cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Stenus duplicigutta Puthz 2016, nov.sp.
Creators: name: Puthz, Volker
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Stenus
Stenus duplicigutta

description: Stenus duplicigutta nov.sp.
(Abb. 19, 108, 279)
Material: Holotypus (♀) und 1♀ - Paratypus: BOLIVIEN: La Paz Prov., Zongo Valley, 3200m, 68 o 07.35’S, 16 o 09.62’W, elvin/shrub litter, 20.I.2001, R. Anderson: im KSEM.
Beschreibung: Makropter,schwarz,ElytrenmitbräunlichemAnflugsowiemit einer gelblichen Makel dorsal im hinteren Drittel, die seitlich mit einer weiteren, nach vorne gerückten, ebensolchen Makel verbunden ist (Abb 19), ziemlich glänzend; Stirn grob und sehr dicht, Pronotum sehr grob, dicht, kurz zusammenfliessend punktiert, Elytren grob, furchig skulptiert/punktiert, Abdomen wenig fein, wenig dicht punktiert, Beborstung mässig lang, anliegend. Kiefertaster gelblich. Fühlerbasis hellbraun, die Keule etwas dunkler. Beine rötlichbraun, Tarsen dunkler. Clypeus schwarz, Oberlippe dunkelbraun, mässig dicht beborstet, Abdomen seitlich breit gerandet, Tarsen ungelappt. Abdomenspitze deutlich genetzt, vorderes Abdomen glatt, Punktzwischenräume der Elytren fein skulptiert.
Länge: 4,0- 4,8mm (Vorderkörperlänge: 2,2-2,3mm).
PM des HT: HW: 37,5; DE: 21; PW: 31; PL: 31; EW: 41; EL: 37; SL: 29.
Männchen: Unbekannt.
Weibchen: 8. Sternit (Abb. 279). Valvifer apikal gesägt. 10. Tergit am Hinterrand abgerundet.
Differenzial diagnose: Diese neue Art ist die Schwesterart des S. pecki nov.sp.; sie stimmt mit ihm in fast allen Punkten überein, die Elytren sind aber schmäler und deutlicher trapezoid, die Skulptur nicht ganz so tief eingegraben und das vordere Abdomen ungenetzt; Tergit 7 (Abb. 108). - Möglicherweise gehört diese Art in die Variationsbreite des S. pecki; dies kann aber erst nach Kenntnis des zugehörigen Männchens entschieden werden. Zur Unterscheidung von den übrigen ähnlichen Arten vergleiche man die Bestimmungstabelle.
Etymologie: Wegen ihrer doppelten Elytrenmakeln nenne ich diese neue Art " duplicigutta " (Lat. = doppelt gemakelt).
description: Published as part of Puthz, Volker, 2016, Übersicht über die neotropischen Arten der Gattung Stenus LATREILLE mit seitlich gerandetem Abdomen und ungelappten Tarsen (Coleoptera, Staphylinidae) 350. Beitrag zur Kenntnis der Steninen, pp. 1551-1634 in Linzer biologische Beiträge 48 (2) on pages 1586-1587, DOI: 10.5281/zenodo.5355748
Spin-Hall effect and spin-coherent excitations in a strongly confined two-dimensional hole gas
Creators: name: Kleinert, P.
name: Bryksin, V. V.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Based on a rigorous quantum-kinetic approach, spin-charge coupled drift-diffusion equations are derived for a strongly confined two-dimensional hole gas. An electric field leads to a coupling between the spin and charge degrees of freedom. For weak spin-orbit interaction, this coupling gives rise to the intrinsic spin-Hall effect. There exists a threshold value of the spin-orbit coupling constant that separates spin diffusion from ballistic spin transport. In the latter regime, undamped spin-coherent oscillations are observed. This result is confirmed by an exact microscopic approach valid in the ballistic regime.
description: 10 pages, 2 figures
Elicitation - switch-reference and time
Creators: name: Soria Pérez, Rolando
name: Clem, Emily
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2024
Subjects: subject: amc

description: This bundle contains recordings and associated notes from an elicitation session conducted by Emily Clem with Rolando Soria Pérez. Topics covered include the expression of time, attitude reports, and negation.
Lack of Finite Characterizations for the Distance-based Revision
Creators: name: Ben-Naim, Jonathan
Publisher: name: arXiv
Year: 2006
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: Lehmann, Magidor, and Schlechta developed an approach to belief revision based on distances between any two valuations. Suppose we are given such a distance D. This defines an operator |D, called a distance operator, which transforms any two sets of valuations V and W into the set V |D W of all elements of W that are closest to V. This operator |D defines naturally the revision of K by A as the set of all formulas satisfied in M(K) |D M(A) (i.e. those models of A that are closest to the models of K). This constitutes a distance-based revision operator. Lehmann et al. characterized families of them using a loop condition of arbitrarily big size. An interesting question is whether this loop condition can be replaced by a finite one. Extending the results of Schlechta, we will provide elements of negative answer. In fact, we will show that for families of distance operators, there is no "normal" characterization. Approximatively, a normal characterization contains only finite and universally quantified conditions. These results have an interest of their own for they help to understand the limits of what is possible in this area. Now, we are quite confident that this work can be continued to show similar impossibility results for distance-based revision operators, which suggests that the big loop condition cannot be simplified.
Subsonic organic vapor flow past a circular cylinder
Creators: name: Cinnella, Paola
name: Matar, Camille
name: Gloerfelt, Xavier
name: Reinker, Felix
name: Der Wiesche, Stefan Aus
Publisher: name: Technical University of Munich
Year: 2021

description: Numerical simulations of subsonic flows past a circular cylinder of an organic fluid (NovecTM 649) at various operating conditions are reported in the aim of complementing recent experimental investigations conducted in the CLOWT wind tunnel at Muenster University of Applied Sciences. The configuration is representative of a rotatable Pitot cylinder probe in the crossflow of an organic vapor stream. The present results, obtained by solving the steady Reynolds-Averaged Navier-Stokes equations supplemented by the one-equation model of Spalart and Allmaras, are in reasonably good agreement with the experiments. The results show that non-ideal gas effects play a minor role in the range of conditions considered in the experiments, and that discrepancies with respect to air flow at the same Mach and Reynolds number are an effect of the different isentropic exponents.
A comprehensive review on protection strategies to mitigate the impact of renewable energy sources on interconnected distribution networks.pdf
Creators: name: Usama, Muhammad
name: Mokhlis, Hazlie
name: Moghavvemi, M
name: Nadzirah Mansor, Nurulafiqah
name: A. Alotaibi, Majed
name: Muhammad, Munir Azam
name: Akram Bajwa, Abdullah
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 400803
subject: Electrical energy generation (incl. renewables, excl. photovoltaics)
classificationCode: 400804
subject: Electrical energy storage
classificationCode: 400805
subject: Electrical energy transmission, networks and systems
classificationCode: 400808
subject: Photovoltaic power systems
classificationCode: 400899
subject: Electrical engineering not elsewhere classified

description: Technology advancement in the last few decades allows large penetration of renewable energy resources in the distribution network (DN). The integration of such resources has shown a substantial impact on DN through power loss reduction and improved network reliability. Besides this, the existing protection system has encountered coordination challenges due to the bidirectional power flow, different types and capacity of generation sources, and changes in fault levels due to network operating modes (grid-connected or islanded). Such conditions may cause the relays to malfunction and imperil the effectiveness of the existing protection scheme. Therefore, an efficient and robust protection coordination scheme is imperative to avoid network reliability and stability issues to the grid. This review paper presents a comparative analysis of various protection techniques implemented to alleviate the impact of integrated resources into DN. Moreover, a comparison of classical and modified protection approaches in terms of advantages, shortcomings, and implementation costs is presented. The prime objective of this study is to highlight the prominence of utilizing user-defined programmable relays for modern DNs. Moreover, recommendations are presented by considering the application of user-defined relay characteristics that can be proved as a robust protection scheme to cope with the protection challenges in existing and future power systems developments.
Dynamics on the number of prime divisors for additive arithmetic semigroups
Creators: name: Wang, Biao
Publisher: name: arXiv
Year: 2021
Subjects: subject: Number Theory (math.NT)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37A44, 11R45, 11K06

description: In 2020, Bergelson and Richter gave a dynamical generalization of the classical Prime Number Theorem, which has been generalized by Loyd in a disjoint form with the Erdős-Kac Theorem. These generalizations reveal the rich ergodic properties of the number of prime divisors of integers. In this article, we show a new generalization of Bergelson and Richter's Theorem in a disjoint form with the distribution of the largest prime factors of integers. Then following Bergelson and Richter's techniques, we will show the analogues of all of these results for the arithmetic semigroups arising from finite fields as well.
description: 19 pages. To appear in Finite Fields and Their Applications
Stenus fenestralis FAUVEL zum Verwechseln 1891
Creators: name: Puthz, Volker
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Stenus
Stenus fenestralis

description: Stenus fenestralis FAUVEL, 1891
(Abb. 45, 111, 282, 311)
Stenus fenestralis FAUVEL, 1891:94; PUTHZ, 1969: 7; PUTHZ 1987: 411.
Stenus fenestrifer PUTHZ, 1987: 406 nov. syn.
Stenus fenestellifer PUTHZ, 1987: 408 nov. syn.
Material: VENEZUELA: ♂ - Lektotypus und 1♂, 2♀♀ - Paralektotypen: Colonie Tovar, E. Simon (IRSNB); 1♀: Merida, Merida, La Mantaña Sta., 2436m, 1.V.1908, Finnamore & Baxfield (TMB); 1♀: Caracas, Quebrada Mariaperez oberhalb Strasse Cota Mil, 1000m, Rand einer kleinen Talsperre, 26.IV.1984, H. Franz (cP); 2♂♂, 1 ♀: Lara, 10 km SE Sanaré, 1740m, slash/treefall litter, 18.V.1998, Ashe & al. (KSEM, cP). KOLUMBIEN: 5♂♂, 5♀♀: Magdalena, San Lorenzo, 41 km S Sta Marta, 7000 feet, 1.V.1973, Howden & Campbell (Typen von S. fenestrifer; CNC, cP); 1♀: nördliche Sierra Nevada de Sta Marta, San Lorenzo, 2200m, aus niedriger Vegetation, 28.IV.1986, H.-G. Müller (cP); 2♂♂: Inderena Sta in Cerro San Lorenzo, 1700-2200m, 9.- 12.VII.1970, B. Malkin (FMCh); 2♂♂: Cauca, Patico, 22 km E of Papayan, 2000m, along rapid mountain rock stream, 19.-20.IX.1968, B. Malkin (FMCh). ECUADOR: 1♀ (ohne nähere Angabe), 1882-1883, Siemiradski (HT von S. fenestellifer; MNHNP).
Bemerkungen: Diese Art ist variabler als zuerst vermutet. Die Proportionen EW: EL variieren zwischen 1.04- 1.21, und auch die Elytrenmakeln sind nicht bei jedem Stück gleich gross (Abb. 45 z. B.). Da sich aber im Aedoeagus und im Umriss des 8. Tergits (leichte apikale Ausrandung) und 8. Sternits der Weibchen (Abb. 282) keine stringenten Unterschiede finden lassen, werden S. fenestrifer und S. fenestellifer hier mit eingezogen. 7. Tergit (Abb. 111), Apex des Medianlobus (Abb. 311).
description: Published as part of Puthz, Volker, 2016, Übersicht über die neotropischen Arten der Gattung Stenus LATREILLE mit seitlich gerandetem Abdomen und ungelappten Tarsen (Coleoptera, Staphylinidae) 350. Beitrag zur Kenntnis der Steninen, pp. 1551-1634 in Linzer biologische Beiträge 48 (2) on pages 1599-1600, DOI: 10.5281/zenodo.5355748
Couplings and spectra in modular inflation
Creators: name: Park, Wan-Il
name: Stewart, Ewan D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We analyze how the spectrum of perturbations produced in a multi-component modular inflation model proposed by Kadota and Stewart depends on couplings between the two moduli. Although some simple direct couplings give essentially the same results as the original model, $dn/d\ln k \propto n-1$, simple indirect couplings produce a power law spectrum, $n-1 = \textrm{constant}$, which can naturally be close to scale invariant.
description: 11 pages, format changed, some corrections of formulas
Elicitation - switch-reference and time
Creators: name: Piño Bonangué, José
name: Clem, Emily
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2024
Subjects: subject: amc

description: This bundle contains recordings and associated notes from an elicitation session conducted by Emily Clem with José Piño Bonangué. Topics covered include the expression of time in switch-reference constructions and attitude reports.
A Defeasible Calculus for Zetetic Agents
Creators: name: Millson, Jared
Publisher: name: arXiv
Year: 2020
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Computation and Language (cs.CL)
subject: Logic (math.LO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: The study of defeasible reasoning unites epistemologists with those working in AI, in part, because both are interested in epistemic rationality. While it is traditionally thought to govern the formation and (with)holding of beliefs, epistemic rationality may also apply to the interrogative attitudes associated with our core epistemic practice of inquiry, such as wondering, investigating, and curiosity. Since generally intelligent systems should be capable of rational inquiry, AI researchers have a natural interest in the norms that govern interrogative attitudes. Following its recent coinage, we use the term "zetetic" to refer to the properties and norms associated with the capacity to inquire. In this paper, we argue that zetetic norms can be modeled via defeasible inferences to and from questions---a.k.a erotetic inferences---in a manner similar to the way norms of epistemic rationality are represented by defeasible inference rules. We offer a sequent calculus that accommodates the unique features of "erotetic defeat" and that exhibits the computational properties needed to inform the design of zetetic agents. The calculus presented here is an improved version of the one presented in Millson (2019), extended to cover a new class of defeasible erotetic inferences.
Global Spiral Density Wave Modes in Protoplanetary Disks: Morphology of Spiral Arms
Creators: name: Chen, Enze
name: Yu, Si-Yue
name: Ho, Luis C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We analyze two-armed global spiral density wave modes generated by gravitational instability in razor-thin, non-viscous, self-gravitating protoplanetary disks to understand the dependence of spiral arm morphology (pitch angle $α$ and amplitude) on various disk conditions. The morphologies of the resulting spiral density wave modes closely resemble observations. Their pitch angles and pattern speeds are insensitive to the boundary conditions adopted. Gaussian disks exhibit more tightly wound spirals (smaller pitch angle) than power law disks under the same conditions. We find that at a fixed disk-to-star mass ratio ($M_d/M_*$), pitch angle increases with average Toomre's stability parameter ($\overline Q$) or average disk aspect ratio ($\overline h$). For a given $\overline Q$, density wave modes with higher $M_d/M_*$ have larger pitch angles, while the behavior reverses for a given $\overline h$. The interdependence between pitch angle and disk properties can be roughly approximated by $α\propto c_s^2/M_d$, where $c_s$ is the sound speed. Our gravitational instability-excited spiral density waves can be distinguished from planet-launched spirals: (1) massive cool disks have spiral pitch angle falling with radius, while low-mass hot disks have spiral pitch angle rising with radius; (2) the profile of spiral amplitude presents several dips and bumps. We propose that gravitational instability-excited density waves can serve as an alternative scenario to explain the observed spiral arms in self-gravitating protoplanetary disks.
description: 17 pages, 11 figures, accepted for publication in ApJ
MPEC 2024-A23 : 2024 AJ
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 AJ

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Closed ideals in some algebras of analytic functions
Creators: name: Bouya, Brahim
Publisher: name: arXiv
Year: 2008
Subjects: subject: Complex Variables (math.CV)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: We obtain a complete description of closed ideals of the algebra $\mathcal{D}\cap \mathrm{lip}_α},$ $0
description: 19 pages
Accuracy of relativistic Cowling approximation in protoneutron star asteroseismology
Creators: name: Sotani, Hajime
name: Takiwaki, Tomoya
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The relativistic Cowling approximation, where the metric perturbations are neglected during the fluid oscillations, is often adopted for considering the gravitational waves from the protoneutron stars (PNSs) provided via core-collapse supernova explosions. In this study, we evaluate how the Cowling approximation works well by comparing the frequencies with the Cowling approximation to those without the approximation. Then, we find that the behavior of the frequencies with the approximation is qualitatively the same way as that without the approximation, where the frequencies with the approximation can totally be determined within $\sim 20\%$ accuracy. In particular, the fundamental mode with the Cowling approximation is overestimated. In addition, we also discuss the damping time of various eigenmodes in gravitational waves from the PNSs, where the damping time for the PNSs before the avoided crossing between the $f$- and $g_1$-modes, is quite different from that for cold neutron stars, but it is more or less similar to that for cold neutron stars in the later phase. The damping time is long enough compared to the typical time interval of short-Fourier transformation that often used in the analysis, and that ideally guarantees the validity of the transformation.
Probing clumpy pasts of galaxies from AGB stars
Creators: name: Bekki, K.
name: Cioni, M. -R. L.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Recent morphological studies of galaxies by the {\it Hubble Space Telescope (HST)} have revealed that actively star-forming galaxies at intermediate and high redshifts ($z=0.5-2.0$) have very clumpy and irregular distributions of stars. It is however unclear whether and how these clumpy galaxies evolve into the present spiral and elliptical galaxies with regular shapes. We here propose that spatial distributions of AGB stars, probing the different mean age and metallicity of the underlying stellar population, can provide vital clues to the evolution of these clumpy galaxies, in particular, those at intermediate redshifts. In order to demonstrate this proposal to be quite promising, we show the results of test-particle simulations on the long-term dynamical evolution of unbound groups of AGB stars (``stellar clumps''), which correspond to the successors of star-forming clumps at intermediate redshifts, in isolated and interacting galaxies. We particularly show that azimuthal distributions of AGB stars dispersed from stellar clumps as a result of gravitational interaction with their host galaxies can be still inhomogeneous several Gyrs after stellar clump formation for some models. We also show that the inhomogeneities in the azimuthal distributions of dispersed AGB stars can more quickly disappear in stellar clumps with larger sizes and higher velocity dispersions. These results suggest that if apparently clumpy structures of galaxies at intermediate redshifts are due to stars in unbound or weakly bound clusters, spatial distributions of AGB stars can have fossil records on past clumpy structures of galaxies.
description: 5 pages, 5 figurs, accepted in MNRAS Letters
Measurement of high-Q^2 deep inelastic scattering cross sections with a longitudinally polarised positron beam at HERA
Creators: name: ZEUS Collaboration
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The cross sections for charged and neutral current deep inelastic scattering in e^+p collisions with a longitudinally polarised positron beam have been measured using the ZEUS detector at HERA. The results, based on data corresponding to an integrated luminosity of 23.8 pb^-1 at sqrt(s) = 318 GeV, are given for both e^+p charged current and neutral current deep inelastic scattering for both positive and negative values of the longitudinal polarisation of the positron beam. Single differential cross sections are presented for the kinematic region Q^2 > 200 GeV^2 . The measured cross sections are compared to the predictions of the Standard Model. A fit to the data yields sigma^CC (P_e = -1) = 7.4 +/- 3.9 (stat.) +/- 1.2 (syst.) pb, which is consistent within two standard deviations with the absence of right-handed charged currents in the Standard Model.
description: 28 pages, 5 figures, accepted by Physics Letters B. Updated with minor changes to the text and figure 5 requested by the journal referee
From 1885 to nowadays: a (short) techno-historical review of solar organic Rankine cycle systems
Creators: name: Dickes, Rémi
name: Desideri, Adriano
name: Casati, Emiliano
name: Quoilin, Sylvain
Publisher: name: Technical University of Munich
Year: 2021

description: Since the first solar ORC system built by Charles Tellier in 1885, hundreds of solar ORC systems have been imagined, built, tested, operated and, in most cases, abandoned along the past century. Aiming to emphasize the technical maturity of these existing but yet little-known works, this paper presents some of the most innovative technological developments of SORC thanks to six existing examples. These systems have been selected to cover various sizes, technology and applications, from the end of XIXth century to nowadays.
Formation of a tiny flux rope in the center of an active region driven by magnetic flux emergence, convergence, and cancellation
Creators: name: Zheng, Ruisheng
name: Chen, Yao
name: Wang, Bing
name: Song, Hongqiang
name: Cao, Wenda
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Flux ropes are generally believed to be core structures of solar eruptions that are significant for the space weather, but their formation mechanism remains intensely debated. We report on the formation of a tiny flux rope beneath clusters of active region loops on 2018 August 24. Combining the high-quality multiwavelength observations from multiple instruments, we studied the event in detail in the photosphere, chromosphere, and corona. In the source region, the continual emergence of two positive polarities (P1 and P2) that appeared as two pores (A and B)is unambiguous. Interestingly, P2 and Pore B slowly approached P1 and Pore A, implying a magnetic flux convergence. During the emergence and convergence, P1 and P2 successively interacted with a minor negative polarity (N3) that emerged, which led to a continuous magnetic flux cancellation. As a result, the overlying loops became much sheared and finally evolved into a tiny twisted flux rope that was evidenced by a transient inverse S-shaped sigmoid, the twisted filament threads with blueshift and redshift signatures, and a hot channel. All the results show that the formation of the tiny flux rope in the center of the active region was closely associated with the continuous magnetic flux emergence, convergence, and cancellation in the photosphere. Hence, we suggest that the magnetic flux emergence, convergence, and cancellation are crucial for the formation of the tiny flux rope.
Evaluation of reversible screw compressors with an adaptable built-in volume ratio in reversible heat pumps
Creators: name: Kaufmann, Florian
name: Schifflechner, Christopher
name: Dawo, Fabian
name: Wieland, Christoph
name: Spliethoff, Hartmut
Publisher: name: Technical University of Munich
Year: 2021
Subjects: ORC; reversible heat pump; screw compressor; variable BVR

description: Reversible heat pumps consisting of a high-temperature heat pump and an Organic Rankine Cycle have been subject to increasing academic interest in recent years. Early experimental studies suggested the use of separate compression and expansion devices due to different process conditions in both operating modes. While this concept enables higher machine efficiencies, it also drives up the system cost and can make the concept economically unattractive. In recent years, twin-screw compressors with an adaptable built-in volume ratio (BVR) have become available, allowing efficient machine operation over a wider range of operating conditions. Since this type of compressor is inherently reversible (allowing operation as an expander), it should be considered for use in reversible heat pumps with a single compressor/expander unit. This work makes use of a recently developed model for volumetric screw compressors and expanders to evaluate the potential of machines with an adaptable BVR. A reversible heat pump with a single compressor/expander unit is deployed within a geothermal CHP plant model and annual simulations are performed based on the adapted load profiles of an existing district heating plant. The yearly net electricity production is compared for adaptable BVR machines and the more established fixed-BVR machines. For the observed scenario, the yearly net electricity production rises by 3.1 % due to the deployment of adaptable BVR machines
Exchange bias and asymmetric hysteresis loops from a microscopic model of core/shell nanoparticles
Creators: name: Iglesias, Oscar
name: Batlle, Xavier
name: Labarta, Amilcar
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present Monte Carlo simulations of hysteresis loops of a model of a magnetic nanoparticle with a ferromagnetic core and an antiferromegnetic shell with varying values of the core/shell interface exchange coupling which aim to clarify the microscopic origin of exchange bias observed experimentally. We have found loops shifts in the field direction as well as displacements along the magnetization axis that increase in magnitude when increasing the interfacial exchange coupling. Ovelap functions computed from the spin configurations along the loops have been computed to explain the origin and magnitude of these features microscopically.
description: 3 pages, 3 figures. To be presented at the 3rd JEMS 2006, San Sebastian (Spain), June 26-30th 2006; Exchange Bias Symposium. More information at this web page: http://hermes.ffn.ub.es/oscar/Articles.html
MPEC 2024-A24 : 2024 AK
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 AK

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
GRB 060418 and 060607A: the medium surrounding the progenitor and the weak reverse shock emission
Creators: name: Jin, Zhi-Ping
name: Fan, Yi-Zhong
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We constrain the circum-burst medium profile with the rise behavior of the very early afterglow light curves of gamma-ray bursts (GRBs). Using this method, we find a constant and low-density medium profile for GRB 060418 and GRB 060607A, which is consistent with the inference from the late afterglow data. In addition, we show that the absence of the IR flashes in these two GRB afterglows is consistent with the standard external reverse shock model, which thus renders models like the highly magnetized GRB outflow being unnecessary to a certain extent.
description: 7 pages including 3 eps figures. Expanded version to appear in MNRAS main Journal. References added. Main conclusions are unchanged
Exergetic Performance Evaluation of Ocean Thermal Energy Conversion System with Crossflow Plate Heat Exchangers
Creators: name: Yasunaga, Takeshi
name: Taisei Nakamura
name: Okuno, Tomoya
name: Ikegami, Yasuyuki
Publisher: name: Technical University of Munich
Year: 2021

description: Ocean thermal energy conversion (OTEC) systems can convert the ocean thermal energy stored as a vertical temperature gradient in the ocean to electricity. Because the temperature difference in the heat engine is low, zeotropic mixtures and staging heat engines are applied to increase the power output. Recently, we proposed a method to evaluate the performance of the OTEC to identify the irreversible loss and energy conversion efficiency based on finite-time thermodynamics (FTT). In particular, this approach can determine the irreversible loss in the heat balance design and heat exchange process, and this concept can be extended to consider the internal irreversibility of heat engines. In this work, the performance of a single Rankine cycle OTEC with a crossflow plate heat exchanger as an evaporator and a condenser was experimentally evaluated to clarify the irreversibility of the heat engine and exergy. The internal irreversibility of the heat engine and effect of the staging of the heat engine were discussed. Moreover, the experimental results for the simple Rankine framework were extended to the numerical simulation of a two-stage Rankine cycle to compare the effect of the staging configuration such as cascade or parallel installations. The maximum net exergy efficiency reached 26%, 30% and 40% in the single Rankine cycle, parallel two-unit Rankine cycle and cascade double-stage Rankine cycle, respectively. The results demonstrate that the FTT model can effectively realize performance evaluation and can be applied to achieve optimal control and design.
Climate, predation, and the controls of island lizard abundance and community structure
Creators: name: Folfas, Edita
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 310302
subject: Community ecology (excl. invasive species ecology)

description: Data and scripts for Folfas, E. Mahler, D.L, Frishkoff, L.O. Climate, predation, and the controls of island lizard abundance and community structure. Ecosphere.eBird data (EBD) used here can be downloaded from: https://ebird.org/data/download?_ga=2.87856792.1070213674.1728326797-1397833006.1728326797&_gl=1*1kulje7*_gcl_au*MjExMTY4ODE1Mi4xNzI4MzI2Nzk3*_ga*MTM5NzgzMzAwNi4xNzI4MzI2Nzk3*_ga_QR4NVXZ8BM*MTcyODMyNjc5Ni4xLjEuMTcyODMyNjg0NC4xMi4wLjA.

Climate files can be downloaded from https://www.worldclim.org/data/worldclim21.html. Variables 1 (temperature), 4 (temperature seasonality), 12 (precipitation), and 15 (precipitation seasonality) are needed at the 30s spatial resolution. I recommend downloading the .zip file that contains all 19 of the bioclimatic variables and then reading in the necessary files from there and deleting the excess ones.
Correlators, Probabilities and Topologies in N=4 SYM
Creators: name: Brown, T.
name: Koch, R. de Mello
name: Ramgoolam, S.
name: Toumbas, N.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We calculate transition probabilities for various processes involving giant gravitons and small gravitons in AdS space, using the dual N=4 SYM theory. The normalization factors for these probabilities involve, in general, correlators for manifolds of non-trivial topology which are obtained by gluing simpler four-manifolds. This follows from the factorization properties which relate CFT correlators for different topologies. These points are illustrated, in the first instance, in the simpler example of a two dimensional Matrix CFT. We give the bulk five dimensional interpretation, involving neighborhoods of Witten graphs, of these gluing properties of the four dimensional boundary CFT. As a corollary we give a simple description, based on Witten graphs, of a multiplicity of bulk topologies corresponding to a fixed boundary topology. We also propose to interpret the correlators as topology-changing transition amplitudes between LLM geometries.
description: LaTeX : 55 pages + Appendices (30 figures) version 2 : minor typos corrected + minor comments + acknowledgements added
Consequences of Minimal Length Discretization on Line Element, Metric Tensor and Geodesic Equation
Creators: name: Tawfik, Abdel Nasser
name: Diab, Abdel Magied
name: Shenawy, Sameh
name: Dahab, Eiman Abou El
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: When minimal length uncertainty emerging from generalized uncertainty principle (GUP) is thoughtfully implemented, it is of great interest to consider its impacts on {\it "gravitational} Einstein field equations (gEFE) and to try to find out whether consequential modifications in metric manifesting properties of quantum geometry due to quantum gravity. GUP takes into account the gravitational impacts on the noncommutation relations of length (distance) and momentum operators or time and energy operators, etc. On the other hand, gEFE relates {\it classical geometry or general relativity gravity} to the energy-momentum tensors, i.e. proposing quantum equations of state. Despite the technical difficulties, we confront GUP to the metric tensor so that the line element and the geodesic equation in flat and curved space are accordingly modified. The latter apparently encompasses acceleration, jerk, and snap (jounce) of a particle in the {\it "quasi-quantized"} gravitational field. Finite higher-orders of acceleration apparently manifest phenomena such as accelerating expansion and transitions between different radii of curvature, etc.
description: 4 pages, 0 figure, invited talk at 9th int. Workshop on Astronomy and Relativistic Astrophysics (IWARA2020 Video Conference). accepted for publication in Astronomical Note (AN)
Stenus vermicularis L. BENICK. Sie 1917
Creators: name: Puthz, Volker
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Stenus
Stenus vermicularis

description: Stenus vermicularis L. BENICK., 1917
(Abb. 37, 97, 137, 247, 269, 319)
Stenus vermicularis L. BENICK, 1917, Ent. Bl. 13: 295; PUTHZ, 1968:1, 6; PUTHZ, 1995: 202.
Stenus quadriguttatus PUTHZ, 1971: 2.
Material: KOLUMBIEN: ♂ - Lektotypus: Las Tibayes, Terra templ. (ZMB); 2♂♂, 1♀: 15 km S Bogota, 8000-9000 feet, under rocks, 3.III.1969, P. & P. Spangler (SNM, cP); 1♂: Norte de Santander: 30 km S Chinacota, 10.V.1974, H. & A. Howden (CNC); 1♂: Cundinamarca: Guasca, 3300m, 10.III.1943, Chapin (USNM); 1♂: Cundinamarca: Road Facativa- Anoilaima, 2600m, 15.VII.1967, P. & B. Wygodzinsky (HT von S. quadriguttatus; AMNH); 1♀: ibidem, Road Sibate to Aguadita, 2600m, 5.VII.1967, idem (PT von S. quadriguttatus, cP). ECUADOR: 1♀: Umgebung Riobamba, IV.1975, H. Franz (Sa 235) (NHMW); 1♀: Napo, Papallacta, 3700m, 25.XI.1983, L. Huggert (ZML); 1♀: Cotopaxi, Parque Nacional Cotopaxi, Quebrada Mishahualcu, 3600m, 0 o 38.31’S, 78 o 29.57’W, streamside shrub litter, 25.X.1999, R. Anderson (KSEM); 1♂: Pichincha, 27 km W Quito, 6 km W San Juan, Old Quito- Santo Domingo Road, 10.200 feet, foliage, 15.-25.X.1988, L. Herman (AMNH); 2♂♂: Pichincha, San José de Minas, Cerro Blanco, 3150m, 0 o 12.373’S, 78 o 21.030 W‘, 7.VIII.2006, G. Osella (cOsella, cP); 1♂, 6♀♀: Pichincha, Old Quito- Santo Domingo Road, W San Juan, 10.500 feet, leaf litter, 12.VI.1982, H. Frania (CNC, cP); 1♂, 2♀♀: ibidem km 27 Old Quito- Santo Domingo road, 3200m, 18.II.1979, H. Howden (CNC, cP); 1♀: Pichincha, 10 km Woag, 3000 m, 17.II.1976, J.M. Campbell (CNC); 2♂♂, 2 ♀♀: Pichincha, Lloa, Rio Blanco, 2470m, 0o12.376’S, 78o40.010’W, 1.VIII.2006, P.M. Giachino (cGiachino, cP); 1♀: Azuay, 20 km NW Cuenca Cajus Rec. Area, 3240m, under rocks/logs in pasture, 1.I.1992, Carlton & Leschen (KSEM); 1♂: 45 km NW Cuenca, 2200m, under rocks near stream, 2.I.1992, idem (KSEM); 1♀: Morona Santiago, 71 km E Cuenca, road to Arenillas, 2500m, cloud forest litter, 5.I.1992, idem (KSEM). VENEZUELA: 3♂♂, 3♀♀: Merida, La Aguada Station, 3452m, 8.IV.1988, Finnamore & Baxfield ZMB, cP); 1♂: Merida, 10 km SW Santo Domingo, 2800m, litter near stream, 8.IV.1994, L. Herman (KSEM); 1♂: 5.3 km W Santo Domingo, 2400m, ibidem, 13.IV.1994, idem (KSEM); 2♀♀: Trujillo, 12,7 km SE Boconó, 2710m, 9 o 12’N, 70 o 12’W, at water seep, 3.III.1995, R.W. Brooks (KSEM, cP).
Bemerkungen: Diese Art ist in den Anden weit verbreitet, die Sexualcharaktere zeigen die Abb. 137, 247, 269, 319.
description: Published as part of Puthz, Volker, 2016, Übersicht über die neotropischen Arten der Gattung Stenus LATREILLE mit seitlich gerandetem Abdomen und ungelappten Tarsen (Coleoptera, Staphylinidae) 350. Beitrag zur Kenntnis der Steninen, pp. 1551-1634 in Linzer biologische Beiträge 48 (2) on page 1603, DOI: 10.5281/zenodo.5355748
Higher representations on the lattice: perturbative studies
Creators: name: Del Debbio, Luigi
name: Frandsen, Mads T.
name: Panagopoulos, Haralambos
name: Sannino, Francesco
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We present analytical results to guide numerical simulations with Wilson fermions in higher representations of the colour group. The ratio of $Λ$ parameters, the additive renormalization of the fermion mass, and the renormalization of fermion bilinears are computed in perturbation theory, including cactus resummation. We recall the chiral Lagrangian for the different patterns of symmetry breaking that can take place with fermions in higher representations, and discuss the possibility of an Aoki phase as the fermion mass is reduced at finite lattice spacing.
description: 22 pages, 4 figures
Elicitation - switch-reference and time
Creators: name: Soria Pérez, Celia
name: Clem, Emily
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2024
Subjects: subject: amc

description: This bundle contains recordings and associated notes from an elicitation session conducted by Emily Clem with Celia Soria Pérez. Topics covered include the expression of time in switch-reference constructions and attitude reports.
The development of the Belgian paediatric clinical trial network
Creators: name: Degraeuwe, E.
name: Persijn, L.
name: Nuytinck, L.
name: Allegaert, K.
name: De Taeye, L.
name: Gasthuys, E.
name: Christiaens, D.
name: Karamaria, S.
name: Raes, A.
name: Turner, M.
name: Walle, J. Vande
Publisher: name: Taylor & Francis
Year: 2023
Subjects: Medicine
Biological Sciences not elsewhere classified
Science Policy

description: Paediatric clinical trials are critical to ensure that medications prescribed to children are safe and effective. However, evidence-based dosing and labelling of such medications remain limited, and most clinical trials in paediatrics fail. Factors for lack of trial completion include performance at site level (limited patient recruitment, limited site staff experience and lack of infrastructure), the sponsor team (limited paediatric specific expertise in design, uncertainties on robustness of biomarkers or outcome variables) as well as regulatory and administrative burdens. As a result of the growing demand for site support, the Belgian Paediatric Clinical Research Network (BPCRN) established in 2009 has been relaunched in 2018 to improve paediatric clinical trials, with the support of innovative-medicines-initiative 2 (IMI2) pan-European network conect4children (c4c) and the transatlantic network I-ACT for Children (US). This paper highlights the formation of the BPCRN and the practical insights it offers for advancing paediatric clinical trials through national networks. A national network can improve trial quality, safety and efficiency, provide clinical research expertise, identify suitable sites, and help with troubleshooting of common trial issues. The BPCRN’s centralized approach has advanced paediatric clinical trials by streamlining communication and standardizing trial conduct. Challenges and opportunities have arisen, including a relaunch in 2018, orphan medicine trials, and network sustainability. Collaboration between network activities, government support, site-level improvements, efficient communication, and interaction with industry are key to achieve lasting transformation in paediatric medicine research.
Stenus rectifrons L. BENICK 1917
Creators: name: Puthz, Volker
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Stenus
Stenus rectifrons

description: Stenus rectifrons L. BENICK, 1917
Stenus rectifrons L. BENICK, 1917: 294.
Diese aus Peru beschriebene Art kommt auch in Brasilien vor: 3♂♂, 2 ♀♀: Pará: 18 km NE Oriximina, 13.-14.XI.1969, J.M. & B.A. Campbell (CNC, cP); 1♂: Amazonas, Manaus, VI.1972, F.M. Oliveira (FMCh).
description: Published as part of Puthz, Volker, 2016, Übersicht über die neotropischen Arten der Gattung Stenus LATREILLE mit seitlich gerandetem Abdomen und ungelappten Tarsen (Coleoptera, Staphylinidae) 350. Beitrag zur Kenntnis der Steninen, pp. 1551-1634 in Linzer biologische Beiträge 48 (2) on page 1604, DOI: 10.5281/zenodo.5355748
Strong-coupling-assisted formation of coherent radiation below the lasing threshold
Creators: name: Doronin, Ilya V.
name: Zyablovsky, Alexander A.
name: Andrianov, Evgeny S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The creation of nanoscale lasers that operate above a coherent threshold is a challenging problem. We propose a way to circumvent this issue using systems in which a strong coupling regime is achieved between the light and the active medium. In the strong coupling regime, energy oscillations take place between the EM field in the cavity and the atoms. By applying appropriate time modulation to the pumping, it is possible to control these energy oscillations in such a way that coherence in the laser system appears below the lasing threshold. We show that in this approach, the radiation linewidth is two orders of magnitude smaller than the linewidth of a conventional laser for the same photon number. In addition, the second order coherence function of the output radiation is reduced from two to one before the system reaches a positive population inversion. Our results pave the way for the creation of nanoscale sources of coherent radiation that can operate below the lasing threshold.
Stenus schuelkeianus PUTHZ 2008
Creators: name: Puthz, Volker
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Stenus
Stenus schuelkeianus

description: Stenus schuelkeianus PUTHZ, 2008
Stenus schuelkeianus PUTHZ, 2008: 195.
Stenus irazumontis PUTHZ, 2013: 94 nov.syn.
Bemerkungen: Die Beschreibung des S. schuelkeianus erfolgte nach einem Weibchen. Später wurde auch das Männchen dieser variablen Art entdeckt, aber zuerst für eine eigene Art gehalten. Dies wird hier berichtigt.
description: Published as part of Puthz, Volker, 2016, Übersicht über die neotropischen Arten der Gattung Stenus LATREILLE mit seitlich gerandetem Abdomen und ungelappten Tarsen (Coleoptera, Staphylinidae) 350. Beitrag zur Kenntnis der Steninen, pp. 1551-1634 in Linzer biologische Beiträge 48 (2) on page 1605, DOI: 10.5281/zenodo.5355748
The potential of supercritical cycles based on CO2 mixtures in concentrated solar power plants: An exergy-based analysis
Creators: name: Crespi, Francesco
name: De Arriba, Pablo Rodríguez
name: Sánchez, David
name: Muñoz, Antonio
name: Sánchez, Tomás
Publisher: name: Technical University of Munich
Year: 2021

description: This paper, developed in the context of the SCARABEUS project funded by the Horizon 2020 programme of the European Commission, focuses on the thermodynamic comparison between pure supercritical Carbon Dioxide and blended transcritical Carbon Dioxide power cycles by means of a thorough exergy analysis. A reference power plant based on a steam Rankine cycle and representative of the current state of the art of Concentrated Solar Power plants is selected as base-case. Afterwards, four cycles are added to the comparison. Two of these cycles employ pure CO2, with either a Recompression or a Partial Cooling layout, whereas two cycles employ CO2-based mixtures with either Hexafluorobenzene (CO2-C6F6) or Titanium Tetrachloride (CO2-TiCl4) with a Precompression and a Recuperated Rankine. The figures of merit used to carry out the second-law analysis are exergy efficiency and exergy destruction in the main components of the cycle. Two different cases are identified, corresponding to two temperatures of the energy (heat) source: 575ºC and 725ºC. The first one is representative of the peak temperatures achieved by the molten salts used in modern Concentrated Solar Power plants. 725ºC will expectedly be achieved by next generation systems and it is hence assessed with the aim to unfold the true potential of the concept proposed. The results show that at 575ºC pure sCO2 power cycles are clearly outperformed by steam Rankine cycles whilst, at 725ºC, they are able to achieve higher thermal and exergy efficiencies, in the order of 49% and 72% respectively. When compared to state-of-the-art Rankine cycles using steam, blended-sCO2 power cycles enable thermal efficiency gains of up to 1.1 and 6 percentage points at 575ºC and 725ºC respectively, with exergy efficiencies of up to 75.2%.
Recursive Monte Carlo filters: Algorithms and theoretical analysis
Creators: name: Künsch, Hans R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62M09 (Primary) 60G35, 60J22, 65C05 (Secondary)

description: Recursive Monte Carlo filters, also called particle filters, are a powerful tool to perform computations in general state space models. We discuss and compare the accept--reject version with the more common sampling importance resampling version of the algorithm. In particular, we show how auxiliary variable methods and stratification can be used in the accept--reject version, and we compare different resampling techniques. In a second part, we show laws of large numbers and a central limit theorem for these Monte Carlo filters by simple induction arguments that need only weak conditions. We also show that, under stronger conditions, the required sample size is independent of the length of the observed series.
description: Published at http://dx.doi.org/10.1214/009053605000000426 in the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)