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Information Processing in Agriculture 2017年第4期4卷 300-315页

作者： amir hossein Mirzabe Masoud Barati kakolaki Behnam Abouali Rasoul Sadin Department of Mechanical Engineering of Biosystems Aboureihan CollegeTehran UniversityTehranIran Department of Biosystems Bajgah CollegeShiraz UniversityShirazIran

In this study,a method based on digital image processing was employed to investigate effect of the moisture content on gravimetrical and frictional properties of the cucumber seeds and *** research indicated that the application of visual machines and the image processing could be a rapid method that enables accurate measurement of the dimensional parameters of two varieties of this product *** length,width,and thickness of the seeds of Rashid variety ranged from 6.40 to 9.07,2.91 to 4.21 and 0.65 to1.50 mm,respectively;the corresponding value of Negin variety ranged from 6.89 to 9.07,2.49 to 4.21,and 0.69 to 1.68 mm,*** and shell ratios of the Rashid variety were found to be 69.811 and 30.189%,respectively;the corresponding values of the Negin variety were found to be 72.727 and 27.273%,*** the bulk densities of the two varieties of cucumber seeds and kernels that decreased with the moisture content,true density and porosity of the two varieties of cucumber seeds and kernels *** the moisture content increased from 5.04 to 21.12%(d.b),the angle of the static friction of the seeds of Negin variety increased from 30.39°to 37.18°,28.83° to 34.991,24.37°to 30.04°,and 15.77°to 19.57°for wood,rubber,iron,and galvanized,respectively,the corresponding value of the Negin variety increased from 21.12to 27.16°,24.43°to 31.41°,19.90°to 25.59°and 14.09°to 18.12°as the moisture content increased from 5.02 to 21.02%(d.b).

关键词： Image processing Physical and mechanical properties Cucumber

Developing a robust correlation for prediction of sweet and sour gas hydrate formation temperature

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Petroleum 2022年第2期8卷 204-209页

作者： Mohammad Mesbah Samaneh Habibnia Shahin Ahmadi amir hossein Saeedi Dehaghani Sareh Bayat Young Researchers and Elites Club Science and Research BranchIslamic Azad UniversityTehranIran Department of Chemical Engineering Sahand University of TechnologyTabrizIran Department of Environmental Health Engineering Faculty of Environment Health EngineeringZabol University of Medical SciencesZabolIran Department of Petroleum Engineering Faculty of Chemical EngineeringTarbiat Modares UniversityTehranIran Department of Environmental Health Engineering School of Public HealthHamedan University of Medical SciencesHamedanIran

There are numerous correlations and thermodynamic models for predicting the natural gas hydrate formation condition but still the lack of a simple and unifying general model that addresses a broad ranges of gas *** study was aimed to develop a user-friendly universal correlation based on hybrid group method of data handling(GMDH)for prediction of hydrate formation temperature of a wide range of natural gas mixtures including sweet and sour *** establish the hybrid GMDH,the total experimental data of 343 were obtained from open *** selection of input variables was based on the hydrate structure formed by each gas *** modeling resulted in a strong algorithm since the squared correlation coefficient(R2)and root mean square error(RMSE)were 0.9721 and 1.2152,*** comparison to some conventional correlation,this model represented not only the outstanding statistical parameters but also its absolute superiority over *** particular,the result was encouraging for sour gases concentrated at H2S to the extent that the model outstrips all available thermodynamic models and *** statistical approach was applied on datasets to the discovery of the defected and doubtful experimental data and suitability of the *** to this algorithm,approximately all the data points were in the proper range of the model and the proposed hybrid GMDH model was statistically reliable.

关键词： Hydrate formation temperature HFT Wide range of natural gas mixtures Unified correlation Group method of data handling GMDH Outlier detection

Low gradient ascites: A seven-year course review

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World Journal of Gastroenterology 2005年第15期11卷 2337-2339页

作者： Fariborz Mansour-Ghanaei Afshin Shafaghi amir-hossein Bagherzadeh Mohammad-Sadegh Fallah Gastrointestinal and Liver Diseases Research Center (GLDRC)

AIM: To study the patients with low gradient ascites in hospitals of Guilan Province (northern Iran).METHODS: Patients admitted in hospitals of Guilan Province with low gradient ascites from 1993 to 2000 were enrolled in the study. Serum and ascitic fluid albumin levels were determined by biochemical reactions. The serum-ascitic albumin gradient (SAAG) less than 1.1 g/dL was considered low. Statistical analysis was performed with SPSS 9.0software and P＜0.05 was considered statistically ***: Of the 148 patients enrolled in the study, 72(48.6%) were males and 76 (51.4%) were females with a mean age of 59.03±13.54 years. Tuberculous peritonitis was the most frequent cause of low gradient ascites in 68 (45.9%). Other most frequent causes were cancer in 62 (41.9%), nephrotic syndrome in 9 (6%), pancreatitis in 6 (4%). Peritoneal cancer was found in 22 (35%),ovarian and gastric cancers were found in 14 (22.5%)and 12 (19.3%), respectively. All of which were the causes of ascites. The mean SAAG was 0.68±0.19 g/dL. The mean serum and ascitic fluid albumin concentrations were higher in tuberculous patients (P＜0.006), but lactate dehydrogenase (LDH) level was higher in cancer patients (P＜0.0001). In peritoneal tuberculosis, mean ascitic glucose concentration was significantly lower than other patients (P＜0.0001).CONCLUSION: Tuberculosis should be considered in all patients with low gradient ascites especially in developing countries (like Iran), as the first cause of ascites. In the approach to patients with low gradient ascites, ascitic fluid glucose, and LDH level are useful indicators for decision making.

关键词： Ascites Tuberculosis Cancer Albumin

Using Pd-salen complex as an efficient catalyst for the copper-and solvent-free coupling of acyl chlorides with terminal alkynes under aerobic conditions

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Chinese Chemical Letters 2010年第6期21卷 656-660页

作者： Mohammad Bakherad amir hossein Amin Ali Keivanloo Bahram Bahramian Mersad Raessi School of Chemistry Shahrood University of TechnologyShahroodIran

The palladium-salen complex palladium(Ⅱ) N,N'-bis{[5-(triphenylphosphonium)-methyl]salicylidene}-1,2-ethanediamine chloride was found to be a highly active catalyst for the copper- and solvent-free coupling reaction of terminal alkynes with different acyl chlorides in the presence of triethylamine as base,giving excellent ynones under aerobic conditions.

关键词： Copper-free Ynones Pd-salen complex Neat

Shear behavior and dilatancy of an artificial hard-matrix bimrock: An experimental study focusing on the role of blocky structure

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Rock Mechanics Bulletin

Rock Mechanics Bulletin 2024年第4期3卷 83-101页

作者： amir Yazdani Saeed Karimi-Nasab hossein Jalalifar Department of Mining Engineering Isfahan University of TechnologyIsfahanIran Department of Mining Engineering Shahid Bahonar University of KermanKermanIran Department of Petroleum Engineering Shahid Bahonar University of KermanKermanIran

Bimrocks are characterized by their geotechnically significant blocky structure,presenting complex shear *** study investigates the shear behavior and dilatancy of bimrocks featuring a rock-like matrix,such as *** study addresses a gap in current research,which has predominantly examined the shear behavior of soil-matrix bimrocks(bimsoils).Laboratory direct shear tests were performed on idealized models with varying volumetric block proportions(VBPs).The results highlight that blocks exert both positive and negative effects on shear strength,dilation,and block breakage factor(BF),depending on *** indicate 40%and 60%as critical VBPs,revealing distinct shear strength trends within this range,contrary to the dominant downward *** positively impact dilation and BF between 20%and 50%VBP,while negatively affecting them beyond this *** skeleton inherently promotes stable dilatancy under normal stress increments and intensifies stress dependency of shear *** in dilation angle concerning normal stress and VBP suggest the potential for characterizing this factor using equivalent strength and roughness,akin to rockfill *** assessments of equivalent strength revealed positive effects of blocks when VBP was between 30%and 70%.Lastly,the findings indicate that blocks notably impact pre-and post-peak behaviors by reducing shear stiffness and inducing local hardening *** study also discusses the similarities and distinctions in the function of blocks within soil-like and rock-like *** offers new insights into the exact role of blocks in bimrock shear behavior beyond the traditional interpretation through the variation of friction and cohesion.

关键词： Bimrock Rock-like matrix Shear behavior Shear strength Shear dilation Block breakage

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Journal of Integrative Medicine 2023年第4期21卷 354-360页

作者： amir Mohammad Jaladat Mahdi Alizadeh Vaghasloo Fatemeh Atarzadeh Mohammad hossein Ayati amir Hooman Kazemi Emine Akin Mohammad Hashem Hashempur Department of Persian Medicine School of MedicineShiraz University of Medical SciencesShiraz ***Iran Department of Traditional Medicine School of Persian MedicineTehran University of Medical SciencesTehran ***Iran Department of History of Medicine School of Traditional MedicineTehran University of Medical SciencesTehran ***Iran International School Beijing University of Chinese MedicineBeijing 100029China Alkali Life Center Healthy Life&Consultancy and EducationAtas ehir-Istanbul 34750Turkey Research Center for Traditional Medicine and History of Medicine Department of Persian MedicineSchool of MedicineShiraz University of Medical SciencesShiraz ***Iran

Kaiy(medieval cautery)is an ancient method of heat therapy in traditional Persian medicine(TPM).Some of its important applications have been neglected during the medical ***,different treatment modalities that incorporate heat,including moxibustion,have progressed in traditional Chinese *** this study,we reviewed the main TPM textbooks that were written specifically in the field of *** considered the traditional teachings in the context of contemporary information,gathered from the scientific literature about moxibustion and modern *** surgical therapeutic indications of kaiy(e.g.,debridement and coagulative procedures)have been advanced by the innovation of ***,those therapeutic applications that were based on the TPM humoral theory for relieving body coldness or myofascial pains—which are similar to moxibustion usages—have not received the same *** from the broad similarities of kaiy and moxibustion as thermal therapies with similar indications,there is a striking correspondence between kaiy point mapping and ***,further research on different kaiy aspects is recommended.

关键词： Traditional Persian medicine Moxibustion Chinese medicine Kaiy Medieval cautery Fire acupuncture

A soft computing approach for prediction of P-r-T behavior of natural gas using adaptive neuro-fuzzy inference system

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Petroleum 2017年第4期3卷 447-453页

作者： amir hossein Saeedi Dehaghani Mohammad Hasan Badizad Petroleum Engineering Group Department of Chemical EngineeringTarbiat Modares UniversityTehranIran Department of Chemical and Petroleum Engineering Sharif University of TechnologyTehranIran

Density is an important property of natural gas required for the design of gas processing and reservoir *** to expensive measurement of density,industry tends to predict gas density through an ***,all EOS are associated with uncertainties,especially at highpressure ***,using sophisticated EOS in commercial software renders simulation highly *** work aims to evaluate performance of adaptive neuro-fuzzy inference system(ANFIS)as a widely-accepted intelligent model for prediction of P-r-T behavior of natural *** experimental data reported in the literature,our inference system was trained with 95 data of natural gas densities in the temperature range of(250-450)K and pressures up to 150 ***,prediction by ANFIS was compared with those of AGA8 and GERG04 which both are leading industrial EOS for calculation of natural gas *** was observed that ANFIS predicts natural gas density with AARD%of 1.704;and is able to estimate gas density as accurate as sophisticated *** proposed model is applicable for predicting gas density in the range of(250-450)K,(10-150)MPa and also for sweet gases,i.e.,containing a low concentration of N2 and CO2.

关键词： Natural gas Density Fuzzy inference system Intelligent modelling Equation of state

Antioxidant therapy in acute,chronic and post-endoscopic retrograde cholangiopancreatography pancreatitis:An updated systematic review and meta-analysis

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World Journal of Gastroenterology 2015年第30期21卷 9189-9208页

作者： Maziar Gooshe amir hossein Abdolghaffari Shekoufeh Nikfar Parvin Mahdaviani Mohammad Abdollahi Department of Toxicology and Pharmacology Faculty of Pharmacyand Pharmaceutical Sciences Research Centerand Endocrinology and Metabolism Research CenterEndocrinology and Metabolism Clinical Sciences InstituteTehran University of Medical Sciences Pharmacology and Applied Medicine Department of Medicinal Plants Research CenterInstitute of Medicinal PlantsACECRKaraj 31375369Iran International Campus ICTUMSTehran University of Medical Sciences Department of Pharmacoeconomics and Pharmaceutical Administration Faculty of PharmacyTehran University of Medical Sciences Department of Pharmaceutics Faculty of PharmacyTehran University of Medical Sciences

AIM:To investigate the efficacy and adverse effects of antioxidant therapy in acute pancreatitis(AP),chronic pancreatitis(CP) and post-endoscopic retrograde cholangiopancreatography pancreatitis(PEP).METHODS:Pub Med,Scopus,Google Scholar,Cochrane library database,and Evidence-based medicine/clinical trials published before August 2014 were searched. Clinical and laboratory outcomes of randomized trials of antioxidant therapy in patients with AP,CP and PEP were included. The methodological quality of the trials was assessed by the Jadad score based on the description of randomization,blinding,and dropouts(withdrawals). The results of the studies were pooled and meta-analyzed to provide estimates of the efficacy of antioxidant ***:Thirty four trials out of 1069 potentially relevant studies with data for 4898 patients wereeligible for inclusion. Antioxidant therapy significantly reduced the length of hospital stay in AP patients {mean difference-2.59 d(95%CI:-4.25-(-0.93)],P = 0.002}. Although,antioxidant therapy had no significant effect on serum C reactive protein(CRP) after 5-7 d in AP patients [mean difference-9.57(95%CI:-40.61-21.48,P = 0.55],it significantly reduced serum CRP after 10 d {mean difference-45.16 [95%CI:-89.99-(-0.33)],P = 0.048}. In addition,antioxidant therapy had no significant effect on CP-induced pain [mean difference-2.13(95%CI:-5.87-1.6),P = 0.26]. Antioxidant therapy had no significant effects on the incidence of all types of PEP [mean difference 1.05(95%CI:0.74-1.5),P = 0.78],severe PEP [mean difference 0.92(95%CI:0.43-1.97),P = 0.83],moderate PEP [mean difference 0.82(95%CI:0.54-1.23),P = 0.33],and mild PEP [mean difference 1.33(95%CI:0.99-1.78),P = 0.06]. Furthermore,while antioxidant therapy had no significant effect on serum amylase after less than 8 h sampling [mean difference-20.61(95%CI:-143.61-102.39),P = 0.74],it significantly reduced serum amylase close to 24-h sampling {mean difference-16.13 [95%CI:-22.98-(-9.28)],P <

关键词： Acute pancreatitis Chronic pancreatitis Post-endoscopic retrograde cholangiopancreatographypancreatitis Antioxidants Meta-analysis

Experimental study of Iranian heavy crude oil viscosity reduction by diluting with heptane, methanol, toluene, gas condensate and naphtha

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Petroleum 2016年第4期2卷 415-424页

作者： amir hossein Saeedi Dehaghani Mohammad Hasan Badizad Petroleum Engineering Group Faculty of Chemical EngineeringTarbiat Modares UniversityTehranIran

Due to the high viscosity of heavy crude oils,production from these reservoirs is a demanding *** tackle this problem,reducing oil viscosity is a promising *** are various methods to reduce viscosity of heavy oil:heating,diluting,emulsification,and core annular *** this study,dilution approach was employed,using industrial solvents and gas *** viscosity of two Iranian heavy crude oils was measured by mixing with solvents at different *** of both oil samples with toluene and heptane,resulted in viscosity ***,their effect became less significant at higher concentrations of *** of forming hydrogen bonds,adding methanol to heavy crude oil resulted in higher *** adding condensate,viscosity of each sample *** condensate had a greater impact on heavier oil;however,at higher temperatures its effect was *** with naphtha decreased heavy oil viscosity in the same way as n-heptane and *** experimental investigation,different viscosity models were evaluated for prediction of heavy oil/solvent *** was recognized that Lederer'model is the best one.

关键词： Heavy oil Viscosity reduction Dilution Toluene Methanol n-Heptane Naphtha Gas condensate

Preparation, characterization and in vivo evaluation of alginate-coated chitosan and trimethylchitosan nanoparticles loaded with PR8 influenza virus for nasal immunization

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Asian Journal of Pharmaceutical Sciences 2019年第2期14卷 216-221页

作者： Jafar Mosafer amir-hossein Sabbaghi Ali Badiee Solmaz Dehghan Mohsen Tafaghodi Research Center of Advanced Technologies in Medicine Torbat Heydariyeh University of Medical Sciences School of Pharmacy Mashhad University of Medical Sciences Student Research Committee Mashhad University of Medical Sciences Nanotechnology Research Center Pharmaceutical Technology Institute Mashhad University of Medical Sciences

For efficient mucosal vaccine delivery, nanoparticulate antigens are better taken by microfold cells in the nasal associated lymphoid tissue and also dendritic cells. Nanoparticles based on polymers such as chitosan(CHT) and its water soluble derivative, trimethylchitosan(TMC), could be successfully used as carrier/adjuvant for this purpose. Sodium alginate, a negatively charged biopolymer, could modify the immunostimulatory properties of CHT and TMC NPs and increase their stability. Sodium alginate(ALG)-coated chitosan(CHT)and trimethylchitosan(TMC) nanoparticles(NPs) loaded with inactivated PR8 influenza virus were successfully prepared by direct coating of the virus with CHT or TMC polymers to evaluate their immunoadjuvant potential after nasal immunization. After nasal immunizations in BALB/c mice, PR8-CHT formulation elicited higher IgG2 a and Ig G1 antibody titers compared with PR8-TMC. ALG coating of this formulation(PR8-CHT-ALG) significantly decreased the antibody titers and a less immune response was induced than PR8-TMC-ALG formulation. PR8-TMC-ALG formulation showed significantly higher Ig G2 a/Ig G1 ratio, as criteria for Th1-type immune response, compared with PR8-CHT-ALG and PR8 virus alone. Altogether, the PR8-TMC-ALG formulation could be considered as an efficient intranasal antigen delivery system for nasal vaccines.

关键词： Chitosan Trimethyl chitosan Alginate PR8 influenza virus Nasal immunization