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| 1 | 影响烤烟烟碱合成与代谢的因素及其机理分析显示文摘烟碱是影响烤烟烟叶质量的重要指标,其含量的高低影响烟叶制品的吸食质量与安全性。烤烟烟叶(尤其是上部叶)中烟碱含量过高已经成为提高其在工业上可用性的关键限制性因素,因此,烟碱是国内外烟草学者研究烟草的重要研究对象。目前,影响烟碱合成与代谢的因素主要可分为内因(遗传因素)和外因(农艺栽培措施和气候环境等)。文章结合实例综述了这些影响烤烟烟碱的因素并分析了其机理,为优质烟叶生产提供一定理论依据与参考。 | 谢志坚 涂书新 张嵚 李海蓝 韩丹 Muhammad Imtiaz 徐昌旭 刘光荣 罗华汉 | 2014 | 核农学报2014，28，4： | 34 |
| 2 | 转基因育种技术在菊花性状改良中的应用进展显示文摘自1989年发现了菊花对农杆菌浸染的敏感性,农杆菌介导转化法已成功应用于菊花花色、花期、株形、抗病虫及耐非生物胁迫等性状的改良中。从影响菊花遗传转化效率的农杆菌菌株类型、外植体选用、辅助添加剂的使用以及抗生素筛选等几方面阐述了菊花遗传转化技术研究的进展和应用现状,对菊花分子育种性状改良和重要功能基因发掘等研究进展进行综述,并对菊花转化效率改善途径的探索和环境友好型转基因新技术研发前景提出展望,以期为菊花分子育种提供参考。 | 成丽娜 魏倩 Muhammad Imtiaz 高俊平 洪波 | 2013 | 园艺学报2013，40，9： | 13 |
| 3 | A Review Featuring Fabrication, Properties and Applications of Carbon Nanotubes(CNTs) Reinforced Polymer and Epoxy Nanocomposites显示文摘Carbon nanotubes(CNTs) have long been recognized as the stiffest and strongest man-made material known to date. In addition, their high electrical conductivity has roused interest in the areas of electrical appliances and communication related applications. However, due to their miniature size, the excellent properties of these nanostructures can only be exploited if they are homogeneously embedded into light-weight matrices as those offered by a whole series of engineering polymers. In order to enhance their chemical affinity to engineering polymer matrices, chemical modification of the graphitic sidewalls and tips is necessary. The mechanical and electrical properties to date of a whole range of nanocomposites of various carbon nanotube contents are also reviewed in this attempt to facilitate progress in this emerging area. Recently, carbonaceous nano-fillers such as graphene and carbon nanotubes(CNTs) play a promising role due to their better structural and functional properties and broad range of applications in every field. Since CNTs usually form stabilized bundles due to van der Waals interactions, they are extremely difficult to disperse and align in a polymer matrix. The biggest issues in the preparation of CNTs reinforced composites reside in efficient dispersion of CNTs into a polymer matrix, the assessment of the dispersion, and the alignment and control of the CNTs in the matrix. An overview of various CNT functionalization methods is given. In particular, CNT functionalization using click chemistry and the preparation of CNT composites employing hyperbranched polymers are stressed as potential techniques to achieve good CNT dispersion. In addition, discussions on mechanical, thermal, electrical, electrochemical and applications of polymer/CNT composites are also included. | Sobia Imtiaz Muhammad Siddiq Ayesha Kausar Sedra Tul Muntha Jaweria Ambreen Iram Bibi | 2018 | Chinese Journal of Polymer Science2018，36，4： | 11 |
| 4 | 氨基酸肥料施用促进切花菊‘优香’养分吸收及品质优化显示文摘为研究不同施肥配比对切花菊‘优香’营养吸收和品质的影响,筛选出其品质达到最优的施肥配比,以切花菊‘优香’为试材,设置了5种有机-无机施肥配比,分别为农户常规、企业常规、企业常规减量、氨基酸施肥1和氨基酸施肥2,测定比较植株营养和品质相关指标。结果表明:施用氨基酸肥料能够促进切花菊营养吸收及品质优化,其中氨基酸处理1效果显著。在营养吸收方面,促进采前植株干物质积累,达15.1g/株,前期促进植株对氮的吸收,后期促进对磷和钾的吸收,氮、磷和钾含量在采前达258.9、27.0和473.3mg/株;在品质方面,能提使花芽分化完成时间提早2~5d;提高采收时花枝株高、茎粗和花序直径,分别达到127.4cm、6.3 mm和22.6 mm,增加70cm长的切花鲜重至56.7g,达到优级出口标准;延长采后瓶插寿命2~5d,达17d,减缓花朵前期开放速度和叶片衰老程度。因此建议在适量施入基肥与追施无机复合肥的基础上,增施氨基酸肥料。 | 欧阳琳 李春杰 夏鲁卿 刘枫 张黎黎 MUHAMMAD Imtiaz 洪波 高俊平 | 2015 | 中国农业大学学报2015，20，3： | 10 |
| 5 | 菊花花色嵌合花瓣的离体培养及植株再生显示文摘以菊花‘粉妆’粉色和其发生嵌合花色的花瓣为试材,研究了6-BA和NAA不同浓度配比对花瓣离体再生的影响,建立了花瓣外植体的再生体系,观察分析了花色嵌合花瓣再生植株的花色变异情况。结果表明:菊花品种‘粉妆’花瓣再生的最适配方为MS+6-BA2.0 mg/L+NAA1.0 mg/L,再生芽分化率达93.3%,单个外植体平均再生不定芽数为10.0个,采用1/2MS培养基,生根率和移栽成活率达100.0%。花瓣再生植株的花色发生广泛变异,粉色花瓣再生植株的花色呈现从白色到黄色多色变异,且粉色占的比例最高,但没有花色嵌合体出现;而嵌合花色的花瓣再生植株发生变异的花色更为丰富,从白色到橙红色均有分布,且与亲本相同或相似的花色占的比例最高,部分植株还可以保持花色嵌合性状,但嵌合的花色仅为白色与粉色的嵌合,嵌合花色形成率为4%;因此,菊花品种‘粉妆’经过组织培养可以部分保持嵌合花色。 | 魏曼曼 王江民 Muhammad Imtiaz 洪波 | 2014 | 北京林业大学学报2014，36，4： | 5 |
| 6 | Cancer models in preclinical research:A chronicle review of advancement in effective cancer research显示文摘Cancer is a major stress for public well-being and is the most dreadful disease.The models used in the discovery of cancer treatment are continuously changing and extending toward advanced preclinical studies.Cancer models are either naturally existing or artificially prepared experimental systems that show similar features with human tumors though the heterogeneous nature of the tumor is very familiar.The choice of the most fitting model to best reflect the given tumor system is one of the real difficulties for cancer examination.Therefore,vast studies have been conducted on the cancer models for developing a better understanding of cancer invasion,progression,and early detection.These models give an insight into cancer etiology,molecular basis,host tumor interaction,the role of microenvironment,and tumor heterogeneity in tumor metastasis.These models are also used to predict novel can-cer markers,targeted therapies,and are extremely helpful in drug development.In this review,the potential of cancer models to be used as a platform for drug screening and therapeutic discoveries are highlighted.Although none of the cancer models is regarded as ideal because each is associated with essential caveats that restraint its application yet by bridging the gap between preliminary cancer research and transla-tional medicine.However,they promise a brighter future for cancer treatment. | Humna Sajjad Saiqa Imtiaz Tayyaba Noor Yusra Hasan Siddiqui Anila Sajjad Muhammad Zia | 2021 | Animal Models and Experimental Medicine2021，4，2： | 5 |
| 7 | 乳液催化剂存在下空气辅助甲酸氧化法使油品脱硫(英文)显示文摘Catalytic oxidative desulfurization(ODS) of model oil and commercial oil samples was investigated using an air-assisted performic acid oxidation system with a phase transfer or emulsion catalyst comprising a quaternary ammonium salt-based heteropolyoxometalate.Different emulsion catalysts with a Keggin type heteroployoxometalate anion(containing W,Mo,and V) and cetyltrimethylammonium bromide cation were prepared and characterized by X-ray fluorescence,Fourier transform infrared spectroscopy,and scanning electron microscopy.[C16H33N(CH3)3]3[PW9Mo3O40] was the most effective catalyst in the current oxidation system,which reduced the sulfur content of the model oil from 1275 μg/g to 57 μg/g.The reactivity order of different model sulfur compounds was thiophene < dibenzothiophene < 4,6-dimethyldibenzothiophene. The ODS of model sulfur compounds followed first order kinetics with apparent activation energy from 29 to 27 kJ/mol.The catalysts also performed efficiently in the ODS of the industrial oil samples,including untreated naphtha,light gas oil,heavy gas oil,and Athabasca oil sands derived bitumen,for which sulfur removal rates were 83%,85%,68% and 64%,respectively. | Ahmad Imtiaz Ahmad Waqas Ishaq Muhammad | 2013 | 催化学报2013，34，10： | 4 |
| 8 | Simultaneous operation of dibenzothiophene hydrodesulfurization and methanol reforming reactions over Pd promoted alumina based catalysts显示文摘In the current study simultaneous reactions of hydrodesulfurization(HDS) of dibenzothiophene(DBT) and reforming of methanol in a micro-autoclave reactor were studied over bi-metallic(Co-Mo/Al2O3 and Ni-Mo/Al2O3) and tri-metallic(Pd-Co-Mo/Al2O3 and Pd-Ni-Mo/Al2O3) catalyst systems which were prepared by incipient impregnation method.In situ hydrogen utilization and low Pd loadings were the major targets of this study.For comparison purpose,catalytic activity was separately determined for both the methanol reforming and HDS of DBT reactions as well.Ni based catalysts were confirmed with better activity than Co ones for both the reactions with Pd promoted ones ranking at the top i.e.Pd-Ni-Mo/Al2O3 > Ni-Mo/Al2O3 > Pd-Co-Mo/Al2O3 > Co-Mo/Al2O3 where Pd-Ni-Mo/Al2O3 showed 91% DBT conversion at 380 ℃ and 12 h reaction time.Some of the selected organic additives on catalytic activity were tested for their effect toward HDS reaction which was unique with close relation to their chemical nature.Reaction products were quantitatively and qualitatively analyzed via HPLC and GC-MS techniques respectively which helped in elucidating reaction mechanism. | Muhammad Yaseen Muhammad Shakimllah Imtiaz Ahmad Ata Ur Rahman Faiz Ur Rahman Muhammad Usman Rauf Razzaq | 2012 | 燃料化学学报2012，40，6： | 3 |
| 9 | Recent Insights into Signaling Responses to Cope Drought Stress in Rice显示文摘Drought is one of the hot topics needing urgent attention in the current era of climate change.It massively disturbs the rice growth and productivity and is becoming a serious threat.The drought avoidance strategies in rice include stomatal closure,cellular adaptation and changes in root development.Moreover,the endogenous plant hormones(abscisic acid and jasmonic acid)and reactive oxygen species have paramount importance in drought tolerance in rice.The drought tolerance induces modification in biochemical,molecular and physiological properties of plants.At the molecular level,expression of several transcription-factors is modulated which further determine the activation of drought responsive gene families.Mitogen activated protein kinases and Ca signaling pathways initiate an array of signaling cascade for mediating the gene expression in rice.Approaches,conventional breeding methods combined with modern emerging techniques such as genetic engineering,to improve rice drought tolerance were discussed.This review provided recent insights into major regulatory factors against drought stress,signaling mechanisms and molecular engineering strategies(including conventional transgenic and recent genome editing approaches)to induce drought tolerance in rice. | Muhammad Mahran ASLAM Muhammad Abdul Rehman RASHID Mohammad Aquil SIDDIQUI Muhammad Tahir KHAN Fozia FARHAT Shafquat YASMEEN Imtiaz Ahmad KHAN Shameem RAJA Fatima RASOOL Mahboob Ali SIAL ZHAO Yan | 2022 | Rice science2022，29，2： | 2 |
| 10 | Neuro-heuristic computational intelligence for solving nonlinear pantograph systems显示文摘本文提出了一种启发式神经网络计算平台,用于解决基于不同阶数泛函微分方程的非线性受电弓系统(Pantograph systems based on functional differential equations,P-FDEs)中的初值问题(Initial value problems,IVPs)。该方案利用了前馈人工神经网络(Artificial neural networks,ANNs)、基于遗传算法(Genetic algorithms,GAs)的进化计算技术,以及内点技术(Interior-point technique,IPT)。通过设定一个无监督学习误差,针对完全和不完全满足初始条件两种情况,利用ANNs创建了系统的两种数学模型。采用GA–IPT混合算法,对ANN模型的设计参数进行了优化。在GA–IPT中,GA是有效的全局搜索工具,IPT则用于快速的局部收敛。针对三种不同类型的1–3阶P-FDEs的IVPs对该方案进行了测试。通过对比现有的精确解,确认了该方案的正确性。通过采用不同数量神经元的ANN模型进行了大量的数值实验,进一步验证了该方案的准确性和收敛性。 | Muhammad Asif Zahoor RAJA Iftikhar AHMAD Imtiaz KHAN Muhammed Ibrahem SYAM Abdul Majid WAZWAZ | 2017 | Frontiers of Information Technology & Electronic Engineering2017，18，4： | 1 |
| 11 | A Fuzzy Controller for Lower Limb Exoskeletons during Sit-to- Stand and Stand-to-Sit Movement Using Wearable Sensors 显示文摘 | Sharif Muhammad Taslim R Norhafizan A Imtiaz Ahmed C | 2014 | Sensors ( 14248220)2014，14，3： | 1 |
| 12 | Dynamic Stability Improvement of Decentralized Wind Farms by Effective Distribution Static Compensator显示文摘Dynamic instability of decentralized wind energy farms is a major issue to deliver continuous green energy to electricity consumers.This instability is caused by variations of voltage and frequency parameters due to intermittencies in wind power.Previously,droop control and inverter-based schemes have been proposed to regulate the voltage by balancing reactive power,while inertial control,digital mapping tech-nique of proportional-integral-differential(PID)controller and efficiency control strategy have been developed to regulate the frequency.In this paper,voltage stability is improved by a new joint strategy of distribution static compensator(DSTATCOM)six-pulse controller based reactive power management among decentralized wind turbines and controlled charging of capacitor bank.The frequency stability is ensured by a joint coordinated utilization of capacitor bank and distributed wind power turbines dispatching through a new DSTATCOM six-pulse controller scheme.In both strategies,power grid is contributed as a backup source with less priority.These new joint strategies for voltage and frequency stabilities will enhance the stable active power delivery to end users.A system test case is developed to verify the proposed joint strategies.The test results of the proposed new schemes are proved to be effective in terms of stability improvement of voltage,frequency and active power generation. | Muhammad Naveed Naz Saqif Imtiaz Muhammad Kamran Liaquat Bhatti Waseem Qaiser Awan Muhammad Siddique Ashfaq Riaz | 2021 | Journal of Modern Power Systems and Clean Energy2021，9，3： | 1 |
| 13 | Relative weight--age in textbook and examination of secondary school chemistry-- implications for selective study among students显示文摘 | Akhtar Hussain Muhammad Amir Hashmi Syed Imtiaz Hussain Naqvi Shafqat Naeem Akhtar | 2010 | Procedia Social and Behavioral Sciences2010，2，： | 1 |
| 14 | Multiprocessor scheduling in a genetic paradigm显示文摘 | Imtiaz Ahmad Dhodhi Muhammad K | 1996 | Parallel Computing1996，22，： | 1 |
| 15 | 成年人屈光不正的发病率:以医院为基础的研究(英文)显示文摘目的:以医院为基础,调查成年人群屈光不正的发病率。方法:2008-06/2008-12,海德拉巴Liaquat大学眼科医院第三转诊中心,所有受试者均进行详细的眼科检查,记录其最佳矫正视力。以主观折射为基础检查屈光状态。只记录每位受试者的右眼。远视定义为等量球镜>+0.5屈光度(DS),正视定义为等量球镜介于-0.50至+0.50DS之间,近视定义为等量球镜<-0.50DS,等量球镜≤-5.00DS为高度近视。以负的柱镜矫正散光,散光定义为任何轴位的柱镜度数<-0.50屈光度(DC)。结果:8400名门诊患者参与调查,年龄20~60岁之间,男女比例61∶39,包括农村和城市人口。67%的患者完成了高中教育。8400位患者中,2719(32.37%)位的最佳矫正视力≥20/40,其余5681(67.63%)位由于眼前后节的疾病最佳矫正视力<20/40,排除本研究。2719位患者中,1065(39.17%)位患者的右眼为有晶状体眼,占8400位接受检查者的12.68%,剩余1654(60.83%)位为人工晶状体眼,结果分析只包括最近6mo内总接诊患者的12.68%(1065位有晶状体眼屈光不正患者)。590(55.4%的有晶状体眼)位男性和475(44.6%)女性,远视300位(28.2%的有晶状体眼),近视690位(64.8%的有晶状体眼),近视的发病率岁年龄增长显著增加。高度近视占受试人群的7%(75)。405位(38.03%)患者散光度数<0.5DC,包括195位(48.15%)男性和210(51.85%)女性。结论:屈光不正是一个重要的公众健康问题,影响视功能及日常活动。最佳视功能应包括未校正和校正后的屈光不正。 | Ashok Kumar Narsani Muhammad Muneer Quraishi Mahtab Alam Khanzada Shafi Muhammad Jatoi Imtiaz Gilal | 2009 | 国际眼科杂志2009，9，7： | 1 |
| 16 | Multiprocessor Scheduling in a Genetic Paradigm显示文摘 | Imtiaz Ahmad Muhammad K | | Parallel Computing0，1996，： | 1 |
| 17 | Tillage and nitrogen manage- ment impact on maize显示文摘 | Imtiaz A Jan M T Muhammad A | 2010 | Sarhad Journal of Agriculture2010，26，： | 1 |
| 18 | D-ISODATA:a distributed algorithm for unsuper- vised classification of remotely sensed data on network of workstations显示文摘 | Muhammad K D John A S Imtiaz A | 1999 | Journal of Parallel and Distributed Computing1999，52，2： | 1 |
| 19 | Evaluation of different formulations of IGRs against Aedes albopictus and Culex quinquefasciatus(Diptera:Culicidae)显示文摘Objective: To test the relative efficacy of pyriproxyfen and methoprene on mortality,deformity, inhibition and emergence to adult stages of Culex quinquefasciatus and Aedes albopictus.Methods: Serial dilutions(0.01–0.05 mg/L) of methoprene, pyriproxyfen 0.5 water dispersible granules(WDG) and pyriproxyfen 1.0 WDG were used to assess mortality and inhibition of 3rd instar larvae of Aedes albopictus and Culex quinquefasciatus. Each concentration and control was replicated four times in completely randomized design.Data on larval mortality, growth inhibition, deformities and adult's emergence was recorded weekly. On the basis of best comparative performance, the efficacy of pyriproxyfen 1.0 WDG at 0.1 g/m3 was also tested in the field by collecting treated water samples monthly for 1–6 months after field application. Twenty five 3rd instar larvae of Aedes and Culex spp. of the same cohorts were used for bioassays and compared with larvae in control cups containing 1 L of untreated tap water.Results: Results revealed variations in fatality of different insect growth regulators(IGRs) to the 3rd instar larvae of Culex and Aedes mosquitoes. Among the IGRs, pyriproxyfen 1.0 WDG was found best that exhibited significantly high emergence inhibition against Culex and Aedes spp. Based on the results, the IGRs were classified in terms of the tested parameters in order of pyriproxyfen 1.0 WDG > pyriproxyfen 0.5WDG > methoprene. In case of field studies, pyriproxyfen 1.0 WDG, pool data of the entire target treated sites showed minimum adult emergence from water sampled of habitats treated with 0.1 g/m3 of pyriproxyfen 1.0 WDG.Conclusions: It is thus concluded that IGRs can be utilized as environment friendly control measures for Culex and Aedes spp. of mosquitoes on small and large scale. This will reduce the use of conventional insecticides by the public health authorities and help in reducing selection pressure of insecticides. | Gul Zamin Khan Inamullah Khan Imtiaz Ali Khan Alamzeb Muhammad Salman Kalim Ullah | 2016 | Asian Pacific Journal of Tropical Biomedicine2016，6，6： | 0 |
| 20 | DeepSVDNet:A Deep Learning-Based Approach for Detecting and Classifying Vision-Threatening Diabetic Retinopathy in Retinal Fundus Images显示文摘Artificial Intelligence(AI)is being increasingly used for diagnosing Vision-Threatening Diabetic Retinopathy(VTDR),which is a leading cause of visual impairment and blindness worldwide.However,previous automated VTDR detection methods have mainly relied on manual feature extraction and classification,leading to errors.This paper proposes a novel VTDR detection and classification model that combines different models through majority voting.Our proposed methodology involves preprocessing,data augmentation,feature extraction,and classification stages.We use a hybrid convolutional neural network-singular value decomposition(CNN-SVD)model for feature extraction and selection and an improved SVM-RBF with a Decision Tree(DT)and K-Nearest Neighbor(KNN)for classification.We tested our model on the IDRiD dataset and achieved an accuracy of 98.06%,a sensitivity of 83.67%,and a specificity of 100%for DR detection and evaluation tests,respectively.Our proposed approach outperforms baseline techniques and provides a more robust and accurate method for VTDR detection. | Anas Bilal Azhar Imran Talha Imtiaz Baig Xiaowen Liu Haixia Long Abdulkareem Alzahrani Muhammad Shafiq | 2024 | Computer Systems Science & Engineering2024，48，2： | 0 |
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