bluuebunny/crossref_metadata_2025_split huggingface dataset:
Generative framework for dimensionality reduction of large scale network of nonlinear dynamical systems driven by external input
Authors: Dutta Shrey , Roy Dipanjan , Banerjee Arpan 
Published: June 2019

Abstract
Several studies have proposed constraints under which a low-dimensional representation can be derived from large-scale real-world networks exhibiting complex nonlinear dynamics. Typically, these representations are formulated under certain assumptions, such as when solutions converge to attractor states using linear stability analysis or using projections of large-scale dynamical data into a set of lower dimensional modes that are selected heuristically. Here, we propose a generative framework for selection of lower dimensional modes onto which the entire network dynamics can be projected based on the symmetry of the input distribution for a large-scale network driven by external inputs, thus relaxing the heuristic selection of modes made in the earlier reduction approaches. The proposed mode reduction technique is tractable analytically and applied to different kinds of real-world large-scale network scenarios with nodes comprising of (a) Van der Pol oscillators (b) Hindmarsh–Rose neurons. These two demonstrations elucidate how order parameter is conserved at original and reduced descriptions thus validating our proposition.
Two-color XUV+NIR femtosecond photoionization of neon in the near-threshold region
Authors: Düsterer S , Hartmann G , Bomme C , Boll R , Costello J T , Erk B , De Fanis A , Ilchen M , Johnsson P , Kelly T J , Manschwetus B , Mazza T , Meyer M , Passow C , Rompotis D , Varvarezos L , Kazansky A K , Kabachnik N M 
Published: June 2019

Abstract
Results of angle-resolved electron spectroscopy of near-threshold photoionization of Ne atoms by combined femtosecond extreme ultraviolet and near infrared fields are presented. The dressed-electron spectra show an energetic distribution into so-called sidebands, being separated by the photon energy of the dressing laser. Surprisingly, for the low kinetic energy (few eV) sidebands, the photoelectron energy varies as a function of the emission angle. Such behavior has not yet been observed in sideband creation and has not been predicted in commonly used theoretical descriptions such as strong field approximation and soft photon approach. Describing the photoionization with a time-dependent Schrödinger equation allows a qualitative description of the observed effect, as well as the prediction of fine structure in the sideband distribution.
Josephson junction cavity systems as cousins of the quantum optical micromaser
Authors: Dambach Simon , Armour Andrew D , Kubala Björn , Ankerhold Joachim 
Published: June 2019

Abstract
We explore the similarities and differences between simple theoretical models developed to describe the quantum optical micromaser and Josephson-photonics devices. Whilst the micromaser has long been recognised as an important model for the dynamics of open quantum systems far from equilibrium, so-called Josephson-photonics devices are a recently developed form of superconducting quantum circuit in which the quantum transport of charges through a voltage-biased Josephson junction drives the production of photons in a microwave resonator.
VieSched++: A New VLBI Scheduling Software for Geodesy and Astrometry
Authors: Schartner Matthias , Böhm Johannes 
Published: June 2019

We present a new Very Long Baseline Interferometry (VLBI) scheduling software called VieSched++, which is a stand-alone tool of the Vienna VLBI and Satellite Software (VieVS). The scheduler is written in C++ and aims to be flexible and easy to use, with a modern graphical user interface while creating high-quality schedules. In this work, the general design concepts of the scheduling software are discussed and the major scheduling algorithms are explained. Additionally, deep insight into the optimization criteria is given. First tests demonstrate that VieSched++ is able to generate schedules of highest quality. The software can be downloaded from https://github.com/TUW-VieVS.
Probing the CP violating Hγγ coupling using interferometry *
Authors: Wan Xia , Wang You-Kai 
Published: June 2019

Abstract
The diphoton invariant mass distribution from the interference between

and

is almost antisymmetric around the Higgs mass

. We propose a new observable

, the ratio of the sign-reversed integral around

(e.g.

) and the cross-section of the Higgs signal, to quantify this effect. We study

both in the Standard Model (SM) and new physics with various CP violating

couplings.

in SM could reach a value of 10%, while for CP violating

coupling

could range from 10% to −10%, which could probably be detected in the HL-LHC experiments.

with both CP violating

and

couplings is also studied, and its range of values is found to be slightly larger.
Chiral criticality and glue dynamics *
Authors: Fu Wei-Jie 
Published: June 2019

Abstract
The chiral order-parameter σ field and its higher-order cumulants of fluctuations are calculated within the functional renormalization group approach by adopting the local potential approximation in this study. The influence of glue dynamics on fluctuations of the σ field is investigated, and we find that they are weakly affected. This is in sharp contrast to the baryon number fluctuations, which are sensitive to the glue dynamics and involve information on the color confinement. The implications of our calculated results are discussed from the viewpoint of the theoretical and experimental efforts in the search for the QCD critical end point.
Squeezed back-to-back correlations of K+K−in d + Au collisions at =200 GeV and Au + Au collisions at = 62.4 GeV *
Authors: Zhang Yong , Yang Jing , Wu Weihua 
Published: June 2019

AbstractWe investigate the squeezed back-to-back correlations (BBC) of, caused by the mass modification of particles in the dense medium formed in d + Au collisions atGeV and Au + Au collisions atGeV. Considering that some kaons may not be affected by the medium, we further study the BBC functions ofwhen parts of all kaons have a mass-shift. Our results indicate that the BBC functions ofcan be observed when only ~10% of all kaons have a mass-shift in d + Au collisions atGeV and the peripheral collisions of Au + Au atGeV. Since the BBC function is caused by the mass-shift due to the interactions between the particle and the medium, the successful detection of the BBC function indirectly marks that the dense medium has formed in these collision systems. We suggest the experimental measurement of the BBC function ofin d + Au collisions atGeV and peripheral collisions of Au + Au atGeV.
Restoration of pseudo-spin symmetry in N = 32 and N = 34 isotonesdescribed by relativistic Hartree-Fock theory *
Authors: Li Zheng-Zheng , Chang Shi-Yao , Zhao Qiang , Long Wen-Hui , Niu Yi-Fei 
Published: June 2019

Abstract
The restoration of pseudo-spin symmetry (PSS) along the

and N =

isotonic chains and the physics behind are studied by applying the relativistic Hartree-Fock theory with the effective Lagrangian PKA1. Taking the proton pseudo-spin partners

as candidates, the systematic restoration of PSS along both isotonic chains is found from sulphur (S) to nickel (Ni), while an obvious PSS violation from silicon (Si) to sulphur is discovered near the drip lines. The effects of the tensor force components are investigated, introduced naturally by the Fock terms, which can only partially interpret the systematics from calcium to nickel, whereas they fail for the overall trends. Further analysis following the Schrödinger-like equation of the lower component of Dirac spinor shows that contributions from the Hartree terms dominate the overall systematics of the PSS restoration. Such effects can be self-consistently interpreted by the evolution of the proton central density profiles along both isotonic chains. In particular, the PSS violation is found to tightly relate to the dramatic changes from the bubble-like density profiles in silicon to the central-bumped ones in sulphur.
Expected energy spectrum of cosmic ray protons and helium below 4 PeV measured by LHAASO *
Authors: Yin L. Q. , Zhang S. S. , Cao Z. , Bi B. Y. , Wang C. , Liu J. L. , Ma L. L. , Yang M. J. , Suomijärvi Tiina , Zhang Y. , You Z. Y. , Zong Z. Z. 
Published: June 2019

Abstract
The Large High Altitude Air Shower Observatory (LHAASO) is a composite cosmic ray observatory consisting of three detector arrays: kilometer square array (KM2A), which includes the electromagnetic detector array and muon detector array, water Cherenkov detector array (WCDA) and wide field-of-view Cherenkov telescope array (WFCTA). One of the main scientific objectives of LHAASO is to precisely measure the cosmic rays energy spectrum of individual components from

eV to

eV. The hybrid observation will be employed by the LHAASO experiment, in which the lateral and longitudinal distributions of extensive air shower can be observed simultaneously. Thus, many kinds of parameters can be used for primary nuclei identification. In this paper, high purity cosmic ray simulation samples of the light nuclei component are obtained using multi-variable analysis. The apertures of 1/4 LHAASO array for pure proton and mixed proton and helium (H&He) samples are

and

, respectively. Prospect of obtaining proton and H&He spectra from 100 TeV to 4 PeV is discussed.
Lateral distribution of EAS muons measured for the primary cosmic ray energy around 100 TeV *
Authors: Feng You-Liang , Zhang Yi , Chen Tian-Lu , Guo Yi-Qing , Hu Hong-Bo , Liu Cheng , Xin Guang-Guang , Yao Yu-Hua , Wang Zhen , DANZENGLUOBU 罗布 , Gao Qi , Liu Mao-Yuan , Zhao Shi-Ping , Qiao Bing-Qiang , Guo Ying-Ying , Cai Hui 
Published: June 2019

Abstract
The muonic component of the extensive air showers (EAS) is of great importance for the astroparticle physics. It carries the information about the properties of primary cosmic ray (CR) particles, such as their mass, and electromagnetic and hadronic nature. It provides a sensitive test for the hadronic interaction models, which are inevitable for describing the cascade shower development of cosmic rays in EAS experiments. The YangBaJing Hybrid Array (YBJ-HA) experiment has been in operation since the end of 2016. Surface detectors are used for the measurements of primary energy, angular direction and core position of a shower event, while underground muon detectors are used for measuring the density of muons at various locations. Using the data obtained by the YBJ-HA experiment, this work reports the first measurement of the lateral muon distribution for the primary cosmic ray energy in the 100 TeV region. The punch-through effect is evaluated via MC simulation.
Primordial perturbations and non-gaussianities in Hořava-Lifshitz gravity *
Authors: Gao Xian 
Published: June 2019

Abstract
We investigate primordial perturbations and non-gaussianities in the Hořava-Lifshitz theory of gravitation. In the UV limit, the scalar perturbation in the Hořava theory is naturally scale-invariant, ignoring the details of the expansion of the Universe. One may thus relax the exponential inflation and the slow-roll conditions for the inflaton field. As a result, it is possible that the primordial non-gaussianities, which are " slow-roll suppressed” in the standard scenarios, become large. We calculate the non-gaussianities from the bispectrum of the perturbation and find that the equilateral-type non-gaussianity is of the order of unity, while the local-type non-gaussianity remains small, as in the usual single-field slow-roll inflation model in general relativity. Our result is a new constraint on Hořava-Lifshitz gravity.
2D electrical resistivity imaging based on backpropagation artificial neural network
Authors: Setyawan A , Fikri M S , Suseno J E , Najib  
Published: June 2019

Abstract
Dipole-dipole is one configuration design survey in electrical resistivity method which is common to interpreted shallow subsurface base on resistivity parameter, and the model can be developed using inversion formula. Otherwise, we developed some model without empirical mathematic formula; it is called Artificial Neural Network (ANN). ANN is a system which has a pattern like the human brain process to solve the complex problems. The research aims to develop a neural network algorithm using Matlab and compare the result 2D model resistivity between ANN and inversion by Res2Dinv (existing procedure) software. The research was done in Taman Rumah Kita (TRK) where located in Faculty of Science and Mathematics, Diponegoro University. A cylinder was buried in the center of TRK and getting the best architecture of the network and the value of Mean Square Error (MSE) of the output network. The backpropagation artificial neural network was built from many layers such as an input layer, hidden layer, and output layer and developed by Matlab programs. The Network train was tested using synthetic data and field data. The synthetic data was made with forwarding modeling method by Res2Mod software, and the field data was obtained by doing the measurement at the measurement site using dipole-dipole resistivity method. The comparing result models are present the best architecture obtained one input layer with three input units, three hidden layers with each layer has 100 neurons and one output layer that obtained by trial and error process. MSE obtained respectively in observation lines are 0.0210 at Line 1, and 0.0345 at Line 2.
Effect of mercerized surface treated natural fiber to the tensile properties of green composite
Authors: Hidayah E , Musyarofah L , Puspita D , Sujito  
Published: June 2019

Abstract
This research deals with fabrication and tensile properties characterization of green composite (GC). In this research, GC was made from ramie, coir and bagasse fiber as reinforcement with polylactic acid (PLA) biodegradable resin. To improve the adhesion between fiber and PLA also increasing tensile properties of GC, mercerization or NaOH fiber treatment is used. This is aimed to observe the effect of NaOH fiber surface treatment on the tensile properties of GC. Ramie, bagasse, and coir fiber were chopped (2-3mm) and immersed in 5 wt% NaOH for 2, 3 and 4 hours respectively. The GC with ten wt% fiber loading was prepared by pouring the fiber in a melted PLA at 170°C and stirring them for a homogenizing process. Then pour it in a metallic mold, the pressure at 10MPa was applied for 10 minutes. Six types of GC were obtained, such as R/PLA, C/PLA, B/PLA, RC / PLA, RB/PLA, and RCB/PLA, both of untreated and NaOH treated fiber. The tensile test was done to observe the effect of NaOH fiber surface treatment on the tensile properties of GC. The entire result showed that the tensile properties of GC were affected by fiber surface treatment and meaningless existence. The highest tensile strength and modulus of elasticity were obtained from GC with untreated R/PLA, 56.88±1.17 MPa and 363.37±11.44 MPa respectively.
Reservoir characterization by petrophysical analysis and core data validation, a case study of the “x” field prospect zone
Authors: Oetomo M A , Harmoko U , Yuliyanto G 
Published: June 2019

Abstract
Petrophysical analysis has been performed by evaluating log data that have been validated with core data using Geoframe 4.2 software. Using secondary log and core data which are located at depth of 1414 - 3820 ft, the research purpose is identifying reservoir characteristics of "X" field prospect zone. Sand A-Zone has permeability of 9.38% error curve and porosity curve error of 0.78%. In Sand B Zone permeability error of 52.32% curve and porosity error of 7.13%. In Sand C Zone permeability error of 198.8% curve and porosity error of 2.85%. In Sand D Zone permeability error of 61.54% curve and porosity error of 29.87%. In Sand E Zone permeability error of 54.73% curve and porosity error of 4.52%. There is no good correlation and error values that tend to be large because the lithology in Sand B and Sand C Zone has a tight range of lithology, so the reading of logging tool gives a fairly high error, especially in permeability data which still shows a decrease in error value after validated with core data. Quantitative analysis obtained by petrophysical parameter range from six zones porosity of 26 %, permeability of 2661 mD, and water saturation of 0.37 frac.
Synthesis and characterization of silicone rubber composite silica as the x-ray shielding
Authors: Astuti S Y , Sutanto H , Jaya G W , Hidayanto E , Arifin Z 
Published: June 2019

Abstract
Radiodiagnostics are diagnostics utilizing X-rays or radiochemical tracers. At the time of exposure using radiation, there may be radiation exposure that will affect the radiation workers. The purpose of this research is to develop materials that can be used as radiation shielding while maintaining radiodiagnostic examination results. This material is made by combining silicone rubber (SR) and silica composites materials through a simple process with a sample size (12 x 12 x 0.5 cm3). Samples were made in 2 variations using silicone rubber and silicone rubber-6% silica composite. Both samples were then tested using a mobile X-ray plane with tube voltage variations of 46 kV, 50 kV, 60 kV, 70kV, 81kV, 90kV, and 102kV, respectively. After being tested, the results of the X-ray transmission percentage for SR sheet at the minimum and maximum voltage are 60% and 75%, respectively. For SR-6% Silica sheet X-ray transmission percentage at the minimum and maximum stresses of 58% and 74%, respectively. This research results showed that the use of silica on SR has potential as a composite material that can provide increased absorption of X-ray radiation.
An investigation of a CT noise reduction using a modified of wiener filtering-edge detection
Authors: Anam C , Fujibuchi T , Toyoda T , Sato N , Haryanto F , Widita R , Arif I , Dougherty G 
Published: June 2019

Abstract
The aims of this study were to investigate the noise reduction in a CT image using a modified Wiener filtering-edge detection method. We modified the noise reduction algorithm of a combination of the Wiener filter and edge detection by addition of a dilation stage after edge detection. We then evaluated kernel size of the Wiener filter, threshold values in the edge detection, and size of structuring elements in the dilation process. Images of adult anthropomorphic and self-built wire phantoms were acquired by the new 4-row multislice CT Toshiba Alexion™. The images of the anthropomorphic phantom were used for a visual evaluation, while the images of the wire-phantom were used to obtain the spatial resolution and noise of the images. A Wiener filter-edge detection filter coupled with dilation, potentially reduced more CT noise. We found that the spatial resolution and noise of the filtered images were influenced by the size of the Wiener filter kernel, threshold of edge detection, and size of structuring element.
Calculation application of patient’s dose on fluoroscopy x-ray machine
Authors: Arifin Z , Hidayanto E , Suhardi  
Published: June 2019

Abstract
Dose recording in patients is not well implemented and so far has not been supported by the dose panel on the X-ray machine. Therefore, it is necessary to develop a dose-record application capable of storing dose data to support the patient’s radiation safety. It also refers to the regulation of diagnostic radiology service standards, medical records, and hospital accreditation standards regulated by the Ministry of Health. This study aimed to design an application of patient dosage record for abdominal examination with a Fluoroscopy X-ray machine. The design of dosage record application is done by exposing to radiation output and voltage (kV) variation of X-ray irradiation on 63-94.8 kV, current strength on 0.9-3.1 mA, and phantom thickness on 5-21 cm. The data is processed and multiplied by backscatter factor (BSF) is 1.35 to get entrance surface dose (ESD). ESD formula that can be included in the program script in the XAMPP software application. The dosage record application design can be used to record patient data with the calculated formulation obtained.
Multicolor Symmetrical Fractal Pattern Generator
Authors: Widodo C E 
Published: June 2019

Abstract
A fractal is a geometric figure that combines the several characteristics among others: its parts have the same form as the whole, fragmented, and formation by iteration. The concept of fractals has been spread over all fields of sciences, technology, and art. The properties of fractal sets are necessary to be investigated and favorable for the practical applications. This paper aims to provide an algorithm for creating multicolor symmetrical fractal pattern generator. Generator algorithm consists of base, iteration, coloration, and duplication. To help the reader better understand the algorithm, we will present some script using Matlab. We describe a mathematically based algorithm that can fill a spatial region with a sequence of randomly placed which may be transformed copies of one motif or several motifs. This flexible algorithm can be used to produce a variety of aesthetically pleasing fractal patterns, of which we show some examples. We hope that the existence of fractals can show that mathematics is not a dry and flat subject, but it is a beautiful subject and can produce works that have a high degree of art and intellectual value.
Determination of bed rock depth using joint geoelectric and HVSR methods
Authors: Yuliyanto G , Harmoko U , Widada S 
Published: June 2019

Abstract
To obtain hard rock (bed rock) as the pedestal of the toll road, it had been measured of the thickness of layers of soft or weathered rock that covers the bed rock. Direct measurements carried out by drilling will require a long time and great cost. Therefore, indirect measurements were made by geophysical estimation using resistivity method and were cross-checked with the HVSR method. To get the resistivity data in the research area, in this survey was conducted geoelectric sounding acquisition as much as 16 points whereas data acquisition by using microtremor measurements performed at nine measurement points. The result of the analysis of geoelectric data with HVSR data gives slightly different layer thickness value. The survey area consists of two layers of soil with soft rock layers one were suspected to be sandy silt, and silty sand whereas the soft layer 2 was sandy gravel silt, each with varying thickness. The bed rock in this area is breccia that applies as half space with the thickness is not detected by the measurement. The apparent resistivity curves were obtained from geo-electrical resistivity data have similar curves with the HVSR ones. From the inversion, the result of the bedrock depth from geo-electric resistivity compared to HVSR ones give difference slightly.
Synthesis of titanium dioxide-silica-silver composites using a base catalyst as active antibacterial compound coated on the cotton fabric
Authors: Lestari Shinta Dian , Prasetya Nor Basid Adiwibawa , Ngadiwiyana  , Ismiyarto  , Sarjono Purbowatiningrum Ria 
Published: June 2019

Abstract
Titanium dioxide is a photocatalyst material that can inhibit the growth of microorganisms, bacteria, and viruses. Titanium dioxide can be modified into TiO2-SiO2-Ag composites to improve the ability to inhibit the growth of microorganisms due to increased adsorption capability and bactericidal properties. Composites of TiO2-SiO2-Ag were synthesized using tetraethylorthosilicate (TEOS) precursor in the presence of NH4OH base catalyst followed by the addition of TiCL and AgNO3 precursors. Coating of composite material on the cotton fabric was carried out by eight times dying. The coated cotton fabric was tested for antibacterial ability using UV-vis spectrophotometry method and agar disc diffusion method. FTIR data showed a typical functional group of the materials composing the composite. Analysis of XRD and UV-DRS showed that the composite material was amorphous with a bandgap of 2.43 eV. Antibacterial test results showed that the TiO2-SiO2-Ag composite material was able to inhibit the growth of Escherichia coli gram-negative bacteria in liquid media and solid media by 83.76% and 99%, respectively.