cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
FAIRmat guide to writing data management plans
Creators: name: Mansour, Ahmed E.
name: Rotheray, Lucia
name: Helbig, Kerstin
name: Bott, Silvana
name: Weber, Heiko B.
name: Aeschlimann, Martin
name: Draxl, Claudia
Publisher: name: Zenodo
Year: 2023
Subjects: CoRDI 2023
Data Management Plans
Research Data Management
RDM
FDM
NOMAD
Data life cycle

description: This poster elaborates on FAIRmat’s effort in guiding physicists and materials scientists to writing DMPs that comply with the requirements of the German Research Foundation (Deutsche Forschungsgemeinschaft, DFG). The poster has been presented in the 1st Conference on Research Data Infrastructure (CoRDI 2023) which took place on Septmeber 12 - 14, 2023, in Karlsruhe, Germany. Detailed description can be found in the conference proceedings: https://doi.org/10.52825/CoRDI.v1i.378
The Explorative Strategy of Engagement: Atelier Bow-Wow’s Rebière Street Project in Paris
Creators: name: Nielsen, Johan
name: Schoonjans, Yves
name: Scheerlinck, Kris
Publisher: name: FOOTPRINT
Year: 2018

description: The project of Rebière Street in Paris is the first housing project of Atelier Bow-Wow outside Japan. In the framework of the Porte Pouchet renovation project, a portion of the street along the cemetery was declassified to reduce its width and to build 180 apartments in the resulting free strip. The different plots were assigned to several local and foreign architecture offices. This project is symptomatic of an emerging practice in architecture that sees offices with discourses based on local anchorage taking advantage of globalisation to propose cutting-edge spatial quality in remote locations. The close reading of the project with tools provided by the sociology of engagement allows valuable insights in the production of form in remote practice. If human primary relation to the environment coincides with a regime of engagement based on familiarity, in remote practice the relation to the environment and the local anchorage are de facto mediated. This mediation implies a systemisation of the design process. The legitimacy of this systematisation is by nature questionable and can be a source of doubt or anxiety. Addressing the design process in relation to the ideas of scale of confidence, seizure, adherence and the explorative regime of engagement this article examines how the attempts of Atelier Bow-Wow to deal with the remoteness of the site influence the production of form.
description: FOOTPRINT, Issue # 22 | Spring / Summer 2018 | Exploring Architectural Form: A Configurative Triad
Data Encryption based on 9D Complex Chaotic System with Quaternion for Smart Grid
Creators: name: Zhang, Fangfang
name: Huang, Zhe
name: Kou, Lei
name: Li, Yang
name: Cao, Maoyong
name: Ma, Fengying
Publisher: name: arXiv
Year: 2022
Subjects: subject: Systems and Control (eess.SY)
subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: With the development of smart grid, the operation and control of power system is realized through power communication network, especially the power production and enterprise management business involve a large amount of sensitive information, and the requirements for data security and real-time transmission are gradually improved. In this paper, a new 9D complex chaotic system with quaternion is proposed for the encryption of smart grid data. Firstly, a new 9D complex chaotic system with quaternion is proposed, and its attractors, bifurcation diagram, complexity, and 0-1 test are analyzed. Secondly, the pseudo-random sequences are generated by the new chaotic system to encrypt power data. Finally, the proposed encryption algorithm is verifed with power data and images in the smart grid, which can ensure the encryption security and real-time. The verifcation results show that the proposed encryption scheme is technically feasible and available for power data and image encryption in smart grid.
description: Accepted by Chinese Physics B
title: Economic Space
title: On the Analysis and Interpretation of Pottery Production and Distribution
titleType: Subtitle
Creators: name: Meyer, Michael
name: Daszkiewicz, Małgorzata
name: Schneider, Gerwulf
name: Bernbeck, Reinhard
name: Heeb, Bernhard S.
name: Hegewisch, Morten
name: Kohlmeyer, Kay
name: Näser, Claudia
name: Polla, Silvia
name: Schultze, Erdmute
name: Schweigart, Fleur
name: Warburton, David A.
Publisher: name: Freie Universität Berlin
Year: 2016
Subjects: subject: Economy
subject: production
subject: exchange
subject: value
subject: infrastructure
subject: archaeometry
subject: archaeoceramology
subject: distribution
subject: 900 Geschichte und Geografie::930 Geschichte des Altertums (bis ca. 499), Archäologie

description: Ceramics are particularly well suited for investigating general patterns of the distribution of premodern products. Archaeometric methods, used to determine raw materials and production techniques, permit the identification of places of production. The work of the research group presented here pursues two objectives: (i) to investigate the usefulness of portable X-ray fluorescence equipment for the analysis of ceramics and (ii) to identify, interpret and study distribution areas of ceramic products in comparative prospective. The paper discusses key economic concepts, sets out the archaeometric methodology and presents initial results in the context of two examples.
Electro-Optical Modeling of a ZnO/Cu2O Subcell in a Silicon-Based Tandem Heterojunction Solar Cell
Creators: name: Nordseth, O.
name: Fara, L.
name: Kumar, R.
name: Foss, S.E.
name: Dumitru, C.
name: Muscurel, V.-F.
name: Dragan, F.
name: Craciunescu, D.
name: Bergum, K.
name: Haug, H.
name: Sterian, P.
name: Chilibon, I.
name: Vasiliu, C.
name: Baschir, L.
name: Savastru, D.
name: Monakhov, E.
name: Svensson, B.G.
Publisher: name: WIP
Year: 2017
Subjects: New Materials and Concepts for Photovoltaic Devices
New Materials and Concepts for Cells and Modules

description: 33rd European Photovoltaic Solar Energy Conference and Exhibition; 172-177
description: In this work, the optical and electrical characteristics of a ZnO/Cu2O subcell in a Si-based tandem heterojunction solar cell configuration were investigated. Highly Al-doped ZnO and undoped Cu2O thin films were prepared on quartz substrates by magnetron sputter deposition. Thermal annealing of the Cu2O layer at 900°C
enhances the electrical properties and reduces optical absorption, presumably as a result of increased grain size. Hall effect measurements show that the majority carrier (hole) mobility increases from 10 to 50 cm2/Vs and the resistivity decreases from 560 to 200 Ωcm after annealing. Numerical modeling was carried out to investigate the effect of incorporating a buffer layer between the ZnO emitter layer and the Cu2O absorber layer on the optical and electrical characteristics of the ZnO/Cu2O subcell. The analysis suggests that the performance of the ZnO/Cu2O subcell can be improved by the incorporation of a ZnS, TiO2, or Ga2O3 buffer layer as a result of reduced conduction band offset.
Common Sense Geography and Ancient Geographical Texts
Creators: name: Dan, Anca
name: Crom, Wolfgang
name: Geus, Klaus
name: Görz, Günther
name: Guckelsberger, Kurt
name: König, Viola
name: Poiss, Thomas
name: Thiering, Martin
Publisher: name: Freie Universität Berlin
Year: 2016
Subjects: subject: Common sense geography
subject: ancient geographical texts
subject: mental modelling
subject: mental maps
subject: ancient geography
subject: Aristophanes
subject: Eratosthenes
subject: Strabo
subject: Ptolemy
subject: 900 Geschichte und Geografie::930 Geschichte des Altertums (bis ca. 499), Archäologie

description: This paper places the concept of ‘common sense geography’ as developed by the members of Topoi research group C-5 within the context of ancient geographical literature. For the first time, a consistent model of arranging and classifying Greek and Roman geographical texts from a historical perspective is presented.
An Overview of Patent Application Data in the Field of Photovoltaics
Creators: name: Visentin, A.
name: Sagol, B.E.
name: Boero, M.
name: Königstein, C.
Publisher: name: WIP
Year: 2016
Subjects: PV Economics, Markets and Policies
PV Global Issues, Policies and Strategies

description: 32nd European Photovoltaic Solar Energy Conference and Exhibition; 3073-3076
description: The present study is aimed at giving an update on patent activities in the photovoltaics (PV) field covering the past 45 years. In this study, the number of patent applications published during this time period, per year and for the whole period, in several of the most relevant solar cell technologies is analysed. Patent filing figures and the origin of patent applications are shown for the different types of solar cells including polymer and organic solar cells, and dye sensitized solar cells.
Autonomy by Drawing: Gianugo Polesello on Route ’66
Creators: name: Corbellini, Giovanni
Publisher: name: FOOTPRINT
Year: 2018

description: This article questions the revival of ‘La Tendenza’ in the recent architectural debate, taking the work of Gianugo Polesello as a privileged vantage point. The Italian architect – along with Aldo Rossi, Giorgio Grassi, Guido Canella and other protagonists of that approach – taught in the Venetian PhD programme attended by the author, who recalls here his first-hand experience. The economic, ecological, and social crisis we are dealing with has generated, in academic discussions, a widespread re-emergence of political engagement, felt as a necessary alternative to the neo-liberal pensée unique that has dominated recent decades. Various important theoretical contributions from mid-1960s, such as the ambiguous mixture of populism and formal research, of radicalism and reactions against modernism, are therefore back in the architectural debate. Among the several approaches produced by that agitated moment, the Italian movement ‘La Tendenza’ contributed to redefine the disciplinary field in terms of language and autonomy, shifting its focus from design to composition and from the transformative attitude of the zeitgeist to a continuity with existing typo-morphological contexts. Gianugo Polesello, a partner in some early projects of Aldo Rossi – main protagonist of that movement – and a member, with Rossi and other young architects, of the journal Casabella’s ‘think tank’, shared that theoretical operation, conducted, however, through a more explicit and precise medium: architectural design or, more precisely, architectural drawing applied to design. His approach provides an interesting vantage, able to shed some light on a period and a generation that, at a closer look, appear less coherent than their latest reconstructions.
description: FOOTPRINT, Issue # 22 | Spring / Summer 2018 | Exploring Architectural Form: A Configurative Triad
Thermalization and pseudolocality in extended quantum systems
Creators: name: Doyon, Benjamin
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mathematical Physics (math-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Recently, it was understood that modified concepts of locality played an important role in the study of extended quantum systems out of equilibrium, in particular in so-called generalized Gibbs ensembles. In this paper, we rigorously study pseudolocal charges and their involvement in time evolutions and in the thermalization process of arbitrary states with strong enough clustering properties. We show that the densities of pseudolocal charges form a Hilbert space, with inner product determined by thermodynamic susceptibilities. Using this, we define the family of pseudolocal states, which are determined by pseudolocal charges. This family includes thermal Gibbs states at high enough temperatures, as well as (a precise definition of) generalized Gibbs ensembles. We prove that the family of pseudolocal states is preserved by finite time evolution, and that, under certain conditions, the stationary state emerging at infinite time is a generalized Gibbs ensemble with respect to the evolution dynamics. If the evolution dynamics does not admit any conserved pseudolocal charges other than the evolution Hamiltonian, we show that any stationary pseudolocal state with respect to this dynamics is a thermal Gibbs state, and that Gibbs thermalization occurs. The framework is that of translation-invariant states on hypercubic quantum lattices of any dimensionality (including quantum chains) and finite-range Hamiltonians, and does not involve integrability.
description: v1: 43 pages. v2: corrections and clarifications, references added, 46 pages. v3: 48 pages, further corrections made, accepted for publication in Commun. Math. Phys
Multi-Segment Photovoltaic Laser Power Converters and Their Electrical Losses
Creators: name: Kimovec, R.
name: Helmers, H.
name: Bett, A.W.
name: Topic, M.
Publisher: name: WIP
Year: 2017
Subjects: New Materials and Concepts for Photovoltaic Devices
Fundamental Studies

description: 33rd European Photovoltaic Solar Energy Conference and Exhibition; 5-10
description: The electrical power losses of small area six-segment monolithic interconnected GaAs laser power
converter are analyzed based on a variety of measurements and an experimentally validated numerical 2.5-dimensional
distributed electrical model. Input parameters for the developed model were extracted from a wide-range of independent
measurements performed on the manufactured devices. The complex geometry of the device is implemented in the
model with digital images of photolithographic masks. Validity of the built model is confirmed by a good agreement
between measured and simulated spatial electroluminescence response and a good agreement between measured and
simulated dark and illuminated J-V curves is observed. It is shown that distributed ohmic losses limit the efficiency of
the studied device above the optimal (Goptimal=13.2 W/cm2) monochromatic irradiance (0=809 nm). At high irradiance
(Ghigh=83.1 W/cm2), the photovoltaic conversion efficiency is decreased by 17%abs., due to combined ohmic losses,
where more than 88%rel. of the losses are caused by Joule heating in the lateral conduction layer (which is specific to
this kind of multi-segment device). Below the optimal irradiance, minority carrier recombination at the perimeter of
the pn-junction is identified as the limiting factor. At Glow=1.8 W/cm2 perimeter recombination causes 5.5%abs. decrease
of the conversion efficiency. Additionally, photo-induced conductivity in the semi-insulating GaAs substrate leads to
a leakage current between adjacent segments which reduces the efficiency for all studied irradiances equally by 1.2%abs.
Approximation Algorithm for Fault-Tolerant Virtual Backbone in Wireless Sensor Networks
Creators: name: Zhou, Jiao
name: Zhang, Zhao
name: Huang, Xiaohui
name: Du, Ding-Zhu
Publisher: name: arXiv
Year: 2016
Subjects: subject: Discrete Mathematics (cs.DM)
subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences
subject: G.2.2
subject: 05C85, 68W25

description: To save energy and alleviate interferences in a wireless sensor network, the usage of virtual backbone was proposed. Because of accidental damages or energy depletion, it is desirable to construct a fault tolerant virtual backbone, which can be modeled as a $k$-connected $m$-fold dominating set (abbreviated as $(k,m)$-CDS) in a graph. A node set $C\subseteq V(G)$ is a $(k,m)$-CDS of graph $G$ if every node in $V(G)\backslash C$ is adjacent with at least $m$ nodes in $C$ and the subgraph of $G$ induced by $C$ is $k$-connected. In this paper, we present an approximation algorithm for the minimum $(3,m)$-CDS problem with $m\geq3$. The performance ratio is at most $γ$, where $γ=α+8+2\ln(2α-6)$ for $α\geq4$ and $γ=3α+2\ln2$ for $α<4$, and $α$ is the performance ratio for the minimum $(2,m)$-CDS problem. Using currently best known value of $α$, the performance ratio is $\lnδ+o(\lnδ)$, where $δ$ is the maximum degree of the graph, which is asymptotically best possible in view of the non-approximability of the problem. This is the first performance-guaranteed algorithm for the minimum $(3,m)$-CDS problem on a general graph. Furthermore, applying our algorithm on a unit disk graph which models a homogeneous wireless sensor network, the performance ratio is less than 27, improving previous ratio 62.3 by a large amount for the $(3,m)$-CDS problem on a unit disk graph.
description: IEEE/ACM Transactions on Networking, 2017
title: Infrastructures, Mobility and Water Management
title: The Iberian Peninsula in the Imperial and Post-Imperial Context
titleType: Subtitle
Creators: name: Baltrusch, Ernst
name: Czeguhn, Ignacio
name: Esders, Stefan
name: Kopp, Hans Gerhard
name: Möller, Cosima
name: Schmidt, Manfred G.
name: Wendt, Christian
Publisher: name: Freie Universität Berlin
Year: 2016
Subjects: subject: Mobility
subject: infrastructure
subject: empire
subject: water-management
subject: Iberian Peninsula
subject: transformation
subject: Roman law
subject: 900 Geschichte und Geografie::930 Geschichte des Altertums (bis ca. 499), Archäologie

description: This paper investigates the way in which technical and normative knowledge relating to infrastructures, mobility and water management, which the Romans began developing in the republican period, was functionalized for the purpose of expanding the empire in the Iberian Peninsula, starting with the establishment of Roman provincial rule and continuing into the Islamic epoch. It also examines how that knowledge was entrenched in the individual Iberian provinces, and adapted to reflect specific local features. In addition to shedding light on how imperial concepts manifested themselves in the appropriation of space in specific contexts, the example of the Iberian Peninsula elucidates both how the knowledge in question was adapted to meet ‘regional-political’ objectives once the imperial frame of reference fell away and how it was ultimately restructured, modified and legitimized to reflect overriding religious considerations. The paper also provides examples indicating the degree to which antique concepts lent themselves to transformation while simultaneously representing both a potential and a challenge for any subsequent rulers.
Application of the QCD light cone sum rule to tetraquarks: the strong vertices $X_bX_bρ$ and $X_cX_cρ$
Creators: name: Agaev, S. S.
name: Azizi, K.
name: Sundu, H.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The full version of QCD light-cone sum rule method is applied to tetraquarks containing a single heavy $b$ or $c$ quark. To this end, investigations of the strong vertices $X_{b}X_{b}ρ$ and $X_{c}X_{c}ρ$ are performed, where $X_b=[su][\bar b\bar d]$ and $X_c=[su][\bar c\bar d]$ are the exotic states built of four quarks of different flavors. The strong coupling constants $G_{X_{b}X_{b}ρ}$ and $G_{X_{c}X_{c}ρ}$ corresponding to these vertices are found using the $ρ$-meson leading and higher-twist distribution amplitudes. In the calculations $X_{b}$ and $X_{c}$ are treated as scalar bound states of a diquark and antidiquark.
description: 10 Pages, 5 Figures and 1 Table
'Des Yeux Qui Ne Voient Pas...': The smartphones
Creators: name: Di Lorenzo, Luca
Publisher: name: FOOTPRINT
Year: 2018

description: Three of the most influential chapters of Le Corbusier’s Vers une Architecture are collected under the common title ‘Des yeux qui ne voient pas…’ (Eyes which do not see…). Liners, airplanes, and automobiles are shown as the expression of the powerful beauty of practical form: honest, simple, functional and technological. These very famous pages remind us that form is not only derived from precise typological choices or from reasoned morphogenetic diagrams, but it could also be a direct expression of the Kunstwollen. What are the paquebots of the twenty-first century? Which buildings embody this new paradigm? This graphic analysis starts from the statement that one of the ‘not seen’ features of this era is the smartphone. The subject of the survey is the first BMW Guggenheim Lab, designed in 2010 by Atelier Bow-Wow. Described by the architects themselves as a ‘travel toolbox’ or ‘pop-up fly loft theatre in the city’, this compact architecture is the incarnation of three interesting formal qualities usually associated with smartphones: the clear division between the hardware and the ergonomic user interface; the possibility to operate different functions (or software) in the same space (or screen); and the real and virtual connection with different urban situations.
description: FOOTPRINT, Issue # 22 | Spring / Summer 2018 | Exploring Architectural Form: A Configurative Triad
A Pratical Analysis of the 58-15 Moroccan Law on Renewable Energy
Creators: name: El Bachtiri, R.
Publisher: name: WIP
Year: 2016
Subjects: PV Economics, Markets and Policies
PV Global Issues, Policies and Strategies

description: 32nd European Photovoltaic Solar Energy Conference and Exhibition; 3044-3047
description: This article analyses the convenience of the 58-15 law on renewable energy in Morocco for free
production of electric power from photovoltaic stands. This law completes the 13-09 law on renewable energy. The
maximum power permitted was and still fixed at 20 kW. The problem is that the 13-09 law required the connection of
electrical generators from renewable to the medium, high or very high voltage on the public grid. We present the case
of PV platform allowing this production with the highest voltage possible. Afterward, we will show some practical
difficulties both technical and economic. The amendment made by the new version (58-15 law) states that the
connection can be on the grid low voltage. But, this possibility is dependent on a regulatory text to expect. What
mean that now (no text yet), there isn’t any possibility to use such connection.
Ordering multiple soft gluon emissions
Creators: name: Ángeles-Martínez, René
name: Forshaw, Jeffrey R.
name: Seymour, Michael H.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present an expression for the QCD amplitude for a general hard scattering process with any number of soft gluon emissions, to one-loop accuracy. The amplitude is written in two different but equivalent ways: as a product of operators ordered in dipole transverse momentum and as a product of loop-expanded currents. We hope that these results will help in the development of an all-orders algorithm for multiple emissions that includes the full colour structure and both the real and imaginary contributions to the amplitude.
description: v4: 3 pages; 1 figure, 4 references and small clarifications added. Version accepted for publication in Physical Review Letters
Neutrino spin oscillations in gravitational fields in higher dimensions
Creators: name: Alavi, S. A.
name: Serish, T. Fallahi.
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Neutrino physics in one of the most active fields of research with important implications for particle physics, cosmology and astrophysics. On the other hand, motivated by some theories including string theory, formulation of physical theories in more than four space-time dimensions has been the subject of increasing attention in recent years. Interaction of neutrinos with gravitational fields is one of the interesting phenomena which can lead to transition between different helicity states (spin oscillations). We study neutrino spin oscillations in Schwarzschild and RN backgrounds in higher dimensional gravitational fields. We calculate the transition probability as a function of time and also study the dependence of the oscillation frequency on the orbital radius. The results help us to better understand the behavior of gravity and neutrinos in higher dimensions.
description: 12 pages. Replaced with the version published in Modern Physics Letters A
From Prigogine to Raychaudhuri
Creators: name: Guo, Minyong
name: Tian, Yu
name: Wu, Xiaoning
name: Zhang, Hongbao
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: It is highlighted by Prigogine that there are two additional universal behaviors associated with the entropy production rate besides the four laws of thermodynamics. One is that the entropy production rate decreases when the system approaches the steady state, and the other is that the entropy production rate reaches its minimal value at the steady state. Motivated by the black hole thermodynamics and AdS/CFT correspondence, we resort to Raychaudhuri equation to prove that these two universal behaviors are also obeyed by the black hole entropy. In particular, our result together with the four laws of black hole thermodynamics further indicates that the holographic gravity should be universal, not restricted only within the context of AdS/CFT correspondence.
description: Refs added, clarifications made, version to appear in CQG
HPGNN: Using Hierarchical Graph Neural Networks for Outdoor Point Cloud Processing
Creators: name: Thieshanthan, Arulmolivarman
name: Niwarthana, Amashi
name: Somarathne, Pamuditha
name: Wickremasinghe, Tharindu
name: Rodrigo, Ranga
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Inspired by recent improvements in point cloud processing for autonomous navigation, we focus on using hierarchical graph neural networks for processing and feature learning over large-scale outdoor LiDAR point clouds. We observe that existing GNN based methods fail to overcome challenges of scale and irregularity of points in outdoor datasets. Addressing the need to preserve structural details while learning over a larger volume efficiently, we propose Hierarchical Point Graph Neural Network (HPGNN). It learns node features at various levels of graph coarseness to extract information. This enables to learn over a large point cloud while retaining fine details that existing point-level graph networks struggle to achieve. Connections between multiple levels enable a point to learn features in multiple scales, in a few iterations. We design HPGNN as a purely GNN-based approach, so that it offers modular expandability as seen with other point-based and Graph network baselines. To illustrate the improved processing capability, we compare previous point based and GNN models for semantic segmentation with our HPGNN, achieving a significant improvement for GNNs (+36.7 mIoU) on the SemanticKITTI dataset.
description: Accepted for ICPR 2022
Period relations for automorphic forms on unitary groups and critical values of $L$-functions
Creators: name: Guerberoff, Lucio
Publisher: name: arXiv
Year: 2015
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11F67 (Primary) 11F70, 11G18, 11R39, 22E55 (Secondary)

description: In this paper we explore some properties of periods attached to automorphic representations of unitary groups over CM fields and the critical values of their $L$-functions. We prove a formula expressing the critical values in the range of absolute convergence in terms of Petersson norms of holomorphic automorphic forms. On the other hand, we express the Deligne period of a related motive as a product of quadratic periods and compare the two expressions by means of Deligne's conjecture.
description: 51 pages; incorporated referee comments
Is the World Heading towards the Post-Paris Agreement Renewable (Solar) Future Quickly Enough?
Creators: name: Lagaaij, A.
Publisher: name: WIP
Year: 2016
Subjects: PV Economics, Markets and Policies
PV Global Issues, Policies and Strategies

description: 32nd European Photovoltaic Solar Energy Conference and Exhibition; 3077-3079
description: It is amazing to see how suddenly solar civilization started unfolding so rapidly after the signing of
Paris Climate Agreement on 12 december 2015. Poised between the demands of quality and quantity, the
photovoltaic industry in 2016 took on its global role. This paper is a thought-exercise in bringing the energy transition
forward to facilitate the needed end to global CO2 emissions.
On Bigness and the Problem of Urban Form
Creators: name: Rabaça, Armando
name: Martins, Carlos Moura
Publisher: name: FOOTPRINT
Year: 2018

description: The term ‘bigness’ refers to large-scale, mixed-use buildings and was introduced into the architectural vocabulary by Rem Koolhaas. Contrary to Koolhaas’s focus on the ‘generic city’ and the Asian context, this essay explores the role that large-scale buildings may play in establishing a dialogue between new areas of urban expansion and the formal and typological characteristics of European cities. By looking at three designs by Jacques Herzog and Pierre de Meuron in the light of the early twentieth-century debate on urban design and the skyscraper in Europe, the problem of bigness will be seen as a continuation of a discussion on urban form and type spanning more than one hundred years. Bigness will thus be seen as a tool capable of reworking and even continuing existing urban formal types, even if devoid of ideological and symbolic meaning.
description: FOOTPRINT, Issue # 22 | Spring / Summer 2018 | Exploring Architectural Form: A Configurative Triad
Unsubsidised PV Markets: How a National Public-Private Financing Platform Could Reduce the Impact from Low Oil Prices
Creators: name: Bieri, M.
name: Baker, R.S.
name: Tay, S.
name: Reindl, T.
Publisher: name: WIP
Year: 2016
Subjects: PV Economics, Markets and Policies
PV Economics and Markets

description: 32nd European Photovoltaic Solar Energy Conference and Exhibition; 3002-3007
description: For the case of Singapore, climate change is an important topic and carbon reduction is high up on the agenda. Besides energy efficiency initiatives, increasing solar photovoltaic (PV) adoption is another crucial driver for a sustainable future. As the Singapore government strives for a level-playing field among all energy players, solar PV is not directly subsidised. Having achieved grid parity in late 2012, the installed capacity has grown more than tenfold over the last five years. However, electricity prices are in a downward spiral, driven by an increasing overcapacity of conventional generation and gas-supply contracts that are pegged directly to oil prices. The economic viability for PV rooftop system investments, especially for liberalised energy intensive consumers, has deteriorated. This work looks into ways on how to use part of Singapore’s large finance and real estate resources to frame national financing schemes in order to offer more favourable financing options. A national property-backed PV financing scheme followed by an on-bill financing scheme are seen as the best possible ways to bridge current difficulties of PV systems to remain competitive. Political backing is seen as the most important driver to facilitate such schemes.
Representing Authority in Ancient Knowledge Texts
Creators: name: Asper, Markus
name: Renger, Almut-Barbara
name: Sala, Tudor
name: Witte, Markus
name: Pilhofer, Philipp
name: Walter, Sarah
name: Kirk, Nalini
Publisher: name: Freie Universität Berlin
Year: 2016
Subjects: subject: personal
subject: apersonal
subject: ancient Mediterranean
subject: imperial China
subject: mathematics
subject: Autorität
subject: authorship
subject: tradition
subject: 900 Geschichte und Geografie::930 Geschichte des Altertums (bis ca. 499), Archäologie

description: In this paper we would like to discuss some questions concerning authority and knowledge with obvious relevance to our research group Personal and apersonal authorization (B-5). After briefly summarizing how the phenomenon of ‘authority’ is viewed in general, this paper takes up the specific case of authority and tradition. We then consider text as a special case of tradition, and finally knowledge texts as a special case of texts. The most significant section of the paper is the second half, where we sketch out two complementary methods of constructing or representing authority in such texts, one personal and one non-personal. Ancient Greek, religious studies, theology, church history, ancient history and Chinese studies are our areas of expertise, so most of the examples we have chosen come from those fields. But our intention is to draw broad conclusions that could also apply to other traditions as well.
Weak lensing by galaxy troughs with modified gravity
Creators: name: Barreira, Alexandre
name: Bose, Sownak
name: Li, Baojiu
name: Llinares, Claudio
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study the imprints that theories of gravity beyond GR can leave on the lensing signal around line of sight directions that are predominantly halo-underdense (called troughs) and halo-overdense. To carry out our investigations, we consider the normal branch of DGP gravity, as well as a phenomenological variant thereof that directly modifies the lensing potential. The predictions of these models are obtained with N-body simulation and ray-tracing methods using the ECOSMOG and Ray-Ramses codes. We analyse the stacked lensing convergence profiles around the underdense and overdense lines of sight, which exhibit, respectively, a suppression and a boost w.r.t. the mean in the field of view. The modifications to gravity in these models strengthen the signal w.r.t. $Λ{\rm CDM}$ in a scale-independent way. We find that the size of this effect is the same for both underdense and overdense lines of sight, which implies that the density field along the overdense directions on the sky is not sufficiently evolved to trigger the suppression effects of the screening mechanism. These results are robust to variations in the minimum halo mass and redshift ranges used to identify the lines of sight, as well as to different line of sight aperture sizes and criteria for their underdensity and overdensity thresholds.
description: 20 pages, 17 figures. v2 matches version published in JCAP
title: Variations on a Theme of Empire
title: Comparing Mediterranean Imperial Systems in the Longue Durée
titleType: Subtitle
Creators: name: Bintliff, John
Publisher: name: Freie Universität Berlin
Year: 2020
Subjects: subject: human ecology
subject: social hierarchy
subject: polis
subject: Mycenaean
subject: classical
subject: Roman Byzantine
subject: Ottoman
subject: 900 Geschichte und Geografie::930 Geschichte des Altertums (bis ca. 499), Archäologie::930 Geschichte des Altertums bis ca. 499, Archäologie

description: Empires require a functional infrastructure and sustaining resources, but there are many ways in which these can be achieved, and they have implications for the stability and persistence of imperial systems. This paper will compare and contrast key aspects of Mediterranean empires. It begins with the territorial states of Mycenaean Greece, which may or may not have formed a loose federal empire, then progresses through the Early Roman Empire to that of Late Roman antiquity, the Byzantine Empire, and ends with the Early then Late Ottoman Empire. Political structure, demography and economy will be given particular attention.
Calling Rowe: After-lives of Formalism in the Digital Age
Creators: name: Giamarelos, Stylianos
Publisher: name: FOOTPRINT
Year: 2018

description: Emmanuel Petit recently invoked the work of Colin Rowe to render a discussion of architectural precedent relevant for the digital age. Questioning Petit’s approach, this article explores the implications latent in this invocation. In so doing, it highlights their misalignments with the current concerns of digital design practitioners. The article thus focuses on the question of a possible after-life of Rowe’s formalism for the digital age. It starts by charting its genealogical development from Rudolf Wittkower’s humanist grids to Peter Eisenman’s ‘post-functionalist’ pursuits of autonomous form and Greg Lynn’s ‘pliant’ geometries. This showcases the dual historical effect of Rowe’s analytical formalism. From the late 1940s to the present, his disciples employed it both as a historiographical model and as a generative mechanism for architectural design. The history of Rowe’s formalism is therefore intertwined with the contemporary concerns of digital design practitioners, including Petit’s question of theorising precedent. The digital design practitioners’ assertions of autonomy are historically rooted in Rowe’s analytical formalism. In the final instance, Rowe’s analysis was carried out from the perspective of modernist humanism, and this historically remained the case in its various versions from Wittkower to Eisenman. Updating Rowe, as Petit suggested, would therefore only perpetuate a modernist outlook in a postmodern age. A formalism for the present cannot ignore the enduring points of the postmodern critique that preceded it. In conclusion, a contemporary variant of formalism needs to address the debates around its possible synthesis with contextualist concerns. To do so, it also needs to engage with the poststructuralist critiques of the intervening decades. Some examples from recent literature exemplify such an approach. They could therefore serve as useful precedents towards an integrated formalism for the present.
description: FOOTPRINT, Issue # 22 | Spring / Summer 2018 | Exploring Architectural Form: A Configurative Triad
Prospects in Solar Water Desalination: Towards Affordable H2O without CO2
Creators: name: Fthenakis, V.
name: Atia, A.A.
name: Bkayrat, R.
name: Ng, K.C.
name: Alghasham, T.
name: Khalid, A.
name: Nagpal, D.
name: Sgouridis, S.
Publisher: name: WIP
Year: 2016
Subjects: PV Economics, Markets and Policies
PV Economics and Markets

description: 32nd European Photovoltaic Solar Energy Conference and Exhibition; 3020-3026
description: This paper presents performance and cost analysis of small- and medium-scale seawater reverse osmosis (RO) desalination plants powered in full or in part by photovoltaic power systems in the Gulf Cooperative Council (GCC) region. Simulations of PV-RO desalination were conducted using HOMER Pro 3.6.1 and an Excel-based, hourly RO model. We describe a) small and medium size stand-alone systems operating 8, 10, 12 or 24 hours/day, which are powered by PV only, or PV and battery storage and diesel generators, and, b) combinations of PV and solar thermal and co-location of PV and conventional power plants. The stand-alone systems operating less than 24 hours included water storage. Our simulations show water production costs in the range of $1.2-$2.65 per m3 of product water for small (i.e., 5m3/day) stand-alone PV-RO systems with PV LCOE values ranging from 12–18 ¢/kWh; water production costs are in the range of $0.9-$2.0/m3 for medium size (e.g., 6500 m3/day) systems with PV LCOE down to 6-8.8 US¢/kWh. Co-locating a 50 MW PV system with an existing power plant in Jordan resulted in LCOE being reduced from 8.8 ¢/kWh to 7.1 ¢/kWh. The potential for improved water production yield and cost savings in hybrid PV-solar thermal is also highlighted.
Thermally-induced qubit coherence in quantum electromechanics
Creators: name: Abari, Najmeh Etehadi
name: Rakhubovsky, Andrey
name: Filip, Radim
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum coherence, the ability of a quantum system to be in a superposition of orthogonal quantum states, is a distinct feature of the quantum mechanics, thus marking a deviation from classical physics. Coherence finds its applications in quantum sensing and metrology, quantum thermodynamics and computation. A particularly interesting is the possibility to observe coherence arising in counter-intuitive way from thermal energy that is without implementation of intricate protocols involving coherent driving sequences. In this manuscript, we investigate quantum coherence emerging in a hybrid system composed of a two-level system (qubit) and a thermal quantum harmonic oscillator (a material mechanical oscillator), inspired by recent experimental progress in fabrication of such systems. We show that quantum coherence is created in such a composite system solely from the interaction of the parts and persists under relevant damping. Implementation of such scheme will demonstrate previously unobserved mechanisms of coherence generation and can be beneficial for hybrid quantum technologies with mechanical oscillators and qubits.
description: 14 pages, 5 + 2 figures
Built Knowledge – Spatial Patterns and Viewsheds of Middle Neolithic Circular Enclosures in the Northern Foreland of the Harz Mountains, Saxony-Anhalt, Germany
Creators: name: Michel, Christina
name: Hoffmann, Susanne M.
name: Schier, Wolfram
Publisher: name: Freie Universität Berlin
Year: 2015
Subjects: subject: Visibility
subject: GIS
subject: Skyline diagram
subject: Kreisgrabenanlage
subject: astronomical and topographical alignments
subject: 900 Geschichte und Geografie::930 Geschichte des Altertums (bis ca. 499), Archäologie::930 Geschichte des Altertums bis ca. 499, Archäologie

description: After a decade of research the functions of circular enclosures of the middle Neolithic are still debated. In a project funded by the German Research Foundation (DFG) two of these roundels were excavated in order to learn more about their structure, history of construction, their function as well as their spatial characteristics. Based on high-resolution digital elevation models, possible orientations towards topographical and astronomical features are systematically investigated using a GIS-based visibility analysis and a self-developed tool in Wolfram Mathematica. In this article preliminary results of two (partially) excavated roundels in the northern Forelands of the Harz Mountains are presented.
The Diagrammatic Inquiry of Architectural Media
Creators: name: Bertram, Peter
Publisher: name: FOOTPRINT
Year: 2018

description: According to the philosopher C.S. Peirce the diagram is a system of interrelated parts that operates in a manner similar to another system of interrelated parts. It is a mental map of relations. It drives an open-ended inquiry on a given problem. In architectural discourse a diagram is often defined as a particular form of drawing. It is a simplified image and/or it uses a notation system. In this context, the latter is termed a digital diagram. However, an architectural medium has material properties that influence both the making and the translation of the drawing. It is both a singular artefact and a set of instructions for actions undertaken in another space than that of the medium. This article introduces the notion of an immanent diagram to discuss how the composition of a drawing is distributed. The proposition is that the architectural diagrammatic inquiry operates in the struggle between digital and analogue diagrams. I develop the argument using a traditional architectural drawing as a starting point. In the last section, I discuss a contemporary computer based design practice in which drawings and prototype modelling constitute a heterogeneous technological environment.
description: FOOTPRINT, Issue # 22 | Spring / Summer 2018 | Exploring Architectural Form: A Configurative Triad
Planck constraints on scalar-tensor cosmology and the variation of the gravitational constant
Creators: name: Ooba, Junpei
name: Ichiki, Kiyotomo
name: Chiba, Takeshi
name: Sugiyama, Naoshi
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Cosmological constraints on the scalar-tensor theory of gravity by analyzing the angular power spectrum data of the cosmic microwave background (CMB) obtained from the Planck 2015 results are presented. We consider the harmonic attractor model, in which the scalar field has a harmonic potential with curvature ($β$) in the Einstein frame and the theory relaxes toward the Einstein gravity with time. Analyzing the {\it TT}, {\it EE}, {\it TE} and lensing CMB data from Planck by the Markov chain Monte Carlo method, we find that the present-day deviation from the Einstein gravity (${α_0}^2$) is constrained as ${α_0}^2<2.5\times10^{-4-4.5β^2}\ (95.45\% {\rm\ C.L.})$ and ${α_0}^2<6.3\times10^{-4-4.5β^2}\ (99.99\%\ {\rm C.L.})$ for $0
description: 7 pages, 10 figures, version to appear in PRD
Reconceptualisation of Architects’ Intentionality in Computational Form Generation: A Tripartite Model
Creators: name: Tüntaş Karaman, Duygu
Publisher: name: FOOTPRINT
Year: 2018

description: This paper attempts to create a theoretical framework to reconceptualise architects’ intentionality in computational form generation. Parallel to the increasing complexity of design problems and the increased realm of architects’ responsibility, the last two decades have shown that a vast amount of information can be managed and operated within the design process by using computational methods and associated technologies. This condition led to an expansion of the dominant mode in form computation that largely relies on data-driven forms as outcomes of pure calculations and rationalistic determinism. As an alternative, this study proposes a tripartite model as a basis to understand and assess design intentionality by unfolding and thereby reflecting on designers’ internalised processes. Initially defined in the field of computation, network and communication sciences for management and organisation of information, the proposed model – composed of centralised, partial and distributed approaches – is operational in responding to different forms and degrees of design intentionality within computational processes in architecture.
description: FOOTPRINT, Issue # 22 | Spring / Summer 2018 | Exploring Architectural Form: A Configurative Triad
A Framework Model for Post-Subsidy PV Market Forecast
Creators: name: El Gammal, A.
name: Gerlach, A.
name: Macé, P.
name: Werner, C.
name: Masson, G.
Publisher: name: WIP
Year: 2016
Subjects: PV Economics, Markets and Policies
PV Economics and Markets

description: 32nd European Photovoltaic Solar Energy Conference and Exhibition; 2994-3001
description: The paper addresses the key question of assessing potential future PV development in every country. Especially after
the phase out or in the absence of any financial policy support, subsidies or political barriers influencing PV
development, a sustainable and thus highly predictable PV development is assumed. The method proposed in this
paper is of major interest to anticipate the potential development of PV in emerging markets where, the absence of
any significant financial support scheme has usually prevented the uptake of policy driven (and non-competitive
based) PV market. Therefore, in most of these markets, PV has been installed solely due to its intrinsic
competitiveness in comparison to other power generation technologies.
The method thus assumes that PV is transitioning towards a post-subsidy era and that the long-term PV development
in any given country will be driven by its true competitiveness only. The paper presents an overview of PV
development scenarios in 21 countries of which 4 highly contrasted examples are analysed in more details and will be
a basis for evaluating a closer analysis of all other PV markets future developments.