Article
Engineering, Electrical & Electronic
Baoxing Duan, Lantian Xing, Yandong Wang, Yintang Yang
Summary: A novel CA-FBL LDMOS is proposed to reduce R-ON, R-SP and improve BV simultaneously. The conduction mechanism of CA-FBL LDMOS is to change the potential distribution of the gate semiconductor layer, forming an extended electron channel. This device demonstrates a significant reduction in R-ON, R-SP and an optimized bulk electric field distribution.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2022)
Article
Chemistry, Multidisciplinary
Luke Bhan, Cody L. Covington, Kalman Varga
Summary: This study proposes a laser-driven quantum electron ratchet nanodevice, which uses bubble-shaped nanodiode structures to induce plasma oscillation in the vertical direction and funnel electrons towards a sharp tip for net electron transport in the horizontal direction.
Article
Chemistry, Physical
Shaini Aluthgun Hewage, Jitendra Kewalramani, Jay N. Meegoda
Summary: The study found that the stability of nanobubbles in electrolyte solutions is influenced by different ion valence values, with variation in size and zeta potential depending on solution properties like pH and cation valency. High valency cations can neutralize or reverse bubble charge, while anions or co-ions have minimal effect. The calculated internal pressures of bubbles were unrealistically high, suggesting unique interfacial properties that require further investigation.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Nanoscience & Nanotechnology
Xinxue Wu, Chaolong Fang, Wangdong Xu, Dawei Zhang
Summary: Inspired by natural compound eyes, a curved artificial-compound-eye (cACE) photodetector is proposed and fabricated to enhance light-harvesting capability. The fabricated photodetector exhibits desirable geometric shape and improved photocurrent output, making it suitable for luminance sensing.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Thermodynamics
Ryota Kimura, Hideaki Teshima, Qin-Yi Li, Koji Takahashi
Summary: The behavior of surface nanobubbles upon heating, such as nucleation, growth, and disappearance, is influenced by the presence of underlying micropancakes and adsorbed layers. The nucleation sites of nanobubbles depend on the positions of micropancakes, and the size of micropancakes affects the gas transport between them and overlying nanobubbles. Strongly adsorbed gas layers attract dissolved gas molecules, leading to irreversible growth before and after heating.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2021)
Article
Chemistry, Physical
Ananda J. Jadhav, Mostafa Barigou
Summary: Bulk nanobubbles, with an average diameter of around 100 nm, form stable clusters in pure water and exhibit different stability in different media. The study reveals that bulk nanobubbles tend to behave similarly to solid nanoparticles in terms of agglomeration tendency, which has significant implications for our understanding of their behavior and stability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Kyuichi Yasui, Toru Tuziuti, Wataru Kanematsu
Summary: The experimental results analyze the adsorption behavior of bulk nanobubbles of different diameters in contact with hydrophobic polymer surfaces, explaining two mysteries and revealing the possibility of these nanobubbles transforming into surface nanobubbles with a diameter of about 1 µm.
Article
Chemistry, Multidisciplinary
Rong Zhang, Antimo Marrazzo, Matthieu Jean Verstraete, Nicola Marzari, Thibault Daniel Pierre Sohier
Summary: A new 2D monolayer material called lutetium oxide iodide (LuIO) with strong Rashba effects has been proposed, which can be used for controlling spin channel selection in devices. The study characterizes and simulates the interplay of doping and spin channel selection, showing specific gate-operation guidelines for devices based on spin-layer locking.
Article
Chemistry, Multidisciplinary
Ananda J. Jadhav, Mostafa Barigou
Summary: The paper focuses on providing indirect evidence for the existence of bulk nanobubbles using various physical and chemical techniques, which require good experimental skills, sound protocols, and reliable equipment. Although no single piece of direct evidence is conclusive, combining multiple results provides strong support for the existence of bulk nanobubbles.
Article
Chemistry, Physical
Shan Xue, Yihan Zhang, Taha Marhaba, Wen Zhang
Summary: This study investigates the aeration kinetics and dissolution behavior of oxygen nanobubbles (NBs) and their dependence on bubble size. The results show that larger NBs have higher oxygen mass transfer rates and equilibrium dissolution levels. The dissolution kinetics of oxygen NBs are influenced by the initial bubble size, with smaller bubbles dissolving faster and larger bubbles leading to higher equilibrium dissolution levels. Additionally, oxygen NBs determine the dissolved oxygen levels in water.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Plant Sciences
Stephen Ingram, Yann Salmon, Anna Lintunen, Teemu Holtta, Timo Vesala, Hanna Vehkamaeki
Summary: Air seeded nanobubbles have been observed within tree sap under negative pressure, with some potentially embolizing vessels in extreme circumstances. Calculations of surface tension for biologically relevant lipids using molecular dynamics simulations suggest that glycolipids and phospholipids exhibit different resistance to expansion. Incorporating these results into Classical Nucleation Theory framework, it is predicted that glycolipid coated nanobubbles have a metastable radius of approximately 35 nm, with embolism being unlikely when the external pressure is less negative than -1.5 MPa.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Biochemical Research Methods
Pavitra Sokke Rudraiah, Hamootal Duadi, Dror Fixler
Summary: This study investigated tattoo ink using diffuse reflectance experiments and the crossover point method, which were also applied to ex vivo porcine skin. The results showed distinguishable differences in the diffuse reflectance profiles between tattooed and non-tattooed skin at different wavelengths, and the crossover point method accurately located the tattoo ink.
JOURNAL OF BIOPHOTONICS
(2022)
Article
Engineering, Electrical & Electronic
Wangran Wu, Helong Geng, Feng Lin, Shuxian Chen, Ruibin Cao, Chaoqi Xu, Guipeng Sun, Siyang Liu, Weifeng Sun
Summary: In this study, the strain SiN CESL was introduced to enhance the performance of nLDMOSFET by increasing output current, transconductance, and breakdown voltage. The enhanced performance was attributed to the tensile strain introduced by the strain SiN CESL, which effectively reduced specific ON-resistance and improved BV of the nLDMOSFET.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2021)
Article
Chemistry, Physical
Angelica Lozano-Lunar, Rocio Otero, Jose Ignacio Alvarez, Jose Ramon Jimenez, Jose Maria Fernandez-Rdoriguez
Summary: This research focuses on immobilising lead-contaminated waste using the Double Barrier Technique. The study investigates the treatment of lead-contaminated water by incorporating Layer Double Hydroxides into cement monoliths. The results show that the presence of Layer Double Hydroxides counteracts the detrimental effect of lead on cementitious materials, reducing the compressive strength to less than 5 MPa.
APPLIED CLAY SCIENCE
(2023)
Article
Electrochemistry
Jun Huang
Summary: This study presents a field theoretic derivation for the free energy of electrolyte solution, introducing a reference system to describe non-electrostatic interactions between charged particles. By combining classical and quantum mechanical parts, a hybrid density-potential functional for the electric double layer grand canonical potential is obtained. Numerical implementation demonstrates the model's effectiveness, particularly showing oscillating density of counterions near the metal surface when using the FMT for the reference system.
ELECTROCHIMICA ACTA
(2021)
Article
Engineering, Environmental
Jay N. Meegoda, Janitha H. Batagoda, Shaini Aluthgun-Hewage
JOURNAL OF ENVIRONMENTAL ENGINEERING AND SCIENCE
(2017)
Article
Engineering, Environmental
Janitha Hewa Batagoda, Shaini Dailsha Aluthgun Hewage, Jay N. Meegoda
JOURNAL OF ENVIRONMENTAL ENGINEERING AND SCIENCE
(2019)
Article
Engineering, Environmental
Janitha Hewa Batagoda, Shaini Dilsha Aluthgun Hewage, Jay N. Meegoda
JOURNAL OF ENVIRONMENTAL ENGINEERING AND SCIENCE
(2019)
Article
Chemistry, Physical
Shaini Aluthgun Hewage, Jitendra Kewalramani, Jay N. Meegoda
Summary: The study found that the stability of nanobubbles in electrolyte solutions is influenced by different ion valence values, with variation in size and zeta potential depending on solution properties like pH and cation valency. High valency cations can neutralize or reverse bubble charge, while anions or co-ions have minimal effect. The calculated internal pressures of bubbles were unrealistically high, suggesting unique interfacial properties that require further investigation.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Environmental Sciences
Shaini Aluthgun Hewage, Janitha H. Batagoda, Jay N. Meegoda
Summary: The research evaluates an in-situ sediment remediation method using ultrasound and ozone nanobubbles to remove organic and inorganic chemicals in contaminated sediments, showing high efficiency. Removal efficiencies for samples with maximum initial concentration of 4211 mg/kg Cr and 1875 mg/kg p-terphenyl are 71% and 60% respectively.
ENVIRONMENTAL POLLUTION
(2021)
Article
Chemistry, Physical
Shaini Aluthgun Hewage, Jay N. Meegoda
Summary: The long-term stability of nanobubbles with high internal gas pressure is a puzzling question for researchers. Molecular Dynamics simulation was used to evaluate the performance of an oxygen nanobubble with high gas density. Results show that high initial gas concentration and density contribute to a more stable bubble condition. However, higher temperatures lead to faster gas diffusion and unstable internal pressure.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Engineering, Geological
Chenchen Huang, Cheng Zhu, Yifei Ma, Shaini Aluthgun Hewage
Summary: This study evaluates the influence of Freeze-Thaw Cycles (FTCs) on the mechanical properties of rock using the Discrete Element Method (DEM). A new algorithm is developed to better represent the saturated rock samples in the DEM model. The results show that FTCs deteriorate the uniaxial compressive strength (UCS) and Young's modulus of rock specimens. The study also explores the effects of porosity and initial UCS on the decay constant, which reflects the freeze-thaw resistance of rock.
ROCK MECHANICS AND ROCK ENGINEERING
(2022)
Article
Engineering, Civil
Shaini Aluthgun Hewage, Kaniz Roksana, Chao Sheng Tang, Zhuang Zhuo, Cheng Zhu
Summary: This study investigates the influence of wood biochar dosages on surface cracking under freeze-thaw cycles on clayey soils and explores the mechanism through image analysis and water evaporation. The results show that increased dosage of biochar reduces crack parameters and crack propagation rate, while also decreasing water evaporation rate. The final crack patterns are found to be associated with the initial ice crystal patterns.
TRANSPORTATION RESEARCH RECORD
(2023)
Article
Environmental Sciences
Bruno Bezerra de Souza, Shaini Aluthgun Hewage, Jitendra A. Kewalramani, Adri Ct van Duin, Jay N. Meegoda
Summary: This work provides a computational explanation for the destruction of PFAS in water by ultrasound. Simulation results showed that over 98% of PFAS degradation can occur at 5000K in a water vapor phase, replicating the observed micro/nano bubbles implosion and PFAS destruction during ultrasound application.
ENVIRONMENTAL POLLUTION
(2023)
Article
Engineering, Environmental
Shaini Aluthgun Hewage, Janitha H. Batagoda, Jay N. Meegoda
ENVIRONMENTAL ENGINEERING SCIENCE
(2020)
Proceedings Paper
Green & Sustainable Science & Technology
Janitha Hewa Batagoda, Jay N. Meegoda, Shaini Aluthgun Hewage
WORLD ENVIRONMENTAL AND WATER RESOURCES CONGRESS 2018: GROUNDWATER, SUSTAINABILITY, AND HYDRO-CLIMATE/CLIMATE CHANGE
(2018)
Article
Engineering, Environmental
Jay N. Meegoda, Shaini Aluthgun Hewage, Janitha H. Batagoda
ENVIRONMENTAL ENGINEERING SCIENCE
(2018)
Meeting Abstract
Chemistry, Multidisciplinary
Janitha Hewa Batagoda, Jay Meegoda, Shaini Aluthgun Hewage
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
(2018)