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Search Results: 1 - 10 of 271086 matches for " <br>冯春辉 "
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Preparation and performance test of composite clinoptilolite filter materials
复合沸石滤料的制备及其性能测试

Yu Yanzhen,Zhao Chunhui,Feng Yan,<br>于衍真,春辉,
环境工程学报 , 2010,
Abstract: 以活化后的天然斜发沸石为主要原料,添加粘合剂、成孔剂等制备出孔隙率高、比表面积大的球型复合沸石滤料。通过正交实验得到最优工艺组合条件为ω沸石粉∶ω粘合剂∶ω成孔剂=55%∶35%∶10%,活化温度为150℃,活化时间为3 h。制备的成品堆积密度为674 kg/m3,筒压强度为4.32 MPa,显气孔率59.02%。较陶粒相比,该滤料用于曝气生物滤池在挂膜启动与稳定运行阶段,均具有较高的氨氮去除效果,且挂膜微生物量高,更适宜作为曝气生物滤池的载体。
Database System Design of Warehouse Management Based on UML
基于UML的仓库管理数据库系统设计

ZHANG Yi-zhi,FENG Chun-hui,<br>张裔智,春辉
计算机科学 , 2008,
Abstract: In this paper the database system analysis method of warehouse management based on UML is discussed. On the platform of object oriented UML,demand model and design model as a whole have been analyzed and designed. With the assistance of Power Designer,which serves as a tool of CASE based on UML,database system design is realized.
基于听觉小波包自适应语音增强方法
春辉,
华南师范大学学报(自然科学版) , 2013,
Abstract: 建立了听觉模型的小波包,考察了传统小波分析的软硬阈值与Donoho提出的小波阈值之间的关系,提出了一种新的自适应动态阈值的计算方法.实验证明,该算法不仅较好地解决了音乐噪声的问题,而且其语音增强效果也比传统的算法具有更高的清晰度和可懂度.
Investigation on producing water permeable bricks with sludge
污泥渗水砖的制备研究

Yu Yanzhen,Guan Lipan,Zhao Chunhui,Feng Yan,<br>于衍真,管丽攀,春辉,
环境工程学报 , 2008,
Abstract: 结合压制成型和传统的烧结砖工艺,实验以城市生活污泥、黄河淤泥、煤矸石及砂为原料,制备渗水铺地砖。通过正交试验得到最优工艺参数为w(黄河淤泥)∶ww(煤矸石)∶w(污泥)∶w(砂)=33%∶22%∶15%∶30%、成型压力为20 MPa、烧结温度为1 100℃、保温时间为1.5 h,骨料砂的粒径为1~2 mm。制备的成品抗压强度为21.8 MPa,渗水系数为1.03×10-2 cm/s。并对成型压力及烧结温度对渗水砖抗压强度及渗水系数的影响进行了讨论。
基于uml的仓库管理数据库系统设计
张裔智 春辉
计算机科学 , 2008,
Abstract: 本文主要针对基于uml的仓库管理数据库系统分析方法进行研究。在基于面向对象uml的平台上,以仓库管理为研究对象,对其需求模型和总体设计模型进行了分析设计,并结合基于uml建模语言的case工具powerdesigner进行进一步的辅助分析,最终实现了数据库系统的设计。
复合沸石滤料的制备及其性能测试
于衍真,春辉,
环境工程学报 , 2010,
Abstract: 以活化后的天然斜发沸石为主要原料,添加粘合剂、成孔剂等制备出孔隙率高、比表面积大的球型复合沸石滤料。通过正交实验得到最优工艺组合条件为ω沸石粉∶ω粘合剂∶ω成孔剂=55%∶35%∶10%,活化温度为150℃,活化时间为3h。制备的成品堆积密度为674kg/m3,筒压强度为4.32MPa,显气孔率59.02%。较陶粒相比,该滤料用于曝气生物滤池在挂膜启动与稳定运行阶段,均具有较高的氨氮去除效果,且挂膜微生物量高,更适宜作为曝气生物滤池的载体。
Traditional Chinese Medicine and Its Legal Protection
中医药传统知识法律保护的内在需求

Liu Chunhui,<br>刘春辉
世界科学技术-中医药现代化 , 2008,
Abstract: Traditional Chinese medicine is a traditional knowledge.However,it stands out as a special knowledge,in addi- tion to the common aspects it shares with other traditional knowledge.In this context,protection measures shall be de- signed to meet its inherent needs.To discuss the legal protection of TCM expertise,it is absolutely necessary to exam- ine its inherent protection needs for the first place,including attributes,traits and its future development.
Photochemical degradation of phthalates:effects of UV and hydrogen peroxide
邻苯二甲酸酯的光降解研究

LIU Pengyan,FENG Guantao,LIU Jinwei,LIU Qingxue,WEN Chunhui,YANG Hongbo,<br>刘芃岩,关涛,刘金巍,刘庆学,春辉,杨红博
环境科学学报 , 2009,
Abstract: To understand the degradation and the environmental fate of phthalic acid esters (PAEs) in water, the UV photodegradation process of dimethyl, diethyl and dibutyl phthalates (DMP, DEP, DBP) in aqueous solution was investigated. The degradation intermediates were identified with GC/MS. A plausible mechanism is suggested for the degradation of these compounds. The results showed that the degradation of the three tested phthalates follows first-order kinetics. More than 90% of DMP was degraded when a 10.0 mg·L-1 solution of DMP was irradiated under UV for 45 minutes in the presence of 20.0 mg·L-1 hydrogen peroxide. The effects of initial concentration of the phthalates and hydrogen peroxide,the time of UV radiation and pH on the degradation process are reported in order to provide the necessary basis for practical application of this method.
A preliminary report of hyphomycetes from sediment of southern Yellow Sea
南黄海沉积物中的丝孢菌初报

FENG Chun-Hui,LI Chang-Lin,PENG Yan-Ting,SUN Kai-Ming,LI Wei,<br>春辉,李长林,彭艳婷,孙开明,李伟
菌物学报 , 2013,
Abstract: 从南黄海采集沉积物样品19份,共分离到74个丝孢菌分离物。除22个青霉属菌株未鉴定至种外,其余经鉴定属于18属20种。其中包括1个中国新记录属Devriesia;2个中国新记录种Devriesia pseudoamericana、Scedosporium dehoogii;其余18种为中国已知种。对中国新记录属种进行形态学描述和基于ITS序列的分子生物学分析,对18个国内已报道种则只作分布和生境的引证。所有菌种均保存在中国海洋大学海洋生物标本室(OUCMB)。
麦田土壤水分noaa/avhrr遥感监测方法研究
陈怀亮 定原 邹春辉
遥感技术与研究 , 1998,
Abstract: 本文立足于河南省农业遥感业务服务实际,在系统研究麦田土壤水分noaa/avhrr遥感监测理论、模型、资料处理、指标及应用技术的基础上,针对这一领域中存在的问题,在gis技术的支持下,重点探讨了不同土壤质地和风速对遥感干旱监测的影响、用遥感表层土壤水分耦合深层土壤水分的方法与模型、用单时相遥感资料反演土壤水分的方法等,并最终建立了河南省冬小麦干旱遥感监测应用服务系统。
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