In the context of ecological civilization construction in the new era,the development of highquality cities places more emphasis on resource integration and multi-party coordination.The exploration of the concept of g...In the context of ecological civilization construction in the new era,the development of highquality cities places more emphasis on resource integration and multi-party coordination.The exploration of the concept of green complex has proposed a new path for urban double repair and urban renewal.The green complex centered on industrial heritage has achieved the combination of industrial heritage activation and utilization with natural ecosystem restoration,which is of great significance for sustainable and healthy urban development.Based on the landscape design of the main exhibition area of the 11th Jiangsu Garden Expo,the application of green complex in industrial heritage protection is explored.By integrating industrial heritage relics,green activity spaces,urban public resources,and natural environment in the form of green complex,it promotes the coordinated development of various functions and creates a new type of green inclusive city.展开更多
With the current trend of globalization, the social economy of all countries in the world has made great progress. However, in the process of social and economic development, the problem of increasingly serious enviro...With the current trend of globalization, the social economy of all countries in the world has made great progress. However, in the process of social and economic development, the problem of increasingly serious environmental pollution has followed. Therefore, environmental protection, as an important prerequisite for the sustainable development of social economy, has received extensive attention from all countries in the world. Therefore, to infiltrate the practice of environmental protection education into primary school science teaching, science teachers should adopt diversified scientific environmental protection education strategies according to the teaching objectives and students scientific learning level so that primary school students can have good environmental protection awareness, cultivate students scientific literacy and promote their all-round development.展开更多
Online teaching has both opportunities and challenges.The main issues that are emphasized in this study is on how to grasp and adapt to the situation,strengthen training and policy incentives,establish quality assuran...Online teaching has both opportunities and challenges.The main issues that are emphasized in this study is on how to grasp and adapt to the situation,strengthen training and policy incentives,establish quality assurance supervision and inspection as well as linkage mechanism,and actively explore the reform mode.From the perspective of management,taking Baoshan University in Yunnan Province as an example,this article summarizes the practical experience of online teaching,analyzes the shortcomings of online teaching,explores the online and offline hybrid teaching,and promotes local colleges to refomi their teaching mode.展开更多
In the teaching of children, game teaching is a very effective teaching method, which can not only enable children to obtain more knowledge in games, but also effectively cultivate children's imagination and creat...In the teaching of children, game teaching is a very effective teaching method, which can not only enable children to obtain more knowledge in games, but also effectively cultivate children's imagination and creativity, which is of great help to children's growth. Using rural natural resources to enrich children's games can more effectively mobilize students' enthusiasm for learning, and link teaching with real life, which is helpful to children's growth. This paper focuses on how to use rural natural resources to enrich children's games.展开更多
This study investigates and explores the teaching of higher vocational English courses for non-English majors from the perspective of core competencies.First,it outlines the current research status of core competencie...This study investigates and explores the teaching of higher vocational English courses for non-English majors from the perspective of core competencies.First,it outlines the current research status of core competencies and analyzes the national-level requirements for English core competencies.Subsequently,based on professional training objectives and curriculum standards,a questionnaire on the core competencies of English courses has been designed to understand students’perceptions and experiences regarding the development of their competencies in areas such as workplace communication,cross-cultural exchange,language thinking enhancement,and autonomous learning improvement.The survey results showed that the majority of students had a positive attitude towards the effectiveness of English courses in cultivating the aforementioned core competencies.However,some students also suggest improvements,such as increasing practical opportunities and strengthening cultural exchange.Based on this,the study further explores how to integrate the cultivation of core competencies into classroom teaching,including the use of a combination of formative and summative assessments,the design of teaching content and activities related to the workplace and cross-cultural communication,and the guidance of students to actively explore and apply their knowledge,thereby enhancing their English language application abilities.This study has certain reference value for the optimization of the higher vocational English curriculum system and the reform of teaching methods.展开更多
Curriculum-based ideological and political education is the inevitable requirement of constructing the pattern of ideological and political education in the new era.As the main leader and implementer of curriculum-bas...Curriculum-based ideological and political education is the inevitable requirement of constructing the pattern of ideological and political education in the new era.As the main leader and implementer of curriculum-based ideological and political education in vocational colleges,speciality teachers should take the fundamental task of moral education as the guidance,focus on it through curriculum,promote the organic unity of knowledge teaching,skill improvement and value guidance in the teaching process,and finally form a new ideological and political work mode in line with the requirements of“high-level vocational college and speciality”construction.At present,speciality teachers in vocational colleges have some problems in curriculum-based ideological and political education,which is mainly reflected in some speciality teachers’weak self-consciousness,poor understanding and integration ability.In order to effectively solve the problem,they have to establish the curriculum-based ideological and political education promotion mechanism led by the college Party committee,consolidate the institutional guarantee for speciality teachers in moral education,strengthen their consciousness and awareness,innovate and improve the assessment and evaluation mechanism of their dedicated education.展开更多
Copyright 2025,Hepatobiliary&Pancreatic Diseases International.All rights reserved.www.hbpdint.com,Aims and Scope Hepatobiliary&Pancreatic Diseases International publishes peerreviewed original papers,reviews(...Copyright 2025,Hepatobiliary&Pancreatic Diseases International.All rights reserved.www.hbpdint.com,Aims and Scope Hepatobiliary&Pancreatic Diseases International publishes peerreviewed original papers,reviews(meta-analysis,systematic review)and editorials concerned with clinical practice and research in the fields of hepatobiliary and pancreatic diseases.Papers cover the medical,surgical,radiological,pathological,biochemical,physiological and histological aspects of the subject areas under the headings Liver,Biliary,Pancreas,Transplantation,Research,Editorials,Review Articles,New Techniques,Clinical Images,Viewpoints and Letters to the Editor.展开更多
Hepatobiliary&Pancreatic Diseases International publishes peer-reviewed original papers,reviews(meta-analysis,systematic review)and editorials concerned with clinical practice and research in the fields of hepatob...Hepatobiliary&Pancreatic Diseases International publishes peer-reviewed original papers,reviews(meta-analysis,systematic review)and editorials concerned with clinical practice and research in the fields of hepatobiliary and pancreatic diseases.Papers cover the medical,surgical,radiological,pathological,biochemical,physiological and histological aspects of the subject areas under the headings Liver,Biliary,Pancreas,Transplantation,Research,Editorials,Review Articles,New Techniques,Clinical Images,Viewpoints and Letters to the Editor.The journal also deals with the basic sciences and experimental work.All submitted papers are reviewed by at least two referees in the field of the submitted paper.For detailed instructions concerning the submission of manuscripts,please refer to the Instructions for Authors in each issue of the journal.Full articles are available at ScienceDirect.展开更多
Hepatobiliary&Pancreatic Diseases International Copyright 2025,Hepatobiliary&Pancreatic Diseases International.All rights reserved.www.hbpdint.com.Aims and Scope Hepatobiliary&Pancreatic Diseases Internati...Hepatobiliary&Pancreatic Diseases International Copyright 2025,Hepatobiliary&Pancreatic Diseases International.All rights reserved.www.hbpdint.com.Aims and Scope Hepatobiliary&Pancreatic Diseases International publishes peer-reviewed original papers,reviews(meta-analysis,systematic review)and editorials concerned with clinical practice and research in the fields of hepatobiliary and pancreatic diseases.Papers cover the medical,surgical,radiological,pathological,biochemical,physiological and histological aspects of the subject areas under the headings Liver,Biliary,Pancreas,Transplantation,Research,Editorials,Review Articles,New Techniques,Clinical Images,Viewpoints and Letters to the Editor.The journal also deals with the basic sciences and experimental work.All submitted papers are reviewed by at least two referees in the field of the submitted paper.For detailed instructions concerning the submission of manuscripts,please refer to the Instructions for Authors in each issue of the journal.Full articles are available at ScienceDirect.展开更多
With the development of society,the overall development of various industries in our country is unprecedentedly prosperous.However,various damaging industries with the sole goal of profit have emerged,significantly re...With the development of society,the overall development of various industries in our country is unprecedentedly prosperous.However,various damaging industries with the sole goal of profit have emerged,significantly reducing people’s experience in basic needs such as food,clothing,housing,and transportation.Food analysis course is an essential primary subject established by colleges and universities to cultivate food quality and safety talents.In order to further ensure the food safety of society,this article mainly analyzes the teaching reform path of food analysis courses under the new situation.We hope the views in this article can provide guidelines for relevant workers.展开更多
EFL preservice teachers ’ research efficacy, as perceived competence to perform tasks in research, is crucial to their research engagement. This autobiographical narrative inquiry investigates the contribution of sca...EFL preservice teachers ’ research efficacy, as perceived competence to perform tasks in research, is crucial to their research engagement. This autobiographical narrative inquiry investigates the contribution of scaffolded research practice to a female EFL preservice teacher ’s research efficacy.The data were collected through conversations, notes, journals, and portfolios. The findings suggest that teacher research efficacy was pliable through scaffolded research practice. It emerged gradually over time, in different places with social and personal interaction. The factors contributing to the emerging research efficacy were: teacher educators ’ support, peers ’ support,and research participation. The study sheds light on teacher educators and EFL preservice teachers,with the intention of establishing an inquiry-based pedagogy for M.Ed. programs.展开更多
1.Introduction Eating disorders(ED)are the most common psychiatric disorders afflicting young women^1 and contribute to great detriments in psychological,social,and physical health.^(2,3)Unfortunately,ED treatments te...1.Introduction Eating disorders(ED)are the most common psychiatric disorders afflicting young women^1 and contribute to great detriments in psychological,social,and physical health.^(2,3)Unfortunately,ED treatments tend to be long lasting,intensive,and expensive.~4Additionally,individuals with ED seeking treatment use healthcare services more frequently than non-ED individu-展开更多
Most research-based fertilizer inputs proposed for small scale farmers to increase their productivity do not achieve the required results and should consider indigenous practices. This study evaluates the practices of...Most research-based fertilizer inputs proposed for small scale farmers to increase their productivity do not achieve the required results and should consider indigenous practices. This study evaluates the practices of nutrient fertilizer input by farmers and researchers and relates them to their corresponding yields and profit so as to establish the appropriateness of the practices in 13 districts of the Northern regions of Ghana. Soil nutrients assessment of Nitrogen (N), Phosphorus (P) and Potassium (K) contents used to evaluate the soil NPK status was based on previous studies. Data on fertilizer application by farmers and researchers were obtained from the Savanna Agricultural Research Institute (SARI). The amount of N, P and K fertilizer input in 13 Districts and its associated maize grain yields by both farmers (89) and researchers were calculated and compared using two-sample t-test. The t-test results indicated that average amount of fertilizer input by researchers was significantly (p < 0.05) higher than the average amount of fertilizer input by the smallholder farmers, but the high fertilizer input did not significantly (p = 0.74) increase researchers’ maize yields and profits in all 13 study districts grouped together, but there was maize increment in only eight districts. On the average, farmers from five districts applied low fertilizer and recorded low yields. However, when researchers increased quantities of fertilizer applied in these five districts, yield significantly (p < 0.05) increased. The outcome showed that smallholder farmers in these five districts could increase maize yields by 36% in the region should they adopt the maize production strategy by the researchers. The study concluded that, for best options, recommended fertilizer doses to enhance maize yields should consider district-specific farmers’ practices and soil NPK status. The study could enable better implementation of location-based nutrient recommendation in the Northern Region of Ghana.展开更多
At present, the construction of new energy sources in our country is developing rapidly. Li-ion batteries and sodium-ion batteries have the same storage mechanism. Compared with lithium-ion batteries, sodium-ion batte...At present, the construction of new energy sources in our country is developing rapidly. Li-ion batteries and sodium-ion batteries have the same storage mechanism. Compared with lithium-ion batteries, sodium-ion batteries have the advantages of low cost and abundant sodium sources. However, because the radius of sodium ions (0.102nm) is much larger than the radius of lithium ions (0.076nm), finding a host material that can stably insert/remove sodium ions in the actual application process has become the key to the application of sodium-ion batteries in new energy vehicles. Although metal oxides (cobalt oxide, iron oxide, nickel oxide, etc.) with high theoretical capacity have good application potential in sodium ion cathode materials, sodium ion batteries have poor cycle life due to large volume expansion and low electrical conductivity during the sodium conversion process;While nanostructured metal oxides and their composites (MnO2 nanocrystals, NiO/Ni/ graphene, etc.) can effectively improve the cycle stability, but their durability under high current density is poor. Therefore, it is necessary to further develop the negative electrode material of sodium ion battery with high cycle stability and durability to buffer the problems of volume expansion and conductivity reduction in the sodium conversion process.展开更多
How to generate pictures real and esthetic objects is an important subject of computer graphics. The techniques of mapping textures onto the surfaces of an object in the 3D space are efficient ap- proaches for the pur...How to generate pictures real and esthetic objects is an important subject of computer graphics. The techniques of mapping textures onto the surfaces of an object in the 3D space are efficient ap- proaches for the purpose.We developed and implemented algorithms for generating objects with appear ances stone,wood grain,ice lattice,brick,doors and windows on Apollo workstations. All the algorithms have been incorporated into the 3D geometry modelling system(GEMS)developed by the CAD Center of Tsinghua University.This paper emphasizes the wood grain and the ice lattice algorithms.展开更多
Cultures of Science was launched in September2018.The six published issues have included theoretical and empirical studies,and papers on research policy and practice in the field of science culture.All published artic...Cultures of Science was launched in September2018.The six published issues have included theoretical and empirical studies,and papers on research policy and practice in the field of science culture.All published articles are in open access on the journal's website.The journal will enter its third year of publication with its first quarterly issue of 2020.That issue will mark an important change behind the scenes.As of January 2020,SAGE Publishing will be the joint publisher of Cultures of Science,and will globally distribute the journal.Articles will continue to be in open access on the SAGE platform.The six previous issues of the journal will also be available on SAGE shortly.展开更多
The development of science popularization in China has reached a new historical stage.The growing number of science popularization workers and their enhanced awareness of norms have resulted in a significant step forw...The development of science popularization in China has reached a new historical stage.The growing number of science popularization workers and their enhanced awareness of norms have resulted in a significant step forward for science popularization.Science popularization workers are thinking about how to promote the high-quality and rapid development of science popularization and further the historical mission and social responsibilities of science popularization.As an indispensable part of the national science and technology ethics system,science popularization ethics should be an integral part of science popularization work,and research on the theories and practices of science popularization ethics has become more relevant now than ever before.展开更多
It is my great pleasure to be the invited editor of this special issue of Cultures of Science. And, as the co-editor-in-chief, I appreciate this opportunity to share my thoughts with you.It has been one year since the...It is my great pleasure to be the invited editor of this special issue of Cultures of Science. And, as the co-editor-in-chief, I appreciate this opportunity to share my thoughts with you.It has been one year since the inaugural issue of Cultures of Science was launched in 2018. Four issues have since included theoretical and empirical studies and papers on research policy and practice in the field of science culture. We have covered science culture, science education, science communication, public understanding of science, the cultural authority of science, and science and society.展开更多
文摘In the context of ecological civilization construction in the new era,the development of highquality cities places more emphasis on resource integration and multi-party coordination.The exploration of the concept of green complex has proposed a new path for urban double repair and urban renewal.The green complex centered on industrial heritage has achieved the combination of industrial heritage activation and utilization with natural ecosystem restoration,which is of great significance for sustainable and healthy urban development.Based on the landscape design of the main exhibition area of the 11th Jiangsu Garden Expo,the application of green complex in industrial heritage protection is explored.By integrating industrial heritage relics,green activity spaces,urban public resources,and natural environment in the form of green complex,it promotes the coordinated development of various functions and creates a new type of green inclusive city.
文摘With the current trend of globalization, the social economy of all countries in the world has made great progress. However, in the process of social and economic development, the problem of increasingly serious environmental pollution has followed. Therefore, environmental protection, as an important prerequisite for the sustainable development of social economy, has received extensive attention from all countries in the world. Therefore, to infiltrate the practice of environmental protection education into primary school science teaching, science teachers should adopt diversified scientific environmental protection education strategies according to the teaching objectives and students scientific learning level so that primary school students can have good environmental protection awareness, cultivate students scientific literacy and promote their all-round development.
文摘Online teaching has both opportunities and challenges.The main issues that are emphasized in this study is on how to grasp and adapt to the situation,strengthen training and policy incentives,establish quality assurance supervision and inspection as well as linkage mechanism,and actively explore the reform mode.From the perspective of management,taking Baoshan University in Yunnan Province as an example,this article summarizes the practical experience of online teaching,analyzes the shortcomings of online teaching,explores the online and offline hybrid teaching,and promotes local colleges to refomi their teaching mode.
文摘In the teaching of children, game teaching is a very effective teaching method, which can not only enable children to obtain more knowledge in games, but also effectively cultivate children's imagination and creativity, which is of great help to children's growth. Using rural natural resources to enrich children's games can more effectively mobilize students' enthusiasm for learning, and link teaching with real life, which is helpful to children's growth. This paper focuses on how to use rural natural resources to enrich children's games.
基金The General Subject of the 2023 Vocational College Foreign Language Education Reform Special Project of the Foreign Language Education Committee,China Vocational and Technical Education Association“Research and Practice on the Reform of the Evaluation System for Public English Teaching in Higher Vocational Education from the Perspective of Core Competencies”(WYW2023A29)。
文摘This study investigates and explores the teaching of higher vocational English courses for non-English majors from the perspective of core competencies.First,it outlines the current research status of core competencies and analyzes the national-level requirements for English core competencies.Subsequently,based on professional training objectives and curriculum standards,a questionnaire on the core competencies of English courses has been designed to understand students’perceptions and experiences regarding the development of their competencies in areas such as workplace communication,cross-cultural exchange,language thinking enhancement,and autonomous learning improvement.The survey results showed that the majority of students had a positive attitude towards the effectiveness of English courses in cultivating the aforementioned core competencies.However,some students also suggest improvements,such as increasing practical opportunities and strengthening cultural exchange.Based on this,the study further explores how to integrate the cultivation of core competencies into classroom teaching,including the use of a combination of formative and summative assessments,the design of teaching content and activities related to the workplace and cross-cultural communication,and the guidance of students to actively explore and apply their knowledge,thereby enhancing their English language application abilities.This study has certain reference value for the optimization of the higher vocational English curriculum system and the reform of teaching methods.
基金Shen Yue(1982-),female,an associate professor with master degree,teaching English in School of Applied Foreign Languages,Zhejiang Yuexiu University,Shaoxing,Zhejiang,China.Email:sy0416sy@163.com。
文摘Curriculum-based ideological and political education is the inevitable requirement of constructing the pattern of ideological and political education in the new era.As the main leader and implementer of curriculum-based ideological and political education in vocational colleges,speciality teachers should take the fundamental task of moral education as the guidance,focus on it through curriculum,promote the organic unity of knowledge teaching,skill improvement and value guidance in the teaching process,and finally form a new ideological and political work mode in line with the requirements of“high-level vocational college and speciality”construction.At present,speciality teachers in vocational colleges have some problems in curriculum-based ideological and political education,which is mainly reflected in some speciality teachers’weak self-consciousness,poor understanding and integration ability.In order to effectively solve the problem,they have to establish the curriculum-based ideological and political education promotion mechanism led by the college Party committee,consolidate the institutional guarantee for speciality teachers in moral education,strengthen their consciousness and awareness,innovate and improve the assessment and evaluation mechanism of their dedicated education.
文摘Copyright 2025,Hepatobiliary&Pancreatic Diseases International.All rights reserved.www.hbpdint.com,Aims and Scope Hepatobiliary&Pancreatic Diseases International publishes peerreviewed original papers,reviews(meta-analysis,systematic review)and editorials concerned with clinical practice and research in the fields of hepatobiliary and pancreatic diseases.Papers cover the medical,surgical,radiological,pathological,biochemical,physiological and histological aspects of the subject areas under the headings Liver,Biliary,Pancreas,Transplantation,Research,Editorials,Review Articles,New Techniques,Clinical Images,Viewpoints and Letters to the Editor.
文摘Hepatobiliary&Pancreatic Diseases International publishes peer-reviewed original papers,reviews(meta-analysis,systematic review)and editorials concerned with clinical practice and research in the fields of hepatobiliary and pancreatic diseases.Papers cover the medical,surgical,radiological,pathological,biochemical,physiological and histological aspects of the subject areas under the headings Liver,Biliary,Pancreas,Transplantation,Research,Editorials,Review Articles,New Techniques,Clinical Images,Viewpoints and Letters to the Editor.The journal also deals with the basic sciences and experimental work.All submitted papers are reviewed by at least two referees in the field of the submitted paper.For detailed instructions concerning the submission of manuscripts,please refer to the Instructions for Authors in each issue of the journal.Full articles are available at ScienceDirect.
文摘Hepatobiliary&Pancreatic Diseases International Copyright 2025,Hepatobiliary&Pancreatic Diseases International.All rights reserved.www.hbpdint.com.Aims and Scope Hepatobiliary&Pancreatic Diseases International publishes peer-reviewed original papers,reviews(meta-analysis,systematic review)and editorials concerned with clinical practice and research in the fields of hepatobiliary and pancreatic diseases.Papers cover the medical,surgical,radiological,pathological,biochemical,physiological and histological aspects of the subject areas under the headings Liver,Biliary,Pancreas,Transplantation,Research,Editorials,Review Articles,New Techniques,Clinical Images,Viewpoints and Letters to the Editor.The journal also deals with the basic sciences and experimental work.All submitted papers are reviewed by at least two referees in the field of the submitted paper.For detailed instructions concerning the submission of manuscripts,please refer to the Instructions for Authors in each issue of the journal.Full articles are available at ScienceDirect.
基金On-Campus Practical Teaching Base of Guangdong Ocean University(On-Campus Practical Training Base of Food Major,Project number:310210062204)Teaching Quality and Teaching Reform Project Construction Project of 2021 Guangdong Undergraduate Universities(Green Processing Industry College for Lingnan Specialty Fruits and Vegetables,Project number:310121062201)Teaching Quality and Teaching Reform Project Construction Project of 2022 Guangdong Undergraduate Universities(Guangdong Ocean University-Xizhilang Science and Technology Integration Practice Teaching Base,Project number:310117062201)。
文摘With the development of society,the overall development of various industries in our country is unprecedentedly prosperous.However,various damaging industries with the sole goal of profit have emerged,significantly reducing people’s experience in basic needs such as food,clothing,housing,and transportation.Food analysis course is an essential primary subject established by colleges and universities to cultivate food quality and safety talents.In order to further ensure the food safety of society,this article mainly analyzes the teaching reform path of food analysis courses under the new situation.We hope the views in this article can provide guidelines for relevant workers.
文摘EFL preservice teachers ’ research efficacy, as perceived competence to perform tasks in research, is crucial to their research engagement. This autobiographical narrative inquiry investigates the contribution of scaffolded research practice to a female EFL preservice teacher ’s research efficacy.The data were collected through conversations, notes, journals, and portfolios. The findings suggest that teacher research efficacy was pliable through scaffolded research practice. It emerged gradually over time, in different places with social and personal interaction. The factors contributing to the emerging research efficacy were: teacher educators ’ support, peers ’ support,and research participation. The study sheds light on teacher educators and EFL preservice teachers,with the intention of establishing an inquiry-based pedagogy for M.Ed. programs.
文摘1.Introduction Eating disorders(ED)are the most common psychiatric disorders afflicting young women^1 and contribute to great detriments in psychological,social,and physical health.^(2,3)Unfortunately,ED treatments tend to be long lasting,intensive,and expensive.~4Additionally,individuals with ED seeking treatment use healthcare services more frequently than non-ED individu-
文摘Most research-based fertilizer inputs proposed for small scale farmers to increase their productivity do not achieve the required results and should consider indigenous practices. This study evaluates the practices of nutrient fertilizer input by farmers and researchers and relates them to their corresponding yields and profit so as to establish the appropriateness of the practices in 13 districts of the Northern regions of Ghana. Soil nutrients assessment of Nitrogen (N), Phosphorus (P) and Potassium (K) contents used to evaluate the soil NPK status was based on previous studies. Data on fertilizer application by farmers and researchers were obtained from the Savanna Agricultural Research Institute (SARI). The amount of N, P and K fertilizer input in 13 Districts and its associated maize grain yields by both farmers (89) and researchers were calculated and compared using two-sample t-test. The t-test results indicated that average amount of fertilizer input by researchers was significantly (p < 0.05) higher than the average amount of fertilizer input by the smallholder farmers, but the high fertilizer input did not significantly (p = 0.74) increase researchers’ maize yields and profits in all 13 study districts grouped together, but there was maize increment in only eight districts. On the average, farmers from five districts applied low fertilizer and recorded low yields. However, when researchers increased quantities of fertilizer applied in these five districts, yield significantly (p < 0.05) increased. The outcome showed that smallholder farmers in these five districts could increase maize yields by 36% in the region should they adopt the maize production strategy by the researchers. The study concluded that, for best options, recommended fertilizer doses to enhance maize yields should consider district-specific farmers’ practices and soil NPK status. The study could enable better implementation of location-based nutrient recommendation in the Northern Region of Ghana.
文摘At present, the construction of new energy sources in our country is developing rapidly. Li-ion batteries and sodium-ion batteries have the same storage mechanism. Compared with lithium-ion batteries, sodium-ion batteries have the advantages of low cost and abundant sodium sources. However, because the radius of sodium ions (0.102nm) is much larger than the radius of lithium ions (0.076nm), finding a host material that can stably insert/remove sodium ions in the actual application process has become the key to the application of sodium-ion batteries in new energy vehicles. Although metal oxides (cobalt oxide, iron oxide, nickel oxide, etc.) with high theoretical capacity have good application potential in sodium ion cathode materials, sodium ion batteries have poor cycle life due to large volume expansion and low electrical conductivity during the sodium conversion process;While nanostructured metal oxides and their composites (MnO2 nanocrystals, NiO/Ni/ graphene, etc.) can effectively improve the cycle stability, but their durability under high current density is poor. Therefore, it is necessary to further develop the negative electrode material of sodium ion battery with high cycle stability and durability to buffer the problems of volume expansion and conductivity reduction in the sodium conversion process.
文摘How to generate pictures real and esthetic objects is an important subject of computer graphics. The techniques of mapping textures onto the surfaces of an object in the 3D space are efficient ap- proaches for the purpose.We developed and implemented algorithms for generating objects with appear ances stone,wood grain,ice lattice,brick,doors and windows on Apollo workstations. All the algorithms have been incorporated into the 3D geometry modelling system(GEMS)developed by the CAD Center of Tsinghua University.This paper emphasizes the wood grain and the ice lattice algorithms.
文摘Cultures of Science was launched in September2018.The six published issues have included theoretical and empirical studies,and papers on research policy and practice in the field of science culture.All published articles are in open access on the journal's website.The journal will enter its third year of publication with its first quarterly issue of 2020.That issue will mark an important change behind the scenes.As of January 2020,SAGE Publishing will be the joint publisher of Cultures of Science,and will globally distribute the journal.Articles will continue to be in open access on the SAGE platform.The six previous issues of the journal will also be available on SAGE shortly.
文摘The development of science popularization in China has reached a new historical stage.The growing number of science popularization workers and their enhanced awareness of norms have resulted in a significant step forward for science popularization.Science popularization workers are thinking about how to promote the high-quality and rapid development of science popularization and further the historical mission and social responsibilities of science popularization.As an indispensable part of the national science and technology ethics system,science popularization ethics should be an integral part of science popularization work,and research on the theories and practices of science popularization ethics has become more relevant now than ever before.
文摘It is my great pleasure to be the invited editor of this special issue of Cultures of Science. And, as the co-editor-in-chief, I appreciate this opportunity to share my thoughts with you.It has been one year since the inaugural issue of Cultures of Science was launched in 2018. Four issues have since included theoretical and empirical studies and papers on research policy and practice in the field of science culture. We have covered science culture, science education, science communication, public understanding of science, the cultural authority of science, and science and society.
