摘要：To solve the issue of the contradiction between photovoltaic power generation and plant photosynthesis for sunlight demand, we propose a design method of multi-passband polymer multilayer optical structure. Using polycarbonate(PC) and polymethyl methacrylate(PMMA), two polymer materials with different refractive indices, the passband position and passband bandwidth are calculated and adjusted by the transmission matrix method and TFCalc software. A 450 nm,660 nm, and 730 nm three-passband filter was realized by superimposing stacks of different band positions. The feasibility of the photovoltaic agriculture was confirmed by the power generation efficiency and the actual plant growth.

摘要：用硅烷偶联剂Si69和KH550对脱硫灰进行化学改性,用改性脱硫灰取代部分炭黑与丁苯橡胶复合,制备环保型丁苯橡胶,对其进行了表征,采用均匀设计结合BP神经网络建立模型优化工艺参数.结果表明,最优制备工艺参数为Si69和KH550用量分别为4.3wt%和3.8wt%、无水乙醇用量22.1wt%、搅拌速度705 r/min、反应温度82℃,该条件下所制环保型丁苯橡胶的力学性能为拉伸强度19.64 MPa、撕裂强度44.96 k N/m、邵氏A硬度66.实验结果与模型预测值吻合较好,相对误差为3.03%~2.65%.

摘要：【目的】探索犬细胞毒性T细胞相关抗原-4(cytotoxic T lymphocyte-associated antigen-4,CTLA-4)胞外区作为免疫佐剂的可行性。【方法】根据已发表序列设计引物,用RT-PCR扩增CTLA-4胞外区编码序列,用PCR扩增犬细小病毒(canine parvovirus,CPV)VP2蛋白主要抗原表位基因片段VP2S,将VP2S克隆入含和不含CTLA-4胞外区基因片段的原核表达质粒pQE-31;用获得的重组质粒pQE-CTLA-4-VP2S和pQE-VP2S转化大肠杆菌,并进行诱导表达;用相同剂量的重组蛋白VP2S和CTLA-4-VP2S免疫小鼠,用间接ELISA和血凝抑制试验比较两个免疫组的抗体水平。【结果】经过30次循环PCR扩增后,琼脂糖凝胶电泳显示预期大小的扩增产物;序列测定结果显示,克隆的毕格犬CTLA-4胞外区与已发表序列的核苷酸同源性为99.2%,氨基酸序列同源性为98.4%,结合B7分子的六肽基序(MYPPPY)无变化;VP2S与已发表CPV VP2的核苷酸序列同源性为99%,氨基酸序列同源性为98.6%;经IPTG诱导后,两种重组大肠杆菌表达预期的29kDa VP2S和42kDa CTLA-4-VP2S重组蛋白,两者均能被CPV抗血清识别;间接ELISA和血凝抑制试验结果显示,CTLA-4-VP2S免疫组的抗体产生时间为初免后第2周,抗体高峰期为初免后第4周,而VP2S免疫组的抗体产生时间为初免后第4周,抗体高峰期为初免后第5周,两个试验组高峰期ELISA抗体效价和血凝抑制抗体效价分别相差100倍和10倍。【结论】犬CTLA-4胞外区可作为分子佐剂促进CPV VP2蛋白抗体的产生。

摘要：伺服张力水平过高会加速机械设备的老化速度,从而对机械元件的使用寿命造成影响。该文设计的基于CNN的伺服机械张力自动化控制系统,联合机械驱动电机,建立伺服控制电路,调节自动化控制传感器的实时运行状态;在CNN网络结构中,联合实时运行状态,计算并控制机械张力,完成自动化控制软件设计。实验结果表明,该系统可将伺服机械张力控制在负载压力的30%以下,不会因伺服张力水平过高而造成机械设备快速老化的问题,能够维持机械元件使用寿命。

摘要：随着我国经济的迅猛发展,带来的是城市区域的不断扩展,旧道路升级改造工程在各地相继展开。公共艺术要从"硬件"和"软件"两方面提升道路艺术品质,沿袭道路所承载的城市记忆,挖掘道路独有的历史文化特色。如何在有限的公共空间中融入亮点,是公共艺术设计在道路改造升级中的难题。本文从公共空间艺术创作的角度,提出在城市旧道路改造过程中公共艺术设计的新思路。

摘要：智能驾驶汽车已成为人们关注的热点话题之一.然而,现有的智能驾驶技术仍面临一系列挑战,如交通障碍物的遮挡所引起的模型漏检,以及当汽车驶入隧道等光线骤变的场景时所引起的传感器感知精度下降导致的误检问题等.为保证复杂场景下车辆的感知安全,智能驾驶多模态感知技术应运而生.然而,现有的多模态融合方法仍局限于对检测精度的提升,缺乏感知过程的可解释性,并缺少对模型感知过程的评价指标.本文从信息论角度出发,按照通信模型的构建方法对感知模型进行设计,提出了一种基于信源信道联合编码理论的多模态融合感知模型,从理论上对模型的感知过程进行解释.同时,提出了一种新的评价指标——平均信息熵变(average entropy variation,AEV),用AEV来实时反映模型与外界感知交互过程中的稳定性.进而,对多模态模型的感知过程进行量化分析,增加模型的可解释性.最后,与其他的感知模型在KITTI数据集的评估结果进行比较,我们的模型在经过相似的网络结构时平均信息熵变下降到0.5904,更好地保证了检测任务的感知安全.

摘要：Sedimentary pigments are useful proxy indicators of phytoplankton biomass, community structure, primary productivity and human influence in lacustrine and oceanic ecosystems. Pigments are relatively labile due to their complex chemical structures, which makes the extraction and analysis of sedimentary pigments challenging. In addition, it is important to select appropriate methods to study sedimentary pigments in regions which lack previous investigations. In this study, we adopted the L9（34） orthogonal design to develop methods of extraction and HPLC （high performance liquid chromatography） analysis of sedimentary pigments at two lakes on the Tibetan Plateau： meromictic lake-Dagze Co and dimictic lake-Jiang Co. The orthogonal design comprises 9 combinations of various parameters for extraction and HPLC analysis. The results show that the type and volume of solvent are the most important factors for pigment extraction, and the mobile phase and column selection are the most important for HPLC analysis. For the study sites, we found that the best methods to extract sedimentary pigments are as follows： the use of a mixture of acetone：methanol：water （80： 15：5, v：v：v） as the extraction solvent; sol- vent/sample ratio of 10 mL/g; sonication for 30 s and standing extraction for 6 h. The best methods for HPLC analysis are as follows： Zorbax Eclipse plus C8 column with mobile phase A, methanol：acetonitrile：0.25 M aqueous pyridine （50： 25：25, v ： v ： v） and mobile phase B, methanol： acetonitrile： acetone （20： 60： 20, v： v： v）; pH of mobile phase A adjusted to 6 with acetic acid; and HPLC column temperature maintained at 40~C. The study provides an experimental basis for future investigations of past changes in primary productivity and the response of lake ecosystems to climate change and human activities on the Tibetan Plateau.

摘要：研究综合性大学背景下的艺术设计类人才的培养体系,要顺应时代的背景,政策的变化和院校的综合学科特色,培养具备创新实践、设计实战能力以及具备市场竞争力的艺术设计类人才。浙江工业大学艺术学院针对综合性学科背景下的艺术设计复合型人才培养理念、教学模式及实践平台建设等提出了几点探索,并列举了学院在这个思路的引导下对艺术设计人才培养教学改革的举措与成效。

摘要：Song Dynasty was very significant in Chinese feudal history, and ceramic industry boomed during that time： all kinds of kilns were scattered all over the country, and ceramic art achieved great success. Among those achievements, ceramic censers were a very typical one which features unique styles in patterns, decorations, and glaze colors. This paper covers the developing process and artistic characteristics of censers in Song Dynasty.

摘要：在城市公共艺术设计中,存在一些可见与不可见的矛盾。技术的制约与创新,灵感的培养和闪现,实体空间的包围及容纳,虚空间的交流和拓展,形式表现实体与精神传达理念等这些矛盾影响、制约、引导了城市公共艺术设计的创作。公共艺术设计作品正是在这些相互磨合,相互依托的矛盾之中产生的。这些矛盾的综合体是破茧而出的新蝶,给城市和公众带来别样的风景。