Multi-stage attack weapon target allocation method based on defense area analysis

For better reflecting the interactive defense between targets in practical combat scenarios,the basic weapon-target allocation(WTA)framework needs to be improved.A multi-stage attack WTA method is proposed.First,a defense area analysis is presented according to the targets’positions and the radii of the defense areas to analyze the interactive coverage and protection between targets’defense areas.Second,with the coverage status and coverage layer number,a multi-stage attack planning method is proposed and the multi-stage attack objective function model is established.Simulation is conducted with interactive defense combat scenarios,the traditional WTA method and the multi-stage WTA method are compared,and the objective function model is validated with the Monte-Carlo method.The results suggest that if the combat scenario involves interactive coverage of targets’defense areas,it is imperative to analyze the defense areas and apply the multi-stage attack method to weakening the target defense progressively for better combat effectiveness.

CAS-based Water Resources Optimal Allocation and Dynamic Simulation for Sewage Irrigation Area

Based on the theory of complex adaptive system(CAS),the optimal allocation model of water resources in sewage irrigation areas was established,which provided new ideas and application value for the rational utilization of agricultural production and waste water resources.The results demonstrated that the difference of crop energy capture mainly depended on the development stage.Waste water with a certain concentration was able to promote crop growth,while excessive concentration inhibited crop growth.The correlation between water absorption rate and leaf area index was close(R=0.9498,p<0.01).The amount of bad seeds increased at a speed of 34.7·d^-1,when system irrigated randomly in the seedling stage,while it tended to remain stable at a speed of 0.3·d^-1 after plants entering the mature stage which impacted the total yields of crops.

MAC Layer Resource Allocation for Wireless Body Area Networks

Wireless body area networks （WBANs） can provide low-cost, timely healthcare services and are expected to be widely used for e-healthcare in hospitals. In a hospital, space is often limited and multiple WBANs have to coexist in an area and share the same channel in order to provide healthcare services to different patients. This causes severe interference between WBANs that could significantly reduce the network throughput and increase the amount of power consumed by sensors placed on the body. There-fore, an efficient channel-resource allocation scheme in the medium access control （MAC） layer is crucial. In this paper, we devel-op a centralized MAC layer resource allocation scheme for a WBAN. We focus on mitigating the interference between WBANs and reducing the power consumed by sensors. Channel and buffer state are reported by smartphones deployed in each WBAN, and channel access allocation is performed by a central controller to maximize network throughput. Sensors have strict limitations in terms of energy consumption and computing capability and cannot provide all the necessary information for channel allocation in a timely manner. This deteriorates network performance. We exploit the temporal correlation of the body area channel in order to minimize the number of channel state reports necessary. We view the network design as a partly observable optimization prob-lem and develop a myopic policy, which we then simulate in Matlab.

AUCTIONING METHOD FOR AIRSPACE CONGESTING RESOURCE ALLOCATION AND GAME EQUILIBRIUM ANALYSIS

The airspace congestion is becoming more and more severe.Although there are traffic flow management（TFM）initiatives based on CDM widely applied,how to reschedule these disrupted flights of different airlines integrating TFM initiatives and allocate the limited airspace resources to these airlines equitably and efficiently is still a problem.The air traffic management（ATM）authority aims to minimizing the systemic costs of congested airspaces.And the airlines are self-interested and profit-oriented.Being incorporated into the collaborative decision making（CDM）process,the airlines can influence the rescheduling decisions to profit themselves.The airlines maybe hide the flight information that is disadvantageous to them,but is necessary to the optimal system decision.To realize the coincidence goal between the ATM authority and airlines for the efficient,and equitable allocation of airspace resources,this paper provides an auction-based market method to solve the congestion airspace problem under the pre-tactic and tactic stage of air traffic flow management.Through a simulation experiment,the rationing results show that the auction method can decrease the total delay costs of flights in the congested airspace compared with both the first schedule first service（FSFS）tactic and the ration by schedule（RBS）tactic.Finally,the analysis results indicate that if reallocate the charges from the auction to the airlines according to the proportion of their disrupted flights,the auction mechanism can allocate the airspace resource in economy equitably and decrease the delay losses of the airlines compared with the results of the FSFS tactic.

Differences in functional traits and reproductive allocations between native and invasive plants

Because co-occurring native and invasive plants are subjected to similar environmental selection pressures,the differences in functional traits and reproductive allocation strategies between native and invasive plants may be closely related to the success of the latter.Accordingly,this study examines differences in functional traits and reproductive allocation strategies between native and invasive plants in Eastern China.Plant height,branch number,reproductive branch number,the belowground-to-aboveground biomass ratio,and the reproductive allocation coefficient of invasive plants were all notably higher than those of native species.Additionally,the specific leaf area(SLA)values of invasive plants were remarkably lower than those of native species.Plasticity indexes of SLA,maximum branch angle,and branch number of invasive plants were each notably lower than those of native species.The reproductive allocation coefficient was positively correlated with reproductive branch number and the belowground-to-aboveground biomass ratio but exhibited negative correlations with SLA and aboveground biomass.Plant height,branch number,reproductive branch number,the belowground-to-aboveground biomass ratio,and the reproductive allocation coefficient of invasive plants may strongly influence the success of their invasions.

GRAPH-THEORETIC ALGORITHM FOR SPECTRUM ALLOCATION IN IEEE 802.22 WIRELESS MESH NETWORK

The IEEE 802.22 standard based on wireless Cognitive Radio (CR) is an optimal solution to resolve the inefficient spectrum utility problem. In this paper, we focus on the spectrum allocation in IEEE 802.22 mesh networks and propose a new graph-theory algorithm. The algorithm aims at two objectives: one is the sum of the allocated channel bandwidth is maximum, and the other is the number of users can be active simultaneity is maximum. In this proposed algorithm, the topology of network was modeled as a general graph and could be transformed into a weighted complete bipartite-graph by three processes. The simulations show that the presented algorithm can improve the performance of spectrum allocation.

Resource Allocation for Uplink CSI Sensing Report in Multi-User WLAN Sensing

Sensing in wireless local area network(WLAN) gains great interests recently. In this paper we focus on the multi-user WLAN sensing problem under the existing 802.11 standards. Multiple stations perform sensing with the access point and transmit channel state information(CSI)report simultaneously on the basis of uplink-orthogonal frequency division multiple access(OFDMA). Considering the transmission resource consumed in CSI report and the padding wastage in OFDMA based CSI report, we optimize the CSI simplification and uplink resource unit(RU)allocation jointly, aiming to balance the sensing accuracy and padding wastage performances in WLAN sensing. We propose the minimize padding maximize efficiency(MPME) algorithm to solve the problem and evaluate the performance of the proposed algorithm through extensive simulations.

“三类六区”单井效益评价方法在油田配产中的应用

油气田上游企业单独配置产量与成本造成资源配置长期不均衡的现象,传统按油井能力配产已无法满足油田高质量、可持续发展的需求,投资、成本、产量等资源如何合理配置是油田生产经营中需要解决的难题。为此,以油井为单元建立“三类六区”效益评价方法,引入最低变动成本识别无效益产量,在此基础上通过最低变动成本及单井效益贡献值的统一优化排序,利用盈亏平衡、成本最低及利润最大三种模型测算经济产量规模,以指导高成本及无效益产量进行效益优化,提出分类治理措施。此研究应用于制定XJ油田效益配产方案,基于油田能力配产方案及成本预算方案,以油田盈亏平衡产量、成本最低产量及利润最大产量为参考,调整产量规模、优化配置成本,得到量效兼顾产量方案,为油田生产经营决策提供依据。

基于自发数据传输的高效双LAN太赫兹无线局域网MAC协议

针对现有的双局域网(LAN)太赫兹无线局域网(Dual-LAN THz WLAN)相关介质访问控制(MAC)协议中存在的某些节点会在多个超帧内重复发送相同的信道时隙请求帧以申请时隙资源以及网络运行的一些时段存在空闲时隙等问题,提出一种基于自发数据传输的高效MAC协议——SDTE-MAC(high-Efficiency MAC protocol based on Spontaneous Data Transmission)。SDTE-MAC通过让各节点都维护一张或多张时间单元链表,使各节点与其余节点在网络运行时间上达到同步,从而获悉各节点应该在信道空闲时隙的什么位置开始发送数据帧,优化了传统的信道时隙分配和信道剩余时隙再分配的流程,提高了网络吞吐量和信道时隙利用率,降低了数据时延,能够进一步提升双LAN太赫兹无线局域网的性能。仿真结果表明,网络饱和时,相较于AHT-MAC(Adaptive High Throughout multi-pan MAC protocol)中的N-CTAP(Normal Channel Time Allocation Period)时段时隙资源分配新机制以及自适应缩短超帧时段机制,SDTE-MAC的MAC层吞吐量提升了9.2%,信道时隙利用率提升了10.9%,数据时延降低了22.2%。

广西边境地区县域卫生资源配置状况研究

目的分析广西边境地区县域卫生资源配置现状及其公平性,为优化县域卫生资源配置提供参考。方法收集广西边境地区8个县域2015—2021年的卫生资源数据,从人口、地理两个维度评价县域卫生资源配置的公平性。结果2015—2021年,广西边境地区8个县域的卫生资源总体呈逐年增加的趋势,但大部分县域千人口床位数、执业(助理)医师数、注册护士数低于广西平均水平;按人口配置的各类卫生资源公平性的基尼系数优于按地理配置的。结论应强化政府在卫生资源配置中的宏观调控功能,进一步提高广西边境地区卫生资源配置水平;加大边境地区县域卫生人力资源投入力度,持续提升卫生人力资源供给能力;多措并举,稳定边境地区村卫生室人员队伍;优化边境地区县域卫生资源空间布局,保障卫生资源配置的公平性。

基于体育强省建设的城乡公共体育资源优化配置研究

以体育强省建设为视角,分析黑龙江省牡丹江市城乡社区公共体育资源现状及体育强省建设对资源配置的影响,结合理论分析和逻辑分析的方法研究牡丹江市城乡社区公共体育资源,构建基于体育强省的牡丹江市城乡公共体育资源配置的优化路径,探索提升公共体育资源利用率的有效途径,满足城乡群众的体育健身需求,促进全民健身和体育强省建设水平的提升,为优化城乡公共体育资源配置提供一定的科学依据。

面向高质量发展的缺水地区水资源优化配置模型及应用

科学合理的水资源配置方案是实现北方缺水地区高质量发展的重要基础。在系统梳理相关研究成果的基础上,分析北方缺水地区水资源特点和未来配置需求,提出面向高质量发展的北方缺水地区水资源优化配置模型框架。从目标函数、约束条件、参数设置、算法设计等方面开展系统建模,并从惯性权重与学习因子两个角度对传统粒子群算法进行改进和有效性检验。最后,将模型和算法应用于北方典型缺水城市阳泉市的水资源配置方案研究。结果表明:阳泉市工业和生活用水具有较大节水潜力,平定县是最大用水户;规划水平年节水情景显著提升了缺水地区的需水满足程度和水生态环境承载能力;构建的高质量发展目标和北方缺水地区关键约束的水资源优化配置模型具有可行性。

基于目标暴露区的地面防空兵力最佳配置区规划

利用远距离支援干扰存在的目标暴露区,通过优化配置地面防空兵力,可有效降低干扰对我方地面防空作战的不利影响。在“三点一线”干扰模式分析的基础上,利用雷达干扰方程得到目标暴露区,提出了基于目标暴露区的地面防空兵力可配置区及横向、纵向兵力配置间距计算方法,并根据雷达有效干扰扇面,得到地面防空兵力干扰威胁指数计算模型。在此基础上,构建以干扰威胁指数总量最小为目标函数,以兵力可配置区及兵力配置间距为约束条件的远距离支援干扰下地面防空兵力最佳配置规划模型。采用基于线性递减权重函数的改进萤火虫优化(improved glowworm swarm optimization,IGSO)算法对其求解并进行了有效性仿真验证,结果表明所提出的规划模型具有较好的理论价值。

数字新质生产力对城乡高质量融合的影响与机制

数字新质生产力能够深刻改变城市与农村生产及生活方式,对城乡高质量融合具有重要意义。基于2009—2022年我国30个省份(未含香港地区、澳门地区、台湾地区及西藏地区)面板数据,利用固定效应模型、中介效应模型及门限效应模型,实证检验数字新质生产力对城乡高质量融合的影响和作用机制。研究发现,数字新质生产力能够显著促进城乡高质量融合、产业结构升级、公共服务均等化,特别是资源要素配置优化在数字新质生产力对城乡高质量融合的影响中起中介作用。数字新质生产力对城乡高质量融合的促进作用具有边际效应递增的非线性特征,产业结构升级、资源要素配置优化、公共服务均等化对这种非线性影响具有强化作用。数字新质生产力对城乡高质量融合的影响具有地区异质性,从线性影响看,在东部地区最强,在中部地区其次,在西部地区最弱;从非线性影响看,数字新质生产力的影响在东部和西部地区存在单一门限效应,在中部地区存在双重门限效应。为促进城乡高质量融合,应积极推动生产要素数字化转型,加快数字新质生产力形成;驱动产业结构升级,为城乡高质量融合提供动力;畅通资源要素流动渠道,优化资源要素配置;加强公共服务配套设施建设,助力公共服务均等化;结合地区特点,因地制宜培育数字新质生产力。

规划水资源论证与保护——以安徽霍邱经济开发区为例

规划水资源论证作为水资源管理的核心环节,对于保障城市、土地、人口与产业的协调发展,以及实现经济、社会、人口、资源和环境的和谐共生具有深远的意义。经济开发区规划水资源论证是在开发区利用水资源过程中贯彻落实《水法》的重要环节,也是保障开发区规划合理、科学的重要举措,需要高度重视,采取科学的方法实现具体论证,确保开发区水资源的合理规划与可持续利用。以安徽霍邱经济开发区为例,基于对该区域水资源的全面评估,分析规划对水资源需求的合理性和水源保障的可靠性。同时,从供水保障能力,水功能区纳污能力等角度出发,对水资源适应性进行详细探讨。提出旨在加强开发区水资源节约、保护和管理的对策建议。研究成果对于指导类似地区开展规划水资源论证具有重要的参考和借鉴价值。

民族地区医疗卫生资源配置效率:空间差异、动态演进与影响因素研究

基于健康中国战略背景,测算民族地区医疗卫生资源配置效率的全要素生产率,衡量民族地区医疗卫生资源配置的差异来源及演变态势。从区域差异、动态变化层面对医疗卫生配置效率进行多维分解,利用LSDVC检验影响因素。研究发现:民族地区医疗卫生资源配置效率的全要素生产率呈现逐年增长趋势,整体上表现出明显的“南高北低”空间格局;民族地区医疗卫生资源配置效率的差距主要由西南和西北区域内差异造成,区域内部的差异仍持续扩大,西北内部极化较为明显,组间差异有所削减;LSDVC-2结果显示,人口密度、人口老龄化和财政转移支付对医疗卫生资源配置水平具有显著的影响。我国民族地区医疗卫生资源配置效率整体显著提高,但配置效率赶超表现较差,区域内部差异仍旧扩大,需要重视区域发展不均衡问题,规避增长陷阱,注重区域层面医疗卫生资源结构的因地制宜,实施推动医疗卫生资源均等化的务实举措。

Online task planning method of anti-ship missile based on rolling optimization

Based on the wave attack task planning method in static complex environment and the rolling optimization framework, an online task planning method in dynamic complex environment based on rolling optimization is proposed. In the process of online task planning in dynamic complex environment,online task planning is based on event triggering including target information update event, new target addition event, target failure event, weapon failure event, etc., and the methods include defense area reanalysis, parameter space update, and mission re-planning. Simulation is conducted for different events and the result shows that the index value of the attack scenario after re-planning is better than that before re-planning and according to the probability distribution of statistical simulation method, the index value distribution after re-planning is obviously in the region of high index value, and the index value gap before and after re-planning is related to the degree of posture change.

农村黑臭水体污染物削减量分配研究

随着城乡经济的不断发展和人民生活水平的提高,农村地区的污染问题日益凸显,其中黑臭水体问题是一大难题。为改善水环境质量,有序开展农村黑臭水体治理工作,以浠水县农村黑臭水体为例,计算浠水县农村黑臭水体污染负荷情况。基于农村黑臭水体的水环境容量,计算各控制单元的削减量,对污染物的削减量进行分层级分配的研究,建立削减量分配模型,确定不同水体的主要污染源及对应的不同污染源的削减量,提高污染治理的效果和可持续性,从而实现精准治污、科学治污。

南水北调中线工程受水区年度水量分配方法研究

南水北调中线一期工程已正式通水运行近10 a,随着受水区各省(直辖市)配套设施不断建成,水量消纳能力逐步提高,在水源区供水有限的情况下,受水区之间竞争性用水问题日益突出。基于南水北调中线工程设计成果,提出一种基于受水区各省(直辖市)设计多年平均分配比例的南水北调中线工程年度水量分配方法。该方法将可调水量按各省(直辖市)设计多年平均分配比例进行分配,所得结果为各省(直辖市)的年度可调水量初始分配值,进而取该值与该省(直辖市)用水计划建议的较小值作为其年度分配水量;最后以南水北调中线工程可调水量80亿m^(3)为例开展计算。结果表明:根据受水区4省(直辖市)用水计划建议分析水量分配面临情况,提出北京市、天津市、河北省、河南省分配的水量分别为10.4亿,8.56亿,28亿,30亿m^(3)。该方法可为南水北调中线工程年度水量调度计划编制提供参考,为保障工程效益的发挥提供支撑。