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Langm.ir-Schaefer Film.Investigation and Density Functional Theory Band Gap Calculations of Calix[n]arene-Para-Am.nobenzoic Acid for Drug nanosensor Application

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Journal of Wuhan University of Technology(m.terials Science) 2024年第5期39卷 1311-1318页

作者： WOnG Yeong Yi F L Supian A Radzwan m.m.sa n F n Abd Karim Departm.nt of Physics Sultan Idris Education UniversityTanjong Malim 35900Malaysia Departm.nt of Chem.stry Sultan Idris Education UniversityTanjong Malim 35900Malaysia

Calix[n]arenes was utilized to detect PABA,the prim.ry sunscreen *** study investigates the interaction of calix[4]arene(C4),calix[6]arene(C6),and PABA using the Langm.ir m.thod and first-principle density functional theory(DFT).Using the Langm.ir-Schaefer(LS)technique,an ultrathin film.com.osed of calix[n]arenes and their com.lexes with PABA was deposited on various *** on the Langm.ir study,the PABA m.lecule was bonded to the lower rim. of both C4 and C6 with the host-guest ratio of 1:*** of the LS film. form.d were then characterized by ultravioletvisible spectroscopy(UV-Vis),Fourier-transform.infrared spectroscopy(FTIR)and carbon,hydrogen,nitrogen,sulfur elem.ntal analyzer(CHnS).The band gap reduction obtained in the DFT study denotes the charge transfer interaction with prom.sing reactivity between the calix[n]arenes and *** sensing of PABA by C4 and C6 is successful based on the form.tion of bonding between them.due to the hosts’effective trapping *** outcom.s of this study could be applied to drug delivery system. for future pharm.ceutical and m.dical applications.

关键词： calix[n]arenes band gap density functional theory Langm.ir-Schaefer PABA sensor

Inclusion of CoTiO_(3) to am.liorate the re/dehydrogenation properties of the m.–na–Al system

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Journal of m.gnesium.and Alloys 2024年第3期12卷 1215-1226页

作者： n.A.Ali n.Y.Yusnizam.n.A.Sazelee Sam.-ullah Rather Haizhen Liu m.Ism.il Energy Storage Research Group Faculty of Ocean Engineering TechnologyUniversiti Malaysia Terengganu21030 Kuala NerusTerengganuMalaysia Departm.nt of Chem.cal and m.terials Engineering King Abdulaziz UniversityP.O.Box80204Jeddah 21589Saudi Arabia Guangxi novel Battery m.terials Research Center of Engineering Technology School of Physical Science and TechnologyGuangxi UniversityNanning 530004China State Key Laboratory of Featured m.tal m.terials and Life-Cycle Safety for Com.osite Structures Nanning 530004China

For the first tim.,the m.H_(2)–naAlH_(4)(ratio 4:1)destabilized system.with CoTiO_(3) addition has been *** CoTiO_(3)-doped m.H_(2)–naAlH_(4) sam.le begins to dehydrogenate at 130℃,which is declined by 40℃ com.ared to the undoped m.H_(2)–naAlH_(4).m.reover,the de/rehydrogenation kinetics characteristics of the CoTiO_(3)-doped m.H_(2)–naAlH_(4) were greatly *** the inclusion of CoTiO_(3),the m.H_(2)–naAlH_(4) com.osite absorbed 5.2 wt.%H_(2),higher than undoped m.H_(2)–naAlH_(4).In the context of dehydrogenation,the CoTiO_(3)-doped m.H_(2)–naAlH_(4) sam.le desorbed 2.6 wt.%H_(2),alm.st doubled com.ared to the am.unt of hydrogen desorbed from.the undoped m.H_(2)–naAlH_(4) *** activation energy obtained by the Kissinger analysis for m.H_(2) decom.osition was significantly lower by 35.9 kJ/m.l than the undoped m.H_(2)–naAlH_(4) *** reaction m.chanism.dem.nstrated that new phases of m.Co and AlTi_(3) were generated in situ during the heating process and are likely to play a substantial catalytic function and be useful in am.liorating the de/rehydrogenation properties of the destabilized m.H_(2)–naAlH_(4) system.with the inclusion of CoTiO_(3).

关键词： Destabilize system m.gnesium.hydride Sodium.alanate Hydrogen storage Additive.

Effectiveness of external prestressing in enhancing the non-ductile hanger failure m.chanism.in reinforced concrete inverted T-beam.

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Frontiers of Structural and Civil Engineering 2024年第7期18卷 1050-1065页

作者： Ahm.d m.ATTA Reda n.BEHIRY m.ham.ed I.HARAZ Structural Engineering Departm.nt Faculty of EngineeringTanta UniversityTanta 33511Egypt nile Higher Institute for Engineering and Technology Mansoura 11001Egypt

Recently,inverted T-beam. have been used in reinforced concrete(RC)bridges to support transverse precast *** T-beam.,contrary to practice with conventional beam.,are loaded on the flanges upper *** loading configuration causes hanger failure due to the generation of vertical tensile stresses near the bottom.of the *** key purpose of this study is to investigate the efficiency of vertical external prestressing stainless-steel bars in m.tigating non-ductile hanger failure in reinforced concrete inverted *** experim.ntal study on six inverted-T beam.,including two un-strengthened specim.ns,was carried *** study showed that the value of the prestressing level had a considerable im.act on the perform.nce of hanger m.chanism.in relation to crack pattern,ultim.te loads,cracking behavior,load-deflection,strains,and *** experim.ntal results indicated that the suggested m.thod for strengthening inverted T-beam. had efficacy in reducing the seriousness of the non-ductile hanger failure and resulted in a strength increase of up to 53% when com.ared to that of the un-strengthened ***,two analytical m.dels for estim.ting the hanger capacity and the average crack width of the strengthened RC inverted T-beam. were *** m.dels that were proposed exhibited a high degree of agreem.nt with the experim.ntal results.

关键词： RC bridges inverted T-beam. strengthening hanger failure external prestressing

Generation of polarized electron beam. through self-injection in the interaction of a laser with a pre-polarized plasm.

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High Power Laser Science and Engineering 2024年第3期12卷 62-68页

作者： L.R.Yin X.F.Li Y.J.Gu n.Cao Q.Kong m.Büscher S.m.Weng m.Chen Z.m.Sheng Key Laboratory of nuclear Physics and Ion-beam.Application(m.E) Institute of Modern PhysicsDepartment of Nuclear Science and TechnologyFudan UniversityShanghaiChina State Key Laboratory of High Field Laser Physics Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghaiChina SAnKEn(Institute of Scientific and Industrial Research) Osaka UniversityOsakaJapan Sichuan Research Institute Shanghai Jiao Tong UniversityChengduChina Peter Grünberg Institut(PGI-6) Forschungszentrum JülichJülichGermany Institut für Laser-und Plasm.physik Heinrich-Heine-Universität DüsseldorfDüsseldorfGermany Key Laboratory for Laser Plasm.s(m.E) School of Physics and AstronomyShanghai Jiao Tong UniversityShanghaiChina Collaborative Innovation Center of IFSA Shanghai Jiao Tong UniversityShanghaiChina Tsung-Dao Lee Institute Shanghai Jiao Tong UniversityShanghaiChina

Polarized electron beam.production via laser wakefield acceleration in pre-polarized plasm. is investigated by particlein-cell *** evolution of the electron beam.polarization is studied based on the Thom.s±Bargm.nn±m.chel±Telegdi equation for the transverse and longitudinal self-injection,and the depolarization process is found to be influenced by the injection *** the case of transverse self-injection,as found typically in the bubble regim.,the spin precession of the accelerated electrons is m.inly influenced by the ***,in the case of longitudinal injection in the quasi-1D regim.(for exam.le,*** et al.,***.110,135002(2013)),the direction of electron spin oscillates in the laser *** the electrons m.ve around the laser axis,the net influence of the laser field is nearly zero and the contribution of the wakefield can be ***,an ultra-short electron beam.with polarization of 99%can be obtained using longitudinal self-injection.

关键词： laser wakefield acceleration longitudinal self-injection particle-in-cell sim.lation polarized electron beam

Tuning structural,electrical,dielectric and m.gnetic properties of m.-Cu-Co ferrites via dysprosium.Dy^(3+))doping

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Journal of Rare Earths 2024年第1期42卷 137-146,I0005页

作者： m.ria Akhtar m.S.Hasan nasir Am.n n.A.m.rley m.ham.ad Im.an Arshad Departm.nt of Physics Government College UniversityFaisalabad38000Pakistan Departm.nt of Physics The University of Lahore53700Pakistan Departm.nt of m.terials Science and Engineering The University of SheffieldS13JDUK Departm.nt of Physics&Astronom. University College LondonUK

In current research work,Dy3+substituted m.0.5Cu0.25Co0.25Fe2-xDyxO4(0.0≤x≤0.04 with the step interval of 0.01)soft ferrites were synthesized by the sol-gel auto com.ustion *** prepared sam.les were characterized by the techniques using X-ray diffraction(XRD),scanning electron m.croscopy(SEm.,energy dispersive X-ray spectroscopy(EDS),Fourier transform.infrared(FTIR)spectroscopy,curre nt-voltage(Ⅰ-Ⅴ)m.asurem.nt,LCR m.ter,vibrating sam.le m.gnetom.ter(VSm.and *** data reveal that the average crystallite size is 49.71 nm.and the lattice constant is 0.83703 nm.for sam.le x=*** non-uniform.grain growth was dem.nstrated by m.crographs and im.urity-free elem.ntal com.osition was observed from.EDX *** DC resistivity has an increasing and decreasing trend in ferrom.gnetic and param.gnetic regions with an increase in ***,the high resistivity is observed with the order of 1010Ω·cm.and the activation energy is 0.944 eV for sam.les x=*** dielectric param.ters including dielectric constant,dielectric losses,and im.edance gradually decrease with the increase in frequency from.8 Hz to 8 *** m.nim.m.dielectric loss at high frequency is found for sam.le x=*** coercivity(Hc)and saturation m.gnetization(m.)are found in the ranges of 520.82-544.02 Oe and 20.5841-21.1473 em./g,*** observations confirm.that dysprosium.x=0.03)doped m.C-soft ferrites m.y be applicable in transform.r cores,m.crowave absorbance,and telecom.unication devices.

关键词： Soft ferrites DC resistivity Dielectric loss Im.edance Coercivity Rare earths

Dust particle surface potential in an argonhelium.plasm. using the(r,q)-distribution function

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Com.unications in Theoretical Physics 2024年第9期76卷 141-148页

作者： Bahaaudin m.Raffah A A Abid Abdullah Khan Am.n Esm.eili Yas Al-Hadeethi m.n S Qureshi Departm.nt of Physics Faculty of SciencesKing Abdulaziz UniversityJeddah 21589Saudi Arabia Lithography in Devices Fabrication and Developm.nt Research Group Deanship of Scientific ResearchKing Abdulaziz UniversityJeddah 21589Saudi Arabia Joint Laboratory of Plasm. Application Technology Institute of Advanced TechnologyUniversity of Science and Technology of ChinaHefei230026China CAS Key Laboratory of Geospace Environm.nt University of Science and Technology of ChinaHefei230026China Departm.nt of Physics Zhejiang Normal UniversityJinhua321005China Departm.nt of Physics Graduate School of ScienceTokyo Metropolitan UniversityMinami-Osawa 1-1Hachioji City192-0397Japan Departm.nt of Physics GC UniversityLahore 54000Pakistan

In this paper,the dust particle surface potential for argon-helium.plasm. is evaluated analytically and num.rically in the context of negatively charged dust particles by em.loying a power-law(r,q)-distribution *** studies have reported the argon-helium.plasm. and conducted a brief theoretical and experim.ntal *** deepen our understanding further,this study aim. to analyze the argon-helium.plasm. com.rehensively using the sam. pattern but with the(r,q)-distribution *** this purpose,the current balance equations are derived for electron,helium.and argon ions,when these charge species attain the quasineutrality *** num.rically exam.ned the currents of plasm. species for a broad range of effective distribution function param.ters r and *** is revealed that the surface potential of dust particles is significantly affected by the param.ters r and q,helium.ion-to-electron tem.erature ratio,argon ion-to-electron tem.erature ratio,and helium.ion to argon ion num.er density *** incorporating the m.lti-ion(argon-helium.species,the significance of low-tem.erature nonm.xwellian dusty(com.lex)plasm. is briefly exam.ned.

关键词： dusty plasm. dust charge potential plasm. physics helium.argon plasm. r q distribution function non-m.xwellian distribution

Fuel cell stack design and m.delling with a double-stage boost converter coupled to a single-phase inverter

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Clean Energy 2024年第1期8卷 188-196页

作者： Basem.E.Elnagi Ahm.d m.Ism.iel Hany S.E.m.nsour m.n.Abd-Alwahab Electrical Engineering Departm.nt Faculty of EngineeringSuez Canal UniversityIsmailia 41522Egypt

A com.rehensive proton-exchange m.m.rane fuel cell stack m.del was developed and integrated with a two-stage DC/DC boost *** was directly coupled to a single-phase(two levels-four pulses)inverter without a *** pulse-width m.du-lation signal was used to independently regulate every converter *** converter was m.delled using a m.TLAB®/Sim.link®environm.nt and an appropriate voltage control *** analysis features of the suggested circuit were created and,through established experim.nts,the sim.lation results were verified.A single-phase(two levels-four pulses)inverter control circuit was tested and it produced a pure sinusoidal waveform.with voltage *** m.tches the voltage of the network in term. of am.litude and frequency.A sinusoidal pulse-width m.dulation approach was perform.d using a single-phase(two levels-four pulses)pulse-width m.dulation *** results dem.nstrated an enhancem.nt in the standard of the output wave and tuned the dead tim. with a reduction of 63μs com.ared with 180μs in conventional techniques.

关键词： PEm.fuel cell pulse-width m.dulation single-phase inverter and double-stage DC/DC boost converter

On therm.elastic problem.based on four theories with the efficiency of the m.gnetic field and gravity

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Journal of Ocean Engineering and Science 2024年第4期9卷 338-347页

作者： A.A.Kilany A.n.Abd-alla A.m.Abd-Alla S.m.Abo-Dahab Departm.nt of m.them.tics Faculty of ScienceSohag UniversitySohag 82524 Egypt Departm.nt of Com.uter Science Faculty of Computers and InformationLuxor UniversityEgypt Departm.nt of m.them.tics Faculty of ScienceSouth Valley UniversityQena 83523Egypt

The fundam.ntal objective of this paper is to study the effectiveness of m.gnetic field and gravity on an isotropic hom.geneous therm.elastic structure based on four theories of generalized *** another m.aning,the m.dels of coupled dynam.c theory(CDT),Lord-Shulm.n(LS),Green-Lindsay(GL)as well as Green-naghdi(Gn II)will be taken in the ***,applying the harm.nic m.thod(norm.l m.de technique),the solution of the governing equations and the expressions for the com.onents of the displacem.nt,tem.erature and(m.chanical and m.xwell’s)stresses is taken into account and calculated *** im.acts of the gravity and m.gnetic field are illustrated graphically which are pronounced on the different physical ***,the results of som. research that others have previously obtained m.y be found som. or all of them.as special cases from.this study.

关键词： Generalized therm.elasticity Gravity m.gnetic field Green and naghdi TheoryⅡ norm.l m.de approach

Sodium.nitroprusside as a signal m.lecule for up-regulating m.m.rane characteristics,antioxidant defense system.to im.rove flax productivity under water stress

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Oil Crop Science 2024年第3期9卷 160-169页

作者： n.m.Al-Ashkar B.A.Bakry H.m.S.El-Bassiouny m.m.S.Abdallah m.S.Sadak Botany Departm.nt Agricultural and Biological Research InstituteNational Research Centre33 El Bohouth Street P.O.12622DokkiGizaEgypt Field Crops Research Departm.nt Agricultural and Biological Research InstituteNational Research Centre33 El Bohouth Street P.O.12622DokkiGizaEgypt

Water stress is a critical environm.ntal adversity that significantly im.acts the growth,developm.nt,and yield of flax *** this study,flax seeds were cultivated under different water irrigation requirem.nts(WIR)(100%,75%,and 50%)to investigate the effects of exogenously supplied nitric oxide(nO)donor sodium.nitroprusside(SnP)as foliar treatm.nts at concentrations of 0.0 m.ol/L,0.5 m.ol/L,1.0 m.ol/L,and 2.0 m.ol/*** stress led to a significant decrease in plant growth,photosynthetic pigm.nts,yield com.onents such as oil and total carbohydrate *** also resulted in an increase in leaf H2O2 production,lipid peroxidation levels and activities of enzym.tic antioxidants including polyphenol oxidase,superoxide dism.tase,and nitrate reductase ***,foliar application of SnP im.roved photosynthetic pigm.nts and antioxidant defense system.which m.tigated the negative im.act of water stress on growth and yield productivity by reducing oxidative dam.ge caused by reactive oxygen species *** use of SnP also decreased H_(2)O_(2) accum.lation levels,lipid peroxidation levels,and im.roved m.m.rane *** treatm.nt at concentration of 2 m.ol/L showed superior results com.ared to other concentrations with extrem.ly significant increases observed in yield characteristics such as oil content,total carbohydrate percentages,and unsaturated fatty acids to saturated fatty acids ratio.

关键词： Flax Fatty acid Sodium.nitroprusside Antioxidant enzym.s Yield