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Search Results: 1 - 10 of 454 matches for " Gholamreza Delbar "
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Examining the Condition of Controlling and Inspecting State Vessels (in Terms of Technical and Security Factors) Traveling to Bushehr Ports and Providing Suitable Solutions  [PDF]
Danial Hayati Zadeh, Behrooz Amraie, Gholamreza Delbar
Open Journal of Marine Science (OJMS) , 2016, DOI: 10.4236/ojms.2016.62020
Abstract: The aim of the study is to examine the technical and security conditions of state vessels traveling to Bushehrports. This research is filled out through a 22-item questionnaire by 40 security and controlling officers of Bushehrvessels. The results of Kolmogrov-Smirinov test suggest that the data are normal and T-test has been used for questionnaire analysis. The findings indicate that failure in technical and security certificates, failure of qualification certificate, failure of machinery and electrical appliances, structural safety defects, failure of telecommunication equipment, failure of security in under 500 tons motor boats and traditional and metal vessels [1]. As well, above 500 tons vessels traveling to Bushehr waters (state vessels) have suitable conditions.
Providing Appropriate Solutions for Treatment and Sewage of Wastewaters in Cargo Terminals of Shorelines: An Emphasis on Terminal Bandar  [PDF]
Gholamreza Mansourri
Open Journal of Ecology (OJE) , 2016, DOI: 10.4236/oje.2016.62009
Abstract: Low volume of produced wastewater and specific regional, environmental and economic condition in small communities determines the methods of treatment of sewage in such communities including shorelines of Bandar Abbas, Bushehr, Imam Khomeini Harbor and Chabahar Harbor. Ineffective methods of treating and sewing wastewater in aforesaid terminals as well as limitations of methods of wastewater treatment such as high level of underground waters doubled the necessity of considering alternative methods. In this paper, investigation of current conditions was performed through field observations and data collection regarding wastewater production in terminals and determination of qualitative specifications using sampling and carrying out pH, TSS, COD, BOD and temperature tests from inlet to outlet of available sewage system of abovementioned terminals and comparison with environmental organization standards corresponding to wastewater sewage and it was found out that conditions of available systems of wastewater treatment are not suitable. In this regard, modifying solutions for the sake of improving performance of systems of wastewater treatment of terminals is presented in this research. Finally, for wastewater treatment system of Bandar Abbas terminal, if there is no limitation for allocating lands, it is recommended to use artificial canebrake system with underground flow.
Examination of the Level of Heavy Metals in Wastewater of Bandar Abbas Wastewater Treatment Plant  [PDF]
Gholamreza Mansourri, Mehrzad Madani
Open Journal of Ecology (OJE) , 2016, DOI: 10.4236/oje.2016.62006
Abstract: One of the main environmental pollutants is heavy metals. Due to extensive usage in industry, these metals enter biological cycle rapidly and contaminated water and soil resources rapidly. In this work, lead, copper, zinc and chromium of Bandar Abbas wastewater are examined. For this research, nine stations were set for measurement in urban level in Bandar Abbas and sampling of aforesaid metals was performed in fall and winter 2006 in these stations. After extraction and preparation operations using APDC-MIBK, samples were measured using flame atomic absorption system. According to results, concentrate of studied metals was lower than allowable standard value set by Iran environmental protection organization for agricultural purposes and sewage to ground level waters. In addition, efficiency of Bandar Abbas wastewater treatment plant to remove these metals is 40% - 70% from which highest removal is for zinc as much as 71.1% and lowest level is for copper as much as 40.5%. However, copper level was higher than allowable level for agricultural purposes in spring and summer (0.21 mg/L and 0.23 mg/L, respectively) and lower in fall and winter (0.103 mg/L and 0.098 mg/L, respectively). Furthermore, changes in concentration of metals in these stations in various seasons were measured and analyzed using one-way variance analysis and simultaneous effects of time and place on measured variables were analyzed using two-way variance analysis.
Examining the Relationship of Organizational Agility and Organizational Forgetting with Organizational Effectiveness  [PDF]
Gholamreza Mohammad Ghasemi, Hossein Jenaabadi
Journal of Service Science and Management (JSSM) , 2015, DOI: 10.4236/jssm.2015.83045
Abstract: This study aimed to investigate the relationship of organizational agility and organizational forgetting with organizational effectiveness among staff of the education administration of Zahedan. The population of this study included a total of 645 staff of the education administration of Zahedan who served in the 2013-14 school year. Using the Krejcie-Morgan table, 200 individuals were selected through applying stratified random method. To collect data, three questionnaires including Organizational Agility [1], Organizational Forgetting [2] and Organizational Effectiveness [3] were used. Content validity of these questionnaires was approved by the faculty members of the Department of Management and confirmatory factor analysis was used to ensure the results. In addition, Cronbach’s alpha for the scales of organizational agility, organizational effectiveness and organizational forgetting was calculated, which was 0.73, 0.74 and 0.76, respectively. The results showed that there was a significant positive correlation between organizational agility and organizational effectiveness. Moreover, there was a significant positive relationship between organizational forgetting and organizational agility. In addition, there was a significant positive relationship between organizational forgetting and the components of organizational effectiveness. Additionally, there was a significant positive correlation between organizational agility and the components of organizational effectiveness.
Face recognition using color local binary pattern from mutually independent color channels
Gholamreza Anbarjafari
EURASIP Journal on Image and Video Processing , 2013, DOI: 10.1186/1687-5281-2013-6
Abstract: In this article, a high performance face recognition system based on local binary pattern (LBP) using the probability distribution functions (PDFs) of pixels in different mutually independent color channels which are robust to frontal homogenous illumination and planer rotation is proposed. The illumination of faces is enhanced by using the state-of-the-art technique which is using discrete wavelet transform and singular value decomposition. After equalization, face images are segmented by using local successive mean quantization transform followed by skin color-based face detection system. Kullback–Leibler distance between the concatenated PDFs of a given face obtained by LBP and the concatenated PDFs of each face in the database is used as a metric in the recognition process. Various decision fusion techniques have been used in order to improve the recognition rate. The proposed system has been tested on the FERET, HP, and Bosphorus face databases. The proposed system is compared with conventional and the state-of-the-art techniques. The recognition rates obtained using FVF approach for FERET database is 99.78% compared with 79.60 and 68.80% for conventional gray-scale LBP and principle component analysis-based face recognition techniques, respectively.
Dependence of resistivity of electrodeposited Ni single layer and Ni/Cu multilayer thin films on the film thickness, and electron mean free path measurements of these films
Gholamreza Nabiyouni
Iranian Journal of Physics Research , 2007,
Abstract: The Boltzmann equation is a semiclassical approach to the calculation of the electrical conductivity. In this work we will first introduce a simple model for calculation of thin film resistivity and show that in an appropriate condition the resistivity of thin films depends on the electron mean free path, so that studying and measurement of thin films resistivity as a function of film thickness would lead to calculation of the electron mean free path in the films. Ni single layers and Ni/Cu multilayers were grown using electrodeposition technique in potentiostatic mode. The films also characterized using x-ray diffraction technique and the results show at least in the growth direction, the films were grown epitaxially and follow their substrate textures.
Introducing New Laboratory-Developed Molecular Methods in the Clinical Microbiology Laboratories
Gholamreza Pouladfar
Iranian Journal of Medical Sciences , 2012,
Abstract:
Iron Supplementation During Pregnancy and Birth Weight in Iran: A Retrospective Study
Gholamreza Veghari
Pakistan Journal of Biological Sciences , 2009,
Abstract: This study was designed to determine the relationship between Maternal Iron Supplement (MIS) and Birth Weight (BW) in a rural area in North of Iran. A sample size of 2881 children was chosen by cluster and random sampling from 20 villages. MIS status, BW and demographic characteristics were recorded. Data was analyzed by SPSS 15 software and statistical significance was defined as p<0.05. Mean and SD of BW is 3177.2±522.6 g. Taking iron supplement by mothers with low birth weight, normal birth weight and high birth weight were shown 96.1, 94.9 and 87.1%, respectively. MIS increased birth weight only in younger mother, <5 family number and <3rd birth order but there is no statistical significant. Logistic regression showed that younger mother (p = 0.014, OR = 2.181), Low income (p = 0.001, OR = 1.601) and primary birth order (p = 0.001, OR = 1.738) are risk factor for low birth weight. MIS only in younger mother, low economic status and primary birth order led to improve birth weight. Maternal age, economic status, birth order and ethnicity are risk factors for low birth weight.
Anemia in North of Iran (South-east of Caspian Sea)
Veghari Gholamreza
Pakistan Journal of Biological Sciences , 2007,
Abstract: The main purpose of this study was set up to determine iron deficiency and anemia due to iron deficiency among the women in villages around of Gorgan. The comparison of three groups (Fars-native, Turkman and Sistanee) that living in this area and comparison of pregnant and non-pregnant about hematological indexes are other objectives of this study. By random-clustering method were chosen 415 women of 18-35 years old in 20 villages of Gorgan. Gorgan district located in north of Iran and south-east of Caspian sea. In the pregnant women, serum Iron less than 30 μg dL-1, Hemoglobin (Hb) less than 11 g dL-1, transferrin saturation (T.S) less than 16% were be consider as anemia point and in non-pregnant women, this point is the serum iron less than 40 μg dL-1, Hb less than 12 g dL-1 and TS less than 16%. The prevalence of Iron Deficiency (ID), Anemia and Iron Deficiency Anemia (IDA) were 35.6% (149), 25.8% (107) and 13.5% (56), respectively. Positive correlation exist between serum Iron and Hb (p<0.0001, r = 0.335), HCT (p<0.01, r = 0.1581), MCH (p<0.01, r = 0.1661) and MCHC (p<0.001, r = 0.262). The prevalence of ID in Fars-native, Turkman and Sistanee women were 33.6, 47.6 and 26.2%, respectively. The rate of anemia on the same women were 27.7, 18.75 and 22.33% and IAD were 15.6, 11.9 and 11.3%, respectively. χ2-test showed a meaningful difference in regard to ID and anemia among the three groups of women (p<0.005). A statistical significant correlation was seen between Hb and MCHC (r = 0.467, p<0.001). In pregnant women, the prevalence of the anemia on the basis of serum iron index, T.S and Hb were seen 24.2, 42.4 and 18.2% , respectively, versus non-pregnant women were 21.2, 34.55 and 20.98%. In summary, can be concluded that the prevalence of anemia its characteristic also is one of the women nutritional problems in the villages around the Gorgan and it is different among the three groups of women and in Fars-native is higher than other groups. Too, anemia is a nutritional problem in pregnant women.
Design of a software tool for analyzing water looped networks by linear theory
Gholamreza Ghainy
Koomesh , 2009,
Abstract: Introduction: Analyzing water looped networks lead to spontaneous solving of some linear andnon-linear equations. So repeating methods must be used. The goal of this study was to design asoftware tool for analyzing water looped networks by linear theory.Materials and Methods: The software has been written in Delphi programming language andprocess of calculation is as following: (1) forming independent linear equations of discharge in nodesof network, (2) forming approximate linear equations head loss in network loops, (3) simultaneoussolving of total linear equations and approximate linear equations, (4) repeated forming linear headloss with closer approximate by result of solving equations, and (5) repeating stage three and four tillstabilization results quantity of solving equations.Results: This software is able to solve the network with following specifications: (1) it doesn’t haveany limitation in view point of the number of water network loops, (2) the looped networks consistingsome sources, and (3) the networks containing pumps for increasing potential energy.Conclusion: Some networks with different characteristics such as the number of loops formingnetwork, network with some sources and the networks containing pumps were analyzed by thissoftware with hardy - cross methods and same results were obtained that these results are the evidencefor proper work of this software. This software is not able to solve the networks containing pressurerelief valves and checks valves and can get complicated in future.
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