氧化钙

The results show that: the fillers of SiO_2 based investment consist of SiO_2,Al_2O_3 and MgO,and the binder is NH_4H_2PO_4;for SiO_2 based investment,the bulk density and the compression strength decrease,the apparent porosity and the thermal expansion increase,when the specimens are heated to 900 ℃;the fil.

结果表明：氧化硅系包埋料的骨料是氧化硅、氧化铝、氧化镁，结合剂为磷酸二氢铵，其900℃煅烧后显气孔率增加，体积密度下降，耐压强度降低，热膨胀增大；氧化铝系包埋料的骨料是氧化铝和氧化镁，结合剂为磷酸二氢铵，其900℃烧后显气孔率增加，体积密度下降，热膨胀变化不大；氧化镁系包埋料的骨料是氧化镁和氧化铝，结合剂是铝酸钙水泥，其900℃烧后耐压强度明显降低，热膨胀明显增大。

Because of the chief equipment and technic are mostly imported from the abroad presently. It is necessary to lucubrate oxidation mechanism of calcium sulfite and the main influencing factors in the oxidation of calcium sulfite, which are valuable for accelerating the oxidation Rate, consummating academic basic of lime stone-gypsum FGD and optimizing technical process A simulate equipment has been designed based on the theory of geometrical comparability which is reduced scale in geometric proportion to the 300MW capacity.

目前我国的湿式石灰石–石膏法设备和技术均从国外引进，因此深入研究脱硫过程中亚硫酸钙的氧化机制和影响亚硫酸钙氧化的主要因素，对提高氧化速度、完善湿式石灰石–石膏法脱硫技术的理论基础、优化烟气脱硫工艺过程具有重要的价值。

For example, white stains have MgO, hydrotalcid, alumian, containingborates calcium、 dionide, zinc oxide, arsenic, antimony oxide, silver, cerium compounds; red stains have basic lead chromate, lead kind of uranium yellow and oxymatrine of lead uranium, uranium, ND salt Cassius A50, red iron oxide and molysite CD、CU、 se reaumuria, electrolyic, MN, and so on.

例如，不黑色着色剂有氧化镁、碳酸镁、氧化铝、硼酸钙、氧化钛、氧化锌、砷酸、氧化锑、金属银、铈化合物；白色着色剂有碱式铬酸铅、铅种铀黄和氧化铀、铀酸铅、钕盐卡修斯紫金、赤氧化铁和铁盐、镉硒赤、氧化锰、锰等。

The results indicate that the Ca and P ions are incorporated into the anodized alumium oxide during the anodization process, and the incorporated Ca and P are reacted to be calcium phosphate after hydrothermal treatment. The calcium phosphate grows from the holes of AAO and covers the surface of AAO layer.

结果表明：在阳极氧化过程中，钙、磷元素嵌入阳极氧化铝膜，并经水热处理反应原位生成钙磷陶瓷；钙磷陶瓷晶体从Al2O3孔洞长出并覆盖于多孔氧化膜的表面；最终获得的钙磷生物陶瓷/多孔Al2O3复合涂层具有纳米网状、多孔的结构特征。

Calcium, blood calcium decreased, the brain caused by increased nerve excitability plant, resulting in baby night waking, night terrors, night irritability, sleep; baby should be given calcium and vitamin D and more sun: A, calcium: elemental calcium daily 200-300mg (1) Composite Calcium Granule: 2-3 packets a day (each contains calcium 100mg)(2) the activity of calcium granules: 4-6 packets per day (calcium per tablet 50mg) B, fill D : daily 400-800IU (1) concentrated cod liver oil drops: 2-4 drops per day (2) vitamin D2 candy: the daily 400-800IU (3) vitamin D3 injections: once a month, 20-300000 IU attention these objects must be a doctor's prescription, prescribed application. C, to the sun to vitamin D, ultraviolet radiation to the skin 7 - dehydrocholesterol into vitamin D3, to help calcium absorption, could be a day outdoors on the sun for half an hour each afternoon. 3, bile is a yellow pigment bilirubin, was it yellow staining and faeces, after bilirubin by oxidation into biliverdin, thus making green manure, the manure discharge encountered in diapers in the air oxygen, so that oxidation of bilirubin biliverdin, so that the surface of green manure.

缺钙、血钙降低，引起大脑植物性神经兴奋性增高，导致孩子夜醒、夜惊、夜间烦躁不安，睡不安稳；应给孩子补钙和维生素D并多晒太阳：A、补钙：每日元素钙200-300mg(1)复合钙冲剂：每日2-3包(每包含钙100mg)(2)活性钙冲剂：每日4-6包(每片含钙50mg)B、补D：每日400-800IU(1)浓缩鱼肝油滴剂：每日2-4滴(2)维生素D2糖丸：每日400-800IU(3)维生素D3针剂：每月一次，20-30万IU注意上述物均须医生处方，遵医嘱应用。C、向太阳要维生素D，紫外线要将皮下7-脱氢胆固醇转变成维生素D3，帮助钙的吸收，可每天户外上下午各晒半小时。3、胆汁中胆红素是一种黄色色素，被它染色及粪便呈黄色，胆红素经氧化过后变为胆绿素，从而使粪便呈绿色，排出的粪便在尿布中遇到空气中的氧，胆红素使氧化成胆绿素，使粪便的表面呈绿色。

Application of calcium peroxide has become wider and wider.It was not only used in the fields of rice direct sowing,edible fungus production,soil improvement,aquiculture,wastewater treatment,chemical production,and air purification etc.,but also it has been used as food and feed additive,fruit and vegetable preservative,assisting agent for gold extraction by cyanidation and so on.

过氧化钙可用于水稻直播、食用菌生产、土壤改良、水产养殖、污水处理、化工生产与空气净化等领域，可用作食品和饲料添加剂、水果和蔬菜保鲜剂、氰化法提金助剂等，有着越来越广泛的用途。

In order to solve the problem of tar in pyrolysis process of coal to produce high quality fuel gas, a novel method of using CaO as catalyst in freeboard of fluidized bed to mildly convert the tar into gas has been proposed and the influence of CaO on tar cracking in the freeboard of fluidized bed at different temperatures is investigated.

为了解决在煤热解制取高质量燃料气过程中焦油带来的问题，提出了在流化床稀相段空间利用CaO作催化剂将焦油温和地转化为气体的新方法，考察了不同温度下氧化钙对煤热解生成焦油催化裂解行为的影响。

CaO and kaolin were mixed with SiO_2 and then sintered according to /[SiO_2] mole ratio 1 or 2,respectively.The components and reaction rates of the sinters were detected and then leached in NaOH Na_2CO_3 NaAlO_2 solutions to know the reaction properties.

研究了氧化钙和高岭土以/[SiO_2]摩尔比1和2分别和二氧化硅混合烧结时烧结料的组成和烧结反应率，并将烧结料用NaOH、Na_2CO_3、NaAl_4溶液进行溶出，考查其反应特性。

The surface modification mechanism was following: the agglutination between particles and the adherence between particle and roller road decreased by adding silicoorganic compound during crushing. Meanwhile, water absorption of calcuim oxide would be reduced.

粉碎过程中改性剂的作用机理为：超粉碎过程中添加有机硅有利于阻止粉碎颗粒之间的团聚和颗粒与辊道之间的粘附，同时降低了氧化钙吸收水消解作用。

In addition, this study also investigated the CO2 capture capability of CaO powders derived from oyster shells and reagent-grade CaCO3 under deionized water hydration.

除此之外，本研究亦将牡蛎壳与商用碳酸钙所转换得的氧化钙粉末进行水合处理，发现到可大幅度增加吸收量与吸收速率，并利用吸收剂的结晶结构解释其对吸收效率的影响。

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。