硫酸根

• Fucoidan was extracted from the brown seaweed by ultrasonic wave assisted extraction . the weight percent of " sulfate and polysaccharide " reached 22 . 49 % and 36 . 97 % , respectively
  摘要研究了超声波辅助提取褐藻糖胶的新工艺，以“硫酸根多糖”质量分数作为产品的主要理化指标，得到优化的提取工艺。硫酸根和多糖质量分数分别达到22 . 49 %和36 . 97 % 。
• Material for producing other barium salts ; used in the cotton reverting dyeing , leather industry , pesticide insecticide , fabric dyeing , mordant , water softener , steam antiscale , paper making , lake toner , extinction of rayon
  氯化钡是制造其它钡盐的原料，盐水精制除硫酸根，棉布还原印染皮革工业农药杀虫剂织物印染媒染剂软水剂锅炉除垢剂造纸色淀颜料人造丝消光。
• In order to combine biomass gasification technology , we have checked the fuel cell ' s impurity tolerance level . the results show that traces of h2s can damage the fuel cell . but co and cm almost have no influence on the performance of the fuel cell
  试验结果表明， ch _ 4 、 co对燃料电池性能没有太大的影响，而是作为燃料参加反应的，而微量的h _ 2s气体即可对电极产生破坏性的作用，电解质中的碳酸根转化为硫酸根，从而使电池失效。
• The result shows that the sources of pollutant mainly include non - point - source , line - source and point - source , with nh ( superscript + subscript 4 ) , no ( superscript - subscript 3 ) , so ( superscript 2 - subscript 4 ) , phenanthrene , bhc , fe and mn mainly from non - point - source , nh ( superscript + subscript 4 ) , hg , cd , cod , phenanthrene , bhc mainly from line - source , and so ( superscript 2 - subscript 4 ) , dimethoate and cn ( superscript - ) from point - source
  研究结果表明，地下水污染源有面源污染、线源污染、点源污染；其中属于面源污染的污染物主要有氨氮、硝氮、硫酸根、菲、六氯环已烷、铁和锰；属于线源污染的污染物主要有氨氮、汞、镉、 cod 、菲、六氯环已烷等；属于点源污染的污染物有硫酸根、乐果、氰化物。
• Sulfur dioxide , emitted by the industrial production and domestic burning fuel , and nitrogen oxides , emitted by the car exhausts and burning petrol are absorbed by the rain , forming larger raindrops , and falling on the ground . this is called acid rain . the main fuel in china is coal , which emits mainly sulfur dioxide , so the acid rain in china is sulfuric acid type of acid rain
  工业生产民用生活燃烧煤炭排放出来的二氧化硫，燃烧石油以及汽车尾气排放出来的氮氧化物，经过云内成雨过程，即水气凝结在硫酸根硝酸根等凝结核上，发生液相氧化反应，形成硫酸雨滴在下降过程中不断合并吸附冲刷其它含酸雨滴和含酸气体，形成较大雨滴，最后降落在地面上，形成了酸雨。
• Sulfur dioxide , emitted by the industrial production and domestic burning fuel , and nitrogen oxides , emitted by the car exhausts and burning petrol are absorbed by the rain , forming larger raindrops , and falling on the ground . this is called acid rain . the main fuel in china is coal , which emits mainly sulfur dioxide , so the acid rain in china is sulfuric acid type of acid rain
  工业生产、民用生活燃烧煤炭排放出来的二氧化硫，燃烧石油以及汽车尾气排放出来的氮氧化物，经过云内成雨过程，即水气凝结在硫酸根、硝酸根等凝结核上，发生液相氧化反应，形成硫酸雨滴在下降过程中不断合并、吸附、冲刷其它含酸雨滴和含酸气体，形成较大雨滴，最后降落在地面上，形成了酸雨。
• The process parameters of preparing nanosized titanium dioxide powders were systematically studied by electrochemical synthesis experiments at room temperature . the rutile phase and anatase phase powders were obtained in the sizes of 9 . 7nm and 9 . 2nm respectively , and the complete crystal powders were formed after calcined at 400 for two hours . in the process of experiments it was observed that the low current density resulted in rutile phase powders , while the addition of little amount of ions of sulfate promoted the formation of anatase phase powders
  在本实验条件下，小的电流密度有利于金红石相的生成，而少量硫酸根离子的引入对生成锐钛矿相粉体有利，调整电流密度大小和引入硫酸根离子的量，可以得金红石型和锐钛矿型的混合混体；研究无定型粉体，锐钛矿相粉体以及金红石型粉体随温度的粒径变化情况时发现，粉体在400以前晶粒长大相对缓慢， 400以后晶粒粗化现象严重。
• Through study of correlative contents of advanced computer cybernetics , artificial intelligence , the domain knowledge and special crop growth mechanism in greenhouse , we present the system of multi - sensor data fusion ( msdf ) based on radial basis function network ( rbf ) to implement on line detection for nutrient - liquid , which may realize multiple components detection on - line , for example no3 - , cl - , ca2 + , ph , ec , nh4 + , k + and so on . the soft sensor ' s mechanism is introduced to overcome the limitations of sensor ' s manufacturing process . to improve the believe - degree of soft sensor ' s result , we analyze soft sensor ' s result by uncertain inferential capacity and combination rule of evidential theory
  本论文通过对计算机技术、控制理论、人工智能技术和设施农业领域知识等相关理论的研究，结合对特定温室蔬菜生长的研究与机理分析，提出了一种基于rbf神经网络的营养液多传感器数据融合( msdf )系统，实现对营养液组分： no _ 3 ~ - 、 cl ~ - 、 ca ~ ( 2 + ) 、 ph 、 ec 、 nh _ 4 ~ +和k ~ +的在线检测；对于由于目前传感器制造工艺的限制而不能在线检测的离子成分如磷酸根和硫酸根，提出了一种基于径向基函数网络的软测量机制，可以有效地实现对营养液中磷酸根和硫酸根成分的实时检测；为了提高软测量结果的可信度，利用d - s证据理论的不确定推理能力和合成公式，结合领域知识对软测量结果进行可信度分析。