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RISS 인기검색어
- 검색키워드
- 저자 : Mehdi Rezapour (검색결과 6 건)
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Zamani, Farzad,Rezapour, Mehdi,Kianpour, Sahar Korean Chemical Society 2013 Bulletin of the Korean Chemical Society Vol.34 No.8
Lysine (Lys) immobilized on zeolite 4A was prepared by a simple adsorption method. The physical and chemical properties of Lys/zeolite 4A were investigated by X-ray diffraction (XRD), FT-IR, Brunauer-Emmett-Teller (BET), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and UV-vis. The obtained organic-inorganic composite was effectively employed as a heterogeneous basic catalyst for synthesis of ${\alpha},{\beta}$-unsaturated carbonyl compounds. No by-product formation, high yields, short reaction times, mild reaction conditions, operational simplicity with reusability of the catalyst are the salient features of the present catalyst.
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Farzad Zamani,Mehdi Rezapour,Sahar Kianpour 대한화학회 2013 Bulletin of the Korean Chemical Society Vol.34 No.8
Lysine (Lys) immobilized on zeolite 4A was prepared by a simple adsorption method. The physical and chemical properties of Lys/zeolite 4A were investigated by X-ray diffraction (XRD), FT-IR, Brunauer- Emmett-Teller (BET), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and UV-vis. The obtained organic-inorganic composite was effectively employed as a heterogeneous basic catalyst for synthesis of α,β-unsaturated carbonyl compounds. No by-product formation, high yields, short reaction times, mild reaction conditions, operational simplicity with reusability of the catalyst are the salient features of the present catalyst.
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Patterns of Health-related Quality of Life in Men Who Inject Drugs: A Survey in Southeast Iran
Nojomi Marzieh,Rezapour Maysam,Azar Neda Soleimanvandi,Darabi Mehdi,Asadi-Aliabadi Mehran 대한예방의학회 2024 예방의학회지 Vol.57 No.2
Objectives: Understanding patterns of quality of life in people who inject drugs (PWID) can help healthcare providers plan and manage their health problems in a more focused manner. Therefore, the current study aimed to identify patterns of health-related quality of life in PWID in southeast Iran.Methods: This cross-sectional study was conducted in southeast Iran on men who had injected drugs at least once during the last year. We used convenience sampling in 2 drop-in centers and venue-based sampling at 85 venues. Demographic characteristics, high-risk behaviors, and health-related quality of life were evaluated using the 5-level EQ-5D version (EQ-5D-5L) questionnaire. Latent profile analysis was used to identify patterns of quality of life.Results: This study enrolled 398 PWID, who had a mean age of 34.1±11.4 years. About 47.9% reported a prison history in the last 10 years, 59.2% had injected drugs in the last month, and 31.6% had a history of sharing syringes. About 46.3% reported having 2 or more sexual partners in the last 6 months, and 14.7% had a history of sex with men. Out of the 5 EQ-5D-5L profiles, the fifth profile had the most people (36.6%). Most variations in quality of life were related to pain and discomfort.Conclusions: We showed that the pain and discomfort dimension of EQ-5D-5L had more variation in PWID. This finding will be useful for allocating appropriate interventions and resources to promote health-related quality of life in this population.
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Hesami Hanieh,Borji Mehdi,Rezapour Javad 한국화학공학회 2021 Korean Journal of Chemical Engineering Vol.38 No.12
Nowadays SOFCs have received great attention due to its advantages such as; high efficiency, low emission and fuel flexibility. But its high operating temperature entails thermal stresses and gas sealing problems which intrigues researchers to reduce the working temperature via thermal management, improved fluid flow, and proper interconnect and channel design. In this study, a three-dimensional model of a co - flow internal reforming planar anode - supported solid oxide fuel cell has been developed. The simulation results are discussed to investigate the performance of different kinds of SOFC flow passages with rectangular, trapezoidal and triangular channels. Also in this study, the effect of inlet fuel and air velocity on the cell performance of the different interconnect ducts is investigated. The results showed that the effect of channel geometry at high voltages is small while, at low voltages channel geometry has an important effect on cell performance. By increasing inlet fuel velocity and decreasing inlet air velocity for all channel geometries, the current and power density and temperature difference increase. Also it was found that, the cells with rectangular channels have better performance than the cells with trapezoidal and triangular channels.
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Ganjali, Mohammad Reza,Zamani, Hassan Ali,Norouzi, Parviz,Adib, Mehdi,Rezapour, Morteza,Aceedy, Mohammad Korean Chemical Society 2005 Bulletin of the Korean Chemical Society Vol.26 No.4
The 3-[(2-furylmethylene)amino]-2-thioxo-1,3-thiazolidin-4-one (FTT) was used as an excellent ionophore in construction of a $Zn^{2+}$ PVC-based membrane sensor. The best performance was obtained with a membrane composition of 30% poly(vinyl chloride), 62% nitrobenzen (NB), 3% FTT and 5% sodium tetraphenyl borate (TBP). This membrane sensor shows very good selectivity and sensitivity towards $Zn^{2+}$ over a wide variety of cations, including alkali, alkaline earth, transition and heavy metal ions. The membrane sensor revealed a great enhancement in selectivity coefficients for $Zn^{2+}$ ions, in comparison to the previously reported $Zn^{2+}$ membrane sensors. Theoretical studies also showed the selective interaction of TFF and $Zn^{2+}$ ions. The proposed membrane sensor exhibits a Nernstian behavior (with slope of 29.3 ${\pm}$ 0.3 mV per decade) over a wide concentration range (1.0 ${\times}$ $10^{-6}$-1.0 ${\times}$ $10^{-2}$) with a detection limit of 8.5 ${\times}$ $10^{-7}$ M (52 ng mL$^{-1}$). It shows relatively fast response time, in the whole concentration range ($\lt$ 20 s), and can be used for at least 10 weeks in a pH range of 3.0-7.0. The proposed membrane sensor was successfully used in direct determination of $Zn^{2+}$ ions in wastewater of industrial zinc electroplating companies, and also as an indicator electrode in titration with EDTA.
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Zn2+ PVC-based Membrane Sensor Based on 3-[(2-Furylmethylene)amino]-2-thioxo-1,3-thiazolidin-4-one
Mohammad Reza Ganjali*,Hassan Ali Zamani,Parviz Norouzi,Mehdi Adib,Morteza Rezapour,Mohammad Aceedy 대한화학회 2005 Bulletin of the Korean Chemical Society Vol.26 No.4
The 3-[(2-furylmethylene)amino]-2-thioxo-1,3-thiazolidin-4-one (FTT) was used as an excellent ionophore in construction of a Zn2+ PVC-based membrane sensor. The best performance was obtained with a membrane composition of 30% poly(vinyl chloride), 62% nitrobenzen (NB), 3% FTT and 5% sodium tetraphenyl borate (TBP). This membrane sensor shows very good selectivity and sensitivity towards Zn2+ over a wide variety of cations, including alkali, alkaline earth, transition and heavy metal ions. The membrane sensor revealed a great enhancement in selectivity coefficients for Zn2+ ions, in comparison to the previously reported Zn2+ membrane sensors. Theoretical studies also showed the selective interaction of TFF and Zn2+ ions. The proposed membrane sensor exhibits a Nernstian behavior (with slope of 29.3 ± 0.3 mV per decade) over a wide concentration range (1.0´106-1.0´102) with a detection limit of 8.5´107 M (52 ng mL1). It shows relatively fast response time, in the whole concentration range (< 20 s), and can be used for at least 10 weeks in a pH range of 3.0-7.0. The proposed membrane sensor was successfully used in direct determination of Zn2+ ions in wastewater of industrial zinc electroplating companies, and also as an indicator electrode in titration with EDTA.
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