bluuebunny/crossref_metadata_2025_split huggingface dataset:
Modeling and process design of municipal solid waste pyrolysis and gasification with a fixed-bed chamber
Authors: Erping Li , Qing Hu , Haoyun Chen , Jinling Cai , Yaqun Qiu , Zhiyuan Yu 
Published: November 2019

Abstract
To design the process of municipal solid waste (MSW) pyrolysis and gasification in a fixed-bed more veritably and effectively, the modeling of this process was proposed based on Gibbs energy minimization by using the Aspen plus software. The proposed model was used to predict and analyze the influences of operating parameters including gasification temperature, air-fuel ratio and steam/MSW ratio on the composition, lower heating value (LHV), carbon conversion efficiency (CCE), heat conversion efficiency (HCE)and flammable gas contents (FGC) of syngas. The results indicate that there is a good agreement between the experimental data and the simulated data obtained using this model. The predicted appropriate gasification temperature was around 900°C while the suitable air-fuel ratio was approximately 0.4, and the beast steam/MSW ratio was around 0.4. A novel configuration of atmospheric fixed-bed chamber is designed for the municipal solid waste pyrolysis and gasification process based on the experimental and simulated results. The designed configuration was feasible with achieved heat balance of the system.
Planning Method for Power-Gas-Heat-Steam Integrated Energy System in Industrial Park Considering Annual Comprehensive Cost
Authors: PuZhao  , QunLin  , Xie Haokai , Ji Xudong , Pan Lezhen , Li Daren , Zhu Haili , Liu Wenlin 
Published: November 2019

Abstract
The current energy system in industrial parks have the problem of poor investment efficiency and low energy utilization rate. A planning method for the park’s power-gas-heat-steam integrated energy system(IES) considering annual comprehensive cost is proposed. Firstly, based on the uncertainty of renewable energy and the characteristics of energy supply and consumption in the park, the structure of the integrated energy system is established. Papersets the minimum annual comprehensive cost including investment, operation, maintenance cost and environmental protection cost as the optimization goal. The mixed integer linear programming(MILP) algorithm is used to optimize the equipment selection, capacity planning and equipment operation mode at the same time. Through the example simulation, the planning scheme under different scenarios is given, and the effectiveness of the method is verified.
Research on the Collaborative Innovation of Military-Civilian Integration Based on the Perspective of Industrial Agglomeration
Authors: Li Yun , Wang Wengang , Sun Junna 
Published: November 2019

Abstract
Based on the classification and analysis of the main subjects and function orientation of collaborative innovation of military-civilian integration industry, this paper demonstrates how to enhance the collaborative innovation capability in the military-civilian integration industry from the perspective of industrial agglomeration, constructs the theoretical framework of collaborative innovation system, and finally proposes suggestions on improving the collaborative innovation capability of the industry.
Change of Intergranular Corrosion Sensitivity of HR3C Steel Under the Condition of 700°C Aging
Authors: Li Xinmei , Zhang Zhongwen , Li Xiulian , Zou Yong , Du Baoshuai 
Published: November 2019

Abstract
This paper studies the change of intergranular corrosion sensitivity of HR3C steel under the condition of 700°C aging by using the scanning electron microscope, energy disperse spectroscopy (EDS), and double-loop Electrochemical potentiokinetic reactivation (EPR) method. The results show that the main reason for the intergranular corrosion of HR3C steel after aging treatment is the precipitation of M23C6 along the grain boundary. The morphology and size of M23C6 also matters in this regard. At the same time, M23C6 precipitation also causes corrosion of Cr around it. M23C6 precipitates at the fastest speed at the beginning of aging, which leads to the rapid increase of intergranular corrosion sensitivity. As aging continues, M23C6 precipitation becomes gradually stable. After the precipitation of large-sized isolated granules, the intergranular corrosion sensitivity of HR3C steel decreases rapidly and maintains at a low level.
Numerical simulation and prediction of groundwater pollution caused by the leakage of sulphuric acid storage tank with GMS model
Authors: Liang Yimin , Lan Junkang 
Published: November 2019

Abstract
Because of the concentration of SO4
2- in the sulfuric acid tank is extremely high, the leakage of sulphuric acid storage tank is great harm to groundwater environment. Once the accident of leakage take place, the drinking water sources of residents around the leak point will be greatly polluted. In order to find out the severity of groundwater pollution and the migration of pollutants after leakage, a GMS software was used to simulate and predict. During simulation, the scope of the simulation area and its hydrogeological conditions were determined by hydrogeological surveying, mapping and drilling. The parameters used in the simulation are obtained from field tests. The simulation results show that the concentration of SO4
2-at the central pollution halo is as high as 788050 mg/L after 27.39 years of the leakage accident happened. Due to the low permeability of the formations, the decontamination effect of the polluted halo mainly depends on the slow dilution of aquifer. The process of the completely purifying pollutants in groundwater will takes a long time.
Environmental Cost Research Hotspots and Frontier Analysis —Visual Analysis Based on CiteSpaceV
Authors: Han Dan , Chen Xuemei 
Published: November 2019

Abstract
Using the core collection library of web of science as the data source, we obtained 996 documents related to environmental cost in the core collection of web of science from 1986 to 2019, and then used the information visualization software CitespaceV to draw scientific knowledge map. We found that: the research group is characterized by large dispersion and small concentration, and no academic community has been formed among core scholars; research institutes are concentrated in universities; the research has gone through two processes of germination and development, mainly focusing on the mechanism and accounting method of environmental cost impact and environmental cost management;new energy, new materials, resource consumption and multi-objective optimization have become popular word frequency in recent years. Under the guidance of the new economic development model of advocating green environmental protection and sustainable development, accounting is the constant theme of environmental cost research, and the development and utilization of clean production and renewable energy is the leading direction of environmental cost research in the future.
The research on the influence of carbon content in coal slag on heat loss from solid incomplete combustion
Authors: Cai Qin 
Published: November 2019

Abstract
The influence of carbon content in coal slag on heat loss from solid incomplete combustion was analyzed by thermal balance calculation of the boiler. The results showed that the heat loss from solid incomplete combustion increased with the increase of carbon content in slag when other operating parameters were constant. The quality of coal, especially the calorific value had an important influence on the carbon content of the slag. The heat loss from solid incomplete combustion decreased with the increase of calorific value. As a result, in order to reduce the heat loss from solid incomplete combustion, the type of coal used should be consistent with the type of coal designed as much as possible.
Analysis of the Rise and Characteristics of Environmental Diplomacy in Australia
Authors: Zeyuan Du 
Published: November 2019

Abstract
In order to explore the rise and characteristics of environmental diplomacy in Australia, the rise and characteristics of environmental diplomacy in Australia through literature review and analysis methods was studied in this research. The results show that Australia’s environmental diplomacy is influenced by international environmental system, international public opinion, national interest and other factors, and its characteristics include diversified participation, strategic promotion of the status of domestic environmental diplomacy, and environmental diplomacy with national interests at the top. To sum up, Australia’s environmental diplomacy have been affected by both international environmental politics and domestic national interest protectionism since ancient times. Therefore, the analysis of the rise of environmental diplomacy in Australian and its characteristics has a positive effect on subsequent research.
Research on Identification Method of the Inefficient and Ineffective Circulation Well Layer in Tracer Flow Simulation
Authors: Jia Wang 
Published: November 2019

Abstract
The development of old Daqing Oilfield has entered the late stage of extra-high water cut, and the situation of inefficient and ineffective circulation is serious. Based only on the static and dynamic geological parameters, it is far from satisfying the requirement of analysis and judgement in the case of that the current well pattern, well spacing and dynamic state have all changed greatly, so the difficulty of development and adjustment is increasing. In this paper, tracer numerical simulation method is used to quantitatively study the directional injection-production rate of injection-production well layers, and the chart of the relationship between liquid production and water cut under different oil prices is established. The benefit types of production layers in production wells are classified and quantitatively evaluated, and then the inefficient and ineffective layers of production wells and their main inflow direction are accurately identified, which provides a basis for water control and efficiency improvement of inefficient and ineffective circulation well layers.
Problems and Countermeasures in the Construction of Characteristic Towns—Take Shanghai as an Example
Authors: Mo Hu , Lin LI , Yong Meng 
Published: November 2019

Abstract
As an important breakthrough to speed up the new-type urbanization, the characteristic towns are conducive to solving the problem of developing kinetic energy transformation in the current supply-side structural reform in China. Shanghai, as a global city, will create several distinctive towns with characteristics that highlighting local culture, which will contribute to the further improvement of regional development and the overall improvement of urban competitiveness. Based on the overall development in Shanghai, this paper fully evaluates the existing resource endowments and development status of Shanghai’s existing characteristic towns through empirical research. Based on this, it sorts out the major bottlenecks and the goals and directions of the construction of characteristic towns from the perspective of “people-oriented”, coordinating the residents’ life, creative talents’ work as well as tourists’ travel. Finally, it gives specific direction and policy initiatives from the layout, characteristics, resource, industry, policy and other aspects to promote the construction of characteristic towns.
Preparation of natural polysaccharide nanosphere carrier and its application in antitumor
Authors: Liu Xianwu , Yang Ziming , Li Puwang , He Zuyu , Zhou Chuang , Chen Yu , Feng Changgen , Huang Guocong 
Published: November 2019

Abstract
With the rapid development of nanotechnology, more and more polymer materials have been excavated for the preparation of nano drug microspheres for the treatment of malignant tumors. Due to its wide range of sources, low price, good biocompatibility and degradability, natural polysaccharides are widely used in the research of nano-microsphere carriers to achieve sustained release control of embedded drugs. In this paper, we mainly introduce the preparation methods of chitosan, sodium alginate and chitosan-sodium alginate nanospheres and their application research in anti-tumor, and look forward to their future development.
A Meta-Analysis of the Treatment of Diabetic Nephropathy using Astragalus Injection combined with Captopril
Authors: Xu Yan 
Published: November 2019

Abstract
To observe the effectiveness and safety of using astragalus injection combined with captopril for diabetic nephropathy. The method is using computer database searches and manual retrieval of relevant journals. Astragalus injection combined with captopril was the test drug group. The data was analyzed using Review Manager 5.1 according to the evaluation criteria of RCT recommended by Cochrane 4.2.2. 11RCT and total 641 cases of early and clinical diabetic nephropathy were included. Astragalus injection combined with captopril was more excellent than the control group in the lower of 24hUAER [MD=-21.09, (-37.21,-4.96), P<0.01], 24h urinary protein [MD =- 0.38, (- 47, -0.28), P <0.01], the efficient [RR=1.29, (1.06,1.57), P=0.01], BUN [MD=-0.36, (-0.62,-0.11), P=0.004], SCr [MD=-4.13, (-7.94,-0.33), P=0.03], FPG [MD=-0.96, (-1.67,-0.24), P=0.009], TC [MD=-1.42, (-1.66,-1.18), P<0.01], and TG [MD=-0.45, (-0.59,-0.32), P<0.01]. There was no significance in 2h PG [MD=-0.07, (-0.65,0.51), P=0.81], and blood pressure (2 =0.15, P=0.69).. Astragalus injection combined with captopril was effect and safe in the lower of 24hUAER and the efficient for the patients with diabetic nephropathy. It also needs more randomized controlled trials for high-quality evaluation.
Anti-inflammatory effect and chemical constituents of Microcos paniculata total flavone glycosides fraction
Authors: Yuan Min , Zhang Chumei , He Zhuoru , Liu Changle , Li Kunping 
Published: November 2019

Abstract

Microcos paniculata is an edible and medicinal plant in Lingnan, China. The present study investigated the anti-inflammatory effect and chemical constituents of its’ total flavone glycosides (MpTFG) fraction. MpTFG (10, 15, 20 μg/mL) was applied to 1 μg/mL LPS-induced RAW 264.7 macrophages in vitro; and MpTFG (10, 20, 40 mg/kg body weight) was employed to xylene-induced ear edema test. As a result, 20 μg/mL MpTFG decreased the levels of pro-inflammatory cytokines IL-6, IL-1β and TNF-α in LPS-stimulated RAW 264.7 cells supernatant significantly, and 40 mg/kg MpTFG could effectively ameliorate xylene-induced mice ear swelling. The results showed that MpTFG had potential anti-inflammatory effect. Meanwhile, ten compounds were purified by making use of macro-porous resin, sephadex LH-20 gel column chromatography and semi-preparation HPLC successively. They were characterized to be vicenin-2 (i), isoschaftoside (ii), schaftoside (iii), vitexin (iv), vicenin-1 (v), isovitexin (vi), isoviolanthin (vii), nicotiflorin (viii), astragalin (ix), narcissoside (x) by 1H-NMR, 13C-NMR and HRMS spectral analysis.
A Fetal Heart Rate Signal Source Recognition Model Based on Fast Fourier Transform and Ensemble Learning
Authors: Huang Meijia , Wang Huijin , Zhang Lu 
Published: November 2019

Abstract
Fetal heart rate monitoring is a necessary routine examination item in obstetric clinic, which has important significance in the health examination of the perinatal fetus. Accurate extraction of fetal heart rate is a key technology in electronic fetal monitoring technology. There are still some difficulties and challenges in extracting the fetal heart rate from the ultrasound Doppler signals. The ultrasound Doppler fetal monitoring probe is difficult to maintain in the correct position, therefore, the Doppler ultrasound signals obtained may be the abdominal aorta signals which will cause fetal heart rate extraction error. In this paper, a signal source recognition model based on fast Fourier transform(FFT) and ensemble learning for ultrasound Doppler signals source recognition is proposed. The spectral features of the signals are extracted by FFT, and the spectral features are used as the input of ensemble learning model to decide whether the mother’s abdominal aorta signals are detected. The experimental results show that the proposed model can achieve the best recognition effect with the rule that the signals are regarded as from abdominal aorta if more than 93% of the signals get the negative output by the model within the time window of more than 13 seconds.
Pore Structure Characteristics Analysis of Tight Reservoir1
Authors: Fuqaun Song , Haoze Gao , Tao Dai 
Published: November 2019

Abstract
In the development of oil and gas reservoir, tight oil and gas reservoir refers to the oil and gas reservoir with liquid measured permeability of 0.1 milli- Darcy, and the pore structure characteristics of tight oil reservoir is an important factor affecting its development effect. In this paper, constant-rate mercury penetration, nuclear magnetic resonance and scanning electron microscopy are used to detect the rock samples of a tight oil reservoir in Daqing, and analyse the distribution of pores and throats in the reservoir. And it turns out: Tight sandstone pore throats in this block are distributed at 0.01μm1μm. The average pore throat radius was 0.43μm. The pore radius ranged from 80μm to 180μm, with an average radius of 122.7μm and the average pore radius was 124μm. The analysis of experimental data shows that the permeability of tight sandstone is mainly determined by throat radius and has nothing to do with pore size. The results of the three test methods are basically consistent and can be verified with each other.
Determination of the shear strength of interlayer materials in a clastic rock Aera
Authors: Jianjun Gan 
Published: November 2019

Abstract
This study focus on the influence of the shear strength in unsaturated soil under different matric suction. 12 groups of GDS tests under different conditions were executed to analysis the relationship between net confining pressure and deviatoric stress. Then, used the unsaturated soil strength theory to calculated the shear strength of the weak interlayer. The results show that under the same confining pressure and unsaturated conditions, the deviatoric stress increase as the matric suction increases. The total cohesive force and the matrix suction of a linear relationship during the test process, the growth of the slope angle for the matrix suction is 6.6°. Finally, a modified formula for shear strength of the soft sandwich silty clay in this landslide was proposed.
Flammability properties of intumescent flame retardant polylactic acid/layered silicate nanocomposites
Authors: Zhan Jing , Liu Xueli , Yang Tan , Cao Chunhua 
Published: November 2019

Abstract
Novel intumescent flame retardant polylactic acid (PLA) composites containing different melamine polyphosphate (MPP)/pentaerythritol (PER) and organicmodified montmorillonite (OMT) formulations have been prepared and studied. The synthetic Fe-montmorillonite (Fe-MMT) and natural Na-montmorillonite (Na-MMT) are chosen and modified by hexadecyltrimethylammonium bromide (CTAB). The flammability properties of PLA composites are investigated by UL-94 tests, limited oxygen index (LOI) and microscale combustion calorimetry (MCC) experiments. It’s found that the incorporation of organically modified layered silicate can further improve the flame retardancy of PLA composites, and Fe-OMT is more effective than Na-OMT. In addition, the effect of OMT on thermal degradation stability of PLA composites is analyzed using thermogravimetric analysis (TGA). The results show the addition of Fe-OMT decreases the onset decomposition temperature, but remarkably increases the char residue.
The Only Source of Cu Content from River Flow in Jiaozhou Bay
Authors: Yang Dongfang , Tao Wenliang , Yang Danfeng , Zhu Sixi , Wang Ming 
Published: November 2019

Abstract
In August and October, 1991, the variation of Cu content in Jiaozhou Bay was 0.13-0.67μg/L, satisfying the Case I Sea Water Quality Standard. It showed that the water was not polluted by Cu content. Cu content was only transported by the river flow, specifically, 0.64μg/L from Haibo River, 0.59μg/L from Licun River and 0.67μg/L from Loushan River. The three rivers were not polluted by Cu content. The Cu content emitted by human was in the order of Loushan River, Haibo River and Licun River from high to low. However, the Cu contents in the three rivers were far less than 5.00μg/L, showing that the land was not polluted by Cu. Transported by different river flows, the Cu contents reaching the ocean were basically consistent, with a variation of 0.08μg/L. Further, the modelling diagram was established to display the transport path of Cu content to land, atmosphere and ocean in a quantitative way.
Study on the Size Effect of high-water materials
Authors: Lu Yonghu , Liu Changwu , Zhou Xianliang , Zhang Lianwei 
Published: November 2019

Abstract
The use of high-water materials in mining and filling is conducive to stope stress control and goaf stability. Since the filling body is huge, the size effect tends to affect the mechanical and deformation characteristics to some extent. Therefore, study in this respect is beneficial to engineering design and construction. To study the size effect of the high-water materials with different water-cement ratios, this paper first carries out experimental analysis of the size effect of high-water materials with different aspect ratios and explores the influence of aspect ratio changes on their mechanical characteristics; this paper then studies the size effect of high-water materials while taking the aspect ratio as 2:1. The test results are as follows: (1) the strength of high-water materials decreases first and then decreases with the increase of aspect ratio; the strength reaches the minimum with a low degree of discretization when the ratio is 2. (2) With the increase of aspect ratio, the plasticity of high-water materials decreases, while its modulus increases continuously; the strain corresponding to the peak strength decreases, and the residual peak ratio decreases continuously, so the specimen is more prone to instability. (3) Splitting failure is the failure mode of high-water materials, which does not change with size; based on Von. Mises theorem, the consistency of theoretical and experimental results is proved. (4) The strength of the high-water material decreases with the increase of size; the size effect becomes more significant as the water-cement ratio increases.
Study on a New Type of Air-exchange Device for Refrigerated Container
Authors: Kaitai Hua 
Published: November 2019

Abstract
In order to optimize the inconvenience of the switch operation of the existing air-exchange device and the loosening problem in the complex environment during transportation, a new type of air-exchange device for container is designed in this paper. The device adopts rotating opening, embedded sealing structure of sealing plug and combined with spring function, which effectively realizes the stability and reliability of the opening and closing of the air-exchange device. The structure is simple and the operation is also convenient. Therefore, the new air-exchange device has a wide application prospect in refrigerated containers.
Design and Analysis of Double-Hole Box Culvert Structure Based on Beam Element Modeling
Authors: Shi Jing-xian 
Published: November 2019

Abstract
In this paper, a double-hole box culvert on a municipal road in Yunnan, China, is taken as an example. Firstly, the sizes of each position are drawn up, and the bridge and culvert structure analysis software Midas Civil is used to simulate the double-hole box culvert by using beam element. The results show that the roof and bottom of box culvert can meet the requirements of normal section bearing capacity of Flexural members, crack width in service stage and various requirements in construction stage; the web and side plates of box culvert can meet the requirements of strength and stiffness of bearing capacity of axially eccentric compressive members.