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| Registros recuperados: 70 | |
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| Bonora, Filippo; Pastell, Matti; Benni, Stefano; Tassinari, Patrizia; Torreggiani, Daniele. |
| Automatic Milking Systems (AMS) measure and record specific data about milk production and cow behaviour, providing farmers with useful real-time information for each animal. At the same time, indoor climatic conditions in terms of temperature and humidity within a dairy livestock barn represent a well-known crucial issue in farm building design and management, since these parameters can remarkably influence cows behaviour, milk yield and animal welfare.The goal of the study is to develop and test an innovative procedure for the comprehensive analysis of AMS-generated multi-variable time-series, with a focus on the analysis of the relationship between milk production and indoor climatic conditions. The specific purpose of the study is to develop and test a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agricultural Engineering; Structures and Environment Precision Livestock Farming; THI (Temperature Humidity Index); Productivity; Dairy Cow. |
| Ano: 2018 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4679 |
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| AVIARA, NDUBISI A.; Iyilade, Idowu J.; Oyeniyi, Samuel K.; Aremu, Ademola K.. |
| A bush mango (Irvingia gabonensis) nut handling machine was developed to ease the tedium involved in the cracking operation and enhance the efficiency of separating the kernels from hulls. The machine consists of a hopper, cracking unit barrel, electric motor, blower, tool frame, hull outlet and kernel outlet. It operates on the principle of impact using centrifugal force from the baffles on a spinning disc. Results of performance tests carried out using nuts at four moisture levels in the range of 7.52-20.6% (d.b) showed that percent effective cracking decreased, while percentage kernel breakage increased with increase in feed rate, moisture content and resident time of nuts in the cracking chamber. Winnowing efficiency increased with feed rate and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agricultural Engineering; Post harvest Technology; Crop Processing Bush mango nut; Design and construction; Performance evaluation; Cracking; Efficiency. |
| Ano: 2019 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5093 |
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| Dogra, Ritu. |
| The effect of spade angle and spading frequency on various dependent variables, i.e. specific soil resistance encountered, energy consumed per unit volume of soil moved, weighted mean clod size, soil bulk density, soil cone index and cone index ratio were studied. The experiments were conducted in soil having 15.7% clay, 53.6% silt, and 30.7% sand. During experimentation, moisture content of soil was maintained between 13% and 14%. The spade angles used were A1 (0°), A2 (15°) and A3 (30°). Four levels of bite lengths viz. 4, 6, 8 and 10 cmat travel speed of 18.47 cms-1 were selected for the study. These corresponded to four levels of spading frequencies namely F1 (1.85 cycles s-1), F2 (2.31 cycles s-1), F3 (3.08 cycles s-1) and F4 (4.62 cycles s-1). ... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agricultural Engineering; Farm Machinery and power Engineering spading machine; Spade angle; Spading frequency; Degree of pulverization. |
| Ano: 2017 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3580 |
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| AVIARA, NDUBISI A.; Iyilade, Idowu J.; Oyeniyi, Samuel K.; Aremu, Ademola K.. |
| The use of inappropriate equipment to crack bush mango nut and obtain the kernel has adversely affected the efficiency of its processing operations. The manual method, which involves cracking the nut with stone or pestle and mortar, is not only slow and risky, but also wasteful. In order to develop appropriate processing equipment for the nut, knowledge of its mechanical properties is necessary. This study was undertaken to determine some strength properties of the nut at different moisture contents under lateral and longitudinal loading orientations, using Universal Testing Machine (UTM). In the moisture range of 7.52% - 20.6% (d.b) under both lateral and longitudinal loading orientations, results of tests showed that all the strength properties (bioyield... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agricultural Engineering; Post harvest Technology; Crop Processing Mechanical properties; Bush mango nut; Irvingia gabonensis; Moisture content; Loading orientation; Universal Testing Machine (UTM). |
| Ano: 2019 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5092 |
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| Akinoso, Rahman; Edun, Kolade. |
| Studies on drying have focused on developing mathematical models and kinetics of drying crops, but literature is sparse on energy and exergy analysis of cooked yam used for instant-pounded yam flour production. This work presents the effect of drying temperature and size on energy consumption during cooked yam dehydration, a major unit operation in instant-pounded yam production. Cooked yam with uniform surface area but different thickness (5 mm, 10 mm, 15 mm, 20 mm, 25 mm and 30 mm) were dried in a cabinet dryer at varying temperatures (60oC, 70oC and 80oC) and constant air velocity of 1.5 m s-1. During the drying process, parameters including inside chamber temperature, outside chamber temperature, ambient temperature, drying time and power output... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Food Engineering; Agricultural Engineering; Post-Harvest Drying Cooked yam Energy analysis Exergy efficiency Instant-pounded yam flour. |
| Ano: 2013 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2568 |
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| Bello, Segun Raphael. |
| The global drive toward intermediate technology and sustainable development motivated the development of sheet metal rolling machines for small-scale artisanal manufacturers. This paper presents the design, construction and evaluation of a sheet metal rolling machine for small-scale enterprises. The machine consists of three rollers; a rigid forming roller, a free floating roller and a drive roller arranged triangularly with two handles for shape-rolling. The rollers were made of galvanized metal pipe, 1,050 mm long, 76 mm diameter, each approximately, 3 mm thickness; a driving shaft 1,220 mm long, 16.6 mm diameter and 4 pieces of mild steel washers to provide support to shaft and also to limit the bending stress on the rollers. The entire system is... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agricultural Engineering; Wood products. |
| Ano: 2013 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/1759 |
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| Abegunrin, Toyin Peter; Adesina, Adetunji Emmanuel; Awe, Gabriel Oladele; Ojo, Olumiyiwa Idowu. |
| This study was conducted to evaluate the effect of different irrigation regimes on soil water dynamics and temporal associations with other water-atmospheric variables in a tomato field under different drip irrigation regimes in southwestern Nigeria. The experiment was 3 x 3 randomized complete block design (RCBD) with a split plot arrangement of treatments in three replicates. Irrigation frequencies of applying water every 7, 5 and 3 days designated as F1, F2, and F3, respectively serve as the main plot of the experiment while irrigation depth of 100, 75 and 50% of crop water requirement ( ) designated as D1, D2 and D3 are the sub-plots. During the growing season, soil water storage (SWS) was monitored in soil depths of 0-5, 5-10, 10-20 and 20-30 cm using... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agricultural Engineering; Irrigation Engineering; Soil Science; Soil Physics Agriculture Soil water status; Classical regression; State-time analysis; Irrigation frequency irrigation depth. |
| Ano: 2019 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4726 |
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| Simoyan, Kayode Joshua; Egbu, Chibuzor P.; Fasina, Oladiran O. |
| A study was undertaken to determine some energy properties of three non-timber forest tree residues: Bush Mango (Irvingia), Achi (Brachystegia eurycoma) and Para Rubber (Hevea brasiliensis) shells for fuel. The ultimate properties (Carbon, Hydrogen, Oxygen, Sulphur and Nitrogen contents) of the ground shells were determined. The proximate properties determined were volatile matter, ash and fixed Carbon contents, and calorific values. The shells for the three samples were reduced with a hammer mill to 1.00 mm, 2.00 mm and 4.75 mm particle sizes. The mean of the energy properties of the samples were compared using the New Duncan’s Multiple Range Test to determine if there were significant differences at (P ≤ 0.05). Results obtained showed that Irvingia... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agricultural Engineering; Bioenergy Biomass; Biomass fuel; Calorific value; Residues and energy properties. |
| Ano: 2018 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4075 |
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| Sornpoon, Wlaiwan; Jayasuriya, Hemantha P. W.. |
| The tillage and residue management during soil bed preparation need to be in appropriate manner for sustainable farming practice. The effects of tillage and residue management methods on corn cropping were studied on loamy soil in Bangrakum district, Phitsanulok Province, Thailand. The effects of five commonly used tillage methods: subsoiler tillage (ST), three methods of conventional tillage (CT1, CT2 and CT3), no-tillage (NT), as main factors and two corn residue management methods; burned (R1) and unburned (R2), as sub-factors were studied in a randomized strip plot configuration. Tillage treatment showed significant effect on physical and chemical soil properties, plant growth and development, grain yield, total aboveground biomass and most... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agricultural Engineering; Tillage optimization Tillage; No-tillage; Emergence; Compaction; Subsoiler; Biomass. |
| Ano: 2013 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2235 |
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| Registros recuperados: 70 | |
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