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By histological comparison, the structure of the autotomized tissue was different from other mantle tissue. Sinus and blood spaces were found in the autotomized tissue. Structural changes before and after autotomy in the autotomized tissue were from dense to sparse creases in the epidermis and dense to loose in the connective tissue.

组织学观察发现:自割组织结构与一般外套膜不同,具有血窦和较多的血腔;自割前之自割组织腹面表皮有很多褶皱,背面表皮则较平坦,内部组织紧密;自割后之自割组织膨大,背、腹面表皮形态改变,腹面表皮褶皱减少,内部组织蓬松。

At 0-60 ℃, the maximum fluorescence intensity of GCS-EPF decreased on heating and the relationship between fluorescence intensity and the change of temperature was linear; At pH=0-13.5, its fluorescence intensity increased with basification and completely disappeared at very acidic pH.

结果表明,修饰后水溶性壳聚糖的水溶液、固体粉末和薄膜在520 nm附近具有较强的荧光发射,其荧光强度不仅在0-60 ℃时对度有较快敏感响应,同时在pH=0-13.5时对pH也有较快敏感响应,具有双重敏感响应,因此可将其作为温度荧光探针和pH荧光探针的高分子材料。

Results Many endothelial cells were observed with higher vigor and adherance to the wall after incubation for 3-5h, and spreaded to form cell masses for 12-24h, and grew densely and converged into single layer which characteristically arranged to cobble-stone shape after incubation for 1-2 weeks.

结果 原代细胞培养3~5h后,大部分活力较高的内皮细胞已开始贴壁,12~24h后,内皮细胞己铺展形成由数个细胞组成的细胞群,1~2w后,细胞呈生长密集状并汇合形成单层,在倒置相差显微镜下,呈特征性"鹅卵石状"或"铺路石状"镶嵌排列生长。

The absorption spectrum center wavelength of dolomite is near 232 μm is shorter than 235 μm of limestone,and thus RBD7 and RBD8 can be employed effectively to identify dolomite and limestone,respectively. Felsic rocks show AlOH and Fe3+ absorption characteristics in the VNIRSWIR region,while the maficultramafic rocks show Fe2+ and Fe,MgOH absorption features,hence the use of different valence state of iron and secondary minerals can distinguish them:ASTER band2/band1 represent Fe3+ distribution,ASTER band2/band1 represent the Fe2+ distribution,RBD6 can estimate the AlOH mineral abundance. Psammitic/pelitic schist containing phengite,chlorite,stilpnomelane,as well as the weathered surface covered by clay minerals,exist characteristic absorption spectrum in the 221 μm(band 6),and has a high reflectance in 165 μm(band 4),while the blueschist/greenschist show high reflectance in the 221 μm(band 6),and it exit low reflectance in 165 μm(band 4),and blueschist/greenschist appear low ASTER band4/band6 ratio.

白云岩的CO2-3吸收谱带中心波长位于232〖KG*3〗μm,与灰岩的CO2-3 吸收谱带中心波长位置235 μm相比,具有向短波长方向移动的特点,据此可以利用RBD7、RBD8分别有效的识别白云岩和灰岩;长英质岩石显示AlOH和Fe3+ VNIRSWIR吸收特征,而基性超基性岩石显示Fe2+和Fe、MgOH特征,利用不同的铁价态和次要矿物可以区分它们:ASTER band2/band1代表了含Fe3+矿物分布信息、ASTER band5/band4代表了含Fe2+矿物分布信息、RBD6可以估计AlOH矿物的丰度;砂质/泥质片岩含较多的多硅白云母、绿泥石、黑硬绿泥石以及风化后表面覆盖的其它粘土矿物,在221 μm(band 6)存在有特征的吸收谱带,并且在165 μm(band 4)具有较高的反射率,而蓝片/绿片岩在221 μm(band 6)反射率较高,不具有明显特征吸收谱带,同时其在165 μm(band 4)反射率较低,因此蓝片/绿片岩ASTER band4/band6 比值低。

In the seedlings time, the content of chlorophyll decreased by the deficiency of B, but the content of chlorophyll in the high efficiency cultivar decreased slowly than that of the low efficiency cultivar. This suggested that the leaves of the high efficiency cultivar can capture more light energy and the photosynthetic rate of the high efficiency cultivar decreased slowly. In the bolting time and blooming time, after two weeks of B deficiency treatment, the content of chlorophyll in the top leaves of the high efficiency cultivar decreased, and in the late time, the content of chlorophyll decreased slowly. But, the content of chlorophyll in the bellow leaves of the two cultivars had little changes. The reason may be that B in the high efficiency cultivar distributed to the propagative organ in the late growth, and the leaves were short of B.

苗期,缺硼导致甘蓝型油菜色素含量降低,且高效品种色素含量下降的幅度小于低效品种,表明营养生长阶段,同等程度的缺硼条件下,高效品种叶片对光能的收集能力以及光合速率下降的程度相对较小;苔期和花期,在两周的缺硼处理后,高效品种上部叶色素含量依然呈下降趋势,但随着生育期的推移,其下降幅度减小;而高效品种下部叶和低效品种叶片含量变化不大,可能是甘蓝型油菜进入生殖生长阶段后,高效品种将硼更多地分配到繁殖器官,而其叶片却承受了相对较大的缺硼胁迫。

The results of Raman, SEM and EPMA tests show that the microstructure defects of the chalcogenide glasses play an important part in their second-order nonlinear optical properties. The glasses show large SNOP because of Sb2S3 microcrystal or the mental antimony in the glasses even before they were polarized. After the electrical/thermal polarized, GeSbS glasses show larger SNOP with the increase and growth of the microcrystal. The glasses show larger SNOP because of the existence of Sb2S3 microcrystal or the mental antimony in the glasses.

通过研究玻璃的拉曼光谱、扫描电镜和电子探针显微分析后发现,硫系玻璃内部的微结构缺陷对其二阶非线性光学性能有显著影响,玻璃体系内存在的Sb2S3微晶或金属锑颗粒能使硫系玻璃在未经极化处理前就具有较大的二阶非线性光学性能;经电场温度场极化处理后,随着微晶的增多和进一步长大,导致GeSbS玻璃具有更高的非线性光学性能;由于Sb2S3微晶或金属锑的存在,导致玻璃具有较高的二阶非线性光学性能。

This paper also makes a experimental study of the regularities of the outstripping machining in aspects of machine tool, cutting tool, cutting conditions and so on, and points out that the outstripping phenomenon occurs on the following conditions: the machine tool with high precision, the PCD cutting tool with small clearance and lay angle, the small installation angle, the small feed rate and the cutting lubricant with good properties, and that the cutting speed and the depth of cut have no effects on the outstripping machining.

本文还从机床、刀具和切削条件等方面对超越性加工的规律进行了实验研究,指出超越性加工现象是在如下条件下产生的:较高精度的机床、后角和刃磨纹理角较小的PCD刀具、较小的安装角和较小的进给量以及冷却润滑性能良好的切削液,而切削速度和切削深度对超越性加工几乎没有影响。

This research discovered six brand relationships after referring to the theory of Fournier(1998):"High intimacy courtships","Low intimacy courtships","Best friendships","High intimacy courtships with memory","Low intimacy courtships without memory", and "committed partnerships with memory". As a result of considering time factor, the brand relationships would not be fixed in one type.

在参考Fournier(1998)之概念后,本篇研究提出球鞋迷与NIKE的品牌关系类型为『亲密程度较高的探索期』、『亲密程度较低的探索期』、『好朋友』、『亲密程度较高的探索期且在乎回忆』、『亲密程度较低的探索期且不在乎回忆』、『在乎回忆的承诺夥伴关系』六种形态,并且加入阶段性时间的考量,即消费者与品牌的关系不会固定在某种品牌关系的类型上。

With 54# half-refined paraffin as raw material,the technology of the second injecting steam of ethane cracking is used for reference in the paraffin cracking process which avoides the coke produced in cracking furnace.

采用优质的54#半精炼石蜡,将乙烯裂解二次注汽技术融合在石蜡裂解技术中,避免了裂解炉结焦;考察了单程裂解、炉前甩残蜡循环裂解、炉后甩残蜡循环裂解在相同的工艺条件下的产品质量、产品收率及存在的问题;验证了新的炉后甩残蜡循环裂解是较好的工艺路线,在较高的水蜡比15%,高温600℃、低烃分压和短停留时间(2s左右)条件下,能生产出高质量的α-烯烃产品(总烯烃质量分数在97%以上,α-烯烃含量为88%)。

The purity of the refolded rhIFN-γ was up to 90%, and high urea gradient length and moderate final urea concentration were favorable for the refolding process. Under optimum conditions, the specific activity of rhIFN-γ was up to 9.75×10^6IU/mg and protein recovery was up to 53.7%.

复性后的重组人γ-干扰素的纯度达90%;较长的脲梯度长度和合适的脲终浓度有利于蛋白质的复性;在较优的实验条件下,复性后的重组人γ-干扰素收率为53.7%,比活达9.75×10^6IU/mg。

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