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用于合成新型1,3,5-三芳基吡唑啉衍生物的磷钨酸铯盐的纳米塑形、模板合成及结构研究(英文)

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催化学报 2012年第2期33卷 237-246页

作者： Razieh FAZAELI ham.d ALIYAN Shahram TANGESTANINEJAd Esmaeel mOhammAdI maryam BORdBAR department of Chemistry Shahreza BranchIslamic Azad University department of Chemistry Mobarakeh BranchIslamic Azad University department of Chemistry Faculty of ScienceThe University of Qom

The elimination of the silica matrix of composites by HF occurred by a two-step reaction deposition of a Cs2.5H0.5PW12O40(CsHPW) salt *** used 2d hexagonal SBA-15 silica as a template for the nanofabrication of CsHPW *** CsHPW materials are stable against leaching and colloidization in polar *** catalytic performance of the nanocast CsHPW materi-als exceeded that of bulk Cs2.5H0.5PW12O40,which is the most active among the acidic HPW salts.A series of novel 1,3,5-triaryl-pyrazoline derivatives were synthesized by the reaction between chalcone and phenylhydrazine in high yield in the presence of CsHPW salt nanocrystals.

关键词： nanocasting nanoparticle green chemistry 1,3,5-triaryl-2-pyrazoline polyoxometalate

Outcomes after arthroscopic repair of rotator cuff tears in the setting of mild to moderate glenohumeral osteoarthritis

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World Journal of Orthopedics 2022年第7期13卷 631-643页

作者： Ian S Hong Allison J Rao Tyler L CarlLee Joshua d meade daniel J Hurwit Gregory Scarola david P Trofa Shadley C Schiffern Nady ham.d Patrick m Connor James E Fleischli Bryan michael Saltzman department of Orthopedic Surgery Atrium Health Musculoskeletal InstituteCharlotteNC 28207United States department of Sports medicine Orthocarolina Research InstituteCharlotteNC 28207United States department of Orthopedic Surgery Columbia University Irving Medical CenterNew York CityNY 10032United States department of Orthopaedic Surgery Carolinas Medical CenterCharlotteNC 28207United States department of Orthopedic Surgery OrthoCarolina Sports Medicine CenterCharlotteNC 28207United States

BACKGROUNd Rotator cuff pathology is a very common source of shoulder ***,osteoarthritis of the glenohumeral joint can cause shoulder pain and produce similar *** management can be indicated for both pathologies,however,outcomes data is limited when examining rotator cuff repair(RCR) in the setting of glenohumeral arthritis(GHOA).Thus,this study sought to determine outcomes for patients who undergo RCR in the setting of *** To evaluate if a relationship exists between outcomes of RCR in the setting of *** This was a retrospective analysis of patients who underwent arthroscopic rotator cuff repair with concurrent glenohumeral osteoarthritis between *** were stratified based on rotator cuff tear size and glenohumeral osteoarthritis *** were paired 1:1 with patients without glenohumeral *** included had a minimum two year *** of conversion to total shoulder arthroplasty,complication rates following initial surgery,and patient-reported outcome measures were *** A total of 142 patients were *** number of patients that required total shoulder arthroplasty within two years after index surgery was low.2/71(2.8%) patients with GHOA,and 1/71(1.4%) without *** rotator cuff repair,both groups showed favorable patientreported *** Patients with glenohumeral osteoarthritis who underwent arthroscopic rotator cuff repair showed comparable outcomes to patients without glenohumeral osteoarthritis.

关键词： Rotator cuff repair Rotator cuff tear Glenohumeral osteoarthritis Shoulder Arthroscopic Outcomes

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细砂中钢带-填土废塑料瓶抗拔性能试验研究

岩土力学 2022年第11期43卷 3073-3082页

作者： ALIREZA BEYRANVANd SEYed ham.d LAJEVARdI mAHmOUd GHAZAVI SEYed mOhammAd mIRHOSSEINI 技术和职业大学(TVU)土木工程系德黑兰伊朗伊斯兰阿扎德大学土木工程系阿扎德分校阿拉克伊朗 K.N.图斯大学土木工程系德黑兰伊朗

研究利用填土废塑料瓶作为横向构件附在加筋土挡墙(mSEWs)中钢带上可行性。配筋中的横向构件对增加抗拔力有重要影响。该加筋系统是由作为纵向构件的钢带和作为横向构件的填土废塑料瓶组成。为更好地研究以填土废塑料瓶作为横向构件对... 详细信息

研究利用填土废塑料瓶作为横向构件附在加筋土挡墙(mSEWs)中钢带上可行性。配筋中的横向构件对增加抗拔力有重要影响。该加筋系统是由作为纵向构件的钢带和作为横向构件的填土废塑料瓶组成。为更好地研究以填土废塑料瓶作为横向构件对抗拔性能的影响,对一条独立的钢带和分别带有1~7个瓶子的钢带进行了拉拔试验。在不同的法向应力下进行了超过18次的实验室大型拉拔试验(例如拉拔箱尺寸为长1.2 m、宽0.6 m、高1.0 m)来评估新提出的加固元件的性能。试验结果表明,在扁钢带上建立三维空间对提高抗拔阻力影响很大。提高抗拔阻力最有效的方法是在距离S与直径d之比为3的钢带上加入4个横向构件,其平均抗拔阻力约为单独钢带的5倍。有横向构件和无横向构件钢带的极限抗拔阻力随竖向应力的增大而增大。

关键词：抗拔阻力横向构件废塑料瓶加筋土抗拔试验

Effect of Zn doping on electronic structure and optical properties zincblende GaN(A dFT+U insight)

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Communications in Theoretical Physics 2021年第3期73卷 139-147页

作者： muhammad Junaid Iqbal Khan Zarfishan Kanwal masood Yousaf ham.d Ullah Javed Ahmad Abid Latif Yong-Han Shin Ata Ur Rahman Khalid Laboratory of Theoretical and Experimental Physics Department of PhysicsBahauddin Zakariya UniversityMultan(60800)Pakistan department of Civil Engineering Faculty of Engineering and TechnologyBahauddin Zakariya UniversityMultan60800Pakistan department of Physics Division of Science and TechnologyUniversity of EducationTownshipLahore54770Pakistan multiscale materials modelling Laboratory Department of PhysicsUniversity of UlsanUlsan44610Republic of Korea

The development of new materials,having exceptional properties in comparison to existing materials is highly required for bringing advancement in electronic and optoelectronic *** this fact,we investigated structural,electronic,and optical properties of zincblende GaN doped with selected Zn concentrations(6.25%,12.50%,and 18.70%),using the first-principle calculations based on density functional theory with GGA+*** conducted the entire study using the WIEN2K *** this study,we calculated various significant parametric quantities such as cohesive energies,formation energies,bulk moduli,and lattice constants along with the study of optical and electronic properties by substituting Ga atoms with Zn atoms in 1×2×2 *** structural stability is confirmed by studying the phonon dispersion curves which suggest that Zn:GaN material is stable against the 6.25%and 18.70%Zn concentrations while for 12.50%,it shows *** Hubbard values U=0,2,4,6 eV were added to GGA and the electronic properties were improved with the U=6 *** absorption was blue shifted while the refractive index and dielectric constant were increased with increasing the Zn *** properties are enhanced due to the prime contribution of cations(Zn)3ri *** optical and electronic properties are further discussed in detail in the entire study.

关键词： density functional theory(dFT) optoelectronics Ⅲ-Ⅴsemiconductors optical properties electronic properties structural properties

Consolidation behavior of the expansive clay treated with cement and zeolite

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Journal of Central South University 2022年第9期29卷 3140-3157页

作者： ham.d AHmAdI CHENARBONI Seyed ham.d LAJEVARdI Hossein mOLAABASI Ehsanollah ZEIGhamI department of Civil Engineering Arak BranchIslamic Azad UniversityArakIran department of Civil Engineering Gonbad Kavous UniversityGonbadGolestanIran

The expansive clays are extremely sensitive to the slight moisture alteration,exhibiting sequentially volume *** settlement of the buildings and infrastructures underlying expansive soil is a critical challenge that geotechnical engineers have to deal ***,the objective of this study is to assess the alteration in the compressibility behavior of expansive clay respecting partial replacement of cement by zeolite in cemented *** this purpose,7 and 28 d cured samples treated with 6%,8%,10%,and 12%cement addition and 0,10%,30%,50%,70%,and 90%cement replacement by zeolite were investigated through Atterberg limit and a series of one-dimensional consolidation tests to evaluate the consistency limits and compressibility *** liquid limits of the soil samples indicated a decremental trend as the cement content ***,the increase of zeolite replacement up to 30%in each specific cement content diminished liquid limit to its lowest *** increment of zeolite replacement increased the liquid limit of the soil-binder *** lowest plasticity index was also achieved at the 30%zeolite replacement percentage;hence,the lowest swelling potential would be resulted,concerning an indirect *** results of the consolidation experimentations disclosed that zeolite replacement had adverse influence on consolidation parameters of cemented samples such as compression index,swell index,coefficient of compressibility,coefficient of volume compressibility,and coefficient of consolidation after 7 d of curing whereas after 28 d of curing,the 30%zeolite-replaced samples represented the best consolidation ***,it can be stated that the addition of cement alongside the partial substitution of cement by zeolite can be a beneficial strategy for the geo-environmental targets of this study.

关键词： expansive clays cement zeolite consolidation consistency limits

Grade of donor liver microvesicular steatosis does not affect the postoperative outcome after liver transplantation

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Hepatobiliary & Pancreatic diseases International 2017年第6期16卷 617-623页

作者： Anne Andert Tom Florian Ulmer Wenzel Schoning daniela Kroy marc Hein Patrick ham.d Alizai Christoph Heidenhain Ulf Neumann maximilian Schmeding department of General Visceral and Transplant SurgeryUniklinik RWTH Aachen AachenGermany department of Internal medicine Uniklinik RWTH Aachen AachenGermany department of Anaesthesiology Uniklinik RWTH Aachen AachenGermany department of General and Visceral Surgery Sana Hospital Düsseldorf-Gerresheim Germany

BACKGROUNd:The potential effect of graft steatosis on the postoperative liver function is discussed controversially. The present study aimed to evaluate the effect of the donor liver microvesicular steatosis on the postoperative outcome after liver ***:Ninety-four patients undergoing liver transplantation at the University Hospital Aachen were included in this study. The patient cohort was divided into three groups according to the grade of microvesicular steatosis(miS):miS miS 30%-60%(n=41) and miS >60%(n=26).The outcomes after liver transplantation were evaluated, including the 30-day and 1-year patient and graft survival rates and the incidences of early allograft dysfunction(EAd) and primary nonfunction(PNF). RESULTS:The incidences of EAd and PNF did not differ significantly between the groups. We observed 5 cases of PNF,one occurred in the miS d 4 in the miS 30%-60% group. The 30-day and 1-year graft survivals did not differ significantly between groups. The 30-day patient survival rates were 100% in all groups. The 1-year patient survival rates were 94.4% in the miS miS 30%-60% group and 90.9% in the miS >60% ***:microvesicular steatosis of donor livers has no negative effect on the postoperative outcome after liver transplantation.

关键词： liver transplantation liver steatosis microvesicular steatosis early allograft dysfunction

On the mHd squeeze flow between two parallel disks with suction or injection via ham and HPm

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Frontiers of mechanical Engineering 2014年第3期9卷 270-280页

作者： d. d. GANJI m. ABBASI J. RAHImI m. GHOLAmI I. RAHImIPETROUdI department of mechanical Engineering Babol University of Technology Babol Iran department of mechanical Engineering Sari Branch Islamic AzadUniversity Sari Iran department of Electrical and Computer Engineering Babol Universityof Technology Babol Iran department of mechanical Engineering College of Mechanic TehranScience and Research Branch Islamic Azad University Darnavand Iran

An analysis has been performed to study the problem of magneto-hydrodynamic （mHd） squeeze flow of an electrically conducting fluid between two infinite, parallel disks. The analytical methods called Homotopy Analysis method （ham） and Homotopy Perturbation method （HPm） have been used to solve nonlinear differential equations. It has been attempted to show the capabilities and wide-range applications of the proposed methods in comparison with a type of numerical analysis as Boundary Value Problem （BVP） in solving this problem. Also, the velocity fields have been computed and shown graphically for various values of physical parameters. The objective of the present work is to investigate the effect of squeeze Reynolds number, Hartmann number and the suction/injection parameter on the velocity field. Furthermore, the results reveal that ham and HPm are very effective and convenient.

关键词： Homotopy Analysis method Homotopy Perturbation method incompressible flow magneto-hydrodynamic flow parallel disks

Synthesis and characterization of poly(2,5-diyl pyrrole-2-pyrrolyl methine)semiconductor copolymer

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Journal of Semiconductors 2018年第10期39卷 10-16页

作者： hammou Gherras Ahmed Yahiaoui Aicha Hachemaoui Abdelkader Belfedal Abdelkader dehbi Abdel-ham.d I.mourad Laboratoire de chimie Organique Macromoleculaire et des Materiaux(LCOMM)Universite de MascaraFaculte des Sciences ExactesBP 763 Mascara 29000Algeria Laboratoire de Chimie Physique des macromolecules et Interfaces Biologiques Universite de Mascara Algeria Laboratoire de Genie Physique Universite d'Ibn KhaldounTiaret BP 78 14000 TiaretAlgeria mechanical Engineering department College of EngineeringUnited Arab Emirates UniversityAl-AinUAE On leave from mechanical design department Faculty of EngineeringHelwan UniversityCairoEgypt

The proposed technique to synthesise poly {（2,5-diyl pyrrole）（2-pyrrolyl methine）}（PPPm） copolymer by condensation of pyrrole and pyrrole-2-carboxaldehyde monomers catalyzed by maghnite-H＋ is *** protons are exchanged with maghnite-H＋, which is available in the form of a montmorillonite silicate clay sheet. The effect of several parameters such as time and temperature of copolymerization, [pyrrole]/[pyrrole-2-carboxaldehyde] molar ratio, amount of maghnite-H＋, and solvent on the produced poly（2,5-diyl pyrrole-2-pyrrolyl methine） semiconductor copolymer material（yield%） was investigated. The synthesized PPPm copolymer was characterized using nuclear magnetic resonance, Fourier transform infrared, and ultraviolet-visible *** results show that the synthesized copolymer using the copolymerization technique is a real organic copolymer consisting of two monomers units（i.e, pyrrole and pyrrole-2-carboxaldehyde）. Also, the synthesized copolymer is more soluble than polypyrrole in most of the commonly used organic solvents. Hence, copolymerization of pyrrole with pyrrole-2-carboxaldehyde will overcome the insolubility of polypyrrole. In addition, the resultant copolymer exhibits good film formability. The produced copolymer has several potential applications in the field of rechargeable batteries, sensors, capacitors, light emitting diodes, optical displays, and solar cells.

关键词： proposed technique maghnite-H^+ catalyst conducting PPPm copolymer pyrrole pyrrole-2-carboxaldehyde

Ephemeroptera, Plecoptera, Trichoptera and Odonata(Insecta)diversity and distribution at Bukit merah Resevoir River Feeders

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湿地科学 2016年第3期14卷 328-336页

作者： Suhaila Ab ham.d Nurhalida Hanapi mohd Fakhrullah Salatssalam mohd Afendi Amir Shahruddin mohd Sah School of Biological Sciences Universiti Sains Malaysia

A study on the distribution of Ephemeroptera, Plecoptera, Trichoptera and Odonata in relation of environmental interruptions was done at three different rivers tributaries of Bukit merah Reservoir, Perak namely Sungai Jelai, Sungai Ara, and Sungai Kurau from October 2013 to January 2014. A total of 1 942 individuals were collected during the 4month of the study. The number of Ephemeroptera was highest, which was found at Sungai Jelai and Sungai Kurau and dominated by Baetis from family Baetidae while at Sungai Kurau dominated by Trichoptera, Hydropsyche from family Hydropsychidae. Ecological and biological indices have been used to evaluate the diversity of Ephemeroptera, Plecoptera, Trichoptera and Odonata at each river. The highest Simpson's diversity index(d=0.893) and Pielou's evenness index(E=0.803) were recorded at Sungai Jelai while Sungai Ara had the highest value of margalef's richness index(mgR I=5.698). The variance for the assemblages of Ephemeroptera, Plecoptera, Trichoptera and Odonata influenced by9 chemical and physical variables was really a satisfactory with total variance explained of 57.2%. The results of canonical correspondence analysis(CCA) model showed that two groups of insects taxa characterized by water *** first group from the CCA analysis clustered the Ephemeroptera, Plecoptera, Trichoptera and Odonata genera showed that deterioration in dissolved oxygen concentration, pH and nitrate while the second group showed dependence on total dissolved solids(TdS), conductivity, total suspended solid(TSS) and velocity. The study showed that the distribution of Ephemeroptera, Plecoptera, Trichoptera and Odonata taxa was affected by the environmental interruptions such as human residential area, agricultural plantation and river embankment.

关键词： aquatic insect diversity distribution environmental interruptions