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Nutrient exchange and release experiment and its simulation study in lake water-sediment interface

Journal of Environmental Sciences 2006年第3期18卷 591-595页

作者： XUE Lian-qing hao Zhen-chun State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering College of Water Resources and Environment Hohai UniversityNanjing 210098 China

The sediment distributed and insolated under lake was collected for experiments. The nutrient layer distribution conditions of sampled sediment and its physical and chemical characteristics were analyzed to simulate and assess the influence degree to lake water quality. Based on the dynamic water exchanging experiments the nutrient release process in sediment and influence mechanism to substance exchanging on water-sediment interface was studied, and the correlation between the changing content of total phosphors and total nitrogen in sediment and covered water were analyzed for setting up a simulation model. At the same time the influence degree is explained in detail. The experimental results indicated that even if clean water without nutrient contents was used for water exchangement so as to decrease pollution or prevent eutrophication, however owing to the vertical nutrient distribution in lake sediment, it will lead to the increasing release amount greatly especially when the organic nutrient contained in sediment turns into inorganic status because of isolation. Besides the release process of total phosphate （TP） and total nitrogen （TN） were modeled and each nutrient＇s exchanging equation at interface caused by covered water nutrient concentration changing was set up. According to the simulating prediction, TP and TN content of cover water will also sustain a steady higher level in a long period. The nutrient release amount of sediment is not only affected by the covered water concentration but also connects with accumulative time. The experiments provide the fundamental theoretical and practical basis for taking ecological restoration project. And research is helpful to prevent or restore lake eutrophication.

关键词： phosphate and nitrogen release water-sediment interface experiments simulation model

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Tigecycline sclerotherapy for recurrent pseudotumor in aseptic lymphocyte-dominant vasculitis-associated lesion after metal-onmetal total hip arthroplasty:A case report

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World Journal of Clinical Cases 2021年第34期9卷 10696-10701页

作者： I-hao Lin chun-hao Tsai Department of Orthopedics China Medical University HospitalChina Medical UniversityTaichung 406040Taiwan School of Medicine China Medical UniversityTaichung 406040Taiwan Department of Sports Medicine China Medical UniversityTaichung 406040Taiwan

BACKGROUND Metal-on-metal(MoM)total hip arthroplasty(THA)has been associated with adverse reactions to metal debris,presenting clinically as *** SUMMARY This case report presents a female aged 73 year-old with MoM THA-related *** arthrotomy and bursectomy surgeries,histologic examinations of surgical specimens revealed a specific lymphocyte-dominant immunologic response,now known as aseptic lymphocyte-dominant vasculitisassociated lesion(ALVAL).Due to soft tissue persisting effusion after arthrotomy and bursectomy,revision surgery was then performed with ceramic-onpolyethylene ***,revision did not resolve the patient’s *** we describe our application of tigecycline sclerotherapy to treat recurrent pseudotumor after revision THA and no recurrence after 24-mo *** Tigecycline sclerotherapy is safe and effective in the management of recurrent pseudotumor after revision non-MoM THA in ALVAL cases.

关键词： Aseptic lymphocyte-dominant vasculitis-associated lesion Metal-on-metal total hip arthroplasty Pseudotumor Tigecycline Case report

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Static and Dynamic Integrated Analysis Scheme for Android Malware

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Journal of Electronic Science and Technology 2017年第3期15卷 246-250页

作者： chun-hao Yung Wen-Shenq Juang Department of Information Management National Kaohsiung First University of Science and Technology Kaohsiung 824

The Android platform is the most popular mobile operating *** the increase of the number of Android users,a lot of security issues have *** order to detect the malicious behaviors for the installed Android Apps,in this paper,we propose an Android malware detecting scheme by integrating static and dynamic analysis *** use Androguard and Droid Box to extract the features,and then remove the irrelevant *** we employ the support vector machine（SVM） to classify the Android malware and *** the result of our proposed scheme,the proposed integrated static and dynamic analysis scheme with SVM can effectively detect the Android malware.

关键词： Index Terms--Android dynamic analysis malware,static analysis support vector machine

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Ceria-Modified Clay Supported Palladium Catalysts for Complete Oxidation of Volatile Organic Compounds

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Journal of Rare Earths 2004年第Z1期22卷 178-180页

作者： Li Jinjun hao Zhengping Hu chun Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China

Ceria- and alumina-pillared interlayered clays were synthesized in the presence of PEO surfactant by using laponite clay as raw *** the synthesized pillared clays were used as supports to load palladium catalysts for complete oxidation of *** adsorption/desorption experiments reveal that the pillared clays have higher tests show that ceria pillar exhibited promoting effect on the activity of the palladium catalysts, and ceria-pillared clay supported palladium catalyst catalyzed the complete oxidation of benzene at less than 250 ℃.The calcination temperature affects the activity of the catalysts significantly, and it is found that the optimal calcination temperature are 600 and 400 ℃ for ceria- and alumina-pillared clay supported palladium catalysts, respectively.

关键词： ceria pillared clays palladium catalysts VOCs catalytic complete oxidation

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Quantification of anaerobic ammonium-oxidizing bacteria in enrichment cultures by quantitative competitive PCR

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Journal of Environmental Sciences 2009年第11期21卷 1557-1561页

作者： hao chun WANG Huan LIU Qinhua LI Xudong Chengdu Institute of Biology Chinese Academy of Sciences Chengdu 610041 China Graduate University of the Chinese Academy of Sciences Beijing 100039 China

The anaerobic ammonium-oxidizing （ANAMMOX） bacteria were enriched from a sequencing batch biofilm reactor （SBBR）. A quantitative competitive polymerase chain reaction （QC-PCR） system was successfully developed to detect and quantify ANAMMOX bacteria in environmental samples. For QC-PCR system, PCR primer sets targeting 16S ribosomal RNA genes of ANAMMOX bacteria were designed and used. The quantification range of this system was 4 orders of magnitude, from 10^3 to 10^6 copies per PCR, corresponding to the detection limit of 300 target copies per mL. A 312-bp internal standard was constructed, which showed very similar amplification efficiency with the target amxC fragment （349 bp） over 4 orders of magnitude （10^3-10^6）. The linear regressions were obtained with R^2 of 0.9824 for 10^3 copies, 0.9882 for 10^4 copies, 0.9857 for 10^5 copies and 0.9899 for 10^6 copies, respectively. Using this method, ANAMMOX bacteria were quantified in a shortcut nitrification/denitrification-anammox system which was set for piggery wastewater treatment.

关键词： anaerobic ammonium oxidation 16S rRNA approach quantitative competitive PCR

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Establishment and evaluation of a co-effect structure with thermal concentration-rotation function in transient regime

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Chinese Physics B 2020年第8期29卷 342-348页

作者： Yi-yi Li hao-chun Zhang School of Energy Science and Engineering Harbin Institute of TechnologyHarbin 150001China

The advanced heat flux manipulating structures inspired by TO-based spatial mapping have aroused wide interests owing to huge potential in high-efficient thermal energy ***,most researches are limited to the realization of single function in one specific structure and appropriate evaluation of the energy transfer process is relatively *** this work,based on time-dependent two-dimensional heat conduction equation,a co-effect structure capable of accomplishing concentration and rotation functions simultaneously is established and validated by finite element simulations compared with the conventional single concentrator and singe *** addition,from the perspective of thermodynamics,the transformed local entropy production rate and total entropy production are theoretically derived and applied to evaluate the quality of energy transfer *** proposed co-effect structure can help to explore other potential mass/flux manipulating devices and the evaluation method is valuable for the further manufacturing as well as optimization of these devices in engineering applications.

关键词： transformation thermodynamics thermal concentration-rotation transformed entropy production transient regime

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Clinical proteomics identifies potential biomarkers in Helicobacter pylori for gastrointestinal diseases

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World Journal of Gastroenterology 2014年第6期20卷 1529-1536页

作者： chun-hao Huang Shyh-Horng Chiou Quantitative Proteomics Center and Graduate Institute of Medicine Kaohsiung Medical University Institute of Biological Chemistry Academia Sinica

The development of gastrointestinal diseases has been found to be associated with Helicobacter pylori (H. pylori) infection and various biochemical stresses in stomach and intestine. These stresses, such as oxidative, osmotic and acid stresses, may bring about bi-directional effects on both hosts and H. pylori, leading to changes of protein expression in their proteomes. Therefore, proteins differentially expressed in H. pylori under various stresses not only reflect gastrointestinal environment but also provide useful biomarkers for disease diagnosis and prognosis. In this regard, proteomic technology is an ideal tool to identify potential biomarkers as it can systematically monitor proteins and protein variation on a large scale of cell’s translational landscape, permitting in-depth analyses of host and pathogen interactions. By performing two-dimensional polyacrylamide gel electrophoresis (2-DE) followed by liquid chromatography-nanoESI-mass spectrometry (nanoLC-MS/MS), we have successfully pinpointed alkylhydroperoxide reductase (AhpC), neutrophil-activating protein and non-heme iron-binding ferritin as three prospective biomarkers showing up-regulation in H. pylori under oxidative, osmotic and acid stresses, respectively. Further biochemical characterization reveals that various environmental stresses can induce protein structure change and functional conversion in the identified biomarkers. Especially salient is the antioxidant enzyme AhpC, an abundant antioxidant protein present in H. pylori. It switches from a peroxide reductase of low-molecular-weight (LMW) oligomers to a molecular chaperone of high-molecular-weight (HMW) complexes under oxidative stress. Different seropositivy responses against LMW or HMW AhpC in H. pylori-infected patients faithfully match the disease progression from disease-free healthy persons to patients with gastric ulcer and cancer. These results has established AhpC of H. pylori as a promising diagnostic marker for gastroin

关键词： Proteomics Biomarker Helicobacter pylori Gastritis Gastric ulcer Gastric cancer Alkylhydroperoxide reductase Neutrophil-activating protein Non-heme iron-binding ferritin

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RRAS:A key regulator and an important prognostic biomarker in biliary atresia

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World Journal of Gastroenterology 2011年第6期17卷 796-803页

作者： Rui Zhao hao Li chun Shen Shan Zheng Department of Pediatric Surgery Children's Hospital of Fudan University Shanghai 201102 China

AIM:To characterize the differentially expressed gene profiles in livers from biliary atresia (BA) patients including,ascertain genes,functional categories and pathways that play a central role in the pathogenesis of BA,and identify the novel prognostic markers for ***:Liver tissue samples from control patients,neonatal cholestasis patients,and BA patients at the age of 90 d were pooled for DNA microarray *** analysis was performed using,series test cluster of gene ontology,and Pathway-Finder ***-transcription polymerase chain reaction was performed to confirm changes in selected *** between RRAS gene expression and prognosis of 40 BA patients was analyzed in a 2-year follow-up ***:The 4 identified significant gene expression profiles could confidently separate BA liver tissue from normal and other diseased liver *** included genes were mainly involved in inflammation response and reconstruction of cellular *** significant pathways associated with BA were primarily involved in autoimmune response,activation of T lymphocytes and its related *** RRAS,POMC,SLC26A6 and STX3 genes were important regulatory modules in pathogenesis of *** expression of RRAS was negatively correlated with the elimination rate of jaundice and positively correlated with the occurrence rate of ***:Autoimmune response mediated by T lymphocytes may play a vital role in the pathogenesis of *** RRAS gene is an important regulatory module in the pathogenesis of BA,which may serve as a novel prognostic marker for BA.

关键词： Biliary atresia DNA microarray Bioinformatics RRAS Prognostic biomarker

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Global Well-posedness of Compressible Bipolar Navier-Stokes-Poisson Equations

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Acta Mathematica Sinica,English Series 2012年第5期28卷 925-940页

作者： Yi Quan LIN Cheng chun hao Hai Liang LI School of Mathematical Sciences Peking University Institute of Mathematics Academy of Mathematics and Systems ScienceHua Loo-Keng Key Laboratory of MathematicsChinese Academy of Sciences Department of Mathematics Capital Normal University

We consider the initial value problem for multi-dimensional bipolar compressible Navier- Stokes-Poisson equations, and show the global existence and uniqueness of the strong solution in hybrid Besov spaces with the in... 详细信息

关键词： Bipolar compressible Navier-Stokes-Poisson system global existence

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Hydro-geochemistry evolution in Ordovician limestone water induced by mountainous coal mining: A case study from North China

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Journal of Mountain Science 2020年第3期17卷 614-623页

作者： hao chun-ming HUANG Yue MA Deng-jun FAN Xing North China Institute of Science and Technology Sanhe 065201China State Key Laboratory ofWater Resource Protection and Utilization in Coal Mining Beijing 100077China National Engineering Research Center of Coal Mine Water Hazard Controlling(Suzhou University) Suzhou 234000China

This research aimed to investigate the changing mechanism of hydro-geochemistry in Ordovician limestone karst(OL) water induced by mountainous coal mining activities. Thus, the hydrogeochemistry evolution of OL water over 40 years within a typical northern mountainous coal mine named Fengfeng Mine was studied by using Piper diagram, Gibbs scheme, ions correlation and Principal component analysis(PCA) methods. Results showed that, except for HCO3^-, the ions of Ca^2+, Mg^2+, SO4^2-,Na^++K^+, Cl^- and total dissolution solids(TDS) values all increased by years as mining continues. Different hydro-geochemical characteristics in different periods can reflect different water-rock ***, sulfates dissolution gradually took place of carbonates in water-rock interaction. Especially,OL water-rock interactions in different periods were all affected by rock weathering and evaporationconcentration together. At last, evaporationconcentration co-effect dominated the hydrogeochemistry evolution slowly, along with significant cations exchange over years.

关键词： Hydro-geochemistry Evolution Rockwater interaction Ordovician limestone karst water Coal mining activity

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