cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Measuring a cross-sectional sample of students’ intentions to engage with science and modelling associations according to two theoretical perspectives
Creators: name: Summers, Ryan
name: Wang, Shuai
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Physiology
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: Social cognitive career theory (SCCT) and the theories of reasoned action and planned behaviour (TRAPB) have both guided studies seeking to explain students’ intentions and decisions related to future science engagement. The purpose of this study was to simultaneously validate measures for these two social psychological models and closely examine these constructs and their associations. Students were sampled in two groups, across grades 5 through 10, from rural schools in the United States (N = 538). Each group was administered two sets of measures, and each set of measures was associated with a theoretical model, and included corresponding sub-scales suitable for self-report. Respondents also supplied information about a common set of predictor variables based on a review of the literature. Structural equation modelling was used to examine the constructs more closely. Results from confirmatory factor analysis were generally consistent with the theoretical structures. Multiple indicators multiple causes (MIMIC) models were generated to compare SCCT and TRAPB, including associations between factors and variables. Associations between common predictor variables like race and gender differed between the MIMIC models. Frequency of talk with family members, perceived science ability, gender, and race were all significantly associated with multiple factors in both the SCCT- and TRAPB-aligned models.
Assessment of the Rear Irradiance on Bifacial Silicon PV Modules
Creators: name: Lopez-Garcia, J.
name: Gali, R.S.R.
name: Grau-Luque, E.
name: Kenny, R.P.
name: Sample, T.
Publisher: name: WIP
Year: 2019
Subjects: Photovoltaic Modules and BoS Components
PV Module Design, Manufacture, Performance and Reliability

description: 36th European Photovoltaic Solar Energy Conference and Exhibition; 901-908
description: Bifacial crystalline silicon photovoltaic (PV) modules are attracting considerable interest due to their enhanced performance in comparison to traditional monofacial PV modules, as both sides of the cell can absorb solar radiation. The IEC Technical Specification (TS) IEC TS 60904-1-2 for the measurement of current-voltage characteristics of bifacial photovoltaic devices is now published. The TS proposes control measures such as reducing the rear irradiance with a non-reflective material behind the module for indoor measurements or reducing the rear irradiance non-uniformity below 10% for outdoor characterisation. However, the TS does not specify the practical details on how to perform these requirements and the influence on the output performance in case of deviations. This paper focuses on the suitable distance of the rear non-reflective material and its influence on the rear irradiance and output power, as well as on the influence of the deviation of the rear irradiance nonuniformity under natural sunlight. It is shown that the deviation from the requirements on indoor conditions has a small significance on the Pmax but a larger influence and uncertainty for outdoor measurements.
Synthesis and Study of Loss Kinetics of Photogenerated Current Carriers in Cu2ZnSn(SхSe1-х)4 Solid Solutions
Creators: name: Rabenok, E.V.
name: Rakitin, V.V.
name: Golovanov, B.I.
name: Novikov, G.F.
name: Gremenok, V.F.
name: Khoroshko, V.V.
name: Pyatlitski, A.N.
Publisher: name: WIP
Year: 2019
Subjects: Perovskites, other Non-Silicon-Based Photovoltaics and Multi-Junction Devices
CI(G)S, CdTe and Related Thin Film Solar Cells

description: 36th European Photovoltaic Solar Energy Conference and Exhibition; 679-680
description: The Cu2ZnSn(SxSe1–x)4 semiconductor materials – perspective compounds used as absorbing layers in thin film solar cells – were synthesized by single-temperature method from Cu, Zn, Sn, S and Se elementary components. It is shown that samples of solid solutions of mixed composition are formed during the synthesis. The increase of x leads to continuous transition of kesterite structure from Cu2ZnSnSe4 selenide to Cu2ZnSnS4 sulfide. It is shown that the "slow" component appears when sulfur content in the samples increases and its characteristic decay time increases. This means that due to non-stoichiometry in the Cu2ZnSn(SxSe1–x)4 solid solutions the additional deep levels appear, and they serve as electron acceptors.
การพัฒนาผลิตภัณฑ์เคหะสิ่งทอจากผ้าไหมมัดหมี่บาติก: กรณีศึกษาลวดลายศิลปะขอมจากปราสาทศีรขรภูมิ
Creators: name: สุดากาญจน์  แยบดี
Publisher: name: มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร
Year: 2015
Subjects: เทคนิคทาเทียน, เคหะสิ่งทอ, ศิลปะขอม, ลายทอ, ผ้าไหมมัดหมี่บาติก

description: 1, 9, วารสารวิชาการและวิจัย มทร.พระนคร
Secure Routine: A Routine-Based Algorithm for Drivers Identification
Creators: name: Micale, Davide
name: Costantino, Gianpiero
name: Matteucci, Ilaria
name: Patanè, Giuseppe
Publisher: name: figshare
Year: 2021
Subjects: subject: 80303 Computer System Security
subject: FOS: Computer and information sciences

description: The introduction of Information and Communication Technology (ICT) in transportation systems leads to several advantages (efficiency of transport, mobility, traffic management). However, it may bring some drawbacks in terms of increasing security challenges, also related to human behaviour. As an example, in the last decades attempts to characterize drivers’ behaviour have been mostly targeted. This paper presents Secure Routine, a paradigm that uses driver’s habits to driver identification and, in particular, to distinguish the vehicle’s owner from other drivers. We evaluate Secure Routine in combination with other three existing research works based on machine learning techniques. Results are measured using well-known metrics and show that Secure Routine outperforms the compared works.
Unikraft: Fast, Specialized Unikernels the Easy Way
Creators: name: Kuenzer, Simon
name: Bădoiu, Vlad-Andrei
name: Lefeuvre, Hugo
name: Santhanam, Sharan
name: Jung, Alexander
name: Gain, Gaulthier
name: Soldani, Cyril
name: Lupu, Costin
name: Teodorescu, Ştefan
name: Răducanu, Costi
name: Banu, Cristian
name: Mathy, Laurent
name: Deaconescu, Răzvan
name: Raiciu, Costin
name: Huici, Felipe
Publisher: name: arXiv
Year: 2021
Subjects: subject: Operating Systems (cs.OS)
subject: FOS: Computer and information sciences

description: Unikernels are famous for providing excellent performance in terms of boot times, throughput and memory consumption, to name a few metrics. However, they are infamous for making it hard and extremely time consuming to extract such performance, and for needing significant engineering effort in order to port applications to them. We introduce Unikraft, a novel micro-library OS that (1) fully modularizes OS primitives so that it is easy to customize the unikernel and include only relevant components and (2) exposes a set of composable, performance-oriented APIs in order to make it easy for developers to obtain high performance. Our evaluation using off-the-shelf applications such as nginx, SQLite, and Redis shows that running them on Unikraft results in a 1.7x-2.7x performance improvement compared to Linux guests. In addition, Unikraft images for these apps are around 1MB, require less than 10MB of RAM to run, and boot in around 1ms on top of the VMM time (total boot time 3ms-40ms). Unikraft is a Linux Foundation open source project and can be found at www.unikraft.org.
description: 19 pages, 22 figures, 7 tables, conference proceedings
Measuring the average molecular gas content of star-forming galaxies at $z=3-4$
Creators: name: Boogaard, Leindert A.
name: Bouwens, Rychard J.
name: Riechers, Dominik
name: van der Werf, Paul
name: Bacon, Roland
name: Matthee, Jorryt
name: Stefanon, Mauro
name: Feltre, Anna
name: Maseda, Michael
name: Inami, Hanae
name: Aravena, Manuel
name: Brinchmann, Jarle
name: Carilli, Chris
name: Contini, Thierry
name: Decarli, Roberto
name: González-López, Jorge
name: Nanayakkara, Themiya
name: Walter, Fabian
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We study the molecular gas content of 24 star-forming galaxies at $z=3-4$, with a median stellar mass of $10^{9.1}$ M$_{\odot}$, from the MUSE Hubble Ultra Deep Field (HUDF) Survey. Selected by their Lyman-alpha-emission and H-band magnitude, the galaxies show an average EW $\approx 20$ angstrom, below the typical selection threshold for Lyman Alpha Emitters (EW $> 25$ angstrom), and a rest-frame UV spectrum similar to Lyman Break Galaxies. We use rest-frame optical spectroscopy from KMOS and MOSFIRE, and the UV features observed with MUSE, to determine the systemic redshifts, which are offset from Lyman alpha by 346 km s$^{-1}$, with a 100 to 600 km s$^{-1}$ range. Stacking CO(4-3) and [CI](1-0) (and higher-$J$ CO lines) from the ALMA Spectroscopic Survey of the HUDF (ASPECS), we determine $3σ$ upper limits on the line luminosities of $4.0\times10^{8}$ K km s$^{-1}$pc$^{2}$ and $5.6\times10^{8}$ K km s$^{-1}$pc$^{2}$, respectively (for a 300 km s$^{-1}$ linewidth). Stacking the 1.2 mm and 3 mm dust continuum flux densities, we find a $3σ$ upper limits of 9 $μ$Jy and $1.2$ $μ$Jy, respectively. The inferred gas fractions, under the assumption of a 'Galactic' CO-to-H$_{2}$ conversion factor and gas-to-dust ratio, are in tension with previously determined scaling relations. This implies a substantially higher $α_{\rm CO} \ge 10$ and $δ_{\rm GDR} \ge 1200$, consistent with the sub-solar metallicity estimated for these galaxies ($12 + \log(O/H) \approx 7.8 \pm 0.2$). The low metallicity of $z \ge 3$ star-forming galaxies may thus make it very challenging to unveil their cold gas through CO or dust emission, warranting further exploration of alternative tracers, such as [CII].
description: 26 pages, 12 figures, 3 tables. Accepted for publication in ApJ
The Robustness of Least-Squares Frequency Switching (LSFS)
Creators: name: Winkel, B.
name: Kerp, J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Least-squares frequency switching (LSFS) is a new method to reconstruct signal and gain function (known as bandpass or baseline) from spectral line observations using the frequency switching method. LSFS utilizes not only two but a set of three or more local oscillator (LO) frequencies. The reconstruction is based on a least squares fitting scheme. Here we present a detailed investigation on the stability of the LSFS method in a statistical sense and test the robustness against radio frequency interference (RFI), receiver gain instabilities and continuum sources. It turns out, that the LSFS method is indeed a very powerful method and is robust against most of these problems. Nevertheless, LSFS fails in presence of RFI signals or strong line emission. We present solutions to overcome these limitations using a flagging mechanism or remapping of measured signals, respectively.
description: 17 pages, 21 figures, 1 table, accepted for publication in ApJS (November 2007, v173n1)
Strong influence of non-magnetic ligands on the momentum dependent spin splitting in antiferromagnets
Creators: name: Yuan, Lin-Ding
name: Wang, Zhi
name: Luo, Jun-Wie
name: Zunger, Alex
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Recent studies have shown that the non-relativistic antiferromagnetic ordering could generate momentum-dependent spin splitting analogous to the Rashba effect, but free from the requirement of relativistic spin-orbit coupling. Whereas the classification of such compounds can be illustrated by different spin-splitting prototypes (SSTs) from symmetry analysis and density functional theory calculations, the significant variation in bonding and structure of these diverse compounds representing different SSTs clouds the issue of how much of the variation in spin splitting can be traced back to the symmetry-defined characteristics, rather to the underlining chemical and structural diversity. The alternative model Hamiltonian approaches do not confront the issues of chemical and structural complexity, but often consider only the magnetic sublattice, dealing with the all-important effects of the non-magnetic ligands via renormalizing the interactions between the magnetic sites. To this end we constructed a 'DFT model Hamiltonian' that allows us to study SSTs at approximate 'constant chemistry', while retaining the realistic atomic scale structure including ligands. This is accomplished by using a single, universal magnetic skeletal lattice (Ni2+ ions in Rocksalt NiO) and designing small displacements of the non-magnetic (oxygen) sublattice which produce, by design, the different SSTs magnetic symmetries. We show that (i) even similar crystal structures having very similar band structures can lead to contrasting behavior of spin splitting vs. momentum, and (ii) even subtle deformations of the non-magnetic ligand sublattice could cause a giant spin splitting in AFM-induced SST. This is a paradigm shift relative to the convention of modeling magnets without considering the non-magnetic ligand that mediate indirect magnetic interaction (e.g., super exchange).
description: 23 pages, 5. figures
Discovery of a double binary and nonradial pulsations in the Be star omicron Andromedae
Creators: name: Hill, Grant Michael
Publisher: name: University of British Columbia
Year: 2010

description: The multiple star system omicron Andromedae has been studied using high signal-to-noise ratio Reticon spectra. The narrow absorption features superimposed on the rotationally broadened Mg II ⋋ 4481 line of o And A are almost certainly from the spectrum of o And B which is shown to be a double-lined spectroscopic binary with a period of 33 days. The speckle interferometrically measured separations of A-a and A-B indicate that the system contains at least two binaries separated by some 25 AU, based on a parallax of 0.015 ± 0.008 arcseconds. Based on this parallax the A-a separation of is about 4 AU. The two stars which make up the unresolved spectroscopic binary o And B are separated by about 0.4 AU based on an orbital solution. The periods, based on the parallax and reasonable mass estimates, for A-a and Aa-B, are on the order of four and thirty years respectively. The two stars which constitute o And B are shown to most likely be late B stars of luminosity class V-IV. After compensating for the presence in the spectrum of a contribution from component B, o And A is reclassified as B5lIIe. The spectral type of o And a is not known and no contribution to the spectrum from it is observed. High signal-to-noise time series of spectra have revealed the presence of nonradial pulsations. An intermediate order, Ɩ = 6 mode, reveals itself through moving subfea-tures in the line profiles. Line width variations are detected which probably arise from an Ɩ = 2 low order mode. The co-existence of these two modes is capable of explaining the 1.57 day photometric variations. This period is twice that of the line width variations. Rapid radial velocity variations measured from the line wings were found but the line profile variations and the nature of the light curve do not support the existence of a fifth star. The measured radial velocity variations could be a result of the underlying profile variations as opposed to motion of o And A.
A density functional for the lattice gas from fundamental measure theory
Creators: name: Maeritz, M.
name: Oettel, M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We construct a density functional for the lattice gas / Ising model on square and cubic lattices based on lattice fundamental measure theory. In order to treat the nearest-neighbor attractions between the lattice gas particles, the model is mapped to a multicomponent model of hard particles with additional lattice polymers where effective attractions between particles arise from the depletion effect. The lattice polymers are further treated via the introduction of polymer clusters (labelled by the numbers of polymer they contain) such that the model becomes a multicomponent model of particles and polymer clusters with nonadditive hard interactions. The density functional for this nonadditive hard model is constructed with lattice fundamental measure theory. The resulting bulk phase diagram recovers the Bethe-Peierls approximation and planar interface tensions show a considerable improvement compared to the standard mean-field functional and are close to simulation results in three dimensions. We demonstrate the existence of planar interface solutions at chemical potentials away from coexistence when the equimolar interface position is constrained to arbitrary real values.
description: 22 pages, 12 figures, to be published in Phys. Rev. E
Solar-Era.Net - European Network of National and Regional Research and Innovation Programmes: Latest Developments of Transnational Cooperation, Project Results and Opportunities
Creators: name: Nowak, S.
name: Gutschner, M.
name: Biel, T.
name: Oberholzer, S.
name: Hünnekes, C.
name: Chakanga, K.
name: Horbelt, R.
name: Schulte, M.
name: Ruiz, D.
name: Fernández, E.
name: González, H.
name: Rigole, P.-J.
name: Walla, T.
name: Bernsen, O.
name: Polain, L.
name: Carchon, G.
name: Afentaki, E.
name: Leptos, P.
name: Peyronnet, R.
name: Bain, P.
name: Karaösz, K.
name: Covello, A.
name: Lutter, E.
name: Hipfinger, A.
name: Friedmann, G.
Publisher: name: WIP
Year: 2019
Subjects: Finance, Markets and Policies
Policies and Scenarios for Renewables, Societal and Global Challenges

description: 36th European Photovoltaic Solar Energy Conference and Exhibition; 1914-1919
description: SOLAR-ERA.NET is a network that brings together more than 20 RTD and innovation programmes in the field of solar electricity technologies in the European Research Area. The network of national and regional funding organisations has been established in order to increase transnational cooperation between RTD and innovation programmes and to contribute to achieving the objectives of the Strategic Energy Technology Plan (SET-Plan) through dedicated transnational activities (especially transnational calls). Through the support of the funding organisations, some 100 MEUR have been mobilised for transnational RTD and innovation projects through six joint calls carried out. In this contribution, results are presented for the transnational SOLAR-ERA.NET calls.
ความแตกต่างทางวัฒนธรรม :  ผลกระทบและข้อคิดในการจัดการข้ามวัฒนธรรม
Creators: name: อุทัย  ดุลยเกษม
Publisher: name: วิทยาลัยเทคโนโลยีภาคใต้
Year: 2551

description: 1, 1, วารสารเทคโนโลยีภาคใต้
Non-Hermitian Hamiltonians of Lie algebraic type
Creators: name: Assis, Paulo E. G.
name: Fring, Andreas
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We analyse a class of non-Hermitian Hamiltonians, which can be expressed bilinearly in terms of generators of a sl(2,R)-Lie algebra or their isomorphic su(1,1)-counterparts. The Hamlitonians are prototypes for solvable models of Lie algebraic type. Demanding a real spectrum and the existence of a well defined metric, we systematically investigate the constraints these requirements impose on the coupling constants of the model and the parameters in the metric operator. We compute isospectral Hermitian counterparts for some of the original non-Hermitian Hamiltonian. Alternatively we employ a generalized Bogoliubov transformation, which allows to compute explicitly real energy eigenvalue spectra for these type of Hamiltonians, together with their eigenstates. We compare the two approaches.
description: 27 pages
CovidGAN: Data Augmentation Using Auxiliary Classifier GAN for Improved Covid-19 Detection
Creators: name: Waheed, Abdul
name: Goyal, Muskan
name: Gupta, Deepak
name: Khanna, Ashish
name: Al-Turjman, Fadi
name: Pinheiro, Placido Rogerio
Publisher: name: arXiv
Year: 2021
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences
subject: I.2.7

description: Coronavirus (COVID-19) is a viral disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The spread of COVID-19 seems to have a detrimental effect on the global economy and health. A positive chest X-ray of infected patients is a crucial step in the battle against COVID-19. Early results suggest that abnormalities exist in chest X-rays of patients suggestive of COVID-19. This has led to the introduction of a variety of deep learning systems and studies have shown that the accuracy of COVID-19 patient detection through the use of chest X-rays is strongly optimistic. Deep learning networks like convolutional neural networks (CNNs) need a substantial amount of training data. Because the outbreak is recent, it is difficult to gather a significant number of radiographic images in such a short time. Therefore, in this research, we present a method to generate synthetic chest X-ray (CXR) images by developing an Auxiliary Classifier Generative Adversarial Network (ACGAN) based model called CovidGAN. In addition, we demonstrate that the synthetic images produced from CovidGAN can be utilized to enhance the performance of CNN for COVID-19 detection. Classification using CNN alone yielded 85% accuracy. By adding synthetic images produced by CovidGAN, the accuracy increased to 95%. We hope this method will speed up COVID-19 detection and lead to more robust systems of radiology.
description: Accepted at IEEE Access. Received April 30, 2020, accepted May 11, 2020, date of publication May 14, 2020, date of current version May 28, 2020
Efficient Sprayed Al2O3 Surface Passivation for Multicrystalline Silicon Solar Cells
Creators: name: Zougar, L.
name: Sali, S.
name: Kermadi, S.
name: Boumaour, M.
name: Kechouane, M.
Publisher: name: WIP
Year: 2019
Subjects: Silicon Materials and Cells
Homojunction Solar Cells

description: 36th European Photovoltaic Solar Energy Conference and Exhibition; 507-511
description: Al2O3 thin films are grown by simple spray deposition system. The carrier gas used in this system is a mix of nitrogen and oxygen. First, the presence of the Al2O3 phase and the surface of the films are observed by X-ray Photoelectron Spectroscopy (XPS) and scanning electron microscopy (SEM), respectively. The effect of oxygen during the deposition on the surface passivation quality of multicrystalline silicon is investigated. It is shown that the lifetimes of samples with oxygen measured by QSSPC far exceed those deposited without oxygen. This result has been confirmed by the electrical properties at the interface and compared to samples without oxygen. It was found that the oxygen in-situ incorporation during spray deposition system is a promising method for application of these layers as a surface passivation layer for multicrystalline silicon cells.
Solar Electricity and Safe Drinking Water: Global Opportunities and Challenges
Creators: name: Aulich, H.A.
name: Goldmaier, A.
name: Ighodaro, A.O.
name: Otter, P.
name: Mustapha, K.
Publisher: name: WIP
Year: 2019
Subjects: PV Applications and Integration
Professional Applications of PV

description: 36th European Photovoltaic Solar Energy Conference and Exhibition; 1675-1680
description: Solar electricity produced from high-efficiency modules have by now reached the lowest price/kWh opening the way to convert our fossil based energy system into CO"-free energy system based on 100% electricity. The lowest cost for PV opens up new application for the areas of Sub-Sahara Africa and South-East Asia where more than a billion people live mainly in the rural areas having no access to safe drinking water. This paper describes the installation of an autonomous system for the delivery of safe drinking water on the site of a Primary Health Center near Abuja/Nigeria. Functioning of the system as well as possibilities for massive roll-out are described.
CIGS Growth on a III-V/Si(001) Platform: Towards CIGS/Si Tandem Solar Cells
Creators: name: Durand, O.
name: Létoublon, A.
name: Cornet, C.
name: Zhou, A.
name: Barreau, N.
name: Gautron, E.
name: Balestrieri, M.
name: Lincot, D.
Publisher: name: WIP
Year: 2019
Subjects: Perovskites, other Non-Silicon-Based Photovoltaics and Multi-Junction Devices
Tandems

description: 36th European Photovoltaic Solar Energy Conference and Exhibition; 769-771
description: Cu(In,Ga)Se films were epitaxially grown on GaP/Si(001) pseudo-substrates using a co-evaporation growth process, where the GaP thin layer was epitaxially grown by Molecular Beam epitaxy (MBE). The structural properties were investigated through thorough XRD and STEM experiments. A strong epitaxy of the CIGSe was observed with the following epitaxial relationship: CIGSe[100](001)//(GaP/Si)[100](001). This result shows the high potential of this approach toward the development of high-efficiency CIGSe/Si tandem solar cells.
Sizing of Grid-Connected PV-Battery Systems: Technical and Economic Simulator
Creators: name: Solano, J.C.
name: Caamaño-Martín, E.
name: Brito, M.C.
name: Olivieri, L.
name: Maldonado-Correa, J.
name: Rojas-Moncayoa, M.
Publisher: name: WIP
Year: 2019
Subjects: PV Systems and Storage – Modelling, Design, Operation and Performance
Storage

description: 36th European Photovoltaic Solar Energy Conference and Exhibition; 1366-1373
description: In this paper, we present a grid-connected PV-battery systems simulator called PVbat. PVbat was designed to simulate the power flows between the PV system, building loads, the battery system and the utility grid. In addition, PVbat uses ageing battery models in order to calculate the battery lifetime. An economic analysis is also performed taking into account the costs associated with the PV-battery system as well as the electricity prices. As a result, the annual billing saving, the levelized cost of electricity and the payback-time are obtained. In the first section, a brief introduction about the simulator is presented, then in section 2 the operating characteristics are exposed. Section 3 explains the algorithm and control strategies used in the tool, and finally, in section 4 the conclusions are presented.
Determination of Temperature Coefficient of Photovoltaic Modules
Creators: name: Bazkir, O.
name: Meric, S.
Publisher: name: WIP
Year: 2019
Subjects: Photovoltaic Modules and BoS Components
PV Module Design, Manufacture, Performance and Reliability

description: 36th European Photovoltaic Solar Energy Conference and Exhibition; 1183-1186
description: Photovoltaic (PV) modules performance testing and energy rating as described in IEC 61853-1 standard depends on electrical parameters of PV modules as a function of temperature. In this work, in order to precisely determine the effects of temperature on the electrical parameters of PV modules temperature controlled, xenon light based A+ A+ A+ Solar Simulator system was used. The temperature uniformity of this system is less than ± 2 0C over the 2mx2m area, which is almost two times better that the IEC 60891 standard requirements (± 2 0C). Totally eight PT-100 temperature sensors were attached to the back sides of PV modules under test and temperature inside the thermal chamber was set to be changed from 15 0C to 75 0C with 5 0C intervals. At each temperature level after the desired thermal stability was reached, then the module front surface area was irradiated by flash type simulator with a flashes of 10 ms lengths and 1000 W/m2 irradiance.. After recording the electrical parameters (Isc, Voc, Pmax ) of PV modules the (T), (T) and (T) temperature coefficients corresponding to Isc, Voc, Pmax parameters were calculated
Potential-Induced Degradation of n-Type Front-Emitter Crystalline Silicon Photovoltaic Modules with Different Degradation Stages
Creators: name: Ohdaira, K.
name: Komatsu, Y.
name: Suzuki, T.
name: Yamaguchi, S.
name: Masuda, A.
Publisher: name: WIP
Year: 2019
Subjects: Photovoltaic Modules and BoS Components
PV Module Design, Manufacture, Performance and Reliability

description: 36th European Photovoltaic Solar Energy Conference and Exhibition; 822-824
description: We investigate the behaviors and the mechanism of potential-induced degradation (PID) for n-type front-emitter (FE) crystalline silicon (c-Si) photovoltaic (PV) modules. The PID of n-FE c-Si PV modules occurs in three stages at different PID-stress durations under different mechanisms. The first PID, characterized by reductions in short-circuit current density (Jsc) and open-circuit voltage (Voc), takes place and then saturates within 1–2 min. This results from the accumulation of positive charges in surface silicon nitride (SiNx), leading to the enhancement of surface recombination. The origin of the positive charges is probably positively-charged K centers (K+ centers) in the SiNx. The second PID, a reduction in FF alone, starts to occur at a PID stress duration of ~1 h. The FF reduction is accompanied not by a reduction in shunt resistance but by an increase in the diode ideality factor, and is thus caused by an increase in a current through carrier recombination in the depletion layer of the p–n junction of n-FE c-Si PV cells. Sodium (Na) ions introduced to the depletion layer may act as recombination centers. In the third PID, further Voc and FF reductions are seen after PID tests for >40 h. According to scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) mapping images, the formation of Na-based dome-shaped structures on the cell surface induces the third PID. A SiNx passivation layer is partly destroyed near the domes, which is probably the reasons for the reduction in Voc and for an unrecoverable behavior.
New results of intersection numbers on moduli spaces of curves
Creators: name: Liu, Kefeng
name: Xu, Hao
Publisher: name: arXiv
Year: 2007
Subjects: subject: Algebraic Geometry (math.AG)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We present a series of new results we obtained recently about the intersection numbers of tautological classes on moduli spaces of curves, including a simple formula of the n-point functions for Witten's $τ$ classes, an effective recursion formula to compute higher Weil-Petersson volumes, several new recursion formulae of intersection numbers and our proof of a conjecture of Itzykson and Zuber concerning denominators of intersection numbers. We also present Virasoro and KdV properties of generating functions of general mixed $κ$ and $ψ$ intersections.
description: 9 pages, a brief survey
Stochastic gradient descent and fast relaxation to thermodynamic equilibrium: a stochastic control approach
Creators: name: Breiten, Tobias
name: Hartmann, Carsten
name: Neureither, Lara
name: Sharma, Upanshu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optimization and Control (math.OC)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 82C31 (Primary), 82M31, 37M25 (Secondary)

description: We study the convergence to equilibrium of an underdamped Langevin equation that is controlled by a linear feedback force. Specifically, we are interested in sampling the possibly multimodal invariant probability distribution of a Langevin system at small noise (or low temperature), for which the dynamics can easily get trapped inside metastable subsets of the phase space. We follow [Chen et al., J. Math. Phys. 56, 113302, 2015] and consider a Langevin equation that is simulated at a high temperature, with the control playing the role of a friction that balances the additional noise so as to restore the original invariant measure at a lower temperature. We discuss different limits as the temperature ratio goes to infinity and prove convergence to a limit dynamics. It turns out that, depending on whether the lower ("target") or the higher ("simulation") temperature is fixed, the controlled dynamics converges either to the overdamped Langevin equation or to a deterministic gradient flow. This implies that (a) the ergodic limit and the large temperature separation limit do not commute in general, and that (b) it is not possible to accelerate the speed of convergence to the ergodic limit by making the temperature separation larger and larger. We discuss the implications of these observation from the perspective of stochastic optimisation algorithms and enhanced sampling schemes in molecular dynamics.
description: 23 pages, 5 figures
ชุมโจรแห่งลุ่มทะเลสาบสงขลา พ.ศ. 2437 - 2465
Creators: name: มานะ  ขุนวีช่วย
Publisher: name: วิทยาลัยเทคโนโลยีภาคใต้
Year: 2551
Subjects: ชุมโจร, ลักษณะสังคมวัฒนธรรม, ลุ่มทะเลสาบสงขลา

description: 1, 1, วารสารเทคโนโลยีภาคใต้
Additional file 2 of A Markov random field model for network-based differential expression analysis of single-cell RNA-seq data
Creators: name: Li, Hongyu
name: Zhu, Biqing
name: Xu, Zhichao
name: Adams, Taylor
name: Kaminski, Naftali
name: Zhao, Hongyu
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2. Supplementary Tables and Figures.
Chemical constituents and biological activities of Garcinia cowa Roxb.
Creators: name: Thunwadee Ritthiwigrom
name: Laphookhieo, Surat
name: Pyne, Stephen G.
Publisher: name: Maejo University
Year: 2013
Subjects: Garcinia cowa, flavonoids, xanthones, phloroglucinols

description: 2, 7, Maejo International Journal of Science and Technology
Inkjet-Printed Three-Dimensional Colloidal Photonic Crystals for Structural Coloration of Solar Cells
Creators: name: Speranza, R.
name: Huhtamäki, T.
name: Lepikko, S.
name: Ras, R.H.A.
name: Halme, J.
Publisher: name: WIP
Year: 2019
Subjects: New Materials and Concepts for Photovoltaic Devices
New Materials and Concepts for Cells and Modules

description: 36th European Photovoltaic Solar Energy Conference and Exhibition; 34-38
description: Large scale implementation of building-integrated photovoltaics (BIPV) requires matching the visual appearance of solar modules with other building materials. One approach is to add reflective color filters to conventional PV modules. Structural colors based on light interference are promising for this purpose, because they can produce color without parasitic light absorption, however, their angle-dependent (iridescent) appearance is unsuitable for most architectural applications and their fabrication methods ill-suited for color and pattern variation. Here, we report structural color filter fabricated by inkjet-printing three-dimensional photonic crystals (PC). A PC ink, consisting of monodispersed polystyrene nanoparticles of 200 nm diameter, was printed on a glass slide that had been treated with octadecyl-trichlorosilane (OTS) to control the droplet contact angle during drying, which was known to produce self-assembled 3-dimensional PC domes that exhibit angle-independent reflection. Measurements confirmed angle-independent cyan-colored reflection by the PC domes, but overall weak coloration. The PC color filter had 11.3 % peak reflectance at 467 nm, which caused 11 % decrease in the short-circuit current when coupled to a monocrystalline silicon solar cell. According to a theoretical analysis, increasing the surface coverage of the PC domes from 13 % to 80 % could increase the peak reflectance to 26 %.
Multi-Stranded Coronal Loops: Quantifying Strand Number and Heating Frequency from Simulated Solar Dynamics Observatory (SDO) Atmospheric Imaging Assembly (AIA) Observations
Creators: name: Williams, Thomas
name: Walsh, Robert W.
name: Regnier, Stephane
name: Johnston, Craig D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Coronal loops form the basic building blocks of the magnetically closed solar corona yet much is still to be determined concerning their possible fine-scale structuring and the rate of heat deposition within them. Using an improved multi-stranded loop model to better approximate the numerically challenging transition region, this paper examines synthetic NASA Solar Dynamics Observatory's (SDO) Atmospheric Imaging Assembly (AIA) emission simulated in response to a series of prescribed spatially and temporally random, impulsive and localised heating events across numerous sub-loop elements with a strong weighting towards the base of the structure; the nanoflare heating scenario. The total number of strands and nanoflare repetition times are varied systematically in such a way that the total energy content remains approximately constant across all the cases analysed. Repeated time lag detection during an emission time series provides a good approximation for the nanoflare repetition time for low-frequency heating. Furthermore, using a combination of AIA 171/193 and 193/211 channel ratios in combination with spectroscopic determination of the standard deviation of the loop apex temperature over several hours alongside simulations from the outlined multi-stranded loop model, it is demonstrated that both the imposed heating rate and number of strands can be realised.
Comparative Analysis of Albedo Measurements (Plane-of-Array, Horizontal) at Multiple Sites Worldwide
Creators: name: Dittmann, S.
name: Sánchez, H.
name: Burnham, L.
name: Gottschalg, R.
name: Oh, S.-Y.
name: Benlarabi, A.
name: Figgis, B.
name: Abdallah, A.
name: Rodríguez-Gallegos, C.D.
name: Ruther, R.
name: Fell, C.J.
Publisher: name: WIP
Year: 2019
Subjects: PV Systems and Storage – Modelling, Design, Operation and Performance
Solar Resource and Forecasting

description: 36th European Photovoltaic Solar Energy Conference and Exhibition; 1388-1393
description: Albedo, the diffuse reflectivity of a surface, is an important quantity in photovoltaic (PV) performance evaluation and simulation, especially for bifacial module technologies. Our paper reports on a comparative study of albedo measurements at multiple sites worldwide. The Authors compare state-of-the-art methodologies used within the research cooperative PV CAMPER. Differences are shown of horizontal and plane-of-array rear/front irradiance ratio including different substrates. The potential of rear side irradiance and its seasonal variation at six different test sites worldwide is presented.
Reduction in energy consumption and operating cost in a dried corn warehouse using logistics techniques
Creators: name: Korrakot Y. Tippayawong
name: Peerat Piriyageera-Anan
name: Teeraphat Chaichak
Publisher: name: Maejo University
Year: 2013
Subjects: agro-industry,logistics,plant layout design,dried corn warehouse

description: 2, 7, Maejo International Journal of Science and Technology
Next-to-MHV Yang-Mills kinematic algebra
Creators: name: Chen, Gang
name: Johansson, Henrik
name: Teng, Fei
name: Wang, Tianheng
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Kinematic numerators of Yang-Mills scattering amplitudes possess a rich Lie algebraic structure that suggest the existence of a hidden infinite-dimensional kinematic algebra. Explicitly realizing such a kinematic algebra is a longstanding open problem that only has had partial success for simple helicity sectors. In past work, we introduced a framework using tensor currents and fusion rules to generate BCJ numerators of a special subsector of NMHV amplitudes in Yang-Mills theory. Here we enlarge the scope and explicitly realize a kinematic algebra for all NMHV amplitudes. Master numerators are obtained directly from the algebraic rules and through commutators and kinematic Jacobi identities other numerators can be generated. Inspecting the output of the algebra, we conjecture a closed-form expression for the master BCJ numerator up to any multiplicity. We also introduce a new method, based on group algebra of the permutation group, to solve for the generalized gauge freedom of BCJ numerators. It uses the recently introduced binary BCJ relations to provide a complete set of NMHV kinematic numerators that consist of pure gauge.
description: 45pages + appx./refs
Learning Hierarchical Integration of Foveal and Peripheral Vision for Vergence Control by Active Efficient Coding
Creators: name: Zhao, Zhetuo
name: Triesch, Jochen
name: Shi, Bertram E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: The active efficient coding (AEC) framework parsimoniously explains the joint development of visual processing and eye movements, e.g., the emergence of binocular disparity selective neurons and fusional vergence, the disjunctive eye movements that align left and right eye images. Vergence can be driven by information in both the fovea and periphery, which play complementary roles. The high resolution fovea can drive precise short range movements. The lower resolution periphery supports coarser long range movements. The fovea and periphery may also contain conflicting information, e.g. due to objects at different depths. While past AEC models did integrate peripheral and foveal information, they did not explicitly take into account these characteristics. We propose here a two-level hierarchical approach that does. The bottom level generates different vergence actions from foveal and peripheral regions. The top level selects one. We demonstrate that the hierarchical approach performs better than prior approaches in realistic environments, exhibiting better alignment and less oscillation.
ความสามารถในการปรับตัวทางสังคมของนิสิตระดับปริญญาตรี ชั้นปีที่ 1 มหาวิทยาลัยมหาสารคาม
Creators: name: อรนุช ศรีคำ
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2556
Subjects: การปรับตัวทางสังคม, ความสามารถในการปรับตัวทางสังคม

description: 1, 4, วารสารสาระคาม
An ethnographic study of profoundly mentally retarded deinstitutionalized adults
Creators: name: Lee, Calvin
Publisher: name: University of British Columbia
Year: 2010

description: This study was concerned with the behaviours, actions, and patterns of interaction of profoundly mentally retarded non-verbal deinstitutionalized adults (PMRs). The methodology utilized field research techniques which are observations of participants in their natural setting. The observations were of five profoundly retarded deinstitutionalized adults and took place over a three month period in the participants' group home and day program. The observations were recorded daily in a field note book and were later transcribed into a protocol format. The protocols were then coded. The coding categories were developed by the researcher through abstractions which emerged from the data. The coding categories revealed insights into the PMRs. The participants exhibited a heirarchical social order, displayed consistent seating patterns, and understood property ownership. The participants were noted to anticipate daily-routines such as meals, outings, and bedtimes. The researcher observed preferences by the individual participants for specific staff members. One participant appeared to display a heterosexual erotic preference for one staff member. Autoerotic sexuality was observed in three participants. Individual preferences for food, music, activities, and people were also displayed by the participants. Stereotypic behaviours were prevalent behavioural patterns exhibited by participants who had individual and unique stereotypic motions. The coding of the stereotypic behaviour revealed that emotional responses were present during stereotic movement. The researcher hypothesized that stereotypic movement was an observable response to the inner thoughts or ideations of the participants. The literature on sensory deprivation suggests that individuals when exposed to a montonous environment develop their own sensory data (hallucinations) in the reticular area of the brain. Stereotypic behaviour appears to be an adaptation by the individual to monotony through self generated stimuli. The data from this study suggests that the degree of environmental stimulation influences the prevalence and incidence of stereotypic behaviour. There were data to support the hypothesis that the participants' stereotypic movement was interactive with the degree of environmental stimulation and the specific like or dislike of the participant to the stimulation.
The temporal changes of the pulsational periods of the pre-white dwarf PG 1159-035
Creators: name: Costa, J. E. S.
name: Kepler, S. O.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: PG 1159-035, a pre-white dwarf with T=140000 K, is the prototype of the PG1159 spectroscopic class and the DOV pulsating class. Changes in the star cause variations in its oscillation periods. The measurement of temporal change in the oscillation periods, dP/dt, allows us to estimate directly rates of stellar evolutionary changes, such as the cooling rate and the envelope contraction rate, providing a way to test and refine evolutionary models for pre-white dwarf pulsating stars. We measured 27 pulsation modes period changes. The periods varied at rates of between 1 and 100 ms/yr, and several can be directly measured with a relative standard uncertainty below 10%. For the 516.0 s mode (the highest in amplitude) in particular, not only the value of dP/dt can be measured directly with a relative standard uncertainty of 2%, but the second order period change, d(dP/dt)/dt, can also be calculated reliably. By using the (O-C) method we refined the dP/dt and estimated the d(dP/dt)/dt for six other pulsation periods. As a first application, we calculated the change in the PG 1559-035 rotation period, dP_rot/dt = -2.13*10^{-6} s/s, the envelope contraction rate dR/dt = -2.2*10^{-13} solar radius/s, and the cooling rante dT/dt = -1.42*10^{-3} K/s.
description: 8 pages; 2 figures; 2 tables; appendix with 2 tables
"Project FINALE" - Screen and Screen Printing Process Development for Ultra-Fine-Line Contacts below 20µm Finger Width
Creators: name: Clement, F.
name: Linse, M.
name: Tepner, S.
name: Wengenmeyr, N.
name: Ney, L.
name: Krieg, K.
name: Lorenz, A.
name: Pospischil, M.
name: Bechmann, S.
name: Oehrle, K.
name: Steckemetz, S.
name: Preu, R.
Publisher: name: WIP
Year: 2019
Subjects: Silicon Materials and Cells
Manufacturing & Production of Si Cells

description: 36th European Photovoltaic Solar Energy Conference and Exhibition; 255-258
description: Within this work, a new model of the screen printing process is set up in order to improve the understanding of the screen printing process with focus on the interaction between -paste and -screen. First results show that wall slip behavior of the paste can be significantly improved by adapting the screen chemistry, enabling a lower finger resistances and reduced finger widths. A mean contact finger width of wf = 26 µm combined with a mean finger resistance of RFinger = 99 /m shows the high potential of the newly developed screen chemistry using single-step screen printing. Screen openings of wch = 16µm and printed finger widths of wf = 17µm can be realized on textured Si wafers with ARC. Moreover, finger resistance values far below RFinger = 1000 /m are reached for nominal finger widths down to wf = 18µm. This proves the high potential of the single step screen printing process on the way to ultra-fine line contacts in combination with multi-busbar cell layouts. PERC-type Cz-Si solar cells fabricated with a 5 busbar cell layout and a nominal screen opening of wn = 24µm achieve efficiencies up to max = 22.1%. First multi-busbar solar cells with a 18µm nominal screen opening demonstrate a significant Ag reduction.