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[期刊论文] 作者：NIU Xia-mu,
来源：哈尔滨工业大学学报：英文版 年份：2001
The watermarking technique has been proposed as a method by hiding secret information into the image to protect the copyright of multimedia data. But most previ...
[期刊论文] 作者：Niu Qiang,,
来源：Teaching English in China 年份：2001
If input plays a significant role in SLA, then the nextquestion is what kind of input is most helpful to the learner?Krashen (1982) defined that optimal input s...
[期刊论文] 作者：NIU Xia-mu,
来源：哈尔滨工业大学学报：英文版 年份：2001
Digital watermarking has been presented as a new method for copyright protection by embedding a secret signal in a digital image or video sequence. Common digit...
[期刊论文] 作者：NIU Xia-mu,
来源：哈尔滨工业大学学报：英文版 年份：2001
Presents a digital watermarking technique based on discrete fractional Fourier transform(DFRFT),discusses the transformation of the original image by DFRFT, and...
[期刊论文] 作者：Jitai NIU,
来源：材料科学技术：英文版 年份：2001
The effects of laser welding parameter on strength of welded joints were studied. The mechanism for loss of joint strength was analyzed. It was pointed out that...
[期刊论文] 作者：Niu Wenyuan,
来源：中国科学院院刊：英文版 年份：2002
Since 1992, China has put in practice a strategy for the overall coordination of national efforts in the four aspects of population, resources, the environment...
THE PROGNOSIS SIGNIFICANCE OF CATHEPSIN-D EXPRESSION IN THE DIFFERENT LOCATIONS IN AXILLARY NODES NE
[期刊论文] 作者：NIU Yun,
来源：中国癌症研究：英文版 年份：2001
Objective: The aim of this study was to investigate Cathepsin-D (Cath-D) expression in different location and its relationship with prognosis in the axillary ly...
[期刊论文] 作者：Niu Wenyuan,
来源：黑龙江科技学院学报 年份：2002
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7...
The medium-short period tilt deformation phases character before the Zhangbei MS= 6.2 earthquake and
[期刊论文] 作者：AN-FU NIU,
来源：黑龙江科技信息 年份：1999
本文通过对荣华二采区10...
[期刊论文] 作者：Niu Pengcheng,
来源：偏微分方程（英文版） 年份：2000
In this paper, spectral properties of certain left invariant differential operators on two-step nilpotent Lie groups are completely described by using the theor...
[期刊论文] 作者：LI Yan-fei,LI De-jun,ZHANG Chun-yan,
来源：东北农业大学学报(英文版) 年份：2000
Thirteen of 64 turkeys on a commercial turkey farm in Daqing exhibited neurological signs that included backward staggering, incoordination, generalized weaknes...
[期刊论文] 作者：Li Yan-fei,Wang Wei,LI Yi-jing,
来源：东北农业大学学报（英文版） 年份：1999
...
[期刊论文] 作者：Xue Mei NIU,
来源：中国化学快报：英文版 年份：2001
A new indole alkaloid, crenulatine 1, was isolated from the stems of Limonia Crenulata. The structure was identified by spectral means....
[期刊论文] 作者：SHUwan-yin，ZHOUZhong-cheng，NIU,
来源：中国有色金属学报（英文版） 年份：2001
...
[期刊论文] 作者：$$$$Niu Zhen-ying,Tian Huai-ch,
来源：中国生物医学工程学报：英文版 年份：1995
ＤＩＡＧＮＯＳＩＮＧＵＭＢＩＬＩＣＡＬＣＯＲＤＡＲＯＵＮＤＮＥＣＫＢＹＣＯＬＯＲＤＯＰＰＬＥＲＦＬＯＷＩＭＡＧＥＤＩＡＧＮＯＳＩＮＧＵＭＢＩＬＩＣＡＬＣＯＲＤＡＲＯＵＮＤＮＥＣＫＢＹＣＯＬＯＲＤＯＰＰＬＥＲＦＬＯＷＩＭＡＧＥＹａｎｇＹｉ；ＷｅｉＲｏｎ.........
[期刊论文] 作者：Niu Min (1) niumin-2000@263.ne,
来源：武汉大学学报：自然科学英文版 年份：2002
由一个动态系统，我们意味着一双(X， T ) ， whereX 是紧缩的 Hausdorff 空间。在我们定义的这份报纸坚持 semigroupA (X， T -- X x，它是子网的所有 pointwise 限制的集合(T n ) nN...
The Electroluminescence Characterization of Poly(p-phenyleneethynylene)——The π-conjugated Backbone I
[期刊论文] 作者：NIU Jun-feng YANG Mu-jie,
来源：高等学校化学研究：英文版 年份：2002
π-Conjugated poly(p-phenyleneethynylene) with the interruption of the conjugation by a butylene unit was synthesized. Its absorption, PL and EL spectra were in...
[期刊论文] 作者：PENG Zi-zheng,NIU Zhi-ren,
来源：黑龙江科技学院学报 年份：2001
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7...
[期刊论文] 作者：NIU Xiamu,SUN Shenghe,
来源：中国电子杂志（英文版） 年份：2001
A video watermarking techniquebased on discrete fractional Fourier transform(DFRFT) is proposed. Each frame of an original videois first decomposed into two-dim...
[期刊论文] 作者：NIU Xiamu,SUN Shenghe,
来源：中国电子杂志（英文版） 年份：2001
A method of embedding a digital wa-termark image in video is proposed in this paper.Bymultiresolution signal decomposing,the decomposedwatermark image with diff...
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