cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Thermal Properties of Photovoltaic Modules: The Double Function of BIPV Systems
Creators: name: Toledo Arias, C.A.
name: López Vicente, R.
name: Abad, J.
name: Urbina, A.
Publisher: name: WIP
Year: 2017
Subjects: PV System Performance and Integration
Building, Infrastructure and Landscape Applications

description: 33rd European Photovoltaic Solar Energy Conference and Exhibition; 2596-2599
description: Building Integrated Photovoltaics (BIPV) play a crucial role to achieve the target of Net Zero Energy Building (NZEB). However, when a solar panel is fully integrated into the building envelope, its electrical and thermal behavior change compared to open-rack systems. BIPV projects tested and reproducing under real working conditions are essential to validate models and increase the penetration of BIPV systems. This article present the results of four simple squared structures with the same volume and with five faces (base excluded) made by PV modules from four different PV technologies: c-Si, two thin film (a-Si and CdTe) and an emergent organic photovoltaic (OPV). These structures, named PV-Cubes, are monitored with automated data acquisition of several thermal parameters. The results indicate that the highest measured temperature corresponds to the a-Si cube, however under diffuse conditions the a-Si panel has better performance from the thermal point of view. Furthermore, it is highlighted that the temperature differences of inner and outer faces of each panel (and for all face orientations) show a hysteresis when represented against incident irradiation, demonstrating a thermal inertia along a day, which has to be considered both for electrical power delivery and for thermal isolation in the building. The results of this research provide high quality experimental data and contributes to better understanding of BIPV systems from a dual-function perspective.
Performance Analysis of the Domestic Hot Water Production with PV Panels and a Heat Pump
Creators: name: Aguilar Valero, F.J.
name: Quiles, P.V.
Publisher: name: WIP
Year: 2017
Subjects: PV System Performance and Integration
Building, Infrastructure and Landscape Applications

description: 33rd European Photovoltaic Solar Energy Conference and Exhibition; 2515-2519
description: The current work describes an experimental and analytical work, carried out during an entire year, where a domestic hot water heat pump (DHW-HP) that is powered from photovoltaic panels (PV) and from the grid, has been analyzed.
The main aim of the project is focused on showing the real possibilities of using PV panels combined with a heat pump to supply the domestic hot water demand in dwellings. This system has been developed to have high energy efficiency and performance reliability. The experimental results have been used to validate the analytical model and to simulate the system behaviour under other working conditions such as: thermal demand, weather conditions, etc.
Ouranopithecus turkae GüLeç & Sevim & Pehlevan & Kaya 2007
Creators: name: Güleç, Erksin Savaş
name: Sevim, Ayla
name: Pehlevan, Cesur
name: Kaya, Ferhat
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Primates
Hominidae
Ouranopithecus

description: Ouranopithecus turkae
description: Published as part of Güleç, Erksin Savaş, Sevim, Ayla, Pehlevan, Cesur & Kaya, Ferhat, 2007, A new great ape from the late Miocene of Turkey, pp. 153-158 in Anthropological Science 115 (2) on page 154, DOI: 10.1537/ase.070501, http://zenodo.org/record/3098249
Numerical Study of a Particle Method for Gradient Flows
Creators: name: Carrillo, J. A.
name: Huang, Y.
name: Patacchini, F. S.
name: Wolansky, G.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Analysis of PDEs (math.AP)
subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: We study the numerical behaviour of a particle method for gradient flows involving linear and nonlinear diffusion. This method relies on the discretisation of the energy via non-overlapping balls centred at the particles. The resulting scheme preserves the gradient flow structure at the particle level, and enables us to obtain a gradient descent formulation after time discretisation. We give several simulations to illustrate the validity of this method, as well as a detailed study of one-dimensional aggregation-diffusion equations.
description: 27 pages, 21 figures
Low-Rank Autoregressive Tensor Completion for Spatiotemporal Traffic Data Imputation
Creators: name: Chen, Xinyu
name: Lei, Mengying
name: Saunier, Nicolas
name: Sun, Lijun
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Spatiotemporal traffic time series (e.g., traffic volume/speed) collected from sensing systems are often incomplete with considerable corruption and large amounts of missing values, preventing users from harnessing the full power of the data. Missing data imputation has been a long-standing research topic and critical application for real-world intelligent transportation systems. A widely applied imputation method is low-rank matrix/tensor completion; however, the low-rank assumption only preserves the global structure while ignores the strong local consistency in spatiotemporal data. In this paper, we propose a low-rank autoregressive tensor completion (LATC) framework by introducing \textit{temporal variation} as a new regularization term into the completion of a third-order (sensor $\times$ time of day $\times$ day) tensor. The third-order tensor structure allows us to better capture the global consistency of traffic data, such as the inherent seasonality and day-to-day similarity. To achieve local consistency, we design the temporal variation by imposing an AR($p$) model for each time series with coefficients as learnable parameters. Different from previous spatial and temporal regularization schemes, the minimization of temporal variation can better characterize temporal generative mechanisms beyond local smoothness, allowing us to deal with more challenging scenarios such "blackout" missing. To solve the optimization problem in LATC, we introduce an alternating minimization scheme that estimates the low-rank tensor and autoregressive coefficients iteratively. We conduct extensive numerical experiments on several real-world traffic data sets, and our results demonstrate the effectiveness of LATC in diverse missing scenarios.
Microstonyx major cf. erymanethius Pilgrim 1926
Creators: name: Güleç, Erksin Savaş
name: Sevim, Ayla
name: Pehlevan, Cesur
name: Kaya, Ferhat
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Artiodactyla
Suidae
Microstonyx

description: Microstonyx major cf. erymanethius
description: Published as part of Güleç, Erksin Savaş, Sevim, Ayla, Pehlevan, Cesur & Kaya, Ferhat, 2007, A new great ape from the late Miocene of Turkey, pp. 153-158 in Anthropological Science 115 (2) on page 154, DOI: 10.1537/ase.070501, http://zenodo.org/record/3098249
Ultrahigh Energy Cosmic Rays and Black Hole Mergers
Creators: name: Kotera, Kumiko
name: Silk, Joseph
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The recent detection of the gravitational wave source GW150914 by the LIGO collaboration motivates a speculative source for the origin of ultrahigh energy cosmic rays as a possible byproduct of the immense energies achieved in black hole mergers, provided that the black holes have spin as seems inevitable and there are relic magnetic fields and disk debris remaining from the formation of the black holes or from their accretion history. We argue that given the modest efficiency $< 0.01$ required per event per unit of gravitational wave energy release, merging black holes potentially provide an environment for accelerating cosmic rays to ultrahigh energies.
description: 4 pages, version to appear in ApJ Lett., minor changes, but one significant new point: connection made with fast radio bursts
Data Augmentation in High Dimensional Low Sample Size Setting Using a Geometry-Based Variational Autoencoder
Creators: name: Chadebec, Clément
name: Thibeau-Sutre, Elina
name: Burgos, Ninon
name: Allassonnière, Stéphanie
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: In this paper, we propose a new method to perform data augmentation in a reliable way in the High Dimensional Low Sample Size (HDLSS) setting using a geometry-based variational autoencoder. Our approach combines a proper latent space modeling of the VAE seen as a Riemannian manifold with a new generation scheme which produces more meaningful samples especially in the context of small data sets. The proposed method is tested through a wide experimental study where its robustness to data sets, classifiers and training samples size is stressed. It is also validated on a medical imaging classification task on the challenging ADNI database where a small number of 3D brain MRIs are considered and augmented using the proposed VAE framework. In each case, the proposed method allows for a significant and reliable gain in the classification metrics. For instance, balanced accuracy jumps from 66.3% to 74.3% for a state-of-the-art CNN classifier trained with 50 MRIs of cognitively normal (CN) and 50 Alzheimer disease (AD) patients and from 77.7% to 86.3% when trained with 243 CN and 210 AD while improving greatly sensitivity and specificity metrics.
description: accepted to IEEE transactions on pattern analysis and machine intelligence (TPAMI)
Power Loss through Decorative Elements in the Front Glazing of BIPV Modules
Creators: name: Mittag, M.
name: Kutter, C.
name: Ebert, M.
name: Wilson, H.R.
name: Eitner, U.
Publisher: name: WIP
Year: 2017
Subjects: PV System Performance and Integration
Building, Infrastructure and Landscape Applications

description: 33rd European Photovoltaic Solar Energy Conference and Exhibition; 2609-2613
description: Printed module front covers can be designed to mask the geometry of solar cells for Building-Integrated Photovoltaics (BiPV). Such prints reduce the transmittance of the module front layer, which decreases module power. We performed transmittance measurements with large-area and small-area measurement equipment (220 mm / 620 mm integrating sphere) on different samples and find measurements applying small-area illumination to result in lower transmittance ( = 3.1abs% at 40% coverage) due to lateral losses in the samples. By measuring the power of modules with different design prints we find that the results do not correspond to transmittance measurements of the glass covers alone, even if a large-area transmittance measurement setup is used ( = 16%abs at 40% coverage). We attribute the differences between optical and electrical measurements to module internal reflection, optical coupling of the solar cell, partial transmittance by coatings and diffuse scattering of decorative prints. Differences increase with the share of coated glass area. We perform electrical and LBIC measurements on modules with printed and unprinted reference glass covers and calculate the effective transmittance. Short circuit currents calculated by spatial integration of LBIC results are in good agreement with results from ISC measurements. We predict the effective transmittance for arbitrary prints based on selected ISC measurements and find them to be in good agreement to measurements. In conclusion, we find transmittance measurements on printed glass alone to be insufficient to predict the optical power losses as they overestimate the optical loss.
Pliocervus sp. Hilzheimer 1922
Creators: name: Güleç, Erksin Savaş
name: Sevim, Ayla
name: Pehlevan, Cesur
name: Kaya, Ferhat
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Artiodactyla
Cervidae
Pliocervus
Pliocervus sp.

description: Pliocervus sp.
description: Published as part of Güleç, Erksin Savaş, Sevim, Ayla, Pehlevan, Cesur & Kaya, Ferhat, 2007, A new great ape from the late Miocene of Turkey, pp. 153-158 in Anthropological Science 115 (2) on page 154, DOI: 10.1537/ase.070501, http://zenodo.org/record/3098249
Bank distress in the news: Describing events through deep learning
Creators: name: Rönnqvist, Samuel
name: Sarlin, Peter
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: Information Retrieval (cs.IR)
subject: Neural and Evolutionary Computing (cs.NE)
subject: Computational Finance (q-fin.CP)
subject: FOS: Computer and information sciences
subject: FOS: Economics and business

description: While many models are purposed for detecting the occurrence of significant events in financial systems, the task of providing qualitative detail on the developments is not usually as well automated. We present a deep learning approach for detecting relevant discussion in text and extracting natural language descriptions of events. Supervised by only a small set of event information, comprising entity names and dates, the model is leveraged by unsupervised learning of semantic vector representations on extensive text data. We demonstrate applicability to the study of financial risk based on news (6.6M articles), particularly bank distress and government interventions (243 events), where indices can signal the level of bank-stress-related reporting at the entity level, or aggregated at national or European level, while being coupled with explanations. Thus, we exemplify how text, as timely, widely available and descriptive data, can serve as a useful complementary source of information for financial and systemic risk analytics.
description: Forthcoming in Neurocomputing. arXiv admin note: substantial text overlap with arXiv:1507.07870 [in version 1]
Supplementary document for Temporal multiplexing complex amplitude computer-generated holography for 3D display with natural depth perception - 7347253.pdf
Creators: name: Pi, Dapu
name: Ye, Yiqi
name: Cheng, Ke
name: Gu, Min
name: Fang, Xinyuan
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Uncategorized

description: Supplement 1
Sun Hub – Energy Hub for Outdoor Tables
Creators: name: Poulsen, P.B.
name: Dos Reis Benatto, G.A.
name: Riedel, N.
name: Thorsteinsson, S.
name: Alejo Santamaria Lancia, A.
name: Symonowicz, J.K.
name: Retoft, K.
name: Mogensen, I.
Publisher: name: WIP
Year: 2017
Subjects: PV System Performance and Integration
Building, Infrastructure and Landscape Applications

description: 33rd European Photovoltaic Solar Energy Conference and Exhibition; 2771-2774
description: Solar cells integrated into products are attracting more and more attention especially due to the
dramatically declining cost of solar cells. Furthermore, we are getting more dependent on portable units like mobile
phones, tablets and PCs which has to be charged to be of any use. Especially on festivals where people camps for
several days it can be hard to have your portable units charged. In this this work we report a solar powered hub, as an
add-on to a table in the urban environment for charging mobile phones and tablets and other handheld devices
through USBs, charging laptops through AC connections, providing opportunity to stream music via Bluetooth and
play it from a handheld device to the table and lastly to provide LED lighting on the table during the dark hours. 3
prototypes of the system was built and tested at the Roskilde Festival 2017. Electrical logger units were built into the
3 Sun Hubs to monitor the overall energy system and the consumption of each functionality in the table.
An explicit generating function arising in counting binomial coefficients divisible by powers of primes
Creators: name: Spiegelhofer, Lukas
name: Wallner, Michael
Publisher: name: arXiv
Year: 2016
Subjects: subject: Number Theory (math.NT)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 11B65, 05A15 (primary), 11A63, 11B50, 05A16 (secondary)

description: For a prime $p$ and nonnegative integers $j$ and $n$ let $\vartheta_p(j,n)$ be the number of entries in the $n$-th row of Pascal's triangle that are exactly divisible by $p^j$. Moreover, for a finite sequence $w=(w_{r-1}\cdots w_0)\neq (0,\ldots,0)$ in $\{0,\ldots,p-1\}$ we denote by $\lvert n\rvert_w$ the number of times that $w$ appears as a factor (contiguous subsequence) of the base-$p$ expansion $n=(n_{μ-1}\cdots n_0)_p$ of $n$. It follows from the work of Barat and Grabner (Digital functions and distribution of binomial coefficients, J. London Math. Soc. (2) 64(3), 2001), that $\vartheta_p(j,n)/\vartheta_p(0,n)$ is given by a polynomial $P_j$ in the variables $X_w$, where $w$ are certain finite words in $\{0,\ldots,p-1\}$, and each variable $X_w$ is set to $\lvert n\rvert_w$. This was later made explicit by Rowland (The number of nonzero binomial coefficients modulo $p^α$, J. Comb. Number Theory 3(1), 2011), independently from Barat and Grabner's work, and Rowland described and implemented an algorithm computing these polynomials $P_j$. In this paper, we express the coefficients of $P_j$ using generating functions, and we prove that these generating functions can be determined explicitly by means of a recurrence relation. Moreover, we prove that $P_j$ is uniquely determined, and we note that the proof of our main theorem also provides a new proof of its existence. Besides providing insight into the structure of the polynomials $P_j$, our results allow us to compute them in a very efficient way.
description: 30 pages
Sizing of Urban Distribution Transformers in a Neighbourhood with PV Generation and Energy Storage
Creators: name: Freitas, S.
name: Santos, T.
name: Brito, M.C.
Publisher: name: WIP
Year: 2017
Subjects: PV System Performance and Integration
Grid and Energy System Integration

description: 33rd European Photovoltaic Solar Energy Conference and Exhibition; 2761-2765
description: The goal of this work is to understand the power balance on urban distribution transformers, and the changes in power capacities that may be needed in a large-scale PV deployment scenario. Hourly load demand by power transformer was estimated for a suburb of Lisbon, Portugal, from reference profiles published by the distribution grid operator, and hourly PV production was calculated using irradiance simulations from SolarAnalyst extension for ArcGIS, for building rooftops, and the LadyBug plug-in for Grasshopper/Rhinoceros, for building façades. The PV potential greatly surpasses the transformers’ capacity, suggesting that network upgrades will be unavoidable in the future. Additionally, a storage strategy for maximization of self-consumption was investigated to smooth power ramps in the grid. It is shown that without proper management strategy, small storage capacity might lead to higher ramps, whilst larger capacity might smooth ramps when the PV production peaks.
Towards Axion Monodromy Inflation with Warped KK-Modes
Creators: name: Hebecker, Arthur
name: Moritz, Jakob
name: Westphal, Alexander
name: Witkowski, Lukas T.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a particularly simple model of axion monodromy: Our axion is the lowest-lying KK-mode of the RR-2-form-potential $C_2$ in the standard Klebanov-Strassler throat. One can think of this inflaton candidate as being defined by the integral of $C_2$ over the $S^2$ cycle of the throat. It obtains an exponentially small mass from the IR-region in which the $S^2$ shrinks to zero size both with respect to the Planck scale and the mass scale of local modes of the throat. Crucially, the $S^2$ cycle has to be shared between two throats, such that the second locus where the $S^2$ shrinks is also in a warped region. Well-known problems like the potentially dangerous back-reaction of brane/antibrane pairs and explicit supersymmetry breaking are not present in our scenario. However, the inflaton back-reaction starts to deform the geometry strongly once the field excursion approaches the Planck scale. We derive the system of differential equations required to treat this effect quantitatively. Numerical work is required to decide whether back-reaction makes the model suitable for realistic inflation. While we have to leave this crucial issue to future studies, we find it interesting that such a simple and explicit stringy monodromy model allows an originally sub-Planckian axion to go through many periods with full quantitative control before back-reaction becomes strong. Also, the mere existence of our ultra-light throat mode (with double exponentially suppressed mass) is noteworthy.
description: 28 pages, 3 figures; v2: references added; v3: Corrected an underestimate of supergravity back-reaction in Eq. (36); results changed accordingly; added section 6 which develops the methodology for the 10d non-linear back-reaction; added references
Paleotragus cf. quadricornis
Creators: name: Güleç, Erksin Savaş
name: Sevim, Ayla
name: Pehlevan, Cesur
name: Kaya, Ferhat
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Artiodactyla
Giraffidae
Paleotragus

description: Paleotragus cf. quadricornis
description: Published as part of Güleç, Erksin Savaş, Sevim, Ayla, Pehlevan, Cesur & Kaya, Ferhat, 2007, A new great ape from the late Miocene of Turkey, pp. 153-158 in Anthropological Science 115 (2) on page 154, DOI: 10.1537/ase.070501, http://zenodo.org/record/3098249
App for Designing Residential Solar PV Systems with DC-Coupled Battery Storage
Creators: name: Gritzman, A.
name: Kurien, T.
name: Chiwewe, T.
name: Ditsela, J.
Publisher: name: WIP
Year: 2017
Subjects: PV System Performance and Integration
Design and Operation of PV Systems

description: 33rd European Photovoltaic Solar Energy Conference and Exhibition; 2434-2439
description: In recent years, decreasing costs of solar PV have fuelled interest in the residential PV market. In contrast to
North America and Europe which encourage grid-tie PV, in many African cities it is illegal to feed power back to the grid, and
in the few cities where it is legal, the feed-in tariff is unattractive. The inability to feed excess energy back to the grid, coupled
with grid instability and blackouts, has resulted in increased popularity of battery-based PV systems in African cities. However,
homeowners embarking on this journey quickly discover that they are ill equipped to navigate the many options presented by
suppliers. In this paper, we present a consumer-friendly app that empowers homeowners to design their own battery-based PV
system. The app selects components from a live catalogue, which is based on the availability of equipment from nearby retailers,
and optimises the system on price and performance. The app is accessible via a web app which can be viewed on a mobile,
tablet, or desktop device.
SoK: Yield Aggregators in DeFi
Creators: name: Cousaert, Simon
name: Xu, Jiahua
name: Matsui, Toshiko
Publisher: name: arXiv
Year: 2021
Subjects: subject: Portfolio Management (q-fin.PM)
subject: FOS: Economics and business

description: Yield farming has been an immensely popular activity for cryptocurrency holders since the explosion of Decentralized Finance (DeFi) in the summer of 2020. In this Systematization of Knowledge (SoK), we study a general framework for yield farming strategies with empirical analysis. First, we summarize the fundamentals of yield farming by focusing on the protocols and tokens used by aggregators. We then examine the sources of yield and translate those into three example yield farming strategies, followed by the simulations of yield farming performance, based on these strategies. We further compare four major yield aggregrators -- Idle, Pickle, Harvest and Yearn -- in the ecosystem, along with brief introductions of others. We systematize their strategies and revenue models, and conduct an empirical analysis with on-chain data from example vaults, to find a plausible connection between data anomalies and historical events. Finally, we discuss the benefits and risks of yield aggregators.
Solar Photovoltaic for Sustainable Use in Trituration Oil Olive Unit and Energy Efficiency in Cold and Hydric Storage
Creators: name: Mounir, S.
name: Ladouy, S.
name: Harrouni, K.E.
name: Khabbazi, A.
name: Maaloufa, Y.
Publisher: name: WIP
Year: 2017
Subjects: PV System Performance and Integration
Design and Operation of PV Systems

description: 33rd European Photovoltaic Solar Energy Conference and Exhibition; 2447-2449
description: The object of this work is the use of photovoltaic solar in sustainability, especially in agriculture so as to feed a trituration oil olive unit and to manage the excess of electricity for a refrigeration system to store growing vegetables, fruits and water pump to irrigate soil.
The study concerns a rural area in Ouazzane a city in the north of Morocco. The first step consists of studying the irradiation of this city using PVgis. The second step consists of sizing the photovoltaic installation necessary for the trituration oil olive unit which works just three months per year, the rest of the year , the energy produced by the PV system is stored as a thermal or hydric energy to be used to pump water for irrigation and refrigeration system necessary to store vegetables and fruits. The capacity of this PV solar system is 21 Kwp which assured by 150 PV panel. The preliminary results indicate an important gain in term of energy and CO2 gas emissions.
Effective models of inflation from a non-local framework
Creators: name: Koshelev, Alexey S.
name: Kumar, K. Sravan
name: Moniz, Paulo Vargas
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The dilaton is a possible inflaton candidate following recent CMB data allowing a non-minimal coupling to the Ricci curvature scalar in the early Universe. In this paper, we introduce an approach that has seldom been used in the literature, namely dilaton inflation with non-local features. More concretely, employing non-local features expressed in J. High Energy Phys. 04 (2007) 029, we study quadratic variations around a de Sitter geometry of an effective action with a non-local dilaton. The non-locality refers to an infinite derivative kinetic term involving the operator $\mathcal{F}\left(\Box\right)$. Algebraic roots of the characteristic equation $\mathcal{F}(z)=0$ play a crucial role in determining the properties of the theory. We subsequently study the cases when $\mathcal{F}\left(\Box\right)$ has one real root and one complex root, from which we retrieve two concrete effective models of inflation. In the first case we retrieve a class of single field inflations with universal prediction of $n_{s}\sim0.967$ with any value of the tensor to scalar ratio $r<0.1$ intrinsically controlled by the root of the characteristic equation. The second case involves a new class of two field conformally invariant models with a peculiar quadratic cross-product of scalar fields. In this latter case, we obtain Starobinsky like inflation through a spontaneously broken conformal invariance. Furthermore, an uplifted minimum of the potential, which accounts for the vacuum energy after inflation is produced naturally through this mechanism intrinsically within our approach.
description: 13 pages, title changed, discussion added, matches with the version accepted in PRD
title: THE HOTCHPOTCH OF THE INTERNET GOVERNANCE PARADIGM
title: Adela Stanikzai
titleType: Other
Creators: name: Adela, Stanikzai
Publisher: name: Zenodo
Year: 2024

description: The question of "Who Owns the Internet?" uncovers a complex reality: the internet operates as a decentralized network governed by a web of agreements among governments, private corporations, and international bodies, with no single controlling entity. This decentralized nature presents challenges in harmonizing laws and standards across jurisdictions. While major private companies, including Tier 1 ISPs and tech giants, manage significant infrastructure and data traffic, governments and organizations like ICANN play crucial roles in regulation and standard-setting. Aligning international regulations with local practices is essential due to the internet's borderless nature. Key challenges include cybersecurity, data privacy, and intellectual property, which complicate efforts to develop cohesive legal frameworks that support a global digital economy while respecting national sovereignty. The concept of internet access as a fundamental human right has gained prominence, with international declarations and national frameworks in countries such as Costa Rica, Estonia, and Finland recognizing its importance for freedoms like speech and education. However, debates continue over whether internet access should be classified as a fundamental right, with critics concerned about practical implications and governmental burdens. Proponents argue that in the digital age, such access is vital for exercising human rights and fostering equitable development. This ongoing discourse highlights the need for adaptable legal frameworks to manage evolving digital challenges.
Quantifying out-of-station waiting time in oversaturated urban metro systems
Creators: name: Zhu, Kangli
name: Cheng, Zhanhong
name: Wu, Jianjun
name: Yuan, Fuya
name: Sun, Lijun
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: Metro systems in megacities such as Beijing, Shenzhen and Guangzhou are under great passenger demand pressure. During peak hours, it is common to see oversaturated conditions (i.e., passenger demand exceeds network capacity), which bring significant operational risks and safety issues. A popular control intervention is to restrict the entering rate during peak hours by setting up out-of-station queueing with crowd control barriers. The \textit{out-of-station waiting} can make up a substantial proportion of total travel time but is not well-studied in the literature. Accurate quantification of out-of-station waiting time is important to evaluating the social benefit and cost of service scheduling/optimization plans; however, out-of-station waiting time is difficult to estimate because it is not a part of smart card transactions. In this study, we propose an innovative method to estimate the out-of-station waiting time by leveraging the information from a small group of transfer passengers -- those who transfer from nearby bus routes to the metro station. Based on the estimated transfer time for this small group, we first infer the out-of-station waiting time for all passengers by developing a Gaussian Process regression with a Student-$t$ likelihood and then use the estimated out-of-station waiting time to build queueing diagrams. We apply our method to the Tiantongyuan North station of Beijing metro as a case study; our results show that the maximum out-of-station waiting time can reach 15 minutes, and the maximum queue length can be over 3000 passengers. Our results suggest that out-of-station waiting can cause significant travel costs and thus should be considered in analyzing transit performance, mode choice, and social benefits. To the best of our knowledge, this paper is the first quantitative study for out-of-station waiting time.
Samotherium sp.
Creators: name: Güleç, Erksin Savaş
name: Sevim, Ayla
name: Pehlevan, Cesur
name: Kaya, Ferhat
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Artiodactyla
Giraffidae
Samotherium

description: Samotherium sp.
description: Published as part of Güleç, Erksin Savaş, Sevim, Ayla, Pehlevan, Cesur & Kaya, Ferhat, 2007, A new great ape from the late Miocene of Turkey, pp. 153-158 in Anthropological Science 115 (2) on page 154, DOI: 10.1537/ase.070501, http://zenodo.org/record/3098249
Novel Soiling Detection System for Solar Panels
Creators: name: Korevaar, M.
name: Mes, J.
name: Nepal, P.
name: Snijders, G.
name: Van Mechelen, X.
Publisher: name: WIP
Year: 2017
Subjects: PV System Performance and Integration
Design and Operation of PV Systems

description: 33rd European Photovoltaic Solar Energy Conference and Exhibition; 2349-2351
description: Environmental factors such as wind, rain and back panel temperature all affect the PV plant performance ratio; but, in many environments, soiling of PV modules has the largest impact on the performance ratio. Cost effective soiling measurements within a solar plant can give reliable insights into the soiling behaviour over the whole production area, allow for an optimal cleaning schedule and trigger action after a dust storm.
Kipp & Zonen present a novel system for measuring the soiling on PV plants, the DustIQ. Using the Optical Soiling Monitoring technology the DustIQ measures the soiling without need for manual daily cleaning, moving parts or water. The system communicates via a Modbus® protocol through a two-wire RS-485 connection.
Different amounts and colours of soiling were characterised and a linear relationship between DustIQ signal and PV glass transmission loss was found. And different colours of dust result in a different linear slope. The effect of dust grain size was also investigated and no effect on the DustIQ signal and transmission loss was found. Furthermore, a rooftop PV monitoring station was built up where modules can be artificially soiled.
Fast Phase-manipulation of the Single Nuclear Spin in Solids by Rotating Fields
Creators: name: Shimo-Oka, T.
name: Tokura, Y.
name: Suzuki, Y.
name: Mizuochi, N.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose fast phase-gates of single nuclear spins interacting with single electron spins. The gate operation utilizes geometric phase shifts of the electron spin induced by fast/slow rotating fields; the path difference depending on nuclear spin states enables nuclear phase shifts. The gate time is inversely proportional to the frequency of the slow rotating field. As an example, we use nitrogen-vacancy centers in diamond, and show the phase-gate time orders of magnitude shorter than previously reported. We also show the robustness of the gate against decoherence and systematic errors.
A Multifunctional Low-Cost Scalable Field Monitoring System
Creators: name: Montes, C.
name: González, O.
name: Moncho, G.
name: Padrón, M.
name: Fernández, J.
name: González-Diaz, B.
name: Hernandez-Rodriguez, C.
name: Sanchiz, J.
name: Guerrero-Lemus, R.
name: Rodríguez, J.
name: Friend, M.
name: Cendagorta, M.
Publisher: name: WIP
Year: 2017
Subjects: PV System Performance and Integration
Solar Resource and Forecasting

description: 33rd European Photovoltaic Solar Energy Conference and Exhibition; 2498-2500
description: In this work, a new outdoor characterization system for photovoltaic solar modules is presented. The new low cost system has been designed to acquire the electrical parameters inside of each module through Modbus. Each module is connected to a supervisory system that collects and store the data. The supervisory system allows real-time control of the whole system. This characterization system has been fully designed, built and installed by the Instituto Tecnológico y de Energías Renovables S.A., in collaboration with the University of La Laguna.
Boundary regularity estimates in Hölder spaces with variable exponent
Creators: name: Vita, Stefano
Publisher: name: arXiv
Year: 2021
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35B45, 35B65, 35J25, 46E30

description: We present a general blow-up technique to obtain local regularity estimates for solutions, and their derivatives, of second order elliptic equations in divergence form in Hölder spaces with variable exponent. The procedure allows to extend the estimates up to a portion of the boundary where Dirichlet or Neumann boundary conditions are prescribed and produces a Schauder theory for partial derivatives of solutions of any order $k\in\mathbb{N}$. The strategy relies on the construction of a class of suitable regularizing problems and an approximation argument. The estimates we obtain are sharp with respect to the regularity or integrability conditions on variable coefficients, boundaries, boundary data and right hand sides respectively in Hölder and Lebesgue spaces, both with variable exponent
description: 30 pages
Coulomb drag in anisotropic systems: a theoretical study on a double-layer phosphorene
Creators: name: Saberi-Pouya, S.
name: Vazifehshenas, T.
name: Farmanbar, M.
name: Salavati-fard, T.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We theoretically study the Coulomb drag resistivity in a double-layer electron system with highly anisotropic parabolic band structure using Boltzmann transport theory. As an example, we consider a double-layer phosphorene on which we apply our formalism. This approach, in principle, can be tuned for other double-layered systems with paraboloidal band structures. Our calculations show the rotation of one layer with respect to another layer can be considered a way of controlling the drag resistivity in such systems. As a result of rotation, the off-diagonal elements of drag resistivity tensor have non-zero values at any temperature. In addition, we show that the anisotropic drag resistivity is very sensitive to the direction of momentum transfer between two layers due to highly anisotropic inter-layer electron-electron interaction and also the plasmon modes. In particular, the drag anisotropy ratio, \r{ho}yy/\r{ho}xx, can reach up to ~ 3 by changing the temperature. Furthermore,our calculations suggest that including the local field correction in dielectric function changes the results significantly. Finally, We examine the dependence of drag resistivity and its anisotropy ratio on various parameters like inter-layer separation, electron density, short-range interaction and insulating substrate/spacer.
description: 10 pages, 9 figures
Nonlinear wave damping due to multi-plasmon resonances
Creators: name: Brodin, Gert
name: Ekman, Robin
name: Zamanian, Jens
Publisher: name: arXiv
Year: 2016
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: For short wavelengths, it is well known that the linearized Wigner-Moyal equation predicts wave damping due to wave-particle interaction, where the resonant velocity shifted from the phase velocity by a velocity $v_q = \hbar k/2m$. Here $\hbar$ is the reduced Planck constant, $k$ is the wavenumber and $m$ is the electron mass. Going beyond linear theory, we find additional resonances with velocity shifts $n v_q$, $n = 2, 3, \ldots$, giving rise to a new wave-damping mechanism that we term \emph{multi-plasmon damping}, as it can be seen as the simultaneous absorption (or emission) of multiple plasmon quanta. Naturally this wave damping is not present in classical plasmas. For a temperature well below the Fermi temperature, if the linear ($n = 1$) resonant velocity is outside the Fermi sphere, the number of linearly resonant particles is exponentially small, while the multi-plasmon resonances can be located in the bulk of the distribution. We derive sets of evolution equations for the case of two-plasmon and three-plasmon resonances for Langmuir waves in the simplest case of a fully degenerate plasma. By solving these equations numerically for a range of wave-numbers we find the corresponding damping rates, and we compare them to results from linear theory to estimate the applicability. Finally, we discuss the effects due to a finite temperature.
description: Accepted for publication in Plasma Physics and Controlled Fusion
Band alignment of two-dimensional lateral heterostructures
Creators: name: Zhang, Junfeng
name: Xie, Weiyu
name: Zhao, Jijun
name: Zhang, Shengbai
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Recent experimental synthesis of two-dimensional (2D) heterostructures opens a door to new opportunities in tailoring the electronic properties for novel 2D devices. Here, we show that a wide range of lateral 2D heterostructures could have a prominent advantage over the traditional three-dimensional (3D) heterostructures, because their band alignments are insensitive to the interfacial conditions. They should be at the Schottky-Mott limits for semiconductor-metal junctions and at the Anderson limits for semiconductor junctions, respectively. This fundamental difference from the 3D heterostructures is rooted in the fact that, in the asymptotic limit of large distance, the effect of the interfacial dipole vanishes for 2D systems. Due to the slow decay of the dipole field and the dependence on the vacuum thickness, however, studies based on first-principles calculations often failed to reach such a conclusion. Taking graphene/hexagonal-BN and MoS2/WS2 lateral heterostructures as the respective prototypes, we show that the converged junction width can be order of magnitude longer than that for 3D junctions. The present results provide vital guidance to high-quality transport devices wherever a lateral 2D heterostructure is involved.
Techno-Economic Analysis of Off-Grid Photovoltaic LED Road Lighting Systems for Turkey
Creators: name: Duman, A.C.
name: Güler, O.
Publisher: name: WIP
Year: 2017
Subjects: PV System Performance and Integration
Design and Operation of PV Systems

description: 33rd European Photovoltaic Solar Energy Conference and Exhibition; 2440-2446
description: In this study, techno-economic analysis of off-grid PV LED road lighting systems have been carried out for two provinces of Turkey. DIALux software is used for lighting calculations and HOMER software is used for energy system modeling and simulations. Calculations were made for two road lighting classes (M4, M5), two pole spacing options (maximum, minimum), five scenarios (current case and future projections for cases of 25% increase in electricity unit prices, 25% decrease in PV panel and battery costs, 50% decrease in PV panel and battery costs and 25% increase in electricity unit prices with 50% decrease in PV panel and battery costs) and for two provinces (Antalya and stanbul). As a result of the study, it has been obtained that today off-grid PV LED road lighting systems cannot payback themselves both in Antalya and stanbul. In the most favorable future scenario, payback periods can go below system lifetime and reach 14,23 and 21 years for Antalya and stanbul respectively in M4 road lighting class. The results showed that, even though the cost of single pole system increases in maximum pole spacing case, the cost of the entire system reduces due to the installation of lesser amount of lighting poles.
Tragoportax gaudryi Pilgrim 1937
Creators: name: Güleç, Erksin Savaş
name: Sevim, Ayla
name: Pehlevan, Cesur
name: Kaya, Ferhat
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Artiodactyla
Bovidae
Tragoportax

description: Tragoportax gaudryi
description: Published as part of Güleç, Erksin Savaş, Sevim, Ayla, Pehlevan, Cesur & Kaya, Ferhat, 2007, A new great ape from the late Miocene of Turkey, pp. 153-158 in Anthropological Science 115 (2) on page 154, DOI: 10.1537/ase.070501, http://zenodo.org/record/3098249
Design, Fabrication and Techno-Economic Analysis of Solar Energy Conversion System Based on Flexible Solar Panels
Creators: name: Esmaeili Shayan, M.
name: Najafi, G.
name: Banakar, A.
Publisher: name: WIP
Year: 2017
Subjects: PV System Performance and Integration
Building, Infrastructure and Landscape Applications

description: 33rd European Photovoltaic Solar Energy Conference and Exhibition; 2582-2589
description: In this study, photo-voltaic system based on flexible solar panels was designed, manufactured and evaluated on a scale of 1m2 and 56W. Conventional photo-voltaic systems cannot be used on curved surfaces. According to this, a flexible system was analyzed in real terms on a flat, cylindrical and hemispherical surface. Recognizing the importance of environmental variables, temperature sensing system to receive data and communicate online with LabVIEW software was designed and built, as well as economic analysis of the systems was carried out using the COMFAR software. Meteorological station data was obtained at the same time. Additionally, the Taguchi experimental design and quality specifications as "Bigger is better" was used to select the best system. Taguchi model showed: if the system of selection based on the optimal manufacturing process and variables is applied, then the system deployed on flat surface and standard condition takes the fill factor of 0.73 and maximum power production capacity equal to 46.71W with 7.09% efficiency. As well as, the system deployed on cylindrical and hemispherical surfaces have fill factor of 0.88 and 0.84, respectively. Their maximum power production capacities are 55.18W and 57.50W respectively with 7.45% and 7.45% efficiencies. Economic analysis indicated: the values of Internal Return Rate (IRR) with deployment on flat, cylindrical and hemispherical surfaces were 23.82%, 26.70% and 27.46%, respectively. And, their Net Present Value (NPV) were 6.747, 9.952 and 10.830 Million Rials. Economic justification for attracting investment projects were ranked respectively based on the hemispherical, cylindrical and flat surfaces.
A variational approach for the ground state profile of a trapped spinor-BEC: A detailed study of phase transition in spin-1 condensate at zero magnetic field
Creators: name: Kanjilal, Projjwal K.
name: Bhattacharyay, A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: In this article we introduce a multi-modal variational method to analytically estimate the full number- and corresponding energy-density profile of a spin-1 Bose-Einstein condensate (BEC) for a number of particles as low as 500 under harmonic confinement. To apply this method, we consider a system of spin-1 BEC under three-dimensional isotropic and effective one-dimensional harmonic confinement in the absence (negligible presence) of the magnetic field which has ground state candidates of comparable energy. It should be noted that in such circumstances kinetic energy contribution to the ground state cannot be neglected which puts the applicability of Thomas-Fermi approximation to question. For anti-ferromagnetic condensates, the T-F approximated energy difference between the competing stationary states (ground state and the first excited state) is approximately 0.3\%. As T-F approximation is only good for condensates with a large number of particles, T-F approximated predictions can completely go wrong especially for small condensates. This is where comes the role of a detailed analysis using our variational method, which incorporates the kinetic energy contribution and accurately estimates the number- and energy-density profile even for condensates having a small number of particles. Results of our analytical method are supported by numerical simulation. This variational method is general and can be extended to other similar/higher-dimensional problems to get results beyond the accuracy of the Thomas-Fermi approximation.
description: 19 pages, 17 figures