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Mazhar, Muhammad,Hussain, S.M.,Rabbani, Faiz,Kociok-Kohn, Gabriele,Molloy, Kieran C. Korean Chemical Society 2006 Bulletin of the Korean Chemical Society Vol.27 No.10
A dimeric precursor, $[Cu(dmae)(OCOCH_3)(H_2O)]_2$ for the CVD of copper metal films, (dmaeH = N,N-dimethylaminoethanol) was synthesized by the reaction of copper(II) acetate monohydrate ($Cu(OCOCH_3)_2{\cdot}H_2O$) and dmaeH in toluene. The product was characterized by m.p. determination, elemental analysis and X-ray crystallography. Molecular structure of $[Cu(dmae)(OCOCH_3)(H_2O)]_2$ shows that a dimeric unit $[Cu(dmae)(OCOCH_3)(H_2O)]_2$ is linked to another through hydrogen bond and it undergoes facile decomposition at 300 C to deposit granular copper metal film under nitrogen atmosphere. The decomposition temperature, thermal behaviour, kinetic parameters, evolved gas pattern of the complex, morphology, and the composition of the film were also investigated.
Muhammad Mazhar*,S. M. Hussain,Faiz Rabbani,Gabriele Kociok-Kohn,Kieran C. Molloy 대한화학회 2006 Bulletin of the Korean Chemical Society Vol.27 No.10
A dimeric precursor, [Cu(dmae)(OCOCH3)(H2O)]2 for the CVD of copper metal films, (dmaeH = N,N-dimethylaminoethanol) was synthesized by the reaction of copper(II) acetate monohydrate (Cu(OCOCH3)2H2O) and dmaeH in toluene. The product was characterized by m.p. determination, elemental analysis and X-ray crystallography. Molecular structure of [Cu(dmae)(OCOCH3)(H2O)]2 shows that a dimeric unit [Cu(dmae)(OCOCH3)(H2O)]2 is linked to another through hydrogen bond and it undergoes facile decomposition at 300 C to deposit granular copper metal film under nitrogen atmosphere. The decomposition temperature, thermal behaviour, kinetic parameters, evolved gas pattern of the complex, morphology, and the composition of the film were also investigated.
Mazhar Abbas,M. Mumtaz Khan,M. Javed Iqbal,Rashid W. Khan 한국원예학회 2004 Horticulture, Environment, and Biotechnology Vol.45 No.5
The effects of environmental treatments to rapidly shorten seed viability in fenugreek (Trigonella foenumgrraecum L.) were explored. Seed germination capacity, seedling vigor (measured as radicle length), and seed leachate conductivity were measured in relation to the ageing process. Artificial ageing significantly reduced the final germination percentage and radicle length. Loss of viability and declining vigor were associated with increased solute leakage. Germination percentage was reduced up to 58% after 7 days of artificial ageing compared to the non-aged control (100%). Following artificial ageing, radicle length was reduced from 0.73 to 0.23 ㎝. The results indicated that a reduction in seed viability and vigor followed by membrane disruption might play a considerable role in deterioration of fenugreek seeds.
Real-time secure communication for Smart City in high-speed Big Data environment
Rathore, M. Mazhar,Paul, Anand,Ahmad, Awais,Chilamkurti, Naveen,Hong, Won-Hwa,Seo, HyunCheol Elsevier 2018 Future generation computer systems Vol.83 No.-
<P><B>Abstract</B></P> <P>The recent development in the technology brings the concept of Smart City that is achieved through real-time city related intelligent decisions by analyzing the data harvested from various smart systems in the city using millions of sensors and devices connected over the Internet, termed as Internet of Things (IoT). These devices generate the overwhelming volume of high-speed streaming data, termed as Big Data. However, the generation of city data at a remote location and then transmitting it to central city servers for analysis purpose raises the concerns of security and privacy. On the other hand, providing security to such Big Data streaming requires a high-speed security system that can work in a real-time environment without providing any delay that may slow down the overall performance of the Smart City System. To overthrown these challenges, in this paper, we proposed an efficient and real-time Smart City security system by providing strong intrusion detection at intelligent city building (ICB) and also a security protocol to protect the communication between the remote smart system(RSS)/User and the city analysis building, i.e., ICB. The proposed communication security protocol consists of various phases, i.e., registration phase, session key exchange phase, session key revocation phase, and data transmission phases from RSS to ICB as well as from User to ICB. Vast security analyses are performed to evaluate the credibility of the system. The proposed system is also evaluated on efficiency in terms of computation cost and throughput of overall functions used in the system. The system’s evaluation and the comparative study with existing system show that the prosed system is secure, more efficient, and able to work in a real-time, high-speed Smart City environment.</P> <P><B>Highlights</B></P> <P> <UL> <LI> This paper presents a system architecture that integrate Smart City with technical network. </LI> <LI> A Novel notion of Smart-City Network is defined by Communication Security. </LI> <LI> Intelligent Smart Building Architecture with Remote Smart System. </LI> <LI> The system is also implemented of Smart City Decision are done on top of Hadoop parallel nodes. </LI> </UL> </P>
Absolute Summability Factors of Infinite Series
S.M. Mazhar KYUNGPOOK UNIVERSITY 1999 Kyungpook mathematical journal Vol.39 No.1
The paper deals with the absolute summability factors of an infinite series. The result obtained in this paper generalizes a recent result of Bor.
Exploiting IoT and big data analytics: Defining Smart Digital City using real-time urban data
Rathore, M. Mazhar,Paul, Anand,Hong, Won-Hwa,Seo, HyunCheol,Awan, Imtiaz,Saeed, Sharjil Elsevier 2018 Sustainable cities and society Vol.40 No.-
<P><B>Abstract</B></P> <P>Integration of all smart systems (such as smart home, smart parking, etc.) and the IoT devices (such as sensors, actuators, and smartphones) in the city can play a vital role to develop the urban services by building their city digital and smarter. However, interconnection of lots of IoT objects to collect urban data over the Internet to launch a smart digital city, effects vast volume of data generation, termed as Big Data. Thus, it is a challenging task to integrate IoT devices and smart systems in order to harvest and process such big amount of real-time city data in an effective manner aimed at creating a Smart Digital City. Therefore, in this paper, we have established an IoT-based Smart City by using Big Data analytics while harvesting real-time data from the city. We used sensors’ deployment including sensors at smart home, smart parking, vehicular networking, surveillance, weather and water monitoring system, etc., for real time data collection. The complete system is described by its proposed architecture and implementation prototype using Hadoop ecosystem in a real environment. In addition, the Smart Digital City services are extended by developing the intelligent Smart Transportation System by means of big graph processing to facilitate citizens while providing real-time traffic information and alerts. The proposed system consists of number of stages including data generation and collection, aggregation, filtration, classification, preprocessing, computing, and decision making. The efficiency of the system is extended by applying Big Data processing using Apache Spark over Hadoop. Whereas, the big city graph processing is achieved by using Giraph over Hadoop. The system is practically implemented by taken existing smart systems and IoT devices as city data sources to develop the Smart Digital City. The proposed system is evaluated with respect to efficiency in terms of scalability and real-time data processing.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Data Generation, Collection, Aggregation, Filtration, Classification, Preprocessing Computing and Decision Making. </LI> <LI> Impementation of Smart IoT based Digital City using Real-Time Urban Data. </LI> <LI> Big Data Analytics for City Planning using Hadoop Ecosystem. </LI> <LI> Big Graph Processing for Traffic Information and Alert. </LI> <LI> System is Evaluated for its Scalability and Real-time Data Processing. </LI> </UL> </P>
Syed T. Hussain*,M. Mazhar,Sheraz Gul,Karl T Chuang,Alan R. Sanger 대한화학회 2006 Bulletin of the Korean Chemical Society Vol.27 No.11
Two types of catalyst samples were prepared, one sulfated zirconia and the other silica doped sulfated zirconia. The acidity tests indicate that sulfated zirconia doped with silica has higher concentration and strength of acidic catalyst sites than undoped sulfated zirconia. The acidic surface sites have been characterized using FTIR, NMR, pyridine adsorption, TPD, XRD and nitrogen adsorption. Doping with silica increased the concentration of surface Lewis and Brfnsted acid sites and resulted in generation of proximate acid sites.The activity test indicates that doping sulfated zirconia with silica increases both the acidity and catalytic activity for liquid phase dehydration of methanol at 413-453 K. Methanol is sequentially dehydrated to dimethyl ether and ethylene over both catalysts. Significant amounts of propylene are also formed over the silica-doped catalyst, but not over the undoped catalyst.