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Frontiers of Structural and Civil Engineering 2023年第1期17卷 122-137页

作者： Junqi HUANG qing JIANG Xun CHONG Xianguo ye Caihua LIU School of Civil and Hydraulic Engineering Hefei University of TechnologyHefei 230009China Anhui Civil Engineering Structures and Materials Laboratory Hefei 230009China

In this study,a novel diagonally inserted bar-type basalt fiber reinforced polymer(BFRP)connector was proposed,aiming to achieve both construction convenience and partially composite behavior in precast concrete sandwich panels(PCSPs).First,pull-out tests were conducted to evaluate the anchoring performance of the connector in concrete after exposure to different ***,direct shear tests were conducted to investigate the shear performance of the *** the test on the individual performance of the connector,five façade PCSP specimens with the bar-type BFRP connector were fabricated,and the out-of-plane flexural performance was tested under a uniformly distributed *** investigating parameters included the panel length,opening condition,and boundary *** results obtained in this study primarily indicated that 1)the bar-type BFRP connector can achieve a reliable anchorage system in concrete;2)the bar-type BFRP connector can offer sufficient stiffness and capacity to achieve a partially composite PCSP;3)the boundary condition of the panel considerably influenced the out-of-plane flexural performance and composite action of the investigated façade PCSP.

关键词： precast concrete sandwich panel basalt fiber reinforced polymer pull-out performance shear performance out-of-plane flexural performance

Investigation on hierarchical control for driving stability and safety of intelligent HEV during car-following and lane-change process

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Science China(Technological Sciences) 2022年第1期65卷 53-76页

作者： ZHOU YaZhou WANG RuoChen DING RenKai SHI DeHua ye qing School of Automotive and Traffic Engineering Jiangsu UniversityZhenjiang 212013China Automotive Engineering Research Institute Jiangsu UniversityZhenjiang 212013China

The longitudinal and lateral coordinated control for autonomous vehicles is fundamental to achieve safe and comfortable driving *** at this for hybrid electric vehicles(HEV)during the car-following(CF)and lane-change(LC)process while accelerating,a hierarchical control strategy for vehicle stability control is *** new approach is different from the conventional hierarchical *** the basis of model predictive control(MPC)theory,a two-layer MPC controller is designed at the top level of the control *** upper layer is a linear time-varying MPC(LTV-MPC),while the lower layer is a hybrid MPC(HMPC).For the LTV-MPC controller,a control-oriented linear discrete model for HEV is established,which integrates the dynamic model with three degrees of freedom(DOF)and the car-following *** lower-layer HMPC controller is designed on the basis of the analysis for HEV hybrid characteristics and the modelling for the mixed logic dynamic(MLD)model of the HEV *** for the bottom level,a control plant including the HEV powertrain model and the 7 DOF nonlinear dynamics of the vehicle body is *** addition,the system stability is proven.A deep fusion of vehicle dynamics control and energy management is *** with LC-ACC control and conventional ACC control,the simulation and the hardware-in-the-loop(HIL)test results under different driving scenarios show that the proposed hierarchical control strategy can effectively maintain lateral stability and safety under severe driving ***,the HEV powertrain output torque and the gear-shift point are coordinated and controlled by the HMPC controller.

关键词： hybrid electric vehicle hierarchical control model predictive control mixed logical dynamic lane-change

Promotional effect of cobalt doping on catalytic performance of cryptomelane-type manganese oxide in toluene oxidation

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Journal of Environmental Sciences 2023年第4期126卷 263-274页

作者： Ning Dong Mengyue Chen qing ye Dan Zhang Hongxing Dai Key Laboratory of Beijing on Regional Air Pollution Control Department of Environmental ScienceSchool of Environmental and Chemical EngineeringFaculty of Environment and LifeBeijing University of TechnologyBeijing 100124China R&D Department of Atmospheric Prevention and Control Technology Guangdong Suncere Technology Co.Ltd.Guangzhou 510220China Beijing Key Laboratory for Green Catalysis and Separation Key Laboratory of Beijing on Regional Air Pollution ControlKey Laboratory of Advanced Functional MaterialsEducation Ministry of Chinaand Laboratory of Catalysis Chemistry and NanoscienceDepartment of Environmental Chemical EngineeringSchool of Environmental and Chemical EngineeringFaculty of Environment and LifeBeijing University of TechnologyBeijing 100124China

The cryptomelane-type manganese oxide (OMS-2)-supported Co (x Co/OMS-2;x=5,10,and15 wt.%) catalysts were prepared via a pre-incorporation *** as-prepared materials were used as catalysts for catalytic oxidation of toluene (2000 ppmV).Physical and chemical properties of the catalysts were measured using the X-ray diffraction (XRD),Fourier transform infrared spectroscopic (FT-IR),scanning electron microscopic (SEM),X-ray photoelectron spectroscopy (XPS),and hydrogen temperature-programmed reduction (H_(2)-TPR)*** all of the catalysts,10Co/OMS-2 performed the best,with the T90%,specific reaction rate at 245℃,and turnover frequency at 245℃ (TOFCo) being 245℃,1.23×10^(-3)moltoluene/(gcat·sec),and 11.58×10^(-3)sec-1for toluene oxidation at a space velocity of 60,000mL/(g·hr),*** excellent catalytic performance of 10Co/OMS-2 were due to more oxygen vacancies,enhanced redox ability and oxygen mobility,and strong synergistic effect between Co species and OMS-2 ***,in the presence of poisoning gases CO_(2),SO_(2)or NH_(3),the activity of 10Co/OMS-2 decreased for the carbonate,sulfate and ammonia species covered the active sites and oxygen vacancies,*** the activation treatment,the catalytic activity was partly *** good low-temperature reducibility of 10Co/OMS-2 could also facilitate the redox process accompanied by the consecutive electron transfer between the adsorbed O_(2)and the cobalt or manganese *** the oxidation process of toluene,the benzoic and aldehydic intermediates werefirst generated,which were further oxidized to the benzoate intermediate that were eventually converted into H_(2)O and CO_(2).

关键词： Cryptomelane-type manganese oxide Cobalt doping Volatile organic compound Toluene oxidation

分流叶片长度及周向位置对氢气离心压气机气动性能的影响

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天津理工大学学报 2025年第1期41卷 29-35页

作者：陈春刘原野韩剑英童志庭天津理工大学天津市先进机电系统设计与智能控制重点实验室天津理工大学机电工程国家级实验教学示范中心

为了探究分流叶片长度及周向位置对氢气离心压气机性能的影响机制，利用NUNECA软件对不同分流叶片长度及周向位置的氢气离心压气机模型展开了数值模拟计算，同时深入探究了压气机特性线和内部流场，得到了不同分流叶片长度及周向位置下... 详细信息

为了探究分流叶片长度及周向位置对氢气离心压气机性能的影响机制，利用NUNECA软件对不同分流叶片长度及周向位置的氢气离心压气机模型展开了数值模拟计算，同时深入探究了压气机特性线和内部流场，得到了不同分流叶片长度及周向位置下氢气离心压气机的性能规律。研究结果表明：在叶轮内部添加分流叶片可以降低主叶片压力面的载荷，从而使氢气离心压气机的性能有了一定程度的提高。但是过长的分流叶片会导致与气流的接触面积增大，使得流道内摩擦损失增加，同时也会导致进口出现堵塞，从而降低了压气机的效率和压比。随着分流叶片长度及周向位置系数的增加，叶轮的总压比和等熵效率特性线整体呈现出先上升后下降的趋势。通过对内部流场进行分析，发现当分流叶片长度系数为0.8,周向位置系数为0.5时，叶轮气动性达到最好。

关键词：氢气离心压气机分流叶片数值模拟气动性能

Nonparametric Estimation of Extreme Conditional Quantiles with Functional Covariate

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Acta Mathematica Sinica,English Series 2018年第10期34卷 1589-1610页

作者： Feng Yang HE ye Bin CHENG Tie Jun tong Department of Statistics Ji'nan University Guangzhou 510632 P. R. China Glorious Sun School of Business and Management Donghua University Shanghai 250001 P. R. China Department of Mathematics Hong Kong Baptist University Hong Kong P. R. China

Estimation of the extreme conditional quantiles with functional covariate is an important problem in quantile regression. The existing methods, however, are only applicable for heavy-tailed distributions with a positive conditional tail index. In this paper, we propose a new framework for estimating the extreme conditional quantiles with functional covariate that combines the nonparametric modeling techniques and extreme value theory systematically. Our proposed method is widely applicable, no matter whether the conditional distribution of a response variable Y given a vector of functional covariates X is short, light or heavy-tailed. It thus enriches the existing literature.

关键词： Extreme conditional quantile extreme value theory nonparametric modeling functional covariate

Intravitreal conbercept injection with panretinal photocoagulation for high-risk proliferative diabetic retinopathy with vitreous hemorrhage

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International Journal of Ophthalmology(English edition) 2024年第6期17卷 1066-1072页

作者： Yao Xu qing ye Wei Shen Department of Ophthalmology the Fourth Affiliated Hospital of Soochow UniversitySuzhou 215000Jiangsu ProvinceChina Department of Ophthalmology Suzhou Kowloon HospitalShanghai Jiao Tong University School of MedcineSuzhou 215000Jiangsu ProvinceChina Department of Ophthalmology the First Affiliated Hospital of Soochow UniversitySuzhou 215000Jiangsu ProvinceChina

AIM:To assess the clinical efficacy and safety of combining panretinal photocoagulation(PRP)with intravitreal conbercept(IVC)injections for patients with high-risk proliferative diabetic retinopathy(HR-PDR)complicated by mild or moderate vitreous hemorrhage(VH),with or without diabetic macular edema(DME).METHODS:Patients diagnosed with VH with/without DME secondary to HR-PDR and received PRP combined with IVC injections were recruited in this retrospective *** establishing the patient’s diagnosis,an initial IVC was performed,followed by prompt administration of *** cases who significant bleeding persisted and impeded the laser operation,IVC was sustained before supplementing with *** the completion of PRP,patients were meticulously monitored for a minimum of six *** therapy and IVC injections were judiciously adjusted based on fundus fluorescein angiography(FFA)*** effect and the incidence of adverse events were ***:Out of 42 patients(74 eyes),29 were male and 13 were female,with a mean age of 59.17±12.74y(33-84y).The diabetic history was between 1wk and 26y,and the interval between the onset of visual symptoms and diagnosis of HR-PDR was *** affected eye received 2.59±1.87(1-10)IVC injections and underwent 5.5±1.02(4-8)sessions of *** these,68 eyes received PRP following 1 IVC injection,5 eyes after 2 IVC injections,and 1 eye after 3 IVC *** absorption of VH was observed in all 74 eyes 5-50wk after initial treatment,with resolution of DME in 51 eyes 3-48wk after initial treatment.A newly developed epiretinal membrane was noted in one *** acuity significantly improved in 25 *** complications such as glaucoma,retinal detachment,or endophthalmitis were ***:The study suggests that the combination of PRP with IVC injections is an effective and safe modality for treating diabetic VH in patients with HR-PDR.

关键词： conbercept panretinal photocoagulation high-risk proliferative diabetic retinopathy vitreous hemorrhage

Prominently Promoting the Formation of Poly(butylene adipate) α-Form Crystals by Coalescing from Inclusion Complex

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Chinese Journal of Polymer Science 2018年第7期36卷 866-870页

作者： Hai-Mu ye Xiao-tong Chen Ping Liu Na Yan Department of Materials Science and Engineering China University of PetroleumBeijing 102249China

We successfully use a co-precipitation method to prepare inclusion complex between poly（butylene adipate）（PBA） chains （guest component） and urea molecules （host component）. The PBA/urea inclusion complex is confirmed to adopt a hexagonal crystal modification with lattice parameters ofa = 8.14 A and c = 10.92 A, and the interaction between PBA chains and urea is van der Waals force. The singly isolated PBA chains are suggested to take some gauche conformation, which is different from the all-trans conformation in r-form PBA. Furthermore, we employ the isolated PBA chains which are uniformly pre-established in a specific conformation in urea channels to regulate the crystal form of PBA for the first time. After removing the host urea molecules, the coalesced PBA chains are found to solely crystallize into a-form crystals at different coalescing temperatures. By comparing the FTIR spectra, it is found that PBA chains in inclusion complex plausibly contain some similar conformers as those in a-form crystal, which is suggested to be the intrinsic reason for the sole formation of a-form crystals. This research proves that inclusion complex can be used as a very effective method to regulate polymorphism of semi-crystalline polymers.

关键词： Poly(butylene adipate) Inclusion complex Polymorphism Chain conformation

Application of Nanopowder to High Temperature Single Crystal Fiber Sensor

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Journal of Materials Science & Technology 1997年第4期13卷 364-366页

作者： Wang, YQ Wu, XJ ye, LH tong, LM Shen, YH ZHEJIANG UNIV DEPT PHYSHANGZHOU 310027PEOPLES R CHINA

ZrO2, CuO, Al2O3 and SiO2 mixed nanopowder was used to coat the head of sapphire single crystal fiber for improving the properties of high-temperature single crystal fiber sensor. The result indicates that the head coated with above mixed nanopowder shows better optical stability, shorter response time and higher thermal shock resistance, in comparison with the head coated with coarse-grained particles with the same chemical compositions.

关键词： Nanostructured materials

Old Master Zhu： in memory of virologist Guan-Fu Zhu

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Protein & Cell 2018年第9期9卷 749-751页

作者： qing ye Tao Jiang Cheng-Feng Qin Department of Virology State Key Laboratory of Pathogen and Biosecurity Beijing Institute of Microbiology and EpidemiologyBeijing 100071 China

Born in Dinghai County of Zhejiang province in June, 1926, Guan-Fu Zhu began to study at School of Medicine, tongji University, in October, 1946 （Fig. 1）. Then he moved to the Department of Bacteriology and Immunology of Peking Union Medical College in September, 1954, where he got his master degree under the supervision of Prof. Shao-Wen Xie, a renowned microbiologist and immunologist. In July, 1951, Mr. Zhu served as an assistant in teaching and research section of the Second Military Medical University of PLA. In January, 1958, he began to work at the Institute of Microbi- ology and Epidemiology, Academy of Military Medical Sci- ences, successively serving as a research assistant, assistant professor, associate professor and professor. Due to cardiovascular and cerebrovascular diseases, Mr. Guan- Fu Zhu unfortunately passed away on November 7th, 2015, at the age of 89.

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Efficacy of different analgesic or sedative drug therapies in pediatric patients with congenital heart disease undergoing surgery: a network meta-analysis

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World Journal of Pediatrics 2019年第3期15卷 235-245页

作者： Rui-Zhu Liu Bing-tong Li Guo-qing Zhao Department of AnesthesiOlOgy China—Japan Union Hospital of Jilin UniversityChangchun 130000China Department of Rheumatology and Immunology China—Japan Union Hospital of Jilin UniversityChangchun 130000China

Background Surgery is an effective therapy for congenital heart disease (CHD) and the management after surgery poses challenges for the clinical *** performed this network meta-analysis to enhance the corresponding evidence with respect to the relative efficacy of different drug treatments applied after the CHD *** Embase and PubMed were systematically retrieved to identify all published controlled trials investigating the effectiveness of drugs for patients up to 25 August,*** differences (MD),odds ratios and their 95% credible intervals (CrIs) were used to evaluate multi-aspect *** under cumulative ranking curve (SUCRA) was used to analyze the relative ranking of different treatments in each *** Compared to saline,all the drugs achieved better preference under the efficacy endpoints except fentanyl in *** for ventilator time,all drugs were more effective than saline while only the difference of dexmedetomidine was statistically obvious (MD =6.92,95% CrIs 1.77-12.54).Under the endpoint of ICU time,dexmedetomidine was superior to saline as well (MD =1.26,95% CrIs 0.11-2.45).When all the endpoints were taken into consideration and with the help of ranking probabilities and SUCRA values,fentanyl combined with dexmedetomidine was one of the recommended drugs due to its shorter time on ventilator and stay in hospital as well as lower *** Overall,based on the comprehensive consideration of all the endpoints,fentanyl combined with dexmedetomidine was considered to be the best-recommended clinical interventions among all the methods.

关键词： Congenital heart disease Dexmedetomidine Drug treatments Fentanyl Network meta-analysis