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| 1 | New correlated MIMO radar covariance matrix design with low side lobe levels and much lower complexity显示文摘In this paper,a new correlated covariance matrix for Multi-Input Multi-Output(MIMO)radar is proposed,which has lower Side Lobe Levels(SLLs)compared to the new covariance matrix designs and the well-known multi-antenna radar designs including phased-array,MIMO radar and phased-MIMO radar schemes.It is shown that Binary Phased-Shift Keying(BPSK)waveforms that have constant envelope can be used in a closed-form to realize the proposed covariance matrix.Therefore,there is no need to deploy different types of radio amplifiers in the transmitter which will reduce the cost,considerably.The proposed design allows the same transmit power from each antenna in contrast to the phased-MIMO radar.Moreover,the proposed covariance matrix is full-rank and has the same capability as MIMO radar to identify more targets,simultaneously.Performance of the proposed transmit covariance matrix including receive beampattern and output Signal-to-Interference plus Noise Ratio(SINR)is simulated,which validates analytical results. | Roholah VAHDANI Hossein KHALEGHI BIZAKI Mohsen FALLAH JOSHAGHANI | 2021 | Chinese Journal of Aeronautics2021，34，1： | 2 |
| 2 | Ocular higher-order aberrations and mesopic pupil size in individuals screened for refractive surgery显示文摘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. | Seyed Javad Hashemian Mohammad Soleimani Alireza Foroutan Mahmood Joshaghani Mohammad Jafar Ghaempanah Mohammad Ebrahim Jafari Mehdi Yaseri | 2012 | International Journal of Ophthalmology(English edition)2012，5，2： | 2 |
| 3 | A revision for the synthesis of β-enaminones in solvent free conditions: efficacy of different supported heteropoly acids as active and reusable catalysts 显示文摘 | E RAFIEE M JOSHAGHANI S EAVAN! | 2008 | Green Chem2008，10，： | 1 |
| 4 | Effects of omeprazole consumption on serum levels of trace elements显示文摘 | Hamidreza Joshaghani Taghi Amiriani Gholamreza Vaghari Sima Besharat Aliasghar Molana Mohammadtaghi Badeleh Gholamreza Roshandel | 2012 | Journal of Trace Elements in Medicine and Biology2012，，4： | 1 |
| 5 | Non-destructive experimental testing and modeling of electrical impedance behavior of untreated and treated ultra-soft clayey soils显示文摘The characterization of ultra-soft clayey soil exhibits extreme challenges due to low shear strength of such material.Hence,inspecting the non-destructive electrical impedance behavior of untreated and treated ultra-soft clayey soils gains more attention.Both shear strength and electrical impedance were measured experimentally for both untreated and treated ultra-soft clayey soils.The 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,respectively.The 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 kHz.The10%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 soils.The new model has shown a good agreement with experimental data with coefficient of determination(R^2)up to 0.99 and root mean square error(RMSE) of 0.007 kΩ. | Aram M.Raheem Cumaraswamy Vipulanandan Mohammad S. Joshaghani | 2017 | Journal of Rock Mechanics and Geotechnical Engineering2017，9，3： | 1 |
| 6 | Determining corneal power using Pentacam after myopic photorefractive keratectomy显示文摘 | Falavarjani KG Hashemi M Joshaghani M | | 0，，： | 1 |
| 7 | The silica supported H3PW12 O40 (a heteropoly acid) as an efficient and reusable catalyst for a one-pot syn- thesis of β-acetamido ketones by Dakin - West reaction 显示文摘 | Rafiee Ezzat Shahbazi Fomaida Joshaghani Mohammad Tork Fariba | 2005 | Journal of Molecular Catalysis A : Chemical2005，242，12： | 1 |
| 8 | The silica supported H 3 PW 12 O 40 (a heteropoly acid) as an efficient and reusable catalyst for a one-pot synthesis of β-acetamido ketones by Dakin–West reaction显示文摘 | Ezzat Rafiee Fomaida Shahbazi Mohammad Joshaghani Fariba Tork | 2005 | Journal of Molecular Catalysis. A, Chemical2005，，1： | 1 |
| 9 | Association between pruritus and serum concentrations of parathormone, calcium and phosphorus in hemodialysis patients 显示文摘 | Tajbakhsh R Joshaghani HR Bayzayi F | 2013 | Saudi J Kidney Dis Transpl2013，24，4： | 1 |
| 10 | 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)显示文摘目的: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。 | Seyed Javad Hashemian Mohammad Soleimani Alireza Foroutan Mahmood Joshaghani Mohammad Jafar Ghaempanah Mohammad Ebrahim Jafari Mehdi Yaseri | 2012 | 国际眼科杂志2012，12，7： | 1 |
| 11 | Amine-catalyzed preparation of oxygenated derivatives of symmetric trisulfides显示文摘 | Pourshahbaz M Joshaghani M Rafiee E | | 0，，44： | 1 |
| 12 | Heteropoly acids as solid green bronsted acids for a one-pot synthesis of Dakin-West reaction显示文摘 | RAFIEE E TORK F JOSHAGHANI M | 2006 | Bioorg Med Chem Lett2006，16，5： | 1 |
| 13 | γ-A1203-Supported 12-Tungstosilicic Acid as an Efficient Heterogeneous Catalyst for the Synthesis of a-Aminonitrile显示文摘 | RAFIEE E RASHIDZADEH S JOSHAGHANI M | 2008 | Synthetic Commun2008，38，16： | 1 |
| 14 | Esterification of mandelic acid catalyzed by heteropoly acid显示文摘 | Ezzat Rafiee Mohammad Joshaghani Fariba Tork | 2008 | J Mol Catal A:Chem2008，283，： | 1 |
| 15 | Supported heteropoly acids offering strong option for efficient and cleaner processing for the synthesis of imidazole deriva- tives under solvent-free condition 显示文摘 | RAFIEE E MAHDAVI H JOSHAGHANI M | 2011 | Mol Divers2011，15，1： | 1 |
| 16 | Association between pruritus and serum concentrations of parathormone, calcium and phosphorus in hemodialysis patients 显示文摘 | Tajbakhsh R Joshaghani HR Bayzayi F | 2013 | Saudi J Kidney Dis Transpl2013，24，4： | 1 |
| 17 | Cs_xH_(3-x)PW_(12)O_(40) heteropoly salts catalyzed quinoline synthesis via Friedl(a|¨)nder reaction显示文摘Various type of cesium partially substituted phosphotungstate,CsxH3-xPW12O40(x = 1.0,2.0 and 2.5),were synthesized and their catalytic activities were investigated in the synthesis of quinoline.It was shown that catalytic activities of these catalysts correlated to surface acidity and total number of acidic sites.Finally,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 proposed.Simple experiment,catalyst reusability,short reaction time and preclusion of toxic solvent are the advantages of this method. | Ezzat Rafiee Fereshte Khajooei Nejad Mohammad Joshaghani | 2011 | Chinese Chemical Letters2011，22，3： | 1 |
| 18 | The silica supported H3PW12O40(a heteropoly acid)as an efficient and reusable catalyst for a one-pot synthe-sis ofβ-acetamido ketones by Dakin-West reaction显示文摘 | Ezzat Rafiee Fomaida Shahbazi Mohammad Joshaghani | 2005 | Journal of Molecular Catalysis A:Chemical2005，242，12： | 1 |
| 19 | Esterification of mandelic acid catalyzed by heteropoly acid显示文摘 | Ezzat Rafiee Mohammad Joshaghani Fariba Tork | 2008 | J Mol Catal A: Chem2008，283，： | 1 |
| 20 | The silica supported H3 PW12 04o (a heteropoly acid) as an efficient and reusable catalyst for a one-pot synthesis of-acetamido ketones by Dakin-West reaction显示文摘 | Ezzat Rafiee Fomaida Shahbazi Mohammad Joshaghani | 2005 | J Mol Catal A: Chcm2005，242，： | 1 |
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