water resources, soil layer, the level of land pollution with chemicals and littering by the unauthorized dumps; sufficient volume of green planting on the territory). This allowed the development of management decisions and environmental protection measures based on the system of calculated indicators of potential environmental damage for each of six biosystem components. The forecast of plan implementation: the quality of four from among six biosystem components (atmospheric air, water resources, soil layer, sufficient volume of green planting on the territory) will increase on average by 30–40%. A minor improvement in the quality of the other biosystem components (approx. by 10%) raises concerns about the high probability of a new outbreak of the COVID-19 pandemic.","PeriodicalId":43089,"journal":{"name":"Acta Technologica Agriculturae","volume":"25 1","pages":"47 - 52"},"PeriodicalIF":1.4,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48661316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract The efficient biomass energy use is a key prerequisite for the implementation of renewable energy development strategies on a regional level. For the highly efficient energy use in the combustion process, it is necessary to properly regulate the process based on its precise description. The paper aim is to evaluate whether dynamic time warping (DTW) methods can be used for this description, as well as for the recognition of the specific operating state of a biomass boiler. For the DTW analysis, operating records of more than 10 hours of a laboratory biomass boiler (P = 25 kW) were used, including an emission analysis, for which the operating modes were intentionally alternated in order to identify the stable and transient states of boiler operation. Based on the results, it can be stated that the identical partial operating sections of the controlled variables can be reliably identified in the operating variables of boiler by means of the DTW method, since its manifestations of operating regulation showed compliance with the given operating state, and it is possible to identify a partial quantity for estimating the total operating boiler state.
{"title":"Use of Dynamic Time Warping for Description of Combustion Process in a Biomass Boiler","authors":"Martin Kucín, M. Fajman, A. Polcar, J. Čupera","doi":"10.2478/ata-2022-0006","DOIUrl":"https://doi.org/10.2478/ata-2022-0006","url":null,"abstract":"Abstract The efficient biomass energy use is a key prerequisite for the implementation of renewable energy development strategies on a regional level. For the highly efficient energy use in the combustion process, it is necessary to properly regulate the process based on its precise description. The paper aim is to evaluate whether dynamic time warping (DTW) methods can be used for this description, as well as for the recognition of the specific operating state of a biomass boiler. For the DTW analysis, operating records of more than 10 hours of a laboratory biomass boiler (P = 25 kW) were used, including an emission analysis, for which the operating modes were intentionally alternated in order to identify the stable and transient states of boiler operation. Based on the results, it can be stated that the identical partial operating sections of the controlled variables can be reliably identified in the operating variables of boiler by means of the DTW method, since its manifestations of operating regulation showed compliance with the given operating state, and it is possible to identify a partial quantity for estimating the total operating boiler state.","PeriodicalId":43089,"journal":{"name":"Acta Technologica Agriculturae","volume":"25 1","pages":"33 - 39"},"PeriodicalIF":1.4,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41999653","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Politeknik Pertanian Negeri Payakumbuh menghasilkan produk kreatif dan inovatif. Namun demikian hasil produk ini hanya terbatas di lingkungan kampus. Penelitian ini fokus pada pemasaran dan penjualan produk yang dihasilkan dengan memanfaatkan internet marketing dengan nama Polimart. Penggunaan aplikasi ini berbasis platform Opencart. Polimart sebagai media pemasaran dapat meningkatkan motivasi, daya saing mahasiswa dalam membuat produk yang lebih kreatif lagi, karena produk yang dihasilkan dapat dikenal pada masyarakat luas sehingga memberikan kontribusi secara langsung dalam perkembangan usaha.
{"title":"Pengembangan Aplikasi Internet Marketing Sebagai Media Pemasaran Produk Inovatif Mahasiswa","authors":"Dwi Tiara Puspa, Indah Purnama Sari, Putri Amelia Sari, Husna Fatimah, I. Laksmana","doi":"10.55043/technologica.v1i1.32","DOIUrl":"https://doi.org/10.55043/technologica.v1i1.32","url":null,"abstract":"Politeknik Pertanian Negeri Payakumbuh menghasilkan produk kreatif dan inovatif. Namun demikian hasil produk ini hanya terbatas di lingkungan kampus. Penelitian ini fokus pada pemasaran dan penjualan produk yang dihasilkan dengan memanfaatkan internet marketing dengan nama Polimart. Penggunaan aplikasi ini berbasis platform Opencart. Polimart sebagai media pemasaran dapat meningkatkan motivasi, daya saing mahasiswa dalam membuat produk yang lebih kreatif lagi, karena produk yang dihasilkan dapat dikenal pada masyarakat luas sehingga memberikan kontribusi secara langsung dalam perkembangan usaha.","PeriodicalId":43089,"journal":{"name":"Acta Technologica Agriculturae","volume":"14 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79406552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-18DOI: 10.55043/technologica.v1i1.31
Mardhiah Fadhli, R. Putri
Permasalahan tumpukan sampah illegal sangat meresahkan warga. Tumpukan sampah illegal merusak pemandangan, menimbulkan bau yang tidak sedap, dan menyebabkan pencemaran lingkungan bahkan bisa menimbulkan wabah/penyakit. Banyaknya tumpukan sampah yang dibuang di tempat-tempat illegal dan masih kurangnya sarana dan prasarana yang dimiliki oleh pemerintah dalam pengelolaan sampah menyebabkan permasalahan pembuangan sampah menjadi hal yang perlu di tangani dan dikelola dengan baik oleh pemerintah. Perlunya teknologi yag dapat membantu pemerintah dalam hal ini adalah Dinas Lingkungan Hidup dan kebersihan (DLHK) memerlukan aplikasi yang terintegrasi dalam menampung pengaduan masyarakat terkait pengelolaan sampah. Berdasarkan kondisi tersebut, maka perlu dibangun sebuah aplikasi pengaduan lokasi pembuangan sampah illegal berbasis Android. Masayarakat Kota Pekanbaru dapat melakukan pengaduan melalui aplikasi dengan menginputkan koordinat titik lokasi pembungan sampah illegal berdasarkan map, dan selanjutnya pihak admin DLHK dapat melihat data pengaduan dan mengubah status pelaporan untuk segera di jemput berdasarkan titik lokasi tersebut. Aplikasi telah berhasil dibangun dan diujikan kepada masyarakat kota Pekanbaru sebanyak 30 responden dengan menggunakan metode usability testing. Usability testing dilakukan terhadap empat indikator penilaian, yaitu usefulness, ease of use, ease of learning dan user satisfaction. hasil pengujian adalah 90,82% menyatakan bahwa aplikasi usefullness, 90,99% ease of use, 87,77% ease of learning, dan 89,3% user satisfaction
{"title":"Rancang Bangun Aplikasi Pengaduan Tempat Pembuangan Sampah Ilegal Berbasis Map","authors":"Mardhiah Fadhli, R. Putri","doi":"10.55043/technologica.v1i1.31","DOIUrl":"https://doi.org/10.55043/technologica.v1i1.31","url":null,"abstract":"Permasalahan tumpukan sampah illegal sangat meresahkan warga. Tumpukan sampah illegal merusak pemandangan, menimbulkan bau yang tidak sedap, dan menyebabkan pencemaran lingkungan bahkan bisa menimbulkan wabah/penyakit. Banyaknya tumpukan sampah yang dibuang di tempat-tempat illegal dan masih kurangnya sarana dan prasarana yang dimiliki oleh pemerintah dalam pengelolaan sampah menyebabkan permasalahan pembuangan sampah menjadi hal yang perlu di tangani dan dikelola dengan baik oleh pemerintah. Perlunya teknologi yag dapat membantu pemerintah dalam hal ini adalah Dinas Lingkungan Hidup dan kebersihan (DLHK) memerlukan aplikasi yang terintegrasi dalam menampung pengaduan masyarakat terkait pengelolaan sampah. Berdasarkan kondisi tersebut, maka perlu dibangun sebuah aplikasi pengaduan lokasi pembuangan sampah illegal berbasis Android. Masayarakat Kota Pekanbaru dapat melakukan pengaduan melalui aplikasi dengan menginputkan koordinat titik lokasi pembungan sampah illegal berdasarkan map, dan selanjutnya pihak admin DLHK dapat melihat data pengaduan dan mengubah status pelaporan untuk segera di jemput berdasarkan titik lokasi tersebut. Aplikasi telah berhasil dibangun dan diujikan kepada masyarakat kota Pekanbaru sebanyak 30 responden dengan menggunakan metode usability testing. Usability testing dilakukan terhadap empat indikator penilaian, yaitu usefulness, ease of use, ease of learning dan user satisfaction. hasil pengujian adalah 90,82% menyatakan bahwa aplikasi usefullness, 90,99% ease of use, 87,77% ease of learning, dan 89,3% user satisfaction","PeriodicalId":43089,"journal":{"name":"Acta Technologica Agriculturae","volume":"12 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83045308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-18DOI: 10.55043/technologica.v1i1.30
Arif Rizki Marsa, Rosda Syelly, S. Siska, Noviardi, I. Laksmana
Alergi merupakan salah satu masalah yang umum dalam dunia medis, khususnya alergi yang disebabkan oleh susu sapi pada anak. Penelitian ini membuat sebuah aplikasi yang mampu mendiagnosa penyakit alergi susu sapi pada anak-anak, menerapkan sistem pakar menggunakan metode inferensi yang di kenal dengan backward chaining. Backward chaining menerapkan teknik pelacakan dimulai dengan pendekatan Akibat Alergi, senanjutnya akan mencari gejala-gejala yang memiliki kesimpulan yang mengarah pada penyakit, kemudian dicocokkan menggunakan rule IF-Then. Berdasarkan gejala yang di kumpulkan maka akan didapatkan outputnya berupa alergi berat, alergi sedang dan alergi ringan. Aplikasi yang dibuat berbasis web yang terhubung dengan jaringan internet sehingga dapat membantu user/pengguna untuk mengetahui jenis alergi dengan mudah
{"title":"Rancang Bangun Sistem Pakar Diagnosa Alergi Susu Sapi Pada Anak","authors":"Arif Rizki Marsa, Rosda Syelly, S. Siska, Noviardi, I. Laksmana","doi":"10.55043/technologica.v1i1.30","DOIUrl":"https://doi.org/10.55043/technologica.v1i1.30","url":null,"abstract":"Alergi merupakan salah satu masalah yang umum dalam dunia medis, khususnya alergi yang disebabkan oleh susu sapi pada anak. Penelitian ini membuat sebuah aplikasi yang mampu mendiagnosa penyakit alergi susu sapi pada anak-anak, menerapkan sistem pakar menggunakan metode inferensi yang di kenal dengan backward chaining. Backward chaining menerapkan teknik pelacakan dimulai dengan pendekatan Akibat Alergi, senanjutnya akan mencari gejala-gejala yang memiliki kesimpulan yang mengarah pada penyakit, kemudian dicocokkan menggunakan rule IF-Then. Berdasarkan gejala yang di kumpulkan maka akan didapatkan outputnya berupa alergi berat, alergi sedang dan alergi ringan. Aplikasi yang dibuat berbasis web yang terhubung dengan jaringan internet sehingga dapat membantu user/pengguna untuk mengetahui jenis alergi dengan mudah","PeriodicalId":43089,"journal":{"name":"Acta Technologica Agriculturae","volume":"23 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76597865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-18DOI: 10.55043/technologica.v1i1.29
Muchlisinalahuddin, Pingki Pernandes, Riza Muharni
Tomat merupakan salah satu tanaman hortikultura yang dapat di olah menjadi saus tomat untuk meningkatkan nilai ekonomis buah tomat. Kelompok tani Usaha bersama kelompok mandiri di Nagari batu palano kabupaten agam mengolah tomat menjadi saus tomat. Dalam pengolahan saus tomat membutuhkan waktu 6 jam sampai 8 jam, hal tersebut disebabkan karena material pengukus berukuran tebal yaitu 1 mm dan jarak antar dandang luar dan dandang dalam berukuran 5 cm. untuk mengatasi hal tersebut dilakukan modifikasi dengan mengganti material berukuran 0,6 mm dan jarak antar dandang menjadi 2,5 cm, kemudian dilakukan pengujian dengan faribel api besar, api sedang dan api kecil. Maka didapat perbandingan waktu laju perpindahan panas antara dandang UBK Mandiri dengan dandang modifikasi. Dengan api besar dandang UBK Mandiri membutuhkan waktu untuk mendidihkan air hingga titik didih 95 oC selama 2 jam 15 menit, dandang modifikasi 1 jam 30 menit. Dengan menggunakan api sedang dandang UBK Mandiri membutuhkan waktu 4 jam, dandang modifikasi 2 jam 30 menit. Dengan api sedang dandang UBK Mandiri membutuhkan waku 6 jam, dandang modifikasi membutuhkan waktu 4 jam 45 menit. Jadi dalam proses memdidihkan iar hingga titik didih dandang modifikasi lebih cepat dari dandang UBK Mandiri.
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