Academic literature on the topic 'J-V curves'

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Journal articles on the topic "J-V curves"

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ULAS, MACIEJ. "A NOTE ON HIGHER TWISTS OF ELLIPTIC CURVES." Glasgow Mathematical Journal 52, no. 2 (2010): 371–81. http://dx.doi.org/10.1017/s0017089510000066.

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AbstractWe show that for any pair of elliptic curves E1, E2 over ℚ with j-invariant equal to 0, we can find a polynomial D ∈ ℤ[u, v] such that the cubic twists of the curves E1, E2 by D(u, v) have positive rank over ℚ(u, v). We also prove that for any quadruple of pairwise distinct elliptic curves Ei, i = 1, 2, 3, 4, with j-invariant j = 0, there exists a polynomial D ∈ ℤ[u] such that the sextic twists of Ei, i = 1, 2, 3, 4, by D(u) have positive rank. A similar result is proved for quadruplets of elliptic curves with j-invariant j = 1, 728.
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ULAS, MACIEJ. "VARIATIONS ON HIGHER TWISTS OF PAIRS OF ELLIPTIC CURVES." International Journal of Number Theory 06, no. 05 (2010): 1183–89. http://dx.doi.org/10.1142/s1793042110003472.

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In this note we show that for any pair of elliptic curves E1, E2 over ℚ with j-invariant equal to 0, we can find a polynomial D ∈ ℤ[u, v, w, t] such that the sextic twists of the curves E1, E2 by D(u, v, w, t) have rank ≥ 2 over the field ℚ(u, v, w, t). A similar result is proved for simultaneous quartic twists of pairs of elliptic curves with j-invariant 1728.
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Tchernov, Vladimir. "ARNOLD-TYPE INVARIANTS OF CURVES ON SURFACES." Journal of Knot Theory and Its Ramifications 08, no. 01 (1999): 71–97. http://dx.doi.org/10.1142/s0218216599000079.

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Recently V. Arnold introduced Strangeness and J± invariants of generic immersions of an oriented circle to ℝ2. Here these invariants are generalized to the case of generic immersions of an oriented circle to an arbitrary surface F. We explicitly describe all the invariants satisfying axioms, which naturally generalize the axioms used by V. Arnold.
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Venegas, José G., R. Scott Harris, and Brett A. Simon. "A comprehensive equation for the pulmonary pressure-volume curve." Journal of Applied Physiology 84, no. 1 (1998): 389–95. http://dx.doi.org/10.1152/jappl.1998.84.1.389.

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Venegas, José G., R. Scott Harris, and Brett A. Simon.A comprehensive equation for the pulmonary pressure-volume curve. J. Appl. Physiol. 84(1): 389–395, 1998.—Quantification of pulmonary pressure-volume (P-V) curves is often limited to calculation of specific compliance at a given pressure or the recoil pressure (P) at a given volume (V). These parameters can be substantially different depending on the arbitrary pressure or volume used in the comparison and may lead to erroneous conclusions. We evaluated a sigmoidal equation of the form, V = a + b[1 +[Formula: see text]]−1, for its ability to
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Sonander, Hans-G. "Letters to the Editor." Journal of Applied Physiology 85, no. 5 (1998): 1998–2000. http://dx.doi.org/10.1152/jappl.1998.85.5.1998.

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The following is the abstract of the article discussed in the subsequent letter: Venegas, José G., R. Scott Harris, and Brett A. Simon. A comprehensive equation for the pulmonary pressure-volume curve. J. Appl. Physiol. 84(1): 389–395, 1998.—Quantification of pulmonary pressure-volume (P-V) curves is often limited to calculation of specific compliance at a given pressure or the recoil pressure (P) at a given volume (V). These parameters can be substantially different depending on the arbitrary pressure or volume used in the comparison and may lead to erroneous conclusions. We evaluated a sigmo
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Baik, Jihye, Junbum Park, Gyeongjun Lee, Sungchul Kim, and Jungho Kim. "Effects of Incoherent Front Cover Glass on Current-Voltage Characteristics of Cu(In,Ga)Se2 Solar Cells: Investigation into Calculation Accuracy for Cover Glass Modeled as Optically Coherent or Incoherent." Applied Sciences 10, no. 9 (2020): 3312. http://dx.doi.org/10.3390/app10093312.

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We numerically investigate the effects of an incoherent front cover glass on the current–voltage (J–V) characteristics of a Cu(In,Ga)Se2 (CIGS) solar cell using an integrated optoelectronic model. A 3-mm cover glass—the thickness of which was larger than the coherence length of sunlight—was incoherently modeled based on the equispaced thickness averaging method, where coherent simulation results of the wave equation were averaged over a set of equispaced phase thicknesses. The changes in optical power dissipation, absorptivity and electron–hole pair generation rate were calculated depending on
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Liu, Yueli, Qiao Chen, Aohan Mei, Bin Hu, Zifan Yang, and Wen Chen. "Bandgap aligned Cu12Sb4S13 quantum dots as efficient inorganic hole transport materials in planar perovskite solar cells with enhanced stability." Sustainable Energy & Fuels 3, no. 3 (2019): 831–40. http://dx.doi.org/10.1039/c9se00003h.

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Lu, Honglin, Jia Zhuang, Zhu Ma, et al. "Crystal recombination control by using Ce doped in mesoporous TiO2 for efficient perovskite solar cells." RSC Advances 9, no. 2 (2019): 1075–83. http://dx.doi.org/10.1039/c8ra07800a.

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Luo, Paifeng, Zhaofan Liu, Wei Xia, Chenchen Yuan, Jigui Cheng, and Yingwei Lu. "A simple in situ tubular chemical vapor deposition processing of large-scale efficient perovskite solar cells and the research on their novel roll-over phenomenon in J–V curves." Journal of Materials Chemistry A 3, no. 23 (2015): 12443–51. http://dx.doi.org/10.1039/c5ta02306h.

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Zeng, Yuheng, Zetao Ding, Zunke Liu, et al. "Efficiency-loss analysis of monolithic perovskite/silicon tandem solar cells by identifying the patterns of a dual two-diode model’s current-voltage curves." Journal of Semiconductors 44, no. 8 (2023): 082702. http://dx.doi.org/10.1088/1674-4926/44/8/082702.

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Abstract In this work, we developed a simple and direct circuit model with a dual two-diode model that can be solved by a SPICE numerical simulation to comprehensively describe the monolithic perovskite/crystalline silicon (PVS/c-Si) tandem solar cells. We are able to reveal the effects of different efficiency-loss mechanisms based on the illuminated current density-voltage (J-V), semi-log dark J-V, and local ideality factor (m-V) curves. The effects of the individual efficiency-loss mechanism on the tandem cell’s efficiency are discussed, including the exp(V/V T) and exp(V/2V T) recombination
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Dissertations / Theses on the topic "J-V curves"

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Rádsetoulal, Milan. "Hodnocení lomového chování svarových spojů používaných v energetickém průmyslu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-442748.

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This thesis is focused on assessment of fracture behaviour of heterogeneous welded joint. The goal is to determine fracture behaviour at the interface of ferritic base metal and austenitic weld metal at temperature of 255°C. This kind of weld is widely used at energy industry. Fracture toughness was evaluated using CT specimens with size 0,5T in order to determine the initiation values of stable crack propagation. Fracture behaviour of the weld is correlated with results of metallography and fractography analysis. Both light and scanning electron microscopy is used for fractography analysis. A
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Esteves, Beatriz Oliveira. "Perovskite solar cells: Optimization of Cost-Effective Production." Master's thesis, 2018. http://hdl.handle.net/10362/56432.

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Solar energy exploitation via photovoltaic (PV) technology has become the main route to achieve sustainable development. The emerging perovskite-based PV is considered one of the most promising alternative technologies to the conventional Silicon solar cells, since perovskites are a class of semiconductor materials with quite favourable optoelectronic proprieties that allow attaining high sunlight-to-electricity conversion efficiency. The main objective of this work is to improve the performance of perovskite solar cells (PSCs) using low-cost techniques and materials. Here, the perovskite (CH
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Lu, Huitzu, and 呂惠慈. "Interpreting Performance of Dye-Sensitized Solar Cells in Terms ofParameters in the J-V Characteristic Curve and EIS Equivalent Circuit." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/20129587594256530631.

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碩士<br>國立宜蘭大學<br>化學工程與材料工程學系碩士班<br>101<br>Due to their low cost fabrication and relatively high conversion efficiencies, dye-sensitized solar cells (DSSCs) receive a primary attention in this study. The main objectives are threefold. One is applying one-diol equivalent circuit model over the current density-voltage (J-V) curves obtained from the literature. The other one is to use the previous model to examine the graphene-containing electrode in DSSCs. The last one is to evaluate the DSSCs with via electrochemical impedance spectroscopic (EIS) data. The modeling of electric parameters i
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Book chapters on the topic "J-V curves"

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Tress, Wolfgang. "Further Origins of S-shaped J-V Curves." In Organic Solar Cells. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-10097-5_7.

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Tress, Wolfgang. "Interplay Between Electrodes and Active Materials: The Open-Circuit Voltage and S-shaped J-V Curves." In Organic Solar Cells. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-10097-5_6.

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Huu Hieu, Nguyen. "Graphene-Based Material for Fabrication of Electrodes in Dye-Sensitized Solar Cells." In Solar Cells [Working Title]. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.93637.

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Graphene-based materials have been widely studied for the fabrication of electrodes in dye-sensitized solar cells (DSSCs). The use of graphene in the cathode is to reduce the amount of platinum (Pt), which in turn is expected to reduce the production cost of DSSCs. Additionally, in the structure of cathode, graphene acts as a supporting material to reduce the particle sizes of Pt and helps to maintain the high efficiency of DSSCs. For anodes, graphene can provide a more effective electron transfer process, resulting in the improvement of efficiency of DSSCs. In this chapter, the use of graphen
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"Craig v. Boren." In Milestone Documents of the Supreme Court. Schlager Group Inc., 2023. https://doi.org/10.3735/9781935306870.book-part-065.

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The U.S. Supreme Court case of Craig v. Boren (1976) introduced the “intermediate scrutiny” test to assess government actions based on gender. Oklahoma had passed a statute prohibiting the sale of “nonintoxicating” 3.2 percent beer to males under the age of twenty-one while permitting females over the age of eighteen to purchase it. Two young men, Mark Walker and Curtis Craig, brought suit, challenging the law as a violation of the Fourteenth Amendment equal protection clause; they were joined by an alcohol vendor, Carolyn Whitener. The lower courts dismissed the case, saying that the state of
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Cavalcanti, Ianê Augusto Muraro, Leonardo Oliveira de Souza, Lucas Henrique da Costa Cavalcanti, Raissa Oliveira de Azevedo, and Janaína dos Santos Dias. "Capítulo 2 – Meu corpo está se transformando Não sou mais menino Não sou mais menina." In Adole Saúde. Pontifícia Universidade Católica de São Paulo, 2025. https://doi.org/10.29327/5595655.1-2.

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E aí, pessoal! Preparem-se para uma das fases mais incríveis da vida: a puberdade! Que faz parte da adolescência ou de forma carinhosa Adole. É como se o corpo de vocês passasse por uma reforma geral, sem aviso prévio, sabe? De repente, tudo muda, e é normal, é fisiológico. O legal é que todo mundo passa ou vai passar por isso! Vamos então aprender um pouco sobre essa fase tão importante da vida. A puberdade é tipo a ponte entre a infância e a adolescência. Seu corpo começa a se preparar para a vida adulta e para quem sabe um dia, construir sua família, ter filhos, ser um grande profissional.
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Conference papers on the topic "J-V curves"

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Tandon, Samarth, Ming Gao, Ravi Krishnamurthy, Richard Kania, and Gabriela Rosca. "Estimating J-R Curve From CVN Upper Shelf Energy and its Application." In 2016 11th International Pipeline Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/ipc2016-64618.

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Accuracy in predictions of burst pressures for cracks in pipelines has significant impact on the pipeline integrity management decisions. One of the fracture mechanics models used for failure pressure prediction is API 579 Level 3 FAD ductile tearing instability analysis that requires J-R curves, i.e., crack resistance curves, for the assessment. However, J-R curves are usually unavailable for most pipelines. To overcome this technical barrier, efforts have been made to estimate the J-R curve indirectly from commonly available toughness data, such as the Charpy V-notched Impact Energy CVN valu
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Scire, Daniele, Marco Bonadonna, Yifeng Zhao, et al. "Analysis of Transition Metal Oxides based Heterojunction Solar Cells with S-shaped J-V curves." In 2020 AEIT International Annual Conference (AEIT). IEEE, 2020. http://dx.doi.org/10.23919/aeit50178.2020.9241142.

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Hui, Lin, Jungsheng Yu, Yue Zang, Jian Zhong, Jiang Quan, and Lei Zhang. "Diminishing of S-shaped J-V curves by substrate heating in organic solar cells based on triplet materials." In 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT 2012), edited by Yadong Jiang, Junsheng Yu, and Zhifeng Wang. SPIE, 2012. http://dx.doi.org/10.1117/12.979183.

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Silva, Mauri´cio Carvalho, Eduardo Hippert, and Claudio Ruggieri. "Experimental Investigation of Ductile Tearing Properties for API X70 and X80 Pipeline Steels." In ASME 2005 Pressure Vessels and Piping Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/pvp2005-71147.

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This work presents an investigation of the ductile tearing properties for API 5L X70 and X80 pipeline steels using experimentally measured crack growth resistance curves (J-R curves). Testing of the pipeline steels employed compact tension (C(T)) fracture specimens to determine the J-R curves based upon the unloading compliance method using a single specimen technique in accordance with the ASTM E1820 standard procedure. Conventional tensile tests and Charpy V-Notch tests were also performed to determine the mechanical and impact properties for the tested materials. Severe splitting running pa
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Sirois, F. "Development of a numerical method to determine the local E-J characteristics of anisotropic HTS from experimental V-I curves." In ADVANCES IN CRYOGENIC ENGINEERING: Proceedings of the International Cryogenic Materials Conference - ICMC. AIP, 2002. http://dx.doi.org/10.1063/1.1472656.

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Le Delliou, Patrick, Ste´phane Marie, Yann Kayser, and Bruno Barthelet. "Development of a J-Estimation Scheme for Surface Cracks in Piping Welds." In 16th International Conference on Nuclear Engineering. ASMEDC, 2008. http://dx.doi.org/10.1115/icone16-48393.

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The RSE-M Code provides rules and requirements for in-service inspection of French Pressurized Water Reactor power plants. The Code gives non mandatory guidance for analytical evaluation of flaws. Flaw assessment procedures rely on fracture mechanics analyses based on simplified methods (i.e. analytical). Analytical methods were developed under a cooperative program between EDF, CEA and AREVA NP to calculate the J integral in various cracked piping components (straight pipe, tapered transition, elbow and pipe-to-elbow junction). These methods are available for mechanical loading (in-plane bend
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Sozzi, Giovanna, Simone Di Napoli, Roberto Menozzi, et al. "Influence of Conduction Band Offsets at Window/Buffer and Buffer/Absorber Interfaces on the Roll-Over of J-V Curves of CIGS Solar Cells." In 2017 IEEE 44th Photovoltaic Specialists Conference (PVSC). IEEE, 2017. http://dx.doi.org/10.1109/pvsc.2017.8366649.

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Yaguchi, H., S. Murakami, N. Fujitsuna, T. Shinya, M. Yamada, and T. Sakai. "Long-Term Isothermal Aging Behavior of V-Modified 2.25Cr-1Mo Steels." In ASME/JSME 2004 Pressure Vessels and Piping Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/pvp2004-3067.

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Long-term isothermal aging behavior up to 30,000h has been investigated in V-modified 2.25Cr-1Mo steels. When impurity elements were added, FATT in Charpy impact test vs. aging time curves showed basically of parabolic type, indicating the importance of segregation of impurities as the critical factor in controlling temper embrittlement. On the other hand, when the amount of impurities was small, FATT showed complex behavior with aging time. This suggests the importance of other factors in controlling temper embrittlement such as recovery of dislocations and enlargement of various carbide prec
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Xu, S., L. Yang, J. Xue, J. Liang, and W. R. Tyson. "Effect of Crack Orientation on Toughness of Contemporary EW Pipe Seam Welds." In 2022 14th International Pipeline Conference. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/ipc2022-80723.

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Abstract Toughness values of pipe steel and welds are key mechanical properties for material specification and integrity assurance. Toughness is influenced by crack size (deep vs. shallow), loading mode (bending vs. tension), crack orientation and sampled microstructure (notch location in weldments). To the best of the authors’ knowledge, no data exist in the open literature for crack orientation effects on Electric Welded (EW) welds. Charpy notch toughness and single-edge-notched bend (SE(B)) fracture toughness tests using surface-notched specimens of three modern (EW) pipe seam welds were pe
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Gianetto, James, William Tyson, Yong-Yi Wang, John Bowker, Dong-Yeob Park, and Guowu Shen. "Mechanical Properties and Microstructure of Weld Metal and HAZ Regions in X100 Single and Dual Torch Girth Welds." In 2010 8th International Pipeline Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/ipc2010-31411.

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The main objectives of the current study were to further develop tensile and toughness testing protocols and to provide a better understanding of the factors that control both weld metal and HAZ microstructure and properties in pipeline girth welds. In this investigation, two series of rolled (1G) girth welds were made in X100 pipe of 36 in. diameter and 0.750 in. wall thickness using two pulsed-gas metal arc welding process variants: single and dual torch. The small-scale testing program included evaluations of all-weld-metal tensile strength, Charpy impact and standard fracture toughness mea
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