Further development and sustainable utilization mode of grassland tourism resources: a case study of Inner Mongolia Autonomous Region, China

Tourism resources are important foundation for the development of tourism industry.Grassland is not only a kind of important resource but also a great attraction to visitors.Therefore,the integrated development and sustainable utilization of grassland tourism resources are of great significance.This paper,based on the analysis of literatures and the current problems existing in grassland tourism,summarizes the speciality of grassland tourism development,deals nation as example and carries out empirical research.Based on the status quo of grassland tourism resources in Inner Mongolia,this study analyzes the characteristics of grassland tourism resources,the necessity and feasibility of integrated development,then proposes the following suggestions： idea for development,mode of development,regional cooperation,tourism products development,especially the three modes of development based on the resources conditions - the mode of relying on market,the mode of combination aggregation and the mode of relying on quality.

Study on Sustainable Utilization of Resources of the Damp-heat Karst Mountainous Areas in China

Damp-heat karst mountainous areas are unique areas in terms of socialeconomic development, resource endowment and eco-environment in China, where natural resources are abundant,unique and diverse. However, fragile eco-environment, undeveloped economy and culture, and conflict of human and environment should not be ignored. In the research, a framework of integration of resource-development and environment-protection in damp-heat karst was designed on basis of resource and environment integration, which was applied to Daxin County in Guangxi Province. Furthermore, some integration models were proposed, including integration of development of characteristic agricultural resources and protection of eco-environment, integration of development of manganese ore resources and protection of eco-environment, integration of development of tourism resources and protection of ecoenvironment and integration of development of clean energy and protection of eco-environment.

The status quo and prospect of geothermal resources exploration and development in Beijing-Tianjin-Hebei region in China

The Beijing-Tianjin-Hebei region boasts rich geothermal resources and new achievements have been made in the exploration and development of geothermal resources in this region based on previous regional investigation.In detail,geothermal reservoirs of Gaoyuzhuang Formation of Jixian System and Changcheng System in Xiongan New Area have been recently discovered,opening up the second space of geothermal resources;the calculation method of the recoverable resources of geothermal fluid with reinjection being considered has been improved in Beijing-Tianjin-Hebei region,and uniform comprehensive assessment of shallow geothermal energy,hydrothermal geothermal resources,and hot dry rocks(HDR)geothermal resources in the whole Beijing-Tianjin-Shijiazhuang region has been completed.The scientific research base for cascade development and utilization of geothermal resources in Beijing-Tianjin-Hebei region has applied hydraulic fracturing technology to the geothermal reservoirs in Gaoyuzhuang Formation.As a result,the production capacity doubled and two-stage cascade utilization composed of geothermal power generation and geothermal heating were realized,with the first-phase installed capacity of 280 kW and the geothermal heating is 30000 m2.In this way,a model of the exploration,development,and utilization of geothermal resources formed.Large-scale utilization has become the future trend of geothermal resource development in Beijing-Tianjin-Hebei region,and great efforts shall be made to achieve breakthroughs in reinjection technology,geothermal reservoir reconstruction technology,thermoelectric technology and underground heat exchange technology.

Tasks-Oriented Joint Resource Allocation Scheme for the Internet of Vehicles with Sensing, Communication and Computing Integration

With the development of artificial intelligence(AI)and 5G technology,the integration of sensing,communication and computing in the Internet of Vehicles(Io V)is becoming a trend.However,the large amount of data transmission and the computing requirements of intelligent tasks lead to the complex resource management problems.In view of the above challenges,this paper proposes a tasks-oriented joint resource allocation scheme(TOJRAS)in the scenario of Io V.First,this paper proposes a system model with sensing,communication,and computing integration for multiple intelligent tasks with different requirements in the Io V.Secondly,joint resource allocation problems for real-time tasks and delay-tolerant tasks in the Io V are constructed respectively,including communication,computing and caching resources.Thirdly,a distributed deep Q-network(DDQN)based algorithm is proposed to solve the optimization problems,and the convergence and complexity of the algorithm are discussed.Finally,the experimental results based on real data sets verify the performance advantages of the proposed resource allocation scheme,compared to the existing ones.The exploration efficiency of our proposed DDQN-based algorithm is improved by at least about 5%,and our proposed resource allocation scheme improves the m AP performance by about 0.15 under resource constraints.

Conjunctive Utilization of Water Resources at the Yulin Coal-Mine Base in China

Shortages in water resources and the fragile ecosystem by coal-mine water affect the Yulin coal-mine base in northwest China, so taking coal-mine water into account is an important issue for the sustainable management of water resources. This paper aims to explore how the Yulin coal-mine base can improve its conjunctive utilization of water resources. Integrated utilization is proposed by establishing a multi-objective, multi-water-source, optimal-allocation model;setting up an integrated information platform;and giving very useful measures and policy suggestions to the local government. Finally, this research can also serve as an example of integrated water utilization for other energy bases.

Federated Learning for 6G:A Survey From Perspective of Integrated Sensing,Communication and Computation

With the rapid advancements in edge computing and artificial intelligence,federated learning(FL)has gained momentum as a promising approach to collaborative data utilization across organizations and devices,while ensuring data privacy and information security.In order to further harness the energy efficiency of wireless networks,an integrated sensing,communication and computation(ISCC)framework has been proposed,which is anticipated to be a key enabler in the era of 6G networks.Although the advantages of pushing intelligence to edge devices are multi-fold,some challenges arise when incorporating FL into wireless networks under the umbrella of ISCC.This paper provides a comprehensive survey of FL,with special emphasis on the design and optimization of ISCC.We commence by introducing the background and fundamentals of FL and the ISCC framework.Subsequently,the aforementioned challenges are highlighted and the state of the art in potential solutions is reviewed.Finally,design guidelines are provided for the incorporation of FL and ISCC.Overall,this paper aims to contribute to the understanding of FL in the context of wireless networks,with a focus on the ISCC framework,and provide insights into addressing the challenges and optimizing the design for the integration of FL into future 6G networks.

基于资源整合的E-Learning系统研究

讨论了E-Learning的基本概念及意义,分析了国内外部分高校E-Learning系统研究现状,指出了目前我国高校电子资源的建设和使用现状,提出了资源整合的必要性,给出了资源整合的基本思路,并将其应用在E-Learning系统设计中。通过对E-Learn-ing系统的探索与实践提出了建设与完善高校电子教参资料系统的对策,提高了电子资源的利用率。

基于数字图书馆的e-Learning资源整合

开发e-Learning系统是数字图书馆发展的一个方向。从明确学习者需求入手,分析了基于数字图书馆的e-Learning资源整合优势,构建了网格技术下的e-Learning体系构架,并在此基础上给出了基于数字图书馆的e-Learning资源整合方案。

Learning Community视阈下地方师范院校教师资源整合

在对Learning Community介绍的基础上,分析了其在中国实现的可能性,在LearningCommunity视阈下,以创新的专门用途英语教学实现专业教师和外语教师的教师和教学资源整合为例,探讨地方师范院校教师资源整合。

基于Q-Learning的虚拟机动态伸缩算法

针对大规模云环境中业务量变化时平台服务质量和资源消耗的问题,提出一种基于Q-Learning的虚拟机扩容/缩容决策算法。将该问题转换为马尔科夫决策模型,为了在业务平台服务质量和资源消耗之间取得较好的平衡,智能体根据平台当前状态计算出最佳策略,执行决策并转到下一状态。仿真结果表明,该算法可根据业务量的变化实时作出伸缩决策,并提供最合适的虚拟机资源以满足业务需求,且能提高平台的稳定性。

农村灰水一体化PMBF处理技术研究

针对农村灰水水量大、污染物浓度低、易于处理和资源化利用的特点,结合农村灰水一体化处理技术欠缺及资源化利于水平低的现状,研发了以“强化预处理+多介质渗滤”为主体工艺并优化集成的农村灰水一体化PMBF处理技术。取化粪池上清液调配至目标水质作为中试装置的进水,稳定运行后,主要污染物指标COD、NH_(4)^(+)-N、TN、TP去除率分别为76.2%、77.4%、14.8%、11.5%,出水可达到农村生活污水污染物排放要求,消毒后可满足《城市污水再生利用城市杂用水水质》(GB/T 18920-2020)中道路清扫、绿化、建筑等用水需求。一体化PMBF工艺占地面积小,运行维护管理简单,经济成本低,设计规模10 m^(3)/d的处理设施,吨水占地约2 m^(2)/m^(3),吨水建设成本约7000元/m^(3),吨水运行成本约0.2元/m^(3)。

基于案例+问题+资源多元并轨教学模式用于乳腺罕见病教学的教案编写

目的本研究拟明确乳腺罕见病教学名录及教学内容,并以基于案例+问题+资源多元并轨教学模式完成教案编写。方法以文献计量学的方法回顾获得1975年1月至2024年6月的乳腺罕见病相关文献共6291篇,开展引用分析、关键词共现分析,获得初步候选乳腺罕见疾病;并在《罕见病学》《中国罕见病参考名录》《第二批罕见病目录》中进一步检索,合并筛选教学内容。结果在16387个关键词中,共现分析筛选获得1000个(6.1%)关键词,含50个(0.3%)候选病种,按照原发于乳腺的罕见病、特定胚系基因突变相关罕见疾病累及乳腺,以及全身多系统罕见病累及乳腺等3种情况进行分类总结。从候选目录中,进一步筛选获得20个(0.1%)具有较为显著临床教学意义的乳腺原发罕见病,以及通常需要诊治处理的、乳腺受累情况在全身多系统疾病中具有重要意义的基因突变或无明确突变的多系统全身罕见病,根据不同疾病临床特点及不同教学模式侧重点,总结撰写多元并轨教学教案。结论本研究初步确立了乳腺罕见病教学内容,并以案例+问题+资源多元并轨教学模式,针对每个乳腺罕见病的重点教学内容完成了教案编写。

铁路应急场景下无人机通信感知一体化无线网络资源智能分配算法

面向恶劣自然环境下地面基础设施受损的铁路场景,该文提出一种无人机(UAV)通信感知一体化无线接入网络架构,实现对列车运行环境的实时感知及应急信息回传。考虑到无人机的续航能力有限,通过建立列车制动距离模型与无人机能耗模型,在满足信息回传通信性能与列车环境感知需求的情况下,联合调整无人机飞行速度和通信发射功率以优化无人机整体能耗。通过分析发现,该优化问题符合马尔可夫决策过程(MDP),基于此,提出一种基于深度双Q网络(DDQN)的无人机通信感知一体化无线资源智能分配算法解决上述问题。最后,该文对所提算法的收敛性能、无人机环境感知距离和无人机能耗进行了仿真实验。仿真结果显示,所提算法具有良好的收敛性能,在满足铁路应急场景环境感知及信息回传需求的同时,能够最大化无人机通信作业时长。

基于深度强化学习的空天地一体化网络资源分配算法

空天地一体化网络(SAGIN)通过提高地面网络的资源利用率可以有效满足多种业务类型的通信需求,然而忽略了系统的自适应能力和鲁棒性及不同用户的服务质量(QoS)。针对这一问题,该文提出在空天地一体化网络架构下,面向城区和郊区通信的深度强化学习(DRL)资源分配算法。基于第3代合作伙伴计划(3GPP)标准中定义的用户参考信号接收功率(RSRP),考虑地面同频干扰情况,以不同域中基站的时频资源作为约束条件,构建了最大化系统用户的下行吞吐量优化问题。利用深度Q网络(DQN)算法求解该优化问题时,定义了能够综合考虑用户服务质量需求、系统自适应能力及系统鲁棒性的奖励函数。仿真结果表明,综合考虑无人驾驶汽车,沉浸式服务及普通移动终端通信业务需求时,表征系统性能的奖励函数值在2 000次迭代下,相较于贪婪算法提升了39.1%;对于无人驾驶汽车业务,利用DQN算法进行资源分配后,相比于贪婪算法,丢包数平均下降38.07%,时延下降了6.05%。

园区一体化工业固体废弃物资源化商业模式研究

在我国工业化快速发展的过程中,工业园区起到了非常重要的作用,促进了产业结构的调整和产业的集聚升级,但是伴随着工业固体废弃物资源化规模的不断扩大,园区固体废弃物利用方面也出现了循环化改造效果欠佳、固体废弃物交易规模受限等问题,现有的以PPP模式为首的多种固体废弃物处理处置商业模式也显现出弊端。基于我国工业园区固体废弃物资源化的发展情况,梳理了固体废弃物资源化主要的PPP商业模式并揭示其存在的问题,创新性地开发了园区一体化工业固体废弃物资源化商业模式并构建了商业模式画布对其进行分析,为固体废弃物资源化利用行业提供了可行的商业模式作为参考,并提出了相关政策建议。

基于均衡认知负荷的学习平台设计研究

针对网络教学平台教学模式单一、功能体系不全、交互性不强等现实问题,本文将均衡认知负荷理论应用于教学平台设计,构建了预习、学习、复习、作业及问答五个学习环节为一体的学习平台来解决上述问题。文章分析了学习过程认知负荷变化规律及调节策略,提出了多环节一体化学习平台的设计思路与设计原则,构建了一种新型的一体化学习平台,并将其运用于课程教学。实践表明,基于该学习平台的教学效果良好,对增强教学效果有着重要的意义。

气候适应视角下南疆荒漠绿洲城镇水城融合模式研究

受南疆荒漠绿洲地区气候约束及人为影响,城镇地表水时空分配不均现象严重,传统水资源利用模式难以满足现代绿洲发展需求。针对城镇转型中水源紧缺、气候约束下的治水考验、水城分离下的服务缺失等问题,通过循环调蓄一体化的水网格局重塑、防洪景观与生态修复的在地性设计、绿洲特色滨水功能服务体系搭建,激发水资源综合服务潜力,促进现代荒漠绿洲水城融合。

构建生态资源再循环利用下的现代种养结合生产经营方式研究

种养结合是传统的农业生产经营方式,不仅促进了种植业和养殖业的发展,也实现了农业内部物质和能量的相互交换以及原料和废弃物资源的相互利用。然而,随着工业化和化学农业的兴起,种养结合的内在循环体系逐渐割裂,对农业生态资源系统造成了掠夺性破坏。因此,必须加快构建生态资源再循环利用下的现代种养结合的生产经营方式。建立现代种养结合的生态资源循环利用系统,应以种植业和养殖业间的内在循环系统为依托,拓展农业发展空间,延伸农业产业链和价值链,并通过构建4种生产经营模式和3种生产经营管理方法,促进系统有效运转,进而最终实现城乡产业融合,优化区域产业结构,促进农村一、二、三产业融合发展。

太忻一体化经济区医养旅游资源空间分布及利用模式

医养旅游资源是从区域性“旅医养资源融合”视角重新定义旅游资源,以当地居民作为旅游发展的最大受益者进行研究。借助GIS空间处理方法,结合最邻近指数、基尼系数、核密度分析法和规模度指数等方法分析太忻一体化经济区医养旅游资源空间分布特征及利用模式。研究表明太忻一体化经济区医养旅游资源空间分布特征有4方面:(1)医养旅游资源呈现“总体离散、局部集聚”的空间分布特征;(2)12个市区县内医养旅游资源分布具有不均衡性;(3)南部地区的医养旅游资源规模最大、最集中;(4)太忻一体化经济区的医养旅游资源空间分布的密集区域,即迎泽区、万柏林区、杏花岭区、尖草坪区,与其人口分布密集区域几乎一致。在对医养旅游资源空间分布进行分析的基础上提出以下利用思路:(1)主客共享的“旅医养融合”发展模式;(2)在产业融合发展基础上构建医养旅游产业集聚模式。通过研究为实现太忻一体化经济区空间优化和高质量发展提供理论依据。

文旅融合背景下高校图书馆民族文化资源的保护与利用研究

民族文化资源作为中华民族文化的重要组成部分,对促进民族地区文旅融合深度发展有着不可替代的作用。高校图书馆在民族文化资源保护与利用方面存在理念滞后、模式单一等突出问题。基于高校图书馆保护利用民族文化资源具有提供信息资源与搭建信息传播平台等优势,提出文旅融合背景下高校图书馆民族文化资源的保护策略与利用路径,旨在实现民族文化资源与当地旅游建设的有机结合,为民族地区文化旅游产业可持续发展提供有效资源。