bluuebunny/crossref_metadata_2025_split huggingface dataset:
Spaniards articulate faster than Mexicans
Authors: Santiago Fabian , Mairano Paolo 
Published: July 2022

Abstract
We analyse articulation rate and speech rate, number and duration of pauses for 22 speakers of two regional
varieties of Spanish (Madrilenian vs Mexican) in three different tasks (reading, picture description and interview). Our results
show that speakers from Madrid have higher articulation rate and speech rate than speakers from Mexico, but that such differences
are mainly observed in spontaneous speech (picture description). Instead, the number and duration of pauses were not significantly
affected by the origin of speakers. Some methodological issues are discussed in order to make legitimate inferences from this
exploratory study.
Molecular dynamics study of hydrogen isotopes at the Be/BeO interface
Authors: Hodille E A , Byggmästar J , Ferro Y , Nordlund K 
Published: July 2022

Abstract
Molecular dynamics simulations are used to investigate the behaviour of D atoms at two interfaces between beryllium (Be) and beryllium oxide (BeO). After relaxation of the simulation cell, there are (a) localised defects at the interface and (b) a hexagonal misfit dislocation network creating a succession of compressed and expanded area from each side of the interface. The simulations between 750 K and 1500 K for tens to hundreds of nanoseconds show that both interfaces act as trapping sites for D atoms. The simulations also show that D atoms tend to migrate in the material where the hydrogen isotope solubility is the highest as predicted by thermodynamics. However, the simulations also shows that there are additional kinetic barriers (D trapping sites, D2 formation/dissociation in BeO) that slow down the path to equilibrium. These additional kinetic barriers may influence the fuel retention and permeation in Be materials.
A highly tunable photoelectric response of graphene field-effect transistor with lateral P–N junction in channel
Authors: Zhang Yantao , Wang Zhong , Zhang Guohe , Wang Xiaoli , Han Chuanyu , Li Xin , Liu Weihua 
Published: July 2022

Abstract
This paper reports a highly tunable photoelectric response of graphene field-effect transistor (GFET) with lateral P–N junction in channel. The poly(sulfobetaine methacrylate) (PSBMA) provides strong N-type doping on graphene due to the dipole moment of pendent groups after ultraviolet annealing in high vacuum. A lateral P–N junction is introduced into the channel of the GFET by partially covering the graphene channel with PSBMA. With such P–N junction in the channel, the GFET exhibits a highly tunable photoelectric response over a wide range of exciting photon wavelength. With a lateral P–N junction in the channel, the polarity of photocurrent (I
ph) of the GFET switches three times as the back-gate voltage (V
BG) scan over two Dirac-point voltages. The underlying physical mechanism of photoelectric response is attributed to photovoltaic and photo-induced bolometric effect, which compete to dominating I
ph at various V
BG. This provides a possible strategy for designing new phototransistors or optoelectronic device in the future.
Measures on a Foucault’s pendulum for schools
Authors: Boccherini Benedetta , Straulino Samuele 
Published: July 2022

Abstract
We present some measures with the Foucault’s pendulum located in the building housing the Physics and Astronomy Department of our University. We shot a movie of the pendulum motion over 1 hour, whose frames have been later analysed to extract information about the trajectory. Thanks to this method, the rotation of the oscillation plane has been reconstructed with great accuracy. The educational value of this experiment is pointed out, which is also suitable for secondary school’s students.
Potential alpha particle detection with thin poly (ether sulfone) substrates
Authors: Nakamura Hidehito , Mori Kazuhiro , Shirakawa Yoshiyuki 
Published: July 2022

Abstract
Plastics without fluorescent-molecule doping have attracted increasing attention as radiation detection components in measurement systems to ensure safe nuclear reactors and radiation facilities. A promising candidate is poly (ether sulfone) (PES), which is resistant to environmental stress. Here, we show that transparent PES responds rapidly to alpha particles despite its amber colouration. Specifically, 1- and 5 mm-thick PES samples were exposed to an 241Am radioactive source, and the induced PES fluorescence was acquired with a photodetector. The overall system responses were comparable to the intrinsic detector response. The averaged time profiles of the acquired fluorescence pulses for each sample exhibited leading edges that exponentially increased with rise times of 3.3 ± 0.1 ns. The falling tails exponentially decreased with decay times of 12.4 ± 0.1 ns and 12.1 ± 0.3 ns. The maximum intensity from the 1 mm-thick sample was approximately 2.4 times greater than that from the 5 mm-thick sample. This knowledge will lead to future PES applications in radiation measurements.
Unsupervised Martian Dust Storm Removal via Disentangled Representation Learning
Authors: Zhao Dong , Li Jia , Li Hongyu , Xu Long 
Published: July 2022

Abstract
Mars exploration has become a hot spot in recent years and is still advancing rapidly. However, Mars has massive dust storms that may cover many areas of the planet and last for weeks or even months. The local/global dust storms are so influential that they can significantly reduce visibility, and thereby the images captured by the cameras on the Mars rover are degraded severely. This work presents an unsupervised Martian dust storm removal network via disentangled representation learning (DRL). The core idea of the DRL framework is to use the content encoder and dust storm encoder to disentangle the degraded images into content features (on domain-invariant space) and dust storm features (on domain-specific space). The dust storm features carry the full dust storm-relevant prior knowledge from the dust storm images. The “cleaned” content features can be effectively decoded to generate more natural, faithful, clear images. The primary advantages of this framework are twofold. First, it is among the first to perform unsupervised training in Martian dust storm removal with a single image, avoiding the synthetic data requirements. Second, the model can implicitly learn the dust storm-relevant prior knowledge from the real-world dust storm data sets, avoiding the design of the complicated handcrafted priors. Extensive experiments demonstrate the DRL framework’s effectiveness and show the promising performance of our network for Martian dust storm removal.
(Ca,K)(Zn,Mn)2As2: Ferromagnetic semiconductor induced by decoupled charge and spin doping in CaZn2As2
Authors: Dong Jinou , Zhao Xueqin , Fu Licheng , Gu Yilun , Zhang Rufei , Yang Qiaolin , Xie Lingfeng , Ning Fanlong 
Published: July 2022

Abstract
We have successfully synthesized a novel diluted magnetic semiconductor (Ca1−2x
K2x
)(Zn1−

x
Mn
x
)2As2 with decoupled charge and spin doping. The substitutions of (Ca2+, K+) and (Zn2+, Mn2+) in the parent compound CaZn2As2 (space group P

m1 (No. 164)) introduce carriers and magnetic moments, respectively. Doping only Mn into CaZn2As2 does not induce any type of long range magnetic ordering. The ferromagnetic ordering arise can only when K+ and Mn2+ are simultaneously doped. The resulted maximum Curie temperature reaches ~7 K, and the corresponding coercive field is ~60 Oe. The transport measurements confirm that samples with K and Mn co-doping still behave like a semiconductor.
Disentanglement and a nonlinear Schrödinger equation
Authors: Buks Eyal 
Published: July 2022

Abstract
We explore a nonlinear term that can be added to the Schrödinger equation without violating unitarity of the time evolution. We find that the added term suppresses entanglement, without affecting the evolution of any product state. The dynamics generated by the modified Schrödinger equation is explored for the case of a two-spin 1/2 system.
Dynamical quantum phase transition in periodic quantum Ising chains
Authors: Cao Kaiyuan , Zhong Ming , Tong Peiqing 
Published: July 2022

Abstract
The dynamical quantum phase transitions (DQPTs) after a sudden quench in periodic quantum Ising chains (QICs) are studied. We obtain the formulas of the Loschmidt echo and the Fisher zeros of the Loschmidt amplitude in the periodic QIC. It is found that for the quench across the quantum phase transitions (QPTs), the periodic QICs have richer DQPTs than that in the homogeneous QIC, and the number of critical times of the DQPTs are dependent on the specifical parameter of the pre- and post-quench Hamiltonian. For instance, in the period-two QIC, there is one critical time for the quench from the FM phase to the PM phase, and three critical times for the quench from the PM phase to the FM phase. In the period-three QIC, there may have three or four critical times for the quench from FM phase to the PM phase, but may have two or three critical times for the quench from PM to the FM phase. The reason is that the periodic QICs have multiple quasiparticle excitation spectra, and the Fisher zeros of the periodic systems consist of several separated branches, which is different from that in the homogeneous QIC. For different quenches across the QPTs, different branches will intersect with the imaginary axis, which correspond to different critical times. Our conclusion also provides insight in the property of the DQPT in the inhomogeneous systems.
Utilization of Altimetry Satellites Microwave Radiometer for Atmospheric Observation over Indonesia
Authors: Nurzaman Fathin , Wijaya Dudy D. , Tanuwijaya Zamzam A. J. , Kuntjoro Wedyanto 
Published: July 2022

Abstract
Altimetry satellites have an on-board microwave radiometer whose original function is to measure the Tropospheric Wet Delay (TWD) for their main sea level measurement using radar altimeter. The TWD, as it reflects the amount of water vapor in the atmosphere, could be used to derive the Precipitable Water Vapor (PWV) which would be a good parameter to study the atmosphere variability, especially in Indonesia where rainfall is the main variable of its climate. Studies on altimetry-derived PWV are conducted, which include: analyzing their correlation with rainfall observation dataset, and assessing how well they could capture some key atmospheric phenomena in Indonesia. The results show that there are fairly high correlation between the altimetry-derived PWV and the rainfall data in monthly-scale with 0.63 Pearson correlation coefficient. Moreover, they could very well capture some key phenomena in Indonesia such as the monsoon and El Niño Southern Oscillation (ENSO) variation. Thus, a new way of utilizing altimetry satellite data is introduced in this paper: to observe the atmosphere using its water vapor data derived from the microwave radiometer. This open the possibility of utilizing altimetry satellites for both oceanographic and meteorological studies as it could measures both oceanic and atmospheric parameter, with its radar altimeter and microwave radiometer, respectively.
Multivariate statistical analysis for sedimentary characteristics in an estuarine environment of the east flood canal river, Semarang
Authors: Marantika Y , Nugroho S H , Kurniasih A , Putra P S , Lestari  , Wibowo S P A , Kaisupy M T , Amar  , Jakah  
Published: July 2022

Abstract
The East Flood Canal River stretches across the eastern part of Semarang, an area that is densely populated with residential and industrial areas. There are many human and industrial activities around this watershed, including the textile industry, food factories, and fish auction sites. Therefore, this river becomes an interesting research object to examine the influence of industrial activities around the river on the characteristics of the sediment. This research was conducted by examining sediment core samples from the estuary of the East Flood Canal. The research aims to reveal the relationship between the characteristics and distribution of sediments and geochemical trace elements. A total of 31 samples of sediment core slices with an interval of 1 cm were analyzed. The granulometric analysis was conducted by Mastersizer 2000, to determine the grain size parameters that were used as the basis for the clustering. Geochemical analysis was conducted by the XRF (X-Ray Fluorescence) to determine the trace elements concentration. The study is interpreted using compositional data analysis associated with a grain size trend analysis (GSTA) and cluster analysis (CA). The GSTA value showed generally dominated by medium to very fine silt. The cluster showed that four lithofacies zones have different sedimentary characteristics. The distribution of the characteristics of the large grain size of the seafloor sediment in the East Flood Canal indicates that as the deposition is farther from the river mouth, the poorer it’s sorting. It was recorded that, at a depth of 19 to 27 cm from the surface there was an increase in fine to very fine sand accompanied by an increase in the Fe and Mn which indicated that there was a supply of sediment that occurred from land caused by human activities and flood events.
The Spatial and Temporal Impacts of Mixed Layer Depth (MLD) variations in West Sumatera Coastal Area
Authors: Utari Putri Adia , Saputra Okta Fajar , Lestiana Hilda 
Published: July 2022

Abstract
This paper investigates sea surface height to geoid (SSHG) and mixed layer depth (MLD) variations in the West Sumatera Coastal Area dominated Indian Ocean Dipole (IOD) evolutions using the data of MLD and (SSHG) from 2004 to 2017. The MLD variations in West Sumatera Coastal Area are explicitly investigated through spatial and temporal variations Empirical Orthogonal Functions (EOF). In the previous research, MLD variations in these extensive ocean-atmospheric circulations mainly focused on seasonal variations. The first results of EOF mode indicate 12% of the variability and show MLD variations in West Sumatera Coastal area during boreal fall (September – November). This result indicates that seasonal variation of MLD is slightly weak to the IOD event caused by ENSO signals from atmospheric teleconnection. On the other situation, the seasonal variations of SSHG is tightly related to the Indian Ocean Dipole (IOD) evolutions. The EOF results of SSHG shows 30% variabilities and is stronger than the MLD. The weak (dominant) pattern of these MLD and SSHG variations affects a shoaling layer over the west Sumatra coastal area associated with the negative Indian Ocean during 2010. We suggest that this MLD and SSHG product could be used as a reference for future studies and predict fish productivity.
Seismic Hazard Potential in Yogyakarta Based on HVSR Curve Estimation
Authors: Zega B.N. , Zulfakriza Z. , Rosalia S. , Puspito N.T. 
Published: July 2022

Abstract
In 2006, the Special Region of Yogyakarta was shaken by a destructive earthquake. The United States Geological Survey (USGS) recorded that the earthquake had a magnitude of 6.3 Mw at a depth of 12.5 km below the surface that was triggered by strike slip fault activity. The severe damage occurred in Bantul district and Klaten district, where the Klaten area location were far from the earthquake epicenter. This proves that the magnitude and the earthquake source distance are not the only parameters for seismic hazard potential, but rather the presence of local site effects and building conditions. The present study aims to determine the characteristics of the soil and estimate the seismic hazard potential by using HVSR method. Horizontal to Vertical Spectral Ratio (HVSR) is one method that can be used to obtain the subsurface information from single station measurements. Furthermore, the inversion of Rayleigh wave ellipticity curve is used to obtain 1-D of shear wave velocity (Vs). The parameters from HVSR calculation and Rayleigh wave inversion were mapped to understand the subsurface structure beneath the Yogyakarta area. Based on the soil classification to Vs, Yogyakarta area is categorized to SD (Stiff soil/soft soil) and SC (Very dense soil and soft rock). The results of the mapping analysis indicated that Bantul district is an area with the highest potential of seismic hazard.
The Projections of Climate Change using Conformal Cubic Atmospheric Model (CCAM) in Bali - Indonesia
Authors: Toersilowati L , Siswanto B , Maryadi E , Susanti I , Suhermat M , Witono A , Sipayung S B , Rahayu S A , ‘Adany F , Aminuddin J , Lubis R F 
Published: July 2022

Abstract
Research on climate change was conducted in Bali, Indonesia, using the Conformal Cubic Atmospheric Model (CCAM), which works with the Representative Concentration Pathway (RCP) 4.5. The history data means average data from 1971 to 2000, climate projections with RCP4.5 scenario means average data from 2040 to 2069, and anomaly (climate change) is RCP4.5 minus history. The results represent the history of temperature between 22.5-27.5 0C and the projection between 25.5-29.5 0C. Temperature anomalies can be observed in much of northern Bali, which has increased from about 1.6 to 2.9 0C. There is a trend towards reduced (drier) humidity in most parts of Bali, particularly in the northern part of Bali. In contrast, a small amount in the south increases the (wetter) humidity. The comfort index of the Bali region in history is still relatively comfortable (20-26 0C). The projection condition RCP 4.5, there is no comfortable area with an index of more than 26 0C (hot and dry).
Impact of natural conditions and anthropogenic activities on groundwater quality in Puntang volcanic area, West Java, Indonesia.
Authors: Maria R. , Iskandarsyah T.Y.W.M , Suganda B.R. , Rusydi A.F. , Hendarmawan Hendarmawan 
Published: July 2022

Abstract
The Puntang area in the southern mountains of West Java has potential water resources that are used to fulfill the community's raw water. The rapid development of the region and tourism will affect the quality of groundwater. This research was conducted on the slopes of Mount Puntang with the aim of analyzing natural and anthropogenic conditions on groundwater quality. Measurements and groundwater samples are taken from 5 springs, 10 dug wells and 8 drilling wells. The research method begins with a literature study followed by data collection in the field and laboratory analysis. Data analysis used statistical analysis and hydrogeochemical spatial analysis. Hydrogeochemical analysis using Piper diagrams. Based on the analysis results, it is known that the groundwater facies are CaCl, CaMgCl CaHCO3, and NaHCO3. The CaCl facies, enrichment of Cl- is caused by contamination of volcanic domain. The CaMgCl facies has enrichment of Mg2+ cations in the process of groundwater and rock water interactions. The high Cl- value in the proximal area is influenced by volcanic domain, while the Cl- value in the medial and distal areas may be influenced by anthropogenic. The CaHCO3 facies is influenced by local meteoric water, with a high structural control that shows water flowing through the fracture. The NaHCO3 facies is a wellbore in the intermediate groundwater flow and anthropogenic influences have occurred. The hydrochemical evolution that occurs is that Ca2+ becomes Mg2+ and then turns into Na+. The CaMgHCO3 facies dominates the proximal to distal area. The presence of HCO3
- indicates that groundwater mixing has occurred and is influenced by the decomposition of organic matter. Indications of groundwater mixing can be seen in groundwater with NaKHCO3 facies in the distal area. The medial and distal areas are densely populated areas which also affect groundwater. Geological and environmental conditions around the water resources are one of the supporting data to determine polluting sources.
Real-time Measurement of Cutting Width on a Mini Rice Combine Harvester
Authors: Putri R E , Putri I , Arlius F , Ade S , Geraldo J P 
Published: July 2022

Abstract
Variability of yield could be measured during harvesting, data could be used to evaluate management of the field and provide useful information for planning fertilizer applications for the next coming season. Measurement of cutting width is a one of parameter to get the instantaneous yield. In order to obtain an accurate instantaneous yield when harvesting rice, a proper cutting width measurement method is needed during the harvesting process. This research aim is to develop real time of cutting width during system using US-100 ultrasonic sensor on a mini combine harvester. The developed system comprises a cutting width sensor, GPS receiver and a computer installed with customized software, which, when assembled on a local rice combine. The performance of the developed system was evaluated that the sensor is working well to measure real time of cutting width during operation with a value of R2 = 1. The system also provides the variability map of the cutting width within the field.
Detection of Paddy Leaves Healthiness Area Using UAV and Rasberry Pi 4
Authors: Hasan A , Fahmy K , Putri I 
Published: July 2022

Abstract
This research is aimed to detect the area in the paddy field that have damage leaves. It is hard to check the disease and pest infestation by human vision. Position of the viewer into the damaged leaves does ensure to see intact field. In this research UAV was utilized to detect take picture the healthy leaves area from above. Aerial position of the UAV will have the benefit to check paddy field completely seen. To check the healthiness paddy leave area, the UAV was attached by the Rasberry Pi 4, and installed by the image processing program using python as language program. The Rasberry Pi connected by VNC to the laptop. The program using HSV(Hue, Saturation, Value) to distinguish the colour of heathiness of paddy leaves. The UAV was flied by using software mission planner. The paddy field could be seen on map of mission planner software, and user can select the designated field which would be detected of its paddy leave healthiness. The waypoint of the flying plan could be determined. The user hit the “C” (Capture) in laptop keyboard to take the image when the UAV will remain stop in every waypoint as long as 10 second. And The image will show the percentage of the condition of healthiness of paddy in real time at the moment. The altitude of the UAV was 8 meter from the land. The average healthiness of paddy leave in 3 way points were 9.53 m2, 10.40m2 and 11.86m2. Meanwhile in the second flight acquired 4.58 m2, 3.99 m2 and 3.54 m2. And for damaged leaves, the experiment released that 0 m2, 0.22m2 and 0m2 and for second filght were 0.108m2, 0.18m2 and 0.359m2. In this reseach use the t-paired- test, and released that significant difference for both flight. In conclusion, the UAV obtained inconsistent data for taking real time information of paddy leaves healthiness area.