bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effect of high pressure-low plasticity burnishing on the mechanical and microstructural behaviour of copper foil interlayered FSW aluminium alloys
Authors: Vignesh A R , R Oyyaravelu 
Published: October 2024

Abstract
This study delves into the impact of high pressure-low plasticity burnishing (HP-LPB) on the mechanical and microstructural behaviour of friction stir welding (FSW) joints, specifically involving AA5052 and AA6082 aluminium alloys. Notably, copper foil (CF) is introduced as a novel element in the HP-LPB process to enhance the weld strength. The experiments were conducted with the tool rotational speeds (TRS) of 1000, 1100, and 1200 RPM, each paired with the welding speeds (WS) of 20, 25, and 30 mm min−1, and tool tilt angle (TTA) of 0°, 1°, and 2°. Mechanical behaviour is assessed through tensile testing along with microhardness measurements, revealing the advantages of HP-LPB with CF in enhancing joint strength and toughness. The microstructural analysis reveals the dissolution of precipitates, highlighting the influential role of copper foil in the improvement of joint efficiency. From the weld without a CF interlayer, a maximum tensile strength of 188 MPa was achieved at a TRS of 1200 RPM, WS of 25 mm min−1 and TTA of 2°. The post-processed FSW sample interlayered with copper foil, exhibited an improvement in joint efficiency by 87% at the optimum process parameter. This research demonstrates that the use of copper foil interlayers combined with HP-LPB treatment can substantially enhance the mechanical properties and structural integrity of FSW aluminum alloys, offering a valuable solution for advanced industrial applications.
Numerical investigation of the effect of laser peen forming process parameters on 1060 aluminium sheets under preload
Authors: Kumar Muramulla Naveen , Tiwari Gaurav , Baral Subrat Kumar , Ratna Sunil B , Dumpala Ravikumar 
Published: October 2024

Abstract
Laser peen forming process changes the shape of the metal sheet or plate by plastic deformation caused by laser induced mechanical shock wave. The bending behavior of 1060 aluminium sheets under laser peen forming (LPF) are studied numerically taking into account the various laser peening process parameters for two distinct cases; with and without preload. Modal analysis has been performed on 3D finite element model (FEM) to stop post-shock oscillations. A time-dependent and space-dependent pressure distribution is applied to the laser-peened area along with preload at the free end. The numerical comparison of bending angles and surface profile of 1060 aluminium sheets under laser peen forming are studied for both the cases, with and without preload. Preloading provides better surface profile for same bending angle for a no laser shock overlap.
A novel step-up modified SEPIC converter to enhance photovoltaic system performance using a hybrid ANN-PSO algorithm
Authors: Moaazer Rawia , Ajel Ahmed R , Bonnya Mahdi F 
Published: October 2024

Abstract
This paper presents a modified SEPIC converter intended for solar applications and high-voltage devices. This design combines a discrete inductor-circuit (3 diodes and 2 inductors) with a switched capacitor-circuit (2 capacitors and 2 diodes), achieving a voltage gain six times the input voltage at a low commitment cycle of 0.5 without using a double inductance. Solar power systems are subject to fluctuations in production due to temperature and radiation changes, which leads to variable and unstable voltage. The SEPIC rectifier converter converts variable voltage into regular DC voltage suitable for powering loads, enhancing the energy extraction efficiency of solar panels. A simulation was performed using Simulink/MATLAB to test the overall performance of the converter based on the ANN-PSO algorithm, where the modified SEPIC was compared with the conventional converter. The results confirmed the effectiveness of the transformer in extracting energy with 100% efficiency from the PV panels. The transformer has proven its effective performance in dealing with photovoltaic systems. The output voltage control was evaluated using a PI controller based entirely on the ANN-PSO optimization algorithm, Where ANN predicts radiation and temperature and trains and teaches it with the pre-existing parameters in the neural to reach the target while the pso algorithm improves the neural results and achieves the optimal performance to reach the best control. and the simulation results confirmed the effectiveness of the proposed approach.
Satellite remote sensing reveals the footprint of biodiversity on multiple ecosystem functions across the NEON eddy covariance network
Authors: Gomarasca Ulisse , Duveiller Gregory , Pacheco-Labrador Javier , Ceccherini Guido , Cescatti Alessandro , Girardello Marco , Nelson Jacob A , Reichstein Markus , Wirth Christian , Migliavacca Mirco 
Published: October 2024

Abstract
Biodiversity relates to ecosystem functioning by modulating biogeochemical cycles of carbon, water, energy, and nutrients within and between multiple biotic and abiotic components of the ecosystems. However, large-scale, systematic measurements of plant biodiversity are still lacking, and the effects of biodiversity on measured biogeochemical processes are understudied. Here, we combined alpha (α) and beta (β) taxonomic measurements, spectral diversity from satellite observations, structural properties of the vegetation, and climatic drivers to assess the effect of biodiversity on ecosystem functional properties. Ecosystem functional properties were computed from eddy-covariance fluxes at 44 sites of the National Ecological Observatory Network. Based on the spectral variation hypothesis, we used the near-infrared reflectance of vegetation (NIRv) derived from Sentinel-2 satellite imagery to compute Rao’s quadratic entropy (Rao Q), a distance metric related to spatial heterogeneity. Using an automatic model averaging technique, we found that biodiversity proxies hold substantial explanatory power when predicting several ecosystem functions related to carbon and water exchange. In particular, NIRv-based Rao Q (RaoQNIRv) reflected positive biodiversity effects on productivity, as expected from the literature. In contrast, traditional taxonomic α-diversity indices were generally not selected as relevant predictors of the ecosystem functional properties. Yet, β-diversity strongly contributed to the prediction of carbon use efficiency, surface conductance, and water use efficiency. We also found that the RaoQNIRv is less affected by issues of saturation and bare soil contribution compared to RaoQNDVI. We show that spectral heterogeneity based on remotely sensed NIRv holds the potential for globally characterizing the biodiversity-ecosystem functioning relationship (BEF). While systematic measurements of taxonomic diversity co-located at biogeochemical measurement stations could reduce the uncertainty surrounding the BEF relationship at whole-ecosystem scale, remotely- sensed metrics characterizing important functional and structural diversity aspects of the landscape will be crucial for continuous spatiotemporal monitoring of biodiversity with relevant implications for ecosystem services to humankind.
Local structure of homogeneous 𝐴𝑁𝑅-spaces
Authors: Valov Vesko 
Published: October 2024

We investigate to what extend finite-dimensional homogeneous locally compact

A
N
R

ANR

-spaces have common properties with topological manifolds. Specially, the local structure of homogeneous

A
N
R

ANR

-spaces is described. Using that description, we provide a positive solution of the problem whether every finite-dimensional homogeneous metric

A
N
R

ANR

-compactum

X
X

is dimensionally full-valued, i.e.

dim
⁡
X
×
Y
=
dim
⁡
X
+
dim
⁡
Y

\dim X\times Y=\dim X+\dim Y

for any metric compactum

Y
Y

.
Light Synth
Authors: Edstrom Brent 
Published: October 2024

Abstract
This chapter provides an overview of Light Synth. It starts with an introduction to Teensy microcontrollers. These are programmed with the same Integrated Development Environment as Arduino microcontrollers. Moreover, PJRC offers the Audio System Design Tool, which provides a helpful visual design tool that makes it easy to instantiate and connect audio components in the Teensy Audio Library. The chapter explains that the Light Synth project demonstrates the combined power of Teensy microcontrollers, the Audio System Design Tool, and the Teensy Audio Library. It then describes how hands-on experimentation is the best way to develop fluency with a program language.
Creating a Synthesizer User Interface
Authors: Edstrom Brent 
Published: October 2024

Abstract
This chapter discusses how to create a synthesizer user interference. It elaborates on the development of a synthesizer interface that can be used to experiment with a variety of synthesis topologies. Essentially, the source code uses less than 200 lines of code to implement the interface. The chapter then provides an overview of pushbuttons, rotary encoders, OLED display, and programming concepts including arrays, references, and object pointers that form the basis of an extensible synthesizer interface. It explains that pin assignments for all switches and encoders are listed at the top of the source file, which will provide a useful vehicle for experimenting with menu systems and parameter manipulation.
Granular Synthesis
Authors: Edstrom Brent 
Published: October 2024

Abstract
This chapter elaborates on the key concepts surrounding granular synthesis. It explains that granular synthesis is a category of synthesis with a theoretical foundation developed by composer Iannis Xenakis in the 1950s. Two simple projects that utilize sample-based granular concepts are a wavetable synthesizer with granular processing and a project that utilizes a USB connection for granular processing of a digital audio signal. The chapter notes that pitch shifting is one of the core attributes of granular synthesis’. It notes that granular processing provides unique opportunities for building custom instruments and sound-processing devices. Thus, granular synthesis provides many opportunities for sound design and composition.
Digital Signal Processing
Authors: Edstrom Brent 
Published: October 2024

Abstract
This chapter cites that audio signals can be processed on the Teensy platform in the form of digital signal processing (DSP). Unlike the expensive analog processors of yore, Teensy microcontrollers can do the job with better fidelity and for a modest cost. The Teensy platform allows the developing of unique processing units that can function as a component of a Eurorack setup, live rig, or guitar effects pedal. The chapter elaborates on the use of two DSPs from the Teensy Audio Library and the creation of two custom DSPs that are not currently available in the library. It also mentions that advanced users can roll their DSPs, opening the door to many possibilities for custom effects.
Building Eurorack Modules
Authors: Edstrom Brent 
Published: October 2024

Abstract
This chapter focuses on the stripboard as part of building Eurorack modules. Due to the wide variety of modules and potential for original creations built around microcontrollers and other technologies, Eurorack provides a modular framework with a vast potential for creative expression, expansion, and adaptation. Although the design concepts are applied to an analog project, core concepts apply to the embedded microcontroller projects. The chapter also provides an overview of the Eurorack format including dimensions, mounting, and other design considerations. It explains that building custom Eurorack modules using thru-hole components and stripboard fits with the DIY ethos of the platform.
Building a Eurorack Effects Unit
Authors: Edstrom Brent 
Published: October 2024

Abstract
This chapter considers how to build a Eurorack Effects Unit. The Eurorack Effects Unit is a relatively simple project that combines the power and audio circuits with concepts from Digital Signal Processing. Essentially, the unit takes a mono audio signal and provides four effects that are selected via a tactile switch. The Eurorack Audio Effects illustrates a capable Eurorack module that is fun to use and relatively inexpensive to build. The chapter explains the unit’s features might include an OLED for program selection, stereo processing, or multiple effects processing. It notes that the project can be constructed on a solderless breadboard, Gerber files, BOM, and other resources found on the OUP website.
Building Eurosynth
Authors: Edstrom Brent 
Published: October 2024

Abstract
This chapter details how to build a Eurosynth. It explains that a Eurosynth is a fun and powerful frequency-modulation synthesizer built on concepts. The interface of Eurosynth would be well-suited to other forms of music synthesis, which also includes enhancements like jacks for MIDI input, menu items for patch storage, or other features. The chapter considers custom Eurorack modules and design strategies that apply to a wide range of DIY projects. It explains that regular practice and experimentation allow the concepts of microcontrollers and Eurosynth to be more comfortable and enable the building of new instruments suited for a particular style of music making.
Clinicopathologic features and prognosis of steatohepatitic hepatocellular carcinoma based on varying cutoffs of tumoral steatohepatitic changes
Authors: Zhang Tao , Niu Na , Taddei Tamar , Jain Dhanpat , Zhang Xuchen 
Published: October 2024

Abstract

Objectives
Steatohepatitic hepatocellular carcinoma (SH-HCC) is currently recognized as a distinct histologic subtype of HCC. The prognosis and specific criteria for determining the amount of steatohepatitis required to define SH-HCC are still unclear.

Methods
After excluding all recognized HCC subtypes from 505 HCC cases (2010-2019), the remaining cases were categorized as conventional HCC (CV-HCC) (n = 223). The cases classified as SH-HCC (n = 171) were further divided into groups based on the percentage of steatohepatitis: 5% or more, 30% or more, and 50% or more.

Results
Hepatitis C virus infection was the predominant underlying liver disease in both the CV-HCC and SH-HCC groups. Metabolic dysfunction-associated steatotic liver disease (formerly nonalcoholic fatty liver disease) was more prevalent in all cases of SH-HCC with different steatohepatitic cutoffs than in cases of CV-HCC. There were no differences in the stage of fibrosis of the background liver between the CV-HCC and SH-HCC groups. SH-HCC with different cutoffs exhibited a notable increase in the presence of glycogenated nuclei, Mallory-Denk bodies, and hyaline globules in tumor cells. Survival analysis did not reveal substantial differences in overall survival between the CV-HCC and SH-HCC groups and among patients with SH-HCC with different steatohepatitis cutoffs.

Conclusions
The degree of intratumoral steatohepatitis in patients with SH-HCC does not appear to be a notable prognostic factor. The presence of steatohepatitis in the tumor is better recognized as 1 of the histopathologic patterns of HCC.
High frequency of ambophily in a Brazilian campos de altitude
Authors: Pacheco Amanda , Bergamo Pedro Joaquim , Freitas Leandro 
Published: October 2024

Abstract

Background and Aims
Ambophily, an intriguing pollination system in which plant species present adaptations to both biotic and abiotic pollination, has been scarcely reported. Most studies have been conducted with a single or few related species from wind-pollinated genera. We here assess for the first time the frequency of ambophily at the community level.

Methods
We evaluated pollen carried by wind in 63 animal-pollinated species from a Brazilian campos de altitude. For those with pollen carried by wind, we evaluated the contribution of wind and animals to seed production with controlled pollination experiments, as well as floral traits and floral visitor assemblages.

Key Results
Pollen of 23 species was carried by wind (~37 %). Animals and wind contributed to the reproduction of seven species (~11 %), including one pollinated by hummingbirds, large bees and wind. These seven ambophilous species presented unrestrictive floral morphologies and generalist pollination.

Conclusions
We found a high frequency of ambophily in a single community (11 %), which represented an increment of ~5 % of species relative to all ambophilous species reported in the literature so far. Investigating pollen transport by wind in zoophilous species combined with controlled experiments helped detect ambophily in species that are usually ignored in wind pollination studies. Our results showed that putative zoophilous species may actually be ambophilous, suggesting that the selective pressures towards ambophily also occur in zoophilous lineages.
DNA methylation analysis to differentiate reference, breed, and parent-of-origin effects in the bovine pangenome era
Authors: MacPhillamy Callum , Chen Tong , Hiendleder Stefan , Williams John L , Alinejad-Rokny Hamid , Low Wai Yee 
Published: October 2024

Abstract

Background
Most DNA methylation studies have used a single reference genome with little attention paid to the bias introduced due to the reference chosen. Reference genome artifacts and genetic variation, including single nucleotide polymorphisms (SNPs) and structural variants (SVs), can lead to differences in methylation sites (CpGs) between individuals of the same species. We analyzed whole-genome bisulfite sequencing data from the fetal liver of Angus (Bos taurus taurus), Brahman (Bos taurus indicus), and reciprocally crossed samples. Using reference genomes for each breed from the Bovine Pangenome Consortium, we investigated the influence of reference genome choice on the breed and parent-of-origin effects in methylome analyses.

Results
Our findings revealed that ∼75% of CpG sites were shared between Angus and Brahman, ∼5% were breed specific, and ∼20% were unresolved. We demonstrated up to ∼2% quantification bias in global methylation when an incorrect reference genome was used. Furthermore, we found that SNPs impacted CpGs 13 times more than other autosomal sites (P &lt; $5 \times {10}^{ - 324}$) and SVs contained 1.18 times (P &lt; $5 \times {10}^{ - 324}$) more CpGs than non-SVs. We found a poor overlap between differentially methylated regions (DMRs) and differentially expressed genes (DEGs) and suggest that DMRs may be impacting enhancers that target these DEGs. DMRs overlapped with imprinted genes, of which 1, DGAT1, which is important for fat metabolism and weight gain, was found in the breed-specific and sire-of-origin comparisons.

Conclusions
This work demonstrates the need to consider reference genome effects to explore genetic and epigenetic differences accurately and identify DMRs involved in controlling certain genes.
Justice “to Come”? Decolonial Deconstruction, from Postmodern Policymaking to the Black Horizon
Authors: Chipato Farai , Chandler David 
Published: October 2024

Abstract
This article explores the importance of what we call “decolonial deconstruction” for contemporary global politics and policy discourses and develops a critique of this approach. “Decolonial deconstruction” seeks to keep open policy processes, deconstructing liberal policy goals of peace, democracy, or justice as always “to come”. It emerged through a nexus of postmodern and decolonial framings, well represented in the critical Black studies tradition, where theorists have focused upon identity construction, rejecting static conceptions. These approaches have increasingly been taken up in international policymaking approaches and International relations theory, particularly in the field of peacebuilding and the broad policy approach of resilience. After highlighting the ways that processual understandings of deconstruction have transformed these policy areas, we suggest an alternative deconstructive approach. In doing so, we draw upon the critical Black studies tradition but emphasize the need to critique underlying ontological assumptions about the world. We heuristically set out this approach as the “Black Horizon.”
Keep Calm and Carry on? Fissure, Perception, and Narrative Contestation Following the Demise of the Crown
Authors: Gellwitzki C Nicolai L , Houde Anne-Marie , Rogers Lauren , Rosher Ben 
Published: October 2024

Abstract
On September 8, 2022, after more than 70 years on the throne, Queen Elizabeth II passed away. The responses among the public, media, and state institutions to the news were varied, with competing views on the role of the monarchy and the legacy of the queen. The questions this article seeks to answer are (1) how the monarch’s death introduced a fissure into the United Kingdom’s autobiographical narrative and (2) how exactly this moment led on the one hand to efforts to reaffirm the dominant UK autobiographical narrative and on the other to efforts to contest this narrative. In framing this analysis using Gestalt psychology, we theorize the role of perception in subjects’ experience of a fissure as well as their subsequent attempts to manage the ensuing anxieties. We show how perception enables and guides avenues for narrative contestation as well as conservative attempts to (re)establish the predominant autobiographical narrative by exploring how the government and the royal family sought to create a sense of continuity and transfer royal authority onto the next generation while activists attempted to subvert this established narrative to problematize the country’s (post)colonial history and societal inequalities.
A World of Many Walks? Zapatista World Ordering between Center and Margins
Authors: Unrau Christine 
Published: October 2024

AbstractAt the current moment of multiple global crises, including of the International Liberal Order, a search for new practices of world ordering seems to coexist with a deep skepticism regarding the possibilities of global solidarity and common struggles between centers and margins. Against this background, this paper focuses on the world ordering practices of the Mexican Ejército Zapatista de Liberación Nacional, a group that occupies a position between center(s) and margin(s). While they clearly self-identify as being on the political and economic margins—geographically remote, economically weak and under constant threat of military repression—their ideas occupied center stage in the search for alternative visions of world order at least for a certain moment. The paper will explore the potential pathologies that a recourse to Zapatism may entail, namely romanticization, hollowing-out and epistemic extractivism/opportunism. It then asks if and how these pathologies can be overcome in a search for common ground for both social movements and International Political Theory when trying to think differently about world ordering from the margins. In this exploration, special emphasis will be given to the pathways toward a desirable order that the Zapatistas conceptualize and practice, namely creating, narrating and walking.