bluuebunny/crossref_metadata_2025_split huggingface dataset:
Multi scale analysis of rainfall in Anhua reservoir
Authors: Zhang Jixiang , Guo Huifang 
Published: September 2020

Abstract
Anhua reservoir is located in Zhuji City on the upper reaches of Puyang River (the upstream of reservoir area involves Baima town of Pujiang County), which is an important medium-sized reservoir mainly for flood control. In this paper, the continuous wavelet transform of wavelet analysis is used to analyze the rainfall of Anhua reservoir in multi-scale. The results show that the main period of rainfall in Anhua reservoir is 6-33 years. In the 33 year scale, the rainfall from 2020 to 2030 is relatively dry, while in the 6-year scale, the rainfall from 2020 to 2023 is relatively dry. It can be seen that the rainfall in Anhua reservoir will be less in the next few years, so the reservoir management department should take measures in advance.
Research on Disaster Prevention and Mitigation System Construction Based on Marine Business Work
Authors: Sun Yuxi , Chen Chen , Tan Jun 
Published: September 2020

Abstract
As global climate change intensifies, the po Marine business work, disaster reduction, disaster prevention, spatial analysis, risk synthesisability of marine disasters becomes greater and greater. In order to reduce the damage caused by marine disasters and to be able to shoulder the responsibility of major powers in facing marine disaster risks, China needs to establish China’s domestic marine disaster prevention and relief system and international cooperation mechanism for disaster prevention. On this basis, a preliminary idea for establishing a disaster risk assessment system was proposed. After the system is completed, the spatial analysis function based on GIS, combined with the disaster risk assessment database, can quickly, practically and accurately provide special disaster risk results for disaster prediction and prediction of relevant departments and select effective and scientific disaster prevention, mitigation and relief Measures provide the basis.
Prevention of Metal Tailings Based on Ecological Safety
Authors: Miao Zuohua , Yan Cheng , Liu Likun , Ren Lei , Chen Yong 
Published: September 2020

Abstract
The tailings pond is a place for storing industrial solid wastes in mines. Due to insufficient mining, the tailings contain a variety of heavy metals. The heavy metals discharged into the tailings pond will pollute the soil and groundwater and affect the ecological environment. The comprehensive utilization of tailings is inappropriate. Will cause pollution transfer. This article analyzes the environmental pollution and ecological damage of the tailings pond, and puts forward the comprehensive utilization of tailings, the anti-seepage of the tailings pond and the environmental supervision during the construction period, follow-up inspection, tailings treatment and ecological environmental protection and restoration treatment, which effectively alleviates the tailings pile. Environmental pollution and safety hazards caused by after the tailings mining is completed, effective ecological reconstruction measures are taken to reduce pollution and protect the surrounding environment.
Tracking the Motion of Large-Scale Lightning Events based on the Optical Flow Method
Authors: Zhu Yongqiong , Min Wu , Cao Zhenwei 
Published: September 2020

Abstract
Lightning is a meteorological phenomenon and can cause the property damage and the loss of the lives. Tracking and warning the lightning is a very important issue in safety control and management for many fields. Some devices and corresponding analysis methods are suggested for this objective. Nowadays, the satellite and radar are two main devices used to track and warn lightning. However, their output is an indirect signal for the tracking and warning. So the false positive problem exists if only based on these two types of devices. Instead, this work proposes a new method. We use another kind of data from the lightning locator, which is the only device could accurately record the time, position and strength for one lightning occurrence. Meanwhile, in order to effectively apply this type data, an integrated method based on the optical flow method is proposed. On a real lightning process, the experiment’s result proves our method’s performance. Unlike the traditional methods that only track the representative center to stand for the motion of a group of lightning, the most outstanding advantage of our methods is the capability of detecting the minor motion of large-scale lightning events. Therefore, it could be used for the elaborate lightning warning.
Application Analysis of Immobilized Bioremediation Preparation in Oil Spill Contaminated Shore
Authors: Wang Xiaohui , Liu Yang , Song Chunyan , Yuan Xin , Zhang Qiong , Miao Yongxia 
Published: September 2020

Abstract
The thesis uses self-developed immobilized bioremediation preparations to carry out on-site trials of bioremediation of oil spilled contaminated beaches, with a view to solving the practical problem that traditional dry powder / liquid bioremediation preparations are difficult to be applied on site in oil contaminated shores. The degradation characteristics of the marine petroleum degrading bacteria group DC10 were studied, and a degrading bacteria agent based on the bacteria group was developed and used in the bioremediation experiment of Dalian Oil Spilled Beach, and the intertidal and upper tidal belts were investigated by the degrading bacteria agent The degradation of oil pollution was evaluated by analysing the degradation rates of C17 / hopene, C18 / hopene, and total alkane and total aromatics. The study found that the degradation rate of the degrading bacteria group DC10 to petroleum under laboratory conditions was higher than that of the constituent strains. The degradation rate of petroleum in one week was about 60% higher than that of the control, and it could degrade most alkanes and aromatics.
Analysis of Bio-in-situ Remediation Technology of Petroleum Contaminated Soil Based on Enhanced Electric Power
Authors: Zhao Jingang , Qi Guangfeng , Huang Shan , Gao Yan , Yan Zheng , Wang Xiaohui 
Published: September 2020

Abstract
In order to explore the strengthening effect of the electric field on biodegradable oily soil, through designing 5 gradient electric fields of 0V / m, 50V / m, 100V / m, 200V / m, and 250V / m, the growth and reproduction changes and behavioural dynamics of the electric field on organisms were studied the impact of learning. On this basis, the effects of electric field on the oil-lowering ability of organisms, the accompanying migration characteristics of populations, in situ active replenishment, and the distribution characteristics of nitrate ions and sulphate ions in oily soils were analysed. The results show that when the electric field strength is 100V / m, the biological growth and reproduction rate is the highest, the number of bacteria is the largest, and the loss of nitrogen nutrients is the smallest; the effect on the oil-reducing ability of the oily soil is accordingly coupled effect> single bacteria effect> single electricity effect It shows that the effect of electric field coupling bioremediation technology on oily soil is remarkable.
Preparation and performance of sludge-based desulfurizer by calcification
Authors: Song Xin , Ge Shifu , Li Yuan 
Published: September 2020

Abstract
The study used Ca/TS, water content, particle size and additives as control variables to prepare sludge-based desulfurizers. An experimental setup was built up to investigate the desulfurization effect. The 5-factor and 4-level orthogonal experimental scheme was designed to study the factors affecting the sulfur capturing efficiency of sludge-based desulfurizer. The effects of the types and ratios of additives on the sulfur capturing rate were studied with sodium carbonate, iron oxide and acetic acid as additives. The result showed that the optimal condition to produce calcification sludge desulfurizer (CSD) was: 0.425~0.6mm of diameter desulfurizer, moisture content of 30%, and ferric oxide ratio of 6%. The optimal desulfurization condition was the combustion temperature of 900 °C, calcium to sulfur molar ratio of 2.0 and the SO2 concentration of 1%. In this case, the sulfur capturing ratio was 61.86%, higher than that of pure calcium oxide. The pore structure of the sludge-based desulfurizer showed that compared with the porosity of pure calcium oxide of 32.02% and the specific surface area of 19.80 m2/g, the sludge-based desulfurizers increased to 36.94% and 28.32 m2/g, respectively. The degree of irregularity is low, which greatly improves the sulfur-fixing effect of the sludge-based desulfurizer.
Research on Resident Garbage Sorting and Recycling System Based on Green Environmental Protection Technology
Authors: Yu ChuanDong , Du Nan 
Published: September 2020

Abstract
Separate collection of garbage is an important means of reducing, harmless and recycling urban household garbage, and is of great significance to the growing garbage threat. The current urban garbage collection work is gradually carried out, but the actual results of the corresponding classification collection work are not obvious. This article studies the classification and collection mode of residential area based on the concept of environmental protection priority, and hopes to provide a reference for the study of garbage collection mode.
The Effects of Water Resource Restrictions on Sustainable Development in Semi-Arid Regions: A Case Study of Tongliao City, Inner Mongolia
Authors: Xu Dongping , Liu Yanhong , Zhao Bo , Xue Xiaojie , Zhu Jiwei 
Published: September 2020

Abstract
Water resource is a constraining factor in the sustainable development of semi-arid areas (SAAs). In order to study the constraining effects of scarce water resources on the sustainable development of SAAs more accurately, this paper selects the typical representative of SAAs, Tongliao City, as the case study area, and water resource System Dynamics (SD) model was established for the City that described the constraints and the resultant restrictions on sustainable development. The operation of the SD model showed that under the traditional development path, Tongliao City maintained rapid economic growth even though restriction of its water resources had a significant constraining effect. The simulation showed that in 2018, the first water shortage occurred in Tongliao City and the situation of water shortage was getting worse. By 2030 the water shortage will reach 28.9%. Industrial production and urban living will utilize all of the available ecological water and, in consequence, the natural environment will seriously deteriorate. Analysis of the simulation results has shown that, under the existing development path, the structure of water consumption in Tongliao City is irrational. Continuation of the established development model will result in a drastic shortage of water resources, and will curtail significantly the sustainable development of the city. The results of the present study have demonstrated conclusively that shortage of water resources has become the key factor that will restrict the sustainable development of SAAs. Thus, in the future, development methods should be changed to improve the utilization efficiency of water resources in order to achieve sustainable development in SAAs.
A comparative study of seagoing waterway between Hangzhou Bay and world-class bays
Authors: Pan Dongzi , Li Ying 
Published: September 2020

Abstract
Zhejiang provincial government proposed the construction of Zhejiang Greater Bay Area (GBA) in 2017. River-sea intermodal transport is the core competitiveness of the bay area (BA). Compared with the sea shipping of the world-class BAs, the seagoing waterway of Qiantang River has long been the short board of regional economic development. Based on the core cities of the three BAs in the world, this paper makes a comparative study on the seagoing waterway of the Qiantang River Estuary and Hangzhou Bay, summarizes the history and current situation of the research on the seagoing waterway of the Qiantang River, and gives suggestions on the seagoing waterway of Hangzhou Bay with reference to the development path, strategy and successful experience of the world famous BAs.
GaN nanowires decorated with Pd for methane gas sensor
Authors: Li Shida , Huang Hui , Zhao Danna 
Published: September 2020

Abstract
In this study, palladium (Pd)-decorated gallium nitride (GaN) nanowire have been prepared for room-temperature methane (CH4) gas sensors. The material was fabricated via MOCVD method combined with subsequent magnetron sputtering process and characterized by SEM technique. The SEM images indicate that the presence of different thickness of Pd film on the surface of the nanowires. When used for methane gas sensing, with the assistance of UV light, the 10nm Pd-decorated GaN nanowire sensor has the highest response to 200ppm methane, which were about 2 times higher than that of pure GaN samples. What’s more, 10nm Pd-decorated GaN sensor also has the lowest detection limit (20ppm) and the shortest response time (<10s). Thus, the application of Pd-GaN nanowire as methane gas sensor will have board prospects.
Multi-class weather classification based on multi-feature weighted fusion method
Authors: Li Zhiqiang , Li Yingxiang , Zhong Jiandan , Chen Yongqiang 
Published: September 2020

Abstract
Weather classification, which aims to prevent extreme weather from affecting people’s life and property, has recently become a significant interest in image classification. The traditional weather recognition methods always adopt expensive sensors and human vision as auxiliary. However, they perform not very well. Although the Convolutional Neural Networks (CNNs) have shown the state of the art performance on image classification recently, for weather classification, it is a challenging task because it relies on weather-sensitive cues such as the various illumination, contrast and the clutter background of the weather images. To address this issue, a method named multi-feature weighted fusion is presented in this paper. Firstly, we extract the well-chosen weather-specific features such as haze, contrast, brightness, etc., and then fuse these features with data-driven CNNs feature to form high dimensional vectors. Moreover, to increase the recognition performance, various weights are adopted for weather-specific features and CNNs feature to learn an adaptive five-class weather conditions classifier. The extensive experimental results demonstrate that the proposed method obtains better performance than the method using CNNs feature alone.
Prediction of PM2.5 value by BP artificial neural network in honeybee colony
Authors: Ai Jiaoyan , Gong Wenyang 
Published: September 2020

Abstract
In this paper, propose a BP artificial neural network optimized by artificial bee colony algorithm with a PM2.5 value for the current Nanning area. In this paper, aiming at the shortcomings of BP neural network prediction, the global optimization performance of artificial bee colony algorithm is used to provide the optimal global initial value for BP neural network and avoid the neural network falling into local optimization. To make the prediction model more accurate. PM2.5 is a small part of the atmospheric chemical composition, which has a great impact on the air quality and thus on the human body. With people’s attention to their own health nowadays, it is of great practical significance to predict the PM2.5 content in a certain period in the future. The results show that the average square error and average relative error of the prediction of PM2.5 content based on BP artificial neural network are only 1.25% and 2.46% respectively. BP artificial neural network based on bee colony can be well applied to the prediction of chlorophyll a content, providing a reference for the prediction of PM2.5 content in a certain period in the future.
Bibliometric Analysis of the Synthesis of Nanocatalyst (1999–2018)
Authors: Feng Lisha , Chen Qiu 
Published: September 2020

Abstract
Taking the Web of Science database as the data source, and taking 3047 SCI documents published in the field of nanocatalyst synthesis published between 1999 and 2018 as the analysis objects, the annual publication volume, space-time distribution, research institutions, and authors of the relevant documents were analyzed. Use the visualization software VOSviewer generated literature keywords co-occurrence clustering view, keywords co-occurrence chronology view, and keywords co-occurrence clustering density view, analysis of the research in the field of countries are China and Iran. The research focus is mainly on the design and synthesis of new nanocatalysts, so that the morphology and particle size of nanoparticles can be well controlled, so as to improve the catalytic activity and selectivity of nanocatalysts, and to study the catalytic reaction mechanism. The research frontier mainly focuses on the efficient and green synthesis of nanocatalysts, especially the recycling and reuse of nanocatalysts. The development and utilization of new nanocomposites and nanophotocatalysts with photocatalytic properties, as well as the performance research of other sizes of nanomaterials such as nanoclusters, nanowires, and nanosheets.
Application and Research of Analytical Chemistry in Food Inspection
Authors: Kang Hongling , Yan Rong , Guo Wenjie , Zhang Yingying , Wang Wei , Chen Lihua , Liu Yinan 
Published: September 2020

Abstract
Analytical chemical methods in food production are widely used in food safety testing. High performance liquid chromatography is a type of chemical analysis method that is also commonly used. To this end, the paper will use the application of high-performance liquid chromatography in food detection as an entry point to study the application of analytical chemistry in food detection. High performance liquid chromatography (UPLC) is characterized by stability, ease of use, variable sensitivity and selectivity. It shows better chromatographic resolution, more sensitive analysis, shorter analysis time, and can reduce solvent consumption This article provides a brief overview of the application of UPLC in the rapid detection of dairy additives, food additives, contaminants, mycotoxins, and illegal chemical additives.
Research on the properties of modified water treatment agent for white pulp of pomelo peel
Authors: Liu Yinan , Li Chengsheng , Liao Bing , Kang Hongling , Wang Man , Yan Rong 
Published: September 2020

Abstract
a water treatment agent for white pulp of pomelo peel was developed using commercial Pomelo as raw material, which laid a foundation for the further development and utilization of Pomelo Peel. Indeed adsorption Cu2+, Fe3+ as an index, the effect of modification on the basis of single factor experiment research on the use of sodium hydroxide concentration, pH, adsorbent, adsorption process the time required to the influence of factors such as the adsorption effect, orthogonal experiment as the main experimental method to determine the modification of pomelo peel white pulp desorption process using the adsorption effect of again. The results showed that the modified water treatment agent had higher adsorption efficiency for Cu2+ and Fe3+ in water, and had favourable reabsorption ability, it can be reused and has higher adsorption efficiency. The developed water treatment agent for white pulp of Pomelo Peel has laid a foundation for the adsorption of Cu2+ and Fe3+ in water, the efficient utilization of white pulp of pomelo peel and the invention of production equipment.
Simulation of indoor pollutant diffusion concentration field in passive house based on CFD software
Authors: Wu Huangyuan 
Published: September 2020

Abstract
Due to the good air tightness of the passive house, once there are poor quality furniture materials in the room, it is easy to cause indoor formaldehyde pollution which do harm to people’s health as well as the quality of their life. This article introduces the CFD software to simulate the change of indoor formaldehyde concentration in the passive house when opening the fresh air system to ensure indoor air quality and to employ a new way to the better quality of life of residents. The function of CFD software and two fluid dynamics control equations are introduced in the essay, and the finite difference method of control equation discretization is studied as well. Based on CFD software, the case is analyzed, under which the indoor formaldehyde concentration changes, according to different fresh air system inlet locations. The simulation results show that when the two air outlets of the living room are on the side of the sofa and TV cabinet, and the air outlet of the bedroom is in the corner, the formaldehyde purification rate is better, which a more reasonable air supply method is.
Study on application of regional ecological risk assessment during the development and utilization of Chu Island
Authors: Ma Long , Zhang Ying , Ma Zhizhong 
Published: September 2020

Abstract
Taking natural disaster risk problems in the uninhabited island ecosystem as the main research object and combined with the features of uninhabited island ecosystem, regional ecological risk assessment was carried out with the relative risk model (RRM) taking an exemple of Chu island. According to ‘Weihai Chu island protection and utilization planning (2011~2020)’, the study area was divided into three risk areas, which are key protected area, basic facility area and ecological tourism area. Birds, sea cucumbers and their habitat as the receptors for Chu island ecological risk assessment was selected, and combined with the regional sources of risk occurrence probability, the range and intensity, storm surge, drought and cold wave were the main risk sources in the region. The exposure response relationship of “risk source—stress—habitat—ecological end point” in each risk area was analyzed. We pointed out: (1) in the development and utilization process of Chu island, storm surge is the most influential source of risk in the region, and its influence is far higher than drought and cold wave; (2) the island land resources, especially the vegetation, affected by the risk source is the largest, followed by water and the tidal flat; (3) As the two main functional areas in the development and utilization process of Chu island, the relative risk value of basic facility area and ecological tourism area, which is 1.05 and 0.97 respectively, is larger than key protection area, and its relative risk value is 0.5.
Application of ESMD Method to the Runoff Process in the Arid and Semi-Arid Area
Authors: Wu Kai , Li Lingqi , Zhang Nan 
Published: September 2020

Abstract
The ESMD method was good at finding the optimal adaptive global mean fitting curve, which was superior to the common least-square method and running-mean approach. It was the new development of the well-known Hilbert-Huang transform and could be used effectively in the science researches and engineering applications associated with data analysis from atmospheric and oceanic sciences, informatics and so on. Take the runoff process of West Liaohe River as an example, the test on the observational data indicated that this approach was very feasible.
Automatic water quality arsenic element detection device based on internet of things
Authors: Wang Yujie 
Published: September 2020

Abstract
Arsenic contamination in groundwater is an outcome of anthropogenic or natural sources. The determination of arsenic in water is of crucial importance. Therefore, a portable and integrated device is designed for arsenic detection. Based on ESP32-cam, the reaction is proceeded in automation, accompanying colorimetric detection of copper sheet. Therefore, information concerning the concentration of arsenic will be received by people through the Internet.