摘要：Cosmic radiation has several effects on the On-Board Processing(OBP)platform in satellite communications systems,and Single Event Upsets(SEUs)are one of its most important *** order to protect the Finite Impulse Response(FIR)filters against SEU,this paper proposes a novel Residue Number(RN)-based *** proposed method applies the transpose form of the FIR filter to avoid the fault missing caused by SEU on shift *** also adjusts the input intelligently to avoid the fault missing caused by SEU on the filter *** all the fault missing events are avoided,the modulus can be minimised to achieve the minimum *** analysis and simulation results show that the noise introduced by the input adjustment is *** injection shows that the fault missing rate of the proposed method is ***,FPGA implementation shows that the overhead of the proposed method is approximately 75% of Triple Modular Redundancy,and is only 1%-2% higher than that of the traditional RN-based design.

摘要：可编程的门数组(FPGA ) 基于的硬件 / 软件域驱动程序系统被建议并且高为 KAF-39000 大区域证明分辨率充电联合了设备(电荷耦合器件) 。KAF-39000 司机系统的要求被分析。有特定的集成电路(ASIC ) 削的申请的微处理器的结构被实现设计驱动程序系统。系统测试结果证明成像类似物数据的双隧道与 0.87 frame/s 的框架率被获得。分别地，水平预定并且垂直预定的频率是 22.9 MHz 和 28.7 kHz 它几乎分别地到达了 24 MHz 和 30 kHz 的理论价值。

摘要：An automatic 3D wiring method for switchgear design is proposed in this paper. First, wiring constraints are created, and a corresponding evaluation model is proposed. Then, based on the structure of the cabinet, we propose a contour expansion scheme to construct rough paths. Different wiring features of the switchgear are used to connect rough local paths. All the paths are represented in a uniform data structure and forma path network. Finally, an improved A* algorithm is used to search the wiring path between the components in the routing network; the evaluation model is considered as heuristic rules for path searching. The result can satisfy the practical requirements of switchgear design. Experimental results are also provided.

摘要：Traditional busbar design is inefficient, costly, and error-prone because of frequent changes of requirements. This paper proposes a semantic-driven method for designing 3D busbars to solve this problem. The design process contains two main parts, namely, semantic-driven routing design and automatic routing segmentation. Semantic-driven routing design creates a relation table between electrical semantics and 3D modeling parameters, as well as helps designers create routings efficiently using electrical parameters as input. Automatic routing segmentation can convert routings into busbar segments that also include manufacturing information. Because the design operations are associated with one another, the resulting busbars can automatically be changed in real time when requirements are changed.

摘要：MXenes因其独特的表面化学性质、可调的金属组份、良好的亲水性和较高的载流子浓度,近年来被广泛应用于诸多研究领域.与其他二维材料类似,MXenes可与其他材料进行复合构建异质结,形成MXenes基三维多孔材料,从而显著增强其反应活性,提升其相关性能.尤其是这些三维多孔MXenes材料所具有的三维结构和明确的孔径,可显著提高电化学过程中各种离子和电子的传输速率,因此在电化学能量存储、传感、催化和环境领域应用前景广阔.在这篇综述中,作者以MXenes/碳、MXenes/无机物和MXenes/聚合物这三种主要的MXenes基异质结为研究对象,系统地总结了近年来三维多孔MXenes基异质结的构建方法的研究进展.同时,深入探讨了三维多孔MXenes基异质结在光催化、环境监测和电化学储能中的应用进展.最后,详细归纳了三维多孔MXenes基异质结的孔隙形成机制、性质和应用之间的关系,并提出了作者独到的见解.本综述可为三维多孔MXenes基异质结在高性能材料和器件中的设计、制造和应用等方面提供指导.

摘要：We present the solid model edit distance(SMED),a powerful and flexible paradigm for exploiting shape similarities amongst CAD *** is designed to measure the magnitude of distortions between two CAD models in boundary representation(B-rep).We give the formal definition by analogy with graph edit distance,one of the most popular graph matching *** avoid the expensive computational cost potentially caused by exact computation,an approximate procedure based on the alignment of local structure sets is provided in *** order to verify the flexibility,we make intensive investigations on three typical applications in manufacturing industry,and describe how our method can be adapted to meet the various ***,a multilevel method is proposed to make further improvements of the presented algorithm on both effectiveness and efficiency,in which the models are hierarchically segmented into the configurations of *** results show that SMED serves as a reasonable measurement of shape similarity for CAD models,and the proposed approach provides remarkable performance on a real-world CAD model database.

摘要：许多自然界生物体内的光化学反应在由吸光单元和催化活性中心构成的复杂有序的分子组装体内发生.通过构造超分子组装材料来模仿自然界光化学反应过程是实现人工光合成的潜在途径.迄今为止,已经有许多自组装有机材料被发展起来用于光催化分解水反应研究,然而能够实现光催化全解水的自组装有机材料尚未见诸于报道.本文首先合成了一种能够在可见光照射下催化全解水的自组装晶态有机纳米片.进一步研究表明自组装晶态有机纳米片的光催化性能与其组装结构密切相关.当其晶态结构被破坏或者表面吸附水分子时,会在能带结构内形成电子陷阱从而导致其在热力学上不再满足全解水要求而失去光催化活性.这项研究为将来设计和合成用于太阳能到化学能转换的自组装有机材料提供了新的思路与见解.

摘要：叉指式背接触硅异质结(IBC-SHJ)太阳电池由于其优异的光学性能备受关注,但是较低的填充因子(FF)限制了其转换效率.本文中,我们用Silvaco TCAD软件模拟了IBC-SHJ太阳电池,发现p-n结和高低结收集载流子的能力有很大差异.高低结内建电场较弱,难以收集电子是FF较低的主要原因.因此,我们用氢化纳晶硅(nc-Si:H)薄膜来代替氢化非晶硅(a-Si:H)薄膜,并且在nc-Si:H薄膜表面覆盖一层超薄高掺杂层进一步提高了载流子传输效率,获得了高达85.3%的FF.此外,三层nc-Si:H薄膜还提高了工艺生产中对掺杂层厚度的容错性,这大大扩展了IBCSHJ太阳电池的工艺窗口.这项工作为解决IBC-SHJ太阳电池的电学问题提供了一条有效的途径,对工艺生产中IBC-SHJ太阳电池的设计具有指导意义.

摘要：寻找一种性能良好的磁性绝缘材料是发展新型多功能量子自旋电子器件至关重要的基础,但是大多数已知的磁性绝缘材料具有居里温度低(<300 K),铁磁性和结构对称性差的特点.本工作中,我们成功设计并制备了一种新型的磁性绝缘体:Bi8Fe2.8Co0.2-Ti2O20Cl,它具有包含五层钙钛矿层的层状Sillen-Aurivillius结构.令人惊讶的是,此种化合物的居里温度达到了约804 K,比未掺杂的奈耳温度提高超过300 K.此外,由于Sillen层的存在,Bi8Fe2.8-Co0.2Ti2O20Cl具有比所有已知相同Co摩尔比掺杂的Aurivillius氧化物更大的剩余磁化强度.X射线吸收光谱(XAS)和X-光磁性圆二色性(XMCD)光谱分析表明,Bi8Fe2.8Co0.2Ti2O20Cl的铁磁性主要是由Co掺杂引起的FeO6八面体的形变和Fe-O-Co的DzyaloshinskiiMoriya(D-M)相互作用所致.

摘要：在强相互作用的费米气体的研究中,原子团的膨胀动力学过程的测量是获取强相互作用费米气体性质的重要手段之一.由于制备的原子团原子数少(~10~5)和温度高(~0.1T_F),此前的研究工作中强相互作用费米气体的膨胀过程通常仅能维持几毫秒.因此,本文首先制备出了大原子数(5×10~6)和极低温度(0.06(1)T_F)的费米超流.结合特殊的磁场设计,作者成功地观测到了长达30ms的费米超流体的类振荡膨胀过程.同时,作者测量了费米超流体的指数型状态方程,得到了准震荡频率与相互作用、温度的关系.该实验结果和方法将促进对费米超流诸多有趣现象的研究,如椭圆流、正常-超流相变和super-Efimov效应等.