|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Application of computational fluid dynamics simulation for submarine oil spill显示文摘Computational fluid dynamics(CFD) codes are being increasingly used in the simulation of submarine oil spills.This study focuses on the process of oil spills, from damaged submarine pipes, to the sea surface, using numerical models. The underwater oil spill model is developed, and a description of the governing equations is proposed,along with modifications required for the particalization of the control volume. Available experimental data were introduced to evaluate the validity of the CFD predictions, the results of which proved to be in good agreement with the experimental data. The effects of oil leak rate, leak diameter, current velocity, and oil density are investigated, by the validated CFD model, to estimate the undersea leakage time, the lateral migration distance,and surface diffusion range when the oil reaches the sea surface. Results indicate that the leakage time and lateral migration distance increase with decreasing leak rates and leak diameter, and increase with increasing current velocity and oil density. On the other hand, a large leak diameter, high density, high leak rate, or fast currents result in a greater surface diffusion range. The findings and analysis presented here will provide practical predictions of oil spills, and guidance for emergency rescues. | YANG Zhenglong YU Jianxing LI Zhigan CHEN Haicheng JIANG Meirong CHEN Xi | 2018 | Acta Oceanologica Sinica2018，37，11： | 3 |
| 2 | Optical and scintillation properties of Bi_4Si_3O_(12):RE(RE=Eu^(3+), Sm^(3+),Ho^(3+), Tb^(3+))single crystals显示文摘Bi_4 Si_3 O_(12):RE(BSO:RE, RE = Eu^(3+), Sm^(3+), Ho^(3+), Tb^(3+)) crystals were grown by the modified vertical Bridgeman method, and doping effects on scintillation properties were investigated. Under γ-ray irradiation, the light yield of BSO doped with small doses of Eu^(3+) increases slightly, and the energy resolution improves significantly compared to pure BSO, therefore the ability of distinguishing between particles will be improved for BSO crystals with a small amount of Eu^(3+) dopant. The results show that a small amount of Eu^(3+) doping can sensitize the Bi^(3+) ions. The sensitization effect enables the reduction of intrinsic defects, and thus improves the scintillation properties. However, the relative light yield of BSO:Tb(1.0 mol%) crystal is 4.3%, which is smaller than 5.0% of pure BSO. The improved light yield and energy resolution in the BSO:Eu and BSO:Sm crystals are considered an impressive achievement in the optimization of this scintillator which is already suitable for applications such as dual-readout calorimeters and homogeneous hadron calorimeters. | Xuefeng Xiao Jiayue Xu Haicheng Wei Yaoqing Chu Bobo Yang Xuefeng Zhang | 2019 | Journal of Rare Earths2019，37，3： | 2 |
| 3 | Applying fuzzy multiple attributes decision making for product configuration 显示文摘 | ZHU Bin WANG Zhang YANG Haicheng | 2008 | Journal of Intelligent Manu/aeturing2008，19，5： | 1 |
| 4 | Enzymatic kinetics ofβ-conglycinin using alkaline protease from Bacillus subtilis ACCC 01746 and analysis of antigenicity of hydrolyzed peptide显示文摘β-Conglycinin,the main protein of soybean,is a key allergen that causes soybean allergies,and hydrolysis is usually applied to lower its antigenicity.We evaluated the enzymolysis characters ofβ-conglycinin from the perspective of enzymolysis kinetics using alkaline protease from B.subtilis ACCC 01746.A dynamic model describing the hydrolysis ofβ-conglycinin was proposed using the initial substrate concentration,enzyme dosage(enzyme to substrate ratio)and hydrolysis time as variables to illustrate the kinetic behavior of enzymatic hydrolysis.The hydrolysis of soybeanβ-conglycinin was carried out at 60 g/L protein concentration,0.6%enzyme dosage,55℃ and pH 8.5 to observe the peptides with anti-enzymatic activities.The hydrolysates were gradually fractionated by ultrafiltration through cut-off membranes with molecular weights of 40,30,20,and 10 kDa,and their antigenicities were evaluated using indirect competitive enzyme-linked immunosorbent assay.The results showed that the degree of hydrolysis(DH)ofβ-conglycinin decreased as theβ-conglycinin concentration(S0)increased,but increased with enzyme dosage(E0)increasing.Thus,the enzymatic hydrolysis ofβ-conglycinin followed the first-order kinetics model.The hydrolysis rate(V)was(527.89C_(E0)-2.5533C_(S0))exp(-0.022DH),the DH-hydrolysis time was 45.454ln[1+(11.614C_(E0)/C_(S0)-0.0562)t],and the correlated kinetic constants k2 and kd were 527.89 min^(−1)and 8.6126 min^(−1),respectively.The hydrolysis behavior ofβ-conglycinin varied considerably among theα',α,andβsubunits.Faster hydrolysis rates were observed for theα'andαsubunits compared to theβsubunit.The relative molecular weights of the intercepted peptides from the hydrolysates were 14.8-40.1 kDa,and the antigenicity of the peptides with smaller molecular weight was reduced,but not removed completely.However,the alkaline protease from the strain appeared to effectively reduce the allergenicity ofβ-conglycinin.Therefore,it is possible to produce less allergenic soybean proteins using enzymatic hydrolysis.Additionally,the microbial alkaline protease may serve as a potential novel food enzyme and should be evaluated for the development of hypoallergenic foods. | Haicheng Yin Xinrui Zhang Zhixiang Yang Jin Huang | 2021 | Grain & Oil Science and Technology2021，4，3： | 1 |
| 5 | Preparation of Functionalized Graphene Nano-platelets and Use for Adsorption of Pb2+ from Solution显示文摘Functionalized graphene nano-platelets(FGN) were obtained via treating graphene nanoplatelets(GN) with HNO_3, and served as adsorbent for the removal of Pb^(2+) from solutions. We investigated the FGN adsorption capacity for Pb^(2+) at different initial concentrations, varying pH, contact time and temperature. The characterization results of scanning electron microscopy(SEM), thermal analysis(TG/DTG), Fourier transform infrared spectroscopy(FT-IR) and Brunauer-Emmett-Teller(BET) method indicated that FGN layers were thin and possess large specific area with oxygen-containing functional groups grafted onto their surface. Meanwhile, the determined equilibrium adsorption capacity of FGN for Pb^(2+) was 57.765 mg/g and adsorption isotherms well confirmed to Langmuir isotherms models. The results reveals that the FGN has better effect of water treatment. | 盛智博 曹明莉 HONG Yin WANG Shengniang FAN Zhihong XIONG Jianbo YANG Haicheng DENG Chunlin | 2018 | Journal of Wuhan University of Technology(Materials Science)2018，33，6： | 1 |
| 6 | GetCM:a vision of cloud manufacturing显示文摘 | Zhou Jingtao Yang Haicheng Wang Mingwei | 2011 | AdvancedMaterials Research2011，213，： | 1 |
| 7 | Preparation of Phytic Acid and its Characteristics as Copper Inhibitor显示文摘 | Wanyou Zhang Haicheng Gu Lijuan Xi Yingjie Zhang Yang Hu Ting Zhang | 2012 | Energy Procedia2012，，： | 1 |
| 8 | An Implementation of Modeling Resource in a Manufacturing Grid for Resource Sharing显示文摘 | Shu Shengyou Mo Rong Yang Haicheng | 2007 | International Journal of Computer Integrated Manufacturing2007，20，： | 1 |
| 9 | Enabling dendrite-free charging for lithium batteries based on transport-reaction competition mechanism in CHAIN framework显示文摘Worldwide trends in mobile electrification will skyrocket demands for lithium-based battery production,driven by the popularity of electric vehicles.However,both lithium metal batteries and lithium ion batteries face severe safety issues due to dendrite nucleation and growth process.Li deposition is significantly influenced by interfacial factors and charging conditions.In this paper,an electrochemical model considering the internal and external factors is proposed based on Monte Carlo method.The influence of internal solid electrolyte interphase(SEI)porosity,thickness and the external conditions on dendrite growth process is systematically described.The simulation results support that the three factors investigated in this model could synergistically regulate the dendrite growth process.Three competition mechanisms are proposed to tailor lithium deposition for Li-based batteries and numerical solutions for variation pattern of dendrite growth with time are fitted.A three-step process describing kinetic process of lithium deposition is proposed.To achieve dendrite-free charging process,charging strategies and emerging materials design should be considered,including physicochemical materials engineering,artificial SEI,and design for dynamic safety boundary.This work could contribute to the foundation for insights of Li deposition mechanism,which is promising to provide guidelines for next-generation high-energy-density and safe batteries in CHAIN framework. | Lisheng Zhang Siyan Chen Wentao Wang Hanqing Yu Haicheng Xie Huizhi Wang Shichun Yang Cheng Zhang Xinhua Liu | 2022 | Journal of Energy Chemistry2022，，12： | 1 |
| 10 | A re- source allocation method based on competitiveness equilibrium of manufacturing grid显示文摘 | SHI Shengyou YANG Haicheng LIU Haibin | 2009 | International Journal of Advanced Manufacturing Technology2009，41，910： | 1 |
| 11 | Positive and negative inertia index of a graph显示文摘 | Haicheng Ma Wenhua Yang Shenggang Li | 2013 | Linear Algebra and Its Applications2013，，1： | 1 |
| 12 | Positive and negative inertia index of a graph显示文摘 | Ma Haicheng Yang Wenhua Li Shenggang | 2013 | Linear Algebra and its Applications2013，438，1： | 1 |
| 13 | Correlating the electronic structures of metallic/semiconducting MoTe_(2)interface to its atomic structures显示文摘Contact interface properties are important in determining the performances of devices that are based on atomically thin two-dimensional(2D)materials,especially for those with short channels.Understanding the contact interface is therefore important to design better devices.Herein,we use scanning transmission electron microscopy,electron energy loss spectroscopy,and first-principles calculations to reveal the electronic structures within the metallic(1T)-semiconducting(2H)MoTe_(2)coplanar phase boundary across a wide spectral range and correlate its properties to atomic structures.We find that the 2 H-MoTe_(2)excitonic peaks cross the phase boundary into the 1 T phase within a range of approximately 150 nm.The1 T-MoTe_(2)crystal field can penetrate the boundary and extend into the 2H phase by approximately two unit-cells.The plasmonic oscillations exhibit strong angle dependence,that is a red-shift ofπ+σ(approximately 0.3–1.2 e V)occurs within 4 nm at 1 T/2 H-MoTe_(2)boundaries with large tilt angles,but there is no shift at zero-tilted boundaries.These atomic-scale measurements reveal the structure–property relationships of the 1 T/2 H-MoTe_(2)boundary,providing useful information for phase boundary engineering and device development based on 2 D materials. | Bo Han Chen Yang Xiaolong Xu Yuehui Li Ruochen Shi Kaihui Liu Haicheng Wang Yu Ye Jing Lu Dapeng Yu Peng Gao | 2021 | National Science Review2021，8，2： | 0 |
| 14 | Toward a stellar population catalog in the Kilo Degree Survey:The impact of stellar recipes on stellar masses and star formation rates显示文摘The Kilo Degree Survey(Ki DS)is currently the only sky survey providing optical(ugri)plus near-infrared(NIR,ZY H JKS)seeing matched photometry over an area larger than 1000 deg2.This is obtained by incorporating the NIR data from the VISTA Kilo Degree Infrared Galaxy(VIKING)survey,covering the same Ki DS footprint.As such,the Ki DS multi-wavelength photometry represents a unique dataset to test the ability of stellar population models to return robust photometric stellar mass(M_(*))and star-formation rate(SFR)estimates.Here we use a spectroscopic sample of galaxies for which we possess ugri ZY JHK_(s)“gaussianized”magnitudes from Ki DS data release 4.We fit the spectral energy distribution from the 9-band photometry using:(1)three different popular libraries of stellar population templates,(2)single burst,simple and delayed exponential star-formation history models,and(3)a wide range of priors on age and metallicity.As template fitting codes we use two popular softwares:Le Phare and CIGALE.We investigate the variance of the stellar masses and the star-formation rates from the different combinations of templates,star formation recipes and codes to assess the stability of these estimates and define some“robust”median quantities to be included in the upcoming Ki DS data releases.As a science validation test,we derive the mass function,the star formation rate function,and the SFR-M_(*)relation for a low-redshift(z<0.5)sample of galaxies,that result in excellent agreement with previous literature data.The final catalog,containing~290000 galaxies with redshift 0.01 | Linghua Xie Nicola R.Napolitano Xiaotong Guo Crescenzo Tortora Haicheng Feng Antonios Katsianis Rui Li Sirui Wu Mario Radovich Leslie K.Hunt Yang Wang Lin Tang Baitian Tang Zhiqi Huang | 2023 | Science China(Physics,Mechanics & Astronomy)2023，66，12： | 0 |
| 15 | A comprehensive framework for seasonal controls of leaf abscission and productivity in evergreen broadleaved tropical and subtropical forests显示文摘Relationships among productivity,leaf phenology,and seasonal variation in moisture and light availability are poorly understood for evergreen broadleaved tropical/subtropical forests,which contribute 25% of terrestrial productivity.On the one hand,as moisture availability declines,trees shed leaves to reduce transpiration and the risk of hydraulic failure.On the other hand,increases in light availability promote the replacement of senescent leaves to increase productivity.Here,we provide a comprehensive framework that relates the seasonality of climate,leaf abscission,and leaf productivity across the evergreen broadleaved tropical/subtropical forest biome.The seasonal correlation between rainfall and light availability varies from strongly negative to strongly positive across the tropics and maps onto the seasonal correlation between litterfall mass and productivity for 68 forests.Where rainfall and light covary positively,litterfall and productivity also covary positively and are always greater in the wetter sunnier season.Where rainfall and light covary negatively,litterfall and productivity are always greater in the drier and sunnier season if moisture supplies remain adequate;otherwise productivity is smaller in the drier sunnier season.This framework will improve the representation of tropical/subtropical forests in Earth system models and suggests how phenology and productivity will change as climate change alters the seasonality of cloud cover and rainfall across tropical/subtropical forests. | Xueqin Yang Jianping Wu Xiuzhi Chen Philippe Ciais Fabienne Maignan Wenping Yuan Shilong Piao Song Yang Fanxi Gong Yongxian Su Yuhang Dai Liyang Liu Haicheng Zhang Damien Bonal Hui Liu Guixing Chen Haibo Lu Shengbiao Wu Lei Fan Pierre Gentine SJoseph Wright | 2021 | The Innovation2021，2，4： | 0 |
| 16 | Residence time distribution and heat/mass transfer performance of a millimeter scale butterfly-shaped reactor显示文摘A millimeter scale butterfly-shaped reactor was proposed based on sizing-up strategy and fabricated via femtosecond laser engraving. An improvement of mixing performance and residence time distribution was realized by means of contraction and expansion of the reaction channel. The liquid holdup was greatly increased through connection of multiple mixing units. Structure optimization of the reactor was carried out by computational fluid dynamics simulation, from which the effect of reactor internals on mixing and the influence of parallel branching structure on heat transfer were discussed. The UV–vis absorption spectroscopy was used to determine the residence time distribution in the reactor, and characteristic parameters such as skewness and dimensionless variance were obtained. Further, a chained stagnant flow model was proposed to precisely describe the trailing phenomenon caused by fluid stagnation and laminar flow in small scale reactors, which enables a better fit for the experimental results of the asymmetric residence time distribution. In addition, the heat transfer performance of the reactor was investigated, and the overall heat transfer coefficient was 110–600 W m^(-2)K-1in the flow rate range of 10–40 m L/min. | Haicheng Lv Jundi Wang Zhongming Shu Gang Qian Xuezhi Duan Zhirong Yang Xinggui Zhou Jing Zhang | 2023 | Chinese Chemical Letters2023，34，4： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员