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| 1 | Distribution and Pathogenicity of Bacteria Species Carried by Bursaphelenchus xylophilus in China 显示文摘 | Zhao Boguang Wang Huili Han Sufen | 2003 | Nematology2003,5,6: | 1 |
| 2 | Investigation of deteriorated concrete railway ties显示文摘 | Jin Qinhua Deng Min Han Sufen | 1996 | Cement and Concrete Research1996,26,7: | 1 |
| 3 | Growth and micromagnetic simulation of magnetite nanoparticles显示文摘Magnetite nanoparticles with different sizes and different assemblies were synthesized via hydrothermal method.Micromagnetic simulation shows the magnetite nanocubes with different sizes have different energy states,which determines the assembly mode.Magnetite nanocubes with the side length of 30-60 nm tended to be dispersed while both nanochains and dispersed nanoparticles were found to grow for the nanocubes with the side length less than 30 nm,which can be explained in the fact that the above two assembly modes have very close energies.The assembly mode of nanocubes with the size bigger than 60 nm is generally nanorings consisting of connected inter-grown nanocubes and the nanocubes are no longer single domain.The simulations are consistent with the experimental results. | ZHAO SuFen SUN Qian WANG RongMing HAN YuNan | 2011 | Science China(Physics,Mechanics & Astronomy)2011,54,7: | 1 |
| 4 | Autoclave method for identification of alkalireactivity of carbonate rocks显示文摘 | TANG Mingshu LAN Xianghui HAN Sufen | 1994 | Cement Concrete and Composite1994,16,2: | 1 |
| 5 | Distribution and pathogenicity of bacteria species carried by Bursaphelenchus xylophilus in China显示文摘 | Boguang ZHAO Huli WANG Sufen HAN | 2003 | Nematology2003,5,6: | 1 |
| 6 | Distribution and pathogenicity of bacteria species carried by Bursaphelenchus xylophilus in China显示文摘 | ZHAO Boguang WANG Huli HAN Sufen | | 0,,06: | 1 |
| 7 | Tailoring Anti-Impact Properties of Ultra-High Performance Concrete by Incorporating Functionalized Carbon Nanotubes显示文摘Replacing micro-reinforcing fibers with carbon nanotubes(CNTs)is beneficial for improving the impact properties of ultra-high performance concrete(UHPC);however,the weak wettability and dispersibility of CNTs and the weakly bonded interface between CNTs and UHPC limit their effectiveness as composites.Therefore,this study aims to enhance the reinforcement effect of CNTs on the impact properties of UHPC via functionalization.Unlike ordinary CNTs,functionalized CNTs with carboxyl or hydroxyl groups can break the Si-O-Ca-O-Si coordination bond in the C-S-H gel and form a new network in the UHPC matrix,effectively inhibiting the dislocation slip inside UHPC matrix.Furthermore,functionalized CNTs,particularly carboxyl-fu nctionalized CNTs,co ntrol the crystallization process and microscopic morphology of the hydration products,significantly decreasing and even eliminating the width of the aggregate-matrix interface transition zone of the UHPC.Moreover,the functionalized CNTs further decrease the attraction of the negatively charged silicate tetrahedron to Ca2+in the C-S-H gel,while modifying the pore structure(particularly the nanoscale pore structure)of UHPC,leading to the expansion of the intermediate CS-H layer.The changes in the microstructures of UHPC brought about by the functionalized CNTs significantly enhance its dynamic compressive strength,peak strain,impact toughness,and impact dissipation energy at strain rates of 200-800 s^(-1).Impact performance of UHPC containing a small amount of carboxyl-functionalized CNTs(especially the short ones)is generally better than that of UHPC containing hydroxyl-functionalized and ordinary CNTs;it is even superior to that of UHPC with a high steel fiber content. | Jialiang Wang Sufen Dong Sze Dai Pang Xun Yu Baoguo Han Jinping Ou | 2022 | Engineering2022,,11: | 0 |
| 8 | Nanomechanical Characteristics of Interfacial Transition Zone in Nano-Engineered Concrete显示文摘This study investigates the effects of nanofillers on the interfacial transition zone(ITZ)between aggregate and cement paste by using nanoindentation and statistical nanoindentation techniques.Moreover,the underlying mechanisms are revealed through micromechanical modeling.The nanoindentation results indicate that incorporating nanofillers increases the degree of hydration in the ITZ,reduces the content of micropores and low-density calcium silicate hydrate(LD C-S-H),and increases the content of highdensity C-S-H(HD C-S-H)and ultra high-density C-S-H(UHD C-S-H).In particular,a new phase,namely nano-core-induced low-density C-S-H(NCILD C-S-H),with a superior hardness of 2.50 GPa and an indentation modulus similar to those of HD C-S-H or UHD C-S-H was identified in this study.The modeling results revealed that the presence of nanofillers increased the packing density of LD CS-H and significantly enhanced the interaction(adhesion and friction)among the basic building blocks of C-S-H gels owing to the formation of nano-core-shell elements,thereby facilitating the formation of NCILD C-S-H and further improving the performance of the ITZ.This study provides insight into the effects of nano fillers on the ITZ in concrete at the nanoscale. | Xinyue Wang Sufen Dong Zhenming Li Baoguo Han Jinping Ou | 2022 | Engineering2022,,10: | 0 |