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| Registros recuperados: 473 | |
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| Guedes, Roberta Sales; UNIVERSIDADE FEDERAL DA PARAIBA; Alves, Edna Ursulino; UNIVERSIDADE FEDERAL DA PARAIBA; Gonçalves, Edilma Pereira; UFRPE; França, Pablo Radamés Cabral de; UNIVERSIDADE FEDERAL DA PARAIBA; Moura, Macio Faria de; UNIVERSIDADE FEDERAL DA PARAIBA; Santos, Sueli da Silva; UNIVERSIDADE FEDERAL DA PARAIBA. |
| Dalbergia nigra (Vell.) Fr. All., conhecida popularmente como jacarandá-da-bahia, é uma espécie bastante conhecida pela exploração da sua madeira. Foi realizado um experimento no Laboratório de Análises de Sementes (CCA/UFPB) Areia, Estado da Paraíba, com o objetivo de determinar metodologia adequada para a condução de testes de germinação e vigor com sementes de D. nigra. O experimento foi conduzido em delineamento inteiramente ao acaso, em esquema fatorial 2 x 7, sendo duas temperaturas (25 e 20-30°C) e sete substratos (entre areia, entre vermiculita, bioplant®, plantmax®, entre e sobre papel mata-borrão e papel toalha), com quatro repetições de 25 sementes cada. As características avaliadas foram: germinação (%), primeira contagem de... |
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Palavras-chave: 2.03.03.00-9 sementes florestais; Jacarandá-da-bahia; Vigor; Substrato; Temperatura 2.03.03.03-3 forest seeds; Jacarandá-da-bahia; Vigor; Substrate; Temperature. |
| Ano: 2011 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/5834 |
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| Azadbakht, Mohsen; Ziaratban, Armin; Vahedi Torshizi, Mohammad; Aghili, Hajar. |
| In this research, energy and exergy loss were analyzed in the laboratory for the drying of eggplant using a fluidized bed dryer. The drying experiment was conducted at inlet temperatures of 40, 50, and 60 and air velocities of 3, 5, and 7 m/s using samples with diameters of 5, 10, and 13 mm and a height of 1 cm. The effects of temperature, velocity of drying air, and sample size on energy consumption and exergy losses were investigated. The results showed that the minimum energy consumption and exergy losses occurred at a diameter of 13 mm, velocity of 3 m/s, and temperature of 40. Meanwhile, the maximum energy consumption and exergy losses occurred at diameter of 5 mm, velocity of 7 m/s and temperature of 60;. Generally, the results demonstrated that... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Energy utilization; Exergy losses; Eggplant; Fluidized bed dryer; Temperature; Air velocity. |
| Ano: 2017 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4116 |
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| H.U., Nwannewuihe; M. C., Onwukwe; J.C., Edeh; N. I., Nwagugu; J.N., Nwakaire. |
| Most agricultural materials undergo various forms of preservation in order to enhance shelf life. Sheanut is usually preserved by heating the kernels over fire in a pot for a time period. This affects its properties especially during heat processing. It is expected that this work will provide information that would help optimize such processing. Preserved sheanut kernel samples sourced locally were prepared by manually cleaning, sorting, grinding and sieving to obtain desired particle sizes. The specific heat of the samples were evaluated as a function of particle size (2.36 mm), (1.18 mm and 1.00 mm), moisture content (initial moisture content, 10%, 20%, 30% and 40% db) and temperature (50oC, 60oC, 70oC, 80oC, and 90oC). The specific heat of each particle... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Power system Engineering specific heat; Particle size; Moisture content; Temperature; Sheanut. |
| Ano: 2016 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3800 |
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| OLUSHOLA, SUNMONU MUSLIU; MAYOKUN, ODEWOLE MICHAEL; OLAMIDE, OYEDUN ALIU; OPEYEMI, OLA FUNMILAYO; MUSLIM, HAMID TAYE. |
| As milk provides a substantial amount of vitamins and minerals in relation to its energy content, it is considered a nutrient dense food The difference and changes in the nutritional compositions (Protein, fat, carbohydrate, moisture content, ash content, fibre content, magnesium and calcium) of White Fulani, Sokoto Gudali and mixture of the two breeds were investigated before and after autoclaving of milk samples in glass, aluminium and stainless steel containers at various temperatures of 1100C,1210Cand 1300C with autoclaving time of 10minutes, 20 minutes and 30 minutes. The heat treatment was done using MA-DONAX YX-280A Vertical Column Autoclave of 18Litre capacity of pressure of 0.14MPa – 0.165MPa. The results were evaluated using ANOVA at p 0.05.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Breeds; Milk; Nutritional; Temperature; Time. |
| Ano: 2021 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/6147 |
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| Ikegwu, Onyekachi John. |
| The thermal conductivity of agricultural seeds has been used as engineering parameter in the design of process and machines for drying, storing, aeration and refrigeration. The thermal conductivity of white and red pigeon pea seeds with changes in moisture content and temperature was investigated using the transient heat transfer method. The thermal conductivity of white and red pigeon pea seeds increased from 0.2387 to 0.3497 Wm-1k-1 , and 0.2375 to 0.3425 Wm-1k-1 respectively, as the moisture content increased from 5 to 35% w.b. Thermal conductivity of white and red pigeon pea seeds increased significantly (p<0.05) from 0.2643 to 0.3543 Wm-1k-1 , and from 0.2711 to 0.3311 Wm-1k-1 respectively, as temperature increased from 10 to 70 ℃. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Thermal conductivity; Pigeon pea seeds; Moisture content; Temperature; Activation energy. |
| Ano: 2021 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/6065 |
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| Kaushal, Pragati; Sharma, Harish Kumar. |
| Drying characteristics of noodles prepared from 50% taro and remaining equal proportions of rice and pigeonpea flours were investigated in a convective type dryer for a temperature range of 50°C to 80°C at a constant air velocity of 1.5 m s-1. Results indicated that drying took place in falling rate period. The sample dried at 50°C was found better in color as compared to samples at 60°C, 70°C and 80°C. The rehydration weight of noodles decreased with the increase in drying temperature. Moisture transfer from noodles was described by applying Fick’s diffusion model and the effective moisture diffusivity was calculated. Effective moisture diffusivity increased with increase in temperature. An Arrhenius relation with activation energy of 38.53 kJ... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Noodle; Taro; Dehydration kinetics; Temperature; Moisture. |
| Ano: 2013 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2132 |
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| Roy, Dipika; Saha, Chayan Kumer; Alam, Md. Monjurul; Alam, Md. Ashraful; Sarker, Tumpa Rani. |
| Proper and timely drying is needed for producing quality paddy seed. Open sun drying is often produced seed with foreign materials. Solar dryer produced by science for society (S4S), India might be suitable for country like Bangladesh. Therefore, an attempt was taken to evaluate S4S seed dryer at the Workshop, Department of Farm Power and Machinery, Bangladesh Agricultural University, Mymensingh. In this experiment, the spatial and temporal distribution of temperature and moisture in S4S solar grain dryer was investigated and the seed quality was also evaluated. The dryer performance was evaluated with six trials in Boro season from May 10 to June 6, 2017 and with three trials in Aman season from November 7 to 11, 2017. Paddy seed samples were also dried... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Solar drying; Temperature; Moisture content; Drying loss; Germination. |
| Ano: 2020 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5957 |
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| Garbaba, Chemeda Abedeta. |
| Mycotoxin-producing fungal growth commonly reported from traditional maize storage system in southwestern Ethiopia. Un-safe moisture content at loading and non-climatically controlled nature of gombisa results in mycoflora growth and development on maize in storage system. Therefore, this paper was aimed to develop a photovoltaic driven ventilation system fitted to modified gomibsa for natural air in-bin drying of on-cobs-maize and increase the shelf life of the product. Modified gombisa was constructed from locally available materials for the current experiment. An appropriate fan type and size, humidistat set at >70% and two 20 Wp photovoltaic panels were used for ventilation purpose, fan control and power the fan, respectively. In total 1.76 m3 of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Modified gombisa; Maize in cobs; Temperature; Relative humidity; Ventilation system.. |
| Ano: 2018 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4850 |
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| COELHO-SOUZA,SERGIO A.; ARAÚJO,FÁBIO V.; CURY,JULIANO C.; JESUS,HUGO E.; PEREIRA,GILBERTO C.; GUIMARÃES,JEAN R.D.; PEIXOTO,RAQUEL S.; DÁVILA,ALBERTO M.R.; ROSADO,ALEXANDRE S.. |
| ABSTRACTUpwelling systems contain a high diversity of pelagic microorganisms and their composition and activity are defined by factors like temperature and nutrient concentration. Denaturing gradient gel electrophoresis (DGGE) technique was used to verify the spatial and temporal genetic variability of Bacteria and Archaea in two stations of the Arraial do Cabo coastal region, one under upwelling pressure and another under anthropogenic pressure. In addition, biotic and abiotic variables were measured in surface and deep waters from three other stations between these stations. Six samplings were done during a year and adequately represented the degrees of upwelling and anthropogenic pressures to the system. Principal Component Analysis (PCA) showed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Microbial diversity; Leucine incorporation; Flow cytometry; Temperature; Nutrients availability; Brazilian Upwelling System. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000401737 |
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| Hohmann,Celso L.; Luck,Robert F.. |
| The development times and the thermal requirements of Wolbachia-infected and antibiotically cured Trichogramma kaykai Pinto and Stouthamer (Hymenoptera: Trichogrammatidae), using Trichoplusia ni Hübner (Lepidoptera: Noctuidae) eggs, were assessed at four constant temperatures (15, 20, 25, and 30°C), 70 ± 5% RH, photophase 14 h. The knowledge of temperature effects are very important in helping understand the dynamics of desert organisms like T. kaykai that face extreme temperatures during the season. Cured wasps developed faster at higher temperatures (20, 25, and 30°C) than infected wasps. However, infected wasps developed faster at the lowest temperature (15°C) than cured wasps. Developmental times of cured and infected wasps increased from 7.0 and 7.1... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Insecta; Parasitoids; Temperature; Parthenogenetic induced bacteria. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0301-80592000000300012 |
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| Registros recuperados: 473 | |
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