bluuebunny/crossref_metadata_2025_split huggingface dataset:
Investigation and Research on the Cognition of Traditional Village Landscape Environment Improvement Strategy Based on SPSS Analysis
Authors: Wang Xiaodong , Chen Gang , Wang Xiaomei 
Published: May 2020

Abstract
Xinjiang has a unique geographical climate and natural environment, and contains a large number of traditional villages with distinctive regional characteristics. With the steady implementation of the rural revitalization strategy, the vast number of traditional villages has ushered in a great opportunity for the traditional village landscape revival. Based on extensive fields, the author adheres to the principle of linking theory with practice, and inheriting and protecting both principles. The author investigates and analyzes the awareness of traditional village landscape environmental improvement strategies. Taking Moyu County and Keping County as examples, field surveys, questionnaire design and SPSS cross analysis were performed. The results show that the starting point of the traditional village landscape environment improvement is accurate, the implementation path is reasonable, and the principles are scientific. Respondents from different regions and occupational categories have a high degree of uniformity in the judgment and selection of variable factors, and have harmonious but different characteristics. Because of different knowledge backgrounds, life experiences, professional responsibilities, and environment, the results of variable cross-analysis also reflect a certain degree of focus and difference. Village cadres, people’s teachers, and local people have obvious representativeness and advanced nature.
Empirical Research on Innovation Efficiency in China Based on SFA Model
Authors: Wang Jiawei , Han Dongyang , Wang Yifan 
Published: May 2020

Abstract
To study the specific situation of China’s innovation efficiency over the years, and explore the impact of state-owned enterprise-scale, tax incentives, regional export environment, R&D funds and R&D personnel on innovation activities, this paper selects the panel data of provinces and cities from 2009 to 2015, divides innovation activities into scientific research and development stage and value realization stage, and constructs SFA model for research. The results show that China’s innovation level is in the range of 0.5-0.8, and the overall development is unbalanced and uncoordinated. The government’s capital investment has an obvious promotion impact on the local innovation efficiency, and the effect of other factors varies from stage to stage. Finally, according to the research results, the existing problems are analysed, and substantive suggestions are put forward.
Experimental Research on Inhibition of temperature to inverse martensitic phase transformation of NiTi Shape Memory Alloy
Authors: Yang Zhile , Liu Jinlong , Lin Junqi 
Published: May 2020

Abstract
The effects of temperature changes, load cycles, and amplitude changes on the mechanical properties of NiTi shape memory alloys such as the attenuation of energy dissipation capacity, equivalent damping ratio, and residual strain were studied experimentally. Experimental results show that: under different temperature and amplitude, the shape memory alloy achieves stable performance after 10 cycles, and the attenuation of energy dissipation capacity mainly occurs in the first 6 cycles; as the temperature decreases or the number of cycles increases, equivalent damping ratio tends to decrease; When the temperature decreases near the completion temperature of austenite transformation, the residual strain is significantly affected. Even if the strain amplitude is small, residual deformation accumulation will occur, inhibiting the occurrence of reverse martensite transformation, and it is not good for the super-elasticity of SMA.
Occupants’ Responses to Naturally Ventilated Buildings in Northern Guizhou, China
Authors: Liu Jing , Cai Ting , Xia Yang , Ma Yu 
Published: May 2020

Abstract
With the acceleration of urbanization, suggestions that are based on findings gathering from field studies on building refurbishment, new building design and building operation and maitenance are essential to achieve building energy saving and carbon emmision target. Therefore, a field investigation on thermal comfort and adaptive responses of occupants in naturally ventilated buildings were conducted during winer time in Zunyi. Without central heating system supply, the mean value of indoor air temperature is 14.86°C. But more than half of occupants (57.9%) who were satisfied with surrounding thermal environment. People are active to utilize various strategies to restore thermal comfort of their own. Adjusting clothing levels and using heating devices (e.g. fan heater, portable hand warmer, etc.) are the most popular adaptive behaviours helping them alleviate thermal discomfort caused by lower and humid thermal environment. The aPMV model is developed with adaptive coefficient of -0.33. The findings obtained from this investigation fill gaps in similar researches in northern Guizhou and provide guidelines on building indoor thermal environment improvement considering passive design strategies in this area.
Research on application of O-Cell test in diaphragm foundation
Authors: Huo Shaolei , Dai Guoliang , Gong Weiming 
Published: May 2020

Abstract
O-Cell method with high safety and low cost has been widely applied in many projects compared with the conventional static load test, especially for high bearing capacity deep foundation. It has been applied in building, bridge, offshore wind power foundation, etc. The load-displacement curve of O-Cell test could be well converted into conventional pile top load-displacement curve. Based on different deep foundation styles, the load cell could be manufactured into circle type, rectangle type, bar-type, “L” type, etc. This paper introduces an application of O-Cell test in diaphragm, and the bearing capacity tested is the largest in the world at present with the maximum bearing capacity arriving at 313998kN. The O-Cell method is convenient to obtain maximum bearing capacity of large and deep foundation, an is helpful for designers to design the deep foundation reasonably and economically.
Effect of carbon nanofibers on the pore fractal law of concrete
Authors: Zhang Hengbo , Xu Jinyu , Nie Liangxue 
Published: May 2020

Abstract
In order to explore the effect of carbon nanofibers (CNFs) on the internal pore structure fractal law of concrete, carbon nanofiber reinforced concrete (CNFC) specimens with fiber content of 0%, 0.1%, 0.2%, 0.3% and 0.5% respectively are prepared, the internal pore structures of specimens in each group are analyzed by means of mercury intrusion porosimetry (MIP), and the pore fractal laws are further discussed by introducing fractal theory. The results show that, appropriate amount of CNFs can effectively reduce the total pore volume and the average pore size of concrete, and the inner pore size shows remarkable fractal characteristics, the fitting slope of ln(W

n
/r

n

2) and lnQ

n
can be used as the fractal dimension D

p
of pore surface area; the D

p
decreased firstly then increased with the increase of CNFs content, and the larger D

p
is, the higher the large pore content and the larger the average pore size are.
Seismic Analysis on The Frame Structure Reformed by Cutting off Column and Jacking
Authors: Wang Zhendong , Xu Xinsheng 
Published: May 2020

Abstract
The stiffness of the structure will change after the broken column is jacked up, which directly affects the overall seismic performance of the structure. But up to now, the design method and construction technology of the broken column jacking are not standardized, so it is of great engineering significance to study the seismic performance of the frame structure after the broken column jacking. In this paper, the data before and after jacking and after reinforcement of the whole broken column jacking project of a five-story frame structure in Jinan high tech Zone are simulated and analyzed. Based on the stiffness, El Centro seismic wave, Taft seismic wave and Tianjin artificial wave are selected to analyze the dynamic time history of the structure. Through the study of the change of seismic performance of the structure before and after jacking and after reinforcement, it can provide some guidance for the design and construction of the whole structure jacking.
Research on steel structure technology in civil engineering construction
Authors: Xue Chen 
Published: May 2020

Abstract
In recent years, with the improvement of science and technology level in China, construction technology in the construction industry is constantly improving. In the traditional civil engineering construction, the construction is through the concrete frame structure. Facing the rapid pace of urbanization construction, various new steel structures are applied to modern construction. Although steel structure technology has many advantages, there are still many shortcomings in the application, need improving. This paper discusses the steel structure technology in civil engineering construction.
Influence of Structural Parameters of Cone Piston on Mechanical Properties of Expansion Tube
Authors: Qi Zizhen , Zhang Yuwu , Lin Yuliang 
Published: May 2020

Abstract
Expansion tube absorber is a kind of excellent energy absorption devices owing to its good mechanical characteristics. In this study, the two-dimensional axisymmetric finite element models of expansion tube were established to simulate the influence of length of cone area and radius of cylindrical area on the mechanical properties of expansion tube. It is found that the expansion force increases significantly with the decrease of length of cone area in axial direction. Then, the expansion force reaches a stable value when the semi angle of cone area reaches 45°. The expansion force increases significantly when the radius of cylindrical area increases, but the trend of expansion force-displacement curves does not change. The influence of length of cone area and radius of cylindrical area on the mechanical properties of expansion tube is very regular. The mechanical properties of the expansion tube as absorber are very controllable and versatile, demonstrating that the performance of expansion tube as energy absorber is very reliable.
Particle flow simulation of constitutive behavior of sands
Authors: Zhang Weihua , Zhao Chenggang , Zhang Yinping 
Published: May 2020

Abstract
Particle Flow Code, based on the method of discrete element, overcomes the hypothesis of macroscopic continuum in traditional mechanics model, and can simulate the properties of sands with the linear and the hertz-mindlin contact model in microscopic level. Triaxial shear test of sands is simulated by PFC2D biaxial confined test, and then the effects of microscopic parameters, such as the shear modulus, poisson’s ratio, particle radii, particle shape, contact stiffness, etc., and the confining stress on the macroscopic mechanical properties of sands (dilatancy, phase transformation, fabric, etc.) have been discussed. And finally the microscopic parameters of sand have been calibrated for further study by two contact models respectively.
Analysis and Research on seismic technology in building structure design
Authors: Zhou Chang Xian , Zheng Shao Peng , Ye YouQuan , Wang Hao , Fu Ping 
Published: May 2020

Abstract
In recent years, with the rapid development of China’s social economy, the real estate industry has also ushered in a good opportunity for development. In the building structure, people pay special attention to its safety and stability. From the perspective of the causes of house collapse in China, a large part of it is caused by earthquake, which shows that there are still some deficiencies in the seismic capacity of the building in China. In order to effectively improve this situation, in the actual design of the building structure, it is necessary to comprehensively strengthen the seismic technology in the design of the building structure Use,The following article analyzes and studies this, and the main research direction is the current seismic measures and the main concept design.
Exploration of Engineering Supervision Quality Control Under Uncertain Model
Authors: Xu Xiaona 
Published: May 2020

Abstract
Effective supervision quality control during the construction project implementation is an important measure to ensure the overall construction quality of the project. The effective implementation of the supervision work can greatly improve the overall construction effect of the construction project, can guarantee the construction quality of the project, and at the same time can strictly control the construction cost, construction safety and construction progress. Therefore, the quality control of engineering projects has a crucial role in the construction process of construction projects. This requires an analysis based on the importance of supervision quality control work and the current research status. At the same time, the key points of supervision quality control during the construction process of construction are put forward, so as to give full play to the positive role of supervision quality control work in construction projects and enhance construction projects’ construction level.
Research on Optimal Design of Urban Underground Parking Space
Authors: Fan Fangfang 
Published: May 2020

Abstract
In recent years, with the continuous acceleration of urbanization, underground parking lots have also sprung up and are moving towards intelligence. Due to the rapid development of underground parking lot construction, many problems have also been exposed, such as low space utilization due to unreasonable space design. Therefore, this article optimizes the design of the parking space in terms of the layout of the column network of the underground parking lot, the occupied area of the single parking space, the parking method of the vehicle, and the parking method, so as to improve the utilization rate of the underground parking space resources.
Experimental Study on The Bearing Capacity of Super High Strength Concrete Pole
Authors: Gao Fan , Chai Linjie , Wang Lihuan , Zhang Deguang , Ren Yaning 
Published: May 2020

Abstract
In order to study the ultimate bearing capacity of super high strength concrete pole, the pole type planning and structural design of super high strength concrete pole are carried out. Under the design condition, the ultimate bearing capacity of super high strength concrete pole is tested. By using the finite element software ABAQUS, the finite element model of super high strength concrete pole is established, and the same external load as the test is applied to fit the true type test. The ultimate bearing capacity of super high strength concrete pole is obtained by true type test and finite element numerical simulation.
Study on the hydraulic characteristics of the gradually expanding and gradually contracting watercourse with different width-narrow ratios
Authors: Xueting Wang , Lingyu Huang , Lijian Qi , Yun Zeng 
Published: May 2020

Abstract
The characteristics of the water flow in the gradually expanding and gradually contracting watercourse are very complicated, and the width-to-narrowness ratio has a significant influence on the hydraulic characteristics of the gradually expanding and gradually contracting watercourse. Five three-dimensional hydraulic calculation models with different width-to-narrowness ratios were established to study its hydraulic characteristics. The results show that: (1) river flow gradually appears as the recirculation zone with the increase of the width-to-narrowness ratio. The recirculation zone increases gradually with the increase of the width-to-narrowness ratio and the shapes are different. The flow velocity in the recirculation zone is negatively correlated with the width-to-narrowness ratio. (2) When the width-to-narrowness ratio is small, the shearing force distribution of gradually expanding and gradually contracting sections are basically in “Hump-shape” along the Y-axis; When the width-to-narrowness ratio is large, the section basically shows a trend of “parabola-like” change that increases first and then decreases near the shore, and the average shearing force of the expanding section is larger than that of the contracting section. (3) As the width-to-narrowness ratio of the watercourse increases, the shearing force at the widest part of the river section gradually decreases, and the shearing force of the side wall at the contracting section is larger than that of the expanding section.
Analysis and Determination of early warning index for Mountain Flood Disasters—A Case Study of Yalin River Small Watershed
Authors: Zheng Shi , Lin-lin Hu , Huan-Bao Chen , Hong-xia Tang 
Published: May 2020

Abstract
Determination of the critical rainfall is very important for the influence by mountain torrents with disaster prevention and reduction in significance, which is the priority among priorities of mountain flood early warning work. In this paper, the small watershed of Yalin River as the example, has carried on the analysis and the calculation of flood disaster early warning index. The results show that, the using method is simple and practical, with the certain reference value to the mountain torrent disaster warning.
Overview of Stability and Failure Characteristics of Expansive Soil Bank Slope
Authors: Xueying Zhao , Shunfu Zhang 
Published: May 2020

Abstract
Expansive soil is a type of special clay that expands and softens after water absorption and shrinks and cracks after water loss. It tends to cause engineering accidents such as slope deformation and landslide damage. This paper summarizes the interaction between three engineering properties of expansive soil as well as the slope failure characteristics based on case analysis. In this way, this paper can contribute its share to the design, construction and operation management of the expansive soil bank slope.
Experimental study on seismic performance of shear walls with steel fiber recycled concrete
Authors: Li Xiaohu , Li Lei , Chang Tianfeng 
Published: May 2020

Abstract
The paper studies the seismic performance of shear walls with steel fiber recycled concrete. Four shear wall specimens were designed and manufactured in this paper and tested under low cyclic loading. The effects of waste fiber and recycled aggregate on the seismic behavior of shear wall were studied. The results show that the incorporation of waste fiber can delay the generation of cracks in concrete. The incorporation of waste fiber can improve the bearing capacity and ductility of shear wall to some extent, while the recycled aggregate has little influence on the bearing capacity and ductility of shear wall.
Research on Nanjing Ancient Urban Morphology Evolution Based on Climate Adaptability
Authors: Ruofei Xu 
Published: May 2020

Abstract
Evolution mechanisms and rules of urban morphology were explored mostly from cultural, historical and geographical aspects, but rarely from the aspect of climate adaptability. From the aspect of historical geography, the transition of the Nanjing city came out as the layout changes of the natural and social phenomenon, and combined with the gambling and impelling of the relationship between the human and the nature. The research takes the ancient Nanjing city as an example to analysis the climate adaptability from the site selection and change of the urban morphology., the change of site selection and urban river system were caused by the climatic change, which aroused the continuous change of the urban morphology.
Research on Water Allocation Method of Juzhang River in Yichang City
Authors: Yu Zhiqiang , Wu Jiang , Cao Hao , Hong Xiaofeng , Li Qingqing , Li Ang 
Published: May 2020

Abstract
Water allocation refers to the gradual allocation of the total available water resources or the amount of water that can be allocated to the administrative area, and determines the share of water consumption or the share of water used for living and production in the administrative area. The total amount of available water resources includes the amount of surface water resources and the amount of groundwater resources that can be exploited, minus the overlap between the two. Aiming at the water allocation problem of the Juzhang River, this paper discusses the basic principles of water allocation and the technical route of water allocation plan formulation. A water allocation plan for the Juzhang River Basin was drawn up through steps such as supply and demand forecasting and supply and demand balance analysis. The research can provide a certain reference for the development of water allocation schemes in small and medium-sized river basins.
Research on Hoisting Method of Reinforcement Cage for Underground Continuous Wall
Authors: Liu Mingqi , Dai Bihui , Liu Dewen 
Published: May 2020

Abstract
The hoisting method of reinforcement cage in a diaphragm wall project is studied. Through certain graphic display, the process of hoisting the reinforced cage was described. In this paper, we propose a specific method of hoisting a 880mm thick of reinforcement cage, and the entire specific process and technology of lifting it is also offered. During the hoisting procedure and the lifting transformation process, reinforcement cage hoisting is an important part of construction, and this article has certain reference value to the construction process.
Constructed wetland technology and its application in water quality control of south lake system
Authors: Can Li , Jing Xu 
Published: May 2020

Abstract
Constructed wetland technology is widely used. It has significant effect in the removal of eutrophication factor N, P. From the wetland development and cleansing mechanism of The paper introduces the constructed wetland technology in the use of water treatment of lake form the development of the constructed wetland and the derergency mechanism. The paper especially introduces its application in water quality control of south lake system. In order to analyze the total phosphorus load, it analyze the annual water diversion by the water balance. It discusses the design points of the constructed wetland used in the south lake system. Finally, the outlook of the research in the constructed wetlands and it’s application in eutrophic lake pollution control.
Experimental study on bonding performance of stainless steel bar and concrete
Authors: Qingfu Li , Yihang Kuang , Wei Guo 
Published: May 2020

Abstract
The purpose of this paper is to study the bond behavior between stainless steel bar and concrete. Through the bonding test between reinforcement and concrete, the average bonding force and the distribution of the bonding force between stainless steel bar and concrete are studied. The test results showed that the bond performance between stainless steel bars and concrete was excellent. Within a certain range, the bond performance between stainless steel bars and concrete was proportional to the compressive strength of concrete. The bonding performance of stainless steel bars and concrete was related to the diameter of reinforcement. The larger the diameter of reinforcement, the greater the average bonding stress between reinforcement and concrete. In addition, the area affected by the bonding stress between reinforcement and concrete showed a linear growth trend with the diameter of reinforcement roughly affected as 10 times as the diameter of reinforcements. Stainless bar were similar to ordinary bar, and the peaks of their bond stress with concrete were roughly distributed near the loading end. As the load increased, the effective bond length increased slowly, while the peak stress increased significantly. The peak stress showed an internal shift only when the specimen was near damage.