RX—AT型环锥行星无线变速器机械效率的研究

根据ＲＸ－ＡＴ型环锥行星无级变速器的传动原理和结构特点,对其机械效率进行了深入的分析与研究,提出了机械效率的理论计算公式,在同样条件下分别计算了ＲＸ－ＡＴ型无级变速器与ＲＸ型无顷变速器机械效率的理论曲线,计算表明：ＲＸ－ＡＴ型无级变速器的机械效率比ＲＸ型无级变速器有明显增加,其综合机械性能有明显改善。     

RX-AT型环锥行星无级变速器机械效率的研究

根据RX－AT型环锥行星无级变速器的传动原理和结构特点,对其机械效率进行了深入的分析与研究,提出了机械效率的理论计算公式．在同样条件下分别计算了RX－AT型无级变速器与RX型无级变速器机械效率的理论曲线．计算表明：RX－AT型无级变速器的机械效率比RX型无级变速器有明显增加,其综合机械性能有明显改善．     

牵引式行星锥环无级变速器机械效率的研究

根据牵引式行星锥环无级变速器的传动原理，对其机械效率进行了深入的分析与研究，提出了机械效率的理论计算公式。通过对ＸＭ７５０型无级变速器机械效率的理论计算与实验对比，理论计算数据与实验数据是基本吻合的。     

牵引式行星锥环无级变速器的优化设计

根据牵引式行星锥环无级变速器的结构特点、传动原理及许用功率的计算方法，提出了以无级变速器恒功率机械特性为目标的优化数学模型，并对其基本几何中参数进行了系列优化设计，可明显改善无级变速器的恒功率机械特性。     

环锥式无级变速器的优化设计

本文从提高环锥式无级变速器的承载能力的角度出发,对环锥式无级变速器的主要结构参数进行了优化设计.     

圆锥形零件拉延时几何模型的分析

探讨了圆锥形零件拉延时零件的几何开头和影响几何形状的因素,建立了圆锥形零件拉延过程较完整的几何模型,用试验对几何模型的适应范围和精度进行了分析。     

浙东某海塘滑坡成因分析

通过对某海塘滑坡段的工程地质条件的论述，并对该海塘产生滑坡的原因进行与总结，以期对类似的海塘建设具有借鉴作用。     

低噪音抗冲击耐磨溜槽的研制

针对选煤厂溜槽使用寿命低、噪音高的问题，研制出了钢板、橡胶板与新型材料衬板相组合的复合结构溜槽。运行结果表明，新型衬板材料具有较高的耐磨性能与冲击韧性，提高了使用寿命，收到了良好的降噪音效果。     

可转位成形铣刀的几何造形

给出了可转位成形铣刀的几何造形方法它包括模块化的结构设计,廓形高度修正算法,刃形误差计算,几何角度沿主切削刃的分布情况等。     

螺旋叶片加工问题的几何模型

对斜螺旋叶片的加工问题进行了研究,描绘出了制造相关的几何模型     

Robust Wavelet-Based Facial Image Watermarking Against Geometric Attacks Using Coordinate System Recovery

A coordinate system of the original image is established using a facial feature point localization technique.After the original image transformed into a new image with the standard coordinate system,a redundant watermark is adaptively embedded in the discrete wavelet transform(DWT) domain based on the statistical characteristics of the wavelet coefficient block.The coordinate system of watermarked image is reestablished as a calibration system.Regardless of the host image rotated,scaled,or translated(RST),all the geometric attacks are eliminated while the watermarked image is transformed into the standard coordinate system.The proposed watermark detection is a blind detection.Experimental results demonstrate the proposed scheme is robust against common and geometric image processing attacks,particularly its robustness against joint geometric attacks.     

Robust Wavelet-Based Facial Image Watermarking Against Geometric Attacks Using Coordinate System Recovery

A coordinate system of the original image is established using a facial feature point localization technique. After the original image transformed into a new image with the standard coordinate system, a redundant watermark is adaptively embedded in the discrete wavelet transform(DWT) domain based on the statistical characteristics of the wavelet coefficient block. The coordinate system of watermarked image is reestablished as a calibration system. Regardless of the host image rotated, scaled, or translated(RST), all the geometric attacks are eliminated while the watermarked image is transformed into the standard coordinate system. The proposed watermark detection is a blind detection. Experimental results demonstrate the proposed scheme is robust against common and geometric image processing attacks, particularly its robustness against joint geometric attacks.