Article
Engineering, Chemical
Wen-Cheng Gong, Nicolas Jidenko, Yang-Rei Li, Thi-Cuc Le, Jean-Pascal Borra, Chuen-Jinn Tsai
Summary: This study developed and tested a 30 L/min PM0.1 non-bouncing impactor (PM0.1 NBI) for measuring ultrafine particle (UFP) mass concentration. The PM0.1 NBI demonstrated better performance than the existing NCTU micro-orifice cascade impactor (NMCI) in collecting solid particles, especially for particles larger than 300 nm. Field tests showed close UFP mass concentrations between the PM0.1 NBI sampler and the reference NMCI, indicating the potential use of the PM0.1 NBI for accurate UFP measurement.
JOURNAL OF AEROSOL SCIENCE
(2023)
Article
Acoustics
Furkan Terzioglu, Jem Athing Rongong, Charles Eric Lord
Summary: This paper presents research on the effect of particle shape on energy dissipation in a granular damper. The findings show that non-spherical particles significantly change the vibration amplitude at which granular damping is maximised. The study also reveals a correlation between shear properties of the granular medium and the amplitude at which optimum energy dissipation occurs.
JOURNAL OF SOUND AND VIBRATION
(2023)
Article
Astronomy & Astrophysics
A. Alonso-Serrano, M. Liska
Summary: By heuristically deriving the Hawking temperature and Bekenstein entropy from the existence of a minimal resolvable area, we found quantum gravity corrections that are qualitatively consistent with results obtained by other methods. The size of the minimal area is constrained by semiclassical black hole physics, particularly by the entropy content of Hawking radiation. The derivation method is also applied to finding the Unruh temperature associated with causal diamonds and establishing a new relation between this temperature and the entropy of the causal diamond's horizon.
Article
Physics, Multidisciplinary
Geng Li, Jin-Fu Chen, C. P. Sun, Hui Dong
Summary: Shortcuts to isothermality are a strategy for driving a system to its equilibrium states and evaluating the impact of control. Finding the optimal scheme to minimize energy cost is crucial, and it has been proven to be equivalent to finding the geodesic path in the space of control parameters. This equivalence provides a systematic and universal approach to finding optimal control for reducing energy cost.
PHYSICAL REVIEW LETTERS
(2022)
Article
Physics, Fluids & Plasmas
Felipe Augusto O. Silveira, Sidiney G. Alves, Edson D. Leonel, Denis G. Ladeira
Summary: The study examines the dynamical properties of a charged particle colliding with an oscillating platform in a nonhomogeneous electric field, showcasing regular dynamics or chaotic behavior based on parameter values and initial conditions. Localization and stability of fixed points are carefully analyzed, with investigation into the chaotic sea's average properties using a scaling approach. It is shown that the system belongs to the same universality class as the Fermi-Ulam model.
Article
Chemistry, Physical
Yin Guan, Jingwei Fu, Shuang Wu, Chuanpeng Yu, Xiyang Chen, Cheng Zhou
Summary: This paper investigates the dynamical behaviors of water drop impacting and bouncing on an inclined hydrophobic surface with a numerical method. Several key impacting factors are examined, and scaling laws of the nondimensionalized maximum spreading diameters are discovered, providing a useful supplement to the understanding of post-impacting drop behaviors on an inclined hydrophobic surface.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Automation & Control Systems
Fabian Winkel, Peter Scholz, Oliver Wallscheid, Joachim Boecker
Summary: This paper presents a control system and optimization algorithm to reduce the contact bouncing of electromechanical relays. The kinetic energy of internal relay components is reduced by suspending acceleration during each switch cycle. The proposed algorithm effectively reduces the bouncing and demonstrates the capability to adapt to changing environmental circumstances.
IEEE TRANSACTIONS ON AUTOMATION SCIENCE AND ENGINEERING
(2023)
Article
Physics, Fluids & Plasmas
Jin-Fu Ma, Jin-Fu Chen, C. P. Sun, Hui Dong
Summary: Landauer's principle imposes a fundamental limit on the energy cost of perfectly initializing a classical bit, but in practical operations, the finite operation time leads to an increase in energy cost. Specifically, when initializing the bit, the smaller the error, the higher the energy cost. A finite-time isothermal process can be used for bit initialization, and an optimal protocol to minimize the energy cost is proposed.
Review
Chemistry, Multidisciplinary
Xing Han, Jiaqian Li, Xin Tang, Wei Li, Haibo Zhao, Ling Yang, Liqiu Wang
Summary: Droplet impact is a common phenomenon in nature, daily life, and industrial processes, and it is crucial to control the outcomes for different applications. Droplet bouncing, as a special outcome, preserves the droplet shape and minimizes energy loss, making it beneficial in various applications. This review provides a comprehensive understanding of millimeter-sized droplet bouncing on solid surfaces and liquid pools, summarizing regulation methods, current applications, and proposing potential directions for future research.
Review
Chemistry, Physical
Xingjian Yu, Yu Zhang, Run Hu, Xiaobing Luo
Summary: The dynamics of water droplet bouncing is highly dependent on liquid properties, surface characteristics, and ambient pressure. Achieving no droplet/surface contact, which is crucial for droplet bouncing, can be realized through various methods such as lowering the Weber number of droplet, designing hydrophobic surfaces, actively maintaining the air/vapor film, vibrating the liquid bath, and applying electric/magnetic/pressure fields.
Article
Engineering, Marine
Han Cheng, Yong Liu, Fu-Ren Ming, Peng-Nan Sun
Summary: This paper studies the bouncing and coalescing behavior of two bubbles rising side by side in a fluid, using a multi-phase smoothed particle hydrodynamics (SPH) model. The numerical simulation is validated through various testing cases and the effects of viscous forces and surface tensions on bubble interaction are considered.
Article
Computer Science, Interdisciplinary Applications
Jiayi Zhao, Shuo Chen, Kaixuan Zhang, Damin Cao, Yang Liu
Summary: This study investigates the bouncing dynamics of droplets on a surface with a macro-textured ridge by numerical simulation and theoretical analysis. The bouncing dynamics can be classified into jug-like behavior with asymmetric retracting velocity and wing-like behavior with rotation of the sub-droplets. The angular velocity of droplets during rebounding plays a crucial role in determining the contact time.
COMPUTERS & FLUIDS
(2022)
Article
Multidisciplinary Sciences
Giedrius Sasnauskas, Giedre Tamulaitiene, Gytis Druteika, Arturo Carabias, Arunas Silanskas, Darius Kazlauskas, Ceslovas Venclovas, Guillermo Montoya, Tautvydas Karvelis, Virginijus Siksnys
Summary: The TnpB proteins of the IS200/IS605 transposon family have been discovered as the smallest RNA-guided nucleases capable of targeted genome editing in eukaryotic cells. They are likely predecessors of Cas12 nucleases, which are widely used for targeted genome manipulation. This study presents the cryogenic-electron microscopy structures of the Deinococcus radiodurans TnpB-reRNA complex, revealing the basic architecture and molecular mechanism of TnpB nuclease for DNA target recognition and cleavage.
Article
Chemistry, Analytical
Dan Yuan, Sheng Yan, Jun Zhang, Rosanne M. Guijt, Qianbin Zhao, Weihua Li
Summary: This study introduces a novel method to separate shape-synchronized cyanobacterial cell populations using viscoelastic microfluidics, which opens up a new field of application in microfluidics technology.
ANALYTICAL CHEMISTRY
(2021)
Article
Engineering, Civil
Haoqi Wang, Zhuoran Zhang, Jun Chen
Summary: This study proposes an effective method for quantitatively considering the interaction effect between crowd and structure, predicting the frequency and damping ratio of the coupled system, and calculating the structural responses. The method is validated through experiments on crowd bouncing and provides reasonable predictions of the structural responses.
INTERNATIONAL JOURNAL OF STRUCTURAL STABILITY AND DYNAMICS
(2022)
Article
Astronomy & Astrophysics
Kourosh Nozari, Somayeh Shafizadeh, Narges Rashidi
ASTROPHYSICS AND SPACE SCIENCE
(2018)
Article
Physics, Multidisciplinary
Fateme Rajabi, Kourosh Nozari
CANADIAN JOURNAL OF PHYSICS
(2019)
Article
Physics, Particles & Fields
K. Salahshoor, K. Nozari
EUROPEAN PHYSICAL JOURNAL C
(2018)
Article
Astronomy & Astrophysics
Mohsen Khodadi, Kourosh Nozari
GENERAL RELATIVITY AND GRAVITATION
(2018)
Article
Physics, Mathematical
Kourosh Nozari, Naser Sadeghnezhad
INTERNATIONAL JOURNAL OF GEOMETRIC METHODS IN MODERN PHYSICS
(2019)
Article
Physics, Particles & Fields
M. Roushan, K. Nozari
EUROPEAN PHYSICAL JOURNAL C
(2019)
Article
Astronomy & Astrophysics
K. Nozari, P. Dehghani
Article
Physics, Multidisciplinary
Mohsen Khodadi, Kourosh Nozari, Anha Bhat, Sina Mohsenian
PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS
(2019)
Article
Physics, Multidisciplinary
Mohsen Khodadi, Kourosh Nozari
COMMUNICATIONS IN THEORETICAL PHYSICS
(2019)
Article
Physics, Particles & Fields
Kourosh Nozari, M. Hajebrahimi, M. Khodadi, A. Etemadi
EUROPEAN PHYSICAL JOURNAL C
(2019)
Article
Physics, Mathematical
S. Saghafi, K. Nozari, A. D. Kamali
INTERNATIONAL JOURNAL OF GEOMETRIC METHODS IN MODERN PHYSICS
(2019)
Article
Astronomy & Astrophysics
R. Shojaee, K. Nozari, F. Darabi
INTERNATIONAL JOURNAL OF MODERN PHYSICS D
(2020)
Article
Physics, Particles & Fields
M. Roushan, K. Nozari
EUROPEAN PHYSICAL JOURNAL C
(2020)
Article
Astronomy & Astrophysics
R. Shojaee, K. Nozari, F. Darabi
Summary: In this study, we investigated cosmological inflation in a Galileon inflationary model with the E-model potential to identify possible alpha-attractors. By analyzing the evolution of perturbations and considering the reheating phase post-inflation, we found universal values for the scalar spectral index and tensor-to-scalar ratio. Comparing our results with Planck data, we discovered constraints on the model's parameter space, including the potential for a longer reheating phase and observational viable values of ns associated with a larger temperature range.
INTERNATIONAL JOURNAL OF MODERN PHYSICS D
(2021)
Article
Astronomy & Astrophysics
Kourosh Nozari, Narges Rashidi
ASTROPHYSICAL JOURNAL
(2019)