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Journal articles on the topic 'Energy Ladder Model'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Cheranovskii, V. O., E. V. Ezerskaya, and A. O. Kabatova. "The energy spectrum and low-temperature magnetic properties of the decorated two-leg mixed spin ladder." Low Temperature Physics 49, no. 4 (2023): 438–42. http://dx.doi.org/10.1063/10.0017584.

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The energy spectra and low-temperature magnetic properties of two one-dimensional Heisenberg mixed spin ( s = 1, 1/2) systems, namely decorated two-leg mixed spin ladders with the lattice topology of polyacene, are studied. The gapless character of the exact excitation energy spectra for both ladder models has been determined. We found numerically that the model with macroscopic ground state spin S0 has gapped excitations with the spin S > S0. This leads to the appearance of an intermediate plateau in field dependence of magnetization at low temperatures. We have shown that the ladder with

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2

Adamu, M. B., H. Adamu, S. M. Ade, and G. I. Akeh. "Household Energy Consumption in Nigeria: A Review on the Applicability of the Energy Ladder Model." Journal of Applied Sciences and Environmental Management 24, no. 2 (2020): 237–44. http://dx.doi.org/10.4314/jasem.v24i2.7.

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Household energy consumption dynamics in developing countries is often conceptualized through the Energy ladder model and assumes that with increasing income, householders will have a preference to cleaner energy. This paper reviewed various energy sources for household consumption and examines the implications of their dependence on traditional energy sources as well as the energy ladder model as a concept widely used by scholars in describing the role of income in determining energy use and choices. It further explains the consumption behaviour of households in relation to the major assumpti

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3

Nazer, Muhammad, and Hefrizal Handra. "Analisis Konsumsi Energi Rumah Tangga Perkotaan di Indonesia: Periode Tahun 2008 dan 2011." Jurnal Ekonomi dan Pembangunan Indonesia 16, no. 2 (2016): 141–53. http://dx.doi.org/10.21002/jepi.v16i2.588.

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Urban Household Energy Consumption Analysis in Indonesia: Period of 2008 and 2011The goal of the study is to analyze the pattern and the change of urban household energy consumption and their determinant factors in Indonesia period of 2008 and 2011 using SUSENAS data of household budget survey. The concept of energy ladder and fuel stacking (multi fuel) are used to make a model of household energy consumption. The result of study shows that total energy consumption was increase in the period of 2008 and 2011. Coefficient of income elasticity toward both of modern and traditional energy consump

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4

Cheranovskii, Vladyslav, and Viktoriia Mukhomodiarova. "Energy spectrum and magnetic properties of the decorated spin ladder models of nanomagnets on the base of polymeric transition metal compounds." Kharkov University Bulletin Chemical Series, no. 40 (April 21, 2023): 6–11. http://dx.doi.org/10.26565/2220-637x-2023-40-01.

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The work is devoted to the theoretical study of the energy spectrum and low-temperature magnetic properties of the decorated spin-ladder model with the polyacene topology and the three types of the site spins. On the base of cluster expansion technique an approximate analytical treatment of lowest part of the energy spectra of two isomeric ladder structures was given. It is shown that the ladder model with singlet ground state is more stable than its isomeric analog with the macroscopic ground state spin. In addition, the numerical study of field dependence of low-temperature magnetization of

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5

BIBIKOV, P. N. "GROUND-STATE FLUCTUATIONS IN RUNG-DIMERIZED SPIN LADDERS." International Journal of Modern Physics B 25, no. 09 (2011): 1293–300. http://dx.doi.org/10.1142/s0217979211100023.

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Treating an exactly rung-dimerized spin ladder as a reference model we study perturbatively zero temperature quantum fluctuations in spin ladders with slightly destroyed rung-dimerization. Analytic expressions are obtained for the gas parameter (density of rung-triplets) and the ground-state energy per rung. At a strong diagonal frustration as well as at a rather strong antiferromagnetic rung coupling these results well agree with the previous numerical calculations.

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6

Panic, Vladimir, Aleksandar Dekanski, and Branislav Nikolic. "Tailoring the supercapacitive performances of noble metal oxides, porous carbons and their composites." Journal of the Serbian Chemical Society 78, no. 12 (2013): 2141–64. http://dx.doi.org/10.2298/jsc131031128p.

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Porous electrochemical supercapacitive materials, as an important type of new-generation energy storage devices, require a detailed analysis and knowledge of their capacitive performances upon different charging/discharging regimes. The investigation of the responses to dynamic perturbations of typical representatives, noble metal oxides, carbonaceous materials and RuO2-impregnated carbon blacks, by electrochemical impedance spectroscopy (EIS) is presented. This presentation follows a brief description of supercapacitive behavior and origin of pseudocapacitive response of noble metal oxides. F

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7

Sarkar, Manik, Santanu K. Maiti, and Moumita Dey. "Localization phenomena and electronic transport in irradiated Aubry–André–Harper systems." Journal of Physics: Condensed Matter 34, no. 19 (2022): 195303. http://dx.doi.org/10.1088/1361-648x/ac53db.

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Abstract The role of light irradiation on electronic localization is critically investigated for the first time in a tight-binding lattice where site energies are modulated in the cosine form following the Aubry–André–Harper (AAH) model. The critical point of transition from delocalized-to-localized phase can be monitored selectively by regulating the light parameters that is extremely useful to have controlled electron transmission across the system. Starting with a strictly one-dimensional (1D) AAH chain, we extend our analysis considering a two-stranded ladder model which brings peculiar si

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8

BUZATU, F. D. "GROUND-STATE ENERGY OF THE ONE-DIMENSIONAL HUBBARD MODEL IN A SIMPLE SELF-CONSISTENT VERSION OF THE LADDER APPROXIMATION." Modern Physics Letters B 09, no. 18 (1995): 1149–57. http://dx.doi.org/10.1142/s0217984995001145.

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The ground-state energy of the one-dimensional Hubbard model is calculated within the ladder approximation; from the comparison with the exact results in the repulsive case, it follows that the approximation is good at low densities or small couplings. The ladder approximation can be improved by imposing a self-consistency condition; using a simple assumption, the results become close to the exact ones in a large range of the model parameters.

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9

Wu, Na, Jingrui Yan, Shuxian Fan, and Songge Hu. "Low-carbon Economic Scheduling of Combined Cooling, Heating and Power Microgrid Considering Demand Response and Shared Energy Storage." Journal of Physics: Conference Series 2588, no. 1 (2023): 012007. http://dx.doi.org/10.1088/1742-6596/2588/1/012007.

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Abstract In order to further promote the new energy consumption of combined cooling, heating, and power (CCHP) microgrid, reduce carbon emissions, and optimize the total operating cost of the microgrid, a low-carbon optimal scheduling model of CCHP microgrid was proposed. It considered demand response (DR) and shared energy storage (SES). Firstly, the concept of SES and its operation mode are applied to the microgrid. Secondly, in order to take advantage of the flexible nature of multiple loads, an integrated demand response (IDR) model with a ladder subsidy mechanism was established. Then, th

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10

Huang, Liping, Fanxin Zhong, Chun Sing Lai, Bang Zhong, Qijun Xiao, and Weitai Hsu. "A Ladder-Type Carbon Trading-Based Low-Carbon Economic Dispatch Model for Integrated Energy Systems with Flexible Load and Hybrid Energy Storage Optimization." Energies 18, no. 14 (2025): 3679. https://doi.org/10.3390/en18143679.

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This paper proposes a ladder carbon trading-based low-carbon economic dispatch model for integrated energy systems (IESs), incorporating flexible load optimization and hybrid energy storage systems consisting of battery and thermal energy storage. First, a ladder-type carbon trading mechanism is introduced, in which the carbon trading cost increases progressively with emission levels, thereby providing stronger incentives for emission reduction. Second, flexible loads are categorized and modeled as shiftable, transferable, and reducible types, each with distinct operational constraints and com

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11

Kryvchikov, A. A. "Effective nonfrustrated model of the antiferromagnetic spin-1/2 ladder." Low Temperature Physics 48, no. 3 (2022): 200–205. http://dx.doi.org/10.1063/10.0009537.

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The spin S = 1/2 Heisenberg model on the frustrated saw-tooth spin-chain formed by triangular structural elements is investigated. Using the numerical calculations of the finite scheme of zero-temperature density matrix renormalization group the dependence of the magnetization on the external field is obtained. The dependence of magnetization has several plateaus that correspond to the gaps of the energy spectrum. The effective non-frustrated model with a close energy spectrum away from phase transition points is constructed. The relations between the parameters of the effective model and the

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12

Cheranovskii, V. O., E. V. Ezerskaya, D. J. Klein, and V. V. Tokarev. "Lowest energy states of Hubbard ladder model with infinite electron repulsion." Computational and Theoretical Chemistry 1116 (September 2017): 112–16. http://dx.doi.org/10.1016/j.comptc.2017.03.026.

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13

Roy, Souvik, Santanu K. Maiti, Laura M. Pérez, Judith Helena Ojeda Silva, and David Laroze. "Localization Properties of a Quasiperiodic Ladder under Physical Gain and Loss: Tuning of Critical Points, Mixed-Phase Zone and Mobility Edge." Materials 15, no. 2 (2022): 597. http://dx.doi.org/10.3390/ma15020597.

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We explore the localization properties of a double-stranded ladder within a tight-binding framework where the site energies of different lattice sites are distributed in the cosine form following the Aubry–André–Harper (AAH) model. An imaginary site energy, which can be positive or negative, referred to as physical gain or loss, is included in each of these lattice sites which makes the system a non-Hermitian (NH) one. Depending on the distribution of imaginary site energies, we obtain balanced and imbalanced NH ladders of different types, and for all these cases, we critically investigate loc

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14

BUZATU, F. D. "GROUND-STATE ENERGY FOR 1D (t, U, X)-MODEL AT LOW DENSITIES." Modern Physics Letters B 06, no. 25 (1992): 1593–600. http://dx.doi.org/10.1142/s0217984992001307.

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In describing the properties of quasi-1D materials with a highly-screened interelectronic potential, an attractive hopping term has to be added to the Hubbard Hamiltonian. The effective interaction and the ground-state energy in ladder approximation are analyzed. At low electronic densities; the attractive part of the interaction, initially smaller than the repulsive term, can become more effective, the ground-state energy decreasing below the unperturbed value.

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15

JAFAROV, R. G. "THE MODEL BETHE-SALPETER EQUATIONS FOR THE HIGGS SCALARS SCATTERING AMPLITUDE WITH SOLUTIONS." Izvestiya vysshikh uchebnykh zavedenii. Fizika 67, no. 5 (2024): 20–26. https://doi.org/10.17223/00213411/67/5/3.

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The integral Bethe-Salpeter equation with minimally perturbative kernels for scattering amplitudes of Higgs scalar particles is studied using ladder (single-particle exchange) and two-particle irreducible diagram (bubble exchange) approximations. Asymptotic solutions of the corresponding equations for the scattering amplitudes of Higgs scalar particles are obtained. In case of approximation of the summation of ladder diagrams, a solution is found in the form of a power function s α in the Regge region of energy change s →∞. In the approximation of summation of two-particle irreducible diagrams

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16

KOVAČEVIĆ, Ž. Lj, та F. R. VUKAJLOVIĆ. "ELECTRONIC STRUCTURE FOR THE TWO-BAND HUBBARD MODEL OF THE LADDER α′-NaV2O5 COMPOUND". International Journal of Modern Physics B 19, № 30 (2005): 4399–417. http://dx.doi.org/10.1142/s0217979205032838.

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An effective Hubbard model for one-particle d-like states and two-particle singlet states is derived in order to describe the low-energy electronic spectrum in ladder α′- NaV 2 O 5 compound. The energy shifts and the renormalized hopping parameters for the considered electronic states are calculated on the basis of the projection technique for the two-time matrix Green's function in terms of Hubbard operators.

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17

ARNAUDON, D., A. SEDRAKYAN, and T. SEDRAKYAN. "INTEGRABLE N-LEG LADDER MODELS." International Journal of Modern Physics A 19, supp02 (2004): 16–33. http://dx.doi.org/10.1142/s0217751x04020282.

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We construct integrable spin chains with the inhomogeneous periodic disposition of the anisotropy parameter. The periodicity holds for both auxiliary (space) and quantum (time) directions. The integrability of the model is based on a set of coupled Yang–Baxter equations. This construction yields the P-leg integrable ladder Hamiltonians. We analyse the corresponding quantum group symmetry.

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18

IGUCHI, KAZUMOTO. "TIGHT-BINDING MODEL FOR THE QUANTUM LADDER IN A MAGNETIC FIELD." International Journal of Modern Physics B 10, no. 28 (1996): 3827–56. http://dx.doi.org/10.1142/s0217979296002087.

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A tight-binding model is formulated for the calculation of the electronic structure and the ground state energy of the quantum ladder under a magnetic field, where the magnetic flux at the nth plaquette is given by ϕn. First, the theory is applied to obtain the electronic spectra of the quantum ladder models with particular magnetic fluxes such as uniform magnetic fluxes, ϕn=0 and 1/2, and the staggered magnetic flux, ϕn= (−1)n+1ϕ0. From these, it is found that as the effect of electron hopping between two chains—the anisotropy parameter r=ty/tx—is increased, there are a metal-semimetal transi

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19

Cheranovskii, V. O., E. V. Ezerskaya, and I. Özkan. "Energy spectrum of extended Hubbard model with spin-dependent hopping and related spin ladder model." International Journal of Quantum Chemistry 88, no. 4 (2002): 398–402. http://dx.doi.org/10.1002/qua.10177.

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20

Ndunguru, Editha M. "Uplifting Low-Income Households along the Energy Ladder in East Africa." Journal of Policy and Leadership 10, no. 1 (2024): 67–88. https://doi.org/10.70563/jpl.v10i1.6.

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In East Africa, household cooking energy use replicates the energy ladder theory. Many low-income families rely on traditional biomass because they cannot afford modern, clean cooking energy such as electricity and Liquefies Petroleum Gas (LPG). Introducing and disseminating the Pay-as-you-cook model offers an excellent opportunity for low-income households to use LPG. This study aims to appraise the influence of Pay-as-you-cook in assisting lower-income households in adopting LPG for cooking. Specifically, it examines the upfront costs, observes the running costs, and assesses the challenges

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21

BARTELS, JOCHEN, та MICHAEL LUBLINSKY. "γ*γ* SCATTERING VIA SECONDARY REGGEON EXCHANGE IN QCD". Modern Physics Letters A 19, № 26 (2004): 1969–82. http://dx.doi.org/10.1142/s0217732304015191.

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We summarize the results on the high energy behavior of quark–antiquark exchange in γ*γ* elastic scattering. The ladder diagrams, summed in the double logarithmic approximation, provide a perturbative QCD model for secondary reggeon exchange.

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22

Balaji, Uma. "Simulation Models of Energy Cables in SPICE." International Journal of Power Electronics and Drive Systems (IJPEDS) 9, no. 2 (2018): 744. http://dx.doi.org/10.11591/ijpeds.v9.i2.pp744-749.

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Accurate modeling of cables is important to study the behavior of high frequency disturbances in power converter systems. This paper reviews and compares two popular methodologies to model energy cables – an improved per unit length parameters based model and a Laplace SPICE element based model. The two models presented take into account the frequency dependence of the parameters of the cable. A ladder network is used for this purpose in the per unit length based model. The Laplace SPICE element model is generated from from a rational function approximation for the admittance parameters that a

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23

Xu, Zhanpeng, Fuxin Chen, Xuefan Yang, and Qinfen Lu. "Optimal Configuration of Hybrid Energy Storage Capacity in a Grid-Connected Microgrid Considering Laddering Carbon Trading and Demand Response." Energies 17, no. 1 (2023): 139. http://dx.doi.org/10.3390/en17010139.

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In order to enhance the carbon emission reduction capability and economy of the microgrid, a capacity optimization configuration method considering laddered carbon trading and demand response is proposed for a grid-connected microgrid consisting of photovoltaic, battery and hydrogen storage devices. Combined with the mathematical model and system structure of each unit in the microgrid, the integrated operation control strategy is determined in this paper. A demand response model containing three load types is developed to reduce the stress on the storage and generation side. A carbon-trading

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24

Macaulay, E., R. C. Nichol, D. Bacon, et al. "First cosmological results using Type Ia supernovae from the Dark Energy Survey: measurement of the Hubble constant." Monthly Notices of the Royal Astronomical Society 486, no. 2 (2019): 2184–96. http://dx.doi.org/10.1093/mnras/stz978.

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ABSTRACT We present an improved measurement of the Hubble constant (H0) using the ‘inverse distance ladder’ method, which adds the information from 207 Type Ia supernovae (SNe Ia) from the Dark Energy Survey (DES) at redshift 0.018 &lt; z &lt; 0.85 to existing distance measurements of 122 low-redshift (z &lt; 0.07) SNe Ia (Low-z) and measurements of Baryon Acoustic Oscillations (BAOs). Whereas traditional measurements of H0 with SNe Ia use a distance ladder of parallax and Cepheid variable stars, the inverse distance ladder relies on absolute distance measurements from the BAOs to

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25

Gu, Xin-Bao, Yang Zhang, Qi-Hong Wu, and Yong Wang. "The Experimental Investigation of the Optimization of the Flow State of a Ladder-Shaped Spillway in a Certain Reservoir." Geofluids 2022 (March 3, 2022): 1–11. http://dx.doi.org/10.1155/2022/9195089.

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The original design scheme of ladder-shaped spillways in certain reservoirs is improved by using a hydraulic similar model experiment. The results of the original scheme demonstrate that the stilling basin cannot meet the requirement of safe discharge, and the flow state at the end of the stilling basin is violent and chaotic. The experimental method of the physical model was used to optimize the design of the spillway without changing the original plane layout. First, three steps in the ladder are added. The stilling basin is then replaced by the torsion plane. Finally, the longitudinal slope

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Gu, X. B., Q. H. Wu, Y. Wang, and H. X. Zhao. "Hydraulic Characteristics and Numerical Simulation of the Entrance Section of Ladder-Shaped Spillway." Geofluids 2021 (December 28, 2021): 1–10. http://dx.doi.org/10.1155/2021/1907339.

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The ladder-shaped spillway in a certain reservoir junction is set as the engineering background in the paper. The hydraulic similarly model experiment and three-dimensional numerical simulation of hydraulic characteristics of water flow are performed. The outflow capacity, flow state analysis, velocity distribution, water surface line, pressure, and the energy dissipation rate are analyzed, and experimental results are compared with the numerical results. The conclusions demonstrate that the numerical results of the flow characteristics are very proximate to actual experimental results, the ch

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27

Simões, André Luiz Andrade, Harry Edmar Schulz, Rodrigo de Melo Porto, Lafayette Dantas da Luz, Lúcio Sérgio Garcia Mangieri, and Jorge Eurico Ribeiro Matos. "Hydrodynamic assessment of body exposure in drainage stairways: a numerical study." Caderno Pedagógico 21, no. 7 (2024): e5808. http://dx.doi.org/10.54033/cadpedv21n7-151.

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This work presents advances in the study of nappe flows in stepped chutes, focusing on scenarios without the formation of hydraulic jumps on the steps. The dynamics of flows in "drainage ladders", which are structures that serve as both pedestrian pathways and open channel for surface waters, was analyzed using the k- turbulence model, multiphase inhomogeneous model, and high-resolution numerical schemes. Two aspects were focused: the drainage capacity of the ladder and the resultant force exerted on a foot/leg-like obstacle located on a step of the flow. Calculation domains in two and three-

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28

Dai, Ruicheng, Xiang Zhang, and Hongbo Zou. "Two-Stage Distributed Robust Optimal Allocation of Integrated Energy Systems under Carbon Trading Mechanism." Processes 12, no. 6 (2024): 1044. http://dx.doi.org/10.3390/pr12061044.

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The development of renewable energy and the construction of a comprehensive energy system with multiple complementary energy sources have gradually become the main direction of China’s energy development. As the penetration rate of renewable energy increases, the intermittent and fluctuating output of wind and solar power has a more significant impact on the system. This article conducts research on the optimization configuration of integrated energy system (IES) considering photovoltaic output uncertainty under a ladder carbon trading mechanism. Firstly, a two-stage distributed robust optimiz

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Yang, Jingying, Xiu Ji, Meng Li, et al. "Optimal Operation of Hydrogen Energy Coupling Integrated Energy System considering Green Certificate, Ladder-Type Carbon Joint Trading, and Dual-Incentive Demand Response." International Transactions on Electrical Energy Systems 2023 (December 29, 2023): 1–23. http://dx.doi.org/10.1155/2023/5544267.

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Under the “carbon peak and carbon neutrality” goal, the construction of an efficient, low-carbon, and economical energy supply system is of great significance for advancing a dual carbon strategy. In allusion to the integrated energy systems (IES) with hydrogen energy coupling, a hydrogen energy coupling IES low-carbon optimization operation strategy that took account of green certificate and ladder-type carbon joint trading and dual-incentive demand response was proposed in this paper. First, a hydrogen energy multiuse system composed of an electrolyzer, a hydrogen fuel cell, a methane reacto

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30

PENG, HONGAN, XIUWEN XING, and LIANSHOU LIU. "SCATTERING MECHANISM OF HIGH ENERGY STRONG INTERACTION SOFT PROCESSES." International Journal of Modern Physics A 21, no. 05 (2006): 1123–41. http://dx.doi.org/10.1142/s0217751x06024359.

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Starting from the viewpoint that the constituent quark has its own structure and incorporating the hypothesis of maximum nonperturbative strong interaction reaction (MNSIR), which should be obeyed in high energy strong soft processes, we modified the field theory for soft Pomeron (ℙ) of Landshoff and Nachtmann and proposed a new structure model for the soft Pomeron ℙ and Reggeon ℝ. In this model a pair of constituent quarks coming from colliding hadron in strong soft processes are first disaggregated into a valance quark with a nonperturbative gluon cloud G wrapped about, or, according to the

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31

Qu, Xiangyu, Meng Ma, Minghang Li, Yanmei Cao, and Weining Liu. "Analysis of the Vibration Mitigation Characteristics of the Ballasted Ladder Track with Elastic Elements." Sustainability 11, no. 23 (2019): 6780. http://dx.doi.org/10.3390/su11236780.

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Despite the fact railways are seen as an environmentally friendly and sustainable form of transport, however, the train-induced vibration has been seen as a negative environmental consequence. The ballasted ladder track is one type of ballasted track with longitudinal sleepers. The elastic elements can not only protect the track structure but also control the vibration. To investigate the vibration mitigation effects of ballasted ladder track with elastic elements, a finite element - infinite element (FE-IFE) model was built considering the elastic elements of under-sleeper pads (USPs) and und

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32

Ganchimeg, Gombodorj. "Energy consumption and household’s wealthy: case of herder household in Mongolia." Mongolian Journal of Agricultural Sciences 11, no. 2 (2014): 103–9. http://dx.doi.org/10.5564/mjas.v11i2.229.

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More than half the world's population lives in rural areas, nearly 90 percent of them - some 2.8 billion - in the developing countries. Most of today's 2 billion people without adequate energy services are in rural areas. Currently, share of herder households in Mongolia with electricity sources accounts 82.7 per cent of total 160.2 thousand herder households (NSO, 2011). This study estimates the herder household’s energy consumption based on theory of energy ladder hypothesis, Engle curves and Almost Ideal Demand System (AIDS) model as demand system analysis. The results of the study illustra

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Liu, Xue-Ying, Shu-Jie Cheng, and Xian-Long Gao. "The photon blockade effect of a complete Buck-Sukumar model." Acta Physica Sinica 71, no. 13 (2022): 1. http://dx.doi.org/10.7498/aps.70.20220238.

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<sec>The Buck-Sukumar (BS) model, with a nonlinear coupling between the atom and the light field, is well defined only when its coupling strength is lower than a critical coupling. Its energy collapses at a critical coupling and is unbounded beyond that value. In other words, the BS model is incomplete. We introduce a simple and a complete BS model by adding a nonlinear photon term into the initial BS model. Considering the rotating wave approximation, this complete BS model conserves the excited number and the parity. By expanding it in the subspace of the product state between the atom

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KITAZAWA, NORIAKI. "VACUUM ALIGNMENT IN THE TOP MODE STANDARD MODEL." Modern Physics Letters A 06, no. 40 (1991): 3691–96. http://dx.doi.org/10.1142/s0217732391004279.

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We study the vacuum alignment in the top mode Standard Model in which the electroweak symmetry breaking is triggered by the top quark condensation. Including the QCD effects through the Cornwall-Jackiw-Tomboulis effective potential, we establish that the correct electroweak symmetry breaking SU (2)L × U (1)Y → U (1) em occurs in this model in 1/N leading and improved ladder approximation.

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AFANDI, ACHMAD, NOVIE AYUB WINDARKO, BAMBANG SUMANTRI, and HANIF HASYIER FAKHRUDDIN. "Estimasi State of Charge (SoC) Ultrakapasitor menggunakan Extended Kalman Filter Berbasis Ladder Equivalent Circuit Model." ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika 10, no. 1 (2022): 61. http://dx.doi.org/10.26760/elkomika.v10i1.61.

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ABSTRAKPenggunaan perangkat penyimpan energi semakin lama semakin meningkat pada peralatan berdaya kecil maupun besar. Baterai selama ini menjadi pilihan utama sebagai penyimpan energi. Namun akhir-akhir ini ultrakapasitor menjadi pilihan alternatif karena lifetime lebih panjang dan respon daya sesaat yang jauh lebih besar dari baterai. Pada manuskrip ini dibahas tentang estimasi nilai State of Charge (SoC) pada ultrakapasitor. Estimasi dilakukan berdasarkan rangkaian ekivalen ladder. Extended Kalman Filter adalah metode estimasi yang handal terhadap sistem dinamis dan tidak memerlukan banyak

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Abdullahi, Buba, Abdu Musa, Adamu Idi, Jibir Adamu, and Isah Usman Yusuf. "SOCIO - ECONOMIC DETERMINANTS OF HOUSEHOLDS FUEL CONSUMPTION IN NIGERIA." International Journal of Research - Granthaalayah 5, no. 10 (2017): 348–60. https://doi.org/10.5281/zenodo.1046324.

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Attainment of universal access to affordable, reliable, sustainable and modern energy is one of the goals for Sustainable Development Goals (SDGs). Existing data and statistic suggest that high proportion of households in less developed countries heavily rely on solid fuels for domestic requirements. Also, recent data revealed that in Nigeria over 70 percent of households depend on fuel wood for cooking which indicate the task ahead of policy makers in the country for ensuring access to efficient sources of energy before the expiration of sustainable development goals. In this study we empiric

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Liu, Zifa, and Chengchen Li. "Low-Carbon Economic Optimization of Integrated Energy System Considering Refined Utilization of Hydrogen Energy and Generalized Energy Storage." Energies 16, no. 15 (2023): 5700. http://dx.doi.org/10.3390/en16155700.

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In order to improve the level of new energy consumption in the system and utilize the clean and efficient characteristics of hydrogen energy, an integrated energy system (IES) scheduling model considering refined utilization of hydrogen energy and generalized energy storage is proposed. Firstly, the two-stage hydrogen energy utilization model of power-to-gas (P2G) is finely modeled, and the waste heat of the P2G methanation reaction is innovatively coupled with the Kalina cycle to improve the thermoelectric decoupling capability of the combined heat and power (CHP) unit. Secondly, integrated d

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SMITH, LESLEY L., PANKAJ JAIN, and DOUGLAS W. MCKAY. "A NONPERTURBATIVE, SCHWINGER–DYSON EQUATION ANALYSIS OF QUARK MASSES AND MIXINGS IN A MODEL WITH QCD AND HIGGS INTERACTIONS." Modern Physics Letters A 10, no. 09 (1995): 773–87. http://dx.doi.org/10.1142/s021773239500082x.

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The Schwinger–Dyson equation for the quark self-energy is solved in the quenched ladder approximation for several cases of one- and two-quark generations. The exchanges of standard model gluons and Higgs bosons are taken into account. It is found that Higgs boson exchange dominates the quark self-energy in the uv region for sufficiently large input quark masses (> 75 GeV ), causing the running quark propagator mass to increase with energy scale. The running of the quark mixing angles is also considered. No running of the quark mixing angles is found for input quark masses up to and includin

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Pan, Hua, Qunli Wu, Huiling Guo, and Jiayi Bai. "Low-Carbon Optimization Scheduling of Integrated Energy Systems Based on Bilateral Demand Response and Two-Level Stackelberg Game." Energies 17, no. 21 (2024): 5491. http://dx.doi.org/10.3390/en17215491.

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In the context of low-carbon energy transformation, fully utilizing the integrated demand response (IDR) resources on the load side can improve the operational flexibility and economy of the integrated energy system (IES). However, establishing a reasonable trading mechanism to enhance users’ participation in IDR has become a key issue that IES urgently needs to solve. To this end, this paper first establishes an IES model that includes electricity, heat, and gas. To reduce carbon emissions, a ladder-type carbon trading mechanism is introduced while adding low-carbon technologies such as carbo

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Xiong, Junhua, Huihang Li, and Tingling Wang. "Low-Carbon Economic Dispatch of an Integrated Electricity–Gas–Heat Energy System with Carbon Capture System and Organic Rankine Cycle." Energies 16, no. 24 (2023): 7996. http://dx.doi.org/10.3390/en16247996.

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A low-carbon economic optimization dispatch model of integrated energy system is proposed to improve the low-carbon and economic efficiency of the integrated energy systems. Firstly, the waste heat generator with the organic Rankine cycle is introduced into the combined heat and power to decouple the combined heat and power operation, and a coupled model with an organic Rankine cycle, power to gas, combined heat and power and carbon capture system is established. Then, the ladder-type carbon trading mechanism is introduced to improve the low-carbon model. Finally, the function is established t

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Nazer, Muhammad, and Hefrizal Handra. "Analisis Konsumsi Energi Rumah Tangga Perkotaan di Indonesia: Periode Tahun 2008 dan 2011." Jurnal Ekonomi dan Pembangunan Indonesia 16, no. 2 (2016): 141–53. http://dx.doi.org/10.21002/jepi.v16i2.04.

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Penelitian ini bertujuan untuk menganalisis pola dan perubahan konsumsi energi rumah tangga daerah perkotaan di Indonesia serta faktor-faktor yang memengaruhinya tahun 2008 dan 2011 dengan memanfaatkan data hasil survei pengeluaran rumah tangga SUSENAS. Konsep energy ladder dan fuel stacking (multi-fuel) diaplikasikan untuk membuat model konsumsi energi rumah tangga. Hasil penelitian memperlihatkan bahwa konsumsi energi (total), modern, dan tradisional rumah tangga perkotaan mengalami kenaikan pada periode tahun 2008 dan 2011. Koefisien elastisitas pendapatan terhadap konsumsi energi modern da

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Niyonshuti, Emmanuel. "Analysis of Household Lighting Fuel Choice in Rwanda, Africa: Using the Multinomial Logit Model." Journal of Business and Social Sciences Research 6, no. 2 (2021): 87–97. http://dx.doi.org/10.3126/jbssr.v6i2.44714.

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This paper seeks to identify the determining control factors that influence the fuel energy choice for lighting purposes in Rwanda by applying the Multinomial Logit Regression to the national representative survey at household level data. The study revealed that the households with higher income adopt the use the cleaner and modern fuel energy sources, confirming the hypothesis for the energy ladder. Not only household income exerting impact on the fuel energy choice for lighting, but also the other fuel choices that are the significant determining variables in Rwanda are the number of the roo

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Wong, K. L., and M. F. Rahmat. "Study of Leakage Current Distribution in Wooden Pole Using Ladder Network Model." IEEE Transactions on Power Delivery 25, no. 2 (2010): 995–1000. http://dx.doi.org/10.1109/tpwrd.2009.2034894.

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Liu, Juan, Minwei Liu, Zhimin Wang, Junwen Yang, and Suhua Lou. "Multi-Flexibility Resources Planning for Power System Considering Carbon Trading." Sustainability 14, no. 20 (2022): 13296. http://dx.doi.org/10.3390/su142013296.

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Clean and low-carbon energy represented by wind power and photovoltaic power will develop rapidly and will form a new power system with a high proportion of renewable energy. In the context of a low-carbon economy, how to make reasonable planning for power system flexibility resources is crucial for the development of new power systems. In this paper, we establish a multi-flexibility resource planning model for a power system based on a low carbon economy by considering the planning of multi-flexibility resources of “source–load–storage”. First, a ladder-type carbon trading cost accounting mod

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Вищекин, М. В., С. М. Дымов, Д. Ю. Русанов, and Д. В. Андреев. "Prediction of operational situations of application of mounted fire escape ladders by means of a human computational model in the form of a two-link bracket-type structure." Pozharnaia bezopasnost`, no. 3(112) (September 15, 2023): 40–48. http://dx.doi.org/10.37657/vniipo.pb.2023.112.3.004.

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В статье представлена расчетная модель усилий, прикладываемых человеком при спуске по навесной спасательной пожарной лестнице, в виде двухзвенной конструкции типа кронштейн. Проведено сравнение результатов расчета и натурных испытаний с использованием выбранной модели. Определены причины расхождений результатов. Разработана действующая модель, дающая приемлемую их сходимость. Определены затраты энергии и необходимой мощности при спуске по навесной спасательной пожарной лестнице. Определены точки пересечения расчетных результатов с аналогичными нормативами, существующими в других сферах деятель

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Zheng, Weimin, Bo Zou, Jiting Gu, Jiaqian Chen, and Jiansheng Hou. "Study on optimal allocation of energy storage in multi-regional integrated energy system considering stepped carbon trading." International Journal of Low-Carbon Technologies 19 (2024): 551–58. http://dx.doi.org/10.1093/ijlct/ctad111.

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Abstract In this study, an energy storage configuration optimization model of multi regional integrated energy system based on integrated scheduling and stepped Carbon emission trading is proposed. By analyzing the steady-state, dynamic, and variable operating characteristics of multi regional integrated energy systems, a distributed energy planning modeling method was adopted to construct energy storage configuration constraint objects and optimization models. The target scheme of energy storage configuration is optimized by using the results of integrated scheduling scheme and dynamic distri

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Zhang, Zhiyuan, Xiqin Li, Lu Zhang, et al. "Optimized Dispatch of Integrated Energy Systems in Parks Considering P2G-CCS-CHP Synergy Under Renewable Energy Uncertainty." Processes 13, no. 3 (2025): 680. https://doi.org/10.3390/pr13030680.

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To enhance low-carbon economies within Park Integrated Energy Systems (PIES) while addressing the variability of wind power generation, an innovative optimization scheduling strategy is proposed, incorporating a reward-and-punishment ladder carbon trading mechanism. This method effectively mitigates the unpredictability of wind power output and integrates Power-to-Gas (P2G), Carbon Capture and Storage (CCS), and Combined Heat and Power (CHP) systems. This study develops a CHP model that combines P2G and CCS, focusing on electric-heat coupling characteristics and establishing constraints on P2G

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Jia, Tengteng, Haoyong Chen, Xin Zeng, Yanjin Zhu, and Hongjun Qin. "Mitigating Risk and Emissions in Power Systems: A Two-Stage Robust Dispatch Model with Carbon Trading." Processes 12, no. 11 (2024): 2497. http://dx.doi.org/10.3390/pr12112497.

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The large-scale integration of renewable energy sources is crucial for reducing carbon emissions. Integrating carbon trading mechanisms into electricity markets can further maximize this potential. However, the inherent uncertainty in renewable power generation poses significant challenges to effective decarbonization, renewable energy accommodation, and the security and cost efficiency of power system operations. In response to these challenges, this paper proposes a two-stage robust power dispatch model that incorporates carbon trading. This model is designed to minimize system operating cos

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Wang, Zhenglong, Jiahui Wu, Yang Kou, Menglin Zhang, and Huan Jiang. "Collaborative Optimization Scheduling of Source-Network-Load-Storage System Based on Ladder-Type Green Certificate–Carbon Joint Trading Mechanism and Integrated Demand Response." Sustainability 16, no. 22 (2024): 10104. http://dx.doi.org/10.3390/su162210104.

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To fully leverage the potential flexibility resources of a source-network-load-storage (SNLS) system and achieve the green transformation of multi-source systems, this paper proposes an economic and low-carbon operation strategy for an SNLS system, considering the joint operation of ladder-type green certificate trading (GCT)–carbon emission trading (CET), and integrated demand response (IDR). Firstly, focusing on the load side of electricity–heat–cooling–gas multi-source coupling, this paper comprehensively considers three types of flexible loads: transferable, replaceable, and reducible. An

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Ikhenoba, Williams, Prof Enefiok Ibok, and Dr Ofonmbuk Etido Atakpa. "Career Structures and Staff Performance in Akwa Ibom State University, Nigeria (2017-2022)." International Journal of Research and Innovation in Social Science VII, no. XII (2023): 37–51. http://dx.doi.org/10.47772/ijriss.2023.7012004.

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In recent years, Nigerian public universities have become known for incessant industrial actions that disrupt academic activities and staff performance. The reasons adduced for the unpleasant situation are the generally poor conditions of work such as inadequate infrastructure; poor remuneration and workload. Despite the tough working conditions, the staff of the Akwa Ibom State University continue to perform their duties, resulting in a relatively peaceful and stable academic environment. This study was undertaken to unravel how career structures enhance staff performance. The theoretical fra

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