cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Application of SmartGrid in Photovoltaic Power Systems on the Island of Bornholm – PVNET.dk
Creators: name: Kjær, S.B.
name: Lazar, R.D.
name: Constantin, A.
name: Borup, U.
name: Ballegaard, H.P.
name: Østergaard, J.
name: Stephansen, C.
name: Mattesen, M.R.
name: Sørensen, J.B.
Publisher: name: WIP
Year: 2011
Subjects: PV Systems
Large PV Power Plants and Distributed PV: System Aspects and Grid Connection

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 4344-4346
description: The 20-20-20 goals set by the European Commission puts a lot of stress on the existing transmission and
distribution networks, due to increasing amount of distributed power generation. The burden can be lowered either by
upgrading the networks or by introducing SmartGrid technology. The target for the PVNET.dk project is to study how to
integrate large amount of PV into the existing network, without having to reinforce it. This is done by examining
different types of grid voltage control, applying SmartGrid functionalities and introducing other ancillary services
integrated into the inverters. The background for the PVNET.dk project is the already ongoing EcoGrid EU project, the
Danish Cell Project and the Photovoltaic Island Bornholm project. The project is in part financed under the Electrical
Energy Research Program (ForskEL, grant number 10698), administrated by the Danish transmission network operator
Energinet.dk
Diffusion of Moisture and Impact of UV Irradiance in Photovoltaic Encapsulants
Creators: name: Swonke, T.
name: Hoyer, U.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Components for PV Systems
PV Modules

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 3373-3376
description: Two of the major reasons for corrosion and aging within photovoltaic modules is humidity and UV
radiation. Susceptible for these influences is mainly the used encapsulant as it stores and disperses water on the one hand
and decreases the transparency due to UV radiation on the other hand. The most common encapsulation material is
ethylene vinyl acetate (EVA), followed by poly vinyl butyral (PVB), thermoplastic polyurethane (TPU), as well as
ionomers (ION) and thermoplastic silicones (TSI). We tested those foils in respect of their water vapor transmission rate
(WVTR), saturation concentration, diffusion profile for varied climatic conditions (temperature and relative air humidity)
and behavior on exposure of strong UV-B radiation. The WVTR was measured with a gravimetric testing procedure; the
diffusion profile was determined by infrared-absorption-spectroscopy and the transmittance of laminated samples after
UV exposure was detected by UV/VIS/NIR spectroscopy. Summing up the results the thermoplastics foils (TPU and TSI)
show the highest WVTR, the ionomer foils the lowest. The saturation concentration of PVB was the highest at all,
followed by TPU and EVA. The silicone and the ionomer store practically no water. Some of the materials still show a
diminution of transparency in the range of 390 nm to 550 nm after the treatment of strong UV radiation.
UV-Laser Scribing Processes for Thin-Film-Silicon Devices
Creators: name: Canteli, D.
name: García-Ballesteros, J.J.
name: Torres, I.
name: Molpeceres, C.
name: Cárabe, J.
name: Gandía, J.J.
Publisher: name: WIP-Munich
Year: 2010
Subjects: Thin Film Solar Cells
Amorphous and Microcrystalline Silicon Solar Cells

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 3042-3045
description: The matter of this study is UV-laser ablation of transparent conductive oxides for solar modules.
Commercial transparent conductive oxide Asahi U-type® has been irradiated with 355 nm laser light at different
irradiation conditions. The influence of different work parameters has been studied and the most relevant of them
have been identified. A parametric window for good-quality scribing has been found. High-quality scribing processes
have been obtained. Clean scribes have been produced with full ablation of transparent conductive oxide film without
damage to the substrate or thermal affection. The electrical isolation obtained between strips has been found to be
remarkably good (>MΩ). Ablation thresholds at different repetition frequencies have also been determined. The
morphology of the ablated surfaces has been characterised by confocal microscopy and scanning electron
microscopy. Finally laser-material interaction and the ablation process of fluorine-doped tin oxide (SnO2:F) thin
films using a 355-nm laser is discussed.
A Simple Model for Estimating the Influence of Spectrum Variations on PV Performance
Creators: name: Huld, T.
name: Sample, T.
name: Dunlop, E.D.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Components for PV Systems
PV Modules

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 3385-3389
description: We present a simple empirical model for the influence of the solar spectrum on the performance of
photovoltaic modules. The model is based on the assumption that changes in the spectrum will affect the short-circuit
current of the module and thereby the power output. The model has been applied to data sets from two modules
measured outdoors in Ispra, Italy during several months. Model results show that under the measured conditions the
overall effect of spectral variations is an increase in energy output of 0.4% for crystalline silicon and 1.5% for
cadmium telluride, relative to what would be expected from module measurements at standard test conditions.
Results also indicate that the model as presented should be modified to take into account the influence of module
inclination.
Role of the Ward Identity and Relevance of the G0W0 Approximation in Normal and Superconducting States
Creators: name: Takada, Yasutami
Publisher: name: arXiv
Year: 2016
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: On the basis of the self-consistent calculation scheme for the electron self-energy with the use of the three-point vertex function always satisfying the Ward identity, we find that the obtained quasiparticle dispersion in the normal state in gapped systems such as semiconductors, insulators, and molecules is well reproduced by that in the one-shot GW (or G0W0) approximation. In calculating the superconducting transition temperature Tc, we also find a similar situation; the result for Tc in the gauge-invariant self-consistent (GISC) framework including the effect of the vertex corrections satisfying the Ward identity is different from that in the conventional Eliashberg theory (which amounts to the GW approximation for superconductivity) but is close to that in the G0W0 approximation. Those facts indicate that the G0W0 approximation actually takes proper account of both vertex and high-order self-energy corrections in a mutually cancelling manner and thus we can understand that the G0W0 approximation is better than the fully self-consistent GW one in obtaining some of physical quantities.
description: 8pages, 3figures. arXiv admin note: substantial text overlap with arXiv:1003.3342
Paleteros: A History of Mexican Ic eCream Street Vendors in the San Francisco Bay Area
Creators: name: Mora, Alberto
Publisher: name: Stanford Digital Repository
Year: 2023
Subjects: subject: Ice cream industry
subject: Street-food vendors
subject: Emigration and immigration
subject: Immigrants--Social conditions
subject: Seasonal labor
subject: Latin Americans
subject: Mexicans
subject: Paleteros
subject: Paleterias
subject: Informal sector (Economics)
subject: Ethnic groups

description: A common strategy for many recent migrants is the clustering around a particular locale
with other co-ethnic members as a way to make living in their new environment much more
palatable. This includes the formation of certain ethnic enclaves, common in many urban centers
that include Chinatowns, Little Mexicos, or Little Italys, that serve as a necessary cultural hub
that provides information on resources like housing, job opportunities, or support networks for
other arriving co-ethnic migrants. In some cases, migrants even cluster around a particular
profession that often become synonymous with said groups. In my thesis, I focus on Mexican
Ice-Cream street vendors, colloquially known as Paleteros, in order to better understand the
history of recent Mexican immigration and the social conditions by which these migrants choose
street food vending, an otherwise highly visible profession. I play close attention to the
inception, growth, and proliferation of the Ice-Cream street vending business by interviewing
both street vendors and ice-cream street vending business owners located throughout the San
Francisco Bay Area. In doing so, the ensuing thesis strives to add to the growing literature on
studies pertaining to small, informal businesses that are largely operated by Latinx immigrants as
well as examining the historical and social conditions that promulgated an otherwise
understudied topic
Development and Application of a UV Light Source for PV-Module Testing
Creators: name: Köhl, M.
name: Philipp, D.
name: Lenck, N.
name: Zundel, M.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Components for PV Systems
PV Modules

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 3402-3405
description: Photovoltaic (PV)-modules are exposed to solar irradiation, which includes Ultra-violet (UV) light. UV
light is well-known as degradation factor for polymeric materials, as used for encapsulation of PV-cells. Therefore they
are protected by UV-filtering glass or UV protecting additives. The UV-stability is only tested on a very low level (total
UV energy of 15kWh/m²) according to the actual type approval standards (IEC 61215, IEC61646, e.g.). An undefined
acceleration is provided by the testing temperature of 60°C. The real UV-dose, however, can reach more than 120
kWh/m² per year. The module-temperature during high UV-irradiation usually ranges between 40°C and 60°C. The main
reason for the inadequate test conditions is the lack of well-defined and inexpensive UV-light sources and therefore small
test capacities.
We developed an UV-radiation unit based on fluorescence tubes, which have the advantage of low visible and NIR
irradiation avoiding overheating of the samples. The spectral irradiation is solar-like in the short-wavelength UV and
lower in the long-wavelength UV, with a limited number of disturbing emission-lines. The design of the unit has been
optimized for high UV-intensities up to 5X and usage on both sides. Our prototype has an area of 1.7 m x 3 m, which
yields an usable testing area of 6 m x 1.7 m. The unit is designed for usage in humid ambient in a temperature range up to
90°C for the future development of combined damp-heat and UV tests, in order to get the tests closer to reality.
Characterization of Bifacial Silicon Solar Cells and Modules: A New Step
Creators: name: Duran, C.
name: Hering, P
name: Buck, T.
name: Peter, K.
Publisher: name: WIP
Year: 2011
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Silicon Solar Cell Characterisation and Modelling

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 1550-1554
description: Being interested in the characterization of bifacial solar cells and the maximizing of their potential, we
studied how the sample holders add an external current mainly due to the reflectance properties of their surface. We
found that this influence can be higher than one percent relative with respect to current. Using the same type of cells,
mini modules were encapsulated using different back sheets. An increase of up to 8% in power output is visible before
and after encapsulation if the back sheet is highly reflecting. Larger modules were laminated using transparent back foils
with 16 of these cells and outdoor measurements performed. We changed the reflectance of the underlying surface and so
the bifacial performance of the module varied, in a proportional manner. We have observed a relative increase in relation
to monofacial averaged value of 7.9% of current if the reflectance of the surface is high, with major peaks up to 20%. The
underlying area must be optimized to reveal the real potential of these devices. We have found a difference of about 30%
relative comparing a small underlying area vs. a bigger area. There is also a saturation point when the underlying area is
six times the area of the module. For this size or larger areas, the surface can be considered as infinite because its
contribution will not change the performance of the module.
Entre Camaradas: The Transformation of Anticommunist Rhetoric in Colombia Through the Discourse of Laureano Gómez and Álvaro Uribe Vélez
Creators: name: Acevedo, Julian
Publisher: name: Stanford Digital Repository
Year: 2023
Subjects: subject: Latin America
subject: Colombia
subject: Uribe Vélez, Álvaro, 1952-
subject: Uribe, Alvaro, 1953-
subject: Gómez, Laureano, 1889-1965

description: Though the Soviet Union fell decades ago, the red specter of communism still looms 
large over parts of the world, including Colombia. In this thesis, I explore the anticommunist 
rhetoric in Colombia through the discourse of two former presidents who lived in two very 
different realities. I compare the discourse of Laureano Gómez with that of Álvaro Uribe Vélez,
using a speech titled “El Basilisco” as a case study of Gómez’s discourse and various tweets 
published by Uribe between 2016 and 2018 as examples of his discourse. I argue that while 
communism was a “real” threat during Gómez’s time and within his rhetoric, for Uribe, his 
anticommunist discourse function less as an expression of a real threat and more as a tool that
leverages the history and context of Colombia and to a certain extent Venezuela. I place the 
discourse of both men firmly within the general context that shaped their time, meaning that I 
explore various events that occurred during the 20th century in Colombia, paying particular
attention to the position of Marxism within Colombian society. Furthermore, I also briefly 
discuss the implications of the evolution of communication from the present day in comparison 
to the 1940s and 50s. I also engage with various literature across multiple fields such as history, 
communication, and political science.
Light Trapping in Thin-Film Silicon Solar Cells – Comparison of Random and Periodic Structures
Creators: name: Haase, C.
name: Rau, U.
Publisher: name: WIP-Munich
Year: 2010
Subjects: Thin Film Solar Cells
Amorphous and Microcrystalline Silicon Solar Cells

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 2889-2892
description: Thin-film solar cells based on microcrystalline (μc-Si:H) or amorphous silicon (a-Si:H) with absorber
layers in the micrometer range require highly efficient light trapping and an optimal incoupling of the entire sun
spectrum. To investigate and optimize their optical properties the wave propagation in thin-film silicon solar cells is
modelled in 3D solving the Maxwell equations rigorously. A periodic nanostructured texture with inverted pyramids
is investigated as an alternative to the commonly used randomly rough texture. A quasi-random TCO structure that is
composed of different pyramid period sizes was modelled and compared to a periodic single pyramid TCO structure.
Different back contact designs were tested and their influence on the long wavelengths light trapping was studied.
Emergence and oscillation of cosmic space by joining M1-branes
Creators: name: Sepehri, Alireza
name: Rahaman, Farook
name: Capozziello, Salvatore
name: Ali, Ahmed Farag
name: Pradhan, Anirudh
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Recently, it has been proposed by Padmanabhan that the difference between the number of degrees of freedom on the boundary surface and the number of degrees of freedom in a bulk region leads to the expansion of the universe. Now, a natural question arises, how this model could explain the oscillation of universe between contraction and expansion branches? We try to address this issue in the framework of BIonic system. In this model, $M0$-branes join to each other and give rise to a pair of $M1$-anti-$M1$-branes. The fields which live on these branes play the roles of massive gravitons that cause the emergence of a wormhole between them and formation of a BIon system. This wormhole dissolves into M1-branes and causes a divergence between the number of degrees of freedom on the boundary surface of $M1$ and the bulk leading to an expansion of $M1$-branes. When $M1$-branes become close to each other, the square energy of their system becomes negative and some tachyonic states emerge. To removes these states, $M1$-branes compact, the sign of compacted gravity changes, causing the arising of anti-gravity: in this case, branes get away from each other. By articulating $M1$-BIons, an M3-brane and an anti-$M3$-brane are created and connected by three wormholes forming an $M3$-BIon. This new system behaves like the initial system and by closing branes to each other, they compact and, by getting away from each other, they open. Our universe is located on one of these M3-branes and, by compacting $M3$-brane, it contracts and, by opening it, it expands.
description: 16 pages. 4 figures. Accepted in Eur.Phys.J.C
The Desert Knowledge Australia Solar Centre: High Voltage Effects on Inverter Performance
Creators: name: Rodden, P.
name: Lee, G.R.
name: Frearson, L.
Publisher: name: WIP
Year: 2011
Subjects: PV Systems
Large PV Power Plants and Distributed PV: System Aspects and Grid Connection

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 4334-4338
description: The significant increase in the penetration of PV into local electricity grids can lead to an elevation of AC grid
voltage. This effect is particularly evident in mini grids operating in hot climates with long spur lines which, due to
network requirements, already operate at relatively high AC grid voltages. The Desert Knowledge Australia Solar
Centre (DKASC) was developed as a site where competing photovoltaic technologies could be installed, operated and
monitored under the same conditions. Data from the DKASC has provided the basis for studying the impact of high
grid voltage on the performance of inverters across the site. Assessment of the site data identified one system whose
underperformance could be directly related to high AC grid voltage which was in turn linked to high local PV
penetration. By reducing AC voltage to this array this issue was effectively resolved. The problems experienced by
this one system at the DKASC was found to be the result of a combination of high AC grid voltage and low DC array
voltage; which saw the inverter MPPT being forced to move beyond its effective working parameters and lead to a
marked reduction in system performance. It can be demonstrated that high AC grid voltages can have a detrimental
impact on the performance of PV systems. In locations with a combination of high AC grid voltage and high PV
penetration this risk is accentuated and particular attention must be paid to ensure that the DC array voltage is
significantly above the minimum recommended MPPT DC operating voltage.
Information loss problem and roles of instantons
Creators: name: Yeom, Dong-han
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In order to understand the information loss problem, non-perturbative effects will do significant roles. Instantons are in general helpful for this purpose. There are various and rich thin-shell instantons and tunneling channels that eventually result a trivial geometry without a singularity nor an event horizon. We further discuss that there are some subtle examples in asymptotic de Sitter cases that need further investigations.
description: 8 pages, 5 figures; Proceedings for the 2nd LeCosPA Symposium: Everything about Gravity, Celebrating the Centenary of Einstein's General Relativity. Talk on December 17, 2015, Taipei, Taiwan
Comparison of Indoor and Outdoor Power Measurements of Thin Film Modules
Creators: name: Wirth, J.
name: Kratochwil, S.
name: Philipp, D.
name: Weiss, K.-A.
name: Köhl, M.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Components for PV Systems
PV Modules

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 3398-3401
description: Stabilised electrical performance data are necessary to compare different types of modules in the
emerging thin-film PV market and as basic information for energy yield calculations. The problems with accurate
power measurements of thin-film modules are well known. The module test-standard IEC 61646 ed. 2 tries to take
these into account by demanding light-soaking and repeated STC-measurements which leads to time consuming
procedures. The stabilisation behaviour over time of Isc, Voc, efficiency and filling-factor is compared under the
influence of different illuminations. Therefore, IV-curves are measured with a high frequency during outdoor
exposition and indoor exposition to 1000 W/m² irradiation from a class B solar simulator in a climatic cabinet under
temperature-controlled conditions. The results are compared with STC-measurements after different pre-conditioning
procedures.
It turned out that the different module types behave differently with respect to the changes of their properties as a
function of light-soaking exposure time.
Dynamical Casimir-Polder interaction between a chiral molecule and a surface
Creators: name: Barcellona, Pablo
name: Passante, Roberto
name: Rizzuto, Lucia
name: Buhmann, Stefan Yoshi
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We develop a dynamical approach to study the Casimir-Polder force between a initially bare molecule and a magnetodielectric body at finite temperature. Switching on the interaction between the molecule and the field at a particular time, we study the resulting temporal evolution of the Casimir-Polder interaction. The dynamical self-dressing of the molecule and its population-induced dynamics are accounted for and discussed. In particular, we find that the Casimir-Polder force between a chiral molecule and a perfect mirror oscillates in time with a frequency related to the molecular transition frequency, and converges to the static result for large times.
description: 10 pages, 4 figures
The dust environment of comet 67P/Churyumov-Gerasimenko from Rosetta OSIRIS and VLT observations in the 4.5 to 2.9 au heliocentric distance range inbound
Creators: name: Moreno, F.
name: Snodgrass, C.
name: Hainaut, O.
name: Tubiana, C.
name: Sierks, H.
name: Barbieri, C.
name: Lamy, P. L.
name: Rodrigo, R.
name: Koschny, D.
name: Rickman, H.
name: Keller, H. U.
name: Agarwal, J.
name: AHearn, M. F.
name: Barucci, M. A.
name: Bertaux, J. L.
name: Bertini, I.
name: Besse, S.
name: Bodewits, D.
name: Cremonese, G.
name: Da Deppo, V.
name: Davidsson, B.
name: Debei, S.
name: De Cecco, M.
name: Ferri, F.
name: Fornasier, S.
name: Fulle, M.
name: Groussin, O.
name: Gutierrez, P. J.
name: Marques, P. Gutierrez
name: Guettler, C.
name: Hviid, S. F.
name: Ip, W. H.
name: Jorda, L.
name: Knollenberg, J.
name: Kovacs, G.
name: Kramm, J. R.
name: Kuehrt, E.
name: Kueppers, M.
name: Lara, L. M.
name: Lazzarin, M.
name: Moreno, J. J. Lopez
name: Marzari, F.
name: Mottola, S.
name: Naletto, G.
name: Oklay, N.
name: Pajola, M.
name: Thomas, N.
name: Vincent, J. B.
name: Della Corte, V.
name: Fitzsimmons, A.
name: Faggi, S.
name: Jehin, E.
name: Opitom, C.
name: Tozzi, G. P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The ESA Rosetta spacecraft, currently orbiting around comet 67P, has already provided in situ measurements of the dust grain properties from several instruments, particularly OSIRIS and GIADA. We propose adding value to those measurements by combining them with ground-based observations of the dust tail to monitor the overall, time-dependent dust-production rate and size distribution. To constrain the dust grain properties, we take Rosetta OSIRIS and GIADA results into account, and combine OSIRIS data during the approach phase (from late April to early June 2014) with a large data set of ground-based images that were acquired with the ESO Very Large Telescope (VLT) from February to November 2014. A Monte Carlo dust tail code has been applied to retrieve the dust parameters. Key properties of the grains (density, velocity, and size distribution) were obtained from Rosetta observations: these parameters were used as input of the code to considerably reduce the number of free parameters. In this way, the overall dust mass-loss rate and its dependence on the heliocentric distance could be obtained accurately. The dust parameters derived from the inner coma measurements by OSIRIS and GIADA and from distant imaging using VLT data are consistent, except for the power index of the size-distribution function, which is $α$=--3, instead of $α$=--2, for grains smaller than 1 mm. This is possibly linked to the presence of fluffy aggregates in the coma. The onset of cometary activity occurs at approximately 4.3 au, with a dust production rate of 0.5 kg/s, increasing up to 15 kg/s at 2.9 au. This implies a dust-to-gas mass ratio varying between 3.8 and 6.5 for the best-fit model when combined with water-production rates from the MIRO experiment.
description: Accepted by Astronomy and Astrophysics (January 17th, 2016)
LEVERAGING EAC'S SINGLE CUSTOMS TERRITORY FOR IMPROVED SUPPLY CHAIN EFFICIENCY
Creators: name: Mbonigaba Celestin*, A. Dinesh Kumar** & M. Vasuki***
Publisher: name: Zenodo
Year: 2024

description: The East African Community's (EAC) Single Customs Territory (SCT), introduced in 2014, has played a transformative role in enhancing supply chain efficiency across the region. By streamlining customs procedures and reducing border delays, the SCT has significantly improved trade flows among EAC member states. From 2020 to 2024, the initiative led to a remarkable 180% increase in trade volumes, with average customs clearance times dropping from seven days to just two days. This reduction in delays has been instrumental in lowering transaction costs by 60%, making the region more competitive in global trade.

The study employs a mixed-methods approach to evaluate the SCT's impact. Quantitative data from trade reports and customs records provide a clear picture of the improvements in key metrics such as clearance times, transportation costs, and trade volumes. Qualitative insights gathered from interviews with customs officials, business representatives, and policy experts further illuminate the challenges and successes of the SCT's implementation. These insights reveal that while the SCT has greatly enhanced supply chain efficiency, persistent challenges, particularly in infrastructure and regulatory alignment, continue to hinder its full potential.

Key challenges include infrastructure bottlenecks and inconsistent enforcement of SCT regulations across member states. For instance, port congestion at critical transit points like Mombasa and Dar es Salaam has occasionally led to increased transit times, undermining the SCT’s efficiency. Additionally, varying levels of infrastructure development and discrepancies in regulatory practices among EAC countries have caused inefficiencies, with up to 15% of goods experiencing delays due to misaligned customs procedures.

Despite these challenges, the SCT's successes underscore its importance in the region’s economic integration. To sustain and build on these gains, the paper recommends further investment in infrastructure, particularly in expanding key trade corridors and developing inland ports. Strengthening regional cooperation through harmonized trade policies and the establishment of a centralized EAC Customs Authority is also crucial. Moreover, adopting advanced technologies such as block chain for customs documentation and AI-driven risk management systems could further enhance the SCT’s effectiveness, ensuring the region continues to reap the benefits of improved supply chain efficiency.
Community Radiative Transfer Model v3.1.0 User Guide
Creators: name: Johnson, Benjamin
name: Dang, Cheng
Publisher: name: Zenodo
Year: 2024

description: A software guide and technical documentation for the Community Radiative Transfer Model (CRTM) version 3.1.0.

Prepared and released as part of the CRTM v3.1.0 package (https://zenodo.org/records/13376762).
Role of press in political socialization of youth of Pakistan during 2018
Creators: name: Bajwa, Amir
name: Marwan, Amir Hamza
name: Ali, Sajjad
name: Irfan, Muhammad
Publisher: name: University of Limerick
Year: 2022
Subjects: Language, communication and culture

description: This paper examined the political upheaval in Pakistan, the role of the Press and the emerging trend of political socialization of youth are inevitablybecoming a necessity for the political parties. They use the press for their media campaigns, promote their manifestos and to get the support of public. The main motive this study is to dig out the role of press and political socialization of youth during the elections of 2018. Survey design was applied, while questionnaire was used to gather data regarding the political socialization of youth and the role of press. The findings of the study revealed that different political parties employ a variety of strategies to politically socialize the youth, including designed campaigns and promoted their agendas through the media in a way that can socialize the youth.
An Assessment of Photovoltaic Modelling Software Using Real World Performance Data
Creators: name: Lee, G.R.
name: Frearson, L.
name: Rodden, P.
Publisher: name: WIP
Year: 2011
Subjects: PV Systems
Large PV Power Plants and Distributed PV: System Aspects and Grid Connection

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 4339-4343
description: The Desert Knowledge Australia Solar Centre (DKASC) is a solar technology demonstration facility
located in Alice Springs, Central Australia, with over 30 installed Photovoltaic (PV) systems. Data from the DKASC
PV systems, as well as site meteorological data, is publicly available over the internet. PV modelling software is
widely used in the design of PV systems to determine expected energy yield. To date, few independent studies have
been conducted to assess the accuracy of commonly used PV modelling software against real world performance
data. Using the available data collected by the DKASC, six existing PV systems were modelled using four different
modelling tools and the model outputs were assessed against actual system performance. The modelling tools
assessed were PVsyst, HOMER, RETScreen and SMA Sunny Design. In the context of the DKASC, and accounting
for the uncertainties present in the models and testing, the modelling tools were found to be relatively accurate.
Evaluating Contact Resistance Using Epitaxially Grown Phosphorous Emitters
Creators: name: Tous, L.
name: Récaman Payo, M.
name: Ngamo, M.
name: Hernández, J.L.
name: Poortmans, J.
name: Mertens, R.
Publisher: name: WIP
Year: 2011
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Silicon Solar Cell Characterisation and Modelling

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 1413-1417
description: An alternative approach to the standard screen printing of silver for the front side metallization of solar
cells is the implementation of nickel silicide contacts thickened by Cu plating. Properties of the metallization like contact
resistance, junction shunting, adhesion, and line resistance need to be optimized. In this work, we use epitaxially grown
phosphorous emitters to evaluate contact resistance of nickel silicide contacts both using TLM structures and finished
solar cell devices. Additionally we report solar cells with Ni2Si/Cu contacts and epitaxially grown phosphorous emitters
on random pyramid textured Cz with Jsc=36.6 mA/cm2, Voc=627 mV, and FF=78.6% leading to energy conversion
efficiencies of 18% on full Al BSF large area solar cells.
Scattering amplitudes for the rationally extended P T symmetric complex potentials
Creators: name: Kumari, Nisha
name: Yadav, Rajesh Kumar
name: Khare, Avinash
name: Bagchi, Bijan
name: Mandal, Bhabani Prasad
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In this paper, we consider the rational extensions of two different P T symmetric complex potentials namely the asymptotically vanishing Scarf II and asymptotically non-vanishing Rosen-Morse II [ RM-II] potentials and obtain bound state eigenfunc- tions in terms of newly found exceptional Xm Jacobi polynomials and also some new type of orthogonal polynomials respectively. By considering the asymptotic behaviour of the exceptional polynomials, we obtain the reflection and transmission amplitudes for them and discuss the various novel properties of the corresponding amplitudes.
description: 18 pages, Latex, No Figs
Towards Stable Grid Voltage Through Load Sharing in an Indian Grid Connected PV System
Creators: name: Datta, A.
name: Bhattacharya, G.
name: Mukherjee, D.
name: Saha, H.
Publisher: name: WIP
Year: 2011
Subjects: PV Systems
Large PV Power Plants and Distributed PV: System Aspects and Grid Connection

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 4205-4210
description: Voltage instability has always been one of the challenging problems to the operation of Indian grid,
suffering from frequent load-shedding, load fluctuations and poor voltage regulations. Incursion of photovoltaic (PV)
energy in a power grid could pose negative impacts on the system security due to the uncertain output characteristics
of PV generator. This paper presents a study on the relationship between injected active power, reactive power and
voltage phasor at load end in a grid connected PV system to identify the voltage stability limit. A dsPIC based PWM
inverter is developed to monitor and adjust load sharing to satisfy the specified voltage stability margin.
MATLAB/Simulink based simulation validates acceptibility of the system.
Textured Surface Al-Doped ZnO-TCOs Films for Si Based Thin Film Solar Cells via Plused DC Magnetron Reactive Sputtering
Creators: name: Chen, X.-L.
name: Li, L.-N.
name: Ni, J.
name: Geng, X.
name: Zhao, Y.
Publisher: name: WIP-Munich
Year: 2010
Subjects: Thin Film Solar Cells
Amorphous and Microcrystalline Silicon Solar Cells

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 3049-3051
description: Textured surface aluminum doped zinc oxide (ZnO:Al) thin films were directly deposited via plused
direct current (DC) magnetron reactive sputtering on glass substrates. High purity metallic Zn-Al (purity: 99.999%,
Al 2 wt. %) target and oxygen (purity: 99.999%) were used as source materials. During the reactive sputtering
process, the oxygen gas flow rates were controlled by plasma emission monitoring (PEM). The initially as-grown
ZnO:Al films at ~280  exhibit rough cone-like surface morphology (RMS~65.6 nm) with high transparencies and
excellent electrical properties (~3×10-4 Ωcm). The natively textured surface ZnO:Al thin films were promising
TCOs as substrates for PIN-type a-Si thin film solar cells. Large-area (S=30 cm×30 cm) textured AZO coated glass
substrates for Si thin film solar cells are obtained via magnetron reactive sputtering technique.
Coherent Cavitation in the Liquid of Light
Creators: name: Paredes, Ángel
name: Feijoo, David
name: Michinel, Humberto
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We study the cubic- (focusing-)quintic (defocusing) nonlinear Schrödinger equation in two transverse dimensions. We discuss a family of stationary traveling waves, including rarefaction pulses and vortexantivortex pairs, in a background of critical amplitude. We show that these rarefaction pulses can be generated inside a flattop soliton when a smaller bright soliton collides with it. The fate of the evolution strongly depends on the relative phase of the solitons. Among several possibilities, we find that the dark pulse can reemerge as a bright soliton.
Lattice QCD: bulk and transport properties of QCD matter
Creators: name: Ratti, Claudia
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We present an overview of the most recent results on bulk and transport properties of QCD matter inferred from lattice QCD simulations.
description: 8 pages, 7 figures, Proceedings of the Quark Matter 2015 conference, Kobe, Japan
A critical assessment of models of pair-interactions and screening used in analyzing recent warm-dense matter (WDM) experiments
Creators: name: Harbour, L.
name: Dharma-wardana, M. W. C.
name: Klug, D. D.
name: Lewis, L. J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Ultra-fast laser experiments yield increasingly reliable data on warm-dense matter (WDM), but rely on entrenched simplistic theoretical models. We re-analyze two topical experiments, avoiding (i) {\it ad hoc} core-repulsion models, (ii) "Yukawa screening" models and (iii) electron-ion equilibrium assumptions. An accurate, rapid density-functional neutral-pseudoatom model coupled to a hyper-netted-chain (HNC) equation with a bridge term is used to compute structure factors, X-Ray scattering, compressibility, phonons and resistivity. Electronic-structure codes are used to confirm the calculations. The Yukawa and core-repulsion models are shown to be misleading.
description: five figures, four pages
Deposition, Characterization and Modeling of Thin Silicon Tandem Cell on Glass and Foil
Creators: name: Kolodziej, A.
name: Krewniak, P.
name: Baranowski, W.
name: Kolodziej, T.
Publisher: name: WIP-Munich
Year: 2010
Subjects: Thin Film Solar Cells
Amorphous and Microcrystalline Silicon Solar Cells

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 3056-3059
description: The samples of amorphous/nanocrystalline silicon cells were made at periodically altered pressure as
well as in cycles changed H2, SiH4 flows and plasma power by RF PECVD on a glass and also on a foil and were
analyzed in four terminal configuration. The authors focused on fabrication of protocrystalline and nanocrystalline Si
very thin multilayered solar cells with 6%-8% efficiency, and on projecting of thicknesses of component cells as well
as on application of B and C ideas. A role of the front (A) and back reflector (D) will be presented in near future.
The thickness, crystallographic structure as well as film and interface roughnesses of the single amorphous Si:H
single nanocrystalline Si on glass and foil were studied by SIMS, Atomic Force Microscopy (AFM) and Small
Angle X-ray Analyzing.
The analyses of light transmissions and reflections , I-V-C light and dark characteristics as well as two light beam
quantum efficiency measurements for the components were conducted.
Detection Limit of XRF Measurements at Different Synchrotron Radiation Facilities
Creators: name: Zuschlag, A.
name: Hahn, G.
Publisher: name: WIP
Year: 2011
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Silicon Solar Cell Characterisation and Modelling

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 1547-1549
description: The only possibility to determine the spatial distribution of transition metal precipitates in silicon
wafers without destroying the sample is X-Ray Fluorescence (XRF). The purpose of this work is to evaluate the
measurement conditions at different synchrotron radiation facilities. Therefore, we prepared metal test structures with
different sizes on the surface of a FZ silicon wafer by electron beam lithography. The investigation of metal particles
with a known size and distribution allows the determination of the detection limit at different beamline setups. The
gained results are important for further experiments based on synchrotron radiation at different facilities and the
evaluation of XRF results. This investigation leads also to an optimization of the measurement setup due to focusing
on structures with known shape, which results in improved XRF measurement conditions.
The Epoch of Reionization in the R_h=ct Universe
Creators: name: Melia, Fulvio
name: Fatuzzo, Marco
Publisher: name: arXiv
Year: 2015
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The measured properties of the epoch of reionization (EoR) show that reionization probably began around z ~ 12-15 and ended by z=6. In addition, a careful analysis of the fluctuations in the cosmic microwave background indicate a scattering optical depth tau ~ 0.066+/-0.012 through the EoR. In the context of LCDM, galaxies at intermediate redshifts and dwarf galaxies at higher redshifts now appear to be the principal sources of UV ionizing radiation, but only for an inferred (ionizing) escape fraction f_ion ~ 0.2, which is in tension with other observations that suggest a value as small as ~ 0.05. In this paper, we examine how reionization might have progressed in the alternative Friedmann-Robertson Walker cosmology known as the R_h=ct Universe, and determine the value of f_ion required with this different rate of expansion. We find that R_h=ct accounts quite well for the currently known properties of the EoR, as long as its fractional baryon density falls within the reasonable range 0.026 < Omega_b < 0.037. This model can also fit the EoR data with f_ion ~ 0.05, but only if the Lyman continuum photon production is highly efficient and Omega_b ~ 0.037. These results are still preliminary, however, given their reliance on a particular form of the star-formation rate density, which is still uncertain at very high redshifts. It will also be helpful to reconsider the EoR in R_h=ct when complete structure formation models become available.
description: 24 Pages, 10 Figures. Accepted for publication in MNRAS
Coil-to-Sample Distance Influence on Contactless QSSPC Effective Lifetime Measurements : Application to Silicon Wafers Passivated with Thin Amorphous Silicon Layers
Creators: name: Favre, W.
name: Bettaieb, L.
name: Després, J.
name: Alvarez, J.
name: Kleider, J.-P.
name: Djebbour, Z.
name: Mencaraglia, D.
Publisher: name: WIP
Year: 2011
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Silicon Solar Cell Characterisation and Modelling

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 1563-1568
description: The quasi-steady-state photoconductance (QSSPC) technique is well established in both research and
industry for the study of crystalline silicon (c-Si) wafers passivated by thin-films for photovoltaic applications. Other
methods to passivate c-Si wafers, involving liquids such as HF or iodine-methanol have also been reported. In this
case the QSSPC setup needs a re-calibration to avoid effect of the containers’ thickness on the measured
photoconductance. In this paper, the dependence of the QSSPC output values on the distance between the sample and
the stage (lift-off) is studied through both analytical simulation and experimental results. We provide a simple
correction law in order to retrieve the true effective lifetime with no need to change the factory calibration.
Origin of the chaotic motion of the Saturnian satellite Atlas
Creators: name: Renner, S.
name: Cooper, N. J.
name: Moutamid, M. El
name: Sicardy, B.
name: Vienne, A.
name: Murray, C. D.
name: Saillenfest, M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We revisit the dynamics of Atlas. Using Cassini ISS astrometric observations spanning February 2004 to August 2013, Cooper et al. (2015) found evidence that Atlas is currently perturbed by both a 54:53 corotation eccentricity resonance (CER) and a 54:53 Lindblad eccentricity resonance (LER) with Prometheus. They demonstrated that the orbit of Atlas is chaotic, with a Lyapunov time of order 10 years, as a direct consequence of the coupled resonant interaction (CER/LER) with Prometheus. Here we investigate the interactions between the two resonances using the CoraLin analytical model (El Moutamid et al. 2014), showing that the chaotic zone fills almost all the corotation sites occupied by the satellite's orbit. Four 70:67 apse-type mean motion resonances with Pandora are also overlapping, but these resonances have a much weaker effect. Frequency analysis allows us to highlight the coupling between the 54:53 resonances, and confirms that a simplified system including the perturbations due to Prometheus and Saturn's oblateness only captures the essential features of the dynamics.
Numerical assessment of the influence of cutting operations on the fatigue strength of metals
Creators: name: Junior, L.A. Gonçalves
name: Barbu, L.G.
name: Jiménez, S.
name: Cornejo, A.
name: Oller, S.
name: Gustaffsson, D.
name: Olsson, E.
Publisher: name: Zenodo
Year: 2023

description: Presentation delivered by Luis Antonio Gonçalves from CIMNE during the 17th International Conference on Computational Plasticity, Fundamentals and Applications (COMPLAS) taking place from 5 – 7 of September in Barcelona, Spain.
description: The Fatigue4Light project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No. 101006844
Concept for a Real AM1.5 Simulator Based on LED-Technology and Survey on Different Types of Solar Simulators
Creators: name: Swonke, T.
name: Hoyer, U.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Components for PV Systems
PV Modules

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 3377-3379
description: Solar simulators based on conventional lighting systems have – even if declared as class A – the
disadvantage of a relative bad spectral matching to sunlight air mass (AM1.5) spectrum. An opportunity for solving
this problem can be the use of the upcoming light-emitting diode (LED)-technology which could provide a quasicontinuous
spectrum that is very close to the real sunlight. We compare existing solar simulators to LED-based ones
and present first information about a LED-simulator for solar cells which is currently under construction and will
match AM1.5 better than any other device presented till now. This is due to some special designed LEDs which are
not available yet, but are produced for this project.