bluuebunny/crossref_metadata_2025_split huggingface dataset:
Design and analysis of passive variable stiffness device based on shear stiffening gel
Authors: Wenbin Chen , Xiang Fang , Jingming Che , Caihua Xiong 
Published: October 2022

Abstract
Shear thickening materials are utilized as the core of variable stiffness devices in various engineering applications in recent years. However, due to the used materials being liquid, most of these devices are suffered from the problem of liquid leakage and coagulation. To address this issue, this paper proposes a design method of a passive variable stiffness device based on shear stiffening gel (SSG), which integrates the core SSG and spring into a compact structure to obtain well stability. The used SSG can affect the force transfer within the device, thereby influencing the system’s stiffness dynamically over the external impact load. Due to the core SSG being good shear stiffening properties, the device is highly sensitive to frequency and shows variable stiffness characteristics. When the frequency of external load increased from 0.1 Hz to 5 Hz, the equivalent stiffness of the device could be increased by 105.74%. An equivalent nonlinear model is used to represent the overall stiffness of the device as a function of the frequency and displacement amplitude of the load. The output of the equivalent nonlinear model agrees well with the experimental data. The cross-validation also proves the accuracy of the model fitting, which provides a quantitative description of the dynamic performance of the variable stiffness device. By combining different types of SSGs and springs with different stiffness, the design principle of the variable stiffness device proposed in this paper can be utilized in various impact-loading applications, such as designing the exoskeletal load carriage supporting mechanism and vehicle suspension systems. The work of this paper has guiding significance for the design of adaptive variable stiffness devices.
Quantum interferometric two-photon excitation spectroscopy
Authors: Chen Yuanyuan , León-Montiel Roberto de J , Chen Lixiang 
Published: October 2022

Abstract
Two-photon excitation spectroscopy is a nonlinear technique that has gained rapidly in interest and significance for studying the complex energy-level structure and transition probabilities of materials. While the conventional spectroscopy based on tunable classical light has been long established, quantum light provides an alternative way towards excitation spectroscopy with potential advantages in temporal and spectral resolution, as well as reduced photon fluxes. By using a quantum Fourier transform that connects the sum-frequency intensity and N00N-state temporal interference, we present an approach for quantum interferometric two-photon excitation spectroscopy. Our proposed protocol overcomes the difficulties of engineering two-photon joint spectral intensities and fine-tuned absorption-frequency selection. These results may significantly facilitate the use of quantum interferometric spectroscopy for extracting the information about the electronic structure of the two-photon excited-state manifold of atoms or molecules without any requirement for precise and complicated scanning in the spectral domain. This may be particularly relevant for photon-sensitive biological and chemical samples.
The angular scale of homogeneity with SDSS-IV DR16 luminous red galaxies
Authors: Andrade Uendert , Gonçalves Rodrigo S. , Carvalho Gabriela C. , Bengaly Carlos A. P. , Carvalho Joel C. , Alcaniz Jailson 
Published: October 2022

Abstract
We report measurements of the angular scale of cosmic homogeneity (θH
) using the recently released luminous red galaxy sample of the sixteenth data release of the Sloan Digital Sky Survey (SDSS-IV LRG DR16). It consists of a model-independent method, as we only use the celestial coordinates of these objects to carry out such an analysis. The observational data is divided into thin redshift bins, namely 0.67 < z < 0.68, 0.70 < z < 0.71, and 0.73 < z < 0.74, in order to avoid projection biases, and we estimate our uncertainties through a bootstrap method and a suite of mock catalogues. We find that the LRGs exhibit an angular scale of homogeneity consistent with the predictions of the standard cosmology within the redshift interval studied. Considering the bootstrap method, in which the measurements are obtained in a model-independent way, we found at 1σ level that θH

boot(0.675) = 7.57 ± 2.91 deg, θH

boot (0.705) = 7.49 ± 2.63 deg and θH

boot (0.735) = 8.88 ± 2.81 deg. Such results are in good agreement with the ones obtained using mock catalogues built under the assumption of the standard cosmological model.
Modeling and Measuring Friction of the Leighton 10 m Telescope
Authors: Guo Yongwei , Woody David , Matinez Nicolas 
Published: October 2022

Abstract
Estimating and identifying friction are important aspects of simulating a mechanical drive system. Accurate friction modeling helps to improve a telescope's performance. However, the friction conditions inside are complex and hard to measure. We did simulations with mathematical transfer functions for the Leighton 10 m Telescope and employed a polyline model to identify sources of friction. We made a two-stage model for the Leighton 10 m Telescope. Based on measurements of the motor's currents and speeds, we constructed a curve containing the friction information of the transmission elements. We simulated the system using a step function input under many combinations of friction parameters. By comparing simulation results with the measured ones, we determined the various friction components. This model accurately reproduced the telescope performance including the nonlinearities.
Organic electro-optic polymer materials and organic-based hybrid electro-optic modulators
Authors: Wang Yan , Liu Tongtong , Liu Jiangyi , Li Chuanbo , Chen Zhuo , Bo Shuhui 
Published: October 2022

Abstract
High performance electro-optic modulator, as the key device of integrated ultra-wideband optical systems, have become the focus of research. Meanwhile, the organic-based hybrid electro-optic modulators, which make full use of the advantages of organic electro-optic (OEO) materials (e.g. high electro-optic coefficient, fast response speed, high bandwidth, easy processing/integration and low cost) have attracted considerable attention. In this paper, we introduce a series of high-performance OEO materials that exhibit good properties in electro-optic activity and thermal stability. In addition, the recent progress of organic-based hybrid electro-optic devices is reviewed, including photonic crystal-organic hybrid (PCOH), silicon-organic hybrid (SOH) and plasmonic-organic hybrid (POH) modulators. A high-performance integrated optical platform based on OEO materials is a promising solution for growing high speeds and low power consumption in compact sizes.
Synthesis and electromagnetic transport of large-area 2D WTe2 thin film
Authors: Zhang Yumeng , Wang Zhejia , Feng Jiaheng , Ming Shuaiqiang , Qu Furong , Xia Yang , He Meng , Hu Zhimin , Wang Jing 
Published: October 2022

Abstract
Tungsten telluride thin films were successfully prepared on monocrystal sapphire substrates by using atomic layer deposition and chemical vapor deposition technology, and the effects of different tellurization temperatures on the properties of tungsten telluride films were investigated. The growth rate, crystal structure and composition of the film samples were characterized and analyzed by using scanning electron microscope, Raman spectroscopy and X-ray photoelectron spectroscopy. The results showed that tungsten telluride thin films with good crystal orientation in (001) were obtained at telluride temperature of 550 °C. When the telluride temperature reached 570 °C, the tungsten telluride began to decompose and unsaturated magnetoresistance was found.
Multilayer doped-GeSe OTS selector for improved endurance and threshold voltage stability
Authors: Zhang Shiqing , Song Bing , Jia Shujing , Cao Rongrong , Liu Sen , Xu Hui , Li Qingjiang 
Published: October 2022

Abstract
Selector devices are indispensable components of large-scale memristor array systems. The thereinto, ovonic threshold switching (OTS) selector is one of the most suitable candidates for selector devices, owing to its high selectivity and scalability. However, OTS selectors suffer from poor endurance and stability which are persistent tricky problems for application. Here, we report on a multilayer OTS selector based on simple GeSe and doped-GeSe. The experimental results show improving selector performed extraordinary endurance up to 1010 and the fluctuation of threshold voltage is 2.5%. The reason for the improvement may lie in more interface states which strengthen the interaction among individual layers. These developments pave the way towards tuning a new class of OTS materials engineering, ensuring improvement of electrical performance.
Towards a consensus on a continuous coordinated universal time
Authors: Levine Judah , Tavella Patrizia , Milton Martin 
Published: October 2022

Abstract
This paper explains the considerations that were important in 1972, when the current leap second procedure was adopted, to maintain a close connection between UTC, the international reference time scale, and UT1—a time scale based on the rotation of the Earth. Although some of these considerations are still relevant, the procedure for adding leap seconds creates difficulties in many modern applications that require a continuous and monotonic time scale. We present the advantages and disadvantages of the leap second procedure, and some of the problems foreseen if it is not reconsidered. We suggest the general outline of a way forward, which addresses the deficiencies in the current leap second system, and which will ensure that UTC remains an international standard that is useful and appropriate for all time and frequency applications. Further discussion and evaluation of the impact of any changes is required.
Modular pulse synthesizer for transcranial magnetic stimulation with fully adjustable pulse shape and sequence
Authors: Li Z , Zhang J , Peterchev A V , Goetz S M 
Published: October 2022

Abstract
The temporal shape of a pulse in transcranial magnetic stimulation (TMS) influences which neuron populations are activated preferentially as well as the strength and even direction of neuromodulation effects. Furthermore, various pulse shapes differ in their efficiency, coil heating, sensory perception, and clicking sound. However, the available TMS pulse shape repertoire is still very limited to a few biphasic, monophasic, and polyphasic pulses with sinusoidal or near-rectangular shapes. Monophasic pulses, though found to be more selective and stronger in neuromodulation, are generated inefficiently and therefore only available in simple low-frequency repetitive protocols. Despite a strong interest to exploit the temporal effects of TMS pulse shapes and pulse sequences, waveform control is relatively inflexible and only possible parametrically within certain limits. Previously proposed approaches for flexible pulse shape control, such as through power electronic inverters, have significant limitations: The semiconductor switches can fail under the immense electrical stress associated with free pulse shaping, and most conventional power inverter topologies are incapable of generating smooth electric fields or existing pulse shapes. Leveraging intensive preliminary work on modular power electronics, we present a modular pulse synthesizer (MPS) technology that can, for the first time, flexibly generate high-power TMS pulses (one-side peak ∼4000 V, ∼8000 A) with user-defined electric field shape as well as rapid sequences of pulses with high output quality. The circuit topology breaks the problem of simultaneous high power and switching speed into smaller, manageable portions, distributed across several identical modules. In consequence, the MPS TMS techology can use semiconductor devices with voltage and current ratings lower than the overall pulse voltage and distribute the overall switching of several hundred kilohertz among multiple transistors. MPS TMS can synthesize practically any pulse shape, including conventional ones, with fine quantization of the induced electric field (⩽17% granularity without modulation and ∼300 kHz bandwidth). Moreover, the technology allows optional symmetric differential coil driving so that the average electric potential of the coil, in contrast to conventional TMS devices, stays constant to prevent capacitive artifacts in sensitive recording amplifiers, such as electroencephalography. MPS TMS can enable the optimization of stimulation paradigms for more sophisticated probing of brain function as well as stronger and more selective neuromodulation, further expanding the parameter space available to users.
Evaluating sea ice thickness simulation is critical for projecting a summer ice-free Arctic Ocean
Authors: Zhou Xiao , Wang Bin , Huang Fei 
Published: October 2022

Abstract
The rapid decline of Arctic sea ice, including sea ice area (SIA) retreat and sea ice thinning, is a striking manifestation of global climate change. Analysis of 40 CMIP6 models reveals a very large spread in both model simulations of the September SIA and thickness and the timing of a summer ice-free Arctic Ocean. The existing SIA-based evaluation metrics are deficient due to observational uncertainty, prominent internal variability, and indirect Arctic response to global forcing. Given the critical roles of sea ice thickness (SIT) in determining Arctic ice variation throughout the seasonal cycle and the April SIT bridging the winter freezing and summer melting processes, we propose two SIT-based metrics, the April mean SIT and summer SIA response to April SIT, to assess climate models’ capability to reproduce the historical change of the Arctic sea ice area. The selected 11 good models reduce the uncertainty in the projected first ice-free Arctic by 70% relative to 11 poor models. The chosen models’ ensemble mean projects the first ice-free year in 2049 (2043) under the shared socio-economic pathways (SSP)2-4.5 (SSP5-8.5) scenario with one standard deviation of the inter-model spread of 12.0 (8.9) years.
Inter-connected challenges: an overview of bioeconomy in Europe
Authors: Morone Piergiuseppe , D’Adamo Idiano , Cianfroni Mattia 
Published: October 2022

Abstract
The use of renewable biological resources from the land and sea to produce food, materials and energy is one of the potential solutions to implement the green transition. The bioeconomy is developed in Europe, however it shows a different trend in several countries. The methodology used in this paper is based on multicriteria decision analysis and considers three parameters as criteria: workers, turnover and value added. This work investigates the bioeconomy sectors in 28 European countries using the socio-economic indicator for the bioeconomy (SEIB). We provide useful data for all stakeholders and propose a quantitative analysis emphasizing the contribution of each bio-based sector. The results show that Ireland is ahead of the Netherlands and Denmark in the SEIB for all sectors and leads in the SEIB for manufacturing and bio-energy sectors followed by Denmark. The differences with other European countries are significant. Some countries present a rather weak situation (Slovakia and Malta). The values of the SEIB are mainly linked to performance in two macro sectors: (a) agriculture and (b) manufacture of food, beverages and tobacco. The decomposition analysis highlights the performance of each country according to the socio-economic parameter and the bioeconomy sectors, and it is highlighted how performance monitoring allows for the identification of corrective actions. Some policy implications are proposed to support the development of bioeconomy sectors by targeting inter-connected challenges that aim to foster sustainability.
Totally asymmetric simple exclusion process with local resetting and open boundary conditions
Authors: Pelizzola A , Pretti M 
Published: October 2022

Abstract
We study a totally asymmetric simple exclusion process with open boundary conditions and local resetting at the injection node. We investigate the stationary state of the model, using both mean–field (MF) approximation and kinetic Monte Carlo simulations, and identify three regimes, depending on the way the resetting rate scales with the lattice size. The most interesting regime is the intermediate resetting one, as in the case of periodic boundary conditions. In this regime we find pure phases and phase separation phenomena, including a low–density/high–density phase separation, which was not possible with periodic boundary conditions. We discuss density profiles, characterizing bulk regions and boundary layers, and nearest–neighbor covariances, finding a remarkable agreement between MF and simulation results. The stationary state phase diagram is mapped out analytically at the MF level, but we conjecture that it may be exact in the thermodynamic limit. We also briefly discuss the large resetting regime, which exhibits an inverse characteristic length scale diverging logarithmically with the lattice size.
Rigorous convergence condition for quantum annealing
Authors: Kimura Yusuke , Nishimori Hidetoshi 
Published: October 2022

Abstract
We derive a generic bound on the rate of decrease of transverse field for quantum annealing to converge to the ground state of a generic Ising model when quantum annealing is formulated as an infinite-time process. Our theorem is based on a rigorous upper bound on the excitation probability in the infinite-time limit and is a mathematically rigorous counterpart of a previously known result derived only from the leading-order term of the asymptotic expansion of adiabatic condition. Since our theorem gives a sufficient condition of convergence for a generic transverse-field Ising model, any specific problem may allow a better, faster, control of the coefficient.
Method of Selective Literature Review in Defining Social Sustainability of Sustainable Development
Authors: Syafiq Abd Rashid Mohamad Hafizuddin , Zakaria Rozana , Aminudin Eeydzah , Adzar Jeffryl Azniel , Shamsuddin Siti Mazzuana , Munikanan Vikneswaran , Mustafa Nur Ainina 
Published: October 2022

Abstract
The imbalance of attention given in adapting the social principles in the sustainable development agenda is considered as an indisputable issue that has been highlighted in many scholarly literatures. Scholars were in line in arguing that of the three pillars of sustainability associated with sustainable development, namely environment, economy and social, the social pillar is often being overlooked. In relation to that, a study has been conducted to explore in detail the attributes of social sustainability from the sustainable development perspective. The study managed to outline the key principles of social sustainability from the development perspective based on the in-depth review of the previous scholarly literature. This paper highlights the Systematic Literature Review (SLR) methodology adapted in the study. A total of 81 related scholarly literature from year 1991 to year 2020 were reviewed by adapting the SLR method. Two principles of searching techniques, namely advanced searching (screening) and manual searching (eligibility) were utilized to track the relevant literature. The details of the searching techniques for each reviewed scholarly literature published for almost three decades of publication are outlined in this paper.
Developing methodology to assess the thermal comfort of traditional Malay house
Authors: Hassin N S F N , Misni A 
Published: October 2022

AbstractThe natural harmony between people, houses, and the environment is frequently highlighted in studies on traditional architecture. Traditional Malay house architecture, for example, is designed in hot-humid regions to promote maximum thermal comfort with natural ventilation while minimizing dampness. However, further research is required to determine if the traditional house is a sustainable design that can still adapt to current climate conditions due to global warming’s increased indoor environment. This paper intends to identify and discuss the thermal comfort assessment approach by implement empirical research through field measurement. The assessment involves physical measurements and a satisfaction survey—the data analysis using a statistical adaptive model, computer simulation, and comparative analysis. Lastly, the data is verified based on the ASHRAE Standard 55 and hypothesis-testing. The finding will contribute to aiding the stakeholders and designers to adapt the traditional Malay house construction as an example of the best or alternative designs of climate-responsive architecture. Thus, the idea of producing a climate-responsive recommend simulation research.
A Review of Smart City Elements and Smart City Performances
Authors: Rozman A T , Azmi N A , Sukereman A S 
Published: October 2022

Abstract
Smart City requires citizen participation and many key metrics need to be considered such as Smart city elements and Smart City performances. However, the researchers rarely discuss the types of elements and performance need for Smart City programs to succeed. The main contribution of this paper is to investigate recent literature reviews, comparing and selecting valuable elements and performances that require the formation of the conceptual framework. This study shall assist the administrators and policymakers to choose the best criteria of their elements and performances to make their Smart City program successful.
Effective Community Participation in Planning and Operational Decision-Making in Iskandar Malaysia: A Qualitative In-Depth Interview Study
Authors: Zanudin K , Ngah I , Misnan S H , Bidin Z A 
Published: October 2022

Abstract
This study aimed to evaluate the effectiveness of community participation in planning and operational decision-making in Iskandar Malaysia. Iskandar Malaysia region consists of four local planning authorities responsible for planning and managing the spatial development in the region. Conceptually, effective community participation helps the local planning authority make a better decision, hence providing a sustainable and quality living environment. Therefore, the question raised is, “To what extent does the current community participation process offers a genuine opportunity to the community to incorporate their interest in the planning and operational decisions? The study employed in-depth interviews to gather insight of the phenomenon from various key actors to address the question. Following the 43 interviews performed, it is suggested that the effectiveness of community participation; and the incorporation of community interest in Iskandar Malaysia are substantially influenced by the functional variables like a collaboration between stakeholders, community’s access to information and process; and intergovernmental relationship in planning. Structural and cultural variables include the skill and professionalism of public planners, capability to influence, public awareness and knowledge, and community’s representation.