cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Capacity Analysis for Spatially Non-wide Sense Stationary Uplink Massive MIMO Systems
Creators: name: Li, Xueru
name: Zhou, Shidong
name: Björnson, Emil
name: Wang, Jing
Publisher: name: arXiv
Year: 2016
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Channel measurements show that significant spatially non-wide-sense-stationary characteristics rise in massive MIMO channels. Notable parameter variations are experienced along the base station array, such as the average received energy at each antenna, and the directions of arrival of signals impinging on different parts of the array. In this paper, a new channel model is proposed to describe this spatial non-stationarity in massive MIMO channels by incorporating the concepts of partially visible clusters and wholly visible clusters. Furthermore, a closed-form expression of an upper bound on the ergodic sum capacity is derived for the new model, and the influence of the spatial non-stationarity on the sum capacity is analyzed. Analysis shows that for non-identically-and-independent-distributed (i.i.d.) Rayleigh fading channels, the non-stationarity benefits the sum capacity by bringing a more even spread of channel eigenvalues. Specifically, more partially visible clusters, smaller cluster visibility regions and a larger antenna array can all help to yield a well-conditioned channel, and benefit the sum capacity. This shows the advantage of using a large antenna array in a non-i.i.d. channel: the sum capacity benefits not only from a higher array gain, but also from a more spatially non-stationary channel. Numerical results demonstrate our analysis and the tightness of the upper bound.
description: 12 pages, 9 figures; accepted by IEEE Trans. Wireless Commun
The $Spitzer$ infrared spectrograph survey of protoplanetary disks in Orion A: I. disk properties
Creators: name: Kim, K. H.
name: Watson, Dan M.
name: Manoj, P.
name: Forrest, W. J.
name: Furlan, Elise
name: Najita, Joan
name: Sargent, Benjamin
name: Hernández, Jesús
name: Calvet, Nuria
name: Adame, Lucía
name: Espaillat, Catherine
name: Megeath, S. T.
name: Muzerolle, James
name: McClure, M. K.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present our investigation of 319 Class II objects in Orion A observed by $Spitzer$/IRS. We also present the follow-up observation of 120 of these Class II objects in Orion A from IRTF/SpeX. We measure continuum spectral indices, equivalent widths, and integrated fluxes that pertain to disk structure and dust composition from IRS spectra of Class II objects in Orion A. We estimate mass accretion rates using hydrogen recombination lines in the SpeX spectra of our targets. Utilizing these properties, we compare the distributions of the disk and dust properties of Orion A disks to those of Taurus disks with respect to position within Orion A (ONC and L1641) and to the sub-groups by the inferred radial structures, such as transitional disks vs. radially continuous full disks. Our main findings are as follows. (1) Inner disks evolve faster than the outer disks. (2) Mass accretion rate of transitional disks and that of radially continuous full disks are statistically significantly displaced from each other. The median mass accretion rate of radially continuous disks in ONC and L1641 is not very different from that in Taurus. (3) Less grain processing has occurred in the disks in ONC compared to those in Taurus, based on analysis of the shape index of the 10 $μ$m silicate feature ($F_{11.3}/F_{9.8}$). (4) The 20-31 $μ$m continuum spectral index tracks the projected distance from the most luminous Trapezium star, $θ^{1}$ Ori C. A possible explanation is the effect of UV ablation of the outer part of the disks.
description: 152 pages, 28 figures, 11 tables
Robust Design of Transmit Waveform and Receive Filter For Colocated MIMO Radar
Creators: name: Zhu, Wei
name: Tang, Jun
Publisher: name: arXiv
Year: 2015
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: We consider the problem of angle-robust joint transmit waveform and receive filter design for colocated Multiple-Input Multiple-Output (MIMO) radar, in the presence of signal-dependent interferences. The design problem is cast as a max-min optimization problem to maximize the worst-case output signal-to-interference-plus-noise-ratio (SINR) with respect to the unknown angle of the target of interest. Based on rank-one relaxation and semi-definite programming (SDP) representation of a nonnegative trigonometric polynomial, a cyclic optimization algorithm is proposed to tackle this problem. The effectiveness of the proposed method is illustrated via numerical examples.
description: 6 pages, 13 figures, part of this work was submitted to IEEE Signal Processing Letters; (short introduction; typos corrected; revised statement in section III-B and IV; revised figure labels)
Trouble Shooting Mendeley
Creators: name: Faizal Risdianto
Publisher: name: Zenodo
Year: 2020
Subjects: trouble shooting mendeley, mendeley, cara install mendeley plug in di ms word

description: Sering terjadi Mendeley sulit di install di ms word karena versi Mendeley yang mutakhir sementara ms wordnya versi lama seperti windows 2003 atau 2006. solusinya bisa diupgrade ms wordnya ke versi yang mutakhir dan bisa jadi kendala install Mendeley di ms word itu terjadi karena windowsnya bajakan. :D d^^b atau bisa juga menurunkan versi aplikasi Mendeley nya.
NERC-ARSF-DAN Hyperspectral data quality report 2015.
Creators: name: Warren, Mark
name: Clewley, Daniel
name: Harris, Laura
name: Taylor, Ben
name: Llewellyn, Gary
name: Maclellan, Chris
name: Goult, Stephen
name: Mata, Aser
name: Grant, Mike
name: Groom, Steve
Publisher: name: Zenodo
Year: 2016
Subjects: subject: data and information
subject: https://id.loc.gov/authorities/subjects/sh85081263.html
subject: https://id.loc.gov/authorities/subjects/sh2018002590.html
subject: https://id.loc.gov/authorities/subjects/sh85040468.html

description: The Airborne Research and Survey Facility (ARSF) collect hyperspectral data with a Specim AISA Fenix instrument, operated since 2014. The Fenix instrument comprises two detectors covering the Visible to Near Infra-Red (VNIR) and Short Wave Infra-Red (SWIR) regions, giving a total spectral range of 380–2500 nm. This data quality report describes issues for hyperspectral data acquired with the Fenix instrument that should be considered when further processing any ARSF datasets acquired from 31 August 2014 until the end of 2015.
description: Previously curated at: http://cedadocs.ceda.ac.uk/1293/ The publish date on this item was its original completed date. Main files in this record: hyperspectral_data_quality_report2015_final.pdf Item originally deposited with Centre for Environmental Data Analysis (CEDA) document repository by Dr M Warren. Transferred to CEDA document repository community on Zenodo on 2022-11-24
Shape Bifurcation of a Spherical Dielectric Elastomer Balloon under the Actions of Internal Pressure and Electric Voltage
Creators: name: Liang, Xudong
name: Cai, Shengqiang
Publisher: name: arXiv
Year: 2015
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Under the actions of internal pressure and electric voltage, a spherical dielectric elastomer balloon usually keeps a sphere during its deformation, which has also been assumed in many previous studies. In this article, using linear perturbation analysis, we demonstrate that a spherical dielectric elastomer balloon may bifurcate to a non-spherical shape under certain electromechanical loading conditions. We also show that with a non-spherical shape, the dielectric elastomer balloon may have highly inhomogeneous electric field and stress/stretch distributions, which can lead to the failure of the system. In addition, we conduct stability analysis of the dielectric elastomer balloon in different equilibrium configurations by evaluating its second variation of free energy under arbitrary perturbations. Our analyses indicate that under pressure-control and voltage-control mode, non-spherical deformation of the dielectric elastomer balloon is energetically unstable. However, under charge-control or ideal gas mass-control mode, non-spherical deformation of the balloon is energetically stable.
Mendeley Troubleshooting: Mengatasi Gaya Selingkung Sitasi
Creators: name: Istiqlal, Muhammad
Publisher: name: Zenodo
Year: 2020

description: Kasus Kampus atau jurnal memiliki gaya selingkung yang khas. Contoh di IAIN Salatiga, format penulisan sitasi di skripsi sebagai berikut: (Nama belakang penulis, Tahun: hal) (Solikah dan Himmah, 2019: 23) Citation Style yang mendekati dalam Mendeley adalah American Sociological Association (Solikah and Himmah, 2019:23)
Interferometric mapping of magnetic fields: The ALMA view of the massive star forming clump W43-MM1
Creators: name: Cortes, Paulo C.
name: Girart, Josep M.
name: Hull, Charles
name: Sridharan, Tirupati K.
name: Louvet, Fabien
name: Plambeck, Richard
name: Li, Zhi-Yun
name: Crutcher, Richard M.
name: Lai, Shih-Ping
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Here we present the first results from ALMA observations of 1 mm polarized dust emission towards the W43-MM1 high mass star forming clump. We have detected a highly fragmented filament with source masses ranging from 14Msun to 312Msun, where the largest fragment, source A, is believed to be one of the most massive in our Galaxy. We found a smooth, ordered, and detailed polarization pattern throughout the filament which we used to derived magnetic field morphologies and strengths for 12 out of the 15 fragments detected ranging from 0.2 to 9 mG. The dynamical equilibrium of each fragment was evaluated finding that all the fragments are in a super-critical state which is consistent with previously detected infalling motions towards W43-MM1. Moreover, there are indications suggesting that the field is being dragged by gravity as the whole filament is collapsing.
description: Accepted for publication is Astrophysical Journal Letters
Subwavelength metal grating metamaterial for polarization selective optical antireflection coating
Creators: name: Kim, Wonkyu
name: Guo, Junpeng
name: Hendrickson, Joshua
Publisher: name: arXiv
Year: 2015
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: A metamaterial structure consisting of a one-dimensional metal/air-gap subwavelength grating is investigated for optical antireflection coating on germanium substrate in the infrared regime. For incident light polarized perpendicularly to the grating lines, the metamaterial exhibits effective dielectric property and Fabry-Perot like plasmon-coupled optical resonance results in complete elimination of reflection and enhancement of transmission. It is found that the subwavelength grating metamaterial antireflection structure does not require a deep subwavelength grating period, which is advantageous for device fabrication. Maximal transmittance of 93.4% with complete elimination of reflection is seen in the mid-wave infrared range.
description: 6 pages, 11 figures
Sprekelia formosissima Herb.
Creators: name: Jarvis, Charlie
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Asparagales
Amaryllidaceae
Sprekelia
Sprekelia formosissima

description: Amaryllis formosissima Linnaeus, Species Plantarum 1: 293. 1753. "Habitat in America meridionali." RCN: 2333. Type not designated. Original material: Herb. Linn. No. 416.4 (LINN); [icon] in Dillenius, Hort. Eltham. 1: 195, t. 162, f. 196. 1732; [icon] in Linnaeus in Kongl. Swenska Wetensk. Acad. Handl. 3: 93, t. 6. 1742; [icon] in Rudbeck, Campi Elysii 2: 89, f. 10. 1701. Current name:  Sprekelia formosissima (L.) Herb. (Liliaceae / Amaryllidaceae).
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part A), pp. 252-342 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 285, DOI: 10.5281/zenodo.291971
What you know or who you know? The role of intellectual and social capital in opportunity recognition
Creators: name: Ramos-Rodriguez, Antonio Rafael
name: Medina-Garrido, Jose Aurelio
name: Lorenzo-Gomez, Jose Daniel
name: Ruiz-Navarro, Jose
Publisher: name: arXiv
Year: 2024
Subjects: subject: General Economics (econ.GN)
subject: FOS: Economics and business

description: The recognition of business opportunities is the first stage in the entrepreneurial process. The current work analyzes the effects of individuals' possession of and access to knowledge on the probability of recognizing good business opportunities in their area of residence. The authors use an eclectic theoretical framework consisting of intellectual and social capital concepts. In particular, they analyze the role of individuals' educational level, their perception that they have the right knowledge and skills to start a business, whether they own and manage a firm, their contacts with other entrepreneurs, and whether they have been business angels. The hypotheses proposed here are tested using data collected for the GEM project in Spain in 2007. The results show that individuals' access to external knowledge through the social networks in which they participate is fundamental for developing the capacity to recognize new business opportunities.
NERC-ARSF-DAN Thermal Hyperspectral data quality report 2015
Creators: name: Harris, Laura J
name: Warren, Mark
name: Clewley, Daniel
name: Taylor, Ben
name: Llewellyn, Gary
name: Maclellan, Chris
name: Mata, Aser
name: Goult, Stephen
name: Grant, Mike
name: Groom, Steve
Publisher: name: Zenodo
Year: 2016
Subjects: subject: data and information
subject: https://id.loc.gov/authorities/subjects/sh85081263.html
subject: https://id.loc.gov/authorities/subjects/sh2018002590.html
subject: https://id.loc.gov/authorities/subjects/sh85040468.html

description: The Airborne Research and Survey Facility (ARSF) collect thermal data with a Specim AISA Owl instrument, operated since 2014. The Owl instrument covers wavelengths from 7.6 – 12.3 μm. A pair of black bodies, which are mechanically moved in front of the sensor lens one by one, are used for calibration. This data quality report describes issues for thermal data acquired with the Owl instrument that should be considered when further processing any ARSF datasets acquired in 2015.
description: Previously curated at: http://cedadocs.ceda.ac.uk/1294/ The publish date on this item was its original submitted date. Main files in this record: NERC-ARSF-DAN_Thermal_Hyperspectral_Data_Quality_Report_2015.pdf Item originally deposited with Centre for Environmental Data Analysis (CEDA) document repository by Miss Laura J Harris. Transferred to CEDA document repository community on Zenodo on 2022-11-24
Study on differences between high contrast grating reflectors for TM and TE polarizations and their impact on VCSEL designs
Creators: name: Chung, Il-Sug
Publisher: name: arXiv
Year: 2015
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: A theoretical study of differences in broadband high-index-contrast grating (HCG) reflectors for TM and TE polarizations is presented, covering various grating parameters and properties of HCGs. It is shown that the HCG reflectors for TM polarization (TM HCG reflectors) have much thicker grating thicknesses and smaller grating periods than the TE HCG reflectors. This difference is found to originate from the different boundary conditions met for the electric field of each polarization. Due to this difference, the TM HCG reflectors have much shorter evanescent extension of HCG modes into low-refractive-index media surrounding the HCG. This enables to achieve a very short effective cavity length for VCSELs, which is essential for ultrahigh speed VCSELs and MEMS-tunable VCSELs. The obtained understandings on polarization dependences will be able to serve as important design guidelines for various HCG-based devices.
Spin exchange collision mixing of the K and Rb ac Stark shifts
Creators: name: Chen, Yao
name: Lu, Yan
name: Fang, Jiancheng
Publisher: name: arXiv
Year: 2016
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: In a hybrid pumping alkali vapor cell that both K and Rb are filled, K atom spins are optically pumped by laser and Rb atom spins are polarized by the K spins through spin exchange. We find that the AC Stark shift of the Rb atoms is composed of not only the AC Stark shift of the Rb atoms caused by the far off resonant pumping laser which is tuned to the K absorption lines, but also the AC Stark shift of the K atom spins. The mixing of the light shifts through fast spin exchange between K and Rb atoms are studied in this paper and we demonstrate a K-Rb-21Ne co-magnetometer in which the AC Stark shift of the Rb atoms are reduced by the collision mixing.
description: 9pages, 3figures
Boophone guttata Herb.
Creators: name: Jarvis, Charlie
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Asparagales
Amaryllidaceae
Boophone
Boophone guttata

description: Amaryllis guttata Linnaeus, Species Plantarum 1: 294. 1753. "Habitat in Aethiopia." RCN: 2340. Replaced synonym of: Amaryllis ciliaris L. (1762), nom. illeg. Neotype (Müller-Doblies & Müller-Doblies in Feddes Repert. 105: 357. 1994): South Africa. Cape, Worcester, Chavonnes, near railway station, 14 Mar 1979, U. & D. Müller-Doblies 79132a (K; iso- B, BTU, M, MO, PRE, S, Z). Current name:  Boophone guttata (L.) Herb. (Liliaceae / Amaryllidaceae).
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part A), pp. 252-342 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 285, DOI: 10.5281/zenodo.291971
A Deterministic Analysis of Decimation for Sigma-Delta Quantization of Bandlimited Functions
Creators: name: Daubechies, Ingrid
name: Saab, Rayan
Publisher: name: arXiv
Year: 2015
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: We study Sigma-Delta ($ΣΔ$) quantization of oversampled bandlimited functions. We prove that digitally integrating blocks of bits and then down-sampling, a process known as decimation, can efficiently encode the associated $ΣΔ$ bit-stream. It allows a large reduction in the bit-rate while still permitting good approximation of the underlying bandlimited function via an appropriate reconstruction kernel. Specifically, in the case of stable $r$th order $ΣΔ$ schemes we show that the reconstruction error decays exponentially in the bit-rate. For example, this result applies to the 1-bit, greedy, first-order $ΣΔ$ scheme.
URLLC-Aware Proactive UAV Placement in Internet of Vehicles
Creators: name: Liu, Chen-Feng
name: Wickramasinghe, Nirmal D.
name: Suraweera, Himal A.
name: Bennis, Mehdi
name: Debbah, Merouane
Publisher: name: arXiv
Year: 2024
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Unmanned aerial vehicles (UAVs) are envisioned to provide diverse services from the air. The service quality may rely on the wireless performance which is affected by the UAV's position. In this paper, we focus on the UAV placement problem in the Internet of Vehicles, where the UAV is deployed to monitor the road traffic and sends the monitored videos to vehicles. The studied problem is formulated as video resolution maximization by optimizing over the UAV's position. Moreover, we take into account the maximal transmission delay and impose a probabilistic constraint. To solve the formulated problem, we first leverage the techniques in extreme value theory (EVT) and Gaussian process regression (GPR) to characterize the influence of the UAV's position on the delay performance. Based on this characterization, we subsequently propose a proactive resolution selection and UAV placement approach, which adaptively places the UAV according to the geographic distribution of vehicles. Numerical results justify the joint usage of EVT and GPR for maximal delay characterization. Through investigating the maximal transmission delay, the proposed approach nearly achieves the optimal performance when vehicles are evenly distributed, and reduces 10% and 19% of the 999-th 1000-quantile over two baselines when vehicles are biased distributed.
description: Accepted in the IEEE Transactions on Intelligent Transportation Systems
Boosting invisible searches via $\boldsymbol{ZH}$: From the Higgs Boson to Dark Matter Simplified Models
Creators: name: Goncalves, Dorival
name: Krauss, Frank
name: Kuttimalai, Silvan
name: Maierhöfer, Philipp
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Higgs boson production in association with a $Z$-boson at the LHC is analysed, both in the Standard Model and in Simplified Model extensions for Dark Matter. We focus on $H\rightarrow$invisibles searches and show that loop-induced components for both the signal and background present phenomenologically relevant contributions to the $\mathcal{BR}(H\rightarrow\textit{inv})$ limits. In addition, the constraining power of this channel to Simplified Models for Dark Matter with scalar and pseudo-scalar mediators $ϕ$ and $A$ is discussed and compared with non-collider constraints. We find that with $100~fb^{-1}$ of LHC data, this channel provides competitive constraints to the non-collider bounds, for most of the parameter space we consider, bounding the universal Standard Model fermion-mediator strength at $g_v < 1$ for moderate masses in the range of ${100~\text{GeV}
description: 10 pages, 9 figures
CLIPC Indicators and Datasets
Creators: name: Costa‎, Luis
Publisher: name: Zenodo
Year: 2016
Subjects: subject: ecology and environment
subject: Climate
subject: https://id.loc.gov/authorities/subjects/sh85040468.html
subject: https://id.loc.gov/authorities/subjects/sh85040850.html

description: Comprehensive listing of climate change impact indicator datasets produced by the CLIPC project (www.clipc.eu).
description: Previously curated at: http://cedadocs.ceda.ac.uk/1295/ The publish date on this item was its original published date. This work was funded by: European Commission (FP7). Associated projects: CLIPC Main files in this record: clipc-indicators-datasets.xlsx Item originally deposited with Centre for Environmental Data Analysis (CEDA) document repository by Dr Martin Juckes. Transferred to CEDA document repository community on Zenodo on 2022-11-24
Generation of Kerr combs centered at 4.5μm in crystalline microresonators pumped by quantum cascade lasers
Creators: name: Savchenkov, Anatoliy A.
name: Ilchenko, Vladimir. S.
name: Di Teodoro, Fabio
name: Belden, Paul M.
name: Lotshaw, William T.
name: Matsko, Andrey B.
name: Maleki, Lute
Publisher: name: arXiv
Year: 2015
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We report on the generation of mid-infrared Kerr frequency combs in high-finesse CaF$_2$ and MgF$_2$ whispering-gallery mode resonators pumped with continuous wave room temperature quantum cascade lasers. The combs were centered at 4.5$μ$m, the longest wavelength to date. A frequency comb wider than a half of an octave was demonstrated when approximately 20mW of pump power was coupled to an MgF2 resonator characterized with quality factor exceeding 10$^8$.
description: 5 pages, 5 figures
HadISDH Update Document version 3.0.0.2016p
Creators: name: Willett, Kate
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: HadISDH update document covering the latest changes in version V3.0.0.2016p from previous versions.
description: Previously curated at: http://cedadocs.ceda.ac.uk/1303/ The publish date on this item was its original published date. This item was previously associated with content (as an official url) at: http://catalogue.ceda.ac.uk/uuid/f34f97696cd94946b6ace2e8738df805. Main files in this record: HadISDH_Update_Document_2016.pdf Item originally deposited with Centre for Environmental Data Analysis (CEDA) document repository by Dr Kate Willett. Transferred to CEDA document repository community on Zenodo on 2022-11-24
The Inert Doublet Model and its extensions
Creators: name: Krawczyk, Maria
name: Darvishi, Neda
name: Sokolowska, Dorota
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The Inert Doublet Model and its extension with an additional complex singlet is considered. The CP violation aspects are analysed in the simplified case, with one SM-like Higgs doublet and a complex singlet.
description: Presented at Zakopane School 2015 by M. Krawczyk and N. Darvishi; v2: Updated references
Formation of in-volume nanogratings with sub-100 nm periods in glass by femtosecond laser irradiation
Creators: name: Liao, Yang
name: Pan, Wangjun
name: Cui, Yun
name: Qiao, Lingling
name: Bellouard, Yves
name: Sugioka, Koji
name: Cheng, Ya
Publisher: name: arXiv
Year: 2015
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We present direct experimental observation of the morphological evolution during the formation of nanogratings with sub-100-nm periods with the increasing number of pulses. Theoretical simulation shows that the constructive interference of the scattering light from original nanoplanes will create an intensity maximum located between the two adjacent nanoplanes, resulting in shortening of the nanograting period by half. The proposed mechanism enables explaining the formation of nanogratings with periods beyond that predicted by the nanoplasmonic model.
description: 4 pages, 3 figures
What are $Omh^2(z_1,z_2)$ and $Om(z_1,z_2)$ diagnostics telling us in light of $H(z)$ data?
Creators: name: Zheng, Xiaogang
name: Ding, Xuheng
name: Biesiada, Marek
name: Cao, Shuo
name: Zhu, Zonghong
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Two-point diagnostics $Om(z_i,z_j)$ and $Omh^2(z_i,z_j)$ have been introduced as an interesting tool for testing the validity of the $Λ$CDM model. Quite recently, Sahni, Shafieloo $\&$ Starobinsky (2014) combined two independent measurements of $H(z)$ from BAO data with the value of the Hubble constant $H_0$, and used the second of these diagnostics to test the $Λ$CDM model. Their result indicated a considerable tension between observations and predictions of the $Λ$CDM model. Since reliable data concerning expansion rates of the Universe at different redshifts $H(z)$ are crucial for the successful application of this method, we investigate both two-point diagnostics on the most comprehensive set of $N=36$ measurements of $H(z)$ coming from the BAO and differential ages (DA) of passively evolving galaxies. We discuss the uncertainties of two-point diagnostics and find that they are strongly non-Gaussian and follow the patterns deeply rooted in their very construction. Therefore we propose that non-parametric median statistics is the most appropriate way of treating this problem. Our results support the claims that $Λ$CDM is in tension with $H(z)$ data according to the two-point diagnostics developed by Shafieloo, Sahni and Starobinsky. However, other alternatives to the $Λ$CDM, such as wCDM or CPL models perform even worse. We also notice that there are serious systematic differences between BAO and DA methods which ought to be better understood before $H(z)$ measurements can become competitive to the other probes.
description: 19 pages, 10 figures, 5 tables. Accepted for publication in the ApJ
Cybistetes longifolia Milne-Redh. & Schweick.
Creators: name: Jarvis, Charlie
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Asparagales
Amaryllidaceae
Cybistetes
Cybistetes longifolia

description: Amaryllis longifolia Linnaeus, Species Plantarum 1: 293. 1753. "Habitat in Aethiopia." RCN: 2338. Lectotype (Wijnands, Bot. Commelins: 38. 1983): [icon] " Lilium Africanum Polyantbos " in Hermann, Parad. Bat.: 195. 1698 (see p. 135). Current name:  Cybistetes longifolia (L.) Milne-Redh. & Schweick. (Liliaceae / Amaryllidaceae). Note: Milne-Redhead & Schweickert (in J. Linn. Soc., Bot. 52: 159, f. 1. 1939) reproduced Hermann’s illustration.
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part A), pp. 252-342 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 285, DOI: 10.5281/zenodo.291971
Loxotropa nigricornis var. subterranea Kieffer 1911
Creators: name: Notton, David G.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Diapriidae
Loxotropa
Loxotropa nigricornis
Loxotropa nigricornis var. subterranea kieffer, 1911b: 939

description: Loxotropa nigricornis var. subterranea Kieffer, 1911b: 939.
Valid name
Trichopria nigricornis (Marshall, 1868).
Summary of types
Lectotype ♂, BMNH number 9.785, designated by Notton (1995).
Primary type data
Loxotropa / subterranea/ Blackgang Chine / Aug. 17/ 1908; Type; Ex coll./ Donisthorpe/ B.M.1934- 4.; Assoc. with/ Lasius flavus; Loxotropa / subterranea Kief.; Lectotype ♂ / Loxotropa / nigricornis/ subterranea/ det. D.G.Notton.
Type locality
England, Isle of Wight, Blackgang Chine.
Remarks
This species was described from an unspecified number of males. The lectotype is mounted on a card and is entire.
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 66-67, DOI: 10.5852/ejt.2014.75, http://zenodo.org/record/3862773
Torsion and the second fundamental form for distributions
Creators: name: Prince, G. E.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53B05, 53B20, 53B25, 53C12

description: The second fundamental form of Riemannian geometry is generalised to the case of a manifold with a linear connection and an integrable distribution. This bilinear form is generally not symmetric and its skew part is the torsion. The form itself is closely related to the shape map of the connection. The codimension one case generalises the traditional shape operator of Riemannian geometry.
The First Detection of Photometric Variability in a Y Dwarf: WISE J140518.39+553421.3
Creators: name: Cushing, Michael C.
name: Hardegree-Ullman, Kevin K.
name: Trucks, Jesica L.
name: Morley, Caroline V.
name: Gizis, John E.
name: Marley, Mark S.
name: Fortney, Jonathan J.
name: Kirkpatrick, J. Davy
name: Gelino, Christopher R.
name: Mace, Gregory N.
name: Carey, Sean J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the first detection of photometric variability of a spectroscopically-confirmed Y dwarf. The Infrared Array Camera on board the Spitzer Space Telescope was used to obtain times series photometry at 3.6 and 4.5 microns over a twenty four hour period at two different epochs separated by 149 days. Variability is evident at 4.5 um in the first epoch and at 3.6 and 4.5 um in the second epoch which suggests that the underlying cause or causes of this variability change on the timescales of months. The second-epoch [3.6] and [4.5] light curves are nearly sinusoidal in form, in phase, have periods of roughly 8.5 hours, and have semi-amplitudes of 3.5%. We find that a simple geometric spot model with a single bright spot reproduces these observations well. We also compare our measured semi-amplitudes of the second epoch light curves to predictions of the static, one-dimensional, partly cloudy and hot spot models of Morley and collaborators and find that neither set of models can reproduce the observed [3.6] and[4.5] semi-amplitudes simultaneously. More advanced two- or three-dimensional models that include time-dependent phenomena like vertical mixing, cloud formation, and thermal relaxation are therefore sorely needed in order to properly interpret our observations.
description: Accepted for publication in the Astrophysical Journal
Diffraction Resistant Scalar Beams Generated by a Parabolic Reflector and a Source of Spherical Waves
Creators: name: Zamboni-Rached, Michel
name: de Assis, Mariana Carolina
name: Ambrosio, Leonardo A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: In this work, we propose the generation of diffraction resistant beams by using a parabolic reflector and a source of spherical waves positioned at a point slightly displaced from its focus (away from the reflector). In our analysis, considering the reflector dimensions much greater than the wavelength, we describe the main characteristics of the resulting beams, showing their properties of resistance to the diffraction effects. Due to its simplicity, this method may be an interesting alternative for the generation of long range diffraction resistant waves.
description: 22 pages, 9 figures, Applied Optics, 2015
Fractionalizing glide reflections in two-dimensional Z2 topologically ordered phases
Creators: name: Lee, SungBin
name: Hermele, Michael
name: Parameswaran, S. A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the fractionalization of space group symmetries in two-dimensional topologically ordered phases. Specifically, we focus on Z2-fractionalized phases in two dimensions whose deconfined topological excitations transform trivially under translational symmetries, but projectively under glide reflections, whose quantum numbers are hence fractionalized. We accomplish this by generalizing the dichotomy between even and odd gauge theories to incorporate additional symmetries inherent to non-symmorphic crystals. We show that the resulting fractionalization of point group quantum numbers can be detected in numerical studies of ground state wave functions. We illustrate these ideas using a microscopic model of a system of bosons at integer unit cell filling on a lattice with space group p4g, that can be mapped to a half-magnetization plateau for an S =1/2 spin system on the Shastry-Sutherland lattice.
description: 17 pages, 6 figures
The dielectric genome of van der Waals heterostructures
Creators: name: Andersen, Kirsten
name: Latini, Simone
name: Thygesen, Kristian S.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Vertical stacking of two-dimensional (2D) crystals, such as graphene and hexagonal boron nitride, has recently lead to a new class of materials known as van der Waals heterostructures (vdWHs) with unique and highly tunable electronic properties. Abinitio calculations should in principle provide a powerful tool for modeling and guiding the design of vdWHs, but in their traditional, form such calculations are only feasible for commensurable structures with a few layers. Here we show that the dielectric properties of realistic, incommensurable vdWHs comprising hundreds of layers can be calculated with ab-initio accuracy using a multi-scale approach where the dielectric functions of the individual layers (the dielectric building blocks) are coupled simply via their long-range Coulomb interaction. We use the method to illustrate the 2D- 3D dielectric transition in multi-layer MoS2 crystals, the hybridization of quantum plasmons in large graphene/hBN heterostructures, and to demonstrate the intricate effect of substrate screening on the non-Rydberg exciton series in supported WS2.
description: To be published in Nano Lett
Understanding Electric Vehicle Ownership Using Data Fusion and Spatial Modeling
Creators: name: Meiyu
name: Pan
name: Uddin, Majbah
name: Lim, Hyeonsup
Publisher: name: arXiv
Year: 2024
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: The global shift toward electric vehicles (EVs) for climate sustainability lacks comprehensive insights into the impact of the built environment on EV ownership, especially in varying spatial contexts. This study, focusing on New York State, integrates data fusion techniques across diverse datasets to examine the influence of socioeconomic and built environmental factors on EV ownership. The utilization of spatial regression models reveals consistent coefficient values, highlighting the robustness of the results, with the Spatial Lag model better at capturing spatial autocorrelation. Results underscore the significance of charging stations within a 10-mile radius, indicative of a preference for convenient charging options influencing EV ownership decisions. Factors like higher education levels, lower rental populations, and concentrations of older population align with increased EV ownership. Utilizing publicly available data offers a more accessible avenue for understanding EV ownership across regions, complementing traditional survey approaches.
The SERC Geophysical Data Facility Novice Guide
Creators: name: Unknown
Publisher: name: Zenodo
Year: 1990
Subjects: subject: https://id.loc.gov/authorities/subjects/sh2018002590.html
subject: https://id.loc.gov/authorities/subjects/sh85040468.html

description: Introduction: Welcome to the SERC Geophysical Data Facility (GDF). With the aid of this guide, a suitable terminal and a personal user account on the GDF microvax you will be able to enjoy all the basic facilities that the GDF has to offer. These facilities include retrieving data from the archive and using a host of GDF software tools to browse, list, save, plot and in some cases, analyse them. You will also be able to send messages to other registered users, transfer sub-sets of data back to your local computer for further processing and view on-line help about datasets and the GDF system. A set of companion guides will be made available to assist users needing more comprehensive information.
description: Previously curated at: http://cedadocs.ceda.ac.uk/1307/ This work was funded by: Science and Engineering Research Council. Associated projects: Geophysical Data Facility Main files in this record: GDF_novice_guide.pdf Item originally deposited with Centre for Environmental Data Analysis (CEDA) document repository by Sam pepler. Transferred to CEDA document repository community on Zenodo on 2022-11-24
Sternbergia lutea Spreng.
Creators: name: Jarvis, Charlie
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Asparagales
Amaryllidaceae
Sternbergia
Sternbergia lutea

description: Amaryllis lutea Linnaeus, Species Plantarum 1: 292. 1753. "Habitat in Hispania, Italia, Thracia." RCN: 2331. Type not designated. Original material: Herb. A. van Royen No. 897.324-58 (L); Herb. Burser III: 78 (UPS); [icon] in Clusius, Rar. Pl. Hist. 1: 164. 1601. Current name:  Sternbergia lutea (L.) Ker-Gawl. ex Spreng. (Liliaceae / Amaryllidaceae). Note: Mathew (in Davis, Fl. Turkey 8: 361. 1984) indicated 416.1 (LINN) as the type, and has been followed by later authors including Kamari & Artelari (in Willdenowia 19: 375. 1990), and also Morales & Castillo (in Anales Jard. Bot. Madrid 61: 124. 2004), who restricted the choice to the central leaf and flower. However, this collection, from Kähler, did not reach Linnaeus until 1757 and is not original material for the name.
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part A), pp. 252-342 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 285, DOI: 10.5281/zenodo.291971
Relation between the rate of convergence of strong law of large numbers and the rate of concentration of Bayesian prior in game-theoretic probability
Creators: name: Sato, Ryosuke
name: Miyabe, Kenshi
name: Takemura, Akimichi
Publisher: name: arXiv
Year: 2016
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60G42

description: We study the behavior of the capital process of a continuous Bayesian mixture of fixed proportion betting strategies in the one-sided unbounded forecasting game in game-theoretic probability. We establish the relation between the rate of convergence of the strong law of large numbers in the self-normalized form and the rate of divergence to infinity of the prior density around the origin. In particular we present prior densities ensuring the validity of Erdos-Feller-Kolmogorov-Petrowsky law of the iterated logarithm.
Buoyancy instability of homologous implosions
Creators: name: Johnson, Bryan M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: I consider the hydrodynamic stability of imploding gases as a model for inertial confinement fusion capsules, sonoluminescent bubbles and the gravitational collapse of astrophysical gases. For oblate modes under a homologous flow, a monatomic gas is governed by the Schwarzschild criterion for buoyant stability. Under buoyantly unstable conditions, fluctuations experience power-law growth in time, with a growth rate that depends upon mean flow gradients and is independent of mode number. If the flow accelerates throughout the implosion, oblate modes amplify by a factor (2C)^(|N0| ti)$, where C is the convergence ratio of the implosion, N0 is the initial buoyancy frequency and ti is the implosion time scale. If, instead, the implosion consists of a coasting phase followed by stagnation, oblate modes amplify by a factor exp(pi |N0| ts), where N0 is the buoyancy frequency at stagnation and ts is the stagnation time scale. Even under stable conditions, vorticity fluctuations grow due to the conservation of angular momentum as the gas is compressed. For non-monatomic gases, this results in weak oscillatory growth under conditions that would otherwise be buoyantly stable; this over-stability is consistent with the conservation of wave action in the fluid frame. By evolving the complete set of linear equations, it is demonstrated that oblate modes are the fastest-growing modes and that high mode numbers are required to reach this limit (Legendre mode l > 100 for spherical flows). Finally, comparisons are made with a Lagrangian hydrodynamics code, and it is found that a numerical resolution of ~30 zones per wavelength is required to capture these solutions accurately. This translates to an angular resolution of ~(12/l) degrees, or < 0.1 degree to resolve the fastest-growing modes.
description: 10 pages, 3 figures, accepted for publication in the Journal of Fluid Mechanics Rapids
A remark on the Glimm scheme for inhomogeneous hyperbolic systems of balance laws
Creators: name: Christoforou, Cleopatra
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35L65, 35L45, 35L60

description: General hyperbolic systems of balance laws with inhomogeneous flux and source are studied. Global existence of entropy weak solutions to the Cauchy problem is established for small $BV$ data under appropriate assumptions on the decay of the flux and the source with respect to space and time. There is neither a hypothesis about equilibrium solution nor about the dependence of the source on the state vector as previous results have assumed.
Brunsvigia orientalis Eckl.
Creators: name: Jarvis, Charlie
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Asparagales
Amaryllidaceae
Brunsvigia
Brunsvigia orientalis

description: Amaryllis orientalis Linnaeus, Species Plantarum 1: 293. 1753. "Habitat in India." RCN: 2339. Type not designated. Original material: [icon] in Sweerts, Florilegium: t. 31. 1612; [icon] in Morison, Pl. Hist. Univ. 2: 368, s. 4, t. 10, f. 35. 1680. Current name:  Brunsvigia orientalis (L.) Aiton ex Eckl. (Liliaceae / Amaryllidaceae).
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part A), pp. 252-342 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 285, DOI: 10.5281/zenodo.291971
Supersymmetric M2-branes with Englert Fluxes and the simple group PSL(2,7)
Creators: name: Fre, Pietro
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: A new class is introduced of M2-branes solutions of d=11 supergravity that include internal fluxes obeying Englert equation in 7-dimensions. A simple criterion for the existence of Killing spinors in such backgrounds is established. Englert equation is viewed as the generalization to d=7 of Beltrami equation defined in d=3 and it is trated accordingly. All 2-brane solutions of minimal d=7 supergracity can be uplifted to d=11 and have N > 4 or N = 4 supersymmetry. It is shown that the simple group PSL(2,7) is crystallographic in d=7 having an integral action on the A7 root lattice. By means of this point-group and of the T7 torus obtained quotiening R7 with the A7 root lattice we were able to construct new M2 branes with Englert fluxes and N < 4. In particular we exhibit here an N=1 solution depending on 4-parameters and admitting a large non abelian discrete symmetry, namely G21 = Z3 semidirect product with Z7 = subgroup of PSL(2,7). The dual d=3 field theories have the same symmetries and have complicated non linear interactions.
description: 59 pages, two figures. Original Research Article. Few misprints corrected, a pair of sentences added in the aknowledgments
Radiative transfer model for contaminated rough slabs
Creators: name: Andrieu, François
name: Douté, Sylvain
name: Schmidt, Frédéric
name: Schmitt, Bernard
Publisher: name: arXiv
Year: 2015
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We present a semi-analytical model to simulate bidirectional reflectance distribution function (BRDF) spectra of a rough slab layer containing impurities. This model has been optimized for fast computation in order to analyze hyperspectral data. We designed it for planetary surfaces ices studies but it could be used for other purposes. It estimates the bidirectional reflectance of a rough slab of material containing inclusions, overlaying an optically thick media (semi-infinite media or stratified media, for instance granular material). The inclusions are supposed to be close to spherical, and of any type of other material than the ice matrix. It can be any type of other ice, mineral or even bubbles, defined by their optical constants. We suppose a low roughness and we consider the geometrical optics conditions. This model is thus applicable for inclusions larger than the considered wavelength. The scattering on the inclusions is assumed to be isotropic. This model has a fast computation implementation and thus is suitable for high resolution hyperspectral data analysis.