As English and Chinese belong to different language families,the left and right branching structures in the two languages are both similar and different.Generally speaking,Chinese has a predominance of left-branching ...As English and Chinese belong to different language families,the left and right branching structures in the two languages are both similar and different.Generally speaking,Chinese has a predominance of left-branching structures and English has a predominance of right-branching structures.That is to say,Chinese is used to using left branches in its expressions,while English is used to using right branches in its expressions.展开更多
DNA/octadecylamine(ODA) monolayers were transferred onto silicon substrates and the morphologies of the monolayers were investigated by Atomic Force Microscope(AFM). AFM images show that the morphologies of DNA dissol...DNA/octadecylamine(ODA) monolayers were transferred onto silicon substrates and the morphologies of the monolayers were investigated by Atomic Force Microscope(AFM). AFM images show that the morphologies of DNA dissolved in pure water are very different from those of DNA dissolved in the NaCl solution. When DNA molecules are dissovled in pure water, they will form ball-like structure in the monolayer. When the DNA molecules are dissolved in NaCl solution, they will form bunch lines. This DNA line offers a valuable template to direct the formation of unique inorganic nanomaterials.展开更多
In this paper,it gives the definition of the category of ■-sets and bi-induced maps whose true value set is a Locale,a complete Heyting algebra.In this category it defines the L_b-monomorphisms and the L_b-epimorphis...In this paper,it gives the definition of the category of ■-sets and bi-induced maps whose true value set is a Locale,a complete Heyting algebra.In this category it defines the L_b-monomorphisms and the L_b-epimorphisms.Especially,it gives the definition,the judgmental theorem of L_b-coequalizers.Furthermore,it defines L_b-regular epimorphisms and proves the judgmental theorem.At the end it concludes a result:the category of ■-sets and bi-induced maps is finitely cocomplete.展开更多
为满足日益增长的高品质、多样化、个性化旅游需求,采用基于位置的服务(Location Based Services,LBS),结合用户行为分析和智能算法处理,设计旅游路线推荐系统。该系统由个性化路线推荐模块、消息推送模块、用户管理模块、人工智能模块...为满足日益增长的高品质、多样化、个性化旅游需求,采用基于位置的服务(Location Based Services,LBS),结合用户行为分析和智能算法处理,设计旅游路线推荐系统。该系统由个性化路线推荐模块、消息推送模块、用户管理模块、人工智能模块等构成。系统性能测试结果表明,该推荐系统能显著提高旅游规划效率和用户满意度,可为旅游行业智慧化服务模式发展提供技术支持。展开更多
近几年来,生物传感器的研究工作发展非常迅速,新概念、新设想不断出现,使得生物传感器在环保,临床诊断、生命控制以及军事等方面的应用日趋广泛。葡萄糖酶(GOD)生物传感器是这类具有重要作用的生物传感器的一种,它不仅能测定葡萄糖,还...近几年来,生物传感器的研究工作发展非常迅速,新概念、新设想不断出现,使得生物传感器在环保,临床诊断、生命控制以及军事等方面的应用日趋广泛。葡萄糖酶(GOD)生物传感器是这类具有重要作用的生物传感器的一种,它不仅能测定葡萄糖,还能形成多酶体系,测定蔗糖、乳糖和磷酸根等物质。许多文章报导了 GOD 生物传感器的研究工作。我们曾报导过以聚吡咯为衬底,上面涂上 LB 膜的 GOD 生物传感器在医学领域内对发展微型和方便的 GOD 生物传感器的需求在不断的增加。为了使电极便于微型化,本工作在我们已制得的三电极的电池上加以改进。展开更多
LB film of new hybrid Polyquinolin/Trilacunary heteropolytungstoilicate (PQ/SiW9) was prepared and characterized by π-A isotherm, UV-Vis absorption spectroscopy, atomic force microscope(AFM), fluorescence spectroscop...LB film of new hybrid Polyquinolin/Trilacunary heteropolytungstoilicate (PQ/SiW9) was prepared and characterized by π-A isotherm, UV-Vis absorption spectroscopy, atomic force microscope(AFM), fluorescence spectroscopy. The results indicated that they had good film-forming property on the air-water interface. The molecular areas for these monolayers at zero pressure were estimated to be 7.2 nm2·mol-1. The collapse pressure of LB film was 46 mN·m-1. Their I^V curves results showed that the title LB films had good electric conductivity and the conductivity of the LB film increased with monolayers number.展开更多
基金sponsored by the teaching program“English Grammar” (No.209/1541801009).
文摘As English and Chinese belong to different language families,the left and right branching structures in the two languages are both similar and different.Generally speaking,Chinese has a predominance of left-branching structures and English has a predominance of right-branching structures.That is to say,Chinese is used to using left branches in its expressions,while English is used to using right branches in its expressions.
文摘DNA/octadecylamine(ODA) monolayers were transferred onto silicon substrates and the morphologies of the monolayers were investigated by Atomic Force Microscope(AFM). AFM images show that the morphologies of DNA dissolved in pure water are very different from those of DNA dissolved in the NaCl solution. When DNA molecules are dissovled in pure water, they will form ball-like structure in the monolayer. When the DNA molecules are dissolved in NaCl solution, they will form bunch lines. This DNA line offers a valuable template to direct the formation of unique inorganic nanomaterials.
基金Foundation item： Supported by the National Natural Science Foundation of China（10871137）
文摘In this paper,it gives the definition of the category of ■-sets and bi-induced maps whose true value set is a Locale,a complete Heyting algebra.In this category it defines the L_b-monomorphisms and the L_b-epimorphisms.Especially,it gives the definition,the judgmental theorem of L_b-coequalizers.Furthermore,it defines L_b-regular epimorphisms and proves the judgmental theorem.At the end it concludes a result:the category of ■-sets and bi-induced maps is finitely cocomplete.
文摘为满足日益增长的高品质、多样化、个性化旅游需求,采用基于位置的服务(Location Based Services,LBS),结合用户行为分析和智能算法处理,设计旅游路线推荐系统。该系统由个性化路线推荐模块、消息推送模块、用户管理模块、人工智能模块等构成。系统性能测试结果表明,该推荐系统能显著提高旅游规划效率和用户满意度,可为旅游行业智慧化服务模式发展提供技术支持。
文摘近几年来,生物传感器的研究工作发展非常迅速,新概念、新设想不断出现,使得生物传感器在环保,临床诊断、生命控制以及军事等方面的应用日趋广泛。葡萄糖酶(GOD)生物传感器是这类具有重要作用的生物传感器的一种,它不仅能测定葡萄糖,还能形成多酶体系,测定蔗糖、乳糖和磷酸根等物质。许多文章报导了 GOD 生物传感器的研究工作。我们曾报导过以聚吡咯为衬底,上面涂上 LB 膜的 GOD 生物传感器在医学领域内对发展微型和方便的 GOD 生物传感器的需求在不断的增加。为了使电极便于微型化,本工作在我们已制得的三电极的电池上加以改进。
文摘LB film of new hybrid Polyquinolin/Trilacunary heteropolytungstoilicate (PQ/SiW9) was prepared and characterized by π-A isotherm, UV-Vis absorption spectroscopy, atomic force microscope(AFM), fluorescence spectroscopy. The results indicated that they had good film-forming property on the air-water interface. The molecular areas for these monolayers at zero pressure were estimated to be 7.2 nm2·mol-1. The collapse pressure of LB film was 46 mN·m-1. Their I^V curves results showed that the title LB films had good electric conductivity and the conductivity of the LB film increased with monolayers number.
