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Automatic Eyewitness Identification During Disasters by Forming a Feature-Word Dictionary

Computers, Materials & Continua 2022年第9期72卷 4755-4769页

作者： Shahzad Nazir Muhammad Asif shahbaz ahmad Hanan Aljuaid shahbaz ahmad Yazeed Ghadi Zubair nawaz Department of Computer Science National Textile UniversityFaisalabadPakistan Computer Sciences Department College of Computer and Information SciencesPrincess Nourah bint Abdulrahman University(PNU)P.O.Box 84428Riyadh 11671Saudi Arabia Department of Software Engineering and Computer Science Al Ain UniversityAbu DhabiUnited Arab Emirates Department of Data Science University of the PunjabPakistan

Social media provide digitally interactional technologies to facilitate information sharing and exchanging ***,in case of disasters,a massive corpus is placed on platforms such as *** accounts can benefit humanitarian organizations and agencies,but identifying the eyewitness Tweets related to the disaster from millions of Tweets is *** approaches have been developed to address this kind of *** recent state-of-the-art system was based on a manually created dictionary and this approach was further refined by introducing linguistic ***,these approaches suffer from limitations as they are dataset-dependent and not *** this paper,we proposed a method to identify eyewitnesses from *** experiment,we utilized 13 features discovered by the pioneer of this domain and can classify the tweets to determine the *** each feature,a dictionary of words was created with the Word Dictionary Maker algorithm,which is the crucial contribution of this *** algorithm inputs some terms relevant to a specific feature for its initialization and then creates the words ***,keyword matching for each feature in tweets is *** a feature exists in a tweet,it is termed as 1;otherwise,***,for 13 features,we created a file that reflects features in each *** classify the tweets based on features,Naïve Bayes,Random Forest,and Neural Network were *** approach was implemented on different disasters like earthquakes,floods,hurricanes,and Forest *** results were compared with the state-of-the-art linguistic rule-based system with 0.81 F-measure *** the same time,the proposed approach gained a 0.88 value of *** results were comparable as the proposed approach is not ***,it can be used for the identification of eyewitness accounts.

关键词： Word dictionary social media eyewitness identification disasters

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Evolution-Based Performance Prediction of Star Cricketers

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Computers, Materials & Continua 2021年第10期69卷 1215-1232页

作者： Haseeb ahmad shahbaz ahmad Muhammad Asif Mobashar Rehman Abdullah Alharbi Zahid Ullah Department of Computer Science National Textile UniversityFaisalabadPakistan Faculty of Information and Communication Technology Universiti Tunku Abdul RahmanKampar31900PerakMalaysia Department of Information Technology College of Computers and Information TechnologyTaif UniversityTaif21944Saudi Arabia Department of Information Systems King Abdulaziz UniversityJeddahSaudi Arabia

Cricket databases contain rich and useful information to examine and forecasting patterns and *** paper predicts Star Cricketers(SCs)from batting and bowling domains by employing supervised machine learning *** this aim,each player’s performance evolution is retrieved by using effective features that incorporate the standard performance measures of each player and their *** is performed by applying Bayesianrule,function and decision-tree-based *** evaluations are performed to validate the applicability of the proposed *** particular,the impact of the individual features on the prediction of SCs are ***,the category and model-wise feature evaluations are also conducted.A cross-validation mechanism is applied to validate the performance of our proposed approach which further confirms that the incorporated features are statistically ***,leading SCs are extracted based on their performance evolution scores and their standings are cross-checked with those provided by the International Cricket Council.

关键词： Online social databases cricket star cricketers prediction machine learning

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Industrial Automation Information Analogy for Smart Grid Security

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Computers, Materials & Continua 2022年第5期71卷 3985-3999页

作者： Muhammad Asif Ishfaq Ali shahbaz ahmad Azeem Irshad Akber Abid Gardezi Fawaz Alassery Habib Hamam Muhammad Shafiq Department of Computer Science National Textile UniversityFaisalabad37610PunjabPakistan Department of Computer Science and Software Engineering International Islamic UniversityIslamabadPakistan Department of Computer Science COMSATS University IslamabadIslamabadPakistan Department of Computer Engineering College of Computers and Information TechnologyTaif UniversityTaifSaudi Arabia Faculty of Engineering Moncton UniversityNBE1A3E9Canada Department of Information and Communication Engineering Yeungnam UniversityGyeongsan38541Korea

Industrial automation or assembly automation is a strictly monitored environment,in which changes occur at a good *** are many types of entities in the focusing environment,and the data generated by these devices is *** addition,because the robustness is achieved by sensing redundant data,the data becomes *** data generating device,whether it is a sensing device or a physical device,streams the data to a higher-level deception device for calculation,so that it can be driven and configured according to the updated *** the emergence of the Industry 4.0 concept that includes a variety of automation technologies,various data is generated through numerous ***,the data generated for industrial automation requires unique Information Architecture(IA).IA should be able to satisfy hard real-time constraints to spontaneously change the environment and the instantaneous configuration of all *** understand its applicability,we used an example smart grid *** smart grid system needs an IA to fulfill the communication requirements to report the hard real-time changes in the power immediately following the *** addition,in a smart grid system,it needs to report changes on either side of the system,i.e.,consumers and suppliers configure and reconfigure the system according to the *** this article,we propose an analogy of a physical phenomenon.A point charge is used as a data generating device,the streamline of electric flux is used as a data flow,and the charge distribution on a closed surface is used as a ***,the intensity changes are used in the physical process,e.g.,the smart *** analogy is explained by metaphors,and the structural mapping framework is used for its theoretical *** proposed analogy provides a theoretical basis for the development of such information architectures that can represent data flows,definition changes(deterministic and non-deterministic),events,and i

关键词： Industry 4.0 information architecture industrial automation

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Effect of plant nutrition on aphid size, prey consumption, and life history characteristics of green lacewing

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Insect Science 2014年第1期21卷 74-82页

作者： Muhammad A. Aqueel Catherine M. Collins Abu-bakar M. Raza shahbaz ahmad Muhammad Tariq Simon R. Leather Division of Ecology & Evolution Imperial College London Silwood Park Campus Ascot SL5 7PY United Kingdom Department of Entomology University College of Agriculture University of Sargodha Institute of Agricultural Sciences University of the Punjab Punjab Department of Entomology PMAS-Arid Agriculture University Rawalpindi Rawalpindi Pakistan

Plant quality can directly and indirectly affect the third trophic level. The predation by all the instars of green lacewing, Chrysoperla carnea （S.）（Neuroptera： Chrysopidae） on the cereal aphids, Rhopalosiphum padi （L.）, and Sitobion avenae （F.） at varying nitrogen fertilizer levels was calculated under laboratory conditions. Wheat plants were grown on four nitrogen fertilizer levels and aphids were fed on these plants and subsequently offered as food to the C. carnea. Aphid densities of 10, 30, and 90 were offered to first, second, and third instar larvae of green lacewing. Increased nitrogen application improved nitrogen contents of the plants and also the body weight of cereal aphids feeding on them. Aphid consumption by green lacewings was reduced with the increase in nitrogen content in the host plants of aphids. Predation of both aphid species by first, second, and third instars larvae of C. carnea was highest on aphids reared on plants with the lowest rate of fertilization, suggesting a compensatory consumption to overcome reduced biomass （lower aphid size）. Total biomass devoured by C. carnea on all nitrogen fertilizer treatments was not statistically different. Additionally, the heavier host prey influenced by the plant nutrition had an effect on the life history characteristics of green lacewings. The larval duration, pupal weight, pupal duration, fecundity, and male and female longevity were significantly affected by the level of nitrogen fertilization to the aphid＇s host plants, except for pupal duration when fed on S. avenae. This study showed that quantity of prey supplied to the larvae affects the prey consumption and thereafter the life history characteristics of green lacewings.

关键词： Chrysoperla carnea host plant nutrition tritrophic interactions

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微藻提取物诱导氧化石墨烯（GO）的生物还原及其应用

微藻提取物诱导氧化石墨烯（GO）的生物还原及其应用

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作者： shahbaz ahmad 北京化工大学

学位级别：硕士

当代科学领域,氧化石墨烯(GO)及其还原形式(rGO)引起了科学界的重大关注。适当还原石墨烯氧化物既能保持其原有性能,同时又能增强其功效。传统上,在实验研究中各种危险化学药剂如(GO)的使用,对环境保护,人体健康,牲畜安全等存在着巨大... 详细信息

当代科学领域,氧化石墨烯(GO)及其还原形式(rGO)引起了科学界的重大关注。适当还原石墨烯氧化物既能保持其原有性能,同时又能增强其功效。传统上,在实验研究中各种危险化学药剂如(GO)的使用,对环境保护,人体健康,牲畜安全等存在着巨大的潜在危险。因此,利用来自绿色可再生资源的生物分子(如:植物,藻类和蓝细菌)来减少GO的污染就十分必要。在目前的研究中,我采用了新的研究方案,并采用了不同的微藻株探索其还原潜力,用于将GO还原成rGO,从而达到环境友好的目标。采用不同微藻类水生提取物中的生物活性分子作为绿色化学品(如:空泡藤(菌株211-11n),嗜酸环氧化酶(菌株211-9a)和Lyptolyngbya菌株(JSC-1)的来源,以减少石墨烯氧化物的污染。GO(227至287 nm)的表面等离子体共振的光谱变化和拉曼光谱中D和G带的变化,证实了氧化石墨烯成功地还原为还原的氧化石墨烯。通过透射电子显微镜(TEM)和X射线分析证实,还原的氧化石墨烯的形态和晶体结构。表面电位从-43r mV到-17 mV的连续降低进一步支持了将GO还原成rGO(ζ电位分析)。然后将合成的生物源rGO用作去除重金属如铅(Pb)和铜(Cu)的吸附剂。在不同的时间间隔内的吸附表明,Pb(95±2%)和Cu(96±2%)的去除率较高,表明生物源rGO是从污染水中去除重金属的优良材料,并且有可能成为其他环境污染物的高效吸附剂。总而言之,使用微藻作为还原生物分子的来源将GO还原成其还原形式,因此对环境的潜在威胁将被最小化。

关键词：石墨烯微藻氧化石墨烯生物修复重金属氧化还原电位

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Modification in Cu-Zn Alloy Properties by 2 MeV Ni<sup>+</sup>Ions Irradiation

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Materials Sciences and Applications 2018年第3期9卷 330-344页

作者： shahbaz ahmad Shazia Bashir Daniel Yousaf Mian Ahsan Ali Department of Physics University of Sargodha Lahore Campus Lahore Pakistan Center for Advanced Studies in Physics Government College University Lahore Pakistan

We investigate the effects of 2 MeV Ni+ ion beam irradiation with various fluence ranging from 15 × 1011 to 60 × 1014 ions/cm2 on the surface, structural and mechanical properties of Cu-Zn alloy. The modification in target properties after irradiation is confirmed by using various characterization techniques viz. SEM, XRD, UTM and Vickers micro-hardness tester. The SEM results illustrate the formation of nano sized craters with different diameters. Their average diameter decreases from 190 nm to 90 nm by increasing ion fluence. The XRD analysis of irradiated targets reveals that Ni+ ion irradiation enhances the growth of (111) phase and its peak position varies due to ion induced tensile stresses in target matrix. Tensile and Vickers micro-hardness tests verify the mechanical properties of Cu-Zn alloy reduce monotonically upon irradiation. Various mechanisms such as generation, recombination, augmentation and annihilation of ion induced defects are responsible for this reduction. Understanding the relationships between various modified properties of irradiated target is essential for growing new advanced material by irradiation.

关键词： Ion Irradiation Mechanical Properties Ion Fluence Frenkel Defects Crystallite Size

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Surface Analysis Correlated with Structural and Mechanical Properties of Laser Irradiated Brass

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Materials Sciences and Applications 2015年第1期6卷 23-32页

作者： shahbaz ahmad Shazia Bashir Daniel Yousaf Nisar Ali Tousif Hussain Center for Advanced Studies in Physics Government College University Lahore Pakistan

Brass targets were irradiated with various laser pulses of Excimer laser ranging from 1200 to 3000 for constant fluence of 3.4 J/cm2 in oxygen atmosphere (100 Torr). The surface morphology and crystallographic analyses were performed by using Scanning Electron Microscope (SEM) and X-Ray Diffractometer (XRD). SEM analysis reveals the formation of laser-induced micro-sized cavities, bumps, cones and wave-like ridges with non-uniform shape and density distribution. These features are formed for all number of pulses;however with increasing number of pulses from 1200 to 2400, the density of cavities decreases whereas, the wave-like ridges become more pronounced and bump-formation is vanished. For maximum number of 3000 shots, the appearance of cones and wave-like ridges becomes diffusive, whereas the density and size of cavities increase again. XRD analysis demonstrates that no new phases are formed in irradiated brass. However, the change in peak intensity along with lower and higher angle shifting is observed which is attributed to generation of laser induced stresses. The Yield Stress (YS), Ultimate Tensile Strength (UTS) as well as Microhardness increase monotonically with increasing number of laser pulses.

关键词： Laser Pulses Surface Morphology Mechanical Properties Crystallographic Alteration

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A novel medical image data protection scheme for smart healthcare system

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CAAI Transactions on Intelligence Technology 2024年第4期9卷 821-836页

作者： Mujeeb Ur Rehman Arslan Shafique Muhammad shahbaz Khan Maha Driss Wadii Boulila Yazeed Yasin Ghadi Suresh Babu Changalasetty Majed Alhaisoni Jawad ahmad School of Computer Science and Informatics Cyber Technology InstituteDe Montfort UniversityLeicesterUK Department of Biomedical Engineering University of GlasgowGlasgowUK School of Computing Engineering and the Built EnvironmentEdinburgh Napier UniversityEdinburghUK Robotics and Internet‐of‐Things Laboratory Prince Sultan UniversityRiyadhSaudi Arabia Department of Computer Science Al Ain UniversityAl AinUnited Arab Emirates Department of Computer Engineering College of Computer Science King Khalid UniversityAbhaSaudi Arabia Computer Sciences Department College of Computer and Information SciencesPrincess Nourah bint Abdulrahman UniversityRiyadhSaudi Arabia

The Internet of Multimedia Things(IoMT)refers to a network of interconnected multimedia devices that communicate with each other over the ***,smart healthcare has emerged as a significant application of the IoMT,particularly in the context of knowledge‐based learning *** healthcare systems leverage knowledge‐based learning to become more context‐aware,adaptable,and auditable while maintain-ing the ability to learn from historical *** smart healthcare systems,devices capture images,such as X‐rays,Magnetic Resonance *** security and integrity of these images are crucial for the databases used in knowledge‐based learning systems to foster structured decision‐making and enhance the learning abilities of ***,in knowledge‐driven systems,the storage and transmission of HD medical images exert a burden on the limited bandwidth of the communication channel,leading to data trans-mission *** address the security and latency concerns,this paper presents a lightweight medical image encryption scheme utilising bit‐plane decomposition and chaos *** results of the experiment yield entropy,energy,and correlation values of 7.999,0.0156,and 0.0001,*** validates the effectiveness of the encryption system proposed in this paper,which offers high‐quality encryption,a large key space,key sensitivity,and resistance to statistical attacks.

关键词： data analysis medical image processing security

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Flexible perovskite light-emitting diodes for display applications and beyond

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Journal of Semiconductors 2024年第5期45卷 8-25页

作者： Yongqi Zhang shahbaz Ahmed Khan Dongxiang Luo Guijun Li Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province College of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhen 518060China Huangpu Hydrogen Innovation Center/Guangzhou Key Laboratory for Clean Energy and Materials School of Chemistry and Chemical EngineeringGuangzhou UniversityGuangzhou 510006China

The flexible perovskite light-emitting diodes(FPeLEDs),which can be expediently integrated to portable and wearable devices,have shown great potential in various *** FPeLEDs inherit the unique optical properties of metal halide perovskites,such as tunable bandgap,narrow emission linewidth,high photoluminescence quantum yield,and particularly,the soft nature of *** present,substantial efforts have been made for FPeLEDs with encouraging external quantum efficiency(EQE)of 24.5%.Herein,we summarize the recent progress in FPeLEDs,focusing on the strategy developed for perovskite emission layers and flexible electrodes to facilitate the optoelectrical and mechanical *** addition,we present relevant applications of FPeLEDs in displays and ***,perspective toward the future development and applications of flexible PeLEDs are also discussed.

关键词： metal halide perovskite flexible light-emitting diodes optical properties mechanical flexibility display

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Optimizing Yield and Nutrients Content in Tomato by Vermicompost Application under Greenhouse Conditions

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Natural Resources 2015年第7期6卷 457-464页

作者： Syed Ishtiaq Hyder Muhammad Farooq Tariq Sultan Arshad Ali Muhammad Ali Muhammad Zahid Kiani shahbaz ahmad Tausif Tabssam National Agricultural Research Centre (NARC) Islamabad Pakistan

Optimizing yield and nutrients content in crop production is the high time demand of arable farming. Vermicompost furnishes one of the most promising alternatives to costly chemical fertilizer. Therefore, a greenhouse experiment was conducted at NARC, Islamabad, to investigate the effect of different levels of vermicompost [having C/N=15/1 and 14 Plant Growth Promoting Rhizobacteria (PGPR)] on growth, yield and nutrients content in hybrid tomato (National Tunnel Tomato-04-08) under greenhouse conditions during Rabi 2015. The data revealed that different rates (0.5 t·ha-1, 1 t·ha-1, 1.5 t·ha-1 and 2 t·ha-1) of vermicompost produced varied and significant (P -1) at the application of 2.0 t vermicompost ha-1 followed by 3.226 t·ha-1 where vermicompost was applied @ 1.5 t·ha-1. N, P and K content in tomato fruit and plant increased significantly with the application of increasing levels of vermicompost. The highest content of N (3.7%), P (0.67%), K (5.17%) in tomato fruit and N (3.4%), P (0.32%), K (3.2%) in tomato plant respectively were registered with soil application of vermicompost @ 2.0 t·ha-1. This study confirms that the vermicompost has a tremendous potential of plant nutrients supply for sustainable crop production.

关键词： Vermicompost PGPR Tomato Yield Nutrients and Humic Acid

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