|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | High temperature and high pressure rheological properties of high-density water-based drilling fluids for deep wells显示文摘To maintain tight control over rheological properties of high-density water-based drilling fluids, it is essential to understand the factors influencing the rheology of water-based drilling fluids. This paper examines temperature effects on the rheological properties of two types of high-density water-based drilling fluids (fresh water-based and brine-based) under high temperature and high pressure (HTHP) with a Fann 50SL rheometer. On the basis of the water-based drilling fluid systems formulated in laboratory, this paper mainly describes the influences of different types and concentration of clay, the content of a colloid stabilizer named GHJ-1 and fluid density on the rheological parameters such as viscosity and shear stress. In addition, the effects of aging temperature and aging time of the drilling fluid on these parameters were also examined. Clay content and proportions for different densities of brine-based fluids were recommended to effectively regulate the rheological properties. Four rheological models, the Bingham, power law, Casson and H-B models, were employed to fit the rheological parameters. It turns out that the H-B model was the best one to describe the rheological properties of the high-density drilling fluid under HTHP conditions and power law model produced the worst fit. In addition, a new mathematical model that describes the apparent viscosity as a function of temperature and pressure was established and has been applied on site. | Wang Fuhua Tan Xuechao Wang Ruihe Sun Mingbo Wang Li Liu Jianghua | 2012 | Petroleum Science2012，9，3： | 8 |
| 2 | Theoretical analysis of flamelet model for supersonic turbulent combustion显示文摘Being physically intuitionistic and computationally efficient,the flamelet model has obtained increasing attention and becomes popular in numerical simulations of supersonic combustion.However,the flamelet model was firstly built for simulations of the low-speed flows.Therefore it is still unclear whether the assumption of the flamelet model is reasonable in supersonic combustion.This paper tries to identify the existence of the flamelet mode in supersonic combustion.Firstly,the interaction of the turbulent fluctuation and the flame is discussed,based on which the combustion regime is distinguished.Then the charac-teristic length scale of the turbulent flows and the combustion inside the scramjet combustor are calculated and compared,which are used to identify whether the assumption of the flamelet model is reasonable in supersonic flows.The results show that for premixed combustion,due to the low fluctuation velocity in the recirculation zone and the shear layer,the assumption of the flamelet model is established for all the flight Mach numbers,while for non-premixed combustion the assumption is also established for most of the flight Mach numbers except for very high Mach number under which the slow reaction mode dominates the combustion.In order to quantitatively examine the combustion mode,numerical calculations are performed to simulate the strut-injection supersonic combustion which has been experimentally investigated in German Aerospace Center.The results show that the supersonic combustion occurs in the fully-developed turbulent regions and the assumption of the flamelet model is established in the whole flow field. | FAN ZhouQin LIU WeuDong SUN MingBo WANG ZhenGuo ZHUANG FengChen LUO WenLei | 2012 | Science China(Technological Sciences)2012，55，1： | 7 |
| 3 | Bias-drift-free Mach–Zehnder modulators based on a heterogeneous silicon and lithium niobate platform显示文摘Optical modulators have been and will continue to be essential devices for energy-and cost-efficient optical communication networks.Heterogeneous silicon and lithium niobate modulators have demonstrated promising performances of low optical loss,low drive voltage,and large modulation bandwidth.However,DC bias drift is a major drawback of optical modulators using lithium niobate as the active electro-optic material.Here,we demonstrate high-speed and bias-drift-free Mach–Zehnder modulators based on the heterogeneous silicon and lithium niobate platform.The devices combine stable thermo-optic DC biases in silicon and ultra-fast electro-optic modulation in lithium niobate,and exhibit a low insertion loss of 1.8 d B,a low half-wave voltage of 3 V,an electro-optic modulation bandwidth of at least 70 GHz,and modulation data rates up to 128 Gb/s. | SHIHAO SUN MINGBO HE MENGYUE XU SHENGQIAN GAO ZIYAN CHEN XIAN ZHANG ZILIANG RUAN XIONG WU LIDAN ZHOU LIN LIU CHAO LU CHANGJIAN GUO LIU LIU SIYUAN YU XINLUN CAI | 2020 | Photonics Research2020，8，12： | 5 |
| 4 | Assessment of organic compost and biochar in promoting phytoremediation of crude-oil contaminated soil using Calendula officinalis in the Loess Plateau, China显示文摘The Loess Plateau,located in Gansu Province,is an important energy base in China because most of the oil and gas resources are distributed in Gansu Province.In the last 40 a,ecological environment in this region has been extremely destroyed due to the over-exploitation of crude-oil resources.Remediation of crude-oil contaminated soil in this area remains to be a challenging task.In this study,in order to elucidate the effects of organic compost and biochar on phytoremediation of crude-oil contaminated soil(20 g/kg)by Calendula officinalis,we designed five treatments,i.e.,natural attenuation(CK),planted C.officinalis only(P),planted C.officinalis with biochar amendment(PB),planted C.officinalis with organic compost amendment(PC),and planted C.officinalis with co-amendment of biochar and organic compost(PBC).After 152 d of cultivation,total petroleum hydrocarbons(TPH)removal rates of CK,P,PB,PC and PBC were 6.36%,50.08%,39.58%,73.10%and 59.87%,respectively.Shoot and root dry weights of C.officinalis significantly increased by 172.31%and 80.96%under PC and 311.61%and 145.43%under PBC,respectively as compared with P(P<0.05).Total chlorophyll contents in leaves of C.officinalis under P,PC and PBC significantly increased by 77.36%,125.50%and 79.80%,respectively(P<0.05)as compared with PB.Physical-chemical characteristics and enzymatic activity of soil in different treatments were also assessed.The highest total N,total P,available N,available P and SOM(soil organic matter)occurred in PC,followed by PBC(P<0.05).C.officinalis rhizospheric soil dehydrogenase(DHA)and polyphenol oxidase(PPO)activities in PB were lower than those of other treatments(P<0.05).The values of ACE(abundance-based coverage estimators)and Chao 1 indices for rhizospheric bacteria were the highest under PC followed by PBC,P,PB and CK(P<0.05).However,the Shannon index for bacteria was the highest under PC and PBC,followed by P,PB and CK(P<0.05).In terms of soil microbial community composition,Proteiniphilum,Immundisolibacteraceae and Solimonadaceae were relatively more abundant under PC and PBC.Relative abundances of Pseudallescheria,Ochroconis,Fusarium,Sarocladium,Podospora,Apodus,Pyrenochaetopsis and Schizothecium under PC and PBC were higher,while relative abundances of Gliomastix,Aspergillus and Alternaria were lower under PC and PBC.As per the nonmetric multidimensional scaling(NMDS)analysis,application of organic compost significantly promoted soil N and P contents,shoot length,root vitality,chlorophyll ratio,total chlorophyll,abundance and diversity of rhizospheric soil microbial community in C.officinalis.A high p H value and lower soil N and P contents induced by biochar,altered C.officinalis rhizospheric soil microbial community composition,which might have restrained its phytoremediation efficiency.The results suggest that organic compost-assisted C.officinalis phytoremediation for crude-oil contaminated soil was highly effective in the Loess Plateau,China. | WANG Jincheng JING Mingbo ZHANG Wei ZHANG Gaosen ZHANG Binglin LIU Guangxiu CHEN Tuo ZHAO Zhiguang | 2021 | Journal of Arid Land2021，13，6： | 4 |
| 5 | Nanocluster PtNiP supported on graphene as an efficient electrocatalyst for methanol oxidation reaction显示文摘In this study,phosphorus doped graphene supported PtNiP nanocluster electrocatalyst(PtNiP/P-graphene)was successfully prepared via a simple hypophosphite-assisted co-reduction method.The improved anchoring force and increased anchoring sites of graphene support result from phosphorus doping as well as size-confined growth effect of NaH_(2)PO_(2) leads to uniform dispersion of ultrafine PtNiP nanoclusters.Doped P also promotes the removal of CO-like intermediate by adjusting Pt electronic structure combining with alloyed Ni via electronic effects.As a result,the as-prepared PtNiP/P-graphene catalyst with more exposed active sites and optimized electronic structure of Pt alloy shows excellent electrocatalytic performances for methanol oxidation reaction(MOR)both in activity and durability in an acidic medium. | Long Yang Guoqiang Li Rongpeng Ma Shuai Hou Jinfa Chang Mingbo Ruan Wenbin Cai Zhao Jin Weilin Xu Guiling Wang Junjie Ge Changpeng Liu Wei Xing | 2021 | Nano Research2021，14，8： | 4 |
| 6 | High-temperature mechanical properties of as-extruded AZ80 magnesium alloy at different strain rates显示文摘The mechanical properties of as-extruded AZ80 magnesium alloy at temperatures of 450-525℃ and strain rates of 3.0 s^(−1)and 0.15 s^(−1)were investigated by tensile tests.Zero ductility of alloy appeared at 500℃ with a strain rate of 0.15 s^(−1),while the zero strength and zero ductility of the alloy were obtained nearly simultaneously at 525℃ with a strain rate of 3.0 s^(−1).The results indicated that the lower strain rate accelerated the arrival of zero ductility.As the temperature increased,the failure mode of the alloy developed from trans-granular fracture to cleavage fracture and then to inter-granular fracture with the feature of sugar-like grains and fusion traces.The existence of the low-melting composite ofβ-Mg_(17)Al_(12) and Al_(8)Mn_(5) particles segregated near the Mg_(17)Al_(12) phase along grain boundaries were demonstrated to be the reason for the brittle fracturing of the AZ80 alloy at high temperatures.Furthermore,microstructural evolution at temperatures approaching the solidus temperature was discussed to clarify magnesium alloy’s high temperature deformation mechanism. | Wenjun Liu Bin Jiang Hongchen Xiang Qing Ye Shengqi Xia Siqiang Chen Jiangfeng Song Yanlong Ma Mingbo Yang | 2022 | International Journal of Minerals,Metallurgy and Materials2022，29，7： | 3 |
| 7 | Dual-band and ultra-broadband photonic spin-orbit interaction for electromagnetic shaping based on single-layer silicon metasurfaces显示文摘Achieving electromagnetic wave scattering manipulation in the multispectral and broad operation band has been a long pursuit in stealth applications. Here, we present an approach by using single-layer metasurfaces composed of space-variant amorphous silicon ridges tiled on a metallic mirror, to generate high-efficiency dual-band and ultra-wideband photonic spin-orbit interaction and geometric phase. Two scattering engineered metasurfaces have been designed to reduce specular reflection;the first one can suppress both specular reflectances at 1.05–1.08 μm and 5–12 μm below 10%. The second one is designed for an ultra-broadband of 4.6–14 μm, which is actually implemented by cleverly connecting two bands of 4.6–6.1 μm and 6.1–14 μm. Furthermore, the presented structures exhibit low thermal emission at the same time due to the low absorption loss of silicon in the infrared spectrum, which can be regarded as an achievement of laser–infrared compatible camouflage.We believe the proposed strategy may open a new route to implement multispectral electromagnetic modulation and multiphysical engineering applications. | XIN XIE MINGBO PU XIONG LI KAIPENG LIU JINJIN JIN XIAOLIANG MA XIANGANG LUO | 2019 | Photonics Research2019，7，5： | 2 |
| 8 | Distributionally Robust Optimal Dispatch of Offshore Wind Farm Cluster Connected by VSC-MTDC Considering Wind Speed Correlation显示文摘Multi-terminal voltage source converter-based highvoltage direct current(VSC-MTDC)transmission technology has become an important mode for connecting adjacent offshore wind farms(OWFs)to power systems.Optimal dispatch of an OWF cluster connected by the VSC-MTDC can improve economic operation under the uncertainty of wind speeds.A two-stage distributionally robust optimal dispatch(DROD)model for the OWF cluster connected by VSC-MTDC is established.The first stage in this model optimizes the unit commitment of wind turbines to minimize mechanical loss cost of units under the worst joint probability distribution(JPD)of wind speeds,while the second stage searches for the worst JPD of wind speeds in the ambiguity set(AS)and optimizes active power output of wind turbines to minimize the penalty cost of the generation deviation and active power loss cost of the system.Based on the Kullback–Leibler(KL)divergence distance,a data-driven AS is constructed to describe the uncertainty of wind speed,considering the correlation between wind speeds of adjacent OWFs in the cluster by their joint PD.The original solution of the two-stage DROD model is transformed into the alternating iterative solution of the master problem and the sub-problem by the column-and-constraint generation(C&CG)algorithm,and the master problem is decomposed into a mixedinteger linear programming and a continuous second-order cone programming by the generalized Benders decomposition method to improve calculation efficiency.Finally,case studies on an actual OWF cluster with three OWFs demonstrate the correctness and efficiency of the proposed model and algorithm. | Xiangyong Feng Shunjiang Lin Wanbin Liu Weikun Liang Mingbo Liu | 2023 | CSEE Journal of Power and Energy Systems2023，9，3： | 2 |
| 9 | Olfactory and gustatory dysfunctions of COVID-19 patients in China:A multicenter study显示文摘Introduction:With the spread of the epidemic worldwide,an increasing number of doctors abroad have observed the following atypical symptoms of coronavirus disease 2019(COVID-19):olfactory or taste disorders.Therefore,clarifying the incidence and clinical characteristics of olfactory and taste disorders in Chinese COVID-19 patients is of great significance and urgency.Materials and Methods:A retrospective study was conducted,which included 229 severe acute respiratory syndrome coronavirus 2 confirmed patients,through face-to-face interviews and telephone follow-up.Following the completion of questionnaires,the patients participating in the study,were categorized according to the degree of olfactory and taste disorders experienced,and the proportion of each clinical type of patient with olfactory and taste disorders and the time when symptoms appeared were recorded.Results:Among the 229 patients,31(13.54%)had olfactory dysfunction,and 44(19.21%)had gustatory dysfunction.For the patients with olfactory dysfunction,6(19.35%)developed severe disease and became critically ill.Olfactory dysfunction appeared before the other symptoms in 21.43%of cases.The proportion of females with olfactory and gustatory dysfunction was higher than that of males(P<0.001).Conclusions:The incidence of olfactory and gustatory dysfunction was much lower than that reported abroad;the prognosis of patients with olfactory dysfunction is relatively favorable;olfactory and gustatory dysfunction can be used as a sign for early screening;females are more prone to olfactory and gustatory dysfunction. | Jianhui Li Yi Sun Enqiang Qin Hu Yuan Mingbo Liu Wenqi Yi Zhu Chen Chengcheng Huang Fengjie Zhou Ruiyao Chen Leibo Zhang Ning Yu Qiong Liu Xuejun Zhou Jingjing He Boyu Li Fusheng Wang Changliang Yang Shiming Yang | 2022 | World Journal of Otorhinolaryngology-Head and Neck Surgery2022，8，4： | 2 |
| 10 | Expression of CD147 and Lewis y antigen in ovarian cancer and their relationship to drug resistance显示文摘 | Jian Gao Zhenhua Hu Juanjuan Liu Dawo Liu Yanyan Wang Mingbo Cai Danye Zhang Mingzi Tan Bei Lin | 2014 | Medical Oncology2014，，5： | 2 |
| 11 | Increasing black start capacity by fast cut back function of thermal power plants 显示文摘 | LU En QIN Zhijun LIU Mingbo | 2013 | International Journal of Smart Grid and Clean Energy2013，2，1： | 1 |
| 12 | Increasing black start capacity by fast cut back function of thermal power plants显示文摘 | Lu En Qin Zhijun Liu Mingbo | 2013 | International Journal of Smart Grid and Clean Energy2013，2，1： | 1 |
| 13 | Effects of calcium dobesilate on glomerulus TIMP1 and collagen IV of diabetic rats显示文摘 | Dong Junwu Liu Xiaochen Liu Shenwei Li Mingbo Xu Yanmei Cui Bing | 2005 | Journal of Huazhong University of Science and Technology2005，，4： | 1 |
| 14 | Calculation of available transfer capability with Transient stability constraints 显示文摘 | Xia Yah Chan Kawing Liu Mingbo | 2004 | Proceed- ings of the IEEE International Conference2004，，1： | 1 |
| 15 | An extended nonlinear primal-dual interior-point algorithm for reactive-power optimization of large-scale power systems with discrete control variables显示文摘 | LIU Mingbo TSO S K CHENG Ying | 2002 | IEEE Power Engineering Review2002，22，4： | 1 |
| 16 | An Extended Nonlinear Primaldual Interior-point Algorithm for Reactive-power Optimization of Large-scale Power Systems with Discrete Control Variables显示文摘 | Mingbo Liu Tao S K | 2002 | IEEE Trans on Power Systems2002，17，4： | 1 |
| 17 | An extended nonlinear primal-dual interior-point algorithm for reactive-power optimization of large-scale power systems with discrete control variables显示文摘 | Liu Mingbo Tso S K Cheng Ying | | 0，，04： | 1 |
| 18 | Basic study of combustion-material removal process by uhi-function electrode显示文摘 | Liu Zhidong Xu An'yang Qiu Mingbo | 2013 | Procedia CIRP2013，6，： | 1 |
| 19 | An extended nonlinear primal-dual interiorpoint aigorithm for reactive-power optimization of large-scale power systems with discrete control variables显示文摘 | Liu Mingbo Tao S K | 2002 | IEEE Trans on Power Systems2002，17，4： | 1 |
| 20 | A novel approach in preparing polymer/nano-CaCO3 composites显示文摘 | Zhengying Liu Runze Yu Mingbo Yang Jianmin Feng Wei Yang Bo Yin | 2008 | Frontiers of Chemical Engineering in China2008，，1： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员