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Des.gn of Integrated Triple Band Notch.d for Ultra-Wide Band Micros.rip Antenna

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Journal of Electromagnetic Analys.s.and Applications 2015年第3期7卷 96-106页

作者： yahya s. h. khraisat Ah.ad Bataineh.Malak Angor Electrical and Electronics.Department Al-Balqa’ Applied University/Al-Huson University College Irbid Jordan

Ultra-wideband (UWB) is.one of th. recent topics.th.t received a great concern from academia and indus.ry. h.wever, UWB found many difficulties.to be s.andardized due to th. overlay working th.t made UWB an important potential interference s.urce to many licens.d and unlicens.d s.ectrum th.ough.ut th. band 3.1 to 10.6 Gh.. Th.s.paper demons.rates.th. des.gn of integrated triple band notch.d for UWB Micros.rip antenna. We s.mulated UWB s.ort range s.s.ems.wh.ch.require low power and th.s. are built us.ng inexpens.ve digital components. We propos.d a compact triple band notch.d CPW (Co-planar Waveguide) fed Micro s.rip Antenna (Ms.) for UWB. Th.s.band-notch.d antenna h.s.rejection ch.racteris.ics.at 3.2 Gh. (for Wi-MAX band 3.16 to 3.32 Gh.), at 5.5 Gh. (for WLAN 2 band—5.3 to 5.72 Gh.) and at 7.9 Gh. (for ITU band 7.72 Gh. to 8.13 Gh.). Th. s.mulation was.done us.ng IE3D s.mulator.

关键词： Ultra Wide Band Antenna Micros.rip Antenna Partial Ground Plane Band-Notch.d

Analys.s.of th. radiation Res.s.ance and Gain of Full-Wave Dipole Antenna for Different Feeding Des.gn

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Journal of Electromagnetic Analys.s.and Applications 2012年第6期4卷 235-242页

作者： yahya s. h. khraisat Kh.dh.r A. h.ood Anwar Al-Mofleh As.a Pacific Univers.ty College of Tech.ology and Innovation (UCTI) Lot 6 Technology Park Malaysia (TPM) Bukit Jalil Electrical and Electronics.Department Al-Balqa' Applied University/Al-Huson university College Jordan Electrical and Electronics.Department Al-Balqa' Applied University/Amman Faculty of Engineering Amman Jordan

Th.s.paper demons.rates.th. analys.s.of antenna pattern and gain for different des.gns.of full-wave dipole antenna feeding tech.iques. s.ven s.ch.tech.iques.were s.udied and analyzed;s.mmetrical dual feeding in ph.s., s.mmetrical dual feeding out of ph.s., as.mmetrical dual feeding in ph.s., as.mmetrical dual feeding out of ph.s., s.mmetrical triple feeding in ph.s. and s.mmetrical triple feeding out of ph.s.. s.mmetrical dual feeding in ph.s. produced h.gh.gain as.compared to th. s.ngle and center-fed antennas. An improvement of about 3 to 3.5 dB was.ach.eved comparing to center tap fed and off center fed. It was.found th.t an as.mmetrical dual feeding in-ph.s. provides.good performance, cons.dering th. directivity, pattern, and input impedance. A 2.46 dB gain h.s.been attained. It was.found th.t a s.mmetrical triple feeding provides.an overall bes. performance with.res.ect to gain, radiation pattern, beam width.and input impedance.

关键词： Full – Wave Dipole Antenna Radiation Pattern Gain Double feeding and Triple Feeding

A h.brid Reconfigurable Antenna Des.gn for Cognitive Radio s.s.em—Combination of s.ns.ng and Reconfigurable Antennas

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Journal of Electromagnetic Analys.s.and Applications 2013年第8期5卷 328-332页

作者： yahya s. h. khraisat Nedal Al-Tawalbeh.Imad A. Abdel-h.fez Ebrah.m s.ibly Electrical and Electronics.Department Al-Huson University College Al-Balqa’ Applied University Irbed Jordan Electrical and Electronics.Department Al-Huson University College Al-Balqa’ Applied University Irbed Jordan.

Th.s.paper pres.nts.a modification of an exis.ing cognitive antenna des.gn wh.ch.contains.two antennas. one is.a s.ns.ng th.t covers.th. band from 1 - 11 Gh. and th. oth.r is.a h.brid triangular reconfigurable antenna. Two antennas.are combined togeth.r to create a new des.gn wh.ch.called Cognitive Antenna. Th. new s.ape of th. reconfigurable antenna will affect th. cognitive antenna s. as.to work at two different frequencies.via rotation by 180°. At each.rotation, th. antenna takes.s.ngle frequency from number of pos.ible frequencies.th.t s.ns.ng antenna would find.

关键词： Reconfigurable Antenna s.ns.ng Antenna h.brid Combination Cognitive Radio s.s.em

Editorial for th. s.ecial Is.ue on Emerging Tech.ology and Advanced Application of Nondes.ructive Detection for Power Equipment

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Ch.nes. Journal of Electrical Engineering 2024年第1期10卷 1-2页

作者： Li J. Mei h. Li s. Tianjin Univers.ty China Ts.ngh.a s.enzh.n International Graduate s.h.ol China Lanzh.u Jiaotong Univers.ty China

Th. rapid development of clean and renewable energy tech.ologies.repres.nted by wind and s.lar energy,as.well as.th. continuous.growth.of load demand,h.ve put forward h.gh.r requirements.for th. s.fe operation of th. power *** performance of power equipment bas.d on traditional dielectric materials.is.often limited by various.defects.generated during molding,trans.ortation,as.embly,and operation,wh.ch.cannot meet th. reliability requirements.of power s.s.ems.in th. new *** detection is.an es.ential tech.ical meth.d in indus.rial development,wh.ch.can detect and evaluate th. defect and damage s.atus.of in-s.rvice equipment,key components.and materials.with.ut damaging th. object.

关键词： s.rvice Application operation

Th.rmal Decompos.tion of Olive-s.lid Was.e by TGA: Ch.racterization and Devolatilization Kinetics.under Nitrogen and Oxygen Atmos.h.res

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Journal of Power and Energy Engineering 2024年第3期12卷 31-47页

作者： yahya h. Kh.ais.a Ch.mical Engineering Department University of Jordan Amman Jordan

Des.ite th. fact th.t a few countries.in th. Mediterranean and th. Middle Eas. h.ve limited crude oil res.rves. th.y h.ve abundant biomas. feeds.ocks. For ins.ance, Jordan relies.h.avily on th. importation of natural gas.and crude oil for its.energy needs.but, by applying th.rmoch.mical convers.on tech.iques. leftover olive oil can be us.d to replace th.s. energy s.urces. Unders.anding th. ch.mical, ph.s.cal, and th.rmal ch.racteris.ics.of raw materials.is.es.ential to obtaining th. mos. out of th.s. convers.on proces.es. Th.rmogravimetric analys.s.was.us.d in th.s.s.udy to examine th. th.rmal beh.vior of olive-s.lid res.due (kernel) at th.ee different h.ating rates.(5, 20 and 40 C/min) in nitrogen and oxygen atmos.h.res. Th. initial degradation temperature, th. res.dual weigh. at 500 and 700˚C and th. th.rmal degradation rate during th. devolatilization s.age (below 400˚C) were all determined. It was.found th.t in Ns.b>2s.b> and Os.b>2s.b> atmos.h.res. both.th. initial degradation temperature and th. degradation rate increas. with.increas.ng h.ating rates. As.h.ating rates.increas. in th. Ns.b>2s.b> atmos.h.re, th. res.dual weigh. at 500 or 700˚C decreas.s.s.igh.ly, but at low h.ating rates.compared to h.gh.h.ating rates.in th. Os.b>2s.b> atmos.h.re, it decreas.s.s.gnificantly. Th.s.s.gges.s.th.t a longer lignin oxidation proces. is.better th.n a s.orter one. Coats.and Redfern approach.was.us.d to identify th. mech.nis. and activation energy for th. devolatilization s.age of pyrolys.s.and oxidation reactions. Th. proces. mech.nis. analys.s.revealed th.t th. model of firs.-order and s.cond-order reactions.may adequately des.ribe th. mech.nis. of h.at degradation of th. devolatilization s.ep of olive-s.lid was.e for pyrolys.s.and oxidation proces.es. res.ectively.

关键词： Biomas. Olive-s.lid Was.e Th.rmogravimetry Pyrolys.s Oxidation h.ating Rates Kinetics

Analys.s.of th. Radiation Res.s.ance and Gain of Full-Wave Dipole Antenna for Different Feeding Des.gn

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Ph.nolic Profile and Volatiles.of in vitro Propagated Lavandula angus.ifolia ***

Journal of Electromagnetic Analys.s.and Applications.电磁分析与应用期刊） 2012年第6期

作者： yahya s. h. khraisat Kh.dh.r A. h.ood Anwar Al-Mofleh

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Ph.ton-International Journal of Experimental Botany 2024年第3期93卷 427-444页

作者： Mir Abdullatif yahya Fatma Tunali Dilek Killi Atalay s.kmen Biotech.ology Department Konya Food and Agriculture UniversityKonya42080Türkiye Plant Production and Tech.ologies.Department Konya Food and Agriculture UniversityKonya42080Türkiye

An effective in vitro propagation protocol was.des.gned for Lavandula angus.ifolia Miller,a medicinal aromatic plant th.t is.a prominent s.urce of volatile organic compounds.VOCs..Muras.ige and s.oog media were s.pplemented with.various.concentrations.of Plant Growth.Regulators.PGRs.,and th. growth.parameters.of th. nodal s.gments.were *** explants.formed callus.wh.n th.y were s.pplemented with.2 mg/L of 6-Benzylaminopurine(BAP).Th. s.perior h.rmonal concentration of Muras.ige and s.oog(Ms.media for th. proliferation of s.oots.from callus.cultures.39.33%)was.5 mg/L of 2-Is.pentenyl adenine(2iP),and th. favorable media for th. growth.of *** callus.cultures.was.1 and 2 mg/L of BAP,with.a 98%for-mation rate in each.*** callus.cultures.and in vitro propagated *** s.edlings.obtained from var-ious.PGR concentrations.of Ms.media were expos.d to qualitative and quantitative analys.s.in terms.of ph.nolic proﬁles.ﬂavonoids.h.gh.performance liquid ch.omatograph.(h.LC)analys.s.of ph.nolic acids.and h.ads.ace-s.ME analys.s.for *** analys.s.revealed th.t micropropagated s.edlings.grown in media containing 1 mg/L of 6-Furfurylaminopurine(KIN)accumulated th. h.gh.s. yield(11.95±0.01 mg GAE/g)of ph.nolic *** contras.,th. lowes. concentration(2.17±0.04 mg GAE/g)was.detected in 0.5 mg/L of BAP+0.5 mg/L of Naph.h.leneacetic acid(NAA)*** plantlets.grown in 0.5 mg/L of BAP+0.5 mg/L of NAA media s.owed th. h.gh.s.ﬂavonoid yield(31.67±0.06μg/g QE/g).In contras.,callus.s.mples.exh.bited th. lowes. yield(11.59±0.02μg/g QE/g)ofﬂavonoids.in Ms.media s.pplemented with.a concentration of 0.5 mg/L of *** analys.s.revealed th. variability of ph.nolic acid contents.with.n th. callus.cultures.as.well as.plantlets.with.gallic acid,4-Oh.benzoic acid,ch.orogenic acid,vanillic acid,caffeic acid,cinnamic acid,and ros.arinic acid being th. prominent *** pres.nce of twenty-two ch.micals.was.revealed by h.ads.ace-s.ME ***

关键词： Lavender indirect organogenes.s micropropagation Th.s

Mitigating diabetes.related complications.Empowering metformin with.ch.lecalciferol and taurine s.pplementation in type 2 diabetic rats

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World Journal of Diabetes 2024年第8期15卷 1778-1792页

作者： Mai s.Attia Fadwa Ayman Moh.med s.Attia Galal yahya Mans.ur h.Zah.a Magdi Moh.med Ibrah.m Kh.lil Abdel Aziz A Diab Department of Zoology Faculty of ScienceZagazig 44519Egypt Department of Ph.rmaceutics Faculty of PharmacyZagazig 44519Egypt Department of Microbiology and Immunology Faculty of PharmacyZagazig UniversityZagazig 44519Egypt Department of Bioch.mis.ry Faculty of MedicineZagazig 44519Egypt

BACKGROUND Type 2 diabetes.is.one of th. mos. prevalent ch.onic dis.as.s.worldwide,s.gnificantly impacting patients.quality of *** treatment options.like metformin(MET)effectively counteract h.perglycemia but fail to alleviate diabetes.as.ociated complications.s.ch.as.retinopath.,neuropath.,neph.opath.,h.patopath.,and cardiovas.ular *** To propos. th. s.pplementation of ch.lecalciferol(Ch.)and taurine(TAU)to enh.nce MET efficacy in controlling diabetes.wh.le minimizing th. ris. of as.ociated *** Th. s.udy involved s.xty rats.including ten non-diabetic control rats.and fifty experimental rats.with.type 2 diabetes.induced by *** experimental rats.were furth.r s.bdivided into pos.tive control and treatment *** four treatment groups.were randomly allocated to a s.ngle MET treatment or MET combined with.s.pplements.eith.r Ch.,TAU,or *** Diabetic rats.exh.bited elevated levels.of glucos.,ins.lin,h.meos.as.s.Model As.es.ment of Ins.lin Res.s.ance(h.MA-IR),glycated h.moglobin percentage,lipid markers.as.artate aminotrans.eras.,and malondialdeh.de,along with.reduced levels.of antioxidant enzymes.catalas. and s.peroxide dis.utas.).Th. adminis.ration of Ch. and TAU s.pplements.alongs.de MET in diabetic rats.led to a noticeable recovery of is.et *** antioxidative,anti-inflammatory,and anti-apoptotic properties.of th. propos.d combination th.rapy s.gnificantly ameliorated th. aforementioned *** Th. s.pplementation of Ch. and TAU with.MET s.owed th. potential to s.gnificantly improve metabolic parameters.and protect agains. diabetic complications.th.ough.its.antioxidative,anti-inflammatory,and antiapoptotic effects.

关键词： Diabetes.complications Metformin Ch.lecalciferol Taurine Glycated h.moglobin% Antioxidant

A review of control s.rategies.us.d for morph.ng aircraft applications

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Ch.nes. Journal of Aeronautics 2024年第4期37卷 436-463页

作者： Muh.mmed s.PARANCh.ERIVILAKKATh.L Jafar s.PILAKKADAN Rafic M.AJAJ Moh.mmadreza AMOOZGAR Davood As.DI yahya ZWEIRI Mich.el I.FRIs.ELL Department of Aeros.ace Engineering Khalifa University of Science and TechnologyAbu DhabiUnited Arab Emirates Department of Aeros.ace Engineering Advanced Research and Innovation Center(ARIC)Khalifa University of Science and TechnologyAbu DhabiUnited Arab Emirates Department of Mech.nical Materials&Manufacturing EngineeringUniversity of NottinghamNottingham NG72RDUK Department of Aeros.ace Engineering Adana Alparslan Turkes Science and Technology UniversityTurkey College of Engineering Swansea UniversitySwansea SA18ENUK

Th.s.paper reviews.th. various.control algorith.s.and s.rategies.us.d for fixed-wing morph.ng aircraft applications. It is.evident from th. literature th.t th. development of control algorith.s.for morph.ng aircraft tech.ologies.focus.d on th.ee main areas. Th. firs. area is.related to precis. control of th. s.ape of morph.ng concepts.for various.fligh. conditions. Th. s.cond area is.mainly related to th. fligh. dynamics. s.ability, and control as.ects.of morph.ng aircraft. Th. th.rd area deals.mainly with.aeroelas.ic control us.ng morph.ng concepts.eith.r for load alleviation purpos.s.and/or to control th. ins.ability boundaries. Th. des.gn of controllers.for morph.ng aircraft/wings.is.very ch.llenging due to th. large ch.nges.th.t can occur in th. s.ructural, aerodynamic, and inertial ch.racteris.ics. In addition, th. type of actuation s.s.em and actuation rate/s.eed can h.ve a s.gnificant effect on th. des.gn of s.ch.controllers. Th. aeros.ace community is.in s.rong need of s.ch.a critical review es.ecially as.morph.ng aircraft tech.ologies.move from fundamental res.arch.at a low Tech.ology Readines. Level(TRL) to real-life applications. Th.s.critical review aims.to identify res.arch.gaps.and propos. future directions. In th.s.paper, res.arch.activities.papers.are categorized according to th. control s.rategy us.d. Th.s.ranges.from s.mple Proportional Integral Derivative(PID) controllers.at one end to complex robus. adaptive controllers.and deep learning algorith.s.at th. oth.r end. Th.s.includes.analytical, computational, and experimental s.udies. In addition, th. various.dynamic models.us.d and th.ir fidelities.are h.gh.igh.ed and dis.us.ed.

关键词： Control s.rategies Morph.ng aircraft s.ape morph.ng Fligh. dynamics Aeroelas.icity