提升小波实现技术的优化改进

回顾了提升小波的发展，以及它在信号处理领域的广泛应用，讨论了在实际应用中考虑节约存储器容量、提高硬件利用率和增加处理速度等便于VLSI实现因素而进行的改进措施。     

火电厂锅炉火用损失大不等于节能潜力大

本文通过对电厂锅炉火用损失的进一步分析计算，认为现有锅炉火用损失之大部分是不可避免的，“锅炉火用效率可以大幅度提高”的观点是不切实际的。文章对火电厂节能工作具有一定的指导作用。     

单峰映射揉搓序列的特性

为了更好地解释Feigenbaum现象,研究了单峰映射的揉搓序列,利用分析的方法证明了单峰映射揉搓序列极大性的一些性质,进而给出了一个序列作为允许揉搓序列的一个等价条件;利用单峰映射厂和Tpf的揉搓序列之间的关系,给出了重正化算子Tp不动点的揉搓序列的特征．     

图像化脉象仪数学建模与脉搏信息提取

为获取脉诊触觉信息,采用绘制有圆形网格点的软性薄膜加压传感探头,由单一CCD摄像头获取脉搏动态图像.在对脉搏图像传感器结构分析的基础上,建立详细的测量原理模型,论证了该图像化脉象仪获取脉搏多维信息的可行性.在此模型基础上,应用图像处理的方法提取得到脉搏波形,并给出定量分析及实验结论.研究表明,本系统能够有效提取多维脉搏特征信息,为中医诊断客观化和科学化提供了一种新的手段和方法.     

Rapid 3D human body modeling based on Kinect technology

The 3D shape of the human body is useful for applications in fitness,games and apparel.Accurate body scanners,however,are expensive,limiting the availability of 3D body models.In this paper,we focus on the human body 3D modeling using one Kinect sensor modeling method.To get the human body model fast,three steps in rapid modeling of the human body are carried out.Firstly,according to anthropometric parameters,the standard model is parameterized;Secondly,the Kinect depth image of the human body model is gotten through,then,by using the PCL library the point cloud data is processed and matched,and the human body model is optimized;Finally,the realistic human body model is obtained with the rapid integration of the standard model and PCL library.     

<Emphasis Type="Italic">In situ</Emphasis> synthesis of graphene oxide/gold nanorods theranostic hybrids for efficient tumor computed tomography imaging and photothermal therapy

Graphene oxide/gold nanorod (GO/GNR) nanohybrids were synthesized with a GO- and gold-seed-mediated in situ growth method at room temperature by mixing polystyrene sulfonate (PSS) functionalized GO, secondary growth solution, and gold seeds. Compared with ex situ preparation methods of GO/GNRs or graphene (G)/GNRs, the in situ synthesis of GO/GNRs addressed the issue of the aggregation of the GNRs before their attachment onto the GO. The method is straightforward and environment-friendly. The GO/GNRs showed a remarkable photothermal effect in vitro. The temperature of the GO/GNR nanohybrids increased from 25 to 49.9 °C at a concentration of 50 μg/mL after irradiation with an 808-nm laser (0.4 W/cm²) for 6 min. Additionally, the GO/GNRs exhibited good optical and morphological stability and photothermal properties after six cycles of laser irradiation. Upon injection of the GO/GNRs into xenograft tumors, excellent computed tomography (CT) imaging properties and photothermal effect were obtained. The preclinical CT agent iohexol was combined with the GO/GNRs and further enhanced CT imaging. Therefore, the GO/GNR nanohybrids have great potential for precise CT-image-guided tumor photothermal treatment.

Open image in new window

     

酚醛泡沫保温材料在空调系统中的应用

本文介绍了一种新型酚醛泡沫保温材料,它除具备其他保温材料的优点外,还具有难燃、不含氟利昂、耐化学腐蚀性好、温度适应范围广、抗老化性强、施工方便等优点,是第三代最佳保温材料。另外,酚醛夹芯风管不仅工程安装方便,在经济效益方面也优于其它常用风管,适用于空调系统工程中。     

并发系统建模与运作集成环境中的AGENT机制

计算机网络和计算机群集技术的发展,使分布式计算技术可以充分利用分散的计算资源,改进系统的性能和可靠性。文章采用JAVARMI技术实现分布式对象,把计算性任务构造成可移动的Agent,通过Agent的自主迁移完成分布式计算,在原有的基于面向对象PETRI并发系统建模与运作工具的基础上,实现多AGENT的体系结构,完成分布式的系统建模与运作目标,最终解决企事业过程的复杂系统模拟与运作问题。     

基于小波分解和RBF网络的三极管电路故障诊断

在分析现有三极管放大电路故障诊断算法不足的基础上,提出了一种基于模型的小波-RBF网络故障诊断算法。在PSPICE环境下建立三极管常见的故障模型,利用多层小波分解优异的时频特性提取故障特征参数,利用RBF强大的非线性分类能力和快速的收敛特性进行了典型共基极放大电路中三极管的软、硬故障诊断仿真。计算及仿真结果显示,这种故障诊断算法具有诊断速度快、诊断正确率高的特点。     

中文语音合成模块XF-S4240在导航终端中的应用

介绍XF-S4240的功能特点、硬件接口及通信方式,并给出该模块在车载导航终端中的应用实例。实验结果表明,XF-S4240模块的语音效果清晰自然,并且能灵活更改语音内容,因此可以很好地满足车载语音导航的需要。