查询词典 D.A.

Finally,we prove that the left global dimension of a DG algebra A is larger than or equal to the dimension of the triangulated categories Dand D~c.

最后我们证明DG代数A的整体维数是三角范畴D以及D~c的维数的一个上界。

Because of the colon, prostate, breast and some other organizations may have enzymatic functioning mechanisms, they can be 25 hydroxy vitamin D into 1,25 dihydroxy vitamin D, which is a powerful hormone regulating cell proliferation, and may restrictions on certain types of cancer metabolic activity.

因为结肠、前列腺、乳腺和其他一些组织可能拥有酶促运转机制，它们能将25羟维生素D转化成1，25二羟维生素D，后者是一种强有力的调节细胞增殖的激素，并且可能限制某些癌症的代谢活性。

In a climatically controlled chamber (28±1℃, L16:D8), E. splendens was planted in pots containing mixed vermiculite and perlite without Cu. At about 220 d after seeding, plants (around 65 cm in height) were used to collect their volatile using SPME. Eleven chemicals were identified using GC-MS, p-pinene, D-limonene, elsholtzia ketone, dehydro elsholtzia ketone,γ-elemene, humulene, caryophyllene, a-caryophyllene, and three sesquiterpenes. The most abundant volatiles were caryophyllene and y-elemene, followed by humulene and a-caryophyllene.

室内在不含Cu的蛭石和珍珠岩混合基质中种植海州香薷，用固相微萃取法收集健康植株(株龄220余天，株高65cm左右)的挥发物，采用GC-MS法识别出11种主要组分，从中鉴定出β-蒎烯，D-柠檬烯，香薷酮，脱氢香薷酮，γ-榄香烯，蛇麻烯，石竹烯，α-石竹烯(α-caryophyllene)，以及三种倍半萜类化合物，其中石竹烯和γ-榄香烯含量高，其次为蛇麻烯和α-石竹烯。

The results showed that the perimeter of leg significantly decreased (P.05), further decreased (P.01) in a HDT time-dependent manner compared with pre-HDT; in limb muscular group, the perimeter of leg decreased significantly (P.01) during from the HDT 18th day to the 30th day compared with pre-HDT; in bicycle ergometric group, the perimeter of leg decreased significantly (P.01) during from the HDT 22nd day to the 30th day ; in the HDT 10th day, the perimeter of leg in bicycle ergometric group increased significantly (P.05) as compared to that of control group; in the HDT 18th day, the perimeter of leg in limb muscular and bicycle ergometric group increased significantly (P.05) compared with control group.

结果发现，与卧床前相比，对照组小腿围径在卧床第1d显著减小(P.05)，随卧床时间延长进一步显著减小(P.01)；下肢肌力训练组在卧床后期(18～30 d)以及起床后的小腿围径显著减小(P.01)；自行车功量计训练组在卧床第22～30 d及起床后显著减小(P.01)；卧床第10 d自行车功量计训练组的小腿围径显著大于对照组(P.05)，第18 d下肢肌力训练组和自行车功量计训练组的小腿围径均显著大于对照组(P.05)。

We detected the result with the chi square test and concluded that it has statistical significance (P.05). Conclusion The detection of 1-3-β-D glucosan in patients blood samples is a both effective and quick way to diagnose the fungal rhinosinusitis. The positive rate of the way is about 90%.

本研究共计对20例真菌性鼻窦炎(19例为真菌球型，1例为慢性侵袭性真菌性鼻窦炎)患者及5例对照组患者血浆中1-3-β-D葡聚糖进行检测，发现其中18例真菌性鼻窦炎患者血浆中1-3-β-D葡聚糖的含量大于试剂盒的诊断标准10pg/ml，实验的阳性率为90%，血浆1-3-β-D葡聚糖水平可以用于诊断真菌性鼻窦炎。

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。

The D-loop region was found to be a hot spot for somatic mutation in mtDNA of the tumors. The results revealed that 45.7 %(16/35) of the HCCs carried somatic mutation in the D-loop region, and the most mutations are homoplasmy.

过去的研究显示：粒线体DNA D-loop 区域是发生体突变的好发点，本论文的结果显示有45.7 %(16/35) HCC含有D-loop 区域体突变且多为同质性。

The invention relates to a synthesis method of N-acetylaminoglucose, which comprises dissolving D-glucosamine hydrochlorate and alcohol at the mass ratio of 2-2.5:100, adjusting the pH value of the solution to 9-10, filtering, taking the filter liquor, mixing and adding acetic anhydride at the 50-60wt% amount of D-glucosamine hydrochlorate, mixing and reacting for 2h, using absolute ethyl alcohol to recrystallizing, filtering and recrystallizing via water, to obtain rod-shape food grade N-acetylaminoglucose.

本发明涉及一种N-乙酰氨基葡萄糖的合成方法。该方法的具体步骤为：将D-葡萄糖胺盐酸盐和乙醇按2～2.5∶100的质量比溶于水中，调节该溶液的pH值为9～10；过滤，取滤液，搅拌下加入乙酸酐，其加入量为原料D-葡萄糖胺盐酸盐量的50～60wt％；搅拌反应2小时后，用无水乙醇进行重结晶；过滤，晶体再用水重结晶，得棒状食品级N-乙酰氨基葡萄糖。

The effects of low irradiance on chlorophyll a fluorescence kinetics were studied in two eggplant Solanum melongena L.

根据快速叶绿素荧光诱导动力学原理，选用耐弱光茄子品种99-8和不耐弱光茄子品种黑又亮作试材，进行遮光（光照强度相当于自然光照的40%）15 d、未遮光15 d、遮光30 d和未遮光30 d 4个处理，用JIP-测定法对不同耐弱光性品种在不同光照条件下的叶绿素荧光特性进行研究。

The main gluconeogenic precursor in kidney is thought to be lactate; however, less is emphasized enantiomerically. L-lactate is a glycolysis end-product, but D-lactate is formed after detoxification of methylglyoxal, which is the main source of advanced glycation end-products.

乳酸为肾脏糖质新生的主要来源，其含有一不对称碳，故具有D-、L-乳酸两种镜相异构物，而D-、L-乳酸两者之生成相当不同，L-乳酸是糖解作用之终产物，D-乳酸为体内一醣化终产物(advanced glycation end-products)─甲基乙二醛进行去毒化反应所生成，目前缺乏对乳酸镜像异构物与肾脏糖质新生间相关的探讨。

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。