Article
Physics, Fluids & Plasmas
Yuto Hosaka, Shigeyuki Komura, David Andelman
Summary: We discuss the linear hydrodynamic response of a two-dimensional active chiral compressible fluid with odd viscosity, resulting in the odd viscosity-dependent mobility tensor. Furthermore, we demonstrate that a finite-size disk moving laterally in the 2D fluid experiences a nondissipative lift force in addition to the dissipative drag force.
Article
Polymer Science
Shantiram Nepal, Banani Das, Malay Kumar Das, Madhumita Das Sarkar, Magdalena Urbanska, Michal Czerwinski
Summary: The behavior of two newly formulated bi-component orthoconic antiferroelectric liquid crystalline systems has been studied in this research. The results demonstrate that these advanced mixtures possess high spontaneous polarization and fast relaxation times at room temperature, and exhibit superior dielectric properties with a wide range of potential applications.
Article
Engineering, Multidisciplinary
Wenjie Yu, Guancheng Shen, Yun Zhang, Dequn Li, Huamin Zhou
Summary: A proposed molecular configuration evolution model for polymer melts can accurately describe the rheological properties, especially at high shear rates. The predicted results in rotary Couette flow agree well with the measured dielectric anisotropy results.
APPLIED MATHEMATICAL MODELLING
(2021)
Article
Chemistry, Multidisciplinary
Praveen Malik, Garima Chauhan, Pankaj Kumar, Akash Deep
Summary: This study investigates the effect of polymer concentration on the physical properties of polymer-stabilised ferroelectric liquid crystal composite. The results show that the concentration of polymer reduces the spontaneous polarisation and dielectric strength, while increasing the rotational viscosity and relaxation frequency.
Article
Engineering, Chemical
Nantina Moonprasith, Muhammad Shahrulnizam Nasri, Riza Asmaa Saari, Panitha Phulkerd, Masayuki Yamaguchi
Summary: The addition of a low-viscosity dispersion with high interfacial tension significantly reduces shear viscosity, while viscosity decrease is barely detected when the viscosity of the dispersed phase is similar to the continuous phase. Interfacial tension plays a crucial role in shear viscosity.
POLYMER ENGINEERING AND SCIENCE
(2021)
Article
Physics, Fluids & Plasmas
Masayuki Uranagase, Shuji Ogata
Summary: A nonequilibrium molecular dynamics method is proposed to produce nonequilibrium states flexibly by constraining coarse-grained physical quantities at virtual points. This method can be applied to constrain coarse-grained kinetic energy and produce a nonuniform temperature field in the system. The temperature profile at a nonequilibrium steady state depends on the method for constructing the shape function matrix.
Article
Computer Science, Interdisciplinary Applications
Oliver Weismantel, Aikaterini A. Galata, Morteza Sadeghi, Achim Kroeger, Martin Kroger
Summary: The tool is an efficient code generator capable of generating various types of chain molecules with different properties. It provides multiple formats for configuration files and has a user-friendly interface with animated results.
COMPUTER PHYSICS COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Angelos G. Kalampounias
Summary: This study investigates the rotational isomerism exhibited by acrolein and crotonaldehyde unsaturated aldehydes using ultrasonic relaxation spectroscopy. The results show that an increase in temperature leads to an increase in the frequency of rotational isomerism but a decrease in relaxation amplitude. Quantum mechanical calculations confirm the relationship between the relaxation process and rotational isomerism, and evaluate the energy of the optimized isomeric structures of the aldehyde molecules. The temperature dependence of the acoustic parameters provides insights into the experimental activation energy and energy difference between isomeric forms of both aldehydes.
Article
Construction & Building Technology
Hanqi Liu, Waleed Zeiada, Ghazi G. Al-Khateeb, Abdallah Shanableh, Mufid Samarai
Summary: The study aimed to develop an improved test method for determining the equiviscous temperature (EVT) of asphalt binders, identified deficiencies in the test method in CEN/TS 15324 (2008) and proposed a new test method based on zero shear viscosity (ZSV).
INTERNATIONAL JOURNAL OF PAVEMENT ENGINEERING
(2022)
Article
Chemistry, Analytical
Yeongseok Jang, Hwabok Wee, Jonghyun Oh, Jinmu Jung
Summary: This study presents a method and equation for measuring the viscosity of trace amounts of prepolymer fluids in microdroplets and validates the accuracy of the standard viscosity calculation formula. The results of this study are expected to be highly useful for hydrogel tuning in biomedical and tissue regeneration fields.
Article
Multidisciplinary Sciences
Mythreyi Unni, Shehaab Savliwala, Brittany D. Partain, Lorena Maldonado-Camargo, Qingteng Zhang, Suresh Narayanan, Eric M. Dufresne, Jan Ilavsky, Pawel Grybos, Anna Koziol, Piotr Maj, Robert Szczygiel, Kyle D. Allen, Carlos M. Rinaldi-Ramos
Summary: The diffusion behavior of polymer-coated inorganic nanoparticles in synovial fluid can be well described by the Stokes-Einstein relationship, with an effective medium viscosity much smaller than the macroscopic low shear viscosity of the fluid. The additional viscous dissipation in the effective medium viscosity is attributed to the presence of polymer segments, shedding light on the diffusive behavior of these nanoparticles in complex and crowded biological environments such as the joint.
Article
Polymer Science
Zhitao Yang, Jiajing Zeng, Zhao Yang, Yizhang Tong, Yangen Lai, Xianwu Cao
Summary: This paper investigates the production of LCP film using a blow molding device and the effect of annular shear flow on its orientation structure and mechanical properties. The results show the formation of self-reinforcing fibers and fiber cross structure in the LCP film under the synergistic effect of annular shear flow field and axial extrusion. By adjusting the rotational speed, LCP film with uniform orientation degree and mechanical properties can be obtained.
Article
Engineering, Multidisciplinary
Bo Hu, Mingjun Pang
Summary: The study used the volume of fluid method combined with the adaptive grid method to investigate the influence of shear-thinning liquid viscosity ratio on bubble shape, rise velocity, and apparent viscosity. The results showed that bubble shape and deformation were strongly related to the viscosity ratio, and the bubble could exhibit stable or unstable states depending on the values of rheological index and characteristic time. Additionally, a viscosity blind region was observed behind the bubble under certain conditions, which tended to reduce the bubble rise velocity at large time.
APPLIED MATHEMATICAL MODELLING
(2022)
Article
Multidisciplinary Sciences
Hang Zhou, Yongli Ma
Summary: Recent experiments on sound waves in a unitary Fermi gas have revealed various transport properties of strongly interacting fermions. The study focused on the temperature regimes near and below the superfluid critical temperature Tc in the BCS-BEC crossover, presenting a Kubo-based microscopic calculation of thermal conductivity κ. The study found that the contributions of fermionic quasiparticles to thermal transport change with temperature, with κ dropping upon crossing the pseudogap temperature T and exhibiting different temperature dependence below Tc.
SCIENTIFIC REPORTS
(2021)
Article
Construction & Building Technology
Ali Almusawi, Burak Sengoz, Ali Topal
Summary: This paper explores alternative methods for estimating the mixing and compaction temperatures of warm mix asphalt and polymer modified bitumen mixtures, aiming to overcome potential damages caused by implementing the classic Equiviscous procedure. By evaluating different methods, the determined mixing and compaction temperatures were used to measure the mechanical properties of asphalt mixtures.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
