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| 1 | Serious games in science education:a systematic literature review显示文摘Teaching science through computer games,simulations,and artificial intelligence(AI)is an increasingly active research field.To this end,we conducted a systematic literature review on serious games for science education to reveal research trends and patterns.We discussed the role of virtual reality(VR),AI,and augmented reality(AR)games in teaching science subjects like physics.Specifically,we covered the research spanning between 2011 and 2021,investigated country-wise concentration and most common evaluation methods,and discussed the positive and negative aspects of serious games in science education in particular and attitudes towards the use of serious games in education in general. | Mohib ULLAH Sareer Ul AMIN Muhammad MUNSIF Muhammad Mudassar YAMIN Utkurbek SAFAEV Habib KHAN Salman KHAN Habib ULLAH | 2022 | Virtual Reality & Intelligent Hardware2022,4,3: | 2 |
| 2 | 女性小微创业者面临的挑战——巴基斯坦女性创业者个人工作和生活的协调措施显示文摘21世纪以来,越来越多的女性小微创业者活跃在商业界,但是女性创业者比男性创业者面临着更多的困难与障碍。该研究重点讨论女性小微企业家在创业时面临的障碍及平衡工作和生活的措施。通过对500名小微创业者发放调查问卷,对女性创业者平衡工作和个人生活关系的影响因素进行分析,通过变量的相互关系研究,提出女性企业家在协调工作和个人生活关系时,需要注意以下因素影响:创业资金和资源的限制,陈规陋习的束缚,失业威胁和工作挑战,绩效评估体系,家庭支持的缺乏,社会不公平待遇,婚姻状况和父母关系的影响,个人身体情况和男性主宰的实际情况等。为了更好地帮助妇女创业,政府应该出台相应的扶持女性创业的政策,并提供资金支持和创业知识技能培训,让女性创业者提高其企业经营管理能力,让她们为自己、为自己的家庭,并最终为整个国家的社会经济作出贡献。 | RIAZ Ahmad 米红 AMIN Ullah 任珂瑶 KHALI DKhan | 2018 | 苏州市职业大学学报2018,29,4: | 1 |
| 3 | Anomaly Based Camera Prioritization in Large Scale Surveillance Networks显示文摘Digital surveillance systems are ubiquitous and continuously generate massive amounts of data,and manual monitoring is required in order to recognise human activities in public areas.Intelligent surveillance systems that can automatically identify normal and abnormal activities are highly desirable,as these would allow for efficient monitoring by selecting only those camera feeds in which abnormal activities are occurring.This paper proposes an energy-efficient camera prioritisation framework that intelligently adjusts the priority of cameras in a vast surveillance network using feedback from the activity recognition system.The proposed system addresses the limitations of existing manual monitoring surveillance systems using a three-step framework.In the first step,the salient frames are selected from the online video stream using a frame differencing method.A lightweight 3D convolutional neural network(3DCNN)architecture is applied to extract spatio-temporal features from the salient frames in the second step.Finally,the probabilities predicted by the 3DCNN network and the metadata of the cameras are processed using a linear threshold gate sigmoid mechanism to control the priority of the camera.The proposed system performs well compared to state-of-theart violent activity recognition methods in terms of efficient camera prioritisation in large-scale surveillance networks.Comprehensive experiments and an evaluation of activity recognition and camera prioritisation showed that our approach achieved an accuracy of 98%with an F1-score of 0.97 on the Hockey Fight dataset,and an accuracy of 99%with an F1-score of 0.98 on the Violent Crowd dataset. | Altaf Hussain Khan Muhammad Hayat Ullah Amin Ullah Ali Shariq Imran Mi Young Lee Seungmin Rho Muhammad Sajjad | 2022 | Computers, Materials & Continua2022,,2: | 1 |
| 4 | Impact of Accelerated Ultraviolet Weathering on Polymeric Composite Insulators Under High Voltage DC Stress显示文摘This study investigates the weatherability of room temperature vulcanized(RTV)silicone rubber(SiR)and epoxybased material specimens with a composition of different nano and micro fillers against the collegial effects of high voltage DC,UV and temperature stresses.Bulk power transmission over long distances via HVDC is considered an economic option these days,so to ensure the system reliability,it is also critical to investigate these insulators under DC stress along with other environmental stresses(especially UV and temperature).For experimentation,composite samples i.e.neat epoxy(NE),epoxy with 15%micro SiO_(2)(EMS),epoxy with 5%nano SiO_(2)(ENS),neat SiR(NS),SiR with 15%micro SiO_(2)(SMS)and SiR with 5%nano SiO_(2)(SNS)are fabricated and subjected to accelerated aging in a weather chamber for 3,360 hours.Results reveal that SMS and SNS offer better hydrophobic behavior followed by EMS.However noticeable surface discoloration in the form of whitish shade with minor blackish spots is found in the case of SMS,while remaining samples also showed considerable color fading.Scanning electron microscopy(SEM)and Fourier Transform Infrared Spectroscopy(FTIR)results showed that SNS and SMS presented quite excellent resistance to the exposure of fillers.Hardness and weight of all specimens are evaluated throughout the experiment and particularly for the water immersion test.Moreover,leakage current analysis indicated that SNS and SMS revealed high leakage current suppression compare to other samples.Findings indicate that SNS and SMS showed enhanced resistance against UV weathering under high voltage direct current stress. | Israr Ullah Muhammad Amin Haider Hussain M.Tariq Nazir | 2022 | CSEE Journal of Power and Energy Systems2022,8,3: | 1 |
| 5 | Study on the synthesis of spin labeled poly(styrene-co-maleic acid)s and their segmental motion显示文摘Study of the segmental mobility of polymer chains is important when the polymer is used as drag reduction agents of crude oil.Electron spin resonance(ESR)spectroscopy can provide important information about segmental dynamics of polymer chains,which is related to their microenvironment.In this article,we employed an amphiphilic polymer to study the effect of hydrophilic/hydrophobic balance of the polymers on the segmental motion of polymer chains.Poly(styrene-co-maleic acid)(PSMA)was spin labeled with 4-amino TEMPO radicals by increasing the concentration of radical moiety on the polymer chains.The PSMA and spin labeled-PSMAs(SL-PSMAs)were characterized by nuclear magnetic resonance(NMR),Fourier transform infrared(FT-IR)spectroscopy,Cyclic voltammetry(CV)and ESR techniques.Inter-polymer complexes(IPCs)of SL-PSMA-2 were prepared by employing polyethylene glycols(PEGs)of varying molecular weights.The results showed that the increased hydrophobic interactions of nitroxide radicals on the SLPSMAs’chains reduced the rotational mobility of spin labels and the random coil-toglobular transition of polymer chains occurred at higher pH value for SL-PSMAs,which showed a slow motion component in the ESR spectra of SL-PSMAs.Further,by increasing the molecular weight of PEGs in IPCs the complexation was increased,which also reduced the rotational motion of spin labels due to interpolymer hydrogen bonding causing a slow motion component in the ESR spectra.©2021 The Authors. | Kaleem-Ur-Rahman Naveed Li Wang Haojie Yu Qian Zhang Wei Xiong Raja Summe Ullah Ahsan Nazir Muhammad Usman Shah Fahad Amin Khan Md Alim Uddin Di Shen | 2022 | Magnetic Resonance Letters2022,2,2: | 1 |
| 6 | Simulating AODV and DSDV For A dynamic Wireless Sensor Networks 显示文摘 | F Ullah M Amin H UI Ghaffar | 2010 | International Journal of Computer Science and Network Security (S1738-7906)2010,10,7: | 1 |
| 7 | A staggering rise of HIV cases in Pakistan显示文摘In the last decade,Pakistan has experienced multidemics of HIV in key populations,namely:injecting drug users,male sex with male,female sex workers,transgender sex workers,and transgenders.According to recent reports,in Pakistan,210000 people with HIV accounts for less than 0.2%of the general population. | Abdullah Riaz Muhammad Muhammad Salman Abid Hussain Amin Ullah Muddasir Khan | 2023 | Asian Pacific Journal of Tropical Medicine2023,16,3: | 1 |
| 8 | Wheat Yield Response to Foliar Fungicide Application against Leaf Rust Caused by Puccinia triticina显示文摘 | Krishna Dev Joshi Ghulam Ullah Attiq Ur Rehman Muhammad Makky Javaid Javed Ahmad Makhdoom Hussain Angela Pacheco Ibni Amin Khalil Amanullah Baloch | 2017 | Journal of Agricultural Science and Technology(A)2017,7,3: | 0 |
| 9 | Efficient two-dimensional atom localization in a five-level conductive chiral atomic medium via birefringence beam absorption spectrum显示文摘We have theoretically investigated two-dimensional atom localization using the absorption spectra of birefringence beams of light in a single wavelength domain.The atom localization is controlled and modified through tunneling effect in a conductive chiral atomic medium with absorption spectra of birefringent beams.The significant localization peaks are investigated in the left and right circularly polarized beam.Single and double localized peaks are observed in different quadrants with minimum uncertainty and significant probability.The localized probability is modified by controlling birefringence and tunneling conditions.These results may be useful for the capability of optical microscopy and atom imaging. | Sajid Ali Muhammad Idrees Bakth Amin Bacha Arif Ullah Muhammad Haneef | 2021 | Communications in Theoretical Physics2021,73,1: | 0 |
| 10 | Robust Counting in Overcrowded Scenes Using Batch-Free Normalized Deep ConvNet显示文摘The analysis of overcrowded areas is essential for flow monitoring,assembly control,and security.Crowd counting’s primary goal is to calculate the population in a given region,which requires real-time analysis of congested scenes for prompt reactionary actions.The crowd is always unexpected,and the benchmarked available datasets have a lot of variation,which limits the trained models’performance on unseen test data.In this paper,we proposed an end-to-end deep neural network that takes an input image and generates a density map of a crowd scene.The proposed model consists of encoder and decoder networks comprising batch-free normalization layers known as evolving normalization(EvoNorm).This allows our network to be generalized for unseen data because EvoNorm is not using statistics from the training samples.The decoder network uses dilated 2D convolutional layers to provide large receptive fields and fewer parameters,which enables real-time processing and solves the density drift problem due to its large receptive field.Five benchmark datasets are used in this study to assess the proposed model,resulting in the conclusion that it outperforms conventional models. | Sana Zahir Rafi Ullah Khan Mohib Ullah Muhammad Ishaq Naqqash Dilshad Amin Ullah Mi Young Lee | 2023 | Computer Systems Science & Engineering2023,46,9: | 0 |
| 11 | Negotiation Based Combinatorial Double Auction Mechanism in Cloud Computing显示文摘Cloud computing is a demanding business platform for services related to the field of IT.The goal of cloud customers is to access resources at a sustainable price,while the goal of cloud suppliers is to maximize their services utilization.Previously,the customers would bid for every single resource type,which was a limitation of cloud resources allocation.To solve these issues,researchers have focused on a combinatorial auction in which the resources are offered by the providers in bundles so that the user bids for their required bundle.Still,in this allocation mechanism,some drawbacks need to be tackled,such as due to the lower average bid price the users are dropped from the auction process.To solve this problem,we proposed a“Negotiation based Combinatorial Double Auction Mechanism for Resource Allocation(N-CDARA)in cloud computing”.The proposed method negotiates with dropped users.Lower average bid price users are asked by our proposed mechanism to increase their bids,as by the quoted bids they will be dropped by the auctioneer.Most of the users that are close to winning accept the proposal and increase their bid prices.The proposed mechanism is implemented in a CloudSim simulation toolkit.Results are compared with the latest model and performance study shows that in our proposed scheme more users win and get their requested services and the utilization of offered services is increased up to 18.4%than the existing schemes. | Zakir Ullah Asif Umer Mahdi Zaree Jamil Ahmad Faisal Alanazi Noor Ul Amin Arif Iqbal Umar Ali Imran Jehangiri Muhammad Adnan | 2021 | Computers, Materials & Continua2021,,11: | 0 |
| 12 | Spatial-dependent probe transmission based high-precision two-dimensional atomic localization显示文摘Herein,we propose a scheme for the realization of two-dimensional atomic localization in aλ-type three-level atomic medium such that the atom interacts with the two orthogonal standing-wave fields and a probe field.Because of the spatially dependent atom-field interaction,the information about the position of the atom can be obtained by monitoring the probe transmission spectra of the weak probe field for the first time.A single and double sharp localized peaks are observed in the one-wavelength domain.We have theoretically archived high-resolution and high-precision atomic localization within a region smaller thanλ/25×λ/25.The results may have potential applications in the field of nano-lithography and advance laser cooling technology. | Muhammad Idrees Humaira Kalsoom Bakth Amin Bacha Arif Ullah Li-Gang Wang | 2021 | Communications in Theoretical Physics2021,73,4: | 0 |