bluuebunny/crossref_metadata_2025_split huggingface dataset:
Experimental Study on Catalytic Reduction of SO2 by Rare Earth Compound in the Presence of Oxygen
Authors: Du Zhehua , Lin Xin 
Published: September 2019

Abstract
Compared with a great deal of traditional desulphurization crafts, the catalytic reduction of SO2 with CO to elemental sulfur is considered to be the best technology for the removal of CO2 from flue gas. Adding rare earth oxide CeO2 with variable valences to La2O3formes a mixture of rare earth oxides. By means of dipping CeO2, La2O3 and their mixture, whose carriers are allγ-Al2O3, are used as the catalyst for the reduction of CO2 by CO. Under the condition of oxygen, all kinds of catalyst will be poisoned to some extent. However, the oxygen resistance of the catalyst can be improved by changing the composition of the catalyst. It is found through experiments that this poisoning effect is partially reversible. The structure of the catalyst is not completely destroyed. There is still a great distance from the actual application.
A review of interspecies electron transfer in anaerobic digestion
Authors: Zhang Mingyuan , Zang Lihua 
Published: September 2019

Abstract
Anaerobic digestion (AD) is an effective way to recover energy from organic waste. About 70% of the methane emitted into the atmosphere is derived from the degradation of organic matter by microorganisms under anaerobic conditions. Interspecies electron transfer (IET) is the key link of syntrophic methanogenesis, an in-depth understanding of IET during AD contributes to the rational use of energy. IET mainly includes three modes, namely, interspecies hydrogen transfer (IHT), interspecies formate transfer (IFT) and interspecies direct electron transfer (DIET). This review summarized and analyzed the IET patterns in the AD process, and related metabolic mechanisms and existing studies were explained.
Synthesis and performance of sodium salt of MAA/St/SAS copolymer dispersant
Authors: Tian Qingmei , Zhang Qiang 
Published: September 2019

Abstract
A new type of dispersant for pesticide water dispersible granules (WDGs), sodium salt of methacrylic acid/styrene/sodium allylsulfonate copolymer (SMSA) was synthesized. 90 wt% atrazine WDG was prepared to evaluate the dispersion performances of SMSA. It is found that SMSA has high performance and strong resistance to hard water, and the suspensibility of 90 wt% atrazine WDG before and after hot storage could reach 93.14% and 92.22% in standard hard water, and 87.19% and 85.33% in three-fold standard hard water, respectively.
Effect of Welding Process on Ultrasonic Testing of 9Ni Steel Weld Joint
Authors: Yannan Du , Xuchen Zhu , Weiping Zhu , Xiaoying Tang , Xiaolong Xue , Ju Ding 
Published: September 2019

Abstract
In the world, 9Ni steel with the relatively low price, high strength, low temperature toughness and safety reliability has become the principal material of LNG storage tanks. The presence of coarse-grained microstructures in the weld microstructure has a substantial impact on the ultrasonic testing of the weld. Therefore, an excellent 9Ni steel ultrasonic testing technology is realized for a suitable welding process.
Effects of Living Pterocypsela laciniata and Its Straw on Phosphorus Uptake of Grape Seedlings under Selenium Stress
Authors: Wang Jun , Liu Xingwang , Wang Tie , Yang Liu , Liao Ming’an , Lin Lijin 
Published: September 2019

Abstract
Based on the selenium stress, the effects of living Pterocypsela laciniata and its straws on phosphorus (P) uptake of grape seedlings were carried out. There were some important results and showed that in parts of grape seedlings. The total P content was lower in roots than that in stems, leaves and shoot. Among five treatments, there was quite different about the total P content. Compared to grape seedlings monoculture, living P. laciniata and its straws could significantly increase the total P content in parts of grape seedlings. Among them, applying the leaf straw of P. laciniata in soil made the total P content the highest. For the total P content in root, stem, leaf and shoot of grape seedlings, it was always ordered from high to low: PLG > PG > PRG > PSG > MG. The available P content in soil was a little changed in relation to the total P content in plants. Applying P. laciniata straws also could increase the available P content. On the contrary, grape seedlings intercropping with P. laciniata seedlings decreased the available content, compared to the monoculture. In a word, living P. laciniata and its straws was good for the growth of grape seedlings and improved the P uptake in plants.
Summary of Research Status of Concrete Filled Steel Tubular Truss Structure
Authors: Xie Xinying , Ma Xingzi , Cai Jingwei , Jin Yujie 
Published: September 2019

Abstract
With the development trend of industrialization of building, truss structure is more and more widely used as a simple force structure in engineering applications because of its advantages of light weight, large span, low steel consumption and so on. The key to improve the overall stability, ultimate bearing capacity and seismic performance is to make use of the mechanical advantages of the new materials. This paper expounds the characteristics of concrete-filled steel tubular trusses, introduces its application in bridge engineering and building roof structure, and systematically summarizes the design theories and research results in the field of truss at home and abroad. The feasibility of a new epoxy resin concrete material in the application of concrete-filled steel tubular truss is discussed, and further research work is expected.
Study on Improvement Effect of Saline-alkali Soil by Cationic Modified Biochar
Authors: Yuanchengpeng  , Cai Chen , Cuijingwen  
Published: September 2019

Abstract
The severe soda-alkali soil in the western Songnen Plain was used as the experimental object. Compared with the application of common biochar, the effects of modified biochar on the basic physical and chemical properties, agglomerate distribution, organic carbon and total nitrogen distribution of saline-alkali soil were analyzed. The experiment adopts the indoor culture method, and the use of common biochar (B) and iron modified biochar and calcium modified biochar is 0, 1.5%, 5% . A total of 7 treatments: CK, B1.5, B5, FBS1.5, FBS5, CBS1.5, CBS5. The results show: 1. Modified biochar significantly reduced soil pH with a maximum reduction of 12.2%. Both biochar and modified biochar significantly reduce soil ESP. The reduction effect of FB5 was the most significant in each treatment, which was 58.2% lower than CK, followed by FB5, which was 41.8% lower than CK. The introduction of cations and the significant reduction of ESP showed strong Na+ substitution and adsorption capacity, thereby alleviating soil salt accumulation and improving soil basic physical and chemical properties. 2. Both modified biochar and ordinary biochar increased the content of soil microaggregates (0.053-0.25mm). The modified biochar was significantly higher than ordinary biochar, and the function of improving soil structural stability was stronger. Among them, CBS improvement effect is better than FBS. The ratio of CBS5 treatment increased the microaggregate to the highest, with an increase of 66.4%; the increase of CBS1.5 treatment was 56.2%; the proportion of FBS5 and FBS1.5 microaggregates increased by 51.1% and 32.2% respectively. The geometric mean diameter (GMD) of all treatments was higher than that of CK treatment, in which CBS5 treatment significantly increased GMD by 18.6%; modified biochar treatment increased mean weight diameter (MWD), of which CBS5 significantly improved MWD. The increase was 8.8%.
Preparation of bamboo-like carbon nanotubes by the reaction of cobaltocene and methanol
Authors: Tang Yan , Luo Wei , Liu Gangfeng , Zhu Shanhe 
Published: September 2019

Abstract
Carbon nanotubes have been prepared by the reaction of cobaltocene and methanol at 500 °C. FESEM, TEM and HRTEM observations show the carbon nanotubes with bamboolike structure. These nanotubes are made up of separated hollow compartments and bamboo knots which grow straight along the axis. The bamboo knots are spaced at nearly equal separation of 25 nm for an about 60 nm diameter nanotube. The possible growth mechanism for CNTs is proposed.
Analysis of Time Scale Algorithm in Satellite Autonomous Navigation Mode
Authors: Peng Jian-hang , Wang Xiang-lei , Fang Jian-min , Wang Zhi-ping 
Published: September 2019

Abstract
Using satellite clock to establish and maintain constellation reference time datum is the basis of satellite autonomous navigation, reference time Datum algorithm is the core of realization, the paper first elaborated the commonly used time scale algorithm: ALGOS algorithm and Kalman algorithm, ALGOS is the most commonly used reference time Datum algorithm in the world, The Kalman algorithm can assign weights dynamically, but there are some disadvantages of slow convergence speed. Based on the analysis of the computational complexity, traffic requirements and algorithm convergence of the reference time Datum algorithm in the space satellite environment, the experimental results show that it takes 3 minutes for the ALGOS algorithm to complete 1 reference time datum calculation, the communication volume is about 398kb, and the algorithm converges about 6-9 seconds. The Power acquisition strategy is the most core part of the reference time algorithm, the paper finally gives the experimental analysis to the different power acquisition strategy, the results show that, from the stability point of view, the short stability of the 12-hour power calculation is better than the short stability of the calculation of 5 days of right, but its instability is slightly lower than that of 1 days and 5 days.
Effects of Different Selenium Concentrations on Photosynthetic Physiology of Grape Seedlings
Authors: Chen Hongqiang , Liu Lei , Lin Lijin , Liao Ming’an , Lv Xiulan 
Published: September 2019

Abstract
A hydroponic experiment was conducted to study the effects of different concentrations of selenium (0.00, 0.05, 0.10, 0.25, 0.50, 1.00, 2.00 mg/L) on photosynthetic physiology of grape seedlings. The result showed that the selenium concentration of 0.05 mg/L could significantly improve the chlorophyll a, chlorophyll b, carotenoid and total chlorophyll of grape seedlings, while the chlorophyll content reduced significantly when the concentration was 1.00 mg/L and 2.00 mg/L. Besides, the net photosynthetic rate (Pn), stomatal conductance (Gs), CO2 concentration of intercellular (Ci) and transpiration rate (Tr) of grape seedlings all significantly increased at 0.05 mg/L, while the Pn, Gs, Ci and Tr of grape seedlings reduced significantly when the concentration was 1.00 mg/L and 2.00 mg/L. Therefore, the selenium concentration of 0.05 mg/L concentration was beneficial to photosynthesis.
Dynamic treads of soil chemical properties in citrus planting soil
Authors: Gou Tingyu , Huang Jinqiu , Wang Zhihui , Wang Xun 
Published: September 2019

Abstract
In this experiment, potassium sulfate and monopotassium phosphate were used as the potassium source. Three potassium amount levels (31.96 g, 37.36 g and 48.16 g) were set. The urea and monopotassium phosphate were applied respectively as nitrogen and phosphate sources. The fertilizers were applied from March to July, and soil samples were collected before, during and after fertilization. Three-year-old of hybrid citrus variety ‘Kiyomi’ trees were the plant materials. The results showed that 48.16 g potassium was the optimum amount to improve the soil fertility by enhancing the content of alkaline nitrogen, available potassium and organic matter.
Establishment and Application of Ecological Suitability Evaluation System for Highway Route Selection of Subtropical Mountains
Authors: Wang Zhaoming , Wang Chao , Zhang Dong , Ni Dong , Yuan Minmin 
Published: September 2019

Abstract
Subtropical mountains area Landsat8 satellite Tm images were used as information sources, RS technology was used to extract vegetation coverage, soil erosion and land use type for the evaluation of ecological background condition, and the GIS software was utilized to extract indices of terrain slope and water environment. Based on the indicators above, with GIS analysis techniques, comprehensive evaluation and analysis of the ecological background the subtropical mountains area were conducted, subtropical mountains ecological background conditions could be classified as excellent, good, fair, poor and very poor level. Based on the overall distribution and evaluation route corridors with relatively some feasible routes, and possible route options were compared to ultimately determine the best route with environmental coordination. The results show that the method overcomes the limitations of traditional line selection method which is too dependent on designers experience and subjective judgement.
The Application of Machine Learning Models in Fetal State Auto-Classification Based on Cardiotocograms
Authors: Xue Gongao 
Published: September 2019

Abstract
Cardiotocography (CTG) is widely used by obstetricians in accessing the physical condition of a fetus during pregnancy, for it provides obstetricians with the data regarding the fetal heartbeat and the uterine contractions which helps determine whether the fetus is pathologic or not. Traditionally obstetricians analyze data from CTG artificially, which is both time consuming and lack of reliability. For this reason, developing a fetal state auto-classification model is necessary, for it can not only reduce the time for diagnosing but also save medical resources. With machine learning developing rapidly nowadays, it has been widely applied in areas like biology and medicine to solve various problems. In the condition of fetal state classification, we apply neural network and random forest to analyze the cardiotocographic data from the UCI Repository. Since there is high imbalance in our data, method of weighing has also been applied to optimize our model. Random forest outperforms neural network in terms of accuracy in classifying types of fetuses, which achieves 88.84% and 91.85% accuracy on the training and testing set respectively.
Study on Exogenous Influencing Factors of Green Agricultural Plant Production Technology
Authors: Zhou Ying , Li Qi , Luo Le , Mao An 
Published: September 2019

Abstract
The production efficiency of green agricultural plants is an important criterion for assessing the economic and environmental benefits of agricultural production. The improvement of production efficiency of green agricultural products is an important issue that needs to be studied urgently. Based on the survey data of farm agricultural product cultivation in Shandong province, the non-parametric DEA (data envelopment analysis) method and model were used as the basis for discussion. A green agricultural grain production benefit evaluation standard system was established. The Malmquist coefficient analysis method was used comprehensively, and the DEAP2.1 software was used to study the changes of green crop production efficiency, and the key factors affecting the change of green agricultural production efficiency were analysed through comprehensive index evaluation.
Study on isolation, identification and colonization ability of antagonistic bacterium M39 against pomegranate wilt pathogen
Authors: Yinli Zhou , Jianwei Guo , Wei Yang , Jianbo Bai , qiong Kong , Xianqi Hu 
Published: September 2019

Abstract
In this study, the bacteria with strong antagonistic activity against pomegranate wilt pathogen were isolated and screened from the soil samples collected from Yunnan Jianshui Pomegranate Garden and Mengzi Pomegranate Garden. The indoor inhibition rate of bacterial strain M39 against pomegranate wilt pathogen was 81.17%. The study showed that strain M39 could be stably colonized in the rhizosphere of pomegranate, which had potential biological control value. Based on the cultural characteristics of strain M39, colony morphology observation, physiological and biochemical characteristics analysis (Biolog system), strain M39 was initially identified as Corynebacterium freneyi.
Applying the Ozone Water Spraying for Inactivating E. Coli bioaerosols
Authors: Huang Hsiao-Chien , Huang Hsiao-Li , Hsu Ying-Fang , Yang Shinhao 
Published: September 2019

Abstract
This work applied ozone water spraying to explore the feasibility of inactivating bioaerosol. The inactivating efficiency using ozone water (OW) spraying individually against airborne strains Escherichia coli (E. coli) bioaerosols was evaluated in the testing chamber. The setting air exchanged rate (ACH) in this work were 0.5 and 1.0 h−1. The OW operating concentration of 0.5 and 1.0 ppm were sprayed into the testing chamber for inactivating bioaerosols, respectively. Higher OW spraying concentration showed better inactivating results. The inactivation constant of E.Coli against WO 0.5 and 1.0 ppm spraying under ACH 1.0 h−1 was 0.236 and 0.435 (min−1). Moreover, the bioaerosol removal efficiency would increase with ACH. The inactivation decay coefficient of WO 1.0 ppm spraying against E.Coli was 0.312 and 0.435 (min−1) under ACH 1.0 and 0.5 h−1. The results demonstrated that the WO spraying technology was effective in inactivating bioaerosols.
Multiple regression analysis based on carbon emissions from aviation logistics in Henan Province
Authors: Lyu Sujia , Zhu Wei , Wang Xiaojuan , Xu Ling 
Published: September 2019

Abstract
In this paper, we analyze the relationship of carbon emission from aviation logistics with the added value of Henan Province’s transportation, warehousing, post, and telecommunications industry and the total population of Henan Province from 1997 to 2015. First, we calculate the energy consumption of four types of energy (fuel, gasoline, kerosene and fuel oil) to obtain the carbon emissions of four types of energy. Second, we obtain the estimated energy consumption of aviation logistics in Henan Province through the analysis of the proportion of air cargo. Through analysis, we find that the added value of the transportation, warehousing, post, and telecommunications industry in Henan Province and the total population of Henan Province plays a strong role in promoting the carbon emissions of Henan Province’s aviation logistics. Among them, the influence of the added value of the transportation, warehousing, and postal and telecommunications industries in Henan Province is relatively strong.
Effects of Grafting on Total Phosphorus Content in Post Generations of Cyphomandra betacea Seedlings
Authors: Wei Yuzhi , Yang Liu , Liao Ming’an , Li Hongyan , Lin Lijin 
Published: September 2019

Abstract
The effects of eggplant, Solanum nigrum and tomato as rootstocks on the total phosphorus content in the grafted offspring of Cyphomandra betacea seedlings were studied by pot experiment. The total phosphorus contents in root, stem, leaf and shoot of the offspring of C. betacea seedlings were analyzed. The results showed that the total phosphorus content in the roots and shoots of S. nigrum rootstock was significantly higher than that of ungrafted offspring. There was no significant difference in the total phosphorus content between roots and stems of eggplant and tomato rootstocks compared with ungrafted offspring. The total phosphorus contents in the leaves and shoots were significantly lower than that in ungrafted offspring. Therefore, proper selection of grafted stock can improve the total phosphorus uptake of grafted offspring of C. betacea seedlings.
Research on the social responsibility of China’s inspection body and laboratory
Authors: Zhao Weiwei , Ye Ruyi 
Published: September 2019

Abstract
As a modern high-tech service industry, inspection and testing is a necessary link to ensure the safe operation of industry and the promotion of product quality. It plays a technical support for continuously improving the quality and efficiency of economic development. At present, inspection and testing has become one of the most dynamic and emerging service, but in the process of rapid development, there are also some problems. Some inspection body and laboratory use their power to seek rent or put legal coat on illegal products, resulting in lack of justice, aggravating moral hazard, disrupting the fair order of the whole inspection and testing market, and harming consumers’ rights and interests, such as Sanlu group added melamine to milk power, Volkswagen played tricks on carbon dioxide emissions testing. This essay analyzes the problems existing in the social responsibility of China’s inspection body and laboratory at present, and puts forward some suggestions. On the basis of adopting the international social responsibility standard ISO 26000, the essay puts forward some suggestions on how the inspection body and laboratory fulfill the social responsibility on the responsibility management, pollution prevention, truth and accuracy of data, scientist’s social responsibility and so on.
Effects of Phenanthrene on the key processes and functional genes of denitrification in sediments of Jiaozhou Bay
Authors: Li Kuiran , Bai Xiaoyan , Bai Jie , Sun Pengfei , Tian Yanzhao 
Published: September 2019

Abstract
Polycyclic Aromatic Hydrocarbons (PAHs) will combine with the particulate matter and settle in the sediments, which will influence the denitrification process. The study chooses the Dagu River estuary and the bay area of the northwest of the Jiaozhou Bay as sampling sites, and select Phenanthrene (Phe), the model compound of PAHs as a pollutant. The concentrations of Phe are 0mg/kg, 50mg/kg and 500mg/kg. The impact of Phe on nitrate reduction ability, nitrite reduction ability, related enzyme activity, and relative abundance of functional genes are explored. The results showed that in Jiaozhou Bay and Dagu River estuary Phe had a markedly effect on nitrate reduction, nitrite accumulation, nitrate reductase activity and nitrite reductase activity. The relative abundance of narG and nirS genes were markedly affected by Phe, and the inhibitory effect was enhanced with the increase of concentration. Compared with Jiaozhou Bay, the reduction of nitrate and nitrite in the Dagu River estuary are more sensitive to the pollution of Phe.
Study on risk assessment method of Karst collapse—Taking the Karst collapse in Linyi urban areas as an example
Authors: Chun-mei Yao , Fang Yuan , Fan-qi Meng , Quan-cheng Yang , Ji-cheng Shan 
Published: September 2019

Abstract
Karst collapse is one of main important geological disasters in Linyi city of Shandong Province. In this article, risk assessment of present and forecast situation of karst collapse have been done by the method of fuzzy comprehensive evaluation based on level analysis at the first time. The hazardous assessment, the vulnerability and the expected loss have been assessed, and then the risk assessment map of karst collapse at present is obtained and prevention and control work of karst collapse is expected to develop. It puts up availability exploration on prevention of the same geohazards, and provides a reference pattern.
Investigation on Current Status of Rice Fertilization in the Plain Area of Hanzhong Basin
Authors: Wei Yang 
Published: September 2019

Abstract
Scientific fertilization is the key to obtain a high-yield and good quality rice. In order to understand the present situation of rice fertilizer application in the Plain Area of Hanzhong Basin, a survey had been conducted. The investigation results showed that: in the Plain Area of Hanzhong Basin, N application was more higher, P2O5 application was reasonable and K2O application was a little lower. Fertilization was very unbalanced and the application rates were quite different among farmers. The base to dressing ratio was unreasonable. All the P2O5, K2O and most of N were applied as base fertilizer, and only a few farmers use top dressing N fertilizer. In the frame of fertilizer variety, there is a phenomenon that using more ammonium bicarbonate than formula fertilizer, using more chemical fertilizer than organic fertilizer and using more macro element fertilizer than trace fertilizer.