Pumping-induced Well Hydraulics and Groundwater Budget in a Leaky Aquifer System with Vertical Heterogeneity in Aquitard Hydraulic Properties

In groundwater hydrology,aquitard heterogeneity is often less considered compared to aquifers,despite its significant impact on groundwater hydraulics and groundwater resources evaluation.A semi-analytical solution is derived for pumping-induced well hydraulics and groundwater budget with consideration of vertical heterogeneity in aquitard hydraulic conductivity(K)and specific storage(S_(s)).The proposed new solution is innovative in its partitioning of the aquitard into multiple homogeneous sub-layers to enable consideration of various forms of vertically heterogeneous K or S_(s).Two scenarios of analytical investigations are explored:one is the presence of aquitard interlayers with distinct K or S_(s) values,a common field-scale occurrence;another is an exponentially depth-decaying aquitard S_(s),a regional-scale phenomenon supported by statistical analysis.Analytical investigations reveal that a low-K interlayer can significantly increase aquifer drawdown and enhance aquifer/aquitard depletion;a high-S_(s) interlayer can noticeably reduce aquifer drawdown and increase aquitard depletion.Locations of low-K or high-S_(s) interlayers also significantly impact well hydraulics and groundwater budget.In the context of an exponentially depth-decaying aquitard S_(s),a larger decay exponent can enhance aquifer drawdown.When using current models with a vertically homogeneous aquitard,half the sum of the geometric and harmonic means of exponentially depth-decaying aquitard S_(s) should be used to calculate aquitard depletion and unconfined aquifer leakage.

Optimization Analysis of Comprehensive Budget Management from the Perspective of Digital Restructuring:Taking a Water Company as an Example

This article takes water enterprises as the research object,exploring the organic combination of comprehensive budget management under the trend of digitalization and digital technology in the new era,as well as the process of management system reform.Introduce the current status of its budget management work,comprehensively analyze the architecture and operation mode of the current comprehensive budget management system of water enterprises,and evaluate and analyze the overall situation and shortcomings of its budget management system based on financial data such as budget formulation and execution.From the perspective of digital restructuring and upgrading of comprehensive budget management work,corresponding countermeasures are proposed to make up for the shortcomings and suggestions for the future development of the enterprise’s comprehensive budget.

Discussion on Construction Project Cost Budget Settlement Review

Construction project cost control involves many complex contents,forming a large amount of data information.If the processing method is unreasonable,it will likely affect the cost control efficiency.Therefore,in the current construction project management,the review of project cost budget settlement is the focus to solve the cost management problems of construction projects and promote the development of the construction industry.This article mainly analyzes the influencing factors and current situation of construction project cost budget settlement review,and based on this,it explores the project cost budget settlement review strategy to promote the healthy development of construction project cost work.

Discussion on Cost Budgeting and Cost Control Strategies for Prefabricated Construction Projects

In the process of China’s national economic development,the construction industry is a very important component and has a direct impact on the level of China’s economic construction.Nowadays,the development speed of the prefabricated construction industry is constantly accelerating.To effectively ensure the economic benefits of engineering projects,it is necessary to comprehensively strengthen cost budgeting and cost control.This article analyzes the cost budget of prefabricated construction projects,introduces the application advantages of prefabricated construction,and proposes specific cost budgeting and cost control measures,hoping to provide some reference for relevant researchers.

Link Budget and Enhanced Communication Distance for Ambient Internet of Things

Backscatter communications will play an important role in connecting everything for beyond 5G(B5G)and 6G systems.One open challenge for backscatter communications is that the signals suffer a round-trip path loss so that the communication distance is short.In this paper,we first calculate the communication distance upper bounds for both uplink and downlink by measuring the tag sensitivity and reflection coefficient.It is found that the activation voltage of the envelope detection diode of the downlink tag is the main factor limiting the back-scatter communication distance.Based on this analysis,we then propose to implement a low-noise amplifier(LNA)module before the envelope detection at the tag to enhance the incident signal strength.Our experimental results on the hardware platform show that our method can increase the downlink communication range by nearly 20 m.

Analysis of Hospital Budget Management Control Based on Smart Hospital

Hospitals are crucial healthcare facilities where patients seek treatment,and effective budget management within hospitals significantly impacts their operational efficiency and financial performance.In the age of information technology and advanced healthcare solutions,the emergence of smart hospitals represents a new trend in the medical industry’s evolution.Leveraging modern information technology can enhance the development of hospital IT systems and drive budget management toward greater intelligence.This paper begins by analyzing the influence of smart hospitals on hospital budget control.It then examines the current state of budget management control within smart hospitals.Finally,it proposes several strategies for budget management control in smart hospitals,aiming to provide guidance for relevant stakeholders.

Incentive-compatible and budget balanced AGV mechanism for peer-to-peer energy trading in smart grids

Peer-to-peer(P2P)energy trading refers to a type of decentralized transaction,where the energy from distributed energy resources is directly traded between peers.A key challenge in peer-to-peer energy trading is designing a safe,efficient,and transparent trading model and operating mechanism.In this study,we consider a P2P trading environment based on blockchain technology,where prosumers can submit bids or offers without knowing the reports of others.We propose an Arrow-d’Aspremont-Gerard-Varet(AGV)-based mechanism to encourage prosumers to submit their real reserve price and determine the P2P transaction price.We demonstrate that the AGV mechanism can achieve Bayesian incentive compatibility and budget balance.Kernel density estimation(KDE)is used to derive the prior distribution from the historical bid/offer information of the agents.Case studies are carried out to analyze and evaluate the proposed mechanism.Simulation results verify the effectiveness of the proposed mechanism in guiding agents to report the true reserve price while maximizing social welfare.Moreover,we discuss the advantages of budget balance for decentralized trading by comparing the Vickrey-Clarke-Groves(VCG)and AGV mechanisms.

Pointing Fingers from A Glass House The fundamental purpose of the increase in China’s defense budget is to safeguard national security and meet the challenges of global changes unseen in a century

On March 5,the Ministry of Finance released the 2023 government budget draft report,according to which China’s defense budget of 2023 will be 1.55 trillion yuan(US$224.79 billion),an increase of 7.2 percent year on year,which is only 0.1 percentage points higher than 2022.The release of the defense budget attracted the attention of many foreign media outlets,some of which delivered distorted interpretations and exaggerated“China’s threat of force.”On March 6,Tan Kefei,spokesperson for the delegation of the People’s Liberation Army and the People’s Armed Police Force to the First Session of the 14th National People’s Congress,said that China has adhered to the principle of coordinated development of national defense and economic development.

全成本预算绩效管理的改革实践与未来展望

全成本预算绩效管理通过打开成本的“黑箱”,进一步增强了成本与产出之间的实质联系,是避免预算绩效管理流于形式的关键所在。本文针对预算管理实践中存在的成本核定不准确、预算投入不合理等问题,从理论机制和实践应用两个方面入手,深入剖析了全成本预算绩效管理区别于传统预算绩效管理的主要特征与关键优势。面对成本界定、成本分摊与成本效益信息运用中的诸多挑战,本文提出在考虑成本生成主体的基础之上,构建基于不同主体的成本核算机制,统一成本分摊标准,审慎考虑成本效益分析的实施项目与运用程度,实行绩效奖励与收入分成机制。本文希望为进一步深化预算绩效管理改革提供有效抓手。

Kinetic Energy Budgets during the Rapid Intensification of Typhoon Rammasun (2014)

In this study,Typhoon Rammasun(2014)was simulated using the Weather Research and Forecasting model to examine the kinetic energy during rapid intensification(RI).Budget analyses revealed that in the inner area of the typhoon,the conversion from symmetric divergent kinetic energy associated with the collocation of strong cyclonic circulation and inward flow led to an increase in the symmetric rotational kinetic energy in the lower troposphere.The increase in the symmetric rotational kinetic energy in the mid and upper troposphere resulted from the upward transport of symmetric rotational kinetic energy from the lower troposphere.In the outer area,both typhoon and Earth’s rotation played equally important roles in the conversion from symmetric divergent kinetic energy to symmetric rotational kinetic energy in the lower troposphere.The decrease in the symmetric rotational kinetic energy in the upper troposphere was caused by the conversion to asymmetric rotational kinetic energy through the collocation of symmetric tangential rotational winds and the radial advection of asymmetric tangential rotational winds by radial environmental winds.

人工智能与财政预算支出管理——基于公共卫生预算的分析

通过将人工智能运用于公共卫生预算分配,本文实证检验了人工智能方法在财政预算支出管理中的有效性。本文以2014—2022年广东21个地级市为研究样本,构建人工智能模型探讨公共卫生预算支出与人口死亡率、甲乙类传染病发病数量和人均地区生产总值等多目标的联系。研究发现:第一,提高卫生监督机构、突发公共卫生应急处理以及疾病预防控制机构预算水平是降低人口死亡率的有效途径;第二,优化基本公共卫生服务、城市社区卫生机构和老龄卫生健康事务的预算分配是控制甲乙类传染病发病数量的关键;第三,疾病预防控制机构、突发公共卫生事件应急处理和采供血机构的预算支出是保障劳动力健康和经济增长的基石;第四,控制传染病发病数量与提高人均地区生产总值存在一定程度的目标冲突,而降低人口死亡率与提高生产总值的目标则较为一致。

两次不同生命史东移高原涡的动力结构与成因分析

利用NCEP再分析资料对2008年6月25-27日和2013年6月4-10日两次东移出高原的高原涡过程进行结构特征和演变机制的诊断分析,探讨两次长、短路径高原涡过程的结构特征和造成不同生命史的影响因子。结果表明:(1)路径短的扎多涡活动过程中,南亚高压呈扁平状,高空急流偏南,高原涡处在下滑槽中移出高原;路径长的曲麻莱涡活动过程中,南亚高压有些北拱,高原涡处在南亚高压脊前西北气流下空,副高偏南,高原涡随低槽东移加强,并伴有西南涡东移。(2)两次高原涡过程结构特征差异明显,主要表现在扎多涡在高原上增强时、曲麻莱涡与西南涡耦合及之后再度加强时的结构特征,前者低涡处在600~350 hPa较深厚的正涡度、上升运动层内,还具有对流层高层强辐散的结构特征;后者具有对流层高、中、低层正涡度贯通、对流层内为上升运动、对流层低层辐合,对流层高层弱辐散的结构特征,其中对流层低层由整个对流层内为最强正涡度,演变为整个对流层内为最强正涡度、最强上升运动、最强辐合。(3)总涡度收支诊断表明,散度项变化对低涡总涡度变率变化起决定性作用。扎多涡的强度变化与散度项变化一致。曲麻莱涡在与西南涡伴行过程中,垂直输送项、水平平流项的影响在加强。(4)涡中心区500 hPa正涡度变率的收支分析看出,高原涡在没有西南涡活动时,对高原涡的500 hPa正涡度变率贡献的主要是涡度辐合造成的;在有西南涡活动时,随着与西南涡垂直方向叠合、伴行,正涡度垂直输送显得更加重要。

从乌海经验看用水预算管理的创新探索

内蒙古自治区乌海市基于自身水资源条件和现实需求,创新探索用水预算管理模式,建立“零基预算”的用水管理规则,明确用水预算管理各项程序,并将用水预算管理与定额管理、计划用水管理有机结合起来,推进全链条节水,构建水资源需求侧管理体系,为提升水资源利用效率提供了制度保障。文章基于对乌海市用水预算管理经验启示的总结,提出对用水预算管理的思考和认识,针对推进全国用水预算管理试点建设提出建议。

政府债务预算硬约束与地方财政可持续性提升

地方政府债务风险的不断积累已成为地方财政可持续性的最大阻碍。以新《预算法》实施后,地方政府债务管理的“开前门”和“关后门”两个阶段改革为准自然实验,分析了政府债务预算硬约束对地方财政可持续性的影响。研究发现:地方政府债务管理的两阶段改革都对地方财政可持续性具有显著的正向提升影响;从作用机制来看,“开前门”和“关后门”阶段改革分别通过财政收支巩固和债务规模控制来发挥对地方财政可持续性的有效作用;异质性分析来看,地方政府举债行为激励较弱和财政监管力度较高的地方,政府债务预算硬约束对地方财政可持续性的正向效应会更加显著。研究结果为推进债务预算硬约束来防范地方政府债务风险和提升地方财政可持续性提供了政策启示。

平衡计分卡在公共部门预算绩效管理中的应用分析——基于学习与成长视角的考察

作为平衡计分卡的基础,学习与成长视角不仅是平衡计分卡价值创造的动力和源泉,而且融入了预算绩效管理的各个环节。但是在具体应用中,平衡计分卡仍然面临着学习反馈与人才培养机制有待完善、预算绩效信息质量急需提高等一系列挑战。在未来的改革中,应不断优化预算绩效管理中的学习反馈机制,将奖惩激励措施有机融入人才培养机制,通过多元化数据来源和建立平衡计分卡专项数据库等手段,持续提升预算绩效信息管理的技术水平。

预算管理一体化下高校政府采购预算管理研究

预算管理一体化深刻改变了政府采购管理的业务流程和控制规范,高校政府采购预算管理如何真正适应预算管理一体化的要求成为高校迫切需要面对的难题。本文研究了预算管理一体化中政府采购管理机制,分析了新形势下高校面临的管理困难,提出了在预算管理一体化的理念下优化高校政府采购预算管理的应对措施,旨在促进高校政府采购预算编制与执行管理工作有效开展,使得高校可以更好地适应预算管理一体化要求。

国家审计如何促进政府预算执行绩效的提升

以2007—2020年我国省级面板数据为样本,研究国家审计与政府预算执行绩效之间的关系及其作用机理。从实证角度验证了国家审计对政府预算执行绩效的提升作用,发现政府预算执行绩效具有空间自相关特性,同时国家审计对政府预算执行绩效的影响存在正向空间溢出效应;国家审计通过直接和间接两条路径促进了政府预算执行绩效的提高,政府效率和市场环境在间接路径中发挥了双重中介作用;2013年全国地方政府债务审计对政府预算执行绩效产生了明显的事件冲击效应;地方发展和审计强度差异均会对国家审计提升政府预算执行绩效产生明显的调节作用。

数字政府背景下中国地方财政预算治理效率评价研究——基于DEA-Malmquist模型

随着数字政府的建设,财政领域充分运用现代信息技术手段,推动财政预算治理数字化转型。基于2017—2021年中国省级地方政府一般公共预算投入产出数据,运用DEA-Malmquist模型对各地方财政预算治理效率进行测度与对比分析。结果表明:中国地方财政预算治理效率总体向好,但有个别地方财政预算治理的DEA无效,起主导作用的是财政预算管理的技术进步与创新。因此,运用现代信息技术加快数字政府建设,提高预算管理数字化与信息化水平,有助于提升预算治理效率。此外,还需要因地制宜优化地方财政预算资金的规模与结构,加强地方财政预算法治建设。

高职院校预算精细化管理提升路径探究

“双高计划”建设背景下,相关各方都要求提高高职院校建设经费的使用效益。如何通过加强财务预算精细化管理,优化资源配置,提高财务治理能力和治理体系现代化水平,助力实现高水平高职院校和专业建设的战略目标,已经成为各建设单位关注的重点。通过探讨高职院校加强预算精细化管理的必要性,总结当前存在的实际问题,并从创新组织架构、科学预算管理、提高信息化水平等方面,提出高职院校预算精细化管理的提升路径。

基于深度学习的隐私保护方法研究

准确和实时的轨迹数据发布能够为用户提供最新的交通和路况信息,有助于用户合理规划出行时间和路线,但是,位置信息的不当发布和反向推理容易泄露用户个人信息,甚至危及用户的生命安全。采用差分隐私方法添加的噪声,会导致隐私保护在数据发布和有效性方面引入不准确性。为了提高发布数据的准确性和可用性,提出了一种基于深度学习和差分隐私模型的数据发布方法,确保时空轨迹数据的安全发布。首先,设计了一种自顶向下递归划分区域的方法,并根据递归深度的增加,多维度定义隐私预算分配规则;其次,通过时空图卷积网络(T-GCN)提取数据的时间和空间特征预测隐私预算矩阵,并对区域添加Laplace噪声,实现轨迹数据的隐私保护。实验结果表明,在满足ε-差分隐私的前提下,该方法能更合理地实现轨迹的隐私保护。