bluuebunny/crossref_metadata_2025_split huggingface dataset:
Research on the construction technology of marine environmental safety knowledge Base
Authors: Wu Le , Ruan Yangzhi , Li Jian , Huang Quanyi , Wei Zhen 
Published: August 2020

Abstract
China is a large marine country with a large number of populations living along the coastal area. More attention has been paid to marine disasters along with the rapid development of marine economy. On the basis of the demand for the risk prevention and control of marine security events, it is imperative to study the technology of building risk prevention and control knowledge base of marine security, sort the marine knowledge base system according to the relevant knowledge of marine environmental security events, such as storm surge, enteromorpha, oil spill, etc., and build comprehensive risk prevention and control knowledge base of marine environmental security and the specific element set based on the knowledge map, multi-type knowledge coupling, risk prevention and control digitalization, etc. so as to form an entity for risk prevention and control knowledge base.
Empirical Analysis of Environmental Constraints and Influencing Factors in Beijing-Tianjin-Hebei Region
Authors: Hong Zhao , Yu Liu , Shanling Jiang , Yujing Wen , Shang Gao 
Published: August 2020

Abstract
This paper focuses on carbon emissions problem and adopts the “bottom-up” method proposed by IPCC to calculate the energy consumption carbon emission of leading industries in the Beijing-Tianjin-Hebei region. And constructed the Tapio decoupling index model to analyze the “decoupling relationship” between the development of leading industries and energy consumption and carbon emissions in various regions, so as to quantify the environmental constraint levels of different industrial development. Finally, this paper uses LMDI model to decompose the carbon emission factors, and explores the environmental impact of industrial leading industries in Beijing-Tianjin-Hebei region from the four dimensions of carbon emission intensity, energy intensity, economic development and population size, in order to effectively promote the optimization of industrial structure in Beijing-Tianjin-Hebei region and to achieve pareto optimization.
Analysis of the Importance of Fresh Air System to Indoor Environment of Green Building and Healthy Building
Authors: Xiaoyi Chen , Runping Niu , Hua Liu , Kai Yu 
Published: August 2020

Abstract
As an important place for people to live, study and work, the building indoor environment has gradually become the focus of people’s attention. The fresh air system plays an important role in improving indoor environmental health problems. This paper discusses the control requirements of green buildings and healthy buildings on the indoor environment. Through the real-time detection of the indoor environment temperature, relative humidity, CO2 concentration, PM2.5 concentration, air flow speed and fresh air volume of the building, the operation process of the fresh air system is analyzed. The impact on the indoor environment, expounds the importance of the fresh air system to the indoor environment, and provides a reference for the improvement of the indoor environment of green buildings and healthy buildings.
Analysis of stability factors and interaction rules of soil slope under heavy rainfall
Authors: Yong Zhao , Liu-bing Zhu , Wen-yi Hu , Ling-qiang Chen , yongzhe Zuo , chaoqun Wei 
Published: August 2020

Abstract
Short-term heavy rainfall is an important inducement factor of soil landslide disaster in southern China. In order to study the influence degree of different factors on slope stability under heavy rainfall conditions, combining numerical simulation and mathematical statistics method, taking a certain slope in Guangzhou as the engineering background, the slope stability coefficient was calculated based on the coupling of Seep/W and Slope/W modules in Geo-studio software. Then the orthogonal experiment designed by Minitab was used to select rainfall intensity, rainfall time, cohesion, internal friction angle and severity for univariate range and variance analysis. On this basis, the rainfall intensity, rainfall time and internal friction angle were selected for the multi-factor interactive analysis. The results show that the five factors have significant influence on the slope stability. The order of sensitivity is: angle of internal friction of residual soil > rainfall intensity > rainfall time > cohesion > heavy. The interaction between the Angle of internal friction and rainfall has a high influence on the slope stability. The effect of interaction on slope stability should be emphasized in slope warning.
Microplastic pollution control strategy
Authors: Zhong Wei , Li Shengnan 
Published: August 2020

Abstract
As a new pollutant, microplastics have attracted more and more attention. This paper discusses the primary and secondary sources of microplastics and the ecological impact, and reveals the urgency of microplastics pollution control in the current environmental pollution. In order to deal with the deteriorating environmental problems caused by microplastics, it is proposed to strengthen policy support from the perspective of legislation, clarify relevant responsibilities, improve technical standards, and scientifically divide the types of microplastics. This study proposes to improve the ability to integrate the industrial chain from a technical perspective, and to control the production of microplastics from the source to solve the environmental pollution problems caused by microplastics.
Influence of W-type and U-type ventilation methods on working face
Authors: Guo Linming , Yao Jianwei , Xiashou Su 
Published: August 2020

Abstract
To study the influence of U-type ventilation and W-type ventilation on working face and goaf, the monitoring data of gas, carbon monoxide, carbon dioxide, and other gas concentration and air volume in working face 9-204 and 9-211 of Dianping Coal Mine were systematically analyzed. The results show that under the W-type ventilation mode, the air leakage of the working face is small, which will not cause gas accumulation at the upper corner and the end; there is no spontaneous combustion in the gob of these two working faces, so the advancing speed of these work face matches the spontaneous combustion period; the oxidation degree of the coal left in the gob with U-type ventilation is slightly higher than that with the W-type ventilation.
Research on reducing NOx emissions during start-up period of ultra-supercritical 1000MW unit
Authors: Zhang Leying , Shen Zhiyong , Li Dong , Li Jun 
Published: August 2020

Abstract
Due to the limitation of boiler operating condition, the NOx emission from coal-fired power plant will exceed the standard during the start-up period (the initial stage of grid connection). According to the specific situation of 1000MW ultra-supercritical coal-fired unit in Taizhou Power Generation Co., Ltd. of China Energy Group, this paper analyzes the NOx emission and the reasons for exceeding the standard in the start-up period of the unit. In order to solve this problem, this paper puts forward several measures to reduce NOx emission during unit start-up.
Analysis on the Cost Control of Container Liner Shipping Companies under the Global Sulphur Limit Directive
Authors: Ouyang Yuqing 
Published: August 2020

Abstract
With the increasing attention of the international community to the ecological environment, shipping companies should take environmental protection into account while pursuing economic interests. The introduction of “Global Sulphur Limit Directive” shows that the shipping industry attaches great importance to environmental protection. However this directive also brings many challenges to shipping companies. This paper is about the cost control of container liner shipping companies under the “Global Sulphur Limit Directive”. It analyzes the inevitability of sulphur emission control in container liner shipping companies under the “Global sulphur limit Directive”, lists the existing approaches of sulphur emission control of container liner shipping companies and analyzes the impact of this directive on container liner shipping companies. Finally, based on the main challenge—the rise of operating cost, some suggestions are given in this paper.
Effect of different calcium salt on rheology, color and odors of pear jam
Authors: Cao Xuehui , Wang Zhenni , Bai Ge , Zhu Danshi 
Published: August 2020

Abstract
This paper investigated the effects of pear jam with different calcium salt, calcium chloride, calcium acetate and calcium lactate on the properties of jam. The rheological, physicochemical and electronic nose of jam were studied. The results showed that every calcium salts added could change in the rheology of the jam. The rheology viscosity order in jam was calcium chloride > calcium acetate > calcium lactate. Also, the differences in the soluble solids, VC, color and odors were observed among the jam samples in the experiment. The addition of calcium salts made the content of soluble solids and VC increased, titratable acidity, color and odors couid be retained. The use of calcium salt improved quality of pear jam. They would improve consumer acceptance.
Research and test of electrochemical corrosion in NC machining of 7 series aluminum alloy aircraft structure parts
Authors: Xu Qiang , Chen Xuezhen , Fei Ya , Wang Wei 
Published: August 2020

Abstract
In order to avoid the corrosion of 7 series aircraft aluminum alloy structural parts in the process of NC machining. For GB6144 and JB7453, in the process of 7 series alloy aluminum aircraft structural parts NC machining, the evaluation of the anti-corrosion performance of the water-based cutting fluid used in the evaluation of the material pertinence is not strong, the time length index is insufficient, and the galvanic corrosion performance is lack. Based on the analysis of the mechanism of corrosion by combining the processing conditions and processing environment of 7 series alloy aluminum aircraft structural parts, a semi immersion corrosion test was designed to compare the electrochemical corrosion resistance of four water-based synthetic cutting fluids. The test can evaluate and compare the anti-corrosion performance of different cutting fluids for 7 series alloy aluminum aircraft structure, and provide guidance for the optimization and management of 7 series alloy aluminum aircraft structure.
Two phase numerical simulation of continuous abrasive water jet system based on EDEM
Authors: Li Liangwei 
Published: August 2020

Abstract
To improve continuous supply ability of present pre mixed abrasive water jet (AWJ) system, a new type of continuous AWJ is proposed and its formation mechanism is revealed. Simulation of abrasive entrance and a mixing chamber, pipes, cutting nozzle flow field data using FLUENT software, with area ratio M change, the abrasive cutting nozzle end pressure and entrance into contradiction, the curve of intersection of M=5 is the key point of abrasive jet and material handling division. The solid-liquid coupling simulation method of abrasive particles and water was formed by using edem software.
Deformation Control Study on Foundation Pit Support by Pre-stressed Pile-anchor
Authors: Qiang Zhang 
Published: August 2020

Abstract
In this paper, through the study of the optimization design of the prestressed anchor foundation pit excavation, the problems that are not considered in the design calculation of the multi-pivot pile anchor support are analyzed. At the same time, according to the design and calculation of foundation pit excavation, the optimization model of the prestressed anchor to effectively control the deformation of foundation pit is put forward under the condition of not considering the support design of foundation pit, only considering the influence of construction.
Safety risk analysis and control of tower crane
Authors: Jiang Tiantian 
Published: August 2020

Abstract
Tower crane is one of the vertical transport machinery widely used in the construction at present. Due to its own structure and safety management defects, accidents often occur and have serious consequences [1]. Therefore, it is of great significance to study the safety accidents of tower crane. In this paper, through a large number of accident statistical analysis and expert interviews, from the analysis of the entire process of tower crane installation, use and disassembly stage, the accident tree with the tower crane safety incident as the top event is established. Through the qualitative analysis of the accident tree, the minimum cut (diameter) set is obtained, on this basis, the structural importance of all basic events is sorted, the main factors affecting the safety accident of the tower crane are determined, and the corresponding management and control are proposed, and provide a basis for preventing tower crane accidents and controlling tower crane risks.
Research on Smart Artisan on Modern Apprenticeship Pattern in the Era of Artificial Intelligence
Authors: Ni Hui-jun 
Published: August 2020

Abstract
This paper explores the smart artisan-cultivating strategies of modern apprenticeship and builds a system of craftsmanship’s upgrade under the deep integration of industrialization and information. This will play a certain role in promoting the cultivation of artisans based on the modern apprenticeship and even the progress of China’s energy industry. Further, this research provides useful tools for organizational career development through the power of enterprise’ examples of craftsmen.
Based on fuzzy theory analysis method applied to community underground building fire risk assessment
Authors: Wen Zhang Zheng 
Published: August 2020

Abstract
The overall stability of the underground building community is related to the community, and the fire safety of the underground building is the top priority. Starting from the fire safety of underground buildings, this paper establishes the fire safety risk assessment system of underground buildings, uses AHP to determine the index weight, then applies the fuzzy theory to the comprehensive evaluation of underground buildings, determines the grade of underground buildings, and applies the fuzzy theory to the community fire safety of underground buildings, hoping to provide some reference for community fire safety.
The effect of parking lots distribution arrangements on environmental noise level for the universities campuses
Authors: Hassan Susan Abed , Ibrahim Shatha AJ. 
Published: August 2020

Abstract
Recent years witnessed wide increased in private car numbers in Baghdad city. Cause of the lack of public transportations. That leads to increase of demands for car parking, which caused many environmental problems. Recent studies focused on the field of environmental noise levels reduction in cities and educational buildings. This research problem is that there were no obvious studies about the effect of parking lots distribution on environmental noise levels for the universities campuses. The aim of this research is to explore the environmental noise levels resulting from parking lots distribution arrangements within the southern complex at Al-Nahrain University in Baghdad. Software program had been adopted to measure the levels of environmental noise for the educational complex to determine the levels of environmental noise with the future prediction of environmental noise levels in the event of an increase in the number of car parking spaces.
The Role Of Addition In Leftover Places In The Sustainability Of Historical Buildings
Authors: Hussain Sarah Silan , Hussain Asmaa Muhamad 
Published: August 2020

Abstract
Leftover places are one of the phenomena faced by the built environment, which is subject to continuous renewal and development. These leftover are returned as empty spaces, sometimes positively exploited as green areas, and sometimes negative, to appear neglected. These leftover are distributed in different parts of the built environment. As for buildings, they are distributed around them - forward, backward, or lower, and sometimes above or between two buildings. Interference with these places appears as additions or as an expansion of existing buildings. The previous knowledge dealt with the nature of these additions from different aspects, especially in the historical buildings in terms of controls and determinants, but the need appears to clarify the effect of adding on these buildings and the sustainability of their functional and formal performance, so the research problem stipulated the “need to explore the role of the addition within the leftover places of historical buildings in its functional and formal sustainability”. The research methodology was based on three phases: the first is to build a conceptual framework on the concept of sustainability and its dimensions, the concept of sustainable preservation of historical buildings, its policies and levels, and its relation to the concept of leftover places, their types, objectives, and characteristics. Secondly, building a theoretical framework, which is the first step in solving the research problem, which addresses the concept of addition, its justifications, and types, as well as the policies and criteria for adding to historical buildings, and thirdly, conducting an applied study on selected samples from historical buildings, “local and global”, which were exposed to addition interventions, which were divided into two groups according to the functional and site diversity, finally, analyze the results and determine the conclusions. The most important findings of the research are despite the existence of a conflict between changing needs and between values and intellectual and architectural meanings of historical buildings, but this conflict represents the starting point for contemporary additions that achieve sustainability by embracing the past with all its values, the present with all its appearance and the future with all its manifestations.
The effect of the characteristics formation of urban open space on thermal comfort for pedestrian
Authors: Ibraheem Samer Qais , Hassan Susan Abed 
Published: August 2020

Abstract
Urban spaces are prominent urban configurations for the cities, its important came from its role on encourage human daily social communication and activities. During last decades several studies searched on achieving thermal comfort in cities and urban spaces, the importance of providing thermal comfort at the urban scale in the city had emerged because of its importance to pedestrian daily activities. However, the study of the characteristics formation of open spaces and their effect on providing thermal comfort in the city of Baghdad as an example of hot dry areas was not addressed previously, and this is what represents the research problem. This research aims to analyze the reality of the situation of (Al Ghurery Square) in Al Rashid Street and study the effect of its formal properties on thermal comfort Using Envi-Met Software. The results showed that the Predicted mean vote, Mean radiant temperature near the arcade surrounding the semicircular building achieved better results as compare to street space. While the wind speeds in the street space was higher.
The spatial organization strategies of productive cities
Authors: Hasan N A 
Published: August 2020

Abstract
The cities provide the possibility of achieving gains and production opportunities, and the productive city has been explored as an important advantage of sustainable development, as productivity and sustainability challenges and opportunities are part of an interconnected relationship and dynamically system. Studies have focused on the way in which places are designed at the local level as a major – enabler factor to productivity, and that strategic design interventions can drive evolutions towards a higher level of aspirant. Accordingly, the problem of the research was identified as “the absence of a theoretical framework for the spatial organization strategies and its role in productive cities development.”

To address the research problem, a theoretical framework has been built for the spatial organization strategies of productive cities and depend on its derived vocabulary to analyze a number of contemporary urban elected models that have adopted intervention and treatment procedures for the vocabulary and indicators of the subject of the research, which reflects the design strategies embodying what was presented by contemporary urban trends. The research reached a set of theoretical and practical conclusions concerning formulas that achieve the spatial organization strategies of productive cities.
Automation of the spatial indicators and the sustainability of regional planning
Authors: Ebraheem Ammar Khalil 
Published: August 2020

Abstract
They are many changes have been done in the spatial analysis work, by developing techniques and mathematical models, especially after rapid development in spatial information technologies, like GIS, GPS, an Remote Sensing, all previous discussing gives planners new capabilities through controlling on space and place variables, and how they can interpretation these variables as systems with relationship among them, with its huge numbers of elements. These technologies developed new kinds of indicators related to spatial dimension; these indicators take in it is values the weight value of location, so it represented more actual calculated value for location.
Research are selecting Holy Najaf Governorate to be it is case study, and to get spatial indictors can help to directed spatial development strategy for making spatial structural plan for governorate. We use cells analysis through potentiality analysis as one of simple spatial techniques can give us interesting spatial results, also the case study having variety and separated assets and resources, so the applying technique give us important results, like, there are no important or leader elements for developing process, but these will be done through actual exist for spatial potentiality, also, according to adapted policy by local governorate, in this case we are can putting different priorities depending on spatial capabilities for spatial development.
Structural Performance of Slender RC Columns with Cross and Square-Shaped under Compression Load
Authors: Abdualrahman Safaa Qays , Al-Zuhairi Alaa Hussein 
Published: August 2020

Abstract
The idea of using slender Reinforced Concrete (RC) columns with cross-shaped (+-shaped) instead of columns with square-shaped was discussed in this paper. The use of +-shaped columns provides many architectural and structural advantages, such as avoiding prominent columns edges and improved the structural response of member. Therefore, this study explores the structural response of slender +-shaped columns experimentally and numerically by nonlinear finite element analysis using Abaqus simulation tools. The results showed an excellent convergence in strength between numerical and test results with an average standard deviation of 0.05 and 0.07. Besides that, the use of +-shaped columns led to improve the ultimate strength and reduce deflections in all stages of loading, especially with the slenderness ratio more than 40, as compared with square-shaped column. Two design approaches were suggested to evaluate the ultimate strength of +-shaped columns with different slenderness ratios. Briefly, the results showed good structural response of +-shaped columns as compared with square-shaped columns, but further studies are needed to establish the behavior of this type of column, particularly with varying states of loading.