bluuebunny/crossref_metadata_2025_split huggingface dataset:
The effect of severe plastic deformation on the mechanical properties of aluminum composite obtained by additive printing
Authors: Mavlyutov A M , Evstifeev A D , Kasatkin I A , Volosevich D V 
Published: August 2024

Abstract
The composite material for the study was obtained by wire-arc additive manufacturing on the basis of AA1050 (commercially pure aluminum) and AA5056 (commercial alloy of the Al-Mg system) aluminum alloys. The influence of the degree of deformation by high-pressure torsion technique on the mechanical properties and microstructure of the composite material was investigated. The dependences of the static strength and plasticity of the material on the degree of deformation were obtained. The microstructure of the material was investigated by scanning electron microscopy and X-ray diffraction analysis. The optimal deformation route providing the best combination of mechanical properties is revealed, the key microstructure parameters providing optimal properties are determined.
Mechanical properties of polymer composite films with ZnO nanoparticles synthesized in low-temperature plasma under ultrasonic cavitation
Authors: Butusova O A , Filatov S A , Bulychev N A 
Published: August 2024

Abstract
In this study, polymer nanocomposite materials consisting of the copolymer of ethylene and vinyl acetate as a matrix and nanoparticles of zinc oxide as a filler have been obtained and examined by physicochemical and mechanical methods. Zinc oxide nanoparticles used in this study were fabricated using the plasma discharge under the effect of intensive ultrasonic cavitation. To ensure that resulting nanocomposites will acquire homogeneous distribution of filler nanoparticles, solution technology was utilized followed by the melt compounding technique, and also nanoparticles treated and non-treated with ultrasound were applied. The fabricated samples of nanocomposite material films were examined by X-ray phase analysis, then X-ray fluorescence analysis as well as scanning electron microscopy. The differences between the samples were demonstrated: when the nanoparticles without ultrasonic treatment were used, the particles were found to be more strongly aggregated within the bulk of the composite material and the average size of particles was visually larger in comparison to the sample filled with nanoparticles subjected to ultrasonic action. Finally, studies of the tensile strength and relative deformation of the samples were carried out. From the results of mechanical tests, it can be seen that, according to both studied parameters, there is an optimal concentration of ZnO nanoparticles. For tensile strength, the highest result was obtained at a concentration of nanoparticles of 3%, and for the relative elongation to rupture of the sample, the highest value was achieved at a concentration of nanoparticles of 2%.
Mechanical and thermal properties of glass fiber reinforced polymer-clay nanocomposites
Authors: Chinnapandi M , Sharma A P , Ashok Kumar Reddy B , Velmurugan R 
Published: August 2024

Abstract
The effect of Montmorillonite (MMT) nanoclay on static mechanical and thermal characteristcs of glass fiber-reinforced polymer (GFRP) composites is studied. The static tensile properties of epoxy/MMT nanoclay, which are important properties of GFRP composites, are investigated. The predicted stress-strain curves of epoxy with 0 and 1 wt.% of nanoclay follow experiments. The predicted elastic modulus and tensile strength of epoxy with 3 wt.% of nanoclay are 74 and 230% higher than neat epoxy. For GFRP composites with 0, 1, 3, and 5 wt.% of MMT nanoclays, the measured tensile strengths are 587, 600, 628, and 724 MPa, and flexural strengths are 626, 726, 906, and 542 MPa. For composites with former nanoclays, interlaminar shear strengths are 23, 25, 31, and 28 MPa, and Izod impact strengths are 83, 94, 207, and 145 kJ/m2. Thus, mechanical strengths of composites with 0–5 wt.% of nanoclays improve considerably than pristine sample. The predicted static tensile stress-strain curves of GFRP composites with above nanoclays follow experimental behavior. For GFRP composites with 0 and 1 wt.% of MMT nanoclays, glass transition temperatures are 91 and 101°C, and storage moduli at ambient temperature are 35 and 41 GPa. The thermal conductivities of GFRP composites with 0, 1, and 3 wt.% of MMT nanoclays at ambient temperature are 0.32, 0.36, and 0.42 W/(m·K). Thus, thermal properties of composites are affected significantly on addition of nanoclays.
Assessment of Physical, Social, and Economic Vulnerability to Landslides Disaster in the Karangsambung Karangbolong National Geopark, Indonesia.
Authors: Wibowo D A , Raharjo P D , Puswanto E , Handoko U , Afif M A , Setiawan M A 
Published: August 2024

Abstract
The Karangsambung-Karangbolong National Geopark (GNKK) is administratively located in Kebumen Regency, Central Java Province, Indonesia. The GNKK area has an area of 543,599 km2 which includes 12 sub-districts with 117 villages. The morphology of the GNKK area consists of hills, valleys, and plains to the coast. The morphology of hills and mountains is an area that is prone to landslides. Assessment of physical, social, and economic vulnerability needs to be carried out so that disaster risk analysis and mitigation can be carried out in the future. The aims of this study are 1. To determine the spatial distribution of physical, social, and economic vulnerabilities in the Karangsambung Karangbolong National Geopark Area, 2. To analyze the physical, social, and economic vulnerability to landslides in the Karangsambung Karangbolong National Geopark Area. Assessment of physical, social, and economic vulnerability using the Spatial Multi-Criteria Evaluation (SMCE) method. The results of the main study of the GNKK area have high, moderate, and low classes of physical, social, and economic vulnerability to landslides. However, most GNKK areas are classified as moderate. The community’s social conditions in each village significantly affect the areas prone to frequent landslides. The strategy for disaster mitigation by a landslide is increasing human resources for disaster knowledge with disaster mitigation training and using infrastructures such as installing landslide-prone signs and trigger lines.
Integration of Fuzzy Sets, AHP, and TOPSIS Methods for Estimation of Liquefaction Potential Zones in Wates Groundwater Basin, Kulon Progo, Special Region of Yogyakarta
Authors: Ilham Muhamad , Putra D P E 
Published: August 2024

Abstract
In regional development planning, geological, environmental, and socio-economic conditions must be considered. Among the crucial things is the potential for disasters in the region. The Wates Groundwater Basin area has great regional development potential, starting from the establishment of the New Yogyakarta International Airport (NYIA) to the Southern Causeway (JJLS) construction. Various developments are predicted to continue to grow along with the development of areas targeted by the government for this area so the mapping of potential disasters is necessary as a means of achieving Sustainable Development Goals (SDGs). One of the potential disasters in CAT Wates is a liquefaction disaster, which is supported by geological, hydrogeological, and seismic data in this area which is prone to liquefaction. To confirm this potential, this research was conducted using geological and hydrogeological data from previous studies. The result of this research is a more detailed and objective zoning map of the liquefaction potential even though it uses minimal data. This is done by integrating the Fuzzy Sets, AHP, and TOPSIS methods, while simultaneously validating the result using the Cone Penetration Test (CPT) data. The results show that the eastern and southern regions of the basin which are composed of river deposits and coastal deposits, respectively, have a high to very high relative vulnerability to liquefaction, while the central region of the basin has a low to moderate relative vulnerability, and the northern region of the basin tends to have relatively very low vulnerability. That result is aligned with the total thickness of the liquefiable layer from CPT data. It indicates that the combined method is proven to be reliable for liquefaction susceptibility spatial mapping. Thus, the result hopefully can be used as a reference for land use planning in the Wates Groundwater Basin area.
Betung Field Development Based On Petrophysical Integration Analysis And Radius Drainage
Authors: Indah Irmaya Aisyah , Rahmad Basuki , Kristanto Deddy , Buntoro Aris 
Published: August 2024

Abstract
Betung Field which has a productive reservoir of sandstone layers of the Air Benakat Formation. The potential in Layer-5 (L-5) in 2018 is still quite large, with Original Oil In Place (OOIP) of 16,531.05 MSTB. This study uses Petrel Petrophysical and Oil Field Manager software. The output of Petrel Petrophysical is in the form of a petrophysical property model. The output of the Oil Field Manager is a Bubble map model to determine the cumulative production of a well. The petrophysical property model is then integrated with the Bubble map model to find locations for additional potential development wells. Based on the petrophysical distribution map, the Southeast – South area has reference wells with good quality where the porosity value is excelent (30% - 31%), permeability is good (119 mD – 139 mD) and water saturation is small (28% - 38%). Based on the map of the distribution of the drainage radius (Bubble map), the reference wells in the Southeast – South area have large draining radius (45 m/147.64 ft – 70 m/229.67 ft) with large cumulative (3513 STB – 10723 STB). Based on the petrophysical overlay results and drain radius, indicating the Southeast – South area potential for field development with the addition of further wells.
Characterizing dispersion in bovine liver using ARFI-based shear wave rheometry
Authors: Yengul Sanjay S , Barbone Paul E , Madore Bruno 
Published: August 2024

Abstract

Background: Dispersion presents both a challenge and a diagnostic opportunity in shear wave elastography (SWE). Shear Wave Rheometry (SWR) is an inversion technique for processing SWE data acquired using an acoustic radiation force impulse (ARFI) excitation. The main advantage of SWR is that it can characterize the shear properties of homogeneous soft media over a wide frequency range. Assumptions associated with SWR include tissue homogeneity, tissue isotropy, and axisymmetry of the ARFI excitation). Objective: Evaluate the validity of the SWR assumptions in ex vivo bovine liver. Approach: SWR was used to measure the shear properties of bovine liver tissue as function of frequency over a large frequency range. Assumptions associated with SWR (tissue homogeneity, tissue isotropy, and axisymmetry of the ARFI excitation) were evaluated through measurements performed at multiple locations and probe orientations. Measurements focused on quantities that would reveal violations of the assumptions. Main results: Measurements of shear properties were obtained over the 25–250 Hz range, and showed a 4-fold increase in shear storage modulus (from 1 to 4 kPa) and over a 10-fold increase in the loss modulus (from 0.2 to 3 kPa) over that decade-wide frequency range. Measurements under different conditions were highly repeatable, and model error was low in all cases. Significance and Conclusion: SWR depends on modeling the ARFI-induced shear wave as a full vector viscoelastic shear wave resulting from an axisymmetric source; it is agnostic to any specific rheological model. Despite this generality, the model makes three main simplifying assumptions. These results show that the modeling assumptions used in SWR are valid in bovine liver over a wide frequency band.
Redundant series cell voltage measurement circuit design of battery management system for functional safety
Authors: Sun Chein-Chung , Lin Yu-Liang 
Published: August 2024

Abstract
In most battery management system (BMS) circuit designs, the analog front end (AFE) chip is used to get the series cell voltage of the battery pack. However, it can lead to incorrect calculations by the BMS, causing errors in battery information, failures in protection control, and triggering a battery system fire accident if the AFE chip is abnormal. Unfortunately, the BMS will never know the correct of measured results if it is measured by a single AFE chip. This paper proposes a redundant series voltage measurement system (RSVMS) for the series cell voltage of the battery pack. The original AFE is referred to as the main AFE (m-AFE). The RSVMS can be regarded as redundant AFE (r-AFE). In this paper, the r-AFE consists of a series cell selector and an analog-to-digital (ADC) converter with an isolated communication function to transmit measurement results to the microcontroller unit (MCU) of the BMS. Due to the hardware requirements of functional safety, it does not allow using two identically designed hardware as redundant systems. To satisfy the hardware level of functional safety and to minimize the hardware cost and size, the series cell selector of r-AFE shares the same hardware circuit as the Active Hybrid Equalizer Circuit (A-HEC). The cell selector of A-HEC is composed of the back-to-back MOSFET switch array with a simple ON/OFF function. The MCU of BMS will identify the abnormal of voltage measurement results when the difference of m-AFE and r-AFE is over the threshold. In summary, r-AFE can ensure the accuracy of cell voltage measurement for m-AFE to avoid significant errors when estimating battery information and avoid disaster caused by failure or malfunction of protection functions. In addition, the m-AFE and r-AFE are two independent designs to avoid similar errors caused by identical circuit configurations.
Egypt in Your Hand
Authors: Parmenter Christopher Stedman 
Published: August 2024

AbstractBetween circa 650 and 575 BCE, the Aegean world was swept with a craze for Egyptian symbols, devotional practices, and religious beliefs. 6,000 + miniature devotional objects known as aegyptiaca (scarabs, figures, amulets, etc.) have been excavated in seventh-sixth century Greece. Greece’s Egyptianizing phase has long puzzled scholars; despite the abundance of material evidence, it is not documented in literary sources. Over 95 percent of these objects were made from faience, a synthetic vitreous substance whose manufacture required substantial quantities of natron. Most aegyptiaca were produced by specialized workshops in the Aegean.Chapter 2 argues that Egyptianizing religious practices were circulated, propagated, and maintained by the clique of Greek merchants who dominated trade with Egypt in the seventh and sixth centuries BCE. By circulating imagery of an “exotic” Egypt and its culture, merchants advertised their wealth and political ties to the powerful Egyptian pharaoh. Through their commoditization of Egyptian culture, these Archaic merchants encouraged Greeks to see Egypt through the lens of consumption.
Inventing Whiteness
Authors: Parmenter Christopher Stedman 
Published: August 2024

AbstractWhen Classical Athenians visualized the bodies of captive laborers brought from the Black Sea region, they continuously repeated two stereotypes: “paleness” (ἡ λευκότης) and “ruddiness” (τὸ πυρρόν). While falling short of the anatomical precision of nineteenth- or twentieth-century race science, these somatic tropes served to make enslaved bodies visible. Chapter 6 explores the legal, social, and intellectual structures that enabled Classical Athenians to visualize the enslaved people they called “Thracians” and “Scythians” as members of another race. Beginning with a look at legal disabilities faced by enslaved people under Athenian law, the chapter turns to pseudo-scientific writing about enslaved bodies that sought to make the differences between enslaved and free people a matter of biology. Finally, the chapter traces such ideas back to their origins amongst the Greeks that settled the coasts of the Black Sea and thrived on commerce in enslaved bodies.
Postscript
Authors: Parmenter Christopher Stedman 
Published: August 2024

AbstractTo conclude Racialized Commodities, the author argues that race and racism are nearly inescapable aspects of the American experience. How can either be separated from our reading of antiquity? Addressing recent critiques of Premodern Critical Race Studies, the author argues that our ability to use race as a lens for reading antiquity is encapsulated in a single word: recognition. While it is undoubtedly true that the wall of chronology separates antiquity from the present, it is people in the present who interpret the past. If modern critics recognize something familiar in their own experience in an ancient society, who should stop them from exploring it? The discussion ends with a meditation on two scholars who transformed and professionalized the study of Classics in the twentieth century, Moses Finely and Frank M. Snowden Jr.—both of whom suffered under midcentury America’s racial hierarchy and both of whom drew on that experience to argue that race was a concept critical to our understanding of antiquity.
Positioning Women in Conflict Studies
Authors: Karim Sabrina , Hill, Jr. Daniel W 
Published: August 2024

Abstract
This book explores how different types of women’s status, including women’s inclusion (in politics), women’s rights, harm to women, and beliefs about women’s gender roles affect political violence, including interstate war, civil war, repression, and terrorism. However, it argues that before scholars, policymakers, and practitioners can explore these connections, it is important to overcome existing problems in the scholarship—conceptual stretching of gender equality and resulting measurement invalidity. Much of the current scholarship and policymaking conflate gender equality and women’s status. That is, they use gender equality as a catchall term that includes anything related to women. This conflation masks the individual ways in which women’s status affects different forms of political violence. Scholars and policymakers also use a multitude of indicators to measure gender equality when in reality they are measuring other concepts. This book corrects these problems and develops novel concepts and scales to determine how women’s inclusion, women’s rights, harm to women, and beliefs about women’s roles affect interstate war, civil war, repression, and terrorism within a given society. It finds that women’s inclusion is associated with fewer terror attacks; women’s rights in combination with strong women’s advocacy groups are related to less state repression; harm to women is associated with a higher probability of civil and interstate wars; and beliefs about women’s traditional gender roles within a society are correlated with more terrorism. The findings shed light on the various pathways to reduce political violence globally.
Solving the Measurement Invalidity Problem
Authors: Karim Sabrina , Hill, Jr. Daniel W 
Published: August 2024

Abstract
Chapter 2 explores the problem of measurement invalidity in depth. The chapter starts out by discussing the usefulness of using quantitative measures. It then moves on to address common measurement problems. It demonstrates how there are numerous measures of gender equality and how this creates problems for interpreting and comparing results from different studies. It highlights other problems such as a lack of agreement among indicators that are supposed to measure the same concept, and problems with aggregate scales and the way they are commonly created. The chapter ends with an explanation of how measurement models can address these problems, their benefits, and how they are used to create the measures of women’s status presented in subsequent chapters.
SARS-CoV-2 antibody prevalence by industry, workplace characteristics, and workplace infection prevention and control measures, North Carolina, USA, 2021 to 2022
Authors: Gigot Carolyn , Pisanic Nora , Spicer Kristoffer , Davis Meghan F , Kruczynski Kate , Gregory Rivera Magdielis , Koehler Kirsten , Hall D J , Hall Devon J , Heaney Christopher D 
Published: August 2024

Abstract
The COVID-19 pandemic has disproportionately affected workers in certain industries and occupations, and the workplace can be a high-risk setting for SARS-CoV-2 transmission. In this study, we measured SARS-CoV-2 antibody prevalence and identified work-related risk factors in a population primarily working at industrial livestock operations. We used a multiplex salivary SARS-CoV-2 IgG assay to determine infection-induced antibody prevalence among 236 adult (≥18 yr) North Carolina residents between February 2021 and August 2022. We used the National Institute for Occupational Safety and Health Industry and Occupation Computerized Coding System (NIOCCS) to classify employed participants’ industry. Most participants (55%, 95% confidence interval [CI] 49% to 62%) were infection-induced IgG positive, including 71% (95% CI 60% to 83%) of animal slaughtering and processing industry workers, 1.5 to 4.3 times North Carolina general population infection-induced seroprevalence estimates during overlapping time periods. Considering self-reported diagnostic test positivity and vaccination history in addition to antibodies, the proportion of participants with evidence of prior infection increased slightly to 61% (95% CI 55% to 67%), including 75% (95% CI 64% to 87%) of animal slaughtering and processing workers. Participants with more than 1000 compared to 10 or fewer coworkers at their jobsite had higher odds of prior infection (adjusted odds ratio 4.5, 95% CI 1.0 to 21.0). This study contributes evidence of the severe and disproportionate impacts of COVID-19 on animal slaughtering and processing workers and workers in large congregate settings.
Deuterium MR spectroscopy: potential applications in oncology research
Authors: Bitencourt Almir Galvão Vieira , Bhowmik Arka , Marcal Filho Eduardo Flavio De Lacerda , Lo Gullo Roberto , Mazaheri Yousef , Kapetas Panagiotis , Eskreis-Winkler Sarah , Young Robert , Pinker Katja , Thakur Sunitha B 
Published: August 2024

Abstract
Metabolic imaging in clinical practice has long relied on PET with fluorodeoxyglucose (FDG), a radioactive tracer. However, this conventional method presents inherent limitations such as exposure to ionizing radiation and potential diagnostic uncertainties, particularly in organs with heightened glucose uptake like the brain. This review underscores the transformative potential of traditional deuterium MR spectroscopy (MRS) when integrated with gradient techniques, culminating in an advanced metabolic imaging modality known as deuterium MRI (DMRI). While recent advancements in hyperpolarized MRS hold promise for metabolic analysis, their widespread clinical usage is hindered by cost constraints and the availability of hyperpolarizer devices or facilities. DMRI, also denoted as deuterium metabolic imaging (DMI), represents a pioneering, single-shot, and noninvasive paradigm that fuses conventional MRS with nonradioactive deuterium-labelled substrates. Extensively tested in animal models and patient cohorts, particularly in cases of brain tumours, DMI's standout feature lies in its seamless integration into standard clinical MRI scanners, necessitating only minor adjustments such as radiofrequency coil tuning to the deuterium frequency. DMRI emerges as a versatile tool for quantifying crucial metabolites in clinical oncology, including glucose, lactate, glutamate, glutamine, and characterizing IDH mutations. Its potential applications in this domain are broad, spanning diagnostic profiling, treatment response monitoring, and the identification of novel therapeutic targets across diverse cancer subtypes.