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Am.rican Journal of Analytical Chem.stry 2011年第6期2卷 697-709页

作者： m.ham.d m. hassanien ali m. hassan Wael I. m.rtada Ahm.d A. El-Asm. 不详

2-(pyridine-2-yl)-N-p-chlorohydrazinecarbothioam.de (HCPTS) was synthesized, characterized and successfully applied for the preconcentration of Cu(II), Ni(II), Zn(II), Cd(II), Co(II), Pb(II), Fe(II), and Hg(II) in water, blood, and urine sam.les prior to graphite furnace atom.c absorption determ.nation (GFAAS);Hg was determ.ned by cold vapor technique. Under the optim.m.experim.ntal conditions (i.e. pH = 8, 10–4 m.of HCPTS, 0.05% w/v of Triton X-114), calibration graphs were linear in the range of 0.02 to 200 ng?m.–1 for Co(II), Cd(II), Pb(II) and Ni(II);0.03 to 200 ng?m.–1 for Cu(II);0.07 to 200 ng?m.–1 for Fe(II) and Zn(II) and 0.02 to 150 ng?m.–1 for Hg(II). The enrichm.nt factors were 43, 51, 41, 46, 54, 40, 45 and 52 for Cu(II), Ni(II),Zn (II), Cd(II), Co(II), Pb(II), Fe(II), and Hg(II), respectively. The lim.t of detection were found to be 0.019, 0.094, 0.0514, 0.052, 0.0165, 0.047, 0.068 and 0.041 ng?m.–1 for Cu(II), Ni(II), Zn(II), Cd(II), Co(II), Pb(II), Fe(II), and Hg(II), respectively. The developed m.thod was applied to the determ.nation of these m.tal ions in water, blood and urine sam.les with satisfactory results.

关键词： Heavy m.tals Preconcentration Cloud Point Extraction 2-(Pyridine-2-Yl)-N-P-Chlorohydrazinecarbothioam.de

Kinetic param.ters and therm.l decom.osition for Novel 1,1-m.lonyl-bis(4-p-Chlorophenylthiosem.carbazide) and Cu(II), Co(II), Zn(II) and Sn(II) com.lexes(H<sub>4</sub>pClm.TS) synthesized by electrochem.cal m.thod

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Natural Science 2011年第9期3卷 783-794页

作者： Ragab R. Am.n Yam.ny B. Yam.ny m.ham.d Abo-Aly ali m. hassan 不详

Anodic oxidation of Co, Cu, Zn, and Sn m.tals in an acetone solution of 1,1-m.lonayl-bis(4-p- Chlorophenylthiosem.carbazide) yields com.lexes of com.osition with general form.la [Co2(pClm.TS)(H2O)6]·2H2O, [Cu2(pClm.TS)(H2O)6], [Zn2(pClm.TS)(H2O)6] and [Sn2(pClm.TS)(H2O)6]·2H2O. Chelation was investigated based on elem.ntal analysis, conductivity, m.gnetic m.m.nt, spectral (UV-Vis, IR, Ram.n, 1HNm., m.ss), therm.l, and ESR studies. The Ram.n and infrared spectral studies suggests the tridentate behavior of the ligand from.each tail. Since the ligand has two thiose- m.carbazide groups, it m.y acts in an SNO tridentate fashion from.each side with one of the two m.tal ions form.ng a polynuclear com.lex coordinating through both of the lone pair of electrons the enolic oxygen of the carbonyl group (C=O), the azom.thine nitrogen (C=N) and the thioenol form.of the thiocarbonyl group (C=S). The differential therm.gravim.tric analysis (DTG) curves were used to study the decom.osition steps of the isolated com.lexes using Horowitz-m.tzger (Hm. and Coats-Redfern (CR) m.thods. The kinetic therm.dynam.c param.ters such as: E*, ΔH*, ΔS*and ΔG* are calculated from.the DTG curves.

关键词： m.tal(II) Com.lexes Electrochem.cal Therm.gravim.tric Bis-Thiosem.carbazide

Lim.ting the m.gration of Bisphenol A from.Polycarbonate Using Dielectric Barrier Discharge

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Open Journal of Synthesis Theory and Applications 2014年第3期3卷 27-36页

作者： Em.d A. Solim.n Ahm.d Sam.r ali m. A. hassan m.ham.d S. m.hy-Eldin Gam.l Abd El-Naim Center of Plasm. Technology Al-Azhar University Nasr City Cairo Egypt Departm.nt of Chem.stry Faculty of Science Al-Azhar University Nasr City Cairo Egypt Departm.nt of Polym.r m.terials Research Advanced Technology and New Materials Research Institute SRTA-City New Bourg El-Arab City Alexandria Egypt

Dielectric barrier discharge is used as a cheap technique for surface treatm.nt of polycarbonate. The discharge system.is working in open air at atm.spheric pressure. The treatm.nts are carried out at low discharge powers (1.5 and 2 W) for treatm.nt tim. (2.5 - 15 m.n). The treated sam.les show decrease in the contact angle and increase in the crystallinity, therm.l stability and surface roughness. The effect of ozone on the increase in the oxygen containing functional groups is discussed. The treatm.nt process shows effective lim.tation of the m.gration of bisphenol A from.the surface of polycarbonate due to the cross linking. Zero m.gration of bisphenole A is recorded as the sam.le is treated for 7.5 m.n. The treatm.nt process is found to be very efficient with very low cost.

关键词： Dielectric Barrier Discharge Polycarbonate Bisphenole A Surface Treatm.nt

Com.lem.nt-dependent neuroinflam.ation in spinal cord injury:from.pathology to therapeutic im.lications

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Neural Regeneration Research 2025年第5期20卷 1324-1335页

作者： hassan Saad Bachar El Baba ali Tfaily Firas Kobeissy Juanm.rco Gutierrez Gonzalez Daniel Refai Gerald R.Rodts Christian m.stroph David Gim.el Jonathan Grossberg Daniel L.Barrow m.tthew F.Gary ali m.Alawieh Departm.nt of Neurosurgery Emory University School of MedicineAtlantaGAUSA Departm.nt of Neurology Yale UniversityNew HavenCTUSA Center for Neurotraum. Multiomics&Biomarkers(CNMB)Morehouse School of MedicineAtlantaGAUSA

Spinal cord injury rem.ins a m.jor cause of disability in young adults,and beyond acute decom.ression and rehabilitation,there are no pharm.cological treatm.nts to lim.t the progression of injury and optim.ze recovery in this *** the thorough investigation of the com.lem.nt system.in triggering and propagating cerebral neuroinflam.ation,a sim.lar role for com.lem.nt in spinal neuroinflam.ation is a focus of ongoing *** this work,we survey the current literature investigating the role of com.lem.nt in spinal cord injury including the sources of com.lem.nt proteins,triggers of com.lem.nt activation,and role of effector functions in the *** study relevant data dem.nstrating the different triggers of com.lem.nt activation after spinal cord injury including direct binding to cellular debris,and or activation via antibody binding to dam.ge-associated m.lecular *** effector functions of com.lem.nt have been im.licated in spinal cord injury,and we critically evaluate recent studies on the dual role of com.lem.nt anaphylatoxins in spinal cord injury while em.hasizing the lack of pathophysiological understanding of the role of opsonins in spinal cord *** this pathophysiological review,we system.tically review the different translational approaches used in preclinical m.dels of spinal cord injury and discuss the challenges for future translation into hum.n *** review em.hasizes the need for future studies to dissect the roles of different com.lem.nt pathways in the pathology of spinal cord injury,to evaluate the phases of involvem.nt of opsonins and anaphylatoxins,and to study the role of com.lem.nt in white m.tter degeneration and regeneration using translational strategies to supplem.nt genetic m.dels.

关键词： com.lem.nt neuroinflam.ation neuroplasticity regeneration spinal cord injury targeted therapy

Tight Rock Wettability and Its Relationship to Other Petrophysical Properties： A m.ntney Case Study

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Journal of Earth Science 2017年第2期28卷 381-390页

作者： ali Javaheri hassan Dehghanpour Jam.s m.Wood University of Alberta Edmonton AB T6G 2R3 Canada Encana Corporation Calgary AB T2P 2S5 Canada

Understanding and m.delling the wettability of tight rocks is essential for designing fracturing and treatm.nt fluids. In this paper, we m.asure and analyze spontaneous im.ibition of water and oil into five twin core plugs drilled from.the cores of a well drilled in the m.ntney Form.tion, an unconventional oil and gas play in the Western Canadian Sedim.ntary Basin. We characterize the sam.les by m.asuring the m.neralogy using XRD（x-ray diffraction）, total organic carbon content, porosity, and perm.ability. Interestingly, the equilibrated water uptake of the five sam.les is sim.lar, while, their oil uptake increases by increasing the core porosity and perm.ability. We define two wettability indices for the oil phase based on the slope and equilibrium.values of water and oil im.ibition curves. Both indices increase by increasing porosity and perm.ability, with the slope affinity index showing a stronger correlation. This observation suggests that part of the pore network has a stronger affinity to oil than to water. We also observe that the two indices decrease by increasing neutron porosity and gam.a ray param.ters m.asured by wireline logging tools. The sam.les with higher gam.a ray and neutron porosity are expected to have greater clay content, and thus less effective porosity and perm.ability.

关键词： spontaneous im.ibition wettability petrophysics gam.a ray log

Novel delay-dependent stability analysis of Takagi-Sugeno fuzzy uncertain neural networks with tim. varying delays

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Chinese Physics B 2012年第7期21卷 49-60页

作者： m. Syed ali Departm.nt of m.them.tics Thiruvalluvar University

This paper presents the stability analysis for a class of neural networks with tim. varying delays that are represented by the Takagi^ugeno IT-S） m.del. The m.in results given here focus on the stability criteria using a new Lyapunov functional. New relaxed conditions and new linear m.trix inequality-based designs are proposed that outperform.the previous results found in the literature. Num.rical exam.les are provided to show that the achieved conditions are less conservative than the existing ones in the literature.

关键词： neutral neural networks linear m.trix inequality Lyapunov stability tim. varying delays

A coupled CFD sim.lation approach for investigating the pyrolysis process in industrial naphtha therm.l cracking furnaces

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Chinese Journal of Chem.cal Engineering 2022年第4期35卷 528-542页

作者： m.hsen Rezaeim.nesh ali Asghar Ghoreyshi S.m.Peygham.arzadeh Seyed hassan Hashem.badi Chem.cal Engineering Departm.nt Babol Noshirvani University of TechnologyShariati Ave.47148-71167 BabolIran Departm.nt of Chem.cal Engineering Mahshahr BranchIslamic Azad UniversityMahshahrIran Com.utational Fluid Dynam.cs(CFD)Research Laboratory School of ChemicalPetroleum and Gas EngineeringIran University of Science and Technology(IUST)TehranIran

In the steam.therm.l cracking of naphtha,the hydrocarbon stream.flows inside tubular reactors and is exposed to flam.s of a series of burners in the *** this paper,a full three-dim.nsional com.utational fluid dynam.cs(CFD)m.del was developed to investigate the process variables in the firebox and reactor coil of an industrial naphtha *** com.rehensive CFD m.del consists of a standard k-εturbulence m.del accom.anied by a m.lecular kinetic reaction for cracking,detailed com.ustion m.del,and radiative *** order to im.rove the steam.cracking perform.nce,the m.del is solved using a proposed iterative *** respect to tem.erature,product yield and specially propylene-toethylene ratio(P/E),the sim.lation results agreed well with industrial data obtained from.a m.ga olefin plant of a petrochem.cal *** deviation of P/E results from.industrial data was less than 2%.The obtained velocity,tem.erature,and concentration profiles were used to investigate the residence tim.,coking rate,coke concentration,and som. other *** coke concentration at coil exit was1.9×10^(-3)%(m.ss)and the residence tim. is calculated to be 0.29 *** results can be used as a scientific guide for process engineers.

关键词： Naphtha therm.l cracking CFD m.deling System. engineering Residence tim. Product yield

Oviposition preference of swallowtail butterfly, Papilio polytes （Lepidoptera Papilionidae） on four Rutaceae （Sapindales） host plant species

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Insect Science 2010年第4期17卷 369-378页

作者： Suwarno m.R. Che Salm.h Arshad ali A. Abu hassan School of Biological Sciences Universiti Sains Malaysia 11800 Penang Malaysia Departm.nt of Biology Faculty of Science University Syiah Kuala 23111 Banda Aceh Indonesia University of Florida IFAS. Mid-Florida Research and Education Center 2725 Binion Road Apopka FL 32703-8504 USA

Oviposition preference and egg deposition site selection by the butterfly, Papilio polytes L. （Lepidoptera： Papilionidae） on four rutaceous host plants, Citrus aurantofolia （Christm.） Swing., Citrus hystrix DC., Citrus reticulata Blanco, and m.rraya koenigii （L.） Sprengel, were assessed in field cages m.asuring 2 × 2 ×2 m. Sim.ltaneous two-choice and four-choice oviposition tests of whole host plants were conducted. The m.an total num.er of eggs laid per plant on C. reticulata in the two-choice test was significantly higher （P 〈 0.01） than those on C. aurantifolia, C. hystrix, andm. koenigii. Am.ng the three other host plants, C. aurantifolia was preferred over C. hystrix, and m. koenigii （P 〈 0.01） and C. hystrix was preferred over m. koenigii （P 〈 0.01）. In the four-choice test, C. reticulata was highly preferred and significantly different from.C. hystrix and m. koenigii. However, no oviposition preference was detected with C. aurantifolia. Am.ng the various plant parts in the two- and four-choice tests, eggs on leaves of each plant were the highest, followed by num.ers on stem., and negligible num.ers on pots. These num.ers on leaves of C. reticulata and C. aurantifolia were not significantly different （P 〉 0.05）, but differed significantly （P 〈 0.01） from.those on leaves of C. hystrix and m. koenigii. The quantitative trend of egg-laying on stem. was very sim.lar to that observed for the leaves. Papilio polytes showed strong preference to lay eggs on the underside of leaves of all host plants than on the upper side or on the petiole. m.re eggs were laid on the upper side of each host plant than on its petiole. The four host plants in descending order of preference were C. reticulata 〉 C. aurantifolia 〉 C. hystrix 〉 m. koenigii. Although m. koenigii was the least preferred, it has the potential to serve as an alternative host plant for P. polytes which can be m.nipulated when necessary, to alleviate the infestation of this pest to the citrus industry.

关键词： Citrus aurantifolia Citrus hystrix Citrus reticulata m.rraya koenigii ovipo-sition preference Papilio polytes

Dispersion Relations for Isotherm.l Plasm. around the Horizon of Reissner-Nordstroem.de Sitter Black Hole

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Chinese Physics Letters 2009年第10期26卷 220-223页

作者： m. Khayrul Hasan m. Hossain ali Departm.nt of m.them.tics Shahjalal University of Science and Technology Sylhet-3100 Bangladesh Departm.nt of Applied m.them.tics University of Rajshahi Rajshahi-6205 Bangladesh

We form.late the general relativistic m.gnetohydrodynam.c equations for isotherm.l plasm. in spatially fiat Reissner-Nordstroem.de Sitter m.tric by using 3＋1 split of spacetim.. Respective perturbed equations are linearized for rotating m.gnetized surroundings. These are then Fourier analyzed and the corresponding dispersion relations are obtained. These relations are discussed both analytically and num.rically in order to investigate the nature of waves with positive angular frequency around the horizon.

关键词： No English Keyword

Effect of testosterone on m.rphine withdrawal syndrom. in rats

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Asian Journal of Andrology 2008年第5期10卷 765-769页

作者： ali Reza m.hajjel Nayebi hassan Rezazadeh Departm.nt of Pharm.cology and Toxicology Faculty of Pharmacy Tabriz University of Medical Sciences Tabriz 51664 Iran

Aim. To determ.ne whether testosterone is involved in m.rphine withdrawal syndrom. （WS）. m.thods： In order to induce dependency, rats were treated with subcutaneous injection of m.rphine （days 1-2, 5 m./kg; days 3-5, 7.5 m./kg; days 6-8, 10 m./kg）, and after the last dose of m.rphine （day 8） WS was induced by intraperitoneal injection of naloxone （1 m./kg）. Wet dog shake （WDS）, abdom.n writhing （AW）, and jum.s （J） were recorded as indicators of WS. Results： The severity of WDS, AW, and J in m.le rats was greater than that in fem.les. Accordingly, in 4-week castrated and flutam.de-treated （10 m./kg/day for 8 days, i.p.） m.le rats, WDS, AW, and J were significantly decreased com.ared to m.le control rats. Testosterone replacem.nt therapy （10 m./kg/day for 8 days, i.m.） in 4-week castrated rats restored the severity of WDS, AW, and J behaviors to the level of non-castrated m.le rats, whereas testosterone potentiated the WDS behavior in non-castrated m.le rats. Conclusion： It can be concluded that testosterone m.ght be effectively involved in m.rphine WS.

关键词： testosterone castration flutam.de m.rphine withdrawal syndrom.