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| 1 | K^+,Ca^(2+)和Mg^(2+)对不同水稻(Oryza sativa L.)基因型苗期耐盐性的影响显示文摘【目的】进一步探明盐胁迫条件下营养元素K+、Ca2+和Mg2+对苗期不同水稻基因型耐盐性的影响差异,为明确作物耐盐胁迫的生理机制、提高作物耐盐胁迫能力提供参考。【方法】于2009年1—4月在严格控制水、温、光和营养元素供应的国际水稻研究所人工气候室进行水培试验,比较研究营养液中K+、Ca2+和Mg2+浓度的变化对不同水稻基因型苗期耐盐性的影响。【结果】在盐胁迫条件下(100mmol·L-1NaCl),耐盐基因型(FL478和IR651)与盐敏感基因型(IR29和Azucena)相比,植株体内有较低的Na+含量和Na+/K+、Na+/Ca2+、Na+/Mg2+比,有较高的K+含量,这些都是耐盐基因型耐盐胁迫能力高于盐敏感基因型的内在原因。盐胁迫条件下提高营养液中Ca2+和Mg2+的含量(60mg·L-1),可显著降低植株体Na+含量和Na+/K+、Na+/Ca2+、Na+/Mg2+比,明显减轻盐胁迫的危害,增强水稻耐盐胁迫能力,且Ca2+处理的效果优于Mg2+处理;而提高营养液K+含量对以上指标的影响远远小于Ca2+处理和Mg2+处理,这也是K+处理对水稻耐盐性影响相对不明显的内在原因。【结论】K+、Ca2+和Mg2+在植株体内的含量及其与Na+的比值变化都会影响水稻苗期耐盐性;适当提高水稻生长环境的Ca2+和Mg2+浓度可以明显增强植株耐盐胁迫能力,营养元素Ca2+的效果比Mg2+明显;而K+对水稻耐盐性的影响相对不明显。 | 张振华 刘强 宋海星 荣湘民 Abdelbagi M.Ismail | 2010 | 中国农业科学2010，43，15： | 19 |
| 2 | 水稻生长、根系生理特性和ABA含量的基因型差异与耐盐性的关系显示文摘为进一步揭示不同基因型水稻耐盐性差异的生理机制,探明盐胁迫初期根部激素ABA对水稻耐盐性的调控机理。于2009年10月~2010年2月在严格控制水、温、光和营养元素供应的国际水稻研究所人工气候室进行水培试验。结果表明,盐胁迫条件下耐盐基因型(IR651)相对于敏感基因型(IR29)保持了更高的生物量,'稀释'了植株体内盐分离子的浓度而减轻盐胁迫。两水稻基因型盐胁迫条件下对盐分的总吸收量并无明显差异,IR651根部较强的耐盐性和较大的生物量可以储存更多的Na+,从而减少Na+向地上部的转运量。盐胁迫初期IR651根部ABA的大量合成是叶片蒸腾速率显著降低的主要原因,从而抑制了盐分离子的大量吸收,大大减轻了盐胁迫初期大量盐分离子吸收对植株造成的不可恢复性伤害。可见,盐胁迫条件下耐盐基因型较大的生物量、根的生理特性以及盐胁迫初期ABA的特有调控都大大增强了其耐盐胁迫性能,是耐盐基因型相对敏感基因型有更强耐盐胁迫能力的重要原因。 | 张振华 刘强 宋海星 荣湘民 Abdelbagi M.Ismail | 2011 | 植物营养与肥料学报2011，17，5： | 11 |
| 3 | Catalytic effect of SrTiO_3 on the hydrogen storage behaviour of MgH_2显示文摘The effects of Sr TiO_3 on the hydrogen storage properties of MgH_2 have been studied for the first time.The onset dehydrogenation temperature of the MgH_2-10 wt% SrTiO_3 is found to be 275 ℃, which is 55 ℃ lower as compared to the as-milled MgH_2. The composite is able to absorb 4.3 wt% of hydrogen in 60 min instead of 1.1 wt% for the as-milled Mg H_2. Meanwhile, the composite is able to release 5.3 wt% of hydrogen in 17 min compared to 1.9 wt% by the as-milled Mg H_2 at 320 ℃. The calculated Eaof the Mg H_2-10 wt% SrTiO_3 is 109 k J/mol, which is 26.3 kJ/mol lower than the calculated Eaof the as-milled MgH_2. The Sr TiO_3 is not decomposed during the ball milling and the re/dehydrogenation processes. The catalytic effect shown by the SrTiO_3 is owing to its ability to change the physical structure of the MgH_2 particles during the ball milling process. | M.S.Yahya M.Ismail | 2019 | Journal of Energy Chemistry2019，28，1： | 10 |
| 4 | Physiological Responses of Contrasting Rice Genotypes to Salt Stress at Reproductive Stage显示文摘Salinity is a major abiotic stress affecting plant growth and productivity. Considerable genetic variation is present in rice in response to salt stress, with higher sensitivity during early seedling and reproductive stage. In this study, physiological changes in leaves and developing panicles of rice genotypes (IR686, Sadri, Rc222, CSR28, IR670 and Pokkali) contrasting in salt tolerance at the reproductive stage were evaluated in greenhouse experiment under salt stress. The results showed that IR670 and the tolerant-check Pokkali maintained lower Na^+/K^+ ratio, less reduction in chlorophyll concentration, lower malondialdehyde (MDA) production, higher concentrations of reduced ascorbate (reduced AsA), higher proline accumulation and lower percentage reduction in pollen viability than the salt-sensitive genotypes under salt stress. The higher concentration of reduced AsA suggests an efficient ROS-scavenging system. Physiological measurements and pollen viability analysis revealed that Sadri (moderately tolerant at the seedling stage) is sensitive to salt stress at the flowering stage. The findings will be useful in breeding salt tolerant varieties at both seedling and reproductive stages by selecting appropriate genotypes and phenotypes. | Maria Elisa B.GERONA Marjorie P. DEOCAMPO James A.EGDANE Abdelbagi M.ISMAIL Maribel L. DIONISIO-SESE | 2019 | Rice science2019，26，4： | 9 |
| 5 | The effect of K2SiF6 on the MgH2 hydrogen storage properties显示文摘The catalytic effect of K2SiF6 on MgH2 was first timely studied.The MgH2+5 wt.%K2SiF6 was prepared via the ball milling technique.The catalyst had lessened the initial decomposition temperature by 134℃ and 48℃ as compared to both pristine and milled MgH2 samples,respectively.In 2 minutes,4.5 wt.%of hydrogen was absorbed(250℃)by the doped composite,which was 0.8 wt.%higher than the milled MgH2.Meanwhile,for the desorption kinetics(320℃,1 atm),the amount of desorbed hydrogen was increased by 2.4 wt.%and 2.3 wt.%for the first 10 and 20 minutes.Besides,contracting volume and Johnson-Mehl-Avrami models were used to analyse the kinetics sorptions.The decomposition activation energy calculated based on Kissinger equation was 114 kJ/mol.As for the active species,Mg2Si,MgF2 and KH were formed during the heating process.These active species are speculated to be responsible for the improvement of the hydrogenation properties of the composite. | M.Ismail M.S.Yahya N.A.Sazelee N.A.Ali F.A.Halim Yap N.S.Mustafa | 2020 | Journal of Magnesium and Alloys2020，8，3： | 6 |
| 6 | Improved hydrogen storage properties of MgH_2 catalyzed with K_2NiF_6显示文摘In this study, the hydrogen storage properties of MgH_2-X wt% K_2NiF_6(X = 5, 10, 15, 20, and 50) were investigated for the first time. From the analysis of the onset desorption temperature and isothermal de/absorption kinetics, it was shown that MgH_2+ 5 wt% K_2NiF_6sample has the best performance. The 5wt% doped sample started to release hydrogen at about 260 °C, which was a reduction of about 95 °C and 157 oC compared with the as-milled and as-received MgH_2. In addition, the de/absorption kinetics of the MgH_2+ 5 wt% K_2NiF_6 were also improved significantly compared to the un-doped MgH_2. The apparent activation energy for hydrogen desorption exhibited the decrement from 167.0 k J/mol for as-milled MgH_2 to 111.0 k J/mol with the addition of 5 wt% K_2NiF_6. Moreover, the X-ray diffraction spectra displayed the formation of new phases of KF, KH, Mg_2Ni and Mg_2NiH_4 by doping the K_2NiF_6with MgH_2 after the dehydrogenation and rehydrogenation processes. The scanning electron microscope results revealed that MgH_2 doped with 5 wt% K_2NiF_6demonstrated the smallest particle size compared to the as-received and as-milled MgH_2. It is believed that the formation of in situ active species of KF, KH, and Mg_2Ni could provide a synergetic catalytic effect in enhancing the hydrogen sorption properties of MgH_2. | N.N.Sulaiman N.Juahir N.S.Mustafa F.A.Halim Yap M.Ismail | 2016 | Journal of Energy Chemistry2016，25，5： | 5 |
| 7 | Advanced hydrogen storage of the Mg–Na–Al system:A review显示文摘A solid-state storage system is the most practical option for hydrogen because it is more convenient and safer.Metal hydrides,especially MgH_(2),are the most promising materials that offer high gravimetric capacity and good reversibility.However,the practical application of MgH_(2) is restricted by slow sorption kinetics and high stability of thermodynamic properties.Hydrogen storage performance of MgH_(2) was enhanced by introducing the Mg–Na–Al system that destabilises MgH_(2) with NaAlH_(4).The Mg–Na–Al system has superior performance compared to that of unary MgH_(2) and NaAlH_(4).To boost the performance of the Mg–Na–Al system,the ball milling method and the addition of a catalyst were introduced.The Mg–Na–Al system resulted in a low onset decomposition temperature,superior cyclability and enhanced kinetics performances.The Al_(12)Mg_(17) and NaMgH_(3) that formed in situ during the dehydrogenation process modify the reaction pathway of the Mg–Na–Al system and alter the thermodynamic properties.In this paper,the overview of the recent progress in hydrogen storage of the Mg–Na–Al system is detailed.The remaining challenges and future development of Mg–Na–Al system are also discussed.This paper is the first review report on hydrogen storage properties of the Mg–Na–Al system. | N.A.Ali M.Ismail | 2021 | Journal of Magnesium and Alloys2021，9，4： | 5 |
| 8 | Morpho-Physiological Changes in Roots of Rice Seedling upon Submergence显示文摘Submergence is a serious environmental condition that causes large loss in rice production in rain fed lowland and flood affected area. This study evaluated morphological and physiological responses of rice roots to submergence using two tolerant rice genotypes FR13A and Swarna-Sub 1 and two sensitive ones Swarna and IR42. The tolerant genotypes had higher survival rate and less shoot elongation but greater root elongation during submergence than the sensitive ones. After submergence,the tolerant genotypes also had higher root dry weight and more active roots than the sensitive ones.Tolerant genotypes exhibited less root injury, with less malondialdehyde production and slower electrolyte leakage after submergence. Tolerant genotypes also maintained higher concentrations of soluble sugar and starch in roots and shoots and higher chlorophyll retention after submergence than the sensitive ones.Our data showed that root traits such as root activity and root growth are associated with survival rate after submergence. This is probably accomplished through higher energy supply, and membrane integrity is necessary to preserve root function and reduce injury during submergence. These root traits are important for submergence tolerance in rice. | Liem T.BUI Evangelina S.ELLA Maribel L.DIONISIO-SESE Abdelbagi M.ISMAIL | 2019 | Rice science2019，26，3： | 3 |
| 9 | Numerical and experimental analysis for simulating fuel reactor in chemical looping combustor system显示文摘The greenhouse problem has a significant effect on our communities such as,health and climate.Carbon dioxide is one of the main gases that cause global warming.Therefore,CO2 capture techniques have been the focus of attention these days.The chemical looping combustion technique adopted the air reactor and fuel reactor to recycle heat energy.This study presents a numerical and experimental investigation on a fuel reactor in chemical looping combustor(CLC)system.The present numerical model is introduced by the kinetic theory of granular flow and coupled with gas–solid flow with chemical reactions to simulate the combustion of solids in the CLC.The k–εturbulent model was used to model the gas phase and the particle phase.The developed model simplify the prediction of flow patterns,particle velocities,gas velocities,and composition profiles of gas products and the distribution of heterogeneous reaction rates under the same operating conditions.The predicted and experimental results were compared according to the basis of determination coefficient(R2).In addition the results showed that there is a good agreement between the predicted and experimental data.The value of(R2)for CO,CO2 and CH4 was 0.959,0.925 and 0.969 respectively.This shows that the present model is a promising simulation for solid particle combustion and gives the power direction for the design and optimization of the CLC systems. | Tamer M.Ismail Lu Ding Khaled Ramzy MAbd El-Salam | 2020 | International Journal of Coal Science & Technology2020，7，3： | 2 |
| 10 | Ultrafast laser dynamics of metal organic frameworks/TiO_2 nano-arrays hybrid composites for energy conversion applications显示文摘Herein,we report the victorious synthesis of metal-organic frameworks(MOFs) on TiO_2 nanotubes(NTs)using a layer-by-layer(LbL) approach.Highly crystalline and homogenous thin films of MOFs were grown and characterized using XRD,SEM,FT-IR and UV/Vis spectroscopy.Moreover,the utilization of the MOF films as sensitizers was probed in bespoke Graetzel type liquid junction solar cells.The constructed cell performance revealed an I_(sc) of 1.16 mA cm^(–2),Vocof 0.63 V,FF of 0.33,and E_(ff) of 0.42%.Further,pumpprobe transient laser spectroscopy was performed to investigate the energy and charge transfer dynamics of the MOFs/TiO_2 NTs interface.The results indicated 86% injection efficiency.The ultrafast pump-probe spectroscopy allows the investigation of this process and the differences between MOFs.It also showed that the relaxation of the MOF chromophores is in competition with electron injection in the Ti O2 motif.Thus this study provides a new insight into electron transfer from photoexcited metal-organic frameworks(MOFs) into titanium dioxide. | Fatma M.Ismail Daniel O'Neil Tareq Youssef Souad A.Elfeky | 2019 | Journal of Energy Chemistry2019，28，2： | 1 |
| 11 | Assessment of coal gasification in a pressurized fixed bed gasifier using an ASPEN plus and Euler–Euler model显示文摘With the help of Aspen Plus,a two-dimensional unsteady CFD model is developed to simulate the coal gasification process in a fixed bed gasifier.A developed and validated two dimensional CFD model for coal gasification has been used to predict and assess the viability of the syngas generation from coal gasification employing the updraft fixed bed gasifier.The process rate model and the sub-model of gas generation are determined.The particle size variation and char burning during gasification are also taken into account.In order to verify the model and increase the understanding of gasification characteristics,a set of experiments and numerical comparisons have been carried out.The simulated results in the bed are used to predict the composition of syngas and the conversion of carbon.The model proposed in this paper is a promising tool for simulating the coal gasification process in a fixed bed gasifier. | Tamer M.Ismail Mingliang Shi Jianliang Xu Xueli Chen Fuchen Wang M.Abd El-Salam | 2020 | International Journal of Coal Science & Technology2020，7，3： | 1 |
| 12 | Ameliorating the re/dehydrogenation behaviour of MgH2 by zinc titanate addition显示文摘Magnesium hydride(MgH_(2))is the most feasible and effective solid-state hydrogen storage material,which has excellent reversibility but initiates decomposing at high temperatures and has slow kinetics performance.Here,zinc titanate(Zn_(2)TiO_(4))synthesised by the solid-state method was used as an additive to lower the initial temperature for dehydrogenation and enhance the re/dehydrogenation behaviour of MgH_(2).With the presence of Zn_(2)TiO_(4),the starting temperature for the dehydrogenation of MgH_(2)was remarkably lowered to around 290℃–305℃.In addition,within 300 s,the MgH_(2)–Zn_(2)TiO_(4)sample absorbed 5.0 wt.%of H_(2)and 2.2–3.6 wt.%H_(2)was liberated from the composite sample in 30 min,which is faster by 22–36 times than as-milled MgH_(2).The activation energy of the MgH_(2)for the dehydrogenation process was also downshifted to 105.5 k J/mol with the addition of Zn_(2)TiO_(4)indicating a decrease of 22%than as-milled MgH_(2).The superior behaviour of MgH_(2)was due to the formation of Mg Zn_(2),MgO and MgTiO_(3),which are responsible for ameliorating the re/dehydrogenation behaviour of MgH_(2).These findings provide a new understanding of the hydrogen storage behaviour of the catalysed-MgH_(2)system. | N.A.Ali N.A.Sazelee M.F.Md Din M.M.Nasef A.A.Jalil Haizen Liu M.Ismail | 2023 | Journal of Magnesium and Alloys2023，11，6： | 0 |
| 13 | Islands of stability and quasi-magic numbers for super- and ultra-heavy nuclei显示文摘In the framework of Strutinsky's approach,we calculated the shell and the residual pairing correction energies for 5569 even-even nuclei in the range 72≤Z≤282 and 96≤N≤540.Quasi-magic numbers and deformed islands of stability that reside in a range defined by Green's formula and the two-neutrons drip line are introduced.We present 36 quasi-magic proton and 53 quasi-magic neutron magic numbers that contribute to the formation of133 deformed islands of stability along the N-Z space.The quasi-magic proton and neutron magic numbers volatile as the mass number increases and other magic numbers take over.Consequently,the deformed islands of stability fail to exhibit a pattern along the search space covered. | M.Ismail A.Y.Ellithi A.Adel Hisham Anwer | 2016 | Chinese Physics C2016，40，12： | 0 |
| 14 | SARS-CoV-2 spike behavior in situ:a Cryo-EM images for a better understanding of the COVID-19 pandemic显示文摘Most recently in Nature Journal,Ke et al.thoroughly investigate the SARS-CoV-2 spike in situ by using cryo-electron microscopy(Cryo-EM)to reveal its different conformations,orientations,and distribution over the virion particles. | Alaa M.Ismail Abdo A.Elfiky | 2020 | Signal Transduction and Targeted Therapy2020，5，1： | 0 |
| 15 | Novel synthesis of cerium oxide nano photocatalyst by a hydrothermal method显示文摘Crystalline cubic cerium oxide nano particles have been synthesized from cerium(Ⅲ)nitrate(Ce(NO_(3))_(3).6H2_(O))and sodium hydroxide by a hydrothermal method.The effect of three different molar ratios of the NaOH precipitating agent on structural,optical,and photo catalytic activity was investigated.The synthesized cerium oxide nano particles were characterized by X-ray diffraction(XRD),a UV-vis spectrometer,scanning electron microscope(SEM),energy-dispersive X-ray spectroscopy(EDAX),Raman spectroscopy and X-ray photo electron spectroscopy(XPS).According to the findings,hydrothermally synthesized cerium oxide NPs have a high efficiency for photocatalytic degradation of methylene blue when exposed to UV light.Environmental water pollution is the major issue of the atmosphere.To get fresh water,humans could search the resources to purify the water in simple way and degradation is the one of the methods to purify salt water. | Fowziya Shaik Ali Faisal Al Marzouqi AAfroos Banu M.Ismail Fathima A.R.Mohamed Jahangir K.Mohamed Rafi A.Ayeshamariam | 2021 | Journal of Semiconductors2021，42，12： | 0 |
| 16 | Effects of AG1 and AG2 QTLs on Nonstructural Carbohydrate and Seed Management Options for Rice Seedling Growth and Establishment under Flooding Stress显示文摘Rice(Oryza sativa)plants acquired excess photosynthates in the form of nonstructural carbohydrates(NSCs)in their stems and grain.Despite keen interest in rice NSC,the dynamics of NSC accumulation,translocation and re-accumulation have not yet been well investigated.AG1 and AG2 QTLs associated with flooding tolerance through catalyzing starch into soluble sugar in germinating seeds.Here we conducted three experiments,greenhouse and field to lay the groundwork for large-scale diversity studies on grain NSC and some agronomic traits under direct-seeded rice(DSR)system,using elite lines incorporating AG1,AG2 and AG1-AG2 QTLs into the popular varieties PSB Rc82 and Ciherang-Sub1 along with the donors Kho Hlan On(AG1)and Ma-Zhan Red(AG2).In germinating seedlings,soluble sugars increased,while starch concentration decreased gradually especially in the tolerant checks and AG1-AG2 introgression lines under flooded soil.Soluble sugar accumulation in stem started to increase from the vegetative stage and peaked at the panicle initiation stage then gradually decreased towards the maturity stage.But Sub1-AG lines had higher sugar and starch concentrations at different growth stages than other genotypes in wet season 2016 and dry season 2017.Plant survival rate was positively correlated with the stem NSC at the early vegetative stage(21 days after sowing),and stem NSC was positively associated with plant height at different growth stages.Among the tested seeding rate,the most suitable seeding rate,4 g/m2 with shallow burial depth(0.5 cm),resulted in better seedling establishment,relatively higher seedling vigor index and higher leaf area index under flooding in DSR system.Introgression of AG1-AG2 QTLs had no any negative impact on nonstructural carbohydrate,germination rate,and growth and biomass production. | Satyen MONDAL M.Jamil Hasan Tofayel Ahmed M.Giashuddin Miah Pompe C.Sta Cruz Abdel M.ISMAIL | 2020 | Rice science2020，27，6： | 0 |
| 17 | Novel Adaptive Binarization Method for Degraded Document Images显示文摘Achieving a good recognition rate for degraded document images is difficult as degraded document images suffer from low contrast,bleedthrough,and nonuniform illumination effects.Unlike the existing baseline thresholding techniques that use fixed thresholds and windows,the proposed method introduces a concept for obtaining dynamic windows according to the image content to achieve better binarization.To enhance a low-contrast image,we proposed a new mean histogram stretching method for suppressing noisy pixels in the background and,simultaneously,increasing pixel contrast at edges or near edges,which results in an enhanced image.For the enhanced image,we propose a new method for deriving adaptive local thresholds for dynamic windows.The dynamic window is derived by exploiting the advantage of Otsu thresholding.To assess the performance of the proposed method,we have used standard databases,namely,document image binarization contest(DIBCO),for experimentation.The comparative study on well-known existing methods indicates that the proposed method outperforms the existing methods in terms of quality and recognition rate. | Siti Norul Huda Sheikh Abdullah Saad M.Ismail Mohammad Kamrul Hasan Palaiahnakote Shivakumara | 2021 | Computers, Materials & Continua2021，，6： | 0 |
| 18 | Bipolar tri-state resistive switching characteristics in Ti/CeO_x/Pt memory device显示文摘Highly repeatable multilevel bipolar resistive switching in Ti/Ce Ox/Pt nonvolatile memory device has been demonstrated. X-ray diffraction studies of Ce O2 films reveal the formation of weak polycrystalline structure. The observed good memory performance, including stable cycling endurance and long data retention times(> 104s) with an acceptable resistance ratio(~102), enables the device for its applications in future non-volatile resistive random access memories(RRAMs). Based on the unique distribution characteristics of oxygen vacancies in Ce Ox films, the possible mechanism of multilevel resistive switching in Ce Ox RRAM devices has been discussed. The conduction mechanism in low resistance state is found to be Ohmic due to conductive filamentary paths, while that in the high resistance state was identified as Ohmic for low applied voltages and a space-charge-limited conduction dominated by Schottky emission at high applied voltages. | M.Ismail M.W.Abbas A.M.Rana I.Talib E.Ahmed M.Y.Nadeem T.L.Tsai U.Chand N.A.Shah M.Hussain A.Aziz M.T.Bhatti | 2014 | Chinese Physics B2014，23，12： | 0 |
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