半自磨机具有多变量、非线性、强耦合、大滞后、时变性等特征,且很多过程参数难以检测,难以通过常规控制方法实现自动控制。为此,乌山选矿厂以人工经验为基础,找出半自磨机工作时给矿量、磨音、功率、轴压、磨矿浓度、给矿粒度比例之间...半自磨机具有多变量、非线性、强耦合、大滞后、时变性等特征,且很多过程参数难以检测,难以通过常规控制方法实现自动控制。为此,乌山选矿厂以人工经验为基础,找出半自磨机工作时给矿量、磨音、功率、轴压、磨矿浓度、给矿粒度比例之间的关系,并用计算机语言表述出来,得到一种定性的智能控制系统。实践表明:这种半自磨机智能控制系统可根据服务器设定的控制策略,实时采集半自磨机过程参数,自动调整至最优的半自磨机运行状态,在乌山选矿厂应用后较原人工控制可以提高处理量24.7 t/h、延长衬板使用寿命11.1 d、降低吨矿能耗0.49 k Wh/t,具有显著的经济效益,在金属矿山领域具有重要推广应用前景。展开更多
Selenium is an essential trace element for humans and animals.As the active center of selenoproteins,the addition of selenium is beneficial to enhance the antioxidant ability.However,the high cost limits the applicati...Selenium is an essential trace element for humans and animals.As the active center of selenoproteins,the addition of selenium is beneficial to enhance the antioxidant ability.However,the high cost limits the application of organic Se in agriculture animal production.Selenized glucose(SeGlu)is a newly invented organoselenium material with good stability,low toxicity and low cost.This assay found that SeGlu was able to increase selenium deposition in liver of newborn broilers,and enhance the antioxidant capacity of liver by elevating the activities of antioxidant enzymes such as total superoxide dismutase and glutathione peroxidase.This paper as the first example clarifying the mechanism of SeGlu to enhance the antioxidant ability of chicks,shows that SeGlu can be used as an organic selenium enrichment additive for early nutrition of poultry.As a cross-discipline study involving chemistry,biology and agriculture animal science,the work may be beneficial for studies in related fields and prompt the development of the selenium science.展开更多
文摘半自磨机具有多变量、非线性、强耦合、大滞后、时变性等特征,且很多过程参数难以检测,难以通过常规控制方法实现自动控制。为此,乌山选矿厂以人工经验为基础,找出半自磨机工作时给矿量、磨音、功率、轴压、磨矿浓度、给矿粒度比例之间的关系,并用计算机语言表述出来,得到一种定性的智能控制系统。实践表明:这种半自磨机智能控制系统可根据服务器设定的控制策略,实时采集半自磨机过程参数,自动调整至最优的半自磨机运行状态,在乌山选矿厂应用后较原人工控制可以提高处理量24.7 t/h、延长衬板使用寿命11.1 d、降低吨矿能耗0.49 k Wh/t,具有显著的经济效益,在金属矿山领域具有重要推广应用前景。
基金supported by the Open Project of Jiangsu Key Laboratory of Animal genetic Breeding and Molecular Design(No.AGBMD202202)the Jiangsu Agricultural Science and Technology Innovation Fund(Nos.[CX(21)3131]and[CX(20)3010])+2 种基金the“JBGS”Project of Seed Industry Revitalization in Jiangsu Province(Nos.[JBGS[2021]027 and JBGS[2021]105])the Science and Education Integration Project of Yangzhou University(No.[KJRH202115])Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD)。
文摘Selenium is an essential trace element for humans and animals.As the active center of selenoproteins,the addition of selenium is beneficial to enhance the antioxidant ability.However,the high cost limits the application of organic Se in agriculture animal production.Selenized glucose(SeGlu)is a newly invented organoselenium material with good stability,low toxicity and low cost.This assay found that SeGlu was able to increase selenium deposition in liver of newborn broilers,and enhance the antioxidant capacity of liver by elevating the activities of antioxidant enzymes such as total superoxide dismutase and glutathione peroxidase.This paper as the first example clarifying the mechanism of SeGlu to enhance the antioxidant ability of chicks,shows that SeGlu can be used as an organic selenium enrichment additive for early nutrition of poultry.As a cross-discipline study involving chemistry,biology and agriculture animal science,the work may be beneficial for studies in related fields and prompt the development of the selenium science.
