bluuebunny/crossref_metadata_2025_split huggingface dataset:
Study on heat transfer enhancement of solar finned tube phase change regenerator
Authors: Jiang Jingzhi , Chen Zhengjia , Bo Lin , Cui Haiting , Peng Peiying 
Published: December 2020

Abstract
Based on the problems of heat storage in the process of solar energy utilization and the advantages of finned tube heat exchanger, the finned tube is applied into the solar phase change heat accumulator and the heat storage process of the phase change material is simulated numerically. The results show that the use of finned tube instead of smooth tube in solar phase change heat accumulator can effectively improve the heat transfer intensity of the outside of the tube during phase change heat storage, thus enhancing the heat transfer capacity of the whole heat accumulator and shortening the heat storage time. In the simulation range of this paper, the optimum structure parameter of finned tube is: finned outer diameter of D2=28mm, fins thickness of t=1mm, fins number of c=13, spacing between fins of h=25mm.
Performance and characteristics of methylene blue adsorption using nanomagnetite graphite adsorbent
Authors: Wen Shuangxi , Zhang Juanjuan , Meng Dele , Yang Hongyi , Yang Tongneng , Xiao Mi 
Published: December 2020

Abstract
In this paper, a nanomagnetite graphite adsorbent (MGNP) was developed for removal of methylene blue from aqueous solutions. MGNP was synthesized through the nanographite powder (GNP) functionalized with magnetic γ-Fe2O3 nanoparticles under alkaline conditions and calcining for 3 h at 300 °C. The MGNP featured a quick separation process from solutions with an external magnet. The surface charge of the adsorbent was pH-dependent, the pHpzc of MGNP was approximately 7.2. The methylene blue adsorption isotherm of the MGNP can be well fitted by the Langmuir model, the maximum adsorption capacity was about 114.94 mg/g at 25 °C when pH = 7 ± 0.1. In conclusion, the MGNP could be a potential adsorbent for the uptake of methylene blue from wastewater.
Influence of cooling rate on structure and combustion reactivity of char during char preparation process
Authors: Chi Huanying , Su Sheng , Xiang Jun , Yu Pengfeng , Huang Haizhou , Guo Tingting , Li Hanjian 
Published: December 2020

Abstract
Different chars with various cooling rates were obtained in the novel concentrating photothermal reactor to investigate the influence of cooling rate on the structure and combustion reactivity of char. The chars were prepared at 900°C with holding time of 10s, 30s and 120s, respectively. Subsequently, the cold (ex-situ) chars were prepared from the hot (in-situ) chars by controlling different cooling rates of 180°C/s (fast cooling rate), 30°C/s (sub-fast cooling rate), 6.8°C/s (moderate cooling rate) and 1.3°C/s (slow cooling rate). The ex-situ chars were then employed for the combustion in 30%O2/70%CO2 atmosphere at 900°C for 180s. For comparison, the in-situ char was conducted by instantaneously switching the reaction atmosphere. For the chars with holding time of 10s, the mass fraction of in-situ char was higher than the char yield of ex-situ char, and the char yield was decreased with the decrease of cooling rate. The char yield with slow cooling rate was decreased by 11.16% than that with fast cooling rate. The maximum and average mass loss rate of char in O2/CO2 was decreased as the cooling rate decreased. Reduced influence of cooling rate on the aromatic ring systems of char with holding time of 30s and its reactivity was displayed, while almost no difference of those with holding time of 120s was illustrated. The reactivity was closely related to the chemical structure of the char, but no positive correlation was found between the combustion reactivity and the specific surface area of char. The residues proportion of volatile components was the decisive factor of char reactivity.
Research on Fiscal and Tax Policy to Promote the Development of Low-carbon Economy in Shandong Province
Authors: Zhang Xianghui 
Published: December 2020

Abstract
With the development of economy, energy consumption is increasing, resulting in global temperature warming, which poses a threat to human survival. The energy consumption and economic growth of Shandong Province are in the forefront of our country. How to save energy while promoting economic development and realize the rapid, healthy and sustainable development of economy is a problem worth thinking about. Under the new normal of economy, fiscal and taxation policy plays an important role in promoting the development of low-carbon economy, and it is urgent to explore the fiscal and taxation policy suitable for the development of low-carbon economy in Shandong Province. On the basis of introducing the current situation of fiscal and taxation policies to promote the development of low-carbon economy in Shandong Province, this paper analyses the existing problems of fiscal and taxation policies to promote the development of low-carbon economy in Shandong Province, and puts forward corresponding suggestions. The aim is to promote the development of low-carbon economy in Shandong Province.
Design and Implementation of Mobile Integrated Off-grid Energy Storage Power Supply for Ship
Authors: Zhou Ling Hui , Liu Dan Ya 
Published: December 2020

Abstract
This paper designs a Mobile Integrated Off-grid Energy Storage Power Supply for Ship (Power Bank for Ship). The power bank for ship is mainly used to provide power supply services for ships. It can supply power for daily loads of ships and can also be conveniently charged by the marine electric generator or the charging station onboard.The power bank for ship has the characteristics of high integration, intelligence, two-way power supply and charging. The successful development of this equipment provides new ideas for the realization of clean energy for ships in my country, and has a positive effect on the environmental protection of the Yangtze River and other inland river economic zones.
Exploring the research fronts of low carbon and energy-efficiency in economic environmental development: a scientometric analysis from a multidisciplinary literature
Authors: Pan Chung-Lien , Huang Jieqi , Zhou Xiaobing , Chen Zizhen , Chen Zixuan , Chen Ziyao , Yu Yilin 
Published: December 2020

Abstract
In the increasingly severe global economic environment, low-carbon and energy efficiency have become a hot topic in contemporary times. In order to provide low-carbon and energy efficiency at the forefront of economic and environmental development, this article is based on 192 data retrieved from the Web of Science (WoS) database. This article conducted a comprehensive data and visualization analysis on keywords such as “low-carbon economy” and “low-carbon development”.
The development trend and problems of Chinese condiments
Authors: Zhou Yilun , Xiangning Chen 
Published: December 2020

Abstract
After more than 20 years of accumulation, Chinese condiment market has achieved considerable development. While the market scale and output are expanding year by year, condiments are also changing from traditional to compound and functional segmentation. The condiment market will also become more concentrated, and the speed of introducing new technologies will accelerate, shifting toward a more consumer-friendly direction. However, there are also some problems during the development. This article lists some of the problems exposed by the development of the condiment market and proposes some improvement measures.
Effects of exogenous ABA on the physiological characteristics and chlorophyll fluorescence of Gynura cusimbua seedlings under drought stress
Authors: Cai Lujuan , Feng Yingying 
Published: December 2020

Abstract
This paper is to investigate the physiological mechanism of exogenous abscisic acid (ABA) on alleviating drought stress in Gynura cusimbua The effects of exogenous ABA on physiological characteristics and chlorophyll fluorescence parameters of the leaves of Gynura cusimbua under drought stress were studied with 10% polyethylene glycol 6000 (PEG 6000) in simulated drought stress. The results showed that the activities of antioxidant enzymes and some fluorescence parameters increased slightly after spraying exogenous ABA. Under drought stress, exogenous ABA can increase chlorophyll content, enhance antioxidant enzyme activity, reduce MDA content, increase maximum photochemical efficiency Fv / FM, regulatory energy dissipation Y (NPQ), photochemical quenching QL, actual quantum efficiency Y (II), non-photochemical quenching NPQ fluorescence parameters, and reduce non-regulatory energy dissipation Y (NO) and minimum fluorescence Fo parameters, so as to reduce the damage to seedlings under drought stress. Among them, the ABA concentration of 200 μmol/L was the best to alleviate 10% drought stress.
Extraction of peroxidase from apple peel waste mediated by tween 80 reverse micelle system
Authors: Chen Xiangyan , Fei Jia , Peng Xin , Meng Yong , Yuan Lu 
Published: December 2020

Abstract
Plants peroxidase is an important class of oxidoreductases. It exists widely in plants, animals and microorganisms, capable of catalyzing the oxidation of H2O2 phenols, vitamin C, nitrite, colorless dyes, indole and inorganic ion reaction. The reverse micelles extraction operation process is simple, continuous-operation, recyclable solvent, maintaining the native conformation of the protein. And it will not produce secondary pollution to the environment so that it has been gradually applied in the extraction and purification of the enzyme. Experimental operation of this paper was divided into the following two aspects: on the one hand, the selection of extraction technique and methods of detecting enzyme content and activity. We selected coomassie blue staining to determine enzyme content, while using ultraviolet spectrophotometry to resveratrol as a substrate for peroxidase activity assessment. On the other hand, the main aspect was how single factor affected reverse micelles extraction efficiency, including the aqueous phase pH, surfactant concentration and extraction time. By comparing difference of the recovery and purification of peroxidase between multiple different variables under same factors, we could get the optimum conditions: Tween 80 at a concentration of 0.30 mol/L, pH = 4.5, oscillation time of 20 min.
Screening of chemical insecticides against Diaghania pyloalis
Authors: Ren Jiequn , Zhang Minghai , Chen Li , Tan Lixin , Yi Yang 
Published: December 2020

Abstract
In recent years, a kind of mulberry pests which were known as mulberry pyralid Diaghania pyloalis in different sericultural areas occurred popularly in China. This study aims to screening high efficacy and low toxicity insecticides for controlling Diaghania pyloalis. The current study can help understand integrated pest management (IPM) of Diaghania pyloalis by scientific and reasonable insecticide use. Field experiment was carried out to investigate five insecticides, treated with five concentration gradients. The result shows that Imidacloprid and Chlorfenapyr had higher control effect on Diaghania pyloalis, which was relatively safe to the silkworm. The silkworm was fed until cocooning in the treatment area which sprayed for 15 days and 30 days, investigated cocoon quality achievement, the result shows that 10% Imidacloprid WP and 8% Chlorfenapyr ME had no toxicity to silkworm larvae, there was no significant difference between the economic property index of silkworm in treatment areas and that of the control area. To control Diaghania pyloalis, 2000 dilution of 10% Imidacloprid WP and 8% Chlorfenapyr ME can be used in sericultural production, the leaves should be picked at intervals of 15 days to avoid affecting the quality of cocoons.
Effect of hot air drying temperatures on drying characteristics and physicochemical properties of beetroot (Beta vulgaris) slices
Authors: Liu Yan , Duan Zhenhua , Sabadash Sergey 
Published: December 2020

Abstract
The objective of this study was to investigate the influence of hot air drying temperatures ranging from 50 to 100 °C on the drying characteristics and physicochemical properties of beetroot slices. The results showed that by increasing temperatures from 50 to 100 °C, the drying time could be from 12.5 to 4.5 h, which could significantly increased the drying rate. The beetroot slices dried at 60 °C showed the smallest total color difference compared with fresh beetroot slices. The betalain content (betacyanin and betaxanthin) of beetroot slices decreased with the increase of drying temperatures, and betacyanin was more temperature sensitive than betaxanthin. The total phenol content and antioxidant capacity had the same trend with drying temperatures, and both reached to the maximum at 100 °C.
Effects on Growth of Ectropis grisescens Warren under Illumination
Authors: Qiao Li , Geng Shubao , Jin Yin-Li , Yin Jian , Zhang Fangmei 
Published: December 2020

Abstract
The 2nd and 5th instar of Ectropis grisescens Warren larvae were exposed to 400~405 nm illumination for 0, 60, 90, 120, 150 or 180 min to determine the effects of the irradiation on the development time as well as the rates of pupation, pupa emergence, aberration rate, eclosion rate, adult longevity and oviposition rate. The results showed that, as compared with control, as the processing time increases, the developmental duration was significantly shortened with 5 instar of E.grisescens Warren larvae. The eclosion rate and aberration rate were significantly increased. At the same time, the pupa weight was significantly higher than that of the 2nd instar larvae. The mortality increased significantly in 2nd of E.grisescens Warren larvae. There was no difference in adult eclosion rate between the two groups, and there was also no difference in the average oviposition. There was no significant difference between the two groups under 400~405 nm illumination, Male adults live longer than female adults.
Study on food nutrition and association with Diabetes Mellitus
Authors: Wan Sitong 
Published: December 2020

Abstract
The increasing number of diabetic patients is becoming a worldwide problem. In recent decades, type 2 diabetes mellitus (T2DM) has been prevalent significantly in the Asian-Pacific region. This may be caused due to modern lifestyle and western dietary patterns, such as reduced physical activity, increased consumption of fat and sugar. In this article, we described various dietary nutritions and their relationships with diabetes, particularly T2DM. We reviewed recent studies on dietary fat, dietary proteins, dietary carbohydrates and dietary supplements regulating diabetes prevention and control. These epidemiological and experimental findings are expected to provide further insight for controlling and treating diabetes in modern nutritional background.
Realization and Practical Application Analysis Of Lactic Acid Bacteria Fermentation Bioengineering
Authors: Qiao Wanhan 
Published: December 2020

Abstract
Fermentation Engineering is the basis of biotechnology industrialization. Fermentation engineering plays an important role in biotechnology. Currently, among the known technologies, fermentation Engineering is the most effective means to put bacteria with special characteristics obtained by genetic engineering or cell engineering into industrial production, and finally realize the production benefits and economic value of biotechnology. Fermentation Technology is a traditional biotechnology with a long history. However, due to the transformation of modern biotechnology research results, new contents are continuously injected into it, and the traditional fermentation technology has shown new vitality, the variety of microbial fermentation products is increasing.This paper mainly expounds the research status of lactic acid bacteria and its fermentation biotechnology, aiming to provide reference for the deep processing of fermented products.
Research on the Treatment of Soil Leachate by Using Microalgae
Authors: Zhao Yaqing , Wu Tiane , Wang Wei , Zhao Lei , Liu Jiangang , Jiang Yige , Zhou Wei , Hao Jianchao 
Published: December 2020

Abstract
In order to remove and recover nitrogen and phosphorus of water from soil surface runoff, the combination method of cultivation and harvesting of microalgae was used in this research. Microalgae was cultured in the leachate of soil which was collected from vegetable greenhouse; culture solution was sampled and detected at different intervals. The results showed that leachate contained nutrients which could meet the needs of algal growth, the algal density increased in line with increase of culture time; pH of culture solution was alkaline and increased fast in the first 5 days; total and soluble phosphorus, total nitrogen and nitrate decreased fast in the first 5 days which showed assimilation of microalgae could remove phosphorus and nitrogen in the leachate.
The adsorption performance of hexavalent chromium Cr(IV) in aqueous with three biomass carbons materials
Authors: Yan Yun , Li Liping 
Published: December 2020

Abstract
The paper reported the adsorption capacity of hexavalent chromium Cr(VI) in aqueous solutions with three agricultural waste by five awns (PE), corn stalks (CM), peanut shells (HS) and prepared the adsorbent by carbonization at 550°C. A series of adsorption experiments were performed to investigate the effect of Cr(VI) concentration, contact time. The results indicated that peanut shells (HS) have a higher removal rate than the other two materials. The Langmuir and Freundlich adsorption isotherm models are used to describe the adsorption process. The adsorption isotherm of Langmuir well explained the balance mechanism and the research showed that adsorption conformed to the pse-second kinetic model.
Analysis of the Impact of the Temporal and Spatial Variation of the High Water Level of the Pearl River Estuary on Urban Sluice Discharge
Authors: Liu Pei , Huang Pengfei , Xu Wei 
Published: December 2020

Abstract
According to the tide level data of 8 main tide level stations at the Pearl River Estuary from 2001 to 2015, the long-term sequence of annual maximum tide level changes were analyzed through the Mann-Kendall trend analysis method, and its influence on the design tide level was explored, with a view to provide certain scientific references for the department of water conservancy project and management to formulate regional flood control planning and management. The results show that the annual highest tide level at the mouth of the Pearl River Estuary went upward from 2001 to 2015. The significance level of Dongsikoumen was lower than that of Xisikoumen, and the annual highest tide level of the Koumen site was constantly refreshed, leading to the increase of the design tide level, which will affect the flow capacity of the nearby sluices.
Performance evaluation of a three-stage composite wet scrubber for removing particulate matter
Authors: Zhang Bin , Hu Chengming , He Jinjie , Sui Chunjie , Chen Wei 
Published: December 2020

Abstract
A three-stage composite wet scrubber was designed and developed to scrub fly ash particles through different modules from the effluent gas stream of an industrial production. The flue gas entering the scrubber is purified by the falling film scrubbing of Raschig ring packing, the spraying settlement of water mist, the mesh water film interception of grilles, and the electrostatic adsorption of filaments, thereby removing particulate matter and water mist. In the experiment, the particle removal efficiency at different packing heights, the inlet concentrations of fly ash and the inlet flow rates of flue gas were investigated. The experimental results show that, without any additives or pretreatment, the packing height is 30 cm, the particle removal efficiency of the new scrubber can reach more than 99.5%, and the outlet concentration is less than 8.75 mg/m3 when the inlet concentration of fly ash is less than 12.53g/m3 and the inlet flow rate is less than 12.13 m3/s. The three-stage composite wet scrubber was evaluated to add a novel scrubber in the list of wet scrubbers for industrial applications. This wet scrubber has a simple structure, easy operation, improved compactness, and high efficiency at low energy consumption.
Experimental Study on Purification of Indoor Air Particulate Matter by Household Air Conditioner
Authors: Jiang Ping , Wei Xiaowen , Lin Xilong 
Published: December 2020

Abstract
The most common indoor air pollutants are particulate matter. However, existing indoor air purification techniques have many drawbacks. Admittedly, the low-temperature condensation method can be regarded as an effective method to remove particulate matter. In this paper, experiments are designed to examine the concentration reduction efficiency of PM2.5 and PM10 in the room by using air conditioner. The experimental results showed that household air conditioners have a purification effect on particulate matter. Under the refrigeration mode of maximum air volume, the concentration reduction efficiency of PM2.5 and PM10 reaches 60.99% and 57.47% respectively. The greater the volume of the air, the higher the concentration reduction efficiency of particulate matter. In the purification of PM2.5 and PM10 by household air conditioner, low-temperature condensation plays an important role. It can be suggested that the amount of condensed water affects the concentration reduction efficiency of PM2.5 and PM10 in the room.
Underwater image enhancement algorithm based on Retinex and wavelet fusion
Authors: Chen Junjun , Gao Zhengzhong , Huang Chen , Yang Lixing 
Published: December 2020

Abstract
Aiming at the problems of color cast, low contrast and fuzz in the original underwater image, this paper proposes an underwater image enhancement algorithm based on Retinex and wavelet fusion. First, this paper uses the multi-scale Retinex algorithm to perform color correction processing on underwater images. Then, this paper performs gamma transformation and sharpening on the image to improve the contrast and sharpness of the image. Finally, this paper uses wavelet fusion algorithm for image fusion to obtain underwater images with clear textures and details. Through subjective and objective evaluation with other algorithms, the algorithm proposed in this paper improves the color cast and fuzz, and improves the contrast and clarity of the image.
Comparison of Satellite-retrieved NO2 Vertical Column Density with Ground-level NO2 concentration in a provincial scale region
Authors: Zheng Fengbin , Xia Yu , Ge Qiang , Cai Kun 
Published: December 2020

Abstract
Satellite remote sensing will have certain errors in data retrieval accuracy, which requires further ground observation verification. This paper examines and verifies 2019 Jiangsu provincial Ground-level monitoring data and TROPOMI data to evaluate the applicability of TROPOMI tropospheric NO2 Vertical Column Density (VCD) data and compares the results to OMI data analysis verification results. The results show that the correlation coefficient r between the TROPOMI NO2 data and Ground-level monitoring data at the monthly mean scale is as high as 0.9, and consistent seasonal cyclic changes are observed. The correlation between Ground-level monitoring data and OMI NO2 data is lower than TROPOMI (r=0.78 < 0.9). Compared to OMI satellites, the TROPOMI attains a smaller deviation in tropospheric NO2 monitoring. Jiangsu Province had the highest monthly average concentration in January, which were 38.67 ug/m3 (Ground-level), 17.35 × 1015 molec/cm2 (TROPOMI) and 20.04 × 1015 molec/cm2 (OMI). The lowest concentration in August was 13.39 ug/m3 (Ground-level), 5.2 × 1015 molec/cm2 (TROPOMI) and 7.03 × 1015 molec/cm2 (OMI).