323,133 research outputs found
Supporting Data for Laser ablated sub-wavelength structure anti-reflection coating on an alumina lens
No full textThe images are VK4 files generated by a Keyence VKX-3000 confocal microscope. The code "Pyramid stacking.py" is a custom code written by Calvin Firth with which the images were analyzed.These are images and the code that were used to analyze the data provided for the paper "Laser ablated subwavelength structure antireflection coating on an alumina lens."Hanany, Shaul; Cray, Scott; Dietterich, Samuel; Dusing, Jan; Firth, Calvin; Koch, Jurgen; Lam, Rex; Matsumura, Tomotake; Sakurai, Haruyuki; Sakurai, Yuki; Suzuki, Aritoki; Takaku, Ryota; Wen, Qi; Wienke, Alexander; Yan, Yan. (2025). Supporting Data for Laser ablated sub-wavelength structure anti-reflection coating on an alumina lens. Retrieved from the Data Repository for the University of Minnesota (DRUM), https://doi.org/10.13020/X07S-DD66
An Infinite Family of Superconformal Quiver Gauge Theories with Sasaki-Einstein Duals
No full textWe describe an infinite family of quiver gauge theories that are AdS/CFT dual to a corresponding class of explicit horizon Sasaki-Einstein manifolds. The quivers may be obtained from a family of orbifold theories by a simple iterative procedure. A key aspect in their construction relies on the global symmetry which is dual to the isometry of the manifolds. For an arbitrary such quiver we compute the exact R-charges of the fields in the IR by applying a-maximization. The values we obtain are generically quadratic irrational numbers and agree perfectly with the central charges and baryon charges computed from the family of metrics using the AdS/CFT correspondence. These results open the way for a systematic study of the quiver gauge theories and their dual geometries
PMC Turbo image and lidar data taken in July 2018, supplement to Geach et al. (2020) "Gravity Wave and Vortex Ring Formation Observed by PMC Turbo"
No full textData consist of image data ("Geach_ds01.nc"), lidar data("Geach_ds02.nc"), and NAVGEM reanalysis output ("Geach_ds03.nc").
Image and lidar data were taken aboard the PMC Turbo instrument described in Fritts et al. (2019) "PMC Turbo: Studying Gravity Wave and Instability Dynamics in the Summer Mesosphere Using Polar Mesospheric Cloud Imaging and Profiling From a Stratospheric Balloon". Images contain metadata: balloon location, altitude, and pointing, and image exposure time.
NAVGEM reanalysis model is described in Eckermann et al. (2018) "High-Altitude (0–100 km) Global Atmospheric Reanalysis System: Description and Application to the 2014 Austral Winter of the Deep Propagating Gravity Wave Experiment (DEEPWAVE)". Data consists of vertical profiles from 50-100 km of meridional winds, zonal winds, temperatures and buoyancy frequency.These datasets are published in accordance with AGU requirements for journal submission.NASA: 80NSSC18K0050Geach, Christopher P; Hanany, S; Fritts, D C; Kaifler, B; Kaifler, N; Kjellstrand, C B; Williams, B P; Eckermann, S D; Miller, A D; Jones, G; Reimuller, J. (2020). PMC Turbo image and lidar data taken in July 2018, supplement to Geach et al. (2020) "Gravity Wave and Vortex Ring Formation Observed by PMC Turbo". Retrieved from the University Digital Conservancy, https://doi.org/10.13020/te3n-hj23
Supplementary data for "The PMC Turbo balloon mission to measure gravity waves and turbulence in Polar Mesospheric Clouds: Camera, telemetry, and software performance"
No full textThere are three separate files containing images from PMC Turbo cameras during its flight in July 2018. Image data were taken aboard the PMC Turbo instrument described in Fritts et al. (2019) "PMC Turbo: Studying Gravity Wave and Instability Dynamics in the Summer Mesosphere Using Polar Mesospheric Cloud Imaging and Profiling From a Stratospheric Balloon," https://doi.org/10.1029/2019JD030298.The Polar Mesospheric Cloud Turbulence (PMC Turbo) instrument consists of a balloon-borne platform which hosts seven cameras and a Rayleigh lidar. During a six-day flight in July 2018, the cameras captured images of Polar Mesospheric Clouds (PMCs) with a sensitivity to spatial scales from ~20 m to 100 km at a ~2-s cadence and a full field of view (FOV) of hundreds of kilometers. We developed software optimized for imaging of PMCs, controlling multiple independent cameras, compressing and storing images, and for choosing telemetry communication channels. We give an overview of the PMC Turbo design focusing on the flight software and telemetry functions. We describe the performance of the system during its first flight in July 2018. The images uploaded here support the paper in demonstrating the performance of the PMC Turbo instrument.NASA 80NSSC18K0050NASA 80NSSC20K0178Kjellstrand, Carl B; Jones, Glenn; Geach, Christopher P; Williams, Bifford P; Fritts, David C; Miller, Amber D; Hanany, Shaul; Limon, Michele; Reimuller, Jason. (2020). Supplementary data for "The PMC Turbo balloon mission to measure gravity waves and turbulence in Polar Mesospheric Clouds: Camera, telemetry, and software performance". Retrieved from the University Digital Conservancy, https://doi.org/10.13020/df2m-a470
Counting BPS Operators in Gauge Theories: Quivers, Syzygies and Plethystics
No full textWe develop a systematic and efficient method of counting single-trace and multi-trace BPS operators with two supercharges, for world-volume gauge theories of D-brane probes for both and finite . The techniques are applicable to generic singularities, orbifold, toric, non-toric, complete intersections, et cetera, even to geometries whose precise field theory duals are not yet known. The so-called ``Plethystic Exponential'' provides a simple bridge between (1) the defining equation of the Calabi-Yau, (2) the generating function of single-trace BPS operators and (3) the generating function of multi-trace operators. Mathematically, fascinating and intricate inter-relations between gauge theory, algebraic geometry, combinatorics and number theory exhibit themselves in the form of plethystics and syzygies
Diffusive author(s), cohesive author: Analysis of S/N (1994)
No full textThis study indicates the ways in which various aspects of the author(s) are brought forth in Dumb type’s performance art, the S/N production. Previous research has suggested a non-hierarchical organization of Dumb type and the absence of a “privileged author” in Dumb type’s collaborative work, S/N. However, the results that I have investigated from member’s interviews on the creative process of S/N along with my analysis of the recorded images of S/N, indicate a different aspect of the author(s). First, S/N was created through, so to speak, the collective ideas of the members of Dumb type. Further, S/N has at least nine quotations from previous performances, installations, and printed writings, besides the work-in-progress technique. Explicating one of the “author functions” as given by Michel Foucault, each text has plural subjects of the author. However, it has been revealed from members’ interviews that Teiji Furuhashi had a decision-making role in selecting the members’ ideas within the performance. Since then, S/N has had plural subjects of creation; however, Furuhashi is one of the subjects of creation along with the “privileged author.” S/N has plural authors (diffusive authors) yet at the same time, it has a “privileged author,” Teiji Furuhashi (cohesive author)
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Mass-deformed brane tilings
No full textWe study renormalization group flows among N = 1 SCFTs realized on the worldvolume of D3-branes probing toric Calabi-Yau singularities, thus admitting a brane tiling description. The flows are triggered by masses for adjoint or vector-like pairs of bifundamentals and are generalizations of the Klebanov-Witten construction of the N = theory for the conifold starting from the N = 2 theory for the C-2/Z(2) orbifold. In order to preserve the toric condition pairs of masses with opposite signs have to be switched on. We offer a geometric interpretation of the flows as complex deformations of the Calabi-Yau singularity preserving the toric condition. For orbifolds, we support this interpretation by an explicit string amplitude computation of the gauge invariant mass terms generated by imaginary self-dual 3-form fluxes in the twisted sector. In agreement with the holographic a-theorem, the volume of the Sasaki-Einstein 5-base of the Calabi-Yau cone always increases along the flow
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