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| 1 | 阔叶猕猴桃叶片离体器官发生和植株再生(英文)显示文摘以阔叶猕猴桃(A ctinidia latifolia M err.)叶片为外植体,通过器官发生途径诱导形成不定芽,探讨了不同激素组合、暗培养时间以及不同浓度的蔗糖对叶片器官发生和植株再生的影响。结果表明,BW +0.1μm ol/L N AA +5μm ol/L Zeatin 附加20g/L 蔗糖,先进行21d 暗培养然后转到光下培养效果最好,6周后不定芽再生频率达91.67%,平均每个外植体再生芽数6.87个。再生芽生根良好,生根率可达100%。首次报道了阔叶猕猴桃的器官发生和植株再生,建立了叶片的高效再生体系,为今后的遗传转化研究奠定了基础。 | 毕静华 刘永立 Syed Asghar | 2005 | 果树学报2005,22,4: | 20 |
| 2 | Synthesis and Characterization of Nano-hydroxyapatite Powder Using Wet Chemical Precipitation Reaction显示文摘Hydroxyapatite(HA) nano-powder was synthesized via wet chemical technique in a used precipitation reaction,in which Ca(OH)_2 and H_3PO_4 were used as precursors.Deionised water was used as a diluting media for the reaction and ammonia was used to adjust the pH.The synthetic HA nano-powder has some medical applications such as a coating material in orthopaedic implants and in dental.HA powder has been studied at different temperatures from 100 to 800 ℃ to achieve the stoichiometric Ca/P ratio 1.667.The optimum temperature was found to be 600 ℃.Above this temperature,the HA powder decomposed to CaO.The crystallite size of HA powder was found to be in the range of 8.47—24.47 nm.The crystallographic properties were evaluated by X-ray diffraction,Fourier transform infrared spectroscopy,energy dispersive Xray spectroscopy and scanning electron microscopy.The results show that,high purity of nano-hydroxyapatite powders could be obtained at low temperatures,and the crystallinity,crystallite size and Ca/P ratio of the resulting nanoparticles were found to be dependent on the calcination temperature.When Ca/P ratio exceeded1.75,formation of CaO phase was observed. | Syed Sibte Asghar Abidi Qasim Murtaza | 2014 | Journal of Materials Science & Technology2014,30,4: | 8 |
| 3 | Regeneration mechanism of Toyonoka strawberry under different color plastic films显示文摘 | Qin Y H Zhang S L Syed Asghar | 2005 | Plant Science2005,168,: | 1 |
| 4 | Regeneration mechanism of Toyonoka strawberry under different color plastic films显示文摘 | Qin Y H Zhang S L Syed Asghar | 2005 | Plant Science2005,168,6: | 1 |
| 5 | Regeneration mechanism of Toyonoka strawberry under different color plastic films显示文摘 | Qin Yonghua Zhang Shanglong Syed Asghar | 2005 | Plant Science2005,,168: | 1 |
| 6 | Fractional Processing Based Adaptive Beamforming Algorithm显示文摘Fractional order algorithms have shown promising results in various signal processing applications due to their ability to improve performance without significantly increasing complexity.The goal of this work is to inves-tigate the use of fractional order algorithm in the field of adaptive beam-forming,with a focus on improving performance while keeping complexity lower.The effectiveness of the algorithm will be studied and evaluated in this context.In this paper,a fractional order least mean square(FLMS)algorithm is proposed for adaptive beamforming in wireless applications for effective utilization of resources.This algorithm aims to improve upon existing beam-forming algorithms,which are inefficient in performance,by offering faster convergence,better accuracy,and comparable computational complexity.The FLMS algorithm uses fractional order gradient in addition to the standard ordered gradient in weight adaptation.The derivation of the algorithm is provided and supported by mathematical convergence analysis.Performance is evaluated through simulations using mean square error(MSE)minimization as a metric and compared with the standard LMS algorithm for various parameters.The results,obtained through Matlab simulations,show that the FLMS algorithm outperforms the standard LMS in terms of convergence speed,beampattern accuracy and scatter plots.FLMS outperforms LMS in terms of convergence speed by 34%.From this,it can be concluded that FLMS is a better candidate for adaptive beamforming and other signal processing applications. | Syed Asghar Ali Shah Tariqullah Jan Syed Muslim Shah Ruhul Amin Khalil Ahmad Sawalmeh Muhammad Anan | 2023 | Computers, Materials & Continua2023,,7: | 0 |
| 7 | Integration of Sequence Stratigraphic Analysis and 3D Geostatistical Modeling of Pliocene–Pleistocene Delta,F3 Block,Netherlands显示文摘This research is focused on the analysis of the sequence stratigraphic units of F3 Block,within a wave-dominated delta of Plio–Pleistocene age.Three wells of F3 block and a 3D seismic data,are utilized in this research.The conventional techniques of 3D seismic interpretation were utilized to mark the 11 surfaces on the seismic section.Integration of seismic sequence stratigraphic interpretation,using well logs,and subsequent 3D geostatistical modeling,using seismic data,aided to evaluate the shallow hydrocarbon traps.The resulting models were obtained using System Tract and Facies models,which were generated by using sequential stimulation method and their variograms made by spherical method,moreover,these models are validated via histograms.The CDF curve generated from upscaling of well logs using geometric method,shows a good relation with less percentage of errors(1 to 2 for Facies and 3 to 4 for System Tract models)between upscaled and raw data that complements the resulted models.These approaches help us to delineate the best possible reservoir,lateral extent of system tracts(LST and/or HST)in the respective surface,and distribution of sand and shale in the delta.The clinoform break points alteration observed on seismic sections,also validates the sequence stratigraphic interpretation.The GR log-based Facies model and sequence stratigraphy-based System Tract model of SU-04-2 showed the reservoir characteristics,presence of sand bodies and majorly LST,respectively,mainly adjacent to the main fault of the studied area.Moreover,on the seismic section,SU-04-2 exhibits the presence of gas pockets at the same location that also complements the generated Facies and System Tract models.The generated models can be utilized for any similar kind of study and for the further research in the F3 block reservoir characterization. | Haris Ahmed KHAN Ali Asghar SHAHID Muhammad Jahangir KHAN Taher ZOUAGHI Maria Dolores ALVAREZ Syed Danial Mehdi NAQVI | 2023 | Acta Geologica Sinica(English Edition)2023,97,1: | 0 |