|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Seedling growth and metal accumulation of selected woody species in copper and lead/zinc mine tailings显示文摘A greenhouse pot experiment was conducted to evaluate the potential of selected woody plants for revegetation in copper (Cu) and lead/zinc (Pb/Zn) mine tailing areas.Five woody species (Amorpha fruticosa Linn,Vitex trifolia Linn.var.simplicifolia Cham,Glochidion puberum (Linn.) Hutch,Broussonetia papyrifera,and Styrax tonkinensis) and one herbaceous species (Sesbania cannabina Pers) were planted in Cu and Pb/Zn tailings to assess their growth,root morphology,nutrition uptake,metal accumulation,and translocation in plants.Amorpha fruticosa maintained normal growth,while the other species demonstrated stress related growth and root development.Sesbania cannabina showed the highest biomass among the plants,although it decreased by 30% in Cu tailings and 40% in Pb/Zn tailings.Calculated tolerance index (TI) values suggested that A.fruticosa,an N-fixing shrub,was the most tolerant species to both tailings (TI values 0.92-1.01),while S.cannabina had a moderate TI of 0.65-0.81 and B.papyrifera was the most sensitive species,especially to Pb/Zn tailings (TI values 0.15-0.19).Despite the high concentrations of heavy metals in the mine tailings and plants roots,only a small transfer of these elements to the aboveground parts of the woody plants was evident from the low translocation factor (TF) values.Among the woody plants,V.trifolia var.simplicifolia had the highest TF values for Zn (1.32),Cu (0.78),and Pb/Zn (0.78).The results suggested that A.fruticosa and S.cannabina,which have the highest tolerance and biomass production,respectively,demonstrated the potential for tailings revegetation in southern China. | Xiang Shi Xiaolei Zhang Guangcai Chen Yitai Chen Ling Wang Xiaoquan Shan | 2011 | Journal of Environmental Sciences2011，23，2： | 18 |
| 2 | Temperature pattern dynamics in shocked porous materials显示文摘The physical fields in porous materials under strong shock wave reaction are very complicated. We simulate such systems using the grain contact material point method. The complex temperature fields in the material are treated with the morphological characterization. To compare the structures and evolution of characteristic regimes under various temperature thresholds, we introduce two concepts, structure similarity and process similarity. It is found that the temperature pattern dynamics may show high similarity under various conditions. Within the same material, the structures and evolution of high-temperature regimes may show high similarity if the shock strength and temperature threshold are chosen appropriately. For process similarity in materials with high porosity, the required temperature threshold increases parabolically with the impact velocity. When the porosity becomes lower, the increasing rate becomes higher. For process similarity in different materials, the required temperature threshold and the porosity follow a power-law relationship in some range. | XU AiGuo*, ZHANG GuangCai, LI Hua, YING YangJun, YU XiJun & ZHU JianShi National Key Laboratory of Computational Physics, Institute of Applied Physics and Computational Mathematics, Beijing 100088, China | 2010 | Science China(Physics,Mechanics & Astronomy)2010，53，8： | 7 |
| 3 | Endothelial activation and dysfunction in COVID-19:from basic mechanisms to potential therapeutic approaches显示文摘On 12 March 2020,the outbreak of coronavirus disease 2019(COVID-19)was declared a pandemic by the World Health Organization.As of 4 August 2020,more than 18 million confirmed infections had been reported globally.Most patients have mild symptoms,but some patients develop respiratory failure which is the leading cause of death among COVID-19 patients.Endothelial cells with high levels of angiotensin-converting enzyme 2 expression are major participants and regulators of inflammatory reactions and coagulation.Accumulating evidence suggests that endothelial activation and dysfunction participate in COVID-19 pathogenesis by altering the integrity of vessel barrier,promoting pro-coagulative state,inducing endothelial inflammation,and even mediating leukocyte infiltration.This review describes the proposed cellular and molecular mechanisms of endothelial activation and dysfunction during COVID-19 emphasizing the principal mediators and therapeutic implications. | Yuefei Jin Wangquan Ji Haiyan Yang Shuaiyin Chen Weiguo Zhang Guangcai Duan | 2020 | Signal Transduction and Targeted Therapy2020，5，1： | 6 |
| 4 | Effects of metal cations on sorption-desorption of p-nitrophenol onto wheat ash显示文摘The mutual effects of metal cations(Cu2+,Pb2+,Zn2+,and Cd2+) and p-nitrophenol(NP) on their adsorption desorption behavior onto wheat ash were studied.Results suggested that Cu2+,Pb2+,and Zn2+ diminished the adsorption and increased the desorption of NP remarkably,while Cd2+ had no such effect.In contrast,NP diminished the adsorption of Cu2+,Pb2+,and Zn2+ onto ash,however,this suppression effect depended on the initial concentrations of metal cations.NP had no effect on Cd2+ adsorption on ash.Fourier transform infrared(FT-IR) and X-ray absorption spectroscopic(XAS) studies suggested the following mechanisms responsible for the metal suppression effect on NP adsorption:(1) large hydrated Cu2+,Pb2+,and Zn2+ shells occupied the surface of ash and prevent nonspecific adsorption of NP onto ash surface;(2) Cu2+,Pb2+,and Zn2+ may block the micropores of ash,resulting in decreased adsorption of NP;(3) complexation of Cu2+,Pb2+,and Zn2+ was likely via carboxyl,hydroxylic and phenolic groups of wheat ash and these same groups may also react with NP during adsorption.As a 'soft acid',Cd2+ is less effcient in the complexation of oxygencontaining acid groups than Cu2+,Pb2+,and Zn2+.Thus,Cd2+ had no effect on the adsorption of NP on wheat ash. | YushengWang Zhiguo Pei Xiaoquan Shan Guangcai Chen Jing Zhang Yaning Xie Lirong Zheng | 2011 | Journal of Environmental Sciences2011，23，1： | 5 |
| 5 | Complex fields in heterogeneous materials under shock:modeling, simulation and analysis显示文摘In this mini-review we summarize the progress of modeling, simulation and analysis of shock responses of heterogeneous materials in our group in recent years. The basic methodology is as below. We first decompose the problem into different scales. Construct/Choose a model according to the scale and main mechanisms working at that scale. Perform numerical simulations using the relatively mature schemes. The physical information is transferred between neighboring scales in such a way: The statistical information of results in smaller scale contributes to establishing the constitutive equation in larger one. Except for the microscopic Molecular Dynamics(MD) model, both the mesoscopic and macroscopic models can be further classified into two categories,solidic and fluidic models, respectively. The basic ideas and key techniques of the MD, material point method and discrete Boltzmann method are briefly reviewed. Among various schemes used in analyzing the complex fields and structures, the morphological analysis and the home-built software, GISO, are briefly introduced. New observations are summarized for scales from the larger to the smaller. | AiGuo Xu GuangCai Zhang YangJun Ying Cheng Wang | 2016 | Science China(Physics,Mechanics & Astronomy)2016，59，5： | 4 |
| 6 | Deformation Behavior of the Zr_(53.5)Cu_(26.5)Ni_5Al_(12)Ag_3 Bulk Metallic Glass Over a Wide Range of Strain Rate and Temperatures显示文摘The stress–strain relations for the Zr53.5Cu26.5Ni5Al12Ag3 bulk metallic glass(BMG) over a broad range of temperatures(room temperature to its supercooled liquid region) and strain rates(10-4to 10-1s-1) were established in uniaxial compression using a thermal-mechanical simulation system. The superplastic flow was seen above its glass transition temperature(Tg = 694 K) and strain rates of up to 10-1s-1from the variation of stress–strain curves. A deformation map of strain rate vs temperature of Zr53.5Cu26.5Ni5Al12Ag3 was obtained, which was mainly composed of homogeneous and inhomogeneous deformation regions,the former featuring either Newtonian or non-Newtonian flow while the latter characterizing linear elastic behavior followed by shear localization, respectively. A phenomenological constitutive equation used to describe a master curve of viscosity with respect to the strain rate was obtained by fitting the experimental results, which determines the viscosity of the present alloy at the temperature near and above Tg. The results show the Zr53.5Cu26.5Ni5Al12Ag3 BMG is the subject suitable for net shape forming process at the supercooled liquid region. | Guangcai Ma Zhengwang Zhu Zheng Wang Haifeng Zhang | 2015 | Journal of Materials Science & Technology2015，31，9： | 4 |
| 7 | Hydrochemical Dynamic Characteristics and Evolution of Underground Brine in the Mahai Salt Lake of the Qaidam Basin Qinghai-Tibet Plateau显示文摘The mineral rock salts present in the Mahai Salt Lake of the Qaidam basin exhibit high solubilities in water. In addition, the multicomponent underground brine exhibits a high salinity and is easily precipitated. In the natural state, brine transport in the brine layer is extremely slow, and the brine is in a relatively stable chemical equilibrium state with the rock salt media. However, during mining, both the seepage and the chemical fields fluctuate significantly, thereby disrupting the equilibrium and leading to variations in the chemical composition and dynamic characteristics of the brine. Therefore, we selected underground brine from the Mahai Salt Lake, collecting a total of 183 brine samples over three stages of mining(i.e., the early stage of underground brine extraction, the initial stage of mining, and the later stage of mining). Using a range of analytical techniques, the chemical dynamics of the underground brine water and its evolution were systematically studied. We found that evaporation and enrichment were the main mechanisms of underground brine evolution in the Mahai Salt Lake, with cation exchange and mineral dissolution/precipitation being key factors in determining the dynamic characteristics and evolution of the brine. | HU Shuya ZHAO Quansheng WANG Guangcai ZHANG Jianwei FENG Juan | 2018 | Acta Geologica Sinica(English Edition)2018，92，5： | 4 |
| 8 | Antibiotics in two municipal sewage treatment plants in Sri Lanka:Occurrence,consumption and removal efficiency显示文摘Most of the monitoring data on the occurrence of antibiotics in sewage treatment plants(STPs)have been reported from Europe,North America and some countries in Northeast Asia,while very limited data can be found in Southeast Asian countries.As a pioneering research in Sri Lanka,we collected 24 h composite wastewater samples at the influent and effluent of two municipal STPs for consecutive 7 days to investigate occurrence,consumption and removal efficiency of seventeen antibiotics.The STP was located in Colombo and Hikkaduwa,respectively,representing two kinds of communities(i.e.local and tourists)in Sri Lanka.The targeted antibiotics were extracted by solid-phase extraction method and detected on an Agilent HPLCMSMS(1290/6470QQQ).Results illustrated that the majority of the antibiotics can be always detected from both STPs,except for chlorotetracycine(CTC),doxycycline(DOX)and florfenicol(FF).Fluoroquinolones(FQs)were detected at highest concentrations with ciprofloxacin(CIP)being the dominant compound.Concentrations of CIP in the influent samples were in the range of 433 e6010 ng/L.The consumption of antibiotics was estimated on the basis of influent mass load and catchment population data.We found difference in consumption patterns between the two served areas.Compared to local people in Colombo,tourists in Hikkaduwa appeared to take more antibiotics during the study period with the estimated daily dose of 0.25 g per 1000 persons.Moreover,macrolides accounted for a larger portion than FQs in Hikkaduwa,with azithromycin(AZM)being the most prevalent antibacterial agent.After comparison with an official report by Medical Supplies Division of Sri Lanka,we conjected that AZM was not commonly used among local people and it was mainly introduced by foreign arrivals.As for the removal efficiency,the activated sludge system of Colombo exhibited better elimination and more stable performance than the constructed wetland process of Hikkaduwa. | Dilanka N.D.Samaraweera Xin Liu Guangcai Zhong Tilak Priyadarshana Riffat Naseem Malik Gan Zhang Mahdi Safaei Khorram Zewen Zhu Xianzhi Peng | 2019 | Emerging Contaminants2019，5，1： | 3 |
| 9 | Observable-specific phase biases of Wuhan multi-GNSS experiment analysis center’s rapid satellite products显示文摘Precise Point Positioning(PPP)with Ambiguity Resolution(AR)is an important high-precision positioning technique that is gaining popularity in geodetic and geophysical applications.The implementation of PPP-AR requires precise products such as orbits,clocks,code,and phase biases.As one of the analysis centers of the International Global Navigation Satellite System(GNSS)Service(IGS),the Wuhan University Multi-GNSS experiment(WUM)Analysis Center(AC)has provided multi-GNSS Observable-Specific Bias(OSB)products with the associated orbit and clock products.In this article,we first introduce the models and generation strategies of WUM rapid phase clock/bias products and orbit-related products(with a latency of less than 16 h).Then,we assess the performance of these products by comparing them with those of other ACs and by testing the PPP-AR positioning precision,using data from Day of the Year(DOY)047 to DOY 078 in 2022.It is found that the peak-to-peak value of phase OSBs is within 2 ns,and their fluctuations are caused by the clock day boundary discontinuities.The associated Global Positioning System(GPS)orbits have the best consistency with European Space Agency(ESA)products,and those of other systems rank in the medium place.GLObal NAvigation Satellite System(GLONASS)clocks show slightly inconsistency with other ACs’due to the antenna thrust power adopted,while the phase clocks of other GNSSs show no distortion compared with legacy clocks.With well-estimated phase products for Precise Orbit Determination(POD),the intrinsic precision is improved by 14%,17%,and 24%for GPS,Galileo navigation satellite system(Galileo),and BeiDou-3 Navigation Satellite System(BDS-3),respectively.The root mean square of PPP-AR using our products in static mode with respect to IGS weekly solutions can reach 0.16 cm,0.16 cm,and 0.44 cm in the east,north,and up directions,respectively.The multi-GNSS wide-lane ambiguity fixing rates are all above 90%,while the narrow-lane fixing rates above 80%.In conclusion,the phase OSB products at WUM have good precision and performance,which will benefit multi-GNSS PPP-AR and POD. | Jianghui Geng Qiyuan Zhang Guangcai Li Jingnan Liu Donglie Liu | 2022 | Satellite Navigation2022，3，3： | 3 |
| 10 | MicroRNA-628-5p Facilitates Enterovirus 71 Infection by Suppressing TRAF3 Signaling显示文摘To date,EV71 infection still poses a great challenge to the health of infants and young children.1 Much established evidence suggests that EV71 infection depends on a wide variety of host factors,including cell surface receptors for EV71 entry,innate immune response,miRNAs,and lncRNAs.2,3 It is thought that diverse signaling pathways are required for EV71 to escape the host immune response.4 Innate immunity serves as the first line of defense against pathogens.Tumor necrosis factor receptor-associated factor(TRAF)proteins are essential components of signaling pathways activated by Toll-like receptor(TLR)or RIG-I-like receptor(RLR)family members.TRAF3 is widely expressed by many cell types,including all nucleated immune cells,in which it plays many roles in the regulation of immune functions.5 TRAF3 plays a significant role in regulating the functions of B and T lymphocytes.TRAF3 is a highly versatile regulator that positively controls type I interferon and cytokine production through interferon regulatory factors(IRFs)and nuclear factor-κB(NF-κB).6 A recent study indicated that EV71-induced ubiquitin-specific protease 19(USP19)negatively regulates type I IFN signaling by targeting TRAF3. | Dong Li Shuaiyin Chen Weiguo Zhang Chao Zhang Tiantian Sun Yue Du Ronghua Ding Yanlei Gao Yuefei Jin Guangcai Duan | 2021 | Cellular & Molecular Immunology2021，18，5： | 2 |
| 11 | Porosity Distribution Characteristics and Geological Analysis of Brine Storage Medium in the Qaidam Basin, Western China显示文摘Underground brine is an unusual water resource that contains abundant mineral resources. It is distributed widely in the Qaidam Basin, western China, a hyperarid inland basin located in the northern Tibetan Plateau. Pores in the brine storage medium act as storage space and transmission channels of underground brine. Therefore, the porosity of brine storage medium determines its ability to store brine. In this study, Mahai Salt Lake was used as the research area as a modern saline lake located in the north area of the Qaidam Basin. A total of 100 porosity samples were collected from eight sampling points in two profiles of the research area at sampling depths of 1.30–314.78 m. The porosity distribution characteristics and influencing factors in brine storage medium were analysed according to the measured porosity data. Based on analysis of the pore structure characteristics, the brine storage medium contains intercrystalline pores, unlike conventional freshwater storage mediums. Moreover, the primary salt rock is susceptible to dissolution by lighter brine, facilitating the formation of secondary porosity. Due to the formation of secondary pores, a porosity greater than 20% remains even at buried depths greater than 100 m. Based on the geological statistical analysis, due to the geographic location, salt formation time, and depositional environment, the porosity values of Mahai Salt Lake do not exhibit a wider distribution, but also show more extreme values than a nearby salt lake. Based on the porosity characteristics by depth, due to the presence of secondary pores, flooding, stratigraphic static pressure, and other factors, porosity shows fluctuations with increasing depth. | HU Shuya XIAO Changlai LIANG Xiujuan ZHAO Quansheng WANG Guangcai ZHANG Jianwei FENG Juan | 2018 | Chinese Geographical Science2018，28，4： | 2 |
| 12 | Comparison of gut microbiota in autism spectrum disorders and neurotypical boys in China:A case-control study显示文摘Background:Autism spectrum disorders(ASDs)are a set of complex neurobiological disorders.Growing evidence has shown that the microbiota that resides in the gut can modulate brain development via the gut–brain axis.However,direct clinical evidence of the role of the microbiota–gut–brain axis in ASD is relatively limited.Methods:A case-control study of 71 boys with ASD and 18 neurotypical controls was conducted at China-Japan Friendship Hospital.Demographic information and fecal samples were collected,and the gut microbiome was evaluated and compared by 16S ribosomal RNA gene sequencing and metagenomic sequencing.Results:A higher abundance of operational taxonomic units(OTUs)based on fecal bacterial profiling was observed in the ASD group.Significantly different microbiome profiles were observed between the two groups.At the genus level,we observed a decrease in the relative abundance of Escherichia,Shigella,Veillonella,Akkermansia,Provindencia,Dialister,Bifidobacterium,Streptococcus,Ruminococcaceae UCG_002,Megasphaera,Eubacterium_coprostanol,Citrobacter,Ruminiclostridium_5,and Ruminiclostridium_6 in the ASD cohort,while Eisenbergiella,Klebsiella,Faecalibacterium,and Blautia were significantly increased.Ten bacterial strains were selected for clinical discrimination between those with ASD and the neurotypical controls.The highest AUC value of the model was 0.947.Conclusion:Significant differences were observed in the composition of the gut microbiome between boys with ASD and neurotypical controls.These findings contribute to the knowledge of the alteration of the gut microbiome in ASD patients,which opens the possibility for early identification of this disease. | Fang Ye Xinying Gao Zhiyi Wang Shuman Cao Guangcai Liang Danni He Zhitang Lv Liming Wang Pengfei Xu Qi Zhang | 2021 | Synthetic and Systems Biotechnology2021，6，2： | 2 |
| 13 | Synthesis of Fe 3 O 4 @ZIF-8 magnetic core–shell microspheres and their potential application in a capillary microreactor显示文摘 | Tong Zhang Xiongfu Zhang Xinjuan Yan Linying Kong Guangcai Zhang Haiou Liu Jieshan Qiu King Lun Yeung | 2013 | Chemical Engineering Journal2013，，： | 1 |
| 14 | A new adaptive weighted median filter algorithm显示文摘 | ZHANG Shufang ZHANG Tao QU Guangcai | 2011 | Elsevier Energy Procedia2011，13，5： | 1 |
| 15 | The incubation period of COVID-19: a global meta-analysis of 53 studies and a Chinese observation study of 11 545 patients显示文摘Background:The incubation period is a crucial index of epidemiology in understanding the spread of the emerging Coronavirus disease 2019(COVID-19).In this study,we aimed to describe the incubation period of COVID-19 globally and in the mainland of China.Methods:The searched studies were published from December 1,2019 to May 26,2021 in CNKI,Wanfang,PubMed,and Embase databases.A random-efect model was used to pool the mean incubation period.Meta-regression was used to explore the sources of heterogeneity.Meanwhile,we collected 11545 patients in the mainland of China outside Hubei from January 19,2020 to September 21,2020.The incubation period ftted with the Log-normal model by the coarseDataTools package.Results:A total of 3235 articles were searched,53 of which were included in the meta-analysis.The pooled mean incubation period of COVID-19 was 6.0 days(95%confdence interval[CI]5.6–6.5)globally,6.5 days(95%CI 6.1–6.9)in the mainland of China,and 4.6 days(95%CI 4.1–5.1)outside the mainland of China(P=0.006).The incubation period varied with age(P=0.005).Meanwhile,in 11545 patients,the mean incubation period was 7.1 days(95%CI 7.0–7.2),which was similar to the fnding in our meta-analysis.Conclusions:For COVID-19,the mean incubation period was 6.0 days globally but near 7.0 days in the mainland of China,which will help identify the time of infection and make disease control decisions.Furthermore,attention should also be paid to the region-or age-specifc incubation period. | Cheng Cheng DongDong Zhang Dejian Dang Juan Geng Peiyu Zhu Mingzhu Yuan Ruonan Liang Haiyan Yang Yuefei Jin Jing Xie Shuaiyin Chen Guangcai Duan | 2021 | Infectious Diseases of Poverty2021，10，5： | 1 |
| 16 | Geochemical controls on arsenic and rare earth elements approximately along a groundwater flow path in the shallow aquifer of the Hetao Basin, Inner Mongolia显示文摘 | Huaming Guo Bo Zhang Guangcai Wang Zhaoli Shen | 2009 | Chemical Geology2009，，1： | 1 |
| 17 | UV light absorbers executing synergistic effects of passivating defects and improving photostability for efficient perovskite photovoltaics显示文摘Metal halide perovskite-based solar cells(PSCs) have rapidly-increased power conversion efficiency(PCE)exceeding 25% but poor stability especially under ultraviolet(UV) light. Meanwhile, non-radiative recombination caused by diverse defects in perovskite absorbers and related interfaces is one of the major factors confining further development of PSCs. In this study, we systematically investigate the role of 2-(2-hydroxy-5-methylphenyl)benzotriazole(UVP) additive in perovskite layers. By adjusting the amount of doped UVP, the quality of perovskite absorbers is significantly improved with enlarged grains, longer lifetime and diffusion length of charge carriers. Furthermore, UVP not only reduces defects for less nonradiative recombination, but also matches energy level alignment for efficient interfacial charge extraction. X-ray photoelectron spectroscopy confirms that N-donor of UVP molecule coordinates with undercoordinated Pb^(2+) on the surface. Interestingly, UVP incorporated in PbI_(2) protects the perovskite by absorbing UV through the opening and closing of the chelating ring. Eventually, the UVP treated PSCs obtain a champion PCE of 22.46% with remarkably enhanced UV stability, retaining over 90% of initial PCE after 60 m W/cm^(2) strong UV irradiation for 9 h while the control maintaining only 74%. These results demonstrate a promising strategy fabricating passivated and UV-resistant perovskite materials simultaneously for efficient and stable perovskite photovoltaics. | Jiale Li Wenjing Qi Yameng Li Sumin Jiao Hao Ling Peng Wang Xin Zhou Khumal Sohail Guangcai Wang Guofu Hou Jingshan Luo Ying Zhao Liming Ding Yuelong Li Xiaodan Zhang | 2022 | Journal of Energy Chemistry2022，31，4： | 1 |
| 18 | Geo- chemical controls on arsenic and rare earth elements approxi- mately along a groundwater flow path in the shallow aquifer of the Hetao Basin, Inner Mongotia显示文摘 | GUO Huaming ZHANG Bo WANG Guangcai | 2010 | Chemical Geology2010，270，234： | 1 |
| 19 | Integrating factors and conservation theorem for holonomic nonconservative dynamcal systems in generalized classical mechanics显示文摘 | Qiao Yongfen Zhang Yaoliang Han Guangcai | 2002 | Chineae Physics2002，11，10： | 1 |
| 20 | Rapid analysis of apple leaf nitrogen using near infrared spectroscopy and multiple linear regression显示文摘 | Zhang Guangcai Li Zhuang Yan Xiangmei | 2012 | Communications in soil science and plant analysis2012，43，13： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员