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| 1 | Experimental Study on Emission Performance of an LPP/TVC显示文摘A key issue in the commercial aircraft engine design is environmental acceptability, and designers are continually challenged to reduce emissions. In this paper, an experimental investigation is performed to evaluate the emission performance of a liquid-fueled trapped vortex combustor (TVC) under lean premixed prevaporized (LPP) mode. When operating as an LPP system, a TVC is fueled both in the cavities and in the main stream. The correlations between the emission performance and the total excess air ratio, the positions (4 positions) of the fuel injectors in the main stream, and the inlet temperature are obtained. Experi- mental results show that both the volume concentrations of unburnt hydrocarbon (UHC) and NOx (NO, NO2 usually grouped together as NOx) increase with the increase of total excess air ratio from 1.5 to 3.0; the emission performance relies heavily on the position of the main stream injector, and the best performance is achieved at Position 4 in the experiments; the increase of the inlet temperature impacts on the emission performance positively; the smallest volume concentrations of UHC and NOx obtained in the experiment are 94×10 6 and 2.3×10 6 respectively. This paper validates the feasibility of low emissions for an LPP/TVC and provides a reference for further optimization of TVCs. | JIN Yi HE Xiaomin ZHANG Jingyu JIANG Bo WU Zejun | 2012 | Chinese Journal of Aeronautics2012，25，3： | 17 |
| 2 | Effect of dilution holes on the performance of a triple swirler combustor显示文摘A triple swirler combustor is considered to be a promising solution for future high temperature rise combustors. The present paper aims to study dilution holes including primary dilution holes and secondary dilution holes on the performance of a triple swirler combustor. Experimental investigations are conducted at different inlet airflow velocities(40–70 m/s) and combustor overall fuel–air ratio with fixed inlet airflow temperature(473 K) and atmospheric pressure. The experimental results show that the ignition is very difficult with specific performance of high ignition fuel–air ratio when the primary dilution holes are located 0.6H(where H is the liner dome height)downstream the dome, while the other four cases have almost the same ignition performance. The position of primary dilution holes has an effect on lean blowout stability and has a large influence on combustion efficiency. The combustion efficiency is the highest when the primary dilution holes are placed 0.9H downstream the dome among the five different locations.For the secondary dilution holes, the pattern factor of Design A is better than that of Design B. | Ding Guoyu He Xiaomin Zhao Ziqiang An Bokun Song Yaoyu Zhu Yixiao | 2014 | Chinese Journal of Aeronautics2014，27，6： | 13 |
| 3 | Spatio-temporal variation of photosynthetically active radiation in China in recent 50 years显示文摘在中国上基于 weather/ecological 车站的长期的测量数据,计算并且生产每年平均、平均 seasonally 的光合地活跃的放射(同等) 的这份报纸从 1961 ~ 2007 的空间数据,用 climatological 计算和 spatialization 技术。在中国在上的每年平均、平均 seasonally 的同等空间数据的时间空间的变化特征最近 50 年与 Mann-Kendall 趋势分析方法和 GIS 被分析空间分析技术。结果显示出那:(1 ) 总体上,同等的空间分发越过中国复杂、不同类,与在中国的东方、南部的部分的更低的同等和在西方的部分的更高的同等。在中国上的吝啬的年度同等从 17.7 摩尔 m ? 2 d ? 1 ~ 39.5 摩尔 m ? 2 d ? 1。(2 ) 在中国上的每个象素的每年平均、平均 seasonally 的同等总体上被平均,平均数与变动进程显然珍视衰落,并且每年平均的同等的变化的率是 ? 0.138 摩尔 m ? 2 d ? 1/10a。在四个季节之中的变化振幅是不同的,与在里面的最大的落下夏天,和同等的下降速度在 1990 年代,速度在以后慢下来前是更快的。(3 ) 由每个象素的分析证明那同等显著地衰退(=0.05 ) 在中国的大多数部分。夏天和冬季在同等的 interannual 可变性起更重要的作用。诺思中国总是是在四个季节的一个减少的地区,当 Qinghai 西藏高原的西北转弯是在四个季节的一个增加的地区时。(4 ) 同等的 interannual 可变性的空间分布在不同时期之中变化。在某个区域的同等的 interannual 可变性不仅在四个季节之中,而且在不同时期之中是不同的。 | ZHU Xudong HE Honglin LIU Min YU Guirui SUN Xiaomin GAO Yanhua | 2010 | Journal of Geographical Sciences2010，20，6： | 12 |
| 4 | Thermal expansion of kyanite at ambient pressure:An X-ray powder diffraction study up to 1000℃显示文摘The thermal expansion coefficients of kyanite at ambient pressure have been investigated by an X-ray powder diffraction technique with temperatures up to 1000℃.No phase transition was observed in the experimental temperature range.Data for the unit-cell parameters and temperatures were fitted empirically resulting in the following thermal expansion coefficients:α_a = 5.8(3)×10^(-5).α_b = 5.8 (1)×10^(-5),α_c = 5.2(1)×10^(-5),andα_V = 7.4(1)×10^(-3)℃^(-1),in good agreement with a recent neutron powder diffraction study.On the other hand,the variation of the unit-cell anglesα,βand y of kyanite with increase in temperature is very complicated,and the agreement among all studies is poor.The thermal expansion data at ambient pressure reported here and the compression data at ambient temperature from the literature suggest that,for the kyanite lattice,the most and least thermally expandable directions correspond to the most and least compressible directions,respectively. | Xi Liu Qiang He Hejing Wang Michael E. Fleet Xiaomin Hu | 2010 | Geoscience Frontiers2010，1，1： | 11 |
| 5 | Design and Performance of an Improved Trapped Vortex Combustor显示文摘A trapped vortex combustor (TVC) has been a very promising novel concept for it offers improvements in lean blow out, altitude relight, operating range, as well as a potential to decrease NOx emissions compared to conventional combustors. The present paper discusses the improved designs of the new combustor over the prior ones of our research group, including that:a) the over-all dimensions, both axial and radial, are reduced to those of an actual aero-engine combustor; b) the air flow distribution is optimized, and especially 15% of the air is fed into the liner as cooling air; c) a straight-wall diffuser with divergence angle 9°is added. A series of experiments (cavity-fueled only, under atmospheric pressure) has been conducted to investigate the performance of the improved TVC. Experimental results show that at the inlet temperature of 523 K, the inlet pressure of 0.1 MPa, stable operation of the TVC test rig is observed for the Mach number 0.15-0.34, indicating good flame stability; the combustion efficiency obtained in this paper falls into the range of 60%-96%; as the total excess air ratio increases, the combustion efficiency decreases, while the increase of the inlet temperature is beneficial to high combustion efficiency; besides, the optimal Mach numbers for high combustion efficiency under different inlet conditions are confirmed. The outlet temperature profiles feature a bottom in the midheight of the exit. This paper demonstrates the feasibility for the TVC to be applied to a realistic aero-engine preliminarily and provides reference for TVC design. | JIN Yi HE Xiaomin JIANG Bo WU Zejun DING Guoyu | 2012 | Chinese Journal of Aeronautics2012，25，6： | 8 |
| 6 | RNA-binding protein LIN28B inhibits apoptosis through regulation of the AKT2/FOXO3A/BIM axis in ovarian cancer cells显示文摘LIN28B is an evolutionarily conserved RNA-binding protein that regulates mRNA translation and miRNA let-7 maturation in embryonic stem cells and developing tissues.Increasing evidence demonstrates that LIN28B is activated in cancer and serves as a critical oncogene.However,the underlying molecular mechanisms of LIN28B function in tumorigenesis are still largely unknown.Here we report that LIN28B was expressed in over half of the patients with epithelial ovarian cancer who were examined(n=584).Functional experiments demonstrated that LIN28B inhibited ovarian cancer cell apoptosis.Furthermore,we showed that the proapoptotic factor BIM played an essential role in the antiapoptotic function of LIN28B.RNA-IP microarray analysis suggested that LIN28B binds to mRNAs that are associated with the DNA damage pathway,such as AKT2,in ovarian cancer cells.By binding to AKT2 mRNA and enhancing its protein expression,LIN28B regulated FOXO3A protein phosphorylation and decreased the transcriptional level of BIM,which antagonized the antiapoptosis activity of LIN28B.Taken together,these results mechanistically linked LIN28B and the AKT2/FOXO3A/BIM axis to the apoptosis pathway.The findings may have important implications in the diagnosis and therapeutics of ovarian cancer. | Xiaojuan Lin Jianfeng Shen Dan Peng Xinhong He Congjian Xu Xiaojun Chen Janos LTanyi Kathleen Montone Yi Fan Qihong Huang Lin Zhang Xiaomin Zhong | 2018 | Signal Transduction and Targeted Therapy2018，3，1： | 8 |
| 7 | Comparison of the short-term and long-term outcomes of laparoscopic hysterectomies and of abdominal hysterectomies: a case study of 4,895 patients in the Guangxi Zhuang Autonomous Region, China显示文摘Background: To evaluate the short-term and long-term outcomes after laparoscopic hysterectomy(LH) compared with abdominal hysterectomy(AH) in case of benign gynecological disease. Methods: A multi-center cohort retrospective comparative study of population among 4,895 hysterectomies(3,539 LH vs.1,356 AH) between 2007 and 2013 was involved. Operative time(OT), estimated blood loss(EBL), intra-operative and post-operative complications, passing flatus; days with indwelling catheter, questionnaires covering pelvic floor functions and sexual functions were assessed.Results: The EBL(174.1±157.4 vs. 263.1±183.2 cc, LH and AH groups, respectively), passing flatus(38.7±14.1 vs. 48.1±13.2 hours), days with indwelling catheter(1.5±0.6 vs. 2.2±0.8 days), use of analgesics(6.5% vs. 73.1%), intra-operative complication rate(2.4% vs. 4.1%), post-operative complication rate(2.3% vs. 5.7%), post-operative constipation(12.1% vs. 24.6%), mild and serious stress urinary incontinence(SUI) post-operative(P<0.001; P=0.014), and proportion of Female Sexual Functioning Index(FSFI) total score <26.55 post-operative(P<0.001) of the LH group were significantly less than those of AH group. There wereno significant differences in OT(106.5±34.5 vs. 106.2±40.3 min) between the two groups.Conclusions: LH is a safe and efficient operation for improving patients' long-term quality of life(Qo L), and LH is a cost-effectiveness procedure for treating benign gynecological disease. LH is superior to AH due to reduced EBL, reduced post-operative pain and earlier passing flatus. | Hongying He Zhijun Yang Dingyuan Zeng Jiangtao Fan Xiaoxia Hu Yuan Ye Hua Bai YanmingJiang Zhong Lin Zhiying Lei Xinlin Li Lian Li Jinghua Gan Ying Lan Xiongzhi Tang Danxia Wang Junsong Jiang Xiaoyan Wu Meiying Li Xiaoqing Ren Xiaomin Yang Mei Liu Qinmei Wang Fuyan jiang Li Li | 2016 | Chinese Journal of Cancer Research2016，28，2： | 6 |
| 8 | Climatic suitability and spatial distribution for summer maize cultivation in China at 1.5 and 2.0 °C global warming显示文摘Evaluating climatic suitability of crop cultivation lays a foundation for agriculture coping with climate change scientifically. Herein, we analyse changes in the climatically suitable distribution of summer maize cultivation in China at 1.5℃(GW1.5) and 2.0℃(GW2.0) global warming in the future according to the temperature control targets set by the Paris Agreement. Compared with the reference period (1971- 2000), the summer maize cultivation climatically suitable region (CSR) in China mainly shifts eastwards, and its acreage significantly decreases at both GW1.5 and GW2.0. Despite no dramatic changes in the CSR spatial pattern, there are considerable decreases in the acreages of optimum and suitable regions (the core of the main producing region), indicating that half-a-degree more global warming is unfavourable for summer maize production in China's main producing region. When the global warming threshold increases from GW1.5 to GW2.0, the centres-of-gravity of optimum areas shift northeastward under RCP4.5 and RCP8.5, the centres-of-gravity of both suitable and less suitable areas shift northwestward, though the northward trend is more prominent for the less suitable areas, and the centre-of-gravity of unsuitable areas shifts southeastward. Generally, half-a-degree more global warming drives the cultivable areas of summer maize to shift northward in China, while the west region shows a certain potential for expansion of summer maize cultivation. | Qijin He Guangsheng Zhou Xiaomin Lü Mengzi Zhou | 2019 | Science Bulletin2019，64，10： | 4 |
| 9 | Electronic-property dependent interactions between tetracycline and graphene nanomaterials in aqueous solution显示文摘Understanding the interactions between graphene nanomaterials(GNMs) and antibiotics in aqueous solution is critical to both the engineering applications of GNMs and the assessment of their potential impact on the fate and transport of antibiotics in the aquatic environment. In this study, adsorption of one common antibiotic, tetracycline, by graphene oxide(GO) and reduced graphene oxide(RGO) was examined with multi-walled carbon nanotubes(MWCNTs) and graphite as comparison. The results showed that the tetracycline adsorption capacity by the four selected carbonaceous materials on the unit mass basis followed an order of GO > RGO > MWCNTs > graphite. Upon normalization by surface area,graphite, RGO and MWCNTs had almost the same high tetracycline adsorption affinity while GO exhibited the lowest. We proposed π-electron-property dependent interaction mechanisms to explain the observed different adsorption behaviors. Density functional theory(DFT) calculations suggested that the oxygen-containing functional groups on GO surface reduced its π-electron-donating ability, and thus decreased the π-based interactions between tetracycline and GO surface. Comparison of adsorption efficiency at different p H indicated that electrostatic interaction also played an important role in tetracycline-GO interactions. Site energy analysis confirmed a highly heterogeneous distribution of the binding sites and strong tetracycline binding affinity of GO surface. | Lin He Fei-fei Liu Mengyao Zhao Zhen Qi Xuefei Sun Muhammad Zaheer Afzal Xiaomin Sun Yanhui Li Jingcheng Hao Shuguang Wang | 2018 | Journal of Environmental Sciences2018，30，4： | 4 |
| 10 | A Case of New Variant COVID-19 First Emerging in South Africa Detected in a Security Guard at the Isolation Point—Shenzhen,China,January 23,2021显示文摘On January 22,2021,a 34-year-old male,who served as a security guard at the isolation point in Shenzhen,tested positive for coronavirus disease 2019(COVID-19)during the every-three-day routine test.After the nasopharyngeal swab was further confirmed as positive for COVID-19 by Shenzhen CDC,the patient was transferred to the Third People’s Hospital of Shenzhen and was diagnosed as a COVID-19 asymptomatic infection.On January 25,2021,Shenzhen CDC identified the 20H/501.Y.V2(B.1.351)variant,which was a variant of COVID-19 virus first emerging in the South Africa. | Jun Meng Shujiang Mei Long Chen Chunli Wu Shisong Fang Bo Peng Dongfeng Kong Xiaomin Zhang Linghong Xiong Yalan Huang Qiongcheng Chen Renli Zhang Yaqing He | 2021 | China CDC weekly2021，3，10： | 3 |
| 11 | PIF3 Is Involved in the Primary Root Growth Inhibition of Arabidopsis Induced by Nitric Oxide in the Light显示文摘PHYTOCHROME 交往 FACTOR3 (PIF3 ) 是在表明小径的 phytochrome 的一个重要部件并且调停植物 responsesto 各种各样的环境条件。我们发现 PIF3 涉及氮的氧化物导致的 Arabidopsis thaliana 幼苗的根生长的抑制(没有) 在光。PIF3 的 Overexpression 部分减轻了禁止的效果不在根生长上,而 pif3-1 异种显示了提高的敏感到不以根生长。在 phytochrome 发信号期间,光敏电阻器 PHYBmediates PIF3 的降级。我们发现 phyB-9 异种而且以应答有类似的显型到 PIF3ox 的到号码,没有处理支持了 PHYB 的累积,并且因此进一步减少了 PIF3 content.Our 结果证明 PIF3 的活动被 DELLA 蛋白质 RGL3 调整[象 3 一样的 RGA ( ga1-3 的抑压者)]。因此,我们推测那 PIF3 PHYB 和 RGL3 下游地躺,并且在禁止的效果起一个重要作用不在在 light.Key 词的 Arabidopsis 幼苗的根生长上: | Sulan Bai Tao Yao Miaomiao Li Xiaomin Guo Yaochuan Zhang Shengwei Zhu Yikun He | 2014 | Molecular Plant2014，7，4： | 3 |
| 12 | Hybrid photoanode films based on sparse ZnO rod array-TiO_2 nanoparticles in dye-sensitized solar cells显示文摘ZnO-TiO2 hybrid photoanodes were fabricated via the doctor-blade method by integrating vertically-grown sparse ZnO arrays with hydrothermal TiO2 nanoparticles. A special surface-coating technique was developed to deposit a thin TiO2 layer on the surface of ZnO rods. Microstructure, optical and photoelectrochemical performance of the hybrid photoanodes were investigated. The denser ZnO array exhibited bad filling behavior of nanoparticles in the interspace of ZnO rods, strong scattering and low conversion efficiency (0.27%). The sparser array showed a much better integrated microstructure, improved transmittance and high conversion efficiency (2.68%). The surface modification of ZnO rods by the TiO2 thin layer was found useful in improving the interfacial microstructure between the ZnO rod and the TiO2 bulk film, and the total conversion efficiency of 3.01% was achieved, higher than that of the pure TiO2 nanoparticle cell (2.93%). The increased scattering effects on the incident light, the enhanced electron transportation at TiO2/dye/electrolyte interface, and the inhabited recombination were responsible for this improvement. | WANG CaiLu GAO XiangDong LI XiaoMin JIANG ZhengWu YANG ZhengHong GU ZhengYing HE Peng | 2012 | Science China(Physics,Mechanics & Astronomy)2012，55，7： | 2 |
| 13 | Four COVID-19 Cases of New Variant B.1.351 First Emerging in South Africa in Chinese Passengers on Same Flight-Shenzhen,China,January 2021显示文摘At 04∶50 on January 1,2021,a 36-year-old Chinese project manager(Case A),a 29-year-old Chinese worker(Case B),and a 53-year-old Chinese businessman(Case C)returned from Africa(Case A and B from South Africa and Case C from Lesotho)on the same flight and tested coronavirus disease 2019(COVID-19)RNA positive by real-time polymerase chain reaction(PCR)by Baoan District People’s Hospital.Shenzhen CDC received their oral nasopharyngeal swabs packages from the hospital and retested COVID-19 RNA positive at 09∶50.Meanwhile,Case D. | Cong Cheng Lei Wang Ziquan Lyu Bo Peng Yinghui Li Dongfeng Kong Le Zuo Xiaomin Zhang Chao Yang Weiwen Liu Jia Wan Yijun Tang Junjia He Ying Wen Shule Xu Weihua Wu Ying Chen Guangnan Liu Junjie Xia Xuan Zou Renli Zhang Qinghua Hu Shujiang Mei Tiejian Feng | 2021 | China CDC weekly2021，3，8： | 2 |
| 14 | Novel composite of Co/carbon nanotubes: Synthesis, magnetism and microwave absorption properties显示文摘 | Zhong Zheng Bo Xu Lu Huang Li He Xiaomin Ni | 2007 | Solid State Sciences2007，，3： | 2 |
| 15 | Flow field characteristics,mixing and emissions performance of a lab-scale rich-quench-lean trapped-vortex combustor utilizing a quench orifice plate combined with a bluff-body显示文摘In this study,the low emission combustion technology of Rich-Quench-Lean(RQL)has been applied in Trapped-Vortex Combustor(TVC),and the combinative RQL-TVC shows a promising low emissions performance.By utilizing a quench orifice plate combined with a bluffbody,a lab-scale RQL-TVC was designed.The flow fields of RQL-TVC were measured by 2-D PIV and predicted by 3-D numerical simulation.Flow structures,radial profiles of normalized mean axial velocity,turbulence intensity and mixing level of the quench zone were analyzed.Results reveal that the dual-vortex and the single-vortex flow patterns both exist in cavities and quench zone of RQL-TVC,and the turbulence intensity is strong in the quench zone with some reverse flows.The spiral vortex was discussed by 3-D streamlines and the detail flow structures of the quench zone were analyzed based on the numerical results.The mixing level of the quench zone was determined,and results show that the quench device enhances the mixing level compared with TVC.Combustion efficiency and emissions performance were investigated experimentally,and results demon-strate that RQL-TVC has relatively higher combustion efficiency and lower emission index of CO,UHC and NO_xthan the same size lab-scale TVC in present work. | Bo JIANG Gaowei CUI Yi JIN Ziqiang ZHAO Dong LIU Xiaomin HE | 2021 | Chinese Journal of Aeronautics2021，34，4： | 1 |
| 16 | TaASR1 , a transcription factor gene in wheat, confers drought stress tolerance in transgenic tobacco显示文摘 | WEI HU CHAO HUANG XIAOMIN DENG SHIYI ZHOU LIHONG CHEN YIN LI CHENG WANG ZHANBING MA QIANQIAN YUAN YAN WANG RUI CAI XIAOYU LIANG GUANGXIAO YANG GUANGYUAN HE | 2013 | Plant Cell Environ2013，，8： | 1 |
| 17 | Arsenic Trioxide Increases the Sensitivity of 786–0 Renal Carcinoma Cells to Radiotherapy显示文摘 | Yu Su XiaoMin Wang WanHai Xu Li Xue ChunBo He DeJun Yang RuiHua An | 2012 | Cancer Investigation2012，，2： | 1 |
| 18 | Rolling-horizon scheduling for energy constrained distributed real-time embedded systems显示文摘 | Chuan He Xiaomin Zhu Hui Guo Dishan Qiu Jianqing Jiang | 2011 | The Journal of Systems & Software2011，，： | 1 |
| 19 | Atomic structure and chemistry of human serum albumin 显示文摘 | HE XIAOMIN CARTER D C | 1992 | Nature1992，358，16： | 1 |
| 20 | Model study of the upper circulation in the Sulu Sea and its relation to the South China Sea circulation显示文摘According to the satellite remote sensing monthly mean sea surface temperature data from 1998 to 2002, it is shown that, the Sulu Sea is dominated by a cold eddy both in summer and winter. A coupled single-layer/two-layer model is employed here to study the summery and wintry characteristics and dynamic mechanism of the upper circulation in the Sulu Sea. According to the numerical experiments, it is found that, due to the local monsoon stress curl, the upper circulation in the Sulu Sea is dominated by a weak anticyclonic eddy in summer and a strong cyclonic eddy in winter. Once there is a large outflow via the Sibutu Passage flowing out of the Sulu Sea in summer, the upper circulation in the Sulu Sea may be dominated by a cyclonic eddy instead of the normal anticyclonic one. Moreover, in summer, the water exchange between the Sulu Sea and South China Sea via the Mindoro and Balabac Straits might have some effect on the separation position and strength of the northward western boundary current next to the Indo-China Peninsula in the southern South China Sea. | CAI Shuqun HE Yinghui LONG Xiaomin WANG Shengan | 2008 | Acta Oceanologica Sinica2008，27，z1： | 1 |
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