cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Compact Dual-band Bandpass Filter Based on Fractal Stub-loaded Resonator
Creators: name: Ali, Jawad K.
Publisher: name: figshare
Year: 2020
Subjects: subject: 90699 Electrical and Electronic Engineering not elsewhere classified
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Fractal geometries have shown to be a suitable choice for the antenna and microwave circuit designers to produce compact size microwave devices and components. Moreover, the multimode resonators are found advantageous in the design of reduced size multiband bandpass filters. In this paper, a stub loaded resonator (SLR) based on modified Minkowski fractal geometry, is suggested to produce a compact microstrip bandpass filter with dual-band response for wireless communication applications. Based on the second iteration Minkowski fractal geometry, dual-band compact microstrip BPF has been presented. The proposed filter structure is composed of two fractal based symmetrical SLRs. The filter structure has been etched using a substrate with dielectric constant of 3.02 and thickness of 1.425 mm. Simulation results show that the proposed fractal based SLR can be used to construct compact microstrip BPFs with dual-band responses. The lower resonant band is centered at about 1.875 GHz, and the upper resonant band is positioned at 5.575 GHz. The corresponding bandwidths of the two bands extend from 1.841–1.918 GHz and 5.438–5.650 GHz respectively. Besides the compact size, the suggested filter offers reasonable performance responses.
Nonpolynomial vector fields under the Lotka-Volterra normal form
Creators: name: Hernández-Bermejo, Benito
name: Fairén, V.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mathematical Physics (math-ph)
subject: Dynamical Systems (math.DS)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We carry out the generalization of the Lotka-Volterra embedding to flows not explicitly recognizable under the Generalized Lotka-Volterra format. The procedure introduces appropiate auxiliary variables, and it is shown how, to a great extent, the final Lotka-Volterra system is independent of their specific definition. Conservation of the topological equivalence during the process is also demonstrated.
Aegoschema cinereum Lane 1938
Creators: name: Monné, Miguel A.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Aegoschema
Aegoschema cinereum

description: 2. Aegoschema cinereum Lane, 1938
Type locality — Brazil, Minas Gerais: Manhumirim. (MNRJ). Distribution — Brazil (Minas Gerais, Espírito Santo).
 Aegoschema cinereum Lane, 1938b: 108, pl. 30; 1973a: 393; Julio et al., 2000: 31 (holotype).
description: Published as part of Monné, Miguel A., 2005, Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part II. Subfamily Lamiinae, pp. 1-760 in Zootaxa 1023 (1) on pages 1-760, DOI: 10.11646/zootaxa.946.1.1, http://zenodo.org/record/5049553
Performance Evaluation of Three Rectangular Patch Element Array Antenna Conformed on Small Radius Cylindrical Surface
Creators: name: Ali, Jawad K.
Publisher: name: figshare
Year: 2020
Subjects: subject: 90699 Electrical and Electronic Engineering not elsewhere classified
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The cylindrical geometry can offer certain desirable antenna characteristics that are not provided by planar elements. In this paper, a three-element cylindrical conformal array antenna has been presented as a candidate for use in wireless communications and Radio Frequency Identification (RFID). Each element in the array is a microstrip fed rectangular patch antenna designed to resonate at 2.4 GHz. Once the desired results were obtained for a single element, each element in the conformal cylindrical array has been then designed using the same dimensions and parameters. Modeling and performance evaluation of the array has been carried out using the commercially available electromagnetic software CST Studio SuiteTM 2009. Simulations have been conducted to study the performance of the proposed conformal array as well as the effects of small radius cylinder on mutual coupling and the radiation pattern of the array. The cylindrical radii in consideration are of about one quarter wavelengths or slightly more. The radius of cylinder used in simulation is taken to be 0.24¸ and 0.32¸. Compared with the existing cylindrical conformal antenna, the proposed array antenna possesses a reduction in cylindrical structure radius with acceptable ominidirectionality and gain needed for wireless communications and RFID applications.
Aegoschema moniliferum
Creators: name: Monné, Miguel A.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Aegoschema
Aegoschema moniliferum

description: 3. Aegoschema moniliferum (White, 1855)
 Type locality — Brazil, Pará. (BMNH). Distribution — French Guiana, Brazil (Pará). Aegomorphus moniliferus White, 1855: 374, pl. 9, fig. 7; Bates, 1861: 151.
 Aegoschema monilifera; Gilmour, 1965: 607 (cat.).
description: Published as part of Monné, Miguel A., 2005, Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part II. Subfamily Lamiinae, pp. 1-760 in Zootaxa 1023 (1) on pages 1-760, DOI: 10.11646/zootaxa.946.1.1, http://zenodo.org/record/5049553
A New Fractal Based PIFA Antenna Design for MIMO Dual Band WLAN Applications
Creators: name: Ali, Jawad K.
Publisher: name: figshare
Year: 2020
Subjects: subject: 90699 Electrical and Electronic Engineering not elsewhere classified
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This paper introduces the design of a dual-band internal F-PIFA (Fractal Planar Inverted F-antenna) as a candidate for use in the dual band WLAN (wireless local area network) MIMO (multi-input multi-output) applications. At first, the 4th iteration Koch's fractal geometry has been applied to the edges of the conventional rectangular patch structure to design a single compact antenna with a dual band resonant behavior. The radiating fractal based patch has been printed on a substrate with relative permittivity of 4.1 and thickness of 0.9 mm, and the antenna has been fed with 50­ probe. This antenna is located at the corner of a copper ground plane of 0.05mm thickness and dimensions of 110£70mm2. It has been found that the resulting F-PIFA has the dimensions of about 21mm * 15mm * 6:2 mm, making it suitable for mobile terminal applications. Furthermore, the proposed antenna offers a dual band resonance with a frequency ratio of about 2.41; resulting in bandwidths, for return loss · ¡10 dB, covering the two WLAN band standards. Modeling and performance evaluation of the proposed antenna have been carried out using the CST Microwave Studio. The modeled antenna has been applied to a 4 by 4 MIMO system suggested for use in dual band WLAN applications. Simulation results show that the suggested system offers -10 dB impedance bandwidths of about 300MHz with an isolation of about 12 dB, for the lower band, and 570MHz with an isolation of higher than 22 dB, for the upper band. This makes the proposed system suitable for use in MIMO dual band WLAN applications.
Cryogenic Capacitive Transimpedance Amplifier for Astronomical Infrared Detectors
Creators: name: Nagata, Hirohisa
name: Shibai, Hiroshi
name: Hirao, Takanori
name: Watabe, Toyoki
name: Noda, Manabu
name: Hibi, Yasunori
name: Kawada, Mitsunobu
name: Nakagawa, Takao
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have developed a new capacitive transimpedance amplifier (CTIA) that can be operated at 2 K, and have good performance as readout circuits of astronomical far-infrared array detectors. The circuit design of the present CTIA consists of silicon p-MOSFETs and other passive elements. The process is a standard Bi-CMOS process with 0.5$mu$m design rule. The open-loop gain of the CTIA is more than 300, resulting in good integration performance. The output voltage swing of the CTIA was 270 mV. The power consumption for each CTIA is less than 10$mu$W. The noise at the output showed a$1/rm f$noise spectrum of 4$mu$V/$surdhbox Hz$at 1 Hz. The performance of this CTIA nearly fulfills the requirements for the far-infrared array detectors onboard ASTRO-F, Japanese infrared astronomical satellite to be launched in 2005.
description: 22 pages, 7 figures, 4 tables
Charge sharing in single and double GEMs
Creators: name: Roy, Promita
name: Bhattacharya, Purba
name: Mukhopadhyay, Supratik
name: Majumdar, Nayana
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The Gas Electron Multiplier (GEM) has become a widely used technology for high-rate particle physics experiments like COMPASS, LHCb and are being used as the readout system for the upcoming upgrade version of other experiments such as ALICE TPC. Radiation hardness, ageing resistance and stability against discharges are main criteria for long-term operation of such detectors in high-rate experiments. In particular, discharge is a serious issue as it may cause irreversible damages to the detector as well as the readout electronics. The charge density inside the amplification region is the limiting factor for detector stability against discharges. By using multiple devices and thus, sharing the electron multiplication in different stages, maximum sustainable gain can be increased by several orders of magnitude. A common explanation for this is connected to the transverse electron diffusion, widening of the electron cloud and reducing the charge density in the last multiplier. However, this has not been verified yet. In our work, we are using Garfield simulation framework as a tool to extract the information related to the transverse size of the propagating electron cloud and thus, to estimate the charge density in the GEM holes for multiple stages. For a given gas mixture, we will present the initial results of charge sharing using single and double GEM detectors under different electric field configurations and its effect on other measurable detector parameters such as single point position resolution.
Gravitational waves for eccentric extreme mass ratio inspirals of self-dual spacetime
Creators: name: Liu, Yunlong
name: Zhang, Xiangdong
Publisher: name: arXiv
Year: 2024
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In this paper, we calculate the frequencies of geodesic orbits in self-dual spacetime on the equatorial plane and obtain the leading-order effects of loop quantum parameters $P$ on the energy flux and angular momentum flux in eccentric extreme mass ratio inspirals. The gravitational waveform under different eccentricity is carried out by improved "analytic-kludge" method. Through the calculation of waveform mismatches for the LISA detector, the constraints on loop quantum parameters will be improved by 1 to 2 orders of magnitude, compared to the weak field experiments in the solar system, and can reach the level of $10^{-8}$.
description: 20 pages, 13 figures
Dissipation in Josephson qubits
Creators: name: Makhlin, Yuriy
name: Schön, Gerd
name: Shnirman, Alexander
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We discuss the dissipative dynamics of superconducting qubits in the applicability range of the Bloch equations and beyond.
description: A tutorial prepared for the Proceedings of "New Directions in Mesoscopic Physics" (Erice, 2002)
The Sunburst Arc with JWST: I. Detection of Wolf-Rayet stars injecting nitrogen into a low-metallicity, $z=2.37$ proto-globular cluster leaking ionizing photons
Creators: name: Rivera-Thorsen, T. Emil
name: Chisholm, J.
name: Welch, B.
name: Rigby, J. R.
name: Hutchison, T.
name: Florian, M.
name: Sharon, K.
name: Choe, S.
name: Dahle, H.
name: Bayliss, M. B.
name: Khullar, G.
name: Gladders, M.
name: Hayes, M.
name: Adamo, A.
name: Owens, M. R.
name: Kim, K.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We report the detection of a population of Wolf-Rayet (WR) stars in the Sunburst Arc, a strongly gravitationally lensed galaxy at redshift $z=2.37$. As the brightest known lensed galaxy, the Sunburst Arc has become an important cosmic laboratory for studying star and cluster formation, Lyman $α$ radiative transfer, and Lyman Continuum (LyC) escape. Here, we present the first results of JWST/NIRSpec IFU observations of the Sunburst Arc, focusing on a stacked spectrum of the 12-fold imaged LyC-emitting (Sunburst LCE) cluster. In agreement with previous studies, we find that the cluster is massive and compact, with $M_{\text{dyn}} = (9\pm1) \times 10^{6} M_{\odot}$, Our age estimate of 4.2--4.5 Myr is much larger than the crossing time of $t_{\text{cross}} = 183 \pm 9 $ kyr, indicating that the cluster is dynamically evolved and consistent with being gravitationally bound. We find a significant nitrogen enhancement of the low ionization state ISM, with $\log(N/O) = -0.74 \pm 0.09$, which is $\approx 0.8$ dex above typical values for H II regions of similar metallicity in the local Universe. We find broad stellar emission complexes around He II$λ4686$ and C IV$λ5808$ with associated nitrogen emission -- this is the first time WR signatures have been directly observed at redshifts above $\sim 0.5$. The strength of the WR signatures cannot be reproduced by stellar population models that only include single-star evolution. While models with binary evolution better match the WR features, they still struggle to reproduce the nitrogen-enhanced WR features. JWST reveals the Sunburst LCE to be a highly ionized, proto-globular cluster with low oxygen abundance and extreme nitrogen enhancement that hosts a population of Wolf-Rayet stars, and possibly Very Massive stars (VMSs), which are rapidly enriching the surrounding medium.
description: 8 pages, 4 figures, 3 tables. Accepted for publication in A&A
A stable SPH with adaptive B-spline kernel
Creators: name: Lahiri, Saptarshi Kumar
name: Bhattacharya, Kanishka
name: Shaw, Amit
name: Ramachandra, L S
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Computer and information sciences

description: Tensile instability, often observed in smoothed particle hydrodynamics (SPH), is a numerical artifact that manifests itself by unphysical clustering or separation of particles. The instability originates in estimating the derivatives of the smoothing functions which, when interact with material constitution may result in negative stiffness in the discretized system. In the present study, a stable formulation of SPH is developed where the kernel function is continuously adapted at every material point depending on its state of stress. Bspline basis function with a variable intermediate knot is used as the kernel function. The shape of the kernel function is then modified by changing the intermediate knot position such that the condition associated with instability does not arise. While implementing the algorithm the simplicity and computational efficiency of SPH are not compromised. One-dimensional dispersion analysis is performed to understand the effect adaptive kernel on the stability. Finally, the efficacy of the algorithm is demonstrated through some benchmark elastic dynamics problems.
description: 34 Pages, 22 Figures
A Compact Dual-band Slot Antenna Based on Koch Fractal Snowflake Annular Ring
Creators: name: Ali, Jawad K.
Publisher: name: figshare
Year: 2020
Subjects: subject: 90699 Electrical and Electronic Engineering not elsewhere classified
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This paper presents the design of a compact dual-band slot antenna for use in the recently available wireless communication applications. The slot structure of the proposed antenna is based on an annular slot-ring with Koch snowflake fractal geometry of the third iteration. The antenna slot structure has been etched on the ground plane of a substrate with relative permittivity of 4.5 and 1.524 mm thickness. On the other side of the substrate, a 50-Ohm microstrip line has been etched as the antenna feed structure. The proposed antenna has a compact size of (40 × 40 × 1.524) mm3. Simulation results show that the proposed antenna could excite two resonant bands. The lower resonant band extends from (2.38–3.03) GHz while the upper resonant band extends from (4.45–5.06) GHz. This makes the antenna suitable for a wide range of currently available communication services.
Temperature dependent total scattering structural study of CaCu3Ti4O12
Creators: name: Bozin, E. S.
name: Petkov, V.
name: Barnes, P. W.
name: Woodward, P. M.
name: Vogt, T.
name: Mahanti, S. D.
name: Billinge, S. J. L.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: X-ray and neutron powder diffraction data as a function of temperature are analyzed for the colossal dielectric constant material CaCu3Ti4O12. The local structure is studied using atomic pair distribution function analysis. No evidence is found for enhanced oxygen displacement parameters suggesting that short-range octahedral tilt disorder is minimal. However, an unusual temperature dependence for the atomic displacement parameters of calcium and copper is observed. Temperature dependent modeling of the structure, using bond valence concepts, suggests that the calcium atoms become underbonded below approximately 260 K, which provides a rationale for the unusually high Ca displacement parameters at low temperature.
description: 9 pages, 7 figures
Schwungvoll: Die Albisstrasse - Wollishofer Blog
Creators: name: Brändli, Sebastian
Publisher: name: Zentralbibliothek Zürich
Year: 2021
Subjects: subject: 710 Städtebau, Raumplanung, Landschaftsgestaltung
subject: 720 Architektur
subject: Straße
subject: Städtebau
subject: Zürich-Wollishofen

description: Ein Blog zu Geschichte und Quartierleben des Zürcher Stadtquartiers Wollishofen auf wollipedia.ch. Mit Texten von Sebastian Brändli (SB) und Ansichtskarten aus der Sammlung von Markus Zimmermann (MZ).
Constraints on the contributions to the observed binary black hole population from individual evolutionary pathways in isolated binary evolution
Creators: name: Stevenson, Simon
name: Clarke, Teagan
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Gravitational waves from merging binary black holes can be used to shed light on poorly understood aspects of massive binary stellar evolution, such as the evolution of massive stars (including their mass-loss rates), the common envelope phase, and the rate at which massive stars form throughout the cosmic history of the Universe. In this paper we explore the \emph{correlated} impact of these phases on predictions for the merger rate and chirp mass distribution of merging binary black holes, aiming to identify possible degeneracies between model parameters. In many of our models, a large fraction (more than 70% of detectable binary black holes) arise from the chemically homogeneous evolution scenario; these models tend to over-predict the binary black hole merger rate and produce systems which are on average too massive. Our preferred models favour enhanced mass-loss rates for helium rich Wolf--Rayet stars, in tension with recent theoretical and observational developments. We identify correlations between the impact of the mass-loss rates of Wolf--Rayet stars and the metallicity evolution of the Universe on the rates and properties of merging binary black holes. Based on the observed mass distribution, we argue that the $\sim 10\%$ of binary black holes with chirp masses greater than $40$ M$_\odot$ (the maximum predicted by our models) are unlikely to have formed through isolated binary evolution, implying a significant contribution (> 10%) from other formation channels such as dense star clusters or active galactic nuclei. Our models will enable inference on the uncertain parameters governing binary evolution in the near future.
description: 21 pages, 17 figures. Accepted for publication in MNRAS
Advantages of Health Tourism in Spas and Climatic Localities of Kolubara District and Istria County on Aspect of Potential Tourist Demand's Transitional Changes
Creators: name: Hamovic, Vladana
name: Ruzic, Pavlo
name: Vukovic, Predrag
name: Hamovic, Vladana
name: Ruzic, Pavlo
name: Vukovic, Predrag
Publisher: name: Unknown
Year: 2009
Subjects: subject: Demand and Price Analysis
subject: natural potentials
subject: spa tourism
subject: climatic sanatoriums
subject: new aspects of demand
subject: tracking the changes on tourist maket

description: The condition of modern tourist market leads to increased diversification of contents and services demand, but also to creation of groundwork for certain selective forms of tourism development on specific areas within a country. Modern trends in tourism show an aptitude that each indivudual looks for some specific location, with particular contents and features, subordinated and adjusted to him. Therefore is inevitable to follow the changes in selective forms of tourism, in order to create adequate modern tourist surrounding. The selective forms of tourism have a power to turn particular destination into a centre of tourist supply of some region or country. It is achieved by careful monitoring and determination of development-tourist contents that are offered. Thus, the transitional changes in tourist demand and on tourist market require fast changes and replies to tourists' new requirements. It refers to all forms of tourism and tourist supply of every country, which aspires, even a little bit, to engage seriously in tourism as an economic activity.
Zusatzblog: Gegen den eigenen Willen - Wollishofer Blog
Creators: name: Brändli, Sebastian
Publisher: name: Zentralbibliothek Zürich
Year: 2021
Subjects: subject: 320 Politikwissenschaft
subject: Eingemeindung
subject: Kommunalpolitik
subject: Zürich-Wollishofen

description: Ein Blog zu Geschichte und Quartierleben des Zürcher Stadtquartiers Wollishofen auf wollipedia.ch. Mit Texten von Sebastian Brändli (SB) und Ansichtskarten aus der Sammlung von Markus Zimmermann (MZ).
Upper Limit of Sound Speed in Nuclear Matter: A Harmonious Interplay of Transport Calculation and Perturbative Quantum Chromodynamic Constraint
Creators: name: Tang, Shao-Peng
name: Huang, Yong-Jia
name: Han, Ming-Zhe
name: Fan, Yi-Zhong
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Very recently, it has been shown that there is an upper bound on the squared sound speed of nuclear matter from the transport, which reads $c_{\rm s}^2 \leq 0.781$. In this work, we demonstrate that this upper bound is corroborated by the reconstructed equation of state (EOS; modeled with a nonparametric method) for ultradense matter. The reconstruction integrates multimessenger observation for neutron stars, in particular, the latest radius measurements for PSR J0437-4715 ($11.36^{+0.95}_{-0.63}$ km), PSR J0030+0451 ($11.71^{+0.88}_{-0.83}$ km, in the ST+PDT model), and PSR J0740+6620 ($12.49^{+1.28}_{-0.88}$ km) by NICER have been adopted. The result shows in all cases, the $c_{\rm s}^2 \leq 0.781$ upper limit for EOS will naturally yield the properties of matter near the center of the massive neutron star consistent with the causality-driven constraint from pQCD, where, in practice, the density in implementing the pQCD likelihood ($n_{\rm L}$) is applied at $10n_s$ (where $n_s$ is the nuclear saturation density). We also note that there is a strong correlation for the maximum $c_s^2$ with $n_{\rm L}$, and $c_{\rm s}^2 \leq 0.781$ is somehow violated when $n_{\rm L} = n_{\rm c,TOV}$. The result indicates that a higher $n_{\rm L}$, even considering the uncertainties from statistics, is more natural. Moreover, the remarkable agreement between the outcomes derived from these two distinct and independent constraints (i.e., the transport calculation and pQCD boundary) lends strong support to their validity. In addition, the latest joint constraint for $R_{1.4}$, $R_{2.0}$, $R_{1.4}-R_{2.0}$, and $M_{\rm TOV}$ are $11.94_{-0.68}^{+0.77}$ km, $11.99_{-0.67}^{+0.88}$ km, $-0.1_{-0.27}^{+0.42}$ km, and $2.24_{-0.10}^{+0.13}M_\odot$ (at $90\%$ credible level), respectively.
description: 9 pages, 9 figures, ApJ published
Economic Position of the Municipality of Leskovac in the Transition Period
Creators: name: Prokopovic, Bariboje B.
name: Prokopovic, Tatjana S.
name: Cvetkovic, Zoran I.
name: Prokopovic, Bariboje B.
name: Prokopovic, Tatjana S.
name: Cvetkovic, Zoran I.
Publisher: name: Unknown
Year: 2009
Subjects: subject: Institutional and Behavioral Economics
subject: Transition
subject: ownership
subject: private and socially-owned capital
subject: national income

description: The paper deals with estimation of the socially-owned capital transition of the Municipality of Leskovac economy in the period from 2000 to 2006. Measurements of results carried out via national income, economic growth and employment.
Cyanopropyl-functionalized nanosilica based dispersive micro-solid phase extraction method for rapid removal of organophosphorus pesticides from water samples
Creators: name: Alizadeh, Abdolhamid
name: Korrani, Z.S.
name: Ibrahim, W.A.W.
name: Sharma, G.
Publisher: name: figshare
Year: 2021
Subjects: subject: Organic Chemistry
subject: FOS: Chemical sciences

description: In this study, a hydrophilic adsorbent based on cyanopropyl-functionalized silica nanoparticles (CNPr@SiO2 NPs) was successfully synthesized via a sol–gel method. The nanoparticles were characterized using Fourier transform infrared spectroscopy, field emission scanning electron microscopy, Brunauer–Emmett–Teller analysis, and thermogravimetric analysis. The synthesized CNPr@SiO2 NPs were then used as an adsorbent in dispersive micro-solid phase extraction (D-μ-SPE) of some polar and nonpolar organophosphorus pesticides from water samples prior to high-performance liquid chromatography-ultraviolet detection. Under the optimized parameters, the proposed method based on CNPr@SiO2 NPs showed low limits of detection in the range of 0.047–0.059 μg L–1, satisfactory recoveries (101.21%–109.12%), and good RSDs (0.20%–6.70%) for the extraction of OPPs from the various water samples. In addition, the developed D-μ-SPE method based on CNPr@SiO2 NPs showed a superior extraction capability toward the OPPs in comparison to commercial cyanopropyl-bonded silica solid-phase extraction cartridge. © 2020 Desalination Publications. All rights reserved.
The Causes, Features and Goals of Transition Process in Serbia
Creators: name: Mihailovic, Branko
name: Simonovic, Zoran
name: Cvijanovic, Drago
name: Mihailovic, Branko
name: Simonovic, Zoran
name: Cvijanovic, Drago
Publisher: name: Unknown
Year: 2009
Subjects: subject: Institutional and Behavioral Economics
subject: transition
subject: competition
subject: reconstruction
subject: management

description: Socialism as economic and social model turned out to be unsustainable in a long term period, so by the end of 20th century socialism as a system was unable to remain alternative to a market oriented economic model. Many countries for those reasons entered the process of transition, which represents transformation of former socialistic economies into Market economies. In front of us is also an imperative of change of economic model and prevailing property relations. Transition represents transformation of national, economic and psychological structure of society. In the focus is private property which represents the symbol of individualism and efficiacy which implies that employees in our companies would have a motivation to work more efficiently and effectivly, for it is the system which motivates people who know to work and accept the risk.
Aegoschema obesum
Creators: name: Monné, Miguel A.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Aegoschema
Aegoschema obesum

description: 4. Aegoschema obesum (Bates, 1861)
 Type locality — Brazil, Pará. (MNHN). Distribution — Ecuador, French Guiana, Brazil (Pará). Aegomorphus obesus Bates, 1861: 150; Prudhomme, 1906: 37 (distr.).
 Aegomorphus adspersus var. obesus; Gemminger & Harold, 1873: 3141 (cat.).
 Aegoschema adspersa var. obesus; Gilmour, 1965: 607 (cat.).
 Aegoschema obesum; Monné, 1994e: 37 (cat.).
description: Published as part of Monné, Miguel A., 2005, Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part II. Subfamily Lamiinae, pp. 1-760 in Zootaxa 1023 (1) on pages 1-760, DOI: 10.11646/zootaxa.946.1.1, http://zenodo.org/record/5049553
Local models of stellar convection: Reynolds stresses and turbulent heat transport
Creators: name: Käpylä, P. J.
name: Korpi, M. J.
name: Tuominen, I.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study stellar convection using a local three-dimensional MHD model, with which we investigate the influence of rotation and large-scale magnetic fields on the turbulent momentum and heat transport. The former is studied by computing the Reynolds stresses, the latter by calculating the correlation of velocity and temperature fluctuations, both as functions of rotation and latitude. We find that the horisontal correlation, Q_(theta phi), capable of generating horisontal differential rotation, is mostly negative in the southern hemisphere for Coriolis numbers exceeding unity, corresponding to equatorward flux of angular momentum in accordance with solar observations. The radial component Q_(r phi) is negative for slow and intermediate rotation indicating inward transport of angular momentum, while for rapid rotation, the transport occurs outwards. Parametrisation in terms of the mean-field Lambda-effect shows qualitative agreement with the turbulence model of Kichatinov & Rüdiger (1993) for the horisontal part H \propto Q_(theta phi)/cos(theta), whereas for the vertical part, V \propto Q_(r phi)/sin(theta), agreement only for intermediate rotation exists. The Lambda-coefficients become suppressed in the limit of rapid rotation, this rotational quenching being stronger for the V component than for H. We find that the stresses are enhanced by the presence of the magnetic field for field strengths up to and above the equipartition value, without significant quenching. Concerning the turbulent heat transport, our calculations show that the transport in the radial direction is most efficient at the equatorial regions, obtains a minimum at midlatitudes, and shows a slight increase towards the poles. The latitudinal heat transport does not show a systematic trend as function of latitude or rotation.
description: 26 pages, 20 figures, final published version. For a version with higher resolution figures, see http://cc.oulu.fi/~pkapyla/publ.html
Optical Kerr soliton crystal microcomb source for RF photonic fractional differentiation
Creators: name: Tan, Mengxi
name: Xu, Xingyuan
name: Corcoran, Bill
name: Wu, Jiayang
name: Boes, Andreas
name: Nguyen, Thach G.
name: Chu, Sai T.
name: Little, Brent E.
name: Morandotti, Roberto
name: Mitchell, Arnan
name: Moss, David J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We report a photonic radio frequency (RF) fractional differentiator based on an integrated Kerr micro-comb source. The micro-comb source has a free spectral range (FSR) of 49 GHz, generating a large number of comb lines that serve as a high-performance multi-wavelength source for the differentiator. By programming and shaping the comb lines according to calculated tap weights, arbitrary fractional orders ranging from 0.15 to 0.90 are achieved over a broad RF operation bandwidth of 15.49 GHz. We experimentally characterize the frequency-domain RF amplitude and phase responses as well as the temporal responses with a Gaussian pulse input. The experimental results show good agreement with theory, confirming the effectiveness of our approach towards high-performance fractional differentiators featuring broad processing bandwidth, high reconfigurability, and potentially greatly reduced size and cost.
description: 7 pages, 7 figures, 47 references
Wollishofer Pfahlbauer - Wollishofer Blog
Creators: name: Brändli, Sebastian
Publisher: name: Zentralbibliothek Zürich
Year: 2021
Subjects: subject: 930 Geschichte des Altertums bis ca. 499, Archäologie
subject: Pfahlbau
subject: Archäologie
subject: Zunft Wollishofen
subject: Zürich-Wollishofen

description: Ein Blog zu Geschichte und Quartierleben des Zürcher Stadtquartiers Wollishofen auf wollipedia.ch. Mit Texten von Sebastian Brändli (SB) und Ansichtskarten aus der Sammlung von Markus Zimmermann (MZ).
Matter-wave gap solitons in atomic bandgap structures
Creators: name: Ostrovskaya, Elena A.
name: Kivshar, Yuri S.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We demonstrate that a Bose-Einstein condensate in an optical lattice forms a reconfigurable matter-wave structure with a band-gap spectrum, which resembles a nonlinear photonic crystal for light waves. We study in detail the case of a two-dimensional square optical lattice and show that this atomic bandgap structure allows nonlinear localization of atomic Bloch waves in the form of two-dimensional matter-wave gap solitons.
description: Printing the .ps file produces better quality figures
Dependence of Spicule Properties on the Magnetic Field -- Results from Magnetohydrodynamics Simulations
Creators: name: Kesri, Kartav
name: Dey, Sahel
name: Chatterjee, Piyali
name: Erdelyi, Robertus
Publisher: name: arXiv
Year: 2024
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Solar spicules are plasma jets observed in the interface region between the visible solar surface and the corona. At any given time, there are millions of spicules present all over the Sun. While various models attempt to elucidate their origin and characteristics, here, we consider the one driven by the magneto-convection undulations. The radiative magneto-hydrodynamical (rMHD) equations are solved using PENCIL CODE with a spatial resolution of 16 km using various magnetic field strengths. The obtained rMHD simulation data are investigated to unveil the various trends in spicular properties as function of the applied magnetic fields. The important outcome of this study is the finding of a consistent reduction in both the number density and the maximum height reached by spicules as magnetic field strength increases. We also use parabolic fitting on time-distance curves of spicules that are taller than $75^\mathrm{th}$ percentile in the distribution, in order to find a relation between deceleration of the spicule tip and the magnetic field strength. Our results offer insights into the response of solar spicules to magnetic field strength.
description: 12 Pages, 12 Figures, 1 Table
Pachyprotasis flavocapita Wei & Zhong 2002
Creators: name: Zhong, Yihai
name: Wei, Meicai
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Tenthredinidae
Pachyprotasis
Pachyprotasis flavocapita

description: Pachyprotasis flavocapita Wei & Zhong, 2002
(Figs 7, 8, 43, 60, 77, 89, 108)
Pachyprotasis flavocapita Wei & Zhong, 2002: 224–225, fig. 225. [female], type locality: Baiyunshan, Songxian (112°06ˏE, 34°15ˏN, alt. 1800 m), Henan, China.
Material examined. Holotype: Ƥ, Mt. Baiyun, Songxian, Henan Province (112°06ʹE, 34°15ʹN, alt. 1800 m), 24.07.2001, Yihai Zhong leg.; paratypes, 2 Ƥ, Honghuaduo, Shennongjia, Hubei Province (110°43ʹE, 31°43ʹN, alt. 1200 m), 0 3.07.2007, Wei Xiao leg.
Distribution. China (Henan, Hubei) (Fig. 108).
Female (Figs 7, 8): Body length 11 mm. Pale yellow, black are: posterior half of frons continuing with most basal part of postocellar area, a faint middle spot on upper part of the occiput, antenna except ventral sides of pedicel and scape, three large spots each on mesonotal middle and lateral lobe, lower part of parapsis, some faint spots on metanotum, 2 lateral bands on each base of terga 4–8. Legs muddy yellow, black are: a narrow stripe each on dorsal part of four front legs from apical half of femur to claw, a narrow apical stripes each on inner and outer side of metafemur, an inner band on metatibia, apex of metatibia, metatarsus entirely. Wings hyaline, fore wing vein C, R1, 2r and stigma pale green, other veins black. Punctures on dorsal part of head shallow and scattered, interspaces with microsculpture, luster distinct; punctures on upper part of mesepisternum shallow and minute, rather dense, on lower part extremely minute, shallow and indistinct, interspaces polished, strongly shiny. Median fovea widely and shallowly reaching to median ocellus; postocellar area slightly elevated, 2 times as broad as long (Figs 43, 60); antenna shorter than combined length of thorax and abdomen, flagellomere 1 about 1.1 times length of flagellomere 2; mesoscutellum prismaticly and strongly elevated in lateral view (Fig. 36). Ovipositor sheath distinctly shorter than hind tarsomere 1 in lateral view, valvula 3 round at apex and longer than valvifer 2 in lateral view. Lancet with 23 serrulae (Fig. 77), base of each serrula distinctly elevated, middle serrula each with 2 basal denticles and 7–10 distal denticles (Fig. 89).
Male. Unknown.
description: Published as part of Zhong, Yihai & Wei, Meicai, 2012, A review of the Pachyprotasis pallidistigma species group (Hymenoptera: Tenthredinidae) from China, with descriptions of three new species, pp. 1-38 in Zootaxa 3242 on page 6, DOI: 10.5281/zenodo.280476
Undo and Redo Support for Replicated Registers
Creators: name: Stewen, Leo
name: Kleppmann, Martin
Publisher: name: arXiv
Year: 2024
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: Undo and redo functionality is ubiquitous in collaboration software. In single user settings, undo and redo are well understood. However, when multiple users edit a document, concurrency may arise, leading to a non-linear operation history. This renders undo and redo more complex both in terms of their semantics and implementation. We survey the undo and redo semantics of current mainstream collaboration software and derive principles for undo and redo behavior in a collaborative setting. We then apply these principles to a simple CRDT, the Multi-Valued Replicated Register, and present a novel undo and redo algorithm that implements the undo and redo semantics that we believe are most consistent with users' expectations.
description: 6 pages, 3 figures
New ASKAP Radio Supernova Remnants and Candidates in the Large Magellanic Cloud
Creators: name: Bozzetto, Luke M.
name: Filipović, Miroslav D.
name: Sano, H.
name: Alsaberi, R. Z. E.
name: Barnes, L. A.
name: Bojičić, I. S.
name: Brose, R.
name: Chomiuk, L.
name: Crawford, E. J.
name: Dai, S.
name: Ghavam, M.
name: Haberl, F.
name: Hill, T.
name: Hopkins, A. M.
name: Ingallinera, A.
name: Jarrett, T.
name: Kavanagh, P. J.
name: Koribalski, B. S.
name: Kothes, R.
name: Leahy, D.
name: Lenc, E.
name: Leonidaki, I.
name: Maggi, P.
name: Maitra, C.
name: Matthew, C.
name: Payne, J. L.
name: Pennock, C. M.
name: Points, S.
name: Reid, W.
name: Riggi, S.
name: Rowell, G.
name: Sasaki, M.
name: Safi-Harb, S.
name: van Loon, J. Th.
name: Tothill, N. F. H.
name: Urošević, D.
name: Zangrandi, F.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a new Australian Square Kilometre Array Pathfinder (ASKAP) sample of 14 radio Supernova Remnant (SNR) candidates in the Large Magellanic Cloud (LMC). This new sample is a significant increase to the known number of older, larger and low surface brightness LMC SNRs. We employ a multi-frequency search for each object and found possible traces of optical and occasionally X-ray emission in several of these 14 SNR candidates. One of these 14 SNR candidates (MCSNR J0522-6543) has multi-frequency properties that strongly indicate a bona fide SNR. We also investigate a sample of 20 previously suggested LMC SNR candidates and confirm the SNR nature of MCSNR J0506-6815. We detect lower surface brightness SNR candidates which were likely formed by a combination of shock waves and strong stellar winds from massive progenitors (and possibly surrounding OB stars). Some of our new SNR candidates are also found in a lower density environments in which SNe type Ia explode inside a previously excavated interstellar medium (ISM).
description: accepted for publication in MNRAS, this version corrects arXiv metadata only
Alphus capixaba Marinoni & Martins 1978
Creators: name: Monné, Miguel A.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Alphus
Alphus capixaba

description: 1. Alphus capixaba Marinoni & Martins, 1978
Type locality — Brazil, Espírito Santo: Linhares. (MZSP). Distribution — Brazil (Espírito Santo, Rio de Janeiro).
 Alphus capixaba Marinoni & Martins, 1978: 179, fig. 5; Martins, 1985: 178; Restello et al., 2001: 296.
description: Published as part of Monné, Miguel A., 2005, Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part II. Subfamily Lamiinae, pp. 1-760 in Zootaxa 1023 (1) on pages 1-760, DOI: 10.11646/zootaxa.946.1.1, http://zenodo.org/record/5049553
The Importance and Challenges of the Lisbon Strategy for Economy Reforms in Serbia
Creators: name: Micic, Vladimir
name: Micic, Vladimir
Publisher: name: Unknown
Year: 2009
Subjects: subject: International Development
subject: the lisbon strategy
subject: the copenhagen criteria
subject: Serbia

description: The lisbon process refers to the joint movement of member states to follow explicitly defined goals through implementing a number of measures. deviations from the set goals, have led to the audit lisbon strategy and introduction of new instruments of its implementation. the tendency to a greater extent, or more fully achieve the goals lisbon strategy, for countries whose strategic commitment to become a member of the eu, like serbia, means effective of economic reform and faster implementation of the criteria for membership in the eu. implementation of the lisbon strategy goals for serbia is complementary to meet the economic criteria for membership in the eu in copenhagen. lisabonskih reaching goals and fulfilling the economic criteria of copenhagen, the economy becomes more willing to serbia may face competition and market forces and the most competitive economy in the world.
Life Cycle Assessment of the UBC Thunderbirds teams, events, and venues
Creators: name: Dolf, Matt
Publisher: name: UBC Centre for Sport and Sustainability
Year: 2012

description: This study was commissioned by UBC Athletics & Recreation (UBC A&R). The goal was to carry out a Life Cycle Assessment (LCA) and provide UBC A&R with a tool to assess and manage the environmental impacts of their varsity “Thunderbird” teams, venues, and events. A principal aim of this study was to apply rigorous evaluation methods in a resource-efficient manner to identify major impacts from UBC A&Rs operations, stakeholders, and supply chain. The study uses the IMPACT 2002+ LCA method to determine cradle–to–grave impacts across the environmental damage categories of climate change (Carbon Footprint), human health, water withdrawal, ecosystem quality, and resource depletion. The unit of analysis was the provision of an entertainment / athletic experience to participants of the UBC A&R Thunderbird sports events for the 2011/2012 season. The results showed a total annual footprint of 8,300 tonnes of carbon dioxide equivalents. The largest contributors were venues (72%) and travel (24%) — with food, office, waste, communication, and accommodation combining for the remaining 4%. The results, data, and methodology presented in this report have been incorporated into the Quantis SUITE 2.0 LCA software tool. General recommendations for impact mitigation opportunities and ongoing data collection strategies are also included. UBC A&R will use this to track and report on environmental performance. This approach represents a new level of sophistication for sustainability management and assessment of the events industry.
An update on ARCHES for Science
Creators: name: Patterson, Catherine
Publisher: name: Zenodo
Year: 2022
Subjects: ARCHES, Science Data

description: The talk was given at the workshop "Transatlantic cooperation in Heritage Science", Cooperation theme 3: Opening Heritage Science Data at the Global Level, held virtually on 6th October 2021.
description: This document reflects only the author(s)'s view and the Agency and the European Commission is not responsible for any use that may be made of the information it contains.
title: Basin Inventory Birrindudu Basin
Creators: name: L., Carr
name: R., Korsch
Publisher: name: Commonwealth of Australia (Geoscience Australia)
Year: 2024
Subjects: subject: EARTH SCIENCES
subject: PHYSICAL SCIENCES
subject: EFTF - Exploring for the Future
subject: Onshore Basins
subject: Birrindudu Basin
subject: Energy
subject: Published_External

description: Geoscience Australia’s Exploring for the Future program provides precompetitive information to inform decision-making by government, community and industry on the sustainable development of Australia's mineral, energy and groundwater resources. By gathering, analysing and interpreting new and existing precompetitive geoscience data and knowledge, we are building a national picture of Australia’s geology and resource potential. This leads to a strong economy, resilient society and sustainable environment for the benefit of all Australians. This includes supporting Australia’s transition to net zero emissions, strong, sustainable resources and agriculture sectors, and economic opportunities and social benefits for Australia’s regional and remote communities. The Exploring for the Future program, which commenced in 2016, is an eight year, $225m investment by the Australian Government. The name ‘Birrindudu Basin’ was first introduced by Blake et al. (1975) and Sweet (1977) for a succession of clastic sedimentary rocks and carbonates, originally considered to be Paleoproterozoic to Neoproterozoic in age, and overlain by the Neoproterozoic Victoria Basin (Dunster et al., 2000), formerly known as the Victoria River Basin (see Sweet, 1977).