中国科学院机构知识库网格系统: 检索

Propagation factor of partially coherent vector vortex beam in inhomogeneous turbulent atmosphere 期刊论文 OAI收割
Optik, 2022, 卷号: 271
作者: Huang, Kai; Xu, Yonggen; Zhao, Liang; Cao J(曹进); Li YQ(李语强)

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收藏 | 浏览/下载：46/0 | 提交时间：2022/12/05

PCRPVB Inhomogeneous atmospheric turbulence M2 factor and rms angular width Topological charge Zenith angle

beta-D-Glucosyl-(1-4)-alpha-L-thevetosides of 17 beta-digitoxigenin from seeds of Cerbera manghas L. induces apoptosis in human hepatocellular carcinoma HepG2 cells 期刊论文 OAI收割
EXPERIMENTAL AND TOXICOLOGIC PATHOLOGY, 2012, 卷号: 64, 期号: 5, 页码: 403-410
作者: Feng, Bo; Guo, Yue-Wei; Huang, Cai-Guo; Li, Liang; Jiao, Bing-Hua

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收藏 | 浏览/下载：14/0 | 提交时间：2019/01/08

beta-D-Glucosyl-(1-4)-alpha-L-thevetosides of 17 beta-digitoxigenin (GHSC-73) HepG2 Apoptosis-inducing factor (AIF) Mitochondrial membrane potential (Delta psi(m)) Caspase-3 Apoptosis

2 '-epi-2 '-O-Acetylthevetin B extracted from seeds of Cerbera manghas L. induces cell cycle arrest and apoptosis in human hepatocellular carcinoma HepG2 cells 期刊论文 OAI收割
CHEMICO-BIOLOGICAL INTERACTIONS, 2010, 卷号: 183, 期号: 1, 页码: 142-153
作者: Feng, Bo; Guo, Yue-Wei; Huang, Cai-Guo; Li, Liang; Chen, Ruo-Hua

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收藏 | 浏览/下载：23/0 | 提交时间：2019/01/08

2 '-epi-2 '-O-Acetylthevetin B (GHSC-74) Cell cycle arrest Mitochondrial membrane potential (Delta psi(m)) Apoptosis-inducing factor (AIF) Reactive oxygen species (ROS) Caspase Apoptosis

Transient receptor potential channel C3 contributes to the progression of human ovarian cancer 期刊论文 OAI收割
ONCOGENE, 2009, 卷号: 28, 期号: 10, 页码: 1320-1328
Yang, S. L.; Cao, Q.; Zhou, K. C.; Feng, Y. J.; Wang, Y. Z.

收藏 | 浏览/下载：30/0 | 提交时间：2012/07/13

TRPC channels ovarian epithelium cancer proliferation Ca(2+)/calmodulin-dependent kinase II M phase CAPACITATIVE CA2+ ENTRY PROTEIN KINASE-II CELL-PROLIFERATION MAMMALIAN-CELLS TRPC3 CHANNELS CYTOSTATIC FACTOR EPITHELIAL-CELLS CALCIUM EXPRESSION ACTIVATION

C1q-like inhibits p53-mediated apoptosis and controls normal hernatopoiesis during zebrafish embryogenesis 期刊论文 OAI收割
DEVELOPMENTAL BIOLOGY, 2008, 卷号: 319, 期号: 2, 页码: 273-284
作者: Mei, Jie; Zhang, Qi-Ya; Li, Zhi; Lin, Shuo; Gui, Jian-Fang

收藏 | 浏览/下载：89/3 | 提交时间：2010/10/13

C1q-like factor p53 caspase 3/9 brain zebrafish apoptosis G2/M phase arrest hematopoiesis

Shape and alignment measurement of the heliostat by laser deflectometry (EI CONFERENCE) 会议论文 OAI收割
Optical Modeling and Measurements for Solar Energy Systems II, August 13, 2008 - August 14, 2008, San Diego, CA, United states
作者: Liu H.; Zhang H.; Zhang H.; Liu H.; Liu H.

收藏 | 浏览/下载：16/0 | 提交时间：2013/03/25

In the solar tower thermal power generation system such apparatus and corresponding software packages are developed. With the help of these two apparatus (hexagon) the precision of the slope angle of the heliostat is the major factor the heliostat of 1002 for the 1MWe solar tower power plant in Beijing are measured and connected successfully. which influences the efficiency of the system consisting of 55 mirror facets of 1.8182 m2 consequently this angle should be tested accurately. In this paper the methods based on laser deflectometry are proposed to measure the shape error of the mirror facet and the connected error of the facets

The synthesis and field emission property of carbon nanotubes on carbon fibers substrate (EI CONFERENCE) 会议论文 OAI收割
Technical Digest of the 20th International Vacuum Nanoelectronics Conference, IVNC 07, July 8, 2008 - July 12, 2008, Chicago, IL, United states
Leyong Z.; Weibiao W.; Jingqiu L.; Yuxue X.; Da L.; Song C.; Haifeng Z.

收藏 | 浏览/下载：33/0 | 提交时间：2013/03/25

Using ferrocene as catalyst precursor C2H2 as carbon source carbon nanotubes (CNTs) with uniform density were synthesized on carbon fibers substrate by floating catalyst method. The morphology and microstructure were characterized by field emission scanning electron microscope (FESEM) and high-resolution transmission electron microscopy (HRTEM). The observation showed that the length of CNTs is about 2 m the average space between adjacent CNTs is about 300 nm and the diameter of CNT is about 45 nm. The less dense "short and stubby" aligned CNTs films should have good electron field emission characteristics. The results of field emission showed that the emission current of CNTs/carbon fibers was 5 A at the field of 2.5 V/m and the emission current can be 280 A with a field of 7 V/m (the specimen area is 0.25 cm2 and the distance between cathode and anode is 200 m). The calculation based on the F-N plot indicated that the field enhancement factor of CNTs tip is 499122. Using the conductivity and chemical stability of carbon fibers and the uniform and sparse density distribution of CNTs on carbon fibers substrate the tip predominance of carbon nanotubes can be exerted and simultaneously the effect of screening effects between adjacent carbon nanotubes on the field emission performance can also be effectively decreased. The CNTs synthesized on carbon fibers substrate has many predominances for the fabrication of cold cathode devices. For example using the removability of carbon fibers the cathode of CNTs/carbon fibers can be arbitrarily moved enlaced or combined to form different patterns and the cathode of CNTs/carbon fibers can be also fabricated in large size. Therefore CNTs/carbon fibers may have potential application in field emission displays.

Far-field intensity distribution, M-2 factor of beams generated by Gaussian mirror resonator 期刊论文 OAI收割
optik, 2007, 卷号: 118, 期号: 11, 页码: 533, 536
邓德刚; 夏志林; Wei Chaoyang; 邵建达; 范正修

收藏 | 浏览/下载：1213/132 | 提交时间：2009/09/22

M-2 factor Gaussian mirror far-field intensity

Study on LD-pumped Nd:YAG laser cutter (EI CONFERENCE) 会议论文 OAI收割
ICO20: Lasers and Laser Technologies, August 21, 2005 - August 26, 2005, Changchun, China
作者: Zhang G.; Zhang G.; Zhang G.; Zhang J.; Zhang J.

收藏 | 浏览/下载：24/0 | 提交时间：2013/03/25

The theory of laser cutter and the technology neck is analyzed. We can conclude that it is almost impossible to deal with the waste thick silicon wafers which are yielded in producing silicon wafers by conventional eroding or diamond cutting when the cutting velocity equals 100mm/min while it is also unperfected with ecumenical laser cutter without good beam quality or precise laseroptics system. It is represented that high average power and high repetition rate laser with good beam quality and precise laseroptics system are pivotal to obtain excellent cutting effect such as thick groove depth double-layer 0.75mm thick silicon wafer can be penetrated.. The cross section is fine and the groove is narrow rapid cutting speed the cutting quality meets the expecting demand. fine kerf section without considering the effect of technique. Considering laser medium thermal lens effect and thermal focal length changing with pumping power using plano-convex high reflectivity mirror as the back cavity mirror to compensate the heat lens influence a /4 waveplate to compensate heat -induced birefraction utilize the Nd:YAG self- aperture effect more than 50 W average power 1.064 um IR output is obtained with beam quality factor (M2) equals 3.19. Through the LD-Pumped Nd:YAG laser cutter we developed with short focus length negative spherical aberration focusing lens double axis linear step motor positioning system suitable beam expander multiplying factor appropriate diameter of exit beam aperture proper repetition rate when the cutting velocity equals 400mm/min 0.75mm thick silicon wafer can be penetrated

Isospin symmetry breaking in rho ->pi gamma decay 期刊论文 OAI收割
EUROPEAN PHYSICAL JOURNAL A, 2002, 卷号: 14, 期号: 2, 页码: 219-224
作者: Wang, XJ; Jiang, JH; Yan, ML; Wang, XJ , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.

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收藏 | 浏览/下载：19/0 | 提交时间：2012/08/29

Pion Form-factor Meson Radiative Decays Storage Ring Vepp-2m Neutral Detector Charge-symmetry Width Physics Rho(0) Quarks