bluuebunny/crossref_metadata_2025_split huggingface dataset:
The association between maternal exposure to fine particulate matter (PM2.5) and gestational diabetes mellitus (GDM): a prospective birth cohort study in China
Authors: Chen Guimin , Sun Xiaoli , Wang Jiaqi , Dong Moran , Ye Yufeng , Liu Xin , Sun Jiufeng , Xiao Jianpeng , He Guanhao , Hu Jianxiong , Guo Lingchuan , Li Xing , Rong Zuhua , Zeng Weilin , Zhou He , Chen Dengzhou , Li Jiali , Ma Wenjun , Bartashevskyy Maksym , Wen Xiaozhong , Liu Tao 
Published: February 2021

Abstract
Although previous studies have proposed an association between maternal exposure to fine particulate matter (PM2.5) and the risk of gestational diabetes mellitus (GDM), such evidence remains rare. Additionally, the effects of PM2.5 on glycemic control in GDM patients are poorly known. In this study, we conducted a prospective birth cohort study in China, and aimed to investigate the association between maternal exposure to PM2.5 and the risk of GDM, identify the susceptible exposure window, and quantify the exposure-response relationships between PM2.5 and fasting glucose in GDM patients. A spatiotemporal land-use-regression model was used to estimate individual weekly PM2.5 exposure during pregnancy. A distributed lag nonlinear model incorporated with a Cox proportional hazard model was used to estimate the association between maternal exposure to PM2.5 and the risk of GDM. Among the 4174 pregnant women in our study, 1018 (24.4%) were diagnosed with GDM. Each 10 μg m−3 increment in PM2.5 exposures during the 24th gestational week was significantly associated with a higher risk of GDM [hazard ratio (HR) = 1.03, 95% CI (confidence interval): 1.01, 1.06]. Compared to the lowest quartile (Q1) of PM2.5 exposure, participants with the highest quartile (Q4) during the 21st–24th gestational weeks had a higher risk of GDM, and the strongest association was observed in the 22nd gestational week (HR = 1.15, 95%Cl: 1.02, 1.28). The mean PM2.5 exposures during the 21st–24th weeks were positively associated with fasting plasma glucose in pregnant women with GDM. Each 10 μg m−3 increase in the mean PM2.5 exposure was associated with a 0.07 mmol l−1 (95% CI: 0.04, 0.11 mmol l−1) increase in the fasting glucose level. Our findings suggest that maternal exposure to higher PM2.5 during pregnancy may increase the risk of GDM, and result in poor glycemic control among pregnant women with GDM. The 21st–24th gestational week period might be the (most)? susceptible exposure window of PM2.5.
The Biotic Integrity of Ciliwung River in West Java Under Multiple Urban Stressors
Authors: Sutjiningsih Dwita , Soeryantono Herr , Anggraheni Evi , Saleh Toha 
Published: February 2021

Abstract
Based on its imperviousness, most of the sub-watersheds in the lower part of Ciliwung watershed in West Java are classified as urban drainage. High imperviousness in the urban environment will cause multiple stressors among others on the discharge, water quality and habitat condition, those supposedly support the presence of macroinvertebrates. Macroinvertebrates are commonly used as markers of the biotic integrity of aquatic ecosystem. The aim of the study is to explore the extent of causal relationship between imperviousness, as trigger for the emergence of stressors on biotic integrity, which is represented by Family Biotic Index. The Family Biotic Index is considered as response variables, while imperviousness, discharge, water quality and habitat condition are as explanatory variables. Significance correlation tests among explanatory and response variables from 23 sub-watersheds of Ciliwung using Spearman Rank-order Correlation show that they are correlated. Influence of multiple urban stressors on the biotic integrity was assessed using several alternatives of multiple linear regression model, which is determined based on backward elimination procedure. The standard error of estimate ranges between 0.8563 and 0.9096 are less than standard deviation amounted 1.0876, therefore the models are acceptable for predicting the response variable, the FBI. Although they have not yet fully represented the observed FBI values, especially for the lowest and the highest one, possibly due to very limited data. This can be seen from the low value of the coefficient of determination, R2 ranging from 33,23% up to 43.86%, and from the juxtaposed between model results and the observed values.
Factors Affecting Concrete Recycling Adoption in the Construction Projects
Authors: Badraddin A K , Rahman R A , Zakaria Z , Hasan M 
Published: February 2021

Abstract
Recycling addresses environmental issues associated with solid waste by minimizing overall resource consumption and environmental impact. In the construction industry, concrete recycling is crucial because concrete is the most dominant waste of construction and demolition waste. However, its implementation is at a low level in numerous countries becauseconstruction managers refuse to adopt concrete recycling in practice. This study’s objective is to identify factors that are affecting decisions in adopting concrete recycling from the constructionmanagers’ perspective. To achieve this objective, open-ended interview data with constructionmanagers are analyzed. Eleven factors affecting decisions in adopting concrete recycling inure identified. The factors are recycling factories, availability of raw material, quality, cost, reliable standard, government encouragement, legally, acceptance factor, proper planning, skilled workforce, and management. This research contributes to the body of knowledge in the analysis of factors that influence the acceptance of concrete recycling from industry practitioners’ perspectives, which could help researchers and industry practitioners develop strategies to reduce the rejection of concrete recycling among construction managers. The findings of this research would help improve the success of adopting concrete recycling in the construction industry.
Optimization Techniques for Rehabilitating Water Distribution Networks
Authors: Farouk A M , Romali N S , Rahman R A , Seman M A 
Published: February 2021

Abstract
Water sustainability ensures clean and plentiful water for both current and future generations. Water is the core of sustainable development as it is critical for socio-economic development, healthy ecosystems, and for human survival itself. It helps companies address supply and demand issues by using water more efficiently as well as reducing the amount of water needed to manufacture their products. Maintaining water sustainability is difficult because of a high level of non-revenue water (NRW) or water losses in water distribution networks (WDN). While one of the significant causes of NRW in Malaysia is difficulties in rehabilitating WDN, studies on effective approaches for rehabilitating WDN is limited. So, it is essential to understand the optimization techniques for rehabilitating WDN. Hence, this study’s objective is to identify the different optimization techniques for rehabilitating WDN by systematically reviewing the existing literature on WDN rehabilitation. This research contributes to the body of knowledge in providing insights on optimization techniques for WDN rehabilitation, which could help researchers and industry practitioners reduce NRW and achieve water sustainability.
Research on intelligent inspection technology of distribution network based on RFID
Authors: Hu Yang , Zhang Jun , Wang Dongliang 
Published: February 2021

Abstract
As an important part of power system, the safe and stable operation of distribution network affects the power quality of the whole society and the reliability of power grid operation. As a technology widely used in Internet of things equipment, radio frequency identification (RFID) has the characteristics of non-contact reading and wide identification range, which is especially suitable for the working situation of patrol distribution network equipment. Based on radio frequency identification technology, non-contact two-way communication is carried out. According to the task transmitted from the workstation, the inspection results are recorded, and the field data is transmitted to the background management system through the wireless communication network. The intelligent purpose of the distribution network inspection system is realized, so as to improve the inspection efficiency and the reliability of the power grid operation.
Method for selecting location and capacity of ring station in the urban distribution network
Authors: Song Ruochen , Gu Xiaoming , Liu Hong , Wang Haojia 
Published: February 2021

Abstract
Aiming at the lack of a systematic research method on the distribution of ring station in the existing 10kV urban medium voltage distribution network research, a method of ensuring the location and capacity of ring station based on the weighted Voronoi diagram is proposed. First, analyze the location and capacity of ring station based on the structure of the urban medium-voltage distribution network; Second, in view of the location and capacity of the ring station of the urban medium voltage distribution network, the line investment of the upper-level to the ring station, the investment cost of the ring station, and the line investment of the lower-level to the ring station are comprehensively considered, and build the mathematical model. Third, a method of ensuring the location selection and capacity determination of ring station based on weighted Voronoi diagrams and a solution process are proposed. Finally, an example is used to verify the effectiveness and practicability of the proposed method.
Mathematical Research on Influencing Factors of Power Pipeline Entering the Gallery under the New Situation of Environmental Protection
Authors: Li Lingyun , Xu Yang , Guo Xinju , Zeng Ming 
Published: February 2021

Abstract
At present, with the acceleration of urbanization process in our country, the demand and construction of underground pipeline networks are increasing in cities, and higher requirements are placed on land pollution prevention and social environmental protection benefits. The comprehensive pipe gallery can not only beautify the urban landscape, ensure urban safety, improve urban functions, and promote urban intensive efficiency and transformation, but also avoid the land pollution caused by repeated excavation of road with high environmental benefits. As one of the many pipelines in the comprehensive pipeline gallery, the construction of the power pipeline will also help save land resources and meet environmental protection requirements. Therefore, it is important to study the influence factors of power pipelines entering the gallery.
Research and Application of Post Evaluation Method for Power Grid Technology Projects
Authors: Ji Yongshang , Li Wensheng , An Shuhuai , Yin Zhi , Qiu Jifu , Peng Bo , Li Yajin 
Published: February 2021

Abstract
With the development of refined power grid investment, power grid companies pay more attention to investment benefits and effects while taking into account reliability. However, in the practice of project evaluation, there are problems of “emphasis on results and neglect of transformation”, “emphasis on long-term and neglect on short-term”, poor objectivity and low accuracy of economic benefit evaluation. According to the characteristics of science and technology projects, the concept, scope and time scale of the post-evaluation of power grid science and technology projects are defined. On the basis of the existing State Grid Corporation’s project post-evaluation, an evaluation index and a mid- and long-term evaluation system were established to comprehensively evaluate the investment benefits of scientific and technological projects and improve the evaluation mechanism of current evaluation indicators. This paper also digs out the guiding indicators of evaluation, and takes the economic benefits of result transformation as an important evaluation indicator to guide project implementers to improve project quality during project implementation, thereby improving the efficiency and benefits of scientific research project investment.
Supplier performance evaluation for 500 kV main transformer
Authors: Jiang Yinghan , Dong Litong , Chen Yinghua , Ge Yanqin , Wang Mingxue , Zhang Jinliang 
Published: February 2021

Abstract
As an important state-owned energy backbone enterprise related to national energy security and the lifeline of national economy, power grid enterprises are responsible for ensuring the quality and safety of equipment and promoting the development of equipment quality. Therefore, continuously improving the quality evaluation of main transformer equipment is very important to improve the quality of power grid main transformer equipment. This paper first constructs the main transformer equipment quality evaluation index system from equipment procurement, equipment installation, equipment use and equipment decommissioning and scrapping; on this basis, the scoring method of each evaluation index is given, and the final main transformer equipment quality evaluation score is calculated by combining subjective and objective weight determination method; Finally, according to the evaluation of 500kV main transformer equipment of provincial power grid company price score, to evaluate the performance of equipment quality provided by suppliers.
Polythiophene/Carbon Microsphere Composite as a High-performance Cathode Material for Aluminium-ion Batteries
Authors: Kong Dongqing , Fan Haodong , Wang Xiaohui , Hu Haoyu , Li Bin , Wang Dandan , Tian Shuang , Gao Xiuli , Xing Wei 
Published: February 2021

Abstract
Due to the high theoretical volume specific capacity and mass specific capacity of aluminum-ion batteries, they can meet the needs of contemporary society for high-performance energy storage devices, and have attracted a lot of research strength. Cathode materials are a key issue limiting the development of aluminum-ion batteries. Herein, polythiophene was prepared on the surface of carbon microspheres by in-situ oxidative polymerization, resulting in polythiophene carbon microsphere composite materials. It exhibits excellent electrochemical performance, as a cathode material for aluminum-ion batteries, in terms of a high specific capacity (106 mAh g−1 at a current density of 1 A g−1), good stability (maintaining 58 % of initial capacity after 10000 cycles) and excellent rate performance (90 mAh g−1 at a high current density of 3.5 A g−1).
A fault recovery scheme cooperating with reclosing and LVRT for active distribution network
Authors: Li Qian , Chi Ruimin , Ma Lei , Song Dan , Yuan Sen 
Published: February 2021

Abstract
The integration of distributed generation brings great change to the operation mode of the distribution network, and higher requirements have also been set for the fault recovery scheme. Analysing the relationship between fault reclosing and voltage variation of the distributed generation in distribution network and considering the influence of reclosing on LVRT of DG, this paper proposes a new fault recovery scheme cooperating with reclosing and LVRT (low voltage ride through) for active distribution network. The planned isolated island area is divided in advance for each DG, and different fault recovery methods are implemented according to the different fault conditions of the fault location, the isolated island area and the voltage variation of the distributed generation. The feasibility and effectiveness of the proposed scheme are verified by simulation in PSCAD.
Current Status Analysis and Development Research on Energy Saving and Emission Reduction of Power System HVDC Power Supply
Authors: Gan Zining 
Published: February 2021

Abstract
The power system’s development is facing a substantial environmental bottleneck, and the key to solving this problem is energy-saving and emission reduction. Based on the environmental effects, firstly, the research results of energy-saving and emission reduction in different development stages of power system HVDC power supply are summarized. Our research found that in the traditional power grid stage, most scholars focused on the environmental cost of pollutants on the power generation side; in the development of the smart grid stage, the research included quantitative analysis of energy-saving and emission reduction, economic analysis, and comprehensive evaluation, and there were many results and shortcomings. Based on summarizing the current results, future research on power system energy saving and emission reduction based on environmental effects prospects, and the critical research contents of future smart grids, integrated energy systems, and energy Internet are discussed.
Cold Spray Repair of the Surface Coating on Д - 30 Engine Center Transmission Cartridge Receiver
Authors: Shi Zhongchuan 
Published: February 2021

Abstract
According to the wear and spalling of the aluminum bronze coating on the central transmission cartridge receiver surface of Д-30 engine magnesium alloy, the cold spraying process was used to carry out the process test and the casing coating repair. The results show that the cold spraying process can obtain better effect than plasma spraying in repairing aluminum and copper coatings.
Research on Optimal Strategy of Residential Buildings Energy Based on Standardized Euclidean Distance Measure Similarity Search Method
Authors: Ding Yifeng , Liang Anqi , Ma Kai , Li Gan , Wang Zhao , Ma Lin , Sun Qinfei , Yang Shuo 
Published: February 2021

Abstract
Aiming at the integrated energy optimization problem of residential buildings including production energy, energy storage and energy use objects, such as photovoltaic power generation, solar heat, electric heating, heat storage, battery, household power load and so on, this paper formulate the energy scheduling policy under the current running state referring to the scheduling policy of similar running state in history from the point of view of data mining. Firstly, a random matrix of basic status of residential buildings energy is constructed. Based on this, a similarity search method based on standardized Euclidean distance measure is proposed. This method forms four standardized Euclidean distances that are the solar irradiance vector, outdoor temperature vector, residential buildings’ electric load vector and heat load vector by the similarity measure calculation based on the standardized Euclidean distance model. The weight analysis method is used to uniformly process a standardized European distance comprehensive index as a measure of similarity. Then, the paper analyses the threshold setting principle of similarity measure. Finally, the optimization process of scheduling strategy of residential buildings energy based on similarity search method is given. A simulation example of an actual residential buildings under a typical scenario of sunny day in winter shows that the proposed similarity search method based on the standardized Euclidean distance measure can make full use of a large amount of historical operating data and speed up the optimization efficiency of optimal scheduling strategy for integrated buildings energy. The scheduling strategy can guide energy storage to play the role of energy transfer, and guide the electric heating equipment and the time-shifting electric load to work in the valley period through the peak and valley electricity prices, thereby the user’s bill is effectively reduced.
Low Temperature SCR Cost Evaluation in Solid Waste Incineration Power Plant
Authors: Yao Yao , Qian Wang 
Published: February 2021

Abstract
To meet the increasingly strict emission control requirement, low temperature selective catalytic reduction (SCR) system is adopted in some waste incineration power plant because of the limited denitrification capability of selective non-catalytic reduction (SNCR) system in boiler furnace. The article evaluated the increased cost per ton of waste when SCR system is equipped on a 2×400t/d waste incineration power plant in Henan province. The total cost of SCR system, including construction period and operation period, per ton of solid waste is about 37 yuan.
Research on the Whole Life Cycle Management of Environmental Protection and Energy Saving for New Green Buildings
Authors: Lin Qiyan 
Published: February 2021

Abstract
China’s construction industry accounts for a large proportion of energy consumption and has become one of the burdens of environmental protection. How to achieve environmental protection and energy conservation in the construction industry is also an important issue in the current construction industry. Green buildings have become an important measure for environmental protection and energy conservation in the construction industry. The main problems of the current development of buildings, based on the perspective of the whole life cycle, analyze the application analysis of the environmental protection and energy saving of green buildings in all stages of the whole life cycle, and propose the whole life cycle management application strategy for environmental protection and energy saving of green buildings to promote the environmental protection of new green buildings Energy-saving development.
Research on Advanced Application Configuration Design Technology of Smart Substation
Authors: Du Zhen’an , Wen Bo , Wang Qi , Li Hengxuan , Chen Ke , Zhang Kanjun , Xiao Fan , Wang Ting 
Published: February 2021

Abstract
The application transparency of secondary equipment in Smart Substation is low, the logical linkage is poor, and the intercommunication ability of equipment from different manufacturers is limited, which seriously restricts the promotion and application of advanced application functions. In view of the above problems, this paper carries out the research on advanced application configuration design technology of Smart substation, realizes automatic generation of advanced application logic through configuration configuration technology, realizes real-time display of logic status through configuration monitoring technology, and develops a measurement and control device supporting configuration design. The research results of this project are applied to a 110kV Smart substation in Hubei Province. The application results show that the technology described in this paper can effectively improve the application quality and efficiency of advanced application functions.
Analysis of Magnetic Coupling Resonance Efficiency of Superconducting Radio Power String Familiar with Magnetic Resonance
Authors: Chen Xuanmo , Liu Yizhi , Li Chenghan 
Published: February 2021

Abstract
This paper presents a superconducting wireless transmission system whose transmitting coil adopts superconducting material and receiving coil to adopt copper material which can solve the problem of transmission efficiency of wireless transmission system well. Firstly we analyze magnetic coupling resonant wireless transmission principle; then measure superconducting coil resistance and copper coil resistance calculate analyze system quality factor change with frequency. Finally experiment measurement of transmission efficiency of superconducting-copper magnetic coupling resonant wireless transmission system analyzes the relationship between transmission efficiency and axial offset and radial offset distance. Experimental results show that superconducting wireless transmission systems can improve transmission efficiency significantly compared with copper wireless transmission systems. Compared with copper wireless transmission systems, superconducting wireless transmission systems have at least 12.4% efficiency enhancement during axial offset, while at least 11.3% efficiency increases during radial migration. While short distance radial migration (1~4cm), superconducting wireless transmission systems have almost constant transmission efficiency. Provide some technical reference for Superconducting wireless transmission.