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一种实用型温湿度控制仪的设计 被引量:7
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作者 冀捐灶 史军勇 杨宝强 《计算机测量与控制》 CSCD 2004年第7期695-697,共3页
为了有效地控制电力变电装置内部的温湿度,防止漏电现象发生,介绍了一种基于新型单片机设计的实用型温湿度控制仪。首先介绍了该控制仪的硬件系统组成、工作原理、各部分关键电路以及提高系统可靠性硬件方面采取的措施等;然后介绍了其... 为了有效地控制电力变电装置内部的温湿度,防止漏电现象发生,介绍了一种基于新型单片机设计的实用型温湿度控制仪。首先介绍了该控制仪的硬件系统组成、工作原理、各部分关键电路以及提高系统可靠性硬件方面采取的措施等;然后介绍了其软件系统,针对温湿度变化的连续和平缓特点,重点讨论了分段定值平滑数字滤波技术,提高了系统的抗干扰性。该温湿度控制仪结构紧凑,简单实用,长期实际运行表明,稳定可靠,具有一定推广应用价值。 展开更多
关键词 实用型温湿控制仪 设计 单片机 抗干扰性 可靠性 电力系统
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康德思想的实用维度及其限度
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作者 舒远招 《云南大学学报(社会科学版)》 CSSCI 北大核心 2011年第1期11-19,95,共9页
认为康德的思想缺乏实用的维度,这是对康德的一大误解。康德自觉意识到了他的思想活动不能撇开他个人生存的实用意图,也离不开其他人乃至整个人类的普遍福利,他也正是从个人乃至人类的福利入手,来界定"实用的"一词的。他把自... 认为康德的思想缺乏实用的维度,这是对康德的一大误解。康德自觉意识到了他的思想活动不能撇开他个人生存的实用意图,也离不开其他人乃至整个人类的普遍福利,他也正是从个人乃至人类的福利入手,来界定"实用的"一词的。他把自己对于真理的全部探求,都指向了人类的普遍利益。他的自然地理学、地震研究、通灵术批判、实用人类学等等,都清晰地显示了他的思想的实用维度。他的理论哲学、实践哲学和判断力理论乃至社会历史哲学,都没有遗忘理论的"用处",他始终明确肯定"实用准则"是指导人们实际行动的主要准则之一。但是,康德最终还是为自己思想的实用维度设置了限制,他把一切实用的行动准则都当作有条件的"假言命令",认为它们应该受无条件的"定言命令"的约束。对康德而言,遵循实用准则尽管有可能通向幸福,但惟有坚守定言命令才能体现人的自由、人格与尊严。 展开更多
关键词 康德 康德的思想 实用 经验
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弦环的实用全终端可靠度的一种计算方法(英文)
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作者 张昭 黄晓晖 《新疆大学学报(理工版)》 2002年第1期42-45,共4页
给出了弦环的实用全终端可靠度的一种计算方法 。
关键词 弦环 实用全终端可靠 分解定理 2约化 平行约化 多项式时间 计算方法 正则图
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实用气候度设计研究及其应用
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作者 裴卓嘉 《干旱区资源与环境》 CSCD 1990年第2期105-115,共11页
长期以来在有关应用气象研究中,气象定量分析一直是一个相当困难而又亟待进一步研究解决的重要问题之一。本文设计研究的实用气候度定量计算方法,是指从宏观的角度对天气气候利弊影响状况进行整体性分析的一种全新的思路和方法,作者在... 长期以来在有关应用气象研究中,气象定量分析一直是一个相当困难而又亟待进一步研究解决的重要问题之一。本文设计研究的实用气候度定量计算方法,是指从宏观的角度对天气气候利弊影响状况进行整体性分析的一种全新的思路和方法,作者在认识气象要素若干宏观特征的基础上,应用最优的《制约逻辑》理论原理,提出了在天气气候综合制约演变过程中具有相对权重意义的因子天气度Z,因子灾害度Z’,单纯气候度A=[1-1/2(|Z-Z|+Z’)]和实用气候度Aα=[(1+α)-1/2(|Z-Z|+Z’)]的定量化新概念,并设计出一整套计算方法,所得结果十分简明,在凡涉及气象利弊宏观影响的有关应用与研究工作中本方法具有一般的方法论意义,可不受时间和地域的限制而加以推广应用。 展开更多
关键词 实用气候 设计 计算方法 气候
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高校基层党支部组织生活方式的创新研究
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作者 胡佳佳 李建新 戴婧婧 《党史博采(下)》 2022年第2期31-33,共3页
高校基层党支部组织生活的创新开展是高校党建和思想政治工作的重要组成。在严格规范执行基层党的组织生活制度的前提下尝试创新高校基层党支部组织生活的方式方法,从组织生活的形式、场地、内容和制度上进行"六创新",促进教... 高校基层党支部组织生活的创新开展是高校党建和思想政治工作的重要组成。在严格规范执行基层党的组织生活制度的前提下尝试创新高校基层党支部组织生活的方式方法,从组织生活的形式、场地、内容和制度上进行"六创新",促进教师教学、科研、社会服务合理分流,促使党建联盟和组织生活经典案例库的建设,以提升组织生活的丰富度、实用度和参与度。 展开更多
关键词 基层党支部 方式创新 实用度 党员 组织生活
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基于分类优化的ASO应用方法
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作者 张英培 《中国电子商务》 2014年第23期41-43,共3页
本文针对如何提升移动应用商店中的APP下载量,并取得较高排名的问题,提出基于分类优化的ASO应用方法.该方法首先根据实用度、个性化以及使用频率三个维度,将移动应用商店中的APP在三维坐标系中表示出来;然后观察APP分布趋势,对每个典型... 本文针对如何提升移动应用商店中的APP下载量,并取得较高排名的问题,提出基于分类优化的ASO应用方法.该方法首先根据实用度、个性化以及使用频率三个维度,将移动应用商店中的APP在三维坐标系中表示出来;然后观察APP分布趋势,对每个典型APP的特点进行归纳总结;最后,根据提出的分类优化方法,针对三维立体图中APP特点趋势,提出具有针对性的ASO方法的实施,在一定程度上对APP的ASO优化具有指导性意义. 展开更多
关键词 分类 搜索优化 实用度 个性化 使用频率
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水泥颗粒形貌的表征及其研究方法 被引量:16
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作者 陈云波 徐培涛 《水泥》 CAS 2003年第2期17-19,共3页
在众多表示颗粒形貌的特征参数中,实用球形度和圆形度可以用来表征水泥颗粒群接近球或圆的程度,并且能够方便地用现有的检测方法和仪器进行量化。比较实用球形度和圆形度的2种统计方法———图像分析仪法和人工法,前者可以在较短的时间... 在众多表示颗粒形貌的特征参数中,实用球形度和圆形度可以用来表征水泥颗粒群接近球或圆的程度,并且能够方便地用现有的检测方法和仪器进行量化。比较实用球形度和圆形度的2种统计方法———图像分析仪法和人工法,前者可以在较短的时间内统计多张照片,因而统计结果更具代表性,而后者的统计结果误差相对较大,而且比较费时,但是可以统计颗粒相互粘连较为严重的扫描电镜照片。 展开更多
关键词 水泥 颗粒形貌 实用球形 圆形 图像分析仪法 人工法
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EPS电源蓄电池在线荷电状态估计 被引量:2
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作者 周航 孙绍国 谷明 《建筑电气》 2019年第8期84-88,共5页
为了提高应急电源(Emergency Power Supply,EPS)蓄电池的荷电状态(state of charge,SOC)估计精度,提出一种EPS电源蓄电池在线荷电状态估计方法。采用一种参数优化的多核相关向量机(relevance vector machine,RVM)建立EPS蓄电池SOC估计模... 为了提高应急电源(Emergency Power Supply,EPS)蓄电池的荷电状态(state of charge,SOC)估计精度,提出一种EPS电源蓄电池在线荷电状态估计方法。采用一种参数优化的多核相关向量机(relevance vector machine,RVM)建立EPS蓄电池SOC估计模型,可以实现对EPS荷电状态的实时监测,为蓄电池的充放电管理提供重要依据,保证EPS电源系统的安全稳定运行。 展开更多
关键词 应急电源 蓄电池 荷电状态 在线估计 多核相关向量机 充放电管理 实用度函数 SOC估计误差
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高职高专英语技能教学初探
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作者 苏岚科 《神州》 2011年第8期54-54,共1页
高职高专英语教育的发展,对于我们教师也提出了明确的要求,听说读写译五项技能的教学有了新的教学方法与手段,本文就技能教学的实际进行剖析,从而能够达到更好的因材施教,提高教学水平。
关键词 高职高专英语教学 以应用为主 实用
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Applying real time seismic monitoring technology for slope stability assessment—An Indian opencast coal mine perspective 被引量:10
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作者 Vinoth S. Ajay Kumar L. 《International Journal of Mining Science and Technology》 SCIE EI 2014年第1期75-80,共6页
This paper outlines the results obtained from real time microseismic monitoring of an opencast coal mine in South India.The objective of the study is to investigate the stress changes within the rockmass along the slo... This paper outlines the results obtained from real time microseismic monitoring of an opencast coal mine in South India.The objective of the study is to investigate the stress changes within the rockmass along the slope due to underground mine development operation and their impact on the stability of the highwall slope.The installed microseismic systems recorded the seismic triggerings down toà2 moment magnitude.In general,most of the events recorded during the monitoring period are weak in seismic energy.The study adopts a simple and more reliable tool to characterize the seismically active zone for assessing the stability of the highwall in real time.The impact of underground working on the slope is studied on the basis of the seismic event impact contours and seismic clusters.During the monitoring period,it is observed that the intensity of the overall microseismic activity along the slope due to the mine development operations did not cause any adverse impact on the highwall stability. 展开更多
关键词 Seismic monitoring Induced seismicity Seismic clusters Slope stability Opencast mining
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基于“任务驱动”下的初中英语口语教学研究 被引量:2
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作者 李核金 《科技信息》 2009年第16期274-274,共1页
我国初中英语教学应全面贯彻"实用为主,够用为度"的教学指导方针,但目前初中英语教学模式不能满足这一指导方针的需要。基于"任务驱动"下的新的教学模式分体现了以学生为中心以及注重学生合作学习的教学理念,能有... 我国初中英语教学应全面贯彻"实用为主,够用为度"的教学指导方针,但目前初中英语教学模式不能满足这一指导方针的需要。基于"任务驱动"下的新的教学模式分体现了以学生为中心以及注重学生合作学习的教学理念,能有效培养学生在社会大环境下自我发现、自我探究、自我总结的能力及协作运用语言的能力,从而达到"Learn to use,learn to use"的最终教学目标。此种教学方式可在初中英语口语教学中广泛应用。 展开更多
关键词 任务驱动 实用为主 够用为 教学结构 可操作性 实效性
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AN IMPROVED GN ALGORITHM OF NETWORK COMMUNITY DETECTION METHOD
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作者 WU Guodong SONG Fugen 《International English Education Research》 2017年第4期75-77,共3页
.GN algorithm has high classification accuracy on community detection, but its time complexity is too high. In large scale network, the algorithm is lack of practical values. This paper puts forward an improved GN alg... .GN algorithm has high classification accuracy on community detection, but its time complexity is too high. In large scale network, the algorithm is lack of practical values. This paper puts forward an improved GN algorithm. The algorithm firstly get the network center nodes set, then use the shortest paths between center nodes and other nodes to calculate the edge betweenness, and then use incremental module degree as the algorithm terminates standard. Experiments show that, the new algorithm not only ensures accuracy of network community division, but also greatly reduced the time complexity, and improves the efficiency of community division. 展开更多
关键词 Complex network Community detection Center node Improved GN algorithm
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Effects of thermal treatment on physical and mechanical characteristics of coal rock 被引量:15
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作者 YIN Tu-bing WANG Pin +2 位作者 LI Xi-bing SHU Rong-hua YE Zhou-yuan 《Journal of Central South University》 SCIE EI CAS CSCD 2016年第9期2336-2345,共10页
To study the physical and mechanical properties of coal rock after treatment at different temperatures under impact loading, dynamic compression experiments were conducted by using a split Hopkinson pressure bar(SHPB)... To study the physical and mechanical properties of coal rock after treatment at different temperatures under impact loading, dynamic compression experiments were conducted by using a split Hopkinson pressure bar(SHPB). The stress–strain curves of specimens under impact loading were obtained, and then four indexes affected by temperature were analyzed in the experiment: the longitudinal wave velocity, elastic modulus, peak stress and peak strain. Among these indexes, the elastic modulus was utilized to express the specimens' damage characteristics. The results show that the stress–strain curves under impact loading lack the stage of micro-fissure closure and the slope of the elastic deformation stage is higher than that under static loading. Due to the dynamic loading effect, the peak stress increases while peak strain decreases. The dynamic mechanical properties of coal rock show obvious temperature effects. The longitudinal wave velocity, elastic modulus and peak stress all decrease to different extents with increasing temperature, while the peak strain increases continuously. During the whole heating process, the thermal damage value continues to increase linearly, which indicates that the internal structure of coal rock is gradually damaged by high temperature. 展开更多
关键词 rock mechanical property split Hopkinson pressure bar (SHPB) high temperature coal rock dynamic mechanical property
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New method of designing anti-slide piles——the strength reduction FEM 被引量:3
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作者 Zheng Yingren Zhao Shanyi +1 位作者 Lei Wenjie Tang Xiaosong 《Engineering Sciences》 EI 2010年第3期2-11,共10页
At present,the thrust of an anti-slide pile can be worked out with some calculation methods. However,the resistance in front of the pile,the distributions of resistance and thrust,and appropriate pile length cannot be... At present,the thrust of an anti-slide pile can be worked out with some calculation methods. However,the resistance in front of the pile,the distributions of resistance and thrust,and appropriate pile length cannot be easily obtained. In this paper,the authors applied the strength-reduction finite element method (FEM) to several design cases of anti-slide piles. Using this method,it is possible to take the pile-soil interactions into consideration,obtain reasonable resistance in front of pile and the distributions of thrust and resistance,and reasonable lengths of anti-slide piles. In particular,the thrust and resistance imposed on embedded anti-slide piles can be calculated and composite anti-slide pile structures such as anchored piles and braced piles can be optimized. It is proved through the calculation examples that this method is more reliable and economical in the design of anti-slide pile. 展开更多
关键词 strength reduction method finite element method anti-slide piles sub-grade reaction embedded piles
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Application of Compactness Detection to Complicated Concrete-Filled Steel Tube by Ultrasonic Method 被引量:1
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作者 杨建江 王飞 +1 位作者 陆苏亮 王川 《Transactions of Tianjin University》 EI CAS 2014年第2期126-132,共7页
An example of using ultrasonic method to detect the compactness of complicated concrete-filled steel tube in certain high-rise building was discussed in this study.Because of the particularity of the complicated concr... An example of using ultrasonic method to detect the compactness of complicated concrete-filled steel tube in certain high-rise building was discussed in this study.Because of the particularity of the complicated concrete-filled steel tubular column,the plane detection method and embedded sounding pipe method were adopted in the process of effectively detecting the column.According to the results of the plane detection method and embedded sounding pipe method,the cementing status of steel tube and concrete can be concluded,which cannot be judged by the hammering method in the rectangular steel tube-reinforced concrete. 展开更多
关键词 ultrasonic method concrete-filled steel tube plane detection method embedded sounding pipe method COMPACTNESS
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Allelopathic interactions between Prorocentrum micans and Skeletonema costatum or Karenia mikimotoi in laboratory cultures 被引量:6
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作者 冀晓青 韩笑天 +3 位作者 郑立 杨佰娟 俞志明 邹景忠 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 2011年第4期840-848,共9页
Algal allelopathy is an ecological/physiological phenomenon that has focused attention on the interactions among algae and the production of algal toxins. We investigated the allelopathic interactions between the dino... Algal allelopathy is an ecological/physiological phenomenon that has focused attention on the interactions among algae and the production of algal toxins. We investigated the allelopathic interactions between the dinoflagellate genus Prorocentrum micans and diatom genus Skeletonema costatum and between P. micans and dinoflagellate genus Karenia mikimotoi using bi-algal cultures. Because the effects were species-specific and size-dependent, we evaluated the effect of different initial densities. At low densities of P. mieans and high densities of S. costatum inoculated into the same medium, the growth of R rnieans was weakly restrained, whereas the growth of S. costatum was significantly suppressed. S. costatum and K. mikimotoi were strongly inhibited by P. micans, in both the bi-algal cultures and enriched filtrates. Direct cell-to-cell contact was not necessary to gain a competitive advantage, thus, our results suggest that P. micans inhibited the growth of S. costatum and K. mikimotoi by the release of allelochemical(s). Last, a mathematical model was used to simulate growth and interactions between P. micans and S. eostatum and between P. micans and K. mikimotoi in bi-algal cultures. 展开更多
关键词 ALLELOPATHY Prorocentrum micans Skeletonema costatum Karenia mikimotoi bi-algal culture enriched filtrate culture
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What Do Emotions Do? A Pragmatist Approach to the Role of Emotions in Media Events
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作者 Jocelyne Arquembourg 《Journal of Philosophy Study》 2015年第8期395-403,共9页
Expressions of emotion in the media, especially in the context of news, are often criticized as promoting irrational attitudes. For supporters of this kind of criticism, rather than addressing such emotional sensitivi... Expressions of emotion in the media, especially in the context of news, are often criticized as promoting irrational attitudes. For supporters of this kind of criticism, rather than addressing such emotional sensitivity, journalism should be objective, appealing to the rationality of the public. Anger, indignation, enthusiasm, and expressions of joy or sadness should not have part in public debates. From this perspective, rationality and emotions are opposed, the former being fundamental for the constitution of the public sphere, while the latter falls into the category of inner impulses. While Kant denied any sort of rationality to emotions, Gustave Lebon attributed emotional attitudes to crowds rather than to a public. In a crowd, emotions spread like an epidemic through a kind of contagion. The present study is based on a contrasting perspective and focuses on the rationality of emotions', whether in philosophy (Nussbaum), sociology (Paperman, Aranguren 2014; Livet 2002), or psychology (Krant-Gruber). Oddly enough, these different approaches do not seem to have affected media studies where, belief in the irrationality of emotions, still dominates analyses of media coverage of natural or industrial catastrophes, wars, or terrorist attacks. Instead of considering the nature of emotions, or the question of whether they actually corrupt the objectivity of journalism and the supposed rationality of public debates, I will seek to develop a pragmatist approach to the question of what, emotions actually do. In fact, the idea of emotions spreading contagiously had been disputed since the 18th century when Adam Smith asked how a British newspaper reader could be affected by an earthquake happening in China. Suffering from a distance, says Adam Smith, is not the product of some kind of contagion. If we want to understand this sort of feeling, we have to imagine an inner moral spectator inside of every human being Oddly enough, Adam Smith considers emotions to be moral feelings. To feel horrified by the consequences of an earthquake, or to feel indignant about the death of innocent victims, are moral attitudes. In this respect, they are rational, but the feelings of indignation or horror also include bodily reactions. We scream, put our hands over our mouths; we blush, have tears in our eyes; we feel our heartbeat accelerate etc. These bodily reactions seem impulsive and entirely subjective, but to what extent can we say that they are rational or moral? 展开更多
关键词 EMOTION pragmatist approach MEDIA
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Laboratory Application of Laser Grain-Size Analyzer in Determining Suspended Sediment Concentration
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作者 LIU Xiao FENG Xiuli +1 位作者 LIU Jie LIN Lin 《Journal of Ocean University of China》 SCIE CAS 2014年第3期375-380,共6页
Suspended sediment concentration(SSC) is an important parameter in marine sedimentology. With the development of technology, many acoustic and optical devices, such as the Laser In-Situ Scattering and Transmissometry,... Suspended sediment concentration(SSC) is an important parameter in marine sedimentology. With the development of technology, many acoustic and optical devices, such as the Laser In-Situ Scattering and Transmissometry, have been designed to measure in situ SSC and grain size distribution. But due to fund or other restrictions, many experiments were only conducted in laboratory, using an indoor laser grain-size analyzer and gravimetric method to measure grain size distribution and concentration, respectively. In this study the laboratory experiment is simplified by omitting the tiring step of gravimetric method. The connections between SSC and other parameters(obscuration, D50 and sorting index) were investigated based on 124 surface sediment samples collected from different offshore areas. A new method is developed for determining SSC in laboratory using a laser grain-size analyzer. 展开更多
关键词 suspended sediment concentration laser grain-size analyzer grain size parameters OBSCURATION
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A study on Cr(Ⅵ)reduction from aqueous solutions by bauxite
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作者 M.D.TURAN H.S.ALTUNDOGAN 《Journal of Central South University》 SCIE EI CAS 2014年第5期1961-1967,共7页
The reduction of Cr(Ⅵ) in aqueous solution by using bauxite ore was investigated.Experimental results for Cr(Ⅵ)reduction in aqueous solution depending on some factors such as time,sulfuric acid amount,bauxite do... The reduction of Cr(Ⅵ) in aqueous solution by using bauxite ore was investigated.Experimental results for Cr(Ⅵ)reduction in aqueous solution depending on some factors such as time,sulfuric acid amount,bauxite dosage,initial Cr(Ⅵ)concentration,formic acid concentration,daylight and temperature were presented.The obtained results show that sulfuric acid amount,bauxite dosage and initial Cr(Ⅵ) concentration of solution are most effective parameters on the reduction process.Also,it has been found that the 60 g/L of bauxite dosage is sufficient to reduce up to 100% of Cr(Ⅵ) from acidic solution under the condition of low initial Cr(Ⅵ) mass concentrations such as 10 mg/L.The reduction reaction is completed within 30 min at 25 ℃ under the experimental conditions:bauxite dosage of 60 g/L,amount of sulfuric acid 40-60 stoichiometric and initial mass concentration of Cr(Ⅵ),10 mg/L.It was determined that reduction percentage is decreasing with increasing initial Cr(Ⅵ) concentration.The chemical oxygen demand of bauxite ore was found to be 26 mg COD/g. 展开更多
关键词 bauxite ore CHROMIUM REDUCTION sulfitric acid
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Variation of Phosphorus Bioavailability in the Re-suspended Sediments 被引量:1
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作者 李大鹏 黄勇 +1 位作者 李伟光 袁砚 《Journal of Donghua University(English Edition)》 EI CAS 2009年第6期586-591,共6页
The variation of phosphorus (P) bioavailability in terms of water soluble P (WSP ), readily desorbable P (RDP), algal available P (AAP), and NaHCo3 extracting P (Olsen-P) in the re-suspended sediments was in... The variation of phosphorus (P) bioavailability in terms of water soluble P (WSP ), readily desorbable P (RDP), algal available P (AAP), and NaHCo3 extracting P (Olsen-P) in the re-suspended sediments was investigated in laboratory experiments, in which the waters and sediments were taken from campus canal. The results indicate that sediment re-suspension can promote the migration, of soluble reactive P (SRP) from overlying water to sediments. The contents of AAP and Olsen-P in re-suspended sediments reduced obviously, whereas the values of the sediments in the control increased slightly, compared with the initial state, indicating that the P bioavailability in the sediments could be rcduced evidently due to sediment re-suspension. The content and characteristics of iron-bound P (BD-P) significantly affect the formation of AAP. The formation of OlservP has close relationship with the contents of BD-P, almninium-botmd P (AI-P), and organic P (NaOH-nrP). 展开更多
关键词 BIOAVAILABILITY potential mobility PHOSPHORUS TRANSFORMATION sediment re-suspension
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