This paper studies the geographical indication resources of Xinjiang and their distribution in administrative regions,national grain production functional zones,protected zones for production of major agricultural pro...This paper studies the geographical indication resources of Xinjiang and their distribution in administrative regions,national grain production functional zones,protected zones for production of major agricultural products,advantageous areas of Chinese characteristic agricultural products,and national advantageous characteristic industrial clusters.It analyzes the main problems existing in the protection of intellectual property rights of geographical indications.Besides,it discusses the strategies for the protection of intellectual property rights of geographical indications in the autonomous region and the building of regional public brands in the contest of the strategy of strengthening the country with intellectual property and rural revitalization strategy.Finally,it comes up with recommendations,including collecting and sorting out the human factors and natural factors of geographical indications of famous,excellent and special products,strengthening the protection of geographical indications of Xinjiang cotton and its products,enhancing the protection of geographical indications of grain and oil crops and sugar beet,implementing the protection of geographical indications for products with special needs for ethnic minorities,building national geographical indication product protection demonstration areas,formulating national and international standards for geographical indication products,and take full advantage of the EU-China Agreement on Cooperation on and Protection of Geographical Indications to actively participate in the EU protection of geographical indications.展开更多
Nanotubes, such as boron nitride nanotubes (BNNTs) and carbon nanotubes (CNTs), exhibit excellent mechanical properties. In this work, high-quality BNNTs were synthesized by ball milling and annealing. Subsequently, w...Nanotubes, such as boron nitride nanotubes (BNNTs) and carbon nanotubes (CNTs), exhibit excellent mechanical properties. In this work, high-quality BNNTs were synthesized by ball milling and annealing. Subsequently, well-dispersed 3vol%BNNTs/Cu and 3vol%CNTs/Cu composites were successfully prepared using ball milling, spark plasma sintering, and followed by hot-rolling. Moreover, the mechanical properties and strengthening mechanisms of BNNTs/Cu and CNTs/Cu composites were compared and discussed in details. At 293 K,both BNNTs/Cu and CNTs/Cu composites exhibited similar ultimate tensile strength (UTS) of~404 MPa, which is approximately 170%higher than pure Cu. However, at 873 K, the UTS and yield strength of BNNTs/Cu are 27%and 29%higher than those of CNTs/Cu, respectively.This difference can be attributed to the stronger inter-walls shear resistance, higher thermomechanical stability of BNNTs, and stronger bonding at the BNNTs/Cu interface as compared to the CNTs/Cu interface. These findings provide valuable insights into the potential of BNNTs as an excellent reinforcement for metal matrix composites, particularly at high temperature.展开更多
基金Supported by Foundation for Key Program of Hubei Province(LX201827)。
文摘This paper studies the geographical indication resources of Xinjiang and their distribution in administrative regions,national grain production functional zones,protected zones for production of major agricultural products,advantageous areas of Chinese characteristic agricultural products,and national advantageous characteristic industrial clusters.It analyzes the main problems existing in the protection of intellectual property rights of geographical indications.Besides,it discusses the strategies for the protection of intellectual property rights of geographical indications in the autonomous region and the building of regional public brands in the contest of the strategy of strengthening the country with intellectual property and rural revitalization strategy.Finally,it comes up with recommendations,including collecting and sorting out the human factors and natural factors of geographical indications of famous,excellent and special products,strengthening the protection of geographical indications of Xinjiang cotton and its products,enhancing the protection of geographical indications of grain and oil crops and sugar beet,implementing the protection of geographical indications for products with special needs for ethnic minorities,building national geographical indication product protection demonstration areas,formulating national and international standards for geographical indication products,and take full advantage of the EU-China Agreement on Cooperation on and Protection of Geographical Indications to actively participate in the EU protection of geographical indications.
基金financially supported by the National Natural Science Foundation of China (No.52171144)。
文摘Nanotubes, such as boron nitride nanotubes (BNNTs) and carbon nanotubes (CNTs), exhibit excellent mechanical properties. In this work, high-quality BNNTs were synthesized by ball milling and annealing. Subsequently, well-dispersed 3vol%BNNTs/Cu and 3vol%CNTs/Cu composites were successfully prepared using ball milling, spark plasma sintering, and followed by hot-rolling. Moreover, the mechanical properties and strengthening mechanisms of BNNTs/Cu and CNTs/Cu composites were compared and discussed in details. At 293 K,both BNNTs/Cu and CNTs/Cu composites exhibited similar ultimate tensile strength (UTS) of~404 MPa, which is approximately 170%higher than pure Cu. However, at 873 K, the UTS and yield strength of BNNTs/Cu are 27%and 29%higher than those of CNTs/Cu, respectively.This difference can be attributed to the stronger inter-walls shear resistance, higher thermomechanical stability of BNNTs, and stronger bonding at the BNNTs/Cu interface as compared to the CNTs/Cu interface. These findings provide valuable insights into the potential of BNNTs as an excellent reinforcement for metal matrix composites, particularly at high temperature.
