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Showing 5 results for Ghelichi
Effects of lidocaine on water quality and hematological parameters in simulated transportation of common carp, (Cyprinus carpio)
Afshin Ghelichi, Sara Jorjani, Yokabod Salmani,
Volume 2, Issue 2 (9-2013)
Abstract
: The effects of lidocaine on water quality and some hematological parameters in simulated transportation of the fingerling common carp, was investigated. Dissolved oxygen and ammonia of the control group and 0.01, 0.03 and 0.05 ml/lit lidocaine treated groups were tested at 0 h, 1, 2 h, 3 h, 4 h and 5 h simulated transportation. For the hematological assessment, blood samples were collected from the caudal peduncle of fish in all of the treatments at the beginning and termination of the experiment. The results showed decreased oxygen consumption and ammonia excretion by the fish treated with lidocaine during the experiment. No significant differences in the hematological parameters were found in the levels of RBC, Hb, HCT, MCV, MCH, MCHC and WBC in all the groups (p<0.05).
Proximate and Amino Acid Composition, Antioxidant Properties, ACE Inhibitory Effect, and Antibacterial Power of Protein Hydrolysates of Common Carp Roe by Alcalase
S. Ghelichi , B. Shabanpour , P. Pourashouri,
Volume 7, Issue 2 (Spring 2018)
Abstract
Aims: Fish egg has a high nutritional value and is known as an offshore product in the fish processing industry in Asia. Thus, the present study aimed at evaluating proximate and amino acid composition, antioxidant properties, ACE inhibitory effect, and antibacterial power of protein hydrolysates from lyophilized common carp roe by Alcalase.
Materials and Methods: In the present experimental study, the lyophilized roe was subjected to hydrolysis by Alcalase for 30, 60, 90, and 120 minutes at pH 8 and 55˚C. Fat, as well as moisture, ash and protein were measured by AOAC and amino acid composition by high-performance liquid chromatography-mass spectrometry. DPPH scavenging activity, metal ion chelating, ACE inhibitory effect and anti-bacterial power of the samples were analyzed. The data were analyzed by SPSS 21, using ANOVA and LSD tests. Antioxidant property of hydrolysates increased with their concentrations.
Findings: By increasing the hydrolysis time, protein content, protein recovery percentage, and ash content increased, but the amount of fat and moisture decreased. The most abundant amino acids in common carp roe and its protein hydrolysates were valine, lysine, arginine, and leucine. The antioxidant properties of the samples increased with increasing concentration. DPPH scavenging activity of hydrolysates at 20mg/ml was significantly higher than that of BHT solution (p<0.05). All the hydrolysates exhibited antioxidant, ACE inhibitory and antibacterial effects.
Conclusion: Due to the high content of protein, bioactive peptides, and essential and unnecessary amino acids, Common carp roe protein hydrolysates has a high antioxidant property, ACE inhibitory and antibacterial properties.

Modeling and Prioritizing Ecotourism Potential in National Park and Protected Area of Sarigol with Fuzzy-AHP in GIS

Volume 11, Issue 2 (Spring 2023)
Abstract
Aims: Tourism can significantly contribute to protecting and developing the environment and national parks as essential sites. Ecotourism, one sustainable tourism form, is based on natural attractions. This study aims to identify and prioritize appropriate ecotourism sites in Sarigol National Park and Protected Area.
Methods: To this end, some criteria, including landform, climate, wildlife habitats, vegetation type and density, and soil of the area, were investigated. Elevation, slope, aspect, precitipation, sunny days in month, soil erosion, soil depth, vegetation type, vegetation density, animal type were assessed as sub-criteria, too. The potential ecological map was drawn using the Fuzzy-Analytical Hierarchy Process (Fuzzy-AHP) based on the criteria and sub-criteria. Also, its regional attractiveness map was identified by field investigation with Global Positioning System (GPS) and weighting via a questionnaire and Geographic Information System (GIS), then was compared with the potential ecological map. Finally, appropriate and potential tourism and ecotourism sites were identified.
Findings: The results indicated that northern parts of the area, Izi Waterfall, and some parts of the National Park enjoy capabilities of ecotourism development; these sites enjoy both ecological capabilities and attractions to attract tourists.
Conclusion: Identifying ecotourism sites in the present study contributes to better management, tourism development, and protection of the study area.

Designing recreational trails in Sarigol National Park and Protected Area, Iran

Volume 11, Issue 3 (Summer 2023)
Abstract
Aims: Access paths to natural attractions in protected areas must be designed and developed considering their impacts on the environment. Visitors' movement in the areas where are highly sensitive to soil erosion may cause destructive impacts on trails such as widening, increasing susceptibility to erosion, and damaging surrounding vegetation. This research aims to suggest a sustainable trail network (off-road vehicles and hiking trails) in Sarigol National Park and Protected Area,
Methods:  The study has been carried out based on the least-cost path algorithm, and comparing the results with existing recreation trails. The required field information including the width of 431 trails and 15 environmental factors affecting the trail width was obtained through the study area. Analysis of Covariance has been used for estimating the potential of pathwidth expansion. The accuracy of the model was assessed by root mean square error which is 29cm for hiking trails and 126cm for off-road vehicles trails.
Findings: One optimized off-road vehicles trail and one optimized hiking trails in the study are were suggested using degradation map and least cost patch model. The findings of the present study indicated that existing paths are located in areas with high susceptibility to widening because of crowding.
Optimization of geometrical parameters in a lead-acid battery using response surface method to access of maximum capacity, minimum charge-time and minimum temperature rise

Volume 18, Issue 4 (8-2018)
Abstract
Increasing of capacity in lead-acid batteries and reducing charging time in lower temperature are considered as some main challenges of designers and manufacturers. Geometrical properties of battery plates such as thickness and maximum activated area are some of effective parameters on battery performance. Thus, determining of optimum values for independent variables is an important problem for battery industry. In the present study, a numerical solution code is developed using computational fluid dynamic method to simulate battery behavior. Numbers of 50 runs are suggested using response surface method. For each response one empirical model is extracted as a function of independent variables and from these models the optimization process is done. The results shows that in positive electrode thickness of 0.078 cm, negative electrode thickness of 0.53 cm, separator thickness of 0.04 cm and maximum activated areas for positive and negative electrode of 80 cm-1 is an optimum condition to get maximum capacity, minimum charging time and temperature. A confirmation test is done and it demonstrates that the results are in good agreement to predicted optimum results. In conclusion, the present study shows that by changing geometrical properties of the battery one can improve its performance.
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