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超声波-曝气协同高锰酸钾处理微污染水 被引量:1
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作者 赵玉华 傅金祥 王晓丹 《沈阳建筑大学学报(自然科学版)》 EI CAS 2007年第1期105-108,共4页
目的探索超声波、曝气对高锰酸钾协同氧化水中有机物的作用和协同混凝作用.方法采用4种方法:超声波曝气协同高锰酸钾作用、单纯超声波作用、单纯高锰酸钾作用、超声波协同高锰酸钾作用,进行氧化、混凝沉淀的对比静态试验处理低温微污染... 目的探索超声波、曝气对高锰酸钾协同氧化水中有机物的作用和协同混凝作用.方法采用4种方法:超声波曝气协同高锰酸钾作用、单纯超声波作用、单纯高锰酸钾作用、超声波协同高锰酸钾作用,进行氧化、混凝沉淀的对比静态试验处理低温微污染水.结果超声波曝气协同高锰酸钾氧化和混凝去除有机物效果最好,氧化去除率16.90%,氧化混凝总去除率达48.82%.以浊度和色度去除效果表示的助凝效果,超声波曝气协同高锰酸钾的作用低于高锰酸钾单独氧化.结论超声波曝气协同高锰酸钾氧化处理微污染水,可有效提高有机物去除效果.与单纯混凝比较,超声波曝气协同高锰酸钾氧化处理,可有效提高浊度和色度的去除效果,但与单纯用高锰酸钾氧化比较,由于超声波作用削弱了高锰酸钾的协同混凝作用,浊度和色度的去除效果有所下降. 展开更多
关键词 微污染水 超声波-曝气协同高锰酸钾 氧化 混凝
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Aware Time in Bug Fix—A Novel Automatic Test Case Selection for Prioritization of Version Control
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作者 G. Parkavi D. Jeya Mala 《Circuits and Systems》 2016年第7期1140-1154,共15页
The supreme goal of the Automatic Test case selection techniques is to guarantee systematic coverage, to recognize the usual error forms and to lessen the test of redundancy. It is unfeasible to carry out all the test... The supreme goal of the Automatic Test case selection techniques is to guarantee systematic coverage, to recognize the usual error forms and to lessen the test of redundancy. It is unfeasible to carry out all the test cases consistently. For this reason, the test cases are picked and prioritize it. The major goal of test case prioritization is to prioritize the test case sequence and finds faults as early as possible to improve the efficiency. Regression testing is used to ensure the validity and the enhancement part of the changed software. In this paper, we propose a new path compression technique (PCUA) for both old version and new version of BPEL dataset. In order to analyze the enhancement part of an application and to find an error in an enhancement part of an application, center of the tree has been calculated. Moreover in the comparative analysis, our proposed PCUA- COT technique is compared with the existing XPFG technique in terms of time consuming and error detection in the path of an enhancement part of BPEL dataset. The experimental results have been shown that our proposed work is better than the existing technique in terms of time consuming and error detection. 展开更多
关键词 Automatic Test Cases PRIORITIZATION Regression Testing BPEL Dataset Composite Services pcua Test Tree COT Test Tree
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