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26篇 您的检索式:作者名="Chenglu Li"
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1Preparation of activated carbon from cattail and its application for dyes removal显示文摘Activated carbon was prepared from cattail by H3PO4 activation. The effects influencing the surface area of the resulting activated carbon followed the sequence of activated temperature > activated time > impregnation ratio > impregnation time. The optimum condition was found at an impregnation ratio of 2.5, an impregnation time of 9 hr, an activated temperature of 500°C, and an activated time of 80 min. The Brunauer-Emmett-Teller surface area and average pore size of the activated carbon were 1279 m2/g and 5.585 nm, respectively. A heterogeneous structure in terms of both size and shape was highly developed and widely distributed on the carbon surface. Some groups containing oxygen and phosphorus were formed, and the carboxyl group was the major oxygen-containing functional group. An isotherm equilibrium study was carried out to investigate the adsorption capacity of the activated carbon. The data fit the Langmuir isotherm equation, with maximum monolayer adsorption capacities of 192.30 mg/g for Neutral Red and 196.08 mg/g for Malachite Green. Dye-exhausted carbon could be regenerated effectively by thermal treatment. The results indicated that cattail-derived activated carbon was a promising adsorbent for the removal of cationic dyes from aqueous solutions.Qianqian Shi Jian Zhang Chenglu Zhang Cong Li Bo Zhang Weiwei Hu Jingtao Xu Ran Zhao 2010Journal of Environmental Sciences2010,22,1:13
2Early evaluation of growth traits of Larix kaempferi clones显示文摘Early selection is an important method to shorten the breeding cycle for tree species, which may differ in the time for early selection.To evaluate the early selected time for Larix kaempferi, tree height and diameter at breast height of 57 L.kaempferi clones were measured over many different growth years.The results indicated that, except for age × clone interaction for diameter at breast height(P = 0.741), there were significant differences among all variation sources(P < 0.01).The coefficient of phenotypic variation ranged from 14.89 to 35.65%for height and from 19.17 to 23.86% for diameter at breast height in different growth years.The repeatability of height and of diameter at breast height among clones was high,ranging from 0.6181 to 0.8531(height) and from 0.8443 to0.8497(diameter at breast height), in different growth years.There were significant positive correlations between all pairs of growth traits except between height in the 2 nd growth year and height in the 30 th growth year; and between height in the 2 nd growth year × diameter at breast height in the 30 th growth year.With a comprehensive evaluation method and a selection ratio of 10%, L65,L1, L62, L9, L15, and L78 were selected as excellent clones in the 30 th growth year.Their average values of height and diameter at breast height were 9.81 and 16.57%higher than the overall average, representing genetic gains of 6.46 and 13.99%, respectively.This study provides a theoretical foundation for the genetic improvement of L.kaempferi.Yanyan Pan Shuchun Li Chenglu Wang Wenjun Ma Guiyou Xu Lili Shao Kailong Li Xiyang Zhao Tingbo Jiang 2018Journal of Forestry Research2018,29,4:10
3Reducing the yield asymmetry in Mg-5Li-3Al-2Zn alloy by hot-extrusion and multi-pass rolling显示文摘Reducing the yield asymmetry is very important concern for wrought Mg-Li alloys.In this study,Mg-5Li-3Al-2 Zn(LAZ532)alloy was successfully produced by hot-extrusion followed by multi-pass rolling at 573 K.Microstructure evolution,mechanical properties and yield asymmetry reducing of LAZ532 alloys at different rolling passes were studied.By observing microstructure using transmission electron microscopy showed that a small amount of ultra-fine Al Mg_(4)Zn_(11)and nano Li_(3)Al_(2) phases existed in the alloy.With the increasing of rolling passes,the grains of the alloys were obviously refined,and comprehensive mechanical properties were dramatically improved.Meanwhile,it also showed an excellent tension and compression yield symmetry(TYS/CYS was about 1).The results showed that the combined action of the weak{0001}basal lamellar texture,grain refinement and addition of Li element could effectively improve the yield symmetry.Furthermore,based on theoretical analysis,the yield strength in the alloys mainly depended on the strengthening contributions of LAGBs and HAGBs,and strengthening effect of HAGBs most(~50%)to the yield strength improvement.Xiaoqiang Li Liang Ren Qichi Le Lei Bao Peipeng Jin Ping Wang Chunlong Cheng Xiong Zhou Chenglu Hu 2021Journal of Magnesium and Alloys2021,9,3:4
4Investigation of Portevin–Le Chatelier effect in rolled α-phase Mg-Li alloy during tensile and compressive deformation显示文摘Avoiding the Portevin-Le Chatelier(PLC)effect is very important concern for wrought Mg-Li alloys.In this study,the special PLC effect was found in rolled Mg-5Li-3Al-2Zn(LAZ532)alloy during tensile and compressive deformation.By observing microstructure evolution of the alloy during tensile and compressive deformation,it was found that prismaticand pyramidalslips were activated during tensile deformation,resulting in plenty of dislocation accumulation.In the deformation process after compressive yielding,the deformations in coarse grains and fine grains were dominated by{1012}extension twinning and grain boundary slip,respectively.Based on experimental result analysis,the sudden appearance of PLC effect in the later stage of axial tensile deformation(along rolled direction)was caused by interaction between solute atoms and dislocations.In the process of axial compressive deformation(along rolled direction),PLC effect presented the complex and changeable phenomenon of appeared-disappeared-appeared,which was mainly caused by the continuous nucleation of twin in the material,the activation of grain boundary slip and the shear deformation of twin,respectively.Xiaoqiang Li Chunlong Cheng Qichi Le Lei Bao Peipeng Jin Ping Wang Liang Ren Hang Wang Xiong Zhou Chenglu Hu 2020Journal of Materials Science & Technology2020,52,17:3
5Engineered biocontainable RNA virus vectors for non-transgenic genome editing across crop species and genotypes显示文摘CRISPR/Cas genome-editing tools provide unprecedented opportunities for basic plant biology research and crop breeding.However,the lack of robust delivery methods has limited the widespread adoption of these revolutionary technologies in plant science.Here,we report an efficient,non-transgenic CRISPR/Cas delivery platform based on the engineered tomato spotted wilt virus(TSWV),an RNA virus with a host range of over 1000 plant species.We eliminated viral elements essential for insect transmission to liberate genome space for accommodating large genetic cargoes without sacrificing the ability to infect plant hosts.The resulting non-insect-transmissible viral vectors enabled effective and stable in planta delivery of Cas12a and Cas9 nucleases as well as adenine and cytosine base editors.In systemically infected plant tissues,the deconstructed TSWV-derived vectors induced efficient somatic gene mutations and base conversions in multiple crop species with little genotype dependency.Plants with heritable,bi-allelic mutations could be readily regenerated by culturing the virus-infected tissues in vitro without antibiotic selection.Moreover,we showed that antiviral treatment with ribavirin during tissue culture cleared the viral vectors in 100%of regenerated plants and further augmented the recovery of heritable mutations.Because many plants are recalcitrant to stable transformation,the viral delivery system developed in this work provides a promising tool to overcome gene delivery bottlenecks for genome editing in various crop species and elite varieties.Qian Liu Chenglu Zhao Kai Sun Yinlu Deng Zhenghe Li 2023Molecular Plant2023,16,3:2
6Morphology,Chemistry and U-Pb Geochronology of Zircon Grains in Quartz Monzodiorite from the Sunzhuang Area,Fanshi County,Shanxi Province显示文摘The morphology, REE geochemistry and U-Pb geochronology of zircons from quartz monzodiorite in the Sunzhuang area, Fanshi County, Shanxi Province are presented in this study. The zircon crystals can be classified into four main types as: AB, L, S and P, and 24 subtypes such as AB4, AB5, L5, and S3. The maximum crystallization temperature of zircon was estimated as 850°C, with the minimum of 550°C. The peak temperatures of the zircon crystallization range from 650°C to 700°C. The abundances of Th and U in the zircon grains show large variation with the Th/U values > 0.4. The Th and U values also show a positive correlation in most zircons. The REE abundance of zircon in the quartz monzodiorite ranges from 280.4 ppm to 2143 ppm with an average of 856.4 ppm. The chondrite normalized zircon REE patterns show two types, one is characterized by HREE enrichment and LREE depletion with positive Ce-anomaly and negative Eu-anomaly whereas the other is HREE enriched and LREE depleted with negative Eu-anomaly but without positive Ce-anomaly, and relatively flat patterns. The LA-ICP-MS U-Pb geochronology on the zircons yields a mean age of 133±0.87 Ma. Our data on zircon morphology, composition and U-Pb geochronology reveal that the parent magma of the quartz monzodiorite which was emplaced during late Yanshanian had a mixed crust-mantle source, with crustal components dominating. The magma is inferred to have been water rich and alkaline with initial high oxygen fugacity. Post-magmatic hydrothermal activity occurred under relatively reducing conditions which was conductive for gold precipitation in the Yixingzhai gold deposit.SONG Jiye LI Shengrong QIN Mingkuan CAI Yuqi LUO Junyan ZHANG Juquan LI Chenglu SANTOSH M. 2015Acta Geologica Sinica(English Edition)2015,89,4:2
7Adsorption of malachite green from aqueous solution onto carbon prepared from Arundo donax root 显示文摘Zhang Jian Li Yan Zhang Chenglu 2008Journal of Hazardous Materials2008,15,:1
8Low temperature preparation of barium titanate tin films by a novel sol-gel-hydrothermal method显示文摘Zeng Jianming Lin Chenglu Li Jinhua 1998Materials Letters1998,38,:1
9Low temperature preparation of barium titanate thin films by a novel sol-gel-hydrothermal method显示文摘Zeng Jianming Lin Chenglu Li Jinhua 1998Materials Letters1998,38,:1
10Local singularity and S–A methods for analyzing ore-producing anomalies in the Jianbiannongchang area of Heilongjiang,China显示文摘The Heilongjiang Jianbiannongchang area is located at the confluence of the Great and Lesser Xing’an Ranges.This area has a complex magmatic and tectonic evolutionary history that has resulted in a complex and diverse geological background for mineralization.In this study,isometric logarithmic ratio(ILR)transformations of Au,Cu,Pb,Zn,and Sb contents were performed in the1:50,000 soil geochemical data of the Jianbiannongchang area.Robust principal component analysis(RPCA)was conducted based on ILR transformation.The local singularity and spectrum-area(S-A)methods were used to extract information on mineralogic anomalies.The results showed that:(1)the transformed data eliminated the influence of the original data closure effect,and the PC1and PC2 information obtained by applying RPCA reflected ore-producing element anomalies dominated by Au and Cu.(2)The local singularity method can enhance the information of the local strong and weak slow anomalies.After performing local singularity analysis on PC1 and PC2,the obtained local anomalies reflected the local singularity spatial anomaly patterns related to Cu and Au mineralization in this area,which is an effective method for trapping ore-producing anomalies.(3)Furthermore,the composite anomaly decomposition of PC1 and PC2 was performed using the S-A method,and the screened anomalous and background fields reflect the ore-producing anomalies related to Cu and Au mineralization.This information is in agreement with known Cu and Au mineralization.(4)The geochemical anomalies with mineralization potential were obtained outside the known mineralization sites by integrating the information of oreproducing anomalies extracted by the local singularity and S-A methods,providing the theoretical basis and exploration direction for future exploration in the study area.Zhonghai Zhao Kai Qiao Yiwen Liu Xiaomeng Cui Binbin Cheng Shanshan Liang Chenglu Li 2023Acta Geochimica2023,42,2:1
11First Total Synthesis of Analogue of Hypargenin B显示文摘Li Anpai Wang Hui Zhang Chenglu 2002Journal of Chinese Chemical Letters2002,13,2:1
12Valence reduction procedure from sol-gel V2O5 to VO2 thin films显示文摘 Li Jinhua Lin Chenglu 2002Applied Surface Science2002,191,14:1
13Valence reduction process from Sol-Gel V2O5 to VO2 thin films显示文摘Yuan Ningyi Li Jinhua Lin Chenglu 2002Applied surface science2002,191,14:1
14Physiological responses of Phragmites australis to wastewater with different chemical oxygen demands显示文摘Jingtao Xu Jian Zhang Huijun Xie Cong Li Nan Bao Chenglu Zhang Qianqian Shi 2010Ecological Engineering2010,,10:1
15Slow Positron Annihilation in Silicide Films Formed by Solid State Interaction of Co/Ti/Si and Co/Si显示文摘Slow positron beam was used to investigate the solid state reaction of Co/Si and Co/Ti/Si.Variable-energy(0-20 keV)positrons were implanted into samples at different depths.The Doppler broadening of the annihilation γ-ray energy spectra measured at a number of different incident positron energies is characterized by a line-shape parameter,S.It was found that the measured S parameters are sensitive to thin film reaction and crystalline characteristics.In particular,the S parameter of epitavial CoSi_(2)formed by the ternary reaction is quite different from that of the polycrystalline CoSi_(2)formed by direct reaction of Co with Si.LIU Ping LIN Chenglu ZHOU Zuyao ZOU Shichang WENG Huiming HAN Rongdian LI Bingzong 1994Chinese Physics Letters1994,11,4:0
16Progress in phototaxis mechanism research and micromanipulatlon techniques of algae cells显示文摘趋光性的运动是一些微生物的一个特征,点亮环境的反应。大多数水藻有戏剧性地趋光性的回答,位于复杂生物、物理、光化学的机制下面被包含。与 micro/nano 和传感器技术的发展,大进步在水藻趋光性的研究被取得了。这篇评论文章总结在关于功能的趋光性的结构的研究取得的进步,相片反应过程的机制和在水藻的趋光性的 photodynamics,并且描述最近的发达微追踪的技术和微操作技术。而且基于我们的 o 研究结果,在趋光性和光合作用之间的潜在的关联被讨论,并且为趋光性的机制的未来研究的方向被建议。WEN Chenglu LI Heng WANG Pengbo LI Wei ZHAO Jingquan 2007Progress in Natural Science:Materials International2007,17,3:0
17PBSVis: A Visual System for Studying Behavior Patterns of Pseudo Base Stations显示文摘Haocheng Zhang Xiang Tang Chenglu Li Yiming Bian Xiaoju Dong Xin Fan 2018国际计算机前沿大会会议论文集2018,,1:0
18Permian tectonic evolution and continental accretion in the eastern Central Asian Orogenic Belt:A perspective from the intrusive rocks显示文摘The tectonic evolution and history of continental accretion of the eastern Central Asian Orogenic Belt(CAOB)are not yet fully understood.In this study,we investigate Permian intrusive rocks from the Jiamusi Block of the eastern CAOB to constrain the tectonic evolution and continental accretion of this region during the late-stage evolution of the Paleo-Asian Ocean.Our new data show that Early Permian gabbro-diorites were derived from the partial melting of depleted mantle metasomatized by oceanic-slab-released fluids.Middle Permian adakitic granites have low Na2O and MgO and high K2O contents,indicating a thickened-lower-crust source.Late Permian S-type granites were derived from the partial melting of continental crust.A compilation of the available geochronological data for Permian intrusive rocks(including adakitic and A-,S-,and I-type granites and mafic rocks)from the eastern CAOB reveals that the A-type granites formed mainly during the Early–Middle Permian,S-type and adakitic granites mostly during the Middle–Late Permian,and I-type granites and mantle-derived mafic rocks throughout the Permian.The A-type granites,which are proposed to have been sourced from thinned continental crust,indicate an extensional setting in the eastern CAOB during the Early Permian.The Middle–Late Permian adakitic granites imply a thickened continental crust,which indicates a compressional setting.Therefore,the eastern CAOB underwent a transition from extension to compression during the Middle Permian,which was probably triggered by the late-stage subduction of Paleo-Asian oceanic crust.Considering the petrogenesis of the intrusive rocks and inferred regional tectonic evolution of the eastern CAOB,we propose that vertical underplating of mantle-and oceanic-slabderived magmas contributed the materials for continental crust accretion.Anzong Fu Hongyan Geng Changzhou Deng Chenglu Li Jishuang Ding Bizheng Yang Wenpeng Yang 2024Geoscience Frontiers2024,15,2:0
19Two distinct roles of Al_(2)Sm and Al_(11)Sm_(3) phases on the corrosion behavior of the magnesium alloy Mg-5Sm-xAl显示文摘The roles of Al11Sm3 and Al_(2)Sm phases on microstructure evolution,mechanical properties and corrosion behavior of the Mg-5Sm-x Al system was investigated.The results showed that adding Al to Mg–5Sm binary alloy brought two Al–Sm phases,Al11Sm3 and Al_(2)Sm,which had two distinct roles regarding the microstructure evolution,mechanical properties and corrosion behavior of the Mg-Sm-Al alloy.Al11Sm3 produced a strong galvanic couple with the Mg matrix,and significantly accelerated the corrosion.The Al_(2)Sm particles promoted heterogeneous nucleation and refined the grains,which increased the tensile strength and ductility.Both types of Al–Sm particles provided strengthening effect for the alloy.With higher Al contents,Al2Sm formed an Al oxide protective surface layer and increased corrosion resistance.Xingrui Chen Qi Zou Qichi Le Shaochen Ning Chenglu Hu Xiaoqiang Li Anrej Atrens 2021Progress in Natural Science:Materials International2021,31,4:0
20Fatigue Life Prediction of Gray Cast Iron for Cylinder Head Based on Microstructure and Machine Learning显示文摘Conventional fatigue tests on complex components are difficult to sample,time-consuming and expensive.To avoid such problems,several popular machine learning(ML)algorithms were used and compared to predict fatigue life of gray cast iron(GCI)with the complex microstructures.The feature analysis shows that the fatigue life of GCI is mainly influenced by the external environment such as the stress amplitude,and the internal microstructure parameters such as the percentage of graphite,graphite length,stress concentration factor at the graphite tip,matrix microhardness and Brinell hardness.For simplicity,collected datasets with some of the above features were used to train ML models including back-propagation neural network(BPNN),random forest(RF)and eXtreme gradient boosting(XGBoost).The comparison results suggest that the three models could predict the fatigue lives of GCI,while the implemented RF algorithm is the best performing model.Moreover,the S–N curves fitted by the Basquin relation in the predicted data have a mean relative error of 15%compared to the measured data.The results have demonstrated the advantages of ML,which provides a generic way to predict the fatigue life of GCI for reducing time and cost.Xiaoyuan Teng Jianchao Pang Feng Liu Chenglu Zou Xin Bai Shouxin Li Zhefeng Zhang 2023Acta Metallurgica Sinica(English Letters)2023,36,9:0
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