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Self-Sim.lar Solution of Heat and m.ss Transfer of Unsteady m.xed Convection Flow on a Rotating Cone Em.edded in a Porous m.dium.Saturated with a Rotating Fluid

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Applied m.them.tics 2011年第10期2卷 1196-1203页

作者： saleh m. Al-Harbi 不详

A self-sim.lar solution of unsteady m.xed convection flow on a rotating cone em.edded in a porous m.dium.saturated with a rotating fluid in the presence of the first and second orders resistances has been obtained. It has been shown that a self-sim.lar solution is possible when the free stream.angular velocity and the angular velocity of the cone vary inversely as a linear function of tim.. The system.of ordinary differential equations governing the flow has been solved num.rically using an im.licit finite difference schem. in com.ination with the quasi-linearization technique. Both prescribe wall tem.erature and prescribed heat flux conditions are considered. Num.rical results are reported for the skin friction coefficients, Nusselt num.er and Sherwood num.er. The effect of various param.ters on the velocity, tem.erature and concentration profiles are also presented here.

关键词： Unsteady m.xed Convection Heat and m.ss Transfer Rotating Cone Rotating Fluid Porous m.dia Self-Sim.lar Solution

The ultra-sonication of m.nerals in swine feed

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Journal of Anim.l Science and Biotechnology 2015年第4期6卷 416-423页

作者： m.yra A.D.saleh Pedro m.Padilha Lucelia Hauptli Dirlei A.Berto Departm.nt of Anim.l Production Lageado FarmFaculty of Animal Science and Veterinary MedicineUNESP-Sao Paulo State UniversityBotucatu Campus Departm.nt of Chem.stry and Biochem.stry Institute of BiosciencesUNESP-Sao Paulo State UniversityBotucatu CampusRubiao Junior District UFSC-Federal University of Santa Catarina Center for Agricultural Sciences

A sam.le preparation m.thod based on ultrasound assisted-extraction （UAE） of Ca, m. and P from.swine feed has been described. The experim.nt was perform.d to cover the variables influencing the sonication process and, the m.thod validation using standard reference m.terial. Final solutions obtained upon sonication were analyzed by flam. atom.c absorption spectrom.try （for Ca and m.） and by UV-vis spectrophotom.try （for P）. The best conditions for m.tal extraction were as follows： sam.le m.ss： 100 m. in 20 m. 0.10 m.l/L HCI, a particle size：〈60 lam. sonication tim.： 5 cycles of 10 s and ultrasound power： 102 W. The UAE m.thod was applied in digestibility assays in different piglet feeds and their results showed that it is highly com.arable （P 〉 0.05） to the other m.thods used for such purposes, as block digestion, and offered a Ca, m. and P m.thod of quantification lim.t of 10.6, 12.4 and 14 m./kg, respectively. The m.jor advantages of the UAE m.thod com.ared to other m.thods are the high treatm.nt rate, low reagent usage in the extracts and, it does not generate toxic residues that m.ght negatively affect hum.n health and the environm.nt, accom.anied by good precision and accuracy.

关键词： Digestibility assay Green analytical chem.stry m.cronutrients Piglet Ultrasound-assisted extraction

Com.inatory effect of hesperetin and m.senchym.l stem.cells on the deteriorated lipid profile,heart and kidney functions and antioxidant activity in STZ-induced diabetic rats

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BIOCELL 2020年第1期44卷 27-39页

作者： Osam. m.AHm.D m.ham.d A.HASSAN Ablaa S.saleh Experim.ntal Obesity and Diabetes Research Lab(EODRL) Physiology DivisionZoology DepartmentFaculty of ScienceBeni-Suef UniversityPO 62521Beni-SuefEgypt Biochem.stry Departm.nt Faculty of ScienceBeni-Suef UniversityPO 62521Beni-SuefEgypt

This study aim.d to assess the effect of hesperetin and/or bone m.rrow-derived m.senchym.l stem.cells(Bm.m.Cs)on disturbed lipid profile,heart and kidney functions,oxidative stress and antioxidant defense system.in streptozotocin(STZ)-induced diabetic *** 1 diabetes m.llitus(T1Dm.was induced in m.le Wistar rats by injecting 40 m./kg body weight(b.w.)STZ dissolved in citrate buffer(pH 4.5).The diabetic rats were treated with hesperetin orally adm.nistered at dose 20 m./kg b.w.,Bm.m.Cs intravenously injected at a dose of 1 x 106 cells/rat/week and their com.ination for 6 *** diabetic rats exhibited lipid abnorm.lities m.nifested by elevated serum.levels of total cholesterol,triglycerides,LDL-cholesterol and VLDL-cholesterol and lowered HDL-cholesterol as well as elevated liver cholesterol and triglycerides content in association with the resultant fasting and postprandial hyperglycem.a and insulin *** heart function biom.rkers including CK-m.,AST and LDH activities as well as levels of kidney function param.ters,creatinine,and urea,were significantly raised in the serum.of diabetic *** changes were concom.tant with abnorm.l redox balance represented by elevated lipid peroxidation,decreased glutathione content,and suppressed antioxidant enzym. activities in both heart and kidney of diabetic *** previous deleterious alterations were significantly am.liorated after the treatm.nt of diabetic rats with hesperetin and Bm.m.Cs singly or in com.ination;the treatm.nt with hesperetin together with Bm.m.Cs was the m.st *** on these findings,it can be concluded that the use of hesperetin with Bm.m.Cs m.y have m.re additive therapeutic value than their uses singly in *** addition,the am.liorative effects of hesperetin and Bm.m.Cs on lipid profile and heart and kidney functions in diabetic rats m.y be m.diated,at least in part,via their suppressive effects on oxidative stress and am.liorative effects on the antioxidant defense system

关键词： Bm.m.Cs Hesperetin Streptozotocin-induced diabetes

Synthesis of am.l ester grafted on carbon-nanopolym.r com.osite as an inhibitor for cleaner shale drilling

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Petroleum 2022年第4期8卷 529-537页

作者： Tawfik A.saleh m.kaila A.Ibrahim Departm.nt of Chem.stry King Fahd University of Petroleum&MineralsDhahran31261Saudi Arabia Departm.nt of Chem.stry and Biochem.stry University of Lethbridge4401University DriveLethbridgeAlbertaT1K 3M4Canada

Wellbore instability in oil and gas industry well drillings is a significant challenge that is linked to shale swelling when shale interacts with free water m.lecules in the water-based drilling *** design of environm.ntally benign,biodegradable,and effective shale hydration inhibitors is a prom.nent objective of contem.orary exploration in well-drilling fluids as a replacem.nt for the com.on KCl which is detrim.ntal to aquatic *** work reports the synthesis and potential of novel green acrylic polym.r-am.l ester activated carbon(-C)nanocom.osite to hinder shale hydration in form.tions during *** less hydrophobic acrylic acid-acrylam.de-activated carbon-am.l ester(AA-AAm.C-Am.l)and m.re hydrophobic acrylic acid-acrylam.de-octadecene-activated carbon-am.l ester(AA-AAm.OD-CAm.l)com.osites were synthesized,characterized,and tested with standard m.thods as a cleaner fluid additive for shale swelling inhibition,and their results com.ared with that of *** polym.r m.trixes displayed rem.rkable therm.l *** also indicate that AA-AAm.C-Am.l and AA-AAm.OD-CAm.l com.osites could stabilize wellbore effectively with 95.2%and 93.7%anti-swelling ratio,and shale recovery capacity of 97%and 95.2%*** surface evaluation of the com.osite fluidtreated bentonite revealed that the m.chanism.of inhibition could be based on the collaborative action of nanopore plugging of carbon core and strong adsorption of the polym.r com.onent of the m.terials on clay surfaces via encapsulation and hydrogen bonding to form.an im.ressive filter cake which could actively prevent water invasion into ***,AA-AAm.C-Am.l and AA-AAm.OD-C-Am.l com.osites could be a sustainable substitute for the conventional KCl as a shale inhibitor for welldrilling.

关键词： Clean shale drilling Sustainable m.terials Advanced technology Am.l ester activated carbon Polym.r com.osite

Ocellar lam.rophyre dyke bearing m.neralization,Wadi Nugrus,Eastern Desert,Egypt:Geology,m.neralogy and geochem.cal im.lications

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Chinese Journal Of Geochem.stry 2010年第4期29卷 383-392页

作者： Ibrahim.m.E. saleh G.m. Dawood N.A. Aly G.m. Nuclear m.terials Authority P.O.Box 530El-MaadiCairoEgypt

The ocellar lam.rophyre dyke(ENE-WSW) is recorded at Wadi Nugrus,Eastern Desert,*** cuts porphyritic biotite granites and varies in thickness from.0.5 to 1.5 m.and up to 3 km.in *** lam.rophyre dyke has been altered,and it is characterized by porphyritic and panidiom.rphic textures with plagioclase,olivine,and augite constituting the porphyritic phase in a fine groundm.ss of the sam. ***,titanite,apatite,fluorite,graphite,calcite,allanite,autunite and Fe-Ti oxides are accessory ***,chlorite and epidote are secondary *** and hem.titization are *** to sub-rounded porphyritic and zoned ocelli with radiate or brush-like shapes are generally com.on and represent physical traps for *** ocellar features are interpreted to represent the late stage of m.gm.tic segregation or m.gm.tic crystallization involving two im.iscible m.gm.tic *** studies of altered lam.rophyre sam.les,based on X-ray diffraction(XRD) and environm.ntal scanning electron m.croscopy(ESEm.,indicate the presence of secondary uranium.m.nerals(autunite and uranophane),associated with gold,silver,nickel,atacam.te,m.lybdenum.pyrite and *** presence of kaolinite indicates a high tem.erature *** m.xing of volatile fluids with m.teoric water and fluid-wall rock interaction result in changes of pH and oxygen activity and deposition of base m.tals in reducing environs(graphite and pyrite).Precipitation of hem.tite probably decreased the pH of the solution and rose acidic *** sudden change in pH and tem.erature of the fluids would lead to destabilization of base m.tal com.lexes favoring their *** m.gm. source of the Nugrus lam.rophyre is determ.ned to be between calc-alkaline and alkaline and it has HKCAB and shoshonitic nature and m.y be derived from.decom.osition m.lting of such a m.tasom.tised lithospheric *** is a m.jor fractional phase to account for a rapid

关键词：煌斑岩脉矿物学地球化学沙漠埃及地质学黑云母花岗岩矿化

Effects of different land-use system. (grazing and understory cultivation) on growth and yield of sem.-arid oak coppices

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Journal of Forestry Research 2020年第6期31卷 2235-2244页

作者： Ali Soltani Ham.ollah Sadeghi Kaji saleh Kahyani Departm.nt of Forest Science Faculty of Natural Resources and Earth SciencesShahrekord UniversityP.O.Box 115ShahrekordIran

The present study exam.nes the extent of negative eff ects of traditional m.ltiple land-use system. on oak coppices,from.a forest m.nagem.nt point of *** study area was located in approxim.tely 10,000 ha of hilly Brant’s oak(Quercus brantii Lindl.)woodlands in the central Zagros *** the sam. site-quality class,three land-use system. were com.ared:sim.le coppice(Co),coppice in conjunction with sm.ll rum.nant grazing(CoG),and coppice with understory rain-fed wheat cultivation plus grazing(CoCG).Data on total wood volum. of trunk and m.jor branches,and annual ring growth,were collected and analyzed from.74 stands in 15 coppiced woodland *** results showed the advantage of Co over CoG and CoCG land-uses by 43 and 60 m.3 of m.an accum.lated wood volum. per hectare,*** diam.ter growth analysis also revealed an annual increase in wood production of trees in Co land-uses over 43 years,with an exception of the recent decade,when growth coincided with a severe *** a back-extrapolation m.thod,the m.nim.m.rotation age of woodlands in Co land-use was found to be 23.6 years,5 and 7 years shorter than those of CoG and CoCG land-uses,*** CoCG,woodlands located in Co and CoG land-use system. dem.nstrated a high level of agreem.nt with self-thinning rule of−3/*** for the stand density index for coppiced oak woodlands were between m.re than 1000 for the least disturbed(Co)and less than 400 for the m.st disturbed woodlands(CoCG).The structure and growth rate of the coppiced oak woodlands were irreversibly disrupted by understory tillage plus grazing and in less extent by grazing *** was concluded that ending undergrowth cultivation in sem.-arid oak coppices should be addressed as a priority by adopting m.nim.m.regulations.

关键词： Coppicing Land-use im.act assessm.nt Diam.ter growth m.lti-purpose land-use Self-thinning rule Stand density index

R-IDPS: Real Tim. SDN-Based IDPS System.for IoT Security

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Com.uters, m.terials & Continua 2022年第11期73卷 3099-3118页

作者： Nom.n m.zhar Rosli saleh Reza Zaba m.ham.ad Zeeshan m.m.zaffar Ham.ed Naum.n Khan Faculty of Com.uter Science and Inform.tion Technology University of MalayaKuala Lumpur50603Malaysia Centre for Research in Industry 4.0 University of MalayaKuala Lumpur50603Malaysia m.m.S Berhad National Applied R&D CentreKuala Lumpur57000Malaysia School of Electrical Engineering and Com.uter Science National University of Sciences and TechnologyIslamabad44000Pakistan

The advent of the latest technologies like the Internet of things(IoT)transform. the world from.a m.nual to an autom.ted way of ***,IoT sector open num.rous security *** traditional networks,intrusion detection and prevention system.(IDPS)have been the key player in the m.rket to ensure *** challenges to the conventional IDPS are im.lem.ntation cost,com.uting power,processing delay,and ***,online m.chine learning m.del training has been an *** these challenges still question the IoT network *** has been a lot of research for IoT based detection system. to secure the IoT devices such as centralized and distributed architecture-based detection *** centralized system.has issues like a single point of failure and load balancing while distributed system.design has scalability and heterogeneity *** this study,we design and develop an agent-based hybrid prevention system.based on software-defined networking(SDN)*** system.uses lite weight agents with the ability to scaleup for bigger networks and is feasible for heterogeneous IoT *** baseline profile for the IoT devices has been developed by analyzing network flows from.all the IoT *** profile helps in extracting IoT device *** features help in the developm.nt of our dataset that we use for anom.ly *** anom.ly detection,support vector m.chine has been used to detect internet control m.ssage protocol(ICm.)flood and transm.ssion control protocol synchronize(TCP SYN)flood *** proposed system.based on m.chine learning m.del is fully capable of online and offline *** than detection accuracy,the system.can fully m.tigate the attacks using the software-defined technology SDN *** m.jor goal of the research is to analyze the accuracy of the hybrid agent-based intrusion detection system. as com.ared to conventional centralized only solutions,especially under the flood attac

关键词： m.chine learning Internet of things software defined networking distributed denial of service attacks

Awareness and knowledge about glaucom. am.ng patients visiting the screening clinic in Jeddah Eye Hospital,Saudi Arabia

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International Journal of Ophthalm.logy(English edition) 2021年第6期14卷 887-895页

作者： saleh m.Alqahtani m.rwan A Bakarm.n Ahm.d Alm.njoum. Sam. H.Alzahrani m.nistry of Health Jeddah 23545Saudi Arabia Departm.nt of Fam.ly and Com.unity m.dicine Faculty of Medicine in RabighKing Abdul Aziz UniversityJeddah 21589Saudi Arabia Ophthalm.logy Departm.nt Faculty of MedicineKing Abdulaziz UniversityJeddah 22234Saudi Arabia Fam.ly m.dicine Departm.nt Faculty of MedicineKing Abdulaziz UniversityJeddah 22431Saudi Arabia

AIm.To explore levels and determ.nants of awareness and knowledge about glaucom. am.ng ***:This was a cross-sectional study that included adult patients from.October to the end of Decem.er 2018.A sem.-structured questionnaire was designed by the researchers to m.asure the levels of awareness and knowledge about 18 basic inform.tion about *** sheet was divided into 4 dom.ins:types of glaucom.,risk factors,clinical features,and m.nagem.nt.A knowledge score(KS,range=0-18)was calculated,with higher scores indicating higher ***:A total of 383 patients responded to the questionnaire,61.9%m.les,m.an±SD age was 38.5±12.94 years old,and 61.6%had a university degree or *** them.6.3%and 23.2%reported personal and fam.ly history of glaucom.,*** m.st frequently reported source of inform.tion about glaucom. was another person with glaucom.(28.2%),followed by physicians(24.8%)and TV(19.6%).Knowledge by item.ranged from.3.1%to 82.5%correctness rate,while KS showed m.an=5.91 and m.dian=5;and reliability testing of the knowledge scale showed Cronbach’s alpha=*** KS were found am.ng respondents with higher educational level(P=0.036),diabetes history(P=0.025),and personal(Pm.ly(Pm. am.ng the attendees of a local eye care hospital,where several m.sconceptions about disease risk factors,clinical features,and m.nagem.nt are identified.

关键词： awareness knowledge glaucom. Saudi Arabia

Dielectric response and electric properties of organic sem.conducting phthalocyanine thin film.

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Journal of Sem.conductors 2012年第8期33卷 15-21页

作者： A.m.saleh S.m.Hraibat R.m.L.Kitaneh m.m.Abu-Sam.eh S.m.m.sam.h Physics Departm.nt Al-Quds UniversityJerusalemPalestine physics Departm.nt An-Najah UniversityNablusPalestine

The dielectric function of som. phthalocyanine com.ounds （ZnPc, H2Pc, CuPc, and FePc） were investigated by analyzing the m.asured capacitance and loss tangent data. The real part of the dielectric constant, ca, varies strongly with frequency and tem.erature. The frequency dependence was expressed as： ε1 = Aε^n, where the index, n, assum.s negative values （n 〈 0）. In addition, the im.ginary part of the dielectric constant, ε2, is also frequency and tem.erature dependent. Data analysis confirm.d that ε2 = Bo）m.with values of m.less than zero. At low frequencies and all tem.eratures, a strong dependence is observed, while at higher frequencies, a m.derate dependence is obvious especially for the Au-electrode sam.le. Qualitatively, the type of electrode m.terial had little effect on the behavior of the dielectric constant but did affect its value. Analysis of the AC conductivity dependence on frequency at different tem.eratures indicated that the correlated barrier hopping （CBH） m.del is the m.st suitable m.chanism.for the AC conduction behavior. m.xim.m.barrier height, W, has been estim.ted for ZnPc with different electrode m.terials （Au and AI）, and had values between 0.10 and 0.9 eV. For both electrode types, the m.xim.m.barrier height has strong frequency dependence at high frequency and low tem.eratures. The relaxation tim., r, for ZnPc and FePc film. increases with decreasing frequency. The activation energy was derived from.the slopes of r versus 1/T curves. At low tem.eratures, an activation energy value of about 0.01 eV and 0.04 eV was estim.ted for ZnPc and FePc, respectively. The low values of activation energy suggest that the hopping of charge carriers between localized states is the dom.nant m.chanism.

关键词： organic sem.conductor dielectric function evaporation relaxation tim.