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| 1 | Effect of carbon addition on the microstructure and mechanical properties of CoCrFeNi high entropy alloy显示文摘The effects of C element on the microstructure and properties of CoCrFeNiCx high entropy alloys(x denoted the atomic fraction of C element at 0, 0.05, 0.1, 0.2, 0.3, and 0.5) were investigated. The equal molar CoCrFeNi alloy with FCC structure exhibits high ductility but weak strength. With the addition of C element, both the hardness and strength of the CoCrFeNiCx high entropy alloys increase as well as the wear resistance. The solution strengthening and the formation of hard carbide phase are the main factor for the improved strength, hardness and wear resistance of CoCrFeNiCx high entropy alloys. | HUANG TianDang JIANG Li ZHANG ChangLiang JIANG Hui LU YiPing LI TingJu | 2018 | Science China(Technological Sciences)2018，61，1： | 22 |
| 2 | Insight into chemical basis of traditional Chinese medicine based on the state-of-the-art techniques of liquid chromatography-mass spectrometry显示文摘Traditional Chinese medicine(TCM) has been an indispensable source of drugs for curing various human diseases.However,the inherent chemical diversity and complexity of TCM restricted the safety and efficacy of its usage.Over the past few decades,the combination of liquid chromatography with mass spectrometry has contributed greatly to the TCM qualitative analysis.And novel approaches have been continuously introduced to improve the analytical performance,including both the data acquisition methods to generate a large and informative dataset,and the data post-processing tools to extract the structure-related MS information.Furthermore,the fast-developing computer techniques and big data analytics have markedly enriched the data processing tools,bringing benefits of high efficiency and accuracy.To provide an up-to-date review of the latest techniques on the TCM qualitative analysis,multiple data-independent acquisition methods and data-dependent acquisition methods(precursor ion list,dynamic exclusion,mass tag,precursor ion scan,neutral loss scan,and multiple reaction monitoring)and post-processing techniques(mass defect filtering,diagnostic ion filtering,neutral loss filtering,mass spectral trees similarity filter,molecular networking,statistical analysis,database matching,etc.) were summarized and categorized.Applications of each technique and integrated analytical strategies were highlighted,discussion and future perspectives were proposed as well. | Yang Yu Changliang Yao De-an Guo | 2021 | Acta Pharmaceutica Sinica B2021，11，6： | 21 |
| 3 | Hepatitis B virus X protein promotes liver cell proliferation via a positive cascade loop involving arachidonic acid metabolism and p-ERK1/2显示文摘肝炎 B 病毒 X 蛋白质(HBx ) 在 hepatocellular 癌的发展起一个关键作用。这里,我们寻求了识别 HBx 由调停的机制肝房间增长。我们发现那 HBx upregulated cyclooxygenase-2 (COX-2 ) 的层次, 5-lipoxygenase (5 哈鱼) 和 phosphorylated 在肝房间的细胞外的调整信号的蛋白质 kinases 1/2 (p-ERK1/2 ) 。导致 HBx 的 p-ERK1/2 被 Gi/o 蛋白质,艇长或哈鱼的抑制废除。另外, HBx 增加了前列腺素 E2 (PGE2 ) 的数量,免除房间线的 leukotriene B4 (LTB4 ) 源于 hepatocytes。而且,这些释放 arachidonic 酸代谢物能激活 ERK1/2。有趣地,激活 ERK1/2 能 upregulate 以一种积极反馈方式的 COX-2 和 5 哈鱼的表示。在结论, HBx 经由包含 COX-2, 5 哈鱼,释放 arachidonic 酸代谢物, Gi/o 蛋白质和 p-ERK1/2 的一个积极反馈环提高并且维持肝房间增长。 | Changliang Shan Fuqing Xu Shuai Zhang Jiacong YOU Xiaona You Liyan Qiu Jie Zheng Lihong Ye Xiaodong Zhang | 2010 | Cell Research2010，20，5： | 15 |
| 4 | Study on the Control of Tobacco Black Shank by Using Dry Mycelium of Penicillium Chrysogenum显示文摘 | Changliang Xu Rong Zeng Chunsheng Ruan Xiaoxia Wang Kaibao Xia George McBride Jianpeng Luo Suiyun Chen | 2010 | Journal of Life Sciences2010，4，1： | 12 |
| 5 | Robust adaptive cross-coupling position control of biaxial motion system显示文摘The stability and synchronous performance are usually hard to be improved simultaneously in the biaxial cross-coupling position motion control system.Based on analyzing the characteristics of the cross-coupling control system,a robust adaptive cross-coupling control strategy is proposed.To restrict influences of destabilizing factors and improve both of stability and synchronous performance,the strategy forces dual axes to track the same reference model using Narendra adaptive control theory.And then,a robust parameters adaptive law is proposed.The stability analysis of the proposed strategy is conducted by applying Lyapunov stability theory.Related simulations and experiments indicate that the proposed strategy can improve synchronous performance and stability simultaneously. | CHEN Wei WANG DianDian GENG Qiang XIA ChangLiang | 2016 | Science China(Technological Sciences)2016，59，4： | 12 |
| 6 | A novel orientation measurement using optical sensor for spherical motor显示文摘The measurement of spherical rotor orientation is crucial to the close-loop control of spherical motors. This paper presents a novel method for the measuring of three-degree-of-freedom (DOF) rotor orientation of spherical motors using optical sensors. The spatial orientation of spherical rotor is output in the form of ZXZ Euler angles. Firstly, the structure of the measuring system composed of optical sensors and the patterns on the rotor surface are presented, and the operational principle of recognizing intersection points between the optical ring detectors and the latitude/longitude on the rotor surface is illustrated. The analytical model of input-output characteristic is established for the measuring system of three-DOF rotor orientation. Afterwards, the effect of parameters of the optical ring detectors on the linearity, sensitivity, resolving power and measuring range of the measuring system is analyzed using the analytical model. Finally, the feasibility of the measurement is validated through experiments of prototype measuring system. The analysis is expected to be a basis for the design parameter optimization of the orientation measuring system of a PM spherical motor. | XIN JianGuo XIA ChangLiang LI HongFeng SHI TingNa | 2013 | Science China(Technological Sciences)2013，56，6： | 10 |
| 7 | Seasonal variations of stable isotope in precipitation and moisture transport at Yushu,eastern Tibetan Plateau显示文摘Precipitation δ 18O at Yushu, eastern Tibetan Plateau, shows strong fluctuation and lack of clear seasonality. The seasonal pattern of precipitation stable isotope at Yushu is apparently different from either that of the southwest monsoon region to the south or that of the inland region to the north. This different seasonal pattern probably reflects the shift of different moisture sources. In this paper, we present the spatial comparison of the seasonal patterns of precipitation δ 18O, and calculate the moisture transport flux by using the NCAR/NCEP reanalysis data. This allows us to discuss the relation between moisture transport flux and precipitation δ 18O. This study shows that both the southwest monsoon from south and inland air mass transport from north affected the seasonal precipitation δ 18O at Yushu, eastern Tibetan Plateau. Southwest monsoon brings the main part of the moisture, but southwest transport flux is weaker than in the southern part of the Tibetan Plateau. However, contribution of the inland moisture from north or local evaporation moisture is enhanced. The combined effect is the strong fluctuation of summer precipitation δ 18O at Yushu and comparatively poor seasonality. | TIAN LiDe MA LingLong YU WuSheng LIU ZhongFang YIN ChangLiang ZHAO ZhongPing TANG Wei WANG Yu | 2008 | Science China Earth Sciences2008，51，8： | 9 |
| 8 | Isotopic composition of atmospheric water vapor before and after the monsoon's end in the Nagqu River Basin显示文摘Atmospheric water vapor samples were col-lected in the Nagqu River Basin in the middle of Tibetan Plateau between August and October in 2004. Results show that there exist some fluctuations of the δ 18O of atmospheric water vapor, especially before and after the monsoon’s end. Moreover, the variety trend of the δ 18O of atmospheric water vapor inverse correlates with that of dew point. Precipitation events make an important effect upon the variation of δ 18O of atmospheric water vapor. During the whole sampling pe-riod, the δ 18O values of atmospheric water vapor are low while precipitation events occurred. The moisture origins also contribute to the variation of δ 18O of atmospheric water vapor. The oceanic moisture transported by the southwest monsoon results in lower δ18O of atmospheric water vapor in the Nagqu River Basin. Compared with the influence of the oceanic moisture, the δ 18O values, however, appear high re-sulting from the effect of the continental air mass in this re-gion. | YU Wusheng YAO Tandong TIAN Lide WANG Yu YIN Changliang | 2005 | Chinese Science Bulletin2005，50，23： | 7 |
| 9 | Temporal and spatial variations of δ^18O in precipitation of the Yarlung Zangbo River Basin显示文摘这份报纸在 2005 在四个车站(Lhaze, Nugesha, Yangcun 和 Nuxia ) 在降水基于未 1 8O 的变化在 Yarlung Zangbo 河盆的降水揭示稳定的同位素的时间、空间的变化。结果证明降水的未 1 8O 在 Yarlung Zangbo 河盆有不同季节的变化。未 1 8O 的更高的价值在季风降水以前在春天发生,并且更低的价值发生在季风降水期间。从空间变化,沿着 Yarlung Zangbo 河山谷在潮湿运输期间与高度效果和 rainout 处理,降水的 18O 逐渐地被弄空。因此,降水的未 1 8O 逐渐地减少从对下游在上游,并且在降水的未 1 8O 的差错率为二个原因是约 0.34 鈥 ? 100m 和 0.7 鈥 ? 100km。在季风降水期间,在降水的未 1 8O 的空间变化被数量效果在大规模统治摘要的状况。 | LIU Zhongfang TIAN Lide YAO Tandong GONG Tongliang YIN Changliang YU Wusheng | 2007 | Journal of Geographical Sciences2007，17，3： | 7 |
| 10 | Direct power control for three-level PWM rectifier based on hysteresis strategy显示文摘This paper presents a mathematical model of three-level voltage PWM rectifier,and derives a power control model from the theory of instantaneous power.In the vector-space,the influences on instantaneous power exercised by all the switching vectors are studied and illustrated separately,then a direct power control(DPC) scheme for three-level PWM rectifier which uses multistage band hysteresis comparator is proposed,and a novel switching table is designed.Meanwhile,the neutralpoint voltage unbalance is inhibited by selecting the redundancy switching states of small voltage vectors.Simulation and experimental results show that the proposed strategy can not only stabilize the DC bus voltage but also realize the unity power factor operation and the balance of neutral-point voltage.Moreover,the proposed method can improve the performance of the three-level rectifier. | SHI TingNa WANG Jian ZHANG Ce XIA ChangLiang | 2012 | Science China(Technological Sciences)2012，55，11： | 5 |
| 11 | Chitosan-mediated synthesis of mesoporous α-Fe_(2)O_(3)nanoparticles and their applications in catalyzing selective oxidation of cyclohexane显示文摘This paper reports the chitosan-mediated synthesis of porous hematite nanoparticles with FeCl3 as the precursor via a hydrothermal approach at 160℃.A series of porous chitosan/iron oxide hybrid nanoparticles were obtained via changing the ratio of chitosan to FeCl3,FeCl3 concentration and pH value of the reaction solution,and producing porous iron oxide nanoparticles after calcination.The as-prepared samples were characterized by means of X-ray diffraction,transmission electron microscopy,thermal gravimetric analysis,Fourier transform infrared,and N2 sorption.The particle sizes of these metal oxides were less than 100 nm,and the pore sizes were in the range of 2-16 nm.It was demonstrated that chitosan played a key role in the formation of the porous structures.The resultant α-Fe2O3 nanoparticles were used as the support to immobilize Au or Pd nanoparticles,producing Au/α-Fe2O3 or Pd/α-Fe2O3 nanoparticles.The as-prepared α-Fe2O3 nanocatalyst exhibited high selectivity towards cyclohexanone and cyclohexanol for catalyzing cyclohexane oxidation with O2 at 150℃. | HUANG ChangLiang ZHANG HongYe SUN ZhenYu LIU ZhiMin | 2010 | Science China Chemistry2010，53，7： | 4 |
| 12 | Sensorless Control of BLDC Motors Based on Variation Behavior of Winding Inductances显示文摘 | SHI Tingna WU Zhiyong ZHANG Qian CHEN Wei XIA Changliang | 2012 | 中国电机工程学报2012，32，27： | 4 |
| 13 | Microstructures and high-temperature self-lubricating wearresistance mechanisms of graphene-modified WC–12Co coatings显示文摘To reduce the friction coefficient of cobalt-cemented tungsten carbide(WC–12Co)wear-resistant coatings,graphene was compounded into WC–12Co powder via wet ball milling and spray granulation.Selflubricating and wear-resistant graphene coatings were prepared via detonation gun spraying.The presence,morphologies,and phase compositions of graphene in the powders and coatings that are obtained through different powder preparation processes were analyzed.The analysis was performed using the following technologies:energy-dispersive X-ray-spectroscopy(EDXS),scanning electron microscopy(SEM),transmission electron microscopy(TEM),and Raman spectroscopy.The mechanical properties of the coatings were studied using a microhardness tester and a universal drawing machine.The friction and wear properties of the coatings were studied using an SRV-4 friction and wear tester.The results showed that the graphene content in the WC–12Co coating modified with graphene was higher than that without modification;graphene was embedded in the structure in a transparent and thin-layer state.The adhesive strength of this coating at approximately 25°C was approximately 60.33 MPa,and the hardness was approximately 984 HV0.3.After high-temperature treatment,the adhesive strength and hardness of the graphene oxide(GO)/WC–12Co coating decreased slightly(the lowest adhesive strength of 53.16 MPa was observed after treatment at 400°C,and the lowest hardness of approximately 837 HV0.3 was observed after treatment at 300°C).Compared to the friction coefficient(0.6)of the WC–12Co coating obtained at room temperature,the friction coefficient of the GO/WC–12Co coating was decreased by approximately 50%of that value.The graphene-modified coating was continuously exposed to the wear tracks on the surface of the contacting materials during friction,and a lubricating film was formed in the microareas in which the wear tracks were present.The coating exhibited improved self-lubricating and wear-resistant effects compared to the unmodified WC–12Co coating.The results of this study demonstrated that graphene could be effective in self-lubrication and wear-reduction in a temperature range of 100–200°C,as a friction coefficient of 0.3 was maintained. | Haoliang TIAN Changliang WANG Mengqiu GUO Yongjing CUI Junguo GAO Zhihui TANG | 2021 | Friction2021，9，2： | 4 |
| 14 | Modeling of suspended sediment transport with wave-induced longshore current in Huanghe (Yellow) River Delta显示文摘A three-dimensional suspended sediment model (SED) developed by the present authors is coupled with the combinatorial model of COHERENS (Luyten et al., 1999) (the three-dimensional coupled hydrodynamical-ecological model for Regional and Shelf Seas) and SWAN (Holthuijsen et al., 2004) (the third generation wave model). SWAN is regarded as a subroutine of COHERENS and gets time- and space-varying current velocity and surface elevation from COHERENS. COHERENS gets time- and space- varying wave relevant parameters provided by SWAN. Effects of wave on current are applied in bottom shear stress, wave-induced depth-dependent radiation stress and surface drag coeffcient calculation. At the same time, the damping function of suspended sediment on turbulence is introduced into COHERENS. So the sediment model SED has feedback on circulation model COHERENS. The SED obtains current associated parameters from COHERENS. Then a coupled hydrodynamic-sediment model COHERENS-SED being able to account for interaction between wave and current is obtained. COHERENS-SED is adopted to simulate three-dimensional suspended sediment transport in the Huanghe River delta. In terms of simulation results, there is obvious difference between top and bottom layer of wave-induced longshore current. The val- ues of time series of sediment concentration gotten by COHERENS-SED have, generally, an ac- cepted agreement extent with measurement. Significant wave heights and wave periods obtained by COHERENS-SED show that wave simulation case with current s effect can give better agreement extent with measurement than case without current s effect. In the meantime, suspended sediment concentration distributing rule obtained by COHERENS-SED is similar to former researches and measurement. | LI Changliang LIANG Bingchen ZHANG Jing | 2009 | Acta Oceanologica Sinica2009，28，3： | 4 |
| 15 | Sciatic nerve regeneration using a nerve growth factor-containing fibrin glue membrane显示文摘Our previous findings confirmed that the nerve growth factor-containing fibrin glue membrane provides a good microenvironment for peripheral nerve regeneration;however,the precise mechanism remains unclear.p75 neurotrophin receptor(p75NTR)plays an important role in the regulation of peripheral nerve regeneration.We hypothesized that a nerve growth factor-containing fibrin glue membrane can promote neural regeneration by up-regulating p75NTRexpression.In this study,we used a silicon nerve conduit to bridge a 15 mm-long sciatic nerve defect and injected a mixture of nerve growth factor and fibrin glue at the anastomotic site of the nerve conduit and the sciatic nerve.Through RT-PCR and western blot analysis,nerve growth factor-containing fibrin glue membrane significantly increased p75NTRmRNA and protein expression in the Schwann cells at the anastomotic site,in particular at 8 weeks after injection of the nerve growth factor/fibrin glue mixture.These results indicate that nerve growth factor-containing fibrin glue membrane can promote peripheral nerve regeneration by up-regulating p75NTRexpression in Schwann cells. | Shengzhong Ma Changliang Peng Shiqing Wu Dongjin Wu Chunzheng Gao | 2013 | Neural Regeneration Research2013，8，36： | 4 |
| 16 | Throughput Gain of Random Wireless Networks with Physical-Layer Network Coding显示文摘This study analyzes the impact of Physical-layer Network Coding (PNC) on the throughput of a large random wireless network,including one-dimensional and two-dimensional networks.Three different transmission schemes,(1) a traditional flow-based scheme,(2) a network coding scheme,and (3) the PNC scheme are compared to show that the PNC scheme improves wireless network throughput by a constant factor without changing the scaling law compared to the traditional flow-based and network coding schemes.Furthermore,PNC can reduce the effect of interference for the one-dimensional networks,and has a tighter throughput bound for the two-dimensional network. | Xican Yang Jian Li Changliang Xie Li Li | 2012 | Tsinghua Science and Technology2012，17，2： | 3 |
| 17 | Extremal Functions of the Singular Moser-Trudinger Inequality Involving the Eigenvalue显示文摘 | ZHOU Changliang ZHOU Chunqin | 2018 | Journal of Partial Differential Equations2018，31，1： | 3 |
| 18 | Spatial variation of net radiation and its contribution to energy balance closures in grassland ecosystems显示文摘Introduction:Low energy balance closure(EBC)at a particular eddy-covariance flux site has increased the uncertainties of carbon,water,and energy measurements and has thus hampered the urgent research of scaling up and modeling analyses through site combinations in regional or global flux networks.Methods:A series of manipulative experiments were conducted in this study to explore the role of net radiation(Rn)in the EBC in relation to spatial variability of vegetation characteristics,source area,and sensor type in three sites of the Inner Mongolian grassland of northern China.Results:At all three sites,the residual fluxes of EBC peaked consistently at 110 W m^(-2).The spatial variability in net radiation was 19 W m^(-2)(5%of R_(n))during the day and 7 W m^(-2)(16%)at night,with an average of 13 W m^(-2)(11%)from eight plot measurements across the three sites.Large area measurements of Rn significantly increased by 9 W m^(-2)during the day and decreased by 4 W m^(-2)at night in the unclipped treatments.Net radiation decreased by 25 W m^(-2)(6%of Rn)at midday and 81 MJ m^(-2)(6%)during a growing season with heavier regular clipping than that in unclipped treatments.The Rn was lower by 11–21 W m^(-2)(~20–40%of Rn)measured by CNR1 than by Q7.1 at night,while there was only 6 W m^(-2)(~1–2%of Rn)difference during the daytime between these two types of commonly used net radiometers.Conclusions:Overall,the inclusion of the uncertainty in available energy accounted for 65%of the~110 W m^(-2)shortfalls in the lack of closure.Clearly,the unclosed energy balance at these three grassland sites remains significant,with unexplored mechanisms for future research. | Changliang Shao Linghao Li Gang Dong Jiquan Chen | 2014 | Ecological Processes2014，3，1： | 3 |
| 19 | Steady thermal hydraulic analysis for a molten salt reactor显示文摘The Molten Salt Reactor (MSR) can meet the demand of transmutation and breeding. In this study, theoretical calculation of steady thermal hydraulic characteristics of a graphite-moderated channel type MSR is conducted. The DRAGON code is adopted to calculate the axial and radial power factor firstly. The flow and heat transfer model in the fuel salt and graphite are developed on basis of the fundamental mass, momentum and energy equations. The results show the detailed flow distribution in the core, and the temperature profiles of the fuel salt, inner and outer wall in the nine typical elements along the axial flow direction are also obtained. | ZHANG Dalin QIU Suizheng LIU Changliang SU Guanghui | 2008 | Nuclear Science and Techniques2008，19，3： | 3 |
| 20 | Synthesis and Properties of Poly(butylene carbonate-co-spirocyclic carbonate)显示文摘Poly(butylene carbonateXPBC) has significantly promising applications as a degradable material in the field of polymers, while its poor thermal performance and low crystallization rate are its main defects. To overcome these shortcomings, a series of poly(butylene carbonate-co-spirocyclic carbonateXPBSC) copolymers were synthesized from diphenyl carbonate, 1,4-butanediol and spiroglycol via two-step polycondensation reactions, using magnesium oxide as a catalyst. Differential scanning calorimetry(DSC) results indicated that the glass transition temperature(Tg) values of PBSC copolymers were enhanced from -19℃ to 56℃ with rising the spiroacetal moiety content. Thermogravimetric analysis(TGA) results showed that the resulting PBSCs have a higher thermal stability than that of poly(butylene carbonate). Wide angle X-ray diflraction(WXRD) patterns were characterized to investigate the crystallization behaviour of PBSCs. Tensile testing demonstrated that copolymerization of spiroacetal moieties into PBC chains imparted PBSC with favourable mechanical performance. Typically, PBSC 30 had a tensile modulus of (1735±430) MPa, a tensile strength of (42±5) MPa and an elongation of 504%±36%. | ZHU Changliang LIU Shaoying WANG Qingyin ZHANG Hua | 2019 | Chemical Research in Chinese Universities2019，35，4： | 3 |
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