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| 1 | Velocity and pressure distributions in discharge tunnel of rotary-obstruction composite inner energy dissipation显示文摘On the basis of model test and theoretical analysis of velocity and pressure distributions,an hypothesis is presented that the distribution of tangential velocity in radial direction seems to be a combinational distribution of a quasi-free vortex and a quasi-forced vortex for the discharge tunnel of rotary-obstruction composite inner energy dissipation.The variations of corresponding parameters about the hypothesis are obtained under test conditions in this paper.The formula of pressure distribution in radial direction is deduced theoretically,and the theoretical values of pressure distribution computed by the formula are well consistent with the measured ones,showing that the formula is correct and can be applied to the computation and analysis of pressure distribution of this discharge tunnel. | CAO ShuangLi 1,NIU ZhengMing 1,YANG Jian 2 & LU HongBo 1 1 Xi’an University of Technology,Xi’an 710048,China 2 China Water Resources Pearl River Planning,Surveying & Designing Co.Ltd,Guangzhou 510610,China | 2011 | Science China(Technological Sciences)2011，54，S1： | 10 |
| 2 | Polymer assisted deposition of high-quality CsPbI2Br film with enhanced film thickness and stability显示文摘Inorganic halide perovskites such as cesium lead iodide(CsPbI3)have drawn tremendous attention,as their tunable band gaps are desirable for solar cells as well as light emitting diodes.However,due to their low Goldschmidt tolerance factor,the cubic phase of bulk CsPbX3-the variant with desirable band gap-is not stable in ambient,especially in humid air.Besides,the low solubility of CsX in precursor makes it difficult to control the film thickness and morphology of CsPbX3,which becomes another obstacle for the practical application of inorganic perovskite.Here,we report a polymer assisted deposition of high-quality CsPbI2Br film by spin-coating a polymer-blended CsPbI2Br precursor.The long-chained polymer increases the viscosity of the solution,which enables us to achieve a ca.700-nm thick film with a low solution concentration of CsPbI2Br.Moreover,the polymer network helps to regulate the crystallization process and provides more crystallization sites for perovskite film,reducing grain size and thus improving the film coverage.Perovskite solar cells with the polymer network exhibit improved efficiency and reproducibility(0.72%standard deviation).Moreover,the device demonstrates excellent robustness against moisture and oxygen,and maintains 90%of its initial power conversion efficiency(PCEs)after aging 4 months in ambient conditions.The conception of polymer incorporation into inorganic perovskite films paves a way to further increase the performance,stability and reproducibility of inorganic perovskite devices. | Jing Wei Xi Wang Xiangyu Sun Zhaofeng Yang Iwan Moreels Kun Xu Hongbo Li | 2020 | Nano Research2020，13，3： | 6 |
| 3 | Palaeoenvironmental implication of the Plio-Pleistocene loess deposits in southern Tarim Basin显示文摘The sedimentary characteristics, grain-size distribution, geochemical composition and surface characteristics of quartz grains, together with palaeoenvironmental reconnaissance, all point to an aeolian origin for the intercalated siltstone beds in the Plio-Pleistocene Artux and Xiyu Formations along the southern margins of the Tarim Basin, indicating that loess deposition in the region started, at least, in the Early Pliocene. Loess deposition in the southern Tarim Basin was a response to the global deterioration, which might be attributed to the uplift of the Tibetan Plateau. | ZHENG Hongbo, CHEN Huizhong & CAO JunjiLaboratory of Marine Geology, Tongji University, Shanghai 200092, China Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710054, China Institute of Environment and Engineering of Cold and Arid Regio | 2002 | Chinese Science Bulletin2002，47，8： | 6 |
| 4 | Dynamic control on grain-size distribution of terrigenous sediments in the western South China Sea:Implication for East Asian monsoon evolution显示文摘High-resolution oxygen isotope stratigraphy of Core MD05-2901, which is located off eastern Vietnam in the western South China Sea (SCS), was established and indicated that the core spans a time period of the past 450 ka. Based on the bulk density, fractional porosity and lithogenic content of the sedi-ments, terrigenous mass accumulation rate (TMAR) was obtained, which is 4.9―6.0 g cm?2 ka?1 on average during interglacial stages, higher than that during glacial stages, i.e. 1.9―5.0 g cm-2 ka-1, which is different from northern and southern SCS which show higher TMAR in glacial stages. By principle component analysis of grain size distribution of all the samples, two main control factors (F1 and F2) were obtained, which are responsible for about 80% variance of granularity. The contents of grain size population 1.26―2.66 μm% and 10.8―14.3 μm% which are sensible to F1 show high-frequency fluctuation, and correlate well with the summer insolation at 15oN. They exhibit a dis-tinct cyclicity with frequencies near 23 ka and 13 ka, in contrast to a strong frequency peak near 100 ka obtained in proxies 4.24―7.42 μm% and 30.1―43.7 μm% controlled mainly by F2. The sedimentary character of this part of the SCS was controlled by variations of input flux from two main source areas, namely the southwest and north SCS, which were transported by different circulations of surface current forced by East Asian summer monsoon and winter monsoon respectively. We believe that the East Asian summer monsoon has fluctuated with high frequency and been forced by changes in solar in-solation in low latitude associated with precession and half precession, while ice-volume forcing is probably a primary factor in determining the strength and timing of the East Asian winter monsoon but with less important insolation forcing. | CHEN GuoCheng ZHENG HongBo LI JianRu XIE Xin MEI Xi | 2008 | Chinese Science Bulletin2008，53，10： | 5 |
| 5 | Effect of nitriding-sulfurizing composite treatment on the tribological behavior of titanium alloys显示文摘A composite layer was prepared on the surface of Ti-6Al-4V alloy by nitriding-sulfurizing composite treatment,and its microstructure and phase structure were examined by scanning electron microscopy(SEM) and X-ray diffraction(XRD),respectively.The tribological performance was measured to investigate its dependence on the nitriding-sulfurizing composite treatment process.The results indicated that the composite layer was mainly comprised of Ti2N,TiN,and TiS2.It was found that the composite layer exhibited superior tribological properties under dry friction and absolute sliding conditions due to the formation of sulfides with self-lubricating function. | WANG Lijie,XING Yazhe,WANG Hongbo,and HAO Jianmin School of Materials Science and Engineering,Chang’an University,Xi’an 710064,China | 2010 | Rare Metals2010，29，6： | 4 |
| 6 | The metabolic role of LncZBTB39-1:2 in the trophoblast mobility of preeclampsia显示文摘Preeclampsia is characterized by new onset of hypertension and proteinuria after 20 weeks’gestation and is a leading cause of maternal and neonatal morbidity and mortality.The pathogenesis of preeclampsia is often associated with aberrant trophoblast function that leads to shallow placental implantation.However,the exact underlying mechanisms remain unclear.Placental LncZBTB39-1:2 expression level was investigated in 20 healthy placentae and 20 placentae with preeclampsia using qRT-PCR,and the metabolic profile of trophoblasts overexpressing LncZBTB39-1:2 in vitro was analysed using gas chromatography-mass spectrometry(GCeMS).In this study,we found that the expression of LncZBTB39-1:2 was significantly higher in preeclamptic placentae than in healthy placentae.Our metabolomics results have shown that tricarboxylic acid cycle intermediates and metabolites related to carbohydrate metabolism were decreased with the overexpression of LncZBTB39-1:2 in HTR8/SVneo cells.These findings were validated by detecting a lower level of intracellular ATP in HTR8/Vneo cells.Furthermore,the migration of HTR8/SVneo cells was compromised when cells were transfected with a plasmid encompassing LncZBTB39-1:2 overexpression.From these results,we conclude that abnormal levels of LncZBTB39-1:2 expression might lead to aberrant conditions in HTR-8/SVneo trophoblast cells.Aberrant conditions might be associated with dysregulated trophoblast migration and subsequent failure of uterine spiral artery remodelling,a pathogenesis recognised as a contributing factor in the aetiology of preeclampsia. | Yamin Liu Ting-Li Han Xiaofang Luo Yuxiang Bai Xuehai Chen Wei Peng Xi Xiong Philip N.Baker Chao Tong Hongbo Qi | 2018 | Genes & Diseases2018，5，3： | 3 |
| 7 | Attitude Control of Rigid Body with Inertia Uncertainty and Saturation Input显示文摘In this paper, the attitude control problem of rigid body is addressed with considering inertia uncertainty,bounded time-varying disturbances, angular velocity-free measurement, and unknown non-symmetric saturation input. Using a mathematical transformation, the effects of bounded time-varying disturbances, uncertain inertia,and saturation input are combined as total disturbances. A novel finite-time observer is designed to estimate the unknown angular velocity and the total disturbances. For attitude control, an observer-based sliding-mode control protocol is proposed to force the system state convergence to the desired sliding-mode surface; the finite-time stability is guaranteed via Lyapunov theory analysis. Finally, a numerical simulation is presented to illustrate the effective performance of the proposed sliding-mode control protocol. | Xi Ma Fuchun Sun Hongbo Li Bing He | 2017 | Tsinghua Science and Technology2017，22，1： | 2 |
| 8 | Recognition of high-specificity hERG K+ channel inhibitor-induced arrhythmia in cardiomyocytes by automated template matching显示文摘Cardiovascular disease(CVD)is the number one cause of death in humans.Arrhythmia induced by gene mutations,heart disease,or hERG K+channel inhibitors is a serious CVD that can lead to sudden death or heart failure.Conventional cardiomyocyte-based biosensors can record extracellular potentials and mechanical beating signals.However,parameter extraction and examination by the naked eye are the traditional methods for analyzing arrhythmic beats,and it is difficult to achieve automated and efficient arrhythmic recognition with these methods.In this work,we developed a unique automated template matching(ATM)cardiomyocyte beating model to achieve arrhythmic recognition at the single beat level with an interdigitated electrode impedance detection system.The ATM model was established based on a rhythmic template with a data length that was dynamically adjusted to match the data length of the target beat by spline interpolation.The performance of the ATM model under long-term astemizole,droperidol,and sertindole treatment at different doses was determined.The results indicated that the ATM model based on a random rhythmic template of a signal segment obtained after astemizole treatment presented a higher recognition accuracy(100%for astemizole treatment and 99.14%for droperidol and sertindole treatment)than the ATM model based on arrhythmic multitemplates.We believe this highly specific ATM method based on a cardiomyocyte beating model has the potential to be used for arrhythmia screening in the fields of cardiology and pharmacology. | Hao Wang Hongbo Li Xinwei Wei Tao Zhang Yuting Xiang Jiaru Fang Peiran Wu Xi Xie Ping Wang Ning Hu | 2021 | Microsystems & Nanoengineering2021，7，2： | 2 |
| 9 | Variation in contact load at the most loaded position of the outer raceway of a bearing in high-speed train gearbox显示文摘For the fatigue failure and tribological property of a rolling element bearing,the contact load variation plays a significant role while the most loaded position of the bearing outer raceway takes the greatest risk of failure.This paper focuses on the variation in contact load on the most loaded position of the outer raceway of a gearbox bearing in high-speed train.Under operation conditions of different input speeds and torques,the dynamic contact load distribution in a gearbox bearing of high-speed train was measured by instrumenting the bearing with strain gauges.The most loaded position was identified accordingly and the features and reasons of the variation in contact load on this position were suggested.Three factors were found to have varying degrees of impact on the contact load variation under different gear meshing conditions:modal vibration of the cage or shaft,radial geometrical differences among the rollers and vibration of the gearbox housing. | Yu Hou Xi Wang Hongbo Que Rubing Guo Xinhai Lin Siqin Jin Chengpan Wu Yue Zhou Xiaolong Liu | 2021 | Acta Mechanica Sinica2021，37，11： | 2 |
| 10 | Reduction of wastewater toxicity and change of microbial community in a hydrolysis acidification reactor pre-treating trimethylolpropane wastewater显示文摘Trimethylolpropane (TMP)wastewater is one of the most toxic petrochemical wastewater.Toxicants with high concentrations in TMP wastewater often inhibit the activity of microorganisms associated with biological treatment processes.The hydrolysis acidification process (HAP)is widely used to pretreat petrochemical wastewater.However,the effects of HAP on the reduction of wastewater toxicity and the relevant underlying mechanisms have rarely been reported.In this study,an HAP reactor was operated for 240 days.fed with actual TMP wastewater diluted by tap water in varying ratios.The toxicity of TMP wastewater was assessed with the inhibition ratio of oxygen uptake rate.When the organic loading rates were lower than 7.5kg COD/m^3/d,the toxicity of TMP wastewater was completely elminated.When the actual TMP wastewater was directly fed into the reactor,the toxicity of TMP wastewater decreased from 100%to 34.9%.According to the results of gas chromatography-mass spectrometry analysis,four main toxicants contained in TMP wastewater,namely,formaldehyde, 2-ethylacrolein.TMP and 2-ethylhexanol.were all significantly removed,with removal efficiencies of 93.42%,95.42%,72.85%and 98.94%,respectively.Compared with the removal efficiency of CODcr, the reduction rate of toxicity is markedly higher by HAP.In addition,the change of microbial community in the HAP reactor,along the operation period,was studied.The results revealed that, compared with the seed sludge.Firmicutes became the dominant phylum (abundance increased from 0.51% to 57.08%),followed by Proteobacteria and Bacteroidetes (abundance increased from 59.75% to 25.99%and from 4.70%to 8.39%,respectively). | Xin Xing Yin Yu Hongbo Xi Guangqing Song Yajiao Wang Jiane Zuo Yuexi Zhou | 2018 | Frontiers of Environmental Science & Engineering2018，12，6： | 2 |
| 11 | High Rate and Long Lifespan Sodium‑Organic Batteries Using Pseudocapacitive Porphyrin Complexes‑Based Cathode显示文摘Sodium-organic batteries utilizing natural abundance of sodium element and renewable active materials gain great attentions for grid-scale applications.However,the development is still limited by lack of suitable organic cathode materials with high electronic conductivity that can be operated stably in liquid electrolyte.Herein,we present 5,15-bis(ethynyl)-10,20-diphenylporphyrin(DEPP)and[5,15-bis(ethynyl)-10,20-diphenylporphinato]copper(II)(CuDEPP)as new cathodes for extremely stable sodium-organic batteries.The copper(II)ion partially contributes the charge storage and significantly stabilizes the structure of porphyrin complex for electrochemical energy storage.In situ electrochemical stabilization of organic cathode with a lower charging current density was identified which enables both improved high energy density and power density.An excellent longterm cycling stability up to 600 cycles and an extremely high power density of 28 kW kg−1 were achieved for porphyrin-based cathode.This observation would open new pathway for developing highly stable sodium-organic cathode for electrochemical energy storage. | Xi Chen Xin Feng Bo Ren Liangzhu Jiang Hongbo Shu Xiukang Yang Zhi Chen Xiujuan Sun Enhui Liu Ping Gao | 2021 | Nano-Micro Letters2021，13，5： | 1 |
| 12 | Measured load spectra of the bearing in high-speed train gearbox under different gear meshing conditions显示文摘The load spectrum is a crucial factor for assess-ing the fatigue reliability of in-service rolling element bear-ings in transmission systems.For a bearing in a high-speed train gearbox,a measurement technique based on strain detection of bearing outer ring was used to instrument the bearing and determine the time histories of the distributed load in the bearing under different gear meshing conditions.Accordingly,the load spectrum of the total radial load car-ried by the bearing was compiled.The mean value and class interval of the obtained load spectrum were found to vary non-monotonously with the speed and torque of gear mesh-ing,which was considered to be caused by the vibration of the shaft and the bearing cage.As the realistic service load input of bearing life assessment,the measured load spectrum under different gear meshing conditions can be used to pre-dict gearbox bearing life realistically based on the damage-equivalent principle and actual operating conditions. | Yu Hou Xi Wang Shouguang Sun Hongbo Que Rubing Guo Xinhai Lin Siqin Jin Chengpan Wu Yue Zhou Xiaolong Liu | 2023 | Railway Engineering Science2023，31，1： | 1 |
| 13 | Synthesis of wheat straw-g-poly (acrylic acid) superabsorbent composites and release of urea from it显示文摘 | Liang Rui Yuan Hongbo Xi Guoxi | 2009 | Carbohydrate Polymers2009，77，2： | 1 |
| 14 | Synthesis of wheat straw- g-poly( acrylic acid) superabsorbent composites and release of urea from it 显示文摘 | Liang Rui Yuan Hongbo Xi Guoxi | 2009 | Carbohydrate Polymers2009，77，2： | 1 |
| 15 | Effects of adding inert spheres into the filter bed on the performance of biofilters for gaseous toluene removal 显示文摘 | Xi Jinying Hu Hongying Zhu Hongbo | 2005 | Biochem Eng J2005，23，： | 1 |
| 16 | Epoxy resin nanosuspensions and reinforced nanocomposites from polyaniline stabilized multi-walled carbon nanotubes显示文摘 | Gu Hongbo Tadakamalla S Zhang Xi | 2013 | Journal of Materials Chemistry2013，，1： | 1 |
| 17 | 显示文摘 | Liang Rui Yuan Hongbo Xi Guoxi | 2009 | Carbohydrate Po- lymers2009，77，2： | 1 |
| 18 | Magnetoresistive polyaniline-magnetite nanocomposites with negative dieleetrical properties显示文摘 | Gu Hongbo Huang Yudong Zhang Xi | 2012 | Polymer2012，53，3： | 1 |
| 19 | Antibacterial Properties of PLA Nonwoven Medical Dressings Coated with Nanestructured Silver 显示文摘 | Wang Hongbo Wei Qufu Wang Xi | 2008 | Fibers and Polymers2008，9，55： | 1 |
| 20 | Magnetoresistive polyaniline-magnetite nanocomposites with negative dielectricalproperties显示文摘 | Gu Hongbo Huang Yudong Zhang Xi | 2012 | Polymer2012，53，3： | 1 |
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