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一株凝结芽孢杆菌产生糖脂的工艺研究

微生物学通报 2001年第4期28卷 12-15页

作者：郑喜群刘晓兰张鹭马微齐齐哈尔大学生命科学与工程学院齐齐哈尔161006

对分离出的一株凝结芽孢杆菌生产糖脂的摇瓶发酵工艺进行了优化和 1 0L罐发酵实验。适宜发酵条件为 :培养基由 6 %豆油、 3 5g/LNaNO3、 0 75g/L酵母膏以及一定量的无机盐组成 ,发酵温度 3 0℃ ,初始pH8 5 ,搅拌转数 1 5 0～ 2 4 0r/m... 详细信息

对分离出的一株凝结芽孢杆菌生产糖脂的摇瓶发酵工艺进行了优化和 1 0L罐发酵实验。适宜发酵条件为 :培养基由 6 %豆油、 3 5g/LNaNO3、 0 75g/L酵母膏以及一定量的无机盐组成 ,发酵温度 3 0℃ ,初始pH8 5 ,搅拌转数 1 5 0～ 2 4 0r/min ,发酵周期 96h。糖脂产量达到 7 0 73g/L。

关键词：糖脂生物表面活性剂发酵凝结芽孢杆菌工艺

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STUDY ON DYNAMIC PROPERTIES OF A CONCRETE-FILLED STEEL TUBULAR ARCH BRIDGE

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STUDY ON DYNAMIC PROPERTIES OF A CONCRETE-FILLED STEEL TUBUL...

The Third International Conference on Dynamics, Vibration and Control

作者： D.Jiang~1 q.G.Fei~(1 2 *) and X.L.Han~1 1 Department of Engineering Mechanics School of Civil Engineering Southeast University Nanjing 210096 China 2 Ministery Education key Laboratory of Concrete and Pre-stressed Concreter Structures Nanjing 210096 China

＜正＞Rapid progresses have been made in design and erection technologies of concrete-filled steel tubular arch bridge in recent ***,the research on dynamic properties of this type of bridge is far from mature. With the increasing span of concrete-filled steel tubular arch bridge,dynamic properties are becoming essentially important for the analysis of seismic and wind ***,dynamic properties could be valuable information for structural health monitoring.

关键词： arch bridge concrete-filled steel tubular dynamic testing sensitivity analysis model updating

多参数MR成像全肿瘤直方图分析三阴性乳腺癌与其他亚型的鉴别

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国际医学放射学杂志 2019年第4期 496-496页

作者：吴越 T.W.Xie q.F.Zhao C.X.Fu q.M.Bai X.Y.Zhou L.H.Li Department of Radiology Fudan University Shanghai Cancer Center

摘要目的利用多参数MR成像图谱和全肿瘤直方图分析三阴性(TN)乳腺癌与其他分子亚型鉴别的影像学生物标志。方法本回顾性研究包括134例浸润性导管癌病人。从

关键词：三阴性乳腺癌直方图分析 MR

Steady-state Simulation and Experimental Investigation on Thermal Performance of Air Source Heat Pump Using Refrigerant Mixture

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Steady-state Simulation and Experimental Investigation on Th...

2008国际低温与制冷大会

作者： Liu L H~* Chen G M~(**) Wang q~(**) Hong F~(**) Chen B~(**) * Department of Building Environment and Equipment Engineering Zhejiang Science and Technology University Hangzhou 310033 P.R.China ** Institute of Refrigeration and Cryogenics Zhejiang University Hangzhou 310027 P.R.China

＜正＞This paper reports a steady-state simulation model of air source heat pump system using refrigerant *** system is composed of a rotary compressor,a capillary tube as throttling device,a co-axial heat exchanger as condenser,and a fin-tube heat exchanger as *** accordance with the laws of mass,momentum and energy conservation,the mathematical models of four components are *** simulation algorithm is also *** the comparison of the simulated and experimental results,the same trend with the change of working conditions can be *** proposed model seems to be reliable and could be used in analyzing the thermal performance of an air source heat pump system using mixed working fluid.

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Experiment of Cooling-film Flows in a Hot-fire Environment

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Experiment of Cooling-film Flows in a Hot-fire Environment

第六届国际流体力学会议

作者： M.q.Zhang 1 G.H.Yang 2 L.X.Zhou 2 L.Hong 2 Z.L.Zhang 2 1 Northwestern Polytechnical University Xi’an 710072 China 2 Xi’an Aerospace Propulsion Institute Xi’an 710100 China

Experimental and numerical investigations on a cooling liquid-film flow in a hot-fire environment within a model combustion chamber were carried out to characterize the flow and heat transfer phenomena and to provide insight into flowfield and guide the evolution of the cooling design.A model combustion chamber with optical windows was set up for shadowgraph imaging of the liquid *** simulations using a separate-phase VOF method of the liquid-film flow and the combustion of the gaseous oxygen and methane were conducted to characterize the cooling-film flow and heat transfer between the hot combustion products and the liquid film.

关键词： film-cooling liquid rocket engine numerical simulation optical diagnostics gas-liquid interface

Structural and Electrical Behaviors of Ag Films Deposited on Liquid Substrates

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Structural and Electrical Behaviors of Ag Films Deposited on...

1996年中国青年学者物理学讨论会

作者： G.X.Ye~(1,2) q.R.Zhang~2 H.L.Ge~2 C.M.Feng~2 1 Dept.of Phys.,Hangzhou University,Hangzhou 310028 2 Dept.of Phys.,Zhejiang University,Hangzhou 310027

＜正＞A new Ag rough film system,deposited on silicone oil surfaces by rf-magnetron sputtering method,has been *** system exhibits a chrysanthemum-like surface morphology and anomalous electrical behaviors.

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颅内小动脉瘤:CT血管成像的诊断准确性

国际医学放射学杂志 2018年第1期 105-105页

作者： Z.L.Yang q.q.Ni U.J.Schoepf C.N.De Cecco H.Lin T.M.Duguay 徐凯 Department of Medical Imaging Jinling HospitalMedical School of Nanjing University

摘要目的采用大样本队列研究并以DSA作为参考标准,评价CT血管成像(CTA)诊断5 mm及以下的动脉瘤的准确性。材料与方法本回顾性研究已获得当地伦理委员会批

关键词：动脉瘤敏感度 CT 血管成像

NMO和MS脑和脊髓不同的纵向变化模式与残障进展的关系

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国际医学放射学杂志 2018年第2期 236-236页

作者： Y.O.Liu Y.Y.Duan J.Huang Z.q.Ren Z.Liu H.q.Dong 张文杰 Department of Radiology Xuanwu Hospital Capital Medical University

摘要目的探究视神经脊髓炎(NMO)和多发性硬化(MS)病人脊髓和脑的纵向变化及其与残障进展的关系。方法选取28例NMO、22例MS和20名健康对照者(HC),均

关键词： NMO 纵向变化 MS

Simulation of the Thomson scattering process in laser plasmas

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Simulation of the Thomson scattering process in laser plasma...

2004年全国强场激光物理会议

作者： q. Z. Yu, J. Zhang, Y. T. Li, J.Zheng, F.Yan, X. Lu Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, P.O.Box 603, Beijing 100080, China

＜正＞We develop a post-processor for the Thomson scattering process coupled with a hydrocode. This processor can simulate the temporal development of the Thomson scattering process. With the simulated images, experim... 详细信息

关键词： Thomson scattering MEDUSA hydrocode simulated images