bluuebunny/crossref_metadata_2025 huggingface dataset:
The influence of regional traditions on the use of wood in works of contemporary American architects
Authors: Lyapin A
Published: May 2021

The article examines the influence of architectural traditions of historical wooden housing construction on wooden structures created by contemporary American architects in three regions of the United States. Architect Charles Moore and his MLTV architecture studio in San Francisco began using wood as the main building material for houses in the experimental ecological and creative community Sea Ranch in the early 1960s. Charles Moore used wooden structures in buildings and developed a general space-planning design of buildings in a classical modernism style. Architect Peter Forbes from Boston, Massachusetts (New England) used wood following the New England tradition of wooden housing construction dating back to the 17th century. Architects Elizabeth Plater-Zyberk and Andres Duany from Miami, Florida (the Deep American South) used the architectural heritage of the American South. On the basis of the southern architectural school of wooden housing construction, which developed under the influence of the hot and humid climate in the 18th-19th centuries, the method of creating small settlements using wood was developed and applied in urban planning. The article concludes that modern American architects consider wood to be a modern building material and use wooden structures in different applications in buildings. Wooden structures are widely used in the regions where original schools of wood construction were created 100 - 300 years ago.
Wooden low-rise construction. New constructive and technological solutions
Authors: Pinaykin I P , Zhadanov V I , Ukrainchenko D A
Published: May 2021

Currently, Russia is in dire need of a large-scale expansion of the construction of low-rise residential buildings, both in urban areas and in rural areas. As of today, various technologies are used in low-rise construction, including those with the use of wood. The feasibility of expanding the choice of wood as the main building material is due to a number of known advantages over other building materials. However, upon a detailed examination of the territory of the Russian Federation as a whole, it should be noted, despite the fact that our country has huge reserves of forest resources, forests are distributed over the territory of our country extremely unevenly. In order to increase the efficiency of wood consumption for the needs of low-rise housing construction, it is proposed to improve the panel construction technology from wood and wood materials by simplifying the structural scheme of the building, increasing its spatial rigidity and reducing the labor intensity of installation. This improvement is realized due to the organic combination of the advantages of frame and panel technologies with the elimination, if possible, of their main structural, installation and operational shortcomings. The proposed technology for erecting a building from wooden panels makes it possible to simplify the design scheme, increase its spatial rigidity and reduce the labor intensity of installation, which gives impetus to further improvement of design solutions for residential buildings, industrial buildings and public facilities designed on the basis of wood and wood materials, ensuring the rational use of material in sparsely wooded areas of our country.
Hardware-software solution for personnel identification for accounting of working hours in a construction organization
Authors: Danilov O F , Nikitin I K , Osipenko A M , Domanskij V O
Published: May 2021

The efficiency of the construction process largely depends on the possibility of reducing costs at all stages. The simplest and most understandable way of saving is the use of methods and models of lean production in such elements as labor productivity, time tracking, reduction in material consumption, rational use of equipment. With the participation of the authors of the article, a system for assessing anomalies in production was developed for one of the construction organizations, which allows, in particular, to monitor the beginning and end of a work shift, the time spent on a specific task, an employee’s late arrival and early departures from work. One of the important elements of the system is a solution related to personnel identification - recognition of faces and images from the lens of the built-in camera of a stationary hardware device, which was named “Infokiosk”. The article describes the methods used to form the solution. The results are presented in the form of an implemented software and hardware solution.
Innovation in the construction industry
Authors: Kuklina M V , Rogov V Y , Erdinieva S N , Urazov I S
Published: May 2021

The article analyzes the state of the construction industry in the modern Russian economy. The authors determined that construction products are the basis for the economic growth of the state, where the main condition is expanded reproduction, which is ensured through investment and the construction of new facilities and facilities. The main growth instruments for the development of the construction industry were government programs to support the construction of new housing, government support for mortgage programs in residential construction, and the launch of national infrastructure development projects in the regions. The most important role of automation and computerization systems, the latest measuring technology, automated control systems for technological processes in the implementation of technological processes in the construction industry is outlined. BIM technology is described that allows the creation of three-dimensional building models to represent the physical and functional properties of the project. The article presents the problems of the industry, which are solved with the help of innovative technologies, and lists the types of innovations in construction.
Development of the innovative digital cluster in the housing and communal sector
Authors: Nikityuk L G , Vikhoreva M V
Published: May 2021

The housing and communal sector occupies one of the main places in the social area, because it contributes to the reproduction of human resources. The housing and communal sector is in a crisis, and the current reforms seem to be ineffective. In this regard, the authors has developed a mechanism of development of innovative digital clusters in the housing and communal sector. It can improve the quality of housing and communal services, will contribute to the development of the innovative environment and digital technologies, creation of sect oral innovation systems in the supporting zones of housing and communal services, intensify investment activity and improve competitiveness of housing and communal companies. The author’s definition of innovation housing and communal clusters is offered, the process of development and implementation of innovative digital projects is described, the assessment of socio-economic effects of innovation projects is provided.
Methodological basis for using artificial intelligence technologies in a construction company
Authors: Nikolaeva D R , Nikolenko T A
Published: May 2021

Increasing requirements for information systems have recently caused interest in the development of artificial intelligence. The direction of development of artificial intelligence covers various fields of science, spheres of life. Artificial intelligence is a promising area, the development of which is being carried out by leading educational, technological, and consulting organizations. An extensive set of AI tools, its types and methods allow us to encourage positive trends in the development of enterprises, increase productivity, minimize costs, as well as the overall development of the economy. In order to ensure the accelerated development of artificial intelligence in the Russian Federation, a strategy for the development of AI has been developed until 2030, which regulates the increase in the growth of proposals for competitive Russian products (services) created using artificial intelligence. Analysis of the achievements of the development of artificial intelligence made it possible to determine the current directions of development.
Problems and Limitations of Sustainable Development of the City of Baikalsk: Formation of a Modern Digital Economy
Authors: Turkova V N , Arkhipova A N , Dorokhova M E
Published: May 2021

The problems of Russian single-industry towns are the main threats to the national social and political instability. Currently, the problems of development of single-industry towns remain one of the most discussed issues. Due to their location and specialization, single-industry towns re an integral part of the national and regional economies. In many single-industry towns, the situation is tense due to high unemployment rates, bankruptcy of many town-forming enterprises, and poor economic diversification. Currently, in Russia there are 320 monotowns, where 10% of the country’s population live. These are large industrial centers and small settlements. Most of them are located in industrial regions. All-round support for single-industry towns is provided by a special fund, which is part of the VEB Group. For example, for investment projects, loans are provided at 0 % interest rate. The cost of projects was reduced 20 times. Therefore, small and medium-sized enterprises can become main recipients of funds. Under the new program, investors will be able to return tax payments from new enterprises.
Analysis of the wastewater treatment device for the damper tank of sewage pumping stations
Authors: Skibo D V , Kunitsyn A G , Chupin V R
Published: May 2021

The article presents a model range of an automated wastewater strainer developed on the basis of utility model “Device to perform primary wastewater treatment of suspended solids at sewage pumping stations”. The device is aimed at efficient mechanical treatment of domestic, storm and industrial effluents at sewage pumping stations and other objects of the water disposal system. The operating parameters of the device are designed based on the gradation of daily flow rates, volumetric solids content and operating conditions. The verification calculation of structural elements for strength and stiffness was carried out taking into account dynamic loads. The parameters of the actuators were determined the selection of gear motors was made.
Project financing as a tool to enhance the role of commercial banks in the construction industry
Authors: Antipin D A , Trufanova S V
Published: May 2021

For implementing any construction project, considerable financial resources are required. The world practice of construction sector investment can be described as follows: two-thirds of resources go through the bank project financing system; one-third of resources are own funds of companies. In the Russian Federation, either the population invests in construction, participating in equity construction projects or building individual houses or the budget and state corporations fund construction projects. Businesses also invest in construction projects. Sources of finance for Russian construction activities are not diverse. The availability of many sources is declining during the past few years. The process of construction sector financing is not systemic; it develops spontaneously without taking into account the strategic objectives of the national development. In such conditions, project financing becomes a very promising form of lending. The popularity of project financing as a method of long-term financing of capital-intensive industries is determined by the processes of partial abolition of state control over enterprises serving the infrastructure (housing and communal services, transport, communications), and privatization of the public sector. The article determines the importance of project financing as a tool to enhance the role of commercial banks in the construction industry in modern economic conditions. The current trends of development of project financing in the Russian construction sector are analyzed. The most significant problems of development of the construction sector in the Russian regions are identified. The trends in the development of the construction sector are identified taking into account the latest economic trends.
Housing classification as the basis for developing an economic strategy for developer
Authors: Dorofeeva V V , Kaverzina L A
Published: May 2021

There are 5 types of housing in this article which are consistent with generally accepted classification of residential real estate. It has been implemented a segmentation of the new buildings market by types of availability based on discriminant analysis. This type of the analysis is a statistical method, which allows to research differences between 2 or more object groups simultaneously on several variables and also gives an opportunity to classify objects according to the principle of maximum similarity. According to the samples, some rules have been obtained which later make it possible to determine the class of new objects. The discriminant functions and distribution graphs of objects by type of accessibility have been built, classification method has been graphically presented. Data base of 102 objects has been formed and 12 factors that characterize types of housing availability have been chosen. It has been determined that 5-element classification of objects is the basis for formation of market positions and development of economic strategy for developer in the housing market.
Author’s factor analysis of financial dependence of the Russian construction industry
Authors: Filatov E A
Published: May 2021

Construction is one of the fastest growing and developing business sectors. This is due to the fact that the construction market is almost always in high demand, which is growing every day. Especially profitable is construction in large cities, whose population is constantly increasing due to the influx of new residents from the regions seeking to earn money in large cities. Currently, the construction market in the Russian Federation has opposite trends. The first is the deterioration of the economic condition of citizens, which leads to a decrease in demand. The second is financial instability and fluctuations in the ruble exchange rate, as a result of which people try to save their earned money and invest it in real estate, and this, consequently, leads to an increase in demand for real estate. The article analyzes the model of financial dependence. The article describes 10 methods of factor analysis developed by Filatov E. A., which make it possible to draw an accessible and relatively simple conclusion about changes in the resultant indicator. The object of research of the article is the construction industry of the Russian Federation in the context of three main types of construction: construction of buildings; construction of engineering structures; specialized construction works.
Changes in household saving and borrowing behavior during the economic crisis
Authors: Kolmakov A E , Lokhtina T N , Kulesh M I
Published: May 2021

In the article the authors use the well-known model of “permanent income” to explain the behavior of Russian households in a situation of economic crisis. The authors challenge the widespread opinion in the Russian economic community that the Russian banking system’s recovery from the crisis caused by the coronavirus epidemic will be quite short and intensive. The almost thirty-year history of economic crises in Russia does not give rise to such optimism. The article provides evidence that during the past economic crises, Russians have always chosen the “savings” model of behaviour. The essence of this model is that at the first obvious symptom of the crisis, which is a reduction in current income (less often a loss of employment), households sharply reduce their current consumption. It is noteworthy that the savings behaviour pattern extends beyond the acute phase of the crisis. A high savings rate is maintained for a long time as the value of current household income has recovered. It is assumed that the savings model has become a stable behavior pattern as a result of the long (about 20 years) period of stagnation of the Russian economy at the turn of the 20th-21st centuries.
Closed-end mutual real estate funds as an investment management tool
Authors: Kuryshova I V , Timofeeva A A
Published: May 2021

The article deals with closed-end mutual real estate investment funds which can be used as a tool for attracting and managing financial resources of construction companies. The issues of formation of the Russian investment fund market are analyzed. The current trends and changes in the legislation on the construction industry and mutual investment funds are described. The specificity of raising funds through the real estate investment funds is revealed and factors that will affect individual projects in the real estate sector implemented through the use of closed-end real estate investment funds are determined.
Integral analysis of the model of financial dependence of the Russian construction industry
Authors: Matveeva M V , Filatov E A
Published: May 2021

In the context of the COVID-19 pandemic and other crisis phenomena, we can conclude that the construction industry in the Russian Federation is characterized by pessimistic sentiments regarding financial indicators for 2020. Under these conditions, the self-survival of the Russian construction industry is largely determined by the ability of specific construction companies to adapt to the changed economic environment, fully realize their internal reserves, and diversify production in search of new markets. This increases the role of analysis in assessing the production and commercial activities of the construction industry of the Russian Federation and, above all, in the availability, placement and use of their capital and income. The results of this analysis are necessary, first of all, for the owners (founders) of the construction company, its creditors and investors. The article analyzes the model of financial dependence. The object of research of the article is the construction industry of the Russian Federation in the context of three main types of construction: construction of buildings; construction of engineering structures; specialized construction works. The article describes one of the author’s methods of integral factor analysis, which allows you to assess the degree of influence of factors on changes in the resultant indicator in an accessible and relatively simple way.
The methodology for calculating lease payments for construction companies based on the parametric model
Authors: Nechaev A S , Romanova T V
Published: May 2021

The article analyzes problems of leasing planning in order to improve its efficiency. The technique of optimization of lease payments taking into account the reduction factor is described. An example of construction and implementation of the parametric model for optimizing the structure of lease payments is provided. The scheme of construction and implementation of the parametric model for optimizing the structure of lease payments is presented. The article presents a methodology for calculating lease payments based on the parametric model and using the reduction factor, which improves the efficiency of the process of updating fixed assets of construction organizations. The results of lease payment modeling are presented taking into account the payment dynamics. The article describes the dynamics of lease payments whose result is a decreasing function described by the exponential equation. To optimize lease payments, two models can be applied: the parametric model that takes into account the amount paid to the leasing company for the previous period, and the model based on the lease payment reduction coefficient.
Investment in construction in progress as a factor in the development of investment and construction activities
Authors: Nikishina O V
Published: May 2021

The problem of incomplete construction has always existed and remains relevant to this day. The article deals with the main problems in the field of realization of the investment potential of objects under construction. The author has developed recommendations that create attractive conditions for the introduction of objects of incomplete construction into economic circulation. The system of measures that can have an effective impact on increasing the investment attractiveness of the construction in progress sphere based on the coordination of the interests of stakeholders: the government, the population and business. Based on the analysis, the author developed a general scheme of stages of implementation of the strategy for the development of the investment process in the field of unfinished construction.
Evaluation of housing development balance in the Russian Federation regions
Authors: Ovsiannikova T Y , Rabtsevich O V , Yugova I V
Published: May 2021

The article is devoted to the analysis of the problem of balanced development of the housing sector in the regions of the Russian Federation. The relevance of the research is determined by heterogeneity of the socio-economic filed of the Russian Federation and necessity to ensure a balanced development of the housing sector in the country’s regions as the most essential condition for leveling-off the living standard of the population. The article studies the current condition and development of the housing sector in the Russian regions through a system of indicators that characterize dynamics of the housing investment market and the population’s housing conditions. The authors of the article propose an approach to assessment of territorial differentiation of regions’ housing development levels based on the use of statistical analysis methods. The developed approach involves determining the integral index of the current condition and development of the housing sector in regions by aggregating the values of individual indicators that characterize dynamics of the regional housing investment market and housing conditions of the region’s population. The approach proposed by the authors allows us to analyze the housing sector as a complex system, characterize dynamics of its development and expose its results. The article tested the developed approach: it assessed the current condition and level of development of the housing sector in 80 regions of the Russian Federation and analyzed the balance of its development.
Using of additive manufacturing (AM) in construction economics – shortcomings, advantages, prospects
Authors: Repinskiy O D , Romaneskul N B , Studenkova N A
Published: May 2021

The article considers the topic which is currently relevant for the construction industry – competitiveness growth of construction companies in the market by application of additive technologies. 3D technologies open up new ground for the construction industry as their application allows them to construct buildings of almost any shape, therefore, designers and architects will get more freedom to implement their creative plans and ideas. Upgrading of construction technologies will reduce quantity of waste and provide higher safety level on construction sites. Innovativeness of Additive Manufacturing (additive technologies) is based on application of special equipment - a 3D printer. Intensive development of Additive Manufacturing significantly changes ratio of economic factors in construction. The author believes that profitability of companies in a new competitive context will depend not on scale of production but on quality and originality of ideas. Philosophy of the economy after the third industrial revolution will base on development of original projects and not on products manufacturing.
Creation of favorable conditions for the economy of Irkutsk region in the housing and communal sector
Authors: Turkova V N , Arkhipova A N , Tyapkina M F
Published: May 2021

The role of housing and communal services is crucial, and it is increasing due to the development of information technologies and a “Smart city” concept. With an increase in the number of population, the consumption of energy and other global resources increases. It is necessary to improve the housing and communal services, create and develop the concept “Smart cities” in the Russian Federation. The government aims to create a National Consortium for the development and implementation of digital technologies in the field of urban economy. At the same time, the main task is professional self-realization of university graduates. Currently, intelligent production requires specialists to design innovative products and services and solve problems of innovative production, marketing, and information technologies.
Research on Single Damage Identification of Multi-span Bridge Based on Influence Line
Authors: Yunkai Zhang , Jianjun Guo , Guohua Li , Tingrui Chang , Yongqi Li
Published: May 2021

Bridges are an important part of traffic engineering. They play an irreplaceable role in developing national economy, promoting cultural exchanges and consolidating national defense. The structural safety of bridges is the primary prerequisite for their role. However, due to the influence of many factors such as material aging, external environmental corrosion, longterm load action and accidental impact, the bridge structure will be damaged to different degrees, and the bridge will be destroyed when the damage accumulates to a certain degree. Once the bridge is damaged, it will have a great negative impact on human life safety, property safety, and social stability. Therefore, studying the method of rapid and accurate identification of bridge structure damage has great theoretical significance and engineering value. Based on the current status and existing problems of existing bridge structure damage identification, this paper proposes a continuous beam bridge structure damage identification technology based on deflection influence lines. Firstly, using graph multiplication and other theories, the expression of influence line function on the deflection of multi-span continuous beam bridge is derived. The influence line function of continuous beam bridge without structural damage is derived from the theoretical level, and the graph is drawn. Through the formula of the deflection influence line of healthy structure, it can be confirmed that the deflection influence line obtained quickly under the visual tracking technology can identify the damage of the structure. We use software modeling to find the best identification parameters. Using MIDAS/Civil software can establish the model and simulate the deflection influence lines of different measuring points of continuous beam bridge structures with different positions and different degrees of damage under the action of moving loads. Taking the continuous beam bridge deflection influence line, the difference between the deflection influence line of the first derivative and the second derivative, the first derivative and the second derivative and other parameters as the research objects, we explore how to use the deflection influence line to identify damage. Finally, after the comparison of multiple working conditions and multiple measuring points, it is found that the damage identification effect of the first derivative of the deflection influence line difference is the best.
Evaluation and Analysis of Comprehensive Benefit of Ground Source Heat Pump in Cold Area
Authors: Yang Lu , Liu Xin , Gai Qun , Zuo Yuning
Published: May 2021

In recent years, with the vigorous implementation of the national measures to promote green building energy conservation, a series of regulations and norms concerning building energy conservation policies have been published. Solar energy, heat pump and other clean energy has also been widely used. According to summarize the influencing factors of the operation of the ground source heat pump system, the evaluation method of comprehensive benefit of the ground source heat pump system is proposed, and the evaluation system of various types of heat pump system is integrated through using the unified dimension. Analytic hierarchy process is used to study the evaluation method of the ground source heat pump. A scientific, rational and practical comprehensive benefit evaluation system of ground source heat pump is constructed. At the same time, the evaluation standard of 15 evaluation indexes and the grading standard of comprehensive benefit evaluation are established. The typical soil source heat pump project is selected for the evaluation and its comprehensive evaluation benefit grade is two-level. Based on the evaluation results, we can effectively analyze the areas that need to be optimized and improved, so as to improve the comprehensive benefit.
Study on Failure Mode of Transmission Tower under Ice Coating
Authors: Guo Huang , Maohua Li , Zhigang Su
Published: May 2021

In this article, the failure mechanism of the transmission tower under ice coating is analyzed, and then the failure mode of the transmission tower is studied by numerical simulation. The analysis of the ultimate bearing capacity of the transmission tower under uniform and uneven ice coating shows that the model with auxiliary materials has a higher bearing capacity than the model without auxiliary materials, and the actual bearing capacity of the structure should be between them. The load-bearing capacity of the structure under uneven icing is lower than the load-bearing capacity of the structure under uniform icing. The main material of the tower, the main material of the cross arm and the head of the tower are unfavorable and easy to be damaged.
Research on the Development Direction of Modern Urban Planning and Design under Smart City
Authors: Song Xueyou , Luo Lei , Su Mengbei
Published: May 2021

At this stage, the overall progress of China’s urbanization process is relatively rapid, and the construction of smart cities has also received great attention. Information technology has begun to be integrated into urban development, which makes urban construction move in a new direction. In the information age, a variety of advanced technologies have brought rich elements of the times to the development of cities. This not only greatly alleviates the urban diseases highlighted by modern cities, but also speeds up the pace of urban planning and development, making planning and design solutions extremely feasible, and demonstrating the reference value of informatization to urban planning. Under the concept of smart city, how to realize scientific and reasonable modern urban planning and design is a problem that needs to be further explored. Enterprises should make the overall direction of planning and design clear and effective, and build a benign and healthy city construction based on actual conditions, keeping up with the trend of the times.
Application of BIM Technology in Road Engineering Design
Authors: Zhang Lingmei
Published: May 2021

This article analyzes the basic concepts, basic characteristics, and commonly used software of BIM technology. The author studied the specific application of BIM technology in geological data collection, design scheme comparison and selection, design modeling, engineering quantity and cost calculation, design drawing output, collaborative content design, urban landscape design, construction simulation design, and comprehensive pipeline design. The purpose of this article is to improve the rationality of road engineering design schemes and prolong the service life of road engineering.
Study on the Workshop Design Strategies of South China Educational History Research Base (Pingshi)
Authors: Shi Ying , Shi Nuo , Pan Ying
Published: May 2021

Based on the policies and rural revitalization strategies launched by government, this paper studied the relevant cultural background of Lechang town of Shaoguan area from three aspects of history, folk custom and food, taking the South China Educational History Research Base (Pingshi) as an example. On account of these historical and cultural information, it provides a basis for the spatial organization in workshop mode and the functional space design in historical scene restoration. And further study the actualities and problems, which the workshop mode faced in how to combine the learning theme, architectural design and other aspects with history, regional culture, education. Finally, it summarizes the space design strategies of workshop mode of Pingshi Old Street through practical experience, which provides reference for the renovation design of research and study base under the educational history background.
Research on Thermal Comfort of the Expressway Service Area in Qinling Mountains
Authors: Fei Han , Bo Xia , Jingyuan Zhao , Shijing Zhao
Published: May 2021

In order to understand the current indoor thermal environment of the expressway service area in Qinling Mountains, field measurements were conducted by using the Relative Warmth Index (RWI) and questionnaires were dished out, whereby their thermal environments were evaluated comprehensively. It turns out that the thermal neutral temperature of expressway service area in Qinling Mountains of China is 25.02°C(SET*). The thermal acceptable range of 22.39-28.36 °C(SET*) and the thermal comfortable range of 24.60-27.60 °C(SET*) are derived from 80% of the acceptable and comfortable criteria.
Research on Planning and Design of Plant Landscape for Outdoor Exhibition of Modern Architecture
Authors: Qin ZiKang
Published: May 2021

In order to increase the development and progress of greening environment, improve people’s living environment, and promote urban construction and development in the design process of outdoor exhibition plant landscape in modern buildings. This paper takes a modern architecture outdoor exhibition plant landscape design as an example. First of all, this paper expounds the principles and characteristics of outdoor exhibition landscape design of modern architecture, and then analyzes the design of outdoor landscape of a modern architecture for reference of relevant personnel.
Ecological Vulnerability Evaluation Model of Sichuan-Tibet Railway Based on Fuzzy Matter-element Analysis
Authors: Bao Fang , Qiu Jian
Published: May 2021

In order to identify the ecological conditions of Sichuan-Tibet Railway, based on the vulnerability evaluation framework of “exposure-sensitivity-adaptation”, this paper selects 20 evaluation indexes including temperature, precipitation, snowfall, herb coverage, total number of plant species, population density and per capita GDP, and establishes a multi-element and multi-attribute comprehensive evaluation system. The comprehensive evaluation system is divided into eight basic judgment indexes, and the weight is determined based on the fuzzy matter-element analysis method. The basic judgment index scores are obtained through cluster analysis, and the ecological vulnerability evaluation model is established. It is expected to provide theoretical reference for the construction of Sichuan-Tibet Railway in ecologically fragile areas to protect and improve the ecological environment.
Research on the influence of machine-made sand gradation and fineness modulus on the workability and rheological properties of mortar
Authors: Chen Can , Yang Haicheng , Fan Zhihong
Published: May 2021

The gradation and fineness modulus of machine-made sand are important factors affecting the performance of mortar. By studying the influence of different machine-made sand gradation and fineness modulus on the workability and rheological properties of mortar, the gradation and fineness of machine-made sand are explored. The relationship between modulus and mortar fluidity, yield stress and plastic viscosity. Research shows that with the increase of the cumulative screening rate and fineness modulus of machine-made sand with different gradations, the fluidity of the mortar increases and the workability of the mortar increases. The cumulative screening rate and fineness modulus of machine-made sand are negatively correlated with the yield stress and plastic viscosity of the mortar. The cumulative screening rate and fineness modulus of machine-made sand have a good correlation with the yield stress of the mortar, and the mechanism is 1.18-0.6mm Sand gradation is significantly negatively correlated with the yield stress of mortar, and the cumulative sieving rate and fineness modulus of machine-made sand have poor correlation with the plastic viscosity of mortar.
The Research of Highway Construction Project Information Comprehensive Management System
Authors: Cai Hualong , Zhu Chengyu , Ouyang Ming , Peng Chen
Published: May 2021

With the development strategy of “Internet + Transportation’' put forward, the paper advances the process of the new type of transportation construction in the province. Compared with the common highway, the freeway design speed is higher, vehicle capacity is larger, so the quality is more strict during the construction process. This system helps highway construction managers to understand the construction of the project at the first time, and effectively deal with emergencies. Based on the actual situation of the project, this paper expounds the information management system and its functions of expressway construction project.
Analysis of Key Points in Safety Supervision and Management of Construction Site
Authors: Peng Rulun , Zhang Min , Liu Tianyi
Published: May 2021

Construction projects must be carried out efficiently while ensuring the safety of the construction site. The safety management of the construction site is the key to the advancement of construction projects and is a manifestation of the good development of the construction engineering industry. Therefore, the construction unit must reasonably control the safety supervision of the construction site. At present, the government and other relevant departments also attach importance to the rights and interests of migrant workers at construction sites. The construction industry needs to take relevant measures to explore safety management measures at construction sites in terms of factors affecting construction safety and legal regulations. This can provide a construction foundation for the smooth implementation of building construction.
Station Pipes Inspection Method And Application Based On Damage Modes
Authors: Hai-zhou Lv , Ming Sun , Yu-bin Xu , Yun Wu , Long-long Sun
Published: May 2021

Station pipes are important part of the oil and gas delivery system. At present, there are no targeted internal pipeline inspection standards for station pipes. So we can’t inspect the station pipes effectively. According to the characteristics of station pipes, this paper introduce the typical damage modes of station pipes, analyze the applicability of common corrosion inspection technology, weld inspection technology, stress corrosion fatigue inspection technology and fatigue damage inspection technology in the inspection of station pipes, propose an inspection method for the station pipes. The field application shows that this inspection method can inspect station pipes effectively, but due to the particularity of station pipes, the method still has some limitations and shortcomings.
Field measurement research of wind pressure inside ribbed cooling tower
Authors: Sun Xiao-yong , Yuan Zi-hou , Yuan Yi-chen
Published: May 2021

Due to the limitation of engineering conditions and meteorological conditions, the on-site measured data inside the cooling tower is relatively lacking. Field test data for ribbed cooling towers is even less. In order to provide a scientific wind load basis for engineering design, we choose a bibbed cooling tower for field measurement in Toksun County, Xinjiang, which is windy all the year round, so as to understand the inner wind load characteristics of the cooling tower under the prevailing wind direction and the maximum wind speed direction. It is found that the average wind pressure coefficient measured in the field is not completely consistent with the wind pressure coefficient in the Code.
Renovation of evacuation facilities in case of leakage of high-temperature molten metal
Authors: Zhang Yongming , Yang Tan , Zhang Qixing , Chen Bing
Published: May 2021

In this paper, the renovation design of the evacuation facility in the high-temperature molten aluminum casting workshop was designed by the research team of the State Key Laboratory of Fire Science, University of Science and Technology of China to deal with the impact of high-temperature molten metal leakage and diffusion accidents. The field experiment results show that the evacuation path of the mixed furnace eye worker and the crane driver is severely blocked. In response to this problem, the evacuation escalator and evacuation slide were respectively designed during the renovation, and the evacuation path after the renovation was re-planned. According to the numerical simulation results, the new evacuation system has made great progress, and the efficiency of evacuation of people has been significantly improved. The current research provides a model for the reconstruction of the personnel evacuation system in the existing metallurgical workshop accident scene, which has great practical value for ensuring the safety of high-temperature molten metal operations.
Research Progress on Dynamic Stability of Layered Rock Slope
Authors: Li Yang , He Chunmei
Published: May 2021

The analysis of failure mechanism and stability of rock slope under seismic load has become an important research content in geotechnical engineering, and the layered structure is the most common among the rock masses composing the slope. In this paper, the layered rock slope is divided into three types, i.e., horizontal, bedding and anti-dipping, according to the dip angle of rock layer in the layered slope. The influence factors, failure modes and dynamic stability of the three kinds of slope under seismic action are systematically summarized and reviewed in detail, and the problems to be studied and the possible research approaches are pointed out in the light of the current research methods.
Microwave surface transport in narrow-bandgap

PdSe2

-MOSFETs
Authors: Le Goff R , Rosticher M , Peng Y , Liu Z , Taniguchi T , Watanabe K , Berroir J-M , Bocquillon E , Fève G , Voisin C , Chazelas J , Plaçais B , Baudin E
Published: May 2021

Group-10 transition-metal dichalcogenides are puckered van der Waals semiconductors, with a narrow bandgap, envisioned for ultra-broadband infrared (IR) detection. To assess their dynamical transport properties we investigate

P
d
S
e

2

n-MOSFETs by using microwave admittance spectroscopy. We report on surface channel inversion-depletion-accumulation behaviors with a depletion length of

15

n
m

, a mobility of

110

c
m

2

 

V

−
1

 

s

−
1

, and a bulk bandgap of

0.15

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Optothermal Raman measurement determined thermal conductivity characteristics in NiMn2O4 films grown by chemical solution deposition
Authors: Xu Decai , Sang Yuxiang , Chu Yuanyuan , Yu Yin , Liu Fang , Hou Yun , Wang Xingjun
Published: May 2021

NiMn2O4 (NMO) thin films with different thicknesses (0.47–1.90 μm) were grown on Yttria-stabilized zirconia (YSZ)(100) substrates by chemical solution deposition (CSD). The effects of different growth conditions on the structural and thermal properties of NMO films were investigated. X-ray diffraction (XRD) and atomic force microscopy (AFM) measurements show that both the average grain size of the samples and the surface roughness become larger with an increase of thickness. Based on isothermal surface condition, the corresponding thermal conductivity of NMO films was extracted from the optothermal Raman measurement and the obtained thermal conductivity is ∼4.0 ± 0.8 W m−1 K−1 for micrometer-scale films, suggesting that the (grain) boundary phonon scattering plays a minor role to affect the thermal conductivity of thin NMO films.
Decision-making framework for an acute care clinical pharmacist productivity model: Part 1
Authors: Vest Tyler A , Simmons Adrienne , Morbitzer Kathryn A , McLaughlin Jacqueline E , Cicci Jonathan , Clarke Megan , Valgus John M , Falato Chris , Waldron Kayla M
Published: May 2021

Purpose

Clinical pharmacist productivity assessment has long been challenging, as a standard definition does not exist. A multistep project was undertaken with the intent to develop, validate, and implement an acute care clinical pharmacist productivity model. The initial step of the project was designed to identify, define, prioritize, and weight a comprehensive list of daily pharmacist responsibilities stratified by relative time spent on each function via consensus.

Methods

Delphi methodology applied by a panel of experts was used to identify a comprehensive list of acute care pharmacist responsibilities ranked in order of time intensity. Twenty-three acute care clinical pharmacists participated in the process. The consensus list was validated by time observation studies. Each responsibility was assigned a weight and corresponding work outputs by a consensus panel. Weighting of each responsibility was assigned according to the relative time intensity and complexity of each task.

Results

The results of the Delphi consensus process included the top 20 time-intensive responsibilities identified by the acute care clinical pharmacists. Timed observations of acute care clinical pharmacists yielded results similar to those of the consensus process. Selection of corresponding work outputs and weights for each responsibility provided the final requirements for the productivity model.

Conclusion

The development of an acute care clinical pharmacist productivity model first requires the selection of appropriate work outputs and weighting. The consensus process provided a newly identified comprehensive list of pharmacist responsibilities that will serve as the foundation of the clinical productivity model. Validated consensus methodology can be useful for engaging clinical pharmacists in decision-making and the development of a clinical productivity model.
VI—Paradoxes as Philosophical Method and Their Zenonian Origins
Authors: Sattler Barbara M
Published: May 2021

In this paper I show that one of the most fruitful ways of employing paradoxes has been as a philosophical method that forces us to reconsider basic assumptions. After a brief discussion of recent understandings of the notion of paradoxes, I show that Zeno of Elea was the inventor of paradoxes in this sense, against the background of Heraclitus’ and Parmenides’ way of argumentation: in contrast to Heraclitus, Zeno’s paradoxes do not ask us to embrace a paradoxical reality; and in contrast to Parmenides, Zeno shows common assumptions to be internally problematic, not just in light of Eleatic positions.