cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Estimation of cutting forces with CNC motor current data
Creators: name: Ji, Zeen
Publisher: name: University of British Columbia
Year: 2022

description: The monitoring of machining process, tool damage and machine health are crucial to the part quality while avoiding damage to the machine tool. The cutting force provides important information about the state of the process and cutting tool because it correlates to the physics-based mathematical model of the process. This thesis presents methods for the estimation and prediction of cutting forces from the spindle and feed drive motor current data extracted from CNC. The spindle motor current is correlated to inertia, friction in the bearings, and cutting torque as a disturbance in closed-loop spindle speed controller. The Frequency response function (FRF) of the spindle servo drive is measured via a built-in CNC function. The state-space model of cutting torque disturbance of the spindle drive is modeled. Kalman Filter and Regularized Convolution (RD) are used to compensate the disturbance effects of electrical and mechanical dynamics to widen the bandwidth of cutting torque estimation from spindle motor current. Automatic tuning of Kalman Filter’s covariance and RD’s regularization factor is investigated by checking the Neural Network-based online tuning of Kalman Filter and the off-line L-curve tuning of both estimators. The proposed methods are experimentally illustrated in milling operations. It is shown that Kalman Filter can estimate the cutting forces on-line during machining. RD is used only in off-line estimation due to its computational cost, although it has higher accuracy due to its compensation at a wider frequency range. L-curve only achieves offline tuning due to its computational cost. Neural Network can auto-tune the estimator, but training the network requires high computational efforts. The feed drive motor current commands are used to predict the cutting forces in Cartesian coordinate system. The previous research illustrated that Kalman filter estimates the periodic cutting forces up to about 150 Hz bandwidth, provided that the FRF is not position-dependent, and friction is compensated. This thesis presents the use of average motor current to estimate the average cutting forces after friction compensation. The average forces are used to monitor the variation in cutting force coefficients which is used to calibrate the process simulation models in a digital twin environment.
Moments of a single entry of circular orthogonal ensembles and Weingarten calculus
Creators: name: Matsumoto, Sho
Publisher: name: arXiv
Year: 2011
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: Consider a symmetric unitary random matrix $V=(v_{ij})_{1 \le i,j \le N}$ from a circular orthogonal ensemble. In this paper, we study moments of a single entry $v_{ij}$. For a diagonal entry $v_{ii}$ we give the explicit values of the moments, and for an off-diagonal entry $v_{ij}$ we give leading and subleading terms in the asymptotic expansion with respect to a large matrix size $N$. Our technique is to apply the Weingarten calculus for a Haar-distributed unitary matrix.
description: 17 pages
Cosmological perturbation theory using generalized Einstein de Sitter cosmologies
Creators: name: Joyce, Michael
name: Pohan, Azrul
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The separable analytical solution in standard perturbation theory for an Einstein de Sitter (EdS) universe can be generalized to the wider class of such cosmologies (``generalized EdS'', or gEdS) in which a fraction of the pressure-less fluid does not cluster. We derive the corresponding kernels in both Eulerian perturbation theory (EPT) and Lagrangian perturbation theory, generalizing the canonical EdS expressions to a one-parameter family where the parameter can be taken to be the exponent $α$ of the growing mode linear amplification $D(a) \propto a^α$. For the power spectrum (PS) at one loop in EPT, the contribution additional to standard EdS is given, for each of the `13' and `22' terms, as a function of two infra-red safe integrals. In the second part of the paper we show that the calculation of cosmology-dependent corrections in perturbation theory in standard (e.g. LCDM-like) models can be simplified, and their magnitude and parameter dependence better understood, by relating them to our analytic results for gEdS models. At second order the time dependent kernels are equivalent to the analytic kernels of the gEdS model with $α$ replaced by a single redshift dependent effective growth rate $α_2(z)$. At third order the time evolution can be conveniently parametrized in terms of two additional such effective growth rates. For the PS calculated at one loop order, the correction to the PS relative to the EdS limit can be expressed in terms of just $α_2(z)$, one additional effective growth rate function and the four infra-red safe integrals of the gEdS limit. This is much simplified compared to expressions in the literature that use six or eight red-shift dependent functions and are not explicitly infra-red safe. Using the analytic gEdS expression for the PS with $α=α_2(z)$ gives a good approximation (to $\sim 25 \%$) for the exact result.
description: revised version accepted in Phys. Rev. D., additional detailed comparison with previous works, new summary table, additional references
Low-energy moiré phonons in twisted bilayer van der Waals heterostructures
Creators: name: Lu, Jonathan Z.
name: Zhu, Ziyan
name: Angeli, Mattia
name: Larson, Daniel T.
name: Kaxiras, Efthimios
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We develop a low-energy continuum model for phonons in twisted moiré bilayers, based on a configuration-space approach. In this approach, interatomic force constants are obtained from density functional theory (DFT) calculations of untwisted bilayers with various in-plane shifts. This allows for efficient computation of phonon properties for any small twist angle, while maintaining DFT-level accuracy. Based on this framework, we show how the low-energy phonon modes, including interlayer shearing and layer-breathing modes, vary with the twist angle. As the twist angle decreases, the frequencies of the low-energy modes are reordered and the atomic displacement fields corresponding to phonon eigenmodes break translational symmetry, developing periodicity on the moiré length scale. We demonstrate the capabilities of our model by calculating the phonon properties of three specific structures: bilayer graphene, bilayer molybdenum disulfide (MoS$_2$), and molybdenum diselenide-tungsten diselenide (MoSe$_2$-WSe$_2$).
description: v2: Updated version accepted to Physical Review B; v3: Erratum appended
Additional file 1 of Clinical significance of lactate clearance in patients with cardiogenic shock: results from the RESCUE registry
Creators: name: Park, Ik Hyun
name: Yang, Jeong Hoon
name: Jang, Woo Jin
name: Chun, Woo Jung
name: Oh, Ju Hyeon
name: Park, Yong Hwan
name: Ko, Young-Guk
name: Yu, Cheol Woong
name: Kim, Bum Sung
name: Kim, Hyun-Joong
name: Lee, Hyun Jong
name: Jeong, Jin-Ok
name: Gwon, Hyeon-Cheol
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: Computational Biology

description: Additional file 1: Table S1. Prospective and retrospective enrollments of each Institute. Table S2. 12 month follow-up outcomes. Table S3. Baseline characteristics of survivor and non-survivor.
Spin-Orbit Proximity Effect in Bi/Co Multilayer: The Role of Interface Scattering
Creators: name: Nonnig, Arthur Casa Nova
name: Viegas, Alexandre da Cas
name: da Rosa, Fabiano Mesquita
name: Pureur, Paulo
name: Tumelero, Milton Andre
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The Spin-Orbit Proximity Effect is the raise of Spin-Orbit Coupling at a layer near to the interface with a strong spin-orbit material. It has been seen in several system such as graphene and ferromagnetic layers. The control of the Spin-Orbit Coupling can be a pathway to discover novel and exotic phases in superconductor and semimetallic systems. Here, we study the magnetoelectrical transport, i.e., magnetoresistance and anomalous Hall effect, in Cobalt/Bismuth multilayers looking for traces of spin-orbit proximity effect and evaluate the origin of such effect. Our results point for an increase of Spontaneous Magnetic Anisotropy of Resistivity and Anomalous Hall Resistivity at very low thicknesses of Cobalt. The analysis of the Anomalous Hall Resisitivity indicate that the Bismuth layers change the scattering mechanism of Hall effect to the extrinsic skew-scattering type, indicating that the spin-orbit proximity effect could be related to the elastic scattering of cobalt free carriers by bismuth sites at the interface.
description: 6 pages, 4 figures
NEW PAGES OF A.URINBAEV'S SCIENTIFIC RESEARCH
Creators: name: Burkhanov Ilyoskhon Mukhiddinovich,  Teacher of Fergana Technical University
Publisher: name: Zenodo
Year: 2025

description: The article briefly analyzes issues such as A. Urinbayev's services and editorial research in the project implemented in the field of Uzbek-Japanese Oriental Studies.

Key words: Document, proof, Japanese, editing, source
Using explosive percolation in analysis of real-world networks
Creators: name: Pan, Raj Kumar
name: Kivelä, Mikko
name: Saramäki, Jari
name: Kaski, Kimmo
name: Kertész, János
Publisher: name: arXiv
Year: 2010
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Social and Information Networks (cs.SI)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We apply a variant of the explosive percolation procedure to large real-world networks, and show with finite-size scaling that the university class, ordinary or explosive, of the resulting percolation transition depends on the structural properties of the network as well as the number of unoccupied links considered for comparison in our procedure. We observe that in our social networks, the percolation clusters close to the critical point are related to the community structure. This relationship is further highlighted by applying the procedure to model networks with pre-defined communities.
description: 6 pages, 4 figures. Published version. Elongated to include the results and figures of finite-size scaling and modularity analysis
Properties of the Anomalous States of Positronium
Creators: name: Patterson, Chris W.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: It is shown that there are anomalous bound-state solutions to the two-body Dirac equation for an electron and positron interacting via an electromagnetic potential. These anomalous solutions have quantized coordinates at nuclear distances (fermi) and are orthogonal to the usual atomic positronium bound-states as shown by a simple extension of the Bethe-Salpeter equation. It is shown that the anomalous states have many properties which correspond to those of neutrinos.
Nonlinear effects for island coarsening and stabilization during strained film heteroepitaxy
Creators: name: Gamage, Champika G.
name: Huang, Zhi-Feng
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Nonlinear evolution of three-dimensional strained islands or quantum dots in heteroepitaxial thin films is studied via a continuum elasticity model and the development of a nonlinear dynamic equation governing the film morphological profile. All three regimes of island array evolution are identified and examined, including a film instability regime at early stage, a nonlinear coarsening regime at intermediate times, and the crossover to a saturated asymptotic state, with detailed behavior depending on film-substrate misfit strains but not qualitatively on finite system sizes. The phenomenon of island stabilization and saturation, which corresponds to the formation of steady but non-ordered arrays of strained quantum dots, occurs at later time for smaller misfit strain. It is found to be controlled by the strength of film-substrate wetting interaction which would constrain the valley-to-peak mass transport and hence the growth of island height, and also determined by the effect of elastic interaction between surface islands and the high-order strain energy of individual islands at late evolution stage. The results are compared to previous experimental and theoretical studies on quantum dots coarsening and saturation.
description: 19 pages, 12 figures; submitted to Phys. Rev. B
Radial stability analysis of the continuous pressure gravastar
Creators: name: Horvat, Dubravko
name: Ilijic, Sasa
name: Marunovic, Anja
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Radial stability of the continuous pressure gravastar is studied using the conventional Chandrasekhar method. The equation of state for the static gravastar solutions is derived and Einstein equations for small perturbations around the equilibrium are solved as an eigenvalue problem for radial pulsations. Within the model there exist a set of parameters leading to a stable fundamental mode, thus proving radial stability of the continuous pressure gravastar. It is also shown that the central energy density possesses an extremum in rho_c(R) curve which represents a splitting point between stable and unstable gravastar configurations. As such the rho_c(R) curve for the gravastar mimics the famous M(R) curve for a polytrope. Together with the former axial stability calculations this work completes the stability problem of the continuous pressure gravastar.
description: 17 pages, 5 figures, References corrected, minor changes wrt v1, matches published version
Soft spectator scattering in the nucleon form factors at large $Q^2$ within the SCET approach
Creators: name: Kivel, Nikolai
name: Vanderhaeghen, Marc
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The proton form factors at large momentum transfer are dominated by two contributions which are associated with the hard and soft rescattering respectively. Motivated by a very active experimental form factor program at intermediate values of momentum transfers, $Q^{2}\sim 5-15 \text{GeV}^{2}$, where an understanding in terms of only a hard rescattering mechanism cannot yet be expected, we investigate in this work the soft rescattering contribution using soft collinear effective theory (SCET). Within such description, the form factor is characterized, besides the hard scale $Q^2$, by a semi-hard scale $Q Λ$, which arises due to presence of soft spectators, with virtuality $Λ^2$ ($Λ\sim 0.5$ GeV), such that $Q^{2}\gg QΛ\gg Λ^{2}$. We show that in this case a two-step factorization can be successfully carried out using the SCET approach. In a first step (SCET$_I$), we perform the leading order matching of the QCD electromagnetic current onto the relevant SCET$_I$ operators and perform a resummation of large logarithms using renormalization group equations. We then discuss the further matching onto a SCET$_{II}$ framework, and propose the complete factorization formula for the Dirac form factor, accounting for both hard and soft contributions. We also present a qualitative discussion of the phenomenological consequences of this new framework.
description: 33 pages, 19 figures; typos corrected, text improved. Version to appear in Phys.Rev.D
Direct detection of dark photon dark matter using radio telescopes
Creators: name: An, Haipeng
name: Ge, Shuailiang
name: Guo, Wen-Qing
name: Huang, Xiaoyuan
name: Liu, Jia
name: Lu, Zhiyao
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Dark photons can be the ultralight dark matter candidate, interacting with Standard Model particles via kinetic mixing. We propose to search for ultralight dark photon dark matter (DPDM) through the local absorption at different radio telescopes. The local DPDM can induce harmonic oscillations of electrons inside the antenna of radio telescopes. It leads to a monochromatic radio signal and can be recorded by telescope receivers. Using the observation data from the FAST telescope, the upper limit on the kinetic mixing can already reach $10^{-12}$ for DPDM oscillation frequencies at $1-1.5$ GHz, which is stronger than the cosmic microwave background constraint by about one order of magnitude. Furthermore, large-scale interferometric arrays like LOFAR and SKA1 telescopes can achieve extraordinary sensitivities for direct DPDM search from 10 MHz to 10 GHz.
description: 5 pages, 3 figures + appendix. Match the accepted version (PRL)
Additional file 2 of Clinical significance of lactate clearance in patients with cardiogenic shock: results from the RESCUE registry
Creators: name: Park, Ik Hyun
name: Yang, Jeong Hoon
name: Jang, Woo Jin
name: Chun, Woo Jung
name: Oh, Ju Hyeon
name: Park, Yong Hwan
name: Ko, Young-Guk
name: Yu, Cheol Woong
name: Kim, Bum Sung
name: Kim, Hyun-Joong
name: Lee, Hyun Jong
name: Jeong, Jin-Ok
name: Gwon, Hyeon-Cheol
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: Computational Biology

description: Additional file 2: Figure S1. Predictors of in-hospital mortality.
Silent adhan : exploring the muslim call to prayer in metro Vancouver
Creators: name: Suleman, Zoolfikar K. B.
Publisher: name: University of British Columbia
Year: 2022

description: The adhan is the Muslim call to prayer which is recited five times a day to call the faithful to pray. In contrast to many Muslim majority countries in the world where the adhan is audible and a part of the public soundscape, the adhan is not publicly recited regularly in Canada. Due to Covid-19, limited public recitations of the adhan have been allowed since 2020, during the Ramadan period of fasting. In this thesis I explore the absence of the public recitation of the adhan in Metro Vancouver. The adhan and its public recitation has not attracted specific scholarly attention in Canada. It is a lacuna in the scholarship surrounding Islam in Canada. This thesis centers the adhan and its public recitation through an interdisciplinary methodology using research-creation (an original short film – Silent Azaan which forms a part of this thesis) and an analysis of an online archive of documented public adhan recitations in Canada in 2020 hosted at the www.30masjids.ca web platform. During the Ramadan fast in the Spring of 2020, the convergence of Covid-19 and a ban on indoor public gatherings resulted in Muslims seeking approval for limited recitations of the adhan in some cities in Canada. These 2020 recitations across Canada provide some insights into how further inclusion of the adhan into the public soundscape might be received by municipal governments and various publics. I argue that multiculturalism narratives provide an unsatisfactory framework for inclusion of the adhan in the public soundscape. These narratives serve to mask Canada’s roots as a white settler colonial nation, but multiculturalism may persist as a “most acceptable”, “least controversial” paradigm around which Muslims, governments and various publics can coalesce for further future inclusion of the adhan in the Canadian public soundscape. This thesis examines the complexities involved and lays out a foundation for future debates on the topic, something which was lacking when I began.
Learning Markovian Dynamics with Spectral Maps
Creators: name: Rydzewski, Jakub
name: Gökdemir, Tuğçe
Publisher: name: arXiv
Year: 2023
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The long-time behavior of many complex molecular systems is often governed by slow relaxation dynamics that can be described by a few reaction coordinates referred to as collective variables (CVs). However, identifying CVs hidden in a high-dimensional configuration space poses a fundamental challenge in chemical physics. To address this problem, we expand on a recently introduced deep-learning technique called spectral map [Rydzewski, J. Phys. Chem. Lett. 2023, 14, 22, 5216-5220]. Spectral map learns CVs by maximizing a spectral gap between slow and fast eigenvalues of a Markov transition matrix describing anisotropic diffusion. An introduced modification in the learning algorithm allows spectral map to represent multiscale free-energy landscapes. Through a Markov state model analysis, we validate that spectral map learns slow CVs related to the dominant relaxation timescales and discerns between long-lived metastable states.
description: Accepted version
Additional file 3 of Clinical significance of lactate clearance in patients with cardiogenic shock: results from the RESCUE registry
Creators: name: Park, Ik Hyun
name: Yang, Jeong Hoon
name: Jang, Woo Jin
name: Chun, Woo Jung
name: Oh, Ju Hyeon
name: Park, Yong Hwan
name: Ko, Young-Guk
name: Yu, Cheol Woong
name: Kim, Bum Sung
name: Kim, Hyun-Joong
name: Lee, Hyun Jong
name: Jeong, Jin-Ok
name: Gwon, Hyeon-Cheol
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: Computational Biology

description: Additional file 3: Figure S2. ROC curves of lactate clearance to predict in-hospital mortality according to the application of mechanical circulatory support.
Stasheff polytopes and the coordinate ring of the cluster X-variety of type A_n
Creators: name: Shen, Linhui
Publisher: name: arXiv
Year: 2011
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: We define Stasheff polytopes in the space of tropical points of cluster A-varieties. We study the supports of products of elements of canonical bases for cluster X-varieties. We prove that, for the cluster X-variety of type A_n, such supports are Stasheff polytopes.
description: 30 pages, 8 figures
title: Solid Flux Measurement in Chemical Looping Gasification Based on Solid Samples
Creators: name: Marx, Falko
name: Dieringer, Paul
name: Ströhle, Jochen
name: Epple, Bernd
Publisher: name: UNSPECIFIED
Year: 2023

description: Chemical looping gasification is a novel dual fluidized bed technology for the conversion of solid feedstock to a nitrogen-free syngas without the need of pure oxygen. Recently, efforts have been made to advance chemical looping gasification towards autothermal operation. For autothermal operation, the solids flux between the two reactors becomes important, as it transports the required sensible heat in addition to the oxygen required for the process. As no reliable method exists to accurately measure the solids flux under process conditions without extensive calibration under such conditions, a method has been devised utilizing the process specifics of chemical looping gasification to allow for calibration of online measurement equipment without opening the reactor system. This method utilizes solid samples from coupling elements to calculate the solids flux with an overall uncertainty of +/- 15%.
A universal crossover in quantum circuits governed by a proximate classical error correction transition
Creators: name: Lyons, Anasuya
name: Choi, Soonwon
name: Altman, Ehud
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We formulate a semi-classical circuit model to clarify the role of quantum entanglement in the recently discovered encoding phase transitions in quantum circuits with measurements. As a starting point we define a random circuit model with nearest neighbor classical gates interrupted by erasure errors. In analogy with the quantum setting, this system undergoes a purification transition at a critical error rate above which the classical information entropy in the output state vanishes. We show that this phase transition is in the directed percolation universality class, consistent with the fact that having zero entropy is an absorbing state of the dynamics; this classical circuit cannot generate entropy. Adding an arbitrarily small density of quantum gates in the presence of errors eliminates the transition by destroying the absorbing state: the quantum gates generate internal entanglement, which can be effectively converted to classical entropy by the errors. We describe the universal properties of this instability in an effective model of the semi-classical circuit. Our model highlights the crucial differences between information dynamics in classical and quantum circuits.
description: Submitted to PRB; 8 pages, 6 figures; supplementary info in v1 merged into main text. (v1: 6+5 pages, 4+3 figures; extended supplementary info)
Characterization and Greedy Learning of Interventional Markov Equivalence Classes of Directed Acyclic Graphs
Creators: name: Hauser, Alain
name: Bühlmann, Peter
Publisher: name: arXiv
Year: 2011
Subjects: subject: Methodology (stat.ME)
subject: Discrete Mathematics (cs.DM)
subject: Statistics Theory (math.ST)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: The investigation of directed acyclic graphs (DAGs) encoding the same Markov property, that is the same conditional independence relations of multivariate observational distributions, has a long tradition; many algorithms exist for model selection and structure learning in Markov equivalence classes. In this paper, we extend the notion of Markov equivalence of DAGs to the case of interventional distributions arising from multiple intervention experiments. We show that under reasonable assumptions on the intervention experiments, interventional Markov equivalence defines a finer partitioning of DAGs than observational Markov equivalence and hence improves the identifiability of causal models. We give a graph theoretic criterion for two DAGs being Markov equivalent under interventions and show that each interventional Markov equivalence class can, analogously to the observational case, be uniquely represented by a chain graph called interventional essential graph (also known as CPDAG in the observational case). These are key insights for deriving a generalization of the Greedy Equivalence Search algorithm aimed at structure learning from interventional data. This new algorithm is evaluated in a simulation study.
Mengulas Mega Proyek Infrastruktur Jalan yang Mencapai Skala Luar Biasa di Indonesia
Creators: name: kontraktor indo
Publisher: name: Zenodo
Year: 2023

description: Indonesia telah meluncurkan serangkaian proyek infrastruktur jalan yang monumental sebagai bagian dari visi besar untuk memajukan konektivitas dan pertumbuhan ekonomi. Proyek-proyek ini, yang dikenal sebagai mega proyek, mengusung ambisi untuk mengubah lanskap infrastruktur jalan di negara ini.
Effects of Strong Gravitational Lensing on Millimeter-Wave Galaxy Number Counts
Creators: name: Hezaveh, Yashar D.
name: Holder, Gilbert P.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study the effects of strong lensing on the observed number counts of mm sources using a ray tracing simulation and two number count models of unlensed sources. We employ a quantitative treatment of maximum attainable magnification factor depending on the physical size of the sources, also accounting for effects of lens halo ellipticity. We calculate predicted number counts and redshift distributions of mm galaxies including the effects of strong lensing and compare with the recent source count measurements of the South Pole Telescope (SPT). The predictions have large uncertainties, especially the details of the mass distribution in lens galaxies and the finite extent of sources, but the SPT observations are in good agreement with predictions. The sources detected by SPT are predicted to largely consist of strongly lensed galaxies at z>2. The typical magnifications of these sources strongly depends on both the assumed unlensed source counts and the flux of the observed sources.
Critical loop models are exactly solvable
Creators: name: Nivesvivat, Rongvoram
name: Ribault, Sylvain
name: Jacobsen, Jesper Lykke
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In two-dimensional critical loop models, including the $O(n)$ and Potts models, the spectrum is exactly known, as are a few structure constants or ratios thereof. Using numerical conformal bootstrap methods, we study $235$ of the simplest 4-point structure constants. For each structure constant, we find an analytic expression as a product of two factors: 1) a universal function of conformal dimensions, built from Barnes' double Gamma function, and 2) a polynomial function of loop weights, whose degree obeys a simple upper bound. We conjecture that all structure constants are of this form.
 For a few 4-point functions, we build corresponding observables in a lattice loop model. From numerical lattice results, we extract amplitude ratios that depend neither on the lattice size nor on the lattice coupling. These ratios agree with the corresponding ratios of 4-point structure constants.
description: 68 pages, v3: corrected Table (2.68), added comments on rank 3 Jordan cells
Wide-angle effects in multi-tracer power spectra with Doppler corrections
Creators: name: Paul, Pritha
name: Clarkson, Chris
name: Maartens, Roy
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We examine the computation of wide-angle corrections to the galaxy power spectrum including redshift-space distortions and relativistic Doppler corrections, and also including multiple tracers with differing clustering, magnification and evolution biases. We show that the inclusion of the relativistic Doppler contribution, as well as radial derivative terms, are crucial for a consistent wide-angle expansion for large-scale surveys, both in the single and multi-tracer cases. We also give for the first time the wide-angle cross-power spectrum associated with the Doppler magnification-galaxy cross correlation, which has been shown to be a new way to test general relativity. In the full-sky power spectrum, the wide-angle expansion allows integrals over products of spherical Bessel functions to be computed analytically as distributional functions, which are then relatively simple to integrate over. We give for the first time a complete discussion and new derivation of the finite part of the divergent integrals of the form $\int_{0}^{\infty} \mathrm{d} r r^{n} j_{\ell}(k r) j_{\ell^{\prime}}(q r)$, which are necessary to compute the wide-angle corrections when a general window function is included. This facilitates a novel method for integrating a general analytic function against a pair of spherical Bessel functions.
description: 41 pages and 2 figures. V3 has substantial improvements and new results. V4 is to appear in JCAP
Growth-dependent Interlayer Chiral Exchange and Field-free Switching
Creators: name: Huang, Yu-Hao
name: Huang, Chao-Chung
name: Liao, Wei-Bang
name: Chen, Tian-Yue
name: Pai, Chi-Feng
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Interfacial Dzyaloshinskii-Moriya interaction (DMI) has long been observed in normal metal/ferromagnetic multilayers, enabling the formation of chiral domain walls, skyrmions and other 2D antisymmetric spin textures confined within a single ferromagnetic layer, while more recent works on interlayer DMI reveal new pathways in realizing novel chiral 3D spin textures between two separate layers.Here, we report on interlayer DMI between two orthogonally magnetized ferromagnetic layers (CoFeB/Co) mediated by a Pt layer, and confirm the chiral nature of the observed effective field of up to 37 Oe through asymmetric hysteresis loops under in-plane field.We highlight the importance of growth-induced in-plane symmetry breaking, resulting in a sizable interlayer DMI and a universal characteristic vector through wedge deposition of the samples.We further perform deterministic current-driven magnetization switching in the perpendicularly magnetized Co layer utilizing solely the effective field from the interlayer DMI.These results demonstrate the potential of interlayer DMI in facilitating deterministic field-free switching in spin memory applications.
description: 22 pages, 3 figures
Additional file 1 of Effect of manual therapy with exercise in patients with chronic cervical radiculopathy: a randomized clinical trial
Creators: name: Alshami, Ali M.
name: Bamhair, Duaa A.
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1. Consent form.
title: General Rank Transmit Beamforming Methods for Multicasting Networks
Creators: name: Taleb, Dima
Publisher: name: UNSPECIFIED
Year: 2023

description: In this thesis, various general rank beamforming techniques, namely Space-time trellis codes (STTC)s, orthogonal space-time codes (OSTBCs), real-valued OSTBCs and STBCs based beamforming, are presented for the scenario of single group multicasting networks. Several novel STBCs based beamforming methods are provided to increase the degrees of freedom, thus serving more users compared to rank two beamforming design; nevertheless, maintaining the optimality. General rank beamforming designs enhance the overall system performance in terms of reliability, capacity and transmit power.
Additional file 1 of Supporting routine cognitive reactivity assessment during the perinatal period: psychometric testing of the Chinese version of the Leiden Index of Depression Sensitivity
Creators: name: Fu, Yanqing
name: Lin, Yu-an
name: Zheng, Jiansheng
name: Hong, Huilan
name: Huang, Songqing
name: Li, Jiang
name: Huang, Feifei
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Mental Health

description: Additional file 1. Illustration of item characteristic curves, and test information function for all items in the third trimester. Illustration of item characteristic curves, and test information function for all items at 6-week post-partum.
NLO electroweak corrections to doubly-polarized $W^+W^-$ production at the LHC
Creators: name: Dao, Thi Nhung
name: Le, Duc Ninh
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present new results of next-to-leading order (NLO) electroweak corrections to doubly-polarized cross sections of $W^+W^-$ production at the LHC. The calculation is performed for the leptonic final state of $e^+μ_e μ^- \barν_μ$ using the double-pole approximation in the diboson center-of-mass frame. NLO QCD corrections and subleading contributions from the $gg$, $b\bar{b}$, $γγ$ induced processes are taken into account in the numerical results. We found that NLO EW corrections are small for angular distributions but can reach tens of percent for transverse momentum distributions at high energies, e.g. reaching $-40\%$ at $p_{T,e}\approx 300$ GeV. In these high $p_T$ regions, EW corrections are largest for the doubly-transverse mode.
description: 18 pages, 1 table, 5 figures; matches published version
Telecoupled urban demand from West African cities causes social-ecological land use transformation in Saharan oases
Creators: name: Fastner, Kira
name: Djibrilla, Salouhou
name: Nguyen, Thanh Thi
name: Bürkert, Andreas
Publisher: name: Universität Kassel
Year: 2023
Subjects: subject: 630
subject: Afrika
subject: Nordafrika
subject: Landwirtschaft
subject: Oase
subject: Beeinflussung
subject: Gesellschaft
subject: Lebensmittelnachfrage
subject: Stadt

description: Gefördert durch den Publikationsfonds der Universität Kassel
description: Funding by University of Kassel (Germany) and by the German Academic Exchange Service (DAAD) within the Pro-RUWA program of African Excellence (www.uni-kassel.de/go/Pro- RUWA) is greatly acknowledged.
The peculiar velocity field: constraining the tilt of the Universe
Creators: name: Ma, Yin-Zhe
name: Gordon, Christopher
name: Feldman, Hume A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A large bulk flow, which is in tension with the Lambda Cold Dark Matter ($Λ$CDM) cosmological model, has been observed. In this paper, we provide a physically plausible explanation of this bulk flow, based on the assumption that some fraction of the observed dipole in the cosmic microwave background is due to an intrinsic fluctuation, so that the subtraction of the observed dipole leads to a mismatch between the cosmic microwave background (CMB) defined rest frame and the matter rest frame. We investigate a model that takes into account the relative velocity (hereafter the tilted velocity) between the two frames, and develop a Bayesian statistic to explore the likelihood of this tilted velocity. By studying various independent peculiar velocity catalogs, we find that: (1) the magnitude of the tilted velocity $u$ is around 400 km/s, and its direction is close to what is found from previous bulk flow analyses; for most catalogs analysed, u=0 is excluded at about the $2.5 σ$ level;(2) constraints on the magnitude of the tilted velocity can result in constraints on the duration of inflation, due to the fact that inflation can neither be too long (no dipole effect) nor too short (very large dipole effect); (3) Under the assumption of a super-horizon isocurvature fluctuation, the constraints on the tilted velocity require that inflation lasts at least 6 e-folds longer (at the 95% confidence interval) than that required to solve the horizon problem. This opens a new window for testing inflation and models of the early Universe from observations of large scale structure.
description: 7 pages, 7 figures, match the published version in Phys.Rev.D
A Unified Algorithmic Framework for Distributed Adaptive Signal and Feature Fusion Problems -- Part I: Algorithm Derivation
Creators: name: Musluoglu, Cem Ates
name: Bertrand, Alexander
Publisher: name: arXiv
Year: 2022
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this paper, we describe a general algorithmic framework for solving linear signal or feature fusion optimization problems in a distributed setting, for example in a wireless sensor network (WSN). These problems require linearly combining the observed signals (or features thereof) collected at the various sensor nodes to satisfy a pre-defined optimization criterion. The framework covers several classical spatial filtering problems, including minimum variance beamformers, multi-channel Wiener filters, principal component analysis, canonical correlation analysis, (generalized) eigenvalue problems, etc. The proposed distributed adaptive signal fusion (DASF) algorithm is an iterative method that solves these types of problems by allowing each node to share a linearly compressed version of the local sensor signal observations with its neighbors to reduce the energy and bandwidth requirements of the network. We first discuss the case of fully-connected networks and then extend the analysis to more general network topologies. The general DASF algorithm is shown to have several existing distributed algorithms from the literature as a special case, while at the same time allowing to solve new distributed problems as well with guaranteed convergence and optimality. This paper focuses on the algorithm derivation of the DASF framework along with simulations demonstrating its performance. A technical analysis along with convergence conditions and proofs are provided in a companion paper.
Evaluation of Postural Muscle Synergies during a Complex Motor Task in a Virtual Reality Environment
Creators: name: Ai, Xupeng
name: Santamaria, Victor
name: Omofuma, Isirame Babajide
name: Agrawal, Sunil K.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Robotics (cs.RO)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: In this study, we investigate how the central nervous system (CNS) organizes postural control synergies when individuals perform a complex catch-and-throw task in a virtual reality (VR) environment. A Robotic Upright Stand Trainer (RobUST) platform, including surface electromyography and kinematics, was used to investigate how the CNS fine-tunes postural synergies with perturbative and assist-as-needed force fields. A control group without assistive forces was recruited to elucidate the effect of force fields on motor performance and postural synergy organization after the perturbation and during the VR reaching task. We found that the application of assistive forces significantly improved reaching and balance control. The group receiving assistive forces displayed four postural control synergies characterized by higher complexity (i.e., greater number of muscles involved). However, control subjects displayed eight synergies that recruited less number of muscles. In conclusion, assistive forces reduce the number of postural synergies while increasing the complexity of muscle module composition.
description: 13 pages, 6 figures
A Unified Algorithmic Framework for Distributed Adaptive Signal and Feature Fusion Problems -- Part II: Convergence Properties
Creators: name: Musluoglu, Cem Ates
name: Hovine, Charles
name: Bertrand, Alexander
Publisher: name: arXiv
Year: 2022
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This paper studies the convergence conditions and properties of the distributed adaptive signal fusion (DASF) algorithm, the framework itself having been introduced in a `Part I' companion paper. The DASF algorithm can be used to solve linear signal and feature fusion optimization problems in a distributed fashion, and is in particular well-suited for solving spatial filtering optimization problems encountered in wireless sensor networks. The convergence conditions and results are provided along with rigorous proofs and analyses, as well as various example problems to which they apply. Additionally, we describe procedures that can be added to the DASF algorithm to ensure convergence in specific cases where some of the technical convergence conditions are not satisfied.
Type IIB Holographic Superfluid Flows
Creators: name: Arean, Daniel
name: Bertolini, Matteo
name: Krishnan, Chethan
name: Prochazka, Tomas
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct fully backreacted holographic superfluid flow solutions in a five-dimensional theory that arises as a consistent truncation of low energy type IIB string theory. We construct a black hole with scalar and vector hair in this theory, and study the phase diagram. As expected, the superfluid phase ceases to exist for high enough superfluid velocity, but we show that the phase transition between normal and superfluid phases is always second order. We also analyze the zero temperature limit of these solutions. Interestingly, we find evidence that the emergent IR conformal symmetry of the zero-temperature domain wall is broken at high enough velocity.
description: v3: Published version. Figures 5 and 6 corrected. 24 pages, 7 figures
Observable r, Gravitino Dark Matter, and Non-thermal Leptogenesis in No-Scale Supergravity
Creators: name: Ahmed, Waqas
name: Moosa, Muhammad
name: Munir, Shoaib
name: Zubair, Umer
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We analyse the shifted hybrid inflation in a no-scale SU(5) model with supersymmetry, which naturally circumvents the monopole problem. The no-scale framework is derivable as the effective field theory of the supersymmetric (SUSY) compactifications of string theory, and it yields a flat potential with no anti-de Sitter vacua, resolving the $η$ problem. The model predicts a scalar spectral tilt $n_s$ compatible with the most recent measurements by the Planck satellite, while also accommodating observable values of the tensor-to-scalar ratio $r$ ($\sim 0.0015$), potentially measurable by the near-future experiments. Moreover, the proton decay lifetime in the presence of the dimension-5 operators is found to lie above the current limit imposed by the Super-Kamiokande experiment. A realistic scenario of reheating and non-thermal leptogenesis is invoked, wherein the reheating temperature $T_r$ lies in the $\{2 \times 10^6 \lesssim T_r \lesssim 2 \times 10^9\}$ GeV range, and at the same time the gravitino makes a viable dark matter (DM) candidate.
description: 25 pages,6 figures
Additional file 2 of Effect of manual therapy with exercise in patients with chronic cervical radiculopathy: a randomized clinical trial
Creators: name: Alshami, Ali M.
name: Bamhair, Duaa A.
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 2. Interventions.