本研究制备CN负载Pt催化剂(CN-Pt)电催化氧化高效去除海水养殖循环水中的氨氮.结果表明,优化催化剂组分为CN1+15%Pt时,氨氮的电催化活性最高,氧化起始电位为-0.34 V vs.Hg/HgO;通过正交试验得出,最优实验参数为催化剂负载试剂浓度C0100 ...本研究制备CN负载Pt催化剂(CN-Pt)电催化氧化高效去除海水养殖循环水中的氨氮.结果表明,优化催化剂组分为CN1+15%Pt时,氨氮的电催化活性最高,氧化起始电位为-0.34 V vs.Hg/HgO;通过正交试验得出,最优实验参数为催化剂负载试剂浓度C0100 mg·mL^(-1)、阳极电势1.7 V vs.SCE、转速300 r·min^(-1)、pH 10;该实验条件下处理模拟海水养殖循环水,20 min氨氮去除率为79.89%.氨氮去除的主要作用因子是活性氯,无羟基自由基或硫酸根自由基的作用.在不改变pH条件下对实际养殖循环水进行处理,40 min氨氮去除率达97.04%.CN-Pt改性阳极电催化氧化去除海水养殖循环水中的氨氮效率高、易于操控,在循环水养殖系统的水处理中具有较大的应用潜力.展开更多
In the process of organizing kindergarten classroom activities, games are a common method. In the process of organizing game activities, children can enrich the forms of learning from the perspective of life, so that ...In the process of organizing kindergarten classroom activities, games are a common method. In the process of organizing game activities, children can enrich the forms of learning from the perspective of life, so that they can grow up from lively and interesting game activities. When organizing classroom activities, teachers guide children's interests and talents, and cultivate the common development of morality, intelligence, body, labor and other aspects. The diversity and interest of curriculum and games can improve the classroom teaching effect of kindergarten to a certain extent. Starting from children's psychological development, children's enthusiasm for participating in play activities can be improved in an all-round way so as to meet children's needs for physical and mental health development. From the perspective of game-based curriculum, this paper expounds the application of game-based curriculum in preschool classroom teaching activities, and probes into the communication and sharing of kindergarten classroom teaching.展开更多
As a treasure of Chinese traditional culture, wushu will soon be inherited and developed. But martial arts need to be inherited, we need to start with children, promote it in kindergartens, cultivate children's in...As a treasure of Chinese traditional culture, wushu will soon be inherited and developed. But martial arts need to be inherited, we need to start with children, promote it in kindergartens, cultivate children's interest in wushu and promote children's all-round development. The introduction of surgery into the kindergarten curriculum system enables kindergarten teachers to take the initiative to participate in martial arts learning and acquire certain martial arts skills. During the accumulated teaching process, a new road is opened for the inheritance and development of martial arts.展开更多
文摘本研究制备CN负载Pt催化剂(CN-Pt)电催化氧化高效去除海水养殖循环水中的氨氮.结果表明,优化催化剂组分为CN1+15%Pt时,氨氮的电催化活性最高,氧化起始电位为-0.34 V vs.Hg/HgO;通过正交试验得出,最优实验参数为催化剂负载试剂浓度C0100 mg·mL^(-1)、阳极电势1.7 V vs.SCE、转速300 r·min^(-1)、pH 10;该实验条件下处理模拟海水养殖循环水,20 min氨氮去除率为79.89%.氨氮去除的主要作用因子是活性氯,无羟基自由基或硫酸根自由基的作用.在不改变pH条件下对实际养殖循环水进行处理,40 min氨氮去除率达97.04%.CN-Pt改性阳极电催化氧化去除海水养殖循环水中的氨氮效率高、易于操控,在循环水养殖系统的水处理中具有较大的应用潜力.
文摘In the process of organizing kindergarten classroom activities, games are a common method. In the process of organizing game activities, children can enrich the forms of learning from the perspective of life, so that they can grow up from lively and interesting game activities. When organizing classroom activities, teachers guide children's interests and talents, and cultivate the common development of morality, intelligence, body, labor and other aspects. The diversity and interest of curriculum and games can improve the classroom teaching effect of kindergarten to a certain extent. Starting from children's psychological development, children's enthusiasm for participating in play activities can be improved in an all-round way so as to meet children's needs for physical and mental health development. From the perspective of game-based curriculum, this paper expounds the application of game-based curriculum in preschool classroom teaching activities, and probes into the communication and sharing of kindergarten classroom teaching.
文摘As a treasure of Chinese traditional culture, wushu will soon be inherited and developed. But martial arts need to be inherited, we need to start with children, promote it in kindergartens, cultivate children's interest in wushu and promote children's all-round development. The introduction of surgery into the kindergarten curriculum system enables kindergarten teachers to take the initiative to participate in martial arts learning and acquire certain martial arts skills. During the accumulated teaching process, a new road is opened for the inheritance and development of martial arts.
