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Prediction of oil flow rate through an orifice flow meter: Artificial intelligence alternatives compared

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Petroleum 2020年第4期6卷 404-414页

作者： Hamzeh ghorbani David A.Wood Abouzar Choubineh Afshin Tatar Pejman Ghazaeipour Abarghoyi Mohammad Madani Nima Mohamadian Young Researchers and Elite Club Ahvaz BranchIslamic Azad UniversityAhvazIran DWA Energy Limited LincolnUnited Kingdom Petroleum Department Petroleum University of TechnologyAhwazIran Young Researchers and Elite Club North Tehran BranchIslamic Azad UniversityTehranIran National Iranian South Oil Company(NISOC) AhvazIran Young Researchers and Elite Club Omidiyeh BranchIslamic Azad UniversityOmidiyehIran

Fluid-flow measurements of petroleum can be performed using a variety of equipment such as orifice meters and wellhead *** is useful to understand the relationship between flow rate through orifice meters(Qv)and the five fluid-flow influencing input variables:pressure(P),temperature(T),viscosity(μ),square root of differential pressure(ΔP^0.5),and oil specific gravity(SG).Here we evaluate these relationships using a range of machine-learning algorithms applied to orifice meter data from a pipeline flowing from the Cheshmeh Khosh Iranian oil *** coefficients indicate that(Qv)has weak to moderate positive correlations with T,P,andμ,a strong positive correlation with theΔP^0.5,and a weak negative correlation with oil specific *** order to predict the flow rate with reliable accuracy,five machine-learning algorithms are applied to a dataset of 1037 data records(830 used for algorithm training;207 used for testing)with the full input variable values for the data set *** algorithms evaluated are:Adaptive Neuro Fuzzy Inference System(ANFIS),Least Squares Support Vector Machine(LSSVM),Radial Basis Function(RBF),Multilayer Perceptron(MLP),and Gene expression programming(GEP).The prediction performance analysis reveals that all of the applied methods provide predictions at acceptable levels of *** MLP algorithm achieves the most accurate predictions of orifice meter flow rates for the dataset *** and RBF also achieve high levels of *** and LSSVM perform less well,particularly in the lower flow rate range(i.e.,<40,000 stb/day).Some machine learning algorithms have the potential to overcome the limitations of idealized streamline analysis applying the Bernoulli equation when predicting flow rate across an orifice meter,particularly at low flow rates and in turbulent flow *** studies on additional datasets are required to confirm this.

关键词： Orifice flow meters Flow-rate-predicting virtual meters Multiple machine-learning algorithm comparisons Metrics influencing oil flow Flow-rate prediction error analysis

Novel Point Mutations in 3'-Untranslated Region of GATA4 Gene Are Associated with Sporadic Non-syndromic Atrial and Ventricular Septal Defects

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Current Medical Science 2022年第1期42卷 129-143页

作者： Mehri KHATAMI Sajedeh ghorbani Mojgan Rezaii ADRIANI Sahar BAHALOO Mehri Azami NAEINI Mohammad Mehdi HEIDARI Mehdi HADADZADEH Department of Biology Faculty of ScienceYazd UniversityYazd ***Iran Department of Cardiac Surgery Afshar HospitalShahid Sadoughi University of Medical SciencesYazd ***Iran

Objective:Transcription factor GATA4 has significant roles in embryonic heart *** of GATA4 appear to be responsible for a wide variety of congenital heart defects(CHD).Despite the high prevalence of GATA4 mutations in CHD phenotypes,extensive studies have not been *** 3'-untranslated region(3'-UTR)of tho GATA4 gene comprises regulatory motifs and microRNA binding sites that are critical for the appropriate gene expression,nuclear transportation,and regulation of translation,and stability of *** study aimed to evaluate the association between mutations in the 3'-UTR of the GATA4 gene and CHD risk among Iranian patients.

关键词： congenital heart disease GATA4 S'-untranslated region mutation in-silico analysis

Clinical and experimental studies on polyherbal formulations for diabetes: current status and future prospective

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Journal of Integrative Medicine 2014年第4期12卷 336-345页

作者： Ahmad ghorbani Pharmacological Research Center of Medicinal Plants School of Medicine Mashhad University of Medical Sciences

Diabetes is a leading cause of morbidity an active search for antidiabetic drugs with greater and mortality in the world. There is currently effectiveness with fewer and less adverse side effects. Although numerous individual herbs have been experimentally or clinically reported to possess antidiabetic effects, considerably less research has been conducted on polyherbal compounds. It is believed that herbal compounds containing multiple plant products have synergistic antidiabetic effects and could enhance the desired actions. Several polyherbal formulations have been studied as therapeutic agents in diabetes management. To describe the current state of research on polyherbal compounds in the treatment of diabetes, an extensive review of literature was undertaken on several major databases. This paper presents what is known about the efficacy of these polyherbal formulations and compare their antidiabetic effects with those of current oral hypoglycemic drugs as reference. The percent decrease in blood glucose, lipids and other biochemical parameters achieved by each product in diabetic animals and patients is reported. Also, the possible mechanisms responsible for hypoglycemic action of polyherbal formulations are discussed.

关键词： diabetes mellitus hypoglycemic agents plants, medicinal review

Remarks on Extremal Overfull Graphs

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Applied Mathematics 2013年第8期4卷 1106-1108页

作者： Modjtaba ghorbani Department of Mathematics Faculty of Science Shahid Rajaee Teacher Training University Tehran Iran

An overfull graph is a graph whose number of its edges is greater than the product of its maximum degree and?[n/2] , where n is the number of vertices. In this paper, some extremals of overfull graphs are presented. W... 详细信息

关键词： Overfull Graph Edge Chromatic Number Plannar Graph

The Structure Functions in the Weak and Semileptonic Decay of Meson B to the Mesons D and D*: A Computational Study

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Journal of Modern Physics 2012年第2期3卷 208-213页

作者： Alireza Heidari Mohammadali ghorbani Institute for Advanced Studies Tehran Iran

The following article has been retracted due to the investigation of complaints received against it. Mr. Mohammadali ghorbani (corresponding author and also the last author) cheated the author’s name: Alireza Heidari. The scientific community takes a very strong view on this matter and we treat all unethical behavior such as plagiarism seriously. This paper published in Vol.3 No.2, 208-213, 2012, has been removed from this site.

关键词： Bethe-Salpeter Equation Heavy-Mesons Decay Weak Decay Quark Meson Semileptonic Decay Hadron Hadronic Decays

A Case of Megaloblastic Anemia with Thrombocytopenia

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Open Journal of Obstetrics and Gynecology 2016年第9期6卷 534-538页

作者： Somayeh Moghadam Maryam ghorbani Alborz University of Medical Sciences Alborz Iran Qom University of Medical Sciences Qom Iran

Megaloblastic anemias are a group of hematologic disorders in which abnormal DNA synthesis causes blood and bone marrow disorders. This type of anemias occurs as a result of folic acid deficiency or impaired vitamin B12 absorption. The prevalence of this type of anemia is highly variable worldwide and megaloblastic anemia caused by lack of vitamin B12 (cyanocobalamin) is rare during pregnancy [1]. In this case report, we report follow-ups conducted for a pregnant 33-year-old woman, G2, P1, with a history of previous natural childbirth who attended Kamali Hospital due to labor pain associated with severe thrombocytopenia. Although this woman was injected 10 units of PLT and also vitamin B12 (cyanocobalamin), folic acid and corticosteroids in the course of treatment, her platelet level has not yet returned to normal levels after 6 months and she is still being treated.

关键词： Megaloblastic Anemia Folic Acid Vitamin B12

The Computation of Scalar Curvature in the Four-State Mixed Spin Model and the Investigation of Its Behavior: A Computational Study

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Journal of Modern Physics 2012年第1期3卷 37-42页

作者： Alireza Heidari Mohammadali ghorbani 不详

The following article has been retracted due to the investigation of complaints received against it. Mr. Mohammadali ghorbani (corresponding author and also the last author) cheated the authors’ name: Alireza Heidari, Foad Khademi,Jahromi and Roozbeh Amiri. The scientific community takes a very strong view on this matter and we treat all unethical behavior such as plagiarism seriously. This paper published in Vol.3 No.4 334-339, 2012, has been removed from this site.

关键词： Scalar Curvature Phase Transition Spin Models

Effect of Wetting-Drying Cycles on Redistribution of Lead in Some Semi-Arid Zone Soils Spiked with a Lead Salt

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Pedosphere 2012年第3期22卷 304-313页

作者： H.KHODAVERDILOO M.RAHMANIAN S.REZAPOUR S.ghorbani DASHTAKI H.HADI F.X.HAN Department of Soil Science Urmia UniversityUrmia 57135-165 (Iran) Department of Soil Science Shahrekord UniversityShahrekord 88186/34141 (Iran) Department of Agronomy and Plant Breeding Urmia UniversityUrmia 57135-165 (Iran) Department of Chemistry and Biochemistry JacksonState UniversityJacksonMS 39217-0510 (USA)

Mobility and bioavailability of lead （Pb） could be affected considerably by soil physicochemical properties; however, less is known about the effect of Pb levels and aging time. This study was conducted to evaluate the effects of Pb levels and wetting-drying （WD） cycles on distribution and bioavailability of Pb in three semi-arid zone soils treated with different levels of Pb（NO3）2. Wetting-drying cycles simulated the actual field irrigation in the semi-arid soils. A soil with a long history of Pb contamination was also taken as a reference soil. The soils were spiked with various levels of Pb and incubated under WD cycles for 160 d. Sequential extractions and batch sorption experiments were performed to assess the fractionation of Pb in the spiked soils. Redistribution index （Uts） and reduced partitioning parameter （IR） were applied to semi-quantify the distribution of Pb in the spiked soils. A small amount of Pb sorbed was desorbed by the soils, indicating a strong and irreversible binding of Pb in the studied soils. Contribution of carbonate-bound （Car） and residual （Res） Pb fl＇actions to the total Pb of the soils was more than 97%. The Car, soluble plus exchangeable （SE）, and organic matter-bound （OMB） fractions of Pb were transferred to the Res fraction under the WD cycles. The IR and Uts values were influenced by Pb loading levels and WD; therefore, the Pb lability and/or redistribution pattern could semi-quantitatively be assessed via these parameters. At the end of the experiment, the Ia and Uts values for the Pb salt-spiked soils did not show the quasi- equilibrium state. The lability of Pb in the soils decreased with increasing incubation time and showed a strong dependence on Pb levels and soil chemical composition. WD cycles significantly affected the overall lability of Pb in soils through influencing the redistribution of Pb among solid-phase components.

关键词： bioavailability heavy metals mobility redistribution index reduced partitioning parameter

The relationship between serum zinc levels and rheumatoid arthritis activity

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Frontiers in Biology 2018年第1期13卷 51-55页

作者： Elham Rajaee Karim Mowla Ali ghorbani Mehrdad Dargahi-Malamir Marzieh Zarei Faraj Allah Rahimikhah Golestan Hospital Clinical Research Development Unit Ahvaz Jundishapur University of Medical Sciences Ahvaz Iran Department of Nephrology Ahvaz Jundishapur University of Medical Sciences Ahvaz Iran Shiraz University of medical Sciences Shiraz Iran Department of Internal Medicine Ahvaz Jundishapur University of Medical Sciences Ahvaz 1ran

OBJECTIVES： Rheumatoid arthritis （RA） is one of the most prevalent chronic autoimmune diseases; it typically involves the hands, wrists, ankles, and eventually all joints. Some studies have reported that zinc serum levels are lower in patients with RA than in healthy individuals. MATERIALS and METHODS： Seventy-nine patients with RAwere selected. The patients were all less than 75 years old and were diagnosed by a rheumatologist. Serum zinc levels were measured using the flame photometry method with a blood sample of 5 mL. The relationship between the average serum zinc level and disease activity was analyzed based on the DAS28 scoring scale for different RA groups. The significance threshold was set atp 〈 0.05. Data analyses were implemented in SPSS 22.0. RESULTS： There was a significant inverse relationship between the serum zinc levels and disease activity. Chi-square tests were used to compare zinc serum levels with respect to disease activity. There were significant differences in zinc levels among three groups of patients with different levels of disease severity, such that disease activity increased as the serum zinc level decreased （p 〈 0.001）. CONCLUSION： There was a significant inverse relationship between the serum zinc level and RA activity based on the DAS28 score. Therefore, it is recommended that mineral deficiencies should be addressed by optimizing the zinc supply along with other standard medications in order to reduce RA activity.

关键词： serum zinc level rheumatoid arthritis disease activity score DAS28