As a cultural concept refl ecting the relationship between humans and forests,forest culture plays an active role in sustainable forest management.Forest parks provide a wide range of ecosystem services essential for ...As a cultural concept refl ecting the relationship between humans and forests,forest culture plays an active role in sustainable forest management.Forest parks provide a wide range of ecosystem services essential for the sustainable development of society,and the relationships between forest culture,green construction and management of forest parks have practical signifi cance.This study aimed to understand the interaction and process of forest culture infl uencing green construction and management in forest parks with the models Knowledge-Attitude-Practice(KAP)and Theory of Planned Behavior(TPB)by proposing a theoretical model.Four hypotheses were tested using data collected from 193 forest park employees in Heilongjiang Province,China.Our results show that forest culture had a signifi cant infl uence on green construction and forest management.In addition,subjective norm and perceived behavioral control directly impacted behavior in green construction and management of the forest park,whereas attitude did not have an impact.Subjective norm had a direct eff ect on attitude.Results between constructs show that forest culture had an indirect eff ect on planning and construction,and on ecological and economic management.Consequently,it supported three of four hypotheses within the proposed model in determining the infl uence of forest culture on green construction and management.展开更多
Internet buzzwords,as distinct forms of language,consist of short sentences yet carry rich meanings and spread rapidly.To better study this intriguing and unique linguistic phenomenon,this paper employed conceptual in...Internet buzzwords,as distinct forms of language,consist of short sentences yet carry rich meanings and spread rapidly.To better study this intriguing and unique linguistic phenomenon,this paper employed conceptual integration theory for its powerful explanatory capabilities to analyze the origins,composition,and emergence of meanings of internet buzzwords over the past four years.These 40 internet buzzwords can be categorized into five types:semantic derivation,generalization,abbreviation,metonymy,and compounding.Furthermore,this paper conducted cognitive analysis from different conceptual integration network perspectives,elucidating specific cognitive operations involved in the construction of meanings and revealing the emergence process of layered meanings in recent internet buzzwords over the past four years.展开更多
Under the background of stereotyped urban planning and construction and the pursuit of high land value,it is particularly important to explore the application of urban environmental characteristics in urban design and...Under the background of stereotyped urban planning and construction and the pursuit of high land value,it is particularly important to explore the application of urban environmental characteristics in urban design and highlight the integration of local characteristics and people’s life.In this paper,based on the origin of Fengshui theory and the planning points of an ideal Fengshui pattern,the planning and design of Shengming Kangyuan Area in Liyang were studied to explore the positive influence of Fengshui theory in the construction of urban space,and some planning suggestions were put forward to improve the urban environment and achieve harmony and unity between man and the natural environment.展开更多
OBE theory focuses on students’learning outcomes and application ability,which is consistent with the requirements of the new curriculum standard.The paper attempts to apply OBE theory to innovate the construction of...OBE theory focuses on students’learning outcomes and application ability,which is consistent with the requirements of the new curriculum standard.The paper attempts to apply OBE theory to innovate the construction of English classroom teaching mode in senior high schools from aspects of teaching aims,teaching activities,teaching assessments and application activities.Results show that the application of OBE in high schools is beneficial to the development of English teaching and students'learning.展开更多
In the construction of a soft rock tunnel,it is critical to accurately estimate the pre-stressed anchor support parameters for surrounding rock reinforcement;otherwise,engineering disasters may occur.This paper presen...In the construction of a soft rock tunnel,it is critical to accurately estimate the pre-stressed anchor support parameters for surrounding rock reinforcement;otherwise,engineering disasters may occur.This paper presents a support parameter selection method that aims to allow deformation as a control objective,which was applied to the tunnel located in Muzailing Highway,Min County,Dingxi City,Gansu Province,China.Through theoretical analysis,we have identified five factors that influence pre-stressing anchorages.The selection of mechanical parameters for the rock mass was carried out using an inverse analysis method.Compared with the measured data,the maximum displacement error of the numerical simulation results was only 0.07 m.The length of anchor cable,circumferential spacing of anchor cable,longitudinal spacing,and pre-stress index are adopted as the input parameters for the support vector machine neural network model based on particle swarm optimization(PSO-LSSVM).Besides,the vault subsidence and the maximum deformation of surrounding rock are considered as output values(performance indices).The goodness of fit between the predicted values and the simulated values exceeds 0.9.Finally,all support parameters within the acceptable deformation range are calculated.The optimal support variables are derived by considering the construction cost and duration.The field application results show that it is feasible to construct the sample database utilizing the numerical simulation approach by taking the displacement as the control target and using the neural network to specify the appropriate support parameters.展开更多
We establish the construction theory of function based upon a local field Kp as underlying space. By virture of the concept of pseudo-differential operator, we introduce "fractal calculus" (or, p-type calculus, or,...We establish the construction theory of function based upon a local field Kp as underlying space. By virture of the concept of pseudo-differential operator, we introduce "fractal calculus" (or, p-type calculus, or, Gibbs-Butzer calculus). Then, show the Jackson direct approximation theorems, Bermstein inverse approximation theorems and the equivalent approximation theorems for compact group D(C Kp) and locally compact group Kp^+-(= Kp), so that the foundation of construction theory of function on local fields is established. Moreover, the Jackson type, Bernstein type, and equivalent approximation theorems on the HOlder-type space C^σ(Kp), σ 〉0, are proved; then the equivalent approximation theorem on Sobolev-type space Wr(Kp), σ≥0, 1≤r 〈∞, is shown.展开更多
Geometric model construction is the basis of infrared image theory simulation. Taking the construction of the geometric model of one building in Harbin as an example, this paper analyzes the theoretical groundings of ...Geometric model construction is the basis of infrared image theory simulation. Taking the construction of the geometric model of one building in Harbin as an example, this paper analyzes the theoretical groundings of simplification and principles of geometric model construction of buildings. It then discusses some particular treatment methods in calculating the radiation transfer coefficient in geometric model construction using the Monte Carlo Method.展开更多
To make full use of Chinese natural heritage resources and achieve their sustainable development, it is imperative and necessary to construct Chinese National Park System. Based on the theory of sustainable developmen...To make full use of Chinese natural heritage resources and achieve their sustainable development, it is imperative and necessary to construct Chinese National Park System. Based on the theory of sustainable development and the connotation of national park, this paper will discuss the signifi cance of establishing Chinese National Park System and then propose some measures. Chinese National Park System can be constructed from four levels, including policy, management, economic and social levels, and through such ways as reconstructing the national conservation system, making laws and regulations, establishing planning system, setting up independent and specialized regulatory agency, adopting way of franchising, innovating funding investment mechanisms and establishing mechanisms of public participation.展开更多
Based on the theory that the management is about dynamic "relations", this paper analyzes the relationship between the construction industry and the "peasant laborer" in different stages, different contents and di...Based on the theory that the management is about dynamic "relations", this paper analyzes the relationship between the construction industry and the "peasant laborer" in different stages, different contents and different aspects. It establishes the three-dimensional model for these relations and points out that a good relationship between the construction enterprise and the construction employees in this crucial time of construction industry is a very crucial link of the achievements, as well as the well-being of the construction enterprises.展开更多
Construction of forestry socialized service systems is the important content for reform of collective forestry tenure systems.Based on the necessity,possibility and problem of construction of forestry socialized servi...Construction of forestry socialized service systems is the important content for reform of collective forestry tenure systems.Based on the necessity,possibility and problem of construction of forestry socialized service system,according to Barnard's Organizational Structure theory,the path and countermeasure of forestry socialized service system in China are discussed.展开更多
A small English class can be called as a micro-environment for English study. In this small micro-environment, the relationship between teachers and students is subtle. How to achieve the good interaction and create a...A small English class can be called as a micro-environment for English study. In this small micro-environment, the relationship between teachers and students is subtle. How to achieve the good interaction and create a good micro-environment in English class between teachers and students is very important for developing students' learning ability. This thesis is based on Rogers' humanistic teaching theory, which uses questionnaires, inteview and comparative analysis to analyze the current situation of micro-environment in college English learning. It discusses the construction of micro-environment in college English learning based on Rogers' humanistic teaching theory and the ways to construct it from software conditions (roles of teachers and students, relationship between teachers and students, the classroom atmosphere) and hardware conditions(teaching resources, a classroom).展开更多
This paper conducts research on the construction of English classroom in colleges based on interactive teaching and multiple intelligence theory. At present, our country’s English teaching present situation is too cr...This paper conducts research on the construction of English classroom in colleges based on interactive teaching and multiple intelligence theory. At present, our country’s English teaching present situation is too crosses on the attention written English the study, but that in the practical application true important heard ability the practice or was actually the time which recited for has taken by the massive practices, enabled the student very good to exercise own hears ability. Teaching interaction refers to the course of teaching, teachers’ teaching and students’ learning interaction, interaction, mutual restraint, mutual promotion, to achieve the teaching objectives of teaching and the learning. Under this basis, this paper proposes the multiple intelligence theory based method for the further optimization of the English education pattern that is meaningful.展开更多
Warehouse management, as a higher vocational course integrating theory and practice, is of extreme importance to training the professional personnel logistics management. In this paper, under the premise of the teachi...Warehouse management, as a higher vocational course integrating theory and practice, is of extreme importance to training the professional personnel logistics management. In this paper, under the premise of the teaching objective of course Warehouse Management, and based on analyzing the disadvantages in the current teaching of the course, the teaching mode integrating theory and practice courses, and teaching and learning is discussed, so this paper is of great significance to the design of the course teaching modes in higher vocational colleges.展开更多
The discourse construction of ideological and political education in colleges and universities is an important task to strengthen the leadership and discourse power of ideological work in colleges and universities.The...The discourse construction of ideological and political education in colleges and universities is an important task to strengthen the leadership and discourse power of ideological work in colleges and universities.The relevant theories of western multidisciplinary discourse research provide rich theoretical reference for the discourse construction of ideological and political education in colleges and universities.Based on linguistics,sociology,political science,philosophy and other disciplines,ideological and political education in colleges and universities should reasonably absorb its theoretical achievements on the sociality,power,democracy and authenticity of discourse,providing theoretical and practical references for the construction of ideological and political education discourse in colleges and universities in terms of content,power,expression and value.展开更多
Discipline culture is the commander and soul of discipline construction. Marxist Theory discipline shouldering the responsibility of socialist ideological and cultural construction as well as the ideological and polit...Discipline culture is the commander and soul of discipline construction. Marxist Theory discipline shouldering the responsibility of socialist ideological and cultural construction as well as the ideological and political education has made great progress due to the attention of relevant departments,but there is still lack of discipline consciousness and problem consciousness.In this paper,the author puts forward the ways to strengthen the construction of discipline culture, and then promote the discipline construction of Marxist Theory.展开更多
At the present stage of development,colleges and universities in the training of students and management of student team construction there are some problems,although many colleges and universities to take the corresp...At the present stage of development,colleges and universities in the training of students and management of student team construction there are some problems,although many colleges and universities to take the corresponding management plan,effectively improve the quality of students,but educators still need to face how to cultivate a mature student team in a short time.In this regard,combining Dewey’s“experiential learning”and Cooper’s experiential learning theory,the paper applies experiential learning theory and practice to the training of college student team construction,aiming at improving the overall quality of the student team effectively,so as to promote the comprehensive development of students.展开更多
Shamir proposed a classic polynomial-based secret sharing(SS)scheme,which is also widely applied in secret image sharing(SIS).However,the following researchers paid more attention to the development of properties,such...Shamir proposed a classic polynomial-based secret sharing(SS)scheme,which is also widely applied in secret image sharing(SIS).However,the following researchers paid more attention to the development of properties,such as lossless recovery,rather than the principle of Shamir’s polynomial-based SS scheme.In this paper,we introduce matrix theory to analyze Shamir’s polynomial-based scheme as well as propose a general(k,n)threshold SIS construction based on matrix theory.Besides,it is proved that Shamir’s polynomial-based SS scheme is a special case of our construction method.Both experimental results and analyses are given to demonstrate the effectiveness of the proposed construction method.展开更多
“Cantonese Cuisine Master”project is an important policy proposed by China to inherit Cantonese Cuisine culture,promote employment,and achieve targeted poverty reduction and rural revitalization.Confronted with the ...“Cantonese Cuisine Master”project is an important policy proposed by China to inherit Cantonese Cuisine culture,promote employment,and achieve targeted poverty reduction and rural revitalization.Confronted with the demands of more diverse education,it is an essential opportunity and task for the education system to consider how to construct high-quality online courses and pursue higher-quality“Cantonese Cuisine Master”projects in line with the new era.This paper,based on the theory of instructional media and information processing theory,will further clarify the demand,dilemma,and developing strategy of online course construction for culinary majors,and explore its construction and practice with the example of“A Bite of Teochew Cuisine,”a Guangdong first-class course.展开更多
Western urbanization theory has crucial influence on the course of China' s urban and rural construction.Social economy and the scientific distribution of population are the key of the layout of urban and rural co...Western urbanization theory has crucial influence on the course of China' s urban and rural construction.Social economy and the scientific distribution of population are the key of the layout of urban and rural construction and an important factor in facilitating the innovative development of urban and rural construction.The continuous improvement of the environment of social resources as well as the quality of life is the focus of China' s urban and rural construction.As western urbanization theory just probes into this specific issue,it offers referential value in urging us to take the path of sustainable development in urban and rural construction.展开更多
基金supported by the Natural Science Foundation of China(Grants No.71673136).
文摘As a cultural concept refl ecting the relationship between humans and forests,forest culture plays an active role in sustainable forest management.Forest parks provide a wide range of ecosystem services essential for the sustainable development of society,and the relationships between forest culture,green construction and management of forest parks have practical signifi cance.This study aimed to understand the interaction and process of forest culture infl uencing green construction and management in forest parks with the models Knowledge-Attitude-Practice(KAP)and Theory of Planned Behavior(TPB)by proposing a theoretical model.Four hypotheses were tested using data collected from 193 forest park employees in Heilongjiang Province,China.Our results show that forest culture had a signifi cant infl uence on green construction and forest management.In addition,subjective norm and perceived behavioral control directly impacted behavior in green construction and management of the forest park,whereas attitude did not have an impact.Subjective norm had a direct eff ect on attitude.Results between constructs show that forest culture had an indirect eff ect on planning and construction,and on ecological and economic management.Consequently,it supported three of four hypotheses within the proposed model in determining the infl uence of forest culture on green construction and management.
文摘Internet buzzwords,as distinct forms of language,consist of short sentences yet carry rich meanings and spread rapidly.To better study this intriguing and unique linguistic phenomenon,this paper employed conceptual integration theory for its powerful explanatory capabilities to analyze the origins,composition,and emergence of meanings of internet buzzwords over the past four years.These 40 internet buzzwords can be categorized into five types:semantic derivation,generalization,abbreviation,metonymy,and compounding.Furthermore,this paper conducted cognitive analysis from different conceptual integration network perspectives,elucidating specific cognitive operations involved in the construction of meanings and revealing the emergence process of layered meanings in recent internet buzzwords over the past four years.
文摘Under the background of stereotyped urban planning and construction and the pursuit of high land value,it is particularly important to explore the application of urban environmental characteristics in urban design and highlight the integration of local characteristics and people’s life.In this paper,based on the origin of Fengshui theory and the planning points of an ideal Fengshui pattern,the planning and design of Shengming Kangyuan Area in Liyang were studied to explore the positive influence of Fengshui theory in the construction of urban space,and some planning suggestions were put forward to improve the urban environment and achieve harmony and unity between man and the natural environment.
文摘OBE theory focuses on students’learning outcomes and application ability,which is consistent with the requirements of the new curriculum standard.The paper attempts to apply OBE theory to innovate the construction of English classroom teaching mode in senior high schools from aspects of teaching aims,teaching activities,teaching assessments and application activities.Results show that the application of OBE in high schools is beneficial to the development of English teaching and students'learning.
基金supported by the Open Fund of State Key Laboratory of High speed Railway Track Technology(2022YJ127-1)National Natural Science Foundation of China(52104125,41941018)+1 种基金the Natural Science Basic Research Plan in Shaanxi Province of China(2022JQ-304)the Young Elite Scientists Sponsorship Program by CAST(No.2021QNRC001)。
文摘In the construction of a soft rock tunnel,it is critical to accurately estimate the pre-stressed anchor support parameters for surrounding rock reinforcement;otherwise,engineering disasters may occur.This paper presents a support parameter selection method that aims to allow deformation as a control objective,which was applied to the tunnel located in Muzailing Highway,Min County,Dingxi City,Gansu Province,China.Through theoretical analysis,we have identified five factors that influence pre-stressing anchorages.The selection of mechanical parameters for the rock mass was carried out using an inverse analysis method.Compared with the measured data,the maximum displacement error of the numerical simulation results was only 0.07 m.The length of anchor cable,circumferential spacing of anchor cable,longitudinal spacing,and pre-stress index are adopted as the input parameters for the support vector machine neural network model based on particle swarm optimization(PSO-LSSVM).Besides,the vault subsidence and the maximum deformation of surrounding rock are considered as output values(performance indices).The goodness of fit between the predicted values and the simulated values exceeds 0.9.Finally,all support parameters within the acceptable deformation range are calculated.The optimal support variables are derived by considering the construction cost and duration.The field application results show that it is feasible to construct the sample database utilizing the numerical simulation approach by taking the displacement as the control target and using the neural network to specify the appropriate support parameters.
文摘We establish the construction theory of function based upon a local field Kp as underlying space. By virture of the concept of pseudo-differential operator, we introduce "fractal calculus" (or, p-type calculus, or, Gibbs-Butzer calculus). Then, show the Jackson direct approximation theorems, Bermstein inverse approximation theorems and the equivalent approximation theorems for compact group D(C Kp) and locally compact group Kp^+-(= Kp), so that the foundation of construction theory of function on local fields is established. Moreover, the Jackson type, Bernstein type, and equivalent approximation theorems on the HOlder-type space C^σ(Kp), σ 〉0, are proved; then the equivalent approximation theorem on Sobolev-type space Wr(Kp), σ≥0, 1≤r 〈∞, is shown.
文摘Geometric model construction is the basis of infrared image theory simulation. Taking the construction of the geometric model of one building in Harbin as an example, this paper analyzes the theoretical groundings of simplification and principles of geometric model construction of buildings. It then discusses some particular treatment methods in calculating the radiation transfer coefficient in geometric model construction using the Monte Carlo Method.
基金Sponsored by National Social Science Fund(14CGL020)
文摘To make full use of Chinese natural heritage resources and achieve their sustainable development, it is imperative and necessary to construct Chinese National Park System. Based on the theory of sustainable development and the connotation of national park, this paper will discuss the signifi cance of establishing Chinese National Park System and then propose some measures. Chinese National Park System can be constructed from four levels, including policy, management, economic and social levels, and through such ways as reconstructing the national conservation system, making laws and regulations, establishing planning system, setting up independent and specialized regulatory agency, adopting way of franchising, innovating funding investment mechanisms and establishing mechanisms of public participation.
文摘Based on the theory that the management is about dynamic "relations", this paper analyzes the relationship between the construction industry and the "peasant laborer" in different stages, different contents and different aspects. It establishes the three-dimensional model for these relations and points out that a good relationship between the construction enterprise and the construction employees in this crucial time of construction industry is a very crucial link of the achievements, as well as the well-being of the construction enterprises.
文摘Construction of forestry socialized service systems is the important content for reform of collective forestry tenure systems.Based on the necessity,possibility and problem of construction of forestry socialized service system,according to Barnard's Organizational Structure theory,the path and countermeasure of forestry socialized service system in China are discussed.
文摘A small English class can be called as a micro-environment for English study. In this small micro-environment, the relationship between teachers and students is subtle. How to achieve the good interaction and create a good micro-environment in English class between teachers and students is very important for developing students' learning ability. This thesis is based on Rogers' humanistic teaching theory, which uses questionnaires, inteview and comparative analysis to analyze the current situation of micro-environment in college English learning. It discusses the construction of micro-environment in college English learning based on Rogers' humanistic teaching theory and the ways to construct it from software conditions (roles of teachers and students, relationship between teachers and students, the classroom atmosphere) and hardware conditions(teaching resources, a classroom).
文摘This paper conducts research on the construction of English classroom in colleges based on interactive teaching and multiple intelligence theory. At present, our country’s English teaching present situation is too crosses on the attention written English the study, but that in the practical application true important heard ability the practice or was actually the time which recited for has taken by the massive practices, enabled the student very good to exercise own hears ability. Teaching interaction refers to the course of teaching, teachers’ teaching and students’ learning interaction, interaction, mutual restraint, mutual promotion, to achieve the teaching objectives of teaching and the learning. Under this basis, this paper proposes the multiple intelligence theory based method for the further optimization of the English education pattern that is meaningful.
文摘Warehouse management, as a higher vocational course integrating theory and practice, is of extreme importance to training the professional personnel logistics management. In this paper, under the premise of the teaching objective of course Warehouse Management, and based on analyzing the disadvantages in the current teaching of the course, the teaching mode integrating theory and practice courses, and teaching and learning is discussed, so this paper is of great significance to the design of the course teaching modes in higher vocational colleges.
基金This paper is the 2020 Key Research Base Project of Philosophy and Social Sciences of Shaanxi Provincial Education Department,“Educational Research on Strengthening College Students’Mainstream Ideological Identity under Cyberspace Governance”(No:20JZ068)the key research project of Xi’an University of Technology’s education and teaching reform,“Research and Practice of Curriculum Ideological and Political Teaching Reform under the Guidance of Party Building”(No.XJY1911).
文摘The discourse construction of ideological and political education in colleges and universities is an important task to strengthen the leadership and discourse power of ideological work in colleges and universities.The relevant theories of western multidisciplinary discourse research provide rich theoretical reference for the discourse construction of ideological and political education in colleges and universities.Based on linguistics,sociology,political science,philosophy and other disciplines,ideological and political education in colleges and universities should reasonably absorb its theoretical achievements on the sociality,power,democracy and authenticity of discourse,providing theoretical and practical references for the construction of ideological and political education discourse in colleges and universities in terms of content,power,expression and value.
基金result of the project supported by the Double Support Program of Sichuan Agricultural University
文摘Discipline culture is the commander and soul of discipline construction. Marxist Theory discipline shouldering the responsibility of socialist ideological and cultural construction as well as the ideological and political education has made great progress due to the attention of relevant departments,but there is still lack of discipline consciousness and problem consciousness.In this paper,the author puts forward the ways to strengthen the construction of discipline culture, and then promote the discipline construction of Marxist Theory.
文摘At the present stage of development,colleges and universities in the training of students and management of student team construction there are some problems,although many colleges and universities to take the corresponding management plan,effectively improve the quality of students,but educators still need to face how to cultivate a mature student team in a short time.In this regard,combining Dewey’s“experiential learning”and Cooper’s experiential learning theory,the paper applies experiential learning theory and practice to the training of college student team construction,aiming at improving the overall quality of the student team effectively,so as to promote the comprehensive development of students.
文摘Shamir proposed a classic polynomial-based secret sharing(SS)scheme,which is also widely applied in secret image sharing(SIS).However,the following researchers paid more attention to the development of properties,such as lossless recovery,rather than the principle of Shamir’s polynomial-based SS scheme.In this paper,we introduce matrix theory to analyze Shamir’s polynomial-based scheme as well as propose a general(k,n)threshold SIS construction based on matrix theory.Besides,it is proved that Shamir’s polynomial-based SS scheme is a special case of our construction method.Both experimental results and analyses are given to demonstrate the effectiveness of the proposed construction method.
基金The research result of“A Bite of Teochew Cuisine”of Guangdong Quality Project(Open Online Course)“The Creation of Excellent Science Popularization Works for Chinese Molecular Cooking Micro-course”of Guangdong Science and Technology Program(Project No.:2019A141405059).
文摘“Cantonese Cuisine Master”project is an important policy proposed by China to inherit Cantonese Cuisine culture,promote employment,and achieve targeted poverty reduction and rural revitalization.Confronted with the demands of more diverse education,it is an essential opportunity and task for the education system to consider how to construct high-quality online courses and pursue higher-quality“Cantonese Cuisine Master”projects in line with the new era.This paper,based on the theory of instructional media and information processing theory,will further clarify the demand,dilemma,and developing strategy of online course construction for culinary majors,and explore its construction and practice with the example of“A Bite of Teochew Cuisine,”a Guangdong first-class course.
基金supported by the project of Humanities and Social Sciences granted by the Ministry of Education in China entitled"Analysison the Protection and Utilization of the Drainage System of Traditional Villages under the Background of New Type of Urbanization"
文摘Western urbanization theory has crucial influence on the course of China' s urban and rural construction.Social economy and the scientific distribution of population are the key of the layout of urban and rural construction and an important factor in facilitating the innovative development of urban and rural construction.The continuous improvement of the environment of social resources as well as the quality of life is the focus of China' s urban and rural construction.As western urbanization theory just probes into this specific issue,it offers referential value in urging us to take the path of sustainable development in urban and rural construction.