查询词典 H-bomb

The results showed that 7-day-precultured embryogenic calli had the best responses for bombardment among 2-7 day' preculture duration. Enhanced transformation efficiency was found in the explants treated with high osmotic medium 4h prior to till 24 h after bombardment. Particles of gold and tungsten were both found suitable for rice transformation and there was no adverse effect when tungsten particles were reduced to 1/3 standard amount for DNA precipitation on transient GUS gene expression. However, it was found that gold particle had higher GUS expression at 120 h post-bombardment. A preliminary microprojectile transformation system with an average of 15-20 blue spots/explant GUS expression was routinely obtained for 'Tainung 67' by using the particle gun with 1,100 psi rupture disk, 6 or 9 cm microcarrier flight distance and 4 mm of macrocarrier flight distance setting.

初步结果显示，以预培养2~7日之胚性癒合组织逐日测试转殖率，以预培养7日之培植体表现最佳；培植体於转殖前4小时至转殖后24小时以高渗透压培养基处理，有助於转殖效率之提高；比较金、钨粒子对转殖率在转殖后48h並无不同，但转殖后120 h取样，则金粒子组有较高之蓝点数；钨粒子用量可减少至1/3標准用量对转殖率並无影响；利用基因鎗在使用1， 100 psi裂碟片、大载片至挡片之距离为4 mm、微载髁至射击目標之飞行距离6或9 cm之设定，GUS基因表现之平均蓝点数均可达15~20个／培植体。

H. who proses it away from morning to night, and never gets beyond corporal and material verities. When I can't sleep o'nights, I imagine a dialogue with Mr. H, upon a given subject , and go prosing on in fancy with him, till I either laugh or fall asleep.

他从早到晚地闲扯，从没离开过肉体和物质这些事情……当我晚上睡不着时，我想象与H先生谈话，就一个话题一直闲聊，直到我大笑起来或是睡着为止。

In this part, two kinds of parameter uncertainties are considered. For the parameter uncertainty of the form =EΣ, necessary and sufficient conditions for quadratically stabilizable with an H〓-norm bound are derived.

从工程应用的角度出发，对具有输出乘型不确定性系统的混合灵敏度问题的H〓状态反馈设计方法进行了研究，提出了一种基于观测器的鲁棒H〓/LTR状态反馈设计方法。

A design method is derived for decentralized observer-based controller, which makes the closed-loop system quadratically stable with an H〓-norm bound for any admissible uncertainties.

在此基础上，研究并提出了当控制器在规定范围内的一部分失效时的分散H〓可靠控制问题，提出了能保证闭环系统可靠稳定和具有一定H〓性能的分散可靠控制器的设计方法。

The Rhodococcus sp.H-412 screened by ourselves in the lab, which possessed the 4S desulfurization metabolic route, was chosen as the target. Conditions of its immobilization and application were main analyzed by using DBT as a model compound.

本文以实验室筛选的、符合4S脱硫代谢途径的Rhodococcus sp.H-412为研究对象，二苯并噻吩为生物催化脱硫模拟化合物，考察了脱硫菌Rhodococcus sp.H-412的固定化操作条件和使用条件。

The microstructures and second phases were examined by transmission electron microscopy.It is found that the specimen treated by 500 ℃/100 h has the best corrosion resistance among all the specimens.TEM analysis of the specimens tempered at 500 ℃ with different time shows that the second phase changes from the seriate strips to the banding...

用透射电镜研究了这些样品的显微组织和第二相，观测到随着保温时间延长，500℃下保温样品中的第二相由连续片层逐渐转变成带状分布的颗粒，保温时间达到100 h时，基体内析出βNb.560℃下保温样品与500℃下保温样品有相似的组织转变过程，只是时间大幅缩短，保温仅10 h时，基体已完全再结晶为等轴晶。

Inflammatory cell infiltration and subserous hemorrhage appeared in 12 and 24 h group.

结果：伤后各组胃黏膜COX2的表达明显高于对照组；实验组各组血浆内毒素水平均明显高于对照组（P.05），于伤后8 h达高峰；伤后各组胃组织出现逐渐加重的胃黏膜下充血、水肿，12、24 h组出现炎细胞浸润、浆膜下出血。

We concluded that DGR was probably an independent etiological factor and might play a synergistical role in the pathogenesis of gastric mucosal lesions along with gastric acid and H.

DGR与H。 pylori感染和胃内酸度均无关，DGR可能是一个独立的致病因素，与H。

Results indicated that the water contents in wheat leaves of uncontinuous drought treatments did not largely changed, but that of roots obviously decreased; the relative water contents in wheat leaves and roots of 24 h continuous treatments were both decreased obviously.

结果表明，每天间断干旱1~4 h处理的小麦叶片相对含水量变化较小，而根系相对含水量变化较大；连续干旱24 h后叶片和根的相对含水量均显著下降。

The minimum accumulation occurred at 96 h, at which transcripts were only 0.07 fold of that in uredinisopore. During incompatible interaction between Pst and wheat, PsCdc2 was down-regulated and its accumulation was lower than that in urediniospore.

在非亲和组合中，该基因表达基本呈下调趋势，在接种后各个时间点的表达量均低于在夏孢子中的表达量，其中接种后12 h时表达量最高，但仅为夏孢子中表达量的0.34倍；接种后96 h表达量最低，为夏孢子中表达量的0.02倍。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。