Research on the Application of Flash Animation Technology in Digital Media

This article first respectively introduces the characteristics of product design and digital media technology, combined with knowledge of the new economic background and user participation trends in innovation, analyzed the shortcomings of traditional design expression and digital media technology, through the use of digital media flash design expression and method, to solve the problem of traditional design expression. Finally, through the expression model of digital media and interactive animation based on flash animation technology, showed that flash obtained the rapid development and application in the multimedia platform.

Recent advances in high-pressure science and technology

Recently we are witnessing the boom of high-pressure science and technology from a small niche field to becoming a major dimension in physical sciences.One of the most important technological advances is the integration of synchrotron nanotechnology with the minute samples at ultrahigh pressures.Applications of high pressure have greatly enhanced our understanding of the electronic,phonon,and doping effects on the newly emerged graphene and related 2D layered materials.High pressure has created exotic stoichiometry even in common Group 17,15,and 14 compounds and drastically altered the basic σ and π bonding of organic compounds.Differential pressure measurements enable us to study the rheology and flow of mantle minerals in solid state,thus quantitatively constraining the geodynamics.They also introduce a new approach to understand defect and plastic deformations of nano particles.These examples open new frontiers of high-pressure research.

Flash X-ray cinematography analysis of dwell and penetration of smallcaliber projectiles with three types of SiC ceramics

In order to improve the performance of ceramic composite armor it is essential to know the mechanisms during each phase of the projectile–target interaction and their influence on the penetration resistance.Since the view on the crater zone and the tip of a projectile penetrating a ceramic is rapidly getting obscured by damaged material,a flash X-ray technique has to be applied in order to visualize projectile penetration.For this purpose,usually several flash X-ray tubes are arranged around the target and the radiographs are recorded on film.At EMI a flash X-ray imaging method has been developed,which provides up to eight flash radiographs in one experiment.A multi-anode 450 k V flash X-ray tube is utilized with this method.The radiation transmitted through the target is then detected on a fluorescent screen.The fluorescent screen converts the radiograph into an image in the visible wavelength range,which is photographed by means of a high-speed camera.This technique has been applied to visualize and analyze the penetration of 7.62 mm AP projectiles into three different types of Si C ceramics.Two commercial Si C grades and MICASIC(Metal Infiltrated Carbon derived Si C),a C-Si Si C ceramic developed by DLR,have been studied.The influences,not only of the ceramic but also the backing material,on dwell time and projectile erosion have been studied.Penetration curves have been determined and their relevance to the ballistic resistance is discussed.

Prospect of radiotherapy technology development in the era of immunotherapy

Radiotherapy(RT)is one of the important modalities for cancer treatments.Mounting evidence suggests that the host immune system is involved in the tumor cell killing during RT,and future RT technology development should aim to minimize radiation dose to the immune system while maintaining a sufficient dose to the tumor.A brief history of RT technology development is first summarized.Three RT technologies,namely FLASH RT,proton therapy,and spatially fractionated RT(SFRT),are singled out for the era of immunotherapy.Besides the technical aspects,the mechanism of FLASH effect is discussed,which is likely the combined results of the recombination effect,oxygen depletion effect and immune sparing effect.The proton therapy should have the advantage of causing much less immune damage in comparison to X-ray based RT due to the Bragg peak.However,the relative biological effectiveness(RBE)uncertainty and range uncertainty may hinder the translation of this advantage into clinical benefit.Research approaches to overcome these two technical hurdles are discussed.Various SFRT approaches and their application are reviewed.These approaches are categorized as single-field 1D/2D SFRT,multi-field 3D SFRT and quasi-3D SFRT techniques.A 3D SFRT approach,which is achieved by placing the Bragg peak of a proton 2D SFRT field in discrete depths,may have special potential because all 3 technologies(FLASH RT,proton therapy and SFRT)may be used in this approach.

Flash X-ray radiography technique to study the high velocity impact of soft projectile on E-glass/epoxy composite material

In the present paper, the high velocity impact of 9 mm soft lead projectile on 10 mm and 30 mm thick Eglass/epoxy composites was studied using a 450 kV Flash X-ray radiography(FXR) system. The basic parameters of FXR imaging, such as effect of ratio of target to film(TF) and source to target(ST) distances and X-ray penetration thickness of the composite material were optimized based on clarity and the actual dimensions of the objects. The optimized parameters were used in the FXR imaging of the ballistic event of 9 mm soft projectile on E-glass/epoxy composite. The real time deformation patterns of both the projectile and composite target during the ballistic impact were captured and studied at different time intervals. The notable failure modes of the 10 mm thick target with time include fibre breakage, bulging on the back side, delamination, recovery of the bulging, reverse bulging and its recovery. However, with increase in thickness of the target to 30 mm the only failure mechanism observed is the breaking of fibres. The ballistic impact event was also numerically simulated using commercially available LS-DYNA software. The numerically simulated deformation patterns of the projectile and target at different time intervals are closely matching with the corresponding radiographic images.

A Simulation Study on the Flash X-Ray Spectra Spatial Distribution

Accurate measurement of flash X-ray energy spectra plays an important role in highenergy flash radiography. In this paper, by virtue of Geant4 toolkit, we simulated the generation and transport of X-ray photons resulting from the interaction of a high-energy electron beam with a solid thin target. We obtained the flash X-ray energy spectral distribution in the plane perpendicular to the electron beam incident direction. Our results indicate that the flash X- ray spectrum is almost uniform in the azimuthal direction but is quite different in the radius direction. Specifically, as the radius increases, the incident X-ray dose decreases significantly. Our work paves a theoretical basis for selecting appropriate structures and layout of the spectrometer and facilitates the measurements of flash X-ray energy spectra.

基于Flash混合存储的数据迁移技术研究

混合存储系统内的数据结构较为混乱,为提高数据迁移效率,减少其响应时间,设计基于Flash混合存储的数据迁移技术。综合比较Flash存储器、固态硬盘存储器以及磁盘存储器的存储效果,对存储介质进行缓存分层,整理其在同层结构与分层结构中的读写顺序;计算文件的时间长度值,获取文件读写频率以及单位时间内的文件访问量,计算文件预期价值,并得到相应的约束条件,由此建立数据价值评定模型,设计数据迁移算法。实验结果表明,在邮件负载条件下效果更好,在不同时段内,响应时间均不超过3 s,因此该数据迁移技术的响应时间较短,性能较好。

Flash技术在医学电子学多媒体教学中的应用研究

根据医学电子学教学内容特点，通过实例介绍了Flash技术在教学过程中的应用，可以灵活地应用于电子元器件微观结构和内部变化过程的展示、电子元器件工作原理的解释、电路工作过程的动态分析以及模拟演示实验等相关内容的教学。指出通过应用Flash技术，可以加深学生对相应教学内容的理解和掌握，使教学过程更具有科学性，激发学习兴趣，提高课堂教学效率。

基于Flash技术的网络地图发布研究与应用

分析了网络地图的特点与功能,回顾了网络地图的发展历程,并对现今较为成熟的国内、外网络地图发布技术及其实现方式做了比较研究。在此基础上,结合“深圳市资源节约与综合利用网”企业信息发布的实际需要,采用“Flash”技术,实现了真正意义上的“瘦客户端”的网络地图发布系统。

基于NAND Flash的高速大容量存储系统的设计

针对空间相机地面检测设备数据信息量大、存储速度快的特点,采用性能优良的NAND型Flash为存储介质,FPGA为控制核心,实现了高速大容量存储系统的设计。针对数据存储速度的提升,引入双plane操作、并行及流水线的方式控制Flash阵列。通过对Flash芯片中坏块特点的研究,引入了坏块管理部分。实验结果表明,该系统能够完成空间相机大量原始数据的高速记录工作,保证了数据记录的实时性及可靠性。

基于Flash的网络电子地图

研究了用Flash制作网络电子地图的方法,详细阐述了这种方法制作的电子地图的优势及分析了用Flash制作网络电子地图与WebGIS技术制作电子地图在开发平台,对网络的依赖,客户端浏览器及制作效果等方面的不同。以具体实例从模板地图输入,矢量地图绘制,矢量地图修改和润色,动画效果技术应用,放大缩小、平移及鹰眼等地图浏览功能的引入等方面的实现过程。本研究提供了一种开发容易,成本低廉且可行的网络电子地图制作的有效方法。

Flash在地理教学模拟实验中的运用

介绍了Flash动画的基本形式——运动动画、形变动画、遮照动画及引导动画在地理模拟实验中的运用,并举例说明了各种动画在地理模拟实验中的制作步骤、使用效果和使用技巧。

适用于Flash Memory的负高压泵的实现

提出一种适用于单电源,低电压供电的FlashMemory的负高压电荷泵的实现方法。在分析传统电荷泵工作原理的基础上,结合Flash工作电压和参数要求,提出三阱工艺,无阈值损失的负高压电荷泵电路结构。最后在0.22!mFlash工艺下给出测试结果。

基于NANDFLASH的双备份数据存储器的设计与实现

针对航天飞行器恶劣的工作环境,结合相关课题的任务要求和技术指标,设计了一种可以工作在高温、高压、高冲击、高过载环境下的数据存储装置。选用XC3S400型号FPGA作为中央控制处理器,控制AD芯片实现对4路采样频率为27kHz噪声信号的同步采集,同时控制RS-422异步串行通信接口接收一路码率为9 830 400 bit/s的PCM数据流。最后将采集编码后的4路噪声信号和PCM解码数据按一定的帧格式进行混合编帧后双备份并行存入NAND型FLASH中。大量实验测试结果表明,固态存储器能够实现对四路噪声信号及一路PCM数据的准确采集及实时可靠存储。

TMS320LF240XA系列DSP片内FLASH编程技术

嵌入在TMS320LF240XA内的FLASH是DSP可供开发的片内资源。文章介绍了FLASH基本编程命令,论述了JTAG接口和串行通信接口两种编程方法及其注意事项。FLASH为用户程序的存储带来了方便,使得系统容易实现程序的更新,便于系统维护与升级。

基于Flash和3D动画渲染技术的育苗机器人设计

在农机设计过程中,为了对真实环境进行虚拟化渲染,以达到逼真的效果,提出了一种基于Flash和3D动画渲染技术的育苗机器人设计方法,该方法可以将农机在虚拟的作业环境中进行仿真,从而实现农机的动态交互式设计。设计了Flash3D动画渲染的基本框架,并在框架内使用了3D引擎的一些常用功能,其中主要包括文件的压缩和解析、3D场景的渲染、精灵模拟和文件的管理等。为了实现3D场景大文件的压缩而不影响3D效果、加快3D动画场景渲染的解析速度,使用Flash和小波重构方法,从而实现了对三维场景按需进行加载和展示。最后,对设计系统进行了测试,测试结果表明:该系统可以成功地实现玉米育苗机器人的三维动画渲染,使用Flash和小波重构方法可以明显地使系统得到优化,极大地提高了系统的3D设计性能。

Flash型FPGA单粒子效应测试系统设计

通过分析Flash型FPGA芯片的基本结构和应用需求,设计了针对各个FPGA功能模块的试验方法,并实现了一套单粒子效应测试系统。对Actel ProASIC3系列Flash型FPGA进行单粒子翻转(SEU)、单粒子功能中断(SEFI)以及单粒子闩锁(SEL)等各类单粒子效应进行测试,并验证抗单粒子效应加固技术的有效性。测试系统包含硬件板卡设计、FPGA逻辑设计以及上位机软件设计等过程,并引入了自动测试技术优化测试流程。最终,测试系统能够满足单粒子效应试验的要求。

设备工作原理的Flash表达方法及其制作技术

基于设备工作原理图，引入Flash技术，首次提出了设备工作原理的Flash表达方法。以SPS设备液压系统为例，对其Flash元件制作方法和技巧进行了深入研究，结果表明：所表达的工作原理动作直观、过程明了、视觉效果独特，较好地实现了设备工作原理动态表述，可操作性强，应用前景广，具有推广价值。

基于Flash MX电力电子技术教学软件开发

在电力电子精品课程建设中,开展了教学手段的改革。为适应多媒体教学的要求,针对电力电子技术教材的特点,利用Delphi7.0和Flash MX软件开发制作了一套形象生动、动画逼真、使用灵活的教学软件(ECWare1.0)。该软件既方便于教师课堂教学使用,又便于网络教学使用。文中详细地介绍了该软件的特点及开发与制作方法,为今后的教学软件开发提供一个借鉴。

基于Flash技术的虚拟近代物理实验研究

虚拟物理实验作为物理实验教学的一个重要补充,目前在高校物理实验教学中越来越受到关注。文章通过介绍基于Flash技术开发虚拟近代物理实验的实例,探讨了虚拟物理实验开发的一般方法及虚拟实验开发过程中的几个关键技术。