高校院（系）党政共同负责制研究

院（系）党政共同负责制是一种具有鲜明的中国特色、适合我国高等学校校情的有效运行机制.实行院（系）党政共同负责制对于激发院（系）办学活力,推动高校内涵建设,提高人才培养质量具有重要的现实意义.当前各高校总体实施情况良好,但是也存在思想认识不到位、党政领导班子的整体效能低下等问题.加强和改进院（系）党政共同负责制主要措施有外部的制度、体制、机制建设和内在的提高党政干部的能力和素质等方面.     

Recent water level changes across Earth's largest lake system and implications for future variability

Water levels on Lake Ontario, the most downstream of the Laurentian Great Lakes, reached a record high in the spring of 2017. This event was accompanied by widespread flooding and displacement of families. Water levels across all of the Great Lakes have risen over the past several years following a period of record low levels. When levels were low, public and expert discussion focused on the possibility that low levels would continue into the future due to climate change, diversions of water from the lakes, and dredging. During the current high water period, variability is being attributed to water management, despite evidence of unusually high precipitation and river flows across the region. Understanding and communicating the drivers behind water level variability, particularly in light of recent extremes, is a fundamental step towards improving regional water resources management and policy.     

A predictive Bayesian data-derived multi-modal Gaussian model of sunken oil mass

Hydrodynamic modeling of sunken oil is hindered by insufficient knowledge of bottom currents. In this paper, the development of a predictive Bayesian model, SOSim, for inferring the location of sunken oil in time, based on sparse, qualitative or quantitative near-real time field data collected immediately following a spill, is described. Mapped output represents unconditional multi-modal Gaussian relative probabilities of finding oil at points across a relatively flat bay bottom, in time. The method of images is extended to address curvilinear reflecting shorelines. The model is demonstrated to locate the entire DBL-152 spill, given field data covering part of the area affected, and to project oil movement near curvilinear shoreline boundaries given simulated field data at two points in time. Limitations include accountability for discontinuous boundary conditions. Further development is recommended, including development of capability for accepting bathymetric data, for modeling continuous oil releases, and for 3-D modeling of suspended oil.     

浅论管理局资金紧张的原因及解决对策

影响管理局资金紧张的原因有三点:一是受企业自身管理和经营的影响;二是受市场环境的影响;三是受政策方面的影响。针对上述原因提出解决对策:1、严格奖惩,层层传递压力,确保资金回笼;2、盘活存量资金,加强集中管理,不断提高资金使用效率;3、优化筹资理财,精心运作,切实降低资金成本;4、加强沟通,积极反映情况,努力争取集团公司的政策支持。     

风险管理审计存在的问题及对策

随着《萨班尼斯-奥克斯莱法案》为代表的一系列加强公司治理规定的出台,作为公司治理核心要素的风险管理以及相应的风险管理审计受到了前所未有的广泛关注。加强风险管理审计是企业的发展的需要,也是投资人及利益相关者的需要。加强风险管理审计应制定符合企业特点的风险管理审计评价标准体系,掌握应有的理论知识和事业技能,保持内审协会要求的“独立性”和“客观性”,注意与董事会管理层沟通。     

Secure administration of cryptographic role-based access control for large-scale cloud storage systems

Cloud systems provide significant benefits by allowing users to store massive amount of data on demand in a cost-effective manner. Role-based access control (RBAC) is a well-known access control model which can be used to protect the security of cloud data storage. Although cryptographic RBAC schemes have been developed recently to secure data outsourcing, these schemes assume the existence of a trusted administrator managing all the users and roles, which is not realistic in large-scale systems. In this paper, we introduce a cryptographic administrative model AdC-RBAC for managing and enforcing access policies for cryptographic RBAC schemes. The AdC-RBAC model uses cryptographic techniques to ensure that the administrative tasks are performed only by authorised administrative roles. Then we propose a role-based encryption (RBE) scheme and show how the AdC-RBAC model decentralises the administrative tasks in the RBE scheme thereby making it practical for security policy management in large-scale cloud systems.     

基于ISA Server和TekRADIUS的网络管理研究

今天,人们每时每刻都离不开网络。为了保证网络环境的安全有序,网络管理就显得非常重要。在本研究中,通过合理配置ISA Server和TekRADIUS,可以对用户进行身份鉴定,从而基于用户身份提供对应的网络服务,产生的日志记录也对日后的审查工作提供了方便。     

高校教务管理系统的安全设计研究

研究了目前环境下高校教务管理系统的安全需求.针对该类系统的安全需求,从系统的外部环境和数据库两个角度出发,提出了一系列安全防御措施及相应的安全方案.在系统架构,网络安全,数据库等几个方面应用不同的安全策略进行系统的没计,从而有效解决了该类系统的安全隐患,保证系统的安全性和稳定性.     

高职院校教务管理系统分析

从分析高职院校教务管理业务工作流程入手,对教务管理业务的主要内容,学生档案管、教学任务管理、成绩管理、学籍管理、教学文件管理和毕业管理进行了需求建模分析,给出了教务管理系统的主要功能结构,为教务管理系统的程序开发莫定了基础.     

三维可视化技术在数字林业中的应用研究

数字林业的三维可视化是在林学和计算机图形学领域研究的一个热点,从简单的林木三维建模到辅助进行森林空间结构合理化,三维可视化技术都提供了全新的森林经营理念和生产管理方式。从树木模型、虚拟林相图、生长模型、林火模拟、病虫害监测、森林空间结构六个方面介绍了三维可视化技术在数字林业中的应用概况,并且分析了三维可视化技术对林业生产、经营、管理、决策等起到的重要作用。森林资源信息量大、涉及面广、关系复杂,因此森林资源三维可视化的研究还需要不断深入。