机构

• 金属研究所 [2]
• 长春光学精密机械与物... [2]
• 福建物质结构研究所 [1]
• 近代物理研究所 [1]

采集方式

• OAI收割 [6]

内容类型

• 期刊论文 [4]
• 会议论文 [2]

发表日期

• 2010 [1]
• 2009 [2]
• 2008 [1]
• 2007 [1]
• 2006 [1]

学科主题

筛选

浏览/检索结果: 共6条，第1-6条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Theoretical Determination of Lowest Structures of All-Metal Aromatic Clusters M4L2 (M = Al, Ga, In, Tl; L = Li, Na, K, Rb, Cs) 期刊论文  OAI收割 International Journal of Quantum Chemistry, 2010, 卷号: 110, 期号: 5, 页码: 1127-1135 C. Y. Mang, C. P. Liu and K. C. Wu 收藏  |  浏览/下载：54/0  |  提交时间：2012/11/02 all-metal aromatic cluster  lowest isomer  MP2  density functional  theory  coupled cluster method  quadratic configuration-interaction  compact effective potentials  set  model chemistry  exponent basis-sets  correlation-energy  atoms  molecules  density  approximation  efficient   A simulation of Cr depletion in austenitic stainless steel with cellular automaton 期刊论文  OAI收割 Computational Materials Science, 2009, 卷号: 45, 期号: 4, 页码: 899-904 X. F. Yu; S. H. Chen 收藏  |  浏览/下载：22/0  |  提交时间：2012/04/13 Intergranular corrosion  Cellular automaton  Depletion  Austenitic  stainless steel  stress-corrosion cracking  boundary chromium depletion  lowest-energy  principle  grain-growth  intergranular corrosion  fe alloys  dynamic  recrystallization  acid-solution  aisi 316l  evolution   Effect of solution treatment conditions on the sensitization of austenitic stainless steel 期刊论文  OAI收割 Journal of the Serbian Chemical Society, 2009, 卷号: 74, 期号: 11, 页码: 1293-1302 X. F. Yu; S. H. Chen; L. Wang 收藏  |  浏览/下载：24/0  |  提交时间：2012/04/13 intergranular corrosion  degree of sensitization  cellular automaton  austenitic stainless steel  stress-corrosion cracking  cr-fe alloys  boundary chromium depletion  cellular-automaton method  lowest-energy principle  grain-growth  intergranular corrosion  dynamic recrystallization  acid-solution  aisi  316l   A quasi-dynamics method for searching for cluster isomers 期刊论文  OAI收割 ACTA PHYSICA SINICA, 2008, 卷号: 57, 页码: 387-391 作者:  Zhou Shi-Yun;  Wang Yin;  Ning Xi-Jing   |  收藏  |  浏览/下载：16/0  |  提交时间：2018/05/31 clusters  isomers  lowest-energy  global optimization   Mechanisms of energy transfer in Pr3+ and Cr3+ codoped SrAl12O19 phosphor (EI CONFERENCE) 会议论文  OAI收割 209th ECS Meeting, May 7, 2006 - May 12, 2006, Denver, CO, United states 作者:  Zhang J.;  Wang X.-J.;  Zhang G.;  Zhang G.;  Zhang G. 收藏  |  浏览/下载：18/0  |  提交时间：2013/03/25 A two-step energy transfer was observed in Pr3+ and Cr 3+ codoped SrAl12O19 phosphor  which results in a two-photon luminescence for one UV/vacuum-UV photon absorbed. For one Pr 3+ ion excited to the lowest 4f5d states  two Cr3+ ions may be excited and emit two red photons due to 2E- 4A2 transitions of the Cr3+ ions  Cr 3+ ions can be excited into the 4T1(F) levels by cross relaxation of Pr3+ 1S0- 1I6 or by direct energy transfer from Pr3+ 3P0  1 states. The mechanisms of the two-step energy transfer process were studied based on spectra and lifetime measurements. copyright The Electrochemical Society.   Compression of remote sensing image based on Listless Zerotree Coding and DPCM (EI CONFERENCE) 会议论文  OAI收割 ICO20: Remote Sensing and Infrared Devices and Systems, August 21, 2005 - August 26, 2005, Changchun, China Chen S.-L.; Huang L.-Q. 收藏  |  浏览/下载：31/0  |  提交时间：2013/03/25 The data quantity of remote sensing image is very large. Furthermore  the lowest frequency subband contains the main energy of original image and reflects the coarse of original image after remote sensing image is transformed by wavelet  so it is very important to the reconstructed image. Therefore a hybrid image compression method based on Listless Zerotree Coding (LZC) and DPCM is presented  namely  the lowest frequency subband is compressed by DPCM and others are compressed by LZC. LZC is a kind of zerotree coding algorithm for hardware implementation  which is based on SPIHT and substitutes two significant bit maps for three lists in SPIHT algorithm. Thereby LZC significantly reduces the memory requirement and complexity during encoding and decoding procedure. But LZC doesn't recognize the significance of grandchild sets  so the PSNR values of LZC are lower than SPIHT's and the compression speed drops. It is improved by adding a significant bit map that recognizes the significance of grandchild sets. A comparison reveals that the PSNR results of the hybrid compression method are 2 dB higher than those of LZC  and the compression speed is also improved.