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| 1 | Seismic performance of recycled concrete-filled square steel tube columns显示文摘An experimental study on the seismic performance of recycled concrete-filled square steel tube(RCFST) columns is carried out.Six specimens were designed and tested under constant axial compression and cyclic lateral loading.Two parameters, replacement percentage of recycled coarse aggregate(RCA) and axial compression level, were considered in the test.Based on the experimental data, the hysteretic loops, skeleton curves, ductility, energy dissipation capacity and stiffness degradation of RCFST columns were analyzed.The test results indicate that the failure modes of RCFST columns are the local buckling of the steel tube at the bottom of the columns, and the hysteretic loops are full and their shapes are similar to normal CFST columns.Furthermore, the ductility coefficient of all specimens are close to 3.0, and the equivalent viscous damping coefficient corresponding to the ultimate lateral load ranges from 0.323 to 0.360, which demonstrates that RCFST columns exhibit remarkable seismic performance. | Chen Zongping Jing Chenggui Xu Jinjun Zhang Xianggang | 2017 | Earthquake Engineering and Engineering Vibration2017,16,1: | 8 |
| 2 | Effects of arbuscular mycorrhizal fungi on the drought resistance of the mining area repair plant Sainfoin显示文摘To solve the problem of lack of water in arid areas and barren soil in the process of ecological restoration,the growth and drought resistance of Sainfoin(Onobrychis viciifolia Scop.) was studied by inoculation of AMF(arbuscular mycorrhizal fungi), under drought stress. The results show that the inoculation of AMF can significantly improve the growth and mycorrhizal infection rate of Sainfoin and accelerate the absorption of water and nutrients by the roots compared with uninoculated plants. On the 40 th day under drought stress, the relative water content, total nitrogen and total phosphorus content of the leaves of inoculated plants increased by 7.27%, 4.21% and 2.40%, respectively, the osmotic adjustment property in plant cells was improved, the protective enzyme system was improved and membrane lipid peroxidation was reduced. The inoculation of AMF can slow down the damage from drought, improve the drought resistance of Sainfoin, and will be of great significance to the ecologic restoration in arid areas. | Kong Jing Pei Zongping Du Min Sun Gan Zhang Xin | 2014 | International Journal of Mining Science and Technology2014,24,4: | 6 |
| 3 | Neuroprotective effects of combined lead and cadmium,as well as N-acetylcysteine,on cerebral cortical neurons following lipid peroxidation injury显示文摘BACKGROUND:Studies have reported the antioxidant effects of lead and cadmium in the central nervous system,but very few have addressed the combined toxicity of lead and cadmium.The mechanisms by which these combined heavy metals are toxic,as well as how to protect cells from these agents,remains poorly understood. OBJECTIVE:Primary cultured rat cortical neurons were used to determine the effects of combined lead and cadmium on levels of glutathione peroxidase(GSH-Px),superoxide dismutase(SOD), catalase(CAT),and acetylcholinesterase(AChE),as well as malondialdehyde(MDA),and to evaluate the neuroprotective effects of N-acetylcysteine(NAC). DESIGN,TIME AND SETTING:An in vitro toxicological observation was performed at the Comparative Medicine Center of Yangzhou University from August 2007 to April 2008. MATERIALS:Lead acetate,cadmium acetate,and NAC were purchased from Sigma-Aldrich(St. Louis,USA).Commercial kits of GSH-Px,SOD,CAT,AChE,and MDA were purchased from Nanjing Jiancheng Bioengineering Institute,Nanjing,China. METHODS:The cerebral cortical neurons were isolated from newborn Sprague dawley rats at 24 hours after birth and primary cultured for 6 days.Thereafter,the cells were treated with a range of cadmium doses(0,5.0,and 10.0μmol/L),lead doses(0,1.0,and 2.0μmol/L),or a combination of the two for 12 hours at 37℃in a 5%CO_2 incubator,respectively.In addition,the cells were incubated with different doses of cadmium and/or lead and(0 and 50μmol/L) NAC for 12 hours to assess the protective effects on cell survival. MAIN OUTCOME MEASURES:The activity of SOD,GSH-Px,CAT,and AChE,as well as MDA content,in the cell lysates was detected using commercial kits. RESULTS:At 12 hours after treatment,compared to the control group,activity of GSH-Px,SOD, and AChE in the lead,cadmium,or combined treated cells was significantly decreased with increasing doses of cadmium/or lead(P<0.05),but CAT activity and MDA levels were significantly increased(P<0.05).The combination of cadmium and lead led to higher levels of toxicity than individual exposure. CONCLUSION:The degree of oxidative damage increased when the two heavy metals were combined.NAC protected neonatal cortical neurons by increasing activity of anti-oxidative enzymes, and reducing lipid peroxidation,but the reduction was not statistically significant. | Yumei Zhang Hao Lu Yan Yuan Xuezhong Liu Zongping Liu | 2009 | Neural Regeneration Research2009,4,11: | 4 |
| 4 | Prognostic value of systemic immune- inflammation index in acute/subacute patients with cerebral venous sinus thrombosis显示文摘Objective To evaluate the prognosis values of systemic immune-inflammation index(SII)in non-chronic cerebral venous sinus thrombosis(CVST).Methods patients with CVST,admitted to the First Affiliated Hospital of Zhengzhou University,were retrospectively identified from January 2013 to December 2018.We selected patients in acute/subacute phase from database.Functional outcomes of patients were evaluated with the modified Rankin Scale(mRS)-mRS 3-6 as poor outcomes and mRS 6 as death.The overall survival time was defined as the date of onset to the date of death or last follow-up date.Survival analysis was described by the Kaplan-Meier curve and Cox regression analysis.Multivariate logistic regression analysis assessed the relationship between SII and poor functional outcome.The area under the Receiver Operating Curve curve(AUC)was estimated to evaluate the ability of SII in prediction.Results A total of 270 patients were included and their duration of follow-up was 22 months(6-66 months),of whom 31 patients had poor outcomes and 24 patients dead.Cox regression analysis showed that SII(HR=1.304,95%CI:1.101 to 1.703,p=0.001)was a predictor of death in non-chronic CVST.Patients with higher SII presented lower survival rates(p=0.003).The AUC of SII was 0.792(95%CI:0.695 to 0.888,p=0.040)with a sensitivity of 69.6%and specificity of 80.1%.Subgroups analysis demonstrated that SII was an important predictor of poor outcomes in male(OR=1.303,95%CI:1.102 to 1.501,p=0.011)and pregnancy/puerperium female(OR=1.407,95%CI:1.204 to 1.703,p=0.034).Conclusions SII was a potential predictor in the poor prognosis of patients with acute/subacute CVST,especially in male and pregnancy/puerperium female. | Shen Li Kai Liu Yuan Gao Lu Zhao Rui Zhang Hui Fang Yongli Tao Hongbing Liu Jiawei Zhao Zongping Xia Yuming Xu Bo Song | 2020 | Stroke & Vascular Neurology2020,5,4: | 3 |
| 5 | Freeze–thaw effects on erosion process in loess slope under simulated rainfall显示文摘Seasonal freeze–thaw processes have led to severe soil erosion in the middle and high latitudes.The area affected by freeze–thaw erosion in China exceeds 13%of the national territory.So understanding the effect of freeze–thaw on erosion process is of great significance for soil and water conservation as well as for ecological engineering.In this study,we designed simulated rainfall experiments to investigate soil erosion processes under two soil conditions,unfrozen slope(UFS)and frozen slope(FS),and three rainfall intensities of 0.6,0.9 and 1.2 mm/min.The results showed that the initial runoff time of FS occurred much earlier than that of the UFS.Under the same rainfall intensity,the runoff of FS is 1.17–1.26 times that of UFS;and the sediment yield of FS is 6.48–10.49 times that of UFS.With increasing rainfall time,rills were produced on the slope.After the appearance of the rills,the sediment yield on the FS accounts for 74%–86%of the total sediment yield.Rill erosion was the main reason for the increase in soil erosion rate on FS,and the reduction in water percolation resulting from frozen layers was one of the important factors leading to the advancement of rills on slope.A linear relationship existed between the cumulative runoff and the sediment yield of UFS and FS(R2>0.97,P<0.01).The average mean weight diameter(MWD)on the slope erosion particles was as follows:UFS0.9(73.84μm)>FS0.6(72.30μm)>UFS1.2(72.23μm)>substrate(71.23μm)>FS1.2(71.06μm)>FS0.9(70.72μm).During the early stage of the rainfall,the MWD of the FS was relatively large.However,during the middle to late rainfall,the particle composition gradually approached that of the soil substrate.Under different rainfall intensities,the mean soil erodibility(MK)of the FS was 7.22 times that of the UFS.The ratio of the mean regression coefficient C2(MC2)between FS and UFS was roughly correspondent with MK.Therefore,the parameter C2 can be used to evaluate soil erodibility after the appearance of the rills.This article explored the influence mechanism of freeze–thaw effects on loess soil erosion and provided a theoretical basis for further studies on soil erosion in the loess hilly regions. | SU Yuanyi LI Peng REN Zongping XIAO Lie ZHANG Hui | 2020 | Journal of Arid Land2020,12,6: | 2 |
| 6 | Chlorine-anion doping induced multi-factor optimization in perovskites for boosting intrinsic oxygen evolution显示文摘The oxygen evolution reaction(OER) plays a crucial role in many electrochemical energy technologies,and creating multiple beneficial factors for OER catalysis is desirable for achieving high catalytic efficiency.Here,we highlight a new halogen-chlorine(Cl)-anion doping strategy to boost the OER activity of perovskite oxides.As a proof-of-concept,proper Cl doping at the oxygen site of LaFeO3(LFO) perovskite can induce multiple favorable characteristics for catalyzing the OER,including rich oxygen vacancies,increased electrical conductivity and enhanced Fe-O covalency.Benefiting from these factors,the LaFeO2.9-δCl0.1(LFOCl) perovskite displays significant intrinsic activity enhancement by a factor of around three relative to its parent LFO.This work uncovers the effect of Cl-anion doping in perovskites on promoting OER performance and paves a new way to design highly efficient electrocatalysts. | Yinlong Zhu Qian Lin Zhenbin Wang Dongchen Qi Yichun Yin Yu Liu Xiwang Zhang Zongping Shao Huanting Wang | 2021 | Journal of Energy Chemistry2021,30,1: | 2 |
| 7 | Large extracellular vesicles secreted by human iPSC-derived MSCs ameliorate tendinopathy via regulating macrophage heterogeneity显示文摘Tendinopathy is a common musculoskeletal disorder which results in chronic pain and reduced performance.The therapeutic effect of stem cell derived-small extracellular vesicles(sEVs)for tendinopathy has been validated in recent years.However,whether large extracellular vesicles(lEVs),another subset of extracellular vesicles,possesses the ability for the improvement of tendinopathy remains unknown.Here,we showed that lEVs secreted from iPSC-derived MSCs(iMSC-lEVs)significantly mitigated pain derived from tendinopathy in rats.Immuno-histochemical analysis showed that iMSC-lEVs regulated the heterogeneity of infiltrated macrophages and several inflammatory cytokines in rat tendon tissue.Meanwhile,in vitro experiments revealed that the M1 pro-inflammatory macrophages were repolarized towards M2 anti-inflammatory macrophages by iMSC-lEVs,and this effect was mediated by regulating p38 MAPK pathway.Moreover,liquid chromatography-tandem mass spectrometry analysis identified 2208 proteins encapsulated in iMSC-lEVs,including 134 new-found proteins beyond current Vesiclepedia database.By bioinformatics and Western blot analyses,we showed that DUSP2 and DUSP3,the negative regulator of p38 phosphorylation,were enriched in iMSC-lEVs and could be transported to macrophages.Further,the immunomodulatory effect of iMSC-lEVs on macrophages was validated in explant tendon tissue from tendinopathy patients.Taken together,our results demonstrate that iMSC-lEVs could reduce inflammation in tendinopathy by regulating macrophage heterogeneity,which is mediated via the p38 MAPK pathway by delivery of DUSP2 and DUSP3,and might be a promising candidate for tendinopathy therapy. | Teng Ye Zhengsheng Chen Jieyuan Zhang Lei Luo Renzhi Gao Liangzhi Gong Yuhang Du Zongping Xie Bizeng Zhao Qing Li Yang Wang | 2023 | Bioactive Materials2023,,3: | 2 |
| 8 | Dynamic Variations in Brain Glycogen are Involved in Modulating Isoflurane Anesthesia in Mice显示文摘General anesthesia severely affects the metabolites in the brain.Glycogen,principally stored in astrocytes and providing the short-term delivery of substrates to neurons,has been implicated as an affected molecule.However,whether glycogen plays a pivotal role in modulating anesthesia-arousal remains unclear.Here,we demonstrated that isoflurane-anesthetized mice exhibited dynamic changes in the glycogen levels in various brain regions.Glycogen synthase(GS)and glycogen phosphorylase(GP),key enzymes of glycogen metabolism,showed increased activity after isoflurane exposure.Upon blocking glycogenolysis with 1,4-dideoxy-1,4-imino-Darabinitol(DAB),a GP antagonist,we found a prolonged time of emergence from anesthesia and an enhancedδfrequency in the EEG(electroencephalogram).In addition,augmented expression of glycogenolysis genes in glycogen phosphorylase,brain(Pygb)knock-in(PygbH11/H11)mice resulted in delayed induction of anesthesia,a shortened emergence time,and a lower ratio of EEG-δ.Our findings revealed a role of brain glycogen in regulating anesthesiaarousal,providing a potential target for modulating anesthesia. | Ze Fan Zhihao Zhang Shiyi Zhao Yuanyuan Zhu Dong Guo Bo Yang Lixia Zhuo Jiao Han Rui Wang Zongping Fang Hailong Dong Yan Li Lize Xiong | 2020 | Neuroscience Bulletin2020,36,12: | 2 |
| 9 | Self-catalyzed formation of strongly interconnected multiphase molybdenum-based composites for efficient hydrogen evolution显示文摘Molybdenum carbide(MoxC)with variable phase structure possesses flexible hydrogen-binding energy(HBE),which is a promising hydrogen evolution reaction(HER)catalyst.Herein,a hybrid multiphase MoxC freestanding film coupled with Co3Mo(CM/MoxC@NC)is synthesized through the electrospinning method supplemented by the heteroatom incorporation.CM/MoxC@NC surpasses its pure phase counterparts and exhibits remarkable catalytic activity at 114mV to deliver a current density of 10mA cm^(−2) in acid,which is among the first-rate level performance reported for MoxC-based catalysts.The subsequent ex situ and in situ characterizations reveal a phase transition mechanism based on self-catalysis that CoOx depletes the coordinated C ofα-MoC via the interaction,which realizes the assembly of weak HBEα-MoC and strong HBEβ-Mo2C,and the enhanced utilization of active materials as well.The multiple structures with optimal HBE are in favor of the stepwise reactions of HER,as the study of the correlation between HBE and phase structure revealed.This study discloses the underlying phase transition mechanism and highlights the HBE–structure relationship that should be considered for catalyst design. | Jiani Chen Haijuan Zhang Jie Yu Daqin Guan Sixuan She Wei Zhou Zongping Shao | 2022 | Carbon Energy2022,4,1: | 2 |
| 10 | Landfill Leachate Treatment by a Coagulation -photooxidation Process显示文摘 | Wang Zongping Zhang Zhe Lin Yuejuaj | 2002 | Journal of Hazardous Materials2002,95,: | 1 |
| 11 | Treatment of osteomyelitis and repair of bone defect by degradable bioactive borate glass releasing vancomycin显示文摘 | Zongping Xie Xin Liu Weitao Jia Changqing Zhang Wenhai Huang Jianqiang Wang | 2009 | Journal of Controlled Release2009,,2: | 1 |
| 12 | Has“Grain for Green”threaten food security on the Loess Plateau of China?显示文摘There is debating over the question of whether the large-scale‘Grain for Green’program on the Loess Plateau of China threatens regional food security.Self-sufficiency index and cropland pressure index were used to assess food security on the Loess Plateau after the implementation of revegetation program.The results showed that the‘Grain for Green’program initially had a considerable impact on regional food security,where grain yield fell from 1999 to 2001,resulting in a lower grain self-sufficiency and increased farmland stress.Subsequently,grain yield in this region increased due to the elevated agricultural material input and increased construction of terraces and check dams.The grain self-sufficiency index would have increased to 96.55%if there were improvements to the agricultural conditions,such as fertilization and irrigation,which would have resulted in an increase in the crop yield per unit of 20%.However,the grain self-sufficiency increased to 105.25%via the construction of terraces and check dams.Thus,the government should further expand the‘Grain for Green’program in coordination with improvements to the agricultural production conditions and the construction of terraces and check dams on the Loess Plateau. | Peng Shi Zhaohong Feng Haidong Gao Peng Li Xiaoming Zhang Tiantian Zhu Zhanbin Li Guoce Xu Zongping Ren Lie Xiao | 2020 | Ecosystem Health and Sustainability2020,6,1: | 1 |
| 13 | Comprehensive Evaluation and Forecast Analysis of Control System Quality in ATC Operation显示文摘 | Zongping Lv Linlu Wang Zhaoning Zhang | 2012 | Journal of Convergence Information Technology2012,,7: | 1 |
| 14 | Novel high-entropy oxides for energy storage and conversion:From fundamentals to practical applications显示文摘High-entropy oxides(HEOs)are gaining prominence in the field of electrochemistry due to their distinctive structural characteristics,which give rise to their advanced stable and modifiable functional properties.This review presents fundamental preparations,incidental characterizations,and typical structures of HEOs.The prospective applications of HEOs in various electrochemical aspects of electrocatalysis and energy conversion-storage are also summarized,including recent developments and the general trend of HEO structure design in the catalysis containing oxygen evolution reaction(OER)and oxygen reduction reaction(ORR),supercapacitors(SC),lithium-ion batteries(LIBs),solid oxide fuel cells(SOFCs),and so forth.Moreover,this review notes some apparent challenges and multiple opportunities for the use of HEOs in the wide field of energy to further guide the development of practical applications.The influence of entropy is significant,and high-entropy oxides are expected to drive the improvement of energy science and technology in the near future. | Zi-Yu Liu Yu Liu Yujie Xu Hualiang Zhang Zongping Shao Zhenbin Wang Haisheng Chen | 2023 | Green Energy & Environment2023,8,5: | 1 |
| 15 | Bioactive borate glass scaffolds: in vitro and in vivo evaluation for use as a drug delivery system in the treatment of bone infection显示文摘 | Xin Liu Zongping Xie Changqing Zhang Haobo Pan Mohamed N. Rahaman Xin Zhang Qiang Fu Wenhai Huang | 2010 | Journal of Materials Science: Materials in Medicine2010,,2: | 1 |
| 16 | Histological evaluation of bone biopsy results during PVP or PKP ofvertebral compression fractures显示文摘 | Lei Zhang Jigang Li Huilin Yang Zongping Luo Jun Zou | 2013 | Oncology Letters2013,,1: | 1 |
| 17 | Effects of niobium doping site and concentration on the phase structure and oxygen permeability of Nb -substituted SrCoOx oxides显示文摘 | Kun Zhang Ran Ran Zongping Shao | 2010 | Ceramics International2010,,36: | 1 |
| 18 | Landfill leachate treatment by a coagulation - photooxidation process 显示文摘 | Wang Zongping Zhang Zhe Lin Yuejuan | 2002 | Journal of Hazardous Materals2002,,95: | 1 |
| 19 | Experimental study on axial compressive behaviors of steel recycled concrete com- posite columns显示文摘 | CHEN Zongping ZHANG Xianggang ZHANG Shiqian | 2011 | Advanced Materials Research2011,,243249: | 1 |
| 20 | Tailoring structural properties of carbon via implanting optimal co nanoparticles in n-rich carbon cages toward high-efficiency oxygen electrocatalysis for rechargeable zn-air batteries显示文摘Rational construction of carbon-based materials with high-efficiency bifunctionality and low cost as the substitute of precious metal catalyst shows a highly practical value for rechargeable Zn-air batteries(ZABs)yet it still remains challenging.Herein,this study employs a simple mixing-calcination strategy to fabricate a high-performance bifunctional composite catalyst composed of N-doped graphitic carbon encapsulating Co nanoparticles(Co@NrC).Benefiting from the core-shell architectural and compositional advantages of favorable electronic configuration,more exposed active sites,sufficient electric conductivity,rich defects,and excellent charge transport,the optimal Co@NrC hybrid(Co@NrC-0.3)presents outstanding catalytic activity and stability toward oxygen-related electrochemical reactions(oxygen reduction and evolution reactions,i.e.,ORR and OER),with a low potential gap of 0.766 V.Besides,the rechargeable liquid ZAB assembled with this hybrid electrocatalyst delivers a high peak power density of 168 mW cm^(−2),a small initial discharge-charge potential gap of 0.45 V at 10 mA cm^(−2),and a good rate performance.Furthermore,a relatively large power density of 108 mW cm^(−2) is also obtained with the Co@NrC-0.3-based flexible solid-state ZAB,which can well power LED lights.Such work offers insights in developing excellent bifunctional electrocatalysts for both OER and ORR and highlights their potential applications in metal-air batteries and other energy-conversion/storage devices. | Jie Yu Yawen Dai Zhenbao Zhang Tong Liu Siyuan Zhao Chun Cheng Peng Tan Zongping Shao Meng Ni | 2022 | Carbon Energy2022,4,4: | 1 |