With the continuous improvement of material life,the tourism market is hot,this paper on traditional handicrafts and brand tourism as an entry point for in-depth analysis,as we all know,Miao silver jewellery is famous...With the continuous improvement of material life,the tourism market is hot,this paper on traditional handicrafts and brand tourism as an entry point for in-depth analysis,as we all know,Miao silver jewellery is famous at home and abroad,but the lack of branding has become a pain in the neck for its continued survival and development in the new era of innovation.The construction of the brand has become a necessary way for the Miao silver jewellery to continue to survive and develop in the new era.However,due to the limitations of the resources and conditions of the Miao silver jewellery producers and operators,they cannot form a brand image quickly and effectively in a short period of time by their own strength alone.In addition,the production and operation of Miao silver jewellery is not only the operation of products,but also the operation of culture and tourism,so it is a fast and effective strategy for the construction of the Miao silver jewellery brand by combining the study of the tourism culture and the operation of the production and by combining the different producers.展开更多
Complex of research and development work aimed at implementation of jewellery palladium based alloys technology has been carried out at JSC Krastsvetmet. A range of palladium alloys jewellery fabrication has been orga...Complex of research and development work aimed at implementation of jewellery palladium based alloys technology has been carried out at JSC Krastsvetmet. A range of palladium alloys jewellery fabrication has been organized. Compositions of a number of jewellery palladium alloys grade 850, 900, 950 and 990 have been proposed, their production and application in jewellery manufacture has been organized. To produce palladium alloys induction melting in inert atmosphere and melt pouring into a copper mould has been used. The ingots heat treatment conditions, as well as semi-finished jewelry plastic deformation parameters have been determined.展开更多
Laser-ablation laser-induced breakdown spectroscopy （LA-LIBS） based on single Nd：YAG laser is used to analyze copper impurity in silver jewellery with enhanced sensitivity and minimal sample ablation. 6-30 folds si...Laser-ablation laser-induced breakdown spectroscopy （LA-LIBS） based on single Nd：YAG laser is used to analyze copper impurity in silver jewellery with enhanced sensitivity and minimal sample ablation. 6-30 folds signal enhancement can be achieved under the re-excitation of the breakdown laser and the spatial resolution is only determined by the ablation laser. 50 ppm limit of detection of copper is achieved when the crater diameter is 17.2 μm under current experimental condition. This technique gives higher analysis sensitivity under the same sample ablation in comparison with single pulse （SP） LIBS. It is useful for high sensitive element mieroanalvsis of precious samples.展开更多
文摘With the continuous improvement of material life,the tourism market is hot,this paper on traditional handicrafts and brand tourism as an entry point for in-depth analysis,as we all know,Miao silver jewellery is famous at home and abroad,but the lack of branding has become a pain in the neck for its continued survival and development in the new era of innovation.The construction of the brand has become a necessary way for the Miao silver jewellery to continue to survive and develop in the new era.However,due to the limitations of the resources and conditions of the Miao silver jewellery producers and operators,they cannot form a brand image quickly and effectively in a short period of time by their own strength alone.In addition,the production and operation of Miao silver jewellery is not only the operation of products,but also the operation of culture and tourism,so it is a fast and effective strategy for the construction of the Miao silver jewellery brand by combining the study of the tourism culture and the operation of the production and by combining the different producers.
文摘Complex of research and development work aimed at implementation of jewellery palladium based alloys technology has been carried out at JSC Krastsvetmet. A range of palladium alloys jewellery fabrication has been organized. Compositions of a number of jewellery palladium alloys grade 850, 900, 950 and 990 have been proposed, their production and application in jewellery manufacture has been organized. To produce palladium alloys induction melting in inert atmosphere and melt pouring into a copper mould has been used. The ingots heat treatment conditions, as well as semi-finished jewelry plastic deformation parameters have been determined.
基金the National"973"Program of China(No.2012CB921900)the National Natural Science Foundation of China(Nos.11274123 and 11304100)the Basic Scientific Research Program of South China University of Technology(No.2014ZZ0066)
文摘Laser-ablation laser-induced breakdown spectroscopy （LA-LIBS） based on single Nd：YAG laser is used to analyze copper impurity in silver jewellery with enhanced sensitivity and minimal sample ablation. 6-30 folds signal enhancement can be achieved under the re-excitation of the breakdown laser and the spatial resolution is only determined by the ablation laser. 50 ppm limit of detection of copper is achieved when the crater diameter is 17.2 μm under current experimental condition. This technique gives higher analysis sensitivity under the same sample ablation in comparison with single pulse （SP） LIBS. It is useful for high sensitive element mieroanalvsis of precious samples.
