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基于多层ReLU网络的楼宇暖通空调系统能量管理策略

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电力系统自动化 2024年第15期48卷 84-91页

作者：王枭刘清 Alaa shakir 张靖邦王驰武汉理工大学自动化学院湖北省武汉市430070 武汉大学电气与自动化学院湖北省武汉市430072 国网辽宁省电力有限公司辽宁省沈阳市110004

提升现代智能楼宇的能量管理能力,是电力紧平衡背景下促进电网节能增效的重要举措。文中提出一种数据驱动的楼宇暖通空调系统节能控制策略,避免了传统模型预测控制对精确热力学建模的依赖。首先,在搭建楼宇热网络仿真模型的基础上,采用... 详细信息

提升现代智能楼宇的能量管理能力,是电力紧平衡背景下促进电网节能增效的重要举措。文中提出一种数据驱动的楼宇暖通空调系统节能控制策略,避免了传统模型预测控制对精确热力学建模的依赖。首先,在搭建楼宇热网络仿真模型的基础上,采用延时嵌入法构造输入特征,建立基于修正线性单元的多层神经网络模型,实现室内温度时间序列的多步预测。然后,针对电网的分时电价,构建滚动时域优化模型,并将其重构为混合整数线性规划的形式,实现有限控制周期内优化模型的高效求解。最后,基于Simscape搭建楼宇热仿真模型,验证了所提控制策略的有效性。仿真结果表明,所提策略能够满足温度舒适度要求,并提高楼宇的经济运行水平。

关键词：智能楼宇暖通空调能量管理模型预测控制修正线性单元数据驱动控制

Traffic Control Based on Integrated Kalman Filtering and Adaptive Quantized Q-Learning Framework for Internet of Vehicles

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Computer Modeling in Engineering & Sciences 2024年第3期138卷 2103-2127页

作者： Othman S.Al-Heety Zahriladha Zakaria Ahmed Abu-Khadrah Mahamod Ismail Sarmad Nozad Mahmood Mohammed Mudhafar shakir Hussein Alsariera Faculty of Electronic and Computer Engineering Universiti Teknikal Malaysia Melaka(UTeM)Durian TunggalMalaysia College of Computing&Informatics Saudi Electronic UniversityRiyadhSaudi Arabia Department of Electrical Electronic and System EngineeringUniversiti Kebangsaan MalaysiaUKM BangiSelangorMalaysia Computer Technology Engineering College of Engineering TechnologyAl-Kitab UniversityKirkukIraq Faculty of Engineering and Electronic Engineering Universiti Tun Hussein Onn Malaysia(UTHM)Batu PahatMalaysia 6Research Center DepartmentThe University of MashreqBaghdadIraq

Intelligent traffic control requires accurate estimation of the road states and incorporation of adaptive or dynamically adjusted intelligent algorithms for making the *** this article,these issues are handled by proposing a novel framework for traffic control using vehicular communications and Internet of Things *** framework integrates Kalman filtering and *** smoothing Kalman filtering,our data fusion Kalman filter incorporates a process-aware model which makes it superior in terms of the prediction *** traditional Q-learning,our Q-learning algorithm enables adaptive state quantization by changing the threshold of separating low traffic from high traffic on the road according to the maximum number of vehicles in the junction *** evaluation,the model has been simulated on a single intersection consisting of four roads:east,west,north,and south.A comparison of the developed adaptive quantized Q-learning(AQQL)framework with state-of-the-art and greedy approaches shows the superiority of AQQL with an improvement percentage in terms of the released number of vehicles of AQQL is 5%over the greedy approach and 340%over the state-of-the-art ***,AQQL provides an effective traffic control that can be applied in today’s intelligent traffic system.

关键词： Q-learning intelligent transportation system(ITS) traffic control vehicular communication kalman filtering smart city Internet of Things

Nanosecond pulse， dual-wavelength Q-switched 1.5 μm fiber laser using MAX phase CrTiAlCsaturable absorber

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Optoelectronics Letters 2024年

作者： AHMED shakir AL-HITI HIBA HASSAN Department of Electrical Engineering， Faculty of Engineering， University of Anbar Department of Laser and Optoelectronics Engineering， University of Technology-Iraq

We demonstrated a new type of MAX phase material， Chromium Titanium Aluminum Carbide (Cr2TiAlC2) polymer film to generate a passively Q-switched erbium-doped fiber laser. The film thickness was measured around 45 μm which was fabricated using the embedding method with PVA polymer as hoster. The SA film demonstrates a dual-wavelength passively Q-switched erbium-doped fiber laser （EDFL） which operates at 1531 nm and 1560.19 nm， respectively. The Q-switching pulse duration could be varied from 2.46 μs to 770 ns while the repetition rate varied from 92.76 kHz to 106.6 kHz with an increasing input pumping range of 154 mW to 300 mW. The maximum output power and pulse energy of 15.05 mW and 141.18 nJ were obtained at a maximum input power of 300 mW， respectively. To the best of our knowledge， this is the first time that on dual-wavelength Q-switched EDF laser by Cr2TiAlC2as SA.

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Flow Regimes in Bubble Columns with and without Internals: A Review

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Fluid Dynamics & Materials Processing 2024年第2期20卷 239-256页

作者： Ayat N.Mahmood Amer A.Abdulrahman Laith S.Sabri Abbas J.Sultan Hasan shakir Majdi Muthanna H.Al-Dahhan Department of Chemical Engineering University of Technology-IraqBaghdadIraq Chemical and Petroleum Industries Engineering Department Al-Mustaqbal University CollegeBabylonIraq Department of Chemical and Biochemical Engineering Missouri University of Science and TechnologyRollaUSA

Hydrodynamics characterization in terms ofﬂow regime behavior is a crucial task to enhance the design of bubble column reactors and scaling up related *** review presents recent studies on the typicalﬂow regimes established in bubble *** effort is also provided to introduce relevant deﬁnitions pertaining to thisﬁeld,namely,that of“void fraction”and related(local,chordal,cross-sectional and volumetric)*** studies involving different parameters that affect design and operating conditions are also discussed in *** the second part of the review,the attention is shifted to cases with internals of various types(perfo-rated plates,bafﬂes,vibrating helical springs,mixers,and heat exchanger tubes)immersed in the bubble *** is shown that the presence of these elements has a limited inﬂuence on the global column ***,they can make the homogeneousﬂow regime more stable in terms of transition gas velocity and transi-tion holdup *** last section is used to highlight gaps which have not beenﬁlled yet and future directions of investigation.

关键词： Hydrodynamics ﬂow regime bubble column heat-exchanging internals

Role of artificial intelligence in colorectal cancer

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Artificial Intelligence in Gastrointestinal Endoscopy 2024年第2期5卷 31-40页

作者： Gita Lingam Taner shakir Rawen Kader Manish Chand Department of General Surgery Princess Alexandra HospitalHarlow CM201QXUnited Kingdom Department of Colorectal Surgery University College LondonLondon W1W 7TYUnited Kingdom Department of Gastroenterology University College LondonUniversity College London Hospitals Nhs Foundation TrustLondon W1BUnited Kingdom Gastroenterological Intervention Centre University College LondonLondon W1W 7TSUnited Kingdom

The sphere of artificial intelligence(AI)is ever *** for clinical practice have been emerging over recent *** its uptake has been most prominent in endoscopy,this represents only one aspect of holistic patient *** are a multitude of other potential avenues in which gastrointestinal care may be *** aim to review the role of AI in colorectal cancer as a *** performed broad scoping and focused searches of the applications of AI in the field of colorectal *** trials including qualitative research were included from the year 2000 *** were grouped into pre-operative,intra-operative and post-operative ***,the major use is with endoscopic *** has embraced the use for human derived classifications such as Narrow-band Imaging International Colorectal Endoscopic,Japan Narrow-band Imaging Expert Team,Paris and ***,novel detection and diagnostic methods have arisen from advances in AI ***-operatively,adjuncts such as image enhanced identification of structures and assessment of perfusion have led to improvements in clinical ***-operatively,monitoring and surveillance have taken strides with potential socioeconomic and environmental *** uses of AI within the umbrella of colorectal surgery are *** have identified existing technologies which are already augmenting cancer *** future applications are exciting and could at least match,if not surpass human standards.

关键词： Artificial intelligence Colorectal cancer Pre-operative Intra-operative Post-operative Adjuncts Colonoscopy

Interference Mitigation in D2D Communication Underlying Cellular Networks:Towards Green Energy

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Computers, Materials & Continua 2021年第7期68卷 45-58页

作者： Rana zeeshan Ahamad Abdul Rehman Javed shakir Mehmood Mohammad Zubair Khan Abdulfattah Noorwali muhammad Rizwan Department of Computer Science Xian Jiaotong UniversityXi’anChina Department of Cyber Security Air UniversityIslamabadPakistan Department of Information and Technology Northwest UniversityXianChina Department of Computer Science College of Computer Science and EngineeringTaibah UniversityMadinahSaudi Arabia Department of Electrical Engineering Umm Al-Qura UniversityMakkahSaudi Arabia Department of Computer Science Kinnaird College for WomenLahore54000Pakistan

Device to Device(D2D)communication is emerging as a new participant promising technology in 5G cellular networks to promote green energy networks.D2D communication can improve communication delays,spectral efficiency,system capacity,data off-loading,and many other fruitful scenarios where D2D can be ***,induction of D2D communication in reuse mode with the conventional cellular network can cause severe interference issues,which can significantly degrade network *** reap all the benefits of induction of D2D communication with conventional cellular communication,it is imperative to minimize interference’s detrimental *** power control can minimize the negative effects of interference and get benefits promised by D2D *** this work,we propose two power control schemes,Power Control Scheme 1(PCS 1)and Power Control Scheme 2(PCS 2),to minimize the interference and provide performance *** results observe improvements with PCS 1 and PCS 2 as compared to without using any power control scheme in terms of data rate in both uplink and downlink communication modes of Cellular User Equipment(CUE).

关键词： Interference mitigation green IoT green networks D2D power control spectral efficiency reuse mode

MET receptor tyrosine kinase promotes the generation of functional synapses in adult cortical circuits

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Neural Regeneration Research 2025年第5期20卷 1431-1444页

作者： Yuehua Cui Xiaokuang Ma Jing Wei Chang Chen Neha shakir Hitesch Guirram Zhiyu Dai Trent Anderson Deveroux Ferguson Shenfeng Qiu Basic Medical Sciences University of Arizona College of Medicine-PhoenixPhoenixAZUSA Department of Medicine University of Arizona College of Medicine-PhoenixPhoenixAZUSA

Loss of synapse and functional connectivity in brain circuits is associated with aging and neurodegeneration,however,few molecular mechanisms are known to intrinsically promote synaptogenesis or enhance synapse *** have previously shown that MET receptor tyrosine kinase in the developing cortical circuits promotes dendritic growth and dendritic spine *** investigate whether enhancing MET in adult cortex has synapse regenerating potential,we created a knockin mouse line,in which the human MET gene expression and signaling can be turned on in adult(10–12 months)cortical neurons through doxycycline-containing *** found that similar to the developing brain,turning on MET signaling in the adult cortex activates small GTPases and increases spine density in prefrontal projection *** findings are further corroborated by increased synaptic activity and transient generation of immature silent *** MET signaling resulted in an increasedα-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid/N-methyl-Daspartate(AMPA/NMDA)receptor current ratio,indicative of enhanced synaptic function and *** data reveal that enhancing MET signaling could be an interventional approach to promote synaptogenesis and preserve functional connectivity in the adult *** findings may have implications for regenerative therapy in aging and neurodegeneration conditions.

关键词： aging circuit connectivity cortical circuits molecular mechanisms neural regeneration neurodegeneration synapses

Solving the Generalized Traveling Salesman Problem Using Sequential Constructive Crossover Operator in Genetic Algorithm

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Computer Systems Science & Engineering 2024年第5期48卷 1113-1131页

作者： Zakir Hussain Ahmed Maha Ata Al-Furhood Abdul Khader Jilani Saudagar shakir Khan Department of Mathematics and Statistics College of ScienceImam Mohammad Ibn Saud Islamic University(IMSIU)Riyadh11432Saudi Arabia Department of Computer Science College of Computer and Information SciencesJouf UniversitySakakah42421Saudi Arabia Information Systems Department Imam Mohammad Ibn Saud Islamic University(IMSIU)Riyadh11432Saudi Arabia College of Computer and Information Sciences Imam Mohammad Ibn Saud Islamic University(IMSIU)Riyadh11432Saudi Arabia

The generalized travelling salesman problem(GTSP),a generalization of the well-known travelling salesman problem(TSP),is considered for our *** the GTSP is NP-hard and very complex,finding exact solutions is highly expensive,we will develop genetic algorithms(GAs)to obtain heuristic solutions to the *** GAs,as the crossover is a very important process,the crossovermethods proposed for the traditional TSP could be adapted for the *** sequential constructive crossover(SCX)and three other operators are adapted to use in GAs to solve the *** effectiveness of GA using SCX is verified on some GTSP Library(GTSPLIB)instances first and then compared against GAs using the other crossover *** computational results show the success of the GA using SCX for this *** proposed GA using SCX,and swap mutation could find average solutions whose average percentage of excesses fromthe best-known solutions is between 0.00 and 14.07 for our investigated instances.

关键词： Generalized travelling salesman problem NP-hard genetic algorithms sequential constructive crossover swap mutation

Evolution of Coulomb failure stress in Sulaiman Lobe,Pakistan,and its implications for seismic hazard assessment

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Earth and Planetary Physics 2023年第2期7卷 282-294页

作者： Aiza Amjad muhammad Shahid Riaz Urooj shakir muhammad Younis Khan muhammad Ali Shah Bahria School of Engineering and Applied Sciences H-11 CampusBahriaBahria UniversityIslamabadPakistan Centre for Earthquake Studies National Centre for PhysicsIslamabadPakistan National Centre of Excellence in Geology University of PeshawarPeshawarPakistan GIS and Space Applications in Geosciences(G-SAG)Lab National Center of GIS and Space Applications(NCGSA)IslamabadPakistan

In this research work,we present the evolution of Coulomb failure stress(CFS)in the Sulaiman Lobe and its implications for seismic hazard *** Chaman transform fault,~1,000 km long,is the major active fault that marks the western boundary between Pakistan and Afghanistan on the Indian *** date,few studies have been conducted to unveil the interactions among earthquakes and the implications of these interactions for seismic hazard assessment in the *** thoroughly investigated the published and online catalog to construct a sequence of major earthquakes that occurred in this region during the *** final earthquake sequence was composed of 15 earthquakes of M_(w)≥6.0,beginning with the 1888 *** used the stress-triggering theory to numerically simulate the evolution of CFS caused by these *** numerical results revealed that 8 out of 15earthquakes were triggered by the preceding *** earthquakes in 1908,1910,1935,1966,and 1997 were rather independent earthquakes in this *** the epicenters of the 1975a and 1975b earthquakes were in the stress shadow zone,the partial rupture segments of both these earthquakes were in high-CFS *** CFS induced by the 1935 earthquake was notable,as it later triggered the 2008 ***,our results revealed that the northern segment of the Chaman Fault,the southern segment of the Ghazaband Fault,and the northwestern segment of the Urghargai Fault demonstrated a high change in CFS that could trigger seismicity in these *** necessary arrangements must therefore be made to mitigate any possible seismic hazards in the region.

关键词： Sulaiman Thrust Sulaiman Lobe earthquake triggering Coulomb failure stress seismic hazard assessment