摘要：We present an example of applying'need-driven'product design principle to the development of a rapid test kit to detect SARS-COV-2(COVID-19).The tests are intended for use in the field and,longer term,for home *** detect whether a subject is currently infected with the virus and is *** urgent need for large numbers of tests in field setting imposes constraints such as short test time and lack of access to specialist equipment,laboratories and skilled technicians to perform the test and interpret *** meet these needs,an antigen test based on RT-LAMP with colorimetric readout was *** use of swab sample with no RNA extraction was *** extensive experimental study(reported elsewhere),a rapid test kit has been fabricated to satisfy all design criteria.

摘要：面向意向容迟网络的资源分配协议(rapid)路由算法通过引入效能函数避免其他容迟网络(DTN)路由算法对某一性能指标的影响。然而算法中的相遇时间分布问题增加了算法的不确定性和应用局限性。针对这一问题,该文设计了新的基于位置信息的效能函数计算方法。新方法通过元数据交换获得各个节点的位置信息,采用灰色系统预测算法获得较长时间没有消息的目的节点的位置信息。通过最小化到达目的节点的时间,设计了更详细的消息复制优先级及复制规则。仿真表明,新算法能有效克服rapid算法的问题,降低了消息复制数和平均时延,提高了消息成功递交率,网络的整体性能得到进一步提升。

摘要：The particular characteristics of rapid Prototyping technologies, both in terms of constrains and opportunities, often require the reconfiguration of the product model to obtain the best compliance with the product functionalities and performances. Within this field of research, a knowledge-based tool named Design GuideLines Collaborative Framework (DGLs-CF) was developed to support both the designers defining the product consistently with the manufacturing technologies and the manufacturers defining the building setup consistently with the product requirements. Present work is focused on enhancing the DGLs-CF knowledge base and on updating the DGLs-CF knowledge management by using the information gathered on some RP technologies. The added-value of this research is represented by an improvement in the Redesign/Reconfig- uration Package, the final result of the DGLs-CF adoption. This is a list of actions to be performed on the product model and on the process parameters to avoid the limitations of the technology and to exploit at best its opportunities.

摘要：Abstract Models are essential in computer-aided design, manufacturing (CAD/CAM) and concurrent engineering. They are important for object representation, manipulation, and data communication. With fast and explicit availability of 3D object coordinates, range imaging is increasingly used in various engineering applications. We use a laser scanner to digitize object geometry. Model understanding of the digitized range object is therefore a fundamental task in this work. Features are of paramount importance in design and manufacturing contexts, as they are a natural choice for capturing and describing the identity of individual objects, as well as establishing relationships between certain objects. We propose a multi-stage approach to understand range objects. A geometry-based method is developed to evaluate the curvature features of objects in range images. The mapping of the curvature signs is then used to initiate a fuzzy partitioning process in order to extract the quadratic shells. This is followed by a process of qualitative feature identification using a geometric invariance based method. The extracted feature information can be applied to rectify the error introduced during the processes of object scanning and numerical calculation and also can be served to enhance various processes in rapid prototyping application including optimized model re-orientation, etc.

摘要：基于串行rapid IO 2.0规范,设计了一种用于串行rapid IO接口的差分接收机.该接收机均衡电路的频率补偿点以及补偿强度可调,以满足rapid IO 2.0规范规定的不同传输数据率的传输要求;采用共模稳定与偏移调整电路,以减小工艺和温度对接收机的影响.基于SMIC 40nm CMOS工艺对电路进行设计.仿真结果显示,该差分接收机满足rapid IO 2.0规范,在6.25Gb/s的最大数据率下,平均功耗为1.3mW.

摘要：目的解决rapidchemTM744电解质分析仪电极难以清洗这一难题,研制廉价、高效的清洗剂。方法利用析因设计、研究界面活性剂间协同及拮抗作用,运用最佳浓度组成复合配方对使用过的管道管壁进行清洗,对电解质电极进行清洗,对清洗后的电极做仪器自检、相关分析及日常应用。结果处理前后电极对比分析各项统计学指标均无显著性差异。结论临床应用表明:新型清洗剂廉价、高效清洗效果佳。适合清洗rapidchemTM744电解质分析仪狭长而口径小的仪器管道,具有广泛推广应用价值。

摘要：在紧凑型两厢车领域,昕动可以称得上是最具有产品特点的一款车型。首先从整体造型来说,修长的车身以及大角度倾斜的D柱营造出了几分旅行车的神韵,而由结构造型原因所设计的后三角窗在增加透光率的同时,对车内空间感的营造也起到了很大的作用。在细节之处,听动更是将个性与时尚发挥到了一个全新高度。除了极简的设计元素之外,黑化处理的车顶与前后风挡形成了一个视觉整体,效果出众。

摘要：在文本挖掘课程教学中,不仅要求学生掌握文本分类相关理论知识,而且要求学生掌握在真实的文本语料上通过动手实验验证相关算法,进而加深对理论知识的理解。介绍基于rapid Miner的文本分类实验设计方法。在基于维吾尔文文本语料的分类实验中得到比较满意的实验结果,可以在文本挖掘实验教学中推广使用。

摘要：针对rapid IO_2.2协议进行开发,设计并实现了该协议的控制符产生单元。本设计将控制符根据不同的功能字段拆分,采用流水线设计的方法将各个字段内部分别流水产生,最终并行实现。仿真结果表明,本设计在rapid IO_2.2规范下,可以实现正确快速产生控制符的功能,并且能够连续产生不同的控制符。

摘要：目前在食品分析中,使用先进的仪器作为测试工具进行食品成分分析已愈来愈普遍。仪器法由于具有灵敏度高,分析速度快,有足够的准确度等突出优点,对于许多待测成分是微痕量存在的食品成分分析具有很大的实用性。但鉴于我国当前的科学技术及经济条件,购置和使用这些精密昂贵的分析仪器尚难以普及。因此设计能在某一指定检测限度内,用一种简单,饮速,费用低廉又易于掌握的分析方法还是相当必要的。