bluuebunny/crossref_metadata_2025_split huggingface dataset:
Rotational and vibrational temperatures of hydrogen nonequilibrium plasmas from Fulcher band emission spectra
Authors: Bruno Domenico , Zaniol Barbara , Mario Isabella 
Published: December 2022

Abstract
A roto-vibrational resolved corona model is discussed for the simulation of the Fulcher spectrum in Hydrogen low pressure discharges. The model allows to derive H
2 rotational and vibrational temperatures from the analysis of emission spectra in the [600:640] nm range. The model is applied to the analysis of emission spectra collected at the SPIDER negative ion source. Results are presented for different values of the applied power to the plasma, pressure, and for different regions of the plasma, thus providing a characterization of the plasma with respect to the internal temperatures of the molecular component.
Classification of DC discharge modes based on acoustic signal
Authors: Xiong Zilan , Wang Yuqi , Li Mengqi 
Published: December 2022

Abstract
Gas discharge will produce rich electromagnetic, optical as well as acoustic signals. Compared with the other signals, acoustic signals are also significant and would offer non-contact, low cost and easy-operation approach for online discharging monitoring, which require more attention and intensive study. In this paper, we studied the characteristics of acoustic signals in the corona, transient glow, spark, and glow discharging modes generated in a DC pin-to-pin configuration and developed a method using acoustic signals to classify the different discharge modes. The acoustic signals of the discharge at different gaps were recorded by adjusting the gap distance. 250 sets of acoustic signal samples were collected for each discharging mode. It was found that acoustic signals behave differently in different modes. Based on the short-time Fourier transform (STFT) of the acoustic signals, a novel method for discharge mode classification using the support vector machine (SVM) approach was developed. The final predictive accuracy of the trained classifier exceeds 90%.
Binding energies, oscillator strengths of core/shell spherical quantum dots with or without on- or off-center donor impurities under an external magnetic field
Authors: Negoukoumé Abdoulaï A , Melingui Melono R L , Doba P , Motapon O 
Published: December 2022

Abstract
Non-relativistic energy levels, binding energies and oscillator strengths of CdSe/ZnTe core/shell spherical quantum dots with or without impurities submitted to an external magnetic field have been investigated by using a B-spline based variational method, within the framework of the effective mass approximation. In the case where the system contains hydrogenic impurity, the effects of its off-center displacement combined to the height of the confining potential have also been studied. The dielectric constant as well as the effective mass are considered to be dependent on the radius. The modifications occurring due to the presence of the magnetic field have been analyzed. We have found that the electronic and optical properties are strongly affected by the magnetic field strength, the spatial confinement and the off-center displacement. The oscillator strengths and the binding energies increase with the magnetic field, but its effect on the binding energies (both ground and excited states) is dimmed by the reduction of the core-to-shell radii ratio and the increase of the off-center displacement to the vicinity of the shell. However, the oscillator strengths increase with the magnetic field when the off-center displacement increases towards the shell.
Dynamic correlation and polaronic effects on the correlational properties of finite-temperature electron quantum wire
Authors: Puttar Devi , Verma Vishal , Garg Vinayak , Moudgil R. K. 
Published: December 2022

Abstract
We study the role of dynamic correlation and polaronic effects on the correlational properties of a GaAs-based electron quantum wire at finite-temperature T. The dynamics of electron correlations is incorporated through the self-consistent mean-field approximation of Hasegawa and Shimizu (the qSTLS theory) and the polaronic effects via the Fröhlich interactions. Results are presented for the static correlation functions, dynamic structure factor and electron’s contact probability over a wide range of T and electron number density r

s
. We find that for a fixed wire width b and T, electrons undergo a transition from the quantum liquid to Wigner crystal state due to the dynamics of severely correlated electrons at a critical

r

s

=

r

s

c

. The inclusion of polaronic effects along with the conventional electron-electron interactions tends to increase r

s

c
significantly at each T ultimately improving the quantum phase diagram. The electron’s contact probability exhibits a non-monotonic T-dependence which remains positive over a broader range of r

s
owing to the inclusion of polaronic effects. Besides, we explore the effect of phonon contribution on the plasmon energy of the quantum wire at non-zero T and find that there is splitting in the energy into two branches namely, plasmonlike and phononlike with former having energy lower than the latter. Both of the energy modes show consistent blue shift with rise in T, get damp at a critical wave vector q

c
, and q

c
decreases with T. Finally, we calculate the finite-T polaronic contribution to the free energy whose magnitude increases with T as r

s
→ 0 and it becomes almost constant at sufficiently high r

s
.
Improving the performance of the self-powered polymer-based UV/Vis photodetectors via carbon fibers
Authors: Havigh Roya Shokrani , Chenari Hossein Mahmoudi , Yıldırım Fatma , Orhan Zeynep , Aydoğan Ş 
Published: December 2022

Abstract
Both Polyvinylpyrrolidone (PVP) and matrix-polymer of carbon (C)-PVP fibers (Fs) composites were synthesized by using the electrospinning technique and deposited onto the p-Si wafers to obtain PVP Fs/p-Si and C-PVP Fs/p-Si devices. The ultraviolet/Visible (UV/Vis) photodetector performance of both devices was compared. Both devices gave self-powered mode and with increasing the visible light intensity, the photocurrents of both devices increased. Besides, it was observed that the optical performance of the device containing C was better than the PVP Fs/p-Si device in both visible and UV lights. This was attributed to the high absorption properties of carbon and the increase in conductivity in the PVP due to carbon fibers. Furthermore, it is thought that the electric field formed in the carbon-PVP interaction and C-PVP/p-Si interface improves the optical properties of the device by increasing the exciton separation efficiency. Under the self-powered mode, the C-PVP Fs/p-Si device exhibited a maximum detectivity and ON/OFF ratio of 5.60 × 1010 Jones and 53 764, respectively for UV light of 365 nm. Under 100 mW visible light, these values ​​were determined as 1.01 × 1010 Jones and 9739, respectively, at V = 0. In addition, from the obtained noise-equivalent power (NEP) values, it was concluded that weaker signals can be detected under UV light (6.94 × 10−14 w Hz−1/2, at −2 V) than visible light (3.32 × 10−13 w/Hz1/2, at −2 V) for C-PVP Fs/p-Si.
Implementation of SOLPS-ITER code with new Grad–Zhdanov module for D–T mixture
Authors: Makarov S.O. , Coster D.P. , Kaveeva E.G. , Rozhansky V.A. , Senichenkov I.Y. , Veselova I.Y. , Voskoboynikov S.P. , Stepanenko A.A. , Bonnin X. , Pitts R.A. 
Published: December 2022

Abstract
A new Grad–Zhdanov module is implemented into the SOLPS-ITER code for calculation of the parallel kinetic coefficients. A complete, multi-ion generalization is performed, relaxing the heavy impurity assumption. A JET-like D+T+Ne test simulation is conducted to demonstrate the ability to model a 50/50 deuterium (D) and tritium (T) mixture in SOLPS-ITER. More than 30% T build-up with respect to D is observed in different parts of the simulation domain, in particular at the high field side. A T predominance over D is also observed near both the inner and outer targets. It is a result of the different effective diffusion, dominated by charge-exchange processes, for the D and T neutral species. A simple 1D model is proposed to describe this phenomenon. The contribution to the differing D and T distribution in different regions from the Grad–Zhdanov thermal force is also studied. Due to the thermal force and the D/T poloidal flow from the low field side to the high field side, the prevalence of the T species over D is found at the high field side at the X-point level. The latter leads to an inner–outer divertor asymmetry of

n
T

/

n
D

. However, the effect is relatively small due to the close D and T masses. It is further shown that the infinite ion mass difference limit, which is used for the derivation of the Zhdanov-Yushmanov analytical expressions and applied for the thermal force coefficient calculation previously used in the SOLPS-ITER code, overestimates

n
T

/

n
D

significantly. Thus, the old SOLPS-ITER model should not be applied for D–T simulations. Finally, possible experimental studies of the D and T spatial separation due to the new effects revealed by this modelling are discussed.
Typicality of the 2021 Western North America summer heatwave
Authors: Lucarini Valerio , Melinda Galfi Vera , Riboldi Jacopo , Messori Gabriele 
Published: December 2022

Abstract
Elucidating the statistical properties of extreme meteo-climatic events and capturing the physical processes responsible for their occurrence are key steps for improving our understanding of climate variability and climate change and for better evaluating the associated hazards. It has recently become apparent that large deviation theory (LDT) is very useful for investigating persistent extreme events, and specifically, for flexibly estimating long return periods and for introducing a notion of dynamical typicality. Using a methodological framework based on LDT and taking advantage of long simulations by a state-of-the-art Earth system model, we investigate the 2021 Western North America summer heatwave. Indeed, our analysis shows that the 2021 event can be seen as an unlikely but possible manifestation of climate variability, whilst its probability of occurrence is greatly amplified by the ongoing climate change. We also clarify the properties of spatial coherence of the 2021 heatwave and elucidate the role played by the Rocky Mountains in modulating hot, dry, and persistent extreme events in the Western Pacific region of North America.
A gas-phase standard delivery system for direct breath analysis
Authors: Streckenbach Bettina , Sakas Justinas , Perkins Nathan , Kohler Malcolm , Moeller Alexander , Zenobi Renato 
Published: December 2022

Abstract
Applications for direct breath analysis by mass spectrometry (MS) are rapidly expanding. One of the more recent mass spectrometry-based approaches is secondary electrospray ionization coupled to high-resolution mass spectrometry (SESI-HRMS). Despite increasing usage, the SESI methodology still lacks standardization procedures for quality control and absolute quantification. In this study, we designed and evaluated a custom-built standard delivery system tailored for direct breath analysis. The system enables the simultaneous introduction of multiple gas-phase standard compounds into ambient MS setups in the lower parts-per-million (ppm) to parts-per-billion (ppb) range. To best mimic exhaled breath, the gas flow can be heated (37 °C–40 °C) and humidified (up to 98% relative humidity). Inter-laboratory comparison of the system included various SESI-HRMS setups, i.e. an Orbitrap and a quadrupole time-of-flight mass spectrometer (QTOF), and using both single- as well as multi-component standards. This revealed highly stable and reproducible performances with between-run variation <19% and within-run variation <20%. Independent calibration runs demonstrated high accuracy (96%–111%) and precision (>95%) for the single-compound standard acetone, while compound-specific performances were obtained for the multi-component standard. Similarly, the sensitivity varied for different compounds within the multi-component standard across all SESI-Orbitrap and -QTOF setups, yielding limits of detections from 3.1 ppb (for p-xylene) to 0.05 ppb (for 1,8-cineol). Routinely applying the standard system throughout several weeks, allowed us to monitor instrument stability and to identify technical outliers in exhaled breath measurements. Such routine deployment of standards would significantly improve data quality and comparability, which is especially important in longitudinal and multi-center studies. Furthermore, performance validation of the system demonstrated its suitability for reliable absolute quantification while it illustrated compound-dependent behavior for SESI.
The yield of maize-soybean intercropping on Mycorrhizal inoculation treatment and plant nutrition provision in suboptimal land North Lombok, Indonesia
Authors: Astiko W , Ernawati N M L , Silawibawa I P 
Published: December 2022

AbstractMycorrhizal inoculation and plant nutrition have an important role in increasing the yield of maize-soybean intercropping in suboptimal land. The experimental design used was a factorial randomized block design with two factors, the first factor was AMF inoculation which consisted of two levels, namely M0= without AMF inoculation and M1= with AMF inoculation, and the second factor was plant nutrition treatment. with four levels, namely U0= without the addition of nutrients, U1= with the addition of 100% dose of inorganic fertilizer (maize = urea 300 kg ha-1and Phonska 200 kg ha-1, soybean = 60 kg ha-1Urea and 120 kg ha-1Phonska), U2= with the addition of 100% dose of cattle manure and U3= with the addition of 50% dose of cattle manure (6 t ha-1) plus 50% dose of inorganic fertilizer (maize = urea 150 kg ha-1and Phonska 100 kg ha-1, soybean= 30 kg ha-1Urea and 60 kg ha-1Phonska). The results showed that AMF inoculation treatment and application of 50% inorganic fertilizer plus 50% organic fertilizer gave the highest yield with maize grain weight of 4.3 tons ha-1and soybean grain weight of 0.5 tons ha-1.
Perspective of increasing value added of waste in integrated rice-livestock system on irrigated land agroecosystem
Authors: Nazam Moh. , Hadiawati Lia , Suriadi Ahmad 
Published: December 2022

Abstract
The farmers’ welfare has still the main milestone in agricultural development. Farmers are faced with a lack of access to productive assets that are managed as a source of income. The knowledge and technology owned by farmers in order to manage limited resources of farms and anticipate climate change are also still limited, causing a problem in increasing productivity, low efficiency, and added value of farming. Meanwhile, abundant plant and livestock waste have not been utilized optimally. This study aimed to determine the perspective of increasing the added value of plant and livestock waste as a bio-industrial farming system based on rice-livestock integration in irrigated land agroecosystems. The research was conducted in Setanggor Village, West Praya District, Central Lombok Regency, West Nusa Tenggara from 2015-2020. The results of the study indicate that the processing of livestock waste into organic fertilizer has become a new source of income for farmers and workers and contributes to increasing household income to meet the minimum necessities of life. The use of organic fertilizer from livestock waste for 1-2 t ha-1 in rice farming can increase productivity by an average of 13.11% and farm efficiency by an average of 9.25%, providing additional income to farmers cooperator compared to noncooperator farmers by about IDR.3.638.360 ha-1 (23.73%). The processing and utilization of straw waste into animal feed can overcome the scarcity of feed in the dry season and provide daily weight gain of 0.58-0.69 kg. day-1. The development of a bio-industry farming system based on rice-livestock integration in an irrigated agroecosystem can increase farmers’ income in a sustainable manner.
The profile of soil fertility and yield of coffee in the land with a different slope (Case study in Way Tenong District, West Lampung Regency)
Authors: Barus J , Ernawati Rr , Mawardi R 
Published: December 2022

Abstract
This study aims to analyze the level of soil fertility, the condition of the physical properties of the soil, and the level of soil erodibility on coffee plantations with various slope levels. Observations were made on coffee plantations in two villages in Way Tenong District, West Lampung Regency, namely Fajar Bulan Village and Puralaksana Village, in April 2022. The number of sampling points in each village is 6 points. Composite soil samples were taken to analyze the chemical properties of the soil, including pH, C-Organic, N-Total, P content, and soil cation exchange capacity. Meanwhile, intact soil samples were used to determine the values of bulk density, soil porosity, soil texture, and soil moisture content. The analysis was carried out at the Laboratory of Institute for Agricultural Technology Assessment (BPTP) Lampung. Based on the soil pH levels at the sampling location, the soil reactions were acid with pH < 5, with only one location with a pH above 5 (FB 1). Soil organic matter content in most locations was still low, except for FB 1 location. The slope of the slopes at the soil sampling location varied from flat (0 - 10%) to mountainous (>60%). Based on physical properties, soil density is generally high (the highest BD is 1.59) and low porosity value. The coffee yields tend to decline from 2019-2021.
Changes in the anatomical characters of root and stem of three large-seeded soybean (Glycine max (L.) Merrill) under drought stress
Authors: Kisman  , Sumarjan  , Hemon A. Farid , Dewi Suprayanti Martia , Susilowati Lolita Endang , Gunawan Baiq Weni 
Published: December 2022

Abstract
Drought stress, one of the most common abiotic environmental stresses, occurs most often due to climate change, and this can limit plant growth and development. Plant genotypes including soybeans often provide different anatomical responses in the face of drought stress. This study aims to find out the changes in the anatomical characters of root and stem of three large-seeded soybean genotypes under drought stress conditions. The experimental method was used in this study and using polybags as an experimental unit which was carried out at the Greenhouse of the Faculty of Agriculture, Mataram University. The study was conducted using the Completely Randomized Design (CRD) factorial with two factors. The first factor was the drought stress (K) consisted of K0 (normal, no drought stress) and K1 (drought stress). The second factor was the large-seeded soybean genotype (G) consisted of G1 (KH1), G2 (Argomulyo), and G3 (Grobogan). Each combination of the treatments was repeated in three replicates. The results of this study showed that: (1) drought stress increased the thickness of the epidermis and phloem layers and decreased the thickness of the cortex, parenchyma stele, and xylem in the root anatomy, while in the anatomy of the stem decreased in the thickness of the epidermis, the thickness of xylem and phloem, meanwhile in the anatomy of the leaves did not show any difference. (2) Under drought stress conditions, Argomulyo was the lowest in thickness of the cortex and xylem of the roots and stems compared to genotypes KH1 and Grobogan. (3) KH1 experienced a significant increased in the diameter of the stem pith under drought stress.
Development of local staple food in supporting food security: a case study in North Lombok, West Nusa Tenggara
Authors: Yusuf M. , Usman Abdullah 
Published: December 2022

Abstract
Food supplies for households, hotels and restaurants are still mostly supplied from outside of the North Lombok. The high potential of the region which has not been widely used to produce food, can reduce the import. The aims of this research are to: (1) Identify the potential and utilization of local staple food in North Lombok, West Nusat Tenggara (2) mapping local food. Descriptive method was used in this study and data collected using survey techniques were analyzed descriptively. Results showed that: (1) there were 16 (sixteen types) of local staple foods in addition to rice which was still tried by the community in North Lombok. The local staple food can be developed as one of the local staple alternatives. The foods are: cassava, sweet potato, taro, Indian shot, arrowroot, tubbers, bitter yam, lesser yam, stink lily, breadfruit, foxtail millet, sorghum, corn, peanut, lablab bean, and pumpkin. The utilization of processed products from these plants is still limited as direct consumption in the form of boil or fried, but some have been processed in other forms such as: chips, crackers, compote, flour, and various other snacks; (2) The sixteenth potential of the local staple food is quite available and spread in all sub-districts in North Lombok Regency, except for lablab Beans which only exist in Bayan District.
Effectiveness of several plant extracts as botanical fungicides to control damping-off disease caused by Sclerotium rolfsii on soybean
Authors: Fauzi M. Taufik , Sari R. Dian 
Published: December 2022

Abstract

Sclerotium rolfsii is the causal organism of the damping-off disease of soybean. Control of this disease is usually carried out by using chemical fungicides that have a negative impact on the environment. One of the efforts to overcome this problem is by using botanical fungicides from plant extracts. This study aims to determine the effect of plant extracts from Alpinia purpurata, Zingiber officinale, Curcuma longa, Curcuma xanthorrhiza, and Kaempferi galanga on the in-vitro growth of Sclerotium rolfsii and on the in-vivo of damping-off disease of soybean. In addition, a phytochemical test was also undertaken to determine the content of secondary compounds found in plant extracts. The experiment was carried out at the Chemistry Laboratory of the Faculty of Mathematics and Natural Sciences, Microbiology Laboratory and a Greenhouse of Faculty of Agriculture at the University of Mataram, from July until October 2020. The experiments used a completely randomized design (CRD) with seven treatments and three replications. The seven treatments were A. purpurata, Z. officinale, C. longa, C. xanthorrhiza, and K. galanga with a concentration of 5% (v/v), control (+), and the alcohol (-). The results showed that the extracts of A. purpurata, Z. officinale, C. longa, C. xanthorrhiza, and K. galanga with a concentration of 5% could suppress the growth of S.rolfsii by in-vitro. However, in the in-vivo trial, no extracts could suppress damping-off disease of soybean.