混合污染
- 网络Mixed pollution;composite pollution
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以Pb2+、p硝基苯酚为代表污染物,用实验室模拟法研究了有机膨润土在重金属有机物混合污染体系中的吸附行为。
The sorption behavior for organobentonites to sorb organic pollutants from metal-organic pollutant systems were investigated .
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样品中PAHs的燃烧来源所占的比重较大,呈现出油料燃烧与木材、煤燃烧的混合污染来源特征。
The combustion sources of PAHs in the sample occupied relatively great proportion , showing the source characters of mixed pollution of oil combustion and wood cool combustion .
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工厂大气混合污染对含笑(Micheliafigo(Lour)Spreng)叶片、花的影响
The effect of mixed air pollution from factories on leaves and flowers of Michelia figo ( lour . ) Spreng
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9种绿化树种叶属性对大气混合污染的响应
Response of leaf attributes of 9 greening plants to air pollutions
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低剂量混合污染生态毒理与风险评价研究进展
Research advances in ecotoxicology and risk assessment of chemical mixtures at low doses
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工厂大气混合污染对常绿树叶片组织的影响
The effects of mixed air pollution from factories on structures of evergreen tree leaves
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工厂大气混合污染区观赏植物叶片气孔的研究
A study on leaf stomata of decorative plants in the air pollution area of a factory
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供试土壤重金属混合污染对紫云英各部位细胞的破坏程度为根>叶>茎。
Each located cell of Chinese Milkvetch in the polluted soil sample was damaged in the order root > leaf > stem .
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文中概述了低剂量化学品混合污染生态毒理及风险评价方面的研究进展,主要包括低剂量化学品混合污染诊断的分子毒理研究方法、风险评价方法,并介绍了简单和复杂混合物的风险评价方案。
This paper reviewed the research advances in ecotoxicology and risk assessment of low-dose chemical mixture contamination , with the focus on the molecular toxicological methods and the risk assessment approaches and schemes of simple and complex mixtures .
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对低剂量混合污染生态毒理与风险评价研究的发展动向提出了见解,指出低剂量化学混合物的研究需要寻找敏感终点,引入多学科手段,积累更多的数据,建立完善、统一的评价体系。
Comments were given on the development directions of low-dose chemical mixture research , including the necessity of searching for sensitive endpoints , involving the approaches of other disciplines , increasing data accumulation , and setting up a comprehensive and identical risk assessment system .
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P2P系统中一种基于声誉的混合抗污染机制
Hybrid Anti-pollution Mechanism Based on Reputation in P2P Systems
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辽河水体PAHs为混合型污染,其中以燃烧源为主,辽河附近相关行业的生产污染以及附近居民的生活污染是导致该污染的主要原因。
The PAHs pollution in Liaohe River is mixed ; the main pollution sources is combustion sources ; the production of related industries near the Liao River pollution and domestic pollution of nearby residents is the main reason leading to the contamination .
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河流混合带污染物质二维浓度分布的计算
Evaluation of Two-Dimensional Distribution of Pollutant Concentration in River Mixing Zones
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13种花卉植物受硫氧化物混合气体污染的伤害症状及其抗性表现
Pollution Symptoms of Sulfur Oxides Mixed Gas on 13 Species Ornamental Plants and Their Resisting Performance
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从功能区划看,商业交通混合区污染最重,生活区和工业区空气质量最好;空气污染微生物主要为G+球菌和交链孢,其次还有少量芽孢杆菌和青霉、曲霉、毛霉等。
In commercial and traffic area , the pollution was heaviest , the other areas were good .
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对盐淡水混合海域污染非线性扩散的研究
A Study of Finite Element Method for Nonlinear Pollution Diffusion in Mixing Region of Salt and Fresh Water
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该方法继承了中值滤波和小波变换去噪方法各自的优点,对被混合噪声污染的图像起到了较好的消噪效果。
The method can inherit the advantage of the median filter and wavelet denoising method and effectively reduce the interference of mixed noise .
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最后,通过试验仿真验证,在滤除混合噪声污染的图像方面,本文的滤波算法较优于传统的算法。
Finally , under test simulation , it proves that the filtering algorithm of this article better than the traditional algorithms for mixed noises filtering .
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本文主要研究了如何对受混合噪声污染的图象进行边缘检测,并提出了一种基于排序统计的非线性边缘检测算子。
This paper mainly studies how to detect the edges of noisy images corrupted by kinds of noises . A nonlinear rank-order-based edge detector is presented .
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研究了混合噪声污染图像的恢复算法,重点针对加性高斯噪声和随机值冲击噪声混合的情况进行了分析。
The restoration of images contaminated by mixed noise has been studied . We focus on the problem of additive Gaussian noise plus random-valued impulse noise .
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研究了受混合噪声污染图像的降噪滤波问题,并提出了一种基于均值滤波和加权中值滤波的混合滤波方法。
This paper studies the problem of noise suppression of images corrupted by different kinds of noise . A hybrid filter based on the average filter and the weighted median filter is presented .
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仿真实验表明,对于被高斯、脉冲混合噪声污染的图像,该算法的去噪效果显然比单一的中值滤波和小波去噪法好得多。
Simulation results show that being Gaussian , impulse noise pollution mixed images , the denoising effect of the algorithm is clearly much better than a single median filter or wavelet denoising method .
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群落相似性分析表明,污染土壤与对照土壤中原生动物群落结构极不相似,混合污水污染导致土壤原生动物群落结构发生较大变化。
The similarity index of the community indicates that there is significant different between the pollution and the control , and the pollution led to the great change of the community characteristics of soil protozoa .
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本文研究的内容属于数字图像处理技术中的图像增强技术,研究的目的是针对受到混合噪声污染的图像进行平滑滤波处理。其中噪声主要包括高斯噪声和椒盐噪声。
The contents of this paper are the part of digital image processing technology in image enhancement technology . The study in this paper was aimed at smoothing filtering images influenced by the mixed noise , which include Gaussian noise and salt & pepper noise .
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但是,柴油和汽油烟味混合也产生污染。
But diesel and petrol fumes have a mixture of pollutants .
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基于混合样本的污染线性模型的非参数估计
Non-parametric Estimation in Contaminated Linear Model under Mixing Sample
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大面积维修、铣刨产生的沥青混合料既污染环境,又浪费资源。
Therefore , it is important to regenerate the waste asphalt mixture in order to protect environment and economize resource .
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因此,改性沥青路面使用一定年限后必须进行大面积的维修。维修、铣刨产生的废旧混合料既污染环境,又浪费资源。
Therefore , the modified asphalt pavement must be maintained after years of service . The mailed old mixture would be a kind of pollution of environment and waste of resources .
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根据各监测性原生动物的指示作用、判明了电镀、造纸、机械、毛纺及地面混合污水的污染级别。
According to the indicative role of Protozoa , The author have judged the polluting degree of wastewater of electroplate , paper making , machinery , woolen and the mixed wastewater on surface of ground .
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根据雨量资料确定水文设计条件,并对水环境功能区过渡带进行分析,在此基础上,采用完全混合模式及污染带长度控制模式进行水环境容量测算,得到湛江市地表水环境容量值。
Based on hydrologic design conditions determined from precipitation data and analysis of transition zones of water environment function zones , water environment capacity in Zhanjiang City was calculated using completely mixed model and length control model of pollution belts .