With the purpose to understand better the role of information not only in communication systems,but actually in our environmental reality,this paper presented the model of Universal Triangle of Reality,composed by Mat...With the purpose to understand better the role of information not only in communication systems,but actually in our environmental reality,this paper presented the model of Universal Triangle of Reality,composed by Matter,Energy and Information,as fundamental constitutive components of this reality.Arguments coming from the field of physics,both at the cosmic and microparticles scale are presented,showing undoubtable conclusions that information is a fundamental component of reality in our material world.At the cosmic level,where the unusual high concentration of mass in the black holes constitutes a special state of matter,suitable for analysis of their special properties,the problem of the conservation principle of information is discussed.At the quantum level,the special unusual characteristics derived from the non-localization principle are also highlighted,together with information-involved problems and solutions.The Universal Triangle of Reality in the living systems reveals the high role of the involved information,both as the informational common organization on the entire evolution scale,and as the info-dynamics processes inside of own structure and resulted from interaction with the environment.The relevant advances in the approaching and understanding of the functionality of the living systems from informational point of view are highlighted,showing the high contribution of information concepts in understanding/solving of various older/recent problems in philosophy,neuroscience/neurology/psychiatry,neuro-physics/neuropsychology/behavior sciences,geriatrics/gerontology,biology and life sciences.展开更多
Based on the development of the non-governmental enterprises of science and technology in the past twenty years, this paper applied an interpretive structure model (ISM) to make a research on the regular development p...Based on the development of the non-governmental enterprises of science and technology in the past twenty years, this paper applied an interpretive structure model (ISM) to make a research on the regular development pattern of these enterprises and to probe into the interior development mechanism theoretically. The studying results supply ideas underlying the scientific decision for the governments at all levels and show the direction of the development of the non-governmental enterprises of science and technology in the future.展开更多
In the past decades,a number of researchers have tried hard to identify the move-step structure of different sections in research articles(RAs)from various disciplines.However,there is a very few amount of previous st...In the past decades,a number of researchers have tried hard to identify the move-step structure of different sections in research articles(RAs)from various disciplines.However,there is a very few amount of previous studies conducted on the move-step structure of the Introduction section of English medical science research articles(MSRAs)written by Chinese researchers published in international journals.In order to fill this gap,the present study aims to identify the moves,steps,and their structure of the Introduction section of English MSRAs written by Chinese researchers at Zunyi Medical University(ZMU)published in international journals.To create the target corpus of the present study,30 Introductions were purposively selected from 25 international medical science journals,which were published from 2007 to 2015.It is worth noting that all the authors are restricted to Chinese researchers only and at least one author must come from ZMU.The framework of Kanoksilapatham’s(2005)was adopted for the move-step analysis in the present study.The results demonstrated that these Introduction sections were generally written with three moves following the selected framework.In addition,there were two new steps that occurred in the Introduction section of these English MSRAs.In conclusion,the findings of the present study might provide a guideline for the research who plan to write English MSRAs for international articles more effectively.Moreover,the findings may provide valuable information for academic writing textbook designers as well.展开更多
The fields of structural geology and tectonics have witnessed great progress over the last decade and are poised for further expansion in the future. One of the significant breakthroughs is the establishment of the ...The fields of structural geology and tectonics have witnessed great progress over the last decade and are poised for further expansion in the future. One of the significant breakthroughs is the establishment of the 'Beyond Plate Tectonics Theory' where a combination of conceptual models and numerical modeling on plume tectonics and plate tectonics has enabled new insights into the structural and tectonic architecture and processes in the deep interior and deep sea. This paper synthesizes developments of structural geology and tectonics from a macroscopic perspective in deep interior and deep sea. Four key techniques are also reviewed: satellite altimetry for surface structures in deep-sea multi-beam sea-floor mapping; tomography for tectonics of the deep interior; diverse modeling approaches and software for unfolding dynamic evolution; and techniques for HT/HP experiments on material rheology and in situ component measurements.展开更多
The effect of In composition on two-dimensional electron gas in wurtzite AlGaN/InGaN heterostructures is theoretically investigated. The sheet carrier density is shown to increase nearly linearly with In mole fraction...The effect of In composition on two-dimensional electron gas in wurtzite AlGaN/InGaN heterostructures is theoretically investigated. The sheet carrier density is shown to increase nearly linearly with In mole fraction x, due to the increase in the polarization charge at the AlGaN/InGaN interface. The electron sheet density is enhanced with the doping in the AlGaN layer. The sheet carrier density is as high as 3.7×1013 cm^-2 at the donor density of 10×1018 cm^-3 for the HEMT structure with x=0.3. The contribution of additional donor density on the electron sheet density is nearly independent of the In mole fraction.展开更多
The invention and development of new research concepts, novel methodologies, and novel bioanalytical techniques are essential in advancing the animal sciences, which include feed and nutrition science. This article in...The invention and development of new research concepts, novel methodologies, and novel bioanalytical techniques are essential in advancing the animal sciences, which include feed and nutrition science. This article introduces a novel approach that shows the potential of advanced synchrotron-based bioanalytical technology for studying the effects of molecular structural changes in feeds induced by various treatments (e.g., genetic modification, gene silencing, heat-related feed processing, biofuel processing) in relation to nutrient digestion and absorption in animals. Advanced techniques based on synchrotron radiation (e.g., synchrotron radiation infrared microspectroscopy (SR-IMS) and synchrotron radiation X-ray techniques) have been developed as a fast, noninvasive, bioanalytical technology that, unlike traditional wet chemistry methods, does not damage or destroy the inherent molecular structure of the feed. The cutting-edge and advanced research tool of synchrotron light (which is a million times brighter than sunlight) can be used to explore the inherent structure of biological tissue at cellular and molecular levels at ultra-high spatial resolutions. In conclusion, the use of recently developed bioanalytical techniques based on synchrotron radiation along with common research techniques is leading to dramatic advances in animal feed and nutritional research.展开更多
Cancer therapy is facing challenges.Since current theory could not have a breakthrough,we ought to find a new way to conquer cancer by exploring the emerging theory in cancer therapy.The complexity science,emerging in...Cancer therapy is facing challenges.Since current theory could not have a breakthrough,we ought to find a new way to conquer cancer by exploring the emerging theory in cancer therapy.The complexity science,emerging in the 1980s,is the new stage of the system science development.It raises a series of transformation from humanities to natural science.Dissipative structure theory as a major science of complexity science,when applied to medical field,probable provide opportunity and inspiration referring to treatment.Dissipative structure theory,in brief,claims that a dissipative structure transform chaos to relatively stable non-equilibrium state through non-equilibrium phase transition.From the microscopic order,cancer composed by tumor cells is a dissipative structure,whose external environment is the human body.From the macroscopic order,the human body is a dissipative structure,whose external environment is the natural and social environment.The reason for tumor occurrence and progression is relatively non-equilibrium disrupted and negative entropy is not enough to correct high positive entropy.Survival with the tumor is to enhance negative entropy to resist highly positive entropy and then build a new relative non-equilibrium state.Innovative angle from the theory may enlighten us make the better use of dissipative structure theory in clinical cancer therapy.展开更多
Given the complex clinical situations and the dynamic nature of nursing, the greatest challenge for nursing educators is performing objective evaluation of students’ clinical competence. The Objective Structured Clin...Given the complex clinical situations and the dynamic nature of nursing, the greatest challenge for nursing educators is performing objective evaluation of students’ clinical competence. The Objective Structured Clinical Evaluation (OSCE) is designed to address this challenge and it has been widely used in nursing education. However, its implementation in nursing education in Taiwan has been limited. Accordingly, a quasi-experimental design was utilized to examine students’ clinical performance and stress levels using a 12-station OSCE assessment. Further, we investigated the inter-rater reliability and internal consistency of the OSCE. After controlling for scores of clinical performance, overall differences in pre- and post-practicum stress in the OSCE group were significantly higher than in the control group (F (1, 89) = 4.89, p = 0.03). There was no group effect on practicum performance after controlling for grade point average (F (1, 89) = 2.69, p = 0.14). Cronbach’s alpha for 12 OSCE stations ranged from 0.22 to 0.80 and inter-rater reliability for all 12 stations showed Pearson’s r ranging between 0.76 and 1.00. Cohen’s kappa ranged from 0.70 to 1.00展开更多
This paper will apply a politically oriented description-critique paradigm developed from the works of Whitehall and Grewell that offers a way to examine works of popular culture, particularly Mars-based science ficti...This paper will apply a politically oriented description-critique paradigm developed from the works of Whitehall and Grewell that offers a way to examine works of popular culture, particularly Mars-based science fiction films. Because of the unique nature of these films, primarily which they are set in a future and distant world, they allow us to explore the socio-political landscape in which they were created from a remove that does not exist in "real-world" based works. Specifically we will be examining the governing power (in any particular Mars-based science fiction film) that might be either wielded by business interests or governmental interests. Although it is possible to have both a strong government and a strong business in a society, in many Mars-based science fiction films, government and business seem to represent two sides of a continuum. The stronger the business power structure in the film, the weaker the governmental power structure, and vice-versa.展开更多
Agricultural science and technology is a collective name of the agricultural science information and agricultural technology information, which belongs to different activity fields, pursuing the use of nature and laws...Agricultural science and technology is a collective name of the agricultural science information and agricultural technology information, which belongs to different activity fields, pursuing the use of nature and laws of things. In the process of transmission, it has a lot of data and pro^ams, thus, facing the audience groups of accepting different information ability, it often appears information transmission distort or misunderstanding. Information visualization design will represent a lot of agricultural science and technology information with complex structure and level, making use of the graphics relationship, by using the concise, easily browsing and searching method. How to make use of the information visualization design to solve the large capacity structure of agricultural science and technology information is the content that this paper analyzes.展开更多
Sommerfeld’s fundamental fine-structure constant α once more gives reason to be amazed. This comment is a Chapter of a publication in preparation dealing mainly with golden ratio signature behind Preston Guynn’s fa...Sommerfeld’s fundamental fine-structure constant α once more gives reason to be amazed. This comment is a Chapter of a publication in preparation dealing mainly with golden ratio signature behind Preston Guynn’s famous matter/space approach. As a result we present a relation of α to the galactic velocity , mediated by the circle constant π, which points to an omnipresent importance of this constant and its intrinsic reciprocity pecularity: α ≈ π<sup>2</sup>|β<sub>g</sub>| respectively . The designation fine-structure constant should be replaced simply by Sommerfeld’s constant. We present golden mean-based approximations for α as well as for electron’s charge and mass and connect the word average value of interaction coupling constant α<sub>s</sub>(m<sub>z</sub>) with |β<sub>g</sub>|.展开更多
International and domestic circumstances have led to new opportunities and higher requirements for the development of geographic science in China.In this paper,we propose a modified disciplinary structure for geograph...International and domestic circumstances have led to new opportunities and higher requirements for the development of geographic science in China.In this paper,we propose a modified disciplinary structure for geographic science in China in the new era.Geographic science in China can be categorized into four secondary disciplines,i.e.,integrated geography,physical geography,human geography,and information geography,according to the current situation and expected trends.The tertiary disciplines under each secondary discipline are nearly fully developed,and a few quaternary disciplines under the tertiary disciplines are widely accepted and used in China.We hope this new disciplinary structure can play a breakthrough role in improving the branches of geographic science,promoting the development of emerging disciplines under the framework of geographic science,and supporting national and international development strategies in the new era.展开更多
This paper clearly defines the concepts of the national competitiveness,the national S&T competitiveness,and the national S&T competitiveness structure.It develops an evaluation framework with three dimensions...This paper clearly defines the concepts of the national competitiveness,the national S&T competitiveness,and the national S&T competitiveness structure.It develops an evaluation framework with three dimensions:the national S&T competitive potential,the national S&T competitive strength and the national S&T competitive effectiveness.This paper proposes a structure analysis method and depicts the national S&T competitiveness structure of 35 countries in an empirical research.Apart from the definitions and the structure analysis method,this paper mainly draws the following conclusions:(1)In the one-dimensional national S&T competitiveness structure,the top 5 countries were all developed countries in 2015,while the developing countries generally performed better than developed countries considering the average annual growth rate of the national S&T competitiveness index.The 35 countries are clustered into 4 categories using the two-dimensional structure analysis method.For example,based on the ranking of the national S&T competitive strength index and the national S&T competitive effectiveness index of the 35 countries in 2015,the 35 countries are clustered into four categories:high-strength and higheffectiveness,low-strength and high-effectiveness,low-strength and low-effectiveness,and high-strength and low-effectiveness.(2)To a large extent,there is a significant correlation between the national S&T competitiveness index score and the GDP per capita value.And to a certain extent,there is some correlation between the national S&T competitiveness index score and the GDP value.Moreover,under the background of strength and effectiveness combination,or under the background of strength and potential combination,the national S&T competitiveness structure and GDP or GDP per capita show significant relationship.展开更多
We investigate the effects of B2O3 addition on structural and magnetic properties of hard magnetic BaFe12O19 particles. The conventional solid state reaction method is used as the synthesis route. Single phase BaFe12O...We investigate the effects of B2O3 addition on structural and magnetic properties of hard magnetic BaFe12O19 particles. The conventional solid state reaction method is used as the synthesis route. Single phase BaFe12O19 could be synthesized with very small amounts of B2O3 addition and with calcination at low temperatures (850°C) in short times (1 h). B2O3 addition also improves the magnetic parameters significantly. Remanence magnetization and specific magnetization at 1.5 T increase by ~40% in magnitude although no significant variations on coercivity is observed.展开更多
We prepare the gallium oxide (β-Ga2O3) nanomaterials from gallium and oxygen by thermal evaporation in the argon atmosphere and research their oxygen sensing under UV illumination with different oxygen pressures. X...We prepare the gallium oxide (β-Ga2O3) nanomaterials from gallium and oxygen by thermal evaporation in the argon atmosphere and research their oxygen sensing under UV illumination with different oxygen pressures. X-ray diffraction reveals that the synthesized product is monoclinic gallium oxide, it is further confirmed by electron diffraction of transmission electron microscope, and its morphology through the observation using scanning electron microscope reveals thatβ-Ga2O3 nanobelts with a breadth less than lOOnm and length of severai micrometers are synthesized under low oxygen pressure, while the nano/microbelts are synthesized under high oxygen pressure. Room-temperature oxygen sensing is tested under at 254 nm illumination and it is found that the current decreases quickly first and then slowly with oxygen pressure from low to high.展开更多
Meta-analytic structural equation modeling is a new research field which can help to explain the relationship between a group of variables in several studies by testing structural equation modeling.However,this method...Meta-analytic structural equation modeling is a new research field which can help to explain the relationship between a group of variables in several studies by testing structural equation modeling.However,this methodology is still not very popular in many countries and researchers due to lack of promotion.This report aim s to giv e a primer on the principle of m eta-analytic structural equation modeling and provid e a reference for subsequent researchers to conduct m eta-analytic structural equation modeling analysis.展开更多
文摘With the purpose to understand better the role of information not only in communication systems,but actually in our environmental reality,this paper presented the model of Universal Triangle of Reality,composed by Matter,Energy and Information,as fundamental constitutive components of this reality.Arguments coming from the field of physics,both at the cosmic and microparticles scale are presented,showing undoubtable conclusions that information is a fundamental component of reality in our material world.At the cosmic level,where the unusual high concentration of mass in the black holes constitutes a special state of matter,suitable for analysis of their special properties,the problem of the conservation principle of information is discussed.At the quantum level,the special unusual characteristics derived from the non-localization principle are also highlighted,together with information-involved problems and solutions.The Universal Triangle of Reality in the living systems reveals the high role of the involved information,both as the informational common organization on the entire evolution scale,and as the info-dynamics processes inside of own structure and resulted from interaction with the environment.The relevant advances in the approaching and understanding of the functionality of the living systems from informational point of view are highlighted,showing the high contribution of information concepts in understanding/solving of various older/recent problems in philosophy,neuroscience/neurology/psychiatry,neuro-physics/neuropsychology/behavior sciences,geriatrics/gerontology,biology and life sciences.
文摘Based on the development of the non-governmental enterprises of science and technology in the past twenty years, this paper applied an interpretive structure model (ISM) to make a research on the regular development pattern of these enterprises and to probe into the interior development mechanism theoretically. The studying results supply ideas underlying the scientific decision for the governments at all levels and show the direction of the development of the non-governmental enterprises of science and technology in the future.
文摘In the past decades,a number of researchers have tried hard to identify the move-step structure of different sections in research articles(RAs)from various disciplines.However,there is a very few amount of previous studies conducted on the move-step structure of the Introduction section of English medical science research articles(MSRAs)written by Chinese researchers published in international journals.In order to fill this gap,the present study aims to identify the moves,steps,and their structure of the Introduction section of English MSRAs written by Chinese researchers at Zunyi Medical University(ZMU)published in international journals.To create the target corpus of the present study,30 Introductions were purposively selected from 25 international medical science journals,which were published from 2007 to 2015.It is worth noting that all the authors are restricted to Chinese researchers only and at least one author must come from ZMU.The framework of Kanoksilapatham’s(2005)was adopted for the move-step analysis in the present study.The results demonstrated that these Introduction sections were generally written with three moves following the selected framework.In addition,there were two new steps that occurred in the Introduction section of these English MSRAs.In conclusion,the findings of the present study might provide a guideline for the research who plan to write English MSRAs for international articles more effectively.Moreover,the findings may provide valuable information for academic writing textbook designers as well.
基金Funding Sources:Marine 863 Project (No.2009AA093401)Projects of the National Natural Science Foundation of China (Nos.41072152,90814011 and 41190072)
文摘The fields of structural geology and tectonics have witnessed great progress over the last decade and are poised for further expansion in the future. One of the significant breakthroughs is the establishment of the 'Beyond Plate Tectonics Theory' where a combination of conceptual models and numerical modeling on plume tectonics and plate tectonics has enabled new insights into the structural and tectonic architecture and processes in the deep interior and deep sea. This paper synthesizes developments of structural geology and tectonics from a macroscopic perspective in deep interior and deep sea. Four key techniques are also reviewed: satellite altimetry for surface structures in deep-sea multi-beam sea-floor mapping; tomography for tectonics of the deep interior; diverse modeling approaches and software for unfolding dynamic evolution; and techniques for HT/HP experiments on material rheology and in situ component measurements.
文摘The effect of In composition on two-dimensional electron gas in wurtzite AlGaN/InGaN heterostructures is theoretically investigated. The sheet carrier density is shown to increase nearly linearly with In mole fraction x, due to the increase in the polarization charge at the AlGaN/InGaN interface. The electron sheet density is enhanced with the doping in the AlGaN layer. The sheet carrier density is as high as 3.7×1013 cm^-2 at the donor density of 10×1018 cm^-3 for the HEMT structure with x=0.3. The contribution of additional donor density on the electron sheet density is nearly independent of the In mole fraction.
文摘The invention and development of new research concepts, novel methodologies, and novel bioanalytical techniques are essential in advancing the animal sciences, which include feed and nutrition science. This article introduces a novel approach that shows the potential of advanced synchrotron-based bioanalytical technology for studying the effects of molecular structural changes in feeds induced by various treatments (e.g., genetic modification, gene silencing, heat-related feed processing, biofuel processing) in relation to nutrient digestion and absorption in animals. Advanced techniques based on synchrotron radiation (e.g., synchrotron radiation infrared microspectroscopy (SR-IMS) and synchrotron radiation X-ray techniques) have been developed as a fast, noninvasive, bioanalytical technology that, unlike traditional wet chemistry methods, does not damage or destroy the inherent molecular structure of the feed. The cutting-edge and advanced research tool of synchrotron light (which is a million times brighter than sunlight) can be used to explore the inherent structure of biological tissue at cellular and molecular levels at ultra-high spatial resolutions. In conclusion, the use of recently developed bioanalytical techniques based on synchrotron radiation along with common research techniques is leading to dramatic advances in animal feed and nutritional research.
文摘Cancer therapy is facing challenges.Since current theory could not have a breakthrough,we ought to find a new way to conquer cancer by exploring the emerging theory in cancer therapy.The complexity science,emerging in the 1980s,is the new stage of the system science development.It raises a series of transformation from humanities to natural science.Dissipative structure theory as a major science of complexity science,when applied to medical field,probable provide opportunity and inspiration referring to treatment.Dissipative structure theory,in brief,claims that a dissipative structure transform chaos to relatively stable non-equilibrium state through non-equilibrium phase transition.From the microscopic order,cancer composed by tumor cells is a dissipative structure,whose external environment is the human body.From the macroscopic order,the human body is a dissipative structure,whose external environment is the natural and social environment.The reason for tumor occurrence and progression is relatively non-equilibrium disrupted and negative entropy is not enough to correct high positive entropy.Survival with the tumor is to enhance negative entropy to resist highly positive entropy and then build a new relative non-equilibrium state.Innovative angle from the theory may enlighten us make the better use of dissipative structure theory in clinical cancer therapy.
文摘Given the complex clinical situations and the dynamic nature of nursing, the greatest challenge for nursing educators is performing objective evaluation of students’ clinical competence. The Objective Structured Clinical Evaluation (OSCE) is designed to address this challenge and it has been widely used in nursing education. However, its implementation in nursing education in Taiwan has been limited. Accordingly, a quasi-experimental design was utilized to examine students’ clinical performance and stress levels using a 12-station OSCE assessment. Further, we investigated the inter-rater reliability and internal consistency of the OSCE. After controlling for scores of clinical performance, overall differences in pre- and post-practicum stress in the OSCE group were significantly higher than in the control group (F (1, 89) = 4.89, p = 0.03). There was no group effect on practicum performance after controlling for grade point average (F (1, 89) = 2.69, p = 0.14). Cronbach’s alpha for 12 OSCE stations ranged from 0.22 to 0.80 and inter-rater reliability for all 12 stations showed Pearson’s r ranging between 0.76 and 1.00. Cohen’s kappa ranged from 0.70 to 1.00
文摘This paper will apply a politically oriented description-critique paradigm developed from the works of Whitehall and Grewell that offers a way to examine works of popular culture, particularly Mars-based science fiction films. Because of the unique nature of these films, primarily which they are set in a future and distant world, they allow us to explore the socio-political landscape in which they were created from a remove that does not exist in "real-world" based works. Specifically we will be examining the governing power (in any particular Mars-based science fiction film) that might be either wielded by business interests or governmental interests. Although it is possible to have both a strong government and a strong business in a society, in many Mars-based science fiction films, government and business seem to represent two sides of a continuum. The stronger the business power structure in the film, the weaker the governmental power structure, and vice-versa.
文摘Agricultural science and technology is a collective name of the agricultural science information and agricultural technology information, which belongs to different activity fields, pursuing the use of nature and laws of things. In the process of transmission, it has a lot of data and pro^ams, thus, facing the audience groups of accepting different information ability, it often appears information transmission distort or misunderstanding. Information visualization design will represent a lot of agricultural science and technology information with complex structure and level, making use of the graphics relationship, by using the concise, easily browsing and searching method. How to make use of the information visualization design to solve the large capacity structure of agricultural science and technology information is the content that this paper analyzes.
文摘Sommerfeld’s fundamental fine-structure constant α once more gives reason to be amazed. This comment is a Chapter of a publication in preparation dealing mainly with golden ratio signature behind Preston Guynn’s famous matter/space approach. As a result we present a relation of α to the galactic velocity , mediated by the circle constant π, which points to an omnipresent importance of this constant and its intrinsic reciprocity pecularity: α ≈ π<sup>2</sup>|β<sub>g</sub>| respectively . The designation fine-structure constant should be replaced simply by Sommerfeld’s constant. We present golden mean-based approximations for α as well as for electron’s charge and mass and connect the word average value of interaction coupling constant α<sub>s</sub>(m<sub>z</sub>) with |β<sub>g</sub>|.
基金National Natural Science Foundation of China,No.41988101。
文摘International and domestic circumstances have led to new opportunities and higher requirements for the development of geographic science in China.In this paper,we propose a modified disciplinary structure for geographic science in China in the new era.Geographic science in China can be categorized into four secondary disciplines,i.e.,integrated geography,physical geography,human geography,and information geography,according to the current situation and expected trends.The tertiary disciplines under each secondary discipline are nearly fully developed,and a few quaternary disciplines under the tertiary disciplines are widely accepted and used in China.We hope this new disciplinary structure can play a breakthrough role in improving the branches of geographic science,promoting the development of emerging disciplines under the framework of geographic science,and supporting national and international development strategies in the new era.
基金supported the Major Project of the National Social Science Fund of China(Grant Number 18ZDA101)the National Natural Science Foundation of China(Grant Number 71874179)+1 种基金the Strategic Research and Decision Support System Construction of Chinese Academy of Sciences(Grant Number GHJ-ZLZX-2020-11)the Youth Innovation Promotion Association of Chinese Academy of Sciences(Grant Number Y201934)
文摘This paper clearly defines the concepts of the national competitiveness,the national S&T competitiveness,and the national S&T competitiveness structure.It develops an evaluation framework with three dimensions:the national S&T competitive potential,the national S&T competitive strength and the national S&T competitive effectiveness.This paper proposes a structure analysis method and depicts the national S&T competitiveness structure of 35 countries in an empirical research.Apart from the definitions and the structure analysis method,this paper mainly draws the following conclusions:(1)In the one-dimensional national S&T competitiveness structure,the top 5 countries were all developed countries in 2015,while the developing countries generally performed better than developed countries considering the average annual growth rate of the national S&T competitiveness index.The 35 countries are clustered into 4 categories using the two-dimensional structure analysis method.For example,based on the ranking of the national S&T competitive strength index and the national S&T competitive effectiveness index of the 35 countries in 2015,the 35 countries are clustered into four categories:high-strength and higheffectiveness,low-strength and high-effectiveness,low-strength and low-effectiveness,and high-strength and low-effectiveness.(2)To a large extent,there is a significant correlation between the national S&T competitiveness index score and the GDP per capita value.And to a certain extent,there is some correlation between the national S&T competitiveness index score and the GDP value.Moreover,under the background of strength and effectiveness combination,or under the background of strength and potential combination,the national S&T competitiveness structure and GDP or GDP per capita show significant relationship.
文摘We investigate the effects of B2O3 addition on structural and magnetic properties of hard magnetic BaFe12O19 particles. The conventional solid state reaction method is used as the synthesis route. Single phase BaFe12O19 could be synthesized with very small amounts of B2O3 addition and with calcination at low temperatures (850°C) in short times (1 h). B2O3 addition also improves the magnetic parameters significantly. Remanence magnetization and specific magnetization at 1.5 T increase by ~40% in magnitude although no significant variations on coercivity is observed.
文摘We prepare the gallium oxide (β-Ga2O3) nanomaterials from gallium and oxygen by thermal evaporation in the argon atmosphere and research their oxygen sensing under UV illumination with different oxygen pressures. X-ray diffraction reveals that the synthesized product is monoclinic gallium oxide, it is further confirmed by electron diffraction of transmission electron microscope, and its morphology through the observation using scanning electron microscope reveals thatβ-Ga2O3 nanobelts with a breadth less than lOOnm and length of severai micrometers are synthesized under low oxygen pressure, while the nano/microbelts are synthesized under high oxygen pressure. Room-temperature oxygen sensing is tested under at 254 nm illumination and it is found that the current decreases quickly first and then slowly with oxygen pressure from low to high.
文摘Meta-analytic structural equation modeling is a new research field which can help to explain the relationship between a group of variables in several studies by testing structural equation modeling.However,this methodology is still not very popular in many countries and researchers due to lack of promotion.This report aim s to giv e a primer on the principle of m eta-analytic structural equation modeling and provid e a reference for subsequent researchers to conduct m eta-analytic structural equation modeling analysis.