Objective : To mutate breeding with Penicillium chrysogenum in existing production in order to obtain stable high yield strain .

前言：目的：对现生产用产黄青霉菌诱变育种以获得稳定 高产 菌株。

Selective Cultivation of High Yield Strain of Penicillium Chrysogenum The Yellow Paint

产黄青霉 高产 菌株的选育

Results show that with the increase of cooling rate or decrease of measurement temperature both the yield stress and yield time increase but the yield strain decreases .

发现在相同测量方式下，随降温速率的增大或测量温度的降低，屈服应力增大、屈服时间变长、 屈服 应变减小。

The higher the volume fraction the lower the proportion of yield strain is .

骨小梁的体积比越高， 达到 降伏 应变的比例就越小。

The high yield strain could be applied in fermentation for cordycepin product after further genetic stability test .

虫草素 高产融合子在经过进一步遗传稳定测试后，可用于以获得虫草素为目的的菌丝体发酵培养。

A high yield strain that produced this enzyme was obtained by induced-mutation . Its transformation ability increased 149.28 % . And the content of AA-2G reached 274.78mg/ml .

采用紫外线诱变育种，筛选到一株酶转化能力提高了 149.28% 的 菌株Z3104，使AA-2G含量达到了274.78mg／L。

Vertebral compressive test showed that the maximal load yield stress maximal stress yield strain and amount of bone mineral parameter increased significantly ( P < 0.05 ) except for the energy ( P > 0.05 ) .

腰椎骨压缩试验的结果显示，实验组除能量吸收外（P>0.05），其最大载荷、屈服应力、最大应力、 屈服 应变和骨矿含量等参数均有显著增加（P<0.05）。

The surface characteristics of the human temporomandibular joint ( TMJ ) disc specimens in normal 6 % stress relaxation and 0.05 mm / s tensile yield strain conditions were observed with the scanning electronic microscopy .

用扫描电镜观察正常人体颞下颌关节盘加载后阶跃 应变为6%时应力松弛和以0.05mm／s加载拉伸 破坏后的关节盘表面特征。

The fermentation medium and the conditions of a high yield strain producing high alkaline protease were studied the purification and the characterization of the alkaline protease were also studied .

本文对一 株碱性蛋白酶 高产菌株的发酵培养基及发酵条件进行了优化，并对酶的分离纯化工艺及酶的主要性质进行了研究。

Study on the High Yield Strain of Gentamicin Producer by Protoplast Fused and Fermentor Test

庆大霉素产生菌原生质体融合 高产 株与发酵罐试产的研究

Screening of High Exopolysaccharide Yield Strain of Boletus edulis by UV Ray

美味牛肝菌胞外多糖 高产 菌株的诱变选育

Screen of high lentinus edodes polysaccharide yield strain by protoplast mutagenesis

原生质体诱变筛选香菇多糖 高产 菌株

A high polysaccharide yield strain of Hericium erinaceus was screened through ~ ( 60 ) Co-gamma irradiation under the condition of 800 Gy of irradiation dose and 27.84 Gy / min of dose rate .

采用60Co-γ射线辐照诱变尖端菌丝，在辐照剂量为800Gy和剂量率为27.84Gy/min的条件下选育出一株猴头菌多糖 高产 菌株。

Study of fermentation conditions of nisin yield strain Streptococcus lactis P-99

乳链菌肽产生菌 P-99的摇瓶发酵条件

Meanwhile based on the linear regression approach the MTST model is capable of systematically predicting the yield strain at specified strain rate and temperature and the predicted yield strain agrees well with that obtained by the MD simulation .

同时，基于线性回归的修正转换态理论模型可以系统预测特定应变率和温度条件下的 屈服 应变，预测数值与分子动力学模拟结果吻合。

UV induced mutagenesis of the protoplast was also Conducted . resulting in the formation of more big colonies from which a high yield strain of capacity 3 times more than that of the starting strain was screened .

实验还表明UV诱变原生质体对形成的大菌落有良好 效果，从中筛到一 株产量超过出发菌株3倍以上的 高产菌株。

Simulation obtains the stress-strain curve yield strain and strength fracture strength and initial elastic modulus of each nano-wire with different cross-section size and different strain rate . A forecasting formula on mechanical properties of nano metal affected by strain rate was put forward and verified .

模拟得到各种纳米镍丝的应力-应变曲线、 屈服 应变、 屈服强度、断裂强度和初始弹性模量，提出了纳米金属丝快速变形力学性能的应变率效应预测公式并加以验证。

SFRC had various yield degrees in parallel direction and the yield strain and stress value of SFRC with polyester was smaller than that of SFRC with nylon short fiber but there was no yield phenomenon in vertical direction .

SFRC在平行方向上有不同程度的屈服现象，且添加聚酯短纤维的SFRC 屈服 应变及应力值小于添加尼龙短纤维的SFRC，SFRC在垂直方向没有应力屈服现象；

Breeding of high yield strain Aspergillus niger 3502 for pectinase

果胶酶 高产 菌株Aspergillusniger3502的选育

The result shows that yield strength is close to the detas of 0.5 % yield strain .

结果表明：按 切线交点法取用的强度与0.5% 应变对应的强度值接近。

Screen of herbimycin A high yield strain by selective indicator microorganism

用选择性指示菌筛选除莠霉素A 高产 菌株

In this paper the ductility of steel bar is expressed by ductility ratio B the figure of dividing ultimate strain by yield strain .

论文中钢筋延性采用钢筋延性比B来表示，即极限应变与 屈服 应变的比值；

With the increasing of cross sectional area the elastic modulus increases but yield stress and corresponding yield strain decrease .

随着截面尺寸的增加，弹性模量变大，屈服应力及相应的 屈服 应变减小。

Optimization of fermentation culture medium for high yield strain hl-9901 of xanthan gum

黄原胶 高产 菌株HL-9901发酵培养基的优化

Screening the high yield strain of polysaccharides by UV mutation method at the same time we optimized the liquid ferment condition studied the main factors of extraction rate and the degree of purification of polysaccharides .

并通过UV诱变红曲霉筛选红曲多糖的 高产 菌株，优化其液体发酵条件。研究了影响红曲多糖提取率和纯化程度的主要因素。

There is no significant relation between relative bone surface and its proportion of yield strain .

骨小梁表 面积比是多是少， 似乎和其 强度没有很直接的关系。

Screening of High Polysaccharide Yield Strain of Hericium erinaceus by ~ ( 60 ) Co-gamma Irradiation

~（60）Co-γ射线辐照诱变尖端菌丝选育猴头菌多糖 高产 菌株

Selecting high yield strain optimizing cultural condition founding reasonable extracting and purifying technology are the three key links in the biosynthesis of PHB . Biotechnology used in the production of PHB will have broad prospects .

筛选优良 菌株，优化培养条件和建立合理的提取工艺是PHB生产中的三大关键环节；生物技术在PHB生产中具有广阔的应用前景。

BREEDING OF HIGH YIELD STRAIN ASPERGILLUS NIGER 3502 FOR PECTINASE The studies on enzyme system of Aspergillus niger strains with high inulinase activity

果胶酶 高产 菌株Aspergillusniger3502的选育高产菊粉酶的黑曲霉菌株产酶酶系分析与研究