中国科学院机构知识库网格系统: 检索

浏览/检索结果: 共7条，第1-7条

帮助

条数/页：排序方式：
	Fluid inclusions, muscovite Ar–Ar age, and fluorite trace elements at the Baiyanghe volcanic Be–U–Mo deposit, Xinjiang, northwest China: Implication for its genesis 期刊论文 OAI收割 Ore Geology Reviews, Ore Geology Reviews, 2015, 2015, 卷号: 64, 64, 页码: 387-399, 387-399 作者: Xiaofeng Li; Guo Wang; Wei Mao; Chunzeng Wang; Rong Xiao \| 收藏 \| 浏览/下载：72/0 \| 提交时间：2019/08/30 Be–u–mo Mineralization Be–u–mo Mineralization fluorite fluid Inclusions fluid Mixing muscovite Ar–ar Dating pb Isotope baiyanghe Deposit northwest China fluorite fluid Inclusions fluid Mixing muscovite Ar–ar Dating pb Isotope baiyanghe Deposit northwest China
	Fluid inclusions, muscovite Ar-Ar age, and fluorite trace elements at the Baiyanghe volcanic Be-U-Mo deposit, Xinjiang, northwest China: Implication for its genesis 期刊论文 OAI收割 Ore Geology Reviews, 2014, 卷号: 64, 期号: 1, 页码: 387-399 Xiaofeng Li; Guo Wang; Wei Mao; Chunzeng Wang; Rong Xiao; Mou Wang 收藏 \| 浏览/下载：44/0 \| 提交时间：2016/03/03 Be–U–Mo mineralization Fluorite Fluid inclusions Fluid mixing Muscovite Ar–Ar dating Pb isotope Baiyanghe deposit Northwest China
	Modified EPAX2 parameterization for estimating the fragment cross sections at intermediate energies 期刊论文 OAI收割 NUCLEAR PHYSICS A, 2013, 卷号: 915, 页码: 59-69 作者: Zhang, X. H. \| 收藏 \| 浏览/下载：26/0 \| 提交时间：2018/07/05 Deduced Modified Epax2 Parameter Set Nuclear Reactions Be-9 Be-9 Calculated Fragmentation Sigma Ta-181(40ar Ta-181(Ni-58 Mass Yields x) x) Isotope Yields Using Epax2 Formula E=57 Mev/nucleon E=140 Mev/nucleon
	Fabrication of high-efficiency ultraviolet blazed gratings by use of direct Ar2-CHF3 ion-beam etching through a rectangular photoresist mask (EI CONFERENCE) 会议论文 OAI收割 International Symposium on Photoelectronic Detection and Imaging 2011: Sensor and Micromachined Optical Device Technologies, May 24, 2011 - May 26, 2011, Beijing, China Tan X. 收藏 \| 浏览/下载：25/0 \| 提交时间：2013/03/25 In ultraviolet spectroscopy groove irregularity and surface roughness of nanometer magnitude can cause a significant loss of diffraction efficiency. Therefore there is a constant need to improve the diffraction efficiency. A blazed grating can concentrate most of the light intensity into a desired diffraction order it is important to control the groove shape precisely so it is the optimum choice among gratings of different kinds of profile. As the operating wavelength of most UV spectral applications is less than 200 nm especially the blaze angle and the apical angle. We have presented a direct shaping method to fabricate EUV blazed gratings by using an ion-beam mixture of Ar+ and CHF2 +to etch K9 glass with a rectangular photoresist mask. With this method the required blaze angle is small we have succeeded in fabricating well-shaped UV blazed gratings with a 1200 line/mm groove density and 8.54 blaze angles and 1200 line/mm groove density and 11.68 blaze angles and the metrical efficiency is about 81% and 78%. The good performance of the gratings was verified by diffraction efficiency measurements. When one uses the etching model the conditions on the ion-beam grazing incident angle and the CHF3partial pressure should be noted. Besides since the etched groove shape depends on the aspect ratio of the photoresist mask ridge if we wish to fabricate larger gratings with this method we must improve the uniformity of the photoresist mask before ion-beam etching. 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).
	Energy levels and radiative rates for optically allowed and forbidden transitions of Ni XXV ion 期刊论文 OAI收割 ASTRONOMY & ASTROPHYSICS, 2008, 卷号: 488, 期号: 3, 页码: 1155 Duan, B; Bari, MA; Zhong, JY; Yan, J; Li, YM; Zhang, J 收藏 \| 浏览/下载：18/0 \| 提交时间：2013/09/17 BE-LIKE IONS OSCILLATOR-STRENGTHS GENERAL PROGRAM SPECTRA PACKAGE BREIT LINES FE AR
	Raman spectra and phonon modes of MgxZn1-xO alloy films (EI CONFERENCE) 会议论文 OAI收割 12th International Conference on II-VI Compounds, September 12, 2005 - September 16, 2005, Warsaw, Poland Wei Z. P.; Lu Y. M.; Shen D. Z.; Zhang Z. Z.; Wu C. X.; Zhang J. Y.; Yao B.; Fan X. W. 收藏 \| 浏览/下载：23/0 \| 提交时间：2013/03/25 Hexagonal MgxZn1-xO alloy layers with 0 &le 0.3 have been grown by plasma-assisted molecular beam epitaxy on sapphire (006) and Si (111) substrates. Their crystal structures are characterized by x-ray diffraction spectroscopy. The nonresonant and resonant Raman spectra were measured using 488 nm line from Ar+ laser and 325 nm line from He-Cd laser by backscattering geometry. Four Raman modes (E2 high LO TO multiphonon processes) were observed in the nonresonant Raman spectra of hexagonal MgxZn1-xO with different Mg contents. The optical phonon frequencies were found to display one-mode behaviour for all the samples since no separate ZnO- and MgO-like modes were observed. The long-wavelength frequencies of ZnO-like optical phonons measured in the resonant Raman spectra can be expressed as linear functions of x. These behaviours can be explained within a modified random-element-isodisplacement model (MREI). 2006 WILEY-VCH Verlag GmbH Co. KGaA.
	Chromosome evolution in bears: reconstructing phylogenetic relationships by cross-species chromosome painting 期刊论文 OAI收割 Chromosome Research, 2004, 期号: 12, 页码: 55–63 作者: Tian Y; Nie WH; Wang JH; Ferguson-Smith MA; Yang FT[*] 收藏 \| 浏览/下载：19/0 \| 提交时间：2010/11/10 be ar cat chromosome painting dog genome phylogeny giant pandain-situ hybridization