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| 1 | Initial corrosion behavior and mechanism of 7B04 aluminum alloy under acid immersion and salt spray environments显示文摘The initial corrosion behavior and mechanism of 7B04 aluminum alloy under acid immersion and salt spray environments(pH=3.5)are studied by Scanning Electron Microscope(SEM),optical microscope,Fourier Transform Infrared Spectroscopy(FT-IR),X-Ray Diffraction(XRD),potentiodynamic polarization,Electrochemical Impedance Spectroscopy(EIS),and Scanning Kelvin Probe(SKP).The results show that pitting corrosion occurs at the initial corrosion stage,and the potential difference between the second phase particles is the main cause of pitting.Pitting pits on different locations gradually expand and coalesce with the proceeding of corrosion.The main components of corrosion products are Al_(2)O_(3),Al(OH)_(3),and AlCl_(3),and the generation rate of the corrosion product layer under the salt spray environment is larger than that under acid immersion environment.Under both environments,the Volta potential distribution first disperses and then concentrates,while the charge transfer resistance first decreases and then increases with the corrosion time.The Volta potential gradually shifts in a positive direction,indicating that corrosion products have an inhibitory effect on corrosion.After the same corrosion time,the corrosion product layer resistance and the expectation of the Volta potential of the salt spray sample are higher than those of the immersion sample.Comparatively,the corrosion current density for the salt spray sample is significantly lower than the immersion sample,which indicates that the thicker the corrosion product layer,the stronger the inhibition of corrosion reaction. | Yangguang ZHANG Yueliang CHEN Yong ZHANG Guixue BIAN Chenguang WANG Andong WANG | 2022 | Chinese Journal of Aeronautics2022，35，1： | 8 |
| 2 | Cavity engineering of two-dimensional perovskites and inherent light-matter interaction显示文摘Two-dimensional(2D)perovskites are hybrid layered materials in which the inorganic lattice of an octahedron is sandwiched by organic layers.They behave as a quantum-well structure exhibiting large exciton binding energy and high emission efficiency,which is excellent for photonic applications.Hence,the cavity modulation and cavity devices of 2D perovskites are widely investigated.In this review,we summarize the rich photophysics,synthetic methods of different cavity structures,and the cavity-based applications of 2D perovskites.We highlight the strong exciton–photon coupling and photonic lasing obtained in different cavity structures.In addition,functional optoelectronic devices using cavity structures of 2D perovskites are also reviewed. | Shuai Zhang Yangguang Zhong Fan Yang Qinxuan Cao Wenna Du Jianwei Shi Xinfeng Liu | 2020 | Photonics Research2020，8，11： | 7 |
| 3 | Event-triggered encirclement control of multi-agent systems with bearing rigidity显示文摘In recent years, the problem of multi-agent encirclement has attained much attention and was extensively studied. However, few work consider the factor that the on-board calculation as well as the communication capacity in the multi-agent system is limited. We investigate the encirclement control by employing the newly developed bearing rigidity theory and event-triggered mechanism. Firstly, in order to reduce the onboard loads,the event-triggered mechanism is considered in the framework and further an event-triggered control law based on bearing rigidity is proposed. The input-to-state stability(ISS) of networked agents is also analyzed by using the Lyapunov method and the cyclic-small-gain theory. In addition, the lower bound for the inter-event times is provided. Finally, to verify the efficiency and feasibility of the proposed encirclement control law, numerical experiments are investigated. | Yangguang YU Zhiwen ZENG Zhongkui LI Xiangke WANG Lincheng SHEN | 2017 | Science China(Information Sciences)2017，60，11： | 6 |
| 4 | CpG oligodeoxynucleotides inhibit tumor growth and reverse the immunosuppression caused by the therapy with 5-fIuorouracil in murine hepatoma显示文摘AIM: To investigate the effect of CpG-containing oligodeoxynucleotides (CpG ODN) alone or in combination with the chemotherapeutic agent 5-fluorouracil (5-FU) on tumor growth and whether CpG ODN can reverse the immunosuppression caused by the chemotherapy with 5-FU in murine hepatoma model.METHODS: Hepatoma model was established by subcutaneous inoculation with hepatoma-22 (H22) cells into the right flank of BALB/c mice. Mice with tumor were treated by peritumoral injection of CpG ODN alone or in combination with subcutaneous injection of 5-FU. Tumor size was quantified regularly. Serum levels of IL-12 and IFN-γ in mice were assayed by enzyme-linked immunosorbent assay (ELISA). The lytic capacity of splenic NK cells was tested by lactate dehydrogenase release assay.RESULTS: Peritumoral injection of CpG ODN alone or in combination with subcutaneous injection of 5-FU, and the treatment with 5-FU alone all led to significant inhibition of hepatoma growth. The mean tumor volumes fell by 46.66% in mice injected with CpG ODN, 68.34% in the 5-FU treated mice, and 70.23% in mice treated with the combination of CpG ODN and 5-FU than in controls. There was no significant difference in tumor size between 5-FUtreated mice and mice treated with the combination of 5-FU and CpG ODN (P>0.05). The serum levels of IL-12and IFN-γ of mice treated with CpG ODN alone (IL-12:464.50±24.37 pg/mL; IFN-γ:134.20±25.76 pg/mL) or with the co-administration of CpG ODN and 5-FU (IL-12:335.83±28.74 pg/mL; IFN-γ:111.00±5.33 pg/mL)were significantly higher than that of controls (IL-12:237.50±45.31 pg/mL; IFN-γ: 56.75±8.22 pg/mL). The production of IL-12 and IFN-γwas suppressed moderately in 5-FU-treated mice (IL-12:166.67±53.22 pg/mL;53.33±16.98 pg/mL) compared to control mice (P>0.05),whereas the combination of CpG ODN and 5-FU significantly increased the serum levels of IL-12 and IFN-γ compared to 5-FU alone (P<0.05). The NK cell killing activity in CpG ODNtreated mice (44.04±1.38%) or the mice treated with CpG ODN combined with 5-FU (30.67±1.28%) was significantly potentiated compared to controls (19.22±0.95%, P<0.05).The co-administration of CpG ODN and 5-FU also significantly enhanced the lytic activity of NK cells when compared with the treatment with 5-FU alone (12.03±1.42%, P<0.05).CONCLUSION: The present data suggests that CpG ODN used as single therapeutic agent triggers anti-tumor immune response to inhibit the growth of implanted hepatoma and reverses the immunosuppression caused by the chemotherapy with 5-FU. | Xian-SongWang ZhenSheng You-BingRuan YangGuang Mu-LanYang | 2005 | World Journal of Gastroenterology2005，11，8： | 5 |
| 5 | Determination of full-scale pore size distribution of Gaomiaozi bentonite and its permeability prediction显示文摘Gaomiaozi(GMZ)bentonite is a potential buffer/backfill material for a deep geological disposal of highlevel radioactive waste.It has a wide pore size distribution(PSD)with sizes ranging from several nanometers to more than one hundred microns.Thus,properly characterizing the pore structures of GMZ bentonite is a challenging issue.In this study,pressure-controlled porosimetry(PCP),ratecontrolled porosimetry(RCP),and scanning electron microscopy(SEM)were used to investigate the PSD of GMZ bentonite,The results indicate that each method has its limitation,and a combined use of PCP and RCP is suitable to obtain the full-scale PSD of GMZ bentonite.Moreover,we also compared the full-scale PSD with nuclear magnetic resonance(NMR)result.It is found that there is no significant difference in the range of PSD characterization between NMR and mercury intrusion method(PCP and RCP).However,in a ce rtain range,the detection accuracy of NMR is higher than that of mercury injection method.Finally,permeability prediction based on PCP and SEM data was conducted,and both of the two methods were found to be able to predict the permeability.The combined method is effective to obtain the full-scale PSD of GMZ bentonite,which is the key to estimation of the sealing ability of bentonite buffer. | Jiangfeng Liu Shuaibing Song Xulou Cao Qingbin Meng Hai Pu Yangguang Wang Jianfeng Liu | 2020 | Journal of Rock Mechanics and Geotechnical Engineering2020，12，2： | 5 |
| 6 | Overview and Development of Variable Frequency AC Generators for More Electric Aircraft Generation System显示文摘With the development of more electric aircraft(MEA),higher demands for electrical energy are put forward in generation systems.Compared to constant frequency AC(CFAC)generation systems,the constant speed drive(CSD)is eliminated and integrated starter/generator(SG)can be realized in variable frequency AC(VFAC)generation systems.In this paper,an overview of VFAC generators for safety-critical aircraft applications is presented,with a particular focus on the key features and requirements of candidate generators and the starting control strategies.Wound rotor synchronous machines(WRSMs)are typical generators used in VFAC generation systems so far.Meanwhile,hybrid excitation synchronous machines(HESMs)and cage-type induction machines are promising candidates for VFAC generation systems.The generation operation of WRSM is relatively mature,however,the SG technology of WRSM is still full of challenges.As one of the most important issues,the starting excitation methods of WRSM are summarized.An HESM-based VFAC SG system is proposed and developed in this paper.The experimental results show that the starting mode,transition mode and generating mode of the VFAC SG system are realized.The continuous progress of VFAC generation system makes great contributions to the realization of MEA. | Zhuoran Zhang Jincai Li Ye Liu Yanwu Xu Yangguang Yan | 2017 | Chinese Journal of Electrical Engineering2017，3，2： | 4 |
| 7 | Reversible Histone Acetylation Involved in Transcriptional Regulation of WT1 Gene显示文摘验证参与可逆嘘在人的 Wilm 的肿瘤的 transcriptional 规定的一 acetylation 1 基因(WT1 ) ,我们分析了角色嘘一 deacetylases (HDAC ) 并且嘘在这个 epigenetic 过程的一 acetyltransferase。检验的六 HDAC (HDAC1-6 ) , HDAC4 和 HDAC5 被发现有重要镇压在 WT1 记者基因的活动完成,由酶记者试金和量的即时反向的抄写聚合酶链反应揭示了试金。酶记者试金证明一 acetyltransferase p300 能在 WT1 记者的激活与转录因子 Sp1, c-Myb,和 Ets-1 抵抗 HDAC4/HDAC5-mediated 压抑和那 p300/CBP synergized 的 hist。染色质免疫降水实验证明 p300 支持 acetylation 水平嘘在 WT1 intronic 增强子的一 H3。把数据基于这些,我们为参与建议了一个假想模型可逆嘘在 WT1 基因的 transcriptional 规定的一 acetylation。这研究提供进一步的卓见进联系的 WT1 基因和 WT1 的 transcriptional 规定的机制疾病处理。 | Yangguang SHAO Jun LU Cao CHENG Liguo CUI Guoping ZHANG Baiqu HUANG | 2007 | Acta Biochimica et Biophysica Sinica2007，39，12： | 4 |
| 8 | Effect of Copper Toxicity on Lymphoid Organs in Broilers显示文摘The experiment was conducted to examine the effect of copper toxicity on lymphoid organs by experimental pathology andflow cytometry (FCM). 180 one-day-old Avian broilers were divided into three groups, and fed diets as follows: 1) Control(Cu 11.97 mg kg-1 diet), 2) Cu- toxic groupⅠ(Cu 650 mg kg-1) and 3) Cu- toxic groupⅡ(Cu 850 mg kg-1) for six weeks.Compared with the control, the growth index of the thymus, spleen and bursa of Fabricius were markedly reduced (P<0.05or P<0.01), the G0/G1 phase of cell cycles of the thymus, spleen and bursa of Fabricius was higher (P<0.05 or P<0.01), whilethe S phase and proliferating index were lower (P<0.05 or P<0.01) in both Cu-toxic group Ⅰ and Cu-toxic group Ⅱ. Theresults demonstrated that Cu toxicity seriously impaired the progression of lymphocytes from the G0/G1 phase to the Sphase, inhibited the growth and development of lymphoid organs. | CUIHeng-min YANGGuang PENGXi DENGJun-liang LIDe-bing | 2005 | Agricultural Sciences in China2005，4，3： | 2 |
| 9 | Effect of Copper Toxicity on Lymphoid Organs in Ducklings显示文摘one-day-old Tianfu meat ducklings were divided into three groups, and fed on dietsas follows:(1)control (Cu 12.16 mg kg-1),(2) copper toxicⅠ(Cu 850 mg kg-1) and (3)copper toxicⅡ( Cu 1050 mg kg-1) for studies on effects of copper toxicity on lymphoidorgans in duckling with the methods of experimental pathology and flow cytometry (FCM).The weight and growth index of the thymus, spleen and bursa of Fabricius were markedlyreduced (P<0.05 or P<0.01) in both copper toxic groupⅠand Cu toxic group Ⅱ whencompared with control group. The G0/G1 phase of the cell cycle of the thymus, spleen andbursa of Fabricius was much higher, and S, G2+M phases lower in Cu toxic groupsⅠand Ⅱthan in the control group. There were lymphocyte degeneration and depletion of lymphoidorgans, and the reticular cells of spleen and bursa of Fabricius proliferated and thereticular cells of thymus were also degenerate and necrotic in Cu toxic groups. Theresults demonstrated that Cu toxicity seriously impaired the progression of lymphocytesfrom the G0/G1 phase to S phase, inhibited the development of lymphoid organs and causedmarked pathological injury in lymphoid organs. The results also showed that the effectof Cu toxicity on the primary lymphoid organs occurred stronger than on the secondarylymphoid organs. The effect of Cu toxicity was the greatest on the bursa of Fabricius,followed by the thymus, and then the spleen. Potential mechanisms underlying aforementionedobservation were also discussed. | CUIHeng-min CHENHuai-tao PENGXi YANGGuang DENGJun-liang LIDe-bing | 2004 | Agricultural Sciences in China2004，3，3： | 2 |
| 10 | Therapeutic effects of a novel tylophorine analog, NK‐007, on collagen‐induced arthritis through suppressing tumor necrosis factor α production and Th17 cell differentiation显示文摘 | Ti Wen Yangguang Li Meng Wu Xiaolin Sun Xiucong Bao Yuquan Lin Jianlei Hao Lin Han Guangchao Cao Ziwen Wang Yuxiu Liu Zhenzhou Wu Zhangyong Hong Puyue Wang Liqing Zhao Zhanguo Li Qingmin Wang Zhinan Yin | 2012 | Arthritis & Rheumatism2012，，9： | 2 |
| 11 | Optimum design of scroll profiles created from involute of circle with variable radii by using finite element analysis显示文摘 | Liu Yangguang Tang Y H Chang Y C | 2012 | Mecha- nism and Machine Theory2012，55，： | 1 |
| 12 | Equality and Inequality of Opportunity in Education: Chinese Emergent Bilingual Children in the English Mainstream Classroom显示文摘 | Yangguang Chen | 2007 | Language Culture and Curriculum2007，，1： | 1 |
| 13 | 显示文摘 | QinLanyun(钦兰云) WangWei(王维) YangGuang(杨光) | 2013 | 中国激光2013，40，1： | 1 |
| 14 | EffectofthermalboundaryGresistanceonthethermalconductivityofdiamond/Agmetalmatrixcomposites显示文摘 | YangGuang Du Yongguo BaiShuxin etal | 1998 | JournalofNationalUniversityofDefenseTechnology1998，20，： | 1 |
| 15 | Full Range Power Control Strategies for Variable-Speed Fixed-Pitch Wind Turbines显示文摘 | CHEN Jie GONG Chunying CHEN Jiawei CHEN Ran YAN Yangguang | 2012 | 中国电机工程学报2012，32，30： | 1 |
| 16 | An unusual organic and inorganic chain-like hybrid complex N (o-phen=o-phenanthroline) 显示文摘 | Wang Shutao Li Yangguang Wang Enbo | 2002 | Journal of Solid State Chemistry2002，167，2： | 1 |
| 17 | A high- performance magnetorheological material: Preparation, char- acterization and magnetic-mechanic coupling properties 显示文摘 | Xu Yangguang Gong Xinglong Xuan Shouhu | 2011 | Soft Matter2011，7，11： | 1 |
| 18 | Start-up process and step response of a DC-DC converter loaded by constant power loads显示文摘 | Zhang Fanghua Yan Yangguang | 2011 | IEEE Transactions on Industrial Electronics2011，58，1： | 1 |
| 19 | Seamlesstransfer of single-phase grid-interactive invertersbetween grid-connected and stand-alone modes显示文摘 | Yao Zhilei Xiao Lan Yan Yangguang | 2010 | IEEE Transactions on Power Electronics2010，25，6： | 1 |
| 20 | 显示文摘 | QinLanyun(钦兰云) WangWei(王维) YangGuang(杨光)etal | 2014 | 中国激光2014，41，3： | 1 |
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