bluuebunny/crossref_metadata_2025_split huggingface dataset:
Suitable Satellite Sensor for Elephant grass Above-Ground Biomass Estimation from Field Spectro-Radiometry Data
Authors: Zumo Isa Muhammad , Hashim Mazlan , Hassan Noor Dyana 
Published: May 2021

Abstract
A satellite sensor is a key instrument that remotely collects data about an object or scene. However, since different sensors have varying spatial, temporal, spectral and radiometric properties, it is very necessary for vegetation cover mapping to identify and select suitable sensor for specific purposes. This study analyses seven of the most widely used satellite sensors for vegetation mapping; and evaluate their performance on elephant grass Above-Ground Biomass (AGB) estimation. Spectro-radiometry and AGB data of 40 grass samples were used for modelling and validation. The site for the experiment was Daware grazing land, Nigeria. The satellites analysed were Landsat products (OLI and ETM), Sentinel 2 MSI, MODIS 09Q1, IKONOS, Worldview and SPOT 5. The spectral window for each sensor was identified. Red and NIR reflectance were extracted from the Spectro-radiometric measurements. Variations in the distribution of the Red and NIR spectral responses for each satellite window was evaluated. A ratio of NIR and Red was calculated as Vegetation Index Number (VIN). The calculated VIN and the measured AGB were correlated. The result indicates that Sentinel 2 MSI has a good data distribution in the Red band and the NIR band. The level of correlation between the field AGB and the VIN was also good (R2 = 0.927). The AGB calculated from Sentinel 2A MSI was validated at a good accuracy (RMSE = 0.326kg/pixel size and P value < 0.001) with the field measured AGB. The study concludes that Sentinel 2 MSI is the most suitable for estimating AGB for elephant grass. This provides a scientific contribution for accurate estimations of AGB specifically in grazing lands where grass information is vital.
Calculation of Real Evapotranspiration by the Application of Metric Method on Landsat-8 Data
Authors: Imanian Ali , Tangestani Majid Hashemi , Asadi Adel , Zare Mohammad 
Published: May 2021

Abstract
In geological remote sensing approaches for estimating evapotranspiration, METRIC method is among the most modern and precise approaches that many positive experiments have been reported regarding its applicability. In this study, the value of actual evapotranspiration (ET) occurred in Marvdasht farmlands, Fars province, Iran, was calculated instantaneously (hourly) and daily (24 hours), at 24 April 2017 using METRIC method and Lansat-8 data. In order to accuracy assessment of the results, estimated values were compared to the values calculated with Penman Monteith method in places that covers by alfafa crop. Our observations showed that ET values obtained via METRIC model on average, have 0.51mm difference in estimations, comparing to the Penman Manteith method.
Research on Three-Dimensional Interpolation Modeling Method of Micro - and Nanometer Controllable Surface
Authors: Lai Lianfeng , Niu Qinchuan , Ren Zhiying 
Published: May 2021

Abstract
The fundamental cause of friction and wear is the effect of force, resulting in material heating, deformation, fatigue, adhesion and furrow effect, which is closely related to the micro-topography of the contact surface of friction pair. How to establish the real three-dimensional (3D) rough surface, using inter-polation surface reconstruction based on real data, especially in the three dimensional precision measurement data processing, etc, also the lack of research and practice, so in this paper, fractal interpolation and spline interpolation, Fourier interpolation surface modeling interpolation algorithm of three methods for modeling, a detailed analysis and expounds the advantages and disadvantages of the three ways of modeling with surface, and finally to the surface of the atomic force microscope to measure the actual extraction of a small number of sampling points are simulated.
Research on the Spatial Spillover Effect of Ecological Innovation Ability and Regional Economic Growth
Authors: Wang Yao , Liang Zhilei , Chen Huaichao 
Published: May 2021

Abstract
This article using the spatial econometric analysis technology to build a space from the perspective of geographical feature weighting matrix, spatial correlation of the regional economic growth and integration, to explore the ecological innovation capacity and regional spatial spillover effect of economic growth, and using the spatial regression model decomposition of the partial differential method of actual effect based on 2009-2017 panel data from 29 provinces cities and autonomous regions in China. Based on the data of 29 provinces and cities in China from 2009 to 2017, this paper constructs the spatial weight matrix from the perspective of geographical features, establishes the spatial panel econometric model, and investigates the spatial correlation and clustering of regional economic growth uses spatial econometric analysis technology. We explore the spatial spillover effect of ecological innovation ability and regional economic growth, and uses the partial differential method of spatial regression model to decompose this effect. The results show that, firstly, China’s regional economic development is not balanced, and the economic development of neighboring regions is basically the same, which has a certain degree of spatial agglomeration and significant spatial correlation, and China’s economic growth has significant spatial heterogeneity. Second, the ecological innovation environment has a great spillover effect on the economic growth of neighboring regions, and the human resource level and capital investment have significant positive spillover effect between neighboring regions. The coefficient of ecological innovation output is significantly negative. Thirdly, the regional flows of capital input, labor force, the level of opening up, industrial structure and human capital not only have obvious direct effects, but also have a significant promoting effect on economic growth through the spatial spillover effect. The conclusion of this paper provides policy enlightenment for promoting sustainable economic growth among provinces and regions in China.
Study on Molecular Qualitative Detection Technology of Potato Scab Disease
Authors: Chi Wenjuan , Liu Yinan , Liu Wenyu , Li Chenglong 
Published: May 2021

Abstract
The paper uses a method that combines biological characteristics and 16S rDNA sequence characteristics to analyze potato scab bacteria collected from China. The study found that the obtained universal detection primers B1/B2 showed good specificity for all pathogenic strains, and could stably expand the target band, while non-pathogenic strains had no bands. The paper uses the spore dilution method to verify that the established detection method has a sensitivity of 20 pg·μL-1 for strain DNA, and the detection threshold for spores is about 4.0 CFU/μL. The genome amplification results of the test samples showed that the target bands were detected in the scab pathogen Streptomyces, diseased potato sample tissues, and diseased soil samples, but not the scab pathogen Streptomyces, healthy tuber tissues, non-sick soil samples and other strains None of the bands of interest were expanded, indicating that the method has good specificity. Therefore, we can conclude that the qualitative detection method of potato scab bacteria can realize rapid detection of strains, diseased tissues and soil samples.
Carbon Emissions Prediction of Jiangsu Province Based on Lasso-BP Neural Network Combined Model
Authors: Liu Xiaodie , Meng Xiangrui , Wang Xiangqian 
Published: May 2021

AbstractUnder the policy of achieving carbon peak before 2030, the paper predicts whether Jiangsu province can achieve the peak of carbon emissions before 2030. Based on the data of Jiangsu province from 2001 to 2018, the paper uses Lasso regression model to screen out 8 significant factors affecting carbon emissions, sets the values of each influencing factors during 2019-2030, and uses the BP neural network model to predict the carbon emissions of Jiangsu province during 2019-2030. The prediction results show that Jiangsu province will achieve the carbon peak in 2023 under the hypothetical scenario, with the peak carbon emissions of 335.1755 million tons.
Study on the 14th Five-Year Plan for Nuclear and Radiation Accident Emergency
Authors: Li Huang , Liu Ting 
Published: May 2021

Abstract
During the 13th Five-Year Plan period, China’s nuclear and radiation emergency regulations and standards system was gradually strengthened, emergency organizations at all levels were constantly improved. However, there are still some deficiencies in the construction of emergency team, professional technical ability, emergency rescue and so on. This paper comprehensively summarizes the experiences of nuclear and radiation emergency in China during the 13th Five-Year Plan period, and studies the development direction and capacity buildings in the period of the 14th Five-Year Plan, which provides a reference for the construction of nuclear and radiation emergency in China.
Research on the Change of Coastline on the South Coast of Hangzhou Bay Based on Multi-temporal Remote Sensing Images
Authors: Mao Yuxin , Yang Disheng , Zeng Annan , Zhao Xingyue 
Published: May 2021

Abstract
Coastline is an important geographic background for each coastal area, and dynamic monitoring of coastlines is beneficial to coastal natural protection and further coastal construction and development. Based on the Landsat8 data and Sentinel-2 data from 2014 to 2019, this paper uses a method combining regional growth and edge detection to analyze the Cixi section’s coastline changes on the south bank of Hangzhou Bay. Firstly, the multi-source remote sensing data is preprocessed, and then the MNDWI value of each image is calculated. Then, each image is processed into a binary image by a regional growth algorithm. Eventually, we realize the coastline segmentation by the Canny operator of edge detection. The research represents that the coastline of the south coast of Hangzhou Bay moves toward the ocean year by year, and the length of the coastline generally decreases. The analysis may be caused by human-made activities in Hangzhou Bay Area in recent years, such as river cut-offs and urban construction. The research in this paper provides a reference for the protection of natural coastlines and human-made coastlines.
Application of ICP-MS Method in Environmental Field
Authors: Sun Wen , Yang Ke , Xia Longfei 
Published: May 2021

Abstract
ICP-MS is a new technology for environmental monitoring and analysis. This article summarizes the characteristics of ICP-MS and its application in the analysis of environmental samples such as soil and water, and summarizes mass spectrometry interference factors such as isobaric, oxide, double charge, and polyatomic ions, with a view to future ICP-MS.
Anti-fatigue effect of enzymatic protein hydrolysate from Macadamia
Authors: Shuai Xixiang , Li Ya , Zhang Ming , Ma Feiyue , Du Liqing 
Published: May 2021

Abstract
The anti-fatigue effect of macadamia (Macadamia integrifolia) protein and hydrolysate prepared with basic protease were investigated. Random mice grouping was carried out to create 4 groups including the control group and protein hydrolysate groups at low (150 mg/kg·d), medium (500 mg/kg·d) and high (1500 mg/kg·d) doses. All groups were treated by gavage for 28 consecutive days. Weight-loaded swimming test, serum urea nitrogen, serum creatine kinase activity, blood lactic acid and liver glycogen assays were performed to assess its anti-fatigue effect. The results showed that macadamia protein hydrolysate could significantly prolong weight-loaded swimming time, promote synthesis of liver glycogen and decrease blood urea nitrogen and lactic acid. Moreover, it can also significantly reduce serum creatine kinase activity. Therefore, macadamia protein hydrolysate had significant anti-fatigue function.
Amino Acid Composition and Functional Properties of Different Molecular Weight Segments of Macadamia Peptides
Authors: Shuai Xixiang , Li Ya , Zhang Ming , Ma Feiyue , Du Liqing 
Published: May 2021

Abstract
In this study, macadamia peptides were produced by ultrasonic-assisted alkaline protease, and five components were separated by ultrafiltration centrifuge with different molecular weight (1kDa, 3kDa, 10kDa, 30kDa). The amino acid composition, solubility, water absorption capacity and emulsifying properties of five components were compared. Results showed that all macadamia peptide components were rich in amino acid species, the contents of essential and hydrophobic amino acids ranged from 189.59 to 281.10mg/g and 204.26 to 258.78mg/g, respectively. Meanwhile, the small molecular weight components (MP-1) showed the best solubility and water absorption capacity, large molecular weight components (MP-5) had the best emulsifying properties. This result indicated that the distribution of molecular weight had significant effects on the amino acid composition and functional properties of macadamia peptide components. This study provides a theoretical basis for the further development of macadamia peptide products.
The Influence of Urbanization on Storm Runoff
Authors: Sun Xiaomei , Zhang Haiou , Hua Dongwen , Wei Binmeng 
Published: May 2021

Abstract
With the development of economy society, urbanization process are accelerated, the tension of the urban land using leads that the cities develop to the low-lying parts, and even occupy river, landfill ditch pond, it makes perched water space of the city narrow, rainfall runoff coefficient increasing, the confluence time speeding up, it increases urban flood risk. Urbanization has changed the urban hydrologic cycle characteristics, so as to make the urban rain flood characteristics changing, it easily causes short duration rainstorm seeper-waterlogging, so as to directly influence the urban residents’ lives and causes great economic losses, even casualties. City is the political, economic and cultural center, once suffered from floods, it will cause great political influence and economic losses, so, it’s necessary to analysis urban storm flood reason and put forward the corresponding countermeasures. This paper mainly discusses the urban waterlogging reason and influence on storm runoff, and discusses the countermeasures.
Current status, causes and harm of soil arsenic pollution
Authors: Yan Bo , Zhang Xin 
Published: May 2021

Abstract
Soil arsenic pollution is a global problem that seriously threatens human health and environmental safety. Excessive arsenic content in the soil will inhibit the growth and development of plants, kill beneficial microorganisms in the soil, and damage human health after entering the human body through the food chain. This article describes the current status of soil arsenic pollution, the sources of arsenic pollutants, and the hazards of arsenic pollution to plants, microorganisms and human health. And the prospects for the treatment of arsenic pollution were prospected.
Measuring influential factors for air pollution in New-York-Newark-Jersey City by grey relation analysis
Authors: Chen Baoxin , Lu Qin , Zhang Tao 
Published: May 2021

Abstract
This study investigates variations of air quality index (AQI) for air pollutants in the metropolitan area (New-York-Newark-Jersey City; NY-NJ-PA) during 2010 - 2019 to identify the key influential factors for air pollution using grey relation analysis method. The results show that the annual averages of daily AQI values for multiple pollutants in NY-NJ-PA generally decreased except O3. The AQI values of O3 fluctuate greatly. The main factors affecting AQI values of CO, PM2.5, O3, SO2, and PM10 are the emissions of CO2, SO2, and NOx, whereas the main factors affecting AQI values of NO are the emissions of SO2, population, and NOx.
Remediation Effect of Biochar on Heavy Metal Contaminated Soil
Authors: Sun Sha , Zhang Yabo , Cao Xiaohui 
Published: May 2021

Abstract
The remediation effect of biochar on Cu, Cd, Pb and Hg compound contaminated soil was studied by adding different concentrations (0%, 5%, 10%) of pig manure carbon and fruit charcoal into the soil contaminated by tailings by biochar and plant pot experiment. The results showed that the addition of biochar could effectively reduce the content of heavy metals in soil, and the effect of fruit charcoal was significantly better than that of pig manure charcoal, and when the addition of fruit charcoal was 10%, the remediation effect of copper, cadmium, lead and mercury compound contaminated soil was the best.
Thiobacillus Acidophilus Removes Lead and Copper From Wastewater Containing Low Concentration of Heavy Metals
Authors: Xu Linlin , Gu Weihua , Bai Jianfeng 
Published: May 2021

Abstract
One of the main source of heavy metal wastewater is the electronics industry. If treated ineffectively, it may be discharged into water bodies, causing water body pollution and endangering human health. Traditional treatment methods have a poor quality of wastewater and high treatment process costs. This subject takes the low concentration of lead and copper wastewater from a lead storage battery factory as the research object, and uses the principle of the precipitation of Thiobacillus acidophilus to remove lead and copper from the wastewater. The results show that at a temperature of 30°C, pH of 2.5, and rotation speed of 130r/min, acidophils have the highest removal rate of 74.69%, 38.48% for lead and copper, respectively.
The effects of Exocarpium Citri Grandis on the volatile components of Green teabased on HS-SPME-GC-MS
Authors: Wu Xiaorong , Wu Juxian , Huang Baoling , Chen Haibin , Ling Haohao , Huang Baiqi 
Published: May 2021

Abstract
Aroma is an important factor in the quality of green tea. In order to explore the effect of Exocarpium Citri Grandis(ECG) on the aroma formation of green tea, the aroma components of green tea were extracted and identified by HS-SPME-GC-MS. The results showed that the main aroma components of green tea were D-Limonene (58.69%), γ-Terpinene (14.51%), Myrcene (9.82%), 2,2,4-trimethyl-1,3-pentanediol diisobutyrate (3.98%) and caffeine (2.67%).After co-fermentation with ECG, the main aroma components of green tea were changed to D-Limonene (33.64%), 2,2,4-trimethyl-1,3-pentanediol diisobutyrate (11.7%), γ-Terpinene (9.38%), 2-pentadecanone (8.93%) and caffeine (6.04%).The content of terpenessuch as D-Limonene decreased, while the content of aromatic components such as linalool increased, and the types of volatile components increased in green tea. Among the newly added volatile components, the higher ones were2-pentadecanone (8.93%), β-ionone (2.76%) and dihydroactinidiolide (2.17%), which can give green tea fruity, violet and coumarin aroma. This study indicated that ECG contributes to the enrichment of greentea aroma, which provides theoretical support for the development of mixed tea with unique aroma.
Study on the Harm of Waste Activated Carbon and Novel Regeneration Technology of it
Authors: Ma Yuanze , Zhang Xiuxia , Wen Jingyang 
Published: May 2021

Abstract
Activated carbon is widely employed as an adsorbent in environmental protection, food, medicine, chemical industry, energy and other fields due to its good physical and chemical properties and low price. However, the resulting large amount of saturated activated carbon is easy to release harmful substances in the high temperature environment. Even if the saturated activated carbon is treated with harmless regeneration technology, it may lead to secondary pollution owing to improper disposal. Therefore, on the basis of summarizing the traditional methods of activated carbon regeneration, combined with the research progress in the laboratory, frontier progress of new activated carbon regeneration technology are elaborated in recent years in this paper, and the development direction of activated carbon regeneration technology are also presented in the end of the paper.
Effectiveness of environmental protection and low carbon work based on 5P model. - A case study of Boxing County in Shandong Province
Authors: Li Yawei , Nnodim Osai 
Published: May 2021

Abstract
Human resource exists in all management work. The 5P model is the top priority of human resource management and the foundation of human resource management. Applying the 5P model to public institutions in China, a reasonable management system can be established, which takes job design as the premise, personnel selection as the key, performance management as the core, salary management as the focus, and improving work enthusiasm as the auxiliary.
Research on Key Technologies of Energy Conservation and Emission Reduction in the New Era
Authors: Liu Yujie 
Published: May 2021

Abstract
The adjustment of coal energy resource tax is an important price control method to realize energy saving and emission reduction and promote low-carbon economy. The global financial crisis and my country’s economic recovery provide a favourable opportunity for coal resource tax adjustment. Combining the current background of the new era of energy conservation and emission reduction, the paper builds a China Energy CGE model based on the actual situation in China, and calculates the impact of ad valorem tax rates on different coal resources. The results of the study found that the coal resource tax reform has a weak negative impact on the economy. Considering the tax return scenario, it cannot only offset the impact, but also drive a small increase in GDP; the coal resource tax reform will not push up the CPI, deregulate electricity prices, and considering the tax rebate has a more obvious restraining effect on prices; the coal resource tax reform is conducive to improving the structure of domestic demand. Similarly, considering the tax rebate scenario, the effect is more obvious. Coal resource tax reform can reduce the output of high-energy-consuming industries, which is conducive to energy conservation and emission reduction.
Application of PSPL Method in Urban Street Public Space——An Example of Tianlin Road (Guilin Road—Liuzhou Section) in Xuhui District, Shanghai
Authors: Fan Geqin , Shi Zhengguang 
Published: May 2021

Abstract
Based on Yang Gail’s “people-oriented” public space theory and related research methods, this paper applies pspl research method to Tianlin road street in Xuhui District of Shanghai, investigates and analyzes the spatial scale of street road, the quality of street facade and the flow of people, evaluates the quality of street space, and puts forward some suggestions and ideas.
Determination of Available Lead in Greenhouse Soil by Solid Phase Dispersion Extraction Coupled with Atomic Absorption Spectrometry based on Primary Secondary Amine
Authors: Zhang Feilong , Wei Na , Wang Jun , Liu Qinghai , Zhaxi Cidan , Li Jirong , Dawa Zhuoma , Zhang Yifan , Pu Jifeng , Yang Zhen , Qiu Cheng 
Published: May 2021

Abstract
In order to effectively evaluate the pollution status of available lead (Pb) in farmland environment, a method for the determination of available Pb in greenhouse soil by atomic absorption spectrometry with primary secondary amine (PSA) as solid phase dispersion adsorption material was established. In combination with neutral salt (such as 0.01 mol/L CaCl2) extraction technology, neutral lead-containing aqueous solution was obtained. Based on the rapid adsorption of Pb in neutral environment and the rapid desorption of Pb under acidic conditions, the pretreatment method of sample enrichment and purification based on PSA was established by optimizing the parameters. The samples after enrichment and purification were determined by atomic absorption spectrometry. Results showed that the linearity of the method was good in the range of 0.010 ∼ 0.050 mg/kg (R2 = 0.9990). The limit of detection was 0.0051 mg/kg and the limit of quantity was 0.017 mg/kg. The recoveries were 97.6% to 99.2% and the relative standard deviation was 0.79% ∼ 1.56% at the concentrations of 0.010, 0.030 and 0.050 mg/kg.