bluuebunny/crossref_metadata_2025_split huggingface dataset:
Time-resolved spectroscopy of thioflavin T solutions: Asynchronous optical sampling method with two frequency-upconverted mode-locked lasers
Authors: Han Noh Soo , Kim JunWoo , Yoon Tai Hyun , Cho Minhaeng 
Published: January 2022

We carried out transient absorption spectroscopy of thioflavin T (ThT) molecules in various solvents employing an asynchronous optical sampling (ASOPS) scheme with dual synchronized and frequency up-converted mode-lock lasers in the near UV (NUV) spectral region. We developed a pair of synchronized femtosecond lasers with tunable center wavelengths ranging from 380 to 430 nm and spectral bandwidths of 30 nm. As a proof-of-principle experiment, we measured interferometrically detected time and frequency-resolved pump–probe signals of ThT in various solvents to study the twisted intramolecular charge transfer process of photo-excited ThT molecules. Both single-color NUV-NUV and two-color NUV-near IR (NIR) pump–probe measurements reveal that the vibronic coupling strengths of two vibrational modes with frequencies of 214 and 526 cm−1 in the excited state of ThT are reduced when ThT is dissolved in a chlorine-containing solvent, e.g., chloroform. We confirm theoretically that these vibrational modes have relatively high electric dipole moments in the excited state. As a result, the intramolecular charge transfer process of ThT in chloroform, which is driven by the solvation process of surrounding polar solvent molecules, could occur less efficiently, which results in an increase in the fluorescence quantum yield. Here, we demonstrate that the NUV-NUV and NUV-NIR ASOPS-transient absorption could be useful techniques for studying ultrafast photochemical reactions in condensed phases.
Reaction barriers on non-conducting surfaces beyond periodic local MP2: Diffusion of hydrogen on α-Al2O3(0001) as a test case
Authors: Mullan Thomas , Maschio Lorenzo , Saalfrank Peter , Usvyat Denis 
Published: January 2022

The quest for “chemical accuracy” is becoming more and more demanded in the field of structure and kinetics of molecules at solid surfaces. In this paper, as an example, we focus on the barrier for hydrogen diffusion on a α-Al2O3(0001) surface, aiming for a couple cluster singles, doubles, and perturbative triples [CCSD(T)]-level benchmark. We employ the density functional theory (DFT) optimized minimum and transition state structures reported by Heiden, Usvyat, and Saalfrank [J. Phys. Chem. C 123, 6675 (2019)]. The barrier is first evaluated at the periodic Hartree–Fock and local Møller–Plesset second-order perturbation (MP2) level of theory. The possible sources of errors are then analyzed, which includes basis set incompleteness error, frozen core, density fitting, local approximation errors, as well as the MP2 method error. Using periodic and embedded fragment models, corrections to these errors are evaluated. In particular, two corrections are found to be non-negligible (both from the chemical accuracy perspective and at the scale of the barrier value of 0.72 eV): the correction to the frozen core-approximation of 0.06 eV and the CCSD(T) correction of 0.07 eV. Our correlated wave function results are compared to barriers obtained from DFT. Among the tested DFT functionals, the best performing for this barrier is B3LYP-D3.
CD81 costimulation skews CAR transduction toward naive T cells
Authors: Schultz Liora M. , Czerwinski Debra K. , Levy Ronald , Levy Shoshana 
Published: January 2022

SignificanceChimeric antigen receptors (CARs) are engineered, artificial T cell receptors that can redirect cytotoxic immune T cells to eliminate cancer. Previous reports describe the benefit of less differentiated naive T cell subtypes for the purpose of CAR therapy. Here we test CD81, a T cell costimulator that preferentially activates naive T cells, for CAR engineering. We show that CD81 costimulation of naive T cells prior to CAR transduction can lead to enhanced CAR expression in this T cell subset.
A case of convergent evolution: Several viral and bacterial pathogens hijack RSK kinases through a common linear motif
Authors: Sorgeloos Frédéric , Peeters Michael , Hayashi Yohei , Borghese Fabian , Capelli Nicolas , Drappier Melissa , Cesaro Teresa , Colau Didier , Stroobant Vincent , Vertommen Didier , de Bodt Grégory , Messe Stéphane , Forné Ignasi , Mueller-Planitz Felix , Collet Jean-François , Michiels Thomas 
Published: January 2022

Significance
Successful microbial infections typically involve the subversion of host immune pathways by pathogen-specific virulence factors. Here, we uncovered that viruses and bacteria independently evolved effectors targeting the same conserved loop of the mitogen-activated protein kinase (MAPK) p90-ribosomal S6-kinases (RSKs). Kinase usurpation relies on a previously unidentified short linear motif (SLiM) shared by these virulence factors. Mechanistically, RSK kinase binding prevents its dephosphorylation, thus promoting its phosphorylating activity. Remarkably, while viruses and bacteria evolved an identical mechanism of kinase activation, downstream effect diverged, effectively disarming different arms of the immune system according to their own need. This is a prominent illustration of trans-kingdom convergent evolution across microbial pathogens to usurp key signaling kinases.
Yinbian yanyu in twentieth-century China
Authors: Dai Yun-fang 
Published: January 2022

Abstract
The blended concept of translaboration has received considerable attention since 2015 when it was introduced by Alexa Alfer and colleagues. Yinbian yanyu [An English Poet Reciting from Afar], Lin Shu and Wei Yi’s collaborative translation of Charles and Mary Lamb’s Tales from Shakespeare, is a typical product of translaboration in twentieth-century China. Following a social historiographical path, this article seeks to identify contributions of the various stakeholders who participated in the production of Yinbian yanyu as well as its reception. By exploring what role translaboration played in the success of this translation, this article aims to present a more comprehensive view of translaboration as a concept and its applicability as an interdisciplinary tool.
Private Land, Public Interest: Securing Community Access to Private Lands for Mountain Biking and Amenity Migration in Canada
Authors: Wahl Jeff , Parker Pete 
Published: January 2022

Abstract
In order to support diversified forms of economic and community development, rural communities are increasingly investing in recreational opportunities on neighbouring lands, including agri-tourism and mountain resort development. However, in communities where significant proportions of peripheral land holdings are privately owned, opportunities for recreational land access and development are restricted or threatened. The Village of Cumberland, located on Vancouver Island, British Columbia, is home to a premier network of mountain biking trails developed by local users on a mix of both public recreational and privately owned industrial land. Without the existence of a formalized land use agreement between local public, private and not-for-profit land interests, the value of Cumberland’s mountain biking trail network cannot be wholly realized. This case study details the collaborative land use management partnership that has been developed in Cumberland in order to support economic and community development through amenity migration and the promotion of recreational mountain biking. Through sharing the costs and benefits of managing private land use, Cumberland’s multi-sector stakeholders have ensured that their individual strengths are utilized and unique interests are addressed.

Information

Vancouver Island University World Leisure Centre of Excellence Main image: Burns Lake bike trails By Britcruise - Own work, CC BY-SA 3.0,
https://commons.wikimedia.org/w/index.php?curid=15729806

© Jeff Wahl and Pete Parker 2015
Electron collision studies on the

CH2+

molecular ion
Authors: Chakrabarti K , Mezei J Zs , Schneider I F , Tennyson J 
Published: January 2022

Abstract
Calculations are performed for electron collision with the methylene molecular ion

C
H

2

+

in its bent equilibrium geometry, with the goal of obtaining cross sections for electron impact excitation and dissociation. The polyatomic version of the UK molecular R-matrix codes was used to perform an initial configuration-interaction calculation on the doublet and quartet states of the

C
H

2

+

ion. Subsequently, scattering calculations are performed to obtain electron impact electronic excitation and dissociation cross sections and, additionally, the bound states of the CH2 molecule and Feshbach resonances in the e-

C
H

2

+

system.
Numerical characterization of the breakdown process of dc-driven micro-discharges sustained by thermionic emission
Authors: Zhong Yujie , Wu Hao , Li Xiandi , Gao Jiamao , Jiang Wei , Zhang Ya , Lapenta Giovanni 
Published: January 2022

Abstract
Because of the larger surface-area-to-volume ratio, micro-discharges can be sustained by surface emission processes. If the cathode is heated, a micro-discharge can be sustained mainly by thermionic emission. However, we still know little about how this kind of plasma is ignited and sustained. In order to explore the breakdown process of dc-driven micro-discharge sustained by thermionic emission, a one-dimensional implicit particle-in-cell/Monte Carlo collision method is adopted, coupled with the external circuit and thermionic emission model. The breakdown process of micro-discharge lasts about 8

μ

s

, and this process can be roughly divided into two phases, i.e. pre-breakdown and breakdown phase. The dynamic plasma parameters during the evolution process are analyzed, such as particle density, electron energy distribution function, electric potential, average particle temperature, and particle current density. The plasma electrical characteristics as well as the article and power balance, are also presented to show the evolutionary features of the whole gas breakdown process.
Improved performance of IT-SOFC by negative thermal expansion Sm0.85Zn0.15MnO3 addition in Ba0.5Sr0.5Fe0.8Cu0.1Ti0.1O3−δ
cathode
Authors: Jia Xusheng , Lu Fei , Liu Kang , Han Mingkang , Su Jinrui , He Hao , Cai Bin 
Published: January 2022

Abstract
To improve performance of intermediate temperature solid oxide fuel cells (IT-SOFCs), the negative thermal expansion (NTE) material Sm0.85Zn0.15MnO3 (SZM) is introduced in Ba0.5Sr0.5Fe0.8Cu0.1Ti0.1O3−δ
(BSFCT) cathode. XRD results indicate that BSFCT, SZM and Ce0.8Sm0.2O2−δ
(SDC) oxides have good chemical compatibility up to 1173 K. The average linear thermal expansion coefficient of BSFCT–xSZM (x = 0, 10, 20 and 30 wt.%) decreases markedly from 29.2 × 10−6 K−1 for x = 0 wt.% to 15.6 × 10−6 K−1 for x = 30 wt.%. The electrochemical performance of single cells with configuration of NiO–BZCY|SDC|BSFCT–xSZM is comparatively investigated in the 773–973 K. The best performance is observed for x = 20 wt.%, which should be caused by the balance between thermal matching of cathode/electrolyte layers and oxygen reduction reaction activity of composite cathodes. The corresponding peak power density in the 773–973 K is 136–918 mW cm−2, which is 249%–64% higher than that (39–559 mW cm−2) with single BSFCT cathode. Due to the existence of electron blocking layer at anode/electrolyte interface, the open circuit voltage of all cells is higher than 1.0 V. In short, the introduction of NTE oxide in conventional cathode materials may provide an effective strategy to enhance the performance of IT-SOFCs with electron blocking layer.
Quantum algorithm for credit valuation adjustments
Authors: Alcazar Javier , Cadarso Andrea , Katabarwa Amara , Mauri Marta , Peropadre Borja , Wang Guoming , Cao Yudong 
Published: January 2022

Abstract
Quantum mechanics is well known to accelerate statistical sampling processes over classical techniques. In quantitative finance, statistical samplings arise broadly in many use cases. Here we focus on a particular one of such use cases, credit valuation adjustment (CVA), and identify opportunities and challenges towards quantum advantage for practical instances. To build a NISQ-friendly quantum circuit able to solve such problem, we draw on various heuristics that indicate the potential for significant improvement over well-known techniques such as reversible logical circuit synthesis. In minimizing the resource requirements for amplitude amplification while maximizing the speedup gained from the quantum coherence of a noisy device, we adopt a recently developed Bayesian variant of quantum amplitude estimation using engineered likelihood functions. We perform numerical analyses to characterize the prospect of quantum speedup in concrete CVA instances over classical Monte Carlo simulations.
Simulation of photomultiplier tube malfunction and its effect on SPECT imaging system
Authors: Oktaviana A T , Meireni M , Fahmi K 
Published: January 2022

Abstract
Ring artifact appears on the image from SPECT (Single Photon Emission Computed Tomography) imaging system is related to the uniformity. Generally, ring artifacts arose due to the poor performance of the photomultiplier tubes (PMT) in the gamma camera. If one of the PMT cannot perform optimally, defects known as ring artifacts on the image will occur. Detecting the position of the PMT malfunction is a challenge. To study the detection of ring artifacts due to PMT malfunction, artifact reconstruction was conducted by masking one of the PMT on the gamma camera using a copper sheet sizes 4 × 4 cm2 and thickness 1 mm. The position of the copper sheet was varied on the horizontal (x) and vertical (y) axes from the center of the detector. Jaszczak phantom without inserts (cold rods and sector cold rods) was used as an imaging object during acquisition. The image results obtained are ring artifact if the copper sheet is positioned on the (x,0), and half-ring artifact on the (0,y).
Teaching for conceptual change on Newton’s First Law
Authors: Syuhendri S 
Published: January 2022

Abstract
Teaching for conceptual change used to overcome misconceptions is a teaching that explicitly intended to facilitate students to have experience conceptual change learning. The Prerequisites for this learning are dissatisfaction, intelligibility, plausibility, and fruitfulness. It was implemented a teaching approach for this purpose on Newton’s First Law by a quasi experimental research method with pre-test and post-test control group design. The sample was selected based on convenience sampling. The instrument used was the Force Concept Inventory translated to Indonesian (Ind-FCI) for the domain of Newton’s First Law. The independent sample U-test by α = 0.05 was used to test the hypothesis. The effectiveness of shifting of students’ conceptual understandings toward the true concepts was determined by the N-gain value. The result was the mean N-gain of the experimental and control group were 49.15% and -3.85% respectively. There was a significant difference of increase in students’ conceptual understanding between those who were taught using the conceptual change approach and conventional one. Therefore, the teaching for conceptual change can be used to help students to reduce their misconceptions.
The use of magnetic data from swarm satellite as an efforts to estimate the potential of iron sand in the south Bawean Island area
Authors: Widyawati T , Susilo A , Wiyono  , Sunaryo  , Wardoyo A B P , Karimah  
Published: January 2022

Abstract
This study describes the use of magnetic data obtained through the Swarm satellite and launched by the Europan space agency to estimate iron sand deposits in the southern part of Bawean Island, Gresik Regency. Data processing in this study was carried out using Microsoft Excel and Oasis Montaj software. The interpretation process in this study was carried out in two stages, namely the qualitative interpretation stage using contour residual anomaly maps and quantitative interpretation using 2D and 3D modeling. The interpretation results show that the aeromagnetic data used can be used as initial data in estimating sand deposits in the southern part of Bawean Island, Gresik Regency.
Development of Low-Cost IoT based data acquisition system for real-time monitoring of volcanoes seismicity
Authors: Santoso D R , Maryanto S , Putro T , Priswanto A 
Published: January 2022

Abstract
This paper describes how to develop a low-cost data acquisition (DAQ) system for real-time remote monitoring of volcano seismicity. The DAQ system is developed based on IoT platform, consists of several module devices both hardware and software, and installed in two places called seismic-stations (SS) and observation-post (OP). In the implementation, the SS is placed on the body of the volcano meanwhile the OP is usually placed at a certain distance from the SS with more adequate electrical and communication facilities. In this design, the SS consists of seismic sensors and a digitizer, whereas the OP consists of a computer server and ADSL modem. Communication between SS and OP conducted by using a 5 GHz Wi-Fi telemetry system. At the OP, the data is processed to produce the form of digital seismograms, hypocentres, arrival times, and signal magnitudes in SAC or mini seed file formats by Earthworm software. Database server for cloud access is created using Winston Wave Server (WWS) and MySQL Data Base Management Systems (DBMS). The seismic data can be accessed in real time remotely by users using the SWARM application via website access.
Application of Uncertainty Analysis in Evaluation of Marine Engine Simulator
Authors: Shen Henglong , Cao Hui , Liang Shiyuan 
Published: January 2022

Abstract
Aiming at the problem of fuzziness and randomness in the evaluation process of marine engine simulator, a comprehensive evaluation model based on subjective and objective combination weighting method and cloud model method is established on the basis of single subjective and objective combination weighting method. Firstly, the combined weighting method is used to determine the comprehensive weight; Then, the standard cloud model is generated by using the cloud model method, and the digital characteristics of the evaluation cloud are obtained through the sample data and cloud computing rules. The digital characteristics of the evaluation cloud are obtained by the backward cloud generator and comprehensive weight; Finally, the similarity between the generated evaluation cloud and the standard cloud model is calculated, so as to evaluate the operation of the student marine engine simulator. The example analysis shows that the evaluation method can scientifically and reasonably evaluate the crew’s operation ability, and is feasible and effective.
Simulation and Design of Rising-Sun Anode Blocks for Magnetrons with Two Outputs of Energy
Authors: Churyumov Gennadiy , Qiu Shuang , Wang Nan-nan , Li Wei , Gerasimov Volodymyr , Frolova Tetyana 
Published: January 2022

Abstract
This paper presents the simulation results of the oscillation modes excited in the interaction space of an anode block of a magnetron and the azimuthal distributions of a longitudinal electric component of the RF field for either of the excited modes. Using CST code, there were considered available anode blocks with different configurations of the resonators: a rising sun anode block and a rising sun hole-and-slot anode block. The dispersion characteristics and distributions of the azimuthal components of the RF field for different geometrics of their cavities as applied to the X- and Ku-bands are given. The condition of acceptable separation both in frequency and in phase velocity between the operating JV/2 -mode (or 7T-mode) and neighboring (JV/2 - l)-mode has been determined. It suggested that the mechanism of forming the total RF field connects with possible interference of the RF fields excited severally in the resonant system consisting of the small and large cavities. The features design of the magnetrons with two energy outputs is presented, and their application in practice is determined. The results of the simulation are in good agreement with the experiment.
Simulation of Wide Band BAW Filter for N78 Application
Authors: Lv Lu , Shuai Yao , Luo Wenbo , Wu Chuangui , Zhang Wanli 
Published: January 2022

Abstract
Based on the requirements of large bandwidth filters for 5G communications, finite element models for material analysis and filter design are established. Characteristics of lithium niobate under different cut angle are simulated, and 36° Y cut lithium niobate is used in resonator with SiO2/Mo acoustic reflector. The influence of top electrode is evaluated and the area of the electrode is designed. A method of co-simulation using finite element model and modified Butterworth van Dyke model is introduced. A wide band filter with relative bandwidth of 10.1% is designed while the insertion loss is less than 2 dB, which can satisfy the requirement of N78 band.
Heart Sound Classification Method Based on Complete Empirical Mode Decomposition with Adaptive Noise Permutation Entropy
Authors: Wu Quanyu , Liu Meijun , Ding Sheng , Pan Lingjiao , Liu Xiaojie 
Published: January 2022

Abstract
This paper proposes a method of complete empirical modal decomposition with adaptive noise (CEEMDAN) arrangement entropy as a characteristic vector of heart sound signal and support vector machine (SVM) as a classifier to classify heart sounds. Firstly, PCG is decomposed into a few intrinsic mode functions (IMF) from high frequency to low frequency with CEEMDAN. Secondly, this method uses the correlation coefficient, energy factor and signal-to-noise ratio of the IMF and the original signal to optimize IMFs for Hilbert transform getting instantaneous frequency. Making use of the instantaneous frequency calculates arrangement entropy of each IMF. These arrangement entropy values form a feature vector. Finally, the extracted features were classified by help of support vector machine (SVM) with the mark of normal and abnormal heart sounds. The 100 heart sound samples from the 2016 PhysioNet /CinC Challenge were classified between normal and abnormal, and experimental results show that this method can effectively improve the recognition accuracy. The classification results of support vector machine reach 87%, and are better than Fisher discrimination methods.
The Application of Computer Technology in Mathematical Modeling
Authors: Hu Jing 
Published: January 2022

Abstract
Based on the analysis of mathematical modeling, this paper further expounds the application of computer technology in mathematical modeling. The specific role of computer technology mainly includes establishing mathematical modeling by using computer programming and using computer software. At present, the development of mathematical modeling cannot be separated from the support of computer technology. Through the specific analysis of computer technology model formula, the value of computer technology to mathematical modeling is clarified.
Flutter Suppression of Wind Turbine Blade based on Adaptive Fuzzy Sliding Mode Control
Authors: Wang Yingbo , Sun Changle , Sun Haipeng , Zhang Xiaolin , Liu Tingrui 
Published: January 2022

Abstract
Aiming at the divergent unstable vibration of wind turbine blades, an adaptive fuzzy sliding mode control algorithm based on sliding mode control is proposed to solve the classic flutter fracture failure problem of blades. The structural model is a typical blade section model based on spring-mass-damper, and the aeroelastic equation is obtained by combining the steady aerodynamic model suitable for pure pitch motion. The adaptive fuzzy sliding mode controller gives the pitch signal, and the second-order pitch actuator performs the pitch action to suppress flutter. The saturation function with variable boundary layer thickness is used instead of symbolic function, and the approach rate parameter is adjusted appropriately by fuzzy rules, so as to realize variable-parameter adaptive fuzzy sliding mode control. Simulation results show that, compared with the traditional sliding mode controller, the proposed control algorithm can not only suppress the classical flutter, but also effectively reduce the amplitude and frequency of chattering, and has good robustness.