A reversible watermarking algorithm based on difference expansion and companding technique is proposed.
提出一种基于差扩展和压扩技术的可逆水印算法。
When the termination pressure in the reversible adiabatic expansion process is equal to that in the irreversible adiabatic expansion process, the external work in the former is equal to the expansion work, however that in the latter is less than the expansion work.
指出了文献[1]中关于闭口系统不可逆绝热过程分析存在的问题，认为闭口系统绝热膨胀过程对外所作的功等于热力学能降，而非膨胀功等于热力学能降。
This paper presents a new method of digital image sharing. Firstly, construct a reversible matrix, decompose a secret image into several scrambling and encryption images at one time by matrix operation, then camouflage them into several megascopic and meaningful carrier images to store or transfer. This algorithm combines the scrambling technique, encryption technique, information hiding and sharing technique, but with much simpler algorithm, less computation time, smaller pixel expansion, better recovery effect. The results show that the algorithm has application value in the field of secret image storage and transmission.
提出一种数字图像分存方法，首先构造可逆矩阵，并通过矩阵运算直接将秘密图像分解成几幅等大小的置乱加密图像，然后分别将它们伪装在几幅经过放大且有意义的载体图像中，实现了图像分存，文中将置乱加密、信息隐藏、分存技术三者有机结合，整个算法实现简单，运算量小，数据膨胀率低，安全性高，秘图恢复效果较好，大量实验也验证了算法的有效性。
Leading products are reversible Grinding machine, Central hammer crusher, shaker, volatility screen, roller screen, a round shaker, pressure-measuring machines to coal, coal-to the impeller, impeller to the powder machine, feeding trough Machine, buried en masse to the coal, belt conveyors, screw Unloading machines, air preheater of me, lock gas, silencers, expansion, fishing Slag, down-the-hole drilling, hydraulic hammer broken, dust bag, Rotating cylinder, such as water film ESP more than 20 products.
主导产品有可逆式细碎机、环锤式破碎机、振动筛、波动筛、滚轴筛、圆振动筛、耐压计量式给煤机、叶轮给煤机、叶轮给粉机、槽式给料机、埋刮板给煤机、带式输送机、螺旋卸车机、空气预热器管箱、锁气器、消音器、膨胀器、捞渣机、潜孔钻、液压破碎锤、布袋除尘器、旋筒水膜除尘器等二十余系列产品。
Staircase voltammetry is the typical representative of step voltammetry, which may be viewed as the discrete analogue of linear sweep voltammetry, By using Reimann-Stielties series expansion to semi-derivative operator, two current equations, which are quite in similar, for the simple reversible electrode process of staircase voltammetry and linear sweep voltammetry are obtained.
全文分二个部分，共六章。其主要内容如下：1。采用Reimann-Stielties级数展开法对简单可逆电极体系的阶梯扫描伏安法和线性扫描伏安法电流方程式中的半微分进行级数展开，得到了能有机统一这两种伏安法的电流函数表达式。表达式直观地揭示了两者之间的相互关系。
Reversible Image Authentication Based on Difference Expansion and Error Correction Code
基于差值扩展和纠错编码的可逆图像认证
This paper proposed a reversible data hiding algorithm for color images based on prediction error difference expansion and Least Significant Bit (LSB) replacement.
将差值扩展技术应用于彩色图像，提出一种基于预测误差差值扩展和最低有效位（LSB）替换的彩色图像可逆数据隐藏算法。
As we know, primary SCI is an un-reversible process, and secondary SCI is the main factor causing the expansion of pathological changes in myeloid tissue, aggravating cellula nervosa depletion and finally affecting function prognosis.
由于SCI的原发性损伤不可逆；加之继发性损伤是造成脊髓组织原发伤范围不断扩大、加重神经细胞缺失进而影响预后的重要因素。
Reversible digital watermarking scheme for 2-D vector maps based on difference expansion and shifting Holding our ground and extending it are inseparably connected.
基于差分扩张和平移的2D矢量地图的可逆水印保持阵地和发展阵地是不可分离的。
Q In other words, and irreversible isothermal expansion takes less heat from the hot reservoir than a reversible one does.
不可逆小于q可逆，q，irreversible，is，less，than，q，reversible。，换句话说，不可逆等温膨胀，从高温热源吸收的热量，少于可逆等温膨胀。
Reversible Watermarking Algorithm for Vector Maps Using the Difference Expansion Method of a Composite Integer Transform
采用复合整数变换差值扩大法的矢量地图可逆水印算法
It is proved that system heat quantity absorbing by reversible and irreversible process is not equal, so, the paper points out that merge formulas on mathematical expansion of the second law of thermodynamics are incorrect, and raises the proposition of correct expansion.
通过证明可逆和不可逆两种过程系统吸收热量的不相等，指出将热力学第二定律表示式写成合并式的作法是不妥的，并提出了正确表示的建议。
Manufactured from high quality raw materials in electric arc furnace, Fused Zirconia Mullite with low reversible thermal expansion, excellent resistance to cracking and spalling can be used in continuous casting expendables, glass kiln furniture, nozzle bricks, etc
电熔锆莫来石采用高纯锆英砂和氧化铝在电弧炉内熔炼而成，倾倒炉生产的电熔锆莫来石，具有产品均匀性好、气孔率低、导热性能好、热膨胀系数小、抗渣性能强等优点。