cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Probing Saturn's tropospheric cloud with Cassini/VIMS
Creators: name: Barstow, Joanna K
name: Irwin, Patrick G. J.
name: Fletcher, Leigh N.
name: Giles, Rohini S.
name: Merlet, Cecile
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: In its decade of operation the Cassini mission has allowed us to look deep into Saturn's atmosphere and investigate the processes occurring below its enshrouding haze. We use Visual and Infrared Mapping Spectrometer (VIMS) 4.6-5.2 micron data from early in the mission to investigate the location and properties of Saturn's cloud structure between 0.6 and 5 bars. We average nightside spectra from 2006 over latitude circles and model the spectral limb darkening using the NEMESIS radiative transfer and retrieval tool. We present our best-fit deep cloud model for latitudes between -40 and 50 degrees, along with retrieved abundances for NH3, PH3 and AsH3. We find an increase in NH3 abundance at the equator, a cloud base at ~2.3 bar and no evidence for cloud particles with strong absorption features in the 4.6-5.2 micron wavelength range, all of which are consistent with previous work. Non-scattering cloud models assuming a composition of either NH3 or NH4SH, with a scattering haze overlying, fit limb darkening curves and spectra at all latitudes well; the retrieved optical depth for the tropospheric haze is decreased in the northern (winter) hemisphere, implying that the haze has a photochemical origin. Our ability to test this hypothesis by examining spectra at different seasons is restricted by the varying geometry of VIMS observations over the life of the mission, and the appearance of the Saturn storm towards the end of 2010.
description: 41 pages, 16 figures. Accepted in Icarus
Effect of Strain Relaxation and the Burstein-Moss Energy Shift on the Optical Properties of InN Films Grown in the Self-Seeded Catalytic Process
Creators: name: Madapu, K. K.
name: Dhara, S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: For the first time, high optical quality InN films were grown on sapphire substrate using atmospheric chemical vapour deposition technique in the temperature range of 560-650 oC. Self-catalytic approach was adopted to overcome the nucleation barrier for depositing InN films. In this process, seeding of the nucleation sites and subsequent growth was performed in the presence of reactive NH3. We investigated the simultaneous effect of strain and Burstein-Moss (BM) energy shift on optical properties of InN films using Raman and photoluminescence spectroscopy. Existence of compressive strain in all films is revealed by Raman spectroscopic analysis and is found to relax with increasing growth temperature. The asymmetric broadening of the A1(LO) phonon mode is observed with the onset of plasmon-phonon interaction for films grown at 620 oC. Large blue shift of the band gap of InN (1.2 eV) is observed as a collective result of compressive strain in films as well as BM shift. Carrier density is calculated using the BM shift in the photoluminescence spectra. Finally, blue shift in band edge emission is observed further because of the presence of compressive strain in the films along with the BM effect.
description: 31 pages, 7 figures, Journal
Energy Efficiency Improvement in Reconfigurable Grid-Connected PV Systems With Adjustable Sizing Factor
Creators: name: Velasco-Quesada, G.
name: Guinjoan, F.
name: Pique-Lopez, R.
Publisher: name: WIP-Munich
Year: 2008
Subjects: PV Systems
Grid-connected Applications

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 3476-3483
description: This work deals with the energy efficiency improvement of reconfigurable grid-connected PV systems where either the installed power of a PV generator assigned to a power processing stage (i.e. PV systems based on the “Team” concept), or the number of power processing stages assigned to a single PV generator (i.e. PV systems based on the “MIX” concept) constitutes a degree of freedom of the PV system operation. The paper suggests a reconfiguration strategy driven by the estimation of the Sizing Factor (SF), namely the ratio between the maximum power of the power processing stage and the installed power of the corresponding PV generator, which optimizes the Yearly Injected Energy (YIE). As a result, the reconfigurable PV system can be considered as a PV system with a dynamic adjustable SF which tries to fit at any time the SF optimum value maximizing the YIE.
Composite Higgs Models, Technicolor and The Muon Anomalous Magnetic Moment
Creators: name: Doff, A.
name: Siqueira, Clarissa
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We revisit the muon magnetic moment (g-2) in the context of Composite Higgs models and Technicolor, and provide general analytical expressions for computing the muon magnetic moment stemming from new fields such as, neutral gauge bosons, charged gauge bosons, neutral scalar, charged scalars, and exotic charged leptons type of particles. Under general assumptions we assess which particle content could address the $g-2_μ$ excess. Moreover, we take a conservative approach and derive stringent limits on the particle masses in case the anomaly is otherwise resolved and comment on electroweak and collider bounds. Lastly, for concreteness we apply our results to a particular Technicolor model.
description: 9 pages, 5 figures
Conversations from the past: Kadaedaenigawae, tradition and change in the culture and lifestyle of the people of Nauru
Creators: name: Barker, Suzan
Publisher: name: Monash University
Year: 2017
Subjects: Uncategorized

description: Nauru is a tiny independent nation in the Central Pacific. Their colonial history has been turbulent. The Nauruans, however, have demonstrated their resistance to the gradual destruction of their culture and way of life, resilience, strong spirit of survival and ability to adapt to the changes. The aim of this study is to increase the knowledge and understanding of how the Nauruan people have maintained their culture and lifestyle following colonisation and how this is connected to their wellbeing today. An Indigenous decolonising methodology has been utilised to undertake this research. This methodology engages the participants with the research process at all levels and also enables them to be part of the decision making process. Twenty nine Nauruan people participated in interviews and discussion groups, along with four others who were co-investigators. The findings chapters, using the participants’ stories, were written as letters to return the stories to the community. Qualitative description was used when analysing the interviews to ensure that it was the participants’ voices that were heard. The findings show that many aspects of Nauruan culture, such as traditional medicines, games, fishing methods, and the rites of passage, remain a part of their daily life. The findings also show how Nauruan people have made modifications to the tangible aspects of their culture and lifestyle to incorporate the changes colonisation has brought into their lives. Overall this study found that many parts of Nauruan culture are still practised and well known. However, the intangible parts, their tacit knowledge, are areas that the older Nauruans are concerned with losing. It is the intangible aspects of the culture that link closely to their wellbeing along with their strong sense of identity as a unique people. The findings demonstrate the importance of documenting strategies for sustainable development where traditional knowledge and practices of value to daily living are, in the medium term plan, to be re-incorporated into the lives of Nauruan people. For the Nauruan people, this study shows the need for the revitalisation of their culture and traditions, both tangible and intangible, to be an ongoing part of the Nauruan government policies and practices.
Spectral Dependance of Sheet Resistance Measurements on TCO Layers for Thin Film Solar Cells
Creators: name: Ross, D.
name: Richards, B.S.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Advanced Photovoltaics
Fundamental Studies

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 445-447
description: The optimal performance of many thin film solar cells can be impeded by losses in both the window and the transparent conducting oxide (TCO) front contact layers. Luminescent down-shifting (LDS) has been suggested to overcome this through the use of a layer of luminescent material placed at the front of the solar cell, which absorbs short wavelength photons and re-emits them at a longer wavelength which the solar cell is more efficient in absorbing. However, it has also been observed that the current-voltage curves of thin film solar cells can display significant shifts if they are only exposed to light above a certain wavelength. This paper investigates the effects of these altered spectra on the properties of the TCO layers. These layers appear to be unaffected by the
absence of high energy photons, unlike other layers in thin film cells.
Noise Diagnostics of Local Defects in Solar Cells PN Junctions
Creators: name: Koktavy, P.
name: Paracka, P.
name: Macku, R.
name: Barinka, R.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Advanced Photovoltaics
Fundamental Studies

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 481-485
description: The present paper deals with noise diagnostics of local defects in monocrystalline silicon solar cells PN junctions. The useful tool is the microplasma noise, which arises in reverse biased PN junctions containing local defects featuring lower breakdown voltage than the rest PN junction. When a high electric field is applied to this PN junction, local breakdowns arise in micro-sized regions, which in turn can lead to the deterioration in quality or destruction of the PN junction. The correlation between the microplasma current noise and the emitted radiation was studied by means of two methods. The first method is based on simultaneous measurement of the current microplasma noise and the photomultiplier output voltage time behaviour for the constant reverse voltage. The second method uses simultaneous measurement of the reverse-biased PN junction narrow-band RMS noise current and the photomultiplier output narrow band RMS voltage for the ramp reverse voltage. The set of crystalline silicon
solar cells with different structure was studied by noise diagnostic methods.
Does economic policy uncertainty matter to explain connectedness within the international sovereign bond yields?
Creators: name: benlagha, Noureddine
name: Hemrit, Wael
Publisher: name: Manara - Qatar Research Repository
Year: 2022
Subjects: Banking, finance and investment
Applied economics

description: This paper examines the determinants of the dynamic connectedness between sovereign bond yields in a sample of G7 countries. In addition to the common macroeconomic factors, we focus on the impact of Economic Policy Uncertainty (EPU) on the dynamic connectedness patterns between bond yields. To this end, we first examine the full-sample connectedness among the seven bond yields and examine various features of connectedness using a measure recently proposed by Diebold and Yilmaz (Int J Forecast 28(1):57-66, 2012). To examine the determinants of the dynamic connectedness, we use the panel data model to consider the dynamic net connectedness between the considered bond yields as the endogenous variable. Overall, being the transmitter or recipient of spillovers appears to have independent and different influences depending on each of the two types of sovereign bond yields. Also, the findings support the idea that EPU can create an environment likely to exacerbate the transmission of spillover shocks between two-year sovereign bond yields. Conversely, on the whole, EPU does not appear to affect the connectedness of thirty-year sovereign bond yields in various bond markets. The findings also reveal the significant impacts of real output on how shocks across countries manifest in different ways.Other Information Published in: Journal of Economics and Finance
 License: https://creativecommons.org/licenses/by/4.0
See article on publisher's website: http://dx.doi.org/10.1007/s12197-021-09554-8
Determination of Distributed PV Generation and Investigation of its Impacts on the Power System
Creators: name: Saint-Drenan, Y.-M.
name: Bofinger, S.
name: Glotzbach, T.
name: Braun, M.
Publisher: name: WIP-Munich
Year: 2008
Subjects: PV Systems
Grid-connected Applications

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 3457-3463
description: The presented study is a detailed assessment of the value of PV energy within the German energy supply structure under consideration of the special attributes of PV: its correlation with actual consumption and local power generation. Contrary to previous statistical approaches a new dynamic approach was developed in this study. The dynamic behaviour of the PV power generation is modelled as a one-year time series. Based on the simulated time series, the characteristics of the PV generation was studied. An assessment of the impact of PV generation was carried out by assessing the influence of PV power on the energy demand and the fluctuation of the total PV generation in Germany. The combination of PV with wind generation was also studied.
XPS and material properties of raw and oxidized carbide-derived carbon and their application in antifreeze thermal fluids/nanofluids
Creators: name: Almanassra, Ismail W.
name: Zakaria, Yahya
name: Kochkodan, Viktor
name: Mroue, Kamal
name: Zekri, Atef
name: Atieh, Muataz Ali
name: Al-Ansari, Tareq
Publisher: name: Manara - Qatar Research Repository
Year: 2022
Subjects: Condensed matter physics
Physical chemistry

description: In this study, the stability, thermal conductivity and viscosity of carbide-derived carbon antifreeze thermal fluids were explored. The study also compares the results between antifreeze suspensions prepared using oxidized CDC and emulsified CDC using gum arabic. At first, the raw CDC was oxidized with oxygen by acid treatment and the Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy results revealed an increase in the oxygen content and oxygen functional groups in oxidized CDC. The two-step method was utilized for CDC thermal fluids preparation. Sedimentation visualization and zeta potential testing were employed to investigate stability of nanofluids with time. The stability results revealed that the oxidized CDC has better stability and higher zeta potential values than the emulsified CDCs; however, both mixtures demonstrated stable suspensions for three months. Viscosity measurements showed that the gum arabic CDC suspensions have a higher viscosity than the oxidized CDC; the viscosity was growing with CDC and gum arabic loadings and decreased with temperature. The thermal conductivity analysis was carried out using a lambda analyzer in a temperature range of 288–338 K with a CDC mass loading range of 0.05–0.3 mass%. The experimental outcomes demonstrated that oxidized CDC suspension has better thermal conductivity than gum arabic emulsified CDC. The highest improvement in thermal conductivity was 25.6% using 0.3 mass% of oxidized CDC at 338 K. Moreover, raising the gum arabic mass loading was found to reduce the thermal conductivity enhancement. Therefore, according to the results, the oxidized CDC antifreeze suspensions can perform better than the emulsified CDC. Graphical abstractOther Information Published in: Journal of Thermal Analysis and Calorimetry
 License: https://creativecommons.org/licenses/by/4.0
See article on publisher's website: http://dx.doi.org/10.1007/s10973-022-11419-z
Fixed and Two-Axis Tracking PV System: Potential Solar Electricity from Conventional and C-PV Modules Technology
Creators: name: Apicella, F.
name: Sarno, A.
name: Graditi, G.
name: Ferlito, S.
name: Boffa, V.
name: Grassano, G.
name: Tabolacci, R.
Publisher: name: WIP-Munich
Year: 2008
Subjects: PV Systems
Grid-connected Applications

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 3472-3475
description: ENEA with PIRELLI Labs and TELECOM Italia started one year ago an experimental activity at the aim to perform the potential solar electricity from fixed and two-axis tracking PV system. An experimental assessment of different PV installations and technologies too, a-Si and c-Si PV-flat systems, c-Si PV double axis tracking system, and innovative C-PV technologies, has been performed in order to compare the performance in operating conditions in the Mediterranean region. At this time a test site, located in Barra, near Naples’s urban area, equipped with four different PV plants of about 1 kWp each one has been realised. The field trial has been monitored for one year and a suitable data acquisition system has been developed. The purpose of this paper is to report the main energetic performances index for each PV plant and the results of the technical and economical comparative analysis among the aforesaid different technologies in order to advise, especially for the Mediterranean area, the best solutionin terms of PV cost reduction and its energy production maximization.
Simulation of Phase Changes and Dopant Diffusion in Silicon for the Manufacturing of Selective Emitters Via Laser Chemical Processing
Creators: name: Fell, A.
name: Kray, D.
name: Wütherich, T.
name: Müller, R.
name: Willeke, G.P.
name: Glunz, S.W.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Advanced Photovoltaics
Fundamental Studies

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 272-274
description: In this paper we report progress in the simulation of Laser Chemical Processing (LCP) with respect to the selective emitter forming. Our existing Matlab® code for simulation of laser heating, melting and evaporation has been enhanced to take into account evaporation by nanosecond pulses, dopant diffusion in silicon melt and the influence of the increased ambient pressure, caused by the high velocity liquid jet impinging on the surface. The new models have been successfully tested and compared with dry laser doping experiments. For the LCP case we achieved good agreement between simulation and experiment only for laser pulses in the nanosecond regime, because only for these process parameters hydrodynamic effects caused by the liquid jet can be neglected. From these results we can conclude that the best solar cell performance with LCP doping is achieved if the dominant dopant transport mechanism is liquid phase diffusion.
Spatially Resolved Characterisation of Silicon As-cut Wafers with Photoluminescence Imaging
Creators: name: The, M.
name: Giesecke, J.
name: Kasemann, M.
name: Warta, W.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Advanced Photovoltaics
Fundamental Studies

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 441-444
description: The characterisation of silicon as-cut wafers is important for process control in the solar cell production, since it can serve as starting material quality inspection and give information about a change of material properties caused by different process steps. In particular spatially resolved characterisation tools such as Photoluminescence Imaging are useful as an information source. Due to the low signal in a luminescence image of an as-cut wafer a major problem is superimposed excitation reflection light when the detection occurs from the front side of the wafer. We present a method which eliminates the spurious reflection contribution by a special image correction. The image correction is based on the measurement of the reflection topology of the as-cut wafer surface separately from the luminescence intensity.
A fixed point on generalised cone metric spaces
Creators: name: Pal, Sudip Kumar
name: Maity, Manojit
Publisher: name: arXiv
Year: 2016
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: General Topology (math.GN)
subject: FOS: Mathematics
subject: 54C60, 54H25

description: The aim of this paper is to prove a fixed point theorem on a generalised cone metric spaces for maps satisfying general contractive type conditions.
Bulging initiation and propagation in fiber-reinforced swellable Mooney–Rivlin membranes
Creators: name: Topol, Heiko
name: Al-Chlaihawi, Murtadha J.
name: Demirkoparan, Hasan
name: Merodio, José
Publisher: name: Manara - Qatar Research Repository
Year: 2022
Subjects: subject: Materials engineering
subject: FOS: Materials engineering
subject: Applied mathematics

description: This article considers a thin-walled hollow cylinder, which is composed of a fibrous and swellable hyperelastic material. The fibers are arranged in two families and they are taken to be parallel within each fiber family. The two fiber families are also assumed to be mechanically equivalent and symmetrically disposed in the ground substance material. At each instant of the homogeneous swelling, the material is taken to be incompressible. This article studies the interplay of swelling, fiber orientation, and the mechanical properties of the constituents on the initiation as well as on the axial propagation of bulging.Other Information Published in: Journal of Engineering Mathematics
 License: https://creativecommons.org/licenses/by/4.0
See article on publisher's website: http://dx.doi.org/10.1007/s10665-021-10123-5
System Modelling and Energy Management for Grid Connected PV Systems With Storage
Creators: name: Riffonneau, Y.
name: Delaille, A.
name: Barruel, F.
name: Bacha, S.
Publisher: name: WIP-Munich
Year: 2008
Subjects: PV Systems
Grid-connected Applications

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 3447-3451
description: This paper presents the modelling and energy management of a grid connected PV system associated with storage. Within the economic, energetic and environmental context, objective of the system is to ensure loads supply at the least cost by optimising the use of solar power. Therefore, due to the complicated operating patterns, an energy management system which decides on energy flow for any moment is necessary. First, we present the system
studied. Based on an AC bus typology, we consider all the energy flow possibilities. A model of the system is presented with an innovate algorithm for the estimation of batteries state of charge (SOC). Energy management has
been done with a deterministic algorithm. At each step size, the algorithm finds the energy flow pattern which ensures loads supply at the least cost, taking into account availability of PV power, batteries SOC, loads demand and
instantaneous electricity grid prices.
Heterogeneous Iron Precipitation and Gettering in Multicrystalline Silicon
Creators: name: Haarahiltunen, A.
name: Savin, H.
name: Yli-Koski, M.
name: Talvitie, H.
name: Asghar, M.I.
name: Sinkkonen, J.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Advanced Photovoltaics
Fundamental Studies

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 488-490
description: We present here simulation results of phosphorus diffusion gettering (PDG) both in single crystal and multicrystalline silicon. We show that both iron gettering and lifetime evolution during PDG can be simulated rather well in cast multicrystalline silicon by combining the initial conditions from point-size crystal growth and 1-D simulations of iron segregation to phosphorus layer.
Long-Term Performance Analysis of Grid-Connected PV System
Creators: name: So, J.H.
name: Yu, B.G.
name: Hwang, H.-M.
name: Kim, K.-S.
name: Yu, G.J.
name: Choi, J.Y.
Publisher: name: WIP-Munich
Year: 2008
Subjects: PV Systems
Grid-connected Applications

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 3371-3373
description: This paper presents performance monitoring results of two year or more of 50kW grid-connected photovoltaic (PV) system. The approximated output models is designed and verified with monitored data. The performance and losses of PV systems are presented in a quantitative value for changing meteorological conditions.
PVML - Photovoltaic Markup Language: Toward Universal Structure for Collection and Exchange of Data Acquired During PV Monitoring Process
Creators: name: Prorok, M.
name: Kołodenny, W.
name: Zdanowicz, T.
name: Gottschalg, R.
name: Stellbogen, D.
Publisher: name: WIP-Munich
Year: 2008
Subjects: PV Systems
Grid-connected Applications

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 3452-3456
description: In the paper universal format for data acquired during monitoring of PV modules and systems is proposed. The format should be universal and flexible enough to enable exchange data not only between research teams specifically involved in Performance Integrated Project but also in any other projects and/or commercial enterprises dealing with photovoltaic systems. Proposed format should simplify exchange and analysis of data acquired during monitoring a variety of PV installations, starting from analytical monitoring of individual PV modules – including I-V curves, solar spectrum curves – and ending on PV system of any type, whether it is large grid connected (GC) power plant or standalone (SAS) rural system with battery bank as energy storage. In each case proposed data format always remains the same while the number of variables may differ. When developing proposed format one of the main concerns was its flexibility and clear logical scheme. Data are stored in final XML format, which is becoming quickly very common and popular web service. This way collected data may be easily available on the website, either one provided by system user or that provided by system administrator. Starting from 2003 version there exists also possibility of either importing or exporting data from/to XML files using popular MS Excel spreadsheets. At the first approach the scheme – data structure – has been proposed which will be used to complete some tasks
scheduled in IP Performance project. Hence, structures discussed in the paper are mainly PV module oriented, allowing to store and exchange wide spectrum of data that were collected either earlier or during running project through measurements and round robin campaigns on various types of PV modules. When developing proposed data structure all main goals of the project were taken into account, i.e. indoor, outdoor PV module/system measurements, power and energy rating analysis, system failure detection (PV monitoring), module modelling etc. The scheme may be easily modified and extended to apply it for PV systems. The work has been carried out in the framework of the EC-funded Integrated Project PERFORMANCE
Supplementary document for Development of a high-sensitivity and fast-response fiber temperature sensor utilizing Ti₃C₂TX MXene/PDMS composites and Vernier effect - 7111442.pdf
Creators: name: Li, Peijiang
name: Wang, Zhenyang
name: Li, Haoyu
name: Feng, Shuai
name: Meng, Lei
name: Lv, Min
Publisher: name: Optica Publishing Group
Year: 2024
Subjects: Uncategorized

description: Supplemental Document
Potential for Application of Photovoltaic Systems in Urban Environments - Example of the City of Krakow
Creators: name: Chojnacki, J.A.
name: Teneta, J.
name: Wieckowski, L.
Publisher: name: WIP-Munich
Year: 2008
Subjects: PV Systems
Grid-connected Applications

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 3374-3377
description: In 2006, the Institute of Automatics of the AGH UST in Kraków has launched a photovoltaic installation of ~2 000 W peak capacity, integrated with the host building power installation. The system and some of its operational parameters were described in the paper presented at the 22nd EPSECE in Milan. Last year, the metering apparatus was extended, to monitor significant external and internal parameters, determining the operation of the BIPV system. The PV module temperature metering system has been significantly extended and adjusted. The modifications and extensions were the result of previous experience and conclusions from operation of the initially installed temperature measurement apparatus. Besides measurement of the solar irradiation intensity, realized with a Kipp&Sonnen pyranometer (at the module plane), the system was equipped with continuous measurement of the solar irradiation spectrum, based on a spectrophotometer. At the same time, since October 2006, there are ongoing measurements and archivization of voltage, currents and power outputs generated by the BIPV
system. It is worth underlining that the power consumption of the two student labs is also being measured. Power consumption in those two student labs was somehow a reference parameter in designing the installation. Details of
those issues will be presented in the article.
Peculiarities of Solar Cells With Silicon Nanoparticles and Silicon Quantum Wells
Creators: name: Litovchenko, V.G.
name: Ivanov, I.I.
name: Skryshevsky, V.A.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Advanced Photovoltaics
Fundamental Studies

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 265-268
description: Two different quantum size Si structures for solar cells (SC) were considered: with a nanoporous surface layer and a thin composite layer with Si nanoclusters (NSi) imbedded in conductive medium transparent for solar light. The former structure was analysed for the optimisation of the antireflection properties of silicon SC. The second structure was considered as a thin photoabsorber, which effectively generates electron-hole pairs and separates them by contact potential difference. In case of nanoporous structure, an additional influence of light scattering on the light absorption was taken into account. Si nanoparticles 2-3 nm in size have the effective forbidden gap of 1.5 to 2 eV. It can lead to the optimisation of solar cell photoconversion efficiency.
A Tale of Two Cultures: Comparing Interpersonal Information Disclosure Norms on Twitter
Creators: name: Mondal, Mainack
name: Punuru, Anju
name: Cheng, Tyng-Wen Scott
name: Vargas, Kenneth
name: Gundry, Chaz
name: Driggs, Nathan S
name: Schill, Noah
name: Carlson, Nathaniel
name: Bedwell, Josh
name: Lorenc, Jaden Q
name: Ghosh, Isha
name: Li, Yao
name: Fulda, Nancy
name: Page, Xinru
Publisher: name: arXiv
Year: 2023
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Computers and Society (cs.CY)
subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: We present an exploration of cultural norms surrounding online disclosure of information about one's interpersonal relationships (such as information about family members, colleagues, friends, or lovers) on Twitter. The literature identifies the cultural dimension of individualism versus collectivism as being a major determinant of offline communication differences in terms of emotion, topic, and content disclosed. We decided to study whether such differences also occur online in context of Twitter when comparing tweets posted in an individualistic (U.S.) versus a collectivist (India) society. We collected more than 2 million tweets posted in the U.S. and India over a 3 month period which contain interpersonal relationship keywords. A card-sort study was used to develop this culturally-sensitive saturated taxonomy of keywords that represent interpersonal relationships (e.g., ma, mom, mother). Then we developed a high-accuracy interpersonal disclosure detector based on dependency-parsing (F1-score: 86%) to identify when the words refer to a personal relationship of the poster (e.g., "my mom" as opposed to "a mom"). This allowed us to identify the 400K+ tweets in our data set which actually disclose information about the poster's interpersonal relationships. We used a mixed methods approach to analyze these tweets (e.g., comparing the amount of joy expressed about one's family) and found differences in emotion, topic, and content disclosed between tweets from the U.S. versus India. Our analysis also reveals how a combination of qualitative and quantitative methods are needed to uncover these differences; Using just one or the other can be misleading. This study extends the prior literature on Multi-Party Privacy and provides guidance for researchers and designers of culturally-sensitive systems.
description: This work will be presented at the 26th ACM Conference on Computer-Supported Cooperative Work and Social Computing (CSCW 2023). This paper will also be published in The Proceedings of the ACM on Human Computer Interaction
Enhancement of Solar Energy Conversion Efficiency by Light Harvesting of Organo-Lanthanide Complexes
Creators: name: Le Donne, A.
name: Acciarri, M.
name: Binetti, S.
name: Marchionna, S.
name: Narducci, D.
name: Rotta, D.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Advanced Photovoltaics
Fundamental Studies

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 269-271
description: A significant increase of the total power delivered by a crystalline silicon commercial solar cell has been obtained in Air Mass 1.5 conditions (simulating terrestrial applications) by the deposition of an active coating consisting of poly-vinylacetate doped with tris(dibenzoylmethane)(monophenanthroline) europium(III). This enhancement of the solar energy conversion has been obtained using a very low concentration of the Eu3+ complex, allowing a significant gain in the Watt peak price.
Supplementary document for Development of a high-sensitivity and fast-response fiber temperature sensor utilizing Ti₃C₂TX MXene/PDMS composites and Vernier effect - 7167052.pdf
Creators: name: Li, Peijiang
name: Wang, Zhenyang
name: Li, Haoyu
name: Feng, Shuai
name: Meng, Lei
name: Lv, Min
Publisher: name: Optica Publishing Group
Year: 2024
Subjects: Uncategorized

description: 530215
Optical Studies and Structural Properties of Chemically Deposited Tin Sulphide
Creators: name: Akkari, A.
name: Guasch, C.
name: Kamou, N.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Advanced Photovoltaics
Fundamental Studies

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 477-480
description: A simple and economical method based on chemical bath has been developed for thin film deposition of tin sulphide. The films have been prepared on glass substrate, from aqueous solution containing 30 ml triethanolamine (TEA) (C6H15NO3) (5O%), 10 ml thioacetamide (CH3CSNH2), 8 ml ammonia (NH3) solution and 10 ml of Sn2+(0.1M). These films were characterized with X-ray diffraction, with scanning electron microscopy, and with spectrophotometric measurements. The main conclusions concerning the optical properties can be summarized as follows:
The absorption coefficient of the films is > 104 cm-1 at the fundamental absorption edge: The transmission and reflexion coefficients vary respectively in the range of [44-89] % and [18-49] % in the visible and near infrared;
The band gap energy is in order of 1.76 eV.
The SnS material studied in this work presents physical properties suitable for the optical absorber layer in a photovoltaic structure such as SnS/CdS and SnS/ZnS.
Managing buyer experience in a buyer–supplier relationship in MSMEs and SMEs
Creators: name: Kumar, Prashant
name: Kushwaha, Amit Kumar
name: Kar, Arpan Kumar
name: Dwivedi, Yogesh K.
name: Rana, Nripendra P
Publisher: name: Manara - Qatar Research Repository
Year: 2022
Subjects: Information systems
Applied mathematics

description: Monitoring buyer experience provides competitive advantages for suppliers as buyers explore the market before reaching a salesperson. Still, not many B2B suppliers monitor their buyers’ expectations throughout their procurement journey, especially in MSMEs and SMEs. In addition, the inductive research on evaluating buyer experience in buyer–supplier relationships is minimal, leaving an unexplored research area. This study explores antecedents of buyer experience during the buyer–supplier relationship in MSMEs and SMEs. Further, we investigate the nature of the influence of extracted precursors on the buyer experience. Firstly, we obtain the possible antecedents from the literature on buyer–supplier experience and supplier selection criteria. We also establish hypotheses based on transaction cost theory, resource-based view (RBV), and information processing view. Secondly, we employ an investigation based on the social media analytics-based approach to uncover the antecedents of buyer experience and their nature of influence on MSMEs and SME suppliers. We found that buyer experience is influenced by sustainable orientation, management capabilities (such as crisis management and process innovation), and suppliers’ technology capabilities (digital readiness, big data analytical capability).Other Information Published in: Annals of Operations Research
 License: https://creativecommons.org/licenses/by/4.0
See article on publisher's website: http://dx.doi.org/10.1007/s10479-022-04954-3
Information Rates for Faster-Than-Nyquist Signaling with 1-Bit Quantization and Oversampling at the Receiver
Creators: name: Hälsig, Tim
name: Landau, Lukas
name: Fettweis, Gerhard
Publisher: name: arXiv
Year: 2016
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Oversampling combined with low quantization resolutions has been shown to be a viable option when aiming for energy efficiency in multigigabit/s communications systems. This work considers the case of 1-bit quantization combined with oversampling and shows how the performance of such a system can be improved by using matched pulse shaping filters and faster than Nyquist signaling. The channel is considered with additive Gaussian noise and the performance of the system is evaluated in terms of achievable information rate under symbol-by-symbol detection.
description: Published at IEEE VTC Spring 2014
A novel formulation for the weak quadrature element method for solving vibration of strain gradient graded nonlinear nanobeams
Creators: name: Trabelssi, M.
name: El-Borgi, S.
Publisher: name: Manara - Qatar Research Repository
Year: 2022
Subjects: subject: Applied computing
subject: Mechanical engineering
subject: FOS: Mechanical engineering

description: A novel formulation of the weak form quadrature element method, referred to as the locally adaptive weak quadrature element method, is proposed to develop elements for nonlinear graded strain gradient Timoshenko and Euler–Bernoulli nanobeams. The equations of motion are obtained based on Hamilton principle while accounting for the position of the physical neutral axis. The proposed elements use Gauss quadrature points to ensure full integration of the variational statement. The proposed formulation develops matrices based on the differential quadrature method which employs Lagrange-based polynomials. These matrices can be modified to accommodate any number of extra derivative degrees of freedom including third-order beams and higher-order strain gradient beams without requiring an entirely new formulation. The performance of the proposed method is evaluated based on the free vibration response of the linear and nonlinear strain gradient Timoshenko and Euler–Bernoulli nanobeams. Both linear and nonlinear frequencies are evaluated for a large number of configurations and boundary conditions. It is shown that the proposed formulation results in good accuracy and an improved convergence speed as compared to the locally adaptive quadrature element method and other weak quadrature element methods available in the literature.Other Information Published in: Acta Mechanica
 License: https://creativecommons.org/licenses/by/4.0
See article on publisher's website: http://dx.doi.org/10.1007/s00707-022-03321-4
Sub-Bandgap Electroluminescence at Room Temperature of Extended Defects in Multicrystalline Silicon
Creators: name: Dreckschmidt, F.
name: Fiedler, H.
name: Kreßner-Kiel, D.
name: Möller, H.J.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Advanced Photovoltaics
Fundamental Studies

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 407-410
description: Spectral resolved electroluminescence (EL) mapping was performed on multicrystalline silicon solar cells in the wavelength range from 900-1700 nm. Multicrystalline silicon (mc-silicon) shows luminescence from defect centres with energies below the bandgap energy at room temperature. The site of these emitting centres is estimated by defect etching experiments. The electrical activity of such luminescence centres is investigated by LBIC measurements. The goal of these investigations is the application of electroluminescence spectroscopy as a tool to estimate defect parameters in mc-silicon.
Phase-feld theory of multi-component incompressible Cahn-Hilliard liquids
Creators: name: Toth, Gyula I.
name: Zarifi, Mojdeh
name: Kvamme, Bjorn
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: In this paper a generalization of the Cahn-Hilliard theory of binary liquids is presented for multi-component incompressible liquid mixtures. First, a thermodynamically consistent convection-diffusion type dynamics is derived on the basis of the Lagrange multiplier formalism. Next, a generalization of the binary Cahn-Hilliard free energy functional is presented for arbitrary number of components, offering the utilization of independent pairwise equilibrium interfacial properties. We show that the equilibrium two-component interfaces minimize the functional, and demonstrate, that the energy penalization for multi-component states increases strictly monotonously as a function of the number of components being present. We validate the model via equilibrium contact angle calculations in ternary and quaternary (4-component) systems. Simulations addressing liquid flow assisted spinodal decomposition in these systems are also presented.
Scaling limit analysis of Borromean halos
Creators: name: Souza, L. A.
name: Bellotti, F. F.
name: Frederico, T.
name: Yamashita, M. T.
name: Tomio, L.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The analysis of the core recoil momentum distribution of neutron-rich isotopes of light exotic nuclei is performed within a model of the halo nuclei described by a core and two neutrons dominated by the $s-$wave channel. We adopt the renormalized three-body model with a zero-range force, that accounts for the universal Efimov physics. This model is applicable to nuclei with large two-neutron halos compared to the core size, and a neutron-core scattering length larger than the interaction range. The halo wave function in momentum space is obtained by using as inputs the two-neutron separation energy and the energies of the singlet neutron-neutron and neutron-core virtual states. Within our model, we obtain the momentum probability densities for the Borromean exotic nuclei Lithium-11 ($^{11}$Li), Berylium-14 ($^{14}$Be) and Carbon-22 ($^{22}$C). A fair reproduction of the experimental data was obtained in the case of the core recoil momentum distribution of $^{11}$Li and $^{14}$Be, without free parameters. By extending the model to $^{22}$C, the combined analysis of the core momentum distribution and matter radius suggest (i) a $^{21}$C virtual state well below 1 MeV; (ii) an overestimation of the extracted matter $^{22}$C radius; and (iii) a two-neutron separation energy between 100 and 400 keV.
Local stress distribution in composites for pulled-out fibers with axially varying bonding
Creators: name: Andrianov, Igor V.
name: Danishevskyy, Vladyslav V.
name: Topol, Heiko
Publisher: name: Manara - Qatar Research Repository
Year: 2022
Subjects: subject: Applied computing
subject: Mechanical engineering
subject: FOS: Mechanical engineering

description: We present a study on the local stress distribution in a composite for a single-fiber pulled-out model. We consider an interphase between a fiber of finite length and the matrix, and we take into account varying bonding conditions in the axial direction between the fiber and the interphase and between the interphase and the matrix. Bonding is modeled by a modification of the classical spring-layer model, in which the quality of bonding between two constituents is quantified by a proportionality constant that describes the ratio of the displacements to the acting shear stresses in an interface. The problem is studied for linear elastic and for viscoelastic problems by the means of the elastic–viscoelastic correspondence principle. In numerical examples, we illustrate the development of the normal stresses in the constituents and of the interfacial shear stresses for different bonding conditions as well as for viscoelastic creep in the matrix.Other Information Published in: Acta Mechanica
 License: https://creativecommons.org/licenses/by/4.0
See article on publisher's website: http://dx.doi.org/10.1007/s00707-020-02634-6
Study on Control and Operation System of PCS in Hokuto Mega-Solar Project
Creators: name: Konishi, H.
name: Tanaka, R.
name: Shiraki, T.
Publisher: name: WIP-Munich
Year: 2008
Subjects: PV Systems
Grid-connected Applications

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 3412-3416
description: The New Energy and Industrial Technology Development Organization (NEDO) advertised for consignment research business called "Verification of Grid Stabilization with Large-scale Photovoltaic (PV) Power Generation Systems" in 2006. Hokuto city in Yamanashi Prefecture was chosen for one of the verification test place, which is called as Hokuto mega-solar project (HMP). In HMS, about 2MW of mega-solar system will be constructed, and 600kW PV system consisted of 24 kinds of PV modules were installed in the 1st stage. They are evaluated on the applicability to the future mega-solar systems. Large-scale power conditioners (PCSs) and their controls and operating systems have been developing to connect to an existing AC grid with little effects. They are installed in 2nd stage. The outlines and developing targets of HMT are introduced and some achieved results are discussed in this paper.
Quantitative Information of Electroluminescence Images
Creators: name: Helbig, A.
name: Kirchartz, T.
name: Rau, U.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Advanced Photovoltaics
Fundamental Studies

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 426-429
description: The reciprocity between electroluminescence and solar cell quantum efficiency simplifies the simulation and interpretation of electroluminescence spectra. With this reciprocity link, we show how to gain spatially resolved information about recombinatorial and optical parameters from electroluminescence images by
using certain types of filters while recording the images. Simple optical models allow the adaptation of our model to both flat and textured crystalline silicon solar cells. The ratio of two electroluminescence images recorded with two different short pass filters reveals spatially resolved information on the surface recombination velocity and on the bulk diffusion length. The ratio of two images, one recorded with no filter and one with a long pass filter, yields a map of the back side reflectance.