无损的

• The experiment results indicated that by application of new control strategy , the charging efficiency was raised to about 90 % , the charging period was reduced to within 2 hours , and there was no apparent electrolyte temperature - rise , which means high efficiency , fast and damage - free charge is realized
  实验表明，采用新型控制策略的充电过程可使充电效率提高到90左右，充电时间缩短到2小时以内，蓄电池电解液的温升较之常规充电亦没有明显升高，实现了高效、快速、无损的充电思想。
• Presently , most of the researchers focused their attention on the lossy compression of bionedical signals , but lossless and near - lossless compression is practically expected because the general lossy compression techniques can not serve the high fidelity requirement of signals in this field
  鉴于当前生物医学信号压缩技术主要偏重于有损压缩技术的研究，而较少研究无损近无损压缩技术，然而在临床和科研应用中，首先要求的是生物医学信号必须具有高可信度，所以更期望使用无损或近似无损的压缩技术。
• In this paper , two different passive snubber cells are proposed . by using the proposed snubber cells , the turn - on di / dt was restrained by a small inductor , and the turn - off dv / dt was restrained by a small capacitor . based on those two snubber cells , a new family of converters was introduced and an advanced pfc converter was designed
  本文提出了两种新型无源无损的缓冲电路单元，通过使用该缓冲电路单元，主开关开通时所产生的di dt被一个较小电感所限制，主开关关断时所产生的dv dt被一个小电容所限制，从而实现了主开关器件的软开关变换。
• With some examples of applying the ground - penetrating radar to detecting the thickness of various structural layers in the highway , the present paper has demonstrated that , when the ground - penetrating radar is used to detect the thickness of the road surface layer , continous , rapid , accurate and nondestructive high - precision results can be obtained
  摘要本文著重介绍透地雷达检测公路各结构层厚度的几个实例，说明透地雷达进行路面层厚度检测取得连续、快速、准确、无损的高精度成果。
• The author ' s attempt in this dissertation is by utilizing the technical advances and newest fruits in power electronics , pattern recgnition and parameter identification , artificial intelligence , and dsp application to study the problem of multi - aim optimization , striving for a high - efficiency , fast and damage - free approach of lead - acid battery charging
  作者在论文工作中试图利用现代电力电子技术、模式识别和参数辨识、人工智能和dsp应用等领域中的技术进展和最新成果，探索铅酸蓄电池充电过程的多目标优化问题，力求形成高效、快速、无损的铅酸蓄电池优化充电思想和技术方案。
• The t1 - weighted and ^ - weighted magnetic resonance imaging ( mri ) have been used to study the morphogenesis of chicken embryo and other contains in the egg during the earlier hatching process . t2 values of amniotic fluid , yolk and egg white have been measured by the means of multi slice multi echo ( msme ) sequence . in - vivo " h magnetic resonance spectroscopy ( in - vivo * h mrs ) has been used to analyze the ingredients of amniotic fluid , yolk and egg white
  用核磁共振成像( magneticresonanceimaging ， mrl )中ti加权、 2加权成像的方法在无损的条件下对鸡胚发育过程中的形态结构变化进行了研究，得到了胚胎及蛋白、蛋黄等在胚胎发育的早期结构变化的图像，并用多片多回波( multislicemultiecho ， msme )的方法测定了它们中质子的r2值，为研究胚胎的发育过程提供了有价值的参考。
• A new - type buck - boost topology that uses a two - unit ipm as main switching devices to perform charger and depolarizer ; the software / hardware implementation of a dsp ( tms320f240 ) based system controller that performs high - speed data - acquisition , event management , control algorithm and output control
  -实现基于数字信号处理器tms320f240的充电装置控制电路的软硬件设计，实现高速的数据采集、事件管理、复杂的控制算法和输出控制，从而实现真正高效、快速、无损的充电过程。
• 3 . lossy and lossless image compression is realized by means of integer wavelet transform , and the shortcoming of pure lossy compression with non integer ones is overcame . here the influence of different wavelet base to the effect of compression is discussed , and conclusions are obtained as follows : to the choice of wavelet base in spiht image codec , in lossless codec , integer lg5 / 3 and in lossy codec , non integer db9 / 7 wavelet base is recommended
  3 、将整数小波变换应用于图像编码之中，克服了非整数小波变换只能有损压缩的缺点，实现了图像从有损到无损的压缩，并分析了不同小波基对压缩性能的影响，最后得到如下结论：在spiht压缩编码中，有损压缩推荐使用非整数db9 7小波变换，无损压缩推荐使用整数lg5 3小波。