cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Hot-Spot Endurance Test - Modifications for Bifacial Photovoltaic Modules
Creators: name: Philipp, D.
name: Manuel, H.
name: Fokuhl, E.
name: Mülhöfer, G.
Publisher: name: WIP
Year: 2018
Subjects: Photovoltaic Modules and BoS Components
PV Module Design, Manufacture, Performance and Reliability

description: 35th European Photovoltaic Solar Energy Conference and Exhibition; 1029-1033
description: This paper aims at identifying suitable procedures for hot-spot endurance tests on bifacial PV modules. Drawing on the relevant background, i.e., normative requirements and available studies, it considers existing theoretical models and procedures for their application on bifacial modules. The resulting assumptions are subjected to experimental tests on four modules and in three approaches varying in their irradiance of module sides as well as location and degree of cell shading. In a second cycle, the first two approaches were repeated with extreme variations in irradiance level foreseen by the standard IEC 61215-2:2016. As it turns out, worst-case hot-spot temperatures appear in all three approaches, indicating a necessity for comprehensive testing. However, worst-case hot-spot temperatures are highly sensitive to irradiance intensity in general to an extent that may affect their passing or failing a hot-spot test, even if the test is done within the specified range of 900 to1100 W/m². It is therefore advised to reconsider the currently permitted leeway in equipment precision for both bifacial and conventional monofacial modules.
Permutations contained in transitive subgroups
Creators: name: Eberhard, Sean
name: Ford, Kevin
name: Koukoulopoulos, Dimitris
Publisher: name: arXiv
Year: 2016
Subjects: subject: Group Theory (math.GR)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05A05, 20B30 (Primary), 20B15 (Secondary)

description: In the first paper in this series we estimated the probability that a random permutation $π\in\mathcal{S}_n$ has a fixed set of a given size. In this paper, we elaborate on the same method to estimate the probability that $π$ has $m$ disjoint fixed sets of prescribed sizes $k_1,\dots,k_m$, where $k_1+\cdots+k_m=n$. We deduce an estimate for the proportion of permutations contained in a transitive subgroup other than $\mathcal{S}_n$ or $\mathcal{A}_n$. This theorem consists of two parts: an estimate for the proportion of permutations contained in an imprimitive transitive subgroup, and an estimate for the proportion of permutations contained in a primitive subgroup other than $\mathcal{S}_n$ or $\mathcal{A}_n$.
description: 36 pages, 1 figure. Reformatted for Discrete Analysis but otherwise identical to the previous version
On relative rational chain connectedness of threefolds with anti-big canonical divisors in positive characteristics
Creators: name: Wang, Yuan
Publisher: name: arXiv
Year: 2015
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: In this paper we prove two results about the rational chain connectedness for klt threefolds with anti-big canonical divisors in the relative setting.
description: Minor changes in the statements of the main theorems. Some typos are fixed
Interlaboratory Comparison of Methodologies for Measuring the Angle of Incidence Dependence of Solar Cells
Creators: name: Riedel, N.
name: Santamaria Lancia, A.A.
name: Amdemeskel, M.
name: Thorsteinsson, S.
name: Poulsen, P.B.
name: Plag, F.
name: Kröger, I.
name: Slooff, L.H.
name: Jansen, M.J.
name: Carr, A.J.
name: Manshanden, P.
name: Bliss, M.
name: Betts, T.R.
name: Petrina Jauregui, I.
name: Ezquer Mayo, M.
name: Balenzategui, J.L.
name: Roldán, R.
name: Kräling, U.
name: Baarah, G.
name: Iandolo, B.
name: Davidsen, R.S.
name: Thorseth, A.
name: Dam-Hansen, C.
name: Dos Reis Benatto, G.A.
Publisher: name: WIP
Year: 2018
Subjects: Photovoltaic Modules and BoS Components
PV Module Design, Manufacture, Performance and Reliability

description: 35th European Photovoltaic Solar Energy Conference and Exhibition; 1034-1039
description: The aim of this work is to compare angle of incidence (AOI) measurement setups for solar cells between laboratories with such capability. For the first time, we compare relative light transmission measurements among eight laboratories, whose measurement techniques include indoor and outdoor methods. We present the relative transmission measurements on three 156 mm x 156 mm crystalline-Si (c-Si) samples with different surface textures. The measurements are compared using the expanded uncertainties provided by each laboratory. Five of the eight labs showed an agreement better than ±2% to the weighted mean between AOIs from -75° to 70°. At AOIs of ±80° and ±85°, the same five labs showed a worst case deviation to the weighted mean of -3% to 5% and 0% to 18%, respectively. When measurement uncertainty is considered, the results show that measurements at the highest incidence angle of ±85° are problematic, as measurements from four out of the six labs reporting uncertainty were found non-comparable within their stated uncertainties. At 85° AOI a high to low range of up to 75% was observed between all eight laboratories.
Numerical Study of the Simplest String Bit Model
Creators: name: Chen, Gaoli
name: Sun, Songge
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: String bit models provide a possible method to formulate a string as a discrete chain of pointlike string bits. When the bit number $M$ is large, a chain behaves as a continuous string. We study the simplest case that has only one bosonic bit and one fermionic bit. The creation and annihilation operators are adjoint representations of the $U\left(N\right)$ color group. We show that the supersymmetry reduces the parameter number of a Hamiltonian from 7 to 3 and, at $N=\infty$, ensures a continuous energy spectrum, which implies the emergence of one spatial dimension. The Hamiltonian $H_{0}$ is constructed so that in the large $N$ limit it produces a world sheet spectrum with one Grassmann world sheet field. We concentrate on numerical study of the model in finite $N$. For the Hamiltonian $H_{0}$, we find that the would-be ground energy states disappear at $N=\left(M-1\right)/2$ for odd $M\leq11$. Such a simple pattern is spoiled if $H$ has an additional term $ξΔH$ which does not affect the result of $N=\infty$. The disappearance point moves to higher (lower) $N$ when $ξ$ increases (decreases). Particularly, the $\pm\left(H_{0}-ΔH\right)$ cases suggest a possibility that the ground state could survive at large $M$ and $M\gg N$. Our study reveals that the model has stringy behavior: when $N$ is fixed and large enough, the ground energy decreases linearly with respect to $M$, and the excitation energy is roughly of order $M^{-1}$. We also verify that a stable system of Hamiltonian $\pm H_{0}+ξΔH$ requires $ξ\geq\mp1$.
description: 54 pages, 15 figures
Internal Sun Tracking CPV4ALL Module: Improvement and Novel Characterization of the 4-Lobed Parabolic Mirror with Tolerance Manufacturing
Creators: name: Bernardis, S.
name: Ickes, G.
name: Hagedorn, H.
name: Reus, H.
name: Schmauder, T.
name: Schottner, M.
name: Rooms, H.
name: Bolt, P.-J.
name: Bos-Coenraad, J.
name: Van Es, S.G.D.
name: Haverkamp, E.J.
name: Schermer, J.J.
name: Gaume, J.
name: Voarino, P.
Publisher: name: WIP
Year: 2018
Subjects: Concentrator and Space Photovoltaics
III-V-Based Devices for Terrestrial and Space Applications

description: 35th European Photovoltaic Solar Energy Conference and Exhibition; 981-986
description: The SunCycle module is a hybrid concentration system, transforming captured solar radiation in electricity and heat. Novelty of this system is that each module composing the system is designed with two rotating optical stages (prism and mirror) to avoid the need of external sun-tracking. In this work, we evaluate the impact on the final module performances of two different coatings of the 4-lobed parabolic mirror, an Aluminum (Al) and a Silver (Ag) stack, and their manufacturing tolerances. To do so, we propose two mirror measurement techniques, named “Pilot-Line” and “R&D” mirror tests, backed-up by solar simulator measurements and simulations. With the pilot-line tests, the measurements from the Ag-coated mirrors showed an 8 % increase in average reflectivity compared to the Al-coated mirrors. The variation within the Al batch was 1,6 % and 1 % for the Ag batch. The variation between repeated measurements of the same mirror was lower than 0,6 %. These values, combined with the fast measurement time, make this method suitable for pilot-line implementation. In both characterization methods, the surface shape of the tested mirrors showed the same features due to molding. All measurement techniques agreed on the Ag-coated mirror reflectivity improvement, compared to the Al-based one, leading to a similar increase in module power production.
Arachnothera longirostra subsp. rothschildi van Oort
Creators: name: Pachycephalidae
name: Aegithalidae
name: Remizidae
name: Paridae
name: Sittidae
name: Neosittidae
name: Certhiidae
name: Rhabdornithidae
name: Climacteridae
name: Dicaeidae
name: Pardalotidae
name: Nectariniidae, And
name: Lecroy, Mary
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Passeriformes
Nectariniidae
Arachnothera

description: Arachnothera longirostra rothschildi van Oort Arachnothera longirostra rothschildi van Oort, 1910a: 195 (Natoena Islands (Boengoeran)). Now Arachnothera longirostra rothschildi van Oort, 1910. See Cheke and Mann, 2008a: 317. LECTOTYPE: AMNH 685347, adult female, collected on Natuna Besar or Bunguran (5 Boengoeran) Island, 04.00N, 108.15E (USBGN, 1982), Natuna (5 Natoena) Islands, Indonesia, in September 1893, by Alfred Everett. From the Rothschild Collection. COMMENTS: van Oort did not designate a type in the original description but said that he examined the 10 specimens collected on Bunguran Island and loaned to him by Hartert. Hartert (1920a: 428) listed as type the female specimen marked by van Oort with his new name, thereby designating it the lectotype. AMNH 685347 is the only female specimen so marked and it bears a Rothschild type label. The nine paralectotypes are: collected by Charles Hose in July 1894, AMNH 685338, male, Sibintane, Natuna Besar (5 Great Natuna, as on label); collected by Everett on Bunguran Island in September and October 1893, AMNH 685339–685346, four males and four females.
description: Published as part of Pachycephalidae, Aegithalidae, Remizidae, Paridae, Sittidae, Neosittidae, Certhiidae, Rhabdornithidae, Climacteridae, Dicaeidae, Pardalotidae, Nectariniidae, And & Lecroy, Mary, 2010, Type Specimens Of Birds In The American Museum Of Natural History Part 8. Passeriformes:, pp. 1-178 in Bulletin of the American Museum of Natural History 2010 (333) on pages 151-152
description: {"references": ["van Oort, E. D. 1910 a. On Arachnothera longirostra (Latham). Notes from the Leyden Museum 32: 194 - 196.", "Cheke, R. A., and C. F. Mann. 2008 a. Family Nectariniidae (sunbirds). In J. del Hoyo, A. Elliott, and D. Christie (editors), Handbook of birds of the world, volume 13: 196 - 320. Barcelona: Lynx Edicions, 880 pp., 60 pls., 536 photographs.", "Hartert, E. 1920 a. Types of birds in the Tring Museum. B. Types in the general collection (contd.). Novitates Zoologicae 27: 425 - 505."]}
Convergence of solutions of Hamilton-Jacobi equations depending nonlinearly on the unknown function
Creators: name: Chen, Qinbo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Analysis of PDEs (math.AP)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 35B40, 49L25, 37J50

description: Motivated by the vanishing contact problem, we study in the present paper the convergence of solutions of Hamilton-Jacobi equations depending nonlinearly on the unknown function. Let $H(x,p,u)$ be a continuous Hamiltonian which is strictly increasing in $u$, and is convex and coercive in $p$. For each parameter $λ>0$, we denote by $u^λ$ the unique viscosity solution of the H-J equation \[H( x,Du(x),λu(x) )=c.\] Under quite general assumptions, we prove that $u^λ$ converges uniformly, as $λ$ tends to zero, to a specific solution of the critical H-J equation $ H(x,Du(x),0)=c.$ We also characterize the limit solution in terms of Peierls barrier and Mather measures.
毛泽东的文化遗嘱和民权运动的文化标准 (Mao Zedong's Cultural Testament and The Cultural Standard of Populist Movement)
Creators: name: Zexin(曹泽新), CAO
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 440811
subject: Political theory and political philosophy
classificationCode: 441005
subject: Social theory

description: 《毛泽东的文化遗嘱和民权运动的文化标准》，本文又名：《毛左大佬最反毛、最反动——张宏良等人文化立场的基本分析》本文主要根据张宏良等毛左大佬的言行及反映出来的文化立场，分析了毛左大佬反毛反动的基本文化性质，指出他们犬儒修正主义的本质。同时，文中指出，民众最难缠的敌人，从来不是外敌，而是包裹在民族主义招牌下的专制铁幕。民权运动要甄别出专制铁幕，就需要区分铁幕民族主义和民权民族主义。而区分这两个民族主义的文化标准，就是毛泽东晚年留下来的文化遗嘱。在“云中落绣鞋”点评事件中，毛泽东留下的文化遗嘱，嘱咐我们要从铁幕精英手中夺回我们的劳动果实和社会所有权。这个遗嘱也成为了民权运动的文化标准，区分出谁是我们的朋友，谁又是我们的文化敌人。谁支持我们这些井下的百九九爬到井上，并为之疾呼，谁就是我们的文化朋友；谁对我们陷于井下的现实视而不见，忽悠我们继续待在井下，谁就是我们的文化敌人。这个文化标准，还揭示了中国实际上有一个上中国和一个下中国两个中国的基本现实。这个文化标准，揭示了三七开的毛泽东，和他举起的所谓集体智慧结晶的毛泽东思想，就是专制铁幕的最高黑旗。中国社会的基本理论斗争，实际就是三七开的毛泽东和文革毛泽东之间的思想斗争。通过这个文化标准，民权运动还迅速区分文化上的敌我关系，并在文化层面完成下中国民众的心理动员，为经济民权运动创造成熟的社会条件。
Power dissipation in fractal AC circuits
Creators: name: Chen, Joe P.
name: Rogers, Luke G.
name: Anderson, Loren
name: Andrews, Ulysses
name: Brzoska, Antoni
name: Coffey, Aubrey
name: Davis, Hannah
name: Fisher, Lee
name: Hansalik, Madeline
name: Loew, Stephew
name: Teplyaev, Alexander
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 78A02, 28A80, 94C05

description: We extend Feynman's analysis of an infinite ladder circuit to fractal circuits, providing examples in which fractal circuits constructed with purely imaginary impedances can have characteristic impedances with positive real part. Using (weak) self-similarity of our fractal structures, we provide algorithms for studying the equilibrium distribution of energy on these circuits. This extends the analysis of self-similar resistance networks introduced by Fukushima, Kigami, Kusuoka, and more recently studied by Strichartz et al.
description: v2: 16 pages, 8 figures. See also the recent preprint arXiv:1701.08039
Progress towards High Efficiency Thin-Film III-V Quantum Dot Solar Cells for Space
Creators: name: Aho, T.
name: Tukiainen, A.
name: Elsehrawy, F.
name: Khalili, A.
name: Lyytikäinen, J.
name: Halonen, E.
name: Niemi, T.
name: Guina, M.
name: Cappelluti, F.
Publisher: name: WIP
Year: 2018
Subjects: Concentrator and Space Photovoltaics
III-V-Based Devices for Terrestrial and Space Applications

description: 35th European Photovoltaic Solar Energy Conference and Exhibition; 965-968
description: This work summarizes our results in the development of high efficiency III-V quantum dot (QD) solar cells, aimed at tackling with two of the most relevant issues posed by QD solar cells (QDSCs), namely the degradation of open circuit voltage and the weak photon harvesting by QDs. In particular, we report our latest achievements in: i) The molecular beam epitaxy growth of high-quality QDSCs, demonstrating Voc as high as 0.94 V and low penalty (~ 40 mV) with respect to the single-junction reference cell. ii) The development by nanoimprint lithography of metal/polymer back reflectors with high diffraction efficiency, enabling four times increase of the QD photogenerated current. Experimental results are discussed with the support of numerical simulations.
Holographic incoherent transport in Einstein-Maxwell-dilaton Gravity
Creators: name: Zhou, Zhenhua
name: Ling, Yi
name: Wu, Jian-Pin
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Recent progress in the holographic approach makes it more transparent that each conductivity can be decomposed into the coherent contribution due to momentum relaxation and the incoherent contribution due to intrinsic current relaxation. In this paper we investigate this decomposition in the framework of Einstein-Maxwell-dilaton theory. We derive the perturbation equations, which are decoupled for a large class of background solutions, and then obtain the analytic results of conductivity with the slow momentum relaxation in low frequency approximation, which is consistent with the known results from memory matrix techniques.
Observational Constraints on Decoupled Hidden Sectors
Creators: name: Heikinheimo, Matti
name: Tenkanen, Tommi
name: Tuominen, Kimmo
name: Vaskonen, Ville
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider an extension of the Standard Model with a singlet sector consisting of a real (pseudo)scalar and a Dirac fermion coupled with the Standard Model only via the scalar portal. We assume that the portal coupling is weak enough for the singlet sector not to thermalize with the Standard Model allowing the production of singlet particles via the freeze-in mechanism. If the singlet sector interacts with itself sufficiently strongly, it may thermalize within itself, resulting in dark matter abundance determined by the freeze-out mechanism operating within the singlet sector. We investigate this scenario in detail. In particular, we show that requiring the absence of inflationary isocurvature fluctuations provides lower bounds on the magnitude of the dark sector self-interactions and in parts of the parameter space favors sufficiently large self-couplings, supported also by the features observed in the small-scale structure formation.
description: 10 pages, 6 figures. v2; References added. v3; Corrected typographical errors on equations (10) and (15), results unchanged
COVID-19 Impact on Global Maritime Mobility
Creators: name: Millefiori, Leonardo M.
name: Braca, Paolo
name: Zissis, Dimitris
name: Spiliopoulos, Giannis
name: Marano, Stefano
name: Willett, Peter K.
name: Carniel, Sandro
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Economics (econ.GN)
subject: FOS: Economics and business

description: To prevent the outbreak of the Coronavirus disease (COVID-19), many countries around the world went into lockdown and imposed unprecedented containment measures. These restrictions progressively produced changes to social behavior and global mobility patterns, evidently disrupting social and economic activities. Here, using maritime traffic data collected via a global network of AIS receivers, we analyze the effects that the COVID-19 pandemic and containment measures had on the shipping industry, which accounts alone for more than 80% of the world trade. We rely on multiple data-driven maritime mobility indexes to quantitatively assess ship mobility in a given unit of time. The mobility analysis here presented has a worldwide extent and is based on the computation of: CNM of all ships reporting their position and navigational status via AIS, number of active and idle ships, and fleet average speed. To highlight significant changes in shipping routes and operational patterns, we also compute and compare global and local density maps. We compare 2020 mobility levels to those of previous years assuming that an unchanged growth rate would have been achieved, if not for COVID-19. Following the outbreak, we find an unprecedented drop in maritime mobility, across all categories of commercial shipping. With few exceptions, a generally reduced activity is observable from March to June, when the most severe restrictions were in force. We quantify a variation of mobility between -5.62% and -13.77% for container ships, between +2.28% and -3.32% for dry bulk, between -0.22% and -9.27% for wet bulk, and between -19.57% and -42.77% for passenger traffic. This study is unprecedented for the uniqueness and completeness of the employed dataset, which comprises a trillion AIS messages broadcast worldwide by 50000 ships, a figure that closely parallels the documented size of the world merchant fleet.
Open and Closed Loop Control of Solar Tracker Applied to Small Size HCPV System
Creators: name: Peñaranda Chenche, L.E.
name: Barros De Almeida, M.
name: Mendes Finzi Neto, R.
name: Hernandez Mendoza, O.S.
name: Bandarra Filho, E.P.
Publisher: name: WIP
Year: 2018
Subjects: Concentrator and Space Photovoltaics
III-V-Based Devices for Terrestrial and Space Applications

description: 35th European Photovoltaic Solar Energy Conference and Exhibition; 987-990
description: In last years, the solar energy research field has experienced a rapid increase in a wide range of applications. In this sense, High Concentration Photovoltaic (HCPV) systems appears as one of the most promising technologies. However, this kind of systems are highly sensitive to errors in solar tracking control or mechanical clearances in the structural movement of the tracker. Thus, an accurate solar tracking system is necessary aiming to maintain the amount of produced energy in favorable conditions. This paper presents the implementation and evaluation of two control strategies for a dual axes sun tracking system in a small size HCPV system connected to a dummy load.
毛泽东的文化遗嘱和民权运动的文化标准 (Mao Zedong's Cultural Testament and Cultural Standards of Populist Movement)
Creators: name: Zexin(曹泽新), CAO
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 440811
subject: Political theory and political philosophy
classificationCode: 441005
subject: Social theory

description: 《毛泽东的文化遗嘱和民权运动的文化标准》，本文又名：《毛左大佬最反毛、最反动——张宏良等人文化立场的基本分析》本文主要根据张宏良等毛左大佬的言行及反映出来的文化立场，分析了毛左大佬反毛反动的基本文化性质，指出他们犬儒修正主义的本质。同时，文中指出，民众最难缠的敌人，从来不是外敌，而是包裹在民族主义招牌下的专制铁幕。民权运动要甄别出专制铁幕，就需要区分铁幕民族主义和民权民族主义。而区分这两个民族主义的文化标准，就是毛泽东晚年留下来的文化遗嘱。在“云中落绣鞋”点评事件中，毛泽东留下的文化遗嘱，嘱咐我们要从铁幕精英手中夺回我们的劳动果实和社会所有权。这个遗嘱也成为了民权运动的文化标准，区分出谁是我们的朋友，谁又是我们的文化敌人。谁支持我们这些井下的百九九爬到井上，并为之疾呼，谁就是我们的文化朋友；谁对我们陷于井下的现实视而不见，忽悠我们继续待在井下，谁就是我们的文化敌人。这个文化标准，还揭示了中国实际上有一个上中国和一个下中国两个中国的基本现实。这个文化标准，揭示了三七开的毛泽东，和他举起的所谓集体智慧结晶的毛泽东思想，就是专制铁幕的最高黑旗。中国社会的基本理论斗争，实际就是三七开的毛泽东和文革毛泽东之间的思想斗争。通过这个文化标准，民权运动还迅速区分文化上的敌我关系，并在文化层面完成下中国民众的心理动员，为经济民权运动创造成熟的社会条件。
Multimodal Remote Sensing Image Registration with Accuracy Estimation at Local and Global Scales
Creators: name: Uss, M. L.
name: Vozel, B.
name: Lukin, V. V.
name: Chehdi, K.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: This paper focuses on potential accuracy of remote sensing images registration. We investigate how this accuracy can be estimated without ground truth available and used to improve registration quality of mono- and multi-modal pair of images. At the local scale of image fragments, the Cramer-Rao lower bound (CRLB) on registration error is estimated for each local correspondence between coarsely registered pair of images. This CRLB is defined by local image texture and noise properties. Opposite to the standard approach, where registration accuracy is only evaluated at the output of the registration process, such valuable information is used by us as an additional input knowledge. It greatly helps detecting and discarding outliers and refining the estimation of geometrical transformation model parameters. Based on these ideas, a new area-based registration method called RAE (Registration with Accuracy Estimation) is proposed. In addition to its ability to automatically register very complex multimodal image pairs with high accuracy, the RAE method provides registration accuracy at the global scale as covariance matrix of estimation error of geometrical transformation model parameters or as point-wise registration Standard Deviation. This accuracy does not depend on any ground truth availability and characterizes each pair of registered images individually. Thus, the RAE method can identify image areas for which a predefined registration accuracy is guaranteed. The RAE method is proved successful with reaching subpixel accuracy while registering eight complex mono/multimodal and multitemporal image pairs including optical to optical, optical to radar, optical to Digital Elevation Model (DEM) images and DEM to radar cases. Other methods employed in comparisons fail to provide in a stable manner accurate results on the same test cases.
description: 48 pages, 8 figures, 5 tables, 51 references Revised arguments in sections 2 and 3. Additional test cases added in Section 4; comparison with the state-of-the-art improved. References added. Conclusions unchanged. Proofread
The Potential and Design Principle for Next-Generation Spectrum-Splitting Photovoltaics: Targeting 50% Efficiency through Built-In Filters and Generalization of Concept
Creators: name: Lan, D.
name: Green, M.A.
Publisher: name: WIP
Year: 2018
Subjects: Concentrator and Space Photovoltaics
III-V-Based Devices for Terrestrial and Space Applications

description: 35th European Photovoltaic Solar Energy Conference and Exhibition; 951-955
description: Increasing the sunlight to electricity conversion efficiency is a key driver for on-going photovoltaic cost reduction. One of the most successful approaches for improving the efficiency is to split sunlight into suitable spectral bands for a set of solar cells with appropriate energy band gaps. Using this concept, in 2014, our group demonstrated the first photovoltaic conversion efficiency above 40%, where an external filter directed a portion of the sunlight normally wasted by commercial InGaP/InGaAs/Ge triple-junction cells to a silicon cell. Here, we analyze the primary power losses in state-of-the-art spectrum-splitting photovoltaic modules and evaluate the potential for further efficiency increase. Two further developments, applying built-in filters and generalizing the present concept, are proposed for next-generation spectrum-splitting photovoltaics, which can make 50% efficiency a realistic target. The design principal is briefed as is the comparison with monolithic multijunction cells.
Control of quantum noise: on the role of dilations
Creators: name: Burgarth, Daniel
name: Facchi, Paolo
name: Hillier, Robin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: 81Q93 (primary) 46L60, 47A20, 81P16, 81P45 (secondary)

description: We show that every finite-dimensional quantum system with Markovian (i.e., GKLS-generated) time evolution has an autonomous unitary dilation which can be dynamically decoupled. Since there is also always an autonomous unitary dilation which cannot be dynamically decoupled, this highlights the role of dilations in the control of quantum noise. We construct our dilation via a time-dependent version of Stinespring in combination with Howland's clock Hamiltonian and certain point-localised states, which may be regarded as a C*-algebraic analogue of improper bra-ket position eigenstates and which are hence of independent mathematical and physical interest.
description: 18p, to appear in Ann. H. Poincar\'e
Klinische, biochemische und molekulargenetische Untersuchungen an Kindern mit Mitochondriopathien
Creators: name: Schülke-Gerstenfeld, Markus
Publisher: name: Humboldt-Universität zu Berlin, Medizinische Fakultät - Universitätsklinikum Charité
Year: 2002
Subjects: subject: Mitochondrium
subject: Pränataldiagnostik
subject: Komplex I
subject: Komplex III
subject: prenatal diagnosis
subject: mitochondrium
subject: complex I
subject: complex III
subject: 610 Medizin
subject: 33 Medizin
subject: YQ 1600

description: Mitochondrien haben eine entscheidende Rolle im Zellmetabolismus, da sie den Hauptort der ATP-Produktion darstellen. Störungen des mitochondrialen Metabolismus sind mit einem weiten Spektrum von Erkrankungen assoziiert. Das Gehirn und die Muskulatur sind aufgrund ihres hohen Energiebedarfs dabei oft betroffen (Epilepsie, Ataxie, Myopathie). Diese Arbeit beschreibt die Klonierung von nukleären Genen des Komplexes I der mitochondrialen Atmungskette. Besonderes Augenmerk wird dabei auf die 51 kDa Untereinheit (NDUFV1) gerichtet, da sie mit ihrer Bindungsstelle für NADH2 die Eintrittspforte in den Komplex I darstellt. In dieser Untereinheit werden die ersten Mutationen beschrieben, die bei Kindern zu schwerer Entwicklungsretardierung, Leukenzephalopathie und Muskelhypotonie führen. Im weiteren werden Patienten mit isoliertem Komplex III Mangel molekulargenetisch untersucht und klassifiziert. Bei einem Patienten war ein isolierter Komplex III-Mangel und eine Mutation im mitochondrialen Cytochrom b-Gen mit einer septo-optischen Dysplasie vergesellschaftet. Am Ende beschreibt die Arbeit die Probleme der pränatalen Diagnostik mitochondrialer Erkrankungen und die Besonderheiten der genetischen Beratung betroffener Familien.
description: Mitochondria have a crucial role in the energy metabolism of the cell, since they constitute the main place for ATP-production. Defects in the mitochondrial metabolism are associated with a wide spectrum of diseases. Due to their high energy demand brain and muscles are regularly affected (epilepsy, ataxia, myopathy). This work describes the cloning of nuclear encoded genes of complex I of the mitochondrial respiratory chain. The main interest is directed towards the 51 kDa subunit (NDUFV1) since, due to its NADH2-binding domain, it constitutes the entry port into complex I. Therein the first mutations are described, which lead to severe developmental delay, leukencephalopathy and muscular hypotonia in infants. Additionally patients with isolated complex III-deficiency are examined molecularly and are classified according to their clinical symptoms. In one patient isolated complex III deficiency and a mutation in the mitochondrial cytochrome b-gene are associated with septo-optic dysplasia. At the end problems with prenatal diagnosis of mitochondrial diseases and the peculiarities of genetic counselling of affected families are discussed.
Impedance Spectroscopy of CdTe PV Modules - Comparative Study
Creators: name: Finsterle, T.
name: Cerná, L.
name: Hrzina, P.
name: Benda, V.
Publisher: name: WIP
Year: 2018
Subjects: Non Silicon-Based Thin Film Photovoltaics
CI(G)S, CdTe and Related Thin Film Solar Cells and Modules

description: 35th European Photovoltaic Solar Energy Conference and Exhibition; 897-898
description: One of interesting technology of photovoltaic modules which can be used within an industrial
scale is CdTe. These modules are indeed problematic due to Cd content, but still represent interesting
alternative to standard crystalline photovoltaic modules, mainly thanks to their significantly higher energy
yield. Often discussed problems connected with thin-film modules are their stability, variability of
production generations and also the degradation. One of possible method which can reveal early state of
degradation connected with shunts is described in this article.
Arachnothera juliae Sharpe 1887
Creators: name: Pachycephalidae
name: Aegithalidae
name: Remizidae
name: Paridae
name: Sittidae
name: Neosittidae
name: Certhiidae
name: Rhabdornithidae
name: Climacteridae
name: Dicaeidae
name: Pardalotidae
name: Nectariniidae, And
name: Lecroy, Mary
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Passeriformes
Nectariniidae
Arachnothera

description: Arachnothera juliae Sharpe Arachnothera juliae Sharpe, 1887: 451 (Kina Balu, in northern Borneo). Now Arachnothera juliae Sharpe, 1887. See Smythies, 2000: 592, and Cheke and Mann, 2008a: 320. HOLOTYPE: AMNH 685462, adult male, collected on Mt. Kinabalu, 3000 ft, 06.03N, 116.32E (Times Atlas), Sabah, Malaysia, on 19 February 1887, by John Whitehead (no. 984). From the Rothschild Collection. COMMENTS: Sharpe had only Whitehead’s 1887 collection from Kinabalu when he described this species, and Whitehead (in Sharpe, 1889: 424) only obtained one specimen on that expedition. Whitehead’s label is marked ‘‘ Type RBS[harpe].’’ The specimen bears a Rothschild type label and was listed as the type by Hartert (1920a: 428); it is illustrated in Sharpe (1887: pl. 14, opp. p. 451).
description: Published as part of Pachycephalidae, Aegithalidae, Remizidae, Paridae, Sittidae, Neosittidae, Certhiidae, Rhabdornithidae, Climacteridae, Dicaeidae, Pardalotidae, Nectariniidae, And & Lecroy, Mary, 2010, Type Specimens Of Birds In The American Museum Of Natural History Part 8. Passeriformes:, pp. 1-178 in Bulletin of the American Museum of Natural History 2010 (333) on page 152
description: {"references": ["Sharpe, R. B. 1887. Notes on a collection of birds made by Mr. John Whitehead on the mountain of Kina Balu, in northern Borneo, with descriptions of new species. Ibis (5) 5: 435 - 454, pls. XIII and XIV.", "Smythies, B. E. (rev. by G. W. H. Davison). 2000 (1999). The birds of Borneo, 4 th ed. Kota Kinabalu: Natural History Publications (Borneo), 853 pp.", "Cheke, R. A., and C. F. Mann. 2008 a. Family Nectariniidae (sunbirds). In J. del Hoyo, A. Elliott, and D. Christie (editors), Handbook of birds of the world, volume 13: 196 - 320. Barcelona: Lynx Edicions, 880 pp., 60 pls., 536 photographs.", "Sharpe, R. B. 1889. On the ornithology of northern Borneo, with notes by John Whitehead. Parts 1 - 4. Ibis (6) 1: 63 - 85, 185 - 205, 265 - 283, 409 - 443.", "Hartert, E. 1920 a. Types of birds in the Tring Museum. B. Types in the general collection (contd.). Novitates Zoologicae 27: 425 - 505."]}
Rigged Configuration Descriptions of the Crystals B(infinity) and B(lambda) for Special Linear Lie Algebras
Creators: name: Hong, Jin
name: Lee, Hyeonmi
Publisher: name: arXiv
Year: 2016
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: The rigged configuration realization $RC(\infty)$ of the crystal $B(\infty)$ was originally presented as a certain connected component within a larger crystal. In this work, we make the realization more concrete by identifying the elements of $RC(\infty)$ explicitly for the $A_n$-type case. Two separate descriptions of $RC(\infty)$ are obtained. These lead naturally to isomorphisms $RC(\infty)\cong T(\infty)$ and $RC(\infty)\cong \bar{T}(\infty)$, i.e., those with the marginally large tableau and marginally large reverse tableau realizations of $B(\infty)$, that may be computed explicitly. We also present two descriptions of the irreducible highest weight crystal $B(λ)$ in terms of rigged configurations. These are obtained by combining our two descriptions of $RC(\infty)$, the two mentioned isomorphisms, and two existing realizations of $B(λ)$ that were based on $T(\infty)$ and $\bar{T}(\infty)$.
Asymptotic Properties of Random Contingency Tables with Uniform Margin
Creators: name: Wu, Da
Publisher: name: arXiv
Year: 2020
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60F05, 60C05

description: Let $C\geq 2$ be a positive integer. Consider the set of $n\times n$ non-negative integer matrices whose row sums and column sums are all equal to $Cn$ and let $X=(X_{ij})_{1\leq i,j\leq n}$ be uniformly distributed on this set. This $X$ is called the random contingency table with uniform margin. In this paper, we study various asymptotic properties of $X=(X_{ij})_{1\leq i,j\leq n}$ as $n\to\infty$.
description: Final version
Homological selections and fixed-point theorems
Creators: name: Valov, Vesko
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Topology (math.GN)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 54H25, 55M20 (Primary), 55M10, 55M15 (Secondary)

description: A homological selection theorem for C-spaces, as well as, a finite-dimensional homological selection theorem is established. We apply the finite-dimensional homological selection theorem to obtain fixed-point theorems for usco homologically UV^n set-valued maps.
description: Journal of Fixed Point Theory and Applications
Lead Sulfide Nanocrystal Co-Sensitized Dye-Sensitized Solar Cell: Scalable Deposition Process and Significant Improvement in Power Conversion Efficacy
Creators: name: Mehmood, U.
name: Al-Ahmed, A.
name: Afzaal, M.
name: Hakeem, A.S.
name: Haladu, S.A.
name: Al-Sulaiman, F.A.
Publisher: name: WIP
Year: 2018
Subjects: Non Silicon-Based Thin Film Photovoltaics
Perovskite, Organic and Dye-Sensitised Devices

description: 35th European Photovoltaic Solar Energy Conference and Exhibition; 917-919
description: Commercial titanium dioxide (TiO2) paste was tape casted on a pre-cleaned FTO glass substrate and baked at 450 °C for 30 mins. Different concentrations of lead xanthate precursor, Pb(S2COEt)2 were sprayed on the TiO2 layer and backed again in air at 120 °C for 2 hr to generate lead sulfide (PbS) nanocrystals. As-deposited PbS nanocrystals deposited on TiO2 photoanodes were dipped in a dye solution (N719 in methanol) for 24 hr. After sensitization, all the samples were washed with ethanol to remove any unanchored dye molecules. Dye-sensitized solar cells (DSSCs) were completed by depositing a platinum back electrode. 0.22 mM Pb(S2COEt)2 sprayed cell showed improved power conversion efficiency of 7.9%, which is an improvement of 29% compared to the cell without any co-sensitizer. It is expected that most of the absorbed light was involved in the photocurrent generation and was confirmed by an incident photon-to-current conversion efficiency analysis. This is also in-line with the ultraviolet–visible absorption spectra of the photoanode. However, an increase in precursor concentration negatively affected the power conversion efficiency, primarily due to the blocking of incident light reaching the prime photosensitizer.
Stability of cycling behaviour near a heteroclinic network model of Rock-Paper-Scissors-Lizard-Spock
Creators: name: Postlethwaite, Claire M
name: Rucklidge, Alastair M
Publisher: name: arXiv
Year: 2020
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 34C28, 34C37, 37G40, 91A22

description: The well-known game of Rock--Paper--Scissors can be used as a simple model of competition between three species. When modelled in continuous time using differential equations, the resulting system contains a heteroclinic cycle between the three equilibrium solutions representing the existence of only a single species. The game can be extended in a symmetric fashion by the addition of two further strategies (`Lizard' and `Spock'): now each strategy is dominant over two of the remaining four strategies, and is dominated by the remaining two. The differential equation model contains a set of coupled heteroclinic cycles forming a heteroclinic network. In this paper we carefully consider the dynamics near this heteroclinic network. We are able to identify regions of parameter space in which arbitrarily long periodic sequences of visits are made to the neighbourhoods of the equilibria, which form a complicated pattern in parameter space.
description: Submitted to Nonlinearity
Quantum billiards with branes on product of Einstein spaces
Creators: name: Ivashchuk, V. D.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider a gravitational model in dimension D with several forms, l scalar fields and a Lambda-term. We study cosmological-type block-diagonal metrics defined on a product of an 1-dimensional interval and n oriented Einstein spaces. As an electromagnetic composite brane ansatz is adopted and certain restrictions on the branes are imposed the conformally covariant Wheeler-DeWitt (WDW) equation for the model is studied. Under certain restrictions, asymptotic solutions to the WDW equation are found in the limit of the formation of the billiard walls. These solutions reduce the problem to the so-called quantum billiard in (n + l - 1)-dimensional hyperbolic space. Several examples of quantum billiards in the model with electric and magnetic branes, e.g. corresponding to hyperbolic Kac-Moody algebras, are considered. In the case n=2 we find a set of basis asymptotic solutions to the WDW equation and derive asymptotic solutions for the metric in the classical case.
description: 31 pages, Latex, no figures, based on a talk at Int. Session-Conf. of the Sect. of Nucl. Phys. of PSD RAN "Physics of Fundamental Interactions", April 12-15, 2016, JINR, Dubna; few typos are eliminated, some references are updated and reordered
Watermarking Graph Neural Networks by Random Graphs
Creators: name: Zhao, Xiangyu
name: Wu, Hanzhou
name: Zhang, Xinpeng
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cryptography and Security (cs.CR)
subject: Machine Learning (cs.LG)
subject: Multimedia (cs.MM)
subject: FOS: Computer and information sciences

description: Many learning tasks require us to deal with graph data which contains rich relational information among elements, leading increasing graph neural network (GNN) models to be deployed in industrial products for improving the quality of service. However, they also raise challenges to model authentication. It is necessary to protect the ownership of the GNN models, which motivates us to present a watermarking method to GNN models in this paper. In the proposed method, an Erdos-Renyi (ER) random graph with random node feature vectors and labels is randomly generated as a trigger to train the GNN to be protected together with the normal samples. During model training, the secret watermark is embedded into the label predictions of the ER graph nodes. During model verification, by activating a marked GNN with the trigger ER graph, the watermark can be reconstructed from the output to verify the ownership. Since the ER graph was randomly generated, by feeding it to a non-marked GNN, the label predictions of the graph nodes are random, resulting in a low false alarm rate (of the proposed work). Experimental results have also shown that, the performance of a marked GNN on its original task will not be impaired. Moreover, it is robust against model compression and fine-tuning, which has shown the superiority and applicability.
description: https://hzwu.github.io/
Comparison of exact and numerical results in theXY model
Creators: name: Korzec, Tomasz
Publisher: name: Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I
Year: 2003
Subjects: subject: XY-Modell
subject: Monte Carlo
subject: Destri-de Vega Gleichung
subject: Gitterartefakte
subject: XY model
subject: Destri-de Vega equation
subject: lattice artifacts
subject: 530 Physik
subject: 29 Physik, Astronomie

description: Es wurden neuerdings exakte Formeln für die Berechnung der Energieniveaus des sine-Gordon-Modells (im endlichen Volumen) vorgestellt. Die Herleitung der Resultate ist mathematisch nicht ganz rigoros, weshalb eine numerische Überprüfung wünschenswert ist. Simuliert wird das XY-Modell in zwei Dimensionen. Man glaubt, daß es in der gleichen Universalitätsklasse liegt wie das sine-Gordon-Modell mit einem bestimmten Wert der sine-Gordon-Kopplung. Verglichen werden dann einige Punkte der step-scaling-Funktion. Die exakten Formeln gelten für das Kontinuum, deshalb muß erst aus den Simulationen bei endlichem Gitterabstand "a" auf "a=0" extrapoliert werden. Gleichzeitig kann überprüft werden, ob sich eine vorhergesagte Form der Gitterartefakte bestätigen läßt. Um die step-scaling-Funktion aus den theoretischen Vorhersagen zu extrahieren ist es notwendig nichtlineare Integralgleichungen zu lösen. Zur Simulation werden effiziente Cluster-Algorithmen sowie ein "improved estimator" für die Korrelationsfunktion verwendet. Die Arbeit bestätigt sowohl die vorhergesagte Form der Gitterartefakte, als auch die Kontinuums-Vorhersagen im Rahmen der numerischen Genauigkeit.
description: Exact predictions for the finite volume energy spectrum of the sine-Gordon model were presented recently. The derivation of these results invokes steps which are mathematically not entirely rigorous, so a confrontation with numerical results is desirable. The two dimensional XY model is examined with Monte Carlo methods. It is believed to lie in the same universality class as the sine-Gordon model at a certain value of the sine-Gordon coupling. Several points of the step-scaling function are compared to each other. The predictions are valid for the continuum so an extrapolation from simulations at a finitelattice spacing "a" to "a=0" has to be performed. At the same time a prediction for the decay of lattice artifacts can be verified. To extract the step-scaling function from the theoretical predictions it is necessary to solve nonlinear integral equations. Efficient cluster algorithms and an improved estimator for the correlation function are applied in the simulations. The thesis confirms the predicted form of the lattice artifacts as well as the continuum-predictions for the step-scaling function within statistical errors.
Effect of Temperature on CZTS Based Thin Film Solar Cell Performance
Creators: name: Chowdhury, A.
name: Rahaman, M.
name: Islam, M.
name: Rahman, M.
Publisher: name: WIP
Year: 2018
Subjects: Non Silicon-Based Thin Film Photovoltaics
CI(G)S, CdTe and Related Thin Film Solar Cells and Modules

description: 35th European Photovoltaic Solar Energy Conference and Exhibition; 899-902
description: In recent days CZTS based thin film solar cells have attracted much attention due to their favorable electrical and optical properties, low cost and non-toxicity. A maximum laboratory efficiency of 10-12% has been reported for these types of cells. As the cells are subjected to much higher temperatures during outdoor operation, it is important to understand how CZTS cells will perform outdoor. This work investigates the effect of varying temperature on the different components of the dark current, as well as their effects on the cell performance. Among the different components of the dark current, trap-assisted tunneling recombination, thermionic emission and interface recombination are found to have significant contribution to the dark current while thermionic emission is found to be the dominating loss mechanism at high temperature. A calculation of cell efficiency at different temperatures show that the cell efficiency decreases from about 16.3% at 0°C to about only 7.3% at 75 °C.
A New 4-DOF Robot for Rehabilitation of Knee and Ankle-Foot Complex: Simulation and Experiment
Creators: name: Alipour, Afshin
name: Mahjoob, Mohammad J.
name: Fakhari, Zahra
name: Nazarian, Ara
Publisher: name: arXiv
Year: 2020
Subjects: subject: Robotics (cs.RO)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Stationary robotic trainers are lower limb rehab robots which often incorporate an exoskeleton attached to a stationary base. The issue observed in the stationery trainers for simultaneous knee and ankle-foot complex joints is that they restrict the natural motion of ankle-foot in the rehab trainings due to the insufficient Degrees of Freedom (DOFs) of these trainers. A new stationary knee-ankle-foot rehab robot with all necessary DOFs is developed here. A typical rehab training is first implemented in simulation, and then tested on a healthy subject. Results show that the proposed system functions naturally and meets the requirements of the desired rehab training.
description: 23 pages, 14 figures