三次B样条曲线的局部光顺

本文利用最小能量法给出了三次Ｂ样条曲线的光顺方法，并且对光员后曲线的逼近和误差控制作了讨论最后，给出了一些数值实例，说明算法的有效性。     

高职高专院校选修课人文教育功能与价值定位

本文基于高职高专教育承担人文教育的背景,论证了高职高专人文教育应当主要通过公共选修课来实施的命题,并在此基础上,提出选修课在高职高专人文教育中的基本价值定位是促进人文与技术的融合,培育学生的技术人文精神。     

A Hierarchical Ensemble Learning Framework for Energy-Efficient Automatic Train Driving

Railway transportation plays an important role in modern society. As China's massive railway transportation network continues to grow in total mileage and operation density, the energy consumption of trains becomes a serious concern. For any given route, the geographic characteristics are known a priori, but the parameters(e.g., loading and marshaling) of trains vary from one trip to another. An extensive analysis of the train operation data suggests that the control gear operation of trains is the most important factor that affects the energy consumption. Such an observation determines that the problem of energy-efficient train driving has to be addressed by considering both the geographic information and the trip parameters. However, the problem is difficult to solve due to its high dimension, nonlinearity, complex constraints, and time-varying characteristics. Faced with these difficulties, we propose an energy-efficient train control framework based on a hierarchical ensemble learning approach. Through hierarchical refinement, we learn prediction models of speed and gear. The learned models can be used to derive optimized driving operations under real-time requirements. This study uses random forest and bagging – REPTree as classification algorithm and regression algorithm, respectively. We conduct an extensive study on the potential of bagging, decision trees, random forest, and feature selection to design an effective hierarchical ensemble learning framework. The proposed framework was testified through simulation. The average energy consumption of the proposed method is over 7% lower than that of human drivers.     

Lattice-Based Double-Authentication-Preventing Ring Signature for Security and Privacy in Vehicular Ad-Hoc Networks

Amidst the rapid development of the Internet of Things(IoT), Vehicular Ad-Hoc NETwork(VANET), a typical IoT application, are bringing an ever-larger number of intelligent and convenient services to the daily lives of individuals. However, there remain challenges for VANETs in preserving privacy and security. In this paper, we propose the first lattice-based Double-Authentication-Preventing Ring Signature(DAPRS) and adopt it to propose a novel privacy-preserving authentication scheme for VANETs, offering the potential for security against quantum computers. The new construction is proven secure against chosen message attacks. Our scheme is more efficient than other ring signature in terms of the time cost of the message signing phase and verification phase, and also in terms of signature length. Analyses of security and efficiency demonstrate that our proposed scheme is provably secure and efficient in the application.     

贝类在冻藏时的质构和蛋白质特性研究

研究了栉孔扇贝和紫贻贝在冻藏时质构和ＥＰＮ值的变化规律，实验结果表明贝类质构和ＥＰＮ值都随冻藏时间呈线性变化。随着冻藏时间的延长，质构变得更老，ＥＰＮ值下降得更低，磷酸盐和氯化钠等添加剂对贝类的质构和ＥＰＮ值能产生显著影响，在一定时间内可提高ＥＰＮ值和嫩化肌肉。     

金属钛的离子注入表面改性

讨论了离子注入表面改性技术在生物材料中的应用，研究了Ｔｉ－６Ａｌ－４Ｖ合金表面注入Ｎ＋离子后的摩擦磨损行为，结果表明，Ｔｉ－６Ａｌ－４Ｖ经离子注入后，摩擦磨损性能都大幅提高．     

一种YAG激光眼科治疗仪的光学系统

介绍了一种分体测立式ＹＡＧ激光眼科治疗仪的光学系统。治疗头与裂隙灯显微镜光学系统相互独立，它具有二级扩束，Ｈｅ－Ｎｅ光对ＹＡＧ光共轴指示，ＹＡＧ激光焦斑直径ｄＹＡＧ＝（３０±５０）μｍ，光强度满足进行眼科手术的要求。     

近交系BALB／c小鼠繁殖与保种方法的建立和应用

在保种繁殖过程中，采用修饰平行线系统保种法对近交系ＢＡＬＢ／ｃ小鼠进行严格兄妹交配繁殖，保持完整的谱系记录，控制饲养环境条件，成功地建立了ＢＡＬＢ／ｃ小鼠基础群及血缘扩大群，广泛提供科学研究试验应用。     

苦楝果实活性物质对植物生长调节作用

应用生物活性鉴定技术,ＴＬＣ及化学成分检验法,论证了苦楝果实中含有对植物生长促进的活性性质,并初步证明这些活性物质为极性较大的萜类化合物,笔者将这些活性物质为“苦楝生长素类”。     

江西省官山自然保护区鸟类调查初报

１９９３－１９９４年，对江西省官山片段保护我鸟类进行了调查。结果表明，已知鸟类７８种，繁殖鸟５６种，非繁殖鸟２２种，发现国家一级重点保护鸟类白颈长尾雉１种，还有国家二级重点保护鸟类１０种。