可改善
- 与 可改善 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The structural and photocatalytic properties of TiO〓 as well as surface acidity were greatly improved by sulfation. SO〓〓/TiO〓 solid superacid with Hammett constant Ho less than -12.14 was prepared by treating the TiO〓 with 1.0mol. L〓 sulfuric acid solution and then calcining at 450℃ for 3h. When compared to unmodified TiO〓, the SO〓〓/TiO〓 superacid catalyst exhibited higher anatase content, smaller crystal size, higher specific surface area, centralized pore size distribution, and the blue-shifted band edge of uv-vis adsorption spectra. Furthermore, the SO〓〓/TiO〓 superacid also showed excellent reaction activity and stability for CH〓Br photocatalytic decomposition even under the moist reaction conditions. The apparent quantum efficiency of SO〓〓/TiO〓 was 10 times of that of TiO〓 catalyst for the photocatalytic degradation of bromomethane. Therefore, the SO〓〓/TiO〓 superacid catalyst is promising for practical application in environmental remediation.It was found that both L and B acid sites exist on SO〓〓/TiO〓 photocatalyst while only L acid sites on TiO〓 photocatalyst. On the basis of experimental results, the synergistic model of superacidic centers was proposed for SO〓〓/TiO〓 photocatalyst to explain the photocatalytic behavior and the mechanism of superacidifing effects, assuming that the adjacent L and B acid sites induced by SO〓〓 comprise cooperatively the superacidic center on superacid photocatalyst. The group cooperation of the superacidic center could strengthen the surface acidity, increase surface acid sites and the adsorbtion of O〓, promote separation of photogenerated electron-hole pair, enhance the interfacial transfer of charges and reversibility of water adsorption. Consequently the excellent photocatalytic activity, reaction stability and resistibility to humidity of SO〓〓/TiO〓 superacid photocatalyst may attributed to the group cooperated effect of the superacidic center on the photocatalyst.
研究结果表明:SO〓〓与TiO〓表面的结合为螯合式双配位结构;TiO〓光催化剂表面经H〓SO〓浸渍处理后,提高了表面酸性,改善了催化剂结构和光催化性能,当H〓SO〓浸渍浓度为1.0mol.L〓、烧结温度为450℃时,可制得SO〓〓/TiO〓超强酸催化剂(H〓<-12.14),其结构和光催化活性得到明显改善,与TiO〓相比,SO〓〓/TiO〓光催化剂的锐钛矿含量高、晶粒小、BET比表面积大、孔径分布集中、光谱吸收边蓝移,具有优异的光催化氧化活性、稳定性及抗湿性能,光催化降解溴代甲烷的表观量子效率比TiO〓催化剂提高了一个数量级,是一种有实际应用前景的高效光催化剂;由此提出了SO〓〓/TiO〓超强酸催化剂表面集团协同作用的超强酸中心模型,认为在SO〓〓/TiO〓超强酸催化剂表面,由SO〓〓诱导的相邻L酸中心和B酸中心组成了集团协同作用的超强酸中心,其集团协同作用显著地增强了催化剂表面酸性、增大了表面酸量及O〓吸附量、促进了光生电子和空穴的分离及界面电荷转移,具有可逆吸附水的性能,是SO〓〓/TiO〓超强酸催化剂具有优异的光催化氧化活性、很好的活性稳定性及抗湿性能的重要原因。
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The apparent quantum efficiency of SO〓〓/TiO〓 was 10 times of that of TiO〓 catalyst for the photocatalytic degradation of bromomethane. Therefore, the SO〓〓/TiO〓 superacid catalyst is promising for practical application in environmental remediation.It was found that both L and B acid sites exist on SO〓〓/TiO〓 photocatalyst while only L acid sites on TiO〓 photocatalyst. On the basis of experimental results, the synergistic model of superacidic centers was proposed for SO〓〓/TiO〓 photocatalyst to explain the photocatalytic behavior and the mechanism of superacidifing effects, assuming that the adjacent L and B acid sites induced by SO〓〓 comprise cooperatively the superacidic center on superacid photocatalyst. The group cooperation of the superacidic center could strengthen the surface acidity, increase surface acid sites and the adsorbtion of O〓, promote separation of photogenerated electron-hole pair, enhance the interfacial transfer of charges and reversibility of water adsorption. Consequently the excellent photocatalytic activity, reaction stability and resistibility to humidity of SO〓〓/TiO〓 superacid photocatalyst may attributed to the group cooperated effect of the superacidic center on the photocatalyst.
研究结果表明:SO〓〓与TiO〓表面的结合为螯合式双配位结构;TiO〓光催化剂表面经H〓SO〓浸渍处理后,提高了表面酸性,改善了催化剂结构和光催化性能,当H〓SO〓浸渍浓度为1.0mol.L〓、烧结温度为450℃时,可制得SO〓〓/TiO〓超强酸催化剂(H〓<-12.14),其结构和光催化活性得到明显改善,与TiO〓相比,SO〓〓/TiO〓光催化剂的锐钛矿含量高、晶粒小、BET比表面积大、孔径分布集中、光谱吸收边蓝移,具有优异的光催化氧化活性、稳定性及抗湿性能,光催化降解溴代甲烷的表观量子效率比TiO〓催化剂提高了一个数量级,是一种有实际应用前景的高效光催化剂;由此提出了SO〓〓/TiO〓超强酸催化剂表面集团协同作用的超强酸中心模型,认为在SO〓〓/TiO〓超强酸催化剂表面,由SO〓〓诱导的相邻L酸中心和B酸中心组成了集团协同作用的超强酸中心,其集团协同作用显著地增强了催化剂表面酸性、增大了表面酸量及O〓吸附量、促进了光生电子和空穴的分离及界面电荷转移,具有可逆吸附水的性能,是SO〓〓/TiO〓超强酸催化剂具有优异的光催化氧化活性、很好的活性稳定性及抗湿性能的重要原因。
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In 1993, professor Michael Hammer of MIT and James champy co-author the book of Reengineering the corporation ----- a Manifesto For Business Revolution, put forward the concept of BPR. BPR's central thoughts is to redesign the business process, produces the valuable result, decrease cost, improve the quality, speed and service, finally improve the performance of enterprises from the customers' need taking the business process as reforming objective.
业务流程再造(Business Process Reengineering ――BPR)概念的提出是1993年,美国麻省理工学院迈可·哈默教授与詹姆斯·钱辟合著的《再造公司――企业革命的宣言》(Reengineering The Corporation ――A Manifesto For Business Revolution)一书,其概念的核心含义就是指从顾客的需求出发,以企业流程为改造对象,对企业流程进行根本性的思考和分析,通过对企业流程构成要素的重新组合,以此实现企业业务流程彻底的重新设计,产生出更为有价值的结果,在成本、产品质量、服务和速度等方面获得戏剧化的改善,从而获得企业绩效的巨大改善。
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As the active additive used in recharge able battery,Cobaltous oxide can improve crystal struchure of active substance,raise using rate upto 10%,shorten oxidiaing process of nickel electric pole,reduce internal stress of pole plate.
近年来氧化亚钴材料作为二次电池材料中的有效添加剂,可使电池中活性物质晶型得到改善,利用率提高10%以上,同时提高了镍电极的氧化过程,减少了极片内应力,使充放电效率得到改善,解决了使用放电不足问题,延长电池的使用寿命。
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RESULTS:The automatic drug dispensing system could raise the speed and accuracy of drug dispensing, improve the health condition,decrease medicine pollution,decurtate waiting time of nurse, improve the quality of pharmaceutical service.
结果:全自动口服药品摆药机可提高摆药的速度和准确性,改善卫生状况,减少药品污染,缩短护士领药时间,改善药学服务质量。
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Outcomes were considered excellent if the patient had complete symptomatic resolution of epiphora and dacryocystitis and normal tear drainage on examination, good if the patient had only minimal residual symptoms or a minimally delayed dye disappearance test, fair if the patient had moderate residual symptoms or delayed tear drainage, and poor if there was no improvement.
若患者的症状如溢泪和泪囊炎完全改善以及检查发现泪液排泄正常,被认为疗效极佳;若患者仅有轻微的遗留症状或染料排泄轻微延迟被认为疗效好;若患者有中度的遗留症状或染料排泄延迟,被认为疗效尚可;若没有任何改善,被认为疗效差。
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Based on the forementioned conclusion this paper provide a fresh air control strategy, which can be used in Xian city and can satisfy needs of both fresh air distribution and energy saving.
论文还讨论了新风分配的改善问题,发现南向单独分区在不增加系统能耗的情况下对新风分配有一定改善作用;征对VAV空调系统各种常用的新风控制方式:固定新风量、固定新风比和变新风比等,通过试算模拟了其可保证新风分配时的能耗情况。
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Regarding the environment facility, the implement and teaching of resource recycling can be put into effect. Water Permeable pavement benefit can be strengthened to meet schools' need, zoological pool can be the best place for students and teachers, leaves compost has got effect in solving rubbish and teaching, frowziness, glare, echo have been improved to satisfactory result in inside environment.
环境设施面」部分,资源回收再利用实施执行过程及教学可达具体成效、透水性铺面效益显著既有校园需求大可加强辅导推广、生态景观水池成为教学及学生课余最佳场所、落叶堆肥设施在解决垃圾量及教学上已有具体成效、室内环境方面在实施闷热、眩光、回音改善可达满意效果。
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Results: All patients anemia were improved, the value of hemoglobulin in venofor group increased 19.2g per month, and was higher than that of Niferex (14.8g/month)(P.01). The dose of Epo in venofer group was lower than the Niferex group.
结果:用Epo后,2组患者贫血均改善,多糖铁复合物组Hb每月上升14.8 g/L,Epo用量比蔗糖铁组多19.5%;而蔗糖铁组可迅速改善CRF透析患者贫血,Hb每月上升19.2 g/L,Epo用量较小,与多糖铁复合物组比较差异有显著性(P.01)。
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Based on biological experiments, mango glycoside is used as raw material; under the condition with phenol and hydroiodic acid, carbon-carbon bonds are broken to produce the crude product of mango aglycone; the crude product is separated and purified through silica gel column chromatography so that the mango aglycone is separated; the yield rate reaches 12 percent, the purity is higher than 95 percent, and the reproduction performance is good; the IGTT of C57BL/6 normal mice is effectively improved with the norathyriol; and simultaneously the quantity of insulin secretion induced by glucose in vivo for the C57BL/6 normal mice can be improved with the norathyriol.
通过生物学实验证明,本发明所涉及的以芒果苷为原料,在苯酚和氢碘酸条件下,使得碳-碳键断裂,制备得到芒果苷元粗品,再通过硅胶柱层析分离纯化得到芒果苷元的方法使得其产率可达12%、纯度大于95%,且重现性好;norathyriol可使C57BL/6正常小鼠IGTT有明显改善;同时norathyriol可提高C57BL/6正常小鼠体内葡萄糖诱导的胰岛素分泌量。
- 推荐网络例句
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But we don't care about Battlegrounds.
但我们并不在乎沙场中的显露。
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Ah! don't mention it, the butcher's shop is a horror.
啊!不用提了。提到肉,真是糟透了。
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Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.
Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。