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| 1 | 小球藻两个品系在自养与异养条件下的生长、能荷与色素差异显示文摘Chlorella protothecoides中国品系(C品系)与美国品系(A品系)在自养培养基中生长正常。在高浓度葡萄糖、低浓度有机氮的异养生长条件下,C品系仍为绿色,细胞生长与繁殖缓慢,指数期生长速率降低,细胞内腺苷酸能荷值(AEC)下降,但细胞仍保留叶绿素;A品系细胞转变成乳黄色,细胞生长与繁殖加快,指数期生长速率是自养细胞的2倍,细胞内腺苷酸能荷值仍保持高水平,向异养条件转换后约24h,细胞内叶绿素基本消失,重新向自养条件转换后细胞内叶绿素又逐渐恢复。AEC值是判别微藻在异养条件下能量代谢与生理状态的良好指标。同一种小球藻不同品系间的上述差异可能与细胞内基因调控的差异相关联。 | 吴庆余 匡梅 Grant N.G. | 1992 | 植物生理学报(0257-4829)1992,18,3: | 11 |
| 2 | 刺激呈现率影响小鼠下丘神经元声反应特性显示文摘自由声场条件下,以强度为特征频率阈上5 dB SPL、时程为40 ms的短纯音为声刺激,记录了小鼠下丘神经元对不同呈现率(0.5~20 Hz)的声刺激反应.结果显示,随呈现率的增高,绝大多数神经元(87.3%,103/118)的冲动发放数单调下降,少数(12.7%,15/118)神经元的冲动发放数呈非单调变化,冲动发放数与刺激呈现率之间有显著相关性.即使在低范围内改变呈现率也能显著影响多数神经元的声反应特性,其临界呈现率及最大呈现率低于3.3 Hz的神经元分别超过70% (75.4%,89/118)和40% (44.9%,53/118).此外,提高刺激呈现率,部分神经元(17.8%,21/118)的发放模式发生改变,主要是由紧张型或相位爆发型向相位型转变.可见,下丘神经元声反应特性与声刺激呈现率密切相关. | 吴飞健 刘双喜 陈其才 Bibikov N.G. | 2005 | 华中师范大学学报(自然科学版)2005,39,4: | 4 |
| 3 | Coefficient of restitution for particles impacting on wet surfaces: An improved experimental approach显示文摘 | B. Cunger V. Salikov S. Heinrich S. Antonyuk V.S. Sutkar N.G. Deen J.A.M. Kuipers | 2016 | Particuology2016,14,2: | 4 |
| 4 | 一种新颖的可控负荷优化调度策略显示文摘文中提出一种智能电网环境下可控负荷优化调度的双层优化模型。上层是可控负荷聚合器的优化问题,其目标是通过优化调度3类可控负荷的方式最小化购电成本;下层是电网优化问题,该问题提供电网实时电价给上层优化问题。文中将电网优化问题的KKT条件作为可控负荷优化问题的均衡约束,双层优化问题转换为具有均衡约束的数学规划(Mathematical Program with Equilibrium Constraints,MPEC)问题来求解。算例仿真反映了提出的调度策略的基本特征。 | 谢俊 蔡美红 SIMON N.G. 周岩 | 2014 | 南京邮电大学学报(自然科学版)2014,34,5: | 4 |
| 5 | 世界露天采矿设备新进展显示文摘如今,由于大城镇附近的浅藏富矿床超采越少,各矿山公司被迫纷纷到地理位置差、工程地质与水文地质条件复杂的边远地区开采埋藏较深的矿床,废石量大、利来比增高。这些矿山的职工要生活在偏僻闭塞的地区,从而导致必须支付公平的较高工资和较高的基础设施投资。过去,各矿山公司采取规模经济的手段以求保住效益或者采用提高生产效率的办法来增加单位产量[1],现在都不一定行得通。所以,实现经济生产的唯一可行途径是在露天开采各道工序中开发应用高科技方法[2]。 | T.阿特金森 S.E.诶尔-阿尔菲 N.G.特里佐波洛斯 冀湘 | 1997 | 国外金属矿山1997,22,6: | 4 |
| 6 | The three processes of brittle crystalline rock creep显示文摘 | G.N. Boukharov M.W. Chanda N.G. Boukharov | 1995 | International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts1995,,4: | 3 |
| 7 | Borescopic particle image velocimetry in bubbling gas-solid fluidized beds显示文摘In this work, the borescopic particle image velocimetry (BPIV) technique was applied to a bubbling gas-solid fluidized bed, and the results were compared with published positron emission particle tracking (PEPT) measurement data. Before performing the experiments, the sensitivity of the BPIV results to the illumination power, light reflectivity of the particles, and location of the borescope was also investigated. The BPIV and PEPT results were in fair agreement;however, some discrepancies were observed.The difference between the two sets of results were mainly caused by the intrusiveness of BPIV, the fact that the local solids volume fraction was not accounted for in the BPIV analysis, and the intrinsic differences of these two methods. Therefore, measurement of the local solids volume fraction with the borescope is highly recommended for further development of the BPIV method, which will also enable measureme nt of the local solids mass fluxes in side dense gas-solid fluidized beds. | M. Banaei R. Dellaert N.G. Deen J.A.M. Kuipers M. van Sint Annaland | 2019 | Particuology2019,17,2: | 2 |
| 8 | Thermomechanical processing of Ti–5Al–5Mo–5V–3Cr显示文摘 | N.G. Jones R.J. Dashwood D. Dye M. Jackson | 2008 | Materials Science & Engineering A2008,,1: | 2 |
| 9 | 社会主义共同体的价值问题显示文摘 | N.G.皮尔逊文 杨日鹏 | 2009 | 当代世界社会主义问题2009,,1: | 2 |
| 10 | 基于卷筒纸胶印的印品在线缺陷检测系统显示文摘本文详细介绍了一种视觉系统,该系统可以实现对卷筒纸胶印过程中产生的印品缺陷进行检测和定位。具体来说,该系统能够对高速卷筒纸印刷进行实时监控,并且可在印刷过程中出现任何影响印品质量的故障(如结构缺陷、色彩偏差、漏字、墨点、墨杠等)时向操作人员发出警报。本文还介绍了机器视觉系统的硬件部分和用于彩色图像扫描及印品缺陷检测定位的图像处理算法。从本质上讲,该系统采用高速扫描算法检测图像的边缘和边界,利用线性和非线性的滤波器对动态大小、阈值和转换信息做进一步的分析。除了在实验室内进行实验以外,还建立了系统模型,系统模型可应用在卷筒纸印刷中,在真实条件下对模型的功能进行评价。将该系统安装在凹印机上进行实验,结果表明该机器视觉系统同样可以成功地对缺陷进行监控和检测。 | N.G. Shankar N. Ravi Z.W. Zhong | 2009 | 中国印刷与包装研究2009,1,1: | 2 |
| 11 | Ecology of Coarse Woody Debris in Temperate Ecosystems显示文摘 | M.E. HARMON J.F. FRANKLIN F.J. SWANSON P. SOLLINS S.V. GREGORY J.D. LATTIN N.H. ANDERSON S.P. CLINE N.G. AUMEN J.R. SEDELL G.W. LIENKAEMPER K. CROMACK K.W. CUMMINS | 2004 | Advances in Ecological Research2004,,: | 2 |
| 12 | Development and Control of a ‘Soft-Actuated’ Exoskeleton for Use in Physiotherapy and Training显示文摘 | N.G. Tsagarakis Darwin G. Caldwell | 2003 | Autonomous Robots2003,,1: | 1 |
| 13 | Effects of microgravity on muscle and cerebral cortex: A suggested interaction显示文摘 | F. D’Amelio R.A. Fox L.C. Wu N.G. Daunton M.L. Corcoran | 1998 | Advances in Space Research1998,,2: | 1 |
| 14 | Reaction, transformation and delamination of samarium zirconate thermal barrier coatings显示文摘 | Hengbei Zhao Matthew R. Begley Arthur Heuer Reza Sharghi-Moshtaghin Haydn N.G. Wadley | 2011 | Surface & Coatings Technology2011,,19: | 1 |
| 15 | The Relationship between the Microstructure and Abrasive Resistance of a Hardfacing Alloy in the Fe-Cr-C-Nb-V System显示文摘 | E.O. Correa N.G. Alcantara D.G. Tecco R.V. Kumar | 2007 | Metallurgical and Materials Transactions A2007,,8: | 1 |
| 16 | Nonlinear Contrast Imaging with an Array-Based Micro-Ultrasound System显示文摘 | A. Needles M. Arditi N.G. Rognin J. Mehi T. Coulthard C. Bilan-Tracey E. Gaud P. Frinking D. Hirson F.S. Foster | 2010 | Ultrasound in Medicine & Biology2010,,12: | 1 |
| 17 | A quasi-3D analysis of the thermal performance of a flat heat pipe显示文摘 | G. Carbajal C.B. Sobhan G.P. “Bud” Peterson D.T. Queheillalt Haydn N.G. Wadley | 2007 | International Journal of Heat and Mass Transfer2007,,21: | 1 |
| 18 | A multifunctional heat pipe sandwich panel structure显示文摘 | Douglas T. Queheillalt Gerardo Carbajal G.P. Peterson Haydn N.G. Wadley | 2007 | International Journal of Heat and Mass Transfer2007,,1: | 1 |
| 19 | Mechanical and microstructural investigation of friction spot welded AA6181-T4 aluminium alloy显示文摘 | T. Rosendo B. Parra M.A.D. Tier A.A.M. da Silva J.F. dos Santos T.R. Strohaecker N.G. Alcantara | 2010 | Materials and Design2010,,3: | 1 |
| 20 | Gap junction protein connexin-43 interacts directly with microtubules显示文摘 | Ben N.G. Giepmans Ingrid Verlaan Trudi Hengeveld Hans Janssen Jero Calafat Matthias M. Falk Wouter H. Moolenaar | 2001 | Current Biology2001,,17: | 1 |