bluuebunny/crossref_metadata_2025 huggingface dataset:
Robotic Multivisceral Resection (RMVR) of the Pelvis for Locally Advanced Colorectal Carcinoma: Single Oncosurgical Center Experience
Authors: Lakmal M. A. Chamila , Selvasekar Chelliah R. , Aggarwal Shyam , Rawat Soumitra
Published: December 2024

Introduction Locally advanced colorectal cancer management remains a challenge due to multiple reasons. Some of the major ones include the changes following the use of neoadjuvant radiotherapy and systemic anticancer treatment and previous abdominal surgery (including defunctioning stoma and related changes) and the proximity of structures close to the cancer. Robotic colorectal surgery for malignancy is rapidly evolving as a surgical technique in the management of colorectal cancers but its role in the management of locally advanced disease is not defined.

Methods This is a retrospective analysis of robotic colorectal surgery performed and captured in a prospective database. Patients who underwent multivisceral robotic colorectal surgery from 2012 to 2022 were included in this study. Robotic colorectal surgeries without multivisceral resections were excluded.

Results A total of 24 patients underwent robotic multivisceral resection (RMVR). This included 6 males and 17 females. The 17 females underwent posterior clearance, 5 males underwent abdominoperineal resection with seminal vesicle excision, and 1 male underwent total pelvic exenteration. Of the patients, 22 had neoadjuvant pelvic radiotherapy. Sixteen (66.7%) had past lower abdominal surgery (stoma). Preoperative tumor staging was T3 or T4 in 90%, and 80% had R0 resection. The median lymph node harvest was 15 (range 4–31). There was zero need for conversion to open surgery and zero 90-day mortality.

Conclusion RMVR is a safe approach for locally advanced colorectal cancer, with acceptable surgical clearance.
A Review of Autoimmune Thyroid Diseases and Their Complex Interplay with Female Fertility
Authors: Carafone Lindsay , Knutson Alex J. , Gigliotti Benjamin J.
Published: December 2024

Hashimoto thyroiditis and Graves' disease are autoimmune thyroid disorders that are common in women of reproductive age and have a complex relationship with female fertility and health of the maternal–fetal dyad. Both hyperthyroidism and hypothyroidism, whether subclinical or overt in severity, directly or indirectly affect nearly every level of the hypothalamic–pituitary–ovary axis, uterine and ovarian function, as well as fetal development from implantation through delivery. Autoimmunity itself also appears to negatively impact both spontaneous and assisted fertility, as well as miscarriage risk, although the mechanism remains unclear, and the presence and magnitude of risk is variable in published literature. While treatment of overt hyperthyroidism and hypothyroidism is unequivocally recommended by professional societies, the impact of treatment on fertility outcomes, and the role of treatment in subclinical thyroid disease is more controversial. Unfortunately, levothyroxine has not been shown to abrogate the risk of subfertility and miscarriage observed in euthyroid thyroid autoantibody positive women.
Bose condensation of atomic hydrogen in an inhomogeneous magnetic field
Authors: Shevchenko S. I.
Published: December 2024

The critical temperature for the Bose condensation of atomic hydrogen under Silvera and Valraven's experimental conditions [Phys. Rev. Lett. 44, 164, 168 (1980)] is determined. It is established that it should depend essentially on the magnetic field.
Coherent effects in granular superconducting films
Authors: Dmitriev V. M. , Solov’ev A. L.
Published: December 2024

Films composed of a large number of Nb or V granules combined with normal metals (Cr or Ag) and deposited on a fluorophlogopite substrate in such a way that a series of bridges (contacts) with variable thickness formed, were studied experimentally. Investigations with constant current in UHF fields showed that a coherent state is established in the system of contacts as a result of electromagnetic interaction via the intrinsic or external radiation. The nature of the interaction is studied as a function of the power and frequency of the radiation, temperature, and geometry of the specimens. An excess current was discovered on the return path of the I-V curve, whose presence is related to the intrinsic coherent radiation of the system of contacts, observable by the characteristic current steps in the I–V curve. The frequency and power of the radiation are estimated and the detecting properties of the system of contacts are determined.
Theory of the α–β transition in solid oxygen
Authors: Gaididei Yu. B. , Loktev V. M.
Published: December 2024

The structural transition in an antiferromagnet caused by the interaction of the magnetic and elastic subsystems is studied. The α–β transition in solid oxygen is considered as an example, and it is shown that the main features in the behavior of the thermal properties of the α-phase can be explained if a magnetoelastic origin for the α–β transition is postulated.
Resonance properties of [NH3–(CH2)2–NH3]MnCl4–a two-dimensional antiferromagnet with Dzyaloshinskii interaction
Authors: Kobets M. I. , Stepanov A. A. , Zvyagin A. I.
Published: December 2024

The resonance absorption spectra in the quasi-two-dimensional antiferromagnetic [NH3–(CH2)2–NH3]MnCl4 are studied at the frequencies 9.6–75 GHz in the 4.2–300 °K temperature range.
Criterion for the appearance of discontinuous low-temperature plastic deformations in the presence of oscillations
Authors: Zhitomirskii I. S. , Nechiporenko I. N.
Published: December 2024

A criterion has been obtained for the appearance of a discontinuous nature in the process of plastic deformation in the presence of oscillations of the general deformation of the specimen. It it shown that the presence of oscillations can stimulate the discontinuity of the plastic deformations and substantially raise the temperature of the appearance of the discontinuous deformation.
Determination of the core radius in a cylindrical tin single crystal in the intermediate state upon the destruction of the superconductivity by a current
Authors: Frolov V. A. , Kan Ya. S.
Published: December 2024

The core radius in single crystal tin samples (R3.7/R300 ≈ 10−5) in the intermediate state has been determined by measuring the magnetic flux produced in the samples by a longitudinal magnetic field that did not give rise to the paramagnetic effect. The results do not contradict the assumption made in the London model that the s-domain boundaries are rounded off as a result of the positive surface energy of the n-s boundaries.
Nonstationary and nonequilibrium phenomena in a statistical array of superconducting bridge contacts
Authors: Dmitriev V. M. , Solov’ev A. L
Published: December 2024

We experimentally studied the I – V curves of granular films, forming static arrays of weak links. The behavior of intrinsic current steps and the excess current of I – V curves at T < T* indicate the existence of conditions at which the sample properties are similar to those of single contacts. We studied the sample current transition into the normal state.
Density drop at the divertor target in the prototype material plasma exposure eXperiment (Proto-MPEX)
Authors: Kumar A. , Caneses-Marin J. F. , Rapp J. , Lau C. , Goulding R.
Published: December 2024

The steady-state linear device “Material Plasma Exposure eXperiment” (MPEX) is currently under construction at Oak Ridge National Laboratory with the goal of enabling Plasma-Material Interaction studies at future fusion reactor relevant plasma conditions. In this work, a newly in-house developed hybrid Particle-In-Cell code-PICOS++ is applied to understand the experimental results obtained from the prototype of MPEX referred to as the “Proto-MPEX” during its helicon-only and helicon with ion cyclotron resonance heating (ICRH) experiments. This study explains the physics of the experimentally observed plasma density-drop at the divertor target in Proto-MPEX device during ICRH. In contrast to previous work on ICRH in MPEX [Kumar et al. Nucl. Fusion, 63, 036004 (2023)], this study demonstrates that the mirror force plays a central role in the Proto-MPEX plasma transport during ICRH, which has new features not previously explored. Force balance analyses reveal that the temperature anisotropy produced by ICRH leads to a significant increase in the mirror force downstream of the resonance where the magnetic field is diverging. This force accelerates ions toward the target and leads to a drop in plasma density to ensure conservation of particle flux. Simulations with ICRH where the magnetic field divergence downstream of the resonance has been removed, do not produce plasma acceleration nor density drop at the target despite efficient ion heating at the resonance. Moreover, simulation results demonstrate that for a given ICRH power, lowering the source rate produces ions with increased perpendicular energy which interact with the mirror force to produce higher plasma acceleration which increases the strength of the density-drop at the target. The strength of the density drop appears to reach an asymptotic limit at a certain threshold ICRH power. Simulations show that this threshold power increases with increasing particle source rate.
Axisymmetric study of convection in rotating annulus in the presence of localized heating
Authors: Banerjee Ayan Kumar
Published: December 2024

We present two dimensional (2D) axisymmetric simulations to model a rotating convective system driven by localized heating. The system consists of a cylindrical annulus with peripheral spot heating along the outer edge of the bottom surface and uniform cooling on the inner edge. This setup naturally introduces an additional vertical thermal gradient near the outer edge of the annulus, along with a radial thermal gradient, thereby simulating the thermal gradient patterns observed in a real atmosphere. While the 2D axisymmetric simulation does not fully capture the three dimensional (3D) behavior of flow dynamics, however, it aids in understanding the flow dynamics in the absence of baroclinic instability, as well as the local flow structures near the heating zone, cold wall, and Ekman layers. We investigate the variability in convective dynamics in response to varying Taylor number (Ta) and Rayleigh number (Ra) within the parameter range of Ra=2.4×107 to 1.2×109 and Ta=1.6×107 to 1.2×109 along with Ta = 0. The convection is confined within narrow boundary layers, and diffusion dominates the fluid interior. At zero rotation rate, isotherms are horizontal. Rotation causes the spreading of the isotherms due to a combination of quasi-hydrostatic and geostrophic balance in the interior of the flow domain. Theoretical scalings for local Nusselt numbers are derived and validated with results from the simulations. The overall Nusselt number, Nu, appears to strongly depend on Ra. The impact of Ta on Nu is rather limited unless Ekman boundary layer is less than the rotating thermal boundary layer.
An enrichment wall modeling framework for spectral element methods
Authors: Brill Steven R. , Pal Pinaki , Ameen Muhsin , Xu Chao , Ihme Matthias
Published: December 2024

In the present work, a first-of-its-kind enrichment wall-model is developed within the spectral element method (SEM) framework for large-eddy simulations (LES) of wall-bounded turbulent flows. The method augments the polynomial solution in the wall-adjacent elements with an analytical law-of-the-wall enrichment function representing the mean velocity near the wall. In the solution representation, this enrichment function captures the large gradients in the boundary layer, which allows the polynomial modes to represent the turbulent fluctuations. The enriched solution is able to resolve the shear stress at the wall without any modification to the no-slip wall boundary conditions, which allows for greater accuracy in the near-wall region compared to traditional methods. The enrichment wall modeling approach is implemented in a high-order SEM computational fluid dynamics solver, Nek5000, and its performance is assessed in turbulent channel flow wall-modeled LES for a range of Reynolds numbers. It is demonstrated that the enrichment wall-model improves solution accuracy on under-resolved near-wall grids as compared to traditional shear stress wall-models.
The shielding effect and interaction mechanism of the air bubble on the cavitation bubble in aeration methods: A numerical study
Authors: Ma Mingkai , Yin Jianyong , Zhang Yongxue , Tian Lei , Tian Daojun , Huang Ruyuan , Chen Yu
Published: December 2024

Revealing the interaction between an air bubble and a cavitation bubble is important to better understand the mechanism of air entrainment to mitigate cavitation on spillway surfaces. The mechanism of interaction between the air bubble and the cavitation bubble during their multi-periodic evolution is investigated based on a compressible three-phase model, considering phase transition and thermodynamic effects. The results indicate that the air bubble has an evident shielding effect on the cavitation bubble, weakening its collapse and prolonging the oscillation period. Two patterns are identified according to whether the merging of the two bubbles occurs or not. The air bubble inhibition impact on the cavitation bubble is stronger in pattern 1 and relatively moderate in pattern 2. To quantify the influence of the air bubble on the cavitation bubble dynamics, the collapse radius, pressure load, and bubble temperature under different dimensionless distances (γ) and sizes (ε) between two bubbles are investigated and analyzed. As γ increases, the cavitation bubble collapse temperature and pressure increase, while the minimum radius decreases. The pressure value for γ = 0.24 reduces by 50.3% compared to the case where only the cavitation bubble collapses. In addition, the collapse temperature decreases with increasing ε. The collapse temperature decreases by 21.6% when ε increases from 0.2 to 0.45. These findings may provide some new references for understanding the macroscopic interactions between the air bubble cluster and the cavitation bubble cluster.
Mechanism of liquid jetting by driving jet tube for reciprocating motion
Authors: Xue Boce , Zhang Yanzhen , Hu Guofang , Wu Yuyao , Li Zihao , He Weiwei , Yan Mingyu , Li Runsheng
Published: December 2024

The reciprocating motion of a jet tube along its axial direction enables on-demand jetting, which is a novel method. However, related research is limited, and the jetting mechanism has not been thoroughly explained. In this study, a piezoelectric ceramic is used to drive a jet tube in a reciprocating motion to achieve on-demand jetting. Based on experimental and simulation results, the jetting process is described and analyzed, the jetting mechanism is revealed and the effects of various factors on the jetting process are discussed. The results show that the inertial force caused by abrupt changes in tube velocity is the main driving force for jetting, and the velocity changes at both ends of the tube motion stroke dominate the jetting process. During a down-then-up reciprocating motion of the tube, the inertial force pushes the liquid inside the tube downwards to form a jet and then pulls the liquid upward, causing the tail of the jet to break, achieving on-demand jetting. Changes in liquid level height and tube motion amplitude affect the jetting process by influencing the magnitude of the inertial force, while the tube motion period impacts the process by influencing the time interval of the pushing and pulling caused by inertial force, as well as the superposition of pressure waves. When the reciprocating motion of the jet tube follows an up-then-down pattern, the kinetic energy gained by the liquid during the pushing process is smaller, making this pattern less favorable for jetting.
Increased perfluorooctanoic acid accumulation facilitates the migration and invasion of lung cancer cells via remodeling cell mechanics
Authors: Mei Jie , Jiang Jipeng , Li Zhao , Pan Yue , Xu Ke , Gao Xinglong , Yuan Jing , Li Lili , Wang Yufei , Wang Liuxiang , Zhao Ailin , Jiang Shasha , Wang Xinlian , Yi Shaoqiong , Li Shilin , Xue Yueguang , Ma Yongfu , Liu Yang , Wang Yawei , Li Juan , Chen Chunying , Liu Ying
Published: December 2024

Perfluoroalkyl and polyfluoroalkyl substances (PFAS) are widely used in industrial and household products, raising serious concerns due to their environmental persistence and mobility. Epidemiological studies have reported potential carcinogenic risks of PFAS based on their widespread occurrence and population exposure. In this study, we observed that perfluorooctanoic acid (PFOA), a common PFAS, functions as a mechanical regulator in lung cancer cells. PFOA exposure reduces cell stiffness, thereby decreasing cell adhesion and enhancing immune evasion, ultimately exacerbating tumor metastasis. In various lung cancer models, more aggressive tumor metastases have been observed in the PFOA exposure group. Additionally, serum PFOA levels in patients with advanced lung adenocarcinoma were significantly higher than those in patients with early-stage disease. Mechanistically, the interaction between PFOA and transmembrane integrins in cancer cells triggers changes in cellular mechanical properties, leading to the reorganization of the cytoskeleton, and activation of the intracellular FAK-PI3K-Akt signaling pathway. Our findings demonstrate that in individuals with lung adenocarcinoma, PFOA can increase the risk of cancer metastasis even at daily exposure levels.
Temperature-dependent terahertz spectra and terahertz emission of GaTe
Authors: Li Hong , Wang Qiao , Li Qibing , Zhang Kai , Li Enen , Li Hongbo , Fang Guangyou , Wu Yirong , Hu Ping-An , Wang Tianwu
Published: December 2024

The terahertz spectra and terahertz emission characteristics of Gallium telluride (GaTe) as a function of temperature were studied by terahertz spectroscopy system, including terahertz time-domain spectroscopy, optical pump-terahertz probe spectroscopy and terahertz emission spectroscopy. The temperature range is 20 K–300 K. The temperature-dependence terahertz transmittance and dielectric properties, photocarrier recombination dynamics and terahertz radiation properties of GaTe are analyzed. As the temperature increases, thermal expansion and lattice vibration intensify, resulting in accelerated phonon scattering and reduced relaxation time. Meanwhile, due to the acceleration of the relaxation process, the carriers are rapidly recombined, which improves the terahertz transmittance of GaTe. Further, enhanced terahertz emission of GaTe was observed at low temperatures. This is because the excitation energy at low temperatures is more easily converted into transient photocurrents than energy dissipation. This work provides technical support for the fabrication of GaTe-based optoelectronic devices.
Inactivation and inhibition of Botrytis cinerea by plasma-activated water long-lived species
Authors: Guo Dingmeng , Liu Hongxia , Zhang Xiaoning , Ma Xiaoqin , Shi Yixin , Mao Junqi , Zhao Zhaoqi , Tu Zhentao
Published: December 2024

The Botrytis cinerea represents a significant threat to the quality of fruits and vegetables, reducing grape yields by up to 50%. The use of chemicals for undifferentiated control poses food safety and environmental pollution risks. This work investigated the effects of long-lived species in plasma-activated water (PAW) on the survival of spores and the development of mycelium throughout the whole process of Botrytis cinerea propagation and infestation. Additionally, the contribution of long-lived species to inactivating and inhibiting Botrytis cinerea, as well as their action mechanism were quantitatively analyzed. The results demonstrated that the content of long-lived species in PAW reached its highest level after 30 min of plasma activation. The inactivation rate of spores and inhibition rate of mycelial growth reached 100% and 83.54%, respectively. It was found that the primary long-lived species responsible for inactivating spores and inhibiting mycelium are different. H2O2 is more effective for spore inactivation (56.83%), while H2 is more efficient for mycelium inhibition (43.76%). Physiological analyses revealed that the two long-lived species, H2O2 and H2, exhibit distinct pathways for spores inactivation. H2O2 primarily disrupts spore membranes, enhances permeability, and induces exocytosis of intracellular proteins, ultimately leading to spore inactivation. H+ mainly acts on cell wall tension, elevates intracellular levels of reactive oxygen species, induces oxidative stress, and impedes physiological metabolism, resulting in spore cell inactivation.
Rapid prediction model of terahertz transmission in hypersonic plasma sheath under different flight speeds for different vehicle types
Authors: Guo Shiping , Cen Haicheng , Ouyang Wenchong , Liu Donglin , Wu Zhengwei
Published: December 2024

This work clarifies the systematic relationship and difference mechanism between flight speed, plasma sheath and terahertz transmission under different vehicle types by joint simulation model of hypersonic plasma flow and improved scattering matrix method. Significant differences in plasma sheath and terahertz transmission characteristics are observed in different vehicle types. Radio Attenuation Measurement C (RAM C) vehicle has a larger collision frequency and sheath thickness, resulting in higher terahertz attenuation than Hypersonic International Flight Research Experimentation (HIFiRE) vehicle. With the increase of flight speed, electron density, collision frequency and terahertz attenuation of the two different types of vehicles all show a significant increase, and the sheath thickness shows an opposite trend. However, the impact of flight speed on HIFiRE vehicle is much smaller than that on RAM C vehicle, which means that flight parameters have higher control accuracy for RAM C vehicle. On this basis, the systematic relationship between plasma sheath distribution and flight speed is further determined, and a rapid prediction model for terahertz transmission attenuation of different types of vehicle is developed based on a large amount of plasma sheath data. The rapid prediction model greatly reduces the calculation time and resources compared with traditional numerical methods, and its related prediction coefficients show significant differences on different vehicle types.
A new dual-channel transformer-based network for remaining useful life prediction
Authors: Yang Kai , Wei Yuxuan , Ma Yubao , Huang Lehong , Tang Qiang , Li Zhiguo
Published: December 2024

Remaining useful life (RUL) prediction is crucial for enhancing the reliability of complex systems, preventing unexpected failures, and reducing the maintenance costs of electromechanical systems. Data-driven methods, particularly deep learning, have been extensively applied in RUL prediction. However, recent methods have focused solely on long-term features, neglecting the significant role of short-term features in long sequence processes, which leads to an inability to achieve high-precision RUL prediction. In this article, a novel dual-channel network is proposed, which is based on the transformer encoder. Additionally, the approach proposes a robust dual-channel feature extraction layer that integrates a multi-scale convolution block and a gating convolution block. This integrated system is capable of capturing both long-term and short-term features from the raw data simultaneously. Compared to convolutional neural networks, recurrent neural networks and other transformer-based methods, the proposed method is more effective at extracting profound features and focusing on important information in the input. Utilizing the self-attention mechanism, the proposed model captures degradation features and achieves precise RUL prediction. Experiments conducted on the CMAPSS dataset demonstrate that the proposed method outperforms recent RUL prediction methods. The average root mean square error of the proposed method is reduced by 6.8%, and the average score is reduced by 8.5%, proving the effectiveness of the proposed approach.
Research on underground pipeline spatial positioning method based on multi-offset ground penetrating radar
Authors: Zhang Guixin , Cui Fan , Zhang Xiaoling , Cheng Qi , Wang Ran , Zhang Mengli
Published: December 2024

Accurate prediction of the spatial location of underground pipelines is crucial to ensure the safe operation of pipelines. However, the traditional ground penetrating radar (GPR) relies too much on the image data quality and the detection personnel’s experience. It can only estimate the approximate location of the underground pipeline. The acquisition of electromagnetic wave velocity is an essential part of accurately interpreting the spatial location of underground pipelines. Therefore, this paper’s research proposes a data processing flow that can be applied to multi-offset GPR, including multiple stacks of the same target and interactive velocity spectrum. The accuracy and practicability of the method are verified by numerical simulation and field tests. The research shows that multiple stacks can effectively suppress noise and enhance the signal characteristics of deep targets. In the simulated data, traditional GPR distance errors for layered structures and pipelines are 0.06 m and 0.13 m. In comparison, the distance error of the method proposed in this paper is 0.019 m in layered structures, which is a reduction of 5.86% in relative error. The pipeline distance error is 0.029 m, and the relative error is reduced by 10.1%. The distance errors of traditional GPR and multi-offset GPR for pipelines in field tests were 0.15 m and 0.093 m, respectively, with a reduction of 8.77% in the relative error.
Open-set fault diagnosis based on dynamic triple multivariate guided structural constraints
Authors: Wang Jiaqi , Liu Ping , Gao Jun , Liu Tong , Wang Xiaoli
Published: December 2024

Existing deep learning-based models for mechanical fault diagnosis perform well in identifying predefined faults, but these models substantially degrade in performance when they encounter unknown faults. Thus, it is crucial to investigate open-set fault diagnosis that can handle unknown faults more efficiently. Current methods for open-set fault diagnosis in machinery face challenges by the lack of hierarchical structure in feature representation and the overlapping regions of known and unknown sample distributions. To solve these problems, we propose a composite dual-branching dynamic triplet multivariate constrained (CDDTMC) model for mechanical open-set fault diagnosis. The CDDTMC framework consists of three main core modules: a feature extraction module, a structural constraint module and a fault diagnosis module. In the feature extraction module a composite two-branch network is designed to extract hierarchical feature representations from known samples. After extracting the sample features, it represents the samples with structural constraints using multivariate constraints based on bidirectional dynamic triplet loss to achieve discriminativeness and compactness. Determining the optimal decision boundary for each category based on the structural constraints and uses a distance-based diagnostic algorithm to identify fault diagnosis. We conducted experiments on two publicly available bearing datasets to validate the performance of the model. The results show that the model improves the average accuracy classification by 10.73% and 13.84%, respectively, compared to other comparative model.
Adsorption of molecular hydrogen on extended graphene prototypes decorated with sodium: a quantum-mechanical study
Authors: García-Arroyo Esther , Bartolomei Massimiliano , Hernández Marta I , González-Lezana Tomás , Mella Massimo , Campos-Martínez José
Published: December 2024

This paper presents a study of sodium-decorated circumcircumcoronene, a large polycyclic aromatic hydrocarbon (PAH) regarded as a graphene prototype, and the complexes formed upon aggregation of hydrogen molecules on this substrate. Accurate force fields based on high level electronic structure calculations have been built using a rigid rotor model for the hydrogen molecules as well as a corresponding pseudo-atom approximation, aimed to pursue larger compounds where a simpler treatment could be helpful. Structural and energy features of the hydrogen adsorption have been then analyzed by means of quantum Monte Carlo methods. A large stabilization of the adsorption energy is found for up to four H2 molecules attached to the alkali atom, in agreement with conclusions reached from previous studies on smaller Na-decorated PAHs. Adsorption patterns are examined in detail as the number of attached molecules is increased, comparing with results on smaller substrates and analyzing the effects of rotational orientation by contrasting the rigid rotor versus pseudo-atom approaches.
A novel analytical iterative approach to time-fractional Vibration equation using Aboodh transform
Authors: Akshey  , Singh Twinkle R
Published: December 2024

The main aim of the work is to achieve the approximate analytical solution of a time-fractional vibration problem for large membranes via Aboodh transform iterative method (ATIM). The ATIM method is the combination of Daftardar-Gejji's New iterative method and Aboodh transform. The fractional derivative operator is considered in the sense of Liouville-Caputo. The approximate-analytical solutions of the proposed equation for multiple situations have been determined by utilizing the initial values, which has accelerated the quick convergence of the series solution. The proposed method performs extremely well in terms of simplicity and effectiveness. Using the fixed point theorem the existence and uniqueness of the proposed problem have been stated. The validity and applicability of the technique are shown for obtaining approximate analytical solutions for different particular cases which are presented numerically and graphically. Many science and engineering problems can be solved analytically and numerically using the proposed approach.
Dynamical analysis and DSP implementation of 3D Hopfield neural network under dual memristive electromagnetic radiation
Authors: Cheng Minyuan , Cao Yinghong , Li Peng
Published: December 2024

Numerous important biological neural activities, such as changes in their own firing patterns and information transmission between neurons, are affected to some extent by electromagnetic radiation in the external environment. To explore the impacts of two different external electromagnetic radiation stimulation on neuronal activities in a neural network, a 3D Hopfield neural network under dual memristive electromagnetic radiation (DMEMRHNN) is proposed in this paper. Firstly, two memristor models for simulating different external electromagnetic radiation are proposed and introduced into the 3D Hopfield neural network (HNN), thus constructing the DMEMRHNN. Then, the rich dynamical behavior changes of the DMEMRHNN under the influence of parameters such as electromagnetic radiation intensity are analyzed. At the same time, the coexisting attractors, state transition, and rare and interesting 4-symmetric remerging Feigenbaum tree phenomena are discovered. Finally, the simulation results of the DMEMRHNN on MATLAB are verified through DSP experimental platform.
Galactic Compton wavelengths in f(R) screening theories
Authors: March Bradley , Burrage Clare , Naik Aneesh P.
Published: December 2024

f(R) theories of modified gravity may be compatible with current observations if the deviations from general relativity are sufficiently well screened in dense environments. In recent work [1] we have shown that approximations commonly used to assess whether galaxies are screened, or unscreened, fail to hold in observationally interesting parts of parameter space. One of the assumptions commonly made in these approximations, and more broadly in the study of f(R) models, is that the mass of the scalar mode can be neglected inside a galaxy. In this work we demonstrate that this approximation may fail spectacularly and discuss the implications of this for tests of the theory.
Reversed magnetic shear scenario development in NSTX-U using TRANSP
Authors: Galante M.E. , Boyer M.D. , Uzun-Kaymak I.U. , Foley E.L. , LeBlanc B.P. , Levinton F.M.
Published: December 2024

Understanding and control of electron thermal transport is a critical point of research in magnetic fusion experiments. Previous experiments have shown that operation with reversed magnetic shear (RMS) can suppress electron thermal transport, resulting in the generation of internal transport barriers (ITBs), with the location of the ITB correlated with the location of minimum magnetic shear. The recent upgrades to NSTX—increased magnetic field up to 1 T, increased plasma current up to 2 MA, 2nd neutral beam—present an increased operating space in which to explore electron thermal transport in RMS plasmas. Utilizing TRANSP, we have developed operating scenarios by which to generate RMS in NSTX-U. The results suggest that RMS in NSTX-U can be generated through fast current ramp and early beam injection into a large plasma volume. This is very similar to the procedure that was followed in both TFTR and NSTX to generate RMS. Sustainment of RMS, disregarding non-(

q

min

= 1) MHD events, requires maintaining a large plasma volume, and increasing the core

T

e

, either via increased plasma current and/or adding heating power. Using this procedure, RMS was sustained for ∼1 s, with

q

min

>

1 for that period.
Spatio-Temporal Analysis of Susceptibility Hazardous and Risk Mapping in Post-2023 Simangulampe Devastating Flood
Authors: Tampubolon Togi , Yanti Jeddah , Hutahaean Juniar , Siregar Gomgom P.
Published: December 2024

Over 169 people along the Simangulampe upstream were under devastating flood and worst landslide watches in December 2023 due to a significant storm bringing the heaviest rainfall and moving giant boulders. Indeed, there are far fewer studies and information on susceptibility hazards in Simangalumpe than in others. First-rate information on impressive risk mitigation strategies increased climate-change consideration and reduced flood risk. We adopt C-band synthetic aperture radar and multispectral imagery from Sentinel to identify, visualize, and analyze flash flood mapping and mitigating to address this issue. Precisely, Simangalumpe flood is considered from surface water indices with various parameters: Normalized Difference Vegetation Index (NDVI), Normalized Difference Water Index (NDWI), Modified NDWI (MNDWI), and SAR flood inundation mapping. Results show low NDVI values- over 50 percent of plant canopies are damaged (uprooted and broken trees) along Simangulampe upstream. Combining multispectral and SAR properties of the surface water index shows the surface extent of water bodies in Simagalumpe upstream and covers giant boulders. Finally, developing spatial and temporal analysis from multispectral and SAR data results in information on mitigating flash flooding and reducing unnecessary threats.
Physical, Structural and Optical Properties of Rare Earth RE3+ (Ce; Nd; Tb) doped Borosilica Glass Medium
Authors: Simamora Pintor , Rajagukguk Juniastel , Panggabean Jonny Haratua , Simanullang Elyzabeth , Sarumaha Chayani , kaewkhao Jakrapong
Published: December 2024

Borosilicate glass doped with Re3+ ions (Ce; Nd; Tb) by Melt Quenching method with chemical composition of 10 SiO2 + (50-x) B2O3 + 10BaO + 30Na2O + 0.5x (x = CeF3, Nd2O3, Tb2O3). The synthesized glass is known through physical properties, XRD, FTIR and Absorption Spectra. The molar density and volume increased with the variation of Re3+ ions (Ce; Nd; Tb). XRD spectra were used to determine the structural properties of the glass medium samples, FTIR was recorded from wavelengths of 750-4000 cm-1. The absorption spectra can be observed in the UV-Vis-NIR region of 300-100 nm
Evaluation of sequencing batch reactor performance in handling organic shock loads of ammonia wastewater
Authors: Budiastuti H , Salsabila R N , Anisa S N , Keryanti
Published: December 2024

The urea fertilizer industry, in its production process, produces wastewater with a very high ammonia content, which can reach up to 20.000 mg/L. Therefore, before being discharged into water bodies, wastewater needs to be treated, one of which is using a sequential reactor named Sequencing Batch Reactor (SBR). SBR technology is a simpler technology compared to conventional activated sludge because in its whole process, SBR only needs one reactor. SBR is also able to handle organic and hydraulic shock loads that often occur in industry. The aim of this research is to evaluate the performance of SBR in reducing ammonia and COD contents in wastewater during normal organic loads and when organic shock loads occur. The research results showed that seeding and acclimatization processes were successfully conducted. SBR was fairly capable in reducing ammonia and COD levels in wastewater during normal loading (16.478 mg/L of ammonia) and during organic shock loading (20.198 mg/L of ammonia). The efficiency of reducing ammonia and COD levels was 68.16% and 79.43%, respectively during normal loading; 37.5% and 85.72% during organic shock loading; 36.11% and 93.98% when organic shock loading was continued for 15 days without addition of wastewater feeding for 7 days.
GEANT4 simulation of the application of a high-current repetitively pulsed electron accelerator SINUS-320 for the sterilization of cocoa powder
Authors: Cherepennikov Yu. , Afanasiev K. , Gauzshtein V. , Shevelev M.
Published: December 2024

A preliminary study of the use of the high-current repetitively pulsed electrons accelerator SINUS-320 for the sterilization of cocoa powder was conducted through statistical simulations. It was shown that the SINUS-320 generator allowed for the effective sterilization of cocoa powder with a layer thickness of 5–7 mm when operating at accelerating voltages of 550 kV. The study was conducted through statistical modelling using the GEANT4 simulation toolkit. The results are presented as a dependence of the radiation dose on the depth of exposure.
Study of L-nitroarginine perchlorate and L-nitroarginine tetrafluoroborate crystals
Authors: Sukiasyan R P , Apreyan R A , Danghyan A A , Gharibyan N S , Atanesyan A K
Published: December 2024

In the present work, we report the results of vibrational spectroscopic (Fourier transform IR and Raman), UV-Vis transmission, thermal properties, and nonlinear optical activity of L-nitroarginine perchlorate (L-NNA·HClO4) and L-nitroarginine tetrafluoroborate (L-NNA·HBF4) crystals. The NLO activity of crystals was measured. All study data of crystals were compared with L-arginine perchlorates, L-arginine tetrafluroborates, and L-nitroarginine data. Bulk single crystals of L-NNA· HClO4 and L-NNA·HBF4, semi-organic nonlinear optical (NLO) materials, have been grown from an aqueous solution.
Inter-pixel cross-talk as background to two-photon interference effects in SPAD arrays
Authors: Kulkov Sergei , Potuckova Tereza , Bernasconi Ermanno , Bruschini Claudio , Milanese Tommaso , Charbon Edoardo , Shawkat Mst Shamim Ara , Nomerotski Andrei , Svihra Peter
Published: December 2024

Cross-talk is a well-known feature of single-photon
avalanche detectors. It is especially important to account for this
effect in applications involving temporal coincidences of two or
more photons registered by the sensor since in this case the
cross-talk may mimic the useful signal. In this work, we
characterize the cross-talk of the LinoSPAD2 detector, as well as
perform joint measurements of the cross-talk and Hanbury Brown-Twiss
two-photon interference, comparing and cross-calibrating both
effects. With a median dark count rate of 125 cps/pixel, we report
the average cross-talk probability of 0.22% for the nearest
neighbor and also observe a long-range cross-talk of the order
2 · 10-5% for channels separated by up to 20 pixels.
Effect of Packaging & Storage Duration to RGL Mandarin Citrus Quality
Authors: Ivanti Lina , Siagian Irma C. , Mikasari Wilda , Hutapea Nelly , Cahyaningrum Herma , Hidayat Taufik , Ambarsari Indrie
Published: December 2024

RGL Mandarin Citrus (Citrus reticulata Blanco) have economic value and widely developed in Sumatra region such as Bengkulu Province. RGL Mandarin Citrus shelf life at room temperature is very short. Packaging and cold storage are common used to extend fruit shelf life The aim of this study was to examine the influence of packaging variations on the quality of RGL Mandarin Citrus during storage. The experiment was conducted using two factors in a completely randomized design (CRD) factorial with 4 replications. The treatments were : 1) variations of packaging that consisted of wrapped plastic as a cover and polyethylene plastic packaging and 2) storage duration. Every five days, on days 0 through 60, observations were made regarding the amount of weight lost, diameter height & width, juice content, titratable acidity, total soluble solids, and vitamin C content. The result showed that combination of packaging and storage time does not show any interaction with the entire packaging variable, but there is an independent effect of treatment on some variables. The storage period has a tangible effect on the entire observation variable except the width of the diameter. Meanwhile, packaging treatment has no tangible impact on the juice and vitamin C level variables, but has a significant impact on all observations at the 95% confidence level (P<0.05). Then, RGL Mandarin Citrus can be stored for up to 60 days at 10°C with cling wrap packaging. Due to juice criteria, it can only be stored for a maximum of 30 days. In the meantime, RGL Mandarin Citrus should only be stored for up to 45 days according to the vitamin C quality standard.
The Effectiveness of Biopharmaceuticals in Controlling Warehouse Pests in the Storage of Feed Ingredient
Authors: Pustika Arlyna B , Widyayanti S , Winarti E , Gunawan  , Mahdayani C , Sutoko N A , Purwanti N H , Mugiasih A , Sudarmaji
Published: December 2024

Warehouse pest control is often carried out by using synthetic insecticide such as methyl bromide, hydrogen phosphine and pyrethroids to sprayed on the surface of materials. Biopharmaceuticals from Zingiberaceae family can be used for botanical pesticides as a component of pest control including warehouse pests. The research aim to determine the effect of the application of galangal powder, black curcuma, and yellow curcuma on warehouse feed storage materials to pest mortality, life cycle and material shrinkage. The experiment was carried out from February to May 2020 and arranged in a Completely Randomized Design with 2 factors and 3 replications. The first factor was biopharmaceuticals consisting of galangal, black curcuma, yellow curcuma, and control, whereas the second factor was storage feed ingredients consisting of fresh dried cassava powder (DCP), expired DCP, peanut husk (PH), and copra meal (CM). Observation of pest mortality, life cycle, and the material shrinkage was conducted every two weeks. Data was analyzed using analysis of variance at a level of 5%, then Duncan’s Multiple Range Test was further used to determine the effect of each treatment. Results showed that there was a positive interaction between galangal biopharmaceuticals and the mortality increase of Sitophilus zeamays and Tribolium castaneum. Galangal had a significant effect on the highest mortality of both pests whereas Sithopilus zeamays and Tribolium castaneum mortality were 58,57% and 49,67%, respectively. Galangal and fresh dried cassava also had a significant effect on decreasing hatch of eggs of the two pests.
Effectiveness of Types of Additives on the Quality of Chicken Feather Compost
Authors: Dewi S S , Mulyono  , Koeswara D D , Hartanto T
Published: December 2024

Chicken feathers contain nutrients that are essential for plant growth, including high nitrogen levels (11.8%) and low carbon-to-nitrogen ratios (7.18). This necessitates the introduction of additives to enhance the carbon-to-nitrogen ratio of chicken feather compost. The objective of this research is to examine the impact of additives utilized as a mixture for composting chicken feathers. The application of additives has the potential to enhance the quality of the resulting compost, ensuring that nitrogen is not lost as ammonia gas and that the final product meets the standards set forth by the SNI compost standard. This research was conducted using a complete experimental method, as outlined in the following sections. The quantity of the combined ingredients is determined by calculating the C/N ratio, which is set at 30:1. The following treatment was applied: A = (chicken feathers 5 kg + coconut husk powder 14.6 kg), B = (chicken feathers 5 kg + teak sawdust 7.65 kg), C = (chicken feathers 5 kg + dried teak leaves 15.5 kg), D = (chicken feathers 5 kg). The experimental design comprised four treatments, each replicated three times, resulting in a total of 12 experimental units. The composting process was conducted for 35 days, and the optimal mixture was identified as chicken feathers combined with Nano Biochar and urea as a substitute for nitrogen fertilizer.
Physicians From or After the Time of Galen
Authors: Usaybiʿah Ibn Abi¯
Published: December 2024

Galen is perhaps the most important figure in the book for Ibn Abī Usaybiʿah and recurs as a presence and model for all physicians throughout. Devoted almost entirely to him, this chapter comprises the longest single biography in the original text. It is also the...
First Canto
Authors: Ludovico Ariosto
Published: December 2024

1–4 Introductory.

5–9 The background.

10–32 Angelica flees from Rinaldo and meets Ferrau.

33–81 Angelica flees from Rinaldo and meets Sacripant.

I sing of knights and ladies, of love and arms, of courtly chivalry, of courageous deeds—all from the time when the Moors crossed...
Forty-First Canto
Authors: Ludovico Ariosto
Published: December 2024

1–3 Introductory.

4–22 Ruggiero vanquishes Dudone, sets sail with his freed prisoners and meets with shipwreck.

22–46 Orlando, Brandimart, and Oliver, having equipped themselves with such arms as Fortune brought them, go to their battle with Agramant, Gradasso, and Sobrino.

46–67 Ruggiero survives shipwreck to...
Forty-Third Canto
Authors: Ludovico Ariosto
Published: December 2024

1–5 Introductory.

6–46 Rinaldo hears the Mantuan knight’s tale of the cup which betrays infidelity.

47–144 Continuing his journey, Rinaldo hears the boatman’s tale of the magic dog.

145–199 Brandimart’s funeral, and the reunion of Christian champions on the hermit’s rock.

O detestable avarice!...
Forty-Fourth Canto
Authors: Ludovico Ariosto
Published: December 2024

1–3 Introductory.

4–34 The triumphal return to Charlemagne’s court; Astolfo dismisses his helpers.

35–75 Bradamanf’s parents thwart Rinaldo’s promise of her to Ruggiero.

76–104 Ruggiero goes to the Orient to slay his rival, Leo.

The bond of friendship tends to be better secured in...
Forty-Fifth Canto
Authors: Ludovico Ariosto
Published: December 2024

1–4 Introductory.

5–21 Ruggiero, thrown into a dark dungeon, awaits death.

22–81 Ruggiero, rescued by Leo, is sent in Leo’s guise to win Bradamant in combat.

82–117 While Ruggiero and Bradamant mope at their mutual loss, Marfisa obtains that Leo should still fight Ruggiero for...
The Narrative of the Persecution of Agnes Beaumont
Authors: Norwood Richard
Published: December 2024

[The following note is prefaced to the original manuscript:]

Written by one Agnes (Beaumont) of Edworth, Beds. intimately acquainted with John Bunyan, and to whose meetings she went contrary to her father’s wishes, he objecting to his daughter attending such. She mentions his name...
Intellect and intuition
Authors: Landy Joshua
Published: December 2024

This chapter discusses the prominent place given by Proust to two mental faculties: intellect and intuition. This pair of faculties more or less maps onto conscious and unconscious parts of the mind—a division for which Proust did not need Freud, since plenty of other thinkers had been talking about unconscious forces over several decades prior to his arrival. In Proust, intellect and intuition sometimes compete with each other, offering conflicting hypotheses about the outside world; sometimes they operate independently; but in the most interesting cases they work together, making possible lucid self-delusion, involuntary memory, self-understanding, and even the creation of art.