摘要：为解决加速度载荷信息部分缺失时船舶机械噪声预报误差较大的问题,提出了基于设备等效载荷模型的快速预报方法。该方法基于设备载荷对机械噪声的影响规律,将设备的力学模型等效为F_(z)M_(xy)模型(设备力学模型由F_(z),M_(x)和M_(y)构成),通过能量叠加原理实现船舶机械噪声的快速预报。设备载荷以平均加速度表征时,若能确定出激振力的各个分量的载荷系数,则根据该方法可以准确地预报船舶辐射声功率;若无法确定各个激振力分量,通过等效载荷模型确定水下辐射噪声的变化范围。模型试验结果表明:设备激振载荷以完整的加速度载荷信息给出时,基于该方法的辐射声功率的计算误差在1 dB以内;若设备加速度载荷以平均加速度形式给出时,该方法可以给出水下辐射声功率的变化范围。

摘要：文创产品包装设计在当下的设计领域占有重要地位,而高校文创产品设计是高等教育机构从事文化创意产业领域的创意活动和项目,将知识、人才和资源结合在文化创意产业中和包装设计中,可促进文化创意产业与包装设计业的发展,同时也可为学生提供丰富的文化及创意体验。高校文创包装设计旨在培养学生的创意能力,推动地方文化产业发展,促进传统文化继承与创新。高校文创产品包装设计的创新与改变,可为社会创造出更大的文化价值。

摘要：当设备振动载荷以运动激励形式给出时,常采用大质量法或直接加速度法进行结构动力响应分析。但基于这两种方法的动力学模型无法用于船舶振动模态分析以及振动声学优化设计迭代过程中的动力学重分析。本文基于动力设备内源激振力的不变性,提出等效反演力法,将设备运动激励转换为设备等效内源力载荷,用于船舶水下辐射噪声的预报以及结构声学优化设计。以某舱段为例,对比分析了不同加载方法对应的动力学模型的固有频率与水下辐射噪声声功率,实测水声声功率为92.33 dB,基于等效反演力法输入的水声声功率数值计算结果为93.84 dB,两者相差1.51 dB。研究表明,等效反演力法是在振源设备载荷以运动激励给定时计算水下辐射噪声并用于声学优化设计的优选方法。

摘要：目的以数字技术推动文化遗产价值阐释,以北京中轴线为例,提出了基于人工智能知识图谱的遗产价值挖掘与阐释方法。方法构建了人工智能阐释遗产艺术价值的知识图谱七步法:1)多源异构的艺术资料整理与数字转化;2)基于Protégé系统的本体系统;3)借助本体与图数据库的映射厘清逻辑关系;4)结合NLP大数据技术进行文本挖掘与抽取;5)基于Neo4j构建数字化资源;6)基于Cypher语言查询与图算法提炼艺术价值研究;7)知识图谱的可视化呈现。结论跳出了传统的中轴线宫廷艺术的范畴,提出了4个审美维度,并从4维度揭示了中轴线所承载的中华传统思想精髓。

摘要：Moll Flanders is one of Daniel Defoe＇s masterpieces. The protagonist--Moll Flanders is a female character from lower class that Daniel Defoe first depicted in his novel. The image of Moll Flanders has attracted the attention of many critics since it was created. Critics viewed her as a ＂whore＂, because she had been married for five times in the comparatively conservative society. This paper attempts to analyze the feminist thoughts of the protagonist--Moll Flanders and makes an exploration upon Moll Flanders＇ fate from the perspective of feminism so as to encourage females to pursue whatever they want in order to acquire equal rights with men.

摘要：随着人们生活水平的日益提高,人类与自然环境之间的关系密切相关。人类的一系列行为也在影响着自然环境的优劣,因此新材料新工艺是人们对于现在环境所产生的问题而进行的一系列反思和规划的产物。同时,现代公共艺术设计对于材料的使用更为严谨和细致,公共艺术近几年所使用的材料也引起了广泛的关注和讨论,社会智能化的进步也导致着公共艺术领域新技术的出现,本文将对于新材料新技术在公共艺术设计的应用进行更为详尽的探讨。

摘要：Since African-Americans were transported to America, more than three hundred years have passed. During the tragic and bitter period of time, African-Americans never stopped their efforts to achieve their freedom. Through the description of two kinds of heroines, Uncle Tom and Eliza, Harriet Beecher Stowe tells us： Tom, who was resigned to bad conditions, obedient to the slave-owner, was doomed to death while Eliza who dared to revolt slavery gained a new life and freedom. To some extent, Uncle Tom＇s Cabin played an active function to advance social development, especially in the movement of abolitionist and the American Civil War. The present paper focuses on the analysis of the causes of the different fates belonging to Tom and Eliza respectively from the perspectives of the external cause and internal cause and their own characters.

摘要：由于原子间存在共价键、金属键与离子键的混合键合状态,MAX相陶瓷兼具金属和陶瓷材料的性能特点,并且常与金属之间表现出良好的润湿性,有助于形成强界面结合,独特的层状原子结构使MAX相陶瓷表现出良好的断裂韧性、阻尼与自润滑性能。因此,作为金属基复合材料的增强相,MAX相陶瓷具有显著优势,本文着重介绍相关研究进展。目前,MAX相陶瓷增强金属基复合材料主要通过搅拌铸造、粉末冶金和熔体浸渗等途径制备,得到的复合材料表现出优于金属基体的强度、硬度与模量,同时还具备良好的耐磨、导电、抗电弧侵蚀等性能。此外,借助真空抽滤、冰模板等工艺可实现超细片状MAX相陶瓷粉体的择优定向排列,然后利用金属熔体浸渗多孔陶瓷骨架,可获得具有类贝壳结构的MAX相陶瓷增强金属基仿生复合材料,进一步提升材料的强韧性能。MAX相陶瓷增强金属基复合材料在承载、电接触等应用领域具有显著优势和广阔前景。

摘要：There are five changes in higher education across the world in the 21st century. The five changes include changes in the university students, changes in the professoriate, changes in academic administration, intemationalisation, and assessment of academic work. These changes are evident in higher education in China. The pressure of the changes -on lecturers will have effects on the wellbeing of lecturers. The study discusses the wellbeing under the Self-determination Theory. This theory views wellbeing as a state of happiness. This theory also proposes that people＇s intrinsic goals like personal growth, meaningful relationships, and community contributions can enhance the satisfaction of three basic needs--need for autonomy, need for competence, and need for relatedness. In this way, lecturers can experience a sense of wellbeing. The findings of the study are significant for leaders in higher education who need to implement policies that foster effective work environments.

摘要：The publication of Out of Africa in 1937 won Baroness K. Blixen-Finecke worldwide fame because the novel caused wide public concern among both critics and readers. The story unfolds a poetic picture which reveals the natural peace and harmony in Africa through the narrative angle of the heroine--Karen Blixen. In Out of Africa, the author, from multipoint viepoints, knits the legendary plot to display a picture of a community with the features of spiritual utopia, which is an ideal place for men to escape from the outside disturbance. The present paper, first, gives a brief introduction to the plot of the story. Then, it discusses the characteristics of spiritual utopian community on the African land from the following three perspectives： Karen Blixen is a pursuer to go after self-integrity so as to protect the harmony of spiritual utopian land in Africa; Africans are the paragons of self-integrity to pursue freedom on their homeland; and the western settlers are the dominators who have lost self-integrity in the spiritual utopian community because they have almost destroyed the ecological and social banlance on African land.