cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Influence of Deposition Parameters on Elemental Concentrations, Electrical, and Optical Properties of Magnetron Co-Sputtered Al-Doped ZnO Films
Creators: name: Gorgulla, A.
name: Ertel, D.-P.
name: Hahn, G.
name: Terheiden, B.
Publisher: name: WIP
Year: 2015
Subjects: THIN FILM SOLAR CELLS AND MODULES
Silicon-based Thin Film and Silicon-Heterojunction Solar Cells and Modules

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 1305-1309
description: We investigate the influence of various deposition parameters on Zn and Al elemental concentrations in
relation to their effect on the optical and electrical properties of co-sputtered Al-doped zinc oxide (ZnO:Al) films. To
determine the Al and Zn concentrations Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) is
applied. It is shown, that the Al doping concentration cAl strongly depends on the deposition parameters and has a strong
influence on the charge carrier density of the films. High Al concentrations of 6.4·1020 and 8.5·1020 cm-3 are obtained
at increased sputtering temperature (450°C) and reduced oxygen flow (6 sccm), respectively, allowing charge carrier
densities Ne up to 2.2·1020 cm-3 and electrical resistivities below 2.0·10-3 cm. However, as opposed to an increased
sputtering temperature, a low oxygen flow significantly reduces the film transparency. The working pressure appears
to have a less profound impact on the Al concentration, but more on the charge carrier mobility and defect density
within the films: an increase from 0.5 to 1.5 mTorr decreases the ratio Ne/cAl, which is a measure for the defect density,
by a factor of seven and simultaneously leads to a decrease of mobility from 29 to 2 cm²V-1s-1. XRD measurements
indicate, that higher working pressure leads to poorer crystallinity.
Finite Gauge Transformations and Geometry in Extended Field Theory
Creators: name: Chaemjumrus, N.
name: Hull, C. M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The recently derived expressions for finite gauge transformations in double field theory with duality group O(d,d) are generalised to give expressions for finite gauge transformations for extended field theories with duality group SL(5,R), SO(5,5) and E6. The generalised metrics are discussed.
description: 24 pages
Electron Beam Induced Etching (EBIE) with High-Purity Hydrogen - an Alternative In-Situ Dry Clean Process for Silicon Surfaces
Creators: name: Bodenstein, E.
name: Temmler, D.
Publisher: name: WIP
Year: 2015
Subjects: THIN FILM SOLAR CELLS AND MODULES
Silicon-based Thin Film and Silicon-Heterojunction Solar Cells and Modules

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 1287-1289
description: Despite long-lasting development, high temperature hydrogen bakes and various types of plasma treatments are not
yet generally satisfying as in-situ dry pre-clean steps prior layer deposition on Silicon. Process temperature,
contamination level or the damage of the Si surface are yet too high for sensitive applications. Electron beam induced
etching (EBIE), developed for special nanoelectronic applications, works at low temperatures, is non-destructive,
therefor EBIE could be an alternative dry pre-clean process. Especially EBIE with pure hydrogen is indicated as a
possible candidate for a very high purity, non-toxic in-situ dry clean, which additionally passivates the Si surface very
well. Development results for such a hydrogen based EBIE based pre-clean step are reported. Typical as well as
critical issues of the EBIE process are included, like melt threshold of the electron beam current load, substrate
damage near melt threshold at low scan speed, sublimation and chemical EBIE modes and the electron flux
controlled transition to carbon layer electron beam induced deposition (EBID), if hydrocarbons are contained in the
vacuum chamber. The hydrogen based EBIE pre-clean could be the starting step of an integrated process sequence
for various microelectronic and thin film applications including photovoltaic Si wafer technology.
Is Downloading This App Consistent with My Values? Conceptualizing a Value-Centered Privacy Assistant
Creators: name: Carter, Sarah E.
Publisher: name: Zenodo
Year: 2021
Subjects: privacy assistant
mobile applications
values

description: This presentation preliminarily explores how a value-centered privacy assistant (VcPA) could enhance user value expression by utilizing three user scenarios in the context of considering whether to download an environmental application. IFIP Conference presentation for: Associated Paper
Capacitance and Admittance Studies on Metastable and Sodium-Related Defects in Cu(In,Ga)(S,Se)2 Thin Film Solar Cell
Creators: name: Kato, T.
name: Kitani, K.
name: Sugimoto, H.
Publisher: name: WIP
Year: 2015
Subjects: THIN FILM SOLAR CELLS AND MODULES
CdTe, CIS and Related Ternary and Quaternary Thin Film Solar Cells and Modules

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 1280-1283
description: In Cu(In,Ga)(S,Se)2 (CIGS) solar cell, both light soaking and Na addition are known to be beneficial especially by increasing its carrier density. In this study, the metastable defects related to the light-soaking and the Na-related defects were investigated by means of capacitance-voltage, drive-level capacitance profiling, and admittance spectroscopy. Under the light-soaking treatment, a 1:1 relation between the carrier density and the defect density was observed as previously reported and it is in good agreement with the model for the metastability effect based on the (VSe – VCu) divacancy complex. In contrast, under the Na-depletion treatment, the defect density drops more strongly than the carrier density. This is probably due to the combination of multiple defects such as NaCu, VCu, and In(Ga)Cu DX center.
3D Camera-Based System for Measurements of Scattered or Emitted Light
Creators: name: Jošt, M.
name: Krc, J.
name: Topic, M.
Publisher: name: WIP
Year: 2015
Subjects: THIN FILM SOLAR CELLS AND MODULES
Silicon-based Thin Film and Silicon-Heterojunction Solar Cells and Modules

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 1293-1296
description: A novel system for measurement of a three-dimensional angular distribution function (3D ADF) of
scattered (or emitted light) using a digital camera is presented. The 3D ADF can be determined from the digital image
captured from a reflective or transmissive flat screen in single shot. With the developed camera-based system we can
quantify transmitted or reflected light scattered by textured samples (or emitted light from light sources) in a few
seconds. The camera-based system setup is presented and the transformations of the captured digital image to obtain
the 3D ADF are explained. The system was used to characterize the light scattering of two different transparent
conductive oxides on glass and a white diffusing glass. The developed system is validated with the measurement results
carried out with a conventional goniometric angular resolved scattering system.
Advanced R&D Platform for Highest Efficient CIGS-Modules
Creators: name: Cord, B.
name: Amrein, A.
name: Fürfanger, M.
name: Weiß, O.
name: Schmalstieg, A.
Publisher: name: WIP
Year: 2015
Subjects: THIN FILM SOLAR CELLS AND MODULES
CdTe, CIS and Related Ternary and Quaternary Thin Film Solar Cells and Modules

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 1266-1270
description: The ongoing need for the increase of the photoelectric efficiency, the improvement of the manufacturing process and the reduction of the production costs for photovoltaic modules can only be addressed by intensifying PV-research activities. In a project of four industrial partners various new concepts have been developed for the fabrication of copper-indium-gallium-diselenide (CIGS) based 300x300mm² solar panels. The investigated CIGS process route follows the so called two step approach where the precursor layer stack is deposited on the molybdenum coated glass substrate and subsequently heated in a rapid thermal processing (RTP) oven to form the polycrystalline Cu(In,Ga)(S,Se)2 semiconductor (CIGSSe). The research objectives were: New process flows by combining different steps, new inline RTP-concepts for higher module efficiency, reduced electrical power consumption, increased throughput and thus enabled significant lower manufacturing costs per watt. Furthermore new heating concepts have been developed allowing RTP-annealing temperatures of up to 650 °C including a new infrared heater generation for higher operation temperatures. The process modules are arranged as a cluster tool equipped with an innovative twin-tube X-ray fluorescence spectrometer (XRF) to measure the layer composition and an in-situ X-ray diffractometer (XRD) to monitor the CIGSSe crystal phase transformations.
Periodicity of chaotic solutions
Creators: name: Berezowski, Marek
name: Kulik, Bozena
Publisher: name: arXiv
Year: 2016
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The scope of the paper is the analysis of the impact of flow reversal on the dynamics of cascades of reactors. Periodic and chaotic oscillations occur in the analyzed system. There is a dependence between the oscillation period of the state variable of the system without flow reversal and the recurrence period of windows of chaos in the steady-state diagram of the system with flow reversal.
description: 7 pages, 6 figures, published in the Chaos, Solitons and Fractals, Volume 40, Issue 1, 2009
A Deep Search for Additional Satellites around the Dwarf Planet Haumea
Creators: name: Burkhart, Luke D.
name: Ragozzine, Darin
name: Brown, Michael E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Haumea is a dwarf planet with two known satellites, an unusually high spin rate, and a large collisional family, making it one of the most interesting objects in the outer solar system. A fully self-consistent formation scenario responsible for the satellite and family formation is still elusive, but some processes predict the initial formation of many small moons, similar to the small moons recently discovered around Pluto. Deep searches for regular satellites around KBOs are difficult due to observational limitations, but Haumea is one of the few for which sufficient data exist. We analyze Hubble Space Telescope (HST) observations, focusing on a ten-consecutive-orbit sequence obtained in July 2010, to search for new very small satellites. To maximize the search depth, we implement and validate a non-linear shift-and-stack method. No additional satellites of Haumea are found, but by implanting and recovering artificial sources, we characterize our sensitivity. At distances between $\sim$10,000 km and $\sim$350,000 km from Haumea, satellites with radii as small as $\sim$10 km are ruled out, assuming an albedo ($p \simeq 0.7$) similar to Haumea. We also rule out satellites larger than $\gtrsim$40 km in most of the Hill sphere using other HST data. This search method rules out objects similar in size to the small moons of Pluto. By developing clear criteria for determining the number of non-linear rates to use, we find that far fewer shift rates are required ($\sim$35) than might be expected. The non-linear shift-and-stack method to discover satellites (and other moving transients) is tractable, particularly in the regime where non-linear motion begins to manifest itself.
Conformal Laplace superintegrable systems in 2D: polynomial invariant subspaces
Creators: name: Escobar-Ruiz, M. A.
name: Miller, Willard
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 81Rxx, 33Cxx, 33C45

description: 2nd-order conformal superintegrable systems in $n$ dimensions are Laplace equations on a manifold with an added scalar potential and $2n - 1$ independent 2nd order conformal symmetry operators. They encode all the information about Helmholtz (eigenvalue) superintegrable systems in an efficient manner: there is a 1-1 correspondence between Laplace superintegrable systems and Stackel equivalence classes of Helmholtz superintegrable systems. In this paper we focus on superintegrable systems in two dimensions, $n = 2$, where there are 44 Helmholtz systems, corresponding to 12 Laplace systems. For each Laplace equation we determine the possible 2-variate polynomial subspaces that are invariant under the action of the Laplace operator, thus leading to families of polynomial eigenfunctions. We also study the behavior of the polynomial invariant subspaces under a Stackel transform. The principal new results are the details of the polynomial variables and the conditions on parameters of the potential corresponding to polynomial solutions. The hidden gl_3-algebraic structure is exhibited for the exact and quasi-exact systems. For physically meaningful solutions, the orthogonality properties and normalizability of the polynomials are presented as well. Finally, for all Helmholtz superintegrable solvable systems we give a unified construction of 1D and 2D quasi-exactly solvable potentials possessing polynomial solutions, and a construction of new 2D PT-symmetric potentials is established.
description: 28 pages
Detecting Nontrilocal Correlations In Triangle Networks
Creators: name: Mukherjee, Kaushiki
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Correlations in quantum networks with independent sources exhibit a completely novel form of nonclassicality in the sense that the nonlocality of such correlations can be demonstrated in fixed local input scenarios. Before the pioneering work by M.O.Renou, et al., in [1], the nonlocal feature of such network correlations was directly attributable to standard Bell nonlocality. In [1], the authors provided some of the first examples of triangle network correlations, whose nonlocality cannot be deduced from Bell-CHSH nonlocality. To date, a complete characterization of such scenarios is yet to be provided. Present work characterizes correlations arising due to fixed local measurements in a triangle network under a source independence assumptions. Precisely speaking, a set of criteria is framed in the form of Bell-type inequalities, each of which is necessarily satisfied by trilocal correlations. Possible quantum violation of at least one criterion from the set is analyzed, which in turn points out the utility of the set of criteria to detect nonlocality (nontrilocality) in quantum triangle networks. Interestingly, measurement on a local product state basis turns out to be sufficient to generate nontrilocal correlations in some quantum networks. Noise tolerance of the detection criteria is discussed followed by a generalization of the framework for demonstrating correlations in any n-sided polygon where n is finite.
description: Published in Physical Review A. Version close to the published version
Design and Optimal Configuration of Full-Duplex MAC Protocol for Cognitive Radio Networks Considering Self-Interference
Creators: name: Tan, Le Thanh
name: Le, Long Bao
Publisher: name: arXiv
Year: 2015
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: In this paper, we propose an adaptive Medium Access Control (MAC) protocol for full-duplex (FD) cognitive radio networks in which FD secondary users (SUs) perform channel contention followed by concurrent spectrum sensing and transmission, and transmission only with maximum power in two different stages (called the FD sensing and transmission stages, respectively) in each contention and access cycle. The proposed FD cognitive MAC (FDC-MAC) protocol does not require synchronization among SUs and it efficiently utilizes the spectrum and mitigates the self-interference in the FD transceiver. We then develop a mathematical model to analyze the throughput performance of the FDC-MAC protocol where both half-duplex (HD) transmission (HDTx) and FD transmission (FDTx) modes are considered in the transmission stage. Then, we study the FDC-MAC configuration optimization through adaptively controlling the spectrum sensing duration and transmit power level in the FD sensing stage where we prove that there exists optimal sensing time and transmit power to achieve the maximum throughput and we develop an algorithm to configure the proposed FDC-MAC protocol. Extensive numerical results are presented to illustrate the characteristic of the optimal FDC-MAC configuration and the impacts of protocol parameters and the self-interference cancellation quality on the throughput performance. Moreover, we demonstrate the significant throughput gains of the FDC-MAC protocol with respect to existing half-duplex MAC (HD MAC) and single-stage FD MAC protocols.
description: To Appear, IEEE Access, 2015
De største forhindringer ligger meget tit i os selv.
Creators: name: Kappelgaard, Lisbeth
Publisher: name: Akademisk kvarter | Academic Quarter
Year: 2020

description: Since the 1950s, the number of hospitals in Denmark has fallen from approx. 150 to approx. 30 and the average number of days for hospitalized patients has been reduced from 20 to 4 days. At the same time, the number of medical specialties has increased. Thus, the patient’s contact with the healthcare system becomes both more volatile and more complex. To reduce the patient’s experience of complexity patient involvement has become an increasingly important political topic. With theoretical and methodological inspiration from discourse studies and studies of heroism, the article sheets light on how the articulated use of ‘warranting voices’, categorizations and interpretive repertoires construct a specific patient-behavior and -agency in ways which has significant situational and character wise similarities with the construction of heroes.
description: Akademisk kvarter | Academic Quarter, No. 20 (2020): Heroisme | Heroism
HI emission and absorption in nearby, gas-rich galaxies II. -- sample completion and detection of intervening absorption in NGC 5156
Creators: name: Reeves, S. N.
name: Sadler, E. M.
name: Allison, J. R.
name: Koribalski, B. S.
name: Curran, S. J.
name: Pracy, M. B.
name: Phillips, C. J.
name: Bignall, H. E.
name: Reynolds, C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the results of a survey for intervening 21cm HI absorption in a sample of 10 nearby, gas-rich galaxies selected from the HI Parkes All-Sky Survey (HIPASS). This follows the six HIPASS galaxies searched in previous work and completes our full sample. In this paper we searched for absorption along 17 sightlines with impact parameters between 6 and 46 kpc, making one new detection. We also obtained simultaneous HI emission-line data, allowing us to directly relate the absorption-line detection rate to the HI distribution. From this we find the majority of the non-detections in the current sample are because sightline does not intersect the HI disc of the galaxy at sufficiently high column density, but that source structure is also an important factor. The detected absorption-line arises in the galaxy NGC 5156 ($z = 0.01$) at an impact parameter of 19 kpc. The line is deep and narrow with an integrated optical depth of 0.82 km s$^{-1}$. High resolution Australia Telescope Compact Array (ATCA) images at 5 and 8 GHz reveal that the background source is resolved into two components with a separation of 2.6 arcsec (500 pc at the redshift of the galaxy), with the absorption likely occurring against a single component. We estimate that the ratio of the spin temperature and covering factor, $T_{\mathrm{S}}/f$, is approximately 950 K in the outer disc of NGC 5156, but further observations using VLBI would allow us to accurately measure the covering factor and spin temperature of the gas.
description: 31 pages, 11 figures
XPS Se 3d Peak at 59 eV for Na Diffused in Bridgman CuInSe2+x
Creators: name: Park, S.
name: Champness, C.H.
name: Shih, I.
Publisher: name: WIP
Year: 2015
Subjects: THIN FILM SOLAR CELLS AND MODULES
CdTe, CIS and Related Ternary and Quaternary Thin Film Solar Cells and Modules

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 1238-1242
description: Using stoichiometric p-type samples of Bridgman-grown CuInSe2, elemental sodium was diffused into the surface, within an ampoule under vacuum, causing conversion of the samples to n-type to a depth of more than 100 microns from the surface. The amount of Na diffused in was monitored by the intensity of the XPS Na 1s peak at a binding energy of 1,071 eV. As a result, a single XPS Se 3d peak was observed at 54.5 eV but, after subsequent annealing the same samples in air in a sealed ampoule at 200 °C for 1 hour, a second Se 3d peak appeared at a binding energy of 59 eV. This peak was also seen earlier in Bridgman CuInSe2, where Na was introduced into the melt prior to compound synthesis, for ingots stored for a long time in air. The 59 eV peak has been assigned to Na2SeO3, created by oxidation of Na2Se, itself formed by the combination of sodium with selenium destined for the creation of the CuInSe2. As a consequence, the resulting chalcopyrite becomes stoichiometrically selenium deficient and hence n-type. From the measured n/p junction depths, an estimate of the diffusion coefficient was made in the range of 10-10 to 10-8 cm2/sec for sodium in multi-crystalline CuInSe2 at 250 °C.
Dark solitons in the Lugiato-Lefever equation with normal dispersion
Creators: name: Parra-Rivas, Pedro
name: Knobloch, Edgar
name: Gomila, Damia
name: Gelens, Lendert
Publisher: name: arXiv
Year: 2016
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The regions of existence and stability of dark solitons in the Lugiato-Lefever model with normal chromatic dispersion are described. These localized states are shown to be organized in a bifurcation structure known as collapsed snaking implying the presence of a region in parameter space with a finite multiplicity of dark solitons. For some parameter values dynamical instabilities are responsible for the appearance of oscillations and temporal chaos. The importance of the results for understanding frequency comb generation in microresonators is emphasized.
description: 18 pages, 22 figures
Quantitative Analysis of Matrix Elements and Sodium in Photovoltaic Cu(In, Ga)Se2 Thin Films by the Use of Time-of-Flight Secondary Ion Mass Spectrometry
Creators: name: Kaufmann, K.
name: Wahl, S.
name: Meyer, S.
name: Jarzembowski, E.
name: Hagendorf, C.
Publisher: name: WIP
Year: 2015
Subjects: THIN FILM SOLAR CELLS AND MODULES
CdTe, CIS and Related Ternary and Quaternary Thin Film Solar Cells and Modules

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 1256-1261
description: The efficiency of CIGS solar cells is strongly related to a quantitative control of the elemental
composition of photovoltaic thin film systems. In the case of Cu(In,Ga)Se2 thin film solar cells variations of the Ga
and In stoichiometry within the ab-sorber layers are one important key parameter. Additionally, the spatial
distribution of Na is of great interest because local enrichments of Na within the grain structure have a large effect on
solar cell efficiencies. In the present study, we investigate the elemental composition of Cu(In,Ga)Se2 thin film solar
cells based on secondary ion intensities in Time-of-Flight Secondary Ion Mass Spectrometry (ToF-SIMS) depth
profiling, providing high sensitivities and high spatial resolution. For semi quantitative elemental analysis of
Cu(In,Ga)Se2 thin films the detection of MCs+-Clusters is used and compared to depth profiles acquired with X-ray
photoelectron spectroscopy (XPS). Correlation plots of the intensities of GaCs+ and InCs+ indicate that there is no
relevant matrix effect for In and Ga due to changes in stoichiometry in the layer. Additionally, Inductively Coupled
Plasma Mass Spectrometry (ICP-MS) measurements show a strong correlation between the ratio of the bulk
concentrations of Ga and In and the ratio of integrated ToF-SIMS intensities of GaCs+ and InCs+ therefore
supporting the quantitative interpretation of MCs+ data. Furthermore, the total concentration of Na is estimated
within the complete Cu(In,Ga)Se2 layer stack using ICP-MS. Of particular interest is the depth dependent distribution
of Na, especially the amount of Na located at layer interfaces. The depth dependent Na concentration is investigated
while considering beam induced migration effects and possible interface agglomerations.
Characterization of Na Depleted Cu(In,Ga)(S,Se)2 Thin-Film Solar Cell
Creators: name: Kitani, K.
name: Kato, T.
name: Sugimoto, H.
Publisher: name: WIP
Year: 2015
Subjects: THIN FILM SOLAR CELLS AND MODULES
CdTe, CIS and Related Ternary and Quaternary Thin Film Solar Cells and Modules

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 1277-1279
description: We have studied Na-depletion effects on Cu(In,Ga)(S,Se)2 solar cell using various characterization
techniques to explore the role of Na and how it affects the cell characteristics. The depletion of Na concentration
causes the degradation of entire device parameters, especially Voc, and the reduction of the acceptor density (NA) and
the minority carrier lifetime (e). On the other hand, the activation energy of recombination estimated from an
extrapolation of measured Voc(T) data at 0 K was not influenced by the Na-depletion, which indicates that Shockley-
Read-Hall recombination in the space-charge region (SCR) is still the dominant mechanism. Furthermore, the
recombination rate analysis suggests that the recombination rate in the SCR and quasi-neutral region (QNR)
increased by the Na-depletion. This was consistently explained by the reduction of NA and e. Therefore, the
incorporated Na increases Voc through the reduction of recombination in the SCR and the QNR due to the
enhancement of NA and e.
MPEC 2023-S254 : 2023 SW7
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 SW7

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Hybrid functional investigation of theincorporation of sodium and potassium inCuInSe2 and Cu2ZnSnSe4
Creators: name: Ghorbani, E.
name: Kiss, J.
name: Mirhosseini, H.
name: Kühne, T.
name: Felser, C.
Publisher: name: WIP
Year: 2015
Subjects: THIN FILM SOLAR CELLS AND MODULES
CdTe, CIS and Related Ternary and Quaternary Thin Film Solar Cells and Modules

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 1271-1273
description: Based on empirical observations, it is widely accepted that extrinsic
sodium and potassium impurities play a major role in the efficiency
of solar cells based on CuInSe2 (CISe) and in the structurally similar
Cu2ZnSnSe4 (CZTSe) light absorber materials. However, so far there is
only little known about the most stable inclusion sites, thermodynamics
and kinetics of such Na and K-related defects. To shed more light
on the energetics on the effect of Na and K impurities, we have investigated
the incorporation of Na and K in CuInSe2 (CISe) and Cu2ZnSnSe4
(CZTSe) via hybrid functional calculations. To achieve a comprehensive
overview, we have considered a wide variety of lattice sites as potential
defect positions. According to our results, among substitutional positions
the Cu-sublattice is the most likely to be occupied by Na and K in CISe
and CZTSe. A comparison between tetrahedrally coordinated and octahedrally
coordinated interstitial sites reveals that, forming tetrahedrally
coordinated Na and K interstitials is energetically more favorable. In both
CISe and CZTSe, the formation energy of Na-defects are lower than the
formation of K-defects. Thus, if a site is already occupied by Na, than
the K introduced into the cell via post-treatment cannot substitute Na
easily. Among three possible dumbbells, i.e. (Na-Na), (Na-K) and (K-K)
dumbbells, the creation of (Na-Na) dumbbells is energetically the most
favorable both in CISe and CZTSe. Formation of VSe-related defects is
highly unlikely in CISe and CZTSe.
Heltens teleologiske potentiale.
Creators: name: Riis, Anne Holm
Publisher: name: Akademisk kvarter | Academic Quarter
Year: 2020

description: Heroes can be of many types, and they can have many functions. A common trait that they all share, however, is that they represent an ideal for their followers. Ideals can serve as a driving force in people’s lives and help foster individual development. The current article examines the teleological potential of heroes and its impact on individuals’ life goals. The perspective of the article is philosophical, focussing predominantly on Gadamer’s philosophical hermeneutics. From this perspective, the paper explores how heroes can impact their followers to make life-changing decisions. The article therefore includes an analysis of how heroes affect the interplay between their followers’ past and future. The questions of history and culture, including socialization and social heritage, also form an important part of the discussion.
description: Akademisk kvarter | Academic Quarter, No. 20 (2020): Heroisme | Heroism
Limiting Self-Propagating Malware Based on Connection Failure Behavior through Hyper-Compact Estimators
Creators: name: Zhou, You
name: Zhou, Yian
name: Chen, Shigang
name: Kreidl, O. Patrick
Publisher: name: arXiv
Year: 2016
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Self-propagating malware (e.g., an Internet worm) exploits security loopholes in software to infect servers and then use them to scan the Internet for more vulnerable servers. While the mechanisms of worm infection and their propagation models are well understood, defense against worms remains an open problem. One branch of defense research investigates the behavioral difference between worm-infected hosts and normal hosts to set them apart. One particular observation is that a worm-infected host, which scans the Internet with randomly selected addresses, has a much higher connection-failure rate than a normal host. Rate-limit algorithms have been proposed to control the spread of worms by traffic shaping based on connection failure rate. However, these rate-limit algorithms can work properly only if it is possible to measure failure rates of individual hosts efficiently and accurately. This paper points out a serious problem in the prior method. To address this problem, we first propose a solution based on a highly efficient double-bitmap data structure, which places only a small memory footprint on the routers, while providing good measurement of connection failure rates whose accuracy can be tuned by system parameters. Furthermore, we propose another solution based on shared register array data structure, achieving better memory efficiency and much larger estimation range than our double-bitmap solution.
description: International Journal of Network Security & Its Applications (IJNSA) Vol.8, No.1, January 2016
Agnes Slott-Møller og heroisk nostalgi
Creators: name: Christensen, Jørgen Riber
Publisher: name: Akademisk kvarter | Academic Quarter
Year: 2020

description: “Agnes Slott-Møller and Heroic Nostalgia” addresses this Danish symbolist artist’s production of medieval heroic subjects and their place and function in her contemporary political and ideological context. Her monumental oil paintings depict Danish medieval kings and heroes, and her extensive writings advocate the role of the heroic national leader as a necessity to shape history and to defend the independence of the national Danish state. In the article, her conception of the hero, king and poet, is compared with Thomas Carlyle’s ideas and with Georg Brandes’ aristocratic radicalism. The research question is whether her nostalgia for the Middle Ages, which includes numerous paintings with folk ballads motifs, is simply backward looking and escapist; but in the light of theories about nostalgia (Boym, Smith & Campbell) it is argued that her aesthetic form of nostalgia is radical and an expression of her political commitment as a woman artist to her contemporary world.
description: Akademisk kvarter | Academic Quarter, No. 20 (2020): Heroisme | Heroism
Local Measurements of Photocurrent and Band Gap in CdTe Solar Cells
Creators: name: Yoon, Y.
name: Chae, J.
name: Katzenmeyer, A.
name: Yoon, H.
name: Schumacher, J.
name: An, S.
name: Centrone, A.
name: Zhitenev, N.
Publisher: name: WIP
Year: 2015
Subjects: THIN FILM SOLAR CELLS AND MODULES
CdTe, CIS and Related Ternary and Quaternary Thin Film Solar Cells and Modules

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 1243-1245
description: Polycrystalline thin film technology has shown great promise for low cost, high efficiency photovoltaics. To further increase the power efficiency, a better understanding of microstructural properties of the devices is required. In this work, we investigate the inhomogeneous electrical and optical properties using local excitation techniques that generate excess carriers by a near-field light illumination or by a focused electron beam irradiation. The spatially-resolved photocurrent images of n-CdS / p-CdTe devices obtained by both techniques show high carrier collection efficiencies at grain boundaries. A novel and complementary technique, photothermal induced resonance (PTIR), is also used to obtain absorption spectra and maps in the near-field over a broad range of wavelengths. In PTIR a wavelength tunable pulsed laser is used in combination with an atomic force microscope tip to detect the local thermal expansion induced by light absorption. Sub-micrometer thick lamella samples of CdTe solar cells are measured, and the variation of local band-gap is analyzed. We discuss the resolution and the sensitivity of the techniques in the range of photon energies close to the band gap.
Keywords: photothermal induced resonance (PTIR), CdTe solar cells, band-gap, scanning photocurrent microscopy (SPCM), near-field scanning optical microscopy (NSOM)
PT-Symmetric Model of Immune Response
Creators: name: Bender, Carl M.
name: Ghatak, Ananya
name: Gianfreda, Mariagiovanna
Publisher: name: arXiv
Year: 2016
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The study of PT-symmetric physical systems began in 1998 as a complex generalization of conventional quantum mechanics, but beginning in 2007 experiments began to be published in which the predicted PT phase transition was clearly observed in classical rather than in quantum-mechanical systems. This paper examines the PT phase transition in mathematical models of antigen-antibody systems. A surprising conclusion that can be drawn from these models is that a possible way to treat a serious disease in which the antigen concentration is growing out of bounds (and the host will die) is to inject a small dose of a second (different) antigen. In this case there are two possible favorable outcomes. In the unbroken-PT-symmetric phase the disease becomes chronic and is no longer lethal while in the appropriate broken-PT-symmetric phase the concentration of lethal antigen goes to zero and the disease is completely cured.
description: 15 pages, 17 figures
High Open Circuit Voltage Pure Sulfide CIGS Submodule
Creators: name: Hiroi, H.
name: Iwata, Y.
name: Adachi, S.
name: Sugimoto, H.
Publisher: name: WIP
Year: 2015
Subjects: THIN FILM SOLAR CELLS AND MODULES
CdTe, CIS and Related Ternary and Quaternary Thin Film Solar Cells and Modules

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 1274-1276
description: Previously, 14.0% efficiency on pure-sulfide CuInGaS2 single cell was reported by Solar Frontier
K.K.[1]. Regarding open circuit voltage, 960 mV was achieved. In this work, we tried the development of the puresulfide
CuInGaS2 submodule via monolithic structure. For the fabrication, vacuum-based processes were used for a
deposition of a Mo back electrode and a metal precursor. The pure-sulfide CuInGaS2 absorber layer was formed by a
high-temperature annealing with sulfur containing gas. Then CdS buffer layer, intrinsic ZnO and InSnO window layers
were deposited by chemical bath deposition and vacuum-based process, respectively. A monolithically integrated
structure with seven series connections was introduced by laser and mechanical patterning. As a result, the efficiency of
13.2 % and the open-circuit voltage of 850mV on pure-sulfide CuInGaS2 thin-film submodule with anti-reflection coating
has been achieved. It seems to be the first module of high performance pure-sulfide CuInGaS2 over 13.0% efficiency
without KCN-etching treatment in the world.
(Re-)presentation of Everyday Heroes in German Post-war Newsreels (West-East)
Creators: name: Lehnert, Dr Sigrun
Publisher: name: Akademisk kvarter | Academic Quarter
Year: 2020

description: In the post-war period, life was challenging and required people to stand up for the community. In the two German states, however, different views of community were propagated by the media. In the 1950s and 1960s, film coverage of the cinema newsreels offered moving images for people who had no access to television. Reports underscored by music and commentary allowed political interpretations. In the GDR, persons and groups were honoured by the narrative of the newsreel Der Augenzeuge: for example, when students and administrative staff helped the farmers during harvest time. In this way, a ‘heroic sense of community’ was transferred to all ‘labourers’ in the community. In the West German newsreels, heroes took action in traffic or at work in dicey situations. They are role models too, but they are not meant to instigate the communities’ imitation but serve education. The article aims to show the patterns and intentions of the filmic presentation of ‘normal people’ as heroes in Germany.
description: Akademisk kvarter | Academic Quarter, No. 20 (2020): Heroisme | Heroism
Project UP Data Management Plan Quantitative Data
Creators: name: Enthoven, Clair
Publisher: name: Erasmus University Rotterdam (EUR)
Year: 2023
Subjects: classificationCode: 420210
subject: Social epidemiology
classificationCode: 420606
subject: Social determinants of health
classificationCode: 520302
subject: Clinical psychology

description: Project UP Data Management Plan Quantitative Data Project UP aims to obtain knowledge on risk and protective mechanisms that play a role in unintended pregnancies. For data analyses, we will (re-)use readily available data from the Generation R cohort, a study of families in multi-ethnic Rotterdam. Specifically, we examine: Who is at risk for an unintended pregnancy, and how do risk factors cluster together? Which factors predict the non-use of contraceptives? What factors explain the link between unintended pregnancies and negative outcomes in children? What factors protect against the negative outcomes of unintended pregnancies?
An efficacy evaluation for the mammographic component of breast screening at the Victorian pilot program
Creators: name: Cawson, Jennifer N.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Effect of Microstructure on Chlorine Activation of CdTe Thin Film Solar Cells
Creators: name: Zywitzki, O.
name: Modes, T.
name: Dienel, M.
name: Morgner, H.
name: Metzner, C.
name: Schwuchow, E.
Publisher: name: WIP
Year: 2015
Subjects: THIN FILM SOLAR CELLS AND MODULES
CdTe, CIS and Related Ternary and Quaternary Thin Film Solar Cells and Modules

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 1210-1215
description: CdTe thin film solar cells were deposited by close-space sublimation (CSS) at substrate temperatures of
310 °C (low temperature) and 500 °C (high temperature). The microstructure of the layers was investigated on ionpolished
cross sections of the solar cells by field emission scanning electron microscopy (FE-SEM). The low
temperature CdTe layer is characterized by a columnar microstructure with lateral grain sizes between 0.2 and 0.7 μm
in direction of layer growth and some porosity at grain boundaries. In contrast, the high temperature CdTe layer exhibits
a dense, block-like microstructure with large grains between 1 and 2 μm.
After CdCl2 activation process the low temperature layer is recrystallized into a globulitic microstructure with a mean
grain size of 1.2 μm, whereas no significant change in microstructure was observed for the high temperature layer. It
can be shown by glow discharge optical emission spectrometry (GD-OES) that the low temperature CdTe layer contains
a drastically higher chlorine content than the high temperature layer. This result can be explained by higher amount of
grain boundary diffusion and simultaneous recrystallization of low temperature CdTe layer during activation treatment.
The different grain structures have also a strong influence on the registered electron beam induced current (EBIC)
signal distribution. The low temperature CdTe layer exhibits a relative homogenous EBIC signal after activation
treatment, whereas for the high temperature CdTe layer the grain boundary near regions deliver a drastically higher
EBIC signal.
Heroes of Nordic Masculinity in Consumer Culture Mythology
Creators: name: Andersen, Lars Pynt
Publisher: name: Akademisk kvarter | Academic Quarter
Year: 2020

description: Consumer culture offers an increasingly important context for studying how heroism constructs important discursive positions and boundaries of the lifeworld of consumers. When heroism is used in advertising in order to connect brands with mythologies of national identity or the culturally ‘appropriate’ expression of ‘heroic masculinity’, it has real consequences for the choices afforded males of that culture (Avery 2012, Gentry and Harrison 2010; Molander et al 2019). Recent trends in popular culture has highlighted ‘Nordicness’ as a theoretical perspective for understanding consumer culture (Østergaard et al 2014). The hero imagery and mythology in Nordic consumer culture seem to offer culturally specific masculine hero-mythologies: the stay-at-home father (on paternal leave), the nurturing-rebel-action hero, the ironic-anti-hero. Two very distinct examples of advertising are analysed and compared to unpack the Nordic Masculine Hero (and Anti-Hero).
description: Akademisk kvarter | Academic Quarter, No. 20 (2020): Heroisme | Heroism
Laser Ablation Process for Rear-Side Contact Preparation of Photovoltaic Films Based on CZTS Powder
Creators: name: Peharz, G.
name: Satzinger, V.
name: Krabb, P.
name: Neisser, A.
Publisher: name: WIP
Year: 2015
Subjects: THIN FILM SOLAR CELLS AND MODULES
CdTe, CIS and Related Ternary and Quaternary Thin Film Solar Cells and Modules

description: 31st European Photovoltaic Solar Energy Conference and Exhibition; 1207-1209
description: A unique approach for producing photovoltaic foils has been developed by the company crystalsol. The technology is based on quaternary mono crystalline Cu2ZnSnS4 semiconductor grains (CZTS) embedded in a polymer film. The embedded grains need to be excavated and the buffer layer on the grains needs to be removed before back contact application. This can be done by applying a mechanical abrasion process such as polishing. In this work we present first results on an alternative process which relies on laser ablation. A laser process based on a ultrafast fs-laser proved to be very feasible for this application and fully functional solar cell devices could be manufactured. Moreover the laser process was much better controllable and allowed a well-defined ablation of the rear side of the photovoltaic film. In addition another laser process was tested which relies on a nanosecond-laser source. In contrast to the fs-laser process the grains are locally melting when treated with the ns-laser source. Also the electrical properties of solar cell devices are poorer than these of devices made with the reference polishing process.
Twin peak quasi-periodic oscillations as signature of oscillating cusp torus
Creators: name: Török, Gabriel
name: Goluchová, Kateřina
name: Horák, Jiří
name: Šrámková, Eva
name: Urbanec, Martin
name: Pecháček, Tomáš
name: Bakala, Pavel
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Serious theoretical effort has been devoted to explain the observed frequencies of twin-peak quasi-periodic oscillations (HF QPOs) observed in low-mass X-ray neutron star binaries. Here we propose a new model of HF QPOs. Within its framework we consider an oscillating torus with cusp that changes location $r_0$ of its centre around radii very close to innermost stable circular orbit. The observed variability is assigned to global modes of accreted fluid motion that may give strong modulation of both accretion disc radiation and the accretion rate. For a given spacetime geometry, the model predicts that QPO frequencies are function of single parameter $r_0$. We illustrate that the model can provide fits of data comparable to those reached by other models, or even better. In particular it is compared to relativistic precession model. Moreover, we also illustrate that the model consideration is compatible with consideration of models of a rotating neutron star in the atoll source 4U~1636-53.
Fall of Princes
Creators: name: Lydgate, John, 1370?-1451?
Publisher: name: University of Victoria Libraries
Year: 2020
Subjects: subject: Mythology
valueUri: http://id.worldcat.org/fast/1031701
subject: Fate and fatalism
valueUri: http://id.worldcat.org/fast/921813
subject: Poetry, Medieval
valueUri: http://id.worldcat.org/fast/1067764
subject: Manuscripts, Medieval
valueUri: http://id.worldcat.org/fast/1008422

description: The Fall of Princes, produced around 1480, is a work by John Lydgate (ca.1370-1451) on the fortunes of famous people and how fate brought about their downfall. Lydgate based his text on a similar work by Boccaccio.