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The following are the expressionsfor the mean pressure set up at the detection plate and for the time of the signal toprogagate from the radiator to the detector:这里是1个公式,省略） where Re is the real part of the expression appearing within the braces, 0 is the density ofthe medium, vo is the amplitude of the vibrational velocity, c is the speed of sound in themedium, d2 = I +(r/zcos 8, z is the distance between the emitting and receiving plates, B is the angle between the axis of the acoustic channel andthe axis of the tube, r = vro/c, v is the flow speed of the fluid, d is thediameter of the pipe, m is the circular frequency, k is the wave number,where a is the radius of the plate (this is taken as the same for the emitting and receivingplates for simplicity, but there is no difficulty in discussing plates differ~mg in radii),,~ is the vibrational frequency of the emitting plate, andThe triple sums in the expressions for N~ and N2 may be neglected if the flow speed islow, since the contributions for these become negligible.

以下是表达式平均压力为定于检测板和为信号时间progagate从散热器到探测器：（这里是1个公式，省略）假如再是出现在大括号表达式的实部，0是密度中期，沃是速度的振动幅度，C是健全的速度中，D2中=我+的导向8，z是对之间的距离发射与接收板，B是声之间的通道轴角该管的轴，R =中心内大多分为/荤，v是流体的流动速度，，D是管道直径，m是圆频率，k是波数，的其中一盘是半径（这是为重点，同样的发射与接收为le简单板，但没有讨论板的困难，在半径不同毫克），，是发光板振动频率，和在N的表达式的三重总结和N2可以忽略，如果流速低，因为这些变得微不足道的贡献。

If R admits a generalized derivation δ with d=0 such that either δ=x°y or δ+x°y=0 holds for all x,y∈I,and if δ is not the identity map,then R is commutative.

设R是素环，I是R的非零理想，如果R容许一个非单位映射的左乘子使得对所有x，y∈I满足δ=x°y或δ+x°y=0，那么R可交换。

Assuming R be a semiprime ring with extended centroid C and Q be the maximal right quotient ring of R, f be a noncentral multilinear polynomial over C.d and δ are derivations of R.

给出了，假设R是带有扩张形心的半素环，Q 为R的极大右商环，f是R的扩张形心C上的非中心值的多线性多项式。

Tabaci was the shortest (19.3 d) on hairy gourd and the longest (29.0 d) on bitter cucumber, the survival rate from egg to adult was the highest (92.85%) on cucumber and the lowest (53.08%) on bitter cucumber, the laid eggs were the most (187.4 eggs per female) on cucumber and the least (30.0 eggs per female) on bitter cucumber, and the longevity was the longest (25.2 d) on cucumber and the shortest (10.9 d) on bitter cucumber. The intrinsic rate of increase r(subscript mon cucumber, hairy gourd, bitter cucumber, and sponge gourd was 0.1453, 0.1429, 0.0616, and 0.1055, respectively.

结果表明，B型烟粉虱在节瓜上的世代发育历期最短，为19.3d，在苦瓜上的世代发育历期最长，为29.0d；世代存活率在黄瓜上最高，为92.85%，在苦瓜上最低，为53.08%；平均单雌产卵量在黄瓜上最多，为187.4粒，苦瓜上最少，为30.0粒；雌成虫寿命以在黄瓜上最长，为25.2d，在苦瓜上最短，为10.9d.B型烟粉虱在黄瓜、节瓜、苦瓜和丝瓜上的内禀增长率r(下标 m分别为0.1453、0.1429、0.0616和0.1055。

Through the consideration of the triplet-state configuration of d-TMA and the effect of heterolytic reaction on system entropy value,△H and △S of the dissociation reaction of d-TMA were accurately calculated at the same time. The plot of lnK vs l/T had a perfectly linear relation: lnK=-9624.4363/T+20.2303, and the correlation coefficient R^2=1.0000, which agreed quite well with the predecessors' experimental results.

通过考察d-TMA三线态构型和异裂反应对系统熵值的影响，准确计算了d-TMA离解反应的△H和△S以lnK对l/T作图，两者之间具有很好的线性关系：lnK=-9624.4363/T+20.2303，相关系数R^2=1.0000，与前人实验结果相当一致。

D limonene was distributed among the culture flasks (200 mg/L). The flasks were incubated at 28oC on a rotary shaker (r/min=120) for 5 days. On completion, the culture broth were successively extracted with EtOAc. The extract was quantitatively measured by gas chromatography mass spectrometry analysis, The results showed that biocatalytic reactions were comprised of oxidation, including hydroxylation and ketonization which occurred at different positions of the D limonene, as well as hydrogenation, hydrolyzation, esterification and cyclic cleavage. These bacteria strains possess the distinctive biocatalytic capacities towards the D limonene. A series of terpenoids, including sesqui , di and tri terpernoids were also observed,which was accounted for D limonene had influence on the metabolites of marine bacteria.

以2216E为培养基，添加200mg/L的柠檬烯，在28℃，以120 r/min摇瓶培养5 d，用乙酸乙酯提取培养液，经GC MS分析其转化产物，结果显示，这些细菌能在柠檬烯的不同位置进行羟基化、羰基化等，并伴随有还原、水解、酯化、开环等反应，但转化能力和转化程度不同；在产物中，还检测到系列结构不同的其它萜类：包括倍半萜、二萜以及三萜等，这些萜类化合物的产生跟柠檬烯的加入有关，说明柠檬烯能影响细菌代谢产物的产生。

In this article, the method for detecting five kinds of biogenic amines by HPLC was established, and the contents of biogenic amines in Chinese rice wines and soy sauces were detected. In order to reduce the contents of BA, we inoculated Lactobacillus curvatus 6031 and Leuconostoc mesenteroides 51-5 D in sausage and the contents of BA and the microbial counts was studied during the fermention of sausage.

建立了高效液相色谱测定生物胺含量的方法，方法稳定性好、精密度高，回收率高，五种生物胺的回归方程分别为：y 尸胺=48.903x R 2=0.9996；y 组胺=36.105x R 2=0.9994；y 酪胺=29.865x R 2=0.9902；y 亚精胺=46.671x R 2=0.9967；y 精胺=31.239x R 2=0.9926，在2～40μg/ml的范围内R均大于0.99，检测限分别为：尸胺、组胺和亚精胺为0.05μg/ml，酪胺为0.1μg/ml，精胺为0.25μg/ml。

The friable embryogenic callus with small grains and without proembryo formation was screened in the process of continuous subcultures for 4~6 times on the medium with low content of sucrose from embryogenic cultures induced from immature embryos in litchi (Litchi chinensis Soon.). The well-scattered embryogenic cell suspensions could be rapidly established from the friable embryogenic callus in 2 liquid initial MS media respectively supplemented with 2,4-D 2 mg/L or 2,4-D 2 mg/L, KT1 mg/L and AgNO3 5 mg/L shaking at 100~120 r/min within 10-14 days.

荔枝幼胚诱导的胚性培养物在低糖条件下连续继代4~6次左右，可筛选到颗粒细小、不含原胚的松散型胚性愈伤组织；以这种松散的胚性愈伤组织作为起始材料，在附加2，4-D 2mg/L或2，4-D 2mg/L、KT1 mg/L、AgNO3 5mg/L的MS液体启动培养基上振荡培养（100~120 r/min）10~14 d，即可建立起分散性良好的胚性悬浮细胞系。

The influence of thickness d of ZnO varistors on the residual voltage ratio K \-r has been experimentally studied.It is showed that K \-r also has dimensioned effect. The results show that there is a residual voltage ratio K \-r decreases propor tonally with E \- 1mA ,and increase μ as grain mean size.

实验研究了厚度d 对ZnO压敏电阻片残压比Kr 的影响规律，表明残压比同样存在几何效应；实验还表明残压比Kr 随电位梯度E1m A成反比例下降，随平均晶粒尺寸μ的增大而增大；找到了一个综合微观结构参数平均晶粒尺寸μ和晶粒尺寸方差σ2 的乘积（σ2μ），能较好地反映电性能与微观结构参数的关系。

Method］mscs(5×106) were cultured combining with gdabm in vitro in centrifuge tube, tgf β was added to collagen and attached to gdabm. culture tube was centrifuged in 600 r/min, 10 times/d, 10min per time. the morphological characters, cell proliferation were detected.

方法］将 mscs与复合转化生长因子-β的胶原共同混合后培养于三维软骨支架材料上，离心管内培养，10次／d，以600 r／min离心10 min.8 h、24 h、72 h、 4 d、7 d进行倒置显微镜形态学观察、扫描电镜观察。1～8 d采用mtt法检测细胞增殖活性，描绘生长曲线。

He and Nina moved to California and lived at 2005 Ivar Street, Apt.

他和Nina搬到加州，并在2005年伊瓦尔街，公寓生活。

Droperidol （ potently inhibits transfected HERGchannels and this is the probable mechanism for QT prolongation.

氟哌利多有效地抑制了转染的 HERG 钾通道，可能是 QT 间期延长的机制。