bluuebunny/crossref_metadata_2025_split huggingface dataset:
Research on Micro-Analysis System of Dye in Water Sample Based on Magnetic Nano-TiO2
Authors: Xiaoting Zhu , Heyong Cheng , Meiying Ye 
Published: February 2021

Abstract
Magnetic Nano-Photocatalytic Material (NMPC) helps separate and recover nano photocatalyst in water treatment. However, it is rarely reported that a photocatalyst can be separated online in photocatalytic microreactors. In this paper, a typical dye methylene blue was photocatalytically degraded in glass microfluidic chip by using Fe3O4@ SiO2@ TiO2 (FST) as the magnetic nanocatalyst, the UV-LED as the ultraviolet light source, and ultraviolet-visible spectrophotometer as the detector. The FST was easily separated by an external magnetic field, thereby realizing rapid online detection of methylene blue. During the preparation of FST, the hydrothermal method was used to treat the obtained FST nanoparticles in 100°C boiling water bath, and the titanium-iron ratio was optimized, so as to obtain FST nano-photocatalyst with high photocatalytic performance and good dispersibility. With 1.0 g/L FST/8%H2O2 being the catalytic oxidation system, the sample flow rate being 300 μL/h, the reaction temperature being 45 °C, the degradation rate of methylene blue has reached 100%. It only took 25 min to complete one measurement. The FST consumed per measurement was only 125 μg. The RSD of the photodegradation rate was 2.5% (n=9).
Products characterization for fast in-situ catalytic pyrolysis of bio-oil over Ni/Al2O3
Authors: Deng Zengtong , Wang Yi , Hu Song , Su Sheng , Jiang Long , Xiang Jun 
Published: February 2021

Abstract
Pyrolysis is a promising technology for bio-oil utilization. However, bio-oil is thermally unstable and easily coking due to the complicated components and their interactions. This study developed an in-situ catalytic pyrolysis method for bio-oil over Ni/Al2O3. The results of product distribution and aromatic structures were investigated to elucidate the influence of catalyst participation and droplet sizes of bio-oil. The nickel catalyst can effectively decrease coke yield and increase gas yield at the studied condition (800 °C fast pyrolysis). Small droplets that lead to a higher heating rate would promote severer secondary reactions which lead to repolymerization. The catalyst would provide adsorptive points that help small fragments to be cracked and result in large fragments polymerizing.
Loss-of-function of vacuolar-type H+ pyrophosphatase gene lead to reduce in stomatal aperture and density
Authors: Gao Ma-ye , Liang Jin , li Hao , Zhong Rong , Di-an Ni 
Published: February 2021

Abstract
Transgenic plants over-expressing vacuolar H+ type pyrophosphatase (V-PPase) gene were reported to display drought resistance, reduced vacuolar pH and raised stomatal conductance. To further understand the role of V-PPase on stomatal regulation, loss- and gain-of-function approaches were combined for analysing relationship between stomatal aperture and V-PPase gene expression. Homozygous mutants of this gene were isolated by polymerase chain reaction (PCR) method. BCECF-AM fluorescence probe was used for detecting cellular pH. The result here indicated that Arabidopsis plant lines over-expressing of V-PPase gene displayed raised stomatal aperture. Both of stomatal aperture and density of homozygous vpp mutants were less than that of control plants. In addition, cellular pH of guard cells in vpp mutants was higher than control evidently. In general, our results suggested that V-PPase activity regulates stomatal aperture by changing guard cell pH.
Glucose-6-phosphate induced changed of stomatal aperture in an irradiance dependent manner
Authors: Di-an Ni , Ma-ye Gao , Liang Jin , Dong-mei Yin , Zhang Zhi-guo , Ruan Yong-Ling 
Published: February 2021

AbstractHexokinase catalyses hexose phosphorylation, which is the key step of sucrose metabolism. In this study, stomatal apertures ofArabidopsisepidermal peel were detected with or without exogenous application of mannose, fructose, glucose, and glucose-6-phosphate (G-6P). The results here showed that G-6P, but not glucose itself, induces stomatal closure inArabidopsis. Furthermore, detection of stomatal apertures ofArabidopsishexokinase loss of function with exogenous application of glucose showed that glucose induced stomatal closure was not due to osmotic pressure and it triggered guard cell ROS production depend on hexokinase activity. The effect of irradiance and G-6P on regulation ofArabidopsisstomatal aperture was investigated. The data obtained here indicated that G-6P induced changes of stomatal aperture depend on irradiance.
Cangnan printing & packaging industry renovation and VOCs governance experience
Authors: peipei Chen , Owanlu Jia , jingrun Chen , mengbin Li 
Published: February 2021

Abstract
The total content of volatile components emitted by ink accounts for 70%-80% during the process of drying. Various approaches, such as forcing law enforcement, stricting standards, improving governance efficiency, have been used to reduce the VOCs pollution. All these approaches not only improved the environment of workshop and regional air quality, but also promoted the standardized development of the industry.
Characteristics of the community-structure of A2O processes under different dissolved oxygen conditions in plateau areas
Authors: Yuanwei Li , Hao Kaiyue , Guo Mingzhe , You Junhao , Zong Yongchen 
Published: February 2021

Abstract
This study conducted a Pilot-Scale Anaerobic-Anoxic-Aerobic Process (A2O) experiment in a highland city of Linzhi. Four Dissolved oxygen (DO) working conditions of 2.0, 1.5, 1.0, and 0.5 mg/L was designed in this experiment. The 16SrRNA gene sequencing was performed on sludge from the anaerobic, anoxic and aerobic tanks. Through the composition analysis of sludge on Phylum, Class and Genus level, it can be found that the number of bacterial community at each level of the bacterial community was relatively low. Indicators of community richness, community evenness and community diversity were relatively low compared to other regions. The bacterial communities at different levels are significantly different from the reported dominant community and abundance. Correlation analysis between environmental factors and bacterial community structure proved that DO had significant correlation with bacterial community structure (P<0.05). The removal rates of the total phosphorous (TP), Total nitrogen (TN), Ammonia nitrogen (NH3-N) and Chemical Oxygen Demand (COD) were all affected by the sample communities structure. The composition of the bacterial community structure included nitrifying bacteria, denitrifying bacteria and polyphosphate-accumulating organisms, but the abundance was relatively low. The results also showed that the dominant community in different DO conditions and different reactors has large differences.
Study on LNG leakage and diffusion in dangerous goods logistics park
Authors: Zhang Kaituo , Tan Chao , Lv Zhiyong , Chen Rui 
Published: February 2021

Abstract
In this paper, according to the idea of “forward model algorithm of leakage and diffusion”, the research on LNG leakage and diffusion in dangerous goods logistics park is completed, the main research contents are as follows: 1) An improved forward Gaussian diffusion model of LNG is established to modify the parameters according to the specific environment of dangerous goods logistics park. 2) The safety trace software is used to simulate the process of LNG leakage and diffusion in the hazardous materials logistics park. The applicability of the improved Gaussian diffusion model in the case of LNG tank leakage in the dangerous goods logistics park is verified by the influence of the downwind distance of the concentration contour line and environmental factors on the leakage and diffusion.
Study on the removal of hydrogen sulfide from natural gas by titanosilicite zeolite
Authors: Bowen Qi , Chen Ying , Li Yanju , XiuboTian  , Ma Luwei 
Published: February 2021

Abstract
The presence of hydrogen sulfide in natural gas will reduce the calorific value of natural gas, so hydrogen sulfide in natural gas needs to be removed. Titanosilicalite zeolite is a stable porous material with good catalytic effect and has attracted much attention due to its excellent catalytic oxidation performance in the system composed of it and hydrogen peroxide. Therefore, in this paper, the removal of hydrogen sulfide in natural gas was studied by using titanosilicalite zeolite as catalyst and hydrogen peroxide as oxidant, and the mixture of hydrogen sulfide and nitrogen gas was used as the simulated gas of natural gas. The experimental results show that the titanosilicite zeolite has a good catalytic effect on hydrogen sulfide. The influence of the concentration of hydrogen peroxide, reaction temperature and pH of the initial solution in the process of removing hydrogen sulfide by titanosilicalite zeolite was studied.
HPLC-Based Quantitative Detection of Tylosin in Soil
Authors: Wang Kang , Yu Shaopeng , Zhou Jia 
Published: February 2021

Abstract
The sample was extracted under the ultrasonic assistance and purified through the solid-phase extraction, and then the residual tylosin in soil was detected via the high-performance liquid chromatography (HPLC). Acetonitrile-aqueous solution was used as the extracting agent in the ultrasound-assisted extraction. The HLB solid-phase extraction column was activated using 5 mL of methanol and 5 mL of ultrapure water, leached with 5 mL of water and 5 mL of 2% ammonium hydroxide + 5% methanol solution, and eluted with 5 mL of methanol in the end. The determination was implemented using the HPLC method, where the detected wavelength λ value was 290 nm, the sample size was 20μL, and the column temperature was 30°C. Acetonitrile -0.01 mol/L monopotassium phosphate solution (pH=2.5) = 60:40 (V: V) was taken as the mobile phase in the detection of response degree to tylosin in soil. The detection results were as follows: LOD was 0.019mg/kg, LOQ was 0.062mg/kg, the coefficient of variation of intra-day precision was smaller than 10%, and that of inter-day precision was smaller than 15%.
Study on the mechanism and influencing factors of SF6 decomposition products
Authors: Lijun Fu , Guan Yanling , Zhang Liang , Jin Haiquan , Wang Han , Jing Yuanchi 
Published: February 2021

Abstract
The decomposition products of GIS basin insulators have characteristic components under four conditions: different defects of GIS basin insulators, cracks and surface discharge of insulation parts inside GIS, abnormal heating of silicon packing basin insulators under steady state current, and particulate discharge of insulation parts. The characteristic components of decomposition products of SULFUR hexafluoride are introduced. Different mechanisms of decomposition products in partial discharge defects and abnormal heating defects were analyzed. The effects of partial discharge defects, abnormal heating defects and adsorbents on the decomposition products were studied.
A Potential Synthesis Routine of Microketide A and B, Polyketide from a Fungus in Southern China Sea
Authors: Wu Yudian 
Published: February 2021

Abstract
In this paper, a synthesis routine of microketide A (1a) and B (1b) is purposed. The microketides are divided into two parts, 2 and 3, and synthesized separately. 2 is synthesized by an ortho-specific alkylation of phenols. 3 is synthesized by first oxidizing and then reducing phenols. The chirality of carbon 6 is ensured by Noyori asymmetric hydrogenation. After 2 and 3 are synthesized, a MBH reaction connects them, providing the microketides A and B.
Study on dielectric relaxation Spectra of Surfactant-free Microemulsion composed of Water / Ethanol / Triethyl Citrate
Authors: Liu Canli , Khan Muhammad Asadullah , Chen Zhen 
Published: February 2021

Abstract
In this paper, the dielectric relaxation behavior of surfactant-free microemulsion composed of pure water / ethanol / triethyl citrate (TEC) from 40Hz to 110MHz was studied. There is an obvious relaxation phenomenon between 103 and 105Hz in the selected experimental path, which is presumed to be interfacial polarization relaxation, indicating that there is a microscopic phase region in the system. The dielectric relaxation parameters fitted by a dispersion term Cole-Cole formula, that is, relaxation intensity Δε and relaxation time t, obviously vary with the phase composition of the system, and different trends can indicate that the system is in different microemulsion phase regions. It is proved that the dielectric spectrum technique can accurately characterize the surfactant-free microemulsion.
Analysis of Three Flavonoids in Jujube Effervescent Granules by High performance liquid chromatography
Authors: Wang Rui , He Youping , Shiwen Hu 
Published: February 2021

Abstract
In this research, high performance liquid chromatography (HPLC) was used to detect the content of rutin, myricetin and epicatechin in jujube effervescent granules. Methanol-0.1% formic acid water was used as the mobile phase, and the UV detection wavelength was 270 nm. The results showed that the content of rutin and myricetin has a good linear correlation (r>0.99) within the range of 1.0 μg to 50 μg, and the content of epicatechin also has a good linear correlation (r>0.99) in the range of 1.5 μg to 100 μg. The recovery of rutin, myricetin and epicatechin were 99.1 %, 98.6 % and 101.8 %, respectively. Furthermore, the total content of the three flavonoids in jujube effervescent granules was 472.19 μg/g, the content of rutin, myricetin and epicatechin was 433.75 μg/g, 6.46 μg/g and 31.98 μg/g, respectively.
Absorption principle and techno-economic analysis of CO2 absorption technologies: A review
Authors: Zhang Chaoran 
Published: February 2021

Abstract
Since the industrial revolution, human activities have led to massive CO2 emissions, and the greenhouse effect has intensified. Therefore, scientists have developed and explored various CO2 capture technologies, such as absorption, adsorption, membrane separation and cryogenic technology. Among them, the absorption technology has been the most widely used. This paper reviews and summarizes the CO2 absorption technologies in the past ten years, introduces the principles of the following six mainstream technologies for CO2 absorption: monoethanolamine (MEA), ionic liquid, calcium looping, microalgae, ammonia, and molten carbonate fuel cells. Through comparing absorption cost, energy consumption, absorptivity as well as the advantages and disadvantages, this paper reveals that calcium looping and ammonia are the relatively suitable technologies at present. The calcium looping has low capture cost and energy consumption, but the reaction capacity of CaO adsorbent decreases rapidly during the absorption process. The absorptivity of ammonia is high and fertilizers (NH4HCO3) with added value can be produced, but the ammonia volatilization problem is challenging. Consequently, the two technologies have their own advantages and disadvantages and should be used considering the actual situation. The conclusions of this paper can guide industries to select CO2 absorption technologies with relatively lower cost, less energy consumption and higher absorptivity.
Ecological Risk Assessment of Typical Heavy Metals in Surface Dust in Z University
Authors: Feng Ruixiang , Liu Meiling 
Published: February 2021

Abstract
With the population increasing, the rapid development of social economy and the continuous improvement of industrialization level, heavy metal pollution becomes more and more serious nowadays. It is becoming more and more urgent to put forward feasible suggestions on the detection and assessment of heavy metals in the environment. Surface dust is an important environmental media, and people can easily intake pollutants from surface dust by daily life breathing, eating or skin contacting at any time anywhere, which will cause chronic harm to the human body directly or indirectly. In order to analyze the pollution of heavy metals in surface dust and assess the ecological risk, we take the campus of Z University as the research area. Through the investigation of the campus layout we’ve collected 23 effective surface dust samples. After sample digestion, the content of 4 kinds of typical heavy metal, such as Cd, Pb, Cu and Zn were determined by atomic absorption spectrometer ZEEnit700P. The method of index of geo accumulation and potential ecological risk index were used to analyze. It was conluded:1. The average content of heavy metal elements Cd, Pb, Cu and Zn in surface dust in Z University is -0.143, 163.56, 76.90 and 106.96mg/kg respectively, which is -0.83, 6.13, 2.5 and 1.28 times as the soil background values of Hubei province, and the level sorting is Pb > Cu > Zn > Cd. The content of Pb is the highest in surface dust heavy metal pollution, which are contributed mostly by tire wear, vehicle emissions and construction content of heavy metals in surface dust in Z University.2. Most area of Z University is in clean condition, except a sample point area is in or above moderate ecological risk level, the whole campus area is safe or only slight potential ecological risk.
Analysis and Research on the Maintenance Funds of Rural drinking water safety Projects
Authors: An Meiyun , Li Shuijun , Liu Liu 
Published: February 2021

Abstract
Since the reform and the opening up, Guizhou has made great achievements in rural drinking water safety projects, creating well-being for the farmers, but how to ensure the long-term and effective performance of the project has always been a major problem in the management and protection of the project. It takes Guizhou province as an example, and concludes that maintenance expenses are the main factor restricting the long-term operation of projects, from the investigation results of different types, scales and modes of projects in typical regions. In order to ensure the long-term operation of projects, the article carries out the research and analysis of the project maintenance funds to provide reference for the management and protection of rural drinking water safety projects in mountainous areas.
Research of Geostatistics on Spatial Distribution of Urban Surface Water Quality
Authors: Sun Hongquan , Wang Jing , Tian Yachong , Shi Yiran 
Published: February 2021

Abstract
The principles and methods of geostatistics are introduced. With the help of variogram, the contents of the water quality. NH4+-N, TP and COD, in rivers in the city of south China are analyzed. By using the Kriging, the special distributions of the content of NH4+-N, TP and COD are simulated. The contours of the spatial distribution of the urban surface water quality are shown intuitively. The research results provide a theoretical basis for governing the water environment.
On the Relationship between Mazu Culture and Marine Civilization
Authors: Jianhuang Meng , Shihhui Pan 
Published: February 2021

Abstract
Mazu belief originated in the Song Dynasty and has never been interrupted for thousands of years as the precious spiritual wealth and excellent cultural heritage of Chinese. Mazu belief is the best embodiment of the profound and rich connotation of Chinese marine culture reflecting the traditional virtues of Chinese. Based on marine culture and spread widely around the world. Mazu belief is closely related to marine culture and marine civilization. Interpreting the relationship between them is of great significance for better understanding of Mazu belief culture and marine civilization. The study of Mazu culture is conducive to better promoting Mazu Spirit and promoting a better construction of a harmonious society.
Research on the Green Transformation of Mining Enterprises Guided by Government Based on Game Perspective
Authors: Hou Jun-hua , Zhu Jin-deng , Peng Zhen 
Published: February 2021

Abstract
In order to effectively solve the pollution problem of exploitation and utilization of geological and mineral enterprises and realize the goal of green transformation of geological and mineral enterprises, this paper USES the static game theory to analyze the interactive mechanism between geological and mineral enterprises and the government in the process of green transformation. The results show that the key factors affecting the game behavior are the government’s punishment, the supervision revenue, the outside supervision strength and the green transformation cost benefit of the mining enterprises. Based on the results of the study, the paper puts forward some relevant countermeasures and Suggestions to promote the green transformation of geological and mineral enterprises in order to form a good situation of government and enterprise co-governance[1].
Prediction of China’s Total Energy Consumption Based on Bayesian ARIMA-Nonlinear Regression Model
Authors: Kun Zhang , Weibing Feng 
Published: February 2021

Abstract
Energy management is the key to China’s economy prosperity and environment protection in the future. This paper makes predictions on whether China’s energy 13th Five-Year plan can be achieved and the trend of energy consumption in the next stage. Aiming at the shortcoming of insufficient extraction of nonlinear features in the energy system from existing energy consumption models, and low prediction accuracy due to single models. Based on the derivation of the joint posterior distribution density function of the stationary ARMA model parameters under the Normal-gamma prior distribution, this paper proposes a Bayesian ARIMA-nonlinear regression energy consumption prediction model. Bayesian parameter estimation makes full use of prior information and Markov Chain Monte Carlo (MCMC) technique gets rid of the tedious calculation of high-dimensional integrals. Compared with the existing model, the improved model has higher prediction accuracy. Its Root Mean Square Error and Mean Absolute Percentage Error are 3452.0294 and 0.4727%. In line with the development goals set out in the 13th Five-Year plan, an empirical study of the fluctuation law of China’s total energy consumption was carried out using data on China’s energy consumption from 1990 to 2019 and its factors. The results show that affected by the Corona Virus Disease 2019 epidemic, the growth rate of China’s energy demand will fluctuate slightly in 2020. By the end of the 13th Five-Year plan, the total energy consumption can reach the expected goal. After the epidemic is under control, energy demand for the whole society will usher in a rebound growth. In the next five years (2020∼2024), China’s energy consumption will continue to maintain a steady upward trend of slowing growth. In view of these situations, this paper suggests that, on the one hand, we should attach equal importance to energy conservation and technology development to improve energy efficiency; on the other hand, we should adjust industrial structure and establish a unified energy management system to promote sustainable development of the energy industry.
A Discussion on the Construction Ideas of Sponge City in A Green Eco-district
Authors: Wei Zhu , Yumiao Li , Chengdan Wang 
Published: February 2021

Abstract
With the continuous enhancement of ecological awareness in recent years, sponge city design has become more professional and secure in green eco-district planning. In this context, in order to give full play to the function and advantages of the green eco-district, it is an irresistible trend to advance the progress of the green eco-district planning and accelerate the construction of sponge city. Based on the above situation, first of all, this paper analyzes the significance and value of sponge city from three aspects of ecological benefit, social benefit and economic benefit based on the construction concept of sponge city. Secondly, the planning and design ideas of sponge city construction are analyzed from the perspectives of compliance with principles and proper planning, planning procedures and measures, and the selection of adaptive technologies.