cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
2D TCAD Simulation of High Efficiency n-Type c-Si Solar Cell: Correlation between the Screen-Printing Metallization and the Loss in the Cell Voc
Creators: name: Singer, J.
name: Cabal, R.
name: Brand, P.
name: Veschetti, Y.
Publisher: name: WIP
Year: 2012
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Silicon Solar Cell Characterization and Modelling

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 1351-1354
description: N-type silicon solar cells are very promising in the short-term since high conversion efficiencies can be
reached with a low-cost process. An industrially-compatible process has been developed, providing 19.2% efficiency
with a Voc of 634 mV, and an implied Voc of ~670 mV before the screen-printing step. In order to understand the cell
performance limitations and determine ways of improvements, two-dimensional TCAD simulations have been
developed. It was shown that such physically-based simulations were able to reproduce experimental behaviors, and
to address some technological issues. Taking into consideration the metal penetration into the front and back diffused
layer, allowed us to simulate precisely the spectral response and the I(V) characteristics of our fabricated samples.
This model was used in order to determine different ways of improvements. Simulation results indicated that the
formation of deep diffusion profiles (> 1 μm) at the front and at the back side of the solar cells can reduce the drop of
the Voc and thus lead to final efficiency around 20%.
Post-Deposition Optimisation of LPCVD-Grown ZnO:B as Front TCO in Silicon Thin-Film Solar Cells
Creators: name: Sergeev, O.
name: Bienert, T.
name: Feser, C.
name: Grunewald, K.
name: Neumüller, A.
name: Nowak, R.-E.
name: Kellermann, M.
name: Sürig-Morieng, J.
name: Von Maydell, K.
Publisher: name: WIP
Year: 2012
Subjects: Thin Film Solar Cells
Amorphous and Microcrystalline Silicon Solar Cells

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 2148-2152
description: Thin-film solar cells in superstrate configuration have very specific requirements for optical and
electrical properties of the front contact, like high transmittance and haze as well as a low sheet resistance.
Transparent conductive oxides (TCO) have already been proven to be a good choice, but their optical and electrical
properties can be improved even after the deposition by various methods. In this contribution the influence of
hydrogen plasma post-treatment on the electro-optical properties of LPCVD grown ZnO:B TCO (BZO) and sputtered
ZnO:Al TCO (AZO) as well as on the whole solar cell will be analysed. Organic impurities have been found as
drawback of LPCVD-deposition process and as a reason of the strong degradation of BZO films in air. It was found
that BZO films exhibit a large carbon concentration that results in increased sheet resistance. H2-plasma treatment
leads to etching of carbon impurities and thus provides enhancement of conductivity (mostly by boost of carrier
mobility). This allows recovering of degraded BZO and fabrication of thinner BZO films (or less doped). Amorphous
silicon thin-film solar cells show significant increase of open circuit voltage and efficiency due to better serial
resistance value when deposited on H2-treated BZO. Combination of HCl-etching and H2-plasma treatment has been
proposed and investigated to improve the morphology, optical and electronic properties of LPCVD-BZO front
contact. It has been found that etching enhances surface topography and thus light scattering while H2-plasma
treatment decreases the sheet resistance significantly. The related enhance of overall properties of micromorph silicon
solar cells is expected.
High Efficiency Potential of Cz Silicon Solar Cells from Metallurgical Process Route
Creators: name: Preis, P.
name: Díaz-Pérez, P.
name: Rudolph, D.
name: Peter, K.
name: Soiland, A.-K.
Publisher: name: WIP
Year: 2012
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Silicon Feedstock, Crystallisation and Wafering

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 1023-1025
description: A further reduction of cost in photovoltaic industry requires the use of cost-saving feedstock and high solar cell efficiencies at the same time. In this work we present high solar cell efficiencies based on low cost solar grade silicon from metallurgical process route. Therefore a standard industrially applicable solar cell process and an etch back selective emitter process were applied to p-type Cz SoG-Si and poly-Si wafers. Average solar cell efficiencies of 18.3% - 18.4% within the standard process and 18.7% using the selective emitter process could be achieved on both materials, demonstrating no disadvantages for the SoG-Si. In addition n-type Cz SoG-Si wafers were processed using boron and phosphorous diffusion to form the p+-emitter and the n+-BSF respectively leading to bifacial solar cells. Average solar cell efficiencies of 18.8% - 19.1% with best solar cells exceeding 19.2% cell
efficiency were obtained. Further investigations focused on boron-oxygen related light-induced-degradation, due to
its major role for SoG-Si.
Investigating determinants of choice and predicting market shares of renewable-based heating systems under alternative policy scenarios
Creators: name: Franceschinis, Cristiano
name: Thiene, Mara
name: Franceschinis, Cristiano
name: Thiene, Mara
Publisher: name: Unknown
Year: 2020
Subjects: subject: Consumer/Household Economics
subject: Ambient heating systems choice
subject: Latent class Model
subject: Market shares
subject: Willingness to pay

description: Fostering the uptake of heating technologies based on renewable resources is an important part of the EU energy policy. Yet, despite e!orts to promote their dif-fusion, heating systems based on fossil fuels are still predominant. In order to better tailor energy policies to citizens preferences, it is crucial to collect accurate informa-tion on their determinants of heating choices. At this purpose, we adopted a choice experiment and a latent class model to analyze preferences of householders in the Veneto region (North-East Italy) for di!erent heating systems and their key features. We focused on three devices based on biomass and three on fossil fuels, and account-ed for technical, economic and environmental characteristics of such systems. Model estimates highlight the presence of substantial preference heterogeneity among the population, which can be partially explained by citizens socio-demographics. We also use model outputs to simulate market shares for heating systems under alternative policy scenarios. Results provide interesting suggestions to inform the design of poli-cies aimed at fostering the adoption of biomass-based heating systems.
Global Grid-Parity Dynamics on a National and Regional Level
Creators: name: Gerlach, A.
name: Breyer, C.
Publisher: name: WIP
Year: 2012
Subjects: PV - a Major Electricity Source
Markets

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 4467-4492
description: Grid-parity is a very important milestone for further photovoltaic (PV) diffusion. An updated grid-parity model is
presented, which is based on levelized cost of electricity (LCOE) coupled with the experience curve approach.
Relevant assumptions for the model are given and its key driving forces are discussed in detail. Results of the LCOE
analysis are shown for 223 countries/ islands and a total of 446 market segments all over the world. Grid-parity
events have been calculated for 189 residential and 179 industrial market segments. High PV industry growth rates
enable a fast reduction of LCOE. Depletion of fossil fuel resources and climate change mitigation forces societies to
internalise these effects and pave the way for sustainable energy technologies. First grid-parity events have already
occurred. The 2010s are characterized by ongoing grid-parity events throughout the most regions in the world,
reaching an addressable market of up to 95% of total global electricity market till 2025. In consequence, new political
frameworks for maximizing social benefits will be required. In parallel, PV industry tackles its next milestone, fuelparity.
In conclusion, PV is on the pathway to become a highly competitive energy technology.
Higgs at LHC
Creators: name: Bolognesi, Sara
name: Bozzi, Giuseppe
name: Di Simone, Andrea
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: An overview of recent theoretical results on the Higgs boson and its discovery strategy at ATLAS and CMS will be presented, focusing on the main Higgs analysis effective with low integrated luminosity (less than 30 fb^-1).
description: 10 pages, 9 figures, talk given at: V Workshop Italiano sulla fisica p-p ad LHC, Perugia, Italy, 30 Jan. - 2 Feb. 2008
Developments of Screen-Printing Boron and Phosphorus Sources for Selective Emitter Solar Cells
Creators: name: Uzum, A.
name: Yoshiba, S.
name: Dhamrin, M.
name: Kamisako, K.
Publisher: name: WIP
Year: 2012
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Silicon Solar Cell Improvements

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 1857-1860
description: Screen-printing boron and phosphorus sources for n-type silicon solar cells were introduced.
Dependance of emitter sheet resistances and bulk lifetimes on temperature and time were examined on mc- and CZ-Si
n-type wafers after boron and phosphorus diffusions, separately. Boron diffusion was applied on mc-Si n-type wafers
at 950°C and 975°C for 10 to 40 min. Effective carrier lifetime and the emitter saturation current of boron diffused
p+/n/p+ structures were measured and lifetime improvements up to around 200 s, with Joe of 75 fA/cm² were realized.
Phosphorus diffusion was applied to CZ-Si n-type wafers and bulk lifetimes were measured after removing the n+
layers from both surfaces of the wafers. Over 1 ms bulk lifetimes were confirmed after phosphorus diffusion at 875°C,
900°C and 925°C. These results suggest the applicability of screen-printable phosphorus and boron pastes to form
high quality p+ and n+ layers for the bifacial silicon solar cells or back contact solar cells.
Bounds on fluctuations for finite-time quantum Otto cycle
Creators: name: Saryal, Sushant
name: Agarwalla, Bijay Kumar
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: For finite-time quantum Otto heat engine with working fluid consisting of either a (i) qubit or (ii) a harmonic oscillator, we show that the relative fluctuation of output work is always greater than the corresponding relative fluctuation of input heat absorbed from the hot bath. As a result, the ratio between the work fluctuation and the input heat fluctuation receives a lower bound in terms of the square value of the average efficiency of the engine. The saturation of the lower bound is received in the quasi-static limit of the engine and can be shown for a class of working fluids that follow a scale-invariant energy eigenspectra under driving.
description: 8 pages, 3 figures
The evaluation of multiple sclerosis through static chromatic perimetry
Creators: name: Kozak, John François
Publisher: name: University of British Columbia
Year: 2010

description: The purpose of the present study was to examine whether or not luminance thresholds through static, chromatic perimetry could be used to distinguish visual threshold losses in multiple sclerosis from that of normal functioning. It was proposed that threshold losses would be greater at both the fovea and near foveal eccentricities due to the assumption that the cone system, unlike the rods, would be the most effected by MS. Twenty-two MS patients and thirty age matched normals were tested on an extensively modified version of the Fieldmaster F225 Automatic Perimeter. Thresholds were established for an achromatic, red, and blue stimulus along a 195 - 15 degree meridian. Testing was done using a 45 apostilb background, to which the subjects were preadapted prior to testing. Results indicated that there was extensive cone involvement (loss in chromatic thresholds) for the MS subjects. Significant differences existed at the fovea between normal and clinically definite subjects but not between normal and probable. Correlational analyses indicated great functional changes in retinal sensitivity for the MS patients. Similar results were obtained between MS patients with and without optic neuritis. Discriminant analyses indicated that the red filter could correctly classify 86.27% of the normals and MS patients with few false positives or negatives. Log threshold difference values between the fovea and 30 degree nasal eccentricity were used to determine a threshold value which could separate normal profiles from MS profiles. The typical "swiss cheese" defects reported in the clinical literature were found only for the achromatic and blue filters. No irregular profiles were found for the red filter. A possible theoretical model based on the results was discussed. Limitations of the study as well as possible future research were also discussed.
Axial $N\to Δ(1232)$ and $N \to N^{\star}(1440)$ transition form factors
Creators: name: Barquilla-Cano, D.
name: Buchmann, A. J.
name: Hernandez, E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We calculate the axial $N\to Δ(1232)$ and $N\to N^{\star}(1440)$ transition form factors in a chiral constituent quark model. As required by the partial conservation of axial current ($PCAC$) condition, we include one- and two-body axial exchange currents. For the axial $N\to Δ(1232)$ form factors we compare with previous quark model calculations that use only one-body axial currents, and with experimental analyses. The paper provides the first calculation of all weak axial $N\to N^{\star}(1440)$ form factors. Our main result is that exchange currents are very important for certain axial transition form factors. In addition to improving our understanding of nucleon structure, the present results are relevant for neutrino-nucleus scattering cross section predictions needed in the analysis of neutrino mixing experiments.
description: 28 latex pages, 9 figures, 6 tables. In Fig. 8 the curve labelled "Total" has been corrected
Baryon vector and axial content up to the 7Q component
Creators: name: Lorcé, Cédric
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We have used the light-cone formulation of Chiral-Quark Soliton Model to investigate the vector and axial content of octet, decuplet and the hypothetical antidecuplet in the flavor SU(3) symmetry limit. We have extended previous works by computing the 7Q contribution to vector and axial charges for the octet and antidecuplet but stayed at the 5Q sector for the decuplet where the full computation needs much more time. As expected the 7Q component has a weaker impact on the quantities but still changes them by a few percent. We give also a detailed decomposition of those charges into flavor, valence quark, sea quark and antiquark contributions. Many of them are of course not (yet) measured or estimated and constitute then a theoretical estimation. Among the different interesting observations made in this work are the explicit quadrupole deformation of decuplet baryons due to the pion field and the sum of quark spins larger than the pentaquark one.
description: 34 pages, 7 figures and 17 tables, revised and more explicit version
Adaptive complexity regularization for linear inverse problems
Creators: name: Loubes, Jean-Michel
name: Ludeña, Carenne
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62G05; 34K29 (Primary)

description: We tackle the problem of building adaptive estimation procedures for ill-posed inverse problems. For general regularization methods depending on tuning parameters, we construct a penalized method that selects the optimal smoothing sequence without prior knowledge of the regularity of the function to be estimated. We provide for such estimators oracle inequalities and optimal rates of convergence. This penalized approach is applied to Tikhonov regularization and to regularization by projection.
description: Published in at http://dx.doi.org/10.1214/07-EJS115 the Electronic Journal of Statistics (http://www.i-journals.org/ejs/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Light Management in Thin Crystalline Silicon Solar Cells
Creators: name: Stensrud Marstein, E.S.
name: Krogh Selj, J.H.
name: Gjessing, J.
name: Haug, H.
name: Sudbø, A.
Publisher: name: WIP
Year: 2012
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Silicon Solar Cell Improvements

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 2049-2052
description: In order to reduce the costs of solar cells, there is a strong drive towards the use of thinner absorber
materials. Crystalline silicon materials have already proven highly attractive as absorbers in mass produced, low cost and
efficient solar cells. However as absorbers become thinner, crystalline silicon solar cells increasingly suffer from optical
losses related to transmission, which again lead to losses in short circuit current density and efficiency. In this work,
recent developments of structures for managing light in co-planar, ultrathin crystalline silicon substrates made in our
research group are presented. We show that the light trapping can be dramatically enhanced in ultrathin crystalline silicon
wafers by incorporating periodic nanostructures on a solar cell rear side covered with a surface-passivating dielectric
material and a metal mirror. To allow for simplified module and solar cell processing with such structures, we have
aimed at developing a co-planar solar cell structure. Unfortunately, without proper measures, the resulting increases in
front side reflectance will cancel out any gain in light trapping. We will therefore also show that a multilayer thin film
anti-reflection coating (ARC) structure with properly designed gradients in refractive index can sufficiently reduce front
side reflection in a solar cell and module environment.
Seeking Quality Diversity in Evolutionary Co-design of Morphology and Control of Soft Tensegrity Modular Robots
Creators: name: Zardini, Enrico
name: Zappetti, Davide
name: Zambrano, Davide
name: Iacca, Giovanni
name: Floreano, Dario
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: Designing optimal soft modular robots is difficult, due to non-trivial interactions between morphology and controller. Evolutionary algorithms (EAs), combined with physical simulators, represent a valid tool to overcome this issue. In this work, we investigate algorithmic solutions to improve the Quality Diversity of co-evolved designs of Tensegrity Soft Modular Robots (TSMRs) for two robotic tasks, namely goal reaching and squeezing trough a narrow passage. To this aim, we use three different EAs, i.e., MAP-Elites and two custom algorithms: one based on Viability Evolution (ViE) and NEAT (ViE-NEAT), the other named Double Map MAP-Elites (DM-ME) and devised to seek diversity while co-evolving robot morphologies and neural network (NN)-based controllers. In detail, DM-ME extends MAP-Elites in that it uses two distinct feature maps, referring to morphologies and controllers respectively, and integrates a mechanism to automatically define the NN-related feature descriptor. Considering the fitness, in the goal-reaching task ViE-NEAT outperforms MAP-Elites and results equivalent to DM-ME. Instead, when considering diversity in terms of "illumination" of the feature space, DM-ME outperforms the other two algorithms on both tasks, providing a richer pool of possible robotic designs, whereas ViE-NEAT shows comparable performance to MAP-Elites on goal reaching, although it does not exploit any map.
description: To be published in the proceedings of ACM Genetic and Evolutionary Computation Conference (GECCO) 2021
PV Module Corrosion from Ammonia and Salt Mist – Experimental Study with Full-Size Modules
Creators: name: Mathiak, G.
name: Althaus, J.
name: Menzler, S.
name: Lichtschläger, L.
name: Herrmann, W.
Publisher: name: WIP
Year: 2012
Subjects: Components for PV Systems
PV Modules

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 3536-3540
description: PV modules installed near the coast or on farm rooftops must withstand intensified corrosive environments.
For the environmental simulation of full-size modules, we developed and qualified two test chambers with salt mist and
ammonia gas atmosphere. The tests in the salt mist chamber follow the IEC 61701 standard, mainly with severity 6 (duration:
56 days). The standard IEC 62716 for ammonia testing is still under development in IEC TC 82. In both chambers,
examinations of commercially available modules revealed no major failures inside the junction box (bypass diode test) or in
insulation and electrical performance. The surfaces of the anodised aluminium frame and the anti-reflective coatings of the
glass were slightly affected. One potentially critical finding in the ammonia test was small pores 10 μm in diameter in the
backsheet. Brass and polycarbonate are sensitive to ammonia gas, so that samples of these materials can be used for
benchmarking the chamber test with degradation in an agricultural environment.
Protestant funeral music and rhetoric in seventeenth-century Germany : a musical-rhetorical examination of the printed sources
Creators: name: Johnston, Gregory Scott
Publisher: name: University of British Columbia
Year: 2010

description: The present thesis is an investigation into the musical rhetoric of Protestant funeral music in seventeenth-century Germany. The study begins with an exposition on the present state of musicological inquiry into occasional music in the Baroque, focusing primarily on ad hoc funeral music. Because funeral music is not discussed in any of the basic music reference works, a cursory overview of existing critical studies is included. The survey of this literature is followed by a brief discussion of methodological obstacles and procedure with regard to the present study. Chapter Two comprises a general discussion of Protestant funeral liturgy in Baroque Germany. Although numerous examples of the Divine Service in the Lutheran Church have survived the seventeenth century, not a single order of service for the funeral liturgy from the period seems to exist. This chapter provides both the social and extra-liturgical background for the music as well as a plausible Lutheran funerary liturgy based on documents from the period and modern studies. Prosopopoeia, the rhetorical personification of the dead, is the subject of Chapter Three. After examining the theoretical background of this rhetorical device, from Roman Antiquity to the German Baroque, the trope is examined in the context of funerary sermonic oratory. The discussion of oratorical rhetoric is followed by an investigation into the musical application of the concept of prosopopoeia in various styles of funerary composition, from simple cantional-style works to compositions in which the personified deceased assumes certain physical dimensions. Chapter Four includes an examination of various other musical-rhetorical figures effectively employed in funeral music. Also treated in this chapter are musica1-rhetorical aspects of duple and triple metre, where triple metre in particular, depending on the text, can be understood figuratively, metaphorically or as a combination of both. As this chapter makes clear, owing to the perceived antithetical properties of metre and certain figures, musical rhetoric was often used to illustrate the distinction between this world and the next.
Complete inclusion of parity-dependent level densities in the statistical description of astrophysical reaction rates
Creators: name: Loens, Hans Peter
name: Langanke, Karlheinz
name: Martínez-Pinedo, Gabriel
name: Rauscher, Thomas
name: Thielemann, Friedrich-Karl
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Microscopic calculations show a strong parity dependence of the nuclear level density at low excitation energy of a nucleus. Previously, this dependence has either been neglected or only implemented in the initial and final channels of Hauser-Feshbach calculations. We present an indirect way to account for a full parity dependence in all steps of a reaction, including the one of the compound nucleus formed in a reaction. To illustrate the impact on astrophysical reaction rates, we present rates for neutron captures in isotopic chains of Ni and Sn. Comparing with the standard assumption of equipartition of both parities, we find noticeable differences in the energy regime of astrophysical interest caused by the parity dependence of the nuclear level density found in the compound nucleus even at sizeable excitation energies.
description: 7 figures, 7 pages
Multi-country stated preferences choice analysis for fresh tomatoes
Creators: name: De Salvo, Maria
name: Scarpa, Riccardo
name: Capitello, Roberta
name: Begalli, Diego
name: De Salvo, Maria
name: Scarpa, Riccardo
name: Capitello, Roberta
name: Begalli, Diego
Publisher: name: Unknown
Year: 2020
Subjects: subject: Consumer/Household Economics
subject: Mixed Logit Model
subject: Marginal Willingness-To-Pay
subject: WTP space
subject: preference space
subject: fresh tomato

description: In this study we investigate consumers’ preferences for fresh tomato attributes in four European countries by assessing and comparing Marginal Willingness-To-Pay (MWTP) estimates from panel Mixed Logit (MXL) models with utility specifications in the WTP-space. We performed an in-depth post-estimation inference to identify what attributes are the main determinants of fresh tomato purchases in each domestic market. We also assess the choice probabilities for tomatoes of various ori-gins and types to illustrate how these post-estimation inference can be used to inform strategies designed to increase the market shares of Italian fresh tomato exports in new markets and to consolidate positions in markets where Italian fresh tomatoes are already appreciated by local consumers.
Bogoliubov spectrum of a cigar shaped Fermi superfluid in an optical lattice at the BEC-BCS crossover
Creators: name: Bhattacherjee, Aranya B
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the Bogoliubov spectrum of an elongated Fermi superfluid confined in an one-dimensional superfluid along the Bose-Einstein-condensate (BEC)-Bardeen-Cooper-Schrieffer (BCS) crossover. We derive analytic expressions for the sound velocity, effective mass and the Bogoliubov excitation spectrum of the axial quasiparticles long the crossover based on the hydrodynamic theory. Our investigation reveal interesting signatures of BEC-BCS crossover in an optical lattice which deserve experimental investigation.
description: To appear in Journal of Physics B 2007
Drug-therapy networks and the predictions of novel drug targets
Creators: name: Spiro, Zoltan
name: Kovacs, Istvan A.
name: Csermely, Peter
Publisher: name: arXiv
Year: 2008
Subjects: subject: Molecular Networks (q-bio.MN)
subject: FOS: Biological sciences

description: Recently, a number of drug-therapy, disease, drug, and drug-target networks have been introduced. Here we suggest novel methods for network-based prediction of novel drug targets and for improvement of drug efficiency by analysing the effects of drugs on the robustness of cellular networks.
description: This is an extended version of the Journal of Biology paper containing 2 Figures, 1 Table and 44 references
Optical Identification of 15 Micron Sources in the AKARI Performance Verification Field toward the North Ecliptic Pole
Creators: name: Matsuhara, Hideo
name: Wada, Takehiko
name: Pearson, Chris P.
name: Oyabu, Shinki
name: Im, Myungshin
name: Imai, Koji
name: Takagi, Toshinobu
name: Kang, Eugene
name: Hwang, Narae
name: Jeong, Woong-Seob
name: Lee, Hyung Mok
name: Lee, Myung Gyoon
name: Pak, Soojong
name: Serjeant, Stephen
name: Nakagawa, Takao
name: Hanami, Hitoshi
name: Inami, Hanae
name: Onaka, Takashi
name: Fujishiro, Naofumi
name: Ishihara, Daisuke
name: Ita, Yoshifusa
name: Kataza, Hirokazu
name: Kim, Woojung
name: Matsumoto, Toshio
name: Murakami, Hiroshi
name: Ohyama, Youichi
name: Sakon, Itsuki
name: Tanabe, Toshihiko
name: Uemizu, Kazunori
name: Ueno, Munetaka
name: Watarai, Hidenori
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the results of optical identifications for 257 mid-infrared sources detected with a deep 15um survey over approximately 80 arcmin^2 area in the AKARI performance verification field near the North Ecliptic Pole. The 15um fluxes of the sources range from 1 mJy down to 40 uJy, approximately a half of which are below 100 uJy. Optical counterparts were searched for within a 2-3 arcsec radius in both the BVRi'z' catalog generated by using the deep Subaru/Suprime-cam field which covers one-third of the performance verification field, and the g'r'i'z' catalog based on observations made with MegaCam at CFHT. We found B-R and R-z' colours of sources with successful optical identifications are systematically redder than that of the entire optical sample in the same field. Moreover, approximately 40% of the 15um sources show colours R-L15>5, which cannot be explained by the spectral energy distribution (SED) of normal quiescent spiral galaxies, but are consistent with SEDs of redshifted (z>1) starburst or ultraluminous infrared galaxies. This result indicates that the fraction of the ultraluminous infrared galaxies in our faint 15um sample is much larger than that in our brighter 15um sources, which is consistent with the evolving mid-infrared luminosity function derived by recent studies based on the Spitzer 24um deep surveys. Based on an SED fitting technique, the nature of the faint 15um sources is further discussed for a selected number of sources with available K_s-band data.
Validating an Angular of Incidence Losses Model with Different PV Technologies and Soiling Conditions
Creators: name: Martín Chivelet, N.
name: Chenlo, F.
name: Mejuto, E.
name: Soriano, F.
name: Temprano, S.
name: Alonso-García, M.C.
Publisher: name: WIP
Year: 2012
Subjects: Components for PV Systems
PV Modules

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 3436-3438
description: The purpose of this work is to validate an analytical model for the angle of incidence losses in PV
modules, with different current photovoltaic (PV) technologies and soiling degrees. For that purpose it has been
developed an outdoor testing facility, with which the electrical characteristics of different current PV modules under
direct solar radiation at any incident angle can be measured. The experimental data of the angular losses have been
fitted to the analytical model, formerly developed by some of the authors, which describes the angular losses (AL) of
PV modules as a function of the angle of incidence of solar radiation. The model also considers the possible existence
of soiling on PV modules’ surfaces. As a result, the model has proven to be in good agreement with the data of all the
considered PV modules in the case of flat covers. The PV technology has not a significant influence on the angular
losses coefficient. The results improve the precision of energy rating models and will contribute to the understanding
and quantification of the soiling influence in PV plants. This work is funded by the Spanish national programme Plan
Nacional de I+D+i, project CALENER-FV (ENE2009-14333-C03-01).
High Performance Solar Cells Exceeding 17% Efficiency Based on Low Cost Solar Grade Silicon
Creators: name: Preis, P.
name: Díaz-Pérez, P.
name: Peter, K.
name: Tronstad, R.
name: Henriksen, B.R.
name: Enebakk, E.
name: Beringov, S.
name: Vlasiuk, M.
Publisher: name: WIP
Year: 2012
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Silicon Feedstock, Crystallisation and Wafering

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 1026-1030
description: To further establish solar grade silicon from metallurgical process route in the photovoltaic market it is crucial to demonstrate the material quality by reaching high cell efficiencies and thus enabling SoG-Si to be competitive to “traditional” poly-Si. In this work we present Elkem Solar Silicon (ESS™) based solar cells with
efficiencies exceeding 17% demonstrating the high feedstock quality and a fine tuned solar cell process, which was optimized in respect to efficient gettering. Investigations of LID behavior of both ESS™ and poly-Si solar cells show even lower losses in cell efficiency on the SoG-Si material, which was confirmed by low interstitial oxygen
concentrations measured using FTIR. Further experiments focused on improvements of the reverse current-voltage characteristics by applying different texturisation methods, which allow for similar cell efficiencies compared to the standard acidic iso-texturisation.
Nucleon to Pion Transition Distribution Amplitudes in a Light-Cone Quark Model
Creators: name: Pincetti, M.
name: Pasquini, B.
name: Boffi, S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We present a general representation for the nucleon distribution amplitudes and for the nucleon to pion transition distribution amplitudes in terms of light-cone wave functions. We apply our formalism to a light-cone constituent quark model giving some numerical results for both the classes of observables.
description: 8 pages, 2 figures and a table. Invited talk at `Transversity 2008', Ferrara, Italy, 28-31 May 2008
First Maidstone Clubhouse, Putting Match, 1892
Creators: name: (:Unas)
Publisher: name: Unknown
Year: 0
Subjects: Photographs
Photos
Historic buildings
East Hampton
Structures
Maidstone Club
Putting (Golf)
Croquet
Women

description: This image shows several women outside the first Maidstone Clubhouse in 1892 having a putting match or a game of croquet. This reproduction was made from its original which also resides in the Long Island Collection at the East Hampton Library and this copy was collected sometime from 1970 to 1982 as part of the East Hampton’s Heritage Photo Collection.
description: Images within East Hampton Heritage Photo Collection seem to have been taken or collected in relation to the East Hampton Heritage project, but not all of them were included in the final publication. Several photographer are included in this collection.
On the universality of the Discrete Nonlinear Schroedinger Equation
Creators: name: Fratalocchi, A.
name: Assanto, G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Optics (physics.optics)
subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: We address the universal applicability of the discrete nonlinear Schroedinger equation. By employing an original but general top-down/bottom-up procedure based on symmetry analysis to the case of optical lattices, we derive the most widely applicable and the simplest possible model, revealing that the discrete nonlinear Schroedinger equation is ``universally'' fit to describe light propagation even in discrete tensorial nonlinear systems and in the presence of nonparaxial and vectorial effects.
description: 6 Pages, to appear in Phys. Rev. A
Tensor Coordinates in Noncommutative Mechanics
Creators: name: Amorim, Ricardo
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A consistent classical mechanics formulation is presented in such a way that, under quantization, it gives a noncommutative quantum theory with interesting new features. The Dirac formalism for constrained Hamiltonian systems is strongly used, and the object of noncommutativity ${\mathbf θ}^{ij}$ plays a fundamental rule as an independent quantity. The presented classical theory, as its quantum counterpart, is naturally invariant under the rotation group $SO(D)$.
description: 12 pages, Latex
MACSEN-PV Project: Platform for Technical Cooperation in the Field of the Integration of Renewable Energies in the Power Supply
Creators: name: Linares, A.
name: Llarena, E.
name: Montes, C.
name: González, O.
name: Molina, D.
name: Pío, A.
name: Marechal, L.
name: Friend, M.
name: Cendagorta, M.
name: Alonso, M.
name: Pérez, E.
name: Hernández-Abad, M.
name: López, E.
name: Sylla, E.H.
name: Wade, C.
name: Youm, I.
name: Niang, A.T.
Publisher: name: WIP
Year: 2012
Subjects: PV - a Major Electricity Source
PV Globalisation, Policies and Administrative Barriers

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 4745-4748
description: The MACSEN-PV project, financed by the PCT MAC 2007 - 2013 Program (2nd Call – Cooperation
with third countries), is conceived as a platform for technical cooperation between the Canary Islands and Senegal in
the field of the integration of renewable energies in the power supply. Its main objective is to improve the capacity of
public authorities and local technicians to support the implementation of renewable energies as part of the power
supply in these regions.
The main expected result will be the establishment of a new legislation and energy planning that will contribute
significantly to the socioeconomic development of the participating regions, reducing their dependence on foreign
energy and fossil fuels, and the strengthening of their respective power grids.
To ensure the strengthening of the local human resources technical capacities (technology transfer and technical
‘know-how’), training activities will be undertaken, in order to prepare Senegalese regions to supply, design, install
and maintain this kind of installations.
During the development of the project, a pilot 3 kW grid connected PV plant (the first of its kind in Senegal) will be
installed at the CERER main facilities in Dakar, which is going to serve both as a formative as well as demonstrative
technology platform, together with an example of transnational cooperation between an European ultraperiferic
region with a neighbouring country.
This project was presented in the Regional Workshop at the ECOWAS Solar Energy Initiative –ESEI, which took
place in Dakar, Senegal, from the 18th to the 21st of October in 2010. The ECOWAS program is an initiative that
leads and coordinates the installation of PV facilities in the Occidental Africa area.
The present paper describe the agreements achieved as well as the obstacles and problems found, together with the
advances and solutions adopted during the operative first stages of the project, considered as a practice guide not only
for Senegal but also for its neighboring regions.
Long-term Value of Flexibility from Flexible Assets in Building Operation
Creators: name: Thorvaldsen, Kasper Emil
name: Korpås, Magnus
name: Farahmand, Hossein
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: In this work, we investigate how flexible assets within a residential building influence the long-term impact of operation. We use a measured-peak grid tariff (MPGT) that puts a cost on the highest single-hour peak import over the month. We apply a mathematical model of a Home Energy Management System (HEMS) together with Stochastic Dynamic Programming (SDP), which calculates the long-term impact of operating as a non-linear expected future cost curve (EFCC) from the end of the scheduling period to the start. The proposed model is applied to a case study for a Norwegian building with smart control of a battery energy storage system (BESS), Electric vehicle (EV) charging and space heating (SH). Each of the flexible assets are investigated individually with MPGT and for an energy-based grid tariff. The results showed that EV charging has the highest peak-power impact in the system, decreasing the total electricity cost by 14.6% with MPGT when controllable compared to a reference case with passive charging. It is further shown how the EFCC helps achieve optimal timing and level of the peak demand, where it co-optimizes both real-time pricing and the MPGT.
description: This paper was sent to the International Journal of Electrical Power & Energy Systems early February 2021. Currently under review
Observational Characteristics of the First Protostellar Cores
Creators: name: Omukai, K.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: First protostellar cores are young stellar objects in the earliest evolutionary stage. They are hydrostatic objects formed soon after the central portions of star-forming cores become optically thick to dust emission. We consider their characteristics in the emitted radiation, and discuss their evolution with increasing mass of the cores. Particular attention is paid to detailed radiative and chemical processes in the postshock relaxation layer located at the surface of the core, where the majority of radiation is emitted. Most of the radiation is originally emitted in the dust continuum in mid-infrared wavelength (~10-30 micron), which reprocessed to far-infrared with ~100-200 micron. Although some fraction (~0.1) of the radiation energy is emitted in the H2O lines at the accretion shock, most is absorbed and reemitted in the dust continuum in the envelope. The H2O lines account for at most ~1/100 of the observed luminosity. If a cavity is present in the envelope due to outflow or rotation, the dust and H2O line emission in the mid-infrared wavelength from the shock can be observed directly, or as a reflection nebula. Among forthcoming observational facillities, SPICA is the most suitable for detecting either direct or processed radiation from first-core objects.
description: To appear in PASJ vol.59
Not my cup of coffee: Farmers’ preferences for coffee variety traits – Lessons for crop breeding in the age of climate change
Creators: name: Meressa, Abrha Megos
name: Navrud, Stale
name: Meressa, Abrha Megos
name: Navrud, Stale
Publisher: name: Unknown
Year: 2020
Subjects: subject: Consumer/Household Economics
subject: Coffee
subject: traits
subject: crop breeding
subject: climate change
subject: discrete choice experiment
subject: willingness-to-pay

description: The advent of biotechnology and conservation of genetic resources hold promise to improve traits to meet the challenges to coffee growing from climate change. Developing new varieties by integrating traits in high demand by farmers could greatly increase farmers’ adoption of new varieties. This study aims to inform breeding priority setting by examining farmers’ preferences for coffee traits. A Discrete Choice Experiment was applied to smallholder farmers in northern Ethiopia to map their willingness-to-pay for improvements in four coffee traits: i) yield, ii) weather tolerance, iii) disease resistance, and iv) the maturity period. The traits are important to the farmers in their choice of coffee varieties. They prefer weather tolerant and disease resistant varieties; implying that they prefer yield stability over high yielding and early maturing varieties. Education level, access to irrigation and farmers’ experience in coffee farming explain the preference heterogeneity across farmers. These results suggest that breeding programs should give priority to yield stability in order to increase farmers’ adoption of new varieties, and secure in situ preservation of these traits. Thus, ex situ conservation programs are needed for early maturing and high yielding varieties, which farmers do not give priority to maintain in their own fields. This would improve climate resilience of coffee farming, and at the same time conserve the Arabica coffee genetic heritage of Ethiopia.
Functional principal components analysis via penalized rank one approximation
Creators: name: Huang, Jianhua Z.
name: Shen, Haipeng
name: Buja, Andreas
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62G08, 62H25 (Primary) 65F30 (Secondary)

description: Two existing approaches to functional principal components analysis (FPCA) are due to Rice and Silverman (1991) and Silverman (1996), both based on maximizing variance but introducing penalization in different ways. In this article we propose an alternative approach to FPCA using penalized rank one approximation to the data matrix. Our contributions are four-fold: (1) by considering invariance under scale transformation of the measurements, the new formulation sheds light on how regularization should be performed for FPCA and suggests an efficient power algorithm for computation; (2) it naturally incorporates spline smoothing of discretized functional data; (3) the connection with smoothing splines also facilitates construction of cross-validation or generalized cross-validation criteria for smoothing parameter selection that allows efficient computation; (4) different smoothing parameters are permitted for different FPCs. The methodology is illustrated with a real data example and a simulation.
description: Published in at http://dx.doi.org/10.1214/08-EJS218 the Electronic Journal of Statistics (http://www.i-journals.org/ejs/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Finance 4.0: Design principles for a value-sensitive cryptoecnomic system to address sustainability
Creators: name: Ballandies, Mark C.
name: Dapp, Marcus M.
name: Degenhart, Benjamin A.
name: Helbing, Dirk
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computers and Society (cs.CY)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences
subject: A.1; D.2; H.4; J.4; K.4.2; K.4.3
subject: 00-01

description: Cryptoeconomic systems derive their power but can not be controlled by the underlying software systems and the rules they enshrine. This adds a level of complexity to the software design process. At the same time, such systems, when designed with human values in mind, offer new approaches to tackle sustainability challenges, that are plagued by commons dilemmas and negative external effects caused by a one-dimensional monetary system. This paper proposes a design science research methodology with value-sensitive design methods to derive design principles for a value-sensitive socio-ecological cryptoeconomic system that incentivizes actions toward sustainability via multi-dimensional token incentives. These design principles are implemented in a software that is validated in user studies that demonstrate its relevance, usability and impact. Our findings provide new insights on designing cryptoeconomic systems. Moreover, the identified design principles for a value-sensitive socio-ecological financial system indicate opportunities for new research directions and business innovations.