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	Provedor de dados CIGR Journal (70) Autor AVIARA, NDUBISI A. (3) Owolarafe, Oseni Kehinde (3) Adeyemi, Nabeel A (2) Aramide, Basiru Philip (2) Aremu, Ademola K. (2) Belfiore, Nicola Pio (2) Boxberger, Josef (2) Iyilade, Idowu J. (2) Jayasuriya, Hemantha P. W. (2) Mayrhofer, Hannes (2) Oyeniyi, Samuel K. (2) Quendler, Elisabeth (2) Saha, Chayan Kumer (2) Servadio, Pieranna (2) Abarikwu, Okezie Ibeji (1) Abdulkabir Mobolaji Ibrahim; University of Ilorin, Ilorin, Nigeria (1) Abdullahi, Hussein Itopa (1) Abegunrin, Toyin Peter (1) Achibase, Sebastian (1) Addo, Ahmad (1) Mais... Palavra-chave Agricultural Engineering (70) Moisture content (4) Post harvest Technology (3) Bioenergy (2) Efficiency (2) Incident (2) Irvingia gabonensis (2) Prevention (2) Tyres (2) Wood products (2) (1) Accident Prevention Agricultural machinery (1) Accident Prevention agricultural machinery (1) Agricultural Buildings and Bioenvironmental Engineering green building (1) Agricultural Processing (1) Agricultural Processing Aloe vera barbadensis gel extraction viscosity temperature (1) Agricultural Structures Greenhouse Technology modelling radiation exchange greenhouse surface sky (1) Agricultural buildings (1) Agricultural machinery (1) Agricultural mechanization Repair and maintenance costs (1) Mais... Tipo do documento Info:eu-repo/semantics/article (65) Ano 2021 (1) 2019 (11) 2018 (8) 2017 (3) 2016 (13) 2015 (10) 2014 (9) 2013 (13) 2012 (2) Mais... País China (70) Idioma Inglês (70)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 70 Primeira ... 1 2 3 4 ... Última Operational performance of crop residue cutting discs in the no-tillage system CIGR Journal Becker, Rafael Sobroza; Alonço, Airton dos Santos; Francetto, Tiago Rodrigo; Carpes, Dauto Pivetta; Zart, Bruno Christiano Correa Ruiz; Moreira, Antonio Robson. The objective of this study was to evaluate the operating performance of crop residue cutting discs with distinct cutting edges in the no-tillage system, in relation to the travel speed of the tractor/tool holder set. The experiment was carried out in an experimental area, the soil classified as Paleudalf. The experiment consisted in a factorial arrangement of 4x4, totaling 16 combinations of treatments and three replications, composed by the interaction of the factors: crop residue cutting discs (plain flat disc, wavy disc, rippled disc, and helical wavy disc coulter) and travel speed (1.11; 1.67; 2.22 and 2.78 m s-1). It was used a mobile tool holder structure for the coupling of the active organs, which was pulled by a farm tractor. For the collection... Tipo: Info:eu-repo/semantics/article Palavras-chave: Field trial; Agricultural machinery; Machine-soil ratio; Planter; Agricultural Engineering. Ano: 2019 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5116 APPLE IDENTIFICATION IN FIELD ENVIRONMENT WITH OVER THE ROW MACHINE VISION SYSTEM CIGR Journal Silwal, Abhisesh; Gongal, Aleana; Karkee, Manoj. Accurate detection and identification of fruits is critically important for the success of developing automated apple harvesting system. Research has been conducted to identify apples in orchard environment with reasonable accuracy when apples are clearly visible or partially occluded. However, only limited work has been carried out to identify fruit in clusters, which is critically important as fruit clusters are common in field conditions. This work focused on accurately identifying partially visible apples and apples in clusters using a machine vision system. An over the row platform with tunnel structure and artificial lighting was used to increase uniformity in imaging environment. Iterative Circular Hough Transform (CHT) was used to detect clearly... Tipo: Info:eu-repo/semantics/article Palavras-chave: Agricultural Engineering; Mechanization and Automation apple identification; Clustering; Circular Hough Transform; Blob analysis. Ano: 2014 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3006 Fuel consumption of some tractor models for ploughing operations in the sandy-loam soil of Nigeria at various speeds and ploughing depths CIGR Journal Adewoyin, Adewale Olaniyi; Ajav, Emmanuel Atoo. Tractors acquired in Oyo State-Nigeria are primarily utilized for ploughing operations which represents the most costly single item in the budget of an arable farmer.  Tractor fuel consumption constitutes a significant parameter that affects tractors performances for ploughing operations.  The effect of ploughing speed and depth on tractors fuel consumption was therefore examined in a bid to establish their optimum operating conditions.  The soil characteristics of the study site were determined using laboratory tests.  Ploughing operations, using ASABE standard D497.5, were carried out on 100×500 m research farmland using Massey Ferguson (MF 435, 100 hp), Fiat (F130D, 100 hp) and Steyr(CVT170, 100 hp) tractors that were purchased in 2009.  Field... Tipo: Info:eu-repo/semantics/article Palavras-chave: Agricultural Engineering; Farm Power and Machinery Tractor performance; Soil types; Ploughing depth; Ploughing speed; Fuel consumption. Ano: 2013 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2466 Prevention aspects for avoiding rollover incidents together for tractors, self-propelled harvesting and material handling machinery CIGR Journal Mayrhofer, Hannes; Quendler, Elisabeth; Boxberger, Josef. Abstract: Tractors, self-propelled harvesting and material handling machines are the most commonly used self-propelled machineries in Austrian agriculture that have similarities in main rollover incident causes.  The aim of this study was to present sustainable prevention measures against rollovers together for tractors, self-propelled harvesting and material handling machinery based on a new machine evaluation, manufacturer surveys and a literature research.  New machines were investigated concerning their compliance with legal regulations and concerning their current rollover prevention equipment.  By interviewing manufacturers of tractors, self-propelled harvesting machinery and material handling machinery, the challenges with implementing safety... Tipo: Info:eu-repo/semantics/article Palavras-chave: Agricultural Engineering; Accident Prevention Agricultural machinery; Surveys; Machine evaluation; Incident; Injuries; Prevention. Ano: 2014 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2820 Design Modification of Conventional Wheat Straw Chopper CIGR Journal Ghafoor, Abdul. Agriculture has straight and indirect contribution to boost the economy of Pakistan. Wheat and paddy are among the major rotational crops of Pakistan. The straw management in combine harvested in wheat fields is a major problem. In the past the residual wheat straw in convectional harvesting was burnt in the field which resulted losses of 80% of Nitrogen, 25% P, 21% K and 4-60% S. To overcome this problem, locally available wheat straw chopper is used for cutting and collecting the wheat straw left behind the combine harvesters. These locally developed wheat straw choppers are heavy in weight having lower machine efficiency. A wheat straw chopper has been modified using locally available materials making it light weight and more efficient. The performance... Tipo: Info:eu-repo/semantics/article Palavras-chave: Agricultural Engineering; Farm Machinery and Power Wheat variety wheat straw chopper straw yield field efficiency. Ano: 2015 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3031 Production of biodiesel from groundnut (Arachis hypogea, L.) oil CIGR Journal Oniya, Oluwatoyin Oluwole; Bamgboye, A. Isaac. Biodiesel is an environmental-friendly substitute for fossil fuel.  Research on the production of biodiesel from vegetable oils has concentrated on Jatropha, soybean, palm kernel, sunflower and rapeseed oils with scarce information on groundnut oils.  This study focussed on the production of biodiesel from groundnut oil.  Oil was mechanically extracted from groundnut seeds that were bought from Sabo market in Ogbomoso, Nigeria.  The extracted oil was trans-esterized with ethanol using potassium hydroxide as catalyst in a two-step trans-esterification process to yield ethyl esters and glycerol.  The fuel properties of groundnut oil and its ethyl ester were determined according to American Society for Testing Materials (ASTM) standard methods and compared... Tipo: Info:eu-repo/semantics/article Palavras-chave: Agricultural Engineering; Energy Groundnut oil Automotive Gas Oil Transesterification Ethyl esters Biodiesel Fuel Diesel engine Nigeria.. Ano: 2014 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2318 Comparative evaluation of the performance of motorized and pole and Knife oil palm fruit bunch harvester CIGR Journal Aramide, Basiru Philip; Owolarafe, Oseni Kehinde; Adeyemi, Nabeel A. In this study the performance of a motorized palm fruit bunch harvester (MBH) was evaluated in comparison with the bamboo-pole-and-knife harvester (BPK). The MBH was first tested on Nigerian plantations for the palm trees it could reach. The average time taken to harvest a bunch and the time taken per hectare of plantation were determined. The best orientation and the cutting angle for the harvester were also determined. The exact height which the harvester could reach was also determined on the plantations. The harvester was later used in comparison with (BPK) method on palms of moderate height and the average time of harvest per bunch, field capacity, as well as cost of operation was determined for the two methods. Time study (TS) of the two methods was... Tipo: Info:eu-repo/semantics/article Palavras-chave: Agricultural Engineering; Farm Machenery and Processing oil palm harvesting; Motorized-harvester; ; Pole-and-knife; Efficiency. Ano: 2015 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3347 Enhancing the efficiency of evaporative cooling pads for livestock barns and greenhouses by moisture adsorption CIGR Journal Samer, Mohamed. High levels of relative humidity negatively affect the efficiency of the evaporative cooling pads installed in livestock barns and greenhouses. Consequently, the productivity decreases causing economic losses. Therefore, this project aims at prototyping innovative dehumidifying/desiccant segments to be installed on the conventional cooling pads enabling them to provide suitable microclimate conditions, especially temperature and relative humidity, for animals and plants. The hypothesis is that desiccant segments adsorb air moisture before introducing the air into the pads; consequently, the treated air is then able to absorb more moisture from the cooling pads, i.e. the cooling pads evaporate more water in the treated air, where water evaporation requires... Tipo: Info:eu-repo/semantics/article Palavras-chave: Agricultural Engineering; Farm Buildings and Construction cooling pads; Livestock housing; Heat stress; Indoor air quality; Greenhouses. Ano: 2015 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3450 Effects of Different Cooling Systems on Heat Stress and Behaviour of Dairy Cows CIGR Journal D'Emilio, Alessandro; Cascone, Giovanni; Lanteri, Paolo; Porto, Simona M.C.. This paper shows the results of a research study aimed at investigating the effects of a sprinkler system coupled with forced ventilation on the heat stress and the behaviour of dairy cows bred in a free stall barn without paddock.To this aim, an experiment was carried out inside a free-stall dairy house equipped with two different cooling systems: a fogging system associated with forced ventilation in the resting area and a sprinkler system associated with forced ventilation in the feeding alley. The trial regarded two adjacent pens and the experimental protocol required that the treatment group was housed in one pen where the two cooling systems were always activated following an established timetable, whereas the control group was housed in the adjacent... Tipo: Info:eu-repo/semantics/article Palavras-chave: Agricultural Engineering. Ano: 2018 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4784 Current status and overview of farm mechanization in Pakistan – A review CIGR Journal Rehman, Tanzeel ur; Usman Khan, Muhammad; Tayyab, Muhammad; Waqar Akram, Muhammad; Faheem, Muhammad. Economic growth in Pakistani agricultural sector lags behind growth in industry and services, creating an ever widening rural-urban income fissure.  Agricultural mechanization plays a strategic role in improving agricultural production and productivity in developing countries. The average farm size in Pakistan is small (2.5 acres) and small and marginal land holdings (less than 2.0 ha) account for 85% of land holdings.  Mechanizing small and non-contiguous group of small farms is against ‘economies of scale’ for individual ownership of farm machinery. It was observed that there was a direct correlation between farm power availability and productivity during the past six decades. Being an agrarian country, mechanization can be called as back bone of... Tipo: Info:eu-repo/semantics/article Palavras-chave: Agricultural Engineering; Farm Machinery farm mechanization tractor population farm power agricultural machinery. Ano: 2016 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3650 Agricultural Engineering Profession; The Perspective of Employers of Labour in Ilorin, Nigeria CIGR Journal Oyebode, Oyetayo Olukorede; Ogunlela, Ayodele Olarewaju. An appraisal was carried out on the level of awareness of the Agricultural Engineering profession by employers of labour in Ilorin, Nigeria, to evaluate who they (employers of labour) think an Agricultural Engineer is, how relevant they think he is to their organizations and how well they have been able to make use of his (Agricultural Engineer’s) expertise in their respective organizations. This was done using structured questionnaires and personal communication. The questionnaires were distributed to the target groups and persons (these include Research Institutes, Production and Manufacturing Industries, Government Ministries, Agencies and Parastatals). The results showed that 79.8% of the respondents were of the opinion that Agricultural Engineers can... Tipo: Info:eu-repo/semantics/article Palavras-chave: Agricultural Engineering; Profession; Employers of Labour; Ilorin. Ano: 2021 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5362 ICT monitoring and mathematical modelling of dairy cows performances in hot climate conditions: a study case in Po valley (Italy) CIGR Journal 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 Design steps of narrow tillage tools for draught reduction and increased soil disruption – a review CIGR Journal Odey, Simon Ogbeche. Design steps of narrow tillage tools for draught reduction and increased soil disruption was reviewed. Narrow tillage tools are the main components of conservation tillage and soil compaction alleviation equipment. Literature regarding dynamic behaviour and step-by-step design of narrow tillage tools is scarce. A better understanding of soil dynamic behaviour and designing steps will help in the design of new tool shapes which will reduce tool draught, energy demand and increased soil disruption over a wide speed range. At the same time, narrow tools disturb less soil, ideally only the minimum necessary to establish a crop. Narrow tillage tools such as subsoilers have gain much ground in their application for alleviating soil compaction; and are attracting... Tipo: Info:eu-repo/semantics/article Palavras-chave: Agricultural Engineering; Farm Power and Machinery; Processing and Storage Engineering design; Draughts; Soil disruption; Subsoiler shanks. Ano: 2016 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3511 Effect of Moisture Content and Loading Orientation on Mechanical Properties of Bush Mango (Irvingia gabonensis) Nut CIGR Journal 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 Dynamic performance and ride comfort evaluation of the seat suspension system in a small agricultural tractor to attenuate low-frequency vibration transmission CIGR Journal Jayasuriya, Hemantha P. W.; Sangpradit, Kiattisak. To obtain safety and ride-comfort conditions for tractor operators, the tractor seat suspension system was analyzed and modified to attenuate the vibration transmission.  Experiments were conducted on a standard test track to investigate the effect of seat vibration on operators using a small 4-wheel tractor, and to develop a suitable seat suspension system following ISO guidelines.  Dynamic and ergonomic effects of vibration on operator using conventional seat and the new design were compared ensuing standard test procedures.  The supportive observations on ergonomic aspects were also made, viz. the operator heart rate, postural comfort survey, and Cornell ergonomic seating evaluation.  The vibration of existing seat in vertical direction had the highest... Tipo: Info:eu-repo/semantics/article Palavras-chave: Agricultural Engineering; Ergonomics; Operator safety Ride-comfort; Ergonomics; Suspension; Postural-comfort; Attenuation. Ano: 2014 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2238 Development and evaluation of metal rolling machine for small-scale manufacturers CIGR Journal Segun Raphael Bello; Department of Agricultural & Bio-Environmental Engineering Technology Federal College of Agriculture, Ishiagu, 480001, Nigeria.  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... Palavras-chave: Agricultural Engineering; Wood products. Ano: 2013 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/1759 Influence of tyres characteristics and travelling speed on ride vibrations of a modern medium powered tractor Part I: Analysis of the driving seat vibration CIGR Journal Servadio, Pieranna; Belfiore, Nicola Pio. In the present investigation a contribution is offered in order to improve the knowledge of the influence of both speed and tyre type on a medium power tractor vibrations.  The vibrations transmitted from the ground to the driver’s seat of a ballasted wheeled tractor of medium power, equipped with a front suspension axle and a suspended cab, have been measured and analyzed.  Two different tyres, namely, types A and B, at two different forward speeds, 11.1 and 13.9 m s-1, have been experimentally tested, during the simulation of the front agricultural implements transportation on a rectilinear plane tract of a conglomerate bituminous closed track.  This work has been done by applying standards recommended by ISO 2631/1, 1997.  Results were obtained on the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Agricultural Engineering; Ergonomics tractors; High speed; Whole body vibrations; Tyres. Ano: 2013 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2543 Effect of moisture content on physical properties of bush mango (Irvingia gabonensis) nut CIGR Journal AVIARA, NDUBISI A.; iyilade, Idowu A.; Aremu, Ademola K; Oyeniyi, Samuel K. The effect of moisture content on some physical properties of Bush Mango (Irvingia gabonensis) nut was studied at four moisture levels in the range of 7.52% - 20.6% (d.b). Results showed that the length, width and thickness of nut increased from 37.84 to 50.16 mm, 30.23 to 42.62 mm and 19.25 to 28.15 mm respectively, as moisture content increased in the above range. Nut sphericity decreased from 76.2% to 69.5% as moisture content increased. One thousand seed weight, bulk density, true density and angle of repose increased from 6.634 to 9.158 kg, 756.7 to 1095 kgm-3, 984.4 to 1095kgm-3 and 25.3 to 38.9o respectively, in the above moisture range. Static coefficient of friction on different surfaces increased in the order of fiber glass (0.378 to 0.394),... Tipo: Info:eu-repo/semantics/article Palavras-chave: Agricultural Engineering; Post harvest Technology; Crop Processing Moisture content; Dika nut; Irvingia gabonensis; Size; Shape; Gravimetric; Frictional properties. Ano: 2019 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5089 Performance Evaluation of a Hand pump with Provision of a Sealed Secondary Water Sump CIGR Journal Sarkar, Amaresh; Jha, Madan Kumar. Nowadays, a large number of water lifting devices and pumps are available for lifting water or other liquids from lower elevation to higher elevation. However, none of these hand pumps use a secondary water sump or any other such kind of device which increases efficiency of commonly used hand pumps. Also, measurement of operating forces for the performance evaluation of hand pumps is often missing. In this study, a commonly used hand pump was fitted with a 54-liter capacity sealed secondary water sump. The secondary water sump is again linked with the shallow well water or aquifer water. It was estimated that the provision of secondary water sump fitted with a hand pump results in significant reduction in the input power. The performance on a hand pump... Tipo: Info:eu-repo/semantics/article Palavras-chave: Agricultural Engineering; Groundwater lifting system Hand pump; Secondary water sump; Pump efficiency. Ano: 2015 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3049 Measuring Picking Force of Sunflower Seeds and Prediction of Reasonable Range of Air-Jet Parameters to Remove Sunflower Seeds from the Head CIGR Journal Mirzabe, Amir Hossein; Chegini, Gholam Reza. To design a new machine which removes the seeds of sunflowers based on air-jet impingement, picking force of five varieties of sunflower seeds was measured. Effects of the loading rate, sunflower head’s diameter, the location of the seeds on the head and the number of the days after harvesting on picking force of seeds were studied. The tests were conducted 1, 2, 3 and 4 days after harvesting. Also theoretical air-jet impingement forces for four levels of nozzle diameter, four levels of jet temperature and eight levels of pressure of reservoir to which the jet were calculated. With the increase of the sunflower heads’ diameter and the loading rate from 50 to 150 g min-1, the values of the picking force increased. With the increase of the distance between... Tipo: Info:eu-repo/semantics/article Palavras-chave: Sunflower Thresher; Seed Picking Force; Impingement Jet Method; Jet Force; Agricultural Engineering; Helianthus Annuus L.. Ano: 2015 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3381 Registros recuperados: 70 Primeira ... 1 2 3 4 ... Última

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