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Journal of Computational Mathematics 2021年第2期39卷 261-282页

作者： Pouria Assari fatemeh Asadi-Mehregan Mehdi Dehghan Department of Mathematics Faculty of SciencesBu-Ali Sina UniversityHamedan 65178Iran Department of Applied Mathematics Faculty of Mathematics and Computer SciencesAmirkabir University of TechnologyNo.424Hafez Ave.Tehran 15914Iran

This work describes an accurate and effective method for numerically solving a class of nonlinear fractional differential *** start the method,we equivalently convert these types of differential equations to nonlinear fractional Volterra integral equations of the second kind by integrating from both sides of ***,the solution of the mentioned Volterra integral equations can be estimated using the collocation method based on locally supported Gaussian *** local Gaussian-collocation scheme estimates the unknown function utilizing a small set of data instead of all points in the solution domain,so the proposed method uses much less computer memory and volume computing in comparison with global *** apply the composite non-uniform Gauss-Legendre quadrature formula to estimate singular-fractional integrals in the *** of the fact that the proposed scheme requires no cell structures on the domain,it is a meshless ***,we obtain the error analysis of the proposed method and demon-strate that the convergence rate of the approach is arbitrarily *** examples clearly show the reliability and efficiency of the new technique and confirm the theoretical error estimates.

关键词： Nonlinear fractional differential equation Volterra integral equation Gaussian-collocation method Meshless method Error analysis

A critical state based thermo-elasto-plastic constitutive model for structured clays

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Journal of Rock Mechanics and Geotechnical Engineering 2017年第6期9卷 1094-1103页

作者： Amir Hamidi Saeed Tourchi fatemeh Kardooni Department of Civil Engineering School of Engineering Kharazmi University Department of Civil and Environmental Engineering Universitat Politècnica de CatalunyaBarcelona Tech

In this paper, a critical state based thermo-elasto-plastic constitutive model is developed for destructured, naturally structured and artificially structured saturated clays. The model is an extension of the previously developed thermo-mechanical model by the authors for saturated clays, considering the effects of structure on the mechanical behaviors of the soil. It is based on change in the position of normal consolidation line(NCL) in a compression plane(e-ln p′) due to the soil’s structure and variation of temperature. The present model is able to simulate the mechanical behavior of structured saturated clays in a triaxial plane at elevated temperatures lower than the boiling point of water. An attempt has been made to use the lowest possible number of parameters compared with that of Came Clay model and to ensure that these new parameters have clear physical interpretations. The sufficiency of the model was verified by the test results on artificially and naturally structured soils using thermal triaxial tests.

关键词： Thermo-mechanical constitutive model Structured clays Cam Clay Normal consolidation line Boom Clay

Open visitation in the NICU:nurses’perspectives on barriers and facilitators

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Frontiers of Nursing 2023年第2期10卷 183-191页

作者： fatemeh Ghorbani School of Nursing and Midwifery Pediatric Health Research CenterTabriz University of Medical SciencesTabriz ***Iran

Objective:This study aimed to investigate the nurses’perspectives on open family visitation and its barriers and facilitators in neonatal intensive care units(NICUs).Methods:This is a descriptive,cross-sectional study.A total of 113 nurses employed in 3 main NICUs of Tabriz participated in the study through the census sampling ***’perspectives on open visitation and its facilitators and barriers were assessed and analyzed using the Beliefs and Attitudes toward Visitation in NICU Questionnaire(BAVNIQ)and descriptive and analytical statistics,***:Approximately 74%of the nurses who participating in the study had a moderate perspective on open *** the nurses’viewpoint,“Parents’low awareness of sensitivity and hygienic principles of the NICU”was the first(90.3%)barrier,and the 2 factors,namely,“physical structure of the ward/lack of sufficient space”and“far distance between family’s residence and the hospital/having another child,”were the second(86.8%)barrier with an equal *** the facilitating factors,“Supporting employed parents during the neonate’s hospitalization”and“providing facilities for family accommodation in the hospital”were the first(82.3%)and the second(79.6%)facilitators,respectively,for open ***:The majority of NICU nurses had a moderate perspective on the family open *** reluctance seems to be originated mainly from the factors inhibiting open visitation,making its implementation challenging for *** perspective of the frontline staff in caring for vulnerable infants on facilitators and barriers to open visitation may help policymakers,managers,and relevant officials in decision-making and implementing new visiting policies in the NICUs.

关键词： barriers facilitators NICU nurse open visitation

Canopy cover or remotely sensed vegetation index,explanatory variables of above-ground biomass in an arid rangeland,Iran

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Journal of Arid Land 2018年第5期10卷 767-780页

作者： fatemeh PORDEL Ataollah EBRAHIMI Zahra AZIZI Department of Range and Watershed Management Shahrekord University Department of RS-GIS Science and Research Branch Islamic Azad University

Estimation of above-ground biomass is vital for understanding ecological processes. Since direct measurement of above-ground biomass is destructive, time consuming and labor intensive, canopy cover can be considered as a predictor if a significant correlation between the two variables exists. In this study, relationship between canopy cover and above-ground biomass was investigated by a general linear regression model. To do so, canopy cover and above-ground biomass were measured at 5 sub-life forms（defined as life forms grouped in the same height classes） using 380 quadrats, which is systematic-randomly laid out along a 10-km transect, during four sampling periods（May, June, August, and September） in an arid rangeland of Marjan, Iran. To reveal whether obtained canopy cover and above-ground biomass of different sampling periods can be lumped together or not, we applied a general linear model（GLM）. In this model, above-ground biomass was considered as a dependent or response variable, canopy cover as an independent covariate or predictor factor and sub-life forms as well as sampling periods as fixed factors. Moreover, we compared the estimated above-ground biomass derived from remotely sensed images of Landsat-8 using NDVI（normalized difference vegetation index）, after finding the best regression line between predictor（measured canopy cover in the field） and response variable（above-ground biomass） to test the robustness of the induced model. Results show that above-ground biomass（response variable） of all vegetative forms and periods can be accurately predicted by canopy cover（predictor）, although sub-life forms and sampling periods significantly affect the results. The best regression fit was found for short forbs in September and shrubs in May, June and August with R^2 values of 0.96, 0.93 and 0.91, respectively, whilst the least significant was found for short grasses in June, tall grasses in August and tall forbs in June with R^2 values of 0.71, 0.73 and 0.75, r

关键词： rangeland biomass non-destructive method arid ecosystems NDVI

Evaluation on Properties of CaO-BaO-B_2O_3-Al_2O_3-SiO_2 Glass-Ceramic Sealants for Intermediate Temperature Solid Oxide Fuel Cells

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Journal of Materials Science & Technology 2013年第1期29卷 49-54页

作者： fatemeh Heydari Amir Maghsoudipour Zohreh Hamnabard Sajad Farhangdoust Ceramic Division Material and Energy Research Center Ceramic Group Materials Research School

To develop suitable sealants for intermediate temperature solid oxide fuel cells （IT-SOFC）, glass-ceramics based on the CaO-BaO-B203-AI203-Si02 system were studied. Coefficient of thermal expansion （CTE）, glass transition temperature （Tg） and dilatometric softening point temperature （Td） of specimens were determined by means of dilatometer analysis and crystallization temperature was measured by differential thermal analysis （DTA）. Also, crystallization behavior during prolonged heat-treatment and microstructure properties were studied by means of X-ray diffraction （XRD） and scanning electron microscopy （SEM）, respectively. Electrical properties were measured at different temperatures, and the results showed a high resistance （〉104 Ω） at the SOFC operation temperature （600-800 ℃）. Moreover, mechanical properties of heat-treated specimens （1, 10, 30, 50 h） were measured, Microstructure investigation revealed a well-adhered bonding between the sealant glass-ceramic electrolyte and glass.

关键词： Glass Solid oxide fuel cells (SOFC) Thermal expansion Mechanical properties Electrical properties

Efficacy and safety of Hemoheal cream in patients with hemorrhoids:a randomized double-blind placebo controlled clinical trial

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Journal of Traditional Chinese Medicine 2021年第2期41卷 301-307页

作者： Mehdi Zobeiri fatemeh Parvizi Roja Rahimi fatemeh Heydarpour Hamid Reza Sheikhan Jafar Navabi Mohammad Hosein Farzaei Internal Medicine Department Imam Reza HospitalKermanshah University of Medical SciencesKermanshah ***Iran Pharmaceutical Sciences Research Center Kermanshah University of Medical SciencesKermanshah ***Iran Department of Traditional Pharmacy School of Persian MedicineTehran University of Medical SciencesTehran ***Iran Medical Biology Research Center Health Technology InstituteKermanshah University of Medical SciencesKermanshah ***Iran Clinical Research Development Center Imam Khomeini Hospital and Department of Internal MedicineKermanshah University of Medical SciencesKermanshah ***Iran Medical Technology Research Center Health Technology InstituteKermanshah University of Medical SciencesKermanshah ***Iran

OBJECTIVE:To evaluate the efficacy and safety of Hemoheal cream,an anti-hemorrhoid herbal preparation,(inspired by Persian medicine literatures in a double-blind,randomized placebo-controlled ***:Hemoheal cream consists of aqueous extract of Allium ampeloprasum L.,Commiphora mukul(*** Stocks)Engl and the oil of Sesamum indicum ***-two patients with symptomatic hemorrhoids were randomized to receive hemoheal cream or placebo for 3 *** patients were evaluated before and after the intervention in terms of the severity of anal irritation,bleeding,anal itching,pain,defecation discomfort and swelling sense,and overall subjective improvement(%),as well as any reported adverse ***:The results showed that after 3 weeks of treatment,distribution of anal irritation,bleeding,pain as well as swelling sense were significantly different(P0.05).Furthermore,a significant difference was observed between the overall subjective improvement of Hemoheal cream and placebo groups(P=0.012).One patient in the treatment group complained of rashes on the application ***:The present study showed a positive effect of Hemoheal cream in improving clinical signs and symptoms in patients with hemorrhoids.

关键词： Hemorrhoids Allium Commiphora Sesamum Medicine,Iranain traditional Controlled clinical trial

Magnetic and Heat Resistant Poly(imide-ether) Nanocomposites Derived from Methyl Rich 9H-xanthene: Synthesis and Characterization

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Chinese Journal of Polymer Science 2018年第7期36卷 822-834页

作者： Khalil Faghihi Hassan Moghanian fatemeh Mozafari Meisam Shabanian Organic Polymer Chemistry Research Laboratory Department of Chemistry Faculty of Science Arak University Department of Chemistry Dezful Branch Islamic Azad University Faculty of Chemistry and Petrochemical Engineering Standard Research Institute (SRI)

In this study a new series of magnetic and heat resistant nanocomposites were prepared based on a highly soluble poly（imideether）（PIE） reinforced with two different types of magnetic nanoparticles via a solution intercalation technique. New PIE with good solubility and desired molar mass containing bulky xanthene rings and amide groups in the side chains was synthesized via thermal cyclization of the poly（amic acid） precursor, obtained from the reaction of a new diamine derived from 9H-xanthene and 4,4＇- oxydiphthalic dianhydride （ODPA）. Improved solubility was attributed to the presence of xanthene group and flexible ether linkage in the polyimide backbones that reduce the chain-chain interaction and enhance solubility by penetrating solvent molecules into the polyimide chains. Fe3O4 nanoparticles （MNPs） which synthesized from chemical co-precipitation route were coated with silica （SiO2）, sequentially with （3-aminopropyl）triethoxysilane and poly-melamine-terephthaldehyde （MNPs-PMT）, and then separately dispersed in the poly（amic acid） solutions and thermally imidized to form PIE/Fe3O4 and PIE/MNPs-PMT nanocomposites. The nanostructures and properties of the resultant materials were investigated using FTIR spectroscopy, X-ray diffraction （XRD）, field emission scanning electron microscopy （FE-SEM）, transmission electron microscopy （TEM）, vibrating sample magnetometer （VSM）, thermal gravimetric analysis （TGA） and differential scanning calorimetry （DSC）. The properties of the nanocomposites were strongly related to the dispersion and interaction between the nanoparticles and PIE matrix. The thermogravimetric analysis （TGA） results showed that the addition of MNPs-PMT nanoparticles resulted in a substantial increase in the thermal stability of the corresponding PIEN. The temperature at 10% weight loss （T10） was increased from 416℃to 428℃ for PIEN containing 3 wt% MNPs-PMT as compared to neat PIE, as well the char yield enhanced. Furthermore, the MNPs-PMT nanoparticles

关键词： Poly(imide-ether) Nanocomposite 9H-xanthene Magnetic nanoparticles

Nano-TiO_2:An eco-friendly alternative for the synthesis of quinoxalines

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Chinese Chemical Letters 2011年第6期22卷 753-756页

作者： Bi Bi fatemeh Mirjalili Ali Akbari Department of Chemistry College of Science Yazd University

Nano-TiO_2 as an eco-friendly and efficient nanocatalyst was applied for quinoxaline preparation with improved *** this protocol,diketones and 1,2-diamines were condensed in the presence of catalyst at room temperature.

关键词： Nano-TiO_2 Quinoxalines 1 2-Diketones 1 2-Diamines

Therapeutic potential of Zataria multiflora:A narrative review of current evidence

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Asian Pacific Journal of Tropical Biomedicine 2023年第11期13卷 451-459页

作者： Reza Nosratabadi fatemeh Anaeigoudari Akbar Anaeigoudari Department of Medical Immunology Afzalipour Faculty of MedicineKerman University of Medical SciencesKermanIran Student Research Committee Afzalipour Faculty of MedicineKerman University of Medical SciencesKermanIran Student Research Committee Jiroft University of Medical SciencesJiroftIran Department of Physiology School of MedicineJiroft University of Medical SciencesJiroftIran

Zataria multiflora Boiss is a perennial plant with a wide spectrum of biological and pharmacological activities including antidiabetic,antinociceptive,anti-asthmatic,anti-fever,anti-spastic,anti-oxidative,anti-inflammatory,and antimicrobial *** paper reviews the therapeutic effects of Zataria multiflora based on recent *** relevant reports were extracted by checking the electronic databases including PubMed,Scopus,Web of Science,and Google Scholar from the beginning of 2010 until the end of May *** neuroprotective effects of Zataria multiflora can be attributed to inhibition of acetylcholinesterase,enhancement of brain-derived neurotrophic factor,and alleviation of brain oxidative *** multiflora also exerts its protective effects on the respiratory system,liver,and kidney by reducing the level of inflammatory cytokines,scavenging the free radicals,and augmenting the antioxidant ***,Zataria multiflora accelerates wound healing via upregulating transforming growth factor-β,insulin-like growth factor 1,fibroblast growth factor 2,and vascular endothelial growth factor,and inducing angiogenesis and collagen ***,the protective impacts of Zataria multiflora on different organs are mainly attributed to its antioxidant and antiinflammatory properties.

关键词： Zataria multiflora Anti-inflammmatory Antioxidative Neuroprotective Organs

Electrooxidation of hydroquinone on simply prepared Au-Pt bimetallic nanoparticles

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Science China Chemistry 2013年第6期56卷 746-754页

作者： ETESAMI Mohammad KAROONIAN fatemeh Salehi MOHAMED Norita School of Chemical Sciences Universiti Sains Malaysia (USM)

A facile method was used to prepare gold-platinum （Au-Pt） catalysts by direct electrodeposition via cyclic voltammetry in an acidic medium. Various parameters that affect the properties of electrodeposited catalysts were investigated such as initial ap- plied potential, scan rate and deposition time. Initial applied potential plays a more important role in the preparation of bime- tallic nanoparticles （AuPtNPs） since the kinetics of electrodeposition is in competition with the rate of hydrogen evolution. The AuPtNPs electrodeposited on pencil graphite （PG） were used to study the electrooxidation of hydroquinone. Various parame- ters such as pH, scan rate, concentration of hydroquinone and temperature were studied in the electrooxidation process. Ap- parent activation energy （Ea） for the electrooxidation of hydroquinone, calculated from the Arrhenius plot, shows that AuPtNPs catalysts （electrodeposited on the PG） offer less activation energy （ca. 9.500 kJ mo1-1） than the bare PG （ca. 10.345 kJ mol-1）. The AuPtNPs/PG shows better catalytic performance than the PG electrode due to the greater surface area it provides, thus re- sulting in more active sites available for adsorption of hydroquinone molecules on the surface of the catalyst.

关键词： bimetallic catalyst nanoparticles electrooxidation hydroquinone