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A bacterial strain using phenol, benzoate, naphthalene, biphenyl and benzothiophene as sole carbon and energy sources was isolated from waste sludge and was identified as Rhodococcus sp. strain DF51 according to morphological, physiological and its 16S rRNA gene sequence.

从太原市郊苯酚污染的土样中分离到一株能以苯酚、苯甲酸、萘、联苯和苯并噻吩为唯一碳源和能源生长，并且具有同时分解单环和双环芳香类物质能力的菌株，经生理生化和16S rDNA基因序列分析鉴定为红球菌DF51Rhodococcus sp。

In this paper, an efficient and easy biological screening method based on the sensitivity to lovastatin of Neurospora crassa was built to deal with the mutant strain rudely by UV mutation. A high-level strain was screened in the shaking flask culture incorporating with TLC and HPLC. A comparison between this two methods also was originally discussed while identifying dyeing using bromophenol blue as the better treatment of TLC, and offering a kind of simple, practical, fast and economical determination qualitatively and quantitatively.

本文有鉴于此，通过紫外诱变处理，并基于粗糙脉孢酶对洛伐他汀的生物敏感性，对诱变菌株进行了初筛；同时，采用摇瓶培养，结合TLC和HPLC的分析方法，复筛出一株高产菌株；对复筛过程两种分析方法分别进行了初步探讨，比较其优劣，确定TLC法经溴酚兰显色剂显色处理为较佳方式；从而，建立了一套简单、实用、快速、经济且有效的洛伐他汀生产菌诱变筛选方法。

A bacterial strain ADZ1 that demonstrated higher efficient in the aerobic denitrification was isolated from the sewage of urban rivers on the selective medium, Bromothymol Blue, after enriched in the shaking flasks. The reduction efficiency for nitrate and the total nitrogen reached 93.1% and 34.7% within 48 hours respectively. Sequence of 16S rRNA suggested that strain ADZ1 belongs to the genus of Pseudamonas, and further was identified as Pseudomonas putida by VITE K?

采用富集培养和BTB平板法从城市河道污水中筛选、分离获得了一株高效的好氧反硝化菌株ADZ1， 48 h内对硝酸盐的降解率为93.1%，总氮的去除率为34.7%。16S rRNA测序及系统发育分析结果表明该菌株属于Pseudamonas sp。，经VITEK？

Based on the idea of magnetic strain, the model of magnetic strain was used to analysis the magnetoelastic buckling of cantilevered ferromagnetic plate in transverse magnetic field.

基于磁致伸缩的概念，采用磁致伸缩应变模型，对横向磁场中铁磁体的磁弹性屈曲的临界磁场这一问题进行了研究。

However, it is not known how orthodontic force influences the function of cementoblast and what is the relationship between the function change of cementoblast with root resorption. So we studied the effect of mechanical stimuli on root resoption by examining the expression OPG and RANKL and exploring the related signal transduction pathway in cementoblast. Methods: Cementoblasts OCCM30 were cultured in DMEM with 10% FBS for 48 hours and starved in DMEM with no FBS for 24 hours, then subjected to mechanical strain by four-point bending system with tension and compression stress at 2000μstrain at 0.5Hz frequency. The flow cytometry was used to examine the cell cycle and proliferation activity after 3h, 6h, 12h, 24h loading respectively. OPG and RANKL mRNA were analysed with real time quantitive RT-PCR after the same loading period as FCM.

本课题利用四点弯曲力学加载系统，采用流式细胞术、实时荧光定量PCR、Western免疫印迹等方法，研究体外培养的成牙骨质细胞株OCCM-30在不同力学环境中增殖活性的变化，以及其表达骨保护素和破骨细胞分化因子的mRNA的变化，探讨应力刺激对成牙骨质细胞表达破骨细胞分化调控蛋白的影响，并通过对应力刺激下成牙骨质细胞分裂原活化蛋白激酶家族中的ERK1/2、P38MAPK活性的变化及其与OPG、RANKL基因表达变化关系的研究，对力学刺激调节破骨细胞分化调控蛋白的相关上游信号转导通路进行初步探讨。

Taking the remolded soil after K 0consolidation and the samples under special stress state by special stress path as the objects, the effect of stress path circumgyration on shear modulus and the trend of shear modulus along with strain under condition of small strain are studied.

以重塑土经K0固结形成的试样以及经K0固结后通过特殊应力路径达到特定应力状态的试样为对象，研究了在小应变范围内应力路径旋转对土体剪切模量的影响以及剪切模量随应变变化的趋势。

The test object was remolded soil after K0 consolidation. Using advanced stress path triaxial system, STDTTS+UNSAT (7kN/1700 kPa) produced by GDS of UK, the effect of stress path circumgyration on shear modulus and the trend of shear modulus along with variation of shear strain under small strain were studied. Some conclusions were drawn.

以重塑土经K0固结形成的试样为试验对象，采用英国GDS公司生产的STDTTS+UNSAT (7kN/1700 kPa)型号高级应力路径三轴测试系统，研究了在小应变范围内应力路径旋转对土体剪切模量的影响以及剪切模量随应变变化的趋势。

This paper described the incomparable advantages of VI technology in reforming traditional strain measuring instrument, and combines with component technology to configurate the new strain measuring system of higher precision and stronger functions.

本文阐述虚拟仪器技术在改造传统应变测试仪器中所具有的无可比拟的优点，并结合组件技术，组建精度更高、功能更强的应变测试系统。

According to two logical judgements, the relation of the semi-infinite plane strain problem and semi-infinite spatial problem is found through analyzing the classical answer of wedge, semi-infinite plane, cone and semi-infinite spatial etc. The Flament answer of semi-infinite plane strain problem and the Boussinesq answer of semi-infinite spatial problem are confinable from the relation.

根据两个合理的判断依据，对弹性力学中的楔形体、半平面体、圆锥体和半空间体等经典解答进行了比较分析，发现了半无限平面应变问题和半空间体问题解答之间的关系；通过对解答之间的关系进行研究分析指出，弹性力学中的半无限平面体的符拉芒解答和半空间体的布希涅斯克解答存在局限性。

The structure and stability of all possible isomers of C50X(X=SiH2, PH, S) were investigated by ab initio HF/3-21G calculations. The calculation results indicate that the preferred position for cycloaddition of SiH2, PH, and S on C50 is consistent, i.e. on the C3-C4 and C4-C4 sites of C50, and the resultant most stable cycloaddition isomers are [5,6]-closed and [5,5]-closed structures. The main driving force governing the stability of the C50X(X=SiH2, PH, S) isomers is the strain, or the conjugative effect, or the combination of strain and conjugative effect, depending on the addition positions and the types of the attacked C-C bonds.

用从头算HF/3-21G方法研究了C50的环加成衍生物C50X(X=SiH2， PH， S)所有可能的异构体的结构与稳定性，计算结果表明，SiH2基团、PH基团与S原子在C50上环加成的优先加成位置相同，都为C3-C4类键和C4-C4类键，并且相应形成[5，6]-闭环和[5，5]-闭环结构的最稳定异构体；决定C50X(X=SiH2，PH，S)各异构体稳定性的主要因素，因加成位置以及发生加成反应的C-C键的单双键类型的不同，可能是张力、共轭效应或者二者的共同作用。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。