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Ultrasound-assistant preparation of Cu-SAPO-34 nanocatalyst for selective catalytic reduction of NO by NH_3

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Journal of Environmental Sciences 2015年第9期27卷 135-143页

作者： Parvaneh Nakhostin Panahi ali Niaei Darush Salari Seyed Mahdi Mousavi Gérard Delahay Department of Chemistry Faculty of Science University of Zanjan Department of Chemical Engineering & Petroleum University of Tabriz Department of Applied Chemistry Faculty of Chemistry University of Tabriz Faculty of Chemistry University of Kashan Institut Charles Gerhardt UMR 5253 CNRS/UM2/ENSCM/UM1 Equipe"Matériaux Avancés pour la Catalyse et la Santé"Ecole Nationale Supérieure de Chimie de Montpellier 8 rue de l'Ecole Normale34296 Montpellier cedex France

The influence of the various preparation methods of Cu-SAPO-34 nanocatalysts on the selective catalytic reduction of NO with NH3 under excess oxygen was studied. Cu-SAPO-34 nanocatalysts were prepared by using four techniques： conventional impregnation（IM）,ultrasound-enhanced impregnation（UIM）, conventional deposition precipitation（DP） using Na OH and homogeneous deposition precipitation（HDP） using urea. These catalysts were characterized in detail by various techniques such as N2-sorption, XRD, TEM, H2-TPR,NH3-TPD and XPS to understand the catalyst structure, the nature and the dispersed state of the copper species, and the acid sites for NH3 adsorption. All of the nanocatalysts showed high activities for NO removal. However, the activities were different and followed the sequence of Cu-SAPO-34（UIM）〉 Cu-SAPO-34（HDP）〉 Cu-SAPO-34（IM）〉 Cu-SAPO-34（DP）.Based on the obtained results, it was concluded that the NO conversion on Cu-SAPO-34 nanocatalysts was mainly related to the high reducibility of the isolated Cu^2＋ions and Cu O species, the number of the acid sites and the dispersion of Cu O species on SAPO-34.

关键词： NO NH3-SCR Cu-SAPO-34 Ultrasonic impregnation

Hypolipidemic effect of coffee silver skin in rats fed a high-fat diet

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Food Science and Human Wellness 2018年第4期7卷 252-259页

作者： Ayman Mohammed El-Anany Rehab Farouk M.ali Department of Special Food and Nutrition Researches Food Technology Research InstituteAgricultural Research CenterGizaEgypt Biochemistry Department Faculty of AgricultureCairo UniversityGizaEgypt Department of Food Science and Human Nutrition College of Agriculture and Veterinary MedicineAl-Qassum UniversityQassimSaudi Arab

The present study was conducted to evaluate the hypolipidemic effects of coffee silver skin(CSS)supplementation in rats fed a highfat diet(HFD).A total of 40 albino rats were used in the present *** groups were as follows:Rats fed a normal diet,N group;high fat diet,HFD group;high fat diet+10%CSS,HFD 10;HFD+15%CSS,HFD 15;HFD+20%CSS,HFD 20;the diets were followed for 8 *** samples were collected at the end of the *** the time of sacrifice,the weights of heart,liver,kidneys,epididymal fat and retroperitoneal fat of the experimental rats with respect to body weight were *** lipid parameter of the serum was recorded and liver and kidney function tests were ***,a histopathological assay was performed on the liver and kidney tissues of the rats fed the tested *** weight gain of the rats fed a HFD supplemented with 10,15 and 20%CSS was∼1.05,1.08 and 1.12 times lower than that of those rats fed HFD,*** incorporation of CSS at a level of 20%reduced the increase in liver,kidney,epididymal fat and retroperitoneal fat weight by 17.84,19.38,47.23 and 18.00%,respectively,compared with HFD *** administration induced considerable increases in alanine aminotransferase,aspartate aminotransferase and alkaline phosphatase activities compared with the control *** results also indicated that the HFD-fed rats exhibited increased levels of urea,uric acid and creatinine,by∼26.38,8.40 and 6.75%,respectively,compared with the control *** the exception of high-density lipoprotein cholesterol,all lipid fractions increased significantly in rats fed a *** administration of a HFD induced marked pathological changes in the liver and kidneys of the ***,the incorporation of various levels of CSS in to a HFD reduced these *** results of the present study illustrate that the incorporation of CSS into HFDs reduces the hyperlipidemia effect of these diets.

关键词： Hypolipidemic Coffee Fiber Biochemical Serum lipid

Parametric Study on the Effects of Pile Inclination Angle on the Response of Batter Piles in Offshore Jacket Platforms

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Journal of Marine Science and Application 2016年第2期15卷 193-200页

作者： ali Aminfar Hamid ahmadi Mohammad Hossein Aminfar Department of Civil Engineering Tabriz Branch Islamic Azad University Pasdaran Highway Tabriz *** Iran Faculty of Civil Engineering University of Tabriz 29 Bahman Blvd. Tabriz *** Iran

近海夹克衫类型平台被纳入海床由长击打堆积。在这份报纸，源于有限元素分析，对试验性的数据验证了，被用来学习堆积倾斜角度的效果，并且它和堆积的几何性质和支持夹克衫平台的使倾向的堆积的行为上的包围土壤的 geotechnical 特征的... 详细信息

近海夹克衫类型平台被纳入海床由长击打堆积。在这份报纸，源于有限元素分析，对试验性的数据验证了，被用来学习堆积倾斜角度的效果，并且它和堆积的几何性质和支持夹克衫平台的使倾向的堆积的行为上的包围土壤的 geotechnical 特征的相互作用。结果证明倾斜角度是影响行为的主要参数之一一近海堆积。我们在垂直方向在最大的 von 协定压力，最大的 von 协定有弹性的紧张，最大的排水量向量和，在水平方向的最大的排水量，和最大的排水量上调查了倾斜角度的效果。堆积似乎有约 5 的倾斜的操作上最佳的度为一个 NACA6409 翅膀的力量，速度，和排水量解决在一 40，和 20 ?

关键词：导管架式斜桩海上倾角倾斜角度最大位移岩土工程性质粘性土壤

Experimental study of ultrasonic atomizer effects on values of EC and pH of nutrient solution

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International Journal of Agricultural and Biological Engineering 2018年第5期11卷 59-64页

作者： Imran ali Lakhiar Xingda Liu Guanqun Wang Jianmin Gao School of Agricultural Equipment Engineering Jiangsu UniversityZhenjiang 212013JiangsuChina

The objectives of this research were to reveal how main working parameters of ultrasonic atomizers would influence key properties of the atomized nutrient solution in an aeroponics *** Yamazaki tomato nutrient solution was selected as a nutrient *** design(UD)method U_(12)(12^(2)×13)was adopted to arrange the *** this test,spraying time and interval time were taken as quantitative factors with 12 levels(10,20,30,40,50,60,70,80,90,100,110,and 120 min,respectively),and ultrasonic atomizer frequency was taken as qualitative factor with 3 conditions(28 kHz,107 kHz,1.7 MHz).Based on test data,two regression formulations used to predict the values ofΔEC,andΔpH of atomized Yamazaki tomato nutrient solution was established and *** spraying interval time of ultrasonic atomizers had no significant effect on EC and pH of the atomized Yamazaki tomato nutrient solution;the ultrasonic atomizer frequency was more effective than spraying time on the values of EC and pH;the values of EC and pH became maximum at(f_(3),T_(1))=(1.7 MHz,120 min)and minimum at(f_(1),T_(1))=(28 kHz,10 min).It was concluded that the effect of high-frequency(1.7 MHz)ultrasonic atomizer on EC and pH of the Yamazaki tomato nutrient solution was beyond the standard value for tomato ***,the high-frequency(1.7 MHz)ultrasonic atomizer is not suitable for aeroponics cultivation when using the Yamazaki tomato nutrient solution as aeroponics nutrient solution.

关键词： aeroponics tomato nutrient solution EC pH ultrasonic atomizer frequency spray time interval time uniform design

钒掺杂的钛酸钠纳米管作为多相催化剂用于室温下硫化物的氧化（英文）

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Chinese Journal of Catalysis 2016年第4期37卷 494-501页

作者： Mohammad ali Dadvar Razieh Fazaeli 伊斯兰自由大学戈姆分部化学系伊朗86145311

合成了一种含有TiO_2,Na和V的多相纳米管催化剂,采用红外光谱、X射线衍射、扫描电镜、透射电镜和N_2吸附-脱附法对该催化剂的结构和织构性质进行了表征,并用于水中30%H_2O_2选择性氧化硫化物制备对应的亚砜.该法具有产率极高、多相体系... 详细信息

合成了一种含有TiO_2,Na和V的多相纳米管催化剂,采用红外光谱、X射线衍射、扫描电镜、透射电镜和N_2吸附-脱附法对该催化剂的结构和织构性质进行了表征,并用于水中30%H_2O_2选择性氧化硫化物制备对应的亚砜.该法具有产率极高、多相体系和简便等优点,可用于含一系列官能团底物的氧化。

关键词：硫化物亚砜砜类负载型钒催化剂纳米管

Modeling the spread of spatio-temporal phenomena through the incorporation of ANFIS and genetically controlled cellular automata: a case study on forest fire

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International Journal of Digital Earth 2013年第1期6卷 51-75页

作者： Mohammad H.Vahidnia ali A.Alesheikh Saeed Behzadi Sara Salehi Geodesy and Geomatics Engineering Department of Geospatial Information SystemK.N.Toosi University of TechnologyTehranIran Faculty of Geodesy and Geomatics Engineering Department of PhotogrammetryK.N.Toosi University of TechnologyTehranIran

Virtual representation and simulation of spatio-temporal phenomena is a promising goal for the production of an advanced digital *** modeling,which is one of the most helpful analyses in the geographic information system(GIS),plays a prominent role in meeting this *** study proposes a new model that considers both aspects of static and dynamic behaviors of spreadable spatio-temporal in cellular automata(CA)***,artificial intelligence tools such as adaptive neuro-fuzzy inference system(ANFIS)and genetic algorithm(GA)were used in accordance with the objectives of knowledge discovery and *** conditions in updating states are considered so traditional CA transition rules can be accompanied with the impact of fuzzy discovered knowledge and the solution of spread *** focused on the estimation of forest fire growth as an important case study for decision makers.A two-dimensional cellular representation of the combustion of heterogeneous fuel types and density on non-flat terrain were successfully linked with dynamic wind and slope *** validation of the simulation on experimental data indicated a relatively realistic head-fire *** investigations showed that the results obtained using the dynamic controlling with GA in the absence of static modeling with ANFIS were unacceptable.

关键词： geographic information system adaptive neuro-fuzzy inference system cellular automata genetic algorithm spatio-temporal spread forest fire digital earth

Challenging loop-mediated isothermal amplification(LAMP) technique for molecular detection of Toxoplasma gondii

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Asian Pacific Journal of Tropical Medicine 2015年第5期8卷 366-372页

作者： Shirzad Fallahi Zahra Arab Mazar Mehrdad Ghasemian ali Haghighi Department of Medical Parasitology and Mycology School of MedicineLorestan University of Medical Sciences Department of Medical Parasitology and Mycology School of MedicineShahid Beheshti University of Medical Sciences Department of Medical Parasitology and Mycology School of MedicineIran University of Medical Sciences

Objective:To compare analytical sensitivity and specificity of a newly described DNA amplification *** and nested PCR assay targeting the RE and Bl genes for the detection of Toxoplasma gondii(***) ***:The analytical sensitivity of LAMP and ncstcd-PCR was obtained against 10-fold serial dilutions of *** DNA ranging from 1 ng to 0.01 *** samples of other parasites and human chromosomal DNA were used to determine the specificity of molecular ***:After testing LAMP and nesled-PCR in duplicate,the detection limit of RE-LAMP.B1-LAMP,RE-nested PCR and B1-nested PCR assays was one fg.100 fg,1 pg and 10 pg of *** DNA *** the LAMP assays and nested PCRs were 100% *** RE-LAMP assay revealed the most sensitivity for the detection of *** ***:The obtained results demonstrate that the LAMP technique has a greater sensitivity for detection of ***,these findings indicate that primers based on the RE are more suitable than those based on the B1 ***,the B1-LAMP assay has potential as a diagnostic tool for detection of ***.

关键词： LAMP Nested-PCR Molecular detection Toxoplasma gondii

Silica triflate as an efficient reagent for the solvent-free synthesis of coumarins

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Chinese Chemical Letters 2007年第8期18卷 909-911页

作者： Farhad Shirini Katayoun Marjani Hossein Taherpour Nahzomi Mohammad ali Zolfigol Department of Chemistry College of ScienceGuilan UniversityRasht 41335Iran Faculty of Chemistry Teacher Training UniversityTehran 15614Iran Department of Chemistry College of ScienceBu-Ali Sina UniversityHamadan 65174Iran

Silica triflate, as a new silica-based reagent, can be used for the efficient synthesis of 4-substituted coumarins via a Pechmann reaction under solvent-free reaction conditions. All reactions were performed at 80 ℃ ... 详细信息

关键词： Silica triflate Coumarins Pechmann reaction Solvent-free reaction conditions Phenols

Experimental study of hydrogen sulfide hydrate formation: Induction time in the presence and absence of kinetic inhibitor

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Journal of Energy Chemistry 2013年第1期22卷 114-118页

作者： Yousef Salamat Abdolreza Moghadassi Mohammad Illbeigi ali Eslamimanesh Amir H. Mohammadi Department of Chemical Engineering Faculty of Engineering Arak University Chemical Engineering Department Faculty of Engineering Isfahan University Department of Chemical & Biomolecular Engineering Clarkson University Institut de Recherche en Gnie Chimique et Ptrolier (IRGCP) Paris Cedex France Thermodynamics Research Unit School of Chemical Engineering University of KwaZulu-Natal Howard College Campus

In this paper, the effect of adding different concentrations of kinetic inhibitors on the induction time of hydrogen sulfide hydrate formation in a reactor equipped with automatic adjustable temperature controller is studied. A novel method namely ＂sudden cooling＂ is used for performing the relevant measurements, in which the induction time of H2S hydrate in the presence/absence of PVP and L-tyrosine with different concentrations （100, 500, and 1000 ppm） is determined. As a result, PVP with the concentration of 1000 ppm in aqueous solution is detected as a more suitable material for increasing the induction time of H2S hydrate formation among the investigated kinetic hydrate inhibitors.

关键词： hy^ogen sulfide gas hydrates clathrate hydrates kinetic inhibitor induction time sudden cooling