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Epidemiology and Clinical Features of Atopic Dermatitis in Kerman, a Desert Area of Iran
( Saeedeh Farajzadeh ),( Iraj Esfandiarpour ),( Maryam Sedaghatmanesh ),( Mahdieh Saviz ) 대한피부과학회 2014 Annals of Dermatology Vol.26 No.1
Background: Epidemiologic studies of atopic dermatitis (AD) in desert areas are still lacking. Objective: The aim of this study was to investigate the epidemiology of AD in children in Kerman city, a desert area in Iran. Methods: We evaluated preschool children (age, 2 to 7 years) and primary school students (age, greater than 7 up to 12 years) in Kerman. We selected 865 students to estimate the prevalence and assess other features of AD such as distribution of lesions, personal history, family history of atopy, aggravating factors, associated symptoms, and morphological variants. Results: The prevalence of AD was 9.1% in our study population. The prevalence of AD was 9.17% and 9.09% in males and females, respectively. The prevalence of AD in the age range of 2 to 7 years was 13.53% and 8.33% among children aged greater than 7 up to 12 years. In total, 82.27% of the patients were in chronic stage of the disease, and 31.6% had a personal history of other atopic diseases. At least one first-degree family member with atopy was seen in 46.83% of the patients. The most common sites of involvement were the head and neck. The most involved areas in the limbs were extensor surfaces. The most frequent morphological variant of AD was the common type. Conclusion: The prevalence of AD in Kerman was higher than in other Iranian cities but lower than that in developed countries. Diversity in the clinical features of AD has been observed among different studies, and the diagnostic criteria of AD should be adapted in proportion to the studied area. (Ann Dermatol 26(1) 26∼ 34, 2014)
Mir Ali Farajzadeh,Adeleh Yadeghari 한국공업화학회 2018 Journal of Industrial and Engineering Chemistry Vol.59 No.-
A new version of DSPE in a narrow-bore tube followed by HPLC-DAD was proposed for the analysis of Ni2+, Cd2+, Co2+, and Pb2+ cations. 2-Propanol is mixed with C18 sorbent and used for dispersing the sorbent into solution containing the cations oxinate complexes. The sorbent passes through the solution in a short time versus passing the solution from the cartridge which is done in the conventional SPE in a long time. In comparison to SPE, the active surface area is larger because of preventing sorbent clogging. EFs and LODs were obtained in the ranges of 831–1073 and 0.05–0.40 μg L−1, respectively.
Mohammad Chahardowli,Rouhi Farajzadeh,Hans Bruining 한국공업화학회 2016 Journal of Industrial and Engineering Chemistry Vol.38 No.-
Injection of dimethyl ether (DME) dissolved in water can enhance the recovery efficiency with respect towater flooding. In this Shell Proprietary Technology, DME partitions from water into the oil; decreases oilviscosity and increases its volume, and mobilizes the trapped oil again. In this work, DME-enhancedwater flooding is combined with polymer and considered for cases in which a favorable mobility controlbetween water and oil does not exist. In order to reduce the remaining oil, slugs of the mixed solution ofDME and polymer were injected into the cores containing oil and then followed by injection of a chasefluid. This recovery method benefits both (a) from the presence of polymer, and the oil viscosityreduction caused by DME dissolution and (b) from oil swelling due to DME dissolution. It appears fromexperimental data that the injectivity of a DME/polymer (DMEP) solution is higher than the injectivity ofa polymer solution without DME; this indicates the presence of DME can reduce the viscosifying effect ofthe polymer. The main experimental observations are: (1) a higher oil recovery is obtained fromcontinuous DMEP flooding than from continuous DME–brine flooding, (2) the presence of polymer in theDME slug and in the chase phase reduced the remaining oil after a finite slug injection, and (3) a largerDME slug and mobility control of the chase phase can improve the oil recovery after a finite sluginjection. In summary, the experiments show that combining polymer and DME improves the ultimaterecovery significantly and shortens the duration of oil production.
A 2-D simulation study on CO2 soluble surfactant for foam enhanced oil recovery
Yongchao Zeng,Rouhi Farajzadeh,Sibani L. Biswal,George J. Hirasaki 한국공업화학회 2019 Journal of Industrial and Engineering Chemistry Vol.72 No.-
This paper probes the transport of CO2 soluble surfactant for foaming in porous media. We numericallyinvestigate the effect of surfactant partitioning between the aqueous phase and the gaseous phase onfoam transport for subsurface applications when the surfactant is injected in the CO2 phase. A 2-Dreservoir simulation is developed to quantify the effect of surfactant partition coefficient on thedisplacement conformance and CO2 sweep efficiency. A texture-implicit local-equilibrium foam model isembedded to describe how the partitioning of surfactant between water and CO2 affects the CO2 foammobility control when surfactant is injected in the CO2 phase. We conclude that when surfactant hasapproximately equal affinity to both the CO2 and the water, the transport of surfactant is in line with thegas propagation and therefore the sweep efficiency is maximized. Too high affinity to water (smallpartition coefficient) results in surfactant retardation whereas too high affinity to CO2 (large partitioncoefficient) leads to weak foam and insufficient mobility reduction. This work sheds light upon the designof water-alternating-gas-plus-surfactant-in-gas (WAG + S) process to improve the conventional foamprocess with surfactant-alternating-gas (SAG) injection mode during which significant amount ofsurfactant could possibly drain down by gravity before CO2 slugs catch up to generate foam in situ thereservoir.
Maryam Hakimi Parizi,Saeedeh Farajzadeh,Iraj Sharifi,Abbas Pardakhty,Mohammad Hossein Daie Parizi,Hamid Sharifi,Ehsan Salarkia,Saeid Hassanzadeh 대한기생충학ㆍ열대의학회 2019 The Korean Journal of Parasitology Vol.57 No.4
In this study, we carried out extensive in vitro studies on various concentrations of tioxolone along with ben- zoxonium chloride and their niosomal forms against Leishmania tropica. Niosomes were prepared by the hydration meth- od and were evaluated for morphology, size, release study, and encapsulation efficiency. This study measured leishmani- cidal activity against promastigote and amastigote, apoptosis and gene expression levels of free solution and niosomal- encapsulated tioxolone along with benzoxonium chloride. Span/Tween 60 niosome had good physical stability and high encapsulation efficiency (more than 97%). The release profile of the entrapped compound showed that a gradual release rate. The combination of niosomal forms on promastigote and amastigote were more effective than glucantime. Also, the niosomal form of this compound was significantly less toxic than glucantime (P ≤ 0.05). The flowcytometric analysis on niosomal form of drugs showed that higher number of early apoptotic event as the principal mode of action (89.13% in 200 μg/mL). Also, the niosomal compound increased the expression level of IL-12 and metacaspase genes and de- creased the expression level of the IL-10 gene, which further confirming the immunomodulatory role as the mechanism of action. We observed the synergistic effects of these 2 drugs that induced the apoptotic pathways and also up regulation of an immunomodulatory role against as the main mode of action. Also, niosomal form of this combination was safe and demonstrated strong anti-leishmaniasis effects highlights further therapeutic approaches against anthroponotic cutane- ous leishmaniasis in future planning.
Ali Khodam,Mohammad Saeid Farajzadeh,Mohsenali Shayanfar 국제구조공학회 2023 Structural Engineering and Mechanics, An Int'l Jou Vol.85 No.3
Reliability-Based Design Optimization (RBDO) is an appropriate framework for obtaining optimal designs by taking uncertainties into account. Large-scale problems with implicit limit state functions and problems with discrete design variables are two significant challenges to traditional RBDO methods. To overcome these challenges, this paper proposes a hybrid method to perform RBDO of structures that links Firefly Algorithm (FA) as an optimization tool to advanced (finite element) reliability methods. Furthermore, the Genetic Algorithm (GA) and the FA are compared based on the design cost (objective function) they achieve. In the proposed method, Weighted Simulation Method (WSM) is utilized to assess reliability constraints in the RBDO problems with explicit limit state functions. WSM is selected to reduce computational costs. To performing RBDO of structures with finite element modeling and implicit limit state functions, a First-Order Reliability Method (FORM) based on the Direct Differentiation Method (DDM) is utilized. Four numerical examples are considered to assess the effectiveness of the proposed method. The findings illustrate that the proposed RBDO method is applicable and efficient for RBDO problems with discrete and continuous design variables and finite element modeling.
FIXED POINT THEORY FOR INWARD SET VALUED MAPS IN HYPERCONVEX METRIC SPACES
Amini-Harandi, A.,Farajzadeh, A.P.,O'Regan, D.,Agarwal, R.P. The Youngnam Mathematical Society Korea 2008 East Asian mathematical journal Vol.24 No.4
In this paper, we first introduce inwards set valued maps in hyperconvex metric spaces. Then we present fixed point theory for continuous condensing inward set valued maps.
A Novel Niosomal Combination of Selenium Coupled with Glucantime against Leishmania tropica
Mahshid Mostafavi,Payam Khazaeli,Iraj Sharifi,Saeedeh Farajzadeh,Hamid Sharifi,Alireza Keyhani,Maryam Hakimi Parizi,Sina Kakooei 대한기생충학ㆍ열대의학회 2019 The Korean Journal of Parasitology Vol.57 No.1
There is no effective treatment modality available against different forms of leishmaniasis. Therefore, the aim of this study was to improve the penetration and efficacy of selenium and glucantime coupled with niosomes and compared them with their simple forms alone on in vitro susceptibility assays. In this study, the niosomal formulations of selenium and in combination with glucantime were prepared. The size and morphology of the niosomal formulations were charac- terized and the effectivity of the new formulation was also evaluated using in vitro MTT assay, intra-macrophage model, and gene expression profile. From the results obtained, no cytotoxicity effect was observed for niosomal and simple forms of drugs, as alone or in combination. Niosomal formulations of the drugs significantly showed more inhibitory ef- fects (P ≤ 0.001) than the simple drugs when the selectivity index was considered. The gene expression levels of Interleu- kin (IL-10) significantly decreased, while the level of IL-12 and metacaspase significantly increased (P ≤ 0.001). The results of the present study showed that selenium plus glucantime niosome possess a potent anti-leishmanial effect and en- hanced their lethal activity as evidenced by the in vitro experiments.
Fixed point theory for inward set valued maps in hyperconvex metric spaces
A. Amini-Harandi,,A. P. Farajzadeh,D. O’Regan,R. P. Agarwal 영남수학회 2008 East Asian mathematical journal Vol.24 No.4
In this paper, we first introduce inwards set valued maps in hyperconvex metric spaces. Then we present fixed point theory for continuous condensing inward set valued maps.