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Improvement of Mining Fuzzy Multiple-Level Association Rules from Quantitative Data

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Journal of Software Engineering and Applications 2012年第3期5卷 190-199页

作者： alireza mirzaei nejad kousari Seyed Javad Mirabedini Ehsan Ghasemkhani Department of Computer Science Central Tehran Branch Islamic Azad University Tehran Iran Department of Computer Science East Tehran (Ghiamdasht) Branch Islamic Azad University Tehran Iran

Data-mining techniques have been developed to turn data into useful task-oriented knowledge. Most algorithms for mining association rules identify relationships among transactions using binary values and find rules at a single-concept level. Extracting multilevel association rules in transaction databases is most commonly used in data mining. This paper proposes a multilevel fuzzy association rule mining model for extraction of implicit knowledge which stored as quantitative values in transactions. For this reason it uses different support value at each level as well as different membership function for each item. By integrating fuzzy-set concepts, data-mining technologies and multiple-level taxonomy, our method finds fuzzy association rules from transaction data sets. This approach adopts a top-down progressively deepening approach to derive large itemsets and also incorporates fuzzy boundaries instead of sharp boundary intervals. Comparing our method with previous ones in simulation shows that the proposed method maintains higher precision, the mined rules are closer to reality, and it gives ability to mine association rules at different levels based on the user’s tendency as well.

关键词： Association Rule Data Mining Fuzzy Set Quantitative Value Taxonomy

Evolution of filamentary molecular clouds in the presence of magnetic fields

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Research in Astronomy and Astrophysics 2014年第1期14卷 66-76页

作者： alireza Khesali Khodadad Kokabi Kazem Faghei Mohsen nejad-Asghar Department of Physics University of Mazandaran School of Physics Damghan University

The purpose of this paper is to explore the effect of magnetic fields on the dynamics of magnetized filamentary molecular clouds. We suppose there is a filament with cylindrical symmetry and two components of axial and toroidal magnetic fields. In comparison to previous works, the novelty in the present work involves a similarity solution that does not define a function of the magnetic fields or density. We consider the effect of the magnetic field on the collapse of the filament in both axial and toroidal directions and show that the magnetic field has a braking effect, which means that the increasing intensity of the magnetic field reduces the velocity of collapse. This is consistent with other studies. We find that the magnetic field in the central region tends to be aligned with the filament axis. Also, the magnitude and the direction of the magnetic field depend on the magnitude and direction of the initial magnetic field in the outer region. Moreover, we show that more energy dissipation from the filament causes a rise in the infall velocity.

关键词： ISM: clouds -- ISM: magnetic fields

Experimental study of ice accretion effects on aerodynamic performance of an NACA 23012 airfoil

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Chinese Journal of Aeronautics 2016年第3期29卷 585-595页

作者： Sohrab Gholamhosein Pouryoussefi Masoud mirzaei Mohammad-Mahdi Nazemi Mojtaba Fouladi alireza Doostmahmoudi Department of Aerospace Engineering K.N.Toosi University of Technology

In this paper, the effects of icing on an NACA 23012 airfoil have been studied. Exper- iments were applied on the clean airfoil, runback ice, horn ice, and spanwise ridge ice at a Reynolds number of 0.6 x 10^6 over angles of attack from -8° to 20% and then results are compared. Gener- ally, it is found that ice accretion on the airfoil can contribute to formation of a flow separation bubble on the upper surface downstream from the leading edge. In addition, it is made clear that spanwise ridge ice provides the greatest negative effect on the aerodynamic performance of the airfoil. In this case, the stall angle drops about 10^6 and the maximum lift coefficient reduces about 50% which is hazardous for an airplane. While horn ice leads to a stall angle drop of about 4°and a maximum lift coefficient reduction to 21%, runback ice has the least effect on the flow pattern around the airfoil and the aerodynamic coefficients so as the stall angle decreases 2% and the maximum lift reduces about 8%.

关键词： Airfoil icing Aviation accidents:Horn ice NACA 23012 airfoilRunback ice Separation bobble Spanwise ridge ice

Effect of axial length and anterior chamber depth on the peripheral refraction profile

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International Journal of Ophthalmology(English edition) 2021年第2期14卷 292-298页

作者： Masoud Khorrami-nejad Raha Moradi alireza Akbarzadeh Baghban Bahram Khosravi Translational Ophthalmology Research Center Farabi Eye HospitalTehran University of Medical SciencesTehran ***Iran School of Rehabilitation Shahid Beheshti University of Medical SciencesTehran ***Iran Proteomics Research Center Department of BiostatisticsSchool of Allied Medical SciencesShahid Beheshti University of Medical Sciences

AIM:To evaluate the effect of axial length(AL)and anterior chamber depth(ACD)on peripheral refractive profile in myopic patients compared to emmetropic ***:This cross-sectional study was conducted in right eyes of 58 participants of whom 38 were emmetropic and 20 were *** and peripheral refraction were measured at 10°,20°,and 30°eccentricities in nasal and temporal fields using an open-field *** Lenstar LS900 was used to measure ACD and *** participants were divided into three groups of short(24.5 mm)according to AL and three groups of low ACD(3.60 mm)according to ***:The mean age of the participants was 22.26±3.09 y(range 18-30 y).The peripheral mean spherical refractive error showed a hypermetropic shift in myopic and emmetropic groups although this shift was more pronounced in the myopic *** results showed significant changes in the spherical equivalent,J0,and J45 astigmatism in all gazes with an increase in eccentricity(P<0.001).The pattern of refractive error changes was more noticeable in long and short eyes versus normal AL ***,the pattern of peripheral refractive changes was much more prominent in the high ACD group versus the normal ACD group and in the normal ACD group versus the low ACD ***:Peripheral refraction changes are greater in participants with AL values outside the normal range and deeper ACD values compared to participants with normal AL and ACD.

关键词： anterior chamber depth axial length peripheral refraction

Shedding Light on Non Binding Constraints in Linear Programming: An Industrial Application

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American Journal of Operations Research 2018年第1期8卷 50-61页

作者： alireza Tehrani nejad Moghaddam Thibault Monier Energy Economist 22 Rue d’arcueil Paris France Energy Economist 10 Rue Mathis Paris France

In Linear Programming (LP) applications, unexpected non binding constraints are among the “why” questions that can cause a great deal of debate. That is, those constraints that are expected to have been active based on price signals, market drivers or manager’s experiences. In such situations, users have to solve many auxiliary LP problems in order to grasp the underlying technical reasons. This practice, however, is cumbersome and time-consuming in large scale industrial models. This paper suggests a simple solution-assisted methodology, based on known concepts in LP, to detect a sub set of active constraints that have the most preventing impact on any non binding constraint at the optimal solution. The approach is based on the marginal rate of substitutions that are available in the final simplex tableau. A numerical example followed by a real-type case study is provided for illustration.

关键词： Linear Programming Solution Interpretation Non Binding Constraint Decision Support

Trigonella foenum-graecum seed extract modulates expression of lipid metabolism-related genes in HepG2 cells

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Asian Pacific Journal of Tropical Biomedicine 2019年第6期9卷 240-248页

作者： Maryam Mohammad-Sadeghipour Mehdi Mahmoodi Soudeh Khanamani Falahati-pour alireza Khoshdel Mohammad Ali Fahmidehkar Mohammad Reza mirzaei Mojgan Noroozi Karimabad Mohammad RezaHajizadeh Department of Clinical Biochemistry Faculty of MedicineRafsanjan University of Medical SciencesRafsanjanIran Molecular Medicine Research Center Inistitute of Basic Medical Sciences ResearchRafsanjan University of Medical SciencesRafsanjanIran Department of Clinical Biochemistry Afzalipoor Faculty of MedicineKerman University of Medical SciencesKermanIran Pistachio Safety Research Center Rafsanjan University of Medical SciencesRafsanjanIran Department of Clinical Biochemistry Faculty of Medicineand Pistachio Safety Research CenterRafsanjan University of Medical SciencesRafsanjanIran Department of Laboratory Sciences School of Paramedical SciencesTorbat Heydariyeh University of Medical SciencesTorbat HeydariyehIran

Objective:To investigate anti-dyslipidemic effects of hydroalcoholic fenugreek seed extracts,diosgenin,and 4-OH-Ile on HepG2 cell ***:HepG2 cells were treated with hydroalcoholic fenugreek seed extracts,diosgenin,4-OH-Ile,and ***20 was calculated using the MTT *** cells were then pretreated with IC20 concentrations for 24 and 48 *** time PCR was employed to measure expression of liver X receptor alpha(LXR a),sterol regulatory element-binding protein-1 C(SREBP-1 C),acetyl-CoA carboxylase(ACC),fatty acid synthase(FAS),fibroblast growth factor 21(FGF21),peroxisome proliferator-activated receptor gamma(PPAR γ),and lowdensity lipoprotein receptor(LDLR).Results:The results showed that LXR α(P=0.003,P<0.001).,SREBP-1 C(P<0.001,P<0.001),ACC(P=0.002,P=0.006),and FAS(P<0.001,P<0.001)were downregulated significantly,while FGF21(P<0.001,P<0.001),PPAR γ(P=0.004,P<0.001),and LDLR(P<0.001,P<0.001)were upregulated significantly in HepG2 cells treated with the IC20 of hydroalcoholic fenugreek seed extracts,diosgenin,4-OH-Ile,and orlistat in 24 and 48 h,***:Hydroalcoholic fenugreek seed extracts,diosgenin,and 4-OH-Ile significantly modulate the expression of some important lipid metabolism related genes,which is similar to *** foenum.-graecum seed extract or its derivatives should be further investigated for their dyslipidemia effects and its complications.

关键词： Fenugreek seed extract Diosgenin 4-Hydroxy-L-isoleucine Dyslipidemia Obesity

The global,prevalence,and risk factors of postoperative fever after percutaneous nephrolithotomy:A systematic review and meta-analysis

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Asian Journal of Urology 2024年第2期11卷 253-260页

作者： Reza Falahatkar Siavash Falahatkar Mohammad Amin Khajavi Gaskarei Masoomeh Afzalipoor Ali Mojtahedi Neda Aligolighasemabadi Ahmad Deilami Samaneh mirzaei Dahka Mohammad-Hossein Keivanlou alireza Jafari Urology Research Center Guilan University of Medical SciencesGuilanRashtIran Department of Surgery University of SaskatchewanSaskatoonCanada Microbiology Department School of MedicineGuilan University of Medical SciencesRashtIran Department of Internal Medicine School of MedicineGuilan University of Medical SiencesRashtIran School of Nursing and Midwifery Guilan University of Medical SciencesGuilanRashtIran

Objective:This study aimed to explore the global,prevalence,and risk factors of fever after percutaneous nephrolithotomy(PCNL)by conducting a systematic review and ***:The high-sensitivity searching was conducted without time limitation until December 30,2020 in Web of Sciences,Scopus,and PubMed based on inclusion and exclusion ***:The prevalence rates of fever and sepsis among patient undergoing PCNL were estimated 9.5%(95%confidence interval[CI]:9.3%-9.7%),and 4.5%(95%CI:4.2%-4.8%),*** tube was used in 9.96%(95%CI:9.94%-9.97%)of *** mean preoperative white blood cells of patients were 6.401×109/L;18.3%and 4.55%of patients were considered as the positive urinary culture and pyuria,*** 20.4%of patients suffered from residual *** odds ratios(ORs)of fever in patients who suffering from diabetes mellitus,hydronephrosis,staghorn stones,and blood transfusion were 4.62(95%CI:2.95-7.26),1.04(95%CI:0.81-1.34),2.57(95%CI:0.93-7.11),and 2.65(95%CI:1.62-4.35),*** who underwent PCNL in prone position were more likely to develop fever(OR:1.23;95%CI:0.75-2.00)than patients in supine ***:The current study showed that patients who suffer from diabetes mellitus,hydronephrosis,staghorn stones,nephrostomy tube or double-J stent,blood transfusion,and also patients who underwent PCNL in prone position surgery are more likely to develop a postoperative fever after PCNL.

关键词： Percutaneous nephrolithotomy Fever Hydronephrosis Diabetes Meta-analysis

Study on efficacy of Probiotic in Broiler Chickens diet

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Agricultural Sciences 2012年第1期3卷 5-8页

作者： Seyed Mozafar Seyed Mehdizadeh Taklimi Hushang Lotfollahian Ahmad Zarea Shahne Farhad mirzaei alireza Alinejad Animal Science Research Institute Karaj Iran College of Agriculture Islamic Azad University Ghaemshahr Iran College of Agriculture University of Tehran Karaj Iran

400 days old chicks were distributed randomly into 4 treatments and 4 replicates in each treatment (25 birds in each replicate) and fed standard feed. The effects of different levels of probiotic in diets for 49 days were studied. Humoral immune responses were studied by conducting experiments on cellular proliferation, entry and survival of beneficial bacteria in gut, immunoglobulin titers. Mean body weight. Gain, feed intake and feed efficiency were recorded significantly (P 8 cfu/g have different immunomodulating effects in broiler chickens.

关键词： Broiler Immunology Intestinal Morphology Probiotic

Evaluation of Abuse Drugs and Clinical Laboratory Tests Variations in Whole Blood ＆ Urine Samples of Abusers

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Journal of Pharmacy and Pharmacology 2018年第1期6卷 69-76页

作者： Majid Rezaei Basiri Mojgan Behshid alireza Najafi Saleh Alilou Haniyeh Mohebbi-Kamali: Fatemeh Hosseindoust Marziyeh Mokhtari Valiyollah Watani Ladan Aminzadeh Fatemeh Seyed nejad Ashraf Razavi Ligha Saadat Department of Pharmacology and Toxicology School of Pharmacy Tabriz University of Medical Sciences Tabriz 51999 Iran Medical Education Research Center Tabriz University of Medical Sciences Tabriz 51999 Iran Department of Medical Surgical School of Nursing and Midwifery Tabriz University of Medical Sciences Tabriz 51999 Iran Forensic and Legal Medicine of Organization Tabriz 515 7733541 Iran Welfare Organization of East Azarbayjan Tabriz 5156935 761 Iran

In this study, five hundred urine samples and five hundred blood samples of abusers were examined for the presence of alkaloid substances and abuse drugs in urines and bloods. These numbers of blood and urine samples of addicts in clinics of welfare organization, during detoxification treatment or maintenance treatment were screened for abuse drugs presence. The all of samples were tested through as a view of clinical laboratory methods. Age ranges of female patients were 35 ~ 15 and age range of males patients were 45 ~ 15. All patients filled questionnaire and satisfy forms too. First, all fresh urine and blood samples were examined to confirm presence drugs abuses, depend on their addiction and treatment, so all samples were confirmed by two tests. Then they were examined to other clinical laboratory tests. All data were analyzed by t-test and were Anova one way and two ways of Anova Turkey, and p 〈 0.05 was considered significant. The p-value of this study was p = 0.0001. The results of this study were showed that 4% of abusers had mild increase in hematocrite level and 2% of narcotic drugs abusers had mild lower level of blood sugars than normal range and 4% of participants had increase liver enzymes such ALT （alanine transferase）, AST （aspartat transferase）, ALP （alkaline phosphatease） and 1% of them had renal failure. Although blood level BUN （blood urea nitrogen） and creatinin were examined to evaluation of their renal failure .The results in Tabriz/Iran undrevision of welfare organization clinics were approximately showed that positive results of addiction are in each of urine and blood samples. Because some of abusers directly consumed full long time agonist or partial agonists＇ drugs such as methadone and buprenorphine for their maintenance therapy in clinics. Also doing test on blood samples has high importance in distinguishing and confirmation of drugs abuse in samples. Also in this study we conclude that among all drug analytical methods the cheapest

关键词： Abusers urine and whole blood samples strip test thin-layer chromatography abuse drugs clinical laboratory tests.