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Combustion efficiency test method in scramjet engine

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航空动力学报 2014年第12期29卷 2862-2867页

作者： GUO rui-qing li Feng WANG Yun-lei L Fu-guo SHANG Shou-tang TANG zheng-fu School of Energy and Power Engineering Beijing University of Aeronautics and Astronautics Combustion Design Office Shenyang Engine Design and Research InstituteAviation Industry Corporation of China

A scramjet engine combustion efficiency measure system was *** combustion efficiency was measured by chromatography method,and the results of chromatography method were compared with those of temperature *** results indicate that the combustion efficiency measured by chromatography method was 80.7%,lower than the combustion efficiency of 84.5%measured by temperature method;the combustion efficiency could be measured more precisely by chromatogram method than by temperature *** combustion efficiency measure system based on chromatogram method can work well,and thus can be used to measure the combustion efficiency of scramjet engine.

关键词： supersonic combustion test combustion efficiency sampling analysis sampling probe

Characterization of bonding property in asphalt pavement interlayer: A review

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Journal of Traffic and Transportation Engineering(English Edition) 2021年第3期8卷 374-387页

作者： Kai Yang rui li School of Highway Chang'an UniversityXi'an 710064China Department of Civil Construction and Environment EngineeringNorth Carolina State UniversityRaleighNC 27606USA

Higher requirements are put forward for interlayer bonding property with the increase of traffic load, including bearing capacity and durability. Typical diseases caused by insufficient adhesion between layers are slippage cracking, de-bonding and pavement deformation. The correct characterization of bonding property becomes necessary with evolving concerns of interlayer failure and material innovations. In the past forty years, many researches have focused on the evaluation of interlayer bonding property, and some valuable conclusions have been drawn. In this review, the mechanism, evaluation method and influencing factors of the interlayer bond strength are reviewed. The common test equipment can be classified into the shear, pull-off and torsion test. Different influence factors are analyzed including tack coat property, temperature, asphalt aging and surface condition. It is recommended to select the appropriate tack coat rate, and apply the tack coat under the conditions of clean, dry, high surface texture and good compaction. However, the interlayer failure mechanism and the interaction between the different influencing factors need to be further studied. The future work can focus on the correlation between different test methods and evaluation parameters, which would address the lack of harmonization or consistency among various evaluation approaches. Meanwhile, it is significant to add the evaluation of interlayer bonding property into the system of pavement design.

关键词： Interlayer bonding Asphalt pavement Interface strength Tack coat Influencing factors

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Data Mining Ontology Development for High User Usability

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Wuhan University Journal of Natural Sciences 2006年第1期11卷 51-56页

作者： li Yu-hua LU zheng-ding SUN Xiao-lin WEN Kun-mei li rui-xuan College of Computer Science and Technology Huazhong University of Science and Technology Wuhan 430074Hubei China

This paper mainly introduces the development and implementation of the user centered data mining service ontology on Universal Knowledge Grid （UKG）. UKG is an ontology-based grid architecture model to build large-scale distributed knowledge discovery system on the grid. The data mining ontology services are the main service offering by UKG. It can meet the user requirements of knowledge discovery in different domains and different hierarchies and make the system exoteric, extensible and high usable. A data min- ing solution for money laundering is introduced.

关键词： data mining ontology usability universal knowledge grid

A novel 3-phenylpropylamine intercalated molecular bronze with ultrahigh layer spacing as a high-rate and stable cathode for aqueous zinc-ion batteries

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Fundamental Research 2021年第4期1卷 425-431页

作者： rui li Huamin Zhang Jingwang Yan Qiong zheng Xianfeng li Dalian Institute of Chemical Physics Chinese Academy of Sciences457 Zhongshan RoadDalian 116023China University of Chinese Academy of Sciences Beijing 100039China

Rechargeable aqueous zinc-ion batteries(AZIBs)have gained increasing attention owing to their low cost and high *** hydrated vanadium oxides exhibit rich redox chemistry and open layer architecture,the insertion of multivalent Zn2+during cycling inevitably leads to host collapse and severe vanadium ***,various ions and conducting polymers have been introduced into the interlayer to produce vanadium bronzes with a robust crystal ***,these pre-intercalated vanadium bronzes demonstrate limited improvement and still face the challenge of metal ion displacement and confusing reaction ***,we report a novel molecular bronze with intercalated 3-phenylpropylamine for use as an AZIB cathode,which produces an ultrahigh interlayer of 18.0Å.The cathode delivered an improved capacity of 420 mAh g^(−1)at 0.1 A g^(−1),an impressive rate capability of 158 mAh g^(−1)at 35 A g^(−1),and an outstanding lifespan with a capacity retention of 94%over 1200 cycles at 2A g^(−1).Furthermore,the reaction mechanism of H+/Zn2+co-insertion was investigated in *** work proves that this strategy is universal for vanadium oxide bronzes and opens a new avenue for the fabrication of novel molecular bronzes as advanced AZIB cathodes.

关键词： Zinc ion battery Vanadium-based cathode Organic-inorganic hybrid material Ultrahigh interlayer

Sinusoidal obstruction syndrome related to tacrolimus following liver transplantation

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Hepatobiliary & Pancreatic Diseases International 2020年第3期19卷 299-302页

作者： li li Yue Dong rui-Dong li Yi-Feng Tao Cong-Huan Shen zheng-Xin Wang Department of General Surgery Huashan HospitalFudan University12 Middle Urumqi RoadShanghai 200040China Institute of Organ Transplantation Fudan UniversityShanghai 200040China Department of Pharmacy Huashan HospitalFudan UniversityShanghai 200040China

To the Editor:Sinusoidal obstruction syndrome(SOS),also known as venoocclusive disease,is characterized by fibrotic occlusion of small hepatic veins and congestion of sinusoids[1].This syndrome is mainly observed in hematopoietic stem cell transplantation(HSCT)and its incidence in liver transplantation(LT)ranges from 1.9%to 2.9%[2,3].Although rare,severe SOS following LT can cause liver graft dysfunction with poor prognosis[3].

关键词： Sinus obstruction liver

Observation of specific ion effects in humus aggregation process

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Pedosphere 2021年第5期31卷 736-745页

作者： rui TIAN Xinmin liU Xiaodan GAO rui li Hang li Chongqing Key Laboratory of Soil Multi-scale Interfacial Process College of Resources and EnvironmentSouthwest UniversityChongqing 400715(China)

Specific ion effects play a vital role in a variety of colloidal and interfacial ***,few studies have reported the specific ion effects in the humus aggregation process,which strongly influence the transport and fate of environmental *** this study,soil humus colloids were prepared and characterized,and the specific ion effects on humus aggregation in electrolyte solutions were investigated at a variety of concentrations and pH values using dynamic light scattering *** energy(ΔE),which is known to reflect the dynamics and stability of a colloidal system,was used to quantitatively characterize the specific ion *** results showed that given ΔE value of 2.48×10^(3) J mol^(-1) at pH 3.0,the electrolyte concentrations were 91.6,58.2,3.8,and 0.8 mmol L^(-1) for Na^(+),K^(+),Mg^(2+),and Ca_(2+),respectively,thus indicating significant specific ion effects in the humus aggregation *** importantly,decreasing the electrolyte concentrations increased the differences in the ΔE value between two cation species with the same valence(i.e.,ΔE_(Na)-ΔE_(K) and ΔE_(Mg)-ΔE_(Ca)),while increasing the pH increased the magnitude of ΔE_(Mg)-ΔE_(Ca).However,the classic Derjaguin,Landau,Verwey,and Overbeek(DLVO)theory and the double layer theory,as well as the currently widely used ionic hydration and dispersion effects,failed to predict the experimentally observed increase in the specific ion effects with decreasing electrolyte concentrations in a quantitative *** results have implications for the necessity of involving specific ion effects for a better understanding of humus aggregation and interactions in aqueous and soil systems.

关键词： Derjaguin Landau Verwey and Overbeek theory double layer theory ionic dispersion ionic hydration supramolecular aggregates

Editorial for special issue on nanostructured high-entropy materials

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International Journal of Minerals,Metallurgy and Materials 2020年第10期27卷 1309-1311页

作者： Yong Zhang rui-xuan li Beijing Advanced Innovation Center of Materials Genome Engineering State Key Laboratory for Advanced Metals and MaterialsUniversity of Science and Technology BeijingBeijing 100083China Qinghai Provincial Engineering Research Center of High Performance light Metal Alloys and Forming Qinghai UniversityXining 810016China Shunde Graduate School University of Science and Technology BeijingFoshan 528399China

It is our great honor as Guest Editors of the journal International Journal of Minerals Metallurgy and Materials(IJMMM)to present the special issue on the topic of“Nanostructured High-Entropy Materials”.It provides the most recent research developments in the preparation and properties of high entropy materials,as well as their potential *** a long time,nanostructured materials have played a decisive role in human civilization,and the requirements for their comprehensive performance have become higher and higher,especially the integrated circuit(IC)chips which are the integration of lots of nanostructured devices.

关键词： entropy journal honor

Fecal microbiota transplantation for treatment of non-alcoholic fatty liver disease:Mechanism,clinical evidence,and prospect

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World Journal of Gastroenterology 2024年第8期30卷 833-842页

作者： Xiao-Xia Qiu Sheng-li Cheng Yan-Hui liu Yu li rui Zhang Nan-Nan li zheng li Research and Education Department Shulan(Hangzhou)Hospital Affiliated to Zhejiang Shuren University Shulan International Medical CollegeHangzhou 310022Zhejiang ProvinceChina Anhui Provincial Hospital The First Affiliated Hospital of University of Science and Technology of ChinaHefei 230000Anhui ProvinceChina Department of Clinical Pharmacy Anhui Provincial Children’s HospitalHefei 230000Anhui ProvinceChina Department of Pharmacy Taihe County People’s Hospital of Anhui ProvinceFuyang 236600Anhui ProvinceChina Department of Pharmacy The Second People’s Hospital of HefeiHefei Hospital Affiliated to Anhui Medical UniversityHefei 230000Anhui ProvinceChina University of Science and Technology of China The First Affiliated Hospital of University of Science and Technology of ChinaHefei 230001Anhui ProvinceChina Jiangsu Engineering Research Center of Cardiovascular Drugs Targeting Endothelial Cells College of Health SciencesSchool of Life SciencesJiangsu Normal UniversityXuzhou 221000Jiangsu ProvinceChina

The population of non-alcoholic fatty liver disease(NAFLD)patients along with relevant advanced liver disease is projected to continue growing,because currently no medications are approved for *** microbiota transplantation(FMT)is believed a novel and promising therapeutic approach based on the concept of the gut-liver axis in liver *** has been an increase in the number of pre-clinical and clinical studies evaluating FMT in NAFLD treatment,however,existing findings diverge on its ***,we briefly summarized the mechanism of FMT for NAFLD treatment,reviewed randomized controlled trials for evaluating its efficacy in NAFLD,and proposed the prospect of future trials on FMT.

关键词： Non-alcoholic fatty liver disease Fecal microbiota transplantation Randomized controlled trial Mechanism Efficacy

Indexing Techniques of Distributed Ordered Tables： A Survey and Analysis

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Journal of Computer Science & Technology 2018年第1期33卷 169-189页

作者： Chen Feng Chun-Dian li rui li State Key Laboratory of Computer Architecture Institute of Computing Technology Chinese Academy of Sciences Beijing 100190 China~TT ' University of Chinese Academy of Sciences Beijing 100049 China Tencent Inc. Beijing 100080 China

Many NoSQL （Not Only SQL） databases were proposed to store and query on a huge amount of data. Some of them like BigTable, PNUTS, and HBase, can be modeled as distributed ordered tables （DOTs）. Many additional indexing techniques have been presented to support queries on non-key columns for DOTs. However, there was no comprehensive analysis or comparison of these techniques, which brings troubles to users in selecting or proposing a proper indexing technique for a certain workload. This paper proposes a taxonomy based on six indexing issues to classify indexing techniques on DOTs and provides a comprehensive review of the state-of-the-art techniques. Based on the taxonomy, we propose a performance model named QSModel to estimate the query time and storage cost of these techniques and run experiments on a practical workload from Tencent to evaluate this model. The results show that the maximum error rates of the query time and storage cost are 24.2% and 9.8% respectively. Furthermore, we propose IndexComparator, an open source project that implements representative indexing techniques. Therefore, users can select the best-fit indexing technique based on both theoretical analysis and practical experiments.

关键词： database Not Only SQL (NoSQL) range query indexing