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Journal articles on the topic 'Coulomb efficiency'

Author: Grafiati

Published: 28 June 2021

Last updated: 29 July 2025

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1

You, Gongchuan, and Liang He. "High Performance Electrolyte for Iron-Ion batteries." Academic Journal of Science and Technology 5, no. 2 (2023): 244–47. http://dx.doi.org/10.54097/ajst.v5i2.6995.

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Aqueous rechargeable batteries have received widespread attention due to their excellent power density, simple manufacturing process, and inexpensive electrolyte. Iron-ion batteries are expected to meet the goals of high safety, low cost, and non-toxicity pursued in the field of rechargeable batteries. However, passivation, parasitic hydrogen evolution reaction (HER), and low electroplating efficiency (50%-70%) limit the improvement of electrochemical performance, which greatly restricts their practical application. In this study, a high-performance electrolyte for iron-ion batteries was prepa

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2

Bobrovskij, Igor, Alexander Khaimovich, Nikolaj Bobrovskij, J. Antonio Travieso-Rodriguez, and Fedor Grechnikov. "Derivation of the Coefficients in the Coulomb Constant Shear Friction Law from Experimental Data on the Extrusion of a Material into V-Shaped Channels with Different Convergence Angles: New Method and Algorithm." Metals 12, no. 2 (2022): 239. http://dx.doi.org/10.3390/met12020239.

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The combined Coulomb constant shear friction law is widely used in commercial and research software for the finite-element analysis (FEA) of metalworking and is naturally more flexible and hence, more relevant to real-life manufacturing than the individual Coulomb and constant shear friction laws. In this work, a new mathematical model of coefficients in the Coulomb constant shear friction law for extruding a metal through narrow V-shaped channels with small convergence angles has been developed and evaluated and compared with laboratory measurements. The extrusion of the model material (lead)

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3

LAURITSCH, G., and P. G. REINHARD. "AN FFT SOLVER FOR THE COULOMB PROBLEM." International Journal of Modern Physics C 05, no. 01 (1994): 65–75. http://dx.doi.org/10.1142/s0129183194000064.

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A solution of the Coulomb problem in Fourier representation is given. The problems with the long-range parts of the Coulomb potential are circumvented by a separate handling of them. This allows the Fourier representation to develop its typical efficiency and robusteness.

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4

Shen, Ding, Mengyuan Jia, Mingyue Li, et al. "High Coulomb Efficiency Sn–Co Alloy/rGO Composite Anode Material for Li–ion Battery with Long Cycle–Life." Molecules 28, no. 9 (2023): 3923. http://dx.doi.org/10.3390/molecules28093923.

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The low cycle performance and low Coulomb efficiency of tin-based materials confine their large–scale commercial application for lithium–ion batteries. To overcome the shortage of volume expansion of pristine tin, Sn–Co alloy/rGO composites have been successfully synthesized by chemical reduction and sintering methods. The effects of sintering temperature on the composition, structure and electrochemical properties of Sn–Co alloy/rGO composites were investigated by experimental study and first-principles calculation. The results show that Sn–Co alloys are composed of a large number of CoSn and

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5

Song, P., P. Kraus, V. Kumar, and P. Dupont. "Analysis of Rigid-Body Dynamic Models for Simulation of Systems With Frictional Contacts." Journal of Applied Mechanics 68, no. 1 (2000): 118–28. http://dx.doi.org/10.1115/1.1331060.

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The use of Coulomb’s friction law with the principles of classical rigid-body dynamics introduces mathematical inconsistencies. Specifically, the forward dynamics problem can have no solutions or multiple solutions. In these situations, compliant contact models, while increasing the dimensionality of the state vector, can resolve these problems. The simplicity and efficiency of rigid-body models, however, provide strong motivation for their use during those portions of a simulation when the rigid-body solution is unique and stable. In this paper, we use singular perturbation analysis in conjun

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Engeda, A., and G. Franchetti. "Macroparticle Collisionality in PIC solver." Journal of Physics: Conference Series 2687, no. 6 (2024): 062028. http://dx.doi.org/10.1088/1742-6596/2687/6/062028.

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Abstract This paper presents a new numerical technique for the calculation of the Coulomb interaction between nearby charged particles. The efficiency of this method is demonstrated by distributing charged particles in a three dimensional sphere for an amount of particles, Npar , ranging from 1 × 105 to 1.6 × 106. Using the presented method, the computation of the mean field and Coulomb near field interaction can be performed separately.

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7

Zhou, Miaomiao, Jianjun Zhao, Xiaodong Wang, et al. "Enhanced stability of vanadium-doped Li_1.2Ni_0.16Co_0.08Mn_0.56O₂ cathode materials for superior Li-ion batteries." RSC Advances 12, no. 51 (2022): 32825–33. http://dx.doi.org/10.1039/d2ra05126e.

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8

Qing-Yun, Chen, Shi Dong-Dong, Zhang Yuan-Jun, and Wang Yun-Hai. "Phenol degradation on novel nickel-antimony doped tin dioxide electrode." Water Science and Technology 62, no. 9 (2010): 2090–95. http://dx.doi.org/10.2166/wst.2010.401.

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Nickel and antimony doped tin dioxide is a novel anodic material for its good performance of electrochemical ozone generation and direct electro-catalytic oxidation. Electro-catalytic oxidation of phenol on this novel nickel-antimony doped tin dioxide electrode is presented here. The morphology and composition of the electrode are characterized. The effects of applied current densities on phenol degradation rate, energy consumption and coulomb efficiency are discussed. In 0.1 M sulfuric acid, after 4 h electrolysis with current density of 25 mA cm−1, 90% phenol is removed. And with current den

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9

Yu, Chun Jian, Xiao Diao Huang, Cheng Gang Fang, and Ke Fang Dai. "Research on Damping and Vibration Characteristic of the Large and Precision NC Rotary Table." Advanced Materials Research 97-101 (March 2010): 1216–22. http://dx.doi.org/10.4028/www.scientific.net/amr.97-101.1216.

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According to the current situation of acicular chip and high-frequency chattering of the NC rotary table while gear milling, rigidity and damping performances of the table were analyzed and the damping program of Coulomb friction was bring up. Online test of the gear milling cutting force can be used to establish dynamic model of circumferential vibration of the table with Coulomb friction. Then mechanism of restraining gear cutting chatter by damping of Coulomb friction and acicular chip generating mechanism were exposed. Furthermore, relationship between backlash and rotary rigidity of the t

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10

Zimbovskaya, Natalya A. "Large enhancement of thermoelectric effects in multiple quantum dots in a serial configuration due to Coulomb interactions." Journal of Physics: Condensed Matter 34, no. 25 (2022): 255302. http://dx.doi.org/10.1088/1361-648x/ac640c.

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Abstract In the present work we theoretically study Seebeck effect in a set of several quantum dots in a serial configuration coupled to nonmagnetic conducting electrodes. We focus on the combined effect of intra-dot Coulomb interactions between electrons and the number of dots on the thermopower (S) and the thermoelectric figure of merit (ZT) of the considered transport junction within the Coulomb blockade regime. We show that a strong enhancement of the both S and ZT may occur when the chemical potential of electrodes is situated within the Coulomb gap in the electron transmission spectrum t

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11

Wen, T., G. S. Solt, and D. W. Gao. "Electrical resistance and coulomb efficiency of electrodialysis (ED) apparatus in polarization." Journal of Membrane Science 114, no. 2 (1996): 255–62. http://dx.doi.org/10.1016/0376-7388(96)00005-1.

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12

Krasny, Robert, and Lei Wang. "A treecode based on barycentric Hermite interpolation for electrostatic particle interactions." Computational and Mathematical Biophysics 7, no. 1 (2019): 73–84. http://dx.doi.org/10.1515/cmb-2019-0006.

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AbstractA particle-cluster treecode based on barycentric Hermite interpolation is presented for fast summation of electrostatic particle interactions in 3D. The interpolation nodes are Chebyshev points of the 2nd kind in each cluster. It is noted that barycentric Hermite interpolation is scale-invariant in a certain sense that promotes the treecode’s efficiency. Numerical results for the Coulomb and screened Coulomb potentials show that the treecode run time scales like O(N log N), where N is the number of particles in the system. The advantage of the barycentric Hermite treecode is demonstrat

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13

Masuda, Yoshitake, Junji Akimoto, and Kazumi Kato. "Nanoarchitectonics of Acicular Nanocrystal Assembly and Nanosheet Assembly for Lithium-Ion Batteries." Journal of Nanoscience and Nanotechnology 20, no. 5 (2020): 3004–12. http://dx.doi.org/10.1166/jnn.2020.17443.

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Nanoarchitectonics of metal oxide nanocrystal electrodes were developed for lithium-ion batteries. The electrodes included copper nanoparticles and doped fluorine. For the acicular nanocrystals, charge–discharge reactions progressed at 1.8 V over 100 cycles at 100 and 10 μA. A 15-mmdiameter battery containing acicular nanocrystals showed capacity, coulomb efficiency, and specific capacity, respectively of 20 μAh, 98%, and ~242 mAh/g at 100 μA and 40 μAh, 99%, and 484 mAh/g at 10 μA. The TiO2/SnO2 electrode consisted of a SnO2 sheet-assembled structure with surface layers of anatase TiO2. The T

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Nikhamkin, M. Sh, S. V. Semenov, G. V. Mekhonoshin, I. V. Semenova, and N. A. Sazhenkov. "Twin Shaft Rotor System Vibration Damping Experimental Investigation." Applied Mechanics and Materials 752-753 (April 2015): 918–21. http://dx.doi.org/10.4028/www.scientific.net/amm.752-753.918.

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The influence of dry friction damping on twin shaft model test rig vibration experimental investigation is presented. Experimental investigation method is devised and tested at the work. Dry and Coulomb friction damper is developed. The efficiency of damping is evaluated quantitatively via rotor shaft vibration displacements amplitude determining.

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15

Niharika, Purohit, and Tiwari Shruti. "EV battery SOC estimation method for adaptive power management." i-manager’s Journal on Electrical Engineering 18, no. 2 (2024): 1. https://doi.org/10.26634/jee.18.2.21478.

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Accurate State of Charge (SOC) estimation is essential for effective power management in Electric Vehicles (EVs), as it directly impacts battery performance, energy efficiency, and driving range. This paper presents an adaptive SOC estimation method using the Coulomb counting method, implemented in MATLAB, aimed at optimizing EV battery power management. The proposed method integrates real-time battery modeling and dynamic filter adaptation to account for varying operational conditions, such as load fluctuations, temperature changes, and battery degradation. A simplified battery model, incorpo

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16

Yan, Xiaoying, Yunwei Tong, Yingjie Liu, et al. "Highly Reversible Zn Anodes through a Hydrophobic Interface Formed by Electrolyte Additive." Nanomaterials 13, no. 9 (2023): 1547. http://dx.doi.org/10.3390/nano13091547.

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Hydrogen evolution reaction and dendrite growth seriously break the Zn plating/stripping process at the electrolyte/electrode interface, causing the instability of the Zn anode of aqueous zinc ion batteries. To improve the Zn anode stability and reversibility, we report a new electrolyte additive of aqueous electrolyte with the hydrophobic group. This interfacial hydrophobicity maximises the exclusion of free water from the Zn anode surface, which blocks water erosion and reduces interfacial side reactions. Thus, in an optimal 2 M ZnSO4 electrolyte with 2 g·L−1 Tween-85, the hydrogen evolution

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17

Das, Kritanjali, and Santanu Sharma. "Coulombic efficiency estimation technique for eco-routing in electric vehicles." AIMS Energy 10, no. 3 (2022): 356–74. http://dx.doi.org/10.3934/energy.2022019.

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<abstract> <p>A battery source is an indispensable component in electric vehicles and its efficient usage results in improvement of battery life. The amount of energy stored in batteries, including their state of charge and efficiency, are critical metrics for evaluating vehicle performance. This article presents an automated motor-generator linked technique for estimating battery-related parameters, which is an essential aspect of eco-routing in electric vehicles. This system enables discharging of a battery at various current rates by constant resistive loads which are electronic

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18

Li, Fei, Shao Jun Wang, Li Wei, Wei Na Tao, Xue Yang Dong, and Hua Liu. "LiFePO₄/Li Batteries with Mixtures of Carbonate and Ionic Liquid [EMIM]⁺[TFSI]^- as High Properties and Safety Electrolyte." Applied Mechanics and Materials 275-277 (January 2013): 2375–80. http://dx.doi.org/10.4028/www.scientific.net/amm.275-277.2375.

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The electrolyte optimum composition consists of 1mol/L LiTFSI in the [EMIM]+[TFSI]-mixed with EC and DMC in weight ratio of 60:20:20. The LiFePO4/Li cell using 1 mol/L LiTFSI/([EMIM]+[TFSI]-/EC/DMC) as electrolyte show that the first coulomb efficiency was 90% and the first discharge capacity was 168mAh g-1. The 15th reversible capacities were maintain 157mAh g-1at 0.2C. Compared with traditional organic electrolyte and pure IL electrolyte, IL-based mixed electrolyte have good coulomb efficiencies and higher charge and discharge performances. The lithium transference number of IL-based mixed e

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19

Karaseva, E. V., S. E. Mochalov, and V. S. Kolosnitsyn. "Effect the temperature and lithium polysulfides on the composition of lithium cathodic deposits formed on a steel electrode." Èlektrohimiâ 60, no. 4 (2024): 262–75. http://dx.doi.org/10.31857/s0424857024040028.

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Using our method developed earlier, we studied the effect the lithium polysulfides on the amount and ratio of electrochemically active metallic lithium, electrochemically inactive metallic lithium, and chemically formed lithium compounds into cathode deposits formed on a stainless steel electrode during galvanostatic cycling in 1М solution of LiClO4 in sulfolane at 15, 30, 45 and 60°C. It is shown that an increase in temperature leads to an increase in the Coulomb efficiency of cycling and the amount of electrochemically active metallic lithium and a decrease in the amount of electrochemically

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20

Wang, Jing, Riwei Xu, Chengzhong Wang, and Jinping Xiong. "Electrochemical Performance of Deposited LiPON Film/Lithium Electrode in Lithium—Sulfur Batteries." Molecules 29, no. 17 (2024): 4202. http://dx.doi.org/10.3390/molecules29174202.

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This paper presents a composed lithium phosphate (LiPON) solid electrolyte interface (SEI) film which was coated on a lithium electrode via an electrodeposit method in a lithium–sulfur battery, and the structure of the product was characterized through infrared spectrum (IR) analysis, X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), environment scanning electron microscope (ESEM), etc. Meanwhile, the electrochemical impedance spectrum and the interface stability of the lithium electrode with the LiPON film was analyzed, while the coulomb efficiency and the cycle life of the lit

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21

Nazhipkyzy, Meruyert, Anar B. Maltay, Kydyr Askaruly, Dana D. Assylkhanova, Aigerim R. Seitkazinova, and Zulkhair A. Mansurov. "Biomass-Derived Porous Carbon Materials for Li-Ion Battery." Nanomaterials 12, no. 20 (2022): 3710. http://dx.doi.org/10.3390/nano12203710.

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Biomass-based carbon nanofibers (CNF) were synthesized using lignin extracted from sawdust and polyacrylonitrile (PAN) (30:70) with the help of the electrospinning method and subsequent stabilization at 220 °C and carbonization at 800, 900, and 1000 °C. The synthesized CNFs were studied by scanning electron microscopy, energy-dispersive X-ray analysis, Raman spectroscopy, and the Brunauer–Emmett–Teller method. The temperature effect shows that CNF carbonized at 800 °C has excellent stability at different current densities and high capacitance. CNF 800 in the first test cycle at a current densi

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22

Yang, Bin, Jin Wang, Youyu Zhu, et al. "Engineering hard carbon with high initial coulomb efficiency for practical sodium-ion batteries." Journal of Power Sources 492 (April 2021): 229656. http://dx.doi.org/10.1016/j.jpowsour.2021.229656.

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23

Kerr, Mark J., Andres Cuevas, and Patrick Campbell. "Limiting efficiency of crystalline silicon solar cells due to Coulomb-enhanced Auger recombination." Progress in Photovoltaics: Research and Applications 11, no. 2 (2003): 97–104. http://dx.doi.org/10.1002/pip.464.

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24

Ziaee, Mohammad, and Farzad Hejazi. "Developed steady-state response for a new hybrid damper mounted on structures." PLOS ONE 18, no. 8 (2023): e0290248. http://dx.doi.org/10.1371/journal.pone.0290248.

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Coulomb friction is considered as a mechanical approach to diminish the structural responses during the excitations. However, in case of severe oscillations supplementary mechanisms are employed besides the friction to mitigate the destructive effects of the vibrations in structures. Therefore, the main goal of this research is to develop a new Hybrid System (HS) which is a parallel combination of Viscous Damping (VD) and Coulomb friction for structures subjected to dynamic load. To achieve this goal, the effect of viscous damper is embedded in the equation of motion which is proposed by Den H

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25

Nguyen, T. K. T., T. B. Cao, T. A. Chu, T. L. H. Nguyen, H. Q. Nguyen, and M. N. Kiselev. "Effects of asymmetry in Kondo channels on thermoelectric efficiency." Communications in Physics 34, no. 4 (2024): 317. https://doi.org/10.15625/0868-3166/21659.

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We revisit an asymmetric two-channel charge Kondo model, which has been studied in the [Phys. Rev. B 82 (2010) 113306]. A nano-device modelling two-channel Kondo physics is a large metallic quantum dot which is embedded into a two-dimensional electron gas (2DEG) and connected strongly to two electrodes through two almost transparent single-mode quantum point contacts. The 2DEG is in the integer quantum Hall regime [Z. Iftikhar et al., Nature (London) 526 (2015) 233]. The reflection amplitudes at the quantum point contacts are asymmetric. We find that the thermopower and the figure of merit are

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26

Mandzyuk, V. I., V. G. Khomenko, V. M. Sachko, I. F. Myronyuk, and V. Z. Barsukov. "The Lithium Power Sources Based on Porous Carbon Material." Фізика і хімія твердого тіла 16, no. 1 (2015): 217–20. http://dx.doi.org/10.15330/pcss.16.1.217-220.

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The paper describes the use of porous carbon material (PCM), obtained from plant raw materials as anode of lithium power source (LPS). It is established that the electrochemical parameters of LPS at current density of C/20 are stable over long cycling (over 90 charge/discharge cycles) – discharge capacity remained at 150 mA∙h/g, and Coulomb efficiency exceeds 95%.

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27

Kolosnitsyn, V. S., A. L. Ivanov, and E. V. Karaseva. "Lithium cathode deposition in sulfolane electrolytes on stainless steel electrode." Electrochemical Energetics 9, no. 1 (2009): 25–29. http://dx.doi.org/10.18500/1608-4039-2009-9-1-25-29.

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The effect of different lithium salts on the lithium behavior – cyclic cathode deposition and anodic dissolution – (cycling life) on stainless steel in sulfolane electrolytes is studied. It is shown that the overvoltage of electrode processes decreases in series LiBF4 > LiCF3SO3 > LiClO4 > Li2Sn. Maximum coulomb efficiency and cycling life of lithium are obtained in lithium polysulfides electrolyte solution.

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28

Tan Tai, Nguyen Huynh, and Le Van Anh. "A simple weak form for contact problems with Coulomb friction." Vietnam Journal of Mechanics 33, no. 4 (2011): 259–82. http://dx.doi.org/10.15625/0866-7136/33/4/259.

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This paper proposes a weak form for the contact problem with Coulomb friction, written as extension of the standard virtual work principle and involving both the displacements and the multipliers defined on the reference contact surface. The mixed relationship is shown to be equivalent to the strong form of the initial/boundary value contact problem, and it can be discretized by means of the finite element method in a simple way. Typical numerical examples are given to assess the efficiency of the formulation in statics and dynamics.

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29

Gümüş, Sedat. "On The Computation Of Two-Center Coulomb Integrals Over Slater Type Orbitals Using The Poisson Equation." Zeitschrift für Naturforschung A 60, no. 7 (2005): 477–83. http://dx.doi.org/10.1515/zna-2005-0702.

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In this paper, a new analytical formula has been derived for the two-center Coulomb integrals over Slater type orbitals using the Poisson equation. The obtained results from constructed computer program for the presented formula have been compared with the available literature and it is seen that the efficiency of the presented algorithm for a wide range of quantum numbers, orbital exponents and internuclear distances is satisfactory.

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Spyrou, A., H. W. Becker, A. Lagoyannis, S. Harissopulos та C. Rolfs. "A 4π γ-summing method for cross-section measurements of capture reactions". HNPS Proceedings 15 (1 січня 2020): 111. http://dx.doi.org/10.12681/hnps.2627.

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Capture reaction cross sections at energies far below the Coulomb barrier are of major importance for the understanding of stellar nucleosynthesis. Since the cross sections of the majority of these reactions are very small, the use of high efficiency detectors is essential. In this work, a new method for capture reaction cross section measurements based on a large volume 4π NaI detector is presented.

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Wang, Hui, Yu Li, Yue Mi, et al. "Cu(II) and Cr(VI) Removal in Tandem with Electricity Generation via Dual-Chamber Microbial Fuel Cells." Sustainability 15, no. 3 (2023): 2388. http://dx.doi.org/10.3390/su15032388.

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Microbial fuel cells (MFCs) have shown great advantages in electricity production, heavy metal removal, and energy recovery. However, the impact and mechanism of conflicting effects of numerous electron acceptors on heavy metal removal remain unknown. The effects of different initial heavy metal concentrations, cathodic dissolved oxygen, and electrode materials on the electricity generation and heavy metal removal efficiencies of Cu(II) and Cr(VI) were investigated in this study. When the initial concentration of Cr(VI) increased from 10 mg/L to 150 mg/L, the maximum voltage, coulomb efficienc

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32

Gulo, Clara Ester Nikmat, and Nethania Nonifati Roselin Gea. "Analisis Hukum Coulomb Dalam Dinamika Muatan Listrik." Jurnal Ilmu Ekonomi, Pendidikan dan Teknik 1, no. 3 (2024): 13–18. https://doi.org/10.70134/identik.v1i3.89.

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The background to this research focuses on Coulomb's law, which is a basic principle in physics that explains interactions between electric charges. This law is very important in understanding various electrical and magnetic phenomena that occur in nature. In the context of electric charge dynamics, a deep understanding of Coulomb's law can provide better insight into interactions between charges in various technological applications, such as in electronics and telecommunications.The aim of this research is to analyze existing literature on Coulomb's law and its application in electric charge

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Winzer, Torben, and Ermin Malić. "Microscopic study of the efficiency of Coulomb- and phonon-induced relaxation channels in graphene." physica status solidi (b) 248, no. 11 (2011): 2615–18. http://dx.doi.org/10.1002/pssb.201100048.

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Chellal, Arezki Abderrahim, José Gonçalves, José Lima, Vítor Pinto, and Hicham Megnafi. "Design of an Embedded Energy Management System for Li–Po Batteries Based on a DCC-EKF Approach for Use in Mobile Robots." Machines 9, no. 12 (2021): 313. http://dx.doi.org/10.3390/machines9120313.

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In mobile robotics, since no requirements have been defined regarding accuracy for Battery Management Systems (BMS), standard approaches such as Open Circuit Voltage (OCV) and Coulomb Counting (CC) are usually applied, mostly due to the fact that employing more complicated estimation algorithms requires higher computing power; thus, the most advanced BMS algorithms reported in the literature are developed and verified by laboratory experiments using PC-based software. The objective of this paper is to describe the design of an autonomous and versatile embedded system based on an 8-bit microcon

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Mulia, Dipa. "UKURAN TOKO DAN HOMOGENITAS BARANG DAGANGAN PENGARUHNYA TERHADAP DAYA TARIK TOKO TERHADAP KONSUMEN." Jurnal Manajemen 19, no. 3 (2017): 426. http://dx.doi.org/10.24912/jm.v19i3.32.

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Munculnya toko toko baru biasanya menimbulkan “pergerakan konsumen” dari satu toko yang sudah ada kepada toko yang baru muncul. Toko toko yang letaknya saling berdekatan saling mempengaruhi satu sama lain dalam memperebutkan konsumen yang sama sehingga dapat dikatakan bahwa kinerja toko secara keseluruhan menjadi tidak efisisien. Model Elektrostatik atau Model Coulomb yang diperkenalkan oleh ahli Fiska abad 18, Charles Augustine de Coulomb dapat digunakan dalam menganalisis pengaruh toko terhadap konsumennya sehingga dapat dibuatkan desain toko agar kinerjanya menjadi efisien. Makalah ini dibu

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YE Sheng, WANG Shang, CHEN Ziyu, LI Weiyan, SHEN Shiqi, and CHEN Yanjun. "Applications of the Semiclassical Response Time Theory in Strong-Field Molecular Ionization." Acta Physica Sinica 74, no. 15 (2025): 0. https://doi.org/10.7498/aps.74.20250459.

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The attosecond technology provides a powerful tool for studying the ultrafast dynamics of electrons during the strong-field ionization of atoms and molecules. This technology relies on quantitative theoretical models to invert the ultrafast time-domain information of the system during the ionization process from the photoelectron spectrum obtained through experimental measurements. One of the key issues in constructing quantitative strong-field theoretical models is the theoretical description of the Coulomb effect. Compared with the single-center Coulomb potential of atoms, molecules have mul

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Yu, Chunjian, Xiaodiao Huang, and Chenggang Fang. "Research on dynamic characteristics of NC rotary table considering leakage factors of its hydrostatic guideway." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 226, no. 11 (2012): 2674–85. http://dx.doi.org/10.1177/0954406212437642.

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The rigidity and damping characteristics of a large and heavy NC rotary table have great influence on machining efficiency and the integrated machine’s dynamic accuracy, but test and control methods related to these characteristics are difficult to apply. In the axial direction, the table was supported by a constant current hydrostatic guideway; the guideway’s surface roughness and planeness errors were the main factors contributing to hydraulic oil leakage. Based on the force analysis of a ZT20SW driven by double worm gear pairs, a dynamic model and an electromechanical–hydraulic coupling mod

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Gopnarayan, Shobhika Pankaj, Shriram D. Markande, and Vaishali P. Raut. "Optimization of single electron transistor based digital logic design." Indonesian Journal of Electrical Engineering and Computer Science 38, no. 3 (2025): 1553. https://doi.org/10.11591/ijeecs.v38.i3.pp1553-1563.

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This paper addresses the challenge of high-power consumption and delay in conventional complementary metal-oxide-semiconductor (CMOS) circuits, particularly in the design of digital logic gates. The objective is to develop a hybrid CMOS-single-electron transistor (SET) model that reduces power consumption while maintaining acceptable performance in terms of delay. The proposed model leverages coulomb oscillation in SETs to create a changeable transconductance area, which significantly reduces energy usage. Simulation results demonstrates that the hybrid CMOS-SET circuits achieve up to 30% lowe

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Stäger, David. "Measurement of the detection efficiency of a 100 µm thin plastic scintillator for muons with p = 28 MeV/c." Journal of Instrumentation 18, no. 11 (2023): C11029. http://dx.doi.org/10.1088/1748-0221/18/11/c11029.

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Abstract In the muEDM experiment, a gate detector is used to trigger the storage mechanism when a muon enters the experimental apparatus. This detector should operate at full efficiency and low thermal noise contamination. Furthermore, it should have a very low material budget to minimize the deflection of the muon trajectory by multiple coulomb scattering. A first prototype of this detector is a 100 µm thick plastic scintillator, connected to eight silicon photomultipliers reading out the scintillation light. In a dedicated beamtime at the πE1 beamline at the Paul Scherrer Institute, we measu

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Zheng, Xi, Weijie Guo, Changdong Tong, et al. "Exciton distribution-induced efficiency droop in green microscale light-emitting diodes at cryogenic temperatures." Applied Physics Letters 121, no. 20 (2022): 201109. http://dx.doi.org/10.1063/5.0117476.

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The anomalous droop in the external quantum efficiency (EQE) induced by the localization of excitons in GaN/InGaN green micro-light-emitting diodes (micro-LEDs) has been demonstrated at temperatures ranging from 25 to 100 K. At cryogenic temperatures, the random distribution of excitons among local potential energy minima limits the radiative recombination and reduces the EQE of green micro-LEDs. As the temperature increases from 25 to 100 K, the hopping of excitons from shallow potential energy minima to the potential energy valley contributes to the enhancement of radiative recombination. Th

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Alpatov, S. S., F. A. Vasiliev, and O. A. Semenikhin. "The effect of decalin and perfluorodecalin on Dendrite formation at metal lithium anodes During their operation." Èlektrohimiâ 60, no. 5 (2024): 373–84. http://dx.doi.org/10.31857/s0424857024050057.

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In this work, we studied the effect of additions of decahydronaphthalene (decalin) and its derivative, perfluorodecalin (octadecafluorodecalin), on the deposition and dissolution of lithium metal, including dendrite formation, at the anodes of secondary lithium power sources in an electrolyte based on lithium hexafluorophosphate and a mixture of ethylene carbonate (EC) and diethyl carbonate (DEC). The study was carried out using the methods of current transients and electrochemical impedance. The results showed that, in contrast to traditional cationic surfactants cetyltrimethylammonium bromid

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Lee, Wonmi, Byeong Wan Kwon, Mina Jung, Dmytro Serhiichuk, Dirk Henkensmeier, and Yongchai Kwon. "Iron-vanadium redox flow batteries with polybenzimidazole membranes: High coulomb efficiency and low capacity loss." Journal of Power Sources 439 (November 2019): 227079. http://dx.doi.org/10.1016/j.jpowsour.2019.227079.

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Liu, Yunjian, Jun Lv, Guangyan Zhu, Yanyong Gao, Sanbin Liu, and Xiaohua Chen. "Improvement of the first coulomb efficiency and rate performance of Li1.5Ni0.25Mn0.75O2.5 with spinel LiNi0.5Mn1.5O4 doping." Ionics 19, no. 10 (2013): 1335–40. http://dx.doi.org/10.1007/s11581-013-0859-4.

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Takeuchi, Tomonari, Toshikatsu Kojima, Hiroyuki Kageyama, et al. "All‐Solid‐State Lithium‐Sulfur Batteries Using Sulfurized Alcohol Composite Material with Improved Coulomb Efficiency." Energy Technology 7, no. 12 (2019): 1900509. http://dx.doi.org/10.1002/ente.201900509.

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Xu, Chenglong, Jialei Lu, Zhimiao Zhao, Yinjiang Zhang, and Jiawei Zhang. "Electricity Generation, Salt and Nitrogen Removal and Microbial Community in Aircathode Microbial Desalination Cell for Saline-Alkaline Soil-Washing Water Treatment." Water 12, no. 8 (2020): 2257. http://dx.doi.org/10.3390/w12082257.

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An aircathode microbial desalination cell (AMDC) was successfully started by inoculating anaerobic sludge into the anode of a microbial desalination cell and then used to study the effects of salinity on performance of AMDC and effect of treatment of coastal saline-alkaline soil-washing water. The results showed that the desalination cycle and rate gradually shorten, but salt removal gradually increased when the salinity was decreased, and the highest salt removal was 98.00 ± 0.12% at a salinity of 5 g/L. COD removal efficiency was increased with the extension of operation cycle and largest re

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Jiang, Qingwei, Tao Wang, and Gao Li. "Ultrasensitive and highly selective determination of iodate by reversed-phase ion pair HPLC–amperometric detector after online electrochemical reduction to iodide." Quality Assurance and Safety of Crops & Foods 15, no. 3 (2023): 36–42. http://dx.doi.org/10.15586/qas.v15i3.1223.

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We developed an ultrasensitive and highly selective method to quantify iodate (IO3–) in iodized salt and biological samples. In the high-performance liquid chromatography (HPLC) system, IO3– was injected with sampler and reduced to iodide (I–) online using a Coulomb detector (CD) as a pre-column reactor, retained by C18 column with the help of ion pairs, and then determined by an amperometric detector (AD). For analysis of IO3–, several parameters and reactive conditions of Coulomb detector, including applied potential, pH value, and salt concentration, were optimized to obtain the best reduct

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Han, Jia Jun, Jin Ning Cheng, Feng Wen Pan, Xin Kui Liu, and Fang Zhang. "Effect of Synthesis Process of Polyaniline for the Zn-PANi Secondary Batteries." Advanced Materials Research 608-609 (December 2012): 1342–46. http://dx.doi.org/10.4028/www.scientific.net/amr.608-609.1342.

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The facters of molar ratio of aniline and ammonium persulfate ,aniline concentration, concentration of HCl , carbon species and different additives was studied on the yield and conductivity of polyaniline, also the coulomb efficiency and the cycle life of Zinc-PANi secondary battery. Results show that: the molar ratio of aniline and ammonium persulfate is 1:0.9, aniline concentration 0.12mol/L and the wooden actived carbon is 35% of the weight of aniline, the best value of conductivity and capacity are respectively 2.27S/cm and 121.5mAh/g.

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Tian, Xin, Guangjian Wang, and Yujiang Jiang. "A New Calculation Method for Instantaneous Efficiency and Torque Fluctuation of Spur Gears." Strojniški vestnik - Journal of Mechanical Engineering 70, no. 1-2 (2024): 55–69. http://dx.doi.org/10.5545/sv-jme.2023.709.

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As a critical component of the joint gearbox, spur gear pairs play a crucial role in energy conversion, limiting the performance of a collaborative robot. Accurately assessing their instantaneous efficiency and torque fluctuation is essential for developing high-precision robot joint control models. This study proposes a computational model to predict the instantaneous efficiency and torque fluctuation of spur gears under typical operating conditions. The model incorporates a torque balance model, a load distribution model, and a friction model to reflect the relationship between gear meshing

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Priestley, F. D., I. De Looze, and M. J. Barlow. "The efficiency of grain growth in the diffuse interstellar medium." Monthly Notices of the Royal Astronomical Society 502, no. 2 (2021): 2438–45. http://dx.doi.org/10.1093/mnras/stab122.

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ABSTRACT Grain growth by accretion of gas-phase metals is a common assumption in models of dust evolution, but in dense gas, where the time-scale is short enough for accretion to be effective, material is accreted in the form of ice mantles rather than adding to the refractory grain mass. It has been suggested that negatively charged small grains in the diffuse interstellar medium (ISM) can accrete efficiently due to the Coulomb attraction of positively-charged ions, avoiding this issue. We show that this inevitably results in the growth of the small-grain radii until they become positively ch

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Liu, Zheng, Yisheng Hu, Fei Zhao, Bo Sun, and Ziyang Yan. "Properties of a Soluble Lead Flow Battery Recycled with Hydrogen Peroxide." ChemistrySelect 8, no. 37 (2023). http://dx.doi.org/10.1002/slct.202301675.

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AbstractThe service life of soluble lead flow batteries can be extended by periodic addition of H2O2, especially when it failed. However in first few cycles after H2O2 treatment, its coulombic efficiency is very low. To clarify it, the properties of electrode and electrolyte, and cycle performance have been systematically analyzed. It has been found that the negative/positive electrode reactions have serious overpotentials during early charging due to oxygen, which are produced and dissolved into the electrolyte during H2O2 treatment. With increasing the cycle number, the polarization degree d

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