|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Accelerated methane storage in clathrate hydrates using surfactantstabilized suspension with graphite nanoparticles显示文摘In this study,enhanced kinetics of methane hydrate formation in the sodium dodecyl sulfate(SDS)solution with different concentrations of suspended graphite nanoparticles(GNPs)were investigated at 6.1-9.0 MPa and 274.15 K.The GNPs with rough surfaces and excellent thermal conductivity not only provided a considerable number of microsites for hydrate nucleation but also facilitated the fast hydrate heat transfer in the suspension system.At a relatively low pressure of 6.1 MPa,the suspension with 0.4 wt%of GNPs exhibited the minimum induction time of 22 min and maximum methane uptake of 126.1 cm3·cm-3.However,the methane storage performances of the suspensions with higher and lower concentrations of GNPs were not satisfactory.At the applied pressure,the temperature increase arising from the hydrate heat in the suspension system with the optimized concentration(0.4 wt%)of GNPs was more significant than that in the traditional SDS solution.Furthermore,compared with those of the system without GNPs,enhanced hydration rate and storage capacity were achieved in the suspensions with GNPs,and the storage capacities were increased by 3.9%-17.0%.The promotion effect of GNPs on gas hydrate formation at low pressure is much more obvious than that at high pressure. | Liang Yang Xin Wang Daoping Liu Guomin Cui Binlin Dou Juan Wang Shuqing Hao | 2020 | Chinese Journal of Chemical Engineering2020，28，4： | 4 |
| 2 | A New Nodes-Based Model for Optimization of Heat Exchanger Network Synthesis显示文摘Searching the global optimal value in heat exchanger network synthesis (HENS) becomes more difficult along with the increasing scale of cases.In structural opitimization model,such as stage-wise superstructure,solution domain can be enlarged by adding the stages of network,which would involve multiple integer and continuous variables in optimization and result in a decreasing computational efficiency.Thus,a new nodes-based model with stream splits is proposed,which can promote the quality of result and decrease time consumption at the same time.The characteristic of this model is that it changes the matching mode of heat exchangers by setting the number of nodes on streams to quantify the positions of heat exchangers.The proposed nodes-based model has more flexibility in generating and eliminating the heat exchangers and strong ductility in exploring the solution domain.The random walk with compulsive evolution is modified for enhancing its searching ability and applying modified random walk algorithm with compulsive evolution (RWCE) into the new proposed model.The obtained results of Case 1,Case 2 and Case 3 are superior to those reported in the literature,which decreases 106 USD·a-1,1253 USD·a-1,23 444 USD·a-1,respectively,verifying the robust effectiveness of this new model in solving HENS problem. | XU Yue HERI Ambonisye Kayange XIAO Yuan CUI Guomin | 2021 | Journal of Thermal Science2021，30，2： | 4 |
| 3 | Transesterifica- tion of Palm Oil with Methanol to Biodiesel over a KF/AI2Oa Heterogeneous Base Catalyst显示文摘 | Xu Bo Xiao Guomin Cui Lingfeng | 2007 | Energy Fuels2007，21，6： | 1 |
| 4 | A Principle of Stream Arrangement Based on Uniformity Factor for Heat Exchanger Networks Synthesis显示文摘 | He Qiaole Cui Guomin | | 0，，2： | 1 |
| 5 | Heat ex- changer network optimized with filling and tunneling function显示文摘 | TU Weimin CUI Guomin HU Xiangbai | 2012 | 32(7 ) : 1225-12272012，32，7： | 1 |
| 6 | Pore Network Study of Slow Evaporation in Hydrophobic Porous Media显示文摘 | Wu Rui Cui Guomin Chen Rong | 2014 | Int JHeat Mass Transfer2014，68，1： | 1 |
| 7 | Effects of Different Flue-curing Technologies on Submicroscopic Structure of Flue-cured Tobacco Leaves显示文摘[Objective]This study aimed to compare the effects of low-temperature low-humidity tobacco flue-curing technology,moderate-temperature moderatehumidity tobacco flue-curing technology and moderate-temperature high-humidity tobacco flue-curing technology on submicroscopic structure of flue-cured tobacco leaves to provide theoretical basis for tobacco flue-curing. [Method] Middle leaves of tobacco cultivar K326 were collected in Pengshui County of Chongqing City for flue-curing experiment using three flue-curing technologies. Leaf samples were collected regularly in the flue-curing process,to investigate the submicroscopic structure of flue-cured tobacco leaves. [Result]Morphology changes and structural rupture of chloroplasts occurred at different time during three flue-curing processes. In low-temperature low-humidity flue-curing process,morphology changes and structural rupture of chloroplasts occurred late but rapidly; in moderate-temperature moderate-humidity flue-curing process and moderate-temperature high-humidity flue-curing process,morphology changes and structural rupture of chloroplasts occurred early but slowly. Among these three flue-curing processes,the speed of changes in mitochondria morphology,cristae number and membrane rupture presented an upward order of low-temperature low-humidity flue-curing process < moderate-temperature high-humidity flue-curing process < moderate-temperature moderate-humidity flue-curing process. In low-temperature low-humidity flue-curing process,starch granules in chloroplasts ruptured after flue-curing for 36- 48 h;in moderate-temperature moderate-humidity flue-curing process,starch granules in chloroplasts ruptured after flue-curing for 24- 36 h; in moderate-temperature high-humidity flue-curing process,starch granules in chloroplasts ruptured after flue-curing for 12- 24 h. [Conclusion]Using low-temperature low-humidity fluecuring technology could prolong the maintenance duration of the submicroscopic structure integrity of flue-cured tobacco leaves,which was conducive to fully decomposing and transforming substances in tobacco leaves and obtaining high-quality flue-cured tobacco leaves. | Guomin CUI Bojun WANG Rongchun LI Anding XU Yiyin CHEN Chao YANG Min PU | 2014 | Agricultural Biotechnology2014，3，1： | 1 |
| 8 | Effects of Different Flue-curing Technologies on Microscopic Structure of Flue-cured Tobacco Leaves显示文摘[Objective]This study aimed to compare the effects of Chinese quality-improving fragrance-increasing tobacco flue-curing technology,Chinese threestage tobacco flue-curing technology and Zimbabwean tobacco flue-curing technology on microscopic structure of flue-cured tobacco leaves to provide theoretical basis for tobacco flue-curing. [Method]Middle leaves of tobacco cultivar K326 were collected in Pengshui County of Chongqing City for flue-curing experiment using three flue-curing technologies. Leaf samples were collected regularly in the flue-curing process,to investigate the microscopic structure of flue-cured tobacco leaves.[Result]During three flue-curing processes,leaves,palisade tissues and sponge tissues shrank gradually. Three flue-curing processes exhibited significant differences in the peak of tissue shrinkage: microscopic structure of flue-cured tobacco leaves in Chinese three-stage tobacco flue-curing process shrank earliest,follower by Chinese quality-improving fragrance-increasing tobacco flue-curing process; flue-cured tobacco leaves in Zimbabwean tobacco flue-curing process presented the latest shrinkage. At 84 h post-curing,leaf thickness in three flue-curing processes showed a descend order of Chinese three-stage tobacco flue-curing process >Chinese quality-improving fragrance-increasing tobacco flue-curing process > Zimbabwean tobacco flue-curing process. Upper and lower epidermal cells in Zimbabwean tobacco flue-curing process ruptured earlier than other two flue-curing processes; eventually,the majority of cells ruptured and mixed with palisade tissues and sponge tissues. In Chinese quality-improving fragrance-increasing tobacco flue-curing process,only a small number of epidermal cells in dried leaves ruptured.Among three flue-curing technologies,Zimbabwean tobacco flue-curing technology exhibited the greatest damage to epidermal cells,followed by Chinese three-stage tobacco flue-curing technology; Chinese quality-improving fragrance-increasing tobacco flue-curing technology had the minimum damage to epidermal cells. Mesophyll cross-section exhibited significant morphological changes in stomata. To be specific,at 0- 12 h post-curing,stomata of tobacco leaves closed with slightly prominent stomatal apparatuses on upper and lower epidermis; at 24- 72 h post-curing,stomata of tobacco leaves changed gradually from opening to closure with significantly prominent stomatal apparatuses on upper and lower epidermis; at 84 h post-curing,stomata of tobacco leaves closed,and the majority of stomatal apparatuses were significantly prominent. In Chinese quality-improving fragrance-increasing tobacco flue-curing process,only a small number of epidermal cells ruptured at 84 h post-flue-curing; palisade tissues and sponge tissues shrank almost simultaneously. Significant gaps were observed between palisade tissues and between palisade tissues and sponge tissues. Chinese quality-improving fragrance-increasing tobacco flue-curing technology exhibited lower disorder level compared with other two flue-curing technologies. [Conclusion]Chinese quality-improving fragrance-increasing tobacco flue-curing technology was conducive to maintaining the microscopic structure integrity of flue-cured tobacco leaves and obtaining high-quality flue-cured tobacco leaves. | Guomin CUI Bojun WANG Rongchun LI Anding XU Yiyin CHEN Chao YANG Min PU | 2014 | Agricultural Biotechnology2014，3，2： | 1 |
| 9 | Transesterification of Palm Oil with Methanol to Biodiesel over a KF/AI203 Het- erogeneous Base Catalyst 显示文摘 | Xu Bo Xiao Guomin Cui Lingfeng | 2007 | Energy Fuels2007，21，6： | 1 |
| 10 | The regulation mechanism and heat transfer enhancement of composite mixed paraffin and copper foam phase change materials显示文摘Phase change materials(PCMs)have remarkable energy storage capacity and promising applications in the field of thermal control of electronic products.The problem of thermal property improvement and heat transfer of PCMs in metal-foam heatsinks is an important task for thermal management of electronic components.Mixed paraffin samples were prepared by mixing appropriate proportions of paraffin(mass)at various temperatures.Differential scanning calorimetry analysis revealed that the maximum enthalpy of 206.3 J/g is obtained by mixing 20%of 17°C liquid paraffin and 80%of 29℃ solid paraffin.Heating and cooling cycling tests revealed that mixed paraffin exhibits excellent thermal stability and that the regulation method marginally affects thermal stability.Moreover,composites were prepared by embedding PCM into a copper foam by melt impregnation.The thermal conductivity of the composites increased to 4.35 W/(m K),corresponding to 20 times its original value.In addition,density functional theory and experimental results were in good agreement,indicating that the regulation method is practical and effective. | YANG HanXue ZHANG GuanHua DOU BinLin CUI GuoMin YAN XiaoYu LU Wei WANG ZiLong | 2023 | Science China(Technological Sciences)2023，66，8： | 1 |
| 11 | Transesterification of Cottonseed Oil to Biodiesel by Using Heterogeneous Solid Basic Catalysts 显示文摘 | Cui Lingfeng Xiao Guomin Xu Bo | 2007 | Energy & Fuels2007，，21： | 1 |
| 12 | A new model for predicting the critical liquid-carrying velocity in inclined gas wells显示文摘Based on the assumption of gas-liquid stratified flow pattern in inclined gas wells,considering the influence of wettability and surface tension on the circumferential distribution of liquid film along the wellbore wall,the influence of the change of the gas-liquid interface configuration on the potential energy,kinetic energy and surface free energy of the two-phase system per unit length of the tube is investigated,and a new model for calculating the gas-liquid distribution at critical conditions is developed by using the principle of minimum energy.Considering the influence of the inclination angle,the calculation model of interfacial friction factor is established,and finally closed the governing equations.The interface shape is more vulnerable to wettability and surface tension at a low liquid holdup,resulting in a curved interface configuration.The interface is more curved when the smaller is the pipe diameter,or the smaller the liquid holdup,or the smaller the deviation angle,or the greater gas velocity,or the greater the gas density.The critical liquid-carrying velocity increases nonlinearly and then decreases with the increase of inclination angle.The inclination corresponding to the maximum critical liquid-carrying velocity increases with the increase of the diameter of the wellbore,and it is also affected by the fluid properties of the gas phase and liquid phase.The mean relative errors for critical liquid-carrying velocity and critical pressure gradient are 1.19%and 3.02%,respectively,and the misclassification rate is 2.38%in the field trial,implying the new model can provide a valid judgement on the liquid loading in inclined gas wells. | WANG Wujie CUI Guomin WEI Yaoqi PAN Jie | 2021 | Petroleum Exploration and Development2021，48，5： | 0 |
| 13 | Cultivating Multi-disciplinary Talents of Medicine-Engineering in the Context of Science and Education Integration显示文摘Owing to the growing demand for interdisciplinary professionals in high-tech medical equipment,Medicine-Engineering Co-education has become crucial to train the demanded talents in China.How to cultivate inter-disciplinary talents with the theoretical foundation of medicine-engineering as well as research an ability has become an urgent problem for higher education.In the context of promoting a Healthy China,this article analyzes the current situation and challenges for cultivating talents of medicine-engineering.Also,it explores solutions for training interdisciplinary professionals through medicine-engineering integration by constructing an integrated platform optimizing the team of“dual tutor”and establishing an all-around talent cultivation mode. | ZHAO Jie YUE Xuezheng GAO Wu CUI Guomin | 2023 | US-China Education Review(B)2023，13，5： | 0 |
| 14 | Negative differential resistance in molecular devices: the role of molecule-electrode coupling显示文摘By applying nonequilibrium Green's function formalism combined with the first-principles density functional theory, we investigate the electronic transport in two molecular junctions constituted by a substituted oligo (phenylene ehtynylene) sand-wiched between two Au electrodes. Our calculations show that the weak molecule-electrode coupling is responsible for the observation of the negative differential resistance (NDR) effect in experiments. When the coupling is weak, the projected density of states (PDOS) of the molecule and the electrodes undergoes a mismatch-match-mismatch procedure, which increases and then decreases the transmission peak intensities, leading to a NDR effect. We also find that the localization/delocalization of the molecular orbitals and the change of charge state of the molecule have no direct relation with the NDR effect, because they change little as the voltage increases. | ZHAI YaXin JI GuoMin FANG ChangFeng CUI Bin ZHAO Peng LIU DeSheng | 2011 | Science China(Physics,Mechanics & Astronomy)2011，54，8： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员