This paper deeply explores the application strategies of short-term cost curves in the field of economics.Firstly,it elaborates on the basic theories and constituent elements of short-term cost curves.By drawing and a...This paper deeply explores the application strategies of short-term cost curves in the field of economics.Firstly,it elaborates on the basic theories and constituent elements of short-term cost curves.By drawing and analyzing the shortterm cost curve graphs,it presents the internal relationship between costs and output.Then,it focuses on researching its application strategies in multiple aspects such as enterprise production decisions,market pricing,and industry competition analysis.展开更多
As the global elderly population increases,depression within this group has become a significant public health concern.Although exercise has been recognized for its potential to improve depression in the elderly,the b...As the global elderly population increases,depression within this group has become a significant public health concern.Although exercise has been recognized for its potential to improve depression in the elderly,the benefits,risks,and implementation strategies remain contentious.This review attempts to examine the impact of exercise on depression in older adults,including potential benefits,risks,and suggestions for application.Our analysis highlights the benefits of aerobic and resistance training,which can significantly alleviate depressive symptoms and enhance overall quality of life.Despite these benefits,the review acknowledges the complexity of the exercise-depression interaction in the elderly,necessitating personalized exercise regimens.Potential risks,such as muscle and joint pain,are pointed out,emphasizing the importance of tailored,supervised exercise programs.The review calls for future research to focus on identifying the most effective types of exercise and regimens for this population,considering factors such as age,gender,and existing health conditions.Lastly,it advocates for the inclusion of exercise in comprehensive treatment plans for depression in older adults,viewing it as a promising step toward achieving holistic mental health care in a growing demographic.展开更多
With the rapid development of virtual reality technology,it has been widely used in the field of education.It can promote the development of learning transfer,which is an effective method for learners to learn effecti...With the rapid development of virtual reality technology,it has been widely used in the field of education.It can promote the development of learning transfer,which is an effective method for learners to learn effectively.Therefore,this paper describes how to use virtual reality technology to achieve learning transfer in order to achieve teaching goals and improve learning efficiency.展开更多
To improve physical education in vocational colleges,a hybrid teaching model should be developed,taking into account local conditions,gradual progress,and deep integration.The process includes resetting teaching goals...To improve physical education in vocational colleges,a hybrid teaching model should be developed,taking into account local conditions,gradual progress,and deep integration.The process includes resetting teaching goals,optimizing teaching content,adjusting teaching segments,and improving teaching evaluation.Teachers can use video resources to interact with students before class,set up different student display projects during the course,encourage group cooperation and inter-group assessment,conduct in-class tests and knowledge competitions to reinforce students’sports skills,and suggest appropriate after-class activities.An online and offline self-study model can also motivate students to participate in sports.展开更多
In order to further enhance the aesthetics,artistry and culture of interior design,this paper mainly studies and analyzes the application strategies of traditional Chinese cultural elements in interior design,in order...In order to further enhance the aesthetics,artistry and culture of interior design,this paper mainly studies and analyzes the application strategies of traditional Chinese cultural elements in interior design,in order to provide reference for future developments.展开更多
This paper deeply explores oversampling technology and its applications in biomedical signal detection.It first expounds on the significance of oversampling technology in biomedical signal detection,and then analyzes ...This paper deeply explores oversampling technology and its applications in biomedical signal detection.It first expounds on the significance of oversampling technology in biomedical signal detection,and then analyzes the application strategies of oversampling technology in this field.On this basis,it details the specific applications of oversampling technology in electrophysiological signal detection,biomedical imaging signal processing,and other biomedical signal detections,and verifies its effectiveness through practical case analysis,aiming to provide certain references for relevant researchers.展开更多
Covalent organic frameworks(COFs)are crystalline porous polymeric materials composed of organic monomers connected by strong covalent bonds and offer high stability,good crystallinity,a large specific surface area,and...Covalent organic frameworks(COFs)are crystalline porous polymeric materials composed of organic monomers connected by strong covalent bonds and offer high stability,good crystallinity,a large specific surface area,and controllable structures.COFs are widely used in the fields of adsorption and separation,catalysis,photovoltaics,and drug-delivery.The structural regulation and performance optimization of COFs can be realized through the modification of ligands and the selection of linkage methods.In which,the types of linkage are closely related to the stability and performance of COFs.In this review,nitrogencontaining linkage-bonds(NCLBs)in COFs are divided into N-containing double bonds,N-containing conjugated rings and N-containing unconjugated rings.The association between structure and performance of COFs is elaborated and the synthesis methods of COFs are systematically summarized.Moreover,the structural design,theoretical prediction and machinable application of COFs are prospected.展开更多
Bridge engineering is highly specialized and has spatial characteristics,which puts forward higher requirements for design work.The advancement of information technology has provided ample tools to facilitate bridge d...Bridge engineering is highly specialized and has spatial characteristics,which puts forward higher requirements for design work.The advancement of information technology has provided ample tools to facilitate bridge design work,with building information modeling(BIM)technology being one of them.BIM technology ensures the efficiency and quality of the forward design of bridges,while also reducing construction costs.This article starts with defining the concept of BIM technology,followed by a discussion on its advantages in bridge design and application process,which serves as a reference for other bridge designers.展开更多
Children are the future of the motherland. In the process of education and teaching reform, children should be able to be placed in the social environment of ecological development, so as to be able to better implemen...Children are the future of the motherland. In the process of education and teaching reform, children should be able to be placed in the social environment of ecological development, so as to be able to better implement the educational content and educational strategies for children to understand and protect the ecological environment. Kindergarten education and teaching activities are based on children's actual needs and physical and mental development characteristics, and carry out educational innovation. While continuously stimulating children's awareness of independent learning, kindergarten education and teaching activities can also imperceptibly construct ecological environment and practical activities, so that diversified and refined educational strategies can be applied to ecological education. In kindergarten education, suitable ecological education concepts should be created for children, so that children can form personalized development advantages, correctly treat ecological concepts, obtain effective progress and improve thinking ability under the condition of sustainable development of education while combining children's environmental cognitive characteristics and ecological awareness.展开更多
As an important carrier of red culture,red music culture carries the glorious history of revolution,construction,and reform led by the Communist Party of China(CPC),and has significant functional value in cultivating ...As an important carrier of red culture,red music culture carries the glorious history of revolution,construction,and reform led by the Communist Party of China(CPC),and has significant functional value in cultivating students’ideals,values,and cultural identity,as well as patriotic consciousness and national pride.However,the integration of red music culture into the ideological and political education of primary and secondary schools faces the dilemmas of low cultivation awareness,insufficient excavation of resources,and lack of optimization of atmosphere and field.In view of these problems,the strategies of enhancing cultivation awareness,excavating the resources in-depth,and creating a positive atmosphere and field provide new ideas and methods for ideological and political education in primary and secondary schools.展开更多
Rice seedling blight,caused by various fungi,including Fusarium oxysporum,poses a severe threat to rice production.As awareness grows regarding the environmental and safety hazards associated with the application of f...Rice seedling blight,caused by various fungi,including Fusarium oxysporum,poses a severe threat to rice production.As awareness grows regarding the environmental and safety hazards associated with the application of fungicides for managing rice seedling blight,there has been a shift in focus towards biological control agents.In this study,we isolated biocontrol bacteria from paddy fields that significantly inhibited the growth of F.oxysporum in vitro and identified the strains as Bacillus amyloliquefaciens T40 and Bacillus pumilus T208.Additionally,our findings indicated that the combined application of these Bacillus strains in soil was more effective in reducing the incidence of rice seedling blight than their individual use.Analysis of 16S and internal transcribed spacer rRNA gene sequencing data revealed that the mixture of the T40 and T208 strains exhibited the lowest average clustering coefficients,which were negatively correlated with the biomass of F.oxysporum-inoculated rice seedlings.Furthermore,this mixture led to higher stochastic assembly(average|βNTI|<2)and reduced selection pressures on rice rhizosphere bacteria compared with individual strain applications.The mixture of the T40 and T208 strains also significantly increased the expression of defense-related genes.In conclusion,the mixture of the T40 and T208 strains effectively modulates microbial community structures,enhances microbial network stability,and boosts the resistance against rice seedling blight.Our study supports the development and utilization of biological resources for crop protection.展开更多
Advertisements,as an important business strategy,are now ubiquitous.As a kind of strategy of language expression,pragmatic presupposition plays an extraordinarily important role in advertising.Based on many classical ...Advertisements,as an important business strategy,are now ubiquitous.As a kind of strategy of language expression,pragmatic presupposition plays an extraordinarily important role in advertising.Based on many classical cases of Chinese and English advertisements,this paper is aimed to discuss and analyze the types and features of pragmatic presupposition.The findings of this paper will provide advertisement producers with theoretical knowledge and practical strategies about how to apply pragmatic presupposition to create effective and persuasive advertisements which can really catch the eyeballs of consumers.展开更多
With the increasingly fiercer talented personnel competition, the introduction of a talented personnel competition mechanism has become imperative in the commercial age. In this paper, the necessities of introducing a...With the increasingly fiercer talented personnel competition, the introduction of a talented personnel competition mechanism has become imperative in the commercial age. In this paper, the necessities of introducing a talented personnel competition mechanism are analyzed, and then the guiding ideology and principles of the talented personnel competition mechanism are proposed, and finally the application strategies of the talented personnel competition mechanism are discussed展开更多
Since the beginning of the 20th century, China's social and economic development has accelerated, and people's material living conditions have been greatly improved. Now, under the background of rich living co...Since the beginning of the 20th century, China's social and economic development has accelerated, and people's material living conditions have been greatly improved. Now, under the background of rich living conditions, people begin to pursue the enjoyment of spiritual realm, and their aesthetic ability has gradually improved, especially in the aesthetic of clothing. With the improvement of people's requirements for clothing design, the demand for clothing design talents is increasing. As a place for training professional skilled talents, secondary vocational schools gradually improve the teaching quality of clothing design-related majors. With the goal of providing excellent talents for the clothing design field, new teaching methods are continuously explored. This paper mainly discusses the application of micro-class in clothing technology teaching in secondary vocational schools for reference.展开更多
With the in-depth reform of education,taking students as the center,letting students master the basic knowledge of the theory,but also training students’practical skills,is an important goal of the current artificial...With the in-depth reform of education,taking students as the center,letting students master the basic knowledge of the theory,but also training students’practical skills,is an important goal of the current artificial intelligence curriculum teaching reform.As a new learning method,deep learning is applied to the teaching of artificial intelligence courses,which can not only give play to students’subjective initiative,but also improve the efficiency of students’classroom learning.In order to explore the specific application of deep learning in the teaching of artificial intelligence courses,this article analyzes the key points of the application of deep learning in artificial intelligence courses.In addition,further explores the application strategies of deep learning in artificial intelligence courses.As it aims to provide some useful references to improve the actual efficiency of artificial intelligence course teaching.展开更多
Improving both grain yield and resource use efficiencies simultaneously is a major challenge in rice production.However,few studies have focused on integrating dense planting with delayed and reduced nitrogen applicat...Improving both grain yield and resource use efficiencies simultaneously is a major challenge in rice production.However,few studies have focused on integrating dense planting with delayed and reduced nitrogen application to enhance grain yield,nitrogen use efficiency (NUE) and radiation use efficiency (RUE) in rice (Oryza sativa L.) in the double rice cropping system in South China.A high-yielding indica hybrid rice cultivar (Yliangyou 143) was grown in field experiments in Guangxi,South China,with three cultivation managements:farmers’practice (FP),dense planting with equal N input and delayed N application (DPEN) and dense planting with reduced N input and delayed N application (DPRN).The grain yields of DPRN reached 10.6 and 9.78 t ha^(–1) in the early and late cropping seasons,respectively,which were significantly higher than the corresponding yields of FP by 23.9–29.9%.The grain yields in DPEN and DPRN were comparable.NUE in DPRN reached 65.2–72.9 kg kg^(–1),which was 61.2–74.1% higher than that in FP and 24.6–30.2% higher than that in DPEN.RUE in DPRN achieved 1.60–1.80 g MJ^(–1),which was 28.6–37.9% higher than that in FP.The productive tiller percentage in DPRN was 7.9–36.2% higher than that in DPEN.Increases in crop growth rate,leaf area duration,N uptake from panicle initiation to heading and enhancement of the apparent transformation ratio of dry weight from stems and leaf sheaths to panicles all contributed to higher grain yield and higher resource use efficiencies in DPRN.Correlation analysis revealed that the agronomic and physiological traits mentioned above were significantly and positively correlated with grain yield.Comparison trials carried out in Guangdong in 2018 and 2019 also showed that DPRN performed better than DPEN.We conclude that DPRN is a feasible approach for simultaneously increasing grain yield,NUE and RUE in the double rice cropping system in South China.展开更多
With the development of China's economy,the implementation scale and scope of hydraulic engineering projects are increasing,and the application of anti-seepage technology has an important influence on the construc...With the development of China's economy,the implementation scale and scope of hydraulic engineering projects are increasing,and the application of anti-seepage technology has an important influence on the construction quality of hydraulic engineering.In this paper,the significance and problems of the application of anti-seepage technology in the construction of hydraulic engineering projects were mainly analyzed,and specific application strategies were proposed.展开更多
This paper proposes the application strategy of participatory teaching mode in the college English teaching. In our country＇ s university English teaching, it uses the translation law. This law mainly teaches English...This paper proposes the application strategy of participatory teaching mode in the college English teaching. In our country＇ s university English teaching, it uses the translation law. This law mainly teaches English grammar elementary knowledge and mother tongue English translates the method mutually. The teacher attends class with the mother tongue does not need English to carry on the explanation as the classroom instruction quite is easy to grasp. The direct method requests the teacher to teach with the skillful English, does not have to use the mother tongue but because the student hearing level is irregular. Cognitive theory believes that the process of language learning is the process of combining old and new knowledge, and language ability from the theoretical knowledge into the application of automatic process. Therefore, we make the integration of the mentioned items and propose our novel teaching paradigm which is effective.展开更多
This paper proposes the application strategy of the intelligent technology in electronic engineering automation control. Artificial intelligence technology is about to realize the calculation of perception, reasoning ...This paper proposes the application strategy of the intelligent technology in electronic engineering automation control. Artificial intelligence technology is about to realize the calculation of perception, reasoning and behavior study of it is different from most of the psychology, because it is more of an emphasis on the calculation, the artificial intelligence is also different from most of the computer science as because it is more of an emphasis on the perception, reasoning, and behavior, and future applications of artificial intelligence is beyond imagination. Regarding the multi-agent system target identification data fusion, the goal type is a proposition, each intelligent body gives through processing regarding the goal type judgment result is evidence, we discussed in detail of the essential applications on the item that will promote the further development.展开更多
文摘This paper deeply explores the application strategies of short-term cost curves in the field of economics.Firstly,it elaborates on the basic theories and constituent elements of short-term cost curves.By drawing and analyzing the shortterm cost curve graphs,it presents the internal relationship between costs and output.Then,it focuses on researching its application strategies in multiple aspects such as enterprise production decisions,market pricing,and industry competition analysis.
基金the 2021 Undergraduate Education and Teaching Reform Project of Shandong Province“Research on the Model of Integrated Education Inside and Outside of College Physical Education”(M2021107).
文摘As the global elderly population increases,depression within this group has become a significant public health concern.Although exercise has been recognized for its potential to improve depression in the elderly,the benefits,risks,and implementation strategies remain contentious.This review attempts to examine the impact of exercise on depression in older adults,including potential benefits,risks,and suggestions for application.Our analysis highlights the benefits of aerobic and resistance training,which can significantly alleviate depressive symptoms and enhance overall quality of life.Despite these benefits,the review acknowledges the complexity of the exercise-depression interaction in the elderly,necessitating personalized exercise regimens.Potential risks,such as muscle and joint pain,are pointed out,emphasizing the importance of tailored,supervised exercise programs.The review calls for future research to focus on identifying the most effective types of exercise and regimens for this population,considering factors such as age,gender,and existing health conditions.Lastly,it advocates for the inclusion of exercise in comprehensive treatment plans for depression in older adults,viewing it as a promising step toward achieving holistic mental health care in a growing demographic.
文摘With the rapid development of virtual reality technology,it has been widely used in the field of education.It can promote the development of learning transfer,which is an effective method for learners to learn effectively.Therefore,this paper describes how to use virtual reality technology to achieve learning transfer in order to achieve teaching goals and improve learning efficiency.
文摘To improve physical education in vocational colleges,a hybrid teaching model should be developed,taking into account local conditions,gradual progress,and deep integration.The process includes resetting teaching goals,optimizing teaching content,adjusting teaching segments,and improving teaching evaluation.Teachers can use video resources to interact with students before class,set up different student display projects during the course,encourage group cooperation and inter-group assessment,conduct in-class tests and knowledge competitions to reinforce students’sports skills,and suggest appropriate after-class activities.An online and offline self-study model can also motivate students to participate in sports.
文摘In order to further enhance the aesthetics,artistry and culture of interior design,this paper mainly studies and analyzes the application strategies of traditional Chinese cultural elements in interior design,in order to provide reference for future developments.
文摘This paper deeply explores oversampling technology and its applications in biomedical signal detection.It first expounds on the significance of oversampling technology in biomedical signal detection,and then analyzes the application strategies of oversampling technology in this field.On this basis,it details the specific applications of oversampling technology in electrophysiological signal detection,biomedical imaging signal processing,and other biomedical signal detections,and verifies its effectiveness through practical case analysis,aiming to provide certain references for relevant researchers.
基金supported by the National Key Research and Development Program of China(Nos.2022YFD1700800 and 2023YFC3905903)the Science and Technology Project of Education Department of Jiangxi Province(No.GJJ2201103)+2 种基金the Fund of Nanchang Hangkong University(Nos.EA202201110 and EA202201065)National Undergraduate Innovation and Entrepreneurship Training Program(No.202310406023)the National Natural Science Foundation of China(No.52470149)。
文摘Covalent organic frameworks(COFs)are crystalline porous polymeric materials composed of organic monomers connected by strong covalent bonds and offer high stability,good crystallinity,a large specific surface area,and controllable structures.COFs are widely used in the fields of adsorption and separation,catalysis,photovoltaics,and drug-delivery.The structural regulation and performance optimization of COFs can be realized through the modification of ligands and the selection of linkage methods.In which,the types of linkage are closely related to the stability and performance of COFs.In this review,nitrogencontaining linkage-bonds(NCLBs)in COFs are divided into N-containing double bonds,N-containing conjugated rings and N-containing unconjugated rings.The association between structure and performance of COFs is elaborated and the synthesis methods of COFs are systematically summarized.Moreover,the structural design,theoretical prediction and machinable application of COFs are prospected.
文摘Bridge engineering is highly specialized and has spatial characteristics,which puts forward higher requirements for design work.The advancement of information technology has provided ample tools to facilitate bridge design work,with building information modeling(BIM)technology being one of them.BIM technology ensures the efficiency and quality of the forward design of bridges,while also reducing construction costs.This article starts with defining the concept of BIM technology,followed by a discussion on its advantages in bridge design and application process,which serves as a reference for other bridge designers.
文摘Children are the future of the motherland. In the process of education and teaching reform, children should be able to be placed in the social environment of ecological development, so as to be able to better implement the educational content and educational strategies for children to understand and protect the ecological environment. Kindergarten education and teaching activities are based on children's actual needs and physical and mental development characteristics, and carry out educational innovation. While continuously stimulating children's awareness of independent learning, kindergarten education and teaching activities can also imperceptibly construct ecological environment and practical activities, so that diversified and refined educational strategies can be applied to ecological education. In kindergarten education, suitable ecological education concepts should be created for children, so that children can form personalized development advantages, correctly treat ecological concepts, obtain effective progress and improve thinking ability under the condition of sustainable development of education while combining children's environmental cognitive characteristics and ecological awareness.
文摘As an important carrier of red culture,red music culture carries the glorious history of revolution,construction,and reform led by the Communist Party of China(CPC),and has significant functional value in cultivating students’ideals,values,and cultural identity,as well as patriotic consciousness and national pride.However,the integration of red music culture into the ideological and political education of primary and secondary schools faces the dilemmas of low cultivation awareness,insufficient excavation of resources,and lack of optimization of atmosphere and field.In view of these problems,the strategies of enhancing cultivation awareness,excavating the resources in-depth,and creating a positive atmosphere and field provide new ideas and methods for ideological and political education in primary and secondary schools.
基金supported by the Zhejiang Provincial Natural Science Foundation,China(Grant No.LQ24C010007)Zhejiang Science and Technology Major Program on Rice New Variety Breeding,China(Grant No.2021C02063)+4 种基金the Agricultural Sciences and Technologies Innovation Program,China(Grant No.CAAS-CSCB-202301)the Key Projects of Zhejiang Provincial Natural Science Foundation,China(Grant No.LZ23C130002)the Youth Innovation Program of Chinese Academy of Agricultural Sciences(Grant No.Y2023QC22)the Joint Open Competitive Project of the Yazhou Bay Seed Laboratory and China National Seed Company Limited(Grant Nos.B23YQ1514 and B23CQ15EP)the External Cooperation Projects of Biotechnology Research Institute,Fujian Academy of Agricultural Sciences,China(Grant No.DWHZ2024-07).
文摘Rice seedling blight,caused by various fungi,including Fusarium oxysporum,poses a severe threat to rice production.As awareness grows regarding the environmental and safety hazards associated with the application of fungicides for managing rice seedling blight,there has been a shift in focus towards biological control agents.In this study,we isolated biocontrol bacteria from paddy fields that significantly inhibited the growth of F.oxysporum in vitro and identified the strains as Bacillus amyloliquefaciens T40 and Bacillus pumilus T208.Additionally,our findings indicated that the combined application of these Bacillus strains in soil was more effective in reducing the incidence of rice seedling blight than their individual use.Analysis of 16S and internal transcribed spacer rRNA gene sequencing data revealed that the mixture of the T40 and T208 strains exhibited the lowest average clustering coefficients,which were negatively correlated with the biomass of F.oxysporum-inoculated rice seedlings.Furthermore,this mixture led to higher stochastic assembly(average|βNTI|<2)and reduced selection pressures on rice rhizosphere bacteria compared with individual strain applications.The mixture of the T40 and T208 strains also significantly increased the expression of defense-related genes.In conclusion,the mixture of the T40 and T208 strains effectively modulates microbial community structures,enhances microbial network stability,and boosts the resistance against rice seedling blight.Our study supports the development and utilization of biological resources for crop protection.
文摘Advertisements,as an important business strategy,are now ubiquitous.As a kind of strategy of language expression,pragmatic presupposition plays an extraordinarily important role in advertising.Based on many classical cases of Chinese and English advertisements,this paper is aimed to discuss and analyze the types and features of pragmatic presupposition.The findings of this paper will provide advertisement producers with theoretical knowledge and practical strategies about how to apply pragmatic presupposition to create effective and persuasive advertisements which can really catch the eyeballs of consumers.
文摘With the increasingly fiercer talented personnel competition, the introduction of a talented personnel competition mechanism has become imperative in the commercial age. In this paper, the necessities of introducing a talented personnel competition mechanism are analyzed, and then the guiding ideology and principles of the talented personnel competition mechanism are proposed, and finally the application strategies of the talented personnel competition mechanism are discussed
文摘Since the beginning of the 20th century, China's social and economic development has accelerated, and people's material living conditions have been greatly improved. Now, under the background of rich living conditions, people begin to pursue the enjoyment of spiritual realm, and their aesthetic ability has gradually improved, especially in the aesthetic of clothing. With the improvement of people's requirements for clothing design, the demand for clothing design talents is increasing. As a place for training professional skilled talents, secondary vocational schools gradually improve the teaching quality of clothing design-related majors. With the goal of providing excellent talents for the clothing design field, new teaching methods are continuously explored. This paper mainly discusses the application of micro-class in clothing technology teaching in secondary vocational schools for reference.
文摘With the in-depth reform of education,taking students as the center,letting students master the basic knowledge of the theory,but also training students’practical skills,is an important goal of the current artificial intelligence curriculum teaching reform.As a new learning method,deep learning is applied to the teaching of artificial intelligence courses,which can not only give play to students’subjective initiative,but also improve the efficiency of students’classroom learning.In order to explore the specific application of deep learning in the teaching of artificial intelligence courses,this article analyzes the key points of the application of deep learning in artificial intelligence courses.In addition,further explores the application strategies of deep learning in artificial intelligence courses.As it aims to provide some useful references to improve the actual efficiency of artificial intelligence course teaching.
基金supported by the National Key Research and Development Program of China(2016YFD0300108-5)the Natural Science Foundation of Guangdong Province,China(2017A030313110,2018A030313463)+2 种基金the Discipline Team Building Project of Guangdong Academy of Agricultural Sciences,China(201617TD)the Special Fund for Scientific Innovation Strategy,China(Construction of High-Level Academy of Agricultural Science)the Guangdong Provincial Key Laboratory of Applied Botany,South China Botanical Garden,Chinese Academy of Sciences(AB2018013)。
文摘Improving both grain yield and resource use efficiencies simultaneously is a major challenge in rice production.However,few studies have focused on integrating dense planting with delayed and reduced nitrogen application to enhance grain yield,nitrogen use efficiency (NUE) and radiation use efficiency (RUE) in rice (Oryza sativa L.) in the double rice cropping system in South China.A high-yielding indica hybrid rice cultivar (Yliangyou 143) was grown in field experiments in Guangxi,South China,with three cultivation managements:farmers’practice (FP),dense planting with equal N input and delayed N application (DPEN) and dense planting with reduced N input and delayed N application (DPRN).The grain yields of DPRN reached 10.6 and 9.78 t ha^(–1) in the early and late cropping seasons,respectively,which were significantly higher than the corresponding yields of FP by 23.9–29.9%.The grain yields in DPEN and DPRN were comparable.NUE in DPRN reached 65.2–72.9 kg kg^(–1),which was 61.2–74.1% higher than that in FP and 24.6–30.2% higher than that in DPEN.RUE in DPRN achieved 1.60–1.80 g MJ^(–1),which was 28.6–37.9% higher than that in FP.The productive tiller percentage in DPRN was 7.9–36.2% higher than that in DPEN.Increases in crop growth rate,leaf area duration,N uptake from panicle initiation to heading and enhancement of the apparent transformation ratio of dry weight from stems and leaf sheaths to panicles all contributed to higher grain yield and higher resource use efficiencies in DPRN.Correlation analysis revealed that the agronomic and physiological traits mentioned above were significantly and positively correlated with grain yield.Comparison trials carried out in Guangdong in 2018 and 2019 also showed that DPRN performed better than DPEN.We conclude that DPRN is a feasible approach for simultaneously increasing grain yield,NUE and RUE in the double rice cropping system in South China.
文摘With the development of China's economy,the implementation scale and scope of hydraulic engineering projects are increasing,and the application of anti-seepage technology has an important influence on the construction quality of hydraulic engineering.In this paper,the significance and problems of the application of anti-seepage technology in the construction of hydraulic engineering projects were mainly analyzed,and specific application strategies were proposed.
文摘This paper proposes the application strategy of participatory teaching mode in the college English teaching. In our country＇ s university English teaching, it uses the translation law. This law mainly teaches English grammar elementary knowledge and mother tongue English translates the method mutually. The teacher attends class with the mother tongue does not need English to carry on the explanation as the classroom instruction quite is easy to grasp. The direct method requests the teacher to teach with the skillful English, does not have to use the mother tongue but because the student hearing level is irregular. Cognitive theory believes that the process of language learning is the process of combining old and new knowledge, and language ability from the theoretical knowledge into the application of automatic process. Therefore, we make the integration of the mentioned items and propose our novel teaching paradigm which is effective.
文摘This paper proposes the application strategy of the intelligent technology in electronic engineering automation control. Artificial intelligence technology is about to realize the calculation of perception, reasoning and behavior study of it is different from most of the psychology, because it is more of an emphasis on the calculation, the artificial intelligence is also different from most of the computer science as because it is more of an emphasis on the perception, reasoning, and behavior, and future applications of artificial intelligence is beyond imagination. Regarding the multi-agent system target identification data fusion, the goal type is a proposition, each intelligent body gives through processing regarding the goal type judgment result is evidence, we discussed in detail of the essential applications on the item that will promote the further development.
