cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Table 1. The sites that were included in the study showing the location of each site (latitude and longitude) from Alarm Calls of Sagebrush Converge When Herbivory is High
Creators: name: Karban, Richard
name: Rasheed, Muhammad Usman
name: Huntzinger, Mikaela
name: Grof-Tisza, Patrick
name: Blande, James D.
Publisher: name: The Royal Society
Year: 2024
Subjects: classificationCode: 310399
subject: Ecology not elsewhere classified

description: Rare Chem Suppl.docx
Increased Internal Quantum Efficiency of Encapsulated Solar Cells by Using Two-Component Silicone as Encapsulant Material
Creators: name: Ohl, S.
name: Hahn, G.
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; 2693-2697
description: Two-component silicone encapsulation materials show a higher transmission in the short wavelength region compared to EVA (ethylene vinyl acetate) encapsulation material. This property leads to an enhanced blue response of the encapsulated solar cells and therefore an increase in Jsc (short circuit current density) is expected. Selective emitter and homogeneous emitter solar cells have been encapsulated with silicone materials as well as with EVA, and the IQE (internal quantum efficiency) of all cells before and after encapsulation was determined. A significant gain in IQE for wavelengths below 380 nm was observed for cells encapsulated with silicone compared to those with EVA. We estimate that that the improved blue response of the cells encapsulated with silicone results in a possible gain in Jsc of up to 1.3 % for the selective emitter cells.
Spectral Splitting CPV Modules with AlGaAs/GaAs/GaSb and GaInP/GaAs/InGaAs(P) Solar Cells
Creators: name: Vlasov, A.S.
name: Khvostikov, V.P.
name: Karlina, L.B.
name: Sorokina, S.V.
name: Potapovich, N.S.
name: Shvarts, M.Z.
name: Timoshina, N.K.
name: Lantratov, V.M.
name: Mintairov, S.A.
name: Kalyuzhnyy, N.A.
name: Vasil’ev, V.I.
name: Andreev, V.M.
Publisher: name: WIP
Year: 2011
Subjects: Advanced Photovoltaics : New Concepts and Ultra-High Efficiency
Terrestrial Concentrator Systems

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 133-136
description: Development of a concentrator photovoltaic system with a spectral splitting of the solar light based
on a Fresnel lens and two dichroic filters is reported. According to our estimates, the efficiency of such a module
can reach 49.4% with the use of three SJ cells, while in combination of tandem DJ cell and low-bandgap cells the
efficiency reaches 48.5-50.6%. SJ Solar cells based on AlGaAs, GaAs, GaSb, InGa(P)As were obtained by zinc
diffusion from the gas phase in the epitaxial base layer of n-type conductivity. Tandem solar cells based on
GaInP/GaAs were grown by MOCVD technique. The overall efficiency of the three single-junction solar cells
developed for the module with the spectral splitting of light, was 38.1% (AM1.5D) for the concentration ratio of
Kc = 200x. In the module with a cascade solar cells and an InGaAs single junction solar cell the total efficiency
was 37.9% in the concentration range of 400-800x. Measurements of a concentrator photovoltaic module with a
spectral splitting system have been performed. Photovoltaic module efficiency of 24.7% for the modulus of the
three single-junction solar cells and 27.9% for the module with the double-and single junction cells were
registered.
Evaluation of Stress on Cells During Different Interconnection Processes
Creators: name: Lalaguna, B.
name: Sánchez-Friera, P.
name: Mäckel, H.
name: Sánchez, D.
name: Alonso, J.
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; 2705-2708
description: During the last years, new stringing techniques with low stress have been developed, such as the use of
conductive adhesives [1], low temperature solders [2] or laser soldering. The aim of this work is to evaluate the stress
introduced in the cells during the soldering process, making a comparison between different techniques and solder
materials that exist nowadays in the market. The interconnection technologies under investigation have been: lowtemperature
snap-cure conductive adhesives, induction and infrared soldering and laser spot soldering. For the
soldering approaches different alloys and materials were evaluated, such as low temperature solders, low CTE alloys
and copper ribbons of very low yield strength. Electroluminescence imaging and mechanical tests have been used to
quantify the stress experienced by the cells. In addition, the possible propagation of microcracks during thermal
cycling has been investigated.
Вестник научной мысли,Выпуск 5 2022
Creators: name: Дагестанский территориальный институт профессиональных бухгалтеров
Publisher: name: Дагестанский территориальный институт профессиональных бухгалтеров
Year: 2022

description: Вестник научной мысли,Выпуск 5 2022
Laser Crystallized Silicon Layers for Multicrystalline Thin-Film Solar Cells
Creators: name: Andrä, G.
name: Höger, I.
name: Bergmann, J.
name: Gawlik, A.
name: Plentz, J.
name: Ose, E.
name: Falk, F.
name: Burghardt, B.
name: Schippel, S.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Thin Films Solar Cells
Thin Film Crystalline Silicon Solar Cells and Wafer Equivalents

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 2521-2524
description: For multicrystalline silicon thin film solar cells on glass seed layers with crystal grains well above 10
μm were prepared by laser crystallization. Two laser processes making use of line focus beams were investigated: A
cw diode laser process (806 nm wavelength) and a process using a pulsed laser (600 ns, 515 nm wavelength). With
the diode laser layers down to 110 nm thickness were successfully crystallized, whereas with the pulsed laser even 55
nm thin layers were prepared. The thicker the layers, the larger grains were produced.
Terahertz Coded Aperture Mask using a Vanadium Dioxide Bowtie Antenna Array
Creators: name: Nadri, Souheil
name: Percy, Rebecca
name: Kittiwatanakul, Lin
name: Arsenovic, Alex
name: Lu, Jiwei
name: Wolf, Stu
name: Weikle, Robert M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Terahertz imaging systems have received substantial attention from the scientific community for their use in astronomy, spectroscopy, plasma diagnostics and security. One approach to designing such systems is to use focal plane arrays. Although the principle of these systems is straightforward, realizing practical architectures has proven deceptively difficult. A different approach to imaging consists of spatially encoding the incoming flux of electromagnetic energy prior to detection using a reconfigurable mask. This technique is referred to as coded aperture or Hadamard imaging. This paper details the design, fabrication and testing of a prototype coded aperture mask operating at WR 1.5 (500 to 750 GHz) that uses the switching properties of vanadium dioxide (VO2). The reconfigurable mask consists of bowtie antennas with vanadium dioxide VO2 elements at the feed points. From the symmetry, a unit cell of the array can be represented by an equivalent waveguide whose dimensions limit the maximum operating frequency. In this design, the cutoff frequency of the unit cell is 640 GHz. The VO2 devices are grown using reactive-biased target ion beam deposition. A reflection coefficient (S11) measurement of the mask in the WR 1.5 (500 to 750 GHz) band is conducted. The results are compared with circuit models and found to be in good agreement. A simulation of the transmission response of the mask is conducted and shows a transmission modulation of up to 28 dB. This project is a first step towards the development of a full coded aperture imaging system operating at WR 1.5 with VO2 as the mask switching element.
description: 9 pages, 11 figures
Wave and current flume tank of IFREMER at Boulogne-sur-mer. Description of the facility and its equipment
Creators: name: Gaurier, Benoit
name: Germain, Gregory
name: Facq, Jean-Valery
name: Bacchetti, Thomas
Publisher: name: Ifremer
Year: 2018
Subjects: fluid mechanics
hydrodynamics
experimental trials
wave and current flume tank
Ifremer
Boulogne-surmer

description: This document presents the wave and current flume tank of IFREMER at Boulogne-sur-mer. This facility is unique in Europe because of its size and capabilities. The experimental working section is 4m wide by 2m deep and 18m long. Two pumps with a total power of 500kW enable the 700m3 of fresh water to move with a maximum velocity of 2.2m/s. Wave can be superimposed to the current using a dedicated wavemaker. It can be located at an upstream of downstream surface position in order to generate wave propagating with or against the current. Additional specific experimental devices are used in the laboratory as well, such as: Laser Doppler Velocimeter, Acoustic Doppler Velocimeter, Particles Image Velocimetry, underwater and aerial Qualysis Motion Tracking system or a 6 degrees of freedom motion generating system called hexapod. Many mono and multi-components waterproof transducers, with wide force measurement ranges, are available. Combined with an in-house and modular acquisition system, any kind of tension-based sensors can be recorded, with a 25kHz maximum sampling frequency. Because of its original characteristics and specific equipments, this experimental facility can be used to carry out various hydrodynamic studies in different fields: oil and gas, naval hydrodynamics, marine renewable energy or wave-current-structure interactions. Continuous improvements and equipment upgrades enable this facility to respond to a growing demand of experimental tests in all these hydrodynamic areas.
Experimental procedures, Supplementary Results and Discussion from Can calmodulin bind to lipids of the cytosolic leaflet of plasma membranes?
Creators: name: Scollo, Federica
name: Tempra, Carmelo
name: Evci, Hüseyin
name: Riopedre-Fernandez, Miguel
name: Olżyńska, Agnieszka
name: Javanainen, Matti
name: Uday, Arunima
name: Cebecauer, Marek
name: Cwiklik, Lukasz
name: Martinez-Seara, Hector
name: Jungwirth, Pavel
name: Jurkiewicz, Piotr
name: Hof, Martin
Publisher: name: The Royal Society
Year: 2024
Subjects: classificationCode: 310908
subject: Animal physiology - biophysics
classificationCode: 320802
subject: Human biophysics

description: Experimental procedures, Supplementary Results and Discussion
Non-Hermitian Rayleigh-Schroedinger Perturbation Theory
Creators: name: Buth, Christian
name: Santra, Robin
name: Cederbaum, Lorenz S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We devise a non-Hermitian Rayleigh-Schroedinger perturbation theory for the single- and the multireference case to tackle both the many-body problem and the decay problem encountered, for example, in the study of electronic resonances in molecules. A complex absorbing potential (CAP) is employed to facilitate a treatment of resonance states that is similar to the well-established bound-state techniques. For the perturbative approach, the full CAP-Schroedinger Hamiltonian, in suitable representation, is partitioned according to the Epstein-Nesbet scheme. The equations we derive in the framework of the single-reference perturbation theory turn out to be identical to those obtained by a time-dependent treatment in Wigner-Weisskopf theory. The multireference perturbation theory is studied for a model problem and is shown to be an efficient and accurate method. Algorithmic aspects of the integration of the perturbation theories into existing ab initio programs are discussed, and the simplicity of their implementation is elucidated.
description: 10 pages, 1 figure, RevTeX4.2, erratum added
Supplementary material for lifetime trajectories of male mating effort under reproductive conflict in a cooperatively breeding mammal
Creators: name: Birch, Graham
name: Nichols, Hazel
name: Mwanguhya, Francis
name: Thompson, Faye Jacqueline
name: Cant, Michael
name: Blount, Jonathan
Publisher: name: The Royal Society
Year: 2024
Subjects: classificationCode: 310901
subject: Animal behaviour

description: Includes addition detail on methods, additional figures, and output tables for all statistical models used
Study on the Crystallization Process of Silicon Rich a-Si1-xCx:H Films
Creators: name: Ambrosone, G.
name: Basa, D.K.
name: Coscia, U.
name: Rava, P.
name: Chiodone, A.
name: Tresso, E.
name: Tucci, M.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Thin Films Solar Cells
Thin Film Crystalline Silicon Solar Cells and Wafer Equivalents

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 2529-2532
description: The crystallization of silicon rich hydrogenated amorphous silicon carbon films prepared by Plasma
Enhanced Chemical Vapor Deposition technique has been induced by thermal annealing as well as excimer laser
annealing. For the thermal annealed samples the transition from amorphous to microcrystalline phase at 800 °C has
been demonstrated and the hexagonal polycrystalline silicon carbide at 1200 °C has been obtained. The excimer laser
annealing at the energy density of 242 mJ/cm2 induces the formation of both Si and SiC cubic crystallites. In the
laser treated samples the partial hydrogen evolution and the oxygen incorporation have been detected by infrared
spectra. Field emission scanning electron microscopy analysis reveals that the laser crystallization process is
confined close to the top surface of the films
How to Use Temporal-Driven Constrained Clustering to Detect Typical Evolutions
Creators: name: Rizoiu, Marian-Andrei
name: Velcin, Julien
name: Lallich, Stéphane
Publisher: name: arXiv
Year: 2016
Subjects: subject: Machine Learning (cs.LG)
subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: In this paper, we propose a new time-aware dissimilarity measure that takes into account the temporal dimension. Observations that are close in the description space, but distant in time are considered as dissimilar. We also propose a method to enforce the segmentation contiguity, by introducing, in the objective function, a penalty term inspired from the Normal Distribution Function. We combine the two propositions into a novel time-driven constrained clustering algorithm, called TDCK-Means, which creates a partition of coherent clusters, both in the multidimensional space and in the temporal space. This algorithm uses soft semi-supervised constraints, to encourage adjacent observations belonging to the same entity to be assigned to the same cluster. We apply our algorithm to a Political Studies dataset in order to detect typical evolution phases. We adapt the Shannon entropy in order to measure the entity contiguity, and we show that our proposition consistently improves temporal cohesion of clusters, without any significant loss in the multidimensional variance.
Gamma-Gamma Absorption in the Broad Line Region Radiation Fields of Gamma-Ray Blazars
Creators: name: Boettcher, Markus
name: Els, Paul
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The expected level of gamma-gamma absorption in the Broad Line Region (BLR) radiation field of gamma-ray loud Flat Spectrum Radio Quasars (FSRQs)is evaluated as a function of the location of the gamma-ray emission region. This is done self-consistently with parameters inferred from the shape of the spectral energy distribution (SED) in a single-zone leptonic EC-BLR model scenario. We take into account all geometrical effects both in the calculation of the gamma-gamma opacity and the normalization of the BLR radiation energy density. As specific examples, we study the FSRQs 3C279 and PKS 1510-089, keeping the BLR radiation energy density at the location of the emission region fixed at the values inferred from the SED. We confirm previous findings that the optical depth due to $γγ$ absorption in the BLR radiation field exceeds unity for both 3C279 and PKS 1510-089 for locations of the gamma-ray emission region inside the inner boundary of the BLR. It decreases monotonically, with distance from the central engine and drops below unity for locations within the BLR. For locations outside the BLR, the BLR radiation energy density required for the production of GeV gamma-rays rapidly increases beyond observational constraints, thus making the EC-BLR mechanism implausible. Therefore, in order to avoid significant gamma-gamma absorption by the BLR radiation field, the gamma-ray emission region must therefore be located near the outer boundary of the BLR.
description: Accepted for publication in The Astrophysical Journal
Steady-State Thermal Analysis of an Integrated 160 GHz Balanced Quadrupler Based on Quasi-Vertical Schottky Diodes
Creators: name: Nadri, Souheil
name: Xie, Linli
name: Alijabbari, Naser
name: Gaskins, John T.
name: Foley, Brian M.
name: Hopkins, Patrick E.
name: Weikle, Robert M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: This work reports on a steady-state thermal analysis of a 160 GHz balanced quadrupler, based on a quasi-vertical varactor Schottky diode process, for high power applications. The chip is analyzed by solving the heat equation via the 3D finite element method. Time-Domain Thermoreflectance (TDTR) was used to measure the thermal conductivity of the different materials used in the model. A maximum anode temperature of 64.9 C was found from the simulation. The addition of an extra beam lead connected to the block, for heat sinking, was found to reduce this maximum temperature to 41.0 C.
description: 2 pages, 3 figures, 2 tables. in Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2015 40th International Conference on
Laser slowing of CaF molecules to near the capture velocity of a molecular MOT
Creators: name: Hemmerling, Boerge
name: Chae, Eunmi
name: Ravi, Aakash
name: Anderegg, Loic
name: Drayna, Garrett K.
name: Hutzler, Nicholas R.
name: Collopy, Alejandra L.
name: Ye, Jun
name: Ketterle, Wolfgang
name: Doyle, John M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Laser slowing of CaF molecules down to the capture velocity of a magneto-optical trap (MOT) for molecules is achieved. Starting from a two-stage buffer gas beam source, we apply frequency-broadened "white-light" slowing and observe approximately 6x10^4 CaF molecules with velocities near 10\,m/s. CaF is a candidate for collisional studies in the mK regime. This work represents a significant step towards magneto-optical trapping of CaF.
Energetic characterisation and statistics of solar coronal brightenings
Creators: name: Joulin, Vincent
name: Buchlin, Éric
name: Solomon, Jacques
name: Guennou, Chloé
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: To explain the high temperature of the corona, much attention has been paid to the distribution of energy in dissipation events. Indeed, if the event energy distribution is steep enough, the smallest, unobservable events could be the largest contributors to the total energy dissipation in the corona. Previous observations have shown a wide distribution of energies but remain inconclusive about the precise slope. Furthermore, these results rely on a very crude estimate of the energy. On the other hand, more detailed spectroscopic studies of structures such as coronal bright points do not provide enough statistical information to derive their total contribution to heating. We aim at getting a better estimate of the distributions of the energy dissipated in coronal heating events using high-resolution, multi-channel Extreme Ultra-Violet (EUV) data. To estimate the energies corresponding to heating events and deduce their distribution, we detect brightenings in five EUV channels of the Atmospheric Imaging Assembly (AIA) on-board the Solar Dynamics Observatory (SDO). We combine the results of these detections and we use maps of temperature and emission measure derived from the same observations to compute the energies. We obtain distributions of areas, durations, intensities, and energies (thermal, radiative, and conductive) of events. These distributions are power-laws, and we find also power-law correlations between event parameters. The energy distributions indicate that the energy from a population of events like the ones we detect represents a small contribution to the total coronal heating, even when extrapolating to smaller scales. The main explanations for this are how heating events can be extracted from observational data, and the incomplete knowledge of the thermal structure and processes in the coronal plasma attainable from available observations.
description: 15 pages, 13 figures
Nonperturbative Renormalization in the RI-SMOM Scheme and Gribov Uncertainty in the RI-MOM Scheme for Staggered Bilinears
Creators: name: Kim, Jangho
name: Lee, Weonjong
name: Pak, Jeonghwan
name: Park, Sungwoo
name: Collaboration, SWME
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We present results of renormalization factors for bilinear operators obtained using the nonperturbative renormalization method (NPR) in the RI-SMOM schemes. The operators are constructed using HYP staggered quarks on the MILC asqtad lattice ($N_f=2+1$). We compare results in the RI-SMOM schemes with those in the RI-MOM scheme for the $V\otimes S$ and $S\otimes S$ operators. Since we use Landau gauge fixing, we study the effect of Gribov ambiguity on the wave function renormalization $Z_q$ in the RI-MOM scheme. We find that the Gribov uncertainty is negligibly small for $Z_q$ in the RI-MOM scheme.
description: 7 pages, 10 figures, Lattice 2015 proceeding
Results from (anti-)(hyper-)nuclei production and searches for exotic bound states with ALICE at the LHC
Creators: name: Sharma, Natasha
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The excellent particle identification capabilities of the ALICE detector, using the time projection chamber and the time-of-flight detector, allow the detection of light nuclei and anti-nuclei. Furthermore, the high tracking resolution provided by the inner tracking system enables the separation of primary nuclei from those coming from the decay of heavier systems. This allows for the reconstruction of decays such as the hypertriton mesonic weak decay ($^3_Λ$H$\rightarrow ^3$He + $π^-$), the decay of a hypothetical bound state of a $Λ$n into a deuteron and pion or the H-dibaryon decaying into a $Λ$, a proton and a $π^{-}$. An overview of the production of stable nuclei and anti-nuclei in proton-proton, proton-lead and, in particular, lead-lead collisions is presented. Hypernuclei production rates in Pb--Pb are also shown, together with the upper limits estimated on the production of hypothetical exotica candidates. The results are compared with predictions for the production in thermal (statistical) and coalescence models.
description: 4 pages, 7 figures, Quark Matter Conference at Kobe, Japan 2015 proceedings, submitted at Nuclear Physics A
Thin Film Morphology, Growth and Defect Structure of e-Beam Deposited Silicon on Glass
Creators: name: Werner, M.
name: Schubert, U.
name: Hagendorf, C.
name: Schneider, J.
name: Keevers, M.
name: Egan, R.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Thin Films Solar Cells
Thin Film Crystalline Silicon Solar Cells and Wafer Equivalents

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 2482-2485
description: In this paper the e-beam evaporation of silicon thin films on a variety of textured glass is discussed. Three
different textures, (i) bead coating, (ii) abrasion etch and (iii) a new low profil etch are investigated. The micro-structural
properties of the silicon films are studied by scanning and transmission electron microscopy (SEM/TEM). Due to the
directional deposition of Silicon in e-beam evaporation in comparison to conformal Si growth in PECVD, issues with
textured substrates are identified. At steep texture angles, columnar and oxygen-rich growth of the silicon is observed.
LIT shunt localization in processed mini-modules is performed. It is shown that HF etching of these oxygen-rich regions
during solar cell processing together with subsequent metallization can lead to shunts in the back contact of the devices.
This problem can be avoided using a smooth texture with gentle angles. The low profil etch texture is shown to be
compatible with e-beam evaporation of silicon thin films.
Εξέταση του Ρώσο-ουκρανικού ζητήματος 2004-2023 υπό το πρίσμα του δόγματος των διεθνών σχέσεων της Ρωσικής Ομοσπονδίας
Creators: name:  Ζαχάρωφ, Εμμανουήλ – Φώτιος Ιωάννη
Publisher: name: Aristotle University of Thessaloniki
Year: 2024
Subjects: Ρωσία
Ουκρανία
Πόλεμος
Russia
Ukraine
War

description: Η μεταπτυχιακή διπλωματική εργασία εξετάζει το Ρώσο-ουκρανικό ζήτημα από το 2004 έως το 2023 υπό το πρίσμα του δόγματος των διεθνών σχέσεων της Ρωσικής Ομοσπονδίας. Στη πρώτη ενότητα, η εργασία πραγματεύεται: α) το δόγμα των διεθνών σχέσεων της Ρωσίας, μέσα από το θεωρητικό πλαίσιο των ρευμάτων του ρεαλισμού και την πρακτική εφαρμογή του στην «ρωσική» περίπτωση μέσα από μια ολιστική προσέγγιση, β) το στρατιωτικό δόγμα της Ρωσίας, αλλά και γ) τον ρόλο της ηγεσίας της στη διαμόρφωση των διεθνών σχέσεων και της εξωτερικής πολιτικής. Στη δεύτερη ενότητα της εργασίας γίνεται η ανάλυση των προηγούμενων γεγονότων πριν από την ρωσική εισβολή στην Ουκρανία. Πιο συγκεκριμένα εξετάζεται όλο το διάστημα από την «Πορτοκαλί Επανάσταση» μέχρι την ρωσική εισβολή στην Ουκρανία του 2022, όπως για παράδειγμα η προαναφερθείσα «Πορτοκαλί Επανάσταση», τα γεγονότα της πλατείας Μαϊντάν, η προσάρτηση της Κριμαίας από την Ρωσία, οι συμφωνίες του Μινσκ, αλλά και η «παγωμένη σύγκρουση» στην περιοχή του Ντονμπάς. Στη τρίτη και τελευταία ενότητα αναλύεται ο πόλεμος στην Ουκρανία μέχρι τα τέλη του 2023, παρουσιάζοντας τόσο πολεμικά γεγονότα, όσο και την ευρύτερη σύγκρουση της «δύσης» με τη Ρωσία. Τέλος, στον επίλογο ακολουθούν τα συμπεράσματα του γράφοντα αλλά και επιμέρους διαπιστώσεις όσον αφορά τα υπό εξέταση ζητήματα.
description: The present master's thesis examines the Russian-Ukrainian issue from 2004 to 2023 in the light of the international relations’ doctrine of the Russian Federation. Its first section is comprised by a) a holistically approached discussion of Russia's international relations’ doctrine through the theoretical framework of the currents of realism and of the practical application of this framework in the “Russian case”, b) a discussion of the military doctrine of Russia, and c) a discussion of the role of Russia’s leadership in shaping international relations and foreign policy. The second section analyses the events that had taken place before the Russian invasion of Ukraine. More specifically, it examines the entire period from the "Orange Revolution" to the Russian invasion of Ukraine in 2022, including the events of Maidan Square, the annexation of Crimea by Russia, the Minsk agreements, but also the "frozen conflict" in the Donbas region. The third and final section analyses the war in Ukraine until the end of 2023, presenting both specific war events and the wider conflict of the "West" with Russia. Finally, the epilogue of the thesis presents the conclusions of the writer as well as individual findings regarding the issues under consideration.
Wide-Bandgap CuAlSe2 Thin Films Deposited on ATO Substrates
Creators: name: López-García, J.
name: Montero, J.
name: Maffiotte, C.
name: Guillén, C.
name: Herrero, J.
Publisher: name: WIP
Year: 2011
Subjects: Thin Film Solar Cells
CIS and Related Ternary and Quaternary Thin Film Solar Cells

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 2890-2895
description: Formation and crystallization of homogeneous CuAlSe2 (CAS) thin films prepared by a two stage
process consisting on the selenization of evaporated metallic precursor layers has been achieved onto Sb:SnO2
(ATO)-coated glass substrates. Influence on the structural, optical, morphological and compositional properties of
the sample thickness and selenization conditions have been analyzed. Polycrystalline CuAlSe2 samples with
chalcopyrite structure and a preferential orientation along the (112) plane have been obtained on ATO-coated
substrates, in a wide range of thicknesses and Se amounts, with high degree of reproducibility. Average crystallite
size tends to increase and the preferential orientation remains constant with the increase of the CAS thickness and
the Se amount in the selenization process. The band gap energy has ranged between 2.4-2.5 eV. XPS
measurements have shown a homogeneous distribution of Cu and Al that remains almost constant in depth, and a
more heterogeneous distribution of Se along the CAS sample. The CAS/ATO contacts have exhibited ohmic
characteristics in all cases.
Dynamical evolution of star forming regions - II. Basic kinematics
Creators: name: Parker, Richard J.
name: Wright, Nicholas J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We follow the dynamical evolution of young star-forming regions with a wide range of initial conditions and examine how the radial velocity dispersion, $σ$, evolves over time. We compare this velocity dispersion to the theoretically expected value for the velocity dispersion if a region were in virial equilibrium, $σ_{\rm vir}$ and thus assess the virial state ($σ/ σ_{\rm vir}$) of these systems. We find that in regions that are initially subvirial, or in global virial equilibrium but subvirial on local scales, the system relaxes to virial equilibrium within several million years, or roughly 25 - 50 crossing times, according to the measured virial ratio. However, the measured velocity dispersion, $σ$, appears to be a bad diagnostic of the current virial state of these systems as it suggests that they become supervirial when compared to the velocity dispersion estimated from the virial mass, $σ_{\rm vir}$. We suggest that this discrepancy is caused by the fact that the regions are never fully relaxed, and that the early non-equilibrium evolution is imprinted in the one-dimensional velocity dispersion at these early epochs. If measured early enough ($
description: 20 pages, 14 figures, accepted for publication in MNRAS
Appearances of pseudo-bosons from Black-Scholes equation
Creators: name: Bagarello, Fabio
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: It is a well known fact that the Black-Scholes equation admits an alternative representation as a Schrödinger equation expressed in terms of a non self-adjoint hamiltonian. We show how {\em pseudo-bosons}, linear or not, naturally arise in this context, and how they can be used in the computation of the pricing kernel.
description: In press in Journal of Mathematical Physics
A Decomposition of Parking Functions by Undesired Spaces
Creators: name: Bruce, Melody
name: Dougherty, Michael
name: Hlavacek, Max
name: Kudo, Ryo
name: Nicolas, Ian
Publisher: name: arXiv
Year: 2016
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05A19

description: There is a well-known bijection between parking functions of a fixed length and maximal chains of the noncrossing partition lattice which we can use to associate to each set of parking functions a poset whose Hasse diagram is the union of the corresponding maximal chains. We introduce a decomposition of parking functions based on the largest number omitted and prove several theorems about the corresponding posets. In particular, they share properties with the noncrossing partition lattice such as local self-duality, a nice characterization of intervals, a readily computable Möbius function, and a symmetric chain decomposition. We also explore connections with order complexes, labeled Dyck paths, and rooted forests.
description: 22 pages, 13 figures
Supplementary Materials
Creators: name: Lu, Jingxuan
Publisher: name: figshare
Year: 2023
Subjects: Nanomedicine

description: Radiation-induced excessive reactive oxygen (ROS) is reported to induce pulmonary injury and fibrosis in radiation-induced pulmonary fibrosis (RIPF). However, pirfenidone, approved for the treatment of idiopathic pulmonary fibrosis, has a limited inhibition effect on ROS. Hence, using 10-carboxyl-pirfenidone and 1,10-phenanthroline as the ligand, a nanoscale complex with Cerium(III) as the central atom was designed (NPs Ce(phen)Pirf3) in the present study. Using the irradiation fibrosis model of RLE-6TN cell strain and C57 mice, the complex significantly improved ROS scavenging and alleviated radiation-induced lung pathological changes, showed improvement in lung function during 4~16 weeks, and regulated the expression of N-cadherin, E-cadherin, α-SMA, and TGF-β1 to alleviate RIPF. Cerium(III) and 1,10-phenanthroline in the molecule endow NPs Ce(phen)Pirf3 with blue fluorescence, and the nanostructures enable NPs Ce(phen)Pirf3 sustained release for 4h. On the other hand, benefiting from Ce-containing, the role of the complex in reducing the growth of two types of thoracic tumor models (A549 and 4T1) was investigated. Taken together, our research emphasized with the differential effect of NPs Ce(phen)Pirf3 on the treatment of RIPF and tumor destruction, which would provide a new promise for radioprotection and biological applications.
First-Principles Study of In-Free Photovoltaic Compounds, I2-II-IVSe4 (I= Cu, Ag; II= Zn, Cd, Hg; IV= Si, Ge, Sn; VI= S, Se)
Creators: name: Maeda, T.
name: Nakamura, S.
name: Wada, T.
Publisher: name: WIP
Year: 2011
Subjects: Thin Film Solar Cells
CIS and Related Ternary and Quaternary Thin Film Solar Cells

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 2836-2839
description: We have systematically studied phase stability and electronic structure of I2-II-IV-VI4 (I=Cu, Ag; II = Zn, Cd, Hg; IV =
Si, Ge, Sn; VI= S, Se) by first-principles calculations. The enthalpies of formation for kesterite (KS), stannite (ST) and
wurtz-stannite (WST) phases of I2-II-IV-VI4 were calculated. In I2-ZnSnSe4 (I=Cu, Ag) and Cu2ZnIVSe4 (IV=Si, Ge,
and Sn), the KS phase is more stable than the ST and WST phases. On the other hand, in Cu2IISnSe4, (II= Cd and Hg),
the ST phase is more stable than the KS and WST phases. The theoretical band gaps of KS-type Cu2ZnSiSe4 (1.48 eV)
and Cu2ZnGeSe4 (1.10 eV) are wider than that of KS-type Cu2ZnSnSe4 (CZTSe) (0.63 eV). The band gaps of ST-type
Cu2CdSnSe4 (0.52 eV) and ST-type Cu2HgSnSe4 (0.07 eV) are smaller than that of KS-type CZTSe (0.63 eV). The
band gap of KS-type Ag2ZnSnSe4 (AZTSe) (0.94 eV) is wider than that of KS-type CZTSe (0.63 eV). The valence
band maximum (VBM) of I2-II-IV-VI4 consists of an antibonding orbital of I (Cu, Ag) d and VI (S, Se) p, while the
conduction band minimum (CBM) consists of an antibonding orbital of IV (Si, Ge, Sn) s and VI (S, Se) p. The energy
levels of VBMs in Cu2II-IVSe4 do not change much compared with those of CZTSe. On the other hand, the energy
levels of CBMs of IV ns + Se 4p in Cu2ZnSiSe4 and Cu2ZnGeSe4 become higher than those in Cu2ZnSnSe4, while the
energy levels of CBMs in Cu2IISnSe4 become lower than those in CZTSe. The band gap energy of AZTSe is wider than
that of CZTSe because the energy level of VBM (Ag 4d +Se 4p) in AZTSe is lower than that (Cu 3d +Se 4p) in CZTSe.
Statistics of Farmers' Marketing and Purchasing Cooperatives, 1944-45 Marketing Season
Creators: name: Wanstall, Grace
name: Wanstall, Grace
Publisher: name: Unknown
Year: 1947
Subjects: subject: Agribusiness
subject: Consumer/Household Economics
subject: Farm Management
subject: Financial Economics
subject: Livestock Production/Industries
subject: Marketing
subject: FOS: Economics and business

description: Contents: Number of associations; Membership; Dollar volume of business; Significant trends; Cotton and cotton products; Dairy products; Fruits, vegetables, and nuts; Grain, dry beans, and rice; Livestock; Poultry and eggs; Wool and mohair; Miscellaneous marketing and services; Purchasing.
Phonon-assisted resonant tunneling of electrons in graphene-boron nitride transistors
Creators: name: Vdovin, E. E.
name: Mishchenko, A.
name: Greenaway, M. T.
name: Zhu, M. J.
name: Ghazaryan, D.
name: Misra, A.
name: Cao, Y.
name: Morozov, S. V.
name: Makarovsky, O.
name: Patanè, A.
name: Slotman, G. J.
name: Katsnelson, M. I.
name: Geim, A. K.
name: Novoselov, K. S.
name: Eaves, L.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We observe a series of sharp resonant features in the differential conductance of graphene-hexagonal boron nitride-graphene tunnel transistors over a wide range of bias voltages between $\sim$10 and 200 mV. We attribute them to electron tunneling assisted by the emission of phonons of well-defined energy. The bias voltages at which they occur are insensitive to the applied gate voltage and hence independent of the carrier densities in the graphene electrodes, so plasmonic effects can be ruled out. The phonon energies corresponding to the resonances are compared with the lattice dispersion curves of graphene-boron nitride heterostructures and are close to peaks in the single phonon density of states.
Novel MWT Cell Design on Monocrystalline Silicon Wafers
Creators: name: Meyer, K.
name: Krokoszinski, H.-J.
name: Lahmer, D.
name: Wütherich, T.
name: Dupke, M.
name: Jesswein, R.
name: Lossen, J.
name: Zerrer, P.
name: Prießner, A.
name: Clement, F.
name: Biro, D.
name: Preu, R.
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; 1774-1777
description: On multicrystalline silicon wafers the “Metal Wrap Through” (MWT) concept is a well established
cell design. Some cells are available on the market or were announced to be available soon [1,2]. Using this wafer
material a MWT design can improve the cell efficiency by up to 0.6 % abs. [3, 4, 5, 6].
However, on monocrystalline wafers the MWT concept faces additional challenges like reduced yield by breakage
and additional electrical losses. The first one is due to the laser grooves which are needed for the isolation of emitter
and base areas on the back side and extend across the whole wafer forming predetermined breaking lines in our
standard MWT design [4]. The electrical losses are due to an increased series resistance because of lateral currents
above the back sided emitter busbars and to higher j02 losses because of the additional laser isolation [4]. In this work
we show concepts and technologies designed to overcome these disadvantages and to reduce the monocrystalline
specific efficiency losses of the MWT concept.
Growth and Characterization of Cu2ZnSnS4 Thin Films Prepared by Sulfurization of Evaporated Precursors
Creators: name: Valentini, M.
name: Biccari, F.
name: Chierchia, R.
name: Mangiapane, P.
name: Salza, E.
name: Mittiga, A.
Publisher: name: WIP
Year: 2011
Subjects: Thin Film Solar Cells
CIS and Related Ternary and Quaternary Thin Film Solar Cells

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 2911-2915
description: Cu2ZnSnS4 (CZTS) is considered a promising alternative to the well developed Cu(In,Ga)Se2 which
contains materials such as In and Ga, expensive and with a limited availability. The best solar cell based on CZTS has
recently reached a conversion efficiency of 6.8% but the material quality still needs to be improved. In this work we
prepare the CZTS films by sulfurization of precursors composed by a multilayer of ZnS, Sn and Cu grown by
evaporation. Precursors with different composition, order of the layers and different sulfurization temperatures are
tested in order to optimize the film quality. The composition and the structural properties of the CZTS films are
characterized by XRD, SEM-EDS and Raman spectroscopy. The samples are further characterized by transmittance
and reflectance measurements in order to obtain an estimate of the absorption coefficient. We find that the absorption
coefficient at low energies increases with increasing Zn content and with increasing sulfurization temperature. These
trends are explained in term of an increase of the disorder in the material.
Conceptualization, design and preliminary usability evaluation of a therapeutic modified ride-on car
Creators: name: Fashina, Oluwaseun Opeyimika
Publisher: name: The University of Texas at Austin
Year: 2022
Subjects: Pediatric
Rehabilitation
Therapy device
Design
Upper limb
Reach and grasp
Usability
Modified car

description: Young children have the highest incidence of Traumatic Brain Injury (TBI), often leaving lasting motor and cognitive deficits. My goal was to address upper limb motor deficits in a versatile, motivating, and affordable manner. There are currently few therapeutic toys available for children with severe impairments for training critical tasks such as reaching and grasping, and maintaining motivation is a constant challenge. Highly motivating motorized cars for kids (ride-on cars) have given children with neuromotor impairments the opportunity to gain independent mobility and have been associated with improvements in social development and engagement. I transformed a ride-on car into an engaging therapeutic tool for training reaching and grasping by modifying push, pull, and twist switches with a set of custom designed handles and knobs. I created an easily adjustable mounting arm to position the switches in an accessible manner. The design was evaluated on two five-year-old children with neuromotor impairments. Both children demonstrated increased usage of the switches. The interchangeable handles and adjustable mounting arm made the switch interface design a feasible way to provide upper limb therapy.
Thin-Film Polycrystalline-Silicon Solar Cells Based on Aluminium-Induced Crystallization and Thermal CVD
Creators: name: Gordon, I.
name: Van Gestel, D.
name: Qiu, Y.
name: Venkatachalam, S.
name: Beaucarne, G.
name: Poortmans, J.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Thin Films Solar Cells
Thin Film Crystalline Silicon Solar Cells and Wafer Equivalents

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 2549-2552
description: The current high price of photovoltaic electricity could be lowered substantially if efficient solar cells
could be made from polycrystalline-silicon (pc-Si) thin films on inexpensive substrates. We recently presented
promising solar cell results on pc-Si layers made by aluminium-induced crystallization (AIC) of amorphous silicon
(a-Si) and thermal chemical vapor deposition (CVD). The advantage of the AIC process is that relatively large grains
can be obtained. In this paper we present a process that yields p-type pc-Si solar cells in substrate configuration on
alumina substrates with efficiencies of up to 8.0%. We show that one of the main efficiency-limiting factors of these
cells is the presence of many electrically active intragrain defects in the layers. Besides dislocations and stacking
faults, 3 boundaries are also found to be electrically active as shown by combining EBSD with EBIC
measurements. The electrical activity of the defects is therefore probably triggered by impurity decoration. Crosssection
TEM measurements show that the intragrain defects are already present in the AIC seed layer and get copied
into the epitaxial layer during epitaxial growth. For pc-Si layers based on AIC and epitaxial growth, the seed layer
has a crucial impact on the intragrain defect formation.
A Dynamic Cell-by-Cell PV System Model to Predict Lifetime Performance and Reliability
Creators: name: Mikofski, M.
name: Anderson, M.
name: Caldwell, S.
name: DeGraaff, D.
name: Hasselbrink, E.
name: Kavulak, D.
name: Lacerda, R.
name: Okawa, D.
name: Shen, Y.-C.
name: Tedjasaputra, A.
name: Terao, A.
name: Xie, Z.
Publisher: name: WIP
Year: 2011
Subjects: Advanced Photovoltaics : New Concepts and Ultra-High Efficiency
Fundamental Studies

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 105-112
description: Predicting lifetime performance of PV systems is critical for determining the cost of solar energy. This
paper introduces a physics-based model that predicts hourly performance, degradation and reliability of SunPower
back-contact cells in a PV system using a series of one-diode cell models and sub-models for all major degradation
modes. Other components such as encapsulant, bypass diodes and solder joints are also modeled. A cell-by-cell
approach enables simulation of degradation modes that depend on cell differences and effects of mismatch caused by
degradation and external stresses. This paper summarizes the degradation mechanisms included in the model, such as
photo-thermal encapsulant degradation, cell degradation from UV, reverse bias and polarization, soiling and failure of
bypass diodes and solder-joints from thermal-cycling. Ambient conditions and PV system configuration are used as
inputs to the model. Predicted and measured average yearly degradation rates agree within 20%. This general
approach can be adapted to different PV systems and can incorporate other degradation and failure mechanisms.
A Novel High Speed Spectral Response Measurement System Based on LED Light Sources
Creators: name: Reetz, W.
name: Erdweg, D.
name: Hilgers, W.
name: Kaienburg, P.
name: Gerber, A.
name: Pieters, B.E.
name: Rau, U.
Publisher: name: WIP
Year: 2011
Subjects: Advanced Photovoltaics : New Concepts and Ultra-High Efficiency
Fundamental Studies

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 113-116
description: In this paper we present a novel high speed quantum efficiency (QE) measurement system based
on LED light sources and lock-in technique for solar cell characterization. The prototype consists of 16 LEDs in
the wavelength range from 386 nm to 966 nm. State-of-the-art monochromator based QE systems typically
require about 10 min for a QE measurement. We demonstrate that our LED QE setup can measure the QE in less
than 10 seconds (data acquisition time without lock-in analysis in the order of 100ms). Moreover, we do not need
movable parts like a mechanical chopper which enhances the life and service time of the new device. We will
briefly discuss the major components of the system, especially the spectral properties of the LED light sources.
The prototype can be used in a serial mode in which the 16 LEDs are operated in sequence and a parallel (flash)
mode in which the LEDs are operated simultaneously. QE measurements of microcrystalline silicon thin film
solar cells (μc-Si:H) and silicon based tandem solar cells (a-Si:H/μc-Si:H) are presented and compared to QE
measurements of established QE systems.