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10篇 您的检索式:作者名="Yalin Luo"
    题名 作者 年代 出处 被引量
1Double-composite rectangular truss bridge and its joint analysis显示文摘This paper describes a novel composite tubular truss bridge with concrete slab and concrete-filled rectangular chords. With concrete slab plus truss system and joints reinforced with concrete and Perfobond Leiste rib, double composite truss bridge proved to be a fairly suitable solution in negative moment area. Perfobond Leiste shear connector(PBL) is widely implemented in the composite structure for its outstanding fatigue resistance. In this pilot bridge, Perfobond Leister ribs(PBR) were installed in the truss girder's joints,which played double roles as shear connector and stiffener. An erection method and overall bridge structural analysis were then presented. Typical joints in the pilot bridge were selected to analyze the effect of PBR. Investigation of the effect of PBR in concretefilled tubular joints was elaborated. Comparison has revealed that concrete-filled tubular joints with PBR have much higher constraint capability than joints without PBR. For rectangular tubular truss, the punching shear force of the concrete filled joint with PBR is approximately 43% larger than that of the joint without PBR. Fatigue performance of the joint installed with PBR was improved, which was found through analysis of the stress concentration factor of joint. The PBR installed in the joints mitigated the stress concentration factor in the chord face. Therefore, the advantages of this new type of bridge are demonstrated, including the convenience of construction using rectangular truss, innovative concept of structural design and better global and local performances.Yongjian Liu Zhihua Xiong Yalin Luo Gao Cheng Ge Liu Jian Yang 2015Journal of Traffic and Transportation Engineering(English Edition)2015,2,4:8
2New practice in semaglutide on type-2 diabetes and obesity:clinical evidence and expectation显示文摘Obesity is an important risk factor of type 2 diabetes(T2D),which has become an important factor threatening human health.However,no perfect drug choice for obesity exists.Semaglutide is a kind of human glucagon-like peptide-1(GLP-1)analog that promotes insulin secretion while inhibiting glucagon secretion through a glucose concentration-dependent mechanism.GLP-1 can also delay stomach emptying and suppress appetite to help lose weight.This review summarizes clinical evidence of the semaglutide effect on T2D and obesity and establishes expectations on future clinical trials for obesity treatment.Yalin Liu Xianghang Luo 2022Frontiers of Medicine2022,16,1:2
3Internal Loads and Bioavailability of Phosphorus and Nitrogen in Dianchi Lake,China显示文摘Sediments have a significant influence on the cycling of nutrient elements in lake environments. In order to assess the distribution characteristics and estimate the bioavailability of phosphorus and nitrogen in Dianchi Lake, organic and inorganic phosphorus and nitrogen forms were analysed. The 210 Pb radiometric dating method was employed to study temporal changes in the phosphorus and nitrogen pools in Dianchi Lake. The result show that the total phosphorus(TP) and total nitrogen(TN) were both at high concentrations, ranging from 697.5–3210.0 mg/kg and 1263.7–7155.2 mg/kg, respectively. Inorganic phosphorus(IP) and total organic nitrogen(TON) were the main constituents, at percentages of 59%–78% and 74%–95%, respectively, in the sediments. Spatially, there was a decreasing trend in phosphorus and nitrogen contents from the south and north to the lake centre, which is related to the distribution pattern of local economic production. The burial rates of the various phosphorus and nitrogen forms increased in same spatially and over time. Particularly in the past two decades, the burial rates doubled, with that TN reached to 1.287 mg/(cm^2·yr) in 2014. As the most reactive forms, nitrate nitrogen(NO_3-N) and ammonia nitrogen(NH_4-N) were buried more rapidly in the south region, implying that the potential for releasing sedimentary nitrogen increased from north to south. Based on their concentrations and burial rates, the internal loads of phosphorus and nitrogen were analysed for the last century. A TP pool of 71597.6 t and a TN pool of 81191.7 t were estimated for Dianchi Lake. Bioavailable phosphorus and nitrogen pools were also estimated at 44468.0 t and 5429.7 t, respectively, for the last century.WU Yalin HUANG Tao HUANG Changchun SHEN Yinyin LUO Yang YANG Hao YU Yanhong LI Ruixiao GAO Yan ZHANG Mingli 2018Chinese Geographical Science2018,28,5:2
4Expression and characterization of dextransucrase gene dsrX from Leuconostoc mesenteroides in Escherichia coli 显示文摘Yang Yalin Luo Jin Wang Jianhua 2008Journal of Biotechnology2008,133,4:1
5The New Liu Cixin Literature:Science Fiction and the Third World Experience显示文摘Compared with pure literature,Liu Cixin's science fiction novels show a high degree of novelty.Due to his creative accommodation of third world experience and the Chinese cultural spirit of the 1950-70s,he is able to challenge the universal hegemony of the Enlightenment.The deep feelings of Liu Cixin's novels come from the'guerrilla'character of third world intellectuals who resisted colonization and guarded the country,a resistance derived from China's vanguard position in the third world independence movement.Liu Cixin's continuous writing of the story of weakness over power is not only a response to China's modern and contemporary situation,but also a borrowing from the revolutionary experience to imagine the possibility of another world for readers of thepost-revolutionary era.LUO Yalin 2020Frontiers of Literary Studies in China-Selected Publications from Chinese Universities2020,14,2:0
6Entrepreneurial Orientation,Knowledge creation process and New Product Development Performance显示文摘Shoujian Luo Yalin Yu 2015International English Education Research2015,,9:0
7A direct measurement method of quantum relaxation time显示文摘The quantum relaxation time of electrons in condensed matters is an important physical property,but its direct measurement has been elusive for a century.Here,we report a breakthrough that allows direct determination of quantum relaxation time at zero and non-zero frequencies using optical measurement.Through dielectric loss function,we connect bound electron effects to the physical parameters of plasma resonance and find an extra term of quantum relaxation time from inelastic scattering between bound electrons and conduction electrons at non-zero frequencies.We demonstrate here that the frequency-dependent inelastic polarization effect of bound electrons is the dominant contribution to quantum relaxation time of conduction electrons at optical frequencies,and the elastic polarization effect of bound electrons also dramatically changes the plasma resonance frequency through effective screening to charge carriers.Peng Zhang Haoqi Tang Chuanchuan Gu Hong Wang Guangfu Luo Yalin Lu X.-D.Xiang 2021National Science Review2021,8,4:0
8Investigations of structural phase transformation and THz properties across metal–insulator transition in VO_2/Al_2O_3epitaxial films显示文摘Vanadium dioxide(VO2) epitaxial thin films on(0001)-oriented Al2O3 substrates were prepared using radio frequency(RF) magnetron sputtering techniques.To study the metal-insulator-transition(MIT) mechanism and extend the applications of VO2 epitaxial films at terahertz(THz) band,temperature-dependent X-ray diffraction(XRD) and THz time domain spectroscopy of the VO2 epitaxial films were performed.Both the lattice constants and THz transmission exhibited a similar and sharp transition that was similar to that observed for the electrical resistance.Consequently,the MIT of the VO2/Al2O3 epitaxial films should be co-triggered by the structural phase transition and electronic transition.Moreover,the very large resistance change(on the order of 103) and THz response(with a transmission modulation ratio of 87%) in the VO2/Al2O3 epitaxial heterostructures are promising for electrical switch and electro-optical device applications.Mengmeng Yang Yuanjun Yang Bin Hong Yi Zhao Xiaoguang Li Yalin Lu Zhenlin Luo Chen Gao 2015Progress in Natural Science:Materials International2015,25,5:0
9Phenylformamidinium-enabled quasi-2D Ruddlesden-Popper perovskite solar cells with improved stability显示文摘Two-dimensional(2D)/quasi-2D perovskite solar cells(PSCs)incorporating organic spacer cations exhibit appealing ambient stability in comparison with their 3D analogs.Most reported organic spacer cations are based on ammonium,whereas formamidinium(FA^(+))has been seldom applied despite that FA has been extensively used in high-efficiency 3D PSCs.Herein,a novel FA-based organic spacer cation,4-chloro-phenylformamidinium(CPFA^(+)),is applied in quasi-2D Ruddlesden-Popper(RP)PSCs for the first time,and methylammonium chloride(MACl)is employed to promote crystal growth and orientation of perovskite film,resulting in high power conversion efficiency(PCE)with improved stability.Upon incorporating CPFA+organic spacer cation and MACl additive,high-quality quasi-2D CPFA_(2)MA_(n-1)Pb_(n)(I_(0.857)Cl_(0.143))_(3n+1)(n=9)perovskite film forms,exhibiting improved crystal orientation,reduced trap state density,prolonged carrier lifetime and optimized energy level alignment.Consequently,the CPFA_(2)MA_(n-1)Pb_(n)(I_(0.857)Cl_(0.143))_(3n+1)(n=9)quasi-2D RP PSC devices deliver a highest PCE of 14.78%.Moreover,the un-encapsulated CPFA-based quasi-2D RP PSC devices maintain~80%of its original PCE after exceeding 2000 h storage under ambient condition,whereas the 3D MAPb I3counterparts retain only~45%of its original PCE.Thus,the ambient stability of quasi-2D RP PSC devices is improved obviously relative to its 3D MAPb I3counterpart.Xingcheng Li Wanpei Hu Yanbo Shang Xin Yu Xue Wang Weiran Zhou Mingtai Wang Qun Luo Chang-Qi Ma Yalin Lu Shangfeng Yang 2022Journal of Energy Chemistry2022,31,3:0
10Formation patterns of Chang 9 oil reservoir in Triassic Yanchang Formation, Ordos Basin, NW China显示文摘Based on analysis of main controlling factors of Chang 9, the source rock, driving force of migration, migration and accumulation modes, reservoir forming stages and model and enrichment law of Chang 9 reservoir were examined. The study showed that the oil of Chang 9 reservoir in the Jiyuan and Longdong(Eastern Gansu) areas came primarily from the source rock of Chang 7 Member, but the oil of Chang 9 reservoir in the Zhidan area came primarily from the source rock of Chang 9 Member. There developed lithologic-structural oil reservoirs in Gufengzhuang-Mahuangshan area in northwest Jiyuan, structural-lithologic oil reservoirs in east Jiyuan, and lithologic reservoirs in Huachi–Qingcheng area and Zhidan area. The overpressure of Chang 7 Member was the driving force of oil migration. The burial history showed that Chang 9 Member experienced two stages of reservoir forming, the reservoir formed in the Late Jurassic was smaller in charging scope and scale, and the Early Cretaceous was the period when the source rock generated oil and gas massively and the Chang 9 reservoir came into being. Along with the tectonic movements, Chang 7 bottom structure turned from high in the west and lower in the East in the sedimentary stage to high in the east and lower in the west in the hydrocarbon accumulation stage and at last to gentle western-leaning monoclinal structure at present. In Early Cretaceous, the Chang 7 bottom structure was the lowest in the west of Huanxian-Huachi-Wuqi-Dingbian areas, so the oil migrated laterally towards the higher positions around after entering the reservoir. In the main reservoir forming period, Chang 7 bottom had an ancient anticline in Mahuangshan-Hongjingzi area of west Jiyuan, controlling the oil reservoir distribution in west Jiyuan.YAO Jingli ZHAO Yande LIU Guanglin QI Yalin LI Yuanhao LUO Anxiang ZHANG Xiaolei 2018Petroleum Exploration and Development2018,45,3:0
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