bluuebunny/crossref_metadata_2025_split huggingface dataset:
A study on the effect of film crystallinity and morphology on charge carrier concentration-dependent hole mobility in pentacene thin-film transistors: advantages of high deposition rate
Authors: Jena Sanjoy , Ray Debdutta 
Published: September 2020

Abstract
The combined effect of deposition rate and substrate temperature on the film crystallinity, morphology, and electronic properties of pentacene is studied. It is shown that the channel mobility in polycrystalline pentacene thin-film transistors is relatively immune to substrate temperature, and the films offer good hole mobility when grown at a high rate. This is advantageous when high throughput with low deviation in electrical parameters over devices are required. The surface morphology is characterized by atomic force microscopy measurements and the crystallinity is studied using x-ray diffraction. The effect of growth parameters on the crystalline phases of pentacene is correlated to the charge carrier transport. It is found that the field-effect mobility is primarily affected by the crystalline phases of the film rather than the grain size. The charge carrier dependence of the hole mobility is used to parameterize the dispersion (width) in the density of states (DOS) of the highest occupied molecular orbital of the films in the transistor channel region. It is found that the presence of multiple phases in the path of the charge carrier flow increases the dispersion of the DOS.
Ruthenium-based fast-responding pressure-sensitive paint for measuring small pressure fluctuation in low-speed flow field
Authors: Egami Y , Hasegawa A , Matsuda Y , Ikami T , Nagai H 
Published: September 2020

Abstract
A sprayable fast-responding pressure-sensitive paint (fast-PSP) has been developed to measure time-resolved small pressure fluctuation on model surfaces. To realize PSP with fast response, high robustness, and high luminescence intensity, we have developed a novel ruthenium complex-based fast-PSP. The binder layers of the proposed fast-PSP were prepared by mixing room-temperature-vulcanizing silicone (silicone) and titanium dioxide (TiO2) particles with different sizes and their effects on the properties including the time response, pressure sensitivity, and luminescence intensity were investigated. The effects of the hydrophilic and hydrophobic surface treatments of TiO2 particle on the structure and mechanical robustness of the binder layer were also studied. The developed fast-PSP was applied to the flow field measurements behind a square cylinder and was evaluated. We have succeeded in obtaining time-series data of pressure fluctuation with high accuracy even at a mean velocity of 20 m s−1.
An improved deep residual network with multiscale feature fusion for rotating machinery fault diagnosis
Authors: Deng Feiyue , Ding Hao , Yang Shaopu , Hao Rujiang 
Published: September 2020

Abstract
Intelligent mechanical fault diagnosis algorithms based on deep learning have achieved considerable success in recent years. However, degradation of the diagnostic accuracy and operational speed has been significant due to unfavorable working conditions and increasing network depth. An improved version of ResNets is proposed in this paper to address these issues. The advantages of the proposed network are presented as follows. Firstly, a multi-scale feature fusion block was designed, to extract multi-scale fault feature information. Secondly, an improved residual block based on depthwise separable convolution was used to improve the operational speed and alleviate the computational burden of the network. The effectiveness of the proposed network was validated by discriminating between diverse health states in a gearbox under normal and noisy conditions. The experimental results show that the proposed network model has a higher classification accuracy than the classical convolutional neural networks, LeNet-5, AlexNet and ResNets and a faster calculation speed than the classical deep neural networks. Furthermore, a visual study of the different stages of the network model was conducted, to effectively comprehend the operational processes of the proposed model.
Self-supporting covalent organic framework membranes synthesized through two different processes: solvothermal annealing and solvent vapor annealing
Authors: Turangan Nikka , Xu Yanan , Spratt Henry , Rintoul Llewellyn , Bottle Steven , MacLeod Jennifer 
Published: September 2020

Abstract
Rigid, freestanding covalent organic framework (COF-1) membranes have been synthesized from 1,4-benzenediboronic acid (BDBA) precursors using two different approaches: room temperature solvent-vapour annealing (SVA) and solvothermal annealing (SA). Characterization of films using Fourier-transform infrared (FTIR) spectroscopy, x-ray diffraction (XRD), and various microscopies shows that the films obtained through the two different routes vary in their retained BDBA proportion, crystal size and macroscale morphology. Gas adsorption measurements give specific surface areas of 579 ± 7 m2 g−1 and 739 ± 11 m2 g−1 respectively, suggesting that the average porosity of these films is competitive with bulk-synthesized COF-1 particles. The films have a stratified structure, with a dense, thin top layer and a thicker, sponge-like base layer. Using nanoindentation, we measured the Young’s modulus at the top surface of the SVA and SA films to be 3.64 ± 1.20 GPa and 3.33 ± 0.12 GPa respectively, with the smaller uncertainty for the SA film attributed to a more uniform morphology. These measurements provide useful experimental data pertaining to COF-1 mechanical properties, furnishing information relevant to the use of these free-standing membranes in applications such as gas filtration or storage.
Shape-controlled synthesis of Ag/Cs4PbBr6 Janus nanoparticles
Authors: Su Sijing , Shen Jialin , Sun Haochen , Tao Jiaqi , Xu Da , Wei Tong , Fan Chao , Wang Ziying , Sun Chun , Bi Wengang 
Published: September 2020

Abstract
The poor light absorption of visible light for Cs4PbBr6 nanocrystals (NCs) has severely impeded their practical applications. Although the semiconductor/perovskite heterostructure holds great promise for enhancement in absorption, it has remained a serious challenge for synthesizing a semiconductor/perovskite heterostructure. In this work, monodispersed Janus heterostructures composed of Cs4PbBr6 decorated with either multiple Ag or single Ag on its surface (named as mAg/Cs4PbBr6 and sAg/Cs4PbBr6 respectively), are successfully prepared. The size of Ag seeds has an important effect on the shape of the products. Small-sized Ag seeds lead to the formation of mAg/Cs4PbBr6 Janus NCs, while relatively large-sized Ag seeds produce sAg/Cs4PbBr6 Janus NCs. It is noted that this work not only provides a novel method for the modification of individual Cs4PbBr6 NCs, but also enhances the absorption of the Cs4PbBr6 in the visible region, indicating great potential for optoelectronic applications, such as photocatalysis and solar cells.
Highly transparent, low sheet resistance and stable Tannic acid modified-SWCNT/AgNW double-layer conductive network for organic light emitting diodes
Authors: Zhu Ze-Ru , Geng Wenming , Zhu Qingxia , Ethiraj Anita Sagadevan , Wang Tao , Jing Li-Chao , Ning Yu-Jie , Tian Yi , Geng Wen-Hao , Wu Lei , Geng Hong-Zhang 
Published: September 2020

Abstract
In this paper, we used tannic acid (TA) functionalized carbon nanotubes (TCNTs), and silver nanowires (AgNWs) to construct a new type of transparent conductive film (TCF) with a double-layered conductive network structure. The hybrid film exhibits excellent light transmittance, high electrical conductivity, ultra-flexibility, and strong adhesion. These outstanding performances benefit from the filling and adhesion of hydrophilic TCNT layers to the AgNW networks. Besides, we introduced the post-treatment process of mechanical pressing and covering polymer conductive polymer PEDOT:PSS, which obtained three layers of TCNT/AgNW/PEDOT hybrid film and greatly improved the comprehensive properties. The hybrid film can reach a sheet resistance of 9.2 Ω sq−1 with a transmittance of 83.4% at 550 nm wavelength, and a low root mean square (RMS) roughness (approximately 3.8 nm). After 10 000 bends and tape testing, the conductivity and transmittance of the hybrid film remain stable. The resistance of the film has no significant degradation after 14 d of exposure to high temperature of 85 °C and humidity of 85%, indicating excellent stability. The organic light-emitting diodes (OLEDs) with TCNT/AgNW/PEDOT hybrid film as anode exhibit high current density and luminosity, confirming this process has considerable potential application in photovoltaic devices.
Dynamic experimental behavior of sandwich beams with honeycomb core filled with magnetic rheological gel: a statistical approach
Authors: Faria Lucas Eduardo Ribeiro , Gomes Guilherme Ferreira , Gomes de Sousa Sara Raquel , Bombard Antonio José Faria , Ancelotti Jr Antonio Carlos 
Published: September 2020

Abstract
With the rapid advancement of technology comes the need for lighter weight and higher strength materials, so studies on new materials and manufacturing techniques are needed. The aeronautics industry is always at the forefront of researching new materials, where the weight factor is crucial. In contrast, aircraft suffer from intense mechanical vibration and the ability to control these vibrations is of paramount importance for stability of the aircraft and its structural integrity. To control these intense vibrations, intelligent materials have been pointed as a possible resource for vibration control, since it is possible to vary the modal frequencies of the structure through electrical or magnetic excitations. The objective of this study is to analyze the dynamic behavior under the influence of vibrations in sandwich beams, which have honeycomb cores filled with magnetorheological (MR) gels and composite material skins. The development of the work has an experimental analysis through free and forced vibration tests to determine the modal parameters of the beams built according to the applied magnetic field intensity, and a statistical analysis to determine the design factors that most impacted this process. With the results obtained, the use of these materials is promising in structures, due to the fact that they achieve reductions in the value of natural frequencies in the order of 54%, increase in damping factors of up to 390% and decrease in forced vibration amplitude of 40% in relation to the use of a magnetic field. Results obtained from design of experiments showed that the factor that most influenced the response of free and forced vibration assays was the gel. For this, it is proposed new models of smart beams, since there are few studies in the honeycomb core filled with MR gel.
Transverse-pressure susceptibility of high-Jc
RRP and PIT types of Nb3Sn Rutherford cables for accelerator magnets
Authors: Gao P , Dhallé M , Bordini B , Ballarino A , Ten Kate H H J 
Published: September 2020

Abstract
In the frame of the High-Luminosity Large Hadron Collider construction and Future Circular Collider development program, the magnetic field in the accelerator dipole magnets is being enhanced to 11 T, and 15 T to 16 T level, respectively. Advanced Nb3Sn superconductors with a non-copper critical current density exceeding 2500 A mm−2 at 4.2 K and 12 T, are being developed using the Restacked-Rod-Process (RRP) and Powder-In-Tube (PIT) wire technologies. However, since Nb3Sn is extremely brittle, it is a significant challenge to construct the high-field dipole magnets with such very strain-susceptible superconductor. The high-level of stress acting on the wide face of the Rutherford cables in the coils of 120 MPa to 200 MPa generated by the Lorenz’ force, causes initially a reversible reduction and eventually at some stress level followed by permanent degradation of the critical current when strain goes to high. This study sets out to examine the critical current and upper critical field performance of state-of-the-art RRP and PIT Nb3Sn Rutherford cables in terms of transverse pressure. The variation of the critical current and upper critical field due to the thermal- and mechanical load-cycling was investigated as well. For reference, the critical current of witness wires characterized on standard ITER type barrels were also measured. The results indicate that the RRP type of Nb3Sn Rutherford cables, when fully impregnated with epoxy resin, are able to withstand a transverse stress of 170 MPa to 250 MPa without noticeable irreversible critical current reduction. For the transverse pressure limit for present PIT type of Nb3Sn Rutherford cables somewhat lower values are found at the level of 50 MPa to 120 MPa. Therefore, given the present cables, the high-field dipole magnet construction can be realized using the RRP Nb3Sn Rutherford cables, while for PIT type cables more cable development is requested to enhance the onset of irreversible degradation. The reversible critical current reduction in RRP type of cables of 10% at 150 MPa to 250 MPa needs to be taken into account when predicting magnet performance. Finally, extreme care needs to be taken into account for Nb3Sn coil fabrication, since the experimental results show significant critical current reduction due to stress concentrations already at 0.2° misalignment angles between the pressure applying surface and the surface of the impregnated cable.
Analysis of mechanical behavior in inhomogeneous high-temperature superconductors under pulsed field magnetization
Authors: Wu Haowei , Yong Huadong , Zhou Youhe 
Published: September 2020

Abstract
Melt-textured large, single-grain REBCO (RE: rare earth element or Y) bulk superconductors have growth sector boundaries (GSBs) and growth sector regions (GSRs). The critical current density is dependent on the GSBs and the GSRs, which will influence the electromagnetic field and the temperature field distributions. REBCO bulk superconductors are brittle materials and during the manufacturing process, cracks and inclusions may exist, therefore it is necessary to analyze the mechanical response during the magnetization process. In this paper, the mechanical response of an inhomogeneous cylinder superconductor under electromagnetic stress and the thermal stress during the pulsed field magnetization process is studied. By solving the coupled magnetic and heat diffusion equations in association with a modified

E
−
J

power-law relationship, we can obtain the electromagnetic field and the temperature field distributions; then, the mechanical response of the bulk can be determined. The trend shown by our numerical simulation is consistent with the experimental results. Then we study the mechanical behavior of inhomogeneous high-temperature superconductors with and without a flux jump. The case without or with the SUS 304 ring is also analyzed.
Neural-network accelerated coupled core-pedestal simulations with self-consistent transport of impurities and compatible with ITER IMAS
Authors: Meneghini O. , Snoep G. , Lyons B.C. , McClenaghan J. , Imai C.S. , Grierson B. , Smith S.P. , Staebler G.M. , Snyder P.B. , Candy J. , Belli E. , Lao L. , Park J.M. , Citrin J. , Cordemiglia T.L. , Tema A. , Mordijck S. 
Published: September 2020

Abstract
An integrated modeling workflow capable of finding the steady-state plasma solution with self-consistent core transport, pedestal structure, current profile, and plasma equilibrium physics has been developed and tested against a DIII-D discharge. Key features of the achieved core-pedestal coupled workflow are its ability to account for the transport of impurities in the plasma self-consistently, as well as its use of machine learning accelerated models for the pedestal structure and for the turbulent transport physics. Notably, the coupled workflow is implemented within the One Modeling Framework for Integrated Tasks (OMFIT) framework, and makes use of the ITER integrated modeling and analysis suite data structure for exchanging data among the physics codes that are involved in the simulations. Such technical advance has been facilitated by the development of a new numerical library named ordered multidimensional arrays structure.
Retraction: Intelligent Model for Electric Power Management: Patterns (Journal of Physics: Conference Series
1432 012032)
Authors: Viloria Amelec , Palma Hugo Hernández , Suarez Ramiro Gamboa , Núñez William Niebles , Movilla José Solórzano 
Published: September 2020

Published 15 September 2020
This article, and others within this volume, has been retracted by IOP Publishing following clear evidence of plagiarism and citation manipulation.
This work was originally published in Spanish (1) and has been translated and published without permission or acknowledgement to the original authors. IOP Publishing Limited has discovered other papers within this volume that have been subjected to the same treatment. This is scientific misconduct.
Misconduct investigations are ongoing at the author’s institutions. IOP Publishing Limited will update this notice if required once those investigations have concluded. To date, there is no evidence to suggest anyone other than Amelec Viloria / Jesus Silva was directly culpable for the actions that led to retraction.
Misconduct investigations are ongoing at the author’s institutions. IOP Publishing Limited will update this notice if required once those investigations have concluded.
Anyone with any information regarding these papers is requested to contact conferenceseries@ioppublishing.org.
Retraction: Big Data and Automatic Detection of Topics: Social Network Texts (Journal of Physics: Conference Series
1432 012073)
Authors: Silva Jesús , Palma Hugo Hernández , Núñez William Niebles , Ruiz-Lazaro Alex , Varela Noel 
Published: September 2020

Published 15 September 2020
This article, and others within this volume, has been retracted by IOP Publishing following clear evidence of plagiarism and citation manipulation.
This work was originally published in Spanish (1) and has been translated and published without permission or acknowledgement to the original authors. IOP Publishing Limited has discovered other papers within this volume that have been subjected to the same treatment. This is scientific misconduct.
Misconduct investigations are ongoing at the author’s institutions. IOP Publishing Limited will update this notice if required once those investigations have concluded. To date, there is no evidence to suggest anyone other than Amelec Viloria / Jesus Silva was directly culpable for the actions that led to retraction.
IOP Publishing Limited request any citations to this article be redirected to the original work (1).
Anyone with any information regarding these papers is requested to contact conferenceseries@ioppublishing.org.
Retraction: Electrical Consumption Patterns through Machine Learning (Journal of Physics: Conference Series
1432 012093)
Authors: Viloria Amelec , Naveda Alexa Senior , Palma Hugo Hernández , Núñez William Niebles , Núñez Leonardo Niebles 
Published: September 2020

Published 15 September 2020
This article, and others within this volume, has been retracted by IOP Publishing following clear evidence of plagiarism and citation manipulation.
This work was originally published in Spanish (1) and has been translated and published without permission or acknowledgement to the original authors. IOP Publishing Limited has discovered other papers within this volume that have been subjected to the same treatment. This is scientific misconduct.
Misconduct investigations are ongoing at the author’s institutions. IOP Publishing Limited will update this notice if required once those investigations have concluded. To date, there is no evidence to suggest anyone other than Amelec Viloria / Jesus Silva was directly culpable for the actions that led to retraction.
IOP Publishing Limited request any citations to this article be redirected to the original work (1).
Anyone with any information regarding these papers is requested to contact conferenceseries@ioppublishing.org.
Retraction: Method for Collecting Relevant Topics from Twitter supported by Big Data (Journal of Physics: Conference Series
1432 012094)
Authors: Silva Jesús , Naveda Alexa Senior , Suarez Ramiro Gamboa , Palma Hugo Hernández , Núñez William Niebles 
Published: September 2020

Published 15 September 2020
This article, and others within this volume, has been retracted by IOP Publishing following clear evidence of plagiarism and citation manipulation.
This work was originally published in Spanish (1) and has been translated and published without permission or acknowledgement to the original authors. IOP Publishing Limited has discovered other papers within this volume that have been subjected to the same treatment. This is scientific misconduct.
Misconduct investigations are ongoing at the author’s institutions. IOP Publishing Limited will update this notice if required once those investigations have concluded. To date, there is no evidence to suggest anyone other than Amelec Viloria / Jesus Silva was directly culpable for the actions that led to retraction.
IOP Publishing Limited request any citations to this article be redirected to the original work (1).
Anyone with any information regarding these papers is requested to contact conferenceseries@ioppublishing.org.
Coriolis Coupling in the Continuum
Authors: Macchiavelli A. O. , Casten R. F. , Clark R. M. , Crawford H. L. , Fallon P. 
Published: September 2020

Abstract
In 1956 A. Kerman explained the observed energy levels of the lowest K = 1/2 and K = 3/2 bands in 183W as resulting from rotational perturbations due to the effects of the Coriolis force. Following from that seminal paper, in this work we consider Kerman’s problem when one of the Nilsson single-particle levels involved is a resonant state. This is the simplest model of Coriolis mixing that allows for analytical expressions derived in first-order perturbation theory, without losing the main physical ingredients of the continuum effects. We present results for the perturbed solution of the ground state band energies as a function of the state width, which suggest a general behavior of both increased moment of inertia and staggering.
Neutron-Proton Pairing and its Impact on Gamow-Teller Transitions
Authors: Pittel S. , Carranza M. A. , Hirsch J. G. 
Published: September 2020

Abstract
We report a systematic study of Gamow-Teller (GT) transitions in the 2p1f shell, using the nuclear shell model with a schematic Hamiltonian. The Hamiltonian used contains a quadrupole-quadrupole interaction, isoscalar (T = 0) and isovector (T = 1) pairing interactions as well as a single-particle energy term. The objective of the work is to observe the behavior of GT transitions in different isoscalar and isovector pairing scenarios. We also study their corresponding effect on the energy spectra of the parent and daughter nuclei involved in the GT decays. All results are discussed in relation to experimental data. A key conclusion reached is that with the schematic Hamiltonian we use it is essential to suppress the isoscalar pairing mode when treating nuclei with a neutron excess to avoid producing spurious results for the ground state spin and parity. Varying the strength parameters for the two pairing modes is found to exhibit different but systematic effects on GT transition properties and on the corresponding energy spectra.