WHAT A GIRL WANTS

Hu Yue 한국콘텐츠학회 2020 ICCC International Digital Design Invitation Exhib Vol.2020 No.11

New regularity criterion for the Navier-Stokes equations

Hu Yue,Yuanshan Zhaoy 장전수학회 2009 Proceedings of the Jangjeon mathematical society Vol.12 No.3

We study the incompressible Navier-stokes equations in the entire three-dimensional space, We prove that if [tntlr] where [tntlr] then the solution is regular.

Insight into increased stability of methane hydrates at high pressure from phase equilibrium data and molecular structure

Hu, Yue,Lee, Bo Ram,Sum, Amadeu K. Elsevier 2017 Fluid phase equilibria Vol.450 No.-

<P><B>Abstract</B></P> <P>The methane hydrate dissociation conditions are measured at high pressures (up to 200 MPa) to fundamentally understand the hydrate properties. The results show an increased enthalpy of dissociation, from about 53 to 58 kJ/mol, as the hydrate equilibrium pressures transition from low (<80 MPa) to higher pressures (up to 200 MPa), indicating greater stability for the hydrates. Molecular simulations are used to understand and explain the increased stability with increasing pressure, by calculating the enthalpy and molecular structure of the phases.</P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>

WHAT A GIRL WANTS

Hu Yue 한국콘텐츠학회 2020 한국콘텐츠학회 ICCC 논문집 Vol.2020 No.11

Gas Hydrates Phase Equilibria and Formation from High Concentration NaCl Brines up to 200 MPa

Hu, Yue,Makogon, Taras Y.,Karanjkar, Prasad,Lee, Kun-Hong,Lee, Bo Ram,Sum, Amadeu K. American Chemical Society 2017 Journal of chemical and engineering data Vol.62 No.6

<P>Gas hydrate phase equilibrium and kinetics at high NaCl concentrations (near and at saturation in solution) and very high pressures (up to similar to 200 MPa) are investigated to study the interplay of hydrate formation and salt precipitation. Limited experimental data above 80 MPa exist for hydrate phase equilibrium in high salinity systems. This study reveals the unusual formation of gas hydrates under these extreme conditions of high salinity and very high pressure. In particular, the results demonstrate that hydrates can form from saturated salt solutions, and the formation of hydrates and salt precipitation are competing effects. It is determined that hydrates will remain in equilibrium with a saturated salt solution, with the amount of salt precipitation determined by the amount of hydrates formed. These data are essential fundamental data for gas hydrates applications in the oil and gas production flow assurance and seawater desalination.</P>

Phase equilibrium data of methane hydrates in mixed brine solutions

Hu, Yue,Lee, Bo Ram,Sum, Amadeu K. Elsevier 2017 Journal of natural gas science and engineering Vol.46 No.-

<P><B>Abstract</B></P> <P>Knowing the hydrate phase equilibria in brines is critically important to assess the risk of hydrate formation, especially for conditions involving high salinity and very high pressure, which are becoming more prevalent in oil/gas exploration and production. Hydrate phase equilibria data for mixed salt brines over a wide range of pressure is very limited in the open literature. Inorganic salts are thermodynamic hydrate inhibitors and are commonly present in produced water from oil/gas production. As such, this study reports methane hydrate phase equilibria in brines composed of mixed salts (NaCl, KCl, CaCl<SUB>2</SUB> and MgCl<SUB>2</SUB>) for total salt concentration up to 29.2 wt% and for pressures ranging from 20 to 200 MPa (2900 to 29,000 psia). Data under these conditions are the first reported and they add significant value in furthering knowledge of the phase space for hydrate formation. In addition, these data are used for the development and assessment of models to capture hydrate phase equilibria over a wide range of salt concentrations and pressures. At last, critical factors (such as pressure, salt species, and concentration) that influence the hydrate suppression temperature relative to the uninhibited (salt-free) systems are also investigated.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Methane hydrate phase equilibria in mixed salt brines were measured up to 200 MPa. </LI> <LI> Measured data were compared with predicted results from commonly used tools. </LI> <LI> Data provided information on the hydrate suppression temperature dependence on pressure. </LI> </UL> </P>

The Effects of Foreign Language Proficiency on Public Attitudes: Evidence From the Chinese-Speaking World

Yue Hu,Amy H. Liu 동아시아연구원 2020 Journal of East Asian Studies Vol.20 No.1

What explains public attitudes towards a former aggressor state? Conventional wisdom would suggest the prevalence of negative sentiments rooted in historical hatred. In this article we contend that when individuals are proficient in a foreign language—e.g. a lingua franca—they have an alternative channel through which they are exposed to positive narratives put forth by other parties regarding the former aggressor state. And as a result, their attitudes towards the former aggressor state are more positive than those held by their linguistically limited counterparts. To test our argument, we focus on public attitudes towards the Japanese in Mainland China, Singapore, and Taiwan—three Chinese-ethnic majority political units that experienced Japanese aggression leading up to and during World War II. Using survey data, we demonstrate that individuals who are proficient in the English language are much more likely to hold positive attitudes of the Japanese. These results are robust even when we consider whether some individuals are predisposed to being cosmopolitan; whether some individuals have more opportunities to learn English; and whether the linguistic effects are symptomatic of American soft power.

Anatomical Study of the Accessory Tendon of the Extensor Hallucis Longus Muscle and Its Clinical Application

Yue Li,Jing-Ying Zhang,Xin-Yue Zhao,Li-Ya Pan,De-Hao Jin,He-Xing Xu,Hu-Zhe Cui,Yan-Qun Liu,Xiang-Zheng Qin,Qingyuan Li 대한정형외과학회 2021 Clinics in Orthopedic Surgery Vol.13 No.2

Background: The accessory tendon of the extensor hallucis longus (ATEHL) muscle is a common abnormal structure, and its clinical significance remains debatable. In this study, we provide the incidence of the ATEHL and characterize its morphological types in Asian cadavers and investigate its clinical applications. Methods: The tendons from 50 adult cadaveric feet, fixed in 10% formalin, were analyzed. We measured the length and width of both the ATEHL and the extensor hallucis brevis (EHB). Results: All dissected specimens had an ATEHL. The first metatarsophalangeal joint was surrounded by an accessory tendon that inserted onto the joint capsule and the dorsal base of the proximal phalanx. We classified the ATEHL into 3 types based on their directions. Differences in ATEHL type based on sex were not statistically significant. Conclusions: We found an ATEHL in all cadaveric specimens in this study. We surmise that the ATEHL acts as an antagonist with the EHB when the toe is extending, which might help prevent the occurrence of hallux valgus deformity.

Gas hydrate formation from high concentration KCl brines at ultra-high pressures

Yue Hu,이건홍,이보람,Amadeu K. Sum 한국공업화학회 2017 Journal of Industrial and Engineering Chemistry Vol.50 No.-

The phase equilibria of methane hydrates were measured in high concentration KCl brines (up tosaturation concentration) at ultra-high pressures (up to 200 MPa). The results show the hydrateequilibrium boundary moves to lower temperature and higher pressure as the KCl concentrationincreased up to the saturation limit and the hydrate equilibrium is unchanged from the saturationconcentration for four-phase equilibrium. From the measurements at the saturation concentration, wealso determine the pressure effect on the solubility of KCl. The kinetic studies reveal hydrates form evenwith salt precipitated and hydrates and salt are competing solid precipitation under saturated conditions.

Gas hydrates phase equilibria for structure I and II hydrates with chloride salts at high salt concentrations and up to 200MPa

Hu, Yue,Makogon, Taras Y.,Karanjkar, Prasad,Lee, Kun-Hong,Lee, Bo Ram,Sum, Amadeu K. Elsevier 2018 The Journal of chemical thermodynamics Vol.117 No.-

<P><B>Abstract</B></P> <P>Gas hydrates phase equilibria for structure I and II hydrates with chloride salts (NaCl, CaCl<SUB>2</SUB>, KCl and MgCl<SUB>2</SUB>) were measured at high salt concentrations and up to 200MPa. The measured equilibrium data represent three-phase (Solution – Hydrate – Vapor) or four-phase (Solution – Hydrate – Salt precipitated – Vapor) equilibrium depending on the salt concentration. The hydrate phase boundary with salts was shifted to lower temperatures and higher pressures when the experimental system was below the salt saturation concentration, while the boundaries were unchanged at salt concentrations above saturation, corresponding to quadruple points. The experimental data were compared with hydrate equilibrium predictions calculated by commonly used predictive tools to assess the reliability of these tools for the brines and conditions considered. The comparison demonstrates that predictive tools exhibit large deviation to the measured data, especially at high pressures and high salinity conditions.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Gas hydrates phase equilibria with chloride salts were measured up to 200MPa. </LI> <LI> Predictions deviate from measured data at high salt concentration and high pressure. </LI> <LI> Measured data are valuable to test and improve hydrate predictive tools. </LI> </UL> </P>