Diffusion dynamics in external noise-activated non-equilibrium open system-reservoir coupling environment

The diffusion process in an external noise-activated non-equilibrium open system–reservoir coupling environment is studied by analytically solving the generalized Langevin equation. The dynamical property of the system near the barrier top is investigated in detail by numerically calculating the quantities such as mean diffusion path, invariance, barrier passing probability, and so on. It is found that, comparing with the unfavorable effect of internal fluctuations, the external noise activation is sometimes beneficial to the diffusion process. An optimal strength of external activation or correlation time of the internal fluctuation is expected for the diffusing particle to have a maximal probability to escape from the potential well.

Planning Management of Multiagent-based Distributed Open Computing Environment Model

his paper examines planning management problems in a Multiagentbased Distributed Open Computing Environment Model (MDOCEM). First the meaning of planning management in MDOCEM is introduced, and then a formal method to describe the associated task partition problems is presented, and a heuristic algorithm which gives an approximate optimum solution is given. Finally the task coordination and integration of execution results are discussed.

Research on Open Block's Pedestrian System Based on the EnvironmentBehavior Theory: A Case Study of Shenzhen Oct-loft

In the context of banning gated communities, blocks returning to the human-oriented scale become the new normal, and pedestrian system design will be paid more attention in the urban planning field. Oct-Loft Creative Park is a template for open blocks in Shenzhen, with a convenient and humanized pedestrian system. This paper selects the creative park's pedestrian system as the research object, using the environment-behavior theory for analysis. Finally, optimization strategies of pedestrian system will be put forward.

Sequential Extraction and Mobility Factor of Metals in the Urban Soil of Warri-Nigeria (A Case Study of the Environment of Esisi Open Dump)

Sequential fractionation of Cr, Zn, Pb and Mn in soil samples collected 5 m - 104 m away from Esisi open dump was determined to evaluate the potential health danger posed by the metals. Spatial test soil samples were collected at various increasing distances (5 m - 104 m) from the epicentre of the dump using a stainless steel auger. Tessier’s sequential extraction protocols were employed. The concentrations of the metals in the various fractions were determined, the fractions are exchangeable fraction, carbonate fraction, Fe-Mn oxide fraction, organic fraction and residual fraction. The metals were found mostly concentrated in the Fe-Mn oxide fraction. This study has provided information on the mobility factors and chemical forms of Cr, Zn, Pb and Mn in the soil of the environment of Esisi open dump and the environmental risk of the metals in the environment of Esisi open dump.

Application of the organic and environment evolving principle on the land reclamation in the open coal mines

According to the evolving principle of the organic and environment, firstly, for the purpose of growing and keeping the ground, some legume species were chosen as pioneer plants to improve the construction of soil and increased soil fertility in the light of the land term and soil condition. Along with soil fertility increased, it is necessary to culti-vate some shrubs and arbors which have extra resistance. Gradually it becomes the stereoscopic landscape of planting arbor-shrub-herb plants. So that the evolving of the organic and environment can be enhanced. Taking the land reclamation in the refuse dump of Heidaigou open coal mines as the practical example, explained the application of the organic and environment evolving principle on the land reclamation in the open coal mines.

ZTE Rolls Out New Unified Open Environment Platform

ZTE Corporation (ZTE),a leading global provider of telecommunications equipment and network solutions,on February 12,2009,released a unique Unified Open Environment (UOE) platform that will make it easier fortelecom operators

Nano-Electronic Simulation Software (NESS): A Novel Open-Source TCAD Simulation Environment

This paper presents the latest status of the open source advanced TCAD simulator called Nano-Electronic Simulation Software(NESS)which is currently under development at the Device Modeling Group of the University of Glasgow.NESS is designed with the main aim to provide an open,flexible,and easy to use simulation environment where users are able not only to perform numerical simulations but also to develop and implement new simulation methods and models.Currently,NESS is organized into two main components:the structure generator and a collection of different numerical solvers;which are linked to supporting components such as an effective mass extractor and materials database.This paper gives a brief overview of each of the components by describing their main capabilities,structure,and theory behind each one of them.Moreover,to illustrate the capabilities of each component,here we have given examples considering various device structures,architectures,materials,etc.at multiple simulation conditions.We expect that NESS will prove to be a great tool for both conventional as well as exploratory device research programs and projects.

Create an International Environment for the Peaceful and Steady Development to Boost the Sound Development of Human Rights on the International Stage——An Address at the Opening Ceremony of the 7th Beijing Forum on Human Rights, Spet. 17, 2014

Since its initiation in 2008, the Beijing Forum on Human Rights has been bent on promoting our mutual understanding and expanding our common grounds. It has carried out very fruitful exchanges and researches around many important questions concerning human rights development, and hence attained great achievements. It has played avery constructive role in promoting exchanges about and cooperation in human rights between China and other countries, becoming an important and influential platform for international dialogs over human rights.

低空智联网中基于多质心OpenMax的无人机开集识别方法

随着网络化、智能化的发展,无人机(Unmanned aerial vehicles, UAVs)逐渐成为低空智联网(Low-altitude intelligent network, LAIN)的重要组成部分,但如何对低空智联网中的无人机平台进行有效的管理仍面临严峻挑战。基于无人机信号中的细微特征可对无人机进行个体识别,并检测是否为非法无人机,从而实现低空智联网中无人机的身份识别和管理。针对低空领域信道环境复杂且无法提前获取非法无人机信号样本的问题,本文提出了基于差值时频和多质心OpenMax的无人机开集识别方法。首先,提出了与信道无关的差值时频特征来降低多径信道环境对射频指纹(Radio frequency fingerprinting, RFF)特征的影响,并利用数据增强提高了识别模型的准确率和鲁棒性。其次,利用多质心OpenMax替代神经网络Softmax层,以实现无人机个体的开集识别。最后,对神经网络的损失函数进行了改进,提高了开集识别准确率。本文利用真实环境采集的数据对所提算法进行了验证,在多径信道环境中开放度为0.087时,开集识别准确率达到了93.23%,与基准算法相比,准确率分别提高了7.61%和13.4%。本文提出的算法可在复杂信道环境中有效识别无人机个体并检测出首次出现的非法无人机。

Open-Air Quarries in the Urban Commune of Zinder (South-East Niger): An Opportunity with Strong Externalities

The framing of this theme would contribute to a better analysis of the benefits of open-air quarrying in Zinder, and should make it possible to understand and measure the socio-environmental externalities of this type of activity in an urban environment. The approach method consisted of carrying out surveys combined with field observations and interviews with the various stakeholders as well as the local population. The results obtained made it possible to identify both positive and negative impacts. The positive impacts are above all the advantages derived from these aggregate quarries, in particular, the creation of direct and permanent jobs and the increase in community income. The price of piling up a truck costs around 28,000 CFA ($56 CAN) and that of loading is around 10,000 F CFA ($20 CAN). This has the effect of removing young people (20 - 39 years old) from the circuit of migration outside the region and even the country. The possibility of using the extraction sites by the local population was identified, in terms of profits relating to fish farming, off-season crops, animal drinking and reclaimed plots. The study also noted negative externalities, such as the temptation of young boys to become involved in extractive activities for immediate gains at the expense of school attendance. Added to this is the upheaval in the topography of the urban landscape, pollution and nuisances (noise, visual and olfactory), while the disappearance or clogging of quarry ponds is the cause of frequent flooding in the neighborhoods. In short, corrective measures (e.g. the revegetation of sites) certainly make it possible to minimize the harmful impacts on the urban environment. But, to improve the performance and organizational capacity of the quarrying industry in Niger, even stronger regulation, training and awareness of stakeholders prove to be the necessary measures.

Open Space Planning and Design for the Old Campus of Southeast University

Open space is an important part of the campus landscape,and it is the material carrier which can implement the education idea of school.Through the transformation of the campus environment of Southeast University,the study analyzes of the concept and attributes of open space on campus,as well as the actual problems which should be noticed.

基于开源OpenAirInterface的LTE仿真环境构建方法

随着LTE体制的第四代移动通信网络在全球范围内快速部署,与LTE相关的研究需求越来越广泛,其中涉及网络安全、网络相关的增值业务、网络部署等技术领域。为了开展相关领域的技术研究,构建一种具有成本优势、兼具高逼真度仿真能力的实验环境非常必要。因此,提出一种基于OpenAirInterface开源项目的 LTE仿真环境构建方法,能够实现从LTE分组核心网到LTE无线系统的高逼真度仿真,且符合国际标准,可与商用系统灵活对接,是一种成本低廉、性能优异的LTE仿真方案,对于LTE网络相关技术研究具有很强的支撑作用。

开放性学习环境支持下的进阶式实验探究活动——从“摇绳发电”出发逐步建构地磁场模型

充分利用教材中的拓展性实验“摇绳发电”,创设开放性学习环境,以学习进阶作为探究活动设计的原点,挖掘探究活动的进阶动力,引导学生层层递进地展开探究活动,达成科学思维进阶,挖掘育人价值,实现深度学习.

Has China-ASEAN Trade opening increased China’ s carbon emissions?

This study uses carbon emission data at the provincial level in China between 1998-2018 and the proportion of the total import and export trade between provinces and the Association of Southeast Asian Nations(ASEAN)in GDP to measure the level of China-ASEAN trade openness.It examines the impact of China ASEAN trade openness on carbon emissions and its transmission mechanism,and selects the RMB/USD exchange rate as an instrumental variable to address the endogeneity of China-ASEAN trade openness variables.The impact of China-ASEAN trade openness on China’s environment is estimated within a two-stage least squares framework.The results show that trade openness between China and ASEAN positively impacts China’s environment and can facilitate carbon emission reduction.The scale,structural,and technology effects brought by China-ASEAN trade liberalization jointly promote China’s carbon dioxide emission reduction.An inverted“U”relationship is found between economic growth and environmental quality in China,and some provinces and municipalities have now crossed the inflection point of the curve,in which carbon emi ssions decrease with an increase in per capita wealth.

网络管理系统HP Open View结构及其开发应用环境分析

HP Open View为网络管理提供了功能比较强大的平台，通过 自带的应用程序，借助于其应用程序编程接口API，用户可容易地完成配置管理、失效管理 和性能管理等工作。对其图形用户界面作了全面说明，对开发环境作了分析。

制度型开放、营商环境改善与新质生产力发展——基于中国自由贸易试验区设立的准自然实验

自由贸易试验区作为新时期我国推进制度型开放的“试验田”,能否为新质生产力的培育提供助力并发挥先导示范作用,是当前政策层与学术界普遍关注的焦点议题。基于自贸区设立这一准自然实验,构建交错型倍差法模型实证检验制度型开放对新质生产力的影响效应和作用机制,结果发现制度型开放能显著促进新质生产力发展,自贸区的设立使所在地区新质生产力的发展水平平均提升了约7.490%。机制分析表明,制度型开放加快了市场制度的变革进程,改善了营商环境,从而有利于促进新质生产力的发展;异质性分析表明,制度型开放对新质生产力的促进效应存在差异,在自贸区设立时间较早和非正式制度较弱的地区更为明显。进一步分析表明,制度型开放具有显著的空间外溢效应,对毗邻省份新质生产力的发展具有辐射带动作用;自贸区制度创新水平越高、法律授权支持力度越大、产业集聚效应和吸引高端要素流动的效应越强,对新质生产力的促进效应越明显。研究结论对于进一步优化和完善自贸区建设、释放制度型开放红利、助推我国生产力能级跃迁具有重要启示意义。

基于双曲嵌入的露天矿区暗光环境下道路多目标检测模型

露天矿环境特殊,道路场景复杂多变,在光照不足时会导致矿区道路多目标识别不清、定位不准,进而影响检测效果,给矿区无人矿用卡车的安全行驶带来严重安全隐患。目前的道路障碍物检测模型不能有效解决矿区暗光环境对模型检测效果的影响,同时对矿区小目标障碍物的识别也有较大误差,不适用于矿区特殊环境下障碍物的检测与识别。针对上述问题,提出了一种基于双曲嵌入的露天矿区暗光环境下多目标检测模型。首先,在模型的图像预处理阶段引入卷积神经网路Retinex-Net对暗图像进行增强,提高图像清晰度;然后,针对数据集中特征过多而无重点偏好的问题,在加强特征提取部分添加全局注意力机制,聚集3个维度上更关键的特征信息;最后,在检测模型预测阶段引入双曲全连接层,以减少特征丢失,并防止过拟合现象。实验结果表明:(1)基于双曲嵌入的露天矿区暗光环境下道路多目标检测模型不仅对露天矿区暗光环境下的大尺度目标具有较高的分类与定位精度,对矿用卡车及较远距离的小尺度目标即行人也可准确检测与定位,能够满足无人矿用卡车在矿区特殊环境下驾驶的安全需求。(2)模型的检测准确率达98.6%,检测速度为51.52帧/s,较SSD、YOLOv4、YOLOv5、YOLOx、YOLOv7分别提高20.31%,18.51%,10.53%,8.39%,13.24%,对于矿区道路上的行人、矿用卡车及挖机的检测精度达97%以上。

以中国话语在生态环境法典中确认环境权

编纂生态环境法典作为重大政治任务和立法任务,已列入全国人大常委会2024年年度工作计划。通过法典编纂,将党的十八大以来生态文明建设理论、制度、实践成果以法典的形式确认下来,适应新时代我国社会主要矛盾新变化,回应人民群众对美好生态环境的新期盼,是生态环境法典编纂的目标和方向。在生态环境法典编纂研究中,我们要以习近平新时代中国特色社会主义思想特别是习近平生态文明思想和习近平法治思想为指引,坚持人民立场,认真对待生态环境新期盼带来的利益关系新变化;坚持改革开放,准确把握我国环境权益保护现状与政策取向;坚持道路自信,以中国话语在生态环境法典中确认环境权并作出一般规定、建立相应的保障制度和救济制度,提升中国生态环境治理体系与治理能力现代化水平,提供加强全球生态环境治理的中国方案。

服务业扩大开放政策对产业结构升级的影响——基于北京市服务业扩大开放综合试点的准自然实验

以北京市服务业扩大开放综合试点为研究对象,运用合成控制法实证考察了服务业扩大开放政策对北京市产业结构升级的影响效应及作用机制,结果显示:在产业整体层面,服务业扩大开放政策能够显著提升北京市的产业结构高级化水平,且随着政策的迭代调整,该政策对产业结构升级的促进作用逐年增大;同时,该政策能够有效促进本地劳动力要素向科技、金融等高端产业集聚,进而以人才驱动支撑服务业高端化发展。机制检验表明,该政策主要通过营商环境改善效应、资本积累效应及知识溢出效应等途径促进产业结构升级。对此,未来应进一步深化服务业扩大开放政策,注重引导高端产业的均衡发展与全面开放,强化制度创新及政策联动。