bluuebunny/crossref_metadata_2025_split huggingface dataset:
Landscape Evaluation of Color-leaf forest from the Perspective of Different Scales: A Case of Jinyang Village in China
Authors: Lu C T , Jiang D , Huang M , Wen Q , Liu X 
Published: March 2020

Abstract
With the development of forest tourism, Color-leaf forest has gradually become one of the most popular tourism destination. Based on related researches about forest landscape evaluation, this paper takes Jinyang village as the research object, which is known as the “Western Ginkgo No. 1 Village”, to conduct scenic beauty evaluation (SBE) on different scales of the same landscape. The result shows that the landscape outside the forest is affected by terrain changes, overall landscape combination, landscape contrast, human landscape, and human activities; the landscape inside the forest is affected by diameter, color of the leaves, composition and density of the forest, and leaf coverage. The results will provide some references for the practice of forest landscape planning in China.
Research on synthetic formula of a quick-drying type of radioactive contamination detergent
Authors: Wang J , Liu G Q , Zheng L , Zhao L 
Published: March 2020

Abstract
To synthesize a quick-drying type of radioactive contamination detergent, a solvent type of detergent based on polyurethane was designed. And the synthetic formula of the detergent was studied by theoretical calculation and experiment. Through theoretical calculation, the basic molar ratio of toluene diisocyanate, chain extender, and polyether polyol were 1.73:0.73:1. The effects of the type of chain extenders and the content of catalysts on the performance of decontamination material were studied by formula experiment. The optimized formulation of detergent was obtained and a quick-drying type of radioactive contamination detergent was synthesized by prepolymer process. The decontamination effect of the detergent on uranium dust was verified on different surfaces, and both decontamination rates exceeded 90%.
Study on Energy Requirement for CO2 Capture with Aqueous Ammonia Solution
Authors: Hu Bing 
Published: March 2020

Abstract
As a CO2 absorber, ammonia solution has a good application prospect. However, the high energy consumption of the process of removing CO2 by ammonia water will bring a significant reduction in the power generation efficiency and a significant increase in the cost of power generation when it is used in coal-fired power plants. In this paper, the energy consumption of CO2 removal process with ammonia solution is studied, through parameter optimization, process design and absorbent improvement, the energy consumption of ammonia decarbonization process is reduced. Economic analysis of ammonia decarbonization system is done when it is used in large coal-fired power station.
Differences of sugar components in Different Mulberry Cultivars during its ripening
Authors: Gao Xiaomin , Hou Qi , Ma Zhiling 
Published: March 2020

Abstract
In this paper, seven mulberry varieties were used as experimental materials, and the composition and content of soluble sugar in different varieties of mulberry during its maturation process were analyzed by high performance liquid chromatography. The results showed that the changes of fructose and glucose content in different maturity of mulberry were basically the same during the ripening process, which reached the maximum in the color-changing period and slightly decreased in the mature period, among which the composition and content of soluble sugar in Taiwan long fruit mulberry were significantly different from other varieties; Fructose and glucose components were all detected in seven mulberry varieties, and only sucrose in Taiwan long-fruit mulberry varieties. This finding provides a scientific basis for the breeding of mulberry varieties and the study of sugar accumulation patterns of different varieties.
Adsorption of Rhodamine B wastewater by sulphur acid modified fly ash
Authors: Wang Manning , Yan Tingchun , Wang Yuhang , Jin Mingji , Quan Yue 
Published: March 2020

Abstract
In this study, fly ash was modified using sulphur to remove Rhodamine B(RB)from aqueous solution. This paper discussed the influence of adsorption time, modified fly ash dosage, pH value, initial concentration on the removal efficiencies. The results showed that 50.0 mL RB wastewater whose concentration was 10.0 mg/L, the adsorbent dosage was 0.3000 g, the pH was 2.0, adsorption time was 60.0 min, the removal efficiencies(RE) and elimination capacity (EC) were 84.68% and 1.41 mg/L, respectivly. The modified fly ash adsorption of RB obeyed the Freundlich isotherm equation, belong to the multilayer adsorption. The adsorption process was accorded with second kinetics reaction of Lagergren. The results implied that fly ash can be effective used as adsorbent to RB wastewater.
Calculation of Carbon Emission Baseline in the Operational Stage of Public Institutions——Summer Heat and Winter Warm Region
Authors: Wang Hua , Zhao Yuqing , Zhu Xiaojiao 
Published: March 2020

Abstract
Based on the data of carbon emission Statistics Platform of public institutions, the baseline of carbon emission of government agencies, hospitals and schools in the Summer Heat and Winter Warm Region of China is calculated by the method of quarterback analysis. The results showed that the carbon emission baseline of three types public institutions are 0.01 tco2 / m2, 0.04 tco2 / m2 and 0.03 tco2 / m2, respectively. The results provide a theoretical basis for public institutions to reduce carbon emissions.
Visual aesthetic evaluation of highways in subtropical mountains areas
Authors: Huang Cheng-Cen , Xu Guo-Ping , Yang Hua , Wei Ming , Jia Li-Qiang , Chen Liang , Hu Hao , Wang Zhao-Ming 
Published: March 2020

Abstract
With the development of economy, the road construction of our country gets a rapid progress. Especially in mountain roads, the influence of road construction on environment has increasingly been focused. The environmental problems of road construction on project are mostly embodied in those problems of water, air, and ecology. landscape, this paper is taking the Baise-Leye highway as the study area, using the remote sensing and uc-winroad to assess the view of highway. The landscape consideration of public roads mainly focuses on the internal coordination and the protection and use of topography. The purpose is to form highways with smooth and changeable visual landscape corridors.
Effects of Straw Mulching on Microbial Quantity in Maize and Broccoli Soil in Dianchi Lake Basin
Authors: Li Mingrui , Zhan Fangdong , Li Yuan , He Yongmei , Wang Jixiu , Li Chengxue , Li Bo 
Published: March 2020

Abstract
Field experiments were conducted in Dianchi basin to study the effects of straw mulching on the quantity of ammoniated bacteria, actinomycetes, and fungi in maize and broccoli soil, using dilution plate counting method. The results showed that: (1) Compared with bare soil and uncovered soil, plastic mulching and straw mulching could increase the number of microorganisms in Maize soil. Straw mulching could significantly increase the number of fungi in maize soil, reaching 6.5×104 CFU·g−1 dry soil, which was 2.0, 1.4 and 2.7 times as much as that of plastic mulching, uncovered and bare soil respectively. The effects of straw mulching and plastic mulching on the number of other types of microorganisms in maize soils were not significantly different. (2) Compared with bare soil, straw mulching could increase the number of fungi in broccoli soil by 83%, and plastic mulching could increase the number of actinomycetes and fungi. Straw mulching could increase the number of microorganisms in soils, which is of great significance to clarify the microbial mechanism of straw mulching to reduce non-point source pollution.
Research on crushing and recycling of waste concrete
Authors: Ai Wenbo , Liu Hongmei , Zhang Jian , Lv Shuaishuai , Xu Qian , Li Huanhuan 
Published: March 2020

Abstract
The development of recycling waste concrete in China and abroad is reviewed in detail together with a brief review of the recycling technology of waste concrete. Advantages, disadvantages and properties of recycled coarse aggregate, fine aggregate and fine powder are discussed through extensive analysis of the literature, and new trends in recycled material development are also presented.
Research On “three public” Dispatching Evaluation System Considering Energy Conservation and Emission Reduction
Authors: Yu Tao , Huang Yupeng , Zhou Bo , Zhao Wenhui , Li Ruan , Wang Shangjia 
Published: March 2020

Abstract
Currently, the existing evaluation indicators of “three public” dispatching only focus on the implementation of annual power generation plan, ignoring the efforts made by thermal power enterprises to participate in energy saving and emission reduction and cross-provincial and cross-regional power substitution in the implementation of power generation plan. In order to reasonably assess the dispatching completion of thermal power plants, a “three public” dispatching evaluation system based on efficient utilization of clean energy is proposed. The system is composed of power generation planning indicators, energy substitution indicators across provinces and regions, and emission reduction indicators. The efforts of thermal power enterprises to participate in energy saving and emission reduction and energy substitution across provinces and regions to promote energy efficient utilization are fully considered. Finally, the simulation results show that the validity and rationality of the “three public” dispatching evaluation system based on the efficient utilization of clean energy can provide ideas and directions for the design of “three public” dispatching indicators, which has a certain reference value.
Effect of Gibberellin Treatment on Dormancy-breaking and Germination of Cherry Seeds
Authors: Wang Yan , Zhang Jing , He Wen , Yang Shaofeng , Wang Xiaorong 
Published: March 2020

Abstract
Cherry (Cerasus Mill.) species are important agricultural crops with high economic and ornamental values. The seeds of stone fruits have a long dormancy period after harvest, which cannot germinate and grow until the dormancy has been broken. In order to break the dormancy and speed up the gremination of cherry seeds, we studuied the effect of GA3 treatment on the dormancy-breaking and germination rate of Chinese cherry and sweet cherry seeds without cold stratification. The results showed that GA3 treatment significantly increased the germination rates of cherry seeds, reaching the maximum value of 64%, 24% and 40% at the concentration of 100 mg•L−1 of GA3 for cultivated and wild Chinese cherry, and sweet cherry. In addition, GA3 treatment obviously speed up the germination index of cherry seeds, reaching the maximum value when immersing seeds with 100 mg•L−1 of GA3. Therefore, it is necessary to cultivate cherry seedlings by GA3 treatment.
Study on combustion and emission of Biodiesel Engine with different angle of oil beam
Authors: Fu Yue , Zheng Pei 
Published: March 2020

Abstract
In order to reduce the excess pollutants caused by environmental factors, on the basis of the installation of post-treatment device, through the use of converse software, the simulation research on the combustion process of non road diesel engines in the cylinder was carried out in the cold environment, and the combustion processed and emission reduction of diesel engine were optimized under the condition of only changing the angle of oil beam. The results show that the temperature in cylinders is the highest, and the pressure in the cylinder is larger, the equivalence ratio and eddy current intensity in cylinder are stronger, the emissions are lower, and the emissions of NOx and soot are the lowest under the angle of 164° fuel beam.
Fine particle emission from agriculture soil erosion based on wind-tunnel experiment
Authors: Lu Hongyue , Liu Chunyu , Wang Yaqian , Zhang Hui , Sun Yanling , Mao Jian , Ma Zhenxing , Chen Li , Gao Shuang 
Published: March 2020

Abstract
PM2.5 generated from soil can cause air pollution problem in China. Therefore, controlling soil dust is important to improve air quality. The study investigated the physical and chemical properties of the soil (moisture content, CaCO3, OC, EF) in a city of China and used a wind tunnel for simulating wind erosion process to explore the PM2.5 emission properties from soil surface. Experimental conditions include three sampling heights (20, 40 and 70 cm above the ground) and five wind speeds (from 4 to 12 m/s with the increment of 2 m/s). The studies showed that PM2.5 emission rate from soils obeyed exponential function increment. Emission rate ranged from 0.3 to 233μg/m2·s. Sandy loam cinnamon with lowest moisture content and CaCO3 had the largest emission rate. Soil type, wind speed and sampling height from soil surface all had significant impact on emissions rate.
Effects of atrazine on the black community land function and role of microbial ecology
Authors: Zhang Yaosheng , Tian Long , Ma Ruixi , Wei Yanxiang , Yang Jiali , Sun YanBin , Li Lan 
Published: March 2020

AbstractBy measuring the concentration of atrazine stress and different culture days, the abundance of key genes in soil nitrogen transformation was studied by means of real-time PCR with the increase of atrazine stress time. The abundance of soil nitrogen-fixing function gene (nif-H) increased significantly with the increase of time in the middle and late culture period (15-30 d), indicating that the abundance of soil nitrogen-fixing function gene was promoted; soil ammonia oxidation. The abundance of functional gene (amo A) was reduced at the low concentration of atrazine (0 mg/kg, 20 mg/kg), and then decreased with increasing stress time, while at high concentration of atrazine. Under the treatment of (100mg/kg), with the increase of time, the abundance of soil ammonia oxidation function increased first and then decreased, indicating that the abundance of soil ammonia oxidation function gene was affected in the process of culture. II Based on high-throughput sequencing technology, the results of soil nitrogen fixation and ammonia oxidation community diversity showed that the functional gene diversity of soil samples was affected by the concentration of atrazine and stress time. According to the analysis of soil diversity index, nitrogen-fixing functional genes of soil samples treated with atrazine at 0 mg/kg, 20 mg/kg and 100 mg/kg were tested at the late stage (30 d). The diversity index of (nif-H) was higher than the mid-test (15 d). At the beginning of the experiment (0 d), the ammonia functional gene (amo A) diversity index of soil samples treated with atrazine concentrations of 0 mg/kg, 20 mg/kg and 100 mg/kg was higher than that in the middle of the experiment (15d), studies have shown that the nitrogen and ammonia oxidation functional gene diversity is affected under different concentrations of atrazine stress time. The distribution of the nitrogen-fixing gene (nif-H) and the ammonia-oxidizing functional gene (amo A) in the horizontal sample community structure showed that the nitrogen-fixing gene was in the middle of culture (15 d), and the genus Burkholderia and Rhizobium were earlier than the culture period (0d) indicating that the above two types of nitrogen-fixing microorganisms play a leading role at this stage. Throughout the experiment (0-30 d), the number of nitrogen-fixing functional genes in the blank treatment was higher than 20 mg/kg and 200 mg/kg. The principal component analysis confirmed that the different culture days and different stress concentrations of atrazine had certain effects on the composition of soil nif-H and amo A gene communities.
Study on Induction and Culture of Callus of Citrus grandis cv. ‘Hongmianmiyou’
Authors: Wang Yan , He Wen , Xie Rui , Chen Qing , Yang Shaofeng , Wang Xiaorong 
Published: March 2020

AbstractCitrus grandiscv. ‘Hongmianmiyou’ is mutated from ‘Guanximiyou’, which has been widely cultivated in Sichuan Province because of the attractive appearance, rich nutritional ingredients and trace elements. To effectively cultivate more Hongmianmiyou seedlingsfor production, we established the callus tissue induction system. The basic nutrient medium consisted of MS medium with 3% of sucrose and 0.8% of agar, adjusted to pH 5.8.Various concentrations of 6-benzylaminopurine and 2,4-dichlorophenoxyacetic, as well as polyvinyl pyrrolidone and active carbon, and culture condition were carried out to developprotocols for the in vitro propagation of pummelo. The appropriate formula was MS mediumsupplemented with 1 mg•L−1of 2,4-D,0.5 mg•L−1of 6-BAand 0.05% of active carbon. Explants were cultured maintained under a 16 h photoperiod provided by cool white fluorescent light 1200 Lux after cultured at dark for 7 days. Light green compact callus induced from semi-lignified stems explant of spring shoots in ‘Hongmianmiyou’, reaching 97% induction rate.
Quantifying the impact of climate variability and human activities on the streamflow of the Qingzhang River
Authors: Meng Pengfei , Ren Zheng , Shi Bin , Jia Tengfei 
Published: March 2020

Abstract
Environmental change is the main factor leading to the disturbance of hydrological processes in the basin, the evaluation of which is of great importance to the formulation of water resources planning and management strategies. Non-parametric Mann-Kendall test and Pettitt test were used to diagnose the variation trend and abrupt change of runoff time series of Kuangmenkou station. Based on hydrological and meteorological data, the VIC model was setup to simulate runoff processes. The influence of environmental change on annual runoff was quantified during different human activity period. The results showed that the runoff of the Shizhandao station presented a decreasing trend, and the abrupt change year appeared in 1978. Based on the abrupt change year the study period was divided into runoff base period from 1959 to 1978 and change period from 1979 to 2015. The model has a high applicability to the research area, and the Nash-sutcliffe efficiency coefficient and relative error both meet the requirements of the model of more than 0.80 and less than 10%. During 1979-2015, the impact of climate change and human activities on runoff reduction are 79.8%, and 20.2%, respectively. Human activities are the main driving force of runoff change of Kuamgmenkou station.
Kinetics of Iodine-catalyzed Conjugation of Soybean Oils
Authors: Yan Jie , Huang Huimin , Yang Jinlan , Zhan Qiqi , Tan Chunyuan , Lin Hailin , Wu Guojie 
Published: March 2020

Abstract
Kinetics of iodine-catalyzed conjugation of soybean oils was studied. The results indicated that the conjugation of linoleic acid could be described by means of apparent first-order reaction. The apparent activation energy values and the preexponential factor A were 769kJ/mol and 3.49×108s−1, respectively. The rate equation was .

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Application of total phosphorus sequential injection system in Qingdao coastal area
Authors: Shi Qian , Zhang Yanmin , Sun Zhongliang , Wang Yang 
Published: March 2020

Abstract
An integrated system was developed for automatic determination of total phosphorus in seawater based on sequential injection analysis combined with spectrophotometric detection. The experimental parameters of digestion were optimized based on a univariate experimental design. The upper limit of the linear range of the proposed method was 1000 μg/L. The relative standard deviations (RSDs) of accuray were below ±2% (n=3) and the RSD of presicion was 2.18% (n=6). This system has been successfully applied to determine total phosphorus in Qingdao Coastal area. The F test and t test implied the results of the system had no evident difference with those detected by nutrient flow analyzer in the laboratory.
Study of LSTM Air Quality Index Prediction Based on Forecasting Timeliness
Authors: He Hongna , Luo Fei 
Published: March 2020

Abstract
The change of urban air quality is affected by pollutant emission, meteorological conditions and other factors, so air quality prediction is a multi-variable, nonlinear and time-series problem, which is difficult to be predicted by traditional methods. To solve this problem, a circular neural network based on Long Short Time Memory (LSTM) is proposed to predict Air Quality Index (AQI) by considering the pollution sources, meteorological conditions and time series. The transfer entropy is used to select the meteorological factors that affect the strong change of AQI. Combined with the prediction time, the prediction accuracy of this algorithm in the future 0∼48 hours within different forecast time is studied and compared with the traditional BP neural network and the Gated Recurrent Unit (GRU), and then the Root Mean Square Error (RMSE) was used for evaluation. Taking the measured data of hourly air quality index of Chengdu from January 1, 2018 to September 15, 2019 and the measured data of meteorological factors in the same period as experimental examples, the experimental results show that LSTM has better prediction accuracy and robustness than traditional neural networks in the aging of 0∼48h forecasting, and has the advantages of temporary forecasting and short-term forecasting. At the same time, it is verified that GRU has no obvious advantage in air quality index prediction application compared with LSTM.
Control Strategy of Amplitude Regulation and Frequency Tracking for Wireless Charging Considering Load Characteristics
Authors: Wang Songcen , Zhang Yanan , Wei Bin , Tong Qingbin 
Published: March 2020

Abstract
When charging wirelessly, the load will change and the resonance state of the system will change accordingly. Especially when the load is not purely resistive, the efficiency and power will decrease. In order to improve the transmission efficiency and output power of the system, a control strategy control strategy of phase shift control and frequency tracking for wireless charging considering load characteristics is proposed. The control strategy adopts the frequency tracking control mode to realize the frequency tracking control through the phase of the voltage and current output of the primary side high frequency inverter of the acquisition system. The system always maintains the resonance state under the condition of variable load, and realizes efficient energy transmission; The loop control principle adjusts the phase of the voltage and current in real time. The simulative and experimental results verify the feasibility of the proposed control strategy.
Power Tower extraction method under complex terrain in mountainous area based on Laser Point Cloud data
Authors: Zhao Jian , Wang Di , Long Xin , Wu Shaohua , Hu Wei 
Published: March 2020

Abstract
The accurate extraction and location of pole tower point cloud in massive laser point cloud data of transmission line is the basis of airborne laser LiDAR line inspection application. In view of the current complex mountain terrain pole tower point cloud extraction depends on manual intervention, low accuracy, low efficiency and so on. An automatic extraction method of line tower point cloud based on three-dimensional grid spatial distribution feature is proposed in this paper. Firstly, the three-dimensional grid of the original point cloud of the preprocessed transmission line is divided, and the spatial distribution characteristics of the point cloud in the statistical line corridor are analyzed (point cloud density, elevation histogram, terrain elevation distribution, ground object elevation distribution). In this way, the tower point cloud is extracted, and the least square space line fitting method is used to accurately locate the tower position, so as to realize the automatic extraction and accurate location of the tower point cloud. The extraction algorithm is verified by the transmission line laser point cloud data obtained from the actual inspection of a power grid company, and the integrity of the extracted tower point cloud data is 95%, and the average positioning error of the tower position is 9cm. The experimental results show that the method has good rapidity and accuracy.