期刊文献+
共找到38,133篇文章
< 1 2 250 >
每页显示 20 50 100
Problems and Development Suggestions of Nature Education in Jiangxi Province
1
作者 Hua LI Shinan XIANG Feiping CHEN 《Meteorological and Environmental Research》 2024年第1期46-47,56,共3页
The forest coverage rate of Jiangxi Province ranks second in China.It has rich natural resources,a long history of ancient color culture and rich red culture.In the development of nature education,Jiangxi Province has... The forest coverage rate of Jiangxi Province ranks second in China.It has rich natural resources,a long history of ancient color culture and rich red culture.In the development of nature education,Jiangxi Province has great potential and advantages.This paper introduces the development conditions of nature education in Jiangxi Province,summarizes the problems existing in the development of nature education in Jiangxi Province from the aspects of the types of nature education and the construction of nature education base,such as simple content and single form,imperfect infrastructure and lack of professionals,and puts forward some suggestions on the development of nature education in Jiangxi Province. 展开更多
关键词 Jiangxi Province Nature education PROBLEM Development suggestion
下载PDF
Influencing Factors and Improvement Suggestions for Agricultural Green Development Performance:Empirical Insights from China 被引量:1
2
作者 LI Erling ZHANG Mengzhen +1 位作者 LI Ruolan DENG Qingqing 《Chinese Geographical Science》 SCIE CSCD 2023年第5期917-933,共17页
Agricultural green development is an essential direction for global sustainable agriculture.The academic literature,however,needs to place greater emphasis on studying the factors influencing agricultural green develo... Agricultural green development is an essential direction for global sustainable agriculture.The academic literature,however,needs to place greater emphasis on studying the factors influencing agricultural green development performance and how such performance can be improved.A theoretical framework for agricultural green development performance was constructed in this paper using the Super-SBM model,which considers undesirable outputs,to measure the agricultural green development performance of 330 cities at or above the prefecture level in China(excluding Tibet Autonomous Region,Hong Kong,Macao and Taiwan of China)from 2007 to2018.Furthermore,the influencing mechanism of agricultural green development performance was then analyzed using a spatial econometric model.The results show that:1)from 2007 to 2018,China’s agricultural green development performance experienced three stages of evolution:‘rise,decline and rise’.2)The regions with high performance agricultural green development are mainly distributed in eastern China,northeastern China,and southern Qinghai Province.3)The agricultural economic level,industrialization process,and labor quality play significant roles in promoting local agricultural green development performance,while such performance is obviously inhibited by the openness level and the government’s environmental regulations.Local agricultural green development performance is significant inhibited by the agricultural economic level and accelerated industrialization process in neighboring cities,while significantly promoted by the agricultural industrial structure in neighboring cities.Some suggestions for improving agricultural green development performance are proposed based on these research results,which can provide scientific references for promoting sustainable agriculture. 展开更多
关键词 agricultural green development performance influencing factors improvement suggestions China
下载PDF
Analysis of Investigation on Ebian Spotted Cattle and Suggestions
3
作者 Zhaohua LI Yi SHI +7 位作者 Fang HE Min CHEN Jun YI Jia GAN Donghui FANG Yueda AGUO Xiaodong DENG Wei WANG 《Agricultural Biotechnology》 CAS 2023年第3期58-60,共3页
Ebian spotted cattle has the ability to adapt to the local natural ecological environment,and is one of the excellent local cattle breeds in Sichuan.Ebian spotted cattle is a breed of cattle for both service and meat ... Ebian spotted cattle has the ability to adapt to the local natural ecological environment,and is one of the excellent local cattle breeds in Sichuan.Ebian spotted cattle is a breed of cattle for both service and meat use and formed through long-term natural selection and artificial selection.Because of the weak development and utilization of this breed,the economic benefits of excellent breeds have not been fully brought into play,and farmers'enthusiasm in breeding is poor,so that the number of Ebian spotted cattle has reduced year by year.In order to strengthen the protection,development and utilization of Ebian spotted cattle as a local excellent breed,combined with the third national survey of livestock and poultry genetic resources in 2021,Ebian spotted cattle was investigated,and a comprehensive,scientific and objective analysis of its population numbers was conducted.Besides,reasonable suggestions were put forward. 展开更多
关键词 Ebian Ebian spotted cattle Local fine varieties Quantity ANALYSIS suggestions
下载PDF
Introduction and Protection Suggestions of Biodiversity
4
作者 LI Liandi WANG Wei +3 位作者 LIU Xinyu SHI Lijuan ZHANG Shuzi REN Qiwen 《Journal of Landscape Research》 2023年第2期71-76,共6页
Through the introduction of the concept,content,conservation significance and species value of biodiversity,the cognition of the research content,analysis methods and research directions of biodiversity was deepened.I... Through the introduction of the concept,content,conservation significance and species value of biodiversity,the cognition of the research content,analysis methods and research directions of biodiversity was deepened.In view of the problems faced by biodiversity conservation at present,such as the accelerated disappearance of species,the unsound protection regulation system,the irrational spatial pattern of species protection,and the lack of long-term follow-up research,specific improvement suggestions were put forward,and have a positive guiding significance for future biodiversity conservation. 展开更多
关键词 BIODIVERSITY VALUE PROBLEMS Protection suggestions
下载PDF
Some Suggestions for College Students to Improve Listening
5
作者 苗琴 《海外英语》 2014年第7X期85-87,共3页
Language is the tool of communication. English is a compulsory course for every student. English listening, as an essential part of English learning, is an effective way to obtain new information. But for many student... Language is the tool of communication. English is a compulsory course for every student. English listening, as an essential part of English learning, is an effective way to obtain new information. But for many students, the most difficult part for them is listening. The paper aims to give some suggestions to the college English learners and to help them to improve their listening comprehension abilities. Such as: to strengthen language knowledge, to build up self-confidence, to use listening strategies, to learn western culture, and to listen extensively. 展开更多
关键词 ENGLISH LISTENING SOME suggestions IMPROVING liste
下载PDF
The Problems and Suggestions in Expanding the Vocabulary for College Students
6
作者 张世群 《成都大学学报(社会科学版)》 2005年第F09期87-88,共2页
Vocabulary plays a very important role in learning English. Having a large vocabulary is undeniable necessary, but the important thing is that proper approaches should be adopted in English learning. This paper focuse... Vocabulary plays a very important role in learning English. Having a large vocabulary is undeniable necessary, but the important thing is that proper approaches should be adopted in English learning. This paper focuses on the analyses of the students’ problems in vocabulary learning process, and gives some suggestions to our students so as to help them expand their vocabulary. 展开更多
关键词 高校 英语教学 词汇教学 教学方法
下载PDF
Suggestions on How to Learn English at College
7
作者 周成 《科技信息》 2009年第31期I0201-I0201,共1页
Many students don't know how to learn English at college.Without a goal in life and unable to manage their time,they are likely to idle away their youth.This paper intends to offer some suggestions to students on ... Many students don't know how to learn English at college.Without a goal in life and unable to manage their time,they are likely to idle away their youth.This paper intends to offer some suggestions to students on how to learn English at college,and hopefully they will experience the satisfaction and pleasure of learning English. 展开更多
关键词 英语学习 学习方法 高校 英语对话
下载PDF
Suggestions on Forest Ecological Compensation—Taking Mudanjiang City as an Example 被引量:2
8
作者 Li Ying Zhang Zheng +2 位作者 Cui Li-juan Siji K-Maunel Jia Li 《Journal of Northeast Agricultural University(English Edition)》 CAS 2015年第1期66-75,共10页
The forest ecological compensation is an important factor to balance the interests of different areas for sustainable development and environment protection. Mudanjiang City in Heilongjiang Province of China is rich o... The forest ecological compensation is an important factor to balance the interests of different areas for sustainable development and environment protection. Mudanjiang City in Heilongjiang Province of China is rich of forest resources. The forestry coverage rate reached 62.3% in 2014, after forestry conservation program from 2002. The authors explored the factors impacted on forest ecological compensation in Mudanjiang City, which was a demonstration as a case study, through experts' evaluation scores and AHP methodology to analyze the forest ecological compensation factors and lay the foundation for the establishment of ecological compensation mechanism. At the same time, we provided an example to explore the effective way and speed up the establishment of ecological compensation mechanism. The study found that the main factors that determined forest ecological compensation in Mudanjiang City were ecology and natural resources. Based on the analyses, some suggestions were put forward to promote the mechanism in a sustainable way. 展开更多
关键词 FOREST ecological compensation ecological factor AHP suggestION
下载PDF
Status and Suggestions of the Pesticide Use in the Protected Vegetable Fields in Shandong Province 被引量:2
9
作者 Bo ZHANG Yan LI +4 位作者 Xinhao GAO Changsong LI Junshan QI Yueli ZHANG Wei ZHAO 《Asian Agricultural Research》 2013年第4期117-120,123,共5页
This paper briefly introduced the issues of food safety and environmental pollution caused by pesticide residues in protected vegetables, discussed the status and problems of pesticide use in the protected vegetables ... This paper briefly introduced the issues of food safety and environmental pollution caused by pesticide residues in protected vegetables, discussed the status and problems of pesticide use in the protected vegetables in Shandong Province, and analyzed the main factors leading to the pesticide residues, including the low education of most farmers, lack of correct identification of diseases and insect pests, use of pesticides based on personal experience, pesticide preparation by bare hands, large dose of pesticide, frequent application, pesticide spraying without protection, uneven spraying, leakage of pesticide from the sprayers, etc.. Finally, based on the vegetable planting features and advantages in Shandong Province, some suggestions were proposed for references, such as, to enhance the monitoring of pesticide residue, to improve the educational level of farmers and to scentifically use the pesticide. 展开更多
关键词 Protected VEGETABLES USE of PESTICIDE suggestions
下载PDF
Current Plant Landscaping in Southern Gardens and Suggestions for the Optimized Configuration 被引量:1
10
作者 LUO Qiang 《Journal of Landscape Research》 2014年第5期26-27,30,共3页
Abundant lands of China such as Suzhou, Hangzhou, Sichuan and Chongqing are all located in the basin of the Yangtze River, and subtropical evergreen broad-leaved forest belt, enjoy mild climate, sufficient rainfall, r... Abundant lands of China such as Suzhou, Hangzhou, Sichuan and Chongqing are all located in the basin of the Yangtze River, and subtropical evergreen broad-leaved forest belt, enjoy mild climate, sufficient rainfall, rich ornamental plant resources and diversifi ed landscaping techniques. In the long-term landscaping practices, plant furnishing arts characterized by diversifi ed layer division, elegant styles, delicate and vivid images have been formed, but are still limited in combination of plant species and selection of varieties. In accordance with personal experience in plant landscaping in recent years, the author provided a few suggestions for the optimized confi guration of plant landscapes in southern regions. 展开更多
关键词 Southern gardens Plant furnishing OPTIMIZATION PRACTICE suggestION
下载PDF
Application status,problems and suggestions of artificial intelligence in medical field 被引量:53
11
作者 王海星 田雪晴 +3 位作者 游茂 陆雪秋 顾泽龙 程龙 《卫生软科学》 2018年第5期3-5,9,共4页
介绍了新一代人工智能应用发展的背景,梳理了人工智能在医学影像、辅助诊断、健康管理、疾病预 测、药物研发领域中的应用现状,从数据、算法、主体责任、法律法规、评估标准、人才保障方面分析了人工 智能在医疗领域应用中的问题与挑战... 介绍了新一代人工智能应用发展的背景,梳理了人工智能在医学影像、辅助诊断、健康管理、疾病预 测、药物研发领域中的应用现状,从数据、算法、主体责任、法律法规、评估标准、人才保障方面分析了人工 智能在医疗领域应用中的问题与挑战,并从行业整体发展的角度出发,对医学人工智能的应用发展提出相关建议. 展开更多
关键词 人工智能 健康医疗大数据 问题与建议
下载PDF
Development Stage and Evolution Cause of European Union Agriculture and Suggestions for Chinese Agricultural Development 被引量:1
12
作者 Yawen WANG 《Asian Agricultural Research》 2017年第6期24-29,34,共7页
Agriculture is a basic industry related to national economy and people’s livelihood,and is also the cornerstone of national economic development. European Union(EU) is the second largest exporter of agricultural prod... Agriculture is a basic industry related to national economy and people’s livelihood,and is also the cornerstone of national economic development. European Union(EU) is the second largest exporter of agricultural products in the world,and its agricultural production change has international influence. In this paper,starting from two angles of EU agricultural development scale and target,development stage of its agricultural production is explored,and development and evolution causes of EU agriculture are analyzed: efficiency and benefit targets cause change of EU agricultural management model; change of agricultural product supply-demand pattern leads the evolution of EU agricultural development idea; the reflection of agricultural development target impels the transformation of EU agricultural development. On this basis,the below conclusions are obtained: agricultural development could evolve according to the changes of economic and social conditions; it is a necessary requirement of promoting internal market stability and international market harmony to actively use agricultural support policies adapting to agricultural development at each stage; it is an important measurement of impelling agricultural modernization process to promote innovation of agricultural management model and development of market integration; it is an inevitable road of realizing sustainable development of agriculture to develop ecological agriculture and emphasize equal development of agriculture and countryside. On this basis,it could provide the reference for agricultural development of China based on EU agricultural development experience. 展开更多
关键词 EU agriculture Agricultural subsidy policy Agricultural development stage suggestions
下载PDF
Suggestions on English Vocabulary Knowledge Acquisition for Vocational College Students
13
作者 刘源 《英语广场(学术研究)》 2012年第8期70-72,共3页
Vocabulary,as one of the fundamental aspects of language,is vital for communication and language learning.Vocational college students should do their best to master the basic 2,000 words after entering college,and the... Vocabulary,as one of the fundamental aspects of language,is vital for communication and language learning.Vocational college students should do their best to master the basic 2,000 words after entering college,and then concentrate on academic and technical vocabulary.Meanwhile,the teachers can do many things to help the students enlarge their vocabulary.This thesis provides suggestions on vocabulary acquisition for teachers and learners. 展开更多
关键词 vocabulary acquisition suggestions vocational college students
下载PDF
The present situation and suggestions about the study of flax germplasm resource in China 被引量:1
14
作者 WANG Yu-fu 《Journal of Life Sciences》 2008年第1期67-71,81,共6页
The present situation and the problems about the conservation and evaluation of flax germplasm resources and the application of biotechnology in the study of flax germplasm in China were discussed and some suggestions... The present situation and the problems about the conservation and evaluation of flax germplasm resources and the application of biotechnology in the study of flax germplasm in China were discussed and some suggestions were put forward in the paper. 展开更多
关键词 FLAX GERMPLASM CONSERVATION evaluation suggestION
下载PDF
Present Situations and Suggestions for Large-scale Development of Chenopodium quinoa Willd. 被引量:1
15
作者 Wei LU Xinyu WANG +4 位作者 Yu ZHAO Ming GUO Meiyan PEI Zhimin WEI Chuan LU 《Asian Agricultural Research》 2021年第3期14-16,共3页
In this paper,based on the study of Chenopodium quinoa Willd.planting,it is concluded that the current situations of large-scale development of C.quinoa Willd.include the following four aspects:first,the research on C... In this paper,based on the study of Chenopodium quinoa Willd.planting,it is concluded that the current situations of large-scale development of C.quinoa Willd.include the following four aspects:first,the research on C.quinoa Willd.varieties needs to be strengthened;second,it is insufficient to master the training environment and cultivation techniques;third,the large-scale planting of C.quinoa Willd.is not enough;fourth,the degree of mechanization of C.quinoa Willd.planting is not enough.In view of the above situation,this paper puts forward the following effective suggestions to strengthen the large-scale development of C.quinoa Willd.:the first is to increase the investment in C.quinoa Willd.variety research;the second is to strengthen the analysis of introduction and screening of C.quinoa Willd.varieties;the third is to study the best planting environment and cultivation techniques of C.quinoa Willd.;the fourth is to increase the scale of mechanized production of C.quinoa Willd.;the fifth is to increase the research and development of C.quinoa Willd.related products and their deep processing technology. 展开更多
关键词 Chenopodium quinoa Willd. Large-scale development Present situations suggestions
下载PDF
Suggestions on the Effective Development of Shale Gas in China 被引量:2
16
作者 Cao Yan Yang Kefeng +1 位作者 Jing Keyao Hu Yan 《China Oil & Gas》 CAS 2018年第4期18-25,共8页
Shale gas is a practical resource with great potential that could be economically explored and developed in the near future. It has been commercially developed in North America and other places. Featuring a vast distr... Shale gas is a practical resource with great potential that could be economically explored and developed in the near future. It has been commercially developed in North America and other places. Featuring a vast distribution, a low abundance,unfavorable reservoir conditions, ultra-low permeability and a fast production decline, shale gas is more difficult to develop than conventional natural gas, as it needs advanced drilling and completion technology to develop. During the early stage of shale gas exploration and development, the United States offered enterprises necessary incentives such as tax reductions and exemptions and subsidies to achieve sustainable shale gas development and encourage technological progresses. By comparing the state of China's shale gas development with that of the US' in terms of geological conditions, production technology,market price, tax relief, subsidy periods and amount, this paper intends to put forward related suggestions for the effective development of shale gas according to the current status of development. 展开更多
关键词 Unconventional resource Shale gas Effective development Subsidy period SUBSIDY suggestION
下载PDF
Compilation of Emission Inventory of Air Pollution Sources in Beijing and Suggestions on Emission Reduction Policies 被引量:1
17
作者 Yunyan LI Peng DI 《Meteorological and Environmental Research》 CAS 2021年第6期48-52,共5页
By establishing emission inventory of air pollution sources in Beijing,and classifying and compiling the pollutant types and corresponding pollution source data in more detail,it could provide the reference for studyi... By establishing emission inventory of air pollution sources in Beijing,and classifying and compiling the pollutant types and corresponding pollution source data in more detail,it could provide the reference for studying causes of haze and related policy impact assessment in Beijing.In this paper,selecting relevant data published in the Beijing Statistical Yearbook,referring to emission coefficients in the technical guidelines for the preparation of various pollution sources,and combining characteristics of energy consumption in Beijing,emission inventory of air pollution sources in six parts is established:thermal power plant,industrial combustion source(by industry),technological process source(by product variety),motor vehicle,building construction and residents life,and the contribution rate of each part to air pollutants is given.Finally,policy suggestions for haze control in Beijing are put forward. 展开更多
关键词 Air pollutant Emission source Emission inventory Policy suggestion
下载PDF
A Review on Researches of Active Tectonics—History,Progress and Suggestions 被引量:3
18
作者 Deng Qidong Wen Xueze 《Earthquake Research in China》 2009年第1期1-27,共27页
This paper reviews the history and progress of research on active tectonics in China and overseas.By giving a brief introduction on the history of active tectonic research in China and other countries,the paper sums u... This paper reviews the history and progress of research on active tectonics in China and overseas.By giving a brief introduction on the history of active tectonic research in China and other countries,the paper sums up the process and development of quantitative investigation of active tectonics since the 1980s.The focus is on the main efforts and progress made in China on certain aspects of research,such as basic surveys and applied investigation of active tectonics,the study of theories related to regional active tectonics and their kinematics and geodynamics,surveys on coupling relations between deep and shallow structures,active fault surveys and prospecting and seismic hazard assessment in urban areas,as well as the efforts made using Quaternary geochronology.Furthermore,the paper looks back on Chinese quantitative investigation of active tectonics in China and sums up cognitions derived from studies on the determination of several basic and measurable parameters of active tectonics.These parameters include the length of fault and fault segmentation,coseismic slip and cumulative slip,fault slip rate,the sequence of paleoearthquake events and the time elapsed since the most recent event.At the same time,efforts and progress made in China on assessing the long-term seismic potential for active faults and evaluating the risk from potential active fault movement have been reviewed by summarizing research on developing theories,models,methods and the application of time-dependent seismic potential to probabilistic assessment,magnitude estimation for potential earthquakes on active faults,and the forecast of potential risk caused by active fault movement.Finally,in consideration of the realities and problems in the research of active tectonics in China,the authors put forward several suggestions for issues worthy of more attention for further investigation in the future. 展开更多
关键词 Active tectonics History and progress of research Quantitative investigation Problems and suggestions
下载PDF
A Survey and Suggestions on Students' Vocabulary Learning Strategiesin Senior High School
19
作者 黄璐 《海外英语》 2014年第6X期31-32,共2页
This paper is about a survey and suggestion on students’vocabulary learning strategies in senior high school.Vocabulary is one of the three elements of a language and the basic material of a language.So the vocabular... This paper is about a survey and suggestion on students’vocabulary learning strategies in senior high school.Vocabulary is one of the three elements of a language and the basic material of a language.So the vocabulary learning in English is especially important.In order to help the students to have a better understanding of the significance of language and lay a solid foundation for deep vocabulary acquisition,it is necessary for teachers to find effective ways to learn English vocabulary.So in this paper the author hopes to find what the vocabulary learning strategies the students have used through the survey and give more effective learning strategies according to the available English vocabulary learning strategies. 展开更多
关键词 VOCABULARY learning STRATEGIES a SURVEY suggestION
下载PDF
Some Suggestions on Teaching Grammar in Junior Middle School
20
作者 董传飚 《海外英语》 2010年第4X期37-39,共3页
Teaching grammar is one of the key links in English teaching.At present,not understanding morphology and syntax correctly causes some students to gradually lose self-confidence in learning English.Now the Communicativ... Teaching grammar is one of the key links in English teaching.At present,not understanding morphology and syntax correctly causes some students to gradually lose self-confidence in learning English.Now the Communicative Teaching Approach is being used more and more widely.Naturally,to train students' ability of communicating and expressing themselves becomes the focal point of teaching.First of all,the author presents the present situation of grammar teaching in Junior Middle Schools.Then the author gives some suggestions on how to deal with these problems.The author's aims are to help teachers,through these methods,improve traditional grammar teaching modes,arouse students' interests in learning English grammar,and enhance their ability to use grammar rules. 展开更多
关键词 GRAMMAR TEACHING the COMMUNICATIVE TEACHING approach suggestions
下载PDF
上一页 1 2 250 下一页 到第
使用帮助 返回顶部