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Energy-Efficient Multi-Trip Routing for Municipal Solid Waste Collection by Contribution-Based Adaptive Particle Swarm Optimization

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Complex System Modeling and Simulation 2023年第3期3卷 202-219页

作者： Xiaoning Shen Hongli Pan zhongpei ge Wenyan Chen Liyan Song Shuo Wang Collaborative Innovation Center of Atmospheric Environment and Equipment Technology and also with the Jiangsu Key Laboratory of Big Data Analysis TechnologySchool of AutomationNanjing University of Information Science and TechnologyNanjing 210044China School of Automation Nanjing University of Information Science and TechnologyNanjing 210044China Guangdong Provincial Key Laboratory of Brain-Inspired Intelligent Computation the Department of Computer Science and EngineeringSouthern University of Science and TechnologyShenzhen 518055China School of Computer Science University of BirminghamBirminghamB152TTUK

Waste collection is an important part of waste management *** costs and carbon emissions can be greatly reduced by proper vehicle ***,each vehicle can work again after achieving its capacity limit and unloading the *** this,an energy-efficient multi-trip vehicle routing model is established for municipal solid waste collection,which incorporates practical factors like the limited capacity,maximum working hours,and multiple trips of each *** both economy and environment,fixed costs,fuel costs,and carbon emission costs are minimized *** solve the formulated model effectively,contribution-based adaptive particle swarm optimization is *** strategies named greedy learning,multi-operator learning,exploring learning,and exploiting learning are specifically designed with their own searching *** assessing the contribution of each learning strategy during the process of evolution,an appropriate one is selected and assigned to each individual adaptively to improve the searching efficiency of the ***,an improved local search operator is performed on the trips with the largest number of waste sites so that both the exploiting ability and the convergence accuracy of the algorithm are *** of the proposed algorithm is tested on ten waste collection instances,which include one real-world case derived from the Green Ring Company of Jiangbei New District,Nanjing,China,and nine synthetic instances with increasing scales generated from the commonly-used capacitated vehicle routing problem benchmark *** with five state-of-the-art algorithms show that the proposed algorithm can obtain a solution with a higher accuracy for the constructed model.

关键词： municipal solid waste collection energy conservation multi-trip contribution particle swarm optimization

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基于离散混合蛙跳算法的地震应急物资调度

系统仿真学报 2024年第1期36卷 97-109页

作者：申晓宁葛忠佩姚铖滨宋丽妍王玉芳南京信息工程大学自动化学院江苏南京210044 江苏省大气环境与装备技术协同创新中心江苏南京210044 江苏省大数据分析技术重点实验室江苏南京210044 广东省类脑智能计算重点实验室(南方科技大学) 广东深圳518055

建立震后应急物资调度数学模型。该模型根据各灾区的受灾情况评估其救援紧急程度,并设计一种需求拆分供应的运输机制,提高车辆的利用效率。为求解该模型,提出一种多源信息学习的离散混合蛙跳算法。所提算法引入多种信息源以扩展算法的... 详细信息

建立震后应急物资调度数学模型。该模型根据各灾区的受灾情况评估其救援紧急程度,并设计一种需求拆分供应的运输机制,提高车辆的利用效率。为求解该模型,提出一种多源信息学习的离散混合蛙跳算法。所提算法引入多种信息源以扩展算法的搜索方向,降低种群的同化速度。同时,让子组最差个体学习种群中的有效信息,提高算法的收敛精度。实验结果表明,所提算法能够搜索到精度更优的调度方案,对问题规模具有良好的可扩展性。

关键词：应急物资调度混合蛙跳算法灾区紧急程度需求拆分供应车辆路径问题

Competitive access in multi-RAT systems with regulated interference constraints

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Science China(Information Sciences) 2017年第2期60卷 96-106页

作者： Ning WEI zhongpei ZHANG National Key Laboratory of Science and Technology on Communications University of Electronic Science and Technology of China

Deployment of multiple radio access technologies(RATs) at the same cell site enables the system to flexibly support different types of devices and services. Such multi-RAT systems call for an efficient utilization of the system resources as well as simplified management. In this paper, we take a user-centric approach and let each individual user equipment decide its own access strategy in a multi-RAT system with regulated interference constraints. The formulated problem is a generalized Nash equilibrium(GNE) problem. We show that there always exists a GNE but its uniqueness is not guaranteed. A closed form solution is provided to characterize a special class of the GNEs. We then propose a primal-dual algorithm with detailed convergence analysis for computing a GNE. The proposed algorithm may have practical implications in the design of multi-RAT systems.

关键词： 5G multi-RAT systems multiple access distributed algorithms generalized Nash equilibrium

Mode Selection for CoMP Transmission with Nonideal Synchronization

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China Communications 2018年第12期15卷 132-146页

作者： Zheqi Gu zhongpei Zhang Chengdu Research Institute HUAWEI Technology Co. Ltd National Key Laboratory of Science and Technology on Communications University of Electronic Science and Technology of China

This paper proposes a mode selection scheme to improve the spectral efficiency for coordinated multi-point(CoMP) transmission with phase synchronization errors(PSE). Upper bounds of average achievable rate for different CoMP transmission modes, such as coordinated beamforming(CB) and joint processing(JP), are derived by random matrix theory and asymptotic mathematical approximation. According to these upper bounds, the proposed scheme switches CoMP transmission mode between CB and JP adaptively to enhance the average achievable rate. Simulation results show that these upper bounds agree well with the average achievable rates for both JP and CB, and the proposed scheme outperforms traditional single mode CoMP transmission when PSE exist.

关键词： CoMP transmission synchronization errors precoding mode selection

Clustering Approaches for Overhead Reduction over Coordinated Multiple Points Network-MIMO Downlink Systems

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China Communications 2010年第5期7卷 103-111页

作者： Xiao Shanghui Zhang zhongpei Shi Zhiping National Key Lab of Communication University of Electronic Science and Technology of China Chengdu 611731 P. R. China School of Physics and Electronic Engineering Yibin University Yibin 644007 P. R. China National Mobile Communications Research Lab Southeast University Nanjing 211189 P. R. China

Owing to the potential for intercell cochannel interference mitigation and significant spectral efficiency improvement, coordinating transmission techniques by multiple radio access points have recently attracted a lot of attention. In this paper, the system structure and mathematical signal model based on clustered structure are presented for multipoint coordinating downlink transmission, the clustered supercell configurations with static/dynamic approaches are discussed, and then optimal precod- ing design is provided for an accepted level of scheduling complexity and reduced signaling over- head. Some simulation results are given to evaluate the performance of different cell-clustering approaches, and to show that a clustered supercell size of 7 is a reasonable choice for clustered coordination with the given transmit power and the reduced feedback.

关键词： overhead reduction clustering approa-ches supercell MIMO ss stems cooperative com-munication

The analysis of coverage probability,ASE and EE in heterogeneous ultra-dense networks with power control

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Digital Communications and Networks 2020年第4期6卷 524-533页

作者： Qiaoshou Liu zhongpei Zhang National Key Laboratory of Science and Technology on Communications University of Electronic Science and Technology of ChinaChengdu611731China Key Laboratory of Optical Communication and Networks Chongqing University of Posts and TelecommunicationsChongqing400065China

The ultra-dense network is a promising technology to increase the network capacity in the forthcoming fifthgeneration(5G)mobile communication networks by deploying lots of low power Small Base Stations(SBSs)which overlap with Macro Base Stations(MBSs).The interference and energy consumption increase rapidly with the number of SBSs although each SBS transmits with small *** this paper,we model a downlink heterogeneous ultra-dense network where a lot of SBSs are randomly deployed with MBSs based on the Poisson point *** derive the coverage probability and its variance,and analyze the area spectral efficiency and energy efficiency of the network considering three Fractional Power Control(FPC)*** numerical results and Monte Carlo simulation results show that power control can mitigate the interference and balance the performances of inner-user and edge-user ***,a great improvement of energy efficiency is archived with a little loss of area spectral efficiency when FPC is ***,we analyze the effect of base stations’(BSs’)sleeping on the performance of the network when it is partially loaded.

关键词： Heterogeneous ultra-dense network Poisson point process Coverage probability Area spectral efficiency Energy efficiency

Immunotherapy in hematologic malignancies:achievements,challenges and future prospects

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Signal Transduction and Targeted Therapy 2023年第9期8卷 4043-4081页

作者： Lu Tang zhongpei Huang Heng Mei Yu Hu Institute of Hematology Union HospitalTongji Medical CollegeHuazhong University of Science and Technology430022 WuhanChina Hubei Clinical Medical Center of Cell Therapy for Neoplastic Disease 430022 WuhanChina Key Laboratory of Biological Targeted Therapy the Ministry of Education430022 WuhanChina Hubei Key Laboratory of Biological Targeted Therapy Union HospitalTongji Medical CollegeHuazhong University of Science and Technology430022 WuhanChina

The immune-cell origin of hematologic malignancies provides a unique avenue for the understanding of both the mechanisms of immune responsiveness and immune escape,which has accelerated the progress of *** categories of immunotherapies have been developed and are being further evaluated in clinical trials for the treatment of blood cancers,including stem cell transplantation,immune checkpoint inhibitors,antigen-targeted antibodies,antibody-drug conjugates,tumor vaccines,and adoptive cell *** immunotherapies have shown the potential to induce long-term remission in refractory or relapsed patients and have led to a paradigm shift in cancer treatment with great clinical *** immunotherapeutic approaches have their advantages but also shortcomings that need to be *** provide clinicians with timely information on these revolutionary therapeutic approaches,the comprehensive review provides historical perspectives on the applications and clinical considerations of the ***,we first outline the recent advances that have been made in the understanding of the various categories of immunotherapies in the treatment of hematologic *** further discuss the specific mechanisms of action,summarize the clinical trials and outcomes of immunotherapies in hematologic malignancies,as well as the adverse effects and toxicity management and then provide novel insights into challenges and future directions.

关键词： clinical treatment shortcomings

Deformation patterns and hydrocarbon potential related to intracratonic strike-slip fault systems in the east of Central Uplift Belt in the Tarim Basin

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Energy geoscience 2022年第1期3卷 63-72页

作者： Fei Ning Jinbiao Yun zhongpei Zhang Peng Li Laboratory of Structural and Sedimentological Reservoir geology Exploration&Production Research InstituteSINOPECBeijing100083China Exploration&Production Research Institute SINOPECBeijing100083China geology and geophysics Department University of Wyoming82071USA

Strike-slip faults,proven to be closely linked to hydrocarbon migration and accumulation,are wide-spread in the Tarim Basin *** patterns in the eastern part of the Central Uplift Belt of the Tarim Basin are analyzed in detail to understand the deformation model and genetic mechanism of strike-slip faults,how their patterns impact reservoir formation and influence oil and gas *** tectonic events are taken into consideration to identify the primary factors that controlled the development of strike-slip faults in the *** Tazhong Uplift in the eastern part of Central Uplift Belt is believed to be a complex anticlinal uplift formed by compression-and-torsion acting on the Cambrian-Middle Ordovician platform during the middle-late Caledonian ***-stage development of this north-trending fault-fold belt and the NE-trending strike-slip faults make it structurally *** NE-trending Paleozoic strike-slip faults were formed jointly by the differential thrusting of the Tazhong Uplift along Fault No.Ⅰand the NE-trending shear sliding of the basal fault blocks during the middle-late Caledonian-early *** on the distribution of effective source rocks,the tectonic setting during the period critical to hydrocarbon accumulation,and the distribution of conductive faults,the northern slope of the Tazhong Upliftd-especially its west-central part where the NE-trending faults are developed is not only located close to the northern hydrocarbon source rock area but also possesses conditions suitable for the development of carbonate *** addition,the NE-trending faults provide passage for initial development of the reservoir and the subsequent migration of oil and gas from the Aman area to the uplifted zone,making the Tazhong Uplift an extremely favorable area for oil and gas accumulation with substantial potential for exploration.

关键词： Strike-slipfault Deformation pattern Hydrocarbon accumulation Craton Tarim basin

Collaborative beamforming based on directional perturbation using one bit feedback

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Journal of Systems Engineering and Electronics 2016年第3期27卷 549-554页

作者： Haifen Yang Ning Ding Zhi Zheng Shuisheng Lin zhongpei Zhang Guangjun Li School of Communication & Information Engineering University of Electronic Science and Technology of China

A novel collaborative beamforming algorithm is proposed in a wireless communication system with multiple transmitters and one receiver. All transmitters take part in the collaboration and the weighted message is transmitted simultaneously. In order to maximize the beamforming gain, the transmitters use one bit feedback information to adjust the phase offset. It tracks the direction in which the signal strength at the receiver can increase. The directional search and perturbation theory is used to achieve the phase alignment. The feasibility of the proposed algorithm is proved both experimentally and theoretically. Simulation results show that the proposed algorithm can improve the convergent speed of the phase alignment.

关键词： collaborative beamforming one-bit feedback directional perturbation convergent speed