bluuebunny/crossref_metadata_2025_split huggingface dataset:
Research on solar radiation error of sounding temperature sensor
Authors: Cao Hongxia , Liu Minming , Liu Xinyu , Wang Zengxuan , Tang Yan 
Published: August 2019

AbstractThe error of sounding temperature sensor with bead thermistor induced by solar radiation seriously affects the accuracy of temperature measurement. To solve this problem, this paper presents a novel numerical analysis method based on computational fluid dynamics to correct solar radiation error. The error thermal analysis model of sounding temperature sensor with bead thermistor is established from ground to 32km altitude with different air pressures, and computational fluid dynamics is employed for numerical simulation analysis of solar radiation error. The solar radiation errors are reported in different physical parameters such as the altitude, the direction of solar radiation and the surface coating reflectivity of sensor. The results show that the solar radiation errors present a nonlinear monotone increasing trend with the rise of altitude. Among the errors caused by solar radiation, the error is biggest in the direction perpendicular to the front of the sensor. The simulation results also indicate that the solar radiation error can be significantly reduced by improving the surface coating reflectivity of sensor.
Performance comparison analysis of cold recycled mixture of emulsified asphalt using 100% rap before and after the adding of cement
Authors: Li Yanan , Fan Liang , Wei Hui , Zhang Yuzhen 
Published: August 2019

Abstract
Cement can influence the performance of cold recycled mixture of emulsified asphalt (CRMEA) significantly. A comparative study on the performances of CRMEA before and after the adding of cement was carried out here. In this experiment, four types of emulsified asphalt were prepared by using four heavy-duty 70# asphalt as the raw materials. These emulsified asphalt were blended with 100% reclaimed asphalt pavement (RAP) when no cement was added or 1.5% cement was added. Specimens were made by the improved Marshall test method, and a series of performance characterizations were performed. Results demonstrate that the porosity of the CRMEA is increased after cement is added. The Marshall stability is improved under both 40°C and 60°C, and the Marshall stability under 60°C increases more pronounced compared with that under 40°C. In addition, the splitting strength increases and the bonding performance of CRMEA are enhanced with the addition of cemen.
Synthesis and photo-degradation activity of Zn2GeO4 photocatalyst
Authors: Wan Lijuan 
Published: August 2019

Abstract
Through solution phase route, Zn2GeO4 photocatalyst with the morphology of nanoparticle was prepared. The as-prepared products were characterized by scanning electron microscopy (SEM) and Brunauer–Emmett–Teller (BET) surface area measurements. The results revealed that Zn2GeO4 nanoparticles with higher surface area have higher photocatalytic activity in photo-degradation of MO than Zn2GeO4 prepared through solid-state reaction.
Comprehensive Waterproof Technical Research on Underground Fabricated Metro Station
Authors: Zhang Junjie , Wang Qingbiao , Zhu Qingkai , Xu Shuyi , Shao Tangsha , Kong Qingli 
Published: August 2019

Abstract
With advantage in high-speed construction, prefabricated metro station becomes an important trend in the development of underground space structure. But there are only few researches on water seepage and leakage problems of prefabricated metro station, so it is of great importance to improve the waterproof construction technology. This paper makes theoretical analysis according to concrete structural self-waterproofing and studies the waterproof technology of fabricated metro station in tunnel. With showing the effect of comprehensive waterproof technology by project cases, the corresponding waterproofing measures can effectively solve the waterproofing problem of underground assembly Metro station, and provide technical reference for solving the leakage problem of Metro project.
Application of Improved Particle Swarm Optimization Algorithm in Converter Differential Pressure
Authors: Liu Chuanwu 
Published: August 2019

Abstract
In view of the characteristics of nonlinear, time varying and large disturbance of converter pressure difference control object. The control scheme of the converter differential pressure is analyzed. An improved particle swarm optimization algorithm (ISPO) is used to optimize the PID parameters of the converter differential pressure controller, which enhances the adaptive ability of the PID controller. At the same time, the inertia weight w adopts a nonlinear decreasing strategy and increases the extreme value perturbation operator. The evolutionary stagnation step t is set as the threshold value, and the individual and global extremum of the PSO are randomly perturbed by the extreme value perturbation operator, so that the system is always in an unbalanced state, In this way, the PSO algorithm is prevented from falling into a stagnant state, a new search path and domain are generated, the optimization of the three parameters of the PID is accelerated, and the probability of obtaining the optimal solution is greatly increased, and the optimization of the three parameters of the PID is accelerated. Finally, the simulation analysis and engineering application of matlab show that compared with the conventional PID control, the improved differential pressure of the converter controlled by the improved particle swarm optimization algorithm has the advantages of small overshoot, short adjustment time, good stability and strong antiinterference ability.
Research on the protection of pipelines with multiple column separation and water hammer of cavities collapsing
Authors: Zhao Li , Yang Yusi , Wang Tong , Wu Rongchu , Wang Pengli 
Published: August 2019

Abstract
In long distance water transfer project, pipeline fluctuation, easy to produce multiple column separation phenomenon, then the water hammer of cavities collapsing is greatest harm to the pipe. Summarizing the previous research results, mechanism analysis of water hammer of cavities collapsing and theoretical calculation model, and introduces the main protective equipment and boundary conditions. After long-term practice, constant speed buffer air valve and Two-way Surge Tower effect remarkable on water hammer of cavities collapsing.
Research Progress on Propellant Wastewater Treatment Methods
Authors: Li Ying , Shen Yong , Li Bentao , Huang Hui , Liu Xia , Gong Chen 
Published: August 2019

Abstract
The main treatment techniques of propellant wastewater, including red smoke nitric acid oxidant wastewater, hydrazine fuel wastewater, mixed amine and fuel wastewater, were reviewed. The mechanism, treatment effect, advantages and disadvantages of various methods were summarized and analyzed. The physical method is inefficient, the chemical method is prone to secondary pollution, and the biodegradation method has a long period. From an economic and safety point of view, the method of biodegradation or physico-chemical-biological joint treatment is more effective.
Study on evaluation model of soundscape in urban park based on Radial Basis Function Neural Network: A case study of Shiba Park and Kamogawa Park, Japan
Authors: Hong Xinchen , Jiang Yu , Wu Shuting , Zhang Linying , Lan Siren 
Published: August 2019

Abstract
In order to explore whether artificial neural network can simulate and predict the subjective and objective data of soundscape in urban environment, this study developed the subjective and objective transformation model of soundscape in urban park based on radial basis function neural network. The test was conducted based on the soundscape survey data of Shiba Park and Kamogawa Park in Japan. The results showed that the subjective and objective evaluation model of soundscape constructed by radial basis function neural network could predict more accurate subjective evaluation value, the average prediction accuracy rate was 91.23%. In addition, the soundscape in the higher loudness, loudness level and sound pressure level, and the lower sharpness got a higher accuracy, which is beneficial to simulating the tourists’ psychological state of the soundscape. The study proved that the artificial neural network model can provide an effective method for further and more comprehensive acoustical environment research in the future.
Research on Sustainable Development of Event Tourism under Environment-friendly growing path
Authors: Ding Nan , Mi Xue , Zhao Lei 
Published: August 2019

Abstract
This paper analysed environment problems of event tourism what affects the surroundings directly and then studied the corresponding measures by adopting theories and methods of environment sciences. Sustainable development of event tourism was studied by analyzing the system of event tourism. The results showed that there are three different levels of event tourism in Chinese scenic spot with nine major ecological negative impact areas including solid pollutants, light pollution, etc. The disposal of consumables and tourists’ garbage were identified as most serious impact to environment in the whole event tourism in China. Some advices and measures including enhancing the development of sustainable module building materials, optimizing waste treatment system on-site to improve the growing path of event tourism industry and solve the ecological problems in different stages of it.
Study on evaluation of lightscape under forests in urban parks
Authors: Hong Xinchen , Nie Xiaojia , Dai Zhongwei , Lan Siren 
Published: August 2019

Abstract
In order to explore the evaluation system of lights cape under forest in the urban park, an evaluation system of lights cape under forest in the urban park was constructed, which was composed of physical factors, psychological factors and spatial factors and the corresponding 12 indexes affecting the lights cape based on Grey Statistical Theory and Analytic Hierarchy Process. The results show that: 1) Psychological and physical factors are the dominant influencing indexes in the evaluation system, and the weight accounting of these factors is more than 70%. 2) The total weight of illumination uniformity is higher than other evaluation indexes. 3)The important indicators and sub-important indicators that affect the evaluation of lights cape under forest in the urban park are as follows: illumination Uniformity, satisfaction of lights cape, audio-visual coordination, sky View Factor, daylight factor under forests, perception of privacy, perception of security and clear bole height, etc. The evaluation system is expected to provide theoretical basis and effective methods for the future study in urban light environment.
Research on noise characteristics and control technology of heavy haul railway in China
Authors: Shao Lin , Li Yanliang , Chen Yingqing 
Published: August 2019

Abstract
This paper briefly describes the development process and the characteristics of heavy haul railway in China, summarizes the current situation of noise impact of heavy haul railway at home and abroad, and researches on low-noise control technologies of heavy haul trains. The noise characteristics of China’s heavy haul railways were studied through field tests. The results showed that when the passing velocity of heavy haul trains increased from 60km/h to 100km/h, the regression coefficient K of radiated noise and velocity was 20-25. Through the comparative analysis of the noise between the heavy haul train and the freight train, it is proved that the low-noise control technologies have significant noise reduction effect.
Wind Environment Optimization for Sustainable Development: The China Experience in Urban Air Path Planning
Authors: Wang Peng , Jiang Haocheng , Lei Cheng 
Published: August 2019

Abstract
Urban air path planning is an exploration of urban sustainable development by urban planners. With the continuous increase of urban scale and urban construction density, cities in China begin to face the ventilation problem faced by developed countries. The article reviews the process of urban air path research in China and summarizes the current situation of urban air path planning practice in China, in order to provide a reference for other developing countries. Based on the reflection on the development of urban air path, this paper puts forward four suggestions for urban air path construction in developing countries, including formulating formal technical guidelines, integrating with national urban planning system, strengthening the support of wind environment research, and constructing evaluation and feedback mechanism.
Study on Utilization and Pollution of Water Resources in Guanqiao Village of Guangxi Province
Authors: Qin Ruqiong 
Published: August 2019

Abstract
This paper summarizes the present situation of drinking water (groundwater) and agricultural irrigation water in Guanqiao village, existing problems and solutions. And study on utilization and pollution of water resources in Guanqiao village of Guangxi Province. Highlight the seriousness of water shortage and pollution.
Research on Emission Characteristics of Radioactive Resin on Floating Nuclear Power Plant
Authors: Yue Fangyuan , Lei Bin , Sun Haijun , Li Junwen , Gao Shan , Ye XiaoLi , Du Meng 
Published: August 2019

Abstract
The development of floating reactors needs to take into account the marine ecological environment. The recycling of waste in floating nuclear power plant is different from the onshore nuclear power because of its limited space and resources. The purifying resin of primary circuit has a high radioactivity and accounts for a large proportion of floating solid waste, and the production of other radioactive waste generated during resin unloading is worthy of attention. In order to minimize the waste production during emission of radioactive resin, this paper uses the fluid dynamics theory of fluidized bed to calculate and analyze the waste production and emission effect in different media for transportation, and propose a reasonable resin emission program, which can provides a powerful design input for the waste treatment.
Research on Pavement Temperature Prediction Based on Neural Network
Authors: Liu Shouwen , Han Shigang , Chen Huamin , Li Zhen 
Published: August 2019

Abstract
Through data of pavement temperature, air temperature, humidity, wind speed and rainfall in the Dianjiang-Wanzhou section of G42 Shanghai-Chengdu Expressway from 2014 to 2016, it is found from the change law of the pavement temperature of this expressway section that the annual average values of pavement temperature of most monitoring stations gradually lower, but extent is not quite big; the lowest pavement temperature is between -3.2°C and 1.4°C, the highest pavement temperature is 57.9°C to 76.5°C; no matter which season, the pavement temperature and air temperature are characterized by rapid temperature rise after sunrise and significant temperature drop after sunset; the correlation between pavement temperature and air temperature is the best, the correlation coefficient reaches 0.986, and then its correlation with humidity, wind speed and rainfall decrease progressively, and they are -0.467, 0.189, 0.034, respectively. It can be found from the prediction results of pavement temperature in Chongqing Dianjiang-Wanzhou Expressway section based on neural network that the summer error is the largest, the spring is second, the autumn error is less, and the winter error is the smallest; from the angle of fitting degree of time series, the autumn fitting is optimal, the spring and winter is second, the summer effect is not good enough; the correlation coefficient between the model prediction sequence and the live sequence of the four seasons is greater than 0.89, and the overall effect is ideal. Through the research on pavement temperature, the cooperation between meteorological department and transportation departments can be strengthened, accident losses can be reduced, and the maximum benefit of road transportation can be brought into playr.
Research on how to improve environmental protection during fire emergency rescue
Authors: Liu Jiangping 
Published: August 2019

Abstract
With the rapid development of the urban economy, the flow of people in the city has gradually become active, and the amount of urban fires has gradually increased. The difficulty in preventing and extinguishing fires is gradually increasing. How to identify, judge, inspect, analyze and evaluate the factors that cause fires, carry out reasonable operations on the fires after the fires, optimize the firefighting capacity of the fire department, and effectively control Urban fires and the reduction of environmental pollution problems in fire rescue are the most important issues to be solved in the current situation. Briefly introduced the impact of fire accidents on the environment, systematically analyzed the sources of pollution and their hazards in fire accidents, and proposed the pollution control methods in fire accidents in combination with the existing firefighting methods, and made suggestions for improving the environmental protection of fire emergency rescue.
Effect of Electrode Materials on electro kinetic remediation of Uranium Contaminated Soil
Authors: Xiao Jiang , Zhou Shukui 
Published: August 2019

Abstract
In this study, three different electrode materials (graphite, stainless steel, and titanium rods) were used to explore the electro kinetic (EK) remediation of soil contaminated with uranium (U). All EK experiments were carried out in a soil cell reactor with a moisture content of 25.1% and a total uranium mixture of 90.6 mg/kg at a constant voltage gradient (1V/cm) for 5 days. The experimental results show that the EK repair process with graphite rod as the electrode material has the highest current peak, and the overall current level is higher than the other two electrode materials. Compared with stainless steel and titanium rods, the removal efficiency of using graphite as the electrode material U in contaminated soil reached 34.11%. However, the removal rates using stainless steel and titanium rods were lower, 15.79% and 18.77%, respectively. In the EK experiment, the main removal is from the exchangeable part of U to the carbon-bound U composition, while the remaining forms of uranium are difficult to remove under this condition, so in order to be more efficient, the uranium in the soil is removed with maximum reduction. It is necessary to use it in conjunction with other enhancement technologies.
Simulation Study on Exhaust Effect of Common Exhaust Equipment in Traditional Electrical Manufacturing Enterprises
Authors: Chen Tao , Gao Yang , Sun Chengxun , Liu Sen , Li Hongyan 
Published: August 2019

Abstract
Based on fully understanding of the setting and operation of local exhaust facilities in traditional electrical manufacturing industry, the software FLUENT is applied to simulate the airflow field of universal arm exhaust hood in the process of removing welding dust. And the exhaust effect of typical welding dust universal arm exhaust hood and its influencing factors were analyzed. The results show that the exhaust effect of welding fume is mainly affected by the exhaust wind speed, the size of the hood, the angle between the hood and airflow, the distance from the pollutant source to the center of the hood, etc. When practical operation is feasible, the best combination of exhaust effect and economy is achieved when the vertical upward suction is adopted and the cover opening is 20-25cm away from the solder joint and the exhaust velocity is controlled at 0.4-0.6m/s.
Study on the repair of heavy metal contaminated soil
Authors: Luo Yuhu 
Published: August 2019

Abstract
Soil heavy metal pollution was serious in our country and the soil quality was not optimistic. The heavy metal pollution in the soil was concealment, accumulation, non-degradability, uneven distribution and regionality, which was difficult to treatment. Based on the sources of heavy metals in the soil, the characteristics of heavy metal pollution and potential hazards, this paper briefly analyzed the physical methods to repair heavy metal pollution in soil. Then it summarized the related researches on the direction of soil heavy metal pollution remediation by chemical method, biological method and joint repair method in recent years, and on this basis, the future research direction of soil heavy metal repair was prospected.
Study on the Suitability Technology System of Residential Green Building in Hot Summer and Warm Winter Zone
Authors: He Fang , Fan Fenghua , Zhang Yanfang , Teng Yueya , Tian Lu 
Published: August 2019

Abstract
This paper introduces the key technologies of green two-star residential buildings in Hot Summer and Warm Winter Zone, as well as the green means adopted in the green construction stage, and focuses on the economic and social benefits brought by green building technology in the operation stage. The research content has certain reference significance for the technical selection and implementation of green building in this climate area.
Progress in Landscape Ecology research in China
Authors: Li Yanan , He Jing , Chang Min 
Published: August 2019

Abstract
Landscape ecology is a new interdisciplinary subject that has developed rapidly in recent years and is the focus of current research on resources, environment and ecology. Landscape ecology relies on the theoretical framework of ecology, absorbs the essence of modern geography and systems science, and studies the type composition, structure (spatial pattern), function (ecological process) and evolution (spatial dynamics) of landscape units and their ecology. A comprehensive discipline that interacts with the learning process. This paper briefly introduces the development history of landscape ecology in China, summarizes the progress of landscape ecology research, briefly analyses the problems existing in landscape ecology research in China, and forecasts the research direction of landscape ecology.
Research of Urban Suitable Ecological Land Based on the Minimum Cumulative Resistance Model: A Case Study from Hanoi, Vietnam
Authors: Tran Ducthien , Xu Dawei , Alwah Abdulfattah.A.Q. , Liu Bingxi 
Published: August 2019

Abstract
Rapid urbanization process is accelerating the dramatic transformation of urban land use, creating strong economic, social and environmental impacts in Hanoi (Vietnam). Improving the quality and optimizing the model of using ecological land in urban areas is very important to solving environmental issues and sustainable urban development. Using the Hanoi capital of Vietnam, an important and typical city in the Red River Delta, as in the case of the study, we applied the Minimum cumulative resistance model (MCRM) to calculate ecological land and constructed land meet the needs of socio-economic development and ecological protection. Results showed that the suitable ecological land area is about 2.090,298km2 (ecological land area 1.112,216km2, ecotones land area 978,082km2), which is 62% of the total urban area of Hanoi is mainly distributed in Bavi, Socson, Unghoa, Myduc, Chuongmy districts and Sontay town; and constructed land area is about 1.275,736km2, which accounts for 38% mainly distributed in the city center and urban areas. Study the ecological land space and construction land of Hanoi area and compare with the current land use status through simulation of MCRM model, we propose three types of land use. For urban ecological land, there must be measures to manage and protect the ecological environment and prohibit construction activities in the area. For ecotones land between urban construction land and ecological land, it is necessary to control and limit the construction to improve the quality of the ecological environment. For construction land, there must be a policy to promote construction along with reasonable and efficient land use development to improve urban living environment.