bluuebunny/crossref_metadata_2025_split huggingface dataset:
Real time cost control algorithm of complex construction project based on BIM
Authors: Zhang Lili , Li Xu , Zhang Zhuoqun 
Published: May 2021

Abstract
The existing project cost control algorithms do not consider the task coupling characteristics in the project cost, and the calculation is easily affected by the coupling, resulting in a large mean square error. Therefore, a BIM based real-time control algorithm for complex construction cost is proposed. Firstly, BIM method is used to optimize the allocation of engineering resources. Secondly, considering the coupling of tasks in project cost, demand side management structure is used to decouple. Then, the equivalent approximate control model is established to calculate the cost factors to realize the cost control of the project. In order to verify the feasibility of the design algorithm, the simulation results show that the control response of the design algorithm is higher, and the root mean square error is lower, which meets the original intention of the design.
An underwater intelligent detecting robot for the inverted siphons in South-to-North Water Transfer Project
Authors: Yin Hao , Huai Xianfeng , Che Chuanjin , Chen Mingxiang , Zhou Zhioyng 
Published: May 2021

Abstract
This paper introduces an underwater intelligent detecting robot for the inverted siphons in South-to-North Water Transfer Project. Compared with the detecting robot designed for the aqueduct in South-to-North Water Transfer Project, the detection requirements of inverted siphons are much more challenging, caused by the high pressure and fully closed environment characteristics of the inverted siphon itself. Therefore, this newly designed robot should be a fully automatic machine that can be remotely controlled with a wired power supply and signal transferring system. Furthermore, the cameras require 360o observation of the siphon, and no water leakage is allowed during the detection. With these design criteria, we have redesigned a brand new under water intelligent detecting robot, which can detect and evaluate surface cracks in real-time through remote manipulation.
Analysis on the Application of Constant Shadow Space in the Building Veranda during the Peak Period of Students’ Attendance in Hot Summer Areas --Taking the Southbound Veranda of A University Teaching Building in Guangzhou as an Example
Authors: Guohui Luo , Yingqi Liu , Zhaoxian Gong 
Published: May 2021

Abstract
The shadow space in the outdoor public space is often sought by people when they go out. This paper explains the related concepts of ‘constant shadow’ space in hot summer areas. By taking a university in Guangzhou as an example, the author analyzes analyzed the shaping conditions of ‘constant shadow’ space in the southbound veranda during the peak attendance period when it is necessary to seek shading. We simulate and verify the relationship between the sun height angle and the construction of ‘constant shadow’ space through ECOTECT. By doing that, it is expected to provide ideas for the design and optimization of constant shadow space in hot summer areas.
On the structural elements features of ancestral temple in Huizhou
Authors: Zhang Xiao , Li Yunzhang , Bi Zhongsong 
Published: May 2021

Abstract
Huizhou ancestral temple is an agglomeration of Huizhou architectural culture, which has distinct local characteristics and times characteristics. This article from the Huizhou ancestral temple of the main structural members, Including: beam, column, dougong, roof and so on; By means of comparison, enumeration and statistics, the characteristics of structural members of Huizhou ancestral temples are analyzed. This paper summarizes the evolution of structural column from shuttle-shaped column to straight column in Huizhou ancestral temple; Changes in the ratio of length to width of benincasa hispida-shaped beam; The internal structure of the building adopts a combination of round ridge roofs and miter roofs; tiaowo (one form of dougong) and other structural characteristics of Huizhou ancestral temple.
Research on the Evaluation Method of the Health State of Transmission Tower
Authors: Guo Huang , Binrong Zhu 
Published: May 2021

Abstract
Due to long-term environmental effects such as wind, rain and sun, the transmission tower components are easy to bend and corrode, which poses hidden dangers to the safe operation of transmission lines. For the problem of complex and poor practicability of evaluation methods of tower state, a practical method for evaluating the health state of transmission towers is proposed to meet the actual needs in this paper.
Effect of rubber powder modification on the aging resistance of asphalt binder
Authors: Gao Kaikai , Abulimiti Nuermaimaiti , Kuai Haidong , Chen Fang , Yang Zhengxun 
Published: May 2021

Abstract
The rubber powder produced by waste rubber was used to modify asphalt, which was conducted in aging test. The effect of rubber powder modification on the aging resistance of asphalt binder was studied by the means of basic physical properties test, dynamic shear rheological test and infrared spectrum analysis. Results indicate that the addition of rubber powder can reduce the degradation of aromatic, which makes the rubber powder modified asphalt shows better aging resistance and lower temperature sensitivity. After aging, the change of rheological properties of rubber modified asphalt is relatively small, and it also shows a stable high temperature performance.
Current status of hazardous waste disposal technology
Authors: Maowei Wu , Jiahao Liu , Qifen Li , Yongwen Yang 
Published: May 2021

Abstract
Hazardous wastes refer to wastes with hazardous characteristics that are included in the national hazardous waste list or identified in accordance with the hazardous waste identification standards and identification methods prescribed by the state. Hazardous waste disposal methods are relatively mature including incineration treatment technology, plasma treatment technology, microwave treatment technology, pyrolysis vaporization, high temperature cooking, chemical method and landfill, etc. The final disposal achieves the effects of detoxification, reduction and stabilization.
Galerkin Format and Analysis of Mathematical Model of Groundwater Pollution
Authors: Li Fanchun 
Published: May 2021

Abstract
As an important resource for people to survive, water plays an important role in human life and industrial and agricultural production. However, with the development of industry, groundwater pollution and surface decline are becoming more and more serious. As one of the important pollution sources of water pollution, nitrogen-containing pollutants play a very important role in the strategic reserve of water resources. It can be seen that scientific management and evaluation of the quality of water resources are of great significance for the rational development and utilization of water resources. Based on the mathematical model of groundwater pollution, four full discrete Galerkin finite element schemes are constructed. In this paper, the convergence and stability of these four schemes are discussed in due course. In order to estimate the maximum error of the scheme, it can not only solve the seepage problem with finite elements, but also understand the transportation law of matter in porous media to a certain extent.
Finite element analysis of flexural performance of different strength basic magnesium sulfate cement concrete beams
Authors: Li Siyu , Pei Changchun 
Published: May 2021

Abstract
In this paper, through ANSYS finite element simulation analysis, the effects of initial cracks, mid-span bending moment and deflection of different grades of basic magnesium sulfate cement concrete beams are studied. The research results show that as the grade of basic magnesium sulfate cement concrete increases, the mid-span bending moment during initial cracking gradually increases overall, while the bending stiffness increases while the deflection decreases. As the grade of basic magnesium sulfate cement concrete increases, the mid-span bending moment at yield gradually increases, and the mid-span deflection decreases gradually. Research shows that basic magnesium sulfate cement concrete has good toughness and strength, and can effectively improve the bending performance of its beam members.
An Evaluation Model for Fire Fighting and Emergency Evacuation Plan
Authors: Haihao CUI 
Published: May 2021

Abstract
Fire fighting and emergency evacuation plan is important guidance for the fighting of fire rescue and daily training. Evaluation of plan is an essential work for the preparation and implementation of plan. In order to evaluate the plan scientifically, the quantitative evaluation model of fire fighting and emergency evacuation plan is established based on fuzzy analytic hierarchy process method (FAHP), including the evaluation index system, index weight and evaluation process. The case study shows that the model can be used for the quantitative evaluation of plan comprehensively and accurately, and the evaluation results can provide adequate reference for the revision and improvement of plan.
Estimation on afflux of bridge on plain rivers related to blockage ratio and Froude number
Authors: Zhang Fengshan , Cao Mengyi , He Xiaojing , Xie Yuzhi 
Published: May 2021

Abstract
The construction of hydraulic structures such as abutments and piers in natural waterways contributes to the contraction of river channels and the upstream water level rise. The maximum increase in the water level (afflux) is considered to be a major flood risk after a new bridge is built, and the accurate estimation of it is always an important work in designing a bridge construction. However, systematic studies on the prediction of the backwater effects of piers considering the blockage ratios within 10% are rarely reported. In this paper, a 2D hydrodynamic model was numerically simulated to investigate the effect of blockage ratios in the range of 2% - 9% on the amount and location of afflux. The distribution of depth-averaged flow velocities and water level changes around bridge piers was also discussed. Results indicate that the development and attenuation of backwater effects along the river channel falls naturally into 4 regions, and as the blockage ratio gets greater, afflux increases with its location moving farther from the zone strongly influenced by the bridge piers. It can be concluded that a blockage ratio of more than 7% should be one of the key concerns to river engineers in evaluating the capacity of river channels in plains to carry flood flows. On this basis, this article presented a parametric optimization formula based on blockage ratio and Froude number to estimate afflux of rectangle bridge piers with relatively low blockage ratios on plan rivers, and to provide effective assistance in hydraulic calculation of bridge design.
Wuhan City Park Landscape Design Based on River Culture
Authors: Yin Zhang , Qi Zhou 
Published: May 2021

Abstract
Urban parks, as one of the starting points of urban green development, are a composite product of the interaction between people and nature. They play an important role in displaying and continuing the city’s culture. Therefore, it is critical to attach importance to the design and renewal of urban parks. This article takes Wuhan City Park as the specific research object, and extracts the “water”, “fish” and “bubble” in the “river culture” as landscape design elements. To show, let people feel the baptism of urban culture while visiting the park, and re-entrust the park with the mission of inheriting cultural heritage.
The Research and Development Prospects of Recycling and Utilizing Technology for Automotive Braking Energy
Authors: Li Jianwei 
Published: May 2021

Abstract
Recycling the automotive braking energy and regenerating the recovered energy back to the automobile as a driving force when the car accelerates or starts is an effective way to improve the automotive rate of fuel utilization, ameliorate vehicle emissions performance. The key to automotive braking energy recycling technology is how to store the energy generated during the braking process of the automobile. The current situation of recycling and utilizing the automotive braking energy was analysed. On the basis of the energy storage solutions of the battery, an equipment was put forward, which utilized the energy of braking to drive the SR motor, the kinetic energy would transform into electrical energy during the process of braking so as to charge the electrical equipment and the battery. While starting or accelerating, the SR motor not only provided power to the transmission, but also provided compressed air for improving the combustion by driving the compressor.
The Protective Effect of Silane Composite Emulsion on Steel Bars in Cement-based Materials
Authors: Li Li 
Published: May 2021

Abstract
This article analyzes the relevant factors affecting the durability of reinforcing steel materials. The research content of this paper includes chloride ion attack, sulfate attack, external load influence, water-cement ratio, etc. The author combines the preparation process of silane composite emulsion with raw material preparation, preparation process analysis, protection mechanism analysis, and surface contact angle measurement, and establishes correlation experiments to analyze the protective effect of silane composite emulsion on steel bars. The author’s purpose is to enhance the awareness of the protective effect of silane composite emulsions, and to provide data support for the subsequent better promotion of materials.
Research on Polycyclic Aromatic Hydrocarbons in Environment from 2005 to 2020: A bibliometric analysis
Authors: Ren Bingnan 
Published: May 2021

Abstract
Polycyclic aromatic hydrocarbons (PAHs) are known to be toxic, mutagenic and carcinogenic. With extensive and persistent existence, polycyclic aromatic hydrocarbons can easily accumulate in the human body, posing a great risk to human health. With more and more studies on PAHs, it is essential to analyse hotspots and indicate emerging trends as well. The bibliometric study on PAHs in environment was analysed the papers by the method based on the CiteSpace, which published during the period of 2005-2020 in Web of Science database. The results indicated that the trend of this field is “pollution sources of polycyclic aromatic hydrocarbons”. And “PM2.5, health risk, impact, source identification” have become hot spots. The keywords with the strongest citation bursts are including toxicity, spatial distribution, health risk, pm2.5. There are many cross clusters links among organochlorine peptides, biodegradation, particle, positive matrix factorization.
Rehabilitation Landscape Design in The Community Environment--Take Xintiandi-Blue Diamond Community as An Example
Authors: Zhang Yin , Hu Jixin 
Published: May 2021

Abstract
Today’s society is fast-paced and people are under a lot of pressure from work and school. They live in a space built of steel and concrete, separated from the natural environment for a long time. The fierce social competition has led to anxiety, negativity and other negative energy. The incidence of sub-health diseases and chronic diseases is increasing. As the world’s most populous country, China is now facing an accelerating aging process. People are beginning to re-examine their psychological and social behaviors in their da il y liv es and ar e becoming more aware of the importance of the natural environment to human health. As the most frequently used activity space in people’s daily life, community environment is undoubtedly the best place for people to relieve their emotions and relax. It is important to study how to integrate healing landscape into community environment design to improve the physical and mental health of urban residents.
Green Construction Evaluation System Based on BIM Distributed Cloud Service
Authors: Li Yan , Gao Xiong , Liu Xiaowei , Zhang Ruijue , Wu Yansheng 
Published: May 2021

Abstract
Based on the BIM cloud service, in the green construction evaluation system, this paper introduces the sub-module and the overall architecture. In the sub-module, it includes auxiliary evaluation system, load balancing architecture, and data service. It is an effective method to store data. Through the conversion and integration of data storage methods of various computer protocols, the traditional green construction evaluation methods can be efficiently and accurately evaluated by cloud computing servers. At the same time, the database can hold a large amount of data and continue to expand.
Influences of Sodium Silicate Modulus on Mechanical Properties and Microstructure of Fly Ash Geopolymer
Authors: Gao Yiting , Feng Yongzhen , Tong Guoqing , Tang Xiongyu 
Published: May 2021

Abstract
In order to explore the water glass modulus that can make the fly ash base polymer the highest strength and the best performance, fly ash is used as the raw material to prepare alkali-activated fly ash-based geopolymer test blocks. Through unconfined compression test, SEM test, XRD test, the influence of different water glass modulus and age on its mechanical properties is studied. The results are as follows. When the sodium silicate modulus is 1.1, the strength of fly ash-based geopolymer is the highest, reaching 6.1MPa after 28 days of curing. With the growth of age, the strength of fly ash-based geopolymers continues to increase. It is observed from the SEM test that when the modulus is 1.1, the structure is dense, the porosity is small, the alkali excitation effect is obvious, and the reaction is relatively complete.
Landscape Planning and Design of Zhanggongdi City Park Based on Human Ecology
Authors: Yin Zhang , Feng Ding 
Published: May 2021

Abstract
One of the most important functions taken by a Urban ecological park is to protect and improve the urban environment, which is the green space of the city. Integrating ecology and humanity into the park makes the park have the dual significance of protecting the ecological environment and inheriting the history and culture. From the macro and micro perspectives, this paper makes a systematic analysis of the base, explores the regional culture, takes ecology as an important attribute, and designs the park with nine provincial thoroughfares as the theme culture, so as to realize the design goal of “integrating humanity into ecology, building landscape context” and promote the green development of human and nature.
Ductility reduction factor analysis of RC frames considering influences of infilled walls
Authors: Yanjun LI , Dagang LU , Zhenyu WANG 
Published: May 2021

Abstract
The value of ductility reduction factor is directly related to seismic design force. And then it has a vital impact on the safety and economy of structures. Influences of infilled walls as nonstructural members on ductility reduction factor is usual neglected in current codes. According to Chines code for seismic design of buildings six typical RC frames with different height in seismic precautionary intensity of 8-degree and design basic acceleration of ground motion of 0.2g are designed. The rationality and accuracy of finite element models are verified by comparing simulation results with test results. Finite element models of RC frame with and without infilled walls are built on OpenSees software. The influence of infilled walls on ductility reduction factor of RC frames are developed by adaptive pushover analysis (APOA) and incremental dynamic analysis (IDA). Results show that influences of infilled walls on ductility reduction factor of RC frames is significant, but with increase of structural height influences gradually decline. Based on analysis results of this paper, the value of ductility reduction factor of RC frame without infilled walls is 2.5 and that of RC frame with infilled walls is 3.6. Analysis methods affect the value of ductility reduction factor significantly. Values of ductility reduction factor based on APOA is less than those based on IDA.
Study on pollutant emission inventory of port
Authors: Guo Xu , Xu Da 
Published: May 2021

Abstract
With the frequent exchanges of Global trade, ports play an increasingly important role in economic development. However, the environmental problems caused by the port are also increasing. As the most basic, comprehensive and practical information, emission inventory is the premise of scientifically formulating and improving the control measures and policies of pollutants from ships and ports. In this study, some terminals in coastal ports are taken as an example to provide technical support for port pollutant emission estimation and pollution control by compiling pollutant emission inventory..
The use of artificial intelligence (AI) and Big-Data to improve energy consumption in existing buildings
Authors: Alwetaishi Mamdooh , Shamseldin Amal 
Published: May 2021

Abstract
The use of Artificial Intelligence AI and Big data can contribute to improve energy performance in buildings. There are so many data are available in different institutions within a country such as Ministry of housing and electricity companies. The aim of this research is to propose a link between all these institutions with the aid of field measurement and occupants’ thermal sensation. The work used various methods to carry out this research including field measurement, computer modelling and survey. It was found that use of AI in existing buildings can improve energy performance significantly. The current research focused on optimization of WWR (Window to Wall Ratio) with orientation. WWR for western zones should not exceed 15% in extreme hot and humid climate and it can reduce energy consumption by 20%.
Designing a facade by biomimicry science to effectively control natural light in buildings (Glare analysis)
Authors: Sankaewthong Sukhum , Horanont Teerayut , miyata Kazunori , Karnjana Jessada 
Published: May 2021

Abstract
The increasingly popular design trend of glazed facades using daylight in buildings has made it essential for innovations to eliminate the unnecessary intrusion of sunlight in spaces. This study aims to create a kinetic façade pattern by referring DNA structure and photosynthetic behaviour to mimic biomimicry science characteristics in Wallacei evolutionary software for generating possible patterns. Daylight glare thresholds were determined as an essential factor for user productive work. Comparison of three-building envelope potential was made for preparing spaces (zones A, B) in Bangkok condition; without a façade, with a static facade, and with a kinetic façade. DIVA software was used to analyse glare in terms of daylight glare probability (DGP). First, DGP (without façade) for zones A and B were 100% and 55%, or intolerable glare. Second, DGP (static façade) for zones A and B were 59%, 30%; zone A was intolerable, and B imperceptible. Third, DGP (kinetic façade) for zones A and B were 28% (imperceptible glare). Therefore, a kinetic façade has a high potential for protecting against unsuitable glare. These findings may serve as preliminary evidence for understanding kinetic façade potential for self-adjustment by light intensity to improve quality of life for occupant use of spaces.