cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Practical Limits in the Sensitivity-Linearity Trade-off for Radio Telescope Front Ends in the HF and VHF-low Bands
Creators: name: Tillman, R. H.
name: Ellingson, S. W.
name: Brendler, J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Radio telescope front ends must have simultaneously low noise and sufficiently-high linearity to accommodate interfering signals. Typically these are opposing design goals. For modern radio telescopes operating in the HF (3-30 MHz) and VHF-low (30-88 MHz) bands, the problem is more nuanced in that front end noise temperature may be a relatively small component of the system temperature, and increased linearity may be required due to the particular interference problems associated with this spectrum. In this paper we present an analysis of the sensitivity-linearity trade off at these frequencies, applicable to existing commercially-available monolithic microwave integrated circuit (MMIC) amplifiers in single-ended, differential, and parallelized configurations. This analysis and associated findings should be useful in the design and upgrade of front ends for low frequency radio telescopes. The analysis is demonstrated explicitly for one of the better-performing amplifiers encountered in this study, the Mini-Circuits PGA-103, and is confirmed by hardware measurements. We also present a design based on the Mini-Circuits HELA-10 amplifier, which is better-suited for applications where linearity is a primary concern.
description: Published. 19 pages, 21 figures, 1 table
Magnetic field induced dynamical instabilities in an anti-ferromagnetic spin-1 Bose-Einstein condensate
Creators: name: Pu, Zhengguo
name: Zhang, Jun
name: Yi, Su
name: Wang, Dajun
name: Zhang, Wenxian
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We theoretically investigate four types of dynamical instability, in particular the periodic and oscillatory type $I_O$, in an anti-ferromagnetic spin-1 Bose-Einstein condensate in a nonzero magnetic field, by employing the coupled-mode theory and numerical method. This is in sharp contrast to the dynamical stability of the same system in zero field. Remarkably, a pattern transition from a periodic dynamical instability $I_O$ to a uniform one $III_O$ occurs at a critical magnetic field. All the four types of dynamical instability and the pattern transition are ready to be detected in $^{23}$Na condensates within the availability of the current experimental techniques.
description: 6 pages, 4 eps figures. To appear in Phys. Rev. A
General properties of the Foldy-Wouthuysen transformation and applicability of the corrected original Foldy-Wouthuysen method
Creators: name: Silenko, Alexander J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 81-XX

description: General properties of the Foldy-Wouthuysen transformation which is widely used in quantum mechanics and quantum chemistry are considered. Merits and demerits of the original Foldy-Wouthuysen transformation method are analyzed. While this method does not satisfy the Eriksen condition of the Foldy-Wouthuysen transformation, it can be corrected with the use of the Baker-Campbell-Hausdorff formula. We show a possibility of such a correction and propose an appropriate algorithm of calculations. An applicability of the corrected Foldy-Wouthuysen method is restricted by the condition of convergence of a series of relativistic corrections.
description: 19 pages
Novel method for measuring anatomical dead space as a potential means of assessing airway distensibility
Creators: name: Jones, David Peter
Publisher: name: Monash University
Year: 2019
Subjects: subject: 110299 Cardiorespiratory Medicine and Haematology not elsewhere classified
subject: FOS: Clinical medicine

description: This thesis describes the development and application of a new, noninvasive method for providing in-vivo measurements of anatomical dead space (VD), and its components in cooperative human subjects. It also investigates their relationships with changing lung volume (airway distensibility, AVD) in normal versus asthmatic subjects. The computerised method for measuring VD was based on CO2 washout, with tidal breathing, at discrete, or progresnively increasing or decreasing lung volumes between TLC or RV. Absolute lung volume (TLC or RV), determined by body plethysmography, was used in the computer calculation of AVD as the reference volume to obtain end-inspiratory lung volume for each measurement of anatomical VD. This new method provided rapid measurements of VD, with duplicate measurements taking 10-15 minutes to complete, even in untrained subjects.[…]
Impact of a-Si:H Structural Properties on Annealing Behavior and Voc of a-Si:H/c-Si Heterojunction Solar Cells
Creators: name: Schulze, T.F.
name: Mingirulli, N.
name: Leendertz, C.
name: Beushausen, H.N.
name: Rech, B.
name: Korte, 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; 1276-1281
description: Thin undoped amorphous silicon [(i)a-Si:H] is used as passivating interlayer in a-Si:H/c-Si
heterojunction solar cells. We analyze the role of its microscopic structure in determining the c-Si passivation and
thus the open-circuit voltage of the device. It is shown that while the initial density of interface defects Dit is
determined by the local and non-equilibrated interface structure, the Dit of annealed samples is defined by the bulk a-
Si:H network strain (characterized by the Urbach energy E0V), as probed by photoelectron spectroscopy. Thus it is
shown that the a-Si:H/c-Si interface does not possess unique properties but probes the a-Si:H bulk defect density.
Further, in analyzing the lifetime degradation observed after forming (p/i)a-Si:H emitter structures we find indication
that defect equilibration plays an important role in determining the final Dit in stack structures. The Urbach energy of
the buffer layer is shown to determine the final density of defects upon shifting the Fermi level at the interface,
comparable to the defect pool found in thick a-Si:H, thus being a crucial material parameter for device optimization.
Performance Comparison Between BP Solar Mono2TM and Traditional Multicrystalline Modules
Creators: name: Cunningham, D.
name: Parr, A.
name: Posbic, J.
name: Poulin, B.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Components for PV Systems
PV Modules

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 2829-2833
description: In 2006, BP Solar announced the breakthrough of a new process for ingot growth that significantly increased cell performance over traditional multi-crystalline based silicon solar cells. This new technique, named Mono2™, is a great advance in casting technology and builds on the pioneering work conducted by BP Solar scientists who first introduced multi-crystalline growth techniques more than 25 years ago. Mono2TM enables the higher efficiencies of mono crystal based wafers while incorporating the benefits of cast technology such as high silicon yield, low light induced degradation (LID), low capital intensity, and scale.
Product incorporating cells from this process were installed in a 0.5MW grid connected system in Chino, California, USA during 2007. Mono2™ product was installed alongside standard multi-crystalline modules for the purpose of direct comparison.
This paper reports on data such as LID, low light level responsiveness and outdoor performance at the module and the system level. Early results from these activities show that product made with the Mono2™ wafer process affords significant improvements in energy generation (>6%) over traditional cast multi-crystalline silicon processes. Reduced defect densities and higher carrier life times contribute to these gains.
Design and Monitoring of an Improved Test Reference Environment for the Evaluation of BIPV Systems
Creators: name: Lodi, C.
name: Cipriano, J.
name: Bloem, J.J.
name: Chemisana, D.
Publisher: name: WIP-Munich
Year: 2010
Subjects: PV Systems
PV Components for Buildings, PV Integration in Buildings

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 5135-5140
description: The objective of the present work is to advance in the knowledge of double-skin photovoltaic ventilated
façades (DSPVF) using an improved version of the Test Reference Environment (TRE) [1] which has been developed by the
EU Joint Research Centre of Ispra. One of the most relevant improvements from the original version is the new support
structure which allows several inclinations of the PV module, varying from the horizontal to the vertical. The electrical
production and the temperature of the ventilated PV panel placed at the TRE-L is also compared with the performance of
other two identical PV modules which represent respectively the worst and the best condition: one reference module is fully
insulated and the other one is leaved under free-rack conditions.
As a first attempt, a single glass-tedlar PV module has been analysed. Several experiments, at different inclinations and
ventilation velocities, have been performed and sensitivity analysis results are reported.
Parametrising Epoch of Reionization foregrounds: A deep survey of low-frequency point-source spectra with the MWA
Creators: name: Offringa, A. R.
name: Trott, C. M.
name: Hurley-Walker, N.
name: Johnston-Hollitt, M.
name: McKinley, B.
name: Barry, N.
name: Beardsley, A. P.
name: Bowman, J. D.
name: Briggs, F.
name: Carroll, P.
name: Dillon, J. S.
name: Ewall-Wice, A.
name: Feng, L.
name: Gaensler, B. M.
name: Greenhill, L. J.
name: Hazelton, B. J.
name: Hewitt, J. N.
name: Jacobs, D. C.
name: Kim, H. -S.
name: Kittiwisit, P.
name: Lenc, E.
name: Line, J.
name: Loeb, A.
name: Mitchell, D. A.
name: Morales, M. F.
name: Neben, A. R.
name: Paul, S.
name: Pindor, B.
name: Pober, J. C.
name: Procopio, P.
name: Riding, J.
name: Sethi, S. K.
name: Shankar, N. U.
name: Subrahmanyan, R.
name: Sullivan, I. S.
name: Tegmark, M.
name: Thyagarajan, N.
name: Tingay, S. J.
name: Wayth, R. B.
name: Webster, R. L.
name: Wyithe, J. S. B.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Experiments that pursue detection of signals from the Epoch of Reionization (EoR) are relying on spectral smoothness of source spectra at low frequencies. This article empirically explores the effect of foreground spectra on EoR experiments by measuring high-resolution full-polarization spectra for the 586 brightest unresolved sources in one of the MWA EoR fields using 45 h of observation. A novel peeling scheme is used to subtract 2500 sources from the visibilities with ionospheric and beam corrections, resulting in the deepest, confusion-limited MWA image so far. The resulting spectra are found to be affected by instrumental effects, which limit the constraints that can be set on source-intrinsic spectral structure. The sensitivity and power-spectrum of the spectra are analysed, and it is found that the spectra of residuals are dominated by PSF sidelobes from nearby undeconvolved sources. We release a catalogue describing the spectral parameters for each measured source.
description: Accepted for publication in MNRAS. 15 pages, 16 figures. Catalogue of sources externally available as CSV file
Calibration of Gamma-ray Burst Polarimeter POLAR
Creators: name: Xiao, H. L.
name: Hajdas, W.
name: Bao, T. W.
name: Batsch, T.
name: Bernasconi, T.
name: Cernuda, I.
name: Chai, J. Y.
name: Dong, Y. W.
name: Gauvin, N.
name: Kole, M.
name: Kong, M. N.
name: Kong, S. W.
name: Li, L.
name: Liu, J. T.
name: Liu, X.
name: Marcinkowski, R.
name: Orsi, S.
name: Pohl, M.
name: Produit, N.
name: Rapin, D.
name: Rutczynska, A.
name: Rybka, D.
name: Shi, H. L.
name: Song, L. M.
name: Sun, J. C.
name: Szabelski, J.
name: Wu, B. B.
name: Wang, R. J.
name: Wen, X.
name: Xu, H. H.
name: Zhang, L.
name: Zhang, L. Y.
name: Zhang, S. N.
name: Zhang, X. F.
name: Zhang, Y. J.
name: Zwolinska, A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Gamma Ray Bursts (GRBs) are the strongest explosions in the universe which might be associated with creation of black holes. Magnetic field structure and burst dynamics may influence polarization of the emitted gamma-rays. Precise polarization detection can be an ultimate tool to unveil the true GRB mechanism. POLAR is a space-borne Compton scattering detector for precise measurements of the GRB polarization. It consists of a 40$\times$40 array of plastic scintillator bars read out by 25 multi-anode PMTs (MaPMTs). It is scheduled to be launched into space in 2016 onboard of the Chinese space laboratory TG2. We present a dedicated methodology for POLAR calibration and some calibration results based on the combined use of the laboratory radioactive sources and polarized X-ray beams from the European Synchrotron Radiation Facility. They include calibration of the energy response, computation of the energy conversion factor vs. high voltage as well as determination of the threshold values, crosstalk contributions and polarization modulation factors.
description: 2015 IEEE NSS conference proceedings
Supplementary document for Asymmetric phase modulation of light with parity-symmetry broken metasurfaces - 6434143.pdf
Creators: name: Mikheeva, Elena
name: Colom, Remi
name: Achouri, Karim
name: Overvig, Adam
name: Binkowski, Felix
name: Duboz, Jean-Yves
name: Cueff, Sebastien
name: Fan, Shanhui
name: Burger, Sven
name: Alu, Andrea
Publisher: name: Optica Publishing Group
Year: 2023
Subjects: Photonics, Optoelectronics and Optical Communications
Optical Physics not elsewhere classified

description: detailed derivations of equations with temporal coupled mode theory, simulation of silicon cones metasurface response in a wider parameters range
When opposites repel: from metastability to extended chiral spin textures in spin ice with short-range topological-defect interactions
Creators: name: Udagawa, Masafumi
name: Jaubert, Ludovic D. C.
name: Castelnovo, Claudio
name: Moessner, Roderich
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the interplay of topological bottlenecks and energetic barriers to equilibration in a Coulomb spin liquid where a short-range energetic coupling between defects charged under an emergent gauge field supplements their entropic long-range Coulomb interaction. This work is motivated by the prevalence of memory effects observed across a wide range of geometrically frustrated magnetic materials, possibly including the spontaneous Hall effect observed in Pr2Ir2O7. Our model is canonical spin-ice model on the pyrochlore lattice, where farther-neighbour spin couplings give rise to a nearest-neighbor interaction between topological defects which can easily be chosen to be unnatural or not, i.e. attractive or repulsive between defects of equal gauge charge. Among the novel features of this model are the following. After applying a field quench, a rich dynamical approach to equilibrium emerges, dominated by multi-scale energy barriers responsible for long-lived magnetization plateaux. These even allow for the metastability of a "fragmented" spin liquid, an elusive regime where partial order co-exists with a spin liquid. Perhaps most strikingly, the attraction produces clusters of defects whose stability is due to a combination of energetic barriers for their break-up and proximity of opposite charges along with an entropic barrier generated by the topological requirement of annihilating a defect only together with an oppositely charged counterpart. These clusters may take the form of a "jellyfish" spin texture, comprising an arrangement of same-sign gauge-charges, centered on a hexagonal ring with branches of arbitrary length. The ring carries a clockwise or counterclockwise circular flow of magnetisation. This emergent toroidal degrees of freedom provides a possibility for time reversal symmetry breaking with possible relevance to the spontaneous Hall effect observed in Pr2Ir2O7.
description: 27 pages, 31 figures
NORIA Data Management Software for PV Modules Characterization in the Outdoor ESTER Test Facility
Creators: name: Spena, A.
name: Cornaro, C.
name: Traini, P.L.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Components for PV Systems
PV Modules

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 2846-2849
description: The software named Noria, conceived and realized on purpose by the Environmental Technical Physics group of the University of Rome Tor Vergata, is presented. Noria has been built to manage the data coming from the outdoor ESTER test facility for PV modules of various technologies. In the facility, irradiance and meteorological parameters as well as maximum power of the PV modules under test are collected every minute while every ten minutes complete IV curves are traced and stored in the database. This large amount of data requires a powerful software tool structured with high flexibility architecture and user friendly interface in order to retrieve the information needed. The basic idea was to reproduce via software the PV modules arrangements on the outdoor stands during the monitoring activities. The information given by the stand configurations are used to retrieve the data. Logical queries allow to filter and extract data according to a wide variety of possibility selecting by radiation level, wind intensity, PV modules model, PV modules current or voltage, date and time etc.
Impact of Compensated Solar-Grade Silicon on Czochralski Silicon Wafers and Solar Cells
Creators: name: Rein, S.
name: Kwapil, W.
name: Broisch, J.
name: Emanuel, G.
name: Spitz, M.
name: Reis, I.
name: Weil, A.
name: Biro, D.
name: Glatthaar, M.
name: Soiland, A.-K.
name: Enebakk, E.
name: Tronstad, R.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Mono- and Multicrystalline Silicon Materials and Cells

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 1140-1147
description: Alternative feedstock production routes avoiding the gaseous phase during the purification of the
silicon result in significantly increased boron and phosphorus concentrations, which leads to compensation effects in
the material. We studied Cz crystals with different mix-in ratios of compensated SoG silicon feedstock from Elkem
Solar (100%, 50%, 33% and 0%) regarding the impurity content, the specific resistivity, the effective carrier lifetime,
the Cz defect formation and the resulting solar cell parameters of cells processed in an industrial standard screenprinting
process. We find that the compensated material is dominantly influenced by the intrinsic metastable Cz
defect which is proportional to the net-doping concentration. It is demonstrated that at least up to a mix-in ratio of
33% there are no feedstock-dependent performance losses. There is potential for higher mix-in ratio for this
feedstock by lowering the net acceptor dopant concentration.
High Efficiency Industrial Silicon Solar Cells on Silicon Mono2TM Cast Material Using Dielectric Passivation and Local BSF
Creators: name: Prajapati, V.
name: Cornagliotti, E.
name: Russell, R.
name: Fernandez, J.M.
name: Clark, R.F.
name: Stoddard, N.
name: Choulat, P.
name: John, J.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Mono- and Multicrystalline Silicon Materials and Cells

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 1171-1174
description: This work evaluates the application of an advanced solar cell process that features a dielectric rear
surface passivation as well as a local BSF on BP Solar’s Mono2 TM material. The Mono2 TM material is a novel type of
Si material for solar cell application and is obtained using a seeded directional solidification technique [1], producing
wafers that are free of grain boundaries, or in some cases have small areas with crystal grains. It is a promising
alternative to traditional high cost Czochralski and float-zone material. The applied solar cell process features a rear
passivation stack of deposited oxide/PECVD SiN as well as local Al-alloyed contacts [2]. The target is high
efficiency at low cost which is foreseeable with the combination of the presented advanced Si material and the
proposed advanced solar cell process. Cell results obtained in this work are up to 18% efficient for the best Mono2 TM
and an average of 17.2% for a batch of 41 cells all of which have a final thickness of 130 μm and area of 156 cm2.
Formation of the Double Neutron Star System PSR J1930$-$1852
Creators: name: Shao, Yong
name: Li, Xiang-Dong
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The spin period (185 ms) and period derivative ($1.8\times10^{-17}\,\rm s\,s^{-1}$) of the double neutron star (DNS) system PSR J1930$-$1852 recently discovered indicate that the pulsar was mildly recycled through the process of Roche-lobe overflow. This system has the longest orbital period (45 days) of the known DNS systems, and can be formed from a helium star-NS binary if the initial mass of the helium star was $ \lesssim 4.0M_{\odot} $; otherwise the helium star would never fill its Roche-lobe \citep{t15}. At the moment of the supernova explosion, the mass of the helium star was $ \lesssim3.0M_{\odot} $. We find that the probability distribution of the velocity kick imparted to the new-born neutron star has a maximum at about $30 \,\rm km\,s^{-1}$ (and a tail up to $ 260 \,\rm km\,s^{-1}$), indicating that this NS most probably received a low kick velocity at birth.
description: 9 pages, 4 figures, accepted for publication in ApJ
High Efficiency P-SHJ Solar Cells with Hydrogenated Amorphous Silicon Oxide Front Intrinsic Buffer Layer
Creators: name: Rattanapan, S.
name: Watahiki, T.
name: Miyajima, S.
name: Yamada, A.
name: Konagai, M.
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; 1282-1285
description: This contribution reports the recent work performed on a development of p-SHJ solar cells with a-
SiOx:H(i) buffer layer between a-Si:H(n) and c-Si(p) (front side), instead of a-Si:H(i) buffer layer. The aim of this
work is to improve the open circuit voltage (VOC) by decreasing Dit with a high optical band gap, using a-SiOx:H(i)
layer. Furthermore, the experimentally on the effect on CO2/SiH4 ratio in a-SiOx:H(i) buffer layer were investigated.
The p-SHJ solar cell performance clearly improved with increasing the CO2/SiH4 ratio in a-SiOx:H(i) buffer layers
from 0 to 0.33. This is due to the decrease in Dit at the a-SiOx:H(i)/c-Si(p) front interface, probably by avoiding the
formation of the defective interfacial layer. With this buffer layer concept, a high open circuit voltage of 659 mV with
an active area efficiency as high as 18.5% for a-Si:H(n+)/a-SiOx:H(i)/c-Si(p)/μc-SiOx:H(p+) solar cell structure has
been achieved.
Understanding structure and activation of GLP-1R
Creators: name: ZHANG, XIN
Publisher: name: Monash University
Year: 2021
Subjects: Pharmaceutical sciences
Biochemistry and cell biology not elsewhere classified
Structural biology (incl. macromolecular modelling)

description: In this thesis, single particle cryo-electron microscopy was used to determine molecular details of the structure and dynamic motion of a major diabetes and obesity therapeutic target, the GLP-1 receptor. Studying structures of the receptor bound to both clinically approved and tool activators with distinct properties, the work provided critical insight into how current drugs work. This thesis work will be instrumental in development of the next generation of drugs targeting the GLP-1 receptor.
A Review on 5 Years Cell Development within the European Integrated Project Crystal Clear
Creators: name: John, J.
name: Beaucarne, G.
name: Choulat, P.
name: Ma, Y.
name: Russell, R.
name: Romijn, I.
name: Lamers, M.
name: Mewe, A.
name: Weeber, A.
name: Hofmann, M.
name: Preu, R.
name: Gautero, L.
name: Slaoui, A.
name: Le Quang, N.
name: Nichiporuk, O.
name: Del Cañizo, C.
name: Pan, A.
name: Solheim, H.
name: Evju, J.
name: Nagel, H.
name: Bitnar, B.
name: Heemeier, M.
name: Weber, T.
name: Kaes, M.
name: Raabe, B.
name: Haverkamp, H.
name: Strümpel, C.
name: Hahn, G.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Mono- and Multicrystalline Silicon Materials and Cells

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 1162-1166
description: The integrated project (IP) Crystal Clear has been finalized in June 2009 and thus a chapter of more than 5 years successful
collaboration between European solar cell research institutes and industry is closed.
This paper reviews the achievements within the 4th subproject (SP4) of Crystal Clear dealing with the development of
advanced solar cell concepts. Within SP4, 12 of the 16 partners have participated and have formed a productive consortium.
The goal of this subproject was the further reduction of the cell production costs to enable the psychological important Si PV
module price below 1 Euro/Watt. This should be reached by novel cell designs and manufacturing processes in order to
achieve a process cost reduction of 40% (cost per Wp). One major effort was put in the development of novel cell concepts
and processes suited for thin wafers in industrial fabrication. Three cell concepts were distinguished and developed by the
participating institutes: i-PERC, MWT with full Al, and solar cells with laser fired contacts (PERC-LFC). In addition to the
effort to implement these concepts into an industrial type of process with large area wafers, excellent results have been
achieved on EFG and RGS ribbons. World record results with laboratory-type processes could be reported, with efficiencies
of 18.2 % on EFG ribbons and 14.4 % on RGS ribbons. The defect mechanism of these materials has been studied in detail
and efficiency limits have been indicated. The paper will refer to the separate contributions submitted to the conference by
the different partners on specific topics.
Group Communication Over LTE : A Radio Access Perspective
Creators: name: Kim, Juyeop
name: Choi, Sang Won
name: Shin, Won-Yong
name: Song, Yong-Soo
name: Kim, Yong-Kyu
Publisher: name: arXiv
Year: 2016
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Long Term Evolution (LTE), which has its root on commercial mobile communications, recently becomes an influential solution to future public safety communications. To verify the feasibility of LTE for public safety, it is essential to investigate whether an LTE system optimized for one-to-one communications is capable of providing group communication, which is one of the most important service concepts in public safety. In general, a number of first responders for public safety need to form a group for communicating with each other or sharing the common data for collaboration on their mission. In this article, we analyze how the current LTE system can support group communication in a radio access aspect. Based on the requirements for group communication, we validate whether each LTE-enabled radio access method can efficiently support group communication. In addition, we propose a new multicast transmission scheme, termed index-coded Hybrid Automatic Retransmission reQuest (HARQ). By applying the index coding concept to HARQ operations, we show that the LTE system can provide group communication more sophisticatedly in terms of radio resource efficiency and scalability. We finally evaluate the performance of LTE-enabled group communication using several radio access methods and show how the proposed transmission scheme brings the performance enhancement via system level simulations.
description: will be published in IEEE Communications Magazine
Sesleria bielzii Schur 1850
Creators: name: Kuzmanović, Nevena
name: Barina, Zoltán
name: Šída, Otakar
name: Lakušić, Dmitar
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Poales
Poaceae
Sesleria
Sesleria bielzii

description: Sesleria bielzii Schur (1850: 109)
 Lectotype (designated here):— ROMANIA. Transylvania: Rodnaer Alpen [Rodna mts.], Kühhorn [peak Ineul], E.A. Bielz s.n. (SIB 5976!). Figure 1.
 Note:— Kováts (1984: 63) cited as isotype a specimen deposited at BP (BP 10175!), “ Sesleria rigida Heuff. /= Sesleria bielzii Schur. /= Sesleria capitata Schur /In alpibus graniticis Arpasiensibus Juli/Dr Schur”. Schur (1850) mentioned two gatherings in the protologue, one collected by A. Bielz (“Kühhorn bei Rodna”), and one collected by himself (“auf dem Arpasch”); these are syntypes. Kováts’ citation of the BP specimen as isotype can be considered as an error to be corrected (Art. 9.9, McNeill et al. 2012). However, given the details on the label of this specimen, it is hard to regard it as original material: the plant is identified as S. rigida, and on the label S. bielzii and S. capitata Schur (1856: 201) nom. inval. are cited in synonymy. Nearly the same taxonomic treatment, in which S. bielzii and S. capitata were listed as synonyms of S. rigida var. capitata Schur (1856: 201), was later published by Schur (1856: 212). The name Sesleria capitata was listed as a synonym of S. bielzii later by Schur (1866: 743), along with S. rigida var. capitata. It is possible that the material was relabelled after 1850, but we could not find any confirmation of this. We do not consider this specimen to be original material. Taking all this into account, designation of this specimen as isotype could be corrected to neotype. However, we found a specimen at SIB that undoubtedly belongs to the original material collected by Bielz on Ineul peak on Rodna mts. (Kühhorn bei Rodna), which we designate as lectotype, superseding the choice of Kováts according to Art. 9.19 (McNeill et al. 2012).
description: Published as part of Kuzmanović, Nevena, Barina, Zoltán, Šída, Otakar & Lakušić, Dmitar, 2015, Typification of names in the group Coerulans of the genus Sesleria (Poaceae), pp. 103-120 in Phytotaxa 202 (2) on page 104, DOI: 10.11646/phytotaxa.202.2.3, http://zenodo.org/record/13641223
Small Molecule Inhibitors of AMA1/RON2 Interaction as New Antimalarial Agents
Creators: name: AKTER, MANSURA
Publisher: name: Monash University
Year: 2021
Subjects: Pharmaceutical sciences
Medicinal and biomolecular chemistry not elsewhere classified

description: Resistance to the first-line anti-malarial drug and its combination therapy is challenging the global efforts to combat malaria. This thesis works on the design and development of new antimalarial drug targeting the human red blood cell invasion mechanism.
Interplays between charge and electric field in perovskite solar cells: charge transport, recombination and hysteresis
Creators: name: Shi, Jiangjian
name: Zhang, Huiyin
name: Xu, Xin
name: Li, Dongmei
name: Luo, Yanhong
name: Meng, Qingbo
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Interplays between charge and electric field, which play a critical role in determining the charge transport, recombination, storage and hysteresis in the perovskite solar cell, have been systematically investigated by both electrical transient experiments and theoretical calculations. It is found that the light illumination can increase the carrier concentration in the perovskite absorber, thus enhancing charge recombination and causing the co-existence of high electric field and free carriers. Meanwhile, the cell shows a similar charge storage and junction mechanism to that of the multicrystalline silicon solar cell, where the junction electric field determines the charge collection and distribution. Furthermore, it is demonstrated that the static charge of both the doping and defect coming from ion (vacancy) migration can significantly influence the electric field inside the cell, thus affecting the charge collection and recombination, which could be the origins for the widely-concerned hysteresis behaviors.
Predicting the optimized thermoelectric performance of MgAgSb
Creators: name: Sheng, C. Y.
name: Liu, H. J.
name: Fan, D. D.
name: Cheng, L.
name: Wei, J. Zhang J.
name: Liang, J. H.
name: Jiang, P. H.
name: Shi, J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Using first-principles method and Boltzmann theory, we provide an accurate prediction of the electronic band structure and thermoelectric transport properties of alpha-MgAgSb. Our calculations demonstrate that only when an appropriate exchange-correlation functional is chosen can we correctly reproduce the semiconducting nature of this compound. By fine tuning the carrier concentration, the thermoelectric performance of alpha-MgAgSb can be significantly optimized, which exhibits a strong temperature dependence and gives a maximum ZT value of 1.7 at 550 K.
Reverse Shock Emission Driven By Post-Merger Millisecond Magnetar Winds: Effects of the Magnetization Parameter
Creators: name: Liu, L. D.
name: Wang, L. J.
name: Dai, Z. G.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The study of short-duration gamma-ray bursts provides growing evidence that a good fraction of double neutron star mergers lead to the formation of stable millisecond magnetars. The launch of Poynting flux by the millisecond magnetars could leave distinct electromagnetic signatures that reveal the energy dissipation processes in the magnetar wind. In previous studies (Wang & Dai 2013b; Wang et al. 2015), we assume that the magnetar wind becomes completely lepton-dominated so that electrons/positrons in the magnetar wind are accelerated by a diffusive shock. However, theoretical modeling of pulsar wind nebulae shows that in many cases the magnetic field energy in the pulsar wind may be strong enough to suppress diffusive shock acceleration. In this paper, we investigate the reverse shock emission as well as the forward shock emission with an arbitrary magnetization parameter $σ$ of a magnetar wind. We find that the reverse shock emission strongly depends on $σ$, and in particular, $σ\sim 0.3$ leads to the strongest reverse shock emission. Future observations would be helpful to diagnose the composition of the magnetar wind.
description: 8 pages, 4 figures, accepted for publication in A&A
Statistics of Farmers' Marketing and Purchasing Cooperatives, 1947-48 Marketing Season
Creators: name: Wanstall, Grace
name: Wanstall, Grace
Publisher: name: Unknown
Year: 1950
Subjects: subject: Agribusiness
subject: Crop Production/Industries
subject: Farm Management
subject: Financial Economics
subject: Livestock Production/Industries
subject: Marketing
subject: FOS: Economics and business

description: Contents: Introduction; Number of associations; Membership; Dollar volume of business; Trends; Cotton and cotton products; Dairy products; Fruits, vegetables, and nuts; Grain including rice and dry beans; Livestock; Poultry products; Tobacco; Wool and mohair; Miscellaneous; Purchasing; Cooperation in U. S. Territories.
High Efficiency Silicon Heterojunction Solar-Cell Activities in Neuchâtel, Switzerland
Creators: name: Lachenal, D.
name: Andrault, Y.
name: Bätzner, D.L.
name: Guerin, C.
name: Kobas, M.
name: Mendes, B.
name: Strahm, B.
name: Tesfai, M.
name: Wahli, G.
name: Buechel, A.
name: Descoeudres, A.
name: Choong, G.
name: Bartlomé, R.
name: Barraud, L.
name: Zicarelli Fernandez, F.
name: Bôle, P.
name: Fesquet, L.
name: Damon-Lacoste, J.
name: De Wolf, S.
name: Ballif, C.
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; 1272-1275
description: Silicon heterojunction technology (Si-HJT), consisting of thin amorphous silicon layers on
monocrystalline silicon wafers allows the production of photovoltaic solar cells with energy conversion efficiencies
above 20 %, also at industrial-production level. This article reports how this may be achieved. First, we focus on the
surface-passivation mechanism of intrinsic and doped amorphous silicon films in such solar cells, needed to enable
record-high values for the open-circuit voltage. Next, the industrial upscaling in large-area reactors of such film
deposition is discussed, including the fabrication of solar cells with energy-conversion efficiencies up to 21% in such
systems.
Recent Progress in Shearlet Theory: Systematic Construction of Shearlet Dilation Groups, Characterization of Wavefront Sets, and New Embeddings
Creators: name: Alberti, Giovanni S.
name: Dahlke, Stephan
name: De Mari, Filippo
name: De Vito, Ernesto
name: Führ, Hartmut
Publisher: name: arXiv
Year: 2016
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 42C15, 42C40, 46F12, 22D10

description: The class of generalized shearlet dilation groups has recently been developed to allow the unified treatment of various shearlet groups and associated shearlet transforms that had previously been studied on a case-by-case basis. We consider several aspects of these groups: First, their systematic construction from associative algebras, secondly, their suitability for the characterization of wavefront sets, and finally, the question of constructing embeddings into the symplectic group in a way that intertwines the quasi-regular representation with the metaplectic one. For all questions, it is possible to treat the full class of generalized shearlet groups in a comprehensive and unified way, thus generalizing known results to an infinity of new cases. Our presentation emphasizes the interplay between the algebraic structure underlying the construction of the shearlet dilation groups, the geometric properties of the dual action, and the analytic properties of the associated shearlet transforms.
description: 28 pages
Libor at crossroads: stochastic switching detection using information theory quantifiers
Creators: name: Bariviera, Aurelio F.
name: Guercio, M. Belen
name: Martinez, Lisana B.
name: Rosso, Osvaldo A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistical Finance (q-fin.ST)
subject: Computational Finance (q-fin.CP)
subject: Pricing of Securities (q-fin.PR)
subject: FOS: Economics and business

description: This paper studies the 28 time series of Libor rates, classified in seven maturities and four currencies), during the last 14 years. The analysis was performed using a novel technique in financial economics: the Complexity-Entropy Causality Plane. This planar representation allows the discrimination of different stochastic and chaotic regimes. Using a temporal analysis based on moving windows, this paper unveals an abnormal movement of Libor time series arround the period of the 2007 financial crisis. This alteration in the stochastic dynamics of Libor is contemporary of what press called "Libor scandal", i.e. the manipulation of interest rates carried out by several prime banks. We argue that our methodology is suitable as a market watch mechanism, as it makes visible the temporal redution in informational efficiency of the market.
description: 17 pages, 9 figures. arXiv admin note: text overlap with arXiv:1508.04748, arXiv:1509.00217
Sesleria coerulans var. borsae Deyl 1946
Creators: name: Kuzmanović, Nevena
name: Barina, Zoltán
name: Šída, Otakar
name: Lakušić, Dmitar
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Poales
Poaceae
Sesleria
Sesleria coerulans
Sesleria coerulans var. borsae deyl (1946: 139)

description: Sesleria coerulans var. borsae Deyl (1946: 139)
 Lectotype (designated here):— ROMANIA. Transylvania: Rodna Mountains, Ünőkő [peak Ineul], 17 August 1902, A. de Degen s.n. (BP 605380!). Figure 2.
 Other original material examined:— ROMANIA. Transylvania: Ineu (Kühhorn) [peak Ineul], 2000 m, 26 July 1903, A. Ade s.n. (BP 185046!); In cacumine “Omu” [peak Om] Bucsecs [Bucegi Mts.], 2500 m, 27 July 1902, A. de Degen s.n. (WU!); In alpibus Rodnensibus [Rodna Mts.], Cretz s.n. (WU!).
 Note:—When describing this variety, Deyl noted that plants with long hairy leaves occur on Ineul mountain (Rodna Mountains, peak Ineul), and also on the Retezat and Bucegi Mountains (Carpathians, Romania):—“ Habitat in alpinis Carpatorum Transsilvanicorum ”. We found only one specimen that has Deyl’s annotation label, which clearly indicates his assignment of it to a newly described variety, i.e. the specimen collected by Jávorka in Ukraine near the town Dragobrat in 1940 (BP 19516!). However, Deyl did not mention this specimen in „Specimina ut sequuntur vidi” (Deyl 1946: 137–138), which implies that he probably did not study this material while preparing the monograph. Therefore, we did not take it into account for the typification. We found several specimens seen and cited by Deyl (1946: 138), which were collected on the Carpathians in Romania (Rodna Mts. and Bucegi Mts.), and designate the specimen collected by Degen on peak Ineul on Rodna Mountains as lectotype (BP 605380), bearing in mind Deyl’s opinion that typical specimens are those from Ineul mountain (Deyl 1946: 140).
description: Published as part of Kuzmanović, Nevena, Barina, Zoltán, Šída, Otakar & Lakušić, Dmitar, 2015, Typification of names in the group Coerulans of the genus Sesleria (Poaceae), pp. 103-120 in Phytotaxa 202 (2) on page 106, DOI: 10.11646/phytotaxa.202.2.3, http://zenodo.org/record/13641223
Vibrational Signatures in the THz Spectrum of 1,3-DNB: A First-Principles and Experimental Study
Creators: name: Ahmed, Towfiq
name: Azad, Abul K.
name: Chellappa, Raja
name: Higginbotham-Duque, Amanda
name: Dattelbaum, Dana M.
name: Zhu, Jian-Xin
name: Moore, David
name: Graf, Matthias J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Understanding the fundamental processes of light-matter interaction is important for detection of explosives and other energetic materials, which are active in the infrared and terahertz (THz) region. We report a comprehensive study on electronic and vibrational lattice properties of structurally similar 1,3-dinitrobenzene (1,3- DNB) crystals through first-principles electronic structure calculations and THz spectroscopy measurements on polycrystalline samples. Starting from reported x-ray crystal structures, we use density-functional theory (DFT) with periodic boundary conditions to optimize the structures and perform linear response calculations of the vibrational properties at zero phonon momentum. The theoretically identified normal modes agree qualitatively with those obtained experimentally in a frequency range up to 2.5 THz and quantitatively at much higher frequencies. The latter frequencies are set by intra-molecular forces. Our results suggest that van der Waals dispersion forces need to be included to improve the agreement between theory and experiment in the THz region, which is dominated by intermolecular modes and sensitive to details in the DFT calculation. An improved comparison is needed to assess and distinguish between intra- and intermolecular vibrational modes characteristic of energetic materials.
description: 5 pages, 5 figures
Development of Fine SiC Grits and its Slurry to Increase Slicing Performance and Decrease Consumables Costs
Creators: name: Popa, A.
name: Mosby, J.
name: Neumann, F.
name: Emanuelsen, S.
name: Roszinski, J.O.
Publisher: name: WIP-Munich
Year: 2010
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Silicon Feedstock, Crystallisation and Wafering

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 1264-1266
description: The most common technology for slicing mono and multi silicon ingots into wafers for the photovoltaic industry makes use
of a multi-wire saw and abrasive slurry composed of silicon carbide particles and a carrier, typically PEG. The joint study
Saint-Gobain – Applied Materials presented at the 23rd EU PVSEC in 2008 indicated through laboratory studies and sawing
experiments that material removal rate and wafer quality (which together determine the total plant throughput) depend on size
and shape of SiC particles. The photovoltaic market has evolved towards thinner wafers, through application of thinner wire
and smaller grits. This allowed to decrease the amount of kerf per number of wafers produced and increases thus the total
throughput of wafers. However, going this way some wafer producers face additional challenges due to higher slurry
viscosity, lower material removal rate of finer versus coarser grits, shorter slurry life time during kerf accumulation and
higher difficulties to clean the wafers. This paper presents a solution developed by Saint-Gobain combining a sharp shaped
grit, with high slicing performance, with a slurry composition that allows to get a good benefit of the grit (increased
performance, lower viscosity, easier to clean). The overall cost of ownership of the slurry is being optimized, since cost
(along with quality) is a key market driver for the PV industry currently.