Dowlati M.,University of Jiroft |
Aghbashlo M.,University of Tehran |
Mojarab Soufiyan M.,University of Tehran
Energy | Year: 2017
In this study, a comprehensive exergetic performance analysis of an ice-cream manufacturing plant was conducted in order to pinpoint the locations of thermodynamic inefficiencies. Exergetic performance parameters of each subunit of the plant were determined and illustrated individually through writing and solving energy and exergy balance equations on the basis of real operational data. The required data were acquired from a local ice-cream factory located in Tehran, Iran. The plant included three main subsystems including water steam generator, refrigeration system, and ice-cream production line. An attempt was also made to quantify the specific exergy destruction of the ice-cream manufacturing process. The functional exergetic efficiency of the water steam generator, refrigeration system, and ice-cream production line was determined at 17.45%, 25.52%, and 5.71%, respectively. The overall functional exergetic efficiency of the process was found to be 2.15%, while the specific exergy destruction was calculated as 719.80 kJ/kg. In general, exergy analysis and its derivatives could provide invaluable information over the conventional energy analysis, suggesting potential locations for the plant performance improvement. © 2017 Elsevier Ltd
Aghaabbasi N.,University of Jiroft
Research Journal of Applied Sciences | Year: 2016
The goal of this study is reviewing the effects of oil shocks on economic growth in eight selected countries of Middle East. Firstly by using of hoodric-prescott Filter method the oil price was calculated and then the effect of oil price shocks on the variants was estimated by application of VAR. On the basis of the results all these countries except Saudi Arabia has negative reaction to the shocks imposed by oil price. The most reaction by the shocks were due to the variants that it made the most impress on Kuwait and the least effect was related with Saudi Arabia, also the most explanative of oil shocks in growth differential were about Iran, Qatar and Iraq while the least rate returns to Lebanon and Bahrain. The most share belongs to Bahrain by 100% at the beginning of the period that this volume decreases during the period and after that Iran by 91.58 locates in the second rank. © Medwell Journals, 2016.
Rashidi A.,University of Kurdistan |
Mokhtari M.S.,University of Jiroft
Small Ruminant Research | Year: 2015
The aims of this study were the analysis of pedigree information and evaluation of inbreeding effects on birth weight (BW), average daily gain from birth to weaning (ADG), weaning weight (WW) and yearling greasy fleece weight (GFW) in Markhoz kids. Mean of inbreeding coefficients in whole and inbred populations were estimated to be 2.73% and 5.25%, respectively. Pedigree information over a 23-year period (from 1990 to 2013) was used. Kids born from 2010 to 2013 were considered as reference population. Taking the reference population into account an average inbreeding coefficient of 4.20% was obtained. Average coancestry in the reference population was estimated as 1.93%. Mean of generation interval, computed from four pathways, was 3.55 years, with a longer interval from dam-progeny pathways relative to sire-progeny ones. Average equivalent complete generation, as a measure of pedigree completeness, in the reference population was 5.84. Realized effective population size was estimated from the individual rate in coancestry and from the individual increase in inbreeding (δFi) as 84 and 69, respectively. The effective numbers of founders, ancestors, founder genomes (founder genome equivalents) and non-founder genomes for reference population were estimated at 49, 37, 26 and 56, respectively. Approximately, 75% of total genetic variation was explained by the 28 most influential ancestors, with a maximum individual contribution of 6.97%. Inbreeding depressions were estimated for studied traits by fitting δFi of kids as linear covariates under univariate animal models. Significant individual inbreeding depression was found only for GFW (P<0.01) as -3.1g per 1% increase of δFi and not found for other traits (P>0.05). The effects of inbreeding on estimation of variance components and ranking of animals based on predicted breeding values were not significant (P>0.05). The obtained results revealed the evidences on loss of genetic diversity and bottlenecks in the population, mainly because of unbalanced contribution of breeding animals to gene pool of population. © 2015 Elsevier B.V.
Beitollahi H.,Research Institute of Environmental science |
Khabazzadeh H.,Shahid Bahonar University of Kerman |
Karimi-Maleh H.,Islamic Azad University |
Akbari A.,University of Jiroft
Chinese Chemical Letters | Year: 2012
A new electrochemical sensor for determination of isoproterenol (IP) is described. The sensor is based on carbon paste electrode (CPE) modified with 5-amino-2′,4′-dimethoxybiphenyl-2-ol (5ADMB) and takes the advantages of carbon nanotubes (CNTs). Under the optimum pH of 7.0, the oxidation of IP occurs at a potential about 210 mV less positive than that of the unmodified CPE. The oxidation currents increased linearly with two concentration intervals of IP, one is 0.09 to 20.0 μmol/L and, the other is 20.0 to 400.0 μmol/L. The detection limit (3σ) obtained by square wave voltammetry (SWV) was 39.0 nmol/L. The practical application of the modified electrode was demonstrated by determining IP in IP ampoule, urine and human blood serum samples. © 2012 Hadi Beitollahi.
Kor N.M.,Islamic Azad University at Baft |
Ziaei N.,University of Jiroft
Asian Journal of Animal and Veterinary Advances | Year: 2012
Reproductive management has an important role in animal production; therefore, the objective of this study was to determine the effect of different dosages of equine chronic gonadotropin (eCG) on reproductive performance of mature Raini goats during the breeding season. One hundred Raieni goats (42±2.5 kg) were randomly allocated to five groups to receive different dosages of eCG; (0 IU as control group; and other treated groups received 350, 450, 550 and 650 IU of eCG respectively). The interval to onset of estrus was detected by using five aproned bucks. Oestrus was induced by prostaglandin and occurred 24 to 48 h after the second injection. The results showed the estrus incidence rates were not significantly different between groups (p>0.05). The pregnancy rates were 90, 90, 95, 100 and 85% in treatments and control group, respectively, with the pregnancy rate in 550 and 650 IU groups being significantly higher than the other groups (p<0.05). Twinning rates were higher in treated goats (55, 58 and 65%) than in controls (36%, p<0.05). The results of the present study show that eCG treatments increase the twinning rate in Iranian Raieni goats. © 2012 Academic Journals Inc.
Seyedi N.,University of Jiroft
Transition Metal Chemistry | Year: 2013
In this investigation, glycerol and [Fe(III)(salen)]Cl as a green catalyst system were used in multicomponent reactions for the synthesis of bis(indolyl)methanes, 3,4-dihydropyrimidinones, and 1,4-dihydropyridines, respectively. Excellent product yields and short reaction times were achieved. © 2012 Springer Science+Business Media Dordrecht.
Ziaei N.,University of Jiroft
Journal of Applied Animal Research | Year: 2015
The aim of this study was to investigate the effect of selenium (Se) and vitamin (vit) E supplementation on reproductive indices and biochemical metabolites in Raieni goats. Ninety adult Raieni goats, weighing 43 ± 2.5 kg and with a body condition score of 3.5 ± 0.1, were randomly allocated into nine groups which entered into an experiment with 3 x 3 factorial design. The experimental diets consist of three levels of se (0.0, 0.3 and 0.5 mg/kg of feed) and three levels of vit E (0.0, 20 and 50 mg/kg of feed). At the end of the experiment, blood samples were collected from the jugular vein of all goats into 10-ml vacuum tubes (venoject). Serum was recovered by centrifugation (10 m at 3000 rpm) and stored at -20°C until assayed for the concentration of biochemical metabolites (glucose, cholesterol, triglycerides, low-density lipoprotein (LDL), high-density lipoprotein (HDL), total proteins, albumin and T3 and T4). The results of this experiment revealed that supplementation of diets with Se or vit E had no significant effect on biochemical metabolites or reproductive traits. However, the interactive effect of Se and vit E on reproductive indices was significant (P < 0.05), with goats fed diets containing 0.5 mg/kg Se and 20 mg/kg vit E, giving birth to heavier kids compared to those which received the other dietary treatments. © 2014 Taylor & Francis.
Amini M.,University of Jiroft
International Journal of Engineering, Transactions A: Basics | Year: 2015
The objective of this paper is to remove phosphorus removal from a dairy wastewater in a batch system with simultaneous aerobic and anaerobic process. The system consists of a granular sequencing batch reactor (SBR) working under alternating aerobic/anaerobic conditions. In order to analyze the process, four significant variables viz. MLSS, COD/N ratio, aeration time and cycling time and four dependent parameters as the process responses were studied. The experiments were designed using a central composite design (CCD) and the data was processed under response surface methodology (RSM). The optimal removal percentage of PO43- obtained 98.34% at SVI, MLSS, and MLVSS of 44.03 ml/g, 5645.97 mg/l and 4435.99 mg/l, respectively. High-magnification SEM showed the morphological diversity of the microorganisms that inhabited the SCNP (Simultaneous carbon, nitrogen and phosphorous removal) in batch conditions, which included spherical, rod and long filamentous-shaped bacteria microorganisms. This study showed a successful high phosphorus removal from dairy wastewater with microbial granules cultivated under the alternating aerobic-anaerobic conditions in batch regime. © 2015, Materials and Energy Research Center. All rights reserved.
Akbari A.,University of Jiroft
Heterocyclic Communications | Year: 2013
Silica-supported boron trifluoride (BF3•SiO2) is an efficient, readily available, and reusable catalyst for the synthesis of 2-amino-5-oxo-4-aryl-4H,5H-pyrano[3,2-c]chromene-3-carbonitrile or carboxylic acid ethyl ester derivatives by condensation of 4-hydroxycoumarin, an aldehyde, and an alkylnitrile. © 2013 by Walter de Gruyter Berlin Boston 2013.
Akbari A.,University of Jiroft
Tetrahedron Letters | Year: 2016
The magnetic ionic liquid, tri(1-butyl-3-methylimidazolium) gadolinium hexachloride, ([bmim]3[GdCl6]), has been used as an efficient green catalyst for the one-pot synthesis of 1,2,4,5-tetrasubstituted imidazoles via the condensation of benzil, an aromatic aldehyde, aniline, and ammonium acetate. Good to excellent yield, mild reaction conditions, as well as ease of operation and work-up are some advantages of the protocol. © 2015 Elsevier Ltd. All rights reserved.