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276篇 您的检索式:作者名="LLu"
    题名 作者 年代 出处 被引量
1THREE-DIMENSIONAL COUPLED IMPELLER-VOLUTE SIMULATION OF FLOW IN CENTRIFUGAL PUMP AND PERFORMANCE PREDICTION显示文摘通过一台全部离心泵的三维的狂暴的流动用骚乱模型由旋转和弯曲修改了的 k-epsilon 被模仿, 适合andbody 的坐标,速度和压力地在各种各样的工作下面为泵被获得的 SIMPLEC 方法调节,它被用来预言头和泵的水力的效率,并且结果与测量价值相应很好。计算结果显示压力在片的吸方面上比那在压力方面上是更高的;当压力上的增加站在一起时,相对速度在吸方面逐渐地从 impeller 入口减少到插头,它最后在 impeller 插头在压力方面上在吸方面和更高的方面上导致更低的相对速度;impeller 流动地是不对称的,即速度和压力地在在 impeller 的所有隧道之中完全是不同的;在涡囊,静态的压力逐渐地与流动线路增加,并且大压力感谢发生在舌头;第二等的流动在螺线的后面的部分存在。ZHAO Binjuan YUAN Shouqi LlU Houlin TAN Minggao 2006Chinese Journal of Mechanical Engineering2006,19,1:28
2Nonnegative matrix factorization and its applications in pattern recognition显示文摘Matrix factorization is an effective tool for large-scale data processing and analysis. Non- negative matrix factorization (NMF) method, which decomposes the nonnegative matrix into two non- negative factor matrices, provides a new way for ma- trix factorization. NMF is significant in intelligent information processing and pattern recognition. This paper firstly introduces the basic idea of NMF and some new relevant methods. Then we discuss the loss functions and relevant algorithms of NMF in the framework of probabilistic models based on our re- searches, and the relationship between NMF and information processing of perceptual process. Finally, we make use of NMF to deal with some practical questions of pattern recognition and point out some open problems for NMF.LlU Weixiang ZHENG Nanning YOU Qubo 2006Chinese Science Bulletin2006,51,1:21
3Cardioprotective effects of Guanxinshutong (GXST) against myocardial ischemia/ reperfusion injury in rats显示文摘对 cardioprotective 药的灌注损害的 BackgroundThe 保护的效果最近被评估了并且发现了不适当。Guanxinshutong (GXST ) ,传统的植物的联合和蒙古的药,在在临床的试用对待心绞痛有效、安全。我们在老鼠对心肌的局部缺血和灌注(MI/R ) 损害估计 GXST 的 cardioprotective 效果并且探索它的可能的 mechanism.MethodsForty -- 五只男 Sprague Dawley 老鼠被使随机化进三个组:non-MI/R 组(假冒, n = 15 ) ,与车辆对待的 MI/R 组(控制, n = 15 ) 并且与 GXST 对待的 MI/R 组(药, n = 15 ) 。MI/R 被左前面的下降冠的动脉(男孩) 的结扎导致 30 分钟,在控制和药组由 2/24 小时灌注列在后面。在假冒的组,没有吸藏, LAD 被暴露。GXST 粉末(在药组) 或盐(在控制和假冒的组) 在外科以前从 7 白天经由直接胃的 gavage 被管理。血样品从颈动脉动脉被收集(10 只老鼠各组织) 在 2 小时灌注以后,决定肿瘤坏死 factor-α 的层次;(TNF-α) , interleukin-1β(IL-1β) , interleukin-6 (IL-6 ) 和用连接酶的 immunosorbent 试金的细胞间的粘附 molecule-1 (ICAM-1 ) 。动物然后被牺牲,心为组织病理学说和西方的污点分析被收获。梗塞尺寸在留下被测量在在 24 小时 reperfusion.ResultsGXST 以后的每个组的五只老鼠显著地减少了 TNF-α 的层次;, IL-1β, IL-6, ICAM-1, apoptosis 索引(AI ) 和梗塞缩放。GXST 显然也禁止了原子因素 kappa B (NF-κ B ) 活动什么时候与控制组相比(所有 P <0.05 ).ConclusionsGXST 在在老鼠保护心肌层免于 MI/R 损害是有效的。它的可能的 cardioprotective 机制包含煽动性的反应和 apoptosis 追随者 MI/R 损害的抑制。Zhuo Llang Li-Feng Llu Tian-Ming Yao Yu Huo Ya-Ling Han 2012Journal of Geriatric Cardiology2012,9,2:13
4Simulating experiment on soaking and leaching of Cd in the Niujiaotang Cd-rich Zn deposit, Guizhou Province, China显示文摘CADMIUN is a dispersed element and has long been explored and utilized as a by-product of Pb-Zn ores.Current research on Cd is focused on the following aspects: (i) environmental effects due to the migration and enrichment of Cd as a heavy metal poisonous element in water (rivers, lakes, industrially discharged waste water), sediments and soils. The research paper concerned can be seen in variousjournals of environmental science; and (ii) exploration of the existing forms of Cd and its independentminerals and ordinary geological problems. However, many researchers have paid little attention tothe geochemical behavior of Cd and its environmental effects under supergene weathering-leaching conditions in Cd-bearing Pb-Zn deposits. Cd can be separated from Zn in the supergene weathering processand its sulfate CdS0-4 is easy to dissolve in water. Our preliminary studies showed that Cd can be enrichedto some extent under supergene weathering conditions in Niujiaotang deposit. The stronger the extentYE LJn and LlU Tiegeng Open Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China 1999Chinese Science Bulletin1999,44,S2:7
5Antimonene:a long-term stable two-dimensional saturable absorption material under ambient conditions for the mid-infrared spectral region显示文摘We experimentally demonstrate a long-term stable two-dimensional saturable absorption material under ambient conditions—multi-layer antimonene feasible for the mid-infrared spectral region—for the first time to our knowledge. The multi-layer antimonene material prepared using a liquid-phase exfoliation method was coated on a quartz/Ca F_2 for characterizations and an Au mirror as a reflection-type saturable absorber(SA) device. It has a modulation depth of 10.5%, a saturation peak intensity of 0.26 GW∕cm^2, and a non-saturation loss of 19.1% measured at 2868.0 nm using the typical power-dependent method. By introducing the SA device into a linear-cavity Ho^(3+)∕ Pr^(3+)-codoped fluoride fiber laser at 2865.0 nm, stable Q-switched pulses were obtained. It generated a maximum output power of 112.3 m W and pulse energy of 0.72 μJ, while the shortest pulse duration and largest repetition rate were 1.74 μs and 156.2 k Hz, respectively. The long-term stability of the SA device was also checked using the same laser setup within 28 days. The results indicate that multi-layer antimonene is a type of promising long-term stable SA material under ambient conditions that can be applied in the mid-infrared spectral region.HONGYU Luo XIANGLING TIAN YING GAO RONGFEI WEI JIANFENG LI JIANRONG QIU YONG LlU 2018Photonics Research2018,6,9:5
6The structural basis of the dominant negative phenotype of the Gαi1β1Y2 G203A/A326S heterotrimer显示文摘Ping LIU Ming-zhu JIA X Edward ZHOU Parker W DE WAAL Bradley M DICKSON Bo LlU Li HOU Yan-ting YIN Ya n-yong KANG Yi SHI Karsten MELCHER H Eric XU Yi JIANG 2016Acta Pharmacologica Sinica2016,37,9:3
7Comparison of Clinical Features between Pyoderma Gangrenosum Concomitant by Inflammatory Bowel Disease and Idiopathic Pyoderma Gangrenosum显示文摘Yan-Yun Jiang Ji Li Yue Li Qiang Wang Shuang Llu Kai Fang Jia-Ming Qian Hong-Zhong Jin 2017Chinese Medical Journal2017,,22:2
8A generalized model for conic flexure hinges显示文摘CHEN Guimin LlU Xiaoyuan GAOHongwei 2009Review of Scientific Instruments2009,80,05:1
9Chromatographic Fingerprinting Analysis of Danshen Root (Salvia Miltiorrhiza Radix et Rhizoma) and Its Preparations Using High Performance Liquid Chromatography with Diode Array Detection and Electro?spray Mass Spectrometry (HPLC-DAD-ESIIMS)显示文摘LlU M Ll Y G ZHANG Fver al 2007] Sep Sci2007,30,:1
10Relationship of lipid oxidation with subclinical atherosclerosis and 10-year coronary events in general population显示文摘Miquel Gómez Joan Vila Roberto Elosua Lluís Molina Jordi Bruguera Joan Sala Rafel Masià Maria Isabel Covas Jaume Marrugat Montserrat Fitó 2014Atherosclerosis2014,,1:1
11Plasma Fatty Acid-Binding Protein 4 Increases with Renal Dysfunction in Type 2 Diabetic Patients without Microalbuminuria显示文摘Cabré Anna Lázaro Iolanda Girona Josefa Manzanares Josep M Marimón Francesc Plana Núria Heras Mercedes Masana Lluís 2008Clinical Chemistry2008,,1:1
12Well-aligned nano-box-beams of SnO,显示文摘LlU v DONG H LlU M L 2004Adv Mater2004,16,4:1
13Lactulose in treatment of hepatic encephalopathy in patient with liver cirrhosis显示文摘Shuliat'ev IS I1'chenko Llu Vinnitskaia EV 2002Eksp Klin Gastroenterol2002,,5:1
14Lactulose in treatment of hepatic encephafopathy in patient with liver cirrhosis显示文摘Shuhm'ev IS chenko Llu Vinnitskaia Ev 2007Eksp Klin Gastroentrtol2007,05,3:1
15Synthesis and characterization of rutile SnO, nanorods显示文摘LlU Y K ZHENG C L WANG W Z er al 2001Adv Mater2001,13,24:1
16Blood microcirculation disorder in patients with bronchopulmonary diseases and methods of microcirculation study 显示文摘Korzheva llu Lakovlev VN Mumladze RB 2012Ter Arkh2012,84,6:1
17Design of powder metallurgy titanium alloys and composites 显示文摘LlU Y CHEN L F TANG H P LlU C T LlU B HUANG B Y 2006Mater Sci Eng A2006,418,:1
18Effects of CO2 laser pretreatment on drought stress resistance in wheat显示文摘QIU Z B LLU X TIAN X J 2008Photochemistry Photobiology B : Biology2008,90,:1
19Heat-stress-induced damage to porcinesmall intestinal epithelium associated with downregulation of epi-thelial growth factor signaling显示文摘Llu F Yin J Du M 2009ANIM Sci2009,87,:1
20Microstructures evolution and mechanical properties of a powder metallurgical titanium alloy with yttrium addition 显示文摘LlU Y LlU Y 0 WANG B QIU J LlU B TANG H 2010Mater Manuf Process2010,25,:1
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