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Journal of Environmental Sciences 2016年第3期28卷 16-23页

作者： Siwei Peng Weijun Zhang Jie He Xiaofang Yang Dongsheng Wang guisheng zeng Key Laboratory of Jiangxi Province for Ecological Diagnosis-Remediation and Pollution Control Nanchang Hangkong University State Key Laboratory of Environmental Aquatic Chemistry Research Center for Eco-Environmental SciencesChinese Academy of Sciences

Fenton oxidation is generally inhibited in the presence of a high concentration of chloride *** study investigated the feasibility of using benzoquinone（BQ） and hydroxylamine hydrochloride（HA） as Fenton enhancers for the removal of glycerin from saline water under ambient temperature by accelerating the ferric *** was found that organics removal was not obviously affected by chloride ions of low concentration（less than 0.1 mol/L）,while the mineralization rate was strongly inhibited in the presence of a large amount of chloride *** addition,ferric hydrolysis-precipitation was significantly alleviated in the presence of HA and BQ,and HA was more effective in reducing ferric ions into ferrous ions than HA,while the H_2O_2 decomposition rate was higher in the BQ-Fenton *** spin resonance analysis revealed that OH production was reduced in high salinity conditions,while it was enhanced after the addition of HA and BQ（especially HA）.This study provided a possible solution to control and alleviate the inhibitory effect of chloride ions on the Fenton process for organics removal.

关键词： Saline solution Fenton oxidation Hydroxyl radicals Benzoquinone Hydroxylamine hydrochloride

响应曲面法优化磁铁矿-石英体系瓷球磨矿参数

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过程工程学报 2024年第6期24卷 726-733页

作者：童佳琪田景坤王奕涵姚鑫李哲阳谢峰吴彩斌曾桂生徐今冬江西理工大学资源与环境工程学院江西赣州341000 战略金属矿产资源低碳加工与利用江西省重点实验室江西赣州341000 成都利君实业股份有限公司四川成都610000

寻求替代钢球作细磨介质以提高磨矿效果是选矿厂的追求。本工作以瓷球为磨矿介质对磁铁矿-石英体系矿石进行磨矿试验,利用响应曲面法研究了瓷球球径、充填率及磨矿浓度对磨矿产品平均粒度的影响及其交互作用的显著性。结果表明,充填率... 详细信息

寻求替代钢球作细磨介质以提高磨矿效果是选矿厂的追求。本工作以瓷球为磨矿介质对磁铁矿-石英体系矿石进行磨矿试验,利用响应曲面法研究了瓷球球径、充填率及磨矿浓度对磨矿产品平均粒度的影响及其交互作用的显著性。结果表明,充填率对磨矿产品平均粒度影响最大,磨矿浓度次之,瓷球球径最小。瓷球球径与磨矿浓度的交互作用最显著,与充填率的交互作用次之,而瓷球充填率与磨矿浓度的交互作用不显著。通过模型预测最优试验条件为:瓷球球径为25.96 mm,磨矿充填率为34.04%,磨矿浓度为70.86%,该条件下磨矿产品平均粒度的预测值为54.46μm,与实验平均值54.41μm相近,表明预测模型是合理有效的。瓷球和钢球对比试验研究表明,细磨中以瓷球为磨矿介质,磨矿效果能够得到明显提升,-0.075 mm粒级产率增大,这与瓷球在磨机中的抛落运动优于钢球有关,瓷球对细粒级的破碎速率高于钢球,有利于提高磨矿效果。瓷球磨矿是新一代细磨技术的发展方向。

关键词：响应曲面法瓷球磁铁矿-石英体系平均粒度细磨

Bandgap engineering of hierarchical network-like SnIn4S8 microspheres through preparation temperature for excellent photocatalytic performance and high stability

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Green Energy & Environment 2019年第3期4卷 264-269页

作者： Jie Wang Min Liu Mei Wang Yi Wang Aiting Zhang Xiang Zhao guisheng zeng Fang Deng College of Environmental and Chemical Engineering Nanchang Hangkong University

The effect of synthesis temperature and reaction time on the visible-light photocatalytic activity of hierarchical network-like SnIn4S8 microspheres was investigated by the low-temperature co-precipitation strategy. The preparation temperature and reaction time have great influence on the photocatalytic activity of SnIn4S8, and the optimal preparation temperature and reaction time are 70℃ and 3 h, *** SnIn4S8 shows good reusability and high stability with no observable decrease of photocatalytic activity in five consecutive cycles.

关键词： SnIn4S8 Bandgap engineering Synthesis temperature Reaction time Photocatalytic activity

Sum-difference Reduced-dimensional Processing in SAR Image Domain and Statistical Analysis for Ground Moving Target Indication

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Chinese Journal of Aeronautics 2009年第6期22卷 620-626页

作者： Yang Zhiwei Liao guisheng Zhang Juan zeng Cao National Lab of Radar Signal Processing Xidian University Xi 'an 710071 China

In this article, a new reduced-dimensional adaptive processing algorithm based on joint pixels sum-difference data for clutter rejection is proposed. The sum-difference data are obtained by orthogonal projection of the joint pixels data of different synthetic aperture radar （SAR） images generated by a multi-satellite radar system. In the sense of statistical expectation, the sum-difference data contain the common and different information of the SAR images. Therefore, the objective of clutter cancellation can be achieved by adaptive processing. Moreover, based on the residual image after clutter rejection, statistical analysis of constant false-alarm rate （CFAR） detection of moving targets is also presented. Simulation results demonstrate the effectiveness and robustness of the proposed algorithm even with heterogeneous clutter and image co-registration error.

关键词： ground moving target indication space-time adaptive processing clutter rejection multi-channel synthetic aperture radar

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钙熔盐电解石墨阳极破损机理及防护研究

中国稀土学报 2004年第Z1期22卷 303-307页

作者：曾桂生谢刚杨大锦昆明理工大学材料与冶金工程学院云南昆明650093

通过扫描电镜和电子探针分析钙熔盐电解中破损石墨阳极的结构和杂质,探索了其破损机理,认为主要是由于孔隙存在导致氧化和孔隙吸附电解质,电解质因水解、脱水等过程使其周围的石墨阳极颗粒受应力不平衡而发生破损.通过实验研制出适合于... 详细信息

通过扫描电镜和电子探针分析钙熔盐电解中破损石墨阳极的结构和杂质,探索了其破损机理,认为主要是由于孔隙存在导致氧化和孔隙吸附电解质,电解质因水解、脱水等过程使其周围的石墨阳极颗粒受应力不平衡而发生破损.通过实验研制出适合于钙熔盐电解过程用的石墨阳极具有抗氧化性能的涂层,并对涂层进行了XRD,SEM分析和氧化失重实验.实验表明该涂层在680～750℃下成硼玻璃态,能渗透到石墨阳极孔隙中,涂层表面致密无裂纹且附着力强,因而具有较好的抗氧化能力.该涂层是一种适合钙熔盐电解的、性能优良的石墨阳极涂层.

关键词：钙熔盐电解石墨阳极抗氧化涂层

上海市校园足球隐性课程评价体系理论与实证分析

维普期刊数据库评论

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上海体育学院学报 2015年第4期39卷 86-89页

作者：曾桂生李文渊东华大学体育部上海201620 东华大学人文学院上海201620

运用特尔菲法、层次分析法等,结合隐性课程的相关理论,对建立校园足球隐性课程评价体系的原则、指标选取、权重值确定、计算步骤、评价方法和操作流程进行系统研究,为评估校园足球隐性课程的教学质量与效果设立标准,提供量化评价方法。... 详细信息

运用特尔菲法、层次分析法等,结合隐性课程的相关理论,对建立校园足球隐性课程评价体系的原则、指标选取、权重值确定、计算步骤、评价方法和操作流程进行系统研究,为评估校园足球隐性课程的教学质量与效果设立标准,提供量化评价方法。对东华大学校园足球隐性课程开发现状进行实证检验,其评价结果符合实际情况。

关键词：校园足球隐性课程评价体系实证分析上海

Tpd3-Pph21 phosphatase plays a direct role in Sep7 dephosphorylation in Candida albicans

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Tpd3-Pph21 phosphatase plays a direct role in Sep7 dephospho...