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| 1 | Effect of thickness on the structural, optical and electrical properties of thermally evaporated PbI 2 thin films显示文摘 | Mohd Shkir Haider Abbas Siddhartha Ziaul Raza Khan | 2012 | Journal of Physics and Chemistry of Solids2012，，11： | 1 |
| 2 | Energy-efficient power allocation in OFDM-basedcognitive radio systems : a risk-return model 显示文摘 | Ziaul Hasan Gaurav Bansal Ekram Hossain | 2009 | IEEETrans on Wireless Commun2009，8，12： | 1 |
| 3 | Thomas martin the recovery of BPR implementation through an ERP approach显示文摘 | Ziaul Huq | 2006 | Business Process Management Journal2006，12，5： | 1 |
| 4 | Variable selection strategies and its importance in clinical prediction modelling显示文摘Clinical prediction models are used frequently in clinical practice to identify patients who are at risk of developing an adverse outcome so that preventive measures can be initiated.A prediction model can be developed in a number of ways;however,an appropriate variable selection strategy needs to be followed in all cases.Our purpose is to introduce readers to the concept of variable selection in prediction modelling,including the importance of variable selection and variable reduction strategies.We will discuss the various variable selection techniques that can be applied during prediction model building(backward elimination,forward selection,stepwise selection and all possible subset selection),and the stopping rule/selection criteria in variable selection(p values,Akaike information criterion,Bayesian information criterion and Mallows’Cp statistic).This paper focuses on the importance of including appropriate variables,following the proper steps,and adopting the proper methods when selecting variables for prediction models. | Mohammad Ziaul Islam Chowdhury Tanvir C Turin | 2020 | Family Medicine and Community Health2020，8，1： | 1 |
| 5 | BPR Through ERP:Avoiding Change Management Pitfalls显示文摘 | FAIZUL H KEN C | 2006 | Journal of Change Management2006，6，1： | 1 |
| 6 | BPR through ERP: Avoiding change management pitfalls Journal of Change Management 显示文摘 | Ziaul Huq Faizul Huq Ken Cutright | 2010 | (03) :63-652010，，03： | 1 |
| 7 | Subcarrier and Power Adaptation for Multiuser OFDM-based Cogni-tive Radio Systems显示文摘 | Gaurav Bansal Ziaul Hasan Md Jahangir Hossain | | IEEE Xplor0，，： | 1 |
| 8 | Power Allocation for Cognitive Radios Based on Primary User Activityin an OFDM System显示文摘 | Ziaul Hassain Ekram Hossain Charles Despins | | IEEE Com0，，： | 1 |
| 9 | Monopolar electrocautery versus ultrasonic dissection of the gallbladder from the gallbladder bed in laparoscopic cholecystectomy显示文摘 | Ramzanali SA Ziaul I Shah SS | 2013 | J Ayub Med Coll Abbottabad2013，25，34： | 1 |
| 10 | Microwave-assisted synthesis of Mg:PbI2 nanostructures and their structural,morphological,optical,dielectric and electrical properties for optoelectronic technology显示文摘This work reports the cost-effective growth of Mg:PbI2 nanostructures with 0,1,2.5 and 5.0 wt.%Mg doping concentrations.Structural,vibrational,morphological properties are analyzed using x-ray diffraction(XRD),Raman spectroscopy and scanning electron microscopy(SEM).XRD and Raman studies confirm the monophasic hexagonal system of Mg:PbI2,and no additional impurity peaks are detected.The Scherrer formula is used to determine sizes of crystallites to be in the range of 47-52 nm.EDX/SEM e-mapping analyses confirm the incorporation of Mg in PbI2 matrix and its uniform distribution throughout the sample.The hexagonal nanosheet-and nanoplate-like morphologies are detected in SEM images for pure and Mg-doped PbI2.An optical band gap of nanostructures is obtained from Tauc’s relation to be in the range 3.0-3.25 eV.Dielectric and electrical properties are found in significant enhancement as Mg doping in PbI2 matrix,also the conduction mechanism is discussed. | Mohd.Shkir Ziaul Raza Khan T Alshahrani Kamlesh VChandekar M Aslam Manthrammel Ashwani Kumar S AlFaify | 2020 | Chinese Physics B2020，29，11： | 0 |
| 11 | Gain-Enhanced Metamaterial Based Antenna for 5G Communication Standards显示文摘Metamaterial surfaces play a vital role to achieve the surface waves suppression and in-phase reflection,in order to improve the antenna performance.In this paper,the performance comparison of a fifth generation(5G)antenna design is analyzed and compared with a metamaterial-based antenna for 5G communication system applications.Metamaterial surface is utilized as a reflector due to its in-phase reflection characteristic and high-impedance nature to improve the gain of an antenna.As conventional conducting ground plane does not give enough surface waves suppression which affects the antenna performance in terms of efficiency and gain etc.These factors are well considered in this work and improved by using the metamaterial surface.The radiating element of the proposed metamaterial based antenna is made up of copper material which is backed by the substrate,i.e.,Rogers-4003 with a standard thickness,loss tangent and a relative permittivity of 1.524 mm,0.0027 and 3.55,correspondingly.The proposed antenna with and without metamaterial surface operates at the central frequency of 3.32 GHz and 3.60 GHz,correspondingly.The traditional antenna yields a boresight gain of 2.76 dB which is further improved to 6.26 dB,using the metamaterial surface.The radiation efficiency of the proposed metamaterial-based 5G antenna is above 85%at the desired central frequency. | Daniyal Ali Sehrai Fazal Muhammad Saad Hassan Kiani Ziaul Haq Abbas Muhammad Tufail Sunghwan Kim | 2020 | Computers, Materials & Continua2020，，9： | 0 |
| 12 | Doping radius effects on an erbium-doped fiber amplifier显示文摘In an erbium-doped fiber amplifier(EDFA), erbium ions act as a three-level system. Therefore, much higher pump energy is required to achieve the population inversion in an erbium-doped fiber(EDF). This higher pump energy requirement complicates the efficient design of an EDFA. However, efficient use of the pump power can improve the EDFA performance. The improved performance of an EDFA can be obtained by reducing the doping radius of the EDF. A smaller doping radius increases pump–dopant interactions and subsequently increases the pump–photon conversion efficiency. Decreasing the doping radius allows a larger proportion of dopant ions,which are concentrated near the core, to interact with the highest pump intensity. However, decreasing the doping radius beyond a certain limit will bring the dopant ions much closer and introduce detrimental ion–ion interaction effects. In this Letter, we show that an optimal doping radius in an EDF can provide the best gain performance. Moreover, we have simulated the well-known numerical aperture effects on EDFA gain performance to support our claim. | Ziaul Amin Khurram Karim Qureshi Mahbub Hossain | 2019 | Chinese Optics Letters2019，17，1： | 0 |
| 13 | Comprehensive Utility Function for Resource Allocation in Mobile Edge Computing显示文摘In mobile edge computing(MEC),one of the important challenges is how much resources of which mobile edge server(MES)should be allocated to which user equipment(UE).The existing resource allocation schemes only consider CPU as the requested resource and assume utility for MESs as either a random variable or dependent on the requested CPU only.This paper presents a novel comprehensive utility function for resource allocation in MEC.The utility function considers the heterogeneous nature of applications that a UE offloads to MES.The proposed utility function considers all important parameters,including CPU,RAM,hard disk space,required time,and distance,to calculate a more realistic utility value for MESs.Moreover,we improve upon some general algorithms,used for resource allocation in MEC and cloud computing,by considering our proposed utility function.We name the improved versions of these resource allocation schemes as comprehensive resource allocation schemes.The UE requests are modeled to represent the amount of resources requested by the UE as well as the time for which the UE has requested these resources.The utility function depends upon the UE requests and the distance between UEs and MES,and serves as a realistic means of comparison between different types of UE requests.Choosing(or selecting)an optimal MES with the optimal amount of resources to be allocated to each UE request is a challenging task.We show that MES resource allocation is sub-optimal if CPU is the only resource considered.By taking into account the other resources,i.e.,RAM,disk space,request time,and distance in the utility function,we demonstrate improvement in the resource allocation algorithms in terms of service rate,utility,and MES energy consumption. | Zaiwar Ali Sadia Khaf Ziaul Haq Abbas Ghulam Abbas Lei Jiao Amna Irshad Kyung Sup Kwak Muhammad Bilal | 2021 | Computers, Materials & Continua2021，，2： | 0 |
| 14 | Authentication of Vehicles and Road Side Units in Intelligent Transportation System显示文摘Security threats to smart and autonomous vehicles cause potential consequences such as traffic accidents,economically damaging traffic jams,hijacking,motivating to wrong routes,and financial losses for businesses and governments.Smart and autonomous vehicles are connected wirelessly,which are more attracted for attackers due to the open nature of wireless communication.One of the problems is the rogue attack,in which the attacker pretends to be a legitimate user or access point by utilizing fake identity.To figure out the problem of a rogue attack,we propose a reinforcement learning algorithm to identify rogue nodes by exploiting the channel state information of the communication link.We consider the communication link between vehicle-to-vehicle,and vehicle-to-infrastructure.We evaluate the performance of our proposed technique by measuring the rogue attack probability,false alarm rate(FAR),mis-detection rate(MDR),and utility function of a receiver based on the test threshold values of reinforcement learning algorithm.The results show that the FAR and MDR are decreased significantly by selecting an appropriate threshold value in order to improve the receiver’s utility. | Muhammad Waqas Shanshan Tu Sadaqat Ur Rehman Zahid Halim Sajid Anwar Ghulam Abbas Ziaul Haq Abbas Obaid Ur Rehman | 2020 | Computers, Materials & Continua2020，，7： | 0 |
| 15 | Physical Layer Authentication Using Ensemble Learning Technique in Wireless Communications显示文摘Cyber-physical wireless systems have surfaced as an important data communication and networking research area.It is an emerging discipline that allows effective monitoring and efficient real-time communication between the cyber and physical worlds by embedding computer software and integrating communication and networking technologies.Due to their high reliability,sensitivity and connectivity,their security requirements are more comparable to the Internet as they are prone to various security threats such as eavesdropping,spoofing,botnets,man-in-the-middle attack,denial of service(DoS)and distributed denial of service(DDoS)and impersonation.Existing methods use physical layer authentication(PLA),themost promising solution to detect cyber-attacks.Still,the cyber-physical systems(CPS)have relatively large computational requirements and require more communication resources,thus making it impossible to achieve a low latency target.These methods perform well but only in stationary scenarios.We have extracted the relevant features from the channel matrices using discrete wavelet transformation to improve the computational time required for data processing by considering mobile scenarios.The features are fed to ensemble learning algorithms,such as AdaBoost,LogitBoost and Gentle Boost,to classify data.The authentication of the received signal is considered a binary classification problem.The transmitted data is labeled as legitimate information,and spoofing data is illegitimate information.Therefore,this paper proposes a threshold-free PLA approach that uses machine learning algorithms to protect critical data from spoofing attacks.It detects the malicious data packets in stationary scenarios and detects them with high accuracy when receivers are mobile.The proposed model achieves better performance than the existing approaches in terms of accuracy and computational time by decreasing the processing time. | Muhammad Waqas Shehr Bano Fatima Hassan Shanshan Tu Ghulam Abbas Ziaul Haq Abbas | 2022 | Computers, Materials & Continua2022，，12： | 0 |
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