bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effects of Particle Size and Solid Loading on Stereolithography for Preparation of Diamond-Based Composites
Authors: Zhang Zongyan , Zhang Ling , Wang Qiuxia , Huang Jiangtao , Kong Lingbing , Han Peigang , He Bin 
Published: August 2023

Abstract
3D printing is a revolutionary technology that can easily produce complex shapes with low cost and high efficiency. In recent years, technologies for 3D printing have been developed rapidly for polymers, metals, ceramics, and composite materials. Due to its advantages in configuration, 3D printing has also been expected to be a powerful method for preparing diamond-based composites and promoting the applications of diamonds as well. In this paper, stereolithography printing technology is employed to prepare diamond-based composites with special attention to slurry preparation and its stereolithography performance. The impact of diamond particle size, solid loading, and exposure time on the photocuring performance of the diamond slurry are investigated systematically. In addition, the correlation between the thermal conductivity of the printed materials with particle size and solid loading is also studied. The highest thermal conductivity in this study is 1.32 W/(m·K), achieved with an average particle size of 15 μm and a solid loading of 75 wt%. The results show the great potential of preparing diamond-based composites by 3D printing and provide theoretical and technical guidance for further research.
Time Dependence of Viscosity of Alkali-Activated Fly Ash Based Geopolymer Mortar
Authors: Li Yanghang , Zheng Xiong , Wang Jingsong , Yu Xingyu 
Published: August 2023

Abstract
FA was used as the raw material, and the net slurry of FA base Geopolymer was set as the control group to study the influence of sand content, gradation, reaction temperature and time on the time dependence of the viscosity of alkali-activated fly ash based geopolymer mortar. The experimental results show that the curing reaction of alkali-activated fly ash based geopolymer mortar was affected by the temperature dependence of fluid viscosity and the activation energy of the chemical reaction, which is relatively complex. This paper will divide the whole polymerization process into three stages to elaborate. The increase of sand cement ratio will increase the viscosity of FA base polymer mortar. If the sand is too coarse or too fine, the viscosity of FA base polymer mortar will increase significantly, and the fine sand has a greater impact on the viscosity of FA base polymer mortar than the coarse sand. Increasing temperature will significantly accelerate the reaction speed and increase the influence of chemical reaction activation energy on the viscosity of the system while the too high temperature will make the viscosity of the system decrease more significantly in the reaction. This study will reveal the intrinsic relationship between the viscosity of geopolymer and the reaction process, the reaction mechanism of the curing process so that the reaction stage can be represented by the viscosity state of the slurry.
Microstructure and Properties of Cr8 Cold Work Die Steel by Spray Forming, Traditional Casting, and Forging
Authors: Liu Jihao , Zhou Jian , Wu Huibin , Ma Dangshen , Chi Hongxiao 
Published: August 2023

Abstract
In this paper, DC53 cold work dies steel bars with the same specification (φ150 mm) was prepared by spray forming and traditional casting and forging technology. Through the characterization of microstructures using various methods such as OM, SEM, EBSD, and XRD, the mechanical performance testing of hardness, impact resistance, bending strength, and wear resistance, the microstructure characteristics, and mechanical properties differences between the DC53 cold work die steel produced by the two methods were systematically compared. The experimental results show that in terms of microstructure, the carbides in the DC53 cold work die steel produced by the traditional casting and forging process are distributed in a reticular pattern. While the carbide in the DC53 cold work dies steel produced by the spray forming process is finer and uniformly distributed, with higher uniformity across the entire cross-section. In terms of mechanical properties, the DC53 cold work die steel produced by spray forming exhibits superior hardness, impact toughness, bending strength, and isotropy, while the traditional casting and forging DC53 cold work die steel has better wear resistance.
In-plane equivalent modulus of a novel zero Poisson’s ratio honeycomb structure
Authors: Ling He , Wang Zi Hao , Yao Xu Zhao , Xiao Yi Bing 
Published: August 2023

Abstract
This paper proposed a new zero-Possion’s ratio (ZPR) honeycomb structure. The proposed ZPR honeycomb structure improves the traditional semi-reentrant honeycomb structure by introducing vertical cell walls and changing the topological structure between cells to achieve better in-plane deformation capability. The in-plane modulus of the structure was constructed during this research by a mathematical framework and a FEM model. The test specimen of the construction was created using the Stereolithography Apparatus (SLA) technology, and an axial compression experiment was utilized to confirm the model’s accuracy and the zero-ratio Poisson’s property. Geometrical parameters are also investigated to ascertain the relationship between the new zero-Poisson ratio honeycomb structure’s geometrical characteristics and the structure’s flexibility.
Mechanical and permeability tests under the influence of geomembrane temperature
Authors: Ren Hao , Wang Zhifeng 
Published: August 2023

Abstract
Aquatic solar energy cross-season heat-storage technology can store and transfer abundant solar energy from the non-heating season to the heating season, which is one of the important technical routes for renewable energy to be used for clean building heating. Anti-seepage components are an important part of the thermal storage of the water body. As a common anti-seepage material for the thermal storage of the water body, a geomembrane is laid on the pool body and the top cover. In this paper, the mechanical and permeability changes of two kinds of geomembranes are analyzed based on the tests under different temperature environments. The results show that GM1 has better thermal stability. The elongation at break of GM1 increases by 33% and GM2 by 189% when the temperature rises by 40 °C. The osmotic coefficient of GM1 is reduced by 45% and GM2 by 58%.
The Effect of Temperature and Load on the Current Carrying and Erosion Behavior of Metal-Impregnated Pantograph Strip
Authors: Guan Wei , Long Jiangqi , Yin Meigui 
Published: August 2023

Abstract
As an important current-collecting component of the electric locomotive, the pantograph strip may increase its surface temperature due to catenary vibration, friction heat generation, arc burning, catenary hard spots, and other reasons during actual operation. Given the action of electric current, an electrochemical reaction is unavoidable on the contact surface. Under low voltage DC conditions, the influence of temperature and load on relevant electrical and tribological parameters of the pantograph strip was studied using self-developed multi-functional friction and wear tester and changing forward load, surface temperature, etc. The electrochemical reaction was performed at 3.5 wt% NaCl. The results showed that with the increase in temperature, the initial contact resistance, friction coefficient, wear, and corrosion resistance of the surface material of the sample decreased, and the wear amount increased significantly.
Preparation of Ternary Core-Shell Structure for Room Temperature 1-Butylamine Sensing Application
Authors: He Peng , Fu Haitao , Yang Xiaohong , An Xizhong 
Published: August 2023

Abstract
In this work, platinum (Pt) loaded indium oxide (In2O3)/zinc sulfide (ZnS) nanocomposites were synthesized through simple and environmentally friendly methods. The platinum loading with optimal sensing performance was determined by changing the amount of chloroplatinic acid hexahydrate. These materials can detect volatile organic compounds near room temperature (50°C). When these sample sensors were exposed to 1-butylamine (100 ppm), the optimum operating temperature was 50°C for Pt/In2O3/ZnS nanocomposites and 130°C for Pt/In2O3 nanocomposites. The 5% Pt/In2O3/ZnS sensor exhibits the highest response among them. This study shows that the Pt-loaded In2O3/ZnS nanocomposites are promising 1-butylamine sensor materials at room temperature.
Nonlinear self-action of ultrashort guided exciton–polariton pulses in dielectric slab coupled to 2D semiconductor
Authors: Benimetskiy F A , Yulin A , Mikhin A O , Kravtsov V , Iorsh I , Skolnick M S , Shelykh I A , Krizhanovskii D N , Samusev A K 
Published: August 2023

Abstract
Recently reported large values of exciton–polariton nonlinearity of transition metal dichalcogenide (TMD) monolayers coupled to optically resonant structures approach the values characteristic for GaAs-based systems in the regime of strong light-matter coupling. Contrary to the latter, TMD-based polaritonic devices remain operational at ambient conditions and therefore have greater potential for practical nanophotonic applications. Here, we present the study of the nonlinear properties of Ta2O5 slab waveguide coupled to a WSe2 monolayer. We confirm that the hybridization between the waveguide mode and the exciton resonance in WSe2 gives rise to the formation of guided exciton–polaritons with Rabi splitting of 36 meV. By measuring transmission of ultrashort optical pulses through this TMD-based polaritonic waveguide, we demonstrate the strong nonlinear dependence of the output spectrum on the input pulse energy. We develop a theoretical model that shows agreement with the experimental results and gives insights into the dominating microscopic processes which determine the nonlinear pulse self-action: Coulomb exciton–exciton interaction and scattering to an incoherent excitonic reservoir. Based on the numerical simulation of nonlinear phenomena in our polariton system, we conclude that it may support a quasi-stationary solitonic regime of pulse propagation at intermediate pump energies. Our results provide an important step for the development of nonlinear on-chip polaritonic devices based on 2D semiconductors.
Experimental investigation and Taguchi optimization of FDM process parameters for the enhancement of tensile properties of Bi-layered printed PLA-ABS
Authors: Rasheed Adnan , Hussain Muhammad , Ullah Shafi , Ahmad Zeeshan , Kakakhail Hasnain , Riaz Asim Ahmad , Khan Imran , Ahmad Sajjad , Akram Waseem , Eldin Sayed M , Khan Ilyas 
Published: August 2023

Abstract
Additive manufacturing (AM) technology has gained significant popularity, among which Fused Deposition Modeling (FDM) has emerged as the predominant technique for 3D printing. FDM offers the unique ability to achieve the desired and tailored engineering properties required for specific applications. This experimental study investigates the influence of varying FDM process parameters on the mechanical properties and highlights the optimal set of parameters for better tensile strength for a bi-layered composite of PLA-ABS (polylactic acid and acrylonitrile butadiene styrene). Also, it investigates the most-to-least influential printing parameters. Four process parameters were played out i.e., Infill density (50%, 75%, and 100%), number of layers (20,25 and 30), printing speed (20 mm sec−1, 40 mm sec−1, and 60 mm sec−1), and bed temperature (90 °C, 95 °C, and 100 °C), while keeping other parameters constant. Taguchi optimization technique was used for optimization and experiments were designed according to Taguchi orthogonal array L9 (3 4). After printing, the samples were evaluated for tensile properties and the results were analyzed. It is found that the infill density is the most influential parameter while bed temperature is the least influential. Infill density of 75%, 30 layers per part, a printing speed of 20 mm sec−1, and a bed temperature of 100 °C are the optimal set of parameters for better tensile strength. Alongside, percent elongation, printing time, and strength-to-weight ratio were also analyzed and correlated.
Post-selection in noisy Gaussian boson sampling: part is better than whole
Authors: Yang Tian-Yu , Shen Yi-Xin , Cao Zhou-Kai , Wang Xiang-Bin 
Published: August 2023

Abstract
Gaussian boson sampling (GBS) is originally proposed to show quantum advantage with quantum linear optical elements. Recently, several experimental breakthroughs based on GBS pointing to quantum computing supremacy have been presented. However, due to technical limitations, the outcomes of GBS devices are influenced severely by photon loss. Here, we present a practical method to reduce the negative effect caused by photon loss. We first show with explicit formulas that a GBS process can be mapped to another GBS processes. Based on this result, we propose a post-selection method which discards low-quality data according to our criterion to improve the performance of the final computational results, say part is better than whole. As an example, we show that the post-selection method can turn a GBS experiment that would otherwise fail in a ‘non-classicality test’ into one that can pass that test. Besides improving the robustness of computation results of current GBS devices, this post-selection method may also benefit the further development of GBS-based quantum algorithms.
Cell type and gene regulatory network approaches in the evolution of spiralian biomineralisation
Authors: Sleight Victoria A 
Published: August 2023

Abstract
Biomineralisation is the process by which living organisms produce hard structures such as shells and bone. There are multiple independent origins of biomineralised skeletons across the tree of life. This review gives a glimpse into the diversity of spiralian biominerals and what they can teach us about the evolution of novelty. It discusses different levels of biological organisation that may be informative to understand the evolution of biomineralisation and considers the relationship between skeletal and non-skeletal biominerals. More specifically, this review explores if cell type and gene regulatory network approaches could enhance our understanding of the evolutionary origins of biomineralisation.
Dynamic applicability domain (dAD): compound–target binding affinity estimates with local conformal prediction
Authors: Oršolić Davor , Šmuc Tomislav 
Published: August 2023

Abstract

Motivation
Increasing efforts are being made in the field of machine learning to advance the learning of robust and accurate models from experimentally measured data and enable more efficient drug discovery processes. The prediction of binding affinity is one of the most frequent tasks of compound bioactivity modelling. Learned models for binding affinity prediction are assessed by their average performance on unseen samples, but point predictions are typically not provided with a rigorous confidence assessment. Approaches, such as the conformal predictor framework equip conventional models with a more rigorous assessment of confidence for individual point predictions. In this article, we extend the inductive conformal prediction framework for interaction data, in particular the compound–target binding affinity prediction task. The new framework is based on dynamically defined calibration sets that are specific for each testing pair and provides prediction assessment in the context of calibration pairs from its compound–target neighbourhood, enabling improved estimates based on the local properties of the prediction model.

Results
The effectiveness of the approach is benchmarked on several publicly available datasets and tested in realistic use-case scenarios with increasing levels of difficulty on a complex compound–target binding affinity space. We demonstrate that in such scenarios, novel approach combining applicability domain paradigm with conformal prediction framework, produces superior confidence assessment with valid and more informative prediction regions compared to other ‘state-of-the-art’ conformal prediction approaches.

Availability and implementation
Dataset and the code are available on GitHub (https://github.com/mlkr-rbi/dAD).
Community microgrid: an approach towards positive energy community in an urban area of Dhaka, Bangladesh
Authors: Zeyad Mohammad , Ahmed S M Masum , Hasan Sayeed , Mahmud Dewan Mahnaaz 
Published: August 2023

Abstract
The pollution and toxic greenhouse gases produced by fossil fuel combustion are troubling as global energy demand continues to rise. To mitigate the consequences of global warming, a transition to sustainable energy sources is necessary. This manuscript presents a feasible community microgrid design in Hazaribagh, Dhaka based on meteorological data that leads to photovoltaic installation on the rooftop of a local community building. This study shows a microgrid design of a system with the lowest cost of energy and a large renewable fraction, which is analysed using the HOMER Pro software. Using real-time data, analysis of the system cost, cost of energy, renewable fraction, unmet load, energy purchased and energy sold is discussed. A suitable case for electrification is also identified and presented for the selected community. The proposed case yields a cost of energy of $0.0357/kWh, which is 52% less than the current tariff rate, with a 70% renewable fraction. This study will provide people in this community with more green energy at a lower cost; in addition, this designed microgrid sells additional energy to the grid to avoid possible power outages. The potential for a positive energy community is also investigated in terms of energy consumption and renewable output of the planned microgrid.
Role of School Quality and Neighborhood Disadvantage in Educational Attainment: Do They Vary by Race?
Authors: Joo Young Sun , Kim Youngmi 
Published: August 2023

Abstract
Schools and neighborhoods are adolescents’ primary environments, and each has a significant influence on their academic success. The majority of studies on educational attainment have examined the impact of a single context—either the school or the neighborhood—suggesting mixed findings on school and neighborhood effects as well as potential disparities across racial groups. To address this gap, the present study examined the roles of school quality and neighborhood disadvantage on educational attainment for White and Black adolescents. This study used the National Longitudinal Study of Adolescent to Adult Health data collected from a nationally representative sample of U.S. adolescents, merging multiple data sources including in-home surveys, school administrator surveys, student-level educational records, and contextual data. Educational attainment was measured using college enrollment and graduation status. School quality was a significant predictor of college enrollment and graduation for both White and Black adolescents. Neighborhood disadvantage is significantly associated with college enrollment for both racial groups; however, college graduation is significant only for White adolescents. These findings suggest that improving school quality is particularly important for educational attainment regardless of racial background. The article concludes with a discussion on the differential roles of school quality and neighborhood disadvantage in relation to White and Black adolescents.
Gastrointestinal bleeding associated to aortic valve stenosis (Heyde’s syndrome): a case series and literature review
Authors: De Carlini Caterina Chiara , Cantù Edoardo , Erba Nicoletta , Maggiolini Stefano 
Published: August 2023

Abstract

Background
The association among aortic valve stenosis, gastrointestinal bleeding, and anaemia due to arteriovenous malformations, known as Heyde’s syndrome (HS), is poorly understood and controversial. Recently, acquired Type 2A von Willebrand syndrome (vWS 2A) was shown to be the most likely aetiological mechanism of anaemia.

Case summary
We report two cases of HS in whom the percutaneous replacement of the aortic valve was resolutive for iron deficiency anaemia.

Discussion
Iron deficiency anaemia and aortic stenosis are a common association in the elderly, so much that frequently; in such cases, the correction of the valvulopathy is often excluded as pre-operative anaemia is associated with higher morbidity and mortality. From this perspective, the correct diagnosis of HS is crucial to guide the decision to correct valvulopathy, as valvular substitution is resolutive for both anaemic disorders and aortic stenosis
Historical exposomics: a manifesto
Authors: Aurich Dagny , Horaniet Ibanez Aida , Hissler Christophe , Kreipl Simon , Pfister Laurent , Schymanski Emma L , Fickers Andreas 
Published: August 2023

AbstractThe exposome complements information captured in the genome by covering all external influences and internal (biological) responses of a human being from conception onwards. Such a paradigm goes beyond a single scientific discipline and instead requires a truly interdisciplinary approach. The concept of “historical exposomics” could help bridge the gap between “nature” and “nurture” using both natural and social archives to capture the influence of humans on earth (the Anthropocene) in an interdisciplinary manner. The LuxTIME project served as a test bed for an interdisciplinary exploration of the historical exposome, focusing on the Belval area located in the Minett region in southern Luxembourg. This area evolved from a source of mineral water to steel production through to the current campus for research and development. This article explores the various possibilities of natural and social archives that were considered in creating the historical exposome of Belval and reflects upon possibilities and limitations of the current approaches in assessing the exposome using purely a natural science approach. Issues surrounding significance, visualization, and availability of material suitable to form natural archives are discussed in a critical manner. The “Minett Stories” are presented as a way of creating new historical narratives to support exposome research. New research perspectives on the history of the Anthropocene were opened by investigating the causal relationships between factual evidence and narrative evidence stemming from historical sources. The concept of historical exposome presented here may thus offer a useful conceptual framework for studying the Anthropocene in a truly interdisciplinary fashion.
Distance in Disconnection: The Varied Impact of Core Network Losses on Loneliness Among Older Europeans
Authors: Sun Haosen , Schafer Markus H 
Published: August 2023

Abstract

Objectives
Research among older adults reveals that the loss of core network members is a risk factor for loneliness. Still, it is not clear whether all such losses induce similar levels of loneliness, particularly as network members are distributed at varied geographic distances. Neither is it clear whether tie addition—the other ubiquitous aspect of network turnover in later life—offsets the loneliness that arises from different network loss scenarios.

Methods
This paper scrutinized core network losses across multiple relationship–distance scenarios. We used the fourth and sixth waves of data from the Survey of Health, Ageing, and Retirement in Europe and estimated fixed-effect models.

Results
The loss of a child from a core network increases feelings of loneliness across variant distances, especially when not complemented by additional connections. Losing relatives or nonkin core connections in proximity (within 1 km and 5 km radius, respectively) is also associated with increased loneliness, yet such effects are also largely mitigated by the addition of new core network members.

Discussion
The relationship between core network member losses and loneliness can significantly differ based on the nature of the lost connection and its geographic distance. Active rebalancing of one’s core network following losses and proactive network expansion can serve as pivotal strategies to prevent loneliness for the aging population.