bluuebunny/crossref_metadata_2025_split huggingface dataset:
Research on automatic recognition algorithm of piano music based on convolution neural network
Authors: Wu Ran 
Published: June 2021

Abstract
Convolutional neural network is a typical deep neural network, which combines the advantages of deep learning and image processing, improving the accuracy of feature recognition and greatly reducing the calculation of neural network. Window function is a signal with finite width in time domain. In signal processing, the use of window function can reduce the leakage of spectrum. Combining the window function and convolution neural network, the effective input in the model can be increased, and the accuracy and speed can be improved. In this paper, the music score of piano music is processed by window function as the input image of convolutional neural network. Through the analysis of the results, it is found that the algorithm has a 25.8% increase in rate compared with the traditional recognition method in rate, and the average value of F value reaches 89.24% in the accuracy test. The test results show that the piano music recognition rate of the algorithm has been greatly improved, and good results have been achieved in accuracy.
Nonlinearity analysis for cosmological inflation with minimal and non-minimal coupling of scalar field from horndeski theory for special cases: de sitter expansion and decaying scalar field
Authors: Hikmawan G , Suroso A , Zen F P 
Published: June 2021

Abstract
In this work, we consider De Sitter expansion and decaying scalar field in cosmological model with combination of minimal and non-minimal coupling of scalar field from Horndeski theory. As a continuity of the previous work, after the background solution and condition obtained, we continue the analysis to the nonlinearity aspect of perturbations via the spectral index of the perturbations. Spectral index of the perturbations and tensor to-scalar ratio of these special cases give sign of inflation model.
The Effect of DC Voltage on Solidification of Tetrabutyl-Ammonium Bromide (TBAB) Aqueous Solution
Authors: Rahman A , Swandi A , Anggraini R , Putri R A , Kurnia D , Sutjahja I M 
Published: June 2021

Abstract
This study aimed to investigate the nucleation process of 23 wt% tetra-n-butyl ammonium bromide (TBAB) aqueous solution due to DC voltage. TBAB hydrate is an example of a thermal energy storage system with a phase change temperature of around 0–12 °C. The commonly sold copper electrodes are inserted into the sample to supply the voltage continuously. The diameter of the electrodes was 1 mm, and the gap was approximately 0.5 mm. The applied voltage varied as the experimental parameter is in the range of 0 to 30 V. Two repetitive freezing-thawing experiments are performed to ensure data repeatability. The experimental results showed that the TBAB hydrate would not form until a minimum value of 20 V of DC voltage was applied. The increase of the voltage used led to higher solidification temperature and reduction of the supercooling degree.
Cosmic ray muons detection in COMET experiment group at KEK summer student program
Authors: Prihadi H L , Hikmawan G , Zen F P 
Published: June 2021

Abstract
In this article, we present some works on the detector part of COMET (COherent Muon to Electron Transition) experiment. The detector system of the COMET experiment uses scintillating materials and photodetectors in general. We apply high voltage input and measure the Gain of a photodetector named MPPC (Multi Pixel Photon Counter) and it is linearly dependent with the high voltage input. After that, we attach an LYSO (Lutetium-Yttrium Oxyorthosillicate) crystal as a scintillating material to the MPPC and then measure the natural radioactive process at around 597 keV energy spectrum and also detect the presence of cosmic-ray muons at around 28.4 MeV energy spectrum.
Local Existence of Classical Solutions to Scalar Field Equation on Spatially Compact Spacetime as a Background
Authors: Wijayanto Mirda P. , Akbar Fiki T. , Gunara Bobby E. 
Published: June 2021

Abstract

The goal of this paper is to prove the wellposedness of scalar field equation on spatially compact spacetime of Riemannian manifold. We construct the equation of motion from the Lagrangian of scalar field with non-minimal coupling, where the coupling interaction of the scalar field ϕ is proportional to the scalar curvature of the spacetime. The equation of motion has the form like non-linear wave equation. The next step is to prove local existence of solutions. We have show that both the k th linear energy and energy norm are bounded for the finite time with the initial data in H k+1 × H k. Finally, we prove the uniqueness and smoothness properties of the solution.
Rotating and twisting charged black holes with cloud of strings and quintessence
Authors: Sakti M F A R , Prihadi H L , Suroso A , Zen F P 
Published: June 2021

Abstract
We find a charged spherically symmetric black hole solution with the existence of a cloud of strings and quintessential matter. Then we apply the Demiański-Newman-Janis algorithm to generate the rotating and twisting counterpart. The thermodynamic properties of this black hole solution are further investigated.
Simulation of microtube irradiation on the beam tubes of GA Siwabessy reactor for in-vitro boron neutron capture therapy
Authors: Rasito  , Su’ud Z , Permana S 
Published: June 2021

Abstract
The BNCT in-vitro test using a microtube irradiated in the neutron beam of the RSG-GAS beam tubes has been simulated using PHITS code. The simulation was performed by modeling a microtube containing boron solution which was placed 5 cm in front of the beam tubes. Inside the beam tube was installed a beam shaping assembly (BSA) using 80 cm of MgF 2 as a filter to reduce fast neutron and gamma fluences. Microtube containing 1.5 mL of boron solution with boron enriched 10B of 90%. The microtube dose i.e alpha dose, 7Li dose, proton dose, and gamma dose were calculated for boron concentration of 1 ppm. The simulation of microtube containing 1 ppm boron solution shown that irradiated in the BSA-S5 neutron beam can produce 20 Gy dose in the shortest irradiation time of 2.5 hours.
Multichannel Seismic Reflection Data Processing: Multiple Attenuation of Line 250 at the Coast of Southern California Using Hyperbolic Radon Transform
Authors: Putra A S , Sismanto N , Wardhani D P , Srigutomo W 
Published: June 2021

Abstract
Multichannel seismic reflection data processing of line 250 at the Coast of Southern California has been done by using Echos®. The purpose of this research is to separate multiple reflections from the primary reflection. Multiple reflections yield dramatic effect especially on marine seismic survey. Multiple reflections in marine seismic data is the noise caused by waves that trapped in a layer of sea water or rock layers. One of geophysics exploration problem is removing multiple reflections from primary reflection. Multiple reflections often destructively interfere with the primary reflection making interpretation difficult, so it’s needed to get seismic section free from multiple reflections. There are some methods to attenuate the multiple reflections, one of them is Hyperbolic Radon transform. Hyperbolic Radon transform method works by transforming the data from time-offset domain into the Radon domain. Primary reflection and multiple reflections can be separated into Radon domain. In the end of this research, seismic section before and after multiple attenuation using hyperbolic Radon transform were compared. Based on the result of processing, it can be concluded that hyperbolic Radon transform is effective to attenuate multiple reflections at 0,24-l,25s TWT. But, it can eliminate some of data and makes seismic section seen unclear.
Experimental Study of Thermal Behavior of a Single-phase Natural Circulation Loop with Vertical Heater and Cooler
Authors: Hariyanto D , Permana S 
Published: June 2021

AbstractThe natural circulation systems have been widely applied to various technologies, for example, safety systems in molten salt reactors. Hence the instability of the natural circulation system became an exciting topic to study. This study aimed to find out the effect of horizontal width variation on the thermal behavior of a single-phase natural circulation loop (NCL) with vertical heater and vertical cooler. Three loops with horizontal widths of 50 cm, 100 cm, and 150 cm, respectively, were designed for experimental studies. Meanwhile, the vertical height of all three loops was 100 cm. The cooler was installed vertically on the upper arm of the loop to cool the fluid. The heater was installed vertically on the forearm on the other side of the loop to heat the fluid. K-type thermocouples integrated with the data acquisition system were used to measure the temperature distribution in several zones of the loop directly. The conclusion obtained in this study was a single-phase natural circulation loop with vertical heater and vertical cooler did not indicate a reversal of the direction of heat transfer at each operating power and geometry configuration. This study is expected to be one of the references to the design of a single-phase natural circulation loop as an advanced nuclear reactor passive safety system.
Safety Nanocosmetics: Triblock Copolymer Nanostructured Lipid Carriers and application on Hair Cosmetics
Authors: Dini A X P , Costa A F , Fávaro W J , Durán N 
Published: June 2021

Abstract
Nanotechnology has been extensively studied for application in the pharmaceutical area. Nanostructured lipid carriers (NLC) are safe lipid nanoparticles that improve the performance of cosmetic products due to their high superficial area. The NLC were produced with the solid lipids, cupuaçu and lanolin, and the liquid lipid, buriti. The production method was by high pressure homogenizer, with three cycles at 600 bar. The produced nanoparticles presented diameters around 200 nanometers and a low polydispersity index. The images obtained by electron cryo-transmission electron microscopy (TEM) showed an NLC solution with nanoparticles with circular projection structures with dimensions between 15 nm to 140 nm, without signs of aggregation between these structures. The Scanning Electron Microscopy (SEM) analysis showed visible changes in the capillary structure after treatment with the conditioner containing NLC versus the non-treated wicks. The outer cuticle are seal and have a uniform appearance and brightness to the naked eye after application of conditioner containing NLC. The color seems not to vary when comparing the hair treated with the conditioner base (without NLC) and the control. Otherwise, after the treatment with NLC-containing conditioner it was observed an improvement on the average parameter. Then, our results indicated a significant improvement in the brightness caused by the nanoparticle action, as well as a contribution to the retention of moisture in the capillaries, reduction of hair wicks frizz and for greater brightness.
Investigation of indoor aerosols emitted from electrical appliances
Authors: Koched A , Schmitt S H , Tritscher T , Krinke T , Bischof O F 
Published: June 2021

Abstract
Air quality inside a residential apartment has been investigated by measuring the PM emission generated from cooking and ironing using electrical devices. The samples were collected in the kitchen, the living room and the bedroom. The total number concentration, the size distributions and mass concentration PM0.1, PM2.5 and PM10 were measured using portable and compact instruments; a NanoScan SMPS 3910, an Optical Particle Sizer 3330 and a Condensation Particle Counter 3007. The results were analyzed and compared to the WHO guidelines for ambient air quality. In the absence of a standardized method for assessing indoor air quality, a procedure is suggested for a better consideration of the physical properties of the particles. The results obtained showed that an electrical oven with visible heating electrical resistances inside is much more emissive compared to a cooktop plate or a steam-iron were the heating resistances are protected in a steel housing. The emission from the kitchen spreads all over the apartment and the concentration levels remain high for a long time. The dissemination of particles is accompanied by a growth in their size. Ventilating the areas, for example by using a hood or opening a window, seems an efficient measure to reduce the high concentration of particles emitted by residential activities.
Grouping of exposure and risk for processing of nanocomposites
Authors: Möhlmann C , Schumacher C , Gasse B , Plitzko S , Broßell D 
Published: June 2021

Abstract
Several approaches had been performed to group similar properties of nanomaterials for the purpose of risk assessment. In addition to material and release properties, exposure during selected machining processes at workplaces was investigated. During exposure, transport and transformation processes between source and recipient also affect the materials. Ways of structuring the determination of risk are proposed for a risk assessment in activities involving nanomaterials in the workplace. The exposure during sanding of nanocomposites was found to depend on the matrix material rather than on the nano-additive.
Safe-by-design strategies applied to scaffold hybrid manufacturing
Authors: López De Ipiña Jesús M. , Vaquero Celina , Egizabal Ainhoa , Patelli Alessandro , Moroni Lorenzo 
Published: June 2021

AbstractThe EU-project FAST (GA 685825) has developed a 3D printer machine prototype for the manufacture of bone implants (scaffolds), by merging masterbatches of biodegradable polymer poly(ethylene oxide)terephthalate/poly(butylene terephthalate) [PEOT/PBT] doped with nanofillers [reduced graphene oxide (rGO), hydroxyapatite (HA) and magnesium aluminium hydroxide ciprofloxacin hydrotalcite (LDH-CFX)], and atmospheric plasma technology. This paper focus on the safe design strategies identified by FAST to address the risk to health resulting from the potential airborne emission of nano-objects and their aggregates and agglomerates (NOAAs) by the 3D printer prototype, which might result in occupational exposures by inhalation. The work also includes measurements of airborne emissions and occupational exposures carried out during the verification stage of the prototype design. Nanofillers particles (rGO, n-HA, LDH-CFX) were not observed, neither at source nor in the working area, suggesting no release of free nanofillers to the air one they have been embedded in the polymer masterbatch. Additionally, the exposure in the workplace was far below the selected Occupational Exposure Levels (OELs), for total particle number concentration (PNC), dust, elemental carbon (EC) and volatile organic compounds (VOCs). The results showed that, when working with the current prototype in normal operation (for its intended use) and with controls enabled [enclosure with the doors closed and Local Exhaust Ventilation (LEV) activated], the emission from the machine and the worker’s exposure to NOAAs are well controlled.
The OASIS-Sustainable Nanomanufacturing Framework (OASIS-SNF): a new simplified approach to implement sustainable production in nanomanufacturing pilot lines and evaluate its sustainable manufacturing performance
Authors: López De Ipiña Jesús M. , Clavaguera Simon , Steck Josephine , Escabasse Jean-Yves , Hernan Angel , Insunza Mario , Gomendiourrutia Paul , Machicado Fernando , Florez Sonia 
Published: June 2021

Abstract
The pilot production ecosystem deployed by the EU-project OASIS consists of 12 pilot lines (PLs) for the manufacture of nanomaterials, nano-intermediates and nano-enabled products, intended for the final production of lightweight multifunctional products, based on aluminium and polymer composites, for construction, energy, automotive and aeronautics. OASIS intends to deploy this nanomanufacturing ecosystem under a common umbrella of sustainable production, to ensure a future competitive, quality, safe and environmentally friendly production of nanoproducts, in compliance with the applicable regulation. This paper introduces the new OASIS-Sustainable Nanomanufaturing Framework (OASIS-SNF) and some first results obtained during the initial stages of deployment in the PLs (diagnostic and planning stages). The adoption of the OASIS-SNF among the OASIS PLs is intended to enable them to sustainable manufacturing their nanoproducts, properly manage their sustainability priorities, and continually improve their sustainability performance (management and results).
Nano-Immunotherapy Accelerates Recovery of Patient with Covid-19: Clinical Analysis and Metabolomics
Authors: Alonso J C C , Delafiori J , Mariano V M , Dos Santos L A , Busanello E N B , Rocha A R , Durán N , Catharino R R , Fávaro W J 
Published: June 2021

AbstractIn a severe COVID-19 patient case (78-year old male) that was under active immunotherapy for high-grade non-muscle invasive bladder cancer was followed. He received a shorter hospitalization period, as hypothesis it was suggested that active immunotherapy played a crucial role together to anti-inflammatory and antiviral treatment in precluding the evolution of pulmonary symptoms to a poor prognosis.
Robust Amazon precipitation projections in climate models that capture realistic land–atmosphere interactions
Authors: Baker J C A , Garcia-Carreras L , Buermann W , Castilho de Souza D , Marsham J H , Kubota P Y , Gloor M , Coelho C A S , Spracklen D V 
Published: June 2021

Abstract
Land–atmosphere interactions have an important influence on Amazon precipitation (P), but evaluation of these processes in climate models has so far been limited. We analysed relationships between Amazon P and evapotranspiration (ET) in the 5th Coupled Model Intercomparison Project models to evaluate controls on surface moisture fluxes and assess the credibility of regional P projections. We found that only 13 out of 38 models captured an energy limitation on Amazon ET, in agreement with observations, while 20 models instead showed Amazon ET is limited by water availability. Models that misrepresented controls on ET over the historical period projected both large increases and decreases in Amazon P by 2100, likely amplified by unrealistic land–atmosphere interactions. In contrast, large future changes in annual and seasonal-scale Amazon P were suppressed in models that simulated realistic controls on ET, due to modulating land–atmosphere interactions. By discounting projections from models that simulated unrealistic ET controls, our analysis halved uncertainty in basin-wide future P change. The ensemble mean of plausible models showed a robust drying signal over the eastern Amazon and in the dry season, and P increases in the west. Finally, we showed that factors controlling Amazon ET evolve over time in realistic models, reducing climate stability and leaving the region vulnerable to further change.
Intervention levers for increasing social acceptance of conservation measures on private land: a systematic literature review and comprehensive typology
Authors: Tanguay Louis , Bissonnette Jean-François , Turgeon Katrine , Calmé Sophie 
Published: June 2021

Abstract
Private lands are increasingly targeted for ecological restoration and conservation initiatives in high-income countries. However, the fragmented nature of private land tenure, the large number of landowners and their heterogeneous profiles can pose significant challenges for conservation initiatives. This can lead to a range in landowners’ attitudes toward conservation initiatives, with some initiatives being received with resistance, and others with consent and participation. Most research dealing with social outcomes of conservation or restoration initiatives on private lands addresses regionally specific case studies, but few studies have attempted to derive general trends. To fill this gap, we performed a systematic literature review of conservation measures on private lands to develop a comprehensive typology of factors influencing the acceptance of conservation initiatives on private lands. Our results show that conservation agents (typically government agencies or NGOs), despite their limited power over individual factors of private landowners, can seek to encourage both the adoption and perceptions of conservation initiatives on private land through improving institutional interactions. We propose six recommendations to help support and design conservation programs on private lands and to identify intervention levers that may be acted upon to improve the social acceptance of such conservation initiatives.
Commercial herbicides trial against Alocasia sp. (wild yam) at oil palm plantation, Borneo, Malaysia
Authors: Abas M A , Karim M F A , Fitriani N , Razikin M Z M , Hamzah Z 
Published: June 2021

Abstract
Weeds in oil palm plantations include any plant or vegetation that in any way interferes with the production of palms, resulting in a reduction in yield or quality. Alocasia sp. (wild yam) is a common weed at oil palm plantation in Borneo, Malaysia. This study was conducted to evaluate commercial herbicides’ effectiveness (amine, ally, glyphosate, and paraquat) against Alocasia sarawakensis, Alocasia robusta, and A. macrorrhizos. Cocktail herbicide showed faster wilting, scorching and rotten and least/late regeneration within 30 days of monitoring. Combination of two chemicals reacted better and potentially long-lasting, and further observation can provide info on the difference between (systemic+contact), (contact+contact) and (systemic+systemic). Cost-effectiveness analysis showed herbicides cocktails Treatment 9 (amine + ally + surfactant), Treatment 11 (amine + paraquat + surfactant), and Treatment 12 (ally + paraquat + surfactant) were the most cost-effective (±RM0.58 cent/16 L) to control Alocasia sp. This study’s finding would give an alternative solution for oil palm plantation to control weed, especially Alocasia sp.
Research on the development law of freezing temperature field based on different refrigerant temperature
Authors: Wang Yue , Cui Bingbing , Fu Cai , Gao Wei , Jiang Haoliang 
Published: June 2021

Abstract
In order to obtain the evolution law of freezing temperature field at different refrigerant temperatures, the mathematical model of freezing temperature field with phase transition in single tube was established, and the model test and numerical analysis were used to study it. The accuracy of numerical analysis is verified by comparing the data obtained by the two methods. Based on the numerical model, the development law of freezing temperature field under different refrigerant temperatures is analyzed by single factor analysis. The research results show that:(1) in silty clay formation, the development speed of frozen wall is about 26.67 mm/d under the condition of -27°C saline water freezing; (2) The refrigerant temperature has a great influence on the early development speed of the freezing wall. When the refrigerant temperature is between-50°C and-90°C, the time required to form a 0.8m freezing wall is advanced by 4 days for every 20°C decrease in refrigerant temperature. The research results provide reference for related practical projects.
Research on the Influence of Luffing Radius on Stress of Combinatorial Boom Portal Slewing Crane on Detected Data Analysis
Authors: Wen Haobai 
Published: June 2021

Abstract
Luffing radius is the main parameter of combinatorial boom portal slewing crane, which affects the stress distribution level of the whole. Aiming at different types of cranes with luffing radius, the high stress measurement points are determined, and the relationship between the overall stress level and the luffing radius is obtained. The stress characteristics of cranes with different types of luffing radius are further summarized.