cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Limitations of P Gettering During Shallow Emitter Formation
Creators: name: Stensrud Marstein, E.S.
name: Mayandi, J.
name: Syre Wiig, M.
name: Olaisen, B.R.
name: Vines, L.
name: Holt, A.
Publisher: name: WIP
Year: 2011
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Silicon Solar Cell Improvements

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 1248-1251
description: The electronic quality of a Si wafer strongly affects solar cell efficiency. Although Si crystallization processes aim at
producing high lifetime material directly, it is well known that the lifetime of many Si materials used in solar cell
production can be further increased by the use of gettering. Phosphorous (P) gettering, a process that takes place during the
emitter formation step, is a commonly used and effective way of purifying the bulk of wafers, thereby increasing lifetime.
Initially, solar cells were made with relatively deep and heavily doped emitters. However, a range of new solar cell designs
aiming at increased efficiency are currently being implemented on industrial scale. In several of these, a shallow emitter is
a key component. In order to form a shallow emitter without introducing new etching steps, lower diffusion temperatures,
shorter diffusion times or reduced surface concentrations of the P source can be used. In the present work, the effect of
reducing diffusion times in order to obtain emitters with high values of sheet resistance (>100 Ω∙cm) upon lifetime is
investigated. The P diffusion and gettering experiments reported here were performed both in a tube furnace using POCl3
as a dopant source, as well as in an in-line belt furnace using a set of liquid P sources. The lifetime in the Si wafers was
determined by microwave photoconductance decay (μ-PCD) measurements. Lifetime changes have been correlated with
impurity level measurements performed using a secondary ion mass spectrometry (SIMS) measurement setup. The results
clearly show that the effectiveness of the gettering process, as determined by lifetime increases, is strongly dependent on
the process parameters and that there are threshold values for time, temperature and surface concentration below which
efficient gettering is no longer obtained.
On a family of KP multi-line solitons associated to rational degenerations of real hyperelliptic curves and to the finite non-periodic Toda hierarchy
Creators: name: Abenda, Simonetta
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 37K40, 37K20, 14H50, 14H70

description: We classify the soliton data in the totally non--negative part of Gr(k,n) which may be associated to algebraic-geometric data on certain rational degenerations of regular hyperelliptic M-curves. Such degenerate rational curve G is a desingularization of that constructed in Abenda-Grinevich (arXiv:1506.00563) for soliton data in the totally positive part of Gr(n-1,n) and the KP wavefunctions are the same in such case. G is also the curve constructed in the paper for soliton data in the totally positive part of Gr(1,n). For any such G and for any fixed k between 2 and (n-2), we show that k-compatible soliton data correspond to a family of KP multi-line solitons (T-hyperelliptic) which parametrize soliton data in an (n-1)--dimensional variety of the totally positive part of the Grassmannian Gr(k,n). We explicitly characterize T-hyperelliptic solitons from the algebraic-point of view. T-hyperelliptic solitons are also connected to the solutions of the finite non-periodic Toda hierarchy because the tau function is the same for both systems. We investigate such relation from the algebraic point of view and compare the two spectral problems. In particular, the vacuum KP divisor and the Toda divisor coincide, while k--compatible divisors may be recursively constructed using known recursions for the Toda system. Finally, we also explain how KP divisors change under the space--time transformation which induces a duality tranformation from soliton data in Gr(k,n) to soliton data in Gr(n-k,n) and compare the action of such transformation both for the KP and the Toda systems.
description: 48 pages, 5 figures. Revised manuscript. Added sections, references and 2 figures
Implementing open science for all of Europe: ORE and other emerging models
Creators: name: Hall, Sam
name: Malaguarnera, Giulia
name: Tsoukala, Victoria
name: Dahle, Sebastian
Publisher: name: Zenodo
Year: 2023
Subjects: Scholarly Publishing, Open Access, Open Science, Scholarly Communication

description: This workshop introduces the concept of open science as an emerging publishing model in Europe. It highlights the importance of open science in promoting scientific progress, sharing knowledge, and facilitating collaboration among researchers. Presentations from speakers will focus on emerging open science models using Open Research Europe (ORE) as a case study as well as other publisher and institution-led initiatives. Presentations cover the following topics: The benefits of emerging open science publishing models Local language publishing The future of ORE and the European Commission’s plans and objectives Diamond Open Access regional approaches Open science publishing from a researcher’s perspective
Übersicht der im Jahr 1879 (genauer: Oktober 1878 bis Ende September 1879) erschienenen Beiträge und Materialien zur Geschichte von Stadt und Kanton Zürich
Creators: name: (:Unkn) Unknown
Publisher: name: Orell Füssli & Co.
Year: 1880
Subjects: subject: 010 Bibliografie
subject: Kanton Zürich
subject: Zürich
subject: Bibliografie
subject: Geschichte
subject: Landeskunde
subject: Volkskunde

description: Aus dem Zürcher Taschenbuch auf das Jahr 1880.
Edge-Illuminated Ultrathin Crystalline Silicon Solar Cell
Creators: name: Markvart, T.
name: Danos, L.
Publisher: name: WIP-Munich
Year: 2010
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Mono- and Multicrystalline Silicon Materials and Cells

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 2692-2693
description: This paper proposes a radically new solution to enhance the photoexcitation of silicon by directing
the illumination onto the edge of the solar cell by means of fluorescence energy collection. This approach makes
it possible to consider photovoltaic devices with efficiencies comparable to crystalline silicon thickness of only
several micrometers. We will present the first theoretical results and discuss such structures where the path length
of light is increased substantially, leading to efficient capture of the near bandgap photon flux. We shall show
that using a realistic model for the fluorescent collector, overall device efficiency (collector + solar cell) of 13%
maybe be achievable in the near future with a 1μm thick silicon structure. Efficiencies in excess of 17% can be
reached with the application of photonics or using thicker silicon layers. We demonstrate that edge illuminated
ultrathin silicon solar cells using fluorescent collectors can produce conversion efficiencies close to conventional
c-Si solar cell but with greatly reduced material requirements.
Symmetric products of equivariantly formal spaces
Creators: name: Franz, Matthias
Publisher: name: arXiv
Year: 2016
Subjects: subject: Algebraic Topology (math.AT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 55N91, 55S15 (Primary), 14P25 (Secondary)

description: Let X be a CW complex with a continuous action of a topological group G. We show that if X is equivariantly formal for singular cohomology with coefficients in a field, then so are all symmetric products of X and in fact all its Gamma-products. In particular, symmetric products of quasi-projective M-varieties are again M-varieties. This generalizes a result by Biswas and D'Mello about symmetric products of M-curves. We also discuss several related questions.
description: 9 pages; minor changes
Transient trapping of two microparticles interacting with optical tweezers and cavitation bubbles
Creators: name: Carmona-Sosa, Viridiana
name: Quinto-Su, Pedro A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Optics (physics.optics)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: In this work we show that two absorbing microbeads can briefly share the same optical trap. Optical forces pull the particles towards the waist of the trapping beam. However, once a particle reaches the vicinity of the waist, the surrounding liquid is superheated creating an explosion or cavitation bubble that pushes the particle away while lengthening or shortening the trajectories of the surrounding particles. In this way each particle briefly interacts with the beam waist at different times. We find that when two microbeads reach the waist simultaneously, a larger explosion might result in ejection from the trap. We measure the characteristic timescale of two particle coalescence near the waist and find a Poisson decaying exponential probability distribution. The results are consistent with a simple simulation and show why the characteristic timescales for transient trapping of multiple absorbing particles decrease as more objects are added.
Instabilities, motion and deformation of active fluid droplets
Creators: name: Whitfield, Carl A.
name: Hawkins, Rhoda J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We consider two minimal models of active fluid droplets that exhibit complex dynamics including steady motion, deformation, rotation and oscillating motion. First we consider a droplet with a concentration of active contractile matter adsorbed to its boundary. We analytically predict activity driven instabilities in the concentration profile, and compare them to the dynamics we find from simulations. Secondly, we consider a droplet of active polar fluid of constant concentration. In this system we predict, motion and deformation of the droplets in certain activity ranges due to instabilities in the polarisation field. Both these systems show spontaneous transitions to motility and deformation which resemble dynamics of the cell cytoskeleton in animal cells.
description: 9 + 6 SI pages, 6 figures
Übersicht der von Oktober 1881 bis Oktober 1882 erschienenen Beiträge und Materialien zur Geschichte von Stadt und Kanton Zürich
Creators: name: (:Unkn) Unknown
Publisher: name: S. Höhr
Year: 1883
Subjects: subject: 010 Bibliografie
subject: Kanton Zürich
subject: Zürich
subject: Bibliografie
subject: Geschichte
subject: Landeskunde
subject: Volkskunde

description: Aus dem Zürcher Taschenbuch auf das Jahr 1883.
Active galaxies can make axionic dark energy
Creators: name: Dimopoulos, Konstantinos
name: Cormack, Sam
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: AGN jets carry helical magnetic fields, which can affect dark matter if the latter is axionic. This preliminary study shows that, in the presence of strong helical magnetic fields, the nature of the axionic condensate may change and become dark energy. Such dark energy may affect galaxy formation and galactic dynamics, so this possibility should not be ignored when considering axionic dark matter.
description: 8 pages, published version
Game-theoretic characterization of the Gurarii space
Creators: name: Kubiś, W.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 46B04, 46B06, 46B25

description: We present a simple and natural infinite game building an increasing chain of finite-dimensional Banach spaces. We show that one of the players has a strategy with the property that, no matter how the other player plays, the completion of the union of the chain is linearly isometric to the Gurarii space.
description: Added new section; minor corrections; 6 pages
Dynamic Parallel and Distributed Graph Cuts
Creators: name: Yu, Miao
name: Shen, Shuhan
name: Hu, Zhanyi
Publisher: name: arXiv
Year: 2015
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Graph-cuts are widely used in computer vision. In order to speed up the optimization process and improve the scalability for large graphs, Strandmark and Kahl introduced a splitting method to split a graph into multiple subgraphs for parallel computation in both shared and distributed memory models. However, this parallel algorithm (parallel BK-algorithm) does not have a polynomial bound on the number of iterations and is found non-convergent in some cases due to the possible multiple optimal solutions of its sub-problems. To remedy this non-convergence problem, in this work we first introduce a merging method capable of merging any number of those adjacent sub-graphs which could hardly reach an agreement on their overlapped region in the parallel BK algorithm. Based on the pseudo-boolean representations of graph cuts,our merging method is shown able to effectively reuse all the computed flows in these sub-graphs. Through both the splitting and merging, we further propose a dynamic parallel and distributed graph-cuts algorithm with guaranteed convergence to the globally optimal solutions within a predefined number of iterations. In essence, this work provides a general framework to allow more sophisticated splitting and merging strategies to be employed to further boost performance. Our dynamic parallel algorithm is validated with extensive experimental results.
title: Industrial control systems cybersecurity analysis and countermeasures
Creators: name: Robles Durazno, Andres Santiago
Publisher: name: Edinburgh Napier University
Year: 2022

description: Industrial Control Systems (ICS) are frequently used in the manufacturing industry and critical infrastructures, such as water, oil and transportation. Disruption of these industries could have disastrous consequences, leading to financial loss or even human lives. Over time, technological development has improved ICS components; however, little research has been done to improve its security posture. In this research, a novel attack vector addressed to the Input and Output memory of the latest SIMATIC S7-1500 PLC is presented. The results obtained during the experimentation process show that attacks on the PLC memory can have a significantly detrimental effect on the operations of the control system. Furthermore, this research describes implements and evaluates the physical, hybrid and virtual model of a Clean Water Supply System developed for the cybersecurity analysis of the Industrial Control System. The physical testbed is implemented on the Festo MPA platform, while the virtual representation of this platform is implemented in MATLAB. The results obtained during the evaluation of the three testbeds show the strengths and weaknesses of each implementation.

Likewise, this research proposes two approaches for Industrial Control Systems cyber-security analysis. The first approach involves an attack detection and mitigation mechanism that focuses on the input memory of PLC and is implemented as part of its code. The response mechanism involves three different techniques: optimized data blocks, switching between control strategies, and obtaining sensor readings directly from the analogue channel. The Clean Water Supply System described above is employed for the practical evaluation of this approach. The second approach corresponds to a supervised energy-based system to anomaly detection using a novel energy-based dataset. The results obtained during the experimentation process show that machine learning algorithms can classify the variations of energy produced by the execution of cyber-attacks as anomalous. The results show the feasibility of the approach presented in this research by achieving an F1-Score of 95.5%, and 6.8% FNR with the Multilayer Perceptron Classifier.
Übersicht der vom Oktober 1882 bis Oktober 1883 erschienenen Beiträge und Materialien zur Geschichte von Stadt und Kanton Zürich
Creators: name: (:Unkn) Unknown
Publisher: name: S. Höhr
Year: 1884
Subjects: subject: 010 Bibliografie
subject: Kanton Zürich
subject: Zürich
subject: Bibliografie
subject: Geschichte
subject: Landeskunde
subject: Volkskunde

description: Aus dem Zürcher Taschenbuch auf das Jahr 1884.
Tricycle Driven by Solar Cells and Manpower
Creators: name: Fangsuwannarak, K.
name: Fangsuwannarak, T.
Publisher: name: WIP
Year: 2011
Subjects: PV Systems
Off-grid Applications

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 4161-4163
description: In this paper, we have an achievement to design and to develop the tricycle using multi-power
sources as direct electricity converted from solar cells and incorporating drive from pedals with manpower. The solar
panel as a small roof mounted above the tricycle generates the electric power which is storaged in battaries for
driving electric motor. The unique speed of the hybrid tricycle was generated from the speed combination of electric
motor and pedals drive with a one way clutch. The differential gear is designed and suitably built to make the
allowance for difference of the speed between the motor and pedal drive in order to gain the best operating efficiency.
A rotational force of the hybride tricycle was transmitted to drive shaft of only one rear wheel because of low speed
of the hybrid trycycle. The simple design with one differential gear was concerned light weight, low speed and safty
for ride. The driving test with using only electicity from solar cells obtained the maximun speed of 18.10 kilometers
per hour. In the case of the driving test with manpower, the maximun speed is of around 25.90 kilometers per hour.
Subsequently, the net speed of the hybid tricycle obtains 33.50 kilometers per hour at maximum speed under
combined operation of dc motor and pedal man powers. The main mechanical loss occurs in the transmission case.
The tricycle driven the hybrid power sources can be ride up to hill with maximum gradient of about 20°.
Focus markers that link topic and comment
Creators: name: Schwarz, Anne
Publisher: name: Humboldt-Universität zu Berlin, Philosophische Fakultät II
Year: 2009
Subjects: subject: Informationsstruktur
subject: Afrikanische Sprachen
subject: 490 Andere Sprachen
subject: 400 Sprachwissenschaft, Linguistik

description: This talk deals with the interdependence between the pragmatic categories topic and focus as displayed by certain alleged focus marking particles of some West African languages.
Übersicht der von Oktober 1879 bis Oktober 1880 erschienenen Beiträge und Materialien zur Geschichte von Stadt und Kanton Zürich
Creators: name: (:Unkn) Unknown
Publisher: name: Orell Füssli & Co.
Year: 1881
Subjects: subject: 010 Bibliografie
subject: Kanton Zürich
subject: Zürich
subject: Bibliografie
subject: Geschichte
subject: Landeskunde
subject: Volkskunde

description: Aus dem Zürcher Taschenbuch auf das Jahr 1881.
Quantum-Noise-Limited Sensitivity-Enhancement of a Passive Optical Cavity by a Fast-Light Medium
Creators: name: Smith, David D.
name: Luckay, H. A.
name: Chang, Hongrok
name: Myneni, Krishna
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We demonstrate for a passive optical cavity containing a dispersive atomic medium, the increase in scale factor near the critical anomalous dispersion is not cancelled by mode broadening or attenuation, resulting in an overall increase in the predicted quantum-noise-limited sensitivity. Enhancements of over two orders of magnitude are measured in the scale factor, which translates to greater than an order-of-magnitude enhancement in the predicted quantum-noise-limited measurement precision, by temperature tuning a low-pressure vapor of non-interacting atoms in a low-finesse cavity close to the critical anomalous dispersion condition. The predicted enhancement in sensitivity is confirmed through Monte-Carlo numerical simulations.
Schmid, Hansjörg; Basol-Gürdal, Ayse; Middelbeck-Varwick, Anja; Ucar, Bülent (Hrsg.): Zeugnis, Einladung, Bekehrung
Creators: name: Stenschke, Christoph W.
Publisher: name: European journal of theology
Year: 2024

description: European journal of theology, V. 21 N. 1 (2012): European Journal of Theology, Band 21, Heft 1
Radiative Models and Satellite Data for Estimation of Solar Irradiances at Roof Level: a WebGIS Approach for Mountain Region
Creators: name: Petitta, M.
name: Castelli, M.
name: Emili, E.
name: Zebisch, M.
name: Steurer, C.
name: Tetzlaff, A.
name: Colli, A.
name: Fanni, L.
name: Sparber, W.
Publisher: name: WIP
Year: 2011
Subjects: PV Systems
PV and Architecture

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 4164-4166
description: The Italian “Conto Energia” programme is one of the main causes why the number of photovoltaic
(PV) installations in Italy is constantly increasing. In this context, a valid web-based instrument to define the solar
potential of each single roof in a city could play a fundamental role in helping to set up a first assessment for possible
future installation.
Similar GIS-based instruments for solar radiation and PV potential evaluation are already available. EURAC
developed a webgis platform for the estimation of the solar irradiances at roof level. This tool, compared to PVGIS
and commercial tools, can be considered an intermediate approach with some innovative points such as an accurate
model of the atmosphere, the use of real-time satellite data and the effect of the different wavelength in the radiation
budget.
After a first release, further developments in the radiative transfer processes are planned. In order to have a more
accurate and precise evaluation of incoming solar irradiance, the atmospheric composition will be considered and the
two components of the incoming radiation, the direct and the diffuse, will be estimated. This surface-atmosphericcoupled
model will receive inputs from both satellite data and from ground based instruments.
Phenomenology of the new physics coming from 2HDMs to the neutrino magnetic dipole moment
Creators: name: Tarazona, Carlos G.
name: Diaz, Rodolfo A.
name: Morales, John
name: Castillo, Andres
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In several frameworks for leptons-sectors of two Higgs doublet models, we calculate the magnetic dipole moment for the different flavor types of neutrino. Computations are carried out by assuming a normal hierarchy for neutrino masses, and analyzing the process $ν\rightarrow νγ$ with a charged Higgs boson into the loop. The analysis was performed by sweeping the charged Higgs mass and taking into account the experimental constraints for relevant parameters in Two Higgs Doublet Models with and without flavor changing neutral currents; obtaining magnetic dipole moments close to the experimental thresholds for tau neutrinos in type II and Lepton-specific cases. In the neutrino-specific scenario, the contribution of new physics could be sizeable to the current measurement for flavor magnetic dipole moment. This fact leads to excluding possible zones in the parameter space of charged Higgs mass and vacuum expectation value of the second doublet.
description: 16 pages, 6 figures. Some parts of the formulations have been treated formerly in our article arXiv:1506.00735 and arXiv:1512.07722
Übersicht der von Oktober 1880 bis Oktober 1881 erschienenen Beiträge und Materialien zur Geschichte von Stadt und Kanton Zürich
Creators: name: (:Unkn) Unknown
Publisher: name: S. Höhr
Year: 1882
Subjects: subject: 010 Bibliografie
subject: Kanton Zürich
subject: Zürich
subject: Bibliografie
subject: Geschichte
subject: Landeskunde
subject: Volkskunde

description: Aus dem Zürcher Taschenbuch auf das Jahr 1882.
A Composite Model for the 750 GeV Diphoton Excess
Creators: name: Harigaya, Keisuke
name: Nomura, Yasunori
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We study a simple model in which the recently reported 750 GeV diphoton excess arises from a composite pseudo Nambu-Goldstone boson---hidden pion---produced by gluon fusion and decaying into two photons. The model only introduces an extra hidden gauge group at the TeV scale with a vectorlike quark in the bifundamental representation of the hidden and standard model gauge groups. We calculate the masses of all the hidden pions and analyze their experimental signatures and constraints. We find that two colored hidden pions must be near the current experimental limits, and hence are probed in the near future. We study physics of would-be stable particles---the composite states that do not decay purely by the hidden and standard model gauge dynamics---in detail, including constraints from cosmology. We discuss possible theoretical structures above the TeV scale, e.g. conformal dynamics and supersymmetry, and their phenomenological implications. We also discuss an extension of the minimal model in which there is an extra hidden quark that is singlet under the standard model and has a mass smaller than the hidden dynamical scale. This provides two standard model singlet hidden pions that can both be viewed as diphoton/diboson resonances produced by gluon fusion. We discuss several scenarios in which these (and other) resonances can be used to explain various excesses seen in the LHC data.
description: 22 pages, 10 figures; factors in eqs. (10) and (20) corrected
Innovative Diffusion Process for Crystalline Silicon Solar Cells with High Conversion Efficiency
Creators: name: Tang, W.-C.
name: Lin, C.Y.
name: Tu, C.H.
name: Lin, K.C.
Publisher: name: WIP
Year: 2011
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Silicon Solar Cell Improvements

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 1239-1242
description: Owing to reducing prime costs of raw materials for the crystalline-Si solar cell, the most promising way
to reach grid parity of electricity is to increase conversion efficiency. To achieve higher efficiency solar cell, control of
emitter doping profile by diffusion process is very critical. Selective emitter with very high phosphorus (P) doping at silver
paste contact area and very lightly doping at shallow emitter area to get good contact performance and meanwhile, the
better blue response for higher conversion efficiency is therefore proposed. But the adding processes for achieving such a
selective emitter device are very expensive. Hence, we still select conventional diffusion process to form the cell emitter
without adding extra process. First of all, optimization of emitter diffusion process
and understanding the firing-through mechanism of front-side silver paste to emitter should be studied. Conventional
tube-type diffusion process for industrial solar cells is to deposit a pre-layer of P-glass using 3 POCl source followed by a
drive-in step at the same setting temperature on surface of p-type Si wafer. Here, we propose a novel diffusion process to
adjust penetrated P profile into Si and enhance solar cell conversion efficiency by using different setting temperatures on
pre-layer and drive-in steps. It is found that the uniformity of emitter sheet resistance can be greatly improved and provides
a good silver paste contact. An average conversion efficiency of 18.54% of a sample size of 100 pieces of 6" p-type mono
crystalline Si 2 bus-bars solar cell without any extra process can be finally achieved. Conversion efficiency of 18.54% is
comparable to that of cell in production with selective emitter knobs.
Input-output relationship in social communications characterized by spike train analysis
Creators: name: Aoki, Takaaki
name: Takaguchi, Taro
name: Kobayashi, Ryota
name: Lambiotte, Renaud
Publisher: name: arXiv
Year: 2016
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Social and Information Networks (cs.SI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We study the dynamical properties of human communication through different channels, i.e., short messages, phone calls, and emails, adopting techniques from neuronal spike train analysis in order to characterize the temporal fluctuations of successive inter-event times. We first measure the so-called local variation (LV) of incoming and outgoing event sequences of users, and find that these in- and out- LV values are positively correlated for short messages, and uncorrelated for phone calls and emails. Second, we analyze the response-time distribution after receiving a message to focus on the input-output relationship in each of these channels. We find that the time scales and amplitudes of response are different between the three channels. To understand the impacts of the response-time distribution on the correlations between the LV values, we develop a point process model whose activity rate is modulated by incoming and outgoing events. Numerical simulations of the model indicate that a quick response to incoming events and a refractory effect after outgoing events are key factors to reproduce the positive LV correlations.
Composition and activity of antifungal lipopeptides produced by Bacillus spp. in daqu fermentation
Creators: Li, Zhen
Fernandez, Kleinberg X.
Vederas, John C.
Gänzle, Michael G.
Publisher: name: University of Alberta Library
Year: 2023

Daqu is a solid-state fermentation and saccharification starter for the Chinese liquor baijou. During the daqu stage, amylolytic and proteolytic enzymes are produced by Bacillus and fungi. Bacillus spp. also produce lipopeptides with a broad spectrum of antimicrobial activities but direct evidence for their impact on community assembly in daqu is lacking. This study aimed to study the interaction between Bacillus spp. and fungi in daqu models. The antifungal activity of surfactin, fengycin, and iturin A was initially assessed in vitro. Iturin A displayed the strongest antifungal activity (MIC = 10–50 mg/L). In situ antifungal activity of B. amyloliquefaciens and B. velezensis against molds was observed in a simple daqu model inoculated with single strains of Bacillus species. Formation of lipopeptides in situ was supported by quantification of mRNA encoding for enzymes for surfactin, fengycin, and iturin A biosynthesis. In situ antifungal activity of Bacillus species was also observed in a complex daqu model that was inoculated with 8 bacterial or fungal strains plus one of the three strains of Bacillus. A relationship of lipopeptides to in situ antifungal activity was further supported by detection of the lipopeptides by liquid chromatography coupled to mass spectrometry. Both results indicated that B velezensis FUA2155 had higher antifungal activity in the daqu model, and was the only strain that produced multiple iturin A congeners in situ. Taken together, this study provides evidence that production of lipopeptides by Bacillus species in daqu may impact community assembly and hence product quality.
Passivating Property and Thermal Stability of Amorphous Silicon/Silicon Nitride Double Passivating Layer on CZ Crystalline Si Substrate
Creators: name: Li, H.
name: Wenham, S.R.
Publisher: name: WIP
Year: 2011
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Silicon Solar Cell Improvements

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 1398-1402
description: The inability to withstand temperatures much above their deposition temperature without significant
degradation has limited the application of hydrogenated amorphous silicon (a-Si:H) for surface passivation. This
limitation is of importance particularly with multicrystalline silicon materials where temperatures of at least 400°C
are needed for effective hydrogenation of the crystallographic defects such as grain boundaries. To address this
limitation, in this work the surface passivation quality and thermal stability of a stack passivating system, combining
a layer of intrinsic a-Si:H and a capping layer of silicon nitride (SiNx:H), on p-type crystalline silicon wafers is
studied for different thickness of underlying a-Si:H layer. For better understanding the surface passivating properties
and the thermal stability of the particular passivating stack in comparison to a single a-Si:H layer have been studied
on FZ wafers. It is established that the incorporation of a capping SiNx:H layer could result in increased as-deposited
effective lifetime and implied Voc (iVoc) values for very thin a-Si:H thickness, benefiting from the more effective
hydrogen reconfiguration at the interface area. However, such layers degrade more quickly when exposed to
prolonged thermal treatments due to hydrogen out-effusion through the microvoid-rich structure or epitaxial
crystallization near the interface area.
title: Sonification of exosolar planetary systems
Creators: name: Quinton, Michael Albert Paul
Publisher: name: Edinburgh Napier University
Year: 2022

description: The purpose of this research is to investigate sonification techniques suitable for astronomers to explore exosolar planetary data. Four studies were conducted, one with sonification specialists and three with exosolar planetary astronomers. The first study was to establish existing practices in sonification design and obtain detailed information about design processes not fully communicated in published papers. The other studies were about designing and evaluating sonifications for three different fields of exosolar astronomy. One, to sonify atmospheric data of an exoplanet in a habitable zone. Another, to sonify accretion discs located in newly developing exosolar systems. The third sonification, planet detection in an asteroid belt. User-centred design was used so that mappings of the datasets could be easily comprehensible. Each sonification was designed to sound like the natural elements that were represented in the data. Spatial separation between overlapping datasets can make hidden information more noticeable and provide additional dimensionality for sound objects. It may also give a more realistic interpretation of the data object in a real-world capacity. Multiple psychoacoustic mappings can convey data dimensionality and immediate recognition of subtle changes. Sound design aesthetics that mimic natural sounds were more relatable for the user. Sonification has been effective within the context of these studies offering new insight by unmasking previously unnoticed data particulars. It has also given the astronomers a broader understanding of the dimension of the data objects that they study and their temporal-spatial behaviours. Future work pertains to the further development and creation of a sonification model consisting of different aspects of exosolar astronomy that could be developed for a platform that houses different data related to this field of study.
AQuES
Creators: name: Stillger, Michael
Publisher: name: Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät II
Year: 2000
Subjects: subject: Anfragebearbeitung
subject: Datenbankmanagementsystem
subject: Anfrageoptimierung
subject: Software-Agenten
subject: database management systems
subject: query processing
subject: query optimization
subject: software agents
subject: 510 Mathematik
subject: 27 Mathematik
subject: ST 270

description: Die parallele Anfragebearbeitung für relationale Datenbankmanagementsysteme (RDBMS) ist wegen ihrer unterschiedlichen Arten der Ausführungsparallelität und den Eigenschaften der zugrunde liegenden parallelen Architektur ein äusserst komplexes Problem. Systemänderungen zur Laufzeit der Anfrage können zusätzlich ein dynamisches Verhalten der ausführenden Komponenten erfordern, um eine nahezu optimale Antwortzeit zu gewährleisten. Diese Arbeit stellt einen neuen, flexiblen Ansatz für die Optimierung und Abarbeitung von komplexen Anfragen vor, der besonders die dynamische Optimierung berücksichtigt. Insbesondere werden in der Arbeit folgende Teile präsentiert: 1. die Architektur eines neuen, verteilt-kooperierenden Komponentensystems beeinflusst von agenten-orientierten Konzepten; 2. der Entwurf und die Realisierung einer neuen Kommunikationsinfrastruktur für die identifizierten Systemkomponenten; 3. der Entwurf und die Implementierung eines flexiblen Anfrageoptimierers mit einem neuen, zufallsbasierten Algorithmus; und 4. der Entwurf und die Realisierung einer parallel arbeitenden Ausführungskomponente unter besonderer Berücksichtigung der dynamischen Anfrageoptimierung. Bei der Entwicklung der Konzepte standen neben den spezifischen Anforderungen für RDBMS besonders die Konfigurierbarkeit und die Erweiterbarkeit des verteilten Systems im Vordergrund.
description: Parallel query evaluation for relational database management systems (RDBSM) still remains a challenging problem. Modern systems must show near optimal performance in spite of running in a heterogeneous hardware environment, exploiting different ways of parallelism and dealing with unpredictable system load. This thesis paper presents a dynamic and flexible system addressing the issues of optimization and evaluation of relational queries for a distributed and dynamic environment. In particular, this work consists of: 1) the architecture of a distributed system which was inspired by the concepts of software agents, 2) the architecture and the implementation of a communication infrastructure for the system components, 3) the architecture and the implementation of a new query optimization algorithm, and 4) the concept and the implementation of a new query evaluation engine for parallel execution, which enables runtime optimization of queries. Furthermore, the design supports the extension and the configuration of the system and its components.
Motzkin monoids and partial Brauer monoids
Creators: name: Dolinka, Igor
name: East, James
name: Gray, Robert D.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Group Theory (math.GR)
subject: Combinatorics (math.CO)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: We study the partial Brauer monoid and its planar submonoid, the Motzkin monoid. We conduct a thorough investigation of the structure of both monoids, providing information on normal forms, Green's relations, regularity, ideals, idempotent generation, minimal (idempotent) generating sets, and so on. We obtain necessary and sufficient conditions under which the ideals of these monoids are idempotent-generated. We find formulae for the rank (smallest size of a generating set) of each ideal, and for the idempotent rank (smallest size of an idempotent generating set) of the idempotent-generated subsemigroup of each ideal; in particular, when an ideal is idempotent-generated, the rank and idempotent rank are equal. Along the way, we obtain a number of results of independent interest, and we demonstrate the utility of the semigroup theoretic approach by applying our results to obtain new proofs of important representation theoretic results concerning the corresponding diagram algebras, the partial (or rook) Brauer algebra and Motzkin algebra.
description: 34 pages, 13 figures, 5 tables. v2: post refereeing, to appear in J Algebra
title: An exploratory study on the adoption of Infrastructure as a Service (IaaS) for Small and Medium Enterprises (SMEs) in the media and advertising industry in Singapore
Creators: name: Pok, Stanley
Publisher: name: Edinburgh Napier University
Year: 2022

description: The challenging and highly competitive business environment necessitates that businesses adopt information technology to leverage their position in the market. Cloud computing is one of the technological advancements with great promise to small and medium enterprises. This study sought to explore the adoption of Infrastructure as a Service (IaaS) among the Small and Medium Enterprises (SMEs) in Singapore’s media and advertisement industry.

Data were collected from 15 practitioners from five SMEs to provide an insight into their opinions and views on the adoption of IaaS. Together with existing literature and through qualitative research analysis the validated information collected were used to guide the analysis and presentation of the thesis. The resulting evidence guided the design of the proposed conceptual model which could provide informed decision making on IaaS adoption.

The study resulted in key findings that are valuable to the stakeholders in the industry. Practitioners have expressed concerns over challenges associated with IaaS adoption including upfront costs, difficulties in maintenance, and complexity in the billing processes. The research data suggested that IaaS adoption reduced costs of operation and released quality time for SMEs to focus on core strategic business issues resulting in increased competitiveness.

The contribution of this study dwells on a unified approach using the secondary (desk research) and primary (field research) approaches. This research resulted in an original and pragmatic model focusing on factors affecting the IaaS adoption, hence providing the bulk of knowledge in IaaS adoption among the SMEs which will continue to attract the attention of scholars given the need to rely on Information Technology (IT) as a basis to improve business competitiveness. Further, the study highlighted areas for further research to expand the knowledge in accelerating IaaS adoption for enhancing productivity for SMEs to stay relevant and attain sustainable competitive advantage in the digital economy.
title: Wechselwirkungen von Baulogistik und Bauproduktion im Fassadenbau
Creators: name: Schumann, Jan
Publisher: name: UNSPECIFIED
Year: 2022

description: Die vorliegende Arbeit behandelt die Wechselwirkungen zwischen den baulogistischen Anforderungen der Ausführung von Fassadenbauleistungen und deren Berücksichtigung in Planung und Integration in den Bauablauf von Hochhäusern mit Vorhangfassaden in innerstädtischen Lagen. Obwohl es sich augenscheinlich zunächst um eine baubetriebliche oder bautechnologische Fragestellung handelt, werden Aspekte und Mechanismen der Projektorganisation, also der Projektaufbauorganisation und der Projektablauforganisation, berücksichtigt. Denn das baustellenbezogene Querschnittsthema Baulogistik bietet viele Möglichkeiten, die Realisierungsphase eines Bauwerks im Interesse des Auftraggebers so zu gestalten, dass seine Projektziele erreicht werden. Da das Gewerk Fassade das Leitgewerk der Ausbauphase ist, bietet es sich an, an dieser Stelle eine Verbesserung des Produktionsablaufs zu erwirken. Die Herstellung der Gebäudehülle ist grundsätzlich Voraussetzung, dass Folgegewerke beginnen können. Es liegt demnach im Interesse des Auftraggebers, dass dieser Vorgang in möglichst kurzer Zeit abgeschlossen wird. Und gerade das baubetriebliche Handlungsfeld der Baulogisitik bietet hierfür einen großen Gestaltungsspielraum. Zur Erfassung und Beschreibung der Ausgangssituation erfolgte eine Bestandsaufnahme in Form einer morphologischen Bauprojekttypanalyse aus der zunächst Hypothesen abgeleitet werden, die im Wesentlichen nach Auswertung von leitfadengestützter Expert*inneninterviews bestätigt wurden. Aus den Ergebnisse der qualitativen Inhaltsanalyse der Expert*inneninterviews wird das Prozessmodell der Baulogistik um Handlungs- und Gestaltungsoptionen für Auftraggeber, Fassaden- und Objektplaner, Baulogistikplanern und -dienstleister, sowie Ausführende Unternehmen, erweitert.
High-Temperature Interval RTA as Efficient Defect Annealing for Polycrystalline Si Thin-Film Solar Cells on Glass
Creators: name: Rau, B.
name: Zelt, M.
name: Gorka, B.
name: Gall, S.
name: Rech, B.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Thin Films Solar Cells
Thin Film Crystalline Silicon Solar Cells and Wafer Equivalents

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 2344-2348
description: In this report, we present a systematic study of an alternative interval RTA defect annealing approach
based on repeated short time annealing plateaus. For this we used polycrystalline Si thin-films made by solid phase
crystallization (SPC) on Schott Borofloat® 33 glass (standard material of CSG Solar AG, Thalheim). Interval
annealing can reduce the deformation of the glass but still gain in a significant improvement of the Si films. The
paper will discuss the influence of the process parameters like plateau duration, number of repetitions and plateau
temperature on solar cell parameters like open-circuit voltage and pseudo fill factor. A comparison with conventional
one-plateau RTA profiles will be presented. The different thermal budgets will be discussed with respect to cell
improvement and substrate deformation.
Learning Local Dependence In Ordered Data
Creators: name: Yu, Guo
name: Bien, Jacob
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistics Theory (math.ST)
subject: Computation (stat.CO)
subject: Methodology (stat.ME)
subject: Machine Learning (stat.ML)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: In many applications, data come with a natural ordering. This ordering can often induce local dependence among nearby variables. However, in complex data, the width of this dependence may vary, making simple assumptions such as a constant neighborhood size unrealistic. We propose a framework for learning this local dependence based on estimating the inverse of the Cholesky factor of the covariance matrix. Penalized maximum likelihood estimation of this matrix yields a simple regression interpretation for local dependence in which variables are predicted by their neighbors. Our proposed method involves solving a convex, penalized Gaussian likelihood problem with a hierarchical group lasso penalty. The problem decomposes into independent subproblems which can be solved efficiently in parallel using first-order methods. Our method yields a sparse, symmetric, positive definite estimator of the precision matrix, encoding a Gaussian graphical model. We derive theoretical results not found in existing methods attaining this structure. In particular, our conditions for signed support recovery and estimation consistency rates in multiple norms are as mild as those in a regression problem. Empirical results show our method performing favorably compared to existing methods. We apply our method to genomic data to flexibly model linkage disequilibrium. Our method is also applied to improve the performance of discriminant analysis in sound recording classification.
High Speed Laser Edge Deletion of Photovoltaic Panels
Creators: name: Swain, R.C.
name: Guo, J.
name: Wieland, K.A.
name: Paudel, N.R.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Thin Films Solar Cells
CdTe Solar Cells

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 2376-2378
description: CdTe solar cell sample coupons of differing stack configurations were created and standard current
voltage (J-V) measurements were performed. We then performed laser edge deletion on the samples using a research
test laser system with two lasers:  = 1064 nm, RR = 50kHz, 95 ns at 3.2mJ and 385 ns at 2.4mJ. We tested the
processed samples for over the surface leakage current (HiPot) and surface roughness. J-V measurements were
repeated on the samples to measure possible shunt resistance degradation. In addition, we performed scanning white
light interferometry measurements of the deleted zone surface, and scanning electron microscopy and EDX
measurements on the stack boundary to determine the quality of the edge of the deleted area. Both laser systems were
found to provide adequate edge isolation without inducing additional shunting in the samples.