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Search Results: 1 - 10 of 4200 matches for " 管丽莉 "
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稀土元素对小球藻生长的影响
胡勤海,丽莉,叶兆杰
环境科学 , 1996,
Abstract: 研究稀土元素镧(La)、铈(Ce)、镨(Pr)、钕(Nd)及其混合物对蛋白核小球藻(Chlorellapyrenoides)生长的影响。结果表明,低浓度(2mg/L)稀土元素对小球藻生长影响不大;随处理浓度的提高(10-200mg/L),稀土元素对小球藻生长产生明显的抑制作用。各元素对小球藻的毒性顺序(按EC50计)依次为:Nd>Ce>Pr>La>混合稀土,但毒性差异很小。
Effects of Rare-Earth Elements on Growth and Reproduction of Chlorella pyrenoides
稀土元素对小球藻生长的影响

Hu Qinhai,
胡勤海
,丽莉,叶兆杰

环境科学 , 1996,
Abstract: It was studied that effects of rare-earth elements (La,Ce, Pr, Nd and their mixture) on growth and reproduction of Chlorella pyrenoides. The results showed that effects of rare-earth elements on growth and reproduction of Chlorella pyrenoides were not apparent under lower concentration (2mg/L), but it was inhibited as the concentration increased; and the toxicity (EC50,96 h.) of rareearth elements on Chlorella pyreaoides was insequence as:Nd>Ce>Pr>La>mixture of them, but little difference.
Isolation, identification and characteristics of ammonia-oxidation bacteria from Anammox reactor
Anammox反应器中氨氧化菌的分离鉴定及特性研究

HU Bao-Lan,ZHENG Ping,GUAN Li-li,
胡宝兰
,郑平,丽莉

浙江大学学报(农业与生命科学版) , 2001,
Abstract: 6 strains of ammonia-oxidation bacteria were isolated from an Anammox reactor, and the biological characteristics of strain N1 were studied. The results showed that strain N1 had the ability to oxidize ammonium anaerobically.
基于Matlab的状态反馈预测控制仿真软件设计与实现
Design and Realization of State Feedback Predictive Control Simulation Software Based on Matlab
 [PDF]


Dynamical Systems and Control (DSC) , 2013, DOI: 10.12677/DSC.2013.24012
Abstract:
本文首先阐述了状态反馈预测控制(State Feedback Predictive Control, SFPC)算法的基本原理和特点,结合matlab GUI人机界面接口技术,设计开发了状态反馈预测控制仿真软件,并且以一阶系统和二阶系统为例,进行状态反馈预测控制算法仿真分析,结果表明,该预测控制算法对于非线性系统的静态和动态性能具有快速响应性、稳态误差小以及鲁棒性好等良好控制效果。
This article first introduces the basic principle and characteristics of the State Feedback Predictive Control (SFPC) algorithm. Combined with matlab GUI interface technology, the State Feedback Predictive Control simulation software is designed. And with first-order system and second-order system, it shows State Feedback Predictive Control algorithm simulation analysis. The results show that the Predictive Control algorithm for nonlinear system static and dynamic performance has got fast response resistance, smaller steady state error and good robustness control effect.
Nd3+∶GdAl3(BO3)4晶体的光谱性质和强度参数
丽莉,王继扬,魏景谦,潘恒福,庆才,胡晓波,刘耀岗,王长青,Y.T.Chow
科学通报 , 1998,
Abstract: 报道了NdxGd1-xAl3(BO3)4(简称为NGAB)晶体的光学性质.测量了NGAB晶体的折射率,室温吸收谱及室温荧光谱.根据J-O理论计算了NGAB晶体的振子强度,拟合参数Ωλ(λ=2,4,6)分别为Ω2=1805×10-20,Ω4=1815×10-20,Ω6=3793×10-20(RMS=14×10-7).计算了NGAB晶体的光谱参数,其中τtot=377.526μs,βc(4F3/2→4F11/2)=0.523.
沈阳市女性性服务者艾滋病预防干预效果评价
王晓丽,谷渊,王路,,谷晶,丽莉,李韫,蔡丽姝,付敏,马宁
中国公共卫生 , 2008, DOI: 10.11847/zgggws2008-24-06-52
Abstract: ?目前,我国的艾滋病(AIDS)流行在总体上呈低流行状态,但在局部地区及特定人群呈高流行,并正从高危人群向一般人群扩散(1)。沈阳市人类免疫缺陷病毒(HIV)感染者和AIDS患者主要分布在沈阳市市内5区,流行趋势从静脉吸毒为主转向性途径蔓延扩散,经性接触感染是沈阳市HIV传播的主要途径。为有效控制艾滋病经性传播,2006年7月沈阳市开始实施全球基金第五轮艾滋病项目,针对女性性服务者(CSW)、男男性接触者、流动人群进行行为干预效果评估,为及时调整有效的艾滋病预防控制措施提供科学依据。
二次正交旋转组合设计法优化蛇床子素羟丙基-β-环糊精包合工艺
王锐,丽莉,谢国梁,杨婧,刘焱南,王艳宏,李伟男,庆霞,李永吉
中国中医药信息杂志 , 2015, DOI: 10.3969/j.issn.1005-5304.2015.02.023
Abstract: 目的确定蛇床子素羟丙基-β-环糊精包合工艺。方法采用不饱和水溶液-冷冻干燥法制备包合物,以二次正交旋转组合设计法设计羟丙基-β-环糊精包合工艺,采用高效液相色谱法测定包封率。结果确定最佳包合工艺为:羟丙基-β-环糊精与药物比例为4.5∶1,电动搅拌机35℃,恒温水浴搅拌210min,进行包封。结论所确定的制备工艺合理可行,具有良好的开发应用前景。
Optimal Positive Solutions of a Nonlinear Fourth Order Periodic Boundary Value Problem
非线性四阶周期边值问题的最优正解

丽莉
数学物理学报(A辑) , 2009,
Abstract: The fourth order periodic boundary value problem u(4)-m4u+F(t, u(τ(t)))=0, 0(i)(0)=u(i)(2π), i=0,1, 2, 3, is studied by using the fixed point theorem in cones, where F:0, 2π]×R+→ R+ and τ: 0, 2τi]→0, 2π] are continuous and 0-7.
中国社会经济系统分析研究会人口专业委员会成立
丽莉
期刊检索-中国人口科学 , 1992,
Abstract: <正>1992年4月4日,中国科学院、中国社会科学院、国家计划生育委员会、中国老龄科学研究中心及大专院校人口所等单位的中国人口学者,专家,在航空航天部710所举行了人口专业委员会成立大会。人口专业委员会是隶属中国社会经济系统分析研究会的专业学术团体,专门研究人口理论和人口政策。宗旨是:以马克思主义、毛泽东思想为指导,
浅议地勘行业新格局与矿业市场
丽莉
地质与勘探 , 2001,
Abstract: 公益性地质工作和商业性地质工作是我国地质工作相辅相成、缺一不可的两个组成部分。从1998年政府机构改革开始,地勘队伍逐步属地化和企业化,公益性和商业性地质工作分制运行,矿业权制度初步建立,矿业市场已具雏形,矿产勘查风险体系正在逐步建立,形成了目前的矿产勘查新格局。
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