bluuebunny/crossref_metadata_2025_split huggingface dataset:
A review of low-temperature plasma-assisted machining: from mechanism to application
Authors: Liu Jiyu , Li Yuheng , Chen Yang , Zhou Yuyang , Wang Shuaishuai , Yuan Zizhen , Jin Zhuji , Liu Xin 
Published: April 2023

AbstractMaterials with high hardness, strength or plasticity have been widely used in the fields of aviation, aerospace, and military, among others. However, the poor machinability of these materials leads to large cutting forces, high cutting temperatures, serious tool wear, and chip adhesion, which affect machining quality. Low-temperature plasma contains a variety of active particles and can effectively adjust material properties, including hardness, strength, ductility, and wettability, significantly improving material machinability. In this paper, we first discuss the mechanisms and applications of low-temperature plasma-assisted machining. After introducing the characteristics, classifications, and action mechanisms of the low-temperature plasma, we describe the effects of the low-temperature plasma on different machining processes of various difficult-to-cut materials. The low-temperature plasma can be classified as hot plasma and cold plasma according to the different equilibrium states. Hot plasma improves material machinability via the thermal softening effect induced by the high temperature, whereas the main mechanisms of the cold plasma can be summarized as chemical reactions to reduce material hardness, the hydrophilization effect to improve surface wettability, and the Rehbinder effect to promote fracture. In addition, hybrid machining methods combining the merits of the low-temperature plasma and other energy fields like ultrasonic vibration, liquid nitrogen, and minimum quantity lubrication are also described and analyzed. Finally, the promising development trends of low-temperature plasma-assisted machining are presented, which include more precise control of the heat-affected zone in hot plasma-assisted machining, cold plasma-assisted polishing of metal materials, and further investigations on the reaction mechanisms between the cold plasma and other materials.
The Wigner global wave front set in spaces of tempered ultradistributions
Authors: Asensio Vicente 
Published: April 2023

AbstractIn this paper we introduce and study global wave front sets in terms of the $$\tau $$
τ
-Wigner transform in global ultradifferentiable classes of Beurling type modulated with weight functions in the sense of Braun, Meise, and Taylor, and we compare it with other wave front sets existing in the literature defined by different time-frequency analysis tools, such as the short-time Fourier transform or Gabor frames. Conditions for the equality of these wave front sets are provided and some examples are given.
Stability of Fructooligosaccharides in Convectively Dried Fruits After Initial Osmoconcentration
Authors: Łuczak Patrycja , Klewicki Robert , Klewicka Elżbieta 
Published: April 2023

AbstractThe aim of this study was to determine the effect of temperature and time of convective drying on the content of fructooligosaccharides (FOS) in apples, plums and strawberries to which FOS had been introduced by osmoconcentration. The share of oligosaccharides in total sugars was analyzed. In apple tissue, fructooligosaccharides were stable in the temperature range 40–80 °C during drying for up to 8 h. Convective drying of osmotically dehydrated strawberries caused FOS losses; the FOS retention after 8 h at 80 °C was 40%. In the case of plums, 40% retention was recorded after just two hours at 80 °C. Therefore, in the case of some fruits, obtaining a satisfactory level of fructooligosaccharides in the dried material with the assumed level of dry substance requires the determination of appropriate process parameters.
Supply chain traceability using blockchain
Authors: Azevedo Pedro , Gomes Jorge , Romão Mário 
Published: April 2023

AbstractIn the current global marketplace supply chains can span a huge number of countries, cross many borders and require interoperation of a multitude of organizations. This vastness of supply chains impacts business competitiveness since it adds complexity and can difficult securing traceability, chain of custody and transparency. We propose that assuring chain of custody and traceability via Blockchain (BC) allows organizations to demonstrate product provenance, integrity and compliance. This work proposes that to effect true traceability the more complete approach is to connect both the Supply Chain Actors (SCAs) and products identifications using digital certificates. A Blockchain is used to manage the traceability of products and validation of the identities. Importing, verifying and storing the certificates uses an off-chain data storage solution for products certificates, IDs and data (i.e., WalliD) . To create, validate the certificates and setup the chain of trust a Public Key Infrastructure (PKI) was designed as part of the proposal. Our study follows a Design Science research approach aimed to analyse the requirements and propose a solution to a more complete traceability in supply chains. The results were architectural artifacts, including an Ethereum Smart Contract and a PKI based certificate authentication system. The implementation of these deliverables allow for a supply chain system that can provide decentralized and trustful assurance of the provenance, chain of custody and traceability functionalities for all the Organizations and also for the final consumers.To exemplify the problem and demonstrate the applicability of the solution, its potential and benefits we applied it to a real food supply chain use case that already uses provenance certificates and stored them in the blockchain using the before mentioned SmartContract to assure and demonstrate the chain of custody and traceability of the food produce.
Nanostructured Ni-MoCx: An efficient non-noble metal catalyst for the chemoselective hydrogenation of nitroaromatics
Authors: Zhang Yifei , Li Zhiwen , Zhang Jingjing , Xu Liangliang , Han Zhong-Kang , Baiker Alfons , Li Gao 
Published: April 2023

AbstractCatalysts for chemoselective hydrogenation are of vital importance for the synthesis of various important chemicals and intermediates. Herein we developed a simple method for preparing a highly efficient Ni-MoCx nanocomposite catalyst via temperature-programmed carburization of a polyoxometalate precursor. X-ray diffraction (XRD), scanning transmission electron microscopy (STEM), X-ray photoelectron spectroscopy (XPS), and X-ray absorption spectroscopy (XAS) analyses indicate that the resulting mesoporous nanocomposite catalyst is made up of well-dispersed metallic nickel particles embedded in a MoCx matrix. This catalyst exhibits high activity and selectivity (> 99%) in the hydrogenation of various substituted nitroaromatics to corresponding anilines. The high efficiency is attributed to the intimate contact of the constituents favoring electron transfer and hydrogen adsorption. Dihydrogen is physisorbed on the carbide support and dissociates on the nickel particles, as evidenced by Mo K-edge X-ray absorption near-edge structure (XANES) spectra, density functional theory (DFT), and hydrogen—deuterium exchange. The remarkable catalytic performance of the catalyst could be traced back to the synergistic interaction between the Ni particles and the carbide support. In-situ infrared spectroscopy and DFT simulations indicated that the adsorption/activation of the nitro group is favored compared to that of other substituents at the aromatic ring. In recyclability tests, the Ni-MoCx nanocomposite showed no significant loss of catalytic performance in seven consecutive runs, indicating its robust nature.
Real-time updating of dynamic social networks for COVID-19 vaccination strategies
Authors: Cheng Sibo , Pain Christopher C. , Guo Yi-Ke , Arcucci Rossella 
Published: April 2023

AbstractVaccination strategy is crucial in fighting the COVID-19 pandemic. Since the supply is still limited in many countries, contact network-based interventions can be most powerful to set an efficient strategy by identifying high-risk individuals or communities. However, due to the high dimension, only partial and noisy network information can be available in practice, especially for dynamic systems where contact networks are highly time-variant. Furthermore, the numerous mutations of SARS-CoV-2 have a significant impact on the infectious probability, requiring real-time network updating algorithms. In this study, we propose a sequential network updating approach based on data assimilation techniques to combine different sources of temporal information. We then prioritise the individuals with high-degree or high-centrality, obtained from assimilated networks, for vaccination. The assimilation-based approach is compared with the standard method (based on partially observed networks) and a random selection strategy in terms of vaccination effectiveness in a SIR model. The numerical comparison is first carried out using real-world face-to-face dynamic networks collected in a high school, followed by sequential multi-layer networks generated relying on the Barabasi-Albert model emulating large-scale social networks with several communities.
Experimental simulation of wormhole sanding cavity pattern and microscopic mechanism in heterogeneous weakly-cemented sandstone
Authors: Song Yajun , Dong Changyin , Zhou Bo , Zhan Xinjie , Gwamba Gerald 
Published: April 2023

AbstractSand production has been a shared problem in the development of weakly-cemented sandstone oil reservoirs. Sanding simulation and prediction are of utmost importance for the production optimization of this type of reservoir. For a long time, research on sand production has been centered on “what is produced from the formation,” such as the size and rate of produced sand. However, “what is left inside the formation,” which is the structural change of the rock after sanding, is also another intriguing and important topic for the management of sand-prone reservoirs. Some related studies have been carried out, and they have proposed that wormhole-like pore throat will appear after sand production, but the precise morphological description and formation mechanism are still lacking. A series of sanding simulation experiments are performed to deepen the understanding of the sanding cavity pattern and its mechanism. The experiments are carried out using a visual sanding simulation apparatus. Through this, the complex wormhole sand production patterns are found and classified into single-branch wormhole cavity patterns and multi-branch wormhole cavity patterns. The extension processes of those different patterns are also demonstrated. Besides, this work discusses the change in the reservoir flowability performance in wormhole sanding mode, and the near-well flowability might be improved by actively inducing weakly-cemented sandstone to create a bigger aperture wormhole sanding pattern. Through the visual microscopic system, the sand competitive detachment mechanism that induces wormhole extending is revealed, along with the cavities concurrent extension mechanism that induces multi-branch wormhole extending. Moreover, this work discusses the microscopic detachment forms which help explain the sand-produced rate from weakly-cemented sandstone. This work enhances and creates a novel understanding of the sanding patterns and mechanisms in weakly-cemented heterogeneous reservoirs, which is beneficial to providing direct guidance for sand production prediction and sand control optimization.
Application of 3D-scanning for structural and geometric assessment of aerospace structures
Authors: van Brügge Lina , Çetin Kaan M. , Koeberle Sebastian J. , Thiele Moritz , Sturm Fabian , Hornung Mirko 
Published: April 2023

AbstractThe geometric assessment of physical demonstrators are an integral part of several research projects conducted at the Chair of Aircraft Design at the Technical University of Munich. The projects range from several research UAVs, a sailplane morphing wing to propellers. There are different project objectives like the assessment of manufacturing deviations, design and function validation as well as reverse engineering of aerodynamic surfaces for model adaptation and simulation in the projects. Nevertheless, mutual approaches and solutions have been identified. Therefore joint development efforts are undertaken using 3D-scanning technology for data collection and evaluation. This technology captures the surface of a given object typically as a point cloud with comparably high accuracy. Since a manual evaluation process bears disadvantages in terms of reproducibility, custom post-processing software tools are developed. Global geometry data, like wing platform data, as well as airfoils can be extracted from a surface point cloud to analyze UAV wings or propellers. Airfoils can be derotated, normed and smoothed for aerodynamic analysis with low-fidelity aerodynamic tools, such as XFLR5 or XFOIL. For the analysis of morphing airfoil structures, the scanned geometry is aligned with the desired design airfoil shape so they can be compared. In this paper, analysis methods and several example results are presented.
Hom-Leibniz bialgebras and BiHom-Leibniz dendriform algebras
Authors: Laraiedh Ismail , Silvestrov Sergei 
Published: April 2023

AbstractA notion of a Hom-Leibniz bialgebra is introduced and it is shown that matched pairs of Hom-Leibniz algebras, Manin triples of Hom-Leibniz algebras and Hom-Leibniz bialgebras are equivalent in a certain sense. A notion of Hom-Leibniz dendriform algebra is established, their bimodules and matched pairs are defined and their properties and theorems about their interplay and construction are obtained. Furthermore, the concept of BiHom-Leibniz dendriform algebras is introduced and discussed, their bimodules and matched pairs are constructed and properties are described. Finally, the connections between all these algebraic structures using $${\mathcal {O}}$$
O
-operators are shown.
Prognostic significance of controlling nutritional status in older adults with heart failure with preserved ejection fraction: a prospective comparative study with other objective nutritional indices
Authors: Chen Ying , Zheng Hui , He Yu 
Published: April 2023

Abstract
Objective
We explored the prognostic significance of controlling nutritional status (CONUT) score in older adults with heart failure with preserved ejection fraction (HFpEF) and compared CONUT with other objective nutritional indices.

Methods
This is a single-center retrospective cohort study in older adult coronary artery disease patients undergoing HFpEF. Clinical data and laboratory results were collected before discharge. CONUT, geriatric nutritional risk index (GNRI), and prognostic nutritional index (PNI) were calculated according to the formula. The primary endpoint of this study was readmission due to heart failure and all-cause mortality in the first year after hospitalization.

Results
A total of 371 older adults were enrolled. All patients were discharged and followed up for 1 year, and readmission for heart failure was 26% while all-cause mortality was 20%. Compared with the none and mild malnutrition risk group, the readmission rate for heart failure (HF) within 1 year (36% vs. 18%, 23%) and all-cause mortality rate in the moderate and severe malnutrition risk group (40% vs. 8%, 0%) were higher (P < 0.05). On multivariate logistic analysis, CONUT was not associated with readmission due to HF within 1 year. CONUT was significantly associated with all-cause mortality independently of GNRI or PNI, after adjustment for major confounders including age, bedridden; length of stay; history of chronic kidney disease; loop diuretics use; angiotensin-converting enzyme inhibitor/angiotensin receptor blocker and beta-adrenergic blocking agents use; New York Heart Association (NYHA) functional class; hemoglobin; potassium; Creatinine; triglycerides; glycosylated hemoglobin; brain natriuretic peptide; left ventricular ejection fraction; GNRI and PNI via multivariable Cox analysis (HR (95% CI) 1.764 (1.503, 2.071); 1.646 (1.359, 1.992); 1.764 (1.503, 2.071), respectively). Kaplan–Meier analysis revealed that the risk of all-cause mortality significantly increased in accordance with a higher CONUT (CONUT 5–12 compare to 0–1:HR (95% CI) 6.16 (3.78, 10.06); CONUT 2–4 compare to 0–1:HR (95% CI) 0.16 (0.10, 0.26)). CONUT showed the best area under the curve value (0.789) for the prediction of all-cause mortality compared with the other objective nutritional indices.

Conclusion
CONUT is a simple and strong prognostic indicator for the prediction of all-cause mortality in older adults with HFpEF.

Clinical Trials.gov Identifier
NCT05586828.
Learning Effectiveness of Semester and Year-Long Study Abroad Programmes: Perspectives of International Students in a UK and China Context
Authors: O’Dea Xianghan , Wang Chen , O’Dea Mike 
Published: April 2023

Abstract
Research on international students’ learning experiences pays much less attention to those studying semester and/or year-long programmes in a country that differs significantly from their home country with respect to culture and the education system. Adopting transformative learning theory as the theoretical framework, this paper explores the learning effectiveness of students on such programme in a Chinese and in a UK university. It analyses the narratives of 27 students in relation to their cognitive and behavioural activities and also their self-reflective and collaborative reflective activities. The findings indicate that these students only partially achieved transformative learning. The main reasons are: (1) the duration of this type of programme was not long enough to achieve a full transformation and (2) both host universities did not include reflection in the learning process properly. This paper makes a contribution to cross-border learning literature in the Chinese and the UK contexts.
Who cheats? Do prosocial values make a difference?
Authors: Kasler Jonathan , Sharabi-Nov Adi , Shinwell Eric S. , Hen Meirav 
Published: April 2023

AbstractResearch has indicated the importance of internal motivation as a factor in reducing academic misconduct in higher education and some commentators have also cited prosocial values as buffers against the temptation to cheat. In light of this research, the goal of the present research was to study the roles of motivation and prosocial values in combating academic misconduct. Specifically, it examined how internal motivation and strong prosocial values might impact the risk of academic misconduct. For this purpose, 455 student participants completed a self-report questionnaire. The results support the hypothesis that high internal motivation and strong prosocial values reduce the tendency to cheat. In comparison, high external motivation and weak prosocial values were associated with higher levels of academic misconduct. In addition, male students were more likely to cheat than their female classmates and science students were more likely to cheat than social science students. The ability to identify factors that reduce the risk of academic misconduct can inform interventions in higher education. According to the present results, such interventions should involve the promotion of prosocial values and enhance student well-being.
Fusobacterium nucleatum: a novel immune modulator in breast cancer?
Authors: Little Alexa , Tangney Mark , Tunney Michael M. , Buckley Niamh E. 
Published: April 2023

AbstractBreast cancer was the most commonly diagnosed cancer worldwide in 2020. Greater understanding of the factors which promote tumour progression, metastatic development and therapeutic resistance is needed. In recent years, a distinct microbiome has been detected in the breast, a site previously thought to be sterile. Here, we review the clinical and molecular relevance of the oral anaerobic bacteriumFusobacterium nucleatumin breast cancer.F. nucleatumis enriched in breast tumour tissue compared with matched healthy tissue and has been shown to promote mammary tumour growth and metastatic progression in mouse models. Current literature suggests thatF. nucleatummodulates immune escape and inflammation within the tissue microenvironment, two well-defined hallmarks of cancer. Furthermore, the microbiome, andF. nucleatumspecifically, has been shown to affect patient response to therapy including immune checkpoint inhibitors. These findings highlight areas of future research needed to better understand the influence ofF. nucleatumin the development and treatment of breast cancer.
PERFORMING AUSTRALIAN ELECTROACOUSTIC WORKS FOR THE PAETZOLD CONTRABASS RECORDER
Authors: Blackburn Alana 
Published: April 2023

AbstractA striking instrumental design innovation in recent years has been the development of the Paetzold ‘square bass’ bass recorders, sparking interest among performers and composers to develop a new approach to contemporary performance practice and electroacoustic composition. This article examines two works by Australian composers that have been performed by the author. Both pieces are written for the Paetzold contrabass recorder in F, applying its unique sound palette within different compositional approaches and structures. The electroacoustic works surveyed also use a fixed media soundscape drawing on varying levels of gesture and improvisation from the live performer(s). The works present different relationships between the pre-recorded soundscape and the contrabass recorder and provide an opportunity for the performer to experiment with the large range of sounds possible. This article also serves as a summary of tools, sounds and techniques for composers interested in writing for the instrument.
PARALLELS AND DIVERGENCES: THREE CASE STUDIES IN THE MUSIC OF MICHAEL HERSCH
Authors: Fox Christopher 
Published: April 2023

AbstractThis article focuses on three recent works by the American composer Michael Hersch: the script of storms (2018), for soprano and orchestra, the chamber opera Poppaea (2019) and the 11-hour trilogy of works that have the overall title sew me into a shroud of leaves (2001–16). A discussion of aspects of these three scores will consider Hersch's deployment of a stylistically consistent musical language, his involvement with the work of the writers Fawsi Karim and Christopher Middleton and his articulation of often substantial spans of time.