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Smart-Fragile Authentication Scheme for Robust Detecting of Tampering Attacks on English Text

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Computers, Materials & Continua 2022年第5期71卷 2497-2513页

作者： Mohammad Alamgeer Fahd N.Al-Wesabi Huda G.Iskandar imran khan Nadhem Nemri Mohammad Medani Mohammed Abdullah Al-Hagery Ali Mohammed Al-Sharafi Department of Information Systems King Khalid UniversityMuhayel AseerKingdom of Saudi Arabia Department of Computer Science King Khalid UniversityMuhayel AseerKingdom of Saudi Arabia Faculty of Computer and IT Sana’a UniversitySana’aYemen School of Computing Faculty of EngineeringUniversiti Teknologi MalaysiaMalaysia Department of Electrical Engineering University of Engineering and Technology PeshawarPakistan Department of Computer Science College of ComputerQassim UniversitySaudi Arabia Department of Computer Science College of Computers and Information TechnologyUniversity of BishaKSA

Content authentication,integrity verification,and tampering detection of digital content exchanged via the internet have been used to address a major concern in information and communication *** this paper,a text zero-watermarking approach known as Smart-Fragile Approach based on Soft Computing and Digital Watermarking(SFASCDW)is proposed for content authentication and tampering detection of English text.A first-level order of alphanumeric mechanism,based on hidden Markov model,is integrated with digital zero-watermarking techniques to improve the watermark robustness of the proposed *** researcher uses the first-level order and alphanumeric mechanism of Markov model as a soft computing technique to analyze English ***,he extracts the features of the interrelationship among the contexts of the text,utilizes the extracted features as watermark information,and validates it later with the studied English text to detect any *** has been implemented using PHP with VS code *** robustness,effectiveness,and applicability of SFASCDW are proved with experiments involving four datasets of various lengths in random locations using the three common attacks,namely insertion,reorder,and *** SFASCDW was found to be effective and could be applicable in detecting any possible tampering.

关键词： Watermarking soft computing text analysis hidden Markov model content authentication

Analysis and Assessment of Wind Energy Potential of Socotra Archipelago in Yemen

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Computers, Materials & Continua 2022年第1期70卷 1177-1193页

作者： Murad A.Almekhlafi Fahd N.Al-Wesabi imran khan Nadhem Nemri Khalid Mahmood Hany Mahgoub Noha Negm Amin M.El-Kustaban Ammar Zahary Department of Electrical Engineering–Communication Engineering Sana’a UniversityYemen Department of Computer Science King Khalid UniversityMuhayel AseerKingdom of Saudi Arabia Faculty of Computer and IT Sana’a UniversitySana’aYemen Department of Electrical Engineering University of Engineering and TechnologyPeshawarP.O.B 814Pakistan Department of Information Systems King Khalid UniversityMayahel AseerKSA Computer Science Department King Khaled UniversityKSA&Faculty of Computers and InformationComputer Science DepartmentMenoufia UniversityEgypt Computer Science Department King Khaled UniversityKSA&Faculty of ScienceDepartment of Mathematics and Computer ScienceMenoufia UniversityEgypt Electronics Department Faculty of EngineeringUSTSana’aYemen Faculty of Computer and IT Sana’a UniversityYemen

The increasing use of fossil fuels has a significant impact on the environment and ecosystem,which increases the rate of *** the high potential of renewable energy sources inYemen and the absence of similar studies in the region,this study aims to examine the potential of wind energy in Socotra *** was done by analyzing and evaluating wind properties,determining available energy density,calculating wind energy extracted at different altitudes,and then computing the capacity factor for a number of wind turbines and determining the *** average wind speed in Socotra Island was obtained from the Civil Aviation and Meteorology Authority data,only for the five-year data currently *** results showed high wind speeds from June to September(9.85-14.88 m/s)while the wind speed decreased for the rest of the *** average wind speed in the five years was 7.95 m/*** average annual wind speed,wind energy density,and annual energy density were calculated at different altitudes(10,30,and 50 m).According to the International Wind Energy Rating criteria,the region of Socotra Island falls under Category 7 and is classified as‘Superb’for most of the *** study provides useful information for developing wind energy and an efficient wind approach.

关键词： Energy potential wind characteristics Weibull distribution wind power density Socotra island

Influence of Various Row Spacing on the Yield and Yield Components of Raya Anmol and Faisal Canola under Coastal Climatic Conditions of Lasbela

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American Journal of Plant Sciences 2014年第15期5卷 2230-2236页

作者： Muhammad Waseem Dost Mohammad Baloch imran khan Department of Agronomy University of Agriculture Faisalabad Pakistan Faculty of Agriculture Lasbela University of Agriculture Water and Marine Sciences Uthal Pakistan

During 2013-2014 a field experiment was conducted at experimental area of Faculty of Agriculture under Lasbela University of Agriculture, Water and Marine Science, Uthal, Lasbela to evaluate the influence of various row spacing on the yield and yield components of Raya Anmol and Faisal Canola under coastal climatic conditions of Lasbela. Randomized complete block design (RCBD) with factorial arrangement having 3 replications was used. Experiment comprises two canola varieties, C1 = Raya Anmol, C2 = Faisal Canola at 3 row spacing distances RS1 = 30 cm, RS2 = 45 cm and RS3 = 60 cm respectively. Result showed that yield and yield contributing traits are significant. It was concluded that seed yield of C1 (Faisal Canola) was better as compared to that of Raya Anmol. Row spacing (RS3 = 60 cm) yielded more crop canopy and the highest number of pod per plant, pod length and seed yield under agro climatic condition of Lasbela as compared to other densely arranged row spacing.

关键词： Canola Cultivar Row Spacing Coastal Environment

An Efficient Scheme for Interference Mitigation in 6G-IoT Wireless Networks

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Computers, Materials & Continua 2021年第12期69卷 3889-3902页

作者： Fahd N.Al-Wesabi imran khan Nadhem Nemri Mohammed A.Al-Hagery Huda G.Iskander Quang Ngoc Nguyen Babar Shah Ki-Il Kim Department of Computer Science King Khalid UniversityMuhayel AseerKSA Department of Electrical Engineering University of Engineering and TechnologyPeshawarPakistan Department of Information Systems King Khalid UniversityMayahel AseerKSA Department of Computer Science College of ComputerQassim UniversitySaudi Arabia Faculty of Computer and IT Sana’a UniversitySana’aYemen Department of Communications and Computer Engineering Faculty of Science and EngineeringWaseda UniversityShinjuku-kuTokyo169-0051Japan College of Technological Innovation Zayed UniversityAbu DhabiUAE Department of Computer Science and Engineering Chungnam National UniversityDaejeon34134Korea

The Internet of Things(IoT)is the fourth technological revolution in the global information industry after computers,the Internet,and mobile communication *** combines radio-frequency identification devices,infrared sensors,global positioning systems,and various other *** sensing equipment is connected via the Internet,thus forming a vast *** these physical devices are connected to the Internet,the user terminal can be extended and expanded to exchange information,communicate with anything,and carry out identification,positioning,tracking,monitoring,and triggering of corresponding events on each device in the *** real life,the IoT has a wide range of applications,covering many fields,such as smart homes,smart logistics,fine agriculture and animal husbandry,national defense,and *** of the most significant factors in wireless channels is interference,which degrades the system *** the existing QR decomposition-based signal detection method is an emerging topic because of its low complexity,it does not solve the problem of poor detection ***,this study proposes a maximumlikelihood-based QR decomposition *** main idea is to estimate the initial level of detection using the maximum likelihood principle,and then the other layer is detected using a reliable *** optimal candidate is selected from the feedback by deploying the candidate points in an unreliable *** results show that the proposed algorithm effectively reduces the interference and propagation error compared with the algorithms reported in the literature.

关键词： 6G networks internet of things resource allocation optimization

污染土壤中PAHs的生物可利用性和毒性评价

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污染土壤中PAHs的生物可利用性和毒性评价

作者： Muhammad imran khan 浙江大学

学位级别：硕士

人类活动排放到环境中的众多污染物中,多环芳烃(Polycyclic AromaticHydrocarbons,PAHs)是最危险的污染物之一。PAHs属于典型的持久性有机污染物(Persistent Organic Pollutants,POPs),广泛分布于全世界的土壤、水、大气等环境中。PAHs... 详细信息

人类活动排放到环境中的众多污染物中,多环芳烃(Polycyclic AromaticHydrocarbons,PAHs)是最危险的污染物之一。PAHs属于典型的持久性有机污染物(Persistent Organic Pollutants,POPs),广泛分布于全世界的土壤、水、大气等环境中。PAHs具有高毒性和致癌性,除了直接接触进入人体,PAHs还可在土壤等环境中长期持留作用,危害环境与人体健康。因此,土壤中PAHs污染是主要的一类环境问题。陆地生态系统的多样性和复杂性导致其生态毒理评价存在很多困难。已经证明,土壤中PAHs的生物暴露风险与其生物有效提取部分直接相关,而采用传统总量的评价方法是不恰当的。因此,急需发展准确、敏感、快速的化学、生物方法来有效评价土壤中PAHs的生物有效性。本研究的目标是综合采用化学、生物方法,对土壤中两种典型的多环芳烃类污染物菲和芘的生物有效性与生态毒性进行评价。主要结果如下: 1.为了寻找一种预测土壤中三环PAHs菲的生物有效性的快速有效的化学提取方法,本研究以菲的蚯蚓蓄积试验作为对照,使用了多种化学试剂提取法(温和β环糊精提取、温和有机溶剂提取、索氏提取)对不同浓度添加菲的150天老化土壤进行了提取试验。结果表明,老化显著影响了土壤中菲的蚯蚓累积率与化学提取率。相关分析表明,与温和有机溶剂提取相比,温和β环糊精提取是一种更好预测土壤中菲生物有效性的方法。对于老化与未老化土壤,温和甲醇提取与温和β环糊精提取有着接近的提取率。因此,温和甲醇提取也可对PAHs污染土壤进行风险评价。 2.采用上述类似方法研究了土壤中四环PAHs芘的生物有效性评价方法,采用了三个老化时间(69,150,222天)和更多种有机溶剂。结果表明,低浓度芘污染条件下,老化对土壤中芘的蚯蚓富集无显著影响;在高浓度污染条件下,老化对芘的蚯蚓富集量影响显著。老化显著影响了芘的化学提取性。相关分析发现温和β环糊精提取可以比较准确预测土壤中芘的生物有效性;绝大部分温和有机溶剂提取可以作为耗竭式提取的替代方法,因此会高估风险,不适合作为土壤中芘的生物有效性的评价方法。 3.为了提高生态毒性评估的准确性,我们使用了成组生态毒性测试方法(单细胞凝胶电泳实验,即彗星实验;蚯蚓存活率实验;蚯蚓体重减轻实验以及发光菌发光度抑制实验)来评价PAHs老化69天土壤的生态毒性。在遗传毒性评价中,蚯蚓细胞的DNA损伤与土壤中芘水平有很好的相关性,如尾矩与土壤芘水平相关(r=0.99)。在急性毒性评价中,发光菌广度抑制是PAHs毒性最敏感的指标。各项指标对菲和芘急性毒性的敏感性由低到高排列为:蚯蚓体重湿重减轻率<蚯蚓体重干重减轻率<蚯蚓死亡率(14天)<蚯蚓死亡率(28天)<发光菌发光抑制率(15分钟)<发光菌发光抑制率(5分钟)。在本研究中,综合性的不同营养级的生物检测指标可以比单一的化学指标更准确地反应土壤的的生态健康水平,可与传统化学浓度方法相结合来评价土壤中多环芳烃的生物有效性。 4.采用两种大麦(CM-72cv.和Gairdner cv.)与白菜(Brassica rapa)的成组植物检测方法(种子发芽试验,根-茎生长抑制试验以及生物量测试)对土壤中菲与芘污染进行了植物毒性测试。实验采用老化69天的菲污染土壤(添加浓度为0.95、6.29、58.7和303μg g)与芘污染土壤(添加浓度为1.04、8.99、72.6和399μg g)为对象。结果表明,菲和芘污染土壤对各受试植物种子发芽率无显著影响;在高浓度的污染土壤(菲添加浓度为6.29、58.7和303μg g;芘添加浓度为8.99、72.6和399μg g)中,大麦根与茎生长抑制率显著(P<0.05)。随着土壤中污染浓度的增高,两种大麦的生物量也随之降低。本研究的结果表明,成组植物毒性试验可以较全面地评估土壤中多环芳烃污染的生态风险。

关键词：多环芳烃菲芘土壤富集老化生物有效性生物毒性大麦(Hordeum vulgare) 白菜(Brassica rapa) 蚯蚓(Eisenia fetida) 发光菌有机溶剂 β环糊精温和提取生物测试基因毒性 DNA损伤

Research on Key Technologies of Electronic Shelf Labels Based on LoRa

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Journal on Big Data 2021年第2期3卷 49-63页

作者： Malak Abid Ali khan Xiaofeng Lian imran khan Mirani Li Tan School of Artificial Intelligence Beijing Technology&Business UniversityBeijing100048China School of Automation Beijing Institute of TechnologyBeijing100081China School of Information and Computer Engineering Beijing University of TechnologyBeijing100124China School of Computer Science&Engineering Beijing Technology&Business UniversityBeijing100048China

The demand for Electronic Shelf Labels(ESL),according to the Internet of Things(IoT)paradigm,is expected to grow considerably in the immediate *** wireless communication standards are currently contending to gain an edge over the competition and provide the massive connectivity that will be required by a world in which everyday objects are expected to communicate with each ***-Power Wide-Area Networks(LPWANs)are continuously gaining momentum among these standards,mainly thanks to their ability to provide long-range coverage to devices,exploiting license-free frequency *** main theme of this work is one of the most prominent LPWAN technologies,*** purpose of this research is to provide long-range,less intermediate node,less energy dissipation,and a cheaper ESL *** research has already been done on designing the LoRaWAN network,not capable to make a reliable *** is using different gateways to transmit the same data,collision,data jamming,and data repetition are *** to the transmission behavior of LoRa,50%of data is *** this paper,the Improved Backoff Algorithm with synchronization technique is used to decrease overlapping and data ***,the improved Adaptive Data Rate algorithm(ADR)avoids the collision in concurrently transmitted data by using different Spreading Factors(SFs).The allocation of SF has the main role in designing LoRa based network to minimize the impact of the intra-interference,cost function,and Euclidean *** this purpose,the K-means machine learning algorithm is used for *** data rate model is using an intra-slicing technique based on Maximum Likelihood Estimation(MLE).The data rate model includes three critical communication slices,High Critical Communication(HCC),Medium Critical Communication(MCC),and Low Critical Communication(LCC),having the specified number of End devices(EDs),payload budget delay,and data ***,different combinations of gateways are

关键词： LoRa electronic shelf labels adaptive data rate backoff algorithm remote Acknowledgment

An Optimized Algorithm for CR-MIMO Wireless Networks

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Computers, Materials & Continua 2022年第4期71卷 697-715页

作者： imran khan Fahd N.Al-Wesabi Marwa Obayya Anwer Mustafa Hilal Manar Ahmed Hamza Mohammed Rizwanullah Fahad Ahmed Al-Zahrani Hirofumi Amano Samih M.Mostafa Department of Electrical Engineering University of Engineering&TechnologyPeshawarPakistan Department of Computer Science King Khalid UniversityMuhayel AseerKSA Department of Biomedical Engineering College of EngineeringPrincess Nourah bint Abdulrahman UniversitySaudi Arabia Department of Computer and Self Development Preparatory Year DeanshipPrince Sattam bin Abdulaziz UniversityAlKharjSaudi Arabia Computer Engineering Department Umm Al-Qura UniversityMecca24381Saudi Arabia Research Institute for Information Technology Kyushu UniversityFukuoka819-0395Japan Computer Science-Mathematics Department Faculty of ScienceSouth Valley UniversityQena83523Egypt

With the rapid development of wireless communication technology,the spectrum resources are increasingly strained which needs optimal *** radio(CR)is one of the key technologies to solve this *** sensing not only includes the precise detection of the communication signal of the primary user(PU),but also the precise identification of its modulation type,which can then determine the a priori information such as the PU’service category,so as to use this information to make the cognitive user(CU)aware to discover and use the idle spectrum more effectively,and improve the spectrum *** sensing is the primary feature and core part of *** sensing algorithms includes energy detection,cyclostationary feature detection,matched filter detection,and so *** energy detection algorithm has a simple structure and does not require prior knowledge of the PU transmitter signal,but it is easily affected by noise and the threshold is not easy to *** combination of multiple-input multiple-output(MIMO)with CR improves the spectral efficiency and multipath fading *** best utilize the PU spectrum while minimizing the overall transmit power,an iterative technique based on semidefinite programming(SDP)and minimum mean squared error(MMSE)is ***,this article proposed a new method for max-min fairness *** compared to existing algorithms,the simulation results show that the proposed algorithms perform better in terms of total transmitted power and signal-tointerference plus noise ratio(SINR).Furthermore,the proposed algorithm effectively improved the system performance in terms of number of iterations,interference temperature threshold and balance SINR level which makes it superior over the conventional schemes.

关键词： Cognitive radio spectrum utilization bandwidth primary user

A Game-Theoretic Approach to Safe Crowd Evacuation in Emergencies

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Computers, Materials & Continua 2024年第4期79卷 1631-1657页

作者： Maria Gul imran Ali khan Gohar Zaman Atta Rahman Jamaluddin Mir Sardar Asad Ali Biabani May IssaAldossary Mustafa Youldash Ashraf Saadeldeen Maqsood Mahmud Asiya Abdus Salam Dania Alkhulaifi Abdullah AlTurkey31Department of Computer Science COMSATS University IslamabadAbbottabad CampusAbbottabad22010Pakistan Department of Computer Science Abbottabad University of Science and TechnologyAbbottabad22010Pakistan Department of Computer Science College of Computer Science and Information TechnologyImam Abdulrahman Bin Faisal UniversityP.O.Box 1982Dammam31441Saudi Arabia Science and Technology Unit Umm Al-Qura UniversityMakkah21955Saudi Arabia Deanship of Scientific Research Umm Al-Qura UniversityMakkah21955Saudi Arabia Department of Computer Information Systems College of Computer Science and Information TechnologyImam Abdulrahman Bin Faisal UniversityP.O.Box 1982Dammam31441Saudi Arabia Department of Computer Engineering College of Computer Science and Information TechnologyImam Abdulrahman Bin Faisal UniversityP.O.Box 1982Dammam31441Saudi Arabia Department of Computer Science Faculty of Computer Science and Information TechnologyOmdurman Islamic UniversityOmdurman14415Sudan Business Analytic Program Department of Management and MarketingCollege of Business AdministrationUniversity of BahrainSakhir32038Bahrain

Obstacle removal in crowd evacuation is critical to safety and the evacuation system efficiency. Recently, manyresearchers proposed game theoreticmodels to avoid and remove obstacles for crowd evacuation. Game theoreticalmodels aim to study and analyze the strategic behaviors of individuals within a crowd and their interactionsduring the evacuation. Game theoretical models have some limitations in the context of crowd evacuation. Thesemodels consider a group of individuals as homogeneous objects with the same goals, involve complex mathematicalformulation, and cannot model real-world scenarios such as panic, environmental information, crowds that movedynamically, etc. The proposed work presents a game theoretic model integrating an agent-based model to removethe obstacles from exits. The proposed model considered the parameters named: (1) obstacle size, length, andwidth, (2) removal time, (3) evacuation time, (4) crowd density, (5) obstacle identification, and (6) route *** proposed work conducts various experiments considering different conditions, such as obstacle types, obstacleremoval, and several obstacles. Evaluation results show the proposed model’s effectiveness compared with existingliterature in reducing the overall evacuation time, cell selection, and obstacle removal. The study is potentially usefulfor public safety situations such as emergency evacuations during disasters and calamities.

关键词： Safe crowd evacuation public safety emergency transition probability cooperation

Assessment of Municipal Solid Waste Management in the Farmgate Area of Dhaka North City Corporation

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World Journal of Engineering and Technology 2024年第1期12卷 1-23页

作者： Seyedali Mirmotalebi Shoeb Rahman Mayida Rubya Tithi imran khan Apu Department of Computational Data Science and Engineering North Carolina A&T State University Greensboro North Caro-lina USA Department of Civil Engineering & Construction Georgia Southern University Statesboro Georgia USA Department of Tropical Hydrogeology and Environmental Engineering Technical University of Darmstadt Darmstadt Ger-many Department of Civil Engineering European University of Bangladesh Dhaka Bangladesh

This investigation is focused on conducting a thorough analysis of Municipal Solid Waste Management (MSWM). MSWM encompasses a range of interdisciplinary measures that govern the various stages involved in managing unwanted or non-utilizable solid materials, commonly known as rubbish, trash, junk, refuse, and garbage. These stages include generation, storage, collection, recycling, transportation, handling, disposal, and monitoring. The waste materials mentioned in this context exhibit a wide range of items, such as organic waste from food and vegetables, paper, plastic, polyethylene, iron, tin cans, deceased animals, byproducts from demolition activities, manure, and various other discarded materials. This study aims to provide insights into the possibilities of enhancing solid waste management in the Farmgate area of Dhaka North City Corporation (DNCC). To accomplish this objective, the research examines the conventional waste management methods employed in this area. It conducts extensive field surveys, collecting valuable data through interviews with local residents and key individuals involved in waste management, such as waste collectors, dealers, intermediate dealers, recyclers, and shopkeepers. The results indicate that significant amounts of distinct waste categories are produced daily. These include food and vegetable waste, which amount to 52.1 tons/day;polythene and plastic, which total 4.5 tons/day;metal and tin-can waste, which amounts to 1.4 tons/day;and paper waste, which totals 5.9 tons/day. This study highlights the significance of promoting environmental consciousness to effectively shape the attitudes of urban residents toward waste disposal and management. It emphasizes the need for collaboration between authorities and researchers to improve the current waste management system.

关键词： Solid Waste Management Dhaka North City Corporation Sustainable Growth Integrated Waste Management Practice Waste Recycling