bluuebunny/crossref_metadata_2025_split huggingface dataset:
Analysis of time sequence and load of pulling rope mechanism of type D-knotter
Authors: Guo Jiayu , Cen Haitang 
Published: May 2024

Abstract
To solve the problem that the rope pulling plate may be delayed in the actual work of the knotter, the influence of the change of the timing of the rope pulling mechanism on the knotter forming performance was studied and analyzed. The dynamic model of the flexible bundling of the knotting machine is established using the Bushing connection of RecurDyn. The timing of the bundling machine homing is controlled by modifying the driving function of the bundling machine, and the positive pressure of the hook pliers is obtained by measuring the contact force between the bundle and the hook pliers. The results of the contact force curve show that the maximum positive pressure of the hook pliers for the normal homing of the rope plate is 290.43 N. The maximum value of the sudden change of tension can reach 837.17 N, which proves that the change in the timing of the rope pulling mechanism has a significant influence on the positive pressure of the hook pliers.
Influence of post-welding heat treatment on microstructure and peculiarity of 10Cr9Mo1VNb boiler steel welded by hot wire TIG
Authors: Li Qin , Lai Chun-Ming , Huang Yan 
Published: May 2024

Abstract
Hot wire tungsten noble gas (HW-TIG) soldering tests are conducted on 10Cr9Mo1VNb boiler steel with multi-layer and multi-pass, and the soldered joints are subjected to post-weld heat treatment (PWHT) at different temperatures and times from 740°C to 790°C and 1 hour to 4 hours. The influence of PWHT on the microstructure and peculiarity of the joints are analyzed by using hardness, metallography, room temperature tensile testing, Charpy impact testing, SEM, and other experimental methods. The results show that the PWHT can transform the martensite formed in the welding process into tempered martensite, which can significantly improve the uniformity of the microstructure and peculiarity of each area of the joint. When subjected to heat treatment at 740°C, both strength and ductility improve with the increase of heat treatment time, while the plasticity gets a slight decrease. However, when subjected to heat treatment at 790°C, strength, plasticity, and ductility decrease with the increase of time, mainly due to the carbide coarsening such as M23C6 in the joint.
Experimental study of penetration for the analysis of pre-cut free surface parameters in rock materials based on response surface methods
Authors: Xu Futong , Lu Jingjing , Zhou Hui , Fang Haibo , He Longpeng 
Published: May 2024

Abstract
The strength of intact rock material is reduced after it has been cut by techniques such as water jets, based on which the use of disc cutter hobs for rock-breaking by hobbing has good economic results. The kerf is the free surface created by water jet cutting. The kerf depth, kerf spacing, and kerf angle are the main parameters affecting the rock-breaking force of the disc cutter, which can be simplified as the normal penetration load of the indenter. To investigate the effect of prefabricated notch parameters on the penetration load and the sensitivity of the response of penetration load to each factor, response surface tests were carried out on sandstone and granite specimens, and every factor’s impact on the penetration load was examined. The results showed that: (1) The single factor analysis and interactive analysis of the prefabricated kerf parameters for sandstone and granite samples showed that the penetration load was negatively correlated with kerf depth and kerf angle, and positively correlated with kerf spacing within the set range of the test. (2) The difference in rock strength can also affect the penetration load of the samples. In the prefabricated kerf-assisted rock-breaking test, for the high-strength rock samples represented by granite, increasing the prefabricated kerf depth can reduce the penetration load of the samples more effectively.
Experimental study on surface roughness processed by ultrasonic surface rolling process
Authors: Wang Haojie , Wang Xiaoqiang 
Published: May 2024

Abstract
In order to explore the formation principle of microscopic morphology of the lower surface of USRP, USRP theoretical analysis and processing experiments are carried out. Firstly, the spatial motion trajectory of tool head by USRP is established to reveal formation principle of surface morphology. Additionally, this experiment employs a single-factor experimental design method. The influence law of process parameters and surface roughness is obtained. The results show that the workpiece speed affects the circumferential machining density of the part, and the feed speed affects the axial density of the part. Surface roughness initially decreases and subsequently increases with rising amplitudes and static pressure. It gradually rises with improvement of feed rate and rotational speed. This provides a new way to adjust the surface topography of USRP in the future.
New studies on the radiopurity and performances of Cs2ZrCl6 crystal scintillators
Authors: Belli P. , Bernabei R. , Cappella F. , Caracciolo V. , Cerulli R. , Incicchitti A. , Leoncini A. , Merlo V. , Nagorny S.S. , Nahorna V.V. , Wang P. 
Published: May 2024

Abstract
In this work, we present new studies by using different
materials and procedures to improve the performances and radiopurity
of Cs2ZrCl6 (CZC) crystal scintillators. In particular,
measurements of three new CZC crystals as scintillators were
performed over 97.7 days live-time in the low-background DAMA/CRYS
set-up deep underground at the Gran Sasso National Laboratory (LNGS)
of the I.N.F.N. They allow us to derive elements for improvements
towards a possible future use of this kind of detectors in the
search for neutrino-less double beta decay of 94,96Zr and rare
single beta decay of 96Zr.
A configurable ultra-low noise current source for transition-edge sensor characterization
Authors: Li N. , Liao G. , Li Z. , Yan D. , Xu Y. , Zhang Y. , Liu Z. , Yuan S. , Zhang Y. , Gao H. , Li Y. , Gu Y. , Liu C. , Li H. , Ren X. 
Published: May 2024

Abstract
Transition-edge sensors (TESs) are sensitive devices for
detecting photons from millimeter radiation to γ rays. Their
photon counting efficiency and collecting area benefit from
large-array multiplexing scheme, and therefore the development of
multiplexing readout system has been an important topic in this
field. Among the many multiplex techniques, time-division
multiplexing (TDM) superconducting quantum interference device
(SQUID) has been used most widely for TES readout. In this work, we
design a Configurable Ultra-Low Noise Current Source (CLCS) for TES
characterization and as a part of a whole TDM-TES bias control
system. The CLCS is based on the feedback structure of ultra-low
noise instrumentation amplifiers and low-noise, high-resolution
(20 bits) digital-to-analog converter (DAC). CLCS has an ultra-high
resolution of 10 nA in the 0 to 5 mA current output range,
and can perform current-voltage (IV) sweep and bias-step tests to
measure key TES parameters on board. The feedback structure of the
CLCS also avoids the issue of impedance mismatch.
Hydrometeorological response to afforestation in the UK: findings from a kilometer-scale climate model
Authors: Buechel Marcus , Berthou Ségolène , Slater Louise , Keat William , Lewis Huw , Dadson Simon 
Published: May 2024

Abstract
Afforestation is of international interest for its positive benefits on carbon storage, ecology, and society, but its impacts on terrestrial and atmospheric processes are still poorly understood. This study presents the first use of a coupled land surface and convection permitting atmospheric model (CPM) to quantify hydrometeorological effects of afforestation across the United Kingdom, focusing on atmospheric processes often missing in hydrological models. Generating a scenario of 93 000 km2 (40%) additional woodland across the UK, the periods of 2042–2052 and 2062–2072 are analysed. Simulated afforestation alters seasonal and regional UK hydrometeorology. Countrywide runoff increases in all seasons (between 5.4–11 mm and 4.3–8.6% per season) due to elevated subsurface flows from greater soil moisture. Evaporation decreases in summer (−20.6 mm, −10%) but increases in winter (8.1 mm, 15%) whereas rainfall increases throughout all seasons (between 2.2–6.86 mm and 0.9%–2.2% per season). Greater winter rainfall is detected along Great Britain’s west coastline as increased surface roughness produces prolonged and heavier rainfall. In the summer, lower albedo increases potential evapotranspiration and reduces near surface specific humidity: water is locked in deeper soil layers as transpiration diminishes and the topsoil dries out. However, the magnitude of hydrometeorological change due to altered land cover is smaller than the uncertainty in local climate change projections. This work sets a precedent in illustrating the impacts of afforestation on hydrology using a high-resolution CPM and highlights the importance of coupled hydrometeorological processes when investigating land cover impacts on hydrological processes.
Interplay of altermagnetism and weak ferromagnetism in two-dimensional RuF4
Authors: Milivojević Marko , Orozović Marko , Picozzi Silvia , Gmitra Martin , Stavrić Srđan 
Published: May 2024

Abstract
Gaining growing attention in spintronics is a class of magnets displaying zero net magnetization and spin-split electronic bands called altermagnets. Here, by combining density functional theory and symmetry analysis, we show that RuF4 monolayer is a two-dimensional (2D) d-wave altermagnet. Spin–orbit coupling leads to pronounced spin splitting of the electronic bands at the Γ point by

∼

100

meV

and turns the RuF4 into a weak ferromagnet due to nontrivial spin-momentum locking that cants the Ru magnetic moments. The net magnetic moment scales linearly with the spin–orbit coupling strength. Using group theory we derive an effective spin Hamiltonian capturing the spin-splitting and spin-momentum locking of the electronic bands. Disentanglement of the altermagnetic and spin–orbit coupling induced spin splitting uncovers to which extent the altermagnetic properties are affected by the spin–orbit coupling. Our results move the spotlight to the nontrivial spin-momentum locking and weak ferromagnetism in the 2D altermagnets relevant for novel venues in this emerging field of material science research.
The effect of microstructure on the initial corrosion behavior of low carbon steel in simulated coal solution
Authors: He Chunyu , Yu Wei , Tang Di 
Published: May 2024

Abstract
The service life of weathering steels in wagon body was determined by their corrosion resistance directly. This study investigated the influence of microstructure on the initial corrosion behavior of low carbon steels, systematically. The initial corrosion behavior of ferritic-bainitic (F+B) steel, bainitic (B) steel and ferritic-pearlitic (F+P) steel are thoroughly analyzed using coal leach solution immersion test, macroscopic and microcircuit electrochemical methods. The results revealed that F+B steel exhibited the highest corrosion resistance, with the potential of M-A islands surpassing that of ferrite. The initial corrosion initiates from the dissolution of the ferrite matrix, followed by detachment of the M-A islands. The potential of M-A islands is higher than that of bainitic ferrite lath, and the corrosion originates from ferrite dissolution in B steel. Moreover, F+P steel exhibited the largest potential difference between pearlitic and ferrite, leading to initiation of corrosion from the pearlitic corrosion of internal ferrite. Additionally, the multiphase characteristics of P in F+P steel exacerbates their corrosion susceptibility. Overall, the influence of microstructure on the initial corrosion behavior of low carbon steels can be attributed to the potential difference between different phases. Ferrite is the preferentially dissolved phase due to its negative potential difference.
Preliminary fabrication and analysis of a novel porous Cu-CNT composite for photothermal applications
Authors: Nguyen Phan Trong Nghia , Mai Thi Phuong , Nguyen Thi Minh Hien , To Anh Duc , Tran Bao Trung , Doan Dinh Phuong , Oleg Smorygo , Phan Ngoc Minh , Bui Hung Thang 
Published: May 2024

Abstract
Employing Chemical Vapor Deposition (CVD), we created and then investigated properties of a novel carbon-nanotube porous-copper composite (porous Cu-CNT composite). Field-Emission Scanning Electron Microscopy (FESEM) and Energy-Dispersive x-ray Spectroscopy (EDX) clearly revealed successful coating of CNTs, with its density increasing proportionally with the deposition time. In addition, Raman spectroscopy confirmed the constitution of the composite, which included oxygen, copper, and a high level of carbon. We also found out that the higher density of CNTs led to a significant improvement in light absorption in the visible spectrum, compared with the uncoated porous copper. This special property, combined with the porosity of the copper sample, as well as the exceptional thermal and optical properties of CNTs, makes the composite a highly promising candidate for photothermal applications.
Effect of microstructural features on the fatigue behavior of the valve mechanism cam rolling contact
Authors: Su Qian , Wang Chenxue , Deng Guidan , Huang Zeng , Liao Jianbin , Luo Linghui 
Published: May 2024

Abstract
This study introduces a methodology that incorporates gradient structural features and crystal plasticity for assessing contact fatigue in engine valve cams. It explored the influence of grain characteristics and structural gradients on fatigue failure through the lens of Plastic Strain Energy Density (PSED). Findings indicate that variability in crystal orientation significantly impacts PSED and subsequent crack initiation. Additionally, shot peening induces a gradient in grain size, promoting orderly deformation, stress alleviation, and improved fatigue resistance. The study suggests that an optimal fatigue resistance in cam contacts is achievable with a gradient layer comprising 75% volume fraction, which strikes a balance between cost and technical feasibility.
Robustness of probability routing strategy in interconnection networks
Authors: Ma Jinlong , Ma Jiaxin , Wei Jindong 
Published: May 2024

Abstract
With the rapid development of complex networks, the research on robustness has gradually attracted the attention of scholars. In this paper, the research mainly focuses on the analysis of the stability and vulnerability of probability routing strategy on interconnection networks. Firstly, random attacks or target attacks are carried out on the network, and then its maximum connected subgraph is calculated, and the routing strategy is applied to the maximum connected subgraph. This paper evaluates the strategy’s robustness by examining some network parameters. Simulation outcomes reveal that in comparison to effective routing and the shortest path routing strategies, the probability routing strategy demonstrates superior robustness, evidenced by its performance in terms of network traffic capacity and average path length.
Correction for geometric distortion in the flattened representation of pipeline external surface
Authors: Cheng Xiaoqi , Zhong Baiyu , Tan Haishu , Qiao Jian , Yang Jingwei , Li Xiaosong 
Published: May 2024

Abstract
Conventional cameras often produce external pipeline surface images with significant perspective-projection distortions, making determining the type and size of defects on the pipeline surface difficult. To address this issue, we present a novel approach for correcting the geometric distortion of a constant diameter pipeline (CDP) external surface image based on apparent contour pairs (ACPs). First, the camera is calibrated and the real projection position of ACPs accurately extracted. Second, a single-view perspective projection model of the CDP is adopted to realize a three-dimensional reconstruction of the pipeline. Subsequently, the flattened image of the CDP’s outer surface is obtained by performing equidistant sampling of cross sections, determining the visibility of discrete points, and mapping projection points onto a flat surface. Simulations and real experiments demonstrated the high accurate method in the correction of CDP images. Experiments conducted under different outdoor scenarios confirmed the robustness of the proposed method.
Improved mountain gazelle optimizer based interactive distributed strategy to solving large scale OPF
Authors: Mahdad Belkacem 
Published: May 2024

Abstract
This paper focuses on solving the multi-objective optimal power flow of large-scale power systems under critical loading margin stability with accuracy using a novel improved mountain gazelle optimizer (IMGO)-based flexible distributed strategy. Multi-shunt compensator-based flexible alternative current transmission systems (FACTS), such as SVC and STATCOM devices, are integrated at specified locations to exchange reactive power with the network. Several metaheuristic methods can solve the standard OPF related to small and medium test systems. However, by considering large-scale electric systems based on FACTS devices and renewable energy and by considering the operation under loading margin stability, the majority of these techniques fail to achieve a near-global solution because of the high dimension and nonlinearity of the problem to be solved. This study proposes the Multi-Objective OPF-Based Distributed Strategy (MO-OPFDS), a new planning strategy that optimizes individually and simultaneously various objective functions, in particular the total power loss (T∆P), and the total voltage deviation (T∆V). Standard MGO search is enhanced by automatically balancing exploration and exploitation throughout the search. The robustness of the proposed variant was validated on a large electric test system, the IEEE 118-Bus, and on the Algerian Network 114-Bus under normal conditions and at critical loading margin stability. The obtained results compared with several recent techniques clearly confirm the high performance of the proposed method in terms of solution accuracy and convergence behavior.
Effectiveness of wind-constrained sea-ice momentum on formation of sea-ice distribution and upper halocline of Arctic Ocean in climate model
Authors: Ono Jun , Komuro Yoshiki , Tatebe Hiroaki , Kimura Noriaki 
Published: May 2024

Abstract
Initialization of sea ice and the upper halocline in the Arctic Ocean is crucial for sea-ice prediction, but their representation in climate models still remains biased. Here, using historical and four different simulations by a single climate model, we find that constraining the sea-ice momentum by surface wind stress contributes to a better representation of the sea-ice velocity, area, and concentration. Moreover, the wind-constrained sea-ice drift modifies the underlying ocean structure via ice-ocean stress, leading to an improved climatological halocline’s vertical structure in the Canada Basin. This is because the excessively represented negative wind and ice-ocean stress curl in the climate model is weakened when constraining the sea-ice momentum and consequently the downward vertical speed, including the Ekman pumping, is also weakened at depths of 0–500 m, alleviating the deepening of isohalines. From these results, the improvement of sea-ice and ocean states by constraining sea-ice momentum is expected to make sea-ice prediction more accurate.
Against the Standard View, Part Two
Authors: Foley Richard 
Published: May 2024

Abstract
Contrary to the standard view, truth-related considerations on their own rarely make it appropriate to believe something. The only exceptions are when a claim is completely certain. Otherwise, issues of intellectual risk come into play, and a mixture of truth-related and non-truth-related determines whether there are adequate reasons to believe. A way of trying to salvage the standard view is to argue it’s never reasonable to have full-stop beliefs in claims that aren’t certain, but these arguments fail. Having such beliefs is a deep-seated feature of our real-world intellectual lives. Not dealing with questions of what can make it appropriate to have them leaves a hole in the middle of an epistemology. In addition, there are other crippling problems for the standard view. When we deliberate about something, what’s at stake is whether our attitude about it should be different or the same going forward, but the standard view has nothing to say about this. It’s wholly concerned with current attitudes and current circumstances. Treating questions of reasonability in terms of the appropriateness of change is a corrective to the standard view’s fixations on truth-related considerations and the current moment. In addressing these questions, truth-related considerations are relevant but so are non-truth-related considerations and alterations in the current circumstances.
Toward a Less Constricted Epistemology
Authors: Foley Richard 
Published: May 2024

Abstract
Epistemologies subscribing to the standard view are exceptionally narrow. They limit themselves to beliefs or degrees of confidence, the current moment, and truth-related considerations. A less constricted epistemology acknowledges that beliefs, degrees of confidence, and intellectual commitments all play vital roles in our intellectual lives, that the key issue in overseeing all these attitudes is whether it’s appropriate to revise or add to them for purposes going forward, and that a mixture of practical, political, ethical, and intellectual considerations beyond the current moment, not just ones about current likelihood, determine what’s appropriate. This approach has greater resources to explain how we exercise control over our views about important issues, and hence why we're responsible, and at times blameworthy, for having these views. In the common parlance, it allows for “encroachment.” The widespread use of this term, with its derogatory connotation of a trespass beyond proper limits, is itself suggestive of the deep hold of the standard view. Its vision of an untainted realm in which only truth-related considerations determine the reasonability of our belief-like attitudes may be tantalizing, but it’s illusory.