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Unveiling the mechanisms of Fe(Ⅲ)-loaded chitosan composite(CTS-Fe)in enhancing anaerobic digestion of waste activated sludge

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Journal of Environmental Sciences 2024年第4期138卷 200-211页

作者： Boaiqi Zhang Ziwen Zhao RuiMa Nan Chen zhe kong Zhongfang Lei zhenya Zhang Graduate School of Life and Environmental Sciences University of Tsukuba1-1-1 TennodaiTsukubaIbaraki 305-8572Japan The Key Laboratory of Water and Sediment Sciences Ministry of Education/State Environmental Protection Key Laboratory of All Material Fluxes in River Ecosystems/College of Environmental Sciences and EngineeringPeking UniversityBeijing 100871China South China Institute of Environmental Sciences Ministry of Ecology and EnvironmentGuangzhou 510345China School of Water Resources and Environment China University of Geosciences(Beijing)Beijing 100083China School of Environmental Science and Engineering Suzhou University of Science and TechnologySuzhou 215009China

Anaerobic digestion(AD)of waste activated sludge(WAS)is usually limited by the low generation efficiency of ***(Ⅲ)-loaded chitosan composite(CTS-Fe)have been reported to effectively enhanced the digestion of WAS,but its role in promoting anaerobic sludge digestion remains *** present study,the effects of CTS-Fe on the hydrolysis and methanogenesis stages of WAS anaerobic digestion were *** addition of CTSFe increased methane production potential by 8%-23%under the tested conditions with the addition of 5-20 g/L ***,the results demonstrate that the addition of CTS-Fe could effectively promote the hydrolysis of WAS,evidenced by lower protein or polysaccharides concentration,higher soluble organic carbon in rector adding CTS-Fe,as well as the increased activity of extracellular hydrolase with higher CTS-Fe ***,the enrichment of Clostridia abundance(iron-reducing bacteria(IRBs))was observed in CTS-Fe adding reactor(8.9%-13.8%),which was higher than that in the control reactor(7.9%).The observation further suggesting the acceleration of hydrolysis through dissimilatory iron reduction(DIR)process,thus providing abundant substrates for ***,the presence of CTS-Fe was inhibited the acetoclastic and hydrogenotrophic methanogenesis process,which could be ascribed to the Fe(Ⅲ)act as electron acceptor coupled to methane for anaerobic ***,coenzyme F420 activity in the CTS-Fe added reactor was 34.9% lower than in the blank,also abundance of microorganisms involved in hydrogenotrophic methanogenesis was *** from this study could provide theoretical support for the practical applications of CTS-Fe.

关键词： Chitosan-Fe(Ⅲ)composite Methanogenesis Dissimilatory iron reduction Enzyme activity Microbial community structure

Application of Muskingum routing method with variable parameters in ungauged basin

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Water Science and Engineering 2011年第1期4卷 1-12页

作者： Xiao-meng SONG Fan-zhe kong Zhao-xia ZHU School of Resource and Earth Science China University of Mining and Technology Xuzhou 221116 P. R. China Graduate School China University of Mining and Technology Xuzhou 221008 P. R. China Department of Resources and Survey Engineering Chongqing Vocational Institute of Engineering Chongqing 400037 B R. China

This paper describes a flood routing method applied in an ungauged basin, utilizing the Muskingum model with variable parameters of wave travel time K and weight coefficient of discharge x based on the physical characteristics of the river reach and flood, including the reach slope, length, width, and flood discharge. Three formulas for estimating parameters of wide rectangular, triangular, and parabolic cross sections are proposed. The influence of the flood on channel flow routing parameters is taken into account. The HEC-HMS hydrological model and the geospatial hydrologic analysis module HEC-GeoHMS were used to extract channel or watershed characteristics and to divide sub-basins. In addition, the initial and constant-rate method, user synthetic unit hydrograph method, and exponential recession method were used to estimate runoff volumes, the direct runoff hydrograph, and the baseflow hydrograph, respectively. The Muskingum model with variable parameters was then applied in the Louzigou Basin in Henan Province of China, and of the results, the percentages of flood events with a relative error of peak discharge less than 20% and runoff volume less than 10% are both 100%. They also show that the percentages of flood events with coefficients of determination greater than 0.8 are 83.33%, 91.67%, and 87.5%, respectively, for rectangular, triangular, and parabolic cross sections in 24 flood events. Therefore, this method is applicable to ungauged basins.

关键词： Muskingum model," flood routing." variable parameters ungauged basin HEC-HMS

Parameter identification and global sensitivity analysis of Xin'anjiang model using meta-modeling approach

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Water Science and Engineering 2013年第1期6卷 1-17页

作者： Xiao-meng SONG Fan-zhe kong Che-sheng ZHAN Ji-wei HAN Xin-hua ZHANG Hydrology and Water Resources Department Nanjing Hydraulic Research Institute School of Resource and Earth Science China University of Mining and Technology Key Laboratory of Water Cycle and Related Land Surface Processes Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of Sciences State Key Laboratory of Hydraulics and Mountain River Engineering Sichuan University

Parameter identification, model calibration, and uncertainty quantification are important steps in the model-building process, and are necessary for obtaining credible results and valuable information. Sensitivity analysis of hydrological model is a key step in model uncertainty quantification, which can identify the dominant parameters, reduce the model calibration uncertainty, and enhance the model optimization efficiency. There are, however, some shortcomings in classical approaches, including the long duration of time and high computation cost required to quantitatively assess the sensitivity of a multiple-parameter hydrological model. For this reason, a two-step statistical evaluation framework using global techniques is presented. It is based on （1） a screening method （Morris） for qualitative ranking of parameters, and （2） a variance-based method integrated with a meta-model for quantitative sensitivity analysis, i.e., the Sobol method integrated with the response surface model （RSMSobol）. First, the Morris screening method was used to qualitatively identify the parameters＇ sensitivity, and then ten parameters were selected to quantify the sensitivity indices. Subsequently, the RSMSobol method was used to quantify the sensitivity, i.e., the first-order and total sensitivity indices based on the response surface model （RSM） were calculated. The RSMSobol method can not only quantify the sensitivity, but also reduce the computational cost, with good accuracy compared to the classical approaches. This approach will be effective and reliable in the global sensitivity analysis of a complex large-scale distributed hydrological model.

关键词： Xin'anjiang model," global sensitivity analysis parameter identification meta-modeling approach," response surface model

Impacts of corridor design:An investigation on occupant perception of corridor forms in elderly facilities

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Frontiers of Architectural Research 2023年第6期12卷 1047-1064页

作者： Keming Hou Xinyue Liu zhe kong Haining Wang Mingli Lu Songtao Hu College of Architecture and Urban Planning School of Environmental and Municipal EngineeringQingdao University of TechnologyQingdao 266033China School of Architecture Southeast UniversityNanjing 210096China

The study addresses the issue of monotonous and lengthy corridors with a single spatial form commonly found in Chinese elderly *** aim to assess the influence of the built spatial environment on the emotions of the elderly *** do this,Virtual Reality(VR)technology was employed to construct a digital twin model featuring three corridor forms:straight,arc,and folded,*** participants experienced walking in each corridor form for 144 s,while electroencephalogram(EEG)data and subjective questionnaires were collected to explore the psychological and physiological effects caused by different *** results of the questionnaire indicate that arc corridor yielded the highest satisfaction,followed by straight corridor,and the satisfaction for folded corridor is the *** results show that folded corridor has 26.0%higher average power than arc corridor and 6.6%higher than straight *** participants consume less energy and are more satisfied in arc corridor,compared to straight and folded *** results establish a correlation between spatial form and occupant perception,suggesting that moderate spatial variations contribute to a better experience of the ***,this study provides quantitative cross-referencing information to optimize the design methods of public space in elderly facilities.

关键词： Elderly facility Corridor space design Subjective evaluation Virtual reality EEG

Modeling of irradiation-induced damage and failure behaviors of fuel foil/cladding interface in UMo/Zr monolithic fuel plates

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Nuclear Science and Techniques 2022年第5期33卷 16-29页

作者： Xiang-zhe kong Xiao-Bin Jian Feng Yan Chang-Bing Tang Zi-Xuan Guo Shu-Rong Ding Yuan-Ming Li Chun-Yu Yin Institute of Mechanics and Computational Engineering Department of Aeronautics and AstronauticsFudan UniversityShanghai 200433China Science and Technology On Reactor System Design Technology Laboratory Nuclear Power Institute of ChinaChengdu 610213China

Models to describe the damage and fracture behaviors of the interface between the fuel foil and cladding in UMo/Zr monolithic fuel plates were established and numerically *** effects of the interfacial cohesive strength and cohesive energy on the irradiationinduced thermal-mechanical behaviors of fuel plates were *** results indicated that for heterogeneously irradiated fuel plates:(1)interfacial damage and failure were predicted to be initiated near the fuel foil corner with higher fission densities,accompanied by the formation of a large gap after interface failure,which was consistent with some experimental observations;high tensile stresses in the fuel foil occurred near the edges of the failed interface,attributed to through-thickness cracking of the fuel foil,as found in some post-irradiation examinations;(2)the cohesive strength and cohesive energy of the interface both influenced the in-pile evolution behaviors of fuel plates;a lower cohesive strength or cohesive energy resulted in faster interfacial damage;(3)after interface fracture,the thickness of the whole plate increased to a greater degree(by~20%)than that of the samples without interfacial damage,which was attributed to the locally enhanced Mises stresses and the nearby creep deformations around the cracked *** study provided a theoretical basis for assessing failure in fuel elements.

关键词： UMo/Zr Irradiation-inducedthermo-mechanicalbehavior Numericalsimulation Cohesive model Interfacialfailure

LncRNA-AP006284.1 promotes prostate cancer cell growth and motility by forming RNA-DNA triplexes and recruiting GNL3/SFPQ complex to facilitate RASSF7 transcription

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Genes & Diseases 2023年第2期10卷 317-320页

作者： Yali Lu Yan Lin Xiaoyang Zhang Jun Yan zhe kong Lu Zhang Chenji Wang Yan Huang Shimin Zhao Yao Li Obstetrics and Gynecology Hospital State Key Laboratory of Genetic EngineeringMOE Engineering Research Center of Gene TechnologySchool of Life ScienceFudan UniversityShanghai 200433China Shanghai Engineering Research Center of Industrial Microorganisms School of Life ScienceFudan UniversityShanghai 200433China Institute of Metabolism and Integrative Biology (IMIB) Key Laboratory of Reproduction Regulation of NPFPCFudan UniversityShanghai 200433China Institutes of Biomedical Sciences Fudan UniversityShanghai 200433China Department of Laboratory Animal Science Fudan UniversityShanghai 200032China

Long noncoding RNAs(lncRNAs)are known to be involved in transcriptional regulation and their deregulation is associated with the development of human diseases such as cancer.1,2 LncRNA can directly bind to purine-rich double-stranded DNA sequences through Hoogsteen base pairing to form an RNA-DNA triplex motifs and regulate gene expression.3,4,5 However,its regulatory mechanisms and functions in tumors remain ***,we report that the LMNTD2 antisense RNA 1(LMNTD2-AS1,also known as AP006284.1)is highly expressed in prostate cancer(PCa)and positively correlated with the expression of its adjacent coding gene N-terminal Ras-association domain family 7(RASSF7).Mechanistically,AP006284.1 tethers to the RASSF7 promoter via RNA-DNA triplexes in cis-acting manner,which enhances chromatin accessibility and recruits the transcription factor complex GNL3/SFPQ to activate the expression of RASSF7,a repressor of the Hippo signaling ***,overexpression of either AP006284.1 or RASSF7 inactivated the Hippo signaling and malignant proliferation of PCa cells.

关键词： expression LncRNA cancer

Desertification: China provides a solution to a global challenge

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Frontiers of Agricultural Science and Engineering 2017年第4期4卷 402-413页

作者： Yingshuang BAO Leilei CHENG Yanfeng BAO Liu YANG Lina JIANG Chao LONG zhe kong Peng PENG Jun XIAO Qi LU Institute of Desertification Studies Chinese Academy of Forestry Research Institute of Forestry New Technology Chinese Academy of Forestry Asia-Pacific Network for Sustainable Forest Management and Rehabilitation

Desertification has been caused by various factors and is a major environmental problem and development bottleneck faced by the world. It is also a serious threat to ecological security and to sustainable economic and social development. As a stubborn world problem, focused on by the United Nations 2030 sustainable development goal 15.3, China aims to combat desertification by implementing the "eight-column fourbeam" strategy, and also suggest the "four-medicine"approach for global desertification governance. This includes the development of the United Nations Convention to Combat Desertification protocol, unified global compliance and compliance metrics; building a global observation network, and monitoring land changes based on remote sense; preparing the global natural desert(heritage) list, leaving the original deserts for future generations; initiating the global action of combating desertification, and striving to achieve a land degradationneutral world by 2030.

关键词： desertification global governance land degradation neutrality LDN origin status strategy sustainable development

《王阳明》:文章学视阈下王阳明散文风貌的荧屏投射

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电影评介 2021年第14期 101-103页

作者：孔哲汪洋贵州师范大学文学院贵州师范大学文学·教育与文化传播研究中心贵州师范大学阳明文化研究院贵阳孔学堂

王阳明是中国古代少有的可以达到“立德”“立言”“立功”三不朽的儒者,因其在龙场(今贵州修文)悟道,并在贵阳讲学,从而对贵州产生了巨大的影响。贵州人文精神:“天人合一”“知行合一”,后者便是王阳明于贵州首次提出。由贵州报业集... 详细信息

王阳明是中国古代少有的可以达到“立德”“立言”“立功”三不朽的儒者,因其在龙场(今贵州修文)悟道,并在贵阳讲学,从而对贵州产生了巨大的影响。贵州人文精神:“天人合一”“知行合一”,后者便是王阳明于贵州首次提出。由贵州报业集团黔森影视文化工作室制作的影视剧《王阳明》(陈晓雷,2012),是反映王阳明波澜壮阔一生的优秀作品。该剧中,为塑造王阳明形象,展示了不少王阳明的文章,如第13集,让王阳明自己吟诵了其散文名作《瘗旅文》。笔者以为,该剧中对王阳明散文的展现,有两方面的原因。其一,王阳明不仅是伟大的哲学家,其文学成就同样值得注意。

关键词：三不朽王阳明知行合一天人合一文学成就影视文化人文精神贵州修文

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基于分布式免疫进化算法的函数优化

系统工程与电子技术 2012年第2期34卷 413-417页

作者：苗启广孔哲鹏王艳红西安电子科技大学计算机学院陕西西安710071

针对遗传算法在寻优过程和多峰值函数求解中出现的"早熟"问题以及免疫算法收敛速度较慢问题,将免疫算法和进化算法进行优势融合,并结合改进的进化算法的并行模型,提出一种新的算法——分布式免疫进化算法(distributed immune evolutiona... 详细信息

针对遗传算法在寻优过程和多峰值函数求解中出现的"早熟"问题以及免疫算法收敛速度较慢问题,将免疫算法和进化算法进行优势融合,并结合改进的进化算法的并行模型,提出一种新的算法——分布式免疫进化算法(distributed immune evolutionary algorithm,DIEA)。新算法主要包括记忆种群进化模块和子种群进化模块两个部分,子种群的主要功能是找出各个区间的局部最优解;主种群主要是进行全局搜索,寻找全局最优解。仿真实验表明,该算法具有很高的全局寻优能力和很快的收敛速度,适合求解复杂多峰函数优化问题。

关键词：免疫算法进化算法函数优化分布式免疫进化算法