bluuebunny/crossref_metadata_2025_split huggingface dataset:
Research on the Relevance of China’s Construction Industry, Real Estate Industry and Fixed Assets Investment
Authors: Liu Miaomiao , Chen Fan , Guo Kelan 
Published: December 2019

Abstract
The close relationship among construction industry, real estate industry and fixed asset investment is a hot issue of concern to relevant scholars at home and abroad. Based on the statistical data of China Statistical Yearbook 2000-2018 and previous scholars’ research, this paper quantitatively describes the relationship among the three. Firstly, the index system among the three is constructed, and the reliability and validity test and factor analysis are performed by SPSS25.0 to ensure the scientificity of the analysis. Then the VAR model is constructed, and the ADF test, J test, second-order differential root test and second-order differential variance decompositionare are performed by using EVIEWS9.0. The results show that the fixed assets investment plays a more important role in the promotion of construction industry than the real estate industry; but the development of the construction industry and the real estate industry still depends on its internal forces. Based on the above research, the author puts forward suggestions for enterprise development. This paper provide an important reference for further exploration of enterprise relevance and enterprise management and development.
Emergency safety evacuation decision based on dynamic Gaussian Bayesian network
Authors: Feng Junning , Wang Qifeng 
Published: December 2019

Abstract
Emergency incidents in public areas with high pedestrian density may lead to chaos and congestion, which threaten the safety of pedestrians. Therefore, management departments need to make rapid and accurate evacuation decisions. The evacuation decision-making model proposed in this paper consists of three parts: pedestrian distribution prediction model, pedestrian flow calculation model and path situation and feedback correction model. Considering the dynamic, random and uncertain characteristics of pedestrian distribution on the road network, this paper uses dynamic Gaussian Bayesian network to predict pedestrian distribution. Several classical pedestrian flow velocity calculation formulas are introduced as pedestrian flow calculation model, including the Furin model, Tangming model and Liu Dongdong model. Path length, evacuation time and pedestrian density are used as three factors to evaluate the route situation. Two feedback correction methods are proposed to guide pedestrians flow reasonably. They are route planning method and diversion rate method. Taking Wuhan Guanggu Metro Station as an example, the simulation results in GENIE show that the evacuation decision model in this paper can effectively evacuate pedestrians and reduce risk.
Analysis on the Key Problems of Chinese Cotton Full Mechanization Based on System Engineering Theory
Authors: Yue Hui , Sun Chenghao 
Published: December 2019

Abstract
Cotton is the main economic crop in China. The whole process of mechanized cotton production is the decisive factor to ensure the stable and healthy development of China’s cotton industry. In recent years, the willingness to grow cotton has declined due to labor shortages. Based on the current situation of mechanized production in China, this paper analyzes the problems existing in the six major stages of cotton production and draws the key technical factors (technical problems, production problems, agronomic problems) that restrict the whole process of mechanization in China. Based on the theory of system engineering, combined with the development direction of national agricultural mechanization, it is proposed that the large-scale business model, systematic engineering design, and cotton industry chain integration are the main directions for solving problems, which is of great significance to the advancement of agricultural modernization and the realization of smart agriculture.
Spatial Changes of Urban Housing Prices: Analysis of Traffic Costs Based on Taiyuan
Authors: Zhao Huaping , Wei Xu 
Published: December 2019

Abstract
In the modern society, traffic costs have become a key factor for residents to choose housing with increasing congestion for urbans. The interaction between housing prices and traffic costs is getting closer. The convenience of traffic and the distance from the schools, hospitals and commercial centres will affect the traffic costs of residents, which in turn will affect the housing prices in urban. In terms of traffic convenience, this paper not only uses the number of bus stations within 1km to measure the bus convenience of housing, but also uses the number of lanes adjacent to the main street to measure the accessibility of street frontage. In terms of medical facilities, while considering the number of surrounding hospitals, the quality of hospitals is distinguished, which makes the traffic convenience of housing and the level measurement of medical facilities more comprehensive and the research results more reasonable and reliable. Through the empirical study of Taiyuan, Shanxi Province, the results show that the traffic costs can explain the price level of 41.7%. For each additional bus station near the residential area, the housing price will increase by 2.1%. For every street number, the housing price will increase by 1.3%. The school will increase the housing price by 7.3%. The distance from the business circle will increase by 3.1% for 1km. For each third, second and first class hospital within 3km of the housing, the price will increase by -0.6%, 1% and 3.2%.
Study on the Operating Mechanism of Taobao Village Ecosystem from the Perspective of Information Management
Authors: Wang Liting , Zhang Hao 
Published: December 2019

Abstract
Taobao village ecosystem is the product of the development of information age. From the perspective of information management, it is of great significance to study the operation mechanism of Taobao village ecosystem for its sustainable development. According to the characteristics of online transactions and management needs of Taobao villages, the research framework of Taobao village ecosystem is constructed from the perspective of information management, and exploring the operation mechanism of taobao village ecosystem under information management, which can provide reference for entrepreneurs and the balanced development of Taobao village ecosystem. Establishing a perfect information management system, extracting valuable information effectively can promote the upgrading of ecosystem industry in Taobao village, and it will realize the healthy development of Taobao village ecosystem.
Research on the Improvement of Management and Control Ability of Large-scale Power Grid Enterprises under the Condition of Emerging Technologies
Authors: Zhang Yong , Jin Liu , Qian Tan 
Published: December 2019

Abstract
The new round of information technology revolution represented by Big data, Cloud computing, Mobile Internet, IOT, AI and national policies on technology development provide technology and policy environment for the application of emerging technologies in the collectivized management of power grid enterprises. This paper deeply analyzes the influence and function of emerging technologies on power grid enterprises, further explores the problems in the application of emerging technologies in power grid enterprises, and puts forward the direction and path for the improvement of the management and control ability of power grid enterprises by emerging technologies, which is to take digitalization as the basic policy and to advance orderly according to the path of “two fusion and four strengthening”.
Traditional Settlement Morphology from the Perspective of Thermodynamic Architecture Theory: Taking Two Villages in the Iberian Peninsula as Examples
Authors: He Meiting 
Published: December 2019

Abstract
The form of rural settlements is not determined by a single factor, but by various factors. With a particular focus on settlement morphology and natural energy, this study introduces thermodynamic architecture theory to discuss the relationship between rural settlement morphology and environmental energy, starting from the analysis of the relationship between rural settlement morphology and building density, building order and settlement boundary dispersion, trying to provide a reference for the updated design of traditional settlements. The first part of this paper explains the research method of settlement form based on thermodynamic architecture theory from the theoretical level trying to construct the analysis framework of settlement form typology based on energy concept. The second part introduces the coupling between thermodynamic energy concept and morphology from the methodological level. The relationship between the three energy correlation factors of intensity, order and dispersion and settlement morphology is studied. In this paper, two settlement cases are quantitatively analysed by simulation and mathematical analysis. In conclusion, it proposes a new perspective for the morphological analysis of rural settlements, which provides a feasible framework for further research on energy utilization and microclimate comfort of settlements. This study also provides a preliminary concept for the integration of the buildings type and thermodynamic study of vernacular architecture in the future.
The Origin and Development of Boxes in Sports Architecture
Authors: Mao Qiuju , Guo Siwen , Lin Dawei 
Published: December 2019

Abstract
Since the 1990s, under the pressure of marketing, the box was set up in the NBA (National Basketball Association) arena in the United States, which made the application of the box in the stadium popular. The study of boxes is of far-reaching significance for stadiums and gymnasiums. It not only improves the current situation of poor operation and low utilization rate of stadiums and gymnasiums, but also responds to the needs of consumers for the commerciality and entertainment of stadiums and gymnasiums.
Evaluation of the Relationship between the Transit Ridership and Accessibility Variables: A Case Study of the Bangkok Metro Stations
Authors: Thiri Kyaw Nyunt Khin , Wongchavalidkul Natachai 
Published: December 2019

Abstract
Many studies and planning projects related to Thailand metro system is now highly concentrating on the improvements of Transit-Oriented Development (TOD) and the feeder system to ensure smooth transferring for users traveling from their origins to destinations. Leaving off policies related measures, improvements that could immediately focus in order to enhance the smooth transfer services are infrastructure and land-use developments. This study evaluates relationships of accessibility variables, focused on service design and land-usages, and demand of metro ridership. The objective is to improve the understanding of what types of expanding infrastructures or land deployments that could help to support the metro system and encouraging more transit ridership. The existing Bangkok metro stations are the case study area for this research. Gathered data are transport services, roadway infrastructures, and land use. These data are available in the Geographic Information System format and ready to extract as testing variables at each station. Relationship between the number of transit ridership and variables form transport services, network connectivities, and land use are explore based on the correlation analysis. Results from the study found that the number of bus lines, bus stops, and railway stations are associated with the transit ridership, while there is no relationship between ridership demands and ferry services. Further for land-use perspective, the commercial, industrial, and mixed-used area have a significant influence on the ridership demand while there is no signal from the Residential area.
Effect of minor Zr on oxidation resistance and mechanical property of nickel-saving austenitic heat-resistant cast steel
Authors: Liu Tianlong , Lin Yingfei , Zheng Kaihong , Wang Haiyan , Zheng Zhibin 
Published: December 2019

Abstract
In order to study the effect of minor Zr on the oxidation resistance and the mechanical properties of nickel-saving austenitic heat-resistant cast steel, the oxidation resistance at 900 °C and the tensile properties at room temperature and at 900 °C of Zr-containing and Zr-free steels were carried out. The results showed that the addition of 0.011% Zr could slightly reduce the oxidation rate and improve the oxidation resistance of Zr-containing steel. In addition, the tensile properties of Zr-containing steel at room temperature and at 900 °C were significantly improved. Brittle fracture occurred in two experimental steels at both temperatures, and brittle characteristics appeared in the fractures.
Strengthening of β polymorph in PVDF/FLG and PVDF/GO nanocomposites
Authors: Islam Atif , Khan Ahmad Nawaz , Shakir M Fayzan , Islam Kashif 
Published: December 2019

Abstract
The nanocomposites of PVDF/FLG and PVDF/GO are prepared using the solution casting method for varying concentrations of FLG and GO from 0.1 to 1 wt% in PVDF matrix. The effect and dispersion of FLG and GO are observed with help of Scanning electron microscopy (SEM) and x-ray diffraction confirming the good dispersion of FLG and GO in the matrix. The samples are also characterized for thermal and mechanical properties using Differential scanning calorimetry (DSC) and universal testing machine (UTM). FLG and GO nanofillers seemed to increase the tensile strength from 10 MPa to 20 MPa and variation in crystallinity to get maximum output in terms of β phase which can be utilized for piezoelectric and pyroelectric behavior of PVDF polymer.
Effect of cation ratio on microstructure and optical absorbance of magnesium aluminate spinel
Authors: Halder R , Bandyopadhyay S 
Published: December 2019

Abstract
This work is pertaining to the synthesis of fine magnesium aluminate spinel (MgAl2O4) powders of varied trivalent:bivalent cation ratio along line of homogeneity of the solid solution (MgO. xAl2O3, x = 1, 1.25, 1.50, 1.75, and 2) via gel combustion method. Magnesium- and aluminum- nitrate were used as the oxidants in combustion reaction fuelled by urea in combination with stoichiometric formaldehyde solution acting as reductant. Synthesized powders were characterized in terms of microscopic analysis and optical absorbance measurements. The cation ratio, through a change in gel structure influences the nature of crystallization of the product, while on the other hand does not affect grain shapes and sizes. Distinct enhancement in both absorption intensity and the corresponding estimated energy band gap has been observed against increasing excess than stiochiometric alumina concentrations. Evaluated optical band gaps were widened in proportion to the Al: Mg ratio which may be attributed to Burstein-Moss effect in consequence of substitutional insertion of introduced Al3+ ions in spinel lattices.
Simulation of the Sb2Se3 solar cell with a hole transport layer
Authors: Li Zhen-Qi , Ni Ming , Feng Xiao-Dong 
Published: December 2019

Abstract
A model of the Sb2Se3 solar cell with a hole transport layer (HTL) has been investigated by solar cell capacitance simulator (SCAPS). The influence of different HTLs on device performance has been firstly analyzed, and CuO has been found to be the best HTL. Then, Sb2Se3 thickness, CuO thickness, the doping concentration of CuO, the hole mobility of CuO, the defect density of Sb2Se3 layer, the defect density at the CdS/Sb2Se3 interface, and the work function of metal electrode on device performance have been systematically studied. The optimum thicknesses of Sb2Se3 and CuO are 300 nm and 20 nm, respectively. To achieve ideal performance, the doping concentration of CuO should be more than 1019 cm−3, and its hole mobility should be over 1 cm2V−1 s−1. The defect densities in the Sb2Se3 layer and at the CdS/ Sb2Se3 interface play a critical role on device performance, both of which should be as low as 1013 cm−3 and 1014 cm−2, respectively. In addition, the work function of the metal electrode should be more than 4.8 eV to avoid formation of Schottky junction at the metal electrode interface. After optimization, a best efficiency of 23.18% can be achieved. Our simulation results provide valuable information to further improve the efficiency of Sb2Se3 solar cells in practice.
Cognitive trajectory in mild cognitive impairment due to primary age-related tauopathy
Authors: Teylan Merilee , Mock Charles , Gauthreaux Kathryn , Chen Yen-Chi , Chan Kwun C G , Hassenstab Jason , Besser Lilah M , Kukull Walter A , Crary John F 
Published: December 2019

Abstract
Primary age-related tauopathy is increasingly recognized as a separate neuropathological entity different from Alzheimer’s disease. Both share the neuropathological features of tau aggregates and neuronal loss in the temporal lobe, but primary age-related tauopathy lacks the requisite amyloid plaques central to Alzheimer’s disease. While both have similar clinical presentations, individuals with symptomatic primary age-related tauopathy are commonly of more advanced ages with milder cognitive dysfunction. Direct comparison of the neuropsychological trajectories of primary age-related tauopathy and Alzheimer’s disease has not been thoroughly evaluated and thus, our objective was to determine how cognitive decline differs longitudinally between these two conditions after the onset of clinical symptoms. Data were obtained from the National Alzheimer’s Coordinating Center on participants with mild cognitive impairment at baseline and either no neuritic plaques (i.e. primary age-related tauopathy) or moderate to frequent neuritic plaques (i.e. Alzheimer neuropathological change) at subsequent autopsy. For patients with Alzheimer’s disease and primary age-related tauopathy, we compared rates of decline in the sum of boxes score from the CDR® Dementia Staging Instrument and in five cognitive domains (episodic memory, attention/working memory, executive function, language/semantic memory, and global composite) using z-scores for neuropsychological tests that were calculated based on scores for participants with normal cognition. The differences in rates of change were tested using linear mixed-effects models accounting for clinical centre clustering and repeated measures by individual. Models were adjusted for sex, age, education, baseline test score, Braak stage, apolipoprotein ε4 (APOE ε4) carrier status, family history of cognitive impairment, and history of stroke, hypertension, or diabetes. We identified 578 participants with a global CDR of 0.5 (i.e. mild cognitive impairment) at baseline, 126 with primary age-related tauopathy and 452 with Alzheimer’s disease. Examining the difference in rates of change in CDR sum of boxes and in all domain scores, participants with Alzheimer’s disease had a significantly steeper decline after becoming clinically symptomatic than those with primary age-related tauopathy. This remained true after adjusting for covariates. The results of this analysis corroborate previous studies showing that primary age-related tauopathy has slower cognitive decline than Alzheimer’s disease across multiple neuropsychological domains, thus adding to the understanding of the neuropsychological burden in primary age-related tauopathy. The study provides further evidence to support the hypothesis that primary age-related tauopathy has distinct neuropathological and clinical features compared to Alzheimer’s disease.
Nutritional correlates of the overwintering and seaward migratory decisions and long-term survival of post-spawning Atlantic salmon
Authors: Bordeleau X , Hatcher B G , Denny S , Whoriskey F G , Patterson D A , Crossin G T 
Published: December 2019

Abstract
Despite the importance of iteroparity (i.e. repeated spawning) for the viability of Atlantic salmon populations, little is known about the factors influencing the migratory behaviour and survival prospect of post-spawned individuals (kelts). To test the hypothesis that post-spawning nutritional condition underlies differences in spatiotemporal aspects of the habitat use and survival of migrating Atlantic salmon kelts, we physiologically sampled and acoustically tagged 25 individuals from the Middle River, Nova Scotia in autumn 2015. Kelts were subsequently tracked within their natal river during the winter months, and as far as 650 km away along known migration pathways towards the Labrador Sea and Greenland. Some kelts were detected nearly 2 years later, upon their return to the natal river for repeat spawning. Overall, kelts in poor or depleted post-spawning nutritional state (i.e. low body condition index or plasma triglyceride level): (i) initiated down-river migration earlier than higher condition kelts; (ii) experienced higher overwinter mortality in the natal river; (iii) tended to spend greater time in the estuary before moving to sea and (iv) did not progress as far in the marine environment, with a reduced probability of future, repeat spawning. Our findings suggest that initial differences in post-spawning condition are carried through subsequent migratory stages, which can ultimately affect repeat-spawning potential. These results point to the importance of lipid storage and mobilisation in Atlantic salmon kelts for mediating post-spawning migratory behaviour and survival.
Photosynthetic regulation in seed heads and flag leaves of sagebrush-steppe bunchgrasses
Authors: Hamerlynck Erik P , Denton Elsie M , Davies Kirk W , Boyd Chad S 
Published: December 2019

AbstractNative sagebrush-steppe bunchgrass populations are threatened by the spread and dominance of exotic invasive annual grasses, in part due to low, episodic seed production. In contrast, the widespread exotic bunchgrass, crested wheatgrass, readily produces viable seed cohorts. The mechanisms underlying these differences are unclear. To address this, we measured seed head specific mass (g m−2) and net photosynthetic assimilation (Anet) as a function of internal [CO2] (A/Ci curves) in pre- and post-anthesis seed heads and flag leaves of crested wheatgrass and four native bunchgrasses to determine if differences in allocation and photosynthetic characteristics of seed heads was consistent with differential reproductive success. Crested wheatgrass seed heads had 2-fold greater specific mass compared to the native grasses, concurrent with greater CO2-saturated photosynthesis (Amax), mesophyll carboxylation efficiency (CE), and higher intrinsic water-use efficiency (WUEi; Anet/stomatal conductance (gs)), but with similar relative stomatal limitations to photosynthesis (RSL). Post-anthesis seed head Amax, CE, RSL and gs decreased in native grasses, while crested wheatgrass RSL decreased and CE increased dramatically, likely due to tighter coordination between seed head structural changes with stomatal and biochemical dynamics. Our results suggest native sagebrush-steppe bunchgrasses have greater stomatal and structural constraints to reproductive photosynthesis, while the exotic grass has evolved seed heads functionally similar to leaves. This study shows elucidating reproduction-related ecophysiological mechanisms provide understanding of plant attributes that underlie restoration success and could help guide the development of native plant materials with functional attributes needed to overcome demographic bottlenecks that limit their restoration into degraded sagebrush-steppe.