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上海化工 2024年第1期49卷 22-26页

作者：卢青贾英李娜王佩琦顾佳媛沈倩上海市固体废物处置有限公司上海200120 上海市化工环境保护监测站上海200050

在国家“双碳”背景下,我国危险废物处置行业面临着巨大的挑战和机遇。从危险废物的产生情况和处置技术入手,结合危废处置行业的碳排放现状,以某危险废物处置企业为案例进行碳排放源的识别与分析,提出减排潜力与相应措施,从而达到绿色... 详细信息

在国家“双碳”背景下,我国危险废物处置行业面临着巨大的挑战和机遇。从危险废物的产生情况和处置技术入手,结合危废处置行业的碳排放现状,以某危险废物处置企业为案例进行碳排放源的识别与分析,提出减排潜力与相应措施,从而达到绿色低碳运行。

关键词：危险废物碳排放减排潜力

Efficient elimination of multidrug-resistant bacteria using copper sulfide nanozymes anchored to graphene oxide nanosheets

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Nano Research 2020年第8期13卷 2156-2164页

作者： Wanshun Wang Binglin Li Huili Yang Zefeng Lin Lingling Chen Zhan Li jiayuan Ge Tao Zhang Hong Xia Lihua Li Yao lu Guangdong Key Lab of Orthopedic Technology and Implant Materials General Hospital of Southern Theater Command of PLAThe Second Clinical Medical College and Department of Graduate School of Guangzhou University of Chinese MedicineThe Second School of Clinical Medicine of Southern Medical UniversityGuangzhou510010China State Key Laboratory of luminescent Materials and Devices Guangdong Provincial Key Laboratory of Fiber Laser MaterialsSchool of Materials Science and EngineeringSchool of PhysicsSouth China University of TechnologyGuangzhou510640China Orthopedic Centre Clinical Research CentreZhujiang HospitalSouthern Medical UniversityGuangzhou510282China

Antibacterial nanomaterials have attracted growing interest for bacterial infection ***,most nanomaterials eliminate bacteria either physically or chemically,which hampers their efficacy when dealing with multidrug-resistant *** overcome this,we integrated copper sulfide(CuS)nanoparticles with active graphene oxide nanosheets(GO NSs)to synthesize a superior nanocomposite(CuS/GO NC)that acts both physically and chemically on the ***/GO NC was produced using a facile hydrothermal method,whereby the CuS nanoparticles grew and were uniformly dispersed on the GO NSs in *** found that the CuS/GO NC possesses a unique needle-like morphology that physically damages the bacterial cell ***/GO NC also exhibits high oxidase-and peroxidase-like activity,ensuring efficient generation of the reactive oxygen species•OH from H2O2,which kills bacteria *** features endow the CuS/GO NC with excellent antibacterial capabilities to kill multidrug-resistant bacteria such as methicillin-resistant Staphylococcus aureus(MRSA)with only a single ***,it was found that the CuS/GO NC accelerated the healing of infected wounds in vivo owing to its good biocompatibility as well as facilitation of cell migration and collagen *** study provides a new strategy to combine the physical and chemical antibacterial modes of nanomaterials to develop more effective therapies to combat multidrug-resistant bacterial infections.

关键词： antibacterial nanomaterials nanozyme multidrug-resistant bacteria wound healing

Chemical characteristics of haze particles in Xi＇an during Chinese Spring Festival： Impact of fireworks burning

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Journal of Environmental Sciences 2018年第9期30卷 179-187页

作者： Can Wu Gehui Wang jiayuan Wang Jianjun Li Yanqin Ren lu Zhang Cong Cao Jin Li Shuagshuang Ge Yuning Xie Xinpei Wang Guoyan Xue State Key Laboratory of Loess and Quaternary Geology Key Lab of Aerosol Chemistry and Physics Institute of Earth Environment Chinese Academy of Sciences Xi' an 710061 China Key Laboratory of Geographic Information Science of the Ministry of Education School of Geographic Sciences East China Normal University Shanghai 210062 China Center for Excellence in Regional Atmospheric Environment Institute of Urban Environment Chinese Academy of Sciences Xiamen 361021 China University of Chinese Academy of Sciences Beijin9 100049 China State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental Sciences Beijing 100012 China

Fireworks burning releases massive fine particles and gaseous pollutants, significantly deteriorating air quality during Chinese lunar New Year （LNY） period. To investigate the impact of the fireworks burning on the atmospheric aerosol chemistry, 1-hr time resolution of PM2.5 samples in Xi＇an during the winter of 2016 including the LNY were collected and detected for inorganic ions, acidity and liquid water content （LWC） of the fine aerosols. PM2.5 during the LNY was 167 ± 87 μg/m^3, two times higher than the China National Ambient Air Quality Standard （75 μg/m^3）. K^＋（28 wt.% of the total ion mass） was the most abundant ion in the LNY period, followed by SO^2-4 （25 wt.%） and C1^- （18 wt.%）. In contrast, NO^-3 （34 wt.%） was the most abundant species in the haze periods （hourly PM2.5 〉 75 μg/m^3）, followed by SO^2-4 （29.2 wt.%） and NH^＋4 （16.3 wt.%）, while SC94 （35 wt.%） was the most abundant species in the clean periods （hourly PM2.5 〈 75 μg/m^3）, followed by NO^-3 （23.1 wt.%） and NH^＋4 （11 wt.%）. Being different from the acidic nature in the non-LNY periods, aerosol in the LNY period presented an alkaline nature with a pH value of 7.8 ± 1.3. LWC during the LNY period showed a robust linear correlation with K2SO4 and KC1, suggesting that aerosol hygroscopicity was dominated by inorganic salts derived from fireworks burning. Analysis of correlations between the ratios of NO^-3/SO^2-4 and NH^＋4/SO^2-4 indicated that heterogeneous reaction of HNO3 with NH3 was an important formation pathway of particulate nitrate and ammonium during the LNY period.

关键词： Inorganic ions Aerosol acidity Liquid water content Composition and source Nitrate formation

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压裂液连续混配装置混合罐设计研究

机械管理开发 2024年第7期39卷 91-93页

作者：王金彦杨家元陈颖张天临路海龙白尚懿兰州兰石能源装备工程研究院有限公司甘肃兰州730314 兰州兰石石油装备工程股份有限公司甘肃兰州730314

石油天然气压裂用连续混配装置的核心技术是配液,与配液相关的设备主要是混合罐,混合罐设计中主要考虑基液特性、罐体设计和搅拌器设计。基液特性主要考虑流量、黏度、添加剂、成本等;罐体主要考虑材料、形状、挡板位置、舱室容积、基... 详细信息

石油天然气压裂用连续混配装置的核心技术是配液,与配液相关的设备主要是混合罐,混合罐设计中主要考虑基液特性、罐体设计和搅拌器设计。基液特性主要考虑流量、黏度、添加剂、成本等;罐体主要考虑材料、形状、挡板位置、舱室容积、基液流向,罐体为延长基液流经时间采用迷宫式设计;搅拌器主要考虑转速、功率、直径、段数、叶片形状等,为达到良好搅拌效果搅拌器采用两段式设计。该设计研究可应用于同类产品设计与计算,是压裂液连续混配装置混合罐的核心技术和重要设计依据。

关键词：压裂液连续混配装置混合罐迷宫式设计设计研究

Laboratory-based Surveillance and Clinical Profile of Sporadic HEV Infection in Shanghai,China

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Virologica Sinica 2021年第4期36卷 644-654页

作者： Jie lu Qing Li jiayuan Jiang Ziqiang Li Peiyun Wang Zike Sheng Rongtao Lai Huijuan Zhou Wei Cai Hui Wang Qing Guo Honglian Gui Qing Xie Department of Infectious Diseases Ruijin HospitalShanghai Jiao Tong University School of MedicineShanghai 200025China Clinical Research Institute Shanghai Jiao Tong University School of MedicineShanghai 200025China

The study aimed to describe the epidemiological,virological and clinical features of sporadic HEV infection in eastern China.A total of 6112 patient sera were tested for anti-HEV IgG or anti-HEV IgM during one consecutive year(between August 2018 and July 2019).HEV RNA presence was evaluated by RT-PCR and HEV sequences were phylogenetically *** features of confirmed HEV-infected patients were *** sero-positivity rate of anti-HEV IgG maintained stable around 40%,while an obvious winter spike of anti-HEV IgM prevalence was observed.A total of 111 patients were confirmed of HEV viremia by molecular *** 4d was *** analyses suggest that certain strains circulate across species and around the *** with confirmed current HEV infection had a high median age(58 years)and males were predominant(62.2%).Most patients presented with jaundice(75.7%)and anorexia(68.0%).Significantly elevated levels of liver enzymes and bilirubin were ***,the baseline bilirubin level was positively correlated with illness ***-existing HBV carriage may deteriorate *** clinical burden caused by locally acquired HEV infection is *** should be enforced especially during the transition period from winter to *** with higher level of bilirubin at disease onset had slower recovery from HEV infection.

关键词： Hepatitis E virus(HEV) Seroprevalence Genotyping Epidemiology Surveillance

Hierarchically nanostructured nitrogen-doped porous carbon multilayer confining Fe particles for high performance hydrogen evolution

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Journal of Materiomics 2023年第6期9卷 1113-1121页

作者： Ying Wang Li Jin Shiyang Hua Zhe Zhao Zhijia Xiao Chunyan Qu jiayuan Huang Gaoshan Huang Xinyi Ke Zihan lu Ji Tan Xuanyong Liu Yongfeng Mei College of Mathematics and Physics Shanghai University of Electric PowerShanghai200090China Department of Materials Science&State Key Laboratory of Molecular Engineering of Polymers Fudan UniversityShanghai200438China Shanghai Frontiers Science Research Base of Intelligent Optoelectronics and Perception Institute of OptoelectronicsFudan UniversityShanghai200438China International Institute of Intelligent Nanorobots and Nanosystems Fudan UniversityShanghai200438China Yiwu Research Institute of Fudan University Yiwu322000ZhejiangChina State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of CeramicsChinese Academy of SciencesShanghai200050China Wuhan Institute of Marine Electric Propulsion Wuhan430064China

Precise assembly of active component with sophisticated confinement in electrocatalyst are promising to increase the active site exposure for enhanced hydrogen evolution reaction(HER).Here,PCN-333 films with mesopores are firstly assembled on titanium carbide MXene with the assistance of atomic layer deposited oxide *** the whereafter pyrolysis process,the composite is converted to Ndoped porous carbon multi-layer containing Fe *** strong confinement of Fe active particle in carbon as well as great contact between metal and carbon effectively enhance active site ***,this multi-layer porous structure provides high specific surface area and plentiful mesopores for electrolyte *** to the structural advantage,the composite can be well functioned in both acid and alkaline electrolytes with excellent HER performance,e.g.,low overpotential/Tafel *** present work may have great potential in developing high efficiency transition-metal based electrocatalysts.

关键词： Hierarchical nanostructure Metal organic framework MXene Atomic layer deposition Hydrogen evolution reaction

Efficacy of comprehensive cognitive health management for Shanghai community older adults with mild cognitive impairment

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General Psychiatry 2022年第4期35卷 240-248页

作者： jiayuan Qiu lu Zhao Shifu Xiao Shaowei Zhang Ling Li Jing Nie Li Bai Shixing Qian Yang Yang Michael Phillips Meiqing Sheng Yuan Fang Xia Li Department of Geriatric Psychiatry Shanghai Mental Health CenterShanghai Jiao Tong University School of MedicineShanghaiChina Shanghai I-Zhaohu Senior Care Services ShanghaiChina

Background The management of modifiable risk factors and comorbidities may impact the future trajectory of cognitive impairment,but easy-to-implement management methods are *** This study investigated the effects of simple but comprehensive cognitive health management practices on the cognitive function of older adults in the community with normal cognition(NC)and mild cognitive impairment(MCI).Methods The comprehensive cognitive health management programme included a psychiatric assessment of the cognitive risk factors for those in the intervention groups and individualised recommendations for reducing the risks through self-management supported by regular medical professional *** intervention groups for this study included 84 elderly participants with NC and 43 elderly participants with MCI who received comprehensive cognitive health *** control groups included 84 elderly participants with NC and 43 elderly participants with MCI who matched the intervention group’s general characteristics and scale scores using the propensity matching score *** Montreal Cognitive Assessment(MoCA)scale and Geriatric Depression Scale(GDS)scores were compared after a 1-year *** For older adults with MCI in the intervention group,MoCA scores were higher at the 1-year followup than at baseline(24.07(3.674)vs 22.21(3.052),p=0.002).For the MoCA subscales,the intervention group’s abstract and delayed memory scores had significantly increased during the 1-year ***,in a generalised linear mixed model analysis,the interaction effect of group×follow-up was statistically significant for the MCI group(F=6.61,p=0.011;coefficients=5.83).Conclusions After the comprehensive cognitive health management intervention,the older adults with MCI in the community showed improvement at the 1-year *** preliminary study was the first to demonstrate an easy-to-implement strategy for modifying the cognitive risk factors of elderl

关键词： impairment comprehensive management

Topological Dirac surface states in ternary compounds GeBi_(2)Te_(4),SnBi_(2)Te_(4) and Sn_(0.571)Bi_(2.286)Se_(4)

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Chinese Physics B 2021年第12期30卷 148-152页

作者： Yunlong Li Chaozhi Huang Guohua Wang jiayuan Hu Shaofeng Duan Chenhang Xu Qi lu Qiang Jing Wentao Zhang Dong Qian Key Laboratory of Artificial Structures and Quantum Control(Ministry of Education Shenyang National Laboratory for Materials ScienceSchool of Physics and AstronomyShanghai Jiao Tong UniversityShanghai 200240China Tsung-Dao Lee Institute Shanghai Jiao Tong UniversityShanghai 200240China

Using high-resolution angle-resolved and time-resolved photoemission spectroscopy,we have studied the low-energy band structures in occupied and unoccupied states of three ternary compounds GeBi_(2)Te_(4),SnBi_(2)Te_(4) and Sn_(0.571)Bi_(2.286)Se_(4) near the Fermi *** previously confirmed topological insulator GeBi_(2)Te_(4) compounds,we confirmed the existence of the Dirac surface state and found that the bulk energy gap is much larger than that in the first-principles *** SnBi_(2)Te_(4) compounds,the Dirac surface state was observed,consistent with the first-principles calculations,indicating that it is a topological *** experimental detected bulk gap is a little bit larger than that in *** Sn_(0.571)Bi_(2.286)Se_(4) compounds,our measurements suggest that this nonstoichiometric compound is a topological insulator although the stoichiometric SnBi_(2)Se_(4) compound was proposed to be topological trivial.

关键词： angle-resolved photoemission spectroscopy band structure topological insulator ternary compounds

On-chip manufacturing of synthetic proteins for point-of-care therapeutics

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Microsystems & Nanoengineering 2019年第1期5卷 571-582页

作者： Travis W.Murphy jiayuan Sheng Lynette B.Naler Xueyang Feng Chang lu Department of Chemical Engineering Virginia TechBlacksburgVA 24061USA Department of Biological Systems Engineering Virginia TechBlacksburgVA 24061USA

Therapeutic proteins have recently received increasing attention because of their clinical ***,most therapeutic proteins are produced on a large scale using various cell culture ***,storing and transporting these therapeutic proteins at low temperatures makes their distribution expensive and problematic,especially for applications in remote *** this end,an emerging solution is to use point-of-care technologies that enable immediate and accessible protein production at or near the patient’s *** we present the development of“Therapeutics-On-a-Chip(TOC)”,an integrated microfluidic platform that enables point-of-care synthesis and purification of therapeutic *** used fresh and lyophilized materials for cell-free synthesis of therapeutic proteins on microfluidic chips and applied immunoprecipitation for highly efficient,on-chip protein *** first demonstrated this approach by expressing and purifying a reporter protein,green fluorescent ***,we used TOC to produce cecropin B,an antimicrobial peptide that is widely used to control biofilmassociated *** successfully synthesized and purified cecropin B at 63 ng/μl within 6 h with a 92%purity,followed by confirming its antimicrobial functionality using a growth inhibition *** TOC technology provides a new platform for point-of-care production of therapeutic proteins at a clinically relevant quantity.

关键词： potential. synthesis enable

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短舱泄压门流场对排放特性影响的数值模拟

航空动力学报 2023年第10期38卷 2338-2348页

作者：马率刘钒季佳圆邓阳张露中国空气动力研究与发展中心计算空气动力研究所四川绵阳621000 中国航发商用航空发动机有限责任公司上海200241

在采用NACA TN4007报告中的试验数据验证了CFD方法正确性的基础上,通过计算研究了不同来流马赫数、总压比、挡板开启角度对挡板排放特性的影响规律,并通过流场分析了形成这些规律的原因。结果表明:当总压比大于一定值后,相同总压比下排... 详细信息

在采用NACA TN4007报告中的试验数据验证了CFD方法正确性的基础上,通过计算研究了不同来流马赫数、总压比、挡板开启角度对挡板排放特性的影响规律,并通过流场分析了形成这些规律的原因。结果表明:当总压比大于一定值后,相同总压比下排放系数(DFR)随来流马赫数的增加而下降,是因为在排放通道形成壅塞流量受限后所致。而在不同总压比下,排放系数随挡板阀开启角度增大而发生复杂变化趋势,究其原因是因为挡板阀开启角度变大造成排放通道实际最小喉道位置和型线发生变化,导致最小几何面积处的平均马赫数在不同速度区间调整变化,同时挡板上表面发生分离后的分离涡回流如果进入到最小截面处,还会造成排放流量的减小。

关键词：短舱挡板泄压门排放特性总压比排放系数壅塞