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| 1 | The motion analysis of fire video images based on moment features and flicker frequency显示文摘In this paper, motion analysis methods based on the moment features and flicker frequency features for early fire flame from ordinary CCD video camera were proposed, and in order to describe the changing of flame and disturbance of non-flame phenomena further more, the average changing pixel number of the first-order moments of consecutive flames has been defined in the moment analysis as well. The first-order moments of all kinds of flames used in our experiments present irregularly flickering, and their average changing pixel numbers of first-order moments are greater than fire-like disturbances. For the analysis of flicker frequency of flame, which is extracted and calculated in spatial domain, and therefore it is computational simple and fast. The method of extracting flicker frequency from video images is not affected by the catalogues of combustion material and distance. In experiments, we adopted two kinds of flames, i. e. , fixed flame and movable flame. Many comparing and disturbing experiments were done and verified that the methods can be used as criteria for early fire detection. | LIJin FONG N.K.,CHOW W.K.,WONG L.T.,LUPuyi XUDian-guo | 2004 | Journal of Marine Science and Application2004,3,1: | 9 |
| 2 | 水泥改良土力学特性试验研究显示文摘在大量动静三轴试验的基础上,研究了水泥改良土试样的应力-应变关系,掺和比及围压等影响因素,以及临界动应力、累计塑性应变、弹性应变及回弹模量的变化规律,同时,还研究了水泥土的回弹模量和动弹性应变与振动次数的变化规律.试验结果表明:水泥土的应力-应变曲线呈软化型,存在明显的应力峰值点;动应力存在一个临界值,土体的变形分为衰减型、破坏型及临界型;水泥土的临界动应力是素土的两倍以上,随掺和比的增加而增长,但增长趋势变缓. | 王天亮 刘建坤 田亚护 Roman L.T. | 2010 | 北京交通大学学报2010,34,1: | 8 |
| 3 | INTERNAL OXIDATION KINETICS &DIFFUSION MECHANISM OF OXYGEN IN Cu-Al SINTERED ALLOY显示文摘INTERNALOXIDATIONKINETICS&DIFFUSIONMECHANISMOFOXYGENINCu-AlSINTEREDALLOY¥S.G.Tian;L.T.Zhang;H.M.Shao;L.J.Zou;T.F.Li;andH.C.Ya... | S.G. Tian L.T. Zhang H. M. Shao L.J. Zou T.F. Li and H. C. Yang (Department of Materials Science, Shenyang Polytechnic University, Shenyang 110023, China) (Corrosion Science Laboratory, Institute of Corrosion and Protection of Metals, Chinese Academy | 1996 | Acta Metallurgica Sinica(English Letters)1996,9,5: | 6 |
| 4 | 结肠直肠癌中VEGF-C与Cox-2的共表达及与淋巴结转移的关系显示文摘PURPOSE:Several lines of experimental evidence indicated that over-expression of vascular endothelial growth factor-C and cyclooxygenase-2 genes promotes angiogenesis and lymphangiogenesis,both of which are essential for the growth and spreading of tumor cells.This study was designed to evaluate the coexpression of vascular endothelial growth factor-C and cyclooxygenase-2 in human colorectal carcinoma to determine their relationships and correlations with lymph node metastasis and prognosis.METHODS:Tissue samples of primary tumors and metastatic lymph nodes from 150 patients undergoing intentionally curative surgical resections for colorectal adenocarcinoma were immunohistochemically examined for vascular endothelial growth factor-C,cyclooxygenase-2,and CD34 expressions.Then,we analyzed their relationships and correlations with clinicopathologic findings and patients’survival time.RESULTS:The positivity rate of vascular endothelial growth factor-C and cyclooxygenase-2 in the primary tumor was 68 and 72.7 percent,respectively,and in the metastatic lymph nodes was 93.3 and 80 percent,respectively.A significant correlation was found between the expression scores of vascular endothelial growth factor-C and cyclooxygenase-2(P < 0.0001),and both also were correlated to microvessels density and several clinicopathologic parameters,including primary tumor size,lymph node metastasis,lymphatic invasion,and TNM stage.Patients with vascular endothelial growth factor-C-positive and/or cyclooxygenase-2-positive tumors had a significant shorter survival time than those with negative tumors did.However,in a multivariate analysis,only cyclooxygenase-2 expression was recognized as an independent prognostic factor(P = 0.0412;relative risk ratio,3.067;95 percent confidence interval,1.046-8.994).CONCLUSIONS:These data show that in human colorectal carcinoma,vascular endothelial growth factor-C and cyclooxygenase-2 are coexpressed and significantly associated with lymph node metastasis and prognosis. | Soumaoro L.T. Uetake H. Takagi Y. 廖新华 | 2006 | 世界核心医学期刊文摘(胃肠病学分册)2006,2,9: | 2 |
| 5 | Selected fruits reduce azoxymethane (AOM)-induced aberrant crypt foci (ACF) in Fisher 344 male rats显示文摘 | J. Boateng M. Verghese L. Shackelford L.T. Walker J. Khatiwada S. Ogutu D.S. Williams J. Jones M. Guyton D. Asiamah F. Henderson L. Grant M. DeBruce A. Johnson S. Washington C.B. Chawan | 2006 | Food and Chemical Toxicology2006,,5: | 2 |
| 6 | Improvement of the antioxidant activity of Chinese traditional fermented okara (Meitauza) using Bacillus subtilis B2显示文摘 | Y.P. Zhu J.F. Fan Y.Q. Cheng L.T. Li | 2007 | Food Control2007,,7: | 2 |
| 7 | Slope stability analysis using the limit equilibrium method and two finite element methods显示文摘 | S.Y. Liu L.T. Shao H.J. Li | 2014 | Computers and Geotechnics2014,,: | 2 |
| 8 | 流域管理可持续性指标研究显示文摘为满足流域管理可持续性方面的要求,建立并采用流域可持续发展指标是非常重要的。从社会、环境、经济和体制4个方面研究了流域管理可持续性指标的选用,并进行了详细说明。以巴西瓜纳巴拉湾流域为例,介绍了这种指标的选择和应用效果以及存在的问题。 | L.T.吉马良斯 孙远 车友宜 | 2009 | 水利水电快报2009,30,2: | 2 |
| 9 | Neuroprotective Effect of Intermittent Hypoxia on Iron-Induced Oxidative Injury in Rat Brain显示文摘 | Anya M.Y. Lin C.F. Chen L.T. Ho | 2002 | Experimental Neurology2002,,2: | 1 |
| 10 | Hydroperoxides in polyacrylonitrile and their role in carbon-fibre formation显示文摘 | L.T. Memetea N.C. Billingham E.T.H. Then | 1995 | Polymer Degradation and Stability1995,,2: | 1 |
| 11 | Kinetic interactions of dopamine and dobutamine with human catechol-o-methyltransferase and monoamine oxidase in vitro显示文摘 | M. Yan L.T. Webater J.L. Blumer | | 0,,: | 1 |
| 12 | Survival and reproduction of Laricobius nigrinus Fender (Coleoptera: Derodontidae), a predator of hemlock woolly adelgid, Adelges tsugae Annand (Homoptera: Adelgidae) in field cages显示文摘 | A.B. Lamb S.M. Salom L.T. Kok | 2004 | Biological Control2004,,2: | 1 |
| 13 | 番茄突变体再生植株抗晚疫病田间鉴定及抗病遗传规律显示文摘以番茄栽培品种为基础,开展用细胞育种方法筛选抗晚疫病突变体及抗晚疫病性状遗传规律的研究是培育抗晚疫病番茄优良品种行之有效的方法.而所获得的突变体再生植株的田间抗病性及其遗传力又是获得抗病品种的关键.同时,番茄抗晚疫病突变体的选择过程又是开展抗病生理生化机制研究的基础,因此具有重要的理论和实际意义. | 张喜春 Lutova L.A. 韩振海 Khodjaiova L.T. | 2001 | 植物保护学报2001,28,3: | 1 |
| 14 | Efficacy of Nisin in Treatment of Clinical Mastitis in Lactating Dairy Cows显示文摘 | L.T. Cao J.Q. Wu F. Xie S.H. Hu Y. Mo | 2007 | Journal of Dairy Science2007,,8: | 1 |
| 15 | In situ soil nitrogen mineralisation in a Scots pine ( Pinus sylvestris L.) stand: effects of increased nitrogen input显示文摘 | L.S. Vestgarden L.T. Selle A.O. Stuanes | 2002 | Forest Ecology and Management2002,,1: | 1 |
| 16 | STOICHIOMETRIC AND OFF STOICHIOMETRIC ALLOYING IN Ti 5Si 3 BY Nb OR Cr ADDITION显示文摘Titanium silicide Ti 5Si 3 whose melting temperature is 2 130 ℃ bears the potential for very high temperature application. Results on Nb or Cr addition to this compound with emphasis on its alloying behaviour were reported. Previous theoretical calculation shows that substitution of Ti by Nb or Cr atoms in Ti 5Si 3 crystal will enhance the bonding between atoms. By experiment, two means of alloying were considered: stoichiometric and off stoichiometric alloying. Stoichiometric alloying in Ti 5Si 3 results in compounds consisting of single Ti 5Si 3 phase while off stoichiometric alloying yields hypereutectic microstructure with Ti 5Si 3 being the primary phase. The Ti 5Si 3 phase in both cases dissolves certain amount of Nb or Cr alloying element and its composition agrees with the stoichiometric composition of (Ti,Nb) 5Si 3 or (Ti,Cr) 5Si 3. The moduli of the stoichiometric alloys increase with alloying element addition, indicating an enhancement in Ti 5Si 3 crystal. | L.T. Zhang and J.S. Wu Open Lab of State Education Commission for High Temperature Materials and Testing, Shanghai Jiao Tong University, Shanghai 200030, China | 1999 | 中国有色金属学会会刊:英文版1999,9,S1: | 1 |
| 17 | Dynamic recrystallization induced by plastic deformation at high strain rate in a Monel alloy显示文摘 | Q. Li Y.B. Xu Z.H. Lai L.T. Shen Y.L. Bai | 2000 | Materials Science & Engineering A2000,,1: | 1 |
| 18 | Formation, microstructure and development of the localized shear deformation in low-carbon steels显示文摘 | Y.B. Xu Y.L. Bai Q. Xue L.T. Shen | 1996 | Acta Materialia1996,,5: | 1 |
| 19 | Analysis on fatigue property of microshot peened railway axle steel显示文摘 | J.W. Zhang L.T. Lu K. Shiozawa X.L. Shen H.F. Yi W.H. Zhang | 2010 | Materials Science & Engineering A2010,,3: | 1 |
| 20 | Age-related changes in Arc transcription and DNA methylation within the hippocampus显示文摘 | M.R. Penner T.L. Roth M.K. Chawla L.T. Hoang E.D. Roth F.D. Lubin J.D. Sweatt P.F. Worley C.A. Barnes | 2010 | Neurobiology of Aging2010,,12: | 1 |