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| Registros recuperados: 1.391 | |
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| javari, majid. |
| The main research aims to detecting the linear and nonlinear variability modeling in analyzing the variability patterns of rainfall series. For rainfall linear and nonlinear variability modeling, the ARIMA models and ARCH family models has been used for predicting the monthly and annual rainfall series extracted from IRIMO during 1975-2014 within 140 stations in Iran. Several ARIMA and ARCH (six models) models have been used and their validity has been confirmed by evaluating different accuracy indicators, using the hybrid model for the variability modeling. The analysis of ARIMA and GARCH selective models indicates existence of random and non-random in the rainfall time series. The combination model of (1, 0, 0) and GARCH (1, 1) is applied for the... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2017 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4193 |
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| goroshi, sheshakumar k. |
| The present experiment was carried out to assess influence and inter-relationships of soil properties in grasslands of three wildlife protected national parks in Central India. Aboveground biomass samples of grass and soil samples were collected during different seasons based on specified measurement protocol by the state forest department. Aboveground biomass of grass demonstrated a characteristic growth pattern throughout the year, increased and achieved maximum biomass during at the end of rainy season (September), while started decreasing and attained minimum biomass during pre-summer (March) season. Mean aboveground biomass in the study regions was varied from 2.03 (Bandhavgadh National Park) to 5.44 Mg ha-1 (Kanha National Park) with an average... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Grassland; Aboveground biomass; Soil moisture; Soil properties; Central India. |
| Ano: 2015 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2535 |
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| Hafezi, Negar; Sheikhdavoodi, Mohammad Javad; Sajadiye, Seyed Majid. |
| The effect of drying behaviour on the drying rate and quality characteristics of potato slices in a vacuum-infrared drying system was studied. In this research, the effect of the infrared radiation powers (100, 150, and 200 W) and vacuum levels (20, 80, 140 mmHg and atmosphere pressure) at different slice thickness (1, 2 and 3 mm) on drying rate and shrinkage percentage and rehydration capacity were investigated. It was concluded that infrared radiation power amount has a significant effect on processing time and drying rate. With increasing radiation power, drying time is reduced and consequently drying rate is increased. The drying rate curve of potato slices at initial drying time is in the ascending phase because of surface moisture evaporation and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Potato; Drying rate; Vacuum; Infrared radiation; Shrinkage; Rehydration. |
| Ano: 2016 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3583 |
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| Hoffmann, Thomas. |
| Several methods were developed to assess the flowability of bulk material. Jenike introduced flowability values toassess the flowability of bulk material like mineral raw material under given loads. A method developed by Carr usesseveral granulometric parameters to describe the flow properties without influence on the load. The aim of the own studywas to evaluate the recommendations of Jenike and Carr regarding to their application onto crushed grain. Thereforemeasurements with grainy and powdery grain products were carried out to determine flow properties regarding Jenike andCarr. Additionally unloading tests with a level model silo were performed to find out the influence of the outlet diameter.The evaluations of the flow properties according to Jenike... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Crushed grain; Flow properties; Jenike shear cell; Carr index. |
| Ano: 2015 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3448 |
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| Shiraj-Um-Monira, Syeeda. |
| This study was conducted to observe the effect of formalin application on the post-harvest quality and shelf life of mango. Mango samples were treated with different concentrations of formalin solutions (10, 100 and 1000 ppm) in two different modes (dipping and spraying) and stored for seven days at ambient condition. Physical characteristics, such as weight loss, color, texture and shrinkage and residual formalin content were observed at every alternate day during storage period. Formalin treatment (dipping and spraying) did not bring up any positive effect in increasing the shelf life of mango. Rather treated with higher concentration of formalin solution (10 ppm<100 ppm<1000 ppm) caused internal and external deterioration. Residual formalin... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Post harvest technology Formalin; Adulteration; Post-harvest quality; Shelf-life; Mango. |
| Ano: 2019 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5118 |
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| minteh, mustapha. |
| Abstract: Maintenance cost of agricultural machines accounts for about 10 to 15% of total production cost and this tends to increase as the machine gets older. To stabilized this already high cost, agricultural machinery maintenance engineers chose Preventive Maintenance (PM) strategy. However, the latter may not produce the desired results especially when machines are used under different operating context. In this paper, an assessment of the effects of PM strategy on reliability indicators (failure rate, mean time between failures (MTBF), mean time to repair (MTTR) and mechanical availability) of a rice combine harvester Mitsubishi TVR96 working under the operating context of Pacharr rice fields in The Gambia, is discussed. These reliability indicators... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Assessment; Impact; Preventive maintenance; Reliability indicators; Failure; Rice combine harvester.. |
| Ano: 2019 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4855 |
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| Maciel, Gisele; Wagner, Jorge Ricardo; Juan, Nestor Antonio; San Martino, Silvina; Bartosik, Ricardo. |
| Pairs of soybean seeds and their correspondent expeller samples were collected from ten extrusion-expelling processing plants in Argentina. Seeds were analyzed for proximal composition, bulk moisture content (MC) and individual seed MC. Expeller were analyzed for proximal composition, bulk MC, protein solubility in KOH, expeller urease activity and free fatty acid content. Results indicated that average soybean composition was 136 g/kg MC, 207 g/kg oil and 391g/kg crude protein (CP), while the oil extraction efficiency (OEE) of the process was of 60.7%. The expeller composition was 922 g/kg dry matter (DM), 81g/kg oil and 442 g/kg CP. In soybean seeds, coefficient of variation (CV) of MC was 17.2%, 3.0% for CP and 5.1% for oil, while in SBE CV for DM was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soybean processing; Extrusion-expelling; Oil extraction efficiency; Chemical composition; Individual seed moisture. |
| Ano: 2020 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5991 |
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| Miito, Gilbert John; Komakech, Allan John; Zziwa, Ahamada; Kiggundu, Nicholas; Kambugu, Robert. |
| Declining soil fertility is a challenge to sustainable agricultural production in sub-Saharan Africa with a case of Uganda. However, the large volumes of agricultural waste generated from pineapples can be converted into soil conditioners through vermicomposting. by the use of earthworms. Several types of agricultural waste have been studied extensively as vermicompost feedstock, but little work exists on pineapple waste. The objective of this study was to investigate the suitability of pineapple waste for vermicomposting. To achieve this, an assessment of the physicochemical properties of fresh, pre-composted pineapple waste, and the resultant vermicompost, and determination of the optimal feeding rate and stocking density were performed. The study... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pineapple waste; Vermicompost; Soil conditioner; Stocking density; Feeding rate. |
| Ano: 2021 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/6739 |
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| Francesco Barreca; Mediterranean University of Reggio Calabria, Faculty of Agricultural Sciences. |
| One of the most common causes of accidents in food industry buildings is slipping caused, in particular, by the spilling of liquid substances on the floor, which reduces the coefficient of friction between floor and sole. The aim of this study was to assess the performance of the most common types of flooring used in the food industry, where, owing to the characteristics of the manufacturing stages, the probability of liquid spilling is higher. Five different types of flooring, usually utilized in the food industry, were tested: two unglazed gres tiles and three resin floors. The tiles were different in surface shape: one was flat (gres A), the other was a tile with embossed surface (gres B). The surface of the resin used was made up of a three-component... |
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Palavras-chave: AGRI FOOD BUILDING DESIGN Floor; Slip; Worker safety; Food industry buildings; Dynamic Friction Coefficient. |
| Ano: 2015 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3209 |
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| Barreca, Francesco. |
| One of the most common causes of accidents in food industry buildings is slipping caused, in particular, by the spilling of liquid substances on the floor, which reduces the coefficient of friction between floor and sole. The aim of this study was to assess the performance of the most common types of flooring used in the food industry, where, owing to the characteristics of the manufacturing stages, the probability of liquid spilling is higher. Five different types of flooring, usually utilized in the food industry, were tested: two unglazed gres tiles and three resin floors. The tiles were different in surface shape: one was flat (gres A), the other was a tile with embossed surface (gres B). The surface of the resin used was made up of a three-component... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: AGRI FOOD BUILDING DESIGN Floor; Slip; Worker safety; Food industry buildings; Dynamic Friction Coefficient. |
| Ano: 2015 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3209 |
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| B. K. Fritz; USDA-ARS, College Station,; W. C. Hoffmann. |
| The deposition and drift of aerially applied crop protection materials is influenced by a numberof factors including equipment setup and operational parameters, spray material, and meteorological conditions. This work focuses on evaluating the meteorological influences on the transport and ultimate fate of aerially applied sprays. There was no single meteorological factor that dominated the downwind transport of the spray treatments replicated in this study. Generally, lower relative humidity decreased downwind deposition and the amount of spray unaccounted for due to evaporative effects. Increasing wind speeds decreased both in-swath deposition and downwind deposition, and increased the amount of mass unaccounted for.Increases in stability were only... |
| Ano: 1969 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/1241 |
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| F. Rovira-Más; S. Han; J. Wei; J. F Reid. |
| The growing demand for applications in Precision Agriculture has been proportional to the emergent interest in automatic guidance of agricultural machines. The difficult, and at the same time strenuous, task of driving a harvester during the prolonged working days of the harvesting season justifies the special attention paid to this technology. The development of Global Navigation Satellite Systems has meant an important push for autonomous navigation, especially in the case of off-road vehicles. However, experience has shown that automatic guidance inside the tight arrangement of crop rows is difficult to achieve unless local positioning sensors take part in the localization unit of auto-steered machines. This research develops a perception engine based... |
| Ano: 1969 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/944 |
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| H. W Griepentrog; M. Noerremark; J. Nielsen; J. S Ibarra. |
| Several developments and investigations have been done to automate the lateral control of hoes with the aim to achieve higher weeding efficiency and decreased labor costs. The aim of this project was to investigate the accuracy and limitations for a computer controlled hoeing operation based on a GPS system. A conventional hoe and an electro-hydraulic side shift frame was used and attached to a small automatic tractor. The main task of the controller systems was to minimize the lateral deviations between current GPS positions of the hoe related to a predefined route. The range of the cross track errors (standard deviations) altered between 0.009 m and 0.028 m for the hoe (ground measurements). The hoe system enables hoeing up to 83% of a field surface area... |
| Ano: 1969 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/936 |
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| Registros recuperados: 1.391 | |
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