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Parametric equations for notch stress concentration factors of rib—deck welds under bending loading

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Frontiers of Structural and Civil Engineering 2021年第3期15卷 595-608页

作者： Qiudong WANG Bohai JI Zhongqiu FU yue yao College of Civil and Transportation Engineering Hohai UniversityNanjing210098China

The effective notch stress approach for evaluating the fatigue strength of rib-deck welds requires notch stress concentration factors obtained from complex finite element *** improve the efficiency of the approach,the notch stress concentration factors for three typical fatigue-cracking modes(i.e.,root-toe,root-deck,and toe-deck cracking modes)were thoroughly investigated in this ***,we developed a model for investigating the effective notch stress in rib-deck ***,we performed a parametric analysis to investigate the effects of multiple geometric parameters of a rib-deck weld on the notch stress concentration *** this basis,the multiple linear stepwise regression analysis was performed to obtain the optimal regression functions for predicting the notch stress concentration ***,we employed the proposed formulas in a case *** notch stress concentration factors estimated from the developed formulas show agree well with the finite element analysis *** results of the case study demonstrate the feasibility and reliability of the proposed *** also shows that the fatigue design curve of FAT225 seems to be conservative for evaluating the fatigue strength of rib-deck welds.

关键词： notch stress concentration factor rib—deck weld parametric analysis regression analysis parametric equation

Supercapacitor characteristic of La-doped Ni(OH)_2 prepared by electrodeposition

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Rare Metals 2009年第2期28卷 132-136页

作者： Shao Guangjie yao yue Zhang Shipin He Pei Yanshan Univ Coll Environm & Chem Engn State Key Lab Metastable Mat Sci & Technol Qinhuangdao 066004 Peoples R China

Samples of lanthanum-doped nickel hydroxide were prepared by electrodeposition method. The structure and electrochemical properties of the samples were studied by X-ray diffraction and a home-made open three-electrode cell system,respectively. The results show that the deposition process of Ni(OH)2 and La(OH)3 is mainly controlled by electrochemical polarization,which makes it easy to form uniform fine crystals. In addition,La(OH)3 is not a separate phase and lanthanum ions are doped into Ni(OH)2 crystal la...

关键词： nickel hydroxide lanthanum doping supercapacitor electrodeposition

Synthesis of reusable NH_(2)-MIL-125(Ti)@polymer monolith as efficient adsorbents for dyes wastewater remediation

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Green Chemical Engineering 2023年第4期4卷 439-447页

作者： Peng yao Yang Liu Xue Tang Shuxiang Lu Zhen Li yue yao College of Chemical Engineering and Materials Science Tianjin University of Science and TechnologyTianjin300457China

NH_(2)-MIL-125(Ti)is a Ti-MOFs(MOFs:metal-organic frameworks)with high adsorption properties and is therefore widely used for wastewater ***,the powdered MOF material suffers from the disadvantages of being difficult to separate and being potentially wasted due to easy agglomeration,which limits its application in practical ***,a mesoporous Ti-MOF/polymer(PEG,PVA,and PAM)monolithic material was prepared by freeze casting in liquid nitrogen(-196℃)as an adsorbent for wastewater *** composites could be easily picked up with tweezers and used for recovery *** results such as XRD,BET,FT-IR,and SEM proved the successful synthesis of Ti-MOF/*** tests using 100 mg/L methylene blue(MB)simulated wastewater showed that the Ti-MOF/PEG monolithic material had the best adsorption *** order of adsorption was Ti-MOF@PEG10(747.4 mg/g)>Ti-MOF@PVA10(687.4 mg/g)>Ti-MOF@PAM10(633.7 mg/g)>NH_(2)-MIL-125(Ti)(571.4 mg/g).The effects of polymer dosage,different pollutants(methylene blue,methyl orange,indigo,actual textile wastewater),pH,anions,and cations on the adsorption effect of Ti-MOF/polymer were also *** was demonstrated that all the above pollutants were well adsorbed by this Ti-MOF/polymer in the pH range *** adsorption isotherms and kinetic data are fully consistent with the Langmuir and pseudo-secondary *** suggests that the adsorption between the pollutant and the adsorbent is a chemical *** studies indicate that the adsorption process is exothermic and *** work provides the potential methods to fabricate Ti-MOF/polymer monolith to avoid the pollution from powdery adsorbents that could be practical applications.

关键词： Adsorption NH_(2)-MIL-125(Ti) Freeze-casting method Methylene blue Polymers Liquid nitrogen

Probative Values and Their Affecting Factors of Criminal Investigation Records

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Journal of Forensic Science and Medicine 2019年第2期5卷 112-117页

作者： Jun‑yao yue School of Law Zhengzhou University of AeronauticsZhengzhouChina

Following improvements in evidential thinking,more questions have been raised about the probative values of criminal investigation records;therefore,there is an urgent need to investigate the prominent problems with this system for keeping investigation notes and *** binding 2013 Criminal Procedural Law of the People’s Republic of China lists the victim’s statement,defendant’s confession or defence,inspection,examination,identification,and investigation notes as statutory ***,these criminal investigation records are naturally legally admissible as evidenced in criminal justice ***,the Miranda rules of the United States,which guarantee the defendant’s right to silence,have not been established in China's ***,the objectivity of those kinds of criminal investigation records can be questioned during cross‑*** and systematic research methods were used to examine the probative values and their affecting factors in criminal investigation *** results show that it is not easy to obtain the full probative value of criminal investigation records because it involves analyses of issues such as understanding the notes,procedures,and methods in making the records,as well as the reform of related systems,such as transplanting the Miranda rules to secure the defendant’s right to silence and the presence of *** in this way can we expect evidence used in criminal investigation records to be used scientifically by ensuring that evidence of criminal acts are kept free from irrational contamination and resolve the existing related problems in judicial practice.

关键词： Affecting factors criminal litigation evidence investigation records probative value

Analysis on the synergistic effect of sustainable development of coal industry under 1.5 ℃ scenario

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Advances in Climate Change Research 2018年第2期9卷 130-137页

作者： SHI yue-yao SUN Jian WU Li-Xin Research Institute of Strategic Planning China Coal Research Institute Beijing 100013 China Sinopec Research Institute of Petroleum Engineering Beijing 100101 China

Based on the coal demand under the 1.5 ℃ scenario, the amount of coal production in China was estimated in this study. According to the mutual relationship between the factors influencing coal production, an econometric model was constructed based on simultaneous equations, and the synergistic effect of each factor on the coal industry was estimated under the 1.5 ℃ scenario. Then, predictions were respectively made in the five aspects： coal production, coal science and technology progress, employment number, safe production level, and occupational health level, in different scenarios from 2016 to 2050. The results showed that before 2040, the comprehensive negative effect of the 1.5 ℃ situation is more than or equals to the positive effect. The 1.5 ℃ scenario has the biggest negative impact on employment, whose solution should be the focus. By 2050, the positive effects of the 1.5℃ scenario exceed the negative effect because of the enhancement in technical level and in the attention given to the whole production. Safety is improved, and health defects decline and the most obvious positive effect is on the ecological environment. The decrease of coal production will reduce the ecological environmental damage and significantly improve the ecological environment. In general, the prediction of 1.5 ℃ scenario promotes the increase of scientific production capacity and promotes the orderly development of coal. It has strengthened the safety and health protection degree, made the coal industry more efficient and competitive, and avoided or reduced the impact of coal development on the ecological environment and achieved environmental friendliness. However, the 1.5 ℃ situation also increases the employment pressure of the society, which affects the economic development of the major coal producing areas, but the situation can be overcome through the transformation and upgrading of the region. Finally, the impacts of various factors under the 1.5 ℃ scenario were evaluated thr

关键词： 1.5℃ scenario Synergistic effect Effect monetization

Suadimins D—J,Monoterpenoid Indole-Quinoline and Bisindole Alkaloids from Melodinus suaveolens

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Chinese Journal of Chemistry 2023年第18期41卷 2296-2304页

作者： Xin-Hua Gao Pei-Qian Wu yao-yue Fan Bin Zhou Jian-Min yue State Key Laboratory of Drug Research Shanghai Institute of Materia MedicaChinese Academy of Sciences555 Zuchongzhi RoadShanghai201203China shandong Laboratory of Yantai Drug Discovery Bohai Rim Advanced Research Institute for Drug DiscoveryYantaiShandong 264117China Research Units of Discovery of New Drug Lead Molecules Chinese Academy of Medical SciencesShanghai 201203China

Comprehensive Summary,Compounds 1—12,including seven complex monoterpenoid indole-quinoline and bisindole alkaloids,suadimins D—J(1—7)with previously unreported carbon-carbon linkages,were isolated and identified from the twigs and leaves of Melodinus *** structures were elucidated by a combination of diverse methods,especially the extensive spectroscopic data analysis and electric circular dichroism(ECD)*** cytotoxicity of these compounds against three cancer cell lines was evaluated,some of which showed moderate activities with IC50 values ranging from 2.4 to 8.0μM.

关键词： Melodinus suaveolens Alkaloids Dimerization Structure elucidation ECD calculations Cytotoxic activity

Geological Structure and Dynamics of the Yinggehai Active Rift Basin,South China Sea

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Journal of Earth Science 2023年第6期34卷 1732-1743页

作者： yue yao Shaobin Guo Xiaopeng Li Xiaobo Zhao Shenglin He College of Environmental Science and Engineering Tongji UniversityShanghai 200092China The Administrative Centre for China's Agenda 21(ACCA21) Beijing 100038China School of Energy Resources China University of Geosciences(Beijing)Beijing 100083China School of Earth Sciences and Spatial Information Engineering Hunan University of Science and TechnologyChangsha 411100China School of Earth Resources China University of GeosciencesWuhan 430074China Zhanjiang Branch of CNOOC Ltd. Zhanjiang 524057China

The Yinggehai Basin is a unique NNW-trending petroliferous basin in the northwestern South China *** paper mainly utilized stratigraphic,tectonic and seismic data by characterizing the geological structures and conducting the geo-mechanical analysis to study the formation,evolution and dynamics of the Yinggehai *** study indicates that the Ailaoshan-Truong Son extruded terrane is composed of multiple secondary extruded *** Red River fault zone,located within the Qiangtang-Simao-Yinggehai mantle flow channel and basin zone,experienced transform-type sinistral strike-slip motion before the basin forming stage and formed a NW-trending extruded mantle uplift,which activated the Yinggehai *** experiencing the rift depression,fault depression,and fault subsidence,the basin eventually formed large-scale,thick sedimentation features with ideal hydrocarbon-forming conditions at the end of the ***,the basin dynamically transformed and entered a period of tectonic superposition,reworking,and thermal *** of the NNW thrust sinistral strike-slip fault zone on the northern Hanoi sub-basin complicated the basin *** the Pliocene,the southern Yinggehai main basin has been transformed into an extensional dextral strike-slip environment that hosted numerous mud *** thin crust and high geothermal gradient provide favorable conditions for the large-scale accumulation of natural gas.

关键词： Yinggehai Basin Ailaoshan-Truong Son extruded terrane mantle flow channel active rift geodynamics naturalgas

Bimetallic Pt–Ru covalently bonded on carbon nanotubes for efficient methanol oxidation

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International Journal of Minerals,Metallurgy and Materials 2023年第9期30卷 1816-1823页

作者： Ting Zhang Wanzong Wang Zheng Ma Lei Bai yue yao Dongqing Xu School of Chemistry and Material Engineering Anhui Science and Technology UniversityFengyang 233100China School of Life and Health Science Anhui Science and Technology UniversityFengyang 233100China

Platinum-based nanocomposites have been considered as one of the most promising catalysts for methanol oxidation reactions(MORs), which yet still suffer from low electrochemical activity and electron-transfer properties. Apart from van-der-Waals heterostructures,herein, we report a novel nanocomposite with the structure of Pt–Ru bimetallic nanoparticles covalently-bonded onto multi-walled carbon nanotubes (MWCNTs)(Pt–Ru@MWCNT), which have been successfully fabricated via a facile and green synthesis method. It is demonstrated that the Pt–Ru@MWCNT nanocomposite possesses much enhanced electrocatalytic activity with the electrochemical active surface area(ECSA) of 110.4 m^(2)·g^(-1)for Pt towards MOR, which is 2.67 and 4.0 times higher than those of 20wt%commercial Pt@C and Pt-based nanocomposite prepared by other method, due to the improved electron-transfer properties originated from M–O–C covalent bonds. This work provides us a new strategy for the structural design of highly-efficient electrocatalysts in boosting MOR performance.

关键词： bimetallic Pt-Ru nanocomposite high loaded functionalized multi-walled carbon nanotubes methanol oxidation green hydrothermal synthesis

Resources allocation in an Intserv/Diffserv integrated EPON system

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The Journal of China Universities of Posts and Telecommunications 2009年第3期16卷 108-113,121页

作者： LIU Qiong LI Hui JI yue-feng QIAO yao-jun Key Laboratory of Optical Communications and Lightwave Technologies Beijing University of Posts and Telecommunications Beijing 100876 China

As one of the most promising next-generation access network （EPON） should pay more attention to its quality of service （QoS）, techniques, the user-oriented Ethernet passive optical network However, now the EPON adopts mostly differentiated services model （Diffserv） that only provides quality control on traffic aggregation, whereas, the quality of user session cannot be guaranteed when the network is overloaded with substantial connections. This article proposes to apply integrated services model （Intserv） in Diffserv-based EPON, which uses per-flow processing to guarantee QoS. In the simulation, a framework of combined Diffserv and Intserv model is employed in an EPON system, with a dynamic bandwidth allocation algorithm that adapts to it. The simulation results demonstrate that the EPON system with the combined models can provide more flexible, various control for user-oriented service quality.

关键词： QoS Intserv Diffserv resource reservation