bluuebunny/crossref_metadata_2025_split huggingface dataset:
Integrated trispectrum detection from BOSS DR12 NGC CMASS
Authors: Gualdi Davide , Verde Licia 
Published: September 2022

Abstract
We present the first detection of the integrated trispectrum (i-trispectrum) monopole and quadrupoles signal from BOSS CMASS NGC DR12. Extending the FKP estimators formalism to the Fourier transform of the four-point correlation function, we test shot-noise subtraction, Gaussianity of the i-trispectrum data-vector, significance of the detection and similarity between the signal from the data and from the galaxy mock catalogues used to numerically estimate the covariance matrix. Using scales corresponding to modes from minimum k
min = 0.03 h/Mpc to maximum k
max = 0.15 h/Mpc, we find a detection in terms of distance from the null hypothesis of (10.4,5.2,8.3,1.1,3.1) σ-intervals for the i-trispectrum monopole 𝒯(0) and quadrupoles (𝒯(2000),𝒯(0200),𝒯(0020),𝒯(0002)) respectively. This quantifies the presence of the physical signal of the four-points statistics on BOSS data. For completeness
the same analysis is also performed for power spectrum and bispectrum, both monopoles and quadrupoles.
Tailoring the pulse train of an optical frequency comb with a magnetized atomic medium
Authors: Yan Yang , Yuan Jinpeng , Wang Lirong , Xiao Liantuan , Jia Suotang 
Published: September 2022

Abstract
Selecting specific modes from the complete pulse train of optical frequency comb (OFC) is helpful in ultra-narrow linewidth laser preparation. Here, the mode selector for a commercial OFC based on the magnetized atomic medium is demonstrated in both theory and experiment. Only the comb modes with specific frequencies experience polarization rotation because of the Faraday effect, thus the mode tailoring can be realized by eliminating unchanged OFC modes via polarization selection. The theory study demonstrates the rich tunability of this device, and three specifically chosen operating conditions validate the system’s characteristics. The selected pulse group is distinguished in both optical and frequency spectrum, where spectral differences and bandwidth can be observed accordingly. Further, the selected pulse group and a continuous-wavelength laser stimulate an electromagnetically induced transparency spectrum in the hyperfine Paschen–Back regime to show the pulse group characteristics in detail. The method proposed provides the experimental foundation for producing narrow linewidth lasers from a polychromatic source with tailored results retaining the excellent characteristics of the original.
Towards explanation of ‘broad’ and ‘narrow’ ECRH regimes observed in the GDT experiment
Authors: Shalashov A.G. , Gospodchikov E.D. , Khusainov T.A. , Solomakhin A.L. , Yakovlev D.V. , Bagryansky P.A. 
Published: September 2022

Abstract
In the experiments with combined ECRH and NBI plasma heating started at the GDT facility (Budker Institute) in 2014, two quite different scenarios of plasma discharges were realized. The first one was characterized by a broad radial distribution of the absorbed ECRH power and a stable plasma with improved energy confinement of fast ions, while in the other the electron temperature profile was highly peaked with local values of T
e > 500 eV, but plasma was susceptible to low-frequency instabilities that had a net negative effect on confinement. We discuss the first theoretical explanation of these phenomena. Essentially different temperature profiles are considered as a result of self-consistent evolution in time after the ECRH is switched on. To explore this concept, we combine an advanced quasi-optical model for the calculation of microwave power absorption with a simple transport model describing electron energy balance in a gas-dynamic trap.
Exponential sum of the first kind
Authors: Kiran Babu E , Raghavendra Prasad V , Rajasekhara Goud Y 
Published: September 2022

Abstract
This paper is mainly concerned with a new exponential sum which unifies Unitary Ramanujan sum and Unitary Nagell’s Totient function. A formula for this sum and Holder equality are obtained using the structure of certain classes of integers.
Fuzzy inventory model without shortages using GMI approach
Authors: Vasanthi P , Ranganayaki S , Kasthuri R 
Published: September 2022

Abstract
The aim of this research work is to come out with an inventory model without shortages involving set-up cost and holding cost as imprecise variables. The uncertainty is chosen as fuzzy number in triangularized form and the graded mean integration method is applied to defuzzify the parameters. The effect of defuzzification is explained by analyzing for different input values through numerical examples.
Results on Graph Energy
Authors: G Sangeetha , Kavitha J 
Published: September 2022

Abstract
Adjacency matrix A(G)=[aij] yields the graph energy, which is equal to the addition of absolute values of the eigenvalues G. This research investigates the energy graph class in terms of another graph class after removing a vertex. After deleting a vertex, a relationship between the energy of a complete graph E[kn
] and energy of a splitting graph E(S’ [kn
]) is discovered.
Influence of Body Acceleration and Slip Velocity on Fluid Flow in a Multi-Stenotic Artery
Authors: Asha K N , Srivastava Neetu 
Published: September 2022

Abstract
Blockage of arteries by the formation of plaques causing stenosis is a major health problem among human beings.In this study, a model is developed for the flow through a multi-stenosed elastic artery segment under the effect of body acceleration and slip velocity. Fluid is regarded as Non-Newtonian Bingham Plastic Fluid. The equations representing the model are solved analytically using Perturbation Method. Result is discussed for velocity, wall shear stress and volumetric flow rate by varying several parameters like pulse frequency, slip parameter and Womersley Frequency parameter graphically.
Design and Analysis of a Compact Hydraulic Bolt Tensioner
Authors: Kumar G Chethan , Reddy Mungara Srinivas , Sanjan Joseph 
Published: September 2022

Abstract
In equipment like high pressure vessels, there will caps on which loads of the order of several thousands of tons acts. Such caps require a huge number of big-diameter bolts, often M70 to M150mm in diameter. Each bolt will be subjected to a tremendous amount of force, on the order of 300 tons. The use of hand-operated wrenches to apply such a load is deemed out. When a high number of bolts are tightened on the flange, the applied load is lost owing to friction at the clamping surface and the applied load is not uniform. It is advised that a hydraulic bolt tensioning system be used to address these drawbacks. The device operates at a pressure of 1500 bar, which is extremely high. Therefore, the equipment must be designed to ensure the device’s compactness and safety. Bolt tensioners are used to tighten bolts and studs in a variety of important applications. These devices would be imported. It was proposed in this work that a small hydraulic bolt tensioner be designed and analysed using both theoretical and finite element analysis (Non-liner static analysis). The required boundary conditions and applied pressure were computed. The tensioner’s design was optimized to assure its safety and compactness.
Temperature Effect On Reactive Powder Concrete Using Sillimanite As Fine Aggregate
Authors: Sophia M , Soundarya N 
Published: September 2022

Abstract
This study examines the use of sillimanite as a fine aggregate in the production of temperature-resistant reactive powder concrete. The impact of high temperatures on the mechanical strength of reactive powder concrete with High Alumina cement is investigated. The effectiveness of utilizing glass powder and sillimanite on the mechanical properties of RPC at high temperatures is investigated in this research. The samples were heated in the muffle furnace to the desired temperatures and then tested for their residual compressive strength, flexural strength and split tensile strength. The residual values of compressive strength, flexural strength and split tensile strength were measured at the temperature of 270C to 800°C. The weight loss of the specimens after exposure to the elevated temperatures was measured and the values showed enhanced resistance to the high temperature effects. The results demonstrate the greater contribution of glass powder and sillimanite towards the significant improvement of high temperature strength of reactive powder concrete than those made with normal quartz sand as fine aggregate.
Effect of substrate type on the lattice structure of AlN thin films annealed at high temperature
Authors: Dong Ling , Li Yang , Jiang Hongchuan , Zhao Xiaohui , Zhang Wanli 
Published: September 2022

Abstract
To measure the surface temperature of aerospace hot-end components accurately, AlN thin film temperature measurement technology is being explored. The core of this temperature measurement technology is the evolution law of the lattice structure with temperature, but the influence of substrate on its lattice structure is still unclear. In this research, C-axis preferred orientation AlN thin films were deposited on Ni-based superalloy and quartz glass substrates by Mid-frequency reactive magnetron sputtering. The effect of substrate type on the lattice structure of annealed AlN thin films was investigated. It was found that with the increase of temperature, the lattice structure parameters (2θ) of AlN thin films deposited on Ni-based superalloy gradually shifted to the left, while those of AlN thin films deposited on quartz glass keep a constant until 1300 °C. The results reveal that quartz glass substrate has no influence on the lattice structure of AlN thin films as long as the temperature is lower than 1300 °C. Quartz glass substrates are suitable for follow-up research of AlN thin film temperature measurement technology.
Effect of annealing on morphology of Si based Ge quantum dots grown by magnetron sputtering
Authors: Shu Qijiang , Zhang Xicheng , Wang Zhan , Wang Zhi 
Published: September 2022

Abstract
Silicon-based germanium quantum dots (Ge/Si QDs) have shown important application potential in optoelectronic devices due to their excellent properties, which made their controllable growth of morphology and structure become a research hotspot in recent years. This paper discussed the morphological evolution of Ge/Si QDs undergone different annealing, such as natural cooling, in-situ annealing followed by natural cooling, natural cooling followed by rising temperature for annealing, and natural cooling followed by moving the sample into a rapid annealing furnace for annealing. The formation process of QDs was analyzed based on the measurement results of atomic force microscope (AFM) and the thermodynamic and kinetic theories of thin film growth. The results showed that the influence of in-situ annealing in magnetron sputtering growth chamber on the morphology of QDs was different from that of annealing in rapid furnace due to the great difference of temperature-time curves between the two processes. Surprisingly, high-density and small-size Ge/Si QDs can be produced by using a process of in-situ natural cooling followed by rapid annealing, which provided a new idea for the preparation of high-quality QDs used for future devices.
Rebalance and Smear for multi-jet background estimation
Authors: Bein Samuel , Sander Christian 
Published: September 2022

Abstract
For particle collider searches for physics beyond the Standard Model in final states with jets and missing transverse momentum, events from QCD multi-jet processes are an important and challenging background contribution. The CMS and ATLAS experiments have previously developed data-driven methods designed to succeed where Monte Carlo methods suffer large theoretical and experimental uncertainties. One such method is Rebalance and Smear (R&S), which predicts QCD backgrounds by applying a series of folding and unfolding techniques to data control regions. A top-to-bottom description of the R&S method is presented, along with a discussion of its applicability and limitations. A software application is provided that performs the R&S method using public, non-proprietary tools, interfacing with data sets produced by Delphes3. In general, the method is suitable for predicting multi-jet backgrounds in searches for stable non-detectable particles, such as dark matter candidates. A case study is carried out in simulated events of proton-proton collisions at √s = 14 TeV in the context of a potential search for Higgsino dark matter produced in the decay products of supersymmetric quark partners. Sources of potential bias are explored and prescriptions for evaluating systematic uncertainties are suggested.
Generation of graphene oxide and nano-bioglass based scaffold for bone tissue regeneration
Authors: Kumari Shikha , Singh Divakar , Srivastava Pradeep , Singh Bhisham Narayan , Mishra Abha 
Published: September 2022

Abstract
Graphene oxide (GO) offers a distinct opportunity in the field of biomedical engineering owing to its exceptionally high mechanical strength, excellent electrical conductivity, high optical transparency, and favorable biocompatibility. In this article, nanocomposite biocompatible GO-based scaffolds (chitosan/gelatin/nanobioglass/GO) Ch-G-NBG-GO were successfully fabricated through freeze drying technique (−40 °C) and evaluated for various physico-chemical and biological properties. The prepared Ch-G-NBG-GO composites have been investigated for their structural, physiochemical, and surface morphology via x-ray diffraction (XRD), high resolution scanning electron microscope, Fourier transform infrared spectroscopy, thermogravimetric analysis (TGA), energy-dispersive x-ray Spectroscopy and, differential scanning colorimetry (DSC) respectively. The morphological analysis showed the porous interconnected network of scaffold formed. Average pore size for the Ch-G-NBG-GO scaffolds were in between 90 and 120 μm, which was very close to the control scaffolds. XRD data revealed the successful incorporation of NBG and GO and distribution across the scaffolds. Porosity of the fabricated scaffolds were in the range between 75.3% and 77.3% which was very close to the control scaffold with 79% porosity. The studies also reveal that after GO incorporation, the weight loss reduced (0.11 ± 0.02–0.095 ± 0.03), scaffolds were firmly stable at room temperature even after a long duration of 28 d. The crystallinity added to the scaffolds due to addition of GO nanoparticles improved the mechanical strength of these scaffolds. The compressive modulus changed from (5.7 to 8.51) MPa after GO addition. Swelling ratio changed drastically especially in case of Ch-NBG-90%GO (4.9 ± 0.04–4 ± 0.01). DSC and TGA data revealed the thermal stability of GO incorporated scaffolds due to the proper interaction between GO/NBG with chitosan-gelatin blend. The scaffold’s potential for bone tissue engineering was evaluated by testing its cytocompatibility for MG-63 cell line. It revealed suitable cell attachment and proliferation of cells compared to the Ch-G-NBG scaffold. MTT assay showed that Ch-G-NBG-GO scaffold below 90% GO concentration possess best biocompatibility. But in case of Ch-G-NBG-90%GO scaffold, the cell proliferation was reduced when compared to control scaffolds. Alkaline phosphatase activity suggested improved osteogenic differentiation of MG-63 cells over GO based scaffolds and this was due to the osteogenic potential of NBG and GO present in the scaffolds. Based on these results, the nano-biocomposite scaffold appears to have the potential for utilization in bone tissue restoration, replacement and regeneration.
Who has the future in mind? Gender, time perspectives, and pro-environmental behaviour
Authors: Hoffmann Christin , Hoppe Julia Amelie , Ziemann Niklas 
Published: September 2022

Abstract
An individual’s relation to time may be an important driver of pro-environmental behaviour. We studied whether young individual’s gender and time-orientation are associated with pro-environmental behaviour. In a controlled laboratory environment with students in Germany, participants earned money by performing a real-effort task and were then offered the opportunity to invest their money into an environmental project that supports climate protection. Afterwards, we controlled for their time-orientation. In this consequential behavioural setting, we find that males who scored higher on future-negative orientation showed significantly more pro-environmental behaviour compared to females who scored higher on future-negative orientation and males who scored lower on future-negative orientation. Interestingly, our results are completely reversed when it comes to past-positive orientation. These findings have practical implications regarding the most appropriate way to address individuals in order to achieve more pro-environmental behaviour.
The deadly effect of day-to-day temperature variation in the United States
Authors: Hovdahl Isabel 
Published: September 2022

Abstract
Recent research has found anthropogenic forcing to also affect day-to-day variability of temperatures. For many people, the climate is not only becoming hotter but also more volatile. Based on the new climate-economy literature, I explore the historical impact of day-to-day temperature variation on mortality in the United States over a 35-year period. I find that an extra

+
1

∘

C of daily temperature variability caused an additional 0.206 deaths per 100  000, equal to a 0.28% increase in the average monthly mortality rate. There is, however, evidence of adaptation to daily temperature variability as income and access to air-conditioning have increased and as people have become accustomed to large seasonal variation in temperatures. Given the deadly effect of day-to-day temperature variation, falling average daily temperature variability in the US since 1970 could have resulted in as many as 1400 and 1600 premature deaths avoided every winter and summer, respectively. In comparison, the increase in the number of days with a mean temperature above 35 ∘C could have caused an additional 655 premature deaths every year. These back-of-the-envelope calculations show that current estimates of the social cost of carbon are omitting an important channel for the mortality impact of climate change by not considering this additional effect of temperature volatility.
A modified habitat quality model to incorporate the effects of ecological restoration
Authors: Ma Ruiming , Lü Yihe , Fu Bojie , Lü Da , Wu Xing , Sun Siqi , Zhang Yunlong 
Published: September 2022

Abstract
Ecosystem restoration has the potential to improve the ecological environment, increase ecosystem service delivery capability, and promote biodiversity conservation. Although habitat quality (HQ) is being widely used as a metric for large-scale biodiversity conservation, it is poorly understood and measured in areas with significant vegetation restoration (VR). This study proposes a modified approach based on the InVEST-HQ module by coupling Normalized Difference Vegetation Index to measure the HQ in the Yellow River Basin (YRB) with extensive VR in recent decades. The results show that the VR area with significant increases in both Leaf Area Index and net primary production accounts for 29.7% of the total area of the YRB. The original and modified modules were compared. Based on the InVEST-HQ module, the results show that HQ has a tendency for very small changes in the years 2000, 2010, and 2020, with first a small increase and then a small decrease; however, HQ based on the modified method has a significantly increasing trend, which is consistent with the ecological restoration status of the study area and the trend of key ecosystem parameters. The modified method effectively expresses HQ changes with VR, making it more appropriate for usage in areas where nature conservation and ecosystem restoration are important management actions, allowing for realistic decision-making and data support for regional biodiversity conservation and habitat management.
Computational investigation of the dynamic response of silicon carbide ceramic under impact loading
Authors: Muhammad Riaz , Khan Numan , Hussain Ghulam , Ullah Nasim , Mohammad Al-Sharef , Al Ahmadi Ahmad Aziz 
Published: September 2022

Abstract
It is estimated that by 2027, the global ballistic ceramic composites market would reach a value of US$3.67 billion. Many nations are increasing their military spending in order to better safeguard their military personnel, which has resulted in a tremendous increase in the market. As a result of the growing need for lighter, stronger, and harder ballistics, SiC-based composites are predicted to be the most lucrative of all ceramic materials. The study describes a finite-element model for ceramic carbide based on Johnson and Holmquist’s well-suited constitutive model for ceramics. The dynamic material tests of Strassburger et al [Strassburger, E., H. Senf, and H. Rothenhäusler, 1994 Fracture propagation during impact in three types of ceramics. Le Journal de Physique IV. 4: C8-653-C8-658.] were replicated computationally to develop further insight about the material behavior under impact loading. Materials. were simulated using the elastic properties and Johnson-Holmquist (JH-2) material models, respectively, for metal and ceramic materials. The stress distribution, damage progression, and failure of the material were accurately predicted by the results. The damage pattern, failure type, and method of failure are all examined as a result of altering projectile velocity. Computational data is utilized to verify the model’s accuracy and offer insight into the ceramic’s reaction to high strain.
Adsorption and diffusion properties of calcium ions at the van der Waals interface of NbSe2-graphene 2D heterostructure for multivalent battery applications: density functional theory calculations
Authors: Linganay Jeri Berlyn D , Putungan Darwin B 
Published: September 2022

Abstract
Multivalent-ion batteries such as calcium-ion batteries show promise as a high-density alternative to lithium-ion batteries which currently dominate the portable electronics market. In this work, the adsorption and diffusion properties of calcium ion at the van der Waals (vdW) interface of the 2D heterostructure formed by vertically stacking NbSe2 monolayer and graphene were investigated via density functional theory (DFT) calculations. Results showed that calcium can be effectively adsorbed on the vdW interface of the 2D heterostructure, with the binding energy of most stable site at −2.77 eV, much higher than most metal ions’ binding on pristine graphene. Thus, the NbSe2-graphene 2D heterostructure reinforced the binding of calcium ions at the interface. It is revealed that due to the random stacking nature of NbSe2 and graphene, a multi-path minimum energy pathways were identified at the van de Waals region, with relatively low diffusion barriers of around 0.20–0.50 eV. These indicate the capabilities of the 2D vdW heterostructure for fast multivalent ionic mobility and charge-discharge rate, while maintaining strong binding at the vdW interface. The results reveal NbSe2-graphene 2D vdW heterostructure’s potential as a promising anode material for multivalent battery applications.