bluuebunny/crossref_metadata_2025_split huggingface dataset:
Optimal decision for two dimensional maintenance service contract involving three parties
Authors: Sa’idah Nur F , Cakravastia Andi , Pasaribu Udjianna S , Iskandar Bermawi P 
Published: October 2019

Abstract
A two-dimensional (i.e. time and use) maintenance service contract involving three parties i.e. manufacturer, agent and consumer are considered in this paper. The contract period by the manufacturer/agent begins since the warranty expires (W) until the lifetime of the equipment expires (L). The use of equipment by consumer is modeled with accelerated failure time (AFT) model. AFT model specifies the limit value of permitted equipment usage (Ul
). The contract time is limited to t = L, but equipment usage may exceed U

l
. High use of equipment will increase consumer revenue. However, the consumer will incur additional costs paid to the manufacturer/agent if the use of equipment exceeds U

l
. Therefore, consumers will seek the optimum value of use (U∗) that maximizes the profits. As with consumer, manufacturer and agent also want to maximize their profits. Decision problems in maintenance service contracts involving the three parties will be resolved consider the interaction of the manufacturer and the agent in carrying out maintenance action. One level optimization used if the manufacturer and agent compete with each other. However, if the manufacturer and agent interact in a cooperation, then optimization of the decision model becomes more difficult and should be done with bilevel optimization.
Probability of failure model in mechanical component because of fatigue
Authors: Mahdiyasa A W , Grahito A 
Published: October 2019

Abstract
Fatigue is one of the most common modes in the failure of a mechanical component. Fatigue experiment shows that the coefficient of variation of fatigue life data is ranging from 30% to 40%. High deviation of the data means the deterministic prediction of fatigue life may not be valid anymore, hence probability-based method to calculate the probability of failure due to fatigue damaged is conducted. The probability of failure prediction methodology is based on damage fraction concept. As the usage cycles increase, the damage fraction increases until it reaches critical damage point where a component fails. Damage fraction is a function of ultimate strength and fatigue limit, in which both are modelled as random variables with normal distribution. The validation is done by variating standard deviation of each random variables. The validation result shows that increasing standard deviation of both ultimate strength and fatigue limit will increase the probability of failure.
The comparative analysis of dependence for three-way contingency table using Burt matrix and Tucker3 in correspondence analysis
Authors: Lestari K E , Pasaribu U S , Indratno S W , Garminia H 
Published: October 2019

Abstract
In this paper, we confined our attention to compare two methods to obtain a graphical depiction of the association (dependency) between three categorical variables. We shall first describe how to recode a three-way contingency table by discussing the Burt matrix form of the data. This method is known as multiple correspondence analysis (MCA). Another method is to preserve a three-way contingency table form using Tucker3, it’s known as a three-way correspondence analysis (CA3). As a case study, we pay attention to analyze the association between race and gender in occupation field that may have contributes to differences in employment opportunity and the continuing increases in women’s educational attainment. The results show that CA3 is more simple in computation and provide the graphical depiction of three-way association simultaneously, while MCA’s plot can’t. Consider to the cumulative inertia on the two-dimensional plot, the percentage inertia of CA3’s plot is better than MCA’s plot.
Uniserial Dimensions of Finitely Generated Primary Modules Over A Discrete Valuation Domain
Authors: Arifin S , Garminia H , Astuti P 
Published: October 2019

Abstract
Recently, the notion of the uniserial dimension of a module over a commutative ring that measures of how far the module deviates from being uniserial was introduced by Nazemian in 2014. In this article we give some methods to determine the uniserial dimension of a finitely generated primary module over a discrete valuation domain. It is well known that finitely generated primary modules over a discrete valuation domain can be decomposed as a direct sum of finite cyclic submodules where the orders of the cyclic generators are called the elementary divisors of the module. We show that the uniserial dimension of the module is a function of the elementary divisors of the module.
SPH simulation of surge waves generated by aerial and submarine landslides
Authors: Iryanto  
Published: October 2019

Abstract
Since the Indian Ocean Tsunami in 2004, there has been extensive research on tsunami modelling. Tsunami catastrophes were generally generated by earthquake fault plate or mass landslide. This article is focused on surge waves induced by mass landslides. Here we restrict to two dimensional study, in which a solid mass was sliding down over a sloping beach. Our approach is numerical simulation using the Smoothed Particle Hydrodynamics (SPH) method. The SPH method is a Lagrangian meshless method, commonly used to describe complex events. Here, the solid mass was modeled as a solid box with triangular-cross section. Its movement follows analytical solution derived by Watts in [1]. The SPH method was used to simulate surge waves induced by two types of landslides; aerial and submarine. Our results were validated using the experimental data of Heinrich [2]. It was shown that the resulting waves induced by aerial and submarine landslides as well as the solid box movement agree quite well with the experimental data. The Root Mean Square Error (RMSE) of free surface deformation in aerial simulation recorded at time t = 0.6, 1.0, 1.5 are 0.02053, 0.02342, 0.02221, respectively and in submarine simulation recorded at time t = 0.5, 1.0, 1.5, 2.0, 2.5, 3.0 are 0.02908, 0.04085, 0.03772, 0.03843, 0.03753, 0.02582, respectively. Whereas motion of the solid box in submarine simulation has better accuracy than in aerial simulation with RMSE 0.00799 and 0.03831, respectively.
Non-linearity analysis for cosmological inflation model with minimal and non-minimal coupling of scalar field from Horndeski theory
Authors: Hikmawan Getbogi , Suroso Agus , Zen Freddy P 
Published: October 2019

Abstract
In this work, we analyze the non-linearity aspect of perturbations generated in early times for cosmological inflation model with minimal and non-minimal couplings of scalar field from Horndeski theory. We study the spectral index of the perturbations and tensor-to-scalar ratio and can be seen as the evidence for inflation for some responsible coupling constant. We get the sign of non-linearity from the spectral index and tensor-to-scalar ratio for this model, and this result can be analyzed further to find non-Gaussianity.
Experimental data analysis of wave attenuation in mangroves
Authors: Abdullah F A R , Husrin S , Bachtiar H 
Published: October 2019

Abstract
The ability of mangrove forest to absorb wave energy was reported in several tsunami events. However, characteristics of mangrove trees that can often withstand the impact of tsunamis, as well as their ability to absorb wave energy, are still an interesting area of research. Based on the experiments conducted in a wave flume at Balai Penelitian dan Pengembangan Pantai, Buleleng, Bali, the effectiveness of mangrove swamps in reducing wave energy was studied. In the wave flume, paddles were put in motion in order to produce monochromatic wave influx. These waves propagate into the domain, then passing through mangrove forest, and further up till the wave was reflected back by the right hard wall boundary. In this article, the Mansard-Funke 3-point method was implemented to decompose the recorded wave signal into incident and reflection waves. Furthermore, the reflection and transmission coefficients were calculated. From sensitivity analysis of experimental data using various water depth and wave period, we found that in a 3 meter length of mangrove, the wave energy was dissipated up to 64%.
The mechanics of macro scale level plastic deformation localization
Authors: Zuev L B , Barannikova S A , Zharmukhambetova A M 
Published: October 2019

Abstract
The major salient features of plastic deformation localization, which are observed at the stage of linear work hardening for deforming metals and alloys, are considered. The dynamic and kinetic characteristics exhibited by the process of localization on transition to failure have been examined. The localization parameters have been related to the electronic properties of metals.
Observation of refraction-contrast effect in images obtained with microfocus bremsstrahlung gamma-rays generated in a narrow internal target of 18 MeV betatron
Authors: Rychkov M M , Kaplin V V , Smolyanskiy V A 
Published: October 2019

Abstract
The first results of experiments demonstrating refraction contrast in magnified (x2.5) images obtained using the Bremsstrahlung gamma radiation of 18 MeV betatron with a narrow tantalum (Ta) target inside are presented. The Ta foil-target with a thickness of 13 urn and a length of 4 mm along the electron beam was mounted in a goniometer inside the chamber of the betatron to guide her along the electron beam. In this case, a linear microfocus source of Bremsstrahlung gamma radiation with vertical and horizontal dimensions of 1.5 and 0.013 mm, respectively, is realized for direct-forward emission of radiation. The obtained magnified images of rectangular steel plates with thicknesses in the region of 15-0.3 mm and lead foils with thickness of 25 urn demonstrated a high resolution of their edges due to the refraction contrast effect, which is realized due to the refraction of microfocus gamma radiation on the surfaces of the lateral faces of the samples.
Geometric anisotropy of velocity of horizontally polarized shear wave in pipe
Authors: Myshkin Yu V , Muravieva O V , Yu Voronchikhin S , Samokrutov A A , Shevaldykin V G 
Published: October 2019

Abstract
A finite element model has been developed to study the propagation velocity of a horizontally polarized shear waves (SH-waves) in pipes of different diameters depending on geometrical parameters, excitation parameters, physical and elastic properties of the pipe material. The results of studies of the geometric anisotropy of the group and phase velocities of the SH-wave for a pipe with a diameter of 1020 mm with a wall thickness of 16 mm are presented. It has been established that in the case of isotropic properties of the pipe material, the velocity on the outer cylindrical surface in the direction of the envelope is 50 m/s more than on the generatrix. The radiation patterns of the SH-wave are given for the studied pipe size with radiation along the generatrix and envelope of the pipe. The results of experimental studies are in satisfactory agreement with the results of modeling.
Advanced features of ECG mapping
Authors: Avdeeva D K , Yuzhakov M M , Ivanov M L , Turushev N V , Maksimov I V , Kodermyatov R E , Mazikov S V , Wenjia Guo , Zimin I A 
Published: October 2019

Abstract
Cardiovascular diseases are the leading cause of death worldwide. A great number of methods have been developed to monitor the state of the heart, each of which has its own advantages and limitations. One of the most promising method is surface mapping. To improve reliability and informativity of this method, researchers of Medical Engineering Laboratory of TPU developed nanosensors with unique metrological characteristics for non-invasive measurement of ECG signals of microvolt and nanovolt levels. The results of previous studies showed that metrological characteristics of the developed nanosensors significantly exceed those of conventional electrodes. Based on this, nanosensors used for surface ECG mapping will enable qualitative improvement of data obtained and diagnostic capabilities of this method.
Wearable nanosensor-based hardware and software complex for dynamic cardiac monitoring
Authors: Ivanov M L , Enshin S I , Avdeeva D K , Yuzhakov M M , Kodermyatov R E , Tsoi E I 
Published: October 2019

Abstract
To date, continuous dynamic monitoring of the cardiovascular system is relevant for improvement of the quality of diagnosis of cardiac diseases. The equipment available for continuous cardiac monitoring operates in the standard frequency range, has a low resolution, and contains filters that limit signals in low and high frequencies. The development of wearable devices and high-resolution methods for dynamic cardiac monitoring to record signals in the range from 0 to 3500 Hz without filtering and averaging is of high priority. In addition, this will allow us to obtain new data on the atria and ventricles of the heart and to detect cardiovascular diseases at an early stage. A wearable hardware and software complex based on nanosensors was developed, and preliminary technical tests of the complex were carried out. An algorithm and a program were developed to detect micropotentials over the entire duration of the ECG signal except for the waves of cardiac pulses and sharp peaks in signal processing. Histograms were built for quantitative evaluation of micropotentials, and the total energy of micropotentials was calculated. Preliminary medical studies were carried out on volunteers.
Digital device for thermophysical measurements by wire probe
Authors: Starostin A , Luk’yanov K , Kotov A , Skripov P , Volosnikov D 
Published: October 2019

Abstract
The paper is devoted to development of a digital device for rapid measurements over a wide temperature range, including superheated states of a substance. The design of the device enables automation of the measurement procedure with a minimum number of preset settings and real-time output of information. Single- and double-pulse heating modes are discussed.
Capturing and tracing an object with the indoor IR positioning system
Authors: Khmelev V L , Zavyalova K V 
Published: October 2019

Abstract
This paper presents a method of “capturing” an object and reconstruction trajectory. It based on digital processing of a stream of optical images and depth maps from an RGB-D camera. This method relies on statistical processing and it possible to capture any objects, not only some type as neuro-algorithms. Reconstructed of trajectory performs in the field of view of RGB-D camera. Such video systems can be used for implementation to a covert scanning scheme of movement person. It will focusing radio wave or optical thermal sensors on the surface of a moving person’s body. The result of the algorithm is an object depth map, which represents the distance to each point of the visible surface of object.
Low-temperature monoclinic layer stacking in atomically thin CrI3 crystals
Authors: Ubrig Nicolas , Wang Zhe , Teyssier Jérémie , Taniguchi Takashi , Watanabe Kenji , Giannini Enrico , Morpurgo Alberto F , Gibertini Marco 
Published: October 2019

Abstract
Chromium triiodide, CrI3, is emerging as a promising magnetic two-dimensional semiconductor where spins are ferromagnetically aligned within a single layer. Potential applications in spintronics arise from an antiferromagnetic ordering between adjacent layers that gives rise to spin filtering and a large magnetoresistance in tunnelling devices. This key feature appears only in thin multilayers and it is not inherited from bulk crystals, where instead neighbouring layers share the same ferromagnetic spin orientation. This discrepancy between bulk and thin samples is unexpected, as magnetic ordering between layers arises from exchange interactions that are local in nature and should not depend strongly on thickness. Here we solve this controversy and show through polarization resolved Raman spectroscopy that thin multilayers do not undergo a structural phase transition typical of bulk crystals. As a consequence, a different stacking pattern is present in thin and bulk samples at the temperatures at which magnetism sets in and, according to previous first-principles simulations, this results in a different interlayer magnetic ordering. Our experimental findings provide evidence for the strong interplay between stacking order and magnetism in CrI3, opening interesting perspectives to design the magnetic state of van der Waals multilayers.
Menger fractal structure with negative refraction and sound tunnelling properties
Authors: Liu Yu , Xu Wenshuai , Chen Meng , Pei Dongliang , Yang Tao , Jiang Heng , Wang Yuren 
Published: October 2019

Abstract
We construct new quasi-three-dimensional fractal acoustic metamaterials based on adoption of the Menger structure, which offers extraordinary parameters such as double-negative properties and a near-zero density. The resulting metamaterials can thus achieve negative refraction, acoustic focusing and sound tunneling. Using the finite element method and the S-parameter retrieval method, the band structures and the effective parameters of these acoustic metamaterials are researched, respectively. The negative refraction property is numerically simulated using a Gaussian beam passing through a double negative prism. A plate lens with a refractive index of n = −1 is constructed to achieve acoustic focusing and the sound tunnelling ability is verified using the near-zero-density metamaterial. The results show that the Menger fractal structures have excellent acoustic properties and are promising for acoustic applications.
Malignant Mesothelioma Among Employees of a Connecticut Factory That Manufactured Friction Materials Using Chrysotile Asbestos: An Update
Authors: Finkelstein Murray M , Meisenkothen Christopher 
Published: October 2019

Abstract
There is an ongoing argument about the potency of chrysotile asbestos to cause malignant mesothelioma. Authors of chrysotile risk assessments have relied upon the results of an epidemiologic study, published in 1984, to state that there were no mesotheliomas found among workers at a Connecticut friction products plant. McDonald reported the first two cases in 1986. In 2010, we reported the work histories and pathologic reports of five individuals from the Connecticut plant who were diagnosed with mesothelioma. Despite this, a review of the health effects of chrysotile published in 2018 continued to state that there were no cases of mesothelioma from this plant. We report here two new cases that were diagnosed after the publication of our previous report, bringing the current total to nine cases. We also discuss the results of previously unpublished air sampling data from the plant. Chrysotile, mainly from Canada, was the only asbestos fiber type used until 1957 when some anthophyllite was added in making paper discs and bands. Beyond this original description of the anthophyllite usage from McDonald, there is a dearth of information about the amount of anthophyllite used in the plant, the frequency of its use, and the specific departments where it was used. For over 30 years in the published literature, this factory has alternatively been described as a ‘chrysotile’ or ‘predominantly chrysotile’ factory. While it is clear that some anthophyllite was used in the factory (in addition to 400 pounds of crocidolite in the laboratory), given the volume, frequency, and processes using chrysotile, it still seems satisfactory to describe this cohort as a predominantly, but not exclusively, chrysotile-exposed cohort.
GPseudoClust: deconvolution of shared pseudo-profiles at single-cell resolution
Authors: Strauss Magdalena E , Kirk Paul D W , Reid John E , Wernisch Lorenz 
Published: October 2019

Abstract

Motivation
Many methods have been developed to cluster genes on the basis of their changes in mRNA expression over time, using bulk RNA-seq or microarray data. However, single-cell data may present a particular challenge for these algorithms, since the temporal ordering of cells is not directly observed. One way to address this is to first use pseudotime methods to order the cells, and then apply clustering techniques for time course data. However, pseudotime estimates are subject to high levels of uncertainty, and failing to account for this uncertainty is liable to lead to erroneous and/or over-confident gene clusters.

Results
The proposed method, GPseudoClust, is a novel approach that jointly infers pseudotemporal ordering and gene clusters, and quantifies the uncertainty in both. GPseudoClust combines a recent method for pseudotime inference with non-parametric Bayesian clustering methods, efficient Markov Chain Monte Carlo sampling and novel subsampling strategies which aid computation. We consider a broad array of simulated and experimental datasets to demonstrate the effectiveness of GPseudoClust in a range of settings.

Availability and implementation
An implementation is available on GitHub: https://github.com/magStra/nonparametricSummaryPSM and https://github.com/magStra/GPseudoClust.

Supplementary information
Supplementary data are available at Bioinformatics online.
Postsurgical residual lung complications following left upper trisegmentectomy
Authors: Koike Yutaro , Hattori Aritoshi , Matsunaga Takeshi , Takamochi Kazuya , Oh Shiaki , Suzuki Kenji 
Published: October 2019

AbstractOBJECTIVESSegmentectomy has become an increasingly popular surgical procedure for small-sized lung lesions. Left upper trisegmentectomy (LUTS) is one of the most common segmentectomies performed because of its relative ease and simplicity; however, limited information is currently available on the specific postoperative complications associated with this procedure.METHODSAmong 2060 surgically resected cases in our institute between 2009 and 2016, 129 (6.2%) underwent LUTS. Postoperative chest X-rays and/or thoracic computed tomography (CT) scans were retrospectively assessed for all cases to assess postsurgical residual lung complications following LUTS. We categorized cases into 4 groups: type A (atelectasis of the lingular segment), type B (lung torsion of the lingular segment), type C (necrosis of the ‘isolated segment’) and type D (haematoma along stapling lines).RESULTSPostsurgical lung complications following LUTS were observed in 17 (13.1%) patients (type A: n = 7, type B: n = 1, type C: n = 4 and type D: n = 5). Three patients (2.3%) required surgical intervention because of type B (n = 1) and type C (n = 2), namely, decreased permeability and remaining ground glass opacities in the residual lung, showing an exacerbated systemic inflammatory response. In contrast, type A and D cases were successfully observed by chest CT without any surgical intervention, and patients recovered within a few months of surgery.CONCLUSIONSWe identified several postoperative residual lung complications following LUTS. Lung torsion or necrosis of the residual segment may require intensive care, including reoperation. Potentially serious complications always need to be ruled out after LUTS when radiological consolidation is detected postoperatively.