查询词典 B-complex

The thermal property studies indicate that the mass loss of compound B was 54.39% at 242.2~750℃, and when the temperature was 1000℃, there was 25.11% char residue left, which showed that the title compound has a good thermal stability and char forming capability. Using acetonitrile as the solvent instead of trichloromethane or 1, 2-dichloethane gave higher yield. During the synthesis, the yield was very low when triethylamine was used as acid acceptor alone, and when a little amount of 4-dimethylaminopyridine was added at the same time, the yield could be 81%.

结果表明，所合成的化合物B的结构与预期的结构一致；热性能研究表明，化合物B在242.2~750℃质量损失为54.39%，1000℃时仍有25.11%的炭残渣，显示出优异的热稳定性和成炭性；在相同反应条件下，用乙腈作为溶剂的反应产率比使用氯仿和二氯乙烷为溶剂的高，并且在合成过程中，单独使用三乙胺作为缚酸剂时产率很低，而当同时加入少量4-二甲氨基吡啶时，产率可达81%。

The mtDNA COI, mtDNA COⅡand mtDNA Cyt b genes of different Trichogramma species and different geographical populations of the same Trichogramma species were sequenced, and the genetic distance and phylogenetic relationships of Trichogramma were respectively established based mtDNA gene sequences.

本研究成功测得了多种赤眼蜂不同种和不同地理种群mtDNA（COI、 COⅡ和Cyt b ）的基因序列，对赤眼蜂mtDNA基因序列从遗传距离和系统进化树进行分析，结果表明3个基因序列均适合赤眼蜂种一级的分子鉴定，不能用做种下阶元的区分，同时确定mtDNA Cyt b 基因为赤眼蜂蜂种鉴定的理想基因序列。

The mathematical relationship between the scattering of UCA and B-mode video intensity was set up on the basis of B-mode imaging principles.

根据B超成像原理建立了UCA的散射特性与视频强度之间的关系。

We used the immunohistochemical ABC method to detect the expression of NF-κB at 2、 6、 12、 24、 48、 72 hours after infected by Salmonella typhimurium, and we deal the data statistically with univariant analysis of variance and Student-Newman-Keuls multiplerange test.

三组分别在感染鼠伤寒沙门氏菌后2、6、12、24、48、72小时6个时点，用免疫组织化学方法(抗NF-κB p65抗体、ABC法，石蜡包埋)和阳性细胞面积分布率半定量测定小肠、结肠及肾脏中NF-κB活性表达百分率，采用单变量多因素方差分析和Q检验做统计学处理。

UV-B radiation increased amounts of total sugar and uronic acid in cell wall polysaccharides and changed the ratio of total sugar and uronic acid in pectin.

SNP对除果胶外的细胞壁各组分的作用与UV-B辐射相似，LNNA和PTIO对除果胶外的细胞壁其它组分的作用与UV-B辐射相反。

The inhibitory effect of the volatilizable metabolites of two antagonists to P.funerea was analyzed in contrast with the inhibitory rate of the control . Gvirens , with the highest inhibitory rate of 59.7%, had more excellent and stable inhibitory activity and the effect was more relative with the time, but the inhibitory rate of B.firmus was less relative with the time and the inhibitory effect of B.firmus became stable after 72 hours.

两种颉抗菌代谢物中不同成份的抑菌效应试验表明，G.virens产生的多糖、粗脂肪、蛋白质对P.funerea孢子萌发有抑制作用，粗脂肪、蛋白质更明显，其中蛋白质抑制效果较稳定；B.firmus产生的粗脂肪可完全抑制P.funerea的孢子萌发，多糖、蛋白质抑制效果也较稳定，但多糖效果更好。

Results After injection before examination,heart rate and blood pressure decreased temporarily in most of patients of group A(P.05).While there was a conspicuous increase in heart rate and blood pressure in the patients of group B(P.05).There was no pain or discomfort in the patients of group A.The phenomena such as nausea and vomition,begma could be found in most of patients of group B.

结果 A组患者在给药后呈一过性心率的减慢、血压降低(P.05)，镜检中无明显的不适反应；B组大多数患者镜检过程中心动过速、血压升高(P.05)，出现了不同程度的恶心、呕吐、呛咳等不适反应。

The electric potential difference UAB between points A and B in an electric field is equal in strength to the work WAB done on a positive unit charge moved form A and B.

电场中AB两点间的电势差等于把单位正电荷从A点移到B点电场力所做的功。

Results: Wallerian degeneration was observed in the proximal and distal ends of all grafts of nerves harvested at 2 weeks post-engraftment; infiltration of T lymphocytes at the grafts in group B was significant, less T lymphocytes were seen in group C, D and E, while no T lymphocytes were seen in group A and F.

结果：术后2周，所有移植段近端，移植远端神经均有不同程度Wallerian变性，B组移植段见明显T淋巴细胞浸润，C，D，E组次之，A组及F组未见T淋巴细胞。B组以大量成纤维细胞增生为主，A，F组以SC增生为主，C，D，E组介于两者之间。

Therefore, it is important to ask whether both Oct-2 and NF-κB participate the MEK/ERK dependent G-CSF expression. G-CSFp-(-289~+25)-Luc, CSF-box-deleted G-CSFp-(-145~+25)-Luc, or octamer-mutated Oct-mut-G-CSFp-(-289~+25)-Luc reporter plasmids were used to investigate the importance of CSF-box and octamer in response to LPS.

在G-CSF的启动子上有两段已被发现对其活性相当重要的序列：CSF-box及octamer，根据过去研究及本实验室未发表的实验结果，此两段序列分别由NF-κB以及Oct-2所结合；於是我们推测MEK/ERK讯息传递路径的下游可能透过NF-κB及Oct-2来调控G-CSF表现。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。