基于生成对抗网络的无载体信息隐藏

提出了一种基于生成对抗网络的无载体信息隐藏方法.发送方用伪装图像和Improved Wasserstein GAN生成一张与秘密图像相同的图像,发送方发送伪装图像,接收方收到伪装图像后用生成器生成和秘密图像视觉上相同的图像.与现有的信息隐藏方法相比,该方法不需要修改载体,能够有效地抵抗隐写分析工具的检测,能够达到秘密信息安全传输的目的.     

In situ backscattered electron imaging study of the effect of annealing on the deformation behaviors of Ni electroformed from additive-free and saccharin-containing sulfamate solutions

The Ni samples were electroformed from additive-free(AF) and saccharin-containing(SC) sulfamate solutions, respectively. In situ backscattered electron(BSE) imaging, electron backscatter diffraction(EBSD), and electron-probe microanalysis(EPMA) were used to investigate the effect of annealing on the deformation behaviors of the AF and SC samples. The results indicate that columnar grains of the as-deposited AF sample had an approximated average width of 3 μm and an approximated aspect ratio of 8. The average width of columnar grains of the as-deposited SC sample was reduced to approximately 400 nm by the addition of saccharin to the electrolyte. A few very-large grains distributed in the matrix of the SC sample after annealing. No direct evidence indicated that S segregated at the grain boundaries before or after annealing. The average value of the total elongations of the SC samples decreased from 16% to 6% after annealing, whereas that of the AF samples increased from 18% to 50%. The dislocation recovery in grain-boundary areas of the annealed AF sample was reduced, which contributed to the appearance of microvoids at the triple junctions. The incompatibility deformation between very-large grains and fine grains contributed to the brittle fracture behavior of the annealed SC Ni.     

Facile synthesis of flake-like dihydrate zinc oxalate particles

Monodispersed dihydrated zinc oxalate(ZnC_2O_4·2H_2O) particles with characteristic morphology were synthesized by aging a mixed solution of zinc nitrate(Zn(NO_3)_2) and sodium oxalate(Na_2C_2O_4) in the presence of a citrate ligand, with an average flat size of approximately 10–15 μm. The important parameters, including the solution pH values and the concentration of the zinc ions and citrate ligand, were investigated using a series of experiments. It is verified that the citrate ligand significantly affects the morphology of zinc oxalate particles, probably via its multiple roles of chelating, dispersing, and selective absorption. Thermodynamic equilibrium of the distribution of zinc species in an aqueous solution of Zn(Ⅱ)-citrate-oxalate-H_2O was estimated to explain the experimental results and to clarify the size and morphological evolution mechanism of the precipitated particles.     

从列维纳斯的“杀人”概念看孟子的同化意识

孟子憎恨"嗜杀人者",厌恶诸侯争战,但实际上,他的思想和言行中处处流露着一种同化他人的意识,这种同化意识恰恰容易导致"杀人"乃至战争。孟子的同化意识根由于他对人伦关系所提出的严苛的交互性的道德要求,而这种交互性道德要求的提出又与其对人性问题的看法有关。消除孟子学说的同化倾向的途径不在于效法列维纳斯,不在于放弃孟子的普遍主义伦理学的思维模式,而是应在保持其"人性皆善"的理想性的前提下,用道德感化取代道德暴力。     

浅议复合图书馆

在数字图书馆全面到来之前，“复合图书馆”应运而生。阐述了复合图书馆的背景和概念，分析了复合图书馆的特点、优点和不足，提出了应对复合图书馆时代来临的对策。     

基于老工业基地振兴的3PL核心竞争力制度创新研究——以吉林省为例

随着东北老工业基地的振兴,第三方物流已成为吉林省经济新的增长极和促进吉林省经济增长的不可替代的动力源,但是其在发展过程中仍存在规模小、区域发展不平衡、基础设施落后、内外部环境不完善等制约因素.因此,应加强对3PL企业的扶持和管理力度,营造其发展的良好环境;加快3PL基础配套设施的完善;积极培育3PL市场;重视3PL人才的培养和引进.     

图书馆编目数据外包问题的探讨——以西安图书馆为例

对图书馆编目数据外包工作中产生的数据错误的原因进行了分析,并提出了防范数据错误的措施,以完善和促进编目数据外包工作。     

（1-uv）-CONSTACYCLIC CODES OVER Fp＋uFp＋vFp＋uvFp

Constacyclic codes are an important class of linear codes in coding theory.Many optimal linear codes are directly derived from constacyclic codes.In this paper,（1 — uv）-constacyclic codes over the local ring Fp ＋ uFp ＋ vFp ＋ uvFp are studied.It is proved that the image of a（1 — uv）-constacyclic code of length n over Fp ＋ uFp ＋ vFp ＋ uvFp under a Gray map is a distance invariant quasi-cyclic code of index p2 and length p3n over Fp.Several examples of optimal linear codes over Fp from（1 — uv）-constacyclic codes over Fp ＋ uFp ＋ vFp ＋ uvFp are given.