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Search Results: 1 - 10 of 334916 matches for " <br>周思佳 "
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Photoelectrocatalysis and degradation of Tracid Bordeaux by TiO2 film coating electrode
TiO2镀膜电极光电催化降解酸性紫红

Zhou Siji,Zou Hua,Dai Lin,<br>,邹华,戴琳
环境工程学报 , 2013,
Abstract: Photoelectrocatalysis reactor was designed and assembled to treat Tracid Bordeaux wastewater, titanium plate coated with TiO2 thin film by sol-gel method was used as electrodes. The synergy of photo-electric reaction and the effects of initial dyes concentration, voltage, pH and electrolyte concentration on decoloration were discussed. The result shows that photochemical catalysis and electrochemical oxidation have cooperative effects. The decoloring rates of ultraviolet light catalysis and electro-catalysis to tracid bordeaux were 44.27% and 13.12%, respectively. However, the decoloring rate of photoelectrocatalysis (ultraviolet light plus voltage of 10 V) reached as high as 77.18%. The low initial concentration, moderate voltage and alkaline pH led to higher decoloring rate of tracid bordeaux wastewater. The electrolyte was beneficial to decoloration. The higher the electrolyte concentration was, the higher decoloring rate would be.
TiO2镀膜电极光电催化降解酸性紫红
,邹华,戴琳
环境工程学报 , 2013,
Abstract: 采用溶胶-凝胶法在钛片上涂覆TiO2薄膜为电极,自行设计组装光电催化反应器,对酸性紫红染料废水进行光电脱色处理,探讨了光电反应的协同性并研究了初始染料浓度、电压、pH和电解质浓度对脱色反应的影响。结果表明,光化学催化和电化学氧化具有协同效应,单一紫外光催化和单一电催化酸性紫红的脱色率分别为44.27%和13.12%,而光电催化(紫外、外加电压10V)的脱色率达到77.18%。初始浓度较低、电压适中、pH偏碱性时,酸性紫红废水脱色率较高;电解质对脱色反应有促进作用,且浓度越高,酸性紫红脱色率越高。
Study on algorithm for concern degree of Web pages
网页关注度的一种计算算法研究

LI Zhi-fu,FANG Yong,ZHOU An-min,YOU Si-jia,CAO Yu,ZHONG Mi,YAN Tie-lin,<br>李志福,方勇,安民,,曹雨,钟蜜,阎铁麟
计算机应用研究 , 2009,
Abstract: This paper developed a kind of algorithm for analyzing information,which was used for computing concern degree of Web pages.By computing concern degrees of Web pages,it presented users' needs sufficiently.For different needs of different users,the algorithm could make the sane Web page present different concern degree.Then described detail of the algorithm,and gave an example and an implementation.A test is executed,and the result is well,which proves the validity of the algorithm.
甲砜霉素与氟苯尼考的辐照降解机理研究
,吴明红,
化学学报 , 2011,
Abstract: 对甲砜霉素(THA)和氟苯尼考(FLO)的辐照降解进行了瞬态产物和稳态产物的分析.利用脉冲辐解技术研究了THA/FLO水溶液在各种条件下与?OH,和?H的反应机理,研究表明THA/FLO与?OH反应途径与pH有关中性条件下主要发生苯环上的加成反应,其速率常数分别为为1.09×108L?mol-1?s-1(THA)和3.14×108L?mol-1?s-1(FLO)|碱性条件下,则断裂产物在?OH催化下的去OH-反应.的进攻导致THA/FLO脱Cl-和F-,该反应中性条件比碱性条件更易进行.THA/FLO与?H发生加成反应,生成较稳定的氢加成产物,反应速率分别为3.52×107L?mol-1?s-1(THA)和2.43×108L?mol-1?s-1(FLO).利用GC/MS对电子束辐照的稳态产物分析,得出自由基反应生成的小分子碎片.结合瞬态反应过程,得出THA/FLO降解途径.
口腔齿槽冰帽在下颌阻生智齿拔除术后的疗效评价
Efficacy of Cold Alveolar Gum for Postoperative Reaction after Extraction of Impacted Mandibular Third Molar Surgery.

王子, 黄谢山, 韩静欣, , 龙静, ,, 邓明珠<br>WANG Zi-jia, HUANG Xie-shan, HAN Jing-xin, ZHOU Wu, LONG Jing, ZHOU Ting, CHEN Si-yan, DENG Ming-zhu.
- , 2018, DOI: 10.13701/j.cnki.kqyxyj.2018.10.024
Abstract: 摘要 目的: 探讨齿槽医用冰帽应用于下颌阻生智齿拔除术后的临床疗效。方法: 选取60例下颌阻生智齿患者,随机分为实验组与对照组,术前测量张口度、眼外眦至同侧耳屏中点距离、口角至同侧耳屏中点距离、颏前点至同侧耳根距离,手术采用切开、翻瓣、去骨及分冠手术步骤。术后实验组术区齿槽医用冰帽咬敷,对照组纱布压迫止血,冰袋外敷。术后48 h再次测量以上各面部标记点间距离并记录术后疼痛VAS评分,对比齿槽医用冰帽和冰袋的临床效果。结果: 两组患者在术后疼痛、面部肿胀方面有统计学差异(P<0.05),在张口度方面无统计学差异(P>0.05)。结论: 齿槽医用冰帽对下颌阻生智齿术后反应有疗效,优于面部冰敷
陆相湖盆大型重力流发育的成因机制及其优质储层特征研究:以歧口凹陷沙河街组一段为例
Large Gravity Flow Deposits in the Member 1 of Paleogene Shahejie Formation,Qikou Sag, Bohai Bay Basin

王华,立宏, 韩国猛,,黄传炎,,巩天浩,张悦辉,潘凯<br>Wang Hua , Zhou Lihong , Han Guomeng , Chen Si , Huang Chuanyan , Zhou Lijia ,Gong Tianhao , Zhang Yuehui , Pan Kai
地球科学(中国地质大学学报) , 2018, DOI: 10.3799/dqkx.2018.329
Abstract: 陆相重力流沉积是现今油气勘探领域的研究热点.发育在歧口凹陷滨海斜坡古近系沙河街组一段的大型重力流沉积体(沉积范围达到1 700 km2)具有多物源供给、长距离搬运、多级断坡传输、沿路沉积的发育过程与沉积机理特征.以渤海湾盆地富烃凹陷-歧口凹陷的大型重力流为研究对象,在构造-高精度层序地层格架下,以“源-渠-汇”的整体过程为思路,(1)研究多物源的形成、持续供给及匹配关系;(2)分析古地貌(断控陡坡带+多级断阶坡折带)的演化,及其对沉积物搬运、堆积、发育过程的控制作用;(3)针对该重力流具有大规模、多期次的沉积特征,解剖其平面展布及空间分布、沉积模式、时空演化规律;(4)综合探讨陆相重力流沉积体的成因机制、控制因素.综上可知:(1)歧口凹陷大型陆相重力流沉积体发育受多个物源体系的影响与控制,湖盆中心的重力流沉积体与供给物源之间有明确的匹配关系.在古近系沙一段沉积时期,滨海斜坡沉积区主要受北部燕山物源区的大神堂物源、茶淀物源以及西部沧县隆起物源区的葛沽物源和小站物源4个物源共同供给,持续的物源供给使得在歧口凹陷的陆相湖盆中,发育了大规模的重力流沉积体.(2)沙一段同沉积期,歧口凹陷滨海斜坡周缘整个古地貌格局主要表现为断控陡坡带与多级断阶坡折带复合体,断控陡坡带主要发育于滨海斜坡北部,多级断阶带主要呈近东西向发育于斜坡西部.这些断坡带既是物源水下搬运通道又是沉积物堆积的可容纳空间分布区,再加上这些断坡带差异性的持续沉降,对砂分散体系和相带展布具有关键的控制作用.(3)歧口凹陷沙一段重力流沉积过程机制主要表现为重力滑塌沉积、砂质碎屑流、泥质碎屑流、浊流等多种成因,具有横向连片,纵向叠置的沉积样式.
Continental gravity flow deposition is a research hotspot in the field of oil and gas exploration.The large scale gravity flow deposits (up to 1 700 km2) that developed in the Member 1 of Shahejie Formation (Paleogene) in the Binhai slope area in the Qikou Sag shows the sedimentary characters of multiple sediment sources, long distance and multi-fault transport, and preservation along the transfer path during the sedimentary processes. This study focus on the gravity flow deposits in the oil-rich Qikou Sag in Bohai Bay Basin. Under the sequence stratigraphy framework, the sourcetransport path-sink processes has been discussed. The aim of this study is to ① illuminate the formation of the multiple sources, the configuration relationship between different sources, and the origin of continuous sediment supply. ② analyze the controlling and evolution of the paleogeomorphology (faultcontrolling steep slope and multi-step fault slope), sediment transport, the sedimentary develop mechanism in processes. ③ focus on the distributions, sedimentary patterns and space evolution of the large scale multistages gravity flow deposits. ④ discuss the formation mechanism and controlling factors of the gravity flow in Qikou Sag. The conclusions include: ① the gravity flow was controlled by multiple sources. During the Member 1 of Shahejie Formation, the Binhai slope was supplied by sources from four different areas that include: Dashentang source from northern Yanshan Mountain, Chadian sources, Gegu and Xiaozhan sources from western Cangxian Uplift. The continuous sediment supply allows the large scale gravity flow to be formed in the lacustrine basin. ② the paleogeomorphology of the Member 1 of Shahejie Formation in the Qikou Sag is the complex of fault-controlling steep slope and multi-step fault slope. The faultcontrolling steep slope is developed in the northern
蒙特卡洛模拟金属Ag的饱和蒸汽压

, 耿珺<br> , 耿 珺
- , 2015,
Abstract: 采用金属银的嵌入原子模型(EAM),利用蒙特卡洛方法(MC)方法,在正则系综(NVT)系综下,计算了银从1 700 K到2 300 K的饱和蒸气压,并和实验所测得的蒸汽压计算公式进行了对比.计算结果表明所有温度下的模拟结果与实验测量的饱和蒸汽压误差均在30%以内,验证了EAM势能可以定性符合银的饱和蒸气压,也证明了银的EAM模型可以拓展到气态的模拟.
三维虚拟地球中移动对象的时空数据组织方法
Spatio-Temporal Data Organization Method of Moving Objects in 3D Virtual Globes

陈静,<br>CHEN Jing, YUAN Sijia
- , 2017, DOI: 10.13203/j.whugis20140519
Abstract: 针对三维虚拟地球中实时GIS数据组织、管理与动态可视化的要求,设计了三维虚拟地球中移动对象的时空数据组织方法。提出了基于HR-tree扩展的时空索引方法,实现了对虚拟地球中移动对象的检索与查询,并基于三维虚拟地球平台对本文方法进行了实验,结果验证了本文方法的有效性和可行性
Binding Numbers of Graphs and the Existence of [a,b]-Factors
图的联结数与[a,b]-因子存在性

ZHOU Sizhong,<br>
系统科学与数学 , 2009,
Abstract: Let $G$ be a graph of order $n$, and let $a,b,m_1,m_2$ be nonnegative integers with $1\leq a${\rm bind}(G)>\frac{(a+b-1)(n-1)}{bn-(a+b)-2(m_1+m_2)+2}$ and $n\geq\frac{(b-1)(a+b-1)(a+b-2)+2b(m_1+m_2)}{b(b-1)}$. Furthermore, it is shown that the result in this paper is sharp.
C60单晶的电导和介电特性
(杨国权,(王刚,(温维,(维亚,(陆坤权,(解
科学通报 , 1996,
Abstract: C_(60)是近年来发现的碳的第三种稳定的同素异形体,由于其独特的性质,愈来愈受到人们的关注,并开展了大量的研究工作,例如:C_(60)的制备、C_(60)的结构研究、掺杂C_(60)超导体和C_(60)单晶的生长等。当然还有很多问题需要深入研究。但是,由于迄今所生长的C_(60)单晶尺寸都不够大,在一定程度上限制了某些工作的开展,例如C_(60)单晶的电学和光学特性等的研究。 我们曾专门设计、安装了双炉单温度梯度生长炉、双炉双温度梯度生长炉和“提拉”汽相法生长C_(60)单晶的装置,生长出高质量大尺寸的C_(60)单晶,其线度在2mm左右。这就为C_(60)单晶特性的深入研究提供了条件。此外,我们还专门设计制造了一个特殊的电测量装置,以便进行电导和介电特性的研究。
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