查询词典 degraded

There is high value of Acetamide, N, Ndi ethy in degraded and water-washed crude oils.

胺及酰胺类化合物是一类受控因素多和形成机制复杂的生物标记化合物。

In this paper melt-spun polyurethane fiber waste has been thermo-degraded in triethylene phos-phonate by adding acetamide.

采用升温红外光谱分析法，探讨了熔纺氨纶废丝在升温过程中分子链断裂的机理。

Finally, cell wall degraded and aggregated together, which results in gas spaces formation in a radial direction.3. Aerenchyma formation appeared to be a form of nonapoptotic programmed cell death in the middle of root cortex.

3稻根内通气组织形成的实质很可能是位于内皮层和外皮层之间的皮层细胞发生非凋亡的程序化细胞死亡形成的。

When the concentration of quaternary ammonium salt was less than 120mg/L, or that of hydroxy ethyl cellulose was less than 220mg/L, both of them could be used as nutriment to be degraded by aerobe.

当水样中季铵盐浓度小于120mg/L，羟乙基纤维素浓度小于220mg／L时，它们不具生物毒性，可作为营养物质被微生物利用。

Devine and agronomist James McMurtrey found evidence for this two years ago, in a study showing that naturally occurring soil microbes degraded some soybean stalks more rapidly than others.

迪温和农学家詹姆斯·迈克莫垂两年前已发现了这方面的证据，他们的一项研究表明，自然产生的土壤微生物对豆杆的降解速度快于其它方式。

In another approach, we found GlcNAc was degraded by I2 and ammonia water.

而在这个部份，我们成功合成出氮醣分子骨架。

There were abundant Botryococcus braunii fossils and relevant degraded amorphism in the main hydrocarbon source rocks. So, it is further proved that Botryococcusbraunii was an important composing of alga parent material for the hydrocarbon generation of the Triassic in the Ordos Basin.

主要烃源岩中富含葡萄藻化石及其降解形成的无定形有机质，进一步证明葡萄藻可能是鄂尔多斯盆地三叠系陆相石油藻类母质的重要组成。

However,weak compatibility of PVC and modifiers will attenuant toughening effect,and low molecule modifiers also easily immigrate onto the surface of product, then pollute enviroment.As a result, the performance of product is degraded.

然而，改性剂与PVC的相容性不好将减弱增韧效果，低分子改性剂也易迁移到制品表面而污染环境，并使性能下降。

Wastewater containing titanium pigment was treated by microfiltration membrane, Nanometer titanium can be purified and concentrated by use of microfiltration. Operational conditions were optimized and the model was built. Finally, the amount of wash water was reduced. Based on the above research, the whole set equipment was designed, which can meet the needs in a titanium industry with a capability of 500 ton per year. Backflush and automatic control were used in the equipment, which has been steadily run two years, has been widely adopted in titanium industry. The technology has been widely adopted in titanium industry.In the recent years, whole set equipment of ceramic membrane was increasingly used in the recovery of desired production from fermentation broth in China. A new membrane process integrated with pretreatment of flocculation or coagulation was exploited to recover Inosine. ZrO2 ceramic membrane was used in the work, and the average permeation flux could reach 150L/m2.h under pH value of 3, transmembrane pressure 0.1MPa, CFV 3m/s, and temperature higher than 70C. The recovery ratio of inosine is higher than traditional recovery method, although inosine degraded under acidic and high temperature condition.

实验表明，ZrO_2膜处理肌苷发酵液的合适条件为pH=3、操作压力为0.1MPa、膜面流速3m／s、温度大于70度，此时可以获得平均渗透通量150L／m~2h，但由于酸性条件、高温下肌苷降解，导致肌苷收率有所降低，但仍高于传统肌苷提取方法得到的收率；为进一步提高肌苷得率，缩短提取工序，实验研究了絮凝剂预处理发酵液，解决碱性条件下由于蛋白析出导致膜污染加重的问题，研究表明采用CaCl_2絮凝并调节pH=11，可以获得平均渗透通量为180L／m~2h，肌苷得率大于95％；比较了三种肌苷提取工艺得到的产品质量，采用预处理与陶瓷南京工业大学博士学位论文膜分离结合的除杂工艺得到的粗昔质量与陶瓷膜分离、离子交换及活性炭吸附工艺生产的粗普质量相当，均优于传统的提取工艺；设计了每小时处理12一巧吨肌普发酵液的陶瓷膜成套装置，采用部分内循环的方式降低设备的能耗，简化了肌昔提取方式，提高了产品的收率和得率，由于减少离子交换和活性炭吸附，使得工厂废水排放量降低30一40%，降低酸、碱用量，有利于环境保护。

Organic wastes from past centuries were completely degraded, due to their composition from biogenous material

在过去的世纪里，由于微生物的作用有机废物在堆肥的过程中而被完全分解。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。