cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Intelligent monitoring of the injection moulding process
Creators: name: Vietri, Umberto
Publisher: name: Universita degli studi di Salerno
Year: 2011
Subjects: subject: ING-IND/24 PRINCIPI DI INGEGNERIA CHIMICA
subject: Moulding process

description: 2009-2010
description: The quality requirements of injection-moulded components have become more stringent because of the growing s applications of plastics and increasing customer demands. The quality of the moulded parts depend on the processing conditions and this creates a continuous demand for developing advanced techniques for monitoring and controlling the process The current practice in industry is to adjust the parameters based on the product defects through trial and error, starting from information from the material supplier, mould designer, and, largely, on the basis of the moulding engineer’s (or setup person’s) own experience. Nevertheless, defects can occur in moulded parts due to, for instance, the variation in material properties (particularly when reground or biodegradable resins are used), the change in environmental conditions (e.g., humidity or temperature in the surroundings), and the machine characteristics (particularly those using hydraulic power). In this case, the process conditions have to be readjusted in order to re-establish the part quality targets. To overcome these difficulties, injection moulding quality control has been the subject of many off-line and on -line quality control studies. The purpose is to achieve automatic and adaptive quality control able to guarantee a stable and repeatable process, from the part quality point of view.[edited by Author]
Breakdown of the scaling relation of anomalous Hall effect in Kondo lattice ferromagnet USbTe
Creators: name: Siddiquee, Hasan
name: Broyles, Christopher
name: Liu, Erica Kotta Shouzheng
name: Peng, Shiyu
name: Kong, Tai
name: Kang, Byungkyun
name: Zhu, Qiang
name: Lee, Yongbin
name: Ke, Liqin
name: Weng, Hongming
name: Denlinger, Jonathan D.
name: Wray, L. Andrew
name: Ran, Sheng
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The interaction between strong correlation and Berry curvature is an open territory of in the field of quantum materials. Here we report large anomalous Hall conductivity in a Kondo lattice ferromagnet USbTe which is dominated by intrinsic Berry curvature at low temperatures. However, the Berry curvature induced anomalous Hall effect does not follow the scaling relation derived from Fermi liquid theory. The onset of the Berry curvature contribution coincides with the Kondo coherent temperature. Combined with ARPES measurement and DMFT calculations, this strongly indicates that Berry curvature is hosted by the flat bands induced by Kondo hybridization at the Fermi level. Our results demonstrate that the Kondo coherence of the flat bands has a dramatic influence on the low temperature physical properties associated with the Berry curvature, calling for new theories of scaling relations of anomalous Hall effect to account for the interaction between strong correlation and Berry curvature.
description: Accepted by Nature Communications
Sonnenfleckenzeichnung Nr. 29070.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 23.11.1994, erstellt von Hans Ulrich Keller
Creators: name: Eidgenössische Sternwarte in Zürich (ETH Zürich bzw. vor 1911 Polytechnikum)
Publisher: name: [s.n.]
Year: 1994

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der ehem. Eidgenössischen Sternwarte Zürich. Instrument: Zeiss Coudé-Refraktor (150/2250 mm).
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Zusätzlich notiert: Tabelle mit den statistischen Angaben, für die Werte g, f und mit einer Spalte für A: von blossem Auge sichtbare Flecken, beobachtet mit Hilfe eines korrekt-reduzierenden optischen Filters (naked eye sunspots).
Beobachtungstätigkeit am erwähnten Ort im Auftrag des Schweizerischen Militärdepartements, Bundesamt für Übermittlungstruppen (BAUEM): Zählungen am Fraunhoferschen Normalrefraktor und Zeichnungen am Zeiss-Coudé-Refraktor
Sonnenfleckenzeichnung Nr. 29069.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 21.11.1994, erstellt von Hans Ulrich Keller
Creators: name: Eidgenössische Sternwarte in Zürich (ETH Zürich bzw. vor 1911 Polytechnikum)
Publisher: name: [s.n.]
Year: 1994

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der ehem. Eidgenössischen Sternwarte Zürich. Instrument: Zeiss Coudé-Refraktor (150/2250 mm).
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Zusätzlich notiert: Tabelle mit den statistischen Angaben, für die Werte g, f und mit einer Spalte für A: von blossem Auge sichtbare Flecken, beobachtet mit Hilfe eines korrekt-reduzierenden optischen Filters (naked eye sunspots).
Beobachtungstätigkeit am erwähnten Ort im Auftrag des Schweizerischen Militärdepartements, Bundesamt für Übermittlungstruppen (BAUEM): Zählungen am Fraunhoferschen Normalrefraktor und Zeichnungen am Zeiss-Coudé-Refraktor
Thermal response in driven diffusive systems
Creators: name: Baiesi, Marco
name: Basu, Urna
name: Maes, Christian
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Evaluating the linear response of a driven system to a change in environment temperature(s) is essential for understanding thermal properties of nonequilibrium systems. The system is kept in weak contact with possibly different fast relaxing mechanical, chemical or thermal equilibrium reservoirs. Modifying one of the temperatures creates both entropy fluxes and changes in dynamical activity. That is not unlike mechanical response of nonequilibrium systems but the extra difficulty for perturbation theory via path-integration is that for a Langevin dynamics temperature also affects the noise amplitude and not only the drift part. Using a discrete-time mesh adapted to the numerical integration one avoids that ultraviolet problem and we arrive at a fluctuation expression for its thermal susceptibility. The algorithm appears stable under taking even finer resolution.
description: 10 pages, 3 figures
Sonnenfleckenzeichnung Nr. 28965.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 27.05.1994, erstellt von Hans Ulrich Keller
Creators: name: Eidgenössische Sternwarte in Zürich (ETH Zürich bzw. vor 1911 Polytechnikum)
Publisher: name: [s.n.]
Year: 1994

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der ehem. Eidgenössischen Sternwarte Zürich. Instrument: Zeiss Coudé-Refraktor (150/2250 mm).
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Zusätzlich notiert: Tabelle mit den statistischen Angaben, für die Werte g, f und mit einer Spalte für A: von blossem Auge sichtbare Flecken, beobachtet mit Hilfe eines korrekt-reduzierenden optischen Filters (naked eye sunspots).
Beobachtungstätigkeit am erwähnten Ort im Auftrag des Schweizerischen Militärdepartements, Bundesamt für Übermittlungstruppen (BAUEM): Zählungen am Fraunhoferschen Normalrefraktor und Zeichnungen am Zeiss-Coudé-Refraktor
Bound states in the continuum: localization of Dirac-like fermions
Creators: name: Cortés, N.
name: Chico, Leonor
name: Pacheco, M.
name: Rosales, L.
name: Orellana, P. A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report the formation of bound states in the continuum for Dirac-like fermions in structures composed by a trilayer graphene flake connected to nanoribbon leads. The existence of this kind of localized states can be proved by combining local density of states and electronic conductance calculations. By applying a gate voltage, the bound states couple to the continuum, yielding a maximum in the electronic transmission. This feature can be exploited to identify bound states in the continuum in graphene-based structures.
description: 7 pages, 5 figures
Sonnenfleckenzeichnung Nr. 28947.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 27.04.1994, erstellt von Hans Ulrich Keller
Creators: name: Eidgenössische Sternwarte in Zürich (ETH Zürich bzw. vor 1911 Polytechnikum)
Publisher: name: [s.n.]
Year: 1994

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der ehem. Eidgenössischen Sternwarte Zürich. Instrument: Zeiss Coudé-Refraktor (150/2250 mm).
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Zusätzlich notiert: Tabelle mit den statistischen Angaben, für die Werte g, f und mit einer Spalte für A: von blossem Auge sichtbare Flecken, beobachtet mit Hilfe eines korrekt-reduzierenden optischen Filters (naked eye sunspots).
Beobachtungstätigkeit am erwähnten Ort im Auftrag des Schweizerischen Militärdepartements, Bundesamt für Übermittlungstruppen (BAUEM): Zählungen am Fraunhoferschen Normalrefraktor und Zeichnungen am Zeiss-Coudé-Refraktor
Optimal vaccination in a stochastic epidemic model of two non-interacting populations
Creators: name: Yuan, Edwin C.
name: Alderson, David L.
name: Stromberg, Sean
name: Carlson, Jean M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: Developing robust, quantitative methods to optimize resource allocations in response to epidemics has the potential to save lives and minimize health care costs. In this paper, we develop and apply a computationally efficient algorithm that enables us to calculate the complete probability distribution for the final epidemic size in a stochastic Susceptible-Infected-Recovered (SIR) model. Based on these results, we determine the optimal allocations of a limited quantity of vaccine between two non-interacting populations. We compare the stochastic solution to results obtained for the traditional, deterministic SIR model. For intermediate quantities of vaccine, the deterministic model is a poor estimate of the optimal strategy for the more realistic, stochastic case.
description: 21 pages, 7 figures
Sonnenfleckenzeichnung Nr. 28884.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 15.01.1994, erstellt von Hans Ulrich Keller
Creators: name: Eidgenössische Sternwarte in Zürich (ETH Zürich bzw. vor 1911 Polytechnikum)
Publisher: name: [s.n.]
Year: 1994

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der ehem. Eidgenössischen Sternwarte Zürich. Instrument: Zeiss Coudé-Refraktor (150/2250 mm).
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Zusätzlich notiert: Tabelle mit den statistischen Angaben, für die Werte g, f und mit einer Spalte für A: von blossem Auge sichtbare Flecken, beobachtet mit Hilfe eines korrekt-reduzierenden optischen Filters (naked eye sunspots).
Beobachtungstätigkeit am erwähnten Ort im Auftrag des Schweizerischen Militärdepartements, Bundesamt für Übermittlungstruppen (BAUEM): Zählungen am Fraunhoferschen Normalrefraktor und Zeichnungen am Zeiss-Coudé-Refraktor
RFID sensors to measure the energy consumption of warm mix and recycled asphalt
Creators: name: Miller, Seirgei
name: Bijleveld, Frank
name: Erkens, Sandra
name: Anupam, Kumar
Publisher: name: SPOOL
Year: 2015

description: Governments, regulatory bodies and road authorities all push for and promote sustainability. Contractors respond with strategies to reduce their carbon footprints. Besides optimising their asphalt production and logistics processes, companies are investing in the development of low energy asphalt mixes. Warm Mix Asphalt (WMA) is such an asphalt mixture produced at lower temperatures, thereby requiring less energy. It has recently become very popular in the Netherlands with various types of WMA products being developed by construction companies. In essence, the asphalt mix is modified to reduce the viscosity and the mixture is therefore more flexible at lower temperatures enabling more time available for a very important part of the construction process viz. COMPACTION. While essential research effort has been put into developing techniques for adjudicating WMA, optimising their composition and rationalising the design; less effort has been put into the operational handling and consequences regarding energy consumption and durability. In short, little is known about actual energy consumption during the asphalt compaction process. By placing RFID sensors into the asphalt mixture, temperatures and pressures can be measured during laboratory testing and construction, but also during usage and maintenance of the road where additional RFID sensors can be added to measure weather conditions and other long-term parameters.
description: SPOOL, Vol. 2 No. 2: Energy Innovation #3
Parity-dependent unidirectional and chiral photon transfer in reversed-dissipation cavity optomechanics
Creators: name: Chen, Zhen
name: Liu, Qichun
name: Zhou, Jingwei
name: Zhao, Peng
name: Yu, Haifeng
name: Li, Tiefu
name: Liu, Yulong
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Nonreciprocal elements, such as isolators and circulators, play an important role in classical and quantum information processing. Recently, strong nonreciprocal effects have been experimentally demonstrated in cavity optomechanical systems. In these approaches, the bandwidth of the nonreciprocal photon transmission is limited by the mechanical resonator linewidth, which is arguably much smaller than the linewidths of the cavity modes in most electromechanical or optomechanical devices. In this work, we demonstrate broadband nonreciprocal photon transmission in the \emph{reversed-dissipation} regime, where the mechanical mode with a large decay rate can be adiabatically eliminated while mediating anti-$\mathcal{PT}$-symmetric dissipative coupling with two kinds of phase factors. Adjusting the relative phases allows the observation of \emph{periodic} Riemann-sheet structures with distributed exceptional points (Eps). At the Eps, destructive quantum interference breaks both the $\mathcal{T}$- and $\mathcal{P}$-inversion symmetry, resulting in unidirectional and chiral photon transmissions. In the reversed-dissipation regime, the nonreciprocal bandwidth is no longer limited by the mechanical mode linewidth but is improved to the linewidth of the cavity resonance. Furthermore, we find that the direction of the unidirectional and chiral energy transfer could be reversed by changing the \emph{parity} of the Eps. Extending non-Hermitian couplings to a three-cavity model, the broken anti-$\mathcal{PT}$-symmetry allows us to observe high-order Eps, at which a parity-dependent chiral circulator is demonstrated. The driving-phase controlled periodical Riemann sheets allow observation of the parity-dependent unidirectional and chiral energy transfer and thus provide a useful cell for building up nonreciprocal array and realizing topological, e.g., isolators, circulators, or amplifiers.
description: 11 pages, 9 figures,
Saving Energy Battle (sEB)
Creators: name: Pereira Roders, Ana
name: Roos, Job
Publisher: name: SPOOL
Year: 2015

description: 3TU Saving Energy Battle (sEB) aimed at charting post-war neighbourhoods in energy saving rankings, and take a first step in a global monitoring tool on resource efficiency. We also tested the new process of energy performance certification, in three post-war neighbourhoods of major Dutch cities: Westelijke Tuinsteden, Amsterdam; Ommoord, Rotterdam; and Mariahoeve, Den Haag. This monitoring tool and online short courses were developed online. Further, we organized an live event on 28 February 2015, where students and volunteers teamed up to assist building owners with the upload of requested information and photos. The sEB event was a great experience! Den Haag won first place (127), followed by Amsterdam (118) and Rotterdam (62)! All building owners who succeeded in uploading all needed information have obtained a definitive Energy label issued by Atriensis, free of charge. The research team has their data, to answer their research questions. Public officers and owners can inform transformation decisions on their energy savings. Ministries can compare and determine the contribution of measures as the energy performance certification to boost energy efficiency.
description: SPOOL, Vol. 2 No. 2: Energy Innovation #3
Sonnenfleckenzeichnung Nr. 28892.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 28.01.1994, erstellt von Hans Ulrich Keller
Creators: name: Eidgenössische Sternwarte in Zürich (ETH Zürich bzw. vor 1911 Polytechnikum)
Publisher: name: [s.n.]
Year: 1994

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der ehem. Eidgenössischen Sternwarte Zürich. Instrument: Zeiss Coudé-Refraktor (150/2250 mm).
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Zusätzlich notiert: Tabelle mit den statistischen Angaben, für die Werte g, f und mit einer Spalte für A: von blossem Auge sichtbare Flecken, beobachtet mit Hilfe eines korrekt-reduzierenden optischen Filters (naked eye sunspots).
Beobachtungstätigkeit am erwähnten Ort im Auftrag des Schweizerischen Militärdepartements, Bundesamt für Übermittlungstruppen (BAUEM): Zählungen am Fraunhoferschen Normalrefraktor und Zeichnungen am Zeiss-Coudé-Refraktor
Sonnenfleckenzeichnung Nr. 28953.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 04.05.1994, erstellt von Hans Ulrich Keller
Creators: name: Eidgenössische Sternwarte in Zürich (ETH Zürich bzw. vor 1911 Polytechnikum)
Publisher: name: [s.n.]
Year: 1994

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der ehem. Eidgenössischen Sternwarte Zürich. Instrument: Zeiss Coudé-Refraktor (150/2250 mm).
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Zusätzlich notiert: Tabelle mit den statistischen Angaben, für die Werte g, f und mit einer Spalte für A: von blossem Auge sichtbare Flecken, beobachtet mit Hilfe eines korrekt-reduzierenden optischen Filters (naked eye sunspots).
Beobachtungstätigkeit am erwähnten Ort im Auftrag des Schweizerischen Militärdepartements, Bundesamt für Übermittlungstruppen (BAUEM): Zählungen am Fraunhoferschen Normalrefraktor und Zeichnungen am Zeiss-Coudé-Refraktor
Evidence for anisotropic dielectric properties of monoclinic hafnia using high-resolution TEM valence electron energy-loss spectroscopy and ab initio time-dependent density-functional theory
Creators: name: Guedj, Cyril
name: Hung, Linda
name: Zobelli, Alberto
name: Blaise, Philippe
name: Sottile, Francesco
name: Olevano, Valerio
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The effect of nanocrystal orientation on the energy loss spectra of monoclinic hafnia (m-HfO$_2$) is measured by high resolution transmission electron microscopy (HRTEM) and valence energy loss spectroscopy (VEELS) on high quality samples. For the same momentum-transfer directions, the dielectric properties are also calculated ab initio by time-dependent density-functional theory (TDDFT). Experiments and simulations evidence anisotropy in the dielectric properties of m-HfO$_2$, most notably with the direction-dependent oscillator strength of the main bulk plasmon. The anisotropic nature of m-HfO$_2$ may contribute to the differences among VEELS spectra reported in literature. The good agreement between the complex dielectric permittivity extracted from VEELS with nanometer spatial resolution, TDDFT modeling, and past literature demonstrates that the present HRTEM-VEELS device-oriented methodology is a possible solution to the difficult nanocharacterization challenges given in the International Technology Roadmap for Semiconductors.
description: 5 pages, 3 figures
The environments of Type Ia supernovae with different relative equivalent width of Si II feature in their spectra
Creators: name: Meng, Xiang-Cun
name: Zhang, Ju-Jia
name: Zhao, Xu-Lin
name: Li, Li-Ping
name: Wang, Xiao-Feng
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Although type Ia supernovae are so important in many astrophysical field, e.g. in cosmology, their explosion mechanism and progenitor system are still unclear. In physics, the relative equivalent width (REW) of the Si II 635.5 nm absorption feature reflects the velocity interval of silicon in the supernova ejecta and then may provide constraints on the explosion mechanism of SNe Ia. In this paper, we divide the SNe Ia into broad line (BL) and normal line (NL) subsamples based on their REW of Si II 635.5 nm absorption lines around maximum light, and find that the BL SNe Ia have a dimmer mean brightness than NL ones, which possibly results from their different metallicities. However, based on the pixel statistics study on the environments of two subsamples, we do not find any significant potential difference on the environments between BL and NL SNe Ia, which implies that the explosion mechanism of SNe Ia could be independent of their progenitor populations.
description: 17 pages, 13 figures, accepted for publication in ApJ
Leafroof
Creators: name: Rosemann, Alexander
name: Doudart De La Grée, Guillaume
name: Papadopoulos, Argyrios
name: Debije, Michael
name: Cox, Mark
name: Reinders, Angèle
name: Van Zeeland, Frans
Publisher: name: SPOOL
Year: 2015

description: Conventional solar energy collection technologies have a lot of limitations with respect to their applicability in the urban environment. The PV cells of the buildings need to be oriented towards the South at a specific angle causing restrictions on urban planning. Moreover, the aesthetics of PV cells are not well suited for building design, creating a generally dull and industrial look in urban environment. The 3TU Lighthouse Leafroof project focuses on creating a roof design, inspired by the natural shape of leaves. By incorporating the Luminescent Solar Concentrator (LSC) technology the system can collect and “trap” solar irradiation and concentrate it to a much smaller area of PV cells located at the centre or the edge of the leaf tiles. This approach allows more freedom of building orientation and roof inclination compared to the conventional PV system. Subsequently, it enhances freedom in urban planning. The goal of this project is to create a “leaf roof” prototype and form a feasible solar energy collection technology that is competitive to conventional systems.
description: SPOOL, Vol. 2 No. 2: Energy Innovation #3
Wajah Islam di dua zaman (era Orde Baru dan era Reformasi); sebuah perbandingan fiksi Pengabdi Setan tahun 1980 dan tahun 2017
Creators: name: Makmur, ZUlkifli
Publisher: name: Zenodo
Year: 2020
Subjects: Islam
comparative literature
Structuralism
Diachronic

description: Two Faces of Islam in tow regimes of Indonesia. It was presented at the International Conference on Social and Humanity Approach to Islamic Studies
Throw in the i-Drone
Creators: name: Entrop, Bram
name: Vasenev, Alexandr
name: Bokel, Regina
name: Van Ham, Eric
name: Mutsaards, Sander
Publisher: name: SPOOL
Year: 2015

description: Although many consider drones to be toys, multiple industries, such as the agriculture and mining industry, already know what advantages professional Unmanned Aerial Vehicles (UAVs) can offer. However, many companies in the construction industry do not seem to be familiar yet with the possible advantages of UAVs for their projects. In our 3TU Lighthouse project “Throw in the I-drone” we, the University of Twente, Delft University of Technology, and BeemFlights, would like to make the construction industry aware of the possibilities UAVs have by demonstrating possible usages, by providing a protocol on how to use them and by simplifying the interpretation of data collected.
description: SPOOL, Vol. 2 No. 2: Energy Innovation #3
Sonnenfleckenzeichnung Nr. 29080.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 12.12.1994, erstellt von Hans Ulrich Keller.
Zusätzlich ist vermerkt: Beobachtung unvollständig (nicht abgeschlossen)
Creators: name: Eidgenössische Sternwarte in Zürich (ETH Zürich bzw. vor 1911 Polytechnikum)
Publisher: name: [s.n.]
Year: 1994

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der ehem. Eidgenössischen Sternwarte Zürich. Instrument: Zeiss Coudé-Refraktor (150/2250 mm).
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen.
Beobachtungstätigkeit am erwähnten Ort im Auftrag des Schweizerischen Militärdepartements, Bundesamt für Übermittlungstruppen (BAUEM): Zählungen am Fraunhoferschen Normalrefraktor und Zeichnungen am Zeiss-Coudé-Refraktor
Strategic public management for SME competitiveness in processes of internationalisation of the italian economy
Creators: name: Citarella, Giorgia
Publisher: name: Universita degli studi di Salerno
Year: 2019
Subjects: subject: SECS-P/08 ECONOMIA E GESTIONE DELLE IMPRESE
subject: Sme
subject: Public management
subject: Italian economy

description: 2016 - 2017
description: Per il raggiungimento degli obiettivi inerenti alla Tesi di Dottorato di ricerca si è ritenuto opportuno, nella PARTE PRIMA, esaminare gli sviluppi dell’internazionalizzazione italiana, con un focus sulla competizione nei mercati esteri e un altro sulla relazione tra PMI e l’orizzonte europeo. Dopo una sintesi delle recenti dinamiche economiche globali, è emerso che se il processo di internazionalizzazione, fenomeno di natura composita, ha consentito alle PMI di investire, con il preciso obiettivo di conquistare progressivamente quote di mercato, la delocalizzazione ha comportato il trasferimento delle unità produttive a contenuto valore aggiunto dal proprio mercato di riferimento verso quelli emergenti, caratterizzati da bassi costi dei fattori della produzione. Ma gli effetti macroeconomici della globalizzazione sono stati ancora più evidenti nella destrutturazione del modo di organizzare la produzione, inducendo i Governi ad attuare politiche di non intervento, avvantaggiando l’organizzazione delle attività e amplificando la delocalizzazione e la mobilità degli investimenti. .. [a cura dell'Autore]
description: With respect to the achievement of the research goals inherent to the Doctoral Thesis, it was considered opportune in PART ONE to examine developments in processes of internationalisation in Italy, with a focus on competitiveness in foreign markets as well as the relations underpinning SMEs and the European scenario. Starting with a brief summary of recent trends in the global economy, it emerged that the complex process of internationalisation has afforded SMEs the opportunity to invest in foreign markets, penetrate the same and gradually acquire ever more relevant market share. In this context, delocalisation, i.e. firms transferring productive units to emerging countries characterised by low production costs, has enabled firms to enhance their own markets of reference with added value. The macroeconomic outcomes of globalisation were found to be even more evident in the destructuring processes in terms of organising production, prompting Governments to put in place non interventist policies in favour of productive organisation, extending delocalisation and mobility of investments. .. [edited by Author]
Learning form the Oil Revolution: understanding the past
Creators: name: Hein, Carola
name: Colenbrander, Bernard
Publisher: name: SPOOL
Year: 2015

description: This project visualizes the history and current presence of oil in our everyday surroundings in order to facilitate long-term urban sustainability and energy innovation. Designers and citizens around the world want buildings and cities to be more sustainable and ecological. While their initiatives to reduce energy use are relevant, they often concentrate on individual structures rather than larger global flows, and on technological approaches disconnected from history, society, and culture. They fail to build a new ecological mind-set, a widespread popular culture of sustainability. An older culture already characterizes our cities: petroleum has shaped our modern world. To make a new world, we must first understand the pervasiveness of petroleum; how its production, consumption, and physical and financial flows have shaped cities and rural landscapes such as the Rotterdam/Antwerp area; and how oil companies, governments, and citizens co-constructed an oil-based modern culture over the last 150 years. This project allows practitioners of the built environment and the general public to map how the petroleum revolution has driven architectural and urban design and how it has shaped both our behavior in and our perception of our cities. We seek to increase popular awareness as a foundation to develop new sustainable solutions.
description: SPOOL, Vol. 2 No. 2: Energy Innovation #3
Electrostatic Plasma wave excitations at the interplanetary shocks
Creators: name: Singh, Manpreet
name: Fraschetti, Federico
name: Giacalone, Joe
Publisher: name: arXiv
Year: 2022
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Over the last few decades, different types of plasma waves (e.g., the ion acoustic waves (IAWs), electrostatic solitary waves (ESWs), upper/lower hybrid waves, the Langmuir waves etc.) have been observed in the upstream, downstream and ramp regions of the collisionless interplanetary (IP) shocks. These waves appear as short duration (only a few milliseconds at 1 au) electric field signatures in the in-situ measurements, with typical frequencies $\sim1-10$ kHz. A number of IAW features at the IP shocks seem to be unexplained by kinetic models and requires a new modeling effort. Thus, this paper is dedicated to bridge this gap. In this paper, we model the linear IAWs inside the shock ramp, by devising a novel linearization method of the two-fluid magnetohydrodynamic equations with spatially dependent shock parameters. It is found that, for parallel propagating waves, the linear dispersion relation leads to a finite growth rate dependent on the the shock density compression ratio, as Wind data suggest. Further analysis reveals that the wave frequency grows towards the downstream within the shock ramp, and the wave growth rate is independent of the electron-to-ion temperature ratio, as Magnetospheric Multiscale (MMS) in-situ measurements suggest, and uniform within the shock ramp. Thus, this study help understand the characteristics of the IAWs at the collisionless IP shocks.
description: 16 pages, 4 figures, Accepted for publication in ApJ
A living lab
Creators: name: Papadopoulos, Argyrios
Publisher: name: SPOOL
Year: 2015

description: This project is focused on providing movable-temporary sustainable housing at derelict locations in cities, for young people / graduates / singles / expats / professionals in the European market. The goal is to act as the missing link between innovative small and medium enterprises in the sustainability and energy efficient sector (SME’s) and their target audiences i.e. residences. It is a new housing concept that provides residential solutions and living lab facilities for innovative energy technologies. It is a solid quality solution at affordable rental price, at central locations inside cities providing independent living. At the same time, it provides a low cost living lab facility for field testing, linking to market and showcasing to innovative companies which want to “market test” their products and produce performance data. The ultimate goal is to influence user behavior via water, waste and energy autarchic community, in different levels, than later on the same principles can be applied in other residential, commercial or industrial district arrangement.
description: SPOOL, Vol. 2 No. 1: Energy Innovation #2
Comparison of inversion codes for polarized line formation in MHD simulations. I. Milne-Eddington codes
Creators: name: Borrero, J. M.
name: Lites, B. W.
name: Lagg, A.
name: Rezaei, R.
name: Rempel, M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Milne-Eddington (M-E) inversion codes for the radiative transfer equation are the most widely used tools to infer the magnetic field from observations of the polarization signals in photospheric and chromospheric spectral lines. Unfortunately, a comprehensive comparison between the different M-E codes available to the solar physics community is still missing, and so is a physical interpretation of their inferences. In this contribution we offer a comparison between three of those codes (VFISV, ASP/HAO, and HeLIx$^+$). These codes are used to invert synthetic Stokes profiles that were previously obtained from realistic non-grey three-dimensional magnetohydrodynamical (3D MHD) simulations. The results of the inversion are compared with each other and with those from the MHD simulations. In the first case, the M-E codes retrieve values for the magnetic field strength, inclination and line-of-sight velocity that agree with each other within $σ_B \leq 35$ (Gauss), $σ_γ\leq 1.2°$, and $σ_{\rm v} \leq 10$ ms$^{-1}$, respectively. Additionally, M-E inversion codes agree with the numerical simulations, when compared at a fixed optical depth, within $σ_B \leq 130$ (Gauss), $σ_γ\leq 5°$, and $σ_{\rm v} \leq 320$ ms$^{-1}$. Finally, we show that employing generalized response functions to determine the height at which M-E codes measure physical parameters is more meaningful than comparing at a fixed geometrical height or optical depth. In this case the differences between M-E inferences and the 3D MHD simulations decrease to $σ_B \leq 90$ (Gauss), $σ_γ\leq 3°$, and $σ_{\rm v} \leq 90$ ms$^{-1}$.
description: Accepted for publication in Astronomy & Astrophysics (14 pages; 7 figures)
The Russian connection - interpretation of selected music and the performing qualities of the players
Creators: name: Atlas Lev
Publisher: name: Южно-Российский музыкальный альманах
Year: 2018

description: In the course of this research the question of 'Russianness' in relation to both the music selected and the performing qualities of players who would be taking part in the project has continually arisen. In the presented article the author will try to give a very brief summary of some of the opinions on this subject from both Western and Russian musicologists (this summary is selective only and is not intended to be exhaustive or comprehensive). After that author addresses the question of 'Russianness' in terms of technique and interpretation rather than through vague or subjective concepts. Interpretation is discussed in terms of general meaning and in the context of this research. Practical aspects of applicature and bowings analysed in preparation for performance and recordings, importance of the informative approach to this characteristics is also discussed. The end result of above mentioned application is presented and considered.
Sonnenfleckenzeichnung Nr. 28908.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 02.03.1994, erstellt von Hans Ulrich Keller
Creators: name: Eidgenössische Sternwarte in Zürich (ETH Zürich bzw. vor 1911 Polytechnikum)
Publisher: name: [s.n.]
Year: 1994

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der ehem. Eidgenössischen Sternwarte Zürich. Instrument: Zeiss Coudé-Refraktor (150/2250 mm).
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Zusätzlich notiert: Tabelle mit den statistischen Angaben, für die Werte g, f und mit einer Spalte für A: von blossem Auge sichtbare Flecken, beobachtet mit Hilfe eines korrekt-reduzierenden optischen Filters (naked eye sunspots).
Beobachtungstätigkeit am erwähnten Ort im Auftrag des Schweizerischen Militärdepartements, Bundesamt für Übermittlungstruppen (BAUEM): Zählungen am Fraunhoferschen Normalrefraktor und Zeichnungen am Zeiss-Coudé-Refraktor
A ÉTICA E O PLÁGIO NA PESQUISA CIENTÍFICA
Creators: name: Raphael de Andrade Ribeiro
Publisher: name: Zenodo
Year: 2023
Subjects: Plágio Acadêmico
Ética em Pesquisas
Boas Condutas Acadêmicas

description: Material Instrucional elaborado pelo autor, com a finalidade de disseminar o conhecimento sobre "A ÉTICA E O PLÁGIO NA PESQUISA CIENTÍFICA". 
O material instrucional é: "todo aquele elaborado com o objetivo de oferecer suporte a realização de atividades de caráter educativo e/ou de formação. O objetivo e formato desse tipo de material vão variar conforme os fins nos quais ele será utilizado" (SANTOS, 2018, p. 63).
Referência: SANTOS, Izabel Lima dos. Elaborando material instrucional em bibliotecas universitárias: uma proposta multidisciplinar. Páginas A&B, Porto, 3. série, n. 10, p. 60-70, 2018. Disponível em: https://doi.org/10.21747/21836671/pag10a5. Acesso em: 16 set. 2023.
description: Licença Pública Creative Commons Atribuição 4.0 Internacional
Sonnenfleckenzeichnung Nr. 28887.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 20.01.1994, erstellt von Hans Ulrich Keller
Creators: name: Eidgenössische Sternwarte in Zürich (ETH Zürich bzw. vor 1911 Polytechnikum)
Publisher: name: [s.n.]
Year: 1994

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der ehem. Eidgenössischen Sternwarte Zürich. Instrument: Zeiss Coudé-Refraktor (150/2250 mm).
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Zusätzlich notiert: Tabelle mit den statistischen Angaben, für die Werte g, f und mit einer Spalte für A: von blossem Auge sichtbare Flecken, beobachtet mit Hilfe eines korrekt-reduzierenden optischen Filters (naked eye sunspots).
Beobachtungstätigkeit am erwähnten Ort im Auftrag des Schweizerischen Militärdepartements, Bundesamt für Übermittlungstruppen (BAUEM): Zählungen am Fraunhoferschen Normalrefraktor und Zeichnungen am Zeiss-Coudé-Refraktor
Sonnenfleckenzeichnung Nr. 28956.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 07.05.1994, erstellt von Hans Ulrich Keller
Creators: name: Eidgenössische Sternwarte in Zürich (ETH Zürich bzw. vor 1911 Polytechnikum)
Publisher: name: [s.n.]
Year: 1994

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der ehem. Eidgenössischen Sternwarte Zürich. Instrument: Zeiss Coudé-Refraktor (150/2250 mm).
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Zusätzlich notiert: Tabelle mit den statistischen Angaben, für die Werte g, f und mit einer Spalte für A: von blossem Auge sichtbare Flecken, beobachtet mit Hilfe eines korrekt-reduzierenden optischen Filters (naked eye sunspots).
Beobachtungstätigkeit am erwähnten Ort im Auftrag des Schweizerischen Militärdepartements, Bundesamt für Übermittlungstruppen (BAUEM): Zählungen am Fraunhoferschen Normalrefraktor und Zeichnungen am Zeiss-Coudé-Refraktor
A sustainable life-cycle method
Creators: name: Dugarte, Diruji
Publisher: name: SPOOL
Year: 2015

description: The need for innovative and cost effective approaches for infrastructure maintenance has never been more crucial. In fact, this has been a popular topic in technical reports like the McGraw Hill Construction, the Dutch Cobouw construction magazine and the new multidisciplinary journal “Infrastructure Asset Management” by the Institution of Civil Engineers. The financial status of Industrial Parks (IP) and Business Parks (BP) in the Netherlands, as well as in the rest of the world, has been greatly influenced by the 2007-2008 financial crisis. As a consequence, several IPs and BPs have suffered from infrastructural deterioration that needs to be revitalized. Therefore, one of the priorities facing municipalities nowadays is stimulating companies to invest and redefine such areas with the goal of improving its economic output and optimize the expenditure on its maintenance costs. The different stakeholders involved in the life-cycle management of these parks make strategic decisions based on data that has been gathered over time by its users, either private or public. However, gathering data is becoming more and more complex with time. Infrastructures in these parks are increasingly demanding custom supply of services by the private industry to cope with their technical operations. As a consequence, the level of detail of the assets information is very high. Hence, the digital collaboration and interoperability has become almost mandatory for enabling proper management in construction areas. Interoperability can be described as the ability of making systems and organization work together.
description: SPOOL, Vol. 2 No. 1: Energy Innovation #2
Very low-luminosity Class I/Flat outflow sources in sigma Orionis
Creators: name: Riaz, B.
name: Thompson, M. A.
name: Whelan, E. T.
name: Lodieu, N.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present an optical through sub-millimetre multi-wavelength study of two very low-luminosity Class I/Flat systems, Mayrit 1701117 and Mayrit 1082188, in the sigma Orionis cluster. We performed moderate resolution (R ~ 1000) optical (~0.4-0.9mu) spectroscopy with the TWIN spectrograph at the Calar Alto 3.5-m telescope. The spectra for both sources show prominent emission in accretion- and outflow-associated lines. The mean accretion rate measured from multiple line diagnostics is 6.4x10^{-10} Msun/yr for Mayrit 1701117, and 2.5x10^{-10} Msun/yr for Mayrit 1082188. The outflow mass loss rates for the two systems are similar and estimated to be ~1x10^{-9} Msun/yr. The activity rates are within the range observed for low-mass Class I protostars. We obtained sub-millimetre continuum observations with the Submillimetre Common-User Bolometer Array (SCUBA-2) bolometer at the James Clerk Maxwell Telescope. Both objects are detected at a >5-sigma level in the SCUBA-2 850mu band. The bolometric luminosity of the targets as measured from the observed spectral energy distribution over ~0.8-850mu is 0.18+/-0.04 Lsun for Mayrit 1701117, and 0.16+/-0.03 Lsun for Mayrit 1082188, and is in the very low-mass range. The total dust+gas mass derived from sub-millimetre fluxes is ~36 M_Jup and ~22 M_Jup for Mayrit 1701117 and Mayrit 1082188, respectively. There is the possibility that some of the envelope material might be dissipated by the strong outflows driven by these sources, resulting in a final mass of the system close to or below the sub-stellar limit.
description: Accepted in MNRAS
Mean squares of quadratic twists of the Möbius function
Creators: name: Gao, Peng
name: Zhao, Liangyi
Publisher: name: arXiv
Year: 2022
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11N37, 11L05, 11L40

description: In this paper, we evaluate asymptotically the sum \[ \sum_{d \leq X} \left( \sum_{n \leq Y} μ(n)\leg {8d}{n} \right)^2, \] where $\leg {8d}{n}$ is the Kronecker symbol and $d$ runs over positive, odd, square-free integers.
description: 8 pages
Healthy learning environments
Creators: name: Villegas Martinez, Stephanie
Publisher: name: SPOOL
Year: 2015

description: A good school environment is paramount to the performance and health of the pupils and teachers. However, the quality of school buildings in the Netherlands is in general not so good, with 80% of them not complying with good practices for the indoor environment, while having high energy costs. When tackling these issues, School Boards around the country have two options: building new facilities, or upgrading the existing ones. Although they usually prefer new buildings, municipalities around the country are promoting the alternative. This presents opportunities for the sustainable renovation of potentially thousands of buildings, to make them not only energy efficient, but with a high quality indoor environment as well; Energy efficient schools with good indoor environment are at the heart of the project “Developing a model for the balance of energy use and indoor environment quality in school buildings”.
description: SPOOL, Vol. 2 No. 1: Energy Innovation #2
Geometric information provider platform
Creators: name: Yousefzadeh, Meisam
Publisher: name: SPOOL
Year: 2015

description: Renovation of existing buildings is known as an essential stage in reduction of the energy loss. Considerable part of renovation process depends on geometric reconstruction of building based on semantic parameters. Following many research projects which were focused on parameterizing the energy usage, various energy modelling methods were developed during the last decade. On the other hand, by developing accurate measuring tools such as laser scanners, the interests of having accurate 3D building models are rapidly growing. But the automation of 3D building generation from laser point cloud or detection of specific objects in that is still a challenge. The goal is designing a platform through which required geometric information can be efficiently produced to support energy simulation software. Developing a reliable procedure which extracts required information from measured data and delivers them to a standard energy modelling system is the main purpose of the project.
description: SPOOL, Vol. 2 No. 1: Energy Innovation #2
Sonnenfleckenzeichnung Nr. 29077.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 06.12.1994, erstellt von Hans Ulrich Keller
Creators: name: Eidgenössische Sternwarte in Zürich (ETH Zürich bzw. vor 1911 Polytechnikum)
Publisher: name: [s.n.]
Year: 1994

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der ehem. Eidgenössischen Sternwarte Zürich. Instrument: Zeiss Coudé-Refraktor (150/2250 mm).
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Zusätzlich notiert: Tabelle mit den statistischen Angaben, für die Werte g, f und mit einer Spalte für A: von blossem Auge sichtbare Flecken, beobachtet mit Hilfe eines korrekt-reduzierenden optischen Filters (naked eye sunspots).
Beobachtungstätigkeit am erwähnten Ort im Auftrag des Schweizerischen Militärdepartements, Bundesamt für Übermittlungstruppen (BAUEM): Zählungen am Fraunhoferschen Normalrefraktor und Zeichnungen am Zeiss-Coudé-Refraktor