考察了精制溶剂组成、剂油比、精制温度、反应时间及静置时间对脱碱氮的影响。
The influences of different composition of refined solvent, ratio of reagent to oil, temperature and time of extraction, time of setting on removal of basic nitrogen compounds were studied.
结果表明，全氮、碱解氮和有机质是黄土丘陵区人工林土壤主要的肥力指标，其含量能更好地反映土壤肥力状况。
The results showed that total nitrogen, available nitrogen and organic matter were the main fertility indicators for soil fertility evaluation in the planted forest land on the Loess Plateau.
土壤碱解氮、速效磷和速效钾等养分的含量是指导科学施肥的重要依据之一。
The content of soil nutrients, especially available nitrogen, phosphorus and potassium is one of the important bases to instruct scientific fertilization.
与各向同性相比，碱解氮在各向异性条件下克里金插值精度提高了42.8%。
Precision of the Kriging interpolation of alkalytic N was improved by 42.8% considering anisotropy of spatial variability.
对设施土壤中长期施有机肥与氮肥对土壤中碱解氮含量的影响进行了研究。
The influence of application of organic and nitrogen fertilizer on the content of alkali hydrolysable N in fertilities soil was studied.
结果表明，海伦黑土全碳、碱解氮和速效钾半变量函数曲线的理论模型符合高斯模型，速效磷的理论最佳模型为球状模型。
The results indicated that the semivariogram of total C , available N and available K were best described by the Gaussian model, while available P was best fitted by the Spherical model.
土壤中的有机质、碱解氮、速效磷、速效钾的含量均比对照增加。
And it could improve the contents of organic matter, alkali - hydrolyzable nitrogen, available phosphorus and potassium in soil.
植物性脲酶抑制剂能提高两种作物的土壤碱解氮含量。
The contents of soil alkali hydrolyzable nitrogen were increased by plant urease inhibitor under two cultivated condition.
土壤速效氮含量偏高是烟叶烟碱含量偏高和多数烟叶样品糖碱比偏低的一个重要原因。
One of the major reason of high nicotine in most samples was the high nitrogen content in soil.
采用等离子轰击扩渗钛、氮、碳技术处理制碱工业设备中的一些易损件，经现场实验，初见成效。
By field experiments, the technique of infiltration of titanium, nitrogen and carbon by plasma bombardment has proved effective in treatment of some wearing parts in soda manufacturing equipment.
与腐殖质组成成分最为密切的农化性状是全氮和碱解氮，其次是速效磷；
It was found that chemical properties closely related to humus compositions were the total and arailable nitrogen, and fast phosphorus.
在陕西眉县选择农田土壤养分含量不同的地块，研究不同含量的有机质，碱解氮、速效磷、速效钾与玉米果穗穗部性状及产量的关系。
In order to study the relationship between yield, maize ear treats and organ matter, N-OH, available P and K, we selected field block with different soil nutrition in Mei county, Shaanxi province.
用非水电位滴定法和元素分析法测出了减渣及其各个组分的酸值、强碱氮含量、弱碱氮含量和非碱氮含量。
The strongly basic, weakly basic and non-basic nitrogen contents and acid values of the residues and their fractions were determined with non-aqueous potentiometric titrations and elementary analysis.
工业试验表明，LBO-16H催化剂有较高的活性稳定性和良好的流化性能，抗碱氮能力强；
The commercial test has shown that LBO-16H catalyst exhibits good performance of hydrothermal stability and fluidity and anti-alkaline nitrogen compound contamination.
追氮处理对土壤全氮没有明显的影响，但对土壤大麦碱解氮的影响比较大。
Topdressing nitrogen treatment had no obvious effect to total nitrogen in soil, but it had a stronger effect to alkalined-nitrogen.
在糠醛精制过程中添加脱氮组分，采用物理抽提与化学反应相结合的方法对模拟基础油进行脱碱氮研究。
The research of furfural refining adding denitrogenation agents by the method of combining physical extraction and chemical reaction has been done.
实验结果表明，大庆焦化柴油经此种方法洗涤后，可脱除碱氮约60%。
The test results show that 60% of the basic nitrogen can be removed from the Daqing coking diesel oil in this way.
从FCC催化剂碱氮中毒机理、含氮化合物的转化等角度分析了含氮化合物对催化裂化的不利影响。
The nitrogen poisoning mechanism of FCC catalysts and the catalytic conversion of nitrogen-containing compounds are summarized.
生姜专用腐植酸复混肥提高了土壤有机质含量，土壤全氮、碱解氮和速效磷含量。
Ginger specific humic acid fertilizer increased the soil organic matter content, total nitrogen content, available nitrogen content, available phosphorus content.
且土壤有机质、全氮、酸水解性总氮、氨基酸态氮和碱解氮含量按照石漠化程度的由轻度到极强度而呈递减趋势，但土壤其他氮素含量并未表现相同的变异规律。
Compared with Karst no-Rocky Desertification soil, the content of soil Organic Matter and Nitrogen in various degrees of Karst Rocky Desertification shows a tendency to drop suddenly.
实践证明利用碱解氧化可降低浓废水中的氨氮、磷化物及盐浓度，对保证后续生物处理系统正常运行有重要作用。
The operation results show that the basic oxidation is effect to decrease the contents of ammonia nitrogen, phosphide and salt. This is very favorable to the following biological treatment.
一种含氮的分子，嘌呤碱或者是嘧啶碱，它们和戊糖还有磷酸一起构成核苷酸，核苷酸是核酸的基本结构单位。
A nitrogenous molecule, either a PYRIMIDINE or a PURINE, that combines with a pentose sugar and phosphoric acid to form a nucleotide, the fundamental unit of nucleic acids.
本文提出嘌呤、嘧啶、呲啶、噻唑、生物碱和氨基酸等类有机化合物中氮的快速微量测定法。
A rapid micromethod for the determination of nitrogen in organic compounds, such as pyridine, pyrimidine, purine, thiazole, alkaloids and amino acids, is described.
席夫碱主要是指含有碳氮双键的亚胺或甲亚胺特性基团的一类有机化合物，早期的研究一般为缩胺类席夫碱。
Schiff base is the Types of organic compounds which contain C-N double bond of the imine or azomethine group characteristics. the early research focus on Amine Schiff base reduction.
第四纪红土土壤全氮含量较高，但是其碱解氮含量比花岗岩母质土壤和紫色砂页岩土壤低。
Quaternary red clay total nitrogen content was highest, but the available nitrogen content was lower than Granite soil and Purple sandy shale soil.
生物碱一般是指植物中除蛋白质、肽类、氨基酸及维生素B外的含氮的有机化合物。
The alkaloids refer to some organic compounds which contain nitrogen atom except proteins, peptides, amino acids and vitamin B.
通过对页岩油氧化、络合，脱出原料油中的碱氮成分和降低总氮含量，从而满足页岩油进行催化裂化的进料要求。
In order to meet the feed requirements for FCC, shale oil was treated by oxidation and complexation, to extrude the basic nitrogen components and to reduce the total nitrogen content of shale oil.
分别考察了反应温度、空速对吸附剂的脱碱氮效果的影响。
The effects of the temperature and LHSV on the removal rate of basic nitrogen were investigated.
AM菌根侵染率与碱解氮呈显著正相关。
There was significantly positive correlation between AM infection ratio and alkaline nitrogen.
结果表明，以碱处理作为预处理可明显提高反硝化速率，碳源脱氮率均在96%以上（树皮除外）。
The results showed that the cellulose carbon source which was pretreated with alkali had better denitrification rate (up to 96%), apart from the wooden skin.
应用推荐