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| 1 | Dynamic instability of a pump-turbine in load rejection transient process显示文摘Load rejection is one of the most crucial transient processes in pump-turbines. However, only a few achievements on the internal flow mechanism of pump-turbines in load rejection processes have been presented. In this study, firstly, the load rejection process in a pump-turbine was simulated with a three-dimensional unsteady turbulent numerical method using the technology of dynamic mesh and the user-defined functions in the FLUENT software. The rotational speed predicted through numerical simulation agrees well with experimental data. Secondly, based on numerical simulations, a dynamic instability in the load rejection process was found and presented that the pressure and performance characteristics, including hydraulic torque on the runner and the discharge, fluctuate in the overall trend. Meanwhile, all the performance characteristics and the pressure fluctuate sharply near the operating condition points, where hydraulic torque on the runner is equal to zero or reverse flow is maximum at reverse pump conditions. Finally, the time-frequency features and formation mechanism of the dynamic instability were analyzed emphatically. The analysis of the internal flow in the pump-turbine reveals that dynamic instability in the load rejection process are mainly caused by the vortex flow in the tandem cascades regions. Furthermore, the possible methods to improve the dynamic instability in the load rejection process were recommended. | FU XiaoLong LI DeYou WANG HongJie ZHANG GuangHui Li ZhengGui WEI XianZhu | 2018 | Science China(Technological Sciences)2018，61，11： | 5 |
| 2 | Can nanoparticles and nano-protein interactions bring a bright future for insulin delivery?显示文摘Insulin therapy plays an essential role in the treatment of diabetes mellitus.However,frequent injections required to effectively control the glycemic levels lead to substantial inconvenience and low patient compliance.In order to improve insulin delivery,many efforts have been made,such as developing the nanoparticles (NPs)-based release systems and oral insulin.Although some improvements have been achieved,the ultimate results are still unsatisfying and none of insulin-loaded NPs systems have been approved for clinical use so far.Recently,nano?protein interactions and protein corona formation have drawn much attention due to their negative influence on the in vivo fate of NPs systems.As the other side of a coin,such interactions can also be used for constructing advanced drug delivery systems.Herein,we aim to provide an insight into the advance and flaws of various NPs-based insulin delivery systems.Particularly,an interesting discussion on nano?protein interactions and its potentials for developing novel insulin delivery systems is initiated. | Ting Zhang James Zhenggui Tang Xiaofan Fei Yanping Li Yi Song Zhiyong Qian Qiang Peng | 2021 | Acta Pharmaceutica Sinica B2021，11，3： | 3 |
| 3 | Polyhexamethylene biguanide chemically modified cotton with desirable hemostatic,inflammation-reducing,intrinsic antibacterial property for infected wound healing显示文摘Medical cotton dressing is cheap and widely used in diversified fields,but in the application of promoting wound healing,the continuous research of multifunctional medical cotton dressing is still of great significance.Here,we developed a fresh type of antibacterial cotton dressing through a succinct strategy based on chemically anchoring polyhexamethylene biguanide(PHMB).Intriguingly,after PHMB modification,the cotton dressing exhibited outstanding antibacterial performance which could maintain>99.99%antibacterial rate after several treatments,including washing 50 times,repeated use 10 times,UV irradiation for 7 days,cationic dyes dying,and conditioned under 90℃water bath for 2 h.In addition,the water contact angle of cotton dressing increased dramatically from 0°to 111°,which could facilitate bacterial adhesion,thus further enhance the antibacterial efficiency,and easily remove the bacterial debris.Apart from that,the developed cotton dressing showed good cytocompatibility,promoted blood clotting and expression of platelets,and promoted the wound healing process in the infection intervened skin wound model.Taken together,this antibacterial cotton dressing with desirable blood clotting,sustained protection against bacterial infection and bacterial removal features shows the potential to be a candidate for infected skin wound healing. | Chuan Guo Jie Zhang Xiaojun Feng Zhenggui Du Yuanzhang Jiang Yidong Shi Guanghui Yang Lin Tan | 2022 | Chinese Chemical Letters2022，33，6： | 2 |
| 4 | The Pellet Enhanced Performance on the HL-2A Tokamak显示文摘 | DING Xuantong YANG Qingwei YAN Longwen ZHU Genliang CAO Zeng XIAO Zhenggui GAO Qingdi LONG Yongxing LIU Dequan LIU Yi ZHOU Yan PAN Yudong CUI Zhengying HUANG Yuan LIU Zetian SHI Zhongbing JI Xiaoquan XIAO Weiwen LIU Yong | 2006 | Southwestern Institute of Physics Annual Report2006，，1： | 1 |
| 5 | Structure and luminescence of Ln1-xBO3∶Eux(Ln =Y,Gd)显示文摘 | WEI Zhenggui XIE P ZHANG W | 2001 | J Inorg Mater2001，16，1： | 1 |
| 6 | Corre- lationbetween Size-Dependent Luminescent Properties and LocalStructure around Eu^3+ Ions in YBO3: Eu Nanocrystals: an XAFS Study 显示文摘 | Wei Zhenggui Sun Lingdong Jiang Xiaocheng | 2003 | Chemistry of Materials2003，15，15： | 1 |
| 7 | Synthesis and size dependent luminescent properties of hexagonal(Y, Gd)BO3: Eu nanocrystals 显示文摘 | Wei Zhenggui Sun Lingdong Liao Chunsheng | 2002 | Journal of Materials Chemistry2002，12，12： | 1 |
| 8 | Size- Dependent Chromaticityin YBO3: Eu Nanocrystals: Correlation with Microstructure and Site Symmetry 显示文摘 | Wei Zhenggui Sun Lingdong Liao Chunsheng | 2002 | Journal of Physical Chemistry B2002，106，10： | 1 |
| 9 | Vanadium phosphorus oxide catalyst modified by silver doping for mild oxidation of styrene to benzaldehyde 显示文摘 | LIU Junhua WANG Fang GU Zhenggui | 2009 | Journal of Molecular Catalysis A: Chemical2009，151，31： | 1 |
| 10 | Fluore- scence intensity and color purity improvement in nanosized YBO3: Eu 显示文摘 | Wei Zhenggui Sun Lingdong Liao Chunsheng | 2002 | Applied Physics Letters2002，80，8： | 1 |
| 11 | Isomerization of alkyl naphthalene and refining of 2-methylnaphthalene显示文摘A preparation process of 2-methylnaphthalene(2-MN) was proposed by isomerization, side-stream distillation and extractive distillation. The isomerization of alkyl naphthalene was catalyzed by acid-treated HBEA zeolites,and the 2-MN selectivity of isomerization was 92.70%. Side-stream distillation and extractive distillation were investigated by simulation, and effects of operation parameters on 2-MN were studied. Further, the simulated results were verified by experiment. Under the optimal condition, the mass fraction of 2-MN reached to98.09% in the product, and the yield was 83.84% in refining process. | Hao Sun saijian Shi Zhenggui Gu | 2017 | Chinese Journal of Chemical Engineering2017，25，2： | 1 |
| 12 | Recovery of Ce( IV ) and Th( IV ) from Rare Earth( Ⅱ ) with Cyanex923显示文摘 | Lu Jun Wei Zhenggui Li Deqian | 1998 | Hydrometallurgy1998，50，： | 1 |
| 13 | Extended X-ray absorption fine-structure study of the bound form of lanthane in chlorophyll-a from Dicranopteris dichotoma显示文摘 | Hong Fashui Wei Zhenggui Zhao Guiwen Tao Ye Hu Tiandou Xie Yanin Liu Tao | 2001 | Biological Trace Element Research (-)2001，，1： | 1 |
| 14 | Size-depen- dent chromaticity in YBOs : Eu nanocrystals: correlation withmicrostrueture and site symmetry显示文摘 | Wei Zhenggui Sun Lingdong Liao Chunsheng | 2002 | The Journal of Physical Chemistry B2002，106，10： | 1 |
| 15 | Fluoresc- ence intensity and color purity improvement in nanosized YBO3 Eu显示文摘 | Wei Zhenggui Sun Lingdong Liao Chunsheng | 2002 | AIP Publishing2002，80，8： | 1 |
| 16 | A study of soils-reinforcement interface friction显示文摘 | Wang Zhenggui Werner Richwien | | 0，，01： | 1 |
| 17 | Removal of nitrobenzene from aqueous solution by adsorption on nanocrystalline hydroxyapatite显示文摘 | Wei Wei Rong Sun Jing Cui Zhenggui Wei | 2010 | Desalination2010，，1： | 1 |
| 18 | A study of soils-reinforcement interface friction显示文摘 | Wang Zhenggui Werner Richwien | | 0，，01： | 1 |
| 19 | Effect of lanthanum on aged seed germination of rice显示文摘 | Fashui Hong Zhenggui Wei Guiwen Zhao | 2000 | Biological Trace Element Research (-)2000，，1： | 1 |
| 20 | A study of soil-rein- forcement interface friction显示文摘 | Zhenggui Wang Werner Richwien | 2002 | Journal of Geotechnical and Geoenvironmental Engineering2002，128，1： | 1 |
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