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Results: 1. The value of all experimental indexes decreased significantly after heat stress, and reached the lowest at the time 2-8 hours after heat stress. This indicates that the immunity of the mice is damaged to the largest extent at 2-8 hours after heat stress. 2. L-arginine supplementation with appropriate dose could remit the acute atrophying of thymus and spleen tissue caused by heat stress. 3. After L-arginine supplementation with appropriate dose, the lymphocyte proliferation, the level of concentration of IL-2 and * expression of IL-2R raised in the group with room temperature; in the heat stress group the level of three indexs decrease significantly. Furthermore, the decrease of the group given 1 .Smglg.bw L-arginine is the smallest. This result indicates that the concentration of 1 .Smglg.bw L-arginine supplementation could remit the depressment of the immunity caused by heat stress. 4. The [Ca2~] in activated thymocytes of the group with L-arginine -2- supplementation is significantly higher than that of the group with water supplementation. This indicates that L-arginine supplementation could protect thymoeytes of mouse under heat stress. We also found that the fluorescence intensity of [Ca2~] in activated thymocytes of the group given 1 .Smglg.bw L-arginine is the highest.

结果:1、热应激后小鼠的各项免疫指标均有显著性下降,其中在2.8小时降到最低,提示在这个时间段小鼠的免疫功能受到最大损害;2、适量补充精氨酸有助于缓解热应激导致小鼠胸腺和脾脏的急性萎缩;3、常温组,补充适量精氨酸后小鼠淋巴细胞增殖活性、IL-2的浓度及IL-2R的表达均有显著性上升,而热应激后三指标均显著降低,其中在精氨酸给予浓度为1.5mg/g.bw时三指标的降低程度最少,提示该浓度可最大程度缓解热应激对小鼠免疫功能的抑制;4、补充精氨酸组的活化胸腺细胞[Ca~(2+)]较给水组有显著性上升,说明精氨酸对热应激小鼠胸腺细胞具有保护作用,并发现在精氨酸给予浓度为1.5mg/g.bw时活化胸腺细胞的胞浆钙离子荧光强度达到最大;5、热应激后小鼠血清NO的浓度均有不同程度的上升,补充精氨酸后血清NO上升更加明显,但并非随精氨酸给予浓度的增加而增加。

The results showed that the amount of bacteria was 2.118×107cfu, the highest in high temperature Daqu druing fermentation, while mildews, 6.446×106cfu and yeasts, 6.6×104cfu.

研究发现,高温大曲发酵过程中的微生物总数以细菌为主,高达2.118×107 cfu/g·曲;霉菌次之,为6.446×106 cfu/g·曲;酵母最少,仅有6.6×104 cfu/g·曲。

When the temperature was at 25℃, the EFS30 OPS two-step method had a blastocyst rate of 62.22%, the highest rate in all groups. After the morulae cultured from thawed embryos from the best straw group and OPS group were transferred, all groups have obtained offspring.

在25℃温度条件下细管法和OPS二步法玻璃化冷冻后的小鼠2-细胞胚胎,经培养发育至囊胚后,用H33342染色,在荧光显微镜下观察并进行细胞计数。

The results confirm that NH3 slip increases with both higher ratio of NH3 to NO n(NH3/n and higher concentration of a reducing reagent, while it decreases with the increase of temperature. Initial NO concentration and its residence time can also affect the NH3 slip. A higher initial NO concentration lead to higher NH3 slip, but added residence time has the opposite effect. Among urea, ammonium carbonate and ammonia liquor, the NH3 slip of urea is the highest and that of ammonia liquor is the lowest.

试验结果表明:温度越高,漏失氨含量越低;随氨氮物质的量比的增加,NH3漏失含量不断增加;还原剂质量浓度越低,NH3漏失含量越低; NO初始浓度和停留时间对漏失氨浓度也有影响,NO初始浓度越高NH3漏失浓度越高,停留时间越长漏失氨浓度越低;不同还原剂NH3漏失浓度不同,尿素、碳酸氨、氨水3种还原剂中,尿素的NH3漏失浓度最高,氨水的NH3漏失浓度最低。

The inhibitory effect was strongest in King B2 medium, the optimum temperature for the highest antimicrobial activity was 33℃, and the optimal pH9.0. In the antagonistic test of BEB2 to the banana wilt disease, the inhibition was obvious with different in vitro methods, and the control effect of pot experiment was good.

结果发现,香蕉内生拮抗细菌BEB2为枯草芽孢杆菌;不同温度、pH值和培养基下的BEB2发酵液对香蕉枯萎病菌生长的抑制能力具显著差异,在King B2培养基上抑菌作用最强,最适抑菌温度为32 ℃,最适抑菌pH值为9.0。

The updraft gasifier achieves the highest efficiecy as the hot gas passes through fuel bed and leaves the gasifier at low temperature.

气化炉的上升气流,实现了作为最高 efficiecy热气体穿过燃料床和叶在低温气化炉。

After rescreened,a strain F00 (named temporarily F00, the same to the following),with highest flocculating activity was picked up.Using optimized and orthogonal tests, the optimum culture conditions are: Sugar as source of carbon, Cargamide as source of nitrogen,added P, Mg, K, Zn, Mn mineral elements, initial pH value 6.5, inoculation 4-5 x 104spores/ ml, temperature 30癈 and aerations 80 rpm.

通过用它作接种量、培养基优化及最佳发酵条件正交试验,确定F_(00)产生絮凝剂最佳条件:发酵培养基以蔗糖作碳源,尿素作氮源,辅加磷、镁、钾、锌、锰等矿质元素,初始pH值6.5,接种量为每毫升发酵液起始含4~5×10~4个孢子,发酵温度30℃,摇床转速80rpm。

The results show that the maximum detectivities of a-Si and polySiGe bolometers are 2.23×108 and 3.75×108 cmHz1/2W-1 respectively, and TFT-based room-temperature infrared detectors have a maximum detectivity of 1.02×109cmHz1/2W-1, which reaches the same highest level in performances in the world.

结果表明,斩波频率为30Hz时,a-Si和polySiGe测辐射热计的最高探测率分别达到2.23×108和3.75×108cmHz1/2W-1,TFT室温红外探测器的最高探测率可达1.02×109 cmHz1/2W-1,达到目前国际先进水平。

Enzyme activity in supernatant from flask fermentation after 132 boors induction was 167 umL^(-1) Its expression products was active under pH2.0~8.0 and the activity was up to the the highest under pH5.5. The optimum temperature for enzyme activity was 55℃.

摇瓶诱导发酵132h后发酵液中植酸酶的活性可达167umL^(-1);表达产物在pH2.0~8.0均有活性,最适pH为5.5,最适温度为55℃。

These diodes had to be good; leakage had to be low at the highest operating temperature.

这些二级管一定要好的,在最高操作温度时漏电流要尽量低。

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The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

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