资源与目标一体化评价技术及其勘探意义

资源与目标一体化评价技术,主要对盆地、含油气系统、区带、圈闭以及勘探开发区块进行资源潜力评价和空间分布预测,并通过地质风险、工程、经济等方面的综合评价和决策分析,对有利目标进行评价和优选,对于提高勘探效率,降低勘探风险,实现油气资源动态管理具有重要意义。通过对该技术在国外研究和应用现状及发展趋势的分析,结合当前我国油气资源评价和勘探目标评价现状,指出了我国油气勘探评价存在着数据库建设滞后、各种评价参数积累不够、参数选择随意性大等问题,认为我国石油公司应坚持“以自主开发为主,适度引进”的思路,发展具有自主知识产权的核心勘探评价技术,以提高油气勘探水平,增强国际竞争力。     

Ontological reasoning in the design space exploration of advanced cyber–physical systems

Cyber–physical systems are becoming increasingly complex. In these advanced systems, the different engineering domains involved in the design process become more and more intertwined. Therefore, a traditional (sequential) design process becomes inefficient in finding good design options. Instead, an integrated approach is needed where parameters in multiple different engineering domains can be chosen, evaluated, and optimized to achieve a good overall solution. However, in such an approach, the combined design space becomes vast. As such, methods are needed to mitigate this problem.In this paper, we show a method for systematically capturing and updating domain knowledge in the context of a co-design process involving different engineering domains, i.e. control and embedded. We rely on ontologies to reason about the relationships between parameters in the different domains. This allows us to derive a stepwise design space exploration workflow where this domain knowledge is used to quickly reduce the design space to a subset of likely good candidates. We illustrate our approach by applying it to the design space exploration process for an advanced electric motor control system and its deployment on embedded hardware.     

数字版权保护技术的难题与对策研究

文章对数字版权保护提出了新的分类方法,并且进行了相应的分析,同时指出了数字产品版权保护所面临的威胁,并提出了相应的对策,建议提高版权保护软件的复杂性和稳健性以防止对版权保护软件本身的篡改和反汇编。     

橡胶密炼机混炼工艺瞬时功率控制法

橡胶密炼机混炼工艺瞬时功率控制法的理论由３部分组成：橡胶混炼过程的机理、密炼机流理论和混炼过程功率曲线与能量控制法不同，瞬时功率控制法实质上是控制混炼过程中胶料的粘度，确保混炼工艺过程保持最佳状态。因而瞬时功能控制法可监控生产过程，为密炼机混炼工艺的智能控制奠定了基础。     

石油勘探开发行业可持续发展战略研究

从可持续发展的基本内涵出发，初步研究了石油勘探开发行业可持续发展的主要特征和指导原则，并提出了石油勘探开发行业可持续发展的若干主要对策。将可持续发展思想和战略逐渐融进石油工业业务活动中去，对我国石油工业的持续稳定发展具有十分重要的意义。     

Dynamics in input and output coefficients for land use studies: a case study for nitrogen in crop rotations

Increasingly, model-based approaches play a role in the design and development of new land use systems. Simulation modeling may play a role in the generation of land use systems for land units, and optimization modeling (e.g. linear programming – LP) may be used in the upscaling to farm and region. In the quantification of new land use systems for land units, often equilibrium conditions with respect to soil resources are assumed, following a so-called target-oriented approach. This facilitates ex ante computation of inputs and emissions of nutrients and allows their use in static optimization models based on LP. The condition of equilibrium in soil resources is often not met, nor is it the ultimate aim. Hence, the dynamics in new systems are insufficiently dealt with. This paper presents an approach for the design of land use systems (crop rotations) and their quantification in terms of input and output coefficients, using particular yields and dynamics in soil resources as targets. Interactions between N input and output of succeeding crops are explicitly taken into account. A simple N-balance model is used describing major processes affecting soil N-dynamics. For the Koutiala region in Mali five crop rotations are evaluated that differ in target crop yield, crop choice, crop residue management and external N source. Modeled crop rotations aiming at high yields, in combination with incorporation of crop residues and legumes, result in depletion of soil N stock. Only in crop rotations aiming at high yields and with incorporation of crop residues combined with a supply of large quantities of animal manure, soil N depletion can be prevented. Four approaches are presented of how to use the dynamic input–output coefficients of these systems in land use studies using LP: (i) use of average coefficients, (ii) use of discounted coefficients, (iii) use of pessimistic estimates of coefficients in an optimization of the land use allocation followed by a recalculation of the objective values for the optimized land use with optimistic coefficients, and (iv) a combined use of systems characteristics, i.e. cumulative N-inputs of land use systems over the time horizon and the magnitude of the soil N pool at the end of the time horizon, which can be used as filters for land use systems. Though none of the approaches completely captures the dynamics in input–output coefficients, they enable a well-founded consideration of the consequences of dynamics in, for instance, soil N stocks in static optimization approaches for farm and regional studies.     

新形势下加强学校思想政治工作的探索

主要从教育观念、基本规律和学校、家庭、社会三位一体的育人网络等方面，探索新形势下如何加强学校思想政治工作。     

大凌河流域初始水权分配实践评价

结合大凌河流域初始水权分配实践,从分配范围、分配机制、分配原则、分配模型等方面,对现有研究成果进行全面梳理。在此基础上,结合大凌河流域特点,借鉴我国流域水资源配置评价指标体系,从公平性、效率性、可持续发展、政府宏观调控4个维度,设计了一套水权分配评价指标体系,进而构建了初始水权分配实践效果的耦合评价模型,并应用于大凌河流域。结果表明,在政府和大凌河流域水行政管理部门的宏观调控作用下,通过加强大凌河流域所在区域的政治民主协商,流域内各区域水权分配结果充分体现了与其社会经济发展之间的匹配性,且各区域之间的耦合协同发展效度均达到较高水平。     

平顶山矿区地质勘探与建井工程地质条件分析

针对矿区地质勘探侧重于开采阶段的工程地质工作,忽视了建井期间的工程地质工作,因而造成部分工作的重复投入,引起人力、物力、财力的浪费和施工周期的延长这一带有普遍性的问题,详细讨论了矿区岩体工程地质稳定性问题,并指出今后在地质勘探中增加工程地质勘探的必要性。     

Implementation-aware selection of the custom instruction set for extensible processors

This paper presents an approach for incorporating the effect of various logic synthesis options and logic level implementations into the custom instruction (CI) selection for extensible processors. This effect translates into the availability of a piecewise continuous spectrum of delay versus area choices for each CI, which in turn influences the selection of the CI set that maximizes the speedup per area cost (SPA) metric. The effectiveness of the proposed approach is evaluated by applying it to several benchmarks and comparing the results with those of a conventional technique. We also apply the methodology to the existing serialization algorithms aimed at relaxing register file constraints in multi-cycle custom instruction design. The comparison shows considerable improvements in the speedup per area compared to the custom instruction selection algorithms under the same area-budget constraint.