摘要：为了研究波浪滑翔器多体结构的动力学特性,本文利用D-H方法表示了波浪滑翔器各部分速度和位置的关系,结合波浪滑翔器结构特性推导波浪滑翔器的动力学方程。通过水池试验验证模型正确性,在Matlab-Simulink软件环境下进行运动仿真试验。试验结果表明:该建模方法可有效表示浮体与滑翔器之间较强的耦合关系,相较于传统方法提供更多参数,更好地分析得出波浪滑翔器的运动特性和其影响因素,便于后续研究。

摘要：景德镇制瓷手工技艺作为中华民族精神家园中的非物质文化遗产之一,既是中国历史的见证,又是中华文化传承的基因。为更好地推动景德镇制瓷手工技艺活态传承,在研讨景德镇制瓷手工技艺生产性保护概念与意义,并分析其现实困境,提出景德镇制瓷手工技艺"三级"生产性保护路径,有助于促进景德镇制瓷手工技艺良性发展,进而推进景德镇国家陶瓷文化创新试验区建设。

摘要：瓷器之成,窑火是赖。柴窑关联文化遗产是景德镇陶瓷文化遗产中最为重要的一部分。然而,长期以来,这类文化遗产保护工作中,存在着传承人后继乏人、割裂式保护、科学研究不足,保护性破坏等诸多问题,本文根据《国务院关于加强文化遗产保护的通知》精神,对景德镇传统柴窑关联文化遗产进行了分类,并就保护工作中存在的问题提出了相关对策。

摘要：Based on rational behavior model of three layers, a tracking control system is designed for straight line tracking which is commonly used in underwater survey missions. An intelligent PID control law implemented as planning level during the control system using transverse deviation is came up with. Continuous tracking of path expressed by a point sequence can be realized by the law. Firstly, a path tracking control system based on rational behavior model of three layers is designed, mainly satisfying the needs of underactuated AUV. Since there is no need to perform spatially coupled maneuvers, the 3D path tracking control is decoupled into planar 2D path tracking and depth or height tracking separately. Secondly, planar path tracking controller is introduced. For the reason that more attention is paid to comparing with vertical position control, transverse deviation in analytical form is derived. According to the Lyapunov direct theory, control law is designed using discrete PID algorithm whose parameters obey adaptive fuzzy adjustment. Reference heading angle is given as an output of the guidance controller conducted by lateral deviation together with its derivative. For the purpose of improving control quality and facilitating parameter modifying, data normalize modules based on Sigmoid function are applied to input-output data manipulation. Lastly, a sequence of experiments was carried out successfully, including tests in Longfeng lake and at the Yellow sea. In most challenging sea conditions, tracking errors of straight line are below 2 m in general. The results show that AUV is able to compensate the disturbance brought by sea current. The provided test results demonstrate that the designed guidance controller guarantees stably and accurately straight route tracking. Besides, the proposed control system is accessible for continuous comb-shaped path tracking in region searching.

摘要：景德镇制瓷手工技艺是创作者通过辛勤劳动创造出来的,形成了景德镇制瓷历史、制瓷文化底蕴,还创造了制瓷手工技艺。同时,景德镇制瓷手工技艺在发展过程中由思想的碰撞产生了丰富的劳动哲学。新时代下,大多学者关注景德镇制瓷手工技艺形而下的研究,而缺少景德镇制瓷手工技艺背后的形而上分析;为此,文章将阐述劳动创造了景德镇制瓷手工技艺,进一步探究景德镇制瓷手工技艺中所蕴含的丰富的马克思主义劳动哲学:物质性劳动、非物质性劳动、自由劳动、合作劳动、生态劳动等。

摘要：在当前"互联网+"时代,各类信息技术日益成熟,为高等教育转型发展提供了基础支撑。信息化背景下高等教育需要更加重视学生个性化学习需求以及学生全面发展,定制化教学应运而生。这对提升高等教育质量、深化高等教育改革而言,具有重要的实践价值。为建立健全应用型院校定制化教学体系,应用型院校应当实现定制化教学要素的角色转变,加快教学模块整合与开发,完善定制化教学系统设计。

摘要：目的：调查视网膜色素变性（RP）的相关影响因素,为预防与延缓其发展提供依据。方法：选择临床确诊的RP 105例,采用自行设计的调查表,通过问卷调查方式收集RP患者吸烟及饮酒情况、食用富含维生素A食物频率和精神状况等,使用Epidata3.1软件建立数据库进行数据分析。结果：（1）不吸烟者72例,占68.6%;现在吸烟者25例,占23.8%;既往吸烟者8例,占7.6%。不饮酒者71例,占67.6%;饮酒者34例,占32.4%。（2）从事轻体力劳动者62例,占59.0%;适度劳动者33例,占31.4%;重体力劳动者10例,占9.5%。（3）每天看电视、电脑和手机屏幕时间〈1h者44例,占41.9%;1～3h者30例,占28.6%;〉3h者31例,占29.5%。（4）日常从不或偶尔食用动物肝脏者90例,占85.7%;从不或偶尔食用胡萝卜者84例,占80.0%;从不或偶尔食用鱼类者77例,占73.3%;从不或偶尔食用蛋类者39例,占37.1%。（5）近6个月总是难以入睡或睡眠不实23例,占21.9%;感觉疲倦或比平时更容易发脾气者19例,占18.1%;感到不安、注意力难以集中、紧张或焦虑者10例,占9.5%;感觉肌肉紧张或酸痛者9例,占8.6%。结论：吸烟、饮酒、摄入富含维生素A食物过少等对RP可能有负面影响。

摘要：【目的】探讨SAG、TULP1、RDS、PRPF31基因与视网膜色素变性交互作用的关系,为视网膜色素变性的病因学研究、预防与延缓发展提供理论依据。【方法】通过4种易感基因进行筛查确定的5个等位基因,应用单纯病例组Logistic回归设计,分析4种基因与视网膜色素变性危险因素的交互作用。【结果】SAG基因rs1046974和PRPF31基因rs460824与食用鱼类食物存在交互作用(P=0.020,P=0.017),TULP1基因rs2064318和rs9380516及RDS基因rs434102与近亲结婚史、家族遗传史、吸烟饮酒、其它富含维生素A食物、精神状态均不存在统计学意义的交互作用(P>0.05)。【结论】SAG基因rs1046972、PRPF31基因rs460824与食用鱼类食物存在有统计学意义的交互作用(P<0.05)。