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Effects of combined antibiotics on nitrification, bacteria and antibiotic resistance genes in activated sludge: Insights from legacy effect of antibiotics

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Journal of Environmental Sciences 2023年第9期131卷 96-110页

作者： Zhong-Xing Zhang Xiao-Yan Fan Xing Li Yu-Xi Gao jun-ru zhao Faculty of Architecture Civil and Transportation EngineeringBeijing University of TechnologyBeijing 100124China

The effect of combined antibiotics exposure on nitrogen removal,microbial community assembly and proliferation of antibiotics resistance genes(ARGs)is a hotspot in activated sludge ***,it is unclear that how the historical antibiotic stress affects the subsequent responses of microbes and ARGs to combined *** this study,the effects of combined sulfamethoxazole(SMX)and trimethoprim(TMP)pollution on activated sludge under legacy of SMX or TMP stress with different doses(0.005-30 mg/L)were investigated to clarify antibiotic legacy *** activity was inhibited under higher level of combined exposure but a high total nitrogen removal(∼70%)*** on the full-scale classification,the legacy effect of past antibiotic stress had a marked effect on community composition of conditionally abundant taxa(CAT)and conditionally rare or abundant taxa(CRAT).Rare taxa(RT)were the keystone taxa in the microbial network,and the responses of hub genera were also affected by the legacy of antibiotic *** bacteria and genes were inhibited by the antibiotics and aerobic denitrifying bacteria(Pseudomonas,Thaurea and Hydrogenophaga)were enriched under legacy of high dose,as were the key denitrifying genes(napA,nirK and norB).Furthermore,the occurrences and co-selection relationship of 94 ARGs were affected by legacy ***,some shared hosts(eg.,Citrobacter)and hub ARGs(eg.,mdtD,mdtE and acrD)were ***,antibiotic legacy could affect responses of activated sludge to combined antibiotic and the legacy effect was stronger at higher exposure levels.

关键词： Antibiotics Antibiotic resistance genes(ARGs) Combined pollution Full-scale classification Legacy effect

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A Systemic Review of Autologous Fat Grafting Survival Rate and Related Severe Complications

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Chinese Medical Journal 2015年第9期128卷 1245-1251页

作者： Nan-Ze Yu Jiu-Zuo Huang Hao Zhang Yang Wang Xiao-jun Wang ru zhao Ming Bai Xiao Long Division of Plastic and Reconstructive Surgery Peking Union Medical College Hospital Beijing 100730 China

Objective：Clinical application ofautologous fat grafting （AFG） is quickly *** the widely acceptance,long-term survival rate （SR） of AFG remains a question not yet ***,although rare,severe complications related to AFG including vision loss,stroke even death could be seen in the *** Sources：A comprehensive research of PubMed database to june 2013 was performed according to guidelines of the American Society of Plastic Surgeons Fat Graft Task Force Assessment *** were screened using predetermined inclusion and exclusion *** Selection：Data collected included patient characteristics,surgical technique,donor site,recipient site,graft amount,and quantified measurement *** cohorts were pooled,and SR was *** the severe complications were also summarized according to the different clinical ***：Of 550 articles,16 clinical articles and 10 animal studies met the inclusion criteria and provided quantified measurement ***,596 patients were *** varied from 34％ to 82％ in breast and 30-83％ in the facial *** mice were applied to investigate human fat grafting SR （38.3-52.5％ after 15 weeks）.Rabbits were commonly used to study animal AFG SR （14.00-14.56％ after 1-year）.Totally,21 severe complications were reported,including death （2）,stroke （10）,vision loss （11,8 of which accompanied with stroke）,sepsis （3）,multiple abscess （1） and giant fat necrotic cyst （2）.Ten of these complications happened within 10 ***：There is no unified measurement method to evaluate fat graft SR until now and no clinical evidence to show better SR according to different donor and recipient *** mass index change between pre-and postoperation may be the bias factor in evaluating fat *** embolisms of the ophthalmic artery and the middle cerebral artery are the most severe complication of AFG and still lack of effective treatment.

关键词： Autologous Fat Grafting Complication Fat Survival

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Resection and repair of large abdominal wall lesions in gynecologic patients

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Chinese Medical Journal 2013年第9期126卷 1673-1677页

作者： LIU Zhu-feng WANG Jin-hui CUI Bing-qian FAN Qing-bo WANG Xiao-jun zhao ru SONG Ke-xin Department of Obstetrics and Gynecology Department of Plastic Surgery Peking Union Medical College Hospital Peking Union Medical College Chinese Academy of Medical Science Beijing 100730 China

Background The techniques of resection and repair of large lesions in the abdominal wall are very challenging in the area of gynecology. We explored the techniques of resection and plastic surgical repair of large abdominal wall lesions in gynecologic patients. Methods Twenty-six patients with large lesions in the abdominal wall underwent resection by the gynecologists and repair through abdominal plasty and V-Y plasty with or without fascia patch grafting by the gynecologists or plastic surgeons from March 2003 to October 2010. Results All patients had a history of cesarean section. One patient had an infected sinus tract after cesarean section, one patient had an inflammatory nodule, and the others had lesions of endometriosis, including one cancer. The average largest lesion diameter was （4.79 ± 4.18） cm according to the ultrasonography results. The lesions of all patients were completely resected with pretty abdominal contour. A polypropylene biological mesh was added to the fascia in 20 patients. One patient underwent groin flap repair, and one underwent V-Y advanced skin flap repair on the left of the incision to relieve the suture tension. Conclusions Multi-department cooperation involving the gynecology and plastic surgery departments, and even the general surgery department, is essential for patients with large lesions in the abdominal wall. This cooperative effort enabled surgeons to completely resect large lesions. Abdominal wall plastic surgical repair can ameliorate large wounds of the abdominal wall.

关键词： abdominal wall endometriosis reconstructive surgical procedures abdominoplasty

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考虑内部散点的区间型符号数据的回归分析

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管理科学学报 2018年第4期21卷 114-126页

作者：郭均鹏赵茹李汶华天津大学管理与经济学部天津300072

研究通过对样本"点"数据打包形成的区间型符号数据的回归分析.针对现有区间数回归分析只利用区间数的端点信息这一问题,分析如何充分利用原始的样本"点"数据信息,即区间数的内部散点信息.首先从理论上推导了当假设原始样本点数据误差项... 详细信息

研究通过对样本"点"数据打包形成的区间型符号数据的回归分析.针对现有区间数回归分析只利用区间数的端点信息这一问题,分析如何充分利用原始的样本"点"数据信息,即区间数的内部散点信息.首先从理论上推导了当假设原始样本点数据误差项满足回归分析所假定的三条性质时,区间数据回归分析的误差项也满足这三条性质.然后,在考虑散点的区间型符号数据描述性统计量的基础上,提出了一种新的区间型符号数据回归分析的参数估计方法.随之给出了区间预测方法.最后选取常用的CCRM作为对比算法,分别通过随机模拟和实例分析,验证了文中方法的有效性.

关键词：回归分析区间型符号数据描述统计量

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基于UWB的工业控制系统的PA-MAC协议

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系统仿真学报 2008年第24期20卷 6791-6794页

作者：王军陈未如赵玉秀沈阳化工学院沈阳110142

由于UWB技术信道获取时间长,而在工业控制系统中短包通信较多,使得UWB应用到工业控制系统中性能严重下降。针对这一问题,在分析了CSMA/CA协议应用于基于UWB的工业控制系统中存在的问题的基础上,提出了基于UWB的工业控制系统专用的PA-MA... 详细信息

由于UWB技术信道获取时间长,而在工业控制系统中短包通信较多,使得UWB应用到工业控制系统中性能严重下降。针对这一问题,在分析了CSMA/CA协议应用于基于UWB的工业控制系统中存在的问题的基础上,提出了基于UWB的工业控制系统专用的PA-MAC协议,设计了适应工业控制系统的缓存管理方法、包合并策略及合并包确认机制。通过建模仿真,分析了CSMA/CA协议和PA-MAC协议应用于基于UWB的工业控制系统中的相关指标,结果表明PA-MAC协议能够有效地提高时隙利用率,降低了平均时延。

关键词： PA-MAC 缓存管理包合并超宽带

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I^2C总线测试系统的设计与实现

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仪表技术与传感器 2016年第12期 118-120页

作者：张军才茹伟赵腊才胡宇凡中航工业西安航空计算技术研究所陕西西安710068

针对I^2C总线通信直接测试方法不足问题,提出了一种I^2C总线测试系统的方案,设计了一种具体的I^2C总线测试系统。I^2C总线测试系统可实现对任意通信协议的测试,同时可根据被测单元通信模式的需要完成主从通信模式的自动切换。实际应用表... 详细信息

针对I^2C总线通信直接测试方法不足问题,提出了一种I^2C总线测试系统的方案,设计了一种具体的I^2C总线测试系统。I^2C总线测试系统可实现对任意通信协议的测试,同时可根据被测单元通信模式的需要完成主从通信模式的自动切换。实际应用表明,测试系统可快速完成对被测单元的I^2C总线通信协议测试,缩短驻留应用的I^2C通信协议开发周期,降低开发成本。

关键词： I^2C总线测试系统主从模式

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Moment Redistribution Effect of the Continuous Glass Fiber Reinforced Polymer-Concrete Composite Slabs Based on Static Loading Experiment

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Structural Durability & Health Monitoring 2025年第1期19卷 105-123页

作者： zhao-jun Zhang Wen-Wei Wang Jing-Shui Zhen Bo-Cheng Li De-Cheng Cai Yang-Yang Du Hui Huang Offshore Oil Engineering Co.Ltd. Tianjin300461China Department of Bridge Engineering School of TransportationSoutheast UniversityNanjing211189China

This study aimed to investigate the moment redistribution in continuous glass fiber reinforced polymer(GFRP)-concrete composite slabs caused by concrete cracking and steel bar yielding in the negative bending moment *** experimental bending moment redistribution test was conducted on continuous GFRP-concrete composite slabs,and a calculation method based on the conjugate beam method was *** composite slabs were formed by combining GFRP profiles with a concrete layer and supported on steel beams to create two-span continuous composite slab *** methods,epoxy resin bonding,and stud connection,were used to connect the composite slabs with the steel *** experimental findings showed that the specimen connected with epoxy resin exhibited two moments redistribution phenomena during the loading process:concrete cracking and steel bar yielding at the internal *** contrast,the composite slab connected with steel beams by studs exhibited only one-moment redistribution phenomenon throughout the loading *** the concrete at the internal support cracked,the bending moment decreased in the internal support section and increased in the midspan *** the steel bars yielded,the bending moment further decreased in the internal support section and increased in the mid-span *** GFRP profiles do not experience cracking,there was no significant decrease in the bending moment of the mid-span *** test specimens experienced compressive failure of concrete at the mid-span *** results showed good agreement between the calculated and experimental values of bending moments in the mid-span section and internal support *** proposed model can effectively predict the moment redistribution behavior of continuous GFRP-concrete composite slabs.

关键词： Moment redistribution GFRP-concrete composite slabs bending moment experimental study analysis model

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Reverse modulation of defect density of Ce-MOF-808 by solventassisted ligand exchange for dicyclopentadiene hydrogenation

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Science China Chemistry 2025年

作者： Danfeng zhao Fajie Hu rushuo Li Xinmeng Xu zhaokun Wang Zuoshuai Xi jun Tong Xiubing Huang Ge Wang Advanced Innovation Center for Materials Genome Engineering Beijing Key Laboratory of Function Materials for Molecule & Structure Construction School of Materials Science and Engineering University of Science and Technology Beijing

Defect engineering is a pivotal strategy for tailoring the electronic structure and physicochemical properties of catalysts, yet the straightforward manipulation of defect density in porous materials presents a current challenge. In this work, we achieved precise control over the coordination unsaturated site（CUS） content and pore architecture of Ce-MOF-808 by employing 2-fluorobenzoic acid（2-FBA） as a modifier. Leveraging the p Kadisparities among three ligands（1,3,5-tricarboxylic benzoic acid,formic acid, and 2-FBA）, we preserved the spn topology of Ce-MOF within an aqueous system, while realizing partial substitution of the auxiliary ligands and saturation of the CUS. The amount of 2-FBA was negatively correlated with the number of ligand defects, and the consequent decrease in Ce3+content and the increase in the number of ligand linkages also induced crystal structure transformation. The modulation of the defect structure was correlated with the catalytic performance of dicyclopentadiene（DCPD） hydrogenation reaction, in which Ce-MMF0.15, constructed by the modulation of 0.15 mol amount of 2-fluorobenzoic acid, exhibited an optimal ligand defect density and micro-mesoporous structure, enabling almost complete conversion of DCPD at 100 ℃ and 2 MPa. This article also elucidates the correlation between the regulation of defect density and the accessibility of frustrated Lewis pair（FLP） active sites, guiding the application of novel porous intrinsic FLP materials in hydrogenation catalysis.

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Liquid refractive index measurement method based on orthogonal polarization laser self-mixing interference

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Optoelectronics Letters 2025年

作者： zhao Yan WANG Haipeng DU Shengzhi TONG Jigang KANG jun School of Electrical Engineering and Automation， Tianjin University of Technology Tianjin Key Laboratory for Control Theory and Applications in Complicated Systems Department of Electrical Engineering， Tshwane University of Technology

In this paper， a novel method combining orthogonal polarization laser self-mixing interference is proposed. The method utilizes a rotating cuvette to measure the refractive index of liquids at different concentrations. The cuvette is filled with the liquid to be measured and rotated by a certain angle. The change in the number of interference fringes， caused by comparing an empty cuvette with a liquid-filled cuvette， is used to calculate the refractive index of the liquid. A four-fold logic subdivision algorithm is then used to improve measurement resolution. The experimental results show that for pure water and different NaCl and glucose solutions concentrations， the average relative errors are 0.47%， 0.59%， and 2.17%， respectively， with the maximum relative error within ±2.54%. The standard deviation of all solutions is less than 3.4%.

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历史虚无主义的表征、根源及防范化解研究

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新疆师范大学学报（哲学社会科学版） 2025年第2期46卷 152-158页

作者：赵军魁甘肃政法大学马克思主义学院甘肃兰州730070 甘肃政法大学思想政治教育研究中心甘肃兰州730070

历史虚无主义以误导性的历史观及价值取向对历史理解和民族文化自信构成消解与威胁。文本坚持历史唯物主义和大历史观,深入探讨历史虚无主义的表征、根源及其对社会文化的危害,并提出相应的防范化解策略。通过加强历史教育与研究、坚持... 详细信息

历史虚无主义以误导性的历史观及价值取向对历史理解和民族文化自信构成消解与威胁。文本坚持历史唯物主义和大历史观,深入探讨历史虚无主义的表征、根源及其对社会文化的危害,并提出相应的防范化解策略。通过加强历史教育与研究、坚持文化传承与创新、抓好媒体监管与引导、重视国际交流与合作等途径有效防范化解历史虚无主义,以正确的理论和舆论引领社会思潮,筑牢全国各族人民共同思想政治基础,增强道路自信、理论自信、制度自信和文化自信。

关键词：历史虚无主义表现形态根源与危害应对策略

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