cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Cosmic rays and random magnetic traps
Creators: name: Tharakkal, Devika
name: Snodin, Andrew P.
name: Sarson, Graeme R.
name: Shukurov, Anvar
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The spatial distribution of cosmic ray (CR) particles in the interstellar medium (ISM) is of major importance in radio astronomy, where its knowledge is essential for the interpretation of observations, and in theoretical astrophysics, where CR contribute to the structure and dynamics of the ISM. Local inhomogeneities in interstellar magnetic field strength and structure can affect the local diffusivity and ensemble dynamics of the cosmic ray particles. Magnetic traps (regions between magnetic mirrors located on the same magnetic line) can lead to especially strong and persistent features in the CR spatial distribution. Using test particle simulations, we study the spatial distribution of an ensemble of CR particles (both protons and electrons) in various magnetic field configurations, from an idealized axisymmetric trap to those that emerge in intermittent (dynamo-generated) random magnetic fields. We demonstrate that both the inhomogeneity in the CR sources and the energy losses by the CR particles can lead to persistent local inhomogeneities in the CR distribution and that the protons and electrons have different spatial distributions. Our results can have profound implications for the interpretation of the synchrotron emission from astronomical objects, and in particular its random fluctuations.
description: 19 pages, 18 figures
Utilization of a group method of service for public assistance recipients
Creators: name: Cripps, Annette Ruth
Publisher: name: University of Calgary
Year: 1971
Subjects: subject: HV 110 E3 C73 1971
subject: Public welfare - Alberta - Edmonton
subject: Social service
subject: Community organization
subject: Glengarry Center, Edmonton

description: Bibliography: p. 110-114.
The Statistical methods of Pixel-Based Image Fusion Techniques
Creators: name: Al-Wassai, Firouz Abdullah
name: Kalyankar, N. V.
name: Al-Zaky, Ali A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: There are many image fusion methods that can be used to produce high-resolution mutlispectral images from a high-resolution panchromatic (PAN) image and low-resolution multispectral (MS) of remote sensed images. This paper attempts to undertake the study of image fusion techniques with different Statistical techniques for image fusion as Local Mean Matching (LMM), Local Mean and Variance Matching (LMVM), Regression variable substitution (RVS), Local Correlation Modeling (LCM) and they are compared with one another so as to choose the best technique, that can be applied on multi-resolution satellite images. This paper also devotes to concentrate on the analytical techniques for evaluating the quality of image fusion (F) by using various methods including Standard Deviation (SD), Entropy(En), Correlation Coefficient (CC), Signal-to Noise Ratio (SNR), Normalization Root Mean Square Error (NRMSE) and Deviation Index (DI) to estimate the quality and degree of information improvement of a fused image quantitatively.
description: Keywords: Data Fusion, Resolution Enhancement, Statistical fusion, Correlation Modeling, Matching, pixel based fusion
Intrinsic spin Hall torque in a moire Chern magnet
Creators: name: Tschirhart, C. L.
name: Redekop, Evgeny
name: Li, Lizhong
name: Li, Tingxin
name: Jiang, Shengwei
name: Arp, T.
name: Sheekey, O.
name: Taniguchi, Takashi
name: Watanabe, Kenji
name: Mak, Kin Fai
name: Shan, Jie
name: Young, A. F.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In spin torque magnetic memories, electrically actuated spin currents are used to switch a magnetic bit. Typically, these require a multilayer geometry including both a free ferromagnetic layer and a second layer providing spin injection. For example, spin may be injected by a nonmagnetic layer exhibiting a large spin Hall effect, a phenomenon known as spin-orbit torque. Here, we demonstrate a spin-orbit torque magnetic bit in a single two-dimensional system with intrinsic magnetism and strong Berry curvature. We study AB-stacked MoTe2/WSe2, which hosts a magnetic Chern insulator at a carrier density of one hole per moire superlattice site. We observe hysteretic switching of the resistivity as a function of applied current. Magnetic imaging using a superconducting quantum interference device reveals that current switches correspond to reversals of individual magnetic domains. The real space pattern of domain reversals aligns precisely with spin accumulation measured near the high-Berry curvature Hubbard band edges. This suggests that intrinsic spin- or valley-Hall torques drive the observed current-driven magnetic switching in both MoTe2/WSe2 and other moire materials. The switching current density of 10^3 Amps per square centimeter is significantly less than reported in other platforms paving the way for efficient control of magnetic order.
Design of thin-film photonic metamaterial Lüneburg lens using analytical approach
Creators: name: Gao, Hanhong
name: Zhang, Baile
name: Johnson, Steven G.
name: Barbastathis, George
Publisher: name: arXiv
Year: 2011
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We design an all-dielectric Lüneburg lens as an adiabatic space-variant lattice explicitly accounting for finite film thickness. We describe an all-analytical approach to compensate for the finite height of subwavelength dielectric structures in the pass-band regime. This method calculates the effective refractive index of the infinite-height lattice from effective medium theory, then embeds a medium of the same effective index into a slab waveguide of finite height and uses the waveguide dispersion diagram to calculate a new effective index. The results are compared with the conventional numerical treatment - a direct band diagram calculation, using a modified three-dimensional lattice with the superstrate and substrate included in the cell geometry. We show that the analytical results are in good agreement with the numerical ones, and the performance of the thin-film Lüneburg lens is quite different than the estimates obtained assuming infinite height.
description: 11 pages, 8 figures, uses opex3.sty
Activate places of culture to promote socially responsible research and innovation
Creators: name: Fanzini, Daniele
name: Achille, Cristiana
name: Tommasi, Cinzia
Publisher: name: TECHNE - Journal of Technology for Architecture and Environment
Year: 2021

description: The research addresses the theme of the enhancement of two devotional cultural sites according to the principles of Responsible Research Innovation (RRI). The methodology provides for the involvement of various designers and local stakeholders, and is supported by digital technologies, both to speed up communication between those within the design process and to facilitate envisioning possible solutions by non-professional individuals. The aim is to enable new educational uses of the cultural heritage of the two historical-devotional sites, which are the focus of enhancement in a circular cognitive process based on collective construction of opportunities.
description: TECHNE - Journal of Technology for Architecture and Environment, TECHNE 21 (2021): Eteronomia dell'Architettura
Efficient Incremental Breadth-Depth XML Event Mining
Creators: name: Salem, Rashed
name: Darmont, Jérôme
name: Boussaïd, Omar
Publisher: name: arXiv
Year: 2011
Subjects: subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: Many applications log a large amount of events continuously. Extracting interesting knowledge from logged events is an emerging active research area in data mining. In this context, we propose an approach for mining frequent events and association rules from logged events in XML format. This approach is composed of two-main phases: I) constructing a novel tree structure called Frequency XML-based Tree (FXT), which contains the frequency of events to be mined; II) querying the constructed FXT using XQuery to discover frequent itemsets and association rules. The FXT is constructed with a single-pass over logged data. We implement the proposed algorithm and study various performance issues. The performance study shows that the algorithm is efficient, for both constructing the FXT and discovering association rules.
Complementarity in quantum walks
Creators: name: Grudka, Andrzej
name: Kurzynski, Pawel
name: Polak, Tomasz P.
name: Sajna, Adam S.
name: Wojcik, Jan
name: Wojcik, Antoni
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study discrete-time quantum walks on $d$-cycles with a position and coin-dependent phase-shift. Such a model simulates a dynamics of a quantum particle moving on a ring with an artificial gauge field. In our case the amplitude of the phase-shift is governed by a single discrete parameter $q$. We solve the model analytically and observe that for prime $d$ there exists a strong complementarity property between the eigenvectors of two quantum walk evolution operators that act in the $2d$-dimensional Hilbert space. Namely, if $d$ is prime the corresponding eigenvectors of the evolution operators obey $|\langle v_q|v'_{q'} \rangle| \leq 1/\sqrt{d}$ for $q\neq q'$ and for all $|v_q\rangle$ and $|v'_{q'}\rangle$. We also discuss dynamical consequences of this complementarity. Finally, we show that the complementarity is still present in the continuous version of this model, which corresponds to a one-dimensional Dirac particle.
description: 5+7 pages, 2 figures, comments welcome
Measurement of the coupling between applied stress and magnetism in a manganite thin film
Creators: name: Singh, Surendra
name: Fitzsimmons, M. R.
name: Lookman, T.
name: Jeen, H.
name: Biswas, A.
name: Roldan, M. A.
name: Varela, M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We measured the magnetization depth profile of a (La1-xPrx)1-yCayMnO3 (x = 0.60\pm0.04, y = 0.20\pm0.03) film as a function of applied bending stress using polarized neutron reflectometry. From these measurements we obtained a coupling coefficient relating strain to the depth dependent magnetization. We found application of compressive (tensile) bending stress along the magnetic easy axis increases (decreases) the magnetization of the film.
An Overview of Advances in Signal Processing Techniques for Classical and Quantum Wideband Synthetic Apertures
Creators: name: Vouras, Peter
name: Mishra, Kumar Vijay
name: Artusio-Glimpse, Alexandra
name: Pinilla, Samuel
name: Xenaki, Angeliki
name: Griffith, David W.
name: Egiazarian, Karen
Publisher: name: arXiv
Year: 2022
Subjects: subject: Signal Processing (eess.SP)
subject: Quantum Physics (quant-ph)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Physical sciences

description: Rapid developments in synthetic aperture (SA) systems, which generate a larger aperture with greater angular resolution than is inherently possible from the physical dimensions of a single sensor alone, are leading to novel research avenues in several signal processing applications. The SAs may either use a mechanical positioner to move an antenna through space or deploy a distributed network of sensors. With the advent of new hardware technologies, the SAs tend to be denser nowadays. The recent opening of higher frequency bands has led to wide SA bandwidths. In general, new techniques and setups are required to harness the potential of wide SAs in space and bandwidth. Herein, we provide a brief overview of emerging signal processing trends in such spatially and spectrally wideband SA systems. This guide is intended to aid newcomers in navigating the most critical issues in SA analysis and further supports the development of new theories in the field. In particular, we cover the theoretical framework and practical underpinnings of wideband SA radar, channel sounding, sonar, radiometry, and optical applications. Apart from the classical SA applications, we also discuss the quantum electric-field-sensing probes in SAs that are currently undergoing active research but remain at nascent stages of development.
description: 48 pages, 65 figures, 3 tables
Design and technologies, between sciences and new humanism. Innovation in the education and role of designers
Creators: name: Paris, Spartaco
Publisher: name: TECHNE - Journal of Technology for Architecture and Environment
Year: 2021

description: Starting from a critical interpretation of some authors involved in the debate raised by the call, this paper hypothesizes practicable conditions for a circular, non-pyramidal integration of technological disciplines into design processes, presenting some experimental investigations in support of these concepts. The paper aims to investigate, in particular, how the role of digital technologies, the key players in a full-blown transformation of thought, impacts the designer’s education models and has a tendency to redefine both the boundaries between disciplines and the very role of the designer. Some significant international experiences in the field of the education of designers show that a humanistic approach to controlling technologies and to “ubiquitous” cooperation among strains of knowledge presents a possible scenario of profound rethinking of the role of the technological designer within a framework of shared fragility of the planet’s economic models.
description: TECHNE - Journal of Technology for Architecture and Environment, TECHNE 21 (2021): Eteronomia dell'Architettura
MagneticKP: A package for quickly constructing $\boldsymbol{k}\cdot\boldsymbol{p}$ models of magnetic and non-magnetic crystals
Creators: name: Zhang, Zeying
name: Yu, Zhi-Ming
name: Liu, Gui-Bin
name: Li, Zhenye
name: Yang, Shengyuan A.
name: Yao, Yugui
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We propose an efficient algorithm to construct $\boldsymbol{k}\cdot \boldsymbol{p}$ effective Hamiltonians, which is much faster than the previously proposed algorithms. This algorithm is implemented in MagneticKP package. The package applies to both single-valued (spinless) and double-valued (spinful) cases, and it works for both magnetic and nonmagnetic systems. By interfacing with SpaceGroupIrep or MSGCorep packages, it can directly output the $\boldsymbol{k}\cdot \boldsymbol{p}$ Hamiltonian around arbitrary momentum and expanded to arbitrary order in $k$.
description: 10 pages, 2 figures, 1 table
Jet rotation investigated in the near-ultraviolet with HST/STIS
Creators: name: Coffey, Deirdre
name: Rigliaco, Elisabetta
name: Bacciotti, Francesca
name: Ray, Thomas P.
name: Eislöffel, Jochen
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present results of the second phase of our near-ultraviolet investigation into protostellar jet rotation using HST/STIS. We obtain long-slit spectra at the base of five T Tauri jets to determine if there is a difference in radial velocity between the jet borders which may be interpreted as a rotation signature. These observations are extremely challenging and push the limits of current instrumentation, but have the potential to provide long-awaited observational support for the magneto-centrifugal mechanism of jet launching in which jets remove angular momentum from protostellar systems. We successfully detect all five jet targets (from RW Aur, HN Tau, DP Tau and CW Tau) in several near-ultraviolet emission lines, including the strong Mg II doublet. However, only RW Aur's bipolar jet presents sufficient signal-to-noise for analysis. The approaching jet lobe shows a difference of 10 km/s in a direction which agrees with the disk rotation sense, but is opposite to previously published optical measurements for the receding jet. The near-ultraviolet difference is not found six months later, nor is it found in the fainter receding jet. Overall, in the case of RW Aur, differences are not consistent with a simple jet rotation interpretation. Indeed, given the renowned complexity and variability of this system, it now seems likely that any rotation signature is confused by other influences, with the inevitable conclusion that RW Aur is not suited to a jet rotation study.
description: 13 pages, 21 figures, Accepted by The Astrophysical Journal
Distillation of News Flow intoAnalysis of Stock Reactions
Creators: name: Zhang, Junni L.
name: Härdle, Wolfgang Karl
name: Chen, Cathy Y.
name: Bommes, Elisabeth
Publisher: name: Humboldt-Universität zu Berlin, Wirtschaftswissenschaftliche Fakultät
Year: 2015
Subjects: subject: Bootstrap
subject: Investor Sentiment
subject: Attention Analysis
subject: Sector Analysis
subject: Volatility Simulation
subject: Trading Volume
subject: Returns
subject: 310 Sammlungen allgemeiner Statistiken
subject: 330 Wirtschaft

description: News carry information of market moves. The gargantuan plethora of opinions, facts and tweets on financial business owners the opportunity to test and analyze the influence of such text sources on future directions of stocks. It also creates though the necessity to distill via statistical technology the informative elements of this prodigious and indeed colossal data source. Using mixed text sources from professional platforms, blog fora and stock message boards we distill via different lexica sentiment variables. These are employed for an analysis of stock reactions: volatility, volume and returns. An increased (negative) sentiment will in uence volatility as well as volume. This influuence is contingent on the lexical projection and different across GICS sectors. Based on review articles on 100 S&P 500 constituents for the period of October 20, 2009 to October 13, 2014 we project into BL, MPQA, LM lexica and use the distilled sentiment variables to forecast individual stock indicators in a panel context. Exploiting different lexical projections, and using different stock reaction indicators we aim at answering the following research questions: (i) Are the lexica consistent in their analytic ability to produce stock reaction indicators, including volatility, detrended log trading volume and return? (ii) To which degree is there an asymmetric response given the sentiment scales (positive v.s. negative)? (iii) Are the news of high attention firms diffusing faster and result in more timely and effcient stock reaction? (iv) Is there a sector specific reaction from the distilled sentiment measures? We find there is significant incremental information in the distilled news ow. The three lexica though are not consistent in their analytic ability. Based on confidence bands an asymmetric, attention-specific and sector-specific response of stock reactions is diagnosed.
Charge Ordering and Ferroelectricity in Half-doped Manganites
Creators: name: Yamauchi, Kunihiko
name: Picozzi, Silvia
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: By means of density-functional simulations for half-doped manganites, such as pseudocubic Pr0.5Ca0.5MnO3 and bilayer PrCa2Mn2O7, we discuss the occurrence of ferroelectricity and we explore its crucial relation to the crystal structure and to peculiar charge/spin/orbital ordering effects. In pseudocubic Pr0.5Ca0.5MnO3, ferroelectricity is induced in the Zener polaron type structure, where Mn ions are dimerized. In marked contrast, in bilayer PrCa2Mn2O7, it is the displacements of apical oxygens bonded to either Mn3+ or Mn4+ ions that play a key role in the rising of ferroelectricity. Importantly, local dipoles due to apical oxygens are also intimately linked to charge and orbital ordering patterns in MnO2 planes, which in turn contribute to polarization. Finally, an important outcome of our work consists in proposing Born effective charges as a valid mean to quantify charge disproportionation effects, in terms of anisotropy and size of electronic clouds around Mn ions.
description: 5 pages, 2 figures, submitted for publication
Forward-backward systems for expected utility maximization
Creators: name: Horst, Ulrich
name: Hu, Ying
name: Imkeller, Peter
name: Réveillac, Anthony
name: Zhang, Jianing
Publisher: name: Humboldt-Universität zu Berlin, Wirtschaftswissenschaftliche Fakultät
Year: 2011
Subjects: subject: 330 Wirtschaft

description: In this paper we deal with the utility maximization problem with a general utility function. We derive a new approach in which we reduce the utility maximization problem with general utility to the study of a fully-coupled Forward-Backward Stochastic Differential Equation (FBSDE).
A radical bioecological paradigm for design technologies with a transdisciplinary approach
Creators: name: Nava, Consuelo
name: Melis, Alessandro
Publisher: name: TECHNE - Journal of Technology for Architecture and Environment
Year: 2021

description: This essay attempts to critically examine the proposed topic of “promotion of the architectural project as an interdisciplinary synthesis tool”, entrusting its possible cognitive trajectories to design experiments, based on transdisciplinary frontier research. Hoping to overcome a literature already referred to on the themes of the design of architecture and cities, a more radical discussion opens up concerning its “organic” forms and “ecological” structures. This debate draws on the themes of evolutionary biology in a key of eco-technological innovation, as a contribution to transformative resilience and circularity of resources, defining “a creative project” for architectures and the city, which are enabled to know the future.
description: TECHNE - Journal of Technology for Architecture and Environment, TECHNE 21 (2021): Eteronomia dell'Architettura
Morse functions and contact convex surfaces
Creators: name: Cardona, Robert
name: Oms, Cédric
Publisher: name: arXiv
Year: 2022
Subjects: subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics

description: Let $f$ be a Morse function on a closed surface $Σ$ such that zero is a regular value and such that $f$ admits neither positive minima nor negative maxima. In this expository note, we show that $Σ\times \mathbb{R}$ admits an $\mathbb{R}$-invariant contact form $α=fdt+β$ whose characteristic foliation along the zero section is (negative) weakly gradient-like with respect to $f$. The proof is self-contained and gives explicit constructions of any $\mathbb{R}$-invariant contact structure in $Σ\times \mathbb{R}$, up to isotopy. As an application, we give an alternative geometric proof of the homotopy classification of $\mathbb{R}$-invariant contact structures in terms of their dividing set.
description: 15 pages, 5 figures. Expository note
A novel canonical dual computational approach for prion AGAAAAGA amyloid fibril molecular modeling
Creators: name: Zhang, Jiapu
name: Gao, David Y.
name: Yearwood, Johh
Publisher: name: arXiv
Year: 2011
Subjects: subject: Biomolecules (q-bio.BM)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Mathematical Physics (math-ph)
subject: Optimization and Control (math.OC)
subject: FOS: Biological sciences
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Many experimental studies have shown that the prion AGAAAAGA palindrome hydrophobic region (113-120) has amyloid fibril forming properties and plays an important role in prion diseases. However, due to the unstable, noncrystalline and insoluble nature of the amyloid fibril, to date structural information on AGAAAAGA region (113-120) has been very limited. This region falls just within the N-terminal unstructured region PrP (1-123) of prion proteins. Traditional X-ray crystallography and nuclear magnetic resonance (NMR) spectroscopy experimental methods cannot be used to get its structural information. Under this background, this paper introduces a novel approach of the canonical dual theory to address the 3D atomic-resolution structure of prion AGAAAAGA amyloid fibrils. The novel and powerful canonical dual computational approach introduced in this paper is for the molecular modeling of prion AGAAAAGA amyloid fibrils, and that the optimal atomic-resolution structures of prion AGAAAAGA amyloid fibils presented in this paper are useful for the drive to find treatments for prion diseases in the field of medicinal chemistry. Overall, this paper presents an important method and provides useful information for treatments of prion diseases. Overall, this paper could be of interest to the general readership of Theoretical Biology.
Representations of solutions of the wave equation based on relativistic wavelets
Creators: name: Perel, Maria V.
name: Gorodnitskiy, Evgeny A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: A representation of solutions of the wave equation with two spatial coordinates in terms of localized elementary ones is presented. Elementary solutions are constructed from four solutions with the help of transformations of the affine Poincaré group, i.e., with the help of translations, dilations in space and time and Lorentz transformations. The representation can be interpreted in terms of the initial-boundary value problem for the wave equation in a half-plane. It gives the solution as an integral representation of two types of solutions: propagating localized solutions running away from the boundary under different angles and packet-like surface waves running along the boundary and exponentially decreasing away from the boundary. Properties of elementary solutions are discussed. A numerical investigation of coefficients of the decomposition is carried out. An example of the field created by sources moving along a line with different speeds is considered, and the dependence of coefficients on speeds of sources is discussed.
description: submitted to J. Phys. A: Math. Theor., 20 pages, 6 figures
Comparing near surface measurements of wind speed and direction over the Indian Ocean from Lidar and Scatterometer, and results from predictive study using the wind shear power law and the surface roughness log law to model upper level winds from near surface measurements.
Creators: name: McCarty, Brandi J.
Publisher: name: U.S. Department of Commerce, National Oceanic and Atmospheric Administration, Office of Oceanic and Atmospheric Research, Earth System Research Laboratory, Chemical Sciences Division.
Year: 2016
Subjects: subject: Winds--Speed--Estimates--Indian Ocean--Mathematical models.

description: This study compares the equivalent neutral wind estimates of two space based active microwave sensors called scatterometers, the ASCAT (Advanced SCATterometer) and OSCAT (Oceansat-2 scatterometer), to the average wind profiles as estimated from continuous conical scans of a Doppler lidar deployed on a research vessel for a 3 month period in the Indian Ocean. Statistical analysis of matched pairs between the OSCAT derived wind speeds and the lidar measured wind speeds show the OSCAT is positively biased by 0.5 m s⁻¹. While the comparison between the pairs of lidar and ASCAT winds show no bias. The effect of atmospheric stability in estimating winds from surface roughness as compared to the Doppler wind measurements was investigated using a calculated stability indicator, Richardson number. Using the OSCAT and lidar matched pairs, analyses shows a statistical significant positive scatterometer bias (p-value < 0.01) of 0.83 m s⁻¹ in wind speeds associated with unstable atmospheric conditions, or those with Richardson numbers greater than -0.4. The vertical profiles of wind speed from the lidar not only capture winds near the surface, but also at heights up to 2 km. Data at between 50 m and 200 m is increasingly relevant as wind turbines for energy generation climb to these heights to harness more constant non-turbulent wind flow. Methods to model or extrapolate surface wind to upper levels exist. A wind shear power law or a surface roughness log law is commonly used by the wind energy industry. Using knowledge of atmospheric and surface conditions to constrain the shear exponent of the power law and surface roughness length of the log law, near surface wind speed estimates were extrapolated using these two models and compared to the lidar measured estimates at wind turbine heights. Biases between the modeled and lidar estimated winds found at rotor plane heights are presented. Using the log law and a surface roughness parameter of 0.01 to predict wind speeds at various heights and in 3 atmospheric stability scenarios, biases between the model and measurements range from 2.26 – 0.16 m s⁻¹.
The architect as a “semantic agent” in the dialogue between new practices and digital technologies
Creators: name: Galluccio, Giuliano
Publisher: name: TECHNE - Journal of Technology for Architecture and Environment
Year: 2021

description: The paper aims to offer insights into the new conditions the designer is called upon to face in the wake of the technical, cultural and cognitive transformations the spread of ICT is triggering in the construction industry. Digitization, in particular, might place architects in a position of intermediation between new forms of intelligence and new professional skills, defining a design ecosystem in which the effectiveness of decision-making increasingly depends on the way information is managed. In such a scenario, the designer is asked to perform tasks of coordination and “meaning control” of complex and automated processes, which require a deep understanding of the digital phenomenon.
description: TECHNE - Journal of Technology for Architecture and Environment, TECHNE 21 (2021): Eteronomia dell'Architettura
Intersection theorems for finite general linear groups
Creators: name: Ernst, Alena
name: Schmidt, Kai-Uwe
Publisher: name: arXiv
Year: 2022
Subjects: subject: Combinatorics (math.CO)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 05D99 (Primary), 05E30, 20C33 (Secondary)

description: A subset $Y$ of the general linear group $\operatorname{GL}(n,q)$ is called $t$-intersecting if $\operatorname{rk}(x-y)\le n-t$ for all $x,y\in Y$, or equivalently $x$ and $y$ agree pointwise on a $t$-dimensional subspace of $\mathbb{F}_q^n$ for all $x,y\in Y$. We show that, if $n$ is sufficiently large compared to $t$, the size of every such $t$-intersecting set is at most that of the stabiliser of a basis of a $t$-dimensional subspace of $\mathbb{F}_q^n$. In case of equality, the characteristic vector of $Y$ is a linear combination of the characteristic vectors of the cosets of these stabilisers. We also give similar results for subsets of $\operatorname{GL}(n,q)$ that intersect not necessarily pointwise in $t$-dimensional subspaces of $\mathbb{F}_q^n$ and for cross-intersecting subsets of $\operatorname{GL}(n,q)$. These results may be viewed as variants of the classical Erdős-Ko-Rado Theorem in extremal set theory and are $q$-analogs of corresponding results known for the symmetric group. Our methods are based on eigenvalue techniques to estimate the size of the largest independent sets in graphs and crucially involve the representation theory of $\operatorname{GL}(n,q)$.
description: 34 pages, minor changes
Social aspirations of a minority group: social work implications : a comparative study
Creators: name: Farley, Reginald Percival
Publisher: name: University of Calgary
Year: 1970
Subjects: subject: E 78 A34 F35 1985
subject: Indians of North America - Alberta - Morley Reserve - Cultural assimilation
subject: Indians of North America - Alberta - Morley Reserve - Social conditions
subject: Social work with minorities - Alberta - Morley Reserve
subject: Social values

description: Bibliography: p. 65-69.
Manfred Nawroth, Das Gräberfeld von Pfahlheim und das Reitzubehör der Merowingerzeit
Creators: name: Graenert, Gabriele
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2020

description: Rezension zu: Manfred Nawroth, Das Gräberfeld von Pfahlheim und das Reitzubehör der Merowingerzeit. Wissenschaftliche Beibände zum Anzeiger des Germanischen Nationalmuseums, Band 19. Germanisches Nationalmuseum, Nürnberg 2001. ISBN 3-926982-72-1. 332 Seiten mit 90 S / W- und 33 Farbabbildungen sowie 60 Tafeln.
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 85 Nr. 1 (2007)
D$^\text{2}$UF: Deep Coded Aperture Design and Unrolling Algorithm for Compressive Spectral Image Fusion
Creators: name: Jacome, Roman
name: Bacca, Jorge
name: Arguello, Henry
Publisher: name: arXiv
Year: 2022
Subjects: subject: Image and Video Processing (eess.IV)
subject: Machine Learning (cs.LG)
subject: Optimization and Control (math.OC)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Compressive spectral imaging (CSI) has attracted significant attention since it employs synthetic apertures to codify spatial and spectral information, sensing only 2D projections of the 3D spectral image. However, these optical architectures suffer from a trade-off between the spatial and spectral resolution of the reconstructed image due to technology limitations. To overcome this issue, compressive spectral image fusion (CSIF) employs the projected measurements of two CSI architectures with different resolutions to estimate a high-spatial high-spectral resolution. This work presents the fusion of the compressive measurements of a low-spatial high-spectral resolution coded aperture snapshot spectral imager (CASSI) architecture and a high-spatial low-spectral resolution multispectral color filter array (MCFA) system. Unlike previous CSIF works, this paper proposes joint optimization of the sensing architectures and a reconstruction network in an end-to-end (E2E) manner. The trainable optical parameters are the coded aperture (CA) in the CASSI and the colored coded aperture in the MCFA system, employing a sigmoid activation function and regularization function to encourage binary values on the trainable variables for an implementation purpose. Additionally, an unrolling-based network inspired by the alternating direction method of multipliers (ADMM) optimization is formulated to address the reconstruction step and the acquisition systems design jointly. Finally, a spatial-spectral inspired loss function is employed at the end of each unrolling layer to increase the convergence of the unrolling network. The proposed method outperforms previous CSIF methods, and experimental results validate the method with real measurements.
description: 12 pages, 11 figures
Biomimetic design. Heteronomy and autopoiesis in the integration between technology and biology
Creators: name: Caldera, Carlo
name: Manni, Valentino
name: Valzano, Luca Saverio
Publisher: name: TECHNE - Journal of Technology for Architecture and Environment
Year: 2021

description: Applying systemic thinking to the resolution of complexity in biomimetic design allows technological integration between biological and man-made systems, thereby creating an autopoietic building organism. Emulating Nature in projects requires know-how cross-fertilization and hybridization. Mechanical solutions and those associated with the properties of materials are by no means the only options adaptive architecture can resort to in reproducing natural processes. This paper illustrates experiences that adopt adaptive autopoietic strategies at both urban and architectural product level. These strategies are typical of the natural world and involve the integration of technology and biology. The described experiences aim at highlighting the link between biomimetic design and the heteronomy of disciplines.
description: TECHNE - Journal of Technology for Architecture and Environment, TECHNE 21 (2021): Eteronomia dell'Architettura
Speech Recognition: Increasing Efficiency of Support Vector Machines
Creators: name: Khan, Aamir
name: Farhan, Muhammad
name: Ali, Asar
Publisher: name: arXiv
Year: 2012
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: With the advancement of communication and security technologies, it has become crucial to have robustness of embedded biometric systems. This paper presents the realization of such technologies which demands reliable and error-free biometric identity verification systems. High dimensional patterns are not permitted due to eigen-decomposition in high dimensional feature space and degeneration of scattering matrices in small size sample. Generalization, dimensionality reduction and maximizing the margins are controlled by minimizing weight vectors. Results show good pattern by multimodal biometric system proposed in this paper. This paper is aimed at investigating a biometric identity system using Support Vector Machines(SVMs) and Lindear Discriminant Analysis(LDA) with MFCCs and implementing such system in real-time using SignalWAVE.
description: 5 pages, 11 figures. arXiv admin note: text overlap with arXiv:1201.3720 and arXiv:1204.1177
Correspondence Between the Energy Equipartition Theorem in Classical Mechanics and its Phase-Space Formulation in Quantum Mechanics
Creators: name: Marulanda, Esteban
name: Restrepo, Alejandro
name: Restrepo, Johans
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In classical physics there is a well-known theorem in which it is established that the energy per degree of freedom is the same. However, in quantum mechanics due to the non-commutativity of some pairs of observables and the possibility of having non-Markovian dynamics, the energy is not equally distributed. We propose a correspondence between what we know about the classical energy equipartition theorem and its possible counterpart in phase-space formulation in quantum mechanics based on the Wigner representation. Also, we show that in the high-temperature regime, the classical result is recovered.
Amplitudes of low frequency modes in rotating B type stars
Creators: name: Lee, Umin
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Using weakly non-linear theory of oscillation, we estimate the amplitudes of low frequency modes in a slowly pulsating B (SPB) star, taking account of the effects of rotation on the modes. Applying the formulation by Schenk et al (2002), we compute non-linear coupling coefficient between the low frequency modes and estimate the equilibrium amplitudes of the modes excited in the star, assuming the amplitudes of the unstable modes are saturated as a result of non-linear coupling with stable modes, that is, as a result of parametric instability expected between one unstable mode and two stable modes. We use the traditional approximation to calculate adiabatic and non-adiabatic oscillations in a rotating star. We find $r$-modes in a rapidly rotating star play a significant role in the amplitude determination through non-linear coupling. We also find that for low $m$ modes, the fractional amplitudes of the radiative luminosity caused by the low frequency modes are of order $10^{-4}$ to $10^{-3}$ at the surface.
description: 14 pages, 6 figures, submitted to Monthly Notices of the Royal Astronomical Society
Pierre Allard, L’industrie lithique des populations rubanées du Nord-Est de la France et de la Belgique
Creators: name: Gronenborn, Detlef
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2020

description: Rezension zu: Pierre Allard, L’industrie lithique des populations rubanées du Nord-Est de la France et de la Belgique. Internationale Archäologie, Band 86. Verlag Marie Leidorf GmbH, Rahden / Westf. 2005. 71,50 E. ISBN 3-89646-358-6. ISSN 0939-561X. 290 Seiten, 149 Abbildungen und 151 Tafeln.
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 85 Nr. 2 (2007)
Stefanie Berg-Hobohm, Die germanische Siedlung Göritz, Lkr. Oberspreewald-Lausitz
Creators: name: Walter, Dörte
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2020

description: Rezension zu: Stefanie Berg-Hobohm, Die germanische Siedlung Göritz, Lkr. Oberspreewald-Lausitz. Brandenburgisches Landesamt für Denkmalpflege und Archäologisches Landesmuseum:Forschungen zur Archäologie im Land Brandenburg 7, Wünsdorf 2004. ISBN 3-910011-37-3. ISSN 0946-7734. 423 Seiten mit 77 Abbildungen, 167 Tafeln und einer Beilage.
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 86 Nr. 1 2008(2009)
The reason why doping causes superconductivity in LaFeAsO
Creators: name: Krüger, Ekkehard
name: Strunk, Horst P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The experimental observation of superconductivity in LaFeAsO appearing on doping is analyzed with the group-theoretical approach that evidently led in a foregoing paper (J. Supercond 24:2103, 2011) to an understanding of the cause of both the antiferromagnetic state and the accompanying structural distortion in this material. Doping, like the structural distortions, means also a reduction of the symmetry of the pure perfect crystal. In the present paper we show that this reduction modifies the correlated motion of the electrons in a special narrow half-filled band of LaFeAsO in such a way that these electrons produce a stable superconducting state.
Neutral atom entanglement using adiabatic Rydberg dressing
Creators: name: Mitra, Anupam
name: Omanakuttan, Sivaprasad
name: Martin, Michael J.
name: Biedermann, Grant W.
name: Deutsch, Ivan H.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We revisit the implementation of a two-qubit entangling gate, the Mølmer-Sørensen gate, using the adiabatic Rydberg dressing paradigm for neutral atoms as studied in [Phys. Rev. A 101, 030301 (R) (2020)]. We study the implementation of rapid adiabatic passage using a two-photon transition, which does not require the use of an ultra-violet laser, and can be implemented using only amplitude modulation of one field with all laser frequencies fixed. We find that entangling gate fidelities, comparable to the one-photon excitation, are achievable with the two-photon excitation. Moreover, we address how the adiabatic dressing protocol can be used to implement entangling gates outside the regime of a perfect Rydberg blockade. We show that using adiabatic dressing we can achieve scaling of gate fidelity set by the fundamental limits to entanglement generated by the Rydberg interactions while simultaneously retaining a limited population in the doubly-excited Rydberg state. This allows for fast high fidelity gates for atoms separated beyond the blockade radius.
Counting Travellers in Scotland, 1992
Creators: name: Scottish Office, Central Research Unit
Publisher: name: UK Data Service
Year: 1999

description: The prime purpose of the 1992 count was to provide an up to date estimate of the total numbers of Traveller households in Scotland, together with their distribution District by District. The secondary purpose was to obtain information about the nature of the Traveller population to assess current demographic profiles and the nature of accommodation used by Travellers.
Complex Radio Spectral Energy Distributions in Luminous and Ultraluminous Infrared Galaxies
Creators: name: Leroy, Adam K.
name: Evans, Aaron S.
name: Momjian, Emmanuel
name: Murphy, Eric
name: Ott, Juergen
name: Armus, Lee
name: Condon, James
name: Haan, Sebastian
name: Mazzarella, Joseph M.
name: Meier, David S.
name: Privon, George C.
name: Schinnerer, Eva
name: Surace, Jason
name: Walter, Fabian
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We use the Expanded Very Large Array to image radio continuum emission from local luminous and ultraluminous infrared galaxies (LIRGs and ULIRGs) in 1 GHz windows centered at 4.7, 7.2, 29, and 36 GHz. This allows us to probe the integrated radio spectral energy distribution (SED) of the most energetic galaxies in the local universe. The 4-8 GHz flux densities agree well with previous measurements. They yield spectral indices α\approx -0.67 (where F_ν\propto ν^α) with \pm 0.15 (1σ) scatter, typical of nonthermal (synchrotron) emission from star-forming galaxies. The contrast of our 4-8 GHz data with literature 1.5 and 8.4 GHz flux densities gives further evidence for curvature of the radio SED of U/LIRGs. The SED appears flatter near \sim 1 GHz than near \sim 6 GHz, suggesting significant optical depth effects at the lower frequencies. The high frequency (28-37 GHz) flux densities are low compared to extrapolations from the 4-8 GHz data. We confirm and extend to higher frequency a previously observed deficit of high frequency radio emission for luminous starburst galaxies.
description: 7 pages, 3 figures, 1 table, accepted for publication in the EVLA Special Issue of ApJ Letters
Beyond sustainability. Regenerative technologies for a restorative indoor environment
Creators: name: Romano, Rosa
name: Konstantinou, Thaleia
name: Fiorito, Francesco
Publisher: name: TECHNE - Journal of Technology for Architecture and Environment
Year: 2021

description: Starting from the results of the COST RESTORE research, the paper promotes the adoption of a new methodological approach to sustainable design capable of ensuring the energy efficiency of a building and the psychological well-being and health of its users by re-establishing harmony with nature. More specifically, it presents some of the most innovative technological envelope and system solutions used to create restorative environments, identifying existing connections between the design and implementation of regenerative building systems. The aim is to define a project idea that increasingly features typological and morphological contaminations of the environment.
description: TECHNE - Journal of Technology for Architecture and Environment, TECHNE 21 (2021): Eteronomia dell'Architettura
Rupert Gebhard u. Rüdiger Krause: Bernstorf. Archäologisch-naturwissenschaftliche Analysen der Gold- und Bernsteinfunde vom Bernstorfer Berg bei Kranzberg, Oberbayern
Creators: name: Reichenberger, Alfred
Publisher: name: Jahresschrift für mitteldeutsche Vorgeschichte
Year: 2020

description: Rezension zu: Rupert Gebhard u. Rüdiger Krause: Bernstorf. Archäologisch-naturwissenschaftliche Analysen der Gold- und Bernsteinfunde vom Bernstorfer Berg bei Kranzberg, Oberbayern. Abhandlungen und Bestandskataloge der Archäologischen Staatssammlung 3. Hrsg. von Rupert Gebhard. Zugleich: Frankfurter Archäologische Schriften 31/32. Hrsg. von Hans-Markus von Kaenel, Rüdiger Krause, Jan-Waalke Meyer und Wulf Raeck = Bernstorf-Forschungen 1. Verlag: Archäologische Staatssammlung München – Museum für Vor- und Frühgeschichte, München 2016. 319 Seiten, 168 Abbildungen, 50 Tabellen und 15 Abdrucke
description: Jahresschrift für mitteldeutsche Vorgeschichte, Bd. 96 (2017): Jahresschrift für Mitteldeutsche Vorgeschichte