摘要：With the introduction of“new engineering,new medical science,new agricultural science,and new liberal arts”construction,the reform of college English teaching is also *** nationwide have conducted attempts in different aspects of college English teaching and produced fruitful ***,more efforts should be *** paper discusses the reforms made by Wuhan University of Technology,focusing on the reformation of curriculum.

摘要：通过实际工程案例,探讨中震计算对框筒结构的抗震设计作用,找出框筒结构中需要按中震验算设计截面的构件;同时按照中震验算结果调整这些构件在截面设计后进行大震作用下的弹塑性时程分析,考察这些构件在通过中震验算调整后是否能满足“大震不倒”的性能目标,以说明中震设计对于部分框架剪力墙结构设计的重要性。

摘要：为了解决集中采集多台西门子PLC中数据速度慢、数据处理复杂、采集效率低等问题,设计了一套灵活通用的数据采集方法。在一台上位机PC中采用TCP/IP通讯协议连接多台西门子PLC,通过102端口访问PLC的各个存储区。在读写数据过程中,利用PLC的传送程序集中PLC各个存储区中的数据以及规范读写数据格式,上位机PC以字节数组的方式读写每台PLC中的数据,利用字典的方法解析字节数组中开关量和模拟量数据。通过设计数据采集动态链接库实现方法,同时设计配置文件编辑工具辅助用户对PLC进行数据采集。在实际项目应用中,设计的数据采集方法可以快速稳定的集中采集多台西门子PLC中的数据,极大提高了数据采集效率。

摘要：水下鱼类目标识别技术是认识海洋、经略海洋、向海图强的重要技术之一.基于深度学习的水下目标识别技术已成为研究热点,但是针对水下鱼类数据小样本甚至零样本识别性能亟待提高.本文基于迁移学习,提出了联合深度统计特征对齐(Joint Deep Statistical Feature Alignment, JDSFA)方法,解决小样本下的鱼类目标识别问题.以ResNet-50作为骨干网络,将均方和协方差纳入权重选择算法用来构建自适应损失函数,对齐源域和目标域之间的特征分布,联合源域损失与领域间的自适应损失,设计全局损失函数,建立深度学习识别模型,实现鱼类目标识别任务.利用公开的水下鱼类数据集QUT进行实验验证,相比目前代表性的DADAN、PMTrans、DSAN方法,JDSFA方法的鱼类识别性能分别提升了3.59%、4.96%、5.91%,结果表明了本文JDSFA方法的有效性,并对鱼类目标识别具有良好的应用价值.

摘要：基于层次分析法(AHP)计算综合评分,在单因素试验基础上采用正交试验设计,优化回流法制备葛根乙醇提取物的工艺,并测定葛根乙醇提取物的抗氧化能力。结果表明:葛根乙醇提取物的最佳制备工艺条件为乙醇体积分数50%、料液比1:15(g/mL)、提取时间45min、提取次数2次,在此条件下综合评分平均值为19.33。抗氧化试验测得葛根乙醇提取物对DPPH和羟基自由基清除率最大分别为55.56%和78.22%,具有一定的抗氧化活性。

摘要：With the promulgation of the“National Quality Standards for Undergraduate Teaching of Foreign Languages and Literatures in General Institutions of Higher Education”and“Teaching Guidelines”in 2018,the humanistic attributes of English majors and the important position of literature in foreign language learning are ***,the English literature curriculum is facing the problems of marginalization,reduction of class hours,simplification of curriculum and so *** in the context of the new liberal arts,it provides a new way to break through the dilemma of the literature *** study has collected the use of teaching materials of British and American literature courses in some colleges and universities across the *** on the survey results,the compilation of teaching materials in the new era should consider how to adapt to students’deep learning,autonomous learning,cross learning and research-based learning to provide guidance and *** diversity of learning requires us to break the monotony of textbook compilation,show diversity and complement each other.

摘要：以市场反馈的车用发动机故障作为研究对象,对其主要特征进行分析,通过故障机型分布、应用场景分布、台架测试等环节。逆向梳理柴油机后处理因碳氢覆盖机理,为因后处理碳氢覆盖导致发动机最终排放超标找到优化措施。根据分析,碳氢覆盖主要原因集中在燃烧室设计不合理、喷油器积碳后雾化效果差、发动机设计排温较低、驾驶习惯不良等。

摘要：为了增强乳化炸药的稳定性和爆炸性能,在传统基于失水山梨醇单油酸酯(Span80)和聚异丁烯丁二酰亚胺(T154)的复合油相材料中加入阳离子双子表面活性剂18-2-18,设计了一种新型复合油相材料,并以此制备了乳化炸药,测试了复合油相材料主要性能参数,考察了18-2-18含量对乳化炸药的乳胶基质粘度、内相粒径及爆炸性能的影响。结果表明:加入18-2-18的新型复合油相材料的酸值、水分、粘度、滴熔点等指标均达到工业生产标准;与传统复合油相材料相比,新型复合油相材料中的18-2-18含量为0.7%时,其乳化剂含量从38.0%降低至23.7%,降低了复合油相材料的生产成本;乳胶基质内相粒径由4.00μm减小到1.22μm,提高了乳胶炸药的稳定性;乳化炸药爆速达到5042 m·s^(-1),且20次高低温循环后仍然能够稳定爆轰,爆速为4512 m·s^(-1)。

摘要：本文从残留溶剂分析、BOPP薄膜微观结构分析、软包装设计(图文设计和软包装结构设计)、油墨、胶黏剂、印刷及干式复合工艺控制及环境等多方面对BOPP薄膜印刷复合后的溶剂残留进行分析。结果表明BOPP印刷复合膜在生产过程中易溶剂残留超标,尤其是对乙酸乙酯和甲苯等有机溶剂。因此减少有机溶剂的使用,如使用醇性或水性油墨,采用无溶剂复合等,或对BOPP材料进行改性,再配合工艺控制方法使溶剂残留量符合GB/T10004-2008的要求。

摘要：Central composite design(CCD),together with multiple linear regression,was successfully used to optimize the electrophoretic buffer system of micellar electrokinetic capillary chromatography(MEKC) for the determination of albiflorin,paeoniflorin,liquiritin,and glycyrrhizic acid in the traditional Chinese medicine(TCM) prescription,yangwei *** of sodium deoxycholate(SDC) and borate,and proportions of ammonia,acetonitrile,and methanol were *** total resolutions of peaks between the analytes and their adjacent peaks in real samples were integrated into the evaluation index of separation *** optimum electrophoretic buffer contained 80 mmol/L SDC,20 mmol/L borate,5%(v/v) methanol,0.5%(v/v) ammonia,and 5%(v/v) *** correlation coefficients(R 2 ) between the peak areas and the corresponding concentrations of analytes were greater than *** limits of detection(LODs) (S/N=3) of the analytes were 0.97-4.00μg/*** results indicate the superiority of CCD in optimizing the separation conditions of complex samples such as TCM prescriptions.