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MICP修复重金属污染溶液及矿化垃圾土试验研究

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土木与环境工程学报（中英文） 2024年第5期46卷 117-126页

作者：许耀东章荣军黄小松郑俊杰华中科技大学岩土与地下工程研究所武汉430074 武汉大学土木建筑工程学院武汉430072

大量非正规垃圾填埋场面临超负荷运营困境,衍生出系列亟待解决的环境问题。重金属含量较高的垃圾渗滤液易对填埋场周边水体造成污染,填埋场开采扩容产生的矿化垃圾土也存在Cd、Pb、Zn和Cr(Ⅲ)等重金属超标现象,在资源化利用过程中容易... 详细信息

大量非正规垃圾填埋场面临超负荷运营困境,衍生出系列亟待解决的环境问题。重金属含量较高的垃圾渗滤液易对填埋场周边水体造成污染,填埋场开采扩容产生的矿化垃圾土也存在Cd、Pb、Zn和Cr(Ⅲ)等重金属超标现象,在资源化利用过程中容易造成二次污染,因此,垃圾填埋场重金属污染问题亟待解决。近年来,微生物诱导碳酸钙沉淀技术(MICP)固定重金属的能力被广泛探究,其中巴氏芽孢杆菌因环境适应性强、脲酶表达量高而备受关注。但相关研究中的修复对象主要为污染溶液和普通污染土壤,其与垃圾渗滤液以及矿化垃圾土在污染成因和化学成分等方面明显不同。鉴于此,开展巴氏芽孢杆菌修复重金属污染溶液和污染矿化垃圾土试验,探究巴氏芽孢杆菌生物修复重金属的可行性,分析生物修复前后矿化垃圾土中重金属形态变化以及修复机理。结果显示,巴氏芽孢杆菌对溶液中Cd、Pb、Zn和Cr(Ⅲ)修复率可分别达到95%、84%、5%和98%,对矿化垃圾土中可交换态Cd、Pb和Zn修复率亦可分别达到74%、84%和62%,可交换态Cr(Ⅲ)修复处理前含量几乎为0;经生物修复,矿化垃圾土中可交换态和碳酸盐结合态重金属含量降低,铁锰氧化物结合态和残渣态重金属含量增加;同时,矿化垃圾土中含Fe和Al成分以及MICP过程产生的碳酸钙沉淀共同促进重金属向更稳定形态转化。

关键词：矿化垃圾土重金属生物修复巴氏芽孢杆菌修复率

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Urban Land-banking Planning:A New Instrument to Regulate Urban Land Supply-demand of Nanjing City

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Chinese Journal of Population,Resources and Environment 2008年第2期6卷 18-24页

作者： Tu xiaosong Pu Lijie huang Xianjin Jin Xiaobin Department of Land Resources and Tourism Sciences Nanjing University Nanjing Jiangsu 210093 China

It is the major purpose of the paper to present the urban land-banking planning and its functions of promoting the urban land-banking system and land use *** urban land-banking system has the potential attribute of acting as an irreplaceable role in urban land administration,but its unexpected function-deviation has impacted its implementation effect in China.A few city governments are attempting to deal with the problem by the urban land-banking planning which is expected to contribute to the extension of urban function,optimization of urban patterns,promotion of urban core competitiveness and overall construction of the urban value *** this paper,we primarily discuss the necessity,functions,purposes and main contents of the urban land-banking ***,the implementing situation of the urban land-banking system in Nan- jing is analyzed,including its integrated mode,spatio-temporal quantitative distribution and main ***,the background and targets including total,compositions,space,and regulation points are gradually introduced to present the Nanjing land-banking planning version 2.

关键词： urban land-banking system patterns function orientation planning Nanjing City

First Rocketsonde Launched from an Unmanned Semi-submersible Vehicle

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Advances in Atmospheric Sciences 2019年第4期36卷 339-345页

作者： Hongbin CHEN Jun LI Yuejian XUAN xiaosong huang Weifeng ZHU Keping ZHU Wenzheng SHAO Key Laboratory of Middle Atmosphere and Global Environment Observation Institute of Atmospheric PhysicChinese Academy of Sciences School of the Earth Science Chinese Academy of Science University Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters Nanjing University of Information Science and Technology Jiangxi Xinyu Guoke Technology Co. Ltd

The unmanned semi-submersible vehicle(USSV) developed by the unmanned surface vehicle team of the Institute of Atmospheric Physics is an unmanned, rugged, and high-endurance autonomous navigation vessel designed for the collection of long-term, continuous and real-time marine meteorological measurements, including atmospheric sounding in the lower troposphere. A series of river and sea trials were conducted from May 2016 to November 2017, and the first rocketsonde was launched from the USSV. Real-time meteorological parameters in the marine atmospheric boundary layer(MABL) were obtained, including sea surface temperature, and vertical profiles of the pressure, temperature, relative humidity, wind speed,and wind direction. These data are extremely useful and important for research on air–sea interactions, sea surface heat and latent heat flux estimations, MABL modeling, and marine satellite product validation.

关键词： unmanned semi-submersible vehicle rocketsonde marine meteorological observation marine atmospheric boundary layer

Surpass Evolve血流导向装置治疗外伤性颅内假性动脉瘤一例报道及文献复习

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中华脑血管病杂志（电子版） 2024年第2期18卷 193-196页

作者：杨叶黄晓松杨莹刘柳青闫江婷林莉瑶湖南中医药大学临床医学院湖南长沙410000 湖南省脑科医院(湖南省第二人民医院)神经内科湖南长沙410000

外伤性颅内假性动脉瘤是一种罕见病变,约占所有颅内动脉瘤的近1%,但其死亡率为20%,甚至更高[1]。外伤性颅内假性动脉瘤是由于颅脑损伤造成血管壁全层损伤而形成,通常在损伤动脉破口处形成血肿,局限化血肿在受到动脉血流的不断冲击下形... 详细信息

外伤性颅内假性动脉瘤是一种罕见病变,约占所有颅内动脉瘤的近1%,但其死亡率为20%,甚至更高[1]。外伤性颅内假性动脉瘤是由于颅脑损伤造成血管壁全层损伤而形成,通常在损伤动脉破口处形成血肿,局限化血肿在受到动脉血流的不断冲击下形成血肿内空腔,成为假性动脉瘤。与真性动脉瘤相比,外伤性颅内假性动脉瘤无真正的血管壁结构,也不具备真正意义上与载瘤动脉相连的瘤颈。由于假性动脉瘤术中破裂风险高,且缺乏可夹闭的组织,因此,通常不使用外科夹闭手术。

关键词：颅内动脉瘤假性动脉瘤颅脑损伤局限化载瘤动脉真性动脉瘤血流导向装置动脉血流

Fractal Study on the Evolution of Micro-Pores in Concrete Under Freeze-Thaw

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Journal of Wuhan University of Technology(Materials Science) 2024年第1期39卷 109-117页

作者：孙浩然邹春霞 XU Deru GUO xiaosong huang Kun College of Water Conservancy and Civil Engineering Inner Mongolia Agricultural UniversityHohhot 010018China Xi’an HaiTang Vocational College Xi’an 710038China

After exposure to freeze-thaw cycles, scanning electron microscopy(SEM) and nuclear magnetic resonance(NMR) were used to test the four mixtures. The microstructure is qualitatively analyzed from the 2D SEM image and the 3D pore distribution curve before and after freezing and thawing. The fractal dimension is utilized to characterize the two-dimensional topography image and the three-dimensional pore distribution, quantitatively. The results reveal that the surface porosity and volume porosity increase as the freeze-thaw action increases. Self-similarity characteristics exist in micro-damage inside the concrete. In the fractal dimension, it is possible to characterize pore evolution quantitatively. The fractal dimension correlates with pore damage evolution. The fractal dimension effectively quantitatively characterizes micro-damage features at various scales from the local to the global level.

关键词： fractal dimension freeze-thaw cycle concrete SEM NMR

Experimental Investigation on Solution Regeneration Performance and Coefficients in Full-Open System for Heat and Water Recovery of Flue Gas

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Journal of Thermal Science 2024年第3期33卷 1094-1108页

作者： WEI Hongyang huang Shifang MA Yuxin CHEN Bo SUN Li ZHANG xiaosong School of Energy and Environment Southeast UniversityNanjing210096China MOE Engineering Research Center for Building Energy Equipment&Environment Southeast UniversityNanjing210096China Jiangsu Frontier Electric Technology Co. LtdNanjing211106China

The recovery of heat and water from low-grade flue gas is of considerable importance for energy conservation and environmental *** the full-open absorption heat pump shows promise as a means of achieving heat and water recovery,the lack of research on heat and mass transfer performance of open-type solution evaporation regeneration represents a significant impediment to its design and *** paper experimentally investigates the regeneration performance of an open-type spaying tower equipped with ceramic structured *** different regeneration modes are proposed,namely ambient air receiver mode and flue gas receiver mode,to utilize air or low-grade flue gas as a driving *** impact of different input parameters on the regeneration characteristics,including heat transfer capacity,water removal rate,thermal efficiency,and humidity effectiveness,are *** findings indicate that the enhancement of regeneration can be achieved through the increase of solution flow rate,solution temperature,and flue gas flow rate in both regeneration ***,high solution concentration and flue gas humidity ratio can weaken water removal rates and reduce thermal *** the regeneration of CaCl_(2)-H_(2)O with a concentration of55%,flue gas around 200℃with a humidity ratio below 44 g/kg can successfully drive the solution regeneration *** the solution concentration or flue gas humidity ratio continues to rise,additional energy is necessary for ***,the coupled heat and mass transfer coefficients are fitted,which can contribute to the design and optimization of the open-type regenerator.

关键词： heat and water recovery solution regeneration flue gas regeneration performance coefficient

东海盆地西湖凹陷基底时空演化特征再认识及勘探意义

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上海国土资源 2024年第2期45卷 125-131页

作者：黄晓松唐贤君许怀智何新建陈永军中海石油(中国)有限公司上海分公司上海200335

东海盆地西湖凹陷中西部多口钻井钻遇较厚层基底火山岩,展现了潜山勘探的巨大潜力。但长期以来基底火山岩发育期次不明晰,基底形成时代及地层序列不明确,制约着西湖凹陷早期构造演化与潜山储层的勘探潜力分析。本次通过岩石学、地球化... 详细信息

东海盆地西湖凹陷中西部多口钻井钻遇较厚层基底火山岩,展现了潜山勘探的巨大潜力。但长期以来基底火山岩发育期次不明晰,基底形成时代及地层序列不明确,制约着西湖凹陷早期构造演化与潜山储层的勘探潜力分析。本次通过岩石学、地球化学、构造地质学、地球物理学等多学科手段对东海盆地西湖凹陷中西部基岩开展综合研究及评价,厘定西湖凹陷基底形成时代、岩石类型及地层序列,总结基底时空演化特征新认识。基底时空演化特征的再认识,有利于厘清西湖凹陷早期构造演化阶段划分和潜山岩性分布规律,指明西湖凹陷基底潜山储层的有利分布区,为西湖凹陷潜山勘探提供方向。

关键词：西湖凹陷地层时代岩石学地层序列构造演化

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Distributed Finite-time Consensus Control for Surface Vehicles with Bounded Input and Fixed-time Observer

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Distributed Finite-time Consensus Control for Surface Vehicl...

嗜中性粒细胞胞质因子1基因C923T多态性与长沙市汉族人群脑出血的相关性研究

第三十九届中国控制会议

作者： Bo Wang Qing Fei xiaosong huang Beijing Institute of Technology Institute of Atmospheric Physic Chinese Academy of Sciences

This paper investigates the finite-time consensus algorithms for a multi-agent system consisting of multiple surface vehicles through a fixed connected undirected graph. The objective is to design distributed algorithms that use only the local information to drive the surface vehicles to an identical heading angle. By leveraging the homogeneity properties and stability theory, we prove that the proposed distributed algorithms with bounded input make the synchronization error converge to zero in finite time under both the leaderless and leader-follower cases. To relax the assumption that every vehicle requires angular velocity information, a fixed-time observer is developed in the leader-follower case such that the followers can track the leader’s heading angle in finite time without measuring the angular velocity. The proposed distributed algorithms are finally validated in simulations using the scale model of a surface vehicle.

关键词： Surface Vehicles Steering Control Homogeneity Stability Nonlinear Observer

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中南大学学报（医学版） 2011年第4期36卷 301-306页

作者：黄晓松杨期东湖南省脑科医院神经内科长沙410007 中南大学湘雅医院神经内科长沙410008

目的:探讨嗜中性粒细胞胞质因子1(NCF1)基因第10外显子C923T(A la308Val)多态性与湖南省长沙市汉族人群脑出血的关系。方法:采用PCR-单链构象多态技术和DNA直接测序法检测湖南省长沙市汉族人群脑出血患者110例、10个脑出血家系成员110... 详细信息

目的:探讨嗜中性粒细胞胞质因子1(NCF1)基因第10外显子C923T(A la308Val)多态性与湖南省长沙市汉族人群脑出血的关系。方法:采用PCR-单链构象多态技术和DNA直接测序法检测湖南省长沙市汉族人群脑出血患者110例、10个脑出血家系成员110例和健康对照者100名的NCF1基因第10外显子C923T多态性;同时检测各组血脂水平。结果:湖南省长沙市汉族人群NCF1基因第10外显子C923T多态存在CC,CT,TT 3种基因型,脑出血组及其各亚型组C923T(A la308Val)多态基因频率分布与对照组比较,差异无统计学意义(P>0.05);脑出血家系组中患病组和未患病组及脑出血组的C923T多态分布与对照组比较,差异无统计学意义(P>0.05);脑出血组中各基因型血脂水平与对照组比较,差异无统计学意义(P>0.05)。结论:湖南省长沙市汉族人群NCF1基因C923T多态性可能与脑出血的易患性无关。

关键词：脑出血嗜中性粒细胞胞质因子1 基因多态性血脂