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Influence of seasonal temperature change on autotrophic nitrogen removal for mature landfill leachate treatment with high-ammonia by partial nitrification-Anammox process

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Journal of Environmental Sciences 2021年第4期33卷 291-300页

作者： Xiang Li ming-yu Lu Yong huang yi Yuan Yan Yuan School of Environmental Science and Engineering Suzhou University of Science and TechnologySuzhou 215009China National and Local Joint Engineering Laboratory of Municipal Sewage Resource Utilization Technology Suzhou 215009China

In this study,a denitrification(DN)–partial nitritation(PN)–anaerobic ammonia oxidation(Anammox)system for the efficient nitrogen removal of mature landfill leachate was built with a zone-partitioning self-reflux biological reactor as the core device,and the effects of changes in seasonal temperature on the nitrogen removal in non-temperature-control environment were *** results showed that as the seasonal temperature decreased from 34℃to 11.3℃,the total nitrogen removal rate of the DN-PN-Anammox system gradually decreased from the peak value of 1.42 kg/(m^(3)·day)to 0.49 kg/(m^(3)·day).At low temperatures(<20℃),when the nitrogen load(NLR)of the system is not appropriate,the fluctuation of high NH_(4)^(+)-N concentration in the landfill leachate greatly influenced the stability of the nitrogen *** temperatures of 11℃–15℃,the NLR of the system is controlled below 0.5 kg/(m^(3)·day),which can achieve stable nitrogen removal and the nitrogen removal efficiency can reach above 96%.The abundance of Candidatus Brocadia gradually increased with the decrease of ***,Candidatus Brocadia and Candidatus Kuenenia as the main functional microorganisms in the low temperature.

关键词： Landfill leachate Denitrification-partial nitrification-Anammox Seasonal temperature Nitrogen removal Microbiology community

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综合性医院住院患者心理障碍及相关性分析

中国实用护理杂志 2004年第8期20卷 1-2页

作者：李一鸣黄华兰应文娟黄建英许若侨陈书盈汕头大学医学院第一附属医院汕头大学医学院附属肿瘤医院汕头大学医学院第一附属医院广东汕头515041

目的　了解综合性医院住院患者心理障碍程度并对相关因素进行分析讨论。方法　应用焦虑自评量表(SAS)和抑郁自评量表 (SDS)、汉密顿焦虑量表 (HAMA)和汉密顿抑郁量表 (HAMD)及自行设计的相关因素调查表 ,对 2 75例住院患者进行临床测评... 详细信息

目的　了解综合性医院住院患者心理障碍程度并对相关因素进行分析讨论。方法　应用焦虑自评量表(SAS)和抑郁自评量表 (SDS)、汉密顿焦虑量表 (HAMA)和汉密顿抑郁量表 (HAMD)及自行设计的相关因素调查表 ,对 2 75例住院患者进行临床测评。结果　综合性医院患者SAS和SDS标准分均值均高于正常人群 ;抑郁反应发生率为 33.8% ,明显高于我国正常人群抑郁症状发生率 ;外科患者心理障碍较内科患者严重 (P <0 .0 1)。结论　提示应重视综合医院住院患者心理问题 ,尤其是手术前后患者 ,有的放矢地予以心理干预 ,以利于患者的康复

关键词：综合性医院住院患者心理障碍

Intrinsic feature extraction using discriminant diffusion mapping analysis for automated tool wear evaluation

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Frontiers of Information Technology & Electronic Engineering 2018年第11期19卷 1352-1361页

作者： yi-xiang huang Xiao LIU Cheng-liang LIU Yan-ming LI State Key Laboratory of Mechanical System and Vibration Shanghai Jiao Tong UniversityShanghai 200240China Shanghai Aerospace Equipment Manufacturer Shanghai 200245China

We present a method of discriminant diffusion maps analysis(DDMA) for evaluating tool wear during milling processes. As a dimensionality reduction technique, the DDMA method is used to fuse and reduce the original features extracted from both the time and frequency domains, by preserving the diffusion distances within the intrinsic feature space and coupling the features to a discriminant kernel to refine the information from the high-dimensional feature space. The proposed DDMA method consists of three main steps:(1) signal processing and feature extraction;(2) intrinsic dimensionality estimation;(3) feature fusion implementation through feature space mapping with diffusion distance preservation. DDMA has been applied to current signals measured from the spindle in a machine center during a milling experiment to evaluate the tool wear status. Compared with the popular principle component analysis method, DDMA can better preserve the useful intrinsic information related to tool wear status. Thus, two important aspects are highlighted in this study: the benefits of the significantly lower dimension of the intrinsic features that are sensitive to tool wear, and the convenient availability of current signals in most industrial machine centers.

关键词： Tool condition monitoring Manifold learning Dimensionality reduction Diffusion mapping analysis Intrinsic feature extraction

Risk Assessment of Deep-Water Horizontal X-Tree Installation

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China Ocean Engineering 2024年第2期38卷 210-220页

作者： MENG Wen-bo FU Guang-ming huang yi LIU Shu-jie huang Liang GAOYong-hai CNOOC China Limited Zhanjiang BranchZhanjiang 524057China Key Laboratory of Unconventional Oil and Gas Development Ministry of Education(China University of Petroleum(East China))Qingdao 266580China

Due to the high potential risk and many influencing factors of subsea horizontal X-tree installation,to guarantee the successful completion of sea trials of domestic subsea horizontal X-trees,this paper established a modular risk evaluation model based on a fuzzy fault ***,through the analysis of the main process oftree down and combining the Offshore&Onshore Reliability Data(OREDA)failure statistics and the operation procedure and the data provided by the job,the fault tree model of risk analysis of the tree down installation was ***,by introducing the natural language of expert comprehensive evaluation and combining fuzzy principles,quantitative analysis was carried out,and the fuzzy number was used to calculate the failure probability of a basic event and the occurrence probability of a top ***,through a sensitivity analysis of basic events,the basic events of top events significantly affected were determined,and risk control and prevention measures for the corresponding high-risk factors were proposed for subsea horizontal X-tree down installation.

关键词： subsea horizontal X-tree risk assessment fuzzy fault tree modular risk evaluation model

Unveiling H_(2)O_(2)-optimized NO_x adsorption-selective catalytic reduction(AdSCR)performance of WO_(3)/CeZrO_(2) catalyst

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Rare Metals 2023年第11期42卷 3755-3765页

作者： Yan huang Shuang Liu ming-ming Pei Jia-yi Li Hai-Di Xu Yao-Qiang Chen Institute of New Energy and Low-Carbon Technology Sichuan UniversityChengdu610064China Key Laboratory of Green Chemistry and Technology College of ChemistrySichuan UniversityMinistry of EducationChengdu610064China Sichuan Provincial Automobile Exhaust Purification Engineering Technology Research Center Chengdu610064China Sichuan Provincial Environmental Protection Environmental Catalytic Materials Engineering Technology Center Chengdu610064China

Recently,NO_x emissions in the cold-start period have been a great challenge in eliminating diesel vehicle *** this study,a type of NO_x adsorption-selective catalytic reduction(AdSCR)bifunctional catalyst was developed to remove NO_x in the cold-start period by constructing additional NO_x adsorption sites on the surface of the selective catalytic reduction of NO_x with NH_(3) *** AdSCR catalyst exhibited both NO_x adsorption-storage performance and NH_(3)-SCR *** amount of oxygen vacancies directly affected the adsorption performance of NO_x on the catalyst *** this study,H_(2)O_(2)with different pH values was employed to adjust the electronic structure of the CeZrO_(2) support and construct oxygen vacancies on the surface of CeZrO_(2),which contributed to improving NO_x adsorption and storage on the WO_(3)/CeZrO_(2)(W/CZ)catalyst below 200℃.The catalytic performance results show that CZ supports modified by alkaline H_(2)O_(2) rather than acidic and neutral H_(2)O_(2) significantly improve the NO_x adsorption capacity without decreasing the NH3-SCR *** characterization results show that the CZ support modified by alkaline H_(2)O_(2)possesses more surface oxygen vacancies and chemisorbed oxygen than CZ supports modified by acidic and neutral H_(2)O_(2).Oxygen vacancies are not only the active sites of NH_(3)-SCR,but also the active sites of NO_x ***,the W/CZ catalyst modified by alkaline H_(2)O_(2)exhibited an excellent AdSCR *** study proposes a novel perspective to address the issue of NO_x emissions from diesel vehicles during the cold start period.

关键词： NO_x adsorption Oxygen vacancy CeZrO_(2) Electronic structure Redox property

Ipsilateral and contralateral patent processus vaginalis in pediatric patients with a unilateral nonpalpable testis

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Asian Journal of Andrology 2023年第6期25卷 695-698页

作者： ming-ming Yu Hua Xie yi-Chen huang yi-Qing Lv Fang Chen Xiao-Xi Li Department of Urology Shanghai Children’s HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai 200062China Department of Urology Shanghai Jiao Tong University Affiliated Sixth People’s HospitalShanghai 200233China Shanghai Eastern Urological Reconstruction and Repair Institute Shanghai 200233China

This study aimed to investigate the incidence of patent processus vaginalis(PPV)in pediatric patients with a unilateral nonpalpable testis and explore the associated *** May 2014 to April 2017,152 boys who were diagnosed with a unilateral nonpalpable testis and underwent laparoscopy in Shanghai Children’s Hospital(Shanghai,China)were included in this *** data were collected and reviewed,and the results were analyzed regarding the age at operation,side,development,and position of the nonpalpable *** mean age of the patients was 2.6(standard deviation:2.3)*** testis was absent in 14 cases,nonviable in 81 cases,and viable in 57 *** incidence of PPV was 37.5%(57 of 152)on the ipsilateral side and 16.4%(25 of 152)on the contralateral *** ipsilateral PPV was more prevalent when the nonpalpable testis occurred on the right side(P<0.01).Besides,patients with a viable testis had a greater incidence of ipsilateral PPV than those with a nonviable or absent testis(P<0.01).Moreover,this rate was the highest when the testis was in the abdominal cavity and the lowest when the testis was in the scrotum(both P<0.01).However,the incidence of contralateral PPV was independent of all the *** conclusion,in children with a nonpalpable testis,the incidence of an ipsilateral PPV was significantly related to the side,development,and position of the testis,while it was independent of these factors on the contralateral side.

关键词： children laparoscopy nonpalpable testis patent processus vaginalis

Changes in rheumatoid arthritis under ultrasound before and after sinomenine injection

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World Journal of Clinical Cases 2022年第1期10卷 35-42页

作者： yi-Min huang Yu Zhuang Zhi-ming Tan Department of Rheumatology and Immunology Huizhou Central People’s HospitalHuizhou 516001Guangdong ProvinceChina

BACKGROUND Rheumatoid arthritis(RA)is a prevalent clinical autoimmune disease that is commonly treated with diclofenac and *** recent years,the application of traditional Chinese medicine in RA has received widespread attention;it promotes blood circulation,strengthens the immune system,and eliminates *** sinomenine preparation of Zhingqeng Fengtongning is studied as a possible treatment for patients with *** To explore the value of sinomenine injection into the articular cavity for the treatment of *** A total of 94 patients with RA treated from January 2019 to January 2021 were selected and divided into the study and control groups with 47 patients each using a simple random number table *** groups received conventional treatment with diclofenac sodium and methotrexate *** control group received diproxone and lidocaine by intra-articular administration while the study group received an intra-articular administration of the sinomenine preparation of Zhengqing Fengning and lidocaine.χ^(2) test was used to evaluate the therapeutic effect and synovial thickness,degree of pain through the visual analog scale(VAS),blood flow grade,arthroinflammatory indexes[rheumatoid factor(RF),C-reactive protein(CRP),and erythrocyte sedimentation rate(ESR)]before and after treatment in the two *** The total effective rate of the study group(93.62%)was higher than that of the control group(78.72%)(P0.05).After treatment,the synovial thickness and VAS score were significantly lower(P<0.05)in the study group than in the control group(2.05±0.59 mm vs 2.87±0.64 mm and 2.11±0.62 vs 2.90±0.79 scores,respectively).The rate of blood flow at grade 0 in the study group(76.60%)was higher than that in the control group(57.45%),and the rate of blood flow at grade I(10.64%)was lowe

关键词： Rheumatoid arthritis Articular injection Sinomenine Ultrasonic changes Inflammatory factors Zhengqing Fengtongning

构建中小企业融资机制的思考——基于优化金融资源配置视角

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长春金融高等专科学校学报 2017年第5期 37-42页

作者：王艳君余大杭易晓明黄挺顺泉州轻工职业学院福建泉州362200 黎明职业大学福建泉州362000 黎明职业大学经济管理学院福建泉州362000

金融资源是现代经济的核心资源,实体经济是决定一个国家经济发展的重要基石。在我国,中小企业是实体经济中最大的企业群体,目前已有7000多万家,占企业总数的99.7%。但是,当前我国金融资源配置中存在脱实向虚、货币空转、总量错配、结构... 详细信息

金融资源是现代经济的核心资源,实体经济是决定一个国家经济发展的重要基石。在我国,中小企业是实体经济中最大的企业群体,目前已有7000多万家,占企业总数的99.7%。但是,当前我国金融资源配置中存在脱实向虚、货币空转、总量错配、结构扭曲等现实问题。因此,如何优化金融资源配置,为中小企业发展服务,提出可供选择的金融资源与中小企业优化配置的战略对策,是当前经济形势下迫切需要解决的重要理论和现实问题。

关键词：金融资源实体经济中小企业资本市场

Unfused-ring Acceptors with Dithienobenzotriazole Core for Efficient Organic Solar Cells

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Chinese Journal of Polymer Science 2022年第12期40卷 1586-1593,I0007页

作者： Zui-yi Zhong Jia-Xin Xu Kai Zhang ming-Hao Dong Qi-Ri huang Fei huang Institute of Polymer Optoelectronic Materials and Devices State Key Laboratory of Luminescent Materials and DevicesSouth China University of TechnologyGuangzhou 510640China

In recent years, non-fullerene acceptors(NFAs) with unfused-ring structure have received extensive attention due to their flexible combination of building blocks and relatively simple synthetic routes. In this work, three new A-D-C-D-A type unfused-ring acceptors(UFAs),named DTBTz EH-IC2F, DTBTz Me-IC2F and DTBTz Me-IC2Cl, were designed and synthesized with dithienobenzotriazole(DTBTz) as the *** modification of alkyl chain on the DTBTz unit and change of halogen atoms on the cyanoindanone end groups, the differences in optoelectronic properties of these three small molecule acceptors were investigated. The results show that changes in alkyl chain and halogen atom endow UFAs with different features, including shift in absorption, changes in energy level and molecular packing. When blended with donor PBDB-T, the organic solar cell based on DTBTz Me-IC2Cl achieves the highest device efficiency of 12.3%, while DTBTz EH-IC2F-based device obtains 11.5% efficiency and DTBTz Me-IC2F-based device obtains 12.0% efficiency. The stability tests show that all the devices obtain good efficiency retention rates. These results demonstrate that the introduction of a rigid aromatic ring DTBTz as an intermediate core not only effectively results in highly planar A-D-C-D-A small molecules, but also provides a new reference for the design and development of UFAs in OSCs.

关键词： Organic solar cells Non-fullerene acceptors Unfused-ring