ZIF‐8@ZIF‐67‐Derived Nitrogen‐Doped Porous Carbon Confined CoP Polyhedron Targeting Superior Potassium‐Ion Storage

Potassium ion batteries (KIB) have become a compelling energy‐storage system owing to their cost effectiveness and the high abundance of potassium in comparison with lithium. However, its practical applications have been thwarted by a series of challenges, including marked volume expansion and sluggish reaction kinetics caused by the large radius of potassium ions. In line with this, the exploration of reliable anode materials affording high electrical conductivity, sufficient active sites, and structural robustness is the key. The synthesis of ZIF‐8@ZIF‐67 derived nitrogen‐doped porous carbon confined CoP polyhedron architectures (NC@CoP/NC) to function as innovative KIB anode materials is reported. Such composites enable an outstanding rate performance to harvest a capacity of ≈200 mAh g^?1 at 2000 mA g^?1. Additionally, a high cycling stability can be gained by maintaining a high capacity retention of 93% after 100 cycles at 100 mA g^?1. Furthermore, the potassium ion storage mechanism of the NC@CoP/NC anode is systematically probed through theoretical simulations and experimental characterization. This contribution may offer an innovative and feasible route of emerging anode design toward high performance KIBs.     

Application of dynamic sensor activation on operating automated headlights

The controller in an automated vehicle relies on sensors to collect the information needed for handling traffic situations, and reducing the frequency of using sensors could prolong their lifespans. We present in this paper the application of dynamic sensor activation algorithms in discrete event systems to activate/deactivate sensors for collecting information when it is only necessary to automatically operate headlights based on traffic rules. The framework developed in this paper forms a basis for automatically activating/deactivating sensors for other components in an automated vehicle in the future.     

FFI4SoC: a Fine-Grained Fault Injection Framework for Assessing Reliability against Soft Error in SoC

Recently, system-on-chips (SoCs) are increasingly employed in reliable applications for their high-performance and high-densities. Moreover, the structure shrinking of SoC leads to its proneness to radiation-induced soft errors. This paper presents a fine-grained fault injection framework for SoC (FFI4SoC) to assess the reliability of SoC against soft errors. FFI4SoC facilitates fault injection for SoC by defining the primary components and rules that are required by fine-grained fault injection. Furthermore, based on FFI4SoC, we develop a fine-grained fault injection tool named SSIFFI for bare-metal MicroZed. The design of SSIFFI is presented in order to illustrate the application of FFI4SoC. Finally, SSIFFI is engaged in simulated fault injection experiments to explore the cause of single event functional interrupts (SEFIs) and to validate functional properties of FFI4SoC. The experimental results disclose detailed reasons for SEFI and prove that FFI4SoC can be employed to assess reliability of SoC well with the merit of fine-grained injection.     

RRR-RRP六杆机构的MATLAB运动学仿真

用复数推导了曲柄、RRR和 RRP 级杆组的位移、速度和加速度的复数表达式 ,并将其转化为适用于MATL AB仿真的矩阵数学模型 ,以该矩阵数学模型编制了相应的 M函数仿真模块 ,对给定的 RRR- RRP六杆 级机构为例说明如何使用这三个仿真模块建立 MATL AB仿真模型 ,并对其仿真结果的正确性加以分析。其主要思想是以组成机构的杆组为仿真模块 ,搭建各种机构 MATL AB仿真模型 ,可以对各种低副机构进行运动学仿真和分析     

深汕高速公路软基段路面处治方案设计

深汕高速公路软基路段经地基加固处理并铺设过渡性路面后投入运营3a,路面出现不同程度破坏。通过调查,软土地基物理力学性能已明显改善,但在重车超荷作用下,过渡性路面承载力不足,加上雨水浸蚀,路面遭受破坏,进行处治势在必行。文章介绍了对过渡性路面改造的补强设计、病害处理和加铺罩面设计方案。实践证明,经处治后路况良好。     

NEW DEMODULATION TECHNOLOGY OF OPTIMIZING ENERGY OPERATOR AND APPLICATION TO GEAR FAULT DIAGNOSIS

Although many methods have been applied to diagnose the gear fault currently,the sensitivity of them is not very good.In order to make the diagnosis methods have more excellent integrated ability in such aspects as precision,sensitivity,reliability and compact algorithm,and so on,and enlightened by the energy operator separation algorithm (EOSA),a new demodulation method which is optimizing energy operator separation algorithm (OEOSA) is presented.In the algorithm,the non-linear differential operator is utilized to its differential equation: Choosing the unit impulse response length of filter and fixing the weighting coefficient for inportant points.The method has been applied in diagnosing tooth broden and fatiguing crack of gear faults successfully.It provides demodulation analysis of machine signal with a new approach.     

高教改革中两个热点问题的思考

本文对高等教育适应市场经济和进行素质教育两个问题进行了讨论,提出适应市场经济和遵重教育规律两者的联结点是培养的人才及其质量、培养高素质创造型人才是市场经济对高等教育的根本要求,要建立多层次的立体交叉的人才质量反馈系统．在素质教育方面提出素质教育的本质是人才的全面发展和可持续发展,解决教学方法是实施素质教育的根本途径,指出一味增加课程门数、增加课时总量是违反教育规律的,强调要把素质教育贯彻到教学工作各个环节．     

论楚国丝绸中的蟠龙飞凤纹与商周兽面纹的传承关系

蟠龙飞凤纹出自战国时期马山1号楚墓,构图精巧,装饰华丽,是先秦时期风格独特的纹样类型。通过分析图像中的各个构成元素,分别从题材、构图等角度比较蟠龙飞凤纹和商代、西周青铜器中流行的系列兽面纹,可知楚国丝绸中的蟠龙飞凤纹由兽面纹演变而来,其中延续了商代、西周的文化基因,表现了以北极星为中心、龙凤为辅的星象系统,在题材种类、造型方式、色彩等方面融入了楚人的审美喜好,主要体现了楚人的天体崇拜理念,最终也证明商、西周、楚国的纹样之间存在清晰的传承关系。     

马来西亚沙捞越州什兰江斑岩金矿的发现及地质意义

通过对什兰江（Ｓｅｌａｎｊａｎ）金矿的区域成矿背景和已知矿床特征的分析,提出了什兰金矿为斑岩型金矿,阐述了其矿化特征,指出了在该区寻找类似矿床的方向