bluuebunny/crossref_metadata_2025_split huggingface dataset:
Performance optimization of high-K GAA-PZT negative capacitance FET MFIS silicon nanowire for low power RFIC and analog applications
Authors: Kumar Vivek , Maurya Ravindra Kumar , Malvika  , Rawat Gopal , Mummaneni Kavicharan 
Published: October 2023

Abstract
In this article, Gate-All-Around Lead Zirconate Titanate Negative Capacitance (GAA PZT- NCFET) based Silicon Nanowire (SiNW) device architecture is investigated for the RF/Analog applications using Sentauras TCAD simulations. In this study the variation of ferroelectric layer thicknesses (tfe) has been systematically investigated. The proposed device yields higher values of on current, transconductance, cut off frequency, TFP, and Ion/Ioff ratio and lower values of off current, SS and threshold voltage, compared to baseline device. The proposed device delivers Ion, gm, fT, and TFP as 3.38 mA, 9.6 mS, 7.625 THz, and 74.85 THz V−1, respectively which are 220%, 219%, 95% and 259% respectively, higher than the baseline device. Moreover, the Ion/Ioff ratio for the proposed work is 8 × 1013 which is 7.1 × 103 times that of baseline device showing a monumental increment in this ratio. Furthermore, the effect of FE thicknesses on various linearity parameters, higher order harmonics, voltage intercept points (VIP2, VIP3), third order power intercept (IIP3) and third order intermodulation distortion (IMD3) have been investigated thoroughly. The proposed device structure offers lower values of higher order harmonics and higher values of voltage intercept points. Also, the IIP3 and IMD3 have been improved. Therefore, the linearity parameters of the device have been significantly improved when compared to the baseline device. The alluring results have been utilized to optimize the bias point of the presented device. Owing to the improved RF/Analog and linearity performance, the presented device could be utilized for imminent next generation low power RFIC applications.
The scattering problem of obliquely incident electromagnetic waves by an inhomogeneous infinitely long cylinder
Authors: Gintides D , Giogiakas S , Mindrinos L 
Published: October 2023

Abstract
We study the scattering of a time-harmonic electromagnetic wave incident at an oblique angle on a dielectric, isotropic, and fully inhomogeneous cylinder. This infinitely long cylinder is oriented parallel to the z − axis in three dimensions. Our main focus is on the inverse problem, aiming to reconstruct the refractive index of the cylinder. The material parameters’ z − independence allows us to consider the scattering problem only on its horizontal cross-sections. We examine the well-posedness of the direct problem and proceed to numerically solve the corresponding inverse problem for one incident field. To achieve accurate reconstructions of the refractive index, we introduce a novel numerical scheme that yields satisfactory results.
Optical and temperature-dependent electrical and dielectric properties of ultrasound-synthesized CdS quantum dots
Authors: Ali Manar A , Chun Doo-Man , Ibrahim E M M , Abd-Elrahim A G 
Published: October 2023

Abstract
CdS quantum dots (QDs) were synthesized by the ultrasound-assisted chemical precipitation technique. The structure analysis revealed the presence of bi-structural cubic and hexagonal phases with an average crystallite size of 3 nm. The N2-adsorption isotherm exhibited the evolution of meso-/macro-porous interfaces with a pore size of 7.56 nm and a surface area of 44.41 m2·g−1. The improvement of the quantum size effect in CdS QDs resulted in the increase of optical bandgap to 2.52 eV compared with the corresponding bulk phase. However, the analysis of long-tail states absorption revealed a very small Urbach energy of about 76 meV compared with CdS QDs prepared by other techniques. The as-synthesized CdS QDs revealed high room-temperature DC conductivity of 2.56 × 10–6 Ω−1 · m−1 and very small activation energy of 268 meV facilitating tunnelling of the thermionically excited carrier through the high bandgap of CdS QDs. The frequency-dependent behavior of AC conductivity (σ
AC) and dielectric constant (ε
r) of CdS QDs were investigated at different temperatures in the range from 303 K to 453 K. It was observed that both σ
AC and ε
r were improved with increasing temperature up to 363 K followed by a sudden decrease at higher temperatures.
Measurement of gas holdup characteristics in two-phase column flotation by electrical capacitance volume tomography
Authors: Nugraha Harisma , Haryono Didied , Harjanto Sri , Huda Mahfudz Al , Taruno Warsito P 
Published: October 2023

Abstract
Electrical capacitance volume tomography measured the gas holdup in two-phase column flotation. The purpose was to characterize gas holdup and understand its relation to flow patterns as a function of the types and doses of frothers. Experiments were conducted using laboratory-scale column flotation cells with dimensions of 5 ×125 cm. The superficial gas velocities in the experiment were 0.5–4 cm s−1 with an interval of 0.5 cm/s. Methyl isobutyl carbinol (MIBC) and Oreprep F-583-OZ (Oreprep) were used as frothers at 5–40 ppm doses. The results showed that the difference between the lowest and highest gas holdup in the bubbly flow regime was ∼0.07, and the transition from the bubbly to churn-turbulent flow occurred at a superficial gas velocity of 2 c m /s .
Diverse optical soliton solutions of two space-time fractional nonlinear evolution equations by the extended kudryashov method
Authors: Devnath Sujoy , Akbar M Ali , Gómez-Aguilar J F 
Published: October 2023

Abstract
This study investigates the inclusive optical soliton solutions to the (2+1)-dimensional nonlinear time-fractional Zoomeron equation and the space-time fractional nonlinear Chen-Lee-Liu equation using the extended Kudryashov technique. The beta derivative is used to conduct the fractional terms and investigate wide-spectral soliton solutions to the considered models. The obtained solutions yield a variety of typical soliton shapes, including ant-peakon soliton, V-shaped soliton, anti-bell-shaped soliton, kink soliton, periodic soliton, singular periodic soliton for the specific value of the parameters. The three-dimensional, contour, and two-dimensional graphs of the derived solitons have been plotted to illustrate the structure, propagation, and influence of the fractional parameter. It is observed that the fractional parameter affects the amplitudes and periods of certain solitons. The precision of the acquired solutions is confirmed by reintroducing them into the original equation using Mathematica. The findings of this study indicate that the employed method has the capability of yielding compatible, creative, and useful solutions for diverse nonlinear evolution equations with fractional derivatives. This approach could introduce novel ways for unraveling other nonlinear equations and have implications in diverse sectors of nonlinear science and engineering.
Prompt cusps and the dark matter annihilation signal
Authors: Delos M. Sten , White Simon D.M. 
Published: October 2023

Abstract
As the first dark matter objects gravitationally condense, a density cusp forms immediately at every initial density maximum. Numerical simulations and theoretical arguments suggest that these prompt cusps can survive until the present day. We show that if dark matter is a thermally produced weakly interacting massive particle, many thousands of prompt cusps with individual masses similar to that of the Earth may be present in every solar mass of dark matter. This radically alters predictions for the amount and spatial distribution of dark matter annihilation radiation. The annihilation rate is boosted by at least an order of magnitude compared to previous predictions, both in the cosmological average and within galaxy-scale halos. Moreover, the signal is predominantly boosted outside of the centers of galactic halos, so alternative targets become significantly more attractive for indirect-detection searches. For example, prompt cusps present new opportunities to test the dark matter interpretation of the Galactic Center γ-ray excess by searching for similar spectral signatures in the isotropic γ-ray background and large-scale cosmic structure.
Constraining axion-like particles with HAWC observations of TeV blazars
Authors: Jacobsen Sunniva , Linden Tim , Freese Katherine 
Published: October 2023

Abstract
Axion-like particles (ALPs) are a broad class of pseudo-scalar bosons that generically arise from broken symmetries in extensions of the standard model. In many scenarios, ALPs can mix with photons in regions with high magnetic fields. Photons from distant sources can mix with ALPs, which then travel unattenuated through the Universe, before they mix back to photons in the Milky Way galactic magnetic field. Thus, photons can traverse regions where their signals would normally be blocked or attenuated. In this paper, we study TeV γ-ray observations from distant blazars, utilizing the significant γ-ray attenuation expected from such signals to look for excess photon fluxes that may be due to ALP-photon mixing. We find no such excesses among a stacked population of seven blazars and
constrain the ALP-photon coupling constant to fall below ∼4.5×10-11 GeV-1 for ALP masses below 300 neV. These results are competitive with, or better than, leading terrestrial and astrophysical constraints in this mass range.
The FLUKA cross sections for cosmic-ray leptons and uncertainties on current positron predictions
Authors: De La Torre Luque P. , Loparco F. , Mazziotta M.N. 
Published: October 2023

Abstract
Cosmic-ray (CR) antiparticles have the potential to reveal signatures of unexpected
astrophysical processes and even new physics beyond the Standard Model. Recent CR detectors have
provided accurate measurements of the positron flux, revealing the so-called positron excess at
high energies. However, the uncertainties related to the modelling of the local positron flux are
still very high, significantly affecting our models of positron emission from pulsars and current
dark matter searches.

In this work, we report a new set of cross sections for positron and electron production derived
from the FLUKA code. We compare them with the most extended cross-section data-sets and show
the impact of neglecting the positron production from heavy CRs. Then, we review the most
significant sources of uncertainties in our current estimations of the secondary positron flux at
Earth and examine for the first time the impact of considering the spiral arm structure of the
Galaxy in these estimations. Finally, we provide state-of-the-art predictions of the local positron
flux and discuss the limitations of our dark matter searches with positrons and difficulties to
determine the contribution from pulsars to the positron flux at low energies.
Non-Gaussianity from the cross-correlation of the astrophysical Gravitational Wave Background and the Cosmic Microwave Background
Authors: Perna Gabriele , Ricciardone Angelo , Bertacca Daniele , Matarrese Sabino 
Published: October 2023

Abstract
Since the first LIGO/Virgo detection, Gravitational Waves (GWs) have been very promising
as a new complementary probe to understand our Universe. One of the next challenges of GW search
is the detection and characterization of the Stochastic Gravitational Wave Background (SGWB), that
is expected to open a window on the very early Universe (cosmological background) and to provide
us new information on astrophysical source populations (astrophysical background). One way to
characterize the SGWB and to extract information about its origin is through the cross-correlation
with other cosmological probes. To this aim, in this paper, we explore the cross-correlation
between the astrophysical background anisotropies and the Cosmic Microwave Background (CMB)
ones. Such a signal is sensitive to primordial non-Gaussianity (nG) through the GW bias. Thus, we
study the capability of next generation space-based interferometers to detect such a
cross-correlation signal and to constrain primordial nG.
Assessing suitability of major meteorological factors for facility agriculture in mainland China
Authors: Zhang Qi , Zhu Jun , Yu Xin , Huang Shaofeng , Zhang Xinyu , Zhang Shenbao , Qiu Rangjian , Agathokleous Evgenios 
Published: October 2023

Abstract
In China, more than two-thirds of protected cultivation occurs in low-tech facilities with limited ability to withstand adverse weather conditions. However, the specific meteorological factors that hinder facility agriculture production in various locations remain unclear. Here, we evaluated temperature and sunlight for assessing facility agriculture suitability in mainland China across different transplanting dates and ENSO phases (El Niño, La Niña, and Neutral) and to determine the optimal transplanting window. This aids in reducing climatic risks, and enhancing adaptation to changing climates. The results showed that growth cycles starting from March to June provide suitable temperature and sunlight, making them ideal transplanting window for many parts of northern China. However, both El Niño and La Niña significantly increased the high-temperature days and shortened the optimal transplanting window. For growth cycles starting from July to the following January, low temperatures are the primary factor limiting facility agriculture production in northern and western China. In southern China, sparse sunlight is the primary limiting factor year-round, and El Niño exacerbates this, particularly for growth cycles starting from September to November. This combined assessment of major meteorological factors, transplanting dates, ENSO phases, and regions, can assist decision-makers and growers in adapting to the changing climate and minimizing production risks.
Preliminary result of dominant frequency and seismic amplification in Penajam Paser Utara and its surrounding regions using the HVSR method
Authors: Mawadah A , Zulfakriza Z , Widiyantoro S , Supendi P , Husni Y M , Lesmana A , Azhari M F 
Published: October 2023

Abstract
East Kalimantan has been designated as the new capital city of Indonesia, precisely in Penajam Paser Utara and Kutai Kartanegara Regency. According to the historical records of seismic activity, there were several destructive earthquakes in East Kalimantan. Therefore, it is necessary to study the characteristics of the local site to assess the seismic hazard potential in the new capital city area and its surroundings. In this research, the Horizontal to Vertical Spectral Ratio (HVSR) method was applied by utilizing microtremor data from 21 seismometers installed in the research area. The results of the HVSR analysis obtained the dominant frequency (f0) and amplification factor (A0) from the H/V curve. Based on the H/V calculation, the highest f0 is 13.04 Hz and the lowest value is 0.58 Hz. Meanwhile, the highest value for A0 is 6.41, and the lowest value is 1.41. The results of the study show that the research area has a low to medium level of seismic hazard.
Petrogenesis of Adang and Talaya volcanic rocks, in the Mamuju area and its surrounding, West Sulawesi
Authors: Zaidani M A , Priadi B , Sucipta I G B E , Susanto V , Saepuloh A 
Published: October 2023

Abstract
The Adang Volcanic and Talaya Volcanic complex located in the Mamuju area are ancient volcanic complexes of the Neogene period. These two complexes consist of pyroclastic, volcaniclastic, and basic-intermediate lava containing the main modal minerals of leucite and clinopyroxene, making these rocks unique and rarely found in Indonesia. This study aims to determine the petrological and geochemical characteristics as well as the tectonic setting of rock formation. The rocks are generally porphyritic and vitrophyric in texture with various rock types as a result of magma differentiation. The Adang Volcanic Lava is composed of trachyandesite, tephriphonolite, trachyte, phonolite, and leucitite. Talaya Volcanic Lava is composed of basalt and trachybasalt rocks. Based on geochemical content, rocks have high alkalinity with wide range concentrations of K2O (0.27 – 10.12%), Na2O (0.54 – 11.06%), and total alkali (4.6 – 12.6%), as well as evidenced by the presence of feldspathoids. Rocks are divided into three groups, sodic, potassic, and ultrapotassic. The ultrapotassic rocks have similarities with Group III (Active Orogenic Zone) and Group I (Lamproite). The intensive enrichment of incompatible elements such as Rb and Th as well as the negative Nb and Ti anomalies reflect that magma derived from mantle metasomatism and is associated with subduction events. The genesis of the rock occurred in the tectonic setting of alkaline arc magmatism or continental extensional zone which was formed after the collision of the Banggai-Sula microcontinent with West Sulawesi. This process is also indirectly influenced by pre-collision subduction of the oceanic lithosphere.
Peak Ground Velocity (PGV) estimation of Mw 5.6 Cianjur earthquake November 11, 2022 using Global Positioning System (GPS)
Authors: Meilano Irwan , Susilo Susilo , Wibowo Sidik Tri 
Published: October 2023

Abstract
The primary purpose of GPS is to be used for positioning, navigation, and timing (PNT). In the last decade, research on GPS for earthquake hazards has increased rapidly, such as for tectonic deformation, GPS seismology, modeling earthquake source parameters, estimation of magnitude, etc. In this study, following the Mw 5.6 Cianjur earthquake on November 11, 2022, we estimate the peak ground velocity from the CJUR GPS station, which is located about 15 km from the epicenter. We compute GPS velocity from the high-rate GPS receiver independent exchange (RINEX) data and broadcast ephemeris. Using a narrow line combination of L1 and L2 observations, we invert velocity epoch by epoch. The result shows the CJUR GPS station has a peak ground velocity of about 11.5 cm/s and equal to VI MMI scale. The peak ground velocity from the GPS station could be important for deriving the earthquake shakemap. By increasing the number of GPS stations in Indonesia, it is very important to support earthquake hazard monitoring.
The Effect of Rainfall Anomalies Due to Enso on tea Productivity in West Java Indonesia (Case Study: Bandung Regency)
Authors: Rahmatika  , Wiratmo Joko 
Published: October 2023

Abstract
This study aims to determine the effect of rainfall anomalies due to ENSO on tea productivity in Bandung Regency West Java Indonesia. This study used data on monthly rainfall, tea productivity, and the Nino 3.4 index from 2003-2020. The methods used are Fast Fourier Transform (FFT), Butterworth Bandpass Filter, and Inverse Fast Fourier Transform (IFFT) for the processing of these three data. The results of this study indicate that the rainfall pattern in the Bandung Regency area in 4 districts (Rancabali, Pasirjambu, Pangalengan, and Kertasari) is monsoon. ENSO correlation to rainfall anomalies and rainfall anomalies correlation to tea productivity in each district is low. The highest correlation between ENSO to rainfall anomalies is found in Pangalengan District (-0.309) and the highest correlation between rainfall anomalies to tea productivity is found in Kert asari District for lag 0 and 1 which are -0.304 and -0.285 respectively. The low correlation (-0.148 to - 0.309) showed that the effect of rainfall anomalies due to ENSO on tea productivity of each district in Bandung Regency has a small effect but with a significance value of less than 5% (0.000 to 0.030) which means it has a significant relationship.
Marine-related livelihood activities of Can Gio District Residents: Situation and Solutions for Sustainable Development
Authors: Thu H N , Ha L T M 
Published: October 2023

Abstract
Marine economic exploitation has been interesting for many decades for the Party and Government in Vietnam, especially in exploiting and developing the maritime economy sustainably. Therefore, the Party and the Government in Vietnam have issued resolutions related to marine strategies, such as Resolution No. 09-NQ/TW (February 9, 2007) of the 10th Party Central Committee on Vietnam’s maritime strategy to 2020, which set the goal of turning Vietnam into a country that is strong in the sea, enriching from the sea, etc., or Resolution No. 27/2007/NQ-CP (May 30, 2007) and Resolution No. 84/NQ-CP (December 10, 2015) of the Government on action programs to implement Vietnam’s maritime strategy up to 2020, mentioning many programs of socio-economic development, defense, and security of the sea and islands. In coastal provinces and cities, all programs are developed, and action programs are organized and implemented related to marine exploitation. Cần Giờ is a district of Ho Chi Minh City. The leaders of the district have implemented a number of programs related to marine exploitation and have encouraged people to continue with a variety of sea-related livelihood activities, such as fishing, farming, salting, and tourism associated with maritime ecological culture. These factors have contributed to the socio-economic development of Cần Giờ district and the successful implementation of Party and State guidelines and policies. However, to ensure the long-term viability of Can Gio residents’ marine-based livelihood activities, it is necessary to assess the current situation and propose viable solutions for the future. This is also the main goal of this article.
Early onset adolescent binge drinking is associated with reduced white matter integrity in post-9/11 adult veterans
Authors: Knoff Aubrey A , Knight Arielle R , Salat David H , Bedi Amrita , Currao Alyssa , Fonda Jennifer R , McGlinchey Regina E , Fortier Catherine B 
Published: October 2023

Abstract
Adolescence represents a critical period of neural development during which binge drinking (BD) is prevalent. Though prior work has shown that white matter (WM) integrity is susceptible to damage from excessive alcohol intake in adults, the effect of early adolescent BD on WM health in adulthood remains unknown. Veterans with a history of BD onset before age 15 [n = 49; mean age = 31.8 years; early-onset adolescent binge drinkers (EBD)] and after age 15 [n = 290; mean age = 32.2 years; late-onset adolescent binge drinkers (LBD)] were studied with diffusion tensor imaging. Group differences in fractional anisotropy (FA; movement of water molecules along the WM) and mean diffusivity (MD; average movement of water molecules) were examined as indices of WM integrity using FreeSurfer and FMRIB Software Library (FSL) processing streams. Lower FA and higher MD are thought to represent degradations in WM integrity. A reference group (RG) of social drinkers with no history of BD (n = 31) was used to provide comparative normative data. We observed widespread decreased FA and increased MD in EBDs, compared to LBDs, as well as decreased FA in the pars triangularis, lateral orbitofrontal cortex, superior frontal cortex, isthmus cingulate, and genu and splenium of the corpus callosum EBDs also had lower WM integrity compared to the RG. Adults who initiated BD during early adolescence demonstrated decreased FA and increased MD throughout the frontostriatal circuits that mediate inhibitory control and thus may result in impulsive behavior and a predisposition for developing alcohol use disorder during adulthood.
Letter to the Editors regarding ‘A Meta-Regression of Trial Features Predicting the Effects of Alcohol Use Disorder Pharmacotherapies on Drinking Outcomes in Randomized Clinical Trials: A Secondary Data Analysis’
Authors: Guiraud Julien , van den Brink Wim 
Published: October 2023

Short Summary: Grodin et al. conducted a meta-regression analysis of studies testing the effect of pretrial abstinence and diagnosis of alcohol use disorder as treatment effect predictors of pharmacotherapies for alcohol use disorder. The lack of contrast in these predictors and the suboptimal statistical method that was used may explain the negative findings.