甘肃省高校专利产出分析及发展对策

通过对甘肃省高校历年发明、实用新型、外观设计三种专利申请量、授权量和部分高校专利实施情况的分析,通过纵横向比较,指出甘肃省高校专利产出方面存在的问题,通过建立模型分析了制约甘肃省高校专利产出的主要因素,并提出了提高甘肃省高校专利产出水平的对策建议。     

沥青路面坑槽的维修

文章对于路面上出现的坑槽,根据坑槽的形成原因及特点,提出了合理有效的修补方法、修补材料及修补机械设备.     

Irrational-Behavior-Proof Conditions Based on Limit Characteristic Functions

Irrational-behavior-proof(IBP) conditions are important aspects to keep stable cooperation in dynamic cooperative games. In this paper, we focus on the establishment of IBP conditions.Firstly, the relations of three kinds of IBP conditions are described. An example is given to show that they may not hold, which could lead to the fail of cooperation. Then, based on a kind of limit characteristic function, all these conditions are proved to be true along the cooperative trajectory in a transformed cooperative game. It is surprising that these facts depend only upon the individual rationalities of players for the Shapley value and the group rationalities of players for the core. Finally,an illustrative example is given.     

Isogeometric Analysis-Based Topological Optimization for Heterogeneous Parametric Porous Structures

Porous structures widely exist in nature and artifacts, which can be exploited to reduce structural weight and material usage or improve damage tolerance and energy absorption. In this study,the authors develop an approach to design optimized porous structures with Triply Periodic Minimal Surfaces(TPMSs) in the framework of isogeometric analysis(IGA)-based topological optimization.In the developed method, by controlling the density distribution, the designed porous structures can achieve the opt...     

二维材料在人工智能中的应用

二维材料是构建神经形态器件并实现低功耗、微型化和规模化集成的首选材料体系。文章对二维材料在人工智能领域的应用现状、优势和面临的问题进行了简要评述,并对其发展趋势进行了展望。     

中低纬度下惯导极区性能模拟测试方法

针对惯性导航系统极区性能试验难以实地开展的问题, 研究了一种模拟测试的方法, 并基于横向坐标系编排给出了以组合导航系统作为测量基准的惯导模拟测试方案。首先分析了模拟测试技术研究的必要性, 然后根据轨迹形变最小原则详细推导了基于横向坐标系编排的极区模拟测试转换公式, 之后针对测试中采用不同基准的情况, 提出了相应的惯性测量单元(inertial measurement unit, IMU)转换算法, 并提出以惯性导航系统/全球导航卫星系统(inertial navigation system/global navigation satellite system, INS/GNSS)为参照基准的一种具体测试方案, 最终完成了仿真实验, 验证了模拟测试理论的正确性。结果表明, 在基准误差不计的情形下,试验导航参数误差与惯导实地横向编排解算误差相当。初步验证了所提方法替代极区实地试验进行精度性能评估的可行性, 为后续极区模拟测试评估研究奠了定理论基础。     

Suppression of Sn2+ and Lewis acidity in SnS2/black phosphorus heterostructure for ppb-level room temperature NO2 gas sensor

The selective detection of harmful gases is of great significance to human health and air quality,trigger-ing the need for special customizations of sensing mat...     

Single-cell atlas of domestic pig cerebral cortex and hypothalamus

The brain of the domestic pig(Sus scrofa domesticus)has drawn considerable attention due to its high similarities to that of humans.However,the cellular composi...     

利用概率方法分析计算负荷系数的选取

本文应用概率理论,推导出工厂计算负荷P_(iz)的计算式:P_(iz)=P_(pz)+ασ,并讨论α的取值直接影响到P_(iz)的值及系统出现过载的概率;推导了达到稳定温升4τ时导线过载的概率的近似计算式。经上机计算,推荐适宜几种类型导线采用的α值。     

科学发展观的经济理论与方法论

本文介绍了科学发展观的经济理论与方法论。部析了“不同的发展观会导致不同的结局”这一观点，用图片展览的方式凸显了不同发展观受益或受损的现实。