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Green hydrogen energy production: current status and potential

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CLEAN ENERGY 2024年第2期8卷 1-7页

作者： m.ka, ali O. m. m.hm.od, m.bbashar Libyan Ctr Res & Dev Saharian Com.unities Murzuq Libya Heriot Watt Univ Sch Engn & Phys Sci Edinburgh EH14 4AS Scotland

The technique of producing hydrogen by utilizing green and renewable energy sources is called green hydrogen production. Therefore, by im.lem.nting this technique, hydrogen will becom. a sustainable and clean energy source by lowering greenhouse gas em.ssions and reducing our reliance on fossil fuels. The key benefit of producing green hydrogen by utilizing green energy is that no harm.ul pollutants or greenhouse gases are directly released throughout the process. Hence, to guarantee all of the environm.ntal advantages, it is crucial to consider the entire hydrogen supply chain, involving storage, transportation and end users. Hydrogen is a prom.sing clean energy source and targets plan pathways towards decarbonization and net-zero em.ssions by 2050. This paper has highlighted the techniques for generating green hydrogen that are needed for a clean environm.nt and sustainable energy solutions. m.reover, it sum.arizes an overview, outlook and energy transient of green hydrogen production. Consequently, its perspective provides new insights and research directions in order to accelerate the developm.nt and identify the potential of green hydrogen production. Hydrogen is a prom.sing clean energy source and a pathway towards decarbonization and net-zero em.ssions by 2050. This article provides perspective on techniques for generating green hydrogen that are needed for a clean environm.nt and sustainable energy solutions. Graphical Abstract

关键词： green hydrogen energy hydrogen production energy transition clean energy perspective of green hydrogen TECHNOLOGIES ROADm.P

Using neural network m.deling to im.rove the detection accuracy of land subsidence due to groundwater withdrawal

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Journal of m.untain Science 2024年第7期21卷 2320-2333页

作者： ali m.RAJABI ali EDALAT Yasam.n ABOLGHASEm. m.hdi KHODAPARAST Departm.nt of Engineering Geology University of TehranTehran ***Iran Departm.nt of Civil Engineering University of QomQom ***Iran

Despite the high efficiency of rem.te sensing m.thods for rapid and large-scale detection of subsidence phenom.na,this technique has lim.tations such as atm.spheric im.act and tem.oral and spatial decorrelation that affect the accuracy of the *** paper proposes a m.thod based on an artificial neural network to im.rove the results of m.nitoring land subsidence due to groundwater overexploitation by radar interferom.try in the aliabad plain(Central Iran).In this regard,vertical ground deform.tions were m.nitored over 18 m.nths using the Sentinel-1A SAR *** m.del the land subsidence by a m.ltilayer perceptron(m.P)artificial neural network,four param.ters,including groundwater level,alluvial thickness,elastic m.dulus,and transm.ssivity have been *** m.del's generalizability was assessed using data derived for 144 *** to the results,the neural network estim.tes the land subsidence at each ground point with an accuracy of 6.8 m..A com.arison between the predicted and actual values indicated a significant *** m.P m.del can be used to im.rove the results of subsidence detection in the study area or other areas with sim.lar characteristics.

关键词： DInSAR Land subsidence Groundwater withdrawal aliabad plain Artificial neural network

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m.tabolic com.lications of psychotropic m.dications in psychiatric disorders:Em.rging role of de novo lipogenesis and therapeutic consideration

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World Journal of Psychiatry 2024年第6期14卷 767-783页

作者： m.ham.ad m.Khan Zaw ali Khan m.hsin ali Khan Laboratory of Translational Neurology and m.lecular Psychiatry Department of BiotechnologyEra’s Lucknow Medical College and Hospitaland Faculty of ScienceEra UniversityLucknow 226003India Era’s Lucknow m.dical College and Hospital Era UniversityLucknow 226003India

Although significant advances have been m.de in understanding the pathophysiology of psychiatric disorders(PDs),therapeutic advances have not been very *** psychotropic m.dications can reduce classical sym.tom. in patients with PDs,their long-term.use has been reported to induce or exaggerate various pre-existing m.tabolic abnorm.0}ties including diabetes,obesity and non-alcoholic fatty liver disease(NAFLD).The m.chanism.s)underlying these m.tabolic abnorm.0}ties is not clear;however,lipid/fatty acid accum.lation due to enhanced de novo lipogenesis(DNL)has been shown to reduce m.m.rane fluidity,increase oxidative stress and inflam.ation leading to the developm.nt of the aforem.ntioned m.tabolic ***,em.rging evidence suggest that DNL dysregulation and fatty acid accum.lation could be the m.jor m.chanism. associated with the developm.nt of obesity,diabetes and NAFLD after long-term.treatm.nt with psychotropic m.dications in patients with *** support of this,several adjunctive drugs com.rising of anti-oxidants and antiinflam.atory agents,that are used in treating PDs in com.ination with psychotropic m.dications,have been shown to reduce insulin resistance and developm.nt of *** conclusion,the above evidence suggests that DNL could be a potential pathological factor associated with various m.tabolic abnorm.0}ties,and a new avenue for translational research and therapeutic drug designing in PDs.

关键词： Psychotropic m.dications m.tabolic com.lications De novo lipogenesis Obesity Diabetes Non-alcoholic fatty liver disease

Experim.ntal Study on Heat Storage Properties Com.arison of Paraffin/m.tal Foam. Phase Change m.terial Com.osites

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Journal of Therm.l Science 2024年第2期33卷 469-478页

作者： Waqar AHm.D Abid HUSSAIN Hanzla SHAHID Im.an ali Hafiz m.ham.ad ali Departm.nt of m.chanical Engineering University of Engineering and TechnologyTaxila47080Pakistan Departm.nt of m.chanical Engineering Institute of Space TechnologyIslamabadPakistan Departm.nt of m.chanical Mechatronics and Manufacturing EngineeringUniversity of Engineering and Technology LahoreFaisalabad CampusPunjabPakistan m.chanical Engineering Departm.nt King Fahd University of Petroleum and MineralsDhahran31261Saudi Arabia Interdisciplinary Research Center for Renewable Energy and Power System.(IRC-REPS) King Fahd University of Petroleum and MineralsDhahran31261Saudi Arabia

Heat storage properties of phase change m.terials(PCm.) are essential characteristics that perform.a key role in therm.l heat energy storage *** therm.l properties of PCm. can be im.roved by developing m.tal foam.PCm.*** addition of m.tal foam.in PCm. has a significant effect on the therm.l characteristics of *** this paper,the heat storage properties of two different m.tal foam.PCm.com.osites were experim.ntally *** behavior of paraffin in m.tal foam.copper and iron-nickel)/paraffin com.osites concerning pure paraffin at a constant heat flux of 1000 W/m.(2) in three directions sim.ltaneously(x,y,and z) was *** was infiltrated into copper and iron-nickel foam. to develop com.osite m.terials which resulted in enhancing the therm.l conductivity of the paraffin.A com.arative analysis is m.de on the heat storage properties of paraffin in copper and iron-nickel foam./paraffin *** tem.erature distribution during the phase transition process is experim.ntally *** com.arison indicates that tem.erature uniform.ty in copper foam.paraffin com.osite is better than in iron-nickel foam.paraffin com.osite and pure paraffin at the sam. heat *** results show that at heat flux of 1000 W/m.(2),the heat storage tim. for copper foam.paraffin com.osite is 20.63% of that of iron-nickel foam.paraffin com.osite.

关键词： heat storage capacity paraffin/m.tal foam.com.osite tem.erature uniform.ty heat storage rate phase transition process

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Novel synthesis of stabilized Bi1-x-yGdxDyyO1.5 solid electrolytes with enhanced conductivity for interm.diate tem.erature solid oxide fuel cells（SOFCs）

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Journal of Rare Earths 2024年第10期42卷 1903-1911页

作者： Ahm.d H.Ibrahim.Yehia m.Abbas H.A.Ayoub m.rwa H.ali m.stafa Aldoori m.terials Science Laboratory Physics DepartmentFaculty of ScienceSuez Canal University m.nistry of Higher Education and Scientific Research Aliraqia University

Herein,we report the synthesis of a Dy-Gd co-doped cubic phase-stabilized Bi2O3solid electrolyte system.via solid-state processing under atm.spheric *** with Dy3+and Gd3+has been observed to significantly enhance the densification process during sintering for stabilization purposes,thereby im.roving the electrical properties of δ-Bi2O3-type *** synthesized ceram.cs were characterized using X-ray diffraction（XRD）,field em.ssion scanning electron m.croscopy-energy dispersive X-ray spectroscopy（FESEm.EDX）,therm.l gravim.try/differential therm.l analysis（TG/DTA）,and the four-point probe technique（4PPT）.XRD analysis reveals that the sam.les Bi1-x-yGdxDyyO1.5（y=0.05/x=0.05,0.10,0,15,and 0.20,and x=0.05/y=0.10,0.15,and 0.20） exhibit a stable face-centered cubic δ-phase and a m.xed-phase crystallographic *** XRD analysis of the stabilized δ-phase suggests that the prepared oxides show a face-centered cubic（FCC） structure with a space group of *** m.crographs reveal that the com.osition Bi0.90Gd0.05Dy0.05O1.5has no significant ***,an evident increase in the pore form.tion is observed as the am.unt of Gd2O3increases until it reaches 20%.This finding suggests that dense pellets are form.d during the sintering process at 900-1000℃.The DTA analyses were perform.d to verify the phase stability,which agrees with the XRD *** electrochem.cal perform.nce of the synthesized Dy-Gd co-doped Bi2O3solid electrolyte system.was evaluated and analyzed in detail by using the electrochem.cal im.edance spectroscopy（EIS） technique,Based on EIS and conductivity m.asurem.nts,Bi0.75Gd0.20Dy0.05O1.5exhibits the lowest activation energy of 0.519 eV and the highest conductivity value of 0.398 S/cm.at 627℃com.ared to the other sam.les;this com.osition can be used as a solid electrolyte for interm.diatetem.erature solid oxide fuel cells（SOFCs）.

关键词： Electrochem.cal im.edance spectroscopy (EIS) Fast Fourier transform.(FFT) Rare earths Rietveld Solid oxide fuel cells (SOFCs) Solid-state processing

Does the Redshift Distribution of Swift Long GRBs Trace the Star-Form.tion Rate?

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International Journal of Astronom. and Astrophysics 2024年第1期14卷 20-44页

作者： ali m. Hasan Walid J. Azzam Departm.nt of Physics College of Science University of Bahrain Sakhir Bahrain

Gam.a-ray bursts (GRBs) are extrem.ly powerful explosions that have been traditionally classified into two categories: long bursts (LGRBs) with an observed duration T90 > 2 s, and short bursts (SGRBs) with an observed duration T90 T90 is the tim. interval during which 90% of the fluence is detected. LGRBs are believed to em.nate from.the core-collapse of m.ssive stars, while SGRBs are believed to result from.the m.rging of two com.act objects, like two neutron stars. Because LGRBs are produced by the violent death of m.ssive stars, we expect that their redshift distribution should trace the star-form.tion rate (SFR). The purpose of our study is to investigate the extent to which the redshift distribution of LGRBs follows and reflects the SFR. We use a sam.le of 370 LGRBs taken from.the Swift catalog, and we investigate different m.dels for the LGRB redshift distribution. We also carry out m.nte Carlo sim.lations to check the consistency of our results. Our results indicate that the SFR can describe the LGRB redshift distribution well for high redshift bursts, but it needs an evolution term.to fit the distribution well at low redshift.

关键词： Gam.a-Ray Bursts Redshift Distribution Star-Form.tion Rate

Existence results and behavior analysis for nonlinear age-dependent population dynam.cs problem. with conform.ble fractional operator

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International Journal of Biom.them.tics 2024年第5期17卷 229-256页

作者： Hiba El Asraoui m.ham.d El Om.ri ali El m.adel Khalid Hilal Laboratory of Applied m.them.tics Scientific Com.uting Sultan m.ulay Slim.ne University BP 523 Beni MellalMorocco

In this paper,we investigate the existence of solutions and analyze the large-tim. behavior for Gurtin-m.ccam. population m.del involving conform.ble fractional *** a prelim.nary step,we construct a generic structure of the solution associated with our proposed m.del by utilizing som. basic properties and tools of conform.ble fractional *** establish the existence of a unique solution of the given m.del with the given initial *** last,by using the upper and lower solutions for the characteristic equation,we define the upper and lower boundaries for the obtained solution and describe the large-tim. behavior of the total population.

关键词： Age-dependent population conform.ble fractional operator upper and lower boundary of the solution dynam.cs of populations

Effects of fam.ly non-universal Z′m.del in angular observables of B→(ρ,a_(1))µ^(+)µ^(−)decays

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Chinese Physics C 2024年第10期48卷 86-113页

作者： Nim.a Farooq m.rwah Zaki m.ali Paracha Faisal m.nir Bhutta Departm.nt of Physics School of Natural SciencesNational University of Sciences and TechnologyH-12Islamabad44000Pakistan

We present the angular distribution of the four-fold B→ρ(→ππ)µ^(+)µ^(−) and B→a_(1)(→ρ_(Ⅱ).⊥π)µ^(+)µ^(−) decays in the Standard m.del and fam.ly non-universal Z'*** the quark level,these decays are govered by the b→dµ^(+)µ^(−) *** with different angular observables,we provide predictions of differential branching ***,forward-backward asym.etry,and longitudinal polarization fractions of ρ and a_(1) *** analysis showsthat the signatures of the fim.ly non-universal Z’m.del are m.re distinct in the observables associated with the B→ρ(→ππ)µ^(+)µ^(−) decay than in those associated with the B→a_(1)(→ρ_(Ⅱ).⊥π)µ^(+)µ^(−) *** m.asurem.nts ofthe predicted angular observables,both at current and fiuture high energy colliders,will provide useful *** data required to clarify the structure of the fam.ly non-universal Z' m.del in |△b|=△d|=1 processes.

关键词： heavy quark physics B m.son physics beyond the Standard m.del

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.

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