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Multi Controller Software Defined Network Link Fault Location based on Tree Decomposition Method 基于树分解方法的多控制器软件网络链路故障定位
Pub Date : 2016-09-01 DOI: 10.1007/978-3-319-60744-3_44
Xing Ye, Xingguo Luo, Yuxue Hu, Min Lin
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引用次数: 0
Research on the Operation of Electric Intelligent Automation Based on Computational Intelligence 基于计算智能的电气智能自动化运行研究
Pub Date : 2016-09-01 DOI: 10.1007/978-3-319-60744-3_49
Yue Wei
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引用次数: 0
Synthesis and Mechanism of Flocculating-Decolorizing Agent PAD used for Polymer-Sulphonated Drilling Wastewater 聚合物磺化钻井废水絮凝脱色剂PAD的合成及机理研究
Pub Date : 2016-04-01 DOI: 10.12783/ISSN.1544-8053/13/2/7
Qingyang Li, Yan Luo, B. Hou, Zixuan Han
Cationic polyacrylamide (PAD) is synthesized and used as decolorizingagent for polymer-sulphonated drilling wastewater. Compared with other widely useddecolorizing agents the wastewater processed by PAD results in a higher decolorizationspeed, lower chromaticity, and less flocs. It also adapts to polymer-sulphonateddrilling wastewater with different salinity. Used for on-site wastewater, it is both efficientand pleietrepie. It reduced the chromaticity to lower than 50 times while the COD isreduced to 100 mg/L and even much lower than 100 mg/L. Meanwhile, the suspendedsolids content is lower than 40 mg/L and the flocs content is very low. Therefore, theprocessing results may greatly help the following treatment. Fourier transform infraredspectroscopy (FTIR) and a scanning electron microscope (SEM) are used to analyzeinteraction between functional groups of PAD with the polymer-sulfonated drilling wastewaterand decolorizing mechanism. The decolorizing mechanism is mainly a union ofionic bonds, charge neutralization, and adsorption bridging between PAD and polymersulphonatedadditives.
合成了阳离子聚丙烯酰胺(PAD),并将其作为聚合物磺化钻井废水的脱色剂。与其他广泛使用的脱色剂相比,PAD处理废水具有脱色速度快、色度低、絮凝体少的特点。它还能适应不同矿化度的聚合物磺化钻井废水。用于现场废水处理,既高效又省时。色度降低50倍以下,COD降低到100mg /L,甚至远低于100mg /L。同时,悬浮物含量低于40 mg/L,絮凝体含量很低。因此,处理结果可能对后续处理有很大帮助。利用傅里叶变换红外光谱(FTIR)和扫描电镜(SEM)分析了聚合物磺化钻井废水与PAD官能团的相互作用及其脱色机理。脱色机理主要是离子键结合、电荷中和和聚磺化添加剂之间的吸附桥接。
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引用次数: 2
Estimation of the Density of Forest Based on Point Cloud Data 基于点云数据的森林密度估计
Pub Date : 2016-03-01 DOI: 10.1166/JCTN.2016.5177
Lianjun Chen
Based on the Analysis of the characteristics of the point cloud data and the difference compared to other three-dimensional data, explore and study the problem of point cloud data accuracy. From these aspects of the point cloud density, filtering methods and the interpolation method, analysis the elevation accuracy of point cloud data under different categories of terrain. The study method used is in case of different terrain category, different points cloud density and different interpolation methods, using the ground checkpoints of different number, analysis the accuracy of point cloud data. Then use the statistical theory, to estimate the density of Chungking. The final results show that this method can effectively estimate the density of the forest, and has high accuracy.
在分析点云数据的特点及其与其他三维数据的差异的基础上,对点云数据的精度问题进行了探讨和研究。从点云密度、滤波方法和插值方法等方面分析了不同地形类别下点云数据的高程精度。采用的研究方法是在不同地形类别、不同点云密度和不同插值方法的情况下,使用不同数量的地面检查点,分析点云数据的精度。然后运用统计理论,对重庆的人口密度进行估算。最终结果表明,该方法能有效估计森林密度,具有较高的精度。
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引用次数: 0
Modified Electro-spun Polyvinyl Alcohol Nanofibers Used as Super Adsorbing Material for Lead Ions in Aqueous Solution 改性电纺聚乙烯醇纳米纤维对水溶液中铅离子的超吸附材料研究
Pub Date : 2016-01-01 DOI: 10.12783/ISSN.1544-8053/13/3/7
N. D. Shooto, D. Wankasi, L. Sikhwivhilu, E. Dikio
Polyvinyl alcohol nanofibers (PVA) and novel polyvinyl alcohol nanofibers incorporated with cobalt metal organic framework (PVA/Co-MOF) sorbents were produced via electrospinning. The produced nanofibers were confirmed by scanning electron microscope (SEM), thermogravimetric analysis (TGA) and Fourier transform infrared (FTIR). SEM images showed consistent and beads free nanofibers were synthesized. FTIR spectra’s exhibited shifts in critical functional groups positions thus it confirmed that there was a given amount of cobalt metal organic frameworks implanted in the incorporated nanofibers. TGA plots also confirmed that PVA/MOF nanofibers exhibited higher decomposition temperatures than that of the pure polyvinyl alcohol nanofibers. Therefore, it affirmed the amalgamation between cobalt metal organic frameworks and polyvinyl alcohol nanofibers. The ability of PVA and novel PVA/Co-MOF nanofibers to remove Pb2+ ions from solution was investigated. The sorption Pb2+ ions on incorporated nanofibers (novel PVA/Co-MO) were two-fold as compared to the pure polyvinyl alcohol nanofibers. The thermodynamic parameters: Gibbs free energy (ΔG°) and apparent enthalpy (ΔH°) showed that the adsorption Pb2+ ions onto the electro-spun nanofibers were spontaneous and exothermic.
采用静电纺丝法制备了聚乙烯醇纳米纤维(PVA)和新型金属钴有机骨架(PVA/Co-MOF)吸附剂聚乙烯醇纳米纤维。通过扫描电镜(SEM)、热重分析(TGA)和傅里叶变换红外(FTIR)对制备的纳米纤维进行了表征。SEM图像显示合成的纳米纤维具有一致性和无珠性。FTIR光谱显示了关键官能团位置的变化,从而证实了在掺入的纳米纤维中植入了一定量的钴金属有机框架。TGA图也证实了PVA/MOF纳米纤维比纯聚乙烯醇纳米纤维具有更高的分解温度。因此,肯定了钴金属有机框架与聚乙烯醇纳米纤维之间的融合。研究了PVA和新型PVA/Co-MOF纳米纤维去除溶液中Pb2+离子的能力。新型PVA/Co-MO纳米纤维对Pb2+离子的吸附量是纯聚乙烯醇纳米纤维的两倍。热力学参数:吉布斯自由能(ΔG°)和表观焓(ΔH°)表明,电纺纳米纤维对Pb2+离子的吸附是自发的、放热的。
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引用次数: 10
Extraction of Aluminum from Coal Fly Ash by Alkali Activation with Microwave Heating 碱活化微波萃取粉煤灰中铝的研究
Pub Date : 2016-01-01 DOI: 10.12783/ISSN.1544-8053/13/2/S26
Nengsheng Liu, Libo Zhang Shixing Wang Shaojun Huang Sufang He Jinhui Peng
Recovering aluminum from coal fly ash (CFA) is a practical option for its value-added utilization. The alkali activation of CFA with Na2CO3 was carried out using two heating methods: the conventional heating (CH) and microwave heating (MWH). Compared to CH, MWH enhanced the atomic diffusion and mass transportation in the CFA-Na2CO3 mixture, accelerated the decomposition of mullite and the formation of the soluble Al-containing materials, thus greatly reducing the sintering temperature and dramatically shortening the activation reaction time. Under the moderate activation condition in MWH (700°C and 20 min), the aluminum extraction could reach 95.52% or more.
从粉煤灰中回收铝是一种实用的铝增值利用方法。采用常规加热(CH)和微波加热(MWH)两种加热方法,对Na2CO3对CFA进行碱活化。与CH相比,MWH增强了CFA-Na2CO3混合物中的原子扩散和质量输运,加速了莫来石的分解和可溶性含al物质的形成,从而大大降低了烧结温度,大大缩短了活化反应时间。在中等活化条件下(700℃,20 min),铝的提取率可达95.52%以上。
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引用次数: 3
Coal Dust Reduce the Rate of Root Growth and Photosynthesis of Five Plant Species in Inner Mongolian Grassland 煤尘对内蒙古草原5种植物根系生长和光合速率的影响
Pub Date : 2016-01-01 DOI: 10.12783/ISSN.1544-8053/13/2/S11
Zhan-Yi Wang, Guo Jian-Ying Wang Cheng-Jie Wang Ming-Jiu Hou Jia
Dust pollution is one of the major environmental problems in opencast mining, which has a significant impact on the surrounding ecosystem. Little is known about the effect of coal dust deposition on plant growth in grasslands, especially on root growth. In this study, we studied how coal dust deposition affected plant growth, with a focus on root growth. Five plants which commonly can be found in Inner Mongolian grassland were selected and cultured with hydroponics methods in greenhouse. Two kind of coal dust (coal powder and granite powder) were sprayed on the plant for 35 days. Root morphology parameters and photosynthesis parameter were determined. We found that among the six measured root morphological characters, root surface area and volume were negatively affected by coal dust in most species. Both coal powder and gangue powder inhibited root growth of four out of five species. Lespedeza davurica was the only species that was not affected by dust pollution. Coal dust can negativly affect the photosynthesis rate. Based on these results, we found that coal dust is harmful for plant growth. The growth of grass with long-term acceptance of coal dust pollution may be threatened, even can not be grow in the contaminated grassland.
粉尘污染是露天矿的主要环境问题之一,对周边生态系统产生重大影响。关于煤尘沉降对草原植物生长的影响,尤其是对根系生长的影响,目前所知甚少。在本研究中,我们研究了煤尘沉积对植物生长的影响,重点研究了根系的生长。选择内蒙古草原常见的5种植物,采用水培法在温室中栽培。两种煤粉(煤粉和花岗石粉)喷在工厂上35天。测定根系形态参数和光合参数。结果表明,在6个测量的根系形态特征中,大多数树种的根表面积和根体积都受到了煤尘的负面影响。煤矸石粉和煤矸石粉对5种植物中4种的根系生长均有抑制作用。胡枝子是唯一不受粉尘污染影响的树种。煤尘对光合速率有负面影响。根据这些结果,我们发现煤尘对植物生长有害。长期接受煤尘污染的牧草生长可能受到威胁,甚至不能在污染的草地上生长。
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引用次数: 4
Modifications of Concentrations of Plant Macronutrient Ions in Digestate from Anaerobic Digestion during Nitrification Processes 厌氧消化过程中植物消化液中常量营养离子浓度的变化
Pub Date : 2016-01-01 DOI: 10.12783/ISSN.1544-8053/13/3/4
K. Takemura, R. Endo, T. Shibuya, Y. Kitaya
The goal of this study was to establish a system for converting digestate from anaerobic digestion processes into liquid fertilizer for soilless culture. Modifications of concentrations of plant macronutrient ions during nitrification processes were investigated with digestate from a simulated municipal organic waste. Concentrations of phosphate and calcium ions in the nitrified digestate increased; the rates of increase were 15.3 mg L–1 d–1 and 17.6 mg L–1 d–1, respectively. Moreover, concentrations of macronutrient ions, except for magnesium, in the nitrified digestate were similar to those in a standard nutrient solution that is commonly applied to soilless culture.
本研究的目的是建立一个将厌氧消化过程中的消化液转化为无土栽培的液体肥料的系统。以模拟城市有机垃圾的消化液为原料,研究了硝化过程中植物常量营养离子浓度的变化。硝化消化液中磷酸盐、钙离子浓度升高;增加率分别为15.3 mg l - 1d - 1和17.6 mg l - 1d - 1。此外,除镁外,硝化消化液中的常量营养离子浓度与通常用于无土培养的标准营养液中的浓度相似。
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引用次数: 5
Effects of Chlorine and Phosphor on Zinc Transformation Behavior During SewageSludge Combustion 氯和磷对污泥燃烧过程中锌转化行为的影响
Pub Date : 2016-01-01 DOI: 10.12783/ISSN.1544-8053/13/2/S7
Yanlong Li, Lei Wang Weiyun Wang Tianhua Yang Rundong Li
Effects of chlorine and phosphor on the transformation of zinc during combustion of sewage sludge (SS) was investigated by two approaches: combustion experiment and thermodynamic simulation. The result of thermodynamic simulation predicted that zinc existed as ZnSO4 (s) below 400°C, while mainly as phosphate in solid phase when the combustion temperature was in the range from 500–1200°C but was released as metallic vapor at higher temperatures (>1300°C). NaZnPO4 and Zn(PO3)2 were experimentally detected by X-ray diffraction in sewage sludge slag (SSA) at 900°C. The volatilization rate of zinc was below 10.00% in all cases, and increased slowly along with the combustion time and temperature. However, this volatilization rate significantly increased with chlorine addition through the formation of metal chloride, while phosphor additives restrained the volatilization of zinc.
采用燃烧实验和热力学模拟两种方法研究了氯和荧光粉对污泥燃烧过程中锌转化的影响。热力学模拟结果表明,在400℃以下,锌以ZnSO4 (s)的形式存在;在500 ~ 1200℃的燃烧温度范围内,锌主要以磷酸盐的形式存在于固相中;在高于1300℃的温度下,锌以金属蒸汽的形式释放。采用x射线衍射法在900℃下对污泥渣(SSA)中的NaZnPO4和Zn(PO3)2进行了检测。锌的挥发率均在10.00%以下,随燃烧时间和温度的增加而缓慢增加。然而,随着氯的加入,通过形成金属氯化物,这一挥发速率显著增加,而荧光粉添加剂则抑制了锌的挥发。
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引用次数: 0
Corrosion Behaviors of Carbon Steel in the Presence ofIron Oxidizing Bacteria Cultured in Reclaimed Water 再生水中培养铁氧化菌对碳钢的腐蚀行为
Pub Date : 2016-01-01 DOI: 10.12783/ISSN.1544-8053/13/2/10
L. Peng, Ping Xu Liping Lu Yajun Zhang
The corrosion behaviors of carbon steel in the presence of iron oxidizingbacteria (IOB) in reclaimed water was investigated mainly using the static hanging piecemethod, electrochemical analysis, SEM, EDAX, FT-IR and XRD. The results showedthat IOB accelerated the corrosion of carbon steel by 50–100% by attaching to its surface;the corrosion potential of the system with IOB was higher (23–36% negative) thanthat without IOB; bacteria grew (biofilm formed) on the surface of carbon steel and pittingcorrosion occurred on the coupons in the reclaimed water inoculated with IOB, whileno pitting corrosion occurred in the system without IOB. The corrosion products mainlyconsisted of FeOOH and CaCO3 whether IOB existed or not but were more complicatedin the presence of IOB.
采用静态挂片法、电化学分析、扫描电镜、电子能谱、红外光谱和x射线衍射等方法研究了再生水中铁氧化菌(IOB)对碳钢的腐蚀行为。结果表明:IOB通过附着在碳钢表面,加速了碳钢的腐蚀50 ~ 100%,有IOB体系的腐蚀电位(负23 ~ 36%)高于无IOB体系;在接种了IOB的中水中,碳钢表面细菌生长(形成生物膜),钢板表面出现点蚀现象,而未接种IOB的中水未出现点蚀现象。无论是否存在IOB,腐蚀产物主要由FeOOH和CaCO3组成,但存在IOB时腐蚀产物更为复杂。
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引用次数: 7
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Journal of Residuals Science & Technology
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