cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Determining Free Energy Differences Through Variational Morphing
Creators: name: Reinhardt, Martin
name: Grubmüller, Helmut
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: Free energy calculations based on atomistic Hamiltonians and sampling are key to a first principles understanding of biomolecular processes, material properties, and macromolecular chemistry. Here, we generalize the Free Energy Perturbation method and derive non-linear Hamiltonian transformation sequences for optimal sampling accuracy that differ markedly from established linear transformations. We show that our sequences are also optimal for the Bennett Acceptance Ratio (BAR) method, and our unifying framework generalizes BAR to small sampling sizes and non-Gaussian error distributions. Simulations on a Lennard-Jones gas show that an order of magnitude less sampling is required compared to established methods.
description: 7 pages, 5 figures
Single-Path Mobile AutoML: Efficient ConvNet Design and NAS Hyperparameter Optimization
Creators: name: Stamoulis, Dimitrios
name: Ding, Ruizhou
name: Wang, Di
name: Lymberopoulos, Dimitrios
name: Priyantha, Bodhi
name: Liu, Jie
name: Marculescu, Diana
Publisher: name: arXiv
Year: 2019
Subjects: subject: Machine Learning (cs.LG)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Can we reduce the search cost of Neural Architecture Search (NAS) from days down to only few hours? NAS methods automate the design of Convolutional Networks (ConvNets) under hardware constraints and they have emerged as key components of AutoML frameworks. However, the NAS problem remains challenging due to the combinatorially large design space and the significant search time (at least 200 GPU-hours). In this work, we alleviate the NAS search cost down to less than 3 hours, while achieving state-of-the-art image classification results under mobile latency constraints. We propose a novel differentiable NAS formulation, namely Single-Path NAS, that uses one single-path over-parameterized ConvNet to encode all architectural decisions based on shared convolutional kernel parameters, hence drastically decreasing the search overhead. Single-Path NAS achieves state-of-the-art top-1 ImageNet accuracy (75.62%), hence outperforming existing mobile NAS methods in similar latency settings (~80ms). In particular, we enhance the accuracy-runtime trade-off in differentiable NAS by treating the Squeeze-and-Excitation path as a fully searchable operation with our novel single-path encoding. Our method has an overall cost of only 8 epochs (24 TPU-hours), which is up to 5,000x faster compared to prior work. Moreover, we study how different NAS formulation choices affect the performance of the designed ConvNets. Furthermore, we exploit the efficiency of our method to answer an interesting question: instead of empirically tuning the hyperparameters of the NAS solver (as in prior work), can we automatically find the hyperparameter values that yield the desired accuracy-runtime trade-off? We open-source our entire codebase at: https://github.com/dstamoulis/single-path-nas.
description: Detailed extension (journal) of the Single-Path NAS ECMLPKDD'19 paper (arXiv:1904.02877)
FIDUCEO project: Report on AVHRR aerosol demonstration dataset
Creators: name: Popp, Thomas
Publisher: name: Zenodo
Year: 2019
Subjects: subject: https://id.loc.gov/authorities/subjects/sh85040468.html
subject: https://id.loc.gov/authorities/subjects/sh85084334.html
subject: https://id.loc.gov/authorities/subjects/sh85101653.html

description: This document forms the deliverable D5.8 to report on the climate data record (CDR) over Europe and North Africa of aerosol optical depth (AOD) as retrieved from the AVHRR fundamental climate data record (FCDR) using a simple dark field Algorithm [RD 4]. The primary object of this data record is to assess and demonstrate how the sophisticated uncertainty information contained in the AVHRR easy FCDR dataset be propagated through a retrieval algorithm.
description: Previously curated at: http://cedadocs.ceda.ac.uk/1421/ Main files in this record: D5.8 FIDUCEO_REPORT_AVHRR_aerosol v1.0a[1].docx Item originally deposited with Centre for Environmental Data Analysis (CEDA) document repository by Miss Esther Conway. Transferred to CEDA document repository community on Zenodo on 2022-11-24
A class of large solution of 2D tropical climate model without thermal diffusion
Creators: name: Li, Jinlu
name: Yanghai
name: Yu
Publisher: name: arXiv
Year: 2019
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: In this paper, we consider the Cauchy problem of 2D tropical climate model without thermal diffusion and construct global smooth solutions by choosing a class of special initial data whose $L^{\infty}$ norm can be arbitrarily large.
New Constraints On Cosmic Polarization Rotation Including SPTpol B-mode Polarization Observations
Creators: name: Pan, W. -P.
name: Alighieri, S. di Serego
name: Ni, W. -T.
name: Xu, L.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present an update of the cosmic polarization rotation (CPR) constraint from the recent SPTpol measurements of sub-degree B-mode polarization in the cosmic microwave background (CMB) of 100 square degrees of sky. Our previous CPR fluctuation constraint from the joint ACTpol-BICEP2-POLARBEAR polarization data is 23.7 mrad (1.36°). With new SPTpol data included, the CPR fluctuation constraint is updated to 17 mrad (1°) with the scalar to tensor ratio r = - 0.05 +- 0.1
description: 6 pages, 3 figures, to be published in Proceedings of the Second LeCosPA Symposium "Everything about Gravity" on December 14-18, 2015 in Taipei
A Simple Derivation of AMP and its State Evolution via First-Order Cancellation
Creators: name: Schniter, Philip
Publisher: name: arXiv
Year: 2019
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: We consider the linear regression problem, where the goal is to recover the vector $\boldsymbol{x}\in\mathbb{R}^n$ from measurements $\boldsymbol{y}=\boldsymbol{A}\boldsymbol{x}+\boldsymbol{w}\in\mathbb{R}^m$ under known matrix $\boldsymbol{A}$ and unknown noise $\boldsymbol{w}$. For large i.i.d. sub-Gaussian $\boldsymbol{A}$, the approximate message passing (AMP) algorithm is precisely analyzable through a state-evolution (SE) formalism, which furthermore shows that AMP is Bayes optimal in certain regimes. The rigorous SE proof, however, is long and complicated. And, although the AMP algorithm can be derived as an approximation of loop belief propagation (LBP), this viewpoint provides little insight into why large i.i.d. $\boldsymbol{A}$ matrices are important for AMP, and why AMP has a state evolution. In this work, we provide a heuristic derivation of AMP and its state evolution, based on the idea of "first-order cancellation," that provides insights missing from the LBP derivation while being much shorter than the rigorous SE proof.
MPEC 2024-R62 : 2024 RR1
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 RR1

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Distortion Analysis for the Assessment of LTI and non-LTI Transmitters
Creators: name: Schab, Kurt
name: Singh, Amritpal
name: Bohannon, Nicole
Publisher: name: arXiv
Year: 2019
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Bounds on the frequency domain behavior of electrically small antennas are adapted to assess the time domain distortion or fidelity achievable by simple linear time-invariant (LTI) systems. Rigorous expressions for a TM$_{01}$ spherical shell are used as a direct analog to the well known Chu limit on an antenna's bandwidth-efficiency product. These expressions are shown to agree with results obtained using narrowband single resonance approximations, allowing for the analysis of arbitrary small dipole-like structures through bounds on their single frequency Q-factor and efficiency. The resulting expressions are used as a basis for assessing the performance gains of electrically small non-LTI (e.g., direct antenna modulation) transmitters for which Q-factor and impedance bandwidth are not defined but which can be analyzed directly in the time domain via distortion.
description: 8 pages, 8 figures
Comet 252P/LINEAR: born (almost) dead?
Creators: name: Ye, Quan-Zhi
name: Brown, Peter G.
name: Wiegert, Paul A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Previous studies have revealed Jupiter-family comet 252P/LINEAR as a comet that was recently transported into the near-Earth object (NEO) region in $\sim1800$~AD yet only being weakly active. In this Letter, we examine the "formed (almost) dead" hypothesis for 252P/LINEAR using both dynamical and observational approaches. By statistically examining the dynamical evolution of 252P/LINEAR over a period of $10^7$~years, we find the median elapsed residency in the NEO region to be $4\times10^2$~years which highlights the likelihood of 252P/LINEAR as an (almost) first-time NEO. With available cometary and meteor observations, we find the dust production rate of 252P/LINEAR to be at the order of $10^6$~kg per orbit since its entry to the NEO region. These two lines of evidence support the hypothesis that the comet was likely to have formed in a volatile-poor environment. Cometary and meteor observations during the comet's unprecedented close approach to the Earth around 2016 Mar. 21 would be useful for the understanding of the surface and evolutionary properties of this unique comet.
description: ApJL in press
Distributed Power Control in Interference Channels with QoS Constraints and RF Energy Harvesting: A Game-Theoretic Approach
Creators: name: Chen, He
name: Ma, Yuanye
name: Lin, Zihuai
name: Li, Yonghui
name: Vucetic, Branka
Publisher: name: arXiv
Year: 2016
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: This paper develops a new distributed power control scheme for a power splitting-based interference channel (IFC) with simultaneous wireless information and power transfer (SWIPT). The considered IFC consists of multiple source-destination pairs. Each destination splits its received signal into two parts for information decoding and energy harvesting (EH), respectively. Each pair adjusts its transmit power and power splitting ratio to meet both the signal-to-interference-plus-noise ratio (SINR) and EH constraints at its corresponding destination. To characterize rational behaviors of source-destination pairs, we formulate a non-cooperative game for the considered system, where each pair is modeled as a strategic player who aims to minimize its own transmit power under both SINR and EH constraints at the destination. We derive a sufficient and necessary condition for the existence and uniqueness of the Nash equilibrium (NE) of the formulated game. The best response strategy of each player is derived and then the NE can be achieved iteratively. Numerical results show that the proposed game-theoretic approach can achieve a near-optimal performance under various SINR and EH constraints.
description: Accepted to appear in IEEE Transactions on Vehicular Technology
Diapria (Tropidopria) melanopa Kieffer 1911
Creators: name: Notton, David G.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Chalcididae
Diapria
Diapria melanopa

description: Diapria (Tropidopria) melanopa Kieffer, 1911b: 968.
Valid name
Trichopria subimpressa (Kieffer, 1911).
Summary of types
Lectotype ♀, BMNH number 9.697, designated by Notton (1995). Paralectotypes ♀, ♂.
Primary type data
Mugd./ 26-7; Type; 471.; Cameron Coll./ 1910-55.; melanopa K.; Lectotype ♀ / Diapria Tropidopria / melanopa Kieffer / des. Notton, 1995.
Type locality
Scotland, Mugdock.
Remarks
This species was described from an unspecified number of females and males. The lectotype is mounted on a card and is missing its right mid leg. According to the publication dates on page 1015 of Kieffer (1911b), fascicules 107-8 (including Trichopria subimpressa) predate fascicules 109-110 (including T. melanopa, which is here confirmed to be a junior synonym).
description: Published as part of Notton, David G., 2014, A catalogue of the types of Diapriinae (Hymenoptera, Diapriidae) at the Natural History Museum, London, pp. 1-123 in European Journal of Taxonomy 75 on pages 71-72, DOI: 10.5852/ejt.2014.75, http://zenodo.org/record/3862773
Dual Dynamic Inference: Enabling More Efficient, Adaptive and Controllable Deep Inference
Creators: name: Wang, Yue
name: Shen, Jianghao
name: Hu, Ting-Kuei
name: Xu, Pengfei
name: Nguyen, Tan
name: Baraniuk, Richard
name: Wang, Zhangyang
name: Lin, Yingyan
Publisher: name: arXiv
Year: 2019
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: State-of-the-art convolutional neural networks (CNNs) yield record-breaking predictive performance, yet at the cost of high-energy-consumption inference, that prohibits their widely deployments in resource-constrained Internet of Things (IoT) applications. We propose a dual dynamic inference (DDI) framework that highlights the following aspects: 1) we integrate both input-dependent and resource-dependent dynamic inference mechanisms under a unified framework in order to fit the varying IoT resource requirements in practice. DDI is able to both constantly suppress unnecessary costs for easy samples, and to halt inference for all samples to meet hard resource constraints enforced; 2) we propose a flexible multi-grained learning to skip (MGL2S) approach for input-dependent inference which allows simultaneous layer-wise and channel-wise skipping; 3) we extend DDI to complex CNN backbones such as DenseNet and show that DDI can be applied towards optimizing any specific resource goals including inference latency or energy cost. Extensive experiments demonstrate the superior inference accuracy-resource trade-off achieved by DDI, as well as the flexibility to control such trade-offs compared to existing peer methods. Specifically, DDI can achieve up to 4 times computational savings with the same or even higher accuracy as compared to existing competitive baselines.
Scale heights and equivalent widths of the iron K-shell lines in the Galactic diffuse X-ray emission
Creators: name: Yamauchi, Shigeo
name: Nobukawa, Kumiko K.
name: Nobukawa, Masayoshi
name: Uchiyama, Hideki
name: Koyama, Katsuji
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: This paper reports the analysis of the X-ray spectra of the Galactic diffuse X-ray emission (GDXE) in the Suzaku archive. The fluxes of the Fe I K alpha (6.4 keV), Fe XXV,He alpha (6.7 keV) and Fe XXVI Ly alpha (6.97 keV) lines are separately determined. From the latitude distributions, we confirm that the GDXE is decomposed into the Galactic center (GCXE), the Galactic bulge (GBXE) and the Galactic ridge (GRXE) X-ray emissions. The scale heights (SHs) of the Fe XXV He alpha line of the GCXE, GBXE and GRXE are determined to be ~40, ~310 and ~140 pc, while those of the Fe I K alpha line are ~30, ~160 and ~70 pc, respectively. The mean equivalent widths (EWs) of the sum of the Fe XXV He alpha and Fe XXVI Ly alpha lines are ~750 eV, ~600 eV and ~550 eV, while those of the Fe I K alpha line are ~150~eV, ~60~eV and ~100~eV for the GCXE, GBXE and GRXE, respectively. The origin of the GBXE, GRXE and GCXE is separately discussed based on the new results of the SHs and EWs, in comparison with those of the Cataclysmic Variables (CVs), Active Binaries (ABs) and Coronal Active stars (CAs).
description: Accepted for publication in PASJ
Superconducting phase diagrams of LuB$_{12}$ and Lu$_{1-x}$Zr$_x$B$_{12}$ ($x \le 0.45$) down to 50 mK
Creators: name: Backai, Julius
name: Gabani, Slavomir
name: Flachbart, Karol
name: Gazo, Emil
name: Kusnir, Jan
name: Orendac, Matus
name: Pristas, Gabriel
name: Sluchanko, Nikolay
name: Dukhnenko, Anna
name: Filipov, Volodymyr
name: Shitsevalova, Natalya
Publisher: name: arXiv
Year: 2019
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Lutetium dodecaboride LuB12 is a simple weak-coupling BCS superconductor with critical temperature Tc = 0.42 K, whilst ZrB12 is a strong-coupling BCS superconductor with the highest critical temperature Tc = 6.0 K among this group of materials. In case of lutetium substitution by zirconium ions in LuB12 the crossover from weak- to strong-coupling superconductor can be studied. We have investigated the evolution of critical temperature Tc and critical field Hc in high-quality single crystalline superconducting samples of Lu(1-x)Zr(x)B12 (0 =< x =< 0.45) by measuring magnetic ac susceptibility between 1 K and 50 mK. To obtain this kind of experimental data, a new susceptometer was designed, constructed and tested, which can work in a wide temperature range of 0.05 K - 3 K in 3He-4He dilution refrigerator. The measurements with this new susceptometer revealed how Tc(x) and Hc(x) increases with increasing concentration of zirconium in Lu(1-x)Zr(x)B12 solid solutions as well as how their superconducting phase diagram develops.
description: 6 pages, 4 figures, CSMAG conference contribution
FIDUCEO project: Report on MVIRI Aerosol demonstration dataset
Creators: name: Luffarelli, Marta
name: John, Viju
name: Rüthrich, Frank
name: ovaerts, Yves
Publisher: name: Zenodo
Year: 2019
Subjects: subject: https://id.loc.gov/authorities/subjects/sh85040468.html
subject: https://id.loc.gov/authorities/subjects/sh85084334.html
subject: https://id.loc.gov/authorities/subjects/sh85101653.html

description: This document forms the deliverable D5.8 to report on the climate data record (CDR) of aerosol optical thickness (AOT) as retrieved from the MVIRI fundamental climate data record (FCDR) [RD 1, RD 2, RD 3] using the Combined Inversion of Surface and AeRosol (CISAR) Algorithm [RD 4]. The primary objective of this data record is to assess and demonstrate how the recalibrated and uncertainty-quantified MVIRI FCDR can support improved retrieval of geophysical parameters. Of particular interest is the impact of in-flight reconstructed and spectrally degrading spectral response functions.
description: Previously curated at: http://cedadocs.ceda.ac.uk/1422/ Main files in this record: D5_9 Report on Aerosol and Albedo_VJ[1].docx Item originally deposited with Centre for Environmental Data Analysis (CEDA) document repository by Miss Esther Conway. Transferred to CEDA document repository community on Zenodo on 2022-11-24
Dipodium squamatum R. Br
Creators: name: Li, Ming-He
name: Zhang, Guo-Qiang
name: Liu, Zhong-Jian
name: Lan, Si-Ren
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Asparagales
Orchidaceae
Dipodium
Dipodium squamatum

description: Dipodium squamatum (G.Forst.) R.Br..
 Basionym: Ophrys squamata G.Forst.
 Heterotypic synonym: Dipodium punctatum Brown (1810: 331).
description: Published as part of Li, Ming-He, Zhang, Guo-Qiang, Liu, Zhong-Jian & Lan, Si-Ren, 2016, Subtribal relationships in Cymbidieae (Epidendroideae, Orchidaceae) reveal a new subtribe, Dipodiinae, based on plastid and nuclear coding DNA, pp. 37-48 in Phytotaxa 246 (1) on page 46, DOI: 10.11646/phytotaxa.246.1.3, http://zenodo.org/record/13677093
Repeated Measurements with Minimally Destructive Partial-Transfer Absorption Imaging
Creators: name: Seroka, Erin Marshall
name: Curiel, Ana Valdés
name: Trypogeorgos, Dimitrios
name: Lundblad, Nathan
name: Spielman, Ian B.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We demonstrate partial-transfer absorption imaging as a technique for repeatedly imaging an ultracold atomic ensemble with minimal perturbation. We prepare an atomic cloud in a state that is dark to the imaging light. We then use a microwave pulse to coherently transfer a small fraction of the ensemble to a bright state, which we image using in situ absorption imaging. The amplitude or duration of the microwave pulse controls the fractional transfer from the dark to the bright state. For small transfer fractions, we can image the atomic cloud up to 50 times before it is depleted. As a sample application, we repeatedly image an atomic cloud oscillating in a dipole trap to measure the trap frequency.
description: 12 pages, 7 figures
FIDUCEO project MVIRI Aerosol and Albedo release note
Creators: name: John, Viju
name: Rüthrich, Frank
Publisher: name: Zenodo
Year: 2019
Subjects: subject: https://id.loc.gov/authorities/subjects/sh85040468.html
subject: https://id.loc.gov/authorities/subjects/sh85084334.html
subject: https://id.loc.gov/authorities/subjects/sh85101653.html

description: Release note on dataset
description: Previously curated at: http://cedadocs.ceda.ac.uk/1423/ Main files in this record: D5_6 RN_011_FIDUCEO_release_notes_Aerosol and Albedo_CDR.docx Item originally deposited with Centre for Environmental Data Analysis (CEDA) document repository by Miss Esther Conway. Transferred to CEDA document repository community on Zenodo on 2022-11-24
FIDUCEO project: FCDR/FCDR Writer/Reader software report
Creators: name: Block, Tom
name: Embacher, Sabine
Publisher: name: Zenodo
Year: 2019
Subjects: subject: https://id.loc.gov/authorities/subjects/sh85040468.html
subject: https://id.loc.gov/authorities/subjects/sh85084334.html
subject: https://id.loc.gov/authorities/subjects/sh85101653.html

description: This document describes the usage of the FIDUCEO tools for reading and writing CDR and FCDR data files. This set of tools is programmed in Python and has been tested using Python versions 3.5 and 3.6 on Linux and Windows operating systems. The software is available at Github (https://github.com/FIDUCEO/FCDRTools/releases/tag/2_0_1_RELEASE)
description: Previously curated at: http://cedadocs.ceda.ac.uk/1424/ Main files in this record: CDR_FCDR_Writer_Reader_Usage_v2_0_1.pdf Item originally deposited with Centre for Environmental Data Analysis (CEDA) document repository by Miss Esther Conway. Transferred to CEDA document repository community on Zenodo on 2022-11-24
Figure S3. from Winter conditions, not resource availability alone, may drive reversible seasonal skull size changes in moles
Creators: name: Nováková, Lucie
name: Lázaro, Javier
name: Muturi, Marion
name: Dullin, Christian
name: Dechmann, Dina K. N.
Publisher: name: The Royal Society
Year: 2022
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences

description: Plots of absolute measurements.
FIDUCEO release not HIRS FCDR
Creators: name: Mittaz, Jin
Publisher: name: Zenodo
Year: 2019
Subjects: subject: https://id.loc.gov/authorities/subjects/sh85040468.html
subject: https://id.loc.gov/authorities/subjects/sh85084334.html
subject: https://id.loc.gov/authorities/subjects/sh85101653.html

description: FIDUCEO release not HIRS FCDR
description: Previously curated at: http://cedadocs.ceda.ac.uk/1425/ Main files in this record: RN_018_FIDUCEO_Release_Notes_HIRS_FCDR.docx Item originally deposited with Centre for Environmental Data Analysis (CEDA) document repository by Miss Esther Conway. Transferred to CEDA document repository community on Zenodo on 2022-11-24
Figure S1. from Winter conditions, not resource availability alone, may drive reversible seasonal skull size changes in moles
Creators: name: Nováková, Lucie
name: Lázaro, Javier
name: Muturi, Marion
name: Dullin, Christian
name: Dechmann, Dina K. N.
Publisher: name: The Royal Society
Year: 2022
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences

description: Selected skulls of Talpa europaea from MRI-PAS.
UK Met Office operational assimilated data: NetCDF metadata change
Creators: name: Unknown
Publisher: name: Zenodo
Year: 2017
Subjects: subject: https://id.loc.gov/authorities/subjects/sh2018002590.html
subject: https://id.loc.gov/authorities/subjects/sh85084334.html

description: This document describes an update to the UK Met Office assimilated data metadata structure. On the 11th July 2017 the Met Office upgraded their global model from which these data are taken, this necessitated a change in the conversion from native Unified Model pp files to NetCDF. This document details these changes.
description: Previously curated at: http://cedadocs.ceda.ac.uk/1331/ Main files in this record: ukmo-assim_netcdf_metadata_update_20170816.pdf Item originally deposited with Centre for Environmental Data Analysis (CEDA) document repository by Miss Kate Winfield. Transferred to CEDA document repository community on Zenodo on 2022-11-24
A machine learning assessment of the two states model for lipid bilayer phase transitions
Creators: name: Walter, Viven
name: Ruscher, Céline
name: Benzerara, Olivier
name: Marques, Carlos M.
name: Thalmann, Fabrice
Publisher: name: arXiv
Year: 2019
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We have adapted a set of classification algorithms, also known as Machine Learning, to the identification of fluid and gel domains close to the main transition of dipalmitoyl-phosphatidylcholine (DPPC) bilayers. Using atomistic molecular dynamics conformations in the low and high temperature phases as learning sets, the algorithm was trained to categorize individual lipid configurations as fluid or gel, in relation with the usual two-states phenomenological description of the lipid melting transition. We demonstrate that our machine can learn and sort lipids according to their most likely state without prior assumption regarding the nature of the order parameter of the transition. Results from our machine learning approach provides strong support in favor of a two-states model approach of membrane fluidity.
Table S2. from Winter conditions, not resource availability alone, may drive reversible seasonal skull size changes in moles
Creators: name: Nováková, Lucie
name: Lázaro, Javier
name: Muturi, Marion
name: Dullin, Christian
name: Dechmann, Dina K. N.
Publisher: name: The Royal Society
Year: 2022
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences

description: Measurement error. We selected 10 mole skulls which were repeatedly measured (five times) by each observer. Table shows the measurement error as % of the mean standard deviation for each measurement. Abbreviations: MM = Marion Muturi, LN = Lucie Nováková; skull length (SKL), braincase height (SKH), braincase width (SKB), length of mandible (ML) and length of molar tooth row (MTR).
Basic trigonometric power sums with applications
Creators: name: da Fonseca, Carlos M.
name: Glasser, M. Lawrence
name: Kowalenko, Victor
Publisher: name: arXiv
Year: 2016
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 33B10, 05A15, 11B65

description: We present the transformation of several sums of positive integer powers of the sine and cosine into non-trigonometric combinatorial forms. The results are applied to the derivation of generating functions and to the number of the closed walks on a path and in a cycle.
Release note Aerosol Optical Depth AVHRR CDR
Creators: name: Popp, Thomas
Publisher: name: Zenodo
Year: 2019
Subjects: subject: https://id.loc.gov/authorities/subjects/sh85040468.html
subject: https://id.loc.gov/authorities/subjects/sh85084334.html
subject: https://id.loc.gov/authorities/subjects/sh85101653.html

description: Release note Aerosol Optical Depth AVHRR CDR
description: Previously curated at: http://cedadocs.ceda.ac.uk/1426/ Main files in this record: Release Note AVHRR CDR AOD_v2.1[1].docx Item originally deposited with Centre for Environmental Data Analysis (CEDA) document repository by Miss Esther Conway. Transferred to CEDA document repository community on Zenodo on 2022-11-24
Improving Students' Understanding of Quantum Mechanics via the Stern-Gerlach Experiment
Creators: name: Zhu, Guangtian
name: Singh, Chandralekha
Publisher: name: arXiv
Year: 2016
Subjects: subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: The Stern-Gerlach experiment has played a central role in the discovery of spin angular momentum. It can also play a pivotal role in teaching the formalism of quantum mechanics using a concrete example involving a finite-dimensional Hilbert space. Using this context, students can learn about how to prepare a specific quantum state starting from an arbitrary state, issues related to the time evolution of the wave function, and quantum measurement. It can also be exploited to teach students about the distinction between the physical space where one performs the experiment and the Hilbert space where the state of the system lies and how the information about the state of the system in the Hilbert space can be exploited to interpret the possible outcomes of the experiment in the physical space. Students can learn the advantages of choosing an appropriate basis to make suitable predictions about the outcomes of experiments with different arrangements of Stern-Gerlach devices. This experiment can also help students understand that an ensemble of identically prepared systems, e.g., one in a linear superposition of two stationary states, is not the same as a mixture, e.g., in which half of the systems are in one stationary state and the other half are in the other stationary state. Here, we discuss investigation of students' difficulties about the Stern-Gerlach experiment by giving written tests and interviewing advanced undergraduate and graduate students in quantum mechanics courses. We also discuss preliminary data from two quantum mechanics courses that suggest that a Quantum Interactive Learning Tutorial (QuILT) related to the Stern-Gerlach experiment is helpful in improving students' understanding of these concepts.
description: 9 pages, PACS: 01.40Fk,01.40.gb,01.40G-,1.30.Rr
Deep Graph-Convolutional Image Denoising
Creators: name: Valsesia, Diego
name: Fracastoro, Giulia
name: Magli, Enrico
Publisher: name: arXiv
Year: 2019
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: Multimedia (cs.MM)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Non-local self-similarity is well-known to be an effective prior for the image denoising problem. However, little work has been done to incorporate it in convolutional neural networks, which surpass non-local model-based methods despite only exploiting local information. In this paper, we propose a novel end-to-end trainable neural network architecture employing layers based on graph convolution operations, thereby creating neurons with non-local receptive fields. The graph convolution operation generalizes the classic convolution to arbitrary graphs. In this work, the graph is dynamically computed from similarities among the hidden features of the network, so that the powerful representation learning capabilities of the network are exploited to uncover self-similar patterns. We introduce a lightweight Edge-Conditioned Convolution which addresses vanishing gradient and over-parameterization issues of this particular graph convolution. Extensive experiments show state-of-the-art performance with improved qualitative and quantitative results on both synthetic Gaussian noise and real noise.
Two-atom interaction energies with one atom in an excited state: van der Waals potentials vs. level shifts
Creators: name: Donaire, Manuel
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: I revisit the problem of the interaction between two dissimilar atoms with one atom in an excited state, recently addressed by the authors of Refs.[1-3], and for which precedent approaches have given conflicting results. In the first place, I discuss to what extent Refs.[1], [2] and [3] provide equivalent results. I show that the phase-shift rate of the two-atom wave function computed in Ref.[1], the van der Waals potential of the excited atom in Ref.[2] and the level shift of the excited atom in Ref.[3] possess equivalent expressions in the quasistationary approximation. In addition, I show that the level shift of the ground state atom computed in Ref.[3] is equivalent to its van der Waals potential. A diagrammatic representation of all those quantities is provided. The equivalences among them are however not generic. In particular, it is found that for the case of the interaction between two identical atoms excited, the phase-shift rate and the van der Waals potentials differ. Concerning the conflicting results of previous approaches in regards to the spatial oscillation of the interactions, I conclude in agreement with Refs.[1,3] that they refer to different physical quantities. The impacts of free-space dissipation and finite excitation rates on the dynamics of the potentials are analyzed. In contrast to Ref.[3], the oscillatory versus monotonic spatial forms of the potentials of each atom are found not to be related to the reversible versus irreversible nature of the excitation transfer involved.
description: 11 pages, 5 figures
FIDUCEO project microwave FCDR release note
Creators: name: Hans, Imke
Publisher: name: Zenodo
Year: 2019
Subjects: subject: https://id.loc.gov/authorities/subjects/sh85040468.html
subject: https://id.loc.gov/authorities/subjects/sh85084334.html
subject: https://id.loc.gov/authorities/subjects/sh85101653.html

description: FIDUCEO project microwave FCDR release note
description: Previously curated at: http://cedadocs.ceda.ac.uk/1427/ Main files in this record: D4_3 RN_008_FIDUCEO_Release_Notes_MW_FCDR.pdf Item originally deposited with Centre for Environmental Data Analysis (CEDA) document repository by Miss Esther Conway. Transferred to CEDA document repository community on Zenodo on 2022-11-24
Table S3. from Winter conditions, not resource availability alone, may drive reversible seasonal skull size changes in moles
Creators: name: Nováková, Lucie
name: Lázaro, Javier
name: Muturi, Marion
name: Dullin, Christian
name: Dechmann, Dina K. N.
Publisher: name: The Royal Society
Year: 2022
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences

description: Results (p values) of t-test comparison of Talpa europaea braincase height between months with pooled age groups. We did not have any specimens from February.
FIDUCEO project Upper Tropospheric Humidity CDR release note
Creators: name: Lang, Theresa
Publisher: name: Zenodo
Year: 2019
Subjects: subject: https://id.loc.gov/authorities/subjects/sh85040468.html
subject: https://id.loc.gov/authorities/subjects/sh85084334.html
subject: https://id.loc.gov/authorities/subjects/sh85101653.html

description: FIDUCEO project Upper Tropospheric Humidity CDR release note
description: Previously curated at: http://cedadocs.ceda.ac.uk/1430/ Main files in this record: D5_3 RN_009_Release_Notes_UTH_CDR_V1_2.pdf Item originally deposited with Centre for Environmental Data Analysis (CEDA) document repository by Miss Esther Conway. Transferred to CEDA document repository community on Zenodo on 2022-11-24
Transverse magnetic field influence on wakefield in complex plasmas
Creators: name: Sundar, Sita
name: Moldabekov, Zhandos A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: We present the results of an investigation of the wakefield around a stationary charged grain in an external magnetic field with non-zero transverse component with respect to the ion flow direction. The impact of the orientation of magnetic field on the wake behavior in streaming complex plasmas is assessed. In contrast to previously reported significant suppression of the wake oscillations due to longitudinal magnetic field applied along flow, in the presence of transverse to flow magnetic field the wakefield exhibits a long range recurrent oscillations. Extensive investigation for a wide range of parameters reveal that in the sonic and supersonic regimes the wake has strong dependence on the direction of the magnetic field and exhibits sensitivity to even a meager deviation of magnetic field from the longitudinal orientation. The tool obtained with the study of impact of transverse component of magnetic field on the wake around grain in streaming ions can be used to potentially maneuver the grain-grain interaction to achieve controlled grain dynamics.
description: PIC, complex plasma, dust in streaming magnetized ions, monte-carlo, dusty plasmas
The f.c.c. crystals of hard spheres with an array of [001]-nanochannel inclusions filled by the simplest hard sphere molecules
Creators: name: Narojczyk, Jakub
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In this work the systems composed of particles interacting with hard potential are investigated. These systems feature certain modifications to the crystal structure - selected particles are replaced with ones that differ slightly in their diameters. Such modifications, which can be thought of as "inclusions", concern particles located in cylindrical nanochannels, oriented in [001] direction. In this study, for the first time, additional constrains have been imposed on the particles forming the inclusions. Namely, the replaced spheres have been randomly grouped into neighbouring pairs which were connected to form simple, di-atomic molecules. The results have been compared with previously investigated systems with similar inclusions but without the connections, i.e. filled only by spheres. The comparison of elastic properties between these systems is presented. It is shown that inclusions filled with dimers have different impact on the values of elastic compliances. It has been demonstrated that by introducing a small number of molecules made of spheres whose diameters differ from the rest of the particles forming the crystal, one is able to modify the hardness and shear resistance of the f.c.c. crystal without changing the Poisson's ratio (with respect to the analogous system without additional constrains imposed on the inclusion particles).
description: 9 pages, 4 figures
(py)LIon: a package for simulating trapped ion trajectories
Creators: name: Bentine, E.
name: Foot, C. J.
name: Trypogeorgos, D.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Atomic Physics (physics.atom-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The (py)LIon package is a set of tools to simulate the classical trajectories of ensembles of ions in electrodynamic traps. Molecular dynamics simulations are performed using LAMMPS, an efficient and feature-rich program. (py)LIon has been validated by comparison with the analytic theory describing ion trap dynamics. Notable features include GPU-accelerated force calculations, and treating collections of ions as rigid bodies to enable investigations of the rotational dynamics of large, mesoscopic charged particles.
description: 11 pages, 9 figures
FIDUCEO project: AVHRR FCDR release note
Creators: name: Mittaz, Jon
Publisher: name: Zenodo
Year: 2019
Subjects: subject: https://id.loc.gov/authorities/subjects/sh85040468.html
subject: https://id.loc.gov/authorities/subjects/sh85084334.html
subject: https://id.loc.gov/authorities/subjects/sh85101653.html

description: FIDUCEO project: AVHRR FCDR release note
description: Previously curated at: http://cedadocs.ceda.ac.uk/1432/ Main files in this record: RN_016_FIDUCEO_Release Note_AVHRR_FCDR.docx Item originally deposited with Centre for Environmental Data Analysis (CEDA) document repository by Miss Esther Conway. Transferred to CEDA document repository community on Zenodo on 2022-11-24
DeepCABAC: A Universal Compression Algorithm for Deep Neural Networks
Creators: name: Wiedemann, Simon
name: Kirchoffer, Heiner
name: Matlage, Stefan
name: Haase, Paul
name: Marban, Arturo
name: Marinc, Talmaj
name: Neumann, David
name: Nguyen, Tung
name: Osman, Ahmed
name: Marpe, Detlev
name: Schwarz, Heiko
name: Wiegand, Thomas
name: Samek, Wojciech
Publisher: name: arXiv
Year: 2019
Subjects: subject: Machine Learning (cs.LG)
subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: The field of video compression has developed some of the most sophisticated and efficient compression algorithms known in the literature, enabling very high compressibility for little loss of information. Whilst some of these techniques are domain specific, many of their underlying principles are universal in that they can be adapted and applied for compressing different types of data. In this work we present DeepCABAC, a compression algorithm for deep neural networks that is based on one of the state-of-the-art video coding techniques. Concretely, it applies a Context-based Adaptive Binary Arithmetic Coder (CABAC) to the network's parameters, which was originally designed for the H.264/AVC video coding standard and became the state-of-the-art for lossless compression. Moreover, DeepCABAC employs a novel quantization scheme that minimizes the rate-distortion function while simultaneously taking the impact of quantization onto the accuracy of the network into account. Experimental results show that DeepCABAC consistently attains higher compression rates than previously proposed coding techniques for neural network compression. For instance, it is able to compress the VGG16 ImageNet model by x63.6 with no loss of accuracy, thus being able to represent the entire network with merely 8.7MB. The source code for encoding and decoding can be found at https://github.com/fraunhoferhhi/DeepCABAC.
FIDUCEO project: HIRS FCDR release note
Creators: name: Mittaz, Jon
Publisher: name: Zenodo
Year: 2019
Subjects: subject: https://id.loc.gov/authorities/subjects/sh85040468.html
subject: https://id.loc.gov/authorities/subjects/sh85084334.html
subject: https://id.loc.gov/authorities/subjects/sh85101653.html

description: FIDUCEO project: HIRS FCDR release note
description: Previously curated at: http://cedadocs.ceda.ac.uk/1433/ Main files in this record: RN_018_FIDUCEO_Release_Notes_HIRS_FCDR-2.docx RN_018_FIDUCEO_Release_Notes_HIRS_FCDR-2.docx Item originally deposited with Centre for Environmental Data Analysis (CEDA) document repository by Miss Esther Conway. Transferred to CEDA document repository community on Zenodo on 2022-11-24
Single-Exciton Gain and Stimulated Emission Across the Infrared Optical Telecom Band from Robust Heavily-doped PbS Colloidal Quantum Dots
Creators: name: Christodoulou, Sotirios
name: Ramiro, Iñigo
name: Othonos, Andreas
name: Figueroba, Alberto
name: Dalmases, Mariona
name: Özdemir, Onur
name: Pradhan, Santanu
name: Itskos, Grigorios
name: Konstantatos, Gerasimos
Publisher: name: arXiv
Year: 2019
Subjects: subject: Applied Physics (physics.app-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Materials with optical gain in the infrared are of paramount importance for optical communications, medical diagnostics1 and silicon photonics2,3 . The current technology is based either on costly III-V semiconductors that are not monolithic to silicon CMOS technology or Er-doped fiber technology that does not make use of the full fiber transparency window. Colloidal quantum dots (CQD) offer a unique opportunity as an optical gain medium4 in view of their tunable bandgap, solution processability and CMOS compatibility. Their potential for narrower linewidths5 and the lower-than-bulk degeneracy6 has led to dramatic progress towards successful demonstration of optical gain4, stimulated emission7 and lasing8,9,10 in the visible part of spectrum utilizing CdSe-based CQDs. Infrared Pb-chalcogenide colloidal quantum dots however exhibit higher state degeneracy and as a result the demonstration of optical gain has imposed very high thresholds.11,12 Here we demonstrate room-temperature, infrared stimulated emission, tunable across the optical communication band, based on robust electronically doped PbS CQDs, that reach gain threshold at the single exciton regime, representing a four-fold reduction from the theoretical limit of an eight-fold degenerate system and two orders of magnitude lower than prior reports.
FIDUCEO project: AVHRR Ensemble FCDR release note
Creators: name: Bulgin, Claire
Publisher: name: Zenodo
Year: 2019
Subjects: subject: https://id.loc.gov/authorities/subjects/sh85040468.html
subject: https://id.loc.gov/authorities/subjects/sh85084334.html
subject: https://id.loc.gov/authorities/subjects/sh85101653.html

description: FIDUCEO project: AVHRR Ensemble FCDR release note
description: Previously curated at: http://cedadocs.ceda.ac.uk/1434/ Main files in this record: D4_5 RN_017 - FIDUCEO_release_note_Ensemble_FCDR-1.docx Item originally deposited with Centre for Environmental Data Analysis (CEDA) document repository by Miss Esther Conway. Transferred to CEDA document repository community on Zenodo on 2022-11-24
Hadron Physics from Lattice QCD
Creators: name: Bietenholz, Wolfgang
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We sketch the basic ideas of the lattice regularization in Quantum Field Theory, the corresponding Monte Carlo simulations, and applications to Quantum Chromodynamics (QCD). This approach enables the numerical measurement of observables at the non-perturbative level. We comment on selected results, with a focus on hadron masses and the link to Chiral Perturbation Theory. At last we address two outstanding issues: topological freezing and the sign problem.
description: 30 pages, LaTex, 11 figures, invited contribution to a Focus-Issue of World Scientific entitled "Modern Topics on non-perturbative QCD: Theory and Experiment"
FIDUCEO Project: File format Specification for CDRs and FCDRs V2.0
Creators: name: Block, Tom
name: Embacher, Sabine
Publisher: name: Zenodo
Year: 2018
Subjects: subject: https://id.loc.gov/authorities/subjects/sh85040468.html
subject: https://id.loc.gov/authorities/subjects/sh85084334.html
subject: https://id.loc.gov/authorities/subjects/sh85101653.html

description: FIDUCEO Project: File format Specification for CDRs and FCDRs V2.0
description: Previously curated at: http://cedadocs.ceda.ac.uk/1435/ Main files in this record: D3_2 CDR_FCDR_File_Format_Specification_v2_0_0.pdf Item originally deposited with Centre for Environmental Data Analysis (CEDA) document repository by Miss Esther Conway. Transferred to CEDA document repository community on Zenodo on 2022-11-24