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| 1 | Thermodynamic modeling and phase diagram prediction of salt lake brine systemsⅡ.Aqueous Li^(+)-Na^(+)-K^(+)-SO_(4)^(2-) and its subsystems显示文摘It is still a challenging task to accurately and temperature-continuously express the thermodynamic properties and phase equilibrium behaviors of the salt-lake brine with multi-component,multitemperature and high concentration.The essential subsystem of sulfate type brine,aqueous Li^(+)-Na^(+)-K^(+)-SO_(4)^(2-) and its subsystems across a temperature range from 250 K to 643 K are investigated with the improved comprehensive thermodynamic model.Liquid parameters(Δg_(IJ),Δh_(IJ),and ΔC_(p,IJ))associated with the contributions of Gibbs energy,enthalpy,and heat capacity to the binary interaction parameters,i.e.the temperature coefficients of eNRTL parameters formulated with a Gibbs Helmholtz expression,are determined via multi-objective optimization method.The solid constantsΔ_(f)G_(k)°^((298.15))andΔ_(f)H_(k)°^((298.15))of11 solid species occurred in the quaternary system are rebuilt from multi-temperature solubilities.The modeling results show the accurate representation of(1)solution properties and binary phase diagram at temperature ranges from eutectic points to 643 K;(2)isothermal phase diagrams for Li_(2)SO_(4)-Na_(2)SO_(4)-H_(2)O,Li_(2)SO_(4)-K_(2)SO_(4)-H_(2)O and Na_(2)SO_(4)-K_(2)SO_(4)-H_(2)O ternary systems.The predicted results of complete structure and polythermal phase diagram of ternary systems and the isothermal phase diagrams of quaternary system excellently match with the experimental data. | Huan Zhou Peng Wu Wenxuan Li Xingfan Wang Kuo Zhou Qing Hao | 2021 | Chinese Journal of Chemical Engineering2021，34，6： | 6 |
| 2 | Groundwater net discharge rates estimated from lake level change in Badain Jaran Desert, Northwest China显示文摘Over a hundred sizable lakes,some even larger than^1 km2,are distributed across the lowlands between megadunes in the southeastern Badain Jaran Desert(BJD),northwest China.With rather limited precipitation and hardly any surface runoff,these lakes are fed mainly by groundwater.However,the source of the groundwater and the groundwater discharge rates to these lakes are poorly understood.Water level and temperature of four representative lakes in the southeastern BJD were monitored continuously between 2013 and 2017.Water surface evaporation and rainfall in this area were also measured.Combining these acquired data,groundwater discharge rates were estimated using water balance models.The results show that the four lakes have similar recharge and discharge patterns,but at different average net groundwater discharge rates ranging from 1.79 to 3.09 mm d?1.The lake level variation mainly depends on groundwater discharge and lake surface evaporation.We found that diurnal lake level variation may be controlled by earth tide and atmospheric pressure change,and is five times greater than the evaporation.The desert precipitation and deep confined groundwater with high temperature were found also recharging the desert lakes.An Empirical Mode Decomposition(EMD)method was used to identify the lake level trend.All lake levels increased over the last four years,except one decreased in 2015 and 2016.The lake levels’increasing trend is synchronously similar with the precipitation in north China.This study analyzes annual and seasonal lake level variations,and also finds the diurnal water cycle between the groundwater and lake water for the first time. | Xingfan WANG Hui ZHAO Yongwei SHENG Jianwei GENG Keqi WANG Hongyu YANG | 2020 | Science China Earth Sciences2020，63，5： | 2 |
| 3 | 显示文摘 | Li Hexing Chen Xingfan Wang Minghui | 2002 | Applied Catalysis A2002，225，12： | 1 |
| 4 | Alteration of gut microbiota in type 2 diabetes complicated with cholelithiasis patients显示文摘To the Editor:Type 2 diabetes(T2D)and cholelithiasis are both common diseases with a high,prevalence.In China,the,prevalence of T2D,is.0.90% and that offadult cholelithiasis is 6.83%. | Jiajia Chen Linlin Yan Xingfan Ma Ping Yuan Fan Zhao Zihan Han Jingshan Liu Wenbo Wang Donghai Zhou Hongyu Zhao Nan Feng Dandan Huang Shoukui Hu Jin Gui | 2022 | Chinese Medical Journal2022，135，17： | 1 |
| 5 | Clinical application of autologous chyle fat transplantation in the correction of sunken upper eyelid显示文摘Aim:We investigated the clinical application of autologous chyle fat in the correction of sunken upper eyelid.Methods:From November 2020 to October 2021,89 cases of correction with autologous chyle fat to sunken upper eyelid were performed(with or without other cosmetic procedures related to the eyes).An appropriate amount of fat was extracted from the superficial layer of the patient’s thigh and processed to chyle fat.About 0.5-2.8 mL of fat was injected under the orbicularis oculi muscle(roof-retro orbicularis oculi fat)or in the area where the orbital septal fat exists from the outer orbital margin of the upper eyelid.Results:In total,59 patients were followed up for 1-11 months after surgery.No infection,necrosis,vascular embolism,upper eyelid lumpiness,fat calcification,or liquefaction occurred in all patients,while seven cases showed inadequate correction.The depression basically disappeared,the shape was relatively full,the youthfulness was greatly improved,and the satisfaction of patients was high during the follow-up period.Conclusion:The correction with autologous chyle fat to sunken upper eyelid showed little trauma,short recovery periods,and satisfactory results,and it is worthy of being popularized and applied more widely. | Lin Qi Pu Wang Xingfan Chen | 2022 | Plastic and Aesthetic Research2022，9，1： | 1 |
| 6 | Actual Sensing Sensitivity and SNR Measurement of Optical Tweezers Based on Coulomb Force Input显示文摘Sensing sensitivity is the key performance of optical tweezers.By adjusting the frequency and magnitude of an applied Coulomb force as an input of optical tweezers,we directly measured the sensitivity and signal-to-noise ratio(SNR)of a system and indirectly calculated the actual noise magnitude.Combined with an output filter,the relationship between the SNR and bandwidths was studied.We established the simulation model of a system using Simulink and simulated the relationship between the SNR and magnitude of the input forces and filter bandwidths.In addition,we built an experimental system to determine the relationship between the SNR and the magnitude of the input forces and filter bandwidths.The actual minimum detectable force was measured as 1.8275×10^(-17)N at a 1Hz bandwidth.The experimental results were correlated with the simulation and theoretical results,confirming the effectiveness of the proposed method and demonstrating the high sensitivity of vacuum optical tweezers as mechanical sensors.We proposed a novel method of calibration and measurement of system sensing parameters by applying an actual force that was more direct and precise than the theoretical calculation method that requires accurate fitting parameters,such as the particle radius and density.This method can be employed to analyze the system noise and phase characteristics to confirm and improve the real performance of the system. | Jiaojiao WANG Xingfan CHEN Shaochong ZHU Zhenhai FU Nan LI Huizhu HU | 2023 | Photonic Sensors2023，13，1： | 0 |
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