bluuebunny/crossref_metadata_2025_split huggingface dataset:
Microstructure and substrate dependent enhanced critical current density in Pb-substituted Bi-based high temperature superconducting thin films
Authors: V Gayathri , A T Sathyanarayana , K Vinod , Geetha Kumary T , Mani Awadhesh 
Published: November 2022

Abstract
A comparative study was carried out using magnetization measurements to understand the diamagnetic response of the superconducting thin films of Bi1.75Pb0.25Sr2Ca2Cu3O10±δ
grown on two different substrates. The film grown on SrTiO3 substrate was found to exhibit enhanced superconducting properties than the film grown on LaAlO3 substrate. The strengthening of the intergrain coupling by the growth of the larger grains with better grain connectivity and enhanced pinning mechanism yielded a critical current density as high as ∼4.8 × 105 Acm−2 in the film grown on SrTiO3 substrate. An enhancement in the value of the critical current density with the decrease in the dimensionality of the sample on account of a change in the microstructure was observed. As revealed from the AC susceptibility measurements, the metallic nature of the weak links conveys that the weak links are essentially the coexisting secondary phases in these films. Furthermore, the paramagnetic Meissner effect was observed in these films, which can be explained within the realm of the flux compression models.
Cherenkov radiation from stars constrains hybrid MOND dark matter models
Authors: Mistele Tobias 
Published: November 2022

Abstract
We propose a new method to constrain alternative models for dark matter with observations.
Specifically, we consider hybrid models
in which cold dark matter (CDM) phenomena on cosmological scales
and Modified Newtonian Dynamics (MOND) phenomena on galactic scales share a common origin.
Various such models were recently proposed.
They typically contain a mode that is directly coupled to matter (for MOND)
and has a non-relativistic sound speed (for CDM).
This allows even non-relativistic objects like stars to lose energy through Cherenkov radiation.
This is unusual.
Most modified gravity models have a relativistic sound speed,
so that only high-energy cosmic rays emit Cherenkov radiation.
We discuss the consequences of this Cherenkov radiation from stars.
Thermoelectric transport in holographic quantum matter under shear strain
Authors: Ji Teng , Li Li , Sun Hao-Tian 
Published: November 2022

Abstract
We study thermoelectric transport under shear strain in two spatial dimensional quantum matter using the holographic duality. General analytic formulae for the DC thermoelectric conductivities subjected to finite shear strain are obtained in terms of black hole horizon data. Off-diagonal terms in the conductivity matrix also appear at zero magnetic field, resembling an emergent electronic nematicity, which cannot nevertheless be identified with the presence of an anomalous Hall effect. For an explicit model study, we numerically construct a family of strained black holes and obtain the corresponding nonlinear stress–strain curves. We then compute all electric, thermoelectric, and thermal conductivities and discuss the effects of strain. While the shear elastic deformation does not affect the temperature dependence of thermoelectric and thermal conductivities quantitatively, it can strongly change the behavior of the electric conductivity. For both shear hardening and softening cases, we find a clear metal-insulator transition driven by the shear deformation. Moreover, the violation of the previously conjectured thermal conductivity bound is observed for large shear deformation.
Characteristic of mass movement in Riam Kanan watershed, Indonesia
Authors: Arisanty D , Hastuti K P , Saputra A N , Muhaimin M , Setiawan F A 
Published: November 2022

Abstract
Mass movement occurred in upstream in Riam Kanan Watershed due to this area is part of Meratus Mountain. The objective of study is to analyse the vulnerability class of mass movement in the upstream of Riam Kanan Watershed and to analyse the characteristics of the mass movement in the upstream of Riam Kanan Watershed based aspects of morphology and morphogenesis. This study used the survey method, to determine the vulnerability class mass movement using slope maps and vegetation density map. Aspects of morphology and morphogenesis are used to determine the characteristics of mass movement. Aspects of morphology are slope of hill. Aspects of morphogenesis includes soil depth and rock weathering. The research area is dominated by medium and high vulnerability classes i.e. 54,804.47 Ha and 36,546.04 Ha. The mass movement type in the landform of weak eroded of denudation hills, metamorphic rock material (D1) is rotational landslides and rock fall. Rotational landslide has the characteristic of slope > 25°, the soil thickness ranges from 1-2 m and occurring of rock weathering. Rock fall has the characteristic of slope > 45°, about 30 cm of soil thickness, low vegetation density, further weathering.
Impact of the rob flood disaster in north pekalongan
Authors: Riyatmoko A , Sanjoto T B , Juhadi  
Published: November 2022

Abstract
The tidal flood that hit Pekalongan City had an impact on the surrounding areas. Pekalongan Utara sub-district is the sub-district that has had the worst impact when compared to other sub-districts. There are seven urban villages affected by the tidal flood disaster. This study aims to analyze the impact of the tidal flood disaster that occurred in North Pekalongan District. Data collection techniques using observation, in-depth interviews, and documentation. Data analysis using descriptive qualitative. The results of this study indicate that the impact of the tidal flood disaster that occurred in North Pekalongan District was both direct and indirect. The direct impact of the tidal floods that occurred included damage to parts of houses, furniture, school buildings, school furniture, vehicles, and the vulnerability of public health due to tidal flooding. Meanwhile, the indirect impact caused by the tidal flood disaster that occurred was disruption of the social and economic life of the community in North Pekalongan District.
Geochemistry characteristics of the hungayono geothermal area for the development of clean energy in gorontalo province
Authors: Tolodo D D , Manyoe I N , Arifin Y I 
Published: November 2022

Abstract
Geothermal energy has great potential to provide clean energy so that the Sustainable Development Goals (SDGs) can be achieved. The purpose of this study was to identify the geochemical characteristics of the geothermal fluid in the Hungayono area. Geothermal fluid sampling is performed at two points of manifestation which have the highest temperature. The cation and anion testing of geothermal fluid using Atomic Absorption Spectrophotometer (AAS) and isotope testing using the Picarro Water Isotope Analyzer. Data analysis using Giggenbach diagrams. Hot spring temperatures are 54 - 60°C. The deposits at the point of manifestation are iron oxide with neutral fluid pH. Based on the results of the analysis of cations, anions, and isotopes, the Hungayono geothermal fluid is a type of chloride fluid that has been mixed with meteoric water. Based on the geothermometer calculation, reservoir temperature is 232-234°C. Hungayono Geothermal is a type of system with moderate to high concentration.
The suitability of mangrove tourism in the district of cilamaya wetan, karawang regency, west java province
Authors: Kurniawansyah A , Tjiong G P , Nurul R 
Published: November 2022

Abstract
The study was conducted in the District of Cilamaya Wetan, Karawang Regency, West Java Province from November to December 2019. The purpose of this study was to analyze the suitability of mangrove tourism. Based on the results in the field, the mangrove ecosystem of the District of Cilamaya Wetan has an average thickness of 114.62 m, consisting of 4 types of mangroves namely Rizhophora stylosa, Rizhophora apiculata, Rizhophora muncronata, Avicennia alba, Bruguiera gymnorhiza, and Sonneratia with an average density of 19 tree/100 m2 based on 10x10 meter sample transect and plot method. While the biota is associated with this mangrove ecosystem, namely Gobiidae, Portunus pelagicus, Mycteria cinerea, and Solenoceridae. Based on the suitability assessment of mangrove tourism, this district has 2 classifications, which are appropriate and conditionally appropriate. The appropriate classification is found in Sukakerta Village, Muara Baru Village, and Muara Village, while the conditional classification is found in Rawagempol Kulon Village.
Environmental efforts through “lembur kaulinan lebaksiuh”
Authors: Nugraha D M , Hadianto D , Hadian V A , Budiyanti N 
Published: November 2022

Abstract
Environmental damage occurred in the Bandung area resulting from the development of settlements that are less concerned about preserving the environment. The environmental damage that occurred resulting in a flash flood disaster in 2018 that resulted in the area surrounding the Cicaheum suffered. To mitigate environmental damage the awareness of the various circles is committed to maintaining the environment. This research is to study and analyze the efforts undertaken by the people of Lebaksiuh Village, Ciburial Village, District Cimenyan, Bandung Regency in protecting the environment through the program “Lembur Kaulinan Lebaksiuh”. Approach in research conducted using qualitative approach and case study method by conducting an in-depth interview of manager Lembur Kaulinan Lebaksiuh. The results of the research obtained that Lembur Kaulinan Lebaksiuh has a program that gives awareness to the community to have the character of the environment by doing the planting of palm trees on the Cidurian River on the bank so that there is no flood in the rainy season and preserving “Seke Air” so that there is no shortage of clean water in the dry season. The conclusion of this research is that the program conducted by Lembur Kaulinan Lebaksiuh has shown efforts to protect the environment by giving awareness to the community to care about the environment. Lembur Kaulinan Lebaksiuh Program needs to be followed by the community or other villages to keep the environment together.
Transformation of public space utilization by online motorcycle taxi
Authors: Fauzia W , Setiadi H , Rizqihandari N 
Published: November 2022

Abstract
This study aims to see the transformation of the use of public space by online motorcycle taxi. The use of technology in the concept of online motorcycle taxi makes it different from earlier concept of conventional ojek. Therefore, online motorcycle taxi does not have a designated place to wait for service requests. It makes online motorcycle taxi to make use of pre-existing public spaces as their places to wait or seek for service requests. This case can be seen on one of the main roads in South Jakarta, named St. Prof. DR. Satrio, which is one of the roads included in the revitalization program by the DKI Jakarta Provincial Government to become a pedestrian public space. This research uses qualitative method with ethnographic approach which data collection process consisted of participatory observation and direct interviews with onsite online motorcycle taxi drivers. The results show the transformation in functional form, which was changed from a green open space as a road divider into pelican sidewalk and public recreation areas. However, the purpose of revitalization is not in line with real condition where the space is used on by certain community (online motorcycle taxi drivers) that do not have designated places.
Physical vulnerability analysis of cultural heritage for strong winds in the city of yogyakarta, indonesia
Authors: Christianawati A , Hizbaron D R 
Published: November 2022

Abstract
This study aimed to analyse which variable (s) had the most contribution to the vulnerability of strong winds in Yogyakarta. Strong winds are the second-largest disaster in Yogyakarta, Indonesia. The city has at least five cultural heritage regions, including Kotabaru, Kotagede, Malioboro, Pakualaman, and Kraton. It employed Spatial Multi-Criteria Evaluation (SMCE) to process 11 variables, i.e. age, height, and physical condition of the building, landmark, spatial design/architectural style, roads, regional effect, shape of the region, building density, also built-up land patterns. These ten variables processed by scoring and cluster sampling Meanwhile, the remaining variable, hazard, analysed using scoring. The results were two types of vulnerability scenarios. (1) The Equal Vulnerability Scenario (2) The Vulnerability Scenarios used research variables that were grouped into three levels of spatial patterns, namely, Spatial Pattern I (landmark, road, and the physical condition of the building), Spatial Pattern II (regional effect, building density, and hazard), and Spatial Pattern III (built-up land pattern, building age, building height, architectural style, and the shape of the region). All scenarios proved that CHR Kotagede was extremely vulnerable. This strong pattern determines hazard as the most contribution variable, since the similarities to Equal, Building Density, and Regional Effect.
Ecological design of Taman Merdeka as an alternative to the development of Depok city green open space
Authors: Afzelia PN , Gunawan A 
Published: November 2022

Abstract
Taman Merdeka, Depok City, is an urban park that has experienced degradation in terms of quality, both functionally and aesthetically. This declining condition causes less satisfactory use of this park, even though this park is a way for the government to provide an area that functions as a recreational area for urban citizens. The current condition of the park, with its original concept no longer visible, needs a touch of comprehensive design that can solve the problems that exist on the site. This study aims to ecologically design Taman Merdeka so that it meets the needs of park users and is environmentally friendly. The method used in this study is a descriptive method through field survey and interview. The schematic design is developed based on the traditional Depok Batik pattern that features the city's iconic fruit, that is star fruit and then transformed into elements and landscape spaces. The principles of ecological design are implemented through green infrastructure for water management, conservation of existing vegetation, upcycling center for waste management, and the use of environmentally friendly materials. The design is developed in detail in all areas including the welcome area, sports courts, playground, plaza, bioswales, stormwater wet pond, food court, upcycling center, sitting area, elevated walkway, amphitheater, lawn, and promenade.
Asymmetric dynamics of the orbital angular momentum of vector beam propagation in nonlocal nonlinear media with

-symmetric azimuthal potentials
Authors: Deng Yubin , Huang Kekai , Lin Jun , Sun Zhaoxu , Ye Weiyong , Huang Shihong , Zhang Wu , Zhang Bingzhi 
Published: November 2022

Abstract
We study the dynamics of vector beams (VBs) propagating in nonlocal nonlinear media with

-symmetric azimuthal potentials. It is found that there is an apparent clockwise/counterclockwise symmetry (similar to left/right symmetry) breaking for the sub-beam with the opposite value of orbital angular momentum (OAM) of the VB. This symmetry breaking leads to the obvious asymmetric evolution of OAM, which results in net OAM generation. We numerically confirm that this phenomenon is induced by the

-symmetric azimuthal potential.
Aluminum and alumina/MoS2/cellulose derivative composite: design and performance
Authors: Shi Shih-Chen , Pek Shia-Seng , Lin Yue-Feng 
Published: November 2022

Abstract
Nanoparticles were added to improve the tribological performance of the biopolymer-based composite films. Aluminum and alumina were used as additives. The matrix of the composite was MoS2/hydroxypropyl methylcellulose (HPMC). The ternary additive/MoS2/HPMC hybrid composites were successfully prepared via solvent evaporation. The surface morphology, thickness, microstructure, and wear scars were analyzed using scanning electron microscopy. X-ray diffraction was used to analyze the crystal structures of the nanoparticles in the composite films. Finally, a wear test was conducted to determine the tribology behavior and was discussed using the third-body theory. Because of the high surface-area-to-volume ratio of the additives, nanoparticles were exposed and densely distributed on the composite surface. Disclosed nanoparticles caused peaks and valleys and showed more significant undulations, prompting a highly rough surface. The addition of nanoparticles enhanced the load capacity of the composite films by 155%. In the meantime, nanoparticle additives significantly reduced the coefficient of friction by 50% and improved anti-wear performance by five times. The nanoparticles in the wear scar exhibited an excellent third-body mechanism during the wear process, coordinating the velocity accommodation mode between the two rubbing surfaces and the transfer load.
Using nanomaterials to enhance the additive manufacturing of polymeric resins
Authors: Crowley Ava G , Tran Thang Q , Green Micah J 
Published: November 2022

Abstract
Additive manufacturing (AM) technologies, also called 3D printing, have dramatically developed over the past decade to allow new capabilities in materials processing with printed resolution comparable to that of traditional manufacturing techniques. Sequential layer deposition can lead to the creation of complex parts with minimized material waste, high manufacturing throughput, and increased prototyping ability, while also meeting the demand for mid- and low-volume production. The AM of polymer nanocomposites is a growing area of research because nanomaterial additives can enhance the mechanical, electrical, and other properties for end-use applications. However, the use of nanomaterial inclusions can also enhance the AM processes themselves. Here, we discuss works where nanomaterials are employed as local heaters for fused deposition modeling, as viscosifiers for direct ink writing, and as photothermal sensitizers for selective laser sintering and vat polymerization. We also note the disconnect between the researched AM capabilities and current industrial manufacturing; nanomaterials can bridge the technological gap and lead to new common practices in industrial manufacturing spaces.
Machine learning approach for screening alloy surfaces for stability in catalytic reaction conditions
Authors: Sulley Gloria A , Hamm Jihun , Montemore Matthew M 
Published: November 2022

Abstract
A catalytic surface should be stable under reaction conditions to be effective. However, it takes significant effort to screen many surfaces for their stability, as this requires intensive quantum chemical calculations. To more efficiently estimate stability, we provide a general and data-efficient machine learning (ML) approach to accurately and efficiently predict the surface energies of metal alloy surfaces. Our ML approach introduces an element-centered fingerprint (ECFP) which was used as a vector representation for fitting models for predicting surface formation energies. The ECFP is significantly more accurate than several existing feature sets when applied to dilute alloy surfaces and is competitive with existing feature sets when applied to bulk alloy surfaces or gas-phase molecules. Models using the ECFP as input can be quite general, as we created models with good accuracy over a broad set of bimetallic surfaces including most d-block metals, even with relatively small datasets. For example, using the ECFP, we developed a kernel ridge regression ML model which is able to predict the surface energies of alloys of diverse metal combinations with a mean absolute error of 0.017 eV atom−1. Combining this model with an existing model for predicting adsorption energies, we estimated segregation trends of 596 single-atom alloys (SAAs)with and without CO adsorbed on these surfaces. As a simple test of the approach, we identify specific cases where CO does not induce segregation in these SAAs.
Development of large-scale electret fabrication system for triboelectric nanogenerator electrical output amplification
Authors: Jang Sunmin , Cho Sumin , Lee Donghan , Ra Yoonsang , Kam Dongik , Lee Jaehyun , Lee Gyuha , La Moonwoo , Choi Dongwhi 
Published: November 2022

Abstract
The triboelectric nanogenerator (TENG), which converts mechanical energy to electrical output, is garnering attention owing to their application in low-energy electronic devices as a power source. To utilize the TENG as a power source, amplifying the electrical output and enhancing energy conversion efficiency are necessary. As the TENG generates electrical output through contact electrification and electrostatic charge induction, the electrical output can be amplified by enhancing the two mechanisms through the enlargement of the TENG area and the adoption of the pre-charge injected film (electret). In this regard, the fabrication of the large-scale electret is significant for amplifying the electrical output of the TENG. In this study, a corona charging system is proposed for the fabrication of the large-scale electret with a uniform charge-distributed area. Corona charging injects O2 ions into a dielectric film with an electric field generated between the pin electrode and ground electrode (GE). Through the utilization of a multi-PE (MPE) and conveyor belt-shaped GE (CBsGE) in the corona charging system, the O2 molecules near the pins can be ionized simultaneously while the CBsGE is rotating. Thus, the O2 ions can be injected uniformly into a wide area. About a voltage of 400 V and current of 45 μA can be generated by applying the fabricated electret to the TENG. As several electrets with various sizes can be fabricated simultaneously, the TENG with high electrical output can be batch fabricated to enhance its practicality significantly.
Self-powered hybrid triboelectric–piezoelectric electronic skin based on P(VDF-TrFE) electrospun nanofibers for artificial sensory system
Authors: Cho Sumin , Jang Sunmin , Lee Donghan , Ra Yoonsang , Kam Dongik , Kim Jong Woo , Shin Dongjin , Seo Kyoung Duck , Choi Dongwhi 
Published: November 2022

Abstract
Piezoelectric sensors have been developed due to the self-powered sensing and flexibility and the promising potential applications in the electronic skin (e-skin) inspired by human skin. However, although the piezoelectric sensors have an excellent performance in detecting human movements, it is difficult to distinguish external mechanical stimuli such as tapping in a single structure, together. Here, we suggest a self-powered e-skin based on electrospun poly(vinylidene fluoride-trifluoroethylene), nanofiber hybrid triboelectric–piezoelectric sensor (E-HTPS), that can identify between human motions and external touch based on both triboelectric effect and piezoelectric effect. Triboelectric effect-based sensors have a good electrical output characteristic with various advantages of high-flexibility and simple working operation. Hence, the E-HTPS consists of two layers, triboelectric layer as a tactile sensor and piezoelectric layer as a human motion sensor. Therefore, we demonstrate that the E-HTPS can detect human movements and even finger touch with attached to the target body part. Consequently, the E-HTPS could provide an effective approach to designing the self-powered e-skin as an artificial sensory system for healthcare monitoring and soft robotics.