bluuebunny/crossref_metadata_2025_split huggingface dataset:
In situ measurement of the electron elastic reflection coefficient at a plasma-exposed silicon dioxide surface
Authors: Sobolewski Mark A 
Published: December 2023

Abstract
Plasma simulations require accurate input data that describe the interactions of electrons with plasma-exposed surfaces. One important, rarely studied interaction is elastic reflection. This article presents measurements of the elastic reflection coefficient made in situ, i.e. during plasma exposure, in an inductively coupled plasma (icp) reactor that has an azimuthally asymmetric, rf-biased substrate electrode. The rf current and voltage across the sheath adjacent to this electrode were measured, along with the ion current density and electron temperature, for argon plasmas at 0.67 and 1.33 Pa. Using the measurements and a numerical sheath model, the currents contributed by electrons that are emitted from the rf-biased electrode are determined. Some emitted electrons are elastically reflected from the opposing surface, the fused quartz window below the icp source. Deflection of these electrons by 13.56 MHz electric and magnetic fields in the plasma can prevent them from returning to the rf-biased electrode, producing a second-harmonic current at 27.12 MHz. The transport of the emitted electrons is simulated by a plasma model that includes electric and magnetic effects, transit-time effects, elastic reflection at the electrode as well as the window, and multiple passes through the plasma. From the plasma model and the measured 27.12 MHz current, the elastic reflection coefficient at the quartz window was determined, for electron energies from 25 eV to 1.2 keV. The measured reflection coefficient was higher than literature values for clean Si, but it had a similar energy-dependence. An approximate analytical form for its energy-dependence is presented, as well as an uncertainty analysis.
Reliability of enhancement-mode p-GaN gate GaN HEMT with multiple field plates
Authors: Wei Yingqiang , Wei Jinghe , Zhao Wei , Wu Suzhen , Wei Yidan , Liu Meijie , Sui Zhiyuan , Zhou Ying , Li Yuqi , Chang Hong , Ji Fei , Wang Weibin , Yang Lijun , Liu Guozhu 
Published: December 2023

Abstract
In this paper, we fabricate enhancement-mode p-GaN gate GaN HEMTs with multiple field plates (MFPs) and analyze the reliability of the devices by means of simulation and experiment. Simulations of the electric-field distribution indicate that the MFPs effectively weaken the electric field peak near the gate to below the theoretical breakdown value and smooth the electric field between the gate edge and drain-side field plate edge. The simulated electric field peak leading to the breakdown of the device with MFPs at high drain voltage is located at the drain edge, which is validated by experimental results. The GaN HEMTs with MFPs exhibit excellent long-term reliability under high temperature and drain voltage, while deviations from threshold voltage and on-resistance were observed in the device subjected to drain stress. We attribute these deviations to electron accumulation and high field-assisted detrapping processes in the p-GaN layer. This investigation provides new insight into the mechanism of variations in threshold voltage and on-resistance under off-state drain stress.
Resonance states of the three-disk scattering system
Authors: Schmidt Jan Robert , Ketzmerick Roland 
Published: December 2023

Abstract
For the paradigmatic three-disk scattering system, we confirm a recent conjecture for open chaotic systems, which claims that resonance states are composed of two factors. In particular, we demonstrate that one factor is given by universal exponentially distributed intensity fluctuations. The other factor, supposed to be a classical density depending on the lifetime of the resonance state, is found to be very well described by a classical construction. Furthermore, ray-segment scars, recently observed in dielectric cavities, dominate every resonance state at small wavelengths also in the three-disk scattering system. We introduce a new numerical method for computing resonances, which allows for going much further into the semiclassical limit. As a consequence we are able to confirm the fractal Weyl law over a correspondingly large range.
A memristive system: dynamics, synchronization, parameter modulation and demodulation
Authors: Wang S-F 
Published: December 2023

Abstract
The subject of this article is to study a memristive system and modulation and demodulate the information signal in security system, a novel memristive system is presented and its dynamics are considered. Then, the adaptive synchronization control between the proposed memristive systems is demonstrated. Additionally, the original signal is modulated in a system parameter and it can be demodulated by using filter technology. Compared to previous secure systems, in this scheme, the demodulated signal can be adjusted by the adaptive filter, It has better security performance and is easy to implement in engineering.
Dynamic analysis of the effects of dissipative elements and modulational instability in a multicoupled nonlinear electrical transmission line with the propagation of new rogue waveforms
Authors: Ahmadou Djidere , Alphonse Houwe , Justin Mibaile , Alioum Saïdou , Betchewe Gambo , Yamigno Serge Doka , Timoleon Crépin Kofane 
Published: December 2023

Abstract
In this study, we consider a nonlinear multicoupled discrete electrical transmission line consisting of several modified Noguchi lines and analyze the dynamics of the effects of dissipative elements on modulated waves. This analysis shows that the dispersion element (C

S
) and solution parameter (γ) strongly contribute to the increase in voltage amplitudes and to the modulation of these new rogue waveforms, unlike the dissipative element (G). Using a semi-discrete approximation, we demonstrate that the dynamics of modulated waves in such a dissipative electrical system can be governed by a system of nonlinear Schrödinger equations, the Manakov system, and system parameters. The phenomenon of modulational instability in this dissipative electrical system is studied, and areas of instability are shown. We found that the dissipative element of this system increased and decreased the areas of instability. Under the condition of this Manakov system, we determine the approximate modulated wave solutions that are then used for the dynamic analysis of the effects of dissipative elements when transmitting these new rogue waveforms through this dissipative electrical system. The effects of the parameters of this nonlinear dissipative electrical system, such as dispersive, dissipative, and solution parameters, in the dominant direction of propagation of these new rogue wave signals are presented. Based on these results, we observe that the effects of dissipative elements do exist in this nonlinear dissipative electrical system and that these dissipative elements would also impact the areas of modulational instability, which could gradually disappear in this electrical system.
Electrokinetic energy conversion efficiency in a nanochannel with slip-dependent zeta potential
Authors: Liu Yongbo , Wu Zhilin , Liu Guanting 
Published: December 2023

Abstract
Electrokinetic energy conversion in hydrophobic nanochannels has been studied by many scholars because of its high estimated conversion efficiency. However, these studies mainly focued on the the case of slip-independent zeta potential, ignoring the effect of slip length on zeta potential. In the paper, we study the energy conversion of pressure-driven flow in plane nanochannel with slip-dependent (S.D.) zeta potential. Through the derived analytical expression and schematic analysis of electrokinetic energy conversion efficiency, it can be observed that, within specific parameter ranges, when taking into account the S.D. zeta potential, the conversion efficiency is improved. The maximum conversion efficiency obtained is approximately 23%, which is an improvement of 5.9% compared to the slip-independent (S.I.) zeta potential. This study may have a positive impact on achieving more efficient energy collection and play a important role in the energy field.
Neural regulation of slow waves and phasic contractions in the distal stomach: a mathematical model
Authors: Athavale Omkar N , Avci Recep , Clark Alys R , Di Natale Madeleine R , Wang Xiaokai , Furness John B , Liu Zhongming , Cheng Leo K , Du Peng 
Published: December 2023

Abstract

Objective. Neural regulation of gastric motility occurs partly through the regulation of gastric bioelectrical slow waves (SWs) and phasic contractions. The interaction of the tissues and organs involved in this regulatory process is complex. We sought to infer the relative importance of cellular mechanisms in inhibitory neural regulation of the stomach by enteric neurons and the interaction of inhibitory and excitatory electrical field stimulation. Approach. A novel mathematical model of gastric motility regulation by enteric neurons was developed and scenarios were simulated to determine the mechanisms through which enteric neural influence is exerted. This model was coupled to revised and extended electrophysiological models of gastric SWs and smooth muscle cells (SMCs). Main results. The mathematical model predicted that regulation of contractile apparatus sensitivity to intracellular calcium in the SMC was the major inhibition mechanism of active tension development, and that the effect on SW amplitude depended on the inhibition of non-specific cation currents more than the inhibition of calcium-activated chloride current (kiNSCC = 0.77 vs kiAno1 = 0.33). The model predicted that the interaction between inhibitory and excitatory neural regulation, when applied with simultaneous and equal intensity, resulted in an inhibition of contraction amplitude almost equivalent to that of inhibitory stimulation (79% vs 77% decrease), while the effect on frequency was overall excitatory, though less than excitatory stimulation alone (66% vs 47% increase). Significance. The mathematical model predicts the effects of inhibitory and excitatory enteric neural stimulation on gastric motility function, as well as the effects when inhibitory and excitatory enteric neural stimulation interact. Incorporation of the model into organ-level simulations will provide insights regarding pathological mechanisms that underpin gastric functional disorders, and allow for in silico testing of the effects of clinical neuromodulation protocols for the treatment of these disorders.
Selective chronic recording in small nerve fascicles of sciatic nerve with carbon nanotube yarns in rats
Authors: Kotamraju B P , Eggers Thomas E , McCallum Grant A , Durand Dominique M 
Published: December 2023

Abstract

Objective. The primary challenge faced in the field of neural rehabilitation engineering is the limited advancement in nerve interface technology, which currently fails to match the mechanical properties of small-diameter nerve fascicles. Novel developments are necessary to enable long-term, chronic recording from a multitude of small fascicles, allowing for the recovery of motor intent and sensory signals. Approach. In this study, we analyze the chronic recording capabilities of carbon nanotube yarn electrodes in the peripheral somatic nervous system. The electrodes were surgically implanted in the sciatic nerve’s three individual fascicles in rats, enabling the recording of neural activity during gait. Signal-to-noise ratio (SNR) and information theory were employed to analyze the data, demonstrating the superior recording capabilities of the electrodes. Flat interface nerve electrode and thin-film longitudinal intrafascicular electrode electrodes were used as a references to assess the results from SNR and information theory analysis. Main results. The electrodes exhibited the ability to record chronic signals with SNRs reaching as high as 15 dB, providing 12 bits of information for the sciatic nerve, a significant improvement over previous methods. Furthermore, the study revealed that the SNR and information content of the neural signals remained consistent over a period of 12 weeks across three different fascicles, indicating the stability of the interface. The signals recorded from these electrodes were also analyzed for selectivity using information theory metrics, which showed an information sharing of approximately 1.4 bits across the fascicles. Significance. The ability to safely and reliably record from multiple fascicles of different nerves simultaneously over extended periods of time holds substantial implications for the field of neural and rehabilitation engineering. This advancement addresses the limitation of current nerve interface technologies and opens up new possibilities for enhancing neural rehabilitation and control.
Influence of laser-induced Au-plasma plume collision on the efficiency of x-ray radiations and the energy-transport process relevant to ICF
Authors: Zhang Yuxue , Yuan Wenqiang , Song Tianming , Lei Zhu , Zhang Zhiyu , Qing Bo , Zhao Yang , Yang Guohong , Li Yukun , Chen Tao , Che Xingsen , Huang Chengwu , Zhu Tuo , Xiong Gang , Lv Min , Zhao Yan , Li Liling , Zhang Lu , Zhang Jiyan , Qiao Bin , Yang Jiamin 
Published: December 2023

Abstract
Experiments and simulations have been carried out to study the colliding process by two lasers irradiating a gold half-hohlraum. Via analyzing the evolutionary x-ray images, radiation fluxes and self-emission spectrum of tracers, influence on the x-ray conversion efficiency and the local plasma temperature

T

e
,
i

from two gold-plasma plumes have been investigated deeply, which is similar as the configuration in Inertial Confinement Fusion (ICF). Experimental results confirm a region with high electron and ion temperatures

T

e
,
i

are induced, satisfying the strong collision condition of

λ

i

<
Δ

L

, where λ

i
and

Δ

L

are respectively the ion mean-free path and the gradient length of Te
. It leads to almost

30
%

increasing of M-band component compared to that from a single laser-irradiation case. Meanwhile ion temperature in this region increases more rapidly than electrons, reaching about

T
i

≈
(
16
±
4
)

keV (

T
e

≈
(
2
±
0.2
)

keV). Thus, our studies provide the experimental evidence of quantitative x-ray enhancement and a non-equilibrium evolution simultaneously due to the plasma collision for the first time. Besides, two-dimensional simulation results reveal that this process can not be precisely described by the traditional shock-heating model by dissipating the shock energy only to ions. But by distributing the viscous heating between both electrons and ions as theoretically discussed by Miller (2020 Comput. Fluids
210 104672), numerical results can match experiments better. This discovery will be of great importance to improve the precision of prediction for ICF.
Receptive field surround influences on the neuron’s activity in extrastriate area 21a.
Authors: Nalbandyan V V , Meliksetian A A , Khachvankian D K 
Published: December 2023

Abstract
The formation of the neuron response to the specific visual stimulus is attributed to the involvement of many interconnected neuron groups, various both qualitatively and quantitatively. The main aim of the present study was to identify patterns of modulating influences exerted on the neuron response patterns when the space surrounding their receptive fields (RF) was stimulated. The presented results demonstrated that the parallel and synchronous activation of the surrounding RF space significantly modulates the response patterns of neurons in area 21a to the moving visual stimuli. This modulation can have both facilitating and inhibitory effects. In most cases (68%), activation of the near environment of the RF had a facilitating effect, while stimulation of more distant areas of the visual field led to inhibition of responses. These data suggest that the coordinated interaction among a multitude of simultaneously activated neurons with overlapping RFs may play a crucial role in the integration and diversification of incoming visual information.
On investigations of radiation processes in media under external influences conducted at the IAPP
Authors: Grigoryan L Sh , Saharian A A , Grigoryan M L , Kotanjyan V Kh , Khachatryan H F 
Published: December 2023

Abstract
One of the areas of research conducted at the Institute of Applied Problems of Physics (IAPP) is the study of the influence of different media on the radiation processes generated by relativistic charged particles (channeling radiation, transition radiation, Cherenkov radiation, diffraction radiation, etc.). Additionally, many interesting phenomena arise when acoustic fields are excited in media. This is exactly the field of study of acoustophysics. The paper is devoted to the review of studies conducted in Lab. 3 of IAPP in these areas.
Research On Discharge Plate Of Plough Tripper Based On Discrete Element
Authors: Yao Yanping , Gu Xiangyu 
Published: December 2023

Abstract
The plough discharger is the key device of the belt conveyor, which targets the wear problem of the baffle. In this paper, the coal particle model is established by EDEM, the normal cumulative contact energy and tangential cumulative contact energy of discharge baffles with radius of 1.6m, 2.5m, 4.5m and 8m are obtained, as well as the average velocity of coal particles contacting discharge baffles with different curvature radii, and the wear of the baffle with different curvature under the same working conditions are studied. The optimal radius of curvature was selected through analysis. It provides a basis for the future design of the discharger baffle.
Application of computer geological model in geotechnical engineering investigation
Authors: Gu Mudan 
Published: December 2023

Abstract
The computer geological model is the approximate model of the actual complex geological phenomenon. During the modeling process, uncertainty from various sources can lead to deterioration of the quality of geological models. In order to ensure the usability of the model, it is necessary to consider the influence of spatial autocorrelation and interrelationship between strata on information transmission and uncertainty when analyzing and predicting multi-layer geological structures. The purpose of this paper is to improve the accuracy and testing breadth of computer modeling by studying geotechnical exploration activities. The calculation formula of information entropy of geological variables is given. At the same time, it introduces how to calculate the maximum information entropy of geological variables under the prior distribution according to the prior information constraints, and how to calculate the results of geological variables under the posterior distribution by using Bayesian updating. This paper introduces the calculation method of formation attribute probability field and iterates formation probability from bottom to top. The results show that the Copula method can improve the geological model in statistical sense. Finally, it is concluded that establishing 3D geological model by computer is helpful to improve the accuracy of geological exploration.
Application research of machine manufacturing process monitoring based on neural network
Authors: Guan Xiqiao , Yu Yunlong , Sui Penglin 
Published: December 2023

Abstract
In the process of mechanical manufacturing, parameters such as geometry, size and surface quality are important factors affecting product quality. The existing technology makes it difficult to conduct product monitoring and data monitoring during machine manufacturing. At the same time, the uncertainty of the manufacturing process also brings great challenges. Therefore, it is necessary to design corresponding monitoring schemes according to different situations. Therefore, neural network based machinery manufacturing process monitoring technology is of great significance. The neural network model established in this paper can automatically learn and establish complex mapping relationships, and can predict and detect anomalies according to historical data. In addition, deep learning technology can be used to carry out adaptive feature learning on a large amount of monitoring data, and complete efficient training and real-time decision-making in a distributed environment. Compared with the common mechanical manufacturing process, neural network monitoring has a lower loss rate and error rate. The neural network based machinery manufacturing process monitoring technology will become an important direction of the future development of machinery manufacturing industry, and will have great practical application value in improving production efficiency, reducing production cost and ensuring product quality.
Forty years (1983–2023) with LAPD and for its future evolution
Authors: Muraoka K. 
Published: December 2023

Abstract
This article is divided into two parts; namely, the first part describes how the series of Laser-aided plasma diagnostics (LAPD) symposia was conceived and has gradually evolved into the present form during the past four decades, and the second part shows the main focus of the meetings to gradually converge into the `cross-fertilizations' with other fields of science and engineering as the raison d'etre of the LAPD symposia, which is explained using outputs of mainly from the author's group. It is the author's hope that the next/coming generation will deepen the above second part for the future LAPD symposia to flourish further by eye-opening new developments.
The effect of the innards silage of fish and coconut pulp fermentation on the biomass and population of silkworm (Tubifex tubifex)
Authors: Puspitasari D , Lutfiyah L , Sulmartiwi L 
Published: December 2023

Abstract
Silkworm is a type of worm that can be found in waterways that contain organic matter. Silkworms are difficult to find especially during the rainy season and silkworms can carry parasites because their habitat is in dirty places. The purpose of this study was to determine the effect and effective dose of a combination of the innards silage of fish and coconut pulp fermentation on the biomass and population of silkworms. The research method used was the experimental method, data analysis in this study used Analysis of Variance (ANOVA) and continued with Duncan’s Multiple Distance test. The result showed application combination of the innards silage of fish and coconut pulp fermentation had a significant effect (p<0.05) on the biomass and population of silkworms. The highest biomass with a value of 16,296 g was found in treatment P3 (rice field mud+25% innards silage of fish +75% fermentation coconut pulp), while the highest population was obtained in treatment P3 with a total population of 1463 individuals.
Stress level of vaname shrimp (Litopenaeus Vannamei) with infested ciliata pathogens after open wet transportation
Authors: Apriyadi A F , Mahasri G , Sulmartiwi L 
Published: December 2023

Abstract
Vaname shrimp (Litopenaeus vannamei) is one of the leading fishery commodities in Indonesia. The unbalanced interaction between the environment, host, and pathogen causes the shrimp’s body defense to decrease and it is easy for parasites to infest and cause disease. This study aimed to determine the correlation between stress levels and the degree of ectoparasite infestation in vaname shrimp which was infested with pathogenic ciliates prior to open wet system transportation. This research uses survey method. Sampling of vaname shrimp at IBAP Lamongan. The parameters observed were blood glucose levels and the degree of infestation. The results of the ectoparasite examination showed that the ectoparasites that infested vaname shrimp had the degree of infestation in the category of very mild to moderate infestation. The number of vaname shrimp with a very light category is 4, the category of light infestation degree is 22, the number of vaname shrimp with a moderate level of infestation category is 24. There is a correlation between blood glucose levels and the level of infestation of ectoparasites which have a very high power. Thus, an increase in blood glucose levels will be followed by an increase in the rate of ectoparasite infestation.