山 东 大 学 学 报
(自然科学版)
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目 次
控制能量受限下随机控制系统精确能控性....................刘雅增 彭实戈(361)一阶混合型积分—微分方程的可解性................................杨志林(367)抛物型方程初边值问题的变网格有限元方法........................... 孙同军(373)Banach空间脉冲
Volterra型线性积分方程的解..........................戚仕硕(381)有计算误差及测量误差下的频谱有限函数的外推................ 黎伯堂 杨德运(387)
Bessel级数在边界解析点处的性态................... 木乐华 AL-oushoush Nizar(393)Halin
图的圈着色............................................朱美琳 刘家壮(398)区间图上的并行算法设计..................................... 马 军 刘振法(404)
电子收款机软件方案设计方法.................................... ...郑永清(413)
用双电流法测量双晶体管的结温
…
… … … … … … … … …杨志伟 杜文华 杨列勇 苗庆海 张德骏 张兴华(417)超高能源初宇宙线成分分辨
...................冯存峰 孔繁敏 张学尧 何 瑁 戴志强 李金玉 张乃健(421)二阶PLL特性参量的一种新测试方法................................熊慎勋(427)多级编码的两种不同译码方法的性能比较......................袁东风 韩 冰(433)激光指向仪的光学设计.......................李宇飞 侯学元 孙渝明 徐士华(441)一种新型汽车前照灯参数全自动检测仪........戚焕筠 蒋本和 胡文斐 胡庆荣(445)
槲皮素-
TOPO(Tx-100)-SDBS荧光体系的研究应用.............................................朱荣秀 朱贵云 王若曦(450)甲基二氯硅烷与氯丙烯加成反应研究.................林吉茂 杨亲正 阚成友(456)
化学竞争反应对伴有吸附和脱附步骤的电极过程的影响 .......................................马厚义 李桂秋 吴晓娟 陈慎豪(459)
微量量热法筛选促菌特效营养药的研究
.....................谢新记 王明刚 茹淼焱 刘爱祥 彭民苓 于秀芳 张洪林(468)
银杏叶黄酮组分的分离及抗氧化作用的研究
...........................................李 艳 徐誉泰 张可炜 张举仁(473)
Soja
亚属的数量分类学研究................................张可炜 郑亦津(479)生孢噬纤维细菌的分离纯化及鉴定....................齐 飞 张颖舒 高培基(484)
抗高浓度葡萄糖阻遏的纤维素酶高产菌的选育
....................................宋小炎 宋桂经 孙彩云 刘陶陶 韩 峰(488)
第34卷·卷终
J
ournal of Shandong University(
Natural Science Edition)Vol. 34 No. 4 Dec. 1999
CONTENTS
Exact Controllability of Stochastic Control Systems with Control Energy Constraint
……
… …… … …… … …… … …… … …… … …… … … Liu Yazeng, Peng Shige(361)The Solvability of Mixed Integro
differential Equations of First Order…
… …… … …… … …… … …… … …… … …… … …… … …… … …Yang Zhilin(367) A Fem with Moving Grid for Linear Parabolic Equation...............................Sun Tongjun(373) Solutions of Linear Impulsive Volterra Integral Equations in Banach Space … … …… … …… … …… … …… … …… … …… … …… … …… … …Qi Shishuo(381)The Extrapolation of Band
limited Functions with Measuring or Calculating Errors…
… …… … …… … …… … …… … …… … …… … … Li Botang,Yang Deyun(387) Behaviour of Bessel Series at an Analytic Point of the Boundary…
… …… … …… … …… … …… … …… … …… … Mu Lehua, AL-oushoush Nizar(393)The Cyclic Coloring of Halin Graphs…
… …… … …… … …Zhu Meilin, Liu Jiazhuang(398)Desinging Efficient Parallel Algorithms on Inteval Graphs
…
… …… … …… … …… … …… … …… … …… … Ma Jun, Liu Zhenfa(404)The Method of ECR Software Plan Design..........................................Zheng Yongqing(413)Measuring Junction Temperature of Bipolar Transistors by Double-Current Method… … …… Yang Zhiwei,Du Weihua,Yang Lieyong,Miao Qinghai,Zhang Dejun,Zhang Xinghua(417)Identification of Primary Cosmic ray Component at the Ultrahigh Energy Region… … …… … …… … … Feng Cunfeng,Kong Fanmin,Zhang Xueyao,He Mao,…
… …… … …… … …… … …… … …… … … Dai Zhiqiang,Li Jinyu,Zhang Naijian(421)A New Measuring Method of Characteristic Parameters of Second Order PLL
…
… …… … …… … …… … …… … …… … …… … …… … …… …Xiong Shenxun(427)The Performance Comparison of Multilevel Coding Using Two Different
Decoding Methods…
… …… … …… … …… … …… … Yuan Dongfeng,Han Bing(433)Optical Design of Laser Indicator
.............................................................Li Yufei,Hou Xueyuan,Sun Yuming,Xu Shihua(441) A New all Auto
detector for Automobile Headlamp Parameters........................................................Qi Huanjun,Jiang Benhe,Hu Wenfei,Hu Qingrong(445)
Studied on the Fluorescence of Y(
Ⅲ)-QuercetinTopo(TX-100)-SDBS System ...........................................................................Zhu Rongxiu,Zhu Guiyun,Wang Ruoxi(450) Addition Reaction of Methyldichlorosilane with Allyl Chloride.........................................................................Lin Jimao,Yang Qinzheng,Kan Chengyou(456) The Effect of Chemical Competitive Reaction on the Electrode Process Involving Adsorption
and Desorption…
… …… … …… … …… … …… …Ma Houyi,Li Guiqiu,Wu Xiaojuan,Chen Shenhao(459)Study of the Screening Nutrent Drug and Determination of Optimum Concentration of Nutrient
Drug Using Microcalorimetric Method…
… …… … …… … …… … … Xie Xinji,Wang Minggang,Ru Miaoyan,Liu Aixing,…
… …… … …… … …… … …… … …… Peng Minling,Yu Xiufang,Zhang Honglin(468)Study on the Anti oxidative Effect of Different Constituents Isolated from the Tota
Flavonoids of Ginkgo bilobal.
..................................................................Li Yan,Xu Yutai,Zhang Kewei,Zhang Juren(473)
A Study on Numerical Taxonomy of Soja
...........................Zhang Kewei,Zheng Yijin(479)Isolation and Identification of a Cellulosedegradating Strain from Soil....................................................................................Qi Fei,Zhang Yingshu,Gao Peiji(484)
Preparation of a Mutant Kesistant to Glucose Repression
................................Song Xiaoyan, Song Guijing, Sun Caiyun, Liu Taotao, Han Feng(488)
End of the Volume 34
控制能量受限下随机控制系统精确能控性
刘雅增 彭实戈
(山东大学数学与系统科学学院,济南 250100)
摘 要
讨论了控制能量受限下随机控制系统精确能控性问题.从倒向随机微分方程观点出发,利用矩量论方法得到了判定控制能量受限下随机精确能控性充要条件,并得到容易判定的充分条件和必要条件.关键词
随机控制系统;控制受限;精确能控性;倒向随机微分方程中图分类号
O211 O175 EXACT CONTROLLABILITY OF STOCHASTIC CONTROL SYSTEMS WITH CONTROL ENERGY CONSTRAINT
Liu Yazeng, Peng Shige
(School of Mathematics and System Science Shandong Univ., Jinan 250100)ABSTRACT
Exact controllability of stochastic control system with control energy constraint is concerned. From the viewpoint of backward stochastic differential equations, we obtain the sufficient and necessary condition that determines linear stochastic systems to be exactly controllable with control constraint by using the method of moment theory. We also get the sufficient condition and necessary condition that are easy to detect.
Key Words: Stochastic control system; limited control;exact controllability; backward stochastic differential equation
一阶混合型积分—微分方程的可解性
杨志林
(山东大学数学系,济南 250100)
摘 要 利用先验估计的技巧,得到了一阶混合型积分—微分方程解的存在性、唯一性,还得到了正确的存在性.
关键词 积分—微分方程;不动点;谱半径;拓扑度
中图分类号
O175
THE SOLVABILITY OF MIXED INTEGR
DIFFERENTIAL EQUATIONS OF FIRST ORDER
Yang Zhilin
(Dept. of Math. , Shandong Univ., Jinan 250100)
ABSTRACT
The technique of apriori estimate is applied to obtain the existence and uniqueness results for the mixed integro–differential equations of first order. The existence results for positive solutions are furthermore obtained.Key words integro-differential equation; fixed point; spectral radius; topological degree
抛物型方程初边值问题的变网格有限元方法
孙同军
(山东大学数学系,济南 250100)
摘 要
对线性抛物问题提出了一种全离散变网格计算格式,不需要对前一层值进行
投影修正,通过误差分析证明了最优的
模和能量模误差估计.
关键词 抛物型方程;变网格;有限元中图分类号
O241A FEM WITH MOVING GRID FOR LINEARPARABOLIC EQUATION
Sun Tongjun
(
Dept. of Math.., Shandong Univ., Jinan 250100)
ABSTRACT
A full-discretization FEM with moving grid for linear parabolic equation is presented, in which the finite element solution at the last time is not projected on the next time finite element space usingKey Words parabolic equation; moving mesh; finite element; error estimate
Banach
空间脉冲Volterra型线性积分方程的解戚仕硕(山东大学数学系,济南 250100)
摘 要 采用逐次迭代方法讨论
Banach空间中脉冲型线性Volterra积分方程,获得了其解的存在唯一性结果,最后给出一个具体的例子.关键词 脉冲积分方程;逐次迭代方法;存在唯一性
中图分类号
O175SOLUTIONS OF LINEAR IMPULSIVE VOLTERRA
INTEGRAL EQUATIONS IN BANACH SPACE
Qi Shishuo
(
Dept.of Math., Shandong Univ.,Jinan 250100)
ABSTRACT
Linear impulsive Volterra integral equations in a Banach space are investigated by means of the iterative technique and the theorem on the existenceand uniqueness of their solutions is obtained. At last, an example is given.
Key Words
impulsive integral equations; iterative technique; existence and uniqueness_
有计算误差及测量误差下的频谱有限函数的外推
黎伯堂
(山东大学数学院,济南 250100)杨德运
(泰安师专数学与计算机科学系,泰安 271000)
摘 要 给出了一个在具有计算误差或者测量误差下频谱有限函数的外推方法,保证在适当的条件限制下,计算误差或测量误差不影响外推的稳定性.关键词 正规簇;整函数;频谱有限函数
中图分类号
O174.4 O178THE EXTRAPOLATION OF BAND-LIMITED FUNCTIONS
WITH MEASURING OR CALCULATIONG ERRORS
Li Botang
(Dept. of Math., Shandong Univ., Jinan 250100)
Yang Deyun(Dept. of Math., Taian teachers college Taian 271000)
ABSTRACT
The extrapolation of band-limited functions is an ill-posed problem. Small errors could bring large changes in extrapolation. A method for the extrapolation is presented which can be used for the case of existing errors caused by measuring or calculating.
Key words normal family; entire function; band-limited function
Bessel
级数在边界解析点处的性态木乐华
AL-oushoush Nizar(山东大学数学系,济南 250100)
摘 要 给出圆域中贝塞尔级数的部分和偏差的一个新的表达式,进而讨论了贝塞尔级数在边界解析点处的性态.
关键词
Bessel级数;christoffel公式;解析性中图分类号
O174BEHAVIOUR OF BESSEL SERIES AT AN ANALYTIC POINT
OF THE BOUNDARY
Mu Lehua , AL-oushoush Nizar
(Dept. of Math., Shandong Univ., Jinan 250100)
ABSTRACT
Let
be the disc ![]()
If
is analytic in
and continuous on
, then we say
. The series
![]()
is called the Bessel series expansion of
on
, its partial sums
are denoted by ![]()
Theorem Let
be a
non-negative integer. If
and
is analytic at a point
then
.
If we only know
.
Here we can see the influence of
being analytic at
.
Key words Bessel series; Christoffel formula; analyticity
Halin
图的圈着色朱美琳 刘家壮
(山东大学数学系,济南 250100)
摘 要 对3- 连通图Halin图,确定了其圈色数,并得到较好结果.
关键词 图着色;k-圈着色数;Halin图
中图分类号O157.5
THE CYCLIC COLORING OF HALIN GRAPHS
Zhu Meilin, Liu Jiazhuang
(Dept. of
Math., Shandong Univ., Jinan 250100)
ABSTRACT
A coloring of the vertices if a plane graph is k- cyclic of whenever two vertices lie in the boundary of the same face of the size at most k, their colors are different.We denote by the k- cyclic chromatic number of a graph G, i. e. The minimum number of colors needed to color G, k- cyclically. This paper gives the conclusion of Halin graphs.
Key word coloring of a graph;
k- cyclic chromatic number;Halin graph
区间图上的并行算法设计
马 军
(山东大学计算机系,济南 250100)
刘振法
(中国电子进出口山东公司,济南 250002)
摘 要 对区间图上的图问题并行求解,给出两种算法设计方法.利用这
两种方法,对最小团覆盖、最大团、最大独立集、最小支配集、
Hamiltonian回路、最佳道路覆盖、最小带宽和Steiner树的计算问题,在EREW PRAM模型上给出O(logn)时间,使用O(n) 处理器的高效并行算法.关键词
NP-难解;区间图;并行算法中图分类号
TP316DESINGING EFFICIENT PARALLEL ALGORITHMS
ON INTEVAL GRAPHS
Ma Jun
(Dept. of Computer Science, Shandong Univ., Jinan 250100) Liu Zhenfa
(China National Electronics Imp/Exp Shandong Company, jinan 250002)
ABSTRACT
Two ways in designing efficient parallel algorithms for interval graphs are discussed. They are used to develop the efficient parallel algorithms for following problems:Minimum Clique Cover, Maximum Clique, Maximum Independent Set, Minimum Dominating Set, Hamiltonian Circuit, Optimal Path Cover,Bandwidth Minimization and Steiner Tree. All given algorithms run in O(logn) time with O(n) processors on a EREW PRAM.Some of the sequential versions improve the time complexity of the best known sequential algorithms.
Key words NP-Hard; interval graphs; parallel algorithms
电子收款机软件方案设计方法
郑永清
(山东大学计算机软件工程研究所,济南 250100)
摘 要 电子收款机是一种基于键盘控制并具有复杂键序的单片机系统,合理有效地描述出各种功能键的键序组合以及功能键在各种情况下的功能含义,是一个成功的电子收款机软件设计方案的重要组成部分.在本文中,我们介绍一种基于“键盘状态表”和“状态转移表”进行电子收款机软件设计方案描述的方法,这种方法已在我们进行的一种电子收款机软件方案设计过程中得到验证.
关键词 电子收款机;软件设计;设计方法
中图分类号
TB115THE METHOD OF ECR SOFTWARE PLAN DESIGN
Zheng Yiongqing
(Dept .of computer Science, Shandong Univ., Jinan 250100)
ABSTRACT
ECR is a kink of single chip minicomputer system based on keyboard control which has complex key serial.It is very important to describe combination of various function-keys and meanings of function key in various conditions reas
onably and effectively.In this paper, we presented a method about describing the design of ECR software based on ‘Keyboard status table’ and ‘Status convert table’. This method has been tested in our design scheme of ECR software.Key words ECR ; software plan design; method of design
用双电流法测量双极晶体管的结温
杨志伟 杜文华 苗庆海 张德骏 张兴华 杨列勇
(山东大学物理系,济南 250100)
摘 要 基于
Shockley方程提出用双电流法测量半导体器件的结温,并与传统的线性近似法进行对比,消除了由于不同器件热电性能的差异引入的误差,提高了结温测量精度.关键词 双电流法;ΔVBE法; 结温
中图分类号
TN322
MEASURING JUNCTION TEMPERATURE OF BIPOLARTRANSISTORS BY DOUBLE-CURRENT METHODYang Zhiwei, Du Weihua, Yang Lieyong, Miao Qinghai,
Zhang Dejun, Zhang Xinghua
(
Phys .Dept.of Shandong Univ. , Jinan 250100)
ABSTRACT
A technique—double current method,of measuring junction temperature of bipolar transistors was carried out based on the Shockley Equation,and also was compared with the traditional approximate linear method.Error which was caused by difference of the forbiddenband width of individual devices,was reduced heavily by this technique.Key words double-current method;
ΔVBE method; junction temperature_
超高能原初宇宙线成分分辨
冯存峰 孔繁敏 张学尧 何 瑁 戴志强 李金玉 张乃健
(山东大学高能物理教研室,济南 250100)
摘 要 根据羊八井
AS+EC的实验条件,利用CORSIKA(版本5.60)程序进行了广延大气簇射的Monte Carlo模拟.通过分析模拟数据,提取与原初成分有关的特征量,并利用人工神经网络对模拟数据进行多参数分析,结果表明,约有85% 的1015~1017 eV 原初质子被羊八井AS+EC正确地挑选出来.关键词
Monte Carlo模拟; 人工神经网络; 原初宇宙线分辨中图分类号 O572
AT THE ULTRAHIGH ENERGY REGION
Feng Cunfeng, Kong Fanmin, Zhang Xueyao, He mao,
Dai Zhiqiang, Li Jinyu, Zhang Naijian
(Dept. of Phys.,Shandong Univ.,Jinan 250100)
A
BSTRACTBased on the observation condition of Yangbaijing experiment, a Monte Carlo simulation for extensive air shower has been done by use of CORSIKA (version 5.60) program. The characteristic parameters related to the primary composition are
obtained from the simulation results. It is shown that by using the artificial neural networks about 85% of the protons can be separatedKey words Monte Carlo simulation; artificial neural networks; identification of primary cosmic-ray component
二阶
PLL特性参量的一种新测试方法熊慎勋
(山东大学电子工程系,济南250100)
摘 要 通常测量二阶锁相环(
PLL)的自然角频ωn和阻尼系数ζ时,需要分别测量环路直流总增益和滤波器的时间常数等有关参量,此方法繁琐且误差较大.本文讨论一种通过输入小频偏的调频信号,可以方便、且较准确地测出理想二阶PLL的ωn和ζ的实际值.该方法同样适用于非理想二阶环,以及由相位超前无源比例积分器构成的二阶环.关键词 锁相环;调频;自然角频ω
n;阻尼系数ζ中图分类号O441A NEW METHOD OF CHARACTERISTIC
PARAMETERS OF SECOND ORDER PLL
Xiong Shenxun
(Dept.of Electronic Engineering,Shandong Univ.,Jinan 250100)
ABSTRACT
Generally,evaluating Nature angle-frequency
ωn and damping coefficientζof second order PLL needs to measure it’s total gain and time constants of the filter in the PLL respectively.But in fact, there are more errors when these parameters are measured and it will take long time for us to do it, too.Using modulating frequency with small frequency deviation as inputing signal of the PLL, a short-cut method to measure ωn and ζ is discussed.By analysis,we see that the method also fits nonideal second order PLL and another PLL which consists of inactive proportion-integrator with phase lead. Key words phase locked loop; modulating frequency; nature angle-frequency
ωn; damping coefficientζ
多级编码的两种不同译码方法的性能比较
袁东风 韩 冰
(山东大学电子工程系, 济南 250100)
摘 要 以
AWGN信道为信道模型,在8-PSK调制方式下,对多级编码方案分别采用了多阶段译码和并行译码两种译码方法,对其性能进行了详细的比较.在计算机仿真的基础上,得出了针对多级编码方案的译码方法的一些有意义的结论.关键词 多级编码;多阶段译码;并行译码;
AWGN信道中图分类号
TN911THE PERFORMANCE COMPARISON OF MULTILEVEL
CODING USINGTWO DIFFERENT DECODING METHODS
Yuan Dongfeng, Han Bing
(Dept. of Electronie Engineering, Shandong Univ., Jinan 250100)
ABSTRACT
The performances of MLC
/MSD and MLC/PDL are compared carefully with 8-PSK modulation using AWGN channel model.Some significant conclusions based on the computersimulation results are obtained.Key words multilevel coding; multistage decoding; parallel decoding on levels; AWGN channel
激光指向仪的光学设计
李宇飞 侯学元 孙渝明 徐士华(山东大学光电学系,济南 250100)摘 要 以
He-Ne激光为例,利用高斯光束的成像理论计算了激光指向仪中光学元件的参数.计算值与实际值基本相符.关键词 激光指向仪;高斯光束;望远镜系统
中图分类号
TN249OPTICAL DESIGN OF LASER INDICATOR
Li Yufei, Hou Xueyuan, Sun Yuming, Xu Shihua
(Dept. of Optical ,Shandong Univ.,Jinan 250100)
ABSTRACT
The optical element parameters of laser indicator has been calculated according to the imaging theory of Gauss light beam,as an example of He-Ne laser,in this paper.The theoretical value tallies with the real value almost.Key words laser indicator; gauss light beam; telescope system
一种新型汽车前照灯参数全自动检测仪
戚焕筠 蒋本和 胡文斐 胡庆荣 (山东大学红外遥感研究室, 济南 250100)
摘 要 介绍一种新型的以
CCD面阵器件作为探测器的汽车前照灯参数全自动检测仪.利用计算机数字图像处理技术,对远光灯的对准,近光灯的光型检测和照度测量分别进行了理论和实践探讨.关键词
CCD面阵器件;前照灯;光型;照度中图分类号
H741.4A NEW ALL AUTO
DETECTOR FOR AUTOMOBILE HEADLAMP PARAMETERS
Qi Huanjun, Jiang Benhe, Hu Wenfei, Hu Qingrong
(IR and Remote Sensing Lab., Shandong Univ., Jinan 250100)
ABSTRACT
A new all-auto-measurement instrument for automobile headlamp parameters, which used CCD plane arrays as detector was introduced. The computer digital image processing technology was used to approach the theories and experiments about the alignment of farreaching headlamp, light shape detection and illumination measurement of shortrange headlamp, respectively.
Key words CCD plane arrays detector; automobile headlamp; lightshape; illumination; alignment
Y-
槲皮素-TOPO(TX-100)-SDBS荧光体系的研究
朱荣秀 朱贵云
(山东大学化学学院, 济南 250100)王若曦
(山东省公安专科学校,济南 250014)
摘 要 研究发现
Y-槲皮素二元体系有较微弱的荧光,TOPO(TX-100)-SDBS试剂体系的引入使二元体系的荧光大幅度增强;研究了Y-槲皮素-TOPO(TX-100)-SDBS这一体系的影响因素和分析特性,并将这一体系应用于痕量Y(Ⅲ)的测定.结果表明,在最佳实验条件下,Y(Ⅲ)的可测定范围为0.1~10 μmol/L.关键词 钇;槲皮素;
TOPO;荧光分析;L*-L荧光中图分类号
O656STUDIED ON THE FLUORESCENCE OF
Y
(Ⅲ)-QUERCETIN-TOPO(TX-100)-SDBS SYSTEM
Zhu Rongxiu, Zhu Guiyun
(School of Chem. , Shandong Univ. , Jinan 250100)
Wang Ruoxi(College Shandong Police, Jinan 250014)
ABSTRACT
The study indicated that Y-quercetin binary system emitted a weak fluorescence and the fluorescence of binary system was greatly enhanced by TOPO (TX-100)-SDBS organic system. The system of Y-quercetin-TOPO (TX-100)-SDBS was studied in detail on the affecting factors and analytical characteristics.The systm was used for detecting trace amount of yttrium (
Ⅲ). Under the optimum conditions, the fluorescence intensity was a line function of the concentr-ation of Y(Ⅲ) in the range of 0.1~10μmol/L.The detection limit was 0.05μmol/L.Key words yttrium;quercetin; TOPO; fluorimetry; L*-
L luminescence
甲基二氯硅烷与氯丙稀加成反应研究
林吉茂 杨亲正 阚成友(山东大学化学学院, 济南 250100)
摘 要 研究5种助催化剂对甲基二氯硅烷与氯丙稀加成反应的影响.发现γ
-N,N二乙基氨丙基三乙氧基硅烷和三乙胺助催化效果较好,可大大地缩短反应诱导期,在2.5h内即可完成反应.关键词 甲基二氯硅烷;氯丙稀;加成反应中图分类号
O621ADDITION REACTION OF METHYLDICHLOROSILAN
EWITH ALLYL CHLORIDE
Lin Jimao, Yang Qinzheng, Kan Chengyou(Depat.of chem., Shandong Univ., Jinan 250100)
ABSTRACT
Effect of auxiliary catalysts on addition reaction of methyldichlorosilane with allylchloride was studied.
γ-N, N-Diethylaminopropyltriethoxysilane and triethylamine can shorten time in inducing reaction and complete reaction in 2.5 hours.Key words methyldichlorosilane; allylchloride; addition reaction
化学竞争反应对伴有吸附和脱附步骤
的电极过程的影响
马厚义 李桂秋1 吴晓娟2 陈慎豪
(山东大学化学系;1山东大学光电信息工程系;2山东大学电子工程系, 济南 250100)
摘 要 在线性条件下,推导了由化学吸附、电荷传递、化学脱附三步骤的电极过程在有(或没有)化学竞争反应条件下的电流密度和法拉第阻抗的表达式,分析了不同条件下化学竞争反应对主反应的影响,并使用等效电路对可能出现的阻抗结果进行了理论描述.
关键词 竞争反应;法拉第阻抗;等效电路;速控步骤
中图分类号
O646THE EFFECT OF CHEMICAL COMPETITIVE REACTION
ON THE ELECTRODE PROCESS INVOLVING ADSORPTION
AND DESORPTION
Ma Houyi, Li Guiqiu
1, Wu Xiaojuan2, Chen Shenhao(Dept. of Chemistry,
1Dept. of Photo -Electronic Information Engineering,2Deat. of Electronic Engineering, Shandong Univ, Jinan 250100)
ABSTRACT
The expressions of current density and the Faradaic Impedance for the three-step electrode processes involving chemical adsorption, charge transfer and desorption steps in the presence or absence of a chemical competitive reaction have been derived in terms of linear condition in this paper, by which the effect of the chemical competitive reaction on the main reaction was analyzed.A theoretical description about the complex plane display for the Faradaic impedance occurring probably was also carried out by using equivalent circuits.
Key words competitive reaction; Faradiac impedance; equivalent circuit; ratedetermining step
微量量热法筛选促菌特效营养药的研究
谢新记 王明刚 茹淼焱 刘爱祥 彭民苓
(山东大学化学学院,济南 250100)
于秀芳 张洪林
(曲阜师范大学化学系,曲阜 273165)
摘 要 用热活性检测仪测定了枸杞; 黄芪; 灵芝; 鹿茸对金黄色葡萄球菌促进作用的热功率—时间曲线;计算了不同浓度营养药物作用下的生长速率常数;根据生长速率常数和浓度的数据,确定了营养药物的最佳浓度.
关键词 微量量热法;促进作用;营养药物;最佳浓度
中图分类号
Q939
STUDY OF THE SCREENING NUTRENT DRU
G ANDDETERMINATION OF OPTIMUMCONCENTRATION
OF NUTRIENT DRUGUSING MICROCALORIMETRIC METHODXie Xinji, Wang Minggang, Ru Miaoyan, Liu Aixing, Peng Minling
(Dept.of chem., Shandong Univ., Jinan 250100)Yu Xiufang, Zhang Honglin
(Dept.of Chem., Qufu Normal Univ., Qufu 273165)
ABSTRACT
The power-time curves of the promoter action of Ganoderma lucidum, Astragalus, Lycium chineuse, Pilose antler.for the S.aureus have been determined using a thermal activity monitor.The growth rate constants at different concentration of nutrient drug have also been calculated. From k, c data, optimum concentration of nutrient drug also been established, it is very informative for the study of sifting nutrient drug.Key words microcalorimetry; promoter action
;nutrient drug;optimum concentration银杏叶黄酮组分的分离及抗氧化作用的研究
李 艳 徐誉泰 张可炜 张举仁
(山东大学生命科学学院,济南250100)
摘 要 用70% 乙醇回流提取和聚酰胺柱层析的方法得到银杏叶总黄酮,继而用硅胶薄板对总黄酮进行制备性分离,得到3个黄酮含量较高的组分Ⅰ、Ⅱ、Ⅲ.进一步研究发现,组分Ⅰ、Ⅱ、Ⅲ具有较强的抗氧化能力,可以明显地抑制紫外线引起的小鼠肝细胞线粒体过氧化脂质的形成,其中组分Ⅱ的效果最好,当浓度为10.54μ
g/ml时,抑制率可达60.3%.成分结构分析结果表明,组分Ⅱ是以槲皮素为甙元与葡萄糖、鼠李糖或这两者形成的双糖结合而成的黄酮甙类.关键词 银杏叶黄酮;薄层层离;HPLC;过氧化脂质
中图分类号
Q945STUDY ON THE ANTI OXIDATIVE EFFECT OF
DIFFERENT CONSTITUENTS ISOLATEDFROM THE
TOTAL FLAVONOIDS OF
GINKGO BILOBA L.
Li Yan,Xu Yutai,Zhang Kewei,Zhang Juren
(School of Life Sci., Shandong Univ., Jinan 250100)
ABSTRACT
The total flavonoids was extracted from the leaves of Ginkgo biloba L. by 75% alcohol,purified with polymide column chromatography and separated by TLC.Component Ⅰ、Ⅱ and Ⅲ containing most of the total flavonoids were obtained.Further study showed that flavonoids had a strong anti oxidation effect.They remarkably reduced the level of mitochondria lipid peroxide induced by UV-irradiation,and Component Ⅱwas the most effective.When its concentration was 10.54 μg/ml,the inhibitory rate of lipid peroxide reached 60.3 percent.The composition of component Ⅱ was analyzed.The results showed that it mainly consisted of two compounds,both of which were flavone glycosides with quercetin as the aglycon.Key words
Ginkgo biloba L.flavonoids; TLC; HPLC; lipid peroxide
soja亚属的数量分类学研究张可炜 郑亦津
(山东大学生物系,济南 250100)
摘 要 以不同进化类型的7个大豆居群为分类运算单位,选取了28个形态学、生态学性状,对不同进化类型的大豆居群进行了数值分类研究.
Q分析及图论分析揭示野大豆、半野生大豆与栽培大豆之间存在较大差异.主成份分析表明前三主成份可保留总信息量的91.05%,说明种内居群分类所选性状合理,并能在三维空间表达各居群间的相对位置.关键词 野大豆;聚类分析;主成份分析;图论分析
中图分类号
Q949
A STUDY ON NUMERICAL TAXONOMY OF SOJA
Zhang Kewei, Zheng Yijin
(Dept. Of Biol., Shandong Univ., Jinan 250100)
ABSTRACT
The study using seven populations of different evolutional soybeans as OTUs and selecting 28 characters involved in morphology and ecology as taxonomic characters,deals with the numerical classification of those populations. Q cluster analysis and graph theory analysis shows these are great diversity among wild soybeans, semi wild soybeans and cultivated soybeans. The results of principal components analysis reveals that the first three principal components comprise 91.05% of information amount of that possessed by 28 characters, which suggest that the characters selected to classify the intraspecific populations of G. soja. are reasonable and the relative position among the populations can be successfully depictured in the three
dimensional space.Key words wild soybean; cluster analysis; principal components analysis; graph theory analysis
生孢噬纤维细菌的分离纯化及鉴定
齐 飞 张颖舒 高培基
(山东大学微生物技术国家重点实验室, 济南 250100)
摘 要 采用纤维素琼脂糖双层平板的方法,由土壤中分离纯化出一株好氧性纤维素降解菌.通过对形态学特征及生理生化学特征的研究,初步鉴定该菌为生孢噬纤维细菌(
Sporocytophaga).关键词 生孢噬纤维细菌;纤维素琼脂糖双层平板;透射电镜
中图分类号
Q933ISOLATION AND IDENTIFICATION OF A CELLULOSE DEGRADATINGSTRAIN FROM SOIL
Qi Fei, Zhang Yingshu, Gao Peiji
(
State Key Laboratory of Microbial Technology , Shandong Univ., Jinan 250100)
ABSTRACT
A strain of cellulolytic bacterium was isolated from soil by cellulose-agarose double-layer plate. The properties of morphology and physiology of this strain was studied.According to
《Bergey′s Manual of Systermatic Bacteriology》,The stran was identified as a member of the genus of Sporocytophaga.Key words Sporocytophaga
;Cellulose-agarose double-layer plate; Transmission electron microscope
抗高浓度葡萄糖阻遏的纤维素酶高产菌的选育
宋小炎 宋桂经 孙彩云 刘陶陶 韩 峰
(山东大学微生物技术国家重点实验室, 济南 250100)
摘 要 以本室保存的一株纤维素酶产量较高的拟康氏木霉为出发菌株,经紫外诱变处理,用葡萄糖(梯度浓度)纤维素双层平板选育,在含葡萄糖(4%)纤维素双层平板上获得一株葡萄糖浓度高达10% 仍能产生纤维素水解透明圈的突变株
UVⅢ.培养6d,干曲的CMC酶活、FP酶活和βG酶活分别可达1145.7 u/g、55.6 u/g和24 u/g.分别是出发株的2.4倍、3.4倍和12.6倍.关键词 纤维素酶;抗阻遏;葡萄糖
中图分类号
Q939
PREPARATION OF A MUTANT KESISTANT
TO GLUCOSE REPRESSION
Song Xiaoyan, Song Guijing, Sun Caiyun, Liu TaoTao, Han Feng
(State Key Lab. Of Microbial Technology, Institute of Microbiology,Shandong Univ., Jinan 250100)
ABSTRACT
A mutant from Trichoderma pseudokoningii, which can synthesize cellulases when high concentration glucose exists, was obtained by using agar plate screening techniques. The mutant strain was isolated from the agar plate, which contains 4% glucose. This strain is resistant to catabolite repression by glucose and it produced clear catalytic zones on agar plates with 10% glucose. In solid state fermentation, the mutant strain produced high CMCase, FPase, and beta-Gase activities, which were 1145.7 u/g dry weight, 55.6
u/g dry weight, 24.0 u/g dry weight after 6 days' culturing. And these were 2.4, 3.4,12.6 times that of the starting strain, respectively.Key words cellulase; resist
;glucose