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	Provedor de dados CIGR Journal (1.540) Autor Azadbakht, Mohsen (18) Mirzabe, Amir Hossein (10) Alimardani, Reza (9) Dawood, Mona Gergis (8) Kouchakzadeh, Ahmad (8) Owolarafe, Oseni Kehinde (8) Samer, Mohamed (8) Alwan, salih kadhim (7) Ghajarjazi, Ehsan (7) Guiné, Raquel P.F. (7) AVIARA, NDUBISI A. (6) Adekola, Kehinde Adedeji (6) BAKO, TANKO (6) Flores, Edgar Dulay (6) Hensel, Oliver (6) Omid, Mahmoud (6) Younesi Alamooti, Mohammad (6) da Luz, Carlos Alberto Silveira (6) da Luz, Maria Laura G. Silva (6) de Carvalho, Ricardo Oliano (6) Mais... Palavra-chave Agricultural Engineering (70) Moisture content (52) Physical properties (26) Energy (23) Efficiency (19) Agricultural engineering (18) Mechanical properties (17) Agriculture (16) Drying (16) Modeling (16) Biomass (13) Simulation (13) Temperature (13) Wheat (13) Yield (13) Modelling (12) Agricultural machinery (10) Drip irrigation (10) Greenhouse gases (10) Image processing (10) Mais... Tipo do documento Info:eu-repo/semantics/article (1.340) Ano 2024 (23) 2023 (85) 2022 (91) 2021 (119) 2020 (111) 2019 (138) 2018 (155) 2017 (82) 2016 (145) 2015 (206) 2014 (149) 2013 (84) 2012 (21) 2011 (26) 2010 (22) 2009 (17) 1969 (66) Mais... País China (1.540) Idioma Inglês (1.505)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1.540 Primeira ... 4 5 6 7 8 9 10 11 12 ... Última Relationship between thermal properties of canola pods (without seed) with moisture content, porosity and chemical composition of pods CIGR Journal Azadbakht, Mohsen; Ghajarjazi, Ehsan; Ghaderi-Far, Farshid. Thermal properties of canola pods including coefficients of thermal conductivity, thermal diffusivity and specific heat and chemical composition of rapeseed pods were measured at three levels of conventional canola varieties cultivated in the north of Iran (Hyola 50, Hyola 401 and Hyola 420) and in three times before harvest, while harvest and post-harvest. Then the relationship between the thermal properties of canola pods with chemicals, moisture and porosity were investigated. Conductivity coefficient was resulted from linear thermal method, the specific heat was obtained from mixing method and diffusion coefficients were calculated by the formula. The results showed that changes of variety and time of sampling were significant on thermal conductivity... Tipo: Info:eu-repo/semantics/article Palavras-chave: Thermal conductivity; Specific heat; Thermal diffusivity; Canola pod; Chemical composition; Porosity. Ano: 2016 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3613 Fuel and Physiochemical Properties of Mango (Mangifera indica) Seed Biodiesel and Its Blends with Diesel CIGR Journal Oyelaran, Olatunde Ajani. The aim of this work is to measure the fuel properties of mango seed biodiesel and its blends with diesel fuel. The oil was extracted by soxhlet extraction method the high Free Fatty Acid ( FFA) value of the oil produced necessitated, acid pretreatment prior to base transesterification with methanol using sodium hydroxide as catalyst which resulted into a considerable reduction of the FFA value from 3.3% to 0.9% and a biodiesel yield of 25.84%. The produced biodiesel was washed, dried and blended 10% (B10) 20% (B20) and 30% (B30) with diesel. They were evaluated following the ASTM and EN protocols. The result obtained shows that the kinematic viscosity at 40ranges between 2.86 and 4.32 cts, flash point ranges between 73 and 145 with the acid number ranging... Tipo: Info:eu-repo/semantics/article Palavras-chave: Energy; Bio-fuel; Agricultural waste to wealth Biodiesel Fatty Acids Ethyl Esters Fuel properties Transesterification Extraction Pretreatment Mango seed. Ano: 2018 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4445 Water resources potentials of Hadejia River Sub-catchment of Komadugu Yobe River Basin in Nigeria CIGR Journal A. Sobowale; Univesity of Agriculture, Abeokuta; J. K. Adewumi; University of Agriculture, Abeokuta; C. A. Okuofu; Ahmadu Bello University, Zaria; J. A. Otun; Ahmadu Bello Uniersity, Zaria. A. Sobowale1, J. K. Adewumi1, J. A. Otun2, D. B. Adie2(1. Department of Agricultural Engineering, University of Agriculture, Abeokuta. Nigeria;2. Department of Water Resources Engineering, Ahmadu Bello University, Zaria. Nigeria) Abstract: A water audit of the Hadejia river sub-catchment of Komadugu Yobe River basin of Nigeria (KYB) has been carried out.  The available water in this sub-catchment was compared with existing and potential water demands; results show that about 2,619 million cubic meters (MCM) of surface water is available annually upstream of Wudil (HS 1), 658 MCM is available between Wudil and Hadejia (HS 2), while 905 MCM is available between Hadejia and Gashua (HS 3).  Analysis of direct ground water recharge... Ano: 2010 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/1065 Evaluation of the Technical and Economical Effects of the Using of Machinery System for Processing of Straw for Energy Purposes CIGR Journal Nozdrovicky, Ladislav. In conditions of the agriculture in Slovak republic the straw, obtained as a by-product from cereals cropping systems, has a growing potential to be used as an important renewable energy source. This trend is fully consistent with the energy policy of the European Union, which aims to reduce the negative environmental impacts of fossil fuel use. The aim of the presented paper was to evaluate technical and economic effects of the using of the system for processing of straw including straw baling, transport and handling of the straw bales. During the years 2010-2012 the field experiments have been conducted in conditions of the large-scale farm (2770 ha of arable land). For the straw baling, transport and handling of the straw bales there is used a machinery... Tipo: Info:eu-repo/semantics/article Palavras-chave: Straw for energy purposes; Straw baling; Transport; Handling; Economical effects. Ano: 2015 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3098 Influence of feed moisture and hammer mill operating factors on bagasse particle size distributions CIGR Journal barati kakolaki, masoud; Kinamehr, Mohammad Hosein; Abooali, Behnam. Physical properties of ground bagasse could be important for processes such as densification. Bagasse chops into 20–25 cm slice at three moisture content 8, 12 and 16% (wb) were ground using a hammer mill (0.5 hp) with three screen sizes of 1, 2.5 and 4 mm at two hammer mill speeds 1400 and 2000 rpm. Physical properties of grinds such as geometric mean diameter of grind particles, particle size distribution were determined. The highest specific energy consumption was 750 KjKg-1 for the sample that has highest moisture content, using smallest screen size and at 2000 rpm hammer mill speed. And least specific energy consumption was 11 Kj­Kg-1for the sample that has least moisture content, using largest screen size (4 mm) and at 1400 rpm speed. Four... Tipo: Info:eu-repo/semantics/article Ano: 2020 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5067 Risks potential analysis of flakes machine in banana flakes production process using failure modes and effects analysis (FMEA) CIGR Journal haryanto, aidil. Banana flakes are foods that can be eaten every day and then benefit to the body. This product is made from bananas that contain lots of prebiotics and other nutrients needed. However, there are many problems encountered in the banana flakes production process. One problem is the machine. Therefore, a flakes machine was developed which is a machine for making banana flakes. During the production process, the machine flakes will surely have a risk of failure. In preventing the risk of failure that interferes with the production process, an analysis of potential failures is carried out. Because the flakes machine in the banana flakes production process is the machine of innovation so there is no failure analysis specifically for this machine. This paper aims... Tipo: Info:eu-repo/semantics/article Palavras-chave: Failure modes and effect analysis (FMEA); Flakes machine; Banana flakes; Risk priority number (RPN). Ano: 2023 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/7463 Comparative study between ANN and master curve technique for the thin layer drying kinetic study of paddy and modeling of its critical drying temperature by using ANN-PSO approach CIGR Journal Chakraborty, Sourav; Sarma, Mousumi; Bora, Jinku; Faisal, Shah; Hazarika, Manuj Kumar. Abstract: Thin layer drying kinetic analysis of paddy dried under low temperature conditions (20-40°C), was carried out by using six different types of models. Among which, Midilli model showed best fitted result with highest R2 and lowest RMSE and SSE values. It was observed that the drying rate constant k increased with the increase in drying temperature. For finding the effect of temperature, Midilli model was generalized by using two approaches namely globalization of drying rate constant and master curve technique. Master curve technique gave better fit with a R2 value of 0.998 than the global drying constant model. ANN modeling was also used to find out proper drying kinetics of paddy. Best architecture for the ANN modeling was 2-55-1, which showed... Tipo: Info:eu-repo/semantics/article Palavras-chave: Thin layer drying; Paddy; Low ambient temperature; Master curve technique; ANN; ANN-PSO.. Ano: 2016 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3645 Criteria for the Extraction of Fish Oil CIGR Journal BAKO, TANKO; VICTOR, UMOGBAI I; J, AWULU O. The effect of pre-treatment of mackery (Scomber scombrus) on oil recovery and quality was investigated. Fish oil was extracted using the screw expeller press after heat pre-treatment of the fish sample. The effect of cooking temperatures and cooking times was evaluated. It was observed that the oil yield has a positive relationship with cooking temperature. The oil yield increased with increasing cooking temperature at all the cooking times investigated and also increased with increasing cooking time from 5-15 minutes and then decreased for 20 minutes cooking time at all the cooking temperatures investigated. The results revealed that a highest yield of 22.8 % was obtained when the fish was treated at 90 0C cooking temperature for 15 minutes. The lowest... Tipo: Info:eu-repo/semantics/article Palavras-chave: Criteria; Fish Oil; Pre-treatment; Extraction; Oil yield. Ano: 2017 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4021 Investigation into some soil strength parameters using a locally developed soil shearing equipment CIGR Journal Soyoye, Babatunde Oluwamayokun; Ademosun, Olugboyega C.. A mechanical device was designed and fabricated for in situ measurement of soil strength parameters such as soil cohesion, soil adhesion, angle of soil internal friction, soil to metal friction angle, soil penetration resistance and soil bulk density.  The equipment was tested on the field at soil depth interval of 10 cm ranging from the soil surface to the depth of  30 cm following the standard procedures for the measurement of these soil strength parameters at soil moisture contents of 16.71% and 20.15%.  At soil moisture content of 16.71% dry basis, soil cohesion and soil adhesion were 5.313 and 6.968 kN/m2 and 3.745 and 4.234 kN/m2 at the soil surface and at soil depth of 30 cm respectively.  At soil moisture content of 20.15%, soil cohesion and soil... Tipo: Info:eu-repo/semantics/article Palavras-chave: Lecturer (Agricultural Engineering) soil strength parameters; Soil cohesion soil adhesion soil penetration resistance.. Ano: 2014 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2224 Effect of natural and synthetic fruit coatings on the postharvest quality of kinnow mandarins CIGR Journal Ali, Muhammad Azhar; Zulfiqar, Adnan; Arif, Atta Muhammad; Khan, Abdul-Rahim; Iqbal, Zafar; Khan, Muhammad Azam. Natural products are more preferred by consumers now-a-days over the synthetic ones. Therefore a natural fruit coating was developed from natural ingredients (shellac, rosin, gum arabic, water and ethanol from sugar industry) without ammonia or morpholine as an alternative to the synthetic coatings. So this research was devised to compare the effects of this newly developed natural fruit coating (with 9% total solids) with those of synthetic one (polyethylene based ammonia containing wax with 21% total solids) on the postharvest quality of kinnow (Citrus reticulata Blanco) mandarins. The kinnow mandarins were either coated with natural or synthetic fruit coatings or were left uncoated and stored at 5±2°C with 85-90% relative humidity for 63 days with five... Tipo: Info:eu-repo/semantics/article Palavras-chave: Natural fruit coating; Kinnow mandarins; Synthetic fruit coating; Morpholine; Ammonia; Ethanol. Ano: 2015 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2894 Development of a support mechanism for the use of motorized oil palm fruit bunch cutter CIGR Journal Aramide, Basiru Philip; Owolarafe, Oseni Kehinde; Adeyemi, Nabeel A. In this study a support mechanism (SP) for a palm fruit bunch harvester was designed, fabricated and tested on a plantation. This was with a view to adapting the cutter for harvesting tall oil palm trees in Nigeria. The design concept for the support mechanism was conceived as a mast pyramid which simulates an adjustable ladder pivoted on wheels comprising three segments, namely: the wheels which facilitate easy movement within the plantation; the lower segment, which comprises the stands and the upper segment which comprises the chamber (equipped with a platform) in which the operator (the climber) stands. The support mechanism was tested in comparison with the existing rope-and-knife (RK) method. The harvesting parameters used are time to climb up the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Agricultural Engineering; Farm Machinery and Processing oil palm harvesting motorized-harvester support-mechanism. Ano: 2016 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3493 Instrumented rig for cassava harvesting data acquisition CIGR Journal OGUNJIRIN, Olusola Adetola; Agbetoye, L.A.S.; Ademosun, O.C.. In the design of a viable and appropriate cassava tuber harvester, the lifting coefficient of cassava tuber was determined to be a function of lifting force, lifting time, speed of lifting, weight of the tuber and soil surrounding the tuber.  This paper described the design, construction and operation of an instrumented rig which allows the simulation of cassava tuber harvesting in the field.  The rig consisted of the gantry, chain block, chains, hook/fisher, variable speed electric motor, 5 kN load cell and DI-1000U data logger.  The developed rig was tested in a matured cassava field located at the experimental farm of the National Centre for Agricultural Mechanization, Ilorin, Nigeria in 2012.  The rig effectively uprooted cassava tuber in the field in... Tipo: Info:eu-repo/semantics/article Palavras-chave: Agricultural and Biological Engineering; Farm Power and Machinery instrumented rig; Cassava harvesting; Moisture at harvesting and speed of harvesting. Ano: 2016 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3720 Characterisation of Small Scale Feed Mills in a Developing Country CIGR Journal Adetifa, Babatunde Olusola; Okewole, Oyewole Titilope. There are many cottage scale animal farms in Nigeria that are sustained by the existence of small scale feed mills. The growth of these small scale feed mills is affected by some problems. A study to investigate some of the technical problems in small scale feed mills was conducted using Ibadan, Oyo State, Nigeria as a case study. Ten feed mills were randomly selected and investigated while thirty workers were assessed. The characteristics of the feed mills were investigated in terms of capacity, number of workers, mill operations and equipment used and the problems were investigated by studying four different areas which include; power source; unit operations/equipment; energy utilization pattern and workplace safety/hygiene. A questionnaire was designed... Tipo: Info:eu-repo/semantics/article Palavras-chave: Agricultural Engineering; Agricultural Processing; Feed milling; Management Capacity Energy use Grower’s mash Hygiene Layer’s mash Power source Unit operations. Ano: 2015 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3012 The Impact of the Tillage System on Some Field Energy Parameters, Soil Pulverization, and Grain Yield of Barley CIGR Journal nassir, aqeel; Mishall , Abbas; Musin, Sadiq; Hameed, Farkad. This study was aimed at assessing the effects of tillage systems and tillage speed on barley grain production, fuel consumption, specific energy, and soil pulverization. The study was conducted on the agricultural college's fields at the University of Basrah. The investigation included three conventional tillage systems, including disk plow + disk harrow + roller (T1), disk plow + two passes of a disk harrow (T2), and moldboard plow + cultivator + roller (T3), and two reduced tillage systems, including cultivator + roller (T4) and cultivator + disk harrow (T5). Three plowing speeds of 3.70 (S1), 5.68 (S2), and 7.04 (S3) km h-1 were used to prepare the soil for barley planting. The experiment was carried out using a random block design with five treatments... Tipo: Info:eu-repo/semantics/article Ano: 2023 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/8741 Effect of Some Dozer Design Parameters on Dozer Productivity CIGR Journal Emam, Mohamed Ali; Shaaban, Sayed M.; El Damerdash, Samir M.; Adel Shalaby, Ola. In this paper, a study for the effect of design parameters of dozers on their productivity is done by using the productivity-related data given in manuals of three different tracked dozer brands. The major design parameters that have been chosen in the study are the dozer weight, the dozer blade type and blade capacity and they approximately have the same power to weight ratio. Empirical equations for calculating the productivity for each brand have also been developed by using data-fit program. Finally, it has been concluded that the blade capacity stands as the most significant parameter as the dozer productivity increases by sixty percent in average whenever the blade capacity increases by twenty five percent.   Tipo: Info:eu-repo/semantics/article Palavras-chave: Earth moving equipment productivity; Track type dozer; Dozing distance; Dozer design parameters productivity. Ano: 2015 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3115 Effect of a simulated heat wave on stress parameters of broiler chicken housed at two different stocking densities CIGR Journal Arantxa Villagra; CITA-IVIA; Irene Olivas; CITA-IVIA; Nemesio Fernandez; UPV; Manuel Lainez; CITA-IVIA; Vasco Fitas; Universidade Evora; Antonio G Torres; UPV.  A. Villagrá1, I. Olivas1, N. Fernández2, M. Lainez1, V. Fitas3, A. G. Torres2(1. Centro de Tecnología Animal. Polígono La Esperanza nº 100, 12400, Segorbe, Castellón, Spain;2. Instituto de Cienciay Tecnología Animal, E.T.S.I. Agrónomos, Universidad Politécnica de Valencia, Camino de Vera s/n, 46022, Valencia, Spain;3. ICAAM, Escola de Ciências e Tecnologia, Universidade de Évora, Apartado 94, 7002-554, Évora, Portugal) Abstract: High temperatures and relative humidities are common in certain areas in summer (for example in the Mediterranean area), and can raise the indoor temperature of the farms.  The... Ano: 2010 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/1735 Cocoa Pod Ash as Bio-Based Catalyst for Biodiesel Production from Waste Chicken Fat CIGR Journal Odetoye, Temitope Elizabeth; Amusan, Greatness S.. The growing interest in using sustainable raw materials coupled with the need to reduce the over- dependence on non-renewable petroleum resources has made agricultural residues attractive raw material for biofuel production. The potential utilization of cocoa pod ash (CPA) as a bio-based catalyst for the production of biodiesel from waste chicken fat was investigated. Bio-based catalyst was obtained from cocoa pods by ashing method. The catalyst was subjected to scanning electron microscope (SEM) analysis. The experimental design was based on a five level, two factor central composite design. CPA was used in the preparation of biodiesel from waste chicken fat (WCF) using a two-step esterification-transesterification process. The highest biodiesel yield of... Tipo: Info:eu-repo/semantics/article Palavras-chave: Biomass and Bioenergy Cocoa pod ash agricultural residue; Biofuel; Bio-based catalyst; Potash; Nigeria. Ano: 2019 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5492 Prediction of Draft Force for Ard plows Using Dimensional Analysis in Silt Loam Soil CIGR Journal GEBRE, THOMAS; Yewtbarek, Teshome; Wako, Amana. The aim of this research is to determine the draft force of Ard plough in silt loam soil. Field and laboratories test were taken to measure the actual draft force and utilize it as input for draft prediction. PI-Buckingham's pi theorem using dimensional analysis used to develop a mathematical model. IBM SPSS statistics software was applied to validate and verify the developed model. The relationship between the measured and predicted values of the draft force evaluated R2 is 0.91. The predicted draft force value of skewness and kurtosis is in the range of accepted values. The performance of the predicted draft force was checked using RRMSE and CRM. Investigation findings demonstrate that the derived mathematical equation was successful and viable for... Tipo: Info:eu-repo/semantics/article Ano: 2024 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/8911 Characterization of brewery waste water and evaluation of its potential for biogas production CIGR Journal Murunga, Sylvia Injete; Mbuge, Duncan Onyango; Gitau, Ayub Njoroge; Mutwiwa, Urbanus Ndungwa; Wekesa, Ingrid Namae. The issue of global warming and climate change is strongly receiving public attention and has become a major environmental concern both nationally and internationally. Brewing industries are among the largest consumers of water and the largest source of organic effluent mostly from the brewing, cleaning, and cooling processes which must be treated to allowable levels to reduce environmental pollution. Close to 10 L water is used for every 1 L beer that is brewed, though the amount of water in the final beer is small. A study was undertaken to characterize and assess the variations in the quality of untreated brewery waste water. Samples from different process streams including brewing line, clean in place line and mixing line from two brewing industries in... Tipo: Info:eu-repo/semantics/article Palavras-chave: Brewery; Physicochemical characterization; Waste water; Pollution; Biodegradable; Anaerobic digestion. Ano: 2016 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3759 AN INTELLIGENT COMPUTER VISION SYSTEM FOR VEGETABLES AND FRUITS QUALITY INSPECTION USING SOFT COMPUTING TECHNIQUES CIGR Journal G, Narendra V. The quality of food products is very important for the human health. The large population and the increased requirements of food products makes it difficult to arrive the desired quality. The quality inspection and sorting tons of fruits and vegetables manually is a slow, costly, and an inaccurate process. In this research a vision-based quality inspection and sorting system is developed, to increase the quality of food products. The quality inspection and sorting process depends on capturing the image of the fruits/vegetables, analyzing captured image to discard defected products in order to identify the good or bad. Four different systems for different food products have been developed namely, Orange, Lemon, Sweet Lime, and Tomato. A dataset of 1200... Tipo: Info:eu-repo/semantics/article Palavras-chave: Agriculture and Food quality evaluation; Image processing; Compter Vision; Soft computing Techniques Quality Inspection of fruits and Vegetables; Back propagation neural network; Probabilistic neural network.. Ano: 2019 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5188 Registros recuperados: 1.540 Primeira ... 4 5 6 7 8 9 10 11 12 ... Última

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