The unique properties of carbon quantum dots (CQDs) make them promising materials in many ?elds. Herein, we present a facile method for the preparation of photo-luminescent CQDs using humins as the carbon precursor...The unique properties of carbon quantum dots (CQDs) make them promising materials in many ?elds. Herein, we present a facile method for the preparation of photo-luminescent CQDs using humins as the carbon precursor for the purpose of providing a high value-added solution for this “biomass conversion process waste”. The structure of the CQDs was analyzed, and the effects of reaction temperature and time on the CQDs’ ?uorescence were investigated. The results showed that humins were effectively carbonized during the reaction. The ?uorescence intensity of humin-based CQDs initially increased with reaction temperature and time, and subsequently decreased beyond 200℃ and 4 h. Polyaromatic structures and hydrophilic groups such as O-H, C-O, -COOH and C==O groups exist in the CQDs. The humin-based CQDs have the dimension of 3~7 nm with an average size of about 5.5 nm. The highest emission intensity of blue/cyan ?uorescence light at 440 nm is achieved on the excitation with UV light at the wavelength of 330 nm.展开更多
The development of modern science and technology has promoted the overlapping and mutual penetration among different disciplines, which led to the technological innovations in the field of mechanical engineering. The ...The development of modern science and technology has promoted the overlapping and mutual penetration among different disciplines, which led to the technological innovations in the field of mechanical engineering. The mechatronics technology conforms to the law of development of science and technology in today, and combines the mechanical technology and electronic technology together to integrate the logistics, energy flow and information flow. This paper briefly describes the concept of mechatronics and the elements of mechatronics technology, and elaborates on the application of mechatronics technology in three different areas of the Machinery Industry in the form of living examples, finally introduces the future developing direction of mechatronics technology.展开更多
According to features of current undergraduate curriculum design in the teaching of art and science, and combing exploration and the problems that exist during the process of teaching of basic theory of art and scienc...According to features of current undergraduate curriculum design in the teaching of art and science, and combing exploration and the problems that exist during the process of teaching of basic theory of art and science, this paper taking design courses of interactive introduction for example, it tries to innovate classroom teaching methods of exhibition of art and technology, interactive art and technology are principle theoretical classes of their major. Making good use of initiative of self- learning is the core element to help students in subjects learning, we constantly improve and perfect teaching concepts and classroom teaching mode to create the space for students to learn and explore actively, make personalized study according to their own characteristics, we make students experience the interest of freedom, autonomy, inquiry learning, enjoy the delight of appearance of personality and vitality of the burst of life vigor. Combining personal teaching experience, we should explore the way to led art students to learn with initiative in principle theoretical classes of their major.展开更多
"Without an appropriate research setting, a study cannot be qualified as a reasonable piece", this notion is manifested in the methodological polices. In this research, we attempt to examine previous studies within ..."Without an appropriate research setting, a study cannot be qualified as a reasonable piece", this notion is manifested in the methodological polices. In this research, we attempt to examine previous studies within the scope of technology evolution and market perception in telecommunication industry through extracting research structures, methodologies, corresponding variables, and processing methods. A general process of social scientific research is adopted to analyze eighty-four selected papers; and simultaneously, the framework for doing this analysis is established, as well. In this manner, we inspect the subjects and the issues in these papers according to product types, academic domains, and divisions of technological evolution (from 1G to 4G). Then, their research designs are anatomized into the key dimensions of general research conventions. This research eventually provides an entire picture of a research scenario for mobile telecommunication industry; and apparently, this framewbrk can help scholars to establish specific tendencies for academic scenarios in future research plans. Also, we propose the main streams and emerging issues can be expected to engage in the future within both theacademic and the operational fields.展开更多
With the advent of the informatian age, people are working to build a new knowledge network, knowledge of the past gradually pieced together again. The new knowledge network includes not only advanced science and tech...With the advent of the informatian age, people are working to build a new knowledge network, knowledge of the past gradually pieced together again. The new knowledge network includes not only advanced science and technology, but also includes the historical and cultural value, emotion and sense of innovation. Graphic design is a spiritual and material reality and artistic, aesthetic and practical disciplines integrated with each other. Always take the old approach to their creative confined in a narrow space, and this will inevitably lead to failure. Graphic design must rely on the sense of innovation, combined with the image of abstract thinking; ideas can really create unique designs. Therefore, to enhance training in graphic design innovative design capabilities, innovation and the development of graphic design is an important issue. In this paper, graphic design requirements and the role of innovation capacity will be explared, and the method of application of proposed innovative thinking in graphic design process will be provided.展开更多
Nanotechnology currently represents one of the most fascinating human discoveries. With creativity, nanotechnology looks for increasingly smaller spaces in nature to meet the needs and interests of the individuals and...Nanotechnology currently represents one of the most fascinating human discoveries. With creativity, nanotechnology looks for increasingly smaller spaces in nature to meet the needs and interests of the individuals and of the society. Considering that the researches aim to create techniques to move and combine atoms and molecules, a question arises, how will these atoms and molecules behave in the new arrangement. This is the great challenge and this article attempts to bring some benefits to the subiect. It also intends to bring the human sciences, particularly law, to the scenery of this scientific revolution. The lack of regulatory frameworks does not allow humans to search and produce anything without limits. Thus, human rights should be considered an ethical foundation for nanotechnology discoveries, as they represent the "rights" that, at least, humans should have respected.展开更多
In this paper, we conduct theoretical analysis and literature review applications on the form innovation design and implementation of secondary reconstruction for cool core fabric. At present, due to the development o...In this paper, we conduct theoretical analysis and literature review applications on the form innovation design and implementation of secondary reconstruction for cool core fabric. At present, due to the development of The Times and the progress of science and technology, people' s aesthetic concept also transformed, functional and decorative fabric art aesthetic has been raised to an important level, but also strong. Second fabric design is refers to the use of various traditional and high-tech means to the existing fabric to open out the design of the processing, make its surface rich visual texture and touch skin texture. Our method is effective and novel, we will try to make it into real-world applications in the future.展开更多
Teaching and research universities cultivate innovative talents that should have the following characteristics: a strong curiosity and thirst for knowledge, strong ability of self-learning and exploration. They shoul...Teaching and research universities cultivate innovative talents that should have the following characteristics: a strong curiosity and thirst for knowledge, strong ability of self-learning and exploration. They should primarily get engaged in applied basic research, focus on knowledge development and operational needs of the basic technology for logic systems, and acquire subject knowledge and expertise, technological innovation. They should have a good moral training, be able to work or live together with others; have good health and good human qualities, be able to take hard work. For the purposes of teaching and Research University, it is to foster innovative talents, we must adhere to the fundamental status of undergraduate teaching, and gradually promote the study of teaching; we must adhere to the path of industry-university cooperation; students in general education system must be established.展开更多
The bionic consciousness,idea,and practice opened a unique path for the progress of mankind,the development of the society,and the innovation of science and technology from the subconscious bionic activities of the an...The bionic consciousness,idea,and practice opened a unique path for the progress of mankind,the development of the society,and the innovation of science and technology from the subconscious bionic activities of the ancient humans to the significant bionic designs in modern engineering.Nowadays,driven by the practical demand of human beings,bionics becomes an important factor for the sustainable development of technology.A lot of new and outstanding innovations have been produced through the effective interactions between bionics,technology,and demand.The stronger the interactions,the greater the innovation success would be.In this article,the basic factors such as the connotation,characteristics,and interactions of bionic demands,bionic models,bionic simulations,and bionic products were explained,which are the indispensable basic knowledge for improving the ability of innovation especially for the original one,realizing the design and innovation of new technology and manufacturing for better bionic products.展开更多
基金supported by the Research Project for Hot Tracking Items of Beijing Forestry University(2017BLRD03)the National Natural Science Foundation of China(51603012)Beijing Municipal Natural Science Foundation(6182031)
文摘The unique properties of carbon quantum dots (CQDs) make them promising materials in many ?elds. Herein, we present a facile method for the preparation of photo-luminescent CQDs using humins as the carbon precursor for the purpose of providing a high value-added solution for this “biomass conversion process waste”. The structure of the CQDs was analyzed, and the effects of reaction temperature and time on the CQDs’ ?uorescence were investigated. The results showed that humins were effectively carbonized during the reaction. The ?uorescence intensity of humin-based CQDs initially increased with reaction temperature and time, and subsequently decreased beyond 200℃ and 4 h. Polyaromatic structures and hydrophilic groups such as O-H, C-O, -COOH and C==O groups exist in the CQDs. The humin-based CQDs have the dimension of 3~7 nm with an average size of about 5.5 nm. The highest emission intensity of blue/cyan ?uorescence light at 440 nm is achieved on the excitation with UV light at the wavelength of 330 nm.
文摘The development of modern science and technology has promoted the overlapping and mutual penetration among different disciplines, which led to the technological innovations in the field of mechanical engineering. The mechatronics technology conforms to the law of development of science and technology in today, and combines the mechanical technology and electronic technology together to integrate the logistics, energy flow and information flow. This paper briefly describes the concept of mechatronics and the elements of mechatronics technology, and elaborates on the application of mechatronics technology in three different areas of the Machinery Industry in the form of living examples, finally introduces the future developing direction of mechatronics technology.
文摘According to features of current undergraduate curriculum design in the teaching of art and science, and combing exploration and the problems that exist during the process of teaching of basic theory of art and science, this paper taking design courses of interactive introduction for example, it tries to innovate classroom teaching methods of exhibition of art and technology, interactive art and technology are principle theoretical classes of their major. Making good use of initiative of self- learning is the core element to help students in subjects learning, we constantly improve and perfect teaching concepts and classroom teaching mode to create the space for students to learn and explore actively, make personalized study according to their own characteristics, we make students experience the interest of freedom, autonomy, inquiry learning, enjoy the delight of appearance of personality and vitality of the burst of life vigor. Combining personal teaching experience, we should explore the way to led art students to learn with initiative in principle theoretical classes of their major.
文摘"Without an appropriate research setting, a study cannot be qualified as a reasonable piece", this notion is manifested in the methodological polices. In this research, we attempt to examine previous studies within the scope of technology evolution and market perception in telecommunication industry through extracting research structures, methodologies, corresponding variables, and processing methods. A general process of social scientific research is adopted to analyze eighty-four selected papers; and simultaneously, the framework for doing this analysis is established, as well. In this manner, we inspect the subjects and the issues in these papers according to product types, academic domains, and divisions of technological evolution (from 1G to 4G). Then, their research designs are anatomized into the key dimensions of general research conventions. This research eventually provides an entire picture of a research scenario for mobile telecommunication industry; and apparently, this framewbrk can help scholars to establish specific tendencies for academic scenarios in future research plans. Also, we propose the main streams and emerging issues can be expected to engage in the future within both theacademic and the operational fields.
文摘With the advent of the informatian age, people are working to build a new knowledge network, knowledge of the past gradually pieced together again. The new knowledge network includes not only advanced science and technology, but also includes the historical and cultural value, emotion and sense of innovation. Graphic design is a spiritual and material reality and artistic, aesthetic and practical disciplines integrated with each other. Always take the old approach to their creative confined in a narrow space, and this will inevitably lead to failure. Graphic design must rely on the sense of innovation, combined with the image of abstract thinking; ideas can really create unique designs. Therefore, to enhance training in graphic design innovative design capabilities, innovation and the development of graphic design is an important issue. In this paper, graphic design requirements and the role of innovation capacity will be explared, and the method of application of proposed innovative thinking in graphic design process will be provided.
文摘Nanotechnology currently represents one of the most fascinating human discoveries. With creativity, nanotechnology looks for increasingly smaller spaces in nature to meet the needs and interests of the individuals and of the society. Considering that the researches aim to create techniques to move and combine atoms and molecules, a question arises, how will these atoms and molecules behave in the new arrangement. This is the great challenge and this article attempts to bring some benefits to the subiect. It also intends to bring the human sciences, particularly law, to the scenery of this scientific revolution. The lack of regulatory frameworks does not allow humans to search and produce anything without limits. Thus, human rights should be considered an ethical foundation for nanotechnology discoveries, as they represent the "rights" that, at least, humans should have respected.
文摘In this paper, we conduct theoretical analysis and literature review applications on the form innovation design and implementation of secondary reconstruction for cool core fabric. At present, due to the development of The Times and the progress of science and technology, people' s aesthetic concept also transformed, functional and decorative fabric art aesthetic has been raised to an important level, but also strong. Second fabric design is refers to the use of various traditional and high-tech means to the existing fabric to open out the design of the processing, make its surface rich visual texture and touch skin texture. Our method is effective and novel, we will try to make it into real-world applications in the future.
文摘Teaching and research universities cultivate innovative talents that should have the following characteristics: a strong curiosity and thirst for knowledge, strong ability of self-learning and exploration. They should primarily get engaged in applied basic research, focus on knowledge development and operational needs of the basic technology for logic systems, and acquire subject knowledge and expertise, technological innovation. They should have a good moral training, be able to work or live together with others; have good health and good human qualities, be able to take hard work. For the purposes of teaching and Research University, it is to foster innovative talents, we must adhere to the fundamental status of undergraduate teaching, and gradually promote the study of teaching; we must adhere to the path of industry-university cooperation; students in general education system must be established.
基金supported by the Cooperative Innovation Platform of National Oil Shale Exploration Development and Research,the National Natural Science Foundation for Youths(Grant Nos.51205160 and 51375006)the Specialized Research Fund for the Doctoral Program of Higher Education of China(Grant No.20120061120110)
文摘The bionic consciousness,idea,and practice opened a unique path for the progress of mankind,the development of the society,and the innovation of science and technology from the subconscious bionic activities of the ancient humans to the significant bionic designs in modern engineering.Nowadays,driven by the practical demand of human beings,bionics becomes an important factor for the sustainable development of technology.A lot of new and outstanding innovations have been produced through the effective interactions between bionics,technology,and demand.The stronger the interactions,the greater the innovation success would be.In this article,the basic factors such as the connotation,characteristics,and interactions of bionic demands,bionic models,bionic simulations,and bionic products were explained,which are the indispensable basic knowledge for improving the ability of innovation especially for the original one,realizing the design and innovation of new technology and manufacturing for better bionic products.