摘要：To solve the topology optimization of complicated multi-objective continuous/discrete design variables in aircmit structure design, a Parallel Pareto Genetic Algorithm （PPGA） is presented based on grid platform in this paper. In the algorithm, the commercial finite element analysis （FEA） software is integrated as the calculating tool for analyzing the objective functions and the filter of Pareto solution set based on weight information is introduced to deal with the relationships among all objectives. Grid technology is utilized in PPGA to realize the distributed computations and the user interface is developed to realize the job submission and job management locally/remotely. Taking the aero-elastic tailoring of a composite wing for optimization as an example, a set of Pareto solutions are obtained for the decision-maker. The numerical results show that the aileron reversal problem can be solved by adding the limited skin weight in this system. The algorithm can be used to solve complicated topology optimization for composite structures in engineering and the computation efficiency can be improved greatly by using the grid platform that aggregates numerous idle resources.

摘要：在分析桥头跳车机理的基础上,利用Excel作为设计和计算工具,实现了一个简单的桥头加铺纵坡系统。以沪杭甬高速公路设计案例为基础,提出一种以桥面为起边坡度和正常路面为终边坡度的基准坡度,在需加铺段插入S形竖曲线的设计方法来恢复沉降受损的线形,使桥头纵坡线形流畅,使桥头纵坡设计变得简单易用,高效便捷。

摘要：一个完整的数据加密系统应该具有安全可靠的密码认证机制和加密算法,为了解决现有大多数认证系统中逻辑认证的局限,利用两片FPGA芯片、PCI控制器、MEMS强链和AES算法设计了一种高效的数据加密系统,实现了物理认证和数据的加密/解密,利用AES-128加密算法对数据进行加解密,提高了安全等级。该系统具有简捷方便、性能稳定、数据吞吐率高等特点。

摘要：钢筋混凝土的质量性能对桥梁结构有很大的影响,简支梁桥是钢筋混凝土结构的常见桥型之一。凭借其独特的优势在道路建设中得到了广泛的采用。在高速公路运营阶段,简支梁桥由于施工和养护等原因出现了各种各样的缺陷和损伤,桥梁结构功能受损,耐久性降低,桥梁使用寿命达不到设计年限。以浙江沪杭甬高速公路简支梁桥为研究对象,通过钢筋砼简支梁桥的典型病害成因分析,提出简支梁桥的加固处治方法。

摘要：在对沪杭甬高速公路交通流量进行调查统计分析的基础上,对交通安全水平进行评估,并提出交通组织原则与方法,针对不同的交通流量情况分别提出三种交通组织方案,为沪杭甬高速公路路面整修工程顺利实施提供了有效的理论依据和技术支持。

摘要：以提升车辆主动安全、减少纵向碰撞事故为目标,提出了一种基于车尾边缘特征信息的前车识别方法与基于单目视觉的纵向车距检测方法。有别于传统算法利用全局边缘特征或灰度纹理特征来识别前车,该算法首先依据路面灰度分布特性来分割车底阴影,再利用车尾水平与竖直边缘的分布特性建立前车ROI,进一步利用竖直边缘的对称强度验证车辆身份。根据摄像机的小孔成像原理建立纵向车距测量模型,避免了复杂的内外部参数标定。道路试验表明,算法对车辆的平均识别率达到88.5%,纵向车距检测的平均相对误差小于3%,能够实现的有效测距范围为(6.9~78.3)m,其精度与运行速度可以满足实际驾驶中的纵向车距检测。

摘要：As an important part of network literature,Internet fantasy novels are more and more popular among overseas readers with the development and progress of Internet *** are a large number of terms in Internet fantasy novels with traditional Chinese cultural characteristics,making it difficult to *** order to better“going global”of Chinese online literature,the“defect”phenomenon in the translation of terms of Internet fantasy novels into English and its reasons behind are clarified,and several“compensation”strategies is provided.

摘要：The outbreak in Shanghai,China in 2022 brought huge challenges to this protracted battle against the *** on the deliberate metaphor theory,this study uses the news reports of Shanghai’s fight against the COVID-19 pandemic as the corpus and uses quantitative and qualitative methods to analyze the types and characteristics of deliberate metaphors and its pragmatic purpose in a specific *** results show that there are various types used in news reports,among which War metaphor,Climate metaphor and Education metaphor are used *** deliberate metaphors makes the news more understandable attractively and pleasantly,thus evoking the emotional resonance of the public.

摘要：Internet buzzwords,as distinct forms of language,consist of short sentences yet carry rich meanings and spread *** better study this intriguing and unique linguistic phenomenon,this paper employed conceptual integration theory for its powerful explanatory capabilities to analyze the origins,composition,and emergence of meanings of internet buzzwords over the past four *** 40 internet buzzwords can be categorized into five types:semantic derivation,generalization,abbreviation,metonymy,and ***,this paper conducted cognitive analysis from different conceptual integration network perspectives,elucidating specific cognitive operations involved in the construction of meanings and revealing the emergence process of layered meanings in recent internet buzzwords over the past four years.

摘要：AIM:To evaluate the application of anterior segmentoptical coherence tomography(AS-OCT)in posterior capsule opacification(PCO)severity assessment and analyse the relationship between PCO severity and intraocular lens(IOL)***:PCO patients were prospectively ***-sectional images of the anterior segment at horizontal and vertical meridians were acquired with *** area of the IOL-PC(posterior capsular)space and PCO severity(area,thickness,and density at 3 mm and 5 mm IOL optic regions)were *** relationship between PCO severity and visual acuity,comparisons of PCO severity and IOL-PC space using varied IOL designs were ***:One hundred PCO eyes were ***-PC space,PCO thickness and area were positively correlated with axial *** addition,PCO area and thickness were positively correlated with visual acuity when it was≤0.52 log *** cut-off level of visual acuity should be 0.52 log *** varied IOL designs,3-piece C haptic IOL showed a smaller PCO area and thickness than the 1-piece 3 haptic IOL and 1-piece 4 haptic *** area and thickness values for an IOL with a diameter≤11.0 mm was greater than for an IOL with a diameter of 12.5 mm,and the differences were statistically *** area and thickness increased when IOL haptic angulation increased(from 0 to 12 degrees).CONCLUSION:In PCO eyes,cut-off level of visual acuity is 0.52 log *** more severe PCO,visual acuity maybenot enough to describe the visual function *** severity and IOL-PC space are significantly correlated with axial length and IOL design and material.