Article
Engineering, Geological
Huaxiang Yan, Haijian Xie, Hamid Rajabi, Xiting Gu, Yun Chen
Summary: This study proposes an analytical solution for a one-dimensional and steady-state model to analyze the diffusion of VOCs within landfill capillary cover systems under unsaturated water flow and stable conditions. The research examines the impact of evaporation rate and clay thickness on coupled water flow and VOCs diffusion. The findings reveal the importance of considering unsaturated water flow in assessing VOC emissions in the cover system.
INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS
(2023)
Article
Thermodynamics
Qinzhuo Liao, Gensheng Li, Shouceng Tian, Xianzhi Song, Gang Lei, Xu Liu, Weiqing Chen, Shirish Patil
Summary: Upscaling in petroleum reservoir simulation captures the dynamic behavior of fine-scale models at a coarser scale. This study presents an analytical approach for computing relative permeability, which is more accurate and efficient compared to numerical simulation.
Article
Engineering, Electrical & Electronic
Meng Li, Yiping Luo, Jinghan He, Yongjie Zhang, A. P. Sakis Meliopoulos
Summary: This study proposes a new method for calculating the steady-state AC and DC short-circuit currents in modular multilevel converters (MMCs). By analyzing the relationship between the arm current and the short-circuit current in different modes and dividing the arm current into multiple sub-intervals, analytical expressions for the steady-state fault current are derived. The derived expressions are optimized considering the characteristics of AC grids, making them applicable for various scenarios. These analytical expressions can guide the rating and tuning of protection devices and power equipment.
IEEE TRANSACTIONS ON POWER DELIVERY
(2022)
Article
Computer Science, Artificial Intelligence
Herbert Jodlbauer, Shailesh Tripathi
Summary: This article examines the influence of variables in complex social, economic, and technological systems using different criteria such as active and passive sums. Three methods, DEMATEL, cross impact analysis, and Page rank, are employed to select influential and dependent variables. The study compares these methods and explores the mathematical relationships between different models, providing insights for decision-making in business and marketing research.
EXPERT SYSTEMS WITH APPLICATIONS
(2023)
Article
Mechanics
M. Ungarish
Summary: Previous studies have extended Benjamin's theory for an inertial steady-state gravity current to a linearly stratified ambient. The existing closure forms do not work well for symmetric intrusions, highlighting the need for more experiments and simulations for further clarification and improvement.
JOURNAL OF FLUID MECHANICS
(2021)
Article
Multidisciplinary Sciences
Vladimir Lukoshkin, Evgeny Sedov, Vladimir Kalevich, Z. Hatzopoulos, P. G. Savvidis, Alexey Kavokin
Summary: By using a cylindrical micropillar with embedded quantum wells in a semiconductor microcavity, a trapping potential is formed which supports concentric ring exciton polariton condensates under a non-resonant laser pump. The external control of the potential's symmetry is achieved through manipulation by its pump-induced component. In this study, we demonstrate the excitation of concentric ring polariton current states with predetermined vorticity and observe the dynamic change of the polariton condensate's vorticity during observation, resulting in fork-like dislocations on the time-averaged interferogram coexisting with azimuthally homogeneous photoluminescence distribution in the micropillar.
SCIENTIFIC REPORTS
(2023)
Article
Multidisciplinary Sciences
Vladimir Lukoshkin, Evgeny Sedov, Vladimir Kalevich, Z. Hatzopoulos, P. G. Savvidis, Alexey Kavokin
Summary: Concentric ring exciton polariton condensates are formed under non-resonant laser pump in an annular trapping potential. The symmetry of the potential can be controlled externally by manipulating its pump-induced component. By using interferometry measurements with a spherical reference wave, we can track the concentric ring polariton current states with predetermined vorticity, and observe the dynamic change of vorticity in the polariton condensate.
SCIENTIFIC REPORTS
(2023)
Article
Physics, Multidisciplinary
Wen-Wei Ye, Lin-Cong Chen, Zi Yuan, Jia-Min Qian, Jian-Qiao Sun
Summary: In this study, an effective approximate semi-analytical method is proposed for the steady-state response of multi-dimensional quasi-Hamiltonian systems. The trial solution of the reduced Fokker-Plank-Kolmogorov (FPK) equation is obtained using radial basis function (RBF) neural networks, and a loss function is constructed by combining random sampling technique. The unknown weight coefficients are optimized by minimizing the loss function through the Lagrange multiplier method.
Article
Engineering, Electrical & Electronic
Vinicius Albernaz Lacerda, Renato Machado Monaro, David Campos-Gaona, Rafael Pena-Alzola, Denis Vinicius Coury
Summary: This study proposes an approximated analytical model for PG faults in half-bridge MMCs, which can effectively calculate faults and fault current, and separate the system dynamics in different resonant frequencies to accurately interpret the phenomena.
IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS
(2021)
Article
Thermodynamics
Nicolas Blet, Denis Maillet
Summary: This article proposes a thermohydraulic analytical model of a capillary cylindrical heat pipe based on thermal quadrupoles and Fourier integral transforms, providing thermal fields and fluid profiles under different boundary conditions, with implications for heat pipe design and optimization.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2022)
Article
Thermodynamics
Lixun Chi, Huai Su, Enrico Zio, Meysam Qadrdan, Jing Zhou, Li Zhang, Lin Fan, Zhaoming Yang, Fei Xie, Lili Zuo, Jinjun Zhang
Summary: This paper proposes a systematic framework to analyze the reliability of energy supply in Integrated Energy Systems (IES) by considering the dynamics of IES and the inter-relationships among uncertainties. By establishing a quasi-steady-state model and a model that combines the statistical structure with the machine learning method, the reliability of IES is evaluated and validated through case studies.
Article
Mathematics, Applied
Yisi Liu, Xiaojun Wang, Yunlong Li
Summary: This paper introduces an improved Bayesian collocation method for steady-state response analysis of structural dynamic systems, which uses a bidirectional global optimization process and Gaussian process surrogate model to improve efficiency and accuracy of nonlinear interval analysis.
APPLIED MATHEMATICS AND COMPUTATION
(2021)
Article
Physics, Multidisciplinary
F. H. Kamin, Z. Abuali, H. Ness, S. Salimi
Summary: In this study, the availability and maximum extractable work of quantum batteries (QBs) in the presence of charge and/or heat steady-state currents were analyzed. QBs were modeled as non-interacting open quantum systems strongly coupled to two thermal and particle reservoirs using non-equilibrium Green's function theory. It was found that the battery can be charged significantly by a steady-state charge current compared to a heat current, especially in an off-resonant transport regime. This allows for reliable assessment of the performance of QBs in the high bias-charging regime.
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
(2023)
Article
Thermodynamics
Catarina G. dos Santos, Julia P. Ruivo, Leticia B. Gasparini, Maria Thereza de M. G. Rosa, Darci Odloak, Miriam Tvrzska de Gouvea
Summary: This paper proposes a rigorous model for predicting the operation of an air cooled chiller in a large office building. It also presents simple correlations for predicting heat exchange coefficients and pressure drops. The rigorous model is shown to accurately predict the operation of the chiller and optimize energy consumption. The importance of considering evaporator pressure drop is emphasized.
CASE STUDIES IN THERMAL ENGINEERING
(2022)
Article
Energy & Fuels
Ali Saberi, Mehdi Niroomand, Behzad Mirzaeian Dehkordi
Summary: This paper proposes a P&O MPPT algorithm for PV systems, which uses variable step size and the average value of the last three duty cycle to find MPP quickly and accurately. It also reduces deviation using the direction of the current when the irradiance changes. Additional modules are attached to the original P&O algorithm to change the step size. The proposed algorithm achieves an overall efficiency of 98.54% in simulations and practical experiments.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2023)
Article
Chemistry, Physical
Barry T. Pickup, Patrick W. Fowler, Martha Borg, Irene Sciriha
JOURNAL OF CHEMICAL PHYSICS
(2015)
Article
Chemistry, Physical
Barry T. Pickup, Patrick W. Fowler, Irene Sciriha
JOURNAL OF CHEMICAL PHYSICS
(2016)
Article
Chemistry, Physical
Patrick W. Fowler, Irene Sciriha, Martha Borg, Victoria E. Seville, Barry T. Pickup
JOURNAL OF CHEMICAL PHYSICS
(2017)
Article
Chemistry, Physical
P. W. Fowler, B. T. Pickup, T. Z. Todorova, R. De Los Reyes, I. Sciriha
CHEMICAL PHYSICS LETTERS
(2013)
Article
Chemistry, Physical
P. W. Fowler, B. T. Pickup, T. Z. Todorova, Martha Borg, Irene Sciriha
JOURNAL OF CHEMICAL PHYSICS
(2014)
Article
Chemistry, Organic
Andrew J. Ross, Frank Dreiocker, Mathias Schaefer, Jos Oomens, Anthony J. H. M. Meijer, Barry T. Pickup, Richard F. W. Jackson
JOURNAL OF ORGANIC CHEMISTRY
(2011)
Article
Chemistry, Physical
Ahmad R. Massah, Frank Dreiocker, Richard F. W. Jackson, Barry T. Pickup, Jos Oomens, Anthony J. H. M. Meijer, Mathias Schaefer
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2011)
Article
Chemistry, Multidisciplinary
Patrick W. Fowler, Barry T. Pickup, Tsanka Z. Todorova
PURE AND APPLIED CHEMISTRY
(2011)
Article
Mathematics, Applied
Irene Sciriha, Mark Debono, Martha Borg, Patrick W. Fowler, Barry T. Pickup
ARS MATHEMATICA CONTEMPORANEA
(2013)
Article
Chemistry, Physical
Patrick W. Fowler, Barry T. Pickup
JOURNAL OF CHEMICAL PHYSICS
(2019)
Article
Chemistry, Physical
Barry T. Pickup, Patrick W. Fowler
JOURNAL OF PHYSICAL CHEMISTRY A
(2020)
Article
Chemistry, Multidisciplinary
Patrick W. Fowler, Barry T. Pickup
Summary: A fully analytical model for ballistic conduction in a multi-lead device is presented, based on a pi-conjugated carbon framework and specifying transmission in terms of combinations of structural polynomials. The model allows insight into many-lead devices through constituent two-lead devices, structural polynomials, molecular orbital channels, and selection rules for active and inert leads and orbitals. In the wide-band limit, transmission is expressed in terms of characteristic polynomials of vertex-deleted graphs, and complete symmetric devices (CSD) and complete bipartite symmetric devices (CBSD) are defined and solved analytically as limiting cases of maximum connection.
APPLIED SCIENCES-BASEL
(2021)
Article
Biochemistry & Molecular Biology
Mehul V. Makwana, Cleide dos Santos Souza, Barry T. Pickup, Mark J. Thompson, Santosh K. Lomada, Yuxi Feng, Thomas Wieland, Richard F. W. Jackson, Richmond Muimo
Summary: Nonhydrolysable stable analogues of & tau;-phosphohistidine and & pi;-phosphohistidine were designed, synthesized, and used as haptens to generate pHis polyclonal antibodies. The selectivity of the pHis antibodies was assessed by competitive ELISA, and it was found that antibodies generated using phosphopyrazole 8 were selective for & tau;-pHis, while antibodies generated using pyridyl amino amide 13 were selective for & pi;-pHis. Both & tau;- and & pi;-pHis antibodies showed effectiveness in various immunological experiments.
Article
Chemistry, Physical
Patrick W. Fowler, Martha Borg, Barry T. Pickup, Irene Sciriha
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2020)
Article
Mathematics, Applied
Patrick W. Fowler, Barry T. Pickup, Irene Sciriha, Martha Borg
ARS MATHEMATICA CONTEMPORANEA
(2017)
Correction
Chemistry, Physical
Chen Luo, Yan Shao, Hua Yu, Hong-zhi Ma, Yu-hao Zhang, Long Gu, Bo Yin, Ming-bo Yang
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Stefano Borocci, Armando Camerlingo, Felice Grandinetti, Maria Rutigliano, Nico Sanna
Summary: The complexes of He, Ne, Ar, Kr, and Xe with B3N3H6 were investigated using MP2, CCSD(T), and SAPT ab initio methods. The complexes can be described as mono-, di-, and tri-coordinated to the N atoms, with stability following the order N-mono < N-di < N-tri. The interactions are dominated by dispersion and the binding energies are within the range of 1 or 2 kcal mol(-1). The results were compared with a recent DFT study on larger BN sheets complexes [Phys. Chem. Chem. Phys. 24 (2022) 2554-2566.].
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
V. Nagarajan, R. Bhuvaneswari, R. Chandiramouli
Summary: In this study, stable phosphoborane was used as a sensor to detect isobutane and n-propane in Liquefied Petroleum Gas (LPG). Phosphoborane demonstrated structural stability and semiconducting nature, and exhibited promising adsorption properties for the LPG molecules.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Xiaoxi Xu, Zijiang Yang, Bayaer Buren, Maodu Chen
Summary: In this study, the time-dependent wave packet method was used to investigate the reaction channels and mechanisms of Ca+ + HD. The results show that the CaH+ + D reaction channel plays a primary role, which is consistent with experimental results. Complex forming and direct-abstraction reaction mechanisms exist in this reaction process.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Keshab Pandey, Hae Kyung Jeong
Summary: A free-standing silicon-carbon nanofiber composite film was synthesized and investigated for supercapacitor applications. It exhibited high specific capacitance, energy density, and power density. After 5000 cycles, the film showed excellent specific capacitance retention and Coulombic efficiency.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Xinyu Zhang, Haosong Li, Xiaoyu Cao, Jing Gao, Yong Wei, Jianzhuo Zhu
Summary: The evaporation behavior of nanosized water aggregations on two-dimensional electroneutral solid surfaces with different surface polar unit densities was investigated. The results showed that the evaporation rate changes non-monotonically with the surface polar unit density, and the minimum evaporation rate is obtained when the surface has a modest surface polar unit ratio of 66.7%.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Yanyan Xu, Rui Dai, Xiaojie Wang, Zhijun Qiao, Haowei Wen, Dianbo Ruan, Yuzuo Wang
Summary: This article presents an innovative solvothermal sodium insertion method for synthesizing Triphylite-NaFePO4, which demonstrates optimal electrochemical performance in sodium-ion batteries.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Meiyi Jiang, Kun Yang, Yancheng Liu, Li Yao
Summary: The geometric structure and electronic properties of transition metal M (M = Cu, Fe, Mn)-TiO2 (101) surface adsorbed by NO2 and N2O were calculated by density functional theory (DFT) and DFT + U theory. The results showed that the adsorption of NO2 and N2O on Mn and Fe atoms is more stable, and a large number of active electrons are formed around these atoms, facilitating the catalytic reactions.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Sergey A. Vyrko, Yulia G. Polynskaya, Nikita A. Matsokin, Andrey M. Popov, Andrey A. Knizhnik, Nikolai A. Poklonski, Yurii E. Lozovik
Summary: In this study, carbon nanobracelets, which are cyclic molecules composed of alternating polycyclic regions and double carbon chains, were investigated using spin-polarized density functional theory. The results show that carbon nanobracelets with odd number of monomers exhibit distinct electronic energy levels, band gaps, and carbon chain deformation compared to those with even number of monomers.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Chanchan Wang, Quan Yang, Yanzhi Ding, Xiaoyong Lu, Dong Tian
Summary: It has been found that the introduction of buffer layers improves the electrical performance of solid oxide fuel cells (SSOFCs). In this study, varying ratios of Gd-doped CeO2 were used as buffer layers in YSZ-based SSOFCs. The results demonstrate that the performance of SSOFCs is enhanced when a buffer layer is added, with the highest performance achieved using Ce0.8Gd0.2O2-delta (GDC20) as the buffer layer. This suggests that the use of GDC series buffer layers is an attractive strategy to optimize performance loss due to electrolyte-electrode interactions.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Wang Li, Yi-Fan Zhang, Jia-Bin Huang, Chang-Yang Wang, Feng Zhang, Jiu-Zhong Yang, Long Zhao
Summary: The gas-phase reaction of propargyl with vinylacetylene was investigated using synchrotron photoionization and molecular-beam mass spectrometry methodologies. The formation mechanisms of the resulting cyclic structures were examined using quantum computations. Two previously unidentified isomers were detected and identified for the first time.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Avijit Pramanik, Sanchita Kundu, Olorunsola Praise Kolawole, Kaelin Gates, Paresh Chandra Ray
Summary: This study investigates the influence of aspect ratio and quantum confinement on the single-photon and two-photon absorption cross-section of perovskite CsPbI3 nanorods. Experimental data shows that CsPbI3 nanorods have an extremely high two-photon absorption cross-section, significantly surpassing organic chromophores and other CsPbBr3 nanocrystals. Moreover, adjusting the aspect ratio can significantly enhance the absorption ability. Additionally, the study also reveals a moderate quantum confinement effect on the single-photon and two-photon absorption cross-section of the nanorods.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Hyon-Tae Pak, Jin-A Choe, Kyong-Sik Ju, Yong -Son Rim
Summary: Drug-loaded cellulose diacetate (CDA) membranes were prepared using different compositions of mixed solvent. The microstructure and performance of the membranes were investigated, and a method to predict drug release properties was proposed. The results showed that the composition of the mixed solvent significantly affected the overall performance of CDA membranes, and the release rates of drugs were related to Δdelta and the intrinsic viscosity of CDA.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Gabriella E. Ravin, E. Curotto
Summary: We have developed a systematic approach to optimize the training set sizes for neural networks in fitting ab initio potential energy surfaces. Using this approach, we have constructed several spectroscopic quality potential energy surfaces for [Li(H2)n]+, n = 1 - 9. The ground state properties have been computed for all the systems and selected states.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Guohua Xu, Lei Xu, Feng Zhang, Chunling Yu, Yu Song
Summary: NiS1.03@Ni7S6/carbon composite was successfully prepared using corn stalk as a carbon source via a simple adsorption-sulphurization process. The composite exhibited a specific capacitance of 1554.6 F/g at 1 A/g as a supercapacitor electrode, with a capacitance retention rate of 80.4% after 5000 cycles. Furthermore, the NiS1.03@Ni7S6/carbon//AC asymmetric supercapacitor showed a high energy density of 41.2 Wh kg-1 at a power density of 750 W kg-1, and excellent cycling stability with 86.8% capacitance retention after 10,000 cycles.
CHEMICAL PHYSICS LETTERS
(2024)
