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34篇 您的检索式:作者名="Hamayun"
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1Chemical composition and antioxidant activity of certain Morus species显示文摘In the present work,the fruits of four Morus species,namely Morus alba (white mulberry),Morus nigra (black mulberry),Morus laevigata (large white fruit),and Morus laevigata (large black fruit),were analyzed for proximate composition,essential minerals,and antioxidant potentials.For this purpose,the ripe fruits were collected from the northern regions of Pakistan.The major nutritional components moisture,ash,lipids,proteins,fibres,carbohydrates,and total sugar) were found to be in the suitable range along with good computed energy.Total dry weight,pH,and titratable acidity (percent citric acid) were (17.60±1.94)–(21.97±2.34) mg/100 g,(3.20±0.07)–(4.78±0.15),and (0.84±0.40)%–(2.00±0.08)%,respectively.Low riboflavin (vitamin B2) and niacin (vitamin B3) contents were recorded in all the fruits,while ascorbic acid (vitamin C) was in the range from (15.20±1.25) to (17.03±1.71) mg/100 g fresh weight (FW).The mulberry fruits were rich with regard to the total phenol and alkaloid contents,having values of (880±7.20)–(1650±12.25) mg/100 g FW and (390±3.22)–(660±5.25) mg/100 g FW,respectively.Sufficient quantities of essential macro-(K,Ca,Mg,and Na) and micro-(Fe,Zn,and Ni) elements were found in all the fruits.K was the predominant element with concentration ranging from (1270±9.36) to (1731±11.50) mg/100 g,while Ca,Na,and Mg contents were (440±3.21)–(576±7.37),(260±3.86)–(280±3.50),and (240±3.51)–(360±4.20) mg/100 g,respectivly.The decreasing order of micro-minerals was Fe>Zn>Ni.The radical scavenging activity of methanolic extract of fruits was concentration-dependent and showed a correlation with total phenolic constituents of the respective fruits.Based on the results obtained,mulberry fruits were found to serve as a potential source of food diet and natural antioxidants.Mohammad IMRAN Hamayun KHAN Mohibullah SHAH Rasool KHAN Faridullah KHAN 2010Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2010,11,12:14
2Physicochemical characteristics of various milk samples available in Pakistan显示文摘We report physicochemical characteristics of various kinds of liquid milk commercially available in Pakistan in comparison with those of fresh natural milk from animals. Milk samples were collected from local markets at Peshawar, Pakistan, and analyzed for their physical features, including moisture, total solids, specific gravity, conductivity, viscosity and titratable acidity (lactic acid equivalent), and chemical components and macro-minerals, including total protein, casein, lactose, ash and minerals (Na, K and Mg). These items were compared with the physicochemical characteristics of the fresh natural milk samples from buffalo, cow and goat. The results were also compared with reported nutritional quality of milk from various countries and World Health Organization (WHO) standards. We found that all the physical features and chemical components of commercially available milk in Pakistan markets meet WHO's requirements, except for Na, K, Ca and Mg, which are below the standards.Mohammad IMRAN Hamayun KHAN Syed Shah HASSAN Rasool KHAN 2008Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2008,9,7:4
3Fractional order modeling and control of dissimilar redundant actuating system used in large passenger aircraft显示文摘In this paper, a methodology has been developed to address the issue of force fighting and to achieve precise position tracking of control surface driven by two dissimilar actuators.The nonlinear dynamics of both actuators are first approximated as fractional order models. Based on the identified models, three fractional order controllers are proposed for the whole system. Two Fractional Order PID(FOPID) controllers are dedicated to improving transient response and are designed in a position feedback configuration. In order to synchronize the actuator dynamics, a third fractional order PI controller is designed, which feeds the force compensation signal in position feedback loop of both actuators. Nelder-Mead(N-M) optimization technique is employed in order to optimally tune controller parameters based on the proposed performance criteria. To test the proposed controllers according to real flight condition, an external disturbance of higher amplitude that acts as airload is applied directly on the control surface. In addition, a disturbance signal function of system states is applied to check the robustness of proposed controller. Simulation results on nonlinear system model validated the performance of the proposed scheme as compared to optimal PID and high gain PID controllers.Salman IJAZ Lin YAN Mirza Tariq HAMAYUN 2018Chinese Journal of Aeronautics2018,31,5:3
4Ag-Co3O4:Synthesis,characterization and evaluation of its photo-catalytic activity towards degradation of rhodamine B dye in aqueous medium显示文摘Synthesis,characterization of Co_3O_4 and Ag-Co_3O_4 composites and evaluation of their photo-catalytic activities towards photo-degradation of aqueous solution of rhodamine B dye under irradiation of visible light have been described in this paper.Co_3O_4 was prepared by solid phase mechano chemical process using Co(NO_3)_2·6H_2O and NH_4 HCO_3 as precursor materials.Ag was deposited on Co_3O_4 from AgNO_3 using Calotropis gigantea extract as reducing agent.XRD,SEM and FTIR were used for characterization of prepared composites.Photo-catalytic efficiencies of as-prepared Co_3O_4 and Ag-Co_3O_4 were evaluated for aqueous phase photo-degradation of rhodamine B.It was found that deposition of Ag on Co_3O_4 highly enhanced the photo-catalytic activity of Co_3O_4.Photo-catalytic degradation followed the Eley–Rideal mechanism.About 100% and 91% photo-degradation of 40 ml dye solution achieved at 313 K in 90 and 120 min over 0.05 g of Ag-Co_3O_4 as photo-catalyst using 100 and 200 mg·L^(-1) as initial concentration of dye respectively.Muhammad Saeed Majid Muneer Nida Mumtaz Mohsin Siddique Nadia Akram Muhammad Hamayun 2018Chinese Journal of Chemical Engineering2018,26,6:1
5Methyl jasmonate alleviated salinity stress in soybean 显示文摘Yoon J Y Hamayun M Lee S -K 2009J Crop Sci Biotechnol2009,12,2:1
6A fault tolerant control allocation scheme with output integral sliding modes显示文摘HAMAYUN M T EDWARDS C ALWIH 2013Automatica2013,49,6:1
7Association of autoimmune hepatitis type 1 in a child with Evans syndrome显示文摘Autoimmune hepatitis(AIH) is a progressive liver disease that is often associated with extrahepatic autoimmune disorders. Evans syndrome(ES) is a rare autoimmune disorder, which is characterized by immune thrombocytopenia and autoimmune hemolytic anemia. Association of AIH with ES is rare, especially in children. We report a 3-year-old female with a past medical history of ES who presented with jaundice and significant transaminitis due to AIH type 1. She required multiple treatments with steroids as well as azathioprine, intravenous immunoglobulin and a course of rituximab.Chaowapong Jarasvaraparn Hamayun Imran Abdul Siddiqui Felicia Wilson David A Gremse 2017World Journal of Hepatology2017,9,23:1
8Design and analysis of an integral sliding mode fault-tolerant control scheme显示文摘Hamayun M T Edwards C Alwi H 2012IEEE Trans on Automatic Control2012,57,7:1
9Endophytic fungal as- sociation via gibberellins and indole acetic acid can improve plant growth under abiotic stress: an example of Paecilomyces formosus LHL10 显示文摘Khan A L Hamayun M Kang S M 2012BMC Microbiology2012,12,1:1
10Effect of salt stress on growth attributes and endogenous growth hor- mones of soybean cultivar hwangkeumkong 显示文摘Hamayun M Khan SA Khan AL 2010Pakistan Journal of Botany2010,42,5:1
11Design and analysis of an integral sliding mode fanh-tolerant control scheme显示文摘Hamayun Mirza Tariq Christopher Edwards Halim Alwi 2012Automatic Control IEEE Transactions on 572012,,7:1
12Effect of silicon on growth and salinity stress of soybean plant grown under hydroponic system显示文摘S. K. Lee E. Y. Sohn M. Hamayun J. Y. Yoon I. J. Lee 2010Agroforestry Systems2010,,3:1
13De- sign and analysis of an integral sliding mode fault-toler- ant control scheme 显示文摘HAMAYUN M T EDWARDS C ALWI H 2012IEEE Trans Autom Control2012,57,7:1
14A fault tol- erant control allocation scheme with output integral slid- ing modes 显示文摘HAMAYUN M T EDWARDS C ALWI H 2013Automatica2013,49,6:1
15Kinetin modulates physio-hormonal attributes and isoflavone contents of Soybean grown under salinity stress 显示文摘Hamayun M Hussain A Khan SA 2015Front Plant Sci2015,6,377:1
16Influence of pro- hexadione-calcium on growth and gibberellins content of Chi- nese cabbage grown in alpine region of South Korea显示文摘KANG S M KIM J T HAMAYUN M 2010Sci- entia Horticuhurae2010,125,:1
17Gibberellin-producing endophytic fungi isolated from Monochoria vaginalis 显示文摘AHMAD N HAMAYUN M KHAN SA 2010Microbiol Bio- technol2010,20,:1
18Chemical composition and antioxidant activity of certain Morus species显示文摘Mohammad Imran Hamayun Khan Mohibullah Shah Rasool Khan Faridullah Khan 2010Journal of Zhejiang University SCIENCE B2010,,12:1
19Genotyping of HCV RNA Reveals That 3a Is the Most Prevalent Genotype in Mardan, Pakistan显示文摘Sajid Ali Ayaz Ahmad Raham Sher Khan Sanaullah Khan Muhammad Hamayun Sumera Afzal Khan Amjad Iqbal Abid Ali Khan Abdul Wadood Taj Ur Rahman Ali Hydar Baig Jay C. Brown 2014Advances in Virology2014,,:1
20Equilibrium and kinetics studies of arsenate adsorption by FePO4显示文摘Hamayun M Mahmood T Naeem A 2014Chemosphere2014,99,:1
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