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Cs_xH_(3-x)PW_(12)O_(40) heteropoly salts catalyzed quinoline synthesis via Friedl(a|¨)nder reaction

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Chinese Chemical Letters 2011年第3期22卷 288-291页

作者： Ezzat Rafiee Fereshte Khajooei Nejad mohammad joshaghani Faculty of Chemistry Razi UniversityKermanshah 67149Iran Kermanshah Oil Refining Company KermanshahIran

Various type of cesium partially substituted phosphotungstate,Cs_xH_（3-x）PW_（12）O_（40）（x = 1.0,2.0 and 2.5）,were synthesized and their catalytic activities were investigated in the synthesis of *** was shown that catalytic activities of these catalysts correlated to surface acidity and total number of acidic ***,a series of quinoline derivatives were synthesized with Cs2.5H0.5PW12O40 via the Friedlander reaction in high to excellent yields and the plausible mechanism was *** experiment,catalyst reusability,short reaction time and preclusion of toxic solvent are the advantages of this method.

关键词： Quinoline Friedl(ae)nder reaction Cesium Keggin salts Acidity

Different products in the reaction of the alcohols with cyclic and acyclic 1,3-dicarbonyl compounds:K_5CoW_(12)O_(40) as an electron transfer nano catalyst

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Chinese Chemical Letters 2012年第12期23卷 1363-1366页

作者： Ezzat Rafiee Masoud Kahrizi mohammad joshaghani Department of Chemistry Razi University

K5CoW12O40 was used as a highly effective catalyst for the benzylation of 1,3-dicarbonyl compounds, β-Keto enol ethers were obtained when cyclic 1,3-dicarbonyl compounds used in this conditions instead of linear ones. The present methodology offers a practical, simple, mild, environmentally friendly, and time-saving method for etherification. Very low loading of catalyst, ease of workup, ease of handling, and reusability of catalyst are other advantages of this catalyst.

关键词： Benzylation Etherification β-Keto enol ethers Nano catalyst Polyoxometalate

Non-destructive experimental testing and modeling of electrical impedance behavior of untreated and treated ultra-soft clayey soils

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Journal of Rock Mechanics and Geotechnical Engineering 2017年第3期9卷 161-168页

作者： Aram M.Raheem Cumaraswamy Vipulanandan mohammad S. joshaghani Department of Civil Engineering University of Kirkuk Kirkuk Iraq Department of Civil and Environmental Engineering University of Houston Houston TX USA

The characterization of ultra-soft clayey soil exhibits extreme challenges due to low shear strength of such ***,inspecting the non-destructive electrical impedance behavior of untreated and treated ultra-soft clayey soils gains more *** shear strength and electrical impedance were measured experimentally for both untreated and treated ultra-soft clayey *** shear strength of untreated ultra-soft clayey soil reached 0.17 kPa for 10% bentonite content,while the shear strengths increased to 0.27 kPa and 6.7 kPa for 10% bentonite content treated with 2% lime and 10% polymer,*** electrical impedance of the ultra-soft clayey soil has shown a significant decrease from 1.6 kΩ to 0.607 kΩ when the bentonite content increased from 2% to 10% at a frequency of 300 ***10%lime and 10% polymer treatments have decreased the electrical impedances of ultra-soft clayey soil with 10%bentonite from 0.607 kΩ to 0.12 kΩ and 0.176 kΩ,respectively,at a frequency of 300 kHz.A new mathematical model has been accordingly proposed to model the non-destructive electrical impedancefrequency relationship for both untreated and treated ultra-soft clayey *** new model has shown a good agreement with experimental data with coefficient of determination（R;）up to 0.99 and root mean square error（RMSE） of 0.007 kΩ.

关键词： Ultra-soft clayey soil Bentonite Lime Polymer Shear strength Non-destructive testing Electrical impedance

Ocular higher-order aberrations and mesopic pupil size in individuals screened for refractive surgery

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International Journal of Ophthalmology(English edition) 2012年第2期5卷 222-225页

作者： Seyed Javad Hashemian mohammad Soleimani Alireza Foroutan Mahmood joshaghani mohammad Jafar Ghaempanah mohammad Ebrahim Jafari Mehdi Yaseri Eye Research center Rasoul Akram Hospital Tehran University of Medical Sciences Tehran Iran Department of Epidemiology and Biostatistics School of Public Health Tehran University of Medical Sciences Tehran Iran

AIM: To study the distribution of ocular higher-order aberrations(HOAs) and mesopic pupil size in individuals screened for refractive surgery. · METHODS: Ocular HOAs and mesopic pupil size were studied in 2 458 eyes of 1 240 patients with myopia, myopic astigmatism and compound myopic astigmatism and 215 eyes of 110 patients with hyperopia, hyperopic astigmatism and compound hyperopic astigmatism using the Zywave aberrometer (Busch& Lomb). All patients had correctable refractive errors without a history of refractive surgery or underlying diseases. Root-mean-square values of HOAs, total spherical aberration, total coma and mesopic pupil size were analyzed. Ocular HOAs were measured across a ≥ 6.0 mm pupil, and pupil size measurements were performed under the mesopic condition. · RESULTS: The mean values of HOAs, total spherical aberration and total coma in the myopic group were 0.369 μm, ±0.233, 0.133±0.112μm and 0.330±0.188μm, respectively. In the hyperopic group the mean values of HOAs, total spherical aberration and total coma were 0.418μm±0.214, 0.202±0.209μm and 0.343±0.201μm, respectively. Hyperopes showed greater total HOAs (P <0.01) and total spherical aberration (P <0.01) compared to myopes. In age-matched analysis, only the amount of total spherical aberration was higher in the hyperopic group (P =0.05). Mesopic pupil size in the myopic group was larger (P ≤0.05). · CONCLUSION: The results suggested that significant levels of HOAs were found in both groups which are important for planning refractive surgeries on Iranians. There were significantly higher levels of total spherical aberration in hyperopes compared to myopes. Mesopic pupil size was larger in myopic group.

关键词： corneal wavefront aberration pupil mesopic vision race myopia hyperopia

屈光手术前个体眼高阶像差与中间视觉状态下瞳孔大小(英文)

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国际眼科杂志 2012年第7期12卷 1226-1230页

作者： Seyed Javad Hashemian mohammad Soleimani Alireza Foroutan Mahmood joshaghani mohammad Jafar Ghaempanah mohammad Ebrahim Jafari Mehdi Yaseri 德黑兰医疗科学大学附属Rasoul Akram医院眼科中心伊朗德黑兰德黑兰医疗科学大学公共卫生学院流行病与卫生统计学系伊朗德黑兰

目的:研究眼高阶像差的分布(HOAs)和mesopic瞳孔的大小在个体中筛选的屈光手术。方法:我们采用Zywave像差分析仪(博士伦)分别对患有近视、近视散光和复性近视散光患者1240例2458眼和患有远视、远视散光和复性远视散光患者110例215眼的... 详细信息

目的:研究眼高阶像差的分布(HOAs)和mesopic瞳孔的大小在个体中筛选的屈光手术。方法:我们采用Zywave像差分析仪(博士伦)分别对患有近视、近视散光和复性近视散光患者1240例2458眼和患有远视、远视散光和复性远视散光患者110例215眼的高阶像差和瞳孔大小进行检测。所有患者屈光不正均可矫正,无屈光手术史或潜在疾病。HOAs的均方根值、总球面像差、总斜射球面像差和中间视觉状态下瞳孔的大小进行了分析,眼高阶像差测量均在瞳孔≥6.0mm,且瞳孔大小的测量均为在中间视觉状态下进行。结果:HOAs均方根值、总球面像差和总斜射球面像差在近视眼组与远视眼组分别为0.369±0.233μm、0.133±0.112μm、0.330±0.188μm;0.418±0.214μm、0.202±0.209μm、0.343±0.201μm。与近视患者相比,远视患者的总HOAs和总球面像差更大(P均<0.01)。年龄匹配分析显示在远视眼组只有总球面像差较高(P=0.05)。近视眼组的中间视觉状态下瞳孔大小较大(P≤0.05)。结论:实验结果表明两组的HOAs的水平有显著差异,这对于将行屈光手术的伊朗人很重要。远视眼组的总球面像差显著高于近视眼组,中间视觉状态下瞳孔大小在近视眼组较大。

关键词：角膜波前像差瞳孔中间视觉种族近视,远视