bluuebunny/crossref_metadata_2025_split huggingface dataset:
Reducing the motion of laser spot using hollow wall design in hohlraum
Authors: Zhang Lu , Jing Longfei , Lin Zhiwei , Li Liling , Zhu Tuo , Hu Xin , Li Jin , Li Xin , Hou Lifei , Che Xingsen , Du Huabing , Kuang Longyu , Zheng Jianhua , Wu Changshu , Song Tianming , Zhao Yang , Xie Jun , He Zhibing , Zhou Wei , Zheng Wudi , Zou Shiyang , Yang Dong , Yang Jiamin , Zhao Zongqing , Ding Yongkun 
Published: December 2024

Abstract
A longer pulse, lower adiabat drive in a low gas-fill hohlraum is an inertial confinement fusion design with potential higher gain, but has challenges such as the less tamped wall plasma. Thus, it is necessary to alter the laser spot regions to control low-mode drive asymmetry when using such laser pulses. The hollow wall is designed [Vandenboomgaerde et al 2018 Phys. Plasmas 25 012713] and has been demonstrated with experiments to be effective in holding back the gold bubble expansion [Depierreux et al 2020 Phys. Rev. Lett. 125 255 002]. This paper presents experimental and simulation results demonstrating that hollow wall hohlraums effectively reduce laser spot motion. Experiment results indicate that the laser spot position in hollow wall hohlraum moves less than that in classical solid hohlraum, similar data are obtained by 2D simulation. This reduction in motion is beneficial for improving P4 drive asymmetry.
Investigation of Ammonia-Sensitive Properties of MXene/TiO2/Nafion Composites at Room Temperature
Authors: Lin Meichen , Fu Yabo , Jin Yingjie , Shi Jiazi , Wei Jiaqi 
Published: December 2024

Abstract
Ammonia (NH3) has been extensively explored in farm, food, and medical applications, therefore a highly responsive ammonia sensor is highly meaningful. The paper reports the successful fabrication of a new NH3 sensor using MXene/TiO2/Nafion composites. The incorporation of Nafion, an ionic polymer, was also found to allow for the formation of a more stable sensor film by the ionic matrix. The composite material was then integrated with this matrix at a prespecified volume ratio. The responses of the sensors were investigated. When the volume ratio of MXene and TiO2 is 1:1, the response and recovery time of the sensor is 33s and 110s, respectively, with a response rate of 98.08% at ambient temperature. A potentially useful material for NH3 gas detection was offered in this study.
Molecular Dynamics Study of the Bonding Mechanism at the Epoxy/Concrete Interface
Authors: Wang Jianzhong , Millare Jeremiah , Nie Zhenjun , Sun Jie , Yin Yuanyuan , Jia Shuhui 
Published: December 2024

Abstract
The damage to carbon fiber reinforced concrete structures primarily occurs due to the degradation of adhesion at the binder-concrete interface, making it the most susceptible to failure. This leads to the blockage of stress transfer between the epoxy resins and the concrete, which in turn makes the structural durability degraded. This paper establishes a molecular model of reticulated epoxy resin with a high degree of cross-linking and a molecular model of C-S-H gel with a calcium-silicon ratio of 1.69, using sub-dynamic simulation methods. Based on the multi-scale mapping relationship of “CFRP/concrete interface - epoxy resin/concrete interface - epoxy resin/C-S-H interface,” we innovatively developed a molecular model of the epoxy resin/C-S-H interface at the nanoscale. Molecular dynamics simulations were employed to investigate the chemical bonding between the epoxy resin and the C-S-H matrix. This study reveals the bonding mechanism at the molecular level between epoxy resin and C-S-H, providing valuable insights into the epoxy resin/C-S-H interface.
Microscopic Simulation of Carbon Fiber Reinforced Epoxy Resin Composites
Authors: Zhang Haiyun , Wang Danyong , Li Shuhu , Wei Huazhen , An Jing , Xing Wenfang 
Published: December 2024

Abstract
A representative microscopic model of carbon fiber is established by using the micro-scale simulation technology of material analysis in this paper, and its mechanical properties are calculated. The molecular model of TDE-85 epoxy resin and DDS curing agent was established, and the crosslinking reaction of epoxy resin was simulated. The interface model of carbon fiber reinforced epoxy resin is established by combining the obtained cross-linked epoxy resin model with the carbon fiber model. Through molecular dynamics research, the mechanical properties of the interface model are obtained. The data of mechanical properties can be further transferred to mesoscale, and the parameters of cross-scale simulation calculation can be transferred, which provides a basic guarantee for the research of cross-scale calculation of composite materials.
Simulation and Parametric Analysis of Particle Deposition Behavior during Spraying of Hastelloy on 321 Stainless Steel Substrate
Authors: Xuan Yuang 
Published: December 2024

Abstract
In the thermal spraying process, the particle deposition behavior has a large impact on the coating quality. In this paper, based on the coupled Eulerian Lagrangian (CEL) method, three-dimensional single-particle and multi-particle deposition models were constructed to reveal the evolution of temperature, strain and stress fields during particle deposition, and to analyze the relationship between particle size, particle velocity and particle and coating bonding. The results show that using 321 stainless steel as the substrate and Hastelloy as the coating material, and using supersonic flame spraying, the coating bonding is expected to be good and suitable for spraying.
Research on the Characteristics of Braided String Based on Domestic Aramid Fiber for Semi-rigid Substrate of Solar Array
Authors: Yang Shuli , Cheng Zhizhong , Ren Shouzhi , Ma Jingya 
Published: December 2024

Abstract
The substrate serves as a mounting base for the solar cells of the space-based solar array, and the “rigid frame of carbon fiber composite + tensioned mesh structure based on the braided string” constitutes the primary structure of the semi-rigid substrate of the large DFH-5 satellite. Tests and experiments have been conducted in four key areas: the creep characteristics of the braided string and its core under different loads, the creep characteristics of the braided string’s core due to changes in humidity and temperature, and the creep characteristics of the braided string itself due to temperature changes. The results show that the elongation of the braided string is twice that of its core under the same load. To reduce the stress relaxation of the tensioned braided string, it is necessary to perform pre-treatment to mitigate creep in advance. An increase in humidity can cause tension relaxation in the tensioned braided string. To mitigate this, a pre-tensioned core of the braided string can be utilized, and environmental control on the ground is recommended to reduce the impact of humidity on tension relaxation. Thermal pre-treatment is advised, as high temperatures can lead to partial changes in the properties or thermal stress release of aramid III fiber, resulting in the relaxation of the tensioned braided string and irreversible changes. The creep performance of the braided string’s core, however, is not affected by low temperatures. Through these experiments, the creep characteristics and pre-treatment guidelines for the braided string under different environmental conditions have been established, providing a foundation for the large-scale application of this structure in semi-rigid substrates of solar arrays.
Study on Migration Characteristics of Pb and Cu and Stabilization of Fly Ash During Incineration of Domestic Refuse
Authors: Bi Yanliang , Yin Yumin , Liu Liyuan , Zhang Meng , Wang Zihao , Wang Zhenhua 
Published: December 2024

Abstract
Heavy metals are important pollutants in the process of incineration of solid waste and pose a potential threat to the environment. In this paper, two heavy metals, Pb and Cu, were taken as the research objects, and their migration rules in the furnace refuse, slag, fly ash and flue gas were tracked and monitored respectively. The results showed that the concentration ratios of Pb and Cu in the slag and fly ash were 1:3.05 and 1:3.29, respectively, which were consistent with the furnace waste. No Cu was detected in the flue gas, but a small amount of Pb was present. XRF analysis shows that the CaO content in fly ash is 22.24%, Cl 6.64%, SO3 12.28% and K2O 4.37%, and the CaO content in fly ash is significantly reduced. The content of Cl and SO3 is 5.31 times and 2.97 times of the slag, respectively. The migration and storage of Cl and S promote the transformation of Pb and Cu. XRD analysis shows that the content of SO2, CaCO3, Ca(OH)2 and SiCl4 in slag is high. The high NaCl content in fly ash can promote the migration of Pb and Cu from slag to fly ash. Through leaching concentration monitoring and SEM analysis, the surface of fly ash was condensed from loose structure to flocculent structure after chelation, and the porosity was significantly reduced, and the leaching concentrations of Pb and Cu were reduced by 99.9% and 94.7% respectively, which greatly reduced the risk to the environment. The research results of this paper can provide reference for the harmless disposal and resource utilization of slag and fly ash in the incineration disposal of domestic waste.
Effect of Nitrogen Deposition on Diversity and composition of Soil Bacterial in Water-level-fluctuation zone of Mountain Reservoir
Authors: Chen Haisheng , Lu Gaobo , Chen Taolue 
Published: December 2024

Abstract
To determine the response of soil bacterial community structure to the difference of Nitrogen deposition concentration in thr RS of Taxodium distichum (L.) Rich. planting in water-level-fluctuation zone of Changtan mountain reservoir, southern-east .part of China. Three levels (0, 30Kg/ha·a, 60Kg/hm·a) were used to simulate nitrogen deposition. The illumina miseq sequencing method was used to study the bacterial community of the RS Taxodium distichum (L.) Rich. planting in this region. The results indicated that the shannon index and Chao 1 index of soil bacterial community structure in water-level-fluctuation zone showed an initial increase and subsequent decrease with increasing nitrogen deposition. Nitrogen deposition addition greatly changed the bacterial community structure in the RS of Taxodium distichum (L.) Rich. planting in water-level-fluctuation zone of reservoir. The relative abundance of Acidobacteria increase with increasing nitrogen deposition, while relative abundance of Actinobacteria decrease with increasing nitrogen deposition at phylum level. The relative abundance of Gemmatimonadetes and Sphingomonas showed an initial decrease and subsequent increase with increasing nitrogen deposition at genus level. Our results can provide a scientific basis for further thoroughly understanding and predicting the influence of future atmospheric nitrogen deposition on ecological functions of bacterial community in carbon and nutrient cycles of water-level-fluctuation zone of mountain reservoir.
Comparison of simulated and measured coincidence time resolution and energy resolution of scintillation crystals coupled to SiPM device
Authors: Nagai A. , Foster J. , Barry C. , Bellis S. , Cashman E. , Couglan B. , Dolinsky S. , Foley S. , Herbert D.J. , Perry M. , Pourashraf S. , Levin C.S. 
Published: December 2024

Abstract
Scintillating crystal coupled to a silicon photomultiplier SiPM is a typical detection solution in many modern radionuclide imaging systems such as positron emission tomography (PET). Coincidence time resolution (CTR) and energy resolution (ER) are two key performance parameters in the field of time-of-flight PET (ToF-PET). Both CTR and ER are system level parameters related to crystal choice dimension, speed and noise of the read-out electronics, calibration and analysis algorithms, and SiPM performance. In this work, the effect of SiPM photon detection efficiency PDE, single photon time resolution SPTR, and correlated and uncorrelated noise on CTR and ER were studied. For this purpose, analytical calculation and Monte Carlo simulation tools for CTR and ER were developed and tested for the onsemi MicroFJ-60035 SiPM device at different operating bias voltages coupled with LYSO and BGO crystals. The obtained analytical and simulation results were compared with experimental measurements performed with a 22Na source and 3 × 3 × 3 mm3 LSYO crystal wrapped in Teflon reflector and coupled to SiPMs using optical grease. Good agreement between measurements, simulation, and analytical calculation was found for ER at all device working range, and the best ER of ∼ 9% for 511 keV photopeak was found for the 3 × 3 × 3 mm3 LYSO crystal. The CTR was simulated for LYSO crystals with different lengths from 3 mm up to 30 mm and varies from 110 ps (3 mm crystal) up to 170 ps (30 mm crystal). It was compared to experimental measurements performed for 3, 5 and 20 mm crystal length, where CTR was measured from 95 ps (3 mm crystal) up to 140 ps (20 mm crystal). A difference from 5 ps up to 20 ps was found between Monte Carlo simulation and CTR measurements depending on the crystal length. The analytical calculation shows on average ∼ 20 ps worse CTR than experimental measurements. The systematic discrepancy between experimental and simulated CTR values might be related to a difference in light collection efficiency and level of electronics noise used in calculations as well as SiPM PDE angular dependency, while the discrepancy between experimental and analytical CTR might be related to read-out electronics noise which seems to have too high effect on analytical calculation.
PETAT — an ASIC for simple and efficient readout of large PET scanners
Authors: Fischer P. , Kerschenbauer T. , Ritzert M. 
Published: December 2024

Abstract
Modern PET scanners based on scintillating crystals use solid state photo detectors for
light readout. The small area of these devices is beneficial for spatial resolution, but also
leads to a large number of electronic channels to be read out, mostly by application specific
integrated circuits (ASICs) containing amplification, noise reduction, hit finding, time stamping
and amplitude measurement. Although each ASIC provides up to ≈ 64 channels, a large number
of chips is required with the need for auxiliary electronic components like voltage regulators or
FPGAs for control and data readout. The FPGAs in turn often require multiple supply voltages and
configuration infrastructure, so that PCBs get complicated, cumbersome and power-hungry, in
addition to the significant power requirement of the front-end ASICs. We address this issue in
the latest generation of our PETA readout ASIC for SiPMs by a simplified control scheme and, in
particular, by a hierarchical serial data readout which does not require any additional FPGA. In
addition, it provides a time-sorted stream of hit data, allowing early on-detector data reduction
and hit pre-processing like the removal of hits with no coincident partner. The simplicity of
this readout facilitates a supply scheme where power/ground of multiple ASICs are connected in
series instead of the standard parallel connection. This `serial-powering' approach can
reduce supply current (while increasing overall supply voltage) so that voltage drop issues in the
supply are alleviated.
Construction of antibacterial silicone rubber catheter modified with the biomass carbon dots and its properties
Authors: Liu Jing , Shao Ziyang , Liu Liyuan , Zhao Qinke , Yang Yongzhen , Niu Mei , Zhang Li , Xue Baoxia 
Published: December 2024

Abstract
To endow silicone rubber (SR) catheter with antibacterial property, the SR catheter was modified with a new kind of biomass carbon dots (CDs) by the bulk modification to obtabin the SR/CDs catheter. The antimicrobial behavior and biocompatibility of SR/CDs catheter were analyzed by plate counting method, cytotoxicity test and in vivo animal experiments. The results showed that, SR/CDs catheter possessed antimicrobial properties, and the minimum inhibitory concentration of SR/CDs catheter was 20 mg ml−1 against Escherichia coli and Staphylococcus aureus. The antimicrobial mechanism of SR/CDs was further investigated, and it was found that the SR/CDs induced the production of reactive oxygen species in bacterial cells by disrupting the bacterial membrane through adsorption. In addition, in vivo experiments have shown that SR/CDs catheter owns good biosafety profile and reduces the risk of catheter-associated urinary tract infections by modulating inflammatory factors. Meanwhile, SR/CDs catheter can be produced in a simple production process using an extruder, which is expected to be used as a novelty type of catheter in the clinic.
A Dean–Kawasaki equation for reaction diffusion systems driven by Poisson noise
Authors: Spinney Richard E , Morris Richard G 
Published: December 2024

Abstract
We derive a stochastic partial differential equation that describes the fluctuating behaviour of reaction-diffusion systems of N particles, undergoing Markovian, unary reactions. This generalises the work of Dean (1996 J. Phys. A: Math. and Gen.
29 L613) through the inclusion of random Poisson fields. Our approach is based on weak interactions, which has the dual benefit that the resulting equations asymptotically converge (in the

N
→
∞

limit) on a variation of a McKean–Vlasov diffusion, whilst still being related to the case of Dean-like strong interactions via a trivial rescaling. Various examples are presented, alongside a discussion of possible extensions to more complicated reaction schemes.
Hamiltonian approach to delay ordinary differential equations
Authors: Dorodnitsyn Vladimir , Kozlov Roman , Meleshko Sergey 
Published: December 2024

Abstract
The paper suggests a Hamiltonian formulation for delay ordinary differential equations (DODEs). Such equations are related to DODEs with a Lagrangian formulation via a delay analog of the Legendre transformation. The Hamiltonian delay operator identity is established. It states the relationship for the invariance of a delay Hamiltonian functional, appropriate delay variational equations, and their conserved quantities. The identity is used to formulate a Noether-type theorem, which provides first integrals for Hamiltonian DODEs with symmetries. The relationship between the invariance of the delay Hamiltonian functional and the invariance of the delay variational equations is also examined. Several examples illustrate the theoretical results.
Growth, Spawning, and Management Patterns of Female Euthynnus affinis (Cantor, 1849)) Landed in Kedonganan, Bali
Authors: Arnenda Gussasta Levi , Wiratmini Ngurah Intan , Made Sara Wijana I 
Published: December 2024

Abstract

Euthynnus affinis (Cantor, 1849)) is a type of tuna that lives in a tropical environment, with a neritic climate spread across the Indian and Pacific Oceans, and has exceeded the catch limit. So, the spawning time must be known to show a quantitative index that shows the condition of fish gonad maturity, often called the gonad maturity index. The spawning season or time occurs when gonad maturity index values in both sexes reach the highest level. A total of 235 fish samples were used, with 73 samples of male gonads and 109 samples of female gonads, and 53 samples were not identified by sex. The biological sampling protocol used a sub-sampling system with a purposive stratified sampling method. Data was collected by direct observation at the Kedonganan Fish Landing Base in 2020. The results showed that the female komo tuna’s growth pattern has a positive allometric pattern with a 26.5-58 cm FL length distribution. The sex ratio is balanced at gonad maturity. The spawning of komo tuna has an asynchronous type and partial spawner nature, spawning at night and spawning throughout the year with peak spawning seasons in August and December.
Preparation of Nanoparticle Using Mangosteen Extract (Garcinia mangostana Linn) and Its Application Toward Pickle Goat Skin
Authors: Rohaeti Eli , Ariyanti Nur Aeni , Budiasih Kun Sri , Saputri Febri , Permatasari Asri 
Published: December 2024

Abstract
Silver nanoparticles become one of the fields of science that are widely used in everyday life. Silver nanoparticles are also widely used in leather modifications to produce leather with superior quality. The purpose of this study was to determine the effect of silver nanoparticle prepared with mangosteen peel extract (Garcinia mangostana Linn) and MTMS solution on antimicrobial activity, hydrophobicity, and mechanical properties of composite of pickle goat skin – silver nanoparticles. Characterization of silver nanoparticles by UV Vis and PSA. Based on the results of UV Vis characterization, nanoparticles were formed at a wavelength of 439.6 nm. Based on characterization by PSA, the diameter of silver nanoparticles was about 98.10 nm. The pickle goat skin after modification with nanoparticle in situ had good inhibition against E. coli and S. epidermidis. However, the goat skin before modification had good inhibition against C. albicans at the 24th hour measurement.
Investigating the spatiotemporal distribution of refractivity structure index in low-speed flow field by moiré deflectometry
Authors: Jiang Jian , Chen Yunyun , Cheng Weihao , Cao Zimu , Yang Cuihong 
Published: December 2024

Abstract
Atmospheric optical turbulence is a significant restraint on free-space optical communication and atmospheric laser transmission, whose intensity is generally quantified by the refractivity structure index. In this paper, moiré deflectometry is applied to study the combined effects of thermal disturbance and flow speed on the spatiotemporal distribution of the refractivity structure index. Firstly, three sets of comparative experiments are conducted, and 3600 frames of moiré fringes are captured within an hour in each set. Then, the spatiotemporal distribution is obtained based on the theoretical relationship between the refractivity structure index and the phase information recorded by moiré fringes. Finally, its regularities under different experimental conditions are comparatively analyzed. The findings reveal that both thermal disturbance and flow speed will change the intensity of optical turbulence. And, although the latter has a much weaker impact than the former, their combined effects will increase the intensity by three orders of magnitude. In this process, the contribution of thermal disturbance accounts for more than 75%. In short, the related results could provide some insights for research on atmospheric optical detection and communication.
Cyclic solid-state quantum battery: thermodynamic characterization and quantum hardware simulation
Authors: Razzoli Luca , Gemme Giulia , Khomchenko Ilia , Sassetti Maura , Ouerdane Henni , Ferraro Dario , Benenti Giuliano 
Published: December 2024

Abstract
We introduce a cyclic quantum battery QB model, based on an interacting bipartite system, weakly coupled to a thermal bath. The working cycle of the battery consists of four strokes: system thermalization, disconnection of subsystems, ergotropy extraction, and reconnection. The thermal bath acts as a charger in the thermalization stroke, while ergotropy extraction is possible because the ensuing thermal state is no longer passive after the disconnection stroke. Focusing on the case of two interacting qubits, we show that phase coherence, in the presence of non-trivial correlations between the qubits, can be exploited to reach working regimes with efficiency higher than 50% while providing finite ergotropy. Our protocol is illustrated through a simple and feasible circuit model of a cyclic superconducting QB. Furthermore, we simulate the considered cycle on superconducting IBM quantum machines. The good agreement between the theoretical and simulated results strongly suggests that our scheme for cyclic QBs can be successfully realized in superconducting quantum hardware.