cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Oriented Bounding Boxes for Small and Freely Rotated Objects
Creators: name: Zand, Mohsen
name: Etemad, Ali
name: Greenspan, Michael
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: A novel object detection method is presented that handles freely rotated objects of arbitrary sizes, including tiny objects as small as $2\times 2$ pixels. Such tiny objects appear frequently in remotely sensed images, and present a challenge to recent object detection algorithms. More importantly, current object detection methods have been designed originally to accommodate axis-aligned bounding box detection, and therefore fail to accurately localize oriented boxes that best describe freely rotated objects. In contrast, the proposed CNN-based approach uses potential pixel information at multiple scale levels without the need for any external resources, such as anchor boxes.The method encodes the precise location and orientation of features of the target objects at grid cell locations. Unlike existing methods which regress the bounding box location and dimension,the proposed method learns all the required information by classification, which has the added benefit of enabling oriented bounding box detection without any extra computation. It thus infers the bounding boxes only at inference time by finding the minimum surrounding box for every set of the same predicted class labels. Moreover, a rotation-invariant feature representation is applied to each scale, which imposes a regularization constraint to enforce covering the 360 degree range of in-plane rotation of the training samples to share similar features. Evaluations on the xView and DOTA datasets show that the proposed method uniformly improves performance over existing state-of-the-art methods.
description: IEEE Transactions on Geoscience and Remote Sensing, 2021
Impact of the floating-point precision and interpolation scheme on the results of DNS of turbulence by pseudo-spectral codes
Creators: name: Homann, Holger
name: Dreher, Jürgen
name: Grauer, Rainer
Publisher: name: arXiv
Year: 2007
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: In this paper we investigate the impact of the floating-point precision and interpolation scheme on the results of direct numerical simulations (DNS) of turbulence by pseudo-spectral codes. Three different types of floating-point precision configurations show no differences in the statistical results. This implies that single precision computations allow for increased Reynolds numbers due to the reduced amount of memory needed. The interpolation scheme for obtaining velocity values at particle positions has a noticeable impact on the Lagrangian acceleration statistics. A tri-cubic scheme results in a slightly broader acceleration probability density function than a tri-linear scheme. Furthermore the scaling behavior obtained by the cubic interpolation scheme exhibits a tendency towards a slightly increased degree of intermittency compared to the linear one.
description: to appear in Comp. Phys. Comm
Specular Andreev reflection and its detection
Creators: name: Cheng, Qiang
name: Sun, Qing-Feng
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We propose a universal method to detect the specular Andreev reflection taking the simple two dimensional Weyl nodal-line semimetal-superconductor double-junction structure as an example. The quasiclassical quantization conditions are established for the energy levels of bound states formed in the middle semimetal along a closed path. The establishment of the conditions is completely based on the intrinsic character of the specularly reflected hole which has the same sign relation of its wave vector and group velocity with the incident electron. This brings about the periodic oscillation of conductance with the length of the middle semimetal, which is lack for the retro-Andreev reflected hole having the opposite sign relation with the incident electron. The positions of the conductance peaks and the oscillation period can be precisely predicted by the quantization conditions. Our detection method is irrespective of the details of the materials, which may promote the experimental detection of and further researches on the specular Andreev reflection as well as its applications in superconducting electronics.
description: 10 pages, 6 figures
Efficacy of 2-phenoxyethanol as an Anesthetic for Two Size of Persian Sturgeon, Acipenser persicus
Creators: name: Abdolreza JAHANBAKHSHI, Fardin SHALUEI
Publisher: name: Walailak University
Year: 2012
Subjects: 2-Phenoxyethanol, Anesthesia, Persian sturgeon, recovery, Induction time

description: 1, 9, Walailak Journal of Science and Technology
Quantum gravity and charge renormalization
Creators: name: Toms, David J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the question of the gauge dependence of the quantum gravity contribution to the running gauge coupling constant for electromagnetism. The calculations are performed using dimensional regularization in a manifestly gauge invariant and gauge condition independent formulation of the effective action. It is shown that there is no quantum gravity contribution to the running charge, and hence there is no alteration to asymptotic freedom at high energies as predicted by Robinson and Wilczek.
description: 4 pages, revtex, to appear in Phys. Rev. D
Additional file 14 of Disentangling the mechanisms shaping the surface ocean microbiota
Creators: name: Logares, Ramiro
name: Deutschmann, Ina M.
name: Junger, Pedro C.
name: Giner, Caterina R.
name: Krabberød, Anders K.
name: Schmidt, Thomas S. B.
name: Rubinat-Ripoll, Laura
name: Mestre, Mireia
name: Salazar, Guillem
name: Ruiz-González, Clara
name: Sebastián, Marta
name: de Vargas, Colomban
name: Acinas, Silvia G.
name: Duarte, Carlos M.
name: Gasol, Josep M.
name: Massana, Ramon
Publisher: name: figshare
Year: 2020
Subjects: subject: Oceanography
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences

description: Additional file 14: Table S6. Significant MIC associations (MIC > 0.5) between OTUs and environmental parameters in the TARA Oceans dataset.
Analysis of Influences on Solar Wafers during Pick-and-Place Operations
Creators: name: Fischmann, C.
name: Giesen, T.
name: Wertz, R.
name: Böttinger, F.
name: Böffert, N.
name: Verl, A.
Publisher: name: WIP
Year: 2012
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Manufacturing Issues and Processing

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 1171-1174
description: Beside the process optimization in solar cell manufacturing within the last years, the automated
transport from one process to the following is one major aspect. To stay competitive in this more and more volatile
market, the breakage and damage of the wafer and solar cells is essential. Therefore it is absolutely beneficial to
know the damage potential of your processes and transport or handling systems. Actual state-of-the-art quality
measurement equipments are often insufficient to give a detailed analysis about the influences of the handling
influences. Especially the high-speed pick-and-place operations may have influences on the handling object.
Therefore new methods for the evaluation of handling influences on the wafer or cell quality is required. With
regards to the developments mentioned above, this paper is aimed at the analysis of the forces executed by the
gripper on the wafer. Based on these values an indirect evaluation of the handling process can be done.
Character of Locally Inequivalent Classes of States and Entropy of Entanglement
Creators: name: Chattopadhyay, Indrani
name: Sarkar, Debasis
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this letter we have established the physical character of pure bipartite states with the same amount of entanglement in the same Schmidt rank that either they are local unitarily connected or they are incomparable. There exist infinite number of deterministically locally inequivalent classes of pure bipartite states in the same Schmidt rank (starting from three) having same amount of entanglement. Further, if there exists incomparable states with same entanglement in higher Schmidt ranks (greater than three), then they should differ in at least three Schmidt coefficients.
description: 4 pages, revtex4, no figure, accepted in Physical Review A (rapid communications)
Test of the European JRC Performance Model for c-Si PV Modules
Creators: name: Yordanov, G.H.
name: Midtgård, O.-M.
name: Odden, J.O.
name: Sætre, T.O.
Publisher: name: WIP
Year: 2012
Subjects: Components for PV Systems
PV Modules

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 3306-3312
description: The relative efficiency with respect to Standard Testing Conditions (STC) of ten c-Si PV modules is studied at various illumination levels and operating temperatures. A model proposed recently by a team led by the European Joint Research Centre (JRC) is tested for generic mono- and mc-Si devices with screen-printed cells as well as for three high-efficiency cell designs. Two of the modules are aged. Individual as well as averaged model coefficients are compared to values found in the literature. Theoretical relationships are proposed between the first two model coefficients and I-V curve parameters such as ideality factor and series resistance. The fitted and predicted values agree reasonably well for the tested devices. The different performance of similar module types at intermediate and low irradiances is thus explained with solar cell physics. The derived equations may be useful to PV
manufacturers as quantitative guidelines for designing products with superior energy yields.
Fluxes and angular momentum
Creators: name: Helfer, Adam D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The Ashtekar-Streubel fluxes give a proposed definition of the angular momentum emitted by an isolated gravitationally radiating system. This was based on identifying a "phase space of radiative modes," independent of any internal degrees of freedom, and using the Hamiltonian functions conjugate to the action of the Bondi-Metzner-Sachs (BMS) group as the energy-momentum, supermomentum and angular momentum. However, there are some difficulties in formulating this phase space so as to get the proper degrees of freedom. I consider how to address this point, and also to identify circumstances in which the radiative modes are sufficiently decoupled that they can be assigned their own angular momentum. Two different phase spaces are considered. One, which seems to reflect what previous workers have done (it leads to the usual formulas for the Ashtekar-Streubel fluxes), is mathematically simpler, but this has unwanted degrees of freedom and is difficult to interpret physically. The second is a quotient of the first; it is better justified (at least in terms of degrees of freedom), and plausibly decouples the radiative angular momentum from internal modes (at least for systems which ultimately become stationary). The symplectic form for this quotient, and the corresponding angular momentum flux, involve highly non-local correlations. Both phase spaces are shown to have Poisson brackets implementing the BMS algebra. For both phase spaces, for axisymmetric space-times vacuum near null infinity, there can be no gravitational radiation of angular momentum about the axis of symmetry, although matter can carry off angular momentum in such cases.
description: 16 pages, appeared in PRD
Temperature Dependence of Violation of Bell's Inequality in Coupled Quantum Dots in a Microcavity
Creators: name: Du, Cheng-Ran
name: Zhu, Ka-Di
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Bell's inequality in two coupled quantum dots within cavity QED, including Forster and exciton-phonon interactions, is investigated theoretically. It is shown that the environmental temperature has a significant impact on Bell's inequality.
LRG at TREC 2020: Document Ranking with XLNet-Based Models
Creators: name: Sharma, Abheesht
name: Pandey, Harshit
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Retrieval (cs.IR)
subject: Computation and Language (cs.CL)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Establishing a good information retrieval system in popular mediums of entertainment is a quickly growing area of investigation for companies and researchers alike. We delve into the domain of information retrieval for podcasts. In Spotify's Podcast Challenge, we are given a user's query with a description to find the most relevant short segment from the given dataset having all the podcasts. Previous techniques that include solely classical Information Retrieval (IR) techniques, perform poorly when descriptive queries are presented. On the other hand, models which exclusively rely on large neural networks tend to perform better. The downside to this technique is that a considerable amount of time and computing power are required to infer the result. We experiment with two hybrid models which first filter out the best podcasts based on user's query with a classical IR technique, and then perform re-ranking on the shortlisted documents based on the detailed description using a transformer-based model.
description: Published at TREC 2020
Additional file 1 of Clinically significant genomic alterations in the Chinese and Western patients with intrahepatic cholangiocarcinoma
Creators: name: Shifeng Xu
name: Guo, Yuan
name: Yanwu Zeng
name: Zhijian Song
name: Xiaodan Zhu
name: Fan, Ning
name: Zhilei Zhang
name: Guibing Ren
name: Zang, Yunjin
name: Rao, Wei
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1: Supplemental Table 1. The actionability of driver genes
Strategies for Efficient Exploitation of Solar Energy: A Model of the Photovoltaic Conversion Process Based on TRIZ, the Theory of Inventive Problem Solving
Creators: name: Polverini, D.
name: Graziosi, S.
name: Taylor, N.
Publisher: name: WIP
Year: 2012
Subjects: Material Studies, New Concepts and Ultra-High Efficiency
Fundamental Material Studies

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 444-450
description: While PV has been developing dramatically in the last few years, the scope for improving energy
conversion remains enormous, as witnessed by gap between the efficiency of commercial products (10-20%) and a
theoretical potential for reaching over 60%. In this context it is important to be able to horizon-scan for new and
improved concepts in a systematic and structured way. The Theory of Inventive Problem Solving (also known as
TRIZ) has been applied to analyse the PV conversion process, taking a c-Si cell as the baseline scenario. Comparison
of several innovative concepts with this baseline highlights their potential impact on loss mechanisms. The approach
has the potential to provide important insights for future PV technology innovation, although further work is needed.
Additional file 10 of Disentangling the mechanisms shaping the surface ocean microbiota
Creators: name: Logares, Ramiro
name: Deutschmann, Ina M.
name: Junger, Pedro C.
name: Giner, Caterina R.
name: Krabberød, Anders K.
name: Schmidt, Thomas S. B.
name: Rubinat-Ripoll, Laura
name: Mestre, Mireia
name: Salazar, Guillem
name: Ruiz-González, Clara
name: Sebastián, Marta
name: de Vargas, Colomban
name: Acinas, Silvia G.
name: Duarte, Carlos M.
name: Gasol, Josep M.
name: Massana, Ramon
Publisher: name: figshare
Year: 2020
Subjects: subject: Oceanography
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences

description: Additional file 10: Table S3. Summary of association networks from the Malaspina dataset based on SparCC.
The Impact of Guilt on Interpersonal Relationships
Creators: name: Teneva, Nadya
Publisher: name: Digital Repository at the University of Maryland
Year: 2019
Subjects: subject: Psychology
subject: FOS: Psychology
subject: Social psychology
subject: amends
subject: guilt
subject: relationships
subject: wrongdoing

description: People feel guilt when they harm others. Research on guilt has found its mixed effects on interpersonal relationships. The current dyadic study investigates the primary hypothesis that two facets of guilt expression: sharing repair motivations and elaborating on transgression details, have offsetting effects on outcomes through their influence on victim’s perceptions. Perpetrators described an incident in which they expressed guilt to a partner (victims), and both parties completed measures regarding the incident. Results suggest that perpetrators who feel guilty expressed more repair motivations and more wrongdoing, and victims’ perceptions of the incident were connected to personal and relational outcomes. However, victims and perpetrators did not agree on perpetrators’ expressions of wrongdoing or repair motivation, suggesting that guilt may often have weak or mixed effects because it is not always accurately detected. In addition, several moderators of the links between guilt, guilt expression, and victims’ perceptions of the conflict were identified.
A Comparison of Design Features of 80 PV-Powered Products
Creators: name: Apostolou, G.
name: Reinders, A.H.M.E.
Publisher: name: WIP
Year: 2012
Subjects: PV Systems
Off-grid Applications

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 4227-4232
description: In this paper 80 commercially available PV products have been analysed. The data set comprises 46
low power PV products in the range of 0 to 17 Wp and 34 PV products with a power of 17 Wp up to 27 kWp.
The goal of our study is to investigate and evaluate features of PV products that are available on the market now and
to present features that are important for manufacturers, industrial designers and users. Finally this survey is meant to
identify topics relevant for research on products with integrated PV systems. In our study we analysed (1) the energy
technologies applied in this set of products, (2) financial aspects and (3) several human factors. The data have been
collected with a questionnaire by about 100 master students. Various features of these PV products were analysed and
compared such as PV technology of the products, battery type and capacity, operational voltage, costs and number of
simultaneous users. Because of the limited number of PV products analysed we cannot have a spherical picture of PV
products’ design features. However through this study, valuable information about several features of products has
been collected.
Resonance fluorescence in driven quantum dots: electron and photon correlations
Creators: name: Sánchez, Rafael
name: Platero, Gloria
name: Brandes, Tobias
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the counting statistics for electrons and photons being emitted from a driven two level quantum dot. Our technique allows us to calculate their mutual correlations as well. We study different transport configurations by tuning the chemical potential of one of the leads to find that the electronic and photonic fluctuations can be externally manipulated by tuning the AC and transport parameters. We also propose special configurations where electron-photon correlation is maximal meaning that spontaneous emission of photons with a well defined energy is regulated by single electron tunneling. Interesting features are also obtained for energy dependent tunneling.
description: 20 pages, 19 figures. Minor changes
Nano Imprint Lithography of Textures for Light Trapping in Thin Film Silicon Solar Cells
Creators: name: Soppe, W.J.
name: Dörenkämper, M.
name: Notta, J.B.
name: Pex, P.P.A.C.
name: Schipper, W.
name: Wilde, R.
Publisher: name: WIP
Year: 2012
Subjects: Thin Film Solar Cells
Amorphous and Microcrystalline Silicon Solar Cells

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 2117-2119
description: Nano Imprint Lithography (NIL) is a versatile and commercially viable technology for fabrication of
structures for light trapping in solar cells. We demonstrate the applicability of NIL in thin film silicon solar cells in
substrate configuration, where NIL is used to fabricate a textured rear contact of the solar cells. We applied random
structures, based on the natural texture of SnO:F grown by APCVD, and designed 2D periodic structures and show
that for single junction c-Si cells these textured rear contacts lead to an increase of Jsc of more than 40 % in
comparison to cells with flat rear contacts. Cells on optimized periodic textures showed higher fill factors which can
be attributed to reduced microcrack formation, leading to less shunting in comparison to cells on random textures.
Spectral Irradiance Measurements in a Room Fit for Indoor PV Products
Creators: name: Apostolou, G.
name: Reinders, A.H.M.E.
name: Verwaal, M.
Publisher: name: WIP
Year: 2012
Subjects: PV Systems
Off-grid Applications

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 4240-4244
description: In this study we analyse indoor irradiance for applications of indoor products integrated
photovoltaic(IPIPV). With the results of this survey, industrial designers will be better informed about weak light
conditions in indoor environments when developing PV products for indoor use.
Measurements were conducted using a spectroradiometer by StellarNet. Two different test rooms were been chosen
for indoor irradiance measurements at TU Delft and at Twente University. Measurements were conducted from
March to June 2012. The irradiance measured on several positions in both rooms is a combination of natural light and
artificial light irradiance. Three different positions of the sensor were been chosen for the measurements in each
room. Different distances from windows and lamps used as the positions of the sensor. The goal of this study is to
measure and define how indoor irradiance is changing as the distance of the sensor from the light sources is changing.
The irradiance measured in all these positions in both rooms was lower than expected and also low for a PV product
to function properly under these irradiance conditions.
Revised phase diagram of the high-$T_c$ cuprate superconductor Pb-doped Bi$_2$Sr$_2$CaCu$_2$O$_{8+δ}$ revealed by anisotropic transport measurements
Creators: name: Harada, Keiichi
name: Teramoto, Yuki
name: Usui, Tomohiro
name: Itaka, Kenji
name: Fujii, Takenori
name: Noji, Takashi
name: Taniguchi, Haruka
name: Matsukawa, Michiaki
name: Ishikawa, Hajime
name: Kindo, Koichi
name: Dessau, Daniel S.
name: Watanabe, Takao
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Although phase diagrams can be leveraged to investigate high transition temperature (high-$T_c$) superconductivity, the issue has not been discussed thoroughly. In this study, we elucidate the phase diagram of the overdoped side of high-$T_c$ cuprates via systematic anisotropic transport measurements for Pb-doped Bi-2212 single crystals. We demonstrate that the characteristic temperatures of the "weak" pseudogap opening and electronic coherence cross each other at a critical doping level, while those of the "strong" pseudogap merges into that of superconducting fluctuations above the critical doping level. Our results indicate the importance of Mottness in high-$T_c$ superconductivity.
description: 8 pages, 9 figures; The title is changed
Influence of Laser Wavelength on Laser-Fired Contacts for Crystalline Silicon Solar Cells
Creators: name: Sánchez-Aniorte, I.
name: Munoz-Martin, D.
name: Morales, M.
name: Ortega, P.
name: Martín, I.
name: Colina Brito, M.
name: Alcubilla González, R.
name: Molpeceres, C.
Publisher: name: WIP
Year: 2012
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Silicon Solar Cell Improvements

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 1688-1691
description: In the Laser-Fired Contact (LFC) process, a laser beam fires a metallic layer through a dielectric
passivating layer into the silicon wafer to form an electrical contact with the silicon bulk [1]. This laser technique is an
interesting alternative for the fabrication of both laboratory and industrial scale high efficiency passivated emitter and
rear cell (PERC). One of the principal characteristics of this promising technique is the capability to reduce the
recombination losses at the rear surface in crystalline silicon solar cells. Therefore, it is crucial to optimize LFC because
this process is one of the most promising concepts to produce rear side point contacts at process speeds compatible with
the final industrial application. In that sense, this work investigates the optimization of LFC processing to improve the
back contact in silicon solar cells using fully commercial solid state lasers with pulse width in the ns range, thus studying
the influence of the wavelength using the three first harmonics (corresponding to wavelengths of 1064 nm, 532 nm and
355 nm).
Previous studies of our group focused their attention in other processing parameters as laser fluence, number of
pulses, passivating material [2, 3] thickness of the rear metallic contact [4], etc. In addition, the present work completes
the parametric optimization by assessing the influence of the laser wavelength on the contact property. In particular we
report results on the morphology and electrical behaviour of samples specifically designed to assess the quality of the
process. In order to study the influence of the laser wavelength on the contact feature we used as figure of merit the
specific contact resistance. In all processes the best results have been obtained using green (532 nm) and UV (355 nm),
with excellent values for this magnitude far below 1 mΩcm2.
Additional file 16 of Disentangling the mechanisms shaping the surface ocean microbiota
Creators: name: Logares, Ramiro
name: Deutschmann, Ina M.
name: Junger, Pedro C.
name: Giner, Caterina R.
name: Krabberød, Anders K.
name: Schmidt, Thomas S. B.
name: Rubinat-Ripoll, Laura
name: Mestre, Mireia
name: Salazar, Guillem
name: Ruiz-González, Clara
name: Sebastián, Marta
name: de Vargas, Colomban
name: Acinas, Silvia G.
name: Duarte, Carlos M.
name: Gasol, Josep M.
name: Massana, Ramon
Publisher: name: figshare
Year: 2020
Subjects: subject: Oceanography
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences

description: Additional file 16: Figure S9. Stations (total 36) from the Malaspina dataset featuring a comparatively large contribution to the overall β-diversity (LCBD = Local Contributions to Beta Diversity [38]; p<0.05).
Elementary Proof for Asymptotics of Large Haar-Distributed Unitary Matrices
Creators: name: Mastrodonato, Christian
name: Tumulka, Roderich
Publisher: name: arXiv
Year: 2007
Subjects: subject: Probability (math.PR)
subject: Quantum Physics (quant-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 15A52, 60B10

description: We provide an elementary proof for a theorem due to Petz and Réffy which states that for a random $n\times n$ unitary matrix with distribution given by the Haar measure on the unitary group U(n), the upper left (or any other) $k\times k$ submatrix converges in distribution, after multiplying by a normalization factor $\sqrt{n}$ and as $n\to\infty$, to a matrix of independent complex Gaussian random variables with mean 0 and variance 1.
Quantum private queries
Creators: name: Giovannetti, Vittorio
name: Lloyd, Seth
name: Maccone, Lorenzo
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a cheat sensitive quantum protocol to perform a private search on a classical database which is efficient in terms of communication complexity. It allows a user to retrieve an item from the server in possession of the database without revealing which item she retrieved: if the server tries to obtain information on the query, the person querying the database can find it out. Furthermore our protocol ensures perfect data privacy of the database, i.e. the information that the user can retrieve in a single queries is bounded and does not depend on the size of the database. With respect to the known (quantum and classical) strategies for private information retrieval, our protocol displays an exponential reduction both in communication complexity and in running-time computational complexity.
description: 4 pages, 1 figure
Correlations of the IR Luminosity and Eddington Ratio with a Hard X-ray Selected Sample of AGN
Creators: name: Mushotzky, R. F.
name: Winter, L. M.
name: McIntosh, D. H.
name: Tueller, J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We use the SWIFT Burst Alert Telescope (BAT) sample of hard x-ray selected active galactic nuclei (AGN) with a median redshift of 0.03 and the 2MASS J and K band photometry to examine the correlation of hard x-ray emission to Eddington ratio as well as the relationship of the J and K band nuclear luminosity to the hard x-ray luminosity. The BAT sample is almost unbiased by the effects of obscuration and thus offers the first large unbiased sample for the examination of correlations between different wavelength bands. We find that the near-IR nuclear J and K band luminosity is related to the BAT (14 - 195 keV) luminosity over a factor of $10^3$ in luminosity ($L_{IR} \approx L_{BAT}^{1.25}$)and thus is unlikely to be due to dust. We also find that the Eddington ratio is proportional to the x-ray luminosity. This new result should be a strong constraint on models of the formation of the broad band continuum.
description: accepted to ApJL
Cognitive and Behavioral Biases Toward Close Partners in Conflict with Others
Creators: name: Ryan, Joshua Everett
Publisher: name: Digital Repository at the University of Maryland
Year: 2019
Subjects: subject: Social psychology
subject: bias
subject: blame
subject: conflict
subject: derogation
subject: positive illusions
subject: relationships

description: The current research explored whether people exhibited biased perceptions and behavioral responses to conflicts involving close partners relative to more psychologically distant relations. In Study 1, participants read a short vignette describing a conflict between two individuals in which one person (i.e., the perpetrator) upset or hurt another (i.e., the victim). Participants either imagined a close partner filling the role of perpetrator, victim, or neither role, in the conflict scenario. Results indicated that participants both attributed and communicated more blame for individuals who hurt or upset close partners relative to strangers – a “magnification” effect. Participants also communicated less blame for victims who were close partners relative to strangers. In Study 2, participants recalled actual conflicts where either close or distant partners served the role of perpetrator or victims in conflicts with other individuals. Results indicated that participants “magnified” the blame for individuals who hurt or upset close, but not distant, partners. Participants also attributed less blame to close partners that they empathized with, and this reduction in blame predicted biased behavioral responding, which included more favorable portrayals of partners, less favorable portrayals of adversaries, more consolation of close partners, and more validation of partners who were upset by adversaries when partners were close relative to distant. Implications for these results and suggestions for future directions are discussed.
Mesoporous matrices for quantum computation with improved response through redundance
Creators: name: Hodgson, T.
name: Bertino, M.
name: Leventis, N.
name: D'Amico, I.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a solid state implementation of quantum computation, which improves previously proposed optically driven schemes. Our proposal is based on vertical arrays of quantum dots embedded in a mesoporous material which can be fabricated with present technology. The redundant encoding typical of the chosen hardware protects the computation against gate errors and the effects of measurement induced noise. The system parameters required for quantum computation applications are calculated for II-VI and III-V materials and found to be within the experimental range. The proposed hardware may help minimize errors due to polydispersity of dot sizes, which is at present one of the main problems in relation to quantum dot-based quantum computation.
description: To be published in Journal of Applied Physics
Reduced order modeling of nonlinear microstructures through Proper Orthogonal Decomposition
Creators: name: G., Gobat
name: A., Opreni
name: S., Fresca
name: A., Manzoni
name: A, Frangi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: We apply the Proper Orthogonal Decomposition (POD) method for the efficient simulation of several scenarios undergone by Micro-Electro-Mechanical-Systems, involving nonlinearites of geometric and electrostatic nature. The former type of nonlinearity, associated to the large displacements of the devices, leads to polynomial terms up to cubic order that are reduced through exact projection onto a low-dimensional subspace spanned by the Proper Orthogonal Modes (POMs). On the contrary, electrostatic nonlinearities are modeled resorting to precomputed manifolds in terms of the amplitudes of the electrically active POMs. We extensively test the reliability of the assumed linear trial space in challenging applications focusing on resonators, micromirrors and arches also displaying internal resonances. We discuss several options to generate the matrix of snapshots using both classical time marching schemes and more advanced Harmonic Balance (HB) approaches. Furthermore, we propose a comparison between the periodic orbits computed with POD and the invariant manifold approximated with Direct Parametrization approaches, further stressing the reliability of the technique and its remarkable predictive capabilities, e.g., in terms of estimation of the frequency response function of selected output quantities of interest.
Quantum-like Description of Probabilistic Data from Shafir-Tversky Experiments: evidence of trigonometric and hyperbolic (!) interference
Creators: name: Khrennikov, Andrei
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: In this paper we present quantum-like (QL) representation of the Shafir-Tversky statistical effect. We apply so called contextual approach. The Shafir-Tversky effect is considered as a consequence of combination of a number of incompatible contexts which are involved e.g. in Prisoner's Dilemma or in more general games inducing the disjunction effect. As a consequence, the law of total probability is violated for experimental data obtained by Shafir and Tversky (1992) as well as Tversky and Shafir (1992). Moreover, we can find a numerical measure of contextual incompatibility (so called coefficient of interference) as well as represent contexts which are involved in Prisoner's Dilemma (PD) by probability amplitudes -- normalized vectors (``mental wave functions''). We remark that statistical data from Shafir and Tversky (1992) and Tversky and Shafir (1992) experiments differ crucially from the point of view of mental interference. The second one exhibits the conventional trigonometric ($\cos$-type) interference, but the first one exhibits so called hyperbolic ($\cosh$-type) interference. We discuss QL processing of information by cognitive systems, in particular, QL decision making as well as classical and QL rationality.
description: Comparative discussion on the meaning of contextuality in quantum mechanics (Bell's contextuality) and cognitive science and AI. Discussion is based on papers of Svozil and Bernasconi--Gustafson, respectively
Impedance spectroscopy and conduction mechanism of a BiFe$_{0.95}$Mn$_{0.05}$O$_3$ thin film
Creators: name: Yousfi, S.
name: Marssi, M. El
name: Bouyanfif, H.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Dielectric response and conduction mechanism were investigated for a multiferroic BiFe$_{0.95}$Mn$_{0.05}$O$_3$ epitaxial thin film. A contribution from a thermally activated interface (0.37 eV) and the bulk of the film on the dielectric response were observed through the comparison between experimental results and equivalent circuit model. The low frequency interface relaxation signatures strongly suggest a Maxwell-Wagner space charge origin. The alternative current conductivity deduced from the model follows a power law frequency dependence suggesting a polaronic hopping mechanism while the low frequency limit is in perfect agreement with the direct current conduction mechanism. The current-voltage characteristics were indeed correlated with Schottky-Simmons interface limited transport with activation energy of 0.36 eV, close to the one extracted from the impedance analysis. Such analysis of the electrostatic landscape and dielectric behaviour may help to further understanding the anomalous photo-induced properties in the BiFeO$_3$ system.
Improvement of the Solar Cell Efficiency by Reducing the Series Resistance Using a Print-on-Print-Process
Creators: name: Urban, T.
name: Wissen, D.
name: Mette, A.
name: Fischer, M.
Publisher: name: WIP
Year: 2012
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Silicon Solar Cell Improvements

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 1660-1662
description: The optimization of the front side metallization is one of the main efforts in solar cell business to improve the solar cell efficiency as well as to reduce the production costs. Fine line and high aspect ratio grid fingers are preferred to reduce shadowing as well as the series resistance. A significant improvement of the front
metallization was carried out on the last years using the most common industrial screen printing technology. In this work the print-on-print process has been studied in detail. An efficiency increase of 0.2% abs. was achieved compared to the single-print process. Economical calculation reveals the profitability of this process for solar cell mass production.
Analysis of Solar Cell Series Resistance Components and Comparison with Electroluminescence Images
Creators: name: Bengoechea, J.
name: Ezquer Mayo, M.
name: Zugasti, E.
name: Rodriguez, M.J.
name: Lagunas, A.R.
Publisher: name: WIP
Year: 2012
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Silicon Solar Cell Characterization and Modelling

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 1242-1245
description: This work aims to determine the origin of the high series resistance of a solar cell detected by means of an
electroluminescence image. With this purpose, the main components of the series resistance, i.e. busbar, finger, contact
between gridlines and silicon, and emitter sheet resistances have been determined through resistance measurements in a
four-wire sensing configuration. For the spatially resolved determination of the finger, contact, and emitter sheet
resistance contributions, an infrared pulsed laser was used to electrically isolate the required areas of the solar cell,
meaning the destruction of the finished solar cell. The transmission line model was used for the spatially resolved
measurement of both contact and emitter sheet resistance contributions. The spatially resolved series resistance data have
been compared with the electroluminescence image, showing a good correlation. The solar cell series resistance has been
calculated as the average of the local series resistance data, and has been compared to the value determined from the I-V
curve fit providing, again, a satisfactory result.
Cultural humility, therapeutic relationship, and outcome: Between-therapist, within-therapist, and within-client effects
Creators: name: Morales, Katherine Chante
Publisher: name: Digital Repository at the University of Maryland
Year: 2019
Subjects: subject: Psychology
subject: FOS: Psychology
subject: counseling
subject: cultural humility
subject: HLM
subject: psychodynamic therapy
subject: session evaluation
subject: working alliance

description: The present study longitudinally examined the association between client-perceived cultural humility (CH) of the therapist, dyadic working alliance (WA), and dyadic session evaluation (SES). We analyzed cultural humility scores at three levels: a) between therapist b) within-therapist and c) within-client. Using a sample of 79 clients, 15 therapists, and 231 time periods, we conducted two multilevel analyses using dyadic WA and dyadic SES as predictors. We found that high between-therapist, within-therapist, and within-client CH yielded higher dyadic WA scores. We also found that within-therapist and within-client CH yielded higher dyadic SES scores. However, importance of client identity did not act as moderator as predicted for CH and dyadic WA; nor did importance of client identity moderate the relationships between within-therapist and within-client CH and dyadic SES. We did find that importance of client identity moderated the relationship between-therapist CH and dyadic SES. Implications for future research will be discussed. Keywords: cultural humility, working alliance, session evaluation, psychodynamic, HLM
Design of a Solar Module Fixture by the TRIZ Methodology
Creators: name: Muehle, J.J.
name: Schrieverhoff, P.
name: Mayer, O.
name: Zettl, M.
Publisher: name: WIP
Year: 2012
Subjects: Components for PV Systems
Balance of System Components

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 3588-3590
description: In the recent years, solar energy has been growing and is still growing steadily throughout
the world. More and more panels are being built. In this paper, it will be analyzed how to develop more
efficient mounting systems while reducing the labor costs by using the TRIZ methods to come up with new
ideas.
Spherical harmonics and integration in superspace
Creators: name: De Bie, Hendrik
name: Sommen, Frank
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In this paper the classical theory of spherical harmonics in R^m is extended to superspace using techniques from Clifford analysis. After defining a super-Laplace operator and studying some basic properties of polynomial null-solutions of this operator, a new type of integration over the supersphere is introduced by exploiting the formal equivalence with an old result of Pizzetti. This integral is then used to prove orthogonality of spherical harmonics of different degree, Green-like theorems and also an extension of the important Funk-Hecke theorem to superspace. Finally, this integration over the supersphere is used to define an integral over the whole superspace and it is proven that this is equivalent with the Berezin integral, thus providing a more sound definition of the Berezin integral.
description: 22 pages, accepted for publication in J. Phys. A
GENOME ASSEMBLY AND COMPARATIVE RNA-SEQ VISUALIZATION OF RED RASPBERRY, RUBUS IDAEUS
Creators: name: Wight, Haley
Publisher: name: Digital Repository at the University of Maryland
Year: 2019
Subjects: subject: Bioinformatics
subject: FOS: Computer and information sciences

description: The red raspberry, Rubus idaeus, is a major commercial fruit valued for its taste and high antioxidant content. Genomic resources are needed to improve research and breeding of this high value crop. Using a hybrid approach of both long and short sequence reads, a de novo genome was assembled consisting of 2,145 scaffolds with a genome completeness of 95.3% and an N50 score of 638 KB. 35,566 protein coding genes were annotated with a transcriptome completeness score of 97.2%. This resource contributes to phylogenetic and comparative studies of the agriculturally valuable Rosaceae family. Comparing the raspberry and strawberry transcriptomes reveal numerous transcription factors, both shared and unique, with roles in meristem regulation. Further, a comparative electronic fluorescent pictograph (eFP) web viewer was constructed to enable visualization of RNA expression patterns of orthologs across Rosaceae species.
Dopant Mapping for Laser Doping Using Secondary Electron Image
Creators: name: Xu, L.
name: Weber, K.J.
name: Phang, S.P.
name: Fell, A.
name: Brink, F.
name: Franklin, E.
Publisher: name: WIP
Year: 2012
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Silicon Solar Cell Characterization and Modelling

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 740-743
description: In recent years, lasers have been widely used in fabrication processes for solar cells. One of the most
promising applications of lasers in solar cell manufacturing is laser doping. Laser doping creates locally doped regions,
such as those required to create selective emitters or locally doped rear-contact structures, via an industrially feasible
manufacturing process. Mapping the dopant distribution of laser doped cross-sections is an effective way to rapidly
qualify laser doping. However, the laser doping line width is only tens of microns, which makes characterization quite
difficult. Until now, such investigation involves expensive and complex methods, for example SIMS and EBIC. This
paper describes a novel cheap method with simple sample preparation to image cross-sectional dopant distribution of
laser doped regions using dopant related contrast observed in secondary electron microscopy (SEM) images. To our
knowledge, this is the first time that this method has been applied on delineating laser doping cross-sections. It is found
that this technique can be used for different dopant sources and different doping methods under relatively wide FESEM
work condition window. This method is proved to be a fast technique to investigate the influence of laser parameters on
laser doping. In conjunction with alkaline etching, we also demonstrate that this method can effectively evaluate the risk
of metallization shunt near the edges of dielectric film windows opened by laser.