查询词典 kieselguhr

It was found that Pd-Co/active carbon catalyst was the optimal catalyst, and Pd-Co/γ-Al2O3 was also good, but silica and kieselguhr were not proper carriers for the object reaction, because of their stronger surface acidity, which could result in the formation of polymer, jammed the micro pores of catalyst, and then resulted in its deactivation. Addition of Bi, Ce and Cu promoters could not improve the activity of catalyst, but La and Ba promoter could enhance the activity of catalyst apparently, and the Co was the best promoter, especially Co was impregnate in advance. It was attributed to that the pre-impregnated Co may occupy the micro pores of active carbon, and cover some bad functional groups on the surface of catalyst, so that the active and selectivity of catalyst could be enhanced obviously.

研究结果表明，Pd-Co/活性炭催化剂是目标转移加氢反应的最适宜催化剂，Pd-Co/γ-Al203效果也较好，而硅胶和硅藻土由于表面酸性较强，容易造成生成聚合物而堵塞催化剂微孔、使催化剂迅速失活；此外，添加Bi、Ce、Cu等助剂时对活性并无改善作用，而添加La和Ba助剂时可使Pd的催化活性有所提高，效果最好的是Co助剂，尤其是先浸渍Co的Pd-Co/C催化剂，原因是Co占据了活性炭的微孔、覆盖了某些对目标反应不利的官能团，使其活性和选择性都有较大幅度的提高。

The mixed photocatalyst was prepared by sol-gel method using the kieselguhr as active additional substance and characterized by XRD and FTIR.Being a model reaction by ultraviolet radiation,the photocatalytic degradation of methylene blue was investigated with a mixed catalyst.

以硅藻土为固体活性添加物，采用sol-gel方法水解钛酸四丁酯制备溶胶与硅藻土混合合成混杂型光催化剂，样品分别用XRD和FTIR表征；以光催化亚甲基蓝溶液为反应体系，用Uv -vis光谱评价在紫外光照射下活性实验。

Due to adsorption on kieselguhr, lipase became harder to combine with R-2,4-DP and the reaction rate of hydrolysis decreased. On the other hand, it was easier for S-2,4-DP to get close to the active sites of lipase, so the rate increased.

吸附在硅藻土上的脂肪酶，与R-2，4-DP结合更为困难，反应速率下降；而S-2，4-DP接近酶反应中心更加容易，反应速率上升。

The paper indicated the remarkable effects on health caring liquor, which was made from Cynomorium songaricum cleared by clarifying agent s, and combined kieselguhr and gelatin and PVPP.

以锁阳为原料采用硅藻土、明胶和PVPP复合澄清处理配制的保健酒，在204nm处吸光度衡量有效物质含量，520nm处吸光度测定色度，880nm处透光率测定澄清度，结果发现各澄清剂对澄清度、有效物质及稳定性的作用显著，其中明胶与PVPP、硅藻土与明胶复合对稳定性有明显提高，其中明胶1g/L+PVPP1g/L为最佳组合。

"Dynamite By mixing the nitroglycerin with kieselguhr, a porous silica-containing earth, in proportion s that left an essentially dry and granular material, Nobel produced a solid that was resistant to shock but readily explodable by heat or sudden impact."

诺贝尔将硝化甘油和硅藻土按照能形成基本干燥颗粒的比例混合，制成不怕振动、但受热或撞击后易于引爆的固体。

To assure the production of fine wine and excellent wine , we have imported a variety of advantage equipments, including two sets of full automatic bottling production line, one is from KRONES Company of Germany ,which reaches 4000 bottles of bottling per hour and the other is from FIMER Company of Italy ,which reaches 8000 bottles of bottling per hour; the storage capacity ofstainless steel has been more than 10 thousands tons, American white oak barrels 1600, the imported Italy 60000大卡scraped-board instant freezer, kieselguhr filter,and sheet paperboard filter.

现在，公司拥有按国际标准种植的葡萄园5400亩，占地约17000亩，并引进德国KRONES公司和意大利FIMER公司每小时灌装能力达4000瓶和8000瓶的全自动装酒生产线各一条，不锈钢储容量一万余吨，美国白橡木贮酒桶1600个，进口意大利60000大卡刮板式速冻机，硅藻土过滤机，板框式纸板过滤机等一系列为保证出好酒、出精品酒的先进设备。

Then formaldehyde attenuation curve which purification products reduce 5~10 times formaldehyde were tested, which has been tested at 1 m^3 environment deck according to experiment condition of eliminator standard GB/T18801-2002. Moreover, purification quantity per hour was computed by mathematics line integral surface. Results: The purification quantity which formaldehyde has been purificated by kieselguhr material was 1.44 mg/m^2h.

本研究选用了硅藻土和光催化两种原理空气净化材料，以室内空气常见的污染物甲醛为目标，参照国家空气净化器标准(GB/T18801-2002)中的实验条件，在1立方公尺环境测试舱内分别发生室内空气质量标准10倍的甲醛气体，测试净化产品对甲醛衰减曲线，运用数学曲线积分面积的计算模式来计算单位时间净化量。

Economics evaluation:materials(urine glass,test tube,sipper,columnella, kieselguhr),reagent,consumption of instrument(pH meter, GC/MS,carrier gas,heating element,injector,sample injector),service charge, 80.00 yuan totally. Conclusion Compare with the other biology materials,as a study target,urine is easy to get and preserve,otherwise,it also contains several biology information.

共需3小时。经济学评价：取检材材料费(尿杯、试管、吸管、小柱)、检测试剂衍生化试剂、内标、浓盐酸、氢氧化钠、固相萃取材料(硅藻土的费用和仪器的消耗费(pH计、GC/MS、载气、加热器、注射器、微量加样器)，共计八十元左右。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。