Engineering in Agriculture, Environment and Food最新文献_第8页

Classification of macronutrient deficiencies in maize plants using optimized multi class support vector machines 基于优化多类支持向量机的玉米宏量营养素缺乏症分类

Engineering in Agriculture, Environment and Food Pub Date : 2019-01-01 Epub Date: 2018-11-24 DOI: 10.1016/j.eaef.2018.11.002

N. Leena , K.K. Saju

引用次数: 8

Automated quality assessment of cocoons using a smart camera based system 使用基于智能摄像头的系统对茧进行自动质量评估

Engineering in Agriculture, Environment and Food Pub Date : 2018-10-01 Epub Date: 2018-05-22 DOI: 10.1016/j.eaef.2018.05.002

P.P. Prasobhkumar , C.R. Francis , Sai Siva Gorthi

{"title":"Automated quality assessment of cocoons using a smart camera based system","authors":"P.P. Prasobhkumar , C.R. Francis , Sai Siva Gorthi","doi":"10.1016/j.eaef.2018.05.002","DOIUrl":"https://doi.org/10.1016/j.eaef.2018.05.002","url":null,"abstract":"<div>In this paper, the development of a novel quality assessment system for Bombyx mori L. cocoons is presented, which offers significant advantages over the conventional manual method (subjective, tests only few sample cocoons, involves health hazards) in terms of labor friendliness, accuracy, speed and running cost. This system consisted of a conditioned illumination unit, image acquisition and processing unit realized with a smart camera. The camera acquired the images of cocoons and by image processing algorithms (morphological operation, image enhancement, and ellipse fitting), quantitative measurements of size, shape and stain color were accomplished and automatically classified each cocoon into four defective categories and good cocoons. The system not only highlighted each category on camera screen but also displayed statistical information such as counts of cocoons in each category and overall defect percentage. In addition to that, the system was programmed to alert the user when the defect percentage exceeded a particular threshold value. The results showed that the system was capable of assessing 96 cocoons per second acquired within a single frame. It showed 100% accuracy on a sample size of 137 cocoons. To expose whole cocoon surface, they were rolled over a slope at a speed of eight rotations per second, while the system captured and processed the video of the whole surface. This process enabled in meeting the same level of quality assessment standard and counting accuracy as that of manually exposing the defective areas to the field of view when acquired in a single image.</div>","PeriodicalId":38965,"journal":{"name":"Engineering in Agriculture, Environment and Food","volume":"11 4","pages":"Pages 202-210"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.eaef.2018.05.002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91701963","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}

引用次数: 6

Respiration rate model and modified atmosphere packaging of bhimkol banana 希米科尔香蕉呼吸速率模型及改良气调包装

Engineering in Agriculture, Environment and Food Pub Date : 2018-10-01 Epub Date: 2018-04-22 DOI: 10.1016/j.eaef.2018.04.004

Tabli Ghosh, Kshirod Kumar Dash

{"title":"Respiration rate model and modified atmosphere packaging of bhimkol banana","authors":"Tabli Ghosh, Kshirod Kumar Dash","doi":"10.1016/j.eaef.2018.04.004","DOIUrl":"10.1016/j.eaef.2018.04.004","url":null,"abstract":"<div>This area of study gives the consequence of respiration rate of bhimkol (Musa balbisiana) at different storage temperatures (15–35 °C). The relationship between O₂ step down rate and CO₂ step up rate was ascertained using gas measuring data set collected by enclosing bhimkol in respirometer and measuring head space O₂ and CO₂ concentration over time. A mathematical method was used to predict the influence of storage temperature and time on respiration rate of bhimkol and the best fitted model was subsequently implemented to design modified atmospheric packaging for bhimkol. The experimental data set were used to acquire two different models namely regression function model and enzyme kinetics model and among both the models the enzyme kinetics model was found to be the better fitted model to predict the respiration rate of bhimkol banana. Modified atmospheric packaging reckons the adaptation of gas surroundings within the package by means of normal interchange involving the respiration rate of bhimkol and gas diffusion through the package material. Based on the respiration rate and permeability of the packaging materials, the best suitable packaging films obtained for the modified atmospheric packaging of bhimkol was found to be polypropylene, and polyvinyl chloride film. The explicated model furnishes an efficient technique for selection and design of suitable packaging material for bhimkol banana.</div>","PeriodicalId":38965,"journal":{"name":"Engineering in Agriculture, Environment and Food","volume":"11 4","pages":"Pages 186-195"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.eaef.2018.04.004","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131557775","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}

引用次数: 23

3D reconstruction of apple fruits using consumer-grade RGB-depth sensor 使用消费级rgb深度传感器对苹果果实进行三维重建

Engineering in Agriculture, Environment and Food Pub Date : 2018-10-01 Epub Date: 2018-02-10 DOI: 10.1016/j.eaef.2018.02.005

Satoshi Yamamoto , Manoj Karkee , Yuichi Kobayashi , Natsuki Nakayama , Shogo Tsubota , Loan Nguyen Thi Thanh , Tomoko Konya

引用次数: 14

Drying of Plectranthus amboinicus (lour) spreng leaves by using oven dryer 用烘箱干燥机对凤仙花叶片进行干燥

Engineering in Agriculture, Environment and Food Pub Date : 2018-10-01 Epub Date: 2018-09-03 DOI: 10.1016/j.eaef.2018.08.002

F. Nurafifah, A. Luqman Chuah, M.A. Puteri Farah Wahida

{"title":"Drying of Plectranthus amboinicus (lour) spreng leaves by using oven dryer","authors":"F. Nurafifah, A. Luqman Chuah, M.A. Puteri Farah Wahida","doi":"10.1016/j.eaef.2018.08.002","DOIUrl":"10.1016/j.eaef.2018.08.002","url":null,"abstract":"<div>Plectranthus amboinicus (lour) Spreng is the herbal species belongs to the family of Lamiaceae. The leaves of this species contain Thymol which is the main bioactive compound that has anti-inflammatory, antibacterial, antifungal and antioxidant properties. In this study, oven dryer has been chosen due to its easy handling and simple operation. The Plectranthus amboinicus leaves were dried under different temperatures at 50 °C, 60 °C, 70 °C and 80 °C using oven dryer. Drying took place at constant rate and falling rate period. The moisture ratio data were fitted to six thin layer models chosen from literature. Among these models, Midilli and Kucuk model was found to be the best model to represent the drying behaviour of Plectranthus amboinicus leaves due to the highest value of coefficient of determination (R2) and lowest values of root mean square error (RMSE) and reduced Chi-Square (χ2). Besides, the effective diffusivities varied from <math><mrow><mn>1.167</mn><mo>×</mo><msup><mrow><mn>10</mn></mrow><mrow><mo>−</mo><mn>10</mn></mrow></msup></mrow></math> to <math><mrow><mn>4.451</mn><mo>×</mo><msup><mrow><mn>10</mn></mrow><mrow><mo>−</mo><mn>10</mn></mrow></msup></mrow></math> m2/s which was within the general range for food material. Ultrasound-assisted extraction (UAE) was performed to analyse the quality of dried P. amboinicus leaves with ethanol as the solvent using probe sonicator (130 Watts, 20 kHz) with solid to solvent ratio 1:20 for 30 min. From gas chromatography analysis, leaves dried at 70 °C gave the highest concentration of thymol compared to drying at other temperatures.</div>","PeriodicalId":38965,"journal":{"name":"Engineering in Agriculture, Environment and Food","volume":"11 4","pages":"Pages 239-244"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.eaef.2018.08.002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134239632","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}

引用次数: 15

A novel technique for removing radiocesium from bamboo, and effects of bamboo chip composts on soil properties and crop growth 竹片堆肥去除竹子中放射性元素的新技术及其对土壤性质和作物生长的影响

Engineering in Agriculture, Environment and Food Pub Date : 2018-10-01 Epub Date: 2018-09-01 DOI: 10.1016/j.eaef.2018.08.005

Dikkumburage Jasintha Jayasanka , Masakazu Komatsuzaki , Yuta Hoshino , Hiroichi Seki , Noriyuki Kumazawa

{"title":"A novel technique for removing radiocesium from bamboo, and effects of bamboo chip composts on soil properties and crop growth","authors":"Dikkumburage Jasintha Jayasanka , Masakazu Komatsuzaki , Yuta Hoshino , Hiroichi Seki , Noriyuki Kumazawa","doi":"10.1016/j.eaef.2018.08.005","DOIUrl":"10.1016/j.eaef.2018.08.005","url":null,"abstract":"<div>Bamboo forests in the Fukushima area were contaminated with radiocesium following the Fukushima Daiichi Nuclear Power Plant (FDNPP) accident. There is a need to develop technologies for remediation of contaminated bamboo forests. However, remediation technologies such as incineration of contaminated plants, which not only harms the environment but also destroy the local resources. This research introduces a novel technique, which reduces radiocesium by boiling the thinned bamboo, with the aim of commercializing the product as bamboo chip compost. We compared the 134Cs and 137Cs contents of boiled and unboiled bamboo chips, and also evaluated the effect of treating the bamboo boiled water extracts with bentonite. In addition, we compared the radiocesium changes and nutrient statuses of bamboo chip composts derived under aerobic and anaerobic conditions. Furthermore, we evaluated changes in soil properties and the growth of komatsuna (Brassica rapa var. perviridis) following application of final composts at 0, 2.5, 5, and 10 kg m−2. We found that boiling bamboo with 3% NaHCO3 for 30 min decreased the Cs content by approximately 52%, and that the 1% bentonite treatment reduced Cs contamination in water extract by 75%. The compost amendments containing boiled bamboo mixed with sub-materials under anaerobic conditions resulted in significantly lower soil Cs concentrations, than other compost amendments. The addition of aerobic composts consisting of boiled bamboo mixed with sub-materials resulted in significantly higher soil N, P levels and Komatsuna growth, with the plants containing radiocesium concentrations of <0.1 Bq kg−1.</div>","PeriodicalId":38965,"journal":{"name":"Engineering in Agriculture, Environment and Food","volume":"11 4","pages":"Pages 262-271"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.eaef.2018.08.005","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134229558","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}

引用次数: 0

Mathematical empirical models of thin-layer airflow drying kinetics of pumpkin slice 南瓜片薄层气流干燥动力学的数学经验模型

Engineering in Agriculture, Environment and Food Pub Date : 2018-10-01 Epub Date: 2018-07-17 DOI: 10.1016/j.eaef.2018.07.003

A. Benseddik , A. Azzi , M.N. Zidoune , K. Allaf

{"title":"Mathematical empirical models of thin-layer airflow drying kinetics of pumpkin slice","authors":"A. Benseddik , A. Azzi , M.N. Zidoune , K. Allaf","doi":"10.1016/j.eaef.2018.07.003","DOIUrl":"10.1016/j.eaef.2018.07.003","url":null,"abstract":"<div>This paper describes a 3-stage simulation method to i/extract from experimental results the best validated empirical models of drying kinetics, ii/establish the correlations between the model coefficients and the drying airflow parameters of temperature and velocity, and the sample thickness, and then ii/use other experimental results to compare and confirm the identified model. This simulation study was applied to the case of pumpkin slices using the Response Surface Methodology (RSM) to describe the moisture ratio <math><mrow><mi>M</mi><mi>R</mi></mrow></math> versus time. Seven thin-layer drying models including Newton, Page, Modified Page, Handerson and Pabis, Logarithmic, Midilli-Kucuk and Approximation of Diffusion models were fitted to experimental data, using nonlinear regression. It has been found that Approximation of Diffusion, Page, Midilli-Kucuk yielded the best fit. Then, best three models were selected and examined intensively, for slice thickness ranged between 0.2 and 1.4 cm, within the airflow temperature ranges (40–80 °C) and velocity (2–15 m/s). Midilli-Kucuk model gave the best correlation between the experimental and estimated data. The relationships between the model parameters (<math><mrow><mi>k</mi><mo>,</mo><mspace></mspace><mi>n</mi><mo>,</mo><mspace></mspace><mi>a</mi><mo>,</mo></mrow></math> and <math><mi>b</mi></math>) and the drying conditions, slice thickness, and time were determined. Thus, this empirical Midilli-Kucuk thin-layer drying kinetic model including the drying conditions can accurately described with a good fitness predict and simulate the moisture ratio value for a drying process of pumpkin slices.</div>","PeriodicalId":38965,"journal":{"name":"Engineering in Agriculture, Environment and Food","volume":"11 4","pages":"Pages 220-231"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.eaef.2018.07.003","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130458472","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}

引用次数: 24

Design and assessment of an automated sweet pepper seed sorting machine 甜椒种子自动分选机的设计与评价

Engineering in Agriculture, Environment and Food Pub Date : 2018-10-01 Epub Date: 2018-05-21 DOI: 10.1016/j.eaef.2018.05.001

Kiattisin Kanjanawanishkul, Prarin Chupawa, Thanaphat Nuantoon

{"title":"Design and assessment of an automated sweet pepper seed sorting machine","authors":"Kiattisin Kanjanawanishkul, Prarin Chupawa, Thanaphat Nuantoon","doi":"10.1016/j.eaef.2018.05.001","DOIUrl":"https://doi.org/10.1016/j.eaef.2018.05.001","url":null,"abstract":"<div>Each year, large volumes of sweet pepper seeds (Capsicum annuum L.) are exported from Thailand to many countries. As a result, seed quality is very important. Sweet pepper seeds are very small, both in dimension and mass, therefore they are very difficult to inspect manually. Thus, we designed and constructed an automated sweet pepper seed sorting machine. It consists of three main stations: 1) seed feeder, 2) seed inspector using a camera and 3) seed sorter using a vacuum suction system. To transport seeds through each station, we designed a circular rotating plate with radial rows of blind holes. This allows all three stations to process a row of seeds in parallel. To identify discolored seeds, images were captured and processed to detect dark areas on the surface of the seeds. Our machine accurately sorted 90.9% of input seeds. The maximum potential capacity (in terms of seed processing rate) was 16,500 seeds per hour and we achieved actual rates of approximately 12,700 seeds per hour or roughly twice as fast as an experienced operator. Thus, this machine is faster and more accurate than human operators and can replace them.</div>","PeriodicalId":38965,"journal":{"name":"Engineering in Agriculture, Environment and Food","volume":"11 4","pages":"Pages 196-201"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.eaef.2018.05.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91656620","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}

引用次数: 5

Artificial neural Network−Genetic algorithm modeling for moisture content prediction of savory leaves drying process in different drying conditions 人工神经网络−遗传算法建模在不同干燥条件下香叶干燥过程中水分含量预测

Engineering in Agriculture, Environment and Food Pub Date : 2018-10-01 Epub Date: 2018-08-04 DOI: 10.1016/j.eaef.2018.08.001

Amin Taheri-Garavand , Venkatesh Meda , Leila Naderloo

{"title":"Artificial neural Network−Genetic algorithm modeling for moisture content prediction of savory leaves drying process in different drying conditions","authors":"Amin Taheri-Garavand , Venkatesh Meda , Leila Naderloo","doi":"10.1016/j.eaef.2018.08.001","DOIUrl":"10.1016/j.eaef.2018.08.001","url":null,"abstract":"<div>In this study, the application of a versatile approach for modeling and prediction of the moisture content of dried savory leaves using hybrid artificial neural network-genetic algorithm has been presented. Genetic Algorithm was used in order to find the best Feed Forward Neural Network (FFNN) structure for modeling and estimation of moisture content in the drying process of savory leaves. The experiments were performed at three air temperatures of 40, 60 and 80 °C and at three levels of relative humidity 20%, 30% and 40% and air velocity of 1, 1.5 and 2.0 m/s for drying the savory leaves in the forced conductive dryer. Optimized neural network by GA had two hidden layers with 9 and 17 neurons in first and second hidden layers, respectively. Mean Square Error (MSE) value (0.000094606) and correlation coefficient (0.9992) of FFNN-GA experiments showed that moisture content can be accurately predicted from the input variables: air temperature, airflow velocity, relative humidity and drying time. Moreover, results showed that the optimized neural network topology could denote the superior ability of this intelligent model for on-line prediction of the moisture content of Savory leaves in different drying conditions.</div>","PeriodicalId":38965,"journal":{"name":"Engineering in Agriculture, Environment and Food","volume":"11 4","pages":"Pages 232-238"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.eaef.2018.08.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133524718","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}

引用次数: 16

Cradle to farm gate life cycle assessment of oilseed crops production in Iran 伊朗油籽作物生产从摇篮到农场的生命周期评估

Engineering in Agriculture, Environment and Food Pub Date : 2018-10-01 Epub Date: 2018-04-17 DOI: 10.1016/j.eaef.2018.04.003

Majid Dekamin , Morteza Barmaki , Amin Kanooni , Seyed Reza Mosavi Meshkini

{"title":"Cradle to farm gate life cycle assessment of oilseed crops production in Iran","authors":"Majid Dekamin , Morteza Barmaki , Amin Kanooni , Seyed Reza Mosavi Meshkini","doi":"10.1016/j.eaef.2018.04.003","DOIUrl":"https://doi.org/10.1016/j.eaef.2018.04.003","url":null,"abstract":"<div>The goal of this research was to evaluate the environmental effects of the production of soybean (Glycine max), sunflower (Helianthus annuus L.), and canola (Brassica napus) oilseed crops in Ardabil in Iran. Lifecycle assessment was conducted to compare environmental burdens, water demand, and land use of these three crops. Four categories of environmental impacts were used to define in this method. The categories are eutrophication, acidification, global warming potential, and photochemical oxidation. Additional categories were water dependence and land use. These environmental effects followed the same pattern for the three oilseed crops. The results showed that sunflower demonstrated a higher environmental load in five of the six categories because of its lower seed yield and higher water and energy demands. The results indicate that production of 1 T of soybean and canola requires 370 and 471 m2 of land, respectively. Production of same quantity of sunflower required 426 m2 of land. Sunflower required 1.59 and 1.25 times more water than the canola and soybean respectively, to produce the same quantity of oilseed. It was found that the effects from the three crops comes generally from manufactured fertilizer, manure, diesel combustion, agricultural practices, and electricity for irrigation. It can be said that the indirect effects associated with these inputs are related to producing and processing, which had higher impacts than those of the direct effects.</div>","PeriodicalId":38965,"journal":{"name":"Engineering in Agriculture, Environment and Food","volume":"11 4","pages":"Pages 178-185"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.eaef.2018.04.003","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91701962","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}

引用次数: 8