bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effects of Deep-Brain Stimulation on Speech: Perceptual and Acoustic Data
Authors: Kim Yunjung , Thompson Austin , Nip Ignatius S. B. 
Published: March 2024

Purpose:
This study examined speech changes induced by deep-brain stimulation (DBS) in speakers with Parkinson's disease (PD) using a set of auditory-perceptual and acoustic measures.

Method:
Speech recordings from nine speakers with PD and DBS were compared between DBS-On and DBS-Off conditions using auditory-perceptual and acoustic analyses. Auditory-perceptual ratings included voice quality, articulation precision, prosody, speech intelligibility, and listening effort obtained from 44 listeners. Acoustic measures were made for voicing proportion, second formant frequency slope, vowel dispersion, articulation rate, and range of fundamental frequency and intensity.

Results:
No significant changes were found between DBS-On and DBS-Off for the five perceptual ratings. Four of six acoustic measures revealed significant differences between the two conditions. While articulation rate and acoustic vowel dispersion increased, voicing proportion and intensity range decreased from the DBS-Off to DBS-On condition. However, a visual examination of the data indicated that the statistical significance was mostly driven by a small number of participants, while the majority did not show a consistent pattern of such changes.

Conclusions:
Our data, in general, indicate no-to-minimal changes in speech production ensued from DBS stimulation. The findings are discussed with a focus on large interspeaker variability in PD in terms of their speech characteristics and the potential effects of DBS on speech.
Equivalent converter method for analyzing complex DC–DC converting systems
Authors: Orel Moshe Sagi , Berkovich Yefim 
Published: March 2024

AbstractThis paper introduces a new approach for analyzing the dynamics of DC–DC converters. Currently, the primary widely accepted method for examining dynamic processes is the Small Signal Analysis technique. However, when applied to modern complex converters, this method poses additional challenges in formulating and solving systems of differential equations. The method proposed in this paper is based on its application to the analysis of dynamic modes of energy functions—Lagrangians. These functions make it possible to define simple criteria to describe the course of dynamic processes, and in the end define an equivalent (approximating) conventional converter identical to the original one with respect to the course of dynamics. If the magnetic and electrical energies in the Lagrangians of both the converters are equal, the outcome is practically identical transient processes. These findings were confirmed by both theoretical analysis and experimentally modelling the dynamics of the initial converter and an equivalent to it in the Matlab–Simscape program. An additional possibility of using the transfer functions of a conventional boost converter for the theoretical analysis of the converters of much greater orders is also discussed. The authors’ experiments confirm the correctness of their theoretical conclusions.
Antecedents and consequences of telework during the COVID-19 pandemic: a natural experiment in Japan
Authors: Domae Hiina , Nakayama Masataka , Takemura Kosuke , Watanabe Yasushi , Gobel Matthias S. , Uchida Yukiko 
Published: March 2024

AbstractAmidst the global COVID-19 pandemic, telework (remote work) has become a widespread practice adopted by companies worldwide. However, Japan has notably maintained a low rate of telework implementation, suggesting cultural factors hindering its adoption. This study aimed to elucidate the antecedents and consequences of teleworking in Japan. Leveraging the natural experiment created by the COVID-19 pandemic, we addressed two key questions: (1) What socio-psychological factors in Japanese workplaces were important for implementing telework in the first place? and (2) How did the implementation of telework subsequently influence socio-psychological factors in these workplaces? Employees from various Japanese companies completed three waves of an online survey before and during the pandemic. Results showed that telework was more likely to be implemented in organizations characterized by a meritocracy. Results also showed that the implementation of telework demonstrated no measurable negative effects but instead increased levels of independence, organizational commitment, and perceived hierarchy mutability.
A field programmable gate array based Langmuir probe system for measurement of plasma parameters at 500 kHz in a high-power impulse magnetron sputtering plasma
Authors: Hickling C. J. , Hall S. , Harrison J. R. , Sharples R. , Bradley J. W. 
Published: March 2024

By utilizing Field Programmable Gate Arrays in a configuration similar to that of the Mirror Langmuir Probe, it is possible to bias a single probe at three precise voltages in sequence. These voltages can be dynamically adjusted in real-time based on the measured plasma electron temperature to ensure the transition region is always sampled. The first results have been obtained by employing this method and have generated real-time outputs of electron temperature, ion saturation current, and floating potential on a low temperature pulsed-DC magnetron at 500 kHz. These results are in good agreement with the analysis of a conventionally swept Langmuir probe. This probe is designed with the intention of being implemented on MAST-U to aid in the study of exhaust physics and enable further investigation into filamentary behavior.
First measurement of kaonic helium-4 M-series transitions
Authors: Sgaramella F , Sirghi D , Abbene L , Artibani F , Bazzi M , Bosnar D , Bragadireanu M , Buttacavoli A , Cargnelli M , Carminati M , Clozza A , Clozza F , Deda G , Del Grande R , De Paolis L , Dulski K , Fabbietti L , Fiorini C , Friščić I , Guaraldo C , Iliescu M , Iwasaki M , Khreptak A , Manti S , Marton J , Miliucci M , Moskal P , Napolitano F , Niedźwiecki S , Ohnishi H , Piscicchia K , Principato F , Scordo A , Silarski M , Sirghi F , Skurzok M , Spallone A , Toho K , Tüchler M , Vazquez Doce O , Yoshida C , Zmeskal J , Curceanu C 
Published: March 2024

Abstract
In this paper we present the results of a new kaonic helium-4 measurement with a 1.37 g l−1 gaseous target by the SIDDHARTA-2 experiment at the DAΦNE collider. We measured, for the first time, the energies and yields of three transitions belonging to the M-series. Moreover, we improved by a factor about three, the statistical precision of the 2p level energy shift and width induced by the strong interaction, obtaining the most precise measurement for gaseous kaonic helium, and measured the yield of the L
α
transition at the employed density, providing a new experimental input to investigate the density dependence of kaonic atoms transitions yield.
Intelligent fault diagnosis of railway pantograph using a novel graph construction methodology
Authors: Ma Zijie , Duan Huayu , Chen Ziyi , Bin Xing , Jian Liu 
Published: March 2024

Abstract
Railway pantographs provide power for railway vehicles by conducting electrical energy from overhead catenary. The failure of the pantograph tends to damage the contact quality between the pantograph and the catenary, reducing the transmission efficiency of electric energy. Hence, fault diagnosis of pantograph plays a significant role in expanding the service life of railway vehicles. In this work, a novel graph construction method is proposed for the fault diagnosis of pantographs combined with a graph neural network (GNN). In the graph construction method, 1D load signals collected from the test pantograph are firstly transformed into multiple 2D images with the same size in both time and frequency domains using Gramian angular field, Markov transition field and recurrence plot. Secondly, pixel values in images are regarded as features in vertexes of graphs, and graphs can be constructed by connecting neighbor vertexes. Finally, the GNN model is trained by constructed graphs for obtaining the fault diagnosis model of pantographs. Laboratory experiments are implemented to show the advantages of the proposed method by comparing it with other conventional methods.
Multiple species imaging from CFD fused H2O absorption spectral tomography and transfer learning
Authors: Wen Jinting , Cao Zhang , Zhang Xiaoqian , Xu Lijun 
Published: March 2024

Abstract
Laser absorption spectroscopy (LAS) tomography is well-proved in combustion diagnosis but has difficulty especially in the simultaneous imaging of multi-species concentrations. A multiple species imaging method from single species LAS tomography was proposed on the basis of computational fluid dynamics (CFDs) and transfer learning. CFD simulation of the methane/air flat flame was conducted to reveal the relationship among multiple species. A back propagation neural network was pre-trained with the dataset obtained from CFD simulation to predict projection values of OH mole fractions from H2O absorption lines at 7185.6 cm−1 and 7444.4 cm−1. The measurement of flat flame by a single wavelength planar laser-induced fluorescence fused LAS tomography system was conducted for network fine-tuning and experiment verification. Distributions of OH mole fractions in lean-burn conditions and nearly complete combustion conditions were quantitatively reconstructed well, while annulus profiles in fuel-rich conditions were qualitatively retrieved. Reconstructed images with two-fifth experiment data used in the network fine-tuning showed a 31.3% decline in image error compared to those without fine-tuning. This proposed method enables LAS tomography of multiple species via only one species with enough measured projections, and also shows potential in image error reduction by introducing more projections.
Hundred-watts-level Ho:YLF slab laser with good beam quality
Authors: Mao Y F , Long Q L , Gao J M 
Published: March 2024

Abstract
We demonstrated a hundred-watts-level and good beam quality Ho:YLF slab laser with a hybrid cavity. When the incident pump power was 263 W, we obtained a maximum output power of 105 W. The slope efficiency with the incident pump power was 52.5%, and the optical-to-optical conversion efficiency was 39.9%. The instability of the maximum output power was measured to be 0.35% in 30 min. With the increase of the output power, the central wavelength of laser shifted from 2051 nm to 2063 nm. The beam quality factors M
2 were measured to be 1.13 in the stable direction and 2.45 in the unstable direction. Hundred-watts-level Ho:YLF slab laser with good beam quality has not been reported yet to the best of our knowledge.
Tailoring-compensated ferrimagnetic state and anomalous Hall effect in quaternary Mn–Ru–V–Ga Heusler compounds
Authors: Liang 梁 Jin-Jing 瑾静 , Xi 郗 Xue-Kui 学奎 , Wang 王 Wen-Hong 文洪 , Lau 刘 Yong-Chang 永昌 
Published: March 2024

Abstract
Cubic Mn2Ru
x
Ga Heusler compound is a typical example of compensated ferrimagnet with attractive potential for high-density, ultrafast, and low-power spintronic applications. In the form of epitaxial thin films, Mn2Ru
x
Ga exhibits high spin polarization and high tunability of compensation temperature by freely changing the Ru content x in a broad range (0.3 < x < 1.0). Herein Mn–Ru–Ga-based polycrystalline bulk buttons prepared by arc melting are systematically studied and it is found that in equilibrium bulk form, the cubic structure is unstable when x < 0.75. To overcome this limitation, Mn–Ru–Ga is alloyed with a fourth element V. By adjusting the content of V in the Mn2Ru0.75V
y
Ga and Mn2.25–y
Ru0.75V
y
Ga quaternary systems, the magnetic compensation temperature is tuned. Compensation is achieved near 300 K which is confirmed by both the magnetic measurement and anomalous Hall effect measurement. The analyses of the anomalous Hall effect scaling in quaternary Mn–Ru–V–Ga alloy reveal the dominant role of skew scattering, notably that contributed caused by the thermally excited phonons, in contrast to the dominant intrinsic mechanism found in many other 3d ferromagnets and Heusler compounds. It is further shown that the Ga antisites and V content can simultaneously control the residual resistivity ratio (RRR) as well as the relative contribution of phonon and defect to the anomalous Hall effect a″/a′ in Mn–Ru–V–Ga, resulting in a scaling relation a″/a′ ∝ RRR1.8.
Continuous wave and active Q-switched operation of Watt-level LED-pumped two-rod Nd,Ce:YAG laser
Authors: Shen 沈 Jian-Ping 建平 , Lu 芦 Peng 鹏 , Xu 徐 Shao-Cong 少聪 , Jiang 江 Rong-Rong 容容 , Chen 陈 Yang 阳 , Chen 陈 Liang 亮 , Xing 邢 Feng-Yang 凤阳 
Published: March 2024

Abstract
A high-performance LED-side-pumped two-rod Nd,Ce:YAG laser with continuous-wave (CW) and acousto–optical (A-O) Q-switched operation is demonstrated in this work. A symmetrically shaped flat–flat cavity with two identical LED-side-pumped laser modules is employed for power scalability. In the CW regime, the maximum output average power of laser at 1064 nm is 4.41 W, corresponding to a maximum optical conversion efficiency of 5.3% and a slope efficiency is 12.4%. In the active Q-switched regime, the pulse energy of laser reaches as high as 0.89 mJ at a repetition rate of 800 Hz with a pulse width of 457.2 ns, the corresponding highest peak output power is 1.94 kW and the M
2 factor is measured to be about 8.8. To the best of the authors’ knowledge, this is the first demonstration and the highest performance of a CW LED-side-pumped two-rod laser Nd,Ce:YAG with Watt-level output reported so far.
3D modeling of a double-driver ion source considering ion magnetization: an investigation of plasma symmetry modulation methods
Authors: Xing Si-Yu , Gao Fei , Zhang Yu-Ru , Zhao Miao , Lei Guang-Jiu , Wang You-Nian 
Published: March 2024

Abstract
A three-dimensional fluid model of a double-driver negative hydrogen ion source for China Fusion Engineering Test Reactor (CFETR) neutral beam injection is developed. In this model, the magnetic filter field is generated by 16 permanent magnets, which are surrounded by a soft iron. In order to accurately describe the transportation of charged species in the presence of strong magnetic field, both the electron magnetization and ion magnetization are taken into account, and the accuracy of the model has been proved by comparison with experimental data. By employing this model, the spatial distributions of the plasma parameters have been investigated, and three methods are proposed to optimize the symmetry at the bottom of the expansion region of a double-driver source. The results indicate that by adjusting the power of Driver I while keeping the power of Driver II constant, the symmetry of the electron density and negative hydrogen ion density could be improved. Furthermore, the inclusion of partition improves the symmetry of the electron temperature and density but has no impact on the regulation of the negative hydrogen ion density distribution. Finally, the application of magnetic shield can not only improve the symmetry of the electron density and negative hydrogen ion density, but also increase their densities at the bottom of the expansion region.
Spin Drude weight for the integrable XXZ chain with arbitrary spin
Authors: Ae Shinya , Sakai Kazumitsu 
Published: March 2024

Abstract
Using generalized hydrodynamics (GHD), we exactly evaluate the finite-temperature spin Drude weight at zero magnetic field for the integrable XXZ chain with arbitrary spin and easy-plane anisotropy. First, we construct the fusion hierarchy of the quantum transfer matrices (T-functions) and derive functional relations (T- and Y-systems) satisfied by the T-functions and certain combinations of them (Y-functions). Through analytical arguments, the Y-system is reduced to a set of non-linear integral equations, equivalent to the thermodynamic Bethe ansatz (TBA) equations. Then, employing GHD, we calculate the spin Drude weight at arbitrary finite temperatures. As a result, a characteristic fractal-like structure of the Drude weight is observed at arbitrary spin, similar to the spin-1/2 case. In our approach, the solutions to the TBA equations (i.e. the Y-functions) can be explicitly written in terms of the T-functions, thus allowing for a systematic calculation of the high-temperature limit of the Drude weight.
Exact steady states of the impurity-doped XXZ spin chain coupled to dissipators
Authors: Matsui Chihiro , Tsuji Naoto 
Published: March 2024

Abstract
We give an exact matrix product steady state and matrix product forms of local observables for the bulk impurity-doped XXZ spin model coupled to dissipators at both ends, whose dynamics is described by the Lindblad quantum master equation. We find that local magnetization is induced at the impurity site when the spin current flows, which is contrary to the usual situation where the current suppresses magnetization due to heating. It is proved that this current-induced magnetization survives in the thermodynamic limit, and the spin current does not depend on the impurity strength. We discuss the role of bulk integrability by comparing the results with those of non-integrable models solved numerically by the quantum trajectory method.
Hydrodynamic correlation and spectral functions of perfect cubic crystals
Authors: Mabillard Joël , Gaspard Pierre 
Published: March 2024

Abstract
We investigate the collective dynamics of the perfect cubic crystal by deriving from the hydrodynamic equations the time-dependent correlation and the spectral functions characterizing the fluctuations of mass and momentum densities. We show that the seven hydrodynamic modes of the perfect crystal can be identified from the resonances of these spectral functions. The comparison with those of a fluid is discussed. Using the numerical values of the thermodynamic, elastic, and transport coefficients computed in our previous paper (J Mabillard and P Gaspard 2024 J. Stat. Mech. 023208) for a system of hard spheres, the theoretical expressions for the correlation and spectral functions are compared to the same functions directly computed using molecular dynamics simulations. The excellent agreement between theory and simulation provides strong support for the microscopic hydrodynamic theory of perfect crystals based on the local-equilibrium approach. This work sheds light on the fundamental mechanisms governing the collective behavior of matter in the solid state.
Macroeconomic structural change likely increases inequality in India more than climate policy
Authors: Leimbach Marian , Hübler Michael , Mahlkow Hendrik , Montrone Lorenzo , Bukin Eduard , Felbermayr Gabriel , Kalkuhl Matthias , Koch Johannes , Marcolino Marcos , Pothen Frank , Steckel Jan Christoph 
Published: March 2024

Abstract
The decarbonization of India’s economy will have different effects across income groups. As India is in the middle of the transformation process from an agriculture-based economy towards an industry- and service-based economy, called economic structural change, the extent of income distribution across households strongly depends also on the speed of economic transformation. While a number of recent studies have analyzed the distributional effects of carbon pricing, the specific role of structural change across sectors has not been in the focus of the related literature. Our study contrasts distributional effects from climate policy with distributional effects from structural change in India and asks how far carbon pricing supports or hinders structural change and development. We develop and apply a comprehensive model framework that combines economic growth and international trade dynamics related to structural change with detailed household income and expenditure data for India. Our study shows that changes in income and inequality due to carbon pricing vary with changes in the sectoral structure of an economy. Our results indicate that carbon pricing tends to delay economic structural change by retarding the reallocation of economic activities from the agricultural sector to the manufacturing sector. Furthermore, the results emphasize that the increase in inequality due to structural change is substantially stronger than due to carbon pricing. Consequently, socially sensitive policies supporting the process of structural transformation appear to be more important for poor households than lowering climate policy ambitions.
Factors Influencing Residential Settlement Preferences in the Ciptomulyo Urban Village Industrial Area
Authors: Eka Sari Kartika , Arifiany Almira Maulana Irtisa , Meidiana Christia 
Published: March 2024

Abstract
Housing is one of the fundamental human needs. In assembly this housing require, each person needs a put to dwell. When determining the location to reside, individuals have their own preferences. One of these residential preferences is to live in an industrial zone. Water pollution occurred in Ciptomulyo Sub-district due to a leather company disposing of its liquid waste into the river in 2014, and its impacts are still felt until now. Moreover, many residential houses are situated very close to industrial areas. The purpose of this research is to recognize the components that influence the residential preferences of the community. The method used for this study is multiple linear regression analysis. The research findings identified ten factors that influence the residential preferences of the community: government facilities, educational facilities, electricity infrastructure, distance to the industrial area, length of residence, occupation, land price affordability, and security. Residential preferences are dominated by proximity to public facilities and ignore environmental health and comfort factors, so that for the sustainability of residential areas, it is necessary to integrate with industrial areas to play an active role in maintaining the potency.
Utilization of Digital Applications to Support Smart Village in Cemani Village, Grogol District, Sukoharjo Regency
Authors: Puteri Eka Susilowati Anindya , Rachmawati Rini 
Published: March 2024

Abstract
Cemani Village is one of smart village pilot project in Sukoharjo Regency and included as 1000 Villages Location for Smart Village in Indonesia. Cemani Village government developed four digital applications to support smart village: Pasar Desa, Diapelinduk, digital signature, and digital studio. This study aims to identify the features, services, and utilization of digital application, and analyze the suitability between digital application features and services with user needs. This study used descriptive qualitative method. Primary data collecting with indepth interview and secondary data collecting with applications display and database documentation. The result shows that Diapelinduk integrated with digital signature, Pasar Desa, and digital studio are digital applications that developed to support Cemani Smart Village. Diapelinduk integrated with digital signature is used for making RT cover letter and studio digital is used for podcast production. Utilization of Pasar Desa as local e-commerce is unknown yet, but it is hoped will be a solution for community economy problems and increase village income. Diapelinduk integrated with digital signature and digital studio is considered suitable with the needs of Cemani Village community, while Pasar Desa cannot yet known for its suitability since it is currently actively used. Cemani Village has fulfilled five of six pillars of smart village, with smart governance gaining dominant achievement. Digital application utilization is an instrument to support the development of Cemani Smart Village.