bluuebunny/crossref_metadata_2025_split huggingface dataset:
Study on magnetic anisotropy and magnetocaloric effect of Co50V34Ga16 alloy
Authors: Wu Meng , Qian Yuetong , Liu Hongwei , Ni Zhenting , Chen Wei , Li Chunsheng , Si Xiaodong , Lin Jia , Li Zhe , Liu Yongsheng 
Published: December 2020

Abstract
This article reported the magnetocaloric properties and magnetic anisotropy of Co50V34Ga16 alloy with directional solidification direction. The Curie temperatures of this alloy in the three directions are 214 K, 214 K, and 216 K for a, b, and c, respectively. The maximum values of inverse magnetic entropy change below 205K under a magnetic field of 5 T are 1.0306 J kg−1·K−1, 1.155 J kg−1·K−1, and 1.1834 J kg−1·K−1, respectively. For the temperature higher than 205K, the maximum values of magnetic entropy change of the three directions under a magnetic field of 5 T are −1.2232 J kg−1·K−1, −1.2267 J kg−1·K−1, and −1.225 J kg−1·K−1, respectively. Moreover, the Landau theory is used to calculate the magnetic entropy change consistent with the experimental results of Maxwell equation.
Optical solutions to the Kundu-Mukherjee-Naskar equation: mathematical and graphical analysis with oblique wave propagation
Authors: Kumar Dipankar , Paul Gour Chandra , Biswas Tapos , Seadawy Aly R , Baowali Rakib , Kamal Mostafa , Rezazadeh Hadi 
Published: December 2020

Abstract
This paper retrieves some new optical solutions to the Kundu–Mukherjee–Naskar (KMN) equation in the context of nonlinear optical fiber communication systems. In this regard, a complex transformation is applied to the integer-order KMN equation for converting it to an ordinary differential equation (ODE). Then, the generalized Kudryashov method (gKM) and the new auxiliary equation method (NAEM) are employed to the ODE. As consequence, dark, bright, periodic

U

-shaped, and singular soliton solutions are explored to the ODE. The discrepancies between the results obtained in the present study and the previously obtained solutions through different methods are discussed. Furthermore, the time-fractional derivative and an oblique wave transformation in conjunction with the mentioned methods are executed to the fractional-order KMN equation. All obtained wave solutions are found to be new in terms of fractionality, wave obliqueness, and applied methods sense. The effects of obliqueness and fractionality on the attained solutions are demonstrated graphically along with its physical descriptions. It is found that the optical wave phenomena are changed with the increase of obliqueness as well as fractionality. It is also found that both the applied methods are suitable for acquiring new optical soliton features to the KMN equation with or without fractional and obliqueness conditions. However, the NAEM is capable of exploring more solutions of the considered equation over the gKM. Precisely, it can be assured that the utilized methods and the relevant transformation are powerful over the other methods. Therefore, the methods can be applied for further studies to explain the various physical phenomena arising in optical fiber communication systems.
Amplituhedra, and beyond
Authors: Ferro Livia , Łukowski Tomasz 
Published: December 2020

Abstract
This review is a primer on recently established geometric methods for observables in quantum field theories. The main emphasis is on amplituhedra, i.e. geometries encoding scattering amplitudes for a variety of theories. These pertain to a broader family of geometries called positive geometries, whose basics we review. We also describe other members of this family that are associated with different physical quantities and briefly consider the most recent developments related to positive geometries. Finally, we discuss the main open problems in the field. This is a Topical Review invited by Journal of Physics A: Mathematical and Theoretical.
System Integration of Urban Agglomerations and Haze Governance in China
Authors: Du Cong , Liang Changyi , Liu Xiuyan 
Published: December 2020

Abstract
It is urgent to explore the path of urban haze governance, and regional integration is a feasible route. This paper uses the characteristics of urban agglomeration integration and PM2.5 spatial distribution raster data to investigate the impact of urban agglomeration institutional integration on haze pollution in Chinese cities. Improving the integration of urban agglomeration systems has a significant inhibitory effect on urban haze pollution, and from a numerical point of view, for every 1% increase in the level of urban agglomeration integration, the average urban haze concentration will drop by 0.08%-0.10%. The policy enlightenment of this paper is that the government should accelerate the integration of urban agglomeration systems, strengthen cooperation in environmental protection between regions, to promote urban haze reduction.
Research on safety culture development in urban community
Authors: Wang Jian , Ma Yingnan , Zheng Yun , Lyu Ziyang 
Published: December 2020

Abstract
The research scope of safety culture development in urban community is urban community. The purpose of this study is to further improve the safety atmosphere of urban communities, reduce the safety risk of urban community, and ensure the harmonious and happy life of residents. This paper discusses the content and mode of the safety culture development in urban community, and puts forward the promotion mechanism of the safety culture development in urban community. This study is of great significance to enhance the ability of urban community security and risk prevention and control, enhance the sense of access, happiness and security of residents, and ensure the safety, harmony and sustainable development of the city.
Social benefit assessment of urban utility tunnels planned in unbuilt new area: a case study of Xiong’an New Area
Authors: Zhang Ziyun , Zhang Hui , Ma Chenxiao 
Published: December 2020

Abstract
Urban utility tunnels (UUTs) have the social benefit of providing careful management and keeping maintenance and repair work underground, avoiding causing disruption or damage to the aboveground environment which is always the case with directly buried pipelines. Previous studies have developed several methods for valuating those benefits with high demand on data and field surveys. Problems therefore arise when UUTs are planned to be built in unbuilt new areas where there is a lack of data required and practicality in doing surveys. This paper provides adapted valuation methods and instructions for calculating social benefits of UUTs under this circumstance, by taking the UUT project in Xiong’an New Area, China as an example. Though bearing inevitable uncertainties, the method is useful for making a quick and workable estimation. Some suggestion is then given on further improvement and development.
Prediction of Metro Short-term Entry Flow Based on Passenger Flow Characteristic Analysis
Authors: Zhao Shuzhi , Zhang Chongyu , Liu Huasheng 
Published: December 2020

Abstract
Prediction of short-term incoming passenger flow at metro stations is of great significance to the stable operation of Metro networks. Taking AFC data of Chengdu Metro as data source, based on Stochastic Forest model, support vector machine regression model and neural network model in machine learning method, this paper makes short-term prediction of metro entry flow and comparative analysis of three models. Metro stations are divided into four types according to the passenger flow characteristics: residential type, commercial type, business type and terminal type. Three models are trained in workdays and weekends conditions for different types of stations. The average absolute percentage error (MAPE) and root mean square error (RMSE) were used to evaluate the accuracy and stability of the prediction results. The results show that BP neural network has the best comprehensive performance and random forest has better prediction accuracy for stations with strong periodicity.
An Empirical Analysis of the Impact of Urbanization on the Sharing Economy of 100 Cities in China
Authors: Huang Lu , Li Yuan , Zhang Huaping , Yan Jinjiang 
Published: December 2020

Abstract
The sharing economy is an urban phenomenon. The process of urbanization promotes the development of sharing economy. Taking sharing travel as an example, this paper constructs an econometric model of the impact of urbanization on the development of sharing economy, and conducts an empirical study based on the relevant data of 100 large, medium and small cities in China. The empirical analyses reveal that the level of urbanization, urban trust, urban Internet technology and urban innovation have significant positive correlations with the development of sharing economy. After controlling the influence of other factors in the model, for every 1% increase in urbanization level, the development level of urban sharing economy increases by 0.31%; for every 1% increase in the level of urban trust, the development level of urban sharing economy increases by 4.54%. Therefore, in order to promote the development of urban sharing economy, it is necessary for the government to strengthen the urbanization construction and improve the level of urbanization. In addition, increasing the level of urban social trust also provides new ideas for the development of sharing economy.
Process synthesis and optimization of SiO2/PVDF mixed-matrix membrane for oil-water emulsion separation
Authors: Teow Y H , Solihuddin M I 
Published: December 2020

Abstract
In this study, and optimized silicon oxide (SiO2)/polyvinyledene fluoride (PVDF) mixed-matrix membrane formulation was developed using response surface methodology (RSM). SiO2 nanoparticles (NPs) concentration (1-3%), silane solution concentration (1:100-3:100 ratio of silane to ethanol) and duration of silanization process (240-600 s) were identified as the factor in affecting the membrane performance, both permeate flux and rejection. The synthesized membranes were characterized in terms of membrane pore size, porosity, surface roughness, and surface wettability. The optimum SiO2/PVDF mixed-matrix membrane formulation was obtained with 2.9% SiO2 NPs concentration, 2.22:100 ratio of silane to ethanol, with 496 seconds of salination process duration. The optimum SiO2/PVDF mixed-matrix membrane formulation exhibited an extraordinarily high oil droplets rejection (92.01%) with 27.57 L/m2 h of permeate flux at 1 bar of operating pressure.
Experimental study on clogging and water quality change during artificial recharge
Authors: Huang X D , Li W 
Published: December 2020

Abstract
In this paper, an experimental sand column was used to investigate the clogging process and water quality changes simultaneously during artificial recharge. Clogging was described quantitatively according to the changes of hydraulic conductivity, whilst several important water quality parameters, such as SS, total bacterial count, DO, TOC, total nitrogen, total phosphorus were measured at regular time intervals during recharge. After 80 hours of continuous recharge, the hydraulic conductivity of the upper column (10-15cm) and the lower(15-55cm) decreased from 1.23×10−4m/s to 9.84×10−5m/s and from 1.23×10−4m/s to 1.06×10−4m/s, respectively. This was thought to be due to physical clogging by suspended solids and then biological clogging by biomass accumulation along the columns. The sand column had significant self-purification effect on suspended matter, bacteria, TOC, permanganate index, total nitrogen, total phosphorus, copper, etc. The filtration and adsorption effect of the upper column were much stronger than that of the lower, so the clogging of the upper was more severe. The results of this study will provide technical support for the implementation of large-scale artificial recharge in the Liaolan groundwater funnel area of Qingdao.
Analysis of influence of mesh partition on Mike21 calculation in flood impact assessment
Authors: Zuo J , Zhang H X , Deng S , Gu P , Lian L L 
Published: December 2020

Abstract
In order to study the impact of different grid mesh sizes on the calculation results of the model in the analysis of flood impact assessment, this paper takes the newly constructed bridge between the Niushou and Xiangyang sections of the Hanjiang River as an example. It simulates the influences of bridge construction on river flow under the six schemes of setting the bridge pier as a solid boundary, no internal mesh generation, and not participating in numerical calculation, and dividing the bridge pier local mesh size into 2m, 4m, 6m, 8m, and 10m. The results show that different grid sizes in the project have an effect on the river water level and the range of water level changes. The smaller the local grid size of the project relative to the building size, the greater the maximum water level change value, and the closer it is to the calculated value of the bridge pier as a solid boundary. By adding piers module of the model to generalize the project, the water level change in the model results is significantly smaller. Under the same water level change conditions, the larger the mesh size, the greater the scope of the project. For projects located in important river sections with significant water blocking effects, it is recommended that buildings be used as solid boundaries without participating in generating meshes or modifying local terrain to simulate the effects of water flow. The results are more in line with actual conditions.
Evaluation of Liao River estuary with cumulative and sudden risk assessment methods
Authors: Shi E , Shang Y C , Li Y F , Zhang M 
Published: December 2020

Abstract
In order to strengthen the management of water environment, cumulative and sudden risks were integrated into risk assessment of water environment. Analytic hierarchy process (AHP) was used to empower the index system. The cumulative and sudden risks of water environment were divided into five levels. The zoning matrix of risk level was applied to evaluate Liao River estuary area. The evaluation results were basically consistent with the field survey results. Although the cumulative risk of Liaoning province in 2011-2017 showed a downward trend, it is still in a high-risk state. The investment in water treatment, the number of water treatment equipment and water quality were the major factors that affect the cumulative risk, and the critical enterprises around the Liao River estuary are the main factors that affect the sudden risk. The above indicators were controlled can reduce the water environment risk.
Efficient second harmonic generation in lithium niobate on insulator waveguides and its pitfalls
Authors: Boes Andreas , Chang Lin , Nguyen Thach , Ren Guanghui , Bowers John , Mitchell Arnan 
Published: December 2020

Abstract
In this contribution, we investigate second harmonic generation (SHG) in periodically poled lithium niobate (LN) on insulator waveguides and examine under what conditions such waveguides suffer from undesirable loss due to lateral leakage. We investigate the lateral leakage losses in X-cut and Z-cut LN for the fundamental (1550 nm) and second harmonic (775 nm) wavelengths. Our findings show that Z-cut lithium niobate on insulator (LNOI) is more likely to suffer from lateral leakage and has a lower SHG efficiency. We further provide design guidelines for highly efficient nonlinear optical waveguides in LNOI and show how lateral leakage can be avoided.
Prevalence and Determinants of Masked Hypertension in Nigeria: The REMAH Study
Authors: Odili Augustine N , Danladi Benjamin , Chori Babangida S , Oshaju Henry , Nwakile Peter C , Okoye Innocent C , Abdullahi Umar , Nwegbu Maxwell M , Zawaya Kefas , Essien Ime , Sada Kabiru , Ogedengbe John O , Aje Akinyemi , Isiguzo Godsent C 
Published: December 2020

Abstract

Background
Estimating the burden of hypertension in Nigeria hitherto relied on clinic blood pressure (BP) measurement alone. This excludes individuals with masked hypertension (MH), i.e., normotensive clinic but hypertensive out-of-clinic BP.

Methods
In a nationally representative sample of adult Nigerians, we obtained clinic BP using auscultatory method and out-of-clinic BP by self-measured home BP with semi-automated oscillometric device. Clinic BP was average of 5 consecutive measurements and home BP was average of 3 days duplicate morning and evening readings. MH was clinic BP &lt;140 mm Hg systolic and 90 mm Hg diastolic and home BP ≥135 mm Hg systolic and/or 85 mm Hg diastolic.

Results
Among 933 participants, the prevalence of sustained hypertension, MH, and white-coat hypertension was 28.3%, 7.9%, and 11.9%, respectively. Among subjects whose clinic BP were in the normotensive range (n = 558), the prevalence of MH was 13%; 12% among untreated and 27% among treated individuals. The mutually adjusted odds ratios of having MH among all participants with normotensive clinic BP were 1.33 (95% confidence interval, 1.10–1.60) for a 10-year higher age, 1.59 (1.09–2.40) for a 10 mm Hg increment in systolic clinic BP, and 1.16 (1.08–1.28) for a 10 mg/dl higher random blood glucose. The corresponding estimates in the untreated population were 1.24 (1.03–1.51), 1.56 (1.04–2.44), and 1.16 (1.08–1.29), respectively.

Conclusions
MH is common in Nigeria and increasing age, clinic systolic BP, and random blood glucose are the risk factors.
Nation, Diaspora, and Asian American Literature
Authors: Lim Jeehyun 
Published: December 2020

AbstractRead together, Patricia Chu’s Where I have Never Been (2019), Jinah Kim’s Postcolonial Grief (2019), Sze Wei Ang’s The State of Race (2019), and Janna Odabas’s The Ghosts Within (2018) allow for a review of the state and meaning of diaspora and diasporic frames of analysis in Asian American literary and cultural criticism. Approaching these books through the 1990s debate on minority nationalism in Asian American studies shows one prominent direction that critical engagements with transnationalism have taken. While postcolonialism’s place in the 1990s debate on transnationalism and Asian America was tenuous at best, these books suggest that it has become a crucial part of envisioning the critical work diasporic Asian American culture can do. In these books, diasporic frames of analysis lead to recognizing Asian American culture as a site where the unresolved and unaccounted for violence of US nationalism and globalization surfaces and challenges to dominant ideas of race and nation appear. Both as method of inquiry and as historical understanding of twentieth-century US–Asian relations, postcolonialism in these books shows the critical potential of diaspora for Asian America.
Development and Initial Validation of the Perceptual Assessment of Memory (PASSOM): A Simulator Study
Authors: Koenitzer Justin C , Herron Janice E , Whitlow Jesse W , Barbuscak Catherine M , Patel Nitin R , Pletcher Ryan , Christensen Jerilyn 
Published: December 2020

Abstract

Objective
Performance validity tests (PVTs) are an integral component of neuropsychological assessment. There is a need for the development of more PVTs, especially those employing covert determinations. The aim of the present study was to provide initial validation of a new computerized PVT, the Perceptual Assessment of Memory (PASSOM).

Method
Participants were 58 undergraduate students randomly assigned to a simulator (SIM) or control (CON) group. All participants were provided written instructions for their role prior to testing and were administered the PASSOM as part of a brief battery of neurocognitive tests. Indices of interest included response accuracy for Trials 1 and 2, and total errors across Trials, as well as response time (RT) for Trials 1 and 2, and total RT for both Trials.

Results
The SIM group produced significantly more errors than the CON group for Trials 1 and 2, and committed more total errors across trials. Significantly longer response latencies were found for the SIM group compared to the CON group for all RT indices examined. Linear regression modeling indicated excellent group classification for all indices studied, with areas under the curve ranging from 0.92 to 0.95. Sensitivity and specificity rates were good for several cut scores across all of the accuracy and RT indices, and sensitivity improved greatly by combining RT cut scores with the more traditional accuracy cut scores.

Conclusion
Findings demonstrate the ability of the PASSOM to distinguish individuals instructed to feign cognitive impairment from those told to perform to the best of their ability.
Chronology of Practice: Chinese Practice in Private International Law in 2019
Authors: He Qisheng 
Published: December 2020

Abstract
This survey contains materials reflecting the practice of Chinese private international law in 2019. First, this paper describes the judiciary’s caseload: Chinese courts decided some 17,000 foreign-related civil and commercial cases, 16,000 maritime cases and 9,648 requests for judicial assistance in 2019. Regarding changes in the statutory framework of private international law, four legislative acts, one set of Regulations and six Supreme People’s Court (SPC) Judicial Interpretations were adopted or amended in 2019 on investment contracts, action preservation in intellectual property, punitive damages, etc. Second, eight typical cases on jurisdictional issues are selected, including jurisdiction clauses, parallel proceedings, and res judicata. Third, seven new representative cases on choice of law relating, in particular, to international transport, force majeure, gambling debts and public order, are examined. Fourth, five cases on the recognition and enforcement of foreign judgments and one SPC Opinion in favour of presumed reciprocity are briefly examined. Finally, this paper also covers seven key cases which reflect the latest development in Chinese private international law on other procedural issues, such as service of process abroad and authentication, and three cases on international arbitration (including the first decision rendered by the China International Commercial Court).
Cefiderocol for the Treatment of Adult and Pediatric Patients With Cystic Fibrosis and Achromobacter xylosoxidans Infections
Authors: Warner Nathaniel C , Bartelt Luther A , Lachiewicz Anne M , Tompkins Kathleen M , Miller Melissa B , Alby Kevin , Jones Melissa B , Carr Amy L , Alexander Jose , Gainey Andrew B , Daniels Robert , Burch Anna-Kathryn , Brown David E , Brownstein Michael J , Cheema Faiqa , Linder Kristin E , Shields Ryan K , Longworth Sarah , van Duin David 
Published: December 2020

Abstract
Treatment options for Achromobacter xylosoxidans are limited. Eight cystic fibrosis patients with A. xylosoxidans were treated with 12 cefiderocol courses. Pretreatment in vitro resistance was seen in 3 of 8 cases. Clinical response occurred after 11 of 12 treatment courses. However, microbiologic relapse was observed after 11 of 12 treatment courses, notably without emergence of resistance.