bluuebunny/crossref_metadata_2025_split huggingface dataset:
Evaluation Model of Residents’ Waste Classification Participation Degree Based on Investigation in Changzhi City
Authors: Yang Boxing , Zhang Chi , Qi Shuyu , Tao Yuexin , Luo Yunfei , Wang Yiduo 
Published: March 2020

Abstract
Source waste separation can greatly reduce the cost of solid waste treatment and disposal, and has considerable economic value. However, there are many kinds of domestic waste and their composition is complicated, which makes it difficult for residents to participate in it. As a collective behaviour of public participation, the difficulty of its existence can test the level of the role played by all participants. Therefore, based on the field research and literature comparison of Changzhi City, this paper establishes the analytic hierarchy process (AHP) evaluation model, and takes residents, government and market as the main participants to evaluate the classified participation of residents' garbage, and puts forward some suggestions to provide the basis for policy decision-making of public management in the field of environment.
Analysis on Noise Reduction Method of Boiler Room in City
Authors: Wang Yiduo , Yang Boxing , Zhao Chongzheng 
Published: March 2020

Abstract
Noise environment attracts people's attention constantly at present. In the city, the noise of boiler room is especially serious. Noise has not only physical but also psychological effects on human body. This paper introduces the noise reduction methods commonly used in boiler rooms and discusses the comparison of noise reduction effect and economic cost between sound insulation technology and sound absorption-insulation technology.
Research on technical problems of urban domestic sewage treatment under environmental protection form
Authors: Chen Jing 
Published: March 2020

Abstract
The increasing urban scale in China has led to an increase in the water consumption of urban residents. Freshwater resources have become more and more precious. This has increased the pressure on sewage treatment to a certain extent, so in this case it should be Urban sewage treatment issues are researched and improved and strengthened to allow freshwater resources to be recycled. These have very important practical significance for the urban ecological environment protection and the promotion of the scientific development of the city.
Research on coal supply and demand matching process based on carbon emission
Authors: He Qi 
Published: March 2020

Abstract
The use of coal is an important part of China's energy use and an important source of economic development. Due to the need for sustainable development and environmental protection, the problem of uncoordinated transactions between the two parties in the transaction process has been closely watched by all sectors of society. Based on the current shortage of coal market transactions, this paper designs a coal supply and demand matching process considering carbon emissions from an intermediary perspective, aiming at reducing carbon emissions and improving matching efficiency.
Research on influencing factors and countermeasures of industrial carbon emission in Hebei province based on Kaya model
Authors: Fan Zhiguo , Hu Qi 
Published: March 2020

Abstract
In view of the world carbon emission problem, the current status of low carbon economy research is reviewed. Based on the historical data of industrial carbon emissions in Hebei Province from 2008 to 2017, based on the historical data of industrial carbon emissions in Hebei Province, the Kaya decomposition model was used to find the industry affecting Hebei Province. The driving factors of carbon emission levels and the trends of various factors, and then combined with the LMDI model, the absolute contribution of each driving factor to the economic development of Hebei Province, and the specific analysis of carbon emission levels, and finally put forward rationalized emission reduction measures and suggest.
Study on the current situation of municipal sewage sludge disposal and disposal process
Authors: Jiang Jingbo 
Published: March 2020

Abstract
In the process of urbanization, each city should actively respond to the call of the country and regard sustainable development as the core of development. Based on this, cities should pay attention to urban environment and ecological benefits. In cities, urban sewage plants should pay more attention to sludge treatment and disposal. Through strict sludge treatment, the impact of heavy metals and pathogens in the sludge on the urban environment will be reduced. Based on the continuous updating of sludge treatment technology and processing equipment in China, urban sewage plants must strengthen the rational disposal of sludge. In order to improve the efficiency of sludge disposal and avoid pollution to the environment, it is particularly important to do a good job in sludge treatment status and technology research. Briefly analyse the source and nature of sludge in urban sewage treatment and the status of sludge treatment and disposal, and focus on the relevant sludge treatment technology to provide reference for better application of sludge treatment technology.
Study on Environmental Protection Based on Urban NIMBY Facilities
Authors: Zhang Zhanmeng 
Published: March 2020

Abstract
With the rapid development of industrialization and urbanization in China, environmental problems have become increasingly prominent and citizen’s awareness of environmental protection has been constantly improved, especially for the new neighborhood avoidance projects which may cause significant environmental events. Moreover, it is difficult for citizens to find appropriate ways while safeguarding their personal rights and interests, which leads to NIMBY conflicts. Therefore, this paper makes an empirical analysis on the current situation and problems of NIMBY projects in Beijing, Tianjin and Hebei through questionnaire survey, and puts forward the strategies to solve the problems.
Assessment of Applicability of Non-point Source Pollution Along Gantangjiang River Basin Based on SWAT Model
Authors: Yang liya , Zhou Hao , Dai Liyuan 
Published: March 2020

Abstract
Gantangjiang River Basin was took as the object of study on non-point source pollution to establish a non-point source pollution model applicable to Gantangjiang River Basin based on SWAT model theory and make assess the applicability of the model. The relative error Res of monthly mean value was less than 25%, the monthly correlation coefficient R2 ranged from 0.72 to 0.89, and the monthly efficiency coefficient Ens was not less than 0.5, with a good fitting effect. This study demonstrated that it was feasible to simulate the non-point source pollution along the Gantangjiang River Basin, based on SWAT model. The simulation result showed that the load capacity of non-point source pollution in knowable basin changed in an irregular "W" trend as months went by. The rainfall intensity and capacity influence the pollution load in a certain extent.
Impact of influent ammonia concentration on partial nitrification of biological sand filter and kinetics
Authors: Chen Jiao , Lu Yixin , Luo Xiu , Li Yangtao , Tang Li 
Published: March 2020

Abstract
The impact of influent NH4
+/-N concentration on partial nitrification performance was investigated in a biological sand filter. The removal kinetics model of NH4
+-N in partial nitrification-sand filter was established and its accuracy was verified. The results showed that the NH4
+-N removal rates and NO2
−-N accumulation rates stabled at about 60% and 94% respectively and the effluent NO2
−-N/NH4
+-N ratios were 1.20~1.39 when the hydraulic load was 1.0 m/d and the influent NH4
+-N concentration was 45~50 mg/L, indicating that the sand filter had good partial nitrification effect, and the effluent quality basically met the theoretical influent demand of anaerobic ammonia oxidation. The kinetic model of NH4
+/-N removal in sand filter could be described as Sh
/S
0=exp(-1.0033S
0
−1.1337
h) when the influent NH4
+-N concentration was 10.2~61.3 mg/L. The model had high accuracy and could provide scientific guidance for effluent quality prediction and optimization design.
The application of PAC and PAM in dynamic treatment of beryllium copper wastewater
Authors: Shi Yang 
Published: March 2020

Abstract
The dynamic removal of beryllium and copper element was achieved by slanting plate clarifier after the wastewater of beryllium copper production line was settled by PAC and PAM. When the pH of wastewater was 9.0, PAC with a mass concentration of 50 mg/L at a flow rate of 200-250 L/h and PAM with a mass concentration of 2 mg/L at a flow rate of 150-200 L/h were injected in the wastewater sequence, respectively. The treated wastewater flowed through the slanting plate clarifier at a flow rate of 30 m3/h and then filtered continuously through the filtration device. The results show that Be2+ and Cu2+ concentrations are lower than 5 μg/L and 2 mg/L, respectively, which complies with the Standards of GB 8978—1996. Therefore, the Be2+ and Cu2+ elements in the wastewater can be removed at the same time.
Underwater Object Segmentation Algorithm Based on Depth Information
Authors: Zhu Xiaowen , Hu Zheyu , Tu Dawei , Zhang Xu 
Published: March 2020

Abstract
In the process of developing the ocean, the underwater robot's accurate positioning of the object is the key to the success of the underwater mission. Due to the interference of environment and other factors, the traditional GrabCut algorithm cannot accurately locate the target from the image collected by the visual sensor. This paper proposes an image segmentation algorithm based on depth Information, which is improved on the GrabCut algorithm and fuses depth information. First, the foreground area of the original image is extracted by using the depth information of the image to become a new image to be segmented. Then, two interactive operations are conducted on the new image. Finally, GrabCut algorithm is used to obtain the segmentation result of the target. Compared with GrabCut algorithm, the algorithm in this paper is more effective, which can improve segmentation accuracy and target positioning effect.
Underwater image conversion method based on multi-layer plane refraction model with light field processing method
Authors: Yao Qinzhou , Zhuang Sufeng , Tu Dawei , Zhang Xu , Xie Liangliang 
Published: March 2020

Abstract
In order to adopt the conventional visual measurement technology to underwater application, this paper proposes an underwater image conversion method based on a multi-layer plane refraction model, which converts the underwater image into an air image. First, under the multi-layer plane refraction model, the imaging process of the underwater camera is modelled in the form of a four-dimensional light field parameterization, and the direction vector of the air image is calculated using the light field direction information. Then, the perspective projection transformation is used to obtain the corresponding pixel coordinates of the direction vector and the image plane. Finally, the transformed air image is obtained by interpolation method, using the mapping relation of the corresponding image point coordinates before and after the transformation. Simulation and experimental results show that the average error of the corrected image is 0.56 pixel, and the high-precision air image provides strong support for subsequent underwater 3D reconstruction.
The Design of Globe Valve Innerleakage Detection System Based on Acoustic Emission in Natural Gas Pipeline
Authors: Xia Guanghui , Gou Weijie 
Published: March 2020

AbstractAE leakage detection system is designed, ball valve leakage detection software is written, so that the real-time and accurate leakage is tested, and the detecting data are restored. This paper tries to determine an effective detection system by way of the theoretical and experimental analysis. The results make real-time detection possible. As a result, the ball valve leakage detection, location and estimation problems are preliminary solved and reference for future research is provided.
Flocculation-Magnetic Separation Technology for the Rapid Treatment of First Flush Rain
Authors: Feng Hui , Jia Xiaochen , Gu Xiujun , Su Zhilong , Wang Rui , Qin Pingping , Ding Ye 
Published: March 2020

Abstract
In order to rapid treatment of first flush rainwater, a new flocculation-magnetic microsphere was prepared. And magnetic microspheres were prepared using the modified Stöber method. Magnetite (Fe3O4)-silica (SiO2) core-shell microspheres have superparamagnetism verified by using XRD, FTIR and VSM analysis. Also, Fe3O4/SiO2 (FS) microspheres have no significant reduction after at least reused five times. The optimal feeding order and conditions were flocculant, magnetic powder and PAM, reaction temperature 25 °C, static sedimentation time 30 min, and pH=7. Under the optimized condition, 62% of COD and 98% of turbidity were removed. Especially, Fe3O4/SiO2 microspheres can effectively adsorb heavy metal ion.
Research on the Antioxidation of Rosemary in Polypropylene
Authors: Zheng Qiukai , Wang Fang , Fan Jingjing 
Published: March 2020

Abstract
Effects of Rosemary Antioxidanton, extracted from Rosmarinus officinalis with different solvents, on the antioxidantive properties of polypropylene were evaluated by measuring the oxidation induction temperature. For comparison purposes, the effects of a synthetic phenolic commercial antioxidant Irganox B215, were also analyzed. The results showed that Rao is a more efficient thermal antioxidant for polymers compared to Irganox B215 in low concentration. Rao can be used as a natural antioxidant in place of synthetic antioxidants for polymers. Rao has the characteristic of being harmless and having high activity, good stability and abundant resources to be a good natural antioxidant.
Study on the impact of climate change in China
Authors: Qi Binhua 
Published: March 2020

Abstract
Global warming is not only an important problem in the survival and development of human beings, but also an urgent problem to be solved by the contemporary government. China is not only a big country in the world, but also ranks first in the world in total population, economic scale and economic growth rate. With the improvement of the national economic strength, China's greenhouse gas emissions are also increasing year by year, the ecological environment has been seriously damaged, leading to the rising of the environment at the same time is also facing severe environmental challenges and huge pressure to reduce emissions, so, How to deal with the problem of climate warming is particularly important in China.
Study on Eco-environmental Evaluation of Southwest Frontier Ethnic Areas Based on SWOT-AHP
Authors: Du Fang , Liu Yang 
Published: March 2020

Abstract
The article uses the SWOT analysis framework to analyze the advantages, disadvantages, opportunities, and threats of the environment in the ethnic minority areas of the Southwest Frontier, then judges the importance of each dimension of influence in the SWOT. In order, the environmental governance model of the southwest ethnic region was put forward, and strategic choices were made for the environmental governance of the southwest ethnic region.
Relationship between Particulate Matter Exposure and Inhaled Amount for Different Exercise Patterns of Healthy Adults
Authors: Li Xiyuan , Chen Cai , Li Wei , Ma Dedong 
Published: March 2020

Abstract
Air pollution has increasingly become a threat to people's daily life. Exposure to air pollution will have a negative impact on people's health. However, little research has been done on the impact of air pollution on people's different ways of exercise. The purpose of this study is to explore and determine the relationship between particulate matter that has an aerodynamic diameter of 2.5 microns or smaller (PM2.5) exposure and different exercise patterns of healthy adults. Thirty volunteers were recruited and validated by the equivalent model of PM2.5 approximate inhalation volume-time. The predictive model of PM2.5 particulate matter exposure (y) and time (x) was derived as follows: y = 1.4663x-593.41. It is concluded that when people are exposed to air, the shorter the exercise time, the less PM 2.5 will be inhaled. Therefore, when people exercise outdoors, the use of fast running will be the best way of reference, and the amount of PM2.5 inhaled is the least.
Analysis of the Influencing Factors of Industrial Air Pollution in Shenzhen
Authors: Xu Sheng 
Published: March 2020

Abstract
As one of the central cities of the Guangdong-Hong Kong-Macao Greater Bay Area (GBA), Shenzhen has excellent air environment performance. Based on the construction of Kaya identity and LMDI method, this paper decomposes the SO2 emission of Shenzhen industry in 2009-2016 and explores the impact of seven factors on the SO2 emission change of Shenzhen, including population, development level, industrial structure, energy structure, energy consumption intensity, energy pollution intensity and end treatment. The results show that: population and development level factors have the effect of increasing emissions, industrial structure and energy structure factors have less impact, while energy consumption intensity, energy pollution intensity and end treatment factors have the obvious effect of reducing emissions. Combined with the current situation of development, it is suggested that Shenzhen should promote the upgrading of industrial structure and energy structure, promote the progress of production technology, and strengthen the end treatment. Other cities in GBA should actively learn from the relevant measures and governance experience taken by Shenzhen to improve the capacity of industrial air pollution reduction.
Carbon emissions influence factors and peak forecast study of China
Authors: Li Lin , Xue Weixian 
Published: March 2020

Abstract
Global warming is one of the most serious challenges facing mankind in the sustainable development of twenty-first Century. Related studies have shown that 90% of the probability of global warming may be caused by excessive emissions of greenhouse gases (GHG), which will pose a serious threat to the survival and development of human beings. To actively respond to the climate change, The Chinese Government promised that the carbon emissions will peak around 2030 in Paris Climate Change Conference. In order to realize the smooth progress of carbon emission reduction, it is necessary to understand China's carbon emission reduction factors, make clear the time of carbon emission and explore the potential of carbon emission reduction, and finally find a way of carbon emission reduction in accordance with China's national conditions.
Study on Estimation and Improvement of Agricultural Carbon Emission Efficiency in China
Authors: Wu Haoyue , Luo Luxi , Chen Wenkuan 
Published: March 2020

Abstract
In order to have a better understanding of agricultural carbon emission efficiency in China and in east, west and central regions, slack based measure (SBM) under the undesirable outputs is used for measuring the agricultural carbon emission efficiency, where the agricultural carbon emission in 2006 to 2015 in 30 provinces of China is estimated as undesirable output. Then the input-output looseness is used for exploring the reasons for the efficiency difference in different regions and their improvement direction. The results show that the efficiency in east is high and stable, and that in central and west is low. In terms of the whole country, the two indexes with the biggest room for improvement are agricultural capital input and land input. The redundancy rates of agricultural capital input in the three regions are relatively high, while those of land input are high in the central and west regions. This paper aims to provide some references for making rational policies on agricultural carbon emission reduction with regional differentiation and overall coordination.
The response of domestic tourist in tourism city when encounter the haze weather: a case study of Xi’an, China
Authors: Yang Junhui , Xia Luxi 
Published: March 2020

Abstract
Under the background of the haze’s influence to tourism, this study takes Xi’an, China as a case to explore the response characteristics of domestic tourists to the haze weather in tourism cities, and draws the conclusion as follows. First, although the suddenly severe haze weather will causes the inconvenience of travel and the decline of tourism quality, but the tourists still take the urban public transport to go on their trip by the negative ways, such as changing the tourism destination or ignoring the haze’s influence. When the tourists face the destination choice, they generally prefer the indoor tourism destinations which are less affected by haze weather, but the juvenile and low-educated tourists still prefer outdoor and suburban tourism destinations even if encountering the haze in their trip; Second, the tourists are very dissatisfied with the tour in the haze weather, and the degree of haze’s influence on tourists' perception is generally showed as “photograph > vision >experience> mood”, but the tourists with different characteristics have different perceptions to the haze; Last, the tourists’ attention rate has increased significantly after experiencing haze weather in this tour, but the tourists with different characteristics have a significant differences in the growth rate of haze’s attention.
Study on Effects of Black Soldier Fly Feces on Rice Growth
Authors: Wu Xiang , Cai Ruijie , Wang Xiaobo , Wu Nan , Xu Xiaoyan 
Published: March 2020

Abstract
In order to rationally apply organic fertilizer from black soldier fly (BSF) feces, the effects of different amounts (0, 2%, 4%, 6%, 8%) of BSF feces on rice growth were studied through rice pot experiments. The results showed that the dry matter mass and the yield of rice treated with 4% BSF feces were the highest, compared with the control, which were increased by 40.20% and 49.59%, respectively. While the application of 8% BSF feces inhibited the rice plant height, above-ground dry matter mass and rice yield, which were reduced by 9.98%, 22.59% and 22.66%, respectively. The 4% BSF feces promoted the growth of rice and increased yield, which is an reasonable amount of fertilizer.
“NaClO2-Sea Water” Wet Denitrification Technology Using NOx Treatment Technology in the Desulfurization and Denitrification of Ship Exhaust Gas
Authors: Chen Peng 
Published: March 2020

Abstract
To minimize the emission pollution of nitrogen oxides (NOx) in marine diesel engine exhaust, based on the existing NOx treatment technology, the "NaClO2-sea water" wet denitrification technology was further proposed. The denitrification performance of NaClO2 solution in seawater and NaClO2 solution in fresh water was analyzed by self-designed and built experimental platform. Moreover, the effects of the temperature of the absorption solution, the initial concentration of NaClO2 and the concentration of NO in diesel exhaust gas on the denitrification performance of NaClO2 sea water solution were studied. The experimental results showed that the denitrification rate of NaClO2 solution with seawater as solvent was slightly lower than that of NaClO2 solution with fresh water, but the denitrification duration of seawater solution had obvious advantages over that of fresh water solution. In addition, by increasing the temperature of the absorption solution and the initial concentration of NaClO2 and decreasing the concentration of NO, the denitrification rate of NaClO2 sea water solution was increased. Whereas, if the temperature exceeded a certain limit, the continuous denitrification time of the solution would be decreased. Therefore, “NaClO2-sea water” wet denitrification technology has the advantages of cheap raw materials and long continuous denitrification time. High denitrification efficiency can be achieved by optimizing reaction conditions, so it can be used for denitrification of marine diesel engine exhaust gas.