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14篇 您的检索式:作者名="Jinbin Wu"
    题名 作者 年代 出处 被引量
1The impact of climate change and human activities on streamflow and sediment load in the Pearl River basin显示文摘This paper uses monthly streamflow, suspended sediment concentration, and meteorological data to examine the impact of human activity and climate change on streamflow and sediment load in the Pearl River basin from the 1950s to the 2000s. The influences of climate change and human activities on hydrological processes were quantitatively evaluated using the Mann–Kendall abrupt change test and power rating curves. The results showed that:(1) abrupt changes and turning points in streamflow occurred in 1963, 1983, and 1991 which were found to be consistent with global ENSO events and volcanic eruptions. However, abrupt changes in sediment load showed significant spatial differences across the Pearl River basin. For the Xijiang River, an abrupt change in sediment load occurred in 2002, and after 2007 the change becomes significant at the 95% confidence level. At Beijiang and Dongjiang, abrupt changes in sediment load occurred in 1998 and 1988, respectively.(2) The time series of sediment load data was divided into four periods according to abrupt changes. The contribution of climate change and human activities is different in the different rivers. For the Xijiang River, compared with the first period, climate change and human activities contributed 83% and 17%, respectively, to the increasing sediment load during the second period. In the third period, the variation of sediment load followed a decreasing trend. The contribution from climate change and human activities also changed to t236% and -136%, respectively. In the fourth period, climate change and human activities contributed -32% and t132%, respectively. Meanwhile, For the Beijiang River, climate change and human activities contributed 90% and 10% in the second period, the contribution of climate change increased to t115% and human activities decreased to -15% in the third period. In the fourth period, the value for climate change decreased to t36% and human activities increased to t64%. For the Dongjiang River, the contribution of human activities was from 74.5% to 90%, and the values for climate change were from 11% to 25%. Therefore, the effect of human activity showed both spatial and temporal differences, and it seems likely that the decreased sediment load will continue to be controlled mainly by human activities in the future.Chuangshou Wu Changchen Ji Benwei Shi Yaping Wang Jianhua Gao Yang Yang Jinbin Mu 2019International Journal of Sediment Research2019,34,4:12
2Corrosion Mechanism of Corrosion-Resistant Steel Developed for Bottom Plate of Cargo Oil Tanks显示文摘A new type of corrosion-resistant steel consisting of ferrite and bainite phases was developed for cargo oil tanks of crude oil tankers. The corrosion rate of this new steel was 0.22 mm/a, which was equivalent to ca. 1/5 of the criterion ( ≤ 1 mm/a) for corrosion-resistant steels. The composition and element distribution of the corrosion products were investigated by micro-Raman spectrometry and energy dispersive spectrometer. The results demonstrated that the corrosion product was composed of α-FeOOH, Fe3O4 and a continuous Cu enrichment layer. This kind of corrosion product was protective to the steel matrix and accounted for the enhancement of the corrosion resistance of the new developed steel.Feilong SUN Xiaogang LI Fan ZHANG Xuequn CHENG Cheng ZHOU Nianchun WU Yuqun YIN Jinbin ZHAO 2013Acta Metallurgica Sinica(English Letters)2013,26,3:9
3The protective effect and crucial biological pathways analysis of Trametes lactinea mycelium polysaccharides on acute alcoholic liver injury in mice based on transcriptomics and metabonomics显示文摘Trametes lactinea mycelia polysaccharides(TLMPS)have a wide range of bioactivities.The potential mechanisms of action of TLMPS against acute alcohol-induced liver injury in vivo were investigated by analyzing the physical and chemical properties of TLMPS and its protective effects on a mouse model of alcoholic liver injury.TLMPS protected the liver against alcohol-induced injury,as evidenced by the reduced alcohol-induced elevation of the liver index,serum biochemical indices,and maintenance of hepatic morphology.Potential mechanisms were analyzed using transcriptome and metabolome analyses.The transcriptome data revealed the involvement of many differentially expressed genes in chemical carcinogenesis,drug metabolism,and metabolism of xenobiotics by cytochrome P450.The metabolome analysis revealed that TLMPS significantly regulated specific metabolites in the liver,including organic acids,lipids,nucleosides,and organic oxygen compounds.KEGG enrichment analysis revealed the signifi cant involvement of different metabolites in choline metabolism,ATP-binding cassette transporters,and glycerophospholipid metabolism.Assessment of the changes in gene expression and metabolites revealed the significantly different expression of several genes encoding key enzymes and metabolites in choline metabolism pathway.The collective fi ndings confi rmed that choline metabolism plays an important role in the protective effects of TLMPS against acute alcoholic liver injury.Jinbin Hao Liyun Ye Guoliang Meng Yanjiao Song Junsheng Fu Xiaoping Wu 2021Food Science and Human Wellness2021,10,4:2
4Suppression of morphine withdrawal by electroacupuncture in rats:dynorphin and kappa-opioid receptor implicated显示文摘Wu Liuzhen Cui Cailian Tian Jinbin 1999Brain Res1999,851,12:1
5Enhanced dynamic deformability and strengthening effect via twinning and microbanding in high density NiCoFeCrMoW high-entropy alloys显示文摘High density alloys with enhanced deformability and strength are urgently required in energy,military and nuclear industries,etc.In this work,we present a new kind of NiCoFeCrMoW high entropy alloys(HEAs)which possess higher densities and sound velocities than copper.We systematically investigate the phase structure,quasi-static tensile,dynamic compression and related deformation mechanism of these HEAs.It is shown that single FCC or FCC+μdual phases were formed in the HEAs depending on Mo and W content and annealing temperature.Excellent quasi-static tensile and dynamic compression properties have been achieved for these HEAs,e.g.Ni_(30)Co_(30)Fe_(21)Cr_(10)W_(9)HEA annealed at 1573 K exhibited a yield and ultimate tensile strength and elongation of~364 MPa,~866 MPa and~32%,respectively,in quasi-static test;a yield strength of~710 MPa and no fracture under the dynamic strain rate of 4100 s^(-1).Superior strain rate sensitivity(SRS)of yield strength than that of previously reported FCC HEAs have been evidenced.The dynamic stress-strain constitutive relation can be described by the modified Johnson-Cook model.As for the dynamic deformation mechanism,it is envisaged that the regulation of stacking fault energy and Peierls barrier in current HEAs resulted in occurrences of abundant nanoscale deformation twins and microbands during high strain rate compression.The synergistic microbanding and twinning effectively contributes to the enhanced dynamic deformability and strengthening effect.Besides,the interactions of dislocations with precipitates,stacking faults(SFs)with twins,and between SFs also contribute to extraordinary work-hardening capacity.Xuli Liu Yidong Wu Yansong Wang Jinbin Chen Rui Bai Lei Gao Zhe Xu William Yi Wang Chengwen Tan Xidong Hui 2022Journal of Materials Science & Technology2022,,32:1
6An improved social force model (ISFM)-based crowd evacuation simulation method in virtual reality with a subway fire as a case study显示文摘Crowd evacuation simulation using virtual reality(VR)is significant for digital emergency response construction.However,existing evacuation simulation studies suffer from poor adaptation to complex environments,inefficient evacuations,and poor simulation effects and do not fully consider the impacts of specific disaster environments on crowd evacuation.To more realistically express the crowd evacuation results obtained under the influence offire environments and the subjective consciousness of pedestrians in subway stations,we designed a dynamic pedestrian evacuation path planning method under multiple constraints,analysed the influences of an‘environmental role’and a‘subjective initiative’on crowd evacuation,established an improved social force model(ISFM)-based crowd evacuation simulation method in VR,developed a prototype system and conducted experimental analyses.The experimental results show that the crowd evacuation time of the ISFM is affected by the disaster severity.In simulation experiments without disaster scenarios,the improved model’s crowd evacuation efficiency improved by averages of 12.53%and 15.37%over the commercial Pathfinder software and the original social force model,respectively.The method described herein can effectively support real-time VR crowd evacuation simulation under multiexit and multifloor conditions and can provide technical support for emergency evacuation learning and management decision analyses involving subwayfires.Jinbin Zhang Jun Zhu Pei Dang Jianlin Wu Yuxuan Zhou Weilian Li Lin Fu Yukun Guo Jigang You 2023International Journal of Digital Earth2023,16,1:1
7Preparation of Fe-Based Bulk Amorphous Materials and Its Application to Sensors显示文摘The study of recent years found that big bulk amorphous alloys were formed for some multi-element compositions at rapid cooling speed such as Zr-, La-, Fe-, Mg-based alloys with wide undercooled liquid phase field and high trend of forming glass.( ATx = crystallization temperature Tx - glass transformation temperature Tg) Bulk amorphous copper mold upper suction casting with minus pressure while some new technical processes and adding new elements such as Co, Nb, Ca, etc.were used to improve magnetic properties and other performances of the materials.The results show that Fe-based bulk amorphous alloys have low coercive force and high permeability, which are successfully applied to magnetoelectric sensors with temperature ranges between -45 ℃ and 150 ℃ by special design of magnetic circuits.Sun Xiaohua Wu Jinbin Zhao Zengqi Zhao Jun Sun Guangjie Liu Changsheng 2004Journal of Rare Earths2004,22,z1:0
8Numerical Analysis of Residual Strength in the Perforated Casing of Ultra Deep Wells显示文摘A three-dimensional model for the numerical simulation of casing-cement behavior is used to investigate residual strength in the perforated casing of ultra deep wells.The influence of the hole diameter,hole density and phase angle on the residual strength of the casing under non-uniform stress and fracturing conditions is revealed through the consideration of different perforation parameters.It is shown that the residual strength of the casing increases with the hole diameter and periodically changes with the hole density;the phase angle is the main factor that affects the residual strength of the perforated casing,and the perforation should be avoided in the direction of the minimum principal stress to reduce stress concentration at the perforation hole.Moreover,as shown by a companion orthogonal experiment,the descending order of influence of the different influential parameters is:phase angle,hole diameter,hole density and the thickness of casing.Yanxian Wu Shouming Zhong Zhigang Guan Lin Song Kun Li Jiarui Sun Yuqiang Xu Maochuan Tu Chaobin Fan Jinbin Yang 2023Fluid Dynamics & Materials Processing2023,19,1:0
9Eco-sustainability Assessment of Building Projects Based on Eco-footprint显示文摘The life-cycle eco-footprint computing model of building projects was established in the study. It contained the eco-footprint in 4 aspects during the lifecycle: consumed energy, consumed resource, emitted carbon dioxide and produced solid waste. Space efficiency of life-cycle eco-footprint index was proposed and used to assess the eco-sustainability of building projects. Then, the eco-footprint and ecosustainability of 4 different structure types(brick-concrete bungalow, multi-storey brick-concrete, multistorey steel-concrete, high-rise steel-concrete) for residential building in severely cold areas were investigated. The results indicated that: 1) Compared with bungalow, high-rise building with relatively smaller shape coefficient and window-wall ratio had higher eco-sustainability; 2) For the buildings with the same storey, shape coefficient and window-wall ratio, steel-concrete building had higher eco-sustainability than brickconcrete building; 3) High-rise steel-concrete structure had the greatest eco-sustainability during the 4 different bui lding structures, so it was more suitable to promote.CHEN Yan WANG Yanyu WU Xianguo TENG Jiaying ZHONG Jinbin 2017Journal of Landscape Research2017,9,4:0
10CLE Peptides in Vascular Development显示文摘The plant vascular system consists of two conductive tissues, phloem and xylem. The vascular meristem, namely the (pro-)cambium, is a stem-cell tissue that gives rise to both xylem and phloem. Recent studies have revealed that CLAVATA3/Embryo Surrounding Region-related (CLE) peptides function in establishing the vascular system through interaction with phytohormones. In particular, TDIF/CLE41/CLE44, phloem-derived CLE peptides, promote the proliferation of vascular cambium cells and prevent them from differentiating into xylem by regulating WOX4 expression through the TDR/PXY receptor. In this review article, we outline recent advances on how CLE peptides function in vascular developmentin concert with phytohormones through mediating cell-cell communication. The perspective of CLE peptide signaling in vascular development is also discussed.Yi Qiang Jinbin Wu Huibin Han Guodong Wang 2013Journal of Integrative Plant Biology2013,55,4:0
11The azimuthal currents in the ion-driven magnetic nozzle显示文摘Ion-driven magnetic nozzles(Ti>Te)are designed as intrinsic parts of cutting-edge propulsive technologies such as variable specific impulse magnetoplasma rockets(VASIMRs)and applied-field magnetoplasmadynamic thrusters.Employing a two-dimensional axisymmetric particle-in-cell(PIC)code,in the ion-driven magnetic nozzle,the compositions and distributions of azimuthal currents in different axial regions are investigated under various inlet ion temperatures Ti0 and found to differ dramatically from that in the electron-driven magnetic nozzles.Previously reported to be all paramagnetic and vanishing under a high magnetic field,the azimuthal currents resulting from the E 3 B drift are shown to turn diamagnetic and sustain a considerable magnitude when Ti0 is considered.The previously reported profile of diamagnetic drift current is altered by the introduction of inlet ion temperature,and the paramagnetic part is significantly suppressed.Moreover,a wide range of paramagnetic currents appear downstream due to the inward detachment of ions,which can also be reduced by increasing inlet ion temperature.Albeit considered in this paper,the azimuthal currents resulting from grad-B and curvature drift are still negligible in all cases of interest.The magnitude of diamagnetic azimuthal currents increases with amplifying Ti0,indicating a clear physical image of energy transformation from ion thermal energy to the directed kinetic energy through electromagnetic processes in the magnetic nozzle.Additionally,the magnetic inductive strength also has noticeable impacts on the azimuthal currents,the current magnitude tends to decrease as the magnetic field increases,and over-increment of it may result in larger divergence angles and lower nozzle efficiency.Zhiyuan Chen Yibai Wang Haibin Tang Junxue Ren Min Li Peng Wu Jinbin Cao 2022Propulsion and Power Research2022,11,4:0
12A dynamic holographic modelling method of digital twin scenes for bridge construction显示文摘Holographic projection technology can provide a more intuitive and efficient visualization effect for a digital twin bridge construction scene.However,pre-rendering methods in the existing research work are usually used to implement holographic visualization,which is static display.The above-mentioned methods for static display have many shortcomings,such as poor adaptability,low rendering efficiency and lack of real-time.A dynamic holographic modelling approach is proposed for the augmented visualization of digital twin scenes for bridge construction.Firstly,a dynamic segmentation algorithm with adaptive screen size was designed to high-efficiently generate holographic scenes.Secondly,a motion blur control method was designed to improve the rendering efficiency of holographic scenes according to human visual characteristics.Finally,a prototype system was developed,and the corresponding experimental analysis was completed.The experimental results show that the method proposed in this article can support adaptive screen size image segmentation and real-time generation of holographic scenes for bridge construction.The amount of scene data can be reduced to more than 30%,which significantly improves rendering efficiency and reduces glare.Jianlin Wu Jun Zhu Jinbin Zhang Pei Dang Weilian Li Yukun Guo Lin Fu Jianbo Lai Jigang You YaKun Xie Ce Liang 2023International Journal of Digital Earth2023,16,1:0
13The Phytophthora effector Avh94 manipulates host jasmonic acid signaling to promote infection显示文摘The oomycete pathogen Phytophthora sojae is a causal agent of soybean root rot.Upon colonization of soybeans,P.sojae secretes various RXLR effectors to suppress host immune responses,supporting successful infection.Previous research has demonstrated that the RXLR effector Avh94 functions as a virulence effector,but the molecular mechanism underlying its role in virulence remains unknown.Here,we demonstrate that Avh94 overexpression in plants and pathogens promotes Phytophthora infection.Avh94 interacts with soybean JAZ1/2,which is a repressor of jasmonic acid(JA)signaling.Avh94 stabilizes JAZ1/2 to inhibit JA signaling and silencing of JAZ1/2 enhances soybean resistance against P.sojae.Moreover,P.sojae lines overexpressing Avh94 inhibit JA signaling.Furthermore,exogenous application of methyl jasmonate improves plant resistance to Phytophthora.Taken together,these findings suggest that P.sojae employs an RXLR effector to hijack JA signaling and thereby promote infection.Yao Zhao Bo Yang Huawei Xu Jinbin Wu Zhiyang Xu Yuanchao Wang 2022Journal of Integrative Plant Biology2022,64,11:0
14Averrhoa carambola extractive inhibits breast cancer via regulating CEPT1 and LYPLA1显示文摘Liposomes have been widely exploited as a drug delivery system in treating tumors because of their advantage to enhance anti-tumor efficacy and reduce side effects. In this study, the tumor-targeted 2-dodecyl-6-methoxycyclohexa-2,5-diene-1,4-dione(DMDD, i.e., Averrhoa carambola extractive) liposomes(HA/TN-DLP) were conducted and assessed. HA/TN-DLP showed controllable drug loading(up to 83%)with high stability. In vitro and in vivo studies showed good cell uptake behavior and high inhibition rate of breast cancer compared to free DMDD. HA/TN-DLP might be the suitable for DMDD due to its better advantages in delivery, penetrability, and targeting-tumor capability. For in vivo mouse model tests,HA/TN-DLP effectively inhibited tumor growth compared to free DMDD. Further analyses indicated that HA/TN-DLP inhibited the glycerophospholipid metabolism pathway by reducing the biosynthesis of phosphatidylcholine and 1-acyl-sn-glycero-3-phosphocholine through regulating the expressions of CEPT1 and LYPLA1, and inhibited tumor cell growth by regulating the PI3K/Akt and NF-κ B signaling pathways. In conclusion, the obviously enhanced antitumor effect further demonstrated that HA/TN-DLP may be a promising tumor-targeting agent.Xiaolin Zhang Xiuli Liu Luhui Qin Chao Tang Yu Huo Jinbin Wei Ming Chen Yutong Gao Xiaoping Zhang Yani Wu Yongxiang Zhao Renbin Huang Liping Zhong Bing Wang 2023Chinese Chemical Letters2023,34,3:0
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