A temporary pedestrian crossing has been set up for the first time in Nanchang City to facilitate the passage of residents,which has brought great convenience to surrounding residents and students.The author made an i...A temporary pedestrian crossing has been set up for the first time in Nanchang City to facilitate the passage of residents,which has brought great convenience to surrounding residents and students.The author made an in-depth investigation on the temporary pedestrian crossing,analyzed its advantages and existing problems through field investigation,questionnaire survey,resident interview and other forms and put forward relevant suggestions by considering the current operation mode of the facilities,to provide reference for relevant departments to optimize the temporary pedestrian crossing and provide reliable and efficient solutions for other regions.展开更多
After the analysis and discussion of the problems existing in the funds management of scientific research projects in enterprises,further analysis and attribution has been made and the corresponding countermeasures an...After the analysis and discussion of the problems existing in the funds management of scientific research projects in enterprises,further analysis and attribution has been made and the corresponding countermeasures and solutions are proposed.The management should be mainly from the improvement of relevant management systems,and the establishment of communication and collaboration mechanisms with the financial department.展开更多
Land is the foundation for human survival and development,and all human social and economic activities are inseparable from the land as a space carrier.With the continuous development of China's social economy,Chi...Land is the foundation for human survival and development,and all human social and economic activities are inseparable from the land as a space carrier.With the continuous development of China's social economy,China is facing new social development needs such as urban-rural integration and rural revitalization.At the same time,China starts to attach great importance to ecology and has proposed the concept that lucid waters and lush mountains are invaluable assets.In this situation,the rational use of land resources,the optimization of land use structure and layout are also facing new challenges and problems,and more comprehensive consideration is required to make relevant optimization.Using the method of literature comparative analysis,from the conceptual connotation,basic theory,method model,and specific practice of land use structure and layout optimization,this paper analyzed and summarized the current research situations and problems,and finally came up with recommendations for the future research.展开更多
In recent ten years in China,the application research of hypobaric storage was extended to the non-freeze preservation of cooked food,fresh-cut vegetables,edible fungi and fruits,preliminary processing of growing area...In recent ten years in China,the application research of hypobaric storage was extended to the non-freeze preservation of cooked food,fresh-cut vegetables,edible fungi and fruits,preliminary processing of growing area and vacuum cold fresh chain to the cold chain breakage for horticultural products,and also to the investigation of principle and theory but the investigation results would have some evident difference. This paper will simply summarize the basic conception,principle,two withdrawing air type hypobaric storage technologies,and introduce many examples as mentioned above extending in China. This paper thinks that the master mechanism of preservation of LP for fresh horticultural products effectively inhibits the activity change of manifold enzymes,which are PAL,POD,PPO,CAT,CAD,SOD et al.,affecting the maturation and caducity of fresh horticultural products during LP storage for a short period,as a result,to reduce both risk of physiology obstacle and disease and to prolong their postharvest life; for the foreseeable future Burg's hypobaric storage technology and hypobaric short period treatment technology will play an important role in the preservation on fresh agricultural products and food preservation in storage and transportation,the preliminary processing of growing area,fresh logistics,establishing the operating platform of perishable food and high business value,fresh e-business,and fresh delivery for scattered families,establishing the operating platform of fresh-cut vegetables including edible fungi and so on in China or in the world.展开更多
Based on the investigation of the whole line of Beijing-Zhangjiakou Railway,the current situation of Beijing-Zhangjiakou Railway was recorded and analyzed by means of historical data collection,literature research,int...Based on the investigation of the whole line of Beijing-Zhangjiakou Railway,the current situation of Beijing-Zhangjiakou Railway was recorded and analyzed by means of historical data collection,literature research,interview records,field survey,camera mapping,aerial photography,3D modeling and so forth.By combing the construction process and basic composition of this railway line,and sorting out the historical data of the existing railway heritage components and the current protection and utilization and through the analysis of current situation,the main contradiction and main problems existing in the protection of this railway line were pointed out.The author believes that the main contradiction in the protection of Beijing-Zhangjiakou Railway is the contradiction between the importance of Beijing Zhangjiakou Railway as the heritage of China’s railway and the weakness of the excavation of its heritage value and protection of it.In view of the main contradiction and the problems raised,the reasons were analyzed and the corresponding solutions and protection suggestions were given.展开更多
Functional rice has functions of adjusting human physiological functions of and preventing diseases. At present,there are researches both at home and abroad about the relationship between nutritional quality and physi...Functional rice has functions of adjusting human physiological functions of and preventing diseases. At present,there are researches both at home and abroad about the relationship between nutritional quality and physiological active substances of rice and human physiological activities. Through conventional breeding,gene mutation technology,and molecular-assisted selection( MAS) technology,it is feasible to select and breed new rice varieties and plants with certain health care functions.展开更多
为了探究土壤酸杆菌研究的热点与趋势,基于Web of Science数据库,采用文献计量学方法,对世界上研究最前沿的20个研究机构、研究作者、学术期刊、学科和国家进行了文献计量学统计,进而了解土壤酸杆菌研究概况和动态。结果显示:2007—201...为了探究土壤酸杆菌研究的热点与趋势,基于Web of Science数据库,采用文献计量学方法,对世界上研究最前沿的20个研究机构、研究作者、学术期刊、学科和国家进行了文献计量学统计,进而了解土壤酸杆菌研究概况和动态。结果显示:2007—2017年土壤酸杆菌研究论文数量共1289篇;文献产出量逐年增加,2016年文献数量最高;中国、美国、德国、巴西、西班牙文献数量居世界前5位,中国文献数量最多,为423篇;中国科学院、俄罗斯科学院、南京农业大学、圣保罗大学、中国科学院大学酸杆菌文献较多;最有学术影响力的核心作者来自中国,主要核心期刊是《Microbial Ecology》、《Plos One》、《FEMS Microbial Ecology》、《Applied and Environmental Microbiology》、《Frontiers in Microbiology》;主要学科是微生物、环境生态学、生物技术与应用微生物、农学、理学相关学科。综合来看,美国、德国以及中国在土壤酸杆菌研究领域处于优势地位;研究热点是微生物学和微生物生态学。展开更多
Soil seed bank refers to the sum of upper litter decay and all survival seeds in the soil. It plays a unique role in restoring the surface vegetation and protecting biodiversity. Chinese scholars have carried out exte...Soil seed bank refers to the sum of upper litter decay and all survival seeds in the soil. It plays a unique role in restoring the surface vegetation and protecting biodiversity. Chinese scholars have carried out extensive researches on the soil seed bank,and have obtained considerable achievements. On the basis of reading extensive literature,this paper summarized the current research results and found that the research contents of soil seed bank in China mainly involve the following aspects:( i) research method of soil seed bank;( ii) classification system of soil seed bank;( iii) spatial pattern of soil seed bank;( iv) relationship between soil seed bank and surface vegetation;( v) dynamic characteristic and seedling replanting of soil seed bank;( vi) application of soil seed bank in vegetation restoration. On the basis of the above summary,it came up with existing problems and future research direction of China's soil seed bank from system construction,field observation,disciplinary combination,interference factors,and community succession.展开更多
文摘A temporary pedestrian crossing has been set up for the first time in Nanchang City to facilitate the passage of residents,which has brought great convenience to surrounding residents and students.The author made an in-depth investigation on the temporary pedestrian crossing,analyzed its advantages and existing problems through field investigation,questionnaire survey,resident interview and other forms and put forward relevant suggestions by considering the current operation mode of the facilities,to provide reference for relevant departments to optimize the temporary pedestrian crossing and provide reliable and efficient solutions for other regions.
文摘After the analysis and discussion of the problems existing in the funds management of scientific research projects in enterprises,further analysis and attribution has been made and the corresponding countermeasures and solutions are proposed.The management should be mainly from the improvement of relevant management systems,and the establishment of communication and collaboration mechanisms with the financial department.
文摘Land is the foundation for human survival and development,and all human social and economic activities are inseparable from the land as a space carrier.With the continuous development of China's social economy,China is facing new social development needs such as urban-rural integration and rural revitalization.At the same time,China starts to attach great importance to ecology and has proposed the concept that lucid waters and lush mountains are invaluable assets.In this situation,the rational use of land resources,the optimization of land use structure and layout are also facing new challenges and problems,and more comprehensive consideration is required to make relevant optimization.Using the method of literature comparative analysis,from the conceptual connotation,basic theory,method model,and specific practice of land use structure and layout optimization,this paper analyzed and summarized the current research situations and problems,and finally came up with recommendations for the future research.
文摘In recent ten years in China,the application research of hypobaric storage was extended to the non-freeze preservation of cooked food,fresh-cut vegetables,edible fungi and fruits,preliminary processing of growing area and vacuum cold fresh chain to the cold chain breakage for horticultural products,and also to the investigation of principle and theory but the investigation results would have some evident difference. This paper will simply summarize the basic conception,principle,two withdrawing air type hypobaric storage technologies,and introduce many examples as mentioned above extending in China. This paper thinks that the master mechanism of preservation of LP for fresh horticultural products effectively inhibits the activity change of manifold enzymes,which are PAL,POD,PPO,CAT,CAD,SOD et al.,affecting the maturation and caducity of fresh horticultural products during LP storage for a short period,as a result,to reduce both risk of physiology obstacle and disease and to prolong their postharvest life; for the foreseeable future Burg's hypobaric storage technology and hypobaric short period treatment technology will play an important role in the preservation on fresh agricultural products and food preservation in storage and transportation,the preliminary processing of growing area,fresh logistics,establishing the operating platform of perishable food and high business value,fresh e-business,and fresh delivery for scattered families,establishing the operating platform of fresh-cut vegetables including edible fungi and so on in China or in the world.
基金Sponsored by “Less Popular and Lost Knowledge” Special Project of National Social Science Fund(19VJX156)
文摘Based on the investigation of the whole line of Beijing-Zhangjiakou Railway,the current situation of Beijing-Zhangjiakou Railway was recorded and analyzed by means of historical data collection,literature research,interview records,field survey,camera mapping,aerial photography,3D modeling and so forth.By combing the construction process and basic composition of this railway line,and sorting out the historical data of the existing railway heritage components and the current protection and utilization and through the analysis of current situation,the main contradiction and main problems existing in the protection of this railway line were pointed out.The author believes that the main contradiction in the protection of Beijing-Zhangjiakou Railway is the contradiction between the importance of Beijing Zhangjiakou Railway as the heritage of China’s railway and the weakness of the excavation of its heritage value and protection of it.In view of the main contradiction and the problems raised,the reasons were analyzed and the corresponding solutions and protection suggestions were given.
基金Supported by Key Scientific and Technological Planning Project of Anhui Province(201503zc03029)Bozhou University-Enterprise Cooperation Technological Innovation Platform Project(2016xqzx05)
文摘Functional rice has functions of adjusting human physiological functions of and preventing diseases. At present,there are researches both at home and abroad about the relationship between nutritional quality and physiological active substances of rice and human physiological activities. Through conventional breeding,gene mutation technology,and molecular-assisted selection( MAS) technology,it is feasible to select and breed new rice varieties and plants with certain health care functions.
文摘为了探究土壤酸杆菌研究的热点与趋势,基于Web of Science数据库,采用文献计量学方法,对世界上研究最前沿的20个研究机构、研究作者、学术期刊、学科和国家进行了文献计量学统计,进而了解土壤酸杆菌研究概况和动态。结果显示:2007—2017年土壤酸杆菌研究论文数量共1289篇;文献产出量逐年增加,2016年文献数量最高;中国、美国、德国、巴西、西班牙文献数量居世界前5位,中国文献数量最多,为423篇;中国科学院、俄罗斯科学院、南京农业大学、圣保罗大学、中国科学院大学酸杆菌文献较多;最有学术影响力的核心作者来自中国,主要核心期刊是《Microbial Ecology》、《Plos One》、《FEMS Microbial Ecology》、《Applied and Environmental Microbiology》、《Frontiers in Microbiology》;主要学科是微生物、环境生态学、生物技术与应用微生物、农学、理学相关学科。综合来看,美国、德国以及中国在土壤酸杆菌研究领域处于优势地位;研究热点是微生物学和微生物生态学。
基金Supported by Project of Natural Science Foundation of Tibet Autonomous Region(2016ZR-15-40)
文摘Soil seed bank refers to the sum of upper litter decay and all survival seeds in the soil. It plays a unique role in restoring the surface vegetation and protecting biodiversity. Chinese scholars have carried out extensive researches on the soil seed bank,and have obtained considerable achievements. On the basis of reading extensive literature,this paper summarized the current research results and found that the research contents of soil seed bank in China mainly involve the following aspects:( i) research method of soil seed bank;( ii) classification system of soil seed bank;( iii) spatial pattern of soil seed bank;( iv) relationship between soil seed bank and surface vegetation;( v) dynamic characteristic and seedling replanting of soil seed bank;( vi) application of soil seed bank in vegetation restoration. On the basis of the above summary,it came up with existing problems and future research direction of China's soil seed bank from system construction,field observation,disciplinary combination,interference factors,and community succession.